[mirror_frr.git] / bgpd / bgp_flowspec_vty.c

/* BGP FlowSpec VTY
 * Copyright (C) 2018 6WIND
 *
 * 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 "bgpd/bgpd.h"
#include "bgpd/bgp_table.h"
#include "bgpd/bgp_attr.h"
#include "bgpd/bgp_ecommunity.h"
#include "bgpd/bgp_vty.h"
#include "bgpd/bgp_route.h"
#include "bgpd/bgp_aspath.h"
#include "bgpd/bgp_flowspec.h"
#include "bgpd/bgp_flowspec_util.h"
#include "bgpd/bgp_flowspec_private.h"
#include "bgpd/bgp_debug.h"
#include "bgpd/bgp_pbr.h"

/* Local Structures and variables declarations
 * This code block hosts the struct declared that host the flowspec rules
 * as well as some structure used to convert to stringx
 */

static const struct message bgp_flowspec_display_large[] = {
	{FLOWSPEC_DEST_PREFIX, "Destination Address"},
	{FLOWSPEC_SRC_PREFIX, "Source Address"},
	{FLOWSPEC_IP_PROTOCOL, "IP Protocol"},
	{FLOWSPEC_PORT, "Port"},
	{FLOWSPEC_DEST_PORT, "Destination Port"},
	{FLOWSPEC_SRC_PORT, "Source Port"},
	{FLOWSPEC_ICMP_TYPE, "ICMP Type"},
	{FLOWSPEC_ICMP_CODE, "ICMP Code"},
	{FLOWSPEC_TCP_FLAGS, "TCP Flags"},
	{FLOWSPEC_PKT_LEN, "Packet Length"},
	{FLOWSPEC_DSCP, "DSCP field"},
	{FLOWSPEC_FRAGMENT, "Packet Fragment"},
	{FLOWSPEC_FLOW_LABEL, "Packet Flow Label"},
	{0}
};

static const struct message bgp_flowspec_display_min[] = {
	{FLOWSPEC_DEST_PREFIX, "to"},
	{FLOWSPEC_SRC_PREFIX, "from"},
	{FLOWSPEC_IP_PROTOCOL, "proto"},
	{FLOWSPEC_PORT, "port"},
	{FLOWSPEC_DEST_PORT, "dstp"},
	{FLOWSPEC_SRC_PORT, "srcp"},
	{FLOWSPEC_ICMP_TYPE, "type"},
	{FLOWSPEC_ICMP_CODE, "code"},
	{FLOWSPEC_TCP_FLAGS, "tcp"},
	{FLOWSPEC_PKT_LEN, "pktlen"},
	{FLOWSPEC_DSCP, "dscp"},
	{FLOWSPEC_FRAGMENT, "pktfrag"},
	{FLOWSPEC_FLOW_LABEL, "flwlbl"},
	{0}
};

#define	FS_STRING_UPDATE(count, ptr, format, remaining_len) do {	\
		int _len_written;					\
									\
		if (((format) == NLRI_STRING_FORMAT_DEBUG) && (count)) {\
			_len_written = snprintf((ptr), (remaining_len),	\
						", ");			\
			(remaining_len) -= _len_written;		\
			(ptr) += _len_written;				\
		} else if (((format) == NLRI_STRING_FORMAT_MIN) 	\
			   && (count)) {				\
			_len_written = snprintf((ptr), (remaining_len),	\
						" ");			\
			(remaining_len) -= _len_written;		\
			(ptr) += _len_written;				\
		}							\
		count++;						\
	} while (0)

/* Parse FLOWSPEC NLRI
 * passed return_string string has assumed length
 * BGP_FLOWSPEC_STRING_DISPLAY_MAX
 */
void bgp_fs_nlri_get_string(unsigned char *nlri_content, size_t len,
			    char *return_string, int format,
			    json_object *json_path,
			    afi_t afi)
{
	uint32_t offset = 0;
	int type;
	int ret = 0, error = 0;
	char *ptr = return_string;
	char local_string[BGP_FLOWSPEC_STRING_DISPLAY_MAX];
	int count = 0;
	char extra[2] = "";
	char pre_extra[2] = "";
	const struct message *bgp_flowspec_display;
	enum bgp_flowspec_util_nlri_t type_util;
	int len_string = BGP_FLOWSPEC_STRING_DISPLAY_MAX;
	int len_written;

	if (format == NLRI_STRING_FORMAT_LARGE) {
		snprintf(pre_extra, sizeof(pre_extra), "\t");
		snprintf(extra, sizeof(extra), "\n");
		bgp_flowspec_display = bgp_flowspec_display_large;
	} else
		bgp_flowspec_display = bgp_flowspec_display_min;
	/* if needed. type_util can be set to other values */
	type_util = BGP_FLOWSPEC_RETURN_STRING;
	error = 0;
	while (offset < len-1 && error >= 0) {
		type = nlri_content[offset];
		offset++;
		switch (type) {
		case FLOWSPEC_DEST_PREFIX:
		case FLOWSPEC_SRC_PREFIX:
			ret = bgp_flowspec_ip_address(
						type_util,
						nlri_content+offset,
						len - offset,
						local_string, &error,
						afi, NULL);
			if (ret <= 0)
				break;
			if (json_path) {
				json_object_string_add(json_path,
				     lookup_msg(bgp_flowspec_display, type, ""),
				     local_string);
				break;
			}
			FS_STRING_UPDATE(count, ptr, format, len_string);
			len_written = snprintf(ptr, len_string, "%s%s %s%s",
					pre_extra,
					lookup_msg(bgp_flowspec_display,
						   type, ""),
					local_string, extra);
			len_string -= len_written;
			ptr += len_written;
			break;
		case FLOWSPEC_FLOW_LABEL:
		case FLOWSPEC_IP_PROTOCOL:
		case FLOWSPEC_PORT:
		case FLOWSPEC_DEST_PORT:
		case FLOWSPEC_SRC_PORT:
		case FLOWSPEC_ICMP_TYPE:
		case FLOWSPEC_ICMP_CODE:
			ret = bgp_flowspec_op_decode(type_util,
						     nlri_content+offset,
						     len - offset,
						     local_string, &error);
			if (ret <= 0)
				break;
			if (json_path) {
				json_object_string_add(json_path,
				     lookup_msg(bgp_flowspec_display, type, ""),
				     local_string);
				break;
			}
			FS_STRING_UPDATE(count, ptr, format, len_string);
			len_written = snprintf(ptr, len_string, "%s%s %s%s",
					pre_extra,
					lookup_msg(bgp_flowspec_display,
					type, ""),
				     local_string, extra);
			len_string -= len_written;
			ptr += len_written;
			break;
		case FLOWSPEC_TCP_FLAGS:
			ret = bgp_flowspec_bitmask_decode(
					      type_util,
					      nlri_content+offset,
					      len - offset,
					      local_string, &error);
			if (ret <= 0)
				break;
			if (json_path) {
				json_object_string_add(json_path,
				     lookup_msg(bgp_flowspec_display,
						type, ""),
				     local_string);
				break;
			}
			FS_STRING_UPDATE(count, ptr, format, len_string);
			len_written = snprintf(ptr, len_string, "%s%s %s%s",
					pre_extra,
					lookup_msg(bgp_flowspec_display,
						   type, ""),
					local_string, extra);
			len_string -= len_written;
			ptr += len_written;
			break;
		case FLOWSPEC_PKT_LEN:
		case FLOWSPEC_DSCP:
			ret = bgp_flowspec_op_decode(
						type_util,
						nlri_content + offset,
						len - offset, local_string,
						&error);
			if (ret <= 0)
				break;
			if (json_path) {
				json_object_string_add(json_path,
				    lookup_msg(bgp_flowspec_display, type, ""),
				    local_string);
				break;
			}
			FS_STRING_UPDATE(count, ptr, format, len_string);
			len_written = snprintf(ptr, len_string, "%s%s %s%s",
					pre_extra,
					lookup_msg(bgp_flowspec_display,
					type, ""),
				     local_string, extra);
			len_string -= len_written;
			ptr += len_written;
			break;
		case FLOWSPEC_FRAGMENT:
			ret = bgp_flowspec_bitmask_decode(
					      type_util,
					      nlri_content+offset,
					      len - offset,
					      local_string, &error);
			if (ret <= 0)
				break;
			if (json_path) {
				json_object_string_add(json_path,
				    lookup_msg(bgp_flowspec_display,
					       type, ""),
				    local_string);
				break;
			}
			FS_STRING_UPDATE(count, ptr, format, len_string);
			len_written = snprintf(ptr, len_string, "%s%s %s%s",
					pre_extra,
					lookup_msg(bgp_flowspec_display,
					type, ""),
					local_string, extra);
			len_string -= len_written;
			ptr += len_written;
			break;
		default:
			error = -1;
			break;
		}
		offset += ret;
	}
}

