Implement msg_callback for SSL 2.0.
[openssl.git] / ssl / s23_clnt.c
index b607f62..d742453 100644 (file)
  */
 
 #include <stdio.h>
-#include "buffer.h"
-#include "rand.h"
-#include "objects.h"
-#include "evp.h"
+#include <openssl/buffer.h>
+#include <openssl/rand.h>
+#include <openssl/objects.h>
+#include <openssl/evp.h>
 #include "ssl_locl.h"
 
-#define BREAK break
-
-#ifndef NOPROTO
 static SSL_METHOD *ssl23_get_client_method(int ver);
 static int ssl23_client_hello(SSL *s);
 static int ssl23_get_server_hello(SSL *s);
-#else
-static SSL_METHOD *ssl23_get_client_method();
-static int ssl23_client_hello();
-static int ssl23_get_server_hello();
-#endif
-
-static SSL_METHOD *ssl23_get_client_method(ver)
-int ver;
+static SSL_METHOD *ssl23_get_client_method(int ver)
        {
+#ifndef OPENSSL_NO_SSL2
        if (ver == SSL2_VERSION)
                return(SSLv2_client_method());
-       else if (ver == SSL3_VERSION)
+#endif
+       if (ver == SSL3_VERSION)
                return(SSLv3_client_method());
        else if (ver == TLS1_VERSION)
                return(TLSv1_client_method());
@@ -88,24 +80,23 @@ int ver;
                return(NULL);
        }
 
-SSL_METHOD *SSLv23_client_method()
+SSL_METHOD *SSLv23_client_method(void)
        {
        static int init=1;
        static SSL_METHOD SSLv23_client_data;
 
        if (init)
                {
-               init=0;
                memcpy((char *)&SSLv23_client_data,
                        (char *)sslv23_base_method(),sizeof(SSL_METHOD));
                SSLv23_client_data.ssl_connect=ssl23_connect;
                SSLv23_client_data.get_ssl_method=ssl23_get_client_method;
+               init=0;
                }
        return(&SSLv23_client_data);
        }
 
-int ssl23_connect(s)
-SSL *s;
+int ssl23_connect(SSL *s)
        {
        BUF_MEM *buf;
        unsigned long Time=time(NULL);
@@ -113,7 +104,7 @@ SSL *s;
        int ret= -1;
        int new_state,state;
 
-       RAND_seed((unsigned char *)&Time,sizeof(Time));
+       RAND_add(&Time,sizeof(Time),0);
        ERR_clear_error();
        clear_sys_error();
 
@@ -122,8 +113,8 @@ SSL *s;
        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++;
+       if (!SSL_in_init(s) || SSL_in_before(s)) SSL_clear(s); 
 
        for (;;)
                {
@@ -136,6 +127,13 @@ SSL *s;
                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; */
@@ -161,7 +159,7 @@ SSL *s;
                        ssl3_init_finished_mac(s);
 
                        s->state=SSL23_ST_CW_CLNT_HELLO_A;
-                       s->ctx->sess_connect++;
+                       s->ctx->stats.sess_connect++;
                        s->init_num=0;
                        break;
 
@@ -190,7 +188,7 @@ SSL *s;
                        /* break; */
                        }
 
-               if (s->debug) BIO_flush(s->wbio);
+               if (s->debug) { (void)BIO_flush(s->wbio); }
 
                if ((cb != NULL) && (s->state != state))
                        {
@@ -208,12 +206,12 @@ end:
        }
 
 
-static int ssl23_client_hello(s)
-SSL *s;
+static int ssl23_client_hello(SSL *s)
        {
        unsigned char *buf;
        unsigned char *p,*d;
        int i,ch_len;
+       int ret;
 
        buf=(unsigned char *)s->init_buf->data;
        if (s->state == SSL23_ST_CW_CLNT_HELLO_A)
@@ -227,7 +225,7 @@ SSL *s;
 #endif
 
                p=s->s3->client_random;
-               RAND_bytes(p,SSL3_RANDOM_SIZE);
+               RAND_pseudo_bytes(p,SSL3_RANDOM_SIZE);
 
                /* Do the message type and length last */
                d= &(buf[2]);
@@ -238,16 +236,19 @@ SSL *s;
                        {
                        *(d++)=TLS1_VERSION_MAJOR;
                        *(d++)=TLS1_VERSION_MINOR;
+                       s->client_version=TLS1_VERSION;
                        }
                else if (!(s->options & SSL_OP_NO_SSLv3))
                        {
                        *(d++)=SSL3_VERSION_MAJOR;
                        *(d++)=SSL3_VERSION_MINOR;
+                       s->client_version=SSL3_VERSION;
                        }
                else if (!(s->options & SSL_OP_NO_SSLv2))
                        {
                        *(d++)=SSL2_VERSION_MAJOR;
                        *(d++)=SSL2_VERSION_MINOR;
+                       s->client_version=SSL2_VERSION;
                        }
                else
                        {
@@ -285,7 +286,7 @@ SSL *s;
                        i=ch_len;
                s2n(i,d);
                memset(&(s->s3->client_random[0]),0,SSL3_RANDOM_SIZE);
-               RAND_bytes(&(s->s3->client_random[SSL3_RANDOM_SIZE-i]),i);
+               RAND_pseudo_bytes(&(s->s3->client_random[SSL3_RANDOM_SIZE-i]),i);
                memcpy(p,&(s->s3->client_random[SSL3_RANDOM_SIZE-i]),i);
                p+=i;
 
@@ -302,15 +303,18 @@ SSL *s;
                }
 
        /* SSL3_ST_CW_CLNT_HELLO_B */
-       return(ssl23_write_bytes(s));
+       ret = ssl23_write_bytes(s);
+       if (ret >= 2)
+               if (s->msg_callback)
+                       s->msg_callback(1, SSL2_VERSION, 0, s->init_buf->data+2, ret-2, s, s->msg_callback_arg); /* CLIENT-HELLO */
+       return ret;
        }
 
-static int ssl23_get_server_hello(s)
-SSL *s;
+static int ssl23_get_server_hello(SSL *s)
        {
        char buf[8];
        unsigned char *p;
-       int i,ch_len;
+       int i;
        int n;
 
        n=ssl23_read_bytes(s,7);
@@ -323,9 +327,14 @@ SSL *s;
        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)
                        {
@@ -362,7 +371,9 @@ SSL *s;
                        }
 
                s->state=SSL2_ST_GET_SERVER_HELLO_A;
-               s->s2->ssl2_rollback=1;
+               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 */
@@ -378,6 +389,7 @@ SSL *s;
 
                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) &&