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/* $OpenBSD: s_server.c,v 1.38 2020/05/23 13:00:30 tb Exp $ */ /* 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). * */ /* ==================================================================== * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. * ECC cipher suite support in OpenSSL originally developed by * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project. */ /* ==================================================================== * Copyright 2005 Nokia. All rights reserved. * * The portions of the attached software ("Contribution") is developed by * Nokia Corporation and is licensed pursuant to the OpenSSL open source * license. * * The Contribution, originally written by Mika Kousa and Pasi Eronen of * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites * support (see RFC 4279) to OpenSSL. * * No patent licenses or other rights except those expressly stated in * the OpenSSL open source license shall be deemed granted or received * expressly, by implication, estoppel, or otherwise. * * No assurances are provided by Nokia that the Contribution does not * infringe the patent or other intellectual property rights of any third * party or that the license provides you with all the necessary rights * to make use of the Contribution. * * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR * OTHERWISE. */ /* Until the key-gen callbacks are modified to use newer prototypes, we allow * deprecated functions for openssl-internal code */ #ifdef OPENSSL_NO_DEPRECATED #undef OPENSSL_NO_DEPRECATED #endif #include <sys/types.h> #include <sys/socket.h> #include <assert.h> #include <ctype.h> #include <stdio.h> #include <stdlib.h> #include <limits.h> #include <string.h> #include <unistd.h> #include <poll.h> #include "apps.h" #include <openssl/bn.h> #include <openssl/err.h> #include <openssl/lhash.h> #include <openssl/ocsp.h> #include <openssl/pem.h> #include <openssl/ssl.h> #include <openssl/x509.h> #ifndef OPENSSL_NO_DH #include <openssl/dh.h> #endif #include <openssl/rsa.h> #include "s_apps.h" #include "timeouts.h" static int sv_body(char *hostname, int s, unsigned char *context); static int www_body(char *hostname, int s, unsigned char *context); static void close_accept_socket(void); static void sv_usage(void); static int init_ssl_connection(SSL * s); static void print_stats(BIO * bp, SSL_CTX * ctx); static int generate_session_id(const SSL * ssl, unsigned char *id, unsigned int *id_len); #ifndef OPENSSL_NO_DH static DH *load_dh_param(const char *dhfile); #endif static void s_server_init(void); /* static int load_CA(SSL_CTX *ctx, char *file);*/ #define BUFSIZZ 16*1024 static int bufsize = BUFSIZZ; static int accept_socket = -1; #define TEST_CERT "server.pem" #define TEST_CERT2 "server2.pem" static char *cipher = NULL; static int s_server_verify = SSL_VERIFY_NONE; static int s_server_session_id_context = 1; /* anything will do */ static const char *s_cert_file = TEST_CERT, *s_key_file = NULL; static const char *s_cert_file2 = TEST_CERT2, *s_key_file2 = NULL; static char *s_dcert_file = NULL, *s_dkey_file = NULL; static int s_nbio = 0; static int s_nbio_test = 0; int s_crlf = 0; static SSL_CTX *ctx = NULL; static SSL_CTX *ctx2 = NULL; static int www = 0; static BIO *bio_s_out = NULL; static int s_debug = 0; static int s_tlsextdebug = 0; static int s_tlsextstatus = 0; static int cert_status_cb(SSL * s, void *arg); static int s_msg = 0; static int s_quiet = 0; static char *keymatexportlabel = NULL; static int keymatexportlen = 20; static const char *session_id_prefix = NULL; static int enable_timeouts = 0; static long socket_mtu; #ifndef OPENSSL_NO_DTLS1 static int cert_chain = 0; #endif static void s_server_init(void) { accept_socket = -1; cipher = NULL; s_server_verify = SSL_VERIFY_NONE; s_dcert_file = NULL; s_dkey_file = NULL; s_cert_file = TEST_CERT; s_key_file = NULL; s_cert_file2 = TEST_CERT2; s_key_file2 = NULL; ctx2 = NULL; s_nbio = 0; s_nbio_test = 0; ctx = NULL; www = 0; bio_s_out = NULL; s_debug = 0; s_msg = 0; s_quiet = 0; } static void sv_usage(void) { BIO_printf(bio_err, "usage: s_server [args ...]\n"); BIO_printf(bio_err, "\n"); BIO_printf(bio_err, " -accept arg - port to accept on (default is %d)\n", PORT); BIO_printf(bio_err, " -context arg - set session ID context\n"); BIO_printf(bio_err, " -verify arg - turn on peer certificate verification\n"); BIO_printf(bio_err, " -Verify arg - turn on peer certificate verification, must have a cert.\n"); BIO_printf(bio_err, " -cert arg - certificate file to use\n"); BIO_printf(bio_err, " (default is %s)\n", TEST_CERT); BIO_printf(bio_err, " -crl_check - check the peer certificate has not been revoked by its CA.\n" \ " The CRL(s) are appended to the certificate file\n"); BIO_printf(bio_err, " -crl_check_all - check the peer certificate has not been revoked by its CA\n" \ " or any other CRL in the CA chain. CRL(s) are appended to the\n" \ " the certificate file.\n"); BIO_printf(bio_err, " -certform arg - certificate format (PEM or DER) PEM default\n"); BIO_printf(bio_err, " -key arg - Private Key file to use, in cert file if\n"); BIO_printf(bio_err, " not specified (default is %s)\n", TEST_CERT); BIO_printf(bio_err, " -keyform arg - key format (PEM or DER) PEM default\n"); BIO_printf(bio_err, " -pass arg - private key file pass phrase source\n"); BIO_printf(bio_err, " -dcert arg - second certificate file to use (usually for DSA)\n"); BIO_printf(bio_err, " -dcertform x - second certificate format (PEM or DER) PEM default\n"); BIO_printf(bio_err, " -dkey arg - second private key file to use (usually for DSA)\n"); BIO_printf(bio_err, " -dkeyform arg - second key format (PEM or DER) PEM default\n"); BIO_printf(bio_err, " -dpass arg - second private key file pass phrase source\n"); BIO_printf(bio_err, " -dhparam arg - DH parameter file to use, in cert file if not specified\n"); BIO_printf(bio_err, " or a default set of parameters is used\n"); BIO_printf(bio_err, " -nbio - Run with