void route_vty_out_flowspec(struct vty *vty, const struct prefix *p,
			    struct bgp_path_info *path, int display,
			    json_object *json_paths)
{
	struct attr *attr;
	char return_string[BGP_FLOWSPEC_STRING_DISPLAY_MAX];
	char *s1 = NULL, *s2 = NULL;
	json_object *json_nlri_path = NULL;
	json_object *json_ecom_path = NULL;
	json_object *json_time_path = NULL;
	char timebuf[BGP_UPTIME_LEN];
	struct ecommunity *ipv6_ecomm = NULL;

	if (p == NULL || p->family != AF_FLOWSPEC)
		return;
	if (json_paths) {
		if (display == NLRI_STRING_FORMAT_JSON)
			json_nlri_path = json_object_new_object();
		else
			json_nlri_path = json_paths;
	}
	if (display == NLRI_STRING_FORMAT_LARGE && path)
		vty_out(vty, "BGP flowspec entry: (flags 0x%x)\n",
			path->flags);
	bgp_fs_nlri_get_string((unsigned char *)
			       p->u.prefix_flowspec.ptr,
			       p->u.prefix_flowspec.prefixlen,
			       return_string,
			       display,
			       json_nlri_path,
			       family2afi(p->u.prefix_flowspec
					  .family));
	if (display == NLRI_STRING_FORMAT_LARGE)
		vty_out(vty, "%s", return_string);
	else if (display == NLRI_STRING_FORMAT_DEBUG)
		vty_out(vty, "%s", return_string);
	else if (display == NLRI_STRING_FORMAT_MIN)
		vty_out(vty, " %-30s", return_string);
	else if (json_paths && display == NLRI_STRING_FORMAT_JSON)
		json_object_array_add(json_paths, json_nlri_path);
	if (!path)
		return;

	if (path->attr)
		ipv6_ecomm = bgp_attr_get_ipv6_ecommunity(path->attr);

	if (path->attr && (bgp_attr_get_ecommunity(path->attr) || ipv6_ecomm)) {
		/* Print attribute */
		attr = path->attr;
		if (bgp_attr_get_ecommunity(attr))
			s1 = ecommunity_ecom2str(bgp_attr_get_ecommunity(attr),
						 ECOMMUNITY_FORMAT_ROUTE_MAP,
						 0);
		if (ipv6_ecomm)
			s2 = ecommunity_ecom2str(
				ipv6_ecomm, ECOMMUNITY_FORMAT_ROUTE_MAP, 0);
		if (!s1 && !s2)
			return;
		if (display == NLRI_STRING_FORMAT_LARGE)
			vty_out(vty, "\t%s%s%s\n", s1 ? s1 : "",
				s2 && s1 ? " " : "", s2 ? s2 : "");
		else if (display == NLRI_STRING_FORMAT_MIN)
			vty_out(vty, "%s%s", s1 ? s1 : "", s2 ? s2 : "");
		else if (json_paths) {
			json_ecom_path = json_object_new_object();
			if (s1)
				json_object_string_add(json_ecom_path,
						       "ecomlist", s1);
			if (s2)
				json_object_string_add(json_ecom_path,
						       "ecom6list", s2);
			if (display == NLRI_STRING_FORMAT_JSON)
				json_object_array_add(json_paths,
						      json_ecom_path);
		}
		if (display == NLRI_STRING_FORMAT_LARGE) {
			char local_buff[INET6_ADDRSTRLEN];

			local_buff[0] = '\0';
			if (p->u.prefix_flowspec.family == AF_INET
			    && attr->nexthop.s_addr != INADDR_ANY)
				inet_ntop(AF_INET,
					  &attr->nexthop.s_addr,
					  local_buff,
					  INET6_ADDRSTRLEN);
			else if (p->u.prefix_flowspec.family == AF_INET6 &&
				 attr->mp_nexthop_len != 0 &&
				 attr->mp_nexthop_len != BGP_ATTR_NHLEN_IPV4 &&
				 attr->mp_nexthop_len != BGP_ATTR_NHLEN_VPNV4)
				inet_ntop(AF_INET6,
					  &attr->mp_nexthop_global,
					  local_buff,
					  INET6_ADDRSTRLEN);
			if (local_buff[0] != '\0')
				vty_out(vty, "\tNLRI NH %s\n",
					local_buff);
		}
		XFREE(MTYPE_ECOMMUNITY_STR, s1);
		XFREE(MTYPE_ECOMMUNITY_STR, s2);
	}
	peer_uptime(path->uptime, timebuf, BGP_UPTIME_LEN, 0, NULL);
	if (display == NLRI_STRING_FORMAT_LARGE) {
		vty_out(vty, "\treceived for %8s\n", timebuf);
	} else if (json_paths) {
		json_time_path = json_object_new_object();
		json_object_string_add(json_time_path,
				       "time", timebuf);
		if (display == NLRI_STRING_FORMAT_JSON)
			json_object_array_add(json_paths, json_time_path);
	}
	if (display == NLRI_STRING_FORMAT_LARGE) {
		struct bgp_path_info_extra *extra =
			bgp_path_info_extra_get(path);
		bool list_began = false;

