diff options
Diffstat (limited to 'crypto/openssl/apps/s_server.c')
-rw-r--r-- | crypto/openssl/apps/s_server.c | 286 |
1 files changed, 233 insertions, 53 deletions
diff --git a/crypto/openssl/apps/s_server.c b/crypto/openssl/apps/s_server.c index 624dfb5..44886c5 100644 --- a/crypto/openssl/apps/s_server.c +++ b/crypto/openssl/apps/s_server.c @@ -55,6 +55,59 @@ * 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 <assert.h> #include <stdio.h> @@ -62,7 +115,8 @@ #include <string.h> #include <sys/types.h> #include <sys/stat.h> -#ifdef NO_STDIO +#include <openssl/e_os2.h> +#ifdef OPENSSL_NO_STDIO #define APPS_WIN16 #endif @@ -70,7 +124,7 @@ 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(VMS) && defined(__DECC) && !defined(__U_INT) +#if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT) #define __U_INT typedef unsigned int u_int; #endif @@ -86,16 +140,24 @@ typedef unsigned int u_int; #include <openssl/rand.h> #include "s_apps.h" -#ifdef WINDOWS +#ifdef OPENSSL_SYS_WINDOWS #include <conio.h> #endif -#if (defined(VMS) && __VMS_VER < 70000000) +#ifdef OPENSSL_SYS_WINCE +/* Windows CE incorrectly defines fileno as returning void*, so to avoid problems below... */ +#ifdef fileno +#undef fileno +#endif +#define fileno(a) (int)_fileno(a) +#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 NO_RSA +#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); @@ -104,7 +166,9 @@ 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); -#ifndef NO_DH +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); #endif @@ -120,7 +184,7 @@ static void s_server_init(void); # endif #endif -#ifndef NO_DH +#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, @@ -174,9 +238,12 @@ 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 int hack=0; +static char *engine_id=NULL; +static const char *session_id_prefix=NULL; #ifdef MONOLITH static void s_server_init(void) @@ -197,8 +264,10 @@ static void s_server_init(void) bio_s_out=NULL; s_debug=0; + s_msg=0; s_quiet=0; hack=0; + engine_id=NULL; } #endif @@ -224,11 +293,13 @@ static void sv_usage(void) 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 - 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"); @@ -237,12 +308,16 @@ static void sv_usage(void) 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 NO_DH +#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 - 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," -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); } @@ -253,10 +328,10 @@ static char **local_argv; 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_write(BIO *b, const char *in, int inl); +static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr); static int ebcdic_gets(BIO *bp, char *buf, int size); -static int ebcdic_puts(BIO *bp, char *str); +static int ebcdic_puts(BIO *bp, const char *str); #define BIO_TYPE_EBCDIC_FILTER (18|0x0200) static BIO_METHOD methods_ebcdic= @@ -321,7 +396,7 @@ static int ebcdic_read(BIO *b, char *out, int outl) return(ret); } -static int ebcdic_write(BIO *b, char *in, int inl) +static int ebcdic_write(BIO *b, const char *in, int inl) { EBCDIC_OUTBUFF *wbuf; int ret=0; @@ -354,7 +429,7 @@ static int ebcdic_write(BIO *b, char *in, int inl) return(ret); } -static long ebcdic_ctrl(BIO *b, int cmd, long num, char *ptr) +static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr) { long ret; @@ -373,7 +448,7 @@ static long ebcdic_ctrl(BIO *b, int cmd, long num, char *ptr) static int ebcdic_gets(BIO *bp, char *buf, int size) { - int i, ret; + int i, ret=0; if (bp->next_bio == NULL) return(0); /* return(BIO_gets(bp->next_bio,buf,size));*/ for (i=0; i<size-1; ++i) @@ -392,7 +467,7 @@ static int ebcdic_gets(BIO *bp, char *buf, int size) return (ret < 0 && i == 0) ? ret : i; } -static int ebcdic_puts(BIO *bp, char *str) +static int ebcdic_puts(BIO *bp, const char *str) { if (bp->next_bio == NULL) return(0); return ebcdic_write(bp, str, strlen(str)); @@ -403,6 +478,8 @@ 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; @@ -413,16 +490,14 @@ int MAIN(int argc, char *argv[]) int no_tmp_rsa=0,no_dhe=0,nocert=0; int state=0; SSL_METHOD *meth=NULL; + ENGINE *e=NULL; char *inrand=NULL; -#ifndef NO_DH - DH *dh=NULL; -#endif -#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 @@ -437,6 +512,9 @@ int MAIN(int argc, char *argv[]) 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; @@ -509,6 +587,16 @@ int MAIN(int argc, 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; @@ -532,6 +620,8 @@ int MAIN(int argc, 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) @@ -550,24 +640,36 @@ int MAIN(int argc, char *argv[]) { 