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emrtd: add helper fcts to search the table

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This commit is contained in:
Philippe Teuwen 2020-12-19 17:37:28 +01:00
parent 019f4a7e94
commit 34cc523546
1 changed files with 49 additions and 67 deletions
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116
client/src/cmdhfemrtd.c
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@ -91,6 +91,23 @@ static emrtd_dg_t dg_table[] = {
{0x00, NULL, NULL, NULL, false, false, false, NULL, NULL}
};
static emrtd_dg_t *emrtd_tag_to_dg(uint8_t tag) {
for (int dgi=0; dg_table[dgi].filename != NULL; dgi++) {
if (dg_table[dgi].tag == tag) {
return &dg_table[dgi];
}
}
return NULL;
}
static emrtd_dg_t *emrtd_fileid_to_dg(const char *file_id) {
for (int dgi=0; dg_table[dgi].filename != NULL; dgi++) {
if (strcmp(dg_table[dgi].fileid, file_id) == 0) {
return &dg_table[dgi];
}
}
return NULL;
}
static int CmdHelp(const char *Cmd);
static uint16_t get_sw(uint8_t *d, uint8_t n) {
@ -627,17 +644,6 @@ static bool emrtd_lds_get_data_by_tag(uint8_t *datain, int datainlen, uint8_t *d
return false;
}
static bool emrtd_file_tag_to_file_id(uint8_t *datain, char *filenameout, char *dataout) {
for (int dgi=0; dg_table[dgi].filename != NULL; dgi++) {
if (dg_table[dgi].tag == *datain) {
strcpy(dataout, dg_table[dgi].fileid);
strcpy(filenameout, dg_table[dgi].filename);
return true;
}
}
return false;
}
static bool emrtd_select_and_read(uint8_t *dataout, int *dataoutlen, const char *file, uint8_t *ks_enc, uint8_t *ks_mac, uint8_t *ssc, bool use_secure, bool use_14b) {
if (use_secure) {
if (emrtd_secure_select_file(ks_enc, ks_mac, ssc, EMRTD_P1_SELECT_BY_EF, file, use_14b) == false) {
@ -743,13 +749,9 @@ static bool emrtd_dump_file(uint8_t *ks_enc, uint8_t *ks_mac, uint8_t *ssc, cons
PrintAndLogEx(INFO, "Read %s, len: %i.", name, resplen);
PrintAndLogEx(DEBUG, "Contents (may be incomplete over 2k chars): %s", sprint_hex_inrow(response, resplen));
saveFile(name, ".BIN", response, resplen);
for (int dgi=0; dg_table[dgi].filename != NULL; dgi++) {
if (strcmp(dg_table[dgi].fileid, file) == 0) {
if (dg_table[dgi].dumper != NULL)
dg_table[dgi].dumper(response, resplen);
break;
}
emrtd_dg_t * dg = emrtd_fileid_to_dg(file);
if ((dg != NULL) && (dg->dumper != NULL)) {
dg->dumper(response, resplen);
}
return true;
}
@ -987,19 +989,14 @@ int dumpHF_EMRTD(char *documentnumber, char *dob, char *expiry, bool BAC_availab
// Dump all files in the file list
for (int i = 0; i < filelistlen; i++) {
char file_id[5] = { 0x00 };
char file_name[8] = { 0x00 };
if (emrtd_file_tag_to_file_id(&filelist[i], file_name, file_id) == false) {
emrtd_dg_t * dg = emrtd_tag_to_dg(filelist[i]);
if (dg == NULL) {
PrintAndLogEx(INFO, "File tag not found, skipping: %02X", filelist[i]);
continue;
}
PrintAndLogEx(DEBUG, "Current file: %s", file_name);
for (int dgi=0; dg_table[dgi].filename != NULL; dgi++) {
if ((strcmp(dg_table[dgi].filename, file_name) == 0) && !dg_table[dgi].pace) {
emrtd_dump_file(ks_enc, ks_mac, ssc, file_id, file_name, BAC, use_14b);
break;
}
PrintAndLogEx(DEBUG, "Current file: %s", dg->filename);
if (!dg->pace) {
emrtd_dump_file(ks_enc, ks_mac, ssc, dg->fileid, dg->filename, BAC, use_14b);
}
}
