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More en masse cleanup (whitespace/newlines/headers/etc)

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marcansoft 2010-02-20 21:57:20 +00:00
commit e30c654b19
24 changed files with 683 additions and 674 deletions
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28
armsrc/hitag2.c
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@ -1,13 +1,13 @@
/*
* Hitag2 emulation
*
*
* Contains state and functions for an emulated Hitag2 tag. Offers an entry
* point to handle commands, needs a callback to send response.
*
*
* (c) 2009 Henryk Plötz <henryk@ploetzli.ch>
*/
#include <proxmark3.h>
#include "proxmark3.h"
#include <stdint.h>
#include "apps.h"
@ -19,7 +19,7 @@ struct hitag2_cipher_state {
struct hitag2_tag {
uint32_t uid;
enum {
enum {
TAG_STATE_RESET, // Just powered up, awaiting GetSnr
TAG_STATE_ACTIVATING, // In activation phase (password mode), sent UID, awaiting reader password
TAG_STATE_AUTHENTICATING, // In activation phase (crypto mode), awaiting reader authentication
@ -74,7 +74,7 @@ int hitag2_handle_command(const char* data, const int length, hitag2_response_ca
data = temp;
}
handle_command_retry:
switch(tag.state) {
case TAG_STATE_RESET:
@ -148,8 +148,8 @@ handle_command_retry:
/* transmission error */
DbpString("Transmission error (write) in activated state");
}
}
}
}
case TAG_STATE_WRITING:
if(length == 32) {
@ -159,7 +159,7 @@ handle_command_retry:
done=1;
}
}
if(!done && !retry) {
/* We didn't respond, maybe our state is faulty. Reset and try again. */
retry=1;
@ -205,13 +205,13 @@ static const u32 ht2_f5c = 0x7907287B; // 0111 1001 0000 0111 0010 1000 0111 101
static u32 _f20 (const u64 x)
{
u32 i5;
i5 = ((ht2_f4a >> i4 (x, 1, 2, 4, 5)) & 1)* 1
+ ((ht2_f4b >> i4 (x, 7,11,13,14)) & 1)* 2
+ ((ht2_f4b >> i4 (x,16,20,22,25)) & 1)* 4
+ ((ht2_f4b >> i4 (x,27,28,30,32)) & 1)* 8
+ ((ht2_f4a >> i4 (x,33,42,43,45)) & 1)*16;
return (ht2_f5c >> i5) & 1;
}
@ -219,7 +219,7 @@ static u64 _hitag2_init (const u64 key, const u32 serial, const u32 IV)
{
u32 i;
u64 x = ((key & 0xFFFF) << 32) + serial;
for (i = 0; i < 32; i++)
{
x >>= 1;
@ -231,13 +231,13 @@ static u64 _hitag2_init (const u64 key, const u32 serial, const u32 IV)
static u64 _hitag2_round (u64 *state)
{
u64 x = *state;
x = (x >> 1) +
((((x >> 0) ^ (x >> 2) ^ (x >> 3) ^ (x >> 6)
^ (x >> 7) ^ (x >> 8) ^ (x >> 16) ^ (x >> 22)
^ (x >> 23) ^ (x >> 26) ^ (x >> 30) ^ (x >> 41)
^ (x >> 42) ^ (x >> 43) ^ (x >> 46) ^ (x >> 47)) & 1) << 47);
*state = x;
return _f20 (x);
}
@ -245,7 +245,7 @@ static u64 _hitag2_round (u64 *state)
static u32 _hitag2_byte (u64 * x)
{
u32 i, c;
for (i = 0, c = 0; i < 8; i++) c += (u32) _hitag2_round (x) << (i^7);
return c;
}