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/*
* Route map function of ospfd.
* Copyright (C) 2000 IP Infusion Inc.
*
* Written by Toshiaki Takada.
*
* 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 "memory.h"
#include "prefix.h"
#include "table.h"
#include "routemap.h"
#include "command.h"
#include "log.h"
#include "plist.h"
#include "ospfd/ospfd.h"
#include "ospfd/ospf_asbr.h"
#include "ospfd/ospf_interface.h"
#include "ospfd/ospf_lsa.h"
#include "ospfd/ospf_route.h"
#include "ospfd/ospf_zebra.h"
/* Hook function for updating route_map assignment. */
static void
ospf_route_map_update (const char *name)
{
struct ospf *ospf;
int type;
/* If OSPF instatnce does not exist, return right now. */
ospf = ospf_lookup ();
if (ospf == NULL)
return;
/* Update route-map */
for (type = 0; type <= ZEBRA_ROUTE_MAX; type++)
{
if (ROUTEMAP_NAME (ospf, type)
&& strcmp (ROUTEMAP_NAME (ospf, type), name) == 0)
{
/* Keep old route-map. */
struct route_map *old = ROUTEMAP (ospf, type);
/* Update route-map. */
ROUTEMAP (ospf, type) =
route_map_lookup_by_name (ROUTEMAP_NAME (ospf, type));
/* No update for this distribute type. */
if (old == NULL && ROUTEMAP (ospf, type) == NULL)
continue;
ospf_distribute_list_update (ospf, type);
}
}
}
static void
ospf_route_map_event (route_map_event_t event, const char *name)
{
struct ospf *ospf;
int type;
/* If OSPF instatnce does not exist, return right now. */
ospf = ospf_lookup ();
if (ospf == NULL)
return;
/* Update route-map. */
for (type = 0; type <= ZEBRA_ROUTE_MAX; type++)
{
if (ROUTEMAP_NAME (ospf, type) && ROUTEMAP (ospf, type)
&& !strcmp (ROUTEMAP_NAME (ospf, type), name))
{
ospf_distribute_list_update (ospf, type);
}
}
}
/* Delete rip route map rule. */
static int
ospf_route_match_delete (struct vty *vty, struct route_map_index *index,
const char *command, const char *arg)
{
int ret;
ret = route_map_delete_match (index, command, arg);
if (ret)
{
switch (ret)
{
case RMAP_RULE_MISSING:
vty_out (vty, "%% Can't find rule.%s", VTY_NEWLINE);
return CMD_WARNING;
case RMAP_COMPILE_ERROR:
vty_out (vty, "%% Argument is malformed.%s", VTY_NEWLINE);
return CMD_WARNING;
}
}
return CMD_SUCCESS;
}
static int
ospf_route_match_add (struct vty *vty, struct route_map_index *index,
const char *command, const char *arg)
{
int ret;
ret = route_map_add_match (index, command, arg);
if (ret)
{
switch (ret)
{
case RMAP_RULE_MISSING:
vty_out (vty, "%% Can't find rule.%s", VTY_NEWLINE);
return CMD_WARNING;
case RMAP_COMPILE_ERROR:
vty_out (vty, "%% Argument is malformed.%s", VTY_NEWLINE);
return CMD_WARNING;
}
}
return CMD_SUCCESS;
}
static int
ospf_route_set_add (struct vty *vty, struct route_map_index *index,
const char *command, const char *arg)
{
int ret;
ret = route_map_add_set (index, command, arg);
if (ret)
{
switch (ret)
{
case RMAP_RULE_MISSING:
vty_out (vty, "%% Can't find rule.%s", VTY_NEWLINE);
return CMD_WARNING;
case RMAP_COMPILE_ERROR:
vty_out (vty, "%% Argument is malformed.%s", VTY_NEWLINE);
return CMD_WARNING;
}
}
return CMD_SUCCESS;
}
/* Delete rip route map rule. */
static int
