static errcode_t create_orphan_file(ocfs2_filesys *fs, uint16_t slot)
{
errcode_t ret;
uint64_t dir, tmp_blkno;
char name[OCFS2_MAX_FILENAME_LEN];
int namelen;
ret = ocfs2_lookup_system_inode(fs, ORPHAN_DIR_SYSTEM_INODE,
slot, &dir);
if (ret)
return ret;
namelen = sprintf(name, "test%ld", random());
ret = ocfs2_lookup(fs, dir, name, namelen, NULL, &tmp_blkno);
if (!ret)
return 0;
else if (ret != OCFS2_ET_FILE_NOT_FOUND)
return ret;
ret = ocfs2_new_inode(fs, &tmp_blkno, S_IFREG | 0755);
if (ret)
return ret;
ret = ocfs2_link(fs, dir, name,
tmp_blkno, OCFS2_FT_REG_FILE);
if (ret)
return ret;
return 0;
}
static void create_named_directory(ocfs2_filesys *fs, char *dirname,
uint64_t *blkno)
{
errcode_t ret;
struct ocfs2_super_block *sb = OCFS2_RAW_SB(fs->fs_super);
ret = ocfs2_lookup(fs, sb->s_root_blkno, dirname, strlen(dirname), NULL,
blkno);
if (!ret)
return;
else if (ret != OCFS2_ET_FILE_NOT_FOUND)
FSWRK_COM_FATAL(progname, ret);
ret = ocfs2_new_inode(fs, blkno, S_IFDIR | 0755);
if (ret)
FSWRK_COM_FATAL(progname, ret);
ret = ocfs2_init_dir(fs, *blkno, fs->fs_root_blkno);
if (ret)
FSWRK_COM_FATAL(progname, ret);
ret = ocfs2_link(fs, fs->fs_root_blkno, dirname, *blkno, OCFS2_FT_DIR);
if (ret)
FSWRK_COM_FATAL(progname, ret);
return;
}
static errcode_t create_system_file(ocfs2_filesys *fs, int type, int node)
{
char fname[OCFS2_MAX_FILENAME_LEN];
uint64_t blkno;
errcode_t ret;
ocfs2_sprintf_system_inode_name(fname, sizeof(fname),
type, node);
ret = ocfs2_lookup(fs, fs->fs_sysdir_blkno, fname, strlen(fname), NULL,
&blkno);
if (!ret) {
verbosef(VL_APP, "System file \"%s\" already exists!\n",
fname);
return 0;
}
ret = ocfs2_new_system_inode(fs, &blkno,
ocfs2_system_inodes[type].si_mode,
ocfs2_system_inodes[type].si_iflags);
if (ret) {
tcom_err(ret, "while creating system file \"%s\"", fname);
return ret;
}
ret = ocfs2_link(fs, fs->fs_sysdir_blkno, fname, blkno,
OCFS2_FT_REG_FILE);
if (ret) {
tcom_err(ret, "while linking file \"%s\" in the system "
"directory", fname);
return ret;
}
return 0;
}
static void fix_dot_dot(o2fsck_state *ost, o2fsck_dir_parent *dir)
{
errcode_t ret;
struct fix_dot_dot_args args = {
.ost = ost,
.parent = dir->dp_dirent,
.fixed = 0,
};
ret = ocfs2_dir_iterate(ost->ost_fs, dir->dp_ino,
OCFS2_DIRENT_FLAG_INCLUDE_EMPTY, NULL,
fix_dot_dot_dirent, &args);
if (ret) {
com_err("fix_dot_dot", ret, "while iterating through dir "
"inode %"PRIu64"'s directory entries.", dir->dp_dirent);
/* XXX mark fs invalid */
return;
}
if (!args.fixed) {
fprintf(stderr, "Didn't find a '..' entry to fix.\n");
/* XXX mark fs invalid */
return;
}
dir->dp_dot_dot = dir->dp_dirent;
}
/* add a directory entry that points to a given inode in lost+found. */
void o2fsck_reconnect_file(o2fsck_state *ost, uint64_t inode)
{
static char iname[NAME_MAX + 1];
char name[] = "lost+found";
int namelen = sizeof(name) - 1;
o2fsck_dir_parent *dp;
errcode_t ret;
uint8_t type;
int len;
if (ost->ost_lostfound_ino == 0) {
ret = ocfs2_lookup(ost->ost_fs, ost->ost_fs->fs_root_blkno,
name, namelen, NULL,
&ost->ost_lostfound_ino);
if (ret) {
com_err(whoami, ret, "while trying to find the "
"/lost+found directory so that inode "
"%"PRIu64" could be moved there.", inode);
goto out;
}
}
len = snprintf(iname, sizeof(iname), "#%"PRIu64, inode);
if (len <= 0) {
ret = OCFS2_ET_NO_MEMORY;
com_err(whoami, ret, "while trying to build a new file name "
"for inode %"PRIu64" to use in /lost+found", inode);
goto out;
}
ret = o2fsck_type_from_dinode(ost, inode, &type);
