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- /*
- * RIPngd and zebra interface.
- * Copyright (C) 1998, 1999 Kunihiro Ishiguro
- *
- * 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 GNU Zebra; see the file COPYING. If not, write to the Free
- * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- * 02111-1307, USA.
- */
- #include <zebra.h>
- #include "command.h"
- #include "prefix.h"
- #include "table.h"
- #include "stream.h"
- #include "memory.h"
- #include "routemap.h"
- #include "zclient.h"
- #include "log.h"
- #include "ripngd/ripngd.h"
- #include "ripngd/ripng_debug.h"
- /* All information about zebra. */
- struct zclient *zclient = NULL;
- /* Send ECMP routes to zebra. */
- static void
- ripng_zebra_ipv6_send (struct route_node *rp, u_char cmd)
- {
- static struct in6_addr **nexthops = NULL;
- static ifindex_t *ifindexes = NULL;
- static unsigned int nexthops_len = 0;
- struct list *list = (struct list *)rp->info;
- struct zapi_ipv6 api;
- struct listnode *listnode = NULL;
- struct ripng_info *rinfo = NULL;
- int count = 0;
- if (vrf_bitmap_check (zclient->redist[ZEBRA_ROUTE_RIPNG], VRF_DEFAULT))
- {
- api.vrf_id = VRF_DEFAULT;
- api.type = ZEBRA_ROUTE_RIPNG;
- api.flags = 0;
- api.message = 0;
- api.safi = SAFI_UNICAST;
- if (nexthops_len < listcount (list))
- {
- nexthops_len = listcount (list);
- nexthops = XREALLOC (MTYPE_TMP, nexthops,
- nexthops_len * sizeof (struct in6_addr *));
- ifindexes = XREALLOC (MTYPE_TMP, ifindexes,
- nexthops_len * sizeof (unsigned int));
- }
- SET_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP);
- SET_FLAG (api.message, ZAPI_MESSAGE_IFINDEX);
- for (ALL_LIST_ELEMENTS_RO (list, listnode, rinfo))
- {
- nexthops[count] = &rinfo->nexthop;
- ifindexes[count] = rinfo->ifindex;
- count++;
- if (cmd == ZEBRA_IPV6_ROUTE_ADD)
- SET_FLAG (rinfo->flags, RIPNG_RTF_FIB);
- else
- UNSET_FLAG (rinfo->flags, RIPNG_RTF_FIB);
- }
- api.nexthop = nexthops;
- api.nexthop_num = count;
- api.ifindex = ifindexes;
- api.ifindex_num = count;
- rinfo = listgetdata (listhead (list));
- SET_FLAG (api.message, ZAPI_MESSAGE_METRIC);
- api.metric = rinfo->metric;
- zapi_ipv6_route (cmd, zclient,
- (struct prefix_ipv6 *)&rp->p, &api);
- if (IS_RIPNG_DEBUG_ZEBRA)
- {
- if (ripng->ecmp)
- zlog_debug ("%s: %s/%d nexthops %d",
- (cmd == ZEBRA_IPV6_ROUTE_ADD) ? \
- "Install into zebra" : "Delete from zebra",
- inet6_ntoa (rp->p.u.prefix6), rp->p.prefixlen, count);
- else
- zlog_debug ("%s: %s/%d",
- (cmd == ZEBRA_IPV6_ROUTE_ADD) ? \
- "Install into zebra" : "Delete from zebra",
- inet6_ntoa (rp->p.u.prefix6), rp->p.prefixlen);
- }
- }
- }
- /* Add/update ECMP routes to zebra. */
- void
- ripng_zebra_ipv6_add (struct route_node *rp)
- {
- ripng_zebra_ipv6_send (rp, ZEBRA_IPV6_ROUTE_ADD);
- }
- /* Delete ECMP routes from zebra. */
- void
- ripng_zebra_ipv6_delete (struct route_node *rp)
- {
- ripng_zebra_ipv6_send (rp, ZEBRA_IPV6_ROUTE_DELETE);
