bgpd/bgp_flowspec_util.h

   1 /* BGP Flowspec header for utilities
   2  * Copyright (C) 2018 6WIND
   3  *
   4  * FRRouting is free software; you can redistribute it and/or modify it
   5  * under the terms of the GNU General Public License as published by the
   6  * Free Software Foundation; either version 2, or (at your option) any
   7  * later version.
   8  *
   9  * FRRouting is distributed in the hope that it will be useful, but
  10  * WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along
  15  * with this program; see the file COPYING; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  17  */
  18
  19 #ifndef _FRR_BGP_FLOWSPEC_UTIL_H
  20 #define _FRR_BGP_FLOWSPEC_UTIL_H
  21
  22 #include "zclient.h"
  23
  24 #define BGP_FLOWSPEC_STRING_DISPLAY_MAX 512
  25
  26 enum bgp_flowspec_util_nlri_t {
  27         BGP_FLOWSPEC_VALIDATE_ONLY = 0,
  28         BGP_FLOWSPEC_RETURN_STRING = 1,
  29         BGP_FLOWSPEC_CONVERT_TO_NON_OPAQUE = 2,
  30         BGP_FLOWSPEC_RETURN_JSON = 3,
  31 };
  32
  33
  34 extern int bgp_flowspec_op_decode(enum bgp_flowspec_util_nlri_t type,
  35                                   uint8_t *nlri_ptr,
  36                                   uint32_t max_len,
  37                                   void *result, int *error);
  38
  39 extern int bgp_flowspec_ip_address(enum bgp_flowspec_util_nlri_t type,
  40                                    uint8_t *nlri_ptr,
  41                                    uint32_t max_len,
  42                                    void *result, int *error);
  43
  44 extern int bgp_flowspec_bitmask_decode(enum bgp_flowspec_util_nlri_t type,
  45                                         uint8_t *nlri_ptr,
  46                                         uint32_t max_len,
  47                                         void *result, int *error);
  48
  49 struct bgp_pbr_entry_main;
  50 extern int bgp_flowspec_match_rules_fill(uint8_t *nlri_content, int len,
  51                                          struct bgp_pbr_entry_main *bpem);
  52
  53 extern bool bgp_flowspec_contains_prefix(struct prefix *pfs,
  54                                          struct prefix *input,
  55                                          int prefix_check);
  56
  57 extern int bgp_flowspec_get_first_nh(struct bgp *bgp,
  58                                      struct bgp_path_info *pi,
  59                                      struct prefix *nh);
  60
  61 #endif /* _FRR_BGP_FLOWSPEC_UTIL_H */