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 DHCP6IA *dhcp6_lease_free_ia(DHCP6IA *ia) {
37 DHCP6Address *address;
42 dhcp6_lease_clear_timers(ia);
44 while (ia->addresses) {
45 address = ia->addresses;
47 LIST_REMOVE(addresses, ia->addresses, address);
55 int dhcp6_lease_set_serverid(sd_dhcp6_lease *lease, const uint8_t *id,
57 assert_return(lease, -EINVAL);
58 assert_return(id, -EINVAL);
60 free(lease->serverid);
62 lease->serverid = memdup(id, len);
66 lease->serverid_len = len;
71 int dhcp6_lease_get_serverid(sd_dhcp6_lease *lease, uint8_t **id, size_t *len) {
72 assert_return(lease, -EINVAL);
73 assert_return(id, -EINVAL);
74 assert_return(len, -EINVAL);
76 *id = lease->serverid;
77 *len = lease->serverid_len;
82 int dhcp6_lease_set_preference(sd_dhcp6_lease *lease, uint8_t preference) {
83 assert_return(lease, -EINVAL);
85 lease->preference = preference;
90 int dhcp6_lease_get_preference(sd_dhcp6_lease *lease, uint8_t *preference) {
91 assert_return(lease, -EINVAL);
92 assert_return(preference, -EINVAL);
94 *preference = lease->preference;
99 int dhcp6_lease_get_iaid(sd_dhcp6_lease *lease, be32_t *iaid) {
100 assert_return(lease, -EINVAL);
101 assert_return(iaid, -EINVAL);
103 *iaid = lease->ia.id;
108 int sd_dhcp6_lease_get_next_address(sd_dhcp6_lease *lease,
109 struct in6_addr *addr,
110 uint32_t *lifetime_preferred,
111 uint32_t *lifetime_valid) {
112 assert_return(lease, -EINVAL);
113 assert_return(addr, -EINVAL);
114 assert_return(lifetime_preferred, -EINVAL);
115 assert_return(lifetime_valid, -EINVAL);
117 if (!lease->addr_iter)
120 memcpy(addr, &lease->addr_iter->address, sizeof(struct in6_addr));
121 *lifetime_preferred = be32toh(lease->addr_iter->lifetime_preferred);
122 *lifetime_valid = be32toh(lease->addr_iter->lifetime_valid);
124 lease->addr_iter = lease->addr_iter->addresses_next;
129 int sd_dhcp6_lease_get_first_address(sd_dhcp6_lease *lease,
130 struct in6_addr *addr,
131 uint32_t *lifetime_preferred,
132 uint32_t *lifetime_valid) {
133 assert_return(lease, -EINVAL);
134 assert_return(addr, -EINVAL);
135 assert_return(lifetime_preferred, -EINVAL);
136 assert_return(lifetime_valid, -EINVAL);
138 if (!lease->ia.addresses)
141 lease->addr_iter = lease->ia.addresses;
143 return sd_dhcp6_lease_get_next_address(lease, addr, lifetime_preferred,
147 sd_dhcp6_lease *sd_dhcp6_lease_ref(sd_dhcp6_lease *lease) {
149 assert_se(REFCNT_INC(lease->n_ref) >= 2);
154 sd_dhcp6_lease *sd_dhcp6_lease_unref(sd_dhcp6_lease *lease) {
155 if (lease && REFCNT_DEC(lease->n_ref) <= 0) {
156 free(lease->serverid);
157 dhcp6_lease_free_ia(&lease->ia);
165 int dhcp6_lease_new(sd_dhcp6_lease **ret) {
166 sd_dhcp6_lease *lease;
168 lease = new0(sd_dhcp6_lease, 1);
172 lease->n_ref = REFCNT_INIT;
174 LIST_HEAD_INIT(lease->ia.addresses);