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-rw-r--r--pkg/sentry/context/contexttest/contexttest.go32
-rw-r--r--pkg/sentry/fs/BUILD2
-rw-r--r--pkg/sentry/fs/ashmem/area.go8
-rw-r--r--pkg/sentry/fs/copy_up_test.go2
-rw-r--r--pkg/sentry/fs/dev/BUILD1
-rw-r--r--pkg/sentry/fs/dev/dev.go4
-rw-r--r--pkg/sentry/fs/file_overlay_test.go2
-rw-r--r--pkg/sentry/fs/inode_overlay_test.go2
-rw-r--r--pkg/sentry/fs/mounts_test.go2
-rw-r--r--pkg/sentry/fs/tmpfs/BUILD6
-rw-r--r--pkg/sentry/fs/tmpfs/file_test.go6
-rw-r--r--pkg/sentry/fs/tmpfs/fs.go4
-rw-r--r--pkg/sentry/fs/tmpfs/inode_file.go20
-rw-r--r--pkg/sentry/fs/tmpfs/tmpfs.go14
-rw-r--r--pkg/sentry/kernel/contexttest/BUILD17
-rw-r--r--pkg/sentry/kernel/contexttest/contexttest.go38
16 files changed, 116 insertions, 44 deletions
diff --git a/pkg/sentry/context/contexttest/contexttest.go b/pkg/sentry/context/contexttest/contexttest.go
index d2f084ed7..d5fd9f165 100644
--- a/pkg/sentry/context/contexttest/contexttest.go
+++ b/pkg/sentry/context/contexttest/contexttest.go
@@ -31,23 +31,30 @@ import (
// Context returns a Context that may be used in tests. Uses ptrace as the
// platform.Platform.
+//
+// Note that some filesystems may require a minimal kernel for testing, which
+// this test context does not provide. For such tests, see kernel/contexttest.
func Context(tb testing.TB) context.Context {
p, err := ptrace.New()
if err != nil {
tb.Fatal(err)
}
// Test usage of context.Background is fine.
- return &testContext{
- Context: context.Background(),
- l: limits.NewLimitSet(),
- platform: p,
+ return &TestContext{
+ Context: context.Background(),
+ l: limits.NewLimitSet(),
+ platform: p,
+ otherValues: make(map[interface{}]interface{}),
}
}
-type testContext struct {
+// TestContext represents a context with minimal functionality suitable for
+// running tests.
+type TestContext struct {
context.Context
- l *limits.LimitSet
- platform platform.Platform
+ l *limits.LimitSet
+ platform platform.Platform
+ otherValues map[interface{}]interface{}
}
// globalUniqueID tracks incremental unique identifiers for tests.
@@ -76,8 +83,14 @@ func (hostClock) Now() ktime.Time {
return ktime.FromNanoseconds(time.Now().UnixNano())
}
+// RegisterValue registers additional values with this test context. Useful for
+// providing values from external packages that contexttest can't depend on.
+func (t *TestContext) RegisterValue(key, value interface{}) {
+ t.otherValues[key] = value
+}
+
// Value implements context.Context.
