From 1ee624fe6a48d83544df3ce2078e127390551e15 Mon Sep 17 00:00:00 2001 From: grauerfuchs <42082416+grauerfuchs@users.noreply.github.com> Date: Sun, 19 Aug 2018 11:14:52 -0400 Subject: [PATCH 1/1] Adding native support for HID long-format Removal of "l" flag for long writes; not needed anymore. Added HID Corporate 1000 48-bit format to known formats list Simulation not yet updated; need to modify ARM commands to support it Completed parity support on all included HID formats --- client/cmdlfhid.c | 332 +++++++++++++++++++++++++++------------------- client/cmdlfhid.h | 15 ++- 2 files changed, 202 insertions(+), 145 deletions(-) diff --git a/client/cmdlfhid.c b/client/cmdlfhid.c index 433a093d..1a9c3477 100644 --- a/client/cmdlfhid.c +++ b/client/cmdlfhid.c @@ -29,109 +29,146 @@ #include "cmddata.h" //for g_debugMode, demodbuff cmds #include "lfdemod.h" // for HIDdemodFSK #include "parity.h" // for parity -#include "util.h" // for param_get8,32 +#include "util.h" // for param_get8,32,64 static int CmdHelp(const char *Cmd); - /** - * Packs a "short" (<38-bit) HID ID from component parts. - * - * This only works with 26, 34, 35 and 37 bit card IDs. + * Packs an HID ID from component parts. * - * NOTE: Parity calculation is only supported on 26-bit tags. Other card lengths - * may have invalid parity. + * This only works with 26, 34, 35, 37, and 48 bit card IDs. * * Returns false on invalid inputs. */ -bool pack_short_hid(/* out */ uint32_t *hi, /* out */ uint32_t *lo, /* in */ const short_hid_info *info) { - uint32_t high = 0, low = 0; +bool pack_hid(/* out */ uint32_t *hi2, /* out */ uint32_t *hi, /* out */ uint32_t *lo, /* in */ const hid_info *info) { + uint32_t higher = 0, high = 0, low = 0; switch (info->fmtLen) { - case 26: // HID H10301 - low |= (info->cardnum & 0xffff) << 1; - low |= (info->fc & 0xff) << 17; + case 26: // HID H10301 + low |= (info->cardnum & 0xffff) << 1; + low |= (info->fc & 0xff) << 17; - if (info->parityValid) { - // Calculate parity - low |= oddparity32((low >> 1) & 0xfff) & 1; - low |= (evenparity32((low >> 13) & 0xfff) & 1) << 25; - } + if (info->parityValid) { + // Calculate parity + low |= oddparity32((low >> 1) & 0xfff) & 1; + low |= (evenparity32((low >> 13) & 0xfff) & 1) << 25; + } break; - case 34: + case 34: // H10306 low |= (info->cardnum & 0xffff) << 1; low |= (info->fc & 0x7fff) << 17; high |= (info->fc & 0x8000) >> 15; - // TODO: Calculate parity + + if (info->parityValid) { + // Calculate parity + high |= (evenparity32((high & 0x00000001) ^ (low & 0xFFFE0000)) & 1) << 1; + low |= (oddparity32(low & 0x0001FFFE) & 1); + } break; - case 35: + case 35: // (Corporate 1000 35-bit) low |= (info->cardnum & 0xfffff) << 1; low |= (info->fc & 0x7ff) << 21; high |= (info->fc & 0x800) >> 11; - // TODO: Calculate parity + + if (info->parityValid) { + // Calculate parity + high |= (evenparity32((high & 0x00000001) ^ (low & 0xB6DB6DB6)) & 1) << 1; + low |= (oddparity32( (high & 0x00000003) ^ (low & 0x6DB6DB6C)) & 1); + high |= (oddparity32( (high & 0x00000003) ^ (low & 0xFFFFFFFF)) & 1) << 2; + } break; - case 37: + case 37: //H10304 low |= (info->cardnum & 0x7ffff) << 1; low |= (info->fc & 0xfff) << 20; high |= (info->fc & 0xf000) >> 12; - // TODO: Calculate parity + + if (info->parityValid) { + // Calculate parity + high |= (evenparity32((high & 0x0000000F) ^ (low & 0xFFFC0000)) & 1) << 4; + low |= (oddparity32(low & 0x0007FFFE) & 1); + } + break; + + case 