memcpy(rl->write_sequence, seq, SEQ_NUM_SIZE);
}
-static int have_handshake_fragment(SSL *s, int type, unsigned char *buf,
- int len);
+static size_t have_handshake_fragment(SSL *s, int type, unsigned char *buf,
+ size_t len);
/* copy buffered record into SSL structure */
static int dtls1_copy_record(SSL *s, pitem *item)
* none of our business
*/
int dtls1_read_bytes(SSL *s, int type, int *recvd_type, unsigned char *buf,
- int len, int peek)
+ size_t len, int peek, size_t *readbytes)
{
- int al, i, j, ret;
- unsigned int n;
+ int al, i, j, iret;
+ size_t ret, n;
SSL3_RECORD *rr;
void (*cb) (const SSL *ssl, int type2, int val) = NULL;
/*
* check whether there's a handshake message (client hello?) waiting
*/
- if ((ret = have_handshake_fragment(s, type, buf, len))) {
+ ret = have_handshake_fragment(s, type, buf, len);
+ if (ret > 0) {
*recvd_type = SSL3_RT_HANDSHAKE;
- return ret;
+ *readbytes = ret;
+ return 1;
}
/*
/* type == SSL3_RT_APPLICATION_DATA */
i = s->handshake_func(s);
if (i < 0)
- return (i);
+ return i;
if (i == 0) {
SSLerr(SSL_F_DTLS1_READ_BYTES, SSL_R_SSL_HANDSHAKE_FAILURE);
- return (-1);
+ return -1;
}
}
/* get new packet if necessary */
if ((SSL3_RECORD_get_length(rr) == 0)
|| (s->rlayer.rstate == SSL_ST_READ_BODY)) {
- ret = dtls1_get_record(s);
- if (ret <= 0) {
- ret = dtls1_read_failed(s, ret);
+ iret = dtls1_get_record(s);
+ if (iret <= 0) {
+ iret = dtls1_read_failed(s, iret);
/* anything other than a timeout is an error */
- if (ret <= 0)
- return (ret);
+ if (iret <= 0)
+ return iret;
else
goto start;
}
if (s->shutdown & SSL_RECEIVED_SHUTDOWN) {
SSL3_RECORD_set_length(rr, 0);
s->rwstate = SSL_NOTHING;
- return (0);
+ return 0;
}
if (type == SSL3_RECORD_get_type(rr)
if (recvd_type != NULL)
*recvd_type = SSL3_RECORD_get_type(rr);
- if (len <= 0)
- return (len);
+ if (len == 0)
+ return 0;
- if ((unsigned int)len > SSL3_RECORD_get_length(rr))
+ if (len > SSL3_RECORD_get_length(rr))
n = SSL3_RECORD_get_length(rr);
else
- n = (unsigned int)len;
+ n = len;
memcpy(buf, &(SSL3_RECORD_get_data(rr)[SSL3_RECORD_get_off(rr)]), n);
if (!peek) {
s->d1->shutdown_received
&& !BIO_dgram_sctp_msg_waiting(SSL_get_rbio(s))) {
s->shutdown |= SSL_RECEIVED_SHUTDOWN;
- return (0);
+ return 0;
}
#endif
- return (n);
+ *readbytes = n;
+ return 1;
}
/*
* that so that we can process the data at a fixed place.
*/
{
- unsigned int k, dest_maxlen = 0;
+ size_t k, dest_maxlen = 0;
unsigned char *dest = NULL;
- unsigned int *dest_len = NULL;
+ size_t *dest_len = NULL;
if (SSL3_RECORD_get_type(rr) == SSL3_RT_HANDSHAKE) {
dest_maxlen = sizeof s->rlayer.d->handshake_fragment;
dest = s->rlayer.d->alert_fragment;
dest_len = &s->rlayer.d->alert_fragment_len;
}
-#ifndef OPENSSL_NO_HEARTBEATS
- else if (SSL3_RECORD_get_type(rr) == DTLS1_RT_HEARTBEAT) {
- /* We allow a 0 return */
- if (dtls1_process_heartbeat(s, SSL3_RECORD_get_data(rr),
- SSL3_RECORD_get_length(rr)) < 0) {
- return -1;
- }
- /* Exit and notify application to read again */
- SSL3_RECORD_set_length(rr, 0);
- s->rwstate = SSL_READING;
- BIO_clear_retry_flags(SSL_get_rbio(s));
- BIO_set_retry_read(SSL_get_rbio(s));
- return (-1);
- }
-#endif
/* else it's a CCS message, or application data or wrong */
else if (SSL3_RECORD_get_type(rr) != SSL3_RT_CHANGE_CIPHER_SPEC) {
/*
s->rwstate = SSL_READING;
BIO_clear_retry_flags(bio);
BIO_set_retry_read(bio);
- return (-1);
+ return -1;
}
/* Not certain if this is the right error handling */
if (ssl3_renegotiate_check(s)) {
i = s->handshake_func(s);
if (i < 0)
- return (i);
+ return i;
if (i == 0) {
SSLerr(SSL_F_DTLS1_READ_BYTES, SSL_R_SSL_HANDSHAKE_FAILURE);
- return (-1);
+ return -1;
}
if (!(s->mode & SSL_MODE_AUTO_RETRY)) {
bio = SSL_get_rbio(s);
BIO_clear_retry_flags(bio);
BIO_set_retry_read(bio);
- return (-1);
+ return -1;
}
}
}
}
#endif
s->shutdown |= SSL_RECEIVED_SHUTDOWN;
- return (0);
+ return 0;
}
#if 0
/* XXX: this is a possible improvement in the future */
ERR_add_error_data(2, "SSL alert number ", tmp);
