/*
* pass3.c -- pass #3 of e2fsck: Check for directory connectivity
*
- * Copyright (C) 1993 Theodore Ts'o. This file may be redistributed
- * under the terms of the GNU Public License.
- *
+ * Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999 Theodore Ts'o.
+ *
+ * %Begin-Header%
+ * This file may be redistributed under the terms of the GNU Public
+ * License.
+ * %End-Header%
+ *
* Pass #3 assures that all directories are connected to the
* filesystem tree, using the following algorithm:
*
* First, the root directory is checked to make sure it exists; if
* not, e2fsck will offer to create a new one. It is then marked as
* "done".
- *
- * Then, pass3 interates over all directory inodes; for each directory
+ *
+ * Then, pass3 iterates over all directory inodes; for each directory
* it attempts to trace up the filesystem tree, using dirinfo.parent
* until it reaches a directory which has been marked "done". If it
* can not do so, then the directory must be disconnected, and e2fsck
* will offer to reconnect it to /lost+found. While it is chasing
* parent pointers up the filesystem tree, if pass3 sees a directory
* twice, then it has detected a filesystem loop, and it will again
- * offer to reconnect the directory to /lost+found in to break the
+ * offer to reconnect the directory to /lost+found in order to break the
* filesystem loop.
- *
- * Pass 3 also contains the subroutine, reconnect_file() to reconnect
- * inodes to /lost+found; this subroutine is also used by pass 4.
- * reconnect_file() calls get_lost_and_found(), which is responsible
- * for creating /lost+found if it does not exist.
+ *
+ * Pass 3 also contains the subroutine, e2fsck_reconnect_file() to
+ * reconnect inodes to /lost+found; this subroutine is also used by
+ * pass 4. e2fsck_reconnect_file() calls get_lost_and_found(), which
+ * is responsible for creating /lost+found if it does not exist.
*
* Pass 3 frees the following data structures:
* - The dirinfo directory information cache.
*/
+#include "config.h"
#ifdef HAVE_ERRNO_H
#include <errno.h>
#endif
-#include "et/com_err.h"
#include "e2fsck.h"
+#include "problem.h"
-static void check_root(ext2_filsys fs, ino_t root_ino);
-static void check_directory(ext2_filsys fs, ino_t dir);
-static ino_t get_lost_and_found(ext2_filsys fs);
-static void fix_dotdot(ext2_filsys fs, struct dir_info *dir, ino_t parent);
-static errcode_t adjust_inode_count(ext2_filsys fs, ino_t ino, int adj);
-static errcode_t expand_directory(ext2_filsys fs, ino_t dir);
+static void check_root(e2fsck_t ctx);
+static int check_directory(e2fsck_t ctx, ext2_ino_t ino,
+ struct problem_context *pctx);
+static void fix_dotdot(e2fsck_t ctx, ext2_ino_t ino, ext2_ino_t parent);
-static ino_t lost_and_found = 0;
-static int bad_lost_and_found = 0;
+static ext2fs_inode_bitmap inode_loop_detect = 0;
+static ext2fs_inode_bitmap inode_done_map = 0;
-static ext2fs_inode_bitmap inode_loop_detect;
-static ext2fs_inode_bitmap inode_done_map;
-
-void pass3(ext2_filsys fs)
+void e2fsck_pass3(e2fsck_t ctx)
{
- int i;
- errcode_t retval;
+ ext2_filsys fs = ctx->fs;
+ struct dir_info_iter *iter = NULL;
+#ifdef RESOURCE_TRACK
struct resource_track rtrack;
-
- init_resource_track(&rtrack);
+#endif
+ struct problem_context pctx;
+ struct dir_info *dir;
+ unsigned long maxdirs, count;
+
+ init_resource_track(&rtrack, ctx->fs->io);
+ clear_problem_context(&pctx);
#ifdef MTRACE
mtrace_print("Pass 3");
#endif
- if (!preen)
- printf("Pass 3: Checking directory connectivity\n");
+ if (!(ctx->options & E2F_OPT_PREEN))
+ fix_problem(ctx, PR_3_PASS_HEADER, &pctx);
/*
* Allocate some bitmaps to do loop detection.
*/
- retval = ext2fs_allocate_inode_bitmap(fs,
- "inode loop detection bitmap",
- &inode_loop_detect);
- if (retval) {
- com_err("ext2fs_allocate_inode_bitmap", retval,
- "while allocating inode_loop_detect");
- fatal_error(0);
- }
- retval = ext2fs_allocate_inode_bitmap(fs, "inode done bitmap",
- &inode_done_map);
- if (retval) {
- com_err("ext2fs_allocate_inode_bitmap", retval,
- "while allocating inode_done_map");
- fatal_error(0);
+ pctx.errcode = e2fsck_allocate_inode_bitmap(fs, _("inode done bitmap"),
+ EXT2FS_BMAP64_AUTODIR,
+ "inode_done_map", &inode_done_map);
+ if (pctx.errcode) {
+ pctx.num = 2;
+ fix_problem(ctx, PR_3_ALLOCATE_IBITMAP_ERROR, &pctx);
+ ctx->flags |= E2F_FLAG_ABORT;
+ goto abort_exit;
}
- if (tflag) {
- printf("Peak memory: ");
- print_resource_track(&global_rtrack);
+ print_resource_track(ctx, _("Peak memory"), &ctx->global_rtrack, NULL);
+
+ check_root(ctx);
+ if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
+ goto abort_exit;
+
+ ext2fs_mark_inode_bitmap2(inode_done_map, EXT2_ROOT_INO);
+
+ maxdirs = e2fsck_get_num_dirinfo(ctx);
+ count = 1;
+
+ if (ctx->progress)
+ if ((ctx->progress)(ctx, 3, 0, maxdirs))
+ goto abort_exit;
+
+ iter = e2fsck_dir_info_iter_begin(ctx);
+ while ((dir = e2fsck_dir_info_iter(ctx, iter)) != 0) {
+ if (ctx->flags & E2F_FLAG_SIGNAL_MASK ||
+ ctx->flags & E2F_FLAG_RESTART)
+ goto abort_exit;
+ if (ctx->progress && (ctx->progress)(ctx, 3, count++, maxdirs))
+ goto abort_exit;
+ if (ext2fs_test_inode_bitmap2(ctx->inode_dir_map, dir->ino))
+ if (check_directory(ctx, dir->ino, &pctx))
+ goto abort_exit;
}
- check_root(fs, EXT2_ROOT_INO);
- ext2fs_mark_inode_bitmap(inode_done_map, EXT2_ROOT_INO);
+ /*
+ * Force the creation of /lost+found if not present
+ */
+ if ((ctx->options & E2F_OPT_READONLY) == 0)
+ e2fsck_get_lost_and_found(ctx, 1);
- for (i=1; i <= fs->super->s_inodes_count; i++) {
- if (ext2fs_test_inode_bitmap(inode_dir_map, i))
- check_directory(fs, i);
+ /*
+ * If there are any directories that need to be indexed or
+ * optimized, do it here.
