Annotation of embedaddon/quagga/lib/routemap.h, revision 1.1
1.1 ! misho 1: /* Route map function.
! 2: * Copyright (C) 1998 Kunihiro Ishiguro
! 3: *
! 4: * This file is part of GNU Zebra.
! 5: *
! 6: * GNU Zebra is free software; you can redistribute it and/or modify it
! 7: * under the terms of the GNU General Public License as published by the
! 8: * Free Software Foundation; either version 2, or (at your option) any
! 9: * later version.
! 10: *
! 11: * GNU Zebra is distributed in the hope that it will be useful, but
! 12: * WITHOUT ANY WARRANTY; without even the implied warranty of
! 13: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
! 14: * General Public License for more details.
! 15: *
! 16: * You should have received a copy of the GNU General Public License
! 17: * along with GNU Zebra; see the file COPYING. If not, write to the Free
! 18: * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
! 19: * 02111-1307, USA.
! 20: */
! 21:
! 22: #ifndef _ZEBRA_ROUTEMAP_H
! 23: #define _ZEBRA_ROUTEMAP_H
! 24:
! 25: /* Route map's type. */
! 26: enum route_map_type
! 27: {
! 28: RMAP_PERMIT,
! 29: RMAP_DENY,
! 30: RMAP_ANY
! 31: };
! 32:
! 33: typedef enum
! 34: {
! 35: RMAP_MATCH,
! 36: RMAP_DENYMATCH,
! 37: RMAP_NOMATCH,
! 38: RMAP_ERROR,
! 39: RMAP_OKAY
! 40: } route_map_result_t;
! 41:
! 42: typedef enum
! 43: {
! 44: RMAP_RIP,
! 45: RMAP_RIPNG,
! 46: RMAP_OSPF,
! 47: RMAP_OSPF6,
! 48: RMAP_BGP,
! 49: RMAP_ZEBRA
! 50: } route_map_object_t;
! 51:
! 52: typedef enum
! 53: {
! 54: RMAP_EXIT,
! 55: RMAP_GOTO,
! 56: RMAP_NEXT
! 57: } route_map_end_t;
! 58:
! 59: typedef enum
! 60: {
! 61: RMAP_EVENT_SET_ADDED,
! 62: RMAP_EVENT_SET_DELETED,
! 63: RMAP_EVENT_SET_REPLACED,
! 64: RMAP_EVENT_MATCH_ADDED,
! 65: RMAP_EVENT_MATCH_DELETED,
! 66: RMAP_EVENT_MATCH_REPLACED,
! 67: RMAP_EVENT_INDEX_ADDED,
! 68: RMAP_EVENT_INDEX_DELETED
! 69: } route_map_event_t;
! 70:
! 71: /* Depth limit in RMAP recursion using RMAP_CALL. */
! 72: #define RMAP_RECURSION_LIMIT 10
! 73:
! 74: /* Route map rule structure for matching and setting. */
! 75: struct route_map_rule_cmd
! 76: {
! 77: /* Route map rule name (e.g. as-path, metric) */
! 78: const char *str;
! 79:
! 80: /* Function for value set or match. */
! 81: route_map_result_t (*func_apply)(void *, struct prefix *,
! 82: route_map_object_t, void *);
! 83:
! 84: /* Compile argument and return result as void *. */
! 85: void *(*func_compile)(const char *);
! 86:
! 87: /* Free allocated value by func_compile (). */
! 88: void (*func_free)(void *);
! 89: };
! 90:
! 91: /* Route map apply error. */
! 92: enum
! 93: {
! 94: /* Route map rule is missing. */
! 95: RMAP_RULE_MISSING = 1,
! 96:
! 97: /* Route map rule can't compile */
! 98: RMAP_COMPILE_ERROR
! 99: };
! 100:
! 101: /* Route map rule list. */
! 102: struct route_map_rule_list
! 103: {
! 104: struct route_map_rule *head;
! 105: struct route_map_rule *tail;
! 106: };
! 107:
! 108: /* Route map index structure. */
! 109: struct route_map_index
! 110: {
! 111: struct route_map *map;
! 112: char *description;
! 113:
! 114: /* Preference of this route map rule. */
! 115: int pref;
! 116:
! 117: /* Route map type permit or deny. */
! 118: enum route_map_type type;
! 119:
! 120: /* Do we follow old rules, or hop forward? */
! 121: route_map_end_t exitpolicy;
! 122:
! 123: /* If we're using "GOTO", to where do we go? */
! 124: int nextpref;
! 125:
! 126: /* If we're using "CALL", to which route-map do ew go? */
! 127: char *nextrm;
! 128:
! 129: /* Matching rule list. */
! 130: struct route_map_rule_list match_list;
! 131: struct route_map_rule_list set_list;
! 132:
! 133: /* Make linked list. */
! 134: struct route_map_index *next;
! 135: struct route_map_index *prev;
! 136: };
! 137:
! 138: /* Route map list structure. */
! 139: struct route_map
! 140: {
! 141: /* Name of route map. */
! 142: char *name;
! 143:
! 144: /* Route map's rule. */
! 145: struct route_map_index *head;
! 146: struct route_map_index *tail;
! 147:
! 148: /* Make linked list. */
! 149: struct route_map *next;
! 150: struct route_map *prev;
! 151: };
! 152:
! 153: /* Prototypes. */
! 154: extern void route_map_init (void);
! 155: extern void route_map_init_vty (void);
! 156: extern void route_map_finish (void);
! 157:
! 158: /* Add match statement to route map. */
! 159: extern int route_map_add_match (struct route_map_index *index,
! 160: const char *match_name,
! 161: const char *match_arg);
! 162:
! 163: /* Delete specified route match rule. */
! 164: extern int route_map_delete_match (struct route_map_index *index,
! 165: const char *match_name,
! 166: const char *match_arg);
! 167:
! 168: /* Add route-map set statement to the route map. */
! 169: extern int route_map_add_set (struct route_map_index *index,
! 170: const char *set_name,
! 171: const char *set_arg);
! 172:
! 173: /* Delete route map set rule. */
! 174: extern int route_map_delete_set (struct route_map_index *index,
! 175: const char *set_name,
! 176: const char *set_arg);
! 177:
! 178: /* Install rule command to the match list. */
! 179: extern void route_map_install_match (struct route_map_rule_cmd *cmd);
! 180:
! 181: /* Install rule command to the set list. */
! 182: extern void route_map_install_set (struct route_map_rule_cmd *cmd);
! 183:
! 184: /* Lookup route map by name. */
! 185: extern struct route_map * route_map_lookup_by_name (const char *name);
! 186:
! 187: /* Apply route map to the object. */
! 188: extern route_map_result_t route_map_apply (struct route_map *map,
! 189: struct prefix *,
! 190: route_map_object_t object_type,
! 191: void *object);
! 192:
! 193: extern void route_map_add_hook (void (*func) (const char *));
! 194: extern void route_map_delete_hook (void (*func) (const char *));
! 195: extern void route_map_event_hook (void (*func) (route_map_event_t, const char *));
! 196:
! 197: #endif /* _ZEBRA_ROUTEMAP_H */
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