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/* |
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* Copyright (C) 2002 Nikos Mavroyanopoulos |
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* |
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* This file is part of Hydra webserver. |
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* |
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* Hydra is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* Hydra 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 |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA |
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*/ |
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|
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#include "boa.h" |
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#include <gnutls/x509.h> |
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|
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#ifdef ENABLE_SSL |
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extern int ssl_verify; |
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#endif |
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|
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/* |
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* Name: add_cgi_env_ssl |
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* |
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* Description: Adds the required environment variables for SSL |
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* secured sessions. |
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* |
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* Return values: |
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* 0 on failure, 1 otherwise. |
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*/ |
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int complete_env_ssl(request * req) |
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{ |
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#ifdef ENABLE_SSL |
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|
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#define CTIME "%b %d %k:%M:%S %Y %Z" |
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|
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#ifndef GNUTLS_MAX_SESSION_ID |
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# define GNUTLS_MAX_SESSION_ID 32 |
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#endif |
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char session_id[GNUTLS_MAX_SESSION_ID]; |
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int session_id_length = sizeof(session_id); |
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int i; |
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char str_session_id[(GNUTLS_MAX_SESSION_ID * 2) + 1]; |
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size_t size; |
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|
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if (!add_cgi_env(req, "SSL_PROTOCOL", |
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gnutls_protocol_get_name(gnutls_protocol_get_version |
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(req->ssl_state)), 0)) |
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return 0; |
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|
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if (!add_cgi_env(req, "HTTPS", "on", 0)) |
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return 0; |
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|
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if (!add_cgi_env(req, "SSL_CLIENT_VERIFY", req->certificate_verified, 0)) |
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return 0; |
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|
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{ |
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char version[20] = "GnuTLS/"; |
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strcat(version, gnutls_check_version(NULL)); |
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if (!add_cgi_env(req, "SSL_VERSION_LIBRARY", version, 0)) |
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return 0; |
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} |
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|
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if (!add_cgi_env(req, "SSL_VERSION_INTERFACE", SERVER_NAME"/"SERVER_VERSION, 0)) |
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return 0; |
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|
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if (!add_cgi_env(req, "SSL_CIPHER", |
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gnutls_cipher_suite_get_name(gnutls_kx_get |
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(req->ssl_state), |
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gnutls_cipher_get(req-> |
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ssl_state), |
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gnutls_mac_get(req-> |
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ssl_state)), |
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0)) |
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return 0; |
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|
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|
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{ |
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char buf[22]; |
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char *p; |
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int keysize = |
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gnutls_cipher_get_key_size(gnutls_cipher_get(req->ssl_state)) * |
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8; |
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simple_itoa(keysize, buf); |
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|
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if (!add_cgi_env(req, "SSL_CIPHER_ALGKEYSIZE", buf, 0)) |
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return 0; |
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|
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if (!add_cgi_env(req, "SSL_CIPHER_USEKEYSIZE", buf, 0)) |
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return 0; |
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|
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if (keysize <= 40) |
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p = "true"; |
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else |
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p = "false"; |
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|
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if (!add_cgi_env(req, "SSL_CIPHER_EXPORT", p, 0)) |
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return 0; |
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} |
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|
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/* generate a printable (HEX) session ID */ |
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if (gnutls_session_get_id |
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(req->ssl_state, session_id, &session_id_length) >= 0) { |
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char *p = str_session_id; |
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|
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for (i = 0; i < session_id_length; i++) { |
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*p++ = HEX((session_id[i] >> 4) & 0x0f); |
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*p++ = HEX((session_id[i]) & 0x0f); |
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} |
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*p = 0; |
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|
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if (!add_cgi_env(req, "SSL_SESSION_ID", str_session_id, 0)) |
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return 0; |
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} |
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|
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{ |
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const gnutls_datum *cert_list; |
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char buf[512]; |
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int cert_list_size, ret; |
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gnutls_x509_crt crt; |
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|
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buf[0] = 0; |
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|
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cert_list = gnutls_certificate_get_ours(req->ssl_state); |
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|
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/* Generate the server's DN |
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*/ |
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if (cert_list) { |
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char serial[64]; |
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char str_serial[129]; |
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time_t vtime; |
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struct tm vtm; |
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|
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ret = gnutls_x509_crt_init( &crt); |
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if (ret < 0) { |
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return 0; |
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} |
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|
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ret = gnutls_x509_crt_import( crt, &cert_list[0], GNUTLS_X509_FMT_DER); |
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if (ret < 0) { |
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gnutls_x509_crt_deinit( crt); |
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return 0; |
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} |
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|
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size = sizeof(buf); |
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if (gnutls_x509_crt_get_dn( crt, buf, &size) < 0) strcpy(buf, "Unknown"); |
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|
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if (!add_cgi_env(req, "SSL_SERVER_S_DN", buf, 0)) { |
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gnutls_x509_crt_deinit( crt); |
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return 0; |
