X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=apps%2Fs_server.c;h=65525572e2735658cef1174db2ebb18d594166a4;hp=d1e406c7b47e2501bbb8cc270337c113fd2ee48a;hb=f1e6643751d1f6a30bd63c4dab7c0a10a9bc9ec5;hpb=b7896b3cb86d80206af14a14d69b0717786f2729 diff --git a/apps/s_server.c b/apps/s_server.c index d1e406c7b4..65525572e2 100644 --- a/apps/s_server.c +++ b/apps/s_server.c @@ -1,5 +1,5 @@ /* apps/s_server.c */ -/* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com) +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) * All rights reserved. * * This package is an SSL implementation written @@ -55,52 +55,128 @@ * copied and put under another distribution licence * [including the GNU Public Licence.] */ +/* ==================================================================== + * Copyright (c) 1998-2001 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 #include #include #include #include #include -#ifdef WIN16 +#include +#ifdef OPENSSL_NO_STDIO #define APPS_WIN16 #endif -#include "lhash.h" -#include "bn.h" + +/* With IPv6, it looks like Digital has mixed up the proper order of + recursive header file inclusion, resulting in the compiler complaining + that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which + is needed to have fileno() declared correctly... So let's define u_int */ +#if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT) +#define __U_INT +typedef unsigned int u_int; +#endif + +#include +#include #define USE_SOCKETS #include "apps.h" -#include "err.h" -#include "pem.h" -#include "x509.h" -#include "ssl.h" +#include +#include +#include +#include +#include #include "s_apps.h" -#ifndef NOPROTO -static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int export); -static int sv_body(char *hostname, int s); -static int www_body(char *hostname, int s); +#ifdef OPENSSL_SYS_WINDOWS +#include +#endif + +#if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000) +/* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */ +#undef FIONBIO +#endif + +#ifndef OPENSSL_NO_RSA +static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength); +#endif +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 DH *load_dh_param(void ); +static int generate_session_id(const SSL *ssl, unsigned char *id, + unsigned int *id_len); +#ifndef OPENSSL_NO_DH +static DH *load_dh_param(char *dhfile); static DH *get_dh512(void); -#else -static RSA MS_CALLBACK *tmp_rsa_cb(); -static int sv_body(); -static int www_body(); -static void close_accept_socket(); -static void sv_usage(); -static int init_ssl_connection(); -static void print_stats(); -static DH *load_dh_param(); -static DH *get_dh512(); #endif - +#ifdef MONOLITH +static void s_server_init(void); +#endif #ifndef S_ISDIR -#define S_ISDIR(a) (((a) & _S_IFMT) == _S_IFDIR) +# if defined(_S_IFMT) && defined(_S_IFDIR) +# define S_ISDIR(a) (((a) & _S_IFMT) == _S_IFDIR) +# else +# define S_ISDIR(a) (((a) & S_IFMT) == S_IFDIR) +# endif #endif +#ifndef OPENSSL_NO_DH static unsigned char dh512_p[]={ 0xDA,0x58,0x3C,0x16,0xD9,0x85,0x22,0x89,0xD0,0xE4,0xAF,0x75, 0x6F,0x4C,0xCA,0x92,0xDD,0x4B,0xE5,0x33,0xB8,0x04,0xFB,0x0F, @@ -113,100 +189,307 @@ static unsigned char dh512_g[]={ 0x02, }; -static DH *get_dh512() +static DH *get_dh512(void) { DH *dh=NULL; -#ifndef NO_DH if ((dh=DH_new()) == NULL) return(NULL); dh->p=BN_bin2bn(dh512_p,sizeof(dh512_p),NULL); dh->g=BN_bin2bn(dh512_g,sizeof(dh512_g),NULL); if ((dh->p == NULL) || (dh->g == NULL)) return(NULL); -#endif return(dh); } +#endif /* static int load_CA(SSL_CTX *ctx, char *file);*/ #undef BUFSIZZ -#define BUFSIZZ 8*1024 +#define BUFSIZZ 16*1024 +static int bufsize=BUFSIZZ; static int accept_socket= -1; #define TEST_CERT "server.pem" #undef PROG #define