isisd: add support to import routes from other protocols
Signed-off-by: Christian Franke <chris@opensourcerouting.org>
diff --git a/isisd/isis_routemap.c b/isisd/isis_routemap.c
index 84a14ac..3e0ab04 100644
--- a/isisd/isis_routemap.c
+++ b/isisd/isis_routemap.c
@@ -1,13 +1,10 @@
/*
- * IS-IS Rout(e)ing protocol - isis_routemap.c
+ * IS-IS Rout(e)ing protocol - isis_routemap.c
*
- * Copyright (C) 2001,2002 Sampo Saaristo
- * Tampere University of Technology
- * Institute of Communications Engineering
- *
+ * Copyright (C) 2013-2015 Christian Franke <chris@opensourcerouting.org>
*
* This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public Licenseas published by the Free
+ * under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*
@@ -20,18 +17,22 @@
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
+
#include <zebra.h>
-#include "thread.h"
+#include "command.h"
+#include "filter.h"
+#include "hash.h"
+#include "if.h"
#include "linklist.h"
-#include "vty.h"
#include "log.h"
#include "memory.h"
#include "prefix.h"
-#include "hash.h"
-#include "if.h"
-#include "table.h"
+#include "plist.h"
#include "routemap.h"
+#include "table.h"
+#include "thread.h"
+#include "vty.h"
#include "isis_constants.h"
#include "isis_common.h"
@@ -47,60 +48,518 @@
#include "isis_spf.h"
#include "isis_route.h"
#include "isis_zebra.h"
+#include "isis_routemap.h"
-extern struct isis *isis;
-
-/*
- * Prototypes.
- */
-void isis_route_map_upd(const char *);
-void isis_route_map_event(route_map_event_t, const char *);
-void isis_route_map_init(void);
-
-
-void
-isis_route_map_upd (const char *name)
+static route_map_result_t
+route_match_ip_address(void *rule, struct prefix *prefix,
+ route_map_object_t type, void *object)
{
- int i = 0;
+ struct access_list *alist;
- if (!isis)
- return;
+ if (type != RMAP_ISIS)
+ return RMAP_NOMATCH;
- for (i = 0; i <= ZEBRA_ROUTE_MAX; i++)
- {
- if (isis->rmap[i].name)
- isis->rmap[i].map = route_map_lookup_by_name (isis->rmap[i].name);
- else
- isis->rmap[i].map = NULL;
- }
- /* FIXME: do the address family sub-mode AF_INET6 here ? */
+ alist = access_list_lookup(AFI_IP, (char*)rule);
+ if (access_list_apply(alist, prefix) != FILTER_DENY)
+ return RMAP_MATCH;
+
+ return RMAP_NOMATCH;
}
-void
-isis_route_map_event (route_map_event_t event, const char *name)
+static void *
+route_match_ip_address_compile(const char *arg)
{
- int type;
-
- if (!isis)
- return;
-
- for (type = 0; type <= ZEBRA_ROUTE_MAX; type++)
- {
- if (isis->rmap[type].name && isis->rmap[type].map &&
- !strcmp (isis->rmap[type].name, name))
- {
- isis_distribute_list_update (type);
- }
- }
+ return XSTRDUP(MTYPE_ROUTE_MAP_COMPILED, arg);
}
-void
-isis_route_map_init (void)
+static void
+route_match_ip_address_free(void *rule)
{
- route_map_init ();
- route_map_init_vty ();
+ XFREE(MTYPE_ROUTE_MAP_COMPILED, rule);
+}
- route_map_add_hook (isis_route_map_upd);
- route_map_delete_hook (isis_route_map_upd);
- route_map_event_hook (isis_route_map_event);
+static 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
+};
+
+/* ------------------------------------------------------------*/
+
+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_ISIS)
+ return RMAP_NOMATCH;
+
+ plist = prefix_list_lookup(AFI_IP, (char*)rule);
+ if (prefix_list_apply(plist, prefix) != PREFIX_DENY)
+ return 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
+};
+
+/* ------------------------------------------------------------*/
+
+static route_map_result_t
+route_match_ipv6_address(void *rule, struct prefix *prefix,
+ route_map_object_t type, void *object)
+{
+ struct access_list *alist;
+
+ if (type != RMAP_ISIS)
+ return RMAP_NOMATCH;
+
+ alist = access_list_lookup(AFI_IP6, (char*)rule);
+ if (access_list_apply(alist, prefix) != FILTER_DENY)
