diff options
Diffstat (limited to 'test/test_mount.rs')
-rw-r--r-- | test/test_mount.rs | 167 |
1 files changed, 101 insertions, 66 deletions
diff --git a/test/test_mount.rs b/test/test_mount.rs index 1ddfcfe9..febcadfb 100644 --- a/test/test_mount.rs +++ b/test/test_mount.rs @@ -27,16 +27,18 @@ exit 23"; const EXPECTED_STATUS: i32 = 23; const NONE: Option<&'static [u8]> = None; - #[allow(clippy::bind_instead_of_map)] // False positive + #[allow(clippy::bind_instead_of_map)] // False positive pub fn test_mount_tmpfs_without_flags_allows_rwx() { let tempdir = tempfile::tempdir().unwrap(); - mount(NONE, - tempdir.path(), - Some(b"tmpfs".as_ref()), - MsFlags::empty(), - NONE) - .unwrap_or_else(|e| panic!("mount failed: {}", e)); + mount( + NONE, + tempdir.path(), + Some(b"tmpfs".as_ref()), + MsFlags::empty(), + NONE, + ) + .unwrap_or_else(|e| panic!("mount failed: {}", e)); let test_path = tempdir.path().join("test"); @@ -46,8 +48,10 @@ exit 23"; .write(true) .mode((Mode::S_IRWXU | Mode::S_IRWXG | Mode::S_IRWXO).bits()) .open(&test_path) - .or_else(|e| - if Errno::from_i32(e.raw_os_error().unwrap()) == Errno::EOVERFLOW { + .or_else(|e| { + if Errno::from_i32(e.raw_os_error().unwrap()) + == Errno::EOVERFLOW + { // Skip tests on certain Linux kernels which have a bug // regarding tmpfs in namespaces. // Ubuntu 14.04 and 16.04 are known to be affected; 16.10 is @@ -56,13 +60,16 @@ exit 23"; // https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1659087 let stderr = io::stderr(); let mut handle = stderr.lock(); - writeln!(handle, "Buggy Linux kernel detected. Skipping test.") + writeln!( + handle, + "Buggy Linux kernel detected. Skipping test." + ) .unwrap(); process::exit(0); - } else { - panic!("open failed: {}", e); - } - ) + } else { + panic!("open failed: {}", e); + } + }) .and_then(|mut f| f.write(SCRIPT_CONTENTS)) .unwrap_or_else(|e| panic!("write failed: {}", e)); @@ -74,42 +81,55 @@ exit 23"; assert_eq!(buf, SCRIPT_CONTENTS); // Verify execute. - assert_eq!(EXPECTED_STATUS, - Command::new(&test_path) - .status() - .unwrap_or_else(|e| panic!("exec failed: {}", e)) - .code() - .unwrap_or_else(|| panic!("child killed by signal"))); - - umount(tempdir.path()).unwrap_or_else(|e| panic!("umount failed: {}", e)); + assert_eq!( + EXPECTED_STATUS, + Command::new(&test_path) + .status() + .unwrap_or_else(|e| panic!("exec failed: {}", e)) + .code() + .unwrap_or_else(|| panic!("child killed by signal")) + ); + + umount(tempdir.path()) + .unwrap_or_else(|e| panic!("umount failed: {}", e)); } pub fn test_mount_rdonly_disallows_write() { let tempdir = tempfile::tempdir().unwrap(); - mount(NONE, - tempdir.path(), - Some(b"tmpfs".as_ref()), - MsFlags::MS_RDONLY, - NONE) - .unwrap_or_else(|e| panic!("mount failed: {}", e)); + mount( + NONE, + tempdir.path(), + Some(b"tmpfs".as_ref()), + MsFlags::MS_RDONLY, + NONE, + ) + .unwrap_or_else(|e| panic!("mount failed: {}", e)); // EROFS: Read-only file system - assert_eq!(EROFS as i32, - File::create(tempdir.path().join("test")).unwrap_err().raw_os_error().unwrap()); - - umount(tempdir.path()).unwrap_or_else(|e| panic!("umount failed: {}", e)); + assert_eq!( + EROFS as i32, + File::create(tempdir.path().join("test")) + .unwrap_err() + .raw_os_error() + .unwrap() + ); + + umount(tempdir.path()) + .unwrap_or_else(|e| panic!