non-blocking IO\n"); BIO_printf(bio_err, " -nbio_test - test with the non-blocking test bio\n"); BIO_printf(bio_err, " -crlf - convert LF from terminal into CRLF\n"); BIO_printf(bio_err, " -debug - Print more output\n"); BIO_printf(bio_err, " -msg - Show protocol messages\n"); BIO_printf(bio_err, " -state - Print the SSL states\n"); BIO_printf(bio_err, " -CApath arg - PEM format directory of CA's\n"); BIO_printf(bio_err, " -CAfile arg - PEM format file of CA's\n"); BIO_printf(bio_err, " -nocert - Don't use any certificates (Anon-DH)\n"); BIO_printf(bio_err, " -cipher arg - play with 'openssl ciphers' to see what goes here\n"); BIO_printf(bio_err, " -serverpref - Use server's cipher preferences\n"); BIO_printf(bio_err, " -quiet - Inhibit printing of session and certificate information\n"); BIO_printf(bio_err, " -tls1_3 - Just talk TLSv1.3\n"); BIO_printf(bio_err, " -tls1_2 - Just talk TLSv1.2\n"); BIO_printf(bio_err, " -tls1_1 - Just talk TLSv1.1\n"); BIO_printf(bio_err, " -tls1 - Just talk TLSv1\n"); BIO_printf(bio_err, " -dtls1 - Just talk DTLSv1\n"); BIO_printf(bio_err, " -timeout - Enable timeouts\n"); BIO_printf(bio_err, " -mtu - Set link layer MTU\n"); BIO_printf(bio_err, " -chain - Read a certificate chain\n"); BIO_printf(bio_err, " -no_ssl2 - Just disable SSLv2\n"); BIO_printf(bio_err, " -no_ssl3 - Just disable SSLv3\n"); BIO_printf(bio_err, " -no_tls1 - Just disable TLSv1\n"); BIO_printf(bio_err, " -no_tls1_1 - Just disable TLSv1.1\n"); BIO_printf(bio_err, " -no_tls1_2 - Just disable TLSv1.2\n"); BIO_printf(bio_err, " -no_tls1_3 - Just disable TLSv1.3\n"); #ifndef OPENSSL_NO_DH BIO_printf(bio_err, " -no_dhe - Disable ephemeral DH\n"); #endif BIO_printf(bio_err, " -no_ecdhe - Disable ephemeral ECDH\n"); BIO_printf(bio_err, " -bugs - Turn on SSL bug compatibility\n"); BIO_printf(bio_err, " -www - Respond to a 'GET /' with a status page\n"); BIO_printf(bio_err, " -WWW - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n"); BIO_printf(bio_err, " -HTTP - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n"); BIO_printf(bio_err, " with the assumption it contains a complete HTTP response.\n"); BIO_printf(bio_err, " -id_prefix arg - Generate SSL/TLS session IDs prefixed by 'arg'\n"); BIO_printf(bio_err, " -servername host - servername for HostName TLS extension\n"); BIO_printf(bio_err, " -servername_fatal - on mismatch send fatal alert (default warning alert)\n"); BIO_printf(bio_err, " -cert2 arg - certificate file to use for servername\n"); BIO_printf(bio_err, " (default is %s)\n", TEST_CERT2); BIO_printf(bio_err, " -key2 arg - Private Key file to use for servername, in cert file if\n"); BIO_printf(bio_err, " not specified (default is %s)\n", TEST_CERT2); BIO_printf(bio_err, " -tlsextdebug - hex dump of all TLS extensions received\n"); BIO_printf(bio_err, " -no_ticket - disable use of RFC4507bis session tickets\n"); BIO_printf(bio_err, " -alpn arg - set the advertised protocols for the ALPN extension (comma-separated list)\n"); BIO_printf(bio_err, " -groups arg - specify EC groups (colon-separated list)\n"); #ifndef OPENSSL_NO_SRTP BIO_printf(bio_err, " -use_srtp profiles - Offer SRTP key management with a colon-separated profile list\n"); #endif BIO_printf(bio_err, " -keymatexport label - Export keying material using label\n"); BIO_printf(bio_err, " -keymatexportlen len - Export len bytes of keying material (default 20)\n"); } static int local_argc = 0; static char **local_argv; /* This is a context that we pass to callbacks */ typedef struct tlsextctx_st { char *servername; BIO *biodebug; int extension_error; } tlsextctx; static int ssl_servername_cb(SSL * s, int *ad, void *arg) { tlsextctx *p = (tlsextctx *) arg; const char *servername = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name); if (servername && p->biodebug) BIO_printf(p->biodebug, "Hostname in TLS extension: \"%s\"\n", servername); if (!p->servername) return SSL_TLSEXT_ERR_NOACK; if (servername) { if (strcmp(servername, p->servername)) return p->extension_error; if (ctx2) { BIO_printf(p->biodebug, "Switching server context.\n"); SSL_set_SSL_CTX(s, ctx2); } } return SSL_TLSEXT_ERR_OK; } /* Structure passed to cert status callback */ typedef struct tlsextstatusctx_st { /* Default responder to use */ char *host, *path, *port; int use_ssl; int timeout; BIO *err; int verbose; } tlsextstatusctx; static tlsextstatusctx tlscstatp = {NULL, NULL, NULL, 0, -1, NULL, 0}; /* Certificate Status callback. This is called when a client includes a * certificate status request extension. * * This is a simplified version. It examines certificates each time and * makes one OCSP responder query for each request. * * A full version would store details such as the OCSP certificate IDs and * minimise the number of OCSP responses by caching them until they were * considered "expired". */ static int cert_status_cb(SSL * s, void *arg) { tlsextstatusctx *srctx = arg; BIO *err = srctx->err; char *host = NULL, *port = NULL, *path = NULL; int use_ssl; unsigned char *rspder = NULL; int rspderlen; STACK_OF(OPENSSL_STRING) * aia = NULL; X509 *x = NULL; X509_STORE_CTX inctx; X509_OBJECT obj; OCSP_REQUEST *req = NULL; OCSP_RESPONSE *resp = NULL; OCSP_CERTID *id = NULL; STACK_OF(X509_EXTENSION) * exts; int ret = SSL_TLSEXT_ERR_NOACK; int i; if (srctx->verbose) BIO_puts(err, "cert_status: callback called\n"); /* Build up OCSP query from server certificate */ x = SSL_get_certificate(s); aia = X509_get1_ocsp(x); if (aia) { if (!OCSP_parse_url(sk_OPENSSL_STRING_value(aia, 0), &host, &port, &path, &use_ssl)) { BIO_puts(err, "cert_status: can't parse AIA URL\n"); goto err; } if (srctx->verbose) BIO_printf(err, "cert_status: AIA URL: %s\n", sk_OPENSSL_STRING_value(aia, 0)); } else { if (!srctx->host) { BIO_puts(srctx->err, "cert_status: no AIA and no default responder URL\n"); goto done; } host = srctx->host; path = srctx->path; port = srctx->port; use_ssl = srctx->use_ssl; } if (!X509_STORE_CTX_init(&inctx, SSL_CTX_get_cert_store(SSL_get_SSL_CTX(s)), NULL, NULL)) goto err; if (X509_STORE_get_by_subject(&inctx, X509_LU_X509, X509_get_issuer_name(x), &obj) <= 0) { BIO_puts(err, "cert_status: Can't retrieve issuer certificate.