/* Route map function.
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 "linklist.h"
#include "memory.h"
#include "vector.h"
#include "prefix.h"
#include "routemap.h"
#include "command.h"
#include "vty.h"
#include "log.h"
/* Vector for route match rules. */
static vector route_match_vec;
/* Vector for route set rules. */
static vector route_set_vec;
/* Route map rule. This rule has both `match' rule and `set' rule. */
struct route_map_rule
{
/* Rule type. */
struct route_map_rule_cmd *cmd;
/* For pretty printing. */
char *rule_str;
/* Pre-compiled match rule. */
void *value;
/* Linked list. */
struct route_map_rule *next;
struct route_map_rule *prev;
};
/* Making route map list. */
struct route_map_list
{
struct route_map *head;
struct route_map *tail;
void (*add_hook) (const char *);
void (*delete_hook) (const char *);
void (*event_hook) (route_map_event_t, const char *);
};
/* Master list of route map. */
static struct route_map_list route_map_master = { NULL, NULL, NULL, NULL };
static void
route_map_rule_delete (struct route_map_rule_list *,
struct route_map_rule *);
static void
route_map_index_delete (struct route_map_index *, int);
/* New route map allocation. Please note route map's name must be
specified. */
static struct route_map *
route_map_new (const char *name)
{
struct route_map *new;
new = XCALLOC (MTYPE_ROUTE_MAP, sizeof (struct route_map));
new->name = XSTRDUP (MTYPE_ROUTE_MAP_NAME, name);
return new;
}
/* Add new name to route_map. */
static struct route_map *
route_map_add (const char *name)
{
struct route_map *map;
struct route_map_list *list;
map = route_map_new (name);
list = &route_map_master;
map->next = NULL;
map->prev = list->tail;
if (list->tail)
list->tail->next = map;
else
list->head = map;
list->tail = map;
/* Execute hook. */
if (route_map_master.add_hook)
(*route_map_master.add_hook) (name);
return map;
}
/* Route map delete from list. */
static void
route_map_delete (struct route_map *map)
{
struct route_map_list *list;
struct route_map_index *index;
char *name;
while ((index = map->head) != NULL)
route_map_index_delete (index, 0);
name = map->name;
list = &route_map_master;
if (map->next)
map->next->prev = map->prev;
else
list->tail = map->prev;
if (map->prev)
map->prev->next = map->next;
else
list->head = map->next;
XFREE (MTYPE_ROUTE_MAP, map);
/* Execute deletion hook. */
if (route_map_master.delete_hook)
(*route_map_master.delete_hook) (name);
if (name)
XFREE (MTYPE_ROUTE_MAP_NAME, name);
}
/* Lookup route map by route map name string. */
struct route_map *
route_map_lookup_by_name (const char *name)
{
struct route_map *map;
for (map = route_map_master.head; map; map = map->next)
if (strcmp (map->name, name) == 0)
return map;
return NULL;
}
/* Lookup route map. If there isn't route map create one and return
it. */
static struct route_map *
route_map_get (const char *name)
{
struct route_map *map;
map = route_map_lookup_by_name (name);
if (map == NULL)
map = route_map_add (name);
return map;
}
/* Return route map's type string. */
static const char *
route_map_type_str (enum route_map_type type)
{
switch (type)
{
case RMAP_PERMIT:
return "permit";
break;
case RMAP_DENY:
return "deny";
break;
default:
return "";
break;
}
}
static int
route_map_empty (struct route_map *map)
{
if (map->head == NULL && map->tail == NULL)
return 1;
else
return 0;
}
/* show route-map */
static void
vty_show_route_map_entry (struct vty *vty, struct route_map *map)
{
struct route_map_index *index;
struct route_map_rule *rule;
/* Print the name of the protocol */
if (zlog_default)
vty_out (vty, "%s:%s", zlog_proto_names[zlog_default->protocol],
VTY_NEWLINE);
for (index = map->head; index; index = index->next)
{
vty_out (vty, "route-map %s, %s, sequence %d%s",
map->name, route_map_type_str (index->type),
index->pref, VTY_NEWLINE);
/* Description */
if (index->description)
