/*-
* for these 2 messages, we need to
* ssl->enc_read_ctx re-init
- * ssl->s3->read_sequence zero
+ * ssl->rlayer.read_sequence zero
* ssl->s3->read_mac_secret re-init
* ssl->session->read_sym_enc assign
* ssl->session->read_compression assign
s->d1->handshake_write_seq, 0, 0);
/* buffer the message to handle re-xmits */
- dtls1_buffer_message(s, 1);
+ if (!dtls1_buffer_message(s, 1)) {
+ SSLerr(SSL_F_DTLS1_SEND_CHANGE_CIPHER_SPEC, ERR_R_INTERNAL_ERROR);
+ return -1;
+ }
s->state = b;
}
memcpy(frag->fragment, s->init_buf->data, s->init_num);
if (is_ccs) {
+ /* For DTLS1_BAD_VER the header length is non-standard */
OPENSSL_assert(s->d1->w_msg_hdr.msg_len +
- DTLS1_CCS_HEADER_LENGTH == (unsigned int)s->init_num);
+ ((s->version==DTLS1_BAD_VER)?3:DTLS1_CCS_HEADER_LENGTH)
+ == (unsigned int)s->init_num);
} else {
OPENSSL_assert(s->d1->w_msg_hdr.msg_len +
DTLS1_HM_HEADER_LENGTH == (unsigned int)s->init_num);
frag->msg_header.saved_retransmit_state.write_hash = s->write_hash;
frag->msg_header.saved_retransmit_state.compress = s->compress;
frag->msg_header.saved_retransmit_state.session = s->session;
- frag->msg_header.saved_retransmit_state.epoch = s->d1->w_epoch;
+ frag->msg_header.saved_retransmit_state.epoch =
+ DTLS_RECORD_LAYER_get_w_epoch(&s->rlayer);
memset(seq64be, 0, sizeof(seq64be));
seq64be[6] =
unsigned long header_length;
unsigned char seq64be[8];
struct dtls1_retransmit_state saved_state;
- unsigned char save_write_sequence[8];
/*-
OPENSSL_assert(s->init_num == 0);
saved_state.write_hash = s->write_hash;
saved_state.compress = s->compress;
saved_state.session = s->session;
- saved_state.epoch = s->d1->w_epoch;
- saved_state.epoch = s->d1->w_epoch;
+ saved_state.epoch = DTLS_RECORD_LAYER_get_w_epoch(&s->rlayer);
s->d1->retransmitting = 1;
s->write_hash = frag->msg_header.saved_retransmit_state.write_hash;
s->compress = frag->msg_header.saved_retransmit_state.compress;
s->session = frag->msg_header.saved_retransmit_state.session;
- s->d1->w_epoch = frag->msg_header.saved_retransmit_state.epoch;
-
- if (frag->msg_header.saved_retransmit_state.epoch ==
- saved_state.epoch - 1) {
- memcpy(save_write_sequence, s->s3->write_sequence,
- sizeof(s->s3->write_sequence));
- memcpy(s->s3->write_sequence, s->d1->last_write_sequence,
- sizeof(s->s3->write_sequence));
- }
+ DTLS_RECORD_LAYER_set_saved_w_epoch(&s->rlayer,
+ frag->msg_header.saved_retransmit_state.epoch);
ret = dtls1_do_write(s, frag->msg_header.is_ccs ?
SSL3_RT_CHANGE_CIPHER_SPEC : SSL3_RT_HANDSHAKE);
s->write_hash = saved_state.write_hash;
s->compress = saved_state.compress;
s->session = saved_state.session;
- s->d1->w_epoch = saved_state.epoch;
-
- if (frag->msg_header.saved_retransmit_state.epoch ==
- saved_state.epoch - 1) {
- memcpy(s->d1->last_write_sequence, s->s3->write_sequence,
- sizeof(s->s3->write_sequence));
- memcpy(s->s3->write_sequence, save_write_sequence,
- sizeof(s->s3->write_sequence));
- }
+ DTLS_RECORD_LAYER_set_saved_w_epoch(&s->rlayer, saved_state.epoch);
s->d1->retransmitting = 0;
}
}
-unsigned char *dtls1_set_message_header(SSL *s, unsigned char *p,
+void dtls1_set_message_header(SSL *s, unsigned char *p,
unsigned char mt, unsigned long len,
unsigned long frag_off,
unsigned long frag_len)
dtls1_set_message_header_int(s, mt, len, s->d1->handshake_write_seq,
frag_off, frag_len);
-
- return p += DTLS1_HM_HEADER_LENGTH;
}
/* don't actually do the writing, wait till the MTU has been retrieved */
}
#ifndef OPENSSL_NO_HEARTBEATS
-int dtls1_process_heartbeat(SSL *s)
+int dtls1_process_heartbeat(SSL *s, unsigned char *p, unsigned int length)
{
- unsigned char *p = &s->s3->rrec.data[0], *pl;
+ unsigned char *pl;
unsigned short hbtype;
unsigned int payload;
unsigned int padding = 16; /* Use minimum padding */
if (s->msg_callback)
s->msg_callback(0, s->version, TLS1_RT_HEARTBEAT,
- &s->s3->rrec.data[0], s->s3->rrec.length,
- s, s->msg_callback_arg);
+ p, length, s, s->msg_callback_arg);
/* Read type and payload length first */
- if (1 + 2 + 16 > s->s3->rrec.length)
+ if (1 + 2 + 16 > length)
return 0; /* silently discard */
- if (s->s3->rrec.length > SSL3_RT_MAX_PLAIN_LENGTH)
+ if (length > SSL3_RT_MAX_PLAIN_LENGTH)
return 0; /* silently discard per RFC 6520 sec. 4 */
hbtype = *p++;
n2s(p, payload);
- if (1 + 2 + payload + 16 > s->s3->rrec.length)
+ if (1 + 2 + payload + 16 > length)
return 0; /* silently discard per RFC 6520 sec. 4 */
pl = p;
memcpy(bp, pl, payload);
bp += payload;
/* Random padding */
- RAND_pseudo_bytes(bp, padding);
+ if (RAND_bytes(bp, padding) <= 0) {
+ OPENSSL_free(buffer);
+ return -1;
+ }
r = dtls1_write_bytes(s, TLS1_RT_HEARTBEAT, buffer, write_length);
int dtls1_heartbeat(SSL *s)
{
unsigned char *buf, *p;
- int ret;
+ int ret = -1;
unsigned int payload = 18; /* Sequence number + random bytes */
unsigned int padding = 16; /* Use minimum padding */
/* Sequence number */
s2n(s->tlsext_hb_seq, p);
/* 16 random bytes */
- RAND_pseudo_bytes(p, 16);
+ if (RAND_bytes(p, 16) <= 0) {
+ SSLerr(SSL_F_DTLS1_HEARTBEAT, ERR_R_INTERNAL_ERROR);
+ goto err;
+ }
p += 16;
/* Random padding */
- RAND_pseudo_bytes(p, padding);
+ if (RAND_bytes(p, padding) <= 0) {
+ SSLerr(SSL_F_DTLS1_HEARTBEAT, ERR_R_INTERNAL_ERROR);
+ goto err;
+ }
ret = dtls1_write_bytes(s, TLS1_RT_HEARTBEAT, buf, 3 + payload + padding);
if (ret >= 0) {
s->tlsext_hb_pending = 1;
}
+ err:
OPENSSL_free(buf);
return ret;
projects / openssl.git / blobdiff