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Merge pull request #15377 from opensourcerouting/fix/bgpd_evpn_route_map

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lib: Do not convert EVPN prefixes into IPv4/IPv6 if not needed
This commit is contained in:
Russ White 2024-02-20 10:17:46 -05:00 committed by GitHub
commit 8dbfc57ec6
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GPG Key ID: B5690EEEBB952194
3 changed files with 23 additions and 28 deletions
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29
lib/routemap.c
View File

@ -2548,7 +2548,6 @@ route_map_result_t route_map_apply_ext(struct route_map *map,
struct route_map_index *index = NULL;
struct route_map_rule *set = NULL;
bool skip_match_clause = false;
struct prefix conv;
if (recursion > RMAP_RECURSION_LIMIT) {
if (map)
@ -2571,31 +2570,14 @@ route_map_result_t route_map_apply_ext(struct route_map *map,
map->applied++;
/*
* Handling for matching evpn_routes in the prefix table.
*
* We convert type2/5 prefix to ipv4/6 prefix to do longest
* prefix matching on.
*/
if (prefix->family == AF_EVPN) {
if (evpn_prefix2prefix(prefix, &conv) != 0) {
if (unlikely(CHECK_FLAG(rmap_debug,
DEBUG_ROUTEMAP_DETAIL)))
zlog_debug(
"Unable to convert EVPN prefix %pFX into IPv4/IPv6 prefix. Falling back to non-optimized route-map lookup",
prefix);
} else {
if (unlikely(CHECK_FLAG(rmap_debug,
DEBUG_ROUTEMAP_DETAIL)))
zlog_debug(
"Converted EVPN prefix %pFX into %pFX for optimized route-map lookup",
prefix, &conv);
prefix = &conv;
}
index = map->head;
} else {
skip_match_clause = true;
index = route_map_get_index(map, prefix, match_object,
&match_ret);
}
index = route_map_get_index(map, prefix, match_object, &match_ret);
if (index) {
index->applied++;
if (unlikely(CHECK_FLAG(rmap_debug, DEBUG_ROUTEMAP)))
@ -2619,7 +2601,6 @@ route_map_result_t route_map_apply_ext(struct route_map *map,
ret = RMAP_DENYMATCH;
goto route_map_apply_end;
}
skip_match_clause = true;
for (; index; index = index->next) {
if (!skip_match_clause) {

16
tests/topotests/bgp_evpn_route_map_match/r1/frr.conf
View File

@ -1,5 +1,8 @@
!
!debug bgp neighbor
!debug route-map detail
!
vni 10
!
int lo
ip address 10.10.10.1/32
@ -9,22 +12,33 @@ int r1-eth1
!
router bgp 65001
no bgp ebgp-requires-policy
no bgp network import-check
neighbor 192.168.1.2 remote-as external
neighbor 192.168.1.2 timers 1 3
neighbor 192.168.1.2 timers connect 1
!
address-family ipv4 unicast
redistribute connected
network 10.10.10.10/32
exit-address-family
!
address-family l2vpn evpn
neighbor 192.168.1.2 activate
neighbor 192.168.1.2 route-map r2 out
advertise-all-vni
advertise ipv4 unicast
exit-address-family
!
route-map r2 deny 10
match evpn route-type macip
!
route-map r2 permit 20
route-map r2 deny 20
match ip address prefix-list pl
match evpn route-type prefix
!
route-map r2 permit 30
!
ip prefix-list pl seq 5 permit 192.168.1.0/24
ip prefix-list pl seq 10 permit 10.10.10.1/32
ip prefix-list pl seq 15 permit 10.10.10.2/32
!

6
tests/topotests/bgp_evpn_route_map_match/test_bgp_evpn_route_map_match.py
View File

@ -83,8 +83,8 @@ def test_bgp_evpn_route_map_match_route_type():
)
expected = {
"advertisedRoutes": {
"10.10.10.1:2": {
"[3]:[0]:[32]:[10.10.10.1]": {
"10.10.10.1:1": {
"[5]:[0]:[32]:[10.10.10.10]": {
"valid": True,
}
},
@ -102,7 +102,7 @@ def test_bgp_evpn_route_map_match_route_type():
_bgp_converge,
)
_, result = topotest.run_and_expect(test_func, None, count=60, wait=1)
assert result is None, "MAC-IP EVPN routes should not be advertised"
assert result is None, "Filtered EVPN routes should not be advertised"
if __name__ == "__main__":