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-rw-r--r--debugfs/Android.bp80
-rw-r--r--debugfs/Makefile.in426
-rw-r--r--debugfs/debug_cmds.ct233
-rw-r--r--debugfs/debugfs.8.in880
-rw-r--r--debugfs/debugfs.c2682
-rw-r--r--debugfs/debugfs.h210
-rw-r--r--debugfs/do_journal.c972
-rw-r--r--debugfs/dump.c385
-rw-r--r--debugfs/extent_cmds.ct77
-rw-r--r--debugfs/extent_inode.c568
-rw-r--r--debugfs/filefrag.c330
-rw-r--r--debugfs/htree.c488
-rw-r--r--debugfs/icheck.c176
-rw-r--r--debugfs/journal.c947
-rw-r--r--debugfs/journal.h25
-rw-r--r--debugfs/logdump.c933
-rw-r--r--debugfs/ls.c252
-rw-r--r--debugfs/lsdel.c219
-rw-r--r--debugfs/ncheck.c223
-rw-r--r--debugfs/quota.c172
-rw-r--r--debugfs/ro_debug_cmds.ct99
-rw-r--r--debugfs/set_fields.c1024
-rw-r--r--debugfs/unused.c60
-rw-r--r--debugfs/util.c600
-rw-r--r--debugfs/xattrs.c503
-rw-r--r--debugfs/zap.c246
26 files changed, 12810 insertions, 0 deletions
diff --git a/debugfs/Android.bp b/debugfs/Android.bp
new file mode 100644
index 0000000..4d087b3
--- /dev/null
+++ b/debugfs/Android.bp
@@ -0,0 +1,80 @@
+// Copyright 2017 The Android Open Source Project
+
+//########################
+// Build the debugfs binary
+
+package {
+ // See: http://go/android-license-faq
+ // A large-scale-change added 'default_applicable_licenses' to import
+ // all of the 'license_kinds' from "external_e2fsprogs_license"
+ // to get the below license kinds:
+ // SPDX-license-identifier-GPL
+ // SPDX-license-identifier-GPL-2.0
+ default_applicable_licenses: ["external_e2fsprogs_license"],
+}
+
+cc_defaults {
+ name: "debugfs-defaults",
+ defaults: ["e2fsprogs-defaults"],
+ srcs: [
+ "debug_cmds.c",
+ "debugfs.c",
+ "util.c",
+ "ncheck.c",
+ "icheck.c",
+ "ls.c",
+ "lsdel.c",
+ "dump.c",
+ "set_fields.c",
+ "logdump.c",
+ "htree.c",
+ "unused.c",
+ "e2freefrag.c",
+ "filefrag.c",
+ "extent_cmds.c",
+ "extent_inode.c",
+ "zap.c",
+ "quota.c",
+ "xattrs.c",
+ "journal.c",
+ "revoke.c",
+ "recovery.c",
+ "do_journal.c",
+ ],
+ cflags: [
+ "-DDEBUGFS",
+ ],
+ include_dirs: [
+ "external/e2fsprogs/misc",
+ "external/e2fsprogs/e2fsck",
+ ],
+}
+
+debugfs_libs = [
+ "libext2_misc",
+ "libext2fs",
+ "libext2_blkid",
+ "libext2_uuid",
+ "libext2_ss",
+ "libext2_quota",
+ "libext2_com_err",
+ "libext2_e2p",
+ "libext2_support",
+]
+
+cc_binary {
+ name: "debugfs",
+ host_supported: true,
+ defaults: ["debugfs-defaults"],
+
+ shared_libs: debugfs_libs,
+}
+
+cc_binary {
+ name: "debugfs_static",
+ static_executable: true,
+ host_supported: true,
+ defaults: ["debugfs-defaults"],
+
+ static_libs: debugfs_libs,
+}
diff --git a/debugfs/Makefile.in b/debugfs/Makefile.in
new file mode 100644
index 0000000..67f8d0b
--- /dev/null
+++ b/debugfs/Makefile.in
@@ -0,0 +1,426 @@
+#
+# Standard e2fsprogs prologue....
+#
+
+srcdir = @srcdir@
+top_srcdir = @top_srcdir@
+VPATH = @srcdir@
+top_builddir = ..
+my_dir = debugfs
+INSTALL = @INSTALL@
+MKDIR_P = @MKDIR_P@
+
+@MCONFIG@
+
+PROGS= debugfs
+MANPAGES= debugfs.8
+
+MK_CMDS= _SS_DIR_OVERRIDE=$(srcdir)/../lib/ss ../lib/ss/mk_cmds
+
+DEBUG_OBJS= debug_cmds.o debugfs.o util.o ncheck.o icheck.o ls.o \
+ lsdel.o dump.o set_fields.o logdump.o htree.o unused.o e2freefrag.o \
+ filefrag.o extent_cmds.o extent_inode.o zap.o create_inode.o \
+ quota.o xattrs.o journal.o revoke.o recovery.o do_journal.o
+
+RO_DEBUG_OBJS= ro_debug_cmds.o ro_debugfs.o util.o ncheck.o icheck.o ls.o \
+ lsdel.o logdump.o htree.o e2freefrag.o filefrag.o extent_cmds.o \
+ extent_inode.o quota.o xattrs.o
+
+SRCS= debug_cmds.c $(srcdir)/debugfs.c $(srcdir)/util.c $(srcdir)/ls.c \
+ $(srcdir)/ncheck.c $(srcdir)/icheck.c $(srcdir)/lsdel.c \
+ $(srcdir)/dump.c $(srcdir)/set_fields.c ${srcdir}/logdump.c \
+ $(srcdir)/htree.c $(srcdir)/unused.c ${srcdir}/../misc/e2freefrag.c \
+ $(srcdir)/filefrag.c $(srcdir)/extent_inode.c $(srcdir)/zap.c \
+ $(srcdir)/../misc/create_inode.c $(srcdir)/xattrs.c $(srcdir)/quota.c \
+ $(srcdir)/journal.c $(srcdir)/../e2fsck/revoke.c \
+ $(srcdir)/../e2fsck/recovery.c $(srcdir)/do_journal.c
+
+LIBS= $(LIBSUPPORT) $(LIBEXT2FS) $(LIBE2P) $(LIBSS) $(LIBCOM_ERR) $(LIBBLKID) \
+ $(LIBUUID) $(LIBMAGIC) $(SYSLIBS)
+DEPLIBS= $(DEPLIBSUPPORT) $(LIBEXT2FS) $(LIBE2P) $(DEPLIBSS) $(DEPLIBCOM_ERR) \
+ $(DEPLIBBLKID) $(DEPLIBUUID)
+
+STATIC_LIBS= $(STATIC_LIBSUPPORT) $(STATIC_LIBEXT2FS) $(STATIC_LIBSS) \
+ $(STATIC_LIBCOM_ERR) $(STATIC_LIBBLKID) $(STATIC_LIBUUID) \
+ $(STATIC_LIBE2P) $(LIBMAGIC) $(SYSLIBS)
+STATIC_DEPLIBS= $(STATIC_LIBEXT2FS) $(DEPSTATIC_LIBSS) \
+ $(DEPSTATIC_LIBCOM_ERR) $(DEPSTATIC_LIBUUID) \
+ $(DEPSTATIC_LIBE2P)
+
+# This nastiness is needed because of jfs_user.h hackery; when we finally
+# clean up this mess, we should be able to drop it
+LOCAL_CFLAGS = -I$(srcdir)/../e2fsck -DDEBUGFS
+DEPEND_CFLAGS = -I$(srcdir)
+
+.c.o:
+ $(E) " CC $<"
+ $(Q) $(CC) -c $(ALL_CFLAGS) $< -o $@
+ $(Q) $(CHECK_CMD) $(ALL_CFLAGS) $<
+ $(Q) $(CPPCHECK_CMD) $(CPPFLAGS) $<
+
+all:: $(PROGS) $(MANPAGES)
+
+debugfs: $(DEBUG_OBJS) $(DEPLIBS)
+ $(E) " LD $@"
+ $(Q) $(CC) $(ALL_LDFLAGS) -o debugfs $(DEBUG_OBJS) $(LIBS)
+
+debugfs.static: $(DEBUG_OBJS) $(STATIC_DEPLIBS)
+ $(E) " LD $@"
+ $(Q) $(CC) $(LDFLAGS_STATIC) -o debugfs.static $(DEBUG_OBJS) \
+ $(STATIC_LIBS) $(READLINE_LIB)
+
+debugfs.static-libs: $(DEBUG_OBJS) $(STATIC_DEPLIBS)
+ $(E) " LD $@"
+ $(Q) $(CC) -o debugfs.static-libs $(DEBUG_OBJS) \
+ $(STATIC_LIBS) $(READLINE_LIB)
+
+rdebugfs: $(RO_DEBUG_OBJS) $(DEPLIBS)
+ $(E) " LD $@"
+ $(Q) $(CC) $(ALL_LDFLAGS) -o rdebugfs $(RO_DEBUG_OBJS) $(LIBS)
+
+debug_cmds.c debug_cmds.h: debug_cmds.ct
+ $(E) " MK_CMDS $@"
+ $(Q) $(MK_CMDS) $(srcdir)/debug_cmds.ct
+
+extent_cmds.c extent_cmds.h: extent_cmds.ct
+ $(E) " MK_CMDS $@"
+ $(Q) $(MK_CMDS) $(srcdir)/extent_cmds.ct
+
+ro_debug_cmds.c ro_debug_cmds.h: ro_debug_cmds.ct
+ $(E) " MK_CMDS $@"
+ $(Q) $(MK_CMDS) $(srcdir)/ro_debug_cmds.ct
+
+ro_debugfs.o: debugfs.c
+ $(E) " CC $@"
+ $(Q) $(CC) -c $(ALL_CFLAGS) $< -DREAD_ONLY -o $@
+
+e2freefrag.o: $(srcdir)/../misc/e2freefrag.c
+ $(E) " CC $@"
+ $(Q) $(CC) -c $(ALL_CFLAGS) -I$(srcdir) $< -o $@
+
+recovery.o: $(srcdir)/../e2fsck/recovery.c
+ $(E) " CC $@"
+ $(Q) $(CC) -c $(ALL_CFLAGS) -I$(srcdir) \
+ $(srcdir)/../e2fsck/recovery.c -o $@
+
+revoke.o: $(srcdir)/../e2fsck/revoke.c
+ $(E) " CC $@"
+ $(Q) $(CC) -c $(ALL_CFLAGS) -I$(srcdir) \
+ $(srcdir)/../e2fsck/revoke.c -o $@
+
+create_inode.o: $(srcdir)/../misc/create_inode.c
+ $(E) " CC $@"
+ $(Q) $(CC) -c $(ALL_CFLAGS) -I$(srcdir) \
+ $(srcdir)/../misc/create_inode.c -o $@
+
+debugfs.8: $(DEP_SUBSTITUTE) $(srcdir)/debugfs.8.in
+ $(E) " SUBST $@"
+ $(Q) $(SUBSTITUTE_UPTIME) $(srcdir)/debugfs.8.in debugfs.8
+
+installdirs:
+ $(E) " MKDIR_P $(root_sbindir) $(man8dir)"
+ $(Q) $(MKDIR_P) $(DESTDIR)$(root_sbindir) \
+ $(DESTDIR)$(man8dir)
+
+install: $(PROGS) $(MANPAGES) installdirs
+ $(Q) for i in $(PROGS); do \
+ echo " INSTALL $(root_sbindir)/$$i"; \
+ $(INSTALL_PROGRAM) $$i $(DESTDIR)$(root_sbindir)/$$i; \
+ done
+ $(Q) for i in $(MANPAGES); do \
+ for j in $(COMPRESS_EXT); do \
+ $(RM) -f $(DESTDIR)$(man8dir)/$$i.$$j; \
+ done; \
+ echo " INSTALL_DATA $(man8dir)/$$i"; \
+ $(INSTALL_DATA) $$i $(DESTDIR)$(man8dir)/$$i; \
+ done
+
+install-strip: install
+ $(Q) for i in $(PROGS); do \
+ echo " STRIP $(root_sbindir)/$$i"; \
+ $(STRIP) $(DESTDIR)$(root_sbindir)/$$i; \
+ done
+
+uninstall:
+ for i in $(PROGS); do \
+ $(RM) -f $(DESTDIR)$(root_sbindir)/$$i; \
+ done
+ for i in $(MANPAGES); do \
+ $(RM) -f $(DESTDIR)$(man8dir)/$$i; \
+ done
+
+clean::
+ $(RM) -f $(PROGS) debugfs.8 \#* *.s *.o *.a *~ debug_cmds.c \
+ extent_cmds.c ro_debug_cmds.c core rdebugfs debugfs.static \
+ debugfs.static-libs tst_set_fields
+
+mostlyclean: clean
+distclean: clean
+ $(RM) -f debug_cmds.c .depend Makefile $(srcdir)/TAGS \
+ $(srcdir)/Makefile.in.old $(srcdir)/recovery.c \
+ $(srcdir)/revoke.c
+
+tst_set_fields: set_fields.c util.c
+ $(E) " LD $@"
+ $(Q) $(CC) $(ALL_CFLAGS) $(ALL_LDFLAGS) $(SYSLIBS) -DUNITTEST \
+ -o tst_set_fields $(srcdir)/set_fields.c $(srcdir)/util.c $(LIBS)
+
+fullcheck check:: tst_set_fields
+ $(TESTENV) ./tst_set_fields
+
+# +++ Dependency line eater +++
+#
+# Makefile dependencies follow. This must be the last section in
+# the Makefile.in file
+#
+debug_cmds.o: debug_cmds.c $(top_srcdir)/lib/ss/ss.h \
+ $(top_builddir)/lib/ss/ss_err.h $(top_srcdir)/lib/et/com_err.h
+debugfs.o: $(srcdir)/debugfs.c $(top_builddir)/lib/config.h \
+ $(top_builddir)/lib/dirpaths.h $(srcdir)/debugfs.h $(top_srcdir)/lib/ss/ss.h \
+ $(top_builddir)/lib/ss/ss_err.h $(top_srcdir)/lib/et/com_err.h \
+ $(top_srcdir)/lib/ext2fs/ext2_fs.h $(top_builddir)/lib/ext2fs/ext2_types.h \
+ $(top_srcdir)/lib/ext2fs/ext2fs.h $(top_srcdir)/lib/ext2fs/ext3_extents.h \
+ $(top_srcdir)/lib/ext2fs/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
+ $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/hashmap.h \
+ $(top_srcdir)/lib/ext2fs/bitops.h $(srcdir)/../misc/create_inode.h \
+ $(top_srcdir)/lib/e2p/e2p.h $(top_srcdir)/lib/support/quotaio.h \
+ $(top_srcdir)/lib/support/dqblk_v2.h \
+ $(top_srcdir)/lib/support/quotaio_tree.h $(top_srcdir)/version.h \
+ $(srcdir)/../e2fsck/jfs_user.h $(top_srcdir)/lib/ext2fs/kernel-jbd.h \
+ $(top_srcdir)/lib/ext2fs/jfs_compat.h $(top_srcdir)/lib/ext2fs/kernel-list.h \
+ $(top_srcdir)/lib/ext2fs/compiler.h $(top_srcdir)/lib/support/plausible.h
+util.o: $(srcdir)/util.c $(top_builddir)/lib/config.h \
+ $(top_builddir)/lib/dirpaths.h $(top_srcdir)/lib/ss/ss.h \
+ $(top_builddir)/lib/ss/ss_err.h $(top_srcdir)/lib/et/com_err.h \
+ $(srcdir)/debugfs.h $(top_srcdir)/lib/ext2fs/ext2_fs.h \
+ $(top_builddir)/lib/ext2fs/ext2_types.h $(top_srcdir)/lib/ext2fs/ext2fs.h \
+ $(top_srcdir)/lib/ext2fs/ext3_extents.h $(top_srcdir)/lib/ext2fs/ext2_io.h \
+ $(top_builddir)/lib/ext2fs/ext2_err.h \
+ $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/hashmap.h \
+ $(top_srcdir)/lib/ext2fs/bitops.h $(srcdir)/../misc/create_inode.h \
+ $(top_srcdir)/lib/e2p/e2p.h $(top_srcdir)/lib/support/quotaio.h \
+ $(top_srcdir)/lib/support/dqblk_v2.h \
+ $(top_srcdir)/lib/support/quotaio_tree.h
+ls.o: $(srcdir)/ls.c $(top_builddir)/lib/config.h \
+ $(top_builddir)/lib/dirpaths.h $(srcdir)/debugfs.h $(top_srcdir)/lib/ss/ss.h \
+ $(top_builddir)/lib/ss/ss_err.h $(top_srcdir)/lib/et/com_err.h \
+ $(top_srcdir)/lib/ext2fs/ext2_fs.h $(top_builddir)/lib/ext2fs/ext2_types.h \
+ $(top_srcdir)/lib/ext2fs/ext2fs.h $(top_srcdir)/lib/ext2fs/ext3_extents.h \
+ $(top_srcdir)/lib/ext2fs/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
+ $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/hashmap.h \
+ $(top_srcdir)/lib/ext2fs/bitops.h $(srcdir)/../misc/create_inode.h \
+ $(top_srcdir)/lib/e2p/e2p.h $(top_srcdir)/lib/support/quotaio.h \
+ $(top_srcdir)/lib/support/dqblk_v2.h \
+ $(top_srcdir)/lib/support/quotaio_tree.h
+ncheck.o: $(srcdir)/ncheck.c $(top_builddir)/lib/config.h \
+ $(top_builddir)/lib/dirpaths.h $(srcdir)/debugfs.h $(top_srcdir)/lib/ss/ss.h \
+ $(top_builddir)/lib/ss/ss_err.h $(top_srcdir)/lib/et/com_err.h \
+ $(top_srcdir)/lib/ext2fs/ext2_fs.h $(top_builddir)/lib/ext2fs/ext2_types.h \
+ $(top_srcdir)/lib/ext2fs/ext2fs.h $(top_srcdir)/lib/ext2fs/ext3_extents.h \
+ $(top_srcdir)/lib/ext2fs/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
+ $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/hashmap.h \
+ $(top_srcdir)/lib/ext2fs/bitops.h $(srcdir)/../misc/create_inode.h \
+ $(top_srcdir)/lib/e2p/e2p.h $(top_srcdir)/lib/support/quotaio.h \
+ $(top_srcdir)/lib/support/dqblk_v2.h \
+ $(top_srcdir)/lib/support/quotaio_tree.h
+icheck.o: $(srcdir)/icheck.c $(top_builddir)/lib/config.h \
+ $(top_builddir)/lib/dirpaths.h $(srcdir)/debugfs.h $(top_srcdir)/lib/ss/ss.h \
+ $(top_builddir)/lib/ss/ss_err.h $(top_srcdir)/lib/et/com_err.h \
+ $(top_srcdir)/lib/ext2fs/ext2_fs.h $(top_builddir)/lib/ext2fs/ext2_types.h \
+ $(top_srcdir)/lib/ext2fs/ext2fs.h $(top_srcdir)/lib/ext2fs/ext3_extents.h \
+ $(top_srcdir)/lib/ext2fs/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
+ $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/hashmap.h \
+ $(top_srcdir)/lib/ext2fs/bitops.h $(srcdir)/../misc/create_inode.h \
+ $(top_srcdir)/lib/e2p/e2p.h $(top_srcdir)/lib/support/quotaio.h \
+ $(top_srcdir)/lib/support/dqblk_v2.h \
+ $(top_srcdir)/lib/support/quotaio_tree.h
+lsdel.o: $(srcdir)/lsdel.c $(top_builddir)/lib/config.h \
+ $(top_builddir)/lib/dirpaths.h $(srcdir)/debugfs.h $(top_srcdir)/lib/ss/ss.h \
+ $(top_builddir)/lib/ss/ss_err.h $(top_srcdir)/lib/et/com_err.h \
+ $(top_srcdir)/lib/ext2fs/ext2_fs.h $(top_builddir)/lib/ext2fs/ext2_types.h \
+ $(top_srcdir)/lib/ext2fs/ext2fs.h $(top_srcdir)/lib/ext2fs/ext3_extents.h \
+ $(top_srcdir)/lib/ext2fs/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
+ $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/hashmap.h \
+ $(top_srcdir)/lib/ext2fs/bitops.h $(srcdir)/../misc/create_inode.h \
+ $(top_srcdir)/lib/e2p/e2p.h $(top_srcdir)/lib/support/quotaio.h \
+ $(top_srcdir)/lib/support/dqblk_v2.h \
+ $(top_srcdir)/lib/support/quotaio_tree.h
+dump.o: $(srcdir)/dump.c $(top_builddir)/lib/config.h \
+ $(top_builddir)/lib/dirpaths.h $(srcdir)/debugfs.h $(top_srcdir)/lib/ss/ss.h \
+ $(top_builddir)/lib/ss/ss_err.h $(top_srcdir)/lib/et/com_err.h \
+ $(top_srcdir)/lib/ext2fs/ext2_fs.h $(top_builddir)/lib/ext2fs/ext2_types.h \
+ $(top_srcdir)/lib/ext2fs/ext2fs.h $(top_srcdir)/lib/ext2fs/ext3_extents.h \
+ $(top_srcdir)/lib/ext2fs/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
+ $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/hashmap.h \
+ $(top_srcdir)/lib/ext2fs/bitops.h $(srcdir)/../misc/create_inode.h \
+ $(top_srcdir)/lib/e2p/e2p.h $(top_srcdir)/lib/support/quotaio.h \
+ $(top_srcdir)/lib/support/dqblk_v2.h \
+ $(top_srcdir)/lib/support/quotaio_tree.h
+set_fields.o: $(srcdir)/set_fields.c $(top_builddir)/lib/config.h \
+ $(top_builddir)/lib/dirpaths.h $(srcdir)/debugfs.h $(top_srcdir)/lib/ss/ss.h \
+ $(top_builddir)/lib/ss/ss_err.h $(top_srcdir)/lib/et/com_err.h \
+ $(top_srcdir)/lib/ext2fs/ext2_fs.h $(top_builddir)/lib/ext2fs/ext2_types.h \
+ $(top_srcdir)/lib/ext2fs/ext2fs.h $(top_srcdir)/lib/ext2fs/ext3_extents.h \
+ $(top_srcdir)/lib/ext2fs/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
+ $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/hashmap.h \
+ $(top_srcdir)/lib/ext2fs/bitops.h $(srcdir)/../misc/create_inode.h \
+ $(top_srcdir)/lib/e2p/e2p.h $(top_srcdir)/lib/support/quotaio.h \
+ $(top_srcdir)/lib/support/dqblk_v2.h \
+ $(top_srcdir)/lib/support/quotaio_tree.h
+logdump.o: $(srcdir)/logdump.c $(top_builddir)/lib/config.h \
+ $(top_builddir)/lib/dirpaths.h $(srcdir)/debugfs.h $(top_srcdir)/lib/ss/ss.h \
+ $(top_builddir)/lib/ss/ss_err.h $(top_srcdir)/lib/et/com_err.h \
+ $(top_srcdir)/lib/ext2fs/ext2_fs.h $(top_builddir)/lib/ext2fs/ext2_types.h \
+ $(top_srcdir)/lib/ext2fs/ext2fs.h $(top_srcdir)/lib/ext2fs/ext3_extents.h \
+ $(top_srcdir)/lib/ext2fs/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
+ $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/hashmap.h \
+ $(top_srcdir)/lib/ext2fs/bitops.h $(srcdir)/../misc/create_inode.h \
+ $(top_srcdir)/lib/e2p/e2p.h $(top_srcdir)/lib/support/quotaio.h \
+ $(top_srcdir)/lib/support/dqblk_v2.h \
+ $(top_srcdir)/lib/support/quotaio_tree.h $(srcdir)/../e2fsck/jfs_user.h \
+ $(top_srcdir)/lib/ext2fs/kernel-jbd.h $(top_srcdir)/lib/ext2fs/jfs_compat.h \
+ $(top_srcdir)/lib/ext2fs/kernel-list.h $(top_srcdir)/lib/ext2fs/compiler.h \
+ $(top_srcdir)/lib/ext2fs/fast_commit.h
+htree.o: $(srcdir)/htree.c $(top_builddir)/lib/config.h \
+ $(top_builddir)/lib/dirpaths.h $(srcdir)/debugfs.h $(top_srcdir)/lib/ss/ss.h \
+ $(top_builddir)/lib/ss/ss_err.h $(top_srcdir)/lib/et/com_err.h \
+ $(top_srcdir)/lib/ext2fs/ext2_fs.h $(top_builddir)/lib/ext2fs/ext2_types.h \
+ $(top_srcdir)/lib/ext2fs/ext2fs.h $(top_srcdir)/lib/ext2fs/ext3_extents.h \
+ $(top_srcdir)/lib/ext2fs/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
+ $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/hashmap.h \
+ $(top_srcdir)/lib/ext2fs/bitops.h $(srcdir)/../misc/create_inode.h \
+ $(top_srcdir)/lib/e2p/e2p.h $(top_srcdir)/lib/support/quotaio.h \
+ $(top_srcdir)/lib/support/dqblk_v2.h \
+ $(top_srcdir)/lib/support/quotaio_tree.h
+unused.o: $(srcdir)/unused.c $(top_builddir)/lib/config.h \
+ $(top_builddir)/lib/dirpaths.h $(srcdir)/debugfs.h $(top_srcdir)/lib/ss/ss.h \
+ $(top_builddir)/lib/ss/ss_err.h $(top_srcdir)/lib/et/com_err.h \
+ $(top_srcdir)/lib/ext2fs/ext2_fs.h $(top_builddir)/lib/ext2fs/ext2_types.h \
+ $(top_srcdir)/lib/ext2fs/ext2fs.h $(top_srcdir)/lib/ext2fs/ext3_extents.h \
+ $(top_srcdir)/lib/ext2fs/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
+ $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/hashmap.h \
+ $(top_srcdir)/lib/ext2fs/bitops.h $(srcdir)/../misc/create_inode.h \
+ $(top_srcdir)/lib/e2p/e2p.h $(top_srcdir)/lib/support/quotaio.h \
+ $(top_srcdir)/lib/support/dqblk_v2.h \
+ $(top_srcdir)/lib/support/quotaio_tree.h
+e2freefrag.o: $(srcdir)/../misc/e2freefrag.c $(top_builddir)/lib/config.h \
+ $(top_builddir)/lib/dirpaths.h $(top_srcdir)/lib/ext2fs/ext2_fs.h \
+ $(top_builddir)/lib/ext2fs/ext2_types.h $(top_srcdir)/lib/ext2fs/ext2fs.h \
+ $(top_srcdir)/lib/ext2fs/ext3_extents.h $(top_srcdir)/lib/et/com_err.h \
+ $(top_srcdir)/lib/ext2fs/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
+ $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/hashmap.h \
+ $(top_srcdir)/lib/ext2fs/bitops.h $(srcdir)/../misc/e2freefrag.h \
+ $(srcdir)/debugfs.h $(top_srcdir)/lib/ss/ss.h \
+ $(top_builddir)/lib/ss/ss_err.h $(srcdir)/../misc/create_inode.h \
+ $(top_srcdir)/lib/e2p/e2p.h $(top_srcdir)/lib/support/quotaio.h \
+ $(top_srcdir)/lib/support/dqblk_v2.h \
+ $(top_srcdir)/lib/support/quotaio_tree.h
+filefrag.o: $(srcdir)/filefrag.c $(top_builddir)/lib/config.h \
+ $(top_builddir)/lib/dirpaths.h $(srcdir)/debugfs.h $(top_srcdir)/lib/ss/ss.h \
+ $(top_builddir)/lib/ss/ss_err.h $(top_srcdir)/lib/et/com_err.h \
+ $(top_srcdir)/lib/ext2fs/ext2_fs.h $(top_builddir)/lib/ext2fs/ext2_types.h \
+ $(top_srcdir)/lib/ext2fs/ext2fs.h $(top_srcdir)/lib/ext2fs/ext3_extents.h \
+ $(top_srcdir)/lib/ext2fs/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
+ $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/hashmap.h \
+ $(top_srcdir)/lib/ext2fs/bitops.h $(srcdir)/../misc/create_inode.h \
+ $(top_srcdir)/lib/e2p/e2p.h $(top_srcdir)/lib/support/quotaio.h \
+ $(top_srcdir)/lib/support/dqblk_v2.h \
+ $(top_srcdir)/lib/support/quotaio_tree.h
+extent_inode.o: $(srcdir)/extent_inode.c $(top_builddir)/lib/config.h \
+ $(top_builddir)/lib/dirpaths.h $(srcdir)/debugfs.h $(top_srcdir)/lib/ss/ss.h \
+ $(top_builddir)/lib/ss/ss_err.h $(top_srcdir)/lib/et/com_err.h \
+ $(top_srcdir)/lib/ext2fs/ext2_fs.h $(top_builddir)/lib/ext2fs/ext2_types.h \
+ $(top_srcdir)/lib/ext2fs/ext2fs.h $(top_srcdir)/lib/ext2fs/ext3_extents.h \
+ $(top_srcdir)/lib/ext2fs/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
+ $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/hashmap.h \
+ $(top_srcdir)/lib/ext2fs/bitops.h $(srcdir)/../misc/create_inode.h \
+ $(top_srcdir)/lib/e2p/e2p.h $(top_srcdir)/lib/support/quotaio.h \
+ $(top_srcdir)/lib/support/dqblk_v2.h \
+ $(top_srcdir)/lib/support/quotaio_tree.h
+zap.o: $(srcdir)/zap.c $(top_builddir)/lib/config.h \
+ $(top_builddir)/lib/dirpaths.h $(srcdir)/debugfs.h $(top_srcdir)/lib/ss/ss.h \
+ $(top_builddir)/lib/ss/ss_err.h $(top_srcdir)/lib/et/com_err.h \
+ $(top_srcdir)/lib/ext2fs/ext2_fs.h $(top_builddir)/lib/ext2fs/ext2_types.h \
+ $(top_srcdir)/lib/ext2fs/ext2fs.h $(top_srcdir)/lib/ext2fs/ext3_extents.h \
+ $(top_srcdir)/lib/ext2fs/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
+ $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/hashmap.h \
+ $(top_srcdir)/lib/ext2fs/bitops.h $(srcdir)/../misc/create_inode.h \
+ $(top_srcdir)/lib/e2p/e2p.h $(top_srcdir)/lib/support/quotaio.h \
+ $(top_srcdir)/lib/support/dqblk_v2.h \
+ $(top_srcdir)/lib/support/quotaio_tree.h
+create_inode.o: $(srcdir)/../misc/create_inode.c $(top_builddir)/lib/config.h \
+ $(top_builddir)/lib/dirpaths.h $(top_srcdir)/lib/ext2fs/ext2fs.h \
+ $(top_builddir)/lib/ext2fs/ext2_types.h $(top_srcdir)/lib/ext2fs/ext2_fs.h \
+ $(top_srcdir)/lib/ext2fs/ext3_extents.h $(top_srcdir)/lib/et/com_err.h \
+ $(top_srcdir)/lib/ext2fs/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
+ $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/hashmap.h \
+ $(top_srcdir)/lib/ext2fs/bitops.h $(top_srcdir)/lib/ext2fs/fiemap.h \
+ $(srcdir)/../misc/create_inode.h $(top_srcdir)/lib/e2p/e2p.h \
+ $(top_srcdir)/lib/support/nls-enable.h
+xattrs.o: $(srcdir)/xattrs.c $(top_builddir)/lib/config.h \
+ $(top_builddir)/lib/dirpaths.h $(top_srcdir)/lib/support/cstring.h \
+ $(srcdir)/debugfs.h $(top_srcdir)/lib/ss/ss.h \
+ $(top_builddir)/lib/ss/ss_err.h $(top_srcdir)/lib/et/com_err.h \
+ $(top_srcdir)/lib/ext2fs/ext2_fs.h $(top_builddir)/lib/ext2fs/ext2_types.h \
+ $(top_srcdir)/lib/ext2fs/ext2fs.h $(top_srcdir)/lib/ext2fs/ext3_extents.h \
+ $(top_srcdir)/lib/ext2fs/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
+ $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/hashmap.h \
+ $(top_srcdir)/lib/ext2fs/bitops.h $(srcdir)/../misc/create_inode.h \
+ $(top_srcdir)/lib/e2p/e2p.h $(top_srcdir)/lib/support/quotaio.h \
+ $(top_srcdir)/lib/support/dqblk_v2.h \
+ $(top_srcdir)/lib/support/quotaio_tree.h
+quota.o: $(srcdir)/quota.c $(top_builddir)/lib/config.h \
+ $(top_builddir)/lib/dirpaths.h $(srcdir)/debugfs.h $(top_srcdir)/lib/ss/ss.h \
+ $(top_builddir)/lib/ss/ss_err.h $(top_srcdir)/lib/et/com_err.h \
+ $(top_srcdir)/lib/ext2fs/ext2_fs.h $(top_builddir)/lib/ext2fs/ext2_types.h \
+ $(top_srcdir)/lib/ext2fs/ext2fs.h $(top_srcdir)/lib/ext2fs/ext3_extents.h \
+ $(top_srcdir)/lib/ext2fs/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
+ $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/hashmap.h \
+ $(top_srcdir)/lib/ext2fs/bitops.h $(srcdir)/../misc/create_inode.h \
+ $(top_srcdir)/lib/e2p/e2p.h $(top_srcdir)/lib/support/quotaio.h \
+ $(top_srcdir)/lib/support/dqblk_v2.h \
+ $(top_srcdir)/lib/support/quotaio_tree.h
+journal.o: $(srcdir)/journal.c $(top_builddir)/lib/config.h \
+ $(top_builddir)/lib/dirpaths.h $(srcdir)/journal.h \
+ $(srcdir)/../e2fsck/jfs_user.h $(top_srcdir)/lib/ext2fs/ext2_fs.h \
+ $(top_builddir)/lib/ext2fs/ext2_types.h $(top_srcdir)/lib/ext2fs/ext2fs.h \
+ $(top_srcdir)/lib/ext2fs/ext3_extents.h $(top_srcdir)/lib/et/com_err.h \
+ $(top_srcdir)/lib/ext2fs/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
+ $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/hashmap.h \
+ $(top_srcdir)/lib/ext2fs/bitops.h $(top_srcdir)/lib/ext2fs/kernel-jbd.h \
+ $(top_srcdir)/lib/ext2fs/jfs_compat.h $(top_srcdir)/lib/ext2fs/kernel-list.h \
+ $(top_srcdir)/lib/ext2fs/compiler.h
+revoke.o: $(srcdir)/../e2fsck/revoke.c $(srcdir)/../e2fsck/jfs_user.h \
+ $(top_builddir)/lib/config.h $(top_builddir)/lib/dirpaths.h \
+ $(top_srcdir)/lib/ext2fs/ext2_fs.h $(top_builddir)/lib/ext2fs/ext2_types.h \
+ $(top_srcdir)/lib/ext2fs/ext2fs.h $(top_srcdir)/lib/ext2fs/ext3_extents.h \
+ $(top_srcdir)/lib/et/com_err.h $(top_srcdir)/lib/ext2fs/ext2_io.h \
+ $(top_builddir)/lib/ext2fs/ext2_err.h \
+ $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/hashmap.h \
+ $(top_srcdir)/lib/ext2fs/bitops.h $(top_srcdir)/lib/ext2fs/kernel-jbd.h \
+ $(top_srcdir)/lib/ext2fs/jfs_compat.h $(top_srcdir)/lib/ext2fs/kernel-list.h \
+ $(top_srcdir)/lib/ext2fs/compiler.h
+recovery.o: $(srcdir)/../e2fsck/recovery.c $(srcdir)/../e2fsck/jfs_user.h \
+ $(top_builddir)/lib/config.h $(top_builddir)/lib/dirpaths.h \
+ $(top_srcdir)/lib/ext2fs/ext2_fs.h $(top_builddir)/lib/ext2fs/ext2_types.h \
+ $(top_srcdir)/lib/ext2fs/ext2fs.h $(top_srcdir)/lib/ext2fs/ext3_extents.h \
+ $(top_srcdir)/lib/et/com_err.h $(top_srcdir)/lib/ext2fs/ext2_io.h \
+ $(top_builddir)/lib/ext2fs/ext2_err.h \
+ $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/hashmap.h \
+ $(top_srcdir)/lib/ext2fs/bitops.h $(top_srcdir)/lib/ext2fs/kernel-jbd.h \
+ $(top_srcdir)/lib/ext2fs/jfs_compat.h $(top_srcdir)/lib/ext2fs/kernel-list.h \
+ $(top_srcdir)/lib/ext2fs/compiler.h
+do_journal.o: $(srcdir)/do_journal.c $(top_builddir)/lib/config.h \
+ $(top_builddir)/lib/dirpaths.h $(srcdir)/debugfs.h $(top_srcdir)/lib/ss/ss.h \
+ $(top_builddir)/lib/ss/ss_err.h $(top_srcdir)/lib/et/com_err.h \
+ $(top_srcdir)/lib/ext2fs/ext2_fs.h $(top_builddir)/lib/ext2fs/ext2_types.h \
+ $(top_srcdir)/lib/ext2fs/ext2fs.h $(top_srcdir)/lib/ext2fs/ext3_extents.h \
+ $(top_srcdir)/lib/ext2fs/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
+ $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/hashmap.h \
+ $(top_srcdir)/lib/ext2fs/bitops.h $(srcdir)/../misc/create_inode.h \
+ $(top_srcdir)/lib/e2p/e2p.h $(top_srcdir)/lib/support/quotaio.h \
+ $(top_srcdir)/lib/support/dqblk_v2.h \
+ $(top_srcdir)/lib/support/quotaio_tree.h \
+ $(top_srcdir)/lib/ext2fs/kernel-jbd.h $(top_srcdir)/lib/ext2fs/jfs_compat.h \
+ $(top_srcdir)/lib/ext2fs/kernel-list.h $(top_srcdir)/lib/ext2fs/compiler.h \
+ $(srcdir)/journal.h $(srcdir)/../e2fsck/jfs_user.h
diff --git a/debugfs/debug_cmds.ct b/debugfs/debug_cmds.ct
new file mode 100644
index 0000000..1ff6c9d
--- /dev/null
+++ b/debugfs/debug_cmds.ct
@@ -0,0 +1,233 @@
+#
+# Copyright (C) 1993 Theodore Ts'o. This file may be redistributed
+# under the terms of the GNU Public License.
+#
+command_table debug_cmds;
+
+request do_show_debugfs_params, "Show debugfs parameters",
+ show_debugfs_params, params;
+
+request do_open_filesys, "Open a filesystem",
+ open_filesys, open;
+
+request do_close_filesys, "Close the filesystem",
+ close_filesys, close;
+
+request do_freefrag, "Report free space fragmentation",
+ freefrag, e2freefrag;
+
+request do_features, "Set/print superblock features",
+ feature, features;
+
+request do_dirty_filesys, "Mark the filesystem as dirty",
+ dirty_filesys, dirty;
+
+request do_init_filesys, "Initialize a filesystem (DESTROYS DATA)",
+ init_filesys;
+
+request do_show_super_stats, "Show superblock statistics",
+ show_super_stats, stats;
+
+request do_ncheck, "Do inode->name translation",
+ ncheck;
+
+request do_icheck, "Do block->inode translation",
+ icheck;
+
+request do_chroot, "Change root directory",
+ change_root_directory, chroot;
+
+request do_change_working_dir, "Change working directory",
+ change_working_directory, cd;
+
+request do_list_dir, "List directory",
+ list_directory, ls;
+
+request do_stat, "Show inode information ",
+ show_inode_info, stat;
+
+request do_dump_extents, "Dump extents information ",
+ dump_extents, extents, ex;
+
+request do_blocks, "Dump blocks used by an inode ",
+ blocks;
+
+request do_filefrag, "Report fragmentation information for an inode",
+ filefrag;
+
+request do_link, "Create directory link",
+ link, ln;
+
+request do_unlink, "Delete a directory link",
+ unlink;
+
+request do_mkdir, "Create a directory",
+ mkdir;
+
+request do_rmdir, "Remove a directory",
+ rmdir;
+
+request do_rm, "Remove a file (unlink and kill_file, if appropriate)",
+ rm;
+
+request do_kill_file, "Deallocate an inode and its blocks",
+ kill_file;
+
+request do_copy_inode, "Copy the inode structure",
+ copy_inode;
+
+request do_clri, "Clear an inode's contents",
+ clri;
+
+request do_freei, "Clear an inode's in-use flag",
+ freei;
+
+request do_seti, "Set an inode's in-use flag",
+ seti;
+
+request do_testi, "Test an inode's in-use flag",
+ testi;
+
+request do_freeb, "Clear a block's in-use flag",
+ freeb;
+
+request do_setb, "Set a block's in-use flag",
+ setb;
+
+request do_testb, "Test a block's in-use flag",
+ testb;
+
+request do_modify_inode, "Modify an inode by structure",
+ modify_inode, mi;
+
+request do_find_free_block, "Find free block(s)",
+ find_free_block, ffb;
+
+request do_find_free_inode, "Find free inode(s)",
+ find_free_inode, ffi;
+
+request do_print_working_directory, "Print current working directory",
+ print_working_directory, pwd;
+
+request do_expand_dir, "Expand directory",
+ expand_dir, expand;
+
+request do_mknod, "Create a special file",
+ mknod;
+
+request do_lsdel, "List deleted inodes",
+ list_deleted_inodes, lsdel;
+
+request do_undel, "Undelete file",
+ undelete, undel;
+
+request do_write, "Copy a file from your native filesystem",
+ write;
+
+request do_dump, "Dump an inode out to a file",
+ dump_inode, dump;
+
+request do_cat, "Dump an inode out to stdout",
+ cat;
+
+request do_lcd, "Change the current directory on your native filesystem",
+ lcd;
+
+request do_rdump, "Recursively dump a directory to the native filesystem",
+ rdump;
+
+request do_set_super, "Set superblock value",
+ set_super_value, ssv;
+
+request do_set_inode, "Set inode field",
+ set_inode_field, sif;
+
+request do_set_block_group_descriptor, "Set block group descriptor field",
+ set_block_group, set_bg;
+
+request do_logdump, "Dump the contents of the journal",
+ logdump;
+
+request do_htree_dump, "Dump a hash-indexed directory",
+ htree_dump, htree;
+
+request do_dx_hash, "Calculate the directory hash of a filename",
+ dx_hash, hash;
+
+request do_dirsearch, "Search a directory for a particular filename",
+ dirsearch;
+
+request do_bmap, "Calculate the logical->physical block mapping for an inode",
+ bmap;
+
+request do_fallocate, "Allocate uninitialized blocks to an inode",
+ fallocate;
+
+request do_punch, "Punch (or truncate) blocks from an inode by deallocating them",
+ punch, truncate;
+
+request do_symlink, "Create a symbolic link",
+ symlink;
+
+request do_imap, "Calculate the location of an inode",
+ imap;
+
+request do_dump_unused, "Dump unused blocks",
+ dump_unused;
+
+request do_set_current_time, "Set current time to use when setting filesystem fields",
+ set_current_time;
+
+request do_supported_features, "Print features supported by this version of e2fsprogs",
+ supported_features;
+
+request do_dump_mmp, "Dump MMP information",
+ dump_mmp;
+
+request do_set_mmp_value, "Set MMP value",
+ set_mmp_value, smmp;
+
+request do_extent_open, "Open inode for extent manipulation",
+ extent_open, eo;
+
+request do_zap_block, "Zap block: fill with 0, pattern, flip bits etc.",
+ zap_block, zap;
+
+request do_block_dump, "Dump contents of a block",
+ block_dump, bdump, bd;
+
+request do_list_xattr, "List extended attributes of an inode",
+ ea_list;
+
+request do_get_xattr, "Get an extended attribute of an inode",
+ ea_get;
+
+request do_set_xattr, "Set an extended attribute of an inode",
+ ea_set;
+
+request do_rm_xattr, "Remove an extended attribute of an inode",
+ ea_rm;
+
+request do_list_quota, "List quota",
+ list_quota, lq;
+
+request do_get_quota, "Get quota",
+ get_quota, gq;
+
+request do_idump, "Dump the inode structure in hex",
+ inode_dump, idump, id;
+
+request do_journal_open, "Open the journal",
+ journal_open, jo;
+
+request do_journal_close, "Close the journal",
+ journal_close, jc;
+
+request do_journal_write, "Write a transaction to the journal",
+ journal_write, jw;
+
+request do_journal_run, "Recover the journal",
+ journal_run, jr;
+
+end;
+
diff --git a/debugfs/debugfs.8.in b/debugfs/debugfs.8.in
new file mode 100644
index 0000000..5b5329c
--- /dev/null
+++ b/debugfs/debugfs.8.in
@@ -0,0 +1,880 @@
+.\" -*- nroff -*-
+.\" Copyright 1993, 1994, 1995 by Theodore Ts'o. All Rights Reserved.
+.\" This file may be copied under the terms of the GNU Public License.
+.\"
+.TH DEBUGFS 8 "@E2FSPROGS_MONTH@ @E2FSPROGS_YEAR@" "E2fsprogs version @E2FSPROGS_VERSION@"
+.SH NAME
+debugfs \- ext2/ext3/ext4 file system debugger
+.SH SYNOPSIS
+.B debugfs
+[
+.B \-DVwcin
+]
+[
+.B \-b
+blocksize
+]
+[
+.B \-s
+superblock
+]
+[
+.B \-f
+cmd_file
+]
+[
+.B \-R
+request
+]
+[
+.B \-d
+data_source_device
+]
+[
+.B \-z
+.I undo_file
+]
+[
+device
+]
+.SH DESCRIPTION
+The
+.B debugfs
+program is an interactive file system debugger. It can be used to
+examine and change the state of an ext2, ext3, or ext4 file system.
+.PP
+.I device
+is a block device (e.g., /dev/sdXX) or a file containing the file system.
+.SH OPTIONS
+.TP
+.I \-w
+Specifies that the file system should be opened in read-write mode.
+Without this option, the file system is opened in read-only mode.
+.TP
+.I \-n
+Disables metadata checksum verification. This should only be used if
+you believe the metadata to be correct despite the complaints of
+e2fsprogs.
+.TP
+.I \-c
+Specifies that the file system should be opened in catastrophic mode, in
+which the inode and group bitmaps are not read initially. This can be
+useful for file systems with significant corruption, but because of this,
+catastrophic mode forces the file system to be opened read-only.
+.TP
+.I \-i
+Specifies that
+.I device
+represents an ext2 image file created by the
+.B e2image
+program. Since the ext2 image file only contains the superblock, block
+group descriptor, block and inode allocation bitmaps, and
+the inode table, many
+.B debugfs
+commands will not function properly.
+.B Warning:
+no safety checks are in place, and
+.B debugfs
+may fail in interesting ways if commands such as
+.IR ls ", " dump ", "
+etc. are tried without specifying the
+.I data_source_device
+using the
+.I \-d
+option.
+.B debugfs
+is a debugging tool. It has rough edges!
+.TP
+.I -d data_source_device
+Used with the
+.I \-i
+option, specifies that
+.I data_source_device
+should be used when reading blocks not found in the ext2 image file.
+This includes data, directory, and indirect blocks.
+.TP
+.I -b blocksize
+Forces the use of the given block size (in bytes) for the file system,
+rather than detecting the correct block size automatically. (This
+option is rarely needed; it is used primarily when the file system is
+extremely badly damaged/corrupted.)
+.TP
+.I -s superblock
+Causes the file system superblock to be read from the given block
+number, instead of using the primary superblock (located at an offset of
+1024 bytes from the beginning of the file system). If you specify the
+.I -s
+option, you must also provide the blocksize of the file system via the
+.I -b
+option. (This
+option is rarely needed; it is used primarily when the file system is
+extremely badly damaged/corrupted.)
+.TP
+.I -f cmd_file
+Causes
+.B debugfs
+to read in commands from
+.IR cmd_file ,
+and execute them. When
+.B debugfs
+is finished executing those commands, it will exit.
+.TP
+.I -D
+Causes
+.B debugfs
+to open the device using Direct I/O, bypassing the buffer cache. Note
+that some Linux devices, notably device mapper as of this writing, do
+not support Direct I/O.
+.TP
+.I -R request
+Causes
+.B debugfs
+to execute the single command
+.IR request ,
+and then exit.
+.TP
+.I -V
+print the version number of
+.B debugfs
+and exit.
+.TP
+.BI \-z " undo_file"
+Before overwriting a file system block, write the old contents of the block to
+an undo file. This undo file can be used with e2undo(8) to restore the old
+contents of the file system should something go wrong. If the empty string is
+passed as the undo_file argument, the undo file will be written to a file named
+debugfs-\fIdevice\fR.e2undo in the directory specified via the
+\fIE2FSPROGS_UNDO_DIR\fR environment variable.
+
+WARNING: The undo file cannot be used to recover from a power or system crash.
+.SH SPECIFYING FILES
+Many
+.B debugfs
+commands take a
+.I filespec
+as an argument to specify an inode (as opposed to a pathname)
+in the file system which is currently opened by
+.BR debugfs .
+The
+.I filespec
+argument may be specified in two forms. The first form is an inode
+number surrounded by angle brackets, e.g.,
+.IR <2> .
+The second form is a pathname; if the pathname is prefixed by a forward slash
+('/'), then it is interpreted relative to the root of the file system
+which is currently opened by
+.BR debugfs .
+If not, the pathname is
+interpreted relative to the current working directory as maintained by
+.BR debugfs .
+This may be modified by using the
+.B debugfs
+command
+.IR cd .
+.\"
+.\"
+.\"
+.SH COMMANDS
+This is a list of the commands which
+.B debugfs
+supports.
+.TP
+.BI blocks " filespec"
+Print the blocks used by the inode
+.I filespec
+to stdout.
+.TP
+.BI bmap " [ -a ] filespec logical_block [physical_block]"
+Print or set the physical block number corresponding to the logical block number
+.I logical_block
+in the inode
+.IR filespec .
+If the
+.I \-a
+flag is specified, try to allocate a block if necessary.
+.TP
+.BI block_dump " '[ -x ] [-f filespec] block_num"
+Dump the file system block given by
+.I block_num
+in hex and ASCII format to the console. If the
+.I \-f
+option is specified, the block number is relative to the start of the given
+.BR filespec .
+If the
+.I \-x
+option is specified, the block is interpreted as an extended attribute
+block and printed to show the structure of extended attribute data
+structures.
+.TP
+.BI cat " filespec"
+Dump the contents of the inode
+.I filespec
+to stdout.
+.TP
+.BI cd " filespec"
+Change the current working directory to
+.IR filespec .
+.TP
+.BI chroot " filespec"
+Change the root directory to be the directory
+.IR filespec .
+.TP
+.BI close " [-a]"
+Close the currently open file system. If the
+.I -a
+option is specified, write out any changes to the superblock and block
+group descriptors to all of the backup superblocks, not just to the
+master superblock.
+.TP
+.BI clri " filespec"
+Clear the contents of the inode
+.IR filespec .
+.TP
+.BI copy_inode " source_inode destination_inode"
+Copy the contents of the inode structure in
+.I source_inode
+and use it to overwrite the inode structure at
+.IR destination_inode .
+.TP
+.BI dirsearch " filespec filename"
+Search the directory
+.I filespec
+for
+.IR filename .
+.TP
+.BI dirty " [-clean]"
+Mark the file system as dirty, so that the superblocks will be written on exit.
+Additionally, clear the superblock's valid flag, or set it if
+.I -clean
+is specified.
+.TP
+.BI dump " [-p] filespec out_file"
+Dump the contents of the inode
+.I filespec
+to the output file
+.IR out_file .
+If the
+.I -p
+option is given set the owner, group and permissions information on
+.I out_file
+to match
+.IR filespec .
+.TP
+.BI dump_mmp " [mmp_block]"
+Display the multiple-mount protection (mmp) field values. If
+.I mmp_block
+is specified then verify and dump the MMP values from the given block
+number, otherwise use the
+.B s_mmp_block
+field in the superblock to locate and use the existing MMP block.
+.TP
+.BI dx_hash " [-h hash_alg] [-s hash_seed] filename"
+Calculate the directory hash of
+.IR filename .
+The hash algorithm specified with
+.I -h
+may be
+.BR legacy , " half_md4" ", or " tea .
+The hash seed specified with
+.I -s
+must be in UUID format.
+.TP
+.BI dump_extents " [-n] [-l] filespec"
+Dump the extent tree of the inode
+.IR filespec .
+The
+.I -n
+flag will cause
+.B dump_extents
+to only display the interior nodes in the extent tree. The
+.I -l
+flag will cause
+.B dump_extents
+to only display the leaf nodes in the extent tree.
+.IP
+(Please note that the length and range of blocks for the last extent in
+an interior node is an estimate by the extents library functions, and is
+not stored in file system data structures. Hence, the values displayed
+may not necessarily by accurate and does not indicate a problem or
+corruption in the file system.)
+.TP
+.B dump_unused
+Dump unused blocks which contain non-null bytes.
+.TP
+.BI ea_get " [-f outfile]|[-xVC] [-r] filespec attr_name"
+Retrieve the value of the extended attribute
+.I attr_name
+in the file
+.I filespec
+and write it either to stdout or to \fIoutfile\fR.
+.TP
+.BI ea_list " filespec
+List the extended attributes associated with the file
+.I filespec
+to standard output.
+.TP
+.BI ea_set " [-f infile] [-r] filespec attr_name attr_value
+Set the value of the extended attribute
+.I attr_name
+in the file
+.I filespec
+to the string value
+.I attr_value
+or read it from \fIinfile\fR.
+.TP
+.BI ea_rm " filespec attr_names...
+Remove the extended attribute
+.I attr_name
+from the file \fIfilespec\fR.
+.TP
+.BI expand_dir " filespec"
+Expand the directory
+.IR filespec .
+.TP
+.BI fallocate " filespec start_block [end_block]
+Allocate and map uninitialized blocks into \fIfilespec\fR between
+logical block \fIstart_block\fR and \fIend_block\fR, inclusive. If
+\fIend_block\fR is not supplied, this function maps until it runs out
+of free disk blocks or the maximum file size is reached. Existing
+mappings are left alone.
+.TP
+.BI feature " [fs_feature] [-fs_feature] ..."
+Set or clear various file system features in the superblock. After setting
+or clearing any file system features that were requested, print the current
+state of the file system feature set.
+.TP
+.BI filefrag " [-dvr] filespec"
+Print the number of contiguous extents in
+.IR filespec .
+If
+.I filespec
+is a directory and the
+.I -d
+option is not specified,
+.I filefrag
+will print the number of contiguous extents for each file in
+the directory. The
+.I -v
+option will cause
+.I filefrag
+print a tabular listing of the contiguous extents in the
+file. The
+.I -r
+option will cause
+.I filefrag
+to do a recursive listing of the directory.
+.TP
+.BI find_free_block " [count [goal]]"
+Find the first
+.I count
+free blocks, starting from
+.I goal
+and allocate it. Also available as
+.BR ffb .
+.TP
+.BI find_free_inode " [dir [mode]]"
+Find a free inode and allocate it. If present,
+.I dir
+specifies the inode number of the directory
+which the inode is to be located. The second
+optional argument
+.I mode
+specifies the permissions of the new inode. (If the directory bit is set
+on the mode, the allocation routine will function differently.) Also
+available as
+.BR ffi .
