/*
* Copyright 2005-2016 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the OpenSSL license (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <stdio.h>
#include <errno.h>
#include "../ssl_locl.h"
#include <openssl/evp.h>
#include <openssl/buffer.h>
#include "record_locl.h"
#include "../packet_locl.h"
#include "internal/cryptlib.h"
int DTLS_RECORD_LAYER_new(RECORD_LAYER *rl)
{
DTLS_RECORD_LAYER *d;
if ((d = OPENSSL_malloc(sizeof(*d))) == NULL)
return (0);
rl->d = d;
d->unprocessed_rcds.q = pqueue_new();
d->processed_rcds.q = pqueue_new();
d->buffered_app_data.q = pqueue_new();
if (d->unprocessed_rcds.q == NULL || d->processed_rcds.q == NULL
|| d->buffered_app_data.q == NULL) {
pqueue_free(d->unprocessed_rcds.q);
pqueue_free(d->processed_rcds.q);
pqueue_free(d->buffered_app_data.q);
OPENSSL_free(d);
rl->d = NULL;
return (0);
}
return 1;
}
void DTLS_RECORD_LAYER_free(RECORD_LAYER *rl)
{
DTLS_RECORD_LAYER_clear(rl);
pqueue_free(rl->d->unprocessed_rcds.q);
pqueue_free(rl->d->processed_rcds.q);
pqueue_free(rl->d->buffered_app_data.q);
OPENSSL_free(rl->d);
rl->d = NULL;
}
void DTLS_RECORD_LAYER_clear(RECORD_LAYER *rl)
{
DTLS_RECORD_LAYER *d;
pitem *item = NULL;
DTLS1_RECORD_DATA *rdata;
pqueue *unprocessed_rcds;
pqueue *processed_rcds;
pqueue *buffered_app_data;
d = rl->d;
while ((item = pqueue_pop(d->unprocessed_rcds.q)) != NULL) {
rdata = (DTLS1_RECORD_DATA *)item->data;
OPENSSL_free(rdata->rbuf.buf);
OPENSSL_free(item->data);
pitem_free(item);
}
while ((item = pqueue_pop(d->processed_rcds.q)) != NULL) {
rdata = (DTLS1_RECORD_DATA *)item->data;
OPENSSL_free(rdata->rbuf.buf);
OPENSSL_free(item->data);
pitem_free(item);
}
while ((item = pqueue_pop(d->buffered_app_data.q)) != NULL) {
rdata = (DTLS1_RECORD_DATA *)item->data;
OPENSSL_free(rdata->rbuf.buf);
OPENSSL_free(item->data);
pitem_free(item);
}
unprocessed_rcds = d->unprocessed_rcds.q;
processed_rcds = d->processed_rcds.q;
buffered_app_data = d->buffered_app_data.q;
memset(d, 0, sizeof(*d));
d->unprocessed_rcds.q = unprocessed_rcds;
d->processed_rcds.q = processed_rcds;
d->buffered_app_data.q = buffered_app_data;
}
void DTLS_RECORD_LAYER_set_saved_w_epoch(RECORD_LAYER *rl, unsigned short e)
{
if (e == rl->d->w_epoch - 1) {
memcpy(rl->d->curr_write_sequence,
rl->write_sequence, sizeof(rl->write_sequence));
memcpy(rl->write_sequence,
rl->d->last_write_sequence, sizeof(rl->write_sequence));
} else if (e == rl->d->w_epoch + 1) {
memcpy(rl->d->last_write_sequence,
rl->write_sequence, sizeof(unsigned char[8]));
memcpy(rl->write_sequence,
rl->d->curr_write_sequence, sizeof(rl->write_sequence));
}
rl->d->w_epoch = e;
}
void DTLS_RECORD_LAYER_set_write_sequence(RECORD_LAYER *rl, unsigned char