aboutsummaryrefslogtreecommitdiff
path: root/lib/vtls/vtls.h
blob: 823c041eda5538096093dcdd4a030676e1ed4c61 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
#ifndef HEADER_CURL_VTLS_H
#define HEADER_CURL_VTLS_H
/***************************************************************************
 *                                  _   _ ____  _
 *  Project                     ___| | | |  _ \| |
 *                             / __| | | | |_) | |
 *                            | (__| |_| |  _ <| |___
 *                             \___|\___/|_| \_\_____|
 *
 * Copyright (C) 1998 - 2013, Daniel Stenberg, <daniel@haxx.se>, et al.
 *
 * This software is licensed as described in the file COPYING, which
 * you should have received as part of this distribution. The terms
 * are also available at http://curl.haxx.se/docs/copyright.html.
 *
 * You may opt to use, copy, modify, merge, publish, distribute and/or sell
 * copies of the Software, and permit persons to whom the Software is
 * furnished to do so, under the terms of the COPYING file.
 *
 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
 * KIND, either express or implied.
 *
 ***************************************************************************/
#include "curl_setup.h"

#ifndef MD5_DIGEST_LENGTH
#define MD5_DIGEST_LENGTH 16 /* fixed size */
#endif

/* see http://tools.ietf.org/html/draft-ietf-tls-applayerprotoneg-04 */
#define ALPN_HTTP_1_1_LENGTH 8
#define ALPN_HTTP_1_1 "http/1.0"

bool Curl_ssl_config_matches(struct ssl_config_data* data,
                             struct ssl_config_data* needle);
bool Curl_clone_ssl_config(struct ssl_config_data* source,
                           struct ssl_config_data* dest);
void Curl_free_ssl_config(struct ssl_config_data* sslc);

unsigned int Curl_rand(struct SessionHandle *);

#ifdef USE_SSL
int Curl_ssl_init(void);
void Curl_ssl_cleanup(void);
CURLcode Curl_ssl_connect(struct connectdata *conn, int sockindex);
CURLcode Curl_ssl_connect_nonblocking(struct connectdata *conn,
                                      int sockindex,
                                      bool *done);
/* tell the SSL stuff to close down all open information regarding
   connections (and thus session ID caching etc) */
void Curl_ssl_close_all(struct SessionHandle *data);
void Curl_ssl_close(struct connectdata *conn, int sockindex);
CURLcode Curl_ssl_shutdown(struct connectdata *conn, int sockindex);
CURLcode Curl_ssl_set_engine(struct SessionHandle *data, const char *engine);
/* Sets engine as default for all SSL operations */
CURLcode Curl_ssl_set_engine_default(struct SessionHandle *data);
struct curl_slist *Curl_ssl_engines_list(struct SessionHandle *data);

/* init the SSL session ID cache */
CURLcode Curl_ssl_initsessions(struct SessionHandle *, size_t);
size_t Curl_ssl_version(char *buffer, size_t size);
bool Curl_ssl_data_pending(const struct connectdata *conn,
                           int connindex);
int Curl_ssl_check_cxn(struct connectdata *conn);

/* Certificate information list handling. */

void Curl_ssl_free_certinfo(struct SessionHandle *data);
int Curl_ssl_init_certinfo(struct SessionHandle * data, int num);
CURLcode Curl_ssl_push_certinfo_len(struct SessionHandle * data, int certnum,
                                    const char * label, const char * value,
                                    size_t valuelen);
CURLcode Curl_ssl_push_certinfo(struct SessionHandle * data, int certnum,
                                const char * label, const char * value);

/* Functions to be used by SSL library adaptation functions */

/* extract a session ID */
int Curl_ssl_getsessionid(struct connectdata *conn,
                          void **ssl_sessionid,
                          size_t *idsize) /* set 0 if unknown */;
/* add a new session ID */
CURLcode Curl_ssl_addsessionid(struct connectdata *conn,
                               void *ssl_sessionid,
                               size_t idsize);
/* Kill a single session ID entry in the cache */
void Curl_ssl_kill_session(struct curl_ssl_session *session);
/* delete a session from the cache */
void Curl_ssl_delsessionid(struct connectdata *conn, void *ssl_sessionid);

/* get N random bytes into the buffer */
void Curl_ssl_random(struct SessionHandle *data, unsigned char *buffer,
                     size_t length);
void Curl_ssl_md5sum(unsigned char *tmp, /* input */
                     size_t tmplen,
                     unsigned char *md5sum, /* output */
                     size_t md5len);

#define SSL_SHUTDOWN_TIMEOUT 10000 /* ms */

#ifdef have_curlssl_random
#define HAVE_CURL_SSL_RANDOM
#endif
#ifdef have_curlssl_md5sum
#define HAVE_CURL_SSL_MD5SUM
#endif

#else
/* When SSL support is not present, just define away these function calls */
#define Curl_ssl_init() 1
#define Curl_ssl_cleanup() Curl_nop_stmt
#define Curl_ssl_connect(x,y) CURLE_NOT_BUILT_IN
#define Curl_ssl_close_all(x) Curl_nop_stmt
#define Curl_ssl_close(x,y) Curl_nop_stmt
#define Curl_ssl_shutdown(x,y) CURLE_NOT_BUILT_IN
#define Curl_ssl_set_engine(x,y) CURLE_NOT_BUILT_IN
#define Curl_ssl_set_engine_default(x) CURLE_NOT_BUILT_IN
#define Curl_ssl_engines_list(x) NULL
#define Curl_ssl_send(a,b,c,d,e) -1
#define Curl_ssl_recv(a,b,c,d,e) -1
#define Curl_ssl_initsessions(x,y) CURLE_OK
#define Curl_ssl_version(x,y) 0
#define Curl_ssl_data_pending(x,y) 0
#define Curl_ssl_check_cxn(x) 0
#define Curl_ssl_free_certinfo(x) Curl_nop_stmt
#define Curl_ssl_connect_nonblocking(x,y,z) CURLE_NOT_BUILT_IN
#define Curl_ssl_kill_session(x) Curl_nop_stmt
#endif

#endif /* HEADER_CURL_VTLS_H */