RfidResearchGroup/proxmark3
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Remove code duplication.

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This commit is contained in:
Thomas Sutter 2019-10-29 10:00:47 +01:00
parent 271a8ce548
commit 06f3f1b637
1 changed files with 54 additions and 23 deletions
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77
client/cmdhffelica.c
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@ -407,15 +407,61 @@ int send_rd_unencrypted(uint8_t flags, uint16_t datalen, uint8_t *data, bool ver
}
}
/**
* Checks if last known card can be added to data and adds it if possible.
* @param custom_IDm
* @param data
* @return
*/
static bool check_last_idm(uint8_t *data, uint16_t datalen){
if (!add_last_IDm(2, data)) {
PrintAndLogEx(ERR, "No last known card! Use reader first or set a custom IDm!");
return 0;
} else {
PrintAndLogEx(INFO, "Used last known IDm.", sprint_hex(data, datalen));
return 1;
}
}
/**
* Command parser for wrunencrypted.
* @param Cmd input data of the user.
* @return client result code.
*/
static int CmdHFFelicaWriteWithoutEncryption(const char *Cmd) {
if (strlen(Cmd) < 4)
if (strlen(Cmd) < 5)
return usage_hf_felica_write_without_encryption();
//uint8_t data[PM3_CMD_DATA_SIZE];
uint8_t data[PM3_CMD_DATA_SIZE];
bool custom_IDm = false;
strip_cmds(Cmd);
uint16_t datalen = 32; // Length (1), Command ID (1), IDm (8), Number of Service (1), Service Code List(2), Number of Block(1), Block List(3), Block Data(16)
uint8_t paramCount = 0;
uint8_t flags = 0;
int i = 0;
while (Cmd[i] != '\0') {
if (Cmd[i] == '-') {
switch (Cmd[i + 1]) {
case 'H':
case 'h':
return usage_hf_felica_request_response();
case 'i':
paramCount++;
custom_IDm = true;
if (!add_param(Cmd, paramCount, data, 3, 8)) {
return PM3_EINVARG;
}
break;
}
}
i++;
}
data[0] = 0x20; // Static length
data[1] = 0x08; // Command ID
if (!custom_IDm && !check_last_idm(data, datalen)) {
return PM3_EINVARG;
}
flags |= FELICA_APPEND_CRC;
flags |= FELICA_RAW;
return PM3_SUCCESS;
}
@ -464,13 +510,8 @@ static int CmdHFFelicaReadWithoutEncryption(const char *Cmd) {
}
data[0] = 0x10; // Static length
data[1] = 0x06; // Command ID
if (!custom_IDm) {
if (!add_last_IDm(2, data)) {
PrintAndLogEx(ERR, "No last known card! Use reader first or set a custom IDm!");
return PM3_EINVARG;
} else {
PrintAndLogEx(INFO, "Used last known IDm.", sprint_hex(data, datalen));
}
if (!custom_IDm && !check_last_idm(data, datalen)) {
return PM3_EINVARG;
}
// Number of Service 2, Service Code List 4, Number of Block 2, Block List Element 4
uint8_t lengths[] = {2, 4, 2, 4};
@ -559,13 +600,8 @@ static int CmdHFFelicaRequestResponse(const char *Cmd) {
}
data[0] = 0x0A; // Static length
data[1] = 0x04; // Command ID
if (!custom_IDm) {
if (!add_last_IDm(2, data)) {
PrintAndLogEx(ERR, "No last known card! Use reader first or set a custom IDm!");
return PM3_EINVARG;
} else {
PrintAndLogEx(INFO, "Used last known IDm.", sprint_hex(data, datalen));
}
if (!custom_IDm && !check_last_idm(data, datalen)) {
return PM3_EINVARG;
}
AddCrc(data, datalen);
datalen += 2;
@ -658,13 +694,8 @@ static int CmdHFFelicaRequestService(const char *Cmd) {
flags |= FELICA_RAW;
}
datalen = (datalen > PM3_CMD_DATA_SIZE) ? PM3_CMD_DATA_SIZE : datalen;
if (!custom_IDm) {
if (!add_last_IDm(2, data)) {
PrintAndLogEx(ERR, "No last known card! Use reader first or set a custom IDm!");
return PM3_EINVARG;
} else {
PrintAndLogEx(INFO, "Used last known IDm.", sprint_hex(data, datalen));
}
if (!custom_IDm && !check_last_idm(data, datalen)) {
return PM3_EINVARG;
}
data[0] = int_to_hex(&datalen);
data[1] = 0x02; // Service Request Command ID