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isisd: Add pack func for SID Structure Sub-Sub-TLV

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Add a function to pack an SRv6 SID Structure Sub-Sub-TLV
(RFC 9352 section #9).

Signed-off-by: Carmine Scarpitta <carmine.scarpitta@uniroma2.it>
This commit is contained in:
Carmine Scarpitta 2023-02-14 16:03:58 +01:00
parent b5cd8ab2b7
commit 2dfe8ef463
1 changed files with 20 additions and 0 deletions
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20
isisd/isis_tlvs.c
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@ -2015,6 +2015,26 @@ static void free_subsubtlv_srv6_sid_structure(
XFREE(MTYPE_ISIS_SUBSUBTLV, sid_struct); XFREE(MTYPE_ISIS_SUBSUBTLV, sid_struct);
} }
static int pack_subsubtlv_srv6_sid_structure(
struct isis_srv6_sid_structure_subsubtlv *sid_struct, struct stream *s)
{
if (!sid_struct)
return 0;
if (STREAM_WRITEABLE(s) < 6) {
return 1;
}
stream_putc(s, ISIS_SUBSUBTLV_SRV6_SID_STRUCTURE);
stream_putc(s, 4);
stream_putc(s, sid_struct->loc_block_len);
stream_putc(s, sid_struct->loc_node_len);
stream_putc(s, sid_struct->func_len);
stream_putc(s, sid_struct->arg_len);
return 0;
}
static struct isis_item *copy_item(enum isis_tlv_context context, static struct isis_item *copy_item(enum isis_tlv_context context,
enum isis_tlv_type type, enum isis_tlv_type type,
struct isis_item *item); struct isis_item *item);