-func (t *testContext) Value(key interface{}) interface{} {
+func (t *TestContext) Value(key interface{}) interface{} {
switch key {
case limits.CtxLimits:
return t.l
@@ -92,6 +105,9 @@ func (t *testContext) Value(key interface{}) interface{} {
case ktime.CtxRealtimeClock:
return hostClock{}
default:
+ if val, ok := t.otherValues[key]; ok {
+ return val
+ }
return t.Context.Value(key)
}
}
diff --git a/pkg/sentry/fs/BUILD b/pkg/sentry/fs/BUILD
index 548898aaa..0fe2b14bf 100644
--- a/pkg/sentry/fs/BUILD
+++ b/pkg/sentry/fs/BUILD
@@ -94,9 +94,9 @@ go_test(
deps = [
":fs",
"//pkg/sentry/context",
- "//pkg/sentry/context/contexttest",
"//pkg/sentry/fs/ramfs/test",
"//pkg/sentry/fs/tmpfs",
+ "//pkg/sentry/kernel/contexttest",
"//pkg/sentry/usermem",
"//pkg/syserror",
],
diff --git a/pkg/sentry/fs/ashmem/area.go b/pkg/sentry/fs/ashmem/area.go
index 5372875ac..d7dd2c084 100644
--- a/pkg/sentry/fs/ashmem/area.go
+++ b/pkg/sentry/fs/ashmem/area.go
@@ -23,8 +23,8 @@ import (
"gvisor.googlesource.com/gvisor/pkg/sentry/fs"
"gvisor.googlesource.com/gvisor/pkg/sentry/fs/fsutil"
"gvisor.googlesource.com/gvisor/pkg/sentry/fs/tmpfs"
+ "gvisor.googlesource.com/gvisor/pkg/sentry/kernel"
"gvisor.googlesource.com/gvisor/pkg/sentry/memmap"
- "gvisor.googlesource.com/gvisor/pkg/sentry/platform"
"gvisor.googlesource.com/gvisor/pkg/sentry/usage"
"gvisor.googlesource.com/gvisor/pkg/sentry/usermem"
"gvisor.googlesource.com/gvisor/pkg/syserror"
@@ -117,11 +117,11 @@ func (a *Area) ConfigureMMap(ctx context.Context, file *fs.File, opts *memmap.MM
opts.MaxPerms = opts.MaxPerms.Intersect(a.perms)
if a.tmpfsFile == nil {
- p := platform.FromContext(ctx)
- if p == nil {
+ k := kernel.KernelFromContext(ctx)
+ if k == nil {
return syserror.ENOMEM
}
- tmpfsInodeOps := tmpfs.NewInMemoryFile(ctx, usage.Tmpfs, fs.UnstableAttr{}, p)
+ tmpfsInodeOps := tmpfs.NewInMemoryFile(ctx, usage.Tmpfs, fs.UnstableAttr{}, k)
// This is not backed by a real filesystem, so we pass in nil.
tmpfsInode := fs.NewInode(tmpfsInodeOps, fs.NewNonCachingMountSource(nil, fs.MountSourceFlags{}), fs.StableAttr{})
dirent := fs.NewDirent(tmpfsInode, namePrefix+"/"+a.name)
diff --git a/pkg/sentry/fs/copy_up_test.go b/pkg/sentry/fs/copy_up_test.go
index fcba14ed4..2b2f4bb8f 100644
--- a/pkg/sentry/fs/copy_up_test.go
+++ b/pkg/sentry/fs/copy_up_test.go
@@ -22,9 +22,9 @@ import (
"sync"
"testing"
- "gvisor.googlesource.com/gvisor/pkg/sentry/context/contexttest"
"gvisor.googlesource.com/gvisor/pkg/sentry/fs"
_ "gvisor.googlesource.com/gvisor/pkg/sentry/fs/tmpfs"
+ "gvisor.googlesource.com/gvisor/pkg/sentry/kernel/contexttest"
"gvisor.googlesource.com/gvisor/pkg/sentry/usermem"
)
diff --git a/pkg/sentry/fs/dev/BUILD b/pkg/sentry/fs/dev/BUILD
index fc069bb5f..b17b5202c 100644
--- a/pkg/sentry/fs/dev/BUILD
+++ b/pkg/sentry/fs/dev/BUILD
