summaryrefslogtreecommitdiffstats
path: root/ssl/zz
diff options
context:
space:
mode:
Diffstat (limited to 'ssl/zz')
-rw-r--r--ssl/zz402
1 files changed, 402 insertions, 0 deletions
diff --git a/ssl/zz b/ssl/zz
new file mode 100644
index 0000000000..47c570ec80
--- /dev/null
+++ b/ssl/zz
@@ -0,0 +1,402 @@
+/* ssl/s23_srvr.c */
+/* Copyright (C) 1995-1997 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 "buffer.h"
+#include "rand.h"
+#include "objects.h"
+#include "evp.h"
+#include "ssl_locl.h"
+
+#define BREAK break
+
+#ifndef NOPROTO
+int ssl23_get_client_hello(SSL *s);
+#else
+int ssl23_get_client_hello();
+#endif
+
+static SSL_METHOD *ssl23_get_server_method(ver)
+int ver;
+ {
+ if (ver == 2)
+ return(SSLv2_server_method());
+ else if (ver == 3)
+ return(SSLv3_server_method());
+ else
+ return(NULL);
+ }
+
+SSL_METHOD *SSLv23_server_method()
+ {
+ static int init=1;
+ static SSL_METHOD SSLv23_server_data;
+
+ if (init)
+ {
+ init=0;
+ memcpy((char *)&SSLv23_server_data,
+ (char *)sslv23_base_method(),sizeof(SSL_METHOD));
+ SSLv23_server_data.ssl_accept=ssl23_accept;
+ SSLv23_server_data.get_ssl_method=ssl23_get_server_method;
+ }
+ return(&SSLv23_server_data);
+ }
+
+int ssl23_accept(s)
+SSL *s;
+ {
+ BUF_MEM *buf;
+ unsigned long Time=time(NULL);
+ void (*cb)()=NULL;
+ int ret= -1;
+ int new_state,state;
+
+ RAND_seed((unsigned char *)&Time,sizeof(Time));
+ ERR_clear_error();
+ errno=0;
+
+ if (s->info_callback != NULL)
+ cb=s->info_callback;
+ else if (s->ctx->info_callback != NULL)
+ cb=s->ctx->info_callback;
+
+ if (!SSL_in_init(s) || SSL_in_before(s)) SSL_clear(s);
+ s->in_handshake++;
+
+ for (;;)
+ {
+ state=s->state;
+
+ switch(s->state)
+ {
+ case SSL_ST_BEFORE:
+ case SSL_ST_ACCEPT:
+ case SSL_ST_BEFORE|SSL_ST_ACCEPT:
+ case SSL_ST_OK|SSL_ST_ACCEPT:
+
+ if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_START,1);
+
+ s->version=3;
+ s->type=SSL_ST_ACCEPT;
+
+ 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;
+ }
+
+ ssl3_init_finished_mac(s);
+
+ s->state=SSL23_ST_SR_CLNT_HELLO_A;
+ s->ctx->sess_accept++;
+ s->init_num=0;
+ break;
+
+ case SSL23_ST_SR_CLNT_HELLO_A:
+ case SSL23_ST_SR_CLNT_HELLO_B:
+
+ s->shutdown=0;
+ ret=ssl23_get_client_hello(s);
+ if (ret >= 0) cb=NULL;
+ goto end;
+ break;
+
+ default:
+ SSLerr(SSL_F_SSL23_ACCEPT,SSL_R_UNKNOWN_STATE);
+ ret= -1;
+ goto end;
+ /* break; */
+ }
+
+ if ((cb != NULL) && (s->state != state))
+ {
+ new_state=s->state;
+ s->state=state;
+ cb(s,SSL_CB_ACCEPT_LOOP,1);
+ s->state=new_state;
+ }
+ }
+end:
+ if (cb != NULL)
+ cb(s,SSL_CB_ACCEPT_EXIT,ret);
+ s->in_handshake--;
+ return(ret);
+ }
+
+
+int ssl23_get_client_hello(s)
+SSL *s;
+ {
+ char buf[8];
+ unsigned char *p,*d,*dd;
+ unsigned int i;
+ unsigned int csl,sil,cl;
+ int n=0,j;
+ BIO *bbio;
+ int type=0;
+
+ /* read the initial header */
+ if (s->state == SSL23_ST_SR_CLNT_HELLO_A)
+ {
+ if (!ssl3_setup_buffers(s)) goto err;
+
+ 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_CLIENT_HELLO))
+ {
+ /* SSLv2 header */
+ if ((p[3] == 0x00) && (p[4] == 0x02))
+ {
+ /* SSLv2 */
+ type=1;
+ }
+ else if ((p[3] == SSL3_VERSION_MAJOR) &&
+ (p[4] == SSL3_VERSION_MINOR))