- }
- /* Zebra route add and delete treatment. */
- static int
- ripng_zebra_read_ipv6 (int command, struct zclient *zclient,
- zebra_size_t length, vrf_id_t vrf_id)
- {
- struct stream *s;
- struct zapi_ipv6 api;
- unsigned long ifindex;
- struct in6_addr nexthop;
- struct prefix_ipv6 p;
- s = zclient->ibuf;
- ifindex = 0;
- memset (&nexthop, 0, sizeof (struct in6_addr));
- /* Type, flags, message. */
- api.type = stream_getc (s);
- api.flags = stream_getc (s);
- api.message = stream_getc (s);
- /* IPv6 prefix. */
- memset (&p, 0, sizeof (struct prefix_ipv6));
- p.family = AF_INET6;
- p.prefixlen = stream_getc (s);
- stream_get (&p.prefix, s, PSIZE (p.prefixlen));
- /* Nexthop, ifindex, distance, metric. */
- if (CHECK_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP))
- {
- api.nexthop_num = stream_getc (s);
- stream_get (&nexthop, s, 16);
- }
- if (CHECK_FLAG (api.message, ZAPI_MESSAGE_IFINDEX))
- {
- api.ifindex_num = stream_getc (s);
- ifindex = stream_getl (s);
- }
- if (CHECK_FLAG (api.message, ZAPI_MESSAGE_DISTANCE))
- api.distance = stream_getc (s);
- else
- api.distance = 0;
- if (CHECK_FLAG (api.message, ZAPI_MESSAGE_METRIC))
- api.metric = stream_getl (s);
- else
- api.metric = 0;
- if (command == ZEBRA_IPV6_ROUTE_ADD)
- ripng_redistribute_add (api.type, RIPNG_ROUTE_REDISTRIBUTE, &p, ifindex, &nexthop);
- else
- ripng_redistribute_delete (api.type, RIPNG_ROUTE_REDISTRIBUTE, &p, ifindex);
- return 0;
- }
- void
- ripng_zclient_reset (void)
- {
- zclient_reset (zclient);
- }
- static int
- ripng_redistribute_unset (int type)
- {
- if (! vrf_bitmap_check (zclient->redist[type], VRF_DEFAULT))
- return CMD_SUCCESS;
- vrf_bitmap_set (zclient->redist[type], VRF_DEFAULT);
- if (zclient->sock > 0)
- zebra_redistribute_send (ZEBRA_REDISTRIBUTE_DELETE, zclient, type,
- VRF_DEFAULT);
- ripng_redistribute_withdraw (type);
-
- return CMD_SUCCESS;
- }
- int
- ripng_redistribute_check (int type)
- {
- return vrf_bitmap_check (zclient->redist[type], VRF_DEFAULT);
- }
- static void
- ripng_redistribute_metric_set (int type, int metric)
- {
- ripng->route_map[type].metric_config = 1;
- ripng->route_map[type].metric = metric;
- }
- static int
- ripng_redistribute_metric_unset (int type)
- {
- ripng->route_map[type].metric_config = 0;
- ripng->route_map[type].metric = 0;
- return 0;
- }
- static void
- ripng_redistribute_routemap_set (int type, const char *name)
- {
- if (ripng->route_map[type].name)
- free (ripng->route_map[type].name);
- ripng->route_map[type].name = strdup (name);
- ripng->route_map[type].map = route_map_lookup_by_name (name);
- }
- static void
- ripng_redistribute_routemap_unset (int type)
- {
- if (ripng->route_map[type].name)
- free (ripng->route_map[type].name);
- ripng->route_map[type].name = NULL;
- ripng->route_map[type].map = NULL;
- }
- /* Redistribution types */
- static struct {
- int type;
- int str_min_len;
