reworking magic cheneese card wipe (#365)

[proxmark3-svn] / client / fpga_compress.c

diff --git a/client/fpga_compress.c b/client/fpga_compress.c
index 28154243825350d527f569ac4390c57933ca530a..2ef883db9369342b9b57f25bec89ce53cf4ca9ee 100644 (file)
--- a/client/fpga_compress.c
+++ b/client/fpga_compress.c
@@ -38,7 +38,8 @@
 #define COMPRESS_MAX_CHAIN            8192
 
 #define FPGA_INTERLEAVE_SIZE           288  // (the FPGA's internal config frame size is 288 bits. Interleaving with 288 bytes should give best compression)
-#define FPGA_CONFIG_SIZE             42336  // our current fpga_[lh]f.bit files are 42175 bytes. Rounded up to next multiple of FPGA_INTERLEAVE_SIZE
+#define FPGA_CONFIG_SIZE            42336L  // our current fpga_[lh]f.bit files are 42175 bytes. Rounded up to next multiple of FPGA_INTERLEAVE_SIZE
+#define HARDNESTED_TABLE_SIZE          (sizeof(uint32_t) * ((1L<<19)+1))
 
 static void usage(void)
 {
@@ -46,6 +47,8 @@ static void usage(void)
        fprintf(stderr, "          Combine n FPGA bitstream files and compress them into one.\n\n");
        fprintf(stderr, "       fpga_compress -d <infile> <outfile>");
        fprintf(stderr, "          Decompress <infile>. Write result to <outfile>");
+       fprintf(stderr, "       fpga_compress -t <infile> <outfile>");
+       fprintf(stderr, "          Compress hardnested table <infile>. Write result to <outfile>");
 }
 
 
@@ -73,7 +76,7 @@ static bool all_feof(FILE *infile[], uint8_t num_infiles)
 }
 
 
-int zlib_compress(FILE *infile[], uint8_t num_infiles, FILE *outfile)
+int zlib_compress(FILE *infile[], uint8_t num_infiles, FILE *outfile, bool hardnested_mode)
 {
        uint8_t *fpga_config;
        uint32_t i;
@@ -81,14 +84,21 @@ int zlib_compress(FILE *infile[], uint8_t num_infiles, FILE *outfile)
        uint8_t c;
        z_stream compressed_fpga_stream;
 
-       fpga_config = malloc(num_infiles * FPGA_CONFIG_SIZE);
-       
+       if (hardnested_mode) {
+               fpga_config = malloc(num_infiles * HARDNESTED_TABLE_SIZE);
+       } else {
+               fpga_config = malloc(num_infiles * FPGA_CONFIG_SIZE);
+       }               
        // read the input files. Interleave them into fpga_config[]
        i = 0;
        do {
 
-               if (i >= num_infiles * FPGA_CONFIG_SIZE) {
-                       fprintf(stderr, "Input files too big (total > %u bytes). These are probably not PM3 FPGA config files.\n", num_infiles*FPGA_CONFIG_SIZE);
+               if (i >= num_infiles * (hardnested_mode?HARDNESTED_TABLE_SIZE:FPGA_CONFIG_SIZE)) {
+                       if (hardnested_mode) {
+                               fprintf(stderr, "Input file too big (> %lu bytes). This is probably not a hardnested bitflip state table.\n", HARDNESTED_TABLE_SIZE);
+                       } else {
+                               fprintf(stderr, "Input files too big (total > %lu bytes). These are probably not PM3 FPGA config files.\n", num_infiles*FPGA_CONFIG_SIZE);
+                       }
                        for(uint16_t j = 0; j < num_infiles; j++) {
                                fclose(infile[j]);
                        }
@@ -253,6 +263,7 @@ int main(int argc, char **argv)
        }
        
        if (!strcmp(argv[1], "-d")) { // Decompress
+
                infiles = calloc(1, sizeof(FILE*));
                if (argc != 4) {
                        usage();
@@ -272,11 +283,23 @@ int main(int argc, char **argv)
 
        } else { // Compress
 
-               infiles = calloc(argc-2, sizeof(FILE*));
-               for (uint16_t i = 0; i < argc-2; i++) { 
-                       infiles[i] = fopen(argv[i+1], "rb");
+               bool hardnested_mode = false;
+               int num_input_files = 0;
+               if (!strcmp(argv[1], "-t")) { // hardnested table
+                       if (argc != 4) {
+                               usage();
+                               return(EXIT_FAILURE);
+                       }
+                       hardnested_mode = true;
+                       num_input_files = 1;
+               } else {
+                       num_input_files = argc-2;
+               }
+               infiles = calloc(num_input_files, sizeof(FILE*));
+               for (uint16_t i = 0; i < num_input_files; i++) { 
+                       infiles[i] = fopen(argv[i+hardnested_mode?2:1], "rb");
                        if (infiles[i] == NULL) {
-                               fprintf(stderr, "Error. Cannot open input file %s", argv[i+1]);
+                               fprintf(stderr, "Error. Cannot open input file %s", argv[i+hardnested_mode?2:1]);
                                return(EXIT_FAILURE);
                        }
                }
@@ -285,6 +308,6 @@ int main(int argc, char **argv)
                        fprintf(stderr, "Error. Cannot open output file %s", argv[argc-1]);
                        return(EXIT_FAILURE);
                }
-               return zlib_compress(infiles, argc-2, outfile);
+               return zlib_compress(infiles, num_input_files, outfile, hardnested_mode);
        }
 }