48: // Corporate 1000 48-bit + low |= (info->cardnum & 0x7FFFFF) << 1; + low |= (info->fc & 0xff) << 24; + high |= (info->fc & 0x3FFF00) >> 8; + + if (info->parityValid) { + // Calculate parity + high |= (evenparity32((high & 0x00001B6D) ^ (low & 0xB6DB6DB6)) & 1) << 14; + low |= (oddparity32( (high & 0x000036DB) ^ (low & 0x6DB6DB6C)) & 1); + high |= (oddparity32( (high & 0x00007FFF) ^ (low & 0xFFFFFFFF)) & 1) << 15; + } break; default: // Invalid / unsupported length return false; } - - // Set the highest bit - if (info->fmtLen != 37) { + + // Set the format length bits + if (info->fmtLen < 37) { // Bit 37 is always set high |= 0x20; // Set the bit corresponding to the length. - if (info->fmtLen < 32) { + if (info->fmtLen < 32) low |= 1 << info->fmtLen; - } else { + else high |= 1 << (info->fmtLen - 32); - } + + } else if (info->fmtLen > 37){ + if (info->fmtLen < 64) + high |= 1 << (info->fmtLen - 32); + else + higher |= 1 << (info->fmtLen - 64); } - // Return result only if successful. + *hi2 = higher; *hi = high; *lo = low; return true; } - /** - * Unpacks a "short" (<38-bit) HID ID into its component parts. + * Unpacks an HID ID into its component parts. * - * This only works with 26, 34, 35 and 37 bit card IDs. - * - * NOTE: Parity checking is only supported on 26-bit tags. + * This only works with 26, 34, 35, 37, and 48 bit card IDs. * * Returns false on invalid inputs. */ -bool unpack_short_hid(short_hid_info *out, uint32_t hi, uint32_t lo) { - memset(out, 0, sizeof(short_hid_info)); - - if (((hi >> 5) & 1) == 1) { - // if bit 38 is set then < 37 bit format is used - uint32_t lo2 = 0; - // get bits 21-37 to check for format len bit - lo2 = (((hi & 31) << 12) | (lo >> 20)); - uint8_t idx3 = 1; - // find last bit set to 1 (format len bit) - while (lo2 > 1) { - lo2 = lo2 >> 1; - idx3++; - } - - out->fmtLen = idx3 + 19; +bool unpack_hid(hid_info *out, uint32_t hi2, uint32_t hi, uint32_t lo) { + memset(out, 0, sizeof(hid_info)); + uint8_t fmtLen = 0; + + uint32_t hFmt; // for calculating card length + if ((hi2 & 0x000FFFFF) > 0) { // > 64 bits + hFmt = hi2 & 0x000FFFFF; + fmtLen = 64; + } else if ((hi & 0xFFFFFFC0) > 0) { // < 63-38 bits + hFmt = hi & 0xFFFFFFC0; + fmtLen = 32; + } else if ((hi & 0x00000020) == 0) { // 37 bits + hFmt = 0; + fmtLen = 37; + } else if ((hi & 0x0000001F) > 0){ // 36-32 bits + hFmt = hi & 0x0000001F; + fmtLen = 32; + } else { // <32 bits + hFmt = lo; + fmtLen = 0; + } - switch (out->fmtLen) { + while (hFmt > 1) { + hFmt >>= 1; + fmtLen++; + } + out->fmtLen = fmtLen; + switch (out->fmtLen) { case 26: // HID H10301 out->cardnum = (lo >> 1) & 0xFFFF; out->fc = (lo >> 17) & 0xFF; @@ -148,44 +185,80 @@ bool unpack_short_hid(short_hid_info *out, uint32_t hi, uint32_t lo) { ((evenparity32((lo >> 13) & 0xFFF) & 1) == ((lo >> 25) & 1)); break; - case 34: + case 34: // HID H10306 out->cardnum = (lo >> 1) & 0xFFFF; out->fc = ((hi & 1) << 15) | (lo >> 17); - // TODO: Calculate parity + out->parityValid = + ((evenparity32((hi & 0x00000001) ^ (lo & 0xFFFE0000)) & 1) == ((hi >> 1) & 1)) && + ((oddparity32(lo & 0x0001FFFE) & 1) == ((lo & 1))); break; - case 35: + case 35: // HID Corporate 1000-35 out->cardnum = (lo >> 1) & 0xFFFFF; out->fc = ((hi & 1) << 11) | (lo >> 21); - // TODO: Calculate parity + out->parityValid = + (evenparity32((hi & 0x00000001) ^ (lo & 0xB6DB6DB6)) == ((hi >> 1) & 1)) && + (oddparity32( (hi & 0x00000003) ^ (lo & 0x6DB6DB6C)) == ((lo >> 0) & 