netstack-aes.c File Reference

#include "net/netstack.h"
#include "net/packetbuf.h"
#include "net/rime/rimestats.h"
#include "netstack-aes.h"
#include "aes-ccm.h"
#include <string.h>
#include <stdio.h>

Macros
#define	AES_MICLEN
#define	HEADER_LENGTH
#define	NONCE_LEN

Functions
static void	copy_packet (const uint8_t *data, int datalen)
int	netstack_aes_decrypt (void)
int	netstack_aes_encrypt (void)
void	netstack_aes_init (void)
void	netstack_aes_set_active (int a)
void	netstack_aes_set_key (const uint8_t *aes_key)
void	netstack_aes_set_master_key (const uint8_t *aes_key)
int	netstack_aes_verify (void)

Variables
static uint8_t	active = 1
static uint8_t	key [16]
static uint8_t	key_set
struct mac_driver	NETSTACK_AES_MAC
struct network_driver	NETSTACK_AES_NETWORK
static uint8_t	payload_tmp [PACKETBUF_SIZE+AES_MICLEN]

#define AES_MICLEN

Value:

NETSTACK_AES_MICLEN     /* Control level of authentication
                           security. Less than 4 is considered
                           insecure. */

Referenced by netstack_aes_decrypt(), netstack_aes_encrypt(), and netstack_aes_verify().

#define HEADER_LENGTH

Value:

16 /* This is actually protocol dependent, but
                           this setting works for IPv6 with 6lowpan
                           adaptation over 802.15.4. */

Referenced by netstack_aes_decrypt(), netstack_aes_encrypt(), and netstack_aes_verify().

#define NONCE_LEN

Value:

13     /* We use the 802.15.4 header as a nonce,
                           fixed at 13 bytes. */

Referenced by netstack_aes_decrypt(), netstack_aes_encrypt(), and netstack_aes_verify().

static void copy_packet ( const uint8_t *  data, int  datalen  )

static

References packetbuf_attr_copyfrom(), packetbuf_attr_copyto(), and packetbuf_copyfrom().

Referenced by netstack_aes_decrypt(), and netstack_aes_encrypt().

int netstack_aes_decrypt

(

void

)

References active, aes_ccm_decrypt(), AES_MICLEN, c, copy_packet(), HEADER_LENGTH, i, key, key_set, NONCE_LEN, packetbuf_clear(), packetbuf_dataptr(), packetbuf_totlen(), payload_tmp, printf, ret, and RIMESTATS_ADD.

int netstack_aes_encrypt

(

void

)

References active, aes_ccm_encrypt(), AES_MICLEN, c, copy_packet(), HEADER_LENGTH, i, key, key_set, NONCE_LEN, packetbuf_clear(), packetbuf_compact(), packetbuf_hdrptr(), packetbuf_totlen(), payload_tmp, printf, and ret.

void netstack_aes_init

(

void

)

References active, key_set, and printf.

void netstack_aes_set_active

(

int

a

)

References active.

Referenced by PROCESS_THREAD().

void netstack_aes_set_key

(

const uint8_t *

aes_key

)

References key, and key_set.

Referenced by main().

void netstack_aes_set_master_key

(

const uint8_t *

aes_key

)

References key.

int netstack_aes_verify

(

void

)

References aes_ccm_verify(), AES_MICLEN, c, HEADER_LENGTH, i, key, key_set, NONCE_LEN, packetbuf_dataptr(), packetbuf_totlen(), printf, and ret.

uint8_t active = 1

static

Referenced by netstack_aes_decrypt(), netstack_aes_encrypt(), netstack_aes_init(), and netstack_aes_set_active().

uint8_t key[16]

static

Initial value:

=  { 0,0,0,0,0,0,0,0,
                          0,0,0,0,0,0,0,0 }

uint8_t key_set

static

Referenced by netstack_aes_decrypt(), netstack_aes_encrypt(), netstack_aes_init(), netstack_aes_set_key(), and netstack_aes_verify().

struct mac_driver NETSTACK_AES_MAC

struct network_driver NETSTACK_AES_NETWORK

uint8_t payload_tmp[PACKETBUF_SIZE+AES_MICLEN]

static

Referenced by netstack_aes_decrypt(), and netstack_aes_encrypt().