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} |
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|
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size = sizeof(buf); |
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if (gnutls_x509_crt_get_issuer_dn( crt, buf, &size) < 0) |
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strcpy( buf, "Unknown"); |
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|
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if (!add_cgi_env(req, "SSL_SERVER_I_DN", buf, 0)) { |
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gnutls_x509_crt_deinit( crt); |
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return 0; |
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} |
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|
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size = sizeof(serial); |
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if (gnutls_x509_crt_get_serial( crt, serial, &size) >= 0) |
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{ |
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char *p = str_serial; |
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|
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for (i = 0; i < size; i++) { |
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*p++ = HEX((serial[i] >> 4) & 0x0f); |
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*p++ = HEX((serial[i]) & 0x0f); |
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} |
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*p = 0; |
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|
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if (!add_cgi_env(req, "SSL_SERVER_M_SERIAL", str_serial, 0)) { |
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gnutls_x509_crt_deinit( crt); |
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return 0; |
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} |
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|
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} |
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|
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vtime = |
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gnutls_x509_crt_get_expiration_time(crt); |
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gmtime_r(&vtime, &vtm); |
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|
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strftime(str_serial, sizeof(str_serial) - 1, CTIME, &vtm); |
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|
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if (!add_cgi_env(req, "SSL_SERVER_V_END", str_serial, 0)) { |
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gnutls_x509_crt_deinit( crt); |
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return 0; |
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} |
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|
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vtime = |
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gnutls_x509_crt_get_activation_time(crt); |
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gmtime_r(&vtime, &vtm); |
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|
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strftime(str_serial, sizeof(str_serial) - 1, CTIME, &vtm); |
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|
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if (!add_cgi_env(req, "SSL_SERVER_V_START", str_serial, 0)) { |
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gnutls_x509_crt_deinit( crt); |
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return 0; |
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} |
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|
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gnutls_x509_crt_deinit( crt); |
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} |
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|
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if (ssl_verify >= 1) { |
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/* Read peer's certificate - if any |
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*/ |
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cert_list = |
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gnutls_certificate_get_peers(req->ssl_state, &cert_list_size); |
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|
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if (cert_list != NULL) { |
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char serial[64]; |
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char str_serial[129]; |
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time_t vtime; |
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struct tm vtm; |
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|
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ret = gnutls_x509_crt_init( &crt); |
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if (ret < 0) { |
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return 0; |
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} |
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|
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ret = gnutls_x509_crt_import( crt, &cert_list[0], GNUTLS_X509_FMT_DER); |
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if (ret < 0) { |
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gnutls_x509_crt_deinit( crt); |
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return 0; |
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} |
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|
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size = sizeof(buf); |
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if (gnutls_x509_crt_get_dn( crt, buf, &size) < 0) |
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strcpy( buf, "Unknown"); |
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|
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if (!add_cgi_env(req, "SSL_CLIENT_S_DN", buf, 0)) { |
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gnutls_x509_crt_deinit( crt); |
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return 0; |
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} |
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|
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size = sizeof(buf); |
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if (gnutls_x509_crt_get_issuer_dn( crt, buf, &size) < 0) |
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strcpy( buf, "Unknown"); |
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|
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if (!add_cgi_env(req, "SSL_CLIENT_I_DN", buf, 0)) { |
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gnutls_x509_crt_deinit( crt); |
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return 0; |
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} |
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|
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/* Extract serial and expiration time. |
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*/ |
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size = sizeof( serial); |
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if (gnutls_x509_crt_get_serial( crt, serial, &size) >= 0) { |
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char *p = str_serial; |
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|
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for (i = 0; i < size; i++) { |
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*p++ = HEX((serial[i] >> 4) & 0x0f); |
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*p++ = HEX((serial[i]) & 0x0f); |
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} |
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*p = 0; |
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|
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if (!add_cgi_env(req, "SSL_CLIENT_M_SERIAL", str_serial, 0)) { |
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gnutls_x509_crt_deinit( crt); |
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return 0; |
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} |
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|
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} |
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|
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vtime = |
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gnutls_x509_crt_get_expiration_time(crt); |
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gmtime_r(&vtime, &vtm); |
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|
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strftime(str_serial, sizeof(str_serial) - 1, CTIME, &vtm); |
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|
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if (!add_cgi_env(req, "SSL_CLIENT_V_END", str_serial, 0)) { |
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gnutls_x509_crt_deinit( crt); |
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return 0; |
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} |
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|
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vtime = gnutls_x509_crt_get_activation_time(crt); |
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gmtime_r(&vtime, &vtm); |
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|
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strftime(str_serial, sizeof(str_serial) - 1, CTIME, &vtm); |
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|
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if (!add_cgi_env(req, "SSL_CLIENT_V_START", str_serial, 0)) { |
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gnutls_x509_crt_deinit( crt); |
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return 0; |
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} |
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|
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gnutls_x509_crt_deinit( crt); |
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|
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} |
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} |
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|
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} |
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|
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return 1; |
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#else |
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return 1; |
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#endif |
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} |
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