summaryrefslogtreecommitdiff
path: root/src/libsystemd-network/dhcp6-protocol.h
blob: b3a28f88b4f8df112ab78605518c57cff0125b68 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

#pragma once

/***
  This file is part of systemd.

  Copyright (C) 2014 Intel Corporation. All rights reserved.

  systemd is free software; you can redistribute it and/or modify it
  under the terms of the GNU Lesser General Public License as published by
  the Free Software Foundation; either version 2.1 of the License, or
  (at your option) any later version.

  systemd is distributed in the hope that it will be useful, but
  WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General Public License
  along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/

#include <netinet/ip6.h>
#include <netinet/udp.h>

#include "macro.h"
#include "sparse-endian.h"

struct DHCP6Message {
        union {
                struct {
                        uint8_t type;
                        uint8_t _pad[3];
                } _packed_;
                be32_t transaction_id;
        };
} _packed_;

typedef struct DHCP6Message DHCP6Message;

#define DHCP6_MIN_OPTIONS_SIZE \
        1280 - sizeof(struct ip6_hdr) - sizeof(struct udphdr)

#define IN6ADDR_ALL_DHCP6_RELAY_AGENTS_AND_SERVERS_INIT \
        { { { 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
              0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x02 } } }

enum {
        DHCP6_PORT_SERVER                       = 547,
        DHCP6_PORT_CLIENT                       = 546,
};

#define DHCP6_INF_TIMEOUT                       1 * USEC_PER_SEC
#define DHCP6_INF_MAX_RT                        120 * USEC_PER_SEC
#define DHCP6_SOL_MAX_DELAY                     1 * USEC_PER_SEC
#define DHCP6_SOL_TIMEOUT                       1 * USEC_PER_SEC
#define DHCP6_SOL_MAX_RT                        120 * USEC_PER_SEC
#define DHCP6_REQ_TIMEOUT                       1 * USEC_PER_SEC
#define DHCP6_REQ_MAX_RT                        120 * USEC_PER_SEC
#define DHCP6_REQ_MAX_RC                        10
#define DHCP6_REN_TIMEOUT                       10 * USEC_PER_SEC
#define DHCP6_REN_MAX_RT                        600 * USEC_PER_SEC
#define DHCP6_REB_TIMEOUT                       10 * USEC_PER_SEC
#define DHCP6_REB_MAX_RT                        600 * USEC_PER_SEC

enum {
        DHCP6_DUID_LLT                          = 1,
        DHCP6_DUID_EN                           = 2,
        DHCP6_DUID_LL                           = 3,
        DHCP6_DUID_UUID                         = 4,
};

enum DHCP6State {
        DHCP6_STATE_STOPPED                     = 0,
        DHCP6_STATE_INFORMATION_REQUEST         = 1,
        DHCP6_STATE_SOLICITATION                = 2,
        DHCP6_STATE_REQUEST                     = 3,
        DHCP6_STATE_BOUND                       = 4,
        DHCP6_STATE_RENEW                       = 5,
        DHCP6_STATE_REBIND                      = 6,
};

enum {
        DHCP6_SOLICIT                           = 1,
        DHCP6_ADVERTISE                         = 2,
        DHCP6_REQUEST                           = 3,
        DHCP6_CONFIRM                           = 4,
        DHCP6_RENEW                             = 5,
        DHCP6_REBIND                            = 6,
        DHCP6_REPLY                             = 7,
        DHCP6_RELEASE                           = 8,
        DHCP6_DECLINE                           = 9,
        DHCP6_RECONFIGURE                       = 10,
        DHCP6_INFORMATION_REQUEST               = 11,
        DHCP6_RELAY_FORW                        = 12,
        DHCP6_RELAY_REPL                        = 13,
        _DHCP6_MESSAGE_MAX                      = 14,
};

enum {
        DHCP6_OPTION_CLIENTID                   = 1,
        DHCP6_OPTION_SERVERID                   = 2,
        DHCP6_OPTION_IA_NA                      = 3,
        DHCP6_OPTION_IA_TA                      = 4,
        DHCP6_OPTION_IAADDR                     = 5,
        DHCP6_OPTION_ORO                        = 6,
        DHCP6_OPTION_PREFERENCE                 = 7,
        DHCP6_OPTION_ELAPSED_TIME               = 8,
        DHCP6_OPTION_RELAY_MSG                  = 9,
        /* option code 10 is unassigned */
        DHCP6_OPTION_AUTH                       = 11,
        DHCP6_OPTION_UNICAST                    = 12,
        DHCP6_OPTION_STATUS_CODE                = 13,
        DHCP6_OPTION_RAPID_COMMIT               = 14,
        DHCP6_OPTION_USER_CLASS                 = 15,
        DHCP6_OPTION_VENDOR_CLASS               = 16,
        DHCP6_OPTION_VENDOR_OPTS                = 17,
        DHCP6_OPTION_INTERFACE_ID               = 18,
        DHCP6_OPTION_RECONF_MSG                 = 19,
        DHCP6_OPTION_RECONF_ACCEPT              = 20,

        DHCP6_OPTION_DNS_SERVERS                = 23,  /* RFC 3646 */
        DHCP6_OPTION_DOMAIN_LIST                = 24,  /* RFC 3646 */

        DHCP6_OPTION_SNTP_SERVERS               = 31,  /* RFC 4075, deprecated */

        /* option code 35 is unassigned */

        DHCP6_OPTION_NTP_SERVER                 = 56,  /* RFC 5908 */

        /* option codes 89-142 are unassigned */
        /* option codes 144-65535 are unassigned */
};

enum {
        DHCP6_NTP_SUBOPTION_SRV_ADDR            = 1,
        DHCP6_NTP_SUBOPTION_MC_ADDR             = 2,
        DHCP6_NTP_SUBOPTION_SRV_FQDN            = 3,
};

enum {
        DHCP6_STATUS_SUCCESS                    = 0,
        DHCP6_STATUS_UNSPEC_FAIL                = 1,
        DHCP6_STATUS_NO_ADDRS_AVAIL             = 2,
        DHCP6_STATUS_NO_BINDING                 = 3,
        DHCP6_STATUS_NOT_ON_LINK                = 4,
        DHCP6_STATUS_USE_MULTICAST              = 5,
        _DHCP6_STATUS_MAX                       = 6,
};