@ -1221,18 +1218,12 @@ static int emrtd_print_ef_com_info(uint8_t *data, size_t datalen) {
PrintAndLogEx(NORMAL, "");
PrintAndLogEx(INFO, "-------------------- " _CYAN_("EF_COM") " --------------------");
for (int i = 0; i < filelistlen; i++) {
char file_id[5] = { 0x00 };
char file_name[8] = { 0x00 };
if (emrtd_file_tag_to_file_id(&filelist[i], file_name, file_id) == false) {
PrintAndLogEx(DEBUG, "File tag not found, skipping: %02X", filelist[i]);
emrtd_dg_t * dg = emrtd_tag_to_dg(filelist[i]);
if (dg == NULL) {
PrintAndLogEx(INFO, "File tag not found, skipping: %02X", filelist[i]);
continue;
}
for (int dgi=0; dg_table[dgi].filename != NULL; dgi++) {
if (strcmp(dg_table[dgi].filename, file_name) == 0) {
PrintAndLogEx(SUCCESS, "%-7s...............: " _YELLOW_("%s"), file_name, dg_table[dgi].desc);
break;
}
}
PrintAndLogEx(SUCCESS, "%-7s...............: " _YELLOW_("%s"), dg->filename, dg->desc);
}
return PM3_SUCCESS;
}
@ -1525,19 +1516,15 @@ int infoHF_EMRTD(char *documentnumber, char *dob, char *expiry, bool BAC_availab
// Dump all files in the file list
for (int i = 0; i < filelistlen; i++) {
char file_id[5] = { 0x00 };
char file_name[8] = { 0x00 };
if (emrtd_file_tag_to_file_id(&filelist[i], file_name, file_id) == false) {
PrintAndLogEx(DEBUG, "File tag not found, skipping: %02X", filelist[i]);
emrtd_dg_t * dg = emrtd_tag_to_dg(filelist[i]);
if (dg == NULL) {
PrintAndLogEx(INFO, "File tag not found, skipping: %02X", filelist[i]);
continue;
}
for (int dgi=0; dg_table[dgi].filename != NULL; dgi++) {
if ((strcmp(dg_table[dgi].filename, file_name) == 0) && dg_table[dgi].fastdump && !dg_table[dgi].pace) {
if (emrtd_select_and_read(response, &resplen, dg_table[dgi].fileid, ks_enc, ks_mac, ssc, BAC, use_14b)) {
if (dg_table[dgi].parser != NULL)
dg_table[dgi].parser(response, resplen);
}
break;
if (dg->fastdump && !dg->pace) {
if (emrtd_select_and_read(response, &resplen, dg->fileid, ks_enc, ks_mac, ssc, BAC, use_14b)) {
if (dg->parser != NULL)
dg->parser(response, resplen);
}
}
}
@ -1585,26 +1572,21 @@ int infoHF_EMRTD_offline(const char *path) {
free(data);
// Read files in the file list
for (int i = 0; i < filelistlen; i++) {
char file_id[5] = { 0x00 };
char file_name[8] = { 0x00 };
if (emrtd_file_tag_to_file_id(&filelist[i], file_name, file_id) == false) {
//PrintAndLogEx(DEBUG, "File tag not found, skipping: %02X", filelist[i]);
emrtd_dg_t * dg = emrtd_tag_to_dg(filelist[i]);
if (dg == NULL) {
PrintAndLogEx(INFO, "File tag not found, skipping: %02X", filelist[i]);
continue;
}
for (int dgi=0; dg_table[dgi].filename != NULL; dgi++) {
if ((strcmp(dg_table[dgi].filename, file_name) == 0) && (!dg_table[dgi].pace)) {
strcpy(filepath, path);
strncat(filepath, PATHSEP, 1);
strcat(filepath, dg_table[dgi].filename);
if (loadFile_safeEx(filepath, ".BIN", (void **)&data, (size_t *)&datalen, false) == PM3_SUCCESS)
{
// we won't halt on parsing errors
if (dg_table[dgi].parser != NULL)
dg_table[dgi].parser(data, datalen);
free(data);
}
break;
if (!dg->pace) {
strcpy(filepath, path);
strncat(filepath, PATHSEP, 1);
strcat(filepath, dg->filename);
if (loadFile_safeEx(filepath, ".BIN", (void **)&data, (size_t *)&datalen, false) == PM3_SUCCESS)
{
// we won't halt on parsing errors
if (dg->parser != NULL)
dg->parser(data, datalen);
free(data);
}
}
}