AMR: Add option to convert between bw-effient and octet aligned mode

RFC3267 specifies two framing modes for AMR packets. An octet aligned
mode is specified where all fields of the AMR packets are aligned to
octet boundaries. The second framing mode is the bandwith efficient mode
where the fields are directly packed one after another.

Which format is used is usually communicated by out of band means,
however it is still possible to distinguish the framing mode by looking
at the frame. Once the framing mode is distinguished, the packet can be
converted into the opposite framing mode.

- Add new VTY rtp-patch options
- Add conversion function

Change-Id: Id46a3622a6b1995d5fce4bc611d409bcb4aef13b
Depends: libosmo-netif I5b5a0fa644d8dbb1f04f9d7e35312683c7b3d196
Related: OS#3807

.gitignore

@@ -22,6 +22,7 @@ src/utils/smpp_mirror
 *.pyc
 *.gcda
 *.gcno
+*.pc
 
 #configure
 aclocal.m4
@@ -82,3 +83,14 @@ gsn_restart
 src/openbsc.cfg*
 writtenconfig/
 gtphub_restart_count
+
+# manuals
+doc/manuals/*.html
+doc/manuals/*.svg
+doc/manuals/*.pdf
+doc/manuals/*__*.png
+doc/manuals/*.check
+doc/manuals/generated/
+doc/manuals/osmomsc-usermanual.xml
+doc/manuals/common
+doc/manuals/build

Makefile.am

@@ -18,13 +18,15 @@ SUBDIRS = \
 
 pkgconfigdir = $(libdir)/pkgconfig
 pkgconfig_DATA = \
-	libosmo-legacy-mgcp.pc \
 	libosmo-mgcp-client.pc \
 	$(NULL)
 
 BUILT_SOURCES = $(top_srcdir)/.version
 EXTRA_DIST = git-version-gen osmoappdesc.py .version
 
+AM_DISTCHECK_CONFIGURE_FLAGS = \
+	--with-systemdsystemunitdir=$$dc_install_base/$(systemdsystemunitdir)
+
 @RELMAKE@
 
 $(top_srcdir)/.version:

README

@@ -19,10 +19,6 @@ OsmoBSC, and receives and sends RTP streams as configured via MGCP.
 The libosmo-mgcp-client library exposes utilities used by e.g. OsmoMSC (found
 in osmo-msc.git) to instruct OsmoMGW via its MGCP service.
 
-The libosmo-mgcp library exposes MGCP server utilities used by e.g. OsmoBSC-NAT
-(found in osmo-bsc.git) to navigate RTP streams through a NAT.
-(At time of writing, this is still called libosmo-legacy-mgcp.)
-
 Find OsmoMGW issue tracker and wiki online at
 https://osmocom.org/projects/osmo-mgw
 https://osmocom.org/projects/osmo-mgw/wiki

configure.ac

@@ -39,10 +39,10 @@ AC_SEARCH_LIBS([dlopen], [dl dld], [LIBRARY_DL="$LIBS";LIBS=""])
 AC_SUBST(LIBRARY_DL)
 
 
-PKG_CHECK_MODULES(LIBOSMOCORE, libosmocore >= 0.12.0)
-PKG_CHECK_MODULES(LIBOSMOGSM, libosmogsm >= 0.12.0)
-PKG_CHECK_MODULES(LIBOSMOVTY, libosmovty >= 0.12.0)
-PKG_CHECK_MODULES(LIBOSMONETIF, libosmo-netif >= 0.3.0)
+PKG_CHECK_MODULES(LIBOSMOCORE, libosmocore >= 1.0.0)
+PKG_CHECK_MODULES(LIBOSMOGSM, libosmogsm >= 1.0.0)
+PKG_CHECK_MODULES(LIBOSMOVTY, libosmovty >= 1.0.0)
+PKG_CHECK_MODULES(LIBOSMONETIF, libosmo-netif >= 0.4.0)
 
 AC_ARG_ENABLE(sanitize,
 	[AS_HELP_STRING(
@@ -74,22 +74,6 @@ then
 	CPPFLAGS="$CPPFLAGS $WERROR_FLAGS"
 fi
 
-# Enable/disable transcoding within osmo-bsc_mgcp?
-AC_ARG_ENABLE([mgcp-transcoding], [AS_HELP_STRING([--enable-mgcp-transcoding], [Build the MGCP gateway with internal transcoding enabled.])],
-    [osmo_ac_mgcp_transcoding="$enableval"],[osmo_ac_mgcp_transcoding="no"])
-AC_ARG_WITH([g729], [AS_HELP_STRING([--with-g729], [Enable G.729 encoding/decoding.])], [osmo_ac_with_g729="$withval"],[osmo_ac_with_g729="no"])
-
-if test "$osmo_ac_mgcp_transcoding" = "yes" ; then
-    AC_SEARCH_LIBS([gsm_create], [gsm], [LIBRARY_GSM="$LIBS";LIBS=""], [AC_MSG_ERROR([--enable-mgcp-transcoding: cannot find usable libgsm])])
-    AC_SUBST(LIBRARY_GSM)
-    if test "$osmo_ac_with_g729" = "yes" ; then
-	PKG_CHECK_MODULES(LIBBCG729, libbcg729 >= 0.1, [AC_DEFINE([HAVE_BCG729], [1], [Use bgc729 decoder/encoder])])
-    fi
-    AC_DEFINE(BUILD_MGCP_TRANSCODING, 1, [Define if we want to build the MGCP gateway with transcoding support])
-fi
-AM_CONDITIONAL(BUILD_MGCP_TRANSCODING, test "x$osmo_ac_mgcp_transcoding" = "xyes")
-AC_SUBST(osmo_ac_mgcp_transcoding)
-
 dnl Checks for typedefs, structures and compiler characteristics
 
 # The following test is taken from WebKit's webkit.m4
@@ -144,6 +128,64 @@ AC_MSG_CHECKING([whether to enable VTY/CTRL tests])
 AC_MSG_RESULT([$enable_ext_tests])
 AM_CONDITIONAL(ENABLE_EXT_TESTS, test "x$enable_ext_tests" = "xyes")
 
+# Generate manuals
+AC_ARG_ENABLE(manuals,
+	[AS_HELP_STRING(
+		[--enable-manuals],
+		[Generate manual PDFs [default=no]],
+	)],
+	[osmo_ac_build_manuals=$enableval], [osmo_ac_build_manuals="no"])
+AM_CONDITIONAL([BUILD_MANUALS], [test x"$osmo_ac_build_manuals" = x"yes"])
+AC_ARG_VAR(OSMO_GSM_MANUALS_DIR, [path to common osmo-gsm-manuals files, overriding pkg-config and "../osmo-gsm-manuals"
+	fallback])
+if test x"$osmo_ac_build_manuals" = x"yes"
+then
+	# Find OSMO_GSM_MANUALS_DIR (env, pkg-conf, fallback)
+	if test -n "$OSMO_GSM_MANUALS_DIR"; then
+		echo "checking for OSMO_GSM_MANUALS_DIR... $OSMO_GSM_MANUALS_DIR (from env)"
+	else
+		OSMO_GSM_MANUALS_DIR="$($PKG_CONFIG osmo-gsm-manuals --variable=osmogsmmanualsdir 2>/dev/null)"
+		if test -n "$OSMO_GSM_MANUALS_DIR"; then
+			echo "checking for OSMO_GSM_MANUALS_DIR... $OSMO_GSM_MANUALS_DIR (from pkg-conf)"
+		else
+			OSMO_GSM_MANUALS_DIR="../osmo-gsm-manuals"
+			echo "checking for OSMO_GSM_MANUALS_DIR... $OSMO_GSM_MANUALS_DIR (fallback)"
+		fi
+	fi
+	if ! test -d "$OSMO_GSM_MANUALS_DIR"; then
+		AC_MSG_ERROR("OSMO_GSM_MANUALS_DIR does not exist! Install osmo-gsm-manuals or set OSMO_GSM_MANUALS_DIR.")
+	fi
+
+	# Find and run check-depends
+	CHECK_DEPENDS="$OSMO_GSM_MANUALS_DIR/check-depends.sh"
+	if ! test -x "$CHECK_DEPENDS"; then
+		CHECK_DEPENDS="osmo-gsm-manuals-check-depends"
+	fi
+	if ! $CHECK_DEPENDS; then
+		AC_MSG_ERROR("missing dependencies for --enable-manuals")
+	fi
+
+	# Put in Makefile with absolute path
+	OSMO_GSM_MANUALS_DIR="$(realpath "$OSMO_GSM_MANUALS_DIR")"
+	AC_SUBST([OSMO_GSM_MANUALS_DIR])
+fi
+
+# https://www.freedesktop.org/software/systemd/man/daemon.html
+AC_ARG_WITH([systemdsystemunitdir],
+     [AS_HELP_STRING([--with-systemdsystemunitdir=DIR], [Directory for systemd service files])],,
+     [with_systemdsystemunitdir=auto])
+AS_IF([test "x$with_systemdsystemunitdir" = "xyes" -o "x$with_systemdsystemunitdir" = "xauto"], [
+     def_systemdsystemunitdir=$($PKG_CONFIG --variable=systemdsystemunitdir systemd)
+
+     AS_IF([test "x$def_systemdsystemunitdir" = "x"],
+   [AS_IF([test "x$with_systemdsystemunitdir" = "xyes"],
+    [AC_MSG_ERROR([systemd support requested but pkg-config unable to query systemd package])])
+    with_systemdsystemunitdir=no],
+   [with_systemdsystemunitdir="$def_systemdsystemunitdir"])])
+AS_IF([test "x$with_systemdsystemunitdir" != "xno"],
+      [AC_SUBST([systemdsystemunitdir], [$with_systemdsystemunitdir])])
+AM_CONDITIONAL([HAVE_SYSTEMD], [test "x$with_systemdsystemunitdir" != "xno"])
+
 AC_MSG_RESULT([CFLAGS="$CFLAGS"])
 AC_MSG_RESULT([CPPFLAGS="$CPPFLAGS"])
 
@@ -151,25 +193,22 @@ dnl Generate the output
 AM_CONFIG_HEADER(bscconfig.h)
 
 AC_OUTPUT(
-    libosmo-legacy-mgcp.pc
     libosmo-mgcp-client.pc
     include/Makefile
     include/osmocom/Makefile
-    include/osmocom/legacy_mgcp/Makefile
     include/osmocom/mgcp_client/Makefile
     include/osmocom/mgcp/Makefile
     src/Makefile
-    src/libosmo-legacy-mgcp/Makefile
     src/libosmo-mgcp-client/Makefile
     src/libosmo-mgcp/Makefile
-    src/osmo-bsc_mgcp/Makefile
     src/osmo-mgw/Makefile
     tests/Makefile
     tests/atlocal
-    tests/legacy_mgcp/Makefile
     tests/mgcp_client/Makefile
     tests/mgcp/Makefile
     doc/Makefile
     doc/examples/Makefile
+    doc/manuals/Makefile
     contrib/Makefile
+    contrib/systemd/Makefile
     Makefile)

contrib/Makefile.am

@@ -1 +1,3 @@
+SUBDIRS = systemd
+
 EXTRA_DIST = ipa.py

contrib/jenkins.sh

@@ -1,5 +1,10 @@
 #!/usr/bin/env bash
 # jenkins build helper script for openbsc.  This is how we build on jenkins.osmocom.org
+#
+# environment variables:
+# * WITH_MANUALS: build manual PDFs if set to "1"
+# * PUBLISH: upload manuals after building if set to "1" (ignored without WITH_MANUALS = "1")
+#
 
 if ! [ -x "$(command -v osmo-build-dep.sh)" ]; then
 	echo "Error: We need to have scripts/osmo-deps.sh from http://git.osmocom.org/osmo-ci/ in PATH !"
@@ -23,10 +28,18 @@ verify_value_string_arrays_are_terminated.py $(find . -name "*.[hc]")
 
 export PKG_CONFIG_PATH="$inst/lib/pkgconfig:$PKG_CONFIG_PATH"
 export LD_LIBRARY_PATH="$inst/lib"
+export PATH="$inst/bin:$PATH"
 
 osmo-build-dep.sh libosmo-abis
 osmo-build-dep.sh libosmo-netif
 
+# Additional configure options and depends
+CONFIG=""
+if [ "$WITH_MANUALS" = "1" ]; then
+	osmo-build-dep.sh osmo-gsm-manuals
+	CONFIG="--enable-manuals"
+fi
+
 set +x
 echo
 echo
@@ -37,13 +50,17 @@ set -x
 
 cd "$base"
 autoreconf --install --force
-./configure $MGCP --enable-vty-tests --enable-external-tests --enable-werror
+./configure --enable-vty-tests --enable-external-tests --enable-werror $CONFIG
 $MAKE $PARALLEL_MAKE
 LD_LIBRARY_PATH="$inst/lib" $MAKE check \
   || cat-testlogs.sh
 LD_LIBRARY_PATH="$inst/lib" \
-  DISTCHECK_CONFIGURE_FLAGS="$MGCP --enable-vty-tests --enable-external-tests" \
+  DISTCHECK_CONFIGURE_FLAGS="--enable-vty-tests --enable-external-tests $CONFIG" \
   $MAKE distcheck \
   || cat-testlogs.sh
 
+if [ "$WITH_MANUALS" = "1" ] && [ "$PUBLISH" = "1" ]; then
+	make -C "$base/doc/manuals" publish
+fi
+
 osmo-clean-workspace.sh

contrib/systemd/Makefile.am

@@ -0,0 +1,6 @@
+EXTRA_DIST = osmo-mgw.service
+
+if HAVE_SYSTEMD
+systemdsystemunit_DATA = \
+  osmo-mgw.service
+endif

contrib/systemd/osmo-bsc-mgcp.service

@@ -1,11 +0,0 @@
-[Unit]
-Description=OpenBSC MGCP
-
-[Service]
-Type=simple
-Restart=always
-ExecStart=/usr/bin/osmo-bsc_mgcp -s -c /etc/osmocom/osmo-bsc-mgcp.cfg
-RestartSec=2
-
-[Install]
-WantedBy=multi-user.target

debian/changelog

@@ -1,3 +1,110 @@
+osmo-mgw (1.5.0) unstable; urgency=medium
+
+  [ Pau Espin Pedrol ]
+  * gitignore: Filter *.pc
+  * configure: Find correct libgsm's gsm.h header
+  * vty: Fix typo writing bts-jitter-buffer-delay-{min,max}
+  * Remove libosmo-legacy-mgcp and osmo-bsc-mgcp
+  * debian: Remove dangling symlink to osmo-bsc-mgcp.service
+  * Install systemd services with autotools
+  * Install sample cfg file to /etc/osmocom
+  * mgcp: Fix osmux_cid_bitmap static array size calculation
+  * mgcp_osmux: Use define to calculate rtp_ssrc_winlen
+  * osmux: Avoid initing output without enabling osmux
+  * mgcp: Log endpoint nr consistently as hex
+  * osmux_send_dummy: Avoid logging incorrectly and sending if osmux not enabled
+  * osmux: Don't process regular osmux frames if disabled by cfg
+  * osmux: Move parse_cid of legacy dummy frames to own function
+  * osmux: Make func handling dummy frames independent of endp type
+  * osmux: allow enabling osmux only on correct activating state
+  * osmux: Improve checks around activating and using enabled osmux
+  * osmux.h: Document enum osmux_state
+  * osmux: Avoid processing further frames if conn not found
+
+  [ Philipp Maier ]
+  * mgcp_client_fsm: allow ptmap in mgcp_client_fsm as well
+  * mgcp_network: translate payload type numbers in RTP packets
+  * mgcp_client: use IETF source port as for MGCP
+  * mgcp_client: increment local port number when port is in use
+  * mgcp_test: release endpoints after use
+  * network: do not patch PT of RTCP packets
+  * network: check packets before further processing
+  * Cosmetic: remove misplaced line break
+  * mgcp_sdp: restructure mgcp_write_response_sdp() (rtpmap)
+  * mgcp_sdp: restructure mgcp_write_response_sdp() (audio)
+  * mgcp_client: check local port only once
+  * mgcp_client_fsm: switch to MGCP_CONN_RECV_SEND in add_audio()
+  * mgcp_protocol: increase buffer space for codec name in LCO
+  * osmo-mgw: Add vty reference manual
+
+  [ Neels Hofmeyr ]
+  * fix handling of "Wrong domain name" error
+  * interpret domain '*' as 'allow any domain'
+  * cosmetic: log: fix "CallIDs does not match"
+  * fix 3G hack: allow any IP for loopback and 0.0.0.0
+  * cosmetic: drop code dup in mgcp_client_fsm.c CRCX
+  * add X-Osmo-IGN MGCP header to ignore CallID
+  * X-Osmo-IGN: rather parse items by token, not char
+  * mgcp_test: fix log of conn_id presence
+  * mgcp_test: fix get_conn_id_from_response() CI length
+  * mgcp_client_test: cosmetically re-arrange reply_to() args
+  * mgcp_client_test: use "\r\n\r\n" instead of "\n\n"
+  * mgcp_client_test: also verify received conn_id
+  * mgcp_client_test: test long conn_id
+  * mgcp_client: error on too long conn id
+  * mgcp_common: rename to MGCP_CONN_ID_MAXLEN
+  * doc: fix mgcp_verify_ci() return val doc
+  * mgcp_verify_ci(): return meaningful error codes
+  * fix mgcp_verify_ci(): off-by-one in max len check
+  * generate shorter 'I:' conn IDs
+  * mgcp_conn_get(): compare conn Id ('I:') case insensitively
+  * mgcp_conn_get(): match conn Id ('I:') despite leading zeros
+  * cosmetic: mgcp_test: fix get_conn_id_from_response()
+  * comment: indicate struct type for mgcp_endpoint.conns
+  * log: avoid logging early media as error
+  * fix osmo-mgw -s; fixes osmo-mgw.service using -s
+  * Importing history from osmo-gsm-manuals.git
+  * OsmoMGW: update VTY reference
+  * OsmoMGW: document the 'X-Osmo-IGN' MGCP extension
+  * mgw: update vty reference
+  * drop/replace very weird logging in mgcp_client.c
+  * check_rtp: on IP:port errors, log the IP and port
+  * osmo-mgw: err-log: include expected domain name
+  * mgcp_client_vty: fix missing talloc_free
+  * mgcp_client: drop a bunch of dead code
+  * mgcp_client: logging tweaks
+  * mgcp_client: make domain part of endpoint configurable
+  * mgcp_client: tweak some log levels INFO -> {DEBUG,ERROR}
+
+  [ Stefan Sperling ]
+  * add VTY commands which show specific mgcp endpoints
+  * add MGCP CRCX command statistics to osmo-mgw
+  * show RTP TX/RX stats in 'mgcp show stats' output
+  * use local variable for rate counters in handle_create_con()
+  * add more mgcp crxc error counters
+  * add MDCX command statistics to osmo-mgw
+  * add aggregated rtp connection stats to osmo-mgw
+  * add DLCX command statistics to osmo-mgw
+
+  [ Harald Welte ]
+  * debian/rules: Don't overwrite .tarball-version
+  * check_rtp_origin(): Don't memcmp sockadd_in and in_addr
+  * check_rtp_origin(): Avoid using memcmp for comparing integer types
+  * vty-ref: Update URI of docbook 5.0 schema
+
+  [ Daniel Willmann ]
+  * mgw: Add new VTY reference
+  * Add initial OsmoMGW manual
+
+  [ Oliver Smith ]
+  * build manuals moved here from osmo-gsm-manuals.git
+  * jenkins.sh: remove leftover MGCP env variable
+  * Fix DISTCHECK_CONFIGURE_FLAGS override
+  * contrib/jenkins.sh: build and publish manuals
+  * contrib: fix makedistcheck with disabled systemd
+
+ -- Harald Welte <laforge@gnumonks.org>  Sun, 20 Jan 2019 15:02:18 +0100
+
 osmo-mgw (1.4.0) unstable; urgency=medium
 
   [ Philipp Maier ]

debian/control

@@ -19,7 +19,7 @@ Multi-Arch: foreign
 Depends: ${misc:Depends}, ${shlibs:Depends}
 Description: OsmoMGW: Osmocom's Media Gateway for 2G and 3G circuit-switched mobile networks
 
-Package: libosmo-mgcp-client3
+Package: libosmo-mgcp-client5
 Section: libs
 Architecture: any
 Multi-Arch: same
@@ -31,26 +31,5 @@ Package: libosmo-mgcp-client-dev
 Section: libdevel
 Architecture: any
 Multi-Arch: same
-Depends: libosmo-mgcp-client3 (= ${binary:Version}), ${misc:Depends}
+Depends: libosmo-mgcp-client5 (= ${binary:Version}), ${misc:Depends}
 Description: libosmo-mgcp-client: Osmocom's Media Gateway Control Protocol client utilities
-
-Package: osmo-bsc-mgcp
-Architecture: any
-Multi-Arch: foreign
-Depends: libosmo-legacy-mgcp0, ${misc:Depends}, ${shlibs:Depends}
-Description: OsmoBSC-MGCP: Osmocom's Legacy Media Gateway; use osmo-mgw instead.
-
-Package: libosmo-legacy-mgcp0
-Section: libs
-Architecture: any
-Multi-Arch: same
-Pre-Depends: ${misc:Pre-Depends}
-Depends: ${misc:Depends}, ${shlibs:Depends}
-Description: libosmo-legacy-mgcp: Osmocom's Legacy Media Gateway server library; use libosmo-mgcp instead.
-
-Package: libosmo-legacy-mgcp-dev
-Section: libdevel
-Architecture: any
-Multi-Arch: same
-Depends: libosmo-legacy-mgcp0 (= ${binary:Version}), ${misc:Depends}
-Description: libosmo-legacy-mgcp: Osmocom's Legacy Media Gateway server library; use libosmo-mgcp instead.

debian/copyright

@@ -40,30 +40,6 @@ License:   GPL-2.0+
  You should have received a copy of the GNU General Public License
  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-Files:     src/libosmo-legacy-mgcp/g711common.h
-Copyright: 2000 Abramo Bagnara <abramo@alsa-project.org>
-License:   GPL-2.0+
- Wrapper for linphone Codec class by Simon Morlat <simon.morlat@linphone.org>
- .
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
- .
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- GNU General Public License for more details.
- .
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- .
- The FSF address in the above text is the old one.
- .
- On Debian systems, the complete text of the GNU General Public License
- Version 2 can be found in `/usr/share/common-licenses/GPL-2'.
-
 Files:     tests/vty_test_runner.py
 Copyright: 2013 Holger Hans Peter Freyther
            2013 Katerina Barone-Adesi <kat.obsc@gmail.com>
@@ -87,15 +63,3 @@ License:   GPL-3.0+
 Files:     osmoappdesc.py
 Copyright: 2013 Katerina Barone-Adesi <kat.obsc@gmail.com>
 License:   GPL-3.0+
-
-Files:     src/libosmo-legacy-mgcp/mgcp_osmux.c
-Copyright: 2012-2013 On Waves ehf <http://www.on-waves.com>
-           2012-2013 Pablo Neira Ayuso <pablo@gnumonks.org>
-License:   AGPL-3.0+
- All rights not specifically granted under this license are reserved.
- .
- This program is free software; you can redistribute it and/or modify it
- under the terms of the GNU Affero General Public License as published by the
- Free Software Foundation; either version 3 of the License, or (at your
- option) any later version.
-

debian/libosmo-legacy-mgcp-dev.install

@@ -1,4 +0,0 @@
-usr/include/osmocom/legacy_mgcp
-usr/lib/*/libosmo-legacy-mgcp.so
-usr/lib/*/libosmo-legacy-mgcp.a
-usr/lib/*/pkgconfig/libosmo-legacy-mgcp.pc

debian/libosmo-legacy-mgcp0.install

@@ -1 +0,0 @@
-usr/lib/*/libosmo-legacy-mgcp.so.*

debian/osmo-bsc-mgcp.install

@@ -1,2 +0,0 @@
-usr/bin/osmo-bsc_mgcp
-usr/share/doc/osmo-mgw/examples/osmo-bsc_mgcp/mgcp.cfg

debian/osmo-bsc-mgcp.service

@@ -1 +0,0 @@
-../contrib/systemd/osmo-bsc-mgcp.service

debian/osmo-mgw.install

@@ -1,2 +1,4 @@
+etc/osmocom/osmo-mgw.cfg
+lib/systemd/system/osmo-mgw.service
 usr/bin/osmo-mgw
 usr/share/doc/osmo-mgw/examples/osmo-mgw/osmo-mgw.cfg

debian/osmo-mgw.service

@@ -1 +0,0 @@
-../contrib/systemd/osmo-mgw.service

debian/rules

@@ -29,8 +29,7 @@ CFLAGS += -g
 override_dh_auto_test:
 	dh_auto_test || (find . -name testsuite.log -exec cat {} \; ; false)
 
-override_dh_autoreconf:
-	echo $(VERSION) > .tarball-version
-	dh_autoreconf
+override_dh_auto_configure:
+	dh_auto_configure -- --with-systemdsystemunitdir=/lib/systemd/system
 
 # See https://www.debian.org/doc/manuals/developers-reference/best-pkging-practices.html#bpp-dbg

doc/Makefile.am

@@ -1,3 +1,4 @@
 SUBDIRS = \
 	examples \
+	manuals \
 	$(NULL)

doc/examples/Makefile.am

@@ -1,3 +1,11 @@
+OSMOCONF_FILES = \
+	osmo-mgw/osmo-mgw.cfg
+
+osmoconfdir = $(sysconfdir)/osmocom
+osmoconf_DATA = $(OSMOCONF_FILES)
+
+EXTRA_DIST = $(OSMOCONF_FILES)
+
 CFG_FILES = find $(srcdir) -name '*.cfg*' | sed -e 's,^$(srcdir),,'
 
 dist-hook:

doc/examples/osmo-bsc_mgcp/mgcp.cfg

@@ -1,14 +0,0 @@
-!
-! MGCP configuration example
-!
-mgcp
- !local ip 10.23.24.2
- !bts ip 10.24.24.1
- !bind ip 10.23.24.1
- bind port 2427
- rtp base 4000
- rtp force-ptime 20
- sdp audio payload number 98
- sdp audio payload name AMR/8000
- number endpoints 31
- no rtcp-omit

doc/manuals/Makefile.am

@@ -0,0 +1,16 @@
+EXTRA_DIST = osmomgw-usermanual.adoc \
+    osmomgw-usermanual-docinfo.xml \
+    osmomgw-vty-reference.xml \
+    chapters \
+    vty
+
+if BUILD_MANUALS
+  ASCIIDOC = osmomgw-usermanual.adoc
+  ASCIIDOC_DEPS = $(srcdir)/chapters/*.adoc
+  include $(OSMO_GSM_MANUALS_DIR)/build/Makefile.asciidoc.inc
+
+  VTY_REFERENCE = osmomgw-vty-reference.xml
+  include $(OSMO_GSM_MANUALS_DIR)/build/Makefile.vty-reference.inc
+
+  include $(OSMO_GSM_MANUALS_DIR)/build/Makefile.common.inc
+endif

doc/manuals/chapters/configuration.adoc

@@ -0,0 +1,57 @@
+== Configuring OsmoMGW
+
+A basic configation of OsmoMGW mainly consists of specifying the IP address
+and port on which to listen to MGCP commands, but changing the port range at
+which the RTP streams terminate as well as limiting operation to a single call
+agent can be done as well as changing the number of endpoints.
+
+=== Configuring MGCP
+
+By default OsmoMGW listens for MGCP on port 2427 on any IP address. If a call
+agent address is configured then OsmoMGW will only answer MGCP commands from
+that IP port 2727, otherwise all sources are handled. A domain can be
+specified
+
+.Example: MGCP configuration
+----
+OsmoMGW(config-mgcp)# bind ip 127.0.0.1
+OsmoMGW(config-mgcp)# bind port 2427
+OsmoMGW(config-mgcp)# call-agent ip 127.0.0.1
+OsmoMGW(config-mgcp)# domain mgw-bsc
+OsmoMGW(config-mgcp)# local ip 127.0.0.1
+----
+
+=== Configuring the trunk
+
+The first trunk (trunk 0) is considered a virtual trunk in OsmoMGW. All
+endpoints of type "rtpbridge" are routed here. The virtual trunk is configured
+in the config-mgcp context.
+
+All other trunks are configured in the config-mgcp-trunk context, but the
+commands used are identical. Right now trunks are considered only for ds/e1
+type endpoints which are not yet implemented. Don't use trunks other than the
+"virtual" trunk 0.
+
+.Example: MGCP trunk configuration
+----
+OsmoMGW(config-mgcp)# number endpoints 63 <1>
+OsmoMGW(config-mgcp)# rtp bind-ip 10.0.0.1 <2>
+OsmoMGW(config-mgcp)# rtp port-range 12000-14000 <3>
+----
+<1> Maximum number of endpoints that can be allocated at once
+<2> Use this IP when binding RTP endpoints
+<3> Use ports in this range when binding RTP endpoints
+
+There are some options to tweak how RTP forwarding behaves in OsmoMGW:
+
+.Example: MGCP trunk rtp options
+----
+OsmoMGW(config-mgcp)# rtp keep-alive 30 <1>
+OsmoMGW(config-mgcp)# rtp-patch ssrc <2>
+OsmoMGW(config-mgcp)# rtp-patch timestamp <3>
+----
+<1> Send dummy UDP packets periodically to RTP destination
+<2> Hide SSRC changes
+<3> Ensure RTP timestamp is aligned with frame duration
+
+

doc/manuals/chapters/counters.adoc

@@ -0,0 +1,4 @@
+[[counters]]
+== Counters
+
+include::./counters_generated.adoc[]

doc/manuals/chapters/counters_generated.adoc

@@ -0,0 +1,14 @@
+
+// autogenerated by show asciidoc counters
+These counters and their description based on OsmoMGW 1.3.0.34-9cd52 (OsmoMGW).
+
+=== Rate Counters
+
+// generating tables for rate_ctr_group
+== Osmo Stat Items
+
+// generating tables for osmo_stat_items
+== Osmo Counters
+
+// generating tables for osmo_counters
+// there are no ungrouped osmo_counters

doc/manuals/chapters/mgcp_extensions.adoc

@@ -0,0 +1,68 @@
+== MGCP Extensions
+
+The MGCP protocol is extendable. The following non-standard extensions are
+understood by OsmoMGW.
+
+=== `X-Osmo-IGN`
+
+`X-Osmo-IGN` indicates to OsmoMGW that specific items of an endpoint should be
+ignored, so that it is lenient on mismatching values that would normally
+indicate collisions or configuration errors.
+
+==== `X-Osmo-IGN` Format
+
+The value part of X-Osmo-IGN must be one or more items separated by one or more
+spaces. Each item consists of one or more non-whitespace characters.
+
+.Example: `X-Osmo-IGN` format with three ficticious items "X", "abc" and "123".
+----
+X-Osmo-IGN: X abc 123
+----
+
+`X-Osmo-IGN` must be issued in the MGCP section (typically as its last item),
+before the SDP section starts.
+
+==== Supported `X-Osmo-IGN` Items
+
+Currently, the following `X-Osmo-IGN` items are supported:
+
+* `C`: ignore CallID mismatches, i.e. differing "C" values between connections
+  on the same endpoint.
+
+.Note:
+`X-Osmo-IGN` does not support ignoring mismatches on the domain part of
+an endpoint name, e.g. ignoring a mismatch on "example.com" in
+`rtpbridge/123abc@example.com`. Instead, you may globally configure OsmoMGW
+with `mgcp` / `domain *` to permit all domain parts.
+
+===== `X-Osmo-IGN: C`
+
+By default, OsmoMGW verifies that all CallIDs ("C" values) match for all
+connections on any one given endpoint. To ignore CallID mismatches, pass a `C`
+in the `X-Osmo-IGN` header, for the first or the second `CRCX` on an endpoint.
+When the `X-Osmo-IGN: C` is sent for any one `CRCX` on an endpoint, CallID
+mismatches will be ignored for that and all subsequent messages for that
+endpoint. Hence this header only needs to be included once per endpoint, in any
+`CRCX` message that precedes or coincides with a CallID mismatch.
+
+This is particularly useful for a BSC that is connected to an A/SCCPlite MSC,
+where the BSC and MSC each are expected to configure their respective own
+connection on a shared endpoint. For A/SCCPlite, it is impossible for the BSC
+to know the CallID that the MSC will use, so CallID mismatches are inevitable.
+See also OsmoBSC, which will by default pass the `X-Osmo-IGN: C` header for
+endpoints associated with an A/SCCPlite MSC.
+
+.Example: `CRCX` message that instructs OsmoMGW to ignore CallID mismatches
+----
+CRCX 2 rtpbridge/123abc@mgw MGCP 1.0
+M: recvonly
+C: 2
+L: p:20
+X-Osmo-IGN: C
+
+v=0
+c=IN IP4 123.12.12.123
+m=audio 5904 RTP/AVP 97
+a=rtpmap:97 GSM-EFR/8000
+a=ptime:40
+----

doc/manuals/chapters/overview.adoc

@@ -0,0 +1,100 @@
+[[overview]]
+== Overview
+
+This manual should help you getting started with OsmoMGW. It will cover
+aspects of configuring and running the media gateway.
+
+[[intro_overview]]
+=== About OsmoMGW
+
+OsmoMGW is the Osmocom implementation of a media gateway to handle user
+plane (voice) traffic in cellular networks. It can connect and optionally
+transcode RTP voice streams between different network elements such as BTSs
+and external entities like SIP. It is typically co-located with both OsmoBSC
+and OsmoMSC and controlled by them via MGCP, the Media Gateway Control
+Protocol.
+
+[[fig-bsc]]
+.OsmoMGW used with OsmoBSC
+[graphviz]
+----
+digraph G {
+    rankdir = LR;
+    OsmoBTS -> OsmoBSC [label="Abis/IP"];
+    OsmoBSC -> OsmoMSC [label="3GPP AoIP"];
+    OsmoBSC -> OsmoMGW [label="MGCP"];
+    OsmoBTS -> OsmoMGW [label="RTP",dir=both];
+    OsmoMGW -> OsmoMSC [label="RTP",dir=both];
+    {rank=same OsmoBSC OsmoMGW}
+    OsmoMGW [color=red];
+}
+----
+
+[[fig-msc]]
+.OsmoMGW used with OsmoMSC
+[graphviz]
+----
+digraph G {
+    rankdir = LR;
+    BTS -> BSC [label="Abis"];
+    BSC -> OsmoMSC [label="3GPP AoIP"];
+    OsmoMSC -> OsmoMGW [label="MGCP"];
+    BSC -> OsmoMGW [label="RTP",dir=both];
+    OsmoMSC -> OsmoSIP [label="MNCC"];
+    OsmoSIP -> PBX [label="SIP Trunk"];
+    OsmoMGW -> PBX [label="RTP",dir=both];
+    {rank=same OsmoMSC OsmoMGW}
+    OsmoSIP [label="osmo-sip-connector"];
+    OsmoMGW [color=red];
+
+    hNodeB -> OsmoHNBGW [label="Iuh"];
+    OsmoHNBGW -> OsmoMSC [label="IuCS"];
+    hNodeB -> OsmoMGW [label="RTP",dir=both];
+}
+----
+
+=== Software Components
+
+OsmoMGW contains a variety of different software components, which we’ll
+quickly describe in this section.
+
+==== MGCP Implementation
+
+OsmoMGW brings its own MGCP implementation through which OsmoMGW is
+controlled.
+
+The commands implemented are CRCX, MDCX, DLCX and RSIP. The command AUEP is
+implemented as a stub and will simply respond with OK.
+
+==== RTP implementation
+
+Support for IuUP which is used in 3G cells is quite lacking at the moment.
+3G<->3G and 2G<->2G calls should work, but 3G<->2G does not.
+
+==== Audio transcoder
+
+Transcoding is currently not supported in OsmoMGW.
+
+=== Limitations
+
+Osmux is not yet supported in OsmoMGW.
+
+At the moment (July 2018), OsmoMGW only implements RTP proxy / RTP bridge
+type endpoints, to each of which two RTP connections can be established.
+We are planning to add endpoint types for:
+
+- classic E1/T1 timeslots (64kBps alaw/ulaw)
+- classic E1/T1 16k sub-slots with TRAU frames for classic BTS support
+- announcement/playout end-points
+- conference endpoints
+
+=== Additional resources
+
+You can find the OsmoMGW issue tracker and wiki online at
+
+- https://osmocom.org/projects/osmomgw
+- https://osmocom.org/projects/osmomgw/wiki
+
+RFC 3435 for MGCP is located at
+
+- https://tools.ietf.org/html/rfc3435

doc/manuals/chapters/running.adoc

@@ -0,0 +1,25 @@
+== Running OsmoMGW
+
+The OsmoMGW executable (`osmo-mgw`) offers the following command-line
+arguments:
+
+=== SYNOPSIS
+
+*osmo-mgw* [-h|-V] [-D] [-c 'CONFIGFILE'] [-s]
+
+=== OPTIONS
+
+*-h, --help*::
+	Print a short help message about the supported options
+*-V, --version*::
+	Print the compile-time version number of the OsmoBTS program
+*-D, --daemonize*::
+	Fork the process as a daemon into background.
+*-c, --config-file 'CONFIGFILE'*::
+	Specify the file and path name of the configuration file to be
+	used. If none is specified, use `osmo-mgw.cfg` in the current
+	working directory.
+*-s, --disable-color*::
+	Disable colors for logging to stderr. This has mostly been
+	deprecated by VTY based logging configuration, see <<logging>>
+	for more information.

doc/manuals/osmomgw-usermanual-docinfo.xml

@@ -0,0 +1,47 @@
+<revhistory>
+  <revision>
+    <revnumber>1</revnumber>
+    <date>July 24th, 2018</date>
+    <authorinitials>DW</authorinitials>
+    <revremark>
+      Initial version
+    </revremark>
+  </revision>
+</revhistory>
+
+<authorgroup>
+  <author>
+    <firstname>Daniel</firstname>
+    <surname>Willmann</surname>
+    <email>dwillmann@sysmocom.de</email>
+    <authorinitials>DW</authorinitials>
+    <affiliation>
+      <shortaffil>sysmocom</shortaffil>
+      <orgname>sysmocom - s.f.m.c. GmbH</orgname>
+    </affiliation>
+  </author>
+</authorgroup>
+
+<copyright>
+  <year>2018</year>
+  <holder>sysmocom - s.f.m.c. GmbH</holder>
+</copyright>
+
+<legalnotice>
+  <para>
+	Permission is granted to copy, distribute and/or modify this
+	document under the terms of the GNU Free Documentation License,
+	Version 1.3 or any later version published by the Free Software
+	Foundation; with the Invariant Sections being just 'Foreword',
+	'Acknowledgements' and 'Preface', with no Front-Cover Texts,
+	and no Back-Cover Texts.  A copy of the license is included in
+	the section entitled "GNU Free Documentation License".
+  </para>
+  <para>
+	The Asciidoc source code of this manual can be found at
+	<ulink url="http://git.osmocom.org/osmo-gsm-manuals/">
+		http://git.osmocom.org/osmo-gsm-manuals/
+	</ulink>
+  </para>
+</legalnotice>
+

doc/manuals/osmomgw-usermanual.adoc

@@ -0,0 +1,33 @@
+:gfdl-enabled:
+:program-name: OsmoMGW
+
+OsmoMGW User Manual
+====================
+Daniel Willmann <dwillmann@sysmocom.de>
+
+
+include::./common/chapters/preface.adoc[]
+
+include::{srcdir}/chapters/overview.adoc[]
+
+include::{srcdir}/chapters/running.adoc[]
+
+include::./common/chapters/vty.adoc[]
+
+include::./common/chapters/logging.adoc[]
+
+include::{srcdir}/chapters/configuration.adoc[]
+
+include::{srcdir}/chapters/mgcp_extensions.adoc[]
+
+//include::{srcdir}/chapters/counters.adoc[]
+
+include::./common/chapters/port_numbers.adoc[]
+
+include::./common/chapters/bibliography.adoc[]
+
+include::./common/chapters/glossary.adoc[]
+
+include::./common/chapters/gfdl.adoc[]
+
+

doc/manuals/osmomgw-vty-reference.xml

@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ex:ts=2:sw=42sts=2:et
+  -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+-->
+<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML 5.0//EN"
+"http://docbook.org/xml/5.0/dtd/docbook.dtd" [
+<!ENTITY chapter-vty      SYSTEM      "./common/chapters/vty.xml" >
+<!ENTITY sections-vty     SYSTEM      "generated/docbook_vty.xml"  >
+]>
+
+<book>
+  <info>
+    <revhistory>
+        <revision>
+            <revnumber>v1</revnumber>
+            <date>12th December 2017</date>
+            <authorinitials>pm</authorinitials>
+            <revremark>Initial</revremark>
+        </revision>
+    </revhistory>
+
+    <title>OsmoMGW VTY Reference</title>
+
+    <copyright>
+      <year>2017</year>
+    </copyright>
+
+    <legalnotice>
+      <para>This work is copyright by <orgname>sysmocom - s.f.m.c. GmbH</orgname>. All rights reserved.
+      </para>
+    </legalnotice>
+  </info>
+
+  <!-- Main chapters-->
+  &chapter-vty;
+</book>
+

doc/manuals/vty/mgw_vty_additions.xml

@@ -0,0 +1,2 @@
+<vtydoc xmlns='urn:osmocom:xml:libosmocore:vty:doc:1.0'>
+</vtydoc>

include/Makefile.am

@@ -3,9 +3,6 @@ SUBDIRS = \
 	$(NULL)
 
 nobase_include_HEADERS = \
-	osmocom/legacy_mgcp/mgcp.h \
-	osmocom/legacy_mgcp/mgcp_internal.h \
-	osmocom/legacy_mgcp/osmux.h \
 	osmocom/mgcp_client/mgcp_client.h \
 	osmocom/mgcp_client/mgcp_client_fsm.h \
 	osmocom/mgcp_client/mgcp_common.h \

include/osmocom/Makefile.am

@@ -1,5 +1,4 @@
 SUBDIRS = \
-	legacy_mgcp \
 	mgcp_client \
 	mgcp \
 	$(NULL)

include/osmocom/legacy_mgcp/Makefile.am

@@ -1,4 +0,0 @@
-noinst_HEADERS = \
-	mgcp_transcode.h \
-	vty.h \
-	$(NULL)

include/osmocom/legacy_mgcp/mgcp.h

@@ -1,298 +0,0 @@
-/* A Media Gateway Control Protocol Media Gateway: RFC 3435 */
-
-/*
- * (C) 2009-2012 by Holger Hans Peter Freyther <zecke@selfish.org>
- * (C) 2009-2012 by On-Waves
- * All Rights Reserved
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as published by
- * the Free Software Foundation; either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-
-#ifndef OPENBSC_MGCP_H
-#define OPENBSC_MGCP_H
-
-#include <osmocom/core/msgb.h>
-#include <osmocom/core/write_queue.h>
-#include <osmocom/core/timer.h>
-#include <osmocom/core/logging.h>
-
-#include <arpa/inet.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-
-#define RTP_PORT_DEFAULT 4000
-#define RTP_PORT_NET_DEFAULT 16000
-
-/**
- * Calculate the RTP audio port for the given multiplex
- * and the direction. This allows a semi static endpoint
- * to port calculation removing the need for the BSC
- * and the MediaGateway to communicate.
- *
- * Port usage explained:
- *       base + (multiplex * 2) + 0 == local port to wait for network packets
- *       base + (multiplex * 2) + 1 == local port for rtcp
- *
- * The above port will receive packets from the BTS that need
- * to be patched and forwarded to the network.
- * The above port will receive packets from the network that
- * need to be patched and forwarded to the BTS.
- *
- * We assume to have a static BTS IP address so we can differentiate
- * network and BTS.
- *
- */
-static inline int rtp_calculate_port(int multiplex, int base)
-{
-	return base + (multiplex * 2);
-}
-
-
-/*
- * Handling of MGCP Endpoints and the MGCP Config
- */
-struct mgcp_endpoint;
-struct mgcp_config;
-struct mgcp_trunk_config;
-struct mgcp_rtp_end;
-
-#define MGCP_ENDP_CRCX 1
-#define MGCP_ENDP_DLCX 2
-#define MGCP_ENDP_MDCX 3
-
-/*
- * what to do with the msg?
- *	- continue as usual?
- *	- reject and send a failure code?
- *	- defer? do not send anything
- */
-#define MGCP_POLICY_CONT	4
-#define MGCP_POLICY_REJECT	5
-#define MGCP_POLICY_DEFER	6
-
-typedef int (*mgcp_realloc)(struct mgcp_trunk_config *cfg, int endpoint);
-typedef int (*mgcp_change)(struct mgcp_trunk_config *cfg, int endpoint, int state);
-typedef int (*mgcp_policy)(struct mgcp_trunk_config *cfg, int endpoint, int state, const char *transactio_id);
-typedef int (*mgcp_reset)(struct mgcp_trunk_config *cfg);
-typedef int (*mgcp_rqnt)(struct mgcp_endpoint *endp, char tone);
-
-/**
- * Return:
- *   <  0 in case no audio was processed
- *   >= 0 in case audio was processed. The remaining payload
- *   length will be returned.
- */
-typedef int (*mgcp_processing)(struct mgcp_endpoint *endp,
-			       struct mgcp_rtp_end *dst_end,
-			       char *data, int *len, int buf_size);
-typedef int (*mgcp_processing_setup)(struct mgcp_endpoint *endp,
-				     struct mgcp_rtp_end *dst_end,
-				     struct mgcp_rtp_end *src_end);
-
-typedef void (*mgcp_get_format)(struct mgcp_endpoint *endp,
-				int *payload_type,
-				const char**subtype_name,
-				const char**fmtp_extra);
-
-#define PORT_ALLOC_STATIC	0
-#define PORT_ALLOC_DYNAMIC	1
-
-/**
- * This holds information on how to allocate ports
- */
-struct mgcp_port_range {
-	int mode;
-
-	/* addr or NULL to fall-back to default */
-	char *bind_addr;
-
-	/* pre-allocated from a base? */
-	int base_port;
-
-	/* dynamically allocated */
-	int range_start;
-	int range_end;
-	int last_port;
-};
-
-#define MGCP_KEEPALIVE_ONCE (-1)
-
-struct mgcp_trunk_config {
-	struct llist_head entry;
-
-	struct mgcp_config *cfg;
-
-	int trunk_nr;
-	int trunk_type;
-
-	char *audio_fmtp_extra;
-	char *audio_name;
-	int audio_payload;
-	int audio_send_ptime;
-	int audio_send_name;
-	int audio_loop;
-
-	int no_audio_transcoding;
-
-	int omit_rtcp;
-	int keepalive_interval;
-
-	/* RTP patching */
-	int force_constant_ssrc; /* 0: don't, 1: once */
-	int force_aligned_timing;
-
-	/* spec handling */
-	int force_realloc;
-
-	/* timer */
-	struct osmo_timer_list keepalive_timer;
-
-	unsigned int number_endpoints;
-	struct mgcp_endpoint *endpoints;
-};
-
-enum mgcp_role {
-	MGCP_BSC = 0,
-	MGCP_BSC_NAT,
-};
-
-enum mgcp_connection_mode {
-	MGCP_CONN_NONE = 0,
-	MGCP_CONN_RECV_ONLY = 1,
-	MGCP_CONN_SEND_ONLY = 2,
-	MGCP_CONN_RECV_SEND = MGCP_CONN_RECV_ONLY | MGCP_CONN_SEND_ONLY,
-	MGCP_CONN_LOOPBACK  = 4 | MGCP_CONN_RECV_SEND,
-};
-
-struct mgcp_config {
-	int source_port;
-	char *local_ip;
-	char *source_addr;
-	char *bts_ip;
-	char *call_agent_addr;
-
-	struct in_addr bts_in;
-
-	/* transcoder handling */
-	char *transcoder_ip;
-	struct in_addr transcoder_in;
-	int transcoder_remote_base;
-
-	/* RTP processing */
-	mgcp_processing rtp_processing_cb;
-	mgcp_processing_setup setup_rtp_processing_cb;
-
-	mgcp_get_format get_net_downlink_format_cb;
-
-	struct osmo_wqueue gw_fd;
-
-	struct mgcp_port_range bts_ports;
-	struct mgcp_port_range net_ports;
-	struct mgcp_port_range transcoder_ports;
-	int endp_dscp;
-
-	int bts_force_ptime;
-
-	mgcp_change change_cb;
-	mgcp_policy policy_cb;
-	mgcp_reset reset_cb;
-	mgcp_realloc realloc_cb;
-	mgcp_rqnt rqnt_cb;
-	void *data;
-
-	uint32_t last_call_id;
-
-	/* trunk handling */
-	struct mgcp_trunk_config trunk;
-	struct llist_head trunks;
-
-	/* only used for start with a static configuration */
-	int last_net_port;
-	int last_bts_port;
-
-	enum mgcp_role role;
-
-	/* osmux translator: 0 means disabled, 1 means enabled */
-	int osmux;
-	/* addr to bind the server to */
-	char *osmux_addr;
-	/* The BSC-NAT may ask for enabling osmux on demand. This tells us if
-	 * the osmux socket is already initialized.
-	 */
-	int osmux_init;
-	/* osmux batch factor: from 1 to 4 maximum */
-	int osmux_batch;
-	/* osmux batch size (in bytes) */
-	int osmux_batch_size;
-	/* osmux port */
-	uint16_t osmux_port;
-	/* Pad circuit with dummy messages until we see the first voice
-	 * message.
-	 */
-	uint16_t osmux_dummy;
-
-	/* Use a jitterbuffer on the bts-side receiver */
-	bool bts_use_jibuf;
-	/* Minimum and maximum buffer size for the jitter buffer, in ms */
-	uint32_t bts_jitter_delay_min;
-	uint32_t bts_jitter_delay_max;
-};
-
-/* config management */
-struct mgcp_config *mgcp_config_alloc(void);
-int mgcp_parse_config(const char *config_file, struct mgcp_config *cfg,
-		      enum mgcp_role role);
-int mgcp_vty_init(void);
-int mgcp_endpoints_allocate(struct mgcp_trunk_config *cfg);
-void mgcp_release_endp(struct mgcp_endpoint *endp);
-void mgcp_initialize_endp(struct mgcp_endpoint *endp);
-int mgcp_reset_transcoder(struct mgcp_config *cfg);
-void mgcp_format_stats(struct mgcp_endpoint *endp, char *stats, size_t size);
-int mgcp_parse_stats(struct msgb *msg, uint32_t *ps, uint32_t *os, uint32_t *pr, uint32_t *_or, int *loss, uint32_t *jitter);
-
-void mgcp_trunk_set_keepalive(struct mgcp_trunk_config *tcfg, int interval);
-
-/*
- * format helper functions
- */
-struct msgb *mgcp_handle_message(struct mgcp_config *cfg, struct msgb *msg);
-
-/* adc helper */
-static inline int mgcp_timeslot_to_endpoint(int multiplex, int timeslot)
-{
-	if (timeslot == 0) {
-		LOGP(DLMGCP, LOGL_ERROR, "Timeslot should not be 0\n");
-		timeslot = 255;
-	}
-
-	return timeslot + (32 * multiplex);
-}
-
-static inline void mgcp_endpoint_to_timeslot(int endpoint, int *multiplex, int *timeslot)
-{
-	*multiplex = endpoint / 32;
-	*timeslot = endpoint % 32;
-}
-
-int mgcp_send_reset_ep(struct mgcp_endpoint *endp, int endpoint);
-int mgcp_send_reset_all(struct mgcp_config *cfg);
-
-
-int mgcp_create_bind(const char *source_addr, struct osmo_fd *fd, int port);
-int mgcp_send(struct mgcp_endpoint *endp, int dest, int is_rtp, struct sockaddr_in *addr, char *buf, int rc);
-int mgcp_udp_send(int fd, struct in_addr *addr, int port, char *buf, int len);
-
-#endif

