diff options
author | marha <marha@users.sourceforge.net> | 2009-06-28 22:07:26 +0000 |
---|---|---|
committer | marha <marha@users.sourceforge.net> | 2009-06-28 22:07:26 +0000 |
commit | 3562e78743202e43aec8727005182a2558117eca (patch) | |
tree | 8f9113a77d12470c5c851a2a8e4cb02e89df7d43 /openssl/ssl/s23_clnt.c | |
download | vcxsrv-3562e78743202e43aec8727005182a2558117eca.tar.gz vcxsrv-3562e78743202e43aec8727005182a2558117eca.tar.bz2 vcxsrv-3562e78743202e43aec8727005182a2558117eca.zip |
Checked in the following released items:
xkeyboard-config-1.4.tar.gz
ttf-bitstream-vera-1.10.tar.gz
font-alias-1.0.1.tar.gz
font-sun-misc-1.0.0.tar.gz
font-sun-misc-1.0.0.tar.gz
font-sony-misc-1.0.0.tar.gz
font-schumacher-misc-1.0.0.tar.gz
font-mutt-misc-1.0.0.tar.gz
font-misc-misc-1.0.0.tar.gz
font-misc-meltho-1.0.0.tar.gz
font-micro-misc-1.0.0.tar.gz
font-jis-misc-1.0.0.tar.gz
font-isas-misc-1.0.0.tar.gz
font-dec-misc-1.0.0.tar.gz
font-daewoo-misc-1.0.0.tar.gz
font-cursor-misc-1.0.0.tar.gz
font-arabic-misc-1.0.0.tar.gz
font-winitzki-cyrillic-1.0.0.tar.gz
font-misc-cyrillic-1.0.0.tar.gz
font-cronyx-cyrillic-1.0.0.tar.gz
font-screen-cyrillic-1.0.1.tar.gz
font-xfree86-type1-1.0.1.tar.gz
font-adobe-utopia-type1-1.0.1.tar.gz
font-ibm-type1-1.0.0.tar.gz
font-bitstream-type1-1.0.0.tar.gz
font-bitstream-speedo-1.0.0.tar.gz
font-bh-ttf-1.0.0.tar.gz
font-bh-type1-1.0.0.tar.gz
font-bitstream-100dpi-1.0.0.tar.gz
font-bh-lucidatypewriter-100dpi-1.0.0.tar.gz
font-bh-100dpi-1.0.0.tar.gz
font-adobe-utopia-100dpi-1.0.1.tar.gz
font-adobe-100dpi-1.0.0.tar.gz
font-util-1.0.1.tar.gz
font-bitstream-75dpi-1.0.0.tar.gz
font-bh-lucidatypewriter-75dpi-1.0.0.tar.gz
font-adobe-utopia-75dpi-1.0.1.tar.gz
font-bh-75dpi-1.0.0.tar.gz
bdftopcf-1.0.1.tar.gz
font-adobe-75dpi-1.0.0.tar.gz
mkfontscale-1.0.6.tar.gz
openssl-0.9.8k.tar.gz
bigreqsproto-1.0.2.tar.gz
xtrans-1.2.2.tar.gz
resourceproto-1.0.2.tar.gz
inputproto-1.4.4.tar.gz
compositeproto-0.4.tar.gz
damageproto-1.1.0.tar.gz
zlib-1.2.3.tar.gz
xkbcomp-1.0.5.tar.gz
freetype-2.3.9.tar.gz
pthreads-w32-2-8-0-release.tar.gz
pixman-0.12.0.tar.gz
kbproto-1.0.3.tar.gz
evieext-1.0.2.tar.gz
fixesproto-4.0.tar.gz
recordproto-1.13.2.tar.gz
randrproto-1.2.2.tar.gz
scrnsaverproto-1.1.0.tar.gz
renderproto-0.9.3.tar.gz
xcmiscproto-1.1.2.tar.gz
fontsproto-2.0.2.tar.gz
xextproto-7.0.3.tar.gz
xproto-7.0.14.tar.gz
libXdmcp-1.0.2.tar.gz
libxkbfile-1.0.5.tar.gz
libfontenc-1.0.4.tar.gz
libXfont-1.3.4.tar.gz
libX11-1.1.5.tar.gz
libXau-1.0.4.tar.gz
libxcb-1.1.tar.gz
xorg-server-1.5.3.tar.gz
Diffstat (limited to 'openssl/ssl/s23_clnt.c')
-rw-r--r-- | openssl/ssl/s23_clnt.c | 615 |
1 files changed, 615 insertions, 0 deletions