vty_out (vty, " Description:%s %s%s", VTY_NEWLINE,
index->description, VTY_NEWLINE);
/* Match clauses */
vty_out (vty, " Match clauses:%s", VTY_NEWLINE);
for (rule = index->match_list.head; rule; rule = rule->next)
vty_out (vty, " %s %s%s",
rule->cmd->str, rule->rule_str, VTY_NEWLINE);
vty_out (vty, " Set clauses:%s", VTY_NEWLINE);
for (rule = index->set_list.head; rule; rule = rule->next)
vty_out (vty, " %s %s%s",
rule->cmd->str, rule->rule_str, VTY_NEWLINE);
/* Call clause */
vty_out (vty, " Call clause:%s", VTY_NEWLINE);
if (index->nextrm)
vty_out (vty, " Call %s%s", index->nextrm, VTY_NEWLINE);
/* Exit Policy */
vty_out (vty, " Action:%s", VTY_NEWLINE);
if (index->exitpolicy == RMAP_GOTO)
vty_out (vty, " Goto %d%s", index->nextpref, VTY_NEWLINE);
else if (index->exitpolicy == RMAP_NEXT)
vty_out (vty, " Continue to next entry%s", VTY_NEWLINE);
else if (index->exitpolicy == RMAP_EXIT)
vty_out (vty, " Exit routemap%s", VTY_NEWLINE);
}
}
static int
vty_show_route_map (struct vty *vty, const char *name)
{
struct route_map *map;
if (name)
{
map = route_map_lookup_by_name (name);
if (map)
{
vty_show_route_map_entry (vty, map);
return CMD_SUCCESS;
}
else
{
vty_out (vty, "%%route-map %s not found%s", name, VTY_NEWLINE);
return CMD_WARNING;
}
}
else
{
for (map = route_map_master.head; map; map = map->next)
vty_show_route_map_entry (vty, map);
}
return CMD_SUCCESS;
}
/* New route map allocation. Please note route map's name must be
specified. */
static struct route_map_index *
route_map_index_new (void)
{
struct route_map_index *new;
new = XCALLOC (MTYPE_ROUTE_MAP_INDEX, sizeof (struct route_map_index));
new->exitpolicy = RMAP_EXIT; /* Default to Cisco-style */
return new;
}
/* Free route map index. */
static void
route_map_index_delete (struct route_map_index *index, int notify)
{
struct route_map_rule *rule;
/* Free route match. */
while ((rule = index->match_list.head) != NULL)
route_map_rule_delete (&index->match_list, rule);
/* Free route set. */
while ((rule = index->set_list.head) != NULL)
route_map_rule_delete (&index->set_list, rule);
/* Remove index from route map list. */
if (index->next)
index->next->prev = index->prev;
else
index->map->tail = index->prev;
if (index->prev)
index->prev->next = index->next;
else
index->map->head = index->next;
/* Free 'char *nextrm' if not NULL */
if (index->nextrm)
XFREE (MTYPE_ROUTE_MAP_NAME, index->nextrm);
/* Execute event hook. */
if (route_map_master.event_hook && notify)
(*route_map_master.event_hook) (RMAP_EVENT_INDEX_DELETED,
index->map->name);
XFREE (MTYPE_ROUTE_MAP_INDEX, index);
}
/* Lookup index from route map. */
static struct route_map_index *
route_map_index_lookup (struct route_map *map, enum route_map_type type,
int pref)
{
struct route_map_index *index;
for (index = map->head; index; index = index->next)
if ((index->type == type || type == RMAP_ANY)
&& index->pref == pref)
return index;
return NULL;
}
/* Add new index to route map. */
static struct route_map_index *
route_map_index_add (struct route_map *map, enum route_map_type type,
int pref)
{
struct route_map_index *index;
struct route_map_index *point;
/* Allocate new route map inex. */
index = route_map_index_new ();
index->map = map;
index->type = type;
index->pref = pref;
/* Compare preference. */
for (point = map->head; point; point = point->next)
if (point->pref >= pref)
break;
if (map->head == NULL)
{
map->head = map->tail = index;
}
else if (point == NULL)
{
index->prev = map->tail;
map->tail->next = index;
map->tail = index;
}
else if (point == map->head)
{
index->next = map->head;
map->head->prev = index;
map->head = index;
}
else
{
index->next = point;
index->prev = point->prev;
if (point->prev)
point->prev->next = index;
point->prev = index;
}
/* Execute event hook. */
if (route_map_master.event_hook)
(*route_map_master.event_hook) (RMAP_EVENT_INDEX_ADDED,