PROG s_server_main -#define DH_PARAM "server.pem" - extern int verify_depth; static char *cipher=NULL; -int verify=SSL_VERIFY_NONE; -char *s_cert_file=TEST_CERT,*s_key_file=NULL; +static int s_server_verify=SSL_VERIFY_NONE; +static int s_server_session_id_context = 1; /* anything will do */ +static char *s_cert_file=TEST_CERT,*s_key_file=NULL; +static char *s_dcert_file=NULL,*s_dkey_file=NULL; #ifdef FIONBIO static int s_nbio=0; #endif static int s_nbio_test=0; +int s_crlf=0; static SSL_CTX *ctx=NULL; static int www=0; static BIO *bio_s_out=NULL; static int s_debug=0; +static int s_msg=0; static int s_quiet=0; -static void sv_usage() +static int hack=0; +static char *engine_id=NULL; +static const char *session_id_prefix=NULL; + +#ifdef MONOLITH +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; +#ifdef FIONBIO + s_nbio=0; +#endif + s_nbio_test=0; + ctx=NULL; + www=0; + + bio_s_out=NULL; + s_debug=0; + s_msg=0; + s_quiet=0; + hack=0; + engine_id=NULL; + } +#endif + +static void sv_usage(void) { BIO_printf(bio_err,"usage: s_server [args ...]\n"); BIO_printf(bio_err,"\n"); - BIO_printf(bio_err," -accpet arg - port to accept on (default is %d\n",PORT); + 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, PEM format assumed\n"); BIO_printf(bio_err," (default is %s)\n",TEST_CERT); - BIO_printf(bio_err," -key arg - RSA file to use, PEM format assumed, in cert file if\n"); + BIO_printf(bio_err," -key arg - Private Key file to use, PEM format assumed, in cert file if\n"); BIO_printf(bio_err," not specified (default is %s)\n",TEST_CERT); + BIO_printf(bio_err," -dcert arg - second certificate file to use (usually for DSA)\n"); + BIO_printf(bio_err," -dkey arg - second private key file to use (usually for DSA)\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"); #ifdef FIONBIO BIO_printf(bio_err," -nbio - Run with non-blocking IO\n"); #endif 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 'ssleay ciphers' to see what goes here\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 - No server output\n"); BIO_printf(bio_err," -no_tmp_rsa - Do not generate a tmp RSA key\n"); BIO_printf(bio_err," -ssl2 - Just talk SSLv2\n"); BIO_printf(bio_err," -ssl3 - Just talk SSLv3\n"); - BIO_printf(bio_err," -bugs - Turn on SSL bug compatability\n"); + BIO_printf(bio_err," -tls1 - Just talk TLSv1\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"); +#ifndef OPENSSL_NO_DH + BIO_printf(bio_err," -no_dhe - Disable ephemeral DH\n"); +#endif + 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 - Returns requested page from to a 'GET HTTP/1.0'\n"); + BIO_printf(bio_err," -WWW - Respond to a 'GET / HTTP/1.0' with file ./\n"); + BIO_printf(bio_err," -HTTP - Respond to a 'GET / HTTP/1.0' with file ./\n"); + BIO_printf(bio_err," with the assumption it contains a complete HTTP response.\n"); + BIO_printf(bio_err," -engine id - Initialise and use the specified engine\n"); + BIO_printf(bio_err," -id_prefix arg - Generate SSL/TLS session IDs prefixed by 'arg'\n"); + BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR); } -static int local_argc; +static int local_argc=0; static char **local_argv; -static int hack; -int MAIN(argc, argv) -int argc; -char *argv[]; +#ifdef CHARSET_EBCDIC +static int ebcdic_new(BIO *bi); +static int ebcdic_free(BIO *a); +static int ebcdic_read(BIO *b, char *out, int outl); +static int ebcdic_write(BIO *b, char *in, int inl); +static long ebcdic_ctrl(BIO *b, int cmd, long num, char *ptr); +static int ebcdic_gets(BIO *bp, char *buf, int size); +static int ebcdic_puts(BIO *bp, char *str); + +#define BIO_TYPE_EBCDIC_FILTER (18|0x0200) +static BIO_METHOD methods_ebcdic= { + BIO_TYPE_EBCDIC_FILTER, + "EBCDIC/ASCII