@@ -25,6 +25,7 @@ go_library(
"//pkg/sentry/fs/fsutil",
"//pkg/sentry/fs/ramfs",
"//pkg/sentry/fs/tmpfs",
+ "//pkg/sentry/kernel",
"//pkg/sentry/memmap",
"//pkg/sentry/mm",
"//pkg/sentry/platform",
diff --git a/pkg/sentry/fs/dev/dev.go b/pkg/sentry/fs/dev/dev.go
index 05a5005ad..3e127bf04 100644
--- a/pkg/sentry/fs/dev/dev.go
+++ b/pkg/sentry/fs/dev/dev.go
@@ -22,7 +22,7 @@ import (
"gvisor.googlesource.com/gvisor/pkg/sentry/fs/binder"
"gvisor.googlesource.com/gvisor/pkg/sentry/fs/ramfs"
"gvisor.googlesource.com/gvisor/pkg/sentry/fs/tmpfs"
- "gvisor.googlesource.com/gvisor/pkg/sentry/platform"
+ "gvisor.googlesource.com/gvisor/pkg/sentry/kernel"
"gvisor.googlesource.com/gvisor/pkg/sentry/usermem"
)
@@ -86,7 +86,7 @@ func New(ctx context.Context, msrc *fs.MountSource, binderEnabled bool, ashmemEn
"random": newCharacterDevice(newRandomDevice(ctx, fs.RootOwner, 0444), msrc),
"urandom": newCharacterDevice(newRandomDevice(ctx, fs.RootOwner, 0444), msrc),
- "shm": tmpfs.NewDir(ctx, nil, fs.RootOwner, fs.FilePermsFromMode(0777), msrc, platform.FromContext(ctx)),
+ "shm": tmpfs.NewDir(ctx, nil, fs.RootOwner, fs.FilePermsFromMode(0777), msrc, kernel.KernelFromContext(ctx)),
// A devpts is typically mounted at /dev/pts to provide
// pseudoterminal support. Place an empty directory there for
diff --git a/pkg/sentry/fs/file_overlay_test.go b/pkg/sentry/fs/file_overlay_test.go
index 11e4f7203..f121cbdda 100644
--- a/pkg/sentry/fs/file_overlay_test.go
+++ b/pkg/sentry/fs/file_overlay_test.go
@@ -19,9 +19,9 @@ import (
"testing"
"gvisor.googlesource.com/gvisor/pkg/sentry/context"
- "gvisor.googlesource.com/gvisor/pkg/sentry/context/contexttest"
"gvisor.googlesource.com/gvisor/pkg/sentry/fs"
ramfstest "gvisor.googlesource.com/gvisor/pkg/sentry/fs/ramfs/test"
+ "gvisor.googlesource.com/gvisor/pkg/sentry/kernel/contexttest"
)
func TestReaddir(t *testing.T) {
diff --git a/pkg/sentry/fs/inode_overlay_test.go b/pkg/sentry/fs/inode_overlay_test.go
index acdb2b4f8..9e922d008 100644
--- a/pkg/sentry/fs/inode_overlay_test.go
+++ b/pkg/sentry/fs/inode_overlay_test.go
@@ -18,9 +18,9 @@ import (
"testing"
"gvisor.googlesource.com/gvisor/pkg/sentry/context"
- "gvisor.googlesource.com/gvisor/pkg/sentry/context/contexttest"
"gvisor.googlesource.com/gvisor/pkg/sentry/fs"
ramfstest "gvisor.googlesource.com/gvisor/pkg/sentry/fs/ramfs/test"
+ "gvisor.googlesource.com/gvisor/pkg/sentry/kernel/contexttest"
"gvisor.googlesource.com/gvisor/pkg/syserror"
)
diff --git a/pkg/sentry/fs/mounts_test.go b/pkg/sentry/fs/mounts_test.go
index 2f7a1710f..7d682d99b 100644
--- a/pkg/sentry/fs/mounts_test.go
+++ b/pkg/sentry/fs/mounts_test.go
@@ -18,9 +18,9 @@ import (
"testing"
"gvisor.googlesource.com/gvisor/pkg/sentry/context"
- "gvisor.googlesource.com/gvisor/pkg/sentry/context/contexttest"
