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| author | Ryoga Saito <contact@proelbtn.com> | 2021-08-31 08:56:00 +0200 |
|---|---|---|
| committer | Ryoga Saito <contact@proelbtn.com> | 2021-09-03 03:19:49 +0200 |
| commit | cc8f05dfdc6dd8bcf6c6e716b444e12172214a16 (patch) | |
| tree | 8f72949ede3dd826037511597e5c57d655e67ce9 /bgpd | |
| parent | bgpd: introduce SID structure information (diff) | |
| download | frr-cc8f05dfdc6dd8bcf6c6e716b444e12172214a16.tar.xz frr-cc8f05dfdc6dd8bcf6c6e716b444e12172214a16.zip | |
bgpd: add transpose operation
if advertisement with SID structure Sub-Sub-TLV, we need to transpose
SID, so added transpose operation into bgp_update.
Signed-off-by: Ryoga Saito <contact@proelbtn.com>
Diffstat (limited to 'bgpd')
| -rw-r--r-- | bgpd/bgp_route.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/bgpd/bgp_route.c b/bgpd/bgp_route.c index f97a791da..7e5521ad2 100644 --- a/bgpd/bgp_route.c +++ b/bgpd/bgp_route.c @@ -4044,6 +4044,20 @@ int bgp_update(struct peer *peer, const struct prefix *p, uint32_t addpath_id, sid_copy(&extra->sid[0], &attr->srv6_l3vpn->sid); extra->num_sids = 1; + + /* + * draft-ietf-bess-srv6-services-07 + * The part of SRv6 SID may be encoded as MPLS + * Label for the efficient packing. + */ + if (attr->srv6_l3vpn->transposition_len != 0) + transpose_sid( + &extra->sid[0], + decode_label(label), + attr->srv6_l3vpn + ->transposition_offset, + attr->srv6_l3vpn + ->transposition_len); } } else if (attr->srv6_vpn) { extra = bgp_path_info_extra_get(pi); @@ -4231,6 +4245,17 @@ int bgp_update(struct peer *peer, const struct prefix *p, uint32_t addpath_id, if (attr->srv6_l3vpn) { sid_copy(&extra->sid[0], &attr->srv6_l3vpn->sid); extra->num_sids = 1; + + /* + * draft-ietf-bess-srv6-services-07 + * The part of SRv6 SID may be encoded as MPLS Label for + * the efficient packing. + */ + if (attr->srv6_l3vpn->transposition_len != 0) + transpose_sid( + &extra->sid[0], decode_label(label), + attr->srv6_l3vpn->transposition_offset, + attr->srv6_l3vpn->transposition_len); } else if (attr->srv6_vpn) { sid_copy(&extra->sid[0], &attr->srv6_vpn->sid); extra->num_sids = 1; |