android: Forward initiator flag to libipsec when adding IPsec SA
[strongswan.git] / src / frontends / android / jni / libandroidbridge / kernel / android_ipsec.c
1 /*
2 * Copyright (C) 2012 Tobias Brunner
3 * Copyright (C) 2012 Giuliano Grassi
4 * Copyright (C) 2012 Ralf Sager
5 * Hochschule fuer Technik Rapperswil
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the
9 * Free Software Foundation; either version 2 of the License, or (at your
10 * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. *
11 * This program is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
13 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * for more details.
15 */
16
17 #include "android_ipsec.h"
18 #include "../charonservice.h"
19
20 #include <utils/debug.h>
21 #include <library.h>
22 #include <hydra.h>
23 #include <ipsec.h>
24
25 typedef struct private_kernel_android_ipsec_t private_kernel_android_ipsec_t;
26
27 struct private_kernel_android_ipsec_t {
28
29 /**
30 * Public kernel interface
31 */
32 kernel_android_ipsec_t public;
33
34 /**
35 * Listener for lifetime expire events
36 */
37 ipsec_event_listener_t ipsec_listener;
38 };
39
40 /**
41 * Callback registrered with libipsec.
42 */
43 void expire(u_int32_t reqid, u_int8_t protocol, u_int32_t spi, bool hard)
44 {
45 hydra->kernel_interface->expire(hydra->kernel_interface, reqid, protocol,
46 spi, hard);
47 }
48
49 METHOD(kernel_ipsec_t, get_spi, status_t,
50 private_kernel_android_ipsec_t *this, host_t *src, host_t *dst,
51 u_int8_t protocol, u_int32_t reqid, u_int32_t *spi)
52 {
53 return ipsec->sas->get_spi(ipsec->sas, src, dst, protocol, reqid, spi);
54 }
55
56 METHOD(kernel_ipsec_t, get_cpi, status_t,
57 private_kernel_android_ipsec_t *this, host_t *src, host_t *dst,
58 u_int32_t reqid, u_int16_t *cpi)
59 {
60 return NOT_SUPPORTED;
61 }
62
63 METHOD(kernel_ipsec_t, add_sa, status_t,
64 private_kernel_android_ipsec_t *this, host_t *src, host_t *dst,
65 u_int32_t spi, u_int8_t protocol, u_int32_t reqid, mark_t mark,
66 u_int32_t tfc, lifetime_cfg_t *lifetime, u_int16_t enc_alg, chunk_t enc_key,
67 u_int16_t int_alg, chunk_t int_key, ipsec_mode_t mode, u_int16_t ipcomp,
68 u_int16_t cpi, bool initiator, bool encap, bool esn, bool inbound,
69 traffic_selector_t *src_ts, traffic_selector_t *dst_ts)
70 {
71 return ipsec->sas->add_sa(ipsec->sas, src, dst, spi, protocol, reqid, mark,
72 tfc, lifetime, enc_alg, enc_key, int_alg, int_key,
73 mode, ipcomp, cpi, initiator, encap, esn, inbound,
74 src_ts, dst_ts);
75 }
76
77 METHOD(kernel_ipsec_t, update_sa, status_t,
78 private_kernel_android_ipsec_t *this, u_int32_t spi, u_int8_t protocol,
79 u_int16_t cpi, host_t *src, host_t *dst, host_t *new_src, host_t *new_dst,
80 bool encap, bool new_encap, mark_t mark)
81 {
82 return ipsec->sas->update_sa(ipsec->sas, spi, protocol, cpi, src, dst,
83 new_src, new_dst, encap, new_encap, mark);
84 }
85
86 METHOD(kernel_ipsec_t, query_sa, status_t,
87 private_kernel_android_ipsec_t *this, host_t *src, host_t *dst,
88 u_int32_t spi, u_int8_t protocol, mark_t mark,
89 u_int64_t *bytes, u_int64_t *packets, u_int32_t *time)
