diff options
Diffstat (limited to 'thirdparty/libwebsockets/tls/tls-client.c')
| -rw-r--r-- | thirdparty/libwebsockets/tls/tls-client.c | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/thirdparty/libwebsockets/tls/tls-client.c b/thirdparty/libwebsockets/tls/tls-client.c new file mode 100644 index 0000000000..70eb6f6078 --- /dev/null +++ b/thirdparty/libwebsockets/tls/tls-client.c @@ -0,0 +1,150 @@ +/* + * libwebsockets - client-related ssl code independent of backend + * + * Copyright (C) 2010-2017 Andy Green <andy@warmcat.com> + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation: + * version 2.1 of the License. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, + * MA 02110-1301 USA + */ + +#include "core/private.h" + +int +lws_ssl_client_connect1(struct lws *wsi) +{ + struct lws_context *context = wsi->context; + int n = 0; + + lws_latency_pre(context, wsi); + n = lws_tls_client_connect(wsi); + lws_latency(context, wsi, "SSL_connect hs", n, n > 0); + + switch (n) { + case LWS_SSL_CAPABLE_ERROR: + return -1; + case LWS_SSL_CAPABLE_DONE: + return 1; /* connected */ + case LWS_SSL_CAPABLE_MORE_SERVICE_WRITE: + lws_callback_on_writable(wsi); + /* fallthru */ + case LWS_SSL_CAPABLE_MORE_SERVICE_READ: + lwsi_set_state(wsi, LRS_WAITING_SSL); + break; + case LWS_SSL_CAPABLE_MORE_SERVICE: + break; + } + + return 0; /* retry */ +} + +int +lws_ssl_client_connect2(struct lws *wsi, char *errbuf, int len) +{ + int n = 0; + + if (lwsi_state(wsi) == LRS_WAITING_SSL) { + lws_latency_pre(wsi->context, wsi); + + n = lws_tls_client_connect(wsi); + lwsl_debug("%s: SSL_connect says %d\n", __func__, n); + lws_latency(wsi->context, wsi, + "SSL_connect LRS_WAITING_SSL", n, n > 0); + + switch (n) { + case LWS_SSL_CAPABLE_ERROR: + lws_snprintf(errbuf, len, "client connect failed"); + return -1; + case LWS_SSL_CAPABLE_DONE: + break; /* connected */ + case LWS_SSL_CAPABLE_MORE_SERVICE_WRITE: + lws_callback_on_writable(wsi); + /* fallthru */ + case LWS_SSL_CAPABLE_MORE_SERVICE_READ: + lwsi_set_state(wsi, LRS_WAITING_SSL); + /* fallthru */ + case LWS_SSL_CAPABLE_MORE_SERVICE: + return 0; + } + } + + if (lws_tls_client_confirm_peer_cert(wsi, errbuf, len)) + return -1; + + return 1; +} + + +int lws_context_init_client_ssl(const struct lws_context_creation_info *info, + struct lws_vhost *vhost) +{ + const char *ca_filepath = info->ssl_ca_filepath; + const char *cipher_list = info->ssl_cipher_list; + const char *private_key_filepath = info->ssl_private_key_filepath; + const char *cert_filepath = info->ssl_cert_filepath; + struct lws wsi; + + if (vhost->options & LWS_SERVER_OPTION_ONLY_RAW) + return 0; + + /* + * for backwards-compatibility default to using ssl_... members, but + * if the newer client-specific ones are given, use those + */ + if (info->client_ssl_cipher_list) + cipher_list = info->client_ssl_cipher_list; + if (info->client_ssl_cert_filepath) + cert_filepath = info->client_ssl_cert_filepath; + if (info->client_ssl_private_key_filepath) + private_key_filepath = info->client_ssl_private_key_filepath; + + if (info->client_ssl_ca_filepath) + ca_filepath = info->client_ssl_ca_filepath; + + if (!lws_check_opt(info->options, LWS_SERVER_OPTION_DO_SSL_GLOBAL_INIT)) + return 0; + + if (vhost->tls.ssl_client_ctx) + return 0; + + if (info->provided_client_ssl_ctx) { + /* use the provided OpenSSL context if given one */ + vhost->tls.ssl_client_ctx = info->provided_client_ssl_ctx; + /* nothing for lib to delete */ + vhost->tls.user_supplied_ssl_ctx = 1; + + return 0; + } + + if (lws_tls_client_create_vhost_context(vhost, info, cipher_list, + ca_filepath, cert_filepath, + private_key_filepath)) + return 1; + + lwsl_notice("created client ssl context for %s\n", vhost->name); + + /* + * give him a fake wsi with context set, so he can use + * lws_get_context() in the callback + */ + memset(&wsi, 0, sizeof(wsi)); + wsi.vhost = vhost; + wsi.context = vhost->context; + + vhost->protocols[0].callback(&wsi, + LWS_CALLBACK_OPENSSL_LOAD_EXTRA_CLIENT_VERIFY_CERTS, + vhost->tls.ssl_client_ctx, NULL, 0); + + return 0; +} |