mirror of
https://github.com/RfidResearchGroup/proxmark3.git
synced 2024-11-14 05:41:43 +08:00
402 lines
10 KiB
C
402 lines
10 KiB
C
//-----------------------------------------------------------------------------
|
|
// Copyright (C) 2018 Merlok
|
|
//
|
|
// This code is licensed to you under the terms of the GNU GPL, version 2 or,
|
|
// at your option, any later version. See the LICENSE.txt file for the text of
|
|
// the license.
|
|
//-----------------------------------------------------------------------------
|
|
// EMV json logic
|
|
//-----------------------------------------------------------------------------
|
|
|
|
#include "emvjson.h"
|
|
#include <ctype.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <inttypes.h>
|
|
#include <string.h>
|
|
#include "util.h"
|
|
#include "ui.h"
|
|
#include "proxmark3.h"
|
|
#include "emv_tags.h"
|
|
|
|
static const ApplicationDataElm ApplicationData[] = {
|
|
{0x82, "AIP"},
|
|
{0x94, "AFL"},
|
|
|
|
{0x5A, "PAN"},
|
|
{0x5F34, "PANSeqNo"},
|
|
{0x5F24, "ExpirationDate"},
|
|
{0x5F25, "EffectiveDate"},
|
|
{0x5F28, "IssuerCountryCode"},
|
|
|
|
{0x50, "ApplicationLabel"},
|
|
{0x9F08, "VersionNumber"},
|
|
{0x9F42, "CurrencyCode"},
|
|
{0x5F2D, "LanguagePreference"},
|
|
{0x87, "PriorityIndicator"},
|
|
{0x9F36, "ATC"}, //Application Transaction Counter
|
|
|
|
{0x5F20, "CardholderName"},
|
|
|
|
{0x9F38, "PDOL"},
|
|
{0x8C, "CDOL1"},
|
|
{0x8D, "CDOL2"},
|
|
|
|
{0x9F07, "AUC"}, // Application Usage Control
|
|
{0x9F6C, "CTQ"},
|
|
{0x8E, "CVMList"},
|
|
{0x9F0D, "IACDefault"},
|
|
{0x9F0E, "IACDeny"},
|
|
{0x9F0F, "IACOnline"},
|
|
|
|
{0x8F, "CertificationAuthorityPublicKeyIndex"},
|
|
{0x9F32, "IssuerPublicKeyExponent"},
|
|
{0x92, "IssuerPublicKeyRemainder"},
|
|
{0x90, "IssuerPublicKeyCertificate"},
|
|
{0x9F47, "ICCPublicKeyExponent"},
|
|
{0x9F46, "ICCPublicKeyCertificate"},
|
|
|
|
{0x00, "end..."}
|
|
};
|
|
int ApplicationDataLen = sizeof(ApplicationData) / sizeof(ApplicationDataElm);
|
|
|
|
char* GetApplicationDataName(tlv_tag_t tag) {
|
|
for (int i = 0; i < ApplicationDataLen; i++)
|
|
if (ApplicationData[i].Tag == tag)
|
|
return ApplicationData[i].Name;
|
|
|
|
return NULL;
|
|
}
|
|
|
|
int JsonSaveJsonObject(json_t *root, char *path, json_t *value) {
|
|
json_error_t error;
|
|
|
|
if (strlen(path) < 1)
|
|
return 1;
|
|
|
|
if (path[0] == '$') {
|
|
if (json_path_set(root, path, value, 0, &error)) {
|
|
PrintAndLog("ERROR: can't set json path: ", error.text);
|
|
return 2;
|
|
} else {
|
|
return 0;
|
|
}
|
|
} else {
|
|
return json_object_set_new(root, path, value);
|
|
}
|
|
}
|
|
|
|
int JsonSaveInt(json_t *root, char *path, int value) {
|
|
return JsonSaveJsonObject(root, path, json_integer(value));
|
|
}
|
|
|
|
int JsonSaveStr(json_t *root, char *path, char *value) {
|
|
return JsonSaveJsonObject(root, path, json_string(value));
|
|
};
|
|
|
|
