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gtp/gtp_internal.h: new file

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While at it, move internal functions of gtp.h to a separate file too.

The following APIs are unexpectedly public:
* imsi_gtp2str gets used by pdp.h
* gsna2in_addr, gtp_echo_req gets used by osmo-sgsn

Change-Id: I72c40cbdec33449ca8104fb3cad8df1a9e07dfd7
This commit is contained in:
Oliver Smith
2024-02-23 14:35:12 +01:00
parent 9b4ddd9e5a
commit 1f0446d159
9 changed files with 60 additions and 51 deletions
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1
ggsn/ggsn.c
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@@ -58,6 +58,7 @@
#include "../lib/icmpv6.h"
#include "pco.h"
#include "ggsn.h"
#include "../gtp/gtp_internal.h"
static int ggsn_tun_fd_cb(struct osmo_fd *fd, unsigned int what);
static int cb_tun_ind(struct tun_t *tun, void *pack, unsigned len);

1
ggsn/ggsn_vty.c
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@@ -42,6 +42,7 @@
#include "ggsn.h"
#include "sgsn.h"
#include "../gtp/gtp_internal.h"
#define PREFIX_STR "Prefix (Network/Netmask)\n"
#define IFCONFIG_STR "GGSN-based interface configuration\n"

2
ggsn/sgsn.c
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@@ -1,6 +1,6 @@
#include "sgsn.h"
#include "ggsn.h"
#include "../gtp/gtp_internal.h"
static bool sgsn_peer_attempt_free(struct sgsn_peer *sgsn)
{

1
gtp/Makefile.am
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@@ -18,6 +18,7 @@ libgtp_la_SOURCES = \
gsn.c \
gsn_internal.h \
gtp.c \
gtp_internal.h \
gtpie.c \
lookupa.c \
lookupa.h \

1
gtp/gsn_internal.h
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@@ -1,3 +1,4 @@
#pragma once
#include <osmocom/core/in46_addr.h>
void gtp_queue_timer_start(struct gsn_t *gsn);

1
gtp/gtp.c
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@@ -61,6 +61,7 @@
#include "queue.h"
#include "gsn_internal.h"
#include "gtp_internal.h"
/* Error reporting functions */

52
gtp/gtp_internal.h Normal file
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@@ -0,0 +1,52 @@
#pragma once
int gtp_echo_resp(struct gsn_t *gsn, int version,
struct sockaddr_in *peer, int fd,
void *pack, unsigned len);
int gtp_echo_ind(struct gsn_t *gsn, int version,
struct sockaddr_in *peer, int fd,
void *pack, unsigned len);
int gtp_echo_conf(struct gsn_t *gsn, int version,
struct sockaddr_in *peer, void *pack, unsigned len);
int gtp_unsup_req(struct gsn_t *gsn, int version,
struct sockaddr_in *peer,
int fd, void *pack, unsigned len);
int gtp_unsup_ind(struct gsn_t *gsn, struct sockaddr_in *peer,
void *pack, unsigned len);
int gtp_create_pdp_resp(struct gsn_t *gsn, int version,
struct pdp_t *pdp, uint8_t cause);
int gtp_create_pdp_ind(struct gsn_t *gsn, int version,
struct sockaddr_in *peer, int fd,
void *pack, unsigned len);
int gtp_create_pdp_conf(struct gsn_t *gsn, int version,
struct sockaddr_in *peer,
void *pack, unsigned len);
int gtp_update_pdp_req(struct gsn_t *gsn, int version, void *cbp,
struct in_addr *inetaddr, struct pdp_t *pdp);
int gtp_delete_pdp_req(struct gsn_t *gsn, int version, void *cbp,
struct pdp_t *pdp);
int gtp_delete_pdp_resp(struct gsn_t *gsn, int version,
struct sockaddr_in *peer, int fd,
void *pack, unsigned len,
struct pdp_t *pdp, struct pdp_t *linked_pdp,
uint8_t cause, int teardown);
int gtp_delete_pdp_ind(struct gsn_t *gsn, int version,
struct sockaddr_in *peer, int fd,
void *pack, unsigned len);
int gtp_delete_pdp_conf(struct gsn_t *gsn, int version,
struct sockaddr_in *peer,
void *pack, unsigned len);
int ipv42eua(struct ul66_t *eua, struct in_addr *src);
int eua2ipv4(struct in_addr *dst, struct ul66_t *eua);
int in_addr2gsna(struct ul16_t *gsna, struct in_addr *src);
uint64_t gtp_imsi_str2gtp(const char *str);