filter", + ebcdic_write, + ebcdic_read, + ebcdic_puts, + ebcdic_gets, + ebcdic_ctrl, + ebcdic_new, + ebcdic_free, + }; + +typedef struct +{ + size_t alloced; + char buff[1]; +} EBCDIC_OUTBUFF; + +BIO_METHOD *BIO_f_ebcdic_filter() +{ + return(&methods_ebcdic); +} + +static int ebcdic_new(BIO *bi) +{ + EBCDIC_OUTBUFF *wbuf; + + wbuf = (EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + 1024); + wbuf->alloced = 1024; + wbuf->buff[0] = '\0'; + + bi->ptr=(char *)wbuf; + bi->init=1; + bi->flags=0; + return(1); +} + +static int ebcdic_free(BIO *a) +{ + if (a == NULL) return(0); + if (a->ptr != NULL) + OPENSSL_free(a->ptr); + a->ptr=NULL; + a->init=0; + a->flags=0; + return(1); +} + +static int ebcdic_read(BIO *b, char *out, int outl) +{ + int ret=0; + + if (out == NULL || outl == 0) return(0); + if (b->next_bio == NULL) return(0); + + ret=BIO_read(b->next_bio,out,outl); + if (ret > 0) + ascii2ebcdic(out,out,ret); + return(ret); +} + +static int ebcdic_write(BIO *b, char *in, int inl) +{ + EBCDIC_OUTBUFF *wbuf; + int ret=0; + int num; + unsigned char n; + + if ((in == NULL) || (inl <= 0)) return(0); + if (b->next_bio == NULL) return(0); + + wbuf=(EBCDIC_OUTBUFF *)b->ptr; + + if (inl > (num = wbuf->alloced)) + { + num = num + num; /* double the size */ + if (num < inl) + num = inl; + OPENSSL_free(wbuf); + wbuf=(EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + num); + + wbuf->alloced = num; + wbuf->buff[0] = '\0'; + + b->ptr=(char *)wbuf; + } + + ebcdic2ascii(wbuf->buff, in, inl); + + ret=BIO_write(b->next_bio, wbuf->buff, inl); + + return(ret); +} + +static long ebcdic_ctrl(BIO *b, int cmd, long num, char *ptr) +{ + long ret; + + if (b->next_bio == NULL) return(0); + switch (cmd) + { + case BIO_CTRL_DUP: + ret=0L; + break; + default: + ret=BIO_ctrl(b->next_bio,cmd,num,ptr); + break; + } + return(ret); +} + +static int ebcdic_gets(BIO *bp, char *buf, int size) +{ + int i, ret; + if (bp->next_bio == NULL) return(0); +/* return(BIO_gets(bp->next_bio,buf,size));*/ + for (i=0; inext_bio == NULL) return(0); + return ebcdic_write(bp, str, strlen(str)); +} +#endif + +int MAIN(int, char **); + +int MAIN(int argc, char *argv[]) + { + X509_STORE *store = NULL; + int vflags = 0; short port=PORT; char *CApath=NULL,*CAfile=NULL; + char *context = NULL; + char *dhfile = NULL; int badop=0,bugs=0; int ret=1; - int no_tmp_rsa=0,nocert=0; + int off=0; + int no_tmp_rsa=0,no_dhe=0,nocert=0; int state=0; SSL_METHOD *meth=NULL; - DH *dh=NULL; + ENGINE *e=NULL; + char *inrand=NULL; -#if !defined(NO_SSL2) && !defined(NO_SSL3) +#if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3) meth=SSLv23_server_method(); -#elif !defined(NO_SSL3) +#elif !defined(OPENSSL_NO_SSL3) meth=SSLv3_server_method(); -#elif !defined(NO_SSL2) +#elif !defined(OPENSSL_NO_SSL2) meth=SSLv2_server_method(); #endif @@ -214,12 +497,16 @@ char *argv[]; local_argv=argv; apps_startup(); - s_quiet=0; - s_debug=0; +#ifdef MONOLITH + s_server_init(); +#endif if (bio_err == NULL) bio_err=BIO_new_fp(stderr,BIO_NOCLOSE); + if (!load_config(bio_err, NULL)) + goto end; + verify_depth=0; #ifdef FIONBIO s_nbio=0; @@ -240,19 +527,24 @@ char *argv[]; } else if (strcmp(*argv,"-verify") == 0) { - verify=SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE; + s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE; if (--argc < 1) goto bad; verify_depth=atoi(*(++argv)); BIO_printf(bio_err,"verify depth is %d\n",verify_depth); } else if (strcmp(*argv,"-Verify") == 0) { - verify=SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT| + s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT| SSL_VERIFY_CLIENT_ONCE; if (--argc < 1) goto bad; verify_depth=atoi(*(++argv)); 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= *(++argv); + } else