--- /dev/null
+/* apps/s_cb.c - callback functions used by s_client, s_server, and s_time */
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young (eay@cryptsoft.com).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to. The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code. The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson (tjh@cryptsoft.com).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * "This product includes cryptographic software written by
+ * Eric Young (eay@cryptsoft.com)"
+ * The word 'cryptographic' can be left out if the rouines from the library
+ * being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ * the apps directory (application code) you must include an acknowledgement:
+ * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed. i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.]
+ */
+/* ====================================================================
+ * Copyright (c) 1998-2006 The OpenSSL Project. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ * software must display the following acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ * endorse or promote products derived from this software without
+ * prior written permission. For written permission, please contact
+ * openssl-core@openssl.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ * nor may "OpenSSL" appear in their names without prior written
+ * permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ * acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * (eay@cryptsoft.com). This product includes software written by Tim
+ * Hudson (tjh@cryptsoft.com).
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#define USE_SOCKETS
+#define NON_MAIN
+#include "apps.h"
+#undef NON_MAIN
+#undef USE_SOCKETS
+#include <openssl/err.h>
+#include <openssl/rand.h>
+#include <openssl/x509.h>
+#include <openssl/ssl.h>
+#include "s_apps.h"
+
+#define COOKIE_SECRET_LENGTH 16
+
+int verify_depth=0;
+int verify_error=X509_V_OK;
+int verify_return_error=0;
+unsigned char cookie_secret[COOKIE_SECRET_LENGTH];
+int cookie_initialized=0;
+
+int MS_CALLBACK verify_callback(int ok, X509_STORE_CTX *ctx)
+ {
+ X509 *err_cert;
+ int err,depth;
+
+ err_cert=X509_STORE_CTX_get_current_cert(ctx);
+ err= X509_STORE_CTX_get_error(ctx);
+ depth= X509_STORE_CTX_get_error_depth(ctx);
+
+ BIO_printf(bio_err,"depth=%d ",depth);
+ if (err_cert)
+ {
+ X509_NAME_print_ex(bio_err, X509_get_subject_name(err_cert),
+ 0, XN_FLAG_ONELINE);
+ BIO_puts(bio_err, "\n");
+ }
+ else
+ BIO_puts(bio_err, "<no cert>\n");
+ if (!ok)
+ {
+ BIO_printf(bio_err,"verify error:num=%d:%s\n",err,
+ X509_verify_cert_error_string(err));
+ if (verify_depth >= depth)
+ {
+ if (!verify_return_error)
+ ok=1;
+ verify_error=X509_V_OK;
+ }
+ else
+ {
+ ok=0;
+ verify_error=X509_V_ERR_CERT_CHAIN_TOO_LONG;
+ }
+ }
+ switch (err)
+ {
+ case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
+ BIO_puts(bio_err,"issuer= ");
+ X509_NAME_print_ex(bio_err, X509_get_issuer_name(err_cert),
+ 0, XN_FLAG_ONELINE);
+ BIO_puts(bio_err, "\n");
+ break;
+ case X509_V_ERR_CERT_NOT_YET_VALID:
