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-rw-r--r--bgpd/bgp_updgrp.c1
-rw-r--r--bgpd/bgp_updgrp.h2
-rw-r--r--bgpd/bgp_updgrp_packet.c18
-rw-r--r--bgpd/bgp_vty.c87
-rw-r--r--bgpd/bgpd.h7
5 files changed, 110 insertions, 5 deletions
diff --git a/bgpd/bgp_updgrp.c b/bgpd/bgp_updgrp.c
index 5f3f5cde9..5b3eb2c71 100644
--- a/bgpd/bgp_updgrp.c
+++ b/bgpd/bgp_updgrp.c
@@ -143,6 +143,7 @@ static void conf_copy(struct peer *dst, struct peer *src, afi_t afi,
dst->v_routeadv = src->v_routeadv;
dst->flags = src->flags;
dst->af_flags[afi][safi] = src->af_flags[afi][safi];
+ dst->pmax_out[afi][safi] = src->pmax_out[afi][safi];
XFREE(MTYPE_BGP_PEER_HOST, dst->host);
dst->host = XSTRDUP(MTYPE_BGP_PEER_HOST, src->host);
diff --git a/bgpd/bgp_updgrp.h b/bgpd/bgp_updgrp.h
index bb547454f..fe654bb3e 100644
--- a/bgpd/bgp_updgrp.h
+++ b/bgpd/bgp_updgrp.h
@@ -208,7 +208,7 @@ struct update_subgroup {
struct bgp_synchronize *sync;
/* send prefix count */
- unsigned long scount;
+ uint32_t scount;
/* announcement attribute hash */
struct hash *hash;
diff --git a/bgpd/bgp_updgrp_packet.c b/bgpd/bgp_updgrp_packet.c
index 9329c8d89..39eb06528 100644
--- a/bgpd/bgp_updgrp_packet.c
+++ b/bgpd/bgp_updgrp_packet.c
@@ -744,6 +744,22 @@ struct bpacket *subgroup_update_packet(struct update_subgroup *subgrp)
addpath_tx_id = adj->addpath_tx_id;
path = adv->pathi;
+ /* Check if we need to add a prefix to the packet if
+ * maximum-prefix-out is set for the peer.
+ */
+ if (CHECK_FLAG(peer->af_flags[afi][safi],
+ PEER_FLAG_MAX_PREFIX_OUT)
+ && subgrp->scount >= peer->pmax_out[afi][safi]) {
+ if (BGP_DEBUG(update, UPDATE_OUT)
+ || BGP_DEBUG(update, UPDATE_PREFIX)) {
+ zlog_debug(
+ "%s reached maximum prefix to be send (%" PRIu32
+ ")",
+ peer->host, peer->pmax_out[afi][safi]);
+ }
+ goto next;
+ }
+
space_remaining = STREAM_CONCAT_REMAIN(s, snlri, STREAM_SIZE(s))
- BGP_MAX_PACKET_SIZE_OVERFLOW;
space_needed =
@@ -894,7 +910,7 @@ struct bpacket *subgroup_update_packet(struct update_subgroup *subgrp)
subgrp->scount++;
adj->attr = bgp_attr_intern(adv->baa->attr);
-
+next:
adv = bgp_advertise_clean_subgroup(subgrp, adj);
}
diff --git a/bgpd/bgp_vty.c b/bgpd/bgp_vty.c
index 53d973295..9dc6549d9 100644
--- a/bgpd/bgp_vty.c
+++ b/bgpd/bgp_vty.c
@@ -6058,6 +6058,56 @@ static int peer_maximum_prefix_unset_vty(struct vty *vty, const char *ip_str,
return bgp_vty_return(vty, ret);
}
+/* Maximum number of prefix to be sent to the neighbor. */
+DEFUN(neighbor_maximum_prefix_out,
+ neighbor_maximum_prefix_out_cmd,
+ "neighbor <A.B.C.D|X:X::X:X|WORD> maximum-prefix-out (1-4294967295)",
+ NEIGHBOR_STR
