#include <stdio.h>
#include "ssl_locl.h"
+#include "kssl_lcl.h"
#include <openssl/buffer.h>
#include <openssl/rand.h>
#include <openssl/objects.h>
#include <openssl/evp.h>
#include <openssl/md5.h>
+#ifndef OPENSSL_NO_DH
+#include <openssl/dh.h>
+#endif
static SSL_METHOD *dtls1_get_client_method(int ver);
static int dtls1_get_hello_verify(SSL *s);
static SSL_METHOD *dtls1_get_client_method(int ver)
{
- if (ver == DTLS1_VERSION)
+ if (ver == DTLS1_VERSION || ver == DTLS1_BAD_VER)
return(DTLSv1_client_method());
else
return(NULL);
}
-SSL_METHOD *DTLSv1_client_method(void)
- {
- static int init=1;
- static SSL_METHOD DTLSv1_client_data;
-
- if (init)
- {
- CRYPTO_w_lock(CRYPTO_LOCK_SSL_METHOD);
-
- if (init)
- {
- memcpy((char *)&DTLSv1_client_data,(char *)dtlsv1_base_method(),
- sizeof(SSL_METHOD));
- DTLSv1_client_data.ssl_connect=dtls1_connect;
- DTLSv1_client_data.get_ssl_method=dtls1_get_client_method;
- init=0;
- }
-
- CRYPTO_w_unlock(CRYPTO_LOCK_SSL_METHOD);
- }
- return(&DTLSv1_client_data);
- }
+IMPLEMENT_dtls1_meth_func(DTLSv1_client_method,
+ ssl_undefined_function,
+ dtls1_connect,
+ dtls1_get_client_method)
int dtls1_connect(SSL *s)
{
BUF_MEM *buf=NULL;
- unsigned long Time=time(NULL),l;
- long num1;
+ unsigned long Time=(unsigned long)time(NULL);
void (*cb)(const SSL *ssl,int type,int val)=NULL;
int ret= -1;
int new_state,state,skip=0;;
s->server=0;
if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_START,1);
- if ((s->version & 0xff00 ) != (DTLS1_VERSION & 0xff00))
+ if ((s->version & 0xff00 ) != (DTLS1_VERSION & 0xff00) &&
+ (s->version & 0xff00 ) != (DTLS1_BAD_VER & 0xff00))
{
SSLerr(SSL_F_DTLS1_CONNECT, ERR_R_INTERNAL_ERROR);
ret = -1;
/* don't push the buffering BIO quite yet */
- ssl3_init_finished_mac(s);
-
s->state=SSL3_ST_CW_CLNT_HELLO_A;
s->ctx->stats.sess_connect++;
s->init_num=0;
+ /* mark client_random uninitialized */
+ memset(s->s3->client_random,0,sizeof(s->s3->client_random));
+ s->d1->send_cookie = 0;
+ s->hit = 0;
break;
case SSL3_ST_CW_CLNT_HELLO_A:
case SSL3_ST_CW_CLNT_HELLO_B:
s->shutdown=0;
+
+ /* every DTLS ClientHello resets Finished MAC */
+ ssl3_init_finished_mac(s);
+
+ dtls1_start_timer(s);
ret=dtls1_client_hello(s);
if (ret <= 0) goto end;
ret = dtls1_get_hello_verify(s);
if ( ret <= 0)
goto end;
+ dtls1_stop_timer(s);
if ( s->d1->send_cookie) /* start again, with a cookie */
s->state=SSL3_ST_CW_CLNT_HELLO_A;
else
case SSL3_ST_CR_CERT_A:
case SSL3_ST_CR_CERT_B:
+#ifndef OPENSSL_NO_TLSEXT
+ ret=ssl3_check_finished(s);
+ if (ret <= 0) goto end;
+ if (ret == 2)
+ {
+ s->hit = 1;
+ if (s->tlsext_ticket_expected)
+ s->state=SSL3_ST_CR_SESSION_TICKET_A;
+ else
