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Merge pull request #15284 from opensourcerouting/feature/bgpd_announce_rpki_state_knob

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bgpd: Add neighbor X send-community extended rpki command
This commit is contained in:
Russ White 2024-02-13 09:35:10 -05:00 committed by GitHub
commit 17a0a625f0
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12 changed files with 148 additions and 20 deletions
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12
bgpd/bgp_route.c
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@ -2670,16 +2670,20 @@ bool subgroup_announce_check(struct bgp_dest *dest, struct bgp_path_info *pi,
* defined as non-transitive in [RFC8097], can be advertised to
* peers in the same OAD.
*/
if (peer->sort == BGP_PEER_IBGP || peer->sub_sort == BGP_PEER_EBGP_OAD) {
if ((peer->sort == BGP_PEER_IBGP ||
peer->sub_sort == BGP_PEER_EBGP_OAD) &&
peergroup_af_flag_check(peer, afi, safi,
PEER_FLAG_SEND_EXT_COMMUNITY_RPKI)) {
enum rpki_states rpki_state = RPKI_NOT_BEING_USED;
rpki_state = hook_call(bgp_rpki_prefix_status, peer, attr, p);
if (rpki_state != RPKI_NOT_BEING_USED)
bgp_attr_set_ecommunity(
attr, ecommunity_add_origin_validation_state(
bgp_attr_set_ecommunity(attr,
ecommunity_add_origin_validation_state(
rpki_state,
bgp_attr_get_ecommunity(attr)));
bgp_attr_get_ecommunity(
attr)));
}
/*

21
bgpd/bgp_updgrp.h
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@ -40,17 +40,16 @@
(PEER_FLAG_LOCAL_AS_NO_PREPEND | PEER_FLAG_LOCAL_AS_REPLACE_AS)
#define PEER_UPDGRP_AF_FLAGS \
(PEER_FLAG_SEND_COMMUNITY | PEER_FLAG_SEND_EXT_COMMUNITY \
| PEER_FLAG_SEND_LARGE_COMMUNITY \
| PEER_FLAG_DEFAULT_ORIGINATE | PEER_FLAG_REFLECTOR_CLIENT \
| PEER_FLAG_RSERVER_CLIENT | PEER_FLAG_NEXTHOP_SELF \
| PEER_FLAG_NEXTHOP_UNCHANGED | PEER_FLAG_FORCE_NEXTHOP_SELF \
| PEER_FLAG_AS_PATH_UNCHANGED | PEER_FLAG_MED_UNCHANGED \
| PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED | PEER_FLAG_REMOVE_PRIVATE_AS \
| PEER_FLAG_REMOVE_PRIVATE_AS_ALL \
| PEER_FLAG_REMOVE_PRIVATE_AS_REPLACE \
| PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE \
| PEER_FLAG_AS_OVERRIDE)
(PEER_FLAG_SEND_COMMUNITY | PEER_FLAG_SEND_EXT_COMMUNITY | \
PEER_FLAG_SEND_EXT_COMMUNITY_RPKI | PEER_FLAG_SEND_LARGE_COMMUNITY | \
PEER_FLAG_DEFAULT_ORIGINATE | PEER_FLAG_REFLECTOR_CLIENT | \
PEER_FLAG_RSERVER_CLIENT | PEER_FLAG_NEXTHOP_SELF | \
PEER_FLAG_NEXTHOP_UNCHANGED | PEER_FLAG_FORCE_NEXTHOP_SELF | \
PEER_FLAG_AS_PATH_UNCHANGED | PEER_FLAG_MED_UNCHANGED | \
PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED | PEER_FLAG_REMOVE_PRIVATE_AS | \
PEER_FLAG_REMOVE_PRIVATE_AS_ALL | \
PEER_FLAG_REMOVE_PRIVATE_AS_REPLACE | \
PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE | PEER_FLAG_AS_OVERRIDE)
#define PEER_UPDGRP_CAP_FLAGS (PEER_CAP_AS4_RCV)

