+// SPDX-License-Identifier: GPL-2.0-or-later
/* BGP routing information
* Copyright (C) 1996, 97, 98, 99 Kunihiro Ishiguro
* Copyright (C) 2016 Job Snijders <job@instituut.net>
- *
- * This file is part of GNU Zebra.
- *
- * GNU Zebra is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2, or (at your option) any
- * later version.
- *
- * GNU Zebra is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; see the file COPYING; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <zebra.h>
case SAFI_ENCAP:
case SAFI_EVPN:
return (struct prefix_rd *)(bgp_dest_get_prefix(dest));
- default:
+ case SAFI_UNSPEC:
+ case SAFI_UNICAST:
+ case SAFI_MULTICAST:
+ case SAFI_LABELED_UNICAST:
+ case SAFI_FLOWSPEC:
+ case SAFI_MAX:
return NULL;
}
+
+ assert(!"Reached end of function when we were not expecting it");
}
/* Display specified route of BGP table. */
case AFI_L2VPN:
space = EVPN_ROUTE_PREFIXLEN;
break;
- default:
+ case AFI_UNSPEC:
+ case AFI_MAX:
return;
}
case AFI_L2VPN:
bitlen = EVPN_ROUTE_PREFIXLEN;
break;
- default:
+ case AFI_UNSPEC:
+ case AFI_MAX:
break;
}
const char *rmap_name, json_object *json, json_object *json_ar,
json_object *json_scode, json_object *json_ocode,
uint16_t show_flags, int *header1, int *header2, char *rd_str,
- unsigned long *output_count, unsigned long *filtered_count)
+ const struct prefix *match, unsigned long *output_count,
+ unsigned long *filtered_count)
{
- struct bgp_adj_in *ain;
- struct bgp_adj_out *adj;
+ struct bgp_adj_in *ain = NULL;
+ struct bgp_adj_out *adj = NULL;
struct bgp_dest *dest;
struct bgp *bgp;
struct attr attr;
int ret;
struct update_subgroup *subgrp;
- struct peer_af *paf;
+ struct peer_af *paf = NULL;
bool route_filtered;
bool detail = CHECK_FLAG(show_flags, BGP_SHOW_OPT_ROUTES_DETAIL);
bool use_json = CHECK_FLAG(show_flags, BGP_SHOW_OPT_JSON);
bgp = peer->bgp;
+ /* If the user supplied a prefix, look for a matching route instead
+ * of walking the whole table.
+ */
+ if (match) {
+ dest = bgp_node_match(table, match);
+ if (!dest) {
+ if (!use_json)
+ vty_out(vty, "Network not in table\n");
+ return;
+ }
+
+ const struct prefix *rn_p = bgp_dest_get_prefix(dest);
+
+ if (rn_p->prefixlen != match->prefixlen) {
+ if (!use_json)
+ vty_out(vty, "Network not in table\n");
+ bgp_dest_unlock_node(dest);
+ return;
+ }
+
+ if (type == bgp_show_adj_route_received ||
+ type == bgp_show_adj_route_filtered) {
+ for (ain = dest->adj_in; ain; ain = ain->next) {
+ if (ain->peer == peer) {
+ attr = *ain->attr;
+ break;
+ }
+ }
+ /* bail out if if adj_out is empty, or
+ * if the prefix isn't in this peer's
+ * adj_in
+ */
+ if (!ain || ain->peer != peer) {
+ if (!use_json)
+ vty_out(vty, "Network not in table\n");
+ bgp_dest_unlock_node(dest);
+ return;
+ }
+ } else if (type == bgp_show_adj_route_advertised) {
+ bool peer_found = false;
+
+ RB_FOREACH (adj, bgp_adj_out_rb, &dest->adj_out) {