include/osmocom/legacy_mgcp/mgcp_internal.h

@@ -1,351 +0,0 @@
-/* MGCP Private Data */
-
-/*
- * (C) 2009-2012 by Holger Hans Peter Freyther <zecke@selfish.org>
- * (C) 2009-2012 by On-Waves
- * All Rights Reserved
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as published by
- * the Free Software Foundation; either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-
-#pragma once
-
-#include <string.h>
-
-#include <osmocom/core/select.h>
-#include <osmocom/netif/jibuf.h>
-
-#define CI_UNUSED 0
-
-enum mgcp_trunk_type {
-	MGCP_TRUNK_VIRTUAL,
-	MGCP_TRUNK_E1,
-};
-
-struct mgcp_rtp_stream_state {
-	uint32_t ssrc;
-	uint16_t last_seq;
-	uint32_t last_timestamp;
-	uint32_t err_ts_counter;
-	int32_t last_tsdelta;
-	uint32_t last_arrival_time;
-};
-
-struct mgcp_rtp_state {
-	int initialized;
-	int patch_ssrc;
-
-	uint32_t orig_ssrc;
-
-	int seq_offset;
-
-	int32_t  timestamp_offset;
-	uint32_t packet_duration;
-
-	struct mgcp_rtp_stream_state in_stream;
-	struct mgcp_rtp_stream_state out_stream;
-
-	/* jitter and packet loss calculation */
-	int stats_initialized;
-	uint16_t stats_base_seq;
-	uint16_t stats_max_seq;
-	uint32_t stats_ssrc;
-	uint32_t stats_jitter;
-	int32_t stats_transit;
-	int stats_cycles;
-	bool patched_first_rtp_payload; /* FIXME: drop this, see OS#2459 */
-};
-
-struct mgcp_rtp_codec {
-	uint32_t rate;
-	int channels;
-	uint32_t frame_duration_num;
-	uint32_t frame_duration_den;
-
-	int payload_type;
-	char *audio_name;
-	char *subtype_name;
-};
-
-struct mgcp_rtp_end {
-	/* statistics */
-	unsigned int packets;
-	unsigned int octets;
-	unsigned int dropped_packets;
-	struct in_addr addr;
-
-	/* in network byte order */
-	int rtp_port, rtcp_port;
-
-	/* audio codec information */
-	struct mgcp_rtp_codec codec;
-	struct mgcp_rtp_codec alt_codec; /* TODO/XXX: make it generic */
-
-	/* per endpoint data */
-	int  frames_per_packet;
-	uint32_t packet_duration_ms;
-	char *fmtp_extra;
-	int output_enabled;
-	int force_output_ptime;
-
-	/* RTP patching */
-	int force_constant_ssrc; /* -1: always, 0: don't, 1: once */
-	int force_aligned_timing;
-	void *rtp_process_data;
-
-	/*
-	 * Each end has a socket...
-	 */
-	struct osmo_fd rtp;
-	struct osmo_fd rtcp;
-
-	int local_port;
-	int local_alloc;
-};
-
-enum {
-	MGCP_TAP_BTS_IN,
-	MGCP_TAP_BTS_OUT,
-	MGCP_TAP_NET_IN,
-	MGCP_TAP_NET_OUT,
-
-	/* last element */
-	MGCP_TAP_COUNT
-};
-
-struct mgcp_rtp_tap {
-	int enabled;
-	struct sockaddr_in forward;
-};
-
-struct mgcp_lco {
-	char *string;
-	char *codec;
-	int pkt_period_min; /* time in ms */
-	int pkt_period_max; /* time in ms */
-};
-
-enum mgcp_type {
-	MGCP_RTP_DEFAULT	= 0,
-	MGCP_RTP_TRANSCODED,
-	MGCP_OSMUX_BSC,
-	MGCP_OSMUX_BSC_NAT,
-};
-
-#include <osmocom/legacy_mgcp/osmux.h>
-
-struct mgcp_endpoint {
-	int allocated;
-	uint32_t ci;
-	char *callid;
-	struct mgcp_lco local_options;
-	int conn_mode;
-	int orig_mode;
-
-	/* backpointer */
-	struct mgcp_config *cfg;
-	struct mgcp_trunk_config *tcfg;
-
-	/* port status for bts/net */
-	struct mgcp_rtp_end bts_end;
-	struct mgcp_rtp_end net_end;
-
-	/*
-	 * For transcoding we will send from the local_port
-	 * of trans_bts and it will arrive at trans_net from
-	 * where we will forward it to the network.
-	 */
-	struct mgcp_rtp_end trans_bts;
-	struct mgcp_rtp_end trans_net;
-	enum mgcp_type type;
-
-	/* sequence bits */
-	struct mgcp_rtp_state net_state;
-	struct mgcp_rtp_state bts_state;
-
-	/* fields for re-transmission */
-	char *last_trans;
-	char *last_response;
-
-	/* tap for the endpoint */
-	struct mgcp_rtp_tap taps[MGCP_TAP_COUNT];
-
-	struct {
-		/* Osmux state: disabled, activating, active */
-		enum osmux_state state;
-		/* Allocated Osmux circuit ID for this endpoint */
-		int allocated_cid;
-		/* Used Osmux circuit ID for this endpoint */
-		uint8_t cid;
-		/* handle to batch messages */
-		struct osmux_in_handle *in;
-		/* handle to unbatch messages */
-		struct osmux_out_handle out;
-		/* statistics */
-		struct {
-			uint32_t chunks;
-			uint32_t octets;
-		} stats;
-	} osmux;
-
-	/* Jitter buffer */
-	struct osmo_jibuf* bts_jb;
-	/* Use a jitterbuffer on the bts-side receiver */
-	bool bts_use_jibuf;
-	/* Minimum and maximum buffer size for the jitter buffer, in ms */
-	uint32_t bts_jitter_delay_min;
-	uint32_t bts_jitter_delay_max;
-};
-
-#define for_each_line(line, save)			\
-	for (line = strline_r(NULL, &save); line;\
-	     line = strline_r(NULL, &save))
-
-static inline char *strline_r(char *str, char **saveptr)
-{
-	char *result;
-
-	if (str)
-		*saveptr = str;
-
-	result = *saveptr;
-
-	if (*saveptr != NULL) {
-		*saveptr = strpbrk(*saveptr, "\r\n");
-
-		if (*saveptr != NULL) {
-			char *eos = *saveptr;
-
-			if ((*saveptr)[0] == '\r' && (*saveptr)[1] == '\n')
-				(*saveptr)++;
-			(*saveptr)++;
-			if ((*saveptr)[0] == '\0')
-				*saveptr = NULL;
-
-			*eos = '\0';
-		}
-	}
-
-	return result;
-}
-
-
-
-#define ENDPOINT_NUMBER(endp) abs((int)(endp - endp->tcfg->endpoints))
-
-/**
- * Internal structure while parsing a request
- */
-struct mgcp_parse_data {
-	struct mgcp_config *cfg;
-	struct mgcp_endpoint *endp;
-	char *trans;
-	char *save;
-	int found;
-};
-
-int mgcp_send_dummy(struct mgcp_endpoint *endp);
-int mgcp_bind_bts_rtp_port(struct mgcp_endpoint *endp, int rtp_port);
-int mgcp_bind_net_rtp_port(struct mgcp_endpoint *endp, int rtp_port);
-int mgcp_bind_trans_bts_rtp_port(struct mgcp_endpoint *enp, int rtp_port);
-int mgcp_bind_trans_net_rtp_port(struct mgcp_endpoint *enp, int rtp_port);
-int mgcp_free_rtp_port(struct mgcp_rtp_end *end);
-
-/* For transcoding we need to manage an in and an output that are connected */
-static inline int endp_back_channel(int endpoint)
-{
-	return endpoint + 60;
-}
-
-struct mgcp_trunk_config *mgcp_trunk_alloc(struct mgcp_config *cfg, int index);
-struct mgcp_trunk_config *mgcp_trunk_num(struct mgcp_config *cfg, int index);
-
-void mgcp_rtp_end_config(struct mgcp_endpoint *endp, int expect_ssrc_change,
-			 struct mgcp_rtp_end *rtp);
-uint32_t mgcp_rtp_packet_duration(struct mgcp_endpoint *endp,
-				  struct mgcp_rtp_end *rtp);
-
-void mgcp_state_calc_loss(struct mgcp_rtp_state *s, struct mgcp_rtp_end *,
-			uint32_t *expected, int *loss);
-uint32_t mgcp_state_calc_jitter(struct mgcp_rtp_state *);
-
-/* payload processing default functions */
-int mgcp_rtp_processing_default(struct mgcp_endpoint *endp, struct mgcp_rtp_end *dst_end,
-				char *data, int *len, int buf_size);
-
-int mgcp_setup_rtp_processing_default(struct mgcp_endpoint *endp,
-				      struct mgcp_rtp_end *dst_end,
-				      struct mgcp_rtp_end *src_end);
-
-void mgcp_get_net_downlink_format_default(struct mgcp_endpoint *endp,
-					  int *payload_type,
-					  const char**subtype_name,
-					  const char**fmtp_extra);
-
-/* internal RTP Annex A counting */
-void mgcp_rtp_annex_count(struct mgcp_endpoint *endp, struct mgcp_rtp_state *state,
-			const uint16_t seq, const int32_t transit,
-			const uint32_t ssrc);
-
-int mgcp_set_ip_tos(int fd, int tos);
-
-enum {
-	MGCP_DEST_NET = 0,
-	MGCP_DEST_BTS,
-};
-
-
-#define MGCP_DUMMY_LOAD 0x23
-
-
-/**
- * SDP related information
- */
-/* Assume audio frame length of 20ms */
-#define DEFAULT_RTP_AUDIO_FRAME_DUR_NUM 20
-#define DEFAULT_RTP_AUDIO_FRAME_DUR_DEN 1000
-#define DEFAULT_RTP_AUDIO_PACKET_DURATION_MS 20
-#define DEFAULT_RTP_AUDIO_DEFAULT_RATE  8000
-#define DEFAULT_RTP_AUDIO_DEFAULT_CHANNELS 1
-
-#define PTYPE_UNDEFINED (-1)
-int mgcp_parse_sdp_data(struct mgcp_endpoint *endp, struct mgcp_rtp_end *rtp, struct mgcp_parse_data *p);
-int mgcp_set_audio_info(void *ctx, struct mgcp_rtp_codec *codec,
-			int payload_type, const char *audio_name);
-
-
-/**
- * Internal network related
- */
-static inline const char *mgcp_net_src_addr(struct mgcp_endpoint *endp)
-{
-	if (endp->cfg->net_ports.bind_addr)
-		return endp->cfg->net_ports.bind_addr;
-	return endp->cfg->source_addr;
-}
-
-static inline const char *mgcp_bts_src_addr(struct mgcp_endpoint *endp)
-{
-	if (endp->cfg->bts_ports.bind_addr)
-		return endp->cfg->bts_ports.bind_addr;
-	return endp->cfg->source_addr;
-}
-
-int mgcp_msg_terminate_nul(struct msgb *msg);
-
-/**
- * Internal jitter buffer related
- */
-void mgcp_dejitter_udp_send(struct msgb *msg, void *data);

include/osmocom/legacy_mgcp/mgcp_transcode.h

@@ -1,90 +0,0 @@
-/*
- * (C) 2014 by On-Waves
- * All Rights Reserved
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as published by
- * the Free Software Foundation; either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-#ifndef OPENBSC_MGCP_TRANSCODE_H
-#define OPENBSC_MGCP_TRANSCODE_H
-
-#include "bscconfig.h"
-
-#include <gsm.h>
-#ifdef HAVE_BCG729
-#include <bcg729/decoder.h>
-#include <bcg729/encoder.h>
-#endif
-
-enum audio_format {
-	AF_INVALID,
-	AF_S16,
-	AF_L16,
-	AF_GSM,
-	AF_G729,
-	AF_PCMA,
-	AF_PCMU
-};
-
-
-struct mgcp_process_rtp_state {
-	/* decoding */
-	enum audio_format src_fmt;
-	union {
-		gsm gsm_handle;
-#ifdef HAVE_BCG729
-		bcg729DecoderChannelContextStruct *g729_dec;
-#endif
-	} src;
-	size_t src_frame_size;
-	size_t src_samples_per_frame;
-
-	/* processing */
-
-	/* encoding */
-	enum audio_format dst_fmt;
-	union {
-		gsm gsm_handle;
-#ifdef HAVE_BCG729
-		bcg729EncoderChannelContextStruct *g729_enc;
-#endif
-	} dst;
-	size_t dst_frame_size;
-	size_t dst_samples_per_frame;
-	int dst_packet_duration;
-
-	int is_running;
-	uint16_t next_seq;
-	uint32_t next_time;
-	int16_t samples[10*160];
-	size_t sample_cnt;
-	size_t sample_offs;
-};
-
-
-int mgcp_transcoding_setup(struct mgcp_endpoint *endp,
-			   struct mgcp_rtp_end *dst_end,
-			   struct mgcp_rtp_end *src_end);
-
-void mgcp_transcoding_net_downlink_format(struct mgcp_endpoint *endp,
-					  int *payload_type,
-					  const char**audio_name,
-					  const char**fmtp_extra);
-
-int mgcp_transcoding_process_rtp(struct mgcp_endpoint *endp,
-				 struct mgcp_rtp_end *dst_end,
-				 char *data, int *len, int buf_size);
-
-int mgcp_transcoding_get_frame_size(void *state_, int nsamples, int dst);
-#endif /* OPENBSC_MGCP_TRANSCODE_H */

include/osmocom/legacy_mgcp/osmux.h

@@ -1,41 +0,0 @@
-#ifndef _OPENBSC_OSMUX_H_
-#define _OPENBSC_OSMUX_H_
-
-#include <osmocom/netif/osmux.h>
-
-#define OSMUX_PORT	1984
-
-enum {
-	OSMUX_ROLE_BSC = 0,
-	OSMUX_ROLE_BSC_NAT,
-};
-
-int osmux_init(int role, struct mgcp_config *cfg);
-int osmux_enable_endpoint(struct mgcp_endpoint *endp, struct in_addr *addr, uint16_t port);
-void osmux_disable_endpoint(struct mgcp_endpoint *endp);
-void osmux_allocate_cid(struct mgcp_endpoint *endp);
-void osmux_release_cid(struct mgcp_endpoint *endp);
-
-int osmux_xfrm_to_rtp(struct mgcp_endpoint *endp, int type, char *buf, int rc);
-int osmux_xfrm_to_osmux(int type, char *buf, int rc, struct mgcp_endpoint *endp);
-
-int osmux_send_dummy(struct mgcp_endpoint *endp);
-
-int osmux_get_cid(void);
-void osmux_put_cid(uint8_t osmux_cid);
-int osmux_used_cid(void);
-
-enum osmux_state {
-	OSMUX_STATE_DISABLED = 0,
-	OSMUX_STATE_NEGOTIATING,
-	OSMUX_STATE_ACTIVATING,
-	OSMUX_STATE_ENABLED,
-};
-
-enum osmux_usage {
-	OSMUX_USAGE_OFF = 0,
-	OSMUX_USAGE_ON = 1,
-	OSMUX_USAGE_ONLY = 2,
-};
-
-#endif

include/osmocom/legacy_mgcp/vty.h

@@ -1,8 +0,0 @@
-#pragma once
-
-#include <osmocom/vty/command.h>
-
-enum mgcp_vty_node {
-	MGCP_NODE = _LAST_OSMOVTY_NODE + 1,
-	TRUNK_NODE,
-};

include/osmocom/mgcp/mgcp.h

@@ -118,6 +118,55 @@ struct mgcp_port_range {
 #define MGCP_KEEPALIVE_ONCE (-1)
 #define MGCP_KEEPALIVE_NEVER 0
 
+/* Global MCGP CRCX related rate counters */
+enum {
+	MGCP_CRCX_SUCCESS,
+	MGCP_CRCX_FAIL_BAD_ACTION,
+	MGCP_CRCX_FAIL_UNHANDLED_PARAM,
+	MGCP_CRCX_FAIL_MISSING_CALLID,
+	MGCP_CRCX_FAIL_INVALID_MODE,
+	MGCP_CRCX_FAIL_LIMIT_EXCEEDED,
+	MGCP_CRCX_FAIL_UNKNOWN_CALLID,
+	MGCP_CRCX_FAIL_ALLOC_CONN,
+	MGCP_CRCX_FAIL_NO_REMOTE_CONN_DESC,
+	MGCP_CRCX_FAIL_START_RTP,
+	MGCP_CRCX_FAIL_REJECTED_BY_POLICY,
+	MGCP_CRCX_FAIL_NO_OSMUX,
+	MGCP_CRCX_FAIL_INVALID_CONN_OPTIONS,
+	MGCP_CRCX_FAIL_CODEC_NEGOTIATION,
+	MGCP_CRCX_FAIL_BIND_PORT,
+};
+
+/* Global MCGP MDCX related rate counters */
+enum {
+	MGCP_MDCX_SUCCESS,
+	MGCP_MDCX_FAIL_WILDCARD,
+	MGCP_MDCX_FAIL_NO_CONN,
+	MGCP_MDCX_FAIL_INVALID_CALLID,
+	MGCP_MDCX_FAIL_INVALID_CONNID,
+	MGCP_MDCX_FAIL_UNHANDLED_PARAM,
+	MGCP_MDCX_FAIL_NO_CONNID,
+	MGCP_MDCX_FAIL_CONN_NOT_FOUND,
+	MGCP_MDCX_FAIL_INVALID_MODE,
+	MGCP_MDCX_FAIL_INVALID_CONN_OPTIONS,
+	MGCP_MDCX_FAIL_NO_REMOTE_CONN_DESC,
+	MGCP_MDCX_FAIL_START_RTP,
+	MGCP_MDCX_FAIL_REJECTED_BY_POLICY,
+	MGCP_MDCX_DEFERRED_BY_POLICY
+};
+
+/* Global MCGP DLCX related rate counters */
+enum {
+	MGCP_DLCX_SUCCESS,
+	MGCP_DLCX_FAIL_WILDCARD,
+	MGCP_DLCX_FAIL_NO_CONN,
+	MGCP_DLCX_FAIL_INVALID_CALLID,
+	MGCP_DLCX_FAIL_INVALID_CONNID,
+	MGCP_DLCX_FAIL_UNHANDLED_PARAM,
+	MGCP_DLCX_FAIL_REJECTED_BY_POLICY,
+	MGCP_DLCX_DEFERRED_BY_POLICY,
+};
+
 struct mgcp_trunk_config {
 	struct llist_head entry;
 
@@ -141,6 +190,8 @@ struct mgcp_trunk_config {
 	/* RTP patching */
 	int force_constant_ssrc; /* 0: don't, 1: once */
 	int force_aligned_timing;
+	bool rfc5993_hr_convert;
+	bool amr_oa_bwe_convert;
 
 	/* spec handling */
 	int force_realloc;
@@ -155,6 +206,15 @@ struct mgcp_trunk_config {
 	unsigned int number_endpoints;
 	int vty_number_endpoints;
 	struct mgcp_endpoint *endpoints;
+
+	/* Rate counter group which contains stats for processed CRCX commands. */
+	struct rate_ctr_group *mgcp_crcx_ctr_group;
+	/* Rate counter group which contains stats for processed MDCX commands. */
+	struct rate_ctr_group *mgcp_mdcx_ctr_group;
+	/* Rate counter group which contains stats for processed DLCX commands. */
+	struct rate_ctr_group *mgcp_dlcx_ctr_group;
+	/* Rate counter group which aggregates stats of individual RTP connections. */
+	struct rate_ctr_group *all_rtp_conn_stats;
 };
 
 enum mgcp_role {
@@ -216,6 +276,9 @@ struct mgcp_config {
 	uint16_t osmux_dummy;
 	/* domain name of the media gateway */
 	char domain[255+1];
+
+	/* time after which inactive connections (CIs) get closed */
+	int conn_timeout;
 };
 
 /* config management */

include/osmocom/mgcp/mgcp_codec.h

@@ -4,3 +4,4 @@ void mgcp_codec_summary(struct mgcp_conn_rtp *conn);
 void mgcp_codec_reset_all(struct mgcp_conn_rtp *conn);
 int mgcp_codec_add(struct mgcp_conn_rtp *conn, int payload_type, const char *audio_name);
 int mgcp_codec_decide(struct mgcp_conn_rtp *conn);
+int mgcp_codec_pt_translate(struct mgcp_conn_rtp *conn_src, struct mgcp_conn_rtp *conn_dst, int payload_type);

include/osmocom/mgcp/mgcp_common.h

@@ -49,6 +49,14 @@ enum mgcp_connection_mode {
 	MGCP_CONN_LOOPBACK  = 4 | MGCP_CONN_RECV_SEND,
 };
 
+#define MGCP_X_OSMO_IGN_HEADER "X-Osmo-IGN:"
+
+/* Values should be bitwise-OR-able */
+enum mgcp_x_osmo_ign {
+	MGCP_X_OSMO_IGN_NONE = 0,
+	MGCP_X_OSMO_IGN_CALLID = 1,
+};
+
 /* Ensure that the msg->l2h is NUL terminated. */
 static inline int mgcp_msg_terminate_nul(struct msgb *msg)
 {
@@ -71,9 +79,12 @@ static inline int mgcp_msg_terminate_nul(struct msgb *msg)
 /* Maximum length of the comment field */
 #define MGCP_COMMENT_MAXLEN 256
 
-/* String length of Connection Identifiers
- * (see also RFC3435 2.1.3.2 Names of Connections) */
-#define MGCP_CONN_ID_LENGTH 32+1
+/* Maximum allowed String length of Connection Identifiers as per spec
+ * (see also RFC3435 2.1.3.2 Names of Connections), plus one for '\0'. */
+#define MGCP_CONN_ID_MAXLEN 32+1
+
+/* Deprecated: old name of MGCP_CONN_ID_MAXLEN. */
+#define MGCP_CONN_ID_LENGTH MGCP_CONN_ID_MAXLEN
 
 /* String length of Endpoint Identifiers.
 /  (see also RFC3435 section 3.2.1.3) */

include/osmocom/mgcp/mgcp_conn.h

@@ -25,6 +25,7 @@
 
 #include <osmocom/mgcp/mgcp_internal.h>
 #include <osmocom/core/linuxlist.h>
+#include <osmocom/core/rate_ctr.h>
 #include <inttypes.h>
 
 /* RTP connection related counters */
@@ -35,7 +36,36 @@ enum {
         RTP_OCTETS_RX_CTR,
         RTP_PACKETS_TX_CTR,
         RTP_OCTETS_TX_CTR,
-        RTP_DROPPED_PACKETS_CTR
+        RTP_DROPPED_PACKETS_CTR,
+        RTP_NUM_CONNECTIONS,
+};
+
+/* RTP per-connection statistics. Instances of the corresponding rate counter group
+ * exist for the lifetime of an RTP connection.
+ * Must be kept in sync with all_rtp_conn_rate_ctr_desc below */
+static const struct rate_ctr_desc mgcp_conn_rate_ctr_desc[] = {
+	[IN_STREAM_ERR_TSTMP_CTR] = {"stream_err_tstmp:in", "Inbound rtp-stream timestamp errors."},
+	[OUT_STREAM_ERR_TSTMP_CTR] = {"stream_err_tstmp:out", "Outbound rtp-stream timestamp errors."},
+	[RTP_PACKETS_RX_CTR] = {"rtp:packets_rx", "Inbound rtp packets."},
+	[RTP_OCTETS_RX_CTR] = {"rtp:octets_rx", "Inbound rtp octets."},
+	[RTP_PACKETS_TX_CTR] = {"rtp:packets_tx", "Outbound rtp packets."},
+	[RTP_OCTETS_TX_CTR] = {"rtp:octets_tx", "Outbound rtp octets."},
+	[RTP_DROPPED_PACKETS_CTR] = {"rtp:dropped", "dropped rtp packets."}
+};
+
+/* Aggregated RTP connection stats. These are updated when an RTP connection is freed.
+ * Must be kept in sync with mgcp_conn_rate_ctr_desc above */
+static const struct rate_ctr_desc all_rtp_conn_rate_ctr_desc[] = {
+	[IN_STREAM_ERR_TSTMP_CTR] = {"all_rtp:err_tstmp_in", "Total inbound rtp-stream timestamp errors."},
+	[OUT_STREAM_ERR_TSTMP_CTR] = {"all_rtp:err_tstmp_out", "Total outbound rtp-stream timestamp errors."},
+	[RTP_PACKETS_RX_CTR] = {"all_rtp:packets_rx", "Total inbound rtp packets."},
+	[RTP_OCTETS_RX_CTR] = {"all_rtp:octets_rx", "Total inbound rtp octets."},
+	[RTP_PACKETS_TX_CTR] = {"all_rtp:packets_tx", "Total outbound rtp packets."},
+	[RTP_OCTETS_TX_CTR] = {"all_rtp:octets_tx", "Total outbound rtp octets."},
+	[RTP_DROPPED_PACKETS_CTR] = {"all_rtp:dropped", "Total dropped rtp packets."},
+
+	/* This last counter does not exist in per-connection stats, only here. */
+	[RTP_NUM_CONNECTIONS] = {"all_rtp:num_closed_conns", "Total number of rtp connections closed."}
 };
 
 struct mgcp_conn *mgcp_conn_alloc(void *ctx, struct mgcp_endpoint *endp,

include/osmocom/mgcp/mgcp_endp.h

@@ -69,7 +69,7 @@ struct mgcp_endpoint {
 	/*! Local connection options (see mgcp_internal.h) */
 	struct mgcp_lco local_options;
 
-	/*! List with connections active on this endpoint */
+	/*! List of struct mgcp_conn, of the connections active on this endpoint */
 	struct llist_head conns;
 
 	/*! Backpointer to the MGW configuration */
@@ -90,6 +90,9 @@ struct mgcp_endpoint {
 	/*! Memorize if this endpoint was choosen by the MGW (wildcarded, true)
 	 *   or if the user has choosen the particular endpoint explicitly. */
 	bool wildcarded_req;
+
+	/*! MGCP_X_OSMO_IGN_* flags from 'X-Osmo-IGN:' header */
+	uint32_t x_osmo_ign;
 };
 
 /*! Extract endpoint number for a given endpoint */

include/osmocom/mgcp/mgcp_internal.h

@@ -128,6 +128,8 @@ struct mgcp_rtp_end {
 	int force_constant_ssrc; /* -1: always, 0: don't, 1: once */
 	/* should we perform align_rtp_timestamp_offset() (1) or not (0) */
 	int force_aligned_timing;
+	bool rfc5993_hr_convert;
+	bool amr_oa_bwe_convert;
 
 	/* Each end has a separate socket for RTP and RTCP */
 	struct osmo_fd rtp;
@@ -226,11 +228,14 @@ struct mgcp_conn {
 	enum mgcp_connection_mode mode_orig;
 
 	/*! connection id to identify the connection */
-	char id[MGCP_CONN_ID_LENGTH];
+	char id[MGCP_CONN_ID_MAXLEN];
 
 	/*! human readable name (vty, logging) */
 	char name[256];
 
+	/*! activity tracker (for cleaning up inactive connections) */
+	struct osmo_timer_list watchdog;
+
 	/*! union with connection description */
 	union {
 		struct mgcp_conn_rtp rtp;
@@ -328,3 +333,4 @@ enum {
 #define PTYPE_UNDEFINED (-1)
 
 void mgcp_get_local_addr(char *addr, struct mgcp_conn_rtp *conn);
+void mgcp_conn_watchdog_kick(struct mgcp_conn *conn);

include/osmocom/mgcp/osmux.h

@@ -24,10 +24,10 @@ void osmux_put_cid(uint8_t osmux_cid);
 int osmux_used_cid(void);
 
 enum osmux_state {
-	OSMUX_STATE_DISABLED = 0,
-	OSMUX_STATE_NEGOTIATING,
-	OSMUX_STATE_ACTIVATING,
-	OSMUX_STATE_ENABLED,
+	OSMUX_STATE_DISABLED = 0, /* Osmux not being currently used by endp */
+	OSMUX_STATE_NEGOTIATING,  /* Osmux was locally requested in MGCP CRCX */
+	OSMUX_STATE_ACTIVATING,   /* Osmux was accepted in MGCP CRCX ACK. It can now be enabled by \ref osmux_enable_endpoint. */
+	OSMUX_STATE_ENABLED,	  /* Osmux was initialized by \ref osmux_enable_endpoint and can process frames */
 };
 
 enum osmux_usage {
@@ -35,4 +35,3 @@ enum osmux_usage {
 	OSMUX_USAGE_ON = 1,
 	OSMUX_USAGE_ONLY = 2,
 };
-

include/osmocom/mgcp_client/mgcp_client.h

@@ -5,11 +5,14 @@
 
 #include <osmocom/mgcp_client/mgcp_common.h>
 
+/* See also: RFC 3435, chapter 3.5 Transmission over UDP */
 #define MGCP_CLIENT_LOCAL_ADDR_DEFAULT "0.0.0.0"
-#define MGCP_CLIENT_LOCAL_PORT_DEFAULT 0
+#define MGCP_CLIENT_LOCAL_PORT_DEFAULT 2727
 #define MGCP_CLIENT_REMOTE_ADDR_DEFAULT "127.0.0.1"
 #define MGCP_CLIENT_REMOTE_PORT_DEFAULT 2427
 
+#define MGCP_CLIENT_MGW_STR "Configure MGCP connection to Media Gateway\n"
+
 struct msgb;
 struct vty;
 struct mgcp_client;
@@ -19,9 +22,10 @@ struct mgcp_client_conf {
 	int local_port;
 	const char *remote_addr;
 	int remote_port;
-	uint16_t first_endpoint;
-	uint16_t last_endpoint;
-	uint16_t bts_base;
+
+	/* By default, we are always addressing the MGW with e.g. 'rtpbridge/123@mgw'.
+	 * If this is nonempty, the contained name will be used instead of 'mgw'. */
+	char endpoint_domain_name[MGCP_ENDPOINT_MAXLEN];
 };
 
 typedef unsigned int mgcp_trans_id_t;
@@ -57,7 +61,7 @@ struct mgcp_response_head {
 	int response_code;
 	mgcp_trans_id_t trans_id;
 	char comment[MGCP_COMMENT_MAXLEN];
-	char conn_id[MGCP_CONN_ID_LENGTH];
+	char conn_id[MGCP_CONN_ID_MAXLEN];
 	char endpoint[MGCP_ENDPOINT_MAXLEN];
 };
 
@@ -87,6 +91,7 @@ enum mgcp_verb {
 #define MGCP_MSG_PRESENCE_AUDIO_IP	0x0008
 #define MGCP_MSG_PRESENCE_AUDIO_PORT	0x0010
 #define MGCP_MSG_PRESENCE_CONN_MODE	0x0020
+#define MGCP_MSG_PRESENCE_X_OSMO_IGN	0x8000
 
 struct mgcp_msg {
 	enum mgcp_verb verb;
@@ -103,6 +108,7 @@ struct mgcp_msg {
 	unsigned int codecs_len;
 	struct ptmap ptmap[MGCP_MAX_CODECS];
 	unsigned int ptmap_len;
+	uint32_t x_osmo_ign;
 };
 
 void mgcp_client_conf_init(struct mgcp_client_conf *conf);
@@ -118,8 +124,8 @@ const char *mgcp_client_remote_addr_str(struct mgcp_client *mgcp);
 uint16_t mgcp_client_remote_port(struct mgcp_client *mgcp);
 uint32_t mgcp_client_remote_addr_n(struct mgcp_client *mgcp);
 
-int mgcp_client_next_endpoint(struct mgcp_client *client);
-void mgcp_client_release_endpoint(uint16_t id, struct mgcp_client *client);
+const char *mgcp_client_endpoint_domain(const struct mgcp_client *mgcp);
+const char *mgcp_client_rtpbridge_wildcard(const struct mgcp_client *mgcp);
 
 /* Invoked when an MGCP response is received or sending failed.  When the
  * response is passed as NULL, this indicates failure during transmission. */
@@ -132,20 +138,6 @@ int mgcp_client_cancel(struct mgcp_client *mgcp, mgcp_trans_id_t trans_id);
 
 enum mgcp_connection_mode;
 
-struct msgb *mgcp_msg_crcx(struct mgcp_client *mgcp,
-			   uint16_t rtp_endpoint, unsigned int call_id,
-			   enum mgcp_connection_mode mode)
-OSMO_DEPRECATED("Use mgcp_msg_gen() instead");
-
-struct msgb *mgcp_msg_mdcx(struct mgcp_client *mgcp,
-			   uint16_t rtp_endpoint, const char *rtp_conn_addr,
-			   uint16_t rtp_port, enum mgcp_connection_mode mode)
-OSMO_DEPRECATED("Use mgcp_msg_gen() instead");
-
-struct msgb *mgcp_msg_dlcx(struct mgcp_client *mgcp, uint16_t rtp_endpoint,
-			   unsigned int call_id)
-OSMO_DEPRECATED("Use mgcp_msg_gen() instead");
-
 struct msgb *mgcp_msg_gen(struct mgcp_client *mgcp, struct mgcp_msg *mgcp_msg);
 mgcp_trans_id_t mgcp_msg_trans_id(struct msgb *msg);
 

include/osmocom/mgcp_client/mgcp_client_fsm.h

@@ -34,6 +34,19 @@ struct mgcp_conn_peer {
 
 	/*! Number of codecs in RTP codec list (optional) */
 	unsigned int codecs_len;
+
+	/*! RTP payload type map (optional, only needed when payload types are
+	 * used that differ from what IANA/3GPP defines) */
+	struct ptmap ptmap[MGCP_MAX_CODECS];
+
+	/*! RTP payload type map length (optional, only needed when payload
+	 * types are used that differ from what IANA/3GPP defines) */
+	unsigned int ptmap_len;
+
+	/*! If nonzero, send 'X-Osmo-IGN:' header. This is useful e.g. for SCCPlite MSCs where the MSC is
+	 * known to issue incoherent or unknown CallIDs / to issue CRCX commands with a different domain
+	 * name than the BSC. An OsmoMGW will then ignore these and not fail on mismatches. */
+	uint32_t x_osmo_ign;
 };
 
 struct osmo_fsm_inst *mgcp_conn_create(struct mgcp_client *mgcp, struct osmo_fsm_inst *parent_fi, uint32_t parent_term_evt,

libosmo-legacy-mgcp.pc.in

@@ -1,10 +0,0 @@
-prefix=@prefix@
-exec_prefix=@exec_prefix@
-libdir=@libdir@
-includedir=@includedir@
-
-Name: Osmocom legacy Media Gateway Control Protocol library
-Description: C Utility Library
-Version: @VERSION@
-Libs: -L${libdir} -losmo-legacy-mgcp
-Cflags: -I${includedir}/

osmoappdesc.py

@@ -17,11 +17,9 @@
 
 app_configs = {
     "osmo-mgw": ["doc/examples/osmo-mgw/osmo-mgw.cfg"],
-    "osmo-bsc_mgcp": ["doc/examples/osmo-bsc_mgcp/mgcp.cfg"],
 }
 
 apps = [(4243, "src/osmo-mgw/osmo-mgw", "OsmoMGW", "osmo-mgw"),
-        (4243, "src/osmo-bsc_mgcp/osmo-bsc_mgcp", "OpenBSC MGCP", "osmo-bsc_mgcp"),
         ]
 
 vty_command = ["./src/osmo-mgw/osmo-mgw", "-c",

src/Makefile.am

@@ -21,13 +21,11 @@ AM_LDFLAGS = \
 
 # Libraries
 SUBDIRS = \
-	libosmo-legacy-mgcp \
 	libosmo-mgcp-client \
 	libosmo-mgcp \
 	$(NULL)
 
 # Programs
 SUBDIRS += \
-	osmo-bsc_mgcp \
 	osmo-mgw \
 	$(NULL)

src/libosmo-legacy-mgcp/Makefile.am

@@ -1,51 +0,0 @@
-AM_CPPFLAGS = \
-	$(all_includes) \
-	-I$(top_srcdir)/include \
-	-I$(top_builddir) \
-	$(NULL)
-
-AM_CFLAGS = \
-	-Wall \
-	$(LIBOSMOCORE_CFLAGS) \
-	$(LIBOSMOVTY_CFLAGS) \
-	$(LIBOSMONETIF_CFLAGS) \
-	$(COVERAGE_CFLAGS) \
-	$(LIBBCG729_CFLAGS) \
-	$(NULL)
-
-AM_LDFLAGS = \
-	$(LIBOSMOCORE_LIBS) \
-	$(LIBOSMOVTY_LIBS) \
-	$(LIBOSMONETIF_LIBS) \
-	$(COVERAGE_LDFLAGS) \
-	$(LIBBCG729_LIBS) \
-	$(LIBRARY_GSM) \
-	$(NULL)
-
-# This is not at all related to the release version, but a range of supported
-# API versions. Read TODO_RELEASE in the source tree's root!
-LEGACY_MGCP_LIBVERSION=1:0:1
-
-lib_LTLIBRARIES = \
-	libosmo-legacy-mgcp.la \
-	$(NULL)
-
-noinst_HEADERS = \
-	g711common.h \
-	$(NULL)
-
-libosmo_legacy_mgcp_la_SOURCES = \
-	mgcp_common.c \
-	mgcp_protocol.c \
-	mgcp_network.c \
-	mgcp_vty.c \
-	mgcp_osmux.c \
-	mgcp_sdp.c \
-	$(NULL)
-if BUILD_MGCP_TRANSCODING
-libosmo_legacy_mgcp_la_SOURCES += \
-	mgcp_transcode.c \
-	$(NULL)
-endif
-
-libosmo_legacy_mgcp_la_LDFLAGS = $(AM_LDFLAGS) -version-info $(LEGACY_MGCP_LIBVERSION)

src/libosmo-legacy-mgcp/g711common.h

@@ -1,187 +0,0 @@
-/*
- *  PCM - A-Law conversion
- *  Copyright (c) 2000 by Abramo Bagnara <abramo@alsa-project.org>
- *
- *  Wrapper for linphone Codec class by Simon Morlat <simon.morlat@linphone.org>
- *
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, write to the Free Software
- *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-
-static inline int val_seg(int val)
-{
-	int r = 0;
-	val >>= 7; /*7 = 4 + 3*/
-	if (val & 0xf0) {
-		val >>= 4;
-		r += 4;
-	}
-	if (val & 0x0c) {
-		val >>= 2;
-		r += 2;
-	}
-	if (val & 0x02)
-		r += 1;
-	return r;
-}
-
-/*
- * s16_to_alaw() - Convert a 16-bit linear PCM value to 8-bit A-law
- *
- * s16_to_alaw() accepts an 16-bit integer and encodes it as A-law data.
- *
- *		Linear Input Code	Compressed Code
- *	------------------------	---------------
- *	0000000wxyza			000wxyz
- *	0000001wxyza			001wxyz
- *	000001wxyzab			010wxyz
- *	00001wxyzabc			011wxyz
- *	0001wxyzabcd			100wxyz
- *	001wxyzabcde			101wxyz
- *	01wxyzabcdef			110wxyz
- *	1wxyzabcdefg			111wxyz
- *
- * For further information see John C. Bellamy's Digital Telephony, 1982,
- * John Wiley & Sons, pps 98-111 and 472-476.
- * G711 is designed for 13 bits input signal, this function add extra shifting to take this into account.
- */
-
-static inline unsigned char s16_to_alaw(int pcm_val)
-{
-	int		mask;
-	int		seg;
-	unsigned char	aval;
-
-	if (pcm_val >= 0) {
-		mask = 0xD5;
-	} else {
-		mask = 0x55;
-		pcm_val = -pcm_val;
-		if (pcm_val > 0x7fff)
-			pcm_val = 0x7fff;
-	}
-
-	if (pcm_val < 256) /*256 = 32 << 3*/
-		aval = pcm_val >> 4; /*4 = 1 + 3*/
-	else {
-		/* Convert the scaled magnitude to segment number. */
-		seg = val_seg(pcm_val);
-		aval = (seg << 4) | ((pcm_val >> (seg + 3)) & 0x0f);
-	}
-	return aval ^ mask;
-}
-
-/*
- * alaw_to_s16() - Convert an A-law value to 16-bit linear PCM
- *
- */
-static inline int alaw_to_s16(unsigned char a_val)
-{
-	int		t;
-	int		seg;
-
-	a_val ^= 0x55;
-	t = a_val & 0x7f;
-	if (t < 16)
-		t = (t << 4) + 8;
-	else {
-		seg = (t >> 4) & 0x07;
-		t = ((t & 0x0f) << 4) + 0x108;
-		t <<= seg -1;
-	}
-	return ((a_val & 0x80) ? t : -t);
-}
-/*
- * s16_to_ulaw() - Convert a linear PCM value to u-law
- *
- * In order to simplify the encoding process, the original linear magnitude
- * is biased by adding 33 which shifts the encoding range from (0 - 8158) to
- * (33 - 8191). The result can be seen in the following encoding table:
- *
- *	Biased Linear Input Code	Compressed Code
- *	------------------------	---------------
- *	00000001wxyza			000wxyz
- *	0000001wxyzab			001wxyz
- *	000001wxyzabc			010wxyz
- *	00001wxyzabcd			011wxyz
- *	0001wxyzabcde			100wxyz
- *	001wxyzabcdef			101wxyz
- *	01wxyzabcdefg			110wxyz
- *	1wxyzabcdefgh			111wxyz
- *
- * Each biased linear code has a leading 1 which identifies the segment
- * number. The value of the segment number is equal to 7 minus the number
- * of leading 0's. The quantization interval is directly available as the
- * four bits wxyz.  * The trailing bits (a - h) are ignored.
- *
- * Ordinarily the complement of the resulting code word is used for
- * transmission, and so the code word is complemented before it is returned.
- *
- * For further information see John C. Bellamy's Digital Telephony, 1982,
- * John Wiley & Sons, pps 98-111 and 472-476.
- */
-
-static inline unsigned char s16_to_ulaw(int pcm_val)	/* 2's complement (16-bit range) */
-{
-	int mask;
-	int seg;
-	unsigned char uval;
-
-	if (pcm_val < 0) {
-		pcm_val = 0x84 - pcm_val;
-		mask = 0x7f;
-	} else {
-		pcm_val += 0x84;
-		mask = 0xff;
-	}
-	if (pcm_val > 0x7fff)
-		pcm_val = 0x7fff;
-
-	/* Convert the scaled magnitude to segment number. */
-	seg = val_seg(pcm_val);
-
-	/*
-	 * Combine the sign, segment, quantization bits;
-	 * and complement the code word.
-	 */
-	uval = (seg << 4) | ((pcm_val >> (seg + 3)) & 0x0f);
-	return uval ^ mask;
-}
-
-/*
- * ulaw_to_s16() - Convert a u-law value to 16-bit linear PCM
- *
- * First, a biased linear code is derived from the code word. An unbiased
- * output can then be obtained by subtracting 33 from the biased code.
- *
- * Note that this function expects to be passed the complement of the
- * original code word. This is in keeping with ISDN conventions.
- */
-static inline int ulaw_to_s16(unsigned char u_val)
-{
-	int t;
-
-	/* Complement to obtain normal u-law value. */
-	u_val = ~u_val;
-
-	/*
-	 * Extract and bias the quantization bits. Then
-	 * shift up by the segment number and subtract out the bias.
-	 */
-	t = ((u_val & 0x0f) << 3) + 0x84;
-	t <<= (u_val & 0x70) >> 4;
-
-	return ((u_val & 0x80) ? (0x84 - t) : (t - 0x84));
-}

src/libosmo-legacy-mgcp/mgcp_common.c

@@ -1,54 +0,0 @@
-/* Media Gateway Control Protocol Media Gateway: RFC 3435 */
-/* Implementations useful both for the MGCP GW as well as MGCP GW clients */
-
-/*
- * (C) 2016 by sysmocom s.m.f.c. GmbH <info@sysmocom.de>
- * All Rights Reserved
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as published by
- * the Free Software Foundation; either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-
-#include <errno.h>
-
-#include <osmocom/core/utils.h>
-#include <osmocom/legacy_mgcp/mgcp.h>
-
-const struct value_string mgcp_connection_mode_strs[] = {
-	{ MGCP_CONN_NONE, "none" },
-	{ MGCP_CONN_RECV_SEND, "sendrecv" },
-	{ MGCP_CONN_SEND_ONLY, "sendonly" },
-	{ MGCP_CONN_RECV_ONLY, "recvonly" },
-	{ MGCP_CONN_LOOPBACK, "loopback" },
-	{ 0, NULL }
-};
-
-/* Ensure that the msg->l2h is NUL terminated. */
-int mgcp_msg_terminate_nul(struct msgb *msg)
-{
-	unsigned char *tail = msg->l2h + msgb_l2len(msg); /* char after l2 data */
-	if (tail[-1] == '\0')
-		/* nothing to do */;
-	else if (msgb_tailroom(msg) > 0)
-		tail[0] = '\0';
-	else if (tail[-1] == '\r' || tail[-1] == '\n')
-		tail[-1] = '\0';
-	else {
-		LOGP(DLMGCP, LOGL_ERROR, "Cannot NUL terminate MGCP message: "
-		     "Length: %d, Buffer size: %d\n",
-		     msgb_l2len(msg), msg->data_len);
-		return -ENOTSUP;
-	}
-	return 0;
-}