43
bgpd/bgp_vty.c
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@ -6473,6 +6473,32 @@ ALIAS_HIDDEN(
"Send Standard Community attributes\n"
"Send Large Community attributes\n")
DEFPY (neighbor_ecommunity_rpki,
neighbor_ecommunity_rpki_cmd,
"[no$no] neighbor <A.B.C.D|X:X::X:X|WORD>$neighbor send-community extended rpki",
NO_STR
NEIGHBOR_STR
NEIGHBOR_ADDR_STR2
"Send Community attribute to this neighbor\n"
"Send Extended Community attributes\n"
"Send RPKI Extended Community attributes\n")
{
struct peer *peer;
afi_t afi = bgp_node_afi(vty);
safi_t safi = bgp_node_safi(vty);
peer = peer_and_group_lookup_vty(vty, neighbor);
if (!peer)
return CMD_WARNING_CONFIG_FAILED;
if (no)
return peer_af_flag_unset_vty(vty, neighbor, afi, safi,
PEER_FLAG_SEND_EXT_COMMUNITY_RPKI);
else
return peer_af_flag_set_vty(vty, neighbor, afi, safi,
PEER_FLAG_SEND_EXT_COMMUNITY_RPKI);
}
/* neighbor soft-reconfig. */
DEFUN (neighbor_soft_reconfiguration,
neighbor_soft_reconfiguration_cmd,
@ -17665,7 +17691,7 @@ bool peergroup_flag_check(struct peer *peer, uint64_t flag)
return !!CHECK_FLAG(peer->flags_override, flag);
}
static bool peergroup_af_flag_check(struct peer *peer, afi_t afi, safi_t safi,
bool peergroup_af_flag_check(struct peer *peer, afi_t afi, safi_t safi,
uint64_t flag)
{
if (!peer_group_active(peer)) {
@ -18442,6 +18468,12 @@ static void bgp_config_write_peer_af(struct vty *vty, struct bgp *bgp,
if (flag_slcomm)
vty_out(vty, " no neighbor %s send-community large\n",
addr);
if (peergroup_af_flag_check(peer, afi, safi,
PEER_FLAG_SEND_EXT_COMMUNITY_RPKI))
vty_out(vty,
" no neighbor %s send-community extended rpki\n",
addr);
}
/* Default information */
@ -20327,6 +20359,15 @@ void bgp_vty_init(void)
install_element(BGP_VPNV6_NODE, &neighbor_send_community_type_cmd);
install_element(BGP_VPNV6_NODE, &no_neighbor_send_community_cmd);
install_element(BGP_VPNV6_NODE, &no_neighbor_send_community_type_cmd);
install_element(BGP_NODE, &neighbor_ecommunity_rpki_cmd);
install_element(BGP_IPV4_NODE, &neighbor_ecommunity_rpki_cmd);
install_element(BGP_IPV4M_NODE, &neighbor_ecommunity_rpki_cmd);
install_element(BGP_IPV4L_NODE, &neighbor_ecommunity_rpki_cmd);
install_element(BGP_IPV6_NODE, &neighbor_ecommunity_rpki_cmd);
install_element(BGP_IPV6M_NODE, &neighbor_ecommunity_rpki_cmd);
install_element(BGP_IPV6L_NODE, &neighbor_ecommunity_rpki_cmd);
install_element(BGP_VPNV4_NODE, &neighbor_ecommunity_rpki_cmd);
install_element(BGP_VPNV6_NODE, &neighbor_ecommunity_rpki_cmd);
/* "neighbor route-reflector" commands.*/
install_element(BGP_NODE, &neighbor_route_reflector_client_hidden_cmd);

2
bgpd/bgp_vty.h
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@ -171,5 +171,7 @@ extern int bgp_show_summary_vty(struct vty *vty, const char *name, afi_t afi,
safi_t safi, const char *neighbor, int as_type,
as_t as, uint16_t show_flags);
extern bool peergroup_flag_check(struct peer *peer, uint64_t flag);
extern bool peergroup_af_flag_check(struct peer *peer, afi_t afi, safi_t safi,
uint64_t flag);
#endif /* _QUAGGA_BGP_VTY_H */

5
bgpd/bgpd.c
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@ -1512,6 +1512,8 @@ struct peer *peer_new(struct bgp *bgp)
SET_FLAG(peer->af_flags[afi][safi], PEER_FLAG_SEND_COMMUNITY);
SET_FLAG(peer->af_flags[afi][safi],
PEER_FLAG_SEND_EXT_COMMUNITY);
SET_FLAG(peer->af_flags[afi][safi],
PEER_FLAG_SEND_EXT_COMMUNITY_RPKI);
SET_FLAG(peer->af_flags[afi][safi],
PEER_FLAG_SEND_LARGE_COMMUNITY);
@ -1519,6 +1521,8 @@ struct peer *peer_new(struct bgp *bgp)
PEER_FLAG_SEND_COMMUNITY);
SET_FLAG(peer->af_flags_invert[afi][safi],
PEER_FLAG_SEND_EXT_COMMUNITY);
SET_FLAG(peer->af_flags_invert[afi][safi],
PEER_FLAG_SEND_EXT_COMMUNITY_RPKI);
SET_FLAG(peer->af_flags_invert[afi][safi],
PEER_FLAG_SEND_LARGE_COMMUNITY);
peer->addpath_type[afi][safi] = BGP_ADDPATH_NONE;
@ -4609,6 +4613,7 @@ static const struct peer_flag_action peer_af_flag_action_list[] = {
{PEER_FLAG_DISABLE_ADDPATH_RX, 0, peer_change_none},
{PEER_FLAG_SOO, 0, peer_change_reset},
{PEER_FLAG_ACCEPT_OWN, 0, peer_change_reset},
{PEER_FLAG_SEND_EXT_COMMUNITY_RPKI, 1, peer_change_reset_out},
{0, 0, 0}};
/* Proper action set. */

