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Message-Id: <20230620121641.469078-2-josch@mister-muffin.de>
Date: Tue, 20 Jun 2023 14:16:41 +0200
From: Johannes Schauer Marin Rodrigues <josch@...ter-muffin.de>
To: linux-ext4@...r.kernel.org
Cc: Johannes Schauer Marin Rodrigues <josch@...ter-muffin.de>
Subject: [PATCH 1/1] mke2fs: the -d option can now handle tarball input
If archive.h is available during compilation, enable mke2fs to read a
tarball as input. Since libarchive.so.13 is opened with dlopen,
libarchive is not a hard library dependency of the resulting binary.
This enables the creation of filesystems containing files which would
otherwise need superuser privileges to create (like device nodes, which
are also not allowed in unshared user namespaces). By reading from
standard input when the filename is a dash (-), mke2fs can be used as
part of a shell pipeline without temporary files.
A round-trip from tarball to ext4 to tarball yields bit-by-bit identical
results.
---
MCONFIG.in | 1 +
configure | 52 +++
configure.ac | 9 +
debugfs/Makefile.in | 2 +-
lib/config.h.in | 3 +
lib/ext2fs/Makefile.in | 2 +-
misc/Makefile.in | 2 +-
misc/create_inode.c | 621 ++++++++++++++++++++++++++++++++-
misc/mke2fs.8.in | 10 +-
misc/mke2fs.c | 12 +-
tests/m_rootgnutar/expect | 188 ++++++++++
tests/m_rootgnutar/output.sed | 5 +
tests/m_rootgnutar/script | 88 +++++
tests/m_rootpaxtar/expect | 87 +++++
tests/m_rootpaxtar/mkpaxtar.pl | 69 ++++
tests/m_rootpaxtar/output.sed | 5 +
tests/m_rootpaxtar/script | 44 +++
tests/m_roottar/expect | 208 +++++++++++
tests/m_roottar/mktar.pl | 62 ++++
tests/m_roottar/output.sed | 5 +
tests/m_roottar/script | 57 +++
21 files changed, 1513 insertions(+), 19 deletions(-)
create mode 100644 tests/m_rootgnutar/expect
create mode 100644 tests/m_rootgnutar/output.sed
create mode 100644 tests/m_rootgnutar/script
create mode 100644 tests/m_rootpaxtar/expect
create mode 100644 tests/m_rootpaxtar/mkpaxtar.pl
create mode 100644 tests/m_rootpaxtar/output.sed
create mode 100644 tests/m_rootpaxtar/script
create mode 100644 tests/m_roottar/expect
create mode 100644 tests/m_roottar/mktar.pl
create mode 100644 tests/m_roottar/output.sed
create mode 100644 tests/m_roottar/script
diff --git a/MCONFIG.in b/MCONFIG.in
index 82c75a28..cb3ec759 100644
--- a/MCONFIG.in
+++ b/MCONFIG.in
@@ -141,6 +141,7 @@ LIBFUSE = @FUSE_LIB@
LIBSUPPORT = $(LIBINTL) $(LIB)/libsupport@...TIC_LIB_EXT@
LIBBLKID = @LIBBLKID@ @PRIVATE_LIBS_CMT@ $(LIBUUID)
LIBINTL = @LIBINTL@
+LIBARCHIVE = @ARCHIVE_LIB@
SYSLIBS = @LIBS@ @PTHREAD_LIBS@
DEPLIBSS = $(LIB)/libss@..._EXT@
DEPLIBCOM_ERR = $(LIB)/libcom_err@..._EXT@
diff --git a/configure b/configure
index 72c39b4d..d0e3410b 100755
--- a/configure
+++ b/configure
@@ -704,6 +704,7 @@ SEM_INIT_LIB
FUSE_CMT
FUSE_LIB
CLOCK_GETTIME_LIB
+ARCHIVE_LIB
MAGIC_LIB
SOCKET_LIB
SIZEOF_TIME_T
@@ -13539,6 +13540,57 @@ if test "$ac_cv_func_dlopen" = yes ; then
MAGIC_LIB=$DLOPEN_LIB
fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for archive_read_new in -larchive" >&5
+printf %s "checking for archive_read_new in -larchive... " >&6; }
+if test ${ac_cv_lib_archive_archive_read_new+y}
+then :
+ printf %s "(cached) " >&6
+else $as_nop
+ ac_check_lib_save_LIBS=$LIBS
+LIBS="-larchive $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+/* Override any GCC internal prototype to avoid an error.
+ Use char because int might match the return type of a GCC
+ builtin and then its argument prototype would still apply. */
+char archive_read_new ();
+int
+main (void)
+{
+return archive_read_new ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+ ac_cv_lib_archive_archive_read_new=yes
+else $as_nop
+ ac_cv_lib_archive_archive_read_new=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+ conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_archive_archive_read_new" >&5
+printf "%s\n" "$ac_cv_lib_archive_archive_read_new" >&6; }
+if test "x$ac_cv_lib_archive_archive_read_new" = xyes
+then :
+ ARCHIVE_LIB=-larchive
+ac_fn_c_check_header_compile "$LINENO" "archive.h" "ac_cv_header_archive_h" "$ac_includes_default"
+if test "x$ac_cv_header_archive_h" = xyes
+then :
+ printf "%s\n" "#define HAVE_ARCHIVE_H 1" >>confdefs.h
+
+fi
+
+fi
+
+if test "$ac_cv_func_dlopen" = yes ; then
+ ARCHIVE_LIB=$DLOPEN_LIB
+fi
+
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for clock_gettime in -lrt" >&5
printf %s "checking for clock_gettime in -lrt... " >&6; }
if test ${ac_cv_lib_rt_clock_gettime+y}
diff --git a/configure.ac b/configure.ac
index b905e999..69fbbd27 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1296,6 +1296,15 @@ if test "$ac_cv_func_dlopen" = yes ; then
fi
AC_SUBST(MAGIC_LIB)
dnl
+dnl libarchive
+dnl
+AC_CHECK_LIB(archive, archive_read_new, [ARCHIVE_LIB=-larchive
+AC_CHECK_HEADERS([archive.h])])
+if test "$ac_cv_func_dlopen" = yes ; then
+ ARCHIVE_LIB=$DLOPEN_LIB
+fi
+AC_SUBST(ARCHIVE_LIB)
+dnl
dnl Check to see if librt is required for clock_gettime() (glibc < 2.17)
dnl
AC_CHECK_LIB(rt, clock_gettime, [CLOCK_GETTIME_LIB=-lrt])
diff --git a/debugfs/Makefile.in b/debugfs/Makefile.in
index 67f8d0b6..8162df33 100644
--- a/debugfs/Makefile.in
+++ b/debugfs/Makefile.in
@@ -36,7 +36,7 @@ SRCS= debug_cmds.c $(srcdir)/debugfs.c $(srcdir)/util.c $(srcdir)/ls.c \
$(srcdir)/../e2fsck/recovery.c $(srcdir)/do_journal.c
LIBS= $(LIBSUPPORT) $(LIBEXT2FS) $(LIBE2P) $(LIBSS) $(LIBCOM_ERR) $(LIBBLKID) \
- $(LIBUUID) $(LIBMAGIC) $(SYSLIBS)
+ $(LIBUUID) $(LIBMAGIC) $(SYSLIBS) $(LIBARCHIVE)
DEPLIBS= $(DEPLIBSUPPORT) $(LIBEXT2FS) $(LIBE2P) $(DEPLIBSS) $(DEPLIBCOM_ERR) \
$(DEPLIBBLKID) $(DEPLIBUUID)
diff --git a/lib/config.h.in b/lib/config.h.in
index 076c3823..30477698 100644
--- a/lib/config.h.in
+++ b/lib/config.h.in
@@ -40,6 +40,9 @@
/* Define to 1 if you have the `add_key' function. */
#undef HAVE_ADD_KEY
+/* Define to 1 if you have the <archive.h> header file. */
+#undef HAVE_ARCHIVE_H
+
/* Define to 1 if you have the <attr/xattr.h> header file. */
#undef HAVE_ATTR_XATTR_H
diff --git a/lib/ext2fs/Makefile.in b/lib/ext2fs/Makefile.in
index 798ff609..e365793a 100644
--- a/lib/ext2fs/Makefile.in
+++ b/lib/ext2fs/Makefile.in
@@ -499,7 +499,7 @@ tst_libext2fs: $(DEBUG_OBJS) \
$(Q) $(CC) -o tst_libext2fs $(ALL_LDFLAGS) -DDEBUG $(DEBUG_OBJS) \
$(STATIC_LIBSS) $(STATIC_LIBE2P) $(LIBSUPPORT) \
$(STATIC_LIBEXT2FS) $(LIBBLKID) $(LIBUUID) $(LIBMAGIC) \
- $(STATIC_LIBCOM_ERR) $(SYSLIBS) -I $(top_srcdir)/debugfs
+ $(STATIC_LIBCOM_ERR) $(SYSLIBS) $(LIBARCHIVE) -I $(top_srcdir)/debugfs
tst_inline: $(srcdir)/inline.c $(STATIC_LIBEXT2FS) $(DEPSTATIC_LIBCOM_ERR)
$(E) " LD $@"
diff --git a/misc/Makefile.in b/misc/Makefile.in
