mtd/src/imagetag.c

50 #define RSASIG_LEN		20	/* Length of RSA Signature in tag */
51 #define TAGINFO1_LEN		30	/* Length of vendor information field1 in tag */
52 #define FLASHLAYOUTVER_LEN	4	/* Length of Flash Layout Version String tag */
53 #define TAGINFO2_LEN		16	/* Length of vendor information field2 in tag */
74 	/* 0-3: Version of the image tag */
179 	struct bcm_tag *tag;
205 	tag = (struct bcm_tag *) (ptr);
207 	cfelen = strntoul(&tag->cfe_length[0], NULL, 10, IMAGE_LEN);
214 	if (headercrc != *(uint32_t *)(&tag->header_crc)) {
219 	sprintf(&tag->root_length[0], "%u", 0);
220 	strncpy(&tag->total_length[0], &tag->kernel_length[0], IMAGE_LEN);
222 	imagestart = sizeof(tag);
223 	memcpy(&tag->image_crc, &tag->kernel_crc, sizeof(uint32_t));
224 	memcpy(&tag->fskernel_crc, &tag->kernel_crc, sizeof(uint32_t));
226 	memcpy(&tag->rootfs_crc, &rootfscrc, sizeof(uint32_t));
227 	headercrc = crc32(CRC_START, tag, offsetof(struct bcm_tag, header_crc));
228 	memcpy(&tag->header_crc, &headercrc, sizeof(uint32_t));
246     struct bcm_tag *tag = (const struct bcm_tag *) buf;
260 	if (*(uint32_t *)(&tag->header_crc) != headerCRC) {
264 				*(uint32_t *)(&tag->header_crc), headerCRC);
278 	imageLen = strntoul(&tag->total_length[0], NULL, 10, IMAGE_LEN);
294 	struct bcm_tag *tag;
334 	tag = (struct bcm_tag *) (buf + offset);
336 	cfelen = strntoul(tag->cfe_length, NULL, 10, IMAGE_LEN);
347 	if (headercrc != *(uint32_t *)(&tag->header_crc)) {
356 	rootfslen = strntoul(&tag->root_length[0], NULL, 10, IMAGE_LEN);
368 	sprintf(&tag->root_length[0], "%u", 0);
369 	strncpy(&tag->total_length[0], &tag->kernel_length[0], IMAGE_LEN);
375 	imagestart = sizeof(tag);
376 	memcpy(&tag->image_crc, &tag->kernel_crc, sizeof(uint32_t));
377 	memcpy(&tag->fskernel_crc, &tag->kernel_crc, sizeof(uint32_t));
379 	memcpy(&tag->rootfs_crc, &rootfscrc, sizeof(uint32_t));
380 	headercrc = crc32(CRC_START, tag, offsetof(struct bcm_tag, header_crc));
381 	memcpy(&tag->header_crc, &headercrc, sizeof(uint32_t));
394 			  *(uint32_t *)(&tag->image_crc));