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131 lines
3.2 KiB
C

/*
* tls_config.h
*
* TLS Configuration API for protocol stacks using TCP/IP
*
* Copyright 2017-2018 MZ Automation GmbH
*
* Abstraction layer for configuration of different TLS implementations
*
*/
#ifndef SRC_TLS_CONFIG_H_
#define SRC_TLS_CONFIG_H_
#ifdef __cplusplus
extern "C" {
#endif
#include "hal_base.h"
/**
* \file tls_config.h
* \brief TLS API functions
*/
/*! \addtogroup hal Platform (Hardware/OS) abstraction layer
*
* @{
*/
/**
* @defgroup TLS_CONFIG_API TLS configuration
*
* @{
*/
typedef struct sTLSConfiguration* TLSConfiguration;
/**
* \brief Create a new \ref TLSConfiguration object to represent TLS configuration and certificates
*
* \return the new TLS configuration
*/
PAL_API TLSConfiguration
TLSConfiguration_create(void);
/* will be called by stack automatically when appropriate */
PAL_API void
TLSConfiguration_setClientMode(TLSConfiguration self);
/**
* \brief Enables the validation of the certificate trust chain (enabled by default)
*
* \param value true to enable chain validation, false to disable
*/
PAL_API void
TLSConfiguration_setChainValidation(TLSConfiguration self, bool value);
/**
* \brief Set if only known certificates are accepted.
*
* If set to true only known certificates are accepted. Connections with unknown certificates
* are rejected even if they are signed by a trusted authority.
*
* \param value true to enable setting, false otherwise
*/
PAL_API void
TLSConfiguration_setAllowOnlyKnownCertificates(TLSConfiguration self, bool value);
/**
* \brief Set own certificate (identity) from a byte buffer
*
* \param certificate the certificate buffer
* \param certLen the lenght of the certificate
*
* \return true, when the certificate was set, false otherwise (e.g. unknown certificate format)
*/
PAL_API bool
TLSConfiguration_setOwnCertificate(TLSConfiguration self, uint8_t* certificate, int certLen);
/**
* \brief Set own certificate (identity) from a certificate file
*
* \param filename of the certificate file
*
* \return true, when the certificate was set, false otherwise (e.g. unknown certificate format)
*/
PAL_API bool
TLSConfiguration_setOwnCertificateFromFile(TLSConfiguration self, const char* filename);
PAL_API bool
TLSConfiguration_setOwnKey(TLSConfiguration self, uint8_t* key, int keyLen, const char* keyPassword);
PAL_API bool
TLSConfiguration_setOwnKeyFromFile(TLSConfiguration self, const char* filename, const char* keyPassword);
PAL_API bool
TLSConfiguration_addAllowedCertificate(TLSConfiguration self, uint8_t* certifcate, int certLen);
PAL_API bool
TLSConfiguration_addAllowedCertificateFromFile(TLSConfiguration self, const char* filename);
PAL_API bool
TLSConfiguration_addCACertificate(TLSConfiguration self, uint8_t* certifcate, int certLen);
PAL_API bool
TLSConfiguration_addCACertificateFromFile(TLSConfiguration self, const char* filename);
/**
* \brief Set the renegotiation timeout.
*
* After the timeout elapsed a TLS session renegotiation has to occur.
*
* \param timeInMs session renegotiation timeout in milliseconds
*/
PAL_API void
TLSConfiguration_setRenegotiationTime(TLSConfiguration self, int timeInMs);
PAL_API void
TLSConfiguration_destroy(TLSConfiguration self);
/** @} */
/** @} */
#ifdef __cplusplus
}
#endif
#endif /* SRC_TLS_CONFIG_H_ */