source: rtems-libbsd/dhcpcd/dhcp6.h @ 1f7037d

55-freebsd-126-freebsd-12
Last change on this file since 1f7037d was f2ed769, checked in by Sebastian Huber <sebastian.huber@…>, on 01/30/14 at 12:29:46

DHCPCD(8): Import

Import DHCPCD(8) from:

​http://roy.marples.name/projects/dhcpcd/

The upstream sources can be obtained via:

fossil clone ​http://roy.marples.name/projects/dhcpcd

The imported version is 2014-01-29 19:46:44 [6b209507bb].
  • Property mode set to 100644
File size: 6.8 KB
Line 
1/*
2 * dhcpcd - DHCP client daemon
3 * Copyright (c) 2006-2014 Roy Marples <roy@marples.name>
4 * All rights reserved
5
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28#ifndef DHCP6_H
29#define DHCP6_H
30
31#include "dhcpcd.h"
32
33#define IN6ADDR_LINKLOCAL_ALLDHCP_INIT \
34        {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
35            0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x02 }}}
36
37/* UDP port numbers for DHCP */
38#define DHCP6_CLIENT_PORT       546
39#define DHCP6_SERVER_PORT       547
40
41/* DHCP message type */
42#define DHCP6_SOLICIT           1
43#define DHCP6_ADVERTISE         2
44#define DHCP6_REQUEST           3
45#define DHCP6_CONFIRM           4
46#define DHCP6_RENEW             5
47#define DHCP6_REBIND            6
48#define DHCP6_REPLY             7
49#define DHCP6_RELEASE           8
50#define DHCP6_DECLINE           9
51#define DHCP6_RECONFIGURE       10
52#define DHCP6_INFORMATION_REQ   11
53#define DHCP6_RELAY_FLOW        12
54#define DHCP6_RELAY_REPL        13
55
56#define D6_OPTION_CLIENTID              1
57#define D6_OPTION_SERVERID              2
58#define D6_OPTION_IA_NA                 3
59#define D6_OPTION_IA_TA                 4
60#define D6_OPTION_ORO                   6
61#define D6_OPTION_IA_ADDR               5
62#define D6_OPTION_PREFERENCE            7
63#define D6_OPTION_ELAPSED               8
64#define D6_OPTION_AUTH                  11
65#define D6_OPTION_UNICAST               12
66#define D6_OPTION_STATUS_CODE           13
67#define D6_OPTION_RAPID_COMMIT          14
68#define D6_OPTION_VENDOR_CLASS          16
69#define D6_OPTION_VENDOR_OPTS           17
70#define D6_OPTION_SIP_SERVERS_NAME      21
71#define D6_OPTION_SIP_SERVERS_ADDRESS   22
72#define D6_OPTION_DNS_SERVERS           23
73#define D6_OPTION_DOMAIN_LIST           24
74#define D6_OPTION_IA_PD                 25
75#define D6_OPTION_IAPREFIX              26
76#define D6_OPTION_NIS_SERVERS           27
77#define D6_OPTION_NISP_SERVERS          28
78#define D6_OPTION_NIS_DOMAIN_NAME       29
79#define D6_OPTION_NISP_DOMAIN_NAME      30
80#define D6_OPTION_SNTP_SERVERS          31
81#define D6_OPTION_INFO_REFRESH_TIME     32
82#define D6_OPTION_BCMS_SERVER_D         33
83#define D6_OPTION_BCMS_SERVER_A         34
84#define D6_OPTION_FQDN                  39
85#define D6_OPTION_POSIX_TIMEZONE        41
86#define D6_OPTION_TZDB_TIMEZONE         42
87
88#define D6_FQDN_PTR     0x00
89#define D6_FQDN_BOTH    0x01
90#define D6_FQDN_NONE    0x04
91
92#include "dhcp.h"
93#include "ipv6.h"
94
95struct dhcp6_message {
96        uint8_t type;
97        uint8_t xid[3];
98        /* followed by options */
99} __packed;
100
101struct dhcp6_option {
102        uint16_t code;
103        uint16_t len;
104        /* followed by data */
105} __packed;
106
107#define D6_STATUS_OK            0
108#define D6_STATUS_FAIL          1
109#define D6_STATUS_NOADDR        2
110#define D6_STATUS_NOBINDING     3
111#define D6_STATUS_NOTONLINK     4
112#define D6_STATUS_USEMULTICAST  5
113
114#define SOL_MAX_DELAY           1
115#define SOL_TIMEOUT             1
116#define SOL_MAX_RT              120
117#define REQ_TIMEOUT             1
118#define REQ_MAX_RT              30
119#define REQ_MAX_RC              10
120#define CNF_MAX_DELAY           1
121#define CNF_TIMEOUT             1
122#define CNF_MAX_RT              4
123#define CNF_MAX_RD              10
124#define REN_TIMEOUT             10
125#define REN_MAX_RT              600
126#define REB_TIMEOUT             10
127#define REB_MAX_RT              600
128#define INF_MAX_DELAY           1
129#define INF_TIMEOUT             1
130#define INF_MAX_RT              120
131#define REL_TIMEOUT             1