- const char *str;
- } redist_type[] = {
- {ZEBRA_ROUTE_KERNEL, 1, "kernel"},
- {ZEBRA_ROUTE_CONNECT, 1, "connected"},
- {ZEBRA_ROUTE_STATIC, 1, "static"},
- {ZEBRA_ROUTE_OSPF6, 1, "ospf6"},
- {ZEBRA_ROUTE_BGP, 2, "bgp"},
- {ZEBRA_ROUTE_BABEL, 2, "babel"},
- {0, 0, NULL}
- };
- void
- ripng_redistribute_clean ()
- {
- int i;
- for (i = 0; redist_type[i].str; i++)
- {
- if (vrf_bitmap_check (zclient->redist[redist_type[i].type], VRF_DEFAULT))
- {
- if (zclient->sock > 0)
- zebra_redistribute_send (ZEBRA_REDISTRIBUTE_DELETE,
- zclient, redist_type[i].type,
- VRF_DEFAULT);
- vrf_bitmap_unset (zclient->redist[redist_type[i].type], VRF_DEFAULT);
- /* Remove the routes from RIPng table. */
- ripng_redistribute_withdraw (redist_type[i].type);
- }
- }
- }
- DEFUN (router_zebra,
- router_zebra_cmd,
- "router zebra",
- "Enable a routing process\n"
- "Make connection to zebra daemon\n")
- {
- vty->node = ZEBRA_NODE;
- zclient->enable = 1;
- zclient_start (zclient);
- return CMD_SUCCESS;
- }
- DEFUN (no_router_zebra,
- no_router_zebra_cmd,
- "no router zebra",
- NO_STR
- "Disable a routing process\n"
- "Stop connection to zebra daemon\n")
- {
- zclient->enable = 0;
- zclient_stop (zclient);
- return CMD_SUCCESS;
- }
- DEFUN (ripng_redistribute_ripng,
- ripng_redistribute_ripng_cmd,
- "redistribute ripng",
- "Redistribute information from another routing protocol\n"
- "RIPng route\n")
- {
- vrf_bitmap_set (zclient->redist[ZEBRA_ROUTE_RIPNG], VRF_DEFAULT);
- return CMD_SUCCESS;
- }
- DEFUN (no_ripng_redistribute_ripng,
- no_ripng_redistribute_ripng_cmd,
- "no redistribute ripng",
- NO_STR
- "Redistribute information from another routing protocol\n"
- "RIPng route\n")
- {
- vrf_bitmap_unset (zclient->redist[ZEBRA_ROUTE_RIPNG], VRF_DEFAULT);
- return CMD_SUCCESS;
- }
- DEFUN (ripng_redistribute_type,
- ripng_redistribute_type_cmd,
- "redistribute " QUAGGA_REDIST_STR_RIPNGD,
- "Redistribute\n"
- QUAGGA_REDIST_HELP_STR_RIPNGD)
- {
- int type;
- type = proto_redistnum(AFI_IP6, argv[0]);
- if (type < 0)
- {
- vty_out(vty, "Invalid type %s%s", argv[0], VTY_NEWLINE);
- return CMD_WARNING;
- }
- zclient_redistribute (ZEBRA_REDISTRIBUTE_ADD, zclient, type, VRF_DEFAULT);
- return CMD_SUCCESS;
- }
- DEFUN (no_ripng_redistribute_type,
- no_ripng_redistribute_type_cmd,
- "no redistribute " QUAGGA_REDIST_STR_RIPNGD,
- NO_STR
- "Redistribute\n"
- QUAGGA_REDIST_HELP_STR_RIPNGD)
- {
- int type;
- type = proto_redistnum(AFI_IP6, argv[0]);
- if (type < 0)
- {
- vty_out(vty, "Invalid type %s%s", argv[0], VTY_NEWLINE);
- return CMD_WARNING;
- }
- ripng_redistribute_metric_unset (type);
- ripng_redistribute_routemap_unset (type);
- return ripng_redistribute_unset (type);
- }
- DEFUN (ripng_redistribute_type_metric,
- ripng_redistribute_type_metric_cmd,
- "redistribute " QUAGGA_REDIST_STR_RIPNGD " metric <0-16>",
- "Redistribute\n"
- QUAGGA_REDIST_HELP_STR_RIPNGD
- "Metric\n"
- "Metric value\n")
