src/libsystemd-network/dhcp6-protocol.h

   1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
   2
   3 #pragma once
   4
   5 /***
   6   This file is part of systemd.
   7
   8   Copyright (C) 2014 Intel Corporation. All rights reserved.
   9
  10   systemd is free software; you can redistribute it and/or modify it
  11   under the terms of the GNU Lesser General Public License as published by
  12   the Free Software Foundation; either version 2.1 of the License, or
  13   (at your option) any later version.
  14
  15   systemd is distributed in the hope that it will be useful, but
  16   WITHOUT ANY WARRANTY; without even the implied warranty of
  17   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  18   Lesser General Public License for more details.
  19
  20   You should have received a copy of the GNU Lesser General Public License
  21   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  22 ***/
  23
  24 #include <netinet/ip6.h>
  25 #include <netinet/udp.h>
  26
  27 #include "macro.h"
  28 #include "sparse-endian.h"
  29
  30 struct DHCP6Message {
  31         union {
  32                 struct {
  33                         uint8_t type;
  34                         uint8_t _pad[3];
  35                 } _packed_;
  36                 be32_t transaction_id;
  37         };
  38 } _packed_;
  39
  40 typedef struct DHCP6Message DHCP6Message;
  41
  42 #define DHCP6_MIN_OPTIONS_SIZE \
  43         1280 - sizeof(struct ip6_hdr) - sizeof(struct udphdr)
  44
  45 #define IN6ADDR_ALL_DHCP6_RELAY_AGENTS_AND_SERVERS_INIT \
  46         { { { 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
  47               0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x02 } } }
  48
  49 enum {
  50         DHCP6_PORT_SERVER                       = 547,
  51         DHCP6_PORT_CLIENT                       = 546,
  52 };
  53
  54 #define DHCP6_SOL_MAX_DELAY                     1 * USEC_PER_SEC
  55 #define DHCP6_SOL_TIMEOUT                       1 * USEC_PER_SEC
  56 #define DHCP6_SOL_MAX_RT                        120 * USEC_PER_SEC
  57 #define DHCP6_REQ_TIMEOUT                       1 * USEC_PER_SEC
  58 #define DHCP6_REQ_MAX_RT                        120 * USEC_PER_SEC
  59 #define DHCP6_REQ_MAX_RC                        10
  60
  61 enum {
  62         DHCP6_DUID_LLT                          = 1,
  63         DHCP6_DUID_EN                           = 2,
  64         DHCP6_DUID_LL                           = 3,
  65         DHCP6_DUID_UUID                         = 4,
  66 };
  67
  68 enum DHCP6State {
  69         DHCP6_STATE_STOPPED                     = 0,
  70         DHCP6_STATE_RS                          = 1,
  71         DHCP6_STATE_SOLICITATION                = 2,
  72         DHCP6_STATE_REQUEST                     = 3,
  73         DHCP6_STATE_BOUND                       = 4,
  74 };
  75
  76 enum {
  77         DHCP6_SOLICIT                           = 1,
  78         DHCP6_ADVERTISE                         = 2,
  79         DHCP6_REQUEST                           = 3,
  80         DHCP6_CONFIRM                           = 4,
  81         DHCP6_RENEW                             = 5,
  82         DHCP6_REBIND                            = 6,
  83         DHCP6_REPLY                             = 7,
  84         DHCP6_RELEASE                           = 8,
  85         DHCP6_DECLINE                           = 9,
  86         DHCP6_RECONFIGURE                       = 10,
  87         DHCP6_INFORMATION_REQUEST               = 11,
  88         DHCP6_RELAY_FORW                        = 12,
  89         DHCP6_RELAY_REPL                        = 13,
  90         _DHCP6_MESSAGE_MAX                      = 14,
  91 };
  92
  93 enum {
  94         DHCP6_OPTION_CLIENTID                   = 1,
  95         DHCP6_OPTION_SERVERID                   = 2,
  96         DHCP6_OPTION_IA_NA                      = 3,
  97         DHCP6_OPTION_IA_TA                      = 4,
  98         DHCP6_OPTION_IAADDR                     = 5,
  99         DHCP6_OPTION_ORO                        = 6,
 100         DHCP6_OPTION_PREFERENCE                 = 7,
 101         DHCP6_OPTION_ELAPSED_TIME               = 8,
 102         DHCP6_OPTION_RELAY_MSG                  = 9,
 103         /* option code 10 is unassigned */
 104         DHCP6_OPTION_AUTH                       = 11,
 105         DHCP6_OPTION_UNICAST                    = 12,
 106         DHCP6_OPTION_STATUS_CODE                = 13,
 107         DHCP6_OPTION_RAPID_COMMIT               = 14,
 108         DHCP6_OPTION_USER_CLASS                 = 15,
 109         DHCP6_OPTION_VENDOR_CLASS               = 16,
 110         DHCP6_OPTION_VENDOR_OPTS                = 17,
 111         DHCP6_OPTION_INTERFACE_ID               = 18,
 112         DHCP6_OPTION_RECONF_MSG                 = 19,
 113         DHCP6_OPTION_RECONF_ACCEPT              = 20,
 114 };
 115
 116 enum {
 117         DHCP6_STATUS_SUCCESS                    = 0,
 118         DHCP6_STATUS_UNSPEC_FAIL                = 1,
 119         DHCP6_STATUS_NO_ADDRS_AVAIL             = 2,
 120         DHCP6_STATUS_NO_BINDING                 = 3,
 121         DHCP6_STATUS_NOT_ON_LINK                = 4,
 122         DHCP6_STATUS_USE_MULTICAST              = 5,
 123         _DHCP6_STATUS_MAX                       = 6,
 124 };