map->name);
return index;
}
/* Get route map index. */
static struct route_map_index *
route_map_index_get (struct route_map *map, enum route_map_type type,
int pref)
{
struct route_map_index *index;
index = route_map_index_lookup (map, RMAP_ANY, pref);
if (index && index->type != type)
{
/* Delete index from route map. */
route_map_index_delete (index, 1);
index = NULL;
}
if (index == NULL)
index = route_map_index_add (map, type, pref);
return index;
}
/* New route map rule */
static struct route_map_rule *
route_map_rule_new (void)
{
struct route_map_rule *new;
new = XCALLOC (MTYPE_ROUTE_MAP_RULE, sizeof (struct route_map_rule));
return new;
}
/* Install rule command to the match list. */
void
route_map_install_match (struct route_map_rule_cmd *cmd)
{
vector_set (route_match_vec, cmd);
}
/* Install rule command to the set list. */
void
route_map_install_set (struct route_map_rule_cmd *cmd)
{
vector_set (route_set_vec, cmd);
}
/* Lookup rule command from match list. */
static struct route_map_rule_cmd *
route_map_lookup_match (const char *name)
{
unsigned int i;
struct route_map_rule_cmd *rule;
for (i = 0; i < vector_active (route_match_vec); i++)
if ((rule = vector_slot (route_match_vec, i)) != NULL)
if (strcmp (rule->str, name) == 0)
return rule;
return NULL;
}
/* Lookup rule command from set list. */
static struct route_map_rule_cmd *
route_map_lookup_set (const char *name)
{
unsigned int i;
struct route_map_rule_cmd *rule;
for (i = 0; i < vector_active (route_set_vec); i++)
if ((rule = vector_slot (route_set_vec, i)) != NULL)
if (strcmp (rule->str, name) == 0)
return rule;
return NULL;
}
/* Add match and set rule to rule list. */
static void
route_map_rule_add (struct route_map_rule_list *list,
struct route_map_rule *rule)
{
rule->next = NULL;
rule->prev = list->tail;
if (list->tail)
list->tail->next = rule;
else
list->head = rule;
list->tail = rule;
}
/* Delete rule from rule list. */
static void
route_map_rule_delete (struct route_map_rule_list *list,
struct route_map_rule *rule)
{
if (rule->cmd->func_free)
(*rule->cmd->func_free) (rule->value);
if (rule->rule_str)
XFREE (MTYPE_ROUTE_MAP_RULE_STR, rule->rule_str);
if (rule->next)
rule->next->prev = rule->prev;
else
list->tail = rule->prev;
if (rule->prev)
rule->prev->next = rule->next;
else
list->head = rule->next;
XFREE (MTYPE_ROUTE_MAP_RULE, rule);
}
/* strcmp wrapper function which don't crush even argument is NULL. */
static int
rulecmp (const char *dst, const char *src)
{
if (dst == NULL)
{
if (src == NULL)
return 0;
else
return 1;
}
else
{
if (src == NULL)
return 1;
else
return strcmp (dst, src);
}
return 1;
}
/* Add match statement to route map. */
int
route_map_add_match (struct route_map_index *index, const char *match_name,
const char *match_arg)
{
struct route_map_rule *rule;
struct route_map_rule *next;
struct route_map_rule_cmd *cmd;
void *compile;
int replaced = 0;
/* First lookup rule for add match statement. */
cmd = route_map_lookup_match (match_name);
if (cmd == NULL)
return RMAP_RULE_MISSING;
/* Next call compile function for this match statement. */
if (cmd->func_compile)
{
compile= (*cmd->func_compile)(match_arg);
if (compile == NULL)
return RMAP_COMPILE_ERROR;
}
else
compile = NULL;
/* If argument is completely same ignore it. */
for (rule = index->match_list.head; rule; rule = next)
{
next = rule->next;
if (rule->cmd == cmd)
{
route_map_rule_delete (&index->match_list, rule);
replaced = 1;
}
}
/* Add new route map match rule. */
rule = route_map_rule_new ();
rule->cmd = cmd;
rule->value = compile;
if (match_arg)
rule->rule_str = XSTRDUP (MTYPE_ROUTE_MAP_RULE_STR, match_arg);
else
rule->rule_str = NULL;
/* Add new route match rule to linked list. */
route_map_rule_add (&index->match_list, rule);
/* Execute event hook. */
if (route_map_master.event_hook)
(*route_map_master.event_hook) (replaced ?
