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authorPatrick Georgi <pgeorgi@chromium.org>2016-10-12 16:46:13 +0200
committerPatrick Georgi <pgeorgi@google.com>2016-10-17 15:09:00 +0200
commit01fbc3a1dd6fe11b17e5632d20e9d9605a697852 (patch)
treeca1303d4e146e532245681edad761ce6d223d247 /util/cbfstool
parenta52f883b100f3229dd4d86c81c08781993861f73 (diff)
downloadcoreboot-01fbc3a1dd6fe11b17e5632d20e9d9605a697852.tar.xz
util/cbfstool: Allow overwriting CBFS regions with raw data on request
Add a --force/-F option and enable it for cbfstool write, where it has the effect of not testing if the fmap region contains a CBFS or if the data to write is a CBFS image. Change-Id: I02f72841a20db3d86d1b67ccf371bd40bb9a4d51 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Reviewed-on: https://review.coreboot.org/16998 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Martin Roth <martinroth@google.com>
Diffstat (limited to 'util/cbfstool')
-rw-r--r--util/cbfstool/cbfstool.c14
1 files changed, 10 insertions, 4 deletions
diff --git a/util/cbfstool/cbfstool.c b/util/cbfstool/cbfstool.c
index e70cb4b0b8..6553c4234c 100644
--- a/util/cbfstool/cbfstool.c
+++ b/util/cbfstool/cbfstool.c
@@ -82,6 +82,7 @@ static struct param {
/* for linux payloads */
char *initrd;
char *cmdline;
+ int force;
} param = {
/* All variables not listed are initialized as zero. */
.arch = CBFS_ARCHITECTURE_UNKNOWN,
@@ -935,7 +936,7 @@ static int cbfs_write(void)
return 1;
}
- if (region_is_modern_cbfs(param.region_name)) {
+ if (!param.force && region_is_modern_cbfs(param.region_name)) {
ERROR("Target image region '%s' is a CBFS and must be manipulated using add and remove\n",
param.region_name);
return 1;
@@ -952,7 +953,7 @@ static int cbfs_write(void)
buffer_delete(&new_content);
return 1;
}
- if (buffer_check_magic(&new_content, CBFS_FILE_MAGIC,
+ if (!param.force && buffer_check_magic(&new_content, CBFS_FILE_MAGIC,
strlen(CBFS_FILE_MAGIC))) {
ERROR("File '%s' appears to be a CBFS and cannot be inserted into a raw region\n",
param.filename);
@@ -1088,7 +1089,7 @@ static const struct command commands[] = {
{"read", "r:f:vh?", cbfs_read, true, false},
{"remove", "H:r:n:vh?", cbfs_remove, true, true},
{"update-fit", "H:r:n:x:vh?", cbfs_update_fit, true, true},
- {"write", "r:f:udvh?", cbfs_write, true, true},
+ {"write", "r:f:Fudvh?", cbfs_write, true, true},
};
static struct option long_options[] = {
@@ -1104,6 +1105,7 @@ static struct option long_options[] = {
{"fill-upward", no_argument, 0, 'u' },
{"flashmap", required_argument, 0, 'M' },
{"fmap-regions", required_argument, 0, 'r' },
+ {"force", no_argument, 0, 'F' },
{"source-region", required_argument, 0, 'R' },
{"hash-algorithm",required_argument, 0, 'A' },
{"header-offset", required_argument, 0, 'H' },
@@ -1188,6 +1190,7 @@ static void usage(char *name)
" -T Output top-aligned memory address\n"
" -u Accept short data; fill upward/from bottom\n"
" -d Accept short data; fill downward/from top\n"
+ " -F Force action\n"
" -g Generate potition and alignment arguments\n"
" -v Provide verbose output\n"
" -h Display this help message\n\n"
@@ -1232,7 +1235,7 @@ static void usage(char *name)
"Show the contents of the ROM\n"
" extract [-r image,regions] [-m ARCH] -n NAME -f FILE "
"Extracts a raw payload from ROM\n"
- " write -r image,regions -f file [-u | -d] "
+ " write [-F] -r image,regions -f file [-u | -d] "
"Write file into same-size [or larger] raw region\n"
" read [-r fmap-region] -f file "
"Extract raw region contents into binary file\n"
@@ -1444,6 +1447,9 @@ int main(int argc, char **argv)
case 'f':
param.filename = optarg;
break;
+ case 'F':
+ param.force = 1;
+ break;
case 'i':
param.u64val = strtoull(optarg, &suffix, 0);
if (!*optarg || (suffix && *suffix)) {