		if (extra->bgp_fs_pbr && listcount(extra->bgp_fs_pbr)) {
			struct listnode *node;
			struct bgp_pbr_match_entry *bpme;
			struct bgp_pbr_match *bpm;
			struct list *list_bpm;

			list_bpm = list_new();
			vty_out(vty, "\tinstalled in PBR");
			for (ALL_LIST_ELEMENTS_RO(extra->bgp_fs_pbr,
						  node, bpme)) {
				bpm = bpme->backpointer;
				if (listnode_lookup(list_bpm, bpm))
					continue;
				listnode_add(list_bpm, bpm);
				if (!list_began) {
					vty_out(vty, " (");
					list_began = true;
				} else
					vty_out(vty, ", ");
				vty_out(vty, "%s", bpm->ipset_name);
			}
			list_delete(&list_bpm);
		}
		if (extra->bgp_fs_iprule && listcount(extra->bgp_fs_iprule)) {
			struct listnode *node;
			struct bgp_pbr_rule *bpr;

			if (!list_began)
				vty_out(vty, "\tinstalled in PBR");
			for (ALL_LIST_ELEMENTS_RO(extra->bgp_fs_iprule,
						  node, bpr)) {
				if (!bpr->action)
					continue;
				if (!list_began) {
					vty_out(vty, " (");
					list_began = true;
				} else
					vty_out(vty, ", ");
				vty_out(vty, "-ipv4-rule %d action lookup %u-",
					bpr->priority,
					bpr->action->table_id);
			}
		}
		if (list_began)
			vty_out(vty, ")\n");
		else
			vty_out(vty, "\tnot installed in PBR\n");
	}
}

int bgp_show_table_flowspec(struct vty *vty, struct bgp *bgp, afi_t afi,
			    struct bgp_table *table, enum bgp_show_type type,
			    void *output_arg, bool use_json, int is_last,
			    unsigned long *output_cum, unsigned long *total_cum)
{
	struct bgp_path_info *pi;
	struct bgp_dest *dest;
	unsigned long total_count = 0;
	json_object *json_paths = NULL;
	int display = NLRI_STRING_FORMAT_LARGE;

	if (type != bgp_show_type_detail)
		return CMD_SUCCESS;

	for (dest = bgp_table_top(table); dest; dest = bgp_route_next(dest)) {
		pi = bgp_dest_get_bgp_path_info(dest);
		if (pi == NULL)
			continue;
		if (use_json) {
			json_paths = json_object_new_array();
			display = NLRI_STRING_FORMAT_JSON;
		}
		for (; pi; pi = pi->next) {
			total_count++;
			route_vty_out_flowspec(vty, bgp_dest_get_prefix(dest),
					       pi, display, json_paths);
		}
		if (use_json) {
			vty_json(vty, json_paths);
			json_paths = NULL;
		}
	}
	if (total_count && !use_json)
		vty_out(vty,
			"\nDisplayed  %ld flowspec entries\n",
			total_count);
	return CMD_SUCCESS;
}

DEFUN (debug_bgp_flowspec,
       debug_bgp_flowspec_cmd,
       "debug bgp flowspec",
       DEBUG_STR
       BGP_STR
       "BGP allow flowspec debugging entries\n")
{
	if (vty->node == CONFIG_NODE)
		DEBUG_ON(flowspec, FLOWSPEC);
	else {
		TERM_DEBUG_ON(flowspec, FLOWSPEC);
		vty_out(vty, "BGP flowspec debugging is on\n");
	}
	return CMD_SUCCESS;
}

DEFUN (no_debug_bgp_flowspec,
       no_debug_bgp_flowspec_cmd,
       "no debug bgp flowspec",
       NO_STR
       DEBUG_STR
       BGP_STR
       "BGP allow flowspec debugging entries\n")
{
	if (vty->node == CONFIG_NODE)
		DEBUG_OFF(flowspec, FLOWSPEC);
	else {
		TERM_DEBUG_OFF(flowspec, FLOWSPEC);
		vty_out(vty, "BGP flowspec debugging is off\n");
	}
	return CMD_SUCCESS;
}

int bgp_fs_config_write_pbr(struct vty *vty, struct bgp *bgp,
			    afi_t afi, safi_t safi)
{
	struct bgp_pbr_interface *pbr_if;
	bool declare_node = false;
	struct bgp_pbr_config *bgp_pbr_cfg = bgp->bgp_pbr_cfg;
	struct bgp_pbr_interface_head *head;
	bool bgp_pbr_interface_any;

	if (!bgp_pbr_cfg || safi != SAFI_FLOWSPEC)
		return 0;
	if (afi == AFI_IP) {
		head = &(bgp_pbr_cfg->ifaces_by_name_ipv4);
		bgp_pbr_interface_any = bgp_pbr_cfg->pbr_interface_any_ipv4;
	} else if (afi == AFI_IP6) {
		head = &(bgp_pbr_cfg->ifaces_by_name_ipv6);
		bgp_pbr_interface_any = bgp_pbr_cfg->pbr_interface_any_ipv6;
	} else {
		return 0;
	}
	if (!RB_EMPTY(bgp_pbr_interface_head, head) ||
	     !bgp_pbr_interface_any)
		declare_node = true;
	RB_FOREACH (pbr_if, bgp_pbr_interface_head, head) {
		vty_out(vty, "  local-install %s\n", pbr_if->name);
	}
	return declare_node ? 1 : 0;
}

static int bgp_fs_local_install_interface(struct bgp *bgp,
					  const char *no, const char *ifname,
					  afi_t afi)
{
	struct bgp_pbr_interface *pbr_if;
	struct bgp_pbr_config *bgp_pbr_cfg = bgp->bgp_pbr_cfg;
	struct bgp_pbr_interface_head *head;
	bool *bgp_pbr_interface_any;

	if (!bgp_pbr_cfg)
		return CMD_SUCCESS;
	if (afi == AFI_IP) {
		head = &(bgp_pbr_cfg->ifaces_by_name_ipv4);
		bgp_pbr_interface_any = &(bgp_pbr_cfg->pbr_interface_any_ipv4);
	} else {
		head = &(bgp_pbr_cfg->ifaces_by_name_ipv6);
		bgp_pbr_interface_any = &(bgp_pbr_cfg->pbr_interface_any_ipv6);
	}
	if (no) {
		if (!ifname) {
			if (*bgp_pbr_interface_any) {
				*bgp_pbr_interface_any = false;
				/* remove all other interface list */
				bgp_pbr_reset(bgp, afi);
			}
			return CMD_SUCCESS;
		}
		pbr_if = bgp_pbr_interface_lookup(ifname, head);
		if (!pbr_if)
			return CMD_SUCCESS;
		RB_REMOVE(bgp_pbr_interface_head, head, pbr_if);
		return CMD_SUCCESS;
	}
	if (ifname) {
		pbr_if = bgp_pbr_interface_lookup(ifname, head);
		if (pbr_if)
			return CMD_SUCCESS;
		pbr_if = XCALLOC(MTYPE_TMP,
				 sizeof(struct bgp_pbr_interface));
		strlcpy(pbr_if->name, ifname, INTERFACE_NAMSIZ);
		RB_INSERT(bgp_pbr_interface_head, head, pbr_if);
		*bgp_pbr_interface_any = false;
	} else {
		/* set to default */
		if (!*bgp_pbr_interface_any) {
			/* remove all other interface list
			 */
			bgp_pbr_reset(bgp, afi);
			*bgp_pbr_interface_any = true;
		}
	}
	return CMD_SUCCESS;
}

