src/libsystemd-network/dhcp-lease-internal.h

   1 /* SPDX-License-Identifier: LGPL-2.1-or-later */
   2 #pragma once
   3
   4 /***
   5   Copyright © 2013 Intel Corporation. All rights reserved.
   6 ***/
   7
   8 #include "sd-dhcp-lease.h"
   9
  10 #include "dhcp-client-id-internal.h"
  11 #include "dhcp-option.h"
  12 #include "forward.h"
  13 #include "list.h"
  14
  15 struct sd_dhcp_route {
  16         struct in_addr dst_addr;
  17         struct in_addr gw_addr;
  18         unsigned char dst_prefixlen;
  19 };
  20
  21 struct sd_dhcp_raw_option {
  22         LIST_FIELDS(struct sd_dhcp_raw_option, options);
  23
  24         uint8_t tag;
  25         uint8_t length;
  26         void *data;
  27 };
  28
  29 struct sd_dhcp_lease {
  30         unsigned n_ref;
  31
  32         /* each 0 if unset */
  33         usec_t t1;
  34         usec_t t2;
  35         usec_t lifetime;
  36         triple_timestamp timestamp;
  37         usec_t ipv6_only_preferred_usec;
  38
  39         /* each 0 if unset */
  40         be32_t address;
  41         be32_t server_address;
  42         be32_t next_server;
  43
  44         bool have_subnet_mask;
  45         be32_t subnet_mask;
  46
  47         bool have_broadcast;
  48         be32_t broadcast;
  49
  50         struct in_addr *router;
  51         size_t router_size;
  52
  53         bool rapid_commit;
  54
  55         DHCPServerData servers[_SD_DHCP_LEASE_SERVER_TYPE_MAX];
  56
  57         sd_dns_resolver *dnr;
  58         size_t n_dnr;
  59
  60         struct sd_dhcp_route *static_routes;
  61         size_t n_static_routes;
  62         struct sd_dhcp_route *classless_routes;
  63         size_t n_classless_routes;
  64
  65         uint16_t mtu; /* 0 if unset */
  66
  67         char *domainname;
  68         char **search_domains;
  69         char *hostname;
  70         char *root_path;
  71         char *captive_portal;
  72
  73         sd_dhcp_client_id client_id;
  74
  75         void *vendor_specific;
  76         size_t vendor_specific_len;
  77
  78         char *timezone;
  79
  80         uint8_t sixrd_ipv4masklen;
  81         uint8_t sixrd_prefixlen;
  82         struct in6_addr sixrd_prefix;
  83         struct in_addr *sixrd_br_addresses;
  84         size_t sixrd_n_br_addresses;
  85
  86         LIST_HEAD(struct sd_dhcp_raw_option, private_options);
  87 };
  88
  89 int dhcp_lease_new(sd_dhcp_lease **ret);
  90
  91 int dhcp_lease_parse_options(uint8_t code, uint8_t len, const void *option, void *userdata);
  92 int dhcp_lease_parse_search_domains(const uint8_t *option, size_t len, char ***domains);
  93 int dhcp_lease_insert_private_option(sd_dhcp_lease *lease, uint8_t tag, const void *data, uint8_t len);
  94
  95 void dhcp_lease_set_timestamp(sd_dhcp_lease *lease, const triple_timestamp *timestamp);
  96 int dhcp_lease_set_default_subnet_mask(sd_dhcp_lease *lease);
  97 int dhcp_lease_set_client_id(sd_dhcp_lease *lease, const sd_dhcp_client_id *client_id);
  98
  99 #define dhcp_lease_unref_and_replace(a, b)                              \
 100         unref_and_replace_full(a, b, sd_dhcp_lease_ref, sd_dhcp_lease_unref)