RMAP_EVENT_MATCH_REPLACED:
RMAP_EVENT_MATCH_ADDED,
index->map->name);
return 0;
}
/* Delete specified route match rule. */
int
route_map_delete_match (struct route_map_index *index, const char *match_name,
const char *match_arg)
{
struct route_map_rule *rule;
struct route_map_rule_cmd *cmd;
cmd = route_map_lookup_match (match_name);
if (cmd == NULL)
return 1;
for (rule = index->match_list.head; rule; rule = rule->next)
if (rule->cmd == cmd &&
(rulecmp (rule->rule_str, match_arg) == 0 || match_arg == NULL))
{
route_map_rule_delete (&index->match_list, rule);
/* Execute event hook. */
if (route_map_master.event_hook)
(*route_map_master.event_hook) (RMAP_EVENT_MATCH_DELETED,
index->map->name);
return 0;
}
/* Can't find matched rule. */
return 1;
}
/* Add route-map set statement to the route map. */
int
route_map_add_set (struct route_map_index *index, const char *set_name,
const char *set_arg)
{
struct route_map_rule *rule;
struct route_map_rule *next;
struct route_map_rule_cmd *cmd;
void *compile;
int replaced = 0;
cmd = route_map_lookup_set (set_name);
if (cmd == NULL)
return RMAP_RULE_MISSING;
/* Next call compile function for this match statement. */
if (cmd->func_compile)
{
compile= (*cmd->func_compile)(set_arg);
if (compile == NULL)
return RMAP_COMPILE_ERROR;
}
else
compile = NULL;
/* Add by WJL. if old set command of same kind exist, delete it first
to ensure only one set command of same kind exist under a
route_map_index. */
for (rule = index->set_list.head; rule; rule = next)
{
next = rule->next;
if (rule->cmd == cmd)
{
route_map_rule_delete (&index->set_list, rule);
replaced = 1;
}
}
/* Add new route map match rule. */
rule = route_map_rule_new ();
rule->cmd = cmd;
rule->value = compile;
if (set_arg)
rule->rule_str = XSTRDUP (MTYPE_ROUTE_MAP_RULE_STR, set_arg);
else
rule->rule_str = NULL;
/* Add new route match rule to linked list. */
route_map_rule_add (&index->set_list, rule);
/* Execute event hook. */
if (route_map_master.event_hook)
(*route_map_master.event_hook) (replaced ?
RMAP_EVENT_SET_REPLACED:
RMAP_EVENT_SET_ADDED,
index->map->name);
return 0;
}
/* Delete route map set rule. */
int
route_map_delete_set (struct route_map_index *index, const char *set_name,
const char *set_arg)
{
struct route_map_rule *rule;
struct route_map_rule_cmd *cmd;
cmd = route_map_lookup_set (set_name);
if (cmd == NULL)
return 1;
for (rule = index->set_list.head; rule; rule = rule->next)
if ((rule->cmd == cmd) &&
(rulecmp (rule->rule_str, set_arg) == 0 || set_arg == NULL))
{
route_map_rule_delete (&index->set_list, rule);
/* Execute event hook. */
if (route_map_master.event_hook)
(*route_map_master.event_hook) (RMAP_EVENT_SET_DELETED,
index->map->name);
return 0;
}
/* Can't find matched rule. */
return 1;
}
/* Apply route map's each index to the object.