DEFUN (bgp_fs_local_install_ifname,
	bgp_fs_local_install_ifname_cmd,
	"[no] local-install INTERFACE",
	NO_STR
	"Apply local policy routing\n"
	"Interface name\n")
{
	struct bgp *bgp = VTY_GET_CONTEXT(bgp);
	int idx = 0;
	const char *no = strmatch(argv[0]->text, "no") ? "no" : NULL;
	char *ifname = argv_find(argv, argc, "INTERFACE", &idx) ?
		argv[idx]->arg : NULL;

	return bgp_fs_local_install_interface(bgp, no, ifname,
					      bgp_node_afi(vty));
}

extern int bgp_flowspec_display_match_per_ip(afi_t afi, struct bgp_table *rib,
					     struct prefix *match,
					     int prefix_check, struct vty *vty,
					     bool use_json,
					     json_object *json_paths)
{
	struct bgp_dest *dest;
	const struct prefix *prefix;
	int display = 0;

	for (dest = bgp_table_top(rib); dest; dest = bgp_route_next(dest)) {
		prefix = bgp_dest_get_prefix(dest);

		if (prefix->family != AF_FLOWSPEC)
			continue;

		if (bgp_flowspec_contains_prefix(prefix, match, prefix_check)) {
			route_vty_out_flowspec(
				vty, prefix, bgp_dest_get_bgp_path_info(dest),
				use_json ? NLRI_STRING_FORMAT_JSON
					 : NLRI_STRING_FORMAT_LARGE,
				json_paths);
			display++;
		}
	}
	return display;
}