1)) && + (oddparity32( (hi & 0x00000003) ^ (lo & 0xFFFFFFFF)) == ((hi >> 2) & 1)); + if (g_debugMode) { + PrintAndLog("Parity check: calculated {%d, %d, %d}, provided {%d, %d, %d}", + evenparity32((hi & 0x00000001) ^ (lo & 0xB6DB6DB6)), + oddparity32( (hi & 0x00000003) ^ (lo & 0x6DB6DB6C)), + oddparity32( (hi & 0x00000003) ^ (lo & 0xFFFFFFFF)), + ((hi >> 1) & 1), + ((lo >> 0) & 1), + ((hi >> 2) & 1) + ); + } + break; + + case 37: // HID H10304 + out->fmtLen = 37; + out->cardnum = (lo >> 1) & 0x7FFFF; + out->fc = ((hi & 0xF) << 12) | (lo >> 20); + out->parityValid = + (evenparity32((hi & 0x0000000F) ^ (lo & 0xFFFC0000)) == ((hi >> 4) & 1)) && + (oddparity32( lo & 0x0007FFFE) == (lo & 1)); + break; + + case 48: // HID Corporate 1000-48 + out->cardnum = (lo >> 1) & 0x7FFFFF; //Start 24, 23 length + out->fc = ((hi & 0x3FFF) << 8 ) | (lo >> 24); //Start 2, 22 length + out->parityValid = + (evenparity32((hi & 0x00001B6D) ^ (lo & 0xB6DB6DB6)) == ((hi >> 14) & 1)) && + (oddparity32( (hi & 0x000036DB) ^ (lo & 0x6DB6DB6C)) == ((lo >> 0) & 1)) && + (oddparity32( (hi & 0x00007FFF) ^ (lo & 0xFFFFFFFF)) == ((hi >> 15) & 1)); + if (g_debugMode) { + PrintAndLog("Parity check: calculated {%d, %d, %d}, provided {%d, %d, %d}", + evenparity32((hi & 0x00001B6D) ^ (lo & 0xB6DB6DB6)), + oddparity32( (hi & 0x000036DB) ^ (lo & 0x6DB6DB6C)), + oddparity32( (hi & 0x00007FFF) ^ (lo & 0xFFFFFFFF)), + ((hi >> 14) & 1), + ((lo >> 0) & 1), + ((hi >> 15) & 1) + ); + } break; default: return false; - } - } else { - // If bit 38 is not set, then 37 bit format is used - out->fmtLen = 37; - out->cardnum = (lo >> 1) & 0x7FFFF; - out->fc = ((hi & 0xF) << 12) | (lo >> 20); - // TODO: Calculate parity } return true; } - /** - * Converts a hex string to component "hi" and "lo" 32-bit integers, one nibble + * Converts a hex string to component "hi2", "hi" and "lo" 32-bit integers, one nibble * at a time. * * Returns the number of nibbles (4 bits) entered. */ -int hexstring_to_int64(/* out */ uint32_t* hi, /* out */ uint32_t* lo, const char* str) { +int hexstring_to_int96(/* out */ uint32_t* hi2,/* out */ uint32_t* hi, /* out */ uint32_t* lo, const char* str) { // TODO: Replace this with param_gethex when it supports arbitrary length // inputs. int n = 0, i = 0; while (sscanf(&str[i++], "%1x", &n ) == 1) { + *hi2 = (*hi2 << 4) | (*hi >> 28); *hi = (*hi << 4) | (*lo >> 28); *lo = (*lo << 4) | (n & 0xf); } @@ -227,24 +300,24 @@ int CmdFSKdemodHID(const char *Cmd) if (g_debugMode) PrintAndLog("DEBUG: Error - no values found"); return 0; } - if (hi2 != 0){ //extra large HID tags - PrintAndLog("HID Prox TAG ID: %x%08x%08x (%d)", - (unsigned int) hi2, (unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF); - } - else { //standard HID tags <38 bits - short_hid_info card_info; - bool ret = unpack_short_hid(&card_info, (uint32_t)hi, (uint32_t)lo); + + hid_info card_info; + bool ret = unpack_hid(&card_info, (uint32_t)hi2, (uint32_t)hi, (uint32_t)lo); + + if (hi2 != 0) + PrintAndLog("HID Prox TAG ID: %x%08x%08x (%d) - Format Len: %u bits - FC: %u - Card: %u", + (unsigned int) hi2, (unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF, + card_info.fmtLen, card_info.fc, card_info.cardnum); + else PrintAndLog("HID Prox TAG ID: %x%08x (%d) - Format Len: %u bits - FC: %u - Card: %u", (unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF, card_info.fmtLen, card_info.fc, card_info.cardnum); - if (card_info.fmtLen == 26) { - PrintAndLog("Parity: %s", card_info.parityValid ? "valid" : "invalid"); - } - - if (!ret) { - PrintAndLog("Invalid or unsupported tag length."); - } + if (card_info.fmtLen == 26 || card_info.fmtLen == 35 || card_info.fmtLen == 48) { + PrintAndLog("Parity: %s", card_info.parityValid ? "valid" : "invalid"); + } + if (!ret) { + PrintAndLog("Invalid or unsupported tag length."); } setDemodBuf(BitStream,BitLen,idx); setClockGrid(50, waveIdx + (idx*50)); @@ -267,9 +340,9 @@ int CmdHIDReadFSK(const char *Cmd) int CmdHIDSim(const char *Cmd) { - uint32_t hi = 0, lo = 0; - hexstring_to_int64(&hi, &lo, Cmd); - if (hi >= 0x40) { + uint32_t hi2 = 0, hi = 0, lo = 0; + hexstring_to_int96(&hi2, &hi, &lo, Cmd); + if (hi >= 0x40 || hi2 != 0) { PrintAndLog("This looks like a long tag ID. Use 'lf simfsk' for long tags. Aborting!"); return 0; } @@ -286,30 +359,13 @@ int CmdHIDClone(const char *Cmd) { unsigned int hi2 = 0, hi = 0, lo = 0; UsbCommand c; - - if (strchr(Cmd,'l') != 0) { - int n = 0, i = 0; - - while (sscanf(&Cmd[i++], "%1x", &n ) == 1) { - hi2 = (hi2 << 4) | (hi >> 28); - hi = (hi << 4) | (lo >> 28); - lo = (lo << 4) | (n & 0xf); - } - + hexstring_to_int96(&hi2, &hi, &lo, Cmd); + + if (hi >= 0x40 || hi2 != 0) { PrintAndLog("Cloning tag with long ID %x%08x%08x", hi2, hi, lo); - c.d.asBytes[0] = 1; - } - else { - hexstring_to_int64(&hi, &lo, Cmd); - if (hi >= 0x40) { - PrintAndLog("This looks like a long tag ID. Aborting!"); - return 0; - } - + } else { PrintAndLog("Cloning tag with ID %x%08x", hi, lo); - - hi2 = 0; c.d.asBytes[0] = 0; } @@ -324,31 +380,32 @@ int CmdHIDClone(const char *Cmd) int CmdHIDPack(const char *Cmd) { - uint32_t hi = 0, lo = 0; - short_hid_info card_info; - + uint32_t hi2 = 0, hi = 0, lo = 0; + if (strlen(Cmd)<3) { PrintAndLog("Usage: lf hid pack "); PrintAndLog(" sample: lf hid pack 26 123 4567"); return 0; } + uint8_t fmtLen = param_get8(Cmd, 0); - card_info.fmtLen = param_get8(Cmd, 0); + hid_info card_info; + card_info.fmtLen = fmtLen; card_info.fc = param_get32ex(Cmd, 1, 0, 10); - card_info.cardnum = param_get32ex(Cmd, 2, 0, 10); + card_info.cardnum = param_get64ex(Cmd, 2, 0, 10); card_info.parityValid = true; - // TODO - if (card_info.fmtLen != 26) { - PrintAndLog("Warning: Parity bits are only calculated for 26 bit IDs -- this may be invalid!"); - } - - bool ret = pack_short_hid(&hi, &lo, &card_info); - + bool ret = pack_hid(&hi2, &hi, &lo, &card_info); if (ret) { - PrintAndLog("HID Prox TAG ID: %x%08x (%d) - Format Len: %u bits - FC: %u - Card: %u", - (unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF, - card_info.fmtLen, card_info.fc, card_info.cardnum); + if (hi2 != 0) { + PrintAndLog("HID Prox TAG ID: %x%08x%08x (%d) - Format Len: %u bits - FC: %u - Card: %u", + (unsigned int) hi2, (unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF, + card_info.fmtLen, card_info.fc, card_info.cardnum); + } else { + PrintAndLog("HID Prox TAG ID: %x%08x (%d) - Format Len: %u bits - FC: %u - Card: %u", + (unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF, + card_info.fmtLen, card_info.fc, card_info.cardnum); + } } else { PrintAndLog("Invalid or unsupported tag length."); } @@ -358,30 +415,29 @@ int CmdHIDPack(const char *Cmd) { int CmdHIDUnpack(const char *Cmd) { - uint32_t hi = 0, lo = 0; + uint32_t hi2 = 0, hi = 0, lo = 0; if (strlen(Cmd)<1) { PrintAndLog("Usage: lf hid unpack "); PrintAndLog(" sample: lf hid unpack 2006f623ae"); return 0; } - hexstring_to_int64(&hi, &lo, Cmd); - if (hi >= 0x40) { - PrintAndLog("This looks like a long tag ID. Aborting!"); - return 0; - } - - short_hid_info card_info; - bool ret = unpack_short_hid(&card_info, hi, lo); + hexstring_to_int96(&hi2, &hi, &lo, Cmd); + + hid_info card_info; + bool ret = unpack_hid(&card_info, hi2, hi, lo); - PrintAndLog("HID Prox TAG ID: %x%08x (%d) - Format Len: %u bits - FC: %u - Card: %u", - (unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF, - card_info.fmtLen, card_info.fc, card_info.cardnum); - - if (card_info.fmtLen == 26) { - PrintAndLog("Parity: %s", card_info.parityValid ? "valid" : "invalid"); + if (hi2 != 0) { + PrintAndLog("HID Prox TAG ID: %x%08x%08x (%d) - Format Len: %u bits - FC: %u - Card: %u", + (unsigned int) hi2, (unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF, + card_info.fmtLen, card_info.fc, card_info.cardnum); + } else { + PrintAndLog("HID Prox TAG ID: %x%08x (%d) - Format Len: %u bits - FC: %u - Card: %u", + (unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF, + card_info.fmtLen, card_info.fc, card_info.cardnum); } - + PrintAndLog("Parity: %s", card_info.parityValid ? "valid" : "invalid"); + if (!ret) { PrintAndLog("Invalid or unsupported tag length."); } @@ -395,9 +451,9 @@ static command_t CommandTable[] = {"demod", CmdFSKdemodHID, 1, "Demodulate HID Prox from GraphBuffer"}, {"read", CmdHIDReadFSK, 0, "['1'] Realtime HID FSK Read from antenna (option '1' for one tag only)"}, {"sim", CmdHIDSim, 0, " -- HID tag simulator"}, - {"clone", CmdHIDClone, 0, " ['l'] -- Clone HID to T55x7 (tag must be in antenna)(option 'l' for 84bit ID)"}, - {"pack", CmdHIDPack, 1, " -- packs a <38 bit (short) HID ID from its length, facility code and card number"}, - {"unpack", CmdHIDUnpack, 1, " -- unpacks a <38 bit (short) HID ID to its length, facility code and card number"}, + {"clone", CmdHIDClone, 0, " -- Clone HID to T55x7 (tag must be in antenna)"}, + {"pack", CmdHIDPack, 1, " -- packs an HID ID from its length, facility code and card number"}, + {"unpack", CmdHIDUnpack, 1, " -- unpacks an HID ID to its length, facility code and card number"}, {NULL, NULL, 0, NULL} }; diff --git a/client/cmdlfhid.h b/client/cmdlfhid.h index e53a95c6..463be56f 100644 --- a/client/cmdlfhid.h +++ b/client/cmdlfhid.h @@ -14,7 +14,7 @@ #include #include -// Structure for unpacked "short" (<38 bits) HID Prox tags. +// Structure for unpacked HID Prox tags. typedef struct { // Format length, in bits. uint8_t fmtLen; @@ -23,20 +23,21 @@ typedef struct { uint32_t fc; // Card number. - uint32_t cardnum; + uint64_t cardnum; // Parity validity. // - // When used with pack_short_hid, this determines if we should calculate + // When used with pack_hid, this determines if we should calculate // parity values for the ID. // - // When used with unpack_short_hid, this indicates if we got valid parity + // When used with unpack_hid, this indicates if we got valid parity // values for the ID. bool parityValid; -} short_hid_info; +} hid_info; + +bool pack_hid(/* out */ uint32_t *hi2, /* out */ uint32_t *hi, /* out */ uint32_t *lo, /* in */ const hid_info *info); +bool unpack_hid(hid_info* out, uint32_t hi2, uint32_t hi, uint32_t lo); -bool pack_short_hid(/* out */ uint32_t *hi, /* out */ uint32_t *lo, /* in */ const short_hid_info *info); -bool unpack_short_hid(short_hid_info* out, uint32_t hi, uint32_t lo); int CmdLFHID(const char *Cmd); int CmdFSKdemodHID(const char *Cmd); -- 2.39.5