The matrix for a route-map looks like this:
(note, this includes the description for the "NEXT"
and "GOTO" frobs now
Match | No Match
|
permit action | cont
|
------------------+---------------
|
deny deny | cont
|
action)
-Apply Set statements, accept route
-If Call statement is present jump to the specified route-map, if it
denies the route we finish.
-If NEXT is specified, goto NEXT statement
-If GOTO is specified, goto the first clause where pref > nextpref
-If nothing is specified, do as Cisco and finish
deny)
-Route is denied by route-map.
cont)
-Goto Next index
If we get no matches after we've processed all updates, then the route
is dropped too.
Some notes on the new "CALL", "NEXT" and "GOTO"
call WORD - If this clause is matched, then the set statements
are executed and then we jump to route-map 'WORD'. If
this route-map denies the route, we finish, in other case we
do whatever the exit policy (EXIT, NEXT or GOTO) tells.
on-match next - If this clause is matched, then the set statements
are executed and then we drop through to the next clause
on-match goto n - If this clause is matched, then the set statments
are executed and then we goto the nth clause, or the
first clause greater than this. In order to ensure
route-maps *always* exit, you cannot jump backwards.
Sorry ;)
We need to make sure our route-map processing matches the above
*/
static route_map_result_t
route_map_apply_match (struct route_map_rule_list *match_list,
struct prefix *prefix, route_map_object_t type,
void *object)
{
route_map_result_t ret = RMAP_NOMATCH;
struct route_map_rule *match;
/* Check all match rule and if there is no match rule, go to the
set statement. */
if (!match_list->head)
ret = RMAP_MATCH;
else
{
for (match = match_list->head; match; match = match->next)
{
/* Try each match statement in turn, If any do not return
RMAP_MATCH, return, otherwise continue on to next match
statement. All match statements must match for end-result
to be a match. */
ret = (*match->cmd->func_apply) (match->value, prefix,
type, object);
if (ret != RMAP_MATCH)
return ret;
}
}
return ret;
}
/* Apply route map to the object. */
route_map_result_t
route_map_apply (struct route_map *map, struct prefix *prefix,
route_map_object_t type, void *object)
{
static int recursion = 0;
int ret = 0;
struct route_map_index *index;
struct route_map_rule *set;
if (recursion > RMAP_RECURSION_LIMIT)
{
zlog (NULL, LOG_WARNING,
"route-map recursion limit (%d) reached, discarding route",
RMAP_RECURSION_LIMIT);
recursion = 0;
return RMAP_DENYMATCH;
}
if (map == NULL)
return RMAP_DENYMATCH;
for (index = map->head; index; index = index->next)
{
/* Apply this index. */
ret = route_map_apply_match (&index->match_list, prefix, type, object);
/* Now we apply the matrix from above */
if (ret == RMAP_NOMATCH)
/* 'cont' from matrix - continue to next route-map sequence */
continue;
else if (ret == RMAP_MATCH)
{
if (index->type == RMAP_PERMIT)
/* 'action' */
{
/* permit+match must execute sets */
for (set = index->set_list.head; set; set = set->next)
ret = (*set->cmd->func_apply) (set->value, prefix,
type, object);
/* Call another route-map if available */
if (index->nextrm)
{
struct route_map *nextrm =
route_map_lookup_by_name (index->nextrm);
if (nextrm) /* Target route-map found, jump to it */
{
recursion++;
ret = route_map_apply (nextrm, prefix, type, object);
recursion--;
}
/* If nextrm returned 'deny', finish. */
if (ret == RMAP_DENYMATCH)
return ret;
}
switch (index->exitpolicy)