index e5420bbd..c42d1f45 100644
--- a/misc/Makefile.in
+++ b/misc/Makefile.in
@@ -281,7 +281,7 @@ mke2fs: $(MKE2FS_OBJS) $(DEPLIBS) $(LIBE2P) $(DEPLIBBLKID) $(DEPLIBUUID) \
$(E) " LD $@"
$(Q) $(CC) $(ALL_LDFLAGS) -o mke2fs $(MKE2FS_OBJS) $(LIBS) $(LIBBLKID) \
$(LIBUUID) $(LIBEXT2FS) $(LIBE2P) $(LIBINTL) \
- $(SYSLIBS) $(LIBMAGIC)
+ $(SYSLIBS) $(LIBMAGIC) $(LIBARCHIVE)
mke2fs.static: $(MKE2FS_OBJS) $(STATIC_DEPLIBS) $(STATIC_LIBE2P) $(DEPSTATIC_LIBUUID) \
$(DEPSTATIC_LIBBLKID)
diff --git a/misc/create_inode.c b/misc/create_inode.c
index a3a34cd9..0c9009a5 100644
--- a/misc/create_inode.c
+++ b/misc/create_inode.c
@@ -39,6 +39,164 @@
#include "create_inode.h"
#include "support/nls-enable.h"
+#ifdef HAVE_ARCHIVE_H
+#include <locale.h>
+#include <libgen.h>
+#include <archive.h>
+#include <archive_entry.h>
+
+static const char *(*dl_archive_entry_hardlink)(struct archive_entry *);
+static const char *(*dl_archive_entry_pathname)(struct archive_entry *);
+static const struct stat *(*dl_archive_entry_stat)(struct archive_entry *);
+static const char *(*dl_archive_entry_symlink)(struct archive_entry *);
+static int (*dl_archive_entry_xattr_count)(struct archive_entry *);
+static int (*dl_archive_entry_xattr_next)(struct archive_entry *, const char **, const void **, size_t *);
+static int (*dl_archive_entry_xattr_reset)(struct archive_entry *);
+static const char *(*dl_archive_error_string)(struct archive *);
+static int (*dl_archive_read_close)(struct archive *);
+static la_ssize_t (*dl_archive_read_data)(struct archive *, void *, size_t);
+static int (*dl_archive_read_free)(struct archive *);
+static struct archive *(*dl_archive_read_new)(void);
+static int (*dl_archive_read_next_header)(struct archive *, struct archive_entry **);
+static int (*dl_archive_read_open_filename)(struct archive *, const char *filename, size_t);
+static int (*dl_archive_read_support_filter_all)(struct archive *);
+static int (*dl_archive_read_support_format_all)(struct archive *);
+
+#ifdef HAVE_DLOPEN
+#include <dlfcn.h>
+
+static void *libarchive_handle;
+
+static int libarchive_available(void) {
+ if (!libarchive_handle) {
+ libarchive_handle = dlopen("libarchive.so.13", RTLD_NOW);
+ if (!libarchive_handle)
+ return 0;
+
+ dl_archive_entry_hardlink =
+ (const char *(*)(struct archive_entry *))
+ dlsym(libarchive_handle, "archive_entry_hardlink");
+ if (!dl_archive_entry_hardlink) {
+ return 0;
+ }
+ dl_archive_entry_pathname =
+ (const char *(*)(struct archive_entry *))
+ dlsym(libarchive_handle, "archive_entry_pathname");
+ if (!dl_archive_entry_pathname) {
+ return 0;
+ }
+ dl_archive_entry_stat =
+ (const struct stat *(*)(struct archive_entry *))
+ dlsym(libarchive_handle, "archive_entry_stat");
+ if (!dl_archive_entry_stat) {
+ return 0;
+ }
+ dl_archive_entry_symlink =
+ (const char *(*)(struct archive_entry *))
+ dlsym(libarchive_handle, "archive_entry_symlink");
+ if (!dl_archive_entry_symlink) {
+ return 0;
+ }
+ dl_archive_entry_xattr_count =
+ (int (*)(struct archive_entry *))
+ dlsym(libarchive_handle, "archive_entry_xattr_count");
+ if (!dl_archive_entry_xattr_count) {
+ return 0;
+ }
+ dl_archive_entry_xattr_next =
+ (int (*)(struct archive_entry *, const char **, const void **, size_t *))
+ dlsym(libarchive_handle, "archive_entry_xattr_next");
+ if (!dl_archive_entry_xattr_next) {
+ return 0;
+ }
+ dl_archive_entry_xattr_reset =
+ (int (*)(struct archive_entry *))
+ dlsym(libarchive_handle, "archive_entry_xattr_reset");
+ if (!dl_archive_entry_xattr_reset) {
+ return 0;
+ }
+ dl_archive_error_string =
+ (const char *(*)(struct archive *))
+ dlsym(libarchive_handle, "archive_error_string");
+ if (!dl_archive_error_string) {
+ return 0;
+ }
+ dl_archive_read_close =
+ (int (*)(struct archive *))
+ dlsym(libarchive_handle, "archive_read_close");
+ if (!dl_archive_read_close) {
+ return 0;
+ }
+ dl_archive_read_data =
+ (la_ssize_t (*)(struct archive *, void *, size_t))
+ dlsym(libarchive_handle, "archive_read_data");
+ if (!dl_archive_read_data) {
+ return 0;
+ }
+ dl_archive_read_free =
+ (int (*)(struct archive *))
+ dlsym(libarchive_handle, "archive_read_free");
+ if (!dl_archive_read_free) {
+ return 0;
+ }
+ dl_archive_read_new =
+ (struct archive *(*)(void))
+ dlsym(libarchive_handle, "archive_read_new");
+ if (!dl_archive_read_new) {
+ return 0;
+ }
+ dl_archive_read_next_header =
+ (int (*)(struct archive *, struct archive_entry **))
+ dlsym(libarchive_handle, "archive_read_next_header");
+ if (!dl_archive_read_next_header) {
+ return 0;
+ }
+ dl_archive_read_open_filename =
+ (int (*)(struct archive *, const char *filename, size_t))
+ dlsym(libarchive_handle, "archive_read_open_filename");
+ if (!dl_archive_read_open_filename) {
+ return 0;
+ }
+ dl_archive_read_support_filter_all =
+ (int (*)(struct archive *))
+ dlsym(libarchive_handle, "archive_read_support_filter_all");
+ if (!dl_archive_read_support_filter_all) {
+ return 0;
+ }
+ dl_archive_read_support_format_all =
+ (int (*)(struct archive *))
+ dlsym(libarchive_handle, "archive_read_support_format_all");
+ if (!dl_archive_read_support_format_all) {
+ return 0;
+ }
+ }
+
+ return 1;
+}
+#elif
+static int libarchive_available(void) {
+ dl_archive_entry_hardlink = archive_entry_hardlink;
+ dl_archive_entry_pathname = archive_entry_pathname;
+ dl_archive_entry_stat = archive_entry_stat;
+ dl_archive_entry_symlink = archive_entry_symlink;
+ dl_archive_entry_xattr_count = archive_entry_xattr_count;
+ dl_archive_entry_xattr_next = archive_entry_xattr_next;
+ dl_archive_entry_xattr_reset = archive_entry_xattr_reset;
+ dl_archive_error_string = archive_error_string;
+ dl_archive_read_close = archive_read_close;
+ dl_archive_read_data = archive_read_data;
+ dl_archive_read_free = archive_read_free;
+ dl_archive_read_new = archive_read_new;
+ dl_archive_read_next_header = archive_read_next_header;
+ dl_archive_read_open_filename = archive_read_open_filename;
+ dl_archive_read_support_filter_all = archive_read_support_filter_all;
+ dl_archive_read_support_format_all = archive_read_support_format_all;
+
+ return 1;
+}
+#endif
+#endif
+
/* 64KiB is the minimum blksize to best minimize system call overhead. */
#define COPY_FILE_BUFLEN 65536
@@ -109,7 +267,7 @@ static errcode_t add_link(ext2_filsys fs, ext2_ino_t parent_ino,
/* Set the uid, gid, mode and time for the inode */
static errcode_t set_inode_extra(ext2_filsys fs, ext2_ino_t ino,
- struct stat *st)
+ const struct stat *st)
{
errcode_t retval;
struct ext2_inode inode;
@@ -1043,8 +1201,429 @@ out:
return retval;
}
+#ifdef HAVE_ARCHIVE_H
