[PATCH v2 1/8] test_fs: Allow running unprivileged
Simon Glass
sjg at chromium.org
Thu Nov 21 23:32:07 CET 2024
From: Richard Weinberger <richard at nod.at>
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>
Signed-off-by: Simon Glass <sjg at chromium.org>
Tested-by: Mattijs Korpershoek <mkorpershoek at baylibre.com>
---
Changes in v2:
- Fix a few pylint errors
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 380f4c4dca3..ccfc0201a49 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=None, size_gran = 0x100000):
"""Create a file system volume
Args:
@@ -17,6 +17,7 @@ def mk_fs(config, fs_type, size, prefix, size_gran = 0x100000):
fs_type (str): File system type, e.g. 'ext4'
size (int): Size of file system in bytes
prefix (str): Prefix string of volume's file name
+ src_dir (str): Root directory to use, or None for none
size_gran (int): Size granularity of file system image in bytes
Raises:
@@ -39,6 +40,12 @@ 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':
+ raise ValueError(f'src_dir not implemented for fs {fs_lnxtype}')
+
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 fca54488374..59342a6e3dd 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 6d44191976b..70ac012b3ad 100644
--- a/test/py/tests/test_ut.py
+++ b/test/py/tests/test_ut.py
@@ -540,8 +540,8 @@ 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')
--
2.43.0
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