287 lines
8.4 KiB
C++
287 lines
8.4 KiB
C++
/*
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* libwebsockets - small server side websockets and web server implementation
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*
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* Copyright (C) 2010 - 2018 Andy Green <andy@warmcat.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation:
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* version 2.1 of the License.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301 USA
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*
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* This is included from core/private.h if LWS_WITH_TLS
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*/
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#if defined(LWS_WITH_TLS)
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#if defined(USE_WOLFSSL)
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#if defined(USE_OLD_CYASSL)
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#if defined(_WIN32)
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#include <IDE/WIN/user_settings.h>
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#include <cyassl/ctaocrypt/settings.h>
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#else
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#include <cyassl/options.h>
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#endif
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#include <cyassl/openssl/ssl.h>
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#include <cyassl/error-ssl.h>
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#else
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#if defined(_WIN32)
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#include <IDE/WIN/user_settings.h>
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#include <wolfssl/wolfcrypt/settings.h>
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#else
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#include <wolfssl/options.h>
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#endif
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#include <wolfssl/openssl/ssl.h>
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#include <wolfssl/error-ssl.h>
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#define OPENSSL_NO_TLSEXT
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#endif /* not USE_OLD_CYASSL */
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#else /* WOLFSSL */
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#if defined(LWS_WITH_ESP32)
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#define OPENSSL_NO_TLSEXT
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#undef MBEDTLS_CONFIG_FILE
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#define MBEDTLS_CONFIG_FILE <mbedtls/esp_config.h>
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#include <mbedtls/ssl.h>
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#include <mbedtls/x509_crt.h>
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#include "tls/mbedtls/wrapper/include/openssl/ssl.h" /* wrapper !!!! */
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#else /* not esp32 */
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#if defined(LWS_WITH_MBEDTLS)
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#include <mbedtls/ssl.h>
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#include <mbedtls/x509_crt.h>
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#include <mbedtls/x509_csr.h>
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#include "tls/mbedtls/wrapper/include/openssl/ssl.h" /* wrapper !!!! */
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#else
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#include <openssl/ssl.h>
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#include <openssl/evp.h>
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#include <openssl/err.h>
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#include <openssl/md5.h>
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#include <openssl/sha.h>
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#include <openssl/rsa.h>
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#include <openssl/bn.h>
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#ifdef LWS_HAVE_OPENSSL_ECDH_H
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#include <openssl/ecdh.h>
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#endif
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#include <openssl/x509v3.h>
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#endif /* not mbedtls */
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#if defined(OPENSSL_VERSION_NUMBER)
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#if (OPENSSL_VERSION_NUMBER < 0x0009080afL)
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/*
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* later openssl defines this to negate the presence of tlsext... but it was
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* only introduced at 0.9.8j. Earlier versions don't know it exists so don't
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* define it... making it look like the feature exists...
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*/
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#define OPENSSL_NO_TLSEXT
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#endif
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#endif
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#endif /* not ESP32 */
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#endif /* not USE_WOLFSSL */
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#endif /* LWS_WITH_TLS */
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enum lws_tls_extant {
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LWS_TLS_EXTANT_NO,
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LWS_TLS_EXTANT_YES,
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LWS_TLS_EXTANT_ALTERNATIVE
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};
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struct lws_context_per_thread;
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struct lws_tls_ops {
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int (*fake_POLLIN_for_buffered)(struct lws_context_per_thread *pt);
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int (*periodic_housekeeping)(struct lws_context *context, time_t now);
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};
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#if defined(LWS_WITH_TLS)
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typedef SSL lws_tls_conn;
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typedef SSL_CTX lws_tls_ctx;
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typedef BIO lws_tls_bio;
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typedef X509 lws_tls_x509;
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#define LWS_SSL_ENABLED(context) (context->tls.use_ssl)
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extern const struct lws_tls_ops tls_ops_openssl, tls_ops_mbedtls;
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struct lws_context_tls {
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char alpn_discovered[32];
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const char *alpn_default;
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time_t last_cert_check_s;
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};
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struct lws_pt_tls {
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struct lws_dll_lws pending_tls_head;
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};
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struct lws_tls_ss_pieces;
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struct alpn_ctx {
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uint8_t data[23];
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uint8_t len;
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};
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struct lws_vhost_tls {
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lws_tls_ctx *ssl_ctx;
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lws_tls_ctx *ssl_client_ctx;
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const char *alpn;
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struct lws_tls_ss_pieces *ss; /* for acme tls certs */
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char *alloc_cert_path;
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char *key_path;
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#if defined(LWS_WITH_MBEDTLS)
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lws_tls_x509 *x509_client_CA;
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#endif
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char ecdh_curve[16];
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struct alpn_ctx alpn_ctx;
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int use_ssl;
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int allow_non_ssl_on_ssl_port;
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int ssl_info_event_mask;
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unsigned int user_supplied_ssl_ctx:1;
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unsigned int skipped_certs:1;
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};
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struct lws_lws_tls {
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lws_tls_conn *ssl;
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lws_tls_bio *client_bio;
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struct lws_dll_lws pending_tls_list;
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unsigned int use_ssl;
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unsigned int redirect_to_https:1;
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};
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LWS_EXTERN void
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lws_context_init_alpn(struct lws_vhost *vhost);
