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

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 #pragma once
   3
   4 /***
   5   Copyright (C) 2013 Intel Corporation. All rights reserved.
   6   Copyright (C) 2014 Tom Gundersen
   7 ***/
   8
   9 #include <stdint.h>
  10 #include <linux/if_packet.h>
  11
  12 #include "sd-dhcp-client.h"
  13
  14 #include "dhcp-protocol.h"
  15 #include "list.h"
  16 #include "util.h"
  17
  18 struct sd_dhcp_route {
  19         struct in_addr dst_addr;
  20         struct in_addr gw_addr;
  21         unsigned char dst_prefixlen;
  22
  23         uint8_t option;
  24 };
  25
  26 struct sd_dhcp_raw_option {
  27         LIST_FIELDS(struct sd_dhcp_raw_option, options);
  28
  29         uint8_t tag;
  30         uint8_t length;
  31         void *data;
  32 };
  33
  34 struct sd_dhcp_lease {
  35         unsigned n_ref;
  36
  37         /* each 0 if unset */
  38         uint32_t t1;
  39         uint32_t t2;
  40         uint32_t lifetime;
  41
  42         /* each 0 if unset */
  43         be32_t address;
  44         be32_t server_address;
  45         be32_t router;
  46         be32_t next_server;
  47
  48         bool have_subnet_mask;
  49         be32_t subnet_mask;
  50
  51         bool have_broadcast;
  52         be32_t broadcast;
  53
  54         struct in_addr *dns;
  55         size_t dns_size;
  56
  57         struct in_addr *ntp;
  58         size_t ntp_size;
  59
  60         struct sd_dhcp_route *static_route;
  61         size_t static_route_size, static_route_allocated;
  62
  63         uint16_t mtu; /* 0 if unset */
  64
  65         char *domainname;
  66         char **search_domains;
  67         char *hostname;
  68         char *root_path;
  69
  70         void *client_id;
  71         size_t client_id_len;
  72
  73         void *vendor_specific;
  74         size_t vendor_specific_len;
  75
  76         char *timezone;
  77
  78         LIST_HEAD(struct sd_dhcp_raw_option, private_options);
  79 };
  80
  81 int dhcp_lease_new(sd_dhcp_lease **ret);
  82
  83 int dhcp_lease_parse_options(uint8_t code, uint8_t len, const void *option, void *userdata);
  84 int dhcp_lease_parse_search_domains(const uint8_t *option, size_t len, char ***domains);
  85 int dhcp_lease_insert_private_option(sd_dhcp_lease *lease, uint8_t tag, const void *data, uint8_t len);
  86
  87 int dhcp_lease_set_default_subnet_mask(sd_dhcp_lease *lease);
  88
  89 int dhcp_lease_set_client_id(sd_dhcp_lease *lease, const void *client_id, size_t client_id_len);
  90
  91 int dhcp_lease_save(sd_dhcp_lease *lease, const char *lease_file);
  92 int dhcp_lease_load(sd_dhcp_lease **ret, const char *lease_file);