PZERO, /* check value unused */
NULL /* no model name */
};
+
int ibperhx = 8;//, obperhx = 8;
int rflags = 0, uflags = 0; /* search and UI flags */
-
- //unsigned long width = 0UL;
- //int c, mode = 0, args, psets, pass;
poly_t apoly, crc, qpoly = PZERO, *apolys = NULL, *pptr = NULL, *qptr = NULL;
model_t pset = model, *candmods, *mptr;
- //char *string;
-
- //myname = argv[0];
/* stdin must be binary */
#ifdef _WIN32
SETBMP();
- //pos=0;
- //optind=1;
-
int args = 0, psets, pass;
int Cnt = 0;
if (*width == 0) { //reveng -D
*count = mcount();
- //PrintAndLog("Count: %d",*count);
if(!*count)
return uerr("no preset models available");
mbynum(&model, mode);
mcanon(&model);
size_t size = (model.name && *model.name) ? strlen(model.name) : 6;
- //PrintAndLog("Size: %d, %s",size,model.name);
char *tmp = calloc(size+1, sizeof(char));
if (tmp==NULL)
return uerr("out of memory?");
memcpy(tmp, model.name, size);
Models[mode] = tmp;
- //ufound(&model);
}
+ mfree(&model);
} else { //reveng -s
- if(~model.flags & P_MULXN)
- return uerr("cannot search for non-Williams compliant models");
+ if(~model.flags & P_MULXN)
+ return uerr("cannot search for non-Williams compliant models");
- praloc(&model.spoly, *width);
- praloc(&model.init, *width);
- praloc(&model.xorout, *width);
- if(!plen(model.spoly))
- palloc(&model.spoly, *width);
- else
- *width = plen(model.spoly);
+ praloc(&model.spoly, *width);
+ praloc(&model.init, *width);
+ praloc(&model.xorout, *width);
+ if(!plen(model.spoly))
+ palloc(&model.spoly, *width);
+ else
+ *width = plen(model.spoly);
- /* special case if qpoly is zero, search to end of range */
- if(!ptst(qpoly))
- rflags &= ~R_HAVEQ;
+ /* special case if qpoly is zero, search to end of range */
+ if(!ptst(qpoly))
+ rflags &= ~R_HAVEQ;
- /* not going to be sending additional args
+ /* not going to be sending additional args at this time (maybe future?)
- // allocate argument array
- args = argc - optind;
- if(!(apolys = malloc(args * sizeof(poly_t))))
- return uerr("cannot allocate memory for argument list");
+ // allocate argument array
+ args = argc - optind;
+ if(!(apolys = malloc(args * sizeof(poly_t))))
+ return uerr("cannot allocate memory for argument list");
- for(pptr = apolys; optind < argc; ++optind) {
- if(uflags & C_INFILE)
- *pptr++ = rdpoly(argv[optind], model.flags, ibperhx);
- else
- *pptr++ = strtop(argv[optind], model.flags, ibperhx);
- }
- // exit value of pptr is used hereafter!
-
- */
-
- /* if endianness not specified, try
- * little-endian then big-endian.
- * NB: crossed-endian algorithms will not be
- * searched.
- */
- /* scan against preset models */
- if(~uflags & C_FORCE) {
- pass = 0;
- Cnt = 0;
- do {
- psets = mcount();
- //PrintAndLog("psets: %d",psets);
- while(psets) {
- mbynum(&pset, --psets);
-
- /* skip if different width, or refin or refout don't match */
- if(plen(pset.spoly) != *width || (model.flags ^ pset.flags) & (P_REFIN | P_REFOUT))
- continue;
- /* skip if the preset doesn't match specified parameters */
- if(rflags & R_HAVEP && pcmp(&model.spoly, &pset.spoly))
- continue;
- if(rflags & R_HAVEI && psncmp(&model.init, &pset.init))
- continue;
- if(rflags & R_HAVEX && psncmp(&model.xorout, &pset.xorout))
- continue;
-
- apoly = pclone(pset.xorout);
- if(pset.flags & P_REFOUT)
- prev(&apoly);
- for(qptr = apolys; qptr < pptr; ++qptr) {
- crc = pcrc(*qptr, pset.spoly, pset.init, apoly, 0);
- if(ptst(crc)) {
- pfree(&crc);
- break;
- } else
- pfree(&crc);
- }
- pfree(&apoly);
- if(qptr == pptr) {
- /* the selected model solved all arguments */
- mcanon(&pset);
-
- size_t size = (pset.name && *pset.name) ? strlen(pset.name) : 6;
- //PrintAndLog("Size: %d, %s, count: %d",size,pset.name, Cnt);
- char *tmp = calloc(size+1, sizeof(char));
- if (tmp==NULL){
- PrintAndLog("out of memory?");
- return 0;
- }
- memcpy(tmp, pset.name, size);
- Models[Cnt++] = tmp;
- *count = Cnt;
- //ufound(&pset);
- uflags |= C_RESULT;
- }
- }
- mfree(&pset);
+ for(pptr = apolys; optind < argc; ++optind) {
+ if(uflags & C_INFILE)
+ *pptr++ = rdpoly(argv[optind], model.flags, ibperhx);
+ else
+ *pptr++ = strtop(argv[optind], model.flags, ibperhx);
+ }
+ // exit value of pptr is used hereafter!