- {
- int type;
- int metric;
- metric = atoi (argv[1]);
- type = proto_redistnum(AFI_IP6, argv[0]);
- if (type < 0)
- {
- vty_out(vty, "Invalid type %s%s", argv[0], VTY_NEWLINE);
- return CMD_WARNING;
- }
- ripng_redistribute_metric_set (type, metric);
- zclient_redistribute (ZEBRA_REDISTRIBUTE_ADD, zclient, type, VRF_DEFAULT);
- return CMD_SUCCESS;
- }
- ALIAS (no_ripng_redistribute_type,
- no_ripng_redistribute_type_metric_cmd,
- "no redistribute " QUAGGA_REDIST_STR_RIPNGD " metric <0-16>",
- NO_STR
- "Redistribute\n"
- QUAGGA_REDIST_HELP_STR_RIPNGD
- "Metric\n"
- "Metric value\n")
- DEFUN (ripng_redistribute_type_routemap,
- ripng_redistribute_type_routemap_cmd,
- "redistribute " QUAGGA_REDIST_STR_RIPNGD " route-map WORD",
- "Redistribute\n"
- QUAGGA_REDIST_HELP_STR_RIPNGD
- "Route map reference\n"
- "Pointer to route-map entries\n")
- {
- int type;
- type = proto_redistnum(AFI_IP6, argv[0]);
- if (type < 0)
- {
- vty_out(vty, "Invalid type %s%s", argv[0], VTY_NEWLINE);
- return CMD_WARNING;
- }
- ripng_redistribute_routemap_set (type, argv[1]);
- zclient_redistribute (ZEBRA_REDISTRIBUTE_ADD, zclient, type, VRF_DEFAULT);
- return CMD_SUCCESS;
- }
- ALIAS (no_ripng_redistribute_type,
- no_ripng_redistribute_type_routemap_cmd,
- "no redistribute " QUAGGA_REDIST_STR_RIPNGD " route-map WORD",
- NO_STR
- "Redistribute\n"
- QUAGGA_REDIST_HELP_STR_RIPNGD
- "Route map reference\n"
- "Pointer to route-map entries\n")
- DEFUN (ripng_redistribute_type_metric_routemap,
- ripng_redistribute_type_metric_routemap_cmd,
- "redistribute " QUAGGA_REDIST_STR_RIPNGD " metric <0-16> route-map WORD",
- "Redistribute\n"
- QUAGGA_REDIST_HELP_STR_RIPNGD
- "Metric\n"
- "Metric value\n"
- "Route map reference\n"
- "Pointer to route-map entries\n")
- {
- int type;
- int metric;
- type = proto_redistnum(AFI_IP6, argv[0]);
- metric = atoi (argv[1]);
- if (type < 0)
- {
- vty_out(vty, "Invalid type %s%s", argv[0], VTY_NEWLINE);
- return CMD_WARNING;
- }
- ripng_redistribute_metric_set (type, metric);
- ripng_redistribute_routemap_set (type, argv[2]);
- zclient_redistribute (ZEBRA_REDISTRIBUTE_ADD, zclient, type, VRF_DEFAULT);
- return CMD_SUCCESS;
- }
- ALIAS (no_ripng_redistribute_type,
- no_ripng_redistribute_type_metric_routemap_cmd,
- "no redistribute " QUAGGA_REDIST_STR_RIPNGD " metric <0-16> route-map WORD",
- NO_STR
- "Redistribute\n"
- QUAGGA_REDIST_HELP_STR_RIPNGD
- "Route map reference\n"
- "Pointer to route-map entries\n")
- void
- ripng_redistribute_write (struct vty *vty, int config_mode)
- {
- int i;
- for (i = 0; i < ZEBRA_ROUTE_MAX; i++)
- if (i != zclient->redist_default &&
- vrf_bitmap_check (zclient->redist[i], VRF_DEFAULT))
- {
- if (config_mode)
- {
- if (ripng->route_map[i].metric_config)
- {
- if (ripng->route_map[i].name)
- vty_out (vty, " redistribute %s metric %d route-map %s%s",
- zebra_route_string(i), ripng->route_map[i].metric,
