diff options
| -rw-r--r-- | pkg/sentry/fs/ext/ext_test.go | 176 |
1 files changed, 176 insertions, 0 deletions
diff --git a/pkg/sentry/fs/ext/ext_test.go b/pkg/sentry/fs/ext/ext_test.go index 0b8311544..81618bc0e 100644 --- a/pkg/sentry/fs/ext/ext_test.go +++ b/pkg/sentry/fs/ext/ext_test.go @@ -23,6 +23,7 @@ import ( "testing" "github.com/google/go-cmp/cmp" + "github.com/google/go-cmp/cmp/cmpopts" "gvisor.dev/gvisor/pkg/abi/linux" "gvisor.dev/gvisor/pkg/sentry/context" "gvisor.dev/gvisor/pkg/sentry/context/contexttest" @@ -82,6 +83,181 @@ func setUp(t *testing.T, imagePath string) (context.Context, *vfs.VirtualFilesys return ctx, vfsObj, &root, tearDown, nil } +// TestStatAt tests filesystem.StatAt functionality. +func TestStatAt(t *testing.T) { + type statAtTest struct { + name string + image string + path string + want linux.Statx + } + + tests := []statAtTest{ + { + name: "ext4 statx small file", + image: ext4ImagePath, + path: "/file.txt", + want: linux.Statx{ + Blksize: 0x400, + Nlink: 1, + UID: 0, + GID: 0, + Mode: 0644 | linux.ModeRegular, + Size: 13, + }, + }, + { + name: "ext3 statx small file", + image: ext3ImagePath, + path: "/file.txt", + want: linux.Statx{ + Blksize: 0x400, + Nlink: 1, + UID: 0, + GID: 0, + Mode: 0644 | linux.ModeRegular, + Size: 13, + }, + }, + { + name: "ext2 statx small file", + image: ext2ImagePath, + path: "/file.txt", + want: linux.Statx{ + Blksize: 0x400, + Nlink: 1, + UID: 0, + GID: 0, + Mode: 0644 | linux.ModeRegular, + Size: 13, + }, + }, + { + name: "ext4 statx big file", + image: ext4ImagePath, + path: "/bigfile.txt", + want: linux.Statx{ + Blksize: 0x400, + Nlink: 1, + UID: 0, + GID: 0, + Mode: 0644 | linux.ModeRegular, + Size: 13042, + }, + }, + { + name: "ext3 statx big file", + image: ext3ImagePath, + path: "/bigfile.txt", + want: linux.Statx{ + Blksize: 0x400, + Nlink: 1, + UID: 0, + GID: 0, + Mode: 0644 | linux.ModeRegular, + Size: 13042, + }, + }, + { + name: "ext2 statx big file", + image: ext2ImagePath, + path: "/bigfile.txt", + want: linux.Statx{ + Blksize: 0x400, + Nlink: 1, + UID: 0, + GID: 0, + Mode: 0644 | linux.ModeRegular, + Size: 13042, + }, + }, + { + name: "ext4 statx symlink file", + image: ext4ImagePath, + path: "/symlink.txt", + want: linux.Statx{ + Blksize: 0x400, + Nlink: 1, + UID: 0, + GID: 0, + Mode: 0777 | linux.ModeSymlink, + Size: 8, + }, + }, + { + name: "ext3 statx symlink file", + image: ext3ImagePath, + path: "/symlink.txt", + want: linux.Statx{ + Blksize: 0x400, + Nlink: 1, + UID: 0, + GID: 0, + Mode: 0777 | linux.ModeSymlink, + Size: 8, + }, + }, + { + name: "ext2 statx symlink file", + image: ext2ImagePath, + path: "/symlink.txt", + want: linux.Statx{ + Blksize: 0x400, + Nlink: 1, + UID: 0, + GID: 0, + Mode: 0777 | linux.ModeSymlink, + Size: 8, + }, + }, + } + + // Ignore the fields that are not supported by filesystem.StatAt yet and + // those which are likely to change as the image does. + ignoredFields := map[string]bool{ + "Attributes": true, + "AttributesMask": true, + "Atime": true, + "Blocks": true, + "Btime": true, + "Ctime": true, + "DevMajor": true, + "DevMinor": true, + "Ino": true, + "Mask": true, + "Mtime": true, + "RdevMajor": true, + "RdevMinor": true, + } + + for _, test := range tests { + t.Run(test.name, func(t *testing.T) { + ctx, vfsfs, root, tearDown, err := setUp(t, test.image) + if err != nil { + t.Fatalf("setUp failed: %v", err) + } + defer tearDown() + + got, err := vfsfs.StatAt(ctx, + auth.CredentialsFromContext(ctx), + &vfs.PathOperation{Root: *root, Start: *root, Pathname: test.path}, + &vfs.StatOptions{}, + ) + if err != nil { + t.Fatalf("vfsfs.StatAt failed for file %s in image %s: %v", test.path, test.image, err) + } + + cmpIgnoreFields := cmp.FilterPath(func(p cmp.Path) bool { + _, ok := ignoredFields[p.String()] + return ok + }, cmp.Ignore()) + if diff := cmp.Diff(got, test.want, cmpIgnoreFields, cmpopts.IgnoreUnexported(linux.Statx{})); diff != "" { + t.Errorf("stat mismatch (-want +got):\n%s", diff) + } + }) + } +} + // TestRead tests the read functionality for vfs file descriptions. func TestRead(t *testing.T) { type readTest struct { |