+ */
+ e2fsck_rehash_directories(ctx);
+
+abort_exit:
+ if (iter)
+ e2fsck_dir_info_iter_end(ctx, iter);
+ e2fsck_free_dir_info(ctx);
+ if (inode_loop_detect) {
+ ext2fs_free_inode_bitmap(inode_loop_detect);
+ inode_loop_detect = 0;
+ }
+ if (inode_done_map) {
+ ext2fs_free_inode_bitmap(inode_done_map);
+ inode_done_map = 0;
}
-
- free_dir_info(fs);
- ext2fs_free_inode_bitmap(inode_loop_detect);
- ext2fs_free_inode_bitmap(inode_done_map);
- if (tflag > 1) {
- printf("Pass 3: ");
- print_resource_track(&rtrack);
+
+ if (ctx->lnf_repair_block) {
+ ext2fs_unmark_block_bitmap2(ctx->block_found_map,
+ ctx->lnf_repair_block);
+ ctx->lnf_repair_block = 0;
}
+ if (ctx->root_repair_block) {
+ ext2fs_unmark_block_bitmap2(ctx->block_found_map,
+ ctx->root_repair_block);
+ ctx->root_repair_block = 0;
+ }
+
+ print_resource_track(ctx, _("Pass 3"), &rtrack, ctx->fs->io);
}
/*
* This makes sure the root inode is present; if not, we ask if the
* user wants us to create it. Not creating it is a fatal error.
*/
-void check_root(ext2_filsys fs, ino_t root_ino)
+static void check_root(e2fsck_t ctx)
{
- blk_t blk;
- errcode_t retval;
- struct ext2_inode inode;
+ ext2_filsys fs = ctx->fs;
+ blk64_t blk;
+ struct ext2_inode_large inode;
+ struct ext2_inode *iptr = (struct ext2_inode *) &inode;
char * block;
- struct dir_info *dir;
-
- if (ext2fs_test_inode_bitmap(inode_used_map, root_ino)) {
+ struct problem_context pctx;
+
+ clear_problem_context(&pctx);
+
+ if (ext2fs_test_inode_bitmap2(ctx->inode_used_map, EXT2_ROOT_INO)) {
/*
- * If the root inode is a directory, die here. The
+ * If the root inode is not a directory, die here. The
* user must have answered 'no' in pass1 when we
* offered to clear it.
*/
- if (!(ext2fs_test_inode_bitmap(inode_dir_map, root_ino)))
- fatal_error("Root inode not directory");
-
- /*
- * Set up the parent pointer for the root; this isn't
- * done anywhere else, so we do it here.
- */
- dir = get_dir_info(root_ino);
- dir->parent = root_ino;
-
+ if (!(ext2fs_test_inode_bitmap2(ctx->inode_dir_map,
+ EXT2_ROOT_INO))) {
+ fix_problem(ctx, PR_3_ROOT_NOT_DIR_ABORT, &pctx);
+ ctx->flags |= E2F_FLAG_ABORT;
+ }
return;
}
- printf("Root inode not allocated. ");
- preenhalt(fs);
- if (!ask("Reallocate", 1)) {
- ext2fs_unmark_valid(fs);
- fatal_error("Cannot proceed without a root inode.");
+ if (!fix_problem(ctx, PR_3_NO_ROOT_INODE, &pctx)) {
+ fix_problem(ctx, PR_3_NO_ROOT_INODE_ABORT, &pctx);
+ ctx->flags |= E2F_FLAG_ABORT;
+ return;
}
- read_bitmaps(fs);
-
- /*
- * First, find a free block
- */
- retval = ext2fs_new_block(fs, 0, block_found_map, &blk);
- if (retval) {
- com_err("ext2fs_new_block", retval,
- "while trying to create root directory");
- fatal_error(0);
- }
- ext2fs_mark_block_bitmap(block_found_map, blk);
- ext2fs_mark_block_bitmap(fs->block_map, blk);
- ext2fs_mark_bb_dirty(fs);
+ e2fsck_read_bitmaps(ctx);
/*
- * Now let's create the actual data block for the inode
+ * First, find a free block
*/
- retval = ext2fs_new_dir_block(fs, EXT2_ROOT_INO, EXT2_ROOT_INO,
- &block);
- if (retval) {
- com_err("ext2fs_new_dir_block", retval,
- "while creating new root directory");
- fatal_error(0);
+ if (ctx->root_repair_block) {
+ blk = ctx->root_repair_block;
+ ctx->root_repair_block = 0;
+ goto skip_new_block;
}
-
- retval = ext2fs_write_dir_block(fs, blk, block);
- if (retval) {
- com_err("ext2fs_write_dir_block", retval,
- "while writing the root directory block");
- fatal_error(0);
+ pctx.errcode = ext2fs_new_block2(fs, 0, ctx->block_found_map, &blk);
+ if (pctx.errcode) {
+ pctx.str = "ext2fs_new_block";
+ fix_problem(ctx, PR_3_CREATE_ROOT_ERROR, &pctx);
+ ctx->flags |= E2F_FLAG_ABORT;
+ return;
}
- free(block);
+ ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
+skip_new_block:
+ ext2fs_mark_block_bitmap2(fs->block_map, blk);
+ ext2fs_mark_bb_dirty(fs);
/*
* Set up the inode structure
memset(&inode, 0, sizeof(inode));
inode.i_mode = 040755;
inode.i_size = fs->blocksize;
- inode.i_atime = inode.i_ctime = inode.i_mtime = time(0);
+ inode.i_atime = inode.i_ctime = inode.i_mtime = ctx->now;
inode.i_links_count = 2;
- inode.i_blocks = fs->blocksize / 512;
+ ext2fs_iblk_set(fs, iptr, 1);
inode.i_block[0] = blk;
+ inode.i_extra_isize = sizeof(struct ext2_inode_large) -
+ EXT2_GOOD_OLD_INODE_SIZE;
/*
* Write out the inode.