+ s->state=SSL3_ST_CR_FINISHED_A;
+ s->init_num=0;
+ break;
+ }
+#endif
/* Check if it is anon DH */
if (!(s->s3->tmp.new_cipher->algorithms & SSL_aNULL))
{
ret=ssl3_get_server_certificate(s);
if (ret <= 0) goto end;
+#ifndef OPENSSL_NO_TLSEXT
+ if (s->tlsext_status_expected)
+ s->state=SSL3_ST_CR_CERT_STATUS_A;
+ else
+ s->state=SSL3_ST_CR_KEY_EXCH_A;
+ }
+ else
+ {
+ skip = 1;
+ s->state=SSL3_ST_CR_KEY_EXCH_A;
+ }
+#else
}
else
skip=1;
+
s->state=SSL3_ST_CR_KEY_EXCH_A;
+#endif
s->init_num=0;
break;
case SSL3_ST_CR_SRVR_DONE_B:
ret=ssl3_get_server_done(s);
if (ret <= 0) goto end;
+ dtls1_stop_timer(s);
if (s->s3->tmp.cert_req)
s->state=SSL3_ST_CW_CERT_A;
else
case SSL3_ST_CW_CERT_B:
case SSL3_ST_CW_CERT_C:
case SSL3_ST_CW_CERT_D:
+ dtls1_start_timer(s);
ret=dtls1_send_client_certificate(s);
if (ret <= 0) goto end;
s->state=SSL3_ST_CW_KEY_EXCH_A;
case SSL3_ST_CW_KEY_EXCH_A:
case SSL3_ST_CW_KEY_EXCH_B:
+ dtls1_start_timer(s);
ret=dtls1_send_client_key_exchange(s);
if (ret <= 0) goto end;
- l=s->s3->tmp.new_cipher->algorithms;
/* EAY EAY EAY need to check for DH fix cert
* sent back */
/* For TLS, cert_req is set to 2, so a cert chain
case SSL3_ST_CW_CERT_VRFY_A:
case SSL3_ST_CW_CERT_VRFY_B:
+ dtls1_start_timer(s);
ret=dtls1_send_client_verify(s);
if (ret <= 0) goto end;
s->state=SSL3_ST_CW_CHANGE_A;
case SSL3_ST_CW_CHANGE_A:
case SSL3_ST_CW_CHANGE_B:
+ if (!s->hit)
+ dtls1_start_timer(s);
ret=dtls1_send_change_cipher_spec(s,
SSL3_ST_CW_CHANGE_A,SSL3_ST_CW_CHANGE_B);
if (ret <= 0) goto end;
s->init_num=0;
s->session->cipher=s->s3->tmp.new_cipher;
+#ifdef OPENSSL_NO_COMP
+ s->session->compress_meth=0;
+#else
if (s->s3->tmp.new_compression == NULL)
s->session->compress_meth=0;
else
s->session->compress_meth=
s->s3->tmp.new_compression->id;
+#endif
if (!s->method->ssl3_enc->setup_key_block(s))
{
ret= -1;
case SSL3_ST_CW_FINISHED_A:
case SSL3_ST_CW_FINISHED_B:
+ if (!s->hit)
+ dtls1_start_timer(s);
ret=dtls1_send_finished(s,
SSL3_ST_CW_FINISHED_A,SSL3_ST_CW_FINISHED_B,
s->method->ssl3_enc->client_finished_label,
}
else
{
+#ifndef OPENSSL_NO_TLSEXT
+ /* Allow NewSessionTicket if ticket expected */
+ if (s->tlsext_ticket_expected)
+ s->s3->tmp.next_state=SSL3_ST_CR_SESSION_TICKET_A;
+ else
+#endif
+
s->s3->tmp.next_state=SSL3_ST_CR_FINISHED_A;
}
s->init_num=0;
+
break;
+#ifndef OPENSSL_NO_TLSEXT
+ case SSL3_ST_CR_SESSION_TICKET_A:
+ case SSL3_ST_CR_SESSION_TICKET_B:
+ ret=ssl3_get_new_session_ticket(s);
+ if (ret <= 0) goto end;
+ s->state=SSL3_ST_CR_FINISHED_A;
+ s->init_num=0;
+ break;
+
+ case SSL3_ST_CR_CERT_STATUS_A:
+ case SSL3_ST_CR_CERT_STATUS_B:
+ ret=ssl3_get_cert_status(s);
+ if (ret <= 0) goto end;
+ s->state=SSL3_ST_CR_KEY_EXCH_A;