if (strcmp(*argv,"-cert") == 0) { if (--argc < 1) goto bad; @@ -263,6 +555,21 @@ char *argv[]; if (--argc < 1) goto bad; s_key_file= *(++argv); } + else if (strcmp(*argv,"-dhparam") == 0) + { + if (--argc < 1) goto bad; + dhfile = *(++argv); + } + else if (strcmp(*argv,"-dcert") == 0) + { + if (--argc < 1) goto bad; + s_dcert_file= *(++argv); + } + else if (strcmp(*argv,"-dkey") == 0) + { + if (--argc < 1) goto bad; + s_dkey_file= *(++argv); + } else if (strcmp(*argv,"-nocert") == 0) { nocert=1; @@ -272,6 +579,16 @@ char *argv[]; if (--argc < 1) goto bad; CApath= *(++argv); } + else if (strcmp(*argv,"-crl_check") == 0) + { + vflags |= X509_V_FLAG_CRL_CHECK; + } + else if (strcmp(*argv,"-crl_check") == 0) + { + vflags |= X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL; + } + else if (strcmp(*argv,"-serverpref") == 0) + { off|=SSL_OP_CIPHER_SERVER_PREFERENCE; } else if (strcmp(*argv,"-cipher") == 0) { if (--argc < 1) goto bad; @@ -295,28 +612,61 @@ char *argv[]; } else if (strcmp(*argv,"-debug") == 0) { s_debug=1; } + else if (strcmp(*argv,"-msg") == 0) + { s_msg=1; } else if (strcmp(*argv,"-hack") == 0) { hack=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_tmp_rsa=1; } + else if (strcmp(*argv,"-no_dhe") == 0) + { no_dhe=1; } else if (strcmp(*argv,"-www") == 0) { www=1; } else if (strcmp(*argv,"-WWW") == 0) { www=2; } -#ifndef NO_SSL2 + 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; } +#ifndef OPENSSL_NO_SSL2 else if (strcmp(*argv,"-ssl2") == 0) { meth=SSLv2_server_method(); } #endif -#ifndef NO_SSL3 +#ifndef OPENSSL_NO_SSL3 else if (strcmp(*argv,"-ssl3") == 0) { meth=SSLv3_server_method(); } #endif +#ifndef OPENSSL_NO_TLS1 + else if (strcmp(*argv,"-tls1") == 0) + { meth=TLSv1_server_method(); } +#endif + else if (strcmp(*argv, "-id_prefix") == 0) + { + if (--argc < 1) goto bad; + session_id_prefix = *(++argv); + } + else if (strcmp(*argv,"-engine") == 0) + { + if (--argc < 1) goto bad; + engine_id= *(++argv); + } + else if (strcmp(*argv,"-rand") == 0) + { + if (--argc < 1) goto bad; + inrand= *(++argv); + } else { BIO_printf(bio_err,"unknown option %s\n",*argv); @@ -333,9 +683,18 @@ bad: goto end; } + if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL + && !RAND_status()) + { + BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n"); + } + if (inrand != NULL) + BIO_printf(bio_err,"%ld semi-random bytes loaded\n", + app_RAND_load_files(inrand)); + if (bio_s_out == NULL) { - if (s_quiet && !s_debug) + if (s_quiet && !s_debug && !s_msg) { bio_s_out=BIO_new(BIO_s_null()); } @@ -346,16 +705,20 @@ bad: } } -#if !defined(NO_RSA) || !defined(NO_DSA) +#if !defined(OPENSSL_NO_RSA) || !defined(OPENSSL_NO_DSA) || !defined(OPENSSL_NO_ECDSA) if (nocert) #endif { s_cert_file=NULL; s_key_file=NULL; + s_dcert_file=NULL; + s_dkey_file=NULL; } SSL_load_error_strings(); - SSLeay_add_ssl_algorithms(); + OpenSSL_add_ssl_algorithms(); + + e = setup_engine(bio_err, engine_id, 1); ctx=SSL_CTX_new(meth); if (ctx == NULL) @@ -363,13 +726,31 @@ bad: ERR_print_errors(bio_err); 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); if (hack) SSL_CTX_set_options(ctx,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG); - if (hack) SSL_CTX_set_options(ctx,SSL_OP_NON_EXPORT_FIRST); + SSL_CTX_set_options(ctx,off); if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback); + SSL_CTX_sess_set_cache_size(ctx,128); + #if 0 if (cipher == NULL) cipher=getenv("SSL_CIPHER"); #endif @@ -385,34 +766,51 @@ bad: 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"); + /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */ ERR_print_errors(bio_err); - goto end; + /* goto end; */ } + store = SSL_CTX_get_cert_store(ctx); + X509_STORE_set_flags(store, vflags); -#ifndef