package fusefrontend import ( "strings" "syscall" "testing" "golang.org/x/sys/unix" "github.com/hanwen/go-fuse/v2/fuse" "github.com/rfjakob/gocryptfs/internal/syscallcompat" "github.com/rfjakob/gocryptfs/tests/test_helpers" ) func TestPrepareAtSyscall(t *testing.T) { cipherdir := test_helpers.InitFS(t) t.Logf("cipherdir = %q", cipherdir) args := Args{ Cipherdir: cipherdir, } rn := newTestFS(args) out := &fuse.EntryOut{} child, errno := rn.Mkdir(nil, "dir1", 0700, out) if errno != 0 { t.Fatal(errno) } rn.AddChild("dir1", child, false) dir1 := toNode(child.Operations()) _, errno = dir1.Mkdir(nil, "dir2", 0700, out) if errno != 0 { t.Fatal(errno) } dirfd, cName, errno := rn.prepareAtSyscallMyself() if errno != 0 { t.Fatal(errno) } if cName != "." { t.Fatal("cName should be .") } syscall.Close(dirfd) // Again, but populate the cache for "" by looking up a non-existing file rn.Lookup(nil, "xyz1234", &fuse.EntryOut{}) dirfd, cName, errno = rn.prepareAtSyscallMyself() if errno != 0 { t.Fatal(errno) } if cName != "." { t.Fatal("cName should be .") } err := syscallcompat.Faccessat(dirfd, cName, unix.R_OK) if err != nil { t.Error(err) } err = syscallcompat.Faccessat(dirfd, ".", unix.R_OK) if err != nil { t.Error(err) } syscall.Close(dirfd) dirfd, cName, errno = rn.prepareAtSyscall("dir1") if errno != 0 { t.Fatal(errno) } if cName == "" { t.Fatal("cName should not be empty") } err = syscallcompat.Faccessat(dirfd, cName, unix.R_OK) if err != nil { t.Error(err) } syscall.Close(dirfd) dirfd, cName, errno = dir1.prepareAtSyscall("dir2") if errno != 0 { t.Fatal(errno) } if cName == "" { t.Fatal("cName should not be empty") } err = syscallcompat.Faccessat(dirfd, cName, unix.R_OK) if err != nil { t.Errorf("Faccessat(%d, %q): %v", dirfd, cName, err) } syscall.Close(dirfd) n255 := strings.Repeat("n", 255) dir1.Mkdir(nil, n255, 0700, out) dirfd, cName, errno = dir1.prepareAtSyscall(n255) if errno != 0 { t.Fatal(errno) } if cName == "" { t.Fatal("cName should not be empty") } if len(cName) >= 255 { t.Fatalf("cName is too long: %q", cName) } err = syscallcompat.Faccessat(dirfd, cName, unix.R_OK) if err != nil { t.Errorf("Faccessat(%d, %q): %v", dirfd, cName, err) } syscall.Close(dirfd) } func TestPrepareAtSyscallPlaintextnames(t *testing.T) { cipherdir := test_helpers.InitFS(t, "-plaintextnames") args := Args{ Cipherdir: cipherdir, PlaintextNames: true, } rn := newTestFS(args) out := &fuse.EntryOut{} child, errno := rn.Mkdir(nil, "dir1", 0700, out) if errno != 0 { t.Fatal(errno) } rn.AddChild("dir1", child, false) dir1 := toNode(child.Operations()) _, errno = dir1.Mkdir(nil, "dir2", 0700, out) if errno != 0 { t.Fatal(errno) } dirfd, cName, errno := rn.prepareAtSyscallMyself() if errno != 0 { t.Fatal(errno) } if cName != "." { t.Fatal("cName should be .") } err := syscallcompat.Faccessat(dirfd, cName, unix.R_OK) if err != nil { t.Error(err) } err = syscallcompat.Faccessat(dirfd, ".", unix.R_OK) if err != nil { t.Error(err) } syscall.Close(dirfd) dirfd, cName, errno = rn.prepareAtSyscall("dir1") if errno != 0 { t.Fatal(errno) } if cName != "dir1" { t.Fatalf("wrong cName: %q", cName) } err = syscallcompat.Faccessat(dirfd, cName, unix.R_OK) if err != nil { t.Error(err) } syscall.Close(dirfd) dirfd, cName, errno = dir1.prepareAtSyscall("dir2") if errno != 0 { t.Fatal(errno) } if cName != "dir2" { t.Fatalf("wrong cName: %q", cName) } err = syscallcompat.Faccessat(dirfd, cName, unix.R_OK) if err != nil { t.Error(err) } syscall.Close(dirfd) }