[mirror_frr.git] / bgpd / bgp_vpn.c

/* 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) {
					json_object_int_add(
						json, "bgpTableVersion", 0);
					json_object_string_addf(
						json, "bgpLocalRouterId",
						"%pI4", &bgp->router_id);
					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, rm, 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;
}
Commit	Line	Data
784d3a42	1	/* VPN Related functions
896014f4 DL	2	* Copyright (C) 2017 6WIND
	3	*
	4	* This file is part of FRRouting
	5	*
	6	* FRRouting is free software; you can redistribute it and/or modify it
	7	* under the terms of the GNU General Public License as published by the
	8	* Free Software Foundation; either version 2, or (at your option) any
	9	* later version.
	10	*
	11	* FRRouting is distributed in the hope that it will be useful, but
	12	* WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	14	* General Public License for more details.
	15	*
	16	* You should have received a copy of the GNU General Public License along
	17	* with this program; see the file COPYING; if not, write to the Free Software
	18	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
	19	*/
784d3a42 PG	20
	21	#include <zebra.h>
	22	#include "command.h"
	23	#include "prefix.h"
	24	#include "lib/json.h"
23d0a753	25	#include "lib/printfrr.h"
784d3a42 PG	26
	27	#include "bgpd/bgpd.h"
	28	#include "bgpd/bgp_route.h"
	29	#include "bgpd/bgp_table.h"
	30	#include "bgpd/bgp_attr.h"
	31	#include "bgpd/bgp_mplsvpn.h"
	32	#include "bgpd/bgp_vpn.h"
dc387b0f	33	#include "bgpd/bgp_updgrp.h"
784d3a42	34
d62a17ae	35	int show_adj_route_vpn(struct vty vty, struct peer peer,
d62a17ae	36	struct prefix_rd *prd, afi_t afi, safi_t safi,
9f049418	37	bool use_json)
784d3a42	38	{
d62a17ae	39	struct bgp *bgp;
d62a17ae	40	struct bgp_table *table;
9bcb3eef DS	41	struct bgp_dest *dest;
9bcb3eef DS	42	struct bgp_dest *rm;
d62a17ae	43	int rd_header;
	44	int header = 1;
	45	json_object *json = NULL;
	46	json_object *json_scode = NULL;
	47	json_object *json_ocode = NULL;
dc387b0f	48	json_object *json_adv = NULL;
d62a17ae	49	json_object *json_routes = NULL;
dc387b0f LK	50	char rd_str[BUFSIZ];
dc387b0f LK	51	unsigned long output_count = 0;
d62a17ae	52
	53	bgp = bgp_get_default();
	54	if (bgp == NULL) {
	55	if (!use_json)
	56	vty_out(vty, "No BGP process is configured\n");
16307668 RW	57	else
16307668 RW	58	vty_out(vty, "{}\n");
d62a17ae	59	return CMD_WARNING;
	60	}
	61
	62	if (use_json) {
	63	json_scode = json_object_new_object();
	64	json_ocode = json_object_new_object();
d62a17ae	65	json = json_object_new_object();
dc387b0f	66	json_adv = json_object_new_object();
d62a17ae	67
	68	json_object_string_add(json_scode, "suppressed", "s");
	69	json_object_string_add(json_scode, "damped", "d");
	70	json_object_string_add(json_scode, "history", "h");