\n"); X509_STORE_CTX_cleanup(&inctx); goto done; } req = OCSP_REQUEST_new(); if (!req) goto err; id = OCSP_cert_to_id(NULL, x, obj.data.x509); X509_free(obj.data.x509); X509_STORE_CTX_cleanup(&inctx); if (!id) goto err; if (!OCSP_request_add0_id(req, id)) goto err; id = NULL; /* Add any extensions to the request */ SSL_get_tlsext_status_exts(s, &exts); for (i = 0; i < sk_X509_EXTENSION_num(exts); i++) { X509_EXTENSION *ext = sk_X509_EXTENSION_value(exts, i); if (!OCSP_REQUEST_add_ext(req, ext, -1)) goto err; } resp = process_responder(err, req, host, path, port, use_ssl, NULL, srctx->timeout); if (!resp) { BIO_puts(err, "cert_status: error querying responder\n"); goto done; } rspderlen = i2d_OCSP_RESPONSE(resp, &rspder); if (rspderlen <= 0) goto err; SSL_set_tlsext_status_ocsp_resp(s, rspder, rspderlen); if (srctx->verbose) { BIO_puts(err, "cert_status: ocsp response sent:\n"); OCSP_RESPONSE_print(err, resp, 2); } ret = SSL_TLSEXT_ERR_OK; done: if (ret != SSL_TLSEXT_ERR_OK) ERR_print_errors(err); if (aia) { free(host); free(path); free(port); X509_email_free(aia); } if (id) OCSP_CERTID_free(id); if (req) OCSP_REQUEST_free(req); if (resp) OCSP_RESPONSE_free(resp); return ret; err: ret = SSL_TLSEXT_ERR_ALERT_FATAL; goto done; } /* This the context that we pass to alpn_cb */ typedef struct tlsextalpnctx_st { unsigned char *data; unsigned short len; } tlsextalpnctx; static int alpn_cb(SSL *s, const unsigned char **out, unsigned char *outlen, const unsigned char *in, unsigned int inlen, void *arg) { tlsextalpnctx *alpn_ctx = arg; if (!s_quiet) { /* We can assume that in is syntactically valid. */ unsigned i; BIO_printf(bio_s_out, "ALPN protocols advertised by the client: "); for (i = 0; i < inlen; ) { if (i) BIO_write(bio_s_out, ", ", 2); BIO_write(bio_s_out, &in[i + 1], in[i]); i += in[i] + 1; } BIO_write(bio_s_out, "\n", 1); } if (SSL_select_next_proto((unsigned char**)out, outlen, alpn_ctx->data, alpn_ctx->len, in, inlen) != OPENSSL_NPN_NEGOTIATED) return (SSL_TLSEXT_ERR_NOACK); if (!s_quiet) { BIO_printf(bio_s_out, "ALPN protocols selected: "); BIO_write(bio_s_out, *out, *outlen); BIO_write(bio_s_out, "\n", 1); } return (SSL_TLSEXT_ERR_OK); } #ifndef OPENSSL_NO_SRTP static char *srtp_profiles = NULL; #endif int s_server_main(int argc, char *argv[]) { X509_VERIFY_PARAM *vpm = NULL; int badarg = 0; short port = PORT; char *CApath = NULL, *CAfile = NULL; unsigned char *context = NULL; char *dhfile = NULL; char *named_curve = NULL; int badop = 0, bugs = 0; int ret = 1; int off = 0; int no_dhe = 0, no_ecdhe = 0, nocert = 0; int state = 0; const SSL_METHOD *meth = NULL; int socket_type = SOCK_STREAM; int s_cert_format = FORMAT_PEM, s_key_format = FORMAT_PEM; char *passarg = NULL, *pass = NULL; char *dpassarg = NULL, *dpass = NULL; int s_dcert_format = FORMAT_PEM, s_dkey_format = FORMAT_PEM; X509 *s_cert = NULL, *s_dcert = NULL; EVP_PKEY *s_key = NULL, *s_dkey = NULL; int no_cache = 0; const char *errstr = NULL; EVP_PKEY *s_key2 = NULL; X509 *s_cert2 = NULL; tlsextctx tlsextcbp = {NULL, NULL, SSL_TLSEXT_ERR_ALERT_WARNING}; const char *alpn_in = NULL; const char *groups_in = NULL; tlsextalpnctx alpn_ctx = { NULL, 0 }; uint16_t min_version = 0, max_version = 0; if (single_execution) { if (pledge("stdio rpath inet dns tty", NULL) == -1) { perror("pledge"); exit(1); } } meth = TLS_server_method(); local_argc = argc; local_argv = argv; s_server_init(); verify_depth = 0; s_nbio = 0; s_nbio_test = 0; argc--; argv++; while (argc >= 1) { if ((strcmp(*argv, "-port") == 0) || (strcmp(*argv, "-accept") == 0)) { if (--argc < 1) goto bad; if (!extract_port(*(++argv), &port)) goto bad; } else if (strcmp(*argv, "-verify") == 0) { s_server_verify = SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE; if (--argc < 1) goto bad; verify_depth = strtonum(*(++argv), 0, INT_MAX, &errstr); if (errstr) goto bad; BIO_printf(bio_err, "verify depth is %d\n", verify_depth); } else if (strcmp(*argv, "-Verify") == 0) { s_server_verify = SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT | SSL_VERIFY_CLIENT_ONCE; if (--argc < 1) goto bad; verify_depth = strtonum(*(++argv), 0, INT_MAX, &errstr); if (errstr) goto bad; BIO_printf(bio_err, "verify depth is %d, must return a certificate\n", verify_depth); } else if (strcmp(*argv, "-context") == 0) { if (--argc < 1) goto bad; context = (unsigned char *) *(++argv); } else if (strcmp(*argv, "-cert") == 0) { if (--argc < 1) goto bad; s_cert_file = *(++argv); } else if (strcmp(*argv, "-certform") == 0) { if (--argc < 1) goto bad; s_cert_format = str2fmt(*(++argv)); } else if (strcmp(*argv, "-key") == 0) { if (--argc < 1) goto bad; s_key_file = *(++argv); } else if (strcmp(*argv, "-keyform") == 0) { if (--argc < 1) goto bad; s_key_format = str2fmt(*(++argv)); } else if (strcmp(*argv, "-pass") == 0) { if (--argc < 1) goto bad; passarg = *(++argv); } else if (strcmp(*argv, "-dhparam") == 0) { if (--argc < 1) goto bad; dhfile = *(++argv); } else if (strcmp(*argv, "-named_curve") == 0) { if (--argc < 1) goto bad; named_curve = *(++argv); } else if (strcmp(*argv, "-dcertform") == 0) { if (--argc < 1) goto bad; s_dcert_format = str2fmt(*(++argv)); } else if (strcmp(*argv, "-dcert") == 0) { if (--argc < 1) goto bad; s_dcert_file = *(++argv); } else if (strcmp(*argv, "-dkeyform") == 0) { if (--argc < 1) goto bad; s_dkey_format = str2fmt(*(++argv)); } else if (strcmp(*argv, "-dpass") == 0) { if (--argc < 1) goto bad; dpassarg = *(++argv); } else if (strcmp(*argv, "-dkey") == 0) { if (--argc < 1) goto bad; s_dkey_file = *(++argv); } else if (strcmp(*argv, "-nocert") == 0) { nocert = 1; } else if (strcmp(*argv, "-CApath") == 0) { if (--argc < 1) goto bad; CApath = *(++argv); } else if (strcmp(*argv, "-no_cache") == 0) no_cache = 1; else if (args_verify(&argv, &argc, &badarg, bio_err, &vpm)) { if (badarg) goto bad; continue; } else if (strcmp(*argv, "-verify_return_error") == 0) verify_return_error = 1; else if (strcmp(*argv, "-serverpref") == 0) { off |= SSL_OP_CIPHER_SERVER_PREFERENCE; } else if (strcmp(*argv, "-legacy_renegotiation") == 0) ; /* no-op */ else if (strcmp(*argv, "-cipher") == 0) { if (--argc < 1) goto bad; cipher = *(++argv); } else if (strcmp(*argv, "-CAfile") == 0) { if (--argc < 1) goto bad; CAfile = *(++argv); } else if (strcmp(*argv, "-nbio") == 0) { s_nbio = 1; } else if (strcmp(*argv, "-nbio_test") == 0) { s_nbio = 1; s_nbio_test = 1; } else if (strcmp(*argv, "-debug") == 0) { s_debug = 1; } else if (strcmp(*argv, "-tlsextdebug") == 0) s_tlsextdebug = 1; else if (strcmp(*argv, "-status") == 0) s_tlsextstatus = 1; else if (strcmp(*argv, "-status_verbose") == 0) { s_tlsextstatus = 1; tlscstatp.verbose = 1; } else if (!strcmp(*argv, "-status_timeout")) { s_tlsextstatus = 1; if (--argc < 1) goto bad; tlscstatp.timeout = strtonum(*(++argv), 0, INT_MAX, &errstr); if (errstr) goto bad; } else if (!strcmp(*argv, "-status_url")) { s_tlsextstatus = 1; if (--argc < 1) goto bad; if (!OCSP_parse_url(*(++argv), &tlscstatp.host, &tlscstatp.port, &tlscstatp.path, &tlscstatp.use_ssl)) { BIO_printf(bio_err, "Error parsing URL\n"); goto bad; } } else if (strcmp(*argv, "-msg") == 0) { s_msg = 1; } else if (strcmp(*argv, "-state") == 0) { state = 1; } else if (strcmp(*argv, "-crlf") == 0) { s_crlf = 1; } else if (strcmp(*argv, "-quiet") == 0) { s_quiet = 1; } else if (strcmp(*argv, "-bugs") == 0) { bugs = 1; } else if (strcmp(*argv, "-no_tmp_rsa") == 0) { /* No-op. */ } else if (strcmp(*argv, "-no_dhe") == 0) { no_dhe = 1; } else if (strcmp(*argv, "-no_ecdhe") == 0) { no_ecdhe = 1; } else if (strcmp(*argv, "-www") == 0) { www = 1; } else if (strcmp(*argv, "-WWW") == 0) { www = 2; } else if (strcmp(*argv, "-HTTP") == 0) { www = 3; } else if (strcmp(*argv, "-no_ssl2") == 0) { off |= SSL_OP_NO_SSLv2; } else if (strcmp(*argv, "-no_ssl3") == 0) { off |= SSL_OP_NO_SSLv3; } else if (strcmp(*argv, "-no_tls1") == 0) { off |= SSL_OP_NO_TLSv1; } else if (strcmp(*argv, "-no_tls1_1") == 0) { off |= SSL_OP_NO_TLSv1_1; } else if (strcmp(*argv, "-no_tls1_2") == 0) { off |= SSL_OP_NO_TLSv1_2; } else if (strcmp(*argv, "-no_tls1_3") == 0) { off |= SSL_OP_NO_TLSv1_3; } else if (strcmp(*argv, "-no_comp") == 0) { off |= SSL_OP_NO_COMPRESSION; } else if (strcmp(*argv, "-no_ticket") == 0) { off |= SSL_OP_NO_TICKET; } else if (strcmp(*argv, "-tls1") == 0) { min_version = TLS1_VERSION; max_version = TLS1_VERSION; } else if (strcmp(*argv, "-tls1_1") == 0) { min_version = TLS1_1_VERSION; max_version = TLS1_1_VERSION; } else if (strcmp(*argv, "-tls1_2") == 0) { min_version = TLS1_2_VERSION; max_version = TLS1_2_VERSION; } else if (strcmp(*argv, "-tls1_3") == 0) { min_version = TLS1_3_VERSION; max_version = TLS1_3_VERSION; } #ifndef OPENSSL_NO_DTLS1 else if (strcmp(*argv, "-dtls1") == 0) { meth = DTLS_server_method(); socket_type = SOCK_DGRAM; } else if (strcmp(*argv, "-timeout") == 0) enable_timeouts = 1; else if (strcmp(*argv, "-mtu") == 0) { if (--argc < 1) goto bad; socket_mtu = strtonum(*(++argv), 0, LONG_MAX, &errstr); if (errstr) goto bad; } else if (strcmp(*argv, "-chain") == 0) cert_chain = 1; #endif else if (strcmp(*argv, "-id_prefix") == 0) { if (--argc < 1) goto bad; session_id_prefix = *(++argv); } else if (strcmp(*argv, "-servername") == 0) { if (--argc < 1) goto bad; tlsextcbp.servername = *(++argv); } else if (strcmp(*argv, "-servername_fatal") == 0) { tlsextcbp.extension_error = SSL_TLSEXT_ERR_ALERT_FATAL; } else if (strcmp(*argv, "-cert2") == 0) { if (--argc < 1) goto bad; s_cert_file2 = *(++argv); } else if (strcmp(*argv, "-key2") == 0) { if (--argc < 1) goto bad; s_key_file2 = *(++argv); } else if (strcmp(*argv, "-nextprotoneg") == 0) { /* Ignored. */ if (--argc < 1) goto bad; ++argv; } else if (strcmp(*argv,"-alpn") == 0) { if (--argc < 1) goto bad; alpn_in = *(++argv); } else if (strcmp(*argv, "-groups") == 0) { if (--argc < 1) goto bad; groups_in = *(++argv); } #ifndef OPENSSL_NO_SRTP else if (strcmp(*argv, "-use_srtp") == 0) { if (--argc < 1) goto bad; srtp_profiles = *(++argv); } #endif else if (strcmp(*argv, "-keymatexport") == 0) { if (--argc < 1) goto bad; keymatexportlabel = *(++argv); } else if (strcmp(*argv, "-keymatexportlen") == 0) { if (--argc < 1) goto bad; keymatexportlen = strtonum(*(++argv), 1, INT_MAX, &errstr); if (errstr) goto bad; } else { BIO_printf(bio_err, "unknown option %s\n", *argv); badop = 1; break; } argc--; argv++; } if (badop) { bad: if (errstr) BIO_printf(bio_err, "invalid argument %s: %s\n", *argv, errstr); else sv_usage(); goto end; } if (!app_passwd(bio_err, passarg, dpassarg, &pass, &dpass)) { BIO_printf(bio_err, "Error getting password\n"); goto end; } if (s_key_file == NULL) s_key_file = s_cert_file; if (s_key_file2 == NULL) s_key_file2 = s_cert_file2; if (nocert == 0) { s_key = load_key(bio_err, s_key_file, s_key_format, 0, pass, "server certificate private key file"); if (!s_key) { ERR_print_errors(bio_err); goto end; } s_cert = load_cert(bio_err, s_cert_file, s_cert_format, NULL, "server certificate file"); if (!s_cert) { ERR_print_errors(bio_err); goto end; } if (tlsextcbp.servername) { s_key2 = load_key(bio_err, s_key_file2, s_key_format, 0, pass, "second server certificate private key file"); if (!s_key2) { ERR_print_errors(bio_err); goto end; } s_cert2 = load_cert(bio_err, s_cert_file2, s_cert_format, NULL, "second server certificate file"); if (!s_cert2) { ERR_print_errors(bio_err); goto end; } } } alpn_ctx.data = NULL; if (alpn_in) { unsigned short len; alpn_ctx.data = next_protos_parse(&len, alpn_in); if (alpn_ctx.data == NULL) goto end; alpn_ctx.len = len; } if (s_dcert_file) { if (s_dkey_file == NULL) s_dkey_file = s_dcert_file; s_dkey = load_key(bio_err, s_dkey_file, s_dkey_format, 0, dpass, "second certificate private key file"); if (!s_dkey) { ERR_print_errors(bio_err); goto end; } s_dcert = load_cert(bio_err, s_dcert_file, s_dcert_format, NULL, "second server certificate file"); if (!s_dcert) { ERR_print_errors(bio_err); goto end; } } if (bio_s_out == NULL) { if (s_quiet && !s_debug && !s_msg) { bio_s_out = BIO_new(BIO_s_null()); } else { if (bio_s_out == NULL) bio_s_out = BIO_new_fp(stdout, BIO_NOCLOSE); } } if (nocert) { s_cert_file = NULL; s_key_file = NULL; s_dcert_file = NULL; s_dkey_file = NULL; s_cert_file2 = NULL; s_key_file2 = NULL; } ctx = SSL_CTX_new(meth); if (ctx == NULL) { ERR_print_errors(bio_err); goto end; } SSL_CTX_clear_mode(ctx, SSL_MODE_AUTO_RETRY); if (!SSL_CTX_set_min_proto_version(ctx, min_version)) goto end; if (!SSL_CTX_set_max_proto_version(ctx, max_version)) goto end; if (session_id_prefix) { if (strlen(session_id_prefix) >= 32) BIO_printf(bio_err, "warning: id_prefix is too long, only one new session will be possible\n"); else if (strlen(session_id_prefix) >= 16) BIO_printf(bio_err, "warning: id_prefix is too long if you use SSLv2\n"); if (!SSL_CTX_set_generate_session_id(ctx, generate_session_id)) { BIO_printf(bio_err, "error setting 'id_prefix'\n"); ERR_print_errors(bio_err); goto end; } BIO_printf(bio_err, "id_prefix '%s' set.\n", session_id_prefix); } SSL_CTX_set_quiet_shutdown(ctx, 1); if (bugs) SSL_CTX_set_options(ctx, SSL_OP_ALL); SSL_CTX_set_options(ctx, off); /* * DTLS: partial reads end up discarding unread UDP bytes :-( Setting * read ahead solves this problem. */ if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1); if (state) SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback); if (no_cache) SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_OFF); else SSL_CTX_sess_set_cache_size(ctx, 128); #ifndef OPENSSL_NO_SRTP if (srtp_profiles != NULL) SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles); #endif if ((!SSL_CTX_load_verify_locations(ctx, CAfile, CApath)) || (!SSL_CTX_set_default_verify_paths(ctx))) { /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */ ERR_print_errors(bio_err); /* goto end; */ } if (vpm) SSL_CTX_set1_param(ctx, vpm); if (s_cert2) { ctx2 = SSL_CTX_new(meth); if (ctx2 == NULL) { ERR_print_errors(bio_err); goto end; } if (!SSL_CTX_set_min_proto_version(ctx2, min_version)) goto end; if (!SSL_CTX_set_max_proto_version(ctx2, max_version)) goto end; SSL_CTX_clear_mode(ctx2, SSL_MODE_AUTO_RETRY); } if (ctx2) { BIO_printf(bio_s_out, "Setting secondary ctx parameters\n"); if (session_id_prefix) { if (strlen(session_id_prefix) >= 32) BIO_printf(bio_err, "warning: id_prefix is too long, only one new session will be possible\n"); else if (strlen(session_id_prefix) >= 16) BIO_printf(bio_err, "warning: id_prefix is too long if you use SSLv2\n"); if (!SSL_CTX_set_generate_session_id(ctx2, generate_session_id)) { BIO_printf(bio_err, "error setting 'id_prefix'\n"); ERR_print_errors(bio_err); goto end; } BIO_printf(bio_err, "id_prefix '%s' set.\n", session_id_prefix); } SSL_CTX_set_quiet_shutdown(ctx2, 1); if (bugs) SSL_CTX_set_options(ctx2, SSL_OP_ALL); SSL_CTX_set_options(ctx2, off); /* * DTLS: partial reads end up discarding unread UDP bytes :-( * Setting read ahead solves this problem. */ if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx2, 1); if (state) SSL_CTX_set_info_callback(ctx2, apps_ssl_info_callback); if (no_cache) SSL_CTX_set_session_cache_mode(ctx2, SSL_SESS_CACHE_OFF); else SSL_CTX_sess_set_cache_size(ctx2, 128); if ((!SSL_CTX_load_verify_locations(ctx2, CAfile, CApath)) || (!SSL_CTX_set_default_verify_paths(ctx2))) { ERR_print_errors(bio_err); } if (vpm) SSL_CTX_set1_param(ctx2, vpm); } if (alpn_ctx.data) SSL_CTX_set_alpn_select_cb(ctx, alpn_cb, &alpn_ctx); if (groups_in != NULL) { if (SSL_CTX_set1_groups_list(ctx, groups_in) != 1) { BIO_printf(bio_err, "Failed to set groups '%s'\n", groups_in); goto end; } } #ifndef OPENSSL_NO_DH if (!no_dhe) { DH *dh = NULL; if (dhfile) dh = load_dh_param(dhfile); else if (s_cert_file) dh = load_dh_param(s_cert_file); if (dh != NULL) BIO_printf(bio_s_out, "Setting temp DH parameters\n"); else BIO_printf(bio_s_out, "Using auto DH parameters\n"); (void) BIO_flush(bio_s_out); if (dh == NULL) SSL_CTX_set_dh_auto(ctx, 1); else if (!SSL_CTX_set_tmp_dh(ctx, dh)) { BIO_printf(bio_err, "Error setting temp DH parameters\n"); ERR_print_errors(bio_err); DH_free(dh); goto end; } if (ctx2) { if (!dhfile) { DH *dh2 = NULL; if (s_cert_file2 != NULL) dh2 = load_dh_param(s_cert_file2); if (dh2 != NULL) { BIO_printf(bio_s_out, "Setting temp DH parameters\n"); (void) BIO_flush(bio_s_out); DH_free(dh); dh = dh2; } } if (dh == NULL) SSL_CTX_set_dh_auto(ctx2, 1); else if (!SSL_CTX_set_tmp_dh(ctx2, dh)) { BIO_printf(bio_err, "Error setting temp DH parameters\n"); ERR_print_errors(bio_err); DH_free(dh); goto end; } } DH_free(dh); } #endif if (!no_ecdhe && named_curve != NULL) { EC_KEY *ecdh = NULL; int nid; if ((nid = OBJ_sn2nid(named_curve)) == 0) { BIO_printf(bio_err, "unknown curve name (%s)\n", named_curve); goto end; } if ((ecdh = EC_KEY_new_by_curve_name(nid)) == NULL) { BIO_printf(bio_err, "unable to create curve (%s)\n", named_curve); goto end; } BIO_printf(bio_s_out, "Setting temp ECDH parameters\n"); (void) BIO_flush(bio_s_out); SSL_CTX_set_tmp_ecdh(ctx, ecdh); if (ctx2) SSL_CTX_set_tmp_ecdh(ctx2, ecdh); EC_KEY_free(ecdh); } if (!set_cert_key_stuff(ctx, s_cert, s_key)) goto end; if (ctx2 && !set_cert_key_stuff(ctx2, s_cert2, s_key2)) goto end; if (s_dcert != NULL) { if (!set_cert_key_stuff(ctx, s_dcert, s_dkey)) goto end; } if (cipher != NULL) { if (!SSL_CTX_set_cipher_list(ctx, cipher)) { BIO_printf(bio_err, "error setting cipher list\n"); ERR_print_errors(bio_err); goto end; } if (ctx2 && !SSL_CTX_set_cipher_list(ctx2, cipher)) { BIO_printf(bio_err, "error setting cipher list\n"); ERR_print_errors(bio_err); goto end; } } SSL_CTX_set_verify(ctx, s_server_verify, verify_callback); SSL_CTX_set_session_id_context(ctx, (void *) &s_server_session_id_context, sizeof s_server_session_id_context); /* Set DTLS cookie generation and verification callbacks */ SSL_CTX_set_cookie_generate_cb(ctx, generate_cookie_callback); SSL_CTX_set_cookie_verify_cb(ctx, verify_cookie_callback); if (ctx2) { SSL_CTX_set_verify(ctx2, s_server_verify, verify_callback); SSL_CTX_set_session_id_context(ctx2, (void *) &s_server_session_id_context, sizeof s_server_session_id_context); tlsextcbp.biodebug = bio_s_out; SSL_CTX_set_tlsext_servername_callback(ctx2, ssl_servername_cb); SSL_CTX_set_tlsext_servername_arg(ctx2, &tlsextcbp); SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb); SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp); } if (CAfile != NULL) { SSL_CTX_set_client_CA_list(ctx, SSL_load_client_CA_file(CAfile)); if (ctx2) SSL_CTX_set_client_CA_list(ctx2, SSL_load_client_CA_file(CAfile)); } BIO_printf(bio_s_out, "ACCEPT\n"); (void) BIO_flush(bio_s_out); if (www) do_server(port, socket_type, &accept_socket, www_body, context); else do_server(port, socket_type, &accept_socket, sv_body, context); print_stats(bio_s_out, ctx); ret = 0; end: SSL_CTX_free(ctx); X509_free(s_cert); X509_free(s_dcert); EVP_PKEY_free(s_key); EVP_PKEY_free(s_dkey); free(pass); free(dpass); X509_VERIFY_PARAM_free(vpm); free(tlscstatp.host); free(tlscstatp.port); free(tlscstatp.path); SSL_CTX_free(ctx2); X509_free(s_cert2); EVP_PKEY_free(s_key2); free(alpn_ctx.data); if (bio_s_out != NULL) { BIO_free(bio_s_out); bio_s_out = NULL; } return (ret); } static void print_stats(BIO * bio, SSL_CTX * ssl_ctx) { BIO_printf(bio, "%4ld items in the session cache\n", SSL_CTX_sess_number(ssl_ctx)); BIO_printf(bio, "%4ld client connects (SSL_connect())\n", SSL_CTX_sess_connect(ssl_ctx)); BIO_printf(bio, "%4ld client renegotiates (SSL_connect())\n", SSL_CTX_sess_connect_renegotiate(ssl_ctx)); BIO_printf(bio, "%4ld client connects that finished\n", SSL_CTX_sess_connect_good(ssl_ctx)); BIO_printf(bio, "%4ld server accepts (SSL_accept())\n", SSL_CTX_sess_accept(ssl_ctx)); BIO_printf(bio, "%4ld server renegotiates (SSL_accept())\n", SSL_CTX_sess_accept_renegotiate(ssl_ctx)); BIO_printf(bio, "%4ld server accepts that finished\n", SSL_CTX_sess_accept_good(ssl_ctx)); BIO_printf(bio, "%4ld session cache hits\n", SSL_CTX_sess_hits(ssl_ctx)); BIO_printf(bio, "%4ld session cache misses\n", SSL_CTX_sess_misses(ssl_ctx)); BIO_printf(bio, "%4ld session cache timeouts\n", SSL_CTX_sess_timeouts(ssl_ctx)); BIO_printf(bio, "%4ld callback cache hits\n", SSL_CTX_sess_cb_hits(ssl_ctx)); BIO_printf(bio, "%4ld cache full overflows (%ld allowed)\n", SSL_CTX_sess_cache_full(ssl_ctx), SSL_CTX_sess_get_cache_size(ssl_ctx)); } static int sv_body(char *hostname, int s, unsigned char *context) { char *buf = NULL; int ret = 1; int k, i; unsigned long l; SSL *con = NULL; BIO *sbio; struct timeval timeout; if ((buf = malloc(bufsize)) == NULL) { BIO_printf(bio_err, "out of memory\n"); goto err; } if (s_nbio) { if (!s_quiet) BIO_printf(bio_err, "turning on non blocking io\n"); if (!BIO_socket_nbio(s, 1)) ERR_print_errors(bio_err); } if (con == NULL) { con = SSL_new(ctx); if (s_tlsextdebug) { SSL_set_tlsext_debug_callback(con, tlsext_cb); SSL_set_tlsext_debug_arg(con, bio_s_out); } if (s_tlsextstatus) { SSL_CTX_set_tlsext_status_cb(ctx, cert_status_cb); tlscstatp.err = bio_err; SSL_CTX_set_tlsext_status_arg(ctx, &tlscstatp); } if (context) SSL_set_session_id_context(con, context, strlen((char *) context)); } SSL_clear(con); if (SSL_version(con) == DTLS1_VERSION) { sbio = BIO_new_dgram(s, BIO_NOCLOSE); if (enable_timeouts) { timeout.tv_sec = 0; timeout.tv_usec = DGRAM_RCV_TIMEOUT; BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout); timeout.tv_sec = 0; timeout.tv_usec = DGRAM_SND_TIMEOUT; BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout); } if (socket_mtu > 28) { SSL_set_options(con, SSL_OP_NO_QUERY_MTU); SSL_set_mtu(con, socket_mtu - 28); } else /* want to do MTU discovery */ BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL); /* turn on cookie exchange */ SSL_set_options(con, SSL_OP_COOKIE_EXCHANGE); } else sbio = BIO_new_socket(s, BIO_NOCLOSE); if (s_nbio_test) { BIO *test; test = BIO_new(BIO_f_nbio_test()); sbio = BIO_push(test, sbio); } SSL_set_bio(con, sbio, sbio); SSL_set_accept_state(con); /* SSL_set_fd(con,s); */ if (s_debug) { SSL_set_debug(con, 1); BIO_set_callback(SSL_get_rbio(con), bio_dump_callback); BIO_set_callback_arg(SSL_get_rbio(con), (char *) bio_s_out); } if (s_msg) { SSL_set_msg_callback(con, msg_cb); SSL_set_msg_callback_arg(con, bio_s_out); } if (s_tlsextdebug) { SSL_set_tlsext_debug_callback(con, tlsext_cb); SSL_set_tlsext_debug_arg(con, bio_s_out); } for (;;) { int read_from_terminal; int read_from_sslcon; struct pollfd pfd[2]; int ptimeout; read_from_terminal = 0; read_from_sslcon = SSL_pending(con); if (!read_from_sslcon) { pfd[0].fd = fileno(stdin); pfd[0].events = POLLIN; pfd[1].fd = s; pfd[1].events = POLLIN; if ((SSL_version(con) == DTLS1_VERSION) && DTLSv1_get_timeout(con, &timeout)) ptimeout = timeout.tv_sec * 1000 + timeout.tv_usec / 1000; else ptimeout = -1; i = poll(pfd, 2, ptimeout); if ((SSL_version(con) == DTLS1_VERSION) && DTLSv1_handle_timeout(con) > 0) { BIO_printf(bio_err, "TIMEOUT occured\n"); } if (i <= 0) continue; if (pfd[0].revents) { if ((pfd[0].revents & (POLLERR|POLLNVAL))) continue; read_from_terminal = 1; } if (pfd[1].revents) { if ((pfd[1].revents & (POLLERR|POLLNVAL))) continue; read_from_sslcon = 1; } } if (read_from_terminal) { if (s_crlf) { int j, lf_num; i = read(fileno(stdin), buf, bufsize / 2); lf_num = 0; /* both loops are skipped when i <= 0 */ for (j = 0; j < i; j++) if (buf[j] == '\n') lf_num++; for (j = i - 1; j >= 0; j--) { buf[j + lf_num] = buf[j]; if (buf[j] == '\n') { lf_num--; i++; buf[j + lf_num] = '\r'; } } assert(lf_num == 0); } else i = read(fileno(stdin), buf, bufsize); if (!s_quiet) { if ((i <= 0) || (buf[0] == 'Q')) { BIO_printf(bio_s_out, "DONE\n"); shutdown(s, SHUT_RD); close(s); close_accept_socket(); ret = -11; goto err; } if ((i <= 0) || (buf[0] == 'q')) { BIO_printf(bio_s_out, "DONE\n"); if (SSL_version(con) != DTLS1_VERSION) { shutdown(s, SHUT_RD); close(s); } /* * close_accept_socket(); ret= -11; */ goto err; } if ((buf[0] == 