+ NEIGHBOR_ADDR_STR2
+ "Maximum number of prefixes to be sent to this peer\n"
+ "Maximum no. of prefix limit\n")
+{
+ int idx_peer = 1;
+ int idx_number = 3;
+ struct peer *peer;
+ uint32_t max;
+ afi_t afi = bgp_node_afi(vty);
+ safi_t safi = bgp_node_safi(vty);
+
+ peer = peer_and_group_lookup_vty(vty, argv[idx_peer]->arg);
+ if (!peer)
+ return CMD_WARNING_CONFIG_FAILED;
+
+ max = strtoul(argv[idx_number]->arg, NULL, 10);
+
+ SET_FLAG(peer->af_flags[afi][safi], PEER_FLAG_MAX_PREFIX_OUT);
+ peer->pmax_out[afi][safi] = max;
+
+ return CMD_SUCCESS;
+}
+
+DEFUN(no_neighbor_maximum_prefix_out,
+ no_neighbor_maximum_prefix_out_cmd,
+ "no neighbor <A.B.C.D|X:X::X:X|WORD> maximum-prefix-out",
+ NO_STR
+ NEIGHBOR_STR
+ NEIGHBOR_ADDR_STR2
+ "Maximum number of prefixes to be sent to this peer\n")
+{
+ int idx_peer = 2;
+ struct peer *peer;
+ afi_t afi = bgp_node_afi(vty);
+ safi_t safi = bgp_node_safi(vty);
+
+ peer = peer_and_group_lookup_vty(vty, argv[idx_peer]->arg);
+ if (!peer)
+ return CMD_WARNING_CONFIG_FAILED;
+
+ peer->pmax_out[afi][safi] = 0;
+
+ return CMD_SUCCESS;
+}
+
/* Maximum number of prefix configuration. prefix count is different
for each peer configuration. So this configuration can be set for
each peer configuration. */
@@ -9191,6 +9241,11 @@ static void bgp_show_peer_afi(struct vty *vty, struct peer *p, afi_t afi,
(PAF_SUBGRP(paf))->scount);
/* Maximum prefix */
+ if (CHECK_FLAG(p->af_flags[afi][safi], PEER_FLAG_MAX_PREFIX_OUT))
+ json_object_int_add(json_addr, "prefixOutAllowedMax",
+ p->pmax_out[afi][safi]);
+
+ /* Maximum prefix */
if (CHECK_FLAG(p->af_flags[afi][safi], PEER_FLAG_MAX_PREFIX)) {
json_object_int_add(json_addr, "prefixAllowedMax",
p->pmax[afi][safi]);
@@ -9476,6 +9531,13 @@ static void bgp_show_peer_afi(struct vty *vty, struct peer *p, afi_t afi,
vty_out(vty, " %" PRIu32 " accepted prefixes\n",
p->pcount[afi][safi]);
+ /* maximum-prefix-out */
+ if (CHECK_FLAG(p->af_flags[afi][safi],
+ PEER_FLAG_MAX_PREFIX_OUT))
+ vty_out(vty,
+ " Maximum allowed prefixes sent %" PRIu32 "\n",
+ p->pmax_out[afi][safi]);
+
/* Maximum prefix */
if (CHECK_FLAG(p->af_flags[afi][safi], PEER_FLAG_MAX_PREFIX)) {
vty_out(vty,
@@ -13579,6 +13641,11 @@ static void bgp_config_write_peer_af(struct vty *vty, struct bgp *bgp,
vty_out(vty, "\n");
}
+ /* maximum-prefix-out */
+ if (peergroup_af_flag_check(peer, afi, safi, PEER_FLAG_MAX_PREFIX_OUT))
+ vty_out(vty, " neighbor %s maximum-prefix-out %" PRIu32 "\n",
+ addr, peer->pmax_out[afi][safi]);
+
/* Route server client. */
if (peergroup_af_flag_check(peer, afi, safi,
PEER_FLAG_RSERVER_CLIENT)) {