+ case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD:
+ BIO_printf(bio_err,"notBefore=");
+ ASN1_TIME_print(bio_err,X509_get_notBefore(err_cert));
+ BIO_printf(bio_err,"\n");
+ break;
+ case X509_V_ERR_CERT_HAS_EXPIRED:
+ case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD:
+ BIO_printf(bio_err,"notAfter=");
+ ASN1_TIME_print(bio_err,X509_get_notAfter(err_cert));
+ BIO_printf(bio_err,"\n");
+ break;
+ case X509_V_ERR_NO_EXPLICIT_POLICY:
+ policies_print(bio_err, ctx);
+ break;
+ }
+ if (err == X509_V_OK && ok == 2)
+ policies_print(bio_err, ctx);
+
+ BIO_printf(bio_err,"verify return:%d\n",ok);
+ return(ok);
+ }
+
+int set_cert_stuff(SSL_CTX *ctx, char *cert_file, char *key_file)
+ {
+ if (cert_file != NULL)
+ {
+ /*
+ SSL *ssl;
+ X509 *x509;
+ */
+
+ if (SSL_CTX_use_certificate_file(ctx,cert_file,
+ SSL_FILETYPE_PEM) <= 0)
+ {
+ BIO_printf(bio_err,"unable to get certificate from '%s'\n",cert_file);
+ ERR_print_errors(bio_err);
+ return(0);
+ }
+ if (key_file == NULL) key_file=cert_file;
+ if (SSL_CTX_use_PrivateKey_file(ctx,key_file,
+ SSL_FILETYPE_PEM) <= 0)
+ {
+ BIO_printf(bio_err,"unable to get private key from '%s'\n",key_file);
+ ERR_print_errors(bio_err);
+ return(0);
+ }
+
+ /*
+ In theory this is no longer needed
+ ssl=SSL_new(ctx);
+ x509=SSL_get_certificate(ssl);
+
+ if (x509 != NULL) {
+ EVP_PKEY *pktmp;
+ pktmp = X509_get_pubkey(x509);
+ EVP_PKEY_copy_parameters(pktmp,
+ SSL_get_privatekey(ssl));
+ EVP_PKEY_free(pktmp);
+ }
+ SSL_free(ssl);
+ */
+
+ /* If we are using DSA, we can copy the parameters from
+ * the private key */
+
+
+ /* Now we know that a key and cert have been set against
+ * the SSL context */
+ if (!SSL_CTX_check_private_key(ctx))
+ {
+ BIO_printf(bio_err,"Private key does not match the certificate public key\n");
+ return(0);
+ }
+ }
+ return(1);
+ }
+
+int set_cert_key_stuff(SSL_CTX *ctx, X509 *cert, EVP_PKEY *key)
+ {
+ if (cert == NULL)
+ return 1;
+ if (SSL_CTX_use_certificate(ctx,cert) <= 0)
+ {
+ BIO_printf(bio_err,"error setting certificate\n");
+ ERR_print_errors(bio_err);
+ return 0;
+ }
+ if (SSL_CTX_use_PrivateKey(ctx,key) <= 0)
+ {
+ BIO_printf(bio_err,"error setting private key\n");
+ ERR_print_errors(bio_err);
+ return 0;
+ }
+
+
+ /* Now we know that a key and cert have been set against
+ * the SSL context */
+ if (!SSL_CTX_check_private_key(ctx))
+ {
+ BIO_printf(bio_err,"Private key does not match the certificate public key\n");
+ return 0;
+ }
+ return 1;
+ }
+
+long MS_CALLBACK bio_dump_callback(BIO *bio, int cmd, const char *argp,
+ int argi, long argl, long ret)
+ {
+ BIO *out;
+
+ out=(BIO *)BIO_get_callback_arg(bio);
+ if (out == NULL) return(ret);
+
+ if (cmd == (BIO_CB_READ|BIO_CB_RETURN))
+ {
+ BIO_printf(out,"read from %p [%p] (%lu bytes => %ld (0x%lX))\n",
+ (void *)bio,argp,(unsigned long)argi,ret,ret);
+ BIO_dump(out,argp,(int)ret);
+ return(ret);
+ }
+ else if (cmd == (BIO_CB_WRITE|BIO_CB_RETURN))
+ {
+ BIO_printf(out,"write to %p [%p] (%lu bytes => %ld (0x%lX))\n",
+ (void *)bio,argp,(unsigned long)argi,ret,ret);
+ BIO_dump(out,argp,(int)ret);
+ }
+ return(ret);
+ }
+
