+// SPDX-License-Identifier: GPL-2.0-or-later
/* Zebra next hop tracking code
* Copyright (C) 2013 Cumulus Networks, Inc.
- *
- * 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>
#include "log.h"
#include "sockunion.h"
#include "linklist.h"
-#include "thread.h"
+#include "frrevent.h"
#include "workqueue.h"
#include "prefix.h"
#include "routemap.h"
static void copy_state(struct rnh *rnh, const struct route_entry *re,
struct route_node *rn);
static bool compare_state(struct route_entry *r1, struct route_entry *r2);
-static void print_rnh(struct route_node *rn, struct vty *vty);
+static void print_rnh(struct route_node *rn, struct vty *vty,
+ json_object *json);
static int zebra_client_cleanup_rnh(struct zserv *client);
void zebra_rnh_init(void)
*nht_exists = false;
- zvrf = vrf_info_lookup(vrf_id);
+ zvrf = zebra_vrf_lookup_by_id(vrf_id);
if (!zvrf)
return;
}
void zebra_print_rnh_table(vrf_id_t vrfid, afi_t afi, safi_t safi,
- struct vty *vty, const struct prefix *p)
+ struct vty *vty, const struct prefix *p,
+ json_object *json)
{
struct route_table *table;
struct route_node *rn;
continue;
if (rn->info)
- print_rnh(rn, vty);
+ print_rnh(rn, vty, json);
}
}
return -1;
}
-static void print_nh(struct nexthop *nexthop, struct vty *vty)
+
+/*
+ * Render a nexthop into a json object; the caller allocates and owns
+ * the json object memory.
+ */
+void show_nexthop_json_helper(json_object *json_nexthop,
+ const struct nexthop *nexthop,
+ const struct route_entry *re)
{
- char buf[BUFSIZ];
- struct zebra_ns *zns = zebra_ns_lookup(nexthop->vrf_id);
+ json_object *json_labels = NULL;
+ json_object *json_backups = NULL;
+ json_object *json_seg6local = NULL;
+ json_object *json_seg6 = NULL;
+ int i;
+
+ json_object_int_add(json_nexthop, "flags", nexthop->flags);
+
+ if (CHECK_FLAG(nexthop->flags, NEXTHOP_FLAG_DUPLICATE))
+ json_object_boolean_true_add(json_nexthop, "duplicate");
+
+ if (CHECK_FLAG(nexthop->flags, NEXTHOP_FLAG_FIB))
+ json_object_boolean_true_add(json_nexthop, "fib");
+
+ switch (nexthop->type) {
+ case NEXTHOP_TYPE_IPV4:
+ case NEXTHOP_TYPE_IPV4_IFINDEX:
+ json_object_string_addf(json_nexthop, "ip", "%pI4",
+ &nexthop->gate.ipv4);
+ json_object_string_add(json_nexthop, "afi", "ipv4");
+
+ if (nexthop->ifindex) {
+ json_object_int_add(json_nexthop, "interfaceIndex",
+ nexthop->ifindex);
+ json_object_string_add(json_nexthop, "interfaceName",
+ ifindex2ifname(nexthop->ifindex,
+ nexthop->vrf_id));
+ }
+ break;
+ case NEXTHOP_TYPE_IPV6:
+ case NEXTHOP_TYPE_IPV6_IFINDEX:
+ json_object_string_addf(json_nexthop, "ip", "%pI6",
+ &nexthop->gate.ipv6);
+ json_object_string_add(json_nexthop, "afi", "ipv6");
+
+ if (nexthop->ifindex) {
+ json_object_int_add(json_nexthop, "interfaceIndex",
+ nexthop->ifindex);
+ json_object_string_add(json_nexthop, "interfaceName",
+ ifindex2ifname(nexthop->ifindex,
+ nexthop->vrf_id));
+ }
+ break;
+
+ case NEXTHOP_TYPE_IFINDEX:
+ json_object_boolean_true_add(json_nexthop, "directlyConnected");
+ json_object_int_add(json_nexthop, "interfaceIndex",
+ nexthop->ifindex);
+ json_object_string_add(
+ json_nexthop, "interfaceName",
+ ifindex2ifname(nexthop->ifindex, nexthop->vrf_id));
+ break;
+ case NEXTHOP_TYPE_BLACKHOLE:
+ json_object_boolean_true_add(json_nexthop, "unreachable");
+ switch (nexthop->bh_type) {
+ case BLACKHOLE_REJECT:
+ json_object_boolean_true_add(json_nexthop, "reject");
+ break;
+ case BLACKHOLE_ADMINPROHIB:
+ json_object_boolean_true_add(json_nexthop,
+ "adminProhibited");
+ break;
+ case BLACKHOLE_NULL:
+ json_object_boolean_true_add(json_nexthop, "blackhole");
+ break;
+ case BLACKHOLE_UNSPEC:
+ break;
+ }
+ break;
+ }
+
+ /* This nexthop is a resolver for the parent nexthop.