*/
- retval = ext2fs_write_inode(fs, EXT2_ROOT_INO, &inode);
- if (retval) {
- com_err("ext2fs_write_inode", retval,
- "While trying to create /lost+found");
- fatal_error(0);
+ pctx.errcode = ext2fs_write_new_inode(fs, EXT2_ROOT_INO, iptr);
+ if (pctx.errcode) {
+ pctx.str = "ext2fs_write_inode";
+ fix_problem(ctx, PR_3_CREATE_ROOT_ERROR, &pctx);
+ ctx->flags |= E2F_FLAG_ABORT;
+ return;
}
-
+
+ /*
+ * Now let's create the actual data block for the inode.
+ * Due to metadata_csum, we must write the dir blocks AFTER
+ * the inode has been written to disk!
+ */
+ pctx.errcode = ext2fs_new_dir_block(fs, EXT2_ROOT_INO, EXT2_ROOT_INO,
+ &block);
+ if (pctx.errcode) {
+ pctx.str = "ext2fs_new_dir_block";
+ fix_problem(ctx, PR_3_CREATE_ROOT_ERROR, &pctx);
+ ctx->flags |= E2F_FLAG_ABORT;
+ return;
+ }
+
+ pctx.errcode = ext2fs_write_dir_block4(fs, blk, block, 0,
+ EXT2_ROOT_INO);
+ ext2fs_free_mem(&block);
+ if (pctx.errcode) {
+ pctx.str = "ext2fs_write_dir_block4";
+ fix_problem(ctx, PR_3_CREATE_ROOT_ERROR, &pctx);
+ ctx->flags |= E2F_FLAG_ABORT;
+ return;
+ }
+
/*
* Miscellaneous bookkeeping...
*/
- add_dir_info(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, &inode);
- inode_count[EXT2_ROOT_INO] = 2;
- inode_link_info[EXT2_ROOT_INO] = 2;
+ e2fsck_add_dir_info(ctx, EXT2_ROOT_INO, EXT2_ROOT_INO);
+ ext2fs_icount_store(ctx->inode_count, EXT2_ROOT_INO, 2);
+ ext2fs_icount_store(ctx->inode_link_info, EXT2_ROOT_INO, 2);
- ext2fs_mark_inode_bitmap(inode_used_map, EXT2_ROOT_INO);
- ext2fs_mark_inode_bitmap(inode_dir_map, EXT2_ROOT_INO);
- ext2fs_mark_inode_bitmap(fs->inode_map, EXT2_ROOT_INO);
+ ext2fs_mark_inode_bitmap2(ctx->inode_used_map, EXT2_ROOT_INO);
+ ext2fs_mark_inode_bitmap2(ctx->inode_dir_map, EXT2_ROOT_INO);
+ ext2fs_mark_inode_bitmap2(fs->inode_map, EXT2_ROOT_INO);
ext2fs_mark_ib_dirty(fs);
+ quota_data_add(ctx->qctx, &inode, EXT2_ROOT_INO,
+ EXT2_CLUSTER_SIZE(fs->super));
+ quota_data_inodes(ctx->qctx, &inode, EXT2_ROOT_INO, +1);
}
/*
* the lost+found. We have to do loop detection; if we ever discover
* a loop, we treat that as a disconnected directory and offer to
* reparent it to lost+found.
+ *
+ * However, loop detection is expensive, because for very large
+ * filesystems, the inode_loop_detect bitmap is huge, and clearing it
+ * is non-trivial. Loops in filesystems are also a rare error case,
+ * and we shouldn't optimize for error cases. So we try two passes of
+ * the algorithm. The first time, we ignore loop detection and merely
+ * increment a counter; if the counter exceeds some extreme threshold,
+ * then we try again with the loop detection bitmap enabled.
*/
-static void check_directory(ext2_filsys fs, ino_t ino)
+static int check_directory(e2fsck_t ctx, ext2_ino_t dir,
+ struct problem_context *pctx)
{
- struct dir_info *dir;
- struct dir_info *p;
- errcode_t retval;
- char *path1, *path2, *path3;
- static char unknown[] = "???";
+ ext2_filsys fs = ctx->fs;
+ ext2_ino_t ino = dir, parent;
+ int loop_pass = 0, parent_count = 0;
- dir = get_dir_info(ino);
- if (!dir) {
- printf("Internal error: couldn't find dir_info for %lu\n",
- ino);
- fatal_error(0);
- }
-
- ext2fs_clear_inode_bitmap(inode_loop_detect);
- p = dir;
- while (p) {
- /*
- * If we find a parent which we've already checked,
- * then stop; we know it's either already connected to
- * the directory tree, or it isn't but the user has
- * already told us he doesn't want us to reconnect the
- * disconnected subtree.
- */
- if (ext2fs_test_inode_bitmap(inode_done_map, p->ino))
- goto check_dot_dot;
+ while (1) {
/*
* Mark this inode as being "done"; by the time we
* return from this function, the inode we either be
* verified as being connected to the directory tree,
* or we will have offered to reconnect this to
* lost+found.
+ *
+ * If it was marked done already, then we've reached a
+ * parent we've already checked.