void bgp_flowspec_vty_init(void)
{
	install_element(ENABLE_NODE, &debug_bgp_flowspec_cmd);
	install_element(CONFIG_NODE, &debug_bgp_flowspec_cmd);
	install_element(ENABLE_NODE, &no_debug_bgp_flowspec_cmd);
	install_element(CONFIG_NODE, &no_debug_bgp_flowspec_cmd);
	install_element(BGP_FLOWSPECV4_NODE, &bgp_fs_local_install_ifname_cmd);
	install_element(BGP_FLOWSPECV6_NODE, &bgp_fs_local_install_ifname_cmd);
}
Commit	Line	Data
dba3c1d3 PG	1	/* BGP FlowSpec VTY
	2	* Copyright (C) 2018 6WIND
	3	*
	4	* FRRouting is free software; you can redistribute it and/or modify it
	5	* under the terms of the GNU General Public License as published by the
	6	* Free Software Foundation; either version 2, or (at your option) any
	7	* later version.
	8	*
	9	* FRRouting is distributed in the hope that it will be useful, but
	10	* WITHOUT ANY WARRANTY; without even the implied warranty of
	11	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	12	* General Public License for more details.
	13	*
	14	* You should have received a copy of the GNU General Public License along
	15	* with this program; see the file COPYING; if not, write to the Free Software
	16	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
	17	*/
	18
	19	#include <zebra.h>
	20	#include "command.h"
	21
	22	#include "bgpd/bgpd.h"
	23	#include "bgpd/bgp_table.h"
	24	#include "bgpd/bgp_attr.h"
	25	#include "bgpd/bgp_ecommunity.h"
	26	#include "bgpd/bgp_vty.h"
	27	#include "bgpd/bgp_route.h"
	28	#include "bgpd/bgp_aspath.h"
	29	#include "bgpd/bgp_flowspec.h"
	30	#include "bgpd/bgp_flowspec_util.h"
	31	#include "bgpd/bgp_flowspec_private.h"
268e1b9b	32	#include "bgpd/bgp_debug.h"
b588b642	33	#include "bgpd/bgp_pbr.h"
dba3c1d3 PG	34
	35	/* Local Structures and variables declarations
	36	* This code block hosts the struct declared that host the flowspec rules
	37	* as well as some structure used to convert to stringx
	38	*/
	39
	40	static const struct message bgp_flowspec_display_large[] = {
	41	{FLOWSPEC_DEST_PREFIX, "Destination Address"},
	42	{FLOWSPEC_SRC_PREFIX, "Source Address"},
	43	{FLOWSPEC_IP_PROTOCOL, "IP Protocol"},
	44	{FLOWSPEC_PORT, "Port"},
	45	{FLOWSPEC_DEST_PORT, "Destination Port"},
	46	{FLOWSPEC_SRC_PORT, "Source Port"},
	47	{FLOWSPEC_ICMP_TYPE, "ICMP Type"},
	48	{FLOWSPEC_ICMP_CODE, "ICMP Code"},
	49	{FLOWSPEC_TCP_FLAGS, "TCP Flags"},
	50	{FLOWSPEC_PKT_LEN, "Packet Length"},
	51	{FLOWSPEC_DSCP, "DSCP field"},
	52	{FLOWSPEC_FRAGMENT, "Packet Fragment"},
40881800	53	{FLOWSPEC_FLOW_LABEL, "Packet Flow Label"},
dba3c1d3 PG	54	{0}
	55	};
	56
	57	static const struct message bgp_flowspec_display_min[] = {
	58	{FLOWSPEC_DEST_PREFIX, "to"},
	59	{FLOWSPEC_SRC_PREFIX, "from"},
	60	{FLOWSPEC_IP_PROTOCOL, "proto"},
	61	{FLOWSPEC_PORT, "port"},
	62	{FLOWSPEC_DEST_PORT, "dstp"},
	63	{FLOWSPEC_SRC_PORT, "srcp"},
	64	{FLOWSPEC_ICMP_TYPE, "type"},
	65	{FLOWSPEC_ICMP_CODE, "code"},
01ffd28b	66	{FLOWSPEC_TCP_FLAGS, "tcp"},
dba3c1d3 PG	67	{FLOWSPEC_PKT_LEN, "pktlen"},
	68	{FLOWSPEC_DSCP, "dscp"},
	69	{FLOWSPEC_FRAGMENT, "pktfrag"},
40881800	70	{FLOWSPEC_FLOW_LABEL, "flwlbl"},
dba3c1d3 PG	71	{0}
	72	};
	73
362a06e3 PG	74	#define FS_STRING_UPDATE(count, ptr, format, remaining_len) do { \
	75	int _len_written; \
	76	\
	77	if (((format) == NLRI_STRING_FORMAT_DEBUG) && (count)) {\
	78	_len_written = snprintf((ptr), (remaining_len), \
	79	", "); \
	80	(remaining_len) -= _len_written; \
	81	(ptr) += _len_written; \
	82	} else if (((format) == NLRI_STRING_FORMAT_MIN) \
	83	&& (count)) { \
	84	_len_written = snprintf((ptr), (remaining_len), \
	85	" "); \
	86	(remaining_len) -= _len_written; \
	87	(ptr) += _len_written; \
	88	} \
	89	count++; \
dba3c1d3 PG	90	} while (0)
dba3c1d3 PG	91
362a06e3 PG	92	/* Parse FLOWSPEC NLRI
	93	* passed return_string string has assumed length
	94	* BGP_FLOWSPEC_STRING_DISPLAY_MAX
	95	*/
dba3c1d3	96	void bgp_fs_nlri_get_string(unsigned char *nlri_content, size_t len,
d33fc23b	97	char *return_string, int format,
1840384b PG	98	json_object *json_path,
1840384b PG	99	afi_t afi)
dba3c1d3 PG	100	{
	101	uint32_t offset = 0;
	102	int type;
	103	int ret = 0, error = 0;
	104	char *ptr = return_string;
	105	char local_string[BGP_FLOWSPEC_STRING_DISPLAY_MAX];
	106	int count = 0;
	107	char extra[2] = "";
	108	char pre_extra[2] = "";
	109	const struct message *bgp_flowspec_display;
d33fc23b	110	enum bgp_flowspec_util_nlri_t type_util;
362a06e3 PG	111	int len_string = BGP_FLOWSPEC_STRING_DISPLAY_MAX;
362a06e3 PG	112	int len_written;
dba3c1d3 PG	113
	114	if (format == NLRI_STRING_FORMAT_LARGE) {
	115	snprintf(pre_extra, sizeof(pre_extra), "\t");
	116	snprintf(extra, sizeof(extra), "\n");
	117	bgp_flowspec_display = bgp_flowspec_display_large;
	118	} else
	119	bgp_flowspec_display = bgp_flowspec_display_min;
d33fc23b PG	120	/* if needed. type_util can be set to other values */
d33fc23b PG	121	type_util = BGP_FLOWSPEC_RETURN_STRING;
dba3c1d3 PG	122	error = 0;
	123	while (offset < len-1 && error >= 0) {
	124	type = nlri_content[offset];
	125	offset++;
	126	switch (type) {
	127	case FLOWSPEC_DEST_PREFIX:
	128	case FLOWSPEC_SRC_PREFIX:
	129	ret = bgp_flowspec_ip_address(
d33fc23b	130	type_util,
dba3c1d3 PG	131	nlri_content+offset,
dba3c1d3 PG	132	len - offset,
1840384b	133	local_string, &error,
9cec4121	134	afi, NULL);
dba3c1d3 PG	135	if (ret <= 0)
dba3c1d3 PG	136	break;
d33fc23b PG	137	if (json_path) {
	138	json_object_string_add(json_path,
	139	lookup_msg(bgp_flowspec_display, type, ""),