+
+ */
- /* toggle refIn/refOut and reflect arguments */
- if(~rflags & R_HAVERI) {
- model.flags ^= P_REFIN | P_REFOUT;
- for(qptr = apolys; qptr < pptr; ++qptr)
- prevch(qptr, ibperhx);
- }
- } while(~rflags & R_HAVERI && ++pass < 2);
- }
- if(uflags & C_RESULT) {
- for(qptr = apolys; qptr < pptr; ++qptr)
- pfree(qptr);
- return 1;
- //exit(EXIT_SUCCESS);
- }
- if(!(model.flags & P_REFIN) != !(model.flags & P_REFOUT))
- return uerr("cannot search for crossed-endian models");
+ /* if endianness not specified, try
+ * little-endian then big-endian.
+ * NB: crossed-endian algorithms will not be
+ * searched.
+ */
+ /* scan against preset models */
+ if(~uflags & C_FORCE) {
pass = 0;
+ Cnt = 0;
do {
- mptr = candmods = reveng(&model, qpoly, rflags, args, apolys);
- if(mptr && plen(mptr->spoly))
- uflags |= C_RESULT;
- while(mptr && plen(mptr->spoly)) {
- /* results were printed by the callback
- * string = mtostr(mptr);
- * puts(string);
- * free(string);
- */
- mfree(mptr++);
+ psets = mcount();
+ //PrintAndLog("psets: %d",psets);
+ while(psets) {
+ mbynum(&pset, --psets);
+
+ /* skip if different width, or refin or refout don't match */
+ if(plen(pset.spoly) != *width || (model.flags ^ pset.flags) & (P_REFIN | P_REFOUT))
+ continue;
+ /* skip if the preset doesn't match specified parameters */
+ if(rflags & R_HAVEP && pcmp(&model.spoly, &pset.spoly))
+ continue;
+ if(rflags & R_HAVEI && psncmp(&model.init, &pset.init))
+ continue;
+ if(rflags & R_HAVEX && psncmp(&model.xorout, &pset.xorout))
+ continue;
+
+ //for additional args (not used yet, maybe future?)
+ apoly = pclone(pset.xorout);
+ if(pset.flags & P_REFOUT)
+ prev(&apoly);
+
+ for(qptr = apolys; qptr < pptr; ++qptr) {
+ crc = pcrc(*qptr, pset.spoly, pset.init, apoly, 0);
+ if(ptst(crc)) {
+ pfree(&crc);
+ break;
+ } else
+ pfree(&crc);
+ }
+ pfree(&apoly);
+ if(qptr == pptr) {
+
+ /* the selected model solved all arguments */
+
+ mcanon(&pset);
+
+ size_t size = (pset.name && *pset.name) ? strlen(pset.name) : 6;
+ //PrintAndLog("Size: %d, %s, count: %d",size,pset.name, Cnt);
+ char *tmp = calloc(size+1, sizeof(char));
+ if (tmp==NULL){
+ PrintAndLog("out of memory?");
+ return 0;
+ }
+ memcpy(tmp, pset.name, size);
+ Models[Cnt++] = tmp;
+ *count = Cnt;
+ uflags |= C_RESULT;
+ }
}
- free(candmods);
+ mfree(&pset);
+
+ /* toggle refIn/refOut and reflect arguments */
if(~rflags & R_HAVERI) {
model.flags ^= P_REFIN | P_REFOUT;
for(qptr = apolys; qptr < pptr; ++qptr)
prevch(qptr, ibperhx);
}
} while(~rflags & R_HAVERI && ++pass < 2);
+ }
+ //got everything now free the memory...
+
+ if(uflags & C_RESULT) {
for(qptr = apolys; qptr < pptr; ++qptr)
pfree(qptr);
- free(apolys);
- if(~uflags & C_RESULT)
- return uerr("no models found");
-
-
+ }
+ if(!(model.flags & P_REFIN) != !(model.flags & P_REFOUT))
+ return uerr("cannot search for crossed-endian models");
+
+ pass = 0;
+ do {
+ mptr = candmods = reveng(&model, qpoly, rflags, args, apolys);
+ if(mptr && plen(mptr->spoly))
+ uflags |= C_RESULT;
+ while(mptr && plen(mptr->spoly)) {
+ mfree(mptr++);
+ }
+ free(candmods);
+ if(~rflags & R_HAVERI) {
+ model.flags ^= P_REFIN | P_REFOUT;
+ for(qptr = apolys; qptr < pptr; ++qptr)
+ prevch(qptr, ibperhx);
+ }
+ } while(~rflags & R_HAVERI && ++pass < 2);
+ for(qptr = apolys; qptr < pptr; ++qptr)
+ pfree(qptr);
+ free(apolys);
+ if(~uflags & C_RESULT)
+ return uerr("no models found");
+ mfree(&model);
}
- //PrintAndLog("DONE");
return 1;
}
projects / proxmark3-svn / blobdiff