diff options
| -rw-r--r-- | isisd/isis_tlvs.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/isisd/isis_tlvs.c b/isisd/isis_tlvs.c index 50110a4e2f..117c90a8af 100644 --- a/isisd/isis_tlvs.c +++ b/isisd/isis_tlvs.c @@ -2014,6 +2014,25 @@ static void isis_free_subsubtlvs(struct isis_subsubtlvs *subsubtlvs) XFREE(MTYPE_ISIS_SUBSUBTLV, subsubtlvs); } +static int isis_pack_subsubtlvs(struct isis_subsubtlvs *subsubtlvs, + struct stream *s) +{ + int rv; + size_t subsubtlv_len_pos = stream_get_endp(s); + + if (STREAM_WRITEABLE(s) < 1) + return 1; + + stream_putc(s, 0); /* Put 0 as Sub-Sub-TLVs length, filled in later */ + + size_t subsubtlv_len = stream_get_endp(s) - subsubtlv_len_pos - 1; + if (subsubtlv_len > 255) + return 1; + + stream_putc_at(s, subsubtlv_len_pos, subsubtlv_len); + return 0; +} + /* Functions related to subtlvs */ static struct isis_subtlvs *isis_alloc_subtlvs(enum isis_tlv_context context) |