@@ -15115,6 +15182,26 @@ void bgp_vty_init(void)
install_element(BGP_VPNV6_NODE, &neighbor_unsuppress_map_cmd);
install_element(BGP_VPNV6_NODE, &no_neighbor_unsuppress_map_cmd);
+ /* neighbor maximum-prefix-out commands. */
+ install_element(BGP_NODE, &neighbor_maximum_prefix_out_cmd);
+ install_element(BGP_NODE, &no_neighbor_maximum_prefix_out_cmd);
+ install_element(BGP_IPV4_NODE, &neighbor_maximum_prefix_out_cmd);
+ install_element(BGP_IPV4_NODE, &no_neighbor_maximum_prefix_out_cmd);
+ install_element(BGP_IPV4M_NODE, &neighbor_maximum_prefix_out_cmd);
+ install_element(BGP_IPV4M_NODE, &no_neighbor_maximum_prefix_out_cmd);
+ install_element(BGP_IPV4L_NODE, &neighbor_maximum_prefix_out_cmd);
+ install_element(BGP_IPV4L_NODE, &no_neighbor_maximum_prefix_out_cmd);
+ install_element(BGP_IPV6_NODE, &neighbor_maximum_prefix_out_cmd);
+ install_element(BGP_IPV6_NODE, &no_neighbor_maximum_prefix_out_cmd);
+ install_element(BGP_IPV6M_NODE, &neighbor_maximum_prefix_out_cmd);
+ install_element(BGP_IPV6M_NODE, &no_neighbor_maximum_prefix_out_cmd);
+ install_element(BGP_IPV6L_NODE, &neighbor_maximum_prefix_out_cmd);
+ install_element(BGP_IPV6L_NODE, &no_neighbor_maximum_prefix_out_cmd);
+ install_element(BGP_VPNV4_NODE, &neighbor_maximum_prefix_out_cmd);
+ install_element(BGP_VPNV4_NODE, &no_neighbor_maximum_prefix_out_cmd);
+ install_element(BGP_VPNV6_NODE, &neighbor_maximum_prefix_out_cmd);
+ install_element(BGP_VPNV6_NODE, &no_neighbor_maximum_prefix_out_cmd);
+
/* "neighbor maximum-prefix" commands. */
install_element(BGP_NODE, &neighbor_maximum_prefix_hidden_cmd);
install_element(BGP_NODE,
diff --git a/bgpd/bgpd.h b/bgpd/bgpd.h
index 7d8157900..4c4787ed5 100644
--- a/bgpd/bgpd.h
+++ b/bgpd/bgpd.h
@@ -988,6 +988,7 @@ struct peer {
#define PEER_FLAG_WEIGHT (1 << 24) /* weight */
#define PEER_FLAG_ALLOWAS_IN_ORIGIN (1 << 25) /* allowas-in origin */
#define PEER_FLAG_SEND_LARGE_COMMUNITY (1 << 26) /* Send large Communities */
+#define PEER_FLAG_MAX_PREFIX_OUT (1 << 27) /* outgoing maximum prefix */
enum bgp_addpath_strat addpath_type[AFI_MAX][SAFI_MAX];
@@ -1120,9 +1121,6 @@ struct peer {
/* timestamp when the last msg was written */
_Atomic time_t last_update;
- /* Send prefix count. */
- unsigned long scount[AFI_MAX][SAFI_MAX];
-
/* Notify data. */
struct bgp_notify notify;
@@ -1173,6 +1171,9 @@ struct peer {
uint16_t pmax_restart[AFI_MAX][SAFI_MAX];
#define MAXIMUM_PREFIX_THRESHOLD_DEFAULT 75
+ /* Send prefix count. */
+ uint32_t pmax_out[AFI_MAX][SAFI_MAX];
+
/* allowas-in. */
char allowas_in[AFI_MAX][SAFI_MAX];
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-08 17:15:29 +0100