+ s->init_num=0;
+ break;
+#endif
+
case SSL3_ST_CR_FINISHED_A:
case SSL3_ST_CR_FINISHED_B:
-
+ s->d1->change_cipher_spec_ok = 1;
ret=ssl3_get_finished(s,SSL3_ST_CR_FINISHED_A,
SSL3_ST_CR_FINISHED_B);
if (ret <= 0) goto end;
+ dtls1_stop_timer(s);
if (s->hit)
s->state=SSL3_ST_CW_CHANGE_A;
break;
case SSL3_ST_CW_FLUSH:
- /* number of bytes to be flushed */
- num1=BIO_ctrl(s->wbio,BIO_CTRL_INFO,0,NULL);
- if (num1 > 0)
+ s->rwstate=SSL_WRITING;
+ if (BIO_flush(s->wbio) <= 0)
{
- s->rwstate=SSL_WRITING;
- num1=BIO_flush(s->wbio);
- if (num1 <= 0) { ret= -1; goto end; }
- s->rwstate=SSL_NOTHING;
+ ret= -1;
+ goto end;
}
-
+ s->rwstate=SSL_NOTHING;
s->state=s->s3->tmp.next_state;
break;
/* done with handshaking */
s->d1->handshake_read_seq = 0;
+ s->d1->next_handshake_write_seq = 0;
goto end;
/* break; */
{
unsigned char *buf;
unsigned char *p,*d;
- int i,j;
+ unsigned int i,j;
unsigned long Time,l;
SSL_COMP *comp;
buf=(unsigned char *)s->init_buf->data;
if (s->state == SSL3_ST_CW_CLNT_HELLO_A)
{
+ SSL_SESSION *sess = s->session;
if ((s->session == NULL) ||
(s->session->ssl_version != s->version) ||
+#ifdef OPENSSL_NO_TLSEXT
+ !sess->session_id_length ||
+#else
+ (!sess->session_id_length && !sess->tlsext_tick) ||
+#endif
(s->session->not_resumable))
{
if (!ssl_get_new_session(s,0))
/* else use the pre-loaded session */
p=s->s3->client_random;
- Time=time(NULL); /* Time */
- l2n(Time,p);
- RAND_pseudo_bytes(p,SSL3_RANDOM_SIZE-sizeof(Time));
+ /* if client_random is initialized, reuse it, we are
+ * required to use same upon reply to HelloVerify */
+ for (i=0;p[i]=='\0' && i<sizeof(s->s3->client_random);i++) ;
+ if (i==sizeof(s->s3->client_random))
+ {
+ Time=(unsigned long)time(NULL); /* Time */
+ l2n(Time,p);
+ RAND_pseudo_bytes(p,SSL3_RANDOM_SIZE-4);
+ }
/* Do the message type and length last */
d=p= &(buf[DTLS1_HM_HEADER_LENGTH]);
*(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_DTLS1_CLIENT_HELLO,ERR_R_INTERNAL_ERROR);
+ goto err;
+ }
+#endif
+
l=(p-d);
d=buf;
s->session->master_key_length=sizeof tmp_buf;
q=p;
- /* Fix buf for TLS and beyond */
+ /* Fix buf for TLS and [incidentally] DTLS */
if (s->version > SSL3_VERSION)
p+=2;
n=RSA_public_encrypt(sizeof tmp_buf,
goto err;
}
- /* Fix buf for TLS and beyond */
+ /* Fix buf for TLS and [incidentally] DTLS */
if (s->version > SSL3_VERSION)
{
s2n(n,q);
* ssl->rwstate=SSL_X509_LOOKUP; return(-1);
* We then get retied later */
i=0;
- if (s->ctx->client_cert_cb != NULL)
- i=s->ctx->client_cert_cb(s,&(x509),&(pkey));
+ i = ssl_do_client_cert_cb(s, &x509, &pkey);
if (i < 0)
{
s->rwstate=SSL_X509_LOOKUP;
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