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
151
152
153
154
155
156
157
158
159
160
|
/* SPDX-License-Identifier: LGPL-2.1-or-later */
#pragma once
/***
Copyright © 2014 Intel Corporation. All rights reserved.
***/
#include <errno.h>
#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;
};
uint8_t options[];
} _packed_;
typedef struct DHCP6Message DHCP6Message;
#define DHCP6_MIN_OPTIONS_SIZE \
1280 - sizeof(struct ip6_hdr) - sizeof(struct udphdr)
#define IN6_ADDR_ALL_DHCP6_RELAY_AGENTS_AND_SERVERS \
((const struct in6_addr) { { { \
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)
typedef enum DHCP6State {
DHCP6_STATE_STOPPED,
DHCP6_STATE_INFORMATION_REQUEST,
DHCP6_STATE_SOLICITATION,
DHCP6_STATE_REQUEST,
DHCP6_STATE_BOUND,
DHCP6_STATE_RENEW,
DHCP6_STATE_REBIND,
DHCP6_STATE_STOPPING,
_DHCP6_STATE_MAX,
_DHCP6_STATE_INVALID = -EINVAL,
} DHCP6State;
/* https://www.iana.org/assignments/dhcpv6-parameters/dhcpv6-parameters.xhtml#dhcpv6-parameters-1 */
typedef enum DHCP6MessageType {
DHCP6_MESSAGE_SOLICIT = 1, /* RFC 8415 */
DHCP6_MESSAGE_ADVERTISE = 2, /* RFC 8415 */
DHCP6_MESSAGE_REQUEST = 3, /* RFC 8415 */
DHCP6_MESSAGE_CONFIRM = 4, /* RFC 8415 */
DHCP6_MESSAGE_RENEW = 5, /* RFC 8415 */
DHCP6_MESSAGE_REBIND = 6, /* RFC 8415 */
DHCP6_MESSAGE_REPLY = 7, /* RFC 8415 */
DHCP6_MESSAGE_RELEASE = 8, /* RFC 8415 */
DHCP6_MESSAGE_DECLINE = 9, /* RFC 8415 */
DHCP6_MESSAGE_RECONFIGURE = 10, /* RFC 8415 */
DHCP6_MESSAGE_INFORMATION_REQUEST = 11, /* RFC 8415 */
DHCP6_MESSAGE_RELAY_FORWARD = 12, /* RFC 8415 */
DHCP6_MESSAGE_RELAY_REPLY = 13, /* RFC 8415 */
DHCP6_MESSAGE_LEASE_QUERY = 14, /* RFC 5007 */
DHCP6_MESSAGE_LEASE_QUERY_REPLY = 15, /* RFC 5007 */
DHCP6_MESSAGE_LEASE_QUERY_DONE = 16, /* RFC 5460 */
DHCP6_MESSAGE_LEASE_QUERY_DATA = 17, /* RFC 5460 */
DHCP6_MESSAGE_RECONFIGURE_REQUEST = 18, /* RFC 6977 */
DHCP6_MESSAGE_RECONFIGURE_REPLY = 19, /* RFC 6977 */
DHCP6_MESSAGE_DHCPV4_QUERY = 20, /* RFC 7341 */
DHCP6_MESSAGE_DHCPV4_RESPONSE = 21, /* RFC 7341 */
DHCP6_MESSAGE_ACTIVE_LEASE_QUERY = 22, /* RFC 7653 */
DHCP6_MESSAGE_START_TLS = 23, /* RFC 7653 */
DHCP6_MESSAGE_BINDING_UPDATE = 24, /* RFC 8156 */
DHCP6_MESSAGE_BINDING_REPLY = 25, /* RFC 8156 */
DHCP6_MESSAGE_POOL_REQUEST = 26, /* RFC 8156 */
DHCP6_MESSAGE_POOL_RESPONSE = 27, /* RFC 8156 */
DHCP6_MESSAGE_UPDATE_REQUEST = 28, /* RFC 8156 */
DHCP6_MESSAGE_UPDATE_REQUEST_ALL = 29, /* RFC 8156 */
DHCP6_MESSAGE_UPDATE_DONE = 30, /* RFC 8156 */
DHCP6_MESSAGE_CONNECT = 31, /* RFC 8156 */
DHCP6_MESSAGE_CONNECT_REPLY = 32, /* RFC 8156 */
DHCP6_MESSAGE_DISCONNECT = 33, /* RFC 8156 */
DHCP6_MESSAGE_STATE = 34, /* RFC 8156 */
DHCP6_MESSAGE_CONTACT = 35, /* RFC 8156 */
_DHCP6_MESSAGE_TYPE_MAX,
_DHCP6_MESSAGE_TYPE_INVALID = -EINVAL,
} DHCP6MessageType;
typedef enum DHCP6NTPSubOption {
DHCP6_NTP_SUBOPTION_SRV_ADDR = 1,
DHCP6_NTP_SUBOPTION_MC_ADDR = 2,
DHCP6_NTP_SUBOPTION_SRV_FQDN = 3,
_DHCP6_NTP_SUBOPTION_MAX,
_DHCP6_NTP_SUBOPTION_INVALID = -EINVAL,
} DHCP6NTPSubOption;
/*
* RFC 8415, RFC 5007 and RFC 7653 status codes:
* https://www.iana.org/assignments/dhcpv6-parameters/dhcpv6-parameters.xhtml#dhcpv6-parameters-5
*/
typedef enum DHCP6Status {
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_NO_PREFIX_AVAIL = 6,
DHCP6_STATUS_UNKNOWN_QUERY_TYPE = 7,
DHCP6_STATUS_MALFORMED_QUERY = 8,
DHCP6_STATUS_NOT_CONFIGURED = 9,
DHCP6_STATUS_NOT_ALLOWED = 10,
DHCP6_STATUS_QUERY_TERMINATED = 11,
DHCP6_STATUS_DATA_MISSING = 12,
DHCP6_STATUS_CATCHUP_COMPLETE = 13,
DHCP6_STATUS_NOT_SUPPORTED = 14,
DHCP6_STATUS_TLS_CONNECTION_REFUSED = 15,
DHCP6_STATUS_ADDRESS_IN_USE = 16,
DHCP6_STATUS_CONFIGURATION_CONFLICT = 17,
DHCP6_STATUS_MISSING_BINDING_INFORMATION = 18,
DHCP6_STATUS_OUTDATED_BINDING_INFORMATION = 19,
DHCP6_STATUS_SERVER_SHUTTING_DOWN = 20,
DHCP6_STATUS_DNS_UPDATE_NOT_SUPPORTED = 21,
DHCP6_STATUS_EXCESSIVE_TIME_SKEW = 22,
_DHCP6_STATUS_MAX,
_DHCP6_STATUS_INVALID = -EINVAL,
} DHCP6Status;
typedef enum DHCP6FQDNFlag {
DHCP6_FQDN_FLAG_S = 1 << 0,
DHCP6_FQDN_FLAG_O = 1 << 1,
DHCP6_FQDN_FLAG_N = 1 << 2,
} DHCP6FQDNFlag;
const char* dhcp6_state_to_string(DHCP6State s) _const_;
const char* dhcp6_message_type_to_string(DHCP6MessageType s) _const_;
DHCP6MessageType dhcp6_message_type_from_string(const char *s) _pure_;
const char* dhcp6_message_status_to_string(DHCP6Status s) _const_;
DHCP6Status dhcp6_message_status_from_string(const char *s) _pure_;
int dhcp6_message_status_to_errno(DHCP6Status s);
|
