2 This file is part of systemd.
4 Copyright (C) 2014 Tom Gundersen
5 Copyright (C) 2014-2015 Intel Corporation. All rights reserved.
7 systemd is free software; you can redistribute it and/or modify it
8 under the terms of the GNU Lesser General Public License as published by
9 the Free Software Foundation; either version 2.1 of the License, or
10 (at your option) any later version.
12 systemd is distributed in the hope that it will be useful, but
13 WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 Lesser General Public License for more details.
17 You should have received a copy of the GNU Lesser General Public License
18 along with systemd; If not, see <http://www.gnu.org/licenses/>.
23 #include "alloc-util.h"
24 #include "dhcp6-lease-internal.h"
25 #include "dhcp6-protocol.h"
29 int dhcp6_lease_clear_timers(DHCP6IA
*ia
) {
30 assert_return(ia
, -EINVAL
);
32 ia
->timeout_t1
= sd_event_source_unref(ia
->timeout_t1
);
33 ia
->timeout_t2
= sd_event_source_unref(ia
->timeout_t2
);
38 int dhcp6_lease_ia_rebind_expire(const DHCP6IA
*ia
, uint32_t *expire
) {
40 uint32_t valid
= 0, t
;
42 assert_return(ia
, -EINVAL
);
43 assert_return(expire
, -EINVAL
);
45 LIST_FOREACH(addresses
, addr
, ia
->addresses
) {
46 t
= be32toh(addr
->iaaddr
.lifetime_valid
);
51 t
= be32toh(ia
->lifetime_t2
);
60 DHCP6IA
*dhcp6_lease_free_ia(DHCP6IA
*ia
) {
61 DHCP6Address
*address
;
66 dhcp6_lease_clear_timers(ia
);
68 while (ia
->addresses
) {
69 address
= ia
->addresses
;
71 LIST_REMOVE(addresses
, ia
->addresses
, address
);
79 int dhcp6_lease_set_serverid(sd_dhcp6_lease
*lease
, const uint8_t *id
,
81 assert_return(lease
, -EINVAL
);
82 assert_return(id
, -EINVAL
);
84 free(lease
->serverid
);
86 lease
->serverid
= memdup(id
, len
);
90 lease
->serverid_len
= len
;
95 int dhcp6_lease_get_serverid(sd_dhcp6_lease
*lease
, uint8_t **id
, size_t *len
) {
96 assert_return(lease
, -EINVAL
);
97 assert_return(id
, -EINVAL
);
98 assert_return(len
, -EINVAL
);
100 *id
= lease
->serverid
;
101 *len
= lease
->serverid_len
;
106 int dhcp6_lease_set_preference(sd_dhcp6_lease
*lease
, uint8_t preference
) {
107 assert_return(lease
, -EINVAL
);
109 lease
->preference
= preference
;
114 int dhcp6_lease_get_preference(sd_dhcp6_lease
*lease
, uint8_t *preference
) {
115 assert_return(preference
, -EINVAL
);
120 *preference
= lease
->preference
;
125 int dhcp6_lease_set_rapid_commit(sd_dhcp6_lease
*lease
) {
126 assert_return(lease
, -EINVAL
);
128 lease
->rapid_commit
= true;
133 int dhcp6_lease_get_rapid_commit(sd_dhcp6_lease
*lease
, bool *rapid_commit
) {
134 assert_return(lease
, -EINVAL
);
135 assert_return(rapid_commit
, -EINVAL
);
137 *rapid_commit
= lease
->rapid_commit
;
142 int dhcp6_lease_get_iaid(sd_dhcp6_lease
*lease
, be32_t
*iaid
) {
143 assert_return(lease
, -EINVAL
);
144 assert_return(iaid
, -EINVAL
);
146 *iaid
= lease
->ia
.id
;
151 int sd_dhcp6_lease_get_address(sd_dhcp6_lease
*lease
, struct in6_addr
*addr
,
152 uint32_t *lifetime_preferred
,
153 uint32_t *lifetime_valid
) {
154 assert_return(lease
, -EINVAL
);
155 assert_return(addr
, -EINVAL
);
156 assert_return(lifetime_preferred
, -EINVAL
);
157 assert_return(lifetime_valid
, -EINVAL
);
159 if (!lease
->addr_iter
)
162 memcpy(addr
, &lease
->addr_iter
->iaaddr
.address
,
163 sizeof(struct in6_addr
));
164 *lifetime_preferred
=
165 be32toh(lease
->addr_iter
->iaaddr
.lifetime_preferred
);
166 *lifetime_valid
= be32toh(lease
->addr_iter
->iaaddr
.lifetime_valid
);
168 lease
->addr_iter
= lease
->addr_iter
->addresses_next
;