src/libosmo-legacy-mgcp/mgcp_osmux.c

@@ -1,588 +0,0 @@
-/*
- * (C) 2012-2013 by Pablo Neira Ayuso <pablo@gnumonks.org>
- * (C) 2012-2013 by On Waves ehf <http://www.on-waves.com>
- * All rights not specifically granted under this license are reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Affero General Public License as published by the
- * Free Software Foundation; either version 3 of the License, or (at your
- * option) any later version.
- */
-
-#include <stdio.h> /* for printf */
-#include <string.h> /* for memcpy */
-#include <stdlib.h> /* for abs */
-#include <inttypes.h> /* for PRIu64 */
-#include <netinet/in.h>
-#include <osmocom/core/msgb.h>
-#include <osmocom/core/talloc.h>
-
-#include <osmocom/netif/osmux.h>
-#include <osmocom/netif/rtp.h>
-
-#include <osmocom/legacy_mgcp/mgcp.h>
-#include <osmocom/legacy_mgcp/mgcp_internal.h>
-#include <osmocom/legacy_mgcp/osmux.h>
-
-static struct osmo_fd osmux_fd;
-
-static LLIST_HEAD(osmux_handle_list);
-
-struct osmux_handle {
-	struct llist_head head;
-	struct osmux_in_handle *in;
-	struct in_addr rem_addr;
-	int rem_port;
-	int refcnt;
-};
-
-static void *osmux;
-
-static void osmux_deliver(struct msgb *batch_msg, void *data)
-{
-	struct osmux_handle *handle = data;
-	struct sockaddr_in out = {
-		.sin_family = AF_INET,
-		.sin_port = handle->rem_port,
-	};
-
-	memcpy(&out.sin_addr, &handle->rem_addr, sizeof(handle->rem_addr));
-	sendto(osmux_fd.fd, batch_msg->data, batch_msg->len, 0,
-		(struct sockaddr *)&out, sizeof(out));
-	msgb_free(batch_msg);
-}
-
-static struct osmux_handle *
-osmux_handle_find_get(struct in_addr *addr, int rem_port)
-{
-	struct osmux_handle *h;
-
-	/* Lookup for existing OSMUX handle for this destination address. */
-	llist_for_each_entry(h, &osmux_handle_list, head) {
-		if (memcmp(&h->rem_addr, addr, sizeof(struct in_addr)) == 0 &&
-		    h->rem_port == rem_port) {
-			LOGP(DLMGCP, LOGL_DEBUG, "using existing OSMUX handle "
-						"for addr=%s:%d\n",
-				inet_ntoa(*addr), ntohs(rem_port));
-			h->refcnt++;
-			return h;
-		}
-	}
-
-	return NULL;
-}
-
-static void osmux_handle_put(struct osmux_in_handle *in)
-{
-	struct osmux_handle *h;
-
-	/* Lookup for existing OSMUX handle for this destination address. */
-	llist_for_each_entry(h, &osmux_handle_list, head) {
-		if (h->in == in) {
-			if (--h->refcnt == 0) {
-				LOGP(DLMGCP, LOGL_INFO,
-				     "Releasing unused osmux handle for %s:%d\n",
-				     inet_ntoa(h->rem_addr),
-				     ntohs(h->rem_port));
-				LOGP(DLMGCP, LOGL_INFO, "Stats: "
-				     "input RTP msgs: %u bytes: %"PRIu64" "
-				     "output osmux msgs: %u bytes: %"PRIu64"\n",
-				     in->stats.input_rtp_msgs,
-				     in->stats.input_rtp_bytes,
-				     in->stats.output_osmux_msgs,
-				     in->stats.output_osmux_bytes);
-				llist_del(&h->head);
-				osmux_xfrm_input_fini(h->in);
-				talloc_free(h);
-			}
-			return;
-		}
-	}
-	LOGP(DLMGCP, LOGL_ERROR, "cannot find Osmux input handle %p\n", in);
-}
-
-static struct osmux_handle *
-osmux_handle_alloc(struct mgcp_config *cfg, struct in_addr *addr, int rem_port)
-{
-	struct osmux_handle *h;
-
-	h = talloc_zero(osmux, struct osmux_handle);
-	if (!h)
-		return NULL;
-	h->rem_addr = *addr;
-	h->rem_port = rem_port;
-	h->refcnt++;
-
-	h->in = talloc_zero(h, struct osmux_in_handle);
-	if (!h->in) {
-		talloc_free(h);
-		return NULL;
-	}
-
-	h->in->osmux_seq = 0; /* sequence number to start OSmux message from */
-	h->in->batch_factor = cfg->osmux_batch;
-	/* If batch size is zero, the library defaults to 1470 bytes. */
-	h->in->batch_size = cfg->osmux_batch_size;
-	h->in->deliver = osmux_deliver;
-	osmux_xfrm_input_init(h->in);
-	h->in->data = h;
-
-	llist_add(&h->head, &osmux_handle_list);
-
-	LOGP(DLMGCP, LOGL_DEBUG, "created new OSMUX handle for addr=%s:%d\n",
-		inet_ntoa(*addr), ntohs(rem_port));
-
-	return h;
-}
-
-static struct osmux_in_handle *
-osmux_handle_lookup(struct mgcp_config *cfg, struct in_addr *addr, int rem_port)
-{
-	struct osmux_handle *h;
-
-	h = osmux_handle_find_get(addr, rem_port);
-	if (h != NULL)
-		return h->in;
-
-	h = osmux_handle_alloc(cfg, addr, rem_port);
-	if (h == NULL)
-		return NULL;
-
-	return h->in;
-}
-
-int osmux_xfrm_to_osmux(int type, char *buf, int rc, struct mgcp_endpoint *endp)
-{
-	int ret;
-	struct msgb *msg;
-
-	msg = msgb_alloc(4096, "RTP");
-	if (!msg)
-		return 0;
-
-	memcpy(msg->data, buf, rc);
-	msgb_put(msg, rc);
-
-	while ((ret = osmux_xfrm_input(endp->osmux.in, msg, endp->osmux.cid)) > 0) {
-		/* batch full, build and deliver it */
-		osmux_xfrm_input_deliver(endp->osmux.in);
-	}
-	return 0;
-}
-
-static struct mgcp_endpoint *
-endpoint_lookup(struct mgcp_config *cfg, int cid,
-		struct in_addr *from_addr, int type)
-{
-	struct mgcp_endpoint *tmp = NULL;
-	int i;
-
-	/* Lookup for the endpoint that corresponds to this port */
-	for (i=0; i<cfg->trunk.number_endpoints; i++) {
-		struct in_addr *this;
-
-		tmp = &cfg->trunk.endpoints[i];
-
-		if (!tmp->allocated)
-			continue;
-
-		switch(type) {
-		case MGCP_DEST_NET:
-			this = &tmp->net_end.addr;
-			break;
-		case MGCP_DEST_BTS:
-			this = &tmp->bts_end.addr;
-			break;
-		default:
-			/* Should not ever happen */
-			LOGP(DLMGCP, LOGL_ERROR, "Bad type %d. Fix your code.\n", type);
-			return NULL;
-		}
-
-		if (tmp->osmux.cid == cid && this->s_addr == from_addr->s_addr)
-			return tmp;
-	}
-
-	LOGP(DLMGCP, LOGL_ERROR, "Cannot find endpoint with cid=%d\n", cid);
-
-	return NULL;
-}
-
-static void scheduled_tx_net_cb(struct msgb *msg, void *data)
-{
-	struct mgcp_endpoint *endp = data;
-	struct sockaddr_in addr = {
-		.sin_addr = endp->net_end.addr,
-		.sin_port = endp->net_end.rtp_port,
-	};
-
-	endp->bts_end.octets += msg->len;
-	endp->bts_end.packets++;
-
-	mgcp_send(endp, MGCP_DEST_NET, 1, &addr, (char *)msg->data, msg->len);
-	msgb_free(msg);
-}
-
-static void scheduled_tx_bts_cb(struct msgb *msg, void *data)
-{
-	struct mgcp_endpoint *endp = data;
-	struct sockaddr_in addr = {
-		.sin_addr = endp->bts_end.addr,
-		.sin_port = endp->bts_end.rtp_port,
-	};
-
-	endp->net_end.octets += msg->len;
-	endp->net_end.packets++;
-
-	mgcp_send(endp, MGCP_DEST_BTS, 1, &addr, (char *)msg->data, msg->len);
-	msgb_free(msg);
-}
-
-static struct msgb *osmux_recv(struct osmo_fd *ofd, struct sockaddr_in *addr)
-{
-	struct msgb *msg;
-	socklen_t slen = sizeof(*addr);
-	int ret;
-
-	msg = msgb_alloc(4096, "OSMUX");
-	if (!msg) {
-		LOGP(DLMGCP, LOGL_ERROR, "cannot allocate message\n");
-		return NULL;
-	}
-	ret = recvfrom(ofd->fd, msg->data, msg->data_len, 0,
-			(struct sockaddr *)addr, &slen);
-	if (ret <= 0) {
-		msgb_free(msg);
-		LOGP(DLMGCP, LOGL_ERROR, "cannot receive message\n");
-		return NULL;
-	}
-	msgb_put(msg, ret);
-
-	return msg;
-}
-
-#define osmux_chunk_length(msg, rem) (rem - msg->len);
-
-int osmux_read_from_bsc_nat_cb(struct osmo_fd *ofd, unsigned int what)
-{
-	struct msgb *msg;
-	struct osmux_hdr *osmuxh;
-	struct sockaddr_in addr;
-	struct mgcp_config *cfg = ofd->data;
-	uint32_t rem;
-
-	msg = osmux_recv(ofd, &addr);
-	if (!msg)
-		return -1;
-
-	/* not any further processing dummy messages */
-	if (msg->data[0] == MGCP_DUMMY_LOAD)
-		goto out;
-
-	rem = msg->len;
-	while((osmuxh = osmux_xfrm_output_pull(msg)) != NULL) {
-		struct mgcp_endpoint *endp;
-
-		/* Yes, we use MGCP_DEST_NET to locate the origin */
-		endp = endpoint_lookup(cfg, osmuxh->circuit_id,
-				       &addr.sin_addr, MGCP_DEST_NET);
-		if (!endp) {
-			LOGP(DLMGCP, LOGL_ERROR,
-			     "Cannot find an endpoint for circuit_id=%d\n",
-			     osmuxh->circuit_id);
-			goto out;
-		}
-		endp->osmux.stats.octets += osmux_chunk_length(msg, rem);
-		endp->osmux.stats.chunks++;
-		rem = msg->len;
-
-		osmux_xfrm_output_sched(&endp->osmux.out, osmuxh);
-	}
-out:
-	msgb_free(msg);
-	return 0;
-}
-
-/* This is called from the bsc-nat */
-static int osmux_handle_dummy(struct mgcp_config *cfg, struct sockaddr_in *addr,
-			      struct msgb *msg)
-{
-	struct mgcp_endpoint *endp;
-	uint8_t osmux_cid;
-
-	if (msg->len < 1 + sizeof(osmux_cid)) {
-		LOGP(DLMGCP, LOGL_ERROR,
-		     "Discarding truncated Osmux dummy load\n");
-		goto out;
-	}
-
-	LOGP(DLMGCP, LOGL_DEBUG, "Received Osmux dummy load from %s\n",
-	     inet_ntoa(addr->sin_addr));
-
-	if (!cfg->osmux) {
-		LOGP(DLMGCP, LOGL_ERROR,
-		     "bsc wants to use Osmux but bsc-nat did not request it\n");
-		goto out;
-	}
-
-	/* extract the osmux CID from the dummy message */
-	memcpy(&osmux_cid, &msg->data[1], sizeof(osmux_cid));
-
-	endp = endpoint_lookup(cfg, osmux_cid, &addr->sin_addr, MGCP_DEST_BTS);
-	if (!endp) {
-		LOGP(DLMGCP, LOGL_ERROR,
-		     "Cannot find endpoint for Osmux CID %d\n", osmux_cid);
-		goto out;
-	}
-
-	if (endp->osmux.state == OSMUX_STATE_ENABLED)
-		goto out;
-
-	if (osmux_enable_endpoint(endp, &addr->sin_addr, addr->sin_port) < 0 ) {
-		LOGP(DLMGCP, LOGL_ERROR,
-		     "Could not enable osmux in endpoint %d\n",
-		     ENDPOINT_NUMBER(endp));
-		goto out;
-	}
-
-	LOGP(DLMGCP, LOGL_INFO, "Enabling osmux in endpoint %d for %s:%u\n",
-	     ENDPOINT_NUMBER(endp), inet_ntoa(addr->sin_addr),
-	     ntohs(addr->sin_port));
-out:
-	msgb_free(msg);
-	return 0;
-}
-
-int osmux_read_from_bsc_cb(struct osmo_fd *ofd, unsigned int what)
-{
-	struct msgb *msg;
-	struct osmux_hdr *osmuxh;
-	struct sockaddr_in addr;
-	struct mgcp_config *cfg = ofd->data;
-	uint32_t rem;
-
-	msg = osmux_recv(ofd, &addr);
-	if (!msg)
-		return -1;
-
-	/* not any further processing dummy messages */
-	if (msg->data[0] == MGCP_DUMMY_LOAD)
-		return osmux_handle_dummy(cfg, &addr, msg);
-
-	rem = msg->len;
-	while((osmuxh = osmux_xfrm_output_pull(msg)) != NULL) {
-		struct mgcp_endpoint *endp;
-
-		/* Yes, we use MGCP_DEST_BTS to locate the origin */
-		endp = endpoint_lookup(cfg, osmuxh->circuit_id,
-				       &addr.sin_addr, MGCP_DEST_BTS);
-		if (!endp) {
-			LOGP(DLMGCP, LOGL_ERROR,
-			     "Cannot find an endpoint for circuit_id=%d\n",
-			     osmuxh->circuit_id);
-			goto out;
-		}
-		endp->osmux.stats.octets += osmux_chunk_length(msg, rem);
-		endp->osmux.stats.chunks++;
-		rem = msg->len;
-
-		osmux_xfrm_output_sched(&endp->osmux.out, osmuxh);
-	}
-out:
-	msgb_free(msg);
-	return 0;
-}
-
-int osmux_init(int role, struct mgcp_config *cfg)
-{
-	int ret;
-
-	switch(role) {
-	case OSMUX_ROLE_BSC:
-		osmux_fd.cb = osmux_read_from_bsc_nat_cb;
-		break;
-	case OSMUX_ROLE_BSC_NAT:
-		osmux_fd.cb = osmux_read_from_bsc_cb;
-		break;
-	default:
-		LOGP(DLMGCP, LOGL_ERROR, "wrong role for OSMUX\n");
-		return -1;
-	}
-	osmux_fd.data = cfg;
-
-	ret = mgcp_create_bind(cfg->osmux_addr, &osmux_fd, cfg->osmux_port);
-	if (ret < 0) {
-		LOGP(DLMGCP, LOGL_ERROR, "cannot bind OSMUX socket\n");
-		return ret;
-	}
-	mgcp_set_ip_tos(osmux_fd.fd, cfg->endp_dscp);
-	osmux_fd.when |= BSC_FD_READ;
-
-	ret = osmo_fd_register(&osmux_fd);
-	if (ret < 0) {
-		LOGP(DLMGCP, LOGL_ERROR, "cannot register OSMUX socket\n");
-		return ret;
-	}
-	cfg->osmux_init = 1;
-
-	return 0;
-}
-
-int osmux_enable_endpoint(struct mgcp_endpoint *endp, struct in_addr *addr, uint16_t port)
-{
-	/* If osmux is enabled, initialize the output handler. This handler is
-	 * used to reconstruct the RTP flow from osmux. The RTP SSRC is
-	 * allocated based on the circuit ID (endp->osmux.cid), which is unique
-	 * in the local scope to the BSC/BSC-NAT. We use it to divide the RTP
-	 * SSRC space (2^32) by the 256 possible circuit IDs, then randomly
-	 * select one value from that window. Thus, we have no chance to have
-	 * overlapping RTP SSRC traveling to the BTSes behind the BSC,
-	 * similarly, for flows traveling to the MSC.
-	 */
-	static const uint32_t rtp_ssrc_winlen = UINT32_MAX / 256;
-
-	if (endp->osmux.state == OSMUX_STATE_DISABLED) {
-		LOGP(DLMGCP, LOGL_ERROR, "Endpoint %u didn't request Osmux\n",
-		     ENDPOINT_NUMBER(endp));
-		return -1;
-	}
-
-	osmux_xfrm_output_init(&endp->osmux.out,
-			       (endp->osmux.cid * rtp_ssrc_winlen) +
-			       (random() % rtp_ssrc_winlen));
-
-	endp->osmux.in = osmux_handle_lookup(endp->cfg, addr, port);
-	if (!endp->osmux.in) {
-		LOGP(DLMGCP, LOGL_ERROR, "Cannot allocate input osmux handle\n");
-		return -1;
-	}
-	if (!osmux_xfrm_input_open_circuit(endp->osmux.in, endp->osmux.cid,
-					   endp->cfg->osmux_dummy)) {
-		LOGP(DLMGCP, LOGL_ERROR, "Cannot open osmux circuit %u\n",
-		     endp->osmux.cid);
-		return -1;
-	}
-
-	switch (endp->cfg->role) {
-		case MGCP_BSC_NAT:
-			endp->type = MGCP_OSMUX_BSC_NAT;
-			osmux_xfrm_output_set_tx_cb(&endp->osmux.out,
-							scheduled_tx_net_cb, endp);
-			break;
-		case MGCP_BSC:
-			endp->type = MGCP_OSMUX_BSC;
-			osmux_xfrm_output_set_tx_cb(&endp->osmux.out,
-							scheduled_tx_bts_cb, endp);
-			break;
-	}
-	endp->osmux.state = OSMUX_STATE_ENABLED;
-
-	return 0;
-}
-
-void osmux_disable_endpoint(struct mgcp_endpoint *endp)
-{
-	LOGP(DLMGCP, LOGL_INFO, "Releasing endpoint %u using Osmux CID %u\n",
-	     ENDPOINT_NUMBER(endp), endp->osmux.cid);
-
-	/* We are closing, we don't need pending RTP packets to be transmitted */
-	osmux_xfrm_output_set_tx_cb(&endp->osmux.out, NULL, NULL);
-	osmux_xfrm_output_flush(&endp->osmux.out);
-
-	osmux_xfrm_input_close_circuit(endp->osmux.in, endp->osmux.cid);
-	endp->osmux.state = OSMUX_STATE_DISABLED;
-	endp->osmux.cid = -1;
-	osmux_handle_put(endp->osmux.in);
-}
-
-void osmux_release_cid(struct mgcp_endpoint *endp)
-{
-	if (endp->osmux.allocated_cid >= 0)
-		osmux_put_cid(endp->osmux.allocated_cid);
-	endp->osmux.allocated_cid = -1;
-}
-
-void osmux_allocate_cid(struct mgcp_endpoint *endp)
-{
-	osmux_release_cid(endp);
-	endp->osmux.allocated_cid = osmux_get_cid();
-}
-
-/* We don't need to send the dummy load for osmux so often as another endpoint
- * may have already punched the hole in the firewall. This approach is simple
- * though.
- */
-int osmux_send_dummy(struct mgcp_endpoint *endp)
-{
-	char buf[1 + sizeof(uint8_t)];
-	struct in_addr addr_unset = {};
-
-	buf[0] = MGCP_DUMMY_LOAD;
-	memcpy(&buf[1], &endp->osmux.cid, sizeof(endp->osmux.cid));
-
-	/* Wait until we have the connection information from MDCX */
-	if (memcmp(&endp->net_end.addr, &addr_unset, sizeof(addr_unset)) == 0)
-		return 0;
-
-	if (endp->osmux.state == OSMUX_STATE_ACTIVATING) {
-		if (osmux_enable_endpoint(endp, &endp->net_end.addr,
-					  htons(endp->cfg->osmux_port)) < 0) {
-			LOGP(DLMGCP, LOGL_ERROR,
-			     "Could not activate osmux in endpoint %d\n",
-			     ENDPOINT_NUMBER(endp));
-		}
-		LOGP(DLMGCP, LOGL_ERROR,
-		     "Osmux CID %u for %s:%u is now enabled\n",
-		     endp->osmux.cid, inet_ntoa(endp->net_end.addr),
-		     endp->cfg->osmux_port);
-	}
-	LOGP(DLMGCP, LOGL_DEBUG,
-	     "sending OSMUX dummy load to %s CID %u\n",
-	     inet_ntoa(endp->net_end.addr), endp->osmux.cid);
-
-	return mgcp_udp_send(osmux_fd.fd, &endp->net_end.addr,
-			     htons(endp->cfg->osmux_port), buf, sizeof(buf));
-}
-
-/* bsc-nat allocates/releases the Osmux circuit ID */
-static uint8_t osmux_cid_bitmap[(OSMUX_CID_MAX + 1) / 8];
-
-int osmux_used_cid(void)
-{
-	int i, j, used = 0;
-
-	for (i = 0; i < sizeof(osmux_cid_bitmap); i++) {
-		for (j = 0; j < 8; j++) {
-			if (osmux_cid_bitmap[i] & (1 << j))
-				used += 1;
-		}
-	}
-
-	return used;
-}
-
-int osmux_get_cid(void)
-{
-	int i, j;
-
-	for (i = 0; i < sizeof(osmux_cid_bitmap); i++) {
-		for (j = 0; j < 8; j++) {
-			if (osmux_cid_bitmap[i] & (1 << j))
-				continue;
-
-			osmux_cid_bitmap[i] |= (1 << j);
-			LOGP(DLMGCP, LOGL_DEBUG,
-			     "Allocating Osmux CID %u from pool\n", (i * 8) + j);
-			return (i * 8) + j;
-		}
-	}
-
-	LOGP(DLMGCP, LOGL_ERROR, "All Osmux circuits are in use!\n");
-	return -1;
-}
-
-void osmux_put_cid(uint8_t osmux_cid)
-{
-	LOGP(DLMGCP, LOGL_DEBUG, "Osmux CID %u is back to the pool\n", osmux_cid);
-	osmux_cid_bitmap[osmux_cid / 8] &= ~(1 << (osmux_cid % 8));
-}

src/libosmo-legacy-mgcp/mgcp_sdp.c

@@ -1,305 +0,0 @@
-/*
- * Some SDP file parsing...
- *
- * (C) 2009-2015 by Holger Hans Peter Freyther <zecke@selfish.org>
- * (C) 2009-2014 by On-Waves
- * All Rights Reserved
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as published by
- * the Free Software Foundation; either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-
-#include <osmocom/legacy_mgcp/mgcp.h>
-#include <osmocom/legacy_mgcp/mgcp_internal.h>
-
-#include <errno.h>
-
-struct sdp_rtp_map {
-	/* the type */
-	int payload_type;
-	/* null, static or later dynamic codec name */
-	char *codec_name;
-	/* A pointer to the original line for later parsing */
-	char *map_line;
-
-	int rate;
-	int channels;
-};
-
-int mgcp_set_audio_info(void *ctx, struct mgcp_rtp_codec *codec,
-			int payload_type, const char *audio_name)
-{
-	int rate = codec->rate;
-	int channels = codec->channels;
-	char audio_codec[64];
-
-	talloc_free(codec->subtype_name);
-	codec->subtype_name = NULL;
-	talloc_free(codec->audio_name);
-	codec->audio_name = NULL;
-
-	if (payload_type != PTYPE_UNDEFINED)
-		codec->payload_type = payload_type;
-
-	if (!audio_name) {
-		switch (payload_type) {
-		case 0: audio_name = "PCMU/8000/1"; break;
-		case 3: audio_name = "GSM/8000/1"; break;
-		case 8: audio_name = "PCMA/8000/1"; break;
-		case 18: audio_name = "G729/8000/1"; break;
-		default:
-			 /* Payload type is unknown, don't change rate and
-			  * channels. */
-			 /* TODO: return value? */
-			 return 0;
-		}
-	}
-
-	if (sscanf(audio_name, "%63[^/]/%d/%d",
-		   audio_codec, &rate, &channels) < 1)
-		return -EINVAL;
-
-	codec->rate = rate;
-	codec->channels = channels;
-	codec->subtype_name = talloc_strdup(ctx, audio_codec);
-	codec->audio_name = talloc_strdup(ctx, audio_name);
-
-	if (!strcmp(audio_codec, "G729")) {
-		codec->frame_duration_num = 10;
-		codec->frame_duration_den = 1000;
-	} else {
-		codec->frame_duration_num = DEFAULT_RTP_AUDIO_FRAME_DUR_NUM;
-		codec->frame_duration_den = DEFAULT_RTP_AUDIO_FRAME_DUR_DEN;
-	}
-
-	if (payload_type < 0) {
-		payload_type = 96;
-		if (rate == 8000 && channels == 1) {
-			if (!strcmp(audio_codec, "GSM"))
-				payload_type = 3;
-			else if (!strcmp(audio_codec, "PCMA"))
-				payload_type = 8;
-			else if (!strcmp(audio_codec, "PCMU"))
-				payload_type = 0;
-			else if (!strcmp(audio_codec, "G729"))
-				payload_type = 18;
-		}
-
-		codec->payload_type = payload_type;
-	}
-
-	if (channels != 1)
-		LOGP(DLMGCP, LOGL_NOTICE,
-		     "Channels != 1 in SDP: '%s'\n", audio_name);
-
-	return 0;
-}
-
-void codecs_initialize(void *ctx, struct sdp_rtp_map *codecs, int used)
-{
-	int i;
-
-	for (i = 0; i < used; ++i) {
-		switch (codecs[i].payload_type) {
-		case 0:
-			codecs[i].codec_name = "PCMU";
-			codecs[i].rate = 8000;
-			codecs[i].channels = 1;
-			break;
-		case 3:
-			codecs[i].codec_name = "GSM";
-			codecs[i].rate = 8000;
-			codecs[i].channels = 1;
-			break;
-		case 8:
-			codecs[i].codec_name = "PCMA";
-			codecs[i].rate = 8000;
-			codecs[i].channels = 1;
-			break;
-		case 18:
-			codecs[i].codec_name = "G729";
-			codecs[i].rate = 8000;
-			codecs[i].channels = 1;
-			break;
-		}
-	}
-}
-
-void codecs_update(void *ctx, struct sdp_rtp_map *codecs, int used, int payload, char *audio_name)
-{
-	int i;
-
-	for (i = 0; i < used; ++i) {
-		char audio_codec[64];
-		int rate = -1;
-		int channels = -1;
-		if (codecs[i].payload_type != payload)
-			continue;
-		if (sscanf(audio_name, "%63[^/]/%d/%d",
-				audio_codec, &rate, &channels) < 1) {
-			LOGP(DLMGCP, LOGL_ERROR, "Failed to parse '%s'\n", audio_name);
-			continue;
-		}
-
-		codecs[i].map_line = talloc_strdup(ctx, audio_name);
-		codecs[i].codec_name = talloc_strdup(ctx, audio_codec);
-		codecs[i].rate = rate;
-		codecs[i].channels = channels;
-		return;
-	}
-
-	LOGP(DLMGCP, LOGL_ERROR, "Unconfigured PT(%d) with %s\n", payload, audio_name);
-}
-
-int is_codec_compatible(struct mgcp_endpoint *endp, struct sdp_rtp_map *codec)
-{
-	char *bts_codec;
-	char audio_codec[64];
-
-	if (!codec->codec_name)
-		return 0;
-
-	/*
-	 * GSM, GSM/8000 and GSM/8000/1 should all be compatible.. let's go
-	 * by name first.
-	 */
-	bts_codec = endp->tcfg->audio_name;
-	if (sscanf(bts_codec, "%63[^/]/%*d/%*d", audio_codec) < 1)
-		return 0;
-
-	return strcasecmp(audio_codec, codec->codec_name) == 0;
-}
-
-int mgcp_parse_sdp_data(struct mgcp_endpoint *endp, struct mgcp_rtp_end *rtp, struct mgcp_parse_data *p)
-{
-	struct sdp_rtp_map codecs[10];
-	int codecs_used = 0;
-	char *line;
-	int maxptime = -1;
-	int i;
-	int codecs_assigned = 0;
-	void *tmp_ctx = talloc_new(NULL);
-
-	memset(&codecs, 0, sizeof(codecs));
-
-	for_each_line(line, p->save) {
-		switch (line[0]) {
-		case 'o':
-		case 's':
-		case 't':
-		case 'v':
-			/* skip these SDP attributes */
-			break;
-		case 'a': {
-			int payload;
-			int ptime, ptime2 = 0;
-			char audio_name[64];
-
-
-			if (sscanf(line, "a=rtpmap:%d %63s",
-				   &payload, audio_name) == 2) {
-				codecs_update(tmp_ctx, codecs, codecs_used, payload, audio_name);
-			} else if (sscanf(line, "a=ptime:%d-%d",
-					  &ptime, &ptime2) >= 1) {
-				if (ptime2 > 0 && ptime2 != ptime)
-					rtp->packet_duration_ms = 0;
-				else
-					rtp->packet_duration_ms = ptime;
-			} else if (sscanf(line, "a=maxptime:%d", &ptime2) == 1) {
-				maxptime = ptime2;
-			}
-			break;
-		}
-		case 'm': {
-			int port, rc;
-
-			rc = sscanf(line, "m=audio %d RTP/AVP %d %d %d %d %d %d %d %d %d %d",
-					&port,
-					&codecs[0].payload_type,
-					&codecs[1].payload_type,
-					&codecs[2].payload_type,
-					&codecs[3].payload_type,
-					&codecs[4].payload_type,
-					&codecs[5].payload_type,
-					&codecs[6].payload_type,
-					&codecs[7].payload_type,
-					&codecs[8].payload_type,
-					&codecs[9].payload_type);
-			if (rc >= 2) {
-				rtp->rtp_port = htons(port);
-				rtp->rtcp_port = htons(port + 1);
-				codecs_used = rc - 1;
-				codecs_initialize(tmp_ctx, codecs, codecs_used);
-			}
-			break;
-		}
-		case 'c': {
-			char ipv4[16];
-
-			if (sscanf(line, "c=IN IP4 %15s", ipv4) == 1) {
-				inet_aton(ipv4, &rtp->addr);
-			}
-			break;
-		}
-		default:
-			if (p->endp)
-				LOGP(DLMGCP, LOGL_NOTICE,
-				     "Unhandled SDP option: '%c'/%d on 0x%x\n",
-				     line[0], line[0], ENDPOINT_NUMBER(p->endp));
-			else
-				LOGP(DLMGCP, LOGL_NOTICE,
-				     "Unhandled SDP option: '%c'/%d\n",
-				     line[0], line[0]);
-			break;
-		}
-	}
-
-	/* Now select the primary and alt_codec */
-	for (i = 0; i < codecs_used && codecs_assigned < 2; ++i) {
-		struct mgcp_rtp_codec *codec = codecs_assigned == 0 ?
-					&rtp->codec : &rtp->alt_codec;
-
-		if (endp->tcfg->no_audio_transcoding &&
-			!is_codec_compatible(endp, &codecs[i])) {
-			LOGP(DLMGCP, LOGL_NOTICE, "Skipping codec %s\n",
-				codecs[i].codec_name);
-			continue;
-		}
-
-		mgcp_set_audio_info(p->cfg, codec,
-					codecs[i].payload_type,
-					codecs[i].map_line);
-		codecs_assigned += 1;
-	}
-
-	if (codecs_assigned > 0) {
-		/* TODO/XXX: Store this per codec and derive it on use */
-		if (maxptime >= 0 && maxptime * rtp->codec.frame_duration_den >
-				rtp->codec.frame_duration_num * 1500) {
-			/* more than 1 frame */
-			rtp->packet_duration_ms = 0;
-		}
-
-		LOGP(DLMGCP, LOGL_NOTICE,
-		     "Got media info via SDP: port %d, payload %d (%s), "
-		     "duration %d, addr %s\n",
-		     ntohs(rtp->rtp_port), rtp->codec.payload_type,
-		     rtp->codec.subtype_name ? rtp->codec.subtype_name : "unknown",
-		     rtp->packet_duration_ms, inet_ntoa(rtp->addr));
-	}
-
-	talloc_free(tmp_ctx);
-	return codecs_assigned > 0;
-}
-

src/libosmo-legacy-mgcp/mgcp_transcode.c

@@ -1,611 +0,0 @@
-/*
- * (C) 2014 by On-Waves
- * All Rights Reserved
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as published by
- * the Free Software Foundation; either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-
-#include <stdlib.h>
-#include <string.h>
-#include <errno.h>
-
-
-#include "g711common.h"
-
-#include <osmocom/legacy_mgcp/mgcp.h>
-#include <osmocom/legacy_mgcp/mgcp_internal.h>
-#include <osmocom/legacy_mgcp/mgcp_transcode.h>
-
-#include <osmocom/core/talloc.h>
-#include <osmocom/netif/rtp.h>
-
-int mgcp_transcoding_get_frame_size(void *state_, int nsamples, int dst)
-{
-	struct mgcp_process_rtp_state *state = state_;
-	if (dst)
-		return (nsamples >= 0 ?
-			nsamples / state->dst_samples_per_frame :
-			1) * state->dst_frame_size;
-	else
-		return (nsamples >= 0 ?
-			nsamples / state->src_samples_per_frame :
-			1) * state->src_frame_size;
-}
-
-static enum audio_format get_audio_format(const struct mgcp_rtp_codec *codec)
-{
-	if (codec->subtype_name) {
-		if (!strcasecmp("GSM", codec->subtype_name))
-			return AF_GSM;
-		if (!strcasecmp("PCMA", codec->subtype_name))
-			return AF_PCMA;
-		if (!strcasecmp("PCMU", codec->subtype_name))
-			return AF_PCMU;
-#ifdef HAVE_BCG729
-		if (!strcasecmp("G729", codec->subtype_name))
-			return AF_G729;
-#endif
-		if (!strcasecmp("L16", codec->subtype_name))
-			return AF_L16;
-	}
-
-	switch (codec->payload_type) {
-	case 0 /* PCMU */:
-		return AF_PCMU;
-	case 3 /* GSM */:
-		return AF_GSM;
-	case 8 /* PCMA */:
-		return AF_PCMA;
-#ifdef HAVE_BCG729
-	case 18 /* G.729 */:
-		return AF_G729;
-#endif
-	case 11 /* L16 */:
-		return AF_L16;
-	default:
-		return AF_INVALID;
-	}
-}
-
-static void l16_encode(short *sample, unsigned char *buf, size_t n)
-{
-	for (; n > 0; --n, ++sample, buf += 2) {
-		buf[0] = sample[0] >> 8;
-		buf[1] = sample[0] & 0xff;
-	}
-}
-
-static void l16_decode(unsigned char *buf, short *sample, size_t n)
-{
-	for (; n > 0; --n, ++sample, buf += 2)
-		sample[0] = ((short)buf[0] << 8) | buf[1];
-}
-
-static void alaw_encode(short *sample, unsigned char *buf, size_t n)
-{
-	for (; n > 0; --n)
-		*(buf++) = s16_to_alaw(*(sample++));
-}
-
-static void alaw_decode(unsigned char *buf, short *sample, size_t n)
-{
-	for (; n > 0; --n)
-		*(sample++) = alaw_to_s16(*(buf++));
-}
-
-static void ulaw_encode(short *sample, unsigned char *buf, size_t n)
-{
-	for (; n > 0; --n)
-		*(buf++) = s16_to_ulaw(*(sample++));
-}
-
-static void ulaw_decode(unsigned char *buf, short *sample, size_t n)
-{
-	for (; n > 0; --n)
-		*(sample++) = ulaw_to_s16(*(buf++));
-}
-
-static int processing_state_destructor(struct mgcp_process_rtp_state *state)
-{
-	switch (state->src_fmt) {
-	case AF_GSM:
-		if (state->src.gsm_handle)
-			gsm_destroy(state->src.gsm_handle);
-		break;
-#ifdef HAVE_BCG729
-	case AF_G729:
-		if (state->src.g729_dec)
-			closeBcg729DecoderChannel(state->src.g729_dec);
-		break;
-#endif
-	default:
-		break;
-	}
-	switch (state->dst_fmt) {
-	case AF_GSM:
-		if (state->dst.gsm_handle)
-			gsm_destroy(state->dst.gsm_handle);
-		break;
-#ifdef HAVE_BCG729
-	case AF_G729:
-		if (state->dst.g729_enc)
-			closeBcg729EncoderChannel(state->dst.g729_enc);
-		break;
-#endif
-	default:
-		break;
-	}
-	return 0;
-}
-
-int mgcp_transcoding_setup(struct mgcp_endpoint *endp,
-			   struct mgcp_rtp_end *dst_end,
-			   struct mgcp_rtp_end *src_end)
-{
-	struct mgcp_process_rtp_state *state;
-	enum audio_format src_fmt, dst_fmt;
-	const struct mgcp_rtp_codec *dst_codec = &dst_end->codec;
-
-	/* cleanup first */
-	if (dst_end->rtp_process_data) {
-		talloc_free(dst_end->rtp_process_data);
-		dst_end->rtp_process_data = NULL;
-	}
-
-	if (!src_end)
-		return 0;
-
-	const struct mgcp_rtp_codec *src_codec = &src_end->codec;
-
-	if (endp->tcfg->no_audio_transcoding) {
-		LOGP(DLMGCP, LOGL_NOTICE,
-			"Transcoding disabled on endpoint 0x%x\n",
-			ENDPOINT_NUMBER(endp));
-		return 0;
-	}
-
-	src_fmt = get_audio_format(src_codec);
-	dst_fmt = get_audio_format(dst_codec);
-
-	LOGP(DLMGCP, LOGL_ERROR,
-	     "Checking transcoding: %s (%d) -> %s (%d)\n",
-	     src_codec->subtype_name, src_codec->payload_type,
-	     dst_codec->subtype_name, dst_codec->payload_type);
-
-	if (src_fmt == AF_INVALID || dst_fmt == AF_INVALID) {
-		if (!src_codec->subtype_name || !dst_codec->subtype_name)
-			/* Not enough info, do nothing */
-			return 0;
-
-		if (strcasecmp(src_codec->subtype_name, dst_codec->subtype_name) == 0)
-			/* Nothing to do */
-			return 0;
-
-		LOGP(DLMGCP, LOGL_ERROR,
-		     "Cannot transcode: %s codec not supported (%s -> %s).\n",
-		     src_fmt != AF_INVALID ? "destination" : "source",
-		     src_codec->audio_name, dst_codec->audio_name);
-		return -EINVAL;
-	}
-
-	if (src_codec->rate && dst_codec->rate && src_codec->rate != dst_codec->rate) {
-		LOGP(DLMGCP, LOGL_ERROR,
-		     "Cannot transcode: rate conversion (%d -> %d) not supported.\n",
-		     src_codec->rate, dst_codec->rate);
-		return -EINVAL;
-	}
-
-	state = talloc_zero(endp->tcfg->cfg, struct mgcp_process_rtp_state);
-	talloc_set_destructor(state, processing_state_destructor);
-	dst_end->rtp_process_data = state;
-
-	state->src_fmt = src_fmt;
-
-	switch (state->src_fmt) {
-	case AF_L16:
-	case AF_S16:
-		state->src_frame_size = 80 * sizeof(short);
-		state->src_samples_per_frame = 80;
-		break;
-	case AF_GSM:
-		state->src_frame_size = sizeof(gsm_frame);
-		state->src_samples_per_frame = 160;
-		state->src.gsm_handle = gsm_create();
-		if (!state->src.gsm_handle) {
-			LOGP(DLMGCP, LOGL_ERROR,
-			     "Failed to initialize GSM decoder.\n");
-			return -EINVAL;
-		}
-		break;
-#ifdef HAVE_BCG729
-	case AF_G729:
-		state->src_frame_size = 10;
-		state->src_samples_per_frame = 80;
-		state->src.g729_dec = initBcg729DecoderChannel();
-		if (!state->src.g729_dec) {
-			LOGP(DLMGCP, LOGL_ERROR,
-			     "Failed to initialize G.729 decoder.\n");
-			return -EINVAL;
-		}
-		break;
-#endif
-	case AF_PCMU:
-	case AF_PCMA:
-		state->src_frame_size = 80;
-		state->src_samples_per_frame = 80;
-		break;
-	default:
-		break;
-	}
-
-	state->dst_fmt = dst_fmt;
-
-	switch (state->dst_fmt) {
-	case AF_L16:
-	case AF_S16:
-		state->dst_frame_size = 80*sizeof(short);
-		state->dst_samples_per_frame = 80;
-		break;
-	case AF_GSM:
-		state->dst_frame_size = sizeof(gsm_frame);
-		state->dst_samples_per_frame = 160;
-		state->dst.gsm_handle = gsm_create();
-		if (!state->dst.gsm_handle) {
-			LOGP(DLMGCP, LOGL_ERROR,
-			     "Failed to initialize GSM encoder.\n");
-			return -EINVAL;
-		}
-		break;
-#ifdef HAVE_BCG729
-	case AF_G729:
-		state->dst_frame_size = 10;
-		state->dst_samples_per_frame = 80;
-		state->dst.g729_enc = initBcg729EncoderChannel();
-		if (!state->dst.g729_enc) {
-			LOGP(DLMGCP, LOGL_ERROR,
-			     "Failed to initialize G.729 decoder.\n");
-			return -EINVAL;
-		}
-		break;
-#endif
-	case AF_PCMU:
-	case AF_PCMA:
-		state->dst_frame_size = 80;
-		state->dst_samples_per_frame = 80;
-		break;
-	default:
-		break;
-	}
-
-	if (dst_end->force_output_ptime)
-		state->dst_packet_duration = mgcp_rtp_packet_duration(endp, dst_end);
-
-	LOGP(DLMGCP, LOGL_INFO,
-	     "Initialized RTP processing on: 0x%x "
-	     "conv: %d (%d, %d, %s) -> %d (%d, %d, %s)\n",
-	     ENDPOINT_NUMBER(endp),
-	     src_fmt, src_codec->payload_type, src_codec->rate, src_end->fmtp_extra,
-	     dst_fmt, dst_codec->payload_type, dst_codec->rate, dst_end->fmtp_extra);
-
-	return 0;
-}
-
-void mgcp_transcoding_net_downlink_format(struct mgcp_endpoint *endp,
-					  int *payload_type,
-					  const char**audio_name,
-					  const char**fmtp_extra)
-{
-	struct mgcp_process_rtp_state *state = endp->net_end.rtp_process_data;
-	struct mgcp_rtp_codec *net_codec = &endp->net_end.codec;
-	struct mgcp_rtp_codec *bts_codec = &endp->bts_end.codec;
-
-	if (!state || net_codec->payload_type < 0) {
-		*payload_type = bts_codec->payload_type;
-		*audio_name = bts_codec->audio_name;
-		*fmtp_extra = endp->bts_end.fmtp_extra;
-		return;
-	}
-
-	*payload_type = net_codec->payload_type;
-	*audio_name = net_codec->audio_name;
-	*fmtp_extra = endp->net_end.fmtp_extra;
-}
-
-static int decode_audio(struct mgcp_process_rtp_state *state,
-			uint8_t **src, size_t *nbytes)
-{
-	while (*nbytes >= state->src_frame_size) {
-		if (state->sample_cnt + state->src_samples_per_frame > ARRAY_SIZE(state->samples)) {
-			LOGP(DLMGCP, LOGL_ERROR,
-			     "Sample buffer too small: %zu > %zu.\n",
-			     state->sample_cnt + state->src_samples_per_frame,
-			     ARRAY_SIZE(state->samples));
-			return -ENOSPC;
-		}
-		switch (state->src_fmt) {
-		case AF_GSM:
-			if (gsm_decode(state->src.gsm_handle,
-				       (gsm_byte *)*src, state->samples + state->sample_cnt) < 0) {
-				LOGP(DLMGCP, LOGL_ERROR,
-				     "Failed to decode GSM.\n");
-				return -EINVAL;
-			}
-			break;
-#ifdef HAVE_BCG729
-		case AF_G729:
-			bcg729Decoder(state->src.g729_dec, *src, 0, state->samples + state->sample_cnt);
-			break;
-#endif
-		case AF_PCMU:
-			ulaw_decode(*src, state->samples + state->sample_cnt,
-				    state->src_samples_per_frame);
-			break;
-		case AF_PCMA:
-			alaw_decode(*src, state->samples + state->sample_cnt,
-				    state->src_samples_per_frame);
-			break;
-		case AF_S16:
-			memmove(state->samples + state->sample_cnt, *src,
-				state->src_frame_size);
-			break;
-		case AF_L16:
-			l16_decode(*src, state->samples + state->sample_cnt,
-				   state->src_samples_per_frame);
-			break;
-		default:
-			break;
-		}
-		*src        += state->src_frame_size;
-		*nbytes     -= state->src_frame_size;
-		state->sample_cnt += state->src_samples_per_frame;
-	}
-	return 0;
-}
-
-static int encode_audio(struct mgcp_process_rtp_state *state,
-			uint8_t *dst, size_t buf_size, size_t max_samples)
-{
-	int nbytes = 0;
-	size_t nsamples = 0;
-	/* Encode samples into dst */
-	while (nsamples + state->dst_samples_per_frame <= max_samples) {
-		if (nbytes + state->dst_frame_size > buf_size) {
-			if (nbytes > 0)
-				break;
-
-			/* Not even one frame fits into the buffer */
-			LOGP(DLMGCP, LOGL_INFO,
-			     "Encoding (RTP) buffer too small: %zu > %zu.\n",
-			     nbytes + state->dst_frame_size, buf_size);
-			return -ENOSPC;
-		}
-		switch (state->dst_fmt) {
-		case AF_GSM:
-			gsm_encode(state->dst.gsm_handle,
-				   state->samples + state->sample_offs, dst);
-			break;
-#ifdef HAVE_BCG729
-		case AF_G729:
-			bcg729Encoder(state->dst.g729_enc,
-				      state->samples + state->sample_offs, dst);
-			break;
-#endif
-		case AF_PCMU:
-			ulaw_encode(state->samples + state->sample_offs, dst,
-				    state->src_samples_per_frame);
-			break;
-		case AF_PCMA:
-			alaw_encode(state->samples + state->sample_offs, dst,
-				    state->src_samples_per_frame);
-			break;
-		case AF_S16:
-			memmove(dst, state->samples + state->sample_offs,
-				state->dst_frame_size);
-			break;
-		case AF_L16:
-			l16_encode(state->samples + state->sample_offs, dst,
-				   state->src_samples_per_frame);
-			break;
-		default:
-			break;
-		}
-		dst        += state->dst_frame_size;
-		nbytes     += state->dst_frame_size;
-		state->sample_offs += state->dst_samples_per_frame;
-		nsamples   += state->dst_samples_per_frame;
-	}
-	state->sample_cnt -= nsamples;
-	return nbytes;
-}
-
-static struct mgcp_rtp_end *source_for_dest(struct mgcp_endpoint *endp,
-					struct mgcp_rtp_end *dst_end)
-{
-	if (&endp->bts_end == dst_end)
-		return &endp->net_end;
-	else if (&endp->net_end == dst_end)
-		return &endp->bts_end;
-	OSMO_ASSERT(0);
-}
-
-/*
- * With some modems we get offered multiple codecs
- * and we have selected one of them. It might not
- * be the right one and we need to detect this with
- * the first audio packets. One difficulty is that
- * we patch the rtp payload type in place, so we
- * need to discuss this.
- */
-struct mgcp_process_rtp_state *check_transcode_state(
-				struct mgcp_endpoint *endp,
-				struct mgcp_rtp_end *dst_end,
-				struct rtp_hdr *rtp_hdr)
-{
-	struct mgcp_rtp_end *src_end;
-
-	/* Only deal with messages from net to bts */
-	if (&endp->bts_end != dst_end)
-		goto done;
-
-	src_end = source_for_dest(endp, dst_end);
-
-	/* Already patched */
-	if (rtp_hdr->payload_type == dst_end->codec.payload_type)
-		goto done;
-	/* The payload we expect */
-	if (rtp_hdr->payload_type == src_end->codec.payload_type)
-		goto done;
-	/* The matching alternate payload type? Then switch */
-	if (rtp_hdr->payload_type == src_end->alt_codec.payload_type) {
-		struct mgcp_config *cfg = endp->cfg;
-		struct mgcp_rtp_codec tmp_codec = src_end->alt_codec;
-		src_end->alt_codec = src_end->codec;
-		src_end->codec = tmp_codec;
-		cfg->setup_rtp_processing_cb(endp, &endp->net_end, &endp->bts_end);
-		cfg->setup_rtp_processing_cb(endp, &endp->bts_end, &endp->net_end);
-	}
-
-done:
-	return dst_end->rtp_process_data;
-}
-
-int mgcp_transcoding_process_rtp(struct mgcp_endpoint *endp,
-				struct mgcp_rtp_end *dst_end,
-			     char *data, int *len, int buf_size)
-{
-	struct mgcp_process_rtp_state *state;
-	const size_t rtp_hdr_size = sizeof(struct rtp_hdr);
-	struct rtp_hdr *rtp_hdr = (struct rtp_hdr *) data;
-	char *payload_data = (char *) &rtp_hdr->data[0];
-	int payload_len = *len - rtp_hdr_size;
-	uint8_t *src = (uint8_t *)payload_data;
-	uint8_t *dst = (uint8_t *)payload_data;
-	size_t nbytes = payload_len;
-	size_t nsamples;
-	size_t max_samples;
-	uint32_t ts_no;
-	int rc;
-
-	state = check_transcode_state(endp, dst_end, rtp_hdr);
-	if (!state)
-		return 0;
-
-	if (state->src_fmt == state->dst_fmt) {
-		if (!state->dst_packet_duration)
-			return 0;
-
-		/* TODO: repackage without transcoding */
-	}
-
-	/* If the remaining samples do not fit into a fixed ptime,
-	 * a) discard them, if the next packet is much later
-	 * b) add silence and * send it, if the current packet is not
-	 *    yet too late
-	 * c) append the sample data, if the timestamp matches exactly
-	 */
-
-	/* TODO: check payload type (-> G.711 comfort noise) */
-
-	if (payload_len > 0) {
-		ts_no = ntohl(rtp_hdr->timestamp);
-		if (!state->is_running) {
-			state->next_seq = ntohs(rtp_hdr->sequence);
-			state->next_time = ts_no;
-			state->is_running = 1;
-		}
-
-
-		if (state->sample_cnt > 0) {
-			int32_t delta = ts_no - state->next_time;
-			/* TODO: check sequence? reordering? packet loss? */
-
-			if (delta > state->sample_cnt) {
-				/* There is a time gap between the last packet
-				 * and the current one. Just discard the
-				 * partial data that is left in the buffer.
-				 * TODO: This can be improved by adding silence
-				 * instead if the delta is small enough.
-				 */
-				LOGP(DLMGCP, LOGL_NOTICE,
-					"0x%x dropping sample buffer due delta=%d sample_cnt=%zu\n",
-					ENDPOINT_NUMBER(endp), delta, state->sample_cnt);
-				state->sample_cnt = 0;
-				state->next_time = ts_no;
-			} else if (delta < 0) {
-				LOGP(DLMGCP, LOGL_NOTICE,
-				     "RTP time jumps backwards, delta = %d, "
-				     "discarding buffered samples\n",
-				     delta);
-				state->sample_cnt = 0;
-				state->sample_offs = 0;
-				return -EAGAIN;
-			}
-
-			/* Make sure the samples start without offset */
-			if (state->sample_offs && state->sample_cnt)
-				memmove(&state->samples[0],
-					&state->samples[state->sample_offs],
-					state->sample_cnt *
-					sizeof(state->samples[0]));
-		}
-
-		state->sample_offs = 0;
-
-		/* Append decoded audio to samples */
-		decode_audio(state, &src, &nbytes);
-
-		if (nbytes > 0)
-			LOGP(DLMGCP, LOGL_NOTICE,
-			     "Skipped audio frame in RTP packet: %zu octets\n",
-			     nbytes);
-	} else
-		ts_no = state->next_time;
-
-	if (state->sample_cnt < state->dst_packet_duration)
-		return -EAGAIN;
-
-	max_samples =
-		state->dst_packet_duration ?
-		state->dst_packet_duration : state->sample_cnt;
-
-	nsamples = state->sample_cnt;
-
-	rc = encode_audio(state, dst, buf_size, max_samples);
-	/*
-	 * There were no samples to encode?
-	 * TODO: how does this work for comfort noise?
-	 */
-	if (rc == 0)
-		return -ENOMSG;
-	/* Any other error during the encoding */
-	if (rc < 0)
-		return rc;
-
-	nsamples -= state->sample_cnt;
-
-	*len = rtp_hdr_size + rc;
-	rtp_hdr->sequence = htons(state->next_seq);
-	rtp_hdr->timestamp = htonl(ts_no);
-
-	state->next_seq += 1;
-	state->next_time = ts_no + nsamples;
-
-	/*
-	 * XXX: At this point we should always have consumed
-	 * samples. So doing OSMO_ASSERT(nsamples > 0) and returning
-	 * rtp_hdr_size should be fine.
-	 */
-	return nsamples ? rtp_hdr_size : 0;
-}

src/libosmo-mgcp-client/Makefile.am

@@ -20,7 +20,7 @@ AM_LDFLAGS = \
 
 # This is not at all related to the release version, but a range of supported
 # API versions. Read TODO_RELEASE in the source tree's root!
-MGCP_CLIENT_LIBVERSION=4:0:1
+MGCP_CLIENT_LIBVERSION=5:0:0
 
 lib_LTLIBRARIES = \
 	libosmo-mgcp-client.la \

src/libosmo-mgcp-client/mgcp_client.c

@@ -190,75 +190,9 @@ void mgcp_client_conf_init(struct mgcp_client_conf *conf)
 		.local_port = -1,
 		.remote_addr = NULL,
 		.remote_port = -1,
-		.first_endpoint = 0,
-		.last_endpoint = 0,
-		.bts_base = 0,
 	};
 }
 
-/* Test if a given endpoint id is currently in use */
-static bool endpoint_in_use(uint16_t id, struct mgcp_client *client)
-{
-	struct mgcp_inuse_endpoint *endpoint;
-	llist_for_each_entry(endpoint, &client->inuse_endpoints, entry) {
-		if (endpoint->id == id)
-			return true;
-	}
-
-	return false;
-}
-
-/*! Pick next free endpoint ID.
- *  \param[in,out] client MGCP client descriptor.
- *  \returns 0 on success, -EINVAL on error. */
-int mgcp_client_next_endpoint(struct mgcp_client *client)
-{
-	int i;
-	uint16_t first_endpoint = client->actual.first_endpoint;
-	uint16_t last_endpoint = client->actual.last_endpoint;
-	struct mgcp_inuse_endpoint *endpoint;
-
-	/* Use the maximum permitted range if the VTY
-	 * configuration does not specify a range */
-	if (client->actual.last_endpoint == 0) {
-		first_endpoint = 1;
-		last_endpoint = 65534;
-	}
-
-	/* Test the permitted endpoint range for an endpoint
-	 * number that is not in use. When a suitable endpoint
-	 * number can be found, seize it by adding it to the
-	 * inuse list. */
-	for (i=first_endpoint;i<last_endpoint;i++)
-	{
-		if (endpoint_in_use(i,client) == false) {
-			endpoint = talloc_zero(client, struct mgcp_inuse_endpoint);
-			endpoint->id = i;
-			llist_add_tail(&endpoint->entry, &client->inuse_endpoints);
-			return endpoint->id;
-		}
-	}
-
-	/* All endpoints are busy! */
-	return -EINVAL;
-}
-
-/*! Release a seized endpoint ID to make it available again for other calls.
- *  \param[in] id Endpoint ID
- *  \param[in,out] client MGCP client descriptor. */
-/* Release a seized endpoint id to make it available again for other calls */
-void mgcp_client_release_endpoint(uint16_t id, struct mgcp_client *client)
-{
-	struct mgcp_inuse_endpoint *endpoint;
-	struct mgcp_inuse_endpoint *endpoint_tmp;
-	llist_for_each_entry_safe(endpoint, endpoint_tmp, &client->inuse_endpoints, entry) {
-		if (endpoint->id == id) {
-			llist_del(&endpoint->entry);
-			talloc_free(endpoint);
-		}
-	}
-}
-
 static void mgcp_client_handle_response(struct mgcp_client *mgcp,
 					struct mgcp_response_pending *pending,
 					struct mgcp_response *response)
@@ -271,7 +205,7 @@ static void mgcp_client_handle_response(struct mgcp_client *mgcp,
 	if (pending->response_cb)
 		pending->response_cb(response, pending->priv);
 	else
-		LOGP(DLMGCP, LOGL_INFO, "MGCP response ignored (NULL cb)\n");
+		LOGP(DLMGCP, LOGL_DEBUG, "MGCP response ignored (NULL cb)\n");
 	talloc_free(pending);
 }
 
@@ -550,6 +484,7 @@ static int mgcp_parse_head_param(char *result, unsigned int result_len,
 				 char label, const char *line)
 {
 	char label_string[4];
+	size_t rc;
 
 	/* Detect empty parameters */
 	if (strlen(line) < 4)
@@ -562,7 +497,14 @@ static int mgcp_parse_head_param(char *result, unsigned int result_len,
 
 	/* Copy payload part of the string to destinations (the label string
 	 * is always 3 chars long) */
-	osmo_strlcpy(result, line + 3, result_len);
+	rc = osmo_strlcpy(result, line + 3, result_len);
+	if (rc >= result_len) {
+		LOGP(DLMGCP, LOGL_ERROR,
+		     "Failed to parse MGCP response (parameter label: %c):"
+		     " the received conn ID is too long: %zu, maximum is %u characters\n",
+		     label, rc, result_len - 1);
+		return -ENOSPC;
+	}
 	return 0;
 
 response_parse_failure:
@@ -709,11 +651,13 @@ static int mgcp_do_read(struct osmo_fd *fd)
 
 	ret = read(fd->fd, msg->data, 4096 - 128);
 	if (ret <= 0) {
-		LOGP(DLMGCP, LOGL_ERROR, "Failed to read: %d/%s\n", errno, strerror(errno));
+		LOGP(DLMGCP, LOGL_ERROR, "Failed to read: %s: %d='%s'\n", osmo_sock_get_name2(fd->fd),
+		     errno, strerror(errno));
+
 		msgb_free(msg);
 		return -1;
 	} else if (ret > 4096 - 128) {
-		LOGP(DLMGCP, LOGL_ERROR, "Too much data: %d\n", ret);
+		LOGP(DLMGCP, LOGL_ERROR, "Too much data: %s: %d\n", osmo_sock_get_name2(fd->fd), ret);
 		msgb_free(msg);
 		return -1;
 	}
@@ -727,26 +671,15 @@ static int mgcp_do_read(struct osmo_fd *fd)
 static int mgcp_do_write(struct osmo_fd *fd, struct msgb *msg)
 {
 	int ret;
-	static char strbuf[4096];
-	unsigned int l = msg->len < sizeof(strbuf) ? msg->len : sizeof(strbuf);
-	unsigned int i;
 
-	osmo_strlcpy(strbuf, (const char*)msg->data, l);
-	for (i = 0; i < sizeof(strbuf); i++) {
-		if (strbuf[i] == '\n' || strbuf[i] == '\r') {
-			strbuf[i] = '\0';
-			break;
-		}
-	}
-	DEBUGP(DLMGCP, "Tx MGCP msg to MGCP GW: '%s'\n", strbuf);
-
-	LOGP(DLMGCP, LOGL_DEBUG, "Sending msg to MGCP GW size: %u\n", msg->len);
+	LOGP(DLMGCP, LOGL_DEBUG, "Tx MGCP: %s: len=%u '%s'...\n",
+	     osmo_sock_get_name2(fd->fd), msg->len, osmo_escape_str((const char*)msg->data, OSMO_MIN(42, msg->len)));
 
 	ret = write(fd->fd, msg->data, msg->len);
 	if (ret != msg->len)
-		LOGP(DLMGCP, LOGL_ERROR, "Failed to forward message to MGCP"
-		     " GW: %s\n", strerror(errno));
-
+		LOGP(DLMGCP, LOGL_ERROR, "Failed to Tx MGCP: %s: %d='%s'; msg: len=%u '%s'...\n",
+		     osmo_sock_get_name2(fd->fd), errno, strerror(errno),
+		     msg->len, osmo_escape_str((const char*)msg->data, OSMO_MIN(42, msg->len)));
 	return ret;
 }
 
@@ -772,13 +705,55 @@ struct mgcp_client *mgcp_client_init(void *ctx,
 	mgcp->actual.remote_port = conf->remote_port >= 0 ? (uint16_t)conf->remote_port :
 		MGCP_CLIENT_REMOTE_PORT_DEFAULT;
 