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; } -#ifndef NO_SSL2 +#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 NO_TLS1 +#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; @@ -589,6 +691,11 @@ bad: goto end; } + SSL_load_error_strings(); + OpenSSL_add_ssl_algorithms(); + + e = setup_engine(bio_err, engine_id, 1); + if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL && !RAND_status()) { @@ -600,7 +707,7 @@ bad: 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()); } @@ -611,7 +718,7 @@ bad: } } -#if !defined(NO_RSA) || !defined(NO_DSA) +#if !defined(OPENSSL_NO_RSA) || !defined(OPENSSL_NO_DSA) if (nocert) #endif { @@ -621,21 +728,32 @@ bad: s_dkey_file=NULL; } - SSL_load_error_strings(); - OpenSSL_add_ssl_algorithms(); - ctx=SSL_CTX_new(meth); if (ctx == NULL) { 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); SSL_CTX_set_options(ctx,off); - if (hack) SSL_CTX_set_options(ctx,SSL_OP_NON_EXPORT_FIRST); if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback); @@ -660,11 +778,19 @@ bad: ERR_print_errors(bio_err); /* goto end; */ } + store = SSL_CTX_get_cert_store(ctx); + X509_STORE_set_flags(store, vflags); -#ifndef NO_DH +#ifndef OPENSSL_NO_DH if (!no_dhe) { - dh=load_dh_param(dhfile ? dhfile : s_cert_file); + 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"); @@ -689,7 +815,7 @@ bad: goto end; } -#ifndef NO_RSA +#ifndef OPENSSL_NO_RSA #if 1 if (!no_tmp_rsa) SSL_CTX_set_tmp_rsa_callback(ctx,tmp_rsa_cb); @@ -741,7 +867,8 @@ end: BIO_free(bio_s_out); bio_s_out=NULL; } - EXIT(ret); + apps_shutdown(); + OPENSSL_EXIT(ret); } static void print_stats(BIO *bio, SSL_CTX *ssl_ctx) @@ -778,7 +905,7 @@ static int sv_body(char *hostname, int s, unsigned char *context) unsigned long l; SSL *con=NULL; BIO *sbio; -#ifdef WINDOWS +#ifdef OPENSSL_SYS_WINDOWS struct timeval tv; #endif @@ -801,6 +928,15 @@ static int sv_body(char *hostname, int s, unsigned char *context) 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)); @@ -825,6 +961,11 @@ static int sv_body(char *hostname, int s, unsigned char *context) 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 (;;) @@ -838,7 +979,7 @@ static int sv_body(char *hostname, int s, unsigned char *context) if (!read_from_sslcon) { FD_ZERO(&readfds); -#ifndef WINDOWS +#ifndef OPENSSL_SYS_WINDOWS FD_SET(fileno(stdin),&readfds); #endif FD_SET(s,&readfds); @@ -848,7 +989,7 @@ static int sv_body(char *hostname, int s, unsigned char *context) * the compiler: if you do have a cast then you can either * go for (int *) or (void *). */ -#ifdef WINDOWS +#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 @@ -1043,7 +1184,7 @@ err: BIO_printf(bio_s_out,"CONNECTION CLOSED\n"); if (buf != NULL) { - memset(buf,0,bufsize); + OPENSSL_cleanse(buf,bufsize); OPENSSL_free(buf); } if (ret >= 0) @@ -1095,14 +1236,14 @@ static int init_ssl_connection(SSL *con) { 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,BUFSIZ); + 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,BUFSIZ); + 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,BUFSIZ) != NULL) + 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)"); @@ -1114,7 +1255,7 @@ static int init_ssl_connection(SSL *con) return(1); } -#ifndef NO_DH +#ifndef OPENSSL_NO_DH static DH *load_dh_param(char *dhfile) { DH *ret=NULL; @@ -1183,6 +1324,13 @@ static int www_body(char *hostname, int s, unsigned char *context) if (!BIO_set_write_buffer_size(io,bufsize)) 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)); @@ -1210,6 +1358,11 @@ static int www_body(char *hostname, int s, unsigned char *context) 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 (;;) @@ -1250,7 +1403,7 @@ static int www_body(char *hostname, int s, unsigned char *context) else { BIO_printf(bio_s_out,"read R BLOCK\n"); -#ifndef MSDOS +#if !defined(OPENSSL_SYS_MSDOS) && !defined(__DJGPP__) sleep(1); #endif continue; @@ -1344,7 +1497,8 @@ static int www_body(char *hostname, int s, unsigned char *context) BIO_puts(io,"</BODY></HTML>\r\n\r\n"); break; } - else if ((www == 2) && (strncmp("GET /",buf,5) == 0)) + else if ((www == 2 || www == 3) + && (strncmp("GET /",buf,5) == 0)) { BIO *file; char *p,*e; @@ -1434,13 +1588,16 @@ static int www_body(char *hostname, int s, unsigned char *context) 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 (;;) @@ -1518,7 +1675,7 @@ err: return(ret); } -#ifndef NO_RSA +#ifndef OPENSSL_NO_RSA static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength) { static RSA *rsa_tmp=NULL; @@ -1540,3 +1697,26 @@ static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength) 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; + } |