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      1 #ifndef HEADER_CURL_VTLS_H
      2 #define HEADER_CURL_VTLS_H
      3 /***************************************************************************
      4  *                                  _   _ ____  _
      5  *  Project                     ___| | | |  _ \| |
      6  *                             / __| | | | |_) | |
      7  *                            | (__| |_| |  _ <| |___
      8  *                             \___|\___/|_| \_\_____|
      9  *
     10  * Copyright (C) 1998 - 2015, Daniel Stenberg, <daniel (at) 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 #include "openssl.h"        /* OpenSSL versions */
     27 #include "gtls.h"           /* GnuTLS versions */
     28 #include "nssg.h"           /* NSS versions */
     29 #include "gskit.h"          /* Global Secure ToolKit versions */
     30 #include "polarssl.h"       /* PolarSSL versions */
     31 #include "axtls.h"          /* axTLS versions */
     32 #include "cyassl.h"         /* CyaSSL versions */
     33 #include "schannel.h"       /* Schannel SSPI version */
     34 #include "darwinssl.h"      /* SecureTransport (Darwin) version */
     35 
     36 #ifndef MAX_PINNED_PUBKEY_SIZE
     37 #define MAX_PINNED_PUBKEY_SIZE 1048576 /* 1MB */
     38 #endif
     39 
     40 #ifndef MD5_DIGEST_LENGTH
     41 #define MD5_DIGEST_LENGTH 16 /* fixed size */
     42 #endif
     43 
     44 /* see http://tools.ietf.org/html/draft-ietf-tls-applayerprotoneg-04 */
     45 #define ALPN_HTTP_1_1_LENGTH 8
     46 #define ALPN_HTTP_1_1 "http/1.1"
     47 
     48 bool Curl_ssl_config_matches(struct ssl_config_data* data,
     49                              struct ssl_config_data* needle);
     50 bool Curl_clone_ssl_config(struct ssl_config_data* source,
     51                            struct ssl_config_data* dest);
     52 void Curl_free_ssl_config(struct ssl_config_data* sslc);
     53 
     54 unsigned int Curl_rand(struct SessionHandle *);
     55 
     56 int Curl_ssl_backend(void);
     57 
     58 #ifdef USE_SSL
     59 int Curl_ssl_init(void);
     60 void Curl_ssl_cleanup(void);
     61 CURLcode Curl_ssl_connect(struct connectdata *conn, int sockindex);
     62 CURLcode Curl_ssl_connect_nonblocking(struct connectdata *conn,
     63                                       int sockindex,
     64                                       bool *done);
     65 /* tell the SSL stuff to close down all open information regarding
     66    connections (and thus session ID caching etc) */
     67 void Curl_ssl_close_all(struct SessionHandle *data);
     68 void Curl_ssl_close(struct connectdata *conn, int sockindex);
     69 CURLcode Curl_ssl_shutdown(struct connectdata *conn, int sockindex);
     70 CURLcode Curl_ssl_set_engine(struct SessionHandle *data, const char *engine);
     71 /* Sets engine as default for all SSL operations */
     72 CURLcode Curl_ssl_set_engine_default(struct SessionHandle *data);
     73 struct curl_slist *Curl_ssl_engines_list(struct SessionHandle *data);
     74 
     75 /* init the SSL session ID cache */
     76 CURLcode Curl_ssl_initsessions(struct SessionHandle *, size_t);
     77 size_t Curl_ssl_version(char *buffer, size_t size);
     78 bool Curl_ssl_data_pending(const struct connectdata *conn,
     79                            int connindex);
     80 int Curl_ssl_check_cxn(struct connectdata *conn);
     81 
     82 /* Certificate information list handling. */
     83 
     84 void Curl_ssl_free_certinfo(struct SessionHandle *data);
     85 CURLcode Curl_ssl_init_certinfo(struct SessionHandle * data, int num);
     86 CURLcode Curl_ssl_push_certinfo_len(struct SessionHandle * data, int certnum,
     87                                     const char * label, const char * value,
     88                                     size_t valuelen);
     89 CURLcode Curl_ssl_push_certinfo(struct SessionHandle * data, int certnum,
     90                                 const char * label, const char * value);
     91 
     92 /* Functions to be used by SSL library adaptation functions */
     93 
     94 /* extract a session ID */
     95 bool Curl_ssl_getsessionid(struct connectdata *conn,
     96                            void **ssl_sessionid,
     97                            size_t *idsize) /* set 0 if unknown */;
     98 /* add a new session ID */
     99 CURLcode Curl_ssl_addsessionid(struct connectdata *conn,
    100                                void *ssl_sessionid,
    101                                size_t idsize);
    102 /* Kill a single session ID entry in the cache */
    103 void Curl_ssl_kill_session(struct curl_ssl_session *session);
    104 /* delete a session from the cache */
    105 void Curl_ssl_delsessionid(struct connectdata *conn, void *ssl_sessionid);
    106 
    107 /* get N random bytes into the buffer, return 0 if a find random is filled
    108    in */
    109 int Curl_ssl_random(struct SessionHandle *data, unsigned char *buffer,
    110                     size_t length);
    111 CURLcode Curl_ssl_md5sum(unsigned char *tmp, /* input */
    112                          size_t tmplen,
    113                          unsigned char *md5sum, /* output */
    114                          size_t md5len);
    115 /* Check pinned public key. */
    116 CURLcode Curl_pin_peer_pubkey(const char *pinnedpubkey,
    117                               const unsigned char *pubkey, size_t pubkeylen);
    118 
    119 bool Curl_ssl_cert_status_request(void);
    120 
    121 bool Curl_ssl_false_start(void);
    122 
    123 #define SSL_SHUTDOWN_TIMEOUT 10000 /* ms */
    124 
    125 #else
    126 /* Set the API backend definition to none */
    127 #define CURL_SSL_BACKEND CURLSSLBACKEND_NONE
    128 
    129 /* When SSL support is not present, just define away these function calls */
    130 #define Curl_ssl_init() 1
    131 #define Curl_ssl_cleanup() Curl_nop_stmt
    132 #define Curl_ssl_connect(x,y) CURLE_NOT_BUILT_IN
    133 #define Curl_ssl_close_all(x) Curl_nop_stmt
    134 #define Curl_ssl_close(x,y) Curl_nop_stmt
    135 #define Curl_ssl_shutdown(x,y) CURLE_NOT_BUILT_IN
    136 #define Curl_ssl_set_engine(x,y) CURLE_NOT_BUILT_IN
    137 #define Curl_ssl_set_engine_default(x) CURLE_NOT_BUILT_IN
    138 #define Curl_ssl_engines_list(x) NULL
    139 #define Curl_ssl_send(a,b,c,d,e) -1
    140 #define Curl_ssl_recv(a,b,c,d,e) -1
    141 #define Curl_ssl_initsessions(x,y) CURLE_OK
    142 #define Curl_ssl_version(x,y) 0
    143 #define Curl_ssl_data_pending(x,y) 0
    144 #define Curl_ssl_check_cxn(x) 0
    145 #define Curl_ssl_free_certinfo(x) Curl_nop_stmt
    146 #define Curl_ssl_connect_nonblocking(x,y,z) CURLE_NOT_BUILT_IN
    147 #define Curl_ssl_kill_session(x) Curl_nop_stmt
    148 #define Curl_ssl_random(x,y,z) ((void)x, CURLE_NOT_BUILT_IN)
    149 #define Curl_ssl_cert_status_request() FALSE
    150 #define Curl_ssl_false_start() FALSE
    151 #endif
    152 
    153 #endif /* HEADER_CURL_VTLS_H */
    154