+void MS_CALLBACK apps_ssl_info_callback(const SSL *s, int where, int ret)
+ {
+ const char *str;
+ int w;
+
+ w=where& ~SSL_ST_MASK;
+
+ if (w & SSL_ST_CONNECT) str="SSL_connect";
+ else if (w & SSL_ST_ACCEPT) str="SSL_accept";
+ else str="undefined";
+
+ if (where & SSL_CB_LOOP)
+ {
+ BIO_printf(bio_err,"%s:%s\n",str,SSL_state_string_long(s));
+ }
+ else if (where & SSL_CB_ALERT)
+ {
+ str=(where & SSL_CB_READ)?"read":"write";
+ BIO_printf(bio_err,"SSL3 alert %s:%s:%s\n",
+ str,
+ SSL_alert_type_string_long(ret),
+ SSL_alert_desc_string_long(ret));
+ }
+ else if (where & SSL_CB_EXIT)
+ {
+ if (ret == 0)
+ BIO_printf(bio_err,"%s:failed in %s\n",
+ str,SSL_state_string_long(s));
+ else if (ret < 0)
+ {
+ BIO_printf(bio_err,"%s:error in %s\n",
+ str,SSL_state_string_long(s));
+ }
+ }
+ }
+
+
+void MS_CALLBACK msg_cb(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg)
+ {
+ BIO *bio = arg;
+ const char *str_write_p, *str_version, *str_content_type = "", *str_details1 = "", *str_details2= "";
+
+ str_write_p = write_p ? ">>>" : "<<<";
+
+ switch (version)
+ {
+ case SSL2_VERSION:
+ str_version = "SSL 2.0";
+ break;
+ case SSL3_VERSION:
+ str_version = "SSL 3.0 ";
+ break;
+ case TLS1_VERSION:
+ str_version = "TLS 1.0 ";
+ break;
+ case TLS1_1_VERSION:
+ str_version = "TLS 1.1 ";
+ break;
+ case TLS1_2_VERSION:
+ str_version = "TLS 1.2 ";
+ break;
+ case DTLS1_VERSION:
+ str_version = "DTLS 1.0 ";
+ break;
+ case DTLS1_BAD_VER:
+ str_version = "DTLS 1.0 (bad) ";
+ break;
+ default:
+ str_version = "???";
+ }
+
+ if (version == SSL2_VERSION)
+ {
+ str_details1 = "???";
+
+ if (len > 0)
+ {
+ switch (((const unsigned char*)buf)[0])
+ {
+ case 0:
+ str_details1 = ", ERROR:";
+ str_details2 = " ???";
+ if (len >= 3)
+ {
+ unsigned err = (((const unsigned char*)buf)[1]<<8) + ((const unsigned char*)buf)[2];
+
+ switch (err)
+ {
+ case 0x0001:
+ str_details2 = " NO-CIPHER-ERROR";
+ break;
+ case 0x0002:
+ str_details2 = " NO-CERTIFICATE-ERROR";
+ break;
+ case 0x0004:
+ str_details2 = " BAD-CERTIFICATE-ERROR";
+ break;
+ case 0x0006:
+ str_details2 = " UNSUPPORTED-CERTIFICATE-TYPE-ERROR";
+ break;
+ }
+ }
+
+ break;
+ case 1:
+ str_details1 = ", CLIENT-HELLO";
+ break;
+ case 2:
+ str_details1 = ", CLIENT-MASTER-KEY";
+ break;
+ case 3:
+ str_details1 = ", CLIENT-FINISHED";
+ break;
+ case 4:
+ str_details1 = ", SERVER-HELLO";
+ break;
+ case 5:
+ str_details1 = ", SERVER-VERIFY";
+ break;
+ case 6:
+ str_details1 = ", SERVER-FINISHED";
+ break;
+ case 7:
+ str_details1 = ", REQUEST-CERTIFICATE";
+ break;
+ case 8:
+ str_details1 = ", CLIENT-CERTIFICATE";
+ break;
+ }
+ }
+ }
+
+ if (version == SSL3_VERSION ||
+ version == TLS1_VERSION ||
+ version == TLS1_1_VERSION ||
+ version == TLS1_2_VERSION ||
+ version == DTLS1_VERSION ||
+ version == DTLS1_BAD_VER)
+ {
+ switch (content_type)
+ {
+ case 20:
+ str_content_type = "ChangeCipherSpec";
+ break;
+ case 21:
+ str_content_type = "Alert";
+ break;
+ case 22:
+ str_content_type = "Handshake";
+ break;
+ }
+
+ if (content_type == 21) /* Alert */
+ {
+ str_details1 = ", ???";
+
+ if (len == 2)
+ {