+static errcode_t __find_path(ext2_filsys fs, ext2_ino_t root, const char *name,
+ ext2_ino_t *inode) {
+ errcode_t retval;
+ ext2_ino_t tmpino;
+ char *p, *n, *n2 = strdup(name);
+ if (n2 == NULL) {
+ retval = errno;
+ goto out;
+ }
+ n = n2;
+ *inode = root;
+ // any number of leading slashes
+ while(*n == '/') {
+ n++;
+ }
+ while(*n) {
+ // replace the next slash by a NULL, if any
+ if((p = strchr(n, '/')))
+ (*p) = 0;
+ // find the inode of the next component
+ retval = ext2fs_lookup(fs, *inode, n, strlen(n), 0, &tmpino);
+ if (retval) {
+ goto out;
+ }
+ *inode = tmpino;
+ // continue the search at the character after the slash
+ if(p)
+ n = p + 1;
+ else
+ break;
+ }
+
+out:
+ free(n2);
+ return retval;
+}
+
+/* Rounds qty upto a multiple of siz. siz should be a power of 2 */
+static inline unsigned int __rndup(unsigned int qty, unsigned int siz) {
+ return (qty + (siz - 1)) & ~(siz - 1);
+}
+
+static errcode_t copy_file_chunk_tar(ext2_filsys fs, struct archive *archive, ext2_file_t e2_file,
+ off_t start, off_t end, char *buf,
+ char *zerobuf)
+{
+ off_t off, bpos;
+ ssize_t got, blen;
+ unsigned int written;
+ char *ptr;
+ errcode_t err = 0;
+
+ for (off = start; off < end; off += COPY_FILE_BUFLEN) {
+ got = dl_archive_read_data(archive, buf, COPY_FILE_BUFLEN);
+ if (got < 0) {
+ err = errno;
+ goto fail;
+ }
+ for (bpos = 0, ptr = buf; bpos < got; bpos += fs->blocksize) {
+ blen = fs->blocksize;
+ if (blen > got - bpos)
+ blen = got - bpos;
+ if (memcmp(ptr, zerobuf, blen) == 0) {
+ ptr += blen;
+ continue;
+ }
+ err = ext2fs_file_llseek(e2_file, off + bpos,
+ EXT2_SEEK_SET, NULL);
+ if (err)
+ goto fail;
+ while (blen > 0) {
+ err = ext2fs_file_write(e2_file, ptr, blen,
+ &written);
+ if (err)
+ goto fail;
+ if (written == 0) {
+ err = EIO;
+ goto fail;
+ }
+ blen -= written;
+ ptr += written;
+ }
+ }
+ }
+fail:
+ return err;
+}
+static errcode_t copy_file_tar(ext2_filsys fs, struct archive *archive, const struct stat *statbuf,
+ ext2_ino_t ino)
+{
+ ext2_file_t e2_file;
+ char *buf = NULL, *zerobuf = NULL;
+ errcode_t err, close_err;
+
+ err = ext2fs_file_open(fs, ino, EXT2_FILE_WRITE, &e2_file);
+ if (err)
+ return err;
+
+ err = ext2fs_get_mem(COPY_FILE_BUFLEN, &buf);
+ if (err)
+ goto out;
+
+ err = ext2fs_get_memzero(fs->blocksize, &zerobuf);
+ if (err)
+ goto out;
+
+ err = copy_file_chunk_tar(fs, archive, e2_file, 0, statbuf->st_size, buf,
+ zerobuf);
+out:
+ ext2fs_free_mem(&zerobuf);
+ ext2fs_free_mem(&buf);
+ close_err = ext2fs_file_close(e2_file);
+ if (err == 0)
+ err = close_err;
+ return err;
+}
+
+
+errcode_t do_write_internal_tar(ext2_filsys fs, ext2_ino_t cwd, struct archive *archive,
+ const char *dest, const struct stat *statbuf)
+{
+ ext2_ino_t newfile;
+ errcode_t retval;
+ struct ext2_inode inode;
+ char *cp;
+ retval = ext2fs_new_inode(fs, cwd, 010755, 0, &newfile);
+ if (retval)
+ goto out;
+#ifdef DEBUGFS
+ printf("Allocated inode: %u\n", newfile);
+#endif
+ retval = ext2fs_link(fs, cwd, dest, newfile, EXT2_FT_REG_FILE);
+ if (retval == EXT2_ET_DIR_NO_SPACE) {
+ retval = ext2fs_expand_dir(fs, cwd);
+ if (retval)
+ goto out;
+ retval = ext2fs_link(fs, cwd, dest, newfile,
+ EXT2_FT_REG_FILE);
+ }
+ if (retval)
+ goto out;
+ if (ext2fs_test_inode_bitmap2(fs->inode_map, newfile))
+ com_err(__func__, 0, "Warning: inode already set");
+ ext2fs_inode_alloc_stats2(fs, newfile, +1, 0);
+ memset(&inode, 0, sizeof(inode));
+ inode.i_mode = (statbuf->st_mode & ~S_IFMT) | LINUX_S_IFREG;
+ inode.i_atime = inode.i_ctime = inode.i_mtime =
+ fs->now ? fs->now : time(0);
+ inode.i_links_count = 1;
+ retval = ext2fs_inode_size_set(fs, &inode, statbuf->st_size);
+ if (retval)
+ goto out;
+ if (ext2fs_has_feature_inline_data(fs->super)) {
+ inode.i_flags |= EXT4_INLINE_DATA_FL;
+ } else if (ext2fs_has_feature_extents(fs->super)) {
+ ext2_extent_handle_t handle;
+
+ inode.i_flags &= ~EXT4_EXTENTS_FL;
+ retval = ext2fs_extent_open2(fs, newfile, &inode, &handle);
+ if (retval)
+ goto out;
+ ext2fs_extent_free(handle);
+ }
+
+ retval = ext2fs_write_new_inode(fs, newfile, &inode);
+ if (retval)
+ goto out;
+ if (inode.i_flags & EXT4_INLINE_DATA_FL) {
+ retval = ext2fs_inline_data_init(fs, newfile);
+ if (retval)
+ goto out;
+ }
+ if (LINUX_S_ISREG(inode.i_mode)) {
+ retval = copy_file_tar(fs, archive, statbuf, newfile);
+ if (retval)
+ goto out;
+ }
+out:
+ return retval;
+}
+
+static errcode_t set_inode_xattr_tar(ext2_filsys fs, ext2_ino_t ino,
+ struct archive_entry *entry)
+{
+ errcode_t retval, close_retval;
+ struct ext2_xattr_handle *handle;
+ ssize_t size;
+ const char *name;
+ const void *value;
+ size_t value_size;
+
+ if (no_copy_xattrs)
+ return 0;
+
+ size = dl_archive_entry_xattr_count(entry);
+ if (size == 0) {
+ return 0;
+ }
+
+ retval = ext2fs_xattrs_open(fs, ino, &handle);
+ if (retval) {
+ if (retval == EXT2_ET_MISSING_EA_FEATURE)
+ return 0;
+ com_err(__func__, retval, _("while opening inode %u"), ino);
+ return retval;
+ }
+
+ retval = ext2fs_xattrs_read(handle);
+ if (retval) {
+ com_err(__func__, retval,
+ _("while reading xattrs for inode %u"), ino);
+ goto out;
+ }
+
+ dl_archive_entry_xattr_reset(entry);
+ while (dl_archive_entry_xattr_next(entry, &name, &value, &value_size) == ARCHIVE_OK) {
+ if (strcmp(name, "security.capability") != 0) {
+ continue;
+ }
+
+ retval = ext2fs_xattr_set(handle, name, value, value_size);
+ if (retval) {
+ com_err(__func__, retval,
+ _("while writing attribute \"%s\" to inode %u"),
+ name, ino);
+ break;
+ }
+
+ }
+ out:
+ close_retval = ext2fs_xattrs_close(&handle);
+ if (close_retval) {
+ com_err(__func__, retval, _("while closing inode %u"), ino);
+ retval = retval ? retval : close_retval;
+ }
+ return retval;
+}
+
+static errcode_t __populate_fs_from_tar(ext2_filsys fs, ext2_ino_t root_ino,
+ const char *source_tar, ext2_ino_t root,
+ struct hdlinks_s *hdlinks,
+ struct file_info *target,
+ struct fs_ops_callbacks *fs_callbacks)
+{
+ char *path2, *path3, *dir, *name, *ln_target;
+ unsigned int uid, gid, mode;
+ unsigned long ctime, mtime;
+ struct archive *a;
+ struct archive_entry *entry;
+ errcode_t retval = 0;
+ locale_t archive_locale;
+ locale_t old_locale;
+ ext2_ino_t dirinode, tmpino;
+ const struct stat *st;
+
+ if (!libarchive_available()) {
+ com_err(__func__, 0, _("you need libarchive to be able to process tarballs"));
+ return 1;
+ }
+
+ archive_locale = newlocale(LC_CTYPE_MASK, "", (locale_t)0);
+ old_locale = uselocale(archive_locale);
+ a = dl_archive_read_new();
+ if (a == NULL) {
+ retval = 1;
+ com_err(__func__, retval, _("while creating archive reader"));
+ goto out;
+ }
+ if (dl_archive_read_support_filter_all(a) != ARCHIVE_OK) {
