nwkSecurity.c File Reference

Security routines implementation.

Copyright (c) 2014-2018 Microchip Technology Inc. and its subsidiaries.

#include <stdlib.h>
#include <stdint.h>
#include <stdbool.h>
#include <string.h>
#include "sysConfig.h"
#include "sysEncrypt.h"
#include "nwk.h"
#include "nwkTx.h"
#include "nwkFrame.h"
#include "nwkSecurity.h"

Enumerations
enum	{   NWK_SECURITY_STATE_ENCRYPT_PENDING = 0x30,   NWK_SECURITY_STATE_DECRYPT_PENDING = 0x31,   NWK_SECURITY_STATE_PROCESS = 0x32,   NWK_SECURITY_STATE_WAIT = 0x33,   NWK_SECURITY_STATE_CONFIRM = 0x34 }

Functions
void	NWK_SetSecurityKey (uint8_t *key)
void	nwkSecurityInit (void)
	Initializes the Security module. More...
void	nwkSecurityProcess (NwkFrame_t *frame, bool encrypt)
static bool	nwkSecurityProcessMic (void)
static void	nwkSecurityStart (void)
void	nwkSecurityTaskHandler (void)
	Security Module task handler. More...
void	SYS_EncryptConf (void)

Variables
static NwkFrame_t *	nwkSecurityActiveFrame
static uint8_t	nwkSecurityActiveFrames
static bool	nwkSecurityEncrypt
static uint8_t	nwkSecurityOffset
static uint8_t	nwkSecuritySize
static uint32_t	nwkSecurityVector [4]

anonymous enum

Enumerator
NWK_SECURITY_STATE_ENCRYPT_PENDING
NWK_SECURITY_STATE_DECRYPT_PENDING
NWK_SECURITY_STATE_PROCESS
NWK_SECURITY_STATE_WAIT
NWK_SECURITY_STATE_CONFIRM

void NWK_SetSecurityKey

(

uint8_t *

key

)

References NwkIb_t::key, NWK_SECURITY_KEY_SIZE, and nwkIb.

Referenced by appInit().

void nwkSecurityInit

(

void

)

Initializes the Security module.

References nwkSecurityActiveFrames.

Referenced by NWK_Init().

void nwkSecurityProcess	(	NwkFrame_t *	frame,
		bool	encrypt
	)

References NWK_SECURITY_STATE_DECRYPT_PENDING, NWK_SECURITY_STATE_ENCRYPT_PENDING, nwkSecurityActiveFrames, and NwkFrame_t::state.

Referenced by nwkRxTaskHandler(), and nwkTxTaskHandler().

static bool nwkSecurityProcessMic ( void  )

static

References NWK_SECURITY_MIC_SIZE, nwkSecurityEncrypt, nwkSecurityOffset, nwkSecurityVector, NwkFrame_t::payload, and NwkFrame_t::size.

Referenced by nwkSecurityTaskHandler().

static void nwkSecurityStart ( void  )

static

References NwkFrame_t::header, NwkFrameHeader_t::macDstPanId, NWK_SECURITY_MIC_SIZE, NWK_SECURITY_STATE_DECRYPT_PENDING, NWK_SECURITY_STATE_ENCRYPT_PENDING, NWK_SECURITY_STATE_PROCESS, NwkFrameHeader_t::nwkDstAddr, NwkFrameHeader_t::nwkDstEndpoint, NwkFrameHeader_t::nwkFcf, nwkFramePayloadSize(), nwkSecurityEncrypt, nwkSecurityOffset, nwkSecuritySize, nwkSecurityVector, NwkFrameHeader_t::nwkSeq, NwkFrameHeader_t::nwkSrcAddr, NwkFrameHeader_t::nwkSrcEndpoint, NwkFrame_t::size, and NwkFrame_t::state.

Referenced by nwkSecurityTaskHandler().

void nwkSecurityTaskHandler

(

void

)

Security Module task handler.

References NwkIb_t::key, NWK_SECURITY_STATE_CONFIRM, NWK_SECURITY_STATE_DECRYPT_PENDING, NWK_SECURITY_STATE_ENCRYPT_PENDING, NWK_SECURITY_STATE_PROCESS, NWK_SECURITY_STATE_WAIT, nwkFrameNext(), nwkIb, nwkRxDecryptConf(), nwkSecurityActiveFrames, nwkSecurityEncrypt, nwkSecurityProcessMic(), nwkSecurityStart(), nwkSecurityVector, nwkTxEncryptConf(), NwkFrame_t::state, and SYS_EncryptReq().

Referenced by NWK_TaskHandler().

NwkFrame_t* nwkSecurityActiveFrame

static

uint8_t nwkSecurityActiveFrames

static

Referenced by nwkSecurityInit(), nwkSecurityProcess(), and nwkSecurityTaskHandler().

bool nwkSecurityEncrypt

static

Referenced by nwkSecurityProcessMic(), nwkSecurityStart(), nwkSecurityTaskHandler(), and SYS_EncryptConf().

uint8_t nwkSecurityOffset

static

Referenced by nwkSecurityProcessMic(), nwkSecurityStart(), and SYS_EncryptConf().

uint8_t nwkSecuritySize

static

Referenced by nwkSecurityStart(), and SYS_EncryptConf().

uint32_t nwkSecurityVector[4]

static

Referenced by nwkSecurityProcessMic(), nwkSecurityStart(), nwkSecurityTaskHandler(), and SYS_EncryptConf().