*/
- ext2fs_mark_inode_bitmap(inode_done_map, p->ino);
+ if (ext2fs_mark_inode_bitmap2(inode_done_map, ino))
+ break;
+
+ if (e2fsck_dir_info_get_parent(ctx, ino, &parent)) {
+ fix_problem(ctx, PR_3_NO_DIRINFO, pctx);
+ return 0;
+ }
+
/*
* If this directory doesn't have a parent, or we've
* seen the parent once already, then offer to
* reparent it to lost+found
*/
- if (!p->parent ||
- (ext2fs_test_inode_bitmap(inode_loop_detect,
- p->parent)))
+ if (!parent ||
+ (loop_pass &&
+ ext2fs_test_inode_bitmap2(inode_loop_detect, parent))) {
+ pctx->ino = ino;
+ if (parent)
+ pctx->dir = parent;
+ else
+ (void) ext2fs_lookup(fs, ino, "..", 2, NULL,
+ &pctx->dir);
+ if (fix_problem(ctx, !parent ? PR_3_UNCONNECTED_DIR :
+ PR_3_LOOPED_DIR, pctx)) {
+ if (e2fsck_reconnect_file(ctx, pctx->ino)) {
+ ext2fs_unmark_valid(fs);
+ } else {
+ fix_dotdot(ctx, pctx->ino,
+ ctx->lost_and_found);
+ parent = ctx->lost_and_found;
+ }
+ }
break;
- ext2fs_mark_inode_bitmap(inode_loop_detect,
- p->parent);
- p = get_dir_info(p->parent);
- }
- /*
- * If we've reached here, we've hit a detached directory
- * inode; offer to reconnect it to lost+found.
- */
- retval = ext2fs_get_pathname(fs, p->ino, 0, &path1);
- if (retval)
- path1 = unknown;
-
- printf("Unconnected directory inode %lu (%s)\n", p->ino, path1);
- if (path1 != unknown)
- free(path1);
- preenhalt(fs);
- if (ask("Connect to /lost+found", 1)) {
- if (reconnect_file(fs, p->ino))
- ext2fs_unmark_valid(fs);
- else {
- p->parent = lost_and_found;
- fix_dotdot(fs, p, lost_and_found);
}
-
- } else
- ext2fs_unmark_valid(fs);
+ ino = parent;
+ if (loop_pass) {
+ ext2fs_mark_inode_bitmap2(inode_loop_detect, ino);
+ } else if (parent_count++ > 2048) {
+ /*
+ * If we've run into a path depth that's
+ * greater than 2048, try again with the inode
+ * loop bitmap turned on and start from the
+ * top.
+ */
+ loop_pass = 1;
+ if (inode_loop_detect)
+ ext2fs_clear_inode_bitmap(inode_loop_detect);
+ else {
+ pctx->errcode = e2fsck_allocate_inode_bitmap(fs, _("inode loop detection bitmap"), EXT2FS_BMAP64_AUTODIR, "inode_loop_detect", &inode_loop_detect);
+ if (pctx->errcode) {
+ pctx->num = 1;
+ fix_problem(ctx,
+ PR_3_ALLOCATE_IBITMAP_ERROR, pctx);
+ ctx->flags |= E2F_FLAG_ABORT;
+ return -1;
+ }
+ }
+ ino = dir;
+ }
+ }
/*
* Make sure that .. and the parent directory are the same;
* offer to fix it if not.
*/
-check_dot_dot:
- if (dir->parent != dir->dotdot) {
- retval = ext2fs_get_pathname(fs, dir->parent, ino,
- &path1);
- if (retval)
- path1 = unknown;
- retval = ext2fs_get_pathname(fs, dir->dotdot, 0, &path2);
- if (retval)
- path2 = unknown;
- retval = ext2fs_get_pathname(fs, dir->parent, 0, &path3);
- if (retval)
- path3 = unknown;
-
- printf("'..' in %s (%lu) is %s (%lu), should be %s (%lu).\n",
- path1, ino, path2, dir->dotdot,
- path3, dir->parent);
- if (path1 != unknown)
- free(path1);
- if (path2 != unknown)
- free(path2);
- if (path3 != unknown)
- free(path3);
- if (ask("Fix", 1))
- fix_dotdot(fs, dir, dir->parent);
- else
- ext2fs_unmark_valid(fs);
- }
-}
+ pctx->ino = dir;
+ if (e2fsck_dir_info_get_dotdot(ctx, dir, &pctx->ino2) ||
+ e2fsck_dir_info_get_parent(ctx, dir, &pctx->dir)) {
+ fix_problem(ctx, PR_3_NO_DIRINFO, pctx);
+ return 0;
+ }
+ if (pctx->ino2 != pctx->dir) {
+ if (fix_problem(ctx, PR_3_BAD_DOT_DOT, pctx))
+ fix_dotdot(ctx, dir, pctx->dir);
+ }
+ return 0;
+}
/*
* This routine gets the lost_and_found inode, making it a directory
* if necessary
*/
-ino_t get_lost_and_found(ext2_filsys fs)
+ext2_ino_t e2fsck_get_lost_and_found(e2fsck_t ctx, int fix)
{
- ino_t ino;
- blk_t blk;
+ ext2_filsys fs = ctx->fs;
+ ext2_ino_t ino;
+ blk64_t blk;
errcode_t retval;
- struct ext2_inode inode;
+ struct ext2_inode_large inode;
char * block;
- const char * name = "lost+found";
-
- retval = ext2fs_lookup(fs, EXT2_ROOT_INO, name, strlen(name), 0, &ino);
- if (!retval)
- return ino;
- if (retval != ENOENT)
- printf("Error while trying to find /lost+found: %s",
- error_message(retval));
- else
- printf("/lost+found not found. ");
- preenhalt(fs);
- if (!ask("Create", 1)) {
- ext2fs_unmark_valid(fs);
+ static const char name[] = "lost+found";
+ struct problem_context pctx;
+ int will_rehash, flags;
+
+ if (ctx->lost_and_found)
+ return ctx->lost_and_found;
+
+ clear_problem_context(&pctx);
+
+ will_rehash = e2fsck_dir_will_be_rehashed(ctx, EXT2_ROOT_INO);
+ if (will_rehash) {
+ flags = ctx->fs->flags;
+ ctx->fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
+ }
+ retval = ext2fs_lookup(fs, EXT2_ROOT_INO, name,