{
case RMAP_EXIT:
return ret;
case RMAP_NEXT:
continue;
case RMAP_GOTO:
{
/* Find the next clause to jump to */
struct route_map_index *next = index->next;
int nextpref = index->nextpref;
while (next && next->pref < nextpref)
{
index = next;
next = next->next;
}
if (next == NULL)
{
/* No clauses match! */
return ret;
}
}
}
}
else if (index->type == RMAP_DENY)
/* 'deny' */
{
return RMAP_DENYMATCH;
}
}
}
/* Finally route-map does not match at all. */
return RMAP_DENYMATCH;
}
void
route_map_add_hook (void (*func) (const char *))
{
route_map_master.add_hook = func;
}
void
route_map_delete_hook (void (*func) (const char *))
{
route_map_master.delete_hook = func;
}
void
route_map_event_hook (void (*func) (route_map_event_t, const char *))
{
route_map_master.event_hook = func;
}
void
route_map_init (void)
{
/* Make vector for match and set. */
route_match_vec = vector_init (1);
route_set_vec = vector_init (1);
}
void
route_map_finish (void)
{
vector_free (route_match_vec);
route_match_vec = NULL;
vector_free (route_set_vec);
route_set_vec = NULL;
/* cleanup route_map */
while (route_map_master.head)
route_map_delete (route_map_master.head);
}
/* VTY related functions. */
DEFUN (route_map,
route_map_cmd,
"route-map WORD (deny|permit) <1-65535>",
"Create route-map or enter route-map command mode\n"
"Route map tag\n"
"Route map denies set operations\n"
"Route map permits set operations\n"
"Sequence to insert to/delete from existing route-map entry\n")
{
int permit;
unsigned long pref;
struct route_map *map;
struct route_map_index *index;
char *endptr = NULL;
/* Permit check. */
if (strncmp (argv[1], "permit", strlen (argv[1])) == 0)
permit = RMAP_PERMIT;
else if (strncmp (argv[1], "deny", strlen (argv[1])) == 0)
permit = RMAP_DENY;
else
{
vty_out (vty, "the third field must be [permit|deny]%s", VTY_NEWLINE);
return CMD_WARNING;
}
/* Preference check. */
pref = strtoul (argv[2], &endptr, 10);
if (pref == ULONG_MAX || *endptr != '\0')
{
vty_out (vty, "the fourth field must be positive integer%s",
VTY_NEWLINE);
return CMD_WARNING;
}
if (pref == 0 || pref > 65535)
{
vty_out (vty, "the fourth field must be <1-65535>%s", VTY_NEWLINE);
return CMD_WARNING;
}
/* Get route map. */
map = route_map_get (argv[0]);
index = route_map_index_get (map, permit, pref);
vty->index = index;
vty->node = RMAP_NODE;
return CMD_SUCCESS;
}
DEFUN (no_route_map_all,
no_route_map_all_cmd,
"no route-map WORD",
NO_STR
"Create route-map or enter route-map command mode\n"
"Route map tag\n")
{
struct route_map *map;
map = route_map_lookup_by_name (argv[0]);
if (map == NULL)
{
vty_out (vty, "%% Could not find route-map %s%s",
argv[0], VTY_NEWLINE);
return CMD_WARNING;
}
route_map_delete (map);
return CMD_SUCCESS;
}
DEFUN (no_route_map,
no_route_map_cmd,
"no route-map WORD (deny|permit) <1-65535>",
NO_STR
"Create route-map or enter route-map command mode\n"
"Route map tag\n"
"Route map denies set operations\n"
"Route map permits set operations\n"
"Sequence to insert to/delete from existing route-map entry\n")
{
int permit;
unsigned long pref;
struct route_map *map;
struct route_map_index *index;
char *endptr = NULL;
/* Permit check. */
if (strncmp (argv[1], "permit", strlen (argv[1])) == 0)
permit = RMAP_PERMIT;
else if (strncmp (argv[1], "deny", strlen (argv[1])) == 0)
permit = RMAP_DENY;
else
{
vty_out (vty, "the third field must be [permit|deny]%s", VTY_NEWLINE);
return CMD_WARNING;
}
/* Preference. */
pref = strtoul (argv[2], &endptr, 10);