+ return RMAP_MATCH;
+
+ return RMAP_NOMATCH;
+}
+
+static void *
+route_match_ipv6_address_compile(const char *arg)
+{
+ return XSTRDUP(MTYPE_ROUTE_MAP_COMPILED, arg);
+}
+
+static void
+route_match_ipv6_address_free(void *rule)
+{
+ XFREE(MTYPE_ROUTE_MAP_COMPILED, rule);
+}
+
+static struct route_map_rule_cmd route_match_ipv6_address_cmd =
+{
+ "ipv6 address",
+ route_match_ipv6_address,
+ route_match_ipv6_address_compile,
+ route_match_ipv6_address_free
+};
+
+/* ------------------------------------------------------------*/
+
+static route_map_result_t
+route_match_ipv6_address_prefix_list(void *rule, struct prefix *prefix,
+ route_map_object_t type, void *object)
+{
+ struct prefix_list *plist;
+
+ if (type != RMAP_ISIS)
+ return RMAP_NOMATCH;
+
+ plist = prefix_list_lookup(AFI_IP6, (char*)rule);
+ if (prefix_list_apply(plist, prefix) != PREFIX_DENY)
+ return RMAP_MATCH;
+
+ return RMAP_NOMATCH;
+}
+
+static void *
+route_match_ipv6_address_prefix_list_compile(const char *arg)
+{
+ return XSTRDUP (MTYPE_ROUTE_MAP_COMPILED, arg);
+}
+
+static void
+route_match_ipv6_address_prefix_list_free (void *rule)
+{
+ XFREE (MTYPE_ROUTE_MAP_COMPILED, rule);
+}
+
+struct route_map_rule_cmd route_match_ipv6_address_prefix_list_cmd =
+{
+ "ipv6 address prefix-list",
+ route_match_ipv6_address_prefix_list,
+ route_match_ipv6_address_prefix_list_compile,
+ route_match_ipv6_address_prefix_list_free
+};
+
+/* ------------------------------------------------------------*/
+
+static route_map_result_t
+route_set_metric(void *rule, struct prefix *prefix,
+ route_map_object_t type, void *object)
+{
+ uint32_t *metric;
+ struct isis_ext_info *info;
+
+ if (type == RMAP_ISIS)
+ {
+ metric = rule;
+ info = object;
+
+ info->metric = *metric;
+ }
+ return RMAP_OKAY;
+}
+
+static void *
+route_set_metric_compile(const char *arg)
+{
+ unsigned long metric;
+ char *endp;
+ uint32_t *ret;
+
+ metric = strtoul(arg, &endp, 10);
+ if (arg[0] == '\0' || *endp != '\0' || metric > MAX_WIDE_PATH_METRIC)
+ return NULL;
+
+ ret = XCALLOC(MTYPE_ROUTE_MAP_COMPILED, sizeof(ret));
+ *ret = metric;
+
+ return ret;
+}
+
+static void
+route_set_metric_free(void *rule)
+{
+ XFREE(MTYPE_ROUTE_MAP_COMPILED, rule);
+}
+
+static struct route_map_rule_cmd route_set_metric_cmd =
+{
+ "metric",
+ route_set_metric,
+ route_set_metric_compile,
+ route_set_metric_free
+};
+
+/* ------------------------------------------------------------*/
+
+static int
+isis_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
+isis_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
+isis_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;
+}
+
+static int
+isis_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;
+}
+
+/* ------------------------------------------------------------*/
+
+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 isis_route_match_add(vty, vty->index, "ip address", argv[0]);
+}
+
+DEFUN(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")
+{
+ if (argc == 0)
+ return isis_route_match_delete(vty, vty->index, "ip address", NULL);
+ return isis_route_match_delete(vty, vty->index, "ip address", argv[0]);
+}
+
+ALIAS(no_match_ip_address,
+ no_match_ip_address_cmd,
+ "no match ip address",
+ NO_STR
+ MATCH_STR
+ IP_STR
+ "Match address of route\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 isis_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 isis_route_match_delete (vty, vty->index, "ip address prefix-list", NULL);
+ return isis_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_ipv6_address,
+ match_ipv6_address_cmd,
+ "match ipv6 address WORD",
+ MATCH_STR
+ IPV6_STR
+ "Match IPv6 address of route\n"
+ "IPv6 access-list name\n")
+{
+ return isis_route_match_add(vty, vty->index, "ipv6 address", argv[0]);
+}
+
+DEFUN(no_match_ipv6_address,