-	mgcp->actual.first_endpoint = conf->first_endpoint > 0 ? (uint16_t)conf->first_endpoint : 0;
-	mgcp->actual.last_endpoint = conf->last_endpoint > 0 ? (uint16_t)conf->last_endpoint : 0;
-	mgcp->actual.bts_base = conf->bts_base > 0 ? (uint16_t)conf->bts_base : 4000;
+	if (osmo_strlcpy(mgcp->actual.endpoint_domain_name, conf->endpoint_domain_name,
+			 sizeof(mgcp->actual.endpoint_domain_name))
+	    >= sizeof(mgcp->actual.endpoint_domain_name)) {
+		LOGP(DLMGCP, LOGL_ERROR, "MGCP client: endpoint domain name is too long, max length is %zu: '%s'\n",
+		     sizeof(mgcp->actual.endpoint_domain_name) - 1, conf->endpoint_domain_name);
+		talloc_free(mgcp);
+		return NULL;
+	}
+	LOGP(DLMGCP, LOGL_NOTICE, "MGCP client: using endpoint domain '@%s'\n", mgcp_client_endpoint_domain(mgcp));
 
 	return mgcp;
 }
 
+static int init_socket(struct mgcp_client *mgcp)
+{
+	int rc;
+	struct osmo_wqueue *wq;
+	int i;
+
+	wq = &mgcp->wq;
+
+	for (i = 0; i < 100; i++) {
+
+		/* Initalize socket with the currently configured port
+		 * number */
+		rc = osmo_sock_init2_ofd(&wq->bfd, AF_INET, SOCK_DGRAM, IPPROTO_UDP, mgcp->actual.local_addr,
+					 mgcp->actual.local_port, mgcp->actual.remote_addr, mgcp->actual.remote_port,
+					 OSMO_SOCK_F_BIND | OSMO_SOCK_F_CONNECT);
+		if (rc > 0)
+			return rc;
+
+		/* If there is a different port than the default port
+		 * configured then we assume that the user has choosen
+		 * that port conciously and we will not try to resolve
+		 * this by silently choosing a different port. */
+		if (mgcp->actual.local_port != MGCP_CLIENT_LOCAL_PORT_DEFAULT && i == 0)
+			return -EINVAL;
+
+		/* Choose a new port number to try next */
+		LOGP(DLMGCP, LOGL_NOTICE,
+		     "MGCPGW failed to bind to %s:%u, retrying with port %u\n",
+		     mgcp->actual.local_addr, mgcp->actual.local_port, mgcp->actual.local_port + 1);
+		mgcp->actual.local_port++;
+	}
+
+	LOGP(DLMGCP, LOGL_FATAL, "MGCPGW failed to find a port to bind on %i times.\n", i);
+	return -EINVAL;
+}
+
 /*! Initalize client connection (opens socket only, no request is sent yet)
  *  \param[in,out] mgcp MGCP client descriptor.
  *  \returns 0 on success, -EINVAL on error. */
@@ -795,10 +770,7 @@ int mgcp_client_connect(struct mgcp_client *mgcp)
 
 	wq = &mgcp->wq;
 
-	rc = osmo_sock_init2_ofd(&wq->bfd, AF_INET, SOCK_DGRAM, IPPROTO_UDP,
-				 mgcp->actual.local_addr, mgcp->actual.local_port,
-				 mgcp->actual.remote_addr, mgcp->actual.remote_port,
-				 OSMO_SOCK_F_BIND | OSMO_SOCK_F_CONNECT);
+	rc = init_socket(mgcp);
 	if (rc < 0) {
 		LOGP(DLMGCP, LOGL_FATAL,
 		     "Failed to initialize socket %s:%u -> %s:%u for MGCP GW: %s\n",
@@ -816,9 +788,7 @@ int mgcp_client_connect(struct mgcp_client *mgcp)
 	wq->read_cb = mgcp_do_read;
 	wq->write_cb = mgcp_do_write;
 
-	LOGP(DLMGCP, LOGL_INFO, "MGCP GW connection: %s:%u -> %s:%u\n",
-	     mgcp->actual.local_addr, mgcp->actual.local_port,
-	     mgcp->actual.remote_addr, mgcp->actual.remote_port);
+	LOGP(DLMGCP, LOGL_INFO, "MGCP GW connection: %s\n", osmo_sock_get_name2(wq->bfd.fd));
 
 	return 0;
 error_close_fd:
@@ -851,6 +821,32 @@ uint32_t mgcp_client_remote_addr_n(struct mgcp_client *mgcp)
 	return mgcp->remote_addr;
 }
 
+/* To compose endpoint names, usually for CRCX, use this as domain name.
+ * For example, snprintf("rtpbridge\*@%s", mgcp_client_endpoint_domain(mgcp)). */
+const char *mgcp_client_endpoint_domain(const struct mgcp_client *mgcp)
+{
+	return mgcp->actual.endpoint_domain_name[0] ? mgcp->actual.endpoint_domain_name : "mgw";
+}
+
+const char *mgcp_client_rtpbridge_wildcard(const struct mgcp_client *mgcp)
+{
+	static char endpoint[MGCP_ENDPOINT_MAXLEN];
+	int rc;
+
+#define RTPBRIDGE_WILDCARD_FMT "rtpbridge/*@%s"
+	rc = snprintf(endpoint, sizeof(endpoint), RTPBRIDGE_WILDCARD_FMT, mgcp_client_endpoint_domain(mgcp));
+	if (rc > sizeof(endpoint) - 1) {
+		LOGP(DLMGCP, LOGL_ERROR, "MGCP endpoint exceeds maximum length of %zu: '" RTPBRIDGE_WILDCARD_FMT "'\n",
+		     sizeof(endpoint) - 1, mgcp_client_endpoint_domain(mgcp));
+		return NULL;
+	}
+	if (rc < 1) {
+		LOGP(DLMGCP, LOGL_ERROR, "Cannot compose MGCP endpoint name\n");
+		return NULL;
+	}
+	return endpoint;
+}
+
 struct mgcp_response_pending * mgcp_client_pending_add(
 					struct mgcp_client *mgcp,
 					mgcp_trans_id_t trans_id,
@@ -908,7 +904,7 @@ int mgcp_client_tx(struct mgcp_client *mgcp, struct msgb *msg,
 		msgb_free(msg);
 		goto mgcp_tx_error;
 	} else
-		LOGP(DLMGCP, LOGL_INFO, "Queued %u bytes for MGCP GW\n",
+		LOGP(DLMGCP, LOGL_DEBUG, "Queued %u bytes for MGCP GW\n",
 		     msgb_l2len(msg));
 	return 0;
 
@@ -932,10 +928,10 @@ int mgcp_client_cancel(struct mgcp_client *mgcp, mgcp_trans_id_t trans_id)
 	struct mgcp_response_pending *pending = mgcp_client_response_pending_get(mgcp, trans_id);
 	if (!pending) {
 		/*! Note: it is not harmful to cancel a transaction twice. */
-		LOGP(DLMGCP, LOGL_INFO, "Cannot cancel, no such transaction: %u\n", trans_id);
+		LOGP(DLMGCP, LOGL_ERROR, "Cannot cancel, no such transaction: %u\n", trans_id);
 		return -ENOENT;
 	}
-	LOGP(DLMGCP, LOGL_INFO, "Canceled transaction %u\n", trans_id);
+	LOGP(DLMGCP, LOGL_DEBUG, "Canceled transaction %u\n", trans_id);
 	talloc_free(pending);
 	return 0;
 	/*! We don't really need to clean up the wqueue: In all sane cases, the msgb has already been sent
@@ -947,54 +943,6 @@ int mgcp_client_cancel(struct mgcp_client *mgcp, mgcp_trans_id_t trans_id)
 	 */
 }
 
-static struct msgb *mgcp_msg_from_buf(mgcp_trans_id_t trans_id,
-				      const char *buf, int len)
-{
-	struct msgb *msg;
-
-	if (len > (4096 - 128)) {
-		LOGP(DLMGCP, LOGL_ERROR, "Cannot send to MGCP GW:"
-		     " message too large: %d\n", len);
-		return NULL;
-	}
-
-	msg = msgb_alloc_headroom(4096, 128, "MGCP tx");
-	OSMO_ASSERT(msg);
-
-	char *dst = (char*)msgb_put(msg, len);
-	memcpy(dst, buf, len);
-	msg->l2h = msg->data;
-	msg->cb[MSGB_CB_MGCP_TRANS_ID] = trans_id;
-
-	return msg;
-}
-
-static struct msgb *mgcp_msg_from_str(mgcp_trans_id_t trans_id,
-				      const char *fmt, ...)
-{
-	static char compose[4096 - 128];
-	va_list ap;
-	int len;
-	OSMO_ASSERT(fmt);
-
-	va_start(ap, fmt);
-	len = vsnprintf(compose, sizeof(compose), fmt, ap);
-	va_end(ap);
-	if (len >= sizeof(compose)) {
-		LOGP(DLMGCP, LOGL_ERROR,
-		     "Message too large: trans_id=%u len=%d\n",
-		     trans_id, len);
-		return NULL;
-	}
-	if (len < 1) {
-		LOGP(DLMGCP, LOGL_ERROR,
-		     "Failed to compose message: trans_id=%u len=%d\n",
-		     trans_id, len);
-		return NULL;
-	}
-	return mgcp_msg_from_buf(trans_id, compose, len);
-}
-
 static mgcp_trans_id_t mgcp_client_next_trans_id(struct mgcp_client *mgcp)
 {
 	/* avoid zero trans_id to distinguish from unset trans_id */
@@ -1003,52 +951,6 @@ static mgcp_trans_id_t mgcp_client_next_trans_id(struct mgcp_client *mgcp)
 	return mgcp->next_trans_id ++;
 }
 
-struct msgb *mgcp_msg_crcx(struct mgcp_client *mgcp,
-			   uint16_t rtp_endpoint, unsigned int call_id,
-			   enum mgcp_connection_mode mode)
-{
-	mgcp_trans_id_t trans_id = mgcp_client_next_trans_id(mgcp);
-	return mgcp_msg_from_str(trans_id,
-		 "CRCX %u %x@mgw MGCP 1.0\r\n"
-		 "C: %x\r\n"
-		 "L: p:20, a:AMR, nt:IN\r\n"
-		 "M: %s\r\n"
-		 ,
-		 trans_id,
-		 rtp_endpoint,
-		 call_id,
-		 mgcp_client_cmode_name(mode));
-}
-
-struct msgb *mgcp_msg_mdcx(struct mgcp_client *mgcp,
-			   uint16_t rtp_endpoint, const char *rtp_conn_addr,
-			   uint16_t rtp_port, enum mgcp_connection_mode mode)
-
-{
-	mgcp_trans_id_t trans_id = mgcp_client_next_trans_id(mgcp);
-	return mgcp_msg_from_str(trans_id,
-		 "MDCX %u %x@mgw MGCP 1.0\r\n"
-		 "M: %s\r\n"
-		 "\r\n"
-		 "c=IN IP4 %s\r\n"
-		 "m=audio %u RTP/AVP 255\r\n"
-		 ,
-		 trans_id,
-		 rtp_endpoint,
-		 mgcp_client_cmode_name(mode),
-		 rtp_conn_addr,
-		 rtp_port);
-}
-
-struct msgb *mgcp_msg_dlcx(struct mgcp_client *mgcp, uint16_t rtp_endpoint,
-			   unsigned int call_id)
-{
-	mgcp_trans_id_t trans_id = mgcp_client_next_trans_id(mgcp);
-	return mgcp_msg_from_str(trans_id,
-				 "DLCX %u %x@mgw MGCP 1.0\r\n"
-				 "C: %x\r\n", trans_id, rtp_endpoint, call_id);
-}
-
 #define MGCP_CRCX_MANDATORY (MGCP_MSG_PRESENCE_ENDPOINT | \
 			     MGCP_MSG_PRESENCE_CALL_ID | \
 			     MGCP_MSG_PRESENCE_CONN_MODE)
@@ -1280,6 +1182,13 @@ struct msgb *mgcp_msg_gen(struct mgcp_client *mgcp, struct mgcp_msg *mgcp_msg)
 		    msgb_printf(msg, "M: %s\r\n",
 				mgcp_client_cmode_name(mgcp_msg->conn_mode));
 
+	/* Add X-Osmo-IGN */
+	if ((mgcp_msg->presence & MGCP_MSG_PRESENCE_X_OSMO_IGN)
+	    && (mgcp_msg->x_osmo_ign != 0))
+		rc +=
+		    msgb_printf(msg, MGCP_X_OSMO_IGN_HEADER "%s\r\n",
+				mgcp_msg->x_osmo_ign & MGCP_X_OSMO_IGN_CALLID ? " C": "");
+
 	/* Add session description protocol (SDP) */
 	if (use_sdp
 	    && (mgcp_msg->verb == MGCP_VERB_CRCX

src/libosmo-mgcp-client/mgcp_client_fsm.c

@@ -41,7 +41,7 @@ struct mgcp_ctx {
 	bool mgw_trans_pending;
 
 	/* Connection ID which has been assigned by he MGW */
-	char conn_id[MGCP_CONN_ID_LENGTH];
+	char conn_id[MGCP_CONN_ID_MAXLEN];
 
 	/* Local RTP connection info, the MGW will send outgoing traffic to the
 	 * ip/port specified here. The Address does not have to be choosen right
@@ -104,44 +104,34 @@ static const struct value_string fsm_mgcp_client_evt_names[] = {
 	{0, NULL}
 };
 
-static struct msgb *make_crcx_msg_bind(struct mgcp_ctx *mgcp_ctx)
+static void make_crcx_msg(struct mgcp_msg *mgcp_msg, struct mgcp_conn_peer *info)
 {
-	struct mgcp_msg mgcp_msg;
-
-	mgcp_msg = (struct mgcp_msg) {
+	*mgcp_msg = (struct mgcp_msg) {
 		.verb = MGCP_VERB_CRCX,
-		.presence = (MGCP_MSG_PRESENCE_ENDPOINT | MGCP_MSG_PRESENCE_CALL_ID | MGCP_MSG_PRESENCE_CONN_MODE),
-		.call_id = mgcp_ctx->conn_peer_local.call_id,
+		.presence = (MGCP_MSG_PRESENCE_ENDPOINT | MGCP_MSG_PRESENCE_CALL_ID
+			     | MGCP_MSG_PRESENCE_CONN_MODE),
+		.call_id = info->call_id,
 		.conn_mode = MGCP_CONN_RECV_ONLY,
-		.ptime = mgcp_ctx->conn_peer_local.ptime,
-		.codecs_len = mgcp_ctx->conn_peer_local.codecs_len
+		.ptime = info->ptime,
+		.codecs_len = info->codecs_len,
+		.ptmap_len = info->ptmap_len
 	};
-	osmo_strlcpy(mgcp_msg.endpoint, mgcp_ctx->conn_peer_local.endpoint, MGCP_ENDPOINT_MAXLEN);
-	memcpy(mgcp_msg.codecs, mgcp_ctx->conn_peer_local.codecs, sizeof(mgcp_msg.codecs));
+	osmo_strlcpy(mgcp_msg->endpoint, info->endpoint, MGCP_ENDPOINT_MAXLEN);
+	memcpy(mgcp_msg->codecs, info->codecs, sizeof(mgcp_msg->codecs));
+	memcpy(mgcp_msg->ptmap, info->ptmap, sizeof(mgcp_msg->ptmap));
 
-	return mgcp_msg_gen(mgcp_ctx->mgcp, &mgcp_msg);
+	if (info->x_osmo_ign) {
+		mgcp_msg->x_osmo_ign = info->x_osmo_ign;
+		mgcp_msg->presence |= MGCP_MSG_PRESENCE_X_OSMO_IGN;
+	}
 }
 
-static struct msgb *make_crcx_msg_bind_connect(struct mgcp_ctx *mgcp_ctx)
+static void add_audio(struct mgcp_msg *mgcp_msg, struct mgcp_conn_peer *info)
 {
-	struct mgcp_msg mgcp_msg;
-
-	mgcp_msg = (struct mgcp_msg) {
-		.verb = MGCP_VERB_CRCX,
-		.presence = (MGCP_MSG_PRESENCE_ENDPOINT | MGCP_MSG_PRESENCE_CALL_ID |
-			     MGCP_MSG_PRESENCE_CONN_MODE | MGCP_MSG_PRESENCE_AUDIO_IP |
-			     MGCP_MSG_PRESENCE_AUDIO_PORT),
-		.call_id = mgcp_ctx->conn_peer_local.call_id,
-		.conn_mode = MGCP_CONN_RECV_SEND,
-		.audio_ip = mgcp_ctx->conn_peer_local.addr,
-		.audio_port = mgcp_ctx->conn_peer_local.port,
-		.ptime = mgcp_ctx->conn_peer_local.ptime,
-		.codecs_len = mgcp_ctx->conn_peer_local.codecs_len
-	};
-	osmo_strlcpy(mgcp_msg.endpoint, mgcp_ctx->conn_peer_local.endpoint, MGCP_ENDPOINT_MAXLEN);
-	memcpy(mgcp_msg.codecs, mgcp_ctx->conn_peer_local.codecs, sizeof(mgcp_msg.codecs));
-
-	return mgcp_msg_gen(mgcp_ctx->mgcp, &mgcp_msg);
+	mgcp_msg->presence |= MGCP_MSG_PRESENCE_AUDIO_IP | MGCP_MSG_PRESENCE_AUDIO_PORT;
+	mgcp_msg->audio_ip = info->addr;
+	mgcp_msg->audio_port = info->port;
+	mgcp_msg->conn_mode = MGCP_CONN_RECV_SEND;
 }
 
 static struct msgb *make_mdcx_msg(struct mgcp_ctx *mgcp_ctx)
@@ -158,10 +148,12 @@ static struct msgb *make_mdcx_msg(struct mgcp_ctx *mgcp_ctx)
 		.audio_ip = mgcp_ctx->conn_peer_local.addr,
 		.audio_port = mgcp_ctx->conn_peer_local.port,
 		.ptime = mgcp_ctx->conn_peer_local.ptime,
-		.codecs_len = mgcp_ctx->conn_peer_local.codecs_len
+		.codecs_len = mgcp_ctx->conn_peer_local.codecs_len,
+		.ptmap_len = mgcp_ctx->conn_peer_local.ptmap_len
 	};
 	osmo_strlcpy(mgcp_msg.endpoint, mgcp_ctx->conn_peer_remote.endpoint, MGCP_ENDPOINT_MAXLEN);
 	memcpy(mgcp_msg.codecs, mgcp_ctx->conn_peer_local.codecs, sizeof(mgcp_msg.codecs));
+	memcpy(mgcp_msg.ptmap, mgcp_ctx->conn_peer_local.ptmap, sizeof(mgcp_msg.ptmap));
 
 	/* Note: We take the endpoint and the call_id from the remote
 	 * connection info, because we can be confident that the
@@ -191,6 +183,7 @@ static void fsm_crcx_cb(struct osmo_fsm_inst *fi, uint32_t event, void *data)
 {
 	struct mgcp_ctx *mgcp_ctx = data;
 	struct mgcp_client *mgcp;
+	struct mgcp_msg mgcp_msg;
 	struct msgb *msg;
 	int rc;
 
@@ -203,10 +196,10 @@ static void fsm_crcx_cb(struct osmo_fsm_inst *fi, uint32_t event, void *data)
 		LOGPFSML(fi, LOGL_DEBUG, "MGW/CRCX: creating connection on MGW endpoint:%s...\n",
 			 mgcp_ctx->conn_peer_local.endpoint);
 
+		make_crcx_msg(&mgcp_msg, &mgcp_ctx->conn_peer_local);
 		if (mgcp_ctx->conn_peer_local.port)
-			msg = make_crcx_msg_bind_connect(mgcp_ctx);
-		else
-			msg = make_crcx_msg_bind(mgcp_ctx);
+			add_audio(&mgcp_msg, &mgcp_ctx->conn_peer_local);
+		msg = mgcp_msg_gen(mgcp_ctx->mgcp, &mgcp_msg);
 		OSMO_ASSERT(msg);
 
 		mgcp_ctx->mgw_pending_trans = mgcp_msg_trans_id(msg);

src/libosmo-mgcp-client/mgcp_client_vty.c

@@ -30,7 +30,7 @@
 
 #include <osmocom/mgcp_client/mgcp_client.h>
 
-#define MGW_STR "Configure MGCP connection to Media Gateway\n"
+#define MGW_STR MGCP_CLIENT_MGW_STR
 
 void *global_mgcp_client_ctx = NULL;
 struct mgcp_client_conf *global_mgcp_client_conf = NULL;
@@ -43,8 +43,9 @@ DEFUN(cfg_mgw_local_ip, cfg_mgw_local_ip_cmd,
 	if (!global_mgcp_client_conf)
 		return CMD_ERR_NOTHING_TODO;
 	OSMO_ASSERT(global_mgcp_client_ctx);
-	global_mgcp_client_conf->local_addr =
-		talloc_strdup(global_mgcp_client_ctx, argv[0]);
+	osmo_talloc_replace_string(global_mgcp_client_ctx,
+				   (char**)&global_mgcp_client_conf->local_addr,
+				   argv[0]);
 	return CMD_SUCCESS;
 }
 ALIAS_DEPRECATED(cfg_mgw_local_ip, cfg_mgcpgw_local_ip_cmd,
@@ -75,8 +76,9 @@ DEFUN(cfg_mgw_remote_ip, cfg_mgw_remote_ip_cmd,
 	if (!global_mgcp_client_conf)
 		return CMD_ERR_NOTHING_TODO;
 	OSMO_ASSERT(global_mgcp_client_ctx);
-	global_mgcp_client_conf->remote_addr =
-		talloc_strdup(global_mgcp_client_ctx, argv[0]);
+	osmo_talloc_replace_string(global_mgcp_client_ctx,
+				   (char**)&global_mgcp_client_conf->remote_addr,
+				   argv[0]);
 	return CMD_SUCCESS;
 }
 ALIAS_DEPRECATED(cfg_mgw_remote_ip, cfg_mgcpgw_remote_ip_cmd,
@@ -99,24 +101,15 @@ ALIAS_DEPRECATED(cfg_mgw_remote_port, cfg_mgcpgw_remote_port_cmd,
 		 MGW_STR "remote bind to connect to MGCP gateway with\n"
 		 "remote bind port\n")
 
-DEFUN(cfg_mgw_endpoint_range, cfg_mgw_endpoint_range_cmd,
+DEFUN_DEPRECATED(cfg_mgw_endpoint_range, cfg_mgw_endpoint_range_cmd,
       "mgw endpoint-range <1-65534> <1-65534>",
-      MGW_STR "usable range of endpoint identifiers\n"
-      "set first usable endpoint identifier\n"
-      "set last usable endpoint identifier\n")
+      MGW_STR "DEPRECATED: the endpoint range cannot be defined by the client\n"
+      "-\n" "-\n")
 {
-	uint16_t first_endpoint = atoi(argv[0]);
-	uint16_t last_endpoint = atoi(argv[1]);
-
-	if (last_endpoint < first_endpoint) {
-		vty_out(vty, "last endpoint must be greater than first endpoint!%s",
+	vty_out(vty, "Please do not use legacy config 'mgw endpoint-range'"
+		" (the range can no longer be defined by the MGCP client)%s",
 		VTY_NEWLINE);
 	return CMD_SUCCESS;
-	}
-
-	global_mgcp_client_conf->first_endpoint = first_endpoint;
-	global_mgcp_client_conf->last_endpoint = last_endpoint;
-	return CMD_SUCCESS;
 }
 ALIAS_DEPRECATED(cfg_mgw_endpoint_range, cfg_mgcpgw_endpoint_range_cmd,
       "mgcpgw endpoint-range <1-65534> <1-65534>",
@@ -126,14 +119,15 @@ ALIAS_DEPRECATED(cfg_mgw_endpoint_range, cfg_mgcpgw_endpoint_range_cmd,
 
 #define BTS_START_STR "First UDP port allocated for the BTS side\n"
 #define UDP_PORT_STR "UDP Port number\n"
-DEFUN(cfg_mgw_rtp_bts_base_port,
+DEFUN_DEPRECATED(cfg_mgw_rtp_bts_base_port,
       cfg_mgw_rtp_bts_base_port_cmd,
       "mgw bts-base <0-65534>",
       MGW_STR
-      BTS_START_STR
-      UDP_PORT_STR)
+      "DEPRECATED: there is no explicit BTS side in current osmo-mgw\n" "-\n")
 {
-	global_mgcp_client_conf->bts_base = atoi(argv[0]);
+	vty_out(vty, "Please do not use legacy config 'mgw bts-base'"
+		" (there is no explicit BTS side in an MGW anymore)%s",
+		VTY_NEWLINE);
 	return CMD_SUCCESS;
 }
 ALIAS_DEPRECATED(cfg_mgw_rtp_bts_base_port,
@@ -143,13 +137,26 @@ ALIAS_DEPRECATED(cfg_mgw_rtp_bts_base_port,
       BTS_START_STR
       UDP_PORT_STR)
 
+DEFUN(cfg_mgw_endpoint_domain_name,
+      cfg_mgw_endpoint_domain_name_cmd,
+      "mgw endpoint-domain NAME",
+      MGW_STR "Set the domain name to send in MGCP messages, e.g. the part 'foo' in 'rtpbridge/*@foo'.\n"
+      "Domain name, should be alphanumeric.\n")
+{
+	if (osmo_strlcpy(global_mgcp_client_conf->endpoint_domain_name, argv[0],
+			 sizeof(global_mgcp_client_conf->endpoint_domain_name))
+	    >= sizeof(global_mgcp_client_conf->endpoint_domain_name)) {
+		vty_out(vty, "%% Error: 'mgw endpoint-domain' name too long, max length is %zu: '%s'%s",
+			sizeof(global_mgcp_client_conf->endpoint_domain_name) - 1, argv[0], VTY_NEWLINE);
+		return CMD_WARNING;
+	}
+	return CMD_SUCCESS;
+}
+
 int mgcp_client_config_write(struct vty *vty, const char *indent)
 {
 	const char *addr;
 	int port;
-	uint16_t first_endpoint;
-	uint16_t last_endpoint;
-	uint16_t bts_base;
 
 	addr = global_mgcp_client_conf->local_addr;
 	if (addr)
@@ -169,18 +176,9 @@ int mgcp_client_config_write(struct vty *vty, const char *indent)
 		vty_out(vty, "%smgw remote-port %u%s", indent,
 			(uint16_t)port, VTY_NEWLINE);
 
-	first_endpoint = global_mgcp_client_conf->first_endpoint;
-	last_endpoint = global_mgcp_client_conf->last_endpoint;
-	if (last_endpoint != 0) {
-		vty_out(vty, "%smgw endpoint-range %u %u%s", indent,
-			first_endpoint, last_endpoint, VTY_NEWLINE);
-	}
-
-	bts_base = global_mgcp_client_conf->bts_base;
-	if (bts_base) {
-		vty_out(vty, "%smgw bts-base %u%s", indent,
-			bts_base, VTY_NEWLINE);
-	}
+	if (global_mgcp_client_conf->endpoint_domain_name[0])
+		vty_out(vty, "%smgw endpoint-domain %s%s", indent,
+			global_mgcp_client_conf->endpoint_domain_name, VTY_NEWLINE);
 
 	return CMD_SUCCESS;
 }
@@ -196,6 +194,7 @@ void mgcp_client_vty_init(void *talloc_ctx, int node, struct mgcp_client_conf *c
 	install_element(node, &cfg_mgw_remote_port_cmd);
 	install_element(node, &cfg_mgw_endpoint_range_cmd);
 	install_element(node, &cfg_mgw_rtp_bts_base_port_cmd);
+	install_element(node, &cfg_mgw_endpoint_domain_name_cmd);
 
 	/* deprecated 'mgcpgw' commands */
 	install_element(node, &cfg_mgcpgw_local_ip_cmd);

src/libosmo-mgcp/mgcp_codec.c

@@ -341,3 +341,70 @@ int mgcp_codec_decide(struct mgcp_conn_rtp *conn)
 
 	return -EINVAL;
 }
+
+/* Compare two codecs, all parameters must match up, except for the payload type
+ * number. */
+static bool codecs_cmp(struct mgcp_rtp_codec *codec_a, struct mgcp_rtp_codec *codec_b)
+{
+	if (codec_a->rate != codec_b->rate)
+		return false;
+	if (codec_a->channels != codec_b->channels)
+		return false;
+	if (codec_a->frame_duration_num != codec_b->frame_duration_num)
+		return false;
+	if (codec_a->frame_duration_den != codec_b->frame_duration_den)
+		return false;
+	if (strcmp(codec_a->audio_name, codec_b->audio_name))
+		return false;
+	if (strcmp(codec_a->subtype_name, codec_b->subtype_name))
+		return false;
+
+	return true;
+}
+
+/*! Translate a given payload type number that belongs to the packet of a
+ *  source connection to the equivalent payload type number that matches the
+ *  configuration of a destination connection.
+ *  \param[in] conn_src related source rtp-connection.
+ *  \param[in] conn_dst related destination rtp-connection.
+ *  \param[in] payload_type number from the source packet or source connection.
+ *  \returns translated payload type number on success, -EINVAL on failure. */
+int mgcp_codec_pt_translate(struct mgcp_conn_rtp *conn_src, struct mgcp_conn_rtp *conn_dst, int payload_type)
+{
+	struct mgcp_rtp_end *rtp_src;
+	struct mgcp_rtp_end *rtp_dst;
+	struct mgcp_rtp_codec *codec_src = NULL;
+	struct mgcp_rtp_codec *codec_dst = NULL;
+	unsigned int i;
+	unsigned int codecs_assigned;
+
+	rtp_src = &conn_src->end;
+	rtp_dst = &conn_dst->end;
+
+	/* Find the codec information that is used on the source side */
+	codecs_assigned = rtp_src->codecs_assigned;
+	OSMO_ASSERT(codecs_assigned <= MGCP_MAX_CODECS);
+	for (i = 0; i < codecs_assigned; i++) {
+		if (payload_type == rtp_src->codecs[i].payload_type) {
+			codec_src = &rtp_src->codecs[i];
+			break;
+		}
+	}
+	if (!codec_src)
+		return -EINVAL;
+
+	/* Use the codec infrmation from the source and try to find the
+	 * equivalent of it on the destination side */
+	codecs_assigned = rtp_dst->codecs_assigned;
+	OSMO_ASSERT(codecs_assigned <= MGCP_MAX_CODECS);
+	for (i = 0; i < codecs_assigned; i++) {
+		if (codecs_cmp(codec_src, &rtp_dst->codecs[i])) {
+			codec_dst = &rtp_dst->codecs[i];
+			break;
+		}
+	}
+	if (!codec_dst)
+		return -EINVAL;
+
+	return codec_dst->payload_type;
+}

src/libosmo-mgcp/mgcp_conn.c

@@ -29,24 +29,15 @@
 #include <osmocom/mgcp/mgcp_codec.h>
 #include <osmocom/gsm/gsm_utils.h>
 #include <osmocom/core/rate_ctr.h>
+#include <osmocom/core/timer.h>
 #include <ctype.h>
 
-static const struct rate_ctr_desc rate_ctr_desc[] = {
-	[IN_STREAM_ERR_TSTMP_CTR] = {"stream_err_tstmp:in", "Inbound rtp-stream timestamp errors."},
-	[OUT_STREAM_ERR_TSTMP_CTR] = {"stream_err_tstmp:out", "Outbound rtp-stream timestamp errors."},
-	[RTP_PACKETS_RX_CTR] = {"rtp:packets_rx", "Inbound rtp packets."},
-	[RTP_OCTETS_RX_CTR] = {"rtp:octets_rx", "Inbound rtp octets."},
-	[RTP_PACKETS_TX_CTR] = {"rtp:packets_tx", "Outbound rtp packets."},
-	[RTP_OCTETS_TX_CTR] = {"rtp:octets_rx", "Outbound rtp octets."},
-	[RTP_DROPPED_PACKETS_CTR] = {"rtp:dropped", "dropped rtp packets."}
-};
-
 const static struct rate_ctr_group_desc rate_ctr_group_desc = {
 	.group_name_prefix = "conn_rtp",
 	.group_description = "rtp connection statistics",
 	.class_id = 1,
-	.num_ctr = ARRAY_SIZE(rate_ctr_desc),
-	.ctr_desc = rate_ctr_desc
+	.num_ctr = ARRAY_SIZE(mgcp_conn_rate_ctr_desc),
+	.ctr_desc = mgcp_conn_rate_ctr_desc
 };
 
 
@@ -55,10 +46,11 @@ const static struct rate_ctr_group_desc rate_ctr_group_desc = {
  * memory for id) */
 static int mgcp_alloc_id(struct mgcp_endpoint *endp, char *id)
 {
+#define MGCP_CONN_ID_GEN_LEN 8
 	int i;
 	int k;
 	int rc;
-	uint8_t id_bin[16];
+	uint8_t id_bin[MGCP_CONN_ID_GEN_LEN / 2];
 	char *id_hex;
 
 	/* Generate a connection id that is unique for the current endpoint.
@@ -78,7 +70,7 @@ static int mgcp_alloc_id(struct mgcp_endpoint *endp, char *id)
 		/* ensure that the generated conn_id is unique
 		 * for this endpoint */
 		if (!mgcp_conn_get_rtp(endp, id_hex)) {
-			osmo_strlcpy(id, id_hex, MGCP_CONN_ID_LENGTH);
+			osmo_strlcpy(id, id_hex, MGCP_CONN_ID_MAXLEN);
 			return 0;
 		}
 	}
@@ -134,6 +126,23 @@ static void mgcp_rtp_conn_cleanup(struct mgcp_conn_rtp *conn_rtp)
 	rate_ctr_group_free(conn_rtp->rate_ctr_group);
 }
 
+void mgcp_conn_watchdog_cb(void *data)
+{
+	struct mgcp_conn *conn = data;
+	LOGP(DLMGCP, LOGL_ERROR, "endpoint:0x%x CI:%s connection timed out!\n", ENDPOINT_NUMBER(conn->endp), conn->id);
+	mgcp_conn_free(conn->endp, conn->id);
+}
+
+void mgcp_conn_watchdog_kick(struct mgcp_conn *conn)
+{
+	int timeout = conn->endp->cfg->conn_timeout;
+	if (!timeout)
+		return;
+
+	LOGP(DLMGCP, LOGL_DEBUG, "endpoint:0x%x CI:%s watchdog kicked\n", ENDPOINT_NUMBER(conn->endp), conn->id);
+	osmo_timer_schedule(&conn->watchdog, timeout, 0);
+}
+
 /*! allocate a new connection list entry.
  *  \param[in] ctx talloc context
  *  \param[in] endp associated endpoint
@@ -176,6 +185,9 @@ struct mgcp_conn *mgcp_conn_alloc(void *ctx, struct mgcp_endpoint *endp,
 		OSMO_ASSERT(false);
 	}
 
+	/* Initialize watchdog */
+	osmo_timer_setup(&conn->watchdog, mgcp_conn_watchdog_cb, conn);
+	mgcp_conn_watchdog_kick(conn);
 	llist_add(&conn->entry, &endp->conns);
 
 	return conn;
@@ -188,9 +200,26 @@ struct mgcp_conn *mgcp_conn_alloc(void *ctx, struct mgcp_endpoint *endp,
 struct mgcp_conn *mgcp_conn_get(struct mgcp_endpoint *endp, const char *id)
 {
 	struct mgcp_conn *conn;
+	const char *id_upper;
+	const char *conn_id;
+
+	if (!id || !*id)
+		return NULL;
+
+	/* Ignore leading zeros in needle */
+	while (*id == '0')
+		id++;
+
+	/* Use uppercase to compare identifiers, to avoid mismatches: RFC3435 2.1.3.2 "Names of
+	 * Connections" defines the id as a hex string, so clients may return lower case hex even though
+	 * we sent upper case hex in the CRCX response. */
+	id_upper = osmo_str_toupper(id);
 
 	llist_for_each_entry(conn, &endp->conns, entry) {
-		if (strncmp(conn->id, id, sizeof(conn->id)) == 0)
+		/* Ignore leading zeros in haystack */
+		for (conn_id=conn->id; *conn_id == '0'; conn_id++);
+
+		if (strcmp(conn_id, id_upper) == 0)
 			return conn;
 	}
 
@@ -216,6 +245,27 @@ struct mgcp_conn_rtp *mgcp_conn_get_rtp(struct mgcp_endpoint *endp,
 	return NULL;
 }
 
+static void
+aggregate_rtp_conn_stats(struct mgcp_trunk_config *trunk, struct mgcp_conn_rtp *conn_rtp)
+{
+	struct rate_ctr_group *all_stats = trunk->all_rtp_conn_stats;
+	struct rate_ctr_group *conn_stats = conn_rtp->rate_ctr_group;
+	int i;
+
+	if (all_stats == NULL || conn_stats == NULL)
+		return;
+
+	/* Compared to per-connection RTP statistics, aggregated RTP statistics
+	 * contain one additional rate couter item (RTP_NUM_CONNECTIONS).
+	 * All other counters in both counter groups correspond to each other. */
+	OSMO_ASSERT(conn_stats->desc->num_ctr + 1 == all_stats->desc->num_ctr);
+
+	for (i = 0; i < conn_stats->desc->num_ctr; i++)
+		rate_ctr_add(&all_stats->ctr[i], conn_stats->ctr[i].current);
+
+	rate_ctr_inc(&all_stats->ctr[RTP_NUM_CONNECTIONS]);
+}
+
 /*! free a connection by its ID.
  *  \param[in] endp associated endpoint
  *  \param[in] id identification number of the connection */
@@ -235,6 +285,7 @@ void mgcp_conn_free(struct mgcp_endpoint *endp, const char *id)
 
 	switch (conn->type) {
 	case MGCP_CONN_TYPE_RTP:
+		aggregate_rtp_conn_stats(endp->tcfg, &conn->u.rtp);
 		mgcp_rtp_conn_cleanup(&conn->u.rtp);
 		break;
 	default:
@@ -244,6 +295,7 @@ void mgcp_conn_free(struct mgcp_endpoint *endp, const char *id)
 		OSMO_ASSERT(false);
 	}
 
+	osmo_timer_del(&conn->watchdog);
 	llist_del(&conn->entry);
 	talloc_free(conn);
 }

src/libosmo-mgcp/mgcp_msg.c

@@ -219,8 +219,14 @@ static int check_domain_name(struct mgcp_config *cfg, const char *mgcp)
 	if (!domain_to_check)
 		return -EINVAL;
 
-	if (strcmp(domain_to_check+1, cfg->domain) != 0)
+	/* Accept any domain if configured as "*" */
+	if (!strcmp(cfg->domain, "*"))
+		return 0;
+
+	if (strcmp(domain_to_check+1, cfg->domain) != 0) {
+		LOGP(DLMGCP, LOGL_ERROR, "Wrong domain name '%s', expecting '%s'\n", mgcp, cfg->domain);
 		return -EINVAL;
+	}
 
 	return 0;
 }
@@ -240,7 +246,7 @@ static struct mgcp_endpoint *find_endpoint(struct mgcp_config *cfg,
 
 	/* Check if the domainname in the request is correct */
 	if (check_domain_name(cfg, mgcp)) {
-		LOGP(DLMGCP, LOGL_ERROR, "Wrong domain name '%s'\n", mgcp);
+		*cause = -500;
 		return NULL;
 	}
 
@@ -320,6 +326,7 @@ int mgcp_parse_header(struct mgcp_parse_data *pdata, char *data)
 			if (!pdata->endp) {
 				LOGP(DLMGCP, LOGL_ERROR,
 				     "Unable to find Endpoint `%s'\n", elem);
+				OSMO_ASSERT(cause < 0);
 				return cause;
 			}
 			break;
@@ -401,6 +408,11 @@ int mgcp_verify_call_id(struct mgcp_endpoint *endp, const char *callid)
 
 	if (!endp)
 		return -1;
+
+	/* Accept any CallID for "X-Osmo-IGN: C" */
+	if (endp->x_osmo_ign & MGCP_X_OSMO_IGN_CALLID)
+		return 0;
+
 	if (!callid)
 		return -1;
 	if (!endp->callid)
@@ -408,7 +420,7 @@ int mgcp_verify_call_id(struct mgcp_endpoint *endp, const char *callid)
 
 	if (strcmp(endp->callid, callid) != 0) {
 		LOGP(DLMGCP, LOGL_ERROR,
-		     "endpoint:0x%x CallIDs does not match '%s' != '%s'\n",
+		     "endpoint:0x%x CallIDs mismatch: '%s' != '%s'\n",
 		     ENDPOINT_NUMBER(endp), endp->callid, callid);
 		return -1;
 	}
@@ -419,15 +431,19 @@ int mgcp_verify_call_id(struct mgcp_endpoint *endp, const char *callid)
 /*! Check if the specified connection id seems plausible.
   * \param[in] endp pointer to endpoint
   * \param{in] connection id to verify
-  * \returns 1 when connection id seems plausible, 0 on error */
+  * \returns 0 when connection id is valid and exists, an RFC3435 error code on error.
+  */
 int mgcp_verify_ci(struct mgcp_endpoint *endp, const char *conn_id)
 {
+	/* For invalid conn_ids, return 510 "The transaction could not be executed, because some
+	 * unspecified protocol error was detected." */
+
 	/* Check for null identifiers */
 	if (!conn_id) {
 		LOGP(DLMGCP, LOGL_ERROR,
 		     "endpoint:0x%x invalid ConnectionIdentifier (missing)\n",
 		     ENDPOINT_NUMBER(endp));
-		return -1;
+		return 510;
 	}
 
 	/* Check for empty connection identifiers */
@@ -435,15 +451,15 @@ int mgcp_verify_ci(struct mgcp_endpoint *endp, const char *conn_id)
 		LOGP(DLMGCP, LOGL_ERROR,
 		     "endpoint:0x%x invalid ConnectionIdentifier (empty)\n",
 		     ENDPOINT_NUMBER(endp));
-		return -1;
+		return 510;
 	}
 
 	/* Check for over long connection identifiers */
-	if (strlen(conn_id) > MGCP_CONN_ID_LENGTH) {
+	if (strlen(conn_id) > (MGCP_CONN_ID_MAXLEN-1)) {
 		LOGP(DLMGCP, LOGL_ERROR,
-		     "endpoint:0x%x invalid ConnectionIdentifier (too long) 0x%s\n",
-		     ENDPOINT_NUMBER(endp), conn_id);
-		return -1;
+		     "endpoint:0x%x invalid ConnectionIdentifier (too long: %zu > %d) 0x%s\n",
+		     ENDPOINT_NUMBER(endp), strlen(conn_id), MGCP_CONN_ID_MAXLEN-1, conn_id);
+		return 510;
 	}
 
 	/* Check if connection exists */
@@ -454,7 +470,9 @@ int mgcp_verify_ci(struct mgcp_endpoint *endp, const char *conn_id)
 	     "endpoint:0x%x no connection found under ConnectionIdentifier 0x%s\n",
 	     ENDPOINT_NUMBER(endp), conn_id);
 
-	return -1;
+	/* When the conn_id was not found, return error code 515 "The transaction refers to an incorrect
+	 * connection-id (may have been already deleted)." */
+	return 515;
 }
 
 /*! Extract individual lines from MCGP message.

src/libosmo-mgcp/mgcp_network.c

@@ -32,7 +32,9 @@
 #include <osmocom/core/msgb.h>
 #include <osmocom/core/select.h>
 #include <osmocom/core/socket.h>
+#include <osmocom/core/byteswap.h>
 #include <osmocom/netif/rtp.h>
+#include <osmocom/netif/amr.h>
 #include <osmocom/mgcp/mgcp.h>
 #include <osmocom/mgcp/mgcp_common.h>
 #include <osmocom/mgcp/mgcp_internal.h>
@@ -40,7 +42,10 @@
 #include <osmocom/mgcp/osmux.h>
 #include <osmocom/mgcp/mgcp_conn.h>
 #include <osmocom/mgcp/mgcp_endp.h>
+#include <osmocom/mgcp/mgcp_codec.h>
 #include <osmocom/mgcp/debug.h>
+#include <osmocom/codec/codec.h>
+
 
 #define RTP_SEQ_MOD		(1 << 16)
 #define RTP_MAX_DROPOUT		3000
@@ -474,6 +479,28 @@ void mgcp_rtp_annex_count(struct mgcp_endpoint *endp,
 	state->stats.max_seq = seq;
 }
 
+/* There may be different payload type numbers negotiated for two connections.
+ * Patch the payload type of an RTP packet so that it uses the payload type
+ * that is valid for the destination connection (conn_dst) */
+static int mgcp_patch_pt(struct mgcp_conn_rtp *conn_src,
+			 struct mgcp_conn_rtp *conn_dst, char *data, int len)
+{
+	struct rtp_hdr *rtp_hdr;
+	uint8_t pt_in;
+	int pt_out;
+
+	OSMO_ASSERT(len >= sizeof(struct rtp_hdr));
+	rtp_hdr = (struct rtp_hdr *)data;
+
+	pt_in = rtp_hdr->payload_type;
+	pt_out = mgcp_codec_pt_translate(conn_src, conn_dst, pt_in);
+	if (pt_out < 0)
+		return -EINVAL;
+
+	rtp_hdr->payload_type = (uint8_t) pt_out;
+	return 0;
+}
+
 /* The RFC 3550 Appendix A assumes there are multiple sources but
  * some of the supported endpoints (e.g. the nanoBTS) can only handle
  * one source and this code will patch RTP header to appear as if there
@@ -626,6 +653,75 @@ void mgcp_patch_and_count(struct mgcp_endpoint *endp,
 #endif
 }
 
+/* There are different dialects used to format and transfer voice data. When
+ * the receiving end expects GSM-HR data to be formated after RFC 5993, this
+ * function is used to convert between RFC 5993 and TS 101318, which we normally
+ * use. */
+static void rfc5993_hr_convert(struct mgcp_endpoint *endp, char *data, int *len)
+{
+	/* NOTE: *data has an overall length of RTP_BUF_SIZE, so there is
+	 * plenty of space available to store the slightly larger, converted
+	 * data */
+
+	struct rtp_hdr *rtp_hdr;
+
+	OSMO_ASSERT(*len >= sizeof(struct rtp_hdr));
+	rtp_hdr = (struct rtp_hdr *)data;
+
+	if (*len == GSM_HR_BYTES + sizeof(struct rtp_hdr)) {
+		/* TS 101318 encoding => RFC 5993 encoding */
+		memmove(rtp_hdr->data + 1, rtp_hdr->data, GSM_HR_BYTES);
+		rtp_hdr->data[0] = 0x00;
+		(*len) += 1;
+
+	} else if (*len == GSM_HR_BYTES + sizeof(struct rtp_hdr) + 1) {
+		/* RFC 5993 encoding => TS 101318 encoding */
+		memmove(rtp_hdr->data, rtp_hdr->data + 1, GSM_HR_BYTES);
+		(*len) -= 1;
+	} else {
+		/* It is possible that multiple payloads occur in one RTP
+		 * packet. This is not supported yet. */
+		LOGP(DRTP, LOGL_ERROR,
+		     "endpoint:0x%x cannot figure out how to convert RTP packet\n",
+		     ENDPOINT_NUMBER(endp));
+	}
+}
+
+/* For AMR RTP two framing modes are defined RFC3267. There is a bandwith
+ * efficient encoding scheme where all fields are packed together one after
+ * another and an octet aligned mode where all fields are aligned to octet
+ * boundaries. This function is used to convert between the two modes */
+static void amr_oa_bwe_convert(struct mgcp_endpoint *endp, char *data, int *len)
+{
+	/* NOTE: *data has an overall length of RTP_BUF_SIZE, so there is
+	 * plenty of space available to store the slightly larger, converted
+	 * data */
+
+	struct rtp_hdr *rtp_hdr;
+	unsigned int payload_len;
+	int rc;
+
+	OSMO_ASSERT(*len >= sizeof(struct rtp_hdr));
+	rtp_hdr = (struct rtp_hdr *)data;
+
+	payload_len = *len - sizeof(struct rtp_hdr);
+
+	if (osmo_amr_is_oa(rtp_hdr->data, payload_len))
+		rc = osmo_amr_oa_to_bwe(rtp_hdr->data, payload_len);
+	else
+		rc = osmo_amr_bwe_to_oa(rtp_hdr->data, payload_len,
+					RTP_BUF_SIZE);
+
+	if (rc < 0) {
+		LOGP(DRTP, LOGL_ERROR,
+		     "endpoint:0x%x AMR RTP packet conversion failed\n",
+		     ENDPOINT_NUMBER(endp));
+		return;
+	}
+
+	*len = rc + sizeof(struct rtp_hdr);
+}
+
 /* Forward data to a debug tap. This is debug function that is intended for
  * debugging the voice traffic with tools like gstreamer */
 static void forward_data(int fd, struct mgcp_rtp_tap *tap, const char *buf,
@@ -665,6 +761,7 @@ int mgcp_send(struct mgcp_endpoint *endp, int is_rtp, struct sockaddr_in *addr,
 	struct mgcp_rtp_end *rtp_end;
 	struct mgcp_rtp_state *rtp_state;
 	char *dest_name;
+	int rc;
 
 	OSMO_ASSERT(conn_src);
 	OSMO_ASSERT(conn_dst);
@@ -684,6 +781,23 @@ int mgcp_send(struct mgcp_endpoint *endp, int is_rtp, struct sockaddr_in *addr,
 	     ENDPOINT_NUMBER(endp), tcfg->audio_loop, conn_src->conn->mode,
 	     conn_src->conn->mode == MGCP_CONN_LOOPBACK ? " (loopback)" : "");
 
+	/* FIXME: It is legal that the payload type on the egress connection is
+	 * different from the payload type that has been negotiated on the
+	 * ingress connection. Essentially the codecs are the same so we can
+	 * match them and patch the payload type. However, if we can not find
+	 * the codec pendant (everything ist equal except the PT), we are of
+	 * course unable to patch the payload type. A situation like this
+	 * should not occur if transcoding is consequently avoided. Until
+	 * we have transcoding support in osmo-mgw we can not resolve this. */
+	if (is_rtp) {
+		rc = mgcp_patch_pt(conn_src, conn_dst, buf, len);
+		if (rc < 0) {
+			LOGP(DRTP, LOGL_ERROR,
+			     "endpoint:0x%x can not patch PT because no suitable egress codec was found.\n",
+			     ENDPOINT_NUMBER(endp));
+		}
+	}
+
 	/* Note: In case of loopback configuration, both, the source and the
 	 * destination will point to the same connection. */
 	rtp_end = &conn_dst->end;
@@ -715,6 +829,17 @@ int mgcp_send(struct mgcp_endpoint *endp, int is_rtp, struct sockaddr_in *addr,
 			if (addr)
 				mgcp_patch_and_count(endp, rtp_state, rtp_end,
 						     addr, buf, buflen);
+
+			if (rtp_end->rfc5993_hr_convert
+			    && strcmp(conn_src->end.codec->subtype_name,
+				      "GSM-HR-08") == 0)
+				rfc5993_hr_convert(endp, buf, &buflen);
+
+			else if (rtp_end->amr_oa_bwe_convert
+			    && strcmp(conn_src->end.codec->subtype_name,
+				      "AMR") == 0)
+				amr_oa_bwe_convert(endp, buf, &buflen);
+
 			LOGP(DRTP, LOGL_DEBUG,
 			     "endpoint:0x%x process/send to %s %s "
 			     "rtp_port:%u rtcp_port:%u\n",
@@ -830,10 +955,37 @@ static int check_rtp_origin(struct mgcp_conn_rtp *conn,
 	struct mgcp_endpoint *endp;
 	endp = conn->conn->endp;
 