	140	local_string);
	141	break;
	142	}
362a06e3 PG	143	FS_STRING_UPDATE(count, ptr, format, len_string);
	144	len_written = snprintf(ptr, len_string, "%s%s %s%s",
	145	pre_extra,
	146	lookup_msg(bgp_flowspec_display,
	147	type, ""),
	148	local_string, extra);
	149	len_string -= len_written;
	150	ptr += len_written;
dba3c1d3	151	break;
40881800	152	case FLOWSPEC_FLOW_LABEL:
dba3c1d3 PG	153	case FLOWSPEC_IP_PROTOCOL:
	154	case FLOWSPEC_PORT:
	155	case FLOWSPEC_DEST_PORT:
	156	case FLOWSPEC_SRC_PORT:
	157	case FLOWSPEC_ICMP_TYPE:
	158	case FLOWSPEC_ICMP_CODE:
d33fc23b	159	ret = bgp_flowspec_op_decode(type_util,
dba3c1d3 PG	160	nlri_content+offset,
	161	len - offset,
	162	local_string, &error);
	163	if (ret <= 0)
	164	break;
d33fc23b PG	165	if (json_path) {
	166	json_object_string_add(json_path,
	167	lookup_msg(bgp_flowspec_display, type, ""),
	168	local_string);
	169	break;
	170	}
362a06e3 PG	171	FS_STRING_UPDATE(count, ptr, format, len_string);
	172	len_written = snprintf(ptr, len_string, "%s%s %s%s",
	173	pre_extra,
	174	lookup_msg(bgp_flowspec_display,
	175	type, ""),
dba3c1d3	176	local_string, extra);
362a06e3 PG	177	len_string -= len_written;
362a06e3 PG	178	ptr += len_written;
dba3c1d3 PG	179	break;
dba3c1d3 PG	180	case FLOWSPEC_TCP_FLAGS:
588ec356	181	ret = bgp_flowspec_bitmask_decode(
d33fc23b	182	type_util,
dba3c1d3 PG	183	nlri_content+offset,
	184	len - offset,
	185	local_string, &error);
	186	if (ret <= 0)
	187	break;
d33fc23b PG	188	if (json_path) {
d33fc23b PG	189	json_object_string_add(json_path,
362a06e3 PG	190	lookup_msg(bgp_flowspec_display,
362a06e3 PG	191	type, ""),
d33fc23b PG	192	local_string);
	193	break;
	194	}
362a06e3 PG	195	FS_STRING_UPDATE(count, ptr, format, len_string);
	196	len_written = snprintf(ptr, len_string, "%s%s %s%s",
	197	pre_extra,
	198	lookup_msg(bgp_flowspec_display,
	199	type, ""),
	200	local_string, extra);
	201	len_string -= len_written;
	202	ptr += len_written;
dba3c1d3 PG	203	break;
	204	case FLOWSPEC_PKT_LEN:
	205	case FLOWSPEC_DSCP:
	206	ret = bgp_flowspec_op_decode(
d33fc23b	207	type_util,
dba3c1d3 PG	208	nlri_content + offset,
	209	len - offset, local_string,
	210	&error);
	211	if (ret <= 0)
	212	break;
d33fc23b PG	213	if (json_path) {
	214	json_object_string_add(json_path,
	215	lookup_msg(bgp_flowspec_display, type, ""),
	216	local_string);
	217	break;
	218	}
362a06e3 PG	219	FS_STRING_UPDATE(count, ptr, format, len_string);
	220	len_written = snprintf(ptr, len_string, "%s%s %s%s",
	221	pre_extra,
	222	lookup_msg(bgp_flowspec_display,
	223	type, ""),
dba3c1d3	224	local_string, extra);
362a06e3 PG	225	len_string -= len_written;
362a06e3 PG	226	ptr += len_written;
dba3c1d3 PG	227	break;
dba3c1d3 PG	228	case FLOWSPEC_FRAGMENT:
588ec356 PG	229	ret = bgp_flowspec_bitmask_decode(
	230	type_util,
	231	nlri_content+offset,
	232	len - offset,
	233	local_string, &error);
dba3c1d3 PG	234	if (ret <= 0)
dba3c1d3 PG	235	break;
d33fc23b PG	236	if (json_path) {
	237	json_object_string_add(json_path,
	238	lookup_msg(bgp_flowspec_display,
	239	type, ""),
	240	local_string);
	241	break;
	242	}
362a06e3 PG	243	FS_STRING_UPDATE(count, ptr, format, len_string);
	244	len_written = snprintf(ptr, len_string, "%s%s %s%s",
	245	pre_extra,
	246	lookup_msg(bgp_flowspec_display,
	247	type, ""),
	248	local_string, extra);
	249	len_string -= len_written;
	250	ptr += len_written;
dba3c1d3 PG	251	break;
	252	default:
	253	error = -1;
	254	break;
	255	}
	256	offset += ret;
	257	}
	258	}
	259
bd494ec5	260	void route_vty_out_flowspec(struct vty vty, const struct prefix p,
9b6d8fcf	261	struct bgp_path_info *path, int display,
4b7e6066	262	json_object *json_paths)
dba3c1d3 PG	263	{
	264	struct attr *attr;
	265	char return_string[BGP_FLOWSPEC_STRING_DISPLAY_MAX];
c6423c31	266	char s1 = NULL, s2 = NULL;
d33fc23b PG	267	json_object *json_nlri_path = NULL;
	268	json_object *json_ecom_path = NULL;
	269	json_object *json_time_path = NULL;
	270	char timebuf[BGP_UPTIME_LEN];
7de5a4d9	271	struct ecommunity *ipv6_ecomm = NULL;
dba3c1d3	272
c24ceb89 PG	273	if (p == NULL \|\| p->family != AF_FLOWSPEC)
	274	return;
	275	if (json_paths) {
	276	if (display == NLRI_STRING_FORMAT_JSON)
	277	json_nlri_path = json_object_new_object();
	278	else
	279	json_nlri_path = json_paths;
dba3c1d3	280	}
c24ceb89 PG	281	if (display == NLRI_STRING_FORMAT_LARGE && path)
	282	vty_out(vty, "BGP flowspec entry: (flags 0x%x)\n",
	283	path->flags);
	284	bgp_fs_nlri_get_string((unsigned char *)
	285	p->u.prefix_flowspec.ptr,
	286	p->u.prefix_flowspec.prefixlen,
	287	return_string,
	288	display,
	289	json_nlri_path,
	290	family2afi(p->u.prefix_flowspec
	291	.family));
	292	if (display == NLRI_STRING_FORMAT_LARGE)
	293	vty_out(vty, "%s", return_string);
	294	else if (display == NLRI_STRING_FORMAT_DEBUG)
	295	vty_out(vty, "%s", return_string);
	296	else if (display == NLRI_STRING_FORMAT_MIN)
	297	vty_out(vty, " %-30s", return_string);
	298	else if (json_paths && display == NLRI_STRING_FORMAT_JSON)
	299	json_object_array_add(json_paths, json_nlri_path);
9b6d8fcf	300	if (!path)
dba3c1d3	301	return;
d04ac434	302
7de5a4d9 DA	303	if (path->attr)
	304	ipv6_ecomm = bgp_attr_get_ipv6_ecommunity(path->attr);
	305
b53e67a3	306	if (path->attr && (bgp_attr_get_ecommunity(path->attr) \|\| ipv6_ecomm)) {
dba3c1d3	307	/* Print attribute */
9b6d8fcf	308	attr = path->attr;
b53e67a3 DA	309	if (bgp_attr_get_ecommunity(attr))
	310	s1 = ecommunity_ecom2str(bgp_attr_get_ecommunity(attr),
