[PATCH 1/3] test_fs: Allow running unprivileged
Mattijs Korpershoek
mkorpershoek at baylibre.com
Tue Aug 6 17:29:41 CEST 2024
Hi Richard,
Thank you for the patch.
On ven., août 02, 2024 at 11:33, Richard Weinberger <richard at nod.at> wrote:
> There is no need to mount the filesystem on the host side.
> All filesystem tools offer some way to fill the fs without mounting.
>
> So, create the content on the host side, create and fill the fs
> without mounting.
> No more sudo or guestmount needed.
>
> This new approach works because the tests don't care about user IDs
> and no device files are needed.
> If user IDs start to matter it's still possible to use wrapper
> tools like fakeroot in future while filling the fs.
>
> Signed-off-by: Richard Weinberger <richard at nod.at>
Running:
$ ./test/py/test.py --bd sandbox --build -k test_fs
On master: 100 skipped
With the series applied: no more tests are skipped
Tested-by: Mattijs Korpershoek <mkorpershoek at baylibre.com>
> ---
> test/py/tests/fs_helper.py | 11 +-
> test/py/tests/test_fs/conftest.py | 175 ++++++------------------------
> test/py/tests/test_ut.py | 4 +-
> 3 files changed, 47 insertions(+), 143 deletions(-)
>
> diff --git a/test/py/tests/fs_helper.py b/test/py/tests/fs_helper.py
> index 380f4c4dca..154e01264c 100644
> --- a/test/py/tests/fs_helper.py
> +++ b/test/py/tests/fs_helper.py
> @@ -9,7 +9,7 @@ import re
> import os
> from subprocess import call, check_call, check_output, CalledProcessError
>
> -def mk_fs(config, fs_type, size, prefix, size_gran = 0x100000):
> +def mk_fs(config, fs_type, size, prefix, src_dir, size_gran = 0x100000):
> """Create a file system volume
>
> Args:
> @@ -39,6 +39,13 @@ def mk_fs(config, fs_type, size, prefix, size_gran = 0x100000):
> else:
> fs_lnxtype = fs_type
>
> + if src_dir:
> + if fs_lnxtype == 'ext4':
> + mkfs_opt = mkfs_opt + ' -d ' + src_dir
> + elif fs_lnxtype != 'vfat':
> + # Implement src_dir for this fs!
> + raise
> +
> count = (size + size_gran - 1) // size_gran
>
> # Some distributions do not add /sbin to the default PATH, where mkfs lives
> @@ -55,6 +62,8 @@ def mk_fs(config, fs_type, size, prefix, size_gran = 0x100000):
> shell=True).decode()
> if 'metadata_csum' in sb_content:
> check_call(f'tune2fs -O ^metadata_csum {fs_img}', shell=True)
> + elif fs_lnxtype == 'vfat' and src_dir:
> + check_call(f'mcopy -i {fs_img} -vsmpQ {src_dir}/* ::/', shell=True)
> return fs_img
> except CalledProcessError:
> call(f'rm -f {fs_img}', shell=True)
> diff --git a/test/py/tests/test_fs/conftest.py b/test/py/tests/test_fs/conftest.py
> index fca5448837..59342a6e3d 100644
> --- a/test/py/tests/test_fs/conftest.py
> +++ b/test/py/tests/test_fs/conftest.py
> @@ -156,64 +156,6 @@ def tool_is_in_path(tool):
> return True
> return False
>
> -fuse_mounted = False
> -
> -def mount_fs(fs_type, device, mount_point):
> - """Mount a volume.
> -
> - Args:
> - fs_type: File system type.
> - device: Volume's file name.
> - mount_point: Mount point.
> -
> - Return:
> - Nothing.
