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Merge pull request #15690 from FRRouting/mergify/bp/stable/9.1/pr-15640

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bgpd: Fix errors handling for MP/GR capabilities as dynamic capability (backport #15640)
This commit is contained in:
Jafar Al-Gharaibeh 2024-04-08 10:38:59 -05:00 committed by GitHub
commit 45021ae829
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GPG Key ID: B5690EEEBB952194
1 changed files with 10 additions and 7 deletions
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17
bgpd/bgp_packet.c
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@ -3121,6 +3121,7 @@ static int bgp_capability_msg_parse(struct peer *peer, uint8_t *pnt,
zlog_err("%pBP: Capability length error", peer);
bgp_notify_send(peer->connection, BGP_NOTIFY_CEASE,
BGP_NOTIFY_SUBCODE_UNSPECIFIC);
pnt += length;
return BGP_Stop;
}
action = *pnt;
@ -3133,7 +3134,7 @@ static int bgp_capability_msg_parse(struct peer *peer, uint8_t *pnt,
action);
bgp_notify_send(peer->connection, BGP_NOTIFY_CEASE,
BGP_NOTIFY_SUBCODE_UNSPECIFIC);
return BGP_Stop;
goto done;
}
if (bgp_debug_neighbor_events(peer))
@ -3145,12 +3146,13 @@ static int bgp_capability_msg_parse(struct peer *peer, uint8_t *pnt,
zlog_err("%pBP: Capability length error", peer);
bgp_notify_send(peer->connection, BGP_NOTIFY_CEASE,
BGP_NOTIFY_SUBCODE_UNSPECIFIC);
pnt += length;
return BGP_Stop;
}
/* Ignore capability when override-capability is set. */
if (CHECK_FLAG(peer->flags, PEER_FLAG_OVERRIDE_CAPABILITY))
continue;
goto done;
capability = lookup_msg(capcode_str, hdr->code, "Unknown");
@ -3165,7 +3167,7 @@ static int bgp_capability_msg_parse(struct peer *peer, uint8_t *pnt,
peer, capability,
sizeof(struct capability_mp_data),
hdr->length);
return BGP_Stop;
goto done;
}
memcpy(&mpc, pnt + 3, sizeof(struct capability_mp_data));
@ -3180,7 +3182,7 @@ static int bgp_capability_msg_parse(struct peer *peer, uint8_t *pnt,
peer, capability,
iana_afi2str(pkt_afi),
iana_safi2str(pkt_safi));
continue;
goto done;
}
/* Address family check. */
@ -3207,7 +3209,7 @@ static int bgp_capability_msg_parse(struct peer *peer, uint8_t *pnt,
if (peer_active_nego(peer))
bgp_clear_route(peer, afi, safi);
else
return BGP_Stop;
goto done;
}
break;
case CAPABILITY_CODE_RESTART:
@ -3217,7 +3219,7 @@ static int bgp_capability_msg_parse(struct peer *peer, uint8_t *pnt,
bgp_notify_send(peer->connection,
BGP_NOTIFY_CEASE,
BGP_NOTIFY_SUBCODE_UNSPECIFIC);
return BGP_Stop;
goto done;
}
bgp_dynamic_capability_graceful_restart(pnt, action,
@ -3243,7 +3245,7 @@ static int bgp_capability_msg_parse(struct peer *peer, uint8_t *pnt,
bgp_notify_send(peer->connection,
BGP_NOTIFY_CEASE,
BGP_NOTIFY_SUBCODE_UNSPECIFIC);
return BGP_Stop;
goto done;
}
uint8_t role;
@ -3265,6 +3267,7 @@ static int bgp_capability_msg_parse(struct peer *peer, uint8_t *pnt,
break;
}
done:
pnt += hdr->length + 3;
}