+ sizeof(name)-1, 0, &ino);
+ if (will_rehash)
+ ctx->fs->flags = (flags & EXT2_FLAG_IGNORE_CSUM_ERRORS) |
+ (ctx->fs->flags & ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
+ if (retval && !fix)
return 0;
+ if (!retval) {
+ /* Lost+found shouldn't have inline data */
+ retval = ext2fs_read_inode_full(fs, ino, EXT2_INODE(&inode),
+ sizeof(inode));
+ if (fix && retval)
+ return 0;
+
+ if (fix && (inode.i_flags & EXT4_INLINE_DATA_FL)) {
+ if (!fix_problem(ctx, PR_3_LPF_INLINE_DATA, &pctx))
+ return 0;
+ goto unlink;
+ }
+
+ if (fix && (inode.i_flags & EXT4_ENCRYPT_FL)) {
+ if (!fix_problem(ctx, PR_3_LPF_ENCRYPTED, &pctx))
+ return 0;
+ goto unlink;
+ }
+
+ if (ext2fs_check_directory(fs, ino) == 0) {
+ ctx->lost_and_found = ino;
+ return ino;
+ }
+
+ /* Lost+found isn't a directory! */
+ if (!fix)
+ return 0;
+ pctx.ino = ino;
+ if (!fix_problem(ctx, PR_3_LPF_NOTDIR, &pctx))
+ return 0;
+
+unlink:
+ /* OK, unlink the old /lost+found file. */
+ pctx.errcode = ext2fs_unlink(fs, EXT2_ROOT_INO, name, ino, 0);
+ if (pctx.errcode) {
+ pctx.str = "ext2fs_unlink";
+ fix_problem(ctx, PR_3_CREATE_LPF_ERROR, &pctx);
+ return 0;
+ }
+ (void) e2fsck_dir_info_set_parent(ctx, ino, 0);
+ e2fsck_adjust_inode_count(ctx, ino, -1);
+ /*
+ * If the old lost+found was a directory, we've just
+ * disconnected it from the directory tree, which
+ * means we need to restart the directory tree scan.
+ * The simplest way to do this is restart the whole
+ * e2fsck operation.
+ */
+ if (LINUX_S_ISDIR(inode.i_mode))
+ ctx->flags |= E2F_FLAG_RESTART;
+ } else if (retval != EXT2_ET_FILE_NOT_FOUND) {
+ pctx.errcode = retval;
+ fix_problem(ctx, PR_3_ERR_FIND_LPF, &pctx);
}
+ if (!fix_problem(ctx, PR_3_NO_LF_DIR, 0))
+ return 0;
/*
* Read the inode and block bitmaps in; we'll be messing with
* them.
*/
- read_bitmaps(fs);
-
+ e2fsck_read_bitmaps(ctx);
+
/*
* First, find a free block
*/
- retval = ext2fs_new_block(fs, 0, block_found_map, &blk);
- if (retval) {
- com_err("ext2fs_new_block", retval,
- "while trying to create /lost+found directory");
+ if (ctx->lnf_repair_block) {
+ blk = ctx->lnf_repair_block;
+ ctx->lnf_repair_block = 0;
+ goto skip_new_block;
+ }
+ retval = ext2fs_new_block2(fs, 0, ctx->block_found_map, &blk);
+ if (retval == EXT2_ET_BLOCK_ALLOC_FAIL &&
+ fix_problem(ctx, PR_3_LPF_NO_SPACE, &pctx)) {
+ fix_problem(ctx, PR_3_NO_SPACE_TO_RECOVER, &pctx);
+ ctx->lost_and_found = EXT2_ROOT_INO;
return 0;
}
- ext2fs_mark_block_bitmap(block_found_map, blk);
- ext2fs_mark_block_bitmap(fs->block_map, blk);
- ext2fs_mark_bb_dirty(fs);
-
- /*
- * Next find a free inode.
- */
- retval = ext2fs_new_inode(fs, EXT2_ROOT_INO, 040755, inode_used_map,
- &ino);
if (retval) {
- com_err("ext2fs_new_inode", retval,
- "while trying to create /lost+found directory");
+ pctx.errcode = retval;
+ fix_problem(ctx, PR_3_ERR_LPF_NEW_BLOCK, &pctx);
return 0;
}
- ext2fs_mark_inode_bitmap(inode_used_map, ino);
- ext2fs_mark_inode_bitmap(inode_dir_map, ino);
- ext2fs_mark_inode_bitmap(fs->inode_map, ino);
- ext2fs_mark_ib_dirty(fs);
+ ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
+skip_new_block:
+ ext2fs_block_alloc_stats2(fs, blk, +1);
/*
- * Now let's create the actual data block for the inode
+ * Next find a free inode.
*/
- retval = ext2fs_new_dir_block(fs, ino, EXT2_ROOT_INO, &block);
- if (retval) {
- com_err("ext2fs_new_dir_block", retval,
- "while creating new directory block");
+ retval = ext2fs_new_inode(fs, EXT2_ROOT_INO, 040700,
+ ctx->inode_used_map, &ino);
+ if (retval == EXT2_ET_INODE_ALLOC_FAIL &&
+ fix_problem(ctx, PR_3_LPF_NO_SPACE, &pctx)) {
+ fix_problem(ctx, PR_3_NO_SPACE_TO_RECOVER, &pctx);
+ ctx->lost_and_found = EXT2_ROOT_INO;
return 0;
}
-
- retval = ext2fs_write_dir_block(fs, blk, block);
- free(block);
if (retval) {
- com_err("ext2fs_write_dir_block", retval,
- "while writing the directory block for /lost+found");
+ pctx.errcode = retval;
+ fix_problem(ctx, PR_3_ERR_LPF_NEW_INODE, &pctx);
return 0;
}
+ ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
+ ext2fs_mark_inode_bitmap2(ctx->inode_dir_map, ino);
+ ext2fs_inode_alloc_stats2(fs, ino, +1, 1);
/*
* Set up the inode structure
*/
memset(&inode, 0, sizeof(inode));
- inode.i_mode = 040755;
+ inode.i_mode = 040700;
inode.i_size = fs->blocksize;
- inode.i_atime = inode.i_ctime = inode.i_mtime = time(0);
+ inode.i_atime = inode.i_ctime = inode.i_mtime = ctx->now;
inode.i_links_count = 2;
- inode.i_blocks = fs->blocksize / 512;
+ ext2fs_iblk_set(fs, EXT2_INODE(&inode), 1);
inode.i_block[0] = blk;
/*
* Next, write out the inode.