int JsonSaveBufAsHexCompact(json_t *elm, char *path, uint8_t *data, size_t datalen) {
|
|
char * msg = sprint_hex_inrow(data, datalen);
|
|
if (msg && strlen(msg) && msg[strlen(msg) - 1] == ' ')
|
|
msg[strlen(msg) - 1] = '\0';
|
|
|
|
return JsonSaveStr(elm, path, msg);
|
|
}
|
|
|
|
int JsonSaveBufAsHex(json_t *elm, char *path, uint8_t *data, size_t datalen) {
|
|
char * msg = sprint_hex(data, datalen);
|
|
if (msg && strlen(msg) && msg[strlen(msg) - 1] == ' ')
|
|
msg[strlen(msg) - 1] = '\0';
|
|
|
|
return JsonSaveStr(elm, path, msg);
|
|
}
|
|
|
|
int JsonSaveHex(json_t *elm, char *path, uint64_t data, int datalen) {
|
|
uint8_t bdata[8] = {0};
|
|
int len = 0;
|
|
if (!datalen) {
|
|
for (uint64_t u = 0xffffffffffffffff; u; u = u << 8) {
|
|
if (!(data & u)) {
|
|
break;
|
|
}
|
|
len++;
|
|
}
|
|
if (!len)
|
|
len = 1;
|
|
} else {
|
|
len = datalen;
|
|
}
|
|
num_to_bytes(data, len, bdata);
|
|
|
|
return JsonSaveBufAsHex(elm, path, bdata, len);
|
|
}
|
|
|
|
int JsonSaveTLVValue(json_t *root, char *path, struct tlvdb *tlvdbelm) {
|
|
const struct tlv *tlvelm = tlvdb_get_tlv(tlvdbelm);
|
|
if (tlvelm)
|
|
return JsonSaveBufAsHex(root, path, (uint8_t *)tlvelm->value, tlvelm->len);
|
|
else
|
|
return 1;
|
|
}
|
|
|
|
int JsonSaveTLVElm(json_t *elm, char *path, struct tlv *tlvelm, bool saveName, bool saveValue, bool saveAppDataLink) {
|
|
json_error_t error;
|
|
|
|
if (strlen(path) < 1 || !tlvelm)
|
|
return 1;
|
|
|
|
if (path[0] == '$') {
|
|
|
|
json_t *obj = json_path_get(elm, path);
|
|
if (!obj) {
|
|
obj = json_object();
|
|
|
|
if (json_is_array(elm)) {
|
|
if (json_array_append_new(elm, obj)) {
|
|
PrintAndLog("ERROR: can't append array: %s", path);
|
|
return 2;
|
|
}
|
|
} else {
|
|
if (json_path_set(elm, path, obj, 0, &error)) {
|
|
PrintAndLog("ERROR: can't set json path: ", error.text);
|
|
return 2;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (saveAppDataLink) {
|
|
char * AppDataName = GetApplicationDataName(tlvelm->tag);
|
|
if (AppDataName)
|
|
JsonSaveStr(obj, "appdata", AppDataName);
|
|
} else {
|
|
char * name = emv_get_tag_name(tlvelm);
|
|
if (saveName && name && strlen(name) > 0 && strncmp(name, "Unknown", 7))
|
|
JsonSaveStr(obj, "name", emv_get_tag_name(tlvelm));
|
|
JsonSaveHex(obj, "tag", tlvelm->tag, 0);
|
|
if (saveValue) {
|
|
JsonSaveHex(obj, "length", tlvelm->len, 0);
|
|
JsonSaveBufAsHex(obj, "value", (uint8_t *)tlvelm->value, tlvelm->len);
|
|
};
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int JsonSaveTLVTreeElm(json_t *elm, char *path, struct tlvdb *tlvdbelm, bool saveName, bool saveValue, bool saveAppDataLink) {
|
|
return JsonSaveTLVElm(elm, path, (struct tlv *)tlvdb_get_tlv(tlvdbelm), saveName, saveValue, saveAppDataLink);
|
|
}
|
|
|
|
int JsonSaveTLVTree(json_t *root, json_t *elm, char *path, struct tlvdb *tlvdbelm) {
|
|
struct tlvdb *tlvp = tlvdbelm;
|
|
while (tlvp) {
|
|
const struct tlv * tlvpelm = tlvdb_get_tlv(tlvp);
