I'd like to add more sub-levels in an upcoming commit, and the levels
are becoming too many. So let's get rid of one depth level in the
'Running osmo-upf' chapter.
Change-Id: I0bd43300aa4b45315ea58ab35c77da005d1a4fa4
So far the config nodes were named after the implementation:
"GTP kernel module" = "gtp" and
"netfilter" = "nft"
We found that this is confusing, since both are related to handling GTP.
Rename "nft" to "tunmap"; a previous patch already renamed "gtp" to
"tunend".
Keep a hidden "nft" VTY cmd as backwards compat alias.
Related: SYS#6192
Change-Id: Ia3c5224dd3b5f5c9437bbdec997d02176818cc97
So far the config nodes were named after the implementation:
"GTP kernel module" = "gtp" and
"netfilter" = "nft"
We found that this is confusing, since both are related to handling GTP.
Rename "gtp" to "tunend"; a subsequent patch will rename "nft" to
"tunmap".
Keep a hidden "gtp" VTY cmd as backwards compat alias.
In log output, also print "tunend" instead of "endecaps"
(up_gtp_action_to_str_buf()).
Related: SYS#6192
Change-Id: I49ac7b1f8b5b74f586edfed1dfb29f9af55a521b
Add section 'Configure Primary Links' with detailed explanation of the
GTP and netfilter setup.
Related: SYS#5599
Change-Id: I2378d4856b28e81dae2a85e20aaf2999768de4d9
Actually add running.adoc to osmoupf-usermanual.adoc so that the chapter
shows in the generated PDF.
Related: SYS#5599
Change-Id: I1ae668ff75882e7ac55dd5b27566a68c449bdee5
When placing libosmo-pfcp in a separate repository, I accidentally
duplicated the charts. Since the charts are generally valid for PFCP,
libosmo-pfcp is the proper place, not here.
Change-Id: I95f11e1525b3bc6b782e5f8aecddea672a104c99
Implement support for PFCP rulesets that ask for mapping a GTP tunnel:
forwarding GTP payload between two GTP tunnels.
For a GTP tunnel mapping, dispatch netfilter rules that detect GTP
packets with a given source address and TEID, and replace the TEID and
destination address according to the PFCP ruleset.
The netfilter implementation is chosen to effect the packet rewriting
and forwarding to take place directly in the kernel, for high throughput
of GTP packets.
Related: SYS#5599
Change-Id: Ic0d319eb4f98cd51a5999c804c4203ab0bdda650
To avoid actions that require cap_net_admin permissions on build
servers, add this option to "dry run" all kernel GTP actions. Same will
be added for netfilter rules.
On startup, osmo-upf opens sockets to GTP kernel module / NFT ctx.
However, on build servers, this would require giving cap_net_admin
permissions just to run the VTY tests.
Related: SYS#5599
Change-Id: I3b9c796186307fd8562abcff3f0ccfab0e88b6c8