"gvisor.googlesource.com/gvisor/pkg/sentry/fs"
ramfstest "gvisor.googlesource.com/gvisor/pkg/sentry/fs/ramfs/test"
+ "gvisor.googlesource.com/gvisor/pkg/sentry/kernel/contexttest"
)
// Creates a new MountNamespace with filesystem:
diff --git a/pkg/sentry/fs/tmpfs/BUILD b/pkg/sentry/fs/tmpfs/BUILD
index 277583113..9065cdd5d 100644
--- a/pkg/sentry/fs/tmpfs/BUILD
+++ b/pkg/sentry/fs/tmpfs/BUILD
@@ -20,10 +20,10 @@ go_library(
"//pkg/sentry/fs",
"//pkg/sentry/fs/fsutil",
"//pkg/sentry/fs/ramfs",
+ "//pkg/sentry/kernel",
"//pkg/sentry/kernel/auth",
"//pkg/sentry/kernel/pipe",
"//pkg/sentry/memmap",
- "//pkg/sentry/platform",
"//pkg/sentry/safemem",
"//pkg/sentry/socket/unix/transport",
"//pkg/sentry/usage",
@@ -39,9 +39,9 @@ go_test(
embed = [":tmpfs"],
deps = [
"//pkg/sentry/context",
- "//pkg/sentry/context/contexttest",
"//pkg/sentry/fs",
- "//pkg/sentry/platform",
+ "//pkg/sentry/kernel",
+ "//pkg/sentry/kernel/contexttest",
"//pkg/sentry/usage",
"//pkg/sentry/usermem",
],
diff --git a/pkg/sentry/fs/tmpfs/file_test.go b/pkg/sentry/fs/tmpfs/file_test.go
index b5830d3df..02da9af82 100644
--- a/pkg/sentry/fs/tmpfs/file_test.go
+++ b/pkg/sentry/fs/tmpfs/file_test.go
@@ -19,16 +19,16 @@ import (
"testing"
"gvisor.googlesource.com/gvisor/pkg/sentry/context"
- "gvisor.googlesource.com/gvisor/pkg/sentry/context/contexttest"
"gvisor.googlesource.com/gvisor/pkg/sentry/fs"
- "gvisor.googlesource.com/gvisor/pkg/sentry/platform"
+ "gvisor.googlesource.com/gvisor/pkg/sentry/kernel"
+ "gvisor.googlesource.com/gvisor/pkg/sentry/kernel/contexttest"
"gvisor.googlesource.com/gvisor/pkg/sentry/usage"
"gvisor.googlesource.com/gvisor/pkg/sentry/usermem"
)
func newFileInode(ctx context.Context) *fs.Inode {
m := fs.NewCachingMountSource(&Filesystem{}, fs.MountSourceFlags{})
- iops := NewInMemoryFile(ctx, usage.Tmpfs, fs.WithCurrentTime(ctx, fs.UnstableAttr{}), platform.FromContext(ctx))
+ iops := NewInMemoryFile(ctx, usage.Tmpfs, fs.WithCurrentTime(ctx, fs.UnstableAttr{}), kernel.KernelFromContext(ctx))
return fs.NewInode(iops, m, fs.StableAttr{
DeviceID: tmpfsDevice.DeviceID(),
InodeID: tmpfsDevice.NextIno(),
diff --git a/pkg/sentry/fs/tmpfs/fs.go b/pkg/sentry/fs/tmpfs/fs.go
index 3ac0c4dd4..88f85b85a 100644
--- a/pkg/sentry/fs/tmpfs/fs.go
+++ b/pkg/sentry/fs/tmpfs/fs.go
@@ -21,8 +21,8 @@ import (
"gvisor.googlesource.com/gvisor/pkg/abi/linux"
"gvisor.googlesource.com/gvisor/pkg/sentry/context"
"gvisor.googlesource.com/gvisor/pkg/sentry/fs"
+ "gvisor.googlesource.com/gvisor/pkg/sentry/kernel"
"gvisor.googlesource.com/gvisor/pkg/sentry/kernel/auth"
- "gvisor.googlesource.com/gvisor/pkg/sentry/platform"
)
const (
@@ -131,5 +131,5 @@ func (f *Filesystem) Mount(ctx context.Context, device string, flags fs.MountSou
msrc := fs.NewCachingMountSource(f, flags)
// Construct the tmpfs root.
