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| author | Andreas Dilger <adilger@dilger.ca> | 2008-03-30 20:05:12 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2008-03-31 14:28:26 -0400 |
| commit | cf96ecf13ff883ccff9e90ac069b866f61d653ba (patch) | |
| tree | 56cceddaa9fcc027c9be3b609a873444c732c554 /debugfs | |
| parent | 02a73f12df0dbc3636e6fe1b952e438737937669 (diff) | |
| download | android_external_e2fsprogs-cf96ecf13ff883ccff9e90ac069b866f61d653ba.tar.gz android_external_e2fsprogs-cf96ecf13ff883ccff9e90ac069b866f61d653ba.tar.bz2 android_external_e2fsprogs-cf96ecf13ff883ccff9e90ac069b866f61d653ba.zip | |
debugfs: Add support for "set_block_group <bg_num> checksum calc"
Signed-off-by: Andreas Dilger <adilger@dilger.ca>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'debugfs')
| -rw-r--r-- | debugfs/set_fields.c | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/debugfs/set_fields.c b/debugfs/set_fields.c index a58c94ef..ee51c459 100644 --- a/debugfs/set_fields.c +++ b/debugfs/set_fields.c @@ -42,6 +42,7 @@ static struct ext2_super_block set_sb; static struct ext2_inode set_inode; static struct ext2_group_desc set_gd; +static dgrp_t set_bg; static ext2_ino_t set_ino; static int array_idx; @@ -63,6 +64,7 @@ static errcode_t parse_uuid(struct field_set_info *info, char *arg); static errcode_t parse_hashalg(struct field_set_info *info, char *arg); static errcode_t parse_time(struct field_set_info *info, char *arg); static errcode_t parse_bmap(struct field_set_info *info, char *arg); +static errcode_t parse_gd_csum(struct field_set_info *info, char *arg); static struct field_set_info super_fields[] = { { "inodes_count", &set_sb.s_inodes_count, 4, parse_uint }, @@ -178,7 +180,7 @@ static struct field_set_info ext2_bg_fields[] = { { "flags", &set_gd.bg_flags, 2, parse_uint }, { "reserved", &set_gd.bg_reserved, 2, parse_uint, FLAG_ARRAY, 2 }, { "itable_unused", &set_gd.bg_itable_unused, 2, parse_uint }, - { "checksum", &set_gd.bg_checksum, 2, parse_uint }, + { "checksum", &set_gd.bg_checksum, 2, parse_gd_csum }, { 0, 0, 0, 0 } }; @@ -402,6 +404,19 @@ static errcode_t parse_bmap(struct field_set_info *info, char *arg) return retval; } +static errcode_t parse_gd_csum(struct field_set_info *info, char *arg) +{ + + if (strcmp(arg, "calc") == 0) { + ext2fs_group_desc_csum_set(current_fs, set_bg); + set_gd = current_fs->group_desc[set_bg]; + printf("Checksum set to 0x%04x\n", + current_fs->group_desc[set_bg].bg_checksum); + return 0; + } + + return parse_uint(info, arg); +} static void print_possible_fields(struct field_set_info *fields) { @@ -521,7 +536,6 @@ void do_set_block_group_descriptor(int argc, char *argv[]) "\t\"set_block_group_descriptor -l\" will list the names of " "the fields in a block group descriptor\n\twhich can be set."; struct field_set_info *ss; - dgrp_t set_bg; char *end; if ((argc == 2) && !strcmp(argv[1], "-l")) { |