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Diffstat (limited to 'openssl/ssl/d1_clnt.c')
-rw-r--r--openssl/ssl/d1_clnt.c194
1 files changed, 184 insertions, 10 deletions
diff --git a/openssl/ssl/d1_clnt.c b/openssl/ssl/d1_clnt.c
index 089fa4c7f..a6ed09c51 100644
--- a/openssl/ssl/d1_clnt.c
+++ b/openssl/ssl/d1_clnt.c
@@ -150,7 +150,11 @@ int dtls1_connect(SSL *s)
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;;
+ int new_state,state,skip=0;
+#ifndef OPENSSL_NO_SCTP
+ unsigned char sctpauthkey[64];
+ char labelbuffer[sizeof(DTLS1_SCTP_AUTH_LABEL)];
+#endif
RAND_add(&Time,sizeof(Time),0);
ERR_clear_error();
@@ -164,6 +168,27 @@ int dtls1_connect(SSL *s)
s->in_handshake++;
if (!SSL_in_init(s) || SSL_in_before(s)) SSL_clear(s);
+#ifndef OPENSSL_NO_SCTP
+ /* Notify SCTP BIO socket to enter handshake
+ * mode and prevent stream identifier other
+ * than 0. Will be ignored if no SCTP is used.
+ */
+ BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_SET_IN_HANDSHAKE, s->in_handshake, NULL);
+#endif
+
+#ifndef OPENSSL_NO_HEARTBEATS
+ /* If we're awaiting a HeartbeatResponse, pretend we
+ * already got and don't await it anymore, because
+ * Heartbeats don't make sense during handshakes anyway.
+ */
+ if (s->tlsext_hb_pending)
+ {
+ dtls1_stop_timer(s);
+ s->tlsext_hb_pending = 0;
+ s->tlsext_hb_seq++;
+ }
+#endif
+
for (;;)
{
state=s->state;
@@ -171,7 +196,7 @@ int dtls1_connect(SSL *s)
switch(s->state)
{
case SSL_ST_RENEGOTIATE:
- s->new_session=1;
+ s->renegotiate=1;
s->state=SSL_ST_CONNECT;
s->ctx->stats.sess_connect_renegotiate++;
/* break */
@@ -226,6 +251,42 @@ int dtls1_connect(SSL *s)
s->hit = 0;
break;
+#ifndef OPENSSL_NO_SCTP
+ case DTLS1_SCTP_ST_CR_READ_SOCK:
+
+ if (BIO_dgram_sctp_msg_waiting(SSL_get_rbio(s)))
+ {
+ s->s3->in_read_app_data=2;
+ s->rwstate=SSL_READING;
+ BIO_clear_retry_flags(SSL_get_rbio(s));
+ BIO_set_retry_read(SSL_get_rbio(s));
+ ret = -1;
+ goto end;
+ }
+
+ s->state=s->s3->tmp.next_state;
+ break;
+
+ case DTLS1_SCTP_ST_CW_WRITE_SOCK:
+ /* read app data until dry event */
+
+ ret = BIO_dgram_sctp_wait_for_dry(SSL_get_wbio(s));
+ if (ret < 0) goto end;
+
+ if (ret == 0)
+ {
+ s->s3->in_read_app_data=2;
+ s->rwstate=SSL_READING;
+ BIO_clear_retry_flags(SSL_get_rbio(s));
+ BIO_set_retry_read(SSL_get_rbio(s));
+ ret = -1;
+ goto end;
+ }
+
+ s->state=s->d1->next_state;
+ break;
+#endif
+
case SSL3_ST_CW_CLNT_HELLO_A:
case SSL3_ST_CW_CLNT_HELLO_B:
@@ -248,9 +309,17 @@ int dtls1_connect(SSL *s)
s->init_num=0;
- /* turn on buffering for the next lot of output */
- if (s->bbio != s->wbio)
- s->wbio=BIO_push(s->bbio,s->wbio);
+#ifndef OPENSSL_NO_SCTP
+ /* Disable buffering for SCTP */
+ if (!BIO_dgram_is_sctp(SSL_get_wbio(s)))
+ {
+#endif
+ /* turn on buffering for the next lot of output */
+ if (s->bbio != s->wbio)
+ s->wbio=BIO_push(s->bbio,s->wbio);
+#ifndef OPENSSL_NO_SCTP
+ }
+#endif
break;
@@ -260,9 +329,25 @@ int dtls1_connect(SSL *s)
if (ret <= 0) goto end;
else
{
- dtls1_stop_timer(s);
if (s->hit)
+ {
+#ifndef OPENSSL_NO_SCTP
+ /* Add new shared key for SCTP-Auth,
+ * will be ignored if no SCTP used.