diff --git a/openssl/ssl/s23_clnt.c b/openssl/ssl/s23_clnt.c new file mode 100644 index 000000000..bc918170e --- /dev/null +++ b/openssl/ssl/s23_clnt.c @@ -0,0 +1,615 @@ +/* ssl/s23_clnt.c */ +/* 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.] + */ + +#include <stdio.h> +#include "ssl_locl.h" +#include <openssl/buffer.h> +#include <openssl/rand.h> +#include <openssl/objects.h> +#include <openssl/evp.h> + +static SSL_METHOD *ssl23_get_client_method(int ver); +static int ssl23_client_hello(SSL *s); +static int ssl23_get_server_hello(SSL *s); +static SSL_METHOD *ssl23_get_client_method(int ver) + { +#ifndef OPENSSL_NO_SSL2 + if (ver == SSL2_VERSION) + return(SSLv2_client_method()); +#endif + if (ver == SSL3_VERSION) + return(SSLv3_client_method()); + else if (ver == TLS1_VERSION) + return(TLSv1_client_method()); + else + return(NULL); + } + +IMPLEMENT_ssl23_meth_func(SSLv23_client_method, + ssl_undefined_function, + ssl23_connect, + ssl23_get_client_method) + +int ssl23_connect(SSL *s) + { + BUF_MEM *buf=NULL; + unsigned long Time=(unsigned long)time(NULL); + void (*cb)(const SSL *ssl,int type,int val)=NULL; + int ret= -1; + int new_state,state; + + RAND_add(&Time,sizeof(Time),0); + ERR_clear_error(); + clear_sys_error(); + + if (s->info_callback != NULL) + cb=s->info_callback; + else if (s->ctx->info_callback != NULL) + cb=s->ctx->info_callback; + + s->in_handshake++; + if (!SSL_in_init(s) || SSL_in_before(s)) SSL_clear(s); + + for (;;) + { + state=s->state; + + switch(s->state) + { + case SSL_ST_BEFORE: + case SSL_ST_CONNECT: + case SSL_ST_BEFORE|SSL_ST_CONNECT: + case SSL_ST_OK|SSL_ST_CONNECT: + + if (s->session != NULL) + { + SSLerr(SSL_F_SSL23_CONNECT,SSL_R_SSL23_DOING_SESSION_ID_REUSE); + ret= -1; + goto end; + } + s->server=0; + if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_START,1); + + /* s->version=TLS1_VERSION; */ + s->type=SSL_ST_CONNECT; + + if (s->init_buf == NULL) + { + if ((buf=BUF_MEM_new()) == NULL) + { + ret= -1; + goto end; + } + if (!BUF_MEM_grow(buf,SSL3_RT_MAX_PLAIN_LENGTH)) + { + ret= -1; + goto end; + } + s->init_buf=buf; + buf=NULL; + } + + if (!ssl3_setup_buffers(s)) { ret= -1; goto end; } + + ssl3_init_finished_mac(s); + + s->state=SSL23_ST_CW_CLNT_HELLO_A; + s->ctx->stats.sess_connect++; + s->init_num=0; + break; + + case SSL23_ST_CW_CLNT_HELLO_A: + case SSL23_ST_CW_CLNT_HELLO_B: + + s->shutdown=0; + ret=ssl23_client_hello(s); + if (ret <= 0) goto end; + s->state=SSL23_ST_CR_SRVR_HELLO_A; + s->init_num=0; + + break; + + case SSL23_ST_CR_SRVR_HELLO_A: + case SSL23_ST_CR_SRVR_HELLO_B: + ret=ssl23_get_server_hello(s); + if (ret >= 0) cb=NULL; + goto end; + /* break; */ + + default: + SSLerr(SSL_F_SSL23_CONNECT,SSL_R_UNKNOWN_STATE); + ret= -1; + goto end; + /* break; */ + } + + if (s->debug) { (void)BIO_flush(s->wbio); } + + if ((cb != NULL) && (s->state != state)) + { + new_state=s->state; + s->state=state; + cb(s,SSL_CB_CONNECT_LOOP,1); + s->state=new_state; + } + } +end: + s->in_handshake--; + if (buf != NULL) + BUF_MEM_free(buf); + if (cb != NULL) + cb(s,SSL_CB_CONNECT_EXIT,ret); + return(ret); + } + + +static int ssl23_client_hello(SSL *s) + { + unsigned char *buf; + unsigned char *p,*d; + int i,j,ch_len; + unsigned long Time,l; + int ssl2_compat; + int version = 0, version_major, version_minor; + SSL_COMP *comp; + int ret; + + ssl2_compat = (s->options & SSL_OP_NO_SSLv2) ? 