- return NewDir(ctx, nil, owner, perms, msrc, platform.FromContext(ctx)), nil
+ return NewDir(ctx, nil, owner, perms, msrc, kernel.KernelFromContext(ctx)), nil
}
diff --git a/pkg/sentry/fs/tmpfs/inode_file.go b/pkg/sentry/fs/tmpfs/inode_file.go
index e0181c52c..ca2b4aabb 100644
--- a/pkg/sentry/fs/tmpfs/inode_file.go
+++ b/pkg/sentry/fs/tmpfs/inode_file.go
@@ -21,8 +21,8 @@ import (
"gvisor.googlesource.com/gvisor/pkg/sentry/context"
"gvisor.googlesource.com/gvisor/pkg/sentry/fs"
"gvisor.googlesource.com/gvisor/pkg/sentry/fs/fsutil"
+ "gvisor.googlesource.com/gvisor/pkg/sentry/kernel"
"gvisor.googlesource.com/gvisor/pkg/sentry/memmap"
- "gvisor.googlesource.com/gvisor/pkg/sentry/platform"
"gvisor.googlesource.com/gvisor/pkg/sentry/safemem"
"gvisor.googlesource.com/gvisor/pkg/sentry/usage"
"gvisor.googlesource.com/gvisor/pkg/sentry/usermem"
@@ -52,8 +52,8 @@ type fileInodeOperations struct {
fsutil.InodeNotSymlink `state:"nosave"`
fsutil.NoopWriteOut `state:"nosave"`
- // platform is used to allocate memory that stores the file's contents.
- platform platform.Platform
+ // kernel is used to allocate platform memory that stores the file's contents.
+ kernel *kernel.Kernel
// memUsage is the default memory usage that will be reported by this file.
memUsage usage.MemoryKind
@@ -84,12 +84,12 @@ type fileInodeOperations struct {
}
// NewInMemoryFile returns a new file backed by p.Memory().
-func NewInMemoryFile(ctx context.Context, usage usage.MemoryKind, uattr fs.UnstableAttr, p platform.Platform) fs.InodeOperations {
+func NewInMemoryFile(ctx context.Context, usage usage.MemoryKind, uattr fs.UnstableAttr, k *kernel.Kernel) fs.InodeOperations {
return &fileInodeOperations{
attr: fsutil.InMemoryAttributes{
Unstable: uattr,
},
- platform: p,
+ kernel: k,
memUsage: usage,
}
}
@@ -98,7 +98,7 @@ func NewInMemoryFile(ctx context.Context, usage usage.MemoryKind, uattr fs.Unsta
func (f *fileInodeOperations) Release(context.Context) {
f.dataMu.Lock()
defer f.dataMu.Unlock()
- f.data.DropAll(f.platform.Memory())
+ f.data.DropAll(f.kernel.Platform.Memory())
}
// Mappable implements fs.InodeOperations.Mappable.
@@ -212,7 +212,7 @@ func (f *fileInodeOperations) Truncate(ctx context.Context, inode *fs.Inode, siz
// and can remove them.
f.dataMu.Lock()
defer f.dataMu.Unlock()
- f.data.Truncate(uint64(size), f.platform.Memory())
+ f.data.Truncate(uint64(size), f.kernel.Platform.Memory())
return nil
}
@@ -310,7 +310,7 @@ func (rw *fileReadWriter) ReadToBlocks(dsts safemem.BlockSeq) (uint64, error) {
return 0, nil
}
- mem := rw.f.platform.Memory()
+ mem := rw.f.kernel.Platform.Memory()
var done uint64
seg, gap := rw.f.data.Find(uint64(rw.offset))
for rw.offset < end {
@@ -376,7 +376,7 @@ func (rw *fileReadWriter) WriteFromBlocks(srcs safemem.BlockSeq) (uint64, error)
}
}()
- mem := rw.f.platform.Memory()
+ mem := rw.f.kernel.Platform.Memory()
// Page-aligned mr for when we need to allocate memory. RoundUp can't
// overflow since end is an int64.
pgstartaddr := usermem.Addr(rw.offset).RoundDown()
@@ -465,7 +465,7 @@ func (f *fileInodeOperations) Translate(ctx context.Context, required, optional
optional.End = pgend
}
- mem := f.platform.Memory()
+ mem := f.kernel.Platform.Memory()
cerr := f.data.Fill(ctx, required, optional, mem, f.memUsage, func(_ context.Context, dsts safemem.BlockSeq, _ uint64) (uint64, error) {
// Newly-allocated pages are zeroed, so we don't need to do anything.
