diff options
Diffstat (limited to 'bgpd/bgp_addpath.c')
| -rw-r--r-- | bgpd/bgp_addpath.c | 33 |
1 files changed, 32 insertions, 1 deletions
diff --git a/bgpd/bgp_addpath.c b/bgpd/bgp_addpath.c index de4b4a4..f391c13 100644 --- a/bgpd/bgp_addpath.c +++ b/bgpd/bgp_addpath.c @@ -10,6 +10,8 @@ #include "bgp_addpath.h" #include "bgp_route.h" +#include "bgp_open.h" +#include "bgp_packet.h" static const struct bgp_addpath_strategy_names strat_names[BGP_ADDPATH_MAX] = { { @@ -359,6 +361,31 @@ void bgp_addpath_type_changed(struct bgp *bgp) } } +int bgp_addpath_capability_action(enum bgp_addpath_strat addpath_type, + uint8_t paths) +{ + int action = CAPABILITY_ACTION_UNSET; + + switch (addpath_type) { + case BGP_ADDPATH_ALL: + case BGP_ADDPATH_BEST_PER_AS: + action = CAPABILITY_ACTION_SET; + break; + case BGP_ADDPATH_BEST_SELECTED: + if (paths) + action = CAPABILITY_ACTION_SET; + else + action = CAPABILITY_ACTION_UNSET; + break; + case BGP_ADDPATH_NONE: + case BGP_ADDPATH_MAX: + action = CAPABILITY_ACTION_UNSET; + break; + } + + return action; +} + /* * Change the addpath type assigned to a peer, or peer group. In addition to * adjusting the counts, peer sessions will be reset as needed to make the @@ -373,6 +400,7 @@ void bgp_addpath_set_peer_type(struct peer *peer, afi_t afi, safi_t safi, struct listnode *node, *nnode; struct peer *tmp_peer; struct peer_group *group; + int action = bgp_addpath_capability_action(addpath_type, paths); if (safi == SAFI_LABELED_UNICAST) safi = SAFI_UNICAST; @@ -430,9 +458,12 @@ void bgp_addpath_set_peer_type(struct peer *peer, afi_t afi, safi_t safi, } } } else { - peer_change_action(peer, afi, safi, peer_change_reset); + if (!CHECK_FLAG(peer->cap, PEER_CAP_DYNAMIC_RCV) && + !CHECK_FLAG(peer->cap, PEER_CAP_DYNAMIC_ADV)) + peer_change_action(peer, afi, safi, peer_change_reset); } + bgp_capability_send(peer, afi, safi, CAPABILITY_CODE_ADDPATH, action); } /* |