+.TP
+.BI freeb " block [count]"
+Mark the block number
+.I block
+as not allocated.
+If the optional argument
+.I count
+is present, then
+.I count
+blocks starting at block number
+.I block
+will be marked as not allocated.
+.TP
+.BI freefrag " [-c chunk_kb]"
+Report free space fragmentation on the currently open file system.
+If the
+.I \-c
+option is specified then the filefrag command will print how many free
+chunks of size
+.I chunk_kb
+can be found in the file system. The chunk size must be a power of two
+and be larger than the file system block size.
+.TP
+.BI freei " filespec [num]"
+Free the inode specified by
+.IR filespec .
+If
+.I num
+is specified, also clear num-1 inodes after the specified inode.
+.TP
+.BI get_quota " quota_type id"
+Display quota information for given quota type (user, group, or project) and ID.
+.TP
+.B help
+Print a list of commands understood by
+.BR debugfs .
+.TP
+.BI htree_dump " filespec"
+Dump the hash-indexed directory
+.IR filespec ,
+showing its tree structure.
+.TP
+.BI icheck " block ..."
+Print a listing of the inodes which use the one or more blocks specified
+on the command line.
+.TP
+.BI inode_dump " [-b]|[-e]|[-x] filespec"
+Print the contents of the inode data structure in hex and ASCII format.
+The
+.I \-b
+option causes the command to only dump the contents of the
+.B i_blocks
+array. The
+.I \-e
+option causes the command to only dump the contents of the extra inode
+space, which is used to store in-line extended attributes. The
+.I \-x
+option causes the command to dump the extra inode space interpreted and
+extended attributes. This is useful to debug corrupted inodes
+containing extended attributes.
+.TP
+.BI imap " filespec"
+Print the location of the inode data structure (in the inode table)
+of the inode
+.IR filespec .
+.TP
+.BI init_filesys " device blocksize"
+Create an ext2 file system on
+.I device
+with device size
+.IR blocksize .
+Note that this does not fully initialize all of the data structures;
+to do this, use the
+.BR mke2fs (8)
+program. This is just a call to the low-level library, which sets up
+the superblock and block descriptors.
+.TP
+.BI journal_close
+Close the open journal.
+.TP
+.BI journal_open " [-c] [-v ver] [-f ext_jnl]
+Opens the journal for reading and writing. Journal checksumming can
+be enabled by supplying \fI-c\fR; checksum formats 2 and 3 can be
+selected with the \fI-v\fR option. An external journal can be loaded
+from \fIext_jnl\fR.
+.TP
+.BI journal_run
+Replay all transactions in the open journal.
+.TP
+.BI journal_write " [-b blocks] [-r revoke] [-c] file
+Write a transaction to the open journal. The list of blocks to write
+should be supplied as a comma-separated list in \fIblocks\fR; the
+blocks themselves should be readable from \fIfile\fR. A list of
+blocks to revoke can be supplied as a comma-separated list in
+\fIrevoke\fR. By default, a commit record is written at the end; the
+\fI-c\fR switch writes an uncommitted transaction.
+.TP
+.BI kill_file " filespec"
+Deallocate the inode
+.I filespec
+and its blocks. Note that this does not remove any directory
+entries (if any) to this inode. See the
+.BR rm (1)
+command if you wish to unlink a file.
+.TP
+.BI lcd " directory"
+Change the current working directory of the
+.B debugfs
+process to
+.I directory
+on the native file system.
+.TP
+.BI list_quota " quota_type"
+Display quota information for given quota type (user, group, or project).
+.TP
+.BI ln " filespec dest_file"
+Create a link named
+.I dest_file
+which is a hard link to
+.IR filespec .
+Note this does not adjust the inode reference counts.
+.TP
+.BI logdump " [-acsOS] [-b block] [-n num_trans ] [-i filespec] [-f journal_file] [output_file]"
+Dump the contents of the ext3 journal. By default, dump the journal inode as
+specified in the superblock. However, this can be overridden with the
+.I \-i
+option, which dumps the journal from the internal inode given by
+.IR filespec .
+A regular file containing journal data can be specified using the
+.I \-f
+option. Finally, the
+.I \-s
+option utilizes the backup information in the superblock to locate the
+journal.
+.IP
+The
+.I \-S
+option causes
+.B logdump
+to print the contents of the journal superblock.
+.IP
+The
+.I \-a
+option causes the
+.B logdump
+to print the contents of all of the descriptor blocks.
+The
+.I \-b
+option causes
+.B logdump
+to print all journal records that refer to the specified block.
+The
+.I \-c
+option will print out the contents of all of the data blocks selected by
+the
+.I \-a
+and
+.I \-b
+options.
+.IP
+The
+.I \-O
+option causes logdump to display old (checkpointed) journal entries.
+This can be used to try to track down journal problems even after the
+journal has been replayed.
+.IP
+The
+.I \-n
+option causes
+.B logdump
+to continue past a journal block which is missing a magic number.
+Instead, it will stop only when the entire log is printed or after
+.I num_trans
+transactions.
+.TP
+.BI ls " [-l] [-c] [-d] [-p] [-r] filespec"
+Print a listing of the files in the directory
+.IR filespec .
+The
+.I \-c
+flag causes directory block checksums (if present) to be displayed.
+The
+.I \-d
+flag will list deleted entries in the directory.
+The
+.I \-l
+flag will list files using a more verbose format.
+The
+.I \-p
+flag will list the files in a format which is more easily parsable by
+scripts, as well as making it more clear when there are spaces or other
+non-printing characters at the end of filenames.
+The
+.I \-r
+flag will force the printing of the filename, even if it is encrypted.
+.TP
+.BI list_deleted_inodes " [limit]"
+List deleted inodes, optionally limited to those deleted within
+.I limit
+seconds ago. Also available as
+.BR lsdel .
+.IP
+This command was useful for recovering from accidental file deletions
+for ext2 file systems. Unfortunately, it is not useful for this purpose
+if the files were deleted using ext3 or ext4, since the inode's
+data blocks are no longer available after the inode is released.
+.TP
+.BI modify_inode " filespec"
+Modify the contents of the inode structure in the inode
+.IR filespec .
+Also available as
+.BR mi .
+.TP
+.BI mkdir " filespec"
+Make a directory.
+.TP
+.BI mknod " filespec [p|[[c|b] major minor]]"
+Create a special device file (a named pipe, character or block device).
+If a character or block device is to be made, the
+.I major
+and
+.I minor
+device numbers must be specified.
+.TP
+.BI ncheck " [-c] inode_num ..."
+Take the requested list of inode numbers, and print a listing of pathnames
+to those inodes. The
+.I -c
+flag will enable checking the file type information in the directory
+entry to make sure it matches the inode's type.
+.TP
+.BI open " [-weficD] [-b blocksize] [-d image_filename] [-s superblock] [-z undo_file] device"
+Open a file system for editing. The
+.I -f
+flag forces the file system to be opened even if there are some unknown
+or incompatible file system features which would normally
+prevent the file system from being opened. The
+.I -e
+flag causes the file system to be opened in exclusive mode. The
+.IR -b ", " -c ", " -d ", " -i ", " -s ", " -w ", and " -D
+options behave the same as the command-line options to
+.BR debugfs .
+.TP
+.BI punch " filespec start_blk [end_blk]"
+Delete the blocks in the inode ranging from
+.I start_blk
+to
+.IR end_blk .
+If
+.I end_blk
+is omitted then this command will function as a truncate command; that
+is, all of the blocks starting at
+.I start_blk
+through to the end of the file will be deallocated.
+.TP
+.BI symlink " filespec target"
+Make a symbolic link.
+.TP
+.B pwd
+Print the current working directory.
+.TP
+.B quit
+Quit
+.B debugfs
+.TP
+.BI rdump " directory[...] destination"
+Recursively dump
+.IR directory ,
+or multiple
+.IR directories ,
+and all its contents (including regular files, symbolic links, and other
+directories) into the named
+.IR destination ,
+which should be an existing directory on the native file system.
+.TP
+.BI rm " pathname"
+Unlink
+.IR pathname .
+If this causes the inode pointed to by
+.I pathname
+to have no other references, deallocate the file. This command functions
+as the unlink() system call.
+.I
+.TP
+.BI rmdir " filespec"
+Remove the directory
+.IR filespec .
+.TP
+.BI setb " block [count]"
+Mark the block number
+.I block
+as allocated.
+If the optional argument
+.I count
+is present, then
+.I count
+blocks starting at block number
+.I block
+will be marked as allocated.
+.TP
+.BI set_block_group " bgnum field value"
+Modify the block group descriptor specified by
+.I bgnum
+so that the block group descriptor field
+.I field
+has value
+.IR value .
+Also available as
+.BR set_bg .
+.TP
+.BI set_current_time " time"
+Set current time in seconds since Unix epoch to use when setting file system
+fields.
+.TP
+.BI seti " filespec [num]"
+Mark inode
+.I filespec
+as in use in the inode bitmap. If
+.I num
+is specified, also set num-1 inodes after the specified inode.
+.TP
+.BI set_inode_field " filespec field value"
+Modify the inode specified by
+.I filespec
+so that the inode field
+.I field
+has value
+.I value.
+The list of valid inode fields which can be set via this command
+can be displayed by using the command:
+.B set_inode_field -l
+Also available as
+.BR sif .
+.TP
+.BI set_mmp_value " field value"
+Modify the multiple-mount protection (MMP) data so that the MMP field
+.I field
+has value
+.I value.
+The list of valid MMP fields which can be set via this command
+can be displayed by using the command:
+.B set_mmp_value -l
+Also available as
+.BR smmp .
+.TP
+.BI set_super_value " field value"
+Set the superblock field
+.I field
+to
+.I value.
+The list of valid superblock fields which can be set via this command
+can be displayed by using the command:
+.B set_super_value -l
+Also available as
+.BR ssv .
+.TP
+.B show_debugfs_params
+Display
+.B debugfs
+parameters such as information about currently opened file system.
+.TP
+.BI show_super_stats " [-h]"
+List the contents of the super block and the block group descriptors. If the
+.I -h
+flag is given, only print out the superblock contents. Also available as
+.BR stats .
+.TP
+.BI stat " filespec"
+Display the contents of the inode structure of the inode
+.IR filespec .
+.TP
+.B supported_features
+Display file system features supported by this version of
+.BR debugfs .
+.TP
+.BI testb " block [count]"
+Test if the block number
+.I block
+is marked as allocated in the block bitmap.
+If the optional argument
+.I count
+is present, then
+.I count
+blocks starting at block number
+.I block
+will be tested.
+.TP
+.BI testi " filespec"
+Test if the inode
+.I filespec
+is marked as allocated in the inode bitmap.
+.TP
+.BI undel " <inode_number> [pathname]"
+Undelete the specified inode number (which must be surrounded by angle
+brackets) so that it and its blocks are marked in use, and optionally
+link the recovered inode to the specified pathname. The
+.B e2fsck
+command should always be run after using the
+.B undel
+command to recover deleted files.
+.IP
+Note that if you are recovering a large number of deleted files, linking
+the inode to a directory may require the directory to be expanded, which
+could allocate a block that had been used by one of the
+yet-to-be-undeleted files. So it is safer to undelete all of the
+inodes without specifying a destination pathname, and then in a separate
+pass, use the debugfs
+.B link
+command to link the inode to the destination pathname, or use
+.B e2fsck
+to check the file system and link all of the recovered inodes to the
+lost+found directory.
+.TP
+.BI unlink " pathname"
+Remove the link specified by
+.I pathname
+to an inode. Note this does not adjust the inode reference counts.
+.TP
+.BI write " source_file out_file"
+Copy the contents of
+.I source_file
+into a newly-created file in the file system named
+.IR out_file .
+.TP
+.BI zap_block " [-f filespec] [-o offset] [-l length] [-p pattern] block_num"
+Overwrite the block specified by
+.I block_num
+with zero (NUL) bytes, or if
+.I -p
+is given use the byte specified by
+.IR pattern .
+If
+.I -f
+is given then
+.I block_num
+is relative to the start of the file given by
+.IR filespec .
+The
+.I -o
+and
+.I -l
+options limit the range of bytes to zap to the specified
+.I offset
+and
+.I length
+relative to the start of the block.
+.TP
+.BI zap_block " [-f filespec] [-b bit] block_num"
+Bit-flip portions of the physical
+.IR block_num .
+If
+.I -f
+is given, then
+.I block_num
+is a logical block relative to the start of
+.IR filespec .
+.SH ENVIRONMENT VARIABLES
+.TP
+.B DEBUGFS_PAGER, PAGER
+The
+.B debugfs
+program always pipes the output of the some commands through a
+pager program. These commands include:
+.IR show_super_stats " (" stats ),
+.IR list_directory " (" ls ),
+.IR show_inode_info " (" stat ),
+.IR list_deleted_inodes " (" lsdel ),
+and
+.IR htree_dump .
+The specific pager can explicitly specified by the
+.B DEBUGFS_PAGER
+environment variable, and if it is not set, by the
+.B PAGER
+environment variable.
+.IP
+Note that since a pager is always used, the
+.BR less (1)
+pager is not particularly appropriate, since it clears the screen before
+displaying the output of the command and clears the output the screen
+when the pager is exited. Many users prefer to use the
+.BR less (1)
+pager for most purposes, which is why the
+.B DEBUGFS_PAGER
+environment variable is available to override the more general
+.B PAGER
+environment variable.
+.SH AUTHOR
+.B debugfs
+was written by Theodore Ts'o <tytso@mit.edu>.
+.SH SEE ALSO
+.BR dumpe2fs (8),
+.BR tune2fs (8),
+.BR e2fsck (8),
+.BR mke2fs (8),
+.BR ext4 (5)
diff --git a/debugfs/debugfs.c b/debugfs/debugfs.c
new file mode 100644
index 0000000..9b6321d
--- /dev/null
+++ b/debugfs/debugfs.c
@@ -0,0 +1,2682 @@
+/*
+ * debugfs.c --- a program which allows you to attach an ext2fs
+ * filesystem and play with it.
+ *
+ * Copyright (C) 1993 Theodore Ts'o. This file may be redistributed
+ * under the terms of the GNU Public License.
+ *
+ * Modifications by Robert Sanders <gt8134b@prism.gatech.edu>
+ */
+
+#include "config.h"
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <ctype.h>
+#include <string.h>
+#include <time.h>
+#include <libgen.h>
+#ifdef HAVE_GETOPT_H
+#include <getopt.h>
+#else
+extern int optind;
+extern char *optarg;
+#endif
+#ifdef HAVE_ERRNO_H
+#include <errno.h>
+#endif
+#include <fcntl.h>
+#ifdef HAVE_SYS_SYSMACROS_H
+#include <sys/sysmacros.h>
+#endif
+
+#include "debugfs.h"
+#include "uuid/uuid.h"
+#include "e2p/e2p.h"
+
+#include <ext2fs/ext2_ext_attr.h>
+
+#include "../version.h"
+#include "jfs_user.h"
+#include "support/plausible.h"
+
+#ifndef BUFSIZ
+#define BUFSIZ 8192
+#endif
+
+#ifdef CONFIG_JBD_DEBUG /* Enabled by configure --enable-jbd-debug */
+int journal_enable_debug = -1;
+#endif
+
+/*
+ * There must be only one definition if we're hooking in extra commands or
+ * changing default prompt. Use -DSKIP_GLOBDEF for that.
+ */
+#ifndef SKIP_GLOBDEFS
+ss_request_table *extra_cmds;
+const char *debug_prog_name;
+#endif
+int ss_sci_idx;
+
+ext2_filsys current_fs;
+quota_ctx_t current_qctx;
+ext2_ino_t root, cwd;
+int no_copy_xattrs;
+
+static int debugfs_setup_tdb(const char *device_name, char *undo_file,
+ io_manager *io_ptr)
+{
+ errcode_t retval = ENOMEM;
+ const char *tdb_dir = NULL;
+ char *tdb_file = NULL;
+ char *dev_name, *tmp_name;
+
+ /* (re)open a specific undo file */
+ if (undo_file && undo_file[0] != 0) {
+ retval = set_undo_io_backing_manager(*io_ptr);
+ if (retval)
+ goto err;
+ *io_ptr = undo_io_manager;
+ retval = set_undo_io_backup_file(undo_file);
+ if (retval)
+ goto err;
+ printf("Overwriting existing filesystem; this can be undone "
+ "using the command:\n"
+ " e2undo %s %s\n\n",
+ undo_file, device_name);
+ return retval;
+ }
+
+ /*
+ * Configuration via a conf file would be
+ * nice
+ */
+ tdb_dir = ss_safe_getenv("E2FSPROGS_UNDO_DIR");
+ if (!tdb_dir)
+ tdb_dir = "/var/lib/e2fsprogs";
+
+ if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) ||
+ access(tdb_dir, W_OK))
+ return 0;
+
+ tmp_name = strdup(device_name);
+ if (!tmp_name)
+ goto errout;
+ dev_name = basename(tmp_name);
+ tdb_file = malloc(strlen(tdb_dir) + 9 + strlen(dev_name) + 7 + 1);
+ if (!tdb_file) {
+ free(tmp_name);
+ goto errout;
+ }
+ sprintf(tdb_file, "%s/debugfs-%s.e2undo", tdb_dir, dev_name);
+ free(tmp_name);
+
+ if ((unlink(tdb_file) < 0) && (errno != ENOENT)) {
+ retval = errno;
+ com_err("debugfs", retval,
+ "while trying to delete %s", tdb_file);
+ goto errout;
+ }
+
+ retval = set_undo_io_backing_manager(*io_ptr);
+ if (retval)
+ goto errout;
+ *io_ptr = undo_io_manager;
+ retval = set_undo_io_backup_file(tdb_file);
+ if (retval)
+ goto errout;
+ printf("Overwriting existing filesystem; this can be undone "
+ "using the command:\n"
+ " e2undo %s %s\n\n", tdb_file, device_name);
+
+ free(tdb_file);
+ return 0;
+errout:
+ free(tdb_file);
+err:
+ com_err("debugfs", retval, "while trying to setup undo file\n");
+ return retval;
+}
+
+static void open_filesystem(char *device, int open_flags, blk64_t superblock,
+ blk64_t blocksize, int catastrophic,
+ char *data_filename, char *undo_file)
+{
+ int retval;
+ io_channel data_io = 0;
+ io_manager io_ptr = unix_io_manager;
+
+ if (superblock != 0 && blocksize == 0) {
+ com_err(device, 0, "if you specify the superblock, you must also specify the block size");
+ current_fs = NULL;
+ return;
+ }
+
+ if (data_filename) {
+ if ((open_flags & EXT2_FLAG_IMAGE_FILE) == 0) {
+ com_err(device, 0,
+ "The -d option is only valid when reading an e2image file");
+ current_fs = NULL;
+ return;
+ }
+ retval = unix_io_manager->open(data_filename, 0, &data_io);
+ if (retval) {
+ com_err(data_filename, 0, "while opening data source");
+ current_fs = NULL;
+ return;
+ }
+ }
+
+ if (catastrophic)
+ open_flags |= EXT2_FLAG_SKIP_MMP | EXT2_FLAG_IGNORE_SB_ERRORS;
+
+ if (undo_file) {
+ retval = debugfs_setup_tdb(device, undo_file, &io_ptr);
+ if (retval)
+ exit(1);
+ }
+
+try_open_again:
+ retval = ext2fs_open(device, open_flags, superblock, blocksize,
+ io_ptr, &current_fs);
+ if (retval && (retval == EXT2_ET_SB_CSUM_INVALID) &&
+ !(open_flags & EXT2_FLAG_IGNORE_CSUM_ERRORS)) {
+ open_flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
+ printf("Checksum errors in superblock! Retrying...\n");
+ goto try_open_again;
+ }
+ if (retval) {
+ com_err(debug_prog_name, retval,
+ "while trying to open %s", device);
+ if (retval == EXT2_ET_BAD_MAGIC)
+ check_plausibility(device, CHECK_FS_EXIST, NULL);
+ current_fs = NULL;
+ return;
+ }
+ current_fs->default_bitmap_type = EXT2FS_BMAP64_RBTREE;
+
+ if (!catastrophic) {
+ retval = ext2fs_read_bitmaps(current_fs);
+ if (retval) {
+ com_err(device, retval,
+ "while reading allocation bitmaps");
+ goto errout;
+ }
+ }
+
+ if (data_io) {
+ retval = ext2fs_set_data_io(current_fs, data_io);
+ if (retval) {
+ com_err(device, retval,
+ "while setting data source");
+ goto errout;
+ }
+ }
+
+ root = cwd = EXT2_ROOT_INO;
+ return;
+
+errout:
+ retval = ext2fs_close_free(&current_fs);
+ if (retval)
+ com_err(device, retval, "while trying to close filesystem");
+}
+
+void do_open_filesys(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ int c, err;
+ int catastrophic = 0;
+ blk64_t superblock = 0;
+ blk64_t blocksize = 0;
+ int open_flags = EXT2_FLAG_SOFTSUPP_FEATURES | EXT2_FLAG_64BITS |
+ EXT2_FLAG_THREADS;
+ char *data_filename = 0;
+ char *undo_file = NULL;
+
+ reset_getopt();
+ while ((c = getopt(argc, argv, "iwfecb:s:d:Dz:")) != EOF) {
+ switch (c) {
+ case 'i':
+ open_flags |= EXT2_FLAG_IMAGE_FILE;
+ break;
+ case 'w':
+#ifdef READ_ONLY
+ goto print_usage;
+#else
+ open_flags |= EXT2_FLAG_RW;
+#endif /* READ_ONLY */
+ break;
+ case 'f':
+ open_flags |= EXT2_FLAG_FORCE;
+ break;
+ case 'e':
+ open_flags |= EXT2_FLAG_EXCLUSIVE;
+ break;
+ case 'c':
+ catastrophic = 1;
+ break;
+ case 'd':
+ data_filename = optarg;
+ break;
+ case 'D':
+ open_flags |= EXT2_FLAG_DIRECT_IO;
+ break;
+ case 'b':
+ blocksize = parse_ulong(optarg, argv[0],
+ "block size", &err);
+ if (err)
+ return;
+ break;
+ case 's':
+ err = strtoblk(argv[0], optarg,
+ "superblock block number", &superblock);
+ if (err)
+ return;
+ break;
+ case 'z':
+#ifdef READ_ONLY
+ goto print_usage;
+#else
+ undo_file = optarg;
+#endif
+ break;
+ default:
+ goto print_usage;
+ }
+ }
+ if (optind != argc-1) {
+ goto print_usage;
+ }
+ if (check_fs_not_open(argv[0]))
+ return;
+ open_filesystem(argv[optind], open_flags,
+ superblock, blocksize, catastrophic,
+ data_filename, undo_file);
+ return;
+
+print_usage:
+ fprintf(stderr, "%s: Usage: open [-s superblock] [-b blocksize] "
+#ifdef READ_ONLY
+ "[-d image_filename] [-z undo_file] [-c] [-i] [-f] [-e] [-D] "
+#else
+ "[-d image_filename] [-c] [-i] [-f] [-e] [-D] [-w] "
+#endif
+ "<device>\n", argv[0]);
+}
+
+void do_lcd(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ if (argc != 2) {
+ com_err(argv[0], 0, "Usage: %s %s", argv[0], "<native dir>");
+ return;
+ }
+
+ if (chdir(argv[1]) == -1) {
+ com_err(argv[0], errno,
+ "while trying to change native directory to %s",
+ argv[1]);
+ return;
+ }
+}
+
+static void close_filesystem(NOARGS)
+{
+ int retval;
+
+ if (current_fs->flags & EXT2_FLAG_IB_DIRTY) {
+ retval = ext2fs_write_inode_bitmap(current_fs);
+ if (retval)
+ com_err("ext2fs_write_inode_bitmap", retval, 0);
+ }
+ if (current_fs->flags & EXT2_FLAG_BB_DIRTY) {
+ retval = ext2fs_write_block_bitmap(current_fs);
+ if (retval)
+ com_err("ext2fs_write_block_bitmap", retval, 0);
+ }
+ if (current_qctx)
+ quota_release_context(&current_qctx);
+ retval = ext2fs_close_free(&current_fs);
+ if (retval)
+ com_err("ext2fs_close", retval, 0);
+ return;
+}
+
+void do_close_filesys(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ int c;
+
+ if (check_fs_open(argv[0]))
+ return;
+
+ reset_getopt();
+ while ((c = getopt (argc, argv, "a")) != EOF) {
+ switch (c) {
+ case 'a':
+ current_fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
+ break;
+ default:
+ goto print_usage;
+ }
+ }
+
+ if (argc > optind) {
+ print_usage:
+ com_err(0, 0, "Usage: close_filesys [-a]");
+ return;
+ }
+
+ close_filesystem();
+}
+
+#ifndef READ_ONLY
+void do_init_filesys(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ struct ext2_super_block param;
+ errcode_t retval;
+ int err;
+ blk64_t blocks;
+
+ if (common_args_process(argc, argv, 3, 3, "initialize",
+ "<device> <blocks>", CHECK_FS_NOTOPEN))
+ return;
+
+ memset(&param, 0, sizeof(struct ext2_super_block));
+ err = strtoblk(argv[0], argv[2], "blocks count", &blocks);
+ if (err)
+ return;
+ ext2fs_blocks_count_set(&param, blocks);
+ retval = ext2fs_initialize(argv[1], 0, &param,
+ unix_io_manager, &current_fs);
+ if (retval) {
+ com_err(argv[1], retval, "while initializing filesystem");
+ current_fs = NULL;
+ return;
+ }
+ root = cwd = EXT2_ROOT_INO;
+ return;
+}
+
+static void print_features(struct ext2_super_block * s, FILE *f)
+{
+ int i, j, printed=0;
+ __u32 *mask = &s->s_feature_compat, m;
+
+ fputs("Filesystem features:", f);
+ for (i=0; i <3; i++,mask++) {
+ for (j=0,m=1; j < 32; j++, m<<=1) {
+ if (*mask & m) {
+ fprintf(f, " %s", e2p_feature2string(i, m));
+ printed++;
+ }
+ }
+ }
+ if (printed == 0)
+ fputs("(none)", f);
+ fputs("\n", f);
+}
+#endif /* READ_ONLY */
+
+static void print_bg_opts(ext2_filsys fs, dgrp_t group, int mask,
+ const char *str, int *first, FILE *f)
+{
+ if (ext2fs_bg_flags_test(fs, group, mask)) {
+ if (*first) {
+ fputs(" [", f);
+ *first = 0;
+ } else
+ fputs(", ", f);
+ fputs(str, f);
+ }
+}
+
+void do_show_super_stats(int argc, char *argv[],
+ int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ const char *units ="block";
+ dgrp_t i;
+ FILE *out;
+ int c, header_only = 0;
+ int numdirs = 0, first, gdt_csum;
+
+ reset_getopt();
+ while ((c = getopt (argc, argv, "h")) != EOF) {
+ switch (c) {
+ case 'h':
+ header_only++;
+ break;
+ default:
+ goto print_usage;
+ }
+ }
+ if (optind != argc) {
+ goto print_usage;
+ }
+ if (check_fs_open(argv[0]))
+ return;
+ out = open_pager();
+
+ if (ext2fs_has_feature_bigalloc(current_fs->super))
+ units = "cluster";
+
+ list_super2(current_fs->super, out);
+ if (ext2fs_has_feature_metadata_csum(current_fs->super) &&
+ !ext2fs_superblock_csum_verify(current_fs,
+ current_fs->super)) {
+ __u32 orig_csum = current_fs->super->s_checksum;
+
+ ext2fs_superblock_csum_set(current_fs,
+ current_fs->super);
+ fprintf(out, "Expected Checksum: 0x%08x\n",
+ current_fs->super->s_checksum);
+ current_fs->super->s_checksum = orig_csum;
+ }
+ for (i=0; i < current_fs->group_desc_count; i++)
+ numdirs += ext2fs_bg_used_dirs_count(current_fs, i);
+ fprintf(out, "Directories: %u\n", numdirs);
+
+ if (header_only) {
+ close_pager(out);
+ return;
+ }
+
+ gdt_csum = ext2fs_has_group_desc_csum(current_fs);
+ for (i = 0; i < current_fs->group_desc_count; i++) {
+ fprintf(out, " Group %2d: block bitmap at %llu, "
+ "inode bitmap at %llu, "
+ "inode table at %llu\n"
+ " %u free %s%s, "
+ "%u free %s, "
+ "%u used %s%s", i,
+ (unsigned long long) ext2fs_block_bitmap_loc(current_fs, i),
+ (unsigned long long) ext2fs_inode_bitmap_loc(current_fs, i),
+ (unsigned long long) ext2fs_inode_table_loc(current_fs, i),
+ ext2fs_bg_free_blocks_count(current_fs, i),
+ units,
+ ext2fs_bg_free_blocks_count(current_fs, i) != 1 ?
+ "s" : "",
+ ext2fs_bg_free_inodes_count(current_fs, i),
+ ext2fs_bg_free_inodes_count(current_fs, i) != 1 ?
+ "inodes" : "inode",
+ ext2fs_bg_used_dirs_count(current_fs, i),
+ ext2fs_bg_used_dirs_count(current_fs, i) != 1 ? "directories"
+ : "directory", gdt_csum ? ", " : "\n");
+ if (gdt_csum)
+ fprintf(out, "%u unused %s\n",
+ ext2fs_bg_itable_unused(current_fs, i),
+ ext2fs_bg_itable_unused(current_fs, i) != 1 ?
+ "inodes" : "inode");
+ first = 1;
+ print_bg_opts(current_fs, i, EXT2_BG_INODE_UNINIT, "Inode not init",
+ &first, out);
+ print_bg_opts(current_fs, i, EXT2_BG_BLOCK_UNINIT, "Block not init",
+ &first, out);
+ if (gdt_csum) {
+ fprintf(out, "%sChecksum 0x%04x",
+ first ? " [":", ", ext2fs_bg_checksum(current_fs, i));
+ first = 0;
+ }
+ if (!first)
+ fputs("]\n", out);
+ }
+ close_pager(out);
+ return;
+print_usage:
+ fprintf(stderr, "%s: Usage: show_super_stats [-h]\n", argv[0]);
+}
+
+#ifndef READ_ONLY
+void do_dirty_filesys(int argc EXT2FS_ATTR((unused)),
+ char **argv EXT2FS_ATTR((unused)),
+ int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ if (check_fs_open(argv[0]))
+ return;
+ if (check_fs_read_write(argv[0]))
+ return;
+
+ if (argv[1] && !strcmp(argv[1], "-clean"))
+ current_fs->super->s_state |= EXT2_VALID_FS;
+ else
+ current_fs->super->s_state &= ~EXT2_VALID_FS;
+ ext2fs_mark_super_dirty(current_fs);
+}
+#endif /* READ_ONLY */
+
+struct list_blocks_struct {
+ FILE *f;
+ e2_blkcnt_t total;
+ blk64_t first_block, last_block;
+ e2_blkcnt_t first_bcnt, last_bcnt;
+ e2_blkcnt_t first;
+};
+
+static void finish_range(struct list_blocks_struct *lb)
+{
+ if (lb->first_block == 0)
+ return;
+ if (lb->first)
+ lb->first = 0;
+ else
+ fprintf(lb->f, ", ");
+ if (lb->first_block == lb->last_block)
+ fprintf(lb->f, "(%lld):%llu",
+ (long long)lb->first_bcnt,
+ (unsigned long long) lb->first_block);
+ else
+ fprintf(lb->f, "(%lld-%lld):%llu-%llu",
+ (long long)lb->first_bcnt, (long long)lb->last_bcnt,
+ (unsigned long long) lb->first_block,
+ (unsigned long long) lb->last_block);
+ lb->first_block = 0;
+}
+
+static int list_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)),
+ blk64_t *blocknr, e2_blkcnt_t blockcnt,
+ blk64_t ref_block EXT2FS_ATTR((unused)),
+ int ref_offset EXT2FS_ATTR((unused)),
+ void *private)
+{
+ struct list_blocks_struct *lb = (struct list_blocks_struct *) private;
+
+ lb->total++;
+ if (blockcnt >= 0) {
+ /*
+ * See if we can add on to the existing range (if it exists)
+ */
+ if (lb->first_block &&
+ (lb->last_block+1 == *blocknr) &&
+ (lb->last_bcnt+1 == blockcnt)) {
+ lb->last_block = *blocknr;
+ lb->last_bcnt = blockcnt;
+ return 0;
+ }
+ /*
+ * Start a new range.
+ */
+ finish_range(lb);
+ lb->first_block = lb->last_block = *blocknr;
+ lb->first_bcnt = lb->last_bcnt = blockcnt;
+ return 0;
+ }
+ /*
+ * Not a normal block. Always force a new range.
+ */
+ finish_range(lb);
+ if (lb->first)
+ lb->first = 0;
+ else
+ fprintf(lb->f, ", ");
+ if (blockcnt == -1)
+ fprintf(lb->f, "(IND):%llu", (unsigned long long) *blocknr);
+ else if (blockcnt == -2)
+ fprintf(lb->f, "(DIND):%llu", (unsigned long long) *blocknr);
+ else if (blockcnt == -3)
+ fprintf(lb->f, "(TIND):%llu", (unsigned long long) *blocknr);
+ return 0;
+}
+
+static void internal_dump_inode_extra(FILE *out,
+ const char *prefix EXT2FS_ATTR((unused)),
+ ext2_ino_t inode_num EXT2FS_ATTR((unused)),
+ struct ext2_inode_large *inode)
+{
+ fprintf(out, "Size of extra inode fields: %u\n", inode->i_extra_isize);
+ if (inode->i_extra_isize > EXT2_INODE_SIZE(current_fs->super) -
+ EXT2_GOOD_OLD_INODE_SIZE) {
+ fprintf(stderr, "invalid inode->i_extra_isize (%u)\n",
+ inode->i_extra_isize);
+ return;
+ }
+}
+
+static void dump_blocks(FILE *f, const char *prefix, ext2_ino_t inode)
+{
+ struct list_blocks_struct lb;
+
+ fprintf(f, "%sBLOCKS:\n%s", prefix, prefix);
+ lb.total = 0;
+ lb.first_block = 0;
+ lb.f = f;
+ lb.first = 1;
+ ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
+ list_blocks_proc, (void *)&lb);
+ finish_range(&lb);
+ if (lb.total)
+ fprintf(f, "\n%sTOTAL: %lld\n", prefix, (long long)lb.total);
+ fprintf(f,"\n");
+}
+
+static int int_log10(unsigned long long arg)
+{
+ int l = 0;
+
+ arg = arg / 10;
+ while (arg) {
+ l++;
+ arg = arg / 10;
+ }
+ return l;
+}
+
+#define DUMP_LEAF_EXTENTS 0x01
+#define DUMP_NODE_EXTENTS 0x02
+#define DUMP_EXTENT_TABLE 0x04
+
+static void dump_extents(FILE *f, const char *prefix, ext2_ino_t ino,
+ int flags, int logical_width, int physical_width)
+{
+ ext2_extent_handle_t handle;
+ struct ext2fs_extent extent;
+ struct ext2_extent_info info;
+ int op = EXT2_EXTENT_ROOT;
+ unsigned int printed = 0;
+ errcode_t errcode;
+
+ errcode = ext2fs_extent_open(current_fs, ino, &handle);
+ if (errcode)
+ return;
+
+ if (flags & DUMP_EXTENT_TABLE)
+ fprintf(f, "Level Entries %*s %*s Length Flags\n",
+ (logical_width*2)+3, "Logical",
+ (physical_width*2)+3, "Physical");
+ else
+ fprintf(f, "%sEXTENTS:\n%s", prefix, prefix);
+
+ while (1) {
+ errcode = ext2fs_extent_get(handle, op, &extent);
+
+ if (errcode)
+ break;
+
+ op = EXT2_EXTENT_NEXT;
+
+ if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT)
+ continue;
+
+ if (extent.e_flags & EXT2_EXTENT_FLAGS_LEAF) {
+ if ((flags & DUMP_LEAF_EXTENTS) == 0)
+ continue;
+ } else {
+ if ((flags & DUMP_NODE_EXTENTS) == 0)
+ continue;
+ }
+
+ errcode = ext2fs_extent_get_info(handle, &info);
+ if (errcode)
+ continue;
+
+ if (!(extent.e_flags & EXT2_EXTENT_FLAGS_LEAF)) {
+ if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT)
+ continue;
+
+ if (flags & DUMP_EXTENT_TABLE) {
+ fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu "
+ "%*llu%*s %6u\n",
+ info.curr_level, info.max_depth,
+ info.curr_entry, info.num_entries,
+ logical_width,
+ (unsigned long long) extent.e_lblk,
+ logical_width,
+ (unsigned long long) extent.e_lblk + (extent.e_len - 1),
+ physical_width,
+ (unsigned long long) extent.e_pblk,
+ physical_width+3, "", extent.e_len);
+ continue;
+ }
+
+ fprintf(f, "%s(ETB%d):%llu",
+ printed ? ", " : "", info.curr_level,
+ (unsigned long long) extent.e_pblk);
+ printed = 1;
+ continue;
+ }
+
+ if (flags & DUMP_EXTENT_TABLE) {
+ fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu "
+ "%*llu - %*llu %6u %s\n",
+ info.curr_level, info.max_depth,
+ info.curr_entry, info.num_entries,
+ logical_width,
+ (unsigned long long) extent.e_lblk,
+ logical_width,
+ (unsigned long long) extent.e_lblk + (extent.e_len - 1),
+ physical_width,
+ (unsigned long long) extent.e_pblk,
+ physical_width,
+ (unsigned long long) extent.e_pblk + (extent.e_len - 1),
+ extent.e_len,
+ extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
+ "Uninit" : "");
+ continue;
+ }
+
+ if (extent.e_len == 0)
+ continue;
+ else if (extent.e_len == 1)
+ fprintf(f,
+ "%s(%lld%s):%lld",
+ printed ? ", " : "",
+ (unsigned long long) extent.e_lblk,
+ extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
+ "[u]" : "",
+ (unsigned long long) extent.e_pblk);
+ else
+ fprintf(f,
+ "%s(%lld-%lld%s):%lld-%lld",
+ printed ? ", " : "",
+ (unsigned long long) extent.e_lblk,
+ (unsigned long long) extent.e_lblk + (extent.e_len - 1),
+ extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
+ "[u]" : "",
+ (unsigned long long) extent.e_pblk,
+ (unsigned long long) extent.e_pblk + (extent.e_len - 1));
+ printed = 1;
+ }
+ if (printed)
+ fprintf(f, "\n");
+ ext2fs_extent_free(handle);
+}
+
+static void dump_inline_data(FILE *out, const char *prefix, ext2_ino_t inode_num)
+{
+ errcode_t retval;
+ size_t size;
+
+ retval = ext2fs_inline_data_size(current_fs, inode_num, &size);
+ if (!retval)
+ fprintf(out, "%sSize of inline data: %zu\n", prefix, size);
+}
+
+static void dump_inline_symlink(FILE *out, ext2_ino_t inode_num,
+ struct ext2_inode *inode, const char *prefix)
+{
+ errcode_t retval;
+ char *buf = NULL;
+ size_t size;
+
+ retval = ext2fs_inline_data_size(current_fs, inode_num, &size);
+ if (retval)
+ goto out;
+
+ retval = ext2fs_get_memzero(size + 1, &buf);
+ if (retval)
+ goto out;
+
+ retval = ext2fs_inline_data_get(current_fs, inode_num,
+ inode, buf, &size);
+ if (retval)
+ goto out;
+
+ fprintf(out, "%sFast link dest: \"%.*s\"\n", prefix,
+ (int)size, buf);
+out:
+ if (buf)
+ ext2fs_free_mem(&buf);
+ if (retval)
+ com_err(__func__, retval, "while dumping link destination");
+}
+
+void internal_dump_inode(FILE *out, const char *prefix,
+ ext2_ino_t inode_num, struct ext2_inode *inode,
+ int do_dump_blocks)
+{
+ const char *i_type;
+ char frag, fsize;
+ int os = current_fs->super->s_creator_os;
+ struct ext2_inode_large *large_inode;
+ int is_large_inode = 0;
+
+ if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
+ is_large_inode = 1;
+ large_inode = (struct ext2_inode_large *) inode;
+
+ if (LINUX_S_ISDIR(inode->i_mode)) i_type = "directory";
+ else if (LINUX_S_ISREG(inode->i_mode)) i_type = "regular";
+ else if (LINUX_S_ISLNK(inode->i_mode)) i_type = "symlink";
+ else if (LINUX_S_ISBLK(inode->i_mode)) i_type = "block special";
+ else if (LINUX_S_ISCHR(inode->i_mode)) i_type = "character special";
+ else if (LINUX_S_ISFIFO(inode->i_mode)) i_type = "FIFO";
+ else if (LINUX_S_ISSOCK(inode->i_mode)) i_type = "socket";
+ else i_type = "bad type";
+ fprintf(out, "%sInode: %u Type: %s ", prefix, inode_num, i_type);
+ fprintf(out, "%sMode: 0%03o Flags: 0x%x\n",
+ prefix, inode->i_mode & 07777, inode->i_flags);
+ if (is_large_inode && large_inode->i_extra_isize >= 24) {
+ fprintf(out, "%sGeneration: %u Version: 0x%08x:%08x\n",
+ prefix, inode->i_generation, large_inode->i_version_hi,
+ inode->osd1.linux1.l_i_version);
+ } else {
+ fprintf(out, "%sGeneration: %u Version: 0x%08x\n", prefix,
+ inode->i_generation, inode->osd1.linux1.l_i_version);
+ }
+ fprintf(out, "%sUser: %5d Group: %5d",
+ prefix, inode_uid(*inode), inode_gid(*inode));
+ if (is_large_inode && large_inode->i_extra_isize >= 32)
+ fprintf(out, " Project: %5d", large_inode->i_projid);
+ fputs(" Size: ", out);
+ if (LINUX_S_ISREG(inode->i_mode) || LINUX_S_ISDIR(inode->i_mode))
+ fprintf(out, "%llu\n", (unsigned long long) EXT2_I_SIZE(inode));
+ else
+ fprintf(out, "%u\n", inode->i_size);
+ if (os == EXT2_OS_HURD)
+ fprintf(out,
+ "%sFile ACL: %u Translator: %u\n",
+ prefix,
+ inode->i_file_acl,
+ inode->osd1.hurd1.h_i_translator);
+ else
+ fprintf(out, "%sFile ACL: %llu\n",
+ prefix,
+ inode->i_file_acl | ((long long)
+ (inode->osd2.linux2.l_i_file_acl_high) << 32));
+ if (os != EXT2_OS_HURD)
+ fprintf(out, "%sLinks: %u Blockcount: %llu\n",
+ prefix, inode->i_links_count,
+ (((unsigned long long)
+ inode->osd2.linux2.l_i_blocks_hi << 32)) +
+ inode->i_blocks);
+ else
+ fprintf(out, "%sLinks: %u Blockcount: %u\n",
+ prefix, inode->i_links_count, inode->i_blocks);
+ switch (os) {
+ case EXT2_OS_HURD:
+ frag = inode->osd2.hurd2.h_i_frag;
+ fsize = inode->osd2.hurd2.h_i_fsize;
+ break;
+ default:
+ frag = fsize = 0;
+ }
+ fprintf(out, "%sFragment: Address: %u Number: %u Size: %u\n",
+ prefix, inode->i_faddr, frag, fsize);
+ if (is_large_inode && large_inode->i_extra_isize >= 24) {
+ fprintf(out, "%s ctime: 0x%08x:%08x -- %s", prefix,
+ inode->i_ctime, large_inode->i_ctime_extra,
+ inode_time_to_string(inode->i_ctime,
+ large_inode->i_ctime_extra));
+ fprintf(out, "%s atime: 0x%08x:%08x -- %s", prefix,
+ inode->i_atime, large_inode->i_atime_extra,
+ inode_time_to_string(inode->i_atime,
+ large_inode->i_atime_extra));
+ fprintf(out, "%s mtime: 0x%08x:%08x -- %s", prefix,
+ inode->i_mtime, large_inode->i_mtime_extra,
+ inode_time_to_string(inode->i_mtime,
+ large_inode->i_mtime_extra));
+ fprintf(out, "%scrtime: 0x%08x:%08x -- %s", prefix,
+ large_inode->i_crtime, large_inode->i_crtime_extra,
+ inode_time_to_string(large_inode->i_crtime,
+ large_inode->i_crtime_extra));
+ if (inode->i_dtime)
+ fprintf(out, "%s dtime: 0x%08x:(%08x) -- %s", prefix,
+ large_inode->i_dtime, large_inode->i_ctime_extra,
+ inode_time_to_string(inode->i_dtime,
+ large_inode->i_ctime_extra));
+ } else {
+ fprintf(out, "%sctime: 0x%08x -- %s", prefix, inode->i_ctime,
+ time_to_string((__s32) inode->i_ctime));
+ fprintf(out, "%satime: 0x%08x -- %s", prefix, inode->i_atime,
+ time_to_string((__s32) inode->i_atime));
+ fprintf(out, "%smtime: 0x%08x -- %s", prefix, inode->i_mtime,
+ time_to_string((__s32) inode->i_mtime));
+ if (inode->i_dtime)
+ fprintf(out, "%sdtime: 0x%08x -- %s", prefix,
+ inode->i_dtime,
+ time_to_string((__s32) inode->i_dtime));
+ }
+ if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
+ internal_dump_inode_extra(out, prefix, inode_num,
+ (struct ext2_inode_large *) inode);
+ dump_inode_attributes(out, inode_num);
+ if (ext2fs_has_feature_metadata_csum(current_fs->super)) {
+ __u32 crc = inode->i_checksum_lo;
+ if (is_large_inode &&
+ large_inode->i_extra_isize >=
+ (offsetof(struct ext2_inode_large,
+ i_checksum_hi) -
+ EXT2_GOOD_OLD_INODE_SIZE))
+ crc |= ((__u32)large_inode->i_checksum_hi) << 16;
+ fprintf(out, "Inode checksum: 0x%08x\n", crc);
+ }
+
+ if (LINUX_S_ISLNK(inode->i_mode) && ext2fs_is_fast_symlink(inode))
+ fprintf(out, "%sFast link dest: \"%.*s\"\n", prefix,
+ (int)EXT2_I_SIZE(inode), (char *)inode->i_block);
+ else if (LINUX_S_ISLNK(inode->i_mode) &&
+ (inode->i_flags & EXT4_INLINE_DATA_FL))
+ dump_inline_symlink(out, inode_num, inode, prefix);
+ else if (LINUX_S_ISBLK(inode->i_mode) || LINUX_S_ISCHR(inode->i_mode)) {
+ int major, minor;
+ const char *devnote;
+
+ if (inode->i_block[0]) {
+ major = (inode->i_block[0] >> 8) & 255;
+ minor = inode->i_block[0] & 255;
+ devnote = "";
+ } else {
+ major = (inode->i_block[1] & 0xfff00) >> 8;
+ minor = ((inode->i_block[1] & 0xff) |
+ ((inode->i_block[1] >> 12) & 0xfff00));
+ devnote = "(New-style) ";
+ }
+ fprintf(out, "%sDevice major/minor number: %02d:%02d (hex %02x:%02x)\n",
+ devnote, major, minor, major, minor);
+ } else if (do_dump_blocks) {
+ if (inode->i_flags & EXT4_EXTENTS_FL)
+ dump_extents(out, prefix, inode_num,
+ DUMP_LEAF_EXTENTS|DUMP_NODE_EXTENTS, 0, 0);
+ else if (inode->i_flags & EXT4_INLINE_DATA_FL)
+ dump_inline_data(out, prefix, inode_num);
+ else
+ dump_blocks(out, prefix, inode_num);
+ }
+}
+
+static void dump_inode(ext2_ino_t inode_num, struct ext2_inode *inode)
+{
+ FILE *out;
+
+ out = open_pager();
+ internal_dump_inode(out, "", inode_num, inode, 1);
+ close_pager(out);
+}
+
+void do_stat(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ ext2_ino_t inode;
+ struct ext2_inode * inode_buf;
+
+ if (check_fs_open(argv[0]))
+ return;
+
+ inode_buf = (struct ext2_inode *)
+ malloc(EXT2_INODE_SIZE(current_fs->super));
+ if (!inode_buf) {
+ fprintf(stderr, "do_stat: can't allocate buffer\n");
+ return;
+ }
+
+ if (common_inode_args_process(argc, argv, &inode, 0)) {
+ free(inode_buf);
+ return;
+ }
+
+ if (debugfs_read_inode2(inode, inode_buf, argv[0],
+ EXT2_INODE_SIZE(current_fs->super), 0)) {
+ free(inode_buf);
+ return;
+ }
+
+ dump_inode(inode, inode_buf);
+ free(inode_buf);
+ return;
+}
+
+void do_dump_extents(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ struct ext2_inode inode;
+ ext2_ino_t ino;
+ FILE *out;
+ int c, flags = 0;
+ int logical_width;
+ int physical_width;
+
+ reset_getopt();
+ while ((c = getopt(argc, argv, "nl")) != EOF) {
+ switch (c) {
+ case 'n':
+ flags |= DUMP_NODE_EXTENTS;
+ break;
+ case 'l':
+ flags |= DUMP_LEAF_EXTENTS;
+ break;
+ }
+ }
+
+ if (argc != optind + 1) {
+ com_err(0, 0, "Usage: dump_extents [-n] [-l] file");
+ return;
+ }
+
+ if (flags == 0)
+ flags = DUMP_NODE_EXTENTS | DUMP_LEAF_EXTENTS;
+ flags |= DUMP_EXTENT_TABLE;
+
+ if (check_fs_open(argv[0]))
+ return;
+
+ ino = string_to_inode(argv[optind]);
+ if (ino == 0)
+ return;
+
+ if (debugfs_read_inode(ino, &inode, argv[0]))
+ return;
+
+ if ((inode.i_flags & EXT4_EXTENTS_FL) == 0) {
+ fprintf(stderr, "%s: does not uses extent block maps\n",
+ argv[optind]);
+ return;
+ }
+
+ logical_width = int_log10((EXT2_I_SIZE(&inode)+current_fs->blocksize-1)/
+ current_fs->blocksize) + 1;
+ if (logical_width < 5)
+ logical_width = 5;
+ physical_width = int_log10(ext2fs_blocks_count(current_fs->super)) + 1;
+ if (physical_width < 5)
+ physical_width = 5;
+
+ out = open_pager();
+ dump_extents(out, "", ino, flags, logical_width, physical_width);
+ close_pager(out);
+ return;
+}
+
+static int print_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)),
+ blk64_t *blocknr,
+ e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
+ blk64_t ref_block EXT2FS_ATTR((unused)),
+ int ref_offset EXT2FS_ATTR((unused)),
+ void *private EXT2FS_ATTR((unused)))
+{
+ printf("%llu ", (unsigned long long) *blocknr);
+ return 0;
+}
+
+void do_blocks(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ ext2_ino_t inode;
+
+ if (check_fs_open(argv[0]))
+ return;
+
+ if (common_inode_args_process(argc, argv, &inode, 0)) {
+ return;
+ }
+
+ ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
+ print_blocks_proc, NULL);
+ fputc('\n', stdout);
+ return;
+}
+
+void do_chroot(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ ext2_ino_t inode;
+ int retval;
+
+ if (common_inode_args_process(argc, argv, &inode, 0))
+ return;
+
+ retval = ext2fs_check_directory(current_fs, inode);
+ if (retval) {
+ com_err(argv[1], retval, 0);
+ return;
+ }
+ root = inode;
+}
+
+#ifndef READ_ONLY
+void do_clri(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ ext2_ino_t inode;
+ struct ext2_inode inode_buf;
+
+ if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
+ return;
+
+ if (debugfs_read_inode(inode, &inode_buf, argv[0]))
+ return;
+ memset(&inode_buf, 0, sizeof(inode_buf));
+ if (debugfs_write_inode(inode, &inode_buf, argv[0]))
+ return;
+}
+
+void do_freei(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ unsigned int len = 1;
+ int err = 0;
+ ext2_ino_t inode;
+
+ if (common_args_process(argc, argv, 2, 3, argv[0], "<file> [num]",
+ CHECK_FS_RW | CHECK_FS_BITMAPS))
+ return;
+ if (check_fs_read_write(argv[0]))
+ return;
+
+ inode = string_to_inode(argv[1]);
+ if (!inode)
+ return;
+
+ if (argc == 3) {
+ len = parse_ulong(argv[2], argv[0], "length", &err);
+ if (err)
+ return;
+ }
+
+ if (len == 1 &&
+ !ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
+ com_err(argv[0], 0, "Warning: inode already clear");
+ while (len-- > 0)
+ ext2fs_unmark_inode_bitmap2(current_fs->inode_map, inode++);
+ ext2fs_mark_ib_dirty(current_fs);
+}
+
+void do_seti(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ unsigned int len = 1;
+ int err = 0;
+ ext2_ino_t inode;
+
+ if (common_args_process(argc, argv, 2, 3, argv[0], "<file> [num]",
+ CHECK_FS_RW | CHECK_FS_BITMAPS))
+ return;
+ if (check_fs_read_write(argv[0]))
+ return;
+
+ inode = string_to_inode(argv[1]);
+ if (!inode)
+ return;
+
+ if (argc == 3) {
+ len = parse_ulong(argv[2], argv[0], "length", &err);
+ if (err)
+ return;
+ }
+
+ if ((len == 1) &&
+ ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
+ com_err(argv[0], 0, "Warning: inode already set");
+ while (len-- > 0)
+ ext2fs_mark_inode_bitmap2(current_fs->inode_map, inode++);
+ ext2fs_mark_ib_dirty(current_fs);
+}
+#endif /* READ_ONLY */
+
+void do_testi(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ ext2_ino_t inode;
+
+ if (common_inode_args_process(argc, argv, &inode, CHECK_FS_BITMAPS))
+ return;
+
+ if (ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
+ printf("Inode %u is marked in use\n", inode);
+ else
+ printf("Inode %u is not in use\n", inode);
+}
+
+#ifndef READ_ONLY
+void do_freeb(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ blk64_t block;
+ blk64_t count = 1;
+
+ if (common_block_args_process(argc, argv, &block, &count))
+ return;
+ if (check_fs_read_write(argv[0]))
+ return;
+ while (count-- > 0) {
+ if (!ext2fs_test_block_bitmap2(current_fs->block_map,block))
+ com_err(argv[0], 0, "Warning: block %llu already clear",
+ (unsigned long long) block);
+ ext2fs_unmark_block_bitmap2(current_fs->block_map,block);
+ block++;
+ }
+ ext2fs_mark_bb_dirty(current_fs);
+}
+
+void do_setb(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ blk64_t block;
+ blk64_t count = 1;
+
+ if (common_block_args_process(argc, argv, &block, &count))
+ return;
+ if (check_fs_read_write(argv[0]))
+ return;
+ while (count-- > 0) {
+ if (ext2fs_test_block_bitmap2(current_fs->block_map,block))
+ com_err(argv[0], 0, "Warning: block %llu already set",
+ (unsigned long long) block);
+ ext2fs_mark_block_bitmap2(current_fs->block_map,block);
+ block++;
+ }
+ ext2fs_mark_bb_dirty(current_fs);
+}
+#endif /* READ_ONLY */
+
+void do_testb(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ blk64_t block;
+ blk64_t count = 1;
+
+ if (common_block_args_process(argc, argv, &block, &count))
+ return;
+ while (count-- > 0) {
+ if (ext2fs_test_block_bitmap2(current_fs->block_map,block))
+ printf("Block %llu marked in use\n",
+ (unsigned long long) block);
+ else
+ printf("Block %llu not in use\n",
+ (unsigned long long) block);
+ block++;
+ }
+}
+
+#ifndef READ_ONLY
+static void modify_u8(char *com, const char *prompt,
+ const char *format, __u8 *val)
+{
+ char buf[200];
+ unsigned long v;
+ char *tmp;
+
+ sprintf(buf, format, *val);
+ printf("%30s [%s] ", prompt, buf);
+ if (!fgets(buf, sizeof(buf), stdin))
+ return;
+ if (buf[strlen (buf) - 1] == '\n')
+ buf[strlen (buf) - 1] = '\0';
+ if (!buf[0])
+ return;
+ v = strtoul(buf, &tmp, 0);
+ if (*tmp)
+ com_err(com, 0, "Bad value - %s", buf);
+ else
+ *val = v;
+}
+
+static void modify_u16(char *com, const char *prompt,
+ const char *format, __u16 *val)
+{
+ char buf[200];
+ unsigned long v;
+ char *tmp;
+
+ sprintf(buf, format, *val);
+ printf("%30s [%s] ", prompt, buf);
+ if (!fgets(buf, sizeof(buf), stdin))
+ return;
+ if (buf[strlen (buf) - 1] == '\n')
+ buf[strlen (buf) - 1] = '\0';
+ if (!buf[0])
+ return;
+ v = strtoul(buf, &tmp, 0);
+ if (*tmp)
+ com_err(com, 0, "Bad value - %s", buf);
+ else
+ *val = v;
+}
+
+static void modify_u32(char *com, const char *prompt,
+ const char *format, __u32 *val)
+{
+ char buf[200];
+ unsigned long v;
+ char *tmp;
+
+ sprintf(buf, format, *val);
+ printf("%30s [%s] ", prompt, buf);
+ if (!fgets(buf, sizeof(buf), stdin))
+ return;
+ if (buf[strlen (buf) - 1] == '\n')
+ buf[strlen (buf) - 1] = '\0';
+ if (!buf[0])
+ return;
+ v = strtoul(buf, &tmp, 0);
+ if (*tmp)
+ com_err(com, 0, "Bad value - %s", buf);
+ else
+ *val = v;
+}
+
+
+void do_modify_inode(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ struct ext2_inode inode;
+ ext2_ino_t inode_num;
+ int i;
+ unsigned char *frag, *fsize;
+ char buf[80];
+ int os;
+ const char *hex_format = "0x%x";
+ const char *octal_format = "0%o";
+ const char *decimal_format = "%d";
+ const char *unsignedlong_format = "%lu";
+
+ if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
+ return;
+
+ os = current_fs->super->s_creator_os;
+
+ if (debugfs_read_inode(inode_num, &inode, argv[1]))
+ return;
+
+ modify_u16(argv[0], "Mode", octal_format, &inode.i_mode);
+ modify_u16(argv[0], "User ID", decimal_format, &inode.i_uid);
+ modify_u16(argv[0], "Group ID", decimal_format, &inode.i_gid);
+ modify_u32(argv[0], "Size", unsignedlong_format, &inode.i_size);
+ modify_u32(argv[0], "Creation time", decimal_format, &inode.i_ctime);
+ modify_u32(argv[0], "Modification time", decimal_format, &inode.i_mtime);
+ modify_u32(argv[0], "Access time", decimal_format, &inode.i_atime);
+ modify_u32(argv[0], "Deletion time", decimal_format, &inode.i_dtime);
+ modify_u16(argv[0], "Link count", decimal_format, &inode.i_links_count);
+ if (os == EXT2_OS_LINUX)
+ modify_u16(argv[0], "Block count high", unsignedlong_format,
+ &inode.osd2.linux2.l_i_blocks_hi);
+ modify_u32(argv[0], "Block count", unsignedlong_format, &inode.i_blocks);
+ modify_u32(argv[0], "File flags", hex_format, &inode.i_flags);
+ modify_u32(argv[0], "Generation", hex_format, &inode.i_generation);
+#if 0
+ modify_u32(argv[0], "Reserved1", decimal_format, &inode.i_reserved1);
+#endif
+ modify_u32(argv[0], "File acl", decimal_format, &inode.i_file_acl);
+
+ modify_u32(argv[0], "High 32bits of size", decimal_format,
+ &inode.i_size_high);
+
+ if (os == EXT2_OS_HURD)
+ modify_u32(argv[0], "Translator Block",
+ decimal_format, &inode.osd1.hurd1.h_i_translator);
+
+ modify_u32(argv[0], "Fragment address", decimal_format, &inode.i_faddr);
+ switch (os) {
+ case EXT2_OS_HURD:
+ frag = &inode.osd2.hurd2.h_i_frag;
+ fsize = &inode.osd2.hurd2.h_i_fsize;
+ break;
+ default:
+ frag = fsize = 0;
+ }
+ if (frag)
+ modify_u8(argv[0], "Fragment number", decimal_format, frag);
+ if (fsize)
+ modify_u8(argv[0], "Fragment size", decimal_format, fsize);
+
+ for (i=0; i < EXT2_NDIR_BLOCKS; i++) {
+ sprintf(buf, "Direct Block #%u", i);
+ modify_u32(argv[0], buf, decimal_format, &inode.i_block[i]);
+ }
+ modify_u32(argv[0], "Indirect Block", decimal_format,
+ &inode.i_block[EXT2_IND_BLOCK]);
+ modify_u32(argv[0], "Double Indirect Block", decimal_format,
+ &inode.i_block[EXT2_DIND_BLOCK]);
+ modify_u32(argv[0], "Triple Indirect Block", decimal_format,
+ &inode.i_block[EXT2_TIND_BLOCK]);
+ if (debugfs_write_inode(inode_num, &inode, argv[1]))
+ return;
+}
+#endif /* READ_ONLY */
+
+void do_change_working_dir(int argc, char *argv[],
+ int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ ext2_ino_t inode;
+ int retval;
+
+ if (common_inode_args_process(argc, argv, &inode, 0))
+ return;
+
+ retval = ext2fs_check_directory(current_fs, inode);
+ if (retval) {
+ com_err(argv[1], retval, 0);
+ return;
+ }
+ cwd = inode;
+ return;
+}
+
+void do_print_working_directory(int argc, char *argv[],
+ int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ int retval;
+ char *pathname = NULL;
+
+ if (common_args_process(argc, argv, 1, 1,
+ "print_working_directory", "", 0))
+ return;
+
+ retval = ext2fs_get_pathname(current_fs, cwd, 0, &pathname);
+ if (retval) {
+ com_err(argv[0], retval,
+ "while trying to get pathname of cwd");
+ }
+ printf("[pwd] INODE: %6u PATH: %s\n",
+ cwd, pathname ? pathname : "NULL");
+ if (pathname) {
+ free(pathname);
+ pathname = NULL;
+ }
+ retval = ext2fs_get_pathname(current_fs, root, 0, &pathname);
+ if (retval) {
+ com_err(argv[0], retval,
+ "while trying to get pathname of root");
+ }
+ printf("[root] INODE: %6u PATH: %s\n",
+ root, pathname ? pathname : "NULL");
+ if (pathname) {
+ free(pathname);
+ pathname = NULL;
+ }
+ return;
+}
+
+#ifndef READ_ONLY
+static void make_link(char *sourcename, char *destname)
+{
+ ext2_ino_t ino;
+ struct ext2_inode inode;
+ int retval;
+ ext2_ino_t dir;
+ char *dest, *cp, *base_name;
+
+ /*
+ * Get the source inode
+ */
+ ino = string_to_inode(sourcename);
+ if (!ino)
+ return;
+ base_name = strrchr(sourcename, '/');
+ if (base_name)
+ base_name++;
+ else
+ base_name = sourcename;
+ /*
+ * Figure out the destination. First see if it exists and is
+ * a directory.