> - """
> - global fuse_mounted
> -
> - try:
> - check_call('guestmount --pid-file guestmount.pid -a %s -m /dev/sda %s'
> - % (device, mount_point), shell=True)
> - fuse_mounted = True
> - return
> - except CalledProcessError:
> - fuse_mounted = False
> -
> - mount_opt = 'loop,rw'
> - if re.match('fat', fs_type):
> - mount_opt += ',umask=0000'
> -
> - check_call('sudo mount -o %s %s %s'
> - % (mount_opt, device, mount_point), shell=True)
> -
> - # may not be effective for some file systems
> - check_call('sudo chmod a+rw %s' % mount_point, shell=True)
> -
> -def umount_fs(mount_point):
> - """Unmount a volume.
> -
> - Args:
> - mount_point: Mount point.
> -
> - Return:
> - Nothing.
> - """
> - if fuse_mounted:
> - call('sync')
> - call('guestunmount %s' % mount_point, shell=True)
> -
> - try:
> - with open("guestmount.pid", "r") as pidfile:
> - pid = int(pidfile.read())
> - util.waitpid(pid, kill=True)
> - os.remove("guestmount.pid")
> -
> - except FileNotFoundError:
> - pass
> -
> - else:
> - call('sudo umount %s' % mount_point, shell=True)
> -
> #
> # Fixture for basic fs test
> # derived from test/fs/fs-test.sh
> @@ -241,14 +183,6 @@ def fs_obj_basic(request, u_boot_config):
> small_file = mount_dir + '/' + SMALL_FILE
> big_file = mount_dir + '/' + BIG_FILE
>
> - try:
> -
> - # 3GiB volume
> - fs_img = fs_helper.mk_fs(u_boot_config, fs_type, 0xc0000000, '3GB')
> - except CalledProcessError as err:
> - pytest.skip('Creating failed for filesystem: ' + fs_type + '. {}'.format(err))
> - return
> -
> try:
> check_call('mkdir -p %s' % mount_dir, shell=True)
> except CalledProcessError as err:
> @@ -256,15 +190,6 @@ def fs_obj_basic(request, u_boot_config):
> call('rm -f %s' % fs_img, shell=True)
> return
>
> - try:
> - # Mount the image so we can populate it.
> - mount_fs(fs_type, fs_img, mount_dir)
> - except CalledProcessError as err:
> - pytest.skip('Mounting to folder failed for filesystem: ' + fs_type + '. {}'.format(err))
> - call('rmdir %s' % mount_dir, shell=True)
> - call('rm -f %s' % fs_img, shell=True)
> - return
> -
> try:
> # Create a subdirectory.
> check_call('mkdir %s/SUBDIR' % mount_dir, shell=True)
> @@ -326,15 +251,20 @@ def fs_obj_basic(request, u_boot_config):
> % big_file, shell=True).decode()
> md5val.append(out.split()[0])
>
> + try:
> + # 3GiB volume
> + fs_img = fs_helper.mk_fs(u_boot_config, fs_type, 0xc0000000, '3GB', mount_dir)
> + except CalledProcessError as err:
> + pytest.skip('Creating failed for filesystem: ' + fs_type + '. {}'.format(err))
> + return
> +
> except CalledProcessError as err:
> pytest.skip('Setup failed for filesystem: ' + fs_type + '. {}'.format(err))
> - umount_fs(mount_dir)
> return
> else:
> - umount_fs(mount_dir)
> yield [fs_ubtype, fs_img, md5val]
> finally:
> - call('rmdir %s' % mount_dir, shell=True)
> + call('rm -rf %s' % mount_dir, shell=True)
> call('rm -f %s' % fs_img, shell=True)
>
> #
> @@ -363,14 +293,6 @@ def fs_obj_ext(request, u_boot_config):
> min_file = mount_dir + '/' + MIN_FILE
> tmp_file = mount_dir + '/tmpfile'
>
> - try:
> -
> - # 128MiB volume
> - fs_img = fs_helper.mk_fs(u_boot_config, fs_type, 0x8000000, '128MB')
> - except CalledProcessError as err:
> - pytest.skip('Creating failed for filesystem: ' + fs_type + '. {}'.format(err))
> - return
> -
> try:
> check_call('mkdir -p %s' % mount_dir, shell=True)
> except CalledProcessError as err:
> @@ -378,15 +300,6 @@ def fs_obj_ext(request, u_boot_config):
> call('rm -f %s' % fs_img, shell=True)
> return
>
> - try:
> - # Mount the image so we can populate it.