ospf_route_set_delete (struct vty *vty, struct route_map_index *index,
const char *command, const char *arg)
{
int ret;
ret = route_map_delete_set (index, command, arg);
if (ret)
{
switch (ret)
{
case RMAP_RULE_MISSING:
vty_out (vty, "%% Can't find rule.%s", VTY_NEWLINE);
return CMD_WARNING;
case RMAP_COMPILE_ERROR:
vty_out (vty, "%% Argument is malformed.%s", VTY_NEWLINE);
return CMD_WARNING;
}
}
return CMD_SUCCESS;
}
/* `match ip netxthop ' */
/* Match function return 1 if match is success else return zero. */
static route_map_result_t
route_match_ip_nexthop (void *rule, struct prefix *prefix,
route_map_object_t type, void *object)
{
struct access_list *alist;
struct external_info *ei = object;
struct prefix_ipv4 p;
if (type == RMAP_OSPF)
{
p.family = AF_INET;
p.prefix = ei->nexthop;
p.prefixlen = IPV4_MAX_BITLEN;
alist = access_list_lookup (AFI_IP, (char *) rule);
if (alist == NULL)
return RMAP_NOMATCH;
return (access_list_apply (alist, &p) == FILTER_DENY ?
RMAP_NOMATCH : RMAP_MATCH);
}
return RMAP_NOMATCH;
}
/* Route map `ip next-hop' match statement. `arg' should be
access-list name. */
static void *
route_match_ip_nexthop_compile (const char *arg)
{
return XSTRDUP (MTYPE_ROUTE_MAP_COMPILED, arg);
}
/* Free route map's compiled `ip address' value. */
static void
route_match_ip_nexthop_free (void *rule)
{
XFREE (MTYPE_ROUTE_MAP_COMPILED, rule);
}
/* Route map commands for metric matching. */
struct route_map_rule_cmd route_match_ip_nexthop_cmd =
{
"ip next-hop",
route_match_ip_nexthop,
route_match_ip_nexthop_compile,
route_match_ip_nexthop_free
};
/* `match ip next-hop prefix-list PREFIX_LIST' */
static route_map_result_t
route_match_ip_next_hop_prefix_list (void *rule, struct prefix *prefix,
route_map_object_t type, void *object)
{
struct prefix_list *plist;
struct external_info *ei = object;
struct prefix_ipv4 p;
if (type == RMAP_OSPF)
{
p.family = AF_INET;
p.prefix = ei->nexthop;
p.prefixlen = IPV4_MAX_BITLEN;
plist = prefix_list_lookup (AFI_IP, (char *) rule);
if (plist == NULL)
return RMAP_NOMATCH;
return (prefix_list_apply (plist, &p) == PREFIX_DENY ?
RMAP_NOMATCH : RMAP_MATCH);
}
return RMAP_NOMATCH;
}
static void *
route_match_ip_next_hop_prefix_list_compile (const char *arg)
{
return XSTRDUP (MTYPE_ROUTE_MAP_COMPILED, arg);
}
static void
route_match_ip_next_hop_prefix_list_free (void *rule)
{
XFREE (MTYPE_ROUTE_MAP_COMPILED, rule);
}
struct route_map_rule_cmd route_match_ip_next_hop_prefix_list_cmd =
{
"ip next-hop prefix-list",
route_match_ip_next_hop_prefix_list,
route_match_ip_next_hop_prefix_list_compile,
route_match_ip_next_hop_prefix_list_free
};
/* `match ip address IP_ACCESS_LIST' */
/* Match function should return 1 if match is success else return
zero. */
static route_map_result_t
route_match_ip_address (void *rule, struct prefix *prefix,
route_map_object_t type, void *object)
{
struct access_list *alist;
/* struct prefix_ipv4 match; */
if (type == RMAP_OSPF)
{
alist = access_list_lookup (AFI_IP, (char *) rule);
if (alist == NULL)
return RMAP_NOMATCH;
return (access_list_apply (alist, prefix) == FILTER_DENY ?