+ SUBGRP_FOREACH_PEER (adj->subgroup, paf) {
+ if (paf->peer == peer && adj->attr) {
+ attr = *adj->attr;
+ peer_found = true;
+ break;
+ }
+ }
+ if (peer_found)
+ break;
+ }
+ /* bail out if if adj_out is empty, or
+ * if the prefix isn't in this peer's
+ * adj_out
+ */
+ if (!paf || !peer_found) {
+ if (!use_json)
+ vty_out(vty, "Network not in table\n");
+ bgp_dest_unlock_node(dest);
+ return;
+ }
+ }
+
+ ret = bgp_output_modifier(peer, rn_p, &attr, afi, safi,
+ rmap_name);
+
+ if (ret != RMAP_DENY) {
+ show_adj_route_header(vty, peer, table, header1,
+ header2, json, json_scode,
+ json_ocode, wide, detail);
+
+ if (use_json)
+ json_net = json_object_new_object();
+
+ bgp_show_path_info(NULL /* prefix_rd */, dest, vty, bgp,
+ afi, safi, json_net,
+ BGP_PATH_SHOW_ALL, &display,
+ RPKI_NOT_BEING_USED);
+ if (use_json)
+ json_object_object_addf(json_ar, json_net,
+ "%pFX", rn_p);
+ (*output_count)++;
+ } else
+ (*filtered_count)++;
+
+ bgp_attr_flush(&attr);
+ bgp_dest_unlock_node(dest);
+ return;
+ }
+
+
subgrp = peer_subgroup(peer, afi, safi);
if (type == bgp_show_adj_route_advertised && subgrp
header2, json, json_scode,
json_ocode, wide, detail);
+ const struct prefix *rn_p = bgp_dest_get_prefix(dest);
+
for (pi = bgp_dest_get_bgp_path_info(dest); pi;
pi = pi->next) {
if (pi->peer != peer)
if (!CHECK_FLAG(pi->flags, BGP_PATH_SELECTED))
continue;
- route_vty_out_tmp(vty, dest,
- bgp_dest_get_prefix(dest),
- pi->attr, safi, use_json,
- json_ar, wide);
+ if (detail) {
+ if (use_json)
+ json_net =
+ json_object_new_object();
+ bgp_show_path_info(
+ NULL /* prefix_rd */, dest, vty,
+ bgp, afi, safi, json_net,
+ BGP_PATH_SHOW_BESTPATH,
+ &display, RPKI_NOT_BEING_USED);
+ if (use_json)
+ json_object_object_addf(
+ json_ar, json_net,
+ "%pFX", rn_p);
+ } else
+ route_vty_out_tmp(
+ vty, dest, rn_p, pi->attr, safi,
+ use_json, json_ar, wide);
(*output_count)++;
}
}
static int peer_adj_routes(struct vty *vty, struct peer *peer, afi_t afi,
safi_t safi, enum bgp_show_adj_route_type type,
- const char *rmap_name, uint16_t show_flags)
+ const char *rmap_name, const struct prefix *match,
+ uint16_t show_flags)
{
struct bgp *bgp;
struct bgp_table *table;
prefix_rd2str(prd, rd_str, sizeof(rd_str));
- show_adj_route(vty, peer, table, afi, safi, type,
- rmap_name, json, json_routes, json_scode,
- json_ocode, show_flags, &header1,
- &header2, rd_str, &output_count_per_rd,
- &filtered_count_per_rd);
+ show_adj_route(
+ vty, peer, table, afi, safi, type, rmap_name,
+ json, json_routes, json_scode, json_ocode,
+ show_flags, &header1, &header2, rd_str, match,
+ &output_count_per_rd, &filtered_count_per_rd);
/* Don't include an empty RD in the output! */
if (json_routes && (output_count_per_rd > 0))
} else
show_adj_route(vty, peer, table, afi, safi, type, rmap_name,
json, json_ar, json_scode, json_ocode,
- show_flags, &header1, &header2, rd_str,
