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217 lines
8.6 KiB
217 lines
8.6 KiB
#ifndef HEADER_CURL_VTLS_H
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#define HEADER_CURL_VTLS_H
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/***************************************************************************
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* _ _ ____ _
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* Project ___| | | | _ \| |
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* / __| | | | |_) | |
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* | (__| |_| | _ <| |___
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* \___|\___/|_| \_\_____|
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*
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* Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
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*
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* This software is licensed as described in the file COPYING, which
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* you should have received as part of this distribution. The terms
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* are also available at https://curl.se/docs/copyright.html.
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*
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* You may opt to use, copy, modify, merge, publish, distribute and/or sell
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* copies of the Software, and permit persons to whom the Software is
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* furnished to do so, under the terms of the COPYING file.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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* SPDX-License-Identifier: curl
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*
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***************************************************************************/
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#include "curl_setup.h"
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struct connectdata;
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struct ssl_config_data;
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struct ssl_primary_config;
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struct Curl_ssl_session;
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#define SSLSUPP_CA_PATH (1<<0) /* supports CAPATH */
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#define SSLSUPP_CERTINFO (1<<1) /* supports CURLOPT_CERTINFO */
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#define SSLSUPP_PINNEDPUBKEY (1<<2) /* supports CURLOPT_PINNEDPUBLICKEY */
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#define SSLSUPP_SSL_CTX (1<<3) /* supports CURLOPT_SSL_CTX */
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#define SSLSUPP_HTTPS_PROXY (1<<4) /* supports access via HTTPS proxies */
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#define SSLSUPP_TLS13_CIPHERSUITES (1<<5) /* supports TLS 1.3 ciphersuites */
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#define SSLSUPP_CAINFO_BLOB (1<<6)
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#define ALPN_ACCEPTED "ALPN: server accepted "
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#define VTLS_INFOF_NO_ALPN \
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"ALPN: server did not agree on a protocol. Uses default."
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#define VTLS_INFOF_ALPN_OFFER_1STR \
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"ALPN: curl offers %s"
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#define VTLS_INFOF_ALPN_ACCEPTED_1STR \
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ALPN_ACCEPTED "%s"
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#define VTLS_INFOF_ALPN_ACCEPTED_LEN_1STR \
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ALPN_ACCEPTED "%.*s"
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/* Curl_multi SSL backend-specific data; declared differently by each SSL
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backend */
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struct multi_ssl_backend_data;
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struct Curl_cfilter;
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CURLsslset Curl_init_sslset_nolock(curl_sslbackend id, const char *name,
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const curl_ssl_backend ***avail);
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#ifndef MAX_PINNED_PUBKEY_SIZE
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#define MAX_PINNED_PUBKEY_SIZE 1048576 /* 1MB */
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#endif
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#ifndef CURL_SHA256_DIGEST_LENGTH
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#define CURL_SHA256_DIGEST_LENGTH 32 /* fixed size */
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#endif
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char *Curl_ssl_snihost(struct Curl_easy *data, const char *host, size_t *olen);
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bool Curl_ssl_config_matches(struct ssl_primary_config *data,
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struct ssl_primary_config *needle);
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bool Curl_clone_primary_ssl_config(struct ssl_primary_config *source,
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struct ssl_primary_config *dest);
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void Curl_free_primary_ssl_config(struct ssl_primary_config *sslc);
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curl_sslbackend Curl_ssl_backend(void);
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#ifdef USE_SSL
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int Curl_ssl_init(void);
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void Curl_ssl_cleanup(void);
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/* tell the SSL stuff to close down all open information regarding
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connections (and thus session ID caching etc) */
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void Curl_ssl_close_all(struct Curl_easy *data);
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CURLcode Curl_ssl_set_engine(struct Curl_easy *data, const char *engine);
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/* Sets engine as default for all SSL operations */
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CURLcode Curl_ssl_set_engine_default(struct Curl_easy *data);
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struct curl_slist *Curl_ssl_engines_list(struct Curl_easy *data);
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/* init the SSL session ID cache */
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CURLcode Curl_ssl_initsessions(struct Curl_easy *, size_t);
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void Curl_ssl_version(char *buffer, size_t size);
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/* Certificate information list handling. */
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void Curl_ssl_free_certinfo(struct Curl_easy *data);
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CURLcode Curl_ssl_init_certinfo(struct Curl_easy *data, int num);
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CURLcode Curl_ssl_push_certinfo_len(struct Curl_easy *data, int certnum,
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const char *label, const char *value,
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size_t valuelen);
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CURLcode Curl_ssl_push_certinfo(struct Curl_easy *data, int certnum,
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const char *label, const char *value);
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/* Functions to be used by SSL library adaptation functions */
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/* Lock session cache mutex.
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* Call this before calling other Curl_ssl_*session* functions
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* Caller should unlock this mutex as soon as possible, as it may block
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* other SSL connection from making progress.