+ */
+ if (! (retval=ext2fs_namei(current_fs, root, cwd, destname, &dir)))
+ dest = base_name;
+ else {
+ /*
+ * OK, it doesn't exist. See if it is
+ * '<dir>/basename' or 'basename'
+ */
+ cp = strrchr(destname, '/');
+ if (cp) {
+ *cp = 0;
+ dir = string_to_inode(destname);
+ if (!dir)
+ return;
+ dest = cp+1;
+ } else {
+ dir = cwd;
+ dest = destname;
+ }
+ }
+
+ if (debugfs_read_inode(ino, &inode, sourcename))
+ return;
+
+ retval = ext2fs_link(current_fs, dir, dest, ino,
+ ext2_file_type(inode.i_mode));
+ if (retval)
+ com_err("make_link", retval, 0);
+ return;
+}
+
+
+void do_link(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ if (common_args_process(argc, argv, 3, 3, "link",
+ "<source file> <dest_name>", CHECK_FS_RW))
+ return;
+
+ make_link(argv[1], argv[2]);
+}
+
+static int mark_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
+ e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
+ blk64_t ref_block EXT2FS_ATTR((unused)),
+ int ref_offset EXT2FS_ATTR((unused)),
+ void *private EXT2FS_ATTR((unused)))
+{
+ blk64_t block;
+
+ block = *blocknr;
+ ext2fs_block_alloc_stats2(fs, block, +1);
+ return 0;
+}
+
+void do_undel(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ ext2_ino_t ino;
+ struct ext2_inode inode;
+
+ if (common_args_process(argc, argv, 2, 3, "undelete",
+ "<inode_num> [dest_name]",
+ CHECK_FS_RW | CHECK_FS_BITMAPS))
+ return;
+
+ ino = string_to_inode(argv[1]);
+ if (!ino)
+ return;
+
+ if (debugfs_read_inode(ino, &inode, argv[1]))
+ return;
+
+ if (ext2fs_test_inode_bitmap2(current_fs->inode_map, ino)) {
+ com_err(argv[1], 0, "Inode is not marked as deleted");
+ return;
+ }
+
+ /*
+ * XXX this function doesn't handle changing the links count on the
+ * parent directory when undeleting a directory.
+ */
+ inode.i_links_count = LINUX_S_ISDIR(inode.i_mode) ? 2 : 1;
+ inode.i_dtime = 0;
+
+ if (debugfs_write_inode(ino, &inode, argv[0]))
+ return;
+
+ ext2fs_block_iterate3(current_fs, ino, BLOCK_FLAG_READ_ONLY, NULL,
+ mark_blocks_proc, NULL);
+
+ ext2fs_inode_alloc_stats2(current_fs, ino, +1, 0);
+
+ if (argc > 2)
+ make_link(argv[1], argv[2]);
+}
+
+static void unlink_file_by_name(char *filename)
+{
+ int retval;
+ ext2_ino_t dir;
+ char *base_name;
+
+ base_name = strrchr(filename, '/');
+ if (base_name) {
+ *base_name++ = '\0';
+ dir = string_to_inode(filename);
+ if (!dir)
+ return;
+ } else {
+ dir = cwd;
+ base_name = filename;
+ }
+ retval = ext2fs_unlink(current_fs, dir, base_name, 0, 0);
+ if (retval)
+ com_err("unlink_file_by_name", retval, 0);
+ return;
+}
+
+void do_unlink(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ if (common_args_process(argc, argv, 2, 2, "link",
+ "<pathname>", CHECK_FS_RW))
+ return;
+
+ unlink_file_by_name(argv[1]);
+}
+
+void do_copy_inode(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ ext2_ino_t src_ino, dest_ino;
+ unsigned char buf[4096];
+
+ if (common_args_process(argc, argv, 3, 3, "copy_inode",
+ "<source file> <dest_name>", CHECK_FS_RW))
+ return;
+
+ src_ino = string_to_inode(argv[1]);
+ if (!src_ino)
+ return;
+
+ dest_ino = string_to_inode(argv[2]);
+ if (!dest_ino)
+ return;
+
+ if (debugfs_read_inode2(src_ino, (struct ext2_inode *) buf,
+ argv[0], sizeof(buf), 0))
+ return;
+
+ if (debugfs_write_inode2(dest_ino, (struct ext2_inode *) buf,
+ argv[0], sizeof(buf), 0))
+ return;
+}
+
+#endif /* READ_ONLY */
+
+void do_find_free_block(int argc, char *argv[],
+ int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ blk64_t free_blk, goal, first_free = 0;
+ int count;
+ errcode_t retval;
+ char *tmp;
+
+ if ((argc > 3) || (argc==2 && *argv[1] == '?')) {
+ com_err(argv[0], 0, "Usage: find_free_block [count [goal]]");
+ return;
+ }
+ if (check_fs_open(argv[0]))
+ return;
+
+ if (argc > 1) {
+ count = strtol(argv[1],&tmp,0);
+ if (*tmp) {
+ com_err(argv[0], 0, "Bad count - %s", argv[1]);
+ return;
+ }
+ } else
+ count = 1;
+
+ if (argc > 2) {
+ goal = strtol(argv[2], &tmp, 0);
+ if (*tmp) {
+ com_err(argv[0], 0, "Bad goal - %s", argv[1]);
+ return;
+ }
+ }
+ else
+ goal = current_fs->super->s_first_data_block;
+
+ printf("Free blocks found: ");
+ free_blk = goal - 1;
+ while (count-- > 0) {
+ retval = ext2fs_new_block2(current_fs, free_blk + 1, 0,
+ &free_blk);
+ if (first_free) {
+ if (first_free == free_blk)
+ break;
+ } else
+ first_free = free_blk;
+ if (retval) {
+ com_err("ext2fs_new_block", retval, 0);
+ return;
+ } else
+ printf("%llu ", (unsigned long long) free_blk);
+ }
+ printf("\n");
+}
+
+void do_find_free_inode(int argc, char *argv[],
+ int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ ext2_ino_t free_inode, dir;
+ int mode;
+ int retval;
+ char *tmp;
+
+ if (argc > 3 || (argc>1 && *argv[1] == '?')) {
+ com_err(argv[0], 0, "Usage: find_free_inode [dir [mode]]");
+ return;
+ }
+ if (check_fs_open(argv[0]))
+ return;
+
+ if (argc > 1) {
+ dir = strtol(argv[1], &tmp, 0);
+ if (*tmp) {
+ com_err(argv[0], 0, "Bad dir - %s", argv[1]);
+ return;
+ }
+ }
+ else
+ dir = root;
+ if (argc > 2) {
+ mode = strtol(argv[2], &tmp, 0);
+ if (*tmp) {
+ com_err(argv[0], 0, "Bad mode - %s", argv[2]);
+ return;
+ }
+ } else
+ mode = 010755;
+
+ retval = ext2fs_new_inode(current_fs, dir, mode, 0, &free_inode);
+ if (retval)
+ com_err("ext2fs_new_inode", retval, 0);
+ else
+ printf("Free inode found: %u\n", free_inode);
+}
+
+#ifndef READ_ONLY
+void do_write(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ errcode_t retval;
+
+ if (common_args_process(argc, argv, 3, 3, "write",
+ "<native file> <new file>", CHECK_FS_RW))
+ return;
+
+ retval = do_write_internal(current_fs, cwd, argv[1], argv[2], root);
+ if (retval)
+ com_err(argv[0], retval, 0);
+}
+
+void do_mknod(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ unsigned long major, minor;
+ errcode_t retval;
+ int nr;
+ struct stat st;
+
+ if (check_fs_open(argv[0]))
+ return;
+ if (argc < 3 || argv[2][1]) {
+ usage:
+ com_err(argv[0], 0, "Usage: mknod <name> [p| [c|b] <major> <minor>]");
+ return;
+ }
+
+ minor = major = 0;
+ switch (argv[2][0]) {
+ case 'p':
+ st.st_mode = S_IFIFO;
+ nr = 3;
+ break;
+ case 'c':
+ st.st_mode = S_IFCHR;
+ nr = 5;
+ break;
+ case 'b':
+ st.st_mode = S_IFBLK;
+ nr = 5;
+ break;
+ default:
+ nr = 0;
+ }
+
+ if (nr == 5) {
+ major = strtoul(argv[3], argv+3, 0);
+ minor = strtoul(argv[4], argv+4, 0);
+ if (major > 65535 || minor > 65535 || argv[3][0] || argv[4][0])
+ nr = 0;
+ }
+
+ if (argc != nr)
+ goto usage;
+
+ st.st_rdev = makedev(major, minor);
+ retval = do_mknod_internal(current_fs, cwd, argv[1],
+ st.st_mode, st.st_rdev);
+ if (retval)
+ com_err(argv[0], retval, 0);
+}
+
+void do_mkdir(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ errcode_t retval;
+
+ if (common_args_process(argc, argv, 2, 2, "mkdir",
+ "<filename>", CHECK_FS_RW))
+ return;
+
+ retval = do_mkdir_internal(current_fs, cwd, argv[1], root);
+ if (retval)
+ com_err(argv[0], retval, 0);
+
+}
+
+static int release_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
+ e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
+ blk64_t ref_block EXT2FS_ATTR((unused)),
+ int ref_offset EXT2FS_ATTR((unused)),
+ void *private)
+{
+ blk64_t block = *blocknr;
+ blk64_t *last_cluster = (blk64_t *)private;
+ blk64_t cluster = EXT2FS_B2C(fs, block);
+
+ if (cluster == *last_cluster)
+ return 0;
+
+ *last_cluster = cluster;
+
+ ext2fs_block_alloc_stats2(fs, block, -1);
+ return 0;
+}
+
+static void kill_file_by_inode(ext2_ino_t inode)
+{
+ struct ext2_inode inode_buf;
+
+ if (debugfs_read_inode(inode, &inode_buf, 0))
+ return;
+ inode_buf.i_dtime = current_fs->now ? current_fs->now : time(0);
+ if (debugfs_write_inode(inode, &inode_buf, 0))
+ return;
+ if (ext2fs_inode_has_valid_blocks2(current_fs, &inode_buf)) {
+ blk64_t last_cluster = 0;
+ ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY,
+ NULL, release_blocks_proc, &last_cluster);
+ }
+ printf("\n");
+ ext2fs_inode_alloc_stats2(current_fs, inode, -1,
+ LINUX_S_ISDIR(inode_buf.i_mode));
+}
+
+
+void do_kill_file(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ ext2_ino_t inode_num;
+
+ if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
+ return;
+
+ kill_file_by_inode(inode_num);
+}
+
+void do_rm(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ int retval;
+ ext2_ino_t inode_num;
+ struct ext2_inode inode;
+
+ if (common_args_process(argc, argv, 2, 2, "rm",
+ "<filename>", CHECK_FS_RW))
+ return;
+
+ retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
+ if (retval) {
+ com_err(argv[0], retval, "while trying to resolve filename");
+ return;
+ }
+
+ if (debugfs_read_inode(inode_num, &inode, argv[0]))
+ return;
+
+ if (LINUX_S_ISDIR(inode.i_mode)) {
+ com_err(argv[0], 0, "file is a directory");
+ return;
+ }
+
+ --inode.i_links_count;
+ if (debugfs_write_inode(inode_num, &inode, argv[0]))
+ return;
+
+ unlink_file_by_name(argv[1]);
+ if (inode.i_links_count == 0)
+ kill_file_by_inode(inode_num);
+}
+
+struct rd_struct {
+ ext2_ino_t parent;
+ int empty;
+};
+
+static int rmdir_proc(ext2_ino_t dir EXT2FS_ATTR((unused)),
+ int entry EXT2FS_ATTR((unused)),
+ struct ext2_dir_entry *dirent,
+ int offset EXT2FS_ATTR((unused)),
+ int blocksize EXT2FS_ATTR((unused)),
+ char *buf EXT2FS_ATTR((unused)),
+ void *private)
+{
+ struct rd_struct *rds = (struct rd_struct *) private;
+
+ if (dirent->inode == 0)
+ return 0;
+ if ((ext2fs_dirent_name_len(dirent) == 1) && (dirent->name[0] == '.'))
+ return 0;
+ if ((ext2fs_dirent_name_len(dirent) == 2) && (dirent->name[0] == '.') &&
+ (dirent->name[1] == '.')) {
+ rds->parent = dirent->inode;
+ return 0;
+ }
+ rds->empty = 0;
+ return 0;
+}
+
+void do_rmdir(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ int retval;
+ ext2_ino_t inode_num;
+ struct ext2_inode inode;
+ struct rd_struct rds;
+
+ if (common_args_process(argc, argv, 2, 2, "rmdir",
+ "<filename>", CHECK_FS_RW))
+ return;
+
+ retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
+ if (retval) {
+ com_err(argv[0], retval, "while trying to resolve filename");
+ return;
+ }
+
+ if (debugfs_read_inode(inode_num, &inode, argv[0]))
+ return;
+
+ if (!LINUX_S_ISDIR(inode.i_mode)) {
+ com_err(argv[0], 0, "file is not a directory");
+ return;
+ }
+
+ rds.parent = 0;
+ rds.empty = 1;
+
+ retval = ext2fs_dir_iterate2(current_fs, inode_num, 0,
+ 0, rmdir_proc, &rds);
+ if (retval) {
+ com_err(argv[0], retval, "while iterating over directory");
+ return;
+ }
+ if (rds.empty == 0) {
+ com_err(argv[0], 0, "directory not empty");
+ return;
+ }
+
+ inode.i_links_count = 0;
+ if (debugfs_write_inode(inode_num, &inode, argv[0]))
+ return;
+
+ unlink_file_by_name(argv[1]);
+ kill_file_by_inode(inode_num);
+
+ if (rds.parent) {
+ if (debugfs_read_inode(rds.parent, &inode, argv[0]))
+ return;
+ if (inode.i_links_count > 1)
+ inode.i_links_count--;
+ if (debugfs_write_inode(rds.parent, &inode, argv[0]))
+ return;
+ }
+}
+#endif /* READ_ONLY */
+
+void do_show_debugfs_params(int argc EXT2FS_ATTR((unused)),
+ char *argv[] EXT2FS_ATTR((unused)),
+ int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ if (current_fs)
+ printf("Open mode: read-%s\n",
+ current_fs->flags & EXT2_FLAG_RW ? "write" : "only");
+ printf("Filesystem in use: %s\n",
+ current_fs ? current_fs->device_name : "--none--");
+}
+
+#ifndef READ_ONLY
+void do_expand_dir(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ ext2_ino_t inode;
+ int retval;
+
+ if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
+ return;
+
+ retval = ext2fs_expand_dir(current_fs, inode);
+ if (retval)
+ com_err("ext2fs_expand_dir", retval, 0);
+ return;
+}
+
+void do_features(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ int i;
+
+ if (check_fs_open(argv[0]))
+ return;
+
+ if ((argc != 1) && check_fs_read_write(argv[0]))
+ return;
+ for (i=1; i < argc; i++) {
+ if (e2p_edit_feature(argv[i],
+ &current_fs->super->s_feature_compat, 0))
+ com_err(argv[0], 0, "Unknown feature: %s\n",
+ argv[i]);
+ else
+ ext2fs_mark_super_dirty(current_fs);
+ }
+ print_features(current_fs->super, stdout);
+}
+#endif /* READ_ONLY */
+
+void do_bmap(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ ext2_ino_t ino;
+ blk64_t blk, pblk = 0;
+ int c, err, flags = 0, ret_flags = 0;
+ errcode_t errcode;
+
+ if (check_fs_open(argv[0]))
+ return;
+
+ reset_getopt();
+ while ((c = getopt (argc, argv, "a")) != EOF) {
+ switch (c) {
+ case 'a':
+ flags |= BMAP_ALLOC;
+ break;
+ default:
+ goto print_usage;
+ }
+ }
+
+ if (argc <= optind+1) {
+ print_usage:
+ com_err(0, 0,
+ "Usage: bmap [-a] <file> logical_blk [physical_blk]");
+ return;
+ }
+
+ ino = string_to_inode(argv[optind++]);
+ if (!ino)
+ return;
+ err = strtoblk(argv[0], argv[optind++], "logical block", &blk);
+ if (err)
+ return;
+
+ if (argc > optind+1)
+ goto print_usage;
+
+ if (argc == optind+1) {
+ err = strtoblk(argv[0], argv[optind++],
+ "physical block", &pblk);
+ if (err)
+ return;
+ if (flags & BMAP_ALLOC) {
+ com_err(0, 0, "Can't set and allocate a block");
+ return;
+ }
+ flags |= BMAP_SET;
+ }
+
+ errcode = ext2fs_bmap2(current_fs, ino, 0, 0, flags, blk,
+ &ret_flags, &pblk);
+ if (errcode) {
+ com_err(argv[0], errcode,
+ "while mapping logical block %llu\n",
+ (unsigned long long) blk);
+ return;
+ }
+ printf("%llu", (unsigned long long) pblk);
+ if (ret_flags & BMAP_RET_UNINIT)
+ fputs(" (uninit)", stdout);
+ fputc('\n', stdout);
+}
+
+void do_imap(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ ext2_ino_t ino;
+ unsigned long group, block, block_nr, offset;
+
+ if (common_args_process(argc, argv, 2, 2, argv[0],
+ "<file>", 0))
+ return;
+ ino = string_to_inode(argv[1]);
+ if (!ino)
+ return;
+
+ group = (ino - 1) / EXT2_INODES_PER_GROUP(current_fs->super);
+ offset = ((ino - 1) % EXT2_INODES_PER_GROUP(current_fs->super)) *
+ EXT2_INODE_SIZE(current_fs->super);
+ block = offset >> EXT2_BLOCK_SIZE_BITS(current_fs->super);
+ if (!ext2fs_inode_table_loc(current_fs, (unsigned)group)) {
+ com_err(argv[0], 0, "Inode table for group %lu is missing\n",
+ group);
+ return;
+ }
+ block_nr = ext2fs_inode_table_loc(current_fs, (unsigned)group) +
+ block;
+ offset &= (EXT2_BLOCK_SIZE(current_fs->super) - 1);
+
+ printf("Inode %u is part of block group %lu\n"
+ "\tlocated at block %lu, offset 0x%04lx\n", ino, group,
+ block_nr, offset);
+
+}
+
+void do_idump(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ struct ext2_inode_large *inode;
+ ext2_ino_t ino;
+ unsigned char *buf;
+ errcode_t err;
+ unsigned int isize, size, offset = 0;
+ int c, mode = 0;
+
+ reset_getopt();
+ while ((c = getopt (argc, argv, "bex")) != EOF) {
+ if (mode || c == '?') {
+ com_err(argv[0], 0,
+ "Usage: inode_dump [-b]|[-e] <file>");
+ return;
+ }
+ mode = c;
+ }
+ if (optind != argc-1)
+ return;
+
+ if (check_fs_open(argv[0]))
+ return;
+
+ ino = string_to_inode(argv[optind]);
+ if (!ino)
+ return;
+
+ isize = EXT2_INODE_SIZE(current_fs->super);
+ err = ext2fs_get_mem(isize, &buf);
+ if (err) {
+ com_err(argv[0], err, "while allocating memory");
+ return;
+ }
+
+ err = ext2fs_read_inode_full(current_fs, ino,
+ (struct ext2_inode *)buf, isize);
+ if (err) {
+ com_err(argv[0], err, "while reading inode %u", ino);
+ goto err;
+ }
+
+ inode = (struct ext2_inode_large *) buf;
+ size = isize;
+ switch (mode) {
+ case 'b':
+ offset = ((char *) (&inode->i_block)) - ((char *) buf);
+ size = sizeof(inode->i_block);
+ break;
+ case 'x':
+ case 'e':
+ if (size <= EXT2_GOOD_OLD_INODE_SIZE) {
+ com_err(argv[0], 0, "No extra space in inode");
+ goto err;
+ }
+ offset = EXT2_GOOD_OLD_INODE_SIZE + inode->i_extra_isize;
+ if (offset > size)
+ goto err;
+ size -= offset;
+ break;
+ }
+ if (mode == 'x')
+ raw_inode_xattr_dump(stdout, buf + offset, size);
+ else
+ do_byte_hexdump(stdout, buf + offset, size);
+err:
+ ext2fs_free_mem(&buf);
+}
+
+#ifndef READ_ONLY
+void do_set_current_time(int argc, char *argv[],
+ int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ __s64 now;
+
+ if (common_args_process(argc, argv, 2, 2, argv[0],
+ "<time>", 0))
+ return;
+
+ now = string_to_time(argv[1]);
+ if (now == -1) {
+ com_err(argv[0], 0, "Couldn't parse argument as a time: %s\n",
+ argv[1]);
+ return;
+
+ } else {
+ printf("Setting current time to %s\n", time_to_string(now));
+ current_fs->now = now;
+ }
+}
+#endif /* READ_ONLY */
+
+static int find_supp_feature(__u32 *supp, int feature_type, char *name)
+{
+ int compat, bit, ret;
+ unsigned int feature_mask;
+
+ if (name) {
+ if (feature_type == E2P_FS_FEATURE)
+ ret = e2p_string2feature(name, &compat, &feature_mask);
+ else
+ ret = e2p_jrnl_string2feature(name, &compat,
+ &feature_mask);
+ if (ret)
+ return ret;
+
+ if (!(supp[compat] & feature_mask))
+ return 1;
+ } else {
+ for (compat = 0; compat < 3; compat++) {
+ for (bit = 0, feature_mask = 1; bit < 32;
+ bit++, feature_mask <<= 1) {
+ if (supp[compat] & feature_mask) {
+ if (feature_type == E2P_FS_FEATURE)
+ fprintf(stdout, " %s",
+ e2p_feature2string(compat,
+ feature_mask));
+ else
+ fprintf(stdout, " %s",
+ e2p_jrnl_feature2string(compat,
+ feature_mask));
+ }
+ }
+ }
+ fprintf(stdout, "\n");
+ }
+
+ return 0;
+}
+
+void do_supported_features(int argc, char *argv[],
+ int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ int ret;
+ __u32 supp[3] = { EXT2_LIB_FEATURE_COMPAT_SUPP,
+ EXT2_LIB_FEATURE_INCOMPAT_SUPP,
+ EXT2_LIB_FEATURE_RO_COMPAT_SUPP };
+ __u32 jrnl_supp[3] = { JBD2_KNOWN_COMPAT_FEATURES,
+ JBD2_KNOWN_INCOMPAT_FEATURES,
+ JBD2_KNOWN_ROCOMPAT_FEATURES };
+
+ if (argc > 1) {
+ ret = find_supp_feature(supp, E2P_FS_FEATURE, argv[1]);
+ if (ret) {
+ ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE,
+ argv[1]);
+ }
+ if (ret)
+ com_err(argv[0], 0, "Unknown feature: %s\n", argv[1]);
+ else
+ fprintf(stdout, "Supported feature: %s\n", argv[1]);
+ } else {
+ fprintf(stdout, "Supported features:");
+ ret = find_supp_feature(supp, E2P_FS_FEATURE, NULL);
+ ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE, NULL);
+ }
+}
+
+#ifndef READ_ONLY
+void do_punch(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ ext2_ino_t ino;
+ blk64_t start, end;
+ int err;
+ errcode_t errcode;
+
+ if (common_args_process(argc, argv, 3, 4, argv[0],
+ "<file> start_blk [end_blk]",
+ CHECK_FS_RW | CHECK_FS_BITMAPS))
+ return;
+
+ ino = string_to_inode(argv[1]);
+ if (!ino)
+ return;
+ err = strtoblk(argv[0], argv[2], "logical block", &start);
+ if (err)
+ return;
+ if (argc == 4) {
+ err = strtoblk(argv[0], argv[3], "logical block", &end);
+ if (err)
+ return;
+ } else
+ end = ~0;
+
+ errcode = ext2fs_punch(current_fs, ino, 0, 0, start, end);
+
+ if (errcode) {
+ com_err(argv[0], errcode,
+ "while truncating inode %u from %llu to %llu\n", ino,
+ (unsigned long long) start, (unsigned long long) end);
+ return;
+ }
+}
+
+void do_fallocate(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ ext2_ino_t ino;
+ blk64_t start, end;
+ int err;
+ errcode_t errcode;
+
+ if (common_args_process(argc, argv, 3, 4, argv[0],
+ "<file> start_blk [end_blk]",
+ CHECK_FS_RW | CHECK_FS_BITMAPS))
+ return;
+
+ ino = string_to_inode(argv[1]);
+ if (!ino)
+ return;
+ err = strtoblk(argv[0], argv[2], "logical block", &start);
+ if (err)
+ return;
+ if (argc == 4) {
+ err = strtoblk(argv[0], argv[3], "logical block", &end);
+ if (err)
+ return;
+ } else
+ end = ~0;
+
+ errcode = ext2fs_fallocate(current_fs, EXT2_FALLOCATE_INIT_BEYOND_EOF,
+ ino, NULL, ~0ULL, start, end - start + 1);
+
+ if (errcode) {
+ com_err(argv[0], errcode,
+ "while fallocating inode %u from %llu to %llu\n", ino,
+ (unsigned long long) start, (unsigned long long) end);
+ return;
+ }
+}
+
+void do_symlink(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ errcode_t retval;
+
+ if (common_args_process(argc, argv, 3, 3, "symlink",
+ "<filename> <target>", CHECK_FS_RW))
+ return;
+
+ retval = do_symlink_internal(current_fs, cwd, argv[1], argv[2], root);
+ if (retval)
+ com_err(argv[0], retval, 0);
+
+}
+#endif /* READ_ONLY */
+
+#if CONFIG_MMP
+void do_dump_mmp(int argc EXT2FS_ATTR((unused)), char *argv[],
+ int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ struct mmp_struct *mmp_s;
+ unsigned long long mmp_block;
+ time_t t;
+ errcode_t retval = 0;
+
+ if (check_fs_open(argv[0]))
+ return;
+
+ if (argc > 1) {
+ char *end = NULL;
+ mmp_block = strtoull(argv[1], &end, 0);
+ if (end == argv[0] || mmp_block == 0) {
+ fprintf(stderr, "%s: invalid MMP block '%s' given\n",
+ argv[0], argv[1]);
+ return;
+ }
+ } else {
+ mmp_block = current_fs->super->s_mmp_block;
+ }
+
+ if (mmp_block == 0) {
+ fprintf(stderr, "%s: MMP: not active on this filesystem.\n",
+ argv[0]);
+ return;
+ }
+
+ if (current_fs->mmp_buf == NULL) {
+ retval = ext2fs_get_mem(current_fs->blocksize,
+ &current_fs->mmp_buf);
+ if (retval) {
+ com_err(argv[0], retval, "allocating MMP buffer.\n");
+ return;
+ }
+ }
+
+ mmp_s = current_fs->mmp_buf;
+
+ retval = ext2fs_mmp_read(current_fs, mmp_block, current_fs->mmp_buf);
+ if (retval) {
+ com_err(argv[0], retval, "reading MMP block %llu.\n",
+ (unsigned long long) mmp_block);
+ return;
+ }
+
+ t = mmp_s->mmp_time;
+ fprintf(stdout, "block_number: %llu\n",
+ (unsigned long long) current_fs->super->s_mmp_block);
+ fprintf(stdout, "update_interval: %d\n",
+ current_fs->super->s_mmp_update_interval);
+ fprintf(stdout, "check_interval: %d\n", mmp_s->mmp_check_interval);
+ fprintf(stdout, "sequence: %08x\n", mmp_s->mmp_seq);
+ fprintf(stdout, "time: %llu -- %s",
+ (unsigned long long) mmp_s->mmp_time, ctime(&t));
+ fprintf(stdout, "node_name: %.*s\n",
+ EXT2_LEN_STR(mmp_s->mmp_nodename));
+ fprintf(stdout, "device_name: %.*s\n",
+ EXT2_LEN_STR(mmp_s->mmp_bdevname));
+ fprintf(stdout, "magic: 0x%x\n", mmp_s->mmp_magic);
+ fprintf(stdout, "checksum: 0x%08x\n", mmp_s->mmp_checksum);
+}
+#else
+void do_dump_mmp(int argc EXT2FS_ATTR((unused)),
+ char *argv[] EXT2FS_ATTR((unused)),
+ int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ fprintf(stdout, "MMP is unsupported, please recompile with "
+ "--enable-mmp\n");
+}
+#endif
+
+static int source_file(const char *cmd_file, int ss_idx)
+{
+ FILE *f;
+ char buf[BUFSIZ];
+ char *cp;
+ int exit_status = 0;
+ int retval;
+
+ if (strcmp(cmd_file, "-") == 0)
+ f = stdin;
+ else {
+ f = fopen(cmd_file, "r");
+ if (!f) {
+ perror(cmd_file);
+ exit(1);
+ }
+ }
+ fflush(stdout);
+ fflush(stderr);
+ setbuf(stdout, NULL);
+ setbuf(stderr, NULL);
+ while (!feof(f)) {
+ if (fgets(buf, sizeof(buf), f) == NULL)
+ break;
+ if (buf[0] == '#') {
+ printf("%s", buf);
+ continue;
+ }
+ cp = strchr(buf, '\n');
+ if (cp)
+ *cp = 0;
+ cp = strchr(buf, '\r');
+ if (cp)
+ *cp = 0;
+ printf("debugfs: %s\n", buf);
+ retval = ss_execute_line(ss_idx, buf);
+ if (retval) {
+ ss_perror(ss_idx, retval, buf);
+ exit_status++;
+ }
+ }
+ if (f != stdin)
+ fclose(f);
+ return exit_status;
+}
+
+int main(int argc, char **argv)
+{
+ int retval;
+ const char *usage =
+ "Usage: %s [-b blocksize] [-s superblock] [-f cmd_file] "
+ "[-R request] [-d data_source_device] [-i] [-n] [-D] [-V] ["
+#ifndef READ_ONLY
+ "[-w] [-z undo_file] "
+#endif
+ "[-c]] [device]";
+ int c;
+ int open_flags = EXT2_FLAG_SOFTSUPP_FEATURES |
+ EXT2_FLAG_64BITS | EXT2_FLAG_THREADS;
+ char *request = 0;
+ int exit_status = 0;
+ char *cmd_file = 0;
+ blk64_t superblock = 0;
+ blk64_t blocksize = 0;
+ int catastrophic = 0;
+ char *data_filename = 0;
+#ifdef READ_ONLY
+ const char *opt_string = "nicR:f:b:s:Vd:D";
+#else
+ const char *opt_string = "niwcR:f:b:s:Vd:Dz:";
+#endif
+ char *undo_file = NULL;
+#ifdef CONFIG_JBD_DEBUG
+ char *jbd_debug;
+#endif
+
+ if (debug_prog_name == 0)
+#ifdef READ_ONLY
+ debug_prog_name = "rdebugfs";
+#else
+ debug_prog_name = "debugfs";
+#endif
+ add_error_table(&et_ext2_error_table);
+ fprintf (stderr, "%s %s (%s)\n", debug_prog_name,
+ E2FSPROGS_VERSION, E2FSPROGS_DATE);
+
+#ifdef CONFIG_JBD_DEBUG
+ jbd_debug = ss_safe_getenv("DEBUGFS_JBD_DEBUG");
+ if (jbd_debug) {
+ int res = sscanf(jbd_debug, "%d", &journal_enable_debug);
+
+ if (res != 1) {
+ fprintf(stderr,
+ "DEBUGFS_JBD_DEBUG \"%s\" not an integer\n\n",
+ jbd_debug);
+ exit(1);
+ }
+ }
+#endif
+ while ((c = getopt (argc, argv, opt_string)) != EOF) {
+ switch (c) {
+ case 'R':
+ request = optarg;
+ break;
+ case 'f':
+ cmd_file = optarg;
+ break;
+ case 'd':
+ data_filename = optarg;
+ break;
+ case 'i':
+ open_flags |= EXT2_FLAG_IMAGE_FILE;
+ break;
+ case 'n':
+ open_flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
+ break;
+#ifndef READ_ONLY
+ case 'w':
+ open_flags |= EXT2_FLAG_RW;
+ break;
+#endif
+ case 'D':
+ open_flags |= EXT2_FLAG_DIRECT_IO;
+ break;
+ case 'b':
+ blocksize = parse_ulong(optarg, argv[0],
+ "block size", 0);
+ break;
+ case 's':
+ retval = strtoblk(argv[0], optarg,
+ "superblock block number",
+ &superblock);
+ if (retval)
+ return 1;
+ break;
+ case 'c':
+ catastrophic = 1;
+ break;
+ case 'V':
+ /* Print version number and exit */
+ fprintf(stderr, "\tUsing %s\n",
+ error_message(EXT2_ET_BASE));
+ exit(0);
+#ifndef READ_ONLY
+ case 'z':
+ undo_file = optarg;
+ break;
+#endif
+ default:
+ com_err(argv[0], 0, usage, debug_prog_name);
+ return 1;
+ }
+ }
+ if (optind < argc)
+ open_filesystem(argv[optind], open_flags,
+ superblock, blocksize, catastrophic,
+ data_filename, undo_file);
+
+ ss_sci_idx = ss_create_invocation(debug_prog_name, "0.0", (char *) NULL,
+ &debug_cmds, &retval);
+ if (retval) {
+ ss_perror(ss_sci_idx, retval, "creating invocation");
+ exit(1);
+ }
+ ss_get_readline(ss_sci_idx);
+
+ (void) ss_add_request_table(ss_sci_idx, &ss_std_requests, 1, &retval);
+ if (retval) {
+ ss_perror(ss_sci_idx, retval, "adding standard requests");
+ exit (1);
+ }
+ if (extra_cmds)
+ ss_add_request_table(ss_sci_idx, extra_cmds, 1, &retval);
+ if (retval) {
+ ss_perror(ss_sci_idx, retval, "adding extra requests");
+ exit (1);
+ }
+ if (request) {
+ retval = 0;
+ retval = ss_execute_line(ss_sci_idx, request);
+ if (retval) {
+ ss_perror(ss_sci_idx, retval, request);
+ exit_status++;
+ }
+ } else if (cmd_file) {
+ exit_status = source_file(cmd_file, ss_sci_idx);
+ } else {
+ ss_listen(ss_sci_idx);
+ }
+
+ ss_delete_invocation(ss_sci_idx);
+
+ if (current_fs)
+ close_filesystem();
+
+ remove_error_table(&et_ext2_error_table);
+ return exit_status;
+}
diff --git a/debugfs/debugfs.h b/debugfs/debugfs.h
new file mode 100644
index 0000000..39bc024
--- /dev/null
+++ b/debugfs/debugfs.h
@@ -0,0 +1,210 @@
+/*
+ * debugfs.h --- header file for the debugfs program
+ */
+
+#include "ss/ss.h"
+#include "ext2fs/ext2_fs.h"
+#include "ext2fs/ext2fs.h"
+#include "../misc/create_inode.h"
+#include "support/quotaio.h"
+
+#ifdef __STDC__
+#define NOARGS void
+#else
+#define NOARGS
+#define const
+#endif
+
+/*
+ * Flags used by the common argument processing functions
+ */
+#define CHECK_FS_RW 0x0001
+#define CHECK_FS_BITMAPS 0x0002
+#define CHECK_FS_NOTOPEN 0x0004
+
+extern ext2_filsys current_fs;
+extern quota_ctx_t current_qctx;
+extern ext2_ino_t root, cwd;
+extern int ss_sci_idx;
+extern ss_request_table debug_cmds, extent_cmds;
+
+extern void reset_getopt(void);
+extern FILE *open_pager(void);
+extern void close_pager(FILE *stream);
+extern int check_fs_open(char *name);
+extern int check_fs_not_open(char *name);
+extern int check_fs_read_write(char *name);
+extern int check_fs_bitmaps(char *name);
+extern ext2_ino_t string_to_inode(char *str);
+extern char *inode_time_to_string(__u32 xtime, __u32 xtime_extra);
+extern char *time_to_string(__s64);
+extern __s64 string_to_time(const char *);
+extern unsigned long parse_ulong(const char *str, const char *cmd,
+ const char *descr, int *err);
+extern unsigned long long parse_ulonglong(const char *str, const char *cmd,
+ const char *descr, int *err);
+extern int strtoblk(const char *cmd, const char *str, const char *errmsg,
+ blk64_t *ret);
+extern int common_args_process(int argc, char *argv[], int min_argc,
+ int max_argc, const char *cmd,
+ const char *usage, int flags);
+extern int common_inode_args_process(int argc, char *argv[],
+ ext2_ino_t *inode, int flags);
+extern int common_block_args_process(int argc, char *argv[],
+ blk64_t *block, blk64_t *count);
+extern int debugfs_read_inode(ext2_ino_t ino, struct ext2_inode * inode,
+ const char *cmd);
+extern int debugfs_read_inode2(ext2_ino_t ino, struct ext2_inode * inode,
+ const char *cmd, int bufsize, int flags);
+extern int debugfs_write_inode(ext2_ino_t ino, struct ext2_inode * inode,
+ const char *cmd);
+extern int debugfs_write_inode2(ext2_ino_t ino, struct ext2_inode * inode,
+ const char *cmd, int bufsize, int flags);
+extern int debugfs_write_new_inode(ext2_ino_t ino, struct ext2_inode * inode,
+ const char *cmd);
+extern int ext2_file_type(unsigned int mode);
+
+/* ss command functions */
+
+/* dump.c */
+extern void do_dump(int argc, char **argv, int sci_idx, void *infop);
+extern void do_cat(int argc, char **argv, int sci_idx, void *infop);
+extern void do_rdump(int argc, char **argv, int sci_idx, void *infop);
+
+/* extent_inode.c */
+extern void do_extent_open(int argc, char **argv, int sci_idx, void *infop);
+extern void do_extent_close(int argc, char **argv, int sci_idx, void *infop);
+extern void do_current_node(int argc, char **argv, int sci_idx, void *infop);
+extern void do_root_node(int argc, char **argv, int sci_idx, void *infop);
+extern void do_last_leaf(int argc, char **argv, int sci_idx, void *infop);
+extern void do_first_sib(int argc, char **argv, int sci_idx, void *infop);
+extern void do_last_sib(int argc, char **argv, int sci_idx, void *infop);
+extern void do_next_sib(int argc, char **argv, int sci_idx, void *infop);
+extern void do_prev_sib(int argc, char **argv, int sci_idx, void *infop);
+extern void do_next_leaf(int argc, char **argv, int sci_idx, void *infop);
+extern void do_prev_leaf(int argc, char **argv, int sci_idx, void *infop);
+extern void do_next(int argc, char **argv, int sci_idx, void *infop);
+extern void do_prev(int argc, char **argv, int sci_idx, void *infop);
+extern void do_up(int argc, char **argv, int sci_idx, void *infop);
+extern void do_down(int argc, char **argv, int sci_idx, void *infop);
+extern void do_delete_node(int argc, char **argv, int sci_idx, void *infop);
+extern void do_replace_node(int argc, char **argv, int sci_idx, void *infop);
+extern void do_split_node(int argc, char **argv, int sci_idx, void *infop);
+extern void do_insert_node(int argc, char **argv, int sci_idx, void *infop);
+extern void do_set_bmap(int argc, char **argv, int sci_idx, void *infop);
+extern void do_print_all(int argc, char **argv, int sci_idx, void *infop);
+extern void do_fix_parents(int argc, char **argv, int sci_idx, void *infop);
+extern void do_info(int argc, char **argv, int sci_idx, void *infop);
+extern void do_goto_block(int argc, char **argv, int sci_idx, void *infop);
+
+/* htree.c */
+extern void do_htree_dump(int argc, char **argv, int sci_idx, void *infop);
+extern void do_dx_hash(int argc, char **argv, int sci_idx, void *infop);
+extern void do_dirsearch(int argc, char **argv, int sci_idx, void *infop);
+
+/* logdump.c */
+extern void do_logdump(int argc, char **argv, int sci_idx, void *infop);
+
+/* lsdel.c */
+extern void do_lsdel(int argc, char **argv, int sci_idx, void *infop);
+
+/* icheck.c */
+extern void do_icheck(int argc, char **argv, int sci_idx, void *infop);
+
+/* ncheck.c */
+extern void do_ncheck(int argc, char **argv, int sci_idx, void *infop);
+
+/* set_fields.c */
+extern void do_set_super(int argc, char **, int sci_idx, void *infop);
+extern void do_set_inode(int argc, char **, int sci_idx, void *infop);
+extern void do_set_block_group_descriptor(int argc, char **, int sci_idx, void *infop);
+
+/* unused.c */
+extern void do_dump_unused(int argc, char **argv, int sci_idx, void *infop);
+
+/* debugfs.c */
+extern ss_request_table *extra_cmds;
+extern const char *debug_prog_name;
+extern void internal_dump_inode(FILE *, const char *, ext2_ino_t,
+ struct ext2_inode *, int);
+
+extern void do_dirty_filesys(int argc, char **argv, int sci_idx, void *infop);
+extern void do_open_filesys(int argc, char **argv, int sci_idx, void *infop);
+extern void do_close_filesys(int argc, char **argv, int sci_idx, void *infop);
+extern void do_lcd(int argc, char **argv, int sci_idx, void *infop);
+extern void do_init_filesys(int argc, char **argv, int sci_idx, void *infop);
+extern void do_show_super_stats(int argc, char **argv, int sci_idx, void *infop);
+extern void do_kill_file(int argc, char **argv, int sci_idx, void *infop);
+extern void do_rm(int argc, char **argv, int sci_idx, void *infop);
+extern void do_link(int argc, char **argv, int sci_idx, void *infop);
+extern void do_undel(int argc, char **argv, int sci_idx, void *infop);
+extern void do_unlink(int argc, char **argv, int sci_idx, void *infop);
+extern void do_copy_inode(int argc, char *argv[], int sci_idx, void *infop);
+extern void do_find_free_block(int argc, char **argv, int sci_idx, void *infop);
+extern void do_find_free_inode(int argc, char **argv, int sci_idx, void *infop);
+extern void do_stat(int argc, char **argv, int sci_idx, void *infop);
+extern void do_dump_extents(int argc, char **argv, int sci_idx, void *infop);
+extern void do_blocks(int argc, char *argv[], int sci_idx, void *infop);
+
+extern void do_chroot(int argc, char **argv, int sci_idx, void *infop);
+extern void do_clri(int argc, char **argv, int sci_idx, void *infop);
+extern void do_freei(int argc, char **argv, int sci_idx, void *infop);
+extern void do_seti(int argc, char **argv, int sci_idx, void *infop);
+extern void do_testi(int argc, char **argv, int sci_idx, void *infop);
+extern void do_freeb(int argc, char **argv, int sci_idx, void *infop);
+extern void do_setb(int argc, char **argv, int sci_idx, void *infop);
+extern void do_testb(int argc, char **argv, int sci_idx, void *infop);
+extern void do_modify_inode(int argc, char **argv, int sci_idx, void *infop);
+extern void do_list_dir(int argc, char **argv, int sci_idx, void *infop);
+extern void do_change_working_dir(int argc, char **argv, int sci_idx, void *infop);
+extern void do_print_working_directory(int argc, char **argv, int sci_idx, void *infop);
+extern void do_write(int argc, char **argv, int sci_idx, void *infop);
+extern void do_mknod(int argc, char **argv, int sci_idx, void *infop);
+extern void do_mkdir(int argc, char **argv, int sci_idx, void *infop);
+extern void do_rmdir(int argc, char **argv, int sci_idx, void *infop);
+extern void do_show_debugfs_params(int argc, char **argv, int sci_idx, void *infop);
+extern void do_expand_dir(int argc, char **argv, int sci_idx, void *infop);
+extern void do_features(int argc, char **argv, int sci_idx, void *infop);
+extern void do_bmap(int argc, char **argv, int sci_idx, void *infop);
+extern void do_imap(int argc, char **argv, int sci_idx, void *infop);
+extern void do_idump(int argc, char *argv[], int sci_idx, void *infop);
+extern void do_set_current_time(int argc, char **argv, int sci_idx, void *infop);
+extern void do_supported_features(int argc, char **argv, int sci_idx, void *infop);
+extern void do_punch(int argc, char **argv, int sci_idx, void *infop);
+extern void do_fallocate(int argc, char **argv, int sci_idx, void *infop);
+extern void do_symlink(int argc, char **argv, int sci_idx, void *infop);
+
+extern void do_dump_mmp(int argc, char **argv, int sci_idx, void *infop);
+extern void do_set_mmp_value(int argc, char **argv, int sci_idx, void *infop);
+
+extern void do_freefrag(int argc, char **argv, int sci_idx, void *infop);
+extern void do_filefrag(int argc, char *argv[], int sci_idx, void *infop);
+
+/* do_journal.c */
+
+extern void do_journal_write(int argc, char *argv[], int sci_idx, void *infop);
+extern void do_journal_open(int argc, char *argv[], int sci_idx, void *infop);
+extern void do_journal_close(int argc, char *argv[], int sci_idx, void *infop);
+extern void do_journal_run(int argc, char *argv[], int sci_idx, void *infop);
+
+/* quota.c */
+extern void do_list_quota(int argc, char *argv[], int sci_idx, void *infop);
+extern void do_get_quota(int argc, char *argv[], int sci_idx, void *infop);
+
+/* util.c */
+extern __s64 string_to_time(const char *arg);
+extern errcode_t read_list(char *str, blk64_t **list, size_t *len);
+extern void do_byte_hexdump(FILE *fp, unsigned char *buf, size_t bufsize);
+
+/* xattrs.c */
+void dump_inode_attributes(FILE *out, ext2_ino_t ino);
+void do_get_xattr(int argc, char **argv, int sci_idx, void *infop);
+void do_set_xattr(int argc, char **argv, int sci_idx, void *infop);
+void do_rm_xattr(int argc, char **argv, int sci_idx, void *infop);
+void do_list_xattr(int argc, char **argv, int sci_idx, void *infop);
+void raw_inode_xattr_dump(FILE *f, unsigned char *buf, unsigned int len);
+void block_xattr_dump(FILE *f, unsigned char *buf, unsigned int len);
+
+/* zap.c */
+extern void do_zap_block(int argc, char **argv, int sci_idx, void *infop);
+extern void do_block_dump(int argc, char **argv, int sci_idx, void *infop);
diff --git a/debugfs/do_journal.c b/debugfs/do_journal.c
new file mode 100644
index 0000000..38439c6
--- /dev/null
+++ b/debugfs/do_journal.c
@@ -0,0 +1,972 @@
+/*
+ * do_journal.c --- Scribble onto the journal!
+ *
+ * Copyright (C) 2014 Oracle. This file may be redistributed
+ * under the terms of the GNU Public License.
+ */
+
+#include "config.h"
+#include <stdio.h>
+#ifdef HAVE_GETOPT_H
+#include <getopt.h>
+#else
+extern int optind;
+extern char *optarg;
+#endif
+#include <ctype.h>
+#include <unistd.h>
+#ifdef HAVE_SYS_TIME_H
+#include <sys/time.h>
+#endif
+
+#include "debugfs.h"
+#include "ext2fs/kernel-jbd.h"
+#include "journal.h"
+
+#undef DEBUG
+
+#ifdef DEBUG
+# define dbg_printf(f, a...) do {printf("JFS DEBUG: " f, ## a); \
+ fflush(stdout); \
+} while (0)
+#else
+# define dbg_printf(f, a...)