> - mount_fs(fs_type, fs_img, mount_dir)
> - except CalledProcessError as err:
> - pytest.skip('Mounting to folder failed for filesystem: ' + fs_type + '. {}'.format(err))
> - call('rmdir %s' % mount_dir, shell=True)
> - call('rm -f %s' % fs_img, shell=True)
> - return
> -
> try:
> # Create a test directory
> check_call('mkdir %s/dir1' % mount_dir, shell=True)
> @@ -427,15 +340,21 @@ def fs_obj_ext(request, u_boot_config):
> md5val.append(out.split()[0])
>
> check_call('rm %s' % tmp_file, shell=True)
> +
> + try:
> + # 128MiB volume
> + fs_img = fs_helper.mk_fs(u_boot_config, fs_type, 0x8000000, '128MB', mount_dir)
> + except CalledProcessError as err:
> + pytest.skip('Creating failed for filesystem: ' + fs_type + '. {}'.format(err))
> + return
> +
> except CalledProcessError:
> pytest.skip('Setup failed for filesystem: ' + fs_type)
> - umount_fs(mount_dir)
> return
> else:
> - umount_fs(mount_dir)
> yield [fs_ubtype, fs_img, md5val]
> finally:
> - call('rmdir %s' % mount_dir, shell=True)
> + call('rm -rf %s' % mount_dir, shell=True)
> call('rm -f %s' % fs_img, shell=True)
>
> #
> @@ -461,7 +380,7 @@ def fs_obj_mkdir(request, u_boot_config):
>
> try:
> # 128MiB volume
> - fs_img = fs_helper.mk_fs(u_boot_config, fs_type, 0x8000000, '128MB')
> + fs_img = fs_helper.mk_fs(u_boot_config, fs_type, 0x8000000, '128MB', None)
> except:
> pytest.skip('Setup failed for filesystem: ' + fs_type)
> return
> @@ -492,14 +411,6 @@ def fs_obj_unlink(request, u_boot_config):
>
> mount_dir = u_boot_config.persistent_data_dir + '/mnt'
>
> - try:
> -
> - # 128MiB volume
> - fs_img = fs_helper.mk_fs(u_boot_config, fs_type, 0x8000000, '128MB')
> - except CalledProcessError as err:
> - pytest.skip('Creating failed for filesystem: ' + fs_type + '. {}'.format(err))
> - return
> -
> try:
> check_call('mkdir -p %s' % mount_dir, shell=True)
> except CalledProcessError as err:
> @@ -507,15 +418,6 @@ def fs_obj_unlink(request, u_boot_config):
> call('rm -f %s' % fs_img, shell=True)
> return
>
> - try:
> - # Mount the image so we can populate it.
> - mount_fs(fs_type, fs_img, mount_dir)
> - except CalledProcessError as err:
> - pytest.skip('Mounting to folder failed for filesystem: ' + fs_type + '. {}'.format(err))
> - call('rmdir %s' % mount_dir, shell=True)
> - call('rm -f %s' % fs_img, shell=True)
> - return
> -
> try:
> # Test Case 1 & 3
> check_call('mkdir %s/dir1' % mount_dir, shell=True)
> @@ -538,15 +440,20 @@ def fs_obj_unlink(request, u_boot_config):
> check_call('dd if=/dev/urandom of=%s/dir5/file1 bs=1K count=1'
> % mount_dir, shell=True)
>
> + try:
> + # 128MiB volume
> + fs_img = fs_helper.mk_fs(u_boot_config, fs_type, 0x8000000, '128MB', mount_dir)
> + except CalledProcessError as err:
> + pytest.skip('Creating failed for filesystem: ' + fs_type + '. {}'.format(err))
> + return
> +
> except CalledProcessError:
> pytest.skip('Setup failed for filesystem: ' + fs_type)
> - umount_fs(mount_dir)
> return
> else:
> - umount_fs(mount_dir)
> yield [fs_ubtype, fs_img]
> finally:
> - call('rmdir %s' % mount_dir, shell=True)
> + call('rm -rf %s' % mount_dir, shell=True)
> call('rm -f %s' % fs_img, shell=True)
>
> #
> @@ -575,14 +482,6 @@ def fs_obj_symlink(request, u_boot_config):
> small_file = mount_dir + '/' + SMALL_FILE
> medium_file = mount_dir + '/' + MEDIUM_FILE
>
> - try:
> -
> - # 1GiB volume
> - fs_img = fs_helper.mk_fs(u_boot_config, fs_type, 0x40000000, '1GB')
> - except CalledProcessError as err:
> - pytest.skip('Creating failed for filesystem: ' + fs_type + '. {}'.format(err))
> - return
> -
> try:
> check_call('mkdir -p %s' % mount_dir, shell=True)
> except CalledProcessError as err:
> @@ -590,15 +489,6 @@ def fs_obj_symlink(request, u_boot_config):
> call('rm -f %s' % fs_img, shell=True)
> return
>
> - try:
> - # Mount the image so we can populate it.
