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 /* set of helper macros for the backends to access the correct fields. For the 54 proxy or for the remote host - to properly support HTTPS proxy */ 55 56 #define SSL_IS_PROXY() (CURLPROXY_HTTPS == conn->http_proxy.proxytype && \ 57 ssl_connection_complete != conn->proxy_ssl[conn->sock[SECONDARYSOCKET] == \ 58 CURL_SOCKET_BAD ? FIRSTSOCKET : SECONDARYSOCKET].state) 59 #define SSL_SET_OPTION(var) (SSL_IS_PROXY() ? data->set.proxy_ssl.var : \ 60 data->set.ssl.var) 61 #define SSL_CONN_CONFIG(var) (SSL_IS_PROXY() ? \ 62 conn->proxy_ssl_config.var : conn->ssl_config.var) 63 64 bool Curl_ssl_config_matches(struct ssl_primary_config* data, 65 struct ssl_primary_config* needle); 66 bool Curl_clone_primary_ssl_config(struct ssl_primary_config *source, 67 struct ssl_primary_config *dest); 68 void Curl_free_primary_ssl_config(struct ssl_primary_config* sslc); 69 int Curl_ssl_getsock(struct connectdata *conn, curl_socket_t *socks, 70 int numsocks); 71 72 int Curl_ssl_backend(void); 73 74 #ifdef USE_SSL 75 int Curl_ssl_init(void); 76 void Curl_ssl_cleanup(void); 77 CURLcode Curl_ssl_connect(struct connectdata *conn, int sockindex); 78 CURLcode Curl_ssl_connect_nonblocking(struct connectdata *conn, 79 int sockindex, 80 bool *done); 81 /* tell the SSL stuff to close down all open information regarding 82 connections (and thus session ID caching etc) */ 83 void Curl_ssl_close_all(struct Curl_easy *data); 84 void Curl_ssl_close(struct connectdata *conn, int sockindex); 85 CURLcode Curl_ssl_shutdown(struct connectdata *conn, int sockindex); 86 CURLcode Curl_ssl_set_engine(struct Curl_easy *data, const char *engine); 87 /* Sets engine as default for all SSL operations */ 88 CURLcode Curl_ssl_set_engine_default(struct Curl_easy *data); 89 struct curl_slist *Curl_ssl_engines_list(struct Curl_easy *data); 90 91 /* init the SSL session ID cache */ 92 CURLcode Curl_ssl_initsessions(struct Curl_easy *, size_t); 93 size_t Curl_ssl_version(char *buffer, size_t size); 94 bool Curl_ssl_data_pending(const struct connectdata *conn, 95 int connindex); 96 int Curl_ssl_check_cxn(struct connectdata *conn); 97 98 /* Certificate information list handling. */ 99 100 void Curl_ssl_free_certinfo(struct Curl_easy *data); 101 CURLcode Curl_ssl_init_certinfo(struct Curl_easy *data, int num); 102 CURLcode Curl_ssl_push_certinfo_len(struct Curl_easy *data, int certnum, 103 const char *label, const char *value, 104 size_t valuelen); 105 CURLcode Curl_ssl_push_certinfo(struct Curl_easy *data, int certnum, 106 const char *label, const char *value); 107 108 /* Functions to be used by SSL library adaptation functions */ 109 110 /* Lock session cache mutex. 111 * Call this before calling other Curl_ssl_*session* functions 112 * Caller should unlock this mutex as soon as possible, as it may block 113 * other SSL connection from making progress. 114 * The purpose of explicitly locking SSL session cache data is to allow 115 * individual SSL engines to manage session lifetime in their specific way. 116 */ 117 void Curl_ssl_sessionid_lock(struct connectdata *conn); 118 119 /* Unlock session cache mutex */ 120 void Curl_ssl_sessionid_unlock(struct connectdata *conn); 121 122 /* extract a session ID 123 * Sessionid mutex must be locked (see Curl_ssl_sessionid_lock). 