static int fit_add_file_data(struct image_tool_params *params, size_t size_inc,
const char *tmpfile)
{
int tfd, destfd = 0;
void *dest_blob = NULL;
off_t destfd_size = 0;
struct stat sbuf;
void *ptr;
int ret = 0;
tfd = mmap_fdt(params->cmdname, tmpfile, size_inc, &ptr, &sbuf, true);
if (tfd < 0)
return -EIO;
if (params->keydest) {
struct stat dest_sbuf;
destfd = mmap_fdt(params->cmdname, params->keydest, size_inc,
&dest_blob, &dest_sbuf, false);
if (destfd < 0) {
ret = -EIO;
goto err_keydest;
}
destfd_size = dest_sbuf.st_size;
}
/* for first image creation, add a timestamp at offset 0 i.e., root */
if (params->datafile) {
time_t time = imagetool_get_source_date(params->cmdname,
sbuf.st_mtime);
ret = fit_set_timestamp(ptr, 0, time);
}
if (!ret) {
ret = fit_add_verification_data(params->keydir, dest_blob, ptr,
params->comment,
params->require_keys,
params->engine_id,
params->cmdname);
}
if (dest_blob) {
munmap(dest_blob, destfd_size);
close(destfd);
}
err_keydest:
munmap(ptr, sbuf.st_size);
close(tfd);
return ret;
}
int main(int argc, char **argv)
{
int ffd = -1;
int kfd = -1;
struct stat fsbuf;
struct stat ksbuf;
void *fit_blob;
char *fdtfile = NULL;
char *keyfile = NULL;
char cmdname[256];
int ret;
void *key_blob;
int c;
strncpy(cmdname, *argv, sizeof(cmdname) - 1);
cmdname[sizeof(cmdname) - 1] = '\0';
while ((c = getopt(argc, argv, "f:k:")) != -1)
switch (c) {
case 'f':
fdtfile = optarg;
break;
case 'k':
keyfile = optarg;
break;
default:
usage(cmdname);
break;
}
ffd = mmap_fdt(cmdname, fdtfile, &fit_blob, &fsbuf, 0);
if (ffd < 0)
return EXIT_FAILURE;
kfd = mmap_fdt(cmdname, keyfile, &key_blob, &ksbuf, 0);
if (ffd < 0)
return EXIT_FAILURE;
image_set_host_blob(key_blob);
ret = fit_check_sign(fit_blob, key_blob);
if (ret)
ret = EXIT_SUCCESS;
else
ret = EXIT_FAILURE;
(void) munmap((void *)fit_blob, fsbuf.st_size);
(void) munmap((void *)key_blob, ksbuf.st_size);
close(ffd);
close(kfd);
exit(ret);
}
int main(int argc, char **argv)
{
int ffd = -1;
struct stat fsbuf;
void *fit_blob;
int len;
int nodeoffset; /* node offset from libfdt */
const void *nodep; /* property node pointer */
char *fdtfile = NULL;
char *nodename = NULL;
char *propertyname = NULL;
char cmdname[50];
int c;
strcpy(cmdname, *argv);
while ((c = getopt(argc, argv, "f:n:p:")) != -1)
switch (c) {
case 'f':
fdtfile = optarg;
break;
case 'n':
nodename = optarg;
break;
case 'p':
propertyname = optarg;
break;
default:
usage(cmdname);
break;
}
ffd = mmap_fdt(cmdname, fdtfile, &fit_blob, &fsbuf, 0);
if (ffd < 0) {
printf("Could not open %s\n", fdtfile);
exit(EXIT_FAILURE);
}
nodeoffset = fdt_path_offset(fit_blob, nodename);
if (nodeoffset < 0) {
printf("%s not found.", nodename);
exit(EXIT_FAILURE);
}
nodep = fdt_getprop(fit_blob, nodeoffset, propertyname, &len);
if (len == 0) {
printf("len == 0 %s\n", propertyname);
exit(EXIT_FAILURE);
}
printf("NAME: %s\n", fit_get_name(fit_blob, nodeoffset, NULL));
printf("LEN: %d\n", len);
printf("OFF: %d\n", (int)(nodep - fit_blob));
(void) munmap((void *)fit_blob, fsbuf.st_size);
close(ffd);
exit(EXIT_SUCCESS);
}
int fit_list_image(int argc, char **argv) {
if(argc - optind != 1) {
fprintf(stderr,
"Usage:\n"
" %s -l [fit_image].itb\n", argv[0]);
return -1;
}
char *filename = argv[optind];
void *fit;
struct stat sbuf;
