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316dbc792f
First calculate and sum TLS overhead when altcp_mbedtls_write() is called. Then take care of it when calling application sent callback. Give reveived len from inner_conn, minus calculated overhead.
84 lines
2.7 KiB
C
84 lines
2.7 KiB
C
/**
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* @file
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* Application layered TCP/TLS connection API (to be used from TCPIP thread)
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*
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* This file contains structure definitions for a TLS layer using mbedTLS.
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*/
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/*
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* Copyright (c) 2017 Simon Goldschmidt
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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* OF SUCH DAMAGE.
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*
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* This file is part of the lwIP TCP/IP stack.
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*
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* Author: Simon Goldschmidt <goldsimon@gmx.de>
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*
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*/
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#ifndef LWIP_HDR_ALTCP_MBEDTLS_STRUCTS_H
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#define LWIP_HDR_ALTCP_MBEDTLS_STRUCTS_H
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#include "lwip/opt.h"
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#if LWIP_ALTCP /* don't build if not configured for use in lwipopts.h */
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#include "lwip/apps/altcp_tls_mbedtls_opts.h"
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#if LWIP_ALTCP_TLS && LWIP_ALTCP_TLS_MBEDTLS
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#include "lwip/altcp.h"
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#include "lwip/pbuf.h"
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#include "mbedtls/ssl.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define ALTCP_MBEDTLS_FLAGS_HANDSHAKE_DONE 0x01
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#define ALTCP_MBEDTLS_FLAGS_UPPER_CALLED 0x02
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#define ALTCP_MBEDTLS_FLAGS_RX_CLOSE_QUEUED 0x04
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#define ALTCP_MBEDTLS_FLAGS_RX_CLOSED 0x08
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typedef struct altcp_mbedtls_state_s {
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void *conf;
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mbedtls_ssl_context ssl_context;
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/* chain of rx pbufs (before decryption) */
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struct pbuf *rx;
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struct pbuf *rx_app;
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u8_t flags;
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int rx_passed_unrecved;
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int bio_bytes_read;
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int bio_bytes_appl;
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int overhead_bytes_adjust;
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} altcp_mbedtls_state_t;
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#ifdef __cplusplus
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}
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#endif
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#endif /* LWIP_ALTCP_TLS && LWIP_ALTCP_TLS_MBEDTLS */
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#endif /* LWIP_ALTCP */
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#endif /* LWIP_HDR_ALTCP_MBEDTLS_STRUCTS_H */
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