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 <openssl/x509v3.h>
22 #include "ustream-ssl.h"
23 #include "ustream-internal.h"
25 __hidden
struct ustream_ssl_ctx
*
26 __ustream_ssl_context_new(bool server
)
28 static bool _init
= false;
33 SSL_load_error_strings();
38 #ifdef CYASSL_OPENSSL_H_
40 m
= SSLv23_server_method();
42 m
= SSLv23_client_method();
45 m
= TLSv1_server_method();
47 m
= TLSv1_client_method();
50 c
= SSL_CTX_new((void *) m
);
54 SSL_CTX_set_verify(c
, SSL_VERIFY_NONE
, NULL
);
55 SSL_CTX_set_quiet_shutdown(c
, 1);
60 __hidden
int __ustream_ssl_add_ca_crt_file(struct ustream_ssl_ctx
*ctx
, const char *file
)
64 ret
= SSL_CTX_load_verify_locations((void *) ctx
, file
, NULL
);
71 __hidden
int __ustream_ssl_set_crt_file(struct ustream_ssl_ctx
*ctx
, const char *file
)
75 ret
= SSL_CTX_use_certificate_chain_file((void *) ctx
, file
);
77 ret
= SSL_CTX_use_certificate_file((void *) ctx
, file
, SSL_FILETYPE_ASN1
);
85 __hidden
int __ustream_ssl_set_key_file(struct ustream_ssl_ctx
*ctx
, const char *file
)
89 ret
= SSL_CTX_use_PrivateKey_file((void *) ctx
, file
, SSL_FILETYPE_PEM
);
91 ret
= SSL_CTX_use_PrivateKey_file((void *) ctx
, file
, SSL_FILETYPE_ASN1
);
99 __hidden
void __ustream_ssl_context_free(struct ustream_ssl_ctx
*ctx
)
101 SSL_CTX_free((void *) ctx
);
104 void __ustream_ssl_session_free(void *ssl
)
110 static void ustream_ssl_error(struct ustream_ssl
*us
, int ret
)
113 uloop_timeout_set(&us
->error_timer
, 0);
116 #ifndef CYASSL_OPENSSL_H_
118 static bool ustream_ssl_verify_cn(struct ustream_ssl
*us
, X509
*cert
)
125 ret
= X509_check_host(cert
, us
->peer_cn
, 0, X509_CHECK_FLAG_NO_PARTIAL_WILDCARDS
, NULL
);
130 static void ustream_ssl_verify_cert(struct ustream_ssl
*us
)
136 res
= SSL_get_verify_result(ssl
);
137 if (res
!= X509_V_OK
) {
138 if (us
->notify_verify_error
)
139 us
->notify_verify_error(us
, res
, X509_verify_cert_error_string(res
));
143 cert
= SSL_get_peer_certificate(ssl
);
147 us
->valid_cert
= true;
148 us
->valid_cn
= ustream_ssl_verify_cn(us
, cert
);
154 __hidden
enum ssl_conn_status
__ustream_ssl_connect(struct ustream_ssl
*us
)
162 r
= SSL_connect(ssl
);
165 #ifndef CYASSL_OPENSSL_H_
166 ustream_ssl_verify_cert(us
);
171 r
= SSL_get_error(ssl
, r
);
172 if (r
== SSL_ERROR_WANT_READ
|| r
== SSL_ERROR_WANT_WRITE
)
173 return U_SSL_PENDING
;
175 ustream_ssl_error(us
, r
);
179 __hidden
int __ustream_ssl_write(struct ustream_ssl
*us
, const char *buf
, int len
)
182 int ret
= SSL_write(ssl
, buf
, len
);
185 int err
= SSL_get_error(ssl
, ret
);
186 if (err
== SSL_ERROR_WANT_WRITE
)
189 ustream_ssl_error(us
, err
);
196 __hidden
int __ustream_ssl_read(struct ustream_ssl
*us
, char *buf
, int len
)
198 int ret
= SSL_read(us
->ssl
, buf
, len
);
201 ret
= SSL_get_error(us
->ssl
, ret
);
202 if (ret
== SSL_ERROR_WANT_READ
)
203 return U_SSL_PENDING
;
205 ustream_ssl_error(us
, ret
);