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| author | Russ White <russ@riw.us> | 2025-02-05 10:17:46 -0500 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2025-02-05 10:17:46 -0500 |
| commit | a02ec27693ddfa708ec1f62400af6cea533bf1e8 (patch) | |
| tree | 125bea946c278151d8cd543494be3be3d9094aa3 | |
| parent | 0b42b4ce6d7ccb43931c391e916ac6bf0a0aadf2 (diff) | |
| parent | af8e7922052d9d579496b5bbc9bb52850ae2094e (diff) | |
Merge pull request #17987 from pguibert6WIND/evpn_bgp_l2_attr_ext_community
bgpd: add L2 attr community support as per RFC8214
| -rw-r--r-- | bgpd/bgp_ecommunity.c | 25 | ||||
| -rw-r--r-- | bgpd/bgp_ecommunity.h | 6 |
2 files changed, 31 insertions, 0 deletions
diff --git a/bgpd/bgp_ecommunity.c b/bgpd/bgp_ecommunity.c index e794ccb308..2c6ae65f85 100644 --- a/bgpd/bgp_ecommunity.c +++ b/bgpd/bgp_ecommunity.c @@ -1337,6 +1337,31 @@ char *ecommunity_ecom2str(struct ecommunity *ecom, int format, int filter) snprintf(encbuf, sizeof(encbuf), "DF: (alg: %u, pref: %u)", alg, pref); + } else if (*pnt == ECOMMUNITY_EVPN_SUBTYPE_LAYER2_ATTR) { + uint16_t flags, l2mtu; + + ++pnt; + memcpy(&flags, pnt, 2); + ++pnt; + ++pnt; + + memcpy(&l2mtu, pnt, 2); + + snprintf(encbuf, sizeof(encbuf), + "L2: P flag:%c, B Flag %c, C word %c, MTU %d", + CHECK_FLAG(flags, + ECOMMUNITY_EVPN_SUBTYPE_LAYER2_ATTR_PRIMARY_PE_FLAG) + ? 'Y' + : 'N', + CHECK_FLAG(flags, + ECOMMUNITY_EVPN_SUBTYPE_LAYER2_ATTR_BACKUP_PE_FLAG) + ? 'Y' + : 'N', + CHECK_FLAG(flags, + ECOMMUNITY_EVPN_SUBTYPE_LAYER2_ATTR_CONTROL_WORD_FLAG) + ? 'Y' + : 'N', + l2mtu); } else unk_ecom = true; } else if (type == ECOMMUNITY_ENCODE_REDIRECT_IP_NH) { diff --git a/bgpd/bgp_ecommunity.h b/bgpd/bgp_ecommunity.h index af9d481c19..0e68b15807 100644 --- a/bgpd/bgp_ecommunity.h +++ b/bgpd/bgp_ecommunity.h @@ -68,12 +68,18 @@ #define ECOMMUNITY_EVPN_SUBTYPE_ESI_LABEL 0x01 #define ECOMMUNITY_EVPN_SUBTYPE_ES_IMPORT_RT 0x02 #define ECOMMUNITY_EVPN_SUBTYPE_ROUTERMAC 0x03 +#define ECOMMUNITY_EVPN_SUBTYPE_LAYER2_ATTR 0x04 #define ECOMMUNITY_EVPN_SUBTYPE_DF_ELECTION 0x06 #define ECOMMUNITY_EVPN_SUBTYPE_DEF_GW 0x0d #define ECOMMUNITY_EVPN_SUBTYPE_ND 0x08 #define ECOMMUNITY_EVPN_SUBTYPE_MACMOBILITY_FLAG_STICKY 0x01 +/* Layer2 Attributes: RFC8214 */ +#define ECOMMUNITY_EVPN_SUBTYPE_LAYER2_ATTR_PRIMARY_PE_FLAG 0x01 +#define ECOMMUNITY_EVPN_SUBTYPE_LAYER2_ATTR_BACKUP_PE_FLAG 0x02 +#define ECOMMUNITY_EVPN_SUBTYPE_LAYER2_ATTR_CONTROL_WORD_FLAG 0x04 + /* DF alg bits - only lower 5 bits are applicable */ #define ECOMMUNITY_EVPN_SUBTYPE_DF_ALG_BITS 0x1f |