+ * Set resolver flag for better clarity and delimiter
+ * in flat list of nexthops in json.
+ */
+ if (nexthop->rparent)
+ json_object_boolean_true_add(json_nexthop, "resolver");
+
+ if ((re == NULL || (nexthop->vrf_id != re->vrf_id)))
+ json_object_string_add(json_nexthop, "vrf",
+ vrf_id_to_name(nexthop->vrf_id));
+
+ if (CHECK_FLAG(nexthop->flags, NEXTHOP_FLAG_DUPLICATE))
+ json_object_boolean_true_add(json_nexthop, "duplicate");
+
+ if (CHECK_FLAG(nexthop->flags, NEXTHOP_FLAG_ACTIVE))
+ json_object_boolean_true_add(json_nexthop, "active");
+
+ if (CHECK_FLAG(nexthop->flags, NEXTHOP_FLAG_ONLINK))
+ json_object_boolean_true_add(json_nexthop, "onLink");
+
+ if (CHECK_FLAG(nexthop->flags, NEXTHOP_FLAG_LINKDOWN))
+ json_object_boolean_true_add(json_nexthop, "linkDown");
+
+ if (CHECK_FLAG(nexthop->flags, NEXTHOP_FLAG_RECURSIVE))
+ json_object_boolean_true_add(json_nexthop, "recursive");
+
+ if (CHECK_FLAG(nexthop->flags, NEXTHOP_FLAG_HAS_BACKUP)) {
+ json_backups = json_object_new_array();
+ for (i = 0; i < nexthop->backup_num; i++) {
+ json_object_array_add(
+ json_backups,
+ json_object_new_int(nexthop->backup_idx[i]));
+ }
+
+ json_object_object_add(json_nexthop, "backupIndex",
+ json_backups);
+ }
+
+ switch (nexthop->type) {
+ case NEXTHOP_TYPE_IPV4:
+ case NEXTHOP_TYPE_IPV4_IFINDEX:
+ if (nexthop->src.ipv4.s_addr)
+ json_object_string_addf(json_nexthop, "source", "%pI4",
+ &nexthop->src.ipv4);
+ break;
+ case NEXTHOP_TYPE_IPV6:
+ case NEXTHOP_TYPE_IPV6_IFINDEX:
+ if (!IPV6_ADDR_SAME(&nexthop->src.ipv6, &in6addr_any))
+ json_object_string_addf(json_nexthop, "source", "%pI6",
+ &nexthop->src.ipv6);
+ break;
+ case NEXTHOP_TYPE_IFINDEX:
+ case NEXTHOP_TYPE_BLACKHOLE:
+ break;
+ }
+
+ if (nexthop->nh_label && nexthop->nh_label->num_labels) {
+ json_labels = json_object_new_array();
+
+ for (int label_index = 0;
+ label_index < nexthop->nh_label->num_labels; label_index++)
+ json_object_array_add(
+ json_labels,
+ json_object_new_int((
+ (nexthop->nh_label_type ==
+ ZEBRA_LSP_EVPN)
+ ? label2vni(
+ &nexthop->nh_label->label
+ [label_index])
+ : nexthop->nh_label->label
+ [label_index])));
+
+ json_object_object_add(json_nexthop, "labels", json_labels);
+ }
+
+ if (nexthop->weight)
+ json_object_int_add(json_nexthop, "weight", nexthop->weight);
+
+ if (nexthop->srte_color)
+ json_object_int_add(json_nexthop, "srteColor",
+ nexthop->srte_color);
+
+ if (nexthop->nh_srv6) {
+ json_seg6local = json_object_new_object();
+ json_object_string_add(
+ json_seg6local, "action",
+ seg6local_action2str(
+ nexthop->nh_srv6->seg6local_action));
+ json_object_object_add(json_nexthop, "seg6local",
+ json_seg6local);
+
+ json_seg6 = json_object_new_object();
+ json_object_string_addf(json_seg6, "segs", "%pI6",
+ &nexthop->nh_srv6->seg6_segs);
+ json_object_object_add(json_nexthop, "seg6", json_seg6);
+ }
+}
+
+/*
+ * Helper for nexthop output, used in the 'show ip route' path
+ */
+void show_route_nexthop_helper(struct vty *vty, const struct route_entry *re,
+ const struct nexthop *nexthop)
+{
+ char buf[MPLS_LABEL_STRLEN];
+ int i;
switch (nexthop->type) {
case NEXTHOP_TYPE_IPV4:
vty_out(vty, " via %pI4", &nexthop->gate.ipv4);
if (nexthop->ifindex)
vty_out(vty, ", %s",
- ifindex2ifname_per_ns(zns, nexthop->ifindex));
+ ifindex2ifname(nexthop->ifindex,
+ nexthop->vrf_id));
break;