0 : 1; + + if (!(s->options & SSL_OP_NO_TLSv1)) + { + version = TLS1_VERSION; + } + else if (!(s->options & SSL_OP_NO_SSLv3)) + { + version = SSL3_VERSION; + } + else if (!(s->options & SSL_OP_NO_SSLv2)) + { + version = SSL2_VERSION; + } +#ifndef OPENSSL_NO_TLSEXT + if (version != SSL2_VERSION) + { + /* have to disable SSL 2.0 compatibility if we need TLS extensions */ + + if (s->tlsext_hostname != NULL) + ssl2_compat = 0; + if (s->tlsext_status_type != -1) + ssl2_compat = 0; + } +#endif + + buf=(unsigned char *)s->init_buf->data; + if (s->state == SSL23_ST_CW_CLNT_HELLO_A) + { +#if 0 + /* don't reuse session-id's */ + if (!ssl_get_new_session(s,0)) + { + return(-1); + } +#endif + + p=s->s3->client_random; + Time=(unsigned long)time(NULL); /* Time */ + l2n(Time,p); + if (RAND_pseudo_bytes(p,SSL3_RANDOM_SIZE-4) <= 0) + return -1; + + if (version == TLS1_VERSION) + { + version_major = TLS1_VERSION_MAJOR; + version_minor = TLS1_VERSION_MINOR; + } +#ifdef OPENSSL_FIPS + else if(FIPS_mode()) + { + SSLerr(SSL_F_SSL23_CLIENT_HELLO, + SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE); + return -1; + } +#endif + else if (version == SSL3_VERSION) + { + version_major = SSL3_VERSION_MAJOR; + version_minor = SSL3_VERSION_MINOR; + } + else if (version == SSL2_VERSION) + { + version_major = SSL2_VERSION_MAJOR; + version_minor = SSL2_VERSION_MINOR; + } + else + { + SSLerr(SSL_F_SSL23_CLIENT_HELLO,SSL_R_NO_PROTOCOLS_AVAILABLE); + return(-1); + } + + s->client_version = version; + + if (ssl2_compat) + { + /* create SSL 2.0 compatible Client Hello */ + + /* two byte record header will be written last */ + d = &(buf[2]); + p = d + 9; /* leave space for message type, version, individual length fields */ + + *(d++) = SSL2_MT_CLIENT_HELLO; + *(d++) = version_major; + *(d++) = version_minor; + + /* Ciphers supported */ + i=ssl_cipher_list_to_bytes(s,SSL_get_ciphers(s),p,0); + if (i == 0) + { + /* no ciphers */ + SSLerr(SSL_F_SSL23_CLIENT_HELLO,SSL_R_NO_CIPHERS_AVAILABLE); + return -1; + } + s2n(i,d); + p+=i; + + /* put in the session-id length (zero since there is no reuse) */ +#if 0 + s->session->session_id_length=0; +#endif + s2n(0,d); + + if (s->options & SSL_OP_NETSCAPE_CHALLENGE_BUG) + ch_len=SSL2_CHALLENGE_LENGTH; + else + ch_len=SSL2_MAX_CHALLENGE_LENGTH; + + /* write out sslv2 challenge */ + if (SSL3_RANDOM_SIZE < ch_len) + i=SSL3_RANDOM_SIZE; + else + i=ch_len; + s2n(i,d); + memset(&(s->s3->client_random[0]),0,SSL3_RANDOM_SIZE); + if (RAND_pseudo_bytes(&(s->s3->client_random[SSL3_RANDOM_SIZE-i]),i) <= 0) + return -1; + + memcpy(p,&(s->s3->client_random[SSL3_RANDOM_SIZE-i]),i); + p+=i; + + i= p- &(buf[2]); + buf[0]=((i>>8)&0xff)|0x80; + buf[1]=(i&0xff); + + /* number of bytes to write */ + s->init_num=i+2; + s->init_off=0; + + ssl3_finish_mac(s,&(buf[2]),i); + } + else + { + /* create Client Hello in SSL 3.0/TLS 1.0 format */ + + /* do the record header (5 bytes) and handshake message header (4 