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comparison mupdf-source/thirdparty/curl/lib/vtls/vtls.h @ 2:b50eed0cc0ef upstream

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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4. The directory name has changed: no version number in the expanded directory now.
author Franz Glasner <fzglas.hg@dom66.de>
date Mon, 15 Sep 2025 11:43:07 +0200
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1:1d09e1dec1d9 2:b50eed0cc0ef
1 #ifndef HEADER_CURL_VTLS_H
2 #define HEADER_CURL_VTLS_H
3 /***************************************************************************
4 * _ _ ____ _
5 * Project ___| | | | _ \| |
6 * / __| | | | |_) | |
7 * | (__| |_| | _ <| |___
8 * \___|\___/|_| \_\_____|
9 *
10 * Copyright (C) 1998 - 2019, 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 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 struct connectdata;
27 struct ssl_connect_data;
28
29 #define SSLSUPP_CA_PATH (1<<0) /* supports CAPATH */
30 #define SSLSUPP_CERTINFO (1<<1) /* supports CURLOPT_CERTINFO */
31 #define SSLSUPP_PINNEDPUBKEY (1<<2) /* supports CURLOPT_PINNEDPUBLICKEY */
32 #define SSLSUPP_SSL_CTX (1<<3) /* supports CURLOPT_SSL_CTX */
33 #define SSLSUPP_HTTPS_PROXY (1<<4) /* supports access via HTTPS proxies */
34 #define SSLSUPP_TLS13_CIPHERSUITES (1<<5) /* supports TLS 1.3 ciphersuites */
35
36 struct Curl_ssl {
37 /*
38 * This *must* be the first entry to allow returning the list of available
39 * backends in curl_global_sslset().
40 */
41 curl_ssl_backend info;
42 unsigned int supports; /* bitfield, see above */
43 size_t sizeof_ssl_backend_data;
44
45 int (*init)(void);
46 void (*cleanup)(void);
47
48 size_t (*version)(char *buffer, size_t size);
49 int (*check_cxn)(struct connectdata *cxn);
50 int (*shut_down)(struct connectdata *conn, int sockindex);
51 bool (*data_pending)(const struct connectdata *conn,
52 int connindex);
53
54 /* return 0 if a find random is filled in */
55 CURLcode (*random)(struct Curl_easy *data, unsigned char *entropy,
56 size_t length);
57 bool (*cert_status_request)(void);
58
59 CURLcode (*connect_blocking)(struct connectdata *conn, int sockindex);
60 CURLcode (*connect_nonblocking)(struct connectdata *conn, int sockindex,
61 bool *done);
62 void *(*get_internals)(struct ssl_connect_data *connssl, CURLINFO info);
63 void (*close_one)(struct connectdata *conn, int sockindex);
64 void (*close_all)(struct Curl_easy *data);
65 void (*session_free)(void *ptr);
66
67 CURLcode (*set_engine)(struct Curl_easy *data, const char *engine);
68 CURLcode (*set_engine_default)(struct Curl_easy *data);
69 struct curl_slist *(*engines_list)(struct Curl_easy *data);
70
71 bool (*false_start)(void);
72
73 CURLcode (*md5sum)(unsigned char *input, size_t inputlen,
74 unsigned char *md5sum, size_t md5sumlen);
75 CURLcode (*sha256sum)(const unsigned char *input, size_t inputlen,
76 unsigned char *sha256sum, size_t sha256sumlen);
77 };
78
79 #ifdef USE_SSL
80 extern const struct Curl_ssl *Curl_ssl;
81 #endif
82
83 int Curl_none_init(void);
84 void Curl_none_cleanup(void);
85 int Curl_none_shutdown(struct connectdata *conn, int sockindex);
86 int Curl_none_check_cxn(struct connectdata *conn);
87 CURLcode Curl_none_random(struct Curl_easy *data, unsigned char *entropy,
88 size_t length);
89 void Curl_none_close_all(struct Curl_easy *data);
90 void Curl_none_session_free(void *ptr);
91 bool Curl_none_data_pending(const struct connectdata *conn, int connindex);
92 bool Curl_none_cert_status_request(void);
93 CURLcode Curl_none_set_engine(struct Curl_easy *data, const char *engine);
94 CURLcode Curl_none_set_engine_default(struct Curl_easy *data);
95 struct curl_slist *Curl_none_engines_list(struct Curl_easy *data);
96 bool Curl_none_false_start(void);
97 bool Curl_ssl_tls13_ciphersuites(void);