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LWS_EXTERN enum lws_tls_extant
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lws_tls_use_any_upgrade_check_extant(const char *name);
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LWS_EXTERN int openssl_websocket_private_data_index;
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LWS_EXTERN int LWS_WARN_UNUSED_RESULT
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lws_ssl_capable_read(struct lws *wsi, unsigned char *buf, int len);
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LWS_EXTERN int LWS_WARN_UNUSED_RESULT
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lws_ssl_capable_write(struct lws *wsi, unsigned char *buf, int len);
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LWS_EXTERN int LWS_WARN_UNUSED_RESULT
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lws_ssl_pending(struct lws *wsi);
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LWS_EXTERN int
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lws_context_init_ssl_library(const struct lws_context_creation_info *info);
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LWS_EXTERN int LWS_WARN_UNUSED_RESULT
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lws_server_socket_service_ssl(struct lws *new_wsi, lws_sockfd_type accept_fd);
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LWS_EXTERN int
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lws_ssl_close(struct lws *wsi);
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LWS_EXTERN void
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lws_ssl_SSL_CTX_destroy(struct lws_vhost *vhost);
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LWS_EXTERN void
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lws_ssl_context_destroy(struct lws_context *context);
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void
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__lws_ssl_remove_wsi_from_buffered_list(struct lws *wsi);
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LWS_VISIBLE void
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lws_ssl_remove_wsi_from_buffered_list(struct lws *wsi);
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LWS_EXTERN int
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lws_ssl_client_bio_create(struct lws *wsi);
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LWS_EXTERN int
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lws_ssl_client_connect1(struct lws *wsi);
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LWS_EXTERN int
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lws_ssl_client_connect2(struct lws *wsi, char *errbuf, int len);
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LWS_EXTERN void
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lws_ssl_elaborate_error(void);
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LWS_EXTERN int
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lws_tls_fake_POLLIN_for_buffered(struct lws_context_per_thread *pt);
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LWS_EXTERN int
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lws_gate_accepts(struct lws_context *context, int on);
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LWS_EXTERN void
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lws_ssl_bind_passphrase(lws_tls_ctx *ssl_ctx,
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const struct lws_context_creation_info *info);
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LWS_EXTERN void
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lws_ssl_info_callback(const lws_tls_conn *ssl, int where, int ret);
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LWS_EXTERN int
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lws_tls_openssl_cert_info(X509 *x509, enum lws_tls_cert_info type,
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union lws_tls_cert_info_results *buf, size_t len);
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LWS_EXTERN int
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lws_tls_check_all_cert_lifetimes(struct lws_context *context);
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LWS_EXTERN int
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lws_tls_server_certs_load(struct lws_vhost *vhost, struct lws *wsi,
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const char *cert, const char *private_key,
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const char *mem_cert, size_t len_mem_cert,
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const char *mem_privkey, size_t mem_privkey_len);
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LWS_EXTERN enum lws_tls_extant
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lws_tls_generic_cert_checks(struct lws_vhost *vhost, const char *cert,
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const char *private_key);
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LWS_EXTERN int
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lws_tls_alloc_pem_to_der_file(struct lws_context *context, const char *filename,
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const char *inbuf, lws_filepos_t inlen,
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uint8_t **buf, lws_filepos_t *amount);
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#if !defined(LWS_NO_SERVER)
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LWS_EXTERN int
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lws_context_init_server_ssl(const struct lws_context_creation_info *info,
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struct lws_vhost *vhost);
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void
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lws_tls_acme_sni_cert_destroy(struct lws_vhost *vhost);
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#else
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#define lws_context_init_server_ssl(_a, _b) (0)
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#define lws_tls_acme_sni_cert_destroy(_a)
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#endif
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LWS_EXTERN void
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lws_ssl_destroy(struct lws_vhost *vhost);
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LWS_EXTERN char *
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lws_ssl_get_error_string(int status, int ret, char *buf, size_t len);
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/*
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* lws_tls_ abstract backend implementations
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*/
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LWS_EXTERN int
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lws_tls_server_client_cert_verify_config(struct lws_vhost *vh);
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LWS_EXTERN int
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lws_tls_server_vhost_backend_init(const struct lws_context_creation_info *info,
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struct lws_vhost *vhost, struct lws *wsi);
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LWS_EXTERN int
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lws_tls_server_new_nonblocking(struct lws *wsi, lws_sockfd_type accept_fd);
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LWS_EXTERN enum lws_ssl_capable_status
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lws_tls_server_accept(struct lws *wsi);
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LWS_EXTERN enum lws_ssl_capable_status
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lws_tls_server_abort_connection(struct lws *wsi);
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LWS_EXTERN enum lws_ssl_capable_status
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__lws_tls_shutdown(struct lws *wsi);
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LWS_EXTERN enum lws_ssl_capable_status
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lws_tls_client_connect(struct lws *wsi);
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LWS_EXTERN int
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lws_tls_client_confirm_peer_cert(struct lws *wsi, char *ebuf, int ebuf_len);
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LWS_EXTERN int
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lws_tls_client_create_vhost_context(struct lws_vhost *vh,
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const struct lws_context_creation_info *info,
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const char *cipher_list,
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const char *ca_filepath,
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const void *ca_mem,
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unsigned int ca_mem_len,
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const char *cert_filepath,
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const char *private_key_filepath);
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LWS_EXTERN lws_tls_ctx *
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lws_tls_ctx_from_wsi(struct lws *wsi);
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LWS_EXTERN int
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lws_ssl_get_error(struct lws *wsi, int n);
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LWS_EXTERN int
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lws_context_init_client_ssl(const struct lws_context_creation_info *info,
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struct lws_vhost *vhost);
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LWS_EXTERN void
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lws_ssl_info_callback(const lws_tls_conn *ssl, int where, int ret);
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int
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lws_tls_fake_POLLIN_for_buffered(struct lws_context_per_thread *pt);
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#endif
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