	311	ECOMMUNITY_FORMAT_ROUTE_MAP,
	312	0);
d04ac434 DS	313	if (ipv6_ecomm)
	314	s2 = ecommunity_ecom2str(
	315	ipv6_ecomm, ECOMMUNITY_FORMAT_ROUTE_MAP, 0);
c6423c31	316	if (!s1 && !s2)
dba3c1d3 PG	317	return;
dba3c1d3 PG	318	if (display == NLRI_STRING_FORMAT_LARGE)
c6423c31 PG	319	vty_out(vty, "\t%s%s%s\n", s1 ? s1 : "",
c6423c31 PG	320	s2 && s1 ? " " : "", s2 ? s2 : "");
d33fc23b	321	else if (display == NLRI_STRING_FORMAT_MIN)
c6423c31	322	vty_out(vty, "%s%s", s1 ? s1 : "", s2 ? s2 : "");
d33fc23b PG	323	else if (json_paths) {
d33fc23b PG	324	json_ecom_path = json_object_new_object();
c6423c31	325	if (s1)
9a659715	326	json_object_string_add(json_ecom_path,
c6423c31	327	"ecomlist", s1);
9a659715 PG	328	if (s2)
	329	json_object_string_add(json_ecom_path,
	330	"ecom6list", s2);
d33fc23b PG	331	if (display == NLRI_STRING_FORMAT_JSON)
	332	json_object_array_add(json_paths,
	333	json_ecom_path);
	334	}
f01e580f PG	335	if (display == NLRI_STRING_FORMAT_LARGE) {
	336	char local_buff[INET6_ADDRSTRLEN];
	337
	338	local_buff[0] = '\0';
3a6290bd DA	339	if (p->u.prefix_flowspec.family == AF_INET
3a6290bd DA	340	&& attr->nexthop.s_addr != INADDR_ANY)
f01e580f PG	341	inet_ntop(AF_INET,
	342	&attr->nexthop.s_addr,
	343	local_buff,
	344	INET6_ADDRSTRLEN);
	345	else if (p->u.prefix_flowspec.family == AF_INET6 &&
	346	attr->mp_nexthop_len != 0 &&
	347	attr->mp_nexthop_len != BGP_ATTR_NHLEN_IPV4 &&
	348	attr->mp_nexthop_len != BGP_ATTR_NHLEN_VPNV4)
	349	inet_ntop(AF_INET6,
	350	&attr->mp_nexthop_global,
	351	local_buff,
	352	INET6_ADDRSTRLEN);
	353	if (local_buff[0] != '\0')
	354	vty_out(vty, "\tNLRI NH %s\n",
	355	local_buff);
	356	}
c6423c31 PG	357	XFREE(MTYPE_ECOMMUNITY_STR, s1);
c6423c31 PG	358	XFREE(MTYPE_ECOMMUNITY_STR, s2);
dba3c1d3	359	}
9b6d8fcf	360	peer_uptime(path->uptime, timebuf, BGP_UPTIME_LEN, 0, NULL);
b588b642 PG	361	if (display == NLRI_STRING_FORMAT_LARGE) {
	362	vty_out(vty, "\treceived for %8s\n", timebuf);
	363	} else if (json_paths) {
d33fc23b PG	364	json_time_path = json_object_new_object();
	365	json_object_string_add(json_time_path,
	366	"time", timebuf);
	367	if (display == NLRI_STRING_FORMAT_JSON)
	368	json_object_array_add(json_paths, json_time_path);
dba3c1d3	369	}
b588b642	370	if (display == NLRI_STRING_FORMAT_LARGE) {
18ee8310	371	struct bgp_path_info_extra *extra =
9b6d8fcf	372	bgp_path_info_extra_get(path);
3e3708cb	373	bool list_began = false;
dba3c1d3	374
3e3708cb	375	if (extra->bgp_fs_pbr && listcount(extra->bgp_fs_pbr)) {
c26edcda	376	struct listnode *node;
b588b642 PG	377	struct bgp_pbr_match_entry *bpme;
b588b642 PG	378	struct bgp_pbr_match *bpm;
c26edcda	379	struct list *list_bpm;
b588b642	380
c26edcda	381	list_bpm = list_new();
ce3c0614	382	vty_out(vty, "\tinstalled in PBR");
c26edcda PG	383	for (ALL_LIST_ELEMENTS_RO(extra->bgp_fs_pbr,
	384	node, bpme)) {
	385	bpm = bpme->backpointer;
	386	if (listnode_lookup(list_bpm, bpm))
	387	continue;
	388	listnode_add(list_bpm, bpm);
503d1ec6	389	if (!list_began) {
c26edcda	390	vty_out(vty, " (");
503d1ec6 PG	391	list_began = true;
503d1ec6 PG	392	} else
c26edcda PG	393	vty_out(vty, ", ");
c26edcda PG	394	vty_out(vty, "%s", bpm->ipset_name);
c26edcda	395	}
3e3708cb PG	396	list_delete(&list_bpm);
	397	}
	398	if (extra->bgp_fs_iprule && listcount(extra->bgp_fs_iprule)) {
	399	struct listnode *node;
	400	struct bgp_pbr_rule *bpr;
	401
	402	if (!list_began)
	403	vty_out(vty, "\tinstalled in PBR");
ce3c0614 PG	404	for (ALL_LIST_ELEMENTS_RO(extra->bgp_fs_iprule,
	405	node, bpr)) {
	406	if (!bpr->action)
	407	continue;
	408	if (!list_began) {
	409	vty_out(vty, " (");
	410	list_began = true;
	411	} else
	412	vty_out(vty, ", ");
	413	vty_out(vty, "-ipv4-rule %d action lookup %u-",
	414	bpr->priority,
	415	bpr->action->table_id);
	416	}
3e3708cb	417	}
026b0e3b PG	418	if (list_began)
	419	vty_out(vty, ")\n");
	420	else
b588b642 PG	421	vty_out(vty, "\tnot installed in PBR\n");
b588b642 PG	422	}
dba3c1d3 PG	423	}
	424
	425	int bgp_show_table_flowspec(struct vty vty, struct bgp bgp, afi_t afi,
	426	struct bgp_table *table, enum bgp_show_type type,
088f1098 DS	427	void *output_arg, bool use_json, int is_last,
088f1098 DS	428	unsigned long output_cum, unsigned long total_cum)
dba3c1d3	429	{
40381db7	430	struct bgp_path_info *pi;
9bcb3eef	431	struct bgp_dest *dest;
dba3c1d3 PG	432	unsigned long total_count = 0;
dba3c1d3 PG	433	json_object *json_paths = NULL;
d33fc23b	434	int display = NLRI_STRING_FORMAT_LARGE;
dba3c1d3 PG	435
	436	if (type != bgp_show_type_detail)
	437	return CMD_SUCCESS;
	438
9bcb3eef DS	439	for (dest = bgp_table_top(table); dest; dest = bgp_route_next(dest)) {
9bcb3eef DS	440	pi = bgp_dest_get_bgp_path_info(dest);
6f94b685	441	if (pi == NULL)
dba3c1d3	442	continue;
d33fc23b PG	443	if (use_json) {
	444	json_paths = json_object_new_array();
	445	display = NLRI_STRING_FORMAT_JSON;
	446	}
6f94b685	447	for (; pi; pi = pi->next) {
dba3c1d3	448	total_count++;
9bcb3eef DS	449	route_vty_out_flowspec(vty, bgp_dest_get_prefix(dest),
9bcb3eef DS	450	pi, display, json_paths);
dba3c1d3	451	}
d33fc23b	452	if (use_json) {
75eeda93	453	vty_json(vty, json_paths);
d33fc23b PG	454	json_paths = NULL;
d33fc23b PG	455	}
dba3c1d3	456	}
d33fc23b	457	if (total_count && !use_json)
dba3c1d3 PG	458	vty_out(vty,
	459	"\nDisplayed %ld flowspec entries\n",
	460	total_count);
	461	return CMD_SUCCESS;
	462	}
	463
268e1b9b PG	464	DEFUN (debug_bgp_flowspec,
	465	debug_bgp_flowspec_cmd,
	466	"debug bgp flowspec",
	467	DEBUG_STR