98 CURLcode Curl_none_md5sum(unsigned char *input, size_t inputlen,
99 unsigned char *md5sum, size_t md5len);
100
101 #include "openssl.h" /* OpenSSL versions */
102 #include "gtls.h" /* GnuTLS versions */
103 #include "nssg.h" /* NSS versions */
104 #include "gskit.h" /* Global Secure ToolKit versions */
105 #include "polarssl.h" /* PolarSSL versions */
106 #include "wolfssl.h" /* wolfSSL versions */
107 #include "schannel.h" /* Schannel SSPI version */
108 #include "sectransp.h" /* SecureTransport (Darwin) version */
109 #include "mbedtls.h" /* mbedTLS versions */
110 #include "mesalink.h" /* MesaLink versions */
111
112 #ifndef MAX_PINNED_PUBKEY_SIZE
113 #define MAX_PINNED_PUBKEY_SIZE 1048576 /* 1MB */
114 #endif
115
116 #ifndef MD5_DIGEST_LENGTH
117 #ifndef LIBWOLFSSL_VERSION_HEX /* because WolfSSL borks this */
118 #define MD5_DIGEST_LENGTH 16 /* fixed size */
119 #endif
120 #endif
121
122 #ifndef CURL_SHA256_DIGEST_LENGTH
123 #define CURL_SHA256_DIGEST_LENGTH 32 /* fixed size */
124 #endif
125
126 /* see https://tools.ietf.org/html/draft-ietf-tls-applayerprotoneg-04 */
127 #define ALPN_HTTP_1_1_LENGTH 8
128 #define ALPN_HTTP_1_1 "http/1.1"
129
130 /* set of helper macros for the backends to access the correct fields. For the
131 proxy or for the remote host - to properly support HTTPS proxy */
132
133 #define SSL_IS_PROXY() (CURLPROXY_HTTPS == conn->http_proxy.proxytype && \
134 ssl_connection_complete != conn->proxy_ssl[conn->sock[SECONDARYSOCKET] == \
135 CURL_SOCKET_BAD ? FIRSTSOCKET : SECONDARYSOCKET].state)
136 #define SSL_SET_OPTION(var) (SSL_IS_PROXY() ? data->set.proxy_ssl.var : \
137 data->set.ssl.var)
138 #define SSL_CONN_CONFIG(var) (SSL_IS_PROXY() ? \
139 conn->proxy_ssl_config.var : conn->ssl_config.var)
140
141 bool Curl_ssl_config_matches(struct ssl_primary_config* data,
142 struct ssl_primary_config* needle);
143 bool Curl_clone_primary_ssl_config(struct ssl_primary_config *source,
144 struct ssl_primary_config *dest);
145 void Curl_free_primary_ssl_config(struct ssl_primary_config* sslc);
146 int Curl_ssl_getsock(struct connectdata *conn, curl_socket_t *socks);
147
148 int Curl_ssl_backend(void);
149
150 #ifdef USE_SSL
151 int Curl_ssl_init(void);
152 void Curl_ssl_cleanup(void);
153 CURLcode Curl_ssl_connect(struct connectdata *conn, int sockindex);
154 CURLcode Curl_ssl_connect_nonblocking(struct connectdata *conn,
155 int sockindex,
156 bool *done);
157 /* tell the SSL stuff to close down all open information regarding
158 connections (and thus session ID caching etc) */
159 void Curl_ssl_close_all(struct Curl_easy *data);
160 void Curl_ssl_close(struct connectdata *conn, int sockindex);
161 CURLcode Curl_ssl_shutdown(struct connectdata *conn, int sockindex);
162 CURLcode Curl_ssl_set_engine(struct Curl_easy *data, const char *engine);
163 /* Sets engine as default for all SSL operations */
164 CURLcode Curl_ssl_set_engine_default(struct Curl_easy *data);
165 struct curl_slist *Curl_ssl_engines_list(struct Curl_easy *data);
166
167 /* init the SSL session ID cache */
168 CURLcode Curl_ssl_initsessions(struct Curl_easy *, size_t);
169 size_t Curl_ssl_version(char *buffer, size_t size);
170 bool Curl_ssl_data_pending(const struct connectdata *conn,
171 int connindex);
172 int Curl_ssl_check_cxn(struct connectdata *conn);
173
174 /* Certificate information list handling. */
175
176 void Curl_ssl_free_certinfo(struct Curl_easy *data);
177 CURLcode Curl_ssl_init_certinfo(struct Curl_easy *data, int num);
178 CURLcode Curl_ssl_push_certinfo_len(struct Curl_easy *data, int certnum,
179 const char *label, const char *value,
180 size_t valuelen);
181 CURLcode Curl_ssl_push_certinfo(struct Curl_easy *data, int certnum,
182 const char *label, const char *value);
183
184 /* Functions to be used by SSL library adaptation functions */
185
186 /* Lock session cache mutex.