90 {
91 return NOT_SUPPORTED;
92 }
93
94 METHOD(kernel_ipsec_t, del_sa, status_t,
95 private_kernel_android_ipsec_t *this, host_t *src, host_t *dst,
96 u_int32_t spi, u_int8_t protocol, u_int16_t cpi, mark_t mark)
97 {
98 return ipsec->sas->del_sa(ipsec->sas, src, dst, spi, protocol, cpi, mark);
99 }
100
101 METHOD(kernel_ipsec_t, flush_sas, status_t,
102 private_kernel_android_ipsec_t *this)
103 {
104 return ipsec->sas->flush_sas(ipsec->sas);
105 }
106
107 METHOD(kernel_ipsec_t, add_policy, status_t,
108 private_kernel_android_ipsec_t *this, host_t *src, host_t *dst,
109 traffic_selector_t *src_ts, traffic_selector_t *dst_ts,
110 policy_dir_t direction, policy_type_t type, ipsec_sa_cfg_t *sa, mark_t mark,
111 policy_priority_t priority)
112 {
113 return ipsec->policies->add_policy(ipsec->policies, src, dst, src_ts,
114 dst_ts, direction, type, sa, mark,
115 priority);
116 }
117
118 METHOD(kernel_ipsec_t, query_policy, status_t,
119 private_kernel_android_ipsec_t *this, traffic_selector_t *src_ts,
120 traffic_selector_t *dst_ts, policy_dir_t direction, mark_t mark,
121 u_int32_t *use_time)
122 {
123 return NOT_SUPPORTED;
124 }
125
126 METHOD(kernel_ipsec_t, del_policy, status_t,
127 private_kernel_android_ipsec_t *this, traffic_selector_t *src_ts,
128 traffic_selector_t *dst_ts, policy_dir_t direction, u_int32_t reqid,
129 mark_t mark, policy_priority_t priority)
130 {
131 return ipsec->policies->del_policy(ipsec->policies, src_ts, dst_ts,
132 direction, reqid, mark, priority);
133 }
134
135 METHOD(kernel_ipsec_t, flush_policies, status_t,
136 private_kernel_android_ipsec_t *this)
137 {
138 ipsec->policies->flush_policies(ipsec->policies);
139 return SUCCESS;
140 }
141
142 METHOD(kernel_ipsec_t, bypass_socket, bool,
143 private_kernel_android_ipsec_t *this, int fd, int family)
144 {
145 return charonservice->bypass_socket(charonservice, fd, family);
146 }
147
148 METHOD(kernel_ipsec_t, enable_udp_decap, bool,
149 private_kernel_android_ipsec_t *this, int fd, int family, u_int16_t port)
150 {
151 return NOT_SUPPORTED;
152 }
153
154 METHOD(kernel_ipsec_t, destroy, void,
155 private_kernel_android_ipsec_t *this)
156 {
157 ipsec->events->unregister_listener(ipsec->events, &this->ipsec_listener);
158 free(this);
159 }
160
161 /*
162 * Described in header.
163 */
164 kernel_android_ipsec_t *kernel_android_ipsec_create()
165 {
166 private_kernel_android_ipsec_t *this;
167
168 INIT(this,
169 .public = {
170 .interface = {
171 .get_spi = _get_spi,
172 .get_cpi = _get_cpi,
173 .add_sa = _add_sa,
174 .update_sa = _update_sa,
175 .query_sa = _query_sa,
176 .del_sa = _del_sa,
177 .flush_sas = _flush_sas,
178 .add_policy = _add_policy,
179 .query_policy = _query_policy,
180 .del_policy = _del_policy,
181 .flush_policies = _flush_policies,
182 .bypass_socket = _bypass_socket,
183 .enable_udp_decap = _enable_udp_decap,
184 .destroy = _destroy,
185 },
186 },
187 .ipsec_listener = {
188 .expire = expire,
189 },
190 );
191
192 ipsec->events->register_listener(ipsec->events, &this->ipsec_listener);
193
194 return &this->public;
195 }