+ {
+ /* SSLv3 */
+ s->state=SSL23_ST_SR_CLNT_HELLO_B;
+ }
+ }
+ else if ((p[0] == SSL3_RT_HANDSHAKE) &&
+ (p[1] == SSL3_VERSION_MAJOR) &&
+ (p[2] == SSL3_VERSION_MINOR) &&
+ (p[5] == SSL3_MT_CLIENT_HELLO))
+ {
+ /* true SSLv3 */
+ type=3;
+ }
+ }
+
+ if (s->state == SSL23_ST_SR_CLNT_HELLO_B)
+ {
+ /* we have a SSLv3 in a SSLv2 header */
+ type=2;
+ p=s->packet;
+ n=((p[0]&0x7f)<<8)|p[1];
+ if (n > (1024*4))
+ {
+ SSLerr(SSL_F_SSL23_GET_CLIENT_HELLO,SSL_R_RECORD_TOO_LARGE);
+ goto err;
+ }
+
+ j=ssl23_read_bytes(s,n+2);
+ if (j <= 0) return(j);
+
+ ssl3_finish_mac(s,&(s->packet[2]),s->packet_length-2);
+
+ p=s->packet;
+ p+=5;
+ n2s(p,csl);
+ n2s(p,sil);
+ n2s(p,cl);
+ d=(unsigned char *)s->init_buf->data;
+ if ((csl+sil+cl+11) != s->packet_length)
+ {
+ SSLerr(SSL_F_SSL23_GET_CLIENT_HELLO,SSL_R_RECORD_LENGTH_MISMATCH);
+ goto err;
+ }
+
+ *(d++)=SSL3_VERSION_MAJOR;
+ *(d++)=SSL3_VERSION_MINOR;
+
+ /* lets populate the random area */
+ /* get the chalenge_length */
+ i=(cl > SSL3_RANDOM_SIZE)?SSL3_RANDOM_SIZE:cl;
+ memset(d,0,SSL3_RANDOM_SIZE);
+ memcpy(&(d[SSL3_RANDOM_SIZE-i]),&(p[csl+sil]),i);
+ d+=SSL3_RANDOM_SIZE;
+
+ /* no session-id reuse */
+ *(d++)=0;
+
+ /* ciphers */
+ j=0;
+ dd=d;
+ d+=2;
+ for (i=0; i<csl; i+=3)
+ {
+ if (p[i] != 0) continue;
+ *(d++)=p[i+1];
+ *(d++)=p[i+2];
+ j+=2;
+ }
+ s2n(j,dd);
+
+ /* compression */
+ *(d++)=1;
+ *(d++)=0;
+
+ i=(d-(unsigned char *)s->init_buf->data);
+
+ /* get the data reused from the init_buf */
+ s->s3->tmp.reuse_message=1;
+ s->s3->tmp.message_type=SSL3_MT_CLIENT_HELLO;
+ s->s3->tmp.message_size=i;
+ }
+
+ if (type == 1)
+ {
+ /* we are talking sslv2 */
+ /* we need to clean up the SSLv3 setup and put in the
+ * sslv2 stuff. */
+
+ if (s->s2 == NULL)
+ {
+ if (!ssl2_new(s))
+ goto err;
+ }
+ else
+ ssl2_clear(s);
+
+ if (s->s3 != NULL) ssl3_free(s);
+
+ if (!BUF_MEM_grow(s->init_buf,
+ SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER))
+ {
+ goto err;
+ }
+
+ s->state=SSL2_ST_GET_CLIENT_HELLO_A;
+ if (s->ctx->options & SSL_OP_MSIE_SSLV2_RSA_PADDING)
+ s->s2->ssl2_rollback=0;
+ else
+ 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;
+
+ s->method=SSLv2_server_method();
+ s->handshake_func=s->method->ssl_accept;
+ }
+
+ if ((type == 2) || (type == 3))
+ {
+ /* we have sslv3 */
+
+ if (s->bbio == NULL)
+ {
+ bbio=BIO_new(BIO_f_buffer());
+ if (bbio == NULL)
+ goto err;
+ s->bbio=bbio;
+ }
+ else
+ bbio=s->bbio;
+ BIO_reset(bbio);
+ if (!BIO_set_write_buffer_size(bbio,16*1024))
+ goto err;
+ s->wbio=BIO_push(bbio,s->wbio);
+
+ /* we are in this state */
+ s->state=SSL3_ST_SR_CLNT_HELLO_A;
+
+ if (type == 3)
+ {
+ /* put the 'n' 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;
+ }
+ else
+ {
+ s->packet_length=0;
+ s->s3->rbuf.left=0;
+ s->s3->rbuf.offset=0;
+ }
+
+ s->method=SSLv3_server_method();
+ s->handshake_func=s->method->ssl_accept;
+ }
+
+ if ((type < 1) || (type > 3))
+ {
+ /* bad, very bad */
+ SSLerr(SSL_F_SSL23_GET_CLIENT_HELLO,SSL_R_UNKNOWN_PROTOCOL);
+ goto err;
+ }
+ s->init_num=0;
+ return(SSL_accept(s));
+err:
+ return(-1);
+ }
+
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-30 00:58:12 +0100