diff options
author | Yang Zhang <yang.z.zhang@intel.com> | 2015-08-28 09:58:54 +0800 |
---|---|---|
committer | Yang Zhang <yang.z.zhang@intel.com> | 2015-09-01 12:44:00 +0800 |
commit | e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb (patch) | |
tree | 66b09f592c55df2878107a468a91d21506104d3f /qemu/roms/u-boot/tools/dumpimage.c | |
parent | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (diff) |
Add qemu 2.4.0
Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5
Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Diffstat (limited to 'qemu/roms/u-boot/tools/dumpimage.c')
-rw-r--r-- | qemu/roms/u-boot/tools/dumpimage.c | 305 |
1 files changed, 305 insertions, 0 deletions
diff --git a/qemu/roms/u-boot/tools/dumpimage.c b/qemu/roms/u-boot/tools/dumpimage.c new file mode 100644 index 000000000..542ee2821 --- /dev/null +++ b/qemu/roms/u-boot/tools/dumpimage.c @@ -0,0 +1,305 @@ +/* + * Based on mkimage.c. + * + * Written by Guilherme Maciel Ferreira <guilherme.maciel.ferreira@gmail.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include "dumpimage.h" +#include <image.h> +#include <version.h> + +static void usage(void); + +/* image_type_params linked list to maintain registered image types supports */ +static struct image_type_params *dumpimage_tparams; + +/* parameters initialized by core will be used by the image type code */ +static struct image_tool_params params = { + .type = IH_TYPE_KERNEL, +}; + +/** + * dumpimage_register() - register respective image generation/list support + * + * the input struct image_type_params is checked and appended to the link + * list, if the input structure is already registered, issue an error + * + * @tparams: Image type parameters + */ +static void dumpimage_register(struct image_type_params *tparams) +{ + struct image_type_params **tp; + + if (!tparams) { + fprintf(stderr, "%s: %s: Null input\n", params.cmdname, + __func__); + exit(EXIT_FAILURE); + } + + /* scan the linked list, check for registry and point the last one */ + for (tp = &dumpimage_tparams; *tp != NULL; tp = &(*tp)->next) { + if (!strcmp((*tp)->name, tparams->name)) { + fprintf(stderr, "%s: %s already registered\n", + params.cmdname, tparams->name); + return; + } + } + + /* add input struct entry at the end of link list */ + *tp = tparams; + /* mark input entry as last entry in the link list */ + tparams->next = NULL; + + debug("Registered %s\n", tparams->name); +} + +/** + * dumpimage_get_type() - find the image type params for a given image type + * + * Scan all registered image types and check the input type_id for each + * supported image type + * + * @return respective image_type_params pointer. If the input type is not + * supported by any of registered image types, returns NULL + */ +static struct image_type_params *dumpimage_get_type(int type) +{ + struct image_type_params *curr; + + for (curr = dumpimage_tparams; curr != NULL; curr = curr->next) { + if (curr->check_image_type) { + if (!curr->check_image_type(type)) + return curr; + } + } + return NULL; +} + +/* + * dumpimage_verify_print_header() - verifies the image header + * + * Scan registered image types and verify the image_header for each + * supported image type. If verification is successful, this prints + * the respective header. + * + * @return 0 on success, negative if input image format does not match with + * any of supported image types + */ +static int dumpimage_verify_print_header(void *ptr, struct stat *sbuf) +{ + int retval = -1; + struct image_type_params *curr; + + for (curr = dumpimage_tparams; curr != NULL; curr = curr->next) { + if (curr->verify_header) { + retval = curr->verify_header((unsigned char *)ptr, + sbuf->st_size, ¶ms); + if (retval != 0) + continue; + /* + * Print the image information if verify is + * successful + */ + if (curr->print_header) { + curr->print_header(ptr); + } else { + fprintf(stderr, + "%s: print_header undefined for %s\n", + params.cmdname, curr->name); + } + break; + } + } + + return retval; +} + +/* + * dumpimage_extract_datafile - + * + * It scans all registered image types, + * verifies image_header for each supported image type + * if verification is