+ switch (((const unsigned char*)buf)[0])
+ {
+ case 1:
+ str_details1 = ", warning";
+ break;
+ case 2:
+ str_details1 = ", fatal";
+ break;
+ }
+
+ str_details2 = " ???";
+ switch (((const unsigned char*)buf)[1])
+ {
+ case 0:
+ str_details2 = " close_notify";
+ break;
+ case 10:
+ str_details2 = " unexpected_message";
+ break;
+ case 20:
+ str_details2 = " bad_record_mac";
+ break;
+ case 21:
+ str_details2 = " decryption_failed";
+ break;
+ case 22:
+ str_details2 = " record_overflow";
+ break;
+ case 30:
+ str_details2 = " decompression_failure";
+ break;
+ case 40:
+ str_details2 = " handshake_failure";
+ break;
+ case 42:
+ str_details2 = " bad_certificate";
+ break;
+ case 43:
+ str_details2 = " unsupported_certificate";
+ break;
+ case 44:
+ str_details2 = " certificate_revoked";
+ break;
+ case 45:
+ str_details2 = " certificate_expired";
+ break;
+ case 46:
+ str_details2 = " certificate_unknown";
+ break;
+ case 47:
+ str_details2 = " illegal_parameter";
+ break;
+ case 48:
+ str_details2 = " unknown_ca";
+ break;
+ case 49:
+ str_details2 = " access_denied";
+ break;
+ case 50:
+ str_details2 = " decode_error";
+ break;
+ case 51:
+ str_details2 = " decrypt_error";
+ break;
+ case 60:
+ str_details2 = " export_restriction";
+ break;
+ case 70:
+ str_details2 = " protocol_version";
+ break;
+ case 71:
+ str_details2 = " insufficient_security";
+ break;
+ case 80:
+ str_details2 = " internal_error";
+ break;
+ case 90:
+ str_details2 = " user_canceled";
+ break;
+ case 100:
+ str_details2 = " no_renegotiation";
+ break;
+ case 110:
+ str_details2 = " unsupported_extension";
+ break;
+ case 111:
+ str_details2 = " certificate_unobtainable";
+ break;
+ case 112:
+ str_details2 = " unrecognized_name";
+ break;
+ case 113:
+ str_details2 = " bad_certificate_status_response";
+ break;
+ case 114:
+ str_details2 = " bad_certificate_hash_value";
+ break;
+ case 115:
+ str_details2 = " unknown_psk_identity";
+ break;
+ }
+ }
+ }
+
+ if (content_type == 22) /* Handshake */
+ {
+ str_details1 = "???";
+
+ if (len > 0)
+ {
+ switch (((const unsigned char*)buf)[0])
+ {
+ case 0:
+ str_details1 = ", HelloRequest";
+ break;
+ case 1:
+ str_details1 = ", ClientHello";
+ break;
+ case 2:
+ str_details1 = ", ServerHello";
+ break;
+ case 3:
+ str_details1 = ", HelloVerifyRequest";
+ break;
+ case 11:
+ str_details1 = ", Certificate";
+ break;
+ case 12:
+ str_details1 = ", ServerKeyExchange";
+ break;
+ case 13:
+ str_details1 = ", CertificateRequest";
+ break;
+ case 14:
+ str_details1 = ", ServerHelloDone";
+ break;
+ case 15:
+ str_details1 = ", CertificateVerify";
+ break;
+ case 16:
+ str_details1 = ", ClientKeyExchange";
+ break;
+ case 20:
+ str_details1 = ", Finished";
+ break;
+ }
+ }
+ }
+
+#ifndef OPENSSL_NO_HEARTBEATS
+ if (content_type == 24) /* Heartbeat */
+ {
+ str_details1 = ", Heartbeat";
+
+ if (len > 0)
+ {
+ switch (((const unsigned char*)buf)[0])
+ {
+ case 1:
+ str_details1 = ", HeartbeatRequest";
+ break;
+ case 2:
+ str_details1 = ", HeartbeatResponse";
+ break;
+ }
+ }
+ }
+#endif
+ }
+