RMAP_NOMATCH : RMAP_MATCH);
}
return RMAP_NOMATCH;
}
/* Route map `ip address' match statement. `arg' should be
access-list name. */
static void *
route_match_ip_address_compile (const char *arg)
{
return XSTRDUP (MTYPE_ROUTE_MAP_COMPILED, arg);
}
/* Free route map's compiled `ip address' value. */
static void
route_match_ip_address_free (void *rule)
{
XFREE (MTYPE_ROUTE_MAP_COMPILED, rule);
}
/* Route map commands for ip address matching. */
struct route_map_rule_cmd route_match_ip_address_cmd =
{
"ip address",
route_match_ip_address,
route_match_ip_address_compile,
route_match_ip_address_free
};
/* `match ip address prefix-list PREFIX_LIST' */
static route_map_result_t
route_match_ip_address_prefix_list (void *rule, struct prefix *prefix,
route_map_object_t type, void *object)
{
struct prefix_list *plist;
if (type == RMAP_OSPF)
{
plist = prefix_list_lookup (AFI_IP, (char *) rule);
if (plist == NULL)
return RMAP_NOMATCH;
return (prefix_list_apply (plist, prefix) == PREFIX_DENY ?
RMAP_NOMATCH : RMAP_MATCH);
}
return RMAP_NOMATCH;
}
static void *
route_match_ip_address_prefix_list_compile (const char *arg)
{
return XSTRDUP (MTYPE_ROUTE_MAP_COMPILED, arg);
}
static void
route_match_ip_address_prefix_list_free (void *rule)
{
XFREE (MTYPE_ROUTE_MAP_COMPILED, rule);
}
struct route_map_rule_cmd route_match_ip_address_prefix_list_cmd =
{
"ip address prefix-list",
route_match_ip_address_prefix_list,
route_match_ip_address_prefix_list_compile,
route_match_ip_address_prefix_list_free
};
/* `match interface IFNAME' */
/* Match function should return 1 if match is success else return
zero. */
static route_map_result_t
route_match_interface (void *rule, struct prefix *prefix,
route_map_object_t type, void *object)
{
struct interface *ifp;
struct external_info *ei;
if (type == RMAP_OSPF)
{
ei = object;
ifp = if_lookup_by_name ((char *)rule);
if (ifp == NULL || ifp->ifindex != ei->ifindex)
return RMAP_NOMATCH;
return RMAP_MATCH;
}
return RMAP_NOMATCH;
}
/* Route map `interface' match statement. `arg' should be
interface name. */
static void *
route_match_interface_compile (const char *arg)
{
return XSTRDUP (MTYPE_ROUTE_MAP_COMPILED, arg);
}
/* Free route map's compiled `interface' value. */
static void
route_match_interface_free (void *rule)
{
XFREE (MTYPE_ROUTE_MAP_COMPILED, rule);
}
/* Route map commands for ip address matching. */
struct route_map_rule_cmd route_match_interface_cmd =
{
"interface",
route_match_interface,
route_match_interface_compile,
route_match_interface_free
};
/* `set metric METRIC' */
/* Set metric to attribute. */
static route_map_result_t
route_set_metric (void *rule, struct prefix *prefix,
route_map_object_t type, void *object)
{
u_int32_t *metric;
struct external_info *ei;
if (type == RMAP_OSPF)
{
/* Fetch routemap's rule information. */
metric = rule;
ei = object;
/* Set metric out value. */
ei->route_map_set.metric = *metric;
}
return RMAP_OKAY;
}
/* set metric compilation. */
static void *
route_set_metric_compile (const char *arg)
{
u_int32_t *metric;
int32_t ret;
metric = XCALLOC (MTYPE_ROUTE_MAP_COMPILED, sizeof (u_int32_t));
ret = atoi (arg);
if (ret >= 0)
{
*metric = (u_int32_t)ret;