case NEXTHOP_TYPE_IPV6:
case NEXTHOP_TYPE_IPV6_IFINDEX:
- vty_out(vty, " %s",
- inet_ntop(AF_INET6, &nexthop->gate.ipv6, buf, BUFSIZ));
+ vty_out(vty, " via %s",
+ inet_ntop(AF_INET6, &nexthop->gate.ipv6, buf,
+ sizeof(buf)));
if (nexthop->ifindex)
- vty_out(vty, ", via %s",
- ifindex2ifname_per_ns(zns, nexthop->ifindex));
+ vty_out(vty, ", %s",
+ ifindex2ifname(nexthop->ifindex,
+ nexthop->vrf_id));
break;
+
case NEXTHOP_TYPE_IFINDEX:
vty_out(vty, " is directly connected, %s",
- ifindex2ifname_per_ns(zns, nexthop->ifindex));
+ ifindex2ifname(nexthop->ifindex, nexthop->vrf_id));
break;
case NEXTHOP_TYPE_BLACKHOLE:
- vty_out(vty, " is directly connected, Null0");
+ vty_out(vty, " unreachable");
+ switch (nexthop->bh_type) {
+ case BLACKHOLE_REJECT:
+ vty_out(vty, " (ICMP unreachable)");
+ break;
+ case BLACKHOLE_ADMINPROHIB:
+ vty_out(vty, " (ICMP admin-prohibited)");
+ break;
+ case BLACKHOLE_NULL:
+ vty_out(vty, " (blackhole)");
+ break;
+ case BLACKHOLE_UNSPEC:
+ break;
+ }
break;
- default:
+ }
+
+ if ((re == NULL || (nexthop->vrf_id != re->vrf_id)))
+ vty_out(vty, " (vrf %s)", vrf_id_to_name(nexthop->vrf_id));
+
+ if (!CHECK_FLAG(nexthop->flags, NEXTHOP_FLAG_ACTIVE))
+ vty_out(vty, " inactive");
+
+ if (CHECK_FLAG(nexthop->flags, NEXTHOP_FLAG_ONLINK))
+ vty_out(vty, " onlink");
+
+ if (CHECK_FLAG(nexthop->flags, NEXTHOP_FLAG_LINKDOWN))
+ vty_out(vty, " linkdown");
+
+ if (CHECK_FLAG(nexthop->flags, NEXTHOP_FLAG_RECURSIVE))
+ vty_out(vty, " (recursive)");
+
+ switch (nexthop->type) {
+ case NEXTHOP_TYPE_IPV4:
+ case NEXTHOP_TYPE_IPV4_IFINDEX:
+ if (nexthop->src.ipv4.s_addr) {
+ vty_out(vty, ", src %pI4", &nexthop->src.ipv4);
+ /* SR-TE information */
+ if (nexthop->srte_color)
+ vty_out(vty, ", SR-TE color %u",
+ nexthop->srte_color);
+ }
break;
+ case NEXTHOP_TYPE_IPV6:
+ case NEXTHOP_TYPE_IPV6_IFINDEX:
+ if (!IPV6_ADDR_SAME(&nexthop->src.ipv6, &in6addr_any))
+ vty_out(vty, ", src %pI6", &nexthop->src.ipv6);
+ break;
+ case NEXTHOP_TYPE_IFINDEX:
+ case NEXTHOP_TYPE_BLACKHOLE:
+ break;
+ }
+
+ /* Label information */
+ if (nexthop->nh_label && nexthop->nh_label->num_labels) {
+ vty_out(vty, ", label %s",
+ mpls_label2str(nexthop->nh_label->num_labels,
+ nexthop->nh_label->label, buf,
+ sizeof(buf), nexthop->nh_label_type, 1));
+ }
+
+ if (nexthop->nh_srv6) {
+ seg6local_context2str(buf, sizeof(buf),
+ &nexthop->nh_srv6->seg6local_ctx,
+ nexthop->nh_srv6->seg6local_action);
+ vty_out(vty, ", seg6local %s %s",
+ seg6local_action2str(
+ nexthop->nh_srv6->seg6local_action),
+ buf);
+ vty_out(vty, ", seg6 %pI6", &nexthop->nh_srv6->seg6_segs);
+ }
+
+ if (nexthop->weight)
+ vty_out(vty, ", weight %u", nexthop->weight);
+
+ if (CHECK_FLAG(nexthop->flags, NEXTHOP_FLAG_HAS_BACKUP)) {
+ vty_out(vty, ", backup %d", nexthop->backup_idx[0]);
+
+ for (i = 1; i < nexthop->backup_num; i++)
+ vty_out(vty, ",%d", nexthop->backup_idx[i]);
}
- vty_out(vty, "\n");
}
-static void print_rnh(struct route_node *rn, struct vty *vty)
+static void print_rnh(struct route_node *rn, struct vty *vty, json_object *json)
{
struct rnh *rnh;
struct nexthop *nexthop;
struct listnode *node;
struct zserv *client;
char buf[BUFSIZ];
+ json_object *json_nht = NULL;
+ json_object *json_client_array = NULL;
+ json_object *json_client = NULL;
+ json_object *json_nexthop_array = NULL;
+ json_object *json_nexthop = NULL;