'r') && ((buf[1] == '\n') || (buf[1] == '\r'))) { SSL_renegotiate(con); i = SSL_do_handshake(con); printf("SSL_do_handshake -> %d\n", i); i = 0; /* 13; */ continue; /* * RE-NEGOTIATE\n"); */ } if ((buf[0] == 'R') && ((buf[1] == '\n') || (buf[1] == '\r'))) { SSL_set_verify(con, SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE, NULL); SSL_renegotiate(con); i = SSL_do_handshake(con); printf("SSL_do_handshake -> %d\n", i); i = 0; /* 13; */ continue; /* * RE-NEGOTIATE asking for client * cert\n"); */ } if (buf[0] == 'P') { static const char *str = "Lets print some clear text\n"; BIO_write(SSL_get_wbio(con), str, strlen(str)); } if (buf[0] == 'S') { print_stats(bio_s_out, SSL_get_SSL_CTX(con)); } } l = k = 0; for (;;) { /* should do a select for the write */ #ifdef RENEG { static count = 0; if (++count == 100) { count = 0; SSL_renegotiate(con); } } #endif k = SSL_write(con, &(buf[l]), (unsigned int) i); switch (SSL_get_error(con, k)) { case SSL_ERROR_NONE: break; case SSL_ERROR_WANT_WRITE: case SSL_ERROR_WANT_READ: case SSL_ERROR_WANT_X509_LOOKUP: BIO_printf(bio_s_out, "Write BLOCK\n"); break; case SSL_ERROR_SYSCALL: case SSL_ERROR_SSL: BIO_printf(bio_s_out, "ERROR\n"); ERR_print_errors(bio_err); ret = 1; goto err; /* break; */ case SSL_ERROR_ZERO_RETURN: BIO_printf(bio_s_out, "DONE\n"); ret = 1; goto err; } if (k <= 0) continue; l += k; i -= k; if (i <= 0) break; } } if (read_from_sslcon) { if (!SSL_is_init_finished(con)) { i = init_ssl_connection(con); if (i < 0) { ret = 0; goto err; } else if (i == 0) { ret = 1; goto err; } } else { again: i = SSL_read(con, (char *) buf, bufsize); switch (SSL_get_error(con, i)) { case SSL_ERROR_NONE: { int len, n; for (len = 0; len < i;) { do { n = write(fileno(stdout), buf + len, i - len); } while (n == -1 && errno == EINTR); if (n == -1) { BIO_printf(bio_s_out, "ERROR\n"); goto err; } len += n; } } if (SSL_pending(con)) goto again; break; case SSL_ERROR_WANT_WRITE: case SSL_ERROR_WANT_READ: BIO_printf(bio_s_out, "Read BLOCK\n"); break; case SSL_ERROR_SYSCALL: case SSL_ERROR_SSL: BIO_printf(bio_s_out, "ERROR\n"); ERR_print_errors(bio_err); ret = 1; goto err; case SSL_ERROR_ZERO_RETURN: BIO_printf(bio_s_out, "DONE\n"); ret = 1; goto err; } } } } err: if (con != NULL) { BIO_printf(bio_s_out, "shutting down SSL\n"); SSL_set_shutdown(con, SSL_SENT_SHUTDOWN | SSL_RECEIVED_SHUTDOWN); SSL_free(con); } BIO_printf(bio_s_out, "CONNECTION CLOSED\n"); freezero(buf, bufsize); if (ret >= 0) BIO_printf(bio_s_out, "ACCEPT\n"); return (ret); } static void close_accept_socket(void) { BIO_printf(bio_err, "shutdown accept socket\n"); if (accept_socket >= 0) { shutdown(accept_socket, SHUT_RDWR); close(accept_socket); } } static int init_ssl_connection(SSL * con) { int i; const char *str; X509 *peer; long verify_error; char buf[BUFSIZ]; unsigned char *exportedkeymat; i = SSL_accept(con); if (i <= 0) { if (BIO_sock_should_retry(i)) { BIO_printf(bio_s_out, "DELAY\n"); return (1); } BIO_printf(bio_err, "ERROR\n"); verify_error = SSL_get_verify_result(con); if (verify_error != X509_V_OK) { BIO_printf(bio_err, "verify error:%s\n", X509_verify_cert_error_string(verify_error)); } else ERR_print_errors(bio_err); return (0); } PEM_write_bio_SSL_SESSION(bio_s_out, SSL_get_session(con)); peer = SSL_get_peer_certificate(con); if (peer != NULL) { BIO_printf(bio_s_out, "Client certificate\n"); PEM_write_bio_X509(bio_s_out, peer); X509_NAME_oneline(X509_get_subject_name(peer), buf, sizeof buf); BIO_printf(bio_s_out, "subject=%s\n", buf); X509_NAME_oneline(X509_get_issuer_name(peer), buf, sizeof buf); BIO_printf(bio_s_out, "issuer=%s\n", buf); X509_free(peer); } if (SSL_get_shared_ciphers(con, buf, sizeof buf) != NULL) BIO_printf(bio_s_out, "Shared ciphers:%s\n", buf); str = SSL_CIPHER_get_name(SSL_get_current_cipher(con)); BIO_printf(bio_s_out, "CIPHER is %s\n", (str != NULL) ? str : "(NONE)"); #ifndef OPENSSL_NO_SRTP { SRTP_PROTECTION_PROFILE *srtp_profile = SSL_get_selected_srtp_profile(con); if (srtp_profile) BIO_printf(bio_s_out, "SRTP Extension negotiated, profile=%s\n", srtp_profile->name); } #endif if (SSL_cache_hit(con)) BIO_printf(bio_s_out, "Reused session-id\n"); BIO_printf(bio_s_out, "Secure Renegotiation IS%s supported\n", SSL_get_secure_renegotiation_support(con) ? "" : " NOT"); if (keymatexportlabel != NULL) { BIO_printf(bio_s_out, "Keying material exporter:\n"); BIO_printf(bio_s_out, " Label: '%s'\n", keymatexportlabel); BIO_printf(bio_s_out, " Length: %i bytes\n", keymatexportlen); exportedkeymat = malloc(keymatexportlen); if (exportedkeymat != NULL) { if (!SSL_export_keying_material(con, exportedkeymat, keymatexportlen, keymatexportlabel, strlen(keymatexportlabel), NULL, 0, 0)) { BIO_printf(bio_s_out, " Error\n"); } else { BIO_printf(bio_s_out, " Keying material: "); for (i = 0; i < keymatexportlen; i++) BIO_printf(bio_s_out, "%02X", exportedkeymat[i]); BIO_printf(bio_s_out, "\n"); } free(exportedkeymat); } } return (1); } #ifndef OPENSSL_NO_DH static DH * load_dh_param(const char *dhfile) { DH *ret = NULL; BIO *bio; if ((bio = BIO_new_file(dhfile, "r")) == NULL) goto err; ret = PEM_read_bio_DHparams(bio, NULL, NULL, NULL); err: BIO_free(bio); return (ret); } #endif static int www_body(char *hostname, int s, unsigned char *context) { char *buf = NULL; int ret = 1; int i, j, k, dot; SSL *con; const SSL_CIPHER *c; BIO *io, *ssl_bio, *sbio; buf = malloc(bufsize); if (buf == NULL) return (0); io = BIO_new(BIO_f_buffer()); ssl_bio = BIO_new(BIO_f_ssl()); if ((io == NULL) || (ssl_bio == NULL)) goto err; if (s_nbio) { if (!s_quiet) BIO_printf(bio_err, "turning on non blocking io\n"); if (!BIO_socket_nbio(s, 1)) ERR_print_errors(bio_err); } /* lets make the output buffer a reasonable size */ if (!BIO_set_write_buffer_size(io, bufsize)) goto err; if ((con = SSL_new(ctx)) == NULL) goto err; if (s_tlsextdebug) { SSL_set_tlsext_debug_callback(con, tlsext_cb); SSL_set_tlsext_debug_arg(con, bio_s_out); } if (context) SSL_set_session_id_context(con, context, strlen((char *) context)); sbio = BIO_new_socket(s, BIO_NOCLOSE); if (s_nbio_test) { BIO *test; test = BIO_new(BIO_f_nbio_test()); sbio = BIO_push(test, sbio); } SSL_set_bio(con, sbio, sbio); SSL_set_accept_state(con); /* SSL_set_fd(con,s); */ BIO_set_ssl(ssl_bio, con, BIO_CLOSE); BIO_push(io, ssl_bio); if (s_debug) { SSL_set_debug(con, 1); BIO_set_callback(SSL_get_rbio(con), bio_dump_callback); BIO_set_callback_arg(SSL_get_rbio(con), (char *) bio_s_out); } if (s_msg) { SSL_set_msg_callback(con, msg_cb); SSL_set_msg_callback_arg(con, bio_s_out); } for (;;) { i = BIO_gets(io, buf, bufsize - 1); if (i < 0) { /* error */ if (!BIO_should_retry(io)) { if (!s_quiet) ERR_print_errors(bio_err); goto err; } else { if (s_debug) { BIO_printf(bio_s_out, "read R BLOCK\n"); sleep(1); } continue; } } else if (i == 0) { /* end of input */ ret = 1; goto end; } /* else we have data */ if (((www == 1) && (strncmp("GET ", buf, 4) == 0)) || ((www == 2) && (strncmp("GET /stats ", buf, 11) == 0))) { char *p; X509 *peer; STACK_OF(SSL_CIPHER) * sk; static const char *space = " "; BIO_puts(io, "HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n"); BIO_puts(io, "<HTML><BODY BGCOLOR=\"#ffffff\">\n"); BIO_puts(io, "<pre>\n"); /* BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/ BIO_puts(io, "\n"); for (i = 0; i < local_argc; i++) { BIO_puts(io, local_argv[i]); BIO_write(io, " ", 1); } BIO_puts(io, "\n"); BIO_printf(io, "Secure Renegotiation IS%s supported\n", SSL_get_secure_renegotiation_support(con) ? "" : " NOT"); /* * The following is evil and should not really be * done */ BIO_printf(io, "Ciphers supported in s_server binary\n"); sk = SSL_get_ciphers(con); j = sk_SSL_CIPHER_num(sk); for (i = 0; i < j; i++) { c = sk_SSL_CIPHER_value(sk, i); BIO_printf(io, "%-11s:%-25s", SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c)); if ((((i + 1) % 2) == 0) && (i + 1 != j)) BIO_puts(io, "\n"); } BIO_puts(io, "\n"); p = SSL_get_shared_ciphers(con, buf, bufsize); if (p != NULL) { BIO_printf(io, "---\nCiphers common between both SSL end points:\n"); j = i = 0; while (*p) { if (*p == ':') { BIO_write(io, space, 26 - j); i++; j = 0; BIO_write(io, ((i % 3) ? " " : "\n"), 1); } else { BIO_write(io, p, 1); j++; } p++; } BIO_puts(io, "\n"); } BIO_printf(io, (SSL_cache_hit(con) ? "---\nReused, " : "---\nNew, ")); c = SSL_get_current_cipher(con); BIO_printf(io, "%s, Cipher is %s\n", SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c)); SSL_SESSION_print(io, SSL_get_session(con)); BIO_printf(io, "---\n"); print_stats(io, SSL_get_SSL_CTX(con)); BIO_printf(io, "---\n"); peer = SSL_get_peer_certificate(con); if (peer != NULL) { BIO_printf(io, "Client certificate\n"); X509_print(io, peer); PEM_write_bio_X509(io, peer); } else BIO_puts(io, "no client certificate available\n"); BIO_puts(io, "</BODY></HTML>\r\n\r\n"); break; } else if ((www == 2 || www == 3) && (strncmp("GET /", buf, 5) == 0)) { BIO *file; char *p, *e; static const char *text = "HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n"; /* skip the '/' */ p = &(buf[5]); dot = 1; for (e = p; *e != '\0'; e++) { if (e[0] == ' ') break; switch (dot) { case 1: dot = (e[0] == '.') ? 2 : 0; break; case 2: dot = (e[0] == '.') ? 3 : 0; break; case 3: dot = (e[0] == '/' || e[0] == '\\') ? -1 : 0; break; } if (dot == 0) dot = (e[0] == '/' || e[0] == '\\') ? 1 : 0; } dot = (dot == 3) || (dot == -1); /* filename contains * ".." component */ if (*e == '\0') { BIO_puts(io, text); BIO_printf(io, "'%s' is an invalid file name\r\n", p); break; } *e = '\0'; if (dot) { BIO_puts(io, text); BIO_printf(io, "'%s' contains '..' reference\r\n", p); break; } if (*p == '/') { BIO_puts(io, text); BIO_printf(io, "'%s' is an invalid path\r\n", p); break; } /* if a directory, do the index thang */ if (app_isdir(p) > 0) { BIO_puts(io, text); BIO_printf(io, "'%s' is a directory\r\n", p); break; } if ((file = BIO_new_file(p, "r")) == NULL) { BIO_puts(io, text); BIO_printf(io, "Error opening '%s'\r\n", p); ERR_print_errors(io); break; } if (!s_quiet) BIO_printf(bio_err, "FILE:%s\n", p); if (www == 2) { i = strlen(p); if (((i > 5) && (strcmp(&(p[i - 5]), ".html") == 0)) || ((i > 4) && (strcmp(&(p[i - 4]), ".php") == 0)) || ((i > 4) && (strcmp(&(p[i - 4]), ".htm") == 0))) BIO_puts(io, "HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n"); else BIO_puts(io, "HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n"); } /* send the file */ for (;;) { i = BIO_read(file, buf, bufsize); if (i <= 0) break; #ifdef RENEG total_bytes += i; fprintf(stderr, "%d\n", i); if (total_bytes > 3 * 1024) { total_bytes = 0; fprintf(stderr, "RENEGOTIATE\n"); SSL_renegotiate(con); } #endif for (j = 0; j < i;) { #ifdef RENEG { static count = 0; if (++count == 13) { SSL_renegotiate(con); } } #endif k = BIO_write(io, &(buf[j]), i - j); if (k <= 0) { if (!BIO_should_retry(io)) goto write_error; else { BIO_printf(bio_s_out, "rwrite W BLOCK\n"); } } else { j += k; } } } write_error: BIO_free(file); break; } } for (;;) { i = (int) BIO_flush(io); if (i <= 0) { if (!BIO_should_retry(io)) break; } else break; } end: /* make sure we re-use sessions */ SSL_set_shutdown(con, SSL_SENT_SHUTDOWN | SSL_RECEIVED_SHUTDOWN); err: if (ret >= 0) BIO_printf(bio_s_out, "ACCEPT\n"); free(buf); BIO_free_all(io); /* if (ssl_bio != NULL) BIO_free(ssl_bio);*/ return (ret); } #define MAX_SESSION_ID_ATTEMPTS 10 static int generate_session_id(const SSL * ssl, unsigned char *id, unsigned int *id_len) { unsigned int count = 0; do { arc4random_buf(id, *id_len); /* * Prefix the session_id with the required prefix. NB: If our * prefix is too long, clip it - but there will be worse * effects anyway, eg. the server could only possibly create * 1 session ID (ie. the prefix!) so all future session * negotiations will fail due to conflicts. */ memcpy(id, session_id_prefix, (strlen(session_id_prefix) < *id_len) ? strlen(session_id_prefix) : *id_len); } while (SSL_has_matching_session_id(ssl, id, *id_len) && (++count < MAX_SESSION_ID_ATTEMPTS)); if (count >= MAX_SESSION_ID_ATTEMPTS) return 0; return 1; }