src/network/networkd-util.h

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 #pragma once
   3
   4 #include "conf-parser.h"
   5 #include "hash-funcs.h"
   6 #include "macro.h"
   7
   8 typedef enum AddressFamily {
   9         /* This is a bitmask, though it usually doesn't feel that way! */
  10         ADDRESS_FAMILY_NO             = 0,
  11         ADDRESS_FAMILY_IPV4           = 1 << 0,
  12         ADDRESS_FAMILY_IPV6           = 1 << 1,
  13         ADDRESS_FAMILY_YES            = ADDRESS_FAMILY_IPV4 | ADDRESS_FAMILY_IPV6,
  14         ADDRESS_FAMILY_FALLBACK_IPV4  = 1 << 2,
  15         ADDRESS_FAMILY_FALLBACK       = ADDRESS_FAMILY_FALLBACK_IPV4 | ADDRESS_FAMILY_IPV6,
  16         _ADDRESS_FAMILY_MAX,
  17         _ADDRESS_FAMILY_INVALID = -1,
  18 } AddressFamily;
  19
  20 typedef struct NetworkConfigSection {
  21         unsigned line;
  22         bool invalid;
  23         char filename[];
  24 } NetworkConfigSection;
  25
  26 CONFIG_PARSER_PROTOTYPE(config_parse_link_local_address_family);
  27 CONFIG_PARSER_PROTOTYPE(config_parse_address_family_with_kernel);
  28
  29 const char *address_family_to_string(AddressFamily b) _const_;
  30 AddressFamily address_family_from_string(const char *s) _pure_;
  31
  32 const char *link_local_address_family_to_string(AddressFamily b) _const_;
  33 AddressFamily link_local_address_family_from_string(const char *s) _pure_;
  34
  35 int kernel_route_expiration_supported(void);
  36
  37 int network_config_section_new(const char *filename, unsigned line, NetworkConfigSection **s);
  38 void network_config_section_free(NetworkConfigSection *network);
  39 DEFINE_TRIVIAL_CLEANUP_FUNC(NetworkConfigSection*, network_config_section_free);
  40 extern const struct hash_ops network_config_hash_ops;
  41
  42 static inline bool section_is_invalid(NetworkConfigSection *section) {
  43         /* If this returns false, then it does _not_ mean the section is valid. */
  44
  45         if (!section)
  46                 return false;
  47
  48         return section->invalid;
  49 }
  50
  51 #define DEFINE_NETWORK_SECTION_FUNCTIONS(type, free_func)               \
  52         static inline void free_func##_or_set_invalid(type *p) {        \
  53                 assert(p);                                              \
  54                                                                         \
  55                 if (p->section)                                         \
  56                         p->section->invalid = true;                     \
  57                 else                                                    \
  58                         free_func(p);                                   \
  59         }                                                               \
  60         DEFINE_TRIVIAL_CLEANUP_FUNC(type*, free_func);                  \
  61         DEFINE_TRIVIAL_CLEANUP_FUNC(type*, free_func##_or_set_invalid);