1#ifndef HEADER_CURL_VTLS_H
2#define HEADER_CURL_VTLS_H
3/***************************************************************************
4 *                                  _   _ ____  _
5 *  Project                     ___| | | |  _ \| |
6 *                             / __| | | | |_) | |
7 *                            | (__| |_| |  _ <| |___
8 *                             \___|\___/|_| \_\_____|
9 *
10 * Copyright (C) 1998 - 2014, Daniel Stenberg, <daniel@haxx.se>, et al.
11 *
12 * This software is licensed as described in the file COPYING, which
13 * you should have received as part of this distribution. The terms
14 * are also available at http://curl.haxx.se/docs/copyright.html.
15 *
16 * You may opt to use, copy, modify, merge, publish, distribute and/or sell
17 * copies of the Software, and permit persons to whom the Software is
18 * furnished to do so, under the terms of the COPYING file.
19 *
20 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
21 * KIND, either express or implied.
22 *
23 ***************************************************************************/
24#include "curl_setup.h"
25
26#ifndef MD5_DIGEST_LENGTH
27#define MD5_DIGEST_LENGTH 16 /* fixed size */
28#endif
29
30/* see http://tools.ietf.org/html/draft-ietf-tls-applayerprotoneg-04 */
31#define ALPN_HTTP_1_1_LENGTH 8
32#define ALPN_HTTP_1_1 "http/1.1"
33
34bool Curl_ssl_config_matches(struct ssl_config_data* data,
35                             struct ssl_config_data* needle);
36bool Curl_clone_ssl_config(struct ssl_config_data* source,
37                           struct ssl_config_data* dest);
38void Curl_free_ssl_config(struct ssl_config_data* sslc);
39
40unsigned int Curl_rand(struct SessionHandle *);
41
42#ifdef USE_SSL
43int Curl_ssl_init(void);
44void Curl_ssl_cleanup(void);
45CURLcode Curl_ssl_connect(struct connectdata *conn, int sockindex);
46CURLcode Curl_ssl_connect_nonblocking(struct connectdata *conn,
47                                      int sockindex,
48                                      bool *done);
49/* tell the SSL stuff to close down all open information regarding
50   connections (and thus session ID caching etc) */
51void Curl_ssl_close_all(struct SessionHandle *data);
52void Curl_ssl_close(struct connectdata *conn, int sockindex);
53CURLcode Curl_ssl_shutdown(struct connectdata *conn, int sockindex);
54CURLcode Curl_ssl_set_engine(struct SessionHandle *data, const char *engine);
55/* Sets engine as default for all SSL operations */
56CURLcode Curl_ssl_set_engine_default(struct SessionHandle *data);
57struct curl_slist *Curl_ssl_engines_list(struct SessionHandle *data);
58
59/* init the SSL session ID cache */
60CURLcode Curl_ssl_initsessions(struct SessionHandle *, size_t);
61size_t Curl_ssl_version(char *buffer, size_t size);
62bool Curl_ssl_data_pending(const struct connectdata *conn,
63                           int connindex);
64int Curl_ssl_check_cxn(struct connectdata *conn);
65
66/* Certificate information list handling. */
67
68void Curl_ssl_free_certinfo(struct SessionHandle *data);
69int Curl_ssl_init_certinfo(struct SessionHandle * data, int num);
70CURLcode Curl_ssl_push_certinfo_len(struct SessionHandle * data, int certnum,
71                                    const char * label, const char * value,
72                                    size_t valuelen);
73CURLcode Curl_ssl_push_certinfo(struct SessionHandle * data, int certnum,
74                                const char * label, const char * value);
75
76/* Functions to be used by SSL library adaptation functions */
77
78/* extract a session ID */
79int Curl_ssl_getsessionid(struct connectdata *conn,
80                          void **ssl_sessionid,
81                          size_t *idsize) /* set 0 if unknown */;
82/* add a new session ID */
83CURLcode Curl_ssl_addsessionid(struct connectdata *conn,
84                               void *ssl_sessionid,
85                               size_t idsize);
86/* Kill a single session ID entry in the cache */
87void Curl_ssl_kill_session(struct curl_ssl_session *session);
88/* delete a session from the cache */
89void Curl_ssl_delsessionid(struct connectdata *conn, void *ssl_sessionid);
90
91/* get N random bytes into the buffer */
92void Curl_ssl_md5sum(unsigned char *tmp, /* input */
93                     size_t tmplen,
94                     unsigned char *md5sum, /* output */
95                     size_t md5len);
96
97#define SSL_SHUTDOWN_TIMEOUT 10000 /* ms */
98
99#ifdef have_curlssl_random
100#define HAVE_CURL_SSL_RANDOM
101#endif
102#ifdef have_curlssl_md5sum
103#define HAVE_CURL_SSL_MD5SUM
104#endif
105
106#else
107/* When SSL support is not present, just define away these function calls */
108#define Curl_ssl_init() 1
109#define Curl_ssl_cleanup() Curl_nop_stmt
110#define Curl_ssl_connect(x,y) CURLE_NOT_BUILT_IN
111#define Curl_ssl_close_all(x) Curl_nop_stmt
112#define Curl_ssl_close(x,y) Curl_nop_stmt
113#define Curl_ssl_shutdown(x,y) CURLE_NOT_BUILT_IN
114#define Curl_ssl_set_engine(x,y) CURLE_NOT_BUILT_IN
115#define Curl_ssl_set_engine_default(x) CURLE_NOT_BUILT_IN
116#define Curl_ssl_engines_list(x) NULL
117#define Curl_ssl_send(a,b,c,d,e) -1
118#define Curl_ssl_recv(a,b,c,d,e) -1
119#define Curl_ssl_initsessions(x,y) CURLE_OK
120#define Curl_ssl_version(x,y) 0
121#define Curl_ssl_data_pending(x,y) 0
122#define Curl_ssl_check_cxn(x) 0
123#define Curl_ssl_free_certinfo(x) Curl_nop_stmt
124#define Curl_ssl_connect_nonblocking(x,y,z) CURLE_NOT_BUILT_IN
125#define Curl_ssl_kill_session(x) Curl_nop_stmt
126#endif
127
128#endif /* HEADER_CURL_VTLS_H */
129