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-rw-r--r--pkg/sentry/fs/dev/dev.go20
-rwxr-xr-xpkg/sentry/fs/dev/dev_state_autogen.go22
-rw-r--r--pkg/sentry/fs/dev/tty.go67
-rwxr-xr-xpkg/sentry/kernel/seqatomic_taskgoroutineschedinfo_unsafe.go4
-rwxr-xr-xpkg/sentry/platform/ring0/defs_impl.go7
-rwxr-xr-xpkg/sentry/time/seqatomic_parameters_unsafe.go4
6 files changed, 111 insertions, 13 deletions
diff --git a/pkg/sentry/fs/dev/dev.go b/pkg/sentry/fs/dev/dev.go
index d4bbd9807..f739c476c 100644
--- a/pkg/sentry/fs/dev/dev.go
+++ b/pkg/sentry/fs/dev/dev.go
@@ -38,12 +38,20 @@ const (
urandomDevMinor uint32 = 9
)
-func newCharacterDevice(ctx context.Context, iops fs.InodeOperations, msrc *fs.MountSource) *fs.Inode {
+// TTY major device number comes from include/uapi/linux/major.h.
+const (
+ ttyDevMinor = 0
+ ttyDevMajor = 5
+)
+
+func newCharacterDevice(ctx context.Context, iops fs.InodeOperations, msrc *fs.MountSource, major uint16, minor uint32) *fs.Inode {
return fs.NewInode(ctx, iops, msrc, fs.StableAttr{
- DeviceID: devDevice.DeviceID(),
- InodeID: devDevice.NextIno(),
- BlockSize: usermem.PageSize,
- Type: fs.CharacterDevice,
+ DeviceID: devDevice.DeviceID(),
+ InodeID: devDevice.NextIno(),
+ BlockSize: usermem.PageSize,
+ Type: fs.CharacterDevice,
+ DeviceFileMajor: major,
+ DeviceFileMinor: minor,
})
}
@@ -114,6 +122,8 @@ func New(ctx context.Context, msrc *fs.MountSource) *fs.Inode {
// If no devpts is mounted, this will simply be a dangling
// symlink, which is fine.
"ptmx": newSymlink(ctx, "pts/ptmx", msrc),
+
+ "tty": newCharacterDevice(ctx, newTTYDevice(ctx, fs.RootOwner, 0666), msrc, ttyDevMajor, ttyDevMinor),
}
iops := ramfs.NewDir(ctx, contents, fs.RootOwner, fs.FilePermsFromMode(0555))
diff --git a/pkg/sentry/fs/dev/dev_state_autogen.go b/pkg/sentry/fs/dev/dev_state_autogen.go
index 0afbc170f..a997f3ecf 100755
--- a/pkg/sentry/fs/dev/dev_state_autogen.go
+++ b/pkg/sentry/fs/dev/dev_state_autogen.go
@@ -95,6 +95,26 @@ func (x *randomFileOperations) afterLoad() {}
func (x *randomFileOperations) load(m state.Map) {
}
+func (x *ttyInodeOperations) beforeSave() {}
+func (x *ttyInodeOperations) save(m state.Map) {
+ x.beforeSave()
+ m.Save("InodeSimpleAttributes", &x.InodeSimpleAttributes)
+}
+
+func (x *ttyInodeOperations) afterLoad() {}
+func (x *ttyInodeOperations) load(m state.Map) {
+ m.Load("InodeSimpleAttributes", &x.InodeSimpleAttributes)
+}
+
+func (x *ttyFileOperations) beforeSave() {}
+func (x *ttyFileOperations) save(m state.Map) {
+ x.beforeSave()
+}
+
+func (x *ttyFileOperations) afterLoad() {}
+func (x *ttyFileOperations) load(m state.Map) {
+}
+
func init() {
state.Register("dev.filesystem", (*filesystem)(nil), state.Fns{Save: (*filesystem).save, Load: (*filesystem).load})
state.Register("dev.fullDevice", (*fullDevice)(nil), state.Fns{Save: (*fullDevice).save, Load: (*fullDevice).load})
@@ -105,4 +125,6 @@ func init() {
state.Register("dev.zeroFileOperations", (*zeroFileOperations)(nil), state.Fns{Save: (*zeroFileOperations).save, Load: (*zeroFileOperations).load})
state.Register("dev.randomDevice", (*randomDevice)(nil), state.Fns{Save: (*randomDevice).save, Load: (*randomDevice).load})
state.Register("dev.randomFileOperations", (*randomFileOperations)(nil), state.Fns{Save: (*randomFileOperations).save, Load: (*randomFileOperations).load})
+ state.Register("dev.ttyInodeOperations", (*ttyInodeOperations)(nil), state.Fns{Save: (*ttyInodeOperations).save, Load: (*ttyInodeOperations).load})
+ state.Register("dev.ttyFileOperations", (*ttyFileOperations)(nil), state.Fns{Save: (*ttyFileOperations).save, Load: (*ttyFileOperations).load})