successful, it extracts the desired file, + * indexed by pflag, from the image + * + * returns negative if input image format does not match with any of + * supported image types + */ +static int dumpimage_extract_datafile(void *ptr, struct stat *sbuf) +{ + int retval = -1; + struct image_type_params *curr; + + for (curr = dumpimage_tparams; curr != NULL; curr = curr->next) { + if (curr->verify_header) { + retval = curr->verify_header((unsigned char *)ptr, + sbuf->st_size, ¶ms); + if (retval != 0) + continue; + /* + * Extract the file from the image + * if verify is successful + */ + if (curr->extract_datafile) { + curr->extract_datafile(ptr, ¶ms); + } else { + fprintf(stderr, + "%s: extract_datafile undefined for %s\n", + params.cmdname, curr->name); + break; + } + } + } + + return retval; +} + +int main(int argc, char **argv) +{ + int opt; + int ifd = -1; + struct stat sbuf; + char *ptr; + int retval = 0; + struct image_type_params *tparams = NULL; + + /* Init all image generation/list support */ + register_image_tool(dumpimage_register); + + params.cmdname = *argv; + + while ((opt = getopt(argc, argv, "li:o:p:V")) != -1) { + switch (opt) { + case 'l': + params.lflag = 1; + break; + case 'i': + params.imagefile = optarg; + params.iflag = 1; + break; + case 'o': + params.outfile = optarg; + break; + case 'p': + params.pflag = strtoul(optarg, &ptr, 10); + if (*ptr) { + fprintf(stderr, + "%s: invalid file position %s\n", + params.cmdname, *argv); + exit(EXIT_FAILURE); + } + break; + case 'V': + printf("dumpimage version %s\n", PLAIN_VERSION); + exit(EXIT_SUCCESS); + default: + usage(); + } + } + + if (optind >= argc) + usage(); + + /* set tparams as per input type_id */ + tparams = dumpimage_get_type(params.type); + if (tparams == NULL) { + fprintf(stderr, "%s: unsupported type %s\n", + params.cmdname, genimg_get_type_name(params.type)); + exit(EXIT_FAILURE); + } + + /* + * check the passed arguments parameters meets the requirements + * as per image type to be generated/listed + */ + if (tparams->check_params) { + if (tparams->check_params(¶ms)) + usage(); + } + + if (params.iflag) + params.datafile = argv[optind]; + else + params.imagefile = argv[optind]; + if (!params.outfile) + params.outfile = params.datafile; + + ifd = open(params.imagefile, O_RDONLY|O_BINARY); + if (ifd < 0) { + fprintf(stderr, "%s: Can't open \"%s\": %s\n", + params.cmdname, params.imagefile, + strerror(errno)); + exit(EXIT_FAILURE); + } + + if (params.lflag || params.iflag) { + if (fstat(ifd, &sbuf) < 0) { + fprintf(stderr, "%s: Can't stat \"%s\": %s\n", + params.cmdname, params.imagefile, + strerror(errno)); + exit(EXIT_FAILURE); + } + + if ((unsigned)sbuf.st_size < tparams->header_size) { + fprintf(stderr, + "%s: Bad size: \"%s\" is not valid image\n", + params.cmdname, params.imagefile); + exit(EXIT_FAILURE); + } + + ptr = mmap(0, sbuf.st_size, PROT_READ, MAP_SHARED, ifd, 0); + if (ptr == MAP_FAILED) { + fprintf(stderr, "%s: Can't read \"%s\": %s\n", + params.cmdname, params.imagefile, + strerror(errno)); + exit(EXIT_FAILURE); + } + + /* + * Both calls bellow scan through dumpimage registry for all + * supported image types and verify the input image file + * header for match + */ + if (params.iflag) { + /* + * Extract the data files from within the matched + * image type. Returns the error code if not matched + */ + retval = dumpimage_extract_datafile(ptr, &sbuf); + } else { + /* + * Print the image information for matched image type + * Returns the error code if not matched + */ + retval = dumpimage_verify_print_header(ptr, &sbuf); + } + + (void)munmap((void *)ptr, sbuf.st_size); + (void)close(ifd); + + return retval; + } + + (void)close(ifd); + + return EXIT_SUCCESS; +} + +static void usage(void) +{ + fprintf(stderr, "Usage: %s -l image\n" + " -l ==> list image header information\n", + params.cmdname); + fprintf(stderr, + " %s -i image [-p position] [-o outfile] data_file\n" + " -i ==> extract from the 'image' a specific 'data_file'" + ", indexed by 'position' (starting at 0)\n", + params.cmdname); + fprintf(stderr, + " %s -V ==> print version information and exit\n", + params.cmdname); + + exit(EXIT_FAILURE); +} |