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Emv scan (#691)

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* added `hf emv scan` command and options
* add tlv tag save to json
* added tlv tree navigation
* added kernel id and moved some parts of code in ppse
* save gpo result
* added read records
* extract childs from tlv works
* added application data list
* added work with application data section
* flag --extract works
* refactoring: move json functions to emvjson.h/c
* added path.c to jansson
* refactoring: move ParamLoadFromJson
* refactoring: move defparams.json to tag-name-value structure
* refactoring and add key recovering
* added some codes to appdata list
* refactoring: process response format 1 from GPO
* added save mode
* added RID to app data
* add file name handling and small refactoring in argtable string processing
* added finalization logic to `emv scan` and option to remove hash checking in key recovery
This commit is contained in:
Oleg Moiseenko 2018-10-17 21:53:34 +03:00 • committed by pwpiwi
commit 95b697f017
20 changed files with 1209 additions and 241 deletions
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45
client/cliparser/cliparser.c
View file

@ -153,23 +153,14 @@ void CLIParserFree() {
// convertors
int CLIParamHexToBuf(struct arg_str *argstr, uint8_t *data, int maxdatalen, int *datalen) {
*datalen = 0;
if (!argstr->count)
return 0;
char buf[256] = {0};
int ibuf = 0;
uint8_t buf[256] = {0};
int res = CLIParamStrToBuf(argstr, buf, maxdatalen, &ibuf);
if (res || !ibuf)
return res;
for (int i = 0; i < argstr->count; i++) {
int len = strlen(argstr->sval[i]);
memcpy(&buf[ibuf], argstr->sval[i], len);
ibuf += len;
}
buf[ibuf] = 0;
if (!ibuf)
return 0;
switch(param_gethex_to_eol(buf, 0, data, maxdatalen, datalen)) {
switch(param_gethex_to_eol((char *)buf, 0, data, maxdatalen, datalen)) {
case 1:
printf("Parameter error: Invalid HEX value.\n");
return 1;
@ -184,5 +175,31 @@ int CLIParamHexToBuf(struct arg_str *argstr, uint8_t *data, int maxdatalen, int
return 0;
}
int CLIParamStrToBuf(struct arg_str *argstr, uint8_t *data, int maxdatalen, int *datalen) {
*datalen = 0;
if (!argstr->count)
return 0;
uint8_t buf[256] = {0};
int ibuf = 0;
for (int i = 0; i < argstr->count; i++) {
int len = strlen(argstr->sval[i]);
memcpy(&buf[ibuf], argstr->sval[i], len);
ibuf += len;
}
buf[ibuf] = 0;
if (!ibuf)
return 0;
if (ibuf > maxdatalen)
return 2;
memcpy(data, buf, ibuf);
*datalen = ibuf;
return 0;
}

6
client/cliparser/cliparser.h
View file

@ -25,8 +25,9 @@
#define arg_strx0(shortopts, longopts, datatype, glossary) (arg_strn((shortopts), (longopts), (datatype), 0, 250, (glossary)))
#define CLIExecWithReturn(cmd, atbl, ifempty) if (CLIParserParseString(cmd, atbl, arg_getsize(atbl), ifempty)){CLIParserFree();return 0;}
#define CLIGetStrBLessWithReturn(paramnum, data, datalen, delta) if (CLIParamHexToBuf(arg_get_str(paramnum), data, sizeof(data) - (delta), datalen)) {CLIParserFree();return 1;}
#define CLIGetStrWithReturn(paramnum, data, datalen) if (CLIParamHexToBuf(arg_get_str(paramnum), data, sizeof(data), datalen)) {CLIParserFree();return 1;}
#define CLIGetHexBLessWithReturn(paramnum, data, datalen, delta) if (CLIParamHexToBuf(arg_get_str(paramnum), data, sizeof(data) - (delta), datalen)) {CLIParserFree();return 1;}
#define CLIGetHexWithReturn(paramnum, data, datalen) if (CLIParamHexToBuf(arg_get_str(paramnum), data, sizeof(data), datalen)) {CLIParserFree();return 1;}
#define CLIGetStrWithReturn(paramnum, data, datalen) if (CLIParamStrToBuf(arg_get_str(paramnum), data, sizeof(data), datalen)) {CLIParserFree();return 1;}
extern int CLIParserInit(char *vprogramName, char *vprogramHint, char *vprogramHelp);
extern int CLIParserParseString(const char* str, void* argtable[], size_t vargtableLen, bool allowEmptyExec);
@ -35,3 +36,4 @@ extern int CLIParserParseArg(int argc, char **argv, void* argtable[], size_t var
extern void CLIParserFree();
extern int CLIParamHexToBuf(struct arg_str *argstr, uint8_t *data, int maxdatalen, int *datalen);
extern int CLIParamStrToBuf(struct arg_str *argstr, uint8_t *data, int maxdatalen, int *datalen);