+ no_match_ipv6_address_val_cmd,
+ "no match ipv6 address WORD",
+ NO_STR
+ MATCH_STR
+ IPV6_STR
+ "Match IPv6 address of route\n"
+ "IPv6 access-list name\n")
+{
+ if (argc == 0)
+ return isis_route_match_delete(vty, vty->index, "ipv6 address", NULL);
+ return isis_route_match_delete(vty, vty->index, "ipv6 address", argv[0]);
+}
+
+ALIAS(no_match_ipv6_address,
+ no_match_ipv6_address_cmd,
+ "no match ipv6 address",
+ NO_STR
+ MATCH_STR
+ IPV6_STR
+ "Match IPv6 address of route\n"
+);
+
+/* ------------------------------------------------------------*/
+
+DEFUN(match_ipv6_address_prefix_list,
+ match_ipv6_address_prefix_list_cmd,
+ "match ipv6 address prefix-list WORD",
+ MATCH_STR
+ IPV6_STR
+ "Match address of route\n"
+ "Match entries of prefix-lists\n"
+ "IP prefix-list name\n")
+{
+ return isis_route_match_add(vty, vty->index, "ipv6 address prefix-list", argv[0]);
+}
+
+DEFUN(no_match_ipv6_address_prefix_list,
+ no_match_ipv6_address_prefix_list_cmd,
+ "no match ipv6 address prefix-list",
+ NO_STR
+ MATCH_STR
+ IPV6_STR
+ "Match address of route\n"
+ "Match entries of prefix-lists\n")
+{
+ if (argc == 0)
+ return isis_route_match_delete (vty, vty->index, "ipv6 address prefix-list", NULL);
+ return isis_route_match_delete (vty, vty->index, "ipv6 address prefix-list", argv[0]);
+}
+
+ALIAS(no_match_ipv6_address_prefix_list,
+ no_match_ipv6_address_prefix_list_val_cmd,
+ "no match ipv6 address prefix-list WORD",
+ NO_STR
+ MATCH_STR
+ IPV6_STR
+ "Match address of route\n"
+ "Match entries of prefix-lists\n"
+ "IP prefix-list name\n"
+);
+
+/* ------------------------------------------------------------*/
+
+/* set metric already exists e.g. in the ospf routemap. vtysh doesn't cope well with different
+ * commands at the same node, therefore add set metric with the same 32-bit range as ospf and
+ * verify that the input is a valid isis metric */
+DEFUN(set_metric,
+ set_metric_cmd,
+ "set metric <0-4294967295>",
+ SET_STR
+ "Metric vale for destination routing protocol\n"
+ "Metric value\n")
+{
+ return isis_route_set_add(vty, vty->index, "metric", argv[0]);
+}
+
+DEFUN(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")
+{
+ if (argc == 0)
+ return isis_route_set_delete(vty, vty->index, "metric", NULL);
+ return isis_route_set_delete(vty, vty->index, "metric", argv[0]);
+}
+
+ALIAS(no_set_metric,
+ no_set_metric_cmd,
+ "no set metric",
+ NO_STR
+ SET_STR
+ "Metric vale for destination routing protocol\n"
+);
+
+void
+isis_route_map_init(void)
+{
+ route_map_init();
+ route_map_init_vty();
+
+ route_map_install_match(&route_match_ip_address_cmd);
+ install_element(RMAP_NODE, &match_ip_address_cmd);
+ install_element(RMAP_NODE, &no_match_ip_address_val_cmd);
+ install_element(RMAP_NODE, &no_match_ip_address_cmd);
+
+ route_map_install_match(&route_match_ip_address_prefix_list_cmd);
+ install_element(RMAP_NODE, &match_ip_address_prefix_list_cmd);
+ install_element(RMAP_NODE, &no_match_ip_address_prefix_list_val_cmd);
+ install_element(RMAP_NODE, &no_match_ip_address_prefix_list_cmd);
+
+ route_map_install_match(&route_match_ipv6_address_cmd);
+ install_element(RMAP_NODE, &match_ipv6_address_cmd);
+ install_element(RMAP_NODE, &no_match_ipv6_address_val_cmd);
+ install_element(RMAP_NODE, &no_match_ipv6_address_cmd);
+
+ route_map_install_match(&route_match_ipv6_address_prefix_list_cmd);
+ install_element(RMAP_NODE, &match_ipv6_address_prefix_list_cmd);
+ install_element(RMAP_NODE, &no_match_ipv6_address_prefix_list_val_cmd);
+ install_element(RMAP_NODE, &no_match_ipv6_address_prefix_list_cmd);
+
+ route_map_install_set(&route_set_metric_cmd);
+ install_element(RMAP_NODE, &set_metric_cmd);
+ install_element(RMAP_NODE, &no_set_metric_val_cmd);
+ install_element(RMAP_NODE, &no_set_metric_cmd);
}