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Annotation of embedaddon/quagga/bgpd/bgp_clist.h, revision 1.1.1.1

1.1       misho       1: /* BGP Community list.
                      2:    Copyright (C) 1999 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: #ifndef _QUAGGA_BGP_CLIST_H
                     22: #define _QUAGGA_BGP_CLIST_H
                     23: 
                     24: /* Master Community-list. */
                     25: #define COMMUNITY_LIST_MASTER          0
                     26: #define EXTCOMMUNITY_LIST_MASTER       1
                     27: 
                     28: /* Community-list deny and permit.  */
                     29: #define COMMUNITY_DENY                 0
                     30: #define COMMUNITY_PERMIT               1
                     31: 
                     32: /* Number and string based community-list name.  */
                     33: #define COMMUNITY_LIST_STRING          0
                     34: #define COMMUNITY_LIST_NUMBER          1
                     35: 
                     36: /* Community-list entry types.  */
                     37: #define COMMUNITY_LIST_STANDARD        0 /* Standard community-list.  */
                     38: #define COMMUNITY_LIST_EXPANDED        1 /* Expanded community-list.  */
                     39: #define EXTCOMMUNITY_LIST_STANDARD     2 /* Standard extcommunity-list.  */
                     40: #define EXTCOMMUNITY_LIST_EXPANDED     3 /* Expanded extcommunity-list.  */
                     41: 
                     42: /* Community-list.  */
                     43: struct community_list
                     44: {
                     45:   /* Name of the community-list.  */
                     46:   char *name;
                     47: 
                     48:   /* String or number.  */
                     49:   int sort;
                     50: 
                     51:   /* Link to upper list.  */
                     52:   struct community_list_list *parent;
                     53: 
                     54:   /* Linked list for other community-list.  */
                     55:   struct community_list *next;
                     56:   struct community_list *prev;
                     57: 
                     58:   /* Community-list entry in this community-list.  */
                     59:   struct community_entry *head;
                     60:   struct community_entry *tail;
                     61: };
                     62: 
                     63: /* Each entry in community-list.  */
                     64: struct community_entry
                     65: {
                     66:   struct community_entry *next;
                     67:   struct community_entry *prev;
                     68: 
                     69:   /* Permit or deny.  */
                     70:   u_char direct;
                     71: 
                     72:   /* Standard or expanded.  */
                     73:   u_char style;
                     74: 
                     75:   /* Any match.  */
                     76:   u_char any;
                     77: 
                     78:   /* Community structure.  */
                     79:   union
                     80:   {
                     81:     struct community *com;
                     82:     struct ecommunity *ecom;
                     83:   } u;
                     84: 
                     85:   /* Configuration string.  */
                     86:   char *config;
                     87: 
                     88:   /* Expanded community-list regular expression.  */
                     89:   regex_t *reg;
                     90: };
                     91: 
                     92: /* Linked list of community-list.  */
                     93: struct community_list_list
                     94: {
                     95:   struct community_list *head;
                     96:   struct community_list *tail;
                     97: };
                     98: 
                     99: /* Master structure of community-list and extcommunity-list.  */
                    100: struct community_list_master
                    101: {
                    102:   struct community_list_list num;
                    103:   struct community_list_list str;
                    104: };
                    105: 
                    106: /* Community-list handler.  community_list_init() returns this
                    107:    structure as handler.  */
                    108: struct community_list_handler
                    109: {
                    110:   /* Community-list.  */
                    111:   struct community_list_master community_list;
                    112: 
                    113:   /* Exteded community-list.  */
                    114:   struct community_list_master extcommunity_list;
                    115: };
                    116: 
                    117: /* Error code of community-list.  */
                    118: #define COMMUNITY_LIST_ERR_CANT_FIND_LIST        -1
                    119: #define COMMUNITY_LIST_ERR_MALFORMED_VAL         -2
                    120: #define COMMUNITY_LIST_ERR_STANDARD_CONFLICT     -3
                    121: #define COMMUNITY_LIST_ERR_EXPANDED_CONFLICT     -4
                    122: 
                    123: /* Handler.  */
                    124: extern struct community_list_handler *bgp_clist;
                    125: 
                    126: /* Prototypes.  */
                    127: extern struct community_list_handler *community_list_init (void);
                    128: extern void community_list_terminate (struct community_list_handler *);
                    129: 
                    130: extern int community_list_set (struct community_list_handler *ch,
                    131:                               const char *name, const char *str, int direct,
                    132:                               int style);
                    133: extern int community_list_unset (struct community_list_handler *ch,
                    134:                                 const char *name, const char *str,
                    135:                                 int direct, int style);
                    136: extern int extcommunity_list_set (struct community_list_handler *ch,
                    137:                                  const char *name, const char *str,
                    138:                                  int direct, int style);
                    139: extern int extcommunity_list_unset (struct community_list_handler *ch,
                    140:                                    const char *name, const char *str,
                    141:                                    int direct, int style);
                    142: 
                    143: extern struct community_list_master *
                    144: community_list_master_lookup (struct community_list_handler *, int);
                    145: 
                    146: extern struct community_list *
                    147: community_list_lookup (struct community_list_handler *, const char *, int);
                    148: 
                    149: extern int community_list_match (struct community *, struct community_list *);
                    150: extern int ecommunity_list_match (struct ecommunity *, struct community_list *);
                    151: extern int community_list_exact_match (struct community *,
                    152:                                       struct community_list *);
                    153: extern struct community *
                    154: community_list_match_delete (struct community *, struct community_list *);
                    155: 
                    156: #endif /* _QUAGGA_BGP_CLIST_H */