	71	json_object_string_add(json_scode, "valid", "*");
	72	json_object_string_add(json_scode, "best", ">");
	73	json_object_string_add(json_scode, "internal", "i");
	74
	75	json_object_string_add(json_ocode, "igp", "i");
	76	json_object_string_add(json_ocode, "egp", "e");
	77	json_object_string_add(json_ocode, "incomplete", "?");
	78	}
	79
9bcb3eef DS	80	for (dest = bgp_table_top(bgp->rib[afi][safi]); dest;
	81	dest = bgp_route_next(dest)) {
	82	const struct prefix *dest_p = bgp_dest_get_prefix(dest);
b54892e0	83
9bcb3eef	84	if (prd && memcmp(dest_p->u.val, prd->val, 8) != 0)
d62a17ae	85	continue;
d62a17ae	86
9bcb3eef	87	table = bgp_dest_get_bgp_table_info(dest);
c4936a1a DS	88	if (table == NULL)
c4936a1a DS	89	continue;
d62a17ae	90
f5cfc290 LK	91	/*
	92	* Initialize variables for each RD
	93	* All prefixes under an RD is aggregated within "json_routes"
	94	*/
c4936a1a	95	rd_header = 1;
dc387b0f	96	memset(rd_str, 0, sizeof(rd_str));
f5cfc290	97	json_routes = NULL;
c4936a1a DS	98
c4936a1a DS	99	for (rm = bgp_table_top(table); rm; rm = bgp_route_next(rm)) {
dc387b0f LK	100	struct bgp_adj_out *adj = NULL;
	101	struct attr *attr = NULL;
	102	struct peer_af *paf = NULL;
	103
	104	RB_FOREACH (adj, bgp_adj_out_rb, &rm->adj_out)
	105	SUBGRP_FOREACH_PEER (adj->subgroup, paf) {
	106	if (paf->peer != peer \|\| !adj->attr)
	107	continue;
	108
	109	attr = adj->attr;
	110	break;
	111	}
	112
9bcb3eef	113	if (bgp_dest_get_bgp_path_info(rm) == NULL)
c4936a1a DS	114	continue;
c4936a1a DS	115
10d5be75 LK	116	if (!attr)
	117	continue;
	118
c4936a1a DS	119	if (header) {
	120	if (use_json) {
	121	json_object_int_add(
	122	json, "bgpTableVersion", 0);
c949c771	123	json_object_string_addf(
c4936a1a	124	json, "bgpLocalRouterId",
c949c771	125	"%pI4", &bgp->router_id);
dc387b0f LK	126	json_object_int_add(
	127	json,
	128	"defaultLocPrf",
	129	bgp->default_local_pref);
	130	json_object_int_add(
	131	json, "localAS",
	132	bgp->as);
c4936a1a DS	133	json_object_object_add(json,
	134	"bgpStatusCodes",
	135	json_scode);
	136	json_object_object_add(json,
	137	"bgpOriginCodes",
	138	json_ocode);
	139	} else {
	140	vty_out(vty,
23d0a753 DA	141	"BGP table version is 0, local router ID is %pI4\n",
23d0a753 DA	142	&bgp->router_id);
dc387b0f LK	143	vty_out(vty, "Default local pref %u, ",
	144	bgp->default_local_pref);
	145	vty_out(vty, "local AS %u\n", bgp->as);
c4936a1a DS	146	vty_out(vty,
	147	"Status codes: s suppressed, d damped, h history, * valid, > best, i - internal\n");
	148	vty_out(vty,
	149	"Origin codes: i - IGP, e - EGP, ? - incomplete\n\n");
	150	vty_out(vty, V4_HEADER);
	151	}
	152	header = 0;
	153	}
d62a17ae	154
c4936a1a DS	155	if (rd_header) {
	156	uint16_t type;
	157	struct rd_as rd_as = {0};
	158	struct rd_ip rd_ip = {0};