+ retval = 1;
+ com_err(__func__, retval, _("while enabling decompression"));
+ goto out;
+ }
+ if (dl_archive_read_support_format_all(a) != ARCHIVE_OK) {
+ retval = 1;
+ com_err(__func__, retval, _("while enabling reader formats"));
+ goto out;
+ }
+
+ if ((retval = dl_archive_read_open_filename(a, source_tar, 4096))) {
+ com_err(__func__, retval, _("while opening \"%s\""), dl_archive_error_string(a));
+ goto out;
+ }
+
+ for (;;) {
+ retval = dl_archive_read_next_header(a, &entry);
+ if (retval == ARCHIVE_EOF) {
+ retval = 0;
+ break;
+ }
+ if (retval != ARCHIVE_OK) {
+ com_err(__func__, retval, _("cannot read archive header: \"%s\""),
+ dl_archive_error_string(a));
+ goto out;
+ }
+ path2 = strdup(dl_archive_entry_pathname(entry));
+ path3 = strdup(dl_archive_entry_pathname(entry));
+ name = basename(path2);
+ dir = dirname(path3);
+ if(retval = __find_path(fs, root_ino, dir, &dirinode)) {
+ com_err(__func__, retval,
+ _("cannot find directory \"%s\" to create \"%s\""), dir, name);
+ goto out;
+ }
+ st = dl_archive_entry_stat(entry);
+ retval = ext2fs_namei(fs, root, dirinode, name, &tmpino);
+ if (!retval) {
+ // repeated element in tar
+ // FIXME: if regular file, update content
+ } else {
+ // no special casing for sockets and symlinks on windows is needed
+ // because even on windows we can have tarballs containing those files
+ switch(st->st_mode & S_IFMT)
+ {
+ case S_IFCHR:
+ case S_IFBLK:
+ case S_IFIFO:
+ case S_IFSOCK:
+ retval = do_mknod_internal(fs, dirinode, name,
+ st->st_mode, st->st_rdev);
+ if (retval) {
+ com_err(__func__, retval,
+ _("while creating special file "
+ "\"%s\""), name);
+ goto out;
+ }
+ break;
+ case S_IFLNK:
+ ln_target = calloc(1, __rndup(strlen(dl_archive_entry_symlink(entry)), 1024));
+ strcpy(ln_target, dl_archive_entry_symlink(entry));
+ retval = do_symlink_internal(fs, dirinode, name,
+ ln_target, root);
+ free(ln_target);
+ if (retval) {
+ com_err(__func__, retval,
+ _("while writing symlink\"%s\""),
+ name);
+ goto out;
+ }
+ break;
+ case S_IFREG:
+ retval = do_write_internal_tar(fs, dirinode, a, name, st);
+ if (retval) {
+ com_err(__func__, retval,
+ _("while writing file \"%s\""), name);
+ goto out;
+ }
+ break;
+ case S_IFDIR:
+ retval = do_mkdir_internal(fs, dirinode, name, root);
+ if (retval) {
+ com_err(__func__, retval,
+ _("while making dir \"%s\""), name);
+ goto out;
+ }
+ break;
+ default:
+ if (dl_archive_entry_hardlink(entry) != NULL) {
+ if(retval = __find_path(fs, root_ino, dl_archive_entry_hardlink(entry), &tmpino)) {
+ com_err(__func__, retval,
+ _("cannot find hardlink destination \"%s\" to create \"%s\""), dl_archive_entry_hardlink(entry), name);
+ goto out;
+ }
+ retval = add_link(fs, dirinode,
+ tmpino,
+ name);
+ if (retval) {
+ com_err(__func__, retval,
+ "while linking %s", name);
+ goto out;
+ }
+ } else {
+ com_err(__func__, 0,
+ _("ignoring entry \"%s\""), dl_archive_entry_pathname(entry));
+ }
+ }
+
+ retval = ext2fs_namei(fs, root, dirinode, name, &tmpino);
+ if (retval) {
+ com_err(name, retval, _("while looking up \"%s\""),
+ name);
+ goto out;
+ }
+ }
+
+ retval = set_inode_extra(fs, tmpino, st);
+ if (retval) {
+ com_err(__func__, retval,
+ _("while setting inode for \"%s\""), name);
+ goto out;
+ }
+
+ retval = set_inode_xattr_tar(fs, tmpino, entry);
+ if (retval) {
+ com_err(__func__, retval,
+ _("while setting xattrs for \"%s\""), name);
+ goto out;
+ }
+
+ if (fs_callbacks && fs_callbacks->end_create_new_inode) {
+ retval = fs_callbacks->end_create_new_inode(fs,
+ target->path, name, dirinode, root,
+ st->st_mode & S_IFMT);
+ if (retval)
+ goto out;
+ }
+
+ free(path2);
+ free(path3);
+ }
+
+out:
+ dl_archive_read_close(a);
+ dl_archive_read_free(a);
+ uselocale(old_locale);
+ freelocale(archive_locale);
+ return retval;
+}
+#endif
+
errcode_t populate_fs2(ext2_filsys fs, ext2_ino_t parent_ino,
- const char *source_dir, ext2_ino_t root,
+ const char *source, ext2_ino_t root,
struct fs_ops_callbacks *fs_callbacks)
{
struct file_info file_info;
@@ -1069,14 +1648,44 @@ errcode_t populate_fs2(ext2_filsys fs, ext2_ino_t parent_ino,
file_info.path_max_len = 255;
file_info.path = calloc(file_info.path_max_len, 1);
- retval = set_inode_xattr(fs, root, source_dir);
+ /* interpret input as tarball either if it's "-" (stdin) or if it's
+ * a regular file (or a symlink pointing to a regular file) */
+ if (strcmp(source, "-") == 0) {
+#ifdef HAVE_ARCHIVE_H
+ retval = __populate_fs_from_tar(fs, parent_ino, NULL, root, &hdlinks,
+ &file_info, fs_callbacks);
+#else
+ com_err(__func__, 0, _("you need to compile e2fsprogs with libarchive to be able to process tarballs"));
+ retval = 1;
+#endif
+ goto out;
+ } else {
+ struct stat st;
+ if (stat(source, &st)) {
+ retval = errno;
+ com_err(__func__, retval, _("while calling stat"));
+ return retval;
+ }
+ if (S_ISREG(st.st_mode)) {
+#ifdef HAVE_ARCHIVE_H
+ retval = __populate_fs_from_tar(fs, parent_ino, source, root, &hdlinks,
+ &file_info, fs_callbacks);
+#else
+ com_err(__func__, 0, _("you need to compile e2fsprogs with libarchive to be able to process tarballs"));
+ retval = 1;
+#endif
+ goto out;
+ }
+ }
+
+ retval = set_inode_xattr(fs, root, source);
if (retval) {
com_err(__func__, retval,
_("while copying xattrs on root directory"));
goto out;
}
- retval = __populate_fs(fs, parent_ino, source_dir, root, &hdlinks,
+ retval = __populate_fs(fs, parent_ino, source, root, &hdlinks,
&file_info, fs_callbacks);
out:
@@ -1086,7 +1695,7 @@ out:
}
errcode_t populate_fs(ext2_filsys fs, ext2_ino_t parent_ino,
- const char *source_dir, ext2_ino_t root)
+ const char *source, ext2_ino_t root)
{
- return populate_fs2(fs, parent_ino, source_dir, root, NULL);
+ return populate_fs2(fs, parent_ino, source, root, NULL);
}
diff --git a/misc/mke2fs.8.in b/misc/mke2fs.8.in
index 30f97bb5..744e9b11 100644
--- a/misc/mke2fs.8.in
+++ b/misc/mke2fs.8.in
@@ -23,7 +23,7 @@ mke2fs \- create an ext2/ext3/ext4 file system
]
[
.B \-d
-.I root-directory
+.I root-directory|tarball
]
[
.B \-D
@@ -239,9 +239,11 @@ enabled. (See the
man page for more details about bigalloc.) The default cluster size if
bigalloc is enabled is 16 times the block size.
.TP
-.BI \-d " root-directory"
-Copy the contents of the given directory into the root directory of the
-file system.
+.BI \-d " root-directory|tarball"
+Copy the contents of the given directory or tarball into the root directory of the
+file system. Tarball input is only available if mke2fs was compiled with
+libarchive support enabled and if the libarchive shared library is available
+at run-time. The special value "-" will read a tarball from standard input.