+#endif
+
+#define JOURNAL_CHECK_TRANS_MAGIC(x) \
+ do { \
+ if ((x)->magic != J_TRANS_MAGIC) \
+ return EXT2_ET_INVALID_ARGUMENT; \
+ } while (0)
+
+#define J_TRANS_MAGIC 0xD15EA5ED
+#define J_TRANS_OPEN 1
+#define J_TRANS_COMMITTED 2
+struct journal_transaction_s {
+ unsigned int magic;
+ ext2_filsys fs;
+ journal_t *journal;
+ blk64_t block;
+ blk64_t start, end;
+ tid_t tid;
+ int flags;
+};
+
+typedef struct journal_transaction_s journal_transaction_t;
+
+static journal_t *current_journal = NULL;
+
+static void journal_dump_trans(journal_transaction_t *trans EXT2FS_ATTR((unused)),
+ const char *tag EXT2FS_ATTR((unused)))
+{
+ dbg_printf("TRANS %p(%s): tid=%u start=%llu block=%llu end=%llu "
+ "flags=0x%x\n", trans, tag, trans->tid, trans->start,
+ trans->block, trans->end, trans->flags);
+}
+
+static errcode_t journal_commit_trans(journal_transaction_t *trans)
+{
+ struct buffer_head *bh, *cbh = NULL;
+ struct commit_header *commit;
+#ifdef HAVE_SYS_TIME_H
+ struct timeval tv;
+#endif
+ errcode_t err;
+
+ JOURNAL_CHECK_TRANS_MAGIC(trans);
+
+ if ((trans->flags & J_TRANS_COMMITTED) ||
+ !(trans->flags & J_TRANS_OPEN))
+ return EXT2_ET_INVALID_ARGUMENT;
+
+ bh = getblk(trans->journal->j_dev, 0, trans->journal->j_blocksize);
+ if (bh == NULL)
+ return ENOMEM;
+
+ /* write the descriptor block header */
+ commit = (struct commit_header *)bh->b_data;
+ commit->h_magic = ext2fs_cpu_to_be32(JBD2_MAGIC_NUMBER);
+ commit->h_blocktype = ext2fs_cpu_to_be32(JBD2_COMMIT_BLOCK);
+ commit->h_sequence = ext2fs_cpu_to_be32(trans->tid);
+ if (jbd2_has_feature_checksum(trans->journal)) {
+ __u32 csum_v1 = ~0;
+ blk64_t cblk;
+
+ cbh = getblk(trans->journal->j_dev, 0,
+ trans->journal->j_blocksize);
+ if (cbh == NULL) {
+ err = ENOMEM;
+ goto error;
+ }
+
+ for (cblk = trans->start; cblk < trans->block; cblk++) {
+ err = jbd2_journal_bmap(trans->journal, cblk,
+ &cbh->b_blocknr);
+ if (err)
+ goto error;
+ mark_buffer_uptodate(cbh, 0);
+ ll_rw_block(REQ_OP_READ, 0, 1, &cbh);
+ err = cbh->b_err;
+ if (err)
+ goto error;
+ csum_v1 = ext2fs_crc32_be(csum_v1,
+ (unsigned char const *)cbh->b_data,
+ cbh->b_size);
+ }
+
+ commit->h_chksum_type = JBD2_CRC32_CHKSUM;
+ commit->h_chksum_size = JBD2_CRC32_CHKSUM_SIZE;
+ commit->h_chksum[0] = ext2fs_cpu_to_be32(csum_v1);
+ } else {
+ commit->h_chksum_type = 0;
+ commit->h_chksum_size = 0;
+ commit->h_chksum[0] = 0;
+ }
+#ifdef HAVE_SYS_TIME_H
+ gettimeofday(&tv, NULL);
+ commit->h_commit_sec = ext2fs_cpu_to_be32(tv.tv_sec);
+ commit->h_commit_nsec = ext2fs_cpu_to_be32(tv.tv_usec * 1000);
+#else
+ commit->h_commit_sec = 0;
+ commit->h_commit_nsec = 0;
+#endif
+
+ /* Write block */
+ jbd2_commit_block_csum_set(trans->journal, bh);
+ err = jbd2_journal_bmap(trans->journal, trans->block, &bh->b_blocknr);
+ if (err)
+ goto error;
+
+ dbg_printf("Writing commit block at %llu:%llu\n", trans->block,
+ bh->b_blocknr);
+ mark_buffer_dirty(bh);
+ ll_rw_block(REQ_OP_WRITE, 0, 1, &bh);
+ err = bh->b_err;
+ if (err)
+ goto error;
+ trans->flags |= J_TRANS_COMMITTED;
+ trans->flags &= ~J_TRANS_OPEN;
+ trans->block++;
+
+ ext2fs_set_feature_journal_needs_recovery(trans->fs->super);
+ ext2fs_mark_super_dirty(trans->fs);
+error:
+ if (cbh)
+ brelse(cbh);
+ brelse(bh);
+ return err;
+}
+
+static errcode_t journal_add_revoke_to_trans(journal_transaction_t *trans,
+ blk64_t *revoke_list,
+ size_t revoke_len)
+{
+ jbd2_journal_revoke_header_t *jrb;
+ void *buf;
+ size_t i, offset;
+ blk64_t curr_blk;
+ unsigned int sz;
+ unsigned csum_size = 0;
+ struct buffer_head *bh;
+ errcode_t err;
+
+ JOURNAL_CHECK_TRANS_MAGIC(trans);
+
+ if ((trans->flags & J_TRANS_COMMITTED) ||
+ !(trans->flags & J_TRANS_OPEN))
+ return EXT2_ET_INVALID_ARGUMENT;
+
+ if (revoke_len == 0)
+ return 0;
+
+ /* Do we need to leave space at the end for a checksum? */
+ if (jbd2_journal_has_csum_v2or3(trans->journal))
+ csum_size = sizeof(struct jbd2_journal_block_tail);
+
+ curr_blk = trans->block;
+
+ bh = getblk(trans->journal->j_dev, curr_blk,
+ trans->journal->j_blocksize);
+ if (bh == NULL)
+ return ENOMEM;
+ jrb = buf = bh->b_data;
+ jrb->r_header.h_magic = ext2fs_cpu_to_be32(JBD2_MAGIC_NUMBER);
+ jrb->r_header.h_blocktype = ext2fs_cpu_to_be32(JBD2_REVOKE_BLOCK);
+ jrb->r_header.h_sequence = ext2fs_cpu_to_be32(trans->tid);
+ offset = sizeof(*jrb);
+
+ if (jbd2_has_feature_64bit(trans->journal))
+ sz = 8;
+ else
+ sz = 4;
+
+ for (i = 0; i < revoke_len; i++) {
+ /* Block full, write to journal */
+ if (offset + sz > trans->journal->j_blocksize - csum_size) {
+ jrb->r_count = ext2fs_cpu_to_be32(offset);
+ jbd2_revoke_csum_set(trans->journal, bh);
+
+ err = jbd2_journal_bmap(trans->journal, curr_blk,
+ &bh->b_blocknr);
+ if (err)
+ goto error;
+ dbg_printf("Writing revoke block at %llu:%llu\n",
+ curr_blk, bh->b_blocknr);
+ mark_buffer_dirty(bh);
+ ll_rw_block(REQ_OP_WRITE, 0, 1, &bh);
+ err = bh->b_err;
+ if (err)
+ goto error;
+
+ offset = sizeof(*jrb);
+ curr_blk++;
+ }
+
+ if (revoke_list[i] >=
+ ext2fs_blocks_count(trans->journal->j_fs_dev->k_fs->super)) {
+ err = EXT2_ET_BAD_BLOCK_NUM;
+ goto error;
+ }
+
+ if (jbd2_has_feature_64bit(trans->journal))
+ *((__u64 *)(&((char *)buf)[offset])) =
+ ext2fs_cpu_to_be64(revoke_list[i]);
+ else
+ *((__u32 *)(&((char *)buf)[offset])) =
+ ext2fs_cpu_to_be32(revoke_list[i]);
+ offset += sz;
+ }
+
+ if (offset > 0) {
+ jrb->r_count = ext2fs_cpu_to_be32(offset);
+ jbd2_revoke_csum_set(trans->journal, bh);
+
+ err = jbd2_journal_bmap(trans->journal, curr_blk,
+ &bh->b_blocknr);
+ if (err)
+ goto error;
+ dbg_printf("Writing revoke block at %llu:%llu\n",
+ curr_blk, bh->b_blocknr);
+ mark_buffer_dirty(bh);
+ ll_rw_block(REQ_OP_WRITE, 0, 1, &bh);
+ err = bh->b_err;
+ if (err)
+ goto error;
+ curr_blk++;
+ }
+
+error:
+ trans->block = curr_blk;
+ brelse(bh);
+ return err;
+}
+
+static errcode_t journal_add_blocks_to_trans(journal_transaction_t *trans,
+ blk64_t *block_list, size_t block_len,
+ FILE *fp)
+{
+ blk64_t curr_blk, jdb_blk;
+ size_t i, j;
+ int csum_size = 0;
+ journal_header_t *jdb;
+ journal_block_tag_t *jdbt;
+ int tag_bytes;
+ void *buf = NULL, *jdb_buf = NULL;
+ struct buffer_head *bh = NULL, *data_bh;
+ errcode_t err;
+
+ JOURNAL_CHECK_TRANS_MAGIC(trans);
+
+ if ((trans->flags & J_TRANS_COMMITTED) ||
+ !(trans->flags & J_TRANS_OPEN))
+ return EXT2_ET_INVALID_ARGUMENT;
+
+ if (block_len == 0)
+ return 0;
+
+ /* Do we need to leave space at the end for a checksum? */
+ if (jbd2_journal_has_csum_v2or3(trans->journal))
+ csum_size = sizeof(struct jbd2_journal_block_tail);
+
+ curr_blk = jdb_blk = trans->block;
+
+ data_bh = getblk(trans->journal->j_dev, curr_blk,
+ trans->journal->j_blocksize);
+ if (data_bh == NULL)
+ return ENOMEM;
+ buf = data_bh->b_data;
+
+ /* write the descriptor block header */
+ bh = getblk(trans->journal->j_dev, curr_blk,
+ trans->journal->j_blocksize);
+ if (bh == NULL) {
+ err = ENOMEM;
+ goto error;
+ }
+ jdb = jdb_buf = bh->b_data;
+ jdb->h_magic = ext2fs_cpu_to_be32(JBD2_MAGIC_NUMBER);
+ jdb->h_blocktype = ext2fs_cpu_to_be32(JBD2_DESCRIPTOR_BLOCK);
+ jdb->h_sequence = ext2fs_cpu_to_be32(trans->tid);
+ jdbt = (journal_block_tag_t *)(jdb + 1);
+
+ curr_blk++;
+ for (i = 0; i < block_len; i++) {
+ j = fread(data_bh->b_data, trans->journal->j_blocksize, 1, fp);
+ if (j != 1) {
+ err = errno;
+ goto error;
+ }
+
+ tag_bytes = journal_tag_bytes(trans->journal);
+
+ /* No space left in descriptor block, write it out */
+ if ((char *)jdbt + tag_bytes >
+ (char *)jdb_buf + trans->journal->j_blocksize - csum_size) {
+ jbd2_descr_block_csum_set(trans->journal, bh);
+ err = jbd2_journal_bmap(trans->journal, jdb_blk,
+ &bh->b_blocknr);
+ if (err)
+ goto error;
+ dbg_printf("Writing descriptor block at %llu:%llu\n",
+ jdb_blk, bh->b_blocknr);
+ mark_buffer_dirty(bh);
+ ll_rw_block(REQ_OP_WRITE, 0, 1, &bh);
+ err = bh->b_err;
+ if (err)
+ goto error;
+
+ jdbt = (journal_block_tag_t *)(jdb + 1);
+ jdb_blk = curr_blk;
+ curr_blk++;
+ }
+
+ if (block_list[i] >=
+ ext2fs_blocks_count(trans->journal->j_fs_dev->k_fs->super)) {
+ err = EXT2_ET_BAD_BLOCK_NUM;
+ goto error;
+ }
+
+ /* Fill out the block tag */
+ jdbt->t_blocknr = ext2fs_cpu_to_be32(block_list[i] & 0xFFFFFFFF);
+ jdbt->t_flags = 0;
+ if (jdbt != (journal_block_tag_t *)(jdb + 1))
+ jdbt->t_flags |= ext2fs_cpu_to_be16(JBD2_FLAG_SAME_UUID);
+ else {
+ memcpy(jdbt + tag_bytes,
+ trans->journal->j_superblock->s_uuid,
+ sizeof(trans->journal->j_superblock->s_uuid));
+ tag_bytes += 16;
+ }
+ if (i == block_len - 1)
+ jdbt->t_flags |= ext2fs_cpu_to_be16(JBD2_FLAG_LAST_TAG);
+ if (*((__u32 *)buf) == ext2fs_cpu_to_be32(JBD2_MAGIC_NUMBER)) {
+ *((__u32 *)buf) = 0;
+ jdbt->t_flags |= ext2fs_cpu_to_be16(JBD2_FLAG_ESCAPE);
+ }
+ if (jbd2_has_feature_64bit(trans->journal))
+ jdbt->t_blocknr_high = ext2fs_cpu_to_be32(block_list[i] >> 32);
+ jbd2_block_tag_csum_set(trans->journal, jdbt, data_bh,
+ trans->tid);
+
+ /* Write the data block */
+ err = jbd2_journal_bmap(trans->journal, curr_blk,
+ &data_bh->b_blocknr);
+ if (err)
+ goto error;
+ dbg_printf("Writing data block %llu at %llu:%llu tag %d\n",
+ block_list[i], curr_blk, data_bh->b_blocknr,
+ tag_bytes);
+ mark_buffer_dirty(data_bh);
+ ll_rw_block(REQ_OP_WRITE, 0, 1, &data_bh);
+ err = data_bh->b_err;
+ if (err)
+ goto error;
+
+ curr_blk++;
+ jdbt = (journal_block_tag_t *)(((char *)jdbt) + tag_bytes);
+ }
+
+ /* Write out the last descriptor block */
+ if (jdbt != (journal_block_tag_t *)(jdb + 1)) {
+ jbd2_descr_block_csum_set(trans->journal, bh);
+ err = jbd2_journal_bmap(trans->journal, jdb_blk,
+ &bh->b_blocknr);
+ if (err)
+ goto error;
+ dbg_printf("Writing descriptor block at %llu:%llu\n",
+ jdb_blk, bh->b_blocknr);
+ mark_buffer_dirty(bh);
+ ll_rw_block(REQ_OP_WRITE, 0, 1, &bh);
+ err = bh->b_err;
+ if (err)
+ goto error;
+ }
+
+error:
+ trans->block = curr_blk;
+ if (bh)
+ brelse(bh);
+ brelse(data_bh);
+ return err;
+}
+
+static blk64_t journal_guess_blocks(journal_t *journal, blk64_t data_blocks,
+ blk64_t revoke_blocks)
+{
+ blk64_t ret = 1;
+ unsigned int bs, sz;
+
+ /* Estimate # of revoke blocks */
+ bs = journal->j_blocksize;
+ if (jbd2_journal_has_csum_v2or3(journal))
+ bs -= sizeof(struct jbd2_journal_block_tail);
+ sz = jbd2_has_feature_64bit(journal) ? sizeof(__u64) : sizeof(__u32);
+ ret += revoke_blocks * sz / bs;
+
+ /* Estimate # of data blocks */
+ bs = journal->j_blocksize - 16;
+ if (jbd2_journal_has_csum_v2or3(journal))
+ bs -= sizeof(struct jbd2_journal_block_tail);
+ sz = journal_tag_bytes(journal);
+ ret += data_blocks * sz / bs;
+
+ ret += data_blocks;
+
+ return ret;
+}
+
+static errcode_t journal_open_trans(journal_t *journal,
+ journal_transaction_t *trans,
+ blk64_t blocks)
+{
+ trans->fs = journal->j_fs_dev->k_fs;
+ trans->journal = journal;
+ trans->flags = J_TRANS_OPEN;
+
+ if (journal->j_tail == 0) {
+ /* Clean journal, start at the tail */
+ trans->tid = journal->j_tail_sequence;
+ trans->start = journal->j_first;
+ } else {
+ /* Put new transaction at the head of the list */
+ trans->tid = journal->j_transaction_sequence;
+ trans->start = journal->j_head;
+ }
+
+ trans->block = trans->start;
+ if (trans->start + blocks > journal->j_last)
+ return ENOSPC;
+ trans->end = trans->block + blocks;
+ journal_dump_trans(trans, "new transaction");
+
+ trans->magic = J_TRANS_MAGIC;
+ return 0;
+}
+
+static errcode_t journal_close_trans(journal_transaction_t *trans)
+{
+ journal_t *journal;
+
+ JOURNAL_CHECK_TRANS_MAGIC(trans);
+
+ if (!(trans->flags & J_TRANS_COMMITTED))
+ return 0;
+
+ journal = trans->journal;
+ if (journal->j_tail == 0) {
+ /* Update the tail */
+ journal->j_tail_sequence = trans->tid;
+ journal->j_tail = trans->start;
+ journal->j_superblock->s_start = ext2fs_cpu_to_be32(trans->start);
+ }
+
+ /* Update the head */
+ journal->j_head = trans->end + 1;
+ journal->j_transaction_sequence = trans->tid + 1;
+
+ trans->magic = 0;
+
+ /* Mark ourselves as needing recovery */
+ if (!ext2fs_has_feature_journal_needs_recovery(trans->fs->super)) {
+ ext2fs_set_feature_journal_needs_recovery(trans->fs->super);
+ ext2fs_mark_super_dirty(trans->fs);
+ }
+
+ return 0;
+}
+
+#define JOURNAL_WRITE_NO_COMMIT 1
+static errcode_t journal_write(journal_t *journal,
+ int flags, blk64_t *block_list,
+ size_t block_len, blk64_t *revoke_list,
+ size_t revoke_len, FILE *fp)
+{
+ blk64_t blocks;
+ journal_transaction_t trans;
+ errcode_t err;
+
+ if (revoke_len > 0) {
+ jbd2_set_feature_revoke(journal);
+ mark_buffer_dirty(journal->j_sb_buffer);
+ }
+
+ blocks = journal_guess_blocks(journal, block_len, revoke_len);
+ err = journal_open_trans(journal, &trans, blocks);
+ if (err)
+ goto error;
+
+ err = journal_add_blocks_to_trans(&trans, block_list, block_len, fp);
+ if (err)
+ goto error;
+
+ err = journal_add_revoke_to_trans(&trans, revoke_list, revoke_len);
+ if (err)
+ goto error;
+
+ if (!(flags & JOURNAL_WRITE_NO_COMMIT)) {
+ err = journal_commit_trans(&trans);
+ if (err)
+ goto error;
+ }
+
+ err = journal_close_trans(&trans);
+error:
+ return err;
+}
+
+void do_journal_write(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ blk64_t *blist = NULL, *rlist = NULL;
+ size_t bn = 0, rn = 0;
+ FILE *fp = NULL;
+ int opt;
+ int flags = 0;
+ errcode_t err;
+
+ if (current_journal == NULL) {
+ printf("Journal not open.\n");
+ return;
+ }
+
+ reset_getopt();
+ while ((opt = getopt(argc, argv, "b:r:c")) != -1) {
+ switch (opt) {
+ case 'b':
+ err = read_list(optarg, &blist, &bn);
+ if (err) {
+ com_err(argv[0], err,
+ "while reading block list");
+ goto out;
+ }
+ break;
+ case 'r':
+ err = read_list(optarg, &rlist, &rn);
+ if (err) {
+ com_err(argv[0], err,
+ "while reading revoke list");
+ goto out;
+ }
+ break;
+ case 'c':
+ flags |= JOURNAL_WRITE_NO_COMMIT;
+ break;
+ default:
+ printf("%s [-b blocks] [-r revoke] [-c] file\n",
+ argv[0]);
+ printf("-b: Write these blocks into transaction.\n");
+ printf("-c: Do not commit transaction.\n");
+ printf("-r: Revoke these blocks from transaction.\n");
+
+ goto out;
+ }
+ }
+
+ if (bn > 0 && optind != argc - 1) {
+ printf("Need a file to read blocks from.\n");
+ return;
+ }
+
+ if (bn > 0) {
+ fp = fopen(argv[optind], "r");
+ if (fp == NULL) {
+ com_err(argv[0], errno,
+ "while opening journal data file");
+ goto out;
+ }
+ }
+
+ err = journal_write(current_journal, flags, blist, bn,
+ rlist, rn, fp);
+ if (err)
+ com_err("journal_write", err, "while writing journal");
+
+ if (fp)
+ fclose(fp);
+out:
+ if (blist)
+ free(blist);
+ if (rlist)
+ free(rlist);
+}
+
+/* Make sure we wrap around the log correctly! */
+#define wrap(journal, var) \
+do { \
+ if (var >= (journal)->j_last) \
+ var -= ((journal)->j_last - (journal)->j_first); \
+} while (0)
+
+/*
+ * Count the number of in-use tags in a journal descriptor block.
+ */
+
+static int count_tags(journal_t *journal, char *buf)
+{
+ char *tagp;
+ journal_block_tag_t *tag;
+ int nr = 0, size = journal->j_blocksize;
+ int tag_bytes = journal_tag_bytes(journal);
+
+ if (jbd2_journal_has_csum_v2or3(journal))
+ size -= sizeof(struct jbd2_journal_block_tail);
+
+ tagp = buf + sizeof(journal_header_t);
+
+ while ((tagp - buf + tag_bytes) <= size) {
+ tag = (journal_block_tag_t *) tagp;
+
+ nr++;
+ tagp += tag_bytes;
+ if (!(tag->t_flags & ext2fs_cpu_to_be16(JBD2_FLAG_SAME_UUID)))
+ tagp += 16;
+
+ if (tag->t_flags & ext2fs_cpu_to_be16(JBD2_FLAG_LAST_TAG))
+ break;
+ }
+
+ return nr;
+}
+
+static errcode_t journal_find_head(journal_t *journal)
+{
+ unsigned int next_commit_ID;
+ blk64_t next_log_block, head_block;
+ int err;
+ journal_superblock_t *sb;
+ journal_header_t *tmp;
+ struct buffer_head *bh;
+ unsigned int sequence;
+ int blocktype;
+
+ /*
+ * First thing is to establish what we expect to find in the log
+ * (in terms of transaction IDs), and where (in terms of log
+ * block offsets): query the superblock.
+ */
+
+ sb = journal->j_superblock;
+ next_commit_ID = ext2fs_be32_to_cpu(sb->s_sequence);
+ next_log_block = ext2fs_be32_to_cpu(sb->s_start);
+ head_block = next_log_block;
+
+ if (next_log_block == 0)
+ return 0;
+
+ bh = getblk(journal->j_dev, 0, journal->j_blocksize);
+ if (bh == NULL)
+ return ENOMEM;
+
+ /*
+ * Now we walk through the log, transaction by transaction,
+ * making sure that each transaction has a commit block in the
+ * expected place. Each complete transaction gets replayed back
+ * into the main filesystem.
+ */
+ while (1) {
+ dbg_printf("Scanning for sequence ID %u at %lu/%lu\n",
+ next_commit_ID, (unsigned long)next_log_block,
+ journal->j_last);
+
+ /* Skip over each chunk of the transaction looking
+ * either the next descriptor block or the final commit
+ * record. */
+ err = jbd2_journal_bmap(journal, next_log_block,
+ &bh->b_blocknr);
+ if (err)
+ goto err;
+ mark_buffer_uptodate(bh, 0);
+ ll_rw_block(REQ_OP_READ, 0, 1, &bh);
+ err = bh->b_err;
+ if (err)
+ goto err;
+
+ next_log_block++;
+ wrap(journal, next_log_block);
+
+ /* What kind of buffer is it?
+ *
+ * If it is a descriptor block, check that it has the
+ * expected sequence number. Otherwise, we're all done
+ * here. */
+
+ tmp = (journal_header_t *)bh->b_data;
+
+ if (tmp->h_magic != ext2fs_cpu_to_be32(JBD2_MAGIC_NUMBER)) {
+ dbg_printf("JBD2: wrong magic 0x%x\n", tmp->h_magic);
+ goto err;
+ }
+
+ blocktype = ext2fs_be32_to_cpu(tmp->h_blocktype);
+ sequence = ext2fs_be32_to_cpu(tmp->h_sequence);
+ dbg_printf("Found magic %d, sequence %d\n",
+ blocktype, sequence);
+
+ if (sequence != next_commit_ID) {
+ dbg_printf("JBD2: Wrong sequence %d (wanted %d)\n",
+ sequence, next_commit_ID);
+ goto err;
+ }
+
+ /* OK, we have a valid descriptor block which matches
+ * all of the sequence number checks. What are we going
+ * to do with it? That depends on the pass... */
+
+ switch (blocktype) {
+ case JBD2_DESCRIPTOR_BLOCK:
+ next_log_block += count_tags(journal, bh->b_data);
+ wrap(journal, next_log_block);
+ continue;
+
+ case JBD2_COMMIT_BLOCK:
+ head_block = next_log_block;
+ next_commit_ID++;
+ continue;
+
+ case JBD2_REVOKE_BLOCK:
+ continue;
+
+ default:
+ dbg_printf("Unrecognised magic %d, end of scan.\n",
+ blocktype);
+ err = -EINVAL;
+ goto err;
+ }
+ }
+
+err:
+ if (err == 0) {
+ dbg_printf("head seq=%d blk=%llu\n", next_commit_ID,
+ head_block);
+ journal->j_transaction_sequence = next_commit_ID;
+ journal->j_head = head_block;
+ }
+ brelse(bh);
+ return err;
+}
+
+static void update_journal_csum(journal_t *journal, int ver)
+{
+ journal_superblock_t *jsb;
+
+ if (journal->j_format_version < 2)
+ return;
+
+ if (journal->j_tail != 0 ||
+ ext2fs_has_feature_journal_needs_recovery(
+ journal->j_fs_dev->k_fs->super)) {
+ printf("Journal needs recovery, will not add csums.\n");
+ return;
+ }
+
+ /* metadata_csum implies journal csum v3 */
+ jsb = journal->j_superblock;
+ if (ext2fs_has_feature_metadata_csum(journal->j_fs_dev->k_fs->super)) {
+ printf("Setting csum v%d\n", ver);
+ switch (ver) {
+ case 2:
+ jbd2_clear_feature_csum3(journal);
+ jbd2_set_feature_csum2(journal);
+ jbd2_clear_feature_checksum(journal);
+ break;
+ case 3:
+ jbd2_set_feature_csum3(journal);
+ jbd2_clear_feature_csum2(journal);
+ jbd2_clear_feature_checksum(journal);
+ break;
+ default:
+ printf("Unknown checksum v%d\n", ver);
+ break;
+ }
+ journal->j_superblock->s_checksum_type = JBD2_CRC32C_CHKSUM;
+ journal->j_csum_seed = jbd2_chksum(journal, ~0, jsb->s_uuid,
+ sizeof(jsb->s_uuid));
+ } else {
+ jbd2_clear_feature_csum3(journal);
+ jbd2_clear_feature_csum2(journal);
+ jbd2_set_feature_checksum(journal);
+ }
+}
+
+static void update_uuid(journal_t *journal)
+{
+ size_t z;
+ ext2_filsys fs;
+
+ if (journal->j_format_version < 2)
+ return;
+
+ for (z = 0; z < sizeof(journal->j_superblock->s_uuid); z++)
+ if (journal->j_superblock->s_uuid[z])
+ break;
+ if (z == 0)
+ return;
+
+ fs = journal->j_fs_dev->k_fs;
+ if (!ext2fs_has_feature_64bit(fs->super))
+ return;
+
+ if (jbd2_has_feature_64bit(journal) &&
+ ext2fs_has_feature_64bit(fs->super))
+ return;
+
+ if (journal->j_tail != 0 ||
+ ext2fs_has_feature_journal_needs_recovery(fs->super)) {
+ printf("Journal needs recovery, will not set 64bit.\n");
+ return;
+ }
+
+ memcpy(journal->j_superblock->s_uuid, fs->super->s_uuid,
+ sizeof(fs->super->s_uuid));
+}
+
+static void update_64bit_flag(journal_t *journal)
+{
+ if (journal->j_format_version < 2)
+ return;
+
+ if (!ext2fs_has_feature_64bit(journal->j_fs_dev->k_fs->super))
+ return;
+
+ if (jbd2_has_feature_64bit(journal) &&
+ ext2fs_has_feature_64bit(journal->j_fs_dev->k_fs->super))
+ return;
+
+ if (journal->j_tail != 0 ||
+ ext2fs_has_feature_journal_needs_recovery(
+ journal->j_fs_dev->k_fs->super)) {
+ printf("Journal needs recovery, will not set 64bit.\n");
+ return;
+ }
+
+ jbd2_set_feature_64bit(journal);
+}
+
+void do_journal_open(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ int opt, enable_csum = 0, csum_ver = 3;
+ journal_t *journal;
+ errcode_t err;
+
+ if (check_fs_open(argv[0]))
+ return;
+ if (check_fs_read_write(argv[0]))
+ return;
+ if (check_fs_bitmaps(argv[0]))
+ return;
+ if (current_journal) {
+ printf("Journal is already open.\n");
+ return;
+ }
+ if (!ext2fs_has_feature_journal(current_fs->super)) {
+ printf("Journalling is not enabled on this filesystem.\n");
+ return;
+ }
+
+ reset_getopt();
+ while ((opt = getopt(argc, argv, "cv:f:")) != -1) {
+ switch (opt) {
+ case 'c':
+ enable_csum = 1;
+ break;
+ case 'f':
+ if (current_fs->journal_name)
+ free(current_fs->journal_name);
+ current_fs->journal_name = strdup(optarg);
+ break;
+ case 'v':
+ csum_ver = atoi(optarg);
+ if (csum_ver != 2 && csum_ver != 3) {
+ printf("Unknown journal csum v%d\n", csum_ver);
+ csum_ver = 3;
+ }
+ break;
+ default:
+ printf("%s: [-c] [-v ver] [-f ext_jnl]\n", argv[0]);
+ printf("-c: Enable journal checksumming.\n");
+ printf("-v: Use this version checksum format.\n");
+ printf("-f: Load this external journal.\n");
+ }
+ }
+
+ err = ext2fs_open_journal(current_fs, &current_journal);
+ if (err) {
+ com_err(argv[0], err, "while opening journal");
+ return;
+ }
+ journal = current_journal;
+
+ dbg_printf("JOURNAL: seq=%u tailseq=%u start=%lu first=%lu "
+ "maxlen=%lu\n", journal->j_tail_sequence,
+ journal->j_transaction_sequence, journal->j_tail,
+ journal->j_first, journal->j_last);
+
+ update_uuid(journal);
+ update_64bit_flag(journal);
+ if (enable_csum)
+ update_journal_csum(journal, csum_ver);
+
+ err = journal_find_head(journal);
+ if (err)
+ com_err(argv[0], err, "while examining journal");
+}
+
+void do_journal_close(int argc EXT2FS_ATTR((unused)),
+ char *argv[] EXT2FS_ATTR((unused)),
+ int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ if (current_journal == NULL) {
+ printf("Journal not open.\n");
+ return;
+ }
+
+ ext2fs_close_journal(current_fs, &current_journal);
+}
+
+void do_journal_run(int argc EXT2FS_ATTR((unused)), char *argv[],
+ int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ errcode_t err;
+
+ if (check_fs_open(argv[0]))
+ return;
+ if (check_fs_read_write(argv[0]))
+ return;
+ if (check_fs_bitmaps(argv[0]))
+ return;
+ if (current_journal) {
+ printf("Please close the journal before recovering it.\n");
+ return;
+ }
+
+ err = ext2fs_run_ext3_journal(&current_fs);
+ if (err)
+ com_err("journal_run", err, "while recovering journal");
+ else {
+ ext2fs_clear_feature_journal_needs_recovery(current_fs->super);
+ ext2fs_mark_super_dirty(current_fs);
+ }
+}
diff --git a/debugfs/dump.c b/debugfs/dump.c
new file mode 100644
index 0000000..42f5204
--- /dev/null
+++ b/debugfs/dump.c
@@ -0,0 +1,385 @@
+/*
+ * dump.c --- dump the contents of an inode out to a file
+ *
+ * Copyright (C) 1994 Theodore Ts'o. This file may be redistributed
+ * under the terms of the GNU Public License.
+ */
+
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE /* for O_LARGEFILE */
+#endif
+
+#include "config.h"
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <ctype.h>
+#include <string.h>
+#include <time.h>
+#ifdef HAVE_ERRNO_H
+#include <errno.h>
+#endif
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <utime.h>
+#ifdef HAVE_GETOPT_H
+#include <getopt.h>
+#else
+extern int optind;
+extern char *optarg;
+#endif
+
+#include "debugfs.h"
+
+#ifndef O_LARGEFILE
+#define O_LARGEFILE 0
+#endif
+
+/*
+ * The mode_xlate function translates a linux mode into a native-OS mode_t.
+ */
+static struct {
+ __u16 lmask;
+ mode_t mask;
+} mode_table[] = {
+ { LINUX_S_IRUSR, S_IRUSR },
+ { LINUX_S_IWUSR, S_IWUSR },
+ { LINUX_S_IXUSR, S_IXUSR },
+ { LINUX_S_IRGRP, S_IRGRP },
+ { LINUX_S_IWGRP, S_IWGRP },
+ { LINUX_S_IXGRP, S_IXGRP },
+ { LINUX_S_IROTH, S_IROTH },
+ { LINUX_S_IWOTH, S_IWOTH },
+ { LINUX_S_IXOTH, S_IXOTH },
+ { 0, 0 }
+};
+
+static mode_t mode_xlate(__u16 lmode)
+{
+ mode_t mode = 0;
+ int i;
+
+ for (i=0; mode_table[i].lmask; i++) {
+ if (lmode & mode_table[i].lmask)
+ mode |= mode_table[i].mask;
+ }
+ return mode;
+}
+
+static void fix_perms(const char *cmd, const struct ext2_inode *inode,
+ int fd, const char *name)
+{
+ struct utimbuf ut;
+ int i;
+
+ if (fd != -1)
+ i = fchmod(fd, mode_xlate(inode->i_mode));
+ else
+ i = chmod(name, mode_xlate(inode->i_mode));
+ if (i == -1)
+ com_err(cmd, errno, "while setting permissions of %s", name);
+
+#ifndef HAVE_FCHOWN
+ i = chown(name, inode_uid(*inode), inode_gid(*inode));
+#else
+ if (fd != -1)
+ i = fchown(fd, inode_uid(*inode), inode_gid(*inode));
+ else
+ i = chown(name, inode_uid(*inode), inode_gid(*inode));
+#endif
+ if (i == -1)
+ com_err(cmd, errno, "while changing ownership of %s", name);
+
+ ut.actime = inode->i_atime;
+ ut.modtime = inode->i_mtime;
+ if (utime(name, &ut) == -1)
+ com_err(cmd, errno, "while setting times of %s", name);
+}
+
+static void dump_file(const char *cmdname, ext2_ino_t ino, int fd,
+ int preserve, char *outname)
+{
+ errcode_t retval;
+ struct ext2_inode inode;
+ char *buf = 0;
+ ext2_file_t e2_file;
+ int nbytes;
+ unsigned int got, blocksize = current_fs->blocksize;
+
+ if (debugfs_read_inode(ino, &inode, cmdname))
+ return;
+
+ retval = ext2fs_file_open(current_fs, ino, 0, &e2_file);
+ if (retval) {
+ com_err(cmdname, retval, "while opening ext2 file");
+ return;
+ }
+ retval = ext2fs_get_mem(blocksize, &buf);
+ if (retval) {
+ com_err(cmdname, retval, "while allocating memory");
+ return;
+ }
+ while (1) {
+ retval = ext2fs_file_read(e2_file, buf, blocksize, &got);
+ if (retval)
+ com_err(cmdname, retval, "while reading ext2 file");
+ if (got == 0)
+ break;
+ nbytes = write(fd, buf, got);
+ if ((unsigned) nbytes != got)
+ com_err(cmdname, errno, "while writing file");
+ }
+ if (buf)
+ ext2fs_free_mem(&buf);
+ retval = ext2fs_file_close(e2_file);
+ if (retval) {
+ com_err(cmdname, retval, "while closing ext2 file");
+ return;
+ }
+
+ if (preserve)
+ fix_perms("dump_file", &inode, fd, outname);
+
+ return;
+}
+
+void do_dump(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ ext2_ino_t inode;
+ int fd;
+ int c;
+ int preserve = 0;
+ char *in_fn, *out_fn;
+
+ reset_getopt();
+ while ((c = getopt (argc, argv, "p")) != EOF) {
+ switch (c) {
+ case 'p':
+ preserve++;
+ break;
+ default:
+ print_usage:
+ com_err(argv[0], 0, "Usage: dump_inode [-p] "
+ "<file> <output_file>");
+ return;
+ }
+ }
+ if (optind != argc-2)
+ goto print_usage;
+
+ if (check_fs_open(argv[0]))
+ return;
+
+ in_fn = argv[optind];
+ out_fn = argv[optind+1];
+
+ inode = string_to_inode(in_fn);
+ if (!inode)
+ return;
+
+ fd = open(out_fn, O_CREAT | O_WRONLY | O_TRUNC | O_LARGEFILE, 0666);
+ if (fd < 0) {
+ com_err(argv[0], errno, "while opening %s for dump_inode",
+ out_fn);
+ return;
+ }
+
+ dump_file(argv[0], inode, fd, preserve, out_fn);
+ if (close(fd) != 0) {
+ com_err(argv[0], errno, "while closing %s for dump_inode",
+ out_fn);
+ return;
+ }
+
+ return;
+}
+
+static void rdump_symlink(ext2_ino_t ino, struct ext2_inode *inode,
+ const char *fullname)
+{
+ ext2_file_t e2_file;
+ char *buf;
+ errcode_t retval;
+
+ buf = malloc(inode->i_size + 1);
+ if (!buf) {
+ com_err("rdump", errno, "while allocating for symlink");
+ goto errout;
+ }
+
+ if (ext2fs_is_fast_symlink(inode))
+ strcpy(buf, (char *) inode->i_block);
+ else {
+ unsigned bytes = inode->i_size;
+ char *p = buf;
+ retval = ext2fs_file_open(current_fs, ino, 0, &e2_file);
+ if (retval) {
+ com_err("rdump", retval, "while opening symlink");
+ goto errout;
+ }
+ for (;;) {
+ unsigned int got;
+ retval = ext2fs_file_read(e2_file, p, bytes, &got);
+ if (retval) {
+ com_err("rdump", retval, "while reading symlink");
+ goto errout;
+ }
+ bytes -= got;
+ p += got;
+ if (got == 0 || bytes == 0)
+ break;
+ }
+ buf[inode->i_size] = 0;
+ retval = ext2fs_file_close(e2_file);
+ if (retval)
+ com_err("rdump", retval, "while closing symlink");
+ }
+
+ if (symlink(buf, fullname) == -1) {
+ com_err("rdump", errno, "while creating symlink %s -> %s", buf, fullname);
+ goto errout;
+ }
+
+errout:
+ free(buf);
+}
+
+static int rdump_dirent(struct ext2_dir_entry *, int, int, char *, void *);
+
+static void rdump_inode(ext2_ino_t ino, struct ext2_inode *inode,
+ const char *name, const char *dumproot)
+{
+ char *fullname;
+
+ /* There are more efficient ways to do this, but this method
+ * requires only minimal debugging. */
+ fullname = malloc(strlen(dumproot) + strlen(name) + 2);
+ if (!fullname) {
+ com_err("rdump", errno, "while allocating memory");
+ return;
+ }
+ sprintf(fullname, "%s/%s", dumproot, name);
+
+ if (LINUX_S_ISLNK(inode->i_mode))
+ rdump_symlink(ino, inode, fullname);
+ else if (LINUX_S_ISREG(inode->i_mode)) {
+ int fd;
+ fd = open(fullname, O_WRONLY | O_CREAT | O_TRUNC | O_LARGEFILE, S_IRWXU);
+ if (fd == -1) {
+ com_err("rdump", errno, "while opening %s", fullname);
+ goto errout;
+ }
+ dump_file("rdump", ino, fd, 1, fullname);
+ if (close(fd) != 0) {
+ com_err("rdump", errno, "while closing %s", fullname);
+ goto errout;
+ }
+ }
+ else if (LINUX_S_ISDIR(inode->i_mode) && strcmp(name, ".") && strcmp(name, "..")) {
+ errcode_t retval;
+
+ /* Create the directory with 0700 permissions, because we
+ * expect to have to create entries it. Then fix its perms
+ * once we've done the traversal. */
+ if (name[0] && mkdir(fullname, S_IRWXU) == -1) {
+ com_err("rdump", errno, "while making directory %s", fullname);
+ goto errout;
+ }
+
+ retval = ext2fs_dir_iterate(current_fs, ino, 0, 0,
+ rdump_dirent, (void *) fullname);
+ if (retval)
+ com_err("rdump", retval, "while dumping %s", fullname);
+
+ fix_perms("rdump", inode, -1, fullname);
+ }
+ /* else do nothing (don't dump device files, sockets, fifos, etc.) */
+
+errout:
+ free(fullname);
+}
+
+static int rdump_dirent(struct ext2_dir_entry *dirent,
+ int offset EXT2FS_ATTR((unused)),
+ int blocksize EXT2FS_ATTR((unused)),
+ char *buf EXT2FS_ATTR((unused)), void *private)
+{
+ char name[EXT2_NAME_LEN + 1];
+ int thislen;
+ const char *dumproot = private;
+ struct ext2_inode inode;
+
+ thislen = ext2fs_dirent_name_len(dirent);
+ strncpy(name, dirent->name, thislen);
+ name[thislen] = 0;
+
+ if (debugfs_read_inode(dirent->inode, &inode, name))
+ return 0;
+
+ rdump_inode(dirent->inode, &inode, name, dumproot);
+
+ return 0;
+}
+
+void do_rdump(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ struct stat st;
+ char *dest_dir;
+ int i;
+
+ if (common_args_process(argc, argv, 3, INT_MAX, "rdump",
+ "<directory>... <native directory>", 0))
+ return;
+
+ /* Pull out last argument */
+ dest_dir = argv[argc - 1];
+ argc--;
+
+ /* Ensure last arg is a directory. */
+ if (stat(dest_dir, &st) == -1) {
+ com_err("rdump", errno, "while statting %s", dest_dir);
+ return;
+ }
+ if (!S_ISDIR(st.st_mode)) {
+ com_err("rdump", 0, "%s is not a directory", dest_dir);
+ return;
+ }
+
+ for (i = 1; i < argc; i++) {
+ char *arg = argv[i], *basename;
+ struct ext2_inode inode;
+ ext2_ino_t ino = string_to_inode(arg);
+ if (!ino)
+ continue;
+
+ if (debugfs_read_inode(ino, &inode, arg))
+ continue;
+
+ basename = strrchr(arg, '/');
+ if (basename)
+ basename++;
+ else
+ basename = arg;
+
+ rdump_inode(ino, &inode, basename, dest_dir);
+ }
+}
+
+void do_cat(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ ext2_ino_t inode;
+
+ if (common_inode_args_process(argc, argv, &inode, 0))
+ return;
+
+ fflush(stdout);
+ fflush(stderr);
+ dump_file(argv[0], inode, 1, 0, argv[2]);
+
+ return;
+}
+
diff --git a/debugfs/extent_cmds.ct b/debugfs/extent_cmds.ct
new file mode 100644
index 0000000..e1c4395
--- /dev/null
+++ b/debugfs/extent_cmds.ct
@@ -0,0 +1,77 @@
+#
+# Copyright (C) 1993 Theodore Ts'o. This file may be redistributed
+# under the terms of the GNU Public License.
+#
+command_table extent_cmds;
+
+request do_current_node, "Current extent node",
+ current_node, current;
+
+request do_root_node, "Goto root extent",
+ root_node, root;
+
+request do_last_leaf, "Goto last leaf",
+ last_leaf;
+
+request do_first_sib, "Goto first sibling",
+ first_sibling, first_sib;
+
+request do_last_sib, "Goto last sibling",
+ last_sibling, last_sib;
+
+request do_next_sib, "Goto next sibling",
+ next_sibling, next_sib, ns;
+
+request do_prev_sib, "Goto previous sibling",
+ prev_sibling, prev_sib, ps;
+
+request do_next_leaf, "Goto next leaf",
+ next_leaf, nl;
+
+request do_prev_leaf, "Goto previous leaf",
+ prev_leaf, pl;
+
+request do_next, "Goto next node",
+ next, n;
+
+request do_prev, "Goto previous node",
+ previous, prev, p;
+
+request do_up, "Up node",
+ up_node, up, u;
+
+request do_down, "Down node",
+ down_node, down, d;
+
+request do_delete_node, "Delete node",
+ delete_node, delete;
+
+request do_insert_node, "Insert node",
+ insert_node, insert;
+
+request do_split_node, "Split node",
+ split_node, split;
+
+request do_fix_parents, "Fix parents",
+ fix_parents, fixp;
+
+request do_set_bmap, "Set block mapping",
+ set_bmap;
+
+request do_replace_node, "Insert node",
+ replace_node, replace;
+
+request do_print_all, "Iterate over all nodes and print them",
+ print_all, all;
+
+request do_goto_block, "Goto extent containing specified block",
+ goto_block, goto;
+
+request do_info, "Print extent info",
+ info;
+
+request do_extent_close, "Close extent handle",
+ extent_close, ec;
+
+end;
+
diff --git a/debugfs/extent_inode.c b/debugfs/extent_inode.c
new file mode 100644
index 0000000..e4e815e
--- /dev/null
+++ b/debugfs/extent_inode.c
@@ -0,0 +1,568 @@
+/*
+ * extent_inode.c --- direct extent tree manipulation
+ *
+ * Copyright (C) 2012 Theodore Ts'o. This file may be redistributed
+ * under the terms of the GNU Public License.
+ */
+
+#include "config.h"
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <ctype.h>
+#include <string.h>
+#include <time.h>
+#ifdef HAVE_ERRNO_H
+#include <errno.h>
+#endif
+#include <sys/types.h>
+#ifdef HAVE_GETOPT_H
+#include <getopt.h>
+#else
+extern int optind;
+extern char *optarg;
+#endif
+
+#include "debugfs.h"
+
+static ext2_ino_t current_ino;
+static ext2_extent_handle_t current_handle;
+
+static void dbg_print_extent(char *desc, struct ext2fs_extent *extent)
+{
+ if (desc)
+ printf("%s: ", desc);
+ printf("extent: lblk %llu--%llu, len %u, pblk %llu, flags: ",
+ (unsigned long long) extent->e_lblk,
+ (unsigned long long) extent->e_lblk + extent->e_len - 1,
+ extent->e_len, (unsigned long long) extent->e_pblk);
+ if (extent->e_flags & EXT2_EXTENT_FLAGS_LEAF)
+ fputs("LEAF ", stdout);
+ if (extent->e_flags & EXT2_EXTENT_FLAGS_UNINIT)
+ fputs("UNINIT ", stdout);
+ if (extent->e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT)
+ fputs("2ND_VISIT ", stdout);
+ if (!extent->e_flags)
+ fputs("(none)", stdout);
+ fputc('\n', stdout);
+
+}
+
+static int common_extent_args_process(int argc, char *argv[], int min_argc,
+ int max_argc, const char *cmd,
+ const char *usage, int flags)
+{
+ if (common_args_process(argc, argv, min_argc, max_argc, cmd,
+ usage, flags))
+ return 1;
+
+ if (!current_handle) {
+ com_err(cmd, 0, "Extent handle not open");
+ return 1;
+ }
+ return 0;
+}
+
+static char *orig_prompt, *extent_prompt;
+
+void do_extent_open(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ ext2_ino_t inode;
+ int ret;
+ errcode_t retval;
+ char *cp;
+
+ if (check_fs_open(argv[0]))
+ return;
+
+ if (argc == 1) {
+ if (current_ino)
+ printf("Current inode is %u\n", current_ino);
+ else
+ printf("No current inode\n");
+ return;
+ }
+
+ if (common_inode_args_process(argc, argv, &inode, 0))
+ return;
+
+ current_ino = 0;
+
+ retval = ext2fs_extent_open(current_fs, inode, &current_handle);
+ if (retval) {
+ com_err(argv[1], retval, "while opening extent handle");
+ return;
+ }
+
+ current_ino = inode;
+
+ orig_prompt = ss_get_prompt(sci_idx);
+ extent_prompt = malloc(strlen(orig_prompt) + 32);
+ if (extent_prompt == NULL) {
+ com_err(argv[1], retval, "out of memory");
+ return;
+ }
+
+ strcpy(extent_prompt, orig_prompt);
+ cp = strchr(extent_prompt, ':');
+ if (cp)
+ *cp = 0;
+ sprintf(extent_prompt + strlen(extent_prompt), " (extent ino %u): ",
+ current_ino);
+ ss_add_request_table(sci_idx, &extent_cmds, 1, &ret);
+ ss_set_prompt(sci_idx, extent_prompt);
+ return;
+}
+
+void do_extent_close(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ int ret;
+
+ if (common_args_process(argc, argv, 1, 1,
+ "extent_close", "", 0))
+ return;
+
+ if (!current_handle) {
+ com_err(argv[0], 0, "Extent handle not open");
+ return;
+ }
+
+ ext2fs_extent_free(current_handle);
+ current_handle = NULL;
+ current_ino = 0;
+ ss_delete_request_table(sci_idx, &extent_cmds, &ret);
+ ss_set_prompt(sci_idx, orig_prompt);
+ free(extent_prompt);
+ extent_prompt = NULL;
+}
+
+static void generic_goto_node(const char *my_name, int argc,
+ char **argv, int op)
+{
+ struct ext2fs_extent extent;
+ errcode_t retval;
+
+ if (my_name && common_args_process(argc, argv, 1, 1,
+ my_name, "", 0))
+ return;
+
+ if (!current_handle) {
+ com_err(argv[0], 0, "Extent handle not open");
+ return;
+ }
+
+ retval = ext2fs_extent_get(current_handle, op, &extent);
+ if (retval) {
+ com_err(argv[0], retval, 0);
+ return;
+ }
+ dbg_print_extent(0, &extent);
+}
+
+void do_current_node(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ generic_goto_node("current_node", argc, argv, EXT2_EXTENT_CURRENT);
+}
+
+void do_root_node(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ generic_goto_node("root_node", argc, argv, EXT2_EXTENT_ROOT);
+}
+
+void do_last_leaf(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ generic_goto_node("last_leaf", argc, argv, EXT2_EXTENT_LAST_LEAF);
+}
+
+void do_first_sib(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ generic_goto_node("first_sib", argc, argv, EXT2_EXTENT_FIRST_SIB);
+}
+
+void do_last_sib(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ generic_goto_node("next_sib", argc, argv, EXT2_EXTENT_LAST_SIB);
+}
+
+void do_next_sib(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ generic_goto_node("next_sib", argc, argv, EXT2_EXTENT_NEXT_SIB);
+}
+
+void do_prev_sib(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ generic_goto_node("prev_sib", argc, argv, EXT2_EXTENT_PREV_SIB);
+}
+
+void do_next_leaf(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ generic_goto_node("next_leaf", argc, argv, EXT2_EXTENT_NEXT_LEAF);
+}
+
+void do_prev_leaf(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ generic_goto_node("prev_leaf", argc, argv, EXT2_EXTENT_PREV_LEAF);
+}
+
+void do_next(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ generic_goto_node("next", argc, argv, EXT2_EXTENT_NEXT);
+}
+
+void do_prev(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ generic_goto_node("prev", argc, argv, EXT2_EXTENT_PREV);
+}
+
+void do_up(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ generic_goto_node("up", argc, argv, EXT2_EXTENT_UP);
+}
+
+void do_down(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ generic_goto_node("down", argc, argv, EXT2_EXTENT_DOWN);
+}
+
+void do_delete_node(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ struct ext2fs_extent extent;
+ errcode_t retval;
+
+ if (common_extent_args_process(argc, argv, 1, 1, "delete_node",
+ "", CHECK_FS_RW | CHECK_FS_BITMAPS))
+ return;
+
+ retval = ext2fs_extent_delete(current_handle, 0);
+ if (retval) {
+ com_err(argv[0], retval, 0);
+ return;
+ }
+
+ retval = ext2fs_extent_get(current_handle, EXT2_EXTENT_CURRENT,
+ &extent);
+ if (retval)
+ return;
+ dbg_print_extent(0, &extent);
+}
+
+void do_replace_node(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ const char *usage = "[--uninit] <lblk> <len> <pblk>";
+ errcode_t retval;
+ struct ext2fs_extent extent;
+ int err;
+
+ if (common_extent_args_process(argc, argv, 3, 5, "replace_node",
+ usage, CHECK_FS_RW | CHECK_FS_BITMAPS))
+ return;
+
+ extent.e_flags = 0;
+
+ if (!strcmp(argv[1], "--uninit")) {
+ argc--;
+ argv++;
+ extent.e_flags |= EXT2_EXTENT_FLAGS_UNINIT;
+ }
+
+ if (argc != 4) {
+ fprintf(stderr, "Usage: %s %s\n", argv[0], usage);
+ return;
+ }
+
+ err = strtoblk(argv[0], argv[1], "logical block", &extent.e_lblk);
+ if (err)
+ return;
+
+ extent.e_len = parse_ulong(argv[2], argv[0], "length", &err);
+ if (err)
+ return;
+
+ err = strtoblk(argv[0], argv[3], "physical block", &extent.e_pblk);
+ if (err)
+ return;
+
+ retval = ext2fs_extent_replace(current_handle, 0, &extent);
+ if (retval) {
+ com_err(argv[0], retval, 0);
+ return;
+ }
+ generic_goto_node(NULL, argc, argv, EXT2_EXTENT_CURRENT);
+}
+
+void do_split_node(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ errcode_t retval;
+
+ if (common_extent_args_process(argc, argv, 1, 1, "split_node",
+ "", CHECK_FS_RW | CHECK_FS_BITMAPS))
+ return;
+
+ retval = ext2fs_extent_node_split(current_handle);
+ if (retval) {
+ com_err(argv[0], retval, 0);
+ return;
+ }
+ generic_goto_node(NULL, argc, argv, EXT2_EXTENT_CURRENT);
+}
+
+void do_insert_node(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ const char *usage = "[--after] [--uninit] <lblk> <len> <pblk>";
+ errcode_t retval;
+ struct ext2fs_extent extent;
+ char *cmd;
+ int err;
+ int flags = 0;
+
+ if (common_extent_args_process(argc, argv, 3, 6, "insert_node",
+ usage, CHECK_FS_RW | CHECK_FS_BITMAPS))
+ return;
+
+ cmd = argv[0];
+
+ extent.e_flags = 0;
+
+ while (argc > 2) {
+ if (!strcmp(argv[1], "--after")) {
+ argc--;
+ argv++;
+ flags |= EXT2_EXTENT_INSERT_AFTER;
+ continue;
+ }
+ if (!strcmp(argv[1], "--uninit")) {
+ argc--;
+ argv++;
+ extent.e_flags |= EXT2_EXTENT_FLAGS_UNINIT;
+ continue;
+ }
+ break;
+ }
+
+ if (argc != 4) {
+ fprintf(stderr, "usage: %s %s\n", cmd, usage);
+ return;
+ }
+
+ err = strtoblk(cmd, argv[1], "logical block", &extent.e_lblk);
+ if (err)
+ return;
+
+ extent.e_len = parse_ulong(argv[2], cmd, "length", &err);
+ if (err)
+ return;
+
+ err = strtoblk(cmd, argv[3], "physical block", &extent.e_pblk);
+ if (err)
+ return;
+
+ retval = ext2fs_extent_insert(current_handle, flags, &extent);
+ if (retval) {
+ com_err(cmd, retval, 0);
+ return;
+ }
+ generic_goto_node(NULL, argc, argv, EXT2_EXTENT_CURRENT);
+}
+
+void do_set_bmap(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ const char *usage = "[--uninit] <lblk> <pblk>";
+ struct ext2fs_extent extent;
+ errcode_t retval;
+ blk64_t logical;
+ blk64_t physical;
+ char *cmd = argv[0];
+ int flags = 0;
+ int err;
+
+ if (common_extent_args_process(argc, argv, 3, 5, "set_bmap",
+ usage, CHECK_FS_RW | CHECK_FS_BITMAPS))
+ return;
+
+ if (argc > 2 && !strcmp(argv[1], "--uninit")) {
+ argc--;
+ argv++;
+ flags |= EXT2_EXTENT_SET_BMAP_UNINIT;
+ }
+
+ if (argc != 3) {
+ fprintf(stderr, "Usage: %s %s\n", cmd, usage);
+ return;
+ }
+
+ err = strtoblk(cmd, argv[1], "logical block", &logical);
+ if (err)
+ return;
+
+ err = strtoblk(cmd, argv[2], "physical block", &physical);
+ if (err)
+ return;
+
+ retval = ext2fs_extent_set_bmap(current_handle, logical,
+ physical, flags);
+ if (retval) {
+ com_err(cmd, retval, 0);
+ return;
+ }
+
+ retval = ext2fs_extent_get(current_handle, EXT2_EXTENT_CURRENT,
+ &extent);
+ if (retval)
+ return;
+ dbg_print_extent(0, &extent);
+}
+
+void do_print_all(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ const char *usage = "[--leaf-only|--reverse|--reverse-leaf]";
+ struct ext2fs_extent extent;
+ errcode_t retval;
+ errcode_t end_err = EXT2_ET_EXTENT_NO_NEXT;
+ int op = EXT2_EXTENT_NEXT;
+ int first_op = EXT2_EXTENT_ROOT;
+
+
+ if (common_extent_args_process(argc, argv, 1, 2, "print_all",
+ usage, 0))
+ return;
+
+ if (argc == 2) {
+ if (!strcmp(argv[1], "--leaf-only"))
+ op = EXT2_EXTENT_NEXT_LEAF;
+ else if (!strcmp(argv[1], "--reverse")) {
+ op = EXT2_EXTENT_PREV;
+ first_op = EXT2_EXTENT_LAST_LEAF;
+ end_err = EXT2_ET_EXTENT_NO_PREV;
+ } else if (!strcmp(argv[1], "--reverse-leaf")) {
+ op = EXT2_EXTENT_PREV_LEAF;
+ first_op = EXT2_EXTENT_LAST_LEAF;
+ end_err = EXT2_ET_EXTENT_NO_PREV;
+ } else {
+ fprintf(stderr, "Usage: %s %s\n", argv[0], usage);
+ return;
+ }
+ }
+
+ retval = ext2fs_extent_get(current_handle, first_op, &extent);
+ if (retval) {
+ com_err(argv[0], retval, 0);
+ return;
+ }
+ dbg_print_extent(0, &extent);
+
+ while (1) {
+ retval = ext2fs_extent_get(current_handle, op, &extent);
+ if (retval == end_err)
+ break;
+
+ if (retval) {
+ com_err(argv[0], retval, 0);
+ return;
+ }
+ dbg_print_extent(0, &extent);
+ }
+}
+
+void do_fix_parents(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ errcode_t retval;
+
+ if (common_extent_args_process(argc, argv, 1, 1, "fix_parents", "",
+ CHECK_FS_RW))
+ return;
+
+ retval = ext2fs_extent_fix_parents(current_handle);
+ if (retval) {
+ com_err(argv[0], retval, 0);
+ return;
+ }
+}
+
+void do_info(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ struct ext2fs_extent extent;
+ struct ext2_extent_info info;
+ errcode_t retval;
+
+ if (common_extent_args_process(argc, argv, 1, 1, "info", "", 0))
+ return;
+
+ retval = ext2fs_extent_get_info(current_handle, &info);
+ if (retval) {
+ com_err(argv[0], retval, 0);
+ return;
+ }
+
+ retval = ext2fs_extent_get(current_handle,
+ EXT2_EXTENT_CURRENT, &extent);
+ if (retval) {
+ com_err(argv[0], retval, 0);
+ return;
+ }
+
+ dbg_print_extent(0, &extent);
+
+ printf("Current handle location: %d/%d (max: %d, bytes %d), level %d/%d\n",
+ info.curr_entry, info.num_entries, info.max_entries,
+ info.bytes_avail, info.curr_level, info.max_depth);
+ printf("\tmax lblk: %llu, max pblk: %llu\n",
+ (unsigned long long) info.max_lblk,
+ (unsigned long long) info.max_pblk);
+ printf("\tmax_len: %u, max_uninit_len: %u\n", info.max_len,
+ info.max_uninit_len);
+}
+
+void do_goto_block(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ errcode_t retval;
+ blk64_t blk;
+ int level = 0, err;
+
+ if (common_extent_args_process(argc, argv, 2, 3, "goto_block",
+ "block [level]", 0))
+ return;
+
+ if (strtoblk(argv[0], argv[1], NULL, &blk))
+ return;
+
+ if (argc == 3) {
+ level = parse_ulong(argv[2], argv[0], "level", &err);
+ if (err)
+ return;
+ }
+
+ retval = ext2fs_extent_goto2(current_handle, level, (blk64_t) blk);
+
+ if (retval) {
+ com_err(argv[0], retval,
+ "while trying to go to block %llu, level %d",
+ (unsigned long long) blk, level);
+ return;
+ }
+
+ generic_goto_node(NULL, argc, argv, EXT2_EXTENT_CURRENT);
+}
diff --git a/debugfs/filefrag.c b/debugfs/filefrag.c
new file mode 100644
index 0000000..31c1440
--- /dev/null
+++ b/debugfs/filefrag.c
@@ -0,0 +1,330 @@
+/*
+ * filefrag.c --- display the fragmentation information for a file
+ *
+ * Copyright (C) 2011 Theodore Ts'o. This file may be redistributed
+ * under the terms of the GNU Public License.