|
|
char * AppDataName = NULL;
|
|
if (tlvpelm)
|
|
AppDataName = GetApplicationDataName(tlvpelm->tag);
|
|
|
|
if (AppDataName) {
|
|
char appdatalink[200] = {0};
|
|
sprintf(appdatalink, "$.ApplicationData.%s", AppDataName);
|
|
JsonSaveBufAsHex(root, appdatalink, (uint8_t *)tlvpelm->value, tlvpelm->len);
|
|
}
|
|
|
|
json_t *pelm = json_path_get(elm, path);
|
|
if (pelm && json_is_array(pelm)) {
|
|
json_t *appendelm = json_object();
|
|
json_array_append_new(pelm, appendelm);
|
|
JsonSaveTLVTreeElm(appendelm, "$", tlvp, !AppDataName, !tlvdb_elm_get_children(tlvp), AppDataName);
|
|
pelm = appendelm;
|
|
} else {
|
|
JsonSaveTLVTreeElm(elm, path, tlvp, !AppDataName, !tlvdb_elm_get_children(tlvp), AppDataName);
|
|
pelm = json_path_get(elm, path);
|
|
}
|
|
|
|
if (tlvdb_elm_get_children(tlvp)) {
|
|
// get path element
|
|
if(!pelm)
|
|
return 1;
|
|
|
|
// check childs element and add it if not found
|
|
json_t *chjson = json_path_get(pelm, "$.Childs");
|
|
if (!chjson) {
|
|
json_object_set_new(pelm, "Childs", json_array());
|
|
|
|
chjson = json_path_get(pelm, "$.Childs");
|
|
}
|
|
|
|
// check
|
|
if (!json_is_array(chjson)) {
|
|
PrintAndLog("E->Internal logic error. `$.Childs` is not an array.");
|
|
break;
|
|
}
|
|
|
|
// Recursion
|
|
JsonSaveTLVTree(root, chjson, "$", tlvdb_elm_get_children(tlvp));
|
|
}
|
|
|
|
tlvp = tlvdb_elm_get_next(tlvp);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
bool HexToBuffer(const char *errormsg, const char *hexvalue, uint8_t * buffer, size_t maxbufferlen, size_t *bufferlen) {
|
|
int buflen = 0;
|
|
|
|
switch (param_gethex_to_eol(hexvalue, 0, buffer, maxbufferlen, &buflen)) {
|
|
case 1:
|
|
PrintAndLog("%s Invalid HEX value.", errormsg);
|
|
return false;
|
|
case 2:
|
|
PrintAndLog("%s Hex value too large.", errormsg);
|
|
return false;
|
|
case 3:
|
|
PrintAndLog("%s Hex value must have even number of digits.", errormsg);
|
|
return false;
|
|
}
|
|
|
|
if (buflen > maxbufferlen) {
|
|
PrintAndLog("%s HEX length (%d) more than %d", errormsg, (bufferlen) ? *bufferlen : -1, maxbufferlen);
|
|
return false;
|
|
}
|
|
|
|
if ( bufferlen )
|
|
*bufferlen = buflen;
|
|
|
|
return true;
|
|
}
|
|
|
|
int JsonLoadStr(json_t *root, char *path, char *value) {
|
|
if (!value)
|
|
return 1;
|
|
|
|
json_t *jelm = json_path_get((const json_t *)root, path);
|
|
if (!jelm || !json_is_string(jelm))
|
|
return 2;
|
|
|
|
const char * strval = json_string_value(jelm);
|
|
if (!strval)
|
|
return 1;
|
|
|
|
memcpy(value, strval, strlen(strval));
|
|
|
|
return 0;
|
|
}
|
|
|
|
int JsonLoadBufAsHex(json_t *elm, char *path, uint8_t *data, size_t maxbufferlen, size_t *datalen) {
|
|
if (datalen)
|
|
*datalen = 0;
|
|
|
|
json_t *jelm = json_path_get((const json_t *)elm, path);
|
|
if (!jelm || !json_is_string(jelm))
|
|
return 1;
|
|
|
|
if (!HexToBuffer("ERROR load", json_string_value(jelm), data, maxbufferlen, datalen))