if (ret)
goto out;
ret = ocfs2_link(ost->ost_fs, ost->ost_lostfound_ino, iname, inode,
type);
if (ret) {
com_err(whoami, ret, "while trying to link inode %"PRIu64" "
"into /lost+found", inode);
goto out;
}
/* add another ref to account for this new dirent */
o2fsck_icount_delta(ost->ost_icount_refs, inode, 1);
/* if we just added a directory to l+f we need to track that
* the new dirent points to the dir. we leave the dot_dot tracking
* intact because we didn't change that in the dirblock.. */
if (type == OCFS2_FT_DIR) {
dp = o2fsck_dir_parent_lookup(&ost->ost_dir_parents, inode);
if (dp == NULL) {
ret = OCFS2_ET_INTERNAL_FAILURE;
com_err(whoami, ret, "while looking up the directory "
"parent structure for inode %"PRIu64, inode);
goto out;
}
dp->dp_dirent = ost->ost_lostfound_ino;
}
out:
return;
}
static uint64_t loop_no = 0;
static errcode_t connect_directory(o2fsck_state *ost,
o2fsck_dir_parent *dir)
{
o2fsck_dir_parent *dp = dir, *par;
errcode_t ret = 0;
int fix;
verbosef("checking dir inode %"PRIu64" parent %"PRIu64" dot_dot "
"%"PRIu64"\n", dir->dp_ino, dp->dp_dirent, dp->dp_dot_dot);
loop_no++;
while(!dp->dp_connected) {
/* we either will ascend to a parent that is connected or
* we'll graft the subtree with this directory on to lost
* and found. */
dp->dp_connected = 1;
/* move on to the parent dir only if it exists and we haven't
* already traversed it in this instance of parent walking */
if (dp->dp_dirent) {
par = o2fsck_dir_parent_lookup(&ost->ost_dir_parents,
dp->dp_dirent);
if (par == NULL) {
ret = OCFS2_ET_INTERNAL_FAILURE;
com_err(whoami, ret, "no dir info for parent "
"%"PRIu64, dp->dp_dirent);
goto out;
}
if (par->dp_loop_no != loop_no) {
par->dp_loop_no = loop_no;
dp = par;
continue;
}
}
/* ok, we hit an orphan subtree with no parent or are at
* the dir in a subtree that is the first to try to reference
* a dir in its children */
fix = prompt(ost, PY, PR_DIR_NOT_CONNECTED,
"Directory inode %"PRIu64" isn't "
"connected to the filesystem. Move it to "
"lost+found?", dp->dp_ino);
if (fix)
o2fsck_reconnect_file(ost, dp->dp_ino);
break;
}
/*
* orphan dirs are a magically awesome special case. they have
* their i_link_count increased when subdirs are added but
* the subdirs '..' entry isn't updated to point to the orphan
* dir. we alter our book-keeping to it look like the '..'
* was reasonable on disk.
*/
if (dir->dp_in_orphan_dir) {
/* previous '..' entry is garbage */
if (dir->dp_dot_dot)
o2fsck_icount_delta(ost->ost_icount_refs,
dir->dp_dot_dot, -1);
/* pretend '..' pointed to the orphan dir */
dir->dp_dot_dot = dir->dp_dirent;
o2fsck_icount_delta(ost->ost_icount_refs, dir->dp_dot_dot, 1);
}
if (dir->dp_dirent != dir->dp_dot_dot) {
fix = prompt(ost, PY, PR_DIR_DOTDOT,
"Directory inode %"PRIu64" is "
"referenced by a dirent in directory %"PRIu64" "
"but its '..' entry points to inode %"PRIu64". "
"Fix the '..' entry to reference %"PRIu64"?",
dir->dp_ino, dir->dp_dirent, dir->dp_dot_dot,
dir->dp_dirent);
if (fix)
fix_dot_dot(ost, dir);
}
out:
return ret;
}
static void check_lostfound(o2fsck_state *ost)
{
char name[] = "lost+found";
int namelen = sizeof(name) - 1;
uint64_t blkno;
errcode_t ret;
ret = ocfs2_lookup(ost->ost_fs, ost->ost_fs->fs_root_blkno, name,
namelen, NULL, &ost->ost_lostfound_ino);
if (ret == 0)
return;
if (!prompt(ost, PY, PR_LOSTFOUND_MISSING,
"/lost+found does not exist. Create it so "
"that we can possibly fill it with orphaned inodes?"))
