client/src/cmdhfseos.c

   1 //-----------------------------------------------------------------------------
   2 // Copyright (C) 2021 iceman
   3 //
   4 // This code is licensed to you under the terms of the GNU GPL, version 2 or,
   5 // at your option, any later version. See the LICENSE.txt file for the text of
   6 // the license.
   7 //-----------------------------------------------------------------------------
   8 // SEOS commands
   9 //-----------------------------------------------------------------------------
  10 #include "cmdhfseos.h"
  11 #include <stdio.h>
  12 #include <string.h>
  13 #include <ctype.h>              // tolower
  14 #include "cliparser.h"
  15 #include "cmdparser.h"          // command_t
  16 #include "comms.h"              // clearCommandBuffer
  17 #include "cmdtrace.h"
  18 #include "crc16.h"
  19 #include "ui.h"
  20 #include "cmdhf14a.h"           // manufacture
  21 #include "protocols.h"          // definitions of ISO14A/7816 protocol
  22 #include "iso7816/apduinfo.h"       // GetAPDUCodeDescription
  23 #include "crypto/asn1utils.h"   // ASN1 decode / print
  24
  25 static int CmdHelp(const char *Cmd);
  26
  27 static uint16_t get_sw(uint8_t *d, uint8_t n) {
  28     if (n < 2)
  29         return 0;
  30
  31     n -= 2;
  32     return d[n] * 0x0100 + d[n + 1];
  33 }
  34
  35 static int seos_select(void) {
  36     bool activate_field = true;
  37     bool keep_field_on = true;
  38     uint8_t response[PM3_CMD_DATA_SIZE];
  39     int resplen = 0;
  40
  41     // ---------------  Select SEOS applet ----------------
  42     uint8_t aSELECT_AID[80];
  43     int aSELECT_AID_n = 0;
  44     param_gethex_to_eol("00a404000aa000000440000101000100", 0, aSELECT_AID, sizeof(aSELECT_AID), &aSELECT_AID_n);
  45     int res = ExchangeAPDU14a(aSELECT_AID, aSELECT_AID_n, activate_field, keep_field_on, response, sizeof(response), &resplen);
  46     if (res != PM3_SUCCESS) {
  47         DropField();
  48         return res;
  49     }
  50
  51     if (resplen < 2) {
  52         DropField();
  53         return PM3_ESOFT;
  54     }
  55
  56     uint16_t sw = get_sw(response, resplen);
  57     if (sw != 0x9000) {
  58         PrintAndLogEx(ERR, "Selecting SEOS applet aid failed (%04x - %s).", sw, GetAPDUCodeDescription(sw >> 8, sw & 0xff));
  59         DropField();
  60         return PM3_ESOFT;
  61     }
  62
  63     activate_field = false;
  64     keep_field_on = false;
  65     // ---------------  CC file reading ----------------
  66
  67     uint8_t aSELECT_FILE_ADF[30];
  68     int aSELECT_FILE_ADF_n = 0;
  69     param_gethex_to_eol("80a504001306112b0601040181e43801010201180101020200", 0, aSELECT_FILE_ADF, sizeof(aSELECT_FILE_ADF), &aSELECT_FILE_ADF_n);
  70     res = ExchangeAPDU14a(aSELECT_FILE_ADF, aSELECT_FILE_ADF_n, activate_field, keep_field_on, response, sizeof(response), &resplen);
  71     if (res != PM3_SUCCESS) {
  72         DropField();
  73         return res;
  74     }
  75
  76     sw = get_sw(response, resplen);
  77     if (sw != 0x9000) {
  78         PrintAndLogEx(ERR, "Selecting ADF file failed (%04x - %s).", sw, GetAPDUCodeDescription(sw >> 8, sw & 0xff));
  79         DropField();
  80         return PM3_ESOFT;
  81     }
  82
  83     // remove the 2byte SW
  84     asn1_print(response, resplen - 2, "  ");
  85     return PM3_SUCCESS;
  86 }
  87
  88 int infoSeos(bool verbose) {
  89     int res = seos_select();
  90     if (res == PM3_SUCCESS) {
  91         PrintAndLogEx(NORMAL, "");
  92         PrintAndLogEx(INFO, "--- " _CYAN_("Tag Information") " ---------------------------");
  93     }
  94     return PM3_SUCCESS;
  95 }
  96
  97 static int CmdHfSeosInfo(const char *Cmd) {
  98     CLIParserContext *ctx;
  99     CLIParserInit(&ctx, "hf seos info",
 100                   "Get info from SEOS tags",
 101                   "hf seos info");
 102
 103     void *argtable[] = {
 104         arg_param_begin,
 105         arg_param_end
 106     };
 107     CLIExecWithReturn(ctx, Cmd, argtable, true);
 108     CLIParserFree(ctx);
 109     return infoSeos(true);
 110 }
 111
 112 static int CmdHfSeosList(const char *Cmd) {
 113     return CmdTraceListAlias(Cmd, "hf seos", "7816");
 114 }
 115
 116 static command_t CommandTable[] = {
 117     {"help",    CmdHelp,        AlwaysAvailable, "This help"},
 118     {"info",    CmdHfSeosInfo,  IfPm3NfcBarcode, "Tag information"},
 119     {"list",    CmdHfSeosList,  AlwaysAvailable, "List SEOS history"},
 120     {NULL, NULL, NULL, NULL}
 121 };
 122
 123 static int CmdHelp(const char *Cmd) {
 124     (void)Cmd; // Cmd is not used so far
 125     CmdsHelp(CommandTable);
 126     return PM3_SUCCESS;
 127 }
 128
 129 int CmdHFSeos(const char *Cmd) {
 130     clearCommandBuffer();
 131     return CmdsParse(CommandTable, Cmd);
 132 }