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/* VPN Related functions
* Copyright (C) 2017 6WIND
*
* This file is part of FRRouting
*
* FRRouting 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.
*
* FRRouting 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>
#include "command.h"
#include "prefix.h"
#include "lib/json.h"
#include "lib/printfrr.h"
#include "bgpd/bgpd.h"
#include "bgpd/bgp_route.h"
#include "bgpd/bgp_table.h"
#include "bgpd/bgp_attr.h"
#include "bgpd/bgp_mplsvpn.h"
#include "bgpd/bgp_vpn.h"
#include "bgpd/bgp_updgrp.h"
int show_adj_route_vpn(struct vty *vty, struct peer *peer,
struct prefix_rd *prd, afi_t afi, safi_t safi,
bool use_json)
{
struct bgp *bgp;
struct bgp_table *table;
struct bgp_dest *dest;
struct bgp_dest *rm;
int rd_header;
int header = 1;
json_object *json = NULL;
json_object *json_scode = NULL;
json_object *json_ocode = NULL;
json_object *json_adv = NULL;
json_object *json_routes = NULL;
char rd_str[BUFSIZ];
unsigned long output_count = 0;
bgp = bgp_get_default();
if (bgp == NULL) {
if (!use_json)
vty_out(vty, "No BGP process is configured\n");
else
vty_out(vty, "{}\n");
return CMD_WARNING;
}
if (use_json) {
json_scode = json_object_new_object();
json_ocode = json_object_new_object();
json = json_object_new_object();
json_adv = json_object_new_object();
json_object_string_add(json_scode, "suppressed", "s");
json_object_string_add(json_scode, "damped", "d");
json_object_string_add(json_scode, "history", "h");
json_object_string_add(json_scode, "valid", "*");
json_object_string_add(json_scode, "best", ">");
json_object_string_add(json_scode, "internal", "i");
json_object_string_add(json_ocode, "igp", "i");
json_object_string_add(json_ocode, "egp", "e");
json_object_string_add(json_ocode, "incomplete", "?");
}
for (dest = bgp_table_top(bgp->rib[afi][safi]); dest;
dest = bgp_route_next(dest)) {
const struct prefix *dest_p = bgp_dest_get_prefix(dest);
if (prd && memcmp(dest_p->u.val, prd->val, 8) != 0)
continue;
table = bgp_dest_get_bgp_table_info(dest);
if (table == NULL)
continue;
/*
* Initialize variables for each RD
* All prefixes under an RD is aggregated within "json_routes"
*/
rd_header = 1;
memset(rd_str, 0, sizeof(rd_str));
json_routes = NULL;
for (rm = bgp_table_top(table); rm; rm = bgp_route_next(rm)) {
struct bgp_adj_out *adj = NULL;
struct attr *attr = NULL;
struct peer_af *paf = NULL;
RB_FOREACH (adj, bgp_adj_out_rb, &rm->adj_out)
SUBGRP_FOREACH_PEER (adj->subgroup, paf) {
if (paf->peer != peer || !adj->attr)
continue;
attr = adj->attr;
break;
}
if (bgp_dest_get_bgp_path_info(rm) == NULL)
continue;
if (!attr)
continue;
if (header) {
if (use_json) {
char buf[BUFSIZ] = {0};
json_object_int_add(
json, "bgpTableVersion", 0);
json_object_string_add(
json, "bgpLocalRouterId",
inet_ntop(AF_INET,
&bgp->router_id, buf,
sizeof(buf)));
json_object_int_add(
json,
"defaultLocPrf",
bgp->default_local_pref);
json_object_int_add(
json, "localAS",
bgp->as);
json_object_object_add(json,
"bgpStatusCodes",
json_scode);
json_object_object_add(json,
"bgpOriginCodes",
json_ocode);
} else {
vty_out(vty,
"BGP table version is 0, local router ID is %pI4\n",
&bgp->router_id);
vty_out(vty, "Default local pref %u, ",
bgp->default_local_pref);
vty_out(vty, "local AS %u\n", bgp->as);
vty_out(vty,
"Status codes: s suppressed, d damped, h history, * valid, > best, i - internal\n");
vty_out(vty,
"Origin codes: i - IGP, e - EGP, ? - incomplete\n\n");
vty_out(vty, V4_HEADER);
}
header = 0;
}
if (rd_header) {
uint16_t type;
struct rd_as rd_as = {0};
struct rd_ip rd_ip = {0};
#ifdef ENABLE_BGP_VNC
struct rd_vnc_eth rd_vnc_eth = {0};
#endif
const uint8_t *pnt;
pnt = dest_p->u.val;
/* Decode RD type. */
type = decode_rd_type(pnt);
/* Decode RD value. */
if (type == RD_TYPE_AS)
decode_rd_as(pnt + 2, &rd_as);
else if (type == RD_TYPE_AS4)
decode_rd_as4(pnt + 2, &rd_as);
else if (type == RD_TYPE_IP)
decode_rd_ip(pnt + 2, &rd_ip);
#ifdef ENABLE_BGP_VNC
else if (type == RD_TYPE_VNC_ETH)
decode_rd_vnc_eth(pnt, &rd_vnc_eth);
#endif
if (use_json) {
json_routes = json_object_new_object();
if (type == RD_TYPE_AS
|| type == RD_TYPE_AS4)
snprintf(rd_str, sizeof(rd_str),
"%u:%d", rd_as.as,
rd_as.val);
else if (type == RD_TYPE_IP)
snprintfrr(rd_str,
sizeof(rd_str),
"%pI4:%d", &rd_ip.ip,
rd_ip.val);
json_object_string_add(
json_routes,
"rd", rd_str);
} else {
vty_out(vty, "Route Distinguisher: ");
if (type == RD_TYPE_AS
|| type == RD_TYPE_AS4)
vty_out(vty, "%u:%d", rd_as.as,
rd_as.val);
else if (type == RD_TYPE_IP)
vty_out(vty, "%pI4:%d",
&rd_ip.ip, rd_ip.val);
#ifdef ENABLE_BGP_VNC
else if (type == RD_TYPE_VNC_ETH)
vty_out(vty,
"%u:%02x:%02x:%02x:%02x:%02x:%02x",
rd_vnc_eth.local_nve_id,
rd_vnc_eth.macaddr
.octet[0],
rd_vnc_eth.macaddr
.octet[1],
rd_vnc_eth.macaddr
.octet[2],
rd_vnc_eth.macaddr
.octet[3],
rd_vnc_eth.macaddr
.octet[4],
rd_vnc_eth.macaddr
.octet[5]);
#endif
vty_out(vty, "\n");
}
rd_header = 0;
}
route_vty_out_tmp(vty, bgp_dest_get_prefix(rm), attr,
safi, use_json, json_routes, false);
output_count++;
}
if (use_json && json_routes)
json_object_object_add(json_adv, rd_str, json_routes);
}
if (use_json) {
json_object_object_add(json, "advertisedRoutes", json_adv);
json_object_int_add(json,
"totalPrefixCounter", output_count);
vty_out(vty, "%s\n", json_object_to_json_string_ext(
json, JSON_C_TO_STRING_PRETTY));
json_object_free(json);
} else
vty_out(vty, "\nTotal number of prefixes %ld\n", output_count);
return CMD_SUCCESS;
}
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