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-io.h"
24 #include "ustream-ssl.h"
26 #ifdef CYASSL_OPENSSL_H_
28 /* not defined in the header file */
29 typedef int (*CallbackIORecv
)(char *buf
, int sz
, void *ctx
);
30 typedef int (*CallbackIOSend
)(char *buf
, int sz
, void *ctx
);
32 void SetCallbackIORecv_Ctx(SSL_CTX
*, CallbackIORecv
);
33 void SetCallbackIOSend_Ctx(SSL_CTX
*, CallbackIOSend
);
34 void SetCallbackIO_ReadCtx(SSL
* ssl
, void *rctx
);
35 void SetCallbackIO_WriteCtx(SSL
* ssl
, void *wctx
);
37 static int s_ustream_read(char *buf
, int len
, void *ctx
)
39 struct ustream
*s
= ctx
;
46 sbuf
= ustream_get_read_buf(s
, &slen
);
53 memcpy(buf
, sbuf
, slen
);
54 ustream_consume(s
, slen
);
59 static int s_ustream_write(char *buf
, int len
, void *ctx
)
61 struct ustream
*s
= ctx
;
63 return ustream_write(s
, buf
, len
, false);
66 void ustream_set_io(SSL_CTX
*ctx
, SSL
*ssl
, struct ustream
*conn
)
68 SetCallbackIO_ReadCtx(ssl
, conn
);
69 SetCallbackIO_WriteCtx(ssl
, conn
);
70 SetCallbackIORecv_Ctx(ctx
, s_ustream_read
);
71 SetCallbackIOSend_Ctx(ctx
, s_ustream_write
);
87 s_ustream_free(BIO
*b
)
99 s_ustream_read(BIO
*b
, char *buf
, int len
)
105 if (!buf
|| len
<= 0)
108 s
= (struct ustream
*)b
->ptr
;
112 sbuf
= ustream_get_read_buf(s
, &slen
);
114 BIO_clear_retry_flags(b
);
116 BIO_set_retry_read(b
);
123 memcpy(buf
, sbuf
, slen
);
124 ustream_consume(s
, slen
);
130 s_ustream_write(BIO
*b
, const char *buf
, int len
)
134 if (!buf
|| len
<= 0)
137 s
= (struct ustream
*)b
->ptr
;
141 return ustream_write(s
, buf
, len
, false);
145 s_ustream_gets(BIO
*b
, char *buf
, int len
)
151 s_ustream_puts(BIO
*b
, const char *str
)
153 return s_ustream_write(b
, str
, strlen(str
));
156 static long s_ustream_ctrl(BIO
*b
, int cmd
, long num
, void *ptr
)
166 static BIO_METHOD methods_ustream
= {
167 100 | BIO_TYPE_SOURCE_SINK
,
179 static BIO
*ustream_bio_new(struct ustream
*s
)
183 bio
= BIO_new(&methods_ustream
);
188 void ustream_set_io(SSL_CTX
*ctx
, SSL
*ssl
, struct ustream
*conn
)
190 BIO
*bio
= ustream_bio_new(conn
);
191 SSL_set_bio(ssl
, bio
, bio
);