1 #ifndef HEADER_CURL_VTLS_H 2 #define HEADER_CURL_VTLS_H 3 /*************************************************************************** 4 * _ _ ____ _ 5 * Project ___| | | | _ \| | 6 * / __| | | | |_) | | 7 * | (__| |_| | _ <| |___ 8 * \___|\___/|_| \_\_____| 9 * 10 * Copyright (C) 1998 - 2016, 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 https://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 #include "mbedtls.h" /* mbedTLS versions */ 36 37 #ifndef MAX_PINNED_PUBKEY_SIZE 38 #define MAX_PINNED_PUBKEY_SIZE 1048576 /* 1MB */ 39 #endif 40 41 #ifndef MD5_DIGEST_LENGTH 42 #define MD5_DIGEST_LENGTH 16 /* fixed size */ 43 #endif 44 45 #ifndef SHA256_DIGEST_LENGTH 46 #define SHA256_DIGEST_LENGTH 32 /* fixed size */ 47 #endif 48 49 /* see https://tools.ietf.org/html/draft-ietf-tls-applayerprotoneg-04 */ 50 #define ALPN_HTTP_1_1_LENGTH 8 51 #define ALPN_HTTP_1_1 "http/1.1" 52 53 bool Curl_ssl_config_matches(struct ssl_config_data* data, 54 struct ssl_config_data* needle); 55 bool Curl_clone_ssl_config(struct ssl_config_data* source, 56 struct ssl_config_data* dest); 57 void Curl_free_ssl_config(struct ssl_config_data* sslc); 58 59 unsigned int Curl_rand(struct Curl_easy *); 60 61 int Curl_ssl_backend(void); 62 63 #ifdef USE_SSL 64 int Curl_ssl_init(void); 65 void Curl_ssl_cleanup(void); 66 CURLcode Curl_ssl_connect(struct connectdata *conn, int sockindex); 67 CURLcode Curl_ssl_connect_nonblocking(struct connectdata *conn, 68 int sockindex, 69 bool *done); 70 /* tell the SSL stuff to close down all open information regarding 71 connections (and thus session ID caching etc) */ 72 void Curl_ssl_close_all(struct Curl_easy *data); 73 void Curl_ssl_close(struct connectdata *conn, int sockindex); 74 CURLcode Curl_ssl_shutdown(struct connectdata *conn, int sockindex); 75 CURLcode Curl_ssl_set_engine(struct Curl_easy *data, const char *engine); 76 /* Sets engine as default for all SSL operations */ 77 CURLcode Curl_ssl_set_engine_default(struct Curl_easy *data); 78 struct curl_slist *Curl_ssl_engines_list(struct Curl_easy *data); 79 80 /* init the SSL session ID cache */ 81 CURLcode Curl_ssl_initsessions(struct Curl_easy *, size_t); 82 size_t Curl_ssl_version(char *buffer, size_t size); 83 bool Curl_ssl_data_pending(const struct connectdata *conn, 84 int connindex); 85 int Curl_ssl_check_cxn(struct connectdata *conn); 86 87 /* Certificate information list handling. */ 88 89 void Curl_ssl_free_certinfo(struct Curl_easy *data); 90 CURLcode Curl_ssl_init_certinfo(struct Curl_easy * data, int num); 91 CURLcode Curl_ssl_push_certinfo_len(struct Curl_easy * data, int certnum, 92 const char * label, const char * value, 93 size_t valuelen); 94 CURLcode Curl_ssl_push_certinfo(struct Curl_easy * data, int certnum, 95 const char * label, const char * value); 96 97 /* Functions to be used by SSL library adaptation functions */ 98 99 /* Lock session cache mutex. 100 * Call this before calling other Curl_ssl_*session* functions 101 * Caller should unlock this mutex as soon as possible, as it may block 102 * other SSL connection from making progress. 103 * The purpose of explicitly locking SSL session cache data is to allow 104 * individual SSL engines to manage session lifetime in their specific way. 105 */ 106 void Curl_ssl_sessionid_lock(struct connectdata *conn); 107 108 /* Unlock session cache mutex */ 109 void Curl_ssl_sessionid_unlock(struct connectdata *conn); 110 111 /* extract a session ID 112 * Sessionid mutex must be locked (see Curl_ssl_sessionid_lock). 