.TP
.B \-D
Use direct I/O when writing to the disk. This avoids mke2fs dirtying a
diff --git a/misc/mke2fs.c b/misc/mke2fs.c
index 4a9c1b09..4ffa9748 100644
--- a/misc/mke2fs.c
+++ b/misc/mke2fs.c
@@ -117,7 +117,7 @@ static char *mount_dir;
char *journal_device;
static int sync_kludge; /* Set using the MKE2FS_SYNC env. option */
char **fs_types;
-const char *src_root_dir; /* Copy files from the specified directory */
+const char *src_root; /* Copy files from the specified directory or tarball */
static char *undo_file;
static int android_sparse_file; /* -E android_sparse */
@@ -134,7 +134,7 @@ static void usage(void)
"[-C cluster-size]\n\t[-i bytes-per-inode] [-I inode-size] "
"[-J journal-options]\n"
"\t[-G flex-group-size] [-N number-of-inodes] "
- "[-d root-directory]\n"
+ "[-d root-directory|tarball]\n"
"\t[-m reserved-blocks-percentage] [-o creator-os]\n"
"\t[-g blocks-per-group] [-L volume-label] "
"[-M last-mounted-directory]\n\t[-O feature[,...]] "
@@ -1712,7 +1712,7 @@ profile_error:
}
break;
case 'd':
- src_root_dir = optarg;
+ src_root = optarg;
break;
case 'D':
direct_io = 1;
@@ -3551,12 +3551,12 @@ no_journal:
retval = mk_hugefiles(fs, device_name);
if (retval)
com_err(program_name, retval, "while creating huge files");
- /* Copy files from the specified directory */
- if (src_root_dir) {
+ /* Copy files from the specified directory or tarball */
+ if (src_root) {
if (!quiet)
printf("%s", _("Copying files into the device: "));
- retval = populate_fs(fs, EXT2_ROOT_INO, src_root_dir,
+ retval = populate_fs(fs, EXT2_ROOT_INO, src_root,
EXT2_ROOT_INO);
if (retval) {
com_err(program_name, retval, "%s",
diff --git a/tests/m_rootgnutar/expect b/tests/m_rootgnutar/expect
new file mode 100644
index 00000000..336e159e
--- /dev/null
+++ b/tests/m_rootgnutar/expect
@@ -0,0 +1,188 @@
+Filesystem volume name: <none>
+Last mounted on: <not available>
+Filesystem magic number: 0xEF53
+Filesystem revision #: 1 (dynamic)
+Filesystem features: has_journal ext_attr resize_inode dir_index filetype extent 64bit flex_bg sparse_super huge_file dir_nlink extra_isize metadata_csum
+Default mount options: (none)
+Filesystem state: clean
+Errors behavior: Continue
+Filesystem OS type: Linux
+Inode count: 1024
+Block count: 16384
+Reserved block count: 819
+Overhead clusters: 1543
+Free blocks: 14791
+Free inodes: 1005
+First block: 1
+Block size: 1024
+Fragment size: 1024
+Group descriptor size: 64
+Reserved GDT blocks: 127
+Blocks per group: 8192
+Fragments per group: 8192
+Inodes per group: 512
+Inode blocks per group: 128
+Flex block group size: 16
+Mount count: 0
+Check interval: 15552000 (6 months)
+Reserved blocks uid: 0
+Reserved blocks gid: 0
+First inode: 11
+Inode size: 256
+Required extra isize: 32
+Desired extra isize: 32
+Journal inode: 8
+Default directory hash: half_md4
+Journal backup: inode blocks
+Checksum type: crc32c
+Journal features: (none)
+Total journal size: 1024k
+Total journal blocks: 1024
+Max transaction length: 1024
+Fast commit length: 0
+Journal sequence: 0x00000001
+Journal start: 0
+
+
+Group 0: (Blocks 1-8192)
+ Primary superblock at 1, Group descriptors at 2-2
+ Reserved GDT blocks at 3-129
+ Block bitmap at 130 (+129)
+ Inode bitmap at 132 (+131)
+ Inode table at 134-261 (+133)
+ 7753 free blocks, 493 free inodes, 5 directories, 493 unused inodes
+ Free blocks: 440-8192
+ Free inodes: 20-512
+Group 1: (Blocks 8193-16383) [INODE_UNINIT]
+ Backup superblock at 8193, Group descriptors at 8194-8194
+ Reserved GDT blocks at 8195-8321
+ Block bitmap at 131 (bg #0 + 130)
+ Inode bitmap at 133 (bg #0 + 132)
+ Inode table at 262-389 (bg #0 + 261)
+ 7038 free blocks, 512 free inodes, 0 directories, 512 unused inodes
+ Free blocks: 9346-16383
+ Free inodes: 513-1024
+debugfs: stat /test/emptyfile
+Inode: III Type: regular
+Size: 0
+Fragment: Address: 0 Number: 0 Size: 0
+debugfs: stat /test/bigfile
+Inode: III Type: regular
+Size: 32768
+Fragment: Address: 0 Number: 0 Size: 0
+debugfs: stat /test/zerofile
+Inode: III Type: regular
+Size: 1025
+Fragment: Address: 0 Number: 0 Size: 0
+debugfs: stat /test/silly_bs_link
+Inode: III Type: symlink
+Size: 14
+Fragment: Address: 0 Number: 0 Size: 0
+debugfs: stat /test/emptydir
+Inode: III Type: directory
+Size: 1024
+Fragment: Address: 0 Number: 0 Size: 0
+debugfs: stat /test/dir
+Inode: III Type: directory
+Size: 1024
+Fragment: Address: 0 Number: 0 Size: 0
+debugfs: stat /test/dir/file
+Inode: III Type: regular
+Size: 8
+Fragment: Address: 0 Number: 0 Size: 0
+debugfs: ex /test/emptyfile
+Level Entries Logical Physical Length Flags
+debugfs: ex /test/bigfile
+Level Entries Logical Physical Length Flags
+X 0/0 1/1 0-31 AAA-BBB 32
+debugfs: ex /test/zerofile
+Level Entries Logical Physical Length Flags
+debugfs: ex /test/silly_bs_link
+/test/silly_bs_link: does not uses extent block maps
+debugfs: ex /test/emptydir
+Level Entries Logical Physical Length Flags
+X 0/0 1/1 0-0 AAA-BBB 1
+debugfs: ex /test/dir
+Level Entries Logical Physical Length Flags
+X 0/0 1/1 0-0 AAA-BBB 1
+debugfs: ex /test/dir/file
+Level Entries Logical Physical Length Flags
+X 0/0 1/1 0-0 AAA-BBB 1
+Filesystem volume name: <none>
+Last mounted on: <not available>
+Filesystem magic number: 0xEF53
+Filesystem revision #: 1 (dynamic)
+Filesystem features: has_journal ext_attr resize_inode dir_index filetype extent 64bit flex_bg sparse_super huge_file dir_nlink extra_isize metadata_csum
+Default mount options: (none)
+Filesystem state: clean
+Errors behavior: Continue
+Filesystem OS type: Linux
+Inode count: 1024
+Block count: 16384
+Reserved block count: 819
+Overhead clusters: 1543
+Free blocks: 14791
+Free inodes: 1005
+First block: 1
+Block size: 1024
+Fragment size: 1024
+Group descriptor size: 64
+Reserved GDT blocks: 127
+Blocks per group: 8192
+Fragments per group: 8192
+Inodes per group: 512
+Inode blocks per group: 128
+Flex block group size: 16
+Mount count: 0
+Check interval: 15552000 (6 months)
+Reserved blocks uid: 0
+Reserved blocks gid: 0
+First inode: 11
+Inode size: 256
+Required extra isize: 32
+Desired extra isize: 32
+Journal inode: 8
+Default directory hash: half_md4
+Journal backup: inode blocks
+Checksum type: crc32c
+Journal features: (none)
+Total journal size: 1024k
+Total journal blocks: 1024
+Max transaction length: 1024
+Fast commit length: 0
+Journal sequence: 0x00000001
+Journal start: 0
+
+
+Group 0: (Blocks 1-8192)
+ Primary superblock at 1, Group descriptors at 2-2
+ Reserved GDT blocks at 3-129
+ Block bitmap at 130 (+129)
+ Inode bitmap at 132 (+131)
+ Inode table at 134-261 (+133)
+ 7753 free blocks, 493 free inodes, 5 directories, 493 unused inodes
+ Free blocks: 440-8192
+ Free inodes: 20-512
+Group 1: (Blocks 8193-16383) [INODE_UNINIT]
+ Backup superblock at 8193, Group descriptors at 8194-8194
+ Reserved GDT blocks at 8195-8321
+ Block bitmap at 131 (bg #0 + 130)
+ Inode bitmap at 133 (bg #0 + 132)
+ Inode table at 262-389 (bg #0 + 261)
+ 7038 free blocks, 512 free inodes, 0 directories, 512 unused inodes
+ Free blocks: 9346-16383
+ Free inodes: 513-1024
+test/
+test/bigfile
+test/dir/
+test/dir/file
+test/emptydir/
+test/emptyfile
+test/silly_bs_link
+test/zerofile
+Pass 1: Checking inodes, blocks, and sizes
+Pass 2: Checking directory structure
+Pass 3: Checking directory connectivity
+Pass 4: Checking reference counts
+Pass 5: Checking group summary information
+test.img: 19/1024 files (0.0% non-contiguous), 1593/16384 blocks
diff --git a/tests/m_rootgnutar/output.sed b/tests/m_rootgnutar/output.sed
new file mode 100644
index 00000000..2e769678
--- /dev/null
+++ b/tests/m_rootgnutar/output.sed
@@ -0,0 +1,5 @@
+s/^[[:space:]]*\([0-9]*\)\/[[:space:]]*\([0-9]*\)[[:space:]]*\([0-9]*\)\/[[:space:]]*\([0-9]*\)[[:space:]]*\([0-9]*\)[[:space:]]*-[[:space:]]*\([0-9]*\)[[:space:]]*[0-9]*[[:space:]]*-[[:space:]]*[0-9]*[[:space:]]*\([0-9]*\)/X \1\/\2 \3\/\4 \5-\6 AAA-BBB \7/g