s->shutdown |= SSL_RECEIVED_SHUTDOWN;
SSL_CTX_remove_session(s->session_ctx, s->session);
- return (0);
+ return 0;
} else {
al = SSL_AD_ILLEGAL_PARAMETER;
SSLerr(SSL_F_DTLS1_READ_BYTES, SSL_R_UNKNOWN_ALERT_TYPE);
* shutdown */
s->rwstate = SSL_NOTHING;
SSL3_RECORD_set_length(rr, 0);
- return (0);
+ return 0;
}
if (SSL3_RECORD_get_type(rr) == SSL3_RT_CHANGE_CIPHER_SPEC) {
}
i = s->handshake_func(s);
if (i < 0)
- return (i);
+ return i;
if (i == 0) {
SSLerr(SSL_F_DTLS1_READ_BYTES, SSL_R_SSL_HANDSHAKE_FAILURE);
- return (-1);
+ return -1;
}
if (!(s->mode & SSL_MODE_AUTO_RETRY)) {
bio = SSL_get_rbio(s);
BIO_clear_retry_flags(bio);
BIO_set_retry_read(bio);
- return (-1);
+ return -1;
}
}
goto start;
(s->s3->total_renegotiations != 0) &&
ossl_statem_app_data_allowed(s)) {
s->s3->in_read_app_data = 2;
- return (-1);
+ return -1;
} else {
al = SSL_AD_UNEXPECTED_MESSAGE;
SSLerr(SSL_F_DTLS1_READ_BYTES, SSL_R_UNEXPECTED_RECORD);
f_err:
ssl3_send_alert(s, SSL3_AL_FATAL, al);
- return (-1);
+ return -1;
}
- /*
- * this only happens when a client hello is received and a handshake
- * is started.
- */
-static int have_handshake_fragment(SSL *s, int type, unsigned char *buf,
- int len)
+/*
+ * this only happens when a client hello is received and a handshake
+ * is started.
+ */
+static size_t have_handshake_fragment(SSL *s, int type, unsigned char *buf,
+ size_t len)
{
if ((type == SSL3_RT_HANDSHAKE)
{
unsigned char *src = s->rlayer.d->handshake_fragment;
unsigned char *dst = buf;
- unsigned int k, n;
+ size_t k, n;
/* peek == 0 */
n = 0;
* Call this to write data in records of type 'type' It will return <= 0 if
* not all data has been sent or non-blocking IO.
*/
-int dtls1_write_bytes(SSL *s, int type, const void *buf, int len)
+int dtls1_write_bytes(SSL *s, int type, const void *buf, size_t len,
+ size_t *written)
{
int i;
OPENSSL_assert(len <= SSL3_RT_MAX_PLAIN_LENGTH);
s->rwstate = SSL_NOTHING;
- i = do_dtls1_write(s, type, buf, len, 0);
+ i = do_dtls1_write(s, type, buf, len, 0, written);
return i;
}
int do_dtls1_write(SSL *s, int type, const unsigned char *buf,
- unsigned int len, int create_empty_fragment)
+ size_t len, int create_empty_fragment, size_t *written)
{
unsigned char *p, *pseq;
int i, mac_size, clear = 0;
- int prefix_len = 0;
+ size_t prefix_len = 0;
int eivlen;
SSL3_RECORD wr;
SSL3_BUFFER *wb;
*/
if (SSL3_BUFFER_get_left(wb) != 0) {
OPENSSL_assert(0); /* XDTLS: want to see if we ever get here */
- return (ssl3_write_pending(s, type, buf, len));
+ return ssl3_write_pending(s, type, buf, len, written);
}
/* If we have an alert to send, lets send it */
if (s->s3->alert_dispatch) {
i = s->method->ssl_dispatch_alert(s);
if (i <= 0)
- return (i);
+ return i;
/* if it went, fall through and send more stuff */
}
/* lets setup the record stuff. */
SSL3_RECORD_set_data(&wr, p + eivlen); /* make room for IV in case of CBC */
- SSL3_RECORD_set_length(&wr, (int)len);
+ SSL3_RECORD_set_length(&wr, len);
SSL3_RECORD_set_input(&wr, (unsigned char *)buf);
/*
*/
if (!SSL_USE_ETM(s) && mac_size != 0) {
- if (s->method->ssl3_enc->mac(s, &wr,
- &(p[SSL3_RECORD_get_length(&wr) + eivlen]),
- 1) < 0)
+ if (!s->method->ssl3_enc->mac(s, &wr,
+ &(p[SSL3_RECORD_get_length(&wr) + eivlen]),
+ 1))
goto err;
SSL3_RECORD_add_length(&wr, mac_size);
}
goto err;
if (SSL_USE_ETM(s) && mac_size != 0) {
- if (s->method->ssl3_enc->mac(s, &wr,
- &(p[SSL3_RECORD_get_length(&wr)]),
- 1) < 0)
+ if (!s->method->ssl3_enc->mac(s, &wr,
+ &(p[SSL3_RECORD_get_length(&wr)]), 1))
goto err;
SSL3_RECORD_add_length(&wr, mac_size);
}
* we are in a recursive call; just return the length, don't write
* out anything here
*/
- return wr.length;
+ *written = wr.length;
+ return 1;
}
/* now let's set up wb */
s->rlayer.wpend_ret = len;
/* we now just need to write the buffer */
- return ssl3_write_pending(s, type, buf, len);
+ return ssl3_write_pending(s, type, buf, len, written);
err:
return -1;
}
projects / openssl.git / blobdiff