X-Git-Url: http://cvs.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/0fa01ec7da07559ab8ebbad1e4e9ec3ef2d85809..415274a7c3253b71b582c2f563bb54080c2790be:/client/fpga_compress.c diff --git a/client/fpga_compress.c b/client/fpga_compress.c index 5164f6d4..2779e835 100644 --- a/client/fpga_compress.c +++ b/client/fpga_compress.c @@ -3,7 +3,10 @@ // at your option, any later version. See the LICENSE.txt file for the text of // the license. //----------------------------------------------------------------------------- -// Flasher frontend tool +// Compression tool for FPGA config files. Compress several *.bit files at +// compile time. Decompression is done at run time (see fpgaloader.c). +// This uses the zlib library tuned to this specific case. The small file sizes +// allow to use "insane" parameters for optimum compression ratio. //----------------------------------------------------------------------------- #include @@ -17,8 +20,8 @@ // zlib configuration #define COMPRESS_LEVEL 9 // use best possible compression -#define COMPRESS_WINDOW_BITS 15 // default = 15 for a window of 2^15 = 32KBytes -#define COMPRESS_MEM_LEVEL 9 // determines the amount of memory allocated during compression. Default = 8. Must be < 9 +#define COMPRESS_WINDOW_BITS 15 // default = max = 15 for a window of 2^15 = 32KBytes +#define COMPRESS_MEM_LEVEL 9 // determines the amount of memory allocated during compression. Default = 8. /* COMPRESS_STRATEGY can be Z_DEFAULT_STRATEGY (the default), Z_FILTERED (more huffmann, less string matching), @@ -36,23 +39,23 @@ #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 -static void usage(char *argv0) +static void usage(void) { - fprintf(stderr, "Usage: %s ... \n\n", argv0); - fprintf(stderr, "Combines n FPGA bitstream files and compresses them into one.\n\n"); + fprintf(stderr, "Usage: fpga_compress ... \n"); + fprintf(stderr, " Combine n FPGA bitstream files and compress them into one.\n\n"); + fprintf(stderr, " fpga_compress -d "); + fprintf(stderr, " Decompress . Write result to "); } static voidpf fpga_deflate_malloc(voidpf opaque, uInt items, uInt size) { - fprintf(stderr, "zlib requested %d bytes\n", items*size); return malloc(items*size); } static void fpga_deflate_free(voidpf opaque, voidpf address) { - fprintf(stderr, "zlib frees memory\n"); return free(address); } @@ -79,9 +82,18 @@ int zlib_compress(FILE *infile[], uint8_t num_infiles, FILE *outfile) fpga_config = malloc(num_infiles * FPGA_CONFIG_SIZE); - // read the input files interleaving into fpga_config[] + // 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 > %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]); + } + return(EXIT_FAILURE); + } + for(uint16_t j = 0; j < num_infiles; j++) { for(uint16_t k = 0; k < FPGA_INTERLEAVE_SIZE; k++) { c = fgetc(infile[j]); @@ -93,17 +105,8 @@ int zlib_compress(FILE *infile[], uint8_t num_infiles, FILE *outfile) } } - if (i > num_infiles * FPGA_CONFIG_SIZE) { - fprintf(stderr, "Input files too big (total of %ld > %d bytes). These are probably not PM3 FPGA config files.", i, num_infiles*FPGA_CONFIG_SIZE); - for(uint16_t j = 0; j < num_infiles; j++) { - fclose(infile[j]); - } - return -1; - } } while (!all_feof(infile, num_infiles)); - fprintf(stderr, "Read a total of %ld bytes from %d files\n", i, num_infiles); - // initialize zlib structures compressed_fpga_stream.next_in = fpga_config; compressed_fpga_stream.avail_in = i; @@ -119,11 +122,9 @@ int zlib_compress(FILE *infile[], uint8_t num_infiles, FILE *outfile) // estimate the size of the compressed output unsigned int outsize_max = deflateBound(&compressed_fpga_stream, compressed_fpga_stream.avail_in); - fprintf(stderr, "Allocating %ld bytes for output file (estimated upper bound)\n", outsize_max); uint8_t *outbuf = malloc(outsize_max); compressed_fpga_stream.next_out = outbuf; compressed_fpga_stream.avail_out = outsize_max; - if (ret == Z_OK) { ret = deflateTune(&compressed_fpga_stream, @@ -137,7 +138,7 @@ int zlib_compress(FILE *infile[], uint8_t num_infiles, FILE *outfile) ret = deflate(&compressed_fpga_stream, Z_FINISH); } - fprintf(stderr, "produced %d bytes of output\n", compressed_fpga_stream.total_out); + fprintf(stderr, "compressed %lu input bytes to %lu output bytes\n", i, compressed_fpga_stream.total_out); if (ret != Z_STREAM_END) { fprintf(stderr, "Error in deflate(): %d %s\n", ret, compressed_fpga_stream.msg); @@ -149,7 +150,7 @@ int zlib_compress(FILE *infile[], uint8_t num_infiles, FILE *outfile) fclose(outfile); free(infile); free(fpga_config); - return -1; + return(EXIT_FAILURE); } for (i = 0; i < compressed_fpga_stream.total_out; i++) { @@ -165,11 +166,78 @@ int zlib_compress(FILE *infile[], uint8_t num_infiles, FILE *outfile) free(infile); free(fpga_config); - return 0; + return(EXIT_SUCCESS); } +int zlib_decompress(FILE *infile, FILE *outfile) +{ + #define DECOMPRESS_BUF_SIZE 1024 + uint8_t outbuf[DECOMPRESS_BUF_SIZE]; + uint8_t inbuf[DECOMPRESS_BUF_SIZE]; + int ret; + + z_stream compressed_fpga_stream; + + // initialize zlib structures + compressed_fpga_stream.next_in = inbuf; + compressed_fpga_stream.avail_in = 0; + compressed_fpga_stream.next_out = outbuf; + compressed_fpga_stream.avail_out = DECOMPRESS_BUF_SIZE; + compressed_fpga_stream.zalloc = fpga_deflate_malloc; + compressed_fpga_stream.zfree = fpga_deflate_free; + + ret = inflateInit2(&compressed_fpga_stream, 0); + + do { + if (compressed_fpga_stream.avail_in == 0) { + compressed_fpga_stream.next_in = inbuf; + uint16_t i = 0; + do { + uint8_t c = fgetc(infile); + if (!feof(infile)) { + inbuf[i++] = c; + compressed_fpga_stream.avail_in++; + } else { + break; + } + } while (i < DECOMPRESS_BUF_SIZE); + } + + ret = inflate(&compressed_fpga_stream, Z_SYNC_FLUSH); + + if (ret != Z_OK && ret != Z_STREAM_END) { + break; + } + + if (compressed_fpga_stream.avail_out == 0) { + for (uint16_t i = 0; i < DECOMPRESS_BUF_SIZE; i++) { + fputc(outbuf[i], outfile); + } + compressed_fpga_stream.avail_out = DECOMPRESS_BUF_SIZE; + compressed_fpga_stream.next_out = outbuf; + } + } while (ret == Z_OK); + + if (ret == Z_STREAM_END) { // reached end of input + uint16_t i = 0; + while (compressed_fpga_stream.avail_out < DECOMPRESS_BUF_SIZE) { + fputc(outbuf[i++], outfile); + compressed_fpga_stream.avail_out++; + } + fclose(outfile); + fclose(infile); + return(EXIT_SUCCESS); + } else { + fprintf(stderr, "Error. Inflate() returned error %d, %s", ret, compressed_fpga_stream.msg); + fclose(outfile); + fclose(infile); + return(EXIT_FAILURE); + } + +} + int main(int argc, char **argv) { @@ -177,25 +245,43 @@ int main(int argc, char **argv) FILE *outfile; if (argc == 1 || argc == 2) { - usage(argv[0]); - return -1; + usage(); + return(EXIT_FAILURE); } - infiles = calloc(argc-2, sizeof(FILE*)); - - for (uint16_t i = 0; i < argc-2; i++) { - infiles[i] = fopen(argv[i+1], "rb"); - if (infiles[i] == NULL) { - fprintf(stderr, "Error. Cannot open input file %s", argv[i+1]); - return -1; + if (!strcmp(argv[1], "-d")) { // Decompress + infiles = calloc(1, sizeof(FILE*)); + if (argc != 4) { + usage(); + return(EXIT_FAILURE); + } + infiles[0] = fopen(argv[2], "rb"); + if (infiles[0] == NULL) { + fprintf(stderr, "Error. Cannot open input file %s", argv[2]); + return(EXIT_FAILURE); } - } + outfile = fopen(argv[3], "wb"); + if (outfile == NULL) { + fprintf(stderr, "Error. Cannot open output file %s", argv[3]); + return(EXIT_FAILURE); + } + return zlib_decompress(infiles[0], outfile); + + } else { // Compress - outfile = fopen(argv[argc-1], "wb"); - if (outfile == NULL) { - fprintf(stderr, "Error. Cannot open output file %s", argv[argc-1]); - return -1; + infiles = calloc(argc-2, sizeof(FILE*)); + for (uint16_t i = 0; i < argc-2; i++) { + infiles[i] = fopen(argv[i+1], "rb"); + if (infiles[i] == NULL) { + fprintf(stderr, "Error. Cannot open input file %s", argv[i+1]); + return(EXIT_FAILURE); + } } - - return zlib_compress(infiles, argc-2, outfile); + outfile = fopen(argv[argc-1], "wb"); + if (outfile == NULL) { + fprintf(stderr, "Error. Cannot open output file %s", argv[argc-1]); + return(EXIT_FAILURE); + } + return zlib_compress(infiles, argc-2, outfile); + } }