+ */
+
+#include "config.h"
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <ctype.h>
+#include <string.h>
+#include <time.h>
+#ifdef HAVE_ERRNO_H
+#include <errno.h>
+#endif
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <utime.h>
+#ifdef HAVE_GETOPT_H
+#include <getopt.h>
+#else
+extern int optind;
+extern char *optarg;
+#endif
+
+#include "debugfs.h"
+
+#define VERBOSE_OPT 0x0001
+#define DIR_OPT 0x0002
+#define RECURSIVE_OPT 0x0004
+
+struct dir_list {
+ char *name;
+ ext2_ino_t ino;
+ struct dir_list *next;
+};
+
+struct filefrag_struct {
+ FILE *f;
+ const char *name;
+ const char *dir_name;
+ int options;
+ int logical_width;
+ int physical_width;
+ int ext;
+ int cont_ext;
+ e2_blkcnt_t num;
+ e2_blkcnt_t logical_start;
+ blk64_t physical_start;
+ blk64_t expected;
+ struct dir_list *dir_list, *dir_last;
+};
+
+static int int_log10(unsigned long long arg)
+{
+ int l = 0;
+
+ arg = arg / 10;
+ while (arg) {
+ l++;
+ arg = arg / 10;
+ }
+ return l;
+}
+
+static void print_header(struct filefrag_struct *fs)
+{
+ if (fs->options & VERBOSE_OPT) {
+ fprintf(fs->f, "%4s %*s %*s %*s %*s\n", "ext",
+ fs->logical_width, "logical", fs->physical_width,
+ "physical", fs->physical_width, "expected",
+ fs->logical_width, "length");
+ }
+}
+
+static void report_filefrag(struct filefrag_struct *fs)
+{
+ if (fs->num == 0)
+ return;
+ if (fs->options & VERBOSE_OPT) {
+ if (fs->expected)
+ fprintf(fs->f, "%4d %*lu %*llu %*llu %*lu\n", fs->ext,
+ fs->logical_width,
+ (unsigned long) fs->logical_start,
+ fs->physical_width,
+ (unsigned long long) fs->physical_start,
+ fs->physical_width,
+ (unsigned long long) fs->expected,
+ fs->logical_width, (unsigned long) fs->num);
+ else
+ fprintf(fs->f, "%4d %*lu %*llu %*s %*lu\n", fs->ext,
+ fs->logical_width,
+ (unsigned long) fs->logical_start,
+ fs->physical_width,
+ (unsigned long long) fs->physical_start,
+ fs->physical_width, "",
+ fs->logical_width, (unsigned long) fs->num);
+ }
+ fs->ext++;
+}
+
+static int filefrag_blocks_proc(ext2_filsys ext4_fs EXT2FS_ATTR((unused)),
+ blk64_t *blocknr, e2_blkcnt_t blockcnt,
+ blk64_t ref_block EXT2FS_ATTR((unused)),
+ int ref_offset EXT2FS_ATTR((unused)),
+ void *private)
+{
+ struct filefrag_struct *fs = private;
+
+ if (blockcnt < 0 || *blocknr == 0)
+ return 0;
+
+ if ((fs->num == 0) || (blockcnt != fs->logical_start + fs->num) ||
+ (*blocknr != fs->physical_start + fs->num)) {
+ report_filefrag(fs);
+ if (blockcnt == fs->logical_start + fs->num)
+ fs->expected = fs->physical_start + fs->num;
+ else
+ fs->expected = 0;
+ fs->logical_start = blockcnt;
+ fs->physical_start = *blocknr;
+ fs->num = 1;
+ fs->cont_ext++;
+ } else
+ fs->num++;
+ return 0;
+}
+
+static void filefrag(ext2_ino_t ino, struct ext2_inode *inode,
+ struct filefrag_struct *fs)
+{
+ errcode_t retval;
+ int blocksize = current_fs->blocksize;
+
+ fs->logical_width = int_log10((EXT2_I_SIZE(inode) + blocksize - 1) /
+ blocksize) + 1;
+ if (fs->logical_width < 7)
+ fs->logical_width = 7;
+ fs->ext = 0;
+ fs->cont_ext = 0;
+ fs->logical_start = 0;
+ fs->physical_start = 0;
+ fs->num = 0;
+
+ if (fs->options & VERBOSE_OPT) {
+ blk64_t num_blocks = ext2fs_inode_i_blocks(current_fs, inode);
+
+ if (!ext2fs_has_feature_huge_file(current_fs->super) ||
+ !(inode->i_flags & EXT4_HUGE_FILE_FL))
+ num_blocks /= current_fs->blocksize / 512;
+
+ fprintf(fs->f, "\n%s has %llu block(s), i_size is %llu\n",
+ fs->name, (unsigned long long) num_blocks,
+ (unsigned long long) EXT2_I_SIZE(inode));
+ }
+ print_header(fs);
+ if (ext2fs_inode_has_valid_blocks2(current_fs, inode)) {
+ retval = ext2fs_block_iterate3(current_fs, ino,
+ BLOCK_FLAG_READ_ONLY, NULL,
+ filefrag_blocks_proc, fs);
+ if (retval)
+ com_err("ext2fs_block_iterate3", retval, 0);
+ }
+
+ report_filefrag(fs);
+ fprintf(fs->f, "%s: %d contiguous extents%s\n", fs->name, fs->ext,
+ LINUX_S_ISDIR(inode->i_mode) ? " (dir)" : "");
+}
+
+static int filefrag_dir_proc(ext2_ino_t dir EXT2FS_ATTR((unused)),
+ int entry,
+ struct ext2_dir_entry *dirent,
+ int offset EXT2FS_ATTR((unused)),
+ int blocksize EXT2FS_ATTR((unused)),
+ char *buf EXT2FS_ATTR((unused)),
+ void *private)
+{
+ struct filefrag_struct *fs = private;
+ struct ext2_inode inode;
+ ext2_ino_t ino;
+ char name[EXT2_NAME_LEN + 1];
+ char *cp;
+ int thislen;
+
+ if (entry == DIRENT_DELETED_FILE)
+ return 0;
+
+ thislen = ext2fs_dirent_name_len(dirent);
+ strncpy(name, dirent->name, thislen);
+ name[thislen] = '\0';
+ ino = dirent->inode;
+
+ if (!strcmp(name, ".") || !strcmp(name, ".."))
+ return 0;
+
+ cp = malloc(strlen(fs->dir_name) + strlen(name) + 2);
+ if (!cp) {
+ fprintf(stderr, "Couldn't allocate memory for %s/%s\n",
+ fs->dir_name, name);
+ return 0;
+ }
+
+ sprintf(cp, "%s/%s", fs->dir_name, name);
+ fs->name = cp;
+
+ if (debugfs_read_inode(ino, &inode, fs->name))
+ goto errout;
+
+ filefrag(ino, &inode, fs);
+
+ if ((fs->options & RECURSIVE_OPT) && LINUX_S_ISDIR(inode.i_mode)) {
+ struct dir_list *p;
+
+ p = malloc(sizeof(struct dir_list));
+ if (!p) {
+ fprintf(stderr, "Couldn't allocate dir_list for %s\n",
+ fs->name);
+ goto errout;
+ }
+ memset(p, 0, sizeof(struct dir_list));
+ p->name = cp;
+ p->ino = ino;
+ if (fs->dir_last)
+ fs->dir_last->next = p;
+ else
+ fs->dir_list = p;
+ fs->dir_last = p;
+ return 0;
+ }
+errout:
+ free(cp);
+ fs->name = 0;
+ return 0;
+}
+
+
+static void dir_iterate(ext2_ino_t ino, struct filefrag_struct *fs)
+{
+ errcode_t retval;
+ struct dir_list *p = NULL;
+
+ fs->dir_name = fs->name;
+
+ while (1) {
+ retval = ext2fs_dir_iterate2(current_fs, ino, 0,
+ 0, filefrag_dir_proc, fs);
+ if (retval)
+ com_err("ext2fs_dir_iterate2", retval, 0);
+ if (p) {
+ free(p->name);
+ fs->dir_list = p->next;
+ if (!fs->dir_list)
+ fs->dir_last = 0;
+ free(p);
+ }
+ p = fs->dir_list;
+ if (!p)
+ break;
+ ino = p->ino;
+ fs->dir_name = p->name;
+ }
+}
+
+void do_filefrag(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ struct filefrag_struct fs;
+ struct ext2_inode inode;
+ ext2_ino_t ino;
+ int c;
+
+ memset(&fs, 0, sizeof(fs));
+ if (check_fs_open(argv[0]))
+ return;
+
+ reset_getopt();
+ while ((c = getopt(argc, argv, "dvr")) != EOF) {
+ switch (c) {
+ case 'd':
+ fs.options |= DIR_OPT;
+ break;
+ case 'v':
+ fs.options |= VERBOSE_OPT;
+ break;
+ case 'r':
+ fs.options |= RECURSIVE_OPT;
+ break;
+ default:
+ goto print_usage;
+ }
+ }
+
+ if (argc > optind+1) {
+ print_usage:
+ com_err(0, 0, "Usage: filefrag [-dvr] file");
+ return;
+ }
+
+ if (argc == optind) {
+ ino = cwd;
+ fs.name = ".";
+ } else {
+ ino = string_to_inode(argv[optind]);
+ fs.name = argv[optind];
+ }
+ if (!ino)
+ return;
+
+ if (debugfs_read_inode(ino, &inode, argv[0]))
+ return;
+
+ fs.f = open_pager();
+ fs.physical_width = int_log10(ext2fs_blocks_count(current_fs->super));
+ fs.physical_width++;
+ if (fs.physical_width < 8)
+ fs.physical_width = 8;
+
+ if (!LINUX_S_ISDIR(inode.i_mode) || (fs.options & DIR_OPT))
+ filefrag(ino, &inode, &fs);
+ else
+ dir_iterate(ino, &fs);
+
+ fprintf(fs.f, "\n");
+ close_pager(fs.f);
+
+ return;
+}
diff --git a/debugfs/htree.c b/debugfs/htree.c
new file mode 100644
index 0000000..a9f9211
--- /dev/null
+++ b/debugfs/htree.c
@@ -0,0 +1,488 @@
+/*
+ * htree.c --- hash tree routines
+ *
+ * Copyright (C) 2002 Theodore Ts'o. This file may be redistributed
+ * under the terms of the GNU Public License.
+ */
+
+#include "config.h"
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <ctype.h>
+#include <string.h>
+#include <time.h>
+#ifdef HAVE_ERRNO_H
+#include <errno.h>
+#endif
+#include <sys/types.h>
+#ifdef HAVE_GETOPT_H
+#include <getopt.h>
+#else
+extern int optind;
+extern char *optarg;
+#endif
+
+#include "debugfs.h"
+#include "uuid/uuid.h"
+#include "e2p/e2p.h"
+
+static FILE *pager;
+
+static void htree_dump_leaf_node(ext2_filsys fs, ext2_ino_t ino,
+ struct ext2_inode *inode,
+ struct ext2_dx_root_info * rootnode,
+ blk64_t blk, char *buf)
+{
+ errcode_t errcode;
+ struct ext2_dir_entry *dirent;
+ int thislen, col = 0;
+ unsigned int offset = 0;
+ char name[EXT2_NAME_LEN + 1];
+ char tmp[EXT2_NAME_LEN + 64];
+ blk64_t pblk;
+ ext2_dirhash_t hash, minor_hash;
+ unsigned int rec_len;
+ int hash_alg;
+ int hash_flags = inode->i_flags & EXT4_CASEFOLD_FL;
+ int csum_size = 0;
+
+ if (ext2fs_has_feature_metadata_csum(fs->super))
+ csum_size = sizeof(struct ext2_dir_entry_tail);
+
+ errcode = ext2fs_bmap2(fs, ino, inode, buf, 0, blk, 0, &pblk);
+ if (errcode) {
+ com_err("htree_dump_leaf_node", errcode,
+ "while mapping logical block %llu\n",
+ (unsigned long long) blk);
+ return;
+ }
+
+ fprintf(pager, "Reading directory block %llu, phys %llu\n",
+ (unsigned long long) blk, (unsigned long long) pblk);
+ errcode = ext2fs_read_dir_block4(current_fs, pblk, buf, 0, ino);
+ if (errcode) {
+ com_err("htree_dump_leaf_node", errcode,
+ "while reading block %llu (%llu)\n",
+ (unsigned long long) blk, (unsigned long long) pblk);
+ return;
+ }
+ hash_alg = rootnode->hash_version;
+ if ((hash_alg <= EXT2_HASH_TEA) &&
+ (fs->super->s_flags & EXT2_FLAGS_UNSIGNED_HASH))
+ hash_alg += 3;
+
+ while (offset < fs->blocksize) {
+ dirent = (struct ext2_dir_entry *) (buf + offset);
+ errcode = ext2fs_get_rec_len(fs, dirent, &rec_len);
+ if (errcode) {
+ com_err("htree_dump_leaf_inode", errcode,
+ "while getting rec_len for block %lu",
+ (unsigned long) blk);
+ return;
+ }
+ thislen = ext2fs_dirent_name_len(dirent);
+ if (((offset + rec_len) > fs->blocksize) ||
+ (rec_len < 8) ||
+ ((rec_len % 4) != 0) ||
+ ((unsigned) thislen + 8 > rec_len)) {
+ fprintf(pager, "Corrupted directory block (%llu)!\n",
+ (unsigned long long) blk);
+ break;
+ }
+ strncpy(name, dirent->name, thislen);
+ name[thislen] = '\0';
+ errcode = ext2fs_dirhash2(hash_alg, name, thislen,
+ fs->encoding, hash_flags,
+ fs->super->s_hash_seed,
+ &hash, &minor_hash);
+ if (errcode)
+ com_err("htree_dump_leaf_node", errcode,
+ "while calculating hash");
+ if ((offset == fs->blocksize - csum_size) &&
+ (dirent->inode == 0) &&
+ (dirent->rec_len == csum_size) &&
+ (dirent->name_len == EXT2_DIR_NAME_LEN_CSUM)) {
+ struct ext2_dir_entry_tail *t;
+
+ t = (struct ext2_dir_entry_tail *) dirent;
+
+ snprintf(tmp, EXT2_NAME_LEN + 64,
+ "leaf block checksum: 0x%08x ",
+ t->det_checksum);
+ } else {
+ snprintf(tmp, EXT2_NAME_LEN + 64,
+ "%u 0x%08x-%08x (%d) %s ",
+ dirent->inode, hash, minor_hash,
+ rec_len, name);
+ }
+ thislen = strlen(tmp);
+ if (col + thislen > 80) {
+ fprintf(pager, "\n");
+ col = 0;
+ }
+ fprintf(pager, "%s", tmp);
+ col += thislen;
+ offset += rec_len;
+ }
+ fprintf(pager, "\n");
+}
+
+
+static void htree_dump_int_block(ext2_filsys fs, ext2_ino_t ino,
+ struct ext2_inode *inode,
+ struct ext2_dx_root_info * rootnode,
+ blk64_t blk, char *buf, int level);
+
+
+static void htree_dump_int_node(ext2_filsys fs, ext2_ino_t ino,
+ struct ext2_inode *inode,
+ struct ext2_dx_root_info * rootnode,
+ struct ext2_dx_entry *ent, __u32 crc,
+ char *buf, int level)
+{
+ struct ext2_dx_countlimit dx_countlimit;
+ struct ext2_dx_tail *tail;
+ int hash, i;
+ int limit, count;
+ int remainder;
+
+ dx_countlimit = *((struct ext2_dx_countlimit *) ent);
+ count = ext2fs_le16_to_cpu(dx_countlimit.count);
+ limit = ext2fs_le16_to_cpu(dx_countlimit.limit);
+
+ fprintf(pager, "Number of entries (count): %d\n", count);
+ fprintf(pager, "Number of entries (limit): %d\n", limit);
+
+ remainder = fs->blocksize - (limit * sizeof(struct ext2_dx_entry));
+ if (ent == (struct ext2_dx_entry *)(rootnode + 1))
+ remainder -= sizeof(struct ext2_dx_root_info) + 24;
+ else
+ remainder -= 8;
+ if (ext2fs_has_feature_metadata_csum(fs->super) &&
+ remainder == sizeof(struct ext2_dx_tail)) {
+ tail = (struct ext2_dx_tail *)(ent + limit);
+ fprintf(pager, "Checksum: 0x%08x",
+ ext2fs_le32_to_cpu(tail->dt_checksum));
+ if (tail->dt_checksum != crc)
+ fprintf(pager, " --- EXPECTED: 0x%08x", crc);
+ fputc('\n', pager);
+ }
+
+ for (i=0; i < count; i++) {
+ hash = i ? ext2fs_le32_to_cpu(ent[i].hash) : 0;
+ fprintf(pager, "Entry #%d: Hash 0x%08x%s, block %u\n", i,
+ hash, (hash & 1) ? " (**)" : "",
+ ext2fs_le32_to_cpu(ent[i].block));
+ }
+
+ fprintf(pager, "\n");
+
+ for (i=0; i < count; i++) {
+ unsigned int hashval, block;
+
+ hashval = ext2fs_le32_to_cpu(ent[i].hash);
+ block = ext2fs_le32_to_cpu(ent[i].block);
+ fprintf(pager, "Entry #%d: Hash 0x%08x, block %u\n", i,
+ i ? hashval : 0, block);
+ if (level)
+ htree_dump_int_block(fs, ino, inode, rootnode,
+ block, buf, level-1);
+ else
+ htree_dump_leaf_node(fs, ino, inode, rootnode,
+ block, buf);
+ }
+
+ fprintf(pager, "---------------------\n");
+}
+
+static void htree_dump_int_block(ext2_filsys fs, ext2_ino_t ino,
+ struct ext2_inode *inode,
+ struct ext2_dx_root_info * rootnode,
+ blk64_t blk, char *buf, int level)
+{
+ char *cbuf;
+ errcode_t errcode;
+ blk64_t pblk;
+ __u32 crc;
+
+ cbuf = malloc(fs->blocksize);
+ if (!cbuf) {
+ fprintf(pager, "Couldn't allocate child block.\n");
+ return;
+ }
+
+ errcode = ext2fs_bmap2(fs, ino, inode, buf, 0, blk, 0, &pblk);
+ if (errcode) {
+ com_err("htree_dump_int_block", errcode,
+ "while mapping logical block %llu\n",
+ (unsigned long long) blk);
+ goto errout;
+ }
+
+ errcode = io_channel_read_blk64(current_fs->io, pblk, 1, buf);
+ if (errcode) {
+ com_err("htree_dump_int_block", errcode,
+ "while reading block %llu\n",
+ (unsigned long long) blk);
+ goto errout;
+ }
+
+ errcode = ext2fs_dx_csum(current_fs, ino,
+ (struct ext2_dir_entry *) buf, &crc, NULL);
+ if (errcode) {
+ com_err("htree_dump_int_block", errcode,
+ "while calculating checksum for logical block %llu\n",
+ (unsigned long long) blk);
+ crc = (unsigned int) -1;
+ }
+ htree_dump_int_node(fs, ino, inode, rootnode,
+ (struct ext2_dx_entry *) (buf+8),
+ crc, cbuf, level);
+errout:
+ free(cbuf);
+}
+
+
+
+void do_htree_dump(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ ext2_ino_t ino;
+ struct ext2_inode inode;
+ blk64_t blk;
+ char *buf = NULL;
+ struct ext2_dx_root_info *rootnode;
+ struct ext2_dx_entry *ent;
+ errcode_t errcode;
+ __u32 crc;
+
+ if (check_fs_open(argv[0]))
+ return;
+
+ pager = open_pager();
+
+ if (common_inode_args_process(argc, argv, &ino, 0))
+ goto errout;
+
+ if (debugfs_read_inode(ino, &inode, argv[1]))
+ goto errout;
+
+ if (!LINUX_S_ISDIR(inode.i_mode)) {
+ com_err(argv[0], 0, "Not a directory");
+ goto errout;
+ }
+
+ if ((inode.i_flags & EXT2_BTREE_FL) == 0) {
+ com_err(argv[0], 0, "Not a hash-indexed directory");
+ goto errout;
+ }
+
+ buf = malloc(2*current_fs->blocksize);
+ if (!buf) {
+ com_err(argv[0], 0, "Couldn't allocate htree buffer");
+ goto errout;
+ }
+
+ errcode = ext2fs_bmap2(current_fs, ino, &inode, buf, 0, 0, 0, &blk);
+ if (errcode) {
+ com_err("do_htree_block", errcode,
+ "while mapping logical block 0\n");
+ goto errout;
+ }
+
+ errcode = io_channel_read_blk64(current_fs->io, blk,
+ 1, buf);
+ if (errcode) {
+ com_err(argv[0], errcode, "Error reading root node");
+ goto errout;
+ }
+
+ rootnode = (struct ext2_dx_root_info *) (buf + 24);
+
+ fprintf(pager, "Root node dump:\n");
+ fprintf(pager, "\t Reserved zero: %u\n", rootnode->reserved_zero);
+ fprintf(pager, "\t Hash Version: %d\n", rootnode->hash_version);
+ fprintf(pager, "\t Info length: %d\n", rootnode->info_length);
+ fprintf(pager, "\t Indirect levels: %d\n", rootnode->indirect_levels);
+ fprintf(pager, "\t Flags: %#x\n", rootnode->unused_flags);
+
+ ent = (struct ext2_dx_entry *)
+ ((char *)rootnode + rootnode->info_length);
+
+ errcode = ext2fs_dx_csum(current_fs, ino,
+ (struct ext2_dir_entry *) buf, &crc, NULL);
+ if (errcode) {
+ com_err("htree_dump_int_block", errcode,
+ "while calculating checksum for htree root\n");
+ crc = (unsigned int) -1;
+ }
+ htree_dump_int_node(current_fs, ino, &inode, rootnode, ent, crc,
+ buf + current_fs->blocksize,
+ rootnode->indirect_levels);
+
+errout:
+ free(buf);
+ close_pager(pager);
+}
+
+/*
+ * This function prints the hash of a given file.
+ */
+void do_dx_hash(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ ext2_dirhash_t hash, minor_hash;
+ errcode_t err;
+ int c;
+ int hash_version = 0;
+ __u32 hash_seed[4];
+ int hash_flags = 0;
+ const struct ext2fs_nls_table *encoding = NULL;
+
+ hash_seed[0] = hash_seed[1] = hash_seed[2] = hash_seed[3] = 0;
+
+ reset_getopt();
+ while ((c = getopt(argc, argv, "h:s:ce:")) != EOF) {
+ switch (c) {
+ case 'h':
+ hash_version = e2p_string2hash(optarg);
+ if (hash_version < 0)
+ hash_version = atoi(optarg);
+ break;
+ case 's':
+ if (uuid_parse(optarg, (unsigned char *) hash_seed)) {
+ fprintf(stderr, "Invalid UUID format: %s\n",
+ optarg);
+ return;
+ }
+ break;
+ case 'c':
+ hash_flags |= EXT4_CASEFOLD_FL;
+ break;
+ case 'e':
+ encoding = ext2fs_load_nls_table(e2p_str2encoding(optarg));
+ if (!encoding) {
+ fprintf(stderr, "Invalid encoding: %s\n",
+ optarg);
+ return;
+ }
+ break;
+ default:
+ goto print_usage;
+ }
+ }
+ if (optind != argc-1) {
+ print_usage:
+ com_err(argv[0], 0, "usage: dx_hash [-h hash_alg] "
+ "[-s hash_seed] [-c] [-e encoding] filename");
+ return;
+ }
+ err = ext2fs_dirhash2(hash_version, argv[optind],
+ strlen(argv[optind]), encoding, hash_flags,
+ hash_seed, &hash, &minor_hash);
+
+ if (err) {
+ com_err(argv[0], err, "while calculating hash");
+ return;
+ }
+ printf("Hash of %s is 0x%0x (minor 0x%0x)\n", argv[optind],
+ hash, minor_hash);
+}
+
+/*
+ * Search for particular directory entry (useful for debugging very
+ * large hash tree directories that have lost some blocks from the
+ * btree index).
+ */
+struct process_block_struct {
+ char *search_name;
+ char *buf;
+ int len;
+};
+
+static int search_dir_block(ext2_filsys fs, blk64_t *blocknr,
+ e2_blkcnt_t blockcnt, blk64_t ref_blk,
+ int ref_offset, void *priv_data);
+
+void do_dirsearch(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ ext2_ino_t inode;
+ struct process_block_struct pb;
+
+ if (check_fs_open(argv[0]))
+ return;
+
+ if (argc != 3) {
+ com_err(0, 0, "Usage: dirsearch dir filename");
+ return;
+ }
+
+ inode = string_to_inode(argv[1]);
+ if (!inode)
+ return;
+
+ pb.buf = malloc(current_fs->blocksize);
+ if (!pb.buf) {
+ com_err("dirsearch", 0, "Couldn't allocate buffer");
+ return;
+ }
+ pb.search_name = argv[2];
+ pb.len = strlen(pb.search_name);
+
+ ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, 0,
+ search_dir_block, &pb);
+
+ free(pb.buf);
+}
+
+
+static int search_dir_block(ext2_filsys fs, blk64_t *blocknr,
+ e2_blkcnt_t blockcnt,
+ blk64_t ref_blk EXT2FS_ATTR((unused)),
+ int ref_offset EXT2FS_ATTR((unused)),
+ void *priv_data)
+{
+ struct process_block_struct *p;
+ struct ext2_dir_entry *dirent;
+ errcode_t errcode;
+ unsigned int offset = 0;
+ unsigned int rec_len;
+
+ if (blockcnt < 0)
+ return 0;
+
+ p = (struct process_block_struct *) priv_data;
+
+ errcode = io_channel_read_blk64(current_fs->io, *blocknr, 1, p->buf);
+ if (errcode) {
+ com_err("search_dir_block", errcode,
+ "while reading block %lu", (unsigned long) *blocknr);
+ return BLOCK_ABORT;
+ }
+
+ while (offset < fs->blocksize) {
+ dirent = (struct ext2_dir_entry *) (p->buf + offset);
+ errcode = ext2fs_get_rec_len(fs, dirent, &rec_len);
+ if (errcode) {
+ com_err("htree_dump_leaf_inode", errcode,
+ "while getting rec_len for block %lu",
+ (unsigned long) *blocknr);
+ return BLOCK_ABORT;
+ }
+ if (dirent->inode &&
+ p->len == ext2fs_dirent_name_len(dirent) &&
+ strncmp(p->search_name, dirent->name,
+ p->len) == 0) {
+ printf("Entry found at logical block %lld, "
+ "phys %llu, offset %u\n", (long long)blockcnt,
+ (unsigned long long) *blocknr, offset);
+ printf("offset %u\n", offset);
+ return BLOCK_ABORT;
+ }
+ offset += rec_len;
+ }
+ return 0;
+}
+
diff --git a/debugfs/icheck.c b/debugfs/icheck.c
new file mode 100644
index 0000000..ed6e950
--- /dev/null
+++ b/debugfs/icheck.c
@@ -0,0 +1,176 @@
+/*
+ * icheck.c --- given a list of blocks, generate a list of inodes
+ *
+ * Copyright (C) 1994 Theodore Ts'o. This file may be redistributed
+ * under the terms of the GNU Public License.
+ */
+
+#include "config.h"
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <ctype.h>
+#include <string.h>
+#include <time.h>
+#ifdef HAVE_ERRNO_H
+#include <errno.h>
+#endif
+#include <sys/types.h>
+
+#include "debugfs.h"
+
+struct block_info {
+ blk64_t blk;
+ ext2_ino_t ino;
+};
+
+struct block_walk_struct {
+ struct block_info *barray;
+ e2_blkcnt_t blocks_left;
+ e2_blkcnt_t num_blocks;
+ ext2_ino_t inode;
+};
+
+static int icheck_proc(ext2_filsys fs EXT2FS_ATTR((unused)),
+ blk64_t *block_nr,
+ e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
+ blk64_t ref_block EXT2FS_ATTR((unused)),
+ int ref_offset EXT2FS_ATTR((unused)),
+ void *private)
+{
+ struct block_walk_struct *bw = (struct block_walk_struct *) private;
+ e2_blkcnt_t i;
+
+ for (i=0; i < bw->num_blocks; i++) {
+ if (!bw->barray[i].ino && bw->barray[i].blk == *block_nr) {
+ bw->barray[i].ino = bw->inode;
+ bw->blocks_left--;
+ }
+ }
+ if (!bw->blocks_left)
+ return BLOCK_ABORT;
+
+ return 0;
+}
+
+void do_icheck(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ struct block_walk_struct bw;
+ struct block_info *binfo;
+ int i;
+ ext2_inode_scan scan = 0;
+ ext2_ino_t ino;
+ struct ext2_inode inode;
+ errcode_t retval;
+ char *block_buf;
+
+ if (argc < 2) {
+ com_err(argv[0], 0, "Usage: icheck <block number> ...");
+ return;
+ }
+ if (check_fs_open(argv[0]))
+ return;
+
+ bw.barray = malloc(sizeof(struct block_info) * argc);
+ if (!bw.barray) {
+ com_err("icheck", ENOMEM,
+ "while allocating inode info array");
+ return;
+ }
+ memset(bw.barray, 0, sizeof(struct block_info) * argc);
+
+ block_buf = malloc(current_fs->blocksize * 3);
+ if (!block_buf) {
+ com_err("icheck", ENOMEM, "while allocating block buffer");
+ goto error_out;
+ }
+
+ for (i=1; i < argc; i++) {
+ if (strtoblk(argv[0], argv[i], NULL, &bw.barray[i-1].blk))
+ goto error_out;
+ }
+
+ bw.num_blocks = bw.blocks_left = argc-1;
+
+ retval = ext2fs_open_inode_scan(current_fs, 0, &scan);
+ if (retval) {
+ com_err("icheck", retval, "while opening inode scan");
+ goto error_out;
+ }
+
+ do {
+ retval = ext2fs_get_next_inode(scan, &ino, &inode);
+ } while (retval == EXT2_ET_BAD_BLOCK_IN_INODE_TABLE);
+ if (retval) {
+ com_err("icheck", retval, "while starting inode scan");
+ goto error_out;
+ }
+
+ while (ino) {
+ blk64_t blk;
+
+ if (!inode.i_links_count)
+ goto next;
+
+ bw.inode = ino;
+
+ blk = ext2fs_file_acl_block(current_fs, &inode);
+ if (blk) {
+ icheck_proc(current_fs, &blk, 0,
+ 0, 0, &bw);
+ if (bw.blocks_left == 0)
+ break;
+ ext2fs_file_acl_block_set(current_fs, &inode, blk);
+ }
+
+ if (!ext2fs_inode_has_valid_blocks2(current_fs, &inode))
+ goto next;
+ /*
+ * To handle filesystems touched by 0.3c extfs; can be
+ * removed later.
+ */
+ if (inode.i_dtime)
+ goto next;
+
+ retval = ext2fs_block_iterate3(current_fs, ino,
+ BLOCK_FLAG_READ_ONLY, block_buf,
+ icheck_proc, &bw);
+ if (retval) {
+ com_err("icheck", retval,
+ "while calling ext2fs_block_iterate");
+ goto next;
+ }
+
+ if (bw.blocks_left == 0)
+ break;
+
+ next:
+ do {
+ retval = ext2fs_get_next_inode(scan, &ino, &inode);
+ } while (retval == EXT2_ET_BAD_BLOCK_IN_INODE_TABLE);
+ if (retval) {
+ com_err("icheck", retval,
+ "while doing inode scan");
+ goto error_out;
+ }
+ }
+
+ printf("Block\tInode number\n");
+ for (i=0, binfo = bw.barray; i < bw.num_blocks; i++, binfo++) {
+ if (binfo->ino == 0) {
+ printf("%llu\t<block not found>\n",
+ (unsigned long long) binfo->blk);
+ continue;
+ }
+ printf("%llu\t%u\n", (unsigned long long) binfo->blk,
+ binfo->ino);
+ }
+
+error_out:
+ free(bw.barray);
+ free(block_buf);
+ if (scan)
+ ext2fs_close_inode_scan(scan);
+ return;
+}
diff --git a/debugfs/journal.c b/debugfs/journal.c
new file mode 100644
index 0000000..5bac0d3
--- /dev/null
+++ b/debugfs/journal.c
@@ -0,0 +1,947 @@
+/*
+ * journal.c --- code for handling the "ext3" journal
+ *
+ * Copyright (C) 2000 Andreas Dilger
+ * Copyright (C) 2000 Theodore Ts'o
+ *
+ * Parts of the code are based on fs/jfs/journal.c by Stephen C. Tweedie
+ * Copyright (C) 1999 Red Hat Software
+ *
+ * This file may be redistributed under the terms of the
+ * GNU General Public License version 2 or at your discretion
+ * any later version.
+ */
+
+#include "config.h"
+#ifdef HAVE_SYS_MOUNT_H
+#include <sys/param.h>
+#include <sys/mount.h>
+#define MNT_FL (MS_MGC_VAL | MS_RDONLY)
+#endif
+#ifdef HAVE_SYS_STAT_H
+#include <sys/stat.h>
+#endif
+
+#define E2FSCK_INCLUDE_INLINE_FUNCS
+#include "uuid/uuid.h"
+#include "journal.h"
+
+static int bh_count = 0;
+
+#if EXT2_FLAT_INCLUDES
+#include "blkid.h"
+#else
+#include "blkid/blkid.h"
+#endif
+
+/*
+ * Define USE_INODE_IO to use the inode_io.c / fileio.c codepaths.
+ * This creates a larger static binary, and a smaller binary using
+ * shared libraries. It's also probably slightly less CPU-efficient,
+ * which is why it's not on by default. But, it's a good way of
+ * testing the functions in inode_io.c and fileio.c.
+ */
+#undef USE_INODE_IO
+
+/* Checksumming functions */
+static int ext2fs_journal_verify_csum_type(journal_t *j,
+ journal_superblock_t *jsb)
+{
+ if (!jbd2_journal_has_csum_v2or3(j))
+ return 1;
+
+ return jsb->s_checksum_type == JBD2_CRC32C_CHKSUM;
+}
+
+static __u32 ext2fs_journal_sb_csum(journal_superblock_t *jsb)
+{
+ __u32 crc, old_crc;
+
+ old_crc = jsb->s_checksum;
+ jsb->s_checksum = 0;
+ crc = ext2fs_crc32c_le(~0, (unsigned char *)jsb,
+ sizeof(journal_superblock_t));
+ jsb->s_checksum = old_crc;
+
+ return crc;
+}
+
+static int ext2fs_journal_sb_csum_verify(journal_t *j,
+ journal_superblock_t *jsb)
+{
+ __u32 provided, calculated;
+
+ if (!jbd2_journal_has_csum_v2or3(j))
+ return 1;
+
+ provided = ext2fs_be32_to_cpu(jsb->s_checksum);
+ calculated = ext2fs_journal_sb_csum(jsb);
+
+ return provided == calculated;
+}
+
+static errcode_t ext2fs_journal_sb_csum_set(journal_t *j,
+ journal_superblock_t *jsb)
+{
+ __u32 crc;
+
+ if (!jbd2_journal_has_csum_v2or3(j))
+ return 0;
+
+ crc = ext2fs_journal_sb_csum(jsb);
+ jsb->s_checksum = ext2fs_cpu_to_be32(crc);
+ return 0;
+}
+
+/* Kernel compatibility functions for handling the journal. These allow us
+ * to use the recovery.c file virtually unchanged from the kernel, so we
+ * don't have to do much to keep kernel and user recovery in sync.
+ */
+int jbd2_journal_bmap(journal_t *journal, unsigned long block,
+ unsigned long long *phys)
+{
+#ifdef USE_INODE_IO
+ *phys = block;
+ return 0;
+#else
+ struct inode *inode = journal->j_inode;
+ errcode_t retval;
+ blk64_t pblk;
+
+ if (!inode) {
+ *phys = block;
+ return 0;
+ }
+
+ retval = ext2fs_bmap2(inode->i_fs, inode->i_ino,
+ &inode->i_ext2, NULL, 0, (blk64_t) block,
+ 0, &pblk);
+ *phys = pblk;
+ return (int) retval;
+#endif
+}
+
+struct buffer_head *getblk(kdev_t kdev, unsigned long long blocknr,
+ int blocksize)
+{
+ struct buffer_head *bh;
+ int bufsize = sizeof(*bh) + kdev->k_fs->blocksize -
+ sizeof(bh->b_data);
+ errcode_t retval;
+
+ retval = ext2fs_get_memzero(bufsize, &bh);
+ if (retval)
+ return NULL;
+
+ if (journal_enable_debug >= 3)
+ bh_count++;
+ jfs_debug(4, "getblk for block %llu (%d bytes)(total %d)\n",
+ blocknr, blocksize, bh_count);
+
+ bh->b_fs = kdev->k_fs;
+ if (kdev->k_dev == K_DEV_FS)
+ bh->b_io = kdev->k_fs->io;
+ else
+ bh->b_io = kdev->k_fs->journal_io;
+ bh->b_size = blocksize;
+ bh->b_blocknr = blocknr;
+
+ return bh;
+}
+
+int sync_blockdev(kdev_t kdev)
+{
+ io_channel io;
+
+ if (kdev->k_dev == K_DEV_FS)
+ io = kdev->k_fs->io;
+ else
+ io = kdev->k_fs->journal_io;
+
+ return io_channel_flush(io) ? EIO : 0;
+}
+
+void ll_rw_block(int rw, int op_flags EXT2FS_ATTR((unused)), int nr,
+ struct buffer_head *bhp[])
+{
+ errcode_t retval;
+ struct buffer_head *bh;
+
+ for (; nr > 0; --nr) {
+ bh = *bhp++;
+ if (rw == REQ_OP_READ && !bh->b_uptodate) {
+ jfs_debug(3, "reading block %llu/%p\n",
+ bh->b_blocknr, (void *) bh);
+ retval = io_channel_read_blk64(bh->b_io,
+ bh->b_blocknr,
+ 1, bh->b_data);
+ if (retval) {
+ com_err(bh->b_fs->device_name, retval,
+ "while reading block %llu\n",
+ bh->b_blocknr);
+ bh->b_err = (int) retval;
+ continue;
+ }
+ bh->b_uptodate = 1;
+ } else if (rw == REQ_OP_WRITE && bh->b_dirty) {
+ jfs_debug(3, "writing block %llu/%p\n",
+ bh->b_blocknr,
+ (void *) bh);
+ retval = io_channel_write_blk64(bh->b_io,
+ bh->b_blocknr,
+ 1, bh->b_data);
+ if (retval) {
+ com_err(bh->b_fs->device_name, retval,
+ "while writing block %llu\n",
+ bh->b_blocknr);
+ bh->b_err = (int) retval;
+ continue;
+ }
+ bh->b_dirty = 0;
+ bh->b_uptodate = 1;
+ } else {
+ jfs_debug(3, "no-op %s for block %llu\n",
+ rw == REQ_OP_READ ? "read" : "write",
+ bh->b_blocknr);
+ }
+ }
+}
+
+void mark_buffer_dirty(struct buffer_head *bh)
+{
+ bh->b_dirty = 1;
+}
+
+static void mark_buffer_clean(struct buffer_head *bh)
+{
+ bh->b_dirty = 0;
+}
+
+void brelse(struct buffer_head *bh)
+{
+ if (bh->b_dirty)
+ ll_rw_block(REQ_OP_WRITE, 0, 1, &bh);
+ jfs_debug(3, "freeing block %llu/%p (total %d)\n",
+ bh->b_blocknr, (void *) bh, --bh_count);
+ ext2fs_free_mem(&bh);
+}
+
+int buffer_uptodate(struct buffer_head *bh)
+{
+ return bh->b_uptodate;
+}
+
+void mark_buffer_uptodate(struct buffer_head *bh, int val)
+{
+ bh->b_uptodate = val;
+}
+
+void wait_on_buffer(struct buffer_head *bh)
+{
+ if (!bh->b_uptodate)
+ ll_rw_block(REQ_OP_READ, 0, 1, &bh);
+}
+
+
+static void ext2fs_clear_recover(ext2_filsys fs, int error)
+{
+ ext2fs_clear_feature_journal_needs_recovery(fs->super);
+
+ /* if we had an error doing journal recovery, we need a full fsck */
+ if (error)
+ fs->super->s_state &= ~EXT2_VALID_FS;
+ /*
+ * If we replayed the journal by definition the file system
+ * was mounted since the last time it was checked
+ */
+ if (fs->super->s_lastcheck >= fs->super->s_mtime)
+ fs->super->s_lastcheck = fs->super->s_mtime - 1;
+ ext2fs_mark_super_dirty(fs);
+}
+
+/*
+ * This is a helper function to check the validity of the journal.
+ */
+struct process_block_struct {
+ e2_blkcnt_t last_block;
+};
+
+static int process_journal_block(ext2_filsys fs,
+ blk64_t *block_nr,
+ e2_blkcnt_t blockcnt,
+ blk64_t ref_block EXT2FS_ATTR((unused)),
+ int ref_offset EXT2FS_ATTR((unused)),
+ void *priv_data)
+{
+ struct process_block_struct *p;
+ blk64_t blk = *block_nr;
+
+ p = (struct process_block_struct *) priv_data;
+
+ if (!blk || blk < fs->super->s_first_data_block ||
+ blk >= ext2fs_blocks_count(fs->super))
+ return BLOCK_ABORT;
+
+ if (blockcnt >= 0)
+ p->last_block = blockcnt;
+ return 0;
+}
+
+static errcode_t ext2fs_get_journal(ext2_filsys fs, journal_t **ret_journal)
+{
+ struct process_block_struct pb;
+ struct ext2_super_block *sb = fs->super;
+ struct ext2_super_block jsuper;
+ struct buffer_head *bh;
+ struct inode *j_inode = NULL;
+ struct kdev_s *dev_fs = NULL, *dev_journal;
+ const char *journal_name = 0;
+ journal_t *journal = NULL;
+ errcode_t retval = 0;
+ io_manager io_ptr = 0;
+ unsigned long long start = 0;
+ int ext_journal = 0;
+ int tried_backup_jnl = 0;
+
+ retval = ext2fs_get_memzero(sizeof(journal_t), &journal);
+ if (retval)
+ return retval;
+
+ retval = ext2fs_get_memzero(2 * sizeof(struct kdev_s), &dev_fs);
+ if (retval)
+ goto errout;
+ dev_journal = dev_fs+1;
+
+ dev_fs->k_fs = dev_journal->k_fs = fs;
+ dev_fs->k_dev = K_DEV_FS;
+ dev_journal->k_dev = K_DEV_JOURNAL;
+
+ journal->j_dev = dev_journal;
+ journal->j_fs_dev = dev_fs;
+ journal->j_inode = NULL;
+ journal->j_blocksize = fs->blocksize;
+
+ if (uuid_is_null(sb->s_journal_uuid)) {
+ if (!sb->s_journal_inum) {
+ retval = EXT2_ET_BAD_INODE_NUM;
+ goto errout;
+ }
+ retval = ext2fs_get_memzero(sizeof(*j_inode), &j_inode);
+ if (retval)
+ goto errout;
+
+ j_inode->i_fs = fs;
+ j_inode->i_ino = sb->s_journal_inum;
+
+ retval = ext2fs_read_inode(fs, sb->s_journal_inum,
+ &j_inode->i_ext2);
+ if (retval) {
+try_backup_journal:
+ if (sb->s_jnl_backup_type != EXT3_JNL_BACKUP_BLOCKS ||
+ tried_backup_jnl)
+ goto errout;
+ memset(&j_inode->i_ext2, 0, sizeof(struct ext2_inode));
+ memcpy(&j_inode->i_ext2.i_block[0], sb->s_jnl_blocks,
+ EXT2_N_BLOCKS*4);
+ j_inode->i_ext2.i_size_high = sb->s_jnl_blocks[15];
+ j_inode->i_ext2.i_size = sb->s_jnl_blocks[16];
+ j_inode->i_ext2.i_links_count = 1;
+ j_inode->i_ext2.i_mode = LINUX_S_IFREG | 0600;
+ tried_backup_jnl++;
+ }
+ if (!j_inode->i_ext2.i_links_count ||
+ !LINUX_S_ISREG(j_inode->i_ext2.i_mode)) {
+ retval = EXT2_ET_NO_JOURNAL;
+ goto try_backup_journal;
+ }
+ if (EXT2_I_SIZE(&j_inode->i_ext2) / journal->j_blocksize <
+ JBD2_MIN_JOURNAL_BLOCKS) {
+ retval = EXT2_ET_JOURNAL_TOO_SMALL;
+ goto try_backup_journal;
+ }
+ pb.last_block = -1;
+ retval = ext2fs_block_iterate3(fs, j_inode->i_ino,
+ BLOCK_FLAG_HOLE, 0,
+ process_journal_block, &pb);
+ if ((pb.last_block + 1) * fs->blocksize <
+ (int) EXT2_I_SIZE(&j_inode->i_ext2)) {
+ retval = EXT2_ET_JOURNAL_TOO_SMALL;
+ goto try_backup_journal;
+ }
+ if (tried_backup_jnl && (fs->flags & EXT2_FLAG_RW)) {
+ retval = ext2fs_write_inode(fs, sb->s_journal_inum,
+ &j_inode->i_ext2);
+ if (retval)
+ goto errout;
+ }
+
+ journal->j_total_len = EXT2_I_SIZE(&j_inode->i_ext2) /
+ journal->j_blocksize;
+
+#ifdef USE_INODE_IO
+ retval = ext2fs_inode_io_intern2(fs, sb->s_journal_inum,
+ &j_inode->i_ext2,
+ &journal_name);
+ if (retval)
+ goto errout;
+
+ io_ptr = inode_io_manager;
+#else
+ journal->j_inode = j_inode;
+ fs->journal_io = fs->io;
+ retval = (errcode_t) jbd2_journal_bmap(journal, 0, &start);
+ if (retval)
+ goto errout;
+#endif
+ } else {
+ ext_journal = 1;
+ if (!fs->journal_name) {
+ char uuid[37];
+ blkid_cache blkid;
+
+ blkid_get_cache(&blkid, NULL);
+ uuid_unparse(sb->s_journal_uuid, uuid);
+ fs->journal_name = blkid_get_devname(blkid,
+ "UUID", uuid);
+ if (!fs->journal_name)
+ fs->journal_name = blkid_devno_to_devname(sb->s_journal_dev);
+ blkid_put_cache(blkid);
+ }
+ journal_name = fs->journal_name;
+
+ if (!journal_name) {
+ retval = EXT2_ET_LOAD_EXT_JOURNAL;
+ goto errout;
+ }
+
+ jfs_debug(1, "Using journal file %s\n", journal_name);
+ io_ptr = unix_io_manager;
+ }
+
+#if 0
+ test_io_backing_manager = io_ptr;
+ io_ptr = test_io_manager;
+#endif
+#ifndef USE_INODE_IO
+ if (ext_journal)
+#endif
+ {
+ retval = io_ptr->open(journal_name, fs->flags & EXT2_FLAG_RW,
+ &fs->journal_io);
+ }
+ if (retval)
+ goto errout;
+
+ io_channel_set_blksize(fs->journal_io, fs->blocksize);
+
+ if (ext_journal) {
+ blk64_t maxlen;
+
+ start = ext2fs_journal_sb_start(fs->blocksize) - 1;
+ bh = getblk(dev_journal, start, fs->blocksize);
+ if (!bh) {
+ retval = EXT2_ET_NO_MEMORY;
+ goto errout;
+ }
+ ll_rw_block(REQ_OP_READ, 0, 1, &bh);
+ retval = bh->b_err;
+ if (retval) {
+ brelse(bh);
+ goto errout;
+ }
+ memcpy(&jsuper, start ? bh->b_data :
+ bh->b_data + SUPERBLOCK_OFFSET,
+ sizeof(jsuper));
+#ifdef WORDS_BIGENDIAN
+ if (jsuper.s_magic == ext2fs_swab16(EXT2_SUPER_MAGIC))
+ ext2fs_swap_super(&jsuper);
+#endif
+ if (jsuper.s_magic != EXT2_SUPER_MAGIC ||
+ !ext2fs_has_feature_journal_dev(&jsuper)) {
+ retval = EXT2_ET_LOAD_EXT_JOURNAL;
+ brelse(bh);
+ goto errout;
+ }
+ /* Make sure the journal UUID is correct */
+ if (memcmp(jsuper.s_uuid, fs->super->s_journal_uuid,
+ sizeof(jsuper.s_uuid))) {
+ retval = EXT2_ET_LOAD_EXT_JOURNAL;
+ brelse(bh);
+ goto errout;
+ }
+
+ /* Check the superblock checksum */
+ if (ext2fs_has_feature_metadata_csum(&jsuper)) {
+ struct struct_ext2_filsys fsx;
+ struct ext2_super_block superx;
+ void *p;
+
+ p = start ? bh->b_data : bh->b_data + SUPERBLOCK_OFFSET;
+ memcpy(&fsx, fs, sizeof(fsx));
+ memcpy(&superx, fs->super, sizeof(superx));
+ fsx.super = &superx;
+ ext2fs_set_feature_metadata_csum(fsx.super);
+ if (!ext2fs_superblock_csum_verify(&fsx, p)) {
+ retval = EXT2_ET_LOAD_EXT_JOURNAL;
+ brelse(bh);
+ goto errout;
+ }
+ }
+ brelse(bh);
+
+ maxlen = ext2fs_blocks_count(&jsuper);
+ journal->j_total_len = (maxlen < 1ULL << 32) ? maxlen :
+ (1ULL << 32) - 1;
+ start++;
+ }
+
+ bh = getblk(dev_journal, start, journal->j_blocksize);
+ if (!bh) {
+ retval = EXT2_ET_NO_MEMORY;
+ goto errout;
+ }
+
+ journal->j_sb_buffer = bh;
+ journal->j_superblock = (journal_superblock_t *)bh->b_data;
+
+#ifdef USE_INODE_IO
+ if (j_inode)
+ ext2fs_free_mem(&j_inode);
+#endif
+
+ *ret_journal = journal;
+ return 0;
+
+errout:
+ if (dev_fs)
+ ext2fs_free_mem(&dev_fs);
+ if (j_inode)
+ ext2fs_free_mem(&j_inode);
+ if (journal)
+ ext2fs_free_mem(&journal);
+ return retval;
+}
+
+static errcode_t ext2fs_journal_fix_bad_inode(ext2_filsys fs)
+{
+ struct ext2_super_block *sb = fs->super;
+ int recover = ext2fs_has_feature_journal_needs_recovery(fs->super);
+ int has_journal = ext2fs_has_feature_journal(fs->super);
+
+ if (has_journal || sb->s_journal_inum) {
+ /* The journal inode is bogus, remove and force full fsck */
+ return EXT2_ET_BAD_INODE_NUM;
+ } else if (recover) {
+ return EXT2_ET_UNSUPP_FEATURE;
+ }
+ return 0;
+}
+
+#define V1_SB_SIZE 0x0024
+static void clear_v2_journal_fields(journal_t *journal)
+{
+ ext2_filsys fs = journal->j_dev->k_fs;
+
+ memset(((char *) journal->j_superblock) + V1_SB_SIZE, 0,
+ fs->blocksize-V1_SB_SIZE);
+ mark_buffer_dirty(journal->j_sb_buffer);
+}
+
+
+static errcode_t ext2fs_journal_load(journal_t *journal)
+{
+ ext2_filsys fs = journal->j_dev->k_fs;
+ journal_superblock_t *jsb;
+ struct buffer_head *jbh = journal->j_sb_buffer;
+
+ ll_rw_block(REQ_OP_READ, 0, 1, &jbh);
+ if (jbh->b_err)
+ return jbh->b_err;
+
+ jsb = journal->j_superblock;
+ /* If we don't even have JBD2_MAGIC, we probably have a wrong inode */
+ if (jsb->s_header.h_magic != htonl(JBD2_MAGIC_NUMBER))
+ return ext2fs_journal_fix_bad_inode(fs);
+
+ switch (ntohl(jsb->s_header.h_blocktype)) {
+ case JBD2_SUPERBLOCK_V1:
+ journal->j_format_version = 1;
+ if (jsb->s_feature_compat ||
+ jsb->s_feature_incompat ||
+ jsb->s_feature_ro_compat ||
+ jsb->s_nr_users)
+ clear_v2_journal_fields(journal);
+ break;
+
+ case JBD2_SUPERBLOCK_V2:
+ journal->j_format_version = 2;
+ if (ntohl(jsb->s_nr_users) > 1 &&
+ uuid_is_null(fs->super->s_journal_uuid))
+ clear_v2_journal_fields(journal);
+ if (ntohl(jsb->s_nr_users) > 1)
+ return EXT2_ET_JOURNAL_UNSUPP_VERSION;
+ break;
+
+ /*
+ * These should never appear in a journal super block, so if
+ * they do, the journal is badly corrupted.
