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