+s/^[[:space:]]*\([0-9]*\)\/[[:space:]]*\([0-9]*\)[[:space:]]*\([0-9]*\)\/[[:space:]]*\([0-9]*\)[[:space:]]*\([0-9]*\)[[:space:]]*-[[:space:]]*\([0-9]*\)[[:space:]]*[0-9]*[[:space:]]*\([0-9]*\)/Y \1\/\2 \3\/\4 \5-\6 AAA \7/g
+s/Mode:.*$//g
+s/User:.*Size:/Size:/g
+s/^Inode: [0-9]*/Inode: III/g
diff --git a/tests/m_rootgnutar/script b/tests/m_rootgnutar/script
new file mode 100644
index 00000000..949d9b5f
--- /dev/null
+++ b/tests/m_rootgnutar/script
@@ -0,0 +1,88 @@
+# vim: filetype=sh
+
+test_description="create fs image from GNU tarball"
+if ! test -x $DEBUGFS_EXE; then
+ echo "$test_name: $test_description: skipped (no debugfs)"
+ return 0
+fi
+if [ "$(grep -c 'define HAVE_ARCHIVE_H' ../lib/config.h)" -eq 0 ]; then
+ echo "$test_name: skipped (no libarchive)"
+ exit 0
+fi
+
+MKFS_TAR=$TMPFILE.tar
+MKFS_DIR=$TMPFILE.dir
+OUT=$test_name.log
+EXP=$test_dir/expect
+
+# we put everything in a subdir because we cannot rdump the root as that would
+# require permissions to changing ownership of /lost+found
+rm -rf $MKFS_DIR
+mkdir -p $MKFS_DIR/test
+touch $MKFS_DIR/test/emptyfile
+dd if=/dev/zero bs=1024 count=32 2> /dev/null | tr '\0' 'a' > $MKFS_DIR/test/bigfile
+dd if=/dev/zero of=$MKFS_DIR/test/zerofile bs=1 count=1 seek=1024 2> /dev/null
+ln -s /silly_bs_link $MKFS_DIR/test/silly_bs_link
+mkdir $MKFS_DIR/test/emptydir
+mkdir $MKFS_DIR/test/dir
+echo "Test me" > $MKFS_DIR/test/dir/file
+
+tar --sort=name -C $MKFS_DIR --format=gnu -cf $MKFS_TAR test
+rm -r $MKFS_DIR
+
+$MKE2FS -q -F -o Linux -T ext4 -O metadata_csum,64bit -E lazy_itable_init=1 -b 1024 -d $MKFS_TAR $TMPFILE 16384 > $OUT 2>&1
+
+$DUMPE2FS $TMPFILE >> $OUT 2>&1
+cat > $TMPFILE.cmd << ENDL
+stat /test/emptyfile
+stat /test/bigfile
+stat /test/zerofile
+stat /test/silly_bs_link
+stat /test/emptydir
+stat /test/dir
+stat /test/dir/file
+ENDL
+$DEBUGFS -f $TMPFILE.cmd $TMPFILE 2>&1 | egrep "(stat|Size:|Type:)" >> $OUT
+
+cat > $TMPFILE.cmd << ENDL
+ex /test/emptyfile
+ex /test/bigfile
+ex /test/zerofile
+ex /test/silly_bs_link
+ex /test/emptydir
+ex /test/dir
+ex /test/dir/file
+ENDL
+$DEBUGFS -f $TMPFILE.cmd $TMPFILE >> $OUT 2>&1
+
+$DUMPE2FS $TMPFILE >> $OUT 2>&1
+
+$DEBUGFS -R "dump /test/dir/file $TMPFILE.testme" $TMPFILE >> $OUT 2>&1
+
+# extract the files and directories from the image and tar them again to make
+# sure that a tarball from the image contents is bit-by-bit identical to the
+# tarball the image was created from -- essentially this checks whether a
+# roundtrip from tar to ext4 to tar remains identical
+mkdir "$MKFS_DIR"
+$DEBUGFS -R "rdump /test $MKFS_DIR" $TMPFILE >> $OUT 2>&1
+tar --sort=name -C $MKFS_DIR --format=gnu -cvf $TMPFILE.new.tar test >> $OUT 2>&1
+
+$FSCK -f -n $TMPFILE >> $OUT 2>&1
+
+sed -f $cmd_dir/filter.sed -f $test_dir/output.sed -e "s;$TMPFILE;test.img;" < $OUT > $OUT.tmp
+mv $OUT.tmp $OUT
+
+# Do the verification
+cmp -s $OUT $EXP && echo "Test me" | cmp -s - $TMPFILE.testme && cmp $MKFS_TAR $TMPFILE.new.tar
+status=$?
+
+if [ "$status" = 0 ] ; then
+ echo "$test_name: $test_description: ok"
+ touch $test_name.ok
+else
+ echo "$test_name: $test_description: failed"
+ diff $DIFF_OPTS $EXP $OUT > $test_name.failed
+fi
+
+rm -rf $MKFS_TAR $MKFS_DIR $TMPFILE.cmd $TMPFILE.test_rel.c $TMPFILE.new.tar
+unset MKFS_TAR MKFS_DIR OUT EXP
diff --git a/tests/m_rootpaxtar/expect b/tests/m_rootpaxtar/expect
new file mode 100644
index 00000000..54a2d4b6
--- /dev/null
+++ b/tests/m_rootpaxtar/expect
@@ -0,0 +1,87 @@
+Filesystem volume name: <none>
+Last mounted on: <not available>
+Filesystem magic number: 0xEF53
+Filesystem revision #: 1 (dynamic)
+Filesystem features: has_journal ext_attr resize_inode dir_index filetype extent 64bit flex_bg sparse_super huge_file dir_nlink extra_isize metadata_csum
+Default mount options: (none)
+Filesystem state: clean
+Errors behavior: Continue
+Filesystem OS type: Linux
+Inode count: 1024
+Block count: 16384
+Reserved block count: 819
+Overhead clusters: 1543
+Free blocks: 14827
+Free inodes: 1012
+First block: 1
+Block size: 1024
+Fragment size: 1024
+Group descriptor size: 64
+Reserved GDT blocks: 127
+Blocks per group: 8192
+Fragments per group: 8192
+Inodes per group: 512
+Inode blocks per group: 128
+Flex block group size: 16
+Mount count: 0
+Check interval: 15552000 (6 months)
+Reserved blocks uid: 0
+Reserved blocks gid: 0
+First inode: 11
+Inode size: 256
+Required extra isize: 32
+Desired extra isize: 32
+Journal inode: 8
+Default directory hash: half_md4
+Journal backup: inode blocks
+Checksum type: crc32c
+Journal features: (none)
+Total journal size: 1024k
+Total journal blocks: 1024
+Max transaction length: 1024
+Fast commit length: 0
+Journal sequence: 0x00000001
+Journal start: 0
+
+
+Group 0: (Blocks 1-8192)
+ Primary superblock at 1, Group descriptors at 2-2
+ Reserved GDT blocks at 3-129
+ Block bitmap at 130 (+129)
+ Inode bitmap at 132 (+131)
+ Inode table at 134-261 (+133)
+ 7789 free blocks, 500 free inodes, 2 directories, 500 unused inodes
+ Free blocks: 404-8192
+ Free inodes: 13-512
+Group 1: (Blocks 8193-16383) [INODE_UNINIT]
+ Backup superblock at 8193, Group descriptors at 8194-8194
+ Reserved GDT blocks at 8195-8321
+ Block bitmap at 131 (bg #0 + 130)
+ Inode bitmap at 133 (bg #0 + 132)
+ Inode table at 262-389 (bg #0 + 261)
+ 7038 free blocks, 512 free inodes, 0 directories, 512 unused inodes
+ Free blocks: 9346-16383
+ Free inodes: 513-1024
+debugfs: stat /file
+Inode: III Type: regular
+Generation: 0 Version: 0x00000000:00000000
+Size: 0
+File ACL: 0
+Links: 1 Blockcount: 0
+Fragment: Address: 0 Number: 0 Size: 0
+ ctime: 0x00000000:00000000 -- Thu Jan 1 00:00:00 1970
+ atime: 0x00000000:00000000 -- Thu Jan 1 00:00:00 1970
+ mtime: 0x00000000:00000000 -- Thu Jan 1 00:00:00 1970
+Size of extra inode fields: 32
+Extended attributes:
+ security.capability (20) = 01 00 00 02 00 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+EXTENTS:
+debugfs: ea_list /file
+Extended attributes:
+ security.capability (20) = 01 00 00 02 00 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+Pass 1: Checking inodes, blocks, and sizes
+Pass 2: Checking directory structure
+Pass 3: Checking directory connectivity
+Pass 4: Checking reference counts
+Pass 5: Checking group summary information
+test.img: 12/1024 files (0.0% non-contiguous), 1557/16384 blocks
diff --git a/tests/m_rootpaxtar/mkpaxtar.pl b/tests/m_rootpaxtar/mkpaxtar.pl
new file mode 100644
index 00000000..9152828b
--- /dev/null
+++ b/tests/m_rootpaxtar/mkpaxtar.pl
@@ -0,0 +1,69 @@
+#!/usr/bin/env perl
+
+use strict;
+use warnings;
+
+my @entries = (
+ # filename mode type content
+ ['./PaxHeaders/file', oct(644), 'x', "57 SCHILY.xattr.security.capability=\x01\0\0\x02\0\x20\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x0a"],
+ ['file', oct(644), 0, ''],
+);
+
+my $num_entries = 0;
+
+foreach my $file (@entries) {
+ my ( $fname, $mode, $type, $content) = @{$file};
+ my $entry = pack(
+ 'a100 a8 a8 a8 a12 a12 A8 a1 a100 a6 a2 a32 a32 a8 a8 a155 x12',
+ $fname,
+ sprintf( '%07o', $mode ),
+ sprintf( '%07o', 0 ), # uid
+ sprintf( '%07o', 0 ), # gid
+ sprintf( '%011o', length $content ), # size
+ sprintf( '%011o', 0 ), # mtime
+ '', # checksum
+ $type,
+ '', # linkname
+ "ustar", # magic
+ "00", # version
+ '', # username
+ '', # groupname
+ '', # dev major
+ '', # dev minor
+ '', # prefix
+ );
+
+ # compute and insert checksum
+ substr( $entry, 148, 7 ) =
+ sprintf( "%06o\0", unpack( "%16C*", $entry ) );
+ print $entry;
+ $num_entries += 1;
+
+ if (length $content) {
+ print(pack 'a512', $content);
+ $num_entries += 1;
+ }
+}
+
+# https://www.gnu.org/software/tar/manual/html_node/Standard.html
+#
+# Physically, an archive consists of a series of file entries terminated by an
+# end-of-archive entry, which consists of two 512 blocks of zero bytes. At the
+# end of the archive file there are two 512-byte blocks filled with binary
+# zeros as an end-of-file marker.
