2 * ustream-ssl - library for SSL over ustream
4 * Copyright (C) 2012 Felix Fietkau <nbd@openwrt.org>
6 * Permission to use, copy, modify, and/or distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
21 #include <libubox/ustream.h>
23 #include "ustream-ssl.h"
24 #include "ustream-internal.h"
26 static void ustream_ssl_error_cb(struct uloop_timeout
*t
)
28 struct ustream_ssl
*us
= container_of(t
, struct ustream_ssl
, error_timer
);
29 static char buffer
[128];
30 int error
= us
->error
;
33 us
->notify_error(us
, error
, __ustream_ssl_strerror(us
->error
, buffer
, sizeof(buffer
)));
36 static void ustream_ssl_check_conn(struct ustream_ssl
*us
)
38 if (us
->connected
|| us
->error
)
41 if (__ustream_ssl_connect(us
) == U_SSL_OK
) {
43 if (us
->notify_connected
)
44 us
->notify_connected(us
);
45 ustream_write_pending(&us
->stream
);
49 static bool __ustream_ssl_poll(struct ustream
*s
)
51 struct ustream_ssl
*us
= container_of(s
->next
, struct ustream_ssl
, stream
);
56 ustream_ssl_check_conn(us
);
57 if (!us
->connected
|| us
->error
)
61 buf
= ustream_reserve(&us
->stream
, 1, &len
);
65 ret
= __ustream_ssl_read(us
, buf
, len
);
72 us
->stream
.eof
= true;
73 ustream_state_change(&us
->stream
);
76 ustream_fill_read(&us
->stream
, ret
);
85 static void ustream_ssl_notify_read(struct ustream
*s
, int bytes
)
87 __ustream_ssl_poll(s
);
90 static void ustream_ssl_notify_write(struct ustream
*s
, int bytes
)
92 struct ustream_ssl
*us
= container_of(s
->next
, struct ustream_ssl
, stream
);
94 ustream_ssl_check_conn(us
);
95 ustream_write_pending(s
->next
);
98 static void ustream_ssl_notify_state(struct ustream
*s
)
100 s
->next
->write_error
= true;
101 ustream_state_change(s
->next
);
104 static int ustream_ssl_write(struct ustream
*s
, const char *buf
, int len
, bool more
)
106 struct ustream_ssl
*us
= container_of(s
, struct ustream_ssl
, stream
);
108 if (!us
->connected
|| us
->error
)
111 if (us
->conn
->w
.data_bytes
)
114 return __ustream_ssl_write(us
, buf
, len
);
117 static void ustream_ssl_set_read_blocked(struct ustream
*s
)
119 struct ustream_ssl
*us
= container_of(s
, struct ustream_ssl
, stream
);
121 ustream_set_read_blocked(us
->conn
, !!s
->read_blocked
);
124 static void ustream_ssl_free(struct ustream
*s
)
126 struct ustream_ssl
*us
= container_of(s
, struct ustream_ssl
, stream
);
129 us
->conn
->next
= NULL
;
130 us
->conn
->notify_read
= NULL
;
131 us
->conn
->notify_write
= NULL
;
132 us
->conn
->notify_state
= NULL
;
135 uloop_timeout_cancel(&us
->error_timer
);
136 __ustream_ssl_session_free(us
->ssl
);
143 us
->connected
= false;
145 us
->valid_cert
= false;
146 us
->valid_cn
= false;
149 static bool ustream_ssl_poll(struct ustream
*s
)
151 struct ustream_ssl
*us
= container_of(s
, struct ustream_ssl
, stream
);
154 fd_poll
= ustream_poll(us
->conn
);
155 return __ustream_ssl_poll(s
) || fd_poll
;
158 static void ustream_ssl_stream_init(struct ustream_ssl
*us
)
160 struct ustream
*conn
= us
->conn
;
161 struct ustream
*s
= &us
->stream
;
163 conn
->notify_read
= ustream_ssl_notify_read
;
164 conn
->notify_write
= ustream_ssl_notify_write
;
165 conn
->notify_state
= ustream_ssl_notify_state
;
167 s
->free
= ustream_ssl_free
;
168 s
->write
= ustream_ssl_write
;
169 s
->poll
= ustream_ssl_poll
;
170 s
->set_read_blocked
= ustream_ssl_set_read_blocked
;
171 ustream_init_defaults(s
);
174 static int _ustream_ssl_init(struct ustream_ssl
*us
, struct ustream
*conn
, struct ustream_ssl_ctx
*ctx
, bool server
)
176 us
->error_timer
.cb
= ustream_ssl_error_cb
;
181 us
->ssl
= __ustream_ssl_session_new(us
->ctx
);
185 conn
->next
= &us
->stream
;
186 ustream_set_io(ctx
, us
->ssl
, conn
);
187 ustream_ssl_stream_init(us
);
188 ustream_ssl_check_conn(us
);
193 static int _ustream_ssl_set_peer_cn(struct ustream_ssl
*us
, const char *name
)
195 us
->peer_cn
= strdup(name
);
196 __ustream_ssl_update_peer_cn(us
);
201 const struct ustream_ssl_ops ustream_ssl_ops
= {
202 .context_new
= __ustream_ssl_context_new
,
203 .context_set_crt_file
= __ustream_ssl_set_crt_file
,
204 .context_set_key_file
= __ustream_ssl_set_key_file
,
205 .context_add_ca_crt_file
= __ustream_ssl_add_ca_crt_file
,
206 .context_free
= __ustream_ssl_context_free
,
207 .init
= _ustream_ssl_init
,
208 .set_peer_cn
= _ustream_ssl_set_peer_cn
,