/* * Copyright 1995-2022 The OpenSSL Project Authors. All Rights Reserved. * * Licensed under the Apache License 2.0 (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<limits.h>#include<errno.h>#include"../ssl_local.h"#include<openssl/evp.h>#include<openssl/buffer.h>#include<openssl/rand.h>#include<openssl/core_names.h>#include"record_local.h"#include"internal/packet.h"voidRECORD_LAYER_init(RECORD_LAYER*rl,SSL_CONNECTION*s){rl->s=s;}voidRECORD_LAYER_clear(RECORD_LAYER*rl){rl->wnum=0;memset(rl->handshake_fragment,0,sizeof(rl->handshake_fragment));rl->handshake_fragment_len=0;rl->wpend_tot=0;rl->wpend_type=0;rl->wpend_ret=0;rl->wpend_buf=NULL;if(rl->rrlmethod!=NULL)rl->rrlmethod->free(rl->rrl);/* Ignore return value */if(rl->wrlmethod!=NULL)rl->wrlmethod->free(rl->wrl);/* Ignore return value */BIO_free(rl->rrlnext);rl->rrlmethod=NULL;rl->wrlmethod=NULL;rl->rrlnext=NULL;rl->rrl=NULL;rl->wrl=NULL;if(rl->d)DTLS_RECORD_LAYER_clear(rl);}voidRECORD_LAYER_release(RECORD_LAYER*rl){/* * TODO(RECLAYER): Need a way to release the write buffers in the record * layer on demand */}/* Checks if we have unprocessed read ahead data pending */intRECORD_LAYER_read_pending(constRECORD_LAYER*rl){