187 * Call this before calling other Curl_ssl_*session* functions
188 * Caller should unlock this mutex as soon as possible, as it may block
189 * other SSL connection from making progress.
190 * The purpose of explicitly locking SSL session cache data is to allow
191 * individual SSL engines to manage session lifetime in their specific way.
192 */
193 void Curl_ssl_sessionid_lock(struct connectdata *conn);
194
195 /* Unlock session cache mutex */
196 void Curl_ssl_sessionid_unlock(struct connectdata *conn);
197
198 /* extract a session ID
199 * Sessionid mutex must be locked (see Curl_ssl_sessionid_lock).
200 * Caller must make sure that the ownership of returned sessionid object
201 * is properly taken (e.g. its refcount is incremented
202 * under sessionid mutex).
203 */
204 bool Curl_ssl_getsessionid(struct connectdata *conn,
205 void **ssl_sessionid,
206 size_t *idsize, /* set 0 if unknown */
207 int sockindex);
208 /* add a new session ID
209 * Sessionid mutex must be locked (see Curl_ssl_sessionid_lock).
210 * Caller must ensure that it has properly shared ownership of this sessionid
211 * object with cache (e.g. incrementing refcount on success)
212 */
213 CURLcode Curl_ssl_addsessionid(struct connectdata *conn,
214 void *ssl_sessionid,
215 size_t idsize,
216 int sockindex);
217 /* Kill a single session ID entry in the cache
218 * Sessionid mutex must be locked (see Curl_ssl_sessionid_lock).
219 * This will call engine-specific curlssl_session_free function, which must
220 * take sessionid object ownership from sessionid cache
221 * (e.g. decrement refcount).
222 */
223 void Curl_ssl_kill_session(struct curl_ssl_session *session);
224 /* delete a session from the cache
225 * Sessionid mutex must be locked (see Curl_ssl_sessionid_lock).
226 * This will call engine-specific curlssl_session_free function, which must
227 * take sessionid object ownership from sessionid cache
228 * (e.g. decrement refcount).
229 */
230 void Curl_ssl_delsessionid(struct connectdata *conn, void *ssl_sessionid);
231
232 /* get N random bytes into the buffer */
233 CURLcode Curl_ssl_random(struct Curl_easy *data, unsigned char *buffer,
234 size_t length);
235 CURLcode Curl_ssl_md5sum(unsigned char *tmp, /* input */
236 size_t tmplen,
237 unsigned char *md5sum, /* output */
238 size_t md5len);
239 /* Check pinned public key. */
240 CURLcode Curl_pin_peer_pubkey(struct Curl_easy *data,
241 const char *pinnedpubkey,
242 const unsigned char *pubkey, size_t pubkeylen);
243
244 bool Curl_ssl_cert_status_request(void);
245
246 bool Curl_ssl_false_start(void);
247
248 #define SSL_SHUTDOWN_TIMEOUT 10000 /* ms */
249
250 #else /* if not USE_SSL */
251
252 /* When SSL support is not present, just define away these function calls */
253 #define Curl_ssl_init() 1
254 #define Curl_ssl_cleanup() Curl_nop_stmt
255 #define Curl_ssl_connect(x,y) CURLE_NOT_BUILT_IN
256 #define Curl_ssl_close_all(x) Curl_nop_stmt
257 #define Curl_ssl_close(x,y) Curl_nop_stmt
258 #define Curl_ssl_shutdown(x,y) CURLE_NOT_BUILT_IN
259 #define Curl_ssl_set_engine(x,y) CURLE_NOT_BUILT_IN
260 #define Curl_ssl_set_engine_default(x) CURLE_NOT_BUILT_IN
261 #define Curl_ssl_engines_list(x) NULL
262 #define Curl_ssl_send(a,b,c,d,e) -1
263 #define Curl_ssl_recv(a,b,c,d,e) -1
264 #define Curl_ssl_initsessions(x,y) CURLE_OK
265 #define Curl_ssl_version(x,y) 0
266 #define Curl_ssl_data_pending(x,y) 0
267 #define Curl_ssl_check_cxn(x) 0
268 #define Curl_ssl_free_certinfo(x) Curl_nop_stmt
269 #define Curl_ssl_connect_nonblocking(x,y,z) CURLE_NOT_BUILT_IN
270 #define Curl_ssl_kill_session(x) Curl_nop_stmt
271 #define Curl_ssl_random(x,y,z) ((void)x, CURLE_NOT_BUILT_IN)
272 #define Curl_ssl_cert_status_request() FALSE
273 #define Curl_ssl_false_start() FALSE
274 #define Curl_ssl_tls13_ciphersuites() FALSE
275 #endif
276
277 #endif /* HEADER_CURL_VTLS_H */