/*
* Reads the current bad blocks from the bad blocks inode.
*/
errcode_t ext2fs_read_bb_inode(ext2_filsys fs, ext2_badblocks_list *bb_list)
{
errcode_t retval;
struct read_bb_record rb;
struct ext2_inode inode;
blk_t numblocks;
EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);
if (!*bb_list) {
retval = ext2fs_read_inode(fs, EXT2_BAD_INO, &inode);
if (retval)
return retval;
if (inode.i_blocks < 500)
numblocks = (inode.i_blocks /
(fs->blocksize / 512)) + 20;
else
numblocks = 500;
retval = ext2fs_badblocks_list_create(bb_list, numblocks);
if (retval)
return retval;
}
rb.bb_list = *bb_list;
rb.err = 0;
retval = ext2fs_block_iterate2(fs, EXT2_BAD_INO, 0, 0,
mark_bad_block, &rb);
if (retval)
return retval;
return rb.err;
}
/*
* Reads a list of bad blocks from a FILE *
*/
errcode_t ext2fs_read_bb_FILE2(ext2_filsys fs, FILE *f,
ext2_badblocks_list *bb_list,
void *priv_data,
void (*invalid)(ext2_filsys fs,
blk_t blk,
char *badstr,
void *priv_data))
{
errcode_t retval;
blk_t blockno;
int count;
char buf[128];
if (fs)
EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);
if (!*bb_list) {
retval = ext2fs_badblocks_list_create(bb_list, 10);
if (retval)
return retval;
}
while (!feof (f)) {
if (fgets(buf, sizeof(buf), f) == NULL)
break;
count = sscanf(buf, "%u", &blockno);
if (count <= 0)
continue;
if (fs &&
((blockno < fs->super->s_first_data_block) ||
(blockno >= ext2fs_blocks_count(fs->super)))) {
if (invalid)
(invalid)(fs, blockno, buf, priv_data);
continue;
}
retval = ext2fs_badblocks_list_add(*bb_list, blockno);
if (retval)
return retval;
}
return 0;
}
static errcode_t create_test_list(blk_t *vec, badblocks_list *ret)
{
errcode_t retval;
badblocks_list bb;
int i;
retval = ext2fs_badblocks_list_create(&bb, 5);
if (retval) {
com_err("create_test_list", retval, "while creating list");
return retval;
}
for (i=0; vec[i]; i++) {
retval = ext2fs_badblocks_list_add(bb, vec[i]);
if (retval) {
com_err("create_test_list", retval,
"while adding test vector %d", i);
ext2fs_badblocks_list_free(bb);
return retval;
}
}
*ret = bb;
return 0;
}
/*
* Reads the current bad blocks from the bad blocks inode.
*/
errcode_t ext2fs_read_bb_inode(ext2_filsys fs, ext2_badblocks_list *bb_list)
{
errcode_t retval;
struct read_bb_record rb;
struct ext2_inode inode;
blk_t numblocks;
EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);
if (!*bb_list) {
retval = ext2fs_read_inode(fs, EXT2_BAD_INO, &inode);
if (retval)
return retval;
numblocks = inode.i_blocks;
if (!((fs->super->s_feature_ro_compat &
EXT4_FEATURE_RO_COMPAT_HUGE_FILE) &&
(inode.i_flags & EXT4_HUGE_FILE_FL)))
numblocks = numblocks / (fs->blocksize / 512);
numblocks += 20;
if (numblocks < 50)
numblocks = 50;
if (numblocks > 50000)
numblocks = 500;
retval = ext2fs_badblocks_list_create(bb_list, numblocks);
if (retval)
return retval;
}
rb.bb_list = *bb_list;
rb.err = 0;
retval = ext2fs_block_iterate2(fs, EXT2_BAD_INO, BLOCK_FLAG_READ_ONLY,
0, mark_bad_block, &rb);
if (retval)
return retval;
return rb.err;
}
errcode_t badblocks_list_create(badblocks_list *ret, int size)
{
return ext2fs_badblocks_list_create(ret, size);
}
/*
* Setup the variables for doing the inode scan test.
*/
static void setup(void)
{
errcode_t retval;
int i;
struct ext2_super_block param;
initialize_ext2_error_table();
memset(¶m, 0, sizeof(param));
param.s_blocks_count = 12000;
test_io_cb_read_blk = test_read_blk;
retval = ext2fs_initialize("test fs", 0, ¶m,
test_io_manager, &test_fs);
if (retval) {
com_err("setup", retval,
"While initializing filesystem");
exit(1);
}
retval = ext2fs_allocate_tables(test_fs);
if (retval) {
com_err("setup", retval,
"While allocating tables for test filesystem");
exit(1);
}
retval = ext2fs_allocate_block_bitmap(test_fs, "bad block map",
&bad_block_map);
if (retval) {
com_err("setup", retval,
"While allocating bad_block bitmap");
exit(1);
}
retval = ext2fs_allocate_block_bitmap(test_fs, "touched map",
&touched_map);
if (retval) {
com_err("setup", retval,
"While allocating touched block bitmap");
exit(1);
}
retval = ext2fs_allocate_inode_bitmap(test_fs, "bad inode map",
&bad_inode_map);
if (retval) {
com_err("setup", retval,
"While allocating bad inode bitmap");
exit(1);
}
retval = ext2fs_badblocks_list_create(&test_badblocks, 5);
if (retval) {
com_err("setup", retval, "while creating badblocks list");
exit(1);
}
for (i=0; test_vec[i]; i++) {
retval = ext2fs_badblocks_list_add(test_badblocks, test_vec[i]);
if (retval) {
com_err("setup", retval,
"while adding test vector %d", i);
exit(1);
}
ext2fs_mark_block_bitmap(bad_block_map, test_vec[i]);
}
test_fs->badblocks = test_badblocks;
}