+	if (conn->end.addr.s_addr == 0) {
+		switch (conn->conn->mode) {
+		case MGCP_CONN_LOOPBACK:
+			/* HACK: for IuUP, we want to reply with an IuUP Initialization ACK upon the first RTP
+			 * message received. We currently hackishly accomplish that by putting the endpoint in
+			 * loopback mode and patching over the looped back RTP message to make it look like an
+			 * ack. We don't know the femto cell's IP address and port until the RAB Assignment
+			 * Response is received, but the nano3G expects an IuUP Initialization Ack before it even
+			 * sends the RAB Assignment Response. Hence, if the remote address is 0.0.0.0 and the
+			 * MGCP port is in loopback mode, allow looping back the packet to any source. */
+			LOGP(DRTP, LOGL_ERROR,
+			     "endpoint:0x%x In loopback mode and remote address not set:"
+			     " allowing data from address: %s\n",
+			     ENDPOINT_NUMBER(endp), inet_ntoa(addr->sin_addr));
+			return 0;
+
+		default:
+			/* Receiving early media before the endpoint is configured. Instead of logging
+			 * this as an error that occurs on every call, keep it more low profile to not
+			 * confuse humans with expected errors. */
+			LOGP(DRTP, LOGL_INFO,
+			     "endpoint:0x%x I:%s Rx RTP from %s, but remote address not set:"
+			     " dropping early media\n",
+			     ENDPOINT_NUMBER(endp), conn->conn->id, inet_ntoa(addr->sin_addr));
+			return -1;
+		}
+	}
+
 	/* Note: Check if the inbound RTP data comes from the same host to
 	 * which we send our outgoing RTP traffic. */
-	if (memcmp(&addr->sin_addr, &conn->end.addr, sizeof(addr->sin_addr))
-	    != 0) {
+	if (conn->end.addr.s_addr != addr->sin_addr.s_addr) {
 		LOGP(DRTP, LOGL_ERROR,
 		     "endpoint:0x%x data from wrong address: %s, ",
 		     ENDPOINT_NUMBER(endp), inet_ntoa(addr->sin_addr));
@@ -875,28 +1027,75 @@ static int check_rtp_destin(struct mgcp_conn_rtp *conn)
 	 * and IP-address for outgoing data. */
 	if (strcmp(inet_ntoa(conn->end.addr), "0.0.0.0") == 0 && conn->end.rtp_port == 0) {
 		LOGP(DRTP, LOGL_DEBUG,
-		     "endpoint:0x%x destination IP-address and rtp port is (not yet) known\n",
-		     ENDPOINT_NUMBER(endp));
+		     "endpoint:0x%x destination IP-address and rtp port is (not yet) known (%s:%u)\n",
+		     ENDPOINT_NUMBER(endp), inet_ntoa(conn->end.addr), conn->end.rtp_port);
 		return -1;
 	}
 
 	if (strcmp(inet_ntoa(conn->end.addr), "0.0.0.0") == 0) {
 		LOGP(DRTP, LOGL_ERROR,
-		     "endpoint:0x%x destination IP-address is invalid\n",
-		     ENDPOINT_NUMBER(endp));
+		     "endpoint:0x%x destination IP-address is invalid (%s:%u)\n",
+		     ENDPOINT_NUMBER(endp), inet_ntoa(conn->end.addr), conn->end.rtp_port);
 		return -1;
 	}
 
 	if (conn->end.rtp_port == 0) {
 		LOGP(DRTP, LOGL_ERROR,
-		     "endpoint:0x%x destination rtp port is invalid\n",
-		     ENDPOINT_NUMBER(endp));
+		     "endpoint:0x%x destination rtp port is invalid (%s:%u)\n",
+		     ENDPOINT_NUMBER(endp), inet_ntoa(conn->end.addr), conn->end.rtp_port);
 		return -1;
 	}
 
 	return 0;
 }
 
+/* Do some basic checks to make sure that the RTCP packets we are going to
+ * process are not complete garbage */
+static int check_rtcp(char *buf, unsigned int buf_size)
+{
+	struct rtcp_hdr *hdr;
+	unsigned int len;
+	uint8_t type;
+
+	/* RTPC packets that are just a header without data do not make
+	 * any sense. */
+	if (buf_size < sizeof(struct rtcp_hdr))
+		return -EINVAL;
+
+	/* Make sure that the length of the received packet does not exceed
+	 * the available buffer size */
+	hdr = (struct rtcp_hdr *)buf;
+	len = (osmo_ntohs(hdr->length) + 1) * 4;
+	if (len > buf_size)
+		return -EINVAL;
+
+	/* Make sure we accept only packets that have a proper packet type set
+	 * See also: http://www.iana.org/assignments/rtp-parameters/rtp-parameters.xhtml */
+	type = hdr->type;
+	if ((type < 192 || type > 195) && (type < 200 || type > 213))
+		return -EINVAL;
+
+	return 0;
+}
+
+/* Do some basic checks to make sure that the RTP packets we are going to
+ * process are not complete garbage */
+static int check_rtp(char *buf, unsigned int buf_size)
+{
+	/* RTP packets that are just a header without data do not make
+	 * any sense. */
+	if (buf_size < sizeof(struct rtp_hdr))
+		return -EINVAL;
+
+	/* FIXME: Add more checks, the reason why we do not check more than
+	 * the length is because we currently handle IUUP packets as RTP
+	 * packets, so they must pass this check, if we weould be more
+	 * strict here, we would possibly break 3G. (see also FIXME note
+	 * below */
+
+	return 0;
+}
+
 /* Receive RTP data from a specified source connection and dispatch it to a
  * destination connection. */
 static int mgcp_recv(int *proto, struct sockaddr_in *addr, char *buf,
@@ -917,8 +1116,29 @@ static int mgcp_recv(int *proto, struct sockaddr_in *addr, char *buf,
 	rc = receive_from(endp, fd->fd, addr, buf, buf_size);
 	if (rc <= 0)
 		return -1;
+
+	/* FIXME: The way how we detect the protocol looks odd. We should look
+	 * into the packet header. Also we should introduce a packet type
+	 * MGCP_PROTO_IUUP because currently we handle IUUP packets like RTP
+	 * packets which is problematic. */
 	*proto = fd == &conn->end.rtp ? MGCP_PROTO_RTP : MGCP_PROTO_RTCP;
 
+	if (*proto == MGCP_PROTO_RTP) {
+		if (check_rtp(buf, rc) < 0) {
+			LOGP(DRTP, LOGL_ERROR,
+			     "endpoint:0x%x invalid RTP packet received -- packet tossed\n",
+			     ENDPOINT_NUMBER(endp));
+			return -1;
+		}
+	} else if (*proto == MGCP_PROTO_RTCP) {
+		if (check_rtcp(buf, rc) < 0) {
+			LOGP(DRTP, LOGL_ERROR,
+			     "endpoint:0x%x invalid RTCP packet received -- packet tossed\n",
+			     ENDPOINT_NUMBER(endp));
+			return -1;
+		}
+	}
+
 	LOGP(DRTP, LOGL_DEBUG, "endpoint:0x%x ", ENDPOINT_NUMBER(endp));
 	LOGPC(DRTP, LOGL_DEBUG, "receiving from %s %s %d\n",
 	      conn->conn->name, inet_ntoa(addr->sin_addr),
@@ -1108,9 +1328,10 @@ static int rtp_data_net(struct osmo_fd *fd, unsigned int what)
 	if (len < 0)
 		return -1;
 
+	mgcp_conn_watchdog_kick(conn_src->conn);
+
 	/* Check if the connection is in loopback mode, if yes, just send the
 	 * incoming data back to the origin */
-
 	if (conn_src->conn->mode == MGCP_CONN_LOOPBACK) {
 		/* When we are in loopback mode, we loop back all incoming
 		 * packets back to their origin. We will use the originating

src/libosmo-mgcp/mgcp_osmux.c

@@ -316,6 +316,48 @@ static struct msgb *osmux_recv(struct osmo_fd *ofd, struct sockaddr_in *addr)
 	return msg;
 }
 
+/* Updates endp osmux state and returns 0 if it can process messages, -1 otherwise */
+static int endp_osmux_state_check(struct mgcp_endpoint *endp, struct mgcp_conn_rtp *conn,
+				  bool sending)
+{
+	switch(conn->osmux.state) {
+	case OSMUX_STATE_ACTIVATING:
+	if (osmux_enable_conn(endp, conn, &conn->end.addr, htons(endp->cfg->osmux_port)) < 0) {
+			LOGP(DLMGCP, LOGL_ERROR,
+				"Could not enable osmux for conn:%s\n",
+				mgcp_conn_dump(conn->conn));
+			return -1;
+		}
+		LOGP(DLMGCP, LOGL_ERROR,
+		    "Osmux CID %u for %s:%u is now enabled\n",
+		    conn->osmux.cid, inet_ntoa(conn->end.addr),
+		    endp->cfg->osmux_port);
+		return 0;
+	case OSMUX_STATE_ENABLED:
+		return 0;
+	default:
+		LOGP(DLMGCP, LOGL_ERROR,
+		     "Osmux %s in conn %s without full negotiation, state %d\n",
+		     sending ? "sent" : "received",
+		     mgcp_conn_dump(conn->conn), conn->osmux.state);
+		return -1;
+	}
+}
+
+static int osmux_legacy_dummy_parse_cid(struct sockaddr_in *addr, struct msgb *msg,
+					uint8_t *osmux_cid)
+{
+	if (msg->len < 1 + sizeof(osmux_cid)) {
+		LOGP(DLMGCP, LOGL_ERROR,
+		     "Discarding truncated Osmux dummy load\n");
+		return -1;
+	}
+
+	/* extract the osmux CID from the dummy message */
+	memcpy(osmux_cid, &msg->data[1], sizeof(*osmux_cid));
+	return 0;
+}
+
 #define osmux_chunk_length(msg, rem) (rem - msg->len);
 
 int osmux_read_from_bsc_nat_cb(struct osmo_fd *ofd, unsigned int what)
@@ -331,6 +373,12 @@ int osmux_read_from_bsc_nat_cb(struct osmo_fd *ofd, unsigned int what)
 	if (!msg)
 		return -1;
 
+	if (!cfg->osmux) {
+		LOGP(DLMGCP, LOGL_ERROR,
+		     "bsc-nat wants to use Osmux but bsc did not request it\n");
+		goto out;
+	}
+
 	/* not any further processing dummy messages */
 	if (msg->data[0] == MGCP_DUMMY_LOAD)
 		goto out;
@@ -346,7 +394,7 @@ int osmux_read_from_bsc_nat_cb(struct osmo_fd *ofd, unsigned int what)
 		/* FIXME: Get rid of CONN_ID_XXX! */
 		conn_bts = mgcp_conn_get_rtp(endp, CONN_ID_BTS);
 		if (!conn_bts)
-			goto out;
+			continue;
 
 		if (!endp) {
 			LOGP(DLMGCP, LOGL_ERROR,
@@ -354,12 +402,13 @@ int osmux_read_from_bsc_nat_cb(struct osmo_fd *ofd, unsigned int what)
 			     osmuxh->circuit_id);
 			goto out;
 		}
+		if (endp_osmux_state_check(endp, conn_bts, false) == 0) {
 			conn_bts->osmux.stats.octets += osmux_chunk_length(msg, rem);
 			conn_bts->osmux.stats.chunks++;
-		rem = msg->len;
-
 			osmux_xfrm_output_sched(&conn_bts->osmux.out, osmuxh);
 		}
+		rem = msg->len;
+	}
 out:
 	msgb_free(msg);
 	return 0;
@@ -367,54 +416,29 @@ out:
 
 /* This is called from the bsc-nat */
 static int osmux_handle_dummy(struct mgcp_config *cfg, struct sockaddr_in *addr,
-			      struct msgb *msg)
+			      struct msgb *msg, int endp_type)
 {
 	struct mgcp_endpoint *endp;
 	uint8_t osmux_cid;
-	struct mgcp_conn_rtp *conn_net = NULL;
+	struct mgcp_conn_rtp *conn = NULL;
 
-	if (msg->len < 1 + sizeof(osmux_cid)) {
-		LOGP(DLMGCP, LOGL_ERROR,
-		     "Discarding truncated Osmux dummy load\n");
+	if (osmux_legacy_dummy_parse_cid(addr, msg, &osmux_cid) < 0)
 		goto out;
-	}
 
-	LOGP(DLMGCP, LOGL_DEBUG, "Received Osmux dummy load from %s\n",
-	     inet_ntoa(addr->sin_addr));
-
-	if (!cfg->osmux) {
-		LOGP(DLMGCP, LOGL_ERROR,
-		     "bsc wants to use Osmux but bsc-nat did not request it\n");
-		goto out;
-	}
-
-	/* extract the osmux CID from the dummy message */
-	memcpy(&osmux_cid, &msg->data[1], sizeof(osmux_cid));
-
-	endp = endpoint_lookup(cfg, osmux_cid, &addr->sin_addr, MGCP_DEST_BTS);
+	endp = endpoint_lookup(cfg, osmux_cid, &addr->sin_addr, endp_type);
 	if (!endp) {
 		LOGP(DLMGCP, LOGL_ERROR,
 		     "Cannot find endpoint for Osmux CID %d\n", osmux_cid);
 		goto out;
 	}
 
-	conn_net = mgcp_conn_get_rtp(endp, CONN_ID_NET);
-	if (!conn_net)
+	/* FIXME: Get rid of CONN_ID_XXX! */
+	conn = mgcp_conn_get_rtp(endp, endp_type == MGCP_DEST_BTS ? CONN_ID_NET : CONN_ID_BTS);
+	if (!conn)
 		goto out;
 
-	if (conn_net->osmux.state == OSMUX_STATE_ENABLED)
-		goto out;
-
-	if (osmux_enable_conn(endp, conn_net, &addr->sin_addr, addr->sin_port) < 0 ) {
-		LOGP(DLMGCP, LOGL_ERROR,
-		     "Could not enable osmux in endpoint %d\n",
-		     ENDPOINT_NUMBER(endp));
-		goto out;
-	}
-
-	LOGP(DLMGCP, LOGL_INFO, "Enabling osmux in endpoint %d for %s:%u\n",
-	     ENDPOINT_NUMBER(endp), inet_ntoa(addr->sin_addr),
-	     ntohs(addr->sin_port));
+	endp_osmux_state_check(endp, conn, false);
+	/* Only needed to punch hole in firewall, it can be dropped */
 out:
 	msgb_free(msg);
 	return 0;
@@ -433,9 +457,15 @@ int osmux_read_from_bsc_cb(struct osmo_fd *ofd, unsigned int what)
 	if (!msg)
 		return -1;
 
+	if (!cfg->osmux) {
+		LOGP(DLMGCP, LOGL_ERROR,
+		     "bsc wants to use Osmux but bsc-nat did not request it\n");
+		goto out;
+	}
+
 	/* not any further processing dummy messages */
 	if (msg->data[0] == MGCP_DUMMY_LOAD)
-		return osmux_handle_dummy(cfg, &addr, msg);
+		return osmux_handle_dummy(cfg, &addr, msg, MGCP_DEST_BTS);
 
 	rem = msg->len;
 	while((osmuxh = osmux_xfrm_output_pull(msg)) != NULL) {
@@ -448,7 +478,7 @@ int osmux_read_from_bsc_cb(struct osmo_fd *ofd, unsigned int what)
 		/* FIXME: Get rid of CONN_ID_XXX! */
 		conn_net = mgcp_conn_get_rtp(endp, CONN_ID_NET);
 		if (!conn_net)
-			goto out;
+			continue;
 
 		if (!endp) {
 			LOGP(DLMGCP, LOGL_ERROR,
@@ -456,12 +486,13 @@ int osmux_read_from_bsc_cb(struct osmo_fd *ofd, unsigned int what)
 			     osmuxh->circuit_id);
 			goto out;
 		}
+		if (endp_osmux_state_check(endp, conn_net, false) == 0) {
 			conn_net->osmux.stats.octets += osmux_chunk_length(msg, rem);
 			conn_net->osmux.stats.chunks++;
-		rem = msg->len;
-
 			osmux_xfrm_output_sched(&conn_net->osmux.out, osmuxh);
 		}
+		rem = msg->len;
+	}
 out:
 	msgb_free(msg);
 	return 0;
@@ -515,25 +546,21 @@ int osmux_enable_conn(struct mgcp_endpoint *endp, struct mgcp_conn_rtp *conn,
 	 *  used to reconstruct the RTP flow from osmux. The RTP SSRC is
 	 *  allocated based on the circuit ID (conn_net->osmux.cid), which is unique
 	 *  in the local scope to the BSC/BSC-NAT. We use it to divide the RTP
-	 *  SSRC space (2^32) by the 256 possible circuit IDs, then randomly
+	 *  SSRC space (2^32) by the OSMUX_CID_MAX + 1 possible circuit IDs, then randomly
 	 *  select one value from that window. Thus, we have no chance to have
 	 *  overlapping RTP SSRC traveling to the BTSes behind the BSC,
 	 *  similarly, for flows traveling to the MSC.
 	 */
-	static const uint32_t rtp_ssrc_winlen = UINT32_MAX / 256;
+	static const uint32_t rtp_ssrc_winlen = UINT32_MAX / (OSMUX_CID_MAX + 1);
 	uint16_t osmux_dummy = endp->cfg->osmux_dummy;
 
 	/* Check if osmux is enabled for the specified connection */
-	if (conn->osmux.state == OSMUX_STATE_DISABLED) {
-		LOGP(DLMGCP, LOGL_ERROR, "OSMUX not enabled for conn:%s\n",
-		     mgcp_conn_dump(conn->conn));
+	if (conn->osmux.state != OSMUX_STATE_ACTIVATING) {
+		LOGP(DLMGCP, LOGL_ERROR, "conn:%s didn't negotiate Osmux, state %d\n",
+		     mgcp_conn_dump(conn->conn), conn->osmux.state);
 		return -1;
 	}
 
-	osmux_xfrm_output_init(&conn->osmux.out,
-			       (conn->osmux.cid * rtp_ssrc_winlen) +
-			       (random() % rtp_ssrc_winlen));
-
 	conn->osmux.in = osmux_handle_lookup(endp->cfg, addr, port);
 	if (!conn->osmux.in) {
 		LOGP(DLMGCP, LOGL_ERROR, "Cannot allocate input osmux handle for conn:%s\n",
@@ -546,6 +573,10 @@ int osmux_enable_conn(struct mgcp_endpoint *endp, struct mgcp_conn_rtp *conn,
 		return -1;
 	}
 
+	osmux_xfrm_output_init(&conn->osmux.out,
+			       (conn->osmux.cid * rtp_ssrc_winlen) +
+			       (random() % rtp_ssrc_winlen));
+
 	switch (endp->cfg->role) {
 		case MGCP_BSC_NAT:
 			conn->type = MGCP_OSMUX_BSC_NAT;
@@ -635,18 +666,9 @@ int osmux_send_dummy(struct mgcp_endpoint *endp, struct mgcp_conn_rtp *conn)
 	if (memcmp(&conn->end.addr, &addr_unset, sizeof(addr_unset)) == 0)
 		return 0;
 
-	if (conn->osmux.state == OSMUX_STATE_ACTIVATING) {
-		if (osmux_enable_conn(endp, conn, &conn->end.addr,
-				      htons(endp->cfg->osmux_port)) < 0) {
-			LOGP(DLMGCP, LOGL_ERROR,
-			     "Could not activate osmux for conn:%s\n",
-			     mgcp_conn_dump(conn->conn));
-		}
-		LOGP(DLMGCP, LOGL_ERROR,
-		     "Osmux CID %u for %s:%u is now enabled\n",
-		     conn->osmux.cid, inet_ntoa(conn->end.addr),
-		     endp->cfg->osmux_port);
-	}
+	if (endp_osmux_state_check(endp, conn, true) < 0)
+		return 0;
+
 	LOGP(DLMGCP, LOGL_DEBUG,
 	     "sending OSMUX dummy load to %s CID %u\n",
 	     inet_ntoa(conn->end.addr), conn->osmux.cid);
@@ -655,8 +677,8 @@ int osmux_send_dummy(struct mgcp_endpoint *endp, struct mgcp_conn_rtp *conn)
 			     htons(endp->cfg->osmux_port), buf, sizeof(buf));
 }
 
-/*! bsc-nat allocates/releases the OSMUX cids (Circuit IDs). */
-static uint8_t osmux_cid_bitmap[(OSMUX_CID_MAX + 1) / 8];
+/* bsc-nat allocates/releases the Osmux circuit ID. +7 to round up to 8 bit boundary. */
+static uint8_t osmux_cid_bitmap[(OSMUX_CID_MAX + 1 + 7) / 8];
 
 /*! count the number of taken OSMUX cids.
  *  \returns number of OSMUX cids in use */

src/libosmo-mgcp/mgcp_protocol.c

@@ -32,6 +32,7 @@
 #include <osmocom/core/msgb.h>
 #include <osmocom/core/talloc.h>
 #include <osmocom/core/select.h>
+#include <osmocom/core/stats.h>
 
 #include <osmocom/mgcp/mgcp.h>
 #include <osmocom/mgcp/mgcp_common.h>
@@ -41,6 +42,7 @@
 #include <osmocom/mgcp/mgcp_endp.h>
 #include <osmocom/mgcp/mgcp_sdp.h>
 #include <osmocom/mgcp/mgcp_codec.h>
+#include <osmocom/mgcp/mgcp_conn.h>
 
 struct mgcp_request {
 	char *name;
@@ -51,6 +53,84 @@ struct mgcp_request {
 #define MGCP_REQUEST(NAME, REQ, DEBUG_NAME) \
 	{ .name = NAME, .handle_request = REQ, .debug_name = DEBUG_NAME },
 
+static const struct rate_ctr_desc mgcp_crcx_ctr_desc[] = {
+	[MGCP_CRCX_SUCCESS] = {"crcx:success", "CRCX command processed successfully."},
+	[MGCP_CRCX_FAIL_BAD_ACTION] = {"crcx:bad_action", "bad action in CRCX command."},
+	[MGCP_CRCX_FAIL_UNHANDLED_PARAM] = {"crcx:unhandled_param", "unhandled parameter in CRCX command."},
+	[MGCP_CRCX_FAIL_MISSING_CALLID] = {"crcx:missing_callid", "missing CallId in CRCX command."},
+	[MGCP_CRCX_FAIL_INVALID_MODE] = {"crcx:invalid_mode", "invalid connection mode in CRCX command."},
+	[MGCP_CRCX_FAIL_LIMIT_EXCEEDED] = {"crcx:limit_exceeded", "limit of concurrent connections was reached."},
+	[MGCP_CRCX_FAIL_UNKNOWN_CALLID] = {"crcx:unkown_callid", "unknown CallId in CRCX command."},
+	[MGCP_CRCX_FAIL_ALLOC_CONN] = {"crcx:alloc_conn_fail", "connection allocation failure."},
+	[MGCP_CRCX_FAIL_NO_REMOTE_CONN_DESC] = {"crcx:no_remote_conn_desc", "no opposite end specified for connection."},
+	[MGCP_CRCX_FAIL_START_RTP] = {"crcx:start_rtp_failure", "failure to start RTP processing."},
+	[MGCP_CRCX_FAIL_REJECTED_BY_POLICY] = {"crcx:conn_rejected", "connection rejected by policy."},
+	[MGCP_CRCX_FAIL_NO_OSMUX] = {"crcx:no_osmux", "no osmux offered by peer."},
+	[MGCP_CRCX_FAIL_INVALID_CONN_OPTIONS] = {"crcx:conn_opt", "connection options invalid."},
+	[MGCP_CRCX_FAIL_CODEC_NEGOTIATION] = {"crcx:codec_nego", "codec negotiation failure."},
+	[MGCP_CRCX_FAIL_BIND_PORT] = {"crcx:bind_port", "port bind failure."},
+};
+
+const static struct rate_ctr_group_desc mgcp_crcx_ctr_group_desc = {
+	.group_name_prefix = "crcx",
+	.group_description = "crxc statistics",
+	.class_id = OSMO_STATS_CLASS_GLOBAL,
+	.num_ctr = ARRAY_SIZE(mgcp_crcx_ctr_desc),
+	.ctr_desc = mgcp_crcx_ctr_desc
+};
+
+static const struct rate_ctr_desc mgcp_mdcx_ctr_desc[] = {
+	[MGCP_MDCX_SUCCESS] = {"mdcx:success", "MDCX command processed successfully."},
+	[MGCP_MDCX_FAIL_WILDCARD] = {"mdcx:wildcard", "wildcard endpoint names in MDCX commands are unsupported."},
+	[MGCP_MDCX_FAIL_NO_CONN] = {"mdcx:no_conn", "endpoint specified in MDCX command has no active connections."},
+	[MGCP_MDCX_FAIL_INVALID_CALLID] = {"mdcx:callid", "invalid CallId specified in MDCX command."},
+	[MGCP_MDCX_FAIL_INVALID_CONNID] = {"mdcx:connid", "invalid connection ID specified in MDCX command."},
+	[MGCP_MDCX_FAIL_UNHANDLED_PARAM] = {"crcx:unhandled_param", "unhandled parameter in MDCX command."},
+	[MGCP_MDCX_FAIL_NO_CONNID] = {"mdcx:no_connid", "no connection ID specified in MDCX command."},
+	[MGCP_MDCX_FAIL_CONN_NOT_FOUND] = {"mdcx:conn_not_found", "connection specified in MDCX command does not exist."},
+	[MGCP_MDCX_FAIL_INVALID_MODE] = {"mdcx:invalid_mode", "invalid connection mode in MDCX command."},
+	[MGCP_MDCX_FAIL_INVALID_CONN_OPTIONS] = {"mdcx:conn_opt", "connection options invalid."},
+	[MGCP_MDCX_FAIL_NO_REMOTE_CONN_DESC] = {"mdcx:no_remote_conn_desc", "no opposite end specified for connection."},
+	[MGCP_MDCX_FAIL_START_RTP] = {"mdcx:start_rtp_failure", "failure to start RTP processing."},
+	[MGCP_MDCX_FAIL_REJECTED_BY_POLICY] = {"mdcx:conn_rejected", "connection rejected by policy."},
+	[MGCP_MDCX_DEFERRED_BY_POLICY] = {"mdcx:conn_deferred", "connection deferred by policy."},
+};
+
+const static struct rate_ctr_group_desc mgcp_mdcx_ctr_group_desc = {
+	.group_name_prefix = "mdcx",
+	.group_description = "mdcx statistics",
+	.class_id = OSMO_STATS_CLASS_GLOBAL,
+	.num_ctr = ARRAY_SIZE(mgcp_mdcx_ctr_desc),
+	.ctr_desc = mgcp_mdcx_ctr_desc
+};
+
+static const struct rate_ctr_desc mgcp_dlcx_ctr_desc[] = {
+	[MGCP_DLCX_SUCCESS] = {"dlcx:success", "DLCX command processed successfully."},
+	[MGCP_DLCX_FAIL_WILDCARD] = {"dlcx:wildcard", "wildcard names in DLCX commands are unsupported."},
+	[MGCP_DLCX_FAIL_NO_CONN] = {"dlcx:no_conn", "endpoint specified in DLCX command has no active connections."},
+	[MGCP_DLCX_FAIL_INVALID_CALLID] = {"dlcx:callid", "CallId specified in DLCX command mismatches endpoint's CallId ."},
+	[MGCP_DLCX_FAIL_INVALID_CONNID] = {"dlcx:connid", "connection ID specified in DLCX command does not exist on endpoint."},
+	[MGCP_DLCX_FAIL_UNHANDLED_PARAM] = {"dlcx:unhandled_param", "unhandled parameter in DLCX command."},
+	[MGCP_DLCX_FAIL_REJECTED_BY_POLICY] = {"dlcx:rejected", "connection deletion rejected by policy."},
+	[MGCP_DLCX_DEFERRED_BY_POLICY] = {"dlcx:deferred", "connection deletion deferred by policy."},
+};
+
+const static struct rate_ctr_group_desc mgcp_dlcx_ctr_group_desc = {
+	.group_name_prefix = "dlcx",
+	.group_description = "dlcx statistics",
+	.class_id = OSMO_STATS_CLASS_GLOBAL,
+	.num_ctr = ARRAY_SIZE(mgcp_dlcx_ctr_desc),
+	.ctr_desc = mgcp_dlcx_ctr_desc
+};
+
+const static struct rate_ctr_group_desc all_rtp_conn_rate_ctr_group_desc = {
+	.group_name_prefix = "all_rtp_conn",
+	.group_description = "aggregated statistics for all rtp connections",
+	.class_id = 1,
+	.num_ctr = ARRAY_SIZE(all_rtp_conn_rate_ctr_desc),
+	.ctr_desc = all_rtp_conn_rate_ctr_desc
+};
+
 static struct msgb *handle_audit_endpoint(struct mgcp_parse_data *data);
 static struct msgb *handle_create_con(struct mgcp_parse_data *data);
 static struct msgb *handle_delete_con(struct mgcp_parse_data *data);
@@ -518,7 +598,7 @@ static int set_local_cx_options(void *ctx, struct mgcp_lco *lco,
 				 const char *options)
 {
 	char *p_opt, *a_opt;
-	char codec[9];
+	char codec[17];
 
 	if (!options)
 		return 0;
@@ -544,7 +624,7 @@ static int set_local_cx_options(void *ctx, struct mgcp_lco *lco,
 	 * (e.g. a:PCMU;G726-32) But this implementation only supports a single
 	 * codec only. */
 	a_opt = strstr(lco->string, "a:");
-	if (a_opt && sscanf(a_opt, "a:%8[^,]", codec) == 1) {
+	if (a_opt && sscanf(a_opt, "a:%16[^,]", codec) == 1) {
 		talloc_free(lco->codec);
 		lco->codec = talloc_strdup(ctx, codec);
 	}
@@ -572,6 +652,8 @@ void mgcp_rtp_end_config(struct mgcp_endpoint *endp, int expect_ssrc_change,
 
 	rtp->force_aligned_timing = tcfg->force_aligned_timing;
 	rtp->force_constant_ssrc = patch_ssrc ? 1 : 0;
+	rtp->rfc5993_hr_convert = tcfg->rfc5993_hr_convert;
+	rtp->amr_oa_bwe_convert = tcfg->amr_oa_bwe_convert;
 
 	LOGP(DLMGCP, LOGL_DEBUG,
 	     "Configuring RTP endpoint: local port %d%s%s\n",
@@ -674,13 +756,37 @@ error:
 	return 534;
 }
 
+static bool parse_x_osmo_ign(struct mgcp_endpoint *endp, char *line)
+{
+	char *saveptr = NULL;
+
+	if (strncmp(line, MGCP_X_OSMO_IGN_HEADER, strlen(MGCP_X_OSMO_IGN_HEADER)))
+		return false;
+	line += strlen(MGCP_X_OSMO_IGN_HEADER);
+
+	while (1) {
+		char *token = strtok_r(line, " ", &saveptr);
+		line = NULL;
+		if (!token)
+			break;
+
+		if (!strcmp(token, "C"))
+			endp->x_osmo_ign |= MGCP_X_OSMO_IGN_CALLID;
+		else
+			LOGP(DLMGCP, LOGL_ERROR, "endpoint 0x%x: received unknown X-Osmo-IGN item '%s'\n",
+			     ENDPOINT_NUMBER(endp), token);
+	}
+
+	return true;
+}
+
 /* CRCX command handler, processes the received command */
 static struct msgb *handle_create_con(struct mgcp_parse_data *p)
 {
-	struct mgcp_trunk_config *tcfg;
+	struct mgcp_trunk_config *tcfg = p->endp->tcfg;
 	struct mgcp_endpoint *endp = p->endp;
+	struct rate_ctr_group *rate_ctrs = tcfg->mgcp_crcx_ctr_group;
 	int error_code = 400;
-
 	const char *local_options = NULL;
 	const char *callid = NULL;
 	const char *mode = NULL;
@@ -709,19 +815,26 @@ static struct msgb *handle_create_con(struct mgcp_parse_data *p)
 			/* It is illegal to send a connection identifier
 			 * together with a CRCX, the MGW will assign the
 			 * connection identifier by itself on CRCX */
+			rate_ctr_inc(&rate_ctrs->ctr[MGCP_CRCX_FAIL_BAD_ACTION]);
 			return create_err_response(NULL, 523, "CRCX", p->trans);
 			break;
 		case 'M':
 			mode = (const char *)line + 3;
 			break;
 		case 'X':
-			/* If osmoux is disabled, just skip setting it up */
+			if (strncmp("Osmux: ", line + 2, strlen("Osmux: ")) == 0) {
+				/* If osmux is disabled, just skip setting it up */
 				if (!p->endp->cfg->osmux)
 					break;
-			if (strncmp("Osmux: ", line + 2, strlen("Osmux: ")) ==
-			    0)
 				osmux_cid = mgcp_osmux_setup(endp, line);
 				break;
+			}
+
+			if (parse_x_osmo_ign(endp, line))
+				break;
+
+			/* Ignore unknown X-headers */
+			break;
 		case '\0':
 			have_sdp = 1;
 			goto mgcp_header_done;
@@ -729,19 +842,19 @@ static struct msgb *handle_create_con(struct mgcp_parse_data *p)
 			LOGP(DLMGCP, LOGL_NOTICE,
 			     "CRCX: endpoint:%x unhandled option: '%c'/%d\n",
 			     ENDPOINT_NUMBER(endp), *line, *line);
+			rate_ctr_inc(&rate_ctrs->ctr[MGCP_CRCX_FAIL_UNHANDLED_PARAM]);
 			return create_err_response(NULL, 539, "CRCX", p->trans);
 			break;
 		}
 	}
 
 mgcp_header_done:
-	tcfg = p->endp->tcfg;
-
 	/* Check parameters */
 	if (!callid) {
 		LOGP(DLMGCP, LOGL_ERROR,
 		     "CRCX: endpoint:%x insufficient parameters, missing callid\n",
 		     ENDPOINT_NUMBER(endp));
+		rate_ctr_inc(&rate_ctrs->ctr[MGCP_CRCX_FAIL_MISSING_CALLID]);
 		return create_err_response(endp, 516, "CRCX", p->trans);
 	}
 
@@ -749,6 +862,7 @@ mgcp_header_done:
 		LOGP(DLMGCP, LOGL_ERROR,
 		     "CRCX: endpoint:%x insufficient parameters, missing mode\n",
 		     ENDPOINT_NUMBER(endp));
+		rate_ctr_inc(&rate_ctrs->ctr[MGCP_CRCX_FAIL_INVALID_MODE]);
 		return create_err_response(endp, 517, "CRCX", p->trans);
 	}
 
@@ -765,6 +879,7 @@ mgcp_header_done:
 		} else {
 			/* There is no more room for a connection, leave
 			 * everything as it is and return with an error */
+			rate_ctr_inc(&rate_ctrs->ctr[MGCP_CRCX_FAIL_LIMIT_EXCEEDED]);
 			return create_err_response(endp, 540, "CRCX", p->trans);
 		}
 	}
@@ -782,6 +897,7 @@ mgcp_header_done:
 		else {
 			/* This is not our call, leave everything as it is and
 			 * return with an error. */
+			rate_ctr_inc(&rate_ctrs->ctr[MGCP_CRCX_FAIL_UNKNOWN_CALLID]);
 			return create_err_response(endp, 400, "CRCX", p->trans);
 		}
 	}
@@ -797,6 +913,7 @@ mgcp_header_done:
 		LOGP(DLMGCP, LOGL_ERROR,
 		     "CRCX: endpoint:0x%x unable to allocate RTP connection\n",
 		     ENDPOINT_NUMBER(endp));
+		rate_ctr_inc(&rate_ctrs->ctr[MGCP_CRCX_FAIL_ALLOC_CONN]);
 		goto error2;
 
 	}
@@ -805,6 +922,7 @@ mgcp_header_done:
 
 	if (mgcp_parse_conn_mode(mode, endp, conn->conn) != 0) {
 		error_code = 517;
+		rate_ctr_inc(&rate_ctrs->ctr[MGCP_CRCX_FAIL_INVALID_MODE]);
 		goto error2;
 	}
 
@@ -818,6 +936,7 @@ mgcp_header_done:
 		LOGP(DLMGCP, LOGL_ERROR,
 		     "CRCX: endpoint:0x%x osmux only and no osmux offered\n",
 		     ENDPOINT_NUMBER(endp));
+		rate_ctr_inc(&rate_ctrs->ctr[MGCP_CRCX_FAIL_NO_OSMUX]);
 		goto error2;
 	}
 
@@ -830,6 +949,7 @@ mgcp_header_done:
 			     "CRCX: endpoint:%x inavlid local connection options!\n",
 			     ENDPOINT_NUMBER(endp));
 			error_code = rc;
+			rate_ctr_inc(&rate_ctrs->ctr[MGCP_CRCX_FAIL_INVALID_CONN_OPTIONS]);
 			goto error2;
 		}
 	}
@@ -839,6 +959,7 @@ mgcp_header_done:
 	mgcp_codec_summary(conn);
 	if (rc) {
 		error_code = rc;
+		rate_ctr_inc(&rate_ctrs->ctr[MGCP_CRCX_FAIL_CODEC_NEGOTIATION]);
 		goto error2;
 	}
 
@@ -860,10 +981,12 @@ mgcp_header_done:
 		     "CRCX: endpoint:%x selected connection mode type requires an opposite end!\n",
 		     ENDPOINT_NUMBER(endp));
 		error_code = 527;
+		rate_ctr_inc(&rate_ctrs->ctr[MGCP_CRCX_FAIL_NO_REMOTE_CONN_DESC]);
 		goto error2;
 	}
 
 	if (allocate_port(endp, conn) != 0) {
+		rate_ctr_inc(&rate_ctrs->ctr[MGCP_CRCX_FAIL_BIND_PORT]);
 		goto error2;
 	}
 
@@ -871,6 +994,7 @@ mgcp_header_done:
 		LOGP(DLMGCP, LOGL_ERROR,
 		     "CRCX: endpoint:0x%x could not start RTP processing!\n",
 		     ENDPOINT_NUMBER(endp));
+		rate_ctr_inc(&rate_ctrs->ctr[MGCP_CRCX_FAIL_START_RTP]);
 		goto error2;
 	}
 
@@ -885,6 +1009,7 @@ mgcp_header_done:
 			     "CRCX: endpoint:0x%x CRCX rejected by policy\n",
 			     ENDPOINT_NUMBER(endp));
 			mgcp_endp_release(endp);
+			rate_ctr_inc(&rate_ctrs->ctr[MGCP_CRCX_FAIL_REJECTED_BY_POLICY]);
 			return create_err_response(endp, 400, "CRCX", p->trans);
 			break;
 		case MGCP_POLICY_DEFER:
@@ -912,6 +1037,7 @@ mgcp_header_done:
 	LOGP(DLMGCP, LOGL_NOTICE,
 	     "CRCX: endpoint:0x%x connection successfully created\n",
 	     ENDPOINT_NUMBER(endp));
+	rate_ctr_inc(&rate_ctrs->ctr[MGCP_CRCX_SUCCESS]);
 	return create_response_with_sdp(endp, conn, "CRCX", p->trans, true);
 error2:
 	mgcp_endp_release(endp);
@@ -928,7 +1054,9 @@ error2:
 /* MDCX command handler, processes the received command */
 static struct msgb *handle_modify_con(struct mgcp_parse_data *p)
 {
+	struct mgcp_trunk_config *tcfg = p->endp->tcfg;
 	struct mgcp_endpoint *endp = p->endp;
+	struct rate_ctr_group *rate_ctrs = tcfg->mgcp_mdcx_ctr_group;
 	int error_code = 500;
 	int silent = 0;
 	int have_sdp = 0;
@@ -946,6 +1074,7 @@ static struct msgb *handle_modify_con(struct mgcp_parse_data *p)
 		LOGP(DLMGCP, LOGL_ERROR,
 		     "MDCX: endpoint:0x%x wildcarded endpoint names not supported.\n",
 		     ENDPOINT_NUMBER(endp));
+		rate_ctr_inc(&rate_ctrs->ctr[MGCP_MDCX_FAIL_WILDCARD]);
 		return create_err_response(endp, 507, "MDCX", p->trans);
 	}
 
@@ -953,6 +1082,7 @@ static struct msgb *handle_modify_con(struct mgcp_parse_data *p)
 		LOGP(DLMGCP, LOGL_ERROR,
 		     "MDCX: endpoint:0x%x endpoint is not holding a connection.\n",
 		     ENDPOINT_NUMBER(endp));
+		rate_ctr_inc(&rate_ctrs->ctr[MGCP_MDCX_FAIL_NO_CONN]);
 		return create_err_response(endp, 400, "MDCX", p->trans);
 	}
 
@@ -963,14 +1093,15 @@ static struct msgb *handle_modify_con(struct mgcp_parse_data *p)
 		switch (line[0]) {
 		case 'C':
 			if (mgcp_verify_call_id(endp, line + 3) != 0) {
+				rate_ctr_inc(&rate_ctrs->ctr[MGCP_MDCX_FAIL_INVALID_CALLID]);
 				error_code = 516;
 				goto error3;
 			}
 			break;
 		case 'I':
 			conn_id = (const char *)line + 3;
-			if (mgcp_verify_ci(endp, conn_id) != 0) {
-				error_code = 515;
+			if ((error_code = mgcp_verify_ci(endp, conn_id))) {
+				rate_ctr_inc(&rate_ctrs->ctr[MGCP_MDCX_FAIL_INVALID_CONNID]);
 				goto error3;
 			}
 			break;
@@ -991,6 +1122,7 @@ static struct msgb *handle_modify_con(struct mgcp_parse_data *p)
 			LOGP(DLMGCP, LOGL_NOTICE,
 			     "MDCX: endpoint:0x%x Unhandled MGCP option: '%c'/%d\n",
 			     ENDPOINT_NUMBER(endp), line[0], line[0]);
+			rate_ctr_inc(&rate_ctrs->ctr[MGCP_MDCX_FAIL_UNHANDLED_PARAM]);
 			return create_err_response(NULL, 539, "MDCX", p->trans);
 			break;
 		}
@@ -1001,15 +1133,21 @@ mgcp_header_done:
 		LOGP(DLMGCP, LOGL_ERROR,
 		     "MDCX: endpoint:0x%x insufficient parameters, missing ci (connectionIdentifier)\n",
 		     ENDPOINT_NUMBER(endp));
+		rate_ctr_inc(&rate_ctrs->ctr[MGCP_MDCX_FAIL_NO_CONNID]);
 		return create_err_response(endp, 515, "MDCX", p->trans);
 	}
 
 	conn = mgcp_conn_get_rtp(endp, conn_id);
-	if (!conn)
+	if (!conn) {
+		rate_ctr_inc(&rate_ctrs->ctr[MGCP_MDCX_FAIL_CONN_NOT_FOUND]);
 		return create_err_response(endp, 400, "MDCX", p->trans);
+	}
+
+	mgcp_conn_watchdog_kick(conn->conn);
 
 	if (mode) {
 		if (mgcp_parse_conn_mode(mode, endp, conn->conn) != 0) {
+			rate_ctr_inc(&rate_ctrs->ctr[MGCP_MDCX_FAIL_INVALID_MODE]);
 			error_code = 517;
 			goto error3;
 		}
@@ -1022,9 +1160,10 @@ mgcp_header_done:
 					  &endp->local_options, local_options);
 		if (rc != 0) {
 			LOGP(DLMGCP, LOGL_ERROR,
-			     "MDCX: endpoint:%x inavlid local connection options!\n",
+			     "MDCX: endpoint:%x invalid local connection options!\n",
 			     ENDPOINT_NUMBER(endp));
 			error_code = rc;
+			rate_ctr_inc(&rate_ctrs->ctr[MGCP_MDCX_FAIL_INVALID_CONN_OPTIONS]);
 			goto error3;
 		}
 	}
@@ -1045,12 +1184,15 @@ mgcp_header_done:
 		     "MDCX: endpoint:%x selected connection mode type requires an opposite end!\n",
 		     ENDPOINT_NUMBER(endp));
 		error_code = 527;
+		rate_ctr_inc(&rate_ctrs->ctr[MGCP_MDCX_FAIL_NO_REMOTE_CONN_DESC]);
 		goto error3;
 	}
 
 
-	if (setup_rtp_processing(endp, conn) != 0)
+	if (setup_rtp_processing(endp, conn) != 0) {
+		rate_ctr_inc(&rate_ctrs->ctr[MGCP_MDCX_FAIL_START_RTP]);
 		goto error3;
+	}
 
 
 	/* policy CB */
@@ -1063,6 +1205,7 @@ mgcp_header_done:
 			LOGP(DLMGCP, LOGL_NOTICE,
 			     "MDCX: endpoint:0x%x rejected by policy\n",
 			     ENDPOINT_NUMBER(endp));
+			rate_ctr_inc(&rate_ctrs->ctr[MGCP_MDCX_FAIL_REJECTED_BY_POLICY]);
 			if (silent)
 				goto out_silent;
 			return create_err_response(endp, 400, "MDCX", p->trans);
@@ -1070,8 +1213,9 @@ mgcp_header_done:
 		case MGCP_POLICY_DEFER:
 			/* stop processing */
 			LOGP(DLMGCP, LOGL_DEBUG,
-			     "MDCX: endpoint:0x%x defered by policy\n",
+			     "MDCX: endpoint:0x%x deferred by policy\n",
 			     ENDPOINT_NUMBER(endp));
+			rate_ctr_inc(&rate_ctrs->ctr[MGCP_MDCX_DEFERRED_BY_POLICY]);
 			return NULL;
 			break;
 		case MGCP_POLICY_CONT:
@@ -1096,6 +1240,7 @@ mgcp_header_done:
 	    && endp->tcfg->keepalive_interval != MGCP_KEEPALIVE_NEVER)
 		send_dummy(endp, conn);
 
+	rate_ctr_inc(&rate_ctrs->ctr[MGCP_MDCX_SUCCESS]);
 	if (silent)
 		goto out_silent;
 
@@ -1115,7 +1260,9 @@ out_silent:
 /* DLCX command handler, processes the received command */
 static struct msgb *handle_delete_con(struct mgcp_parse_data *p)
 {
+	struct mgcp_trunk_config *tcfg = p->endp->tcfg;
 	struct mgcp_endpoint *endp = p->endp;
+	struct rate_ctr_group *rate_ctrs = tcfg->mgcp_dlcx_ctr_group;
 	int error_code = 400;
 	int silent = 0;
 	char *line;
@@ -1132,6 +1279,7 @@ static struct msgb *handle_delete_con(struct mgcp_parse_data *p)
 		LOGP(DLMGCP, LOGL_ERROR,
 		     "DLCX: endpoint:0x%x wildcarded endpoint names not supported.\n",
 		     ENDPOINT_NUMBER(endp));
+		rate_ctr_inc(&rate_ctrs->ctr[MGCP_DLCX_FAIL_WILDCARD]);
 		return create_err_response(endp, 507, "DLCX", p->trans);
 	}
 
@@ -1139,6 +1287,7 @@ static struct msgb *handle_delete_con(struct mgcp_parse_data *p)
 		LOGP(DLMGCP, LOGL_ERROR,
 		     "DLCX: endpoint:0x%x endpoint is not holding a connection.\n",
 		     ENDPOINT_NUMBER(endp));
+		rate_ctr_inc(&rate_ctrs->ctr[MGCP_DLCX_FAIL_NO_CONN]);
 		return create_err_response(endp, 515, "DLCX", p->trans);
 	}
 
@@ -1150,13 +1299,14 @@ static struct msgb *handle_delete_con(struct mgcp_parse_data *p)
 		case 'C':
 			if (mgcp_verify_call_id(endp, line + 3) != 0) {
 				error_code = 516;
+				rate_ctr_inc(&rate_ctrs->ctr[MGCP_DLCX_FAIL_INVALID_CALLID]);
 				goto error3;
 			}
 			break;
 		case 'I':
 			conn_id = (const char *)line + 3;
-			if (mgcp_verify_ci(endp, conn_id) != 0) {
-				error_code = 515;
+			if ((error_code = mgcp_verify_ci(endp, conn_id))) {
+				rate_ctr_inc(&rate_ctrs->ctr[MGCP_DLCX_FAIL_INVALID_CONNID]);
 				goto error3;
 			}
 			break;
@@ -1167,6 +1317,7 @@ static struct msgb *handle_delete_con(struct mgcp_parse_data *p)
 			LOGP(DLMGCP, LOGL_NOTICE,
 			     "DLCX: endpoint:0x%x Unhandled MGCP option: '%c'/%d\n",
 			     ENDPOINT_NUMBER(endp), line[0], line[0]);
+			rate_ctr_inc(&rate_ctrs->ctr[MGCP_DLCX_FAIL_UNHANDLED_PARAM]);
 			return create_err_response(NULL, 539, "DLCX", p->trans);
 			break;
 		}
@@ -1182,12 +1333,14 @@ static struct msgb *handle_delete_con(struct mgcp_parse_data *p)
 			LOGP(DLMGCP, LOGL_NOTICE,
 			     "DLCX: endpoint:0x%x rejected by policy\n",
 			     ENDPOINT_NUMBER(endp));
+			rate_ctr_inc(&rate_ctrs->ctr[MGCP_DLCX_FAIL_REJECTED_BY_POLICY]);
 			if (silent)
 				goto out_silent;
 			return create_err_response(endp, 400, "DLCX", p->trans);
 			break;
 		case MGCP_POLICY_DEFER:
 			/* stop processing */
+			rate_ctr_inc(&rate_ctrs->ctr[MGCP_DLCX_DEFERRED_BY_POLICY]);
 			return NULL;
 			break;
 		case MGCP_POLICY_CONT:
@@ -1200,9 +1353,13 @@ static struct msgb *handle_delete_con(struct mgcp_parse_data *p)
 	 * wildcarded DLCX and drop all connections at once. (See also
 	 * RFC3435 Section F.7) */
 	if (!conn_id) {
+		int num_conns = llist_count(&endp->conns);
 		LOGP(DLMGCP, LOGL_NOTICE,
-		     "DLCX: endpoint:0x%x missing ci (connectionIdentifier), will remove all connections at once\n",
-		     ENDPOINT_NUMBER(endp));
+		     "DLCX: endpoint:0x%x missing ci (connectionIdentifier), will remove all connections (%d total) at once\n",
+		     num_conns, ENDPOINT_NUMBER(endp));
+
+		if (num_conns > 0)
+			rate_ctr_add(&rate_ctrs->ctr[MGCP_DLCX_SUCCESS], num_conns);
 
 		mgcp_endp_release(endp);
 
@@ -1214,9 +1371,10 @@ static struct msgb *handle_delete_con(struct mgcp_parse_data *p)
 
 	/* Find the connection */
 	conn = mgcp_conn_get_rtp(endp, conn_id);
-	if (!conn)
+	if (!conn) {
+		rate_ctr_inc(&rate_ctrs->ctr[MGCP_DLCX_FAIL_INVALID_CONNID]);
 		goto error3;
-
+	}
 	/* save the statistics of the current connection */
 	mgcp_format_stats(stats, sizeof(stats), conn->conn);
 
@@ -1241,6 +1399,7 @@ static struct msgb *handle_delete_con(struct mgcp_parse_data *p)
 		p->cfg->change_cb(endp->tcfg, ENDPOINT_NUMBER(endp),
 				  MGCP_ENDP_DLCX);
 
+	rate_ctr_inc(&rate_ctrs->ctr[MGCP_DLCX_SUCCESS]);
 	if (silent)
 		goto out_silent;
 	return create_ok_resp_with_param(endp, 250, "DLCX", p->trans, stats);
@@ -1370,6 +1529,45 @@ void mgcp_trunk_set_keepalive(struct mgcp_trunk_config *tcfg, int interval)
 				    tcfg->keepalive_interval, 0);
 }
 
+static int free_rate_counter_group(struct rate_ctr_group *rate_ctr_group)
+{
+	rate_ctr_group_free(rate_ctr_group);
+	return 0;
+}
+
+static void alloc_mgcp_rate_counters(struct mgcp_trunk_config *trunk, void *ctx)
+{
+	/* FIXME: Each new rate counter group requires a unique index. At the
+	 * moment we generate an index using a counter, but perhaps there is
+	 * a better way of assigning indices? */
+	static unsigned int crcx_rate_ctr_index = 0;
+	static unsigned int mdcx_rate_ctr_index = 0;
+	static unsigned int dlcx_rate_ctr_index = 0;
+	static unsigned int all_rtp_conn_rate_ctr_index = 0;
+
+	if (trunk->mgcp_crcx_ctr_group == NULL) {
+		trunk->mgcp_crcx_ctr_group = rate_ctr_group_alloc(ctx, &mgcp_crcx_ctr_group_desc, crcx_rate_ctr_index);
+		talloc_set_destructor(trunk->mgcp_crcx_ctr_group, free_rate_counter_group);
+		crcx_rate_ctr_index++;
+	}
+	if (trunk->mgcp_mdcx_ctr_group == NULL) {
+		trunk->mgcp_mdcx_ctr_group = rate_ctr_group_alloc(ctx, &mgcp_mdcx_ctr_group_desc, mdcx_rate_ctr_index);
+		talloc_set_destructor(trunk->mgcp_mdcx_ctr_group, free_rate_counter_group);
+		mdcx_rate_ctr_index++;
+	}
+	if (trunk->mgcp_dlcx_ctr_group == NULL) {
+		trunk->mgcp_dlcx_ctr_group = rate_ctr_group_alloc(ctx, &mgcp_dlcx_ctr_group_desc, dlcx_rate_ctr_index);
+		talloc_set_destructor(trunk->mgcp_dlcx_ctr_group, free_rate_counter_group);
+		dlcx_rate_ctr_index++;
+	}
+	if (trunk->all_rtp_conn_stats == NULL) {
+		trunk->all_rtp_conn_stats = rate_ctr_group_alloc(ctx, &all_rtp_conn_rate_ctr_group_desc,
+								 all_rtp_conn_rate_ctr_index);
+		talloc_set_destructor(trunk->all_rtp_conn_stats, free_rate_counter_group);
+		all_rtp_conn_rate_ctr_index++;
+	}
+}
+
 /*! allocate configuration with default values.
  *  (called once at startup by main function) */
 struct mgcp_config *mgcp_config_alloc(void)
@@ -1407,6 +1605,7 @@ struct mgcp_config *mgcp_config_alloc(void)
 	cfg->trunk.audio_send_name = 1;
 	cfg->trunk.omit_rtcp = 0;
 	mgcp_trunk_set_keepalive(&cfg->trunk, MGCP_KEEPALIVE_ONCE);
+	alloc_mgcp_rate_counters(&cfg->trunk, cfg);
 
 	INIT_LLIST_HEAD(&cfg->trunks);
 