113 * Caller must make sure that the ownership of returned sessionid object 114 * is properly taken (e.g. its refcount is incremented 115 * under sessionid mutex). 116 */ 117 bool Curl_ssl_getsessionid(struct connectdata *conn, 118 void **ssl_sessionid, 119 size_t *idsize); /* set 0 if unknown */ 120 /* add a new session ID 121 * Sessionid mutex must be locked (see Curl_ssl_sessionid_lock). 122 * Caller must ensure that it has properly shared ownership of this sessionid 123 * object with cache (e.g. incrementing refcount on success) 124 */ 125 CURLcode Curl_ssl_addsessionid(struct connectdata *conn, 126 void *ssl_sessionid, 127 size_t idsize); 128 /* Kill a single session ID entry in the cache 129 * Sessionid mutex must be locked (see Curl_ssl_sessionid_lock). 130 * This will call engine-specific curlssl_session_free function, which must 131 * take sessionid object ownership from sessionid cache 132 * (e.g. decrement refcount). 133 */ 134 void Curl_ssl_kill_session(struct curl_ssl_session *session); 135 /* delete a session from the cache 136 * Sessionid mutex must be locked (see Curl_ssl_sessionid_lock). 137 * This will call engine-specific curlssl_session_free function, which must 138 * take sessionid object ownership from sessionid cache 139 * (e.g. decrement refcount). 140 */ 141 void Curl_ssl_delsessionid(struct connectdata *conn, void *ssl_sessionid); 142 143 /* get N random bytes into the buffer, return 0 if a find random is filled 144 in */ 145 int Curl_ssl_random(struct Curl_easy *data, unsigned char *buffer, 146 size_t length); 147 CURLcode Curl_ssl_md5sum(unsigned char *tmp, /* input */ 148 size_t tmplen, 149 unsigned char *md5sum, /* output */ 150 size_t md5len); 151 /* Check pinned public key. */ 152 CURLcode Curl_pin_peer_pubkey(struct Curl_easy *data, 153 const char *pinnedpubkey, 154 const unsigned char *pubkey, size_t pubkeylen); 155 156 bool Curl_ssl_cert_status_request(void); 157 158 bool Curl_ssl_false_start(void); 159 160 #define SSL_SHUTDOWN_TIMEOUT 10000 /* ms */ 161 162 #else 163 /* Set the API backend definition to none */ 164 #define CURL_SSL_BACKEND CURLSSLBACKEND_NONE 165 166 /* When SSL support is not present, just define away these function calls */ 167 #define Curl_ssl_init() 1 168 #define Curl_ssl_cleanup() Curl_nop_stmt 169 #define Curl_ssl_connect(x,y) CURLE_NOT_BUILT_IN 170 #define Curl_ssl_close_all(x) Curl_nop_stmt 171 #define Curl_ssl_close(x,y) Curl_nop_stmt 172 #define Curl_ssl_shutdown(x,y) CURLE_NOT_BUILT_IN 173 #define Curl_ssl_set_engine(x,y) CURLE_NOT_BUILT_IN 174 #define Curl_ssl_set_engine_default(x) CURLE_NOT_BUILT_IN 175 #define Curl_ssl_engines_list(x) NULL 176 #define Curl_ssl_send(a,b,c,d,e) -1 177 #define Curl_ssl_recv(a,b,c,d,e) -1 178 #define Curl_ssl_initsessions(x,y) CURLE_OK 179 #define Curl_ssl_version(x,y) 0 180 #define Curl_ssl_data_pending(x,y) 0 181 #define Curl_ssl_check_cxn(x) 0 182 #define Curl_ssl_free_certinfo(x) Curl_nop_stmt 183 #define Curl_ssl_connect_nonblocking(x,y,z) CURLE_NOT_BUILT_IN 184 #define Curl_ssl_kill_session(x) Curl_nop_stmt 185 #define Curl_ssl_random(x,y,z) ((void)x, CURLE_NOT_BUILT_IN) 186 #define Curl_ssl_cert_status_request() FALSE 187 #define Curl_ssl_false_start() FALSE 188 #endif 189 190 #endif /* HEADER_CURL_VTLS_H */ 191
