X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=tools%2Fdefault_image.c;h=0a0792e503eadefe058f51db90c5fe98fcc2e1e2;hb=3f990dc83bc3197b17bd847241671917826152cc;hp=f5bad4757dbb608eadc673105473046b6993f310;hpb=89a4d6b12fd6394898b8a454cbabeaf1cd59bae5;p=oweals%2Fu-boot.git diff --git a/tools/default_image.c b/tools/default_image.c index f5bad4757d..0a0792e503 100644 --- a/tools/default_image.c +++ b/tools/default_image.c @@ -11,45 +11,33 @@ * * All rights reserved. * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA + * SPDX-License-Identifier: GPL-2.0+ */ -#include "mkimage.h" +#include "imagetool.h" #include #include static image_header_t header; -static int image_check_image_types (uint8_t type) +static int image_check_image_types(uint8_t type) { - if ((type > IH_TYPE_INVALID) && (type < IH_TYPE_FLATDT)) + if (((type > IH_TYPE_INVALID) && (type < IH_TYPE_FLATDT)) || + (type == IH_TYPE_KERNEL_NOLOAD)) return EXIT_SUCCESS; else return EXIT_FAILURE; } -static int image_check_params (struct mkimage_params *params) +static int image_check_params(struct image_tool_params *params) { return ((params->dflag && (params->fflag || params->lflag)) || (params->fflag && (params->dflag || params->lflag)) || (params->lflag && (params->dflag || params->fflag))); } -static int image_verify_header (unsigned char *ptr, int image_size, - struct mkimage_params *params) +static int image_verify_header(unsigned char *ptr, int image_size, + struct image_tool_params *params) { uint32_t len; const unsigned char *data; @@ -62,10 +50,10 @@ static int image_verify_header (unsigned char *ptr, int image_size, * checksum field for checking - this can't be done * on the PROT_READ mapped data. */ - memcpy (hdr, ptr, sizeof(image_header_t)); + memcpy(hdr, ptr, sizeof(image_header_t)); if (be32_to_cpu(hdr->ih_magic) != IH_MAGIC) { - fprintf (stderr, + fprintf(stderr, "%s: Bad Magic Number: \"%s\" is no valid image\n", params->cmdname, params->imagefile); return -FDT_ERR_BADMAGIC; @@ -77,8 +65,8 @@ static int image_verify_header (unsigned char *ptr, int image_size, checksum = be32_to_cpu(hdr->ih_hcrc); hdr->ih_hcrc = cpu_to_be32(0); /* clear for re-calculation */ - if (crc32 (0, data, len) != checksum) { - fprintf (stderr, + if (crc32(0, data, len) != checksum) { + fprintf(stderr, "%s: ERROR: \"%s\" has bad header checksum!\n", params->cmdname, params->imagefile); return -FDT_ERR_BADSTATE; @@ -88,8 +76,8 @@ static int image_verify_header (unsigned char *ptr, int image_size, len = image_size - sizeof(image_header_t) ; checksum = be32_to_cpu(hdr->ih_dcrc); - if (crc32 (0, data, len) != checksum) { - fprintf (stderr, + if (crc32(0, data, len) != checksum) { + fprintf(stderr, "%s: ERROR: \"%s\" has corrupted data!\n", params->cmdname, params->imagefile); return -FDT_ERR_BADSTRUCTURE; @@ -97,36 +85,92 @@ static int image_verify_header (unsigned char *ptr, int image_size, return 0; } -static void image_set_header (void *ptr, struct stat *sbuf, int ifd, - struct mkimage_params *params) +static void image_set_header(void *ptr, struct stat *sbuf, int ifd, + struct image_tool_params *params) { uint32_t checksum; image_header_t * hdr = (image_header_t *)ptr; - checksum = crc32 (0, + checksum = crc32(0, (const unsigned char *)(ptr + sizeof(image_header_t)), sbuf->st_size - sizeof(image_header_t)); /* Build new header */ - image_set_magic (hdr, IH_MAGIC); - image_set_time (hdr, sbuf->st_mtime); - image_set_size (hdr, sbuf->st_size - sizeof(image_header_t)); - image_set_load (hdr, params->addr); - image_set_ep (hdr, params->ep); - image_set_dcrc (hdr, checksum); - image_set_os (hdr, params->os); - image_set_arch (hdr, params->arch); - image_set_type (hdr, params->type); - image_set_comp (hdr, params->comp); - - image_set_name (hdr, params->imagename); - - checksum = crc32 (0, (const unsigned char *)hdr, + image_set_magic(hdr, IH_MAGIC); + image_set_time(hdr, sbuf->st_mtime); + image_set_size(hdr, sbuf->st_size - sizeof(image_header_t)); + image_set_load(hdr, params->addr); + image_set_ep(hdr, params->ep); + image_set_dcrc(hdr, checksum); + image_set_os(hdr, params->os); + image_set_arch(hdr, params->arch); + image_set_type(hdr, params->type); + image_set_comp(hdr, params->comp); + + image_set_name(hdr, params->imagename); + + checksum = crc32(0, (const unsigned char *)hdr, sizeof(image_header_t)); - image_set_hcrc (hdr, checksum); + image_set_hcrc(hdr, checksum); +} + +static int image_save_datafile(struct image_tool_params *params, + ulong file_data, ulong file_len) +{ + int dfd; + const char *datafile = params->outfile; + + dfd = open(datafile, O_RDWR | O_CREAT | O_TRUNC | O_BINARY, + S_IRUSR | S_IWUSR); + if (dfd < 0) { + fprintf(stderr, "%s: Can't open \"%s\": %s\n", + params->cmdname, datafile, strerror(errno)); + return -1; + } + + if (write(dfd, (void *)file_data, file_len) != (ssize_t)file_len) { + fprintf(stderr, "%s: Write error on \"%s\": %s\n", + params->cmdname, datafile, strerror(errno)); + close(dfd); + return -1; + } + + close(dfd); + + return 0; +} + +static int image_extract_datafile(void *ptr, struct image_tool_params *params) +{ + const image_header_t *hdr = (const image_header_t *)ptr; + ulong file_data; + ulong file_len; + + if (image_check_type(hdr, IH_TYPE_MULTI)) { + ulong idx = params->pflag; + ulong count; + + /* get the number of data files present in the image */ + count = image_multi_count(hdr); + + /* retrieve the "data file" at the idx position */ + image_multi_getimg(hdr, idx, &file_data, &file_len); + + if ((file_len == 0) || (idx >= count)) { + fprintf(stderr, "%s: No such data file %ld in \"%s\"\n", + params->cmdname, idx, params->imagefile); + return -1; + } + } else { + file_data = image_get_data(hdr); + file_len = image_get_size(hdr); + } + + /* save the "data file" into the file system */ + return image_save_datafile(params, file_data, file_len); } /* @@ -140,10 +184,11 @@ static struct image_type_params defimage_params = { .verify_header = image_verify_header, .print_header = image_print_contents, .set_header = image_set_header, + .extract_datafile = image_extract_datafile, .check_params = image_check_params, }; -void init_default_image_type (void) +void init_default_image_type(void) { - mkimage_register (&defimage_params); + register_image_type(&defimage_params); }