+ show_flags, &header1, &header2, rd_str, match,
&output_count, &filtered_count);
if (use_json) {
vty_json(vty, json);
} else if (output_count > 0) {
- if (filtered_count > 0)
+ if (!match && filtered_count > 0)
vty_out(vty,
"\nTotal number of prefixes %ld (%ld filtered)\n",
output_count, filtered_count);
DEFPY (show_ip_bgp_instance_neighbor_bestpath_route,
show_ip_bgp_instance_neighbor_bestpath_route_cmd,
- "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR" ["BGP_SAFI_WITH_LABEL_CMD_STR"]] neighbors <A.B.C.D|X:X::X:X|WORD> bestpath-routes [json$uj | wide$wide]",
+ "show [ip] bgp [<view|vrf> VIEWVRFNAME] [" BGP_AFI_CMD_STR " [" BGP_SAFI_WITH_LABEL_CMD_STR "]] neighbors <A.B.C.D|X:X::X:X|WORD> bestpath-routes [detail$detail] [json$uj | wide$wide]",
SHOW_STR
IP_STR
BGP_STR
"Neighbor to display information about\n"
"Neighbor on BGP configured interface\n"
"Display the routes selected by best path\n"
+ "Display detailed version of routes\n"
JSON_STR
"Increase table width for longer prefixes\n")
{
int idx = 0;
uint16_t show_flags = 0;
+ if (detail)
+ SET_FLAG(show_flags, BGP_SHOW_OPT_ROUTES_DETAIL);
+
if (uj)
SET_FLAG(show_flags, BGP_SHOW_OPT_JSON);
if (!peer)
return CMD_WARNING;
- return peer_adj_routes(vty, peer, afi, safi, type, rmap_name,
+ return peer_adj_routes(vty, peer, afi, safi, type, rmap_name, NULL,
show_flags);
}
DEFPY(show_ip_bgp_instance_neighbor_advertised_route,
show_ip_bgp_instance_neighbor_advertised_route_cmd,
- "show [ip] bgp [<view|vrf> VIEWVRFNAME] [" BGP_AFI_CMD_STR " [" BGP_SAFI_WITH_LABEL_CMD_STR "]] [all$all] neighbors <A.B.C.D|X:X::X:X|WORD> <advertised-routes|received-routes|filtered-routes> [route-map RMAP_NAME$route_map] [detail$detail] [json$uj | wide$wide]",
+ "show [ip] bgp [<view|vrf> VIEWVRFNAME] [" BGP_AFI_CMD_STR " [" BGP_SAFI_WITH_LABEL_CMD_STR "]] [all$all] neighbors <A.B.C.D|X:X::X:X|WORD> <advertised-routes|received-routes|filtered-routes> [route-map RMAP_NAME$route_map] [<A.B.C.D/M|X:X::X:X/M>$prefix | detail$detail] [json$uj | wide$wide]",
SHOW_STR
IP_STR
BGP_STR
"Display the filtered routes received from neighbor\n"
"Route-map to modify the attributes\n"
"Name of the route map\n"
+ "IPv4 prefix\n"
+ "IPv6 prefix\n"
"Display detailed version of routes\n"
JSON_STR
"Increase table width for longer prefixes\n")
struct listnode *node;
struct bgp *abgp;
- if (detail)
+ if (detail || prefix_str)
SET_FLAG(show_flags, BGP_SHOW_OPT_ROUTES_DETAIL);
if (uj) {
if (!all)
return peer_adj_routes(vty, peer, afi, safi, type, route_map,
- show_flags);
+ prefix_str ? prefix : NULL, show_flags);
if (uj)
vty_out(vty, "{\n");
false));
peer_adj_routes(vty, peer, afi, safi, type,
- route_map, show_flags);
+ route_map, prefix, show_flags);
}
}
} else {
false));
peer_adj_routes(vty, peer, afi, safi, type,
- route_map, show_flags);
+ route_map, prefix, show_flags);
}
}
}
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