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

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