+
+print(pack 'a512', '');
+print(pack 'a512', '');
+$num_entries += 2;
+
+# https://www.gnu.org/software/tar/manual/html_section/tar_76.html
+#
+# Some devices requires that all write operations be a multiple of a certain
+# size, and so, tar pads the archive out to the next record boundary.
+#
+# The default blocking factor is 20. With a block size of 512 bytes, we get a
+# record size of 10240.
+
+for (my $i = $num_entries; $i < 20; $i++) {
+ print(pack 'a512', '');
+}
diff --git a/tests/m_rootpaxtar/output.sed b/tests/m_rootpaxtar/output.sed
new file mode 100644
index 00000000..2e769678
--- /dev/null
+++ b/tests/m_rootpaxtar/output.sed
@@ -0,0 +1,5 @@
+s/^[[:space:]]*\([0-9]*\)\/[[:space:]]*\([0-9]*\)[[:space:]]*\([0-9]*\)\/[[:space:]]*\([0-9]*\)[[:space:]]*\([0-9]*\)[[:space:]]*-[[:space:]]*\([0-9]*\)[[:space:]]*[0-9]*[[:space:]]*-[[:space:]]*[0-9]*[[:space:]]*\([0-9]*\)/X \1\/\2 \3\/\4 \5-\6 AAA-BBB \7/g
+s/^[[:space:]]*\([0-9]*\)\/[[:space:]]*\([0-9]*\)[[:space:]]*\([0-9]*\)\/[[:space:]]*\([0-9]*\)[[:space:]]*\([0-9]*\)[[:space:]]*-[[:space:]]*\([0-9]*\)[[:space:]]*[0-9]*[[:space:]]*\([0-9]*\)/Y \1\/\2 \3\/\4 \5-\6 AAA \7/g
+s/Mode:.*$//g
+s/User:.*Size:/Size:/g
+s/^Inode: [0-9]*/Inode: III/g
diff --git a/tests/m_rootpaxtar/script b/tests/m_rootpaxtar/script
new file mode 100644
index 00000000..41dc7c38
--- /dev/null
+++ b/tests/m_rootpaxtar/script
@@ -0,0 +1,44 @@
+# vim: filetype=sh
+
+test_description="create fs image from pax tarball with xattrs"
+if ! test -x $DEBUGFS_EXE; then
+ echo "$test_name: $test_description: skipped (no debugfs)"
+ return 0
+fi
+if [ "$(grep -c 'define HAVE_ARCHIVE_H' ../lib/config.h)" -eq 0 ]; then
+ echo "$test_name: skipped (no libarchive)"
+ exit 0
+fi
+
+OUT=$test_name.log
+EXP=$test_dir/expect
+
+perl $test_dir/mkpaxtar.pl \
+ | $MKE2FS -q -F -o Linux -T ext4 -O metadata_csum,64bit -E lazy_itable_init=1 -b 1024 -d - $TMPFILE 16384 > $OUT 2>&1
+
+$DUMPE2FS $TMPFILE >> $OUT 2>&1
+cat > $TMPFILE.cmd << ENDL
+stat /file
+ea_list /file
+ENDL
+$DEBUGFS -f $TMPFILE.cmd $TMPFILE 2>&1 | egrep -v '^(crtime|Inode checksum):' >> $OUT
+
+$FSCK -f -n $TMPFILE >> $OUT 2>&1
+
+sed -f $cmd_dir/filter.sed -f $test_dir/output.sed -e "s;$TMPFILE;test.img;" < $OUT > $OUT.tmp
+mv $OUT.tmp $OUT
+
+# Do the verification
+cmp -s $OUT $EXP
+status=$?
+
+if [ "$status" = 0 ] ; then
+ echo "$test_name: $test_description: ok"
+ touch $test_name.ok
+else
+ echo "$test_name: $test_description: failed"
+ diff $DIFF_OPTS $EXP $OUT > $test_name.failed
+fi
+
+rm -rf $TMPFILE.cmd
+unset OUT EXP
diff --git a/tests/m_roottar/expect b/tests/m_roottar/expect
new file mode 100644
index 00000000..78e86c55
--- /dev/null
+++ b/tests/m_roottar/expect
@@ -0,0 +1,208 @@
+Filesystem volume name: <none>
+Last mounted on: <not available>
+Filesystem magic number: 0xEF53
+Filesystem revision #: 1 (dynamic)
+Filesystem features: has_journal ext_attr resize_inode dir_index filetype extent 64bit flex_bg sparse_super huge_file dir_nlink extra_isize metadata_csum
+Default mount options: (none)
+Filesystem state: clean
+Errors behavior: Continue
+Filesystem OS type: Linux
+Inode count: 1024
+Block count: 16384
+Reserved block count: 819
+Overhead clusters: 1543
+Free blocks: 14824
+Free inodes: 998
+First block: 1
+Block size: 1024
+Fragment size: 1024
+Group descriptor size: 64
+Reserved GDT blocks: 127
+Blocks per group: 8192
+Fragments per group: 8192
+Inodes per group: 512
+Inode blocks per group: 128
+Flex block group size: 16
+Mount count: 0
+Check interval: 15552000 (6 months)
+Reserved blocks uid: 0
+Reserved blocks gid: 0
+First inode: 11
+Inode size: 256
+Required extra isize: 32
+Desired extra isize: 32
+Journal inode: 8
+Default directory hash: half_md4
+Journal backup: inode blocks
+Checksum type: crc32c
+Journal features: (none)
+Total journal size: 1024k
+Total journal blocks: 1024
+Max transaction length: 1024
+Fast commit length: 0
+Journal sequence: 0x00000001
+Journal start: 0
+
+
+Group 0: (Blocks 1-8192)
+ Primary superblock at 1, Group descriptors at 2-2
+ Reserved GDT blocks at 3-129
+ Block bitmap at 130 (+129)
+ Inode bitmap at 132 (+131)
+ Inode table at 134-261 (+133)
+ 7786 free blocks, 486 free inodes, 5 directories, 486 unused inodes
+ Free blocks: 407-8192
+ Free inodes: 27-512
+Group 1: (Blocks 8193-16383) [INODE_UNINIT]
+ Backup superblock at 8193, Group descriptors at 8194-8194
+ Reserved GDT blocks at 8195-8321
+ Block bitmap at 131 (bg #0 + 130)
+ Inode bitmap at 133 (bg #0 + 132)
+ Inode table at 262-389 (bg #0 + 261)
+ 7038 free blocks, 512 free inodes, 0 directories, 512 unused inodes
+ Free blocks: 9346-16383
+ Free inodes: 513-1024
+debugfs: stat /dev/
+Inode: III Type: directory
+Generation: 0 Version: 0x00000000:00000000
+Size: 1024
+File ACL: 0
+Links: 4 Blockcount: 2
+Fragment: Address: 0 Number: 0 Size: 0
+Size of extra inode fields: 32
+EXTENTS:
+(0):404
+debugfs: stat /dev/console
+Inode: III Type: character special
+Generation: 0 Version: 0x00000000:00000000
+Size: 0
+File ACL: 0
+Links: 1 Blockcount: 0
+Fragment: Address: 0 Number: 0 Size: 0
+Size of extra inode fields: 32
+Device major/minor number: 05:01 (hex 05:01)
+debugfs: stat /dev/fd
+Inode: III Type: symlink
+Generation: 0 Version: 0x00000000:00000000
+Size: 13
+File ACL: 0
+Links: 1 Blockcount: 0
+Fragment: Address: 0 Number: 0 Size: 0
+Size of extra inode fields: 32
+Fast link dest: "/proc/self/fd"
+debugfs: stat /dev/full
+Inode: III Type: character special
+Generation: 0 Version: 0x00000000:00000000
+Size: 0
+File ACL: 0
+Links: 1 Blockcount: 0
+Fragment: Address: 0 Number: 0 Size: 0
+Size of extra inode fields: 32
+Device major/minor number: 01:07 (hex 01:07)
+debugfs: stat /dev/null
+Inode: III Type: character special
+Generation: 0 Version: 0x00000000:00000000
+Size: 0
+File ACL: 0
+Links: 1 Blockcount: 0
+Fragment: Address: 0 Number: 0 Size: 0
+Size of extra inode fields: 32
+Device major/minor number: 01:03 (hex 01:03)
+debugfs: stat /dev/ptmx
+Inode: III Type: character special
+Generation: 0 Version: 0x00000000:00000000
+Size: 0
+File ACL: 0
+Links: 1 Blockcount: 0
+Fragment: Address: 0 Number: 0 Size: 0
+Size of extra inode fields: 32
+Device major/minor number: 05:02 (hex 05:02)
+debugfs: stat /dev/pts/
+Inode: III Type: directory
+Generation: 0 Version: 0x00000000:00000000
+Size: 1024
+File ACL: 0
+Links: 2 Blockcount: 2
+Fragment: Address: 0 Number: 0 Size: 0
+Size of extra inode fields: 32
+EXTENTS:
+(0):405
+debugfs: stat /dev/random
+Inode: III Type: character special