49e5a4a0	159	#ifdef ENABLE_BGP_VNC
c4936a1a	160	struct rd_vnc_eth rd_vnc_eth = {0};
784d3a42	161	#endif
b54892e0	162	const uint8_t *pnt;
c4936a1a	163
9bcb3eef	164	pnt = dest_p->u.val;
c4936a1a DS	165
	166	/* Decode RD type. */
	167	type = decode_rd_type(pnt);
	168	/* Decode RD value. */
	169	if (type == RD_TYPE_AS)
	170	decode_rd_as(pnt + 2, &rd_as);
	171	else if (type == RD_TYPE_AS4)
	172	decode_rd_as4(pnt + 2, &rd_as);
	173	else if (type == RD_TYPE_IP)
	174	decode_rd_ip(pnt + 2, &rd_ip);
49e5a4a0	175	#ifdef ENABLE_BGP_VNC
c4936a1a DS	176	else if (type == RD_TYPE_VNC_ETH)
c4936a1a DS	177	decode_rd_vnc_eth(pnt, &rd_vnc_eth);
784d3a42	178	#endif
c4936a1a	179	if (use_json) {
dc387b0f LK	180	json_routes = json_object_new_object();
dc387b0f LK	181
c4936a1a DS	182	if (type == RD_TYPE_AS
c4936a1a DS	183	\|\| type == RD_TYPE_AS4)
772270f3 QY	184	snprintf(rd_str, sizeof(rd_str),
	185	"%u:%d", rd_as.as,
	186	rd_as.val);
c4936a1a	187	else if (type == RD_TYPE_IP)
23d0a753 DA	188	snprintfrr(rd_str,
	189	sizeof(rd_str),
	190	"%pI4:%d", &rd_ip.ip,
	191	rd_ip.val);
c4936a1a DS	192	json_object_string_add(
c4936a1a DS	193	json_routes,
dc387b0f	194	"rd", rd_str);
c4936a1a DS	195	} else {
	196	vty_out(vty, "Route Distinguisher: ");
	197
	198	if (type == RD_TYPE_AS
	199	\|\| type == RD_TYPE_AS4)
	200	vty_out(vty, "%u:%d", rd_as.as,
	201	rd_as.val);
	202	else if (type == RD_TYPE_IP)
23d0a753 DA	203	vty_out(vty, "%pI4:%d",
23d0a753 DA	204	&rd_ip.ip, rd_ip.val);
49e5a4a0	205	#ifdef ENABLE_BGP_VNC
c4936a1a DS	206	else if (type == RD_TYPE_VNC_ETH)
	207	vty_out(vty,
	208	"%u:%02x:%02x:%02x:%02x:%02x:%02x",
	209	rd_vnc_eth.local_nve_id,
	210	rd_vnc_eth.macaddr
	211	.octet[0],
	212	rd_vnc_eth.macaddr
	213	.octet[1],
	214	rd_vnc_eth.macaddr
	215	.octet[2],
	216	rd_vnc_eth.macaddr
	217	.octet[3],
	218	rd_vnc_eth.macaddr
	219	.octet[4],
	220	rd_vnc_eth.macaddr
	221	.octet[5]);
784d3a42 PG	222	#endif
784d3a42 PG	223
c4936a1a	224	vty_out(vty, "\n");
d62a17ae	225	}
c4936a1a DS	226	rd_header = 0;
c4936a1a DS	227	}
7d3cae70 DA	228	route_vty_out_tmp(vty, rm, bgp_dest_get_prefix(rm),
	229	attr, safi, use_json, json_routes,
	230	false);
dc387b0f	231	output_count++;
d62a17ae	232	}
dc387b0f	233
f5cfc290	234	if (use_json && json_routes)
dc387b0f	235	json_object_object_add(json_adv, rd_str, json_routes);
d62a17ae	236	}
dc387b0f	237
d62a17ae	238	if (use_json) {
dc387b0f LK	239	json_object_object_add(json, "advertisedRoutes", json_adv);
	240	json_object_int_add(json,
	241	"totalPrefixCounter", output_count);
9d303b37 DL	242	vty_out(vty, "%s\n", json_object_to_json_string_ext(
9d303b37 DL	243	json, JSON_C_TO_STRING_PRETTY));
d62a17ae	244	json_object_free(json);
dc387b0f LK	245	} else
	246	vty_out(vty, "\nTotal number of prefixes %ld\n", output_count);
	247
d62a17ae	248	return CMD_SUCCESS;
784d3a42	249	}