bytes) last */ + d = p = &(buf[9]); + + *(p++) = version_major; + *(p++) = version_minor; + + /* Random stuff */ + memcpy(p, s->s3->client_random, SSL3_RANDOM_SIZE); + p += SSL3_RANDOM_SIZE; + + /* Session ID (zero since there is no reuse) */ + *(p++) = 0; + + /* Ciphers supported (using SSL 3.0/TLS 1.0 format) */ + i=ssl_cipher_list_to_bytes(s,SSL_get_ciphers(s),&(p[2]),ssl3_put_cipher_by_char); + if (i == 0) + { + SSLerr(SSL_F_SSL23_CLIENT_HELLO,SSL_R_NO_CIPHERS_AVAILABLE); + return -1; + } + s2n(i,p); + p+=i; + + /* COMPRESSION */ + if (s->ctx->comp_methods == NULL) + j=0; + else + j=sk_SSL_COMP_num(s->ctx->comp_methods); + *(p++)=1+j; + for (i=0; i<j; i++) + { + comp=sk_SSL_COMP_value(s->ctx->comp_methods,i); + *(p++)=comp->id; + } + *(p++)=0; /* Add the NULL method */ +#ifndef OPENSSL_NO_TLSEXT + if ((p = ssl_add_clienthello_tlsext(s, p, buf+SSL3_RT_MAX_PLAIN_LENGTH)) == NULL) + { + SSLerr(SSL_F_SSL23_CLIENT_HELLO,ERR_R_INTERNAL_ERROR); + return -1; + } +#endif + + l = p-d; + *p = 42; + + /* fill in 4-byte handshake header */ + d=&(buf[5]); + *(d++)=SSL3_MT_CLIENT_HELLO; + l2n3(l,d); + + l += 4; + + if (l > SSL3_RT_MAX_PLAIN_LENGTH) + { + SSLerr(SSL_F_SSL23_CLIENT_HELLO,ERR_R_INTERNAL_ERROR); + return -1; + } + + /* fill in 5-byte record header */ + d=buf; + *(d++) = SSL3_RT_HANDSHAKE; + *(d++) = version_major; + *(d++) = version_minor; /* arguably we should send the *lowest* suported version here + * (indicating, e.g., TLS 1.0 in "SSL 3.0 format") */ + s2n((int)l,d); + + /* number of bytes to write */ + s->init_num=p-buf; + s->init_off=0; + + ssl3_finish_mac(s,&(buf[5]), s->init_num - 5); + } + + s->state=SSL23_ST_CW_CLNT_HELLO_B; + s->init_off=0; + } + + /* SSL3_ST_CW_CLNT_HELLO_B */ + ret = ssl23_write_bytes(s); + + if ((ret >= 2) && s->msg_callback) + { + /* Client Hello has been sent; tell msg_callback */ + + if (ssl2_compat) + s->msg_callback(1, SSL2_VERSION, 0, s->init_buf->data+2, ret-2, s, s->msg_callback_arg); + else + s->msg_callback(1, version, SSL3_RT_HANDSHAKE, s->init_buf->data+5, ret-5, s, s->msg_callback_arg); + } + + return ret; + } + +static int ssl23_get_server_hello(SSL *s) + { + char buf[8]; + unsigned char *p; + int i; + int n; + + n=ssl23_read_bytes(s,7); + + if (n != 7) return(n); + p=s->packet; + + memcpy(buf,p,n); + + if ((p[0] & 0x80) && (p[2] == SSL2_MT_SERVER_HELLO) && + (p[5] == 0x00) && (p[6] == 0x02)) + { +#ifdef OPENSSL_NO_SSL2 + SSLerr(SSL_F_SSL23_GET_SERVER_HELLO,SSL_R_UNSUPPORTED_PROTOCOL); + goto err; +#else + /* we are talking sslv2 */ + /* we need to clean up the SSLv3 setup and put in the + * sslv2 stuff. */ + int ch_len; + + if (s->options & SSL_OP_NO_SSLv2) + { + SSLerr(SSL_F_SSL23_GET_SERVER_HELLO,SSL_R_UNSUPPORTED_PROTOCOL); + goto err; + } + if (s->s2 == NULL) + { + if (!ssl2_new(s)) + goto err; + } + else + ssl2_clear(s); + + if (s->options & SSL_OP_NETSCAPE_CHALLENGE_BUG) + ch_len=SSL2_CHALLENGE_LENGTH; + else + ch_len=SSL2_MAX_CHALLENGE_LENGTH; + + /* write out sslv2 challenge */ + i=(SSL3_RANDOM_SIZE < ch_len) + ?SSL3_RANDOM_SIZE:ch_len; + s->s2->challenge_length=i; + memcpy(s->s2->challenge, + &(s->s3->client_random[SSL3_RANDOM_SIZE-i]),i); + + if (s->s3 != NULL) ssl3_free(s); + + if (!BUF_MEM_grow_clean(s->init_buf, + SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER)) + { + SSLerr(SSL_F_SSL23_GET_SERVER_HELLO,ERR_R_BUF_LIB); + goto err; + } + + s->state=SSL2_ST_GET_SERVER_HELLO_A; + if (!