	468	BGP_STR
	469	"BGP allow flowspec debugging entries\n")
	470	{
	471	if (vty->node == CONFIG_NODE)
	472	DEBUG_ON(flowspec, FLOWSPEC);
	473	else {
	474	TERM_DEBUG_ON(flowspec, FLOWSPEC);
	475	vty_out(vty, "BGP flowspec debugging is on\n");
	476	}
	477	return CMD_SUCCESS;
	478	}
	479
	480	DEFUN (no_debug_bgp_flowspec,
	481	no_debug_bgp_flowspec_cmd,
	482	"no debug bgp flowspec",
	483	NO_STR
	484	DEBUG_STR
	485	BGP_STR
	486	"BGP allow flowspec debugging entries\n")
	487	{
	488	if (vty->node == CONFIG_NODE)
	489	DEBUG_OFF(flowspec, FLOWSPEC);
	490	else {
	491	TERM_DEBUG_OFF(flowspec, FLOWSPEC);
	492	vty_out(vty, "BGP flowspec debugging is off\n");
	493	}
	494	return CMD_SUCCESS;
	495	}
	496
4762c213 PG	497	int bgp_fs_config_write_pbr(struct vty vty, struct bgp bgp,
	498	afi_t afi, safi_t safi)
	499	{
	500	struct bgp_pbr_interface *pbr_if;
	501	bool declare_node = false;
	502	struct bgp_pbr_config *bgp_pbr_cfg = bgp->bgp_pbr_cfg;
	503	struct bgp_pbr_interface_head *head;
	504	bool bgp_pbr_interface_any;
	505
8f242187	506	if (!bgp_pbr_cfg \|\| safi != SAFI_FLOWSPEC)
4762c213	507	return 0;
8f242187 PG	508	if (afi == AFI_IP) {
	509	head = &(bgp_pbr_cfg->ifaces_by_name_ipv4);
	510	bgp_pbr_interface_any = bgp_pbr_cfg->pbr_interface_any_ipv4;
	511	} else if (afi == AFI_IP6) {
	512	head = &(bgp_pbr_cfg->ifaces_by_name_ipv6);
	513	bgp_pbr_interface_any = bgp_pbr_cfg->pbr_interface_any_ipv6;
	514	} else {
	515	return 0;
	516	}
4762c213 PG	517	if (!RB_EMPTY(bgp_pbr_interface_head, head) \|\|
	518	!bgp_pbr_interface_any)
	519	declare_node = true;
	520	RB_FOREACH (pbr_if, bgp_pbr_interface_head, head) {
	521	vty_out(vty, " local-install %s\n", pbr_if->name);
	522	}
4762c213 PG	523	return declare_node ? 1 : 0;
	524	}
	525
	526	static int bgp_fs_local_install_interface(struct bgp *bgp,
8f242187 PG	527	const char no, const char ifname,
8f242187 PG	528	afi_t afi)
4762c213 PG	529	{
	530	struct bgp_pbr_interface *pbr_if;
	531	struct bgp_pbr_config *bgp_pbr_cfg = bgp->bgp_pbr_cfg;
	532	struct bgp_pbr_interface_head *head;
	533	bool *bgp_pbr_interface_any;
	534
	535	if (!bgp_pbr_cfg)
	536	return CMD_SUCCESS;
8f242187 PG	537	if (afi == AFI_IP) {
	538	head = &(bgp_pbr_cfg->ifaces_by_name_ipv4);
	539	bgp_pbr_interface_any = &(bgp_pbr_cfg->pbr_interface_any_ipv4);
	540	} else {
	541	head = &(bgp_pbr_cfg->ifaces_by_name_ipv6);
	542	bgp_pbr_interface_any = &(bgp_pbr_cfg->pbr_interface_any_ipv6);
	543	}
4762c213 PG	544	if (no) {
	545	if (!ifname) {
	546	if (*bgp_pbr_interface_any) {
	547	*bgp_pbr_interface_any = false;
	548	/* remove all other interface list */
8f242187	549	bgp_pbr_reset(bgp, afi);
4762c213 PG	550	}
	551	return CMD_SUCCESS;
	552	}
	553	pbr_if = bgp_pbr_interface_lookup(ifname, head);
	554	if (!pbr_if)
	555	return CMD_SUCCESS;
	556	RB_REMOVE(bgp_pbr_interface_head, head, pbr_if);
	557	return CMD_SUCCESS;
	558	}
	559	if (ifname) {
	560	pbr_if = bgp_pbr_interface_lookup(ifname, head);
	561	if (pbr_if)
	562	return CMD_SUCCESS;
	563	pbr_if = XCALLOC(MTYPE_TMP,
	564	sizeof(struct bgp_pbr_interface));
	565	strlcpy(pbr_if->name, ifname, INTERFACE_NAMSIZ);
	566	RB_INSERT(bgp_pbr_interface_head, head, pbr_if);
	567	*bgp_pbr_interface_any = false;
	568	} else {
	569	/* set to default */
	570	if (!*bgp_pbr_interface_any) {
	571	/* remove all other interface list
	572	*/
8f242187	573	bgp_pbr_reset(bgp, afi);
4762c213 PG	574	*bgp_pbr_interface_any = true;
	575	}
	576	}
	577	return CMD_SUCCESS;
	578	}
	579
	580	DEFUN (bgp_fs_local_install_ifname,
	581	bgp_fs_local_install_ifname_cmd,
	582	"[no] local-install INTERFACE",
	583	NO_STR
	584	"Apply local policy routing\n"
	585	"Interface name\n")
	586	{
	587	struct bgp *bgp = VTY_GET_CONTEXT(bgp);
	588	int idx = 0;
36de6e0e	589	const char *no = strmatch(argv[0]->text, "no") ? "no" : NULL;
4762c213 PG	590	char *ifname = argv_find(argv, argc, "INTERFACE", &idx) ?
	591	argv[idx]->arg : NULL;
	592
8f242187 PG	593	return bgp_fs_local_install_interface(bgp, no, ifname,
8f242187 PG	594	bgp_node_afi(vty));
4762c213 PG	595	}
4762c213 PG	596
088f1098 DS	597	extern int bgp_flowspec_display_match_per_ip(afi_t afi, struct bgp_table *rib,
	598	struct prefix *match,
	599	int prefix_check, struct vty *vty,
	600	bool use_json,
	601	json_object *json_paths)
63a0b7a9	602	{
9bcb3eef	603	struct bgp_dest *dest;
b54892e0	604	const struct prefix *prefix;
63a0b7a9 PG	605	int display = 0;
63a0b7a9 PG	606
9bcb3eef DS	607	for (dest = bgp_table_top(rib); dest; dest = bgp_route_next(dest)) {
9bcb3eef DS	608	prefix = bgp_dest_get_prefix(dest);
63a0b7a9 PG	609
	610	if (prefix->family != AF_FLOWSPEC)
	611	continue;
	612
	613	if (bgp_flowspec_contains_prefix(prefix, match, prefix_check)) {
6f94b685	614	route_vty_out_flowspec(
9bcb3eef	615	vty, prefix, bgp_dest_get_bgp_path_info(dest),
6f94b685 DS	616	use_json ? NLRI_STRING_FORMAT_JSON
	617	: NLRI_STRING_FORMAT_LARGE,
	618	json_paths);
63a0b7a9 PG	619	display++;
	620	}
	621	}
	622	return display;
	623	}
	624
dba3c1d3 PG	625	void bgp_flowspec_vty_init(void)
dba3c1d3 PG	626	{
268e1b9b PG	627	install_element(ENABLE_NODE, &debug_bgp_flowspec_cmd);
	628	install_element(CONFIG_NODE, &debug_bgp_flowspec_cmd);
	629	install_element(ENABLE_NODE, &no_debug_bgp_flowspec_cmd);
	630	install_element(CONFIG_NODE, &no_debug_bgp_flowspec_cmd);
4762c213	631	install_element(BGP_FLOWSPECV4_NODE, &bgp_fs_local_install_ifname_cmd);
8f242187	632	install_element(BGP_FLOWSPECV6_NODE, &bgp_fs_local_install_ifname_cmd);
dba3c1d3	633	}