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| author | Patrick Georgi <pgeorgi@chromium.org> | 2016-10-12 16:46:13 +0200 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2016-10-17 15:09:00 +0200 |
| commit | 01fbc3a1dd6fe11b17e5632d20e9d9605a697852 (patch) | |
| tree | ca1303d4e146e532245681edad761ce6d223d247 /util/cbfstool | |
| parent | a52f883b100f3229dd4d86c81c08781993861f73 (diff) | |
| download | coreboot-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.c | 14 |
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)) { |