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* The purpose of explicitly locking SSL session cache data is to allow
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* individual SSL engines to manage session lifetime in their specific way.
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*/
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void Curl_ssl_sessionid_lock(struct Curl_easy *data);
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/* Unlock session cache mutex */
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void Curl_ssl_sessionid_unlock(struct Curl_easy *data);
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/* Kill a single session ID entry in the cache
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* Sessionid mutex must be locked (see Curl_ssl_sessionid_lock).
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* This will call engine-specific curlssl_session_free function, which must
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* take sessionid object ownership from sessionid cache
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* (e.g. decrement refcount).
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*/
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void Curl_ssl_kill_session(struct Curl_ssl_session *session);
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/* delete a session from the cache
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* Sessionid mutex must be locked (see Curl_ssl_sessionid_lock).
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* This will call engine-specific curlssl_session_free function, which must
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* take sessionid object ownership from sessionid cache
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* (e.g. decrement refcount).
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*/
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void Curl_ssl_delsessionid(struct Curl_easy *data, void *ssl_sessionid);
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/* get N random bytes into the buffer */
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CURLcode Curl_ssl_random(struct Curl_easy *data, unsigned char *buffer,
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size_t length);
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/* Check pinned public key. */
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CURLcode Curl_pin_peer_pubkey(struct Curl_easy *data,
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const char *pinnedpubkey,
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const unsigned char *pubkey, size_t pubkeylen);
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bool Curl_ssl_cert_status_request(void);
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bool Curl_ssl_false_start(struct Curl_easy *data);
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void Curl_free_multi_ssl_backend_data(struct multi_ssl_backend_data *mbackend);
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#define SSL_SHUTDOWN_TIMEOUT 10000 /* ms */
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CURLcode Curl_ssl_cfilter_add(struct Curl_easy *data,
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struct connectdata *conn,
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int sockindex);
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CURLcode Curl_cf_ssl_insert_after(struct Curl_cfilter *cf_at,
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struct Curl_easy *data);
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CURLcode Curl_ssl_cfilter_remove(struct Curl_easy *data,
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int sockindex);
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#ifndef CURL_DISABLE_PROXY
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CURLcode Curl_cf_ssl_proxy_insert_after(struct Curl_cfilter *cf_at,
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struct Curl_easy *data);
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#endif /* !CURL_DISABLE_PROXY */
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/**
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* Get the SSL configuration that is used on the connection.
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* This returns NULL if no SSL is configured.
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* Otherwise it returns the config of the first (highest) one that is
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* either connected, in handshake or about to start
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* (e.g. all filters below it are connected). If SSL filters are present,
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* but neither can start operating, return the config of the lowest one
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* that will first come into effect when connecting.
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*/
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struct ssl_config_data *Curl_ssl_get_config(struct Curl_easy *data,
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int sockindex);
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/**
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* True iff the underlying SSL implementation supports the option.
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* Option is one of the defined SSLSUPP_* values.
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* `data` maybe NULL for the features of the default implementation.
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*/
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bool Curl_ssl_supports(struct Curl_easy *data, int ssl_option);
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/**
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* Get the internal ssl instance (like OpenSSL's SSL*) from the filter
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* chain at `sockindex` of type specified by `info`.
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* For `n` == 0, the first active (top down) instance is returned.
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* 1 gives the second active, etc.
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* NULL is returned when no active SSL filter is present.
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*/
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void *Curl_ssl_get_internals(struct Curl_easy *data, int sockindex,
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CURLINFO info, int n);
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extern struct Curl_cftype Curl_cft_ssl;
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extern struct Curl_cftype Curl_cft_ssl_proxy;
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#else /* if not USE_SSL */
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/* When SSL support is not present, just define away these function calls */
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#define Curl_ssl_init() 1
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#define Curl_ssl_cleanup() Curl_nop_stmt
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#define Curl_ssl_close_all(x) Curl_nop_stmt
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#define Curl_ssl_set_engine(x,y) CURLE_NOT_BUILT_IN
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#define Curl_ssl_set_engine_default(x) CURLE_NOT_BUILT_IN
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#define Curl_ssl_engines_list(x) NULL
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#define Curl_ssl_initsessions(x,y) CURLE_OK
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#define Curl_ssl_free_certinfo(x) Curl_nop_stmt
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#define Curl_ssl_kill_session(x) Curl_nop_stmt
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#define Curl_ssl_random(x,y,z) ((void)x, CURLE_NOT_BUILT_IN)
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#define Curl_ssl_cert_status_request() FALSE
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#define Curl_ssl_false_start(a) FALSE
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#define Curl_ssl_get_internals(a,b,c,d) NULL
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#define Curl_ssl_supports(a,b) FALSE
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#define Curl_ssl_cfilter_add(a,b,c) CURLE_NOT_BUILT_IN
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#define Curl_ssl_get_config(a,b) NULL
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#define Curl_ssl_cfilter_remove(a,b) CURLE_OK
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#endif
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#endif /* HEADER_CURL_VTLS_H */
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