51
include/osmocom/gtp/gtp.h
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@@ -265,61 +265,12 @@ extern int gtp_ran_info_relay_req(struct gsn_t *gsn, const struct sockaddr_in *p
extern int gtp_decaps0(struct gsn_t *gsn);
extern int gtp_decaps1c(struct gsn_t *gsn);
extern int gtp_decaps1u(struct gsn_t *gsn);
/* Internal functions (not part of the API) */
extern int gtp_echo_req(struct gsn_t *gsn, int version, void *cbp,
struct in_addr *inetaddrs);
extern int gtp_echo_resp(struct gsn_t *gsn, int version,
struct sockaddr_in *peer, int fd,
void *pack, unsigned len);
extern int gtp_echo_ind(struct gsn_t *gsn, int version,
struct sockaddr_in *peer, int fd,
void *pack, unsigned len);
extern int gtp_echo_conf(struct gsn_t *gsn, int version,
struct sockaddr_in *peer, void *pack, unsigned len);
extern int gtp_unsup_req(struct gsn_t *gsn, int version,
struct sockaddr_in *peer,
int fd, void *pack, unsigned len);
extern int gtp_unsup_ind(struct gsn_t *gsn, struct sockaddr_in *peer,
void *pack, unsigned len);
extern int gtp_create_pdp_resp(struct gsn_t *gsn, int version,
struct pdp_t *pdp, uint8_t cause);
extern int gtp_create_pdp_ind(struct gsn_t *gsn, int version,
struct sockaddr_in *peer, int fd,
void *pack, unsigned len);
extern int gtp_create_pdp_conf(struct gsn_t *gsn, int version,
struct sockaddr_in *peer,
void *pack, unsigned len);
extern int gtp_update_pdp_req(struct gsn_t *gsn, int version, void *cbp,
struct in_addr *inetaddr, struct pdp_t *pdp);
extern int gtp_delete_pdp_req(struct gsn_t *gsn, int version, void *cbp,
struct pdp_t *pdp);
extern int gtp_delete_pdp_resp(struct gsn_t *gsn, int version,
struct sockaddr_in *peer, int fd,
void *pack, unsigned len,
struct pdp_t *pdp, struct pdp_t *linked_pdp,
uint8_t cause, int teardown);
extern int gtp_delete_pdp_ind(struct gsn_t *gsn, int version,
struct sockaddr_in *peer, int fd,
void *pack, unsigned len);
extern int gtp_delete_pdp_conf(struct gsn_t *gsn, int version,
struct sockaddr_in *peer,
void *pack, unsigned len);
extern int ipv42eua(struct ul66_t *eua, struct in_addr *src);
extern int eua2ipv4(struct in_addr *dst, struct ul66_t *eua);
extern int gsna2in_addr(struct in_addr *dst, struct ul16_t *gsna);
extern int in_addr2gsna(struct ul16_t *gsna, struct in_addr *src);
extern const char *imsi_gtp2str(const uint64_t *imsi);
extern uint64_t gtp_imsi_str2gtp(const char *str);
#endif /* !_GTP_H */

1
sgsnemu/sgsnemu.c
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@@ -62,6 +62,7 @@
#include "../lib/syserr.h"
#include "../lib/netns.h"
#include "../lib/icmpv6.h"
#include "../gtp/gtp_internal.h"
#include "cmdline.h"
#define IPADDRLEN 256 /* Character length of addresses */