("umount failed: {}", e)); } pub fn test_mount_noexec_disallows_exec() { let tempdir = tempfile::tempdir().unwrap(); - mount(NONE, - tempdir.path(), - Some(b"tmpfs".as_ref()), - MsFlags::MS_NOEXEC, - NONE) - .unwrap_or_else(|e| panic!("mount failed: {}", e)); + mount( + NONE, + tempdir.path(), + Some(b"tmpfs".as_ref()), + MsFlags::MS_NOEXEC, + NONE, + ) + .unwrap_or_else(|e| panic!("mount failed: {}", e)); let test_path = tempdir.path().join("test"); @@ -122,21 +142,30 @@ exit 23"; .unwrap_or_else(|e| panic!("write failed: {}", e)); // Verify that we cannot execute despite a+x permissions being set. - let mode = stat::Mode::from_bits_truncate(fs::metadata(&test_path) - .map(|md| md.permissions().mode()) - .unwrap_or_else(|e| { - panic!("metadata failed: {}", e) - })); - - assert!(mode.contains(Mode::S_IXUSR | Mode::S_IXGRP | Mode::S_IXOTH), - "{:?} did not have execute permissions", - &test_path); + let mode = stat::Mode::from_bits_truncate( + fs::metadata(&test_path) + .map(|md| md.permissions().mode()) + .unwrap_or_else(|e| panic!("metadata failed: {}", e)), + ); + + assert!( + mode.contains(Mode::S_IXUSR | Mode::S_IXGRP | Mode::S_IXOTH), + "{:?} did not have execute permissions", + &test_path + ); // EACCES: Permission denied - assert_eq!(EACCES as i32, - Command::new(&test_path).status().unwrap_err().raw_os_error().unwrap()); - - umount(tempdir.path()).unwrap_or_else(|e| panic!("umount failed: {}", e)); + assert_eq!( + EACCES as i32, + Command::new(&test_path) + .status() + .unwrap_err() + .raw_os_error() + .unwrap() + ); + + umount(tempdir.path()) + .unwrap_or_else(|e| panic!("umount failed: {}", e)); } pub fn test_mount_bind() { @@ -146,12 +175,14 @@ exit 23"; { let mount_point = tempfile::tempdir().unwrap(); - mount(Some(tempdir.path()), - mount_point.path(), - NONE, - MsFlags::MS_BIND, - NONE) - .unwrap_or_else(|e| panic!("mount failed: {}", e)); + mount( + Some(tempdir.path()), + mount_point.path(), + NONE, + MsFlags::MS_BIND, + NONE, + ) + .unwrap_or_else(|e| panic!("mount failed: {}", e)); fs::OpenOptions::new() .create(true) @@ -161,7 +192,8 @@ exit 23"; .and_then(|mut f| f.write(SCRIPT_CONTENTS)) .unwrap_or_else(|e| panic!("write failed: {}", e)); - umount(mount_point.path()).unwrap_or_else(|e| panic!("umount failed: {}", e)); + umount(mount_point.path()) + .unwrap_or_else(|e| panic!("umount failed: {}", e)); } // Verify the file written in the mount shows up in source directory, even @@ -199,7 +231,6 @@ exit 23"; } } - // Test runner /// Mimic normal test output (hackishly). @@ -220,16 +251,20 @@ macro_rules! run_tests { #[cfg(target_os = "linux")] fn main() { - use test_mount::{setup_namespaces, test_mount_tmpfs_without_flags_allows_rwx, - test_mount_rdonly_disallows_write, test_mount_noexec_disallows_exec, - test_mount_bind}; + use test_mount::{ + setup_namespaces, test_mount_bind, test_mount_noexec_disallows_exec, + test_mount_rdonly_disallows_write, + test_mount_tmpfs_without_flags_allows_rwx, + }; skip_if_cirrus!("Fails for an unknown reason Cirrus CI. Bug #1351"); setup_namespaces(); - run_tests!(test_mount_tmpfs_without_flags_allows_rwx, - test_mount_rdonly_disallows_write, - test_mount_noexec_disallows_exec, - test_mount_bind); + run_tests!( + test_mount_tmpfs_without_flags_allows_rwx, + test_mount_rdonly_disallows_write, + test_mount_noexec_disallows_exec, + test_mount_bind + ); } #[cfg(not(target_os = "linux"))] |