60788f5431
Implement directory listing (ls) for the ext4l filesystem driver. This includes path resolution with symlink following (limited to 8 levels to prevent loops). Add ext4l_ls() which uses ext4_lookup() for path resolution and ext4_readdir() for directory enumeration. The dir_context actor callback formats and prints each directory entry. Export ext4_lookup() from namei.c and add declarations to ext4.h. Add test_ls to the Python test suite, which creates a test file using debugfs and verifies it appears in the directory listing with the correct size. Co-developed-by: Claude Opus 4.5 <noreply@anthropic.com> Cover-letter: ext4l: Add support for listing directoties (Part H) This series adds directory-listing support to the ext4l filesystem driver. It exports a few required functions from the Linux ext4 code, fixes the dir_emit() stub to properly call the actor callback, and implements ext4l_ls() with path resolution and symlink following. END Signed-off-by: Simon Glass <simon.glass@canonical.com>
111 lines
3.2 KiB
C
111 lines
3.2 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Tests for ext4l filesystem (Linux ext4 port)
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*
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* Copyright 2025 Canonical Ltd
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* Written by Simon Glass <simon.glass@canonical.com>
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*/
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#include <command.h>
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#include <env.h>
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#include <ext4l.h>
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#include <fs.h>
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#include <fs_legacy.h>
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#include <u-boot/uuid.h>
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#include <test/test.h>
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#include <test/ut.h>
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#include <test/fs.h>
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#define EXT4L_ARG_IMAGE 0 /* fs_image: path to filesystem image */
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/**
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* fs_test_ext4l_probe_norun() - Test probing an ext4l filesystem
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*
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* This test verifies that the ext4l driver can successfully probe and
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* mount an ext4 filesystem image.
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*
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* Arguments:
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* fs_image: Path to the ext4 filesystem image
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*/
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static int fs_test_ext4l_probe_norun(struct unit_test_state *uts)
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{
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const char *fs_image = ut_str(EXT4L_ARG_IMAGE);
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ut_assertnonnull(fs_image);
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ut_assertok(run_commandf("host bind 0 %s", fs_image));
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ut_assertok(fs_set_blk_dev("host", "0", FS_TYPE_ANY));
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return 0;
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}
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FS_TEST_ARGS(fs_test_ext4l_probe_norun, UTF_SCAN_FDT | UTF_CONSOLE | UTF_MANUAL,
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{ "fs_image", UT_ARG_STR });
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/**
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* fs_test_ext4l_msgs_norun() - Test ext4l_msgs env var output
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*
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* This test verifies that setting ext4l_msgs=y causes mount messages
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* to be printed when probing an ext4 filesystem.
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*
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* Arguments:
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* fs_image: Path to the ext4 filesystem image
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*/
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static int fs_test_ext4l_msgs_norun(struct unit_test_state *uts)
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{
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const char *fs_image = ut_str(EXT4L_ARG_IMAGE);
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char uuid_str[UUID_STR_LEN + 1];
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u8 uuid[16];
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ut_assertnonnull(fs_image);
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ut_assertok(env_set("ext4l_msgs", "y"));
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console_record_reset_enable();
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ut_assertok(run_commandf("host bind 0 %s", fs_image));
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ut_assertok(fs_set_blk_dev("host", "0", FS_TYPE_ANY));
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/* Get the UUID and clear the env var now we have the output */
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ut_assertok(ext4l_get_uuid(uuid));
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uuid_bin_to_str(uuid, uuid_str, UUID_STR_FORMAT_STD);
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ut_assertok(env_set("ext4l_msgs", NULL));
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/*
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* Check messages. The probe test runs first and doesn't unmount,
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* so the journal needs recovery. Verify both messages.
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*/
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ut_assert_nextline("EXT4-fs (ext4l_mmc0): recovery complete");
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ut_assert_nextline("EXT4-fs (ext4l_mmc0): mounted filesystem %s r/w with ordered data mode. Quota mode: disabled.",
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uuid_str);
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ut_assert_console_end();
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return 0;
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}
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FS_TEST_ARGS(fs_test_ext4l_msgs_norun, UTF_SCAN_FDT | UTF_CONSOLE | UTF_MANUAL,
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{ "fs_image", UT_ARG_STR });
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/**
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* fs_test_ext4l_ls_norun() - Test ext4l ls command
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*
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* This test verifies that the ext4l driver can list directory contents.
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*
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* Arguments:
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* fs_image: Path to the ext4 filesystem image
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*/
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static int fs_test_ext4l_ls_norun(struct unit_test_state *uts)
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{
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const char *fs_image = ut_str(EXT4L_ARG_IMAGE);
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ut_assertnonnull(fs_image);
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ut_assertok(run_commandf("host bind 0 %s", fs_image));
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console_record_reset_enable();
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ut_assertok(run_commandf("ls host 0"));
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/*
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* The Python test adds testfile.txt (12 bytes) to the image.
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* Directory entries appear in hash order which varies between runs.
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* Verify the file entry appears with correct size (12 bytes).
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*/
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ut_assert_skip_to_line(" 12 testfile.txt");
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ut_assert_console_end();
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return 0;
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}
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FS_TEST_ARGS(fs_test_ext4l_ls_norun, UTF_SCAN_FDT | UTF_CONSOLE | UTF_MANUAL,
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{ "fs_image", UT_ARG_STR });
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