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-rw-r--r--tools/fit_common.c197
1 files changed, 197 insertions, 0 deletions
diff --git a/tools/fit_common.c b/tools/fit_common.c
new file mode 100644
index 00000000000..d1cde16c1cb
--- /dev/null
+++ b/tools/fit_common.c
@@ -0,0 +1,197 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * (C) Copyright 2014
+ * DENX Software Engineering
+ * Heiko Schocher <hs@denx.de>
+ *
+ * (C) Copyright 2008 Semihalf
+ *
+ * (C) Copyright 2000-2004
+ * DENX Software Engineering
+ * Wolfgang Denk, wd@denx.de
+ *
+ * Updated-by: Prafulla Wadaskar <prafulla@marvell.com>
+ * FIT image specific code abstracted from mkimage.c
+ * some functions added to address abstraction
+ *
+ * All rights reserved.
+ */
+
+#include "imagetool.h"
+#include "mkimage.h"
+#include "fit_common.h"
+#include <image.h>
+#include <u-boot/crc.h>
+
+#define COPYFILE_BUFSIZE (64 * 1024)
+
+void fit_print_header(const void *fit, struct image_tool_params *params)
+{
+ fit_print_contents(fit);
+}
+
+int fit_verify_header(unsigned char *ptr, int image_size,
+ struct image_tool_params *params)
+{
+ int ret;
+
+ if (fdt_check_header(ptr) != EXIT_SUCCESS)
+ return EXIT_FAILURE;
+
+ ret = fit_check_format(ptr, IMAGE_SIZE_INVAL);
+ if (ret) {
+ if (ret != -EADDRNOTAVAIL)
+ return EXIT_FAILURE;
+ fprintf(stderr, "Image contains unit addresses @, this will break signing\n");
+ }
+
+ return EXIT_SUCCESS;
+}
+
+int fit_check_image_types(uint8_t type)
+{
+ if (type == IH_TYPE_FLATDT)
+ return EXIT_SUCCESS;
+ else
+ return EXIT_FAILURE;
+}
+
+int mmap_fdt(const char *cmdname, const char *fname, size_t size_inc,
+ void **blobp, struct stat *sbuf, bool delete_on_error,
+ bool read_only)
+{
+ void *ptr;
+ int fd;
+
+ /* Load FIT blob into memory (we need to write hashes/signatures) */
+ fd = open(fname, (read_only ? O_RDONLY : O_RDWR) | O_BINARY);
+
+ if (fd < 0) {
+ fprintf(stderr, "%s: Can't open %s: %s\n",
+ cmdname, fname, strerror(errno));
+ goto err;
+ }
+
+ if (fstat(fd, sbuf) < 0) {
+ fprintf(stderr, "%s: Can't stat %s: %s\n",
+ cmdname, fname, strerror(errno));
+ goto err;
+ }
+
+ if (size_inc) {
+ sbuf->st_size += size_inc;
+ if (ftruncate(fd, sbuf->st_size)) {
+ fprintf(stderr, "%s: Can't expand %s: %s\n",
+ cmdname, fname, strerror(errno));
+ goto err;
+ }
+ }
+
+ errno = 0;
+ ptr = mmap(0, sbuf->st_size,
+ (read_only ? PROT_READ : PROT_READ | PROT_WRITE), MAP_SHARED,
+ fd, 0);
+ if ((ptr == MAP_FAILED) || (errno != 0)) {
+ fprintf(stderr, "%s: Can't read %s: %s\n",
+ cmdname, fname, strerror(errno));
+ goto err;
+ }
+
+ /* check if ptr has a valid blob */
+ if (fdt_check_header(ptr)) {
+ fprintf(stderr, "%s: Invalid FIT blob\n", cmdname);
+ goto err;
+ }
+
+ /* expand if needed */
+ if (size_inc) {
+ int ret;
+
+ ret = fdt_open_into(ptr, ptr, sbuf->st_size);
+ if (ret) {
+ fprintf(stderr, "%s: Cannot expand FDT: %s\n",
+ cmdname, fdt_strerror(ret));
+ goto err;
+ }
+ }
+
+ *blobp = ptr;
+ return fd;
+
+err:
+ if (fd >= 0)
+ close(fd);
+ if (delete_on_error)
+ unlink(fname);
+
+ return -1;
+}
+
+int copyfile(const char *src, const char *dst)
+{
+ int fd_src = -1, fd_dst = -1;
+ void *buf = NULL;
+ ssize_t size;
+ size_t count;
+ int ret = -1;
+
+ fd_src = open(src, O_RDONLY);
+ if (fd_src < 0) {
+ printf("Can't open file %s (%s)\n", src, strerror(errno));
+ goto out;
+ }
+
+ fd_dst = open(dst, O_WRONLY | O_CREAT | O_TRUNC, 0666);
+ if (fd_dst < 0) {
+ printf("Can't open file %s (%s)\n", dst, strerror(errno));
+ goto out;
+ }
+
+ buf = calloc(1, COPYFILE_BUFSIZE);
+ if (!buf) {
+ printf("Can't allocate buffer to copy file\n");
+ goto out;
+ }
+
+ while (1) {
+ size = read(fd_src, buf, COPYFILE_BUFSIZE);
+ if (size < 0) {
+ printf("Can't read file %s\n", src);
+ goto out;
+ }
+ if (!size)
+ break;
+
+ count = size;
+ size = write(fd_dst, buf, count);
+ if (size < 0) {
+ printf("Can't write file %s\n", dst);
+ goto out;
+ }
+ }
+
+ ret = 0;
+
+ out:
+ if (fd_src >= 0)
+ close(fd_src);
+ if (fd_dst >= 0)
+ close(fd_dst);
+ if (buf)
+ free(buf);
+
+ return ret;
+}
+
+void summary_show(struct image_summary *summary, const char *imagefile,
+ const char *keydest)
+{
+ if (summary->sig_offset) {
+ printf("Signature written to '%s', node '%s'\n", imagefile,
+ summary->sig_path);
+ if (keydest) {
+ printf("Public key written to '%s', node '%s'\n",
+ keydest, summary->keydest_path);
+ }
+ }
+}