+ BIO_printf(bio, "%s %s%s [length %04lx]%s%s\n", str_write_p, str_version, str_content_type, (unsigned long)len, str_details1, str_details2);
+
+ if (len > 0)
+ {
+ size_t num, i;
+
+ BIO_printf(bio, " ");
+ num = len;
+#if 0
+ if (num > 16)
+ num = 16;
+#endif
+ for (i = 0; i < num; i++)
+ {
+ if (i % 16 == 0 && i > 0)
+ BIO_printf(bio, "\n ");
+ BIO_printf(bio, " %02x", ((const unsigned char*)buf)[i]);
+ }
+ if (i < len)
+ BIO_printf(bio, " ...");
+ BIO_printf(bio, "\n");
+ }
+ (void)BIO_flush(bio);
+ }
+
+void MS_CALLBACK tlsext_cb(SSL *s, int client_server, int type,
+ unsigned char *data, int len,
+ void *arg)
+ {
+ BIO *bio = arg;
+ char *extname;
+
+ switch(type)
+ {
+ case TLSEXT_TYPE_server_name:
+ extname = "server name";
+ break;
+
+ case TLSEXT_TYPE_max_fragment_length:
+ extname = "max fragment length";
+ break;
+
+ case TLSEXT_TYPE_client_certificate_url:
+ extname = "client certificate URL";
+ break;
+
+ case TLSEXT_TYPE_trusted_ca_keys:
+ extname = "trusted CA keys";
+ break;
+
+ case TLSEXT_TYPE_truncated_hmac:
+ extname = "truncated HMAC";
+ break;
+
+ case TLSEXT_TYPE_status_request:
+ extname = "status request";
+ break;
+
+ case TLSEXT_TYPE_user_mapping:
+ extname = "user mapping";
+ break;
+
+ case TLSEXT_TYPE_client_authz:
+ extname = "client authz";
+ break;
+
+ case TLSEXT_TYPE_server_authz:
+ extname = "server authz";
+ break;
+
+ case TLSEXT_TYPE_cert_type:
+ extname = "cert type";
+ break;
+
+ case TLSEXT_TYPE_elliptic_curves:
+ extname = "elliptic curves";
+ break;
+
+ case TLSEXT_TYPE_ec_point_formats:
+ extname = "EC point formats";
+ break;
+
+ case TLSEXT_TYPE_srp:
+ extname = "SRP";
+ break;
+
+ case TLSEXT_TYPE_signature_algorithms:
+ extname = "signature algorithms";
+ break;
+
+ case TLSEXT_TYPE_use_srtp:
+ extname = "use SRTP";
+ break;
+
+ case TLSEXT_TYPE_heartbeat:
+ extname = "heartbeat";
+ break;
+
+ case TLSEXT_TYPE_session_ticket:
+ extname = "session ticket";
+ break;
+
+ case TLSEXT_TYPE_renegotiate:
+ extname = "renegotiation info";
+ break;
+
+#ifdef TLSEXT_TYPE_opaque_prf_input
+ case TLSEXT_TYPE_opaque_prf_input:
+ extname = "opaque PRF input";
+ break;
+#endif
+#ifdef TLSEXT_TYPE_next_proto_neg
+ case TLSEXT_TYPE_next_proto_neg:
+ extname = "next protocol";
+ break;
+#endif
+
+ case TLSEXT_TYPE_padding:
+ extname = "TLS padding";
+ break;
+
+ default:
+ extname = "unknown";
+ break;
+
+ }
+
+ BIO_printf(bio, "TLS %s extension \"%s\" (id=%d), len=%d\n",
+ client_server ? "server": "client",
+ extname, type, len);
+ BIO_dump(bio, (char *)data, len);
+ (void)BIO_flush(bio);
+ }
+
+int MS_CALLBACK generate_cookie_callback(SSL *ssl, unsigned char *cookie, unsigned int *cookie_len)
+ {
+ unsigned char *buffer, result[EVP_MAX_MD_SIZE];
+ unsigned int length, resultlength;
+ union {
+ struct sockaddr sa;
+ struct sockaddr_in s4;
+#if OPENSSL_USE_IPV6
+ struct sockaddr_in6 s6;
+#endif
+ } peer;
+
+ /* Initialize a random secret */
+ if (!cookie_initialized)
+ {
+ if (!RAND_bytes(cookie_secret, COOKIE_SECRET_LENGTH))
+ {
+ BIO_printf(bio_err,"error setting random cookie secret\n");
+ return 0;
+ }
+ cookie_initialized = 1;
+ }
+
+ /* Read peer information */