+ */
+ case JBD2_DESCRIPTOR_BLOCK:
+ case JBD2_COMMIT_BLOCK:
+ case JBD2_REVOKE_BLOCK:
+ return EXT2_ET_CORRUPT_JOURNAL_SB;
+
+ /* If we don't understand the superblock major type, but there
+ * is a magic number, then it is likely to be a new format we
+ * just don't understand, so leave it alone. */
+ default:
+ return EXT2_ET_JOURNAL_UNSUPP_VERSION;
+ }
+
+ if (JBD2_HAS_INCOMPAT_FEATURE(journal, ~JBD2_KNOWN_INCOMPAT_FEATURES))
+ return EXT2_ET_UNSUPP_FEATURE;
+
+ if (JBD2_HAS_RO_COMPAT_FEATURE(journal, ~JBD2_KNOWN_ROCOMPAT_FEATURES))
+ return EXT2_ET_RO_UNSUPP_FEATURE;
+
+ /* Checksum v1-3 are mutually exclusive features. */
+ if (jbd2_has_feature_csum2(journal) && jbd2_has_feature_csum3(journal))
+ return EXT2_ET_CORRUPT_JOURNAL_SB;
+
+ if (jbd2_journal_has_csum_v2or3(journal) &&
+ jbd2_has_feature_checksum(journal))
+ return EXT2_ET_CORRUPT_JOURNAL_SB;
+
+ if (!ext2fs_journal_verify_csum_type(journal, jsb) ||
+ !ext2fs_journal_sb_csum_verify(journal, jsb))
+ return EXT2_ET_CORRUPT_JOURNAL_SB;
+
+ if (jbd2_journal_has_csum_v2or3(journal))
+ journal->j_csum_seed = jbd2_chksum(journal, ~0, jsb->s_uuid,
+ sizeof(jsb->s_uuid));
+
+ /* We have now checked whether we know enough about the journal
+ * format to be able to proceed safely, so any other checks that
+ * fail we should attempt to recover from. */
+ if (jsb->s_blocksize != htonl(journal->j_blocksize))
+ return EXT2_ET_CORRUPT_JOURNAL_SB;
+
+ if (ntohl(jsb->s_maxlen) < journal->j_total_len)
+ journal->j_total_len = ntohl(jsb->s_maxlen);
+ else if (ntohl(jsb->s_maxlen) > journal->j_total_len)
+ return EXT2_ET_CORRUPT_JOURNAL_SB;
+
+ journal->j_tail_sequence = ntohl(jsb->s_sequence);
+ journal->j_transaction_sequence = journal->j_tail_sequence;
+ journal->j_tail = ntohl(jsb->s_start);
+ journal->j_first = ntohl(jsb->s_first);
+ journal->j_last = ntohl(jsb->s_maxlen);
+
+ return 0;
+}
+
+static void ext2fs_journal_release(ext2_filsys fs, journal_t *journal,
+ int reset, int drop)
+{
+ journal_superblock_t *jsb;
+
+ if (drop)
+ mark_buffer_clean(journal->j_sb_buffer);
+ else if (fs->flags & EXT2_FLAG_RW) {
+ jsb = journal->j_superblock;
+ jsb->s_sequence = htonl(journal->j_tail_sequence);
+ if (reset)
+ jsb->s_start = 0; /* this marks the journal as empty */
+ ext2fs_journal_sb_csum_set(journal, jsb);
+ mark_buffer_dirty(journal->j_sb_buffer);
+ }
+ brelse(journal->j_sb_buffer);
+
+ if (fs && fs->journal_io) {
+ if (fs->io != fs->journal_io)
+ io_channel_close(fs->journal_io);
+ fs->journal_io = NULL;
+ free(fs->journal_name);
+ fs->journal_name = NULL;
+ }
+
+#ifndef USE_INODE_IO
+ if (journal->j_inode)
+ ext2fs_free_mem(&journal->j_inode);
+#endif
+ if (journal->j_fs_dev)
+ ext2fs_free_mem(&journal->j_fs_dev);
+ ext2fs_free_mem(&journal);
+}
+
+/*
+ * This function makes sure that the superblock fields regarding the
+ * journal are consistent.
+ */
+static errcode_t ext2fs_check_ext3_journal(ext2_filsys fs)
+{
+ struct ext2_super_block *sb = fs->super;
+ journal_t *journal;
+ int recover = ext2fs_has_feature_journal_needs_recovery(fs->super);
+ errcode_t retval;
+
+ /* If we don't have any journal features, don't do anything more */
+ if (!ext2fs_has_feature_journal(sb) &&
+ !recover && sb->s_journal_inum == 0 && sb->s_journal_dev == 0 &&
+ uuid_is_null(sb->s_journal_uuid))
+ return 0;
+
+ retval = ext2fs_get_journal(fs, &journal);
+ if (retval)
+ return retval;
+
+ retval = ext2fs_journal_load(journal);
+ if (retval)
+ goto err;
+
+ /*
+ * We want to make the flags consistent here. We will not leave with
+ * needs_recovery set but has_journal clear. We can't get in a loop
+ * with -y, -n, or -p, only if a user isn't making up their mind.
+ */
+ if (!ext2fs_has_feature_journal(sb)) {
+ retval = EXT2_ET_JOURNAL_FLAGS_WRONG;
+ goto err;
+ }
+
+ if (ext2fs_has_feature_journal(sb) &&
+ !ext2fs_has_feature_journal_needs_recovery(sb) &&
+ journal->j_superblock->s_start != 0) {
+ retval = EXT2_ET_JOURNAL_FLAGS_WRONG;
+ goto err;
+ }
+
+ /*
+ * If we don't need to do replay the journal, check to see if
+ * the journal's errno is set; if so, we need to mark the file
+ * system as being corrupt and clear the journal's s_errno.
+ */
+ if (!ext2fs_has_feature_journal_needs_recovery(sb) &&
+ journal->j_superblock->s_errno) {
+ fs->super->s_state |= EXT2_ERROR_FS;
+ ext2fs_mark_super_dirty(fs);
+ journal->j_superblock->s_errno = 0;
+ ext2fs_journal_sb_csum_set(journal, journal->j_superblock);
+ mark_buffer_dirty(journal->j_sb_buffer);
+ }
+
+err:
+ ext2fs_journal_release(fs, journal, 0, retval ? 1 : 0);
+ return retval;
+}
+
+static errcode_t recover_ext3_journal(ext2_filsys fs)
+{
+ journal_t *journal;
+ errcode_t retval;
+
+ retval = jbd2_journal_init_revoke_record_cache();
+ if (retval)
+ return retval;
+
+ retval = jbd2_journal_init_revoke_table_cache();
+ if (retval)
+ return retval;
+
+ retval = ext2fs_get_journal(fs, &journal);
+ if (retval)
+ return retval;
+
+ retval = ext2fs_journal_load(journal);
+ if (retval)
+ goto errout;
+
+ retval = jbd2_journal_init_revoke(journal, 1024);
+ if (retval)
+ goto errout;
+
+ retval = -jbd2_journal_recover(journal);
+ if (retval)
+ goto errout;
+
+ if (journal->j_failed_commit) {
+ journal->j_superblock->s_errno = -EINVAL;
+ mark_buffer_dirty(journal->j_sb_buffer);
+ }
+
+ journal->j_tail_sequence = journal->j_transaction_sequence;
+
+errout:
+ jbd2_journal_destroy_revoke(journal);
+ jbd2_journal_destroy_revoke_record_cache();
+ jbd2_journal_destroy_revoke_table_cache();
+ ext2fs_journal_release(fs, journal, 1, 0);
+ return retval;
+}
+
+errcode_t ext2fs_run_ext3_journal(ext2_filsys *fsp)
+{
+ ext2_filsys fs = *fsp;
+ io_manager io_ptr = fs->io->manager;
+ errcode_t retval, recover_retval;
+ io_stats stats = 0;
+ unsigned long long kbytes_written = 0;
+ char *fsname;
+ int fsflags;
+ int fsblocksize;
+
+ if (!(fs->flags & EXT2_FLAG_RW))
+ return EXT2_ET_FILE_RO;
+
+ if (fs->flags & EXT2_FLAG_DIRTY)
+ ext2fs_flush(fs); /* Force out any modifications */
+
+ recover_retval = recover_ext3_journal(fs);
+
+ /*
+ * Reload the filesystem context to get up-to-date data from disk
+ * because journal recovery will change the filesystem under us.
+ */
+ if (fs->super->s_kbytes_written &&
+ fs->io->manager->get_stats)
+ fs->io->manager->get_stats(fs->io, &stats);
+ if (stats && stats->bytes_written)
+ kbytes_written = stats->bytes_written >> 10;
+
+ ext2fs_mmp_stop(fs);
+ fsname = fs->device_name;
+ fs->device_name = NULL;
+ fsflags = fs->flags;
+ fsblocksize = fs->blocksize;
+ ext2fs_free(fs);
+ *fsp = NULL;
+ retval = ext2fs_open(fsname, fsflags, 0, fsblocksize, io_ptr, fsp);
+ ext2fs_free_mem(&fsname);
+ if (retval)
+ return retval;
+
+ fs = *fsp;
+ fs->flags |= EXT2_FLAG_MASTER_SB_ONLY;
+ fs->super->s_kbytes_written += kbytes_written;
+
+ /* Set the superblock flags */
+ ext2fs_clear_recover(fs, recover_retval != 0);
+
+ /*
+ * Do one last sanity check, and propagate journal->s_errno to
+ * the EXT2_ERROR_FS flag in the fs superblock if needed.
+ */
+ retval = ext2fs_check_ext3_journal(fs);
+ return retval ? retval : recover_retval;
+}
+
+errcode_t ext2fs_open_journal(ext2_filsys fs, journal_t **j)
+{
+ journal_t *journal;
+ errcode_t retval;
+
+ retval = jbd2_journal_init_revoke_record_cache();
+ if (retval)
+ return retval;
+
+ retval = jbd2_journal_init_revoke_table_cache();
+ if (retval)
+ return retval;
+
+ retval = ext2fs_get_journal(fs, &journal);
+ if (retval)
+ return retval;
+
+ retval = ext2fs_journal_load(journal);
+ if (retval)
+ goto errout;
+
+ retval = jbd2_journal_init_revoke(journal, 1024);
+ if (retval)
+ goto errout;
+
+ if (journal->j_failed_commit) {
+ journal->j_superblock->s_errno = -EINVAL;
+ mark_buffer_dirty(journal->j_sb_buffer);
+ }
+
+ *j = journal;
+ return 0;
+
+errout:
+ jbd2_journal_destroy_revoke(journal);
+ jbd2_journal_destroy_revoke_record_cache();
+ jbd2_journal_destroy_revoke_table_cache();
+ ext2fs_journal_release(fs, journal, 1, 0);
+ return retval;
+}
+
+errcode_t ext2fs_close_journal(ext2_filsys fs, journal_t **j)
+{
+ journal_t *journal = *j;
+
+ jbd2_journal_destroy_revoke(journal);
+ jbd2_journal_destroy_revoke_record_cache();
+ jbd2_journal_destroy_revoke_table_cache();
+ ext2fs_journal_release(fs, journal, 0, 0);
+ *j = NULL;
+
+ return 0;
+}
+
+void jbd2_commit_block_csum_set(journal_t *j, struct buffer_head *bh)
+{
+ struct commit_header *h;
+ __u32 csum;
+
+ if (!jbd2_journal_has_csum_v2or3(j))
+ return;
+
+ h = (struct commit_header *)(bh->b_data);
+ h->h_chksum_type = 0;
+ h->h_chksum_size = 0;
+ h->h_chksum[0] = 0;
+ csum = jbd2_chksum(j, j->j_csum_seed, bh->b_data, j->j_blocksize);
+ h->h_chksum[0] = ext2fs_cpu_to_be32(csum);
+}
+
+void jbd2_revoke_csum_set(journal_t *j, struct buffer_head *bh)
+{
+ jbd2_descr_block_csum_set(j, bh);
+}
+
+void jbd2_descr_block_csum_set(journal_t *j, struct buffer_head *bh)
+{
+ struct jbd2_journal_block_tail *tail;
+ __u32 csum;
+
+ if (!jbd2_journal_has_csum_v2or3(j))
+ return;
+
+ tail = (struct jbd2_journal_block_tail *)(bh->b_data + j->j_blocksize -
+ sizeof(struct jbd2_journal_block_tail));
+ tail->t_checksum = 0;
+ csum = jbd2_chksum(j, j->j_csum_seed, bh->b_data, j->j_blocksize);
+ tail->t_checksum = ext2fs_cpu_to_be32(csum);
+}
+
+void jbd2_block_tag_csum_set(journal_t *j, journal_block_tag_t *tag,
+ struct buffer_head *bh, __u32 sequence)
+{
+ journal_block_tag3_t *tag3 = (journal_block_tag3_t *)tag;
+ __u32 csum32;
+ __be32 seq;
+
+ if (!jbd2_journal_has_csum_v2or3(j))
+ return;
+
+ seq = ext2fs_cpu_to_be32(sequence);
+ csum32 = jbd2_chksum(j, j->j_csum_seed, (__u8 *)&seq, sizeof(seq));
+ csum32 = jbd2_chksum(j, csum32, bh->b_data, bh->b_size);
+
+ if (jbd2_has_feature_csum3(j))
+ tag3->t_checksum = ext2fs_cpu_to_be32(csum32);
+ else
+ tag->t_checksum = ext2fs_cpu_to_be16(csum32);
+}
+
diff --git a/debugfs/journal.h b/debugfs/journal.h
new file mode 100644
index 0000000..10b638e
--- /dev/null
+++ b/debugfs/journal.h
@@ -0,0 +1,25 @@
+/*
+ * journal.h
+ *
+ * Copyright (C) 2000 Andreas Dilger
+ * Copyright (C) 2000 Theodore Ts'o
+ *
+ * Parts of the code are based on fs/jfs/journal.c by Stephen C. Tweedie
+ * Copyright (C) 1999 Red Hat Software
+ *
+ * This file may be redistributed under the terms of the
+ * GNU General Public License version 2 or at your discretion
+ * any later version.
+ */
+
+#include "jfs_user.h"
+
+/* journal.c */
+errcode_t ext2fs_open_journal(ext2_filsys fs, journal_t **j);
+errcode_t ext2fs_close_journal(ext2_filsys fs, journal_t **j);
+errcode_t ext2fs_run_ext3_journal(ext2_filsys *fs);
+void jbd2_commit_block_csum_set(journal_t *j, struct buffer_head *bh);
+void jbd2_revoke_csum_set(journal_t *j, struct buffer_head *bh);
+void jbd2_descr_block_csum_set(journal_t *j, struct buffer_head *bh);
+void jbd2_block_tag_csum_set(journal_t *j, journal_block_tag_t *tag,
+ struct buffer_head *bh, __u32 sequence);
diff --git a/debugfs/logdump.c b/debugfs/logdump.c
new file mode 100644
index 0000000..b600228
--- /dev/null
+++ b/debugfs/logdump.c
@@ -0,0 +1,933 @@
+/*
+ * logdump.c --- dump the contents of the journal out to a file
+ *
+ * Author: Stephen C. Tweedie, 2001 <sct@redhat.com>
+ * Copyright (C) 2001 Red Hat, Inc.
+ * Based on portions Copyright (C) 1994 Theodore Ts'o.
+ *
+ * This file may be redistributed under the terms of the GNU Public
+ * License.
+ */
+
+#include "config.h"
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <ctype.h>
+#include <string.h>
+#include <time.h>
+#ifdef HAVE_ERRNO_H
+#include <errno.h>
+#endif
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <utime.h>
+#ifdef HAVE_GETOPT_H
+#include <getopt.h>
+#else
+extern int optind;
+extern char *optarg;
+#endif
+
+#include "debugfs.h"
+#include "blkid/blkid.h"
+#include "jfs_user.h"
+#if __GNUC_PREREQ (4, 6)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wunused-function"
+#endif
+#include "ext2fs/fast_commit.h"
+#if __GNUC_PREREQ (4, 6)
+#pragma GCC diagnostic pop
+#endif
+#include <uuid/uuid.h>
+
+enum journal_location {JOURNAL_IS_INTERNAL, JOURNAL_IS_EXTERNAL};
+
+#define ANY_BLOCK ((blk64_t) -1)
+
+static int dump_all, dump_super, dump_old, dump_contents, dump_descriptors;
+static int64_t dump_counts;
+static blk64_t block_to_dump, bitmap_to_dump, inode_block_to_dump;
+static unsigned int group_to_dump, inode_offset_to_dump;
+static ext2_ino_t inode_to_dump;
+
+struct journal_source
+{
+ enum journal_location where;
+ int fd;
+ ext2_file_t file;
+};
+
+static void dump_journal(char *, FILE *, struct journal_source *);
+
+static void dump_descriptor_block(FILE *, struct journal_source *,
+ char *, journal_superblock_t *,
+ unsigned int *, unsigned int, __u32, tid_t);
+
+static void dump_revoke_block(FILE *, char *, journal_superblock_t *,
+ unsigned int, unsigned int, tid_t);
+
+static void dump_metadata_block(FILE *, struct journal_source *,
+ journal_superblock_t*,
+ unsigned int, unsigned int, unsigned int,
+ unsigned int, tid_t);
+
+static void dump_fc_block(FILE *out_file, char *buf, int blocksize,
+ tid_t transaction, int *fc_done);
+
+static void do_hexdump (FILE *, char *, int);
+
+#define WRAP(jsb, blocknr, maxlen) \
+ if (blocknr >= (maxlen)) \
+ blocknr -= (maxlen - be32_to_cpu((jsb)->s_first));
+
+void do_logdump(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ int c;
+ int retval;
+ char *out_fn;
+ FILE *out_file;
+
+ char *inode_spec = NULL;
+ char *journal_fn = NULL;
+ int journal_fd = -1;
+ int use_sb = 0;
+ ext2_ino_t journal_inum;
+ struct ext2_inode journal_inode;
+ ext2_file_t journal_file = NULL;
+ char *tmp;
+ struct journal_source journal_source;
+ struct ext2_super_block *es = NULL;
+
+ journal_source.where = JOURNAL_IS_INTERNAL;
+ journal_source.fd = 0;
+ journal_source.file = 0;
+ dump_all = 0;
+ dump_old = 0;
+ dump_contents = 0;
+ dump_super = 0;
+ dump_descriptors = 1;
+ block_to_dump = ANY_BLOCK;
+ bitmap_to_dump = -1;
+ inode_block_to_dump = ANY_BLOCK;
+ inode_to_dump = -1;
+ dump_counts = -1;
+
+ reset_getopt();
+ while ((c = getopt (argc, argv, "ab:ci:f:OsSn:")) != EOF) {
+ switch (c) {
+ case 'a':
+ dump_all++;
+ break;
+ case 'b':
+ block_to_dump = strtoul(optarg, &tmp, 0);
+ if (*tmp) {
+ com_err(argv[0], 0,
+ "Bad block number - %s", optarg);
+ return;
+ }
+ dump_descriptors = 0;
+ break;
+ case 'c':
+ dump_contents++;
+ break;
+ case 'f':
+ journal_fn = optarg;
+ break;
+ case 'i':
+ inode_spec = optarg;
+ dump_descriptors = 0;
+ break;
+ case 'O':
+ dump_old++;
+ break;
+ case 's':
+ use_sb++;
+ break;
+ case 'S':
+ dump_super++;
+ break;
+ case 'n':
+ dump_counts = strtol(optarg, &tmp, 10);
+ if (*tmp) {
+ com_err(argv[0], 0,
+ "Bad log counts number - %s", optarg);
+ return;
+ }
+ break;
+ default:
+ goto print_usage;
+ }
+ }
+ if (optind != argc && optind != argc-1) {
+ goto print_usage;
+ }
+
+ if (inode_spec) {
+ int inode_group, group_offset, inodes_per_block;
+
+ if (check_fs_open(argv[0]))
+ return;
+
+ inode_to_dump = string_to_inode(inode_spec);
+ if (!inode_to_dump)
+ return;
+
+ es = current_fs->super;
+ inode_group = ((inode_to_dump - 1)
+ / es->s_inodes_per_group);
+ group_offset = ((inode_to_dump - 1)
+ % es->s_inodes_per_group);
+ inodes_per_block = (current_fs->blocksize
+ / sizeof(struct ext2_inode));
+
+ inode_block_to_dump =
+ ext2fs_inode_table_loc(current_fs, inode_group) +
+ (group_offset / inodes_per_block);
+ inode_offset_to_dump = ((group_offset % inodes_per_block)
+ * sizeof(struct ext2_inode));
+ printf("Inode %u is at group %u, block %llu, offset %u\n",
+ inode_to_dump, inode_group,
+ (unsigned long long) inode_block_to_dump,
+ inode_offset_to_dump);
+ }
+
+ if (optind == argc) {
+ out_file = stdout;
+ } else {
+ out_fn = argv[optind];
+ out_file = fopen(out_fn, "w");
+ if (!out_file) {
+ com_err(argv[0], errno, "while opening %s for logdump",
+ out_fn);
+ goto cleanup;
+ }
+ }
+
+ if (block_to_dump != ANY_BLOCK) {
+ if (check_fs_open(argv[0]))
+ goto cleanup;
+ es = current_fs->super;
+ group_to_dump = ((block_to_dump -
+ es->s_first_data_block)
+ / es->s_blocks_per_group);
+ bitmap_to_dump = ext2fs_block_bitmap_loc(current_fs, group_to_dump);
+ }
+
+ if (journal_fn) {
+ /* Set up to read journal from a regular file somewhere */
+ journal_fd = open(journal_fn, O_RDONLY, 0);
+ if (journal_fd < 0) {
+ com_err(argv[0], errno, "while opening %s for logdump",
+ journal_fn);
+ goto cleanup;
+ }
+ journal_source.where = JOURNAL_IS_EXTERNAL;
+ journal_source.fd = journal_fd;
+ dump_journal(argv[0], out_file, &journal_source);
+ goto cleanup;
+
+ }
+ if (check_fs_open(argv[0]))
+ goto cleanup;
+ es = current_fs->super;
+
+ if ((journal_inum = es->s_journal_inum)) {
+ if (use_sb) {
+ if (es->s_jnl_backup_type != EXT3_JNL_BACKUP_BLOCKS) {
+ com_err(argv[0], 0,
+ "no journal backup in super block\n");
+ goto cleanup;
+ }
+ memset(&journal_inode, 0, sizeof(struct ext2_inode));
+ memcpy(&journal_inode.i_block[0], es->s_jnl_blocks,
+ EXT2_N_BLOCKS*4);
+ journal_inode.i_size_high = es->s_jnl_blocks[15];
+ journal_inode.i_size = es->s_jnl_blocks[16];
+ journal_inode.i_links_count = 1;
+ journal_inode.i_mode = LINUX_S_IFREG | 0600;
+ } else {
+ if (debugfs_read_inode(journal_inum, &journal_inode,
+ argv[0]))
+ goto cleanup;
+ }
+
+ retval = ext2fs_file_open2(current_fs, journal_inum,
+ &journal_inode, 0, &journal_file);
+ if (retval) {
+ com_err(argv[0], retval, "while opening ext2 file");
+ goto cleanup;
+ }
+ journal_source.where = JOURNAL_IS_INTERNAL;
+ journal_source.file = journal_file;
+ } else {
+ char uuid[37];
+
+ uuid_unparse(es->s_journal_uuid, uuid);
+ journal_fn = blkid_get_devname(NULL, "UUID", uuid);
+ if (!journal_fn)
+ journal_fn = blkid_devno_to_devname(es->s_journal_dev);
+ if (!journal_fn) {
+ com_err(argv[0], 0, "filesystem has no journal");
+ goto cleanup;
+ }
+ journal_fd = open(journal_fn, O_RDONLY, 0);
+ if (journal_fd < 0) {
+ com_err(argv[0], errno, "while opening %s for logdump",
+ journal_fn);
+ free(journal_fn);
+ goto cleanup;
+ }
+ fprintf(out_file, "Using external journal found at %s\n",
+ journal_fn);
+ free(journal_fn);
+ journal_source.where = JOURNAL_IS_EXTERNAL;
+ journal_source.fd = journal_fd;
+ }
+ dump_journal(argv[0], out_file, &journal_source);
+cleanup:
+ if (journal_fd >= 0)
+ close(journal_fd);
+ if (journal_file)
+ ext2fs_file_close(journal_file);
+ if (out_file && (out_file != stdout))
+ fclose(out_file);
+
+ return;
+
+print_usage:
+ fprintf(stderr, "%s: Usage: logdump [-acsOS] [-n<num_trans>] [-b<block>] [-i<filespec>]\n\t"
+ "[-f<journal_file>] [output_file]\n", argv[0]);
+}
+
+
+static int read_journal_block(const char *cmd, struct journal_source *source,
+ ext2_loff_t offset, char *buf, unsigned int size)
+{
+ int retval;
+ unsigned int got;
+
+ if (source->where == JOURNAL_IS_EXTERNAL) {
+ if (lseek(source->fd, offset, SEEK_SET) < 0) {
+ retval = errno;
+ goto seek_err;
+ }
+ retval = read(source->fd, buf, size);
+ if (retval < 0) {
+ retval = errno;
+ goto read_err;
+ }
+ got = retval;
+ retval = 0;
+ } else {
+ retval = ext2fs_file_llseek(source->file, offset,
+ EXT2_SEEK_SET, NULL);
+ if (retval) {
+ seek_err:
+ com_err(cmd, retval, "while seeking in reading journal");
+ return retval;
+ }
+ retval = ext2fs_file_read(source->file, buf, size, &got);
+ if (retval) {
+ read_err:
+ com_err(cmd, retval, "while reading journal");
+ return retval;
+ }
+ }
+ if (got != size) {
+ com_err(cmd, 0, "short read (read %u, expected %u) "
+ "while reading journal", got, size);
+ retval = -1;
+ }
+ return retval;
+}
+
+static const char *type_to_name(int btype)
+{
+ switch (btype) {
+ case JBD2_DESCRIPTOR_BLOCK:
+ return "descriptor block";
+ case JBD2_COMMIT_BLOCK:
+ return "commit block";
+ case JBD2_SUPERBLOCK_V1:
+ return "V1 superblock";
+ case JBD2_SUPERBLOCK_V2:
+ return "V2 superblock";
+ case JBD2_REVOKE_BLOCK:
+ return "revoke table";
+ }
+ return "unrecognised type";
+}
+
+
+static void dump_journal(char *cmdname, FILE *out_file,
+ struct journal_source *source)
+{
+ struct ext2_super_block *sb;
+ char jsb_buffer[1024];
+ char buf[EXT2_MAX_BLOCK_SIZE];
+ journal_superblock_t *jsb;
+ unsigned int blocksize = 1024;
+ int retval;
+ __u32 magic, sequence, blocktype;
+ journal_header_t *header;
+ tid_t transaction;
+ unsigned int blocknr = 0;
+ unsigned int first_transaction_blocknr;
+ int fc_done;
+ __u64 total_len;
+ __u32 maxlen;
+ int64_t cur_counts = 0;
+ bool exist_no_magic = false;
+
+ /* First, check to see if there's an ext2 superblock header */
+ retval = read_journal_block(cmdname, source, 0, buf, 2048);
+ if (retval)
+ return;
+
+ jsb = (journal_superblock_t *) buf;
+ sb = (struct ext2_super_block *) (buf+1024);
+#ifdef WORDS_BIGENDIAN
+ if (sb->s_magic == ext2fs_swab16(EXT2_SUPER_MAGIC))
+ ext2fs_swap_super(sb);
+#endif
+
+ if ((be32_to_cpu(jsb->s_header.h_magic) != JBD2_MAGIC_NUMBER) &&
+ (sb->s_magic == EXT2_SUPER_MAGIC) &&
+ ext2fs_has_feature_journal_dev(sb)) {
+ blocksize = EXT2_BLOCK_SIZE(sb);
+ blocknr = (blocksize == 1024) ? 2 : 1;
+ uuid_unparse(sb->s_uuid, jsb_buffer);
+ fprintf(out_file, "Ext2 superblock header found.\n");
+ if (dump_all) {
+ fprintf(out_file, "\tuuid=%s\n", jsb_buffer);
+ fprintf(out_file, "\tblocksize=%d\n", blocksize);
+ fprintf(out_file, "\tjournal data size %lu\n",
+ (unsigned long) ext2fs_blocks_count(sb));
+ }
+ }
+
+ /* Next, read the journal superblock */
+ retval = read_journal_block(cmdname, source,
+ ((ext2_loff_t) blocknr) * blocksize,
+ jsb_buffer, 1024);
+ if (retval)
+ return;
+
+ if (dump_super) {
+ e2p_list_journal_super(out_file, jsb_buffer,
+ current_fs->blocksize, 0);
+ fputc('\n', out_file);
+ }
+
+ jsb = (journal_superblock_t *) jsb_buffer;
+ if (be32_to_cpu(jsb->s_header.h_magic) != JBD2_MAGIC_NUMBER) {
+ fprintf(out_file,
+ "Journal superblock magic number invalid!\n");
+ return;
+ }
+ blocksize = be32_to_cpu(jsb->s_blocksize);
+ if ((current_fs && (blocksize != current_fs->blocksize)) ||
+ (!current_fs && (!blocksize || (blocksize & (blocksize - 1)) ||
+ (blocksize > EXT2_MAX_BLOCK_SIZE)))) {
+ fprintf(out_file,
+ "Journal block size invalid: %u (%u)\n",
+ be32_to_cpu(jsb->s_blocksize), blocksize);
+ return;
+ }
+ transaction = be32_to_cpu(jsb->s_sequence);
+ blocknr = be32_to_cpu(jsb->s_start);
+ if (source->where == JOURNAL_IS_INTERNAL) {
+ retval = ext2fs_file_get_lsize(source->file, &total_len);
+ if (retval) {
+ stat_err:
+ com_err("dump_journal", retval,
+ "while getting journal inode size");
+ return;
+ }
+ total_len /= blocksize;
+ } else {
+ struct stat st;
+
+ if (fstat(source->fd, &st) < 0)
+ goto stat_err;
+ total_len = st.st_size / blocksize;
+ }
+ maxlen = be32_to_cpu(jsb->s_maxlen);
+ if (maxlen > total_len)
+ maxlen = total_len;
+
+ fprintf(out_file, "Journal starts at block %u, transaction %u\n",
+ blocknr, transaction);
+
+ if (!blocknr) {
+ /* Empty journal, nothing to do. */
+ if (!dump_old)
+ goto fc;
+ else
+ blocknr = 1;
+ }
+
+ first_transaction_blocknr = blocknr;
+
+ while (1) {
+ if (dump_old && (dump_counts != -1) && (cur_counts >= dump_counts))
+ break;
+
+ if ((blocknr == first_transaction_blocknr) &&
+ (cur_counts != 0) && dump_old && (dump_counts != -1)) {
+ fprintf(out_file, "Dump all %lld journal records.\n",
+ (long long) cur_counts);
+ break;
+ }
+
+ retval = read_journal_block(cmdname, source,
+ ((ext2_loff_t) blocknr) * blocksize,
+ buf, blocksize);
+ if (retval)
+ break;
+
+ header = (journal_header_t *) buf;
+
+ magic = be32_to_cpu(header->h_magic);
+ sequence = be32_to_cpu(header->h_sequence);
+ blocktype = be32_to_cpu(header->h_blocktype);
+
+ if (magic != JBD2_MAGIC_NUMBER) {
+ if (exist_no_magic == false) {
+ exist_no_magic = true;
+ fprintf(out_file, "No magic number at block %u: "
+ "end of journal.\n", blocknr);
+ }
+ if (dump_old && (dump_counts != -1)) {
+ blocknr++;
+ WRAP(jsb, blocknr, maxlen);
+ continue;
+ }
+ break;
+ }
+
+ if (sequence != transaction) {
+ fprintf (out_file, "Found sequence %u (not %u) at "
+ "block %u: end of journal.\n",
+ sequence, transaction, blocknr);
+ if (!dump_old)
+ break;
+ }
+
+ if (dump_descriptors) {
+ fprintf (out_file, "Found expected sequence %u, "
+ "type %u (%s) at block %u\n",
+ sequence, blocktype,
+ type_to_name(blocktype), blocknr);
+ }
+
+ switch (blocktype) {
+ case JBD2_DESCRIPTOR_BLOCK:
+ dump_descriptor_block(out_file, source, buf, jsb,
+ &blocknr, blocksize, maxlen,
+ transaction);
+ continue;
+
+ case JBD2_COMMIT_BLOCK:
+ cur_counts++;
+ transaction++;
+ blocknr++;
+ WRAP(jsb, blocknr, maxlen);
+ continue;
+
+ case JBD2_REVOKE_BLOCK:
+ dump_revoke_block(out_file, buf, jsb,
+ blocknr, blocksize,
+ transaction);
+ blocknr++;
+ WRAP(jsb, blocknr, maxlen);
+ continue;
+
+ default:
+ fprintf (out_file, "Unexpected block type %u at "
+ "block %u.\n", blocktype, blocknr);
+ break;
+ }
+ }
+
+fc:
+ blocknr = maxlen - jbd2_journal_get_num_fc_blks(jsb) + 1;
+ while (blocknr <= maxlen) {
+ retval = read_journal_block(cmdname, source,
+ ((ext2_loff_t) blocknr) * blocksize,
+ buf, blocksize);
+ if (retval)
+ return;
+
+ dump_fc_block(out_file, buf, blocksize, transaction, &fc_done);
+ if (!dump_old && fc_done)
+ break;
+ blocknr++;
+ }
+}
+
+static inline size_t journal_super_tag_bytes(journal_superblock_t *jsb)
+{
+ size_t sz;
+
+ if (JSB_HAS_INCOMPAT_FEATURE(jsb, JBD2_FEATURE_INCOMPAT_CSUM_V3))
+ return sizeof(journal_block_tag3_t);
+
+ sz = sizeof(journal_block_tag_t);
+
+ if (JSB_HAS_INCOMPAT_FEATURE(jsb, JBD2_FEATURE_INCOMPAT_CSUM_V2))
+ sz += sizeof(__u16);
+
+ if (JSB_HAS_INCOMPAT_FEATURE(jsb, JBD2_FEATURE_INCOMPAT_64BIT))
+ return sz;
+
+ return sz - sizeof(__u32);
+}
+
+static void dump_fc_block(FILE *out_file, char *buf, int blocksize,
+ tid_t transaction, int *fc_done)
+{
+ struct ext4_fc_tl tl;
+ struct ext4_fc_head *head;
+ struct ext4_fc_add_range *add_range;
+ struct ext4_fc_del_range *del_range;
+ struct ext4_fc_dentry_info *dentry_info;
+ struct ext4_fc_tail *tail;
+ struct ext3_extent *ex;
+ __u8 *cur, *val;
+
+ *fc_done = 0;
+ for (cur = (__u8 *)buf; cur < (__u8 *)buf + blocksize;
+ cur = cur + sizeof(tl) + le16_to_cpu(tl.fc_len)) {
+ memcpy(&tl, cur, sizeof(tl));
+ val = cur + sizeof(tl);
+
+ switch (le16_to_cpu(tl.fc_tag)) {
+ case EXT4_FC_TAG_ADD_RANGE:
+ add_range = (struct ext4_fc_add_range *)val;
+ ex = (struct ext3_extent *)add_range->fc_ex;
+ fprintf(out_file,
+ "tag %s, inode %d, lblk %u, pblk %llu, len %lu\n",
+ tag2str(tl.fc_tag),
+ le32_to_cpu(add_range->fc_ino),
+ le32_to_cpu(ex->ee_block),
+ le32_to_cpu(ex->ee_start) +
+ (((unsigned long long) le16_to_cpu(ex->ee_start_hi)) << 32),
+ le16_to_cpu(ex->ee_len) > EXT_INIT_MAX_LEN ?
+ le16_to_cpu(ex->ee_len) - EXT_INIT_MAX_LEN :
+ le16_to_cpu(ex->ee_len));
+ break;
+ case EXT4_FC_TAG_DEL_RANGE:
+ del_range = (struct ext4_fc_del_range *)val;
+ fprintf(out_file, "tag %s, inode %d, lblk %d, len %d\n",
+ tag2str(tl.fc_tag),
+ le32_to_cpu(del_range->fc_ino),
+ le32_to_cpu(del_range->fc_lblk),
+ le32_to_cpu(del_range->fc_len));
+ break;
+ case EXT4_FC_TAG_LINK:
+ case EXT4_FC_TAG_UNLINK:
+ case EXT4_FC_TAG_CREAT:
+ dentry_info = (struct ext4_fc_dentry_info *)val;
+ fprintf(out_file,
+ "tag %s, parent %d, ino %d, name \"%s\"\n",
+ tag2str(tl.fc_tag),
+ le32_to_cpu(dentry_info->fc_parent_ino),
+ le32_to_cpu(dentry_info->fc_ino),
+ dentry_info->fc_dname);
+ break;
+ case EXT4_FC_TAG_INODE:
+ fprintf(out_file, "tag %s, inode %d\n",
+ tag2str(tl.fc_tag),
+ le32_to_cpu(((struct ext4_fc_inode *)val)->fc_ino));
+ break;
+ case EXT4_FC_TAG_PAD:
+ fprintf(out_file, "tag %s\n", tag2str(tl.fc_tag));
+ break;
+ case EXT4_FC_TAG_TAIL:
+ tail = (struct ext4_fc_tail *)val;
+ fprintf(out_file, "tag %s, tid %d\n",
+ tag2str(tl.fc_tag),
+ le32_to_cpu(tail->fc_tid));
+ if (!dump_old &&
+ le32_to_cpu(tail->fc_tid) < transaction) {
+ *fc_done = 1;
+ return;
+ }
+ break;
+ case EXT4_FC_TAG_HEAD:
+ fprintf(out_file, "\n*** Fast Commit Area ***\n");
+ head = (struct ext4_fc_head *)val;
+ fprintf(out_file, "tag %s, features 0x%x, tid %d\n",
+ tag2str(tl.fc_tag),
+ le32_to_cpu(head->fc_features),
+ le32_to_cpu(head->fc_tid));
+ if (!dump_old &&
+ le32_to_cpu(head->fc_tid) < transaction) {
+ *fc_done = 1;
+ return;
+ }
+ break;
+ default:
+ *fc_done = 1;
+ break;
+ }
+ }
+}
+
+static void dump_descriptor_block(FILE *out_file,
+ struct journal_source *source,
+ char *buf,
+ journal_superblock_t *jsb,
+ unsigned int *blockp, unsigned blocksize,
+ __u32 maxlen,
+ tid_t transaction)
+{
+ unsigned offset, tag_size, csum_size = 0;
+ char *tagp;
+ journal_block_tag_t *tag;
+ unsigned int blocknr;
+ __u32 tag_block;
+ __u32 tag_flags;
+
+ tag_size = journal_super_tag_bytes(jsb);
+ offset = sizeof(journal_header_t);
+ blocknr = *blockp;
+
+ if (JSB_HAS_INCOMPAT_FEATURE(jsb, JBD2_FEATURE_INCOMPAT_CSUM_V3) ||
+ JSB_HAS_INCOMPAT_FEATURE(jsb, JBD2_FEATURE_INCOMPAT_CSUM_V2))
+ csum_size = sizeof(struct jbd2_journal_block_tail);
+
+ if (dump_all)
+ fprintf(out_file, "Dumping descriptor block, sequence %u, at "
+ "block %u:\n", transaction, blocknr);
+
+ ++blocknr;
+ WRAP(jsb, blocknr, maxlen);
+
+ do {
+ /* Work out the location of the current tag, and skip to
+ * the next one... */
+ tagp = &buf[offset];
+ tag = (journal_block_tag_t *) tagp;
+ offset += tag_size;
+
+ /* ... and if we have gone too far, then we've reached the
+ end of this block. */
+ if (offset > blocksize - csum_size)
+ break;
+
+ tag_block = be32_to_cpu(tag->t_blocknr);
+ tag_flags = be16_to_cpu(tag->t_flags);
+
+ if (!(tag_flags & JBD2_FLAG_SAME_UUID))
+ offset += 16;
+
+ dump_metadata_block(out_file, source, jsb,
+ blocknr, tag_block, tag_flags, blocksize,
+ transaction);
+
+ ++blocknr;
+ WRAP(jsb, blocknr, maxlen);
+
+ } while (!(tag_flags & JBD2_FLAG_LAST_TAG));
+
+ *blockp = blocknr;
+}
+
+
+static void dump_revoke_block(FILE *out_file, char *buf,
+ journal_superblock_t *jsb EXT2FS_ATTR((unused)),
+ unsigned int blocknr,
+ unsigned int blocksize,
+ tid_t transaction)
+{
+ unsigned int offset, max;
+ jbd2_journal_revoke_header_t *header;
+ unsigned long long rblock;
+ int tag_size = sizeof(__u32);
+
+ if (dump_all)
+ fprintf(out_file, "Dumping revoke block, sequence %u, at "
+ "block %u:\n", transaction, blocknr);
+
+ if (be32_to_cpu(jsb->s_feature_incompat) & JBD2_FEATURE_INCOMPAT_64BIT)
+ tag_size = sizeof(__u64);
+
+ header = (jbd2_journal_revoke_header_t *) buf;
+ offset = sizeof(jbd2_journal_revoke_header_t);
+ max = be32_to_cpu(header->r_count);
+ if (max > blocksize) {
+ fprintf(out_file, "Revoke block's r_count invalid: %u\b",
+ max);
+ max = blocksize;
+ }
+
+ while (offset < max) {
+ if (tag_size == sizeof(__u32)) {
+ __u32 *entry = (__u32 *) (buf + offset);
+ rblock = be32_to_cpu(*entry);
+ } else {
+ __u64 *entry = (__u64 *) (buf + offset);
+ rblock = ext2fs_be64_to_cpu(*entry);
+ }
+ if (dump_all || rblock == block_to_dump) {
+ fprintf(out_file, " Revoke FS block %llu",
+ (unsigned long long) rblock);
+ if (dump_all)
+ fprintf(out_file, "\n");
+ else
+ fprintf(out_file," at block %u, sequence %u\n",
+ blocknr, transaction);
+ }
+ offset += tag_size;
+ }
+}
+
+
+static void show_extent(FILE *out_file, int start_extent, int end_extent,
+ __u32 first_block)
+{
+ if (start_extent >= 0 && first_block != 0)
+ fprintf(out_file, "(%d+%u): %u ",
+ start_extent, end_extent-start_extent, first_block);
+}
+
+static void show_indirect(FILE *out_file, const char *name, __u32 where)
+{
+ if (where)
+ fprintf(out_file, "(%s): %u ", name, where);
+}
+
+
+static void dump_metadata_block(FILE *out_file, struct journal_source *source,
+ journal_superblock_t *jsb EXT2FS_ATTR((unused)),
+ unsigned int log_blocknr,
+ unsigned int fs_blocknr,
+ unsigned int log_tag_flags,
+ unsigned int blocksize,
+ tid_t transaction)
+{
+ int retval;
+ char buf[EXT2_MAX_BLOCK_SIZE];
+
+ if (!(dump_all
+ || (fs_blocknr == block_to_dump)
+ || (fs_blocknr == inode_block_to_dump)
+ || (fs_blocknr == bitmap_to_dump)))
+ return;
+
+ fprintf(out_file, " FS block %u logged at ", fs_blocknr);
+ if (!dump_all)
+ fprintf(out_file, "sequence %u, ", transaction);
+ fprintf(out_file, "journal block %u (flags 0x%x)\n", log_blocknr,
+ log_tag_flags);
+
+ /* There are two major special cases to parse:
+ *
+ * If this block is a block
+ * bitmap block, we need to give it special treatment so that we
+ * can log any allocates and deallocates which affect the
+ * block_to_dump query block.
+ *
+ * If the block is an inode block for the inode being searched
+ * for, then we need to dump the contents of that inode
+ * structure symbolically.
+ */
+
+ if (!(dump_contents && dump_all)
+ && fs_blocknr != block_to_dump
+ && fs_blocknr != bitmap_to_dump
+ && fs_blocknr != inode_block_to_dump)
+ return;
+
+ retval = read_journal_block("logdump", source,
+ ((ext2_loff_t) log_blocknr) * blocksize,
+ buf, blocksize);
+ if (retval)
+ return;
+
+ if (fs_blocknr == bitmap_to_dump) {
+ struct ext2_super_block *super;
+ int offset;
+
+ super = current_fs->super;
+ offset = ((block_to_dump - super->s_first_data_block) %
+ super->s_blocks_per_group);
+
+ fprintf(out_file, " (block bitmap for block %llu: "
+ "block is %s)\n",
+ (unsigned long long) block_to_dump,
+ ext2fs_test_bit(offset, buf) ? "SET" : "CLEAR");
+ }
+
+ if (fs_blocknr == inode_block_to_dump) {
+ struct ext2_inode *inode;
+ int first, prev, this, start_extent, i;
+
+ fprintf(out_file, " (inode block for inode %u):\n",
+ inode_to_dump);
+
+ inode = (struct ext2_inode *) (buf + inode_offset_to_dump);
+ internal_dump_inode(out_file, " ", inode_to_dump, inode, 0);
+
+ /* Dump out the direct/indirect blocks here:
+ * internal_dump_inode can only dump them from the main
+ * on-disk inode, not from the journaled copy of the
+ * inode. */
+
+ fprintf (out_file, " Blocks: ");
+ first = prev = start_extent = -1;
+
+ for (i=0; i<EXT2_NDIR_BLOCKS; i++) {
+ this = inode->i_block[i];
+ if (start_extent >= 0 && this == prev+1) {
+ prev = this;
+ continue;
+ } else {
+ show_extent(out_file, start_extent, i, first);
+ start_extent = i;
+ first = prev = this;
+ }
+ }
+ show_extent(out_file, start_extent, i, first);
+ show_indirect(out_file, "IND", inode->i_block[i++]);
+ show_indirect(out_file, "DIND", inode->i_block[i++]);
+ show_indirect(out_file, "TIND", inode->i_block[i++]);
+
+ fprintf(out_file, "\n");
+ }
+
+ if (dump_contents)
+ do_hexdump(out_file, buf, blocksize);
+
+}
+
+static void do_hexdump (FILE *out_file, char *buf, int blocksize)
+{
+ int i,j;
+ int *intp;
+ char *charp;
+ unsigned char c;
+
+ intp = (int *) buf;
+ charp = (char *) buf;
+
+ for (i=0; i<blocksize; i+=16) {
+ fprintf(out_file, " %04x: ", i);
+ for (j=0; j<16; j+=4)
+ fprintf(out_file, "%08x ", *intp++);
+ for (j=0; j<16; j++) {
+ c = *charp++;
+ if (c < ' ' || c >= 127)
+ c = '.';
+ fprintf(out_file, "%c", c);
+ }
+ fprintf(out_file, "\n");
+ }
+}
+
diff --git a/debugfs/ls.c b/debugfs/ls.c
new file mode 100644
index 0000000..525f084
--- /dev/null
+++ b/debugfs/ls.c
@@ -0,0 +1,252 @@
+/*
+ * ls.c --- list directories
+ *
+ * Copyright (C) 1997 Theodore Ts'o. This file may be redistributed
+ * under the terms of the GNU Public License.