if(mmap_fdt(filename, &fit, &sbuf) < 0) {
printf("failed to mmap file\n");
return -1;
}
time_t t;
int noffset = fdt_path_offset(fit, "/");
const char *description = fdt_getprop(fit, noffset, "description", NULL);
if(!description) {
description = "Unavailable";
}
const char *timestamp = "Unavailable";
const fdt32_t *time_fdt = fdt_getprop(fit, noffset, "timestamp", NULL);
if(time_fdt) {
t = fdt32_to_cpu(*time_fdt);
timestamp = ctime(&t);
}
printf("FIT description : %s\n", description);
printf("Generated : %s", timestamp);
int images_offset = fdt_path_offset(fit, "/images");
if(images_offset < 0) {
fprintf(stderr, "Can't find /images node in %s\n", filename);
return -1;
}
fit_list_images(fit, images_offset);
int configs_offset = fdt_path_offset(fit, "/configurations");
fit_list_configs(fit, configs_offset);
return 0;
}
int fit_image(int argc, char **argv) {
if(argc - optind != 2) {
fprintf(stderr,
"Usage:\n"
" %s -f [fit_source].its [fit_image].itb\n", argv[0]);
return -1;
}
char *source = argv[optind];
char *dest = argv[optind+1];
char commandline[4096];
snprintf(commandline, 4096, "../dtc/dtc -S dts -O dtb -p 500 %s -o %s", source, dest);
if(system(commandline) < 0) {
fprintf(stderr, "Failed to execute the dtc: %s (%s)\n", commandline, strerror(errno));
return -1;
}
void *ptr;
struct stat sbuf;
int tfd = mmap_fdt(dest, &ptr, &sbuf);
if(tfd < 0) {
goto err_mmap;
}
if(fit_add_verification_data(ptr, "no comment")) {
fprintf(stderr, "Failed to add hashes to FIT blob\n");
goto err_add_hashes;
}
fit_set_timestamp(ptr, 0, sbuf.st_mtime);
return 0;
err_add_hashes:
munmap(ptr, sbuf.st_size);
err_mmap:
return -1;
}
/**
* fit_handle_file - main FIT file processing function
*
* fit_handle_file() runs dtc to convert .its to .itb, includes
* binary data, updates timestamp property and calculates hashes.
*
* datafile - .its file
* imagefile - .itb file
*
* returns:
* only on success, otherwise calls exit (EXIT_FAILURE);
*/
static int fit_handle_file (struct mkimage_params *params)
{
char tmpfile[MKIMAGE_MAX_TMPFILE_LEN];
char cmd[MKIMAGE_MAX_DTC_CMDLINE_LEN];
int tfd, destfd = 0;
void *dest_blob = NULL;
struct stat sbuf;
void *ptr;
off_t destfd_size = 0;
/* Flattened Image Tree (FIT) format handling */
debug ("FIT format handling\n");
/* call dtc to include binary properties into the tmp file */
if (strlen (params->imagefile) +
strlen (MKIMAGE_TMPFILE_SUFFIX) + 1 > sizeof (tmpfile)) {
fprintf (stderr, "%s: Image file name (%s) too long, "
"can't create tmpfile",
params->imagefile, params->cmdname);
return (EXIT_FAILURE);
}
sprintf (tmpfile, "%s%s", params->imagefile, MKIMAGE_TMPFILE_SUFFIX);
/* We either compile the source file, or use the existing FIT image */
if (params->datafile) {
/* dtc -I dts -O dtb -p 500 datafile > tmpfile */
snprintf(cmd, sizeof(cmd), "%s %s %s > %s",
MKIMAGE_DTC, params->dtc, params->datafile, tmpfile);
debug("Trying to execute \"%s\"\n", cmd);
} else {
snprintf(cmd, sizeof(cmd), "cp %s %s",
params->imagefile, tmpfile);
}
if (system (cmd) == -1) {
fprintf (stderr, "%s: system(%s) failed: %s\n",
params->cmdname, cmd, strerror(errno));
goto err_system;
}
if (params->keydest) {
destfd = mmap_fdt(params, params->keydest, &dest_blob, &sbuf);
if (destfd < 0)
goto err_keydest;
destfd_size = sbuf.st_size;
}