- ripng->route_map[i].name, VTY_NEWLINE);
- else
- vty_out (vty, " redistribute %s metric %d%s",
- zebra_route_string(i), ripng->route_map[i].metric,
- VTY_NEWLINE);
- }
- else
- {
- if (ripng->route_map[i].name)
- vty_out (vty, " redistribute %s route-map %s%s",
- zebra_route_string(i), ripng->route_map[i].name,
- VTY_NEWLINE);
- else
- vty_out (vty, " redistribute %s%s", zebra_route_string(i),
- VTY_NEWLINE);
- }
- }
- else
- vty_out (vty, " %s", zebra_route_string(i));
- }
- }
- /* RIPng configuration write function. */
- static int
- zebra_config_write (struct vty *vty)
- {
- if (! zclient->enable)
- {
- vty_out (vty, "no router zebra%s", VTY_NEWLINE);
- return 1;
- }
- else if (! vrf_bitmap_check (zclient->redist[ZEBRA_ROUTE_RIPNG], VRF_DEFAULT))
- {
- vty_out (vty, "router zebra%s", VTY_NEWLINE);
- vty_out (vty, " no redistribute ripng%s", VTY_NEWLINE);
- return 1;
- }
- return 0;
- }
- /* Zebra node structure. */
- static struct cmd_node zebra_node =
- {
- ZEBRA_NODE,
- "%s(config-router)# ",
- };
- static void
- ripng_zebra_connected (struct zclient *zclient)
- {
- zclient_send_requests (zclient, VRF_DEFAULT);
- }
- /* Initialize zebra structure and it's commands. */
- void
- zebra_init (struct thread_master *master)
- {
- /* Allocate zebra structure. */
- zclient = zclient_new (master);
- zclient_init (zclient, ZEBRA_ROUTE_RIPNG);
- zclient->zebra_connected = ripng_zebra_connected;
- zclient->interface_up = ripng_interface_up;
- zclient->interface_down = ripng_interface_down;
- zclient->interface_add = ripng_interface_add;
- zclient->interface_delete = ripng_interface_delete;
- zclient->interface_address_add = ripng_interface_address_add;
- zclient->interface_address_delete = ripng_interface_address_delete;
- zclient->ipv6_route_add = ripng_zebra_read_ipv6;
- zclient->ipv6_route_delete = ripng_zebra_read_ipv6;
-
- /* Install zebra node. */
- install_node (&zebra_node, zebra_config_write);
- /* Install command element for zebra node. */
- install_element (CONFIG_NODE, &router_zebra_cmd);
- install_element (CONFIG_NODE, &no_router_zebra_cmd);
- install_default (ZEBRA_NODE);
- install_element (ZEBRA_NODE, &ripng_redistribute_ripng_cmd);
- install_element (ZEBRA_NODE, &no_ripng_redistribute_ripng_cmd);
- /* Install command elements to ripng node */
- install_element (RIPNG_NODE, &ripng_redistribute_type_cmd);
- install_element (RIPNG_NODE, &ripng_redistribute_type_routemap_cmd);
- install_element (RIPNG_NODE, &ripng_redistribute_type_metric_cmd);
- install_element (RIPNG_NODE, &ripng_redistribute_type_metric_routemap_cmd);
- install_element (RIPNG_NODE, &no_ripng_redistribute_type_cmd);
- install_element (RIPNG_NODE, &no_ripng_redistribute_type_routemap_cmd);
- install_element (RIPNG_NODE, &no_ripng_redistribute_type_metric_cmd);
- install_element (RIPNG_NODE, &no_ripng_redistribute_type_metric_routemap_cmd);
- }
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