2 This file is part of systemd.
4 Copyright (C) 2014 Tom Gundersen
5 Copyright (C) 2014 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/>.
25 #include "dhcp6-lease-internal.h"
27 int dhcp6_lease_clear_timers(DHCP6IA *ia) {
28 assert_return(ia, -EINVAL);
30 ia->timeout_t1 = sd_event_source_unref(ia->timeout_t1);
31 ia->timeout_t2 = sd_event_source_unref(ia->timeout_t2);
36 int dhcp6_lease_ia_rebind_expire(const DHCP6IA *ia, uint32_t *expire) {
38 uint32_t valid = 0, t;
40 assert_return(ia, -EINVAL);
41 assert_return(expire, -EINVAL);
43 LIST_FOREACH(addresses, addr, ia->addresses) {
44 t = be32toh(addr->lifetime_valid);
49 t = be32toh(ia->lifetime_t2);
58 DHCP6IA *dhcp6_lease_free_ia(DHCP6IA *ia) {
59 DHCP6Address *address;
64 dhcp6_lease_clear_timers(ia);
66 while (ia->addresses) {
67 address = ia->addresses;
69 LIST_REMOVE(addresses, ia->addresses, address);
77 int dhcp6_lease_set_serverid(sd_dhcp6_lease *lease, const uint8_t *id,
79 assert_return(lease, -EINVAL);
80 assert_return(id, -EINVAL);
82 free(lease->serverid);
84 lease->serverid = memdup(id, len);
88 lease->serverid_len = len;
93 int dhcp6_lease_get_serverid(sd_dhcp6_lease *lease, uint8_t **id, size_t *len) {
94 assert_return(lease, -EINVAL);
95 assert_return(id, -EINVAL);
96 assert_return(len, -EINVAL);
98 *id = lease->serverid;
99 *len = lease->serverid_len;
104 int dhcp6_lease_set_preference(sd_dhcp6_lease *lease, uint8_t preference) {
105 assert_return(lease, -EINVAL);
107 lease->preference = preference;
112 int dhcp6_lease_get_preference(sd_dhcp6_lease *lease, uint8_t *preference) {
113 assert_return(lease, -EINVAL);
114 assert_return(preference, -EINVAL);
116 *preference = lease->preference;
121 int dhcp6_lease_get_iaid(sd_dhcp6_lease *lease, be32_t *iaid) {
122 assert_return(lease, -EINVAL);
123 assert_return(iaid, -EINVAL);
125 *iaid = lease->ia.id;
130 int sd_dhcp6_lease_get_next_address(sd_dhcp6_lease *lease,
131 struct in6_addr *addr,
132 uint32_t *lifetime_preferred,
133 uint32_t *lifetime_valid) {
134 assert_return(lease, -EINVAL);
135 assert_return(addr, -EINVAL);
136 assert_return(lifetime_preferred, -EINVAL);
137 assert_return(lifetime_valid, -EINVAL);
139 if (!lease->addr_iter)
142 memcpy(addr, &lease->addr_iter->address, sizeof(struct in6_addr));
143 *lifetime_preferred = be32toh(lease->addr_iter->lifetime_preferred);
144 *lifetime_valid = be32toh(lease->addr_iter->lifetime_valid);
146 lease->addr_iter = lease->addr_iter->addresses_next;
151 int sd_dhcp6_lease_get_first_address(sd_dhcp6_lease *lease,
152 struct in6_addr *addr,
153 uint32_t *lifetime_preferred,
154 uint32_t *lifetime_valid) {
155 assert_return(lease, -EINVAL);
156 assert_return(addr, -EINVAL);
157 assert_return(lifetime_preferred, -EINVAL);
158 assert_return(lifetime_valid, -EINVAL);
160 if (!lease->ia.addresses)
163 lease->addr_iter = lease->ia.addresses;
165 return sd_dhcp6_lease_get_next_address(lease, addr, lifetime_preferred,
169 sd_dhcp6_lease *sd_dhcp6_lease_ref(sd_dhcp6_lease *lease) {
171 assert_se(REFCNT_INC(lease->n_ref) >= 2);
176 sd_dhcp6_lease *sd_dhcp6_lease_unref(sd_dhcp6_lease *lease) {
177 if (lease && REFCNT_DEC(lease->n_ref) <= 0) {
178 free(lease->serverid);
179 dhcp6_lease_free_ia(&lease->ia);
187 int dhcp6_lease_new(sd_dhcp6_lease **ret) {
188 sd_dhcp6_lease *lease;
190 lease = new0(sd_dhcp6_lease, 1);
194 lease->n_ref = REFCNT_INIT;
196 LIST_HEAD_INIT(lease->ia.addresses);