@@ -1438,7 +1637,9 @@ struct mgcp_trunk_config *mgcp_trunk_alloc(struct mgcp_config *cfg, int nr)
 	trunk->vty_number_endpoints = 33;
 	trunk->omit_rtcp = 0;
 	mgcp_trunk_set_keepalive(trunk, MGCP_KEEPALIVE_ONCE);
+	alloc_mgcp_rate_counters(trunk, trunk);
 	llist_add_tail(&trunk->entry, &cfg->trunks);
+
 	return trunk;
 }
 
@@ -1483,6 +1684,8 @@ int mgcp_endpoints_allocate(struct mgcp_trunk_config *tcfg)
 	}
 
 	tcfg->number_endpoints = tcfg->vty_number_endpoints;
+	alloc_mgcp_rate_counters(tcfg, tcfg->cfg);
+
 	return 0;
 }
 

src/libosmo-mgcp/mgcp_sdp.c

@@ -286,6 +286,50 @@ int mgcp_parse_sdp_data(const struct mgcp_endpoint *endp,
 	return 0;
 }
 
+
+/* Add rtpmap string to the sdp payload, but only when the payload type falls
+ * into the dynamic payload type range */
+static int add_rtpmap(struct msgb *sdp, int payload_type, const char *audio_name)
+{
+	int rc;
+
+	if (payload_type >= 96 && payload_type <= 127) {
+		if (!audio_name)
+			return -EINVAL;
+		rc = msgb_printf(sdp, "a=rtpmap:%d %s\r\n", payload_type, audio_name);
+		if (rc < 0)
+			return -EINVAL;
+	}
+
+	return 0;
+}
+
+/* Add audio string to sdp payload */
+static int add_audio(struct msgb *sdp, int *payload_types, unsigned int payload_types_len, int local_port)
+{
+	int rc;
+	unsigned int i;
+
+	if (payload_types_len < 0)
+		return -EINVAL;
+
+	rc = msgb_printf(sdp, "m=audio %d RTP/AVP", local_port);
+	if (rc < 0)
+		return -EINVAL;
+
+	for (i = 0; i < payload_types_len; i++) {
+		rc = msgb_printf(sdp, " %d", payload_types[i]);
+		if (rc < 0)
+			return -EINVAL;
+	}
+
+	rc = msgb_printf(sdp, "\r\n");
+	if (rc < 0)
+		return -EINVAL;
+
+	return 0;
+}
+
 /*! Generate SDP response string.
  *  \param[in] endp trunk endpoint.
  *  \param[in] conn associated rtp connection.
@@ -300,6 +344,7 @@ int mgcp_write_response_sdp(const struct mgcp_endpoint *endp,
 	const char *audio_name;
 	int payload_type;
 	int rc;
+	int payload_types[1];
 
 	OSMO_ASSERT(endp);
 	OSMO_ASSERT(conn);
@@ -323,17 +368,14 @@ int mgcp_write_response_sdp(const struct mgcp_endpoint *endp,
 		goto buffer_too_small;
 
 	if (payload_type >= 0) {
-		rc = msgb_printf(sdp, "m=audio %d RTP/AVP %d\r\n",
-				 conn->end.local_port, payload_type);
+
+		payload_types[0] = payload_type;
+		rc = add_audio(sdp, payload_types, 1, conn->end.local_port);
 		if (rc < 0)
 			goto buffer_too_small;
 
-		/* FIXME: Check if the payload type is from the static range,
-		 * if yes, omitthe a=rtpmap since it is unnecessary */
-		if (audio_name && endp->tcfg->audio_send_name && (payload_type >= 96 && payload_type <= 127)) {
-			rc = msgb_printf(sdp, "a=rtpmap:%d %s\r\n",
-					 payload_type, audio_name);
-
+		if (endp->tcfg->audio_send_name) {
+			rc = add_rtpmap(sdp, payload_type, audio_name);
 			if (rc < 0)
 				goto buffer_too_small;
 		}

src/libosmo-mgcp/mgcp_vty.c

@@ -22,6 +22,7 @@
  */
 
 #include <osmocom/core/talloc.h>
+#include <osmocom/vty/misc.h>
 #include <osmocom/mgcp/mgcp.h>
 #include <osmocom/mgcp/mgcp_common.h>
 #include <osmocom/mgcp/mgcp_internal.h>
@@ -31,10 +32,14 @@
 
 #include <string.h>
 #include <inttypes.h>
+#include <limits.h>
 
 #define RTCP_OMIT_STR "Drop RTCP packets in both directions\n"
 #define RTP_PATCH_STR "Modify RTP packet header in both directions\n"
 #define RTP_KEEPALIVE_STR "Send dummy UDP packet to net RTP destination\n"
+#define RTP_TS101318_RFC5993_CONV_STR "Convert GSM-HR from TS101318 to RFC5993 and vice versa\n"
+#define RTP_AMR_OA_BWE_CONV_STR "Convert AMR from octet-aligned to bandwith-efficient mode and vice versa\n"
+
 
 static struct mgcp_config *g_cfg = NULL;
 
@@ -94,13 +99,17 @@ static int config_write_mgcp(struct vty *vty)
 	else
 		vty_out(vty, "  no rtcp-omit%s", VTY_NEWLINE);
 	if (g_cfg->trunk.force_constant_ssrc
-	    || g_cfg->trunk.force_aligned_timing) {
+	    || g_cfg->trunk.force_aligned_timing
+	    || g_cfg->trunk.rfc5993_hr_convert) {
 		vty_out(vty, "  %srtp-patch ssrc%s",
 			g_cfg->trunk.force_constant_ssrc ? "" : "no ",
 			VTY_NEWLINE);
 		vty_out(vty, "  %srtp-patch timestamp%s",
 			g_cfg->trunk.force_aligned_timing ? "" : "no ",
 			VTY_NEWLINE);
+		vty_out(vty, "  %srtp-patch rfc5993hr%s",
+			g_cfg->trunk.rfc5993_hr_convert ? "" : "no ",
+			VTY_NEWLINE);
 	} else
 		vty_out(vty, "  no rtp-patch%s", VTY_NEWLINE);
 	if (g_cfg->trunk.audio_payload != -1)
@@ -152,6 +161,10 @@ static int config_write_mgcp(struct vty *vty)
 		vty_out(vty, "  osmux dummy %s%s",
 			g_cfg->osmux_dummy ? "on" : "off", VTY_NEWLINE);
 	}
+
+	if (g_cfg->conn_timeout)
+		vty_out(vty, "  conn-timeout %u%s", g_cfg->conn_timeout, VTY_NEWLINE);
+
 	return CMD_SUCCESS;
 }
 
@@ -160,11 +173,19 @@ static void dump_rtp_end(struct vty *vty, struct mgcp_conn_rtp *conn)
 	struct mgcp_rtp_state *state = &conn->state;
 	struct mgcp_rtp_end *end = &conn->end;
 	struct mgcp_rtp_codec *codec = end->codec;
+	struct rate_ctr *tx_packets, *tx_bytes;
+	struct rate_ctr *rx_packets, *rx_bytes;
 	struct rate_ctr *dropped_packets;
 
+	tx_packets = &conn->rate_ctr_group->ctr[RTP_PACKETS_TX_CTR];
+	tx_bytes = &conn->rate_ctr_group->ctr[RTP_OCTETS_TX_CTR];
+	rx_packets = &conn->rate_ctr_group->ctr[RTP_PACKETS_RX_CTR];
+	rx_bytes = &conn->rate_ctr_group->ctr[RTP_OCTETS_RX_CTR];
 	dropped_packets = &conn->rate_ctr_group->ctr[RTP_DROPPED_PACKETS_CTR];
 
 	vty_out(vty,
+		"   Packets Sent: %" PRIu64 " (%" PRIu64 " bytes total)%s"
+		"   Packets Received: %" PRIu64 " (%" PRIu64 " bytes total)%s"
 		"   Timestamp Errs: %" PRIu64 "->%" PRIu64 "%s"
 		"   Dropped Packets: %" PRIu64 "%s"
 		"   Payload Type: %d Rate: %u Channels: %d %s"
@@ -172,6 +193,8 @@ static void dump_rtp_end(struct vty *vty, struct mgcp_conn_rtp *conn)
 		"   FPP: %d Packet Duration: %u%s"
 		"   FMTP-Extra: %s Audio-Name: %s Sub-Type: %s%s"
 		"   Output-Enabled: %d Force-PTIME: %d%s",
+		tx_packets->current, tx_bytes->current, VTY_NEWLINE,
+		rx_packets->current, rx_bytes->current, VTY_NEWLINE,
 		state->in_stream.err_ts_ctr->current,
 		state->out_stream.err_ts_ctr->current,
 	        VTY_NEWLINE,
@@ -184,13 +207,47 @@ static void dump_rtp_end(struct vty *vty, struct mgcp_conn_rtp *conn)
 		end->force_output_ptime, VTY_NEWLINE);
 }
 
-static void dump_trunk(struct vty *vty, struct mgcp_trunk_config *cfg,
-		       int verbose)
+static void dump_endpoint(struct vty *vty, struct mgcp_endpoint *endp, int epidx,
+			  int trunk_nr, enum mgcp_trunk_type trunk_type, int show_stats)
 {
-	int i;
 	struct mgcp_conn *conn;
 
-	vty_out(vty, "%s trunk nr %d with %d endpoints:%s",
+	vty_out(vty, "%s trunk %d endpoint %s%.2x:%s",
+		trunk_type == MGCP_TRUNK_VIRTUAL ? "Virtual" : "E1", trunk_nr,
+		trunk_type == MGCP_TRUNK_VIRTUAL ? MGCP_ENDPOINT_PREFIX_VIRTUAL_TRUNK : "",
+		epidx, VTY_NEWLINE);
+
+	if (llist_empty(&endp->conns)) {
+		vty_out(vty, "   No active connections%s", VTY_NEWLINE);
+		return;
+	}
+
+	llist_for_each_entry(conn, &endp->conns, entry) {
+		vty_out(vty, "   CONN: %s%s", mgcp_conn_dump(conn), VTY_NEWLINE);
+
+		if (show_stats) {
+			if (endp->cfg->conn_timeout) {
+				struct timeval remaining;
+				osmo_timer_remaining(&conn->watchdog, NULL, &remaining);
+				vty_out(vty, "   Currently remaining timeout (seconds): %d.%06d%s",
+					(int)remaining.tv_sec, (int)remaining.tv_usec, VTY_NEWLINE);
+			}
+
+			/* FIXME: Also add verbosity for other
+			 * connection types (E1) as soon as
+			 * the implementation is available */
+			if (conn->type == MGCP_CONN_TYPE_RTP) {
+				dump_rtp_end(vty, &conn->u.rtp);
+			}
+		}
+	}
+}
+
+static void dump_trunk(struct vty *vty, struct mgcp_trunk_config *cfg, int show_stats)
+{
+	int i;
+
+	vty_out(vty, "%s trunk %d with %d endpoints:%s",
 		cfg->trunk_type == MGCP_TRUNK_VIRTUAL ? "Virtual" : "E1",
 		cfg->trunk_nr, cfg->number_endpoints - 1, VTY_NEWLINE);
 
@@ -201,29 +258,35 @@ static void dump_trunk(struct vty *vty, struct mgcp_trunk_config *cfg,
 
 	for (i = 1; i < cfg->number_endpoints; ++i) {
 		struct mgcp_endpoint *endp = &cfg->endpoints[i];
-
-		vty_out(vty, "Endpoint 0x%.2x:%s", i, VTY_NEWLINE);
-
-		llist_for_each_entry(conn, &endp->conns, entry) {
-			vty_out(vty, "   CONN: %s%s",
-				mgcp_conn_dump(conn), VTY_NEWLINE);
-
-			if (verbose) {
-				/* FIXME: Also add verbosity for other
-				 * connection types (E1) as soon as
-				 * the implementation is available */
-				if (conn->type == MGCP_CONN_TYPE_RTP) {
-					dump_rtp_end(vty, &conn->u.rtp);
+		dump_endpoint(vty, endp, i, cfg->trunk_nr, cfg->trunk_type, show_stats);
+		if (i < cfg->number_endpoints - 1)
+			vty_out(vty, "%s", VTY_NEWLINE);
 	}
+
+	if (show_stats && cfg->mgcp_crcx_ctr_group) {
+		vty_out(vty, "   %s:%s", cfg->mgcp_crcx_ctr_group->desc->group_description, VTY_NEWLINE);
+		vty_out_rate_ctr_group_fmt(vty, "   %25n: %10c (%S/s %M/m %H/h %D/d) %d", cfg->mgcp_crcx_ctr_group);
 	}
+	if (show_stats && cfg->mgcp_dlcx_ctr_group) {
+		vty_out(vty, "   %s:%s", cfg->mgcp_dlcx_ctr_group->desc->group_description, VTY_NEWLINE);
+		vty_out_rate_ctr_group_fmt(vty, "   %25n: %10c (%S/s %M/m %H/h %D/d) %d", cfg->mgcp_dlcx_ctr_group);
 	}
+	if (show_stats && cfg->mgcp_mdcx_ctr_group) {
+		vty_out(vty, "   %s:%s", cfg->mgcp_mdcx_ctr_group->desc->group_description, VTY_NEWLINE);
+		vty_out_rate_ctr_group_fmt(vty, "   %25n: %10c (%S/s %M/m %H/h %D/d) %d", cfg->mgcp_mdcx_ctr_group);
+	}
+	if (show_stats && cfg->all_rtp_conn_stats) {
+		vty_out(vty, "   %s:%s", cfg->all_rtp_conn_stats->desc->group_description, VTY_NEWLINE);
+		vty_out_rate_ctr_group_fmt(vty, "   %25n: %10c (%S/s %M/m %H/h %D/d) %d", cfg->all_rtp_conn_stats);
 	}
 }
 
+#define SHOW_MGCP_STR "Display information about the MGCP Media Gateway\n"
+
 DEFUN(show_mcgp, show_mgcp_cmd,
       "show mgcp [stats]",
       SHOW_STR
-      "Display information about the MGCP Media Gateway\n"
+      SHOW_MGCP_STR
       "Include Statistics\n")
 {
 	struct mgcp_trunk_config *trunk;
@@ -241,6 +304,72 @@ DEFUN(show_mcgp, show_mgcp_cmd,
 	return CMD_SUCCESS;
 }
 
+static void
+dump_mgcp_endpoint(struct vty *vty, struct mgcp_trunk_config *trunk, const char *epname)
+{
+	const size_t virt_prefix_len = sizeof(MGCP_ENDPOINT_PREFIX_VIRTUAL_TRUNK) - 1;
+	unsigned long epidx;
+	char *endp;
+	int i;
+
+	if (strncmp(epname, MGCP_ENDPOINT_PREFIX_VIRTUAL_TRUNK, virt_prefix_len) == 0)
+		epname += virt_prefix_len;
+	errno = 0;
+	epidx = strtoul(epname, &endp, 16);
+	if (epname[0] == '\0' || *endp != '\0') {
+		vty_out(vty, "endpoint name '%s' is not a hex number%s", epname, VTY_NEWLINE);
+		return;
+	}
+	if ((errno == ERANGE && epidx == ULONG_MAX) /* parsed value out of range */
+	    || epidx >= trunk->number_endpoints) {
+		vty_out(vty, "endpoint %.2lx not configured on trunk %d%s", epidx, trunk->trunk_nr, VTY_NEWLINE);
+		return;
+	}
+
+	for (i = 0; i < trunk->number_endpoints; ++i) {
+		struct mgcp_endpoint *endp = &trunk->endpoints[i];
+		if (i == epidx) {
+			dump_endpoint(vty, endp, i, trunk->trunk_nr, trunk->trunk_type, true);
+			break;
+		}
+	}
+}
+
+DEFUN(show_mcgp_endpoint, show_mgcp_endpoint_cmd,
+      "show mgcp endpoint NAME",
+      SHOW_STR
+      SHOW_MGCP_STR
+      "Display information about an endpoint\n" "The name of the endpoint\n")
+{
+	struct mgcp_trunk_config *trunk;
+
+	dump_mgcp_endpoint(vty, &g_cfg->trunk, argv[0]);
+	llist_for_each_entry(trunk, &g_cfg->trunks, entry)
+		dump_mgcp_endpoint(vty, trunk, argv[0]);
+
+	return CMD_SUCCESS;
+}
+
+DEFUN(show_mcgp_trunk_endpoint, show_mgcp_trunk_endpoint_cmd,
+      "show mgcp trunk <0-64> endpoint NAME",
+      SHOW_STR
+      SHOW_MGCP_STR
+      "Display information about a trunk\n" "Trunk number\n"
+      "Display information about an endpoint\n" "The name of the endpoint\n")
+{
+	struct mgcp_trunk_config *trunk;
+	int trunkidx = atoi(argv[0]);
+
+	trunk = find_trunk(g_cfg, trunkidx);
+	if (!trunk) {
+		vty_out(vty, "trunk %d not found%s", trunkidx, VTY_NEWLINE);
+		return CMD_WARNING;
+	}
+
+	dump_mgcp_endpoint(vty, trunk, argv[1]);
+	return CMD_SUCCESS;
+}
+
 DEFUN(cfg_mgcp, cfg_mgcp_cmd, "mgcp", "Configure the MGCP")
 {
 	vty->node = MGCP_NODE;
@@ -600,11 +729,44 @@ DEFUN(cfg_mgcp_no_patch_rtp_ts,
 	return CMD_SUCCESS;
 }
 
+DEFUN(cfg_mgcp_patch_rtp_rfc5993hr,
+      cfg_mgcp_patch_rtp_rfc5993hr_cmd,
+      "rtp-patch rfc5993hr", RTP_PATCH_STR RTP_TS101318_RFC5993_CONV_STR)
+{
+	g_cfg->trunk.rfc5993_hr_convert = true;
+	return CMD_SUCCESS;
+}
+
+DEFUN(cfg_mgcp_no_patch_rtp_rfc5993hr,
+      cfg_mgcp_no_patch_rtp_rfc5993hr_cmd,
+      "no rtp-patch rfc5993hr", NO_STR RTP_PATCH_STR RTP_TS101318_RFC5993_CONV_STR)
+{
+	g_cfg->trunk.rfc5993_hr_convert = false;
+	return CMD_SUCCESS;
+}
+
+DEFUN(cfg_mgcp_patch_rtp_amr_oa_bwe,
+      cfg_mgcp_patch_rtp_amr_oa_bwe_cmd,
+      "rtp-patch amr-oa-bwe", RTP_PATCH_STR RTP_AMR_OA_BWE_CONV_STR)
+{
+	g_cfg->trunk.amr_oa_bwe_convert = true;
+	return CMD_SUCCESS;
+}
+
+DEFUN(cfg_mgcp_no_patch_rtp_amr_oa_bwe,
+      cfg_mgcp_no_patch_rtp_amr_oa_bwe_cmd,
+      "no rtp-patch amr-oa-bwe", NO_STR RTP_PATCH_STR RTP_AMR_OA_BWE_CONV_STR)
+{
+	g_cfg->trunk.amr_oa_bwe_convert = false;
+	return CMD_SUCCESS;
+}
+
 DEFUN(cfg_mgcp_no_patch_rtp,
       cfg_mgcp_no_patch_rtp_cmd, "no rtp-patch", NO_STR RTP_PATCH_STR)
 {
 	g_cfg->trunk.force_constant_ssrc = 0;
 	g_cfg->trunk.force_aligned_timing = 0;
+	g_cfg->trunk.rfc5993_hr_convert = false;
 	return CMD_SUCCESS;
 }
 
@@ -701,13 +863,17 @@ static int config_write_trunk(struct vty *vty)
 			vty_out(vty, "  rtcp-omit%s", VTY_NEWLINE);
 		else
 			vty_out(vty, "  no rtcp-omit%s", VTY_NEWLINE);
-		if (trunk->force_constant_ssrc || trunk->force_aligned_timing) {
+		if (trunk->force_constant_ssrc || trunk->force_aligned_timing
+		    || g_cfg->trunk.rfc5993_hr_convert) {
 			vty_out(vty, "  %srtp-patch ssrc%s",
 				trunk->force_constant_ssrc ? "" : "no ",
 				VTY_NEWLINE);
 			vty_out(vty, "  %srtp-patch timestamp%s",
 				trunk->force_aligned_timing ? "" : "no ",
 				VTY_NEWLINE);
+			vty_out(vty, "  %srtp-patch rfc5993hr%s",
+				trunk->rfc5993_hr_convert ? "" : "no ",
+				VTY_NEWLINE);
 		} else
 			vty_out(vty, "  no rtp-patch%s", VTY_NEWLINE);
 		if (trunk->audio_fmtp_extra)
@@ -873,12 +1039,49 @@ DEFUN(cfg_trunk_no_patch_rtp_ts,
 	return CMD_SUCCESS;
 }
 
+DEFUN(cfg_trunk_patch_rtp_rfc5993hr,
+      cfg_trunk_patch_rtp_rfc5993hr_cmd,
+      "rtp-patch rfc5993hr", RTP_PATCH_STR RTP_TS101318_RFC5993_CONV_STR)
+{
+	struct mgcp_trunk_config *trunk = vty->index;
+	trunk->rfc5993_hr_convert = true;
+	return CMD_SUCCESS;
+}
+
+DEFUN(cfg_trunk_no_patch_rtp_rfc5993hr,
+      cfg_trunk_no_patch_rtp_rfc5993hr_cmd,
+      "no rtp-patch rfc5993hr", NO_STR RTP_PATCH_STR RTP_TS101318_RFC5993_CONV_STR)
+{
+	struct mgcp_trunk_config *trunk = vty->index;
+	trunk->rfc5993_hr_convert = false;
+	return CMD_SUCCESS;
+}
+
+DEFUN(cfg_trunk_patch_rtp_amr_oa_bwe,
+      cfg_trunk_patch_rtp_amr_oa_bwe_cmd,
+      "rtp-patch amr-oa-bwe", RTP_PATCH_STR RTP_AMR_OA_BWE_CONV_STR)
+{
+	struct mgcp_trunk_config *trunk = vty->index;
+	trunk->amr_oa_bwe_convert = true;
+	return CMD_SUCCESS;
+}
+
+DEFUN(cfg_trunk_no_patch_rtp_amr_oa_bwe,
+      cfg_trunk_no_patch_rtp_amr_oa_bwe_cmd,
+      "no rtp-patch amr-oa-bwe", NO_STR RTP_PATCH_STR RTP_AMR_OA_BWE_CONV_STR)
+{
+	struct mgcp_trunk_config *trunk = vty->index;
+	trunk->amr_oa_bwe_convert = false;
+	return CMD_SUCCESS;
+}
+
 DEFUN(cfg_trunk_no_patch_rtp,
       cfg_trunk_no_patch_rtp_cmd, "no rtp-patch", NO_STR RTP_PATCH_STR)
 {
 	struct mgcp_trunk_config *trunk = vty->index;
 	trunk->force_constant_ssrc = 0;
 	trunk->force_aligned_timing = 0;
+	trunk->rfc5993_hr_convert = false;
 	return CMD_SUCCESS;
 }
 
@@ -1208,15 +1411,31 @@ DEFUN(cfg_mgcp_osmux_dummy,
 
 DEFUN(cfg_mgcp_domain,
       cfg_mgcp_domain_cmd,
-      "domain NAME", "domain\n" "qualified domain name\n")
+      "domain NAME",
+      "Set the domain part expected in MGCP messages' endpoint names\n"
+      "Qualified domain name expected in MGCP endpoint names, or '*' to accept any domain\n")
 {
 	osmo_strlcpy(g_cfg->domain, argv[0], sizeof(g_cfg->domain));
 	return CMD_SUCCESS;
 }
 
+DEFUN(cfg_mgcp_conn_timeout,
+      cfg_mgcp_conn_timeout_cmd,
+      "conn-timeout <1-65534>",
+      "Set a time after which inactive connections (CIs) are closed. This can be used to work around interoperability"
+      " problems causing connections to stay open forever, and slowly exhausting all available ports. Do not enable"
+      " when LCLS is used (connections in LCLS state appear to be inactive)!\n"
+      "Timeout value (sec.)\n")
+{
+	g_cfg->conn_timeout = strtoul(argv[0], NULL, 10);
+	return CMD_SUCCESS;
+}
+
 int mgcp_vty_init(void)
 {
 	install_element_ve(&show_mgcp_cmd);
+	install_element_ve(&show_mgcp_endpoint_cmd);
+	install_element_ve(&show_mgcp_trunk_endpoint_cmd);
 	install_element(ENABLE_NODE, &loop_conn_cmd);
 	install_element(ENABLE_NODE, &tap_rtp_cmd);
 	install_element(ENABLE_NODE, &free_endp_cmd);
@@ -1262,6 +1481,10 @@ int mgcp_vty_init(void)
 	install_element(MGCP_NODE, &cfg_mgcp_patch_rtp_ts_cmd);
 	install_element(MGCP_NODE, &cfg_mgcp_no_patch_rtp_ts_cmd);
 	install_element(MGCP_NODE, &cfg_mgcp_no_patch_rtp_cmd);
+	install_element(MGCP_NODE, &cfg_mgcp_patch_rtp_rfc5993hr_cmd);
+	install_element(MGCP_NODE, &cfg_mgcp_no_patch_rtp_rfc5993hr_cmd);
+	install_element(MGCP_NODE, &cfg_mgcp_patch_rtp_amr_oa_bwe_cmd);
+	install_element(MGCP_NODE, &cfg_mgcp_no_patch_rtp_amr_oa_bwe_cmd);
 	install_element(MGCP_NODE, &cfg_mgcp_sdp_fmtp_extra_cmd);
 	install_element(MGCP_NODE, &cfg_mgcp_sdp_payload_send_ptime_cmd);
 	install_element(MGCP_NODE, &cfg_mgcp_no_sdp_payload_send_ptime_cmd);
@@ -1276,6 +1499,7 @@ int mgcp_vty_init(void)
 	install_element(MGCP_NODE, &cfg_mgcp_allow_transcoding_cmd);
 	install_element(MGCP_NODE, &cfg_mgcp_no_allow_transcoding_cmd);
 	install_element(MGCP_NODE, &cfg_mgcp_domain_cmd);
+	install_element(MGCP_NODE, &cfg_mgcp_conn_timeout_cmd);
 
 	install_element(MGCP_NODE, &cfg_mgcp_trunk_cmd);
 	install_node(&trunk_node, config_write_trunk);
@@ -1292,6 +1516,10 @@ int mgcp_vty_init(void)
 	install_element(TRUNK_NODE, &cfg_trunk_patch_rtp_ssrc_cmd);
 	install_element(TRUNK_NODE, &cfg_trunk_no_patch_rtp_ssrc_cmd);
 	install_element(TRUNK_NODE, &cfg_trunk_patch_rtp_ts_cmd);
+	install_element(TRUNK_NODE, &cfg_trunk_patch_rtp_rfc5993hr_cmd);
+	install_element(TRUNK_NODE, &cfg_trunk_no_patch_rtp_rfc5993hr_cmd);
+	install_element(TRUNK_NODE, &cfg_trunk_patch_rtp_amr_oa_bwe_cmd);
+	install_element(TRUNK_NODE, &cfg_trunk_no_patch_rtp_amr_oa_bwe_cmd);
 	install_element(TRUNK_NODE, &cfg_trunk_no_patch_rtp_ts_cmd);
 	install_element(TRUNK_NODE, &cfg_trunk_no_patch_rtp_cmd);
 	install_element(TRUNK_NODE, &cfg_trunk_sdp_fmtp_extra_cmd);

src/osmo-bsc_mgcp/Makefile.am

@@ -1,31 +0,0 @@
-AM_CPPFLAGS = \
-	$(all_includes) \
-	-I$(top_srcdir)/include \
-	-I$(top_builddir) \
-	$(NULL)
-
-AM_CFLAGS = \
-	-Wall \
-	$(LIBOSMOCORE_CFLAGS) \
-	$(LIBOSMOVTY_CFLAGS) \
-	$(LIBOSMONETIF_CFLAGS) \
-	$(LIBBCG729_CFLAGS) \
-	$(COVERAGE_CFLAGS) \
-	$(NULL)
-
-bin_PROGRAMS = \
-	osmo-bsc_mgcp \
-	$(NULL)
-
-osmo_bsc_mgcp_SOURCES = \
-	mgcp_main.c \
-	$(NULL)
-
-osmo_bsc_mgcp_LDADD = \
-	$(top_builddir)/src/libosmo-legacy-mgcp/libosmo-legacy-mgcp.la \
-	$(LIBOSMOCORE_LIBS) \
-	$(LIBOSMOVTY_LIBS) \
-	$(LIBOSMONETIF_LIBS) \
-	$(LIBBCG729_LIBS) \
-	$(LIBRARY_GSM) \
-	$(NULL)

src/osmo-bsc_mgcp/mgcp_main.c

@@ -1,351 +0,0 @@
-/* A Media Gateway Control Protocol Media Gateway: RFC 3435 */
-/* The main method to drive it as a standalone process      */
-
-/*
- * (C) 2009-2011 by Holger Hans Peter Freyther <zecke@selfish.org>
- * (C) 2009-2011 by On-Waves
- * All Rights Reserved
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as published by
- * the Free Software Foundation; either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-
-#include <ctype.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <time.h>
-#include <limits.h>
-#include <unistd.h>
-#include <errno.h>
-
-#include <sys/socket.h>
-
-#include <osmocom/legacy_mgcp/mgcp.h>
-#include <osmocom/legacy_mgcp/mgcp_internal.h>
-#include <osmocom/legacy_mgcp/vty.h>
-
-#include <osmocom/core/application.h>
-#include <osmocom/core/msgb.h>
-#include <osmocom/core/talloc.h>
-#include <osmocom/core/select.h>
-#include <osmocom/core/stats.h>
-#include <osmocom/core/rate_ctr.h>
-#include <osmocom/core/logging.h>
-
-#include <osmocom/vty/telnet_interface.h>
-#include <osmocom/vty/logging.h>
-#include <osmocom/vty/ports.h>
-#include <osmocom/vty/command.h>
-#include <osmocom/vty/stats.h>
-
-#include "../../bscconfig.h"
-
-#ifdef BUILD_MGCP_TRANSCODING
-#include <osmocom/legacy_mgcp/mgcp_transcode.h>
-#endif
-
-#define _GNU_SOURCE
-#include <getopt.h>
-
-#warning "Make use of the rtp proxy code"
-
-static struct mgcp_config *cfg;
-static struct mgcp_trunk_config *reset_trunk;
-static int reset_endpoints = 0;
-static int daemonize = 0;
-
-const char *openbsc_copyright =
-	"Copyright (C) 2009-2010 Holger Freyther and On-Waves\r\n"
-	"Contributions by Daniel Willmann, Jan Lübbe, Stefan Schmidt\r\n"
-	"Dieter Spaar, Andreas Eversberg, Harald Welte\r\n\r\n"
-	"License AGPLv3+: GNU AGPL version 3 or later <http://gnu.org/licenses/agpl-3.0.html>\r\n"
-	"This is free software: you are free to change and redistribute it.\r\n"
-	"There is NO WARRANTY, to the extent permitted by law.\r\n";
-
-static char *config_file = "mgcp.cfg";
-
-/* used by msgb and mgcp */
-void *tall_bsc_ctx = NULL;
-
-static void print_help()
-{
-	printf("Some useful help...\n");
-	printf(" -h --help is printing this text.\n");
-	printf(" -c --config-file filename The config file to use.\n");
-	printf(" -s --disable-color\n");
-	printf(" -D --daemonize Fork the process into a background daemon\n");
-	printf(" -V --version Print the version number\n");
-}
-
-static void handle_options(int argc, char **argv)
-{
-	while (1) {
-		int option_index = 0, c;
-		static struct option long_options[] = {
-			{"help", 0, 0, 'h'},
-			{"config-file", 1, 0, 'c'},
-			{"daemonize", 0, 0, 'D'},
-			{"version", 0, 0, 'V'},
-			{"disable-color", 0, 0, 's'},
-			{0, 0, 0, 0},
-		};
-
-		c = getopt_long(argc, argv, "hc:VD", long_options, &option_index);
-
-		if (c == -1)
-			break;
-
-		switch(c) {
-		case 'h':
-			print_help();
-			exit(0);
-			break;
-		case 'c':
-			config_file = talloc_strdup(tall_bsc_ctx, optarg);
-			break;
-		case 's':
-			log_set_use_color(osmo_stderr_target, 0);
-			break;
-		case 'V':
-			print_version(1);
-			exit(0);
-			break;
-		case 'D':
-			daemonize = 1;
-			break;
-		default:
-			/* ignore */
-			break;
-		};
-	}
-}
-
-/* simply remember this */
-static int mgcp_rsip_cb(struct mgcp_trunk_config *tcfg)
-{
-	reset_endpoints = 1;
-	reset_trunk = tcfg;
-
-	return 0;
-}
-
-static int read_call_agent(struct osmo_fd *fd, unsigned int what)
-{
-	struct sockaddr_in addr;
-	socklen_t slen = sizeof(addr);
-	struct msgb *msg;
-	struct msgb *resp;
-	int i;
-
-	msg = (struct msgb *) fd->data;
-
-	/* read one less so we can use it as a \0 */
-	int rc = recvfrom(cfg->gw_fd.bfd.fd, msg->data, msg->data_len - 1, 0,
-		(struct sockaddr *) &addr, &slen);
-	if (rc < 0) {
-		perror("Gateway failed to read");
-		return -1;
-	} else if (slen > sizeof(addr)) {
-		fprintf(stderr, "Gateway received message from outerspace: %zu %zu\n",
-			(size_t) slen, sizeof(addr));
-		return -1;
-	}
-
-	/* handle message now */
-	msg->l2h = msgb_put(msg, rc);
-	resp = mgcp_handle_message(cfg, msg);
-	msgb_reset(msg);
-
-	if (resp) {
-		sendto(cfg->gw_fd.bfd.fd, resp->l2h, msgb_l2len(resp), 0, (struct sockaddr *) &addr, sizeof(addr));
-		msgb_free(resp);
-	}
-
-	if (reset_endpoints) {
-		LOGP(DLMGCP, LOGL_NOTICE,
-		     "Asked to reset endpoints: %d/%d\n",
-		     reset_trunk->trunk_nr, reset_trunk->trunk_type);
-		reset_endpoints = 0;
-
-		/* is checking in_addr.s_addr == INADDR_LOOPBACK making it more secure? */
-		for (i = 1; i < reset_trunk->number_endpoints; ++i)
-			mgcp_release_endp(&reset_trunk->endpoints[i]);
-	}
-
-	return 0;
-}
-
-int mgcp_vty_is_config_node(struct vty *vty, int node)
-{
-	switch (node) {
-	case CONFIG_NODE:
-		return 0;
-
-	default:
-		return 1;
-	}
-}
-
-int mgcp_vty_go_parent(struct vty *vty)
-{
-	switch (vty->node) {
-	case TRUNK_NODE:
-		vty->node = MGCP_NODE;
-		vty->index = NULL;
-		break;
-	case MGCP_NODE:
-	default:
-		if (mgcp_vty_is_config_node(vty, vty->node))
-			vty->node = CONFIG_NODE;
-		else
-			vty->node = ENABLE_NODE;
-
-		vty->index = NULL;
-	}
-
-	return vty->node;
-}
-
-
-static struct vty_app_info vty_info = {
-	.name 		= "OpenBSC MGCP",
-	.version	= PACKAGE_VERSION,
-	.go_parent_cb	= mgcp_vty_go_parent,
-	.is_config_node	= mgcp_vty_is_config_node,
-};
-
-static const struct log_info_cat log_categories[] = {
-	/* DLMGCP is provided by the MGCP library */
-};
-
-const struct log_info log_info = {
-	.cat = log_categories,
-	.num_cat = ARRAY_SIZE(log_categories),
-};
-
-int main(int argc, char **argv)
-{
-	struct sockaddr_in addr;
-	int on = 1, rc;
-
-	tall_bsc_ctx = talloc_named_const(NULL, 1, "mgcp-callagent");
-	msgb_talloc_ctx_init(tall_bsc_ctx, 0);
-
-	osmo_init_ignore_signals();
-	osmo_init_logging2(tall_bsc_ctx, &log_info);
-
-	cfg = mgcp_config_alloc();
-	if (!cfg)
-		return -1;
-
-#ifdef BUILD_MGCP_TRANSCODING
-	cfg->setup_rtp_processing_cb = &mgcp_transcoding_setup;
-	cfg->rtp_processing_cb = &mgcp_transcoding_process_rtp;
-	cfg->get_net_downlink_format_cb = &mgcp_transcoding_net_downlink_format;
-#endif
-
-	cfg->trunk.force_realloc = 1;
-
-	vty_info.copyright = openbsc_copyright;
-	vty_init(&vty_info);
-	logging_vty_add_cmds(NULL);
-	osmo_stats_vty_add_cmds(&log_info);
-	mgcp_vty_init();
-
-	handle_options(argc, argv);
-
-	rate_ctr_init(tall_bsc_ctx);
-	osmo_stats_init(tall_bsc_ctx);
-
-	rc = mgcp_parse_config(config_file, cfg, MGCP_BSC);
-	if (rc < 0)
-		return rc;
-
-	/* start telnet after reading config for vty_get_bind_addr() */
-	rc = telnet_init_dynif(tall_bsc_ctx, NULL,
-			       vty_get_bind_addr(), OSMO_VTY_PORT_BSC_MGCP);
-	if (rc < 0)
-		return rc;
-
-	/* set some callbacks */
-	cfg->reset_cb = mgcp_rsip_cb;
-
-	/* we need to bind a socket */
-	if (rc == 0) {
-		cfg->gw_fd.bfd.when = BSC_FD_READ;
-		cfg->gw_fd.bfd.cb = read_call_agent;
-		cfg->gw_fd.bfd.fd = socket(AF_INET, SOCK_DGRAM, 0);
-		if (cfg->gw_fd.bfd.fd < 0) {
-			perror("Gateway failed to listen");
-			return -1;
-		}
-
-		setsockopt(cfg->gw_fd.bfd.fd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
-
-		memset(&addr, 0, sizeof(addr));
-		addr.sin_family = AF_INET;
-		addr.sin_port = htons(cfg->source_port);
-		inet_aton(cfg->source_addr, &addr.sin_addr);
-
-		if (bind(cfg->gw_fd.bfd.fd, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
-			perror("Gateway failed to bind");
-			return -1;
-		}
-
-		cfg->gw_fd.bfd.data = msgb_alloc(4096, "mgcp-msg");
-		if (!cfg->gw_fd.bfd.data) {
-			fprintf(stderr, "Gateway memory error.\n");
-			return -1;
-		}
-
-		if (cfg->call_agent_addr) {
-			addr.sin_port = htons(2727);
-			inet_aton(cfg->call_agent_addr, &addr.sin_addr);
-			if (connect(cfg->gw_fd.bfd.fd, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
-				LOGP(DLMGCP, LOGL_ERROR, "Failed to connect to: '%s'. errno: %d\n",
-				     cfg->call_agent_addr, errno);
-				close(cfg->gw_fd.bfd.fd);
-				cfg->gw_fd.bfd.fd = -1;
-				return -1;
-			}
-		}
-
-		if (osmo_fd_register(&cfg->gw_fd.bfd) != 0) {
-			LOGP(DLMGCP, LOGL_FATAL, "Failed to register the fd\n");
-			return -1;
-		}
-
-		LOGP(DLMGCP, LOGL_NOTICE, "Configured for MGCP.\n");
-	}
-
-	/* initialisation */
-	srand(time(NULL));
-
-	if (daemonize) {
-		rc = osmo_daemonize();
-		if (rc < 0) {
-			perror("Error during daemonize");
-			exit(1);
-		}
-	}
-
-	/* main loop */
-	while (1) {
-		osmo_select_main(0);
-	}
-
-
-	return 0;
-}

src/osmo-mgw/mgw_main.c

@@ -104,7 +104,7 @@ static void handle_options(int argc, char **argv)
 			{0, 0, 0, 0},
 		};
 
-		c = getopt_long(argc, argv, "hc:VD", long_options, &option_index);
+		c = getopt_long(argc, argv, "hc:sVD", long_options, &option_index);
 
 		if (c == -1)
 			break;

tests/Makefile.am

@@ -1,5 +1,4 @@
 SUBDIRS = \
-	legacy_mgcp \
 	mgcp_client \
 	mgcp \
 	$(NULL)
@@ -26,7 +25,6 @@ EXTRA_DIST = \
 	testsuite.at \
 	$(srcdir)/package.m4 \
 	$(TESTSUITE) \
-	vty_test_runner.py \
 	$(NULL)
 
 TESTSUITE = $(srcdir)/testsuite
@@ -39,7 +37,6 @@ if ENABLE_EXT_TESTS
 python-tests: $(BUILT_SOURCES)
 	osmotestvty.py -p $(abs_top_srcdir) -w $(abs_top_builddir) -v
 	osmotestconfig.py -p $(abs_top_srcdir) -w $(abs_top_builddir) -v
-	$(PYTHON) $(srcdir)/vty_test_runner.py -w $(abs_top_builddir) -v
 else
 python-tests: $(BUILT_SOURCES)
 	echo "Not running python-based tests (determined at configure-time)"

tests/atlocal.in

@@ -1,7 +1,6 @@
 enable_nat_test='@osmo_ac_build_nat@'
 enable_smpp_test='@osmo_ac_build_smpp@'
 enable_bsc_test='@osmo_ac_build_bsc@'
-enable_mgcp_transcoding_test='@osmo_ac_mgcp_transcoding@'
 enable_sgsn_test='@found_libgtp_and_libcares@'
 enable_oap_test='@found_libgtp_and_libcares@'
 enable_gtphub_test='@found_libgtp_and_libcares@'

tests/legacy_mgcp/Makefile.am

@@ -1,61 +0,0 @@
-AM_CPPFLAGS = \
-	$(all_includes) \
-	-I$(top_srcdir)/include \
-	-I$(top_srcdir) \
-	$(NULL)
-
-AM_CFLAGS = \
-	-Wall \
-	-ggdb3 \
-	$(LIBOSMOCORE_CFLAGS) \
-	$(LIBOSMONETIF_CFLAGS) \
-	$(LIBBCG729_CFLAGS) \
-	$(COVERAGE_CFLAGS) \
-	$(NULL)
-
-AM_LDFLAGS = \
-	$(COVERAGE_LDFLAGS) \
-	$(NULL)
-
-EXTRA_DIST = \
-	mgcp_test.ok \
-	mgcp_transcoding_test.ok \
-	$(NULL)
-
-noinst_PROGRAMS = \
-	mgcp_test \
-	$(NULL)
-if BUILD_MGCP_TRANSCODING
-noinst_PROGRAMS += \
-	mgcp_transcoding_test \
-	$(NULL)
-endif
-
-mgcp_test_SOURCES = \
-	mgcp_test.c \
-	$(NULL)
-
-mgcp_test_LDADD = \
-	$(top_builddir)/src/libosmo-legacy-mgcp/libosmo-legacy-mgcp.la \
-	$(LIBOSMOCORE_LIBS) \
-	$(LIBOSMOVTY_LIBS) \
-	$(LIBRARY_DL) \
-	$(LIBOSMONETIF_LIBS) \
-	$(LIBRARY_GSM) \
-	-lm  \
-	$(NULL)
-
-mgcp_transcoding_test_SOURCES = \
-	mgcp_transcoding_test.c \
-	$(NULL)
-
-mgcp_transcoding_test_LDADD = \
-	$(top_builddir)/src/libosmo-legacy-mgcp/libosmo-legacy-mgcp.la \
-	$(LIBOSMOCORE_LIBS) \
-	$(LIBOSMOVTY_LIBS) \
-	$(LIBBCG729_LIBS) \
-	$(LIBRARY_DL) \
-	$(LIBOSMONETIF_LIBS) \
-	$(LIBRARY_GSM) \
-	-lm \
-	$(NULL)

tests/legacy_mgcp/mgcp_test.ok

@@ -1,480 +0,0 @@
-line: 'one CR'
-line: 'two CR'
-line: ''
-line: 'one CRLF'
-line: 'two CRLF'
-line: ''
-line: 'one LF'
-line: 'two LF'
-line: ''
-line: 'mixed (4 lines)'
-line: ''
-line: ''
-line: ''
-Testing AUEP1
-Testing AUEP2
-Testing MDCX1
-Testing MDCX2
-Testing CRCX
-Dummy packets: 1
-Detected packet duration: 40
-Requested packetetization period: 20-20
-Connection mode: 1: RECV
-Testing MDCX3
-Dummy packets: 1
-Packet duration not set
-Requested packetization period not set
-Connection mode not set
-Testing MDCX4
-Dummy packets: 1
-Detected packet duration: 40
-Requested packetetization period: 20-20
-Connection mode: 3: SEND RECV
-Testing MDCX4_PT1
-Dummy packets: 1
-Detected packet duration: 40
-Requested packetetization period: 20-40
-Connection mode: 3: SEND RECV
-Testing MDCX4_PT2
-Dummy packets: 1
-Detected packet duration: 40
-Requested packetetization period: 20-20
-Connection mode: 3: SEND RECV
-Testing MDCX4_PT3
-Dummy packets: 1
-Detected packet duration: 40
-Requested packetization period not set
-Connection mode: 3: SEND RECV
-Testing MDCX4_SO
-Detected packet duration: 40
-Requested packetetization period: 20-20
-Connection mode: 2: SEND
-Testing MDCX4_RO
-Dummy packets: 1
-Packet duration not set
-Requested packetetization period: 20-20
-Connection mode: 1: RECV
-Testing DLCX
-Detected packet duration: 20
-Requested packetization period not set
-Connection mode: 0: NONE
-Testing CRCX_ZYN
-Dummy packets: 1
-Packet duration not set
-Requested packetization period not set
-Connection mode: 1: RECV
-Testing EMPTY
-Testing SHORT1
-Testing SHORT2
-Testing SHORT3
-Testing SHORT4
-Testing RQNT1
-Testing RQNT2
-Testing DLCX
-Detected packet duration: 20
-Requested packetization period not set
-Connection mode: 0: NONE
-Testing CRCX
-Dummy packets: 1
-Detected packet duration: 40
-Requested packetetization period: 20-20
-Connection mode: 1: RECV
-Testing MDCX3
-Dummy packets: 1
-Packet duration not set
-Requested packetization period not set
-Connection mode not set
-Testing DLCX
-Detected packet duration: 20
-Requested packetization period not set
-Connection mode: 0: NONE
-Testing CRCX
-Re-transmitting CRCX
-Testing RQNT1
-Re-transmitting RQNT1
-Testing RQNT2
-Re-transmitting RQNT2
-Testing MDCX3
-Re-transmitting MDCX3
-Testing DLCX
-Re-transmitting DLCX
-Testing packet loss calculation.
-Testing stat parsing
-Parsing result: 0
-Parsing result: 0
-Testing packet error detection, patch SSRC.
-Output SSRC changed to 11223344
-In TS: 0, dTS: 0, Seq: 0
-Out TS change: 0, dTS: 0, Seq change: 0, TS Err change: in +0, out +0
-Stats: Jitter = 0, Transit = 0
-In TS: 160, dTS: 160, Seq: 1
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 0, Transit = 0
-In TS: 320, dTS: 160, Seq: 2
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 0, Transit = 0
-In TS: 320, dTS: 160, Seq: 3
-Out TS change: 0, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 10, Transit = 160
-In TS: 480, dTS: 160, Seq: 4
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 9, Transit = 160
-In TS: 640, dTS: 160, Seq: 5
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 8, Transit = 160
-In TS: 960, dTS: 320, Seq: 6
-Out TS change: 320, dTS: 320, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 18, Transit = 0
-In TS: 1120, dTS: 160, Seq: 7
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 17, Transit = 0
-In TS: 1280, dTS: 160, Seq: 8
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 16, Transit = 0
-In TS: 1400, dTS: 120, Seq: 9
-Out TS change: 120, dTS: 120, Seq change: 1, TS Err change: in +1, out +1
-Stats: Jitter = 17, Transit = 40
-In TS: 1560, dTS: 160, Seq: 10
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 16, Transit = 40
-In TS: 1720, dTS: 160, Seq: 11
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 15, Transit = 40
-In TS: 34688, dTS: 0, Seq: 12
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 0, Transit = -32768
-In TS: 34848, dTS: 160, Seq: 13
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 0, Transit = -32768
-In TS: 35008, dTS: 160, Seq: 14
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 0, Transit = -32768
-In TS: 35128, dTS: 120, Seq: 15
-Out TS change: 120, dTS: 120, Seq change: 1, TS Err change: in +1, out +1
-Stats: Jitter = 2, Transit = -32728
-In TS: 35288, dTS: 160, Seq: 16
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 2, Transit = -32728
-In TS: 35448, dTS: 160, Seq: 17
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 2, Transit = -32728
-In TS: 35768, dTS: 160, Seq: 19
-Out TS change: 320, dTS: 160, Seq change: 2, TS Err change: in +0, out +0
-Stats: Jitter = 12, Transit = -32888
-In TS: 35928, dTS: 160, Seq: 20
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 11, Transit = -32888
-In TS: 36088, dTS: 160, Seq: 21
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 20, Transit = -33048
-In TS: 36088, dTS: 160, Seq: 21
-Out TS change: 0, dTS: 160, Seq change: 0, TS Err change: in +0, out +0
-Stats: Jitter = 29, Transit = -32888
-In TS: 36248, dTS: 160, Seq: 22
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 27, Transit = -32888
-In TS: 36408, dTS: 160, Seq: 23
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 25, Transit = -32888
-In TS: 36568, dTS: 160, Seq: 23
-Out TS change: 160, dTS: 160, Seq change: 0, TS Err change: in +1, out +1
-Stats: Jitter = 24, Transit = -32888
-In TS: 36728, dTS: 160, Seq: 24
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 22, Transit = -32888
-In TS: 36888, dTS: 160, Seq: 25
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 21, Transit = -32888
-In TS: 160000, dTS: 0, Seq: 1000
-Out TS change: 12000, dTS: 12000, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 0, Transit = -144000
-In TS: 160160, dTS: 160, Seq: 1001
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 0, Transit = -144000
-In TS: 160320, dTS: 160, Seq: 1002
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 0, Transit = -144000
-Testing packet error detection.
-Output SSRC changed to 11223344
-In TS: 0, dTS: 0, Seq: 0
-Out TS change: 0, dTS: 0, Seq change: 0, TS Err change: in +0, out +0
-Stats: Jitter = 0, Transit = 0
-In TS: 160, dTS: 160, Seq: 1
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 0, Transit = 0
-In TS: 320, dTS: 160, Seq: 2
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 0, Transit = 0
-In TS: 320, dTS: 160, Seq: 3
-Out TS change: 0, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 10, Transit = 160
-In TS: 480, dTS: 160, Seq: 4
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 9, Transit = 160
-In TS: 640, dTS: 160, Seq: 5
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 8, Transit = 160
-In TS: 960, dTS: 320, Seq: 6
-Out TS change: 320, dTS: 320, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 18, Transit = 0
-In TS: 1120, dTS: 160, Seq: 7
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 17, Transit = 0
-In TS: 1280, dTS: 160, Seq: 8
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 16, Transit = 0
-In TS: 1400, dTS: 120, Seq: 9
-Out TS change: 120, dTS: 120, Seq change: 1, TS Err change: in +1, out +1
-Stats: Jitter = 17, Transit = 40
-In TS: 1560, dTS: 160, Seq: 10
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 16, Transit = 40
-In TS: 1720, dTS: 160, Seq: 11
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 15, Transit = 40
-Output SSRC changed to 10203040
-In TS: 34688, dTS: 0, Seq: 12
-Out TS change: 32968, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 0, Transit = -32768
-In TS: 34848, dTS: 160, Seq: 13
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 0, Transit = -32768
-In TS: 35008, dTS: 160, Seq: 14
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 0, Transit = -32768
-In TS: 35128, dTS: 120, Seq: 15
-Out TS change: 120, dTS: 120, Seq change: 1, TS Err change: in +1, out +1
-Stats: Jitter = 2, Transit = -32728
-In TS: 35288, dTS: 160, Seq: 16
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 2, Transit = -32728
-In TS: 35448, dTS: 160, Seq: 17
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 2, Transit = -32728
-In TS: 35768, dTS: 160, Seq: 19
-Out TS change: 320, dTS: 160, Seq change: 2, TS Err change: in +0, out +0
-Stats: Jitter = 12, Transit = -32888
-In TS: 35928, dTS: 160, Seq: 20
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 11, Transit = -32888
-In TS: 36088, dTS: 160, Seq: 21
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 20, Transit = -33048
-In TS: 36088, dTS: 160, Seq: 21
-Out TS change: 0, dTS: 160, Seq change: 0, TS Err change: in +0, out +0
-Stats: Jitter = 29, Transit = -32888
-In TS: 36248, dTS: 160, Seq: 22
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 27, Transit = -32888
-In TS: 36408, dTS: 160, Seq: 23
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 25, Transit = -32888
-In TS: 36568, dTS: 160, Seq: 23
-Out TS change: 160, dTS: 160, Seq change: 0, TS Err change: in +1, out +1
-Stats: Jitter = 24, Transit = -32888
-In TS: 36728, dTS: 160, Seq: 24
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 22, Transit = -32888
-In TS: 36888, dTS: 160, Seq: 25
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 21, Transit = -32888
-Output SSRC changed to 50607080
-In TS: 160000, dTS: 0, Seq: 1000
-Out TS change: 123112, dTS: 160, Seq change: 975, TS Err change: in +0, out +0
-Stats: Jitter = 0, Transit = -144000
-In TS: 160160, dTS: 160, Seq: 1001
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 0, Transit = -144000
-In TS: 160320, dTS: 160, Seq: 1002
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 0, Transit = -144000
-Testing packet error detection, patch timestamps.
-Output SSRC changed to 11223344
-In TS: 0, dTS: 0, Seq: 0
-Out TS change: 0, dTS: 0, Seq change: 0, TS Err change: in +0, out +0
-Stats: Jitter = 0, Transit = 0
-In TS: 160, dTS: 160, Seq: 1
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 0, Transit = 0
-In TS: 320, dTS: 160, Seq: 2
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 0, Transit = 0
-In TS: 320, dTS: 160, Seq: 3
-Out TS change: 0, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 10, Transit = 160
-In TS: 480, dTS: 160, Seq: 4
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 9, Transit = 160
-In TS: 640, dTS: 160, Seq: 5
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 8, Transit = 160
-In TS: 960, dTS: 320, Seq: 6
-Out TS change: 320, dTS: 320, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 18, Transit = 0
-In TS: 1120, dTS: 160, Seq: 7
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 17, Transit = 0
-In TS: 1280, dTS: 160, Seq: 8
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 16, Transit = 0
-In TS: 1400, dTS: 120, Seq: 9
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +1, out +0
-Stats: Jitter = 17, Transit = 40
-In TS: 1560, dTS: 160, Seq: 10
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 16, Transit = 40
-In TS: 1720, dTS: 160, Seq: 11
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 15, Transit = 40
-Output SSRC changed to 10203040
-In TS: 34688, dTS: 0, Seq: 12
-Out TS change: 32968, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 0, Transit = -32768
-In TS: 34848, dTS: 160, Seq: 13
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 0, Transit = -32768
-In TS: 35008, dTS: 160, Seq: 14
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 0, Transit = -32768
-In TS: 35128, dTS: 120, Seq: 15
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +1, out +0
-Stats: Jitter = 2, Transit = -32728
-In TS: 35288, dTS: 160, Seq: 16
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 2, Transit = -32728
-In TS: 35448, dTS: 160, Seq: 17
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 2, Transit = -32728
-In TS: 35768, dTS: 160, Seq: 19
-Out TS change: 320, dTS: 160, Seq change: 2, TS Err change: in +0, out +0
-Stats: Jitter = 12, Transit = -32888
-In TS: 35928, dTS: 160, Seq: 20
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 11, Transit = -32888
-In TS: 36088, dTS: 160, Seq: 21
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 20, Transit = -33048
-In TS: 36088, dTS: 160, Seq: 21
-Out TS change: 0, dTS: 160, Seq change: 0, TS Err change: in +0, out +0
-Stats: Jitter = 29, Transit = -32888
-In TS: 36248, dTS: 160, Seq: 22
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 27, Transit = -32888
-In TS: 36408, dTS: 160, Seq: 23
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 25, Transit = -32888
-In TS: 36568, dTS: 160, Seq: 23
-Out TS change: 160, dTS: 160, Seq change: 0, TS Err change: in +1, out +1
-Stats: Jitter = 24, Transit = -32888
-In TS: 36728, dTS: 160, Seq: 24
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 22, Transit = -32888
-In TS: 36888, dTS: 160, Seq: 25
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 21, Transit = -32888
-Output SSRC changed to 50607080
-In TS: 160000, dTS: 0, Seq: 1000
-Out TS change: 123112, dTS: 160, Seq change: 975, TS Err change: in +0, out +0
-Stats: Jitter = 0, Transit = -144000
-In TS: 160160, dTS: 160, Seq: 1001
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 0, Transit = -144000
-In TS: 160320, dTS: 160, Seq: 1002
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 0, Transit = -144000
-Testing packet error detection, patch SSRC, patch timestamps.
-Output SSRC changed to 11223344
-In TS: 0, dTS: 0, Seq: 0
-Out TS change: 0, dTS: 0, Seq change: 0, TS Err change: in +0, out +0
-Stats: Jitter = 0, Transit = 0
-In TS: 160, dTS: 160, Seq: 1
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 0, Transit = 0
-In TS: 320, dTS: 160, Seq: 2
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 0, Transit = 0
-In TS: 320, dTS: 160, Seq: 3
-Out TS change: 0, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 10, Transit = 160
-In TS: 480, dTS: 160, Seq: 4
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 9, Transit = 160
-In TS: 640, dTS: 160, Seq: 5
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 8, Transit = 160
-In TS: 960, dTS: 320, Seq: 6
-Out TS change: 320, dTS: 320, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 18, Transit = 0
-In TS: 1120, dTS: 160, Seq: 7
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 17, Transit = 0
-In TS: 1280, dTS: 160, Seq: 8
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 16, Transit = 0
-In TS: 1400, dTS: 120, Seq: 9
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +1, out +0
-Stats: Jitter = 17, Transit = 40
-In TS: 1560, dTS: 160, Seq: 10
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 16, Transit = 40
-In TS: 1720, dTS: 160, Seq: 11
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 15, Transit = 40
-In TS: 34688, dTS: 0, Seq: 12
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 0, Transit = -32768
-In TS: 34848, dTS: 160, Seq: 13
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 0, Transit = -32768
-In TS: 35008, dTS: 160, Seq: 14
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 0, Transit = -32768
-In TS: 35128, dTS: 120, Seq: 15
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +1, out +0
-Stats: Jitter = 2, Transit = -32728
-In TS: 35288, dTS: 160, Seq: 16
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 2, Transit = -32728
-In TS: 35448, dTS: 160, Seq: 17
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 2, Transit = -32728
-In TS: 35768, dTS: 160, Seq: 19
-Out TS change: 320, dTS: 160, Seq change: 2, TS Err change: in +0, out +0
-Stats: Jitter = 12, Transit = -32888
-In TS: 35928, dTS: 160, Seq: 20
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 11, Transit = -32888
-In TS: 36088, dTS: 160, Seq: 21
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 20, Transit = -33048
-In TS: 36088, dTS: 160, Seq: 21
-Out TS change: 0, dTS: 160, Seq change: 0, TS Err change: in +0, out +0
-Stats: Jitter = 29, Transit = -32888
-In TS: 36248, dTS: 160, Seq: 22
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 27, Transit = -32888
-In TS: 36408, dTS: 160, Seq: 23
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 25, Transit = -32888
-In TS: 36568, dTS: 160, Seq: 23
-Out TS change: 160, dTS: 160, Seq change: 0, TS Err change: in +1, out +1
-Stats: Jitter = 24, Transit = -32888
-In TS: 36728, dTS: 160, Seq: 24
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 22, Transit = -32888
-In TS: 36888, dTS: 160, Seq: 25
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 21, Transit = -32888
-In TS: 160000, dTS: 0, Seq: 1000
-Out TS change: 12000, dTS: 12000, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 0, Transit = -144000
-In TS: 160160, dTS: 160, Seq: 1001
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 0, Transit = -144000
-In TS: 160320, dTS: 160, Seq: 1002
-Out TS change: 160, dTS: 160, Seq change: 1, TS Err change: in +0, out +0
-Stats: Jitter = 0, Transit = -144000
-Testing multiple payload types
-Testing no sequence flow on initial packet
-Testing no rtpmap name
-Done

