int dtls1_process_buffered_records(SSL *s)
{
pitem *item;
item = pqueue_peek(s->rlayer.d->unprocessed_rcds.q);
if (item) {
/* Check if epoch is current. */
if (s->rlayer.d->unprocessed_rcds.epoch != s->rlayer.d->r_epoch)
return (1); /* Nothing to do. */
/* Process all the records. */
while (pqueue_peek(s->rlayer.d->unprocessed_rcds.q)) {
dtls1_get_unprocessed_record(s);
if (!dtls1_process_record(s))
return (0);
if (dtls1_buffer_record(s, &(s->rlayer.d->processed_rcds),
SSL3_RECORD_get_seq_num(&s->rlayer.rrec)) < 0)
return -1;
}
}
/*
* sync epoch numbers once all the unprocessed records have been
* processed
*/
s->rlayer.d->processed_rcds.epoch = s->rlayer.d->r_epoch;
s->rlayer.d->unprocessed_rcds.epoch = s->rlayer.d->r_epoch + 1;
return (1);
}
int dtls1_process_buffered_records(SSL *s)
{
pitem *item;
SSL3_BUFFER *rb;
SSL3_RECORD *rr;
DTLS1_BITMAP *bitmap;
unsigned int is_next_epoch;
int replayok = 1;
item = pqueue_peek(s->rlayer.d->unprocessed_rcds.q);
if (item) {
/* Check if epoch is current. */
if (s->rlayer.d->unprocessed_rcds.epoch != s->rlayer.d->r_epoch)
return 1; /* Nothing to do. */
rr = RECORD_LAYER_get_rrec(&s->rlayer);
rb = RECORD_LAYER_get_rbuf(&s->rlayer);
if (SSL3_BUFFER_get_left(rb) > 0) {
/*
* We've still got data from the current packet to read. There could
* be a record from the new epoch in it - so don't overwrite it
* with the unprocessed records yet (we'll do it when we've
* finished reading the current packet).
*/
return 1;
}
/* Process all the records. */
while (pqueue_peek(s->rlayer.d->unprocessed_rcds.q)) {
dtls1_get_unprocessed_record(s);
bitmap = dtls1_get_bitmap(s, rr, &is_next_epoch);
if (bitmap == NULL) {
/*
* Should not happen. This will only ever be NULL when the
* current record is from a different epoch. But that cannot
* be the case because we already checked the epoch above
*/
SSLfatal(s, SSL_AD_INTERNAL_ERROR,
SSL_F_DTLS1_PROCESS_BUFFERED_RECORDS,
ERR_R_INTERNAL_ERROR);
return 0;
}
#ifndef OPENSSL_NO_SCTP
/* Only do replay check if no SCTP bio */
if (!BIO_dgram_is_sctp(SSL_get_rbio(s)))
#endif
{
/*
* Check whether this is a repeat, or aged record. We did this
* check once already when we first received the record - but
* we might have updated the window since then due to
* records we subsequently processed.
*/
replayok = dtls1_record_replay_check(s, bitmap);
}
if (!replayok || !dtls1_process_record(s, bitmap)) {
if (ossl_statem_in_error(s)) {
/* dtls1_process_record called SSLfatal() */
return -1;
}
/* dump this record */
rr->length = 0;
RECORD_LAYER_reset_packet_length(&s->rlayer);
continue;
}
if (dtls1_buffer_record(s, &(s->rlayer.d->processed_rcds),
SSL3_RECORD_get_seq_num(s->rlayer.rrec)) < 0) {
/* SSLfatal() already called */
return 0;
}
}
}
/*
* sync epoch numbers once all the unprocessed records have been
* processed
*/
s->rlayer.d->processed_rcds.epoch = s->rlayer.d->r_epoch;
s->rlayer.d->unprocessed_rcds.epoch = s->rlayer.d->r_epoch + 1;
return 1;
}