*/
- retval = ext2fs_write_inode(fs, ino, &inode);
+ pctx.errcode = ext2fs_write_new_inode(fs, ino, EXT2_INODE(&inode));
+ if (pctx.errcode) {
+ pctx.str = "ext2fs_write_inode";
+ fix_problem(ctx, PR_3_CREATE_LPF_ERROR, &pctx);
+ return 0;
+ }
+
+ /*
+ * Now let's create the actual data block for the inode.
+ * Due to metadata_csum, the directory block MUST be written
+ * after the inode is written to disk!
+ */
+ retval = ext2fs_new_dir_block(fs, ino, EXT2_ROOT_INO, &block);
if (retval) {
- com_err("ext2fs_write_inode", retval,
- "While trying to create /lost+found");
+ pctx.errcode = retval;
+ fix_problem(ctx, PR_3_ERR_LPF_NEW_DIR_BLOCK, &pctx);
return 0;
}
+
+ retval = ext2fs_write_dir_block4(fs, blk, block, 0, ino);
+ ext2fs_free_mem(&block);
+ if (retval) {
+ pctx.errcode = retval;
+ fix_problem(ctx, PR_3_ERR_LPF_WRITE_BLOCK, &pctx);
+ return 0;
+ }
+
/*
* Finally, create the directory link
*/
- retval = ext2fs_link(fs, EXT2_ROOT_INO, name, ino, 0);
- if (retval) {
- com_err("ext2fs_link", retval, "While creating /lost+found");
+ pctx.errcode = ext2fs_link(fs, EXT2_ROOT_INO, name, ino, EXT2_FT_DIR);
+ if (pctx.errcode == EXT2_ET_DIR_NO_SPACE) {
+ pctx.errcode = ext2fs_expand_dir(fs, EXT2_ROOT_INO);
+ if (pctx.errcode)
+ goto link_error;
+ pctx.errcode = ext2fs_link(fs, EXT2_ROOT_INO, name, ino,
+ EXT2_FT_DIR);
+ }
+ if (pctx.errcode) {
+link_error:
+ pctx.str = "ext2fs_link";
+ fix_problem(ctx, PR_3_CREATE_LPF_ERROR, &pctx);
return 0;
}
/*
* Miscellaneous bookkeeping that needs to be kept straight.
*/
- add_dir_info(fs, ino, EXT2_ROOT_INO, &inode);
- adjust_inode_count(fs, EXT2_ROOT_INO, +1);
- inode_count[ino] = 2;
- inode_link_info[ino] = 2;
+ e2fsck_add_dir_info(ctx, ino, EXT2_ROOT_INO);
+ e2fsck_adjust_inode_count(ctx, EXT2_ROOT_INO, 1);
+ ext2fs_icount_store(ctx->inode_count, ino, 2);
+ ext2fs_icount_store(ctx->inode_link_info, ino, 2);
+ ctx->lost_and_found = ino;
+ quota_data_add(ctx->qctx, &inode, ino, EXT2_CLUSTER_SIZE(fs->super));
+ quota_data_inodes(ctx->qctx, &inode, ino, +1);
#if 0
printf("/lost+found created; inode #%lu\n", ino);
#endif
/*
* This routine will connect a file to lost+found
*/
-int reconnect_file(ext2_filsys fs, ino_t inode)
+int e2fsck_reconnect_file(e2fsck_t ctx, ext2_ino_t ino)
{
+ ext2_filsys fs = ctx->fs;
errcode_t retval;
char name[80];
-
- if (bad_lost_and_found) {
- printf("Bad or nonexistent /lost+found. Cannot reconnect.\n");
- return 1;
+ struct problem_context pctx;
+ struct ext2_inode inode;
+ int file_type = 0;
+
+ clear_problem_context(&pctx);
+ pctx.ino = ino;
+
+ if (!ctx->bad_lost_and_found && !ctx->lost_and_found) {
+ if (e2fsck_get_lost_and_found(ctx, 1) == 0)
+ ctx->bad_lost_and_found++;
}
- if (!lost_and_found) {
- lost_and_found = get_lost_and_found(fs);
- if (!lost_and_found) {
- printf("Bad or nonexistent /lost+found. Cannot reconnect.\n");
- bad_lost_and_found++;
- return 1;
- }
+ if (ctx->bad_lost_and_found) {
+ fix_problem(ctx, PR_3_NO_LPF, &pctx);
+ return 1;
}
- sprintf(name, "#%lu", inode);
- retval = ext2fs_link(fs, lost_and_found, name, inode, 0);
+ sprintf(name, "#%u", ino);
+ if (ext2fs_read_inode(fs, ino, &inode) == 0)
+ file_type = ext2_file_type(inode.i_mode);
+ retval = ext2fs_link(fs, ctx->lost_and_found, name, ino, file_type);
if (retval == EXT2_ET_DIR_NO_SPACE) {
- if (!ask("No room in /lost+found; expand /lost+found", 1))
+ if (!fix_problem(ctx, PR_3_EXPAND_LF_DIR, &pctx))
return 1;
- retval = expand_directory(fs, lost_and_found);
+ retval = e2fsck_expand_directory(ctx, ctx->lost_and_found,
+ 1, 0);
if (retval) {
- printf("Could not expand /lost+found: %s\n",
- error_message(retval));
+ pctx.errcode = retval;
+ fix_problem(ctx, PR_3_CANT_EXPAND_LPF, &pctx);
return 1;
}
- retval = ext2fs_link(fs, lost_and_found, name, inode, 0);
+ retval = ext2fs_link(fs, ctx->lost_and_found, name,
+ ino, file_type);
}
if (retval) {
- printf("Could not reconnect %lu: %s\n", inode,
- error_message(retval));
+ pctx.errcode = retval;
+ fix_problem(ctx, PR_3_CANT_RECONNECT, &pctx);
return 1;
}
-
- adjust_inode_count(fs, inode, +1);
+ e2fsck_adjust_inode_count(ctx, ino, 1);
return 0;
}
/*
* Utility routine to adjust the inode counts on an inode.