+Generation: 0 Version: 0x00000000:00000000
+Size: 0
+File ACL: 0
+Links: 1 Blockcount: 0
+Fragment: Address: 0 Number: 0 Size: 0
+Size of extra inode fields: 32
+Device major/minor number: 01:08 (hex 01:08)
+debugfs: stat /dev/shm/
+Inode: III Type: directory
+Generation: 0 Version: 0x00000000:00000000
+Size: 1024
+File ACL: 0
+Links: 2 Blockcount: 2
+Fragment: Address: 0 Number: 0 Size: 0
+Size of extra inode fields: 32
+EXTENTS:
+(0):406
+debugfs: stat /dev/stderr
+Inode: III Type: symlink
+Generation: 0 Version: 0x00000000:00000000
+Size: 15
+File ACL: 0
+Links: 1 Blockcount: 0
+Fragment: Address: 0 Number: 0 Size: 0
+Size of extra inode fields: 32
+Fast link dest: "/proc/self/fd/2"
+debugfs: stat /dev/stdin
+Inode: III Type: symlink
+Generation: 0 Version: 0x00000000:00000000
+Size: 15
+File ACL: 0
+Links: 1 Blockcount: 0
+Fragment: Address: 0 Number: 0 Size: 0
+Size of extra inode fields: 32
+Fast link dest: "/proc/self/fd/0"
+debugfs: stat /dev/stdout
+Inode: III Type: symlink
+Generation: 0 Version: 0x00000000:00000000
+Size: 15
+File ACL: 0
+Links: 1 Blockcount: 0
+Fragment: Address: 0 Number: 0 Size: 0
+Size of extra inode fields: 32
+Fast link dest: "/proc/self/fd/1"
+debugfs: stat /dev/tty
+Inode: III Type: character special
+Generation: 0 Version: 0x00000000:00000000
+Size: 0
+File ACL: 0
+Links: 1 Blockcount: 0
+Fragment: Address: 0 Number: 0 Size: 0
+Size of extra inode fields: 32
+Device major/minor number: 05:00 (hex 05:00)
+debugfs: stat /dev/urandom
+Inode: III Type: character special
+Generation: 0 Version: 0x00000000:00000000
+Size: 0
+File ACL: 0
+Links: 1 Blockcount: 0
+Fragment: Address: 0 Number: 0 Size: 0
+Size of extra inode fields: 32
+Device major/minor number: 01:09 (hex 01:09)
+debugfs: stat /dev/zero
+Inode: III Type: character special
+Generation: 0 Version: 0x00000000:00000000
+Size: 0
+File ACL: 0
+Links: 1 Blockcount: 0
+Fragment: Address: 0 Number: 0 Size: 0
+Size of extra inode fields: 32
+Device major/minor number: 01:05 (hex 01:05)
+Pass 1: Checking inodes, blocks, and sizes
+Pass 2: Checking directory structure
+Pass 3: Checking directory connectivity
+Pass 4: Checking reference counts
+Pass 5: Checking group summary information
+test.img: 26/1024 files (0.0% non-contiguous), 1560/16384 blocks
diff --git a/tests/m_roottar/mktar.pl b/tests/m_roottar/mktar.pl
new file mode 100644
index 00000000..3a555afe
--- /dev/null
+++ b/tests/m_roottar/mktar.pl
@@ -0,0 +1,62 @@
+#!/usr/bin/env perl
+
+use strict;
+use warnings;
+
+# type codes:
+# 0 -> normal file
+# 1 -> hardlink
+# 2 -> symlink
+# 3 -> character special
+# 4 -> block special
+# 5 -> directory
+my @devfiles = (
+ # filename mode type link target major minor
+ ["", oct(755), 5, '', undef, undef],
+ ["console", oct(666), 3, '', 5, 1],
+ ["fd", oct(777), 2, '/proc/self/fd', undef, undef],
+ ["full", oct(666), 3, '', 1, 7],
+ ["null", oct(666), 3, '', 1, 3],
+ ["ptmx", oct(666), 3, '', 5, 2],
+ ["pts/", oct(755), 5, '', undef, undef],
+ ["random", oct(666), 3, '', 1, 8],
+ ["shm/", oct(755), 5, '', undef, undef],
+ ["stderr", oct(777), 2, '/proc/self/fd/2', undef, undef],
+ ["stdin", oct(777), 2, '/proc/self/fd/0', undef, undef],
+ ["stdout", oct(777), 2, '/proc/self/fd/1', undef, undef],
+ ["tty", oct(666), 3, '', 5, 0],
+ ["urandom", oct(666), 3, '', 1, 9],
+ ["zero", oct(666), 3, '', 1, 5],
+);
+
+my $mtime = time;
+if (exists $ENV{SOURCE_DATE_EPOCH}) {
+ $mtime = $ENV{SOURCE_DATE_EPOCH} + 0;
+}
+
+foreach my $file (@devfiles) {
+ my ( $fname, $mode, $type, $linkname, $devmajor, $devminor ) = @{$file};
+ my $entry = pack(
+ 'a100 a8 a8 a8 a12 a12 A8 a1 a100 a8 a32 a32 a8 a8 a155 x12',
+ "./dev/$fname",
+ sprintf( '%07o', $mode ),
+ sprintf( '%07o', 0 ), # uid
+ sprintf( '%07o', 0 ), # gid
+ sprintf( '%011o', 0 ), # size
+ sprintf( '%011o', $mtime ),
+ '', # checksum
+ $type,
+ $linkname,
+ "ustar ",
+ '', # username
+ '', # groupname
+ defined($devmajor) ? sprintf( '%07o', $devmajor ) : '',
+ defined($devminor) ? sprintf( '%07o', $devminor ) : '',
+ '', # prefix
+ );
+
+ # compute and insert checksum
+ substr( $entry, 148, 7 ) =
+ sprintf( "%06o\0", unpack( "%16C*", $entry ) );
+ print $entry;
+}
diff --git a/tests/m_roottar/output.sed b/tests/m_roottar/output.sed
new file mode 100644
index 00000000..2e769678
--- /dev/null
+++ b/tests/m_roottar/output.sed
@@ -0,0 +1,5 @@
+s/^[[:space:]]*\([0-9]*\)\/[[:space:]]*\([0-9]*\)[[:space:]]*\([0-9]*\)\/[[:space:]]*\([0-9]*\)[[:space:]]*\([0-9]*\)[[:space:]]*-[[:space:]]*\([0-9]*\)[[:space:]]*[0-9]*[[:space:]]*-[[:space:]]*[0-9]*[[:space:]]*\([0-9]*\)/X \1\/\2 \3\/\4 \5-\6 AAA-BBB \7/g
+s/^[[:space:]]*\([0-9]*\)\/[[:space:]]*\([0-9]*\)[[:space:]]*\([0-9]*\)\/[[:space:]]*\([0-9]*\)[[:space:]]*\([0-9]*\)[[:space:]]*-[[:space:]]*\([0-9]*\)[[:space:]]*[0-9]*[[:space:]]*\([0-9]*\)/Y \1\/\2 \3\/\4 \5-\6 AAA \7/g
+s/Mode:.*$//g
+s/User:.*Size:/Size:/g
+s/^Inode: [0-9]*/Inode: III/g
diff --git a/tests/m_roottar/script b/tests/m_roottar/script
new file mode 100644
index 00000000..134b9a2e
--- /dev/null
+++ b/tests/m_roottar/script
@@ -0,0 +1,57 @@
+# vim: filetype=sh
+
+test_description="create fs image from tarball"
+if ! test -x $DEBUGFS_EXE; then
+ echo "$test_name: $test_description: skipped (no debugfs)"
+ return 0
+fi
+if [ "$(grep -c 'define HAVE_ARCHIVE_H' ../lib/config.h)" -eq 0 ]; then
+ echo "$test_name: skipped (no libarchive)"
+ exit 0
+fi
+
+OUT=$test_name.log
+EXP=$test_dir/expect
+
+perl $test_dir/mktar.pl \
+ | $MKE2FS -q -F -o Linux -T ext4 -O metadata_csum,64bit -E lazy_itable_init=1 -b 1024 -d - $TMPFILE 16384 > $OUT 2>&1
+
+$DUMPE2FS $TMPFILE >> $OUT 2>&1
+cat > $TMPFILE.cmd << ENDL
+stat /dev/
+stat /dev/console
+stat /dev/fd
+stat /dev/full
+stat /dev/null
+stat /dev/ptmx
+stat /dev/pts/
+stat /dev/random
+stat /dev/shm/
+stat /dev/stderr
+stat /dev/stdin
+stat /dev/stdout
+stat /dev/tty
+stat /dev/urandom
+stat /dev/zero
+ENDL
+$DEBUGFS -f $TMPFILE.cmd $TMPFILE 2>&1 | egrep -v "(time|checksum):" >> $OUT
+
+$FSCK -f -n $TMPFILE >> $OUT 2>&1
+
+sed -f $cmd_dir/filter.sed -f $test_dir/output.sed -e "s;$TMPFILE;test.img;" < $OUT > $OUT.tmp
+mv $OUT.tmp $OUT
+
+# Do the verification
+cmp -s $OUT $EXP
+status=$?
+
+if [ "$status" = 0 ] ; then
+ echo "$test_name: $test_description: ok"
+ touch $test_name.ok
+else
+ echo "$test_name: $test_description: failed"
+ diff $DIFF_OPTS $EXP $OUT > $test_name.failed
+fi
+
+rm -rf $TMPFILE.cmd
+unset OUT EXP
--
2.40.0
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