> - mount_fs(fs_type, fs_img, mount_dir)
> - except CalledProcessError as err:
> - pytest.skip('Mounting to folder failed for filesystem: ' + fs_type + '. {}'.format(err))
> - call('rmdir %s' % mount_dir, shell=True)
> - call('rm -f %s' % fs_img, shell=True)
> - return
> -
> try:
> # Create a subdirectory.
> check_call('mkdir %s/SUBDIR' % mount_dir, shell=True)
> @@ -621,15 +511,20 @@ def fs_obj_symlink(request, u_boot_config):
> % medium_file, shell=True).decode()
> md5val.extend([out.split()[0]])
>
> + try:
> + # 1GiB volume
> + fs_img = fs_helper.mk_fs(u_boot_config, fs_type, 0x40000000, '1GB', mount_dir)
> + except CalledProcessError as err:
> + pytest.skip('Creating failed for filesystem: ' + fs_type + '. {}'.format(err))
> + return
> +
> except CalledProcessError:
> pytest.skip('Setup failed for filesystem: ' + fs_type)
> - umount_fs(mount_dir)
> return
> else:
> - umount_fs(mount_dir)
> yield [fs_ubtype, fs_img, md5val]
> finally:
> - call('rmdir %s' % mount_dir, shell=True)
> + call('rm -rf %s' % mount_dir, shell=True)
> call('rm -f %s' % fs_img, shell=True)
>
> #
> @@ -665,7 +560,7 @@ def fs_obj_fat(request, u_boot_config):
>
> try:
> # the volume size depends on the filesystem
> - fs_img = fs_helper.mk_fs(u_boot_config, fs_type, fs_size, f'{fs_size}', 1024)
> + fs_img = fs_helper.mk_fs(u_boot_config, fs_type, fs_size, f'{fs_size}', None, 1024)
> except:
> pytest.skip('Setup failed for filesystem: ' + fs_type)
> return
> diff --git a/test/py/tests/test_ut.py b/test/py/tests/test_ut.py
> index 05e1583059..3cef6c29fa 100644
> --- a/test/py/tests/test_ut.py
> +++ b/test/py/tests/test_ut.py
> @@ -538,8 +538,8 @@ def test_ut_dm_init(u_boot_console):
> u_boot_utils.run_and_log(
> u_boot_console, f'sfdisk {fn}', stdin=b'type=83')
>
> - fs_helper.mk_fs(u_boot_console.config, 'ext2', 0x200000, '2MB')
> - fs_helper.mk_fs(u_boot_console.config, 'fat32', 0x100000, '1MB')
> + fs_helper.mk_fs(u_boot_console.config, 'ext2', 0x200000, '2MB', None)
> + fs_helper.mk_fs(u_boot_console.config, 'fat32', 0x100000, '1MB', None)
>
> mmc_dev = 6
> fn = os.path.join(u_boot_console.config.source_dir, f'mmc{mmc_dev}.img')
> --
> 2.35.3
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