return metric;
}
XFREE (MTYPE_ROUTE_MAP_COMPILED, metric);
return NULL;
}
/* Free route map's compiled `set metric' value. */
static void
route_set_metric_free (void *rule)
{
XFREE (MTYPE_ROUTE_MAP_COMPILED, rule);
}
/* Set metric rule structure. */
struct route_map_rule_cmd route_set_metric_cmd =
{
"metric",
route_set_metric,
route_set_metric_compile,
route_set_metric_free,
};
/* `set metric-type TYPE' */
/* Set metric-type to attribute. */
static route_map_result_t
route_set_metric_type (void *rule, struct prefix *prefix,
route_map_object_t type, void *object)
{
u_int32_t *metric_type;
struct external_info *ei;
if (type == RMAP_OSPF)
{
/* Fetch routemap's rule information. */
metric_type = rule;
ei = object;
/* Set metric out value. */
ei->route_map_set.metric_type = *metric_type;
}
return RMAP_OKAY;
}
/* set metric-type compilation. */
static void *
route_set_metric_type_compile (const char *arg)
{
u_int32_t *metric_type;
metric_type = XCALLOC (MTYPE_ROUTE_MAP_COMPILED, sizeof (u_int32_t));
if (strcmp (arg, "type-1") == 0)
*metric_type = EXTERNAL_METRIC_TYPE_1;
else if (strcmp (arg, "type-2") == 0)
*metric_type = EXTERNAL_METRIC_TYPE_2;
if (*metric_type == EXTERNAL_METRIC_TYPE_1 ||
*metric_type == EXTERNAL_METRIC_TYPE_2)
return metric_type;
XFREE (MTYPE_ROUTE_MAP_COMPILED, metric_type);
return NULL;
}
/* Free route map's compiled `set metric-type' value. */
static void
route_set_metric_type_free (void *rule)
{
XFREE (MTYPE_ROUTE_MAP_COMPILED, rule);
}
/* Set metric rule structure. */
struct route_map_rule_cmd route_set_metric_type_cmd =
{
"metric-type",
route_set_metric_type,
route_set_metric_type_compile,
route_set_metric_type_free,
};
DEFUN (match_ip_nexthop,
match_ip_nexthop_cmd,
"match ip next-hop (<1-199>|<1300-2699>|WORD)",
MATCH_STR
IP_STR
"Match next-hop address of route\n"
"IP access-list number\n"
"IP access-list number (expanded range)\n"
"IP access-list name\n")
{
return ospf_route_match_add (vty, vty->index, "ip next-hop", argv[0]);
}
DEFUN (no_match_ip_nexthop,
no_match_ip_nexthop_cmd,
"no match ip next-hop",
NO_STR
MATCH_STR
IP_STR
"Match next-hop address of route\n")
{
if (argc == 0)
return ospf_route_match_delete (vty, vty->index, "ip next-hop", NULL);
return ospf_route_match_delete (vty, vty->index, "ip next-hop", argv[0]);
}
ALIAS (no_match_ip_nexthop,
no_match_ip_nexthop_val_cmd,
"no match ip next-hop (<1-199>|<1300-2699>|WORD)",
NO_STR
MATCH_STR
IP_STR
"Match next-hop address of route\n"
"IP access-list number\n"
"IP access-list number (expanded range)\n"
"IP access-list name\n")
DEFUN (match_ip_next_hop_prefix_list,
match_ip_next_hop_prefix_list_cmd,
"match ip next-hop prefix-list WORD",
MATCH_STR
IP_STR
"Match next-hop address of route\n"
"Match entries of prefix-lists\n"
"IP prefix-list name\n")
{
return ospf_route_match_add (vty, vty->index, "ip next-hop prefix-list",
argv[0]);
}
DEFUN (no_match_ip_next_hop_prefix_list,
no_match_ip_next_hop_prefix_list_cmd,
"no match ip next-hop prefix-list",
NO_STR
MATCH_STR
IP_STR
"Match next-hop address of route\n"
"Match entries of prefix-lists\n")
{
if (argc == 0)
return ospf_route_match_delete (vty, vty->index, "ip next-hop prefix-list",
