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sm: avoid cppcheck errors (false positive) about unitilized variables

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This commit is contained in:
Matthias Ringwald 2016-10-07 22:01:52 +02:00
parent 4a1feedd8b
commit 4a6806f394
1 changed files with 6 additions and 6 deletions
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12
src/ble/sm.c
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@ -485,7 +485,7 @@ static void sm_aes128_start(sm_key_t key, sm_key_t plaintext, void * context){
// ah(k,r) helper // ah(k,r) helper
// r = padding || r // r = padding || r
// r - 24 bit value // r - 24 bit value
static void sm_ah_r_prime(uint8_t r[3], sm_key_t r_prime){ static void sm_ah_r_prime(uint8_t r[3], uint8_t * r_prime){
// r'= padding || r // r'= padding || r
memset(r_prime, 0, 16); memset(r_prime, 0, 16);
memcpy(&r_prime[13], r, 3); memcpy(&r_prime[13], r, 3);
@ -494,7 +494,7 @@ static void sm_ah_r_prime(uint8_t r[3], sm_key_t r_prime){
// d1 helper // d1 helper
// d' = padding || r || d // d' = padding || r || d
// d,r - 16 bit values // d,r - 16 bit values
static void sm_d1_d_prime(uint16_t d, uint16_t r, sm_key_t d1_prime){ static void sm_d1_d_prime(uint16_t d, uint16_t r, uint8_t * d1_prime){
// d'= padding || r || d // d'= padding || r || d
memset(d1_prime, 0, 16); memset(d1_prime, 0, 16);
big_endian_store_16(d1_prime, 12, r); big_endian_store_16(d1_prime, 12, r);
@ -504,13 +504,13 @@ static void sm_d1_d_prime(uint16_t d, uint16_t r, sm_key_t d1_prime){
// dm helper // dm helper
// r’ = padding || r // r’ = padding || r
// r - 64 bit value // r - 64 bit value
static void sm_dm_r_prime(uint8_t r[8], sm_key_t r_prime){ static void sm_dm_r_prime(uint8_t r[8], uint8_t * r_prime){
memset(r_prime, 0, 16); memset(r_prime, 0, 16);
memcpy(&r_prime[8], r, 8); memcpy(&r_prime[8], r, 8);
} }
// calculate arguments for first AES128 operation in C1 function // calculate arguments for first AES128 operation in C1 function
static void sm_c1_t1(sm_key_t r, uint8_t preq[7], uint8_t pres[7], uint8_t iat, uint8_t rat, sm_key_t t1){ static void sm_c1_t1(sm_key_t r, uint8_t preq[7], uint8_t pres[7], uint8_t iat, uint8_t rat, uint8_t * t1){
// p1 = pres || preq || rat’ || iat’ // p1 = pres || preq || rat’ || iat’
// "The octet of iat’ becomes the least significant octet of p1 and the most signifi- // "The octet of iat’ becomes the least significant octet of p1 and the most signifi-
@ -536,7 +536,7 @@ static void sm_c1_t1(sm_key_t r, uint8_t preq[7], uint8_t pres[7], uint8_t iat,
} }
// calculate arguments for second AES128 operation in C1 function // calculate arguments for second AES128 operation in C1 function
static void sm_c1_t3(sm_key_t t2, bd_addr_t ia, bd_addr_t ra, sm_key_t t3){ static void sm_c1_t3(sm_key_t t2, bd_addr_t ia, bd_addr_t ra, uint8_t * t3){
// p2 = padding || ia || ra // p2 = padding || ia || ra
// "The least significant octet of ra becomes the least significant octet of p2 and // "The least significant octet of ra becomes the least significant octet of p2 and
// the most significant octet of padding becomes the most significant octet of p2. // the most significant octet of padding becomes the most significant octet of p2.
@ -557,7 +557,7 @@ static void sm_c1_t3(sm_key_t t2, bd_addr_t ia, bd_addr_t ra, sm_key_t t3){
log_info_key("t3", t3); log_info_key("t3", t3);
} }
static void sm_s1_r_prime(sm_key_t r1, sm_key_t r2, sm_key_t r_prime){ static void sm_s1_r_prime(sm_key_t r1, sm_key_t r2, uint8_t * r_prime){
log_info_key("r1", r1); log_info_key("r1", r1);
log_info_key("r2", r2); log_info_key("r2", r2);
memcpy(&r_prime[8], &r2[8], 8); memcpy(&r_prime[8], &r2[8], 8);