+ */
+
+#include "config.h"
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <ctype.h>
+#include <string.h>
+#include <time.h>
+#ifdef HAVE_ERRNO_H
+#include <errno.h>
+#endif
+#include <sys/types.h>
+#ifdef HAVE_GETOPT_H
+#include <getopt.h>
+#else
+extern int optind;
+extern char *optarg;
+#endif
+
+#include "debugfs.h"
+
+/*
+ * list directory
+ */
+
+#define LONG_OPT 0x0001
+#define PARSE_OPT 0x0002
+#define RAW_OPT 0x0004
+#define ENCRYPT_OPT 0x8000
+
+struct list_dir_struct {
+ FILE *f;
+ int col;
+ int options;
+ int state;
+};
+
+static const char *monstr[] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun",
+ "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
+
+static int print_filename(FILE *f, struct ext2_dir_entry *dirent, int options)
+{
+ unsigned char ch;
+ const char *cp = dirent->name;
+ int len = ext2fs_dirent_name_len(dirent);
+ int retlen = 0;
+
+ if ((options & ENCRYPT_OPT) && !(options & RAW_OPT)) {
+ if (f)
+ return fprintf(f, "<encrypted (%d)>", len);
+ else
+ return snprintf(NULL, 0, "<encrypted (%d)>", len);
+ }
+ while (len--) {
+ ch = *cp++;
+ if (ch < 32 || ch >= 127 || ch == '\\') {
+ if (f)
+ fprintf(f, "\\x%02x", ch);
+ retlen += 4;
+ } else {
+ if (f)
+ fputc(ch, f);
+ retlen++;
+ }
+ }
+ return retlen;
+}
+
+static int list_dir_proc(ext2_ino_t dir EXT2FS_ATTR((unused)),
+ int entry,
+ struct ext2_dir_entry *dirent,
+ int offset EXT2FS_ATTR((unused)),
+ int blocksize EXT2FS_ATTR((unused)),
+ char *buf EXT2FS_ATTR((unused)),
+ void *private)
+{
+ struct ext2_inode inode;
+ ext2_ino_t ino;
+ struct tm *tm_p;
+ time_t modtime;
+ char tmp[EXT2_NAME_LEN + 16];
+ char datestr[80];
+ char lbr, rbr;
+ int thislen;
+ int options;
+ struct list_dir_struct *ls = (struct list_dir_struct *) private;
+ struct ext2_dir_entry_tail *t = (struct ext2_dir_entry_tail *) dirent;
+
+ thislen = ext2fs_dirent_name_len(dirent);
+ ino = dirent->inode;
+ options = ls->options;
+ if (ls->state < 2) {
+ ls->state++;
+ options |= RAW_OPT;
+ }
+
+ if (entry == DIRENT_DELETED_FILE) {
+ lbr = '<';
+ rbr = '>';
+ ino = 0;
+ } else {
+ lbr = rbr = ' ';
+ }
+ if (options & PARSE_OPT) {
+ if (ino) {
+ if (debugfs_read_inode(ino, &inode, "ls"))
+ return 0;
+ } else
+ memset(&inode, 0, sizeof(struct ext2_inode));
+ fprintf(ls->f,"/%u/%06o/%d/%d/%.*s/", ino, inode.i_mode,
+ inode_uid(inode), inode_gid(inode), thislen, dirent->name);
+ if (LINUX_S_ISDIR(inode.i_mode))
+ fprintf(ls->f, "/");
+ else
+ fprintf(ls->f, "%llu/",
+ (unsigned long long) EXT2_I_SIZE(&inode));
+ fprintf(ls->f, "\n");
+ } else if (options & LONG_OPT) {
+ if (ino) {
+ if (debugfs_read_inode(ino, &inode, "ls"))
+ return 0;
+ modtime = inode.i_mtime;
+ tm_p = localtime(&modtime);
+ sprintf(datestr, "%2d-%s-%4d %02d:%02d",
+ tm_p->tm_mday, monstr[tm_p->tm_mon],
+ 1900 + tm_p->tm_year, tm_p->tm_hour,
+ tm_p->tm_min);
+ } else {
+ strcpy(datestr, " ");
+ memset(&inode, 0, sizeof(struct ext2_inode));
+ }
+ fprintf(ls->f, "%c%6u%c %6o ", lbr, ino, rbr, inode.i_mode);
+ if (entry == DIRENT_CHECKSUM) {
+ fprintf(ls->f, "(dirblock checksum: 0x%08x)\n",
+ t->det_checksum);
+ return 0;
+ }
+ fprintf(ls->f, "(%d) %5d %5d ",
+ ext2fs_dirent_file_type(dirent),
+ inode_uid(inode), inode_gid(inode));
+ fprintf(ls->f, "%5llu",
+ (unsigned long long) EXT2_I_SIZE(&inode));
+ fprintf(ls->f, " %s ", datestr);
+ print_filename(ls->f, dirent, options);
+ fputc('\n', ls->f);
+ } else {
+ if (entry == DIRENT_CHECKSUM) {
+ sprintf(tmp, "%c%u%c (dirblock checksum: 0x%08x) ",
+ lbr, dirent->inode, rbr, t->det_checksum);
+ thislen = strlen(tmp);
+ if (ls->col + thislen > 80) {
+ fputc('\n', ls->f);
+ ls->col = 0;
+ }
+ fprintf(ls->f, "%s", tmp);
+ ls->col += thislen;
+ return 0;
+ }
+ sprintf(tmp, "%c%u%c (%d) ", lbr, dirent->inode, rbr,
+ dirent->rec_len);
+ thislen = strlen(tmp) + 3;
+ thislen += print_filename(NULL, dirent, options);
+
+ if (ls->col + thislen > 80) {
+ fputc('\n', ls->f);
+ ls->col = 0;
+ }
+ fprintf(ls->f, "%s", tmp);
+ print_filename(ls->f, dirent, options);
+ fputs(" ", ls->f);
+ ls->col += thislen;
+ }
+ return 0;
+}
+
+void do_list_dir(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ struct ext2_inode inode;
+ ext2_ino_t ino;
+ int retval;
+ int c;
+ int flags = DIRENT_FLAG_INCLUDE_EMPTY;
+ struct list_dir_struct ls;
+
+ ls.options = 0;
+ ls.state = 0;
+ if (check_fs_open(argv[0]))
+ return;
+
+ reset_getopt();
+ while ((c = getopt (argc, argv, "cdlpr")) != EOF) {
+ switch (c) {
+ case 'c':
+ flags |= DIRENT_FLAG_INCLUDE_CSUM;
+ break;
+ case 'l':
+ ls.options |= LONG_OPT;
+ break;
+ case 'd':
+ flags |= DIRENT_FLAG_INCLUDE_REMOVED;
+ break;
+ case 'p':
+ ls.options |= PARSE_OPT;
+ break;
+ case 'r':
+ ls.options |= RAW_OPT;
+ break;
+ default:
+ goto print_usage;
+ }
+ }
+
+ if (argc > optind+1) {
+ print_usage:
+ com_err(0, 0, "Usage: ls [-c] [-d] [-l] [-p] [-r] file");
+ return;
+ }
+
+ if (argc == optind)
+ ino = cwd;
+ else
+ ino = string_to_inode(argv[optind]);
+ if (!ino)
+ return;
+
+ ls.f = open_pager();
+ ls.col = 0;
+
+ if (debugfs_read_inode(ino, &inode, argv[0]))
+ return;
+
+ if (inode.i_flags & EXT4_ENCRYPT_FL)
+ ls.options |= ENCRYPT_OPT;
+
+ retval = ext2fs_dir_iterate2(current_fs, ino, flags,
+ 0, list_dir_proc, &ls);
+ fprintf(ls.f, "\n");
+ close_pager(ls.f);
+ if (retval)
+ com_err(argv[1], retval, 0);
+
+ return;
+}
+
+
diff --git a/debugfs/lsdel.c b/debugfs/lsdel.c
new file mode 100644
index 0000000..52c7419
--- /dev/null
+++ b/debugfs/lsdel.c
@@ -0,0 +1,219 @@
+/*
+ * lsdel.c --- routines to try to help a user recover a deleted file.
+ *
+ * Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
+ * Theodore Ts'o. This file may be redistributed under the terms of
+ * the GNU Public License.
+ */
+
+#include "config.h"
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <ctype.h>
+#include <string.h>
+#include <time.h>
+#ifdef HAVE_ERRNO_H
+#include <errno.h>
+#endif
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include "debugfs.h"
+
+struct deleted_info {
+ ext2_ino_t ino;
+ unsigned short mode;
+ __u32 uid;
+ __u64 size;
+ time_t dtime;
+ e2_blkcnt_t num_blocks;
+ e2_blkcnt_t free_blocks;
+};
+
+struct lsdel_struct {
+ ext2_ino_t inode;
+ e2_blkcnt_t num_blocks;
+ e2_blkcnt_t free_blocks;
+ e2_blkcnt_t bad_blocks;
+};
+
+static int deleted_info_compare(const void *a, const void *b)
+{
+ const struct deleted_info *arg1, *arg2;
+
+ arg1 = (const struct deleted_info *) a;
+ arg2 = (const struct deleted_info *) b;
+
+ return arg1->dtime - arg2->dtime;
+}
+
+static int lsdel_proc(ext2_filsys fs,
+ blk64_t *block_nr,
+ e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
+ blk64_t ref_block EXT2FS_ATTR((unused)),
+ int ref_offset EXT2FS_ATTR((unused)),
+ void *private)
+{
+ struct lsdel_struct *lsd = (struct lsdel_struct *) private;
+
+ lsd->num_blocks++;
+
+ if (*block_nr < fs->super->s_first_data_block ||
+ *block_nr >= ext2fs_blocks_count(fs->super)) {
+ lsd->bad_blocks++;
+ return BLOCK_ABORT;
+ }
+
+ if (!ext2fs_test_block_bitmap2(fs->block_map,*block_nr))
+ lsd->free_blocks++;
+
+ return 0;
+}
+
+void do_lsdel(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ struct lsdel_struct lsd;
+ struct deleted_info *delarray;
+ int num_delarray, max_delarray;
+ ext2_inode_scan scan = 0;
+ ext2_ino_t ino;
+ struct ext2_inode inode;
+ errcode_t retval;
+ char *block_buf;
+ int i;
+ long secs = 0;
+ char *tmp;
+ time_t now;
+ FILE *out;
+
+ if (common_args_process(argc, argv, 1, 2, "list_deleted_inodes",
+ "[secs]", 0))
+ return;
+
+ if (argc > 1) {
+ secs = strtol(argv[1],&tmp,0);
+ if (*tmp) {
+ com_err(argv[0], 0, "Bad time - %s",argv[1]);
+ return;
+ }
+ }
+
+ now = current_fs->now ? current_fs->now : time(0);
+ max_delarray = 100;
+ num_delarray = 0;
+ delarray = malloc(max_delarray * sizeof(struct deleted_info));
+ if (!delarray) {
+ com_err("ls_deleted_inodes", ENOMEM,
+ "while allocating deleted information storage");
+ exit(1);
+ }
+
+ block_buf = malloc(current_fs->blocksize * 3);
+ if (!block_buf) {
+ com_err("ls_deleted_inodes", ENOMEM, "while allocating block buffer");
+ goto error_out;
+ }
+
+ retval = ext2fs_open_inode_scan(current_fs, 0, &scan);
+ if (retval) {
+ com_err("ls_deleted_inodes", retval,
+ "while opening inode scan");
+ goto error_out;
+ }
+
+ do {
+ retval = ext2fs_get_next_inode(scan, &ino, &inode);
+ } while (retval == EXT2_ET_BAD_BLOCK_IN_INODE_TABLE);
+ if (retval) {
+ com_err("ls_deleted_inodes", retval,
+ "while starting inode scan");
+ goto error_out;
+ }
+
+ while (ino) {
+ if ((inode.i_dtime == 0) ||
+ (secs && (labs(now - secs) > (long) inode.i_dtime)))
+ goto next;
+
+ lsd.inode = ino;
+ lsd.num_blocks = 0;
+ lsd.free_blocks = 0;
+ lsd.bad_blocks = 0;
+
+ if (ext2fs_inode_has_valid_blocks2(current_fs, &inode)) {
+ retval = ext2fs_block_iterate3(current_fs, ino,
+ BLOCK_FLAG_READ_ONLY,
+ block_buf,
+ lsdel_proc, &lsd);
+ if (retval) {
+ com_err("ls_deleted_inodes", retval,
+ "while calling ext2fs_block_iterate2");
+ goto next;
+ }
+ }
+ if ((lsd.free_blocks && !lsd.bad_blocks) ||
+ inode.i_flags & EXT4_INLINE_DATA_FL) {
+ if (num_delarray >= max_delarray) {
+ max_delarray += 50;
+ delarray = realloc(delarray,
+ max_delarray * sizeof(struct deleted_info));
+ if (!delarray) {
+ com_err("ls_deleted_inodes",
+ ENOMEM,
+ "while reallocating array");
+ exit(1);
+ }
+ }
+
+ delarray[num_delarray].ino = ino;
+ delarray[num_delarray].mode = inode.i_mode;
+ delarray[num_delarray].uid = inode_uid(inode);
+ delarray[num_delarray].size = EXT2_I_SIZE(&inode);
+ delarray[num_delarray].dtime = (__s32) inode.i_dtime;
+ delarray[num_delarray].num_blocks = lsd.num_blocks;
+ delarray[num_delarray].free_blocks = lsd.free_blocks;
+ num_delarray++;
+ }
+
+ next:
+ do {
+ retval = ext2fs_get_next_inode(scan, &ino, &inode);
+ } while (retval == EXT2_ET_BAD_BLOCK_IN_INODE_TABLE);
+ if (retval) {
+ com_err("ls_deleted_inodes", retval,
+ "while doing inode scan");
+ goto error_out;
+ }
+ }
+
+ out = open_pager();
+
+ fprintf(out, " Inode Owner Mode Size Blocks Time deleted\n");
+
+ qsort(delarray, num_delarray, sizeof(struct deleted_info),
+ deleted_info_compare);
+
+ for (i = 0; i < num_delarray; i++) {
+ fprintf(out, "%6u %6d %6o %6llu %6lld/%6lld %s",
+ delarray[i].ino,
+ delarray[i].uid, delarray[i].mode,
+ (unsigned long long) delarray[i].size,
+ (long long) delarray[i].free_blocks,
+ (long long) delarray[i].num_blocks,
+ time_to_string(delarray[i].dtime));
+ }
+ fprintf(out, "%d deleted inodes found.\n", num_delarray);
+ close_pager(out);
+
+error_out:
+ free(block_buf);
+ free(delarray);
+ if (scan)
+ ext2fs_close_inode_scan(scan);
+ return;
+}
+
+
+
diff --git a/debugfs/ncheck.c b/debugfs/ncheck.c
new file mode 100644
index 0000000..963b3a1
--- /dev/null
+++ b/debugfs/ncheck.c
@@ -0,0 +1,223 @@
+/*
+ * ncheck.c --- given a list of inodes, generate a list of names
+ *
+ * Copyright (C) 1994 Theodore Ts'o. This file may be redistributed
+ * under the terms of the GNU Public License.
+ */
+
+#include "config.h"
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <ctype.h>
+#include <string.h>
+#include <time.h>
+#ifdef HAVE_ERRNO_H
+#include <errno.h>
+#endif
+#include <sys/types.h>
+#ifdef HAVE_GETOPT_H
+#include <getopt.h>
+#else
+extern int optind;
+extern char *optarg;
+#endif
+
+#include "debugfs.h"
+
+struct inode_walk_struct {
+ ext2_ino_t dir;
+ ext2_ino_t *iarray;
+ int names_left;
+ int num_inodes;
+ int position;
+ char *parent;
+ unsigned int get_pathname_failed:1;
+ unsigned int check_dirent:1;
+};
+
+static int ncheck_proc(struct ext2_dir_entry *dirent,
+ int offset EXT2FS_ATTR((unused)),
+ int blocksize EXT2FS_ATTR((unused)),
+ char *buf EXT2FS_ATTR((unused)),
+ void *private)
+{
+ struct inode_walk_struct *iw = (struct inode_walk_struct *) private;
+ struct ext2_inode inode;
+ errcode_t retval;
+ int filetype = ext2fs_dirent_file_type(dirent);
+ int i;
+
+ iw->position++;
+ if (iw->position <= 2)
+ return 0;
+ for (i=0; i < iw->num_inodes; i++) {
+ if (iw->iarray[i] == dirent->inode) {
+ if (!iw->parent && !iw->get_pathname_failed) {
+ retval = ext2fs_get_pathname(current_fs,
+ iw->dir,
+ 0, &iw->parent);
+ if (retval) {
+ com_err("ncheck", retval,
+ "while calling ext2fs_get_pathname for inode #%u", iw->dir);
+ iw->get_pathname_failed = 1;
+ }
+ }
+ if (iw->parent)
+ printf("%u\t%s/%.*s", iw->iarray[i],
+ iw->parent,
+ ext2fs_dirent_name_len(dirent),
+ dirent->name);
+ else
+ printf("%u\t<%u>/%.*s", iw->iarray[i],
+ iw->dir,
+ ext2fs_dirent_name_len(dirent),
+ dirent->name);
+ if (iw->check_dirent && filetype) {
+ if (!debugfs_read_inode(dirent->inode, &inode,
+ "ncheck") &&
+ filetype != ext2_file_type(inode.i_mode)) {
+ printf(" <--- BAD FILETYPE");
+ }
+ }
+ putc('\n', stdout);
+ iw->names_left--;
+ }
+ }
+ if (!iw->names_left)
+ return DIRENT_ABORT;
+
+ return 0;
+}
+
+void do_ncheck(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ struct inode_walk_struct iw;
+ int c, i;
+ ext2_inode_scan scan = 0;
+ ext2_ino_t ino;
+ struct ext2_inode inode;
+ errcode_t retval;
+ char *tmp;
+
+ iw.check_dirent = 0;
+
+ reset_getopt();
+ while ((c = getopt (argc, argv, "c")) != EOF) {
+ switch (c) {
+ case 'c':
+ iw.check_dirent = 1;
+ break;
+ default:
+ goto print_usage;
+ }
+ }
+
+ if (argc <= 1) {
+ print_usage:
+ com_err(argv[0], 0, "Usage: ncheck [-c] <inode number> ...");
+ return;
+ }
+ if (check_fs_open(argv[0]))
+ return;
+
+ argc -= optind;
+ argv += optind;
+ iw.iarray = malloc(sizeof(ext2_ino_t) * argc);
+ if (!iw.iarray) {
+ com_err("ncheck", ENOMEM,
+ "while allocating inode number array");
+ return;
+ }
+ memset(iw.iarray, 0, sizeof(ext2_ino_t) * argc);
+
+ iw.names_left = 0;
+ for (i=0; i < argc; i++) {
+ char *str = argv[i];
+ int len = strlen(str);
+
+ if ((len > 2) && (str[0] == '<') && (str[len - 1] == '>'))
+ str++;
+ iw.iarray[i] = strtol(str, &tmp, 0);
+ if (*tmp && (str == argv[i] || *tmp != '>')) {
+ com_err("ncheck", 0, "Invalid inode number - '%s'",
+ argv[i]);
+ goto error_out;
+ }
+ if (debugfs_read_inode(iw.iarray[i], &inode, *argv))
+ goto error_out;
+ if (LINUX_S_ISDIR(inode.i_mode))
+ iw.names_left += 1;
+ else
+ iw.names_left += inode.i_links_count;
+ }
+
+ iw.num_inodes = argc;
+
+ retval = ext2fs_open_inode_scan(current_fs, 0, &scan);
+ if (retval) {
+ com_err("ncheck", retval, "while opening inode scan");
+ goto error_out;
+ }
+
+ do {
+ retval = ext2fs_get_next_inode(scan, &ino, &inode);
+ } while (retval == EXT2_ET_BAD_BLOCK_IN_INODE_TABLE);
+ if (retval) {
+ com_err("ncheck", retval, "while starting inode scan");
+ goto error_out;
+ }
+
+ printf("Inode\tPathname\n");
+ while (ino) {
+ if (!inode.i_links_count)
+ goto next;
+ /*
+ * To handle filesystems touched by 0.3c extfs; can be
+ * removed later.
+ */
+ if (inode.i_dtime)
+ goto next;
+ /* Ignore anything that isn't a directory */
+ if (!LINUX_S_ISDIR(inode.i_mode))
+ goto next;
+
+ iw.position = 0;
+ iw.parent = 0;
+ iw.dir = ino;
+ iw.get_pathname_failed = 0;
+
+ retval = ext2fs_dir_iterate(current_fs, ino, 0, 0,
+ ncheck_proc, &iw);
+ ext2fs_free_mem(&iw.parent);
+ if (retval) {
+ com_err("ncheck", retval,
+ "while calling ext2_dir_iterate");
+ goto next;
+ }
+
+ if (iw.names_left == 0)
+ break;
+
+ next:
+ do {
+ retval = ext2fs_get_next_inode(scan, &ino, &inode);
+ } while (retval == EXT2_ET_BAD_BLOCK_IN_INODE_TABLE);
+
+ if (retval) {
+ com_err("ncheck", retval,
+ "while doing inode scan");
+ goto error_out;
+ }
+ }
+
+error_out:
+ free(iw.iarray);
+ if (scan)
+ ext2fs_close_inode_scan(scan);
+ return;
+}
+
+
+
diff --git a/debugfs/quota.c b/debugfs/quota.c
new file mode 100644
index 0000000..1da1e03
--- /dev/null
+++ b/debugfs/quota.c
@@ -0,0 +1,172 @@
+/*
+ * quota.c --- debugfs quota commands
+ *
+ * Copyright (C) 2014 Theodore Ts'o. This file may be redistributed
+ * under the terms of the GNU Public License.
+ */
+
+#include "config.h"
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <ctype.h>
+#include <string.h>
+#include <time.h>
+#ifdef HAVE_ERRNO_H
+#include <errno.h>
+#endif
+#include <sys/types.h>
+#ifdef HAVE_GETOPT_H
+#include <getopt.h>
+#else
+extern int optind;
+extern char *optarg;
+#endif
+
+#include "debugfs.h"
+
+const char *quota_type[] = { "user", "group", "project", NULL };
+
+static int load_quota_ctx(char *progname)
+{
+ errcode_t retval;
+
+ if (check_fs_open(progname))
+ return 1;
+
+ if (!ext2fs_has_feature_quota(current_fs->super)) {
+ com_err(progname, 0, "quota feature not enabled");
+ return 1;
+ }
+
+ if (current_qctx)
+ return 0;
+
+ retval = quota_init_context(&current_qctx, current_fs, 0);
+ if (retval) {
+ com_err(current_fs->device_name, retval,
+ "while trying to load quota information");
+ return 1;
+ }
+ return 0;
+}
+
+static int parse_quota_type(const char *cmdname, const char *str)
+{
+ errcode_t retval;
+ char *t;
+ int flags = 0;
+ int i;
+
+ for (i = 0; i < MAXQUOTAS; i++) {
+ if (strcasecmp(str, quota_type[i]) == 0)
+ break;
+ }
+ if (i >= MAXQUOTAS) {
+ i = strtol(str, &t, 0);
+ if (*t)
+ i = -1;
+ }
+ if (i < 0 || i >= MAXQUOTAS) {
+ com_err(0, 0, "Invalid quota type: %s", str);
+ printf("Valid quota types are: ");
+ for (i = 0; i < MAXQUOTAS; i++)
+ printf("%s ", quota_type[i]);
+ printf("\n");
+ return -1;
+ }
+
+ if (current_fs->flags & EXT2_FLAG_RW)
+ flags |= EXT2_FILE_WRITE;
+
+ retval = quota_file_open(current_qctx, NULL, 0, i, -1, flags);
+ if (retval) {
+ com_err(cmdname, retval,
+ "while opening quota inode (type %d)", i);
+ return -1;
+ }
+ return i;
+}
+
+
+static int list_quota_callback(struct dquot *dq,
+ void *cb_data EXT2FS_ATTR((unused)))
+{
+ printf("%10u %8lld %8lld %8lld %8lld %8lld %8lld\n",
+ dq->dq_id, (long long)dq->dq_dqb.dqb_curspace,
+ (long long)dq->dq_dqb.dqb_bsoftlimit,
+ (long long)dq->dq_dqb.dqb_bhardlimit,
+ (long long)dq->dq_dqb.dqb_curinodes,
+ (long long)dq->dq_dqb.dqb_isoftlimit,
+ (long long)dq->dq_dqb.dqb_ihardlimit);
+ return 0;
+}
+
+void do_list_quota(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ errcode_t retval;
+ int type;
+ struct quota_handle *qh;
+
+ if (load_quota_ctx(argv[0]))
+ return;
+
+ if (argc != 2) {
+ com_err(0, 0, "Usage: list_quota <quota_type>\n");
+ return;
+ }
+
+ type = parse_quota_type(argv[0], argv[1]);
+ if (type < 0)
+ return;
+
+ printf("%7s %2s %8s %8s %8s %8s %8s %8s\n",
+ quota_type[type], "id",
+ "space", "quota", "limit", "inodes", "quota", "limit");
+ qh = current_qctx->quota_file[type];
+ retval = qh->qh_ops->scan_dquots(qh, list_quota_callback, NULL);
+ if (retval) {
+ com_err(argv[0], retval, "while scanning dquots");
+ return;
+ }
+}
+
+void do_get_quota(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ int err, type;
+ struct quota_handle *qh;
+ struct dquot *dq;
+ qid_t id;
+
+ if (load_quota_ctx(argv[0]))
+ return;
+
+ if (argc != 3) {
+ com_err(0, 0, "Usage: get_quota <quota_type> <id>\n");
+ return;
+ }
+
+ type = parse_quota_type(argv[0], argv[1]);
+ if (type < 0)
+ return;
+
+ id = parse_ulong(argv[2], argv[0], "id", &err);
+ if (err)
+ return;
+
+ printf("%7s %2s %8s %8s %8s %8s %8s %8s\n",
+ quota_type[type], "id",
+ "space", "quota", "limit", "inodes", "quota", "limit");
+
+ qh = current_qctx->quota_file[type];
+
+ dq = qh->qh_ops->read_dquot(qh, id);
+ if (dq) {
+ list_quota_callback(dq, NULL);
+ ext2fs_free_mem(&dq);
+ } else {
+ com_err(argv[0], 0, "couldn't read quota record");
+ }
+}
diff --git a/debugfs/ro_debug_cmds.ct b/debugfs/ro_debug_cmds.ct
new file mode 100644
index 0000000..736ade6
--- /dev/null
+++ b/debugfs/ro_debug_cmds.ct
@@ -0,0 +1,99 @@
+#
+# Restricted set of debugfs commands
+#
+# Copyright (C) 1993 Theodore Ts'o. This file may be redistributed
+# under the terms of the GNU Public License.
+#
+command_table debug_cmds;
+
+request do_show_debugfs_params, "Show debugfs parameters",
+ show_debugfs_params, params;
+
+request do_open_filesys, "Open a filesystem",
+ open_filesys, open;
+
+request do_close_filesys, "Close the filesystem",
+ close_filesys, close;
+
+request do_freefrag, "Report free space fragmentation",
+ freefrag, e2freefrag;
+
+request do_show_super_stats, "Show superblock statistics",
+ show_super_stats, stats;
+
+request do_ncheck, "Do inode->name translation",
+ ncheck;
+
+request do_icheck, "Do block->inode translation",
+ icheck;
+
+request do_chroot, "Change root directory",
+ change_root_directory, chroot;
+
+request do_change_working_dir, "Change working directory",
+ change_working_directory, cd;
+
+request do_list_dir, "List directory",
+ list_directory, ls;
+
+request do_stat, "Show inode information ",
+ show_inode_info, stat;
+
+request do_dump_extents, "Dump extents information ",
+ dump_extents, extents, ex;
+
+request do_blocks, "Dump blocks used by an inode ",
+ blocks;
+
+request do_filefrag, "Report fragmentation information for an inode",
+ filefrag;
+
+request do_testi, "Test an inode's in-use flag",
+ testi;
+
+request do_find_free_block, "Find free block(s)",
+ find_free_block, ffb;
+
+request do_find_free_inode, "Find free inode(s)",
+ find_free_inode, ffi;
+
+request do_print_working_directory, "Print current working directory",
+ print_working_directory, pwd;
+
+request do_lsdel, "List deleted inodes",
+ list_deleted_inodes, lsdel;
+
+request do_logdump, "Dump the contents of the journal",
+ logdump;
+
+request do_htree_dump, "Dump a hash-indexed directory",
+ htree_dump, htree;
+
+request do_dx_hash, "Calculate the directory hash of a filename",
+ dx_hash, hash;
+
+request do_dirsearch, "Search a directory for a particular filename",
+ dirsearch;
+
+request do_bmap, "Calculate the logical->physical block mapping for an inode",
+ bmap;
+
+request do_imap, "Calculate the location of an inode",
+ imap;
+
+request do_supported_features, "Print features supported by this version of e2fsprogs",
+ supported_features;
+
+request do_dump_mmp, "Dump MMP information",
+ dump_mmp;
+
+request do_extent_open, "Open inode for extent manipulation",
+ extent_open, eo;
+
+request do_list_quota, "List quota",
+ lost_quota, lq;
+
+request do_get_quota, "Get quota",
+ get_quota, gq;
+
+end;
diff --git a/debugfs/set_fields.c b/debugfs/set_fields.c
new file mode 100644
index 0000000..f916dea
--- /dev/null
+++ b/debugfs/set_fields.c
@@ -0,0 +1,1024 @@
+/*
+ * set_fields.c --- set a superblock value
+ *
+ * Copyright (C) 2000, 2001, 2002, 2003, 2004 by Theodore Ts'o.
+ *
+ * %Begin-Header%
+ * This file may be redistributed under the terms of the GNU Public
+ * License.
+ * %End-Header%
+ */
+
+#define _XOPEN_SOURCE 600 /* for inclusion of strptime() and strtoull */
+
+#ifdef HAVE_STRTOULL
+#define STRTOULL strtoull
+#else
+#define STRTOULL strtoul
+#endif
+
+#include "config.h"
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <ctype.h>
+#include <string.h>
+#include <strings.h>
+#include <time.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#ifdef HAVE_ERRNO_H
+#include <errno.h>
+#endif
+#include <assert.h>
+#if HAVE_STRINGS_H
+#include <strings.h>
+#endif
+#include <fcntl.h>
+#include <utime.h>
+
+#include "debugfs.h"
+#include "uuid/uuid.h"
+#include "e2p/e2p.h"
+#include "support/quotaio.h"
+
+static struct ext2_super_block set_sb;
+static struct ext2_inode_large set_inode;
+static struct ext2_group_desc set_gd;
+static struct ext4_group_desc set_gd4;
+static struct mmp_struct set_mmp;
+static dgrp_t set_bg;
+static ext2_ino_t set_ino;
+static int array_idx;
+
+#define FLAG_ARRAY 0x0001
+#define FLAG_ALIAS 0x0002 /* Data intersects with other field */
+#define FLAG_CSUM 0x0004
+
+struct field_set_info {
+ const char *name;
+ void *ptr;
+ void *ptr2;
+ unsigned int size;
+ errcode_t (*func)(struct field_set_info *info, char *field, char *arg);
+ int flags;
+ int max_idx;
+};
+
+static errcode_t parse_uint(struct field_set_info *info, char *field, char *arg);
+static errcode_t parse_int(struct field_set_info *info, char *field, char *arg);
+static errcode_t parse_string(struct field_set_info *info, char *field, char *arg);
+static errcode_t parse_uuid(struct field_set_info *info, char *field, char *arg);
+static errcode_t parse_hashalg(struct field_set_info *info, char *field, char *arg);
+static errcode_t parse_encoding(struct field_set_info *info, char *field, char *arg);
+static errcode_t parse_time(struct field_set_info *info, char *field, char *arg);
+static errcode_t parse_bmap(struct field_set_info *info, char *field, char *arg);
+static errcode_t parse_gd_csum(struct field_set_info *info, char *field, char *arg);
+static errcode_t parse_inode_csum(struct field_set_info *info, char *field,
+ char *arg);
+static errcode_t parse_mmp_clear(struct field_set_info *info, char *field,
+ char *arg);
+
+#if __GNUC_PREREQ (4, 6) || defined(__clang__)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wmissing-field-initializers"
+#endif
+
+static struct field_set_info super_fields[] = {
+ { "inodes_count", &set_sb.s_inodes_count, NULL, 4, parse_uint },
+ { "blocks_count", &set_sb.s_blocks_count, &set_sb.s_blocks_count_hi,
+ 4, parse_uint },
+ { "r_blocks_count", &set_sb.s_r_blocks_count,
+ &set_sb.s_r_blocks_count_hi, 4, parse_uint },
+ { "free_blocks_count", &set_sb.s_free_blocks_count,
+ &set_sb.s_free_blocks_hi, 4, parse_uint },
+ { "free_inodes_count", &set_sb.s_free_inodes_count, NULL, 4, parse_uint },
+ { "first_data_block", &set_sb.s_first_data_block, NULL, 4, parse_uint },
+ { "log_block_size", &set_sb.s_log_block_size, NULL, 4, parse_uint },
+ { "log_cluster_size", &set_sb.s_log_cluster_size, NULL, 4, parse_int },
+ { "blocks_per_group", &set_sb.s_blocks_per_group, NULL, 4, parse_uint },
+ { "clusters_per_group", &set_sb.s_clusters_per_group, NULL, 4, parse_uint },
+ { "inodes_per_group", &set_sb.s_inodes_per_group, NULL, 4, parse_uint },
+ { "mtime", &set_sb.s_mtime, NULL, 4, parse_time },
+ { "wtime", &set_sb.s_wtime, NULL, 4, parse_time },
+ { "mnt_count", &set_sb.s_mnt_count, NULL, 2, parse_uint },
+ { "max_mnt_count", &set_sb.s_max_mnt_count, NULL, 2, parse_int },
+ /* s_magic */
+ { "state", &set_sb.s_state, NULL, 2, parse_uint },
+ { "errors", &set_sb.s_errors, NULL, 2, parse_uint },
+ { "minor_rev_level", &set_sb.s_minor_rev_level, NULL, 2, parse_uint },
+ { "lastcheck", &set_sb.s_lastcheck, NULL, 4, parse_time },
+ { "checkinterval", &set_sb.s_checkinterval, NULL, 4, parse_uint },
+ { "creator_os", &set_sb.s_creator_os, NULL, 4, parse_uint },
+ { "rev_level", &set_sb.s_rev_level, NULL, 4, parse_uint },
+ { "def_resuid", &set_sb.s_def_resuid, NULL, 2, parse_uint },
+ { "def_resgid", &set_sb.s_def_resgid, NULL, 2, parse_uint },
+ { "first_ino", &set_sb.s_first_ino, NULL, 4, parse_uint },
+ { "inode_size", &set_sb.s_inode_size, NULL, 2, parse_uint },
+ { "block_group_nr", &set_sb.s_block_group_nr, NULL, 2, parse_uint },
+ { "feature_compat", &set_sb.s_feature_compat, NULL, 4, parse_uint },
+ { "feature_incompat", &set_sb.s_feature_incompat, NULL, 4, parse_uint },
+ { "feature_ro_compat", &set_sb.s_feature_ro_compat, NULL, 4, parse_uint },
+ { "uuid", &set_sb.s_uuid, NULL, 16, parse_uuid },
+ { "volume_name", &set_sb.s_volume_name, NULL, 16, parse_string },
+ { "last_mounted", &set_sb.s_last_mounted, NULL, 64, parse_string },
+ { "algorithm_usage_bitmap", &set_sb.s_algorithm_usage_bitmap, NULL,
+ 4, parse_uint },
+ { "prealloc_blocks", &set_sb.s_prealloc_blocks, NULL, 1, parse_uint },
+ { "prealloc_dir_blocks", &set_sb.s_prealloc_dir_blocks, NULL, 1,
+ parse_uint },
+ { "reserved_gdt_blocks", &set_sb.s_reserved_gdt_blocks, NULL, 2,
+ parse_uint },
+ { "journal_uuid", &set_sb.s_journal_uuid, NULL, 16, parse_uuid },
+ { "journal_inum", &set_sb.s_journal_inum, NULL, 4, parse_uint },
+ { "journal_dev", &set_sb.s_journal_dev, NULL, 4, parse_uint },
+ { "last_orphan", &set_sb.s_last_orphan, NULL, 4, parse_uint },
+ { "hash_seed", &set_sb.s_hash_seed, NULL, 16, parse_uuid },
+ { "def_hash_version", &set_sb.s_def_hash_version, NULL, 1, parse_hashalg },
+ { "jnl_backup_type", &set_sb.s_jnl_backup_type, NULL, 1, parse_uint },
+ { "desc_size", &set_sb.s_desc_size, NULL, 2, parse_uint },
+ { "default_mount_opts", &set_sb.s_default_mount_opts, NULL, 4, parse_uint },
+ { "first_meta_bg", &set_sb.s_first_meta_bg, NULL, 4, parse_uint },
+ { "mkfs_time", &set_sb.s_mkfs_time, NULL, 4, parse_time },
+ { "jnl_blocks", &set_sb.s_jnl_blocks[0], NULL, 4, parse_uint, FLAG_ARRAY,
+ 17 },
+ { "min_extra_isize", &set_sb.s_min_extra_isize, NULL, 2, parse_uint },
+ { "want_extra_isize", &set_sb.s_want_extra_isize, NULL, 2, parse_uint },
+ { "flags", &set_sb.s_flags, NULL, 4, parse_uint },
+ { "raid_stride", &set_sb.s_raid_stride, NULL, 2, parse_uint },
+ { "mmp_interval", &set_sb.s_mmp_update_interval, NULL, 2, parse_uint },
+ { "mmp_block", &set_sb.s_mmp_block, NULL, 8, parse_uint },
+ { "raid_stripe_width", &set_sb.s_raid_stripe_width, NULL, 4, parse_uint },
+ { "log_groups_per_flex", &set_sb.s_log_groups_per_flex, NULL, 1, parse_uint },
+ { "kbytes_written", &set_sb.s_kbytes_written, NULL, 8, parse_uint },
+ { "snapshot_inum", &set_sb.s_snapshot_inum, NULL, 4, parse_uint },
+ { "snapshot_id", &set_sb.s_snapshot_id, NULL, 4, parse_uint },
+ { "snapshot_r_blocks_count", &set_sb.s_snapshot_r_blocks_count,
+ NULL, 8, parse_uint },
+ { "snapshot_list", &set_sb.s_snapshot_list, NULL, 4, parse_uint },
+ { "mount_opts", &set_sb.s_mount_opts, NULL, 64, parse_string },
+ { "usr_quota_inum", &set_sb.s_usr_quota_inum, NULL, 4, parse_uint },
+ { "grp_quota_inum", &set_sb.s_grp_quota_inum, NULL, 4, parse_uint },
+ { "prj_quota_inum", &set_sb.s_prj_quota_inum, NULL, 4, parse_uint },
+ { "overhead_clusters", &set_sb.s_overhead_clusters, NULL, 4, parse_uint },
+ { "backup_bgs", &set_sb.s_backup_bgs[0], NULL, 4, parse_uint,
+ FLAG_ARRAY, 2 },
+ { "checksum", &set_sb.s_checksum, NULL, 4, parse_uint },
+ { "checksum_type", &set_sb.s_checksum_type, NULL, 1, parse_uint },
+ { "encryption_level", &set_sb.s_encryption_level, NULL, 1, parse_uint },
+ { "error_count", &set_sb.s_error_count, NULL, 4, parse_uint },
+ { "first_error_time", &set_sb.s_first_error_time, NULL, 4, parse_time },
+ { "first_error_ino", &set_sb.s_first_error_ino, NULL, 4, parse_uint },
+ { "first_error_block", &set_sb.s_first_error_block, NULL, 8, parse_uint },
+ { "first_error_func", &set_sb.s_first_error_func, NULL, 32, parse_string },
+ { "first_error_line", &set_sb.s_first_error_line, NULL, 4, parse_uint },
+ { "last_error_time", &set_sb.s_last_error_time, NULL, 4, parse_time },
+ { "last_error_ino", &set_sb.s_last_error_ino, NULL, 4, parse_uint },
+ { "last_error_block", &set_sb.s_last_error_block, NULL, 8, parse_uint },
+ { "last_error_func", &set_sb.s_last_error_func, NULL, 32, parse_string },
+ { "last_error_line", &set_sb.s_last_error_line, NULL, 4, parse_uint },
+ { "encrypt_algos", &set_sb.s_encrypt_algos, NULL, 1, parse_uint,
+ FLAG_ARRAY, 4 },
+ { "encrypt_pw_salt", &set_sb.s_encrypt_pw_salt, NULL, 16, parse_uuid },
+ { "lpf_ino", &set_sb.s_lpf_ino, NULL, 4, parse_uint },
+ { "checksum_seed", &set_sb.s_checksum_seed, NULL, 4, parse_uint },
+ { "encoding", &set_sb.s_encoding, NULL, 2, parse_encoding },
+ { "orphan_file_inum", &set_sb.s_orphan_file_inum, NULL, 4, parse_uint },
+ { 0, 0, 0, 0 }
+};
+
+static struct field_set_info inode_fields[] = {
+ { "mode", &set_inode.i_mode, NULL, 2, parse_uint },
+ { "uid", &set_inode.i_uid, &set_inode.osd2.linux2.l_i_uid_high,
+ 2, parse_uint },
+ { "size", &set_inode.i_size, &set_inode.i_size_high, 4, parse_uint },
+ { "atime", &set_inode.i_atime, &set_inode.i_atime_extra,
+ 4, parse_time },
+ { "ctime", &set_inode.i_ctime, &set_inode.i_ctime_extra,
+ 4, parse_time },
+ { "mtime", &set_inode.i_mtime, &set_inode.i_mtime_extra,
+ 4, parse_time },
+ { "dtime", &set_inode.i_dtime, NULL,
+ 4, parse_time },
+ { "gid", &set_inode.i_gid, &set_inode.osd2.linux2.l_i_gid_high,
+ 2, parse_uint },
+ { "links_count", &set_inode.i_links_count, NULL, 2, parse_uint },
+ /* Special case: i_blocks is 4 bytes, i_blocks_high is 2 bytes */
+ { "blocks", &set_inode.i_blocks, &set_inode.osd2.linux2.l_i_blocks_hi,
+ 6, parse_uint },
+ { "flags", &set_inode.i_flags, NULL, 4, parse_uint },
+ { "version", &set_inode.osd1.linux1.l_i_version,
+ &set_inode.i_version_hi, 4, parse_uint },
+ { "translator", &set_inode.osd1.hurd1.h_i_translator, NULL,
+ 4, parse_uint, FLAG_ALIAS },
+ { "block", &set_inode.i_block[0], NULL, 4, parse_uint, FLAG_ARRAY,
+ EXT2_NDIR_BLOCKS },
+ { "block[IND]", &set_inode.i_block[EXT2_IND_BLOCK], NULL, 4, parse_uint },
+ { "block[DIND]", &set_inode.i_block[EXT2_DIND_BLOCK], NULL, 4, parse_uint },
+ { "block[TIND]", &set_inode.i_block[EXT2_TIND_BLOCK], NULL, 4, parse_uint },
+ { "generation", &set_inode.i_generation, NULL, 4, parse_uint },
+ /* Special case: i_file_acl_high is 2 bytes */
+ { "file_acl", &set_inode.i_file_acl,
+ &set_inode.osd2.linux2.l_i_file_acl_high, 6, parse_uint },
+ { "faddr", &set_inode.i_faddr, NULL, 4, parse_uint },
+ { "frag", &set_inode.osd2.hurd2.h_i_frag, NULL, 1, parse_uint, FLAG_ALIAS },
+ { "fsize", &set_inode.osd2.hurd2.h_i_fsize, NULL, 1, parse_uint },
+ { "checksum", &set_inode.osd2.linux2.l_i_checksum_lo,
+ &set_inode.i_checksum_hi, 2, parse_inode_csum, FLAG_CSUM },
+ { "author", &set_inode.osd2.hurd2.h_i_author, NULL,
+ 4, parse_uint, FLAG_ALIAS },
+ { "extra_isize", &set_inode.i_extra_isize, NULL,
+ 2, parse_uint },
+ { "ctime_extra", &set_inode.i_ctime_extra, NULL,
+ 4, parse_uint, FLAG_ALIAS },
+ { "mtime_extra", &set_inode.i_mtime_extra, NULL,
+ 4, parse_uint, FLAG_ALIAS },
+ { "atime_extra", &set_inode.i_atime_extra, NULL,
+ 4, parse_uint, FLAG_ALIAS },
+ { "crtime", &set_inode.i_crtime, &set_inode.i_crtime_extra,
+ 4, parse_time },
+ { "crtime_extra", &set_inode.i_crtime_extra, NULL,
+ 4, parse_uint, FLAG_ALIAS },
+ { "projid", &set_inode.i_projid, NULL, 4, parse_uint },
+ { "bmap", NULL, NULL, 4, parse_bmap, FLAG_ARRAY },
+ { 0, 0, 0, 0 }
+};
+
+static struct field_set_info ext2_bg_fields[] = {
+ { "block_bitmap", &set_gd.bg_block_bitmap, NULL, 4, parse_uint },
+ { "inode_bitmap", &set_gd.bg_inode_bitmap, NULL, 4, parse_uint },
+ { "inode_table", &set_gd.bg_inode_table, NULL, 4, parse_uint },
+ { "free_blocks_count", &set_gd.bg_free_blocks_count, NULL, 2, parse_uint },
+ { "free_inodes_count", &set_gd.bg_free_inodes_count, NULL, 2, parse_uint },
+ { "used_dirs_count", &set_gd.bg_used_dirs_count, NULL, 2, parse_uint },
+ { "flags", &set_gd.bg_flags, NULL, 2, parse_uint },
+ { "itable_unused", &set_gd.bg_itable_unused, NULL, 2, parse_uint },
+ { "checksum", &set_gd.bg_checksum, NULL, 2, parse_gd_csum },
+ { 0, 0, 0, 0 }
+};
+
+static struct field_set_info ext4_bg_fields[] = {
+ { "block_bitmap", &set_gd4.bg_block_bitmap,
+ &set_gd4.bg_block_bitmap_hi, 4, parse_uint },
+ { "inode_bitmap", &set_gd4.bg_inode_bitmap,
+ &set_gd4.bg_inode_bitmap_hi, 4, parse_uint },
+ { "inode_table", &set_gd4.bg_inode_table,
+ &set_gd4.bg_inode_table_hi, 4, parse_uint },
+ { "free_blocks_count", &set_gd4.bg_free_blocks_count,
+ &set_gd4.bg_free_blocks_count_hi, 2, parse_uint },
+ { "free_inodes_count", &set_gd4.bg_free_inodes_count,
+ &set_gd4.bg_free_inodes_count_hi, 2, parse_uint },
+ { "used_dirs_count", &set_gd4.bg_used_dirs_count,
+ &set_gd4.bg_used_dirs_count_hi, 2, parse_uint },
+ { "flags", &set_gd4.bg_flags, NULL, 2, parse_uint },
+ { "exclude_bitmap", &set_gd4.bg_exclude_bitmap_lo,
+ &set_gd4.bg_exclude_bitmap_hi, 4, parse_uint },
+ { "block_bitmap_csum", &set_gd4.bg_block_bitmap_csum_lo,
+ &set_gd4.bg_block_bitmap_csum_hi, 2, parse_uint },
+ { "inode_bitmap_csum", &set_gd4.bg_inode_bitmap_csum_lo,
+ &set_gd4.bg_inode_bitmap_csum_hi, 2, parse_uint },
+ { "itable_unused", &set_gd4.bg_itable_unused,
+ &set_gd4.bg_itable_unused_hi, 2, parse_uint },
+ { "checksum", &set_gd4.bg_checksum, NULL, 2, parse_gd_csum },
+ { 0, 0, 0, 0 }
+};
+
+static struct field_set_info mmp_fields[] = {
+ { "clear", &set_mmp.mmp_magic, NULL, sizeof(set_mmp),
+ parse_mmp_clear, FLAG_ALIAS },
+ { "magic", &set_mmp.mmp_magic, NULL, 4, parse_uint },
+ { "seq", &set_mmp.mmp_seq, NULL, 4, parse_uint },
+ { "time", &set_mmp.mmp_time, NULL, 8, parse_uint },
+ { "nodename", &set_mmp.mmp_nodename, NULL, sizeof(set_mmp.mmp_nodename),
+ parse_string },
+ { "bdevname", &set_mmp.mmp_bdevname, NULL, sizeof(set_mmp.mmp_bdevname),
+ parse_string },
+ { "check_interval", &set_mmp.mmp_check_interval, NULL, 2, parse_uint },
+ { "checksum", &set_mmp.mmp_checksum, NULL, 4, parse_uint },
+ { 0, 0, 0, 0 }
+};
+#if __GNUC_PREREQ (4, 6)
+#pragma GCC diagnostic pop
+#endif
+
+#ifdef UNITTEST
+
+
+static void do_verify_field_set_info(struct field_set_info *fields,
+ const void *data, size_t size)
+{
+ struct field_set_info *ss, *ss2;
+ const char *begin = (char *)data;
+ const char *end = begin + size;
+
+ for (ss = fields ; ss->name ; ss++) {
+ const char *ptr;
+
+ /* Check pointers */
+ ptr = ss->ptr;
+ assert(!ptr || (ptr >= begin && ptr < end));
+ ptr = ss->ptr2;
+ assert(!ptr || (ptr >= begin && ptr < end));
+
+ /* Check function */
+ assert(ss->func);
+
+ for (ss2 = fields ; ss2 != ss ; ss2++) {
+ /* Check duplicate names */
+ assert(strcmp(ss->name, ss2->name));
+
+ if (ss->flags & FLAG_ALIAS || ss2->flags & FLAG_ALIAS)
+ continue;
+ /* Check false aliases, might be copy-n-paste error */
+ assert(!ss->ptr || (ss->ptr != ss2->ptr &&
+ ss->ptr != ss2->ptr2));
+ assert(!ss->ptr2 || (ss->ptr2 != ss2->ptr &&
+ ss->ptr2 != ss2->ptr2));
+ }
+ }
+}
+
+int main(int argc, char **argv)
+{
+ do_verify_field_set_info(super_fields, &set_sb, sizeof(set_sb));
+ do_verify_field_set_info(inode_fields, &set_inode, sizeof(set_inode));
+ do_verify_field_set_info(ext2_bg_fields, &set_gd, sizeof(set_gd));
+ do_verify_field_set_info(ext4_bg_fields, &set_gd4, sizeof(set_gd4));
+ do_verify_field_set_info(mmp_fields, &set_mmp, sizeof(set_mmp));
+ return 0;
+}
+
+ext2_filsys current_fs;
+ext2_ino_t root, cwd;
+
+#endif /* UNITTEST */
+
+static int check_suffix(const char *field)
+{
+ int len = strlen(field);
+
+ if (len <= 3)
+ return 0;
+ field += len-3;
+ if (!strcmp(field, "_lo"))
+ return 1;
+ if (!strcmp(field, "_hi"))
+ return 2;
+ return 0;
+}
+
+static struct field_set_info *find_field(struct field_set_info *fields,
+ char *field)
+{
+ struct field_set_info *ss;
+ const char *prefix;
+ char *arg, *delim, *idx, *tmp;
+ int suffix, prefix_len;
+
+ if (fields == super_fields)
+ prefix = "s_";
+ else if (fields == inode_fields)
+ prefix = "i_";
+ else
+ prefix = "bg_";
+ prefix_len = strlen(prefix);
+ if (strncmp(field, prefix, prefix_len) == 0)
+ field += prefix_len;
+
+ arg = malloc(strlen(field)+1);
+ if (!arg)
+ return NULL;
+ strcpy(arg, field);
+
+ idx = strchr(arg, '[');
+ if (idx) {
+ *idx++ = 0;
+ delim = idx + strlen(idx) - 1;
+ if (!*idx || *delim != ']')
+ idx = 0;
+ else
+ *delim = 0;
+ }
+ /*
+ * Can we parse the number?
+ */
+ if (idx) {
+ array_idx = strtol(idx, &tmp, 0);
+ if (*tmp) {
+ *(--idx) = '[';
+ *delim = ']';
+ idx = 0;
+ }
+ }
+
+ /*
+ * If there is a valid _hi or a _lo suffix, strip it off
+ */
+ suffix = check_suffix(arg);
+ if (suffix > 0)
+ arg[strlen(arg)-3] = 0;
+
+ for (ss = fields ; ss->name ; ss++) {
+ if (suffix && ss->ptr2 == 0)
+ continue;
+ if (ss->flags & FLAG_ARRAY) {
+ if (!idx || (strcmp(ss->name, arg) != 0))
+ continue;
+ if (ss->max_idx > 0 && array_idx >= ss->max_idx)
+ continue;
+ } else {
+ if (strcmp(ss->name, arg) != 0)
+ continue;
+ }
+ free(arg);
+ return ss;
+ }
+ free(arg);
+ return NULL;
+}
+
+/*
+ * Note: info->size == 6 is special; this means a base size 4 bytes,
+ * and secondary (high) size of 2 bytes. This is needed for the
+ * special case of i_blocks_high and i_file_acl_high.
