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fdt: add "fdt checksign" command 

check if a fdt is correct signed
pass an optional addr value. Contains the addr of the key blob

Signed-off-by: Heiko Schocher <hs@denx.de>
Acked-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Heiko Schocher 2014-03-03 12:19:24 +01:00 committed by Tom Rini
parent 66b36f833a
commit 097dd3e0a9
1 changed files with 41 additions and 1 deletions
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42
common/cmd_fdt.c
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@ -570,7 +570,7 @@ static int do_fdt(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
ft_board_setup(working_fdt, gd->bd);
#endif
/* Create a chosen node */
else if (argv[1][0] == 'c') {
else if (strncmp(argv[1], "cho", 3) == 0) {
unsigned long initrd_start = 0, initrd_end = 0;
if ((argc != 2) && (argc != 4))
@ -583,6 +583,41 @@ static int do_fdt(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
fdt_chosen(working_fdt, 1);
fdt_initrd(working_fdt, initrd_start, initrd_end, 1);
#if defined(CONFIG_FIT_SIGNATURE)
} else if (strncmp(argv[1], "che", 3) == 0) {
int cfg_noffset;
int ret;
unsigned long addr;
struct fdt_header *blob;
if (!working_fdt)
return CMD_RET_FAILURE;
if (argc > 2) {
addr = simple_strtoul(argv[2], NULL, 16);
blob = map_sysmem(addr, 0);
} else {
blob = (struct fdt_header *)gd->fdt_blob;
}
if (!fdt_valid(&blob))
return 1;
gd->fdt_blob = blob;
cfg_noffset = fit_conf_get_node(working_fdt, NULL);
if (!cfg_noffset) {
printf("Could not find configuration node: %s\n",
fdt_strerror(cfg_noffset));
return CMD_RET_FAILURE;
}
ret = fit_config_verify(working_fdt, cfg_noffset);
if (ret == 1)
return CMD_RET_SUCCESS;
else
return CMD_RET_FAILURE;
#endif
}
/* resize the fdt */
else if (strncmp(argv[1], "re", 2) == 0) {
@ -992,6 +1027,11 @@ static char fdt_help_text[] =
"fdt rsvmem delete <index> - Delete a mem reserves\n"
"fdt chosen [<start> <end>] - Add/update the /chosen branch in the tree\n"
" <start>/<end> - initrd start/end addr\n"
#if defined(CONFIG_FIT_SIGNATURE)
"fdt checksign [<addr>] - check FIT signature\n"
" <start> - addr of key blob\n"
" default gd->fdt_blob\n"
#endif
"NOTE: Dereference aliases by omiting the leading '/', "
"e.g. fdt print ethernet0.";
#endif