diff options
Diffstat (limited to 'bgpd/bgp_aspath.c')
| -rw-r--r-- | bgpd/bgp_aspath.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/bgpd/bgp_aspath.c b/bgpd/bgp_aspath.c index 06f6073781..85f09ccf0b 100644 --- a/bgpd/bgp_aspath.c +++ b/bgpd/bgp_aspath.c @@ -1187,6 +1187,33 @@ int aspath_loop_check(struct aspath *aspath, as_t asno) return count; } +/* AS path loop check. If aspath contains asno + * that is a confed id then return >= 1. + */ +int aspath_loop_check_confed(struct aspath *aspath, as_t asno) +{ + struct assegment *seg; + int count = 0; + + if (aspath == NULL || aspath->segments == NULL) + return 0; + + seg = aspath->segments; + + while (seg) { + unsigned int i; + + for (i = 0; i < seg->length; i++) + if (seg->type != AS_CONFED_SEQUENCE && + seg->type != AS_CONFED_SET && seg->as[i] == asno) + count++; + + seg = seg->next; + } + return count; +} + + /* When all of AS path is private AS return 1. */ bool aspath_private_as_check(struct aspath *aspath) { |