if (pref == ULONG_MAX || *endptr != '\0')
{
vty_out (vty, "the fourth field must be positive integer%s",
VTY_NEWLINE);
return CMD_WARNING;
}
if (pref == 0 || pref > 65535)
{
vty_out (vty, "the fourth field must be <1-65535>%s", VTY_NEWLINE);
return CMD_WARNING;
}
/* Existence check. */
map = route_map_lookup_by_name (argv[0]);
if (map == NULL)
{
vty_out (vty, "%% Could not find route-map %s%s",
argv[0], VTY_NEWLINE);
return CMD_WARNING;
}
/* Lookup route map index. */
index = route_map_index_lookup (map, permit, pref);
if (index == NULL)
{
vty_out (vty, "%% Could not find route-map entry %s %s%s",
argv[0], argv[2], VTY_NEWLINE);
return CMD_WARNING;
}
/* Delete index from route map. */
route_map_index_delete (index, 1);
/* If this route rule is the last one, delete route map itself. */
if (route_map_empty (map))
route_map_delete (map);
return CMD_SUCCESS;
}
DEFUN (rmap_onmatch_next,
rmap_onmatch_next_cmd,
"on-match next",
"Exit policy on matches\n"
"Next clause\n")
{
struct route_map_index *index;
index = vty->index;
if (index)
index->exitpolicy = RMAP_NEXT;
return CMD_SUCCESS;
}
DEFUN (no_rmap_onmatch_next,
no_rmap_onmatch_next_cmd,
"no on-match next",
NO_STR
"Exit policy on matches\n"
"Next clause\n")
{
struct route_map_index *index;
index = vty->index;
if (index)
index->exitpolicy = RMAP_EXIT;
return CMD_SUCCESS;
}
DEFUN (rmap_onmatch_goto,
rmap_onmatch_goto_cmd,
"on-match goto <1-65535>",
"Exit policy on matches\n"
"Goto Clause number\n"
"Number\n")
{
struct route_map_index *index = vty->index;
int d = 0;
if (index)
{
if (argc == 1 && argv[0])
VTY_GET_INTEGER_RANGE("route-map index", d, argv[0], 1, 65536);
else
d = index->pref + 1;
if (d <= index->pref)
{
/* Can't allow you to do that, Dave */
vty_out (vty, "can't jump backwards in route-maps%s",
VTY_NEWLINE);
return CMD_WARNING;
}
else
{
index->exitpolicy = RMAP_GOTO;
index->nextpref = d;
}
}
return CMD_SUCCESS;
}
DEFUN (no_rmap_onmatch_goto,
no_rmap_onmatch_goto_cmd,
"no on-match goto",
NO_STR
"Exit policy on matches\n"
"Goto Clause number\n")
{
struct route_map_index *index;
index = vty->index;
if (index)
index->exitpolicy = RMAP_EXIT;
return CMD_SUCCESS;
}
/* Cisco/GNU Zebra compatible ALIASes for on-match next */
ALIAS (rmap_onmatch_goto,
rmap_continue_cmd,
"continue",
"Continue on a different entry within the route-map\n")
ALIAS (no_rmap_onmatch_goto,
no_rmap_continue_cmd,
"no continue",
NO_STR
"Continue on a different entry within the route-map\n")
/* GNU Zebra compatible */
ALIAS (rmap_onmatch_goto,
rmap_continue_seq_cmd,
"continue <1-65535>",
"Continue on a different entry within the route-map\n"
"Route-map entry sequence number\n")
ALIAS (no_rmap_onmatch_goto,
no_rmap_continue_seq,
"no continue <1-65535>",
NO_STR
"Continue on a different entry within the route-map\n"
"Route-map entry sequence number\n")
DEFUN (rmap_show_name,
rmap_show_name_cmd,
"show route-map [WORD]",
SHOW_STR
"route-map information\n"
"route-map name\n")
{
const char *name = NULL;
if (argc)
name = argv[0];
return vty_show_route_map (vty, name);
}
ALIAS (rmap_onmatch_goto,
rmap_continue_index_cmd,
"continue <1-65536>",
"Exit policy on matches\n"
"Goto Clause number\n")
DEFUN (rmap_call,
rmap_call_cmd,
"call WORD",
"Jump to another Route-Map after match+set\n"
"Target route-map name\n")
{
struct route_map_index *index;
index = vty->index;
if (index)
{
if (index->nextrm)
XFREE (MTYPE_ROUTE_MAP_NAME, index->nextrm);
index->nextrm = XSTRDUP (MTYPE_ROUTE_MAP_NAME, argv[0]);
}
return CMD_SUCCESS;