*/
-static errcode_t adjust_inode_count(ext2_filsys fs, ino_t ino, int adj)
+errcode_t e2fsck_adjust_inode_count(e2fsck_t ctx, ext2_ino_t ino, int adj)
{
+ ext2_filsys fs = ctx->fs;
errcode_t retval;
struct ext2_inode inode;
-
+
if (!ino)
return 0;
inode.i_links_count);
#endif
- inode.i_links_count += adj;
- inode_count[ino] += adj;
- inode_link_info[ino] += adj;
+ if (adj == 1) {
+ ext2fs_icount_increment(ctx->inode_count, ino, 0);
+ if (inode.i_links_count == (__u16) ~0)
+ return 0;
+ ext2fs_icount_increment(ctx->inode_link_info, ino, 0);
+ inode.i_links_count++;
+ } else if (adj == -1) {
+ ext2fs_icount_decrement(ctx->inode_count, ino, 0);
+ if (inode.i_links_count == 0)
+ return 0;
+ ext2fs_icount_decrement(ctx->inode_link_info, ino, 0);
+ inode.i_links_count--;
+ }
retval = ext2fs_write_inode(fs, ino, &inode);
if (retval)
*/
struct fix_dotdot_struct {
ext2_filsys fs;
- ino_t parent;
+ ext2_ino_t parent;
int done;
+ e2fsck_t ctx;
};
static int fix_dotdot_proc(struct ext2_dir_entry *dirent,
- int offset,
- int blocksize,
- char *buf,
- void *private)
+ int offset EXT2FS_ATTR((unused)),
+ int blocksize EXT2FS_ATTR((unused)),
+ char *buf EXT2FS_ATTR((unused)),
+ void *priv_data)
{
- struct fix_dotdot_struct *fp = (struct fix_dotdot_struct *) private;
+ struct fix_dotdot_struct *fp = (struct fix_dotdot_struct *) priv_data;
errcode_t retval;
+ struct problem_context pctx;
- if (dirent->name_len != 2)
+ if (ext2fs_dirent_name_len(dirent) != 2)
return 0;
if (strncmp(dirent->name, "..", 2))
return 0;
-
- retval = adjust_inode_count(fp->fs, dirent->inode, -1);
- if (retval)
- printf("Error while adjusting inode count on inode %u\n",
- dirent->inode);
- retval = adjust_inode_count(fp->fs, fp->parent, 1);
- if (retval)
- printf("Error while adjusting inode count on inode %lu\n",
- fp->parent);
+ clear_problem_context(&pctx);
+
+ retval = e2fsck_adjust_inode_count(fp->ctx, dirent->inode, -1);
+ if (retval) {
+ pctx.errcode = retval;
+ fix_problem(fp->ctx, PR_3_ADJUST_INODE, &pctx);
+ }
+ retval = e2fsck_adjust_inode_count(fp->ctx, fp->parent, 1);
+ if (retval) {
+ pctx.errcode = retval;
+ fix_problem(fp->ctx, PR_3_ADJUST_INODE, &pctx);
+ }
dirent->inode = fp->parent;
+ if (ext2fs_has_feature_filetype(fp->ctx->fs->super))
+ ext2fs_dirent_set_file_type(dirent, EXT2_FT_DIR);
+ else
+ ext2fs_dirent_set_file_type(dirent, EXT2_FT_UNKNOWN);
fp->done++;
return DIRENT_ABORT | DIRENT_CHANGED;
}
-static void fix_dotdot(ext2_filsys fs, struct dir_info *dir, ino_t parent)
+static void fix_dotdot(e2fsck_t ctx, ext2_ino_t ino, ext2_ino_t parent)
{
+ ext2_filsys fs = ctx->fs;
errcode_t retval;
struct fix_dotdot_struct fp;
+ struct problem_context pctx;
+ int flags, will_rehash;
fp.fs = fs;
fp.parent = parent;
fp.done = 0;
+ fp.ctx = ctx;
#if 0
- printf("Fixing '..' of inode %lu to be %lu...\n", dir->ino, parent);
+ printf("Fixing '..' of inode %lu to be %lu...\n", ino, parent);
#endif
-
- retval = ext2fs_dir_iterate(fs, dir->ino, DIRENT_FLAG_INCLUDE_EMPTY,
+
+ clear_problem_context(&pctx);
+ pctx.ino = ino;
+ will_rehash = e2fsck_dir_will_be_rehashed(ctx, ino);
+ if (will_rehash) {
+ flags = ctx->fs->flags;
+ ctx->fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
+ }
+ retval = ext2fs_dir_iterate(fs, ino, DIRENT_FLAG_INCLUDE_EMPTY,
0, fix_dotdot_proc, &fp);
+ if (will_rehash)
+ ctx->fs->flags = (flags & EXT2_FLAG_IGNORE_CSUM_ERRORS) |
+ (ctx->fs->flags & ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
if (retval || !fp.done) {
- printf("Couldn't fix parent of inode %lu: %s\n\n",
- dir->ino, retval ? error_message(retval) :
- "Couldn't find parent direntory entry");
+ pctx.errcode = retval;
+ fix_problem(ctx, retval ? PR_3_FIX_PARENT_ERR :
+ PR_3_FIX_PARENT_NOFIND, &pctx);
ext2fs_unmark_valid(fs);
}
- dir->dotdot = parent;
-
+ (void) e2fsck_dir_info_set_dotdot(ctx, ino, parent);
+ if (e2fsck_dir_info_set_parent(ctx, ino, ctx->lost_and_found))
+ fix_problem(ctx, PR_3_NO_DIRINFO, &pctx);
+
return;
}
*/
struct expand_dir_struct {
- int done;
- errcode_t err;
+ blk64_t num;
+ e2_blkcnt_t guaranteed_size;
