diff options
| author | Carmine Scarpitta <carmine.scarpitta@uniroma2.it> | 2023-06-03 12:11:27 +0200 |
|---|---|---|
| committer | Carmine Scarpitta <carmine.scarpitta@uniroma2.it> | 2023-09-11 22:11:30 +0200 |
| commit | bc6e273046a6ee8c51bb165aab68380440def8e1 (patch) | |
| tree | 479e45563a687af4b7a65ac0096c4b0dde04d1e4 /isisd/isis_tlvs.c | |
| parent | 422ea2d410a7b9dd23d2ff9f58c5ee3eff2b12aa (diff) | |
isisd: Pack Sub-Sub-TLVs of SRv6 End SID Sub-TLV
Extend SRv6 End SID Sub-TLV pack function to pack Sub-Sub-TLVs (RFC 9352
section #9).
Signed-off-by: Carmine Scarpitta <carmine.scarpitta@uniroma2.it>
Diffstat (limited to 'isisd/isis_tlvs.c')
| -rw-r--r-- | isisd/isis_tlvs.c | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/isisd/isis_tlvs.c b/isisd/isis_tlvs.c index ec3cce391e..2a17d79ef1 100644 --- a/isisd/isis_tlvs.c +++ b/isisd/isis_tlvs.c @@ -2209,9 +2209,21 @@ static int pack_item_srv6_end_sid(struct isis_item *i, struct stream *s, stream_putw(s, sid->behavior); stream_put(s, &sid->sid, IPV6_MAX_BYTELEN); - /* Put 0 as Sub-Sub-TLV length, because we don't support any Sub-Sub-TLV - * at this time */ - stream_putc(s, 0); + if (sid->subsubtlvs) { + /* Pack Sub-Sub-TLVs */ + if (isis_pack_subsubtlvs(sid->subsubtlvs, s)) + return 1; + } else { + /* No Sub-Sub-TLVs */ + if (STREAM_WRITEABLE(s) < 1) { + *min_len = 20; + return 1; + } + + /* Put 0 as Sub-Sub-TLV length, because we have no Sub-Sub-TLVs + */ + stream_putc(s, 0); + } return 0; } |