|
|
return 2;
|
|
|
|
return 0;
|
|
};
|
|
|
|
bool ParamLoadFromJson(struct tlvdb *tlv) {
|
|
json_t *root;
|
|
json_error_t error;
|
|
|
|
if (!tlv) {
|
|
PrintAndLog("ERROR load params: tlv tree is NULL.");
|
|
return false;
|
|
}
|
|
|
|
// current path + file name
|
|
const char *relfname = "emv/defparams.json";
|
|
char fname[strlen(get_my_executable_directory()) + strlen(relfname) + 1];
|
|
strcpy(fname, get_my_executable_directory());
|
|
strcat(fname, relfname);
|
|
|
|
root = json_load_file(fname, 0, &error);
|
|
if (!root) {
|
|
PrintAndLog("Load params: json error on line %d: %s", error.line, error.text);
|
|
return false;
|
|
}
|
|
|
|
if (!json_is_array(root)) {
|
|
PrintAndLog("Load params: Invalid json format. root must be array.");
|
|
return false;
|
|
}
|
|
|
|
PrintAndLog("Load params: json(%d) OK", json_array_size(root));
|
|
|
|
for(int i = 0; i < json_array_size(root); i++) {
|
|
json_t *data, *jtag, *jlength, *jvalue;
|
|
|
|
data = json_array_get(root, i);
|
|
if(!json_is_object(data))
|
|
{
|
|
PrintAndLog("Load params: data [%d] is not an object", i + 1);
|
|
json_decref(root);
|
|
return false;
|
|
}
|
|
|
|
jtag = json_object_get(data, "tag");
|
|
if(!json_is_string(jtag))
|
|
{
|
|
PrintAndLog("Load params: data [%d] tag is not a string", i + 1);
|
|
json_decref(root);
|
|
return false;
|
|
}
|
|
const char *tlvTag = json_string_value(jtag);
|
|
|
|
jvalue = json_object_get(data, "value");
|
|
if(!json_is_string(jvalue))
|
|
{
|
|
PrintAndLog("Load params: data [%d] value is not a string", i + 1);
|
|
json_decref(root);
|
|
return false;
|
|
}
|
|
const char *tlvValue = json_string_value(jvalue);
|
|
|
|
jlength = json_object_get(data, "length");
|
|
if(!json_is_number(jlength))
|
|
{
|
|
PrintAndLog("Load params: data [%d] length is not a number", i + 1);
|
|
json_decref(root);
|
|
return false;
|
|
}
|
|
|
|
int tlvLength = json_integer_value(jlength);
|
|
if (tlvLength > 250) {
|
|
PrintAndLog("Load params: data [%d] length more than 250", i + 1);
|
|
json_decref(root);
|
|
return false;
|
|
}
|
|
|
|
PrintAndLog("TLV param: %s[%d]=%s", tlvTag, tlvLength, tlvValue);
|
|
uint8_t buf[251] = {0};
|
|
size_t buflen = 0;
|
|
|
|
if (!HexToBuffer("TLV Error type:", tlvTag, buf, 4, &buflen)) {
|
|
json_decref(root);
|
|
return false;
|
|
}
|
|
tlv_tag_t tag = 0;
|
|
for (int i = 0; i < buflen; i++) {
|
|
tag = (tag << 8) | buf[i];
|
|
}
|
|
|
|
if (!HexToBuffer("TLV Error value:", tlvValue, buf, sizeof(buf) - 1, &buflen)) {
|
|
json_decref(root);
|
|
return false;
|
|
}
|
|
|
|
if (buflen != tlvLength) {
|
|
PrintAndLog("Load params: data [%d] length of HEX must(%d) be identical to length in TLV param(%d)", i + 1, buflen, tlvLength);
|
|
json_decref(root);
|
|
return false;
|
|
}
|
|
|
|
tlvdb_change_or_add_node(tlv, tag, tlvLength, (const unsigned char *)buf);
|
|
}
|
|
|
|
json_decref(root);
|
|
|
|
return true;
|
|
}
|
|
|