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Merge 29397c078c into 3dd4d417be

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enkechen-panw 2025-04-29 16:20:43 +00:00 committed by GitHub
parent 3dd4d417be 29397c078c
commit 139edffeef
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4 changed files with 20 additions and 3 deletions
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8
bgpd/bgp_nexthop.c
View file

@ -584,6 +584,14 @@ bool bgp_nexthop_self(struct bgp *bgp, afi_t afi, uint8_t type,
return false;
}
bool bgp_hostroute_self(struct bgp *bgp, const struct prefix *p)
{
struct bgp_addr tmp;
tmp.p = *p;
return hash_lookup(bgp->address_hash, &tmp) ? true : false;
}
bool bgp_multiaccess_check_v4(struct in_addr nexthop, struct peer *peer)
{
struct bgp_dest *dest1;

1
bgpd/bgp_nexthop.h
View file

@ -134,6 +134,7 @@ extern int bgp_config_write_scan_time(struct vty *);
extern bool bgp_nexthop_self(struct bgp *bgp, afi_t afi, uint8_t type,
uint8_t sub_type, struct attr *attr,
struct bgp_dest *dest);
extern bool bgp_hostroute_self(struct bgp *bgp, const struct prefix *p);
extern struct bgp_nexthop_cache *bnc_new(struct bgp_nexthop_cache_head *tree,
struct prefix *prefix,
uint32_t srte_color,

8
bgpd/bgp_route.c
View file

@ -5162,6 +5162,14 @@ void bgp_update(struct peer *peer, const struct prefix *p, uint32_t addpath_id,
goto filtered;
}
/* Do not accept a host route that matches a local address. */
if (((safi == SAFI_UNICAST) || (safi == SAFI_LABELED_UNICAST)) && is_host_route(p)) {
if (bgp_hostroute_self(bgp, p)) {
reason = "host route matches a local address";
goto filtered;
}
}
/* Apply incoming filter. */
if (bgp_input_filter(peer, p, attr, afi, orig_safi) == FILTER_DENY) {
peer->stat_pfx_filter++;

6
tests/topotests/bgp_l3vpn_to_bgp_direct/scripts/check_routes.py
View file

@ -3,21 +3,21 @@ from lib.lutil import luCommand
luCommand(
"ce1",
'vtysh -c "show bgp ipv4 uni"',
"7 routes and 7",
"6 routes and 6",
"wait",
"Local and remote routes",
)
luCommand(
"ce2",
'vtysh -c "show bgp ipv4 uni"',
"7 routes and 9",
"6 routes and 8",
"wait",
"Local and remote routes",
)
luCommand(
"ce3",
'vtysh -c "show bgp ipv4 uni"',
"7 routes and 7",
"6 routes and 6",
"wait",
"Local and remote routes",
)