+ */
+static errcode_t parse_uint(struct field_set_info *info, char *field,
+ char *arg)
+{
+ unsigned long long n, num, mask, limit;
+ int suffix = check_suffix(field);
+ char *tmp;
+ void *field1 = info->ptr, *field2 = info->ptr2;
+ int size = (info->size == 6) ? 4 : info->size;
+ union {
+ __u64 *ptr64;
+ __u32 *ptr32;
+ __u16 *ptr16;
+ __u8 *ptr8;
+ } u;
+
+ if (suffix == 1)
+ field2 = 0;
+ if (suffix == 2) {
+ field1 = field2;
+ field2 = 0;
+ }
+
+ u.ptr8 = (__u8 *) field1;
+ if (info->flags & FLAG_ARRAY)
+ u.ptr8 += array_idx * info->size;
+
+ errno = 0;
+ num = STRTOULL(arg, &tmp, 0);
+ if (*tmp || errno) {
+ fprintf(stderr, "Couldn't parse '%s' for field %s.\n",
+ arg, info->name);
+ return EINVAL;
+ }
+ mask = ~0ULL >> ((8 - size) * 8);
+ limit = ~0ULL >> ((8 - info->size) * 8);
+ if (field2 && info->size != 6)
+ limit = ~0ULL >> ((8 - info->size*2) * 8);
+
+ if (num > limit) {
+ fprintf(stderr, "Value '%s' exceeds field %s maximum %llu.\n",
+ arg, info->name, limit);
+ return EINVAL;
+ }
+ n = num & mask;
+ switch (size) {
+ case 8:
+ *u.ptr64 = n;
+ break;
+ case 4:
+ *u.ptr32 = n;
+ break;
+ case 2:
+ *u.ptr16 = n;
+ break;
+ case 1:
+ *u.ptr8 = n;
+ break;
+ }
+ if (!field2)
+ return 0;
+ n = (size == 8) ? 0 : (num >> (size*8));
+ u.ptr8 = (__u8 *) field2;
+ if (info->size == 6)
+ size = 2;
+ switch (size) {
+ case 8:
+ /* Should never get here */
+ fprintf(stderr, "64-bit field %s has a second 64-bit field\n"
+ "defined; BUG?!?\n", info->name);
+ *u.ptr64 = 0;
+ break;
+ case 4:
+ *u.ptr32 = n;
+ break;
+ case 2:
+ *u.ptr16 = n;
+ break;
+ case 1:
+ *u.ptr8 = n;
+ break;
+ }
+ return 0;
+}
+
+static errcode_t parse_int(struct field_set_info *info,
+ char *field EXT2FS_ATTR((unused)), char *arg)
+{
+ long num;
+ char *tmp;
+ __s32 *ptr32;
+ __s16 *ptr16;
+ __s8 *ptr8;
+
+ num = strtol(arg, &tmp, 0);
+ if (*tmp) {
+ fprintf(stderr, "Couldn't parse '%s' for field %s.\n",
+ arg, info->name);
+ return EINVAL;
+ }
+ switch (info->size) {
+ case 4:
+ ptr32 = (__s32 *) info->ptr;
+ *ptr32 = num;
+ break;
+ case 2:
+ ptr16 = (__s16 *) info->ptr;
+ *ptr16 = num;
+ break;
+ case 1:
+ ptr8 = (__s8 *) info->ptr;
+ *ptr8 = num;
+ break;
+ }
+ return 0;
+}
+
+static errcode_t parse_string(struct field_set_info *info,
+ char *field EXT2FS_ATTR((unused)), char *arg)
+{
+ char *cp = (char *) info->ptr;
+
+ if (strlen(arg) >= info->size) {
+ fprintf(stderr, "Error maximum size for %s is %d.\n",
+ info->name, info->size);
+ return EINVAL;
+ }
+ strcpy(cp, arg);
+ return 0;
+}
+
+static errcode_t parse_time(struct field_set_info *info,
+ char *field, char *arg)
+{
+ __s64 t;
+ __u32 t_low, t_high;
+ __u32 *ptr_low, *ptr_high;
+
+ if (check_suffix(field))
+ return parse_uint(info, field, arg);
+
+ ptr_low = (__u32 *) info->ptr;
+ ptr_high = (__u32 *) info->ptr2;
+
+ t = string_to_time(arg);
+
+ if (t == -1) {
+ fprintf(stderr, "Couldn't parse '%s' for field %s.\n",
+ arg, info->name);
+ return EINVAL;
+ }
+ t_low = (__u32) t;
+ t_high = ((t - (__s32)t) >> 32) & EXT4_EPOCH_MASK;
+ *ptr_low = t_low;
+ if (ptr_high)
+ *ptr_high = (*ptr_high & ~EXT4_EPOCH_MASK) | t_high;
+ return 0;
+}
+
+static errcode_t parse_uuid(struct field_set_info *info,
+ char *field EXT2FS_ATTR((unused)), char *arg)
+{
+ unsigned char * p = (unsigned char *) info->ptr;
+
+ if ((strcasecmp(arg, "null") == 0) ||
+ (strcasecmp(arg, "clear") == 0)) {
+ uuid_clear(p);
+ } else if (strcasecmp(arg, "time") == 0) {
+ uuid_generate_time(p);
+ } else if (strcasecmp(arg, "random") == 0) {
+ uuid_generate(p);
+ } else if (uuid_parse(arg, p)) {
+ fprintf(stderr, "Invalid UUID format: %s\n", arg);
+ return EINVAL;
+ }
+ return 0;
+}
+
+static errcode_t parse_hashalg(struct field_set_info *info,
+ char *field EXT2FS_ATTR((unused)), char *arg)
+{
+ int hashv;
+ unsigned char *p = (unsigned char *) info->ptr;
+
+ hashv = e2p_string2hash(arg);
+ if (hashv < 0) {
+ fprintf(stderr, "Invalid hash algorithm: %s\n", arg);
+ return EINVAL;
+ }
+ *p = hashv;
+ return 0;
+}
+
+static errcode_t parse_encoding(struct field_set_info *info,
+ char *field EXT2FS_ATTR((unused)), char *arg)
+{
+ int encoding;
+ unsigned char *p = (unsigned char *) info->ptr;
+
+ encoding = e2p_str2encoding(arg);
+ if (encoding < 0)
+ return parse_uint(info, field, arg);
+ *p = encoding;
+ return 0;
+}
+
+static errcode_t parse_bmap(struct field_set_info *info,
+ char *field EXT2FS_ATTR((unused)), char *arg)
+{
+ blk64_t blk;
+ errcode_t retval;
+ char *tmp;
+
+ blk = strtoull(arg, &tmp, 0);
+ if (*tmp) {
+ fprintf(stderr, "Couldn't parse '%s' for field %s.\n",
+ arg, info->name);
+ return EINVAL;
+ }
+
+ retval = ext2fs_bmap2(current_fs, set_ino,
+ (struct ext2_inode *) &set_inode,
+ NULL, BMAP_ALLOC | BMAP_SET, array_idx, NULL,
+ &blk);
+ if (retval) {
+ com_err("set_inode", retval, "while setting block map");
+ }
+ return retval;
+}
+
+static errcode_t parse_gd_csum(struct field_set_info *info, char *field,
+ char *arg)
+{
+ __u16 *checksum = info->ptr;
+
+ if (strcmp(arg, "calc") == 0) {
+ *checksum = ext2fs_group_desc_csum(current_fs, set_bg);
+ printf("Checksum set to 0x%04x\n", *checksum);
+ return 0;
+ }
+ return parse_uint(info, field, arg);
+}
+
+static errcode_t parse_inode_csum(struct field_set_info *info, char *field,
+ char *arg)
+{
+ errcode_t retval = 0;
+ __u32 crc;
+ int is_large_inode = 0;
+
+ if (strcmp(arg, "calc") == 0) {
+ size_t sz = EXT2_INODE_SIZE(current_fs->super);
+ struct ext2_inode_large *tmp_inode = NULL;
+
+ retval = ext2fs_get_mem(sz, &tmp_inode);
+ if (retval)
+ goto out;
+
+ retval = ext2fs_read_inode_full(current_fs, set_ino,
+ (struct ext2_inode *) tmp_inode,
+ sz);
+ if (retval)
+ goto out;
+
+#ifdef WORDS_BIGENDIAN
+ ext2fs_swap_inode_full(current_fs, tmp_inode,
+ tmp_inode, 1, sz);
+#endif
+
+ if (sz > EXT2_GOOD_OLD_INODE_SIZE)
+ is_large_inode = 1;
+
+ retval = ext2fs_inode_csum_set(current_fs, set_ino,
+ tmp_inode);
+ if (retval)
+ goto out;
+#ifdef WORDS_BIGENDIAN
+ crc = set_inode.i_checksum_lo =
+ ext2fs_swab16(tmp_inode->i_checksum_lo);
+
+#else
+ crc = set_inode.i_checksum_lo = tmp_inode->i_checksum_lo;
+#endif
+ if (is_large_inode &&
+ set_inode.i_extra_isize >=
+ (offsetof(struct ext2_inode_large,
+ i_checksum_hi) -
+ EXT2_GOOD_OLD_INODE_SIZE)) {
+#ifdef WORDS_BIGENDIAN
+ set_inode.i_checksum_lo =
+ ext2fs_swab16(tmp_inode->i_checksum_lo);
+#else
+ set_inode.i_checksum_hi = tmp_inode->i_checksum_hi;
+#endif
+ crc |= ((__u32)set_inode.i_checksum_hi) << 16;
+ }
+ printf("Checksum set to 0x%08x\n", crc);
+ out:
+ ext2fs_free_mem(&tmp_inode);
+ return retval;
+ }
+ return parse_uint(info, field, arg);
+}
+
+static void print_possible_fields(struct field_set_info *fields)
+{
+ struct field_set_info *ss;
+ const char *type, *cmd;
+ FILE *f;
+ char name[40], idx[40];
+
+ if (fields == super_fields) {
+ type = "Superblock";
+ cmd = "set_super_value";
+ } else if (fields == inode_fields) {
+ type = "Inode";
+ cmd = "set_inode";
+ } else if (fields == mmp_fields) {
+ type = "MMP";
+ cmd = "set_mmp_value";
+ } else {
+ type = "Block group descriptor";
+ cmd = "set_block_group";
+ }
+ f = open_pager();
+
+ fprintf(f, "%s fields supported by the %s command:\n", type, cmd);
+
+ for (ss = fields ; ss->name ; ss++) {
+ type = "unknown";
+ if (ss->func == parse_string)
+ type = "string";
+ else if (ss->func == parse_int)
+ type = "integer";
+ else if (ss->func == parse_uint)
+ type = "unsigned integer";
+ else if (ss->func == parse_uuid)
+ type = "UUID";
+ else if (ss->func == parse_hashalg)
+ type = "hash algorithm";
+ else if (ss->func == parse_time)
+ type = "date/time";
+ else if (ss->func == parse_bmap)
+ type = "set physical->logical block map";
+ else if (ss->func == parse_gd_csum)
+ type = "unsigned integer OR \"calc\"";
+ strcpy(name, ss->name);
+ if (ss->flags & FLAG_ARRAY) {
+ if (ss->max_idx > 0)
+ sprintf(idx, "[%d]", ss->max_idx);
+ else
+ strcpy(idx, "[]");
+ strcat(name, idx);
+ }
+ if (ss->ptr2)
+ strcat(name, "[_hi|_lo]");
+ fprintf(f, "\t%-25s\t%s\n", name, type);
+ }
+ close_pager(f);
+}
+
+
+void do_set_super(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ const char *usage = "<field> <value>\n"
+ "\t\"set_super_value -l\" will list the names of "
+ "superblock fields\n\twhich can be set.";
+ static struct field_set_info *ss;
+
+ if ((argc == 2) && !strcmp(argv[1], "-l")) {
+ print_possible_fields(super_fields);
+ return;
+ }
+
+ if (common_args_process(argc, argv, 3, 3, "set_super_value",
+ usage, CHECK_FS_RW))
+ return;
+
+ if ((ss = find_field(super_fields, argv[1])) == 0) {
+ com_err(argv[0], 0, "invalid field specifier: %s", argv[1]);
+ return;
+ }
+ set_sb = *current_fs->super;
+ if (ss->func(ss, argv[1], argv[2]) == 0) {
+ *current_fs->super = set_sb;
+ ext2fs_mark_super_dirty(current_fs);
+ }
+}
+
+void do_set_inode(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ const char *usage = "<inode> <field> <value>\n"
+ "\t\"set_inode_field -l\" will list the names of "
+ "the fields in an ext2 inode\n\twhich can be set.";
+ static struct field_set_info *ss;
+
+ if ((argc == 2) && !strcmp(argv[1], "-l")) {
+ print_possible_fields(inode_fields);
+ return;
+ }
+
+ if (common_args_process(argc, argv, 4, 4, "set_inode",
+ usage, CHECK_FS_RW))
+ return;
+
+ if ((ss = find_field(inode_fields, argv[2])) == 0) {
+ com_err(argv[0], 0, "invalid field specifier: %s", argv[2]);
+ return;
+ }
+
+ set_ino = string_to_inode(argv[1]);
+ if (!set_ino)
+ return;
+
+ if (debugfs_read_inode2(set_ino,
+ (struct ext2_inode *) &set_inode, argv[1],
+ sizeof(set_inode),
+ (ss->flags & FLAG_CSUM) ?
+ READ_INODE_NOCSUM : 0))
+ return;
+
+ if (ss->func(ss, argv[2], argv[3]) == 0) {
+ debugfs_write_inode2(set_ino,
+ (struct ext2_inode *) &set_inode,
+ argv[1], sizeof(set_inode),
+ (ss->flags & FLAG_CSUM) ?
+ WRITE_INODE_NOCSUM : 0);
+ }
+}
+
+void do_set_block_group_descriptor(int argc, char *argv[],
+ int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ const char *usage = "<bg number> <field> <value>\n"
+ "\t\"set_block_group -l\" will list the names of "
+ "the fields in a block group descriptor\n\twhich can be set.";
+ struct field_set_info *table;
+ struct field_set_info *ss;
+ char *end;
+ void *edit, *target;
+ int size;
+
+ /*
+ * Determine whether we are editing an ext2 or ext4 block group
+ * descriptor. Descriptors larger than ext4_group_desc cannot
+ * have their fields edited yet, because they do not have any
+ * names assigned. When that happens, this function needs to
+ * be updated for the new descriptor struct and fields.
+ */
+ if (current_fs &&
+ EXT2_DESC_SIZE(current_fs->super) >= EXT2_MIN_DESC_SIZE_64BIT) {
+ table = ext4_bg_fields;
+ edit = &set_gd4;
+ size = sizeof(set_gd4);
+ } else {
+ table = ext2_bg_fields;
+ edit = &set_gd;
+ size = sizeof(set_gd);
+ }
+
+ if ((argc == 2) && !strcmp(argv[1], "-l")) {
+ print_possible_fields(table);
+ return;
+ }
+
+ if (common_args_process(argc, argv, 4, 4, "set_block_group",
+ usage, CHECK_FS_RW))
+ return;
+
+ set_bg = strtoul(argv[1], &end, 0);
+ if (*end) {
+ com_err(argv[0], 0, "invalid block group number: %s", argv[1]);
+ return;
+ }
+
+ if (set_bg >= current_fs->group_desc_count) {
+ com_err(argv[0], 0, "block group number too big: %d", set_bg);
+ return;
+ }
+
+ if ((ss = find_field(table, argv[2])) == 0) {
+ com_err(argv[0], 0, "invalid field specifier: %s", argv[2]);
+ return;
+ }
+
+ target = ext2fs_group_desc(current_fs, current_fs->group_desc, set_bg);
+ memcpy(edit, target, size);
+ if (ss->func(ss, argv[2], argv[3]) == 0) {
+ memcpy(target, edit, size);
+ ext2fs_mark_super_dirty(current_fs);
+ }
+}
+
+static errcode_t parse_mmp_clear(struct field_set_info *info,
+ char *field EXT2FS_ATTR((unused)),
+ char *arg EXT2FS_ATTR((unused)))
+{
+ errcode_t retval;
+
+ retval = ext2fs_mmp_clear(current_fs);
+ if (retval != 0)
+ com_err("set_mmp_value", retval, "while clearing MMP block\n");
+ else
+ memcpy(info->ptr, current_fs->mmp_buf, info->size);
+
+ return 1; /* we don't need the MMP block written again */
+}
+
+#ifdef CONFIG_MMP
+void do_set_mmp_value(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ const char *usage = "<field> <value>\n"
+ "\t\"set_mmp_value -l\" will list the names of "
+ "MMP fields\n\twhich can be set.";
+ static struct field_set_info *smmp;
+ struct mmp_struct *mmp_s;
+ errcode_t retval;
+
+ if (argc == 2 && strcmp(argv[1], "-l") == 0) {
+ print_possible_fields(mmp_fields);
+ return;
+ }
+
+ if (check_fs_open(argv[0]))
+ return;
+
+ if (current_fs->super->s_mmp_block == 0) {
+ com_err(argv[0], 0, "no MMP block allocated\n");
+ return;
+ }
+
+ if (common_args_process(argc, argv, 2, 3, "set_mmp_value",
+ usage, CHECK_FS_RW))
+ return;
+
+ mmp_s = current_fs->mmp_buf;
+ if (mmp_s == NULL) {
+ retval = ext2fs_get_mem(current_fs->blocksize, &mmp_s);
+ if (retval) {
+ com_err(argv[0], retval, "allocating MMP buffer\n");
+ return;
+ }
+ retval = ext2fs_mmp_read(current_fs,
+ current_fs->super->s_mmp_block, mmp_s);
+ if (retval) {
+ com_err(argv[0], retval, "reading MMP block %llu.\n",
+ (long long)current_fs->super->s_mmp_block);
+ ext2fs_free_mem(&mmp_s);
+ return;
+ }
+ current_fs->mmp_buf = mmp_s;
+ }
+
+ smmp = find_field(mmp_fields, argv[1]);
+ if (smmp == 0) {
+ com_err(argv[0], 0, "invalid field specifier: %s", argv[1]);
+ return;
+ }
+
+ set_mmp = *mmp_s;
+ if (smmp->func(smmp, argv[1], argv[2]) == 0) {
+ ext2fs_mmp_write(current_fs, current_fs->super->s_mmp_block,
+ &set_mmp);
+ *mmp_s = set_mmp;
+ }
+}
+#else
+void do_set_mmp_value(int argc EXT2FS_ATTR((unused)),
+ char *argv[] EXT2FS_ATTR((unused)),
+ int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ fprintf(stdout, "MMP is unsupported, please recompile with "
+ "--enable-mmp\n");
+}
+#endif
+
diff --git a/debugfs/unused.c b/debugfs/unused.c
new file mode 100644
index 0000000..08191a0
--- /dev/null
+++ b/debugfs/unused.c
@@ -0,0 +1,60 @@
+/*
+ * unused.c --- quick and dirty unused space dumper
+ *
+ * Copyright (C) 1997 Theodore Ts'o. This file may be redistributed
+ * under the terms of the GNU Public License.
+ */
+
+#include "config.h"
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <ctype.h>
+#include <string.h>
+#include <time.h>
+#ifdef HAVE_ERRNO_H
+#include <errno.h>
+#endif
+#include <sys/types.h>
+#ifdef HAVE_GETOPT_H
+#include <getopt.h>
+#else
+extern int optind;
+extern char *optarg;
+#endif
+
+#include "debugfs.h"
+
+void do_dump_unused(int argc EXT2FS_ATTR((unused)), char **argv,
+ int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ blk64_t blk;
+ unsigned char buf[EXT2_MAX_BLOCK_SIZE];
+ unsigned int i;
+ errcode_t retval;
+
+ if (common_args_process(argc, argv, 1, 1,
+ "dump_unused", "", 0))
+ return;
+
+ for (blk=current_fs->super->s_first_data_block;
+ blk < ext2fs_blocks_count(current_fs->super); blk++) {
+ if (ext2fs_test_block_bitmap2(current_fs->block_map,blk))
+ continue;
+ retval = io_channel_read_blk64(current_fs->io, blk, 1, buf);
+ if (retval) {
+ com_err(argv[0], retval, "While reading block\n");
+ return;
+ }
+ for (i=0; i < current_fs->blocksize; i++)
+ if (buf[i])
+ break;
+ if (i >= current_fs->blocksize)
+ continue;
+ printf("\nUnused block %llu contains non-zero data:\n\n",
+ (unsigned long long) blk);
+ for (i=0; i < current_fs->blocksize; i++)
+ fputc(buf[i], stdout);
+ }
+}
diff --git a/debugfs/util.c b/debugfs/util.c
new file mode 100644
index 0000000..9e88054
--- /dev/null
+++ b/debugfs/util.c
@@ -0,0 +1,600 @@
+/*
+ * util.c --- utilities for the debugfs program
+ *
+ * Copyright (C) 1993, 1994 Theodore Ts'o. This file may be
+ * redistributed under the terms of the GNU Public License.
+ *
+ */
+
+#define _XOPEN_SOURCE 600 /* needed for strptime */
+
+#include "config.h"
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <ctype.h>
+#include <string.h>
+#include <time.h>
+#include <signal.h>
+#ifdef HAVE_GETOPT_H
+#include <getopt.h>
+#else
+extern int optind;
+extern char *optarg;
+#endif
+#ifdef HAVE_OPTRESET
+extern int optreset; /* defined by BSD, but not others */
+#endif
+
+#include "ss/ss.h"
+#include "debugfs.h"
+
+/*
+ * This function resets the libc getopt() function, which keeps
+ * internal state. Bad design! Stupid libc API designers! No
+ * biscuit!
+ *
+ * BSD-derived getopt() functions require that optind be reset to 1 in
+ * order to reset getopt() state. This used to be generally accepted
+ * way of resetting getopt(). However, glibc's getopt()
+ * has additional getopt() state beyond optind, and requires that
+ * optind be set zero to reset its state. So the unfortunate state of
+ * affairs is that BSD-derived versions of getopt() misbehave if
+ * optind is set to 0 in order to reset getopt(), and glibc's getopt()
+ * will core dump if optind is set 1 in order to reset getopt().
+ *
+ * More modern versions of BSD require that optreset be set to 1 in
+ * order to reset getopt(). Sigh. Standards, anyone?
+ *
+ * We hide the hair here.
+ */
+void reset_getopt(void)
+{
+#if defined(__GLIBC__) || defined(__linux__)
+ optind = 0;
+#else
+ optind = 1;
+#endif
+#ifdef HAVE_OPTRESET
+ optreset = 1; /* Makes BSD getopt happy */
+#endif
+}
+
+static const char *pager_search_list[] = { "pager", "more", "less", 0 };
+static const char *pager_dir_list[] = { "/usr/bin", "/bin", 0 };
+
+static const char *find_pager(char *buf)
+{
+ const char **i, **j;
+
+ for (i = pager_search_list; *i; i++) {
+ for (j = pager_dir_list; *j; j++) {
+ sprintf(buf, "%s/%s", *j, *i);
+ if (access(buf, X_OK) == 0)
+ return(buf);
+ }
+ }
+ return 0;
+}
+
+FILE *open_pager(void)
+{
+ FILE *outfile = 0;
+ const char *pager = ss_safe_getenv("DEBUGFS_PAGER");
+ char buf[80];
+
+ signal(SIGPIPE, SIG_IGN);
+ if (!isatty(1))
+ return stdout;
+ if (!pager)
+ pager = ss_safe_getenv("PAGER");
+ if (!pager)
+ pager = find_pager(buf);
+ if (!pager ||
+ (strcmp(pager, "__none__") == 0) ||
+ ((outfile = popen(pager, "w")) == 0))
+ return stdout;
+ return outfile;
+}
+
+void close_pager(FILE *stream)
+{
+ if (stream && stream != stdout) pclose(stream);
+}
+
+/*
+ * This routine is used whenever a command needs to turn a string into
+ * an inode.
+ */
+ext2_ino_t string_to_inode(char *str)
+{
+ ext2_ino_t ino;
+ int len = strlen(str);
+ char *end;
+ int retval;
+
+ /*
+ * If the string is of the form <ino>, then treat it as an
+ * inode number.
+ */
+ if ((len > 2) && (str[0] == '<') && (str[len-1] == '>')) {
+ ino = strtoul(str+1, &end, 0);
+ if (*end=='>' && (ino <= current_fs->super->s_inodes_count))
+ return ino;
+ }
+
+ retval = ext2fs_namei(current_fs, root, cwd, str, &ino);
+ if (retval) {
+ com_err(str, retval, 0);
+ return 0;
+ }
+ if (ino > current_fs->super->s_inodes_count) {
+ com_err(str, 0, "resolves to an illegal inode number: %u\n",
+ ino);
+ return 0;
+ }
+ return ino;
+}
+
+/*
+ * This routine returns 1 if the filesystem is not open, and prints an
+ * error message to that effect.
+ */
+int check_fs_open(char *name)
+{
+ if (!current_fs) {
+ com_err(name, 0, "Filesystem not open");
+ return 1;
+ }
+ return 0;
+}
+
+/*
+ * This routine returns 1 if a filesystem is open, and prints an
+ * error message to that effect.
+ */
+int check_fs_not_open(char *name)
+{
+ if (current_fs) {
+ com_err(name, 0,
+ "Filesystem %s is still open. Close it first.\n",
+ current_fs->device_name);
+ return 1;
+ }
+ return 0;
+}
+
+/*
+ * This routine returns 1 if a filesystem is not opened read/write,
+ * and prints an error message to that effect.
+ */
+int check_fs_read_write(char *name)
+{
+ if (!(current_fs->flags & EXT2_FLAG_RW)) {
+ com_err(name, 0, "Filesystem opened read/only");
+ return 1;
+ }
+ return 0;
+}
+
+/*
+ * This routine returns 1 if a filesystem is doesn't have its inode
+ * and block bitmaps loaded, and prints an error message to that
+ * effect.
+ */
+int check_fs_bitmaps(char *name)
+{
+ if (!current_fs->block_map || !current_fs->inode_map) {
+ com_err(name, 0, "Filesystem bitmaps not loaded");
+ return 1;
+ }
+ return 0;
+}
+
+char *inode_time_to_string(__u32 xtime, __u32 xtime_extra)
+{
+ __s64 t = (__s32) xtime;
+
+ t += (__s64) (xtime_extra & EXT4_EPOCH_MASK) << 32;
+ return time_to_string(t);
+}
+
+/*
+ * This function takes a __s64 time value and converts it to a string,
+ * using ctime
+ */
+char *time_to_string(__s64 cl)
+{
+ static int do_gmt = -1;
+ time_t t = (time_t) cl;
+ const char *tz;
+
+ if (do_gmt == -1) {
+ /* The diet libc doesn't respect the TZ environment variable */
+ tz = ss_safe_getenv("TZ");
+ if (!tz)
+ tz = "";
+ do_gmt = !strcmp(tz, "GMT") || !strcmp(tz, "GMT0");
+ }
+
+ return asctime((do_gmt) ? gmtime(&t) : localtime(&t));
+}
+
+/*
+ * Parse a string as a time. Return ((time_t)-1) if the string
+ * doesn't appear to be a sane time.
+ */
+extern __s64 string_to_time(const char *arg)
+{
+ struct tm ts;
+ __s64 ret;
+ char *tmp;
+
+ if (strcmp(arg, "now") == 0) {
+ return time(0);
+ }
+ if (arg[0] == '@') {
+ /* interpret it as an integer */
+ arg++;
+ fallback:
+ ret = strtoll(arg, &tmp, 0);
+ if (*tmp)
+ return -1;
+ return ret;
+ }
+ memset(&ts, 0, sizeof(ts));
+#ifdef HAVE_STRPTIME
+ tmp = strptime(arg, "%Y%m%d%H%M%S", &ts);
+ if (tmp == NULL)
+ tmp = strptime(arg, "%Y%m%d%H%M", &ts);
+ if (tmp == NULL)
+ tmp = strptime(arg, "%Y%m%d", &ts);
+ if (tmp == NULL)
+ goto fallback;
+#else
+ sscanf(arg, "%4d%2d%2d%2d%2d%2d", &ts.tm_year, &ts.tm_mon,
+ &ts.tm_mday, &ts.tm_hour, &ts.tm_min, &ts.tm_sec);
+ ts.tm_year -= 1900;
+ ts.tm_mon -= 1;
+ if (ts.tm_year < 0 || ts.tm_mon < 0 || ts.tm_mon > 11 ||
+ ts.tm_mday <= 0 || ts.tm_mday > 31 || ts.tm_hour > 23 ||
+ ts.tm_min > 59 || ts.tm_sec > 61)
+ goto fallback;
+#endif
+ ts.tm_isdst = -1;
+ /* strptime() may only update the specified fields, which does not
+ * necessarily include ts.tm_yday (%j). Calculate this if unset:
+ *
+ * Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
+ * 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31
+ *
+ * Start with 31 days per month. Even months have only 30 days, but
+ * reverse in August, subtract one day for those months. February has
+ * only 28 days, not 30, subtract two days. Add day of month, minus
+ * one, since day is not finished yet. Leap years handled afterward. */
+ if (ts.tm_yday == 0)
+ ts.tm_yday = (ts.tm_mon * 31) -
+ ((ts.tm_mon - (ts.tm_mon > 7)) / 2) -
+ 2 * (ts.tm_mon > 1) + ts.tm_mday - 1;
+ ret = ts.tm_sec + ts.tm_min*60 + ts.tm_hour*3600 + ts.tm_yday*86400 +
+ ((__s64) ts.tm_year-70)*31536000 +
+ (((__s64) ts.tm_year-69)/4)*86400 -
+ (((__s64) ts.tm_year-1)/100)*86400 +
+ (((__s64) ts.tm_year+299)/400)*86400;
+ return ret;
+}
+
+/*
+ * This function will convert a string to an unsigned long, printing
+ * an error message if it fails, and returning success or failure in err.
+ */
+unsigned long parse_ulong(const char *str, const char *cmd,
+ const char *descr, int *err)
+{
+ char *tmp;
+ unsigned long ret;
+
+ ret = strtoul(str, &tmp, 0);
+ if (*tmp == 0) {
+ if (err)
+ *err = 0;
+ return ret;
+ }
+ com_err(cmd, 0, "Bad %s - %s", descr, str);
+ if (err)
+ *err = 1;
+ else
+ exit(1);
+ return 0;
+}
+
+/*
+ * This function will convert a string to an unsigned long long, printing
+ * an error message if it fails, and returning success or failure in err.
+ */
+unsigned long long parse_ulonglong(const char *str, const char *cmd,
+ const char *descr, int *err)
+{
+ char *tmp;
+ unsigned long long ret;
+
+ ret = strtoull(str, &tmp, 0);
+ if (*tmp == 0) {
+ if (err)
+ *err = 0;
+ return ret;
+ }
+ com_err(cmd, 0, "Bad %s - %s", descr, str);
+ if (err)
+ *err = 1;
+ else
+ exit(1);
+ return 0;
+}
+
+/*
+ * This function will convert a string to a block number. It returns
+ * 0 on success, 1 on failure. On failure, it outputs either an optionally
+ * specified error message or a default.
+ */
+int strtoblk(const char *cmd, const char *str, const char *errmsg,
+ blk64_t *ret)
+{
+ blk64_t blk;
+ int err;
+
+ if (errmsg == NULL)
+ blk = parse_ulonglong(str, cmd, "block number", &err);
+ else
+ blk = parse_ulonglong(str, cmd, errmsg, &err);
+ *ret = blk;
+ return err;
+}
+
+/*
+ * This is a common helper function used by the command processing
+ * routines
+ */
+int common_args_process(int argc, char *argv[], int min_argc, int max_argc,
+ const char *cmd, const char *usage, int flags)
+{
+ if (argc < min_argc || argc > max_argc) {
+ com_err(argv[0], 0, "Usage: %s %s", cmd, usage);
+ return 1;
+ }
+ if (flags & CHECK_FS_NOTOPEN) {
+ if (check_fs_not_open(argv[0]))
+ return 1;
+ } else {
+ if (check_fs_open(argv[0]))
+ return 1;
+ }
+ if ((flags & CHECK_FS_RW) && check_fs_read_write(argv[0]))
+ return 1;
+ if ((flags & CHECK_FS_BITMAPS) && check_fs_bitmaps(argv[0]))
+ return 1;
+ return 0;
+}
+
+/*
+ * This is a helper function used by do_stat, do_freei, do_seti, and
+ * do_testi, etc. Basically, any command which takes a single
+ * argument which is a file/inode number specifier.
+ */
+int common_inode_args_process(int argc, char *argv[],
+ ext2_ino_t *inode, int flags)
+{
+ if (common_args_process(argc, argv, 2, 2, argv[0], "<file>", flags))
+ return 1;
+
+ *inode = string_to_inode(argv[1]);
+ if (!*inode)
+ return 1;
+ return 0;
+}
+
+/*
+ * This is a helper function used by do_freeb, do_setb, and do_testb
+ */
+int common_block_args_process(int argc, char *argv[],
+ blk64_t *block, blk64_t *count)
+{
+ int err;
+
+ if (common_args_process(argc, argv, 2, 3, argv[0],
+ "<block> [count]", CHECK_FS_BITMAPS))
+ return 1;
+
+ if (strtoblk(argv[0], argv[1], NULL, block))
+ return 1;
+ if (*block == 0) {
+ com_err(argv[0], 0, "Invalid block number 0");
+ return 1;
+ }
+
+ if (argc > 2) {
+ err = strtoblk(argv[0], argv[2], "count", count);
+ if (err)
+ return 1;
+ }
+ return 0;
+}
+
+int debugfs_read_inode2(ext2_ino_t ino, struct ext2_inode * inode,
+ const char *cmd, int bufsize, int flags)
+{
+ int retval;
+
+ retval = ext2fs_read_inode2(current_fs, ino, inode, bufsize, flags);
+ if (retval) {
+ com_err(cmd, retval, "while reading inode %u", ino);
+ return 1;
+ }
+ return 0;
+}
+
+int debugfs_read_inode(ext2_ino_t ino, struct ext2_inode * inode,
+ const char *cmd)
+{
+ int retval;
+
+ retval = ext2fs_read_inode(current_fs, ino, inode);
+ if (retval) {
+ com_err(cmd, retval, "while reading inode %u", ino);
+ return 1;
+ }
+ return 0;
+}
+
+int debugfs_write_inode2(ext2_ino_t ino,
+ struct ext2_inode *inode,
+ const char *cmd,
+ int bufsize, int flags)
+{
+ int retval;
+
+ retval = ext2fs_write_inode2(current_fs, ino, inode, bufsize, flags);
+ if (retval) {
+ com_err(cmd, retval, "while writing inode %u", ino);
+ return 1;
+ }
+ return 0;
+}
+
+int debugfs_write_inode(ext2_ino_t ino, struct ext2_inode * inode,
+ const char *cmd)
+{
+ int retval;
+
+ retval = ext2fs_write_inode(current_fs, ino, inode);
+ if (retval) {
+ com_err(cmd, retval, "while writing inode %u", ino);
+ return 1;
+ }
+ return 0;
+}
+
+int debugfs_write_new_inode(ext2_ino_t ino, struct ext2_inode * inode,
+ const char *cmd)
+{
+ int retval;
+
+ retval = ext2fs_write_new_inode(current_fs, ino, inode);
+ if (retval) {
+ com_err(cmd, retval, "while creating inode %u", ino);
+ return 1;
+ }
+ return 0;
+}
+
+/*
+ * Given a mode, return the ext2 file type
+ */
+int ext2_file_type(unsigned int mode)
+{
+ if (LINUX_S_ISREG(mode))
+ return EXT2_FT_REG_FILE;
+
+ if (LINUX_S_ISDIR(mode))
+ return EXT2_FT_DIR;
+
+ if (LINUX_S_ISCHR(mode))
+ return EXT2_FT_CHRDEV;
+
+ if (LINUX_S_ISBLK(mode))
+ return EXT2_FT_BLKDEV;
+
+ if (LINUX_S_ISLNK(mode))
+ return EXT2_FT_SYMLINK;
+
+ if (LINUX_S_ISFIFO(mode))
+ return EXT2_FT_FIFO;
+
+ if (LINUX_S_ISSOCK(mode))
+ return EXT2_FT_SOCK;
+
+ return 0;
+}
+
+errcode_t read_list(char *str, blk64_t **list, size_t *len)
+{
+ blk64_t *lst = *list;
+ size_t ln = *len;
+ char *tok, *p = str;
+ errcode_t retval = 0;
+
+ while ((tok = strtok(p, ","))) {
+ blk64_t *l;
+ blk64_t x, y;
+ char *e;
+
+ errno = 0;
+ y = x = strtoull(tok, &e, 0);
+ if (errno) {
+ retval = errno;
+ break;
+ }
+ if (*e == '-') {
+ y = strtoull(e + 1, NULL, 0);
+ if (errno) {
+ retval = errno;
+ break;
+ }
+ } else if (*e != 0) {
+ retval = EINVAL;
+ break;
+ }
+ if (y < x) {
+ retval = EINVAL;
+ break;
+ }
+ l = realloc(lst, sizeof(blk64_t) * (ln + y - x + 1));
+ if (l == NULL) {
+ retval = ENOMEM;
+ break;
+ }
+ lst = l;
+ for (; x <= y; x++)
+ lst[ln++] = x;
+ p = NULL;
+ }
+
+ *list = lst;
+ *len = ln;
+ return retval;
+}
+
+void do_byte_hexdump(FILE *fp, unsigned char *buf, size_t bufsize)
+{
+ size_t i, j, max;
+ int suppress = -1;
+
+ for (i = 0; i < bufsize; i += 16) {
+ max = (bufsize - i > 16) ? 16 : bufsize - i;
+ if (suppress < 0) {
+ if (i && memcmp(buf + i, buf + i - max, max) == 0) {
+ suppress = i;
+ fprintf(fp, "*\n");
+ continue;
+ }
+ } else {
+ if (memcmp(buf + i, buf + suppress, max) == 0)
+ continue;
+ suppress = -1;
+ }
+ fprintf(fp, "%04o ", (unsigned int)i);
+ for (j = 0; j < 16; j++) {
+ if (j < max)
+ fprintf(fp, "%02x", buf[i+j]);
+ else
+ fprintf(fp, " ");
+ if ((j % 2) == 1)
+ fprintf(fp, " ");
+ }
+ fprintf(fp, " ");
+ for (j = 0; j < max; j++)
+ fprintf(fp, "%c", isprint(buf[i+j]) ? buf[i+j] : '.');
+ fprintf(fp, "\n");
+ }
+ fprintf(fp, "\n");
+}
diff --git a/debugfs/xattrs.c b/debugfs/xattrs.c
new file mode 100644
index 0000000..cd042bc
--- /dev/null
+++ b/debugfs/xattrs.c
@@ -0,0 +1,503 @@
+/*
+ * xattrs.c --- Modify extended attributes via debugfs.
+ *
+ * Copyright (C) 2014 Oracle. This file may be redistributed
+ * under the terms of the GNU Public License.
+ */
+
+#include "config.h"
+#include <stdio.h>
+#ifdef HAVE_GETOPT_H
+#include <getopt.h>
+#else
+extern int optind;
+extern char *optarg;
+#endif
+#include <ctype.h>
+#include "support/cstring.h"
+
+#include "debugfs.h"
+
+#define PRINT_XATTR_HEX 0x01
+#define PRINT_XATTR_RAW 0x02
+#define PRINT_XATTR_C 0x04
+#define PRINT_XATTR_STATFMT 0x08
+#define PRINT_XATTR_NOQUOTES 0x10
+
+/* Dump extended attributes */
+static void print_xattr_hex(FILE *f, const char *str, int len)
+{
+ int i;
+
+ for (i = 0; i < len; i++)
+ fprintf(f, "%02x ", (unsigned char)str[i]);
+}
+
+/* Dump extended attributes */
+static void print_xattr_string(FILE *f, const char *str, int len, int flags)
+{
+ int printable = 0;
+ int i;
+
+ if (flags & PRINT_XATTR_RAW) {
+ fwrite(str, len, 1, f);
+ return;
+ }
+
+ if ((flags & PRINT_XATTR_C) == 0) {
+ /* check: is string "printable enough?" */
+ for (i = 0; i < len; i++)
+ if (isprint(str[i]))
+ printable++;
+
+ if (printable <= len*7/8)
+ flags |= PRINT_XATTR_HEX;
+ }
+
+ if (flags & PRINT_XATTR_HEX) {
+ print_xattr_hex(f, str, len);
+ } else {
+ if ((flags & PRINT_XATTR_NOQUOTES) == 0)
+ fputc('\"', f);
+ print_c_string(f, str, len);
+ if ((flags & PRINT_XATTR_NOQUOTES) == 0)
+ fputc('\"', f);
+ }
+}
+
+static void print_xattr(FILE *f, char *name, char *value, size_t value_len,
+ int print_flags)
+{
+ print_xattr_string(f, name, strlen(name), PRINT_XATTR_NOQUOTES);
+ fprintf(f, " (%zu)", value_len);
+ if ((print_flags & PRINT_XATTR_STATFMT) &&
+ (strcmp(name, "system.data") == 0))
+ value_len = 0;
+ if (value_len != 0 &&
+ (!(print_flags & PRINT_XATTR_STATFMT) || (value_len < 40))) {
+ fprintf(f, " = ");
+ print_xattr_string(f, value, value_len, print_flags);
+ }
+ fputc('\n', f);
+}
+
+static int dump_attr(char *name, char *value, size_t value_len, void *data)
+{
+ FILE *out = data;
+
+ fprintf(out, " ");
+ print_xattr(out, name, value, value_len, PRINT_XATTR_STATFMT);
+ return 0;
+}
+
+void dump_inode_attributes(FILE *out, ext2_ino_t ino)
+{
+ struct ext2_xattr_handle *h;
+ size_t sz;
+ errcode_t err;
+
+ err = ext2fs_xattrs_open(current_fs, ino, &h);
+ if (err)
+ return;
+
+ err = ext2fs_xattrs_read(h);
+ if (err)
+ goto out;
+
+ err = ext2fs_xattrs_count(h, &sz);
+ if (err || sz == 0)
+ goto out;
+
+ fprintf(out, "Extended attributes:\n");
+ err = ext2fs_xattrs_iterate(h, dump_attr, out);
+ if (err)
+ goto out;
+
+out:
+ err = ext2fs_xattrs_close(&h);
+}
+
+void do_list_xattr(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ ext2_ino_t ino;
+
+ if (argc != 2) {
+ printf("%s: Usage: %s <file>\n", argv[0],
+ argv[0]);
+ return;
+ }
+
+ if (check_fs_open(argv[0]))
+ return;
+
+ ino = string_to_inode(argv[1]);
+ if (!ino)
+ return;
+
+ dump_inode_attributes(stdout, ino);
+}
+
+void do_get_xattr(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ ext2_ino_t ino;
+ struct ext2_xattr_handle *h;
+ FILE *fp = NULL;
+ char *buf = NULL;
+ size_t buflen;
+ int i;
+ int print_flags = 0;
+ unsigned int handle_flags = 0;
+ errcode_t err;
+
+ reset_getopt();
+ while ((i = getopt(argc, argv, "Cf:rxV")) != -1) {
+ switch (i) {
+ case 'f':
+ if (fp)
+ fclose(fp);
+ fp = fopen(optarg, "w");
+ if (fp == NULL) {
+ perror(optarg);
+ return;
+ }
+ break;
+ case 'r':
+ handle_flags |= XATTR_HANDLE_FLAG_RAW;
+ break;
+ case 'x':
+ print_flags |= PRINT_XATTR_HEX;
+ break;
+ case 'V':
+ print_flags |= PRINT_XATTR_RAW|
+ PRINT_XATTR_NOQUOTES;
+ break;
+ case 'C':
+ print_flags |= PRINT_XATTR_C;
+ break;
+ default:
+ goto usage;
+ }
+ }
+
+ if (optind != argc - 2) {
+ usage:
+ printf("%s: Usage: %s [-f outfile]|[-xVC] [-r] <file> <attr>\n",
+ argv[0], argv[0]);
+
+ goto out2;
+ }
+
+ if (check_fs_open(argv[0]))
+ goto out2;
+
+ ino = string_to_inode(argv[optind]);
+ if (!ino)
+ goto out2;
+
+ err = ext2fs_xattrs_open(current_fs, ino, &h);
+ if (err)
+ goto out2;
+
+ err = ext2fs_xattrs_flags(h, &handle_flags, NULL);
+ if (err)
+ goto out;
+
+ err = ext2fs_xattrs_read(h);
+ if (err)
+ goto out;
+
+ err = ext2fs_xattr_get(h, argv[optind + 1], (void **)&buf, &buflen);
+ if (err)
+ goto out;
+
+ if (fp) {
+ fwrite(buf, buflen, 1, fp);
+ } else {
+ if (print_flags & PRINT_XATTR_RAW) {
+ if (print_flags & (PRINT_XATTR_HEX|PRINT_XATTR_C))
+ print_flags &= ~PRINT_XATTR_RAW;
+ print_xattr_string(stdout, buf, buflen, print_flags);
+ } else {
+ print_xattr(stdout, argv[optind + 1],
+ buf, buflen, print_flags);
+ }
+ printf("\n");
+ }
+
+ ext2fs_free_mem(&buf);
+out:
+ ext2fs_xattrs_close(&h);
+ if (err)
+ com_err(argv[0], err, "while getting extended attribute");
+out2:
+ if (fp)
+ fclose(fp);
+}
+
+void do_set_xattr(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ ext2_ino_t ino;
+ struct ext2_xattr_handle *h;
+ FILE *fp = NULL;
+ char *buf = NULL;
+ size_t buflen;
+ unsigned int handle_flags = 0;
+ int i;
+ errcode_t err;
+
+ reset_getopt();
+ while ((i = getopt(argc, argv, "f:r")) != -1) {
+ switch (i) {
+ case 'f':
+ if (fp)
+ fclose(fp);
+ fp = fopen(optarg, "r");
+ if (fp == NULL) {
+ perror(optarg);
+ return;
+ }
+ break;
+ case 'r':
+ handle_flags |= XATTR_HANDLE_FLAG_RAW;
+ break;
+ default:
+ goto print_usage;
+ }
+ }
+
+ if (!(fp && optind == argc - 2) && !(!fp && optind == argc - 3)) {
+ print_usage:
+ printf("Usage:\t%s [-r] <file> <attr> <value>\n", argv[0]);
+ printf("\t%s -f <value_file> [-r] <file> <attr>\n", argv[0]);
+ goto out2;
+ }
+
+ if (check_fs_open(argv[0]))
+ goto out2;
+ if (check_fs_read_write(argv[0]))
+ goto out2;
+ if (check_fs_bitmaps(argv[0]))
+ goto out2;
+
+ ino = string_to_inode(argv[optind]);
+ if (!ino)
+ goto out2;
+
+ err = ext2fs_xattrs_open(current_fs, ino, &h);
+ if (err)
+ goto out2;
+
+ err = ext2fs_xattrs_flags(h, &handle_flags, NULL);
+ if (err)
+ goto out;
+
+ err = ext2fs_xattrs_read(h);
+ if (err)
+ goto out;
+
+ if (fp) {
+ err = ext2fs_get_mem(current_fs->blocksize, &buf);
+ if (err)
+ goto out;
+ buflen = fread(buf, 1, current_fs->blocksize, fp);
+ } else {
+ buf = argv[optind + 2];
+ buflen = parse_c_string(buf);
+ }
+
+ err = ext2fs_xattr_set(h, argv[optind + 1], buf, buflen);
+out:
+ ext2fs_xattrs_close(&h);
+ if (err)
+ com_err(argv[0], err, "while setting extended attribute");
+out2:
+ if (fp) {
+ fclose(fp);
+ ext2fs_free_mem(&buf);
+ }
+}
+
+void do_rm_xattr(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ ext2_ino_t ino;
+ struct ext2_xattr_handle *h;
+ int i;
+ errcode_t err;
+
+ if (argc < 3) {
+ printf("%s: Usage: %s <file> <attrs>...\n", argv[0], argv[0]);
+ return;
+ }
+
+ if (check_fs_open(argv[0]))
+ return;
+ if (check_fs_read_write(argv[0]))
+ return;
+ if (check_fs_bitmaps(argv[0]))
+ return;
+
+ ino = string_to_inode(argv[1]);
+ if (!ino)
+ return;
+
+ err = ext2fs_xattrs_open(current_fs, ino, &h);
+ if (err)
+ return;
+
+ err = ext2fs_xattrs_read(h);
+ if (err)
+ goto out;
+
+ for (i = 2; i < argc; i++) {
+ err = ext2fs_xattr_remove(h, argv[i]);
+ if (err)
+ goto out;
+ }
+out:
+ ext2fs_xattrs_close(&h);
+ if (err)
+ com_err(argv[0], err, "while removing extended attribute");
+}
+
+/*
+ * Return non-zero if the string has a minimal number of non-printable
+ * characters.
+ */
+static int is_mostly_printable(const char *cp, int len)
+{
+ int np = 0;
+
+ if (len < 0)
+ len = strlen(cp);
+
+ while (len--) {
+ if (!isprint(*cp++)) {
+ np++;
+ if (np > 3)
+ return 0;
+ }
+ }
+ return 1;
+}
+
+static void safe_print(FILE *f, const char *cp, int len)
+{
+ unsigned char ch;
+
+ if (len < 0)
+ len = strlen(cp);
+
+ while (len--) {
+ ch = *cp++;
+ if (ch > 128) {
+ fputs("M-", f);
+ ch -= 128;
+ }
+ if ((ch < 32) || (ch == 0x7f)) {
+ fputc('^', f);
+ ch ^= 0x40; /* ^@, ^A, ^B; ^? for DEL */
+ }
+ fputc(ch, f);
+ }
+}
+
+static void dump_xattr_raw_entries(FILE *f, unsigned char *buf,
+ unsigned int start, unsigned int len,
+ unsigned value_start)
+{
+ struct ext2_ext_attr_entry ent;
+ unsigned int off = start;
+ unsigned int vstart;
+
+ while (off < len) {
+ if ((*(__u16 *) (buf + off)) == 0) {
+ fprintf(f, "last entry found at offset %u (%04o)\n",
+ off, off);
+ break;
+ }
+ if ((off + sizeof(struct ext2_ext_attr_entry)) >= len) {
+ fprintf(f, "xattr buffer overrun at %u (len = %u)\n",
+ off, len);
+ break;
+ }
+#if WORDS_BIGENDIAN
+ ext2fs_swap_ext_attr_entry(&ent,
+ (struct ext2_ext_attr_entry *) (buf + off));
+#else
+ ent = *((struct ext2_ext_attr_entry *) (buf + off));
+#endif
+ fprintf(f, "offset = %d (%04o), hash = %u, name_len = %u, "
+ "name_index = %u\n",
+ off, off, ent.e_hash, ent.e_name_len, ent.e_name_index);
+ vstart = value_start + ent.e_value_offs;
+ fprintf(f, "value_offset = %d (%04o), value_inum = %u, "
+ "value_size = %u\n", ent.e_value_offs,
+ vstart, ent.e_value_inum, ent.e_value_size);
+ off += sizeof(struct ext2_ext_attr_entry);
+ fprintf(f, "name = ");
+ if ((off + ent.e_name_len) >= len)
+ fprintf(f, "<runs off end>");
+ else
+ safe_print(f, (char *)(buf + off), ent.e_name_len);
+ fputc('\n', f);
+ if (ent.e_value_size == 0)
+ goto skip_value;
+ fprintf(f, "value = ");
+ if (ent.e_value_inum)
+ fprintf(f, "<ino %u>", ent.e_value_inum);
+ else if (ent.e_value_offs >= len ||
+ (vstart + ent.e_value_size) > len)
+ fprintf(f, "<runs off end>");
+ else if (is_mostly_printable((char *)(buf + vstart),
+ ent.e_value_size))
+ safe_print(f, (char *)(buf + vstart),
+ ent.e_value_size);
+ else {
+ fprintf(f, "<hexdump>\n");
+ do_byte_hexdump(f, (unsigned char *)(buf + vstart),
+ ent.e_value_size);
+ }
+ fputc('\n', f);
+ skip_value:
+ fputc('\n', f);
+ off += (ent.e_name_len + 3) & ~3;
+ }
+}
+
+void raw_inode_xattr_dump(FILE *f, unsigned char *buf, unsigned int len)
+{
+ __u32 magic = ext2fs_le32_to_cpu(*((__le32 *) buf));
+
+ fprintf(f, "magic = %08x, length = %u, value_start =4 \n\n",
+ magic, len);
+ if (magic == EXT2_EXT_ATTR_MAGIC)
+ dump_xattr_raw_entries(f, buf, 4, len, 4);
+}
+
+void block_xattr_dump(FILE *f, unsigned char *buf, unsigned int len)
+{
+ struct ext2_ext_attr_header header;
+
+#ifdef WORDS_BIGENDIAN
+ ext2fs_swap_ext_attr_header(&header,
+ (struct ext2_ext_attr_header *) buf);
+#else
+ header = *((struct ext2_ext_attr_header *) buf);
+#endif
+ fprintf(f, "magic = %08x, length = %u\n", header.h_magic, len);
+ if (header.h_magic != EXT2_EXT_ATTR_MAGIC)
+ return;
+ fprintf(f, "refcount = %u, blocks = %u\n", header.h_refcount,
+ header.h_blocks);
+ fprintf(f, "hash = %08x, checksum = %08x\n", header.h_hash,
+ header.h_checksum);
+ fprintf(f, "reserved: %08x %08x %08x\n\n", header.h_reserved[0],
+ header.h_reserved[1], header.h_reserved[2]);
+
+ dump_xattr_raw_entries(f, buf,
+ sizeof(struct ext2_ext_attr_header), len, 0);
+}
diff --git a/debugfs/zap.c b/debugfs/zap.c
new file mode 100644
index 0000000..f862482
--- /dev/null
+++ b/debugfs/zap.c
@@ -0,0 +1,246 @@
+/*
+ * zap.c --- zap block
+ *
+ * Copyright (C) 2012 Theodore Ts'o. This file may be redistributed
+ * under the terms of the GNU Public License.
+ */
+
+#include "config.h"
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <ctype.h>
+#include <string.h>
+#include <time.h>
+#ifdef HAVE_ERRNO_H
+#include <errno.h>
+#endif
+#include <sys/types.h>
+#ifdef HAVE_GETOPT_H
+#include <getopt.h>
+#else
+extern int optind;
+extern char *optarg;
+#endif
+
+#include "debugfs.h"
+
+void do_zap_block(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ unsigned long pattern = 0;
+ unsigned char *buf;
+ ext2_ino_t inode;
+ errcode_t errcode;
+ blk64_t block;
+ char *file = NULL;
+ int c, err;
+ int offset = -1;
+ int length = -1;
+ int bit = -1;
+
+ if (check_fs_open(argv[0]))
+ return;
+ if (check_fs_read_write(argv[0]))
+ return;
+
+ reset_getopt();
+ while ((c = getopt (argc, argv, "b:f:l:o:p:")) != EOF) {
+ switch (c) {
+ case 'f':
+ file = optarg;
+ break;
+ case 'b':
+ bit = parse_ulong(optarg, argv[0],
+ "bit", &err);
+ if (err)
+ return;
+ if (bit >= (int) current_fs->blocksize * 8) {
+ com_err(argv[0], 0, "The bit to flip "
+ "must be within a %d block\n",
+ current_fs->blocksize);
+ return;
+ }
+ break;
+ case 'p':
+ pattern = parse_ulong(optarg, argv[0],
+ "pattern", &err);
+ if (err)
+ return;
+ if (pattern >= 256) {
+ com_err(argv[0], 0, "The fill pattern must "
+ "be an 8-bit value\n");
+ return;
+ }
+ break;
+ case 'o':
+ offset = parse_ulong(optarg, argv[0],
+ "offset", &err);
+ if (err)
+ return;
+ if (offset >= (int) current_fs->blocksize) {
+ com_err(argv[0], 0, "The offset must be "
+ "within a %d block\n",
+ current_fs->blocksize);
+ return;
+ }
+ break;
+
+ break;
+ case 'l':
+ length = parse_ulong(optarg, argv[0],
+ "length", &err);
+ if (err)
+ return;
+ break;
+ default:
+ goto print_usage;
+ }
+ }
+
+ if (bit > 0 && offset > 0) {
+ com_err(argv[0], 0, "The -o and -b options can not be mixed.");
+ return;
+ }
+
+ if (offset < 0)
+ offset = 0;
+ if (length < 0)
+ length = current_fs->blocksize - offset;
+ if ((offset + length) > (int) current_fs->blocksize) {
+ com_err(argv[0], 0, "The specified length is too bug\n");
+ return;
+ }
+
+ if (argc != optind+1) {
+ print_usage:
+ com_err(0, 0, "Usage:\tzap_block [-f file] [-o offset] "
+ "[-l length] [-p pattern] block_num");
+ com_err(0, 0, "\tzap_block [-f file] [-b bit] "
+ "block_num");
+ return;
+ }
+
+ block = parse_ulonglong(argv[optind], argv[0], "block", &err);
+ if (err)
+ return;
+
+ if (file) {
+ inode = string_to_inode(file);
+ if (!inode)
+ return;
+ errcode = ext2fs_bmap2(current_fs, inode, 0, 0, 0,
+ block, 0, &block);
+ if (errcode) {
+ com_err(argv[0], errcode,
+ "while mapping logical block %llu\n",
+ (unsigned long long) block);
+ return;
+ }
+ }
+
+ buf = malloc(current_fs->blocksize);
+ if (!buf) {
+ com_err(argv[0], 0, "Couldn't allocate block buffer");
+ return;
+ }
+
+ errcode = io_channel_read_blk64(current_fs->io, block, 1, buf);
+ if (errcode) {
+ com_err(argv[0], errcode,
+ "while reading block %llu\n",
+ (unsigned long long) block);
+ goto errout;
+ }
+
+ if (bit >= 0)
+ buf[bit >> 3] ^= 1 << (bit & 7);
+ else
+ memset(buf+offset, pattern, length);
+
+ errcode = io_channel_write_blk64(current_fs->io, block, 1, buf);
+ if (errcode) {
+ com_err(argv[0], errcode,
+ "while write block %llu\n",
+ (unsigned long long) block);
+ goto errout;
+ }
+
+errout:
+ free(buf);
+ return;
+}
+
+void do_block_dump(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
+{
+ unsigned char *buf;
+ ext2_ino_t inode;
+ errcode_t errcode;
+ blk64_t block;
+ char *file = NULL;
+ int xattr_dump = 0;
+ int c, err;
+
+ if (check_fs_open(argv[0]))
+ return;
+
+ reset_getopt();
+ while ((c = getopt (argc, argv, "f:x")) != EOF) {
+ switch (c) {
+ case 'f':
+ file = optarg;
+ break;
+ case 'x':
+ xattr_dump = 1;
+ break;
+ default:
+ goto print_usage;
+ }
+ }
+
+ if (argc != optind + 1) {
+ print_usage:
+ com_err(0, 0, "Usage: block_dump [-x] [-f inode] block_num");
+ return;
+ }
+
+ block = parse_ulonglong(argv[optind], argv[0], "block", &err);
+ if (err)
+ return;
+
+ if (file) {
+ inode = string_to_inode(file);
+ if (!inode)
+ return;
+ errcode = ext2fs_bmap2(current_fs, inode, 0, 0, 0,
+ block, 0, &block);
+ if (errcode) {
+ com_err(argv[0], errcode,
+ "while mapping logical block %llu\n",
+ (unsigned long long) block);
+ return;
+ }
+ }
+
+ buf = malloc(current_fs->blocksize);
+ if (!buf) {
+ com_err(argv[0], 0, "Couldn't allocate block buffer");
+ return;
+ }
+
+ errcode = io_channel_read_blk64(current_fs->io, block, 1, buf);
+ if (errcode) {
+ com_err(argv[0], errcode,
+ "while reading block %llu\n",
+ (unsigned long long) block);
+ goto errout;
+ }
+
+ if (xattr_dump)
+ block_xattr_dump(stdout, buf, current_fs->blocksize);
+ else
+ do_byte_hexdump(stdout, buf, current_fs->blocksize);
+errout:
+ free(buf);
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-03 13:00:44 +0000