diff options
Diffstat (limited to 'tools/testing/selftests/landlock/fs_test.c')
-rw-r--r-- | tools/testing/selftests/landlock/fs_test.c | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/tools/testing/selftests/landlock/fs_test.c b/tools/testing/selftests/landlock/fs_test.c index 2911b5241583..83d565569512 100644 --- a/tools/testing/selftests/landlock/fs_test.c +++ b/tools/testing/selftests/landlock/fs_test.c @@ -10,6 +10,7 @@ #define _GNU_SOURCE #include <fcntl.h> #include <linux/landlock.h> +#include <linux/magic.h> #include <sched.h> #include <stdio.h> #include <string.h> @@ -19,6 +20,7 @@ #include <sys/sendfile.h> #include <sys/stat.h> #include <sys/sysmacros.h> +#include <sys/vfs.h> #include <unistd.h> #include "common.h" @@ -135,6 +137,19 @@ static bool supports_filesystem(const char *const filesystem) return res; } +static bool cwd_matches_fs(unsigned int fs_magic) +{ + struct statfs statfs_buf; + + if (!fs_magic) + return true; + + if (statfs(".", &statfs_buf)) + return true; + + return statfs_buf.f_type == fs_magic; +} + static void mkdir_parents(struct __test_metadata *const _metadata, const char *const path) { @@ -4500,6 +4515,7 @@ FIXTURE_VARIANT(layout3_fs) { const struct mnt_opt mnt; const char *const file_path; + unsigned int cwd_fs_magic; }; /* clang-format off */ @@ -4538,13 +4554,23 @@ FIXTURE_VARIANT_ADD(layout3_fs, sysfs) { .file_path = TMP_DIR "/kernel/notes", }; +FIXTURE_VARIANT_ADD(layout3_fs, hostfs) { + .mnt = { + .source = TMP_DIR, + .flags = MS_BIND, + }, + .file_path = TMP_DIR "/dir/file", + .cwd_fs_magic = HOSTFS_SUPER_MAGIC, +}; + FIXTURE_SETUP(layout3_fs) { struct stat statbuf; const char *slash; size_t dir_len; - if (!supports_filesystem(variant->mnt.type)) { + if (!supports_filesystem(variant->mnt.type) || + !cwd_matches_fs(variant->cwd_fs_magic)) { self->skip_test = true; SKIP(return, "this filesystem is not supported (setup)"); } |