bgpd/bgp_flowspec_util.h

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /* BGP Flowspec header for utilities
   3  * Copyright (C) 2018 6WIND
   4  */
   5
   6 #ifndef _FRR_BGP_FLOWSPEC_UTIL_H
   7 #define _FRR_BGP_FLOWSPEC_UTIL_H
   8
   9 #include "zclient.h"
  10
  11 #define BGP_FLOWSPEC_STRING_DISPLAY_MAX 512
  12
  13 enum bgp_flowspec_util_nlri_t {
  14         BGP_FLOWSPEC_VALIDATE_ONLY = 0,
  15         BGP_FLOWSPEC_RETURN_STRING = 1,
  16         BGP_FLOWSPEC_CONVERT_TO_NON_OPAQUE = 2,
  17         BGP_FLOWSPEC_RETURN_JSON = 3,
  18 };
  19
  20
  21 extern int bgp_flowspec_op_decode(enum bgp_flowspec_util_nlri_t type,
  22                                   uint8_t *nlri_ptr,
  23                                   uint32_t max_len,
  24                                   void *result, int *error);
  25
  26 extern int bgp_flowspec_ip_address(enum bgp_flowspec_util_nlri_t type,
  27                                    uint8_t *nlri_ptr,
  28                                    uint32_t max_len,
  29                                    void *result, int *error,
  30                                    afi_t afi, uint8_t *ipv6_offset);
  31
  32 extern int bgp_flowspec_bitmask_decode(enum bgp_flowspec_util_nlri_t type,
  33                                         uint8_t *nlri_ptr,
  34                                         uint32_t max_len,
  35                                         void *result, int *error);
  36
  37 struct bgp_pbr_entry_main;
  38 extern int bgp_flowspec_match_rules_fill(uint8_t *nlri_content, int len,
  39                                          struct bgp_pbr_entry_main *bpem,
  40                                          afi_t afi);
  41
  42 extern bool bgp_flowspec_contains_prefix(const struct prefix *pfs,
  43                                          struct prefix *input,
  44                                          int prefix_check);
  45
  46 extern bool bgp_flowspec_get_first_nh(struct bgp *bgp, struct bgp_path_info *pi,
  47                                       struct prefix *nh, afi_t afi);
  48
  49 #endif /* _FRR_BGP_FLOWSPEC_UTIL_H */