1
bgpd/bgpd.h
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@ -1527,6 +1527,7 @@ struct peer {
#define PEER_FLAG_MAX_PREFIX_FORCE (1ULL << 26)
#define PEER_FLAG_DISABLE_ADDPATH_RX (1ULL << 27)
#define PEER_FLAG_SOO (1ULL << 28)
#define PEER_FLAG_SEND_EXT_COMMUNITY_RPKI (1ULL << 29)
#define PEER_FLAG_ACCEPT_OWN (1ULL << 63)
enum bgp_addpath_strat addpath_type[AFI_MAX][SAFI_MAX];

13
doc/user/bgp.rst
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@ -1674,7 +1674,18 @@ Configuring Peers
modifying the `net.core.optmem_max` sysctl to a larger value to
avoid out of memory errors from the linux kernel.
.. clicmd:: neighbor PEER send-community
.. clicmd:: neighbor PEER send-community <both|all|extended|standard|large>
Send the communities to the peer.
Default: enabled.
.. clicmd:: neighbor PEER send-community extended rpki
Send the extended RPKI communities to the peer. RPKI extended community
can be send only to iBGP and eBGP-OAD peers.
Default: enabled.
.. clicmd:: neighbor PEER weight WEIGHT

6
tests/topotests/bgp_rpki_topo1/r2/bgpd.conf
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@ -4,6 +4,12 @@ router bgp 65002
neighbor 192.0.2.1 timers connect 1
neighbor 192.0.2.1 ebgp-multihop 3
neighbor 192.0.2.1 update-source 192.0.2.2
neighbor 192.168.4.4 remote-as internal
neighbor 192.168.4.4 timers 1 3
neighbor 192.168.4.4 timers connect 1
address-family ipv4 unicast
neighbor 192.168.4.4 next-hop-self
exit-address-family
!
router bgp 65002 vrf vrf10
no bgp ebgp-requires-policy

3
tests/topotests/bgp_rpki_topo1/r2/zebra.conf
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@ -10,3 +10,6 @@ interface r2-eth0
interface r2-eth1 vrf vrf10
ip address 192.168.2.2/24
!
interface r2-eth2
ip address 192.168.4.2/24
!

6
tests/topotests/bgp_rpki_topo1/r4/bgpd.conf Normal file
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@ -0,0 +1,6 @@
router bgp 65002
no bgp ebgp-requires-policy
neighbor 192.168.4.2 remote-as internal
neighbor 192.168.4.2 timers 1 3
neighbor 192.168.4.2 timers connect 1
!

4
tests/topotests/bgp_rpki_topo1/r4/zebra.conf Normal file
View File

@ -0,0 +1,4 @@
!
interface r4-eth0
ip address 192.168.4.4/24
!

48
tests/topotests/bgp_rpki_topo1/test_bgp_rpki_topo1.py
View File

@ -22,7 +22,7 @@ pytestmark = [pytest.mark.bgpd]
def build_topo(tgen):
for routern in range(1, 4):
for routern in range(1, 5):
tgen.add_router("r{}".format(routern))
switch = tgen.add_switch("s1")
@ -33,6 +33,10 @@ def build_topo(tgen):
switch.add_link(tgen.gears["r2"])
switch.add_link(tgen.gears["r3"])
switch = tgen.add_switch("s3")
switch.add_link(tgen.gears["r2"])
switch.add_link(tgen.gears["r4"])
def setup_module(mod):
tgen = Topogen(build_topo, mod.__name__)
@ -402,6 +406,48 @@ router bgp 65002 vrf vrf10
assert result is None, "Unexpected prefixes RPKI state on {}".format(rname)
def test_bgp_ecommunity_rpki():
tgen = get_topogen()
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
r2 = tgen.gears["r2"]
r4 = tgen.gears["r4"]
# Flush all the states what was before and try sending out the prefixes
# with RPKI extended community.
r2.vtysh_cmd("clear ip bgp 192.168.4.4 soft out")
def _bgp_check_ecommunity_rpki(community=None):
output = json.loads(r4.vtysh_cmd("show bgp ipv4 unicast 198.51.100.0/24 json"))
expected = {
"paths": [
{
"extendedCommunity": community,
}
]
}
return topotest.json_cmp(output, expected)
test_func = functools.partial(_bgp_check_ecommunity_rpki, {"string": "OVS:valid"})
_, result = topotest.run_and_expect(test_func, None, count=30, wait=1)
assert result is None, "Didn't receive RPKI extended community"
r2.vtysh_cmd(
"""
configure terminal
router bgp 65002
address-family ipv4 unicast
no neighbor 192.168.4.4 send-community extended rpki
"""
)
test_func = functools.partial(_bgp_check_ecommunity_rpki)
_, result = topotest.run_and_expect(test_func, None, count=30, wait=1)
assert result is None, "Received RPKI extended community"
if __name__ == "__main__":
args = ["-s"] + sys.argv[1:]
sys.exit(pytest.main(args))