src/libsystemd-network/dhcp6-internal.h

   1 /* SPDX-License-Identifier: LGPL-2.1-or-later */
   2 #pragma once
   3
   4 /***
   5   Copyright © 2014-2015 Intel Corporation. All rights reserved.
   6 ***/
   7
   8 #include <net/ethernet.h>
   9 #include <netinet/in.h>
  10
  11 #include "sd-dhcp6-client.h"
  12
  13 #include "dhcp-duid-internal.h"
  14 #include "dhcp6-option.h"
  15 #include "dhcp6-protocol.h"
  16 #include "forward.h"
  17 #include "network-common.h"
  18 #include "sparse-endian.h"
  19
  20 /* what to request from the server, addresses (IA_NA) and/or prefixes (IA_PD) */
  21 typedef enum DHCP6RequestIA {
  22         DHCP6_REQUEST_IA_NA = 1 << 0,
  23         DHCP6_REQUEST_IA_TA = 1 << 1, /* currently not used */
  24         DHCP6_REQUEST_IA_PD = 1 << 2,
  25 } DHCP6RequestIA;
  26
  27 struct sd_dhcp6_client {
  28         unsigned n_ref;
  29
  30         int ifindex;
  31         char *ifname;
  32
  33         struct in6_addr local_address;
  34         struct hw_addr_data hw_addr;
  35         uint16_t arp_type;
  36
  37         sd_event *event;
  38         sd_event_source *receive_message;
  39         sd_event_source *timeout_resend;
  40         sd_event_source *timeout_expire;
  41         sd_event_source *timeout_t1;
  42         sd_event_source *timeout_t2;
  43         int event_priority;
  44         int fd;
  45
  46         sd_device *dev;
  47
  48         DHCP6State state;
  49         bool information_request;
  50         usec_t information_request_time_usec;
  51         usec_t information_refresh_time_usec;
  52         be32_t transaction_id;
  53         usec_t transaction_start;
  54         usec_t retransmit_time;
  55         uint8_t retransmit_count;
  56
  57         bool iaid_set;
  58         DHCP6IA ia_na;
  59         DHCP6IA ia_pd;
  60         DHCP6RequestIA request_ia;
  61         sd_dhcp_duid duid;
  62         be16_t *req_opts;
  63         size_t n_req_opts;
  64         char *fqdn;
  65         char *mudurl;
  66         char **user_class;
  67         char **vendor_class;
  68         OrderedHashmap *extra_options;
  69         OrderedSet *vendor_options;
  70         bool rapid_commit;
  71
  72         struct sd_dhcp6_lease *lease;
  73
  74         sd_dhcp6_client_callback_t callback;
  75         void *userdata;
  76         sd_dhcp6_client_callback_t state_callback;
  77         void *state_userdata;
  78         bool send_release;
  79 };
  80
  81 int dhcp6_network_bind_udp_socket(int ifindex, const struct in6_addr *address);
  82 int dhcp6_network_send_udp_socket(int s, const struct in6_addr *address, const void *packet, size_t len);
  83
  84 int dhcp6_client_send_message(sd_dhcp6_client *client);
  85 int dhcp6_client_set_transaction_id(sd_dhcp6_client *client, uint32_t transaction_id);
  86
  87 #define log_dhcp6_client_errno(client, error, fmt, ...)         \
  88         log_interface_prefix_full_errno(                        \
  89                 "DHCPv6 client: ",                              \
  90                 sd_dhcp6_client, client,                        \
  91                 error, fmt, ##__VA_ARGS__)
  92 #define log_dhcp6_client(client, fmt, ...)                      \
  93         log_interface_prefix_full_errno_zerook(                 \
  94                 "DHCPv6 client: ",                              \
  95                 sd_dhcp6_client, client,                        \
  96                 0, fmt, ##__VA_ARGS__)