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rework a bit mfc mad

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This commit is contained in:
Philippe Teuwen
2020-06-09 19:12:29 +02:00
parent 33144d1be8
commit 35c6ee1bbb
1 changed files with 56 additions and 66 deletions
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122
client/src/mifare/mad.c
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@@ -18,7 +18,7 @@
#include "jansson.h"
// https://www.nxp.com/docs/en/application-note/AN10787.pdf
static json_t* mad_known_aids = NULL;
static json_t *mad_known_aids = NULL;
static int open_mad_file(json_t **root, bool verbose) {
@@ -44,7 +44,7 @@ static int open_mad_file(json_t **root, bool verbose) {
goto out;
}
if (verbose)
if (verbose)
PrintAndLogEx(SUCCESS, "Loaded file (%s) OK. %zu records.", path, json_array_size(*root));
out:
free(path);
@@ -74,93 +74,52 @@ static const char *mad_json_get_str(json_t *data, const char *name) {
return cstr;
}
static int mad_print(json_t **xroot, char *mad, bool verbose, char *out) {
json_t *root = *xroot;
if (root == NULL) {
int res = open_mad_file(&root, verbose);
if (res != PM3_SUCCESS)
return res;
*xroot = root;
}
int retval = PM3_EUNDEF;
if (root == NULL)
goto out;
static int print_aid_description(json_t *root, uint16_t aid, char *fmt, bool verbose) {
char lmad[7] = {0};
sprintf(lmad, "0x%04x", BSWAP_16(aid)); // must be lowercase
json_t *elm = NULL;
for (uint32_t idx = 0; idx < json_array_size(root); idx++) {
for (uint32_t idx = 0; idx < json_array_size(root); idx++) {
json_t *data = json_array_get(root, idx);
if (!json_is_object(data)) {
PrintAndLogEx(ERR, "data [%d] is not an object\n", idx);
continue;
}
const char *fmad = mad_json_get_str(data, "mad");
if (strcmp(mad, fmad) == 0) {
elm = data;
break;
}
char lfmad[strlen(fmad) + 1];
strcpy(lfmad, fmad);
str_lower(lfmad);
char lmad[strlen(mad) + 1];
strcpy(lmad, mad);
str_lower(lmad);
if (strcmp(lmad, lfmad) == 0) {
elm = data;
break;
}
}
if (elm == NULL)
goto out;
retval = PM3_SUCCESS;
// print here
if (elm == NULL) {
PrintAndLogEx(INFO, fmt, " (unknown)");
return PM3_ENODATA;
}
const char *vmad = mad_json_get_str(elm, "mad");
const char *application = mad_json_get_str(elm, "application");
const char *company = mad_json_get_str(elm, "company");
const char *vmad = mad_json_get_str(elm, "mad");
const char *provider = mad_json_get_str(elm, "service_provider");
const char *integrator = mad_json_get_str(elm, "system_integrator");
sprintf(out, "%s [%s]", application, company);
char result[4 + strlen(application) + strlen(company)];
sprintf(result, " %s [%s]", application, company);
PrintAndLogEx(INFO, fmt, result);
if (verbose) {
PrintAndLogEx(SUCCESS, "MAD %s", vmad);
PrintAndLogEx(SUCCESS, " MAD: %s", vmad);
if (application)
PrintAndLogEx(SUCCESS, "Application %s", application);
PrintAndLogEx(SUCCESS, " Application: %s", application);
if (company)
PrintAndLogEx(SUCCESS, "Company %s", company);
PrintAndLogEx(SUCCESS, " Company: %s", company);
if (provider)
PrintAndLogEx(SUCCESS, "Service provider %s", provider);
PrintAndLogEx(SUCCESS, " Service provider: %s", provider);
if (integrator)
PrintAndLogEx(SUCCESS, "System integrator %s", integrator);
PrintAndLogEx(SUCCESS, " System integrator: %s", integrator);
}
out:
if (*xroot == NULL) {
close_mad_file(root);
}
return retval;
}
static const char *get_aid_description(uint16_t aid, bool verbose) {
static char result[200];
char s[7] = {0};
sprintf(s, "0x%04X", aid);
int res = mad_print(&mad_known_aids, s, verbose, result);
if (res != PM3_SUCCESS) {
return "";
}
return result;
return PM3_SUCCESS;
}
static int madCRCCheck(uint8_t *sector, bool verbose, int MADver) {
@@ -267,7 +226,17 @@ int MADDecode(uint8_t *sector0, uint8_t *sector10, uint16_t *mad, size_t *madlen
return PM3_SUCCESS;
}
static const char *aid_admin[] = {
"free",
"defect",
"reserved",
"additional directory info",
"card holder info",
"not applicable"
};
int MAD1DecodeAndPrint(uint8_t *sector, bool verbose, bool *haveMAD2) {
open_mad_file(&mad_known_aids, verbose);
// check MAD1 only
MADCheck(sector, NULL, verbose, haveMAD2);
@@ -284,15 +253,26 @@ int MAD1DecodeAndPrint(uint8_t *sector, bool verbose, bool *haveMAD2) {
PrintAndLogEx(WARNING, "Info byte error");
PrintAndLogEx(INFO, " 00 MAD 1");
uint32_t prev_aid = 0xFFFFFFFF;
for (int i = 1; i < 16; i++) {
uint16_t AID = madGetAID(sector, 1, i);
PrintAndLogEx(INFO, " %02d [%04X] %s", i, AID, get_aid_description(AID, verbose));
uint16_t aid = madGetAID(sector, 1, i);
if (aid < 6) {
PrintAndLogEx(INFO, " %02d [%04X] (%s)", i, aid, aid_admin[aid]);
} else if (prev_aid == aid) {
PrintAndLogEx(INFO, " %02d [%04X] (continuation)", i, aid);
} else {
char fmt[20];
sprintf(fmt, " %02d [%04X]%s", i, aid, "%s");
print_aid_description(mad_known_aids, aid, fmt, verbose);
prev_aid = aid;
}
}
close_mad_file(mad_known_aids);
return PM3_SUCCESS;
}
int MAD2DecodeAndPrint(uint8_t *sector, bool verbose) {
open_mad_file(&mad_known_aids, verbose);
PrintAndLogEx(INFO, " 16 MAD 2");
int res = madCRCCheck(sector, true, 2);
@@ -310,11 +290,21 @@ int MAD2DecodeAndPrint(uint8_t *sector, bool verbose) {
if (verbose)
PrintAndLogEx(WARNING, "Card publisher sector not present");
}
uint32_t prev_aid = 0xFFFFFFFF;
for (int i = 1; i < 8 + 8 + 7 + 1; i++) {
uint16_t aid = madGetAID(sector, 2, i);
PrintAndLogEx(INFO, "%02d [%04X] %s", i + 16, aid, get_aid_description(aid, verbose));
if (aid < 6) {
PrintAndLogEx(INFO, " %02d [%04X] (%s)", i + 16, aid, aid_admin[aid]);
} else if (prev_aid == aid) {
PrintAndLogEx(INFO, " %02d [%04X] (continuation)", i + 16, aid);
} else {
char fmt[20];
sprintf(fmt, " %02d [%04X]%s", i + 16, aid, "%s");
print_aid_description(mad_known_aids, aid, fmt, verbose);
prev_aid = aid;
}
}
close_mad_file(mad_known_aids);
return PM3_SUCCESS;
}