(s->client_version == SSL2_VERSION)) + /* use special padding (SSL 3.0 draft/RFC 2246, App. E.2) */ + s->s2->ssl2_rollback=1; + + /* setup the 5 bytes we have read so we get them from + * the sslv2 buffer */ + s->rstate=SSL_ST_READ_HEADER; + s->packet_length=n; + s->packet= &(s->s2->rbuf[0]); + memcpy(s->packet,buf,n); + s->s2->rbuf_left=n; + s->s2->rbuf_offs=0; + + /* we have already written one */ + s->s2->write_sequence=1; + + s->method=SSLv2_client_method(); + s->handshake_func=s->method->ssl_connect; +#endif + } + else if ((p[0] == SSL3_RT_HANDSHAKE) && + (p[1] == SSL3_VERSION_MAJOR) && + ((p[2] == SSL3_VERSION_MINOR) || + (p[2] == TLS1_VERSION_MINOR)) && + (p[5] == SSL3_MT_SERVER_HELLO)) + { + /* we have sslv3 or tls1 */ + + if (!ssl_init_wbio_buffer(s,1)) goto err; + + /* we are in this state */ + s->state=SSL3_ST_CR_SRVR_HELLO_A; + + /* put the 5 bytes we have read into the input buffer + * for SSLv3 */ + s->rstate=SSL_ST_READ_HEADER; + s->packet_length=n; + s->packet= &(s->s3->rbuf.buf[0]); + memcpy(s->packet,buf,n); + s->s3->rbuf.left=n; + s->s3->rbuf.offset=0; + + if ((p[2] == SSL3_VERSION_MINOR) && + !(s->options & SSL_OP_NO_SSLv3)) + { +#ifdef OPENSSL_FIPS + if(FIPS_mode()) + { + SSLerr(SSL_F_SSL23_GET_SERVER_HELLO, + SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE); + goto err; + } +#endif + s->version=SSL3_VERSION; + s->method=SSLv3_client_method(); + } + else if ((p[2] == TLS1_VERSION_MINOR) && + !(s->options & SSL_OP_NO_TLSv1)) + { + s->version=TLS1_VERSION; + s->method=TLSv1_client_method(); + } + else + { + SSLerr(SSL_F_SSL23_GET_SERVER_HELLO,SSL_R_UNSUPPORTED_PROTOCOL); + goto err; + } + + s->handshake_func=s->method->ssl_connect; + } + else if ((p[0] == SSL3_RT_ALERT) && + (p[1] == SSL3_VERSION_MAJOR) && + ((p[2] == SSL3_VERSION_MINOR) || + (p[2] == TLS1_VERSION_MINOR)) && + (p[3] == 0) && + (p[4] == 2)) + { + void (*cb)(const SSL *ssl,int type,int val)=NULL; + int j; + + /* An alert */ + if (s->info_callback != NULL) + cb=s->info_callback; + else if (s->ctx->info_callback != NULL) + cb=s->ctx->info_callback; + + i=p[5]; + if (cb != NULL) + { + j=(i<<8)|p[6]; + cb(s,SSL_CB_READ_ALERT,j); + } + + s->rwstate=SSL_NOTHING; + SSLerr(SSL_F_SSL23_GET_SERVER_HELLO,SSL_AD_REASON_OFFSET+p[6]); + goto err; + } + else + { + SSLerr(SSL_F_SSL23_GET_SERVER_HELLO,SSL_R_UNKNOWN_PROTOCOL); + goto err; + } + s->init_num=0; + + /* Since, if we are sending a ssl23 client hello, we are not + * reusing a session-id */ + if (!ssl_get_new_session(s,0)) + goto err; + + return(SSL_connect(s)); +err: + return(-1); + } + |