simplified lf em command structure

[proxmark3-svn] / client / cmdlfviking.c

diff --git a/client/cmdlfviking.c b/client/cmdlfviking.c
index b3ea51caf90d3e76edda1a6b0c8538aaf501249c..fa073df1f6d9acaec42abe387dc029b83101b127 100644 (file)
--- a/client/cmdlfviking.c
+++ b/client/cmdlfviking.c
@@ -47,8 +47,8 @@ int usage_lf_viking_sim(void) {
 
 uint64_t getVikingBits(uint32_t id) {
        //calc checksum
-       uint8_t checksum = (id>>24) ^ ((id>>16) & 0xFF) ^ ((id>>8) & 0xFF) ^ (id & 0xFF) ^ 0xF2 ^ 0xA8;
-       return (0xF2 << 56) | (id << 8) | checksum;
+       uint8_t checksum = ((id>>24) & 0xFF) ^ ((id>>16) & 0xFF) ^ ((id>>8) & 0xFF) ^ (id & 0xFF) ^ 0xF2 ^ 0xA8;
+       return ((uint64_t)0xF2 << 56) | ((uint64_t)id << 8) | checksum;
 }
 //by marshmellow
 //see ASKDemod for what args are accepted
@@ -66,16 +66,16 @@ int CmdVikingClone(const char *Cmd) {
        uint64_t rawID = 0;
        bool Q5 = false;
        char cmdp = param_getchar(Cmd, 0);
-       if (strlen(Cmd) < 0 || cmdp == 'h' || cmdp == 'H') return usage_lf_viking_clone();
+       if (strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') return usage_lf_viking_clone();
 
-       id = param_get32ex(Cmd, 0, 0, 16)
+       id = param_get32ex(Cmd, 0, 0, 16);
        if (id == 0) return usage_lf_viking_clone();
        if (param_getchar(Cmd, 1)=='Q' || param_getchar(Cmd, 1)=='q')
                Q5 = true;
 
        rawID = getVikingBits(id);
-
-       UsbCommand c = {CMD_VIKING_CLONE_TAG,{rawID >> 32, rawID & 0xFFFF, Q5}};
+       PrintAndLog("Cloning - ID: %08X, Raw: %08X%08X",id,(uint32_t)(rawID >> 32),(uint32_t) (rawID & 0xFFFFFFFF));
+       UsbCommand c = {CMD_VIKING_CLONE_TAG,{rawID >> 32, rawID & 0xFFFFFFFF, Q5}};
        clearCommandBuffer();
        SendCommand(&c);
        //check for ACK
@@ -83,13 +83,14 @@ int CmdVikingClone(const char *Cmd) {
        return 0;
 }
 
-int CmdVikingSim(static char *Cmd) {
+int CmdVikingSim(const char *Cmd) {
        uint32_t id = 0;
        uint64_t rawID = 0;
        uint8_t clk = 32, encoding = 1, separator = 0, invert = 0;
+       char cmdp = param_getchar(Cmd, 0);
 
-       if (strlen(Cmd) < 0 || cmdp == 'h' || cmdp == 'H') return usage_lf_viking_sim();
-       id = param_get32ex(Cmd, 0, 0, 16)
+       if (strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') return usage_lf_viking_sim();
+       id = param_get32ex(Cmd, 0, 0, 16);
        if (id == 0) return usage_lf_viking_sim();
 
        rawID = getVikingBits(id);
@@ -104,6 +105,7 @@ int CmdVikingSim(static char *Cmd) {
   num_to_bytebits(rawID, 64, c.d.asBytes);
        clearCommandBuffer();
   SendCommand(&c);
+  return 0;
 }
 
 static command_t CommandTable[] = {