tests/legacy_mgcp/mgcp_transcoding_test.c

@@ -1,662 +0,0 @@
-#include <stdlib.h>
-#include <unistd.h>
-#include <stdio.h>
-#include <string.h>
-#include <err.h>
-#include <stdint.h>
-#include <errno.h>
-
-#include <osmocom/core/talloc.h>
-#include <osmocom/core/application.h>
-
-#include <osmocom/netif/rtp.h>
-
-#include <osmocom/legacy_mgcp/mgcp.h>
-#include <osmocom/legacy_mgcp/mgcp_internal.h>
-
-#include "bscconfig.h"
-#ifndef BUILD_MGCP_TRANSCODING
-#error "Requires MGCP transcoding enabled (see --enable-mgcp-transcoding)"
-#endif
-
-#include <osmocom/legacy_mgcp/mgcp_transcode.h>
-
-uint8_t *audio_frame_l16[] = {
-};
-
-struct rtp_packets {
-	float t;
-	int len;
-	char *data;
-};
-
-struct rtp_packets audio_packets_l16[] = {
-	/* RTP: SeqNo=1, TS=160 */
-	{0.020000, 332,
-		"\x80\x0B\x00\x01\x00\x00\x00\xA0\x11\x22\x33\x44"
-		"\x00\x00\x40\x13\x5A\x9E\x40\x13\x00\x00\xBF\xED\xA5\x62\xBF\xED"
-		"\x00\x00\x40\x13\x5A\x9E\x40\x13\x00\x00\xBF\xED\xA5\x62\xBF\xED"
-		"\x00\x00\x40\x13\x5A\x9E\x40\x13\x00\x00\xBF\xED\xA5\x62\xBF\xED"
-		"\x00\x00\x40\x13\x5A\x9E\x40\x13\x00\x00\xBF\xED\xA5\x62\xBF\xED"
-		"\x00\x00\x40\x13\x5A\x9E\x40\x13\x00\x00\xBF\xED\xA5\x62\xBF\xED"
-		"\x00\x00\x40\x13\x5A\x9E\x40\x13\x00\x00\xBF\xED\xA5\x62\xBF\xED"
-		"\x00\x00\x40\x13\x5A\x9E\x40\x13\x00\x00\xBF\xED\xA5\x62\xBF\xED"
-		"\x00\x00\x40\x13\x5A\x9E\x40\x13\x00\x00\xBF\xED\xA5\x62\xBF\xED"
-		"\x00\x00\x40\x13\x5A\x9E\x40\x13\x00\x00\xBF\xED\xA5\x62\xBF\xED"
-		"\x00\x00\x40\x13\x5A\x9E\x40\x13\x00\x00\xBF\xED\xA5\x62\xBF\xED"
-		"\x00\x00\x40\x13\x5A\x9E\x40\x13\x00\x00\xBF\xED\xA5\x62\xBF\xED"
-		"\x00\x00\x40\x13\x5A\x9E\x40\x13\x00\x00\xBF\xED\xA5\x62\xBF\xED"
-		"\x00\x00\x40\x13\x5A\x9E\x40\x13\x00\x00\xBF\xED\xA5\x62\xBF\xED"
-		"\x00\x00\x40\x13\x5A\x9E\x40\x13\x00\x00\xBF\xED\xA5\x62\xBF\xED"
-		"\x00\x00\x40\x13\x5A\x9E\x40\x13\x00\x00\xBF\xED\xA5\x62\xBF\xED"
-		"\x00\x00\x40\x13\x5A\x9E\x40\x13\x00\x00\xBF\xED\xA5\x62\xBF\xED"
-		"\x00\x00\x40\x13\x5A\x9E\x40\x13\x00\x00\xBF\xED\xA5\x62\xBF\xED"
-		"\x00\x00\x40\x13\x5A\x9E\x40\x13\x00\x00\xBF\xED\xA5\x62\xBF\xED"
-		"\x00\x00\x40\x13\x5A\x9E\x40\x13\x00\x00\xBF\xED\xA5\x62\xBF\xED"
-		"\x00\x00\x40\x13\x5A\x9E\x40\x13\x00\x00\xBF\xED\xA5\x62\xBF\xED"
-	},
-};
-
-struct rtp_packets audio_packets_gsm[] = {
-	/* RTP: SeqNo=1, TS=160 */
-	{0.020000, 45,
-		"\x80\x03\x00\x01\x00\x00\x00\xA0\x11\x22\x33\x44"
-		"\xD4\x7C\xE3\xE9\x62\x50\x39\xF0\xF8\xB4\x68\xEA\x6C\x0E\x81\x1B"
-		"\x56\x2A\xD5\xBC\x69\x9C\xD1\xF0\x66\x7A\xEC\x49\x7A\x33\x3D\x0A"
-		"\xDE"
-	},
-};
-
-struct rtp_packets audio_packets_gsm_invalid_size[] = {
-	/* RTP: SeqNo=1, TS=160 */
-	{0.020000, 41,
-		"\x80\x03\x00\x01\x00\x00\x00\xA0\x11\x22\x33\x44"
-		"\xD4\x7C\xE3\xE9\x62\x50\x39\xF0\xF8\xB4\x68\xEA\x6C\x0E\x81\x1B"
-		"\x56\x2A\xD5\xBC\x69\x9C\xD1\xF0\x66\x7A\xEC\x49\x7A\x33\x3D\x0A"
-		"\xDE"
-	},
-};
-
-struct rtp_packets audio_packets_gsm_invalid_data[] = {
-	/* RTP: SeqNo=1, TS=160 */
-	{0.020000, 45,
-		"\x80\x03\x00\x01\x00\x00\x00\xA0\x11\x22\x33\x44"
-		"\xEE\xEE\xEE\xEE\xEE\xEE\xEE\xEE\xEE\xEE\xEE\xEE\xEE\xEE\xEE\xEE"
-		"\xEE\xEE\xEE\xEE\xEE\xEE\xEE\xEE\xEE\xEE\xEE\xEE\xEE\xEE\xEE\xEE"
-		"\xEE"
-	},
-};
-
-struct rtp_packets audio_packets_gsm_invalid_ptype[] = {
-	/* RTP: SeqNo=1, TS=160 */
-	{0.020000, 45,
-		"\x80\x08\x00\x01\x00\x00\x00\xA0\x11\x22\x33\x44"
-		"\xD4\x7C\xE3\xE9\x62\x50\x39\xF0\xF8\xB4\x68\xEA\x6C\x0E\x81\x1B"
-		"\x56\x2A\xD5\xBC\x69\x9C\xD1\xF0\x66\x7A\xEC\x49\x7A\x33\x3D\x0A"
-		"\xDE"
-	},
-};
-
-struct rtp_packets audio_packets_g729[] = {
-	/* RTP: SeqNo=1, TS=160 */
-	{0.020000, 32,
-		"\x80\x12\x00\x01\x00\x00\x00\xA0\x11\x22\x33\x44"
-		"\xAF\xC2\x81\x40\x00\xFA\xCE\xA4\x21\x7C\xC5\xC3\x4F\xA5\x98\xF5"
-		"\xB2\x95\xC4\xAD"
-	},
-};
-
-struct rtp_packets audio_packets_pcma[] = {
-	/* RTP: SeqNo=1, TS=160 */
-	{0.020000, 172,
-		"\x80\x08\x00\x01\x00\x00\x00\xA0\x11\x22\x33\x44"
-		"\xD5\xA5\xA3\xA5\xD5\x25\x23\x25\xD5\xA5\xA3\xA5\xD5\x25\x23\x25"
-		"\xD5\xA5\xA3\xA5\xD5\x25\x23\x25\xD5\xA5\xA3\xA5\xD5\x25\x23\x25"
-		"\xD5\xA5\xA3\xA5\xD5\x25\x23\x25\xD5\xA5\xA3\xA5\xD5\x25\x23\x25"
-		"\xD5\xA5\xA3\xA5\xD5\x25\x23\x25\xD5\xA5\xA3\xA5\xD5\x25\x23\x25"
-		"\xD5\xA5\xA3\xA5\xD5\x25\x23\x25\xD5\xA5\xA3\xA5\xD5\x25\x23\x25"
-		"\xD5\xA5\xA3\xA5\xD5\x25\x23\x25\xD5\xA5\xA3\xA5\xD5\x25\x23\x25"
-		"\xD5\xA5\xA3\xA5\xD5\x25\x23\x25\xD5\xA5\xA3\xA5\xD5\x25\x23\x25"
-		"\xD5\xA5\xA3\xA5\xD5\x25\x23\x25\xD5\xA5\xA3\xA5\xD5\x25\x23\x25"
-		"\xD5\xA5\xA3\xA5\xD5\x25\x23\x25\xD5\xA5\xA3\xA5\xD5\x25\x23\x25"
-		"\xD5\xA5\xA3\xA5\xD5\x25\x23\x25\xD5\xA5\xA3\xA5\xD5\x25\x23\x25"
-	},
-	/* RTP: SeqNo=26527, TS=232640 */
-	{0.020000, 92,
-		"\x80\x08\x67\x9f\x00\x03\x8c\xc0\x04\xaa\x67\x9f\xd5\xd5\xd5\xd5"
-		"\xd5\xd5\xd5\xd5\xd5\xd5\xd5\xd5\xd5\xd5\xd5\xd5\xd5\xd5\xd5\xd5"
-		"\xd5\xd5\xd5\xd5\xd5\xd5\xd5\xd5\xd5\xd5\xd5\xd5\xd5\xd5\xd5\xd5"
-		"\xd5\xd5\xd5\xd5\xd5\xd5\xd5\xd5\xd5\xd5\xd5\xd5\xd5\xd5\xd5\xd5"
-		"\xd5\xd5\xd5\xd5\xd5\xd5\x55\x55\xd5\xd5\x55\x55\xd5\xd5\x55\x55"
-		"\xd5\xd5\xd5\x55\x55\xd5\xd5\xd5\x55\x55\xd5\xd5"
-	},
-	/* RTP: SeqNo=26528, TS=232720 */
-	{0.020000, 92,
-		"\x80\x08\x67\xa0\x00\x03\x8d\x10\x04\xaa\x67\x9f\x55\xd5\xd5\x55"
-		"\xd5\x55\xd5\xd5\xd5\x55\xd5\x55\xd5\xd5\x55\xd5\x55\xd5\x55\xd5"
-		"\x55\x55\xd5\x55\xd5\xd5\x55\x55\x55\x55\x55\xd5\xd5\x55\xd5\xd5"
-		"\xd5\x55\xd5\xd5\xd5\x55\x54\x55\xd5\xd5\x55\xd5\xd5\xd5\xd5\x55"
-		"\x54\x55\xd5\x55\xd5\x55\x55\x55\x55\x55\xd5\xd5\xd5\xd5\xd5\xd4"
-		"\xd5\x54\x55\xd5\xd4\xd5\x54\xd5\x55\xd5\xd5\xd5"
-	},
-};
-
-
-
-static int audio_name_to_type(const char *name)
-{
-	if (!strcasecmp(name, "gsm"))
-		return 3;
-#ifdef HAVE_BCG729
-	else if (!strcasecmp(name, "g729"))
-		return 18;
-#endif
-	else if (!strcasecmp(name, "pcma"))
-		return 8;
-	else if (!strcasecmp(name, "l16"))
-		return 11;
-	return -1;
-}
-
-int mgcp_get_trans_frame_size(void *state_, int nsamples, int dst);
-
-static int given_configured_endpoint(int in_samples, int out_samples,
-				const char *srcfmt, const char *dstfmt,
-				void **out_ctx, struct mgcp_endpoint **out_endp)
-{
-	int rc;
-	struct mgcp_rtp_end *dst_end;
-	struct mgcp_rtp_end *src_end;
-	struct mgcp_config *cfg;
-	struct mgcp_trunk_config *tcfg;
-	struct mgcp_endpoint *endp;
-
-	cfg = mgcp_config_alloc();
-	tcfg = talloc_zero(cfg, struct mgcp_trunk_config);
-	endp = talloc_zero(tcfg, struct mgcp_endpoint);
-
-	cfg->setup_rtp_processing_cb = mgcp_transcoding_setup;
-	cfg->rtp_processing_cb = mgcp_transcoding_process_rtp;
-	cfg->get_net_downlink_format_cb = mgcp_transcoding_net_downlink_format;
-
-	tcfg->endpoints = endp;
-	tcfg->number_endpoints = 1;
-	tcfg->cfg = cfg;
-	endp->tcfg = tcfg;
-	endp->cfg = cfg;
-	mgcp_initialize_endp(endp);
-
-	dst_end = &endp->bts_end;
-	dst_end->codec.payload_type = audio_name_to_type(dstfmt);
-
-	src_end = &endp->net_end;
-	src_end->codec.payload_type = audio_name_to_type(srcfmt);
-
-	if (out_samples) {
-		dst_end->codec.frame_duration_den = dst_end->codec.rate;
-		dst_end->codec.frame_duration_num = out_samples;
-		dst_end->frames_per_packet = 1;
-		dst_end->force_output_ptime = 1;
-	}
-
-	rc = mgcp_transcoding_setup(endp, dst_end, src_end);
-	if (rc < 0) {
-		printf("setup failed: %s", strerror(-rc));
-		abort();
-	}
-
-	*out_ctx = cfg;
-	*out_endp = endp;
-	return 0;
-}
-
-
-static int transcode_test(const char *srcfmt, const char *dstfmt,
-			  uint8_t *src_pkts, size_t src_pkt_size)
-{
-	char buf[4096] = {0x80, 0};
-	void *ctx;
-
-	struct mgcp_rtp_end *dst_end;
-	struct mgcp_process_rtp_state *state;
-	struct mgcp_endpoint *endp;
-	int in_size;
-	const int in_samples = 160;
-	int len, cont;
-
-	printf("== Transcoding test ==\n");
-	printf("converting %s -> %s\n", srcfmt, dstfmt);
-
-	given_configured_endpoint(in_samples, 0, srcfmt, dstfmt, &ctx, &endp);
-
-	dst_end = &endp->bts_end;
-	state = dst_end->rtp_process_data;
-	OSMO_ASSERT(state != NULL);
-
-	in_size = mgcp_transcoding_get_frame_size(state, in_samples, 0);
-	OSMO_ASSERT(sizeof(buf) >= in_size + 12);
-
-	memcpy(buf, src_pkts, src_pkt_size);
-
-	len = src_pkt_size;
-
-	cont = mgcp_transcoding_process_rtp(endp, dst_end,
-					    buf, &len, sizeof(buf));
-	if (cont < 0) {
-		printf("Nothing encoded due: %s\n", strerror(-cont));
-		talloc_free(ctx);
-		return -1;
-	}
-
-	if (len < 24) {
-		printf("encoded: %s\n", osmo_hexdump((unsigned char *)buf, len));
-	} else {
-		const char *str = osmo_hexdump((unsigned char *)buf, len);
-		int i = 0;
-		const int prefix = 4;
-		const int cutlen = 48;
-		int nchars = 0;
-
-		printf("encoded:\n");
-		do {
-			nchars = printf("%*s%-.*s", prefix, "", cutlen, str + i);
-			i += nchars - prefix;
-			printf("\n");
-		} while (nchars - prefix >= cutlen);
-	}
-	printf("counted: %d\n", cont);
-	talloc_free(ctx);
-	return 0;
-}
-
-static void test_rtp_seq_state(void)
-{
-	char buf[4096];
-	int len;
-	int cont;
-	void *ctx;
-	struct mgcp_endpoint *endp;
-	struct mgcp_process_rtp_state *state;
-	struct rtp_hdr *hdr;
-	uint32_t ts_no;
-	uint16_t seq_no;
-
-	given_configured_endpoint(160, 0, "pcma", "l16", &ctx, &endp);
-	state = endp->bts_end.rtp_process_data;
-	OSMO_ASSERT(!state->is_running);
-	OSMO_ASSERT(state->next_seq == 0);
-	OSMO_ASSERT(state->next_time == 0);
-
-	/* initialize packet */
-	len = audio_packets_pcma[0].len;
-	memcpy(buf, audio_packets_pcma[0].data, len);
-	cont = mgcp_transcoding_process_rtp(endp, &endp->bts_end, buf, &len, len);
-	OSMO_ASSERT(cont >= 0);
-	OSMO_ASSERT(state->is_running);
-	OSMO_ASSERT(state->next_seq == 2);
-	OSMO_ASSERT(state->next_time == 240);
-
-	/* verify that the right timestamp was written */
-	OSMO_ASSERT(len == audio_packets_pcma[0].len);
-	hdr = (struct rtp_hdr *) &buf[0];
-
-	memcpy(&ts_no, &hdr->timestamp, sizeof(ts_no));
-	OSMO_ASSERT(htonl(ts_no) == 160);
-	memcpy(&seq_no, &hdr->sequence, sizeof(seq_no));
-	OSMO_ASSERT(htons(seq_no) == 1);
-	/* Check the right sequence number is written */
-	state->next_seq = 1234;
-	len = audio_packets_pcma[0].len;
-	memcpy(buf, audio_packets_pcma[0].data, len);
-	cont = mgcp_transcoding_process_rtp(endp, &endp->bts_end, buf, &len, len);
-	OSMO_ASSERT(cont >= 0);
-	OSMO_ASSERT(len == audio_packets_pcma[0].len);
-	hdr = (struct rtp_hdr *) &buf[0];
-
-	memcpy(&seq_no, &hdr->sequence, sizeof(seq_no));
-	OSMO_ASSERT(htons(seq_no) == 1234);
-
-	talloc_free(ctx);
-}
-
-static void test_transcode_result(void)
-{
-	char buf[4096];
-	int len, res;
-	void *ctx;
-	struct mgcp_endpoint *endp;
-	struct mgcp_process_rtp_state *state;
-
-	{
-		/* from GSM to PCMA and same ptime */
-		given_configured_endpoint(160, 0, "gsm", "pcma", &ctx, &endp);
-		state = endp->bts_end.rtp_process_data;
-
-		/* result */
-		len = audio_packets_gsm[0].len;
-		memcpy(buf, audio_packets_gsm[0].data, len);
-		res = mgcp_transcoding_process_rtp(endp, &endp->bts_end, buf, &len, ARRAY_SIZE(buf));
-		OSMO_ASSERT(res == sizeof(struct rtp_hdr));
-		OSMO_ASSERT(state->sample_cnt == 0);
-
-		len = res;
-		res = mgcp_transcoding_process_rtp(endp, &endp->bts_end, buf, &len, ARRAY_SIZE(buf));
-		OSMO_ASSERT(res == -ENOMSG);
-
-		talloc_free(ctx);
-	}
-
-	{
-		/* from GSM to PCMA and same ptime */
-		given_configured_endpoint(160, 160, "gsm", "pcma", &ctx, &endp);
-		state = endp->bts_end.rtp_process_data;
-
-		/* result */
-		len = audio_packets_gsm[0].len;
-		memcpy(buf, audio_packets_gsm[0].data, len);
-		res = mgcp_transcoding_process_rtp(endp, &endp->bts_end, buf, &len, ARRAY_SIZE(buf));
-		OSMO_ASSERT(res == sizeof(struct rtp_hdr));
-		OSMO_ASSERT(state->sample_cnt == 0);
-
-		len = res;
-		res = mgcp_transcoding_process_rtp(endp, &endp->bts_end, buf, &len, ARRAY_SIZE(buf));
-		OSMO_ASSERT(res == -EAGAIN);
-
-		talloc_free(ctx);
-	}
-
-	{
-		/* from PCMA to GSM and wrong different ptime */
-		given_configured_endpoint(80, 160, "pcma", "gsm", &ctx, &endp);
-		state = endp->bts_end.rtp_process_data;
-
-		/* Add the first sample */
-		len = audio_packets_pcma[1].len;
-		memcpy(buf, audio_packets_pcma[1].data, len);
-		res = mgcp_transcoding_process_rtp(endp, &endp->bts_end, buf, &len, ARRAY_SIZE(buf));
-		OSMO_ASSERT(state->sample_cnt == 80);
-		OSMO_ASSERT(state->next_time == 232640);
-		OSMO_ASSERT(res < 0);
-
-		/* Add the second sample and it should be consumable */
-		len = audio_packets_pcma[2].len;
-		memcpy(buf, audio_packets_pcma[2].data, len);
-		res = mgcp_transcoding_process_rtp(endp, &endp->bts_end, buf, &len, ARRAY_SIZE(buf));
-		OSMO_ASSERT(state->sample_cnt == 0);
-		OSMO_ASSERT(state->next_time == 232640 + 80 + 160);
-		OSMO_ASSERT(res == sizeof(struct rtp_hdr));
-
-		talloc_free(ctx);
-	}
-
-	{
-		/* from PCMA to GSM with a big time jump */
-		struct rtp_hdr *hdr;
-		uint32_t ts;
-
-		given_configured_endpoint(80, 160, "pcma", "gsm", &ctx, &endp);
-		state = endp->bts_end.rtp_process_data;
-
-		/* Add the first sample */
-		len = audio_packets_pcma[1].len;
-		memcpy(buf, audio_packets_pcma[1].data, len);
-		res = mgcp_transcoding_process_rtp(endp, &endp->bts_end, buf, &len, ARRAY_SIZE(buf));
-		OSMO_ASSERT(state->sample_cnt == 80);
-		OSMO_ASSERT(state->next_time == 232640);
-		OSMO_ASSERT(state->next_seq == 26527);
-		OSMO_ASSERT(res < 0);
-
-		/* Add a skip to the packet to force a 'resync' */
-		len = audio_packets_pcma[2].len;
-		memcpy(buf, audio_packets_pcma[2].data, len);
-		hdr = (struct rtp_hdr *) &buf[0];
-		/* jump the time and add alignment error */
-		ts = ntohl(hdr->timestamp) + 123 * 80 + 2;
-		hdr->timestamp = htonl(ts);
-		res = mgcp_transcoding_process_rtp(endp, &endp->bts_end, buf, &len, ARRAY_SIZE(buf));
-		OSMO_ASSERT(res < 0);
-		OSMO_ASSERT(state->sample_cnt == 80);
-		OSMO_ASSERT(state->next_time == ts);
-		OSMO_ASSERT(state->next_seq == 26527);
-		/* TODO: this can create alignment errors */
-
-
-		/* Now attempt to consume 160 samples */
-		len = audio_packets_pcma[2].len;
-		memcpy(buf, audio_packets_pcma[2].data, len);
-		hdr = (struct rtp_hdr *) &buf[0];
-		ts += 80;
-		hdr->timestamp = htonl(ts);
-		res = mgcp_transcoding_process_rtp(endp, &endp->bts_end, buf, &len, ARRAY_SIZE(buf));
-		OSMO_ASSERT(res == 12);
-		OSMO_ASSERT(state->sample_cnt == 0);
-		OSMO_ASSERT(state->next_time == ts + 160);
-		OSMO_ASSERT(state->next_seq == 26528);
-
-		talloc_free(ctx);
-	}
-}
-
-static void test_transcode_change(void)
-{
-	char buf[4096] = {0x80, 0};
-	void *ctx;
-
-	struct mgcp_endpoint *endp;
-	struct mgcp_process_rtp_state *state;
-	struct rtp_hdr *hdr;
-
-	int len, res;
-
-	{
-		/* from GSM to PCMA and same ptime */
-		printf("Testing Initial L16->GSM, PCMA->GSM\n");
-		given_configured_endpoint(160, 0, "l16", "gsm", &ctx, &endp);
-		endp->net_end.alt_codec = endp->net_end.codec;
-		endp->net_end.alt_codec.payload_type = audio_name_to_type("pcma");
-		state = endp->bts_end.rtp_process_data;
-
-		/* initial transcoding work */
-		OSMO_ASSERT(state->src_fmt == AF_L16);
-		OSMO_ASSERT(state->dst_fmt == AF_GSM);
-		OSMO_ASSERT(endp->net_end.alt_codec.payload_type == 8);
-		OSMO_ASSERT(endp->net_end.codec.payload_type == 11);
-
-		/* result */
-		len = audio_packets_pcma[0].len;
-		memcpy(buf, audio_packets_pcma[0].data, len);
-		res = mgcp_transcoding_process_rtp(endp, &endp->bts_end, buf, &len, ARRAY_SIZE(buf));
-		state = endp->bts_end.rtp_process_data;
-		OSMO_ASSERT(res == sizeof(struct rtp_hdr));
-		OSMO_ASSERT(state->sample_cnt == 0);
-		OSMO_ASSERT(state->src_fmt == AF_PCMA);
-		OSMO_ASSERT(state->dst_fmt == AF_GSM);
-		OSMO_ASSERT(endp->net_end.alt_codec.payload_type == 11);
-		OSMO_ASSERT(endp->net_end.codec.payload_type == 8);
-
-		len = res;
-		res = mgcp_transcoding_process_rtp(endp, &endp->bts_end, buf, &len, ARRAY_SIZE(buf));
-		OSMO_ASSERT(res == -ENOMSG);
-		OSMO_ASSERT(state == endp->bts_end.rtp_process_data);
-
-
-		/* now check that comfort noise doesn't change anything */
-		len = audio_packets_pcma[1].len;
-		memcpy(buf, audio_packets_pcma[1].data, len);
-		hdr = (struct rtp_hdr *) buf;
-		hdr->payload_type = 12;
-		res = mgcp_transcoding_process_rtp(endp, &endp->bts_end, buf, &len, ARRAY_SIZE(buf));
-		OSMO_ASSERT(state == endp->bts_end.rtp_process_data);
-		OSMO_ASSERT(state->sample_cnt == 80);
-		OSMO_ASSERT(state->src_fmt == AF_PCMA);
-		OSMO_ASSERT(state->dst_fmt == AF_GSM);
-		OSMO_ASSERT(endp->net_end.alt_codec.payload_type == 11);
-		OSMO_ASSERT(endp->net_end.codec.payload_type == 8);
-
-		talloc_free(ctx);
-	}
-}
-
-static int test_repacking(int in_samples, int out_samples, int no_transcode)
-{
-	char buf[4096] = {0x80, 0};
-	int cc;
-	struct mgcp_endpoint *endp;
-	void *ctx;
-
-	struct mgcp_process_rtp_state *state;
-	int in_cnt;
-	int out_size;
-	int in_size;
-	uint32_t ts = 0;
-	uint16_t seq = 0;
-	const char *srcfmt = "pcma";
-	const char *dstfmt = no_transcode ? "pcma" : "l16";
-
-	printf("== Transcoding test ==\n");
-	printf("converting %s -> %s\n", srcfmt, dstfmt);
-
-	given_configured_endpoint(in_samples, out_samples, srcfmt, dstfmt, &ctx, &endp);
-
-	state = endp->bts_end.rtp_process_data;
-	OSMO_ASSERT(state != NULL);
-
-	in_size = mgcp_transcoding_get_frame_size(state, in_samples, 0);
-	OSMO_ASSERT(sizeof(buf) >= in_size + 12);
-
-	out_size = mgcp_transcoding_get_frame_size(state, -1, 1);
-	OSMO_ASSERT(sizeof(buf) >= out_size + 12);
-
-	buf[1] = endp->net_end.codec.payload_type;
-	*(uint16_t*)(buf+2) = htons(1);
-	*(uint32_t*)(buf+4) = htonl(0);
-	*(uint32_t*)(buf+8) = htonl(0xaabbccdd);
-
-	for (in_cnt = 0; in_cnt < 16; in_cnt++) {
-		int cont;
-		int len;
-
-		/* fake PCMA data */
-		printf("generating %d %s input samples\n", in_samples, srcfmt);
-		for (cc = 0; cc < in_samples; cc++)
-			buf[12+cc] = cc;
-
-		*(uint16_t*)(buf+2) = htonl(seq);
-		*(uint32_t*)(buf+4) = htonl(ts);
-
-		seq += 1;
-		ts += in_samples;
-
-		cc += 12; /* include RTP header */
-
-		len = cc;
-
-		do {
-			cont = mgcp_transcoding_process_rtp(endp, &endp->bts_end,
-							    buf, &len, sizeof(buf));
-			if (cont == -EAGAIN) {
-				fprintf(stderr, "Got EAGAIN\n");
-				break;
-			}
-
-			if (cont < 0) {
-				printf("processing failed: %s", strerror(-cont));
-				abort();
-			}
-
-			len -= 12; /* ignore RTP header */
-
-			printf("got %d %s output frames (%d octets) count=%d\n",
-			       len / out_size, dstfmt, len, cont);
-
-			len = cont;
-		} while (len > 0);
-	}
-
-	talloc_free(ctx);
-	return 0;
-}
-
-static const struct log_info_cat log_categories[] = {
-};
-
-const struct log_info log_info = {
-        .cat = log_categories,
-        .num_cat = ARRAY_SIZE(log_categories),
-};
-
-int main(int argc, char **argv)
-{
-	int rc;
-	void *ctx = talloc_named_const(NULL, 0, "mgcp_transcoding_test");
-	osmo_init_logging2(ctx, &log_info);
-
-	printf("=== Transcoding Good Cases ===\n");
-
-	transcode_test("l16", "l16",
-		       (uint8_t *)audio_packets_l16[0].data,
-		       audio_packets_l16[0].len);
-	transcode_test("l16", "gsm",
-		       (uint8_t *)audio_packets_l16[0].data,
-		       audio_packets_l16[0].len);
-	transcode_test("l16", "pcma",
-		       (uint8_t *)audio_packets_l16[0].data,
-		       audio_packets_l16[0].len);
-	transcode_test("gsm", "l16",
-		       (uint8_t *)audio_packets_gsm[0].data,
-		       audio_packets_gsm[0].len);
-	transcode_test("gsm", "gsm",
-		       (uint8_t *)audio_packets_gsm[0].data,
-		       audio_packets_gsm[0].len);
-	transcode_test("gsm", "pcma",
-		       (uint8_t *)audio_packets_gsm[0].data,
-		       audio_packets_gsm[0].len);
-	transcode_test("pcma", "l16",
-		       (uint8_t *)audio_packets_pcma[0].data,
-		       audio_packets_pcma[0].len);
-	transcode_test("pcma", "gsm",
-		       (uint8_t *)audio_packets_pcma[0].data,
-		       audio_packets_pcma[0].len);
-	transcode_test("pcma", "pcma",
-		       (uint8_t *)audio_packets_pcma[0].data,
-		       audio_packets_pcma[0].len);
-
-	printf("=== Transcoding Bad Cases ===\n");
-
-	printf("Invalid size:\n");
-	rc = transcode_test("gsm", "pcma",
-		       (uint8_t *)audio_packets_gsm_invalid_size[0].data,
-		       audio_packets_gsm_invalid_size[0].len);
-	OSMO_ASSERT(rc < 0);
-
-	printf("Invalid data:\n");
-	rc = transcode_test("gsm", "pcma",
-		       (uint8_t *)audio_packets_gsm_invalid_data[0].data,
-		       audio_packets_gsm_invalid_data[0].len);
-	OSMO_ASSERT(rc < 0);
-
-	printf("Invalid payload type:\n");
-	rc = transcode_test("gsm", "pcma",
-		       (uint8_t *)audio_packets_gsm_invalid_ptype[0].data,
-		       audio_packets_gsm_invalid_ptype[0].len);
-	OSMO_ASSERT(rc == 0);
-
-	printf("=== Repacking ===\n");
-
-	test_repacking(160, 160, 0);
-	test_repacking(160, 160, 1);
-	test_repacking(160, 80, 0);
-	test_repacking(160, 80, 1);
-	test_repacking(160, 320, 0);
-	test_repacking(160, 320, 1);
-	test_repacking(160, 240, 0);
-	test_repacking(160, 240, 1);
-	test_repacking(160, 100, 0);
-	test_repacking(160, 100, 1);
-	test_rtp_seq_state();
-	test_transcode_result();
-	test_transcode_change();
-
-	return 0;
-}
-