}
diff --git a/pkg/sentry/fs/dev/tty.go b/pkg/sentry/fs/dev/tty.go
new file mode 100644
index 000000000..87d80e292
--- /dev/null
+++ b/pkg/sentry/fs/dev/tty.go
@@ -0,0 +1,67 @@
+// Copyright 2019 The gVisor Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package dev
+
+import (
+ "gvisor.dev/gvisor/pkg/abi/linux"
+ "gvisor.dev/gvisor/pkg/sentry/context"
+ "gvisor.dev/gvisor/pkg/sentry/fs"
+ "gvisor.dev/gvisor/pkg/sentry/fs/fsutil"
+ "gvisor.dev/gvisor/pkg/waiter"
+)
+
+// +stateify savable
+type ttyInodeOperations struct {
+ fsutil.InodeGenericChecker `state:"nosave"`
+ fsutil.InodeNoExtendedAttributes `state:"nosave"`
+ fsutil.InodeNoopAllocate `state:"nosave"`
+ fsutil.InodeNoopRelease `state:"nosave"`
+ fsutil.InodeNoopTruncate `state:"nosave"`
+ fsutil.InodeNoopWriteOut `state:"nosave"`
+ fsutil.InodeNotDirectory `state:"nosave"`
+ fsutil.InodeNotMappable `state:"nosave"`
+ fsutil.InodeNotOpenable `state:"nosave"`
+ fsutil.InodeNotSocket `state:"nosave"`
+ fsutil.InodeNotSymlink `state:"nosave"`
+ fsutil.InodeVirtual `state:"nosave"`
+
+ fsutil.InodeSimpleAttributes
+}
+
+var _ fs.InodeOperations = (*ttyInodeOperations)(nil)
+
+func newTTYDevice(ctx context.Context, owner fs.FileOwner, mode linux.FileMode) *ttyInodeOperations {
+ return &ttyInodeOperations{
+ InodeSimpleAttributes: fsutil.NewInodeSimpleAttributes(ctx, owner, fs.FilePermsFromMode(mode), linux.TMPFS_MAGIC),
+ }
+}
+
+// +stateify savable
+type ttyFileOperations struct {
+ fsutil.FileNoSeek `state:"nosave"`
+ fsutil.FileNoIoctl `state:"nosave"`
+ fsutil.FileNoMMap `state:"nosave"`
+ fsutil.FileNoSplice `state:"nosave"`
+ fsutil.FileNoopFlush `state:"nosave"`
+ fsutil.FileNoopFsync `state:"nosave"`
+ fsutil.FileNoopRelease `state:"nosave"`
+ fsutil.FileNoopWrite `state:"nosave"`
+ fsutil.FileNoopRead `state:"nosave"`
+ fsutil.FileNotDirReaddir `state:"nosave"`
+ fsutil.FileUseInodeUnstableAttr `state:"nosave"`
+ waiter.AlwaysReady `state:"nosave"`
+}
+
+var _ fs.FileOperations = (*ttyFileOperations)(nil)
diff --git a/pkg/sentry/kernel/seqatomic_taskgoroutineschedinfo_unsafe.go b/pkg/sentry/kernel/seqatomic_taskgoroutineschedinfo_unsafe.go
index 895abb129..c284a1b11 100755
--- a/pkg/sentry/kernel/seqatomic_taskgoroutineschedinfo_unsafe.go
+++ b/pkg/sentry/kernel/seqatomic_taskgoroutineschedinfo_unsafe.go
@@ -1,12 +1,12 @@
package kernel
import (
+ "reflect"
+ "strings"
"unsafe"
"fmt"
"gvisor.dev/gvisor/third_party/gvsync"
- "reflect"
- "strings"
)
// SeqAtomicLoad returns a copy of *ptr, ensuring that the read does not race
diff --git a/pkg/sentry/platform/ring0/defs_impl.go b/pkg/sentry/platform/ring0/defs_impl.go
index a36a17e37..5032ac56e 100755
--- a/pkg/sentry/platform/ring0/defs_impl.go
+++ b/pkg/sentry/platform/ring0/defs_impl.go
@@ -1,14 +1,13 @@
package ring0
import (
- "gvisor.dev/gvisor/pkg/cpuid"
- "reflect"
- "syscall"
-
"fmt"
+ "gvisor.dev/gvisor/pkg/cpuid"
"gvisor.dev/gvisor/pkg/sentry/platform/ring0/pagetables"
"gvisor.dev/gvisor/pkg/sentry/usermem"
"io"
+ "reflect"
+ "syscall"
)
var (
diff --git a/pkg/sentry/time/seqatomic_parameters_unsafe.go b/pkg/sentry/time/seqatomic_parameters_unsafe.go
index f6560d0bb..1ec221edd 100755
--- a/pkg/sentry/time/seqatomic_parameters_unsafe.go
+++ b/pkg/sentry/time/seqatomic_parameters_unsafe.go
@@ -1,12 +1,12 @@
package time
import (
+ "reflect"
+ "strings"
"unsafe"
"fmt"
"gvisor.dev/gvisor/third_party/gvsync"
- "reflect"
- "strings"
)
// SeqAtomicLoad returns a copy of *ptr, ensuring that the read does not race
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-08 04:29:28 +0000