NULL);
return ospf_route_match_delete (vty, vty->index, "ip next-hop prefix-list",
argv[0]);
}
ALIAS (no_match_ip_next_hop_prefix_list,
no_match_ip_next_hop_prefix_list_val_cmd,
"no match ip next-hop prefix-list WORD",
NO_STR
MATCH_STR
IP_STR
"Match next-hop address of route\n"
"Match entries of prefix-lists\n"
"IP prefix-list name\n")
DEFUN (match_ip_address,
match_ip_address_cmd,
"match ip address (<1-199>|<1300-2699>|WORD)",
MATCH_STR
IP_STR
"Match address of route\n"
"IP access-list number\n"
"IP access-list number (expanded range)\n"
"IP access-list name\n")
{
return ospf_route_match_add (vty, vty->index, "ip address", argv[0]);
}
DEFUN (no_match_ip_address,
no_match_ip_address_cmd,
"no match ip address",
NO_STR
MATCH_STR
IP_STR
"Match address of route\n")
{
if (argc == 0)
return ospf_route_match_delete (vty, vty->index, "ip address", NULL);
return ospf_route_match_delete (vty, vty->index, "ip address", argv[0]);
}
ALIAS (no_match_ip_address,
no_match_ip_address_val_cmd,
"no match ip address (<1-199>|<1300-2699>|WORD)",
NO_STR
MATCH_STR
IP_STR
"Match address of route\n"
"IP access-list number\n"
"IP access-list number (expanded range)\n"
"IP access-list name\n")
DEFUN (match_ip_address_prefix_list,
match_ip_address_prefix_list_cmd,
"match ip address prefix-list WORD",
MATCH_STR
IP_STR
"Match address of route\n"
"Match entries of prefix-lists\n"
"IP prefix-list name\n")
{
return ospf_route_match_add (vty, vty->index, "ip address prefix-list",
argv[0]);
}
DEFUN (no_match_ip_address_prefix_list,
no_match_ip_address_prefix_list_cmd,
"no match ip address prefix-list",
NO_STR
MATCH_STR
IP_STR
"Match address of route\n"
"Match entries of prefix-lists\n")
{
if (argc == 0)
return ospf_route_match_delete (vty, vty->index, "ip address prefix-list",
NULL);
return ospf_route_match_delete (vty, vty->index, "ip address prefix-list",
argv[0]);
}
ALIAS (no_match_ip_address_prefix_list,
no_match_ip_address_prefix_list_val_cmd,
"no match ip address prefix-list WORD",
NO_STR
MATCH_STR
IP_STR
"Match address of route\n"
"Match entries of prefix-lists\n"
"IP prefix-list name\n")
DEFUN (match_interface,
match_interface_cmd,
"match interface WORD",
MATCH_STR
"Match first hop interface of route\n"
"Interface name\n")
{
return ospf_route_match_add (vty, vty->index, "interface", argv[0]);
}
DEFUN (no_match_interface,
no_match_interface_cmd,
"no match interface",
NO_STR
MATCH_STR
"Match first hop interface of route\n")
{
if (argc == 0)
return ospf_route_match_delete (vty, vty->index, "interface", NULL);
return ospf_route_match_delete (vty, vty->index, "interface", argv[0]);
}
ALIAS (no_match_interface,
no_match_interface_val_cmd,
"no match interface WORD",
NO_STR
MATCH_STR
"Match first hop interface of route\n"
"Interface name\n")
DEFUN (set_metric,
set_metric_cmd,
"set metric <0-4294967295>",
SET_STR
"Metric value for destination routing protocol\n"
"Metric value\n")
{
return ospf_route_set_add (vty, vty->index, "metric", argv[0]);
}
DEFUN (no_set_metric,
no_set_metric_cmd,
"no set metric",
NO_STR
SET_STR
"Metric value for destination routing protocol\n")
{
if (argc == 0)
return ospf_route_set_delete (vty, vty->index, "metric", NULL);
