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| author | Russ White <russ@riw.us> | 2025-02-07 14:00:59 -0500 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2025-02-07 14:00:59 -0500 |
| commit | 2ef76a33506f39d98038d5239f0620e2bbf33d8c (patch) | |
| tree | 429bc11a3ad346a64c85082a36e9ce2c91655ae5 /bgpd/bgp_open.c | |
| parent | eebe460168fe15869ca0eb948072fcd691de0953 (diff) | |
| parent | db853cc97eafee8742cd391aaa2b5bc58a6751ae (diff) | |
Merge pull request #17871 from opensourcerouting/feature/bgp_link_local_capability
bgpd: Implement Link-Local Next Hop capability
Diffstat (limited to 'bgpd/bgp_open.c')
| -rw-r--r-- | bgpd/bgp_open.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/bgpd/bgp_open.c b/bgpd/bgp_open.c index 6451c7cf38..be04d87b74 100644 --- a/bgpd/bgp_open.c +++ b/bgpd/bgp_open.c @@ -43,6 +43,7 @@ const struct message capcode_str[] = { { CAPABILITY_CODE_ROLE, "Role" }, { CAPABILITY_CODE_SOFT_VERSION, "Software Version" }, { CAPABILITY_CODE_PATHS_LIMIT, "Paths-Limit" }, + { CAPABILITY_CODE_LINK_LOCAL, "Link-Local Next Hop" }, { 0 } }; @@ -63,6 +64,7 @@ const size_t cap_minsizes[] = { [CAPABILITY_CODE_ROLE] = CAPABILITY_CODE_ROLE_LEN, [CAPABILITY_CODE_SOFT_VERSION] = CAPABILITY_CODE_SOFT_VERSION_LEN, [CAPABILITY_CODE_PATHS_LIMIT] = CAPABILITY_CODE_PATHS_LIMIT_LEN, + [CAPABILITY_CODE_LINK_LOCAL] = CAPABILITY_CODE_LINK_LOCAL_LEN, }; /* value the capability must be a multiple of. @@ -1067,6 +1069,7 @@ static int bgp_capability_parse(struct peer *peer, size_t length, case CAPABILITY_CODE_ROLE: case CAPABILITY_CODE_SOFT_VERSION: case CAPABILITY_CODE_PATHS_LIMIT: + case CAPABILITY_CODE_LINK_LOCAL: /* Check length. */ if (caphdr.length < cap_minsizes[caphdr.code]) { zlog_info( @@ -1168,6 +1171,9 @@ static int bgp_capability_parse(struct peer *peer, size_t length, case CAPABILITY_CODE_SOFT_VERSION: ret = bgp_capability_software_version(peer, &caphdr); break; + case CAPABILITY_CODE_LINK_LOCAL: + SET_FLAG(peer->cap, PEER_CAP_LINK_LOCAL_RCV); + break; case CAPABILITY_CODE_PATHS_LIMIT: ret = bgp_capability_paths_limit(peer, &caphdr); break; @@ -1968,6 +1974,16 @@ uint16_t bgp_open_capability(struct stream *s, struct peer *peer, stream_putc(s, CAPABILITY_CODE_DYNAMIC_LEN); } + /* Link-Local Next Hop capability. */ + if (peergroup_flag_check(peer, PEER_FLAG_CAPABILITY_LINK_LOCAL)) { + SET_FLAG(peer->cap, PEER_CAP_LINK_LOCAL_ADV); + stream_putc(s, BGP_OPEN_OPT_CAP); + ext_opt_params ? stream_putw(s, CAPABILITY_CODE_LINK_LOCAL_LEN + 2) + : stream_putc(s, CAPABILITY_CODE_LINK_LOCAL_LEN + 2); + stream_putc(s, CAPABILITY_CODE_LINK_LOCAL); + stream_putc(s, CAPABILITY_CODE_LINK_LOCAL_LEN); + } + /* FQDN capability */ if (CHECK_FLAG(peer->flags, PEER_FLAG_CAPABILITY_FQDN) && cmd_hostname_get()) { |