+ (void)BIO_dgram_get_peer(SSL_get_rbio(ssl), &peer);
+
+ /* Create buffer with peer's address and port */
+ length = 0;
+ switch (peer.sa.sa_family)
+ {
+ case AF_INET:
+ length += sizeof(struct in_addr);
+ length += sizeof(peer.s4.sin_port);
+ break;
+#if OPENSSL_USE_IPV6
+ case AF_INET6:
+ length += sizeof(struct in6_addr);
+ length += sizeof(peer.s6.sin6_port);
+ break;
+#endif
+ default:
+ OPENSSL_assert(0);
+ break;
+ }
+ buffer = OPENSSL_malloc(length);
+
+ if (buffer == NULL)
+ {
+ BIO_printf(bio_err,"out of memory\n");
+ return 0;
+ }
+
+ switch (peer.sa.sa_family)
+ {
+ case AF_INET:
+ memcpy(buffer,
+ &peer.s4.sin_port,
+ sizeof(peer.s4.sin_port));
+ memcpy(buffer + sizeof(peer.s4.sin_port),
+ &peer.s4.sin_addr,
+ sizeof(struct in_addr));
+ break;
+#if OPENSSL_USE_IPV6
+ case AF_INET6:
+ memcpy(buffer,
+ &peer.s6.sin6_port,
+ sizeof(peer.s6.sin6_port));
+ memcpy(buffer + sizeof(peer.s6.sin6_port),
+ &peer.s6.sin6_addr,
+ sizeof(struct in6_addr));
+ break;
+#endif
+ default:
+ OPENSSL_assert(0);
+ break;
+ }
+
+ /* Calculate HMAC of buffer using the secret */
+ HMAC(EVP_sha1(), cookie_secret, COOKIE_SECRET_LENGTH,
+ buffer, length, result, &resultlength);
+ OPENSSL_free(buffer);
+
+ memcpy(cookie, result, resultlength);
+ *cookie_len = resultlength;
+
+ return 1;
+ }
+
+int MS_CALLBACK verify_cookie_callback(SSL *ssl, unsigned char *cookie, unsigned int cookie_len)
+ {
+ unsigned char *buffer, result[EVP_MAX_MD_SIZE];
+ unsigned int length, resultlength;
+ union {
+ struct sockaddr sa;
+ struct sockaddr_in s4;
+#if OPENSSL_USE_IPV6
+ struct sockaddr_in6 s6;
+#endif
+ } peer;
+
+ /* If secret isn't initialized yet, the cookie can't be valid */
+ if (!cookie_initialized)
+ return 0;
+
+ /* Read peer information */
+ (void)BIO_dgram_get_peer(SSL_get_rbio(ssl), &peer);
+
+ /* Create buffer with peer's address and port */
+ length = 0;
+ switch (peer.sa.sa_family)
+ {
+ case AF_INET:
+ length += sizeof(struct in_addr);
+ length += sizeof(peer.s4.sin_port);
+ break;
+#if OPENSSL_USE_IPV6
+ case AF_INET6:
+ length += sizeof(struct in6_addr);
+ length += sizeof(peer.s6.sin6_port);
+ break;
+#endif
+ default:
+ OPENSSL_assert(0);
+ break;
+ }
+ buffer = OPENSSL_malloc(length);
+
+ if (buffer == NULL)
+ {
+ BIO_printf(bio_err,"out of memory\n");
+ return 0;
+ }
+
+ switch (peer.sa.sa_family)
+ {
+ case AF_INET:
+ memcpy(buffer,
+ &peer.s4.sin_port,
+ sizeof(peer.s4.sin_port));
+ memcpy(buffer + sizeof(peer.s4.sin_port),
+ &peer.s4.sin_addr,
+ sizeof(struct in_addr));
+ break;
+#if OPENSSL_USE_IPV6
+ case AF_INET6:
+ memcpy(buffer,
+ &peer.s6.sin6_port,
+ sizeof(peer.s6.sin6_port));
+ memcpy(buffer + sizeof(peer.s6.sin6_port),
+ &peer.s6.sin6_addr,
+ sizeof(struct in6_addr));
+ break;
+#endif
+ default:
+ OPENSSL_assert(0);
+ break;
+ }
+
+ /* Calculate HMAC of buffer using the secret */
+ HMAC(EVP_sha1(), cookie_secret, COOKIE_SECRET_LENGTH,
+ buffer, length, result, &resultlength);
+ OPENSSL_free(buffer);
+
+ if (cookie_len == resultlength && memcmp(result, cookie, resultlength) == 0)
+ return 1;
+
+ return 0;
+ }
projects / cassiopeia.git / blobdiff