173 void sd_dhcp6_lease_reset_address_iter(sd_dhcp6_lease
*lease
) {
175 lease
->addr_iter
= lease
->ia
.addresses
;
178 int dhcp6_lease_set_dns(sd_dhcp6_lease
*lease
, uint8_t *optval
, size_t optlen
) {
181 assert_return(lease
, -EINVAL
);
182 assert_return(optval
, -EINVAL
);
187 r
= dhcp6_option_parse_ip6addrs(optval
, optlen
, &lease
->dns
,
189 &lease
->dns_allocated
);
191 log_dhcp6_client(client
, "Invalid DNS server option: %s",
197 lease
->dns_count
= r
;
202 int sd_dhcp6_lease_get_dns(sd_dhcp6_lease
*lease
, struct in6_addr
**addrs
) {
203 assert_return(lease
, -EINVAL
);
204 assert_return(addrs
, -EINVAL
);
206 if (lease
->dns_count
) {
208 return lease
->dns_count
;
214 int dhcp6_lease_set_domains(sd_dhcp6_lease
*lease
, uint8_t *optval
,
219 assert_return(lease
, -EINVAL
);
220 assert_return(optval
, -EINVAL
);
225 r
= dhcp6_option_parse_domainname(optval
, optlen
, &domains
);
229 free(lease
->domains
);
230 lease
->domains
= domains
;
231 lease
->domains_count
= r
;
236 int sd_dhcp6_lease_get_domains(sd_dhcp6_lease
*lease
, char ***domains
) {
237 assert_return(lease
, -EINVAL
);
238 assert_return(domains
, -EINVAL
);
240 if (lease
->domains_count
) {
241 *domains
= lease
->domains
;
242 return lease
->domains_count
;
248 int dhcp6_lease_set_ntp(sd_dhcp6_lease
*lease
, uint8_t *optval
, size_t optlen
) {
254 assert_return(lease
, -EINVAL
);
255 assert_return(optval
, -EINVAL
);
257 lease
->ntp
= mfree(lease
->ntp
);
258 lease
->ntp_count
= 0;
259 lease
->ntp_allocated
= 0;
261 while ((r
= dhcp6_option_parse(&optval
, &optlen
, &subopt
, &sublen
,
267 case DHCP6_NTP_SUBOPTION_SRV_ADDR
:
268 case DHCP6_NTP_SUBOPTION_MC_ADDR
:
272 s
= dhcp6_option_parse_ip6addrs(subval
, sublen
,
275 &lease
->ntp_allocated
);
279 lease
->ntp_count
= s
;
283 case DHCP6_NTP_SUBOPTION_SRV_FQDN
:
284 r
= dhcp6_option_parse_domainname(subval
, sublen
,
289 lease
->ntp_fqdn
= strv_free(lease
->ntp_fqdn
);
290 lease
->ntp_fqdn
= servers
;
291 lease
->ntp_fqdn_count
= r
;
303 int dhcp6_lease_set_sntp(sd_dhcp6_lease
*lease
, uint8_t *optval
, size_t optlen
) {
306 assert_return(lease
, -EINVAL
);
307 assert_return(optval
, -EINVAL
);
312 if (lease
->ntp
|| lease
->ntp_fqdn
) {
313 log_dhcp6_client(client
, "NTP information already provided");
318 log_dhcp6_client(client
, "Using deprecated SNTP information");
320 r
= dhcp6_option_parse_ip6addrs(optval
, optlen
, &lease
->ntp
,
322 &lease
->ntp_allocated
);
324 log_dhcp6_client(client
, "Invalid SNTP server option: %s",
330 lease
->ntp_count
= r
;
335 int sd_dhcp6_lease_get_ntp_addrs(sd_dhcp6_lease
*lease
,
336 struct in6_addr
**addrs
) {
337 assert_return(lease
, -EINVAL
);
338 assert_return(addrs
, -EINVAL
);
340 if (lease
->ntp_count
) {
342 return lease
->ntp_count
;
348 int sd_dhcp6_lease_get_ntp_fqdn(sd_dhcp6_lease
*lease
, char ***ntp_fqdn
) {
349 assert_return(lease
, -EINVAL
);
350 assert_return(ntp_fqdn
, -EINVAL
);
352 if (lease
->ntp_fqdn_count
) {
353 *ntp_fqdn
= lease
->ntp_fqdn
;
354 return lease
->ntp_fqdn_count
;
360 sd_dhcp6_lease
*sd_dhcp6_lease_ref(sd_dhcp6_lease
*lease
) {
365 assert(lease
->n_ref
>= 1);
371 sd_dhcp6_lease
*sd_dhcp6_lease_unref(sd_dhcp6_lease
*lease
) {
376 assert(lease
->n_ref
>= 1);
379 if (lease
->n_ref
> 0)
382 free(lease
->serverid
);
383 dhcp6_lease_free_ia(&lease
->ia
);
387 lease
->domains
= strv_free(lease
->domains
);
391 lease
->ntp_fqdn
= strv_free(lease
->ntp_fqdn
);
395 int dhcp6_lease_new(sd_dhcp6_lease
**ret
) {
396 sd_dhcp6_lease
*lease
;
398 lease
= new0(sd_dhcp6_lease
, 1);
404 LIST_HEAD_INIT(lease
->ia
.addresses
);