Adding upstream version 8.4.4.upstream/8.4.4upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 278 insertions, 0 deletions

diff --git a/isisd/isis_routemap.c b/isisd/isis_routemap.c
new file mode 100644
index 0000000..626e399
--- /dev/null
+++ b/isisd/isis_routemap.c
@@ -0,0 +1,278 @@
+/*
+ * IS-IS Rout(e)ing protocol - isis_routemap.c
+ *
+ * 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 License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * This program 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 "filter.h"
+#include "hash.h"
+#include "if.h"
+#include "linklist.h"
+#include "log.h"
+#include "memory.h"
+#include "prefix.h"
+#include "plist.h"
+#include "routemap.h"
+#include "table.h"
+#include "thread.h"
+#include "vty.h"
+
+#include "isis_constants.h"
+#include "isis_common.h"
+#include "isis_flags.h"
+#include "isisd.h"
+#include "isis_misc.h"
+#include "isis_adjacency.h"
+#include "isis_circuit.h"
+#include "isis_pdu.h"
+#include "isis_lsp.h"
+#include "isis_spf.h"
+#include "isis_route.h"
+#include "isis_zebra.h"
+#include "isis_routemap.h"
+
+static enum route_map_cmd_result_t
+route_match_ip_address(void *rule, const struct prefix *prefix, void *object)
+{
+	struct access_list *alist;
+
+	alist = access_list_lookup(AFI_IP, (char *)rule);
+	if (access_list_apply(alist, prefix) != FILTER_DENY)
+		return RMAP_MATCH;
+
+	return RMAP_NOMATCH;
+}
+
+static void *route_match_ip_address_compile(const char *arg)
+{
+	return XSTRDUP(MTYPE_ROUTE_MAP_COMPILED, arg);
+}
+
+static void route_match_ip_address_free(void *rule)
+{
+	XFREE(MTYPE_ROUTE_MAP_COMPILED, rule);
+}
+
+static const 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 enum route_map_cmd_result_t
+route_match_ip_address_prefix_list(void *rule, const struct prefix *prefix,
+				   void *object)
+{
+	struct prefix_list *plist;
+
+	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);
+}
+
+static const 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 tag TAG' */
+/* Match function return 1 if match is success else return zero. */
+static enum route_map_cmd_result_t
+route_match_tag(void *rule, const struct prefix *p, void *object)
+{
+	route_tag_t *tag;
+	struct isis_ext_info *info;
+	route_tag_t info_tag;
+
+	tag = rule;
+	info = object;
+
+	info_tag = info->tag;
+	if (info_tag == *tag)
+		return RMAP_MATCH;
+	else
+		return RMAP_NOMATCH;
+}
+
+/* Route map commands for tag matching. */
+static const struct route_map_rule_cmd route_match_tag_cmd = {
+	"tag",
+	route_match_tag,
+	route_map_rule_tag_compile,
+	route_map_rule_tag_free,
+};
+
+/* ------------------------------------------------------------*/
+
+static enum route_map_cmd_result_t
+route_match_ipv6_address(void *rule, const struct prefix *prefix, void *object)
+{
+	struct access_list *alist;
+
+	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 const 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 enum route_map_cmd_result_t
+route_match_ipv6_address_prefix_list(void *rule, const struct prefix *prefix,
+				     void *object)
+{
+	struct prefix_list *plist;
+
+	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);
+}
+
+static const 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 enum route_map_cmd_result_t
+route_set_metric(void *rule, const struct prefix *prefix, void *object)
+{
+	uint32_t *metric;
+	struct isis_ext_info *info;
+
+	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 const struct route_map_rule_cmd route_set_metric_cmd = {
+	"metric",
+	route_set_metric,
+	route_set_metric_compile,
+	route_set_metric_free
+};
+
+void isis_route_map_init(void)
+{
+	route_map_init();
+
+	route_map_match_ip_address_hook(generic_match_add);
+	route_map_no_match_ip_address_hook(generic_match_delete);
+
+	route_map_match_ip_address_prefix_list_hook(generic_match_add);
+	route_map_no_match_ip_address_prefix_list_hook(generic_match_delete);
+
+	route_map_match_ipv6_address_hook(generic_match_add);
+	route_map_no_match_ipv6_address_hook(generic_match_delete);
+
+	route_map_match_ipv6_address_prefix_list_hook(generic_match_add);
+	route_map_no_match_ipv6_address_prefix_list_hook(generic_match_delete);
+
+	route_map_match_tag_hook(generic_match_add);
+	route_map_no_match_tag_hook(generic_match_delete);
+
+	route_map_set_metric_hook(generic_set_add);
+	route_map_no_set_metric_hook(generic_set_delete);
+
+	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_ipv6_address_cmd);
+	route_map_install_match(&route_match_ipv6_address_prefix_list_cmd);
+	route_map_install_match(&route_match_tag_cmd);
+	route_map_install_set(&route_set_metric_cmd);
+}