}
DEFUN (no_rmap_call,
no_rmap_call_cmd,
"no call",
NO_STR
"Jump to another Route-Map after match+set\n")
{
struct route_map_index *index;
index = vty->index;
if (index->nextrm)
{
XFREE (MTYPE_ROUTE_MAP_NAME, index->nextrm);
index->nextrm = NULL;
}
return CMD_SUCCESS;
}
DEFUN (rmap_description,
rmap_description_cmd,
"description .LINE",
"Route-map comment\n"
"Comment describing this route-map rule\n")
{
struct route_map_index *index;
index = vty->index;
if (index)
{
if (index->description)
XFREE (MTYPE_TMP, index->description);
index->description = argv_concat (argv, argc, 0);
}
return CMD_SUCCESS;
}
DEFUN (no_rmap_description,
no_rmap_description_cmd,
"no description",
NO_STR
"Route-map comment\n")
{
struct route_map_index *index;
index = vty->index;
if (index)
{
if (index->description)
XFREE (MTYPE_TMP, index->description);
index->description = NULL;
}
return CMD_SUCCESS;
}
/* Configuration write function. */
static int
route_map_config_write (struct vty *vty)
{
struct route_map *map;
struct route_map_index *index;
struct route_map_rule *rule;
int first = 1;
int write = 0;
for (map = route_map_master.head; map; map = map->next)
for (index = map->head; index; index = index->next)
{
if (!first)
vty_out (vty, "!%s", VTY_NEWLINE);
else
first = 0;
vty_out (vty, "route-map %s %s %d%s",
map->name,
route_map_type_str (index->type),
index->pref, VTY_NEWLINE);
if (index->description)
vty_out (vty, " description %s%s", index->description, VTY_NEWLINE);
for (rule = index->match_list.head; rule; rule = rule->next)
vty_out (vty, " match %s %s%s", rule->cmd->str,
rule->rule_str ? rule->rule_str : "",
VTY_NEWLINE);
for (rule = index->set_list.head; rule; rule = rule->next)
vty_out (vty, " set %s %s%s", rule->cmd->str,
rule->rule_str ? rule->rule_str : "",
VTY_NEWLINE);
if (index->nextrm)
vty_out (vty, " call %s%s", index->nextrm, VTY_NEWLINE);
if (index->exitpolicy == RMAP_GOTO)
vty_out (vty, " on-match goto %d%s", index->nextpref, VTY_NEWLINE);
if (index->exitpolicy == RMAP_NEXT)
vty_out (vty," on-match next%s", VTY_NEWLINE);
write++;
}
return write;
}
/* Route map node structure. */
static struct cmd_node rmap_node =
{
RMAP_NODE,
"%s(config-route-map)# ",
1
};
/* Initialization of route map vector. */
void
route_map_init_vty (void)
{
/* Install route map top node. */
install_node (&rmap_node, route_map_config_write);
/* Install route map commands. */
install_default (RMAP_NODE);
install_element (CONFIG_NODE, &route_map_cmd);
install_element (CONFIG_NODE, &no_route_map_cmd);
install_element (CONFIG_NODE, &no_route_map_all_cmd);
/* Install the on-match stuff */
install_element (RMAP_NODE, &route_map_cmd);
install_element (RMAP_NODE, &rmap_onmatch_next_cmd);
install_element (RMAP_NODE, &no_rmap_onmatch_next_cmd);
install_element (RMAP_NODE, &rmap_onmatch_goto_cmd);
install_element (RMAP_NODE, &no_rmap_onmatch_goto_cmd);
/* Install the continue stuff (ALIAS of on-match). */
install_element (RMAP_NODE, &rmap_continue_cmd);
install_element (RMAP_NODE, &no_rmap_continue_cmd);
install_element (RMAP_NODE, &rmap_continue_index_cmd);
/* Install the call stuff. */
install_element (RMAP_NODE, &rmap_call_cmd);
install_element (RMAP_NODE, &no_rmap_call_cmd);
/* Install description commands. */
install_element (RMAP_NODE, &rmap_description_cmd);
install_element (RMAP_NODE, &no_rmap_description_cmd);
/* Install show command */
install_element (ENABLE_NODE, &rmap_show_name_cmd);
}
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