return;
ret = ocfs2_new_inode(ost->ost_fs, &blkno, 0755 | S_IFDIR);
if (ret) {
com_err(whoami, ret, "while trying to allocate a new inode "
"for /lost+found");
return;
}
ret = ocfs2_init_dir(ost->ost_fs, blkno, ost->ost_fs->fs_root_blkno);
if (ret) {
com_err(whoami, ret, "while trying to expand a new "
"/lost+found directory");
goto out;
}
ret = ocfs2_link(ost->ost_fs, ost->ost_fs->fs_root_blkno, name, blkno,
OCFS2_FT_DIR);
if (ret) {
com_err(whoami, ret, "while linking inode %"PRIu64" as "
"/lost+found", blkno);
goto out;
}
/* XXX maybe this should be a helper to clean up the dir tracking
* for any new dir. "2" for both the l+f dirent pointing to the
* inode and the "." dirent in its dirblock */
o2fsck_icount_set(ost->ost_icount_in_inodes, blkno, 2);
o2fsck_icount_set(ost->ost_icount_refs, blkno, 2);
ret = o2fsck_add_dir_parent(&ost->ost_dir_parents, blkno,
ost->ost_fs->fs_root_blkno,
ost->ost_fs->fs_root_blkno, 0);
if (ret) {
com_err(whoami, ret, "while recording a new /lost+found "
"directory");
goto out;
}
/* we've already iterated through the dirblocks in pass2 so there
* is no need to register l+f's new dir block */
ost->ost_lostfound_ino = blkno;
blkno = 0;
out:
if (blkno) {
ret = ocfs2_delete_inode(ost->ost_fs, blkno);
if (ret) {
com_err(whoami, ret, "while trying to clean up an "
"an allocated inode after linking /lost+found "
"failed");
}
}
}
static errcode_t add_slots(ocfs2_filesys *fs, int num_slots)
{
errcode_t ret;
uint16_t old_num = OCFS2_RAW_SB(fs->fs_super)->s_max_slots;
char fname[OCFS2_MAX_FILENAME_LEN];
uint64_t blkno;
int i, j, max_slots;
int ftype;
struct tools_progress *prog = NULL;
if (ocfs2_uses_extended_slot_map(OCFS2_RAW_SB(fs->fs_super))) {
ret = TUNEFS_ET_TOO_MANY_SLOTS_EXTENDED;
max_slots = INT16_MAX;
} else {
ret = TUNEFS_ET_TOO_MANY_SLOTS_OLD;
max_slots = OCFS2_MAX_SLOTS;
}
if (num_slots > max_slots)
goto bail;
prog = tools_progress_start("Adding slots", "addslots",
(NUM_SYSTEM_INODES -
OCFS2_LAST_GLOBAL_SYSTEM_INODE - 1) *
(num_slots - old_num));
if (!prog) {
ret = TUNEFS_ET_NO_MEMORY;
goto bail;
}
ret = 0;
for (i = OCFS2_LAST_GLOBAL_SYSTEM_INODE + 1; i < NUM_SYSTEM_INODES; ++i) {
for (j = old_num; j < num_slots; ++j) {
ocfs2_sprintf_system_inode_name(fname,
OCFS2_MAX_FILENAME_LEN,
i, j);
verbosef(VL_APP, "Creating system file \"%s\"\n",
fname);
/* Goto next if file already exists */
ret = ocfs2_lookup(fs, fs->fs_sysdir_blkno, fname,
strlen(fname), NULL, &blkno);
if (!ret) {
verbosef(VL_APP,
"System file \"%s\" already exists\n",
fname);
tools_progress_step(prog, 1);
continue;
}
/* create inode for system file */
ret = ocfs2_new_system_inode(fs, &blkno,
ocfs2_system_inodes[i].si_mode,
ocfs2_system_inodes[i].si_iflags);
if (ret) {
verbosef(VL_APP,
"%s while creating inode for "
"system file \"%s\"\n",
error_message(ret), fname);
goto bail;
}
ftype = (S_ISDIR(ocfs2_system_inodes[i].si_mode) ?
OCFS2_FT_DIR : OCFS2_FT_REG_FILE);
/* if dir, alloc space to it */
if (ftype == OCFS2_FT_DIR) {
ret = ocfs2_init_dir(fs, blkno,
fs->fs_sysdir_blkno);
if (ret) {
verbosef(VL_APP,
"%s while initializing "
"directory \"%s\"\n",
error_message(ret),
fname);
goto bail;
}
}
/* Add the inode to the system dir */
ret = ocfs2_link(fs, fs->fs_sysdir_blkno, fname,
blkno, ftype);
if (ret) {
verbosef(VL_APP,
"%s while linking inode %"PRIu64" "
"as \"%s\" in the system "
"directory\n",
error_message(ret), blkno, fname);
goto bail;
}
verbosef(VL_APP, "System file \"%s\" created\n",
fname);
tools_progress_step(prog, 1);
}
}
bail:
if (prog)
tools_progress_stop(prog);
return ret;
}