return ospf_route_set_delete (vty, vty->index, "metric", argv[0]);
}
ALIAS (no_set_metric,
no_set_metric_val_cmd,
"no set metric <0-4294967295>",
NO_STR
SET_STR
"Metric value for destination routing protocol\n"
"Metric value\n")
DEFUN (set_metric_type,
set_metric_type_cmd,
"set metric-type (type-1|type-2)",
SET_STR
"Type of metric for destination routing protocol\n"
"OSPF[6] external type 1 metric\n"
"OSPF[6] external type 2 metric\n")
{
if (strcmp (argv[0], "1") == 0)
return ospf_route_set_add (vty, vty->index, "metric-type", "type-1");
if (strcmp (argv[0], "2") == 0)
return ospf_route_set_add (vty, vty->index, "metric-type", "type-2");
return ospf_route_set_add (vty, vty->index, "metric-type", argv[0]);
}
DEFUN (no_set_metric_type,
no_set_metric_type_cmd,
"no set metric-type",
NO_STR
SET_STR
"Type of metric for destination routing protocol\n")
{
if (argc == 0)
return ospf_route_set_delete (vty, vty->index, "metric-type", NULL);
return ospf_route_set_delete (vty, vty->index, "metric-type", argv[0]);
}
ALIAS (no_set_metric_type,
no_set_metric_type_val_cmd,
"no set metric-type (type-1|type-2)",
NO_STR
SET_STR
"Type of metric for destination routing protocol\n"
"OSPF[6] external type 1 metric\n"
"OSPF[6] external type 2 metric\n")
/* Route-map init */
void
ospf_route_map_init (void)
{
route_map_init ();
route_map_init_vty ();
route_map_add_hook (ospf_route_map_update);
route_map_delete_hook (ospf_route_map_update);
route_map_event_hook (ospf_route_map_event);
route_map_install_match (&route_match_ip_nexthop_cmd);
route_map_install_match (&route_match_ip_next_hop_prefix_list_cmd);
route_map_install_match (&route_match_ip_address_cmd);
route_map_install_match (&route_match_ip_address_prefix_list_cmd);
route_map_install_match (&route_match_interface_cmd);
route_map_install_set (&route_set_metric_cmd);
route_map_install_set (&route_set_metric_type_cmd);
install_element (RMAP_NODE, &match_ip_nexthop_cmd);
install_element (RMAP_NODE, &no_match_ip_nexthop_cmd);
install_element (RMAP_NODE, &no_match_ip_nexthop_val_cmd);
install_element (RMAP_NODE, &match_ip_next_hop_prefix_list_cmd);
install_element (RMAP_NODE, &no_match_ip_next_hop_prefix_list_cmd);
install_element (RMAP_NODE, &no_match_ip_next_hop_prefix_list_val_cmd);
install_element (RMAP_NODE, &match_ip_address_cmd);
install_element (RMAP_NODE, &no_match_ip_address_cmd);
install_element (RMAP_NODE, &no_match_ip_address_val_cmd);
install_element (RMAP_NODE, &match_ip_address_prefix_list_cmd);
install_element (RMAP_NODE, &no_match_ip_address_prefix_list_cmd);
install_element (RMAP_NODE, &no_match_ip_address_prefix_list_val_cmd);
install_element (RMAP_NODE, &match_interface_cmd);
install_element (RMAP_NODE, &no_match_interface_cmd);
install_element (RMAP_NODE, &no_match_interface_val_cmd);
install_element (RMAP_NODE, &set_metric_cmd);
install_element (RMAP_NODE, &no_set_metric_cmd);
install_element (RMAP_NODE, &no_set_metric_val_cmd);
install_element (RMAP_NODE, &set_metric_type_cmd);
install_element (RMAP_NODE, &no_set_metric_type_cmd);
install_element (RMAP_NODE, &no_set_metric_type_val_cmd);
}
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