+ */
+ snprintf((char*) labelbuffer, sizeof(DTLS1_SCTP_AUTH_LABEL),
+ DTLS1_SCTP_AUTH_LABEL);
+
+ SSL_export_keying_material(s, sctpauthkey,
+ sizeof(sctpauthkey), labelbuffer,
+ sizeof(labelbuffer), NULL, 0, 0);
+
+ BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_ADD_AUTH_KEY,
+ sizeof(sctpauthkey), sctpauthkey);
+#endif
+
s->state=SSL3_ST_CR_FINISHED_A;
+ }
else
s->state=DTLS1_ST_CR_HELLO_VERIFY_REQUEST_A;
}
@@ -354,12 +439,20 @@ int dtls1_connect(SSL *s)
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;
+ s->s3->tmp.next_state=SSL3_ST_CW_CERT_A;
else
- s->state=SSL3_ST_CW_KEY_EXCH_A;
+ s->s3->tmp.next_state=SSL3_ST_CW_KEY_EXCH_A;
s->init_num=0;
+#ifndef OPENSSL_NO_SCTP
+ if (BIO_dgram_is_sctp(SSL_get_wbio(s)) &&
+ state == SSL_ST_RENEGOTIATE)
+ s->state=DTLS1_SCTP_ST_CR_READ_SOCK;
+ else
+#endif
+ s->state=s->s3->tmp.next_state;
break;
case SSL3_ST_CW_CERT_A:
@@ -378,6 +471,22 @@ int dtls1_connect(SSL *s)
dtls1_start_timer(s);
ret=dtls1_send_client_key_exchange(s);
if (ret <= 0) goto end;
+
+#ifndef OPENSSL_NO_SCTP
+ /* Add new shared key for SCTP-Auth,
+ * will be ignored if no SCTP used.
+ */
+ snprintf((char*) labelbuffer, sizeof(DTLS1_SCTP_AUTH_LABEL),
+ DTLS1_SCTP_AUTH_LABEL);
+
+ SSL_export_keying_material(s, sctpauthkey,
+ sizeof(sctpauthkey), labelbuffer,
+ sizeof(labelbuffer), NULL, 0, 0);
+
+ BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_ADD_AUTH_KEY,
+ sizeof(sctpauthkey), sctpauthkey);
+#endif
+
/* EAY EAY EAY need to check for DH fix cert
* sent back */
/* For TLS, cert_req is set to 2, so a cert chain
@@ -388,7 +497,15 @@ int dtls1_connect(SSL *s)
}
else
{
- s->state=SSL3_ST_CW_CHANGE_A;
+#ifndef OPENSSL_NO_SCTP
+ if (BIO_dgram_is_sctp(SSL_get_wbio(s)))
+ {
+ s->d1->next_state=SSL3_ST_CW_CHANGE_A;
+ s->state=DTLS1_SCTP_ST_CW_WRITE_SOCK;
+ }
+ else
+#endif
+ s->state=SSL3_ST_CW_CHANGE_A;
s->s3->change_cipher_spec=0;
}
@@ -400,7 +517,15 @@ int dtls1_connect(SSL *s)
dtls1_start_timer(s);
ret=dtls1_send_client_verify(s);
if (ret <= 0) goto end;
- s->state=SSL3_ST_CW_CHANGE_A;
+#ifndef OPENSSL_NO_SCTP
+ if (BIO_dgram_is_sctp(SSL_get_wbio(s)))
+ {
+ s->d1->next_state=SSL3_ST_CW_CHANGE_A;
+ s->state=DTLS1_SCTP_ST_CW_WRITE_SOCK;
+ }
+ else
+#endif
+ s->state=SSL3_ST_CW_CHANGE_A;
s->init_num=0;
s->s3->change_cipher_spec=0;
break;
@@ -412,6 +537,14 @@ int dtls1_connect(SSL *s)
ret=dtls1_send_change_cipher_spec(s,
SSL3_ST_CW_CHANGE_A,SSL3_ST_CW_CHANGE_B);
if (ret <= 0) goto end;
+
+#ifndef OPENSSL_NO_SCTP
+ /* Change to new shared key of SCTP-Auth,
+ * will be ignored if no SCTP used.