tfd = mmap_fdt(params, tmpfile, &ptr, &sbuf);
if (tfd < 0)
goto err_mmap;
/* set hashes for images in the blob */
if (fit_add_verification_data(params->keydir,
dest_blob, ptr, params->comment,
params->require_keys)) {
fprintf(stderr, "%s Can't add hashes to FIT blob\n",
params->cmdname);
goto err_add_hashes;
}
/* for first image creation, add a timestamp at offset 0 i.e., root */
if (params->datafile && fit_set_timestamp(ptr, 0, sbuf.st_mtime)) {
fprintf (stderr, "%s: Can't add image timestamp\n",
params->cmdname);
goto err_add_timestamp;
}
debug ("Added timestamp successfully\n");
munmap ((void *)ptr, sbuf.st_size);
close (tfd);
if (dest_blob) {
munmap(dest_blob, destfd_size);
close(destfd);
}
if (rename (tmpfile, params->imagefile) == -1) {
fprintf (stderr, "%s: Can't rename %s to %s: %s\n",
params->cmdname, tmpfile, params->imagefile,
strerror (errno));
unlink (tmpfile);
unlink (params->imagefile);
return (EXIT_FAILURE);
}
return (EXIT_SUCCESS);
err_add_timestamp:
err_add_hashes:
munmap(ptr, sbuf.st_size);
err_mmap:
if (dest_blob)
munmap(dest_blob, destfd_size);
err_keydest:
err_system:
unlink(tmpfile);
return -1;
}
/**
* fit_handle_file - main FIT file processing function
*
* fit_handle_file() runs dtc to convert .its to .itb, includes
* binary data, updates timestamp property and calculates hashes.
*
* datafile - .its file
* imagefile - .itb file
*
* returns:
* only on success, otherwise calls exit (EXIT_FAILURE);
*/
static int fit_handle_file (struct mkimage_params *params)
{
char tmpfile[MKIMAGE_MAX_TMPFILE_LEN];
char cmd[MKIMAGE_MAX_DTC_CMDLINE_LEN];
int tfd;
struct stat sbuf;
void *ptr;
/* Flattened Image Tree (FIT) format handling */
debug ("FIT format handling\n");
/* call dtc to include binary properties into the tmp file */
if (strlen (params->imagefile) +
strlen (MKIMAGE_TMPFILE_SUFFIX) + 1 > sizeof (tmpfile)) {
fprintf (stderr, "%s: Image file name (%s) too long, "
"can't create tmpfile",
params->imagefile, params->cmdname);
return (EXIT_FAILURE);
}
sprintf (tmpfile, "%s%s", params->imagefile, MKIMAGE_TMPFILE_SUFFIX);
/* dtc -I dts -O dtb -p 500 datafile > tmpfile */
sprintf (cmd, "%s %s %s > %s",
MKIMAGE_DTC, params->dtc, params->datafile, tmpfile);
debug ("Trying to execute \"%s\"\n", cmd);
if (system (cmd) == -1) {
fprintf (stderr, "%s: system(%s) failed: %s\n",
params->cmdname, cmd, strerror(errno));
goto err_system;
}
tfd = mmap_fdt(params, tmpfile, &ptr, &sbuf);
if (tfd < 0)
goto err_mmap;
/* set hashes for images in the blob */
if (fit_add_verification_data(ptr)) {
fprintf (stderr, "%s Can't add hashes to FIT blob",
params->cmdname);
goto err_add_hashes;
}
/* add a timestamp at offset 0 i.e., root */
if (fit_set_timestamp (ptr, 0, sbuf.st_mtime)) {
fprintf (stderr, "%s: Can't add image timestamp\n",
params->cmdname);
goto err_add_timestamp;
}
debug ("Added timestamp successfully\n");
munmap ((void *)ptr, sbuf.st_size);
close (tfd);
if (rename (tmpfile, params->imagefile) == -1) {
fprintf (stderr, "%s: Can't rename %s to %s: %s\n",
params->cmdname, tmpfile, params->imagefile,
strerror (errno));
unlink (tmpfile);
unlink (params->imagefile);
return (EXIT_FAILURE);
}
return (EXIT_SUCCESS);
err_add_timestamp:
err_add_hashes:
munmap(ptr, sbuf.st_size);
err_mmap:
err_system:
unlink(tmpfile);
return -1;
}