NO_DH - /* EAY EAY EAY evil hack */ - dh=load_dh_param(); - if (dh != NULL) - { - BIO_printf(bio_s_out,"Setting temp DH parameters\n"); - } - else +#ifndef OPENSSL_NO_DH + if (!no_dhe) { - BIO_printf(bio_s_out,"Using default temp DH parameters\n"); - dh=get_dh512(); - } - BIO_flush(bio_s_out); + 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 default temp DH parameters\n"); + dh=get_dh512(); + } + (void)BIO_flush(bio_s_out); - SSL_CTX_set_tmp_dh(ctx,dh); - DH_free(dh); + SSL_CTX_set_tmp_dh(ctx,dh); + DH_free(dh); + } #endif if (!set_cert_stuff(ctx,s_cert_file,s_key_file)) goto end; + if (s_dcert_file != NULL) + { + if (!set_cert_stuff(ctx,s_dcert_file,s_dkey_file)) + goto end; + } +#ifndef OPENSSL_NO_RSA #if 1 - SSL_CTX_set_tmp_rsa_callback(ctx,tmp_rsa_cb); + if (!no_tmp_rsa) + SSL_CTX_set_tmp_rsa_callback(ctx,tmp_rsa_cb); #else if (!no_tmp_rsa && SSL_CTX_need_tmp_RSA(ctx)) { @@ -431,19 +829,27 @@ bad: RSA_free(rsa); BIO_printf(bio_s_out,"\n"); } +#endif #endif if (cipher != NULL) - SSL_CTX_set_cipher_list(ctx,cipher); - SSL_CTX_set_verify(ctx,verify,verify_callback); + if(!SSL_CTX_set_cipher_list(ctx,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); - SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(s_cert_file)); + if (CAfile != NULL) + SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile)); BIO_printf(bio_s_out,"ACCEPT\n"); if (www) - do_server(port,&accept_socket,www_body); + do_server(port,&accept_socket,www_body, context); else - do_server(port,&accept_socket,sv_body); + do_server(port,&accept_socket,sv_body, context); print_stats(bio_s_out,ctx); ret=0; end: @@ -453,32 +859,36 @@ end: BIO_free(bio_s_out); bio_s_out=NULL; } + apps_shutdown(); EXIT(ret); } -static void print_stats(bio,ssl_ctx) -BIO *bio; -SSL_CTX *ssl_ctx; +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,"%4d client connects (SSL_connect())\n", SSL_CTX_sess_connect(ssl_ctx)); + BIO_printf(bio,"%4d client renegotiates (SSL_connect())\n", + SSL_CTX_sess_connect_renegotiate(ssl_ctx)); BIO_printf(bio,"%4d client connects that finished\n", SSL_CTX_sess_connect_good(ssl_ctx)); BIO_printf(bio,"%4d server accepts (SSL_accept())\n", SSL_CTX_sess_accept(ssl_ctx)); + BIO_printf(bio,"%4d server renegotiates (SSL_accept())\n", + SSL_CTX_sess_accept_renegotiate(ssl_ctx)); BIO_printf(bio,"%4d server accepts that finished\n", SSL_CTX_sess_accept_good(ssl_ctx)); BIO_printf(bio,"%4d session cache hits\n",SSL_CTX_sess_hits(ssl_ctx)); BIO_printf(bio,"%4d session cache misses\n",SSL_CTX_sess_misses(ssl_ctx)); BIO_printf(bio,"%4d session cache timeouts\n",SSL_CTX_sess_timeouts(ssl_ctx)); BIO_printf(bio,"%4d callback cache hits\n",SSL_CTX_sess_cb_hits(ssl_ctx)); + BIO_printf(bio,"%4d cache full overflows (%d allowed)\n", + SSL_CTX_sess_cache_full(ssl_ctx), + SSL_CTX_sess_get_cache_size(ssl_ctx)); } -static int sv_body(hostname, s) -char *hostname; -int s; +static int sv_body(char *hostname, int s, unsigned char *context) { char *buf=NULL; fd_set readfds; @@ -487,8 +897,11 @@ int s; unsigned long l; SSL *con=NULL; BIO *sbio; +#ifdef OPENSSL_SYS_WINDOWS + struct timeval tv; +#endif - if ((buf=Malloc(BUFSIZZ)) == NULL) + if ((buf=OPENSSL_malloc(bufsize)) == NULL) { BIO_printf(bio_err,"out of memory\n"); goto err; @@ -500,12 +913,26 @@ int s; if (!s_quiet) BIO_printf(bio_err,"turning on non blocking io\n"); - socket_ioctl(s,FIONBIO,&sl); + if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0) + ERR_print_errors(bio_err); } #endif - if (con == NULL) - con=(SSL *)SSL_new(ctx); + if (con == NULL) { + con=SSL_new(ctx); +#ifndef OPENSSL_NO_KRB5 + if ((con->kssl_ctx = kssl_ctx_new()) != NULL) + { + kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVICE, + KRB5SVC); + kssl_ctx_setstring(con->kssl_ctx, KSSL_KEYTAB, + KRB5KEYTAB); + } +#endif /* OPENSSL_NO_KRB5 */ + if(context) + SSL_set_session_id_context(con, context, + strlen((char *)context)); + } SSL_clear(con); sbio=BIO_new_socket(s,BIO_NOCLOSE); @@ -526,20 +953,81 @@ int s; BIO_set_callback(SSL_get_rbio(con),bio_dump_cb); BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out); } + if (s_msg) + { + SSL_set_msg_callback(con, msg_cb); + SSL_set_msg_callback_arg(con, bio_s_out); + } width=s+1; for (;;) { - FD_ZERO(&readfds); -#ifndef WINDOWS - FD_SET(fileno(stdin),&readfds); + int read_from_terminal; + int read_from_sslcon; + + read_from_terminal = 0; + read_from_sslcon = SSL_pending(con); + + if (!read_from_sslcon) + { + FD_ZERO(&readfds); +#ifndef OPENSSL_SYS_WINDOWS + FD_SET(fileno(stdin),&readfds); #endif - FD_SET(s,&readfds); - i=select(width,&readfds,NULL,NULL,NULL); - if (i <= 0) continue; - if (FD_ISSET(fileno(stdin),&readfds)) + FD_SET(s,&readfds); + /* Note: under VMS with SOCKETSHR the second parameter is + * currently of type (int *) whereas under other systems + * it is (void *) if you don't have a cast it will choke + * the compiler: if you do have a cast then you can either + * go for (int *) or (void *). + */ +#ifdef OPENSSL_SYS_WINDOWS + /* Under Windows we can't select on stdin: only + * on sockets. As a workaround we timeout the select every + * second and check for any keypress. In a proper Windows + * application we wouldn't do this because it is inefficient. + */ + tv.tv_sec = 1; + tv.tv_usec = 0; + i=select(width,(void *)&readfds,NULL,NULL,&tv); + if((i < 0) || (!i && !_kbhit() ) )continue; + if(_kbhit()) + read_from_terminal = 1; +#else + i=select(width,(void *)&readfds,NULL,NULL,NULL); + if (i <= 0) continue; + if (FD_ISSET(fileno(stdin),&readfds)) + read_from_terminal = 1; +#endif + if (FD_ISSET(s,&readfds)) + read_from_sslcon = 1; + } + if (read_from_terminal) { - i=read(fileno(stdin),buf,BUFSIZZ); + 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')) @@ -558,21 +1046,27 @@ int s; ret= -11;*/ goto err; } - if (buf[0] == 'r') + 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; - strcpy(buf,"server side RE-NEGOTIATE\n"); + /* strcpy(buf,"server side RE-NEGOTIATE\n"); */ } - if (buf[0] == 'R') + 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; - strcpy(buf,"server side RE-NEGOTIATE asking for client cert\n"); + /* strcpy(buf,"server side RE-NEGOTIATE asking for client cert\n"); */ } if (buf[0] == 'P') { @@ -584,23 +1078,34 @@ int s; print_stats(bio_s_out,SSL_get_SSL_CTX(con)); } } +#ifdef CHARSET_EBCDIC + ebcdic2ascii(buf,buf,i); +#endif l=k=0; for (;;) { /* should do a select for the write */ - k=SSL_write(con,&(buf[l]),(unsigned int)i); - if ( -#ifdef FIONBIO - s_nbio && +#ifdef RENEG +{ static count=0; if (++count == 100) { count=0; SSL_renegotiate(con); } } #endif - BIO_sock_should_retry(k)) + 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"); - continue; - } - if (k <= 0) - { + 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; @@ -610,7 +1115,7 @@ int s; if (i <= 0) break; } } - if (FD_ISSET(s,&readfds)) + if (read_from_sslcon) { if (!SSL_is_init_finished(con)) { @@ -629,25 +1134,34 @@ int s; } else { - i=SSL_read(con,(char *)buf,BUFSIZZ); - if ((i <= 0) && -#ifdef FIONBIO - s_nbio && -#endif - BIO_sock_should_retry(i)) +again: + i=SSL_read(con,(char *)buf,bufsize); + switch (SSL_get_error(con,i)) { + case SSL_ERROR_NONE: +#ifdef CHARSET_EBCDIC + ascii2ebcdic(buf,buf,i); +#endif + write(fileno(stdout),buf, + (unsigned int)i); + if (SSL_pending(con)) goto again; + break; + case SSL_ERROR_WANT_WRITE: + case SSL_ERROR_WANT_READ: + case SSL_ERROR_WANT_X509_LOOKUP: BIO_printf(bio_s_out,"Read BLOCK\n"); - } - else if (i <= 0) - { + 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; } - else - write(fileno(stdout),buf, - (unsigned int)i); } } } @@ -662,15 +1176,15 @@ err: BIO_printf(bio_s_out,"CONNECTION CLOSED\n"); if (buf != NULL) { - memset(buf,0,BUFSIZZ); - Free(buf); + memset(buf,0,bufsize); + OPENSSL_free(buf); } if (ret >= 0) BIO_printf(bio_s_out,"ACCEPT\n"); return(ret); } -static void close_accept_socket() +static void close_accept_socket(void) { BIO_printf(bio_err,"shutdown accept socket\n"); if (accept_socket >= 0) @@ -679,13 +1193,12 @@ static void close_accept_socket() } } -static int init_ssl_connection(con) -SSL *con; +static int init_ssl_connection(SSL *con) { int i; - char *str; + const char *str; X509 *peer; - int verify_error; + long verify_error; MS_STATIC char buf[BUFSIZ]; if ((i=SSL_accept(con)) <= 0) @@ -727,28 +1240,30 @@ SSL *con; str=SSL_CIPHER_get_name(SSL_get_current_cipher(con)); BIO_printf(bio_s_out,"CIPHER is %s\n",(str != NULL)?str:"(NONE)"); if (con->hit) BIO_printf(bio_s_out,"Reused session-id\n"); + if (SSL_ctrl(con,SSL_CTRL_GET_FLAGS,0,NULL) & + TLS1_FLAGS_TLS_PADDING_BUG) + BIO_printf(bio_s_out,"Peer has incorrect TLSv1 block padding\n"); + return(1); } -static DH *load_dh_param() +#ifndef OPENSSL_NO_DH +static DH *load_dh_param(char *dhfile) { DH *ret=NULL; BIO *bio; -#ifndef NO_DH - if ((bio=BIO_new_file(DH_PARAM,"r")) == NULL) + if ((bio=BIO_new_file(dhfile,"r")) == NULL) goto err; - ret=PEM_read_bio_DHparams(bio,NULL,NULL); + ret=PEM_read_bio_DHparams(bio,NULL,NULL,NULL); err: if (bio != NULL) BIO_free(bio); -#endif return(ret); } +#endif #if 0 -static int load_CA(ctx,file) -SSL_CTX *ctx; -char *file; +static int load_CA(SSL_CTX *ctx, char *file) { FILE *in; X509 *x=NULL; @@ -768,18 +1283,19 @@ char *file; } #endif -static int www_body(hostname, s) -char *hostname; -int s; +static int www_body(char *hostname, int s, unsigned char *context) { - char buf[1024]; + char *buf=NULL; int ret=1; int i,j,k,blank,dot; struct stat st_buf; SSL *con; SSL_CIPHER *c; BIO *io,*ssl_bio,*sbio; + long total_bytes; + buf=OPENSSL_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; @@ -787,18 +1303,28 @@ int s; #ifdef FIONBIO if (s_nbio) { - unsigned int long sl=1; + unsigned long sl=1; if (!s_quiet) BIO_printf(bio_err,"turning on non blocking io\n"); - socket_ioctl(s,FIONBIO,&sl); + if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0) + ERR_print_errors(bio_err); } #endif /* lets make the output buffer a reasonable size */ - if (!BIO_set_write_buffer_size(io,16*1024)) goto err; + if (!BIO_set_write_buffer_size(io,bufsize)) goto err; - if ((con=(SSL *)SSL_new(ctx)) == NULL) goto err; + if ((con=SSL_new(ctx)) == NULL) goto err; +#ifndef OPENSSL_NO_KRB5 + if ((con->kssl_ctx = kssl_ctx_new()) != NULL) + { + kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVICE, KRB5SVC); + kssl_ctx_setstring(con->kssl_ctx, KSSL_KEYTAB, KRB5KEYTAB); + } +#endif /* OPENSSL_NO_KRB5 */ + if(context) SSL_set_session_id_context(con, context, + strlen((char *)context)); sbio=BIO_new_socket(s,BIO_NOCLOSE); if (s_nbio_test) @@ -814,6 +1340,9 @@ int s; /* SSL_set_fd(con,s); */ BIO_set_ssl(ssl_bio,con,BIO_CLOSE); BIO_push(io,ssl_bio); +#ifdef CHARSET_EBCDIC + io = BIO_push(BIO_new(BIO_f_ebcdic_filter()),io); +#endif if (s_debug) { @@ -821,6 +1350,11 @@ int s; BIO_set_callback(SSL_get_rbio(con),bio_dump_cb); BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out); } + if (s_msg) + { + SSL_set_msg_callback(con, msg_cb); + SSL_set_msg_callback_arg(con, bio_s_out); + } blank=0; for (;;) @@ -842,14 +1376,14 @@ int s; case SSL_ERROR_ZERO_RETURN: ret=1; goto err; - break; + /* break; */ } SSL_renegotiate(con); SSL_write(con,NULL,0); } - i=BIO_gets(io,buf,sizeof(buf)-1); + i=BIO_gets(io,buf,bufsize-1); if (i < 0) /* error */ { if (!BIO_should_retry(io)) @@ -861,7 +1395,7 @@ int s; else { BIO_printf(bio_s_out,"read R BLOCK\n"); -#ifndef MSDOS +#ifndef OPENSSL_SYS_MSDOS sleep(1); #endif continue; @@ -875,14 +1409,15 @@ int s; /* else we have data */ if ( ((www == 1) && (strncmp("GET ",buf,4) == 0)) || - ((www == 2) && (strncmp("GET stats ",buf,10) == 0))) + ((www == 2) && (strncmp("GET /stats ",buf,10) == 0))) { char *p; X509 *peer; - STACK *sk; - static char *space=" "; + STACK_OF(SSL_CIPHER) *sk; + static char *space=" "; BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n"); + BIO_puts(io,"\n"); BIO_puts(io,"
\n");
 /*			BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/
 			BIO_puts(io,"\n");
@@ -897,18 +1432,18 @@ int s;
 			 * be done */
 			BIO_printf(io,"Ciphers supported in s_server binary\n");
 			sk=SSL_get_ciphers(con);
-			j=sk_num(sk);
+			j=sk_SSL_CIPHER_num(sk);
 			for (i=0; i\r\n\r\n");
 			break;
 			}
-		else if ((www == 2) && (strncmp("GET ",buf,4) == 0))
+		else if ((www == 2 || www == 3)
+                         && (strncmp("GET /",buf,5) == 0))
 			{
 			BIO *file;
 			char *p,*e;
@@ -961,14 +1498,29 @@ int s;
 
 			/* skip the '/' */
 			p= &(buf[5]);
-			dot=0;
+
+			dot = 1;
 			for (e=p; *e != '\0'; e++)
 				{
-				if (e[0] == ' ') break;
-				if (	(e[0] == '.') &&
-					(strncmp(&(e[-1]),"/../",4) == 0))
-					dot=1;
+				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] == '/') ? -1 : 0;
+					break;
+					}
+				if (dot == 0)
+					dot = (e[0] == '/') ? 1 : 0;
 				}
+			dot = (dot == 3) || (dot == -1); /* filename contains ".." component */
 
 			if (*e == '\0')
 				{
@@ -992,9 +1544,11 @@ int s;
 				break;
 				}
 
+#if 0
 			/* append if a directory lookup */
 			if (e[-1] == '/')
 				strcat(p,"index.html");
+#endif
 
 			/* if a directory, do the index thang */
 			if (stat(p,&st_buf) < 0)
@@ -1006,7 +1560,13 @@ int s;
 				}
 			if (S_ISDIR(st_buf.st_mode))
 				{
+#if 0 /* must check buffer size */
 				strcat(p,"/index.html");
+#else
+				BIO_puts(io,text);
+				BIO_printf(io,"'%s' is a directory\r\n",p);
+				break;
+#endif
 				}
 
 			if ((file=BIO_new_file(p,"r")) == NULL)
@@ -1020,26 +1580,44 @@ int s;
 			if (!s_quiet)
 				BIO_printf(bio_err,"FILE:%s\n",p);
 
-			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");
+                        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 */
+			total_bytes=0;
 			for (;;)
 				{
-				i=BIO_read(file,buf,1024);
+				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= 0)
 		BIO_printf(bio_s_out,"ACCEPT\n");
 
+	if (buf != NULL) OPENSSL_free(buf);
 	if (io != NULL) BIO_free_all(io);
-/*	if (ssl_bio != NULL) BIO_free(ssl_bio); */
+/*	if (ssl_bio != NULL) BIO_free(ssl_bio);*/
 	return(ret);
 	}
 
-static RSA MS_CALLBACK *tmp_rsa_cb(s,export)
-SSL *s;
-int export;
+#ifndef OPENSSL_NO_RSA
+static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength)
 	{
 	static RSA *rsa_tmp=NULL;
 
@@ -1096,17 +1676,39 @@ int export;
 		{
 		if (!s_quiet)
 			{
-			BIO_printf(bio_err,"Generating temp (512 bit) RSA key...");
-			BIO_flush(bio_err);
+			BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
+			(void)BIO_flush(bio_err);
 			}
-#ifndef NO_RSA
-		rsa_tmp=RSA_generate_key(512,RSA_F4,NULL);
-#endif
+		rsa_tmp=RSA_generate_key(keylength,RSA_F4,NULL,NULL);
 		if (!s_quiet)
 			{
 			BIO_printf(bio_err,"\n");
-			BIO_flush(bio_err);
+			(void)BIO_flush(bio_err);
 			}
 		}
 	return(rsa_tmp);
 	}
+#endif
+
+#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	{
+		RAND_pseudo_bytes(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;
+	}