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-rw-r--r--tools/default_image.c149
1 files changed, 149 insertions, 0 deletions
diff --git a/tools/default_image.c b/tools/default_image.c
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index 0000000..f5bad47
--- /dev/null
+++ b/tools/default_image.c
@@ -0,0 +1,149 @@
+/*
+ * (C) Copyright 2008 Semihalf
+ *
+ * (C) Copyright 2000-2004
+ * DENX Software Engineering
+ * Wolfgang Denk, wd@denx.de
+ *
+ * Updated-by: Prafulla Wadaskar <prafulla@marvell.com>
+ * default_image specific code abstracted from mkimage.c
+ * some functions added to address abstraction
+ *
+ * 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
+ */
+
+#include "mkimage.h"
+#include <image.h>
+#include <u-boot/crc.h>
+
+static image_header_t header;
+
+static int image_check_image_types (uint8_t type)
+{
+ if ((type > IH_TYPE_INVALID) && (type < IH_TYPE_FLATDT))
+ return EXIT_SUCCESS;
+ else
+ return EXIT_FAILURE;
+}
+
+static int image_check_params (struct mkimage_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)
+{
+ uint32_t len;
+ const unsigned char *data;
+ uint32_t checksum;
+ image_header_t header;
+ image_header_t *hdr = &header;
+
+ /*
+ * create copy of header so that we can blank out the
+ * checksum field for checking - this can't be done
+ * on the PROT_READ mapped data.
+ */
+ memcpy (hdr, ptr, sizeof(image_header_t));
+
+ if (be32_to_cpu(hdr->ih_magic) != IH_MAGIC) {
+ fprintf (stderr,
+ "%s: Bad Magic Number: \"%s\" is no valid image\n",
+ params->cmdname, params->imagefile);
+ return -FDT_ERR_BADMAGIC;
+ }
+
+ data = (const unsigned char *)hdr;
+ len = sizeof(image_header_t);
+
+ 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,
+ "%s: ERROR: \"%s\" has bad header checksum!\n",
+ params->cmdname, params->imagefile);
+ return -FDT_ERR_BADSTATE;
+ }
+
+ data = (const unsigned char *)ptr + sizeof(image_header_t);
+ len = image_size - sizeof(image_header_t) ;
+
+ checksum = be32_to_cpu(hdr->ih_dcrc);
+ if (crc32 (0, data, len) != checksum) {
+ fprintf (stderr,
+ "%s: ERROR: \"%s\" has corrupted data!\n",
+ params->cmdname, params->imagefile);
+ return -FDT_ERR_BADSTRUCTURE;
+ }
+ return 0;
+}
+
+static void image_set_header (void *ptr, struct stat *sbuf, int ifd,
+ struct mkimage_params *params)
+{
+ uint32_t checksum;
+
+ image_header_t * hdr = (image_header_t *)ptr;
+
+ 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,
+ sizeof(image_header_t));
+
+ image_set_hcrc (hdr, checksum);
+}
+
+/*
+ * Default image type parameters definition
+ */
+static struct image_type_params defimage_params = {
+ .name = "Default Image support",
+ .header_size = sizeof(image_header_t),
+ .hdr = (void*)&header,
+ .check_image_type = image_check_image_types,
+ .verify_header = image_verify_header,
+ .print_header = image_print_contents,
+ .set_header = image_set_header,
+ .check_params = image_check_params,
+};
+
+void init_default_image_type (void)
+{
+ mkimage_register (&defimage_params);
+}