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btstack_crypto: avoid compile warnings for unimplemented CCM operations with HAVE_AES128 defined

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This commit is contained in:
Matthias Ringwald 2018-06-13 09:21:09 +02:00
parent 7909a4147e
commit ea478a8375
1 changed files with 10 additions and 1 deletions
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11
src/btstack_crypto.c
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@ -120,8 +120,9 @@ static uint8_t btstack_crypto_cmac_block_current;
static uint8_t btstack_crypto_cmac_block_count;
// state for AES-CCM
#ifndef USE_BTSTACK_AES128
static uint8_t btstack_crypto_ccm_s[16];
#endif
#ifdef ENABLE_ECC_P256
@ -302,6 +303,8 @@ static void btstack_crypto_cmac_start(btstack_crypto_aes128_cmac_t * btstack_cry
btstack_crypto_cmac_handle_aes_engine_ready(btstack_crypto_cmac);
}
#ifndef USE_BTSTACK_AES128
/*
To encrypt the message data we use Counter (CTR) mode. We first
define the key stream blocks by:
@ -360,6 +363,7 @@ static void btstack_crypto_ccm_setup_b_0(btstack_crypto_ccm_t * btstack_crypto_c
memcpy(&b0[1], btstack_crypto_ccm->nonce, 13);
big_endian_store_16(b0, 14, btstack_crypto_ccm->message_len);
}
#endif
#ifdef ENABLE_ECC_P256
@ -471,6 +475,9 @@ static void btstack_crypto_ecc_p256_calculate_dhkey_software(btstack_crypto_ecc_
#endif
#ifdef USE_BTSTACK_AES128
// CCM not implemented using software AES128 yet
#else
static void btstack_crypto_ccm_calc_s0(btstack_crypto_ccm_t * btstack_crypto_ccm){
btstack_crypto_ccm->state = CCM_W4_S0;
@ -505,6 +512,7 @@ static void btstack_crypto_ccm_calc_xn(btstack_crypto_ccm_t * btstack_crypto_ccm
memcpy(&btstack_crypto_ccm_buffer[i], &btstack_crypto_ccm->x_i[i], 16 - bytes_to_decrypt);
btstack_crypto_aes128_start(btstack_crypto_ccm->key, btstack_crypto_ccm_buffer);
}
#endif
static void btstack_crypto_ccm_handle_s0(btstack_crypto_ccm_t * btstack_crypto_ccm, const uint8_t * data){
// data is little-endian, flip on the fly
@ -589,6 +597,7 @@ static void btstack_crypto_run(void){
case BTSTACK_CRYPTO_CCM_ENCRYPT_BLOCK:
case BTSTACK_CRYPTO_CCM_DECRYPT_BLOCK:
#ifdef USE_BTSTACK_AES128
UNUSED(btstack_crypto_ccm);
log_error("ccm not implemented for software aes128 yet");
#else
btstack_crypto_ccm = (btstack_crypto_ccm_t *) btstack_crypto;