+ blk64_t newblocks;
+ blk64_t last_block;
+ errcode_t err;
+ e2fsck_t ctx;
+ ext2_ino_t dir;
};
static int expand_dir_proc(ext2_filsys fs,
- blk_t *blocknr,
- int blockcnt,
- void *private)
+ blk64_t *blocknr,
+ e2_blkcnt_t blockcnt,
+ blk64_t ref_block EXT2FS_ATTR((unused)),
+ int ref_offset EXT2FS_ATTR((unused)),
+ void *priv_data)
{
- struct expand_dir_struct *es = (struct expand_dir_struct *) private;
- blk_t new_blk;
- static blk_t last_blk = 0;
+ struct expand_dir_struct *es = (struct expand_dir_struct *) priv_data;
+ blk64_t new_blk;
+ static blk64_t last_blk = 0;
char *block;
errcode_t retval;
-
+ e2fsck_t ctx;
+
+ ctx = es->ctx;
+
+ if (es->guaranteed_size && blockcnt >= es->guaranteed_size)
+ return BLOCK_ABORT;
+
+ if (blockcnt > 0)
+ es->last_block = blockcnt;
if (*blocknr) {
last_blk = *blocknr;
return 0;
}
- retval = ext2fs_new_block(fs, last_blk, block_found_map, &new_blk);
- if (retval) {
- es->err = retval;
- return BLOCK_ABORT;
+
+ if (blockcnt &&
+ (EXT2FS_B2C(fs, last_blk) == EXT2FS_B2C(fs, last_blk + 1)))
+ new_blk = last_blk + 1;
+ else {
+ last_blk &= ~EXT2FS_CLUSTER_MASK(fs);
+ retval = ext2fs_new_block2(fs, last_blk, ctx->block_found_map,
+ &new_blk);
+ if (retval) {
+ es->err = retval;
+ return BLOCK_ABORT;
+ }
+ es->newblocks++;
+ ext2fs_block_alloc_stats2(fs, new_blk, +1);
}
+ last_blk = new_blk;
+
if (blockcnt > 0) {
retval = ext2fs_new_dir_block(fs, 0, 0, &block);
if (retval) {
es->err = retval;
return BLOCK_ABORT;
}
- es->done = 1;
- } else {
- block = malloc(fs->blocksize);
- if (!block) {
- es->err = ENOMEM;
- return BLOCK_ABORT;
- }
- memset(block, 0, fs->blocksize);
- }
- retval = ext2fs_write_dir_block(fs, new_blk, block);
+ es->num--;
+ retval = ext2fs_write_dir_block4(fs, new_blk, block, 0,
+ es->dir);
+ ext2fs_free_mem(&block);
+ } else
+ retval = ext2fs_zero_blocks2(fs, new_blk, 1, NULL, NULL);
if (retval) {
es->err = retval;
return BLOCK_ABORT;
}
- free(block);
*blocknr = new_blk;
- ext2fs_mark_block_bitmap(block_found_map, new_blk);
- ext2fs_mark_block_bitmap(fs->block_map, new_blk);
- ext2fs_mark_bb_dirty(fs);
- if (es->done)
+ ext2fs_mark_block_bitmap2(ctx->block_found_map, new_blk);
+
+ if (es->num == 0)
return (BLOCK_CHANGED | BLOCK_ABORT);
else
return BLOCK_CHANGED;
}
-static errcode_t expand_directory(ext2_filsys fs, ino_t dir)
+errcode_t e2fsck_expand_directory(e2fsck_t ctx, ext2_ino_t dir,
+ int num, int guaranteed_size)
{
+ ext2_filsys fs = ctx->fs;
errcode_t retval;
struct expand_dir_struct es;
- struct ext2_inode inode;
-
+ struct ext2_inode_large inode;
+ blk64_t sz;
+
if (!(fs->flags & EXT2_FLAG_RW))
return EXT2_ET_RO_FILSYS;
+ /*
+ * Read the inode and block bitmaps in; we'll be messing with
+ * them.
+ */
+ e2fsck_read_bitmaps(ctx);
+
retval = ext2fs_check_directory(fs, dir);
if (retval)
return retval;
-
- es.done = 0;
+
+ es.num = num;
+ es.guaranteed_size = guaranteed_size;
+ es.last_block = 0;
es.err = 0;
-
- retval = ext2fs_block_iterate(fs, dir, BLOCK_FLAG_APPEND,
- 0, expand_dir_proc, &es);
+ es.newblocks = 0;
+ es.ctx = ctx;
+ es.dir = dir;
+
+ retval = ext2fs_block_iterate3(fs, dir, BLOCK_FLAG_APPEND,
+ 0, expand_dir_proc, &es);
if (es.err)
return es.err;
- if (!es.done)
- return EXT2_ET_EXPAND_DIR_ERR;
/*
* Update the size and block count fields in the inode.
*/
- retval = ext2fs_read_inode(fs, dir, &inode);
+ retval = ext2fs_read_inode_full(fs, dir,
+ EXT2_INODE(&inode), sizeof(inode));
if (retval)
return retval;
-
- inode.i_size += fs->blocksize;
- inode.i_blocks += fs->blocksize / 512;
- e2fsck_write_inode(fs, dir, &inode, "expand_directory");
+ sz = (es.last_block + 1) * fs->blocksize;
+ retval = ext2fs_inode_size_set(fs, EXT2_INODE(&inode), sz);
+ if (retval)
+ return retval;
+ ext2fs_iblk_add_blocks(fs, EXT2_INODE(&inode), es.newblocks);
+ quota_data_add(ctx->qctx, &inode, dir,
+ es.newblocks * EXT2_CLUSTER_SIZE(fs->super));
+
+ e2fsck_write_inode_full(ctx, dir, EXT2_INODE(&inode),
+ sizeof(inode), "expand_directory");
return 0;
}
-
-
git://git.whamcloud.com / tools / e2fsprogs.git / blobdiff