rnh = rn->info;
- vty_out(vty, "%s%s\n",
- inet_ntop(rn->p.family, &rn->p.u.prefix, buf, BUFSIZ),
- CHECK_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED) ? "(Connected)"
- : "");
- if (rnh->state) {
- vty_out(vty, " resolved via %s\n",
- zebra_route_string(rnh->state->type));
- for (nexthop = rnh->state->nhe->nhg.nexthop; nexthop;
- nexthop = nexthop->next)
- print_nh(nexthop, vty);
- } else
- vty_out(vty, " unresolved%s\n",
+
+ if (json) {
+ json_nht = json_object_new_object();
+ json_nexthop_array = json_object_new_array();
+ json_client_array = json_object_new_array();
+
+ json_object_object_add(
+ json,
+ inet_ntop(rn->p.family, &rn->p.u.prefix, buf, BUFSIZ),
+ json_nht);
+ json_object_boolean_add(
+ json_nht, "nhtConnected",
+ CHECK_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED));
+ json_object_object_add(json_nht, "clientList",
+ json_client_array);
+ json_object_object_add(json_nht, "nexthops",
+ json_nexthop_array);
+ } else {
+ vty_out(vty, "%s%s\n",
+ inet_ntop(rn->p.family, &rn->p.u.prefix, buf, BUFSIZ),
CHECK_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED)
? "(Connected)"
: "");
+ }
+
+ if (rnh->state) {
+ if (json)
+ json_object_string_add(
+ json_nht, "resolvedProtocol",
+ zebra_route_string(rnh->state->type));
+ else
+ vty_out(vty, " resolved via %s\n",
+ zebra_route_string(rnh->state->type));
+
+ for (nexthop = rnh->state->nhe->nhg.nexthop; nexthop;
+ nexthop = nexthop->next) {
+ if (json) {
+ json_nexthop = json_object_new_object();
+ json_object_array_add(json_nexthop_array,
+ json_nexthop);
+ show_nexthop_json_helper(json_nexthop, nexthop,
+ NULL);
+ } else {
+ show_route_nexthop_helper(vty, NULL, nexthop);
+ vty_out(vty, "\n");
+ }
+ }
+ } else {
+ if (json)
+ json_object_boolean_add(
+ json_nht, "unresolved",
+ CHECK_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED));
+ else
+ vty_out(vty, " unresolved%s\n",
+ CHECK_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED)
+ ? "(Connected)"
+ : "");
+ }
+
+ if (!json)
+ vty_out(vty, " Client list:");
+
+ for (ALL_LIST_ELEMENTS_RO(rnh->client_list, node, client)) {
+ if (json) {
+ json_client = json_object_new_object();
+ json_object_array_add(json_client_array, json_client);
+
+ json_object_string_add(
+ json_client, "protocol",
+ zebra_route_string(client->proto));
+ json_object_int_add(json_client, "socket",
+ client->sock);
+ json_object_string_add(json_client, "protocolFiltered",
+ (rnh->filtered[client->proto]
+ ? "(filtered)"
+ : "none"));
+ } else {
+ vty_out(vty, " %s(fd %d)%s",
+ zebra_route_string(client->proto), client->sock,
+ rnh->filtered[client->proto] ? "(filtered)"
+ : "");
+ }
+ }
+
+ if (!list_isempty(rnh->zebra_pseudowire_list)) {
+ if (json)
+ json_object_boolean_true_add(json_nht,
+ "zebraPseudowires");
+ else
+ vty_out(vty, " zebra[pseudowires]");
+ }
- vty_out(vty, " Client list:");
- for (ALL_LIST_ELEMENTS_RO(rnh->client_list, node, client))
- vty_out(vty, " %s(fd %d)%s", zebra_route_string(client->proto),
- client->sock,
- rnh->filtered[client->proto] ? "(filtered)" : "");
- if (!list_isempty(rnh->zebra_pseudowire_list))
- vty_out(vty, " zebra[pseudowires]");
- vty_out(vty, "\n");
+ if (!json)
+ vty_out(vty, "\n");
}
static int zebra_cleanup_rnh_client(vrf_id_t vrf_id, afi_t afi, safi_t safi,
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