diff options
Diffstat (limited to 'tools/imls/imls.c')
| -rw-r--r-- | tools/imls/imls.c | 256 |
1 files changed, 0 insertions, 256 deletions
diff --git a/tools/imls/imls.c b/tools/imls/imls.c deleted file mode 100644 index 95043b4..0000000 --- a/tools/imls/imls.c +++ /dev/null @@ -1,256 +0,0 @@ -/* - * (C) Copyright 2009 Marco Stornelli - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <errno.h> -#include <fcntl.h> -#include <stdio.h> -#include <stdlib.h> -#include <stddef.h> -#include <string.h> -#include <sys/types.h> -#include <sys/ioctl.h> -#include <sys/stat.h> -#include <unistd.h> -#include <asm/page.h> - -#ifdef MTD_OLD -#include <stdint.h> -#include <linux/mtd/mtd.h> -#else -#define __user /* nothing */ -#include <mtd/mtd-user.h> -#endif - -#include <sha1.h> -#include <libfdt.h> -#include <fdt_support.h> -#include <image.h> - -#define MIN(a, b) (((a) < (b)) ? (a) : (b)) - -extern unsigned long crc32(unsigned long crc, const char *buf, unsigned int len); -static void usage(void); -static int image_verify_header(char *ptr, int fd); -static int flash_bad_block(int fd, uint8_t mtd_type, loff_t start); - -char *cmdname; -char *devicefile; - -unsigned int sectorcount = 0; -int sflag = 0; -unsigned int sectoroffset = 0; -unsigned int sectorsize = 0; -int cflag = 0; - -int main (int argc, char **argv) -{ - int fd = -1, err = 0, readbyte = 0, j; - struct mtd_info_user mtdinfo; - char buf[sizeof(image_header_t)]; - int found = 0; - - cmdname = *argv; - - while (--argc > 0 && **++argv == '-') { - while (*++*argv) { - switch (**argv) { - case 'c': - if (--argc <= 0) - usage (); - sectorcount = (unsigned int)atoi(*++argv); - cflag = 1; - goto NXTARG; - case 'o': - if (--argc <= 0) - usage (); - sectoroffset = (unsigned int)atoi(*++argv); - goto NXTARG; - - case 's': - if (--argc <= 0) - usage (); - sectorsize = (unsigned int)atoi(*++argv); - sflag = 1; - goto NXTARG; - default: - usage (); - } - } -NXTARG: ; - } - - if (argc != 1 || cflag == 0 || sflag == 0) - usage(); - - devicefile = *argv; - - fd = open(devicefile, O_RDONLY); - if (fd < 0) { - fprintf (stderr, "%s: Can't open %s: %s\n", - cmdname, devicefile, strerror(errno)); - exit(EXIT_FAILURE); - } - - err = ioctl(fd, MEMGETINFO, &mtdinfo); - if (err < 0) { - fprintf(stderr, "%s: Cannot get MTD information: %s\n",cmdname, - strerror(errno)); - exit(EXIT_FAILURE); - } - - if (mtdinfo.type != MTD_NORFLASH && mtdinfo.type != MTD_NANDFLASH) { - fprintf(stderr, "%s: Unsupported flash type %u\n", - cmdname, mtdinfo.type); - exit(EXIT_FAILURE); - } - - if (sectorsize * sectorcount != mtdinfo.size) { - fprintf(stderr, "%s: Partition size (%d) incompatible with " - "sector size and count\n", cmdname, mtdinfo.size); - exit(EXIT_FAILURE); - } - - if (sectorsize * sectoroffset >= mtdinfo.size) { - fprintf(stderr, "%s: Partition size (%d) incompatible with " - "sector offset given\n", cmdname, mtdinfo.size); - exit(EXIT_FAILURE); - } - - if (sectoroffset > sectorcount - 1) { - fprintf(stderr, "%s: Sector offset cannot be grater than " - "sector count minus one\n", cmdname); - exit(EXIT_FAILURE); - } - - printf("Searching....\n"); - - for (j = sectoroffset; j < sectorcount; ++j) { - - if (lseek(fd, j*sectorsize, SEEK_SET) != j*sectorsize) { - fprintf(stderr, "%s: lseek failure: %s\n", - cmdname, strerror(errno)); - exit(EXIT_FAILURE); - } - - err = flash_bad_block(fd, mtdinfo.type, j*sectorsize); - if (err < 0) - exit(EXIT_FAILURE); - if (err) - continue; /* Skip and jump to next */ - - readbyte = read(fd, buf, sizeof(image_header_t)); - if (readbyte != sizeof(image_header_t)) { - fprintf(stderr, "%s: Can't read from device: %s\n", - cmdname, strerror(errno)); - exit(EXIT_FAILURE); - } - - if (fdt_check_header(buf)) { - /* old-style image */ - if (image_verify_header(buf, fd)) { - found = 1; - image_print_contents((image_header_t *)buf); - } - } else { - /* FIT image */ - fit_print_contents(buf); - } - - } - - close(fd); - - if(!found) - printf("No images found\n"); - - exit(EXIT_SUCCESS); -} - -void usage() -{ - fprintf (stderr, "Usage:\n" - " %s [-o offset] -s size -c count device\n" - " -o ==> number of sectors to use as offset\n" - " -c ==> number of sectors\n" - " -s ==> size of sectors (byte)\n", - cmdname); - - exit(EXIT_FAILURE); -} - -static int image_verify_header(char *ptr, int fd) -{ - int len, nread; - char *data; - uint32_t checksum; - image_header_t *hdr = (image_header_t *)ptr; - char buf[PAGE_SIZE]; - - if (image_get_magic(hdr) != IH_MAGIC) - return 0; - - data = (char *)hdr; - len = image_get_header_size(); - - checksum = image_get_hcrc(hdr); - hdr->ih_hcrc = htonl(0); /* clear for re-calculation */ - - if (crc32(0, data, len) != checksum) { - fprintf(stderr, - "%s: Maybe image found but it has bad header checksum!\n", - cmdname); - return 0; - } - - len = image_get_size(hdr); - checksum = 0; - - while (len > 0) { - nread = read(fd, buf, MIN(len,PAGE_SIZE)); - if (nread != MIN(len,PAGE_SIZE)) { - fprintf(stderr, - "%s: Error while reading: %s\n", - cmdname, strerror(errno)); - exit(EXIT_FAILURE); - } - checksum = crc32(checksum, buf, nread); - len -= nread; - } - - if (checksum != image_get_dcrc(hdr)) { - fprintf (stderr, - "%s: Maybe image found but it has corrupted data!\n", - cmdname); - return 0; - } - - return 1; -} - -/* - * Test for bad block on NAND, just returns 0 on NOR, on NAND: - * 0 - block is good - * > 0 - block is bad - * < 0 - failed to test - */ -static int flash_bad_block(int fd, uint8_t mtd_type, loff_t start) -{ - if (mtd_type == MTD_NANDFLASH) { - int badblock = ioctl(fd, MEMGETBADBLOCK, &start); - - if (badblock < 0) { - fprintf(stderr,"%s: Cannot read bad block mark: %s\n", - cmdname, strerror(errno)); - return badblock; - } - - if (badblock) { - return badblock; - } - } - - return 0; -} |