tests/legacy_mgcp/mgcp_transcoding_test.ok

@@ -1,539 +0,0 @@
-=== Transcoding Good Cases ===
-== Transcoding test ==
-converting l16 -> l16
-encoded:
-    80 0b 00 01 00 00 00 a0 11 22 33 44 00 00 40 13 
-    5a 9e 40 13 00 00 bf ed a5 62 bf ed 00 00 40 13 
-    5a 9e 40 13 00 00 bf ed a5 62 bf ed 00 00 40 13 
-    5a 9e 40 13 00 00 bf ed a5 62 bf ed 00 00 40 13 
-    5a 9e 40 13 00 00 bf ed a5 62 bf ed 00 00 40 13 
-    5a 9e 40 13 00 00 bf ed a5 62 bf ed 00 00 40 13 
-    5a 9e 40 13 00 00 bf ed a5 62 bf ed 00 00 40 13 
-    5a 9e 40 13 00 00 bf ed a5 62 bf ed 00 00 40 13 
-    5a 9e 40 13 00 00 bf ed a5 62 bf ed 00 00 40 13 
-    5a 9e 40 13 00 00 bf ed a5 62 bf ed 00 00 40 13 
-    5a 9e 40 13 00 00 bf ed a5 62 bf ed 00 00 40 13 
-    5a 9e 40 13 00 00 bf ed a5 62 bf ed 00 00 40 13 
-    5a 9e 40 13 00 00 bf ed a5 62 bf ed 00 00 40 13 
-    5a 9e 40 13 00 00 bf ed a5 62 bf ed 00 00 40 13 
-    5a 9e 40 13 00 00 bf ed a5 62 bf ed 00 00 40 13 
-    5a 9e 40 13 00 00 bf ed a5 62 bf ed 00 00 40 13 
-    5a 9e 40 13 00 00 bf ed a5 62 bf ed 00 00 40 13 
-    5a 9e 40 13 00 00 bf ed a5 62 bf ed 00 00 40 13 
-    5a 9e 40 13 00 00 bf ed a5 62 bf ed 00 00 40 13 
-    5a 9e 40 13 00 00 bf ed a5 62 bf ed 00 00 40 13 
-    5a 9e 40 13 00 00 bf ed a5 62 bf ed 
-counted: 0
-== Transcoding test ==
-converting l16 -> gsm
-encoded:
-    80 0b 00 01 00 00 00 a0 11 22 33 44 d4 7c e3 e9 
-    62 50 39 f0 f8 b4 68 ea 6c 0e 81 1b 56 2a d5 bc 
-    69 9c d1 f0 66 7a ec 49 7a 33 3d 0a de 
-counted: 12
-== Transcoding test ==
-converting l16 -> pcma
-encoded:
-    80 0b 00 01 00 00 00 a0 11 22 33 44 d5 a5 a3 a5 
-    d5 25 23 25 d5 a5 a3 a5 d5 25 23 25 d5 a5 a3 a5 
-    d5 25 23 25 d5 a5 a3 a5 d5 25 23 25 d5 a5 a3 a5 
-    d5 25 23 25 d5 a5 a3 a5 d5 25 23 25 d5 a5 a3 a5 
-    d5 25 23 25 d5 a5 a3 a5 d5 25 23 25 d5 a5 a3 a5 
-    d5 25 23 25 d5 a5 a3 a5 d5 25 23 25 d5 a5 a3 a5 
-    d5 25 23 25 d5 a5 a3 a5 d5 25 23 25 d5 a5 a3 a5 
-    d5 25 23 25 d5 a5 a3 a5 d5 25 23 25 d5 a5 a3 a5 
-    d5 25 23 25 d5 a5 a3 a5 d5 25 23 25 d5 a5 a3 a5 
-    d5 25 23 25 d5 a5 a3 a5 d5 25 23 25 d5 a5 a3 a5 
-    d5 25 23 25 d5 a5 a3 a5 d5 25 23 25 
-counted: 12
-== Transcoding test ==
-converting gsm -> l16
-encoded:
-    80 03 00 01 00 00 00 a0 11 22 33 44 00 00 54 00 
-    59 f0 34 20 c4 c8 b9 f8 e2 18 f1 e8 f2 28 f0 e0 
-    46 08 4f 80 2c a0 a9 c8 80 00 c0 58 3f 80 63 c0 
-    24 b8 fa b8 f6 88 0b a0 c8 70 a8 b0 c8 c0 3b a8 
-    66 a0 2e 38 d1 f8 98 98 aa 18 e8 30 26 a0 37 40 
-    37 e8 17 00 ee 50 b7 80 b1 88 de 28 18 40 45 b0 
-    4f 48 21 d8 df 78 ae 68 ab 98 d6 b8 18 18 48 90 
-    4e 70 27 40 e8 10 b5 b0 ac 80 d4 60 14 50 48 48 
-    50 10 2a 00 ec 08 ba 00 af 58 d1 c0 10 60 45 c8 
-    54 10 30 78 f1 a8 bb 18 ad 48 ce 30 0a e8 3f 30 
-    4f 10 32 18 f6 18 bf 20 ac 30 cd 80 0b d0 43 d8 
-    55 e0 34 a0 f5 78 bc 98 ad 98 cd c8 0a 80 40 58 
-    51 c0 35 40 f9 60 c1 68 ac c8 cb 38 08 00 40 98 
-    51 e0 34 d8 fa 28 c2 f0 ae 40 c7 70 02 d0 3c a8 
-    54 78 38 a0 fc 68 c2 08 ad 50 c7 78 01 60 39 c0 
-    51 38 3a e8 00 e8 c6 38 ab d8 c4 00 fe 08 39 18 
-    50 30 39 50 01 d8 ca 70 b1 80 c4 c8 fc 58 36 40 
-    51 d8 3b 08 02 80 c8 58 b0 60 c5 a8 fb d0 33 e8 
-    4e 80 3c e0 06 10 cb 90 ae 48 c2 60 f9 58 34 08 
-    4d a0 3a a8 06 48 cf 80 b4 60 c3 e8 f7 90 30 18 
-    4d a0 3b 98 07 90 cf 18 b4 68 c4 88 
-counted: 12
-== Transcoding test ==
-converting gsm -> gsm
-encoded:
-    80 03 00 01 00 00 00 a0 11 22 33 44 d4 7c e3 e9 
-    62 50 39 f0 f8 b4 68 ea 6c 0e 81 1b 56 2a d5 bc 
-    69 9c d1 f0 66 7a ec 49 7a 33 3d 0a de 
-counted: 0
-== Transcoding test ==
-converting gsm -> pcma
-encoded:
-    80 03 00 01 00 00 00 a0 11 22 33 44 d5 a0 a3 bf 
-    38 24 08 19 1e 1b a4 a6 b3 20 2a 3a ba ad b7 60 
-    17 92 3e 20 3e b8 ac b2 32 2c 20 02 b6 be be 82 
-    04 27 26 35 8d a4 a6 b5 35 21 20 31 8d a7 a6 b6 
-    02 27 21 30 81 a7 a1 b0 06 24 21 32 85 a4 a0 bd 
-    19 24 21 3d 90 ba a6 bc 16 25 21 3c 92 a5 a0 bf 
-    10 25 21 3c 90 a5 a1 bf 6f 3a 21 3f 95 a5 a1 bf 
-    62 3b 21 39 f3 bb a0 b9 79 3b 21 39 c3 b9 a1 b8 
-    db 39 20 3b 4a b9 a1 b9 c8 3f 26 38 78 be a1 b8 
-    f1 3e 26 38 65 bc a6 bb ed 3f 21 3b 6f bf a6 b8 
-    ec 3d 27 3b 15 bd a6 b8 eb 3d 27 38 
-counted: 12
-== Transcoding test ==
-converting pcma -> l16
-encoded:
-    80 08 00 01 00 00 00 a0 11 22 33 44 00 08 42 00 
-    5a 00 42 00 00 08 be 00 a6 00 be 00 00 08 42 00 
-    5a 00 42 00 00 08 be 00 a6 00 be 00 00 08 42 00 
-    5a 00 42 00 00 08 be 00 a6 00 be 00 00 08 42 00 
-    5a 00 42 00 00 08 be 00 a6 00 be 00 00 08 42 00 
-    5a 00 42 00 00 08 be 00 a6 00 be 00 00 08 42 00 
-    5a 00 42 00 00 08 be 00 a6 00 be 00 00 08 42 00 
-    5a 00 42 00 00 08 be 00 a6 00 be 00 00 08 42 00 
-    5a 00 42 00 00 08 be 00 a6 00 be 00 00 08 42 00 
-    5a 00 42 00 00 08 be 00 a6 00 be 00 00 08 42 00 
-    5a 00 42 00 00 08 be 00 a6 00 be 00 00 08 42 00 
-    5a 00 42 00 00 08 be 00 a6 00 be 00 00 08 42 00 
-    5a 00 42 00 00 08 be 00 a6 00 be 00 00 08 42 00 
-    5a 00 42 00 00 08 be 00 a6 00 be 00 00 08 42 00 
-    5a 00 42 00 00 08 be 00 a6 00 be 00 00 08 42 00 
-    5a 00 42 00 00 08 be 00 a6 00 be 00 00 08 42 00 
-    5a 00 42 00 00 08 be 00 a6 00 be 00 00 08 42 00 
-    5a 00 42 00 00 08 be 00 a6 00 be 00 00 08 42 00 
-    5a 00 42 00 00 08 be 00 a6 00 be 00 00 08 42 00 
-    5a 00 42 00 00 08 be 00 a6 00 be 00 00 08 42 00 
-    5a 00 42 00 00 08 be 00 a6 00 be 00 
-counted: 12
-== Transcoding test ==
-converting pcma -> gsm
-encoded:
-    80 08 00 01 00 00 00 a0 11 22 33 44 d4 b9 f4 5d 
-    d9 50 5a e1 a0 cd 76 ea 52 0e 87 53 ad d4 ea a2 
-    0a 63 ca e9 60 79 e2 2a 25 d2 c0 f3 39 
-counted: 12
-== Transcoding test ==
-converting pcma -> pcma
-encoded:
-    80 08 00 01 00 00 00 a0 11 22 33 44 d5 a5 a3 a5 
-    d5 25 23 25 d5 a5 a3 a5 d5 25 23 25 d5 a5 a3 a5 
-    d5 25 23 25 d5 a5 a3 a5 d5 25 23 25 d5 a5 a3 a5 
-    d5 25 23 25 d5 a5 a3 a5 d5 25 23 25 d5 a5 a3 a5 
-    d5 25 23 25 d5 a5 a3 a5 d5 25 23 25 d5 a5 a3 a5 
-    d5 25 23 25 d5 a5 a3 a5 d5 25 23 25 d5 a5 a3 a5 
-    d5 25 23 25 d5 a5 a3 a5 d5 25 23 25 d5 a5 a3 a5 
-    d5 25 23 25 d5 a5 a3 a5 d5 25 23 25 d5 a5 a3 a5 
-    d5 25 23 25 d5 a5 a3 a5 d5 25 23 25 d5 a5 a3 a5 
-    d5 25 23 25 d5 a5 a3 a5 d5 25 23 25 d5 a5 a3 a5 
-    d5 25 23 25 d5 a5 a3 a5 d5 25 23 25 
-counted: 0
-=== Transcoding Bad Cases ===
-Invalid size:
-== Transcoding test ==
-converting gsm -> pcma
-Nothing encoded due: No message of desired type
-Invalid data:
-== Transcoding test ==
-converting gsm -> pcma
-Nothing encoded due: No message of desired type
-Invalid payload type:
-== Transcoding test ==
-converting gsm -> pcma
-encoded:
-    80 08 00 01 00 00 00 a0 11 22 33 44 d5 a0 a3 bf 
-    38 24 08 19 1e 1b a4 a6 b3 20 2a 3a ba ad b7 60 
-    17 92 3e 20 3e b8 ac b2 32 2c 20 02 b6 be be 82 
-    04 27 26 35 8d a4 a6 b5 35 21 20 31 8d a7 a6 b6 
-    02 27 21 30 81 a7 a1 b0 06 24 21 32 85 a4 a0 bd 
-    19 24 21 3d 90 ba a6 bc 16 25 21 3c 92 a5 a0 bf 
-    10 25 21 3c 90 a5 a1 bf 6f 3a 21 3f 95 a5 a1 bf 
-    62 3b 21 39 f3 bb a0 b9 79 3b 21 39 c3 b9 a1 b8 
-    db 39 20 3b 4a b9 a1 b9 c8 3f 26 38 78 be a1 b8 
-    f1 3e 26 38 65 bc a6 bb ed 3f 21 3b 6f bf a6 b8 
-    ec 3d 27 3b 15 bd a6 b8 eb 3d 27 38 
-counted: 12
-=== Repacking ===
-== Transcoding test ==
-converting pcma -> l16
-generating 160 pcma input samples
-got 2 l16 output frames (320 octets) count=12
-generating 160 pcma input samples
-got 2 l16 output frames (320 octets) count=12
-generating 160 pcma input samples
-got 2 l16 output frames (320 octets) count=12
-generating 160 pcma input samples
-got 2 l16 output frames (320 octets) count=12
-generating 160 pcma input samples
-got 2 l16 output frames (320 octets) count=12
-generating 160 pcma input samples
-got 2 l16 output frames (320 octets) count=12
-generating 160 pcma input samples
-got 2 l16 output frames (320 octets) count=12
-generating 160 pcma input samples
-got 2 l16 output frames (320 octets) count=12
-generating 160 pcma input samples
-got 2 l16 output frames (320 octets) count=12
-generating 160 pcma input samples
-got 2 l16 output frames (320 octets) count=12
-generating 160 pcma input samples
-got 2 l16 output frames (320 octets) count=12
-generating 160 pcma input samples
-got 2 l16 output frames (320 octets) count=12
-generating 160 pcma input samples
-got 2 l16 output frames (320 octets) count=12
-generating 160 pcma input samples
-got 2 l16 output frames (320 octets) count=12
-generating 160 pcma input samples
-got 2 l16 output frames (320 octets) count=12
-generating 160 pcma input samples
-got 2 l16 output frames (320 octets) count=12
-== Transcoding test ==
-converting pcma -> pcma
-generating 160 pcma input samples
-got 2 pcma output frames (160 octets) count=12
-generating 160 pcma input samples
-got 2 pcma output frames (160 octets) count=12
-generating 160 pcma input samples
-got 2 pcma output frames (160 octets) count=12
-generating 160 pcma input samples
-got 2 pcma output frames (160 octets) count=12
-generating 160 pcma input samples
-got 2 pcma output frames (160 octets) count=12
-generating 160 pcma input samples
-got 2 pcma output frames (160 octets) count=12
-generating 160 pcma input samples
-got 2 pcma output frames (160 octets) count=12
-generating 160 pcma input samples
-got 2 pcma output frames (160 octets) count=12
-generating 160 pcma input samples
-got 2 pcma output frames (160 octets) count=12
-generating 160 pcma input samples
-got 2 pcma output frames (160 octets) count=12
-generating 160 pcma input samples
-got 2 pcma output frames (160 octets) count=12
-generating 160 pcma input samples
-got 2 pcma output frames (160 octets) count=12
-generating 160 pcma input samples
-got 2 pcma output frames (160 octets) count=12
-generating 160 pcma input samples
-got 2 pcma output frames (160 octets) count=12
-generating 160 pcma input samples
-got 2 pcma output frames (160 octets) count=12
-generating 160 pcma input samples
-got 2 pcma output frames (160 octets) count=12
-== Transcoding test ==
-converting pcma -> l16
-generating 160 pcma input samples
-got 1 l16 output frames (160 octets) count=12
-got 1 l16 output frames (160 octets) count=12
-generating 160 pcma input samples
-got 1 l16 output frames (160 octets) count=12
-got 1 l16 output frames (160 octets) count=12
-generating 160 pcma input samples
-got 1 l16 output frames (160 octets) count=12
-got 1 l16 output frames (160 octets) count=12
-generating 160 pcma input samples
-got 1 l16 output frames (160 octets) count=12
-got 1 l16 output frames (160 octets) count=12
-generating 160 pcma input samples
-got 1 l16 output frames (160 octets) count=12
-got 1 l16 output frames (160 octets) count=12
-generating 160 pcma input samples
-got 1 l16 output frames (160 octets) count=12
-got 1 l16 output frames (160 octets) count=12
-generating 160 pcma input samples
-got 1 l16 output frames (160 octets) count=12
-got 1 l16 output frames (160 octets) count=12
-generating 160 pcma input samples
-got 1 l16 output frames (160 octets) count=12
-got 1 l16 output frames (160 octets) count=12
-generating 160 pcma input samples
-got 1 l16 output frames (160 octets) count=12
-got 1 l16 output frames (160 octets) count=12
-generating 160 pcma input samples
-got 1 l16 output frames (160 octets) count=12
-got 1 l16 output frames (160 octets) count=12
-generating 160 pcma input samples
-got 1 l16 output frames (160 octets) count=12
-got 1 l16 output frames (160 octets) count=12
-generating 160 pcma input samples
-got 1 l16 output frames (160 octets) count=12
-got 1 l16 output frames (160 octets) count=12
-generating 160 pcma input samples
-got 1 l16 output frames (160 octets) count=12
-got 1 l16 output frames (160 octets) count=12
-generating 160 pcma input samples
-got 1 l16 output frames (160 octets) count=12
-got 1 l16 output frames (160 octets) count=12
-generating 160 pcma input samples
-got 1 l16 output frames (160 octets) count=12
-got 1 l16 output frames (160 octets) count=12
-generating 160 pcma input samples
-got 1 l16 output frames (160 octets) count=12
-got 1 l16 output frames (160 octets) count=12
-== Transcoding test ==
-converting pcma -> pcma
-generating 160 pcma input samples
-got 1 pcma output frames (80 octets) count=12
-got 1 pcma output frames (80 octets) count=12
-generating 160 pcma input samples
-got 1 pcma output frames (80 octets) count=12
-got 1 pcma output frames (80 octets) count=12
-generating 160 pcma input samples
-got 1 pcma output frames (80 octets) count=12
-got 1 pcma output frames (80 octets) count=12
-generating 160 pcma input samples
-got 1 pcma output frames (80 octets) count=12
-got 1 pcma output frames (80 octets) count=12
-generating 160 pcma input samples
-got 1 pcma output frames (80 octets) count=12
-got 1 pcma output frames (80 octets) count=12
-generating 160 pcma input samples
-got 1 pcma output frames (80 octets) count=12
-got 1 pcma output frames (80 octets) count=12
-generating 160 pcma input samples
-got 1 pcma output frames (80 octets) count=12
-got 1 pcma output frames (80 octets) count=12
-generating 160 pcma input samples
-got 1 pcma output frames (80 octets) count=12
-got 1 pcma output frames (80 octets) count=12
-generating 160 pcma input samples
-got 1 pcma output frames (80 octets) count=12
-got 1 pcma output frames (80 octets) count=12
-generating 160 pcma input samples
-got 1 pcma output frames (80 octets) count=12
-got 1 pcma output frames (80 octets) count=12
-generating 160 pcma input samples
-got 1 pcma output frames (80 octets) count=12
-got 1 pcma output frames (80 octets) count=12
-generating 160 pcma input samples
-got 1 pcma output frames (80 octets) count=12
-got 1 pcma output frames (80 octets) count=12
-generating 160 pcma input samples
-got 1 pcma output frames (80 octets) count=12
-got 1 pcma output frames (80 octets) count=12
-generating 160 pcma input samples
-got 1 pcma output frames (80 octets) count=12
-got 1 pcma output frames (80 octets) count=12
-generating 160 pcma input samples
-got 1 pcma output frames (80 octets) count=12
-got 1 pcma output frames (80 octets) count=12
-generating 160 pcma input samples
-got 1 pcma output frames (80 octets) count=12
-got 1 pcma output frames (80 octets) count=12
-== Transcoding test ==
-converting pcma -> l16
-generating 160 pcma input samples
-generating 160 pcma input samples
-got 4 l16 output frames (640 octets) count=12
-generating 160 pcma input samples
-generating 160 pcma input samples
-got 4 l16 output frames (640 octets) count=12
-generating 160 pcma input samples
-generating 160 pcma input samples
-got 4 l16 output frames (640 octets) count=12
-generating 160 pcma input samples
-generating 160 pcma input samples
-got 4 l16 output frames (640 octets) count=12
-generating 160 pcma input samples
-generating 160 pcma input samples
-got 4 l16 output frames (640 octets) count=12
-generating 160 pcma input samples
-generating 160 pcma input samples
-got 4 l16 output frames (640 octets) count=12
-generating 160 pcma input samples
-generating 160 pcma input samples
-got 4 l16 output frames (640 octets) count=12
-generating 160 pcma input samples
-generating 160 pcma input samples
-got 4 l16 output frames (640 octets) count=12
-== Transcoding test ==
-converting pcma -> pcma
-generating 160 pcma input samples
-generating 160 pcma input samples
-got 4 pcma output frames (320 octets) count=12
-generating 160 pcma input samples
-generating 160 pcma input samples
-got 4 pcma output frames (320 octets) count=12
-generating 160 pcma input samples
-generating 160 pcma input samples
-got 4 pcma output frames (320 octets) count=12
-generating 160 pcma input samples
-generating 160 pcma input samples
-got 4 pcma output frames (320 octets) count=12
-generating 160 pcma input samples
-generating 160 pcma input samples
-got 4 pcma output frames (320 octets) count=12
-generating 160 pcma input samples
-generating 160 pcma input samples
-got 4 pcma output frames (320 octets) count=12
-generating 160 pcma input samples
-generating 160 pcma input samples
-got 4 pcma output frames (320 octets) count=12
-generating 160 pcma input samples
-generating 160 pcma input samples
-got 4 pcma output frames (320 octets) count=12
-== Transcoding test ==
-converting pcma -> l16
-generating 160 pcma input samples
-generating 160 pcma input samples
-got 3 l16 output frames (480 octets) count=12
-generating 160 pcma input samples
-generating 160 pcma input samples
-got 3 l16 output frames (480 octets) count=12
-generating 160 pcma input samples
-generating 160 pcma input samples
-got 3 l16 output frames (480 octets) count=12
-generating 160 pcma input samples
-generating 160 pcma input samples
-got 3 l16 output frames (480 octets) count=12
-generating 160 pcma input samples
-generating 160 pcma input samples
-got 3 l16 output frames (480 octets) count=12
-generating 160 pcma input samples
-generating 160 pcma input samples
-got 3 l16 output frames (480 octets) count=12
-generating 160 pcma input samples
-generating 160 pcma input samples
-got 3 l16 output frames (480 octets) count=12
-generating 160 pcma input samples
-generating 160 pcma input samples
-got 3 l16 output frames (480 octets) count=12
-== Transcoding test ==
-converting pcma -> pcma
-generating 160 pcma input samples
-generating 160 pcma input samples
-got 3 pcma output frames (240 octets) count=12
-generating 160 pcma input samples
-generating 160 pcma input samples
-got 3 pcma output frames (240 octets) count=12
-generating 160 pcma input samples
-generating 160 pcma input samples
-got 3 pcma output frames (240 octets) count=12
-generating 160 pcma input samples
-generating 160 pcma input samples
-got 3 pcma output frames (240 octets) count=12
-generating 160 pcma input samples
-generating 160 pcma input samples
-got 3 pcma output frames (240 octets) count=12
-generating 160 pcma input samples
-generating 160 pcma input samples
-got 3 pcma output frames (240 octets) count=12
-generating 160 pcma input samples
-generating 160 pcma input samples
-got 3 pcma output frames (240 octets) count=12
-generating 160 pcma input samples
-generating 160 pcma input samples
-got 3 pcma output frames (240 octets) count=12
-== Transcoding test ==
-converting pcma -> l16
-generating 160 pcma input samples
-got 1 l16 output frames (160 octets) count=12
-generating 160 pcma input samples
-got 1 l16 output frames (160 octets) count=12
-got 1 l16 output frames (160 octets) count=12
-generating 160 pcma input samples
-got 1 l16 output frames (160 octets) count=12
-got 1 l16 output frames (160 octets) count=12
-generating 160 pcma input samples
-got 1 l16 output frames (160 octets) count=12
-got 1 l16 output frames (160 octets) count=12
-generating 160 pcma input samples
-got 1 l16 output frames (160 octets) count=12
-got 1 l16 output frames (160 octets) count=12
-generating 160 pcma input samples
-got 1 l16 output frames (160 octets) count=12
-got 1 l16 output frames (160 octets) count=12
-generating 160 pcma input samples
-got 1 l16 output frames (160 octets) count=12
-got 1 l16 output frames (160 octets) count=12
-generating 160 pcma input samples
-got 1 l16 output frames (160 octets) count=12
-got 1 l16 output frames (160 octets) count=12
-generating 160 pcma input samples
-got 1 l16 output frames (160 octets) count=12
-got 1 l16 output frames (160 octets) count=12
-generating 160 pcma input samples
-got 1 l16 output frames (160 octets) count=12
-got 1 l16 output frames (160 octets) count=12
-generating 160 pcma input samples
-got 1 l16 output frames (160 octets) count=12
-got 1 l16 output frames (160 octets) count=12
-generating 160 pcma input samples
-got 1 l16 output frames (160 octets) count=12
-got 1 l16 output frames (160 octets) count=12
-generating 160 pcma input samples
-got 1 l16 output frames (160 octets) count=12
-got 1 l16 output frames (160 octets) count=12
-generating 160 pcma input samples
-got 1 l16 output frames (160 octets) count=12
-got 1 l16 output frames (160 octets) count=12
-generating 160 pcma input samples
-got 1 l16 output frames (160 octets) count=12
-got 1 l16 output frames (160 octets) count=12
-generating 160 pcma input samples
-got 1 l16 output frames (160 octets) count=12
-got 1 l16 output frames (160 octets) count=12
-== Transcoding test ==
-converting pcma -> pcma
-generating 160 pcma input samples
-got 1 pcma output frames (80 octets) count=12
-generating 160 pcma input samples
-got 1 pcma output frames (80 octets) count=12
-got 1 pcma output frames (80 octets) count=12
-generating 160 pcma input samples
-got 1 pcma output frames (80 octets) count=12
-got 1 pcma output frames (80 octets) count=12
-generating 160 pcma input samples
-got 1 pcma output frames (80 octets) count=12
-got 1 pcma output frames (80 octets) count=12
-generating 160 pcma input samples
-got 1 pcma output frames (80 octets) count=12
-got 1 pcma output frames (80 octets) count=12
-generating 160 pcma input samples
-got 1 pcma output frames (80 octets) count=12
-got 1 pcma output frames (80 octets) count=12
-generating 160 pcma input samples
-got 1 pcma output frames (80 octets) count=12
-got 1 pcma output frames (80 octets) count=12
-generating 160 pcma input samples
-got 1 pcma output frames (80 octets) count=12
-got 1 pcma output frames (80 octets) count=12
-generating 160 pcma input samples
-got 1 pcma output frames (80 octets) count=12
-got 1 pcma output frames (80 octets) count=12
-generating 160 pcma input samples
-got 1 pcma output frames (80 octets) count=12
-got 1 pcma output frames (80 octets) count=12
-generating 160 pcma input samples
-got 1 pcma output frames (80 octets) count=12
-got 1 pcma output frames (80 octets) count=12
-generating 160 pcma input samples
-got 1 pcma output frames (80 octets) count=12
-got 1 pcma output frames (80 octets) count=12
-generating 160 pcma input samples
-got 1 pcma output frames (80 octets) count=12
-got 1 pcma output frames (80 octets) count=12
-generating 160 pcma input samples
-got 1 pcma output frames (80 octets) count=12
-got 1 pcma output frames (80 octets) count=12
-generating 160 pcma input samples
-got 1 pcma output frames (80 octets) count=12
-got 1 pcma output frames (80 octets) count=12
-generating 160 pcma input samples
-got 1 pcma output frames (80 octets) count=12
-got 1 pcma output frames (80 octets) count=12
-Testing Initial L16->GSM, PCMA->GSM

tests/mgcp/mgcp_test.c

@@ -37,6 +37,7 @@
 #include <dlfcn.h>
 #include <time.h>
 #include <math.h>
+#include <ctype.h>
 
 char *strline_r(char *str, char **saveptr);
 
@@ -229,6 +230,12 @@ static void test_strline(void)
 	"I: %s\r\n" \
 	"L: p:20, a:AMR, nt:IN\r\n"
 
+#define MDCX_TOO_LONG_CI \
+	"MDCX 18983222 1@mgw MGCP 1.0\r\n" \
+	"I: 123456789012345678901234567890123\n"
+
+#define MDCX_TOO_LONG_CI_RET "510 18983222 FAIL\r\n"
+
 #define SHORT2	"CRCX 1"
 #define SHORT2_RET "510 000000 FAIL\r\n"
 #define SHORT3	"CRCX 1 1@mgw"
@@ -309,6 +316,32 @@ static void test_strline(void)
 	"a=rtpmap:97 GSM-EFR/8000\r\n" \
 	"a=ptime:20\r\n"
 
+#define CRCX_X_OSMO_IGN \
+	"CRCX 2 1@mgw MGCP 1.0\r\n" \
+	"M: recvonly\r\n" \
+	"C: 2\r\n" \
+	"L: p:20\r\n" \
+	"X-Osmo-IGN: C foo\r\n" \
+	"\r\n" \
+	"v=0\r\n" \
+	"c=IN IP4 123.12.12.123\r\n" \
+	"m=audio 5904 RTP/AVP 97\r\n" \
+	"a=rtpmap:97 GSM-EFR/8000\r\n" \
+	"a=ptime:40\r\n"
+
+#define CRCX_X_OSMO_IGN_RET \
+	"200 2 OK\r\n" \
+	"I: %s\r\n" \
+	"\r\n" \
+	"v=0\r\n" \
+	"o=- %s 23 IN IP4 0.0.0.0\r\n" \
+	"s=-\r\n" \
+	"c=IN IP4 0.0.0.0\r\n" \
+	"t=0 0\r\n" \
+	"m=audio 16010 RTP/AVP 97\r\n" \
+	"a=rtpmap:97 GSM-EFR/8000\r\n" \
+	"a=ptime:40\r\n"
+
 #define DLCX \
 	"DLCX 7 1@mgw MGCP 1.0\r\n" \
 	"I: %s\r\n" \
@@ -482,6 +515,8 @@ static const struct mgcp_test tests[] = {
 	 "a=fmtp:126 0/1/2"},
 	{"DLCX", DLCX, DLCX_RET, PTYPE_IGNORE,.extra_fmtp = "a=fmtp:126 0/1/2"},
 	{"CRCX", CRCX_NO_LCO_NO_SDP, CRCX_NO_LCO_NO_SDP_RET, 97},
+	{"CRCX", CRCX_X_OSMO_IGN, CRCX_X_OSMO_IGN_RET, 97},
+	{"MDCX_TOO_LONG_CI", MDCX_TOO_LONG_CI, MDCX_TOO_LONG_CI_RET},
 };
 
 static const struct mgcp_test retransmit[] = {
@@ -515,7 +550,7 @@ static int last_endpoint = -1;
 static int mgcp_test_policy_cb(struct mgcp_trunk_config *cfg, int endpoint,
 			       int state, const char *transactio_id)
 {
-	fprintf(stderr, "Policy CB got state %d on endpoint %d\n",
+	fprintf(stderr, "Policy CB got state %d on endpoint 0x%x\n",
 		state, endpoint);
 	last_endpoint = endpoint;
 	return MGCP_POLICY_CONT;
@@ -572,45 +607,42 @@ static void test_values(void)
 		    MGCP_CONN_RECV_SEND);
 }
 
-/* Extract a connection ID from a response (CRCX) */
+/* Extract a connection ID from a response and return in conn_id;
+ * if there is none, return -EINVAL and leave conn_id unchanged. */
 static int get_conn_id_from_response(uint8_t *resp, char *conn_id,
-				     unsigned int conn_id_len)
+				     size_t conn_id_buflen)
 {
-	char *conn_id_ptr;
-	int i;
-	bool got_conn_id = false;
+	const char *conn_id_start;
+	const char *conn_id_end;
+	int conn_id_len;
 
-	/* First try to get the conn_id from the I: parameter */
-	conn_id_ptr = strstr((char *)resp, "I: ");
-	if (conn_id_ptr) {
-		memset(conn_id, 0, conn_id_len);
-		memcpy(conn_id, conn_id_ptr + 3, 32);
-		got_conn_id = true;
-	} else {
-		/* Alternatively try to extract the conn_id from the o=- SDP
-		 * parameter */
-		conn_id_ptr = strstr((char *)resp, "o=- ");
-		if(conn_id_ptr) {
-			memset(conn_id, 0, conn_id_len);
-			memcpy(conn_id, conn_id_ptr + 4, 32);
-			got_conn_id = true;
-		}
-	}
+	const char *header_I = "\r\nI: ";
+	const char *header_o = "\r\no=- ";
 
-	if (got_conn_id) {
-		for (i = 0; i < conn_id_len; i++) {
-			if (conn_id[i] == '\n' || conn_id[i] == '\r')
-				conn_id[i] = '\0';
-		}
+	/* Try to get the conn_id from the 'I:' or 'o=-' parameter */
+	if ((conn_id_start = strstr((char *)resp, header_I))) {
+		conn_id_start += strlen(header_I);
+		conn_id_end = strstr(conn_id_start, "\r\n");
+	} else if ((conn_id_start = strstr((char *)resp, header_o))) {
+		conn_id_start += strlen(header_o);
+		conn_id_end = strchr(conn_id_start, ' ');
+	} else
+		return -EINVAL;
+
+	if (conn_id_end)
+		conn_id_len = conn_id_end - conn_id_start;
+	else
+		conn_id_len = strlen(conn_id_start);
+	OSMO_ASSERT(conn_id_len <= conn_id_buflen - 1);
 
 	/* A valid conn_id must at least contain one digit, and must
 	 * not exceed a length of 32 digits */
-		OSMO_ASSERT(strlen(conn_id) <= 32);
-		OSMO_ASSERT(strlen(conn_id) > 0);
+	OSMO_ASSERT(conn_id_len <= 32);
+	OSMO_ASSERT(conn_id_len > 0);
 
+	strncpy(conn_id, conn_id_start, conn_id_len);
+	conn_id[conn_id_len] = '\0';
 	return 0;
-	}
-	return -EINVAL;
 }
 
 /* Check response, automatically patch connection ID if needed */
@@ -710,7 +742,7 @@ static void test_messages(void)
 		if (msg) {
 			rc = get_conn_id_from_response(msg->data, last_conn_id,
 						       sizeof(last_conn_id));
-			if (rc)
+			if (rc == 0)
 				printf("(response contains a connection id)\n");
 			else
 				printf("(response does not contain a connection id)\n");
@@ -781,7 +813,7 @@ static void test_messages(void)
 			OSMO_ASSERT(last_endpoint != -1);
 			endp = &cfg->trunk.endpoints[last_endpoint];
 
-			fprintf(stderr, "endpoint %d: "
+			fprintf(stderr, "endpoint 0x%x: "
 				"payload type %d (expected %d)\n",
 				last_endpoint,
 				conn->end.codec->payload_type, t->ptype);
@@ -938,6 +970,7 @@ static void test_packet_loss_calc(void)
 {
 	int i;
 	struct mgcp_endpoint endp;
+	struct mgcp_config cfg = {0};
 	struct mgcp_trunk_config trunk;
 
 	printf("Testing packet loss calculation.\n");
@@ -945,6 +978,7 @@ static void test_packet_loss_calc(void)
 	memset(&endp, 0, sizeof(endp));
 	memset(&trunk, 0, sizeof(trunk));
 
+	endp.cfg = &cfg;
 	endp.type = &ep_typeset.rtp;
 	trunk.vty_number_endpoints = 1;
 	trunk.endpoints = &endp;
@@ -1165,6 +1199,7 @@ static void test_packet_error_detection(int patch_ssrc, int patch_ts)
 
 	struct mgcp_trunk_config trunk;
 	struct mgcp_endpoint endp;
+	struct mgcp_config cfg = {0};
 	struct mgcp_rtp_state state;
 	struct mgcp_rtp_end *rtp;
 	struct sockaddr_in addr = { 0 };
@@ -1192,6 +1227,7 @@ static void test_packet_error_detection(int patch_ssrc, int patch_ts)
 	state.in_stream.err_ts_ctr = &test_ctr_in;
 	state.out_stream.err_ts_ctr = &test_ctr_out;
 
+	endp.cfg = &cfg;
 	endp.type = &ep_typeset.rtp;
 
 	trunk.vty_number_endpoints = 1;
@@ -1265,6 +1301,7 @@ static void test_multilple_codec(void)
 	struct in_addr addr;
 	struct mgcp_conn_rtp *conn = NULL;
 	char conn_id[256];
+	int i;
 
 	printf("Testing multiple payload types\n");
 
@@ -1398,6 +1435,9 @@ static void test_multilple_codec(void)
 	OSMO_ASSERT(conn);
 	OSMO_ASSERT(conn->end.codec->payload_type == 0);
 
+	for (i = 1; i < cfg->trunk.number_endpoints; i++)
+		mgcp_endp_release(&cfg->trunk.endpoints[i]);
+
 	talloc_free(cfg);
 }
 
@@ -1616,6 +1656,140 @@ static void test_check_local_cx_options(void *ctx)
 	OSMO_ASSERT(check_local_cx_options(ctx, ",,,") == -1);
 }
 
+static void test_mgcp_codec_pt_translate_pars(struct mgcp_rtp_codec *c)
+{
+	c->rate = 8000;
+	c->channels = 1;
+	c->frame_duration_num = 23;
+	c->frame_duration_den = 42;
+}
+
+static void test_mgcp_codec_pt_translate(void)
+{
+	struct mgcp_conn_rtp conn_src;
+	struct mgcp_conn_rtp conn_dst;
+	int pt_dst;
+
+	/* Setup a realistic set of codec configurations on both
+	 * ends. AMR and HR will use different payload types. PCMU
+	 * must use 0 on both ends since this is not a dynamic payload
+	 * type */
+	test_mgcp_codec_pt_translate_pars(&conn_src.end.codecs[0]);
+	test_mgcp_codec_pt_translate_pars(&conn_dst.end.codecs[0]);
+	test_mgcp_codec_pt_translate_pars(&conn_src.end.codecs[1]);
+	test_mgcp_codec_pt_translate_pars(&conn_dst.end.codecs[1]);
+	test_mgcp_codec_pt_translate_pars(&conn_src.end.codecs[2]);
+	test_mgcp_codec_pt_translate_pars(&conn_dst.end.codecs[2]);
+	conn_src.end.codecs[0].payload_type = 112;
+	conn_dst.end.codecs[0].payload_type = 96;
+	conn_src.end.codecs[1].payload_type = 0;
+	conn_dst.end.codecs[1].payload_type = 0;
+	conn_src.end.codecs[2].payload_type = 111;
+	conn_dst.end.codecs[2].payload_type = 97;
+	conn_src.end.codecs[0].audio_name = "AMR/8000/1";
+	conn_dst.end.codecs[0].audio_name = "AMR/8000/1";
+	conn_src.end.codecs[1].audio_name = "PCMU/8000/1";
+	conn_dst.end.codecs[1].audio_name = "PCMU/8000/1";
+	conn_src.end.codecs[2].audio_name = "GSM-HR-08/8000/1";
+	conn_dst.end.codecs[2].audio_name = "GSM-HR-08/8000/1";
+	conn_src.end.codecs[0].subtype_name = "AMR";
+	conn_dst.end.codecs[0].subtype_name = "AMR";
+	conn_src.end.codecs[1].subtype_name = "PCMU";
+	conn_dst.end.codecs[1].subtype_name = "PCMU";
+	conn_src.end.codecs[2].subtype_name = "GSM-HR-08";
+	conn_dst.end.codecs[2].subtype_name = "GSM-HR-08";
+	conn_src.end.codecs_assigned = 3;
+	conn_dst.end.codecs_assigned = 3;
+
+	/* We expect the function to find the PT we must use when we send the
+	 * packet out to the destination. All we know is the context for both
+	 * connections and the payload type from the source packet */
+	pt_dst =
+	    mgcp_codec_pt_translate(&conn_src, &conn_dst,
+				    conn_src.end.codecs[0].payload_type);
+	OSMO_ASSERT(pt_dst == conn_dst.end.codecs[0].payload_type);
+	pt_dst =
+	    mgcp_codec_pt_translate(&conn_src, &conn_dst,
+				    conn_src.end.codecs[1].payload_type);
+	OSMO_ASSERT(pt_dst == conn_dst.end.codecs[1].payload_type);
+	pt_dst =
+	    mgcp_codec_pt_translate(&conn_src, &conn_dst,
+				    conn_src.end.codecs[2].payload_type);
+	OSMO_ASSERT(pt_dst == conn_dst.end.codecs[2].payload_type);
+
+	/* Try some constellations that must fail */
+	pt_dst = mgcp_codec_pt_translate(&conn_src, &conn_dst, 123);
+	OSMO_ASSERT(pt_dst == -EINVAL);
+	conn_src.end.codecs_assigned = 0;
+	conn_dst.end.codecs_assigned = 3;
+	pt_dst =
+	    mgcp_codec_pt_translate(&conn_src, &conn_dst,
+				    conn_src.end.codecs[0].payload_type);
+	OSMO_ASSERT(pt_dst == -EINVAL);
+	pt_dst =
+	    mgcp_codec_pt_translate(&conn_src, &conn_dst,
+				    conn_src.end.codecs[1].payload_type);
+	OSMO_ASSERT(pt_dst == -EINVAL);
+	pt_dst =
+	    mgcp_codec_pt_translate(&conn_src, &conn_dst,
+				    conn_src.end.codecs[2].payload_type);
+	OSMO_ASSERT(pt_dst == -EINVAL);
+	conn_src.end.codecs_assigned = 3;
+	conn_dst.end.codecs_assigned = 0;
+	pt_dst =
+	    mgcp_codec_pt_translate(&conn_src, &conn_dst,
+				    conn_src.end.codecs[0].payload_type);
+	OSMO_ASSERT(pt_dst == -EINVAL);
+	pt_dst =
+	    mgcp_codec_pt_translate(&conn_src, &conn_dst,
+				    conn_src.end.codecs[1].payload_type);
+	OSMO_ASSERT(pt_dst == -EINVAL);
+	pt_dst =
+	    mgcp_codec_pt_translate(&conn_src, &conn_dst,
+				    conn_src.end.codecs[2].payload_type);
+	OSMO_ASSERT(pt_dst == -EINVAL);
+}
+
+void test_conn_id_matching()
+{
+	struct mgcp_endpoint endp = {};
+	struct mgcp_conn *conn;
+	struct mgcp_conn *conn_match;
+	int i;
+	const char *conn_id_generated = "000023AB";
+	const char *conn_id_request[] = {
+		"23AB",
+		"0023AB",
+		"000023AB",
+		"00000023AB",
+		"23ab",
+		"0023ab",
+		"000023ab",
+		"00000023ab",
+	};
+
+	printf("\nTesting %s\n", __func__);
+
+	INIT_LLIST_HEAD(&endp.conns);
+
+	conn = talloc_zero(NULL, struct mgcp_conn);
+	OSMO_ASSERT(conn);
+	osmo_strlcpy(conn->id, conn_id_generated, sizeof(conn->id));
+	llist_add(&conn->entry, &endp.conns);
+
+	for (i = 0; i < ARRAY_SIZE(conn_id_request); i++) {
+		const char *needle = conn_id_request[i];
+		printf("needle='%s' ", needle);
+		conn_match = mgcp_conn_get(&endp, needle);
+		OSMO_ASSERT(conn_match);
+		printf("found '%s'\n", conn_match->id);
+		OSMO_ASSERT(conn_match == conn);
+	}
+
+	llist_del(&conn->entry);
+	talloc_free(conn);
+}
+
 int main(int argc, char **argv)
 {
 	void *ctx = talloc_named_const(NULL, 0, "mgcp_test");
@@ -1639,6 +1813,8 @@ int main(int argc, char **argv)
 	test_osmux_cid();
 	test_get_lco_identifier();
 	test_check_local_cx_options(ctx);
+	test_mgcp_codec_pt_translate();
+	test_conn_id_matching();
 
 	OSMO_ASSERT(talloc_total_size(msgb_ctx) == 0);
 	OSMO_ASSERT(talloc_total_blocks(msgb_ctx) == 1);

tests/mgcp/mgcp_test.ok

@@ -22,7 +22,7 @@ AUEP 158663169 ds/e1-1/2@mgw MGCP 1.0
 checking response:
 using message as statically defined for comparison
 Response matches our expectations.
-(response contains a connection id)
+(response does not contain a connection id)
 
 ================================================
 Testing AUEP2
@@ -34,7 +34,7 @@ AUEP 18983213 ds/e1-2/1@mgw MGCP 1.0
 checking response:
 using message as statically defined for comparison
 Response matches our expectations.
-(response contains a connection id)
+(response does not contain a connection id)
 
 ================================================
 Testing MDCX1
@@ -46,7 +46,7 @@ MDCX 18983213 ds/e1-3/1@mgw MGCP 1.0
 checking response:
 using message as statically defined for comparison
 Response matches our expectations.
-(response contains a connection id)
+(response does not contain a connection id)
 
 ================================================
 Testing MDCX2
@@ -58,7 +58,7 @@ MDCX 18983214 ds/e1-1/2@mgw MGCP 1.0
 checking response:
 using message as statically defined for comparison
 Response matches our expectations.
-(response contains a connection id)
+(response does not contain a connection id)
 
 ================================================
 Testing CRCX
@@ -79,7 +79,7 @@ a=ptime:40
 checking response:
 using message with patched conn_id for comparison
 Response matches our expectations.
-(response does not contain a connection id)
+(response contains a connection id)
 Dummy packets: 2
 
 ================================================
@@ -93,7 +93,7 @@ I: %s
 checking response:
 using message with patched conn_id for comparison
 Response matches our expectations.
-(response does not contain a connection id)
+(response contains a connection id)
 Dummy packets: 2
 
 ================================================
@@ -117,7 +117,7 @@ a=ptime:40
 ---------8<---------
 checking response:
 using message with patched conn_id for comparison
-Response matches our expectations.
+Response matches our expectations.
 (response contains a connection id)
 Dummy packets: 2
 
@@ -141,7 +141,7 @@ a=ptime:40
 
 ---------8<---------
 checking response:
-using message with patched conn_id for comparison
+using message with patched conn_id for comparison
 Response matches our expectations.
 (response contains a connection id)
 Dummy packets: 2
@@ -165,7 +165,7 @@ a=ptime:40
 a=ptime:40
 
 ---------8<---------
-checking response:
+checking response:
 using message with patched conn_id for comparison
 Response matches our expectations.
 (response contains a connection id)
@@ -189,7 +189,7 @@ a=ptime:40
 a=rtpmap:99 AMR/8000
 a=ptime:40
 
----------8<---------
+---------8<---------
 checking response:
 using message with patched conn_id for comparison
 Response matches our expectations.
@@ -213,7 +213,7 @@ a=ptime:40
 m=audio 4441 RTP/AVP 99
 a=rtpmap:99 AMR/8000
 a=ptime:40
-
+
 ---------8<---------
 checking response:
 using message with patched conn_id for comparison
@@ -228,7 +228,7 @@ L: p:20, a:AMR, nt:IN
 M: recvonly
 C: 2
 I: %s
-L: p:20, a:AMR, nt:IN
+L: p:20, a:AMR, nt:IN
 
 ---------8<---------
 checking response:
@@ -243,7 +243,7 @@ C: 2
 ---------8<---------
 DLCX 7 1@mgw MGCP 1.0
 I: %s
-C: 2
+C: 2
 
 ---------8<---------
 checking response:
@@ -256,7 +256,7 @@ v=0
c=IN IP4 123.12.12.123
m=audio 5904 RTP/AVP 97
a=rtpmap:97 GSM-EFR/8000
 creating message from statically defined input:
 ---------8<---------
 CRCX 2 1@mgw MGCP 1.0
-M: recvonly
+M: recvonly
 C: 2
 
 v=0
@@ -277,7 +277,7 @@ CRCX
 
 
 ---------8<---------
-
+
 ================================================
 Testing SHORT1
 creating message from statically defined input:
@@ -288,7 +288,7 @@ CRCX 1
 checking response:
 using message as statically defined for comparison
 Response matches our expectations.
-(response contains a connection id)
+(response does not contain a connection id)
 
 ================================================
 Testing SHORT2
@@ -299,7 +299,7 @@ CRCX 1 1@mgw
 checking response:
 using message as statically defined for comparison
 Response matches our expectations.
-(response contains a connection id)
+(response does not contain a connection id)
 
 ================================================
 Testing SHORT3
@@ -310,7 +310,7 @@ CRCX 1 1@mgw MGCP
 checking response:
 using message as statically defined for comparison
 Response matches our expectations.
-(response contains a connection id)
+(response does not contain a connection id)
 
 ================================================
 Testing SHORT4
@@ -324,7 +324,7 @@ S: D/9
 (response does not contain a connection id)
 
 ================================================
-Testing RQNT1
+Testing RQNT1
 creating message from statically defined input:
 ---------8<---------
 RQNT 186908780 1@mgw MGCP 1.0
@@ -338,7 +338,7 @@ R: D/[0-9#*](N), G/ft, fxr/t38
 (response does not contain a connection id)
 
 ================================================
-Testing RQNT2
+Testing RQNT2
 creating message from statically defined input:
 ---------8<---------
 RQNT 186908781 1@mgw MGCP 1.0
@@ -352,7 +352,7 @@ C: 2
 (response does not contain a connection id)
 
 ================================================
-Testing DLCX
+Testing DLCX
 creating message from statically defined input:
 ---------8<---------
 DLCX 7 1@mgw MGCP 1.0
@@ -373,7 +373,7 @@ a=ptime:40
 M: recvonly
 C: 2
 L: p:20
-
+
 v=0
 c=IN IP4 123.12.12.123
 m=audio 5904 RTP/AVP 97
@@ -387,7 +387,7 @@ I: %s
 (response contains a connection id)
 Dummy packets: 2
 
-================================================
+================================================
 Testing MDCX3
 creating message from statically defined input:
 ---------8<---------
@@ -402,7 +402,7 @@ C: 2
 Dummy packets: 2
 
 ================================================
-Testing DLCX
+Testing DLCX
 creating message from statically defined input:
 ---------8<---------
 DLCX 7 1@mgw MGCP 1.0
@@ -416,9 +416,45 @@ C: 2
 (response does not contain a connection id)
 
 ================================================
-Testing CRCX
+Testing CRCX
 creating message from statically defined input:
 ---------8<---------
+CRCX 2 6@mgw MGCP 1.0
+M: recvonly
+C: 2
+
+---------8<---------
+checking response:
+using message with patched conn_id for comparison
+Response matches our expectations.
+(response contains a connection id)
+Dummy packets: 2
+
+================================================
+Testing CRCX
+creating message from statically defined input:
+---------8<---------
+CRCX 2 1@mgw MGCP 1.0
+M: recvonly
+C: 2
+L: p:20
+X-Osmo-IGN: C foo
+
+v=0
+c=IN IP4 123.12.12.123
+m=audio 5904 RTP/AVP 97
+a=rtpmap:97 GSM-EFR/8000
+a=ptime:40
+
+---------8<---------
+checking response:
+using message with patched conn_id for comparison
+Response matches our expectations.
+(response contains a connection id)
+Dummy packets: 2
+
+================================================
+Testing MDCX_TOO_LONG_CI
 creating message from statically defined input:
 ---------8<---------
 MDCX 18983222 1@mgw MGCP 1.0
@@ -1133,4 +1169,14 @@ p:10, a:PCMU -> p:10, a:PCMU
 Testing get_lco_identifier()
 p:10, a:PCMU -> p:10, a:PCMU
 p:10, a:PCMU -> p:10, a:PCMU
+'XXXX, p:10, a:PCMU' -> 'p:10, a:PCMU'
+'XXXX,p:10,a:PCMU' -> 'p:10,a:PCMU'
+'10,a:PCMU' -> 'a:PCMU'
+'10, a:PCMU' -> 'a:PCMU'
+'10,a: PCMU' -> 'a: PCMU'
+'10 ,a: PCMU' -> 'a: PCMU'
+', a:PCMU' -> 'a:PCMU'
+' a:PCMU' -> 'a:PCMU'
+'' -> '(null)'
+p10, aPCMU -> (null)
 '10,a :PCMU' -> '(null)'

tests/mgcp_client/mgcp_client_test.c

@@ -77,14 +77,14 @@ static struct mgcp_client_conf conf;
 struct mgcp_client *mgcp = NULL;
 
 static int reply_to(mgcp_trans_id_t trans_id, int code, const char *comment,
-		     int conn_id, const char *params)
+		    const char *params)
 {
 	static char compose[4096 - 128];
 	int len;
 
 	len = snprintf(compose, sizeof(compose),
-		       "%d %u %s\r\nI: %d\n\n%s",
-		       code, trans_id, comment, conn_id, params);
+		       "%d %u %s\r\n%s",
+		       code, trans_id, comment, params);
 	OSMO_ASSERT(len < sizeof(compose));
 	OSMO_ASSERT(len > 0);
 
@@ -102,6 +102,7 @@ void test_response_cb(struct mgcp_response *response, void *priv)
 	printf("response cb received:\n");
 	printf("  head.response_code = %d\n", response->head.response_code);
 	printf("  head.trans_id = %u\n", response->head.trans_id);
+	printf("  head.conn_id = %s\n", response->head.conn_id);
 	printf("  head.comment = %s\n", response->head.comment);
 	printf("  audio_port = %u\n", response->audio_port);
 	printf("  audio_ip = %s\n", response->audio_ip);
@@ -134,32 +135,6 @@ mgcp_trans_id_t dummy_mgcp_send(struct msgb *msg)
 	return trans_id;
 }
 
-void test_crcx(void)
-{
-	struct msgb *msg;
-	mgcp_trans_id_t trans_id;
-
-	printf("\n===== %s =====\n", __func__);
-
-	if (mgcp)
-		talloc_free(mgcp);
-	mgcp = mgcp_client_init(ctx, &conf);
-
-	msg = mgcp_msg_crcx(mgcp, 23, 42, MGCP_CONN_LOOPBACK);
-	trans_id = dummy_mgcp_send(msg);
-
-	reply_to(trans_id, 200, "OK", 1,
-		"v=0\r\n"
-		"o=- 1 23 IN IP4 10.9.1.120\r\n"
-		"s=-\r\n"
-		"c=IN IP4 10.9.1.120\r\n"
-		"t=0 0\r\n"
-		"m=audio 16002 RTP/AVP 110 96\r\n"
-		"a=rtpmap:110 AMR/8000\r\n"
-		"a=rtpmap:96 GSM-EFR/8000\r\n"
-		"a=ptime:20\r\n");
-}
-
 void test_mgcp_msg(void)
 {
 	struct msgb *msg;
@@ -180,7 +155,8 @@ void test_mgcp_msg(void)
 		.codecs_len = 1,
 		.ptmap[0].codec = CODEC_GSMEFR_8000_1,
 		.ptmap[0].pt = 96,
-		.ptmap_len = 1
+		.ptmap_len = 1,
+		.x_osmo_ign = MGCP_X_OSMO_IGN_CALLID,
 	};
 
 	if (mgcp)
@@ -268,6 +244,16 @@ void test_mgcp_msg(void)
 	msg = mgcp_msg_gen(mgcp, &mgcp_msg);
 	printf("%s\n", (char *)msg->data);
 
+	printf("Generate X-Osmo-IGN message:\n");
+	msg = mgcp_msg_gen(mgcp, &mgcp_msg);
+	mgcp_msg.verb = MGCP_VERB_CRCX;
+	mgcp_msg.presence =
+	    (MGCP_MSG_PRESENCE_ENDPOINT | MGCP_MSG_PRESENCE_CALL_ID |
+	     MGCP_MSG_PRESENCE_CONN_ID | MGCP_MSG_PRESENCE_CONN_MODE
+	     | MGCP_MSG_PRESENCE_X_OSMO_IGN);
+	msg = mgcp_msg_gen(mgcp, &mgcp_msg);
+	printf("%s\n", (char *)msg->data);
+
 	printf("Overfolow test:\n");
 	mgcp_msg.verb = MGCP_VERB_MDCX;
 	mgcp_msg.presence =
@@ -324,7 +310,7 @@ void test_mgcp_client_cancel()
 	OSMO_ASSERT(mgcp_client_cancel(mgcp, trans_id) == 0);
 
 	fprintf(stderr, "- late response gets discarded\n");
-	OSMO_ASSERT(reply_to(trans_id, 200, "OK", 1, "v=0\r\n") == -ENOENT);
+	OSMO_ASSERT(reply_to(trans_id, 200, "OK", "I: 1\r\n\r\nv=0\r\n") == -ENOENT);
 
 	fprintf(stderr, "- canceling again does nothing\n");
 	OSMO_ASSERT(mgcp_client_cancel(mgcp, trans_id) == -ENOENT);
@@ -551,7 +537,6 @@ int main(int argc, char **argv)
 
 	mgcp_client_conf_init(&conf);
 
-	test_crcx();
 	test_mgcp_msg();
 	test_mgcp_client_cancel();
 	test_sdp_section_start();

tests/mgcp_client/mgcp_client_test.err

@@ -1,6 +1,8 @@
+DLMGCP MGCP client: using endpoint domain '@mgw'
 DLMGCP message buffer to small, can not generate MGCP message
 
 test_mgcp_client_cancel():
+DLMGCP MGCP client: using endpoint domain '@mgw'
 - composed msg with trans_id=1
 - not in queue yet, cannot cancel yet
 DLMGCP Cannot cancel, no such transaction: 1

tests/mgcp_client/mgcp_client_test.ok

@@ -1,45 +1,4 @@
 
-===== test_crcx =====
-composed:
------
-CRCX 1 17@mgw MGCP 1.0
-C: 2a
-L: p:20, a:AMR, nt:IN
-M: loopback
-
------
-composed response:
------
-200 1 OK
-I: 1
-
-v=0
-o=- 1 23 IN IP4 10.9.1.120
-s=-
-c=IN IP4 10.9.1.120
-t=0 0
-m=audio 16002 RTP/AVP 110 96
-a=rtpmap:110 AMR/8000
-a=rtpmap:96 GSM-EFR/8000
-a=ptime:20
-
------
-response cb received:
-  head.response_code = 200
-  head.trans_id = 1
-  head.comment = OK
-  audio_port = 16002
-  audio_ip = 10.9.1.120
-  ptime = 20
-  codecs_len = 2
-  codecs[0] = 112
-  codecs[1] = 110
-  ptmap_len = 2
-  ptmap[0].codec = 112
-  ptmap[0].pt = 110
-  ptmap[1].codec = 110
-  ptmap[1].pt = 96
-
 Generated CRCX message:
 CRCX 1 23@mgw MGCP 1.0
 C: 2f
@@ -117,6 +76,14 @@ AUEP 8 23@mgw MGCP 1.0
 Generated RSIP message:
 RSIP 9 23@mgw MGCP 1.0
 
+Generate X-Osmo-IGN message:
+CRCX 11 23@mgw MGCP 1.0
+C: 2f
+I: 11
+L: p:20, a:GSM, nt:IN
+M: sendrecv
+X-Osmo-IGN: C
+
 Overfolow test:
 
 

tests/testsuite.at

@@ -1,19 +1,6 @@
 AT_INIT
 AT_BANNER([Regression tests.])
 
-AT_SETUP([legacy_mgcp])
-AT_KEYWORDS([legacy_mgcp])
-cat $abs_srcdir/legacy_mgcp/mgcp_test.ok > expout
-AT_CHECK([$abs_top_builddir/tests/legacy_mgcp/mgcp_test], [], [expout], [ignore])
-AT_CLEANUP
-
-AT_SETUP([legacy_mgcp-trans])
-AT_KEYWORDS([legacy_mgcp-trans])
-AT_CHECK([test "$enable_mgcp_transcoding_test" == yes || exit 77])
-cat $abs_srcdir/legacy_mgcp/mgcp_transcoding_test.ok > expout
-AT_CHECK([$abs_top_builddir/tests/legacy_mgcp/mgcp_transcoding_test], [], [expout], [ignore])
-AT_CLEANUP
-
 AT_SETUP([mgcp_client])
 AT_KEYWORDS([mgcp_client])
 cat $abs_srcdir/mgcp_client/mgcp_client_test.ok > expout

tests/vty_test_runner.py

@@ -1,171 +0,0 @@
-#!/usr/bin/env python
-
-# (C) 2013 by Katerina Barone-Adesi <kat.obsc@gmail.com>
-# (C) 2013 by Holger Hans Peter Freyther
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-import os, sys
-import time
-import unittest
-import socket
-import subprocess
-
-import osmopy.obscvty as obscvty
-import osmopy.osmoutil as osmoutil
-
-# add $top_srcdir/contrib to find ipa.py
-sys.path.append(os.path.join(sys.path[0], '..', 'contrib'))
-
-from ipa import IPA
-
-# to be able to find $top_srcdir/doc/...
-confpath = os.path.join(sys.path[0], '..')
-
-class TestVTYBase(unittest.TestCase):
-
-    def checkForEndAndExit(self):
-        res = self.vty.command("list")
-        #print ('looking for "exit"\n')
-        self.assert_(res.find('  exit\r') > 0)
-        #print 'found "exit"\nlooking for "end"\n'
-        self.assert_(res.find('  end\r') > 0)
-        #print 'found "end"\n'
-
-    def vty_command(self):
-        raise Exception("Needs to be implemented by a subclass")
-
-    def vty_app(self):
-        raise Exception("Needs to be implemented by a subclass")
-
-    def setUp(self):
-        osmo_vty_cmd = self.vty_command()[:]
-        config_index = osmo_vty_cmd.index('-c')
-        if config_index:
-            cfi = config_index + 1
-            osmo_vty_cmd[cfi] = os.path.join(confpath, osmo_vty_cmd[cfi])
-
-        try:
-            self.proc = osmoutil.popen_devnull(osmo_vty_cmd)
-        except OSError:
-            print >> sys.stderr, "Current directory: %s" % os.getcwd()
-            print >> sys.stderr, "Consider setting -b"
-
-        appstring = self.vty_app()[2]
-        appport = self.vty_app()[0]
-        self.vty = obscvty.VTYInteract(appstring, "127.0.0.1", appport)
-
-    def tearDown(self):
-        if self.vty:
-            self.vty._close_socket()
-        self.vty = None
-        osmoutil.end_proc(self.proc)
-
-class TestVTYMGCP(TestVTYBase):
-    def vty_command(self):
-        return ["./src/osmo-bsc_mgcp/osmo-bsc_mgcp", "-c",
-                "doc/examples/osmo-bsc_mgcp/mgcp.cfg"]
-
-    def vty_app(self):
-        return (4243, "./src/osmo-bsc_mgcp/osmo-bsc_mgcp", "OpenBSC MGCP", "mgcp")
-
-    def testForcePtime(self):
-        self.vty.enable()
-        res = self.vty.command("show running-config")
-        self.assert_(res.find('  rtp force-ptime 20\r') > 0)
-        self.assertEquals(res.find('  no rtp force-ptime\r'), -1)
-
-        self.vty.command("configure terminal")
-        self.vty.command("mgcp")
-        self.vty.command("no rtp force-ptime")
-        res = self.vty.command("show running-config")
-        self.assertEquals(res.find('  rtp force-ptime 20\r'), -1)
-        self.assertEquals(res.find('  no rtp force-ptime\r'), -1)
-
-    def testOmitAudio(self):
-        self.vty.enable()
-        res = self.vty.command("show running-config")
-        self.assert_(res.find('  sdp audio-payload send-name\r') > 0)
-        self.assertEquals(res.find('  no sdp audio-payload send-name\r'), -1)
-
-        self.vty.command("configure terminal")
-        self.vty.command("mgcp")
-        self.vty.command("no sdp audio-payload send-name")
-        res = self.vty.command("show running-config")
-        self.assertEquals(res.find('  rtp sdp audio-payload send-name\r'), -1)
-        self.assert_(res.find('  no sdp audio-payload send-name\r') > 0)
-
-        # TODO: test it for the trunk!
-
-    def testBindAddr(self):
-        self.vty.enable()
-
-        self.vty.command("configure terminal")
-        self.vty.command("mgcp")
-
-        # enable.. disable bts-bind-ip
-        self.vty.command("rtp bts-bind-ip 254.253.252.250")
-        res = self.vty.command("show running-config")
-        self.assert_(res.find('rtp bts-bind-ip 254.253.252.250') > 0)
-        self.vty.command("no rtp bts-bind-ip")
-        res = self.vty.command("show running-config")
-        self.assertEquals(res.find('  rtp bts-bind-ip'), -1)
-
-        # enable.. disable net-bind-ip
-        self.vty.command("rtp net-bind-ip 254.253.252.250")
-        res = self.vty.command("show running-config")
-        self.assert_(res.find('rtp net-bind-ip 254.253.252.250') > 0)
-        self.vty.command("no rtp net-bind-ip")
-        res = self.vty.command("show running-config")
-        self.assertEquals(res.find('  rtp net-bind-ip'), -1)
-
-
-if __name__ == '__main__':
-    import argparse
-    import sys
-
-    workdir = '.'
-
-    parser = argparse.ArgumentParser()
-    parser.add_argument("-v", "--verbose", dest="verbose",
-                        action="store_true", help="verbose mode")
-    parser.add_argument("-p", "--pythonconfpath", dest="p",
-                        help="searchpath for config")
-    parser.add_argument("-w", "--workdir", dest="w",
-                        help="Working directory")
-    parser.add_argument("test_name", nargs="*", help="(parts of) test names to run, case-insensitive")
-    args = parser.parse_args()
-
-    verbose_level = 1
-    if args.verbose:
-        verbose_level = 2
-
-    if args.w:
-        workdir = args.w
-
-    if args.p:
-        confpath = args.p
-
-    print "confpath %s, workdir %s" % (confpath, workdir)
-    os.chdir(workdir)
-    print "Running tests for specific VTY commands"
-    suite = unittest.TestSuite()
-    suite.addTest(unittest.TestLoader().loadTestsFromTestCase(TestVTYMGCP))
-
-    if args.test_name:
-        osmoutil.pick_tests(suite, *args.test_name)
-
-    res = unittest.TextTestRunner(verbosity=verbose_level, stream=sys.stdout).run(suite)
-    sys.exit(len(res.errors) + len(res.failures))
-
-# vim: shiftwidth=4 expandtab nocin ai