RfidResearchGroup/proxmark3
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fix

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This commit is contained in:
merlokk 2022-07-10 00:54:29 +03:00
parent 374f1907bb
commit fb3990086e
1 changed files with 6 additions and 2 deletions
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8
armsrc/hfsnoop.c
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@ -48,13 +48,16 @@ static void RAMFUNC skipSniff(uint8_t *dest, uint16_t dsize, uint8_t skipMode, u
accum = val & 0xff; accum = val & 0xff;
if (accum < (val >> 8)) if (accum < (val >> 8))
accum = val >> 8; accum = val >> 8;
break;
case HF_SNOOP_SKIP_MIN: case HF_SNOOP_SKIP_MIN:
if (accum > (val & 0xff)) if (accum > (val & 0xff))
accum = val & 0xff; accum = val & 0xff;
if (accum > (val >> 8)) if (accum > (val >> 8))
accum = val >> 8; accum = val >> 8;
break;
case HF_SNOOP_SKIP_AVG: case HF_SNOOP_SKIP_AVG:
accum += (val & 0xff) + (val >> 8); accum += (val & 0xff) + (val & 0xff);
break;
default: { // HF_SNOOP_SKIP_DROP and the rest default: { // HF_SNOOP_SKIP_DROP and the rest
if (ratioindx == 0) if (ratioindx == 0)
accum = val & 0xff; accum = val & 0xff;
@ -63,7 +66,6 @@ static void RAMFUNC skipSniff(uint8_t *dest, uint16_t dsize, uint8_t skipMode, u
ratioindx++; ratioindx++;
if (ratioindx >= skipRatio) { if (ratioindx >= skipRatio) {
ratioindx = 0;
if (skipMode == HF_SNOOP_SKIP_AVG && skipRatio > 0) { if (skipMode == HF_SNOOP_SKIP_AVG && skipRatio > 0) {
accum = accum / (skipRatio * 2); accum = accum / (skipRatio * 2);
if (accum <= 0xff) if (accum <= 0xff)
@ -73,9 +75,11 @@ static void RAMFUNC skipSniff(uint8_t *dest, uint16_t dsize, uint8_t skipMode, u
} else { } else {
*dest = accum; *dest = accum;
} }
dest++; dest++;
dsize --; dsize --;
accum = (skipMode == HF_SNOOP_SKIP_MIN) ? 0xffffffff : 0; accum = (skipMode == HF_SNOOP_SKIP_MIN) ? 0xffffffff : 0;
ratioindx = 0;
} }
} }
} }