SMB2_CMACAES_SIZE
unsigned char smb3_signature[SMB2_CMACAES_SIZE];
memset(smb3_signature, 0x0, SMB2_CMACAES_SIZE);
rc = crypto_shash_setkey(shash->tfm, key, SMB2_CMACAES_SIZE);
SMB2_CMACAES_SIZE);
char signature[SMB2_CMACAES_SIZE];
char signature[SMB2_CMACAES_SIZE];