+ */
+ BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_NEXT_AUTH_KEY, 0, NULL);
+#endif
+
s->state=SSL3_ST_CW_FINISHED_A;
s->init_num=0;
@@ -457,9 +590,23 @@ int dtls1_connect(SSL *s)
if (s->hit)
{
s->s3->tmp.next_state=SSL_ST_OK;
+#ifndef OPENSSL_NO_SCTP
+ if (BIO_dgram_is_sctp(SSL_get_wbio(s)))
+ {
+ s->d1->next_state = s->s3->tmp.next_state;
+ s->s3->tmp.next_state=DTLS1_SCTP_ST_CW_WRITE_SOCK;
+ }
+#endif
if (s->s3->flags & SSL3_FLAGS_DELAY_CLIENT_FINISHED)
{
s->state=SSL_ST_OK;
+#ifndef OPENSSL_NO_SCTP
+ if (BIO_dgram_is_sctp(SSL_get_wbio(s)))
+ {
+ s->d1->next_state = SSL_ST_OK;
+ s->state=DTLS1_SCTP_ST_CW_WRITE_SOCK;
+ }
+#endif
s->s3->flags|=SSL3_FLAGS_POP_BUFFER;
s->s3->delay_buf_pop_ret=0;
}
@@ -508,6 +655,16 @@ int dtls1_connect(SSL *s)
s->state=SSL3_ST_CW_CHANGE_A;
else
s->state=SSL_ST_OK;
+
+#ifndef OPENSSL_NO_SCTP
+ if (BIO_dgram_is_sctp(SSL_get_wbio(s)) &&
+ state == SSL_ST_RENEGOTIATE)
+ {
+ s->d1->next_state=s->state;
+ s->state=DTLS1_SCTP_ST_CW_WRITE_SOCK;
+ }
+#endif
+
s->init_num=0;
break;
@@ -515,6 +672,13 @@ int dtls1_connect(SSL *s)
s->rwstate=SSL_WRITING;
if (BIO_flush(s->wbio) <= 0)
{
+ /* If the write error was fatal, stop trying */
+ if (!BIO_should_retry(s->wbio))
+ {
+ s->rwstate=SSL_NOTHING;
+ s->state=s->s3->tmp.next_state;
+ }
+
ret= -1;
goto end;
}
@@ -541,6 +705,7 @@ int dtls1_connect(SSL *s)
/* else do it later in ssl3_write */
s->init_num=0;
+ s->renegotiate=0;
s->new_session=0;
ssl_update_cache(s,SSL_SESS_CACHE_CLIENT);
@@ -587,6 +752,15 @@ int dtls1_connect(SSL *s)
}
end:
s->in_handshake--;
+
+#ifndef OPENSSL_NO_SCTP
+ /* Notify SCTP BIO socket to leave handshake
+ * mode and allow stream identifier other
+ * than 0. Will be ignored if no SCTP is used.
+ */
+ BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_SET_IN_HANDSHAKE, s->in_handshake, NULL);
+#endif
+
if (buf != NULL)
BUF_MEM_free(buf);
if (cb != NULL)
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-08 18:22:56 +0000