124 * Caller must make sure that the ownership of returned sessionid object 125 * is properly taken (e.g. its refcount is incremented 126 * under sessionid mutex). 127 */ 128 bool Curl_ssl_getsessionid(struct connectdata *conn, 129 void **ssl_sessionid, 130 size_t *idsize, /* set 0 if unknown */ 131 int sockindex); 132 /* add a new session ID 133 * Sessionid mutex must be locked (see Curl_ssl_sessionid_lock). 134 * Caller must ensure that it has properly shared ownership of this sessionid 135 * object with cache (e.g. incrementing refcount on success) 136 */ 137 CURLcode Curl_ssl_addsessionid(struct connectdata *conn, 138 void *ssl_sessionid, 139 size_t idsize, 140 int sockindex); 141 /* Kill a single session ID entry in the cache 142 * Sessionid mutex must be locked (see Curl_ssl_sessionid_lock). 143 * This will call engine-specific curlssl_session_free function, which must 144 * take sessionid object ownership from sessionid cache 145 * (e.g. decrement refcount). 146 */ 147 void Curl_ssl_kill_session(struct curl_ssl_session *session); 148 /* delete a session from the cache 149 * Sessionid mutex must be locked (see Curl_ssl_sessionid_lock). 150 * This will call engine-specific curlssl_session_free function, which must 151 * take sessionid object ownership from sessionid cache 152 * (e.g. decrement refcount). 153 */ 154 void Curl_ssl_delsessionid(struct connectdata *conn, void *ssl_sessionid); 155 156 /* get N random bytes into the buffer */ 157 CURLcode Curl_ssl_random(struct Curl_easy *data, unsigned char *buffer, 158 size_t length); 159 CURLcode Curl_ssl_md5sum(unsigned char *tmp, /* input */ 160 size_t tmplen, 161 unsigned char *md5sum, /* output */ 162 size_t md5len); 163 /* Check pinned public key. */ 164 CURLcode Curl_pin_peer_pubkey(struct Curl_easy *data, 165 const char *pinnedpubkey, 166 const unsigned char *pubkey, size_t pubkeylen); 167 168 bool Curl_ssl_cert_status_request(void); 169 170 bool Curl_ssl_false_start(void); 171 172 #define SSL_SHUTDOWN_TIMEOUT 10000 /* ms */ 173 174 #else 175 /* Set the API backend definition to none */ 176 #define CURL_SSL_BACKEND CURLSSLBACKEND_NONE 177 178 /* When SSL support is not present, just define away these function calls */ 179 #define Curl_ssl_init() 1 180 #define Curl_ssl_cleanup() Curl_nop_stmt 181 #define Curl_ssl_connect(x,y) CURLE_NOT_BUILT_IN 182 #define Curl_ssl_close_all(x) Curl_nop_stmt 183 #define Curl_ssl_close(x,y) Curl_nop_stmt 184 #define Curl_ssl_shutdown(x,y) CURLE_NOT_BUILT_IN 185 #define Curl_ssl_set_engine(x,y) CURLE_NOT_BUILT_IN 186 #define Curl_ssl_set_engine_default(x) CURLE_NOT_BUILT_IN 187 #define Curl_ssl_engines_list(x) NULL 188 #define Curl_ssl_send(a,b,c,d,e) -1 189 #define Curl_ssl_recv(a,b,c,d,e) -1 190 #define Curl_ssl_initsessions(x,y) CURLE_OK 191 #define Curl_ssl_version(x,y) 0 192 #define Curl_ssl_data_pending(x,y) 0 193 #define Curl_ssl_check_cxn(x) 0 194 #define Curl_ssl_free_certinfo(x) Curl_nop_stmt 195 #define Curl_ssl_connect_nonblocking(x,y,z) CURLE_NOT_BUILT_IN 196 #define Curl_ssl_kill_session(x) Curl_nop_stmt 197 #define Curl_ssl_random(x,y,z) ((void)x, CURLE_NOT_BUILT_IN) 198 #define Curl_ssl_cert_status_request() FALSE 199 #define Curl_ssl_false_start() FALSE 200 #endif 201 202 #endif /* HEADER_CURL_VTLS_H */ 203