132#define REL_MAX_RC              5
133#define DEC_TIMEOUT             1
134#define DEC_MAX_RC              5
135#define REC_TIMEOUT             2
136#define REC_MAX_RC              8
137#define HOP_COUNT_LIMIT         32
138
139/* RFC4242 3.1 */
140#define IRT_DEFAULT             86400
141#define IRT_MINIMUM             600
142
143#define DHCP6_RAND_MIN          -100
144#define DHCP6_RAND_MAX          100
145
146enum DH6S {
147        DH6S_INIT,
148        DH6S_DISCOVER,
149        DH6S_REQUEST,
150        DH6S_BOUND,
151        DH6S_RENEW,
152        DH6S_REBIND,
153        DH6S_CONFIRM,
154        DH6S_INFORM,
155        DH6S_INFORMED,
156        DH6S_RENEW_REQUESTED,
157        DH6S_PROBE,
158        DH6S_DELEGATED,
159        DH6S_RELEASE
160};
161
162struct dhcp6_state {
163        enum DH6S state;
164        time_t start_uptime;
165
166        /* Message retransmission timings */
167        struct timeval RT;
168        int IMD;
169        int RTC;
170        int IRT;
171        int MRC;
172        int MRT;
173        void (*MRCcallback)(void *);
174
175        struct dhcp6_message *send;
176        size_t send_len;
177        struct dhcp6_message *recv;
178        size_t recv_len;
179        struct dhcp6_message *new;
180        size_t new_len;
181        struct dhcp6_message *old;
182        size_t old_len;
183
184        uint32_t renew;
185        uint32_t rebind;
186        uint32_t expire;
187        struct in6_addr unicast;
188        struct ipv6_addrhead addrs;
189        uint32_t lowpl;
190        uint32_t sla;
191        uint8_t sla_set;
192        char leasefile[PATH_MAX];
193        const char *reason;
194
195        struct authstate auth;
196};
197
198#define D6_STATE(ifp)                                                          \
199        ((struct dhcp6_state *)(ifp)->if_data[IF_DATA_DHCP6])
200#define D6_CSTATE(ifp)                                                         \
201        ((const struct dhcp6_state *)(ifp)->if_data[IF_DATA_DHCP6])
202#define D6_STATE_RUNNING(ifp) (D6_STATE((ifp)) && D6_STATE((ifp))->new)
203#define D6_FIRST_OPTION(m)                                                     \
204    ((struct dhcp6_option *)                                                   \
205        ((uint8_t *)(m) + sizeof(struct dhcp6_message)))
206#define D6_NEXT_OPTION(o)                                                      \
207    ((struct dhcp6_option *)                                                   \
208        (((uint8_t *)o) + sizeof(struct dhcp6_option) + ntohs((o)->len)))
209#define D6_OPTION_DATA(o)                                                      \
210    ((uint8_t *)(o) + sizeof(struct dhcp6_option))
211#define D6_CFIRST_OPTION(m)                                                    \
212    ((const struct dhcp6_option *)                                             \
213        ((const uint8_t *)(m) + sizeof(struct dhcp6_message)))
214#define D6_CNEXT_OPTION(o)                                                     \
215    ((const struct dhcp6_option *)                                             \
216        (((const uint8_t *)o) + sizeof(struct dhcp6_option) + ntohs((o)->len)))
217#define D6_COPTION_DATA(o)                                                     \
218    ((const uint8_t *)(o) + sizeof(struct dhcp6_option))
219
220#ifdef INET6
221extern struct dhcp_opt *dhcp6_opts;
222extern size_t dhcp6_opts_len;
223
224void dhcp6_printoptions(void);
225int dhcp6_addrexists(const struct ipv6_addr *);
226int dhcp6_find_delegates(struct interface *);
227int dhcp6_start(struct interface *, enum DH6S);
228void dhcp6_reboot(struct interface *);
229ssize_t dhcp6_env(char **, const char *, const struct interface *,
230    const struct dhcp6_message *, ssize_t);
231void dhcp6_free(struct interface *);
232void dhcp6_handleifa(int, const char *, const struct in6_addr *addr, int);
233void dhcp6_drop(struct interface *, const char *);
234#else
235#define dhcp6_printoptions()
236#define dhcp6_addrexists(a) 0
237#define dhcp6_find_delegates(a) 0
238#define dhcp6_start(a, b) 0
239#define dhcp6_reboot(a)
240#define dhcp6_env(a, b, c, d, e)
241#define dhcp6_free(a)
242#define dhcp6_drop(a, b)
243#endif
244
245#endif
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