return dsts.NumBytes(), nil
diff --git a/pkg/sentry/fs/tmpfs/tmpfs.go b/pkg/sentry/fs/tmpfs/tmpfs.go
index 91b782540..40a8c4b1e 100644
--- a/pkg/sentry/fs/tmpfs/tmpfs.go
+++ b/pkg/sentry/fs/tmpfs/tmpfs.go
@@ -20,8 +20,8 @@ import (
"gvisor.googlesource.com/gvisor/pkg/sentry/context"
"gvisor.googlesource.com/gvisor/pkg/sentry/fs"
"gvisor.googlesource.com/gvisor/pkg/sentry/fs/ramfs"
+ "gvisor.googlesource.com/gvisor/pkg/sentry/kernel"
"gvisor.googlesource.com/gvisor/pkg/sentry/kernel/pipe"
- "gvisor.googlesource.com/gvisor/pkg/sentry/platform"
"gvisor.googlesource.com/gvisor/pkg/sentry/socket/unix/transport"
"gvisor.googlesource.com/gvisor/pkg/sentry/usage"
"gvisor.googlesource.com/gvisor/pkg/sentry/usermem"
@@ -54,13 +54,13 @@ func rename(ctx context.Context, oldParent *fs.Inode, oldName string, newParent
type Dir struct {
ramfs.Dir
- // platform is used to allocate storage for tmpfs Files.
- platform platform.Platform
+ // kernel is used to allocate platform memory as storage for tmpfs Files.
+ kernel *kernel.Kernel
}
// NewDir returns a new directory.
-func NewDir(ctx context.Context, contents map[string]*fs.Inode, owner fs.FileOwner, perms fs.FilePermissions, msrc *fs.MountSource, platform platform.Platform) *fs.Inode {
- d := &Dir{platform: platform}
+func NewDir(ctx context.Context, contents map[string]*fs.Inode, owner fs.FileOwner, perms fs.FilePermissions, msrc *fs.MountSource, kernel *kernel.Kernel) *fs.Inode {
+ d := &Dir{kernel: kernel}
d.InitDir(ctx, contents, owner, perms)
// Manually set the CreateOps.
@@ -84,7 +84,7 @@ func (d *Dir) afterLoad() {
func (d *Dir) newCreateOps() *ramfs.CreateOps {
return &ramfs.CreateOps{
NewDir: func(ctx context.Context, dir *fs.Inode, perms fs.FilePermissions) (*fs.Inode, error) {
- return NewDir(ctx, nil, fs.FileOwnerFromContext(ctx), perms, dir.MountSource, d.platform), nil
+ return NewDir(ctx, nil, fs.FileOwnerFromContext(ctx), perms, dir.MountSource, d.kernel), nil
},
NewFile: func(ctx context.Context, dir *fs.Inode, perms fs.FilePermissions) (*fs.Inode, error) {
uattr := fs.WithCurrentTime(ctx, fs.UnstableAttr{
@@ -93,7 +93,7 @@ func (d *Dir) newCreateOps() *ramfs.CreateOps {
// Always start unlinked.
Links: 0,
})
- iops := NewInMemoryFile(ctx, usage.Tmpfs, uattr, d.platform)
+ iops := NewInMemoryFile(ctx, usage.Tmpfs, uattr, d.kernel)
return fs.NewInode(iops, dir.MountSource, fs.StableAttr{
DeviceID: tmpfsDevice.DeviceID(),
InodeID: tmpfsDevice.NextIno(),
diff --git a/pkg/sentry/kernel/contexttest/BUILD b/pkg/sentry/kernel/contexttest/BUILD
new file mode 100644
index 000000000..391986291
--- /dev/null
+++ b/pkg/sentry/kernel/contexttest/BUILD
@@ -0,0 +1,17 @@
+package(licenses = ["notice"]) # Apache 2.0
+
+load("//tools/go_stateify:defs.bzl", "go_library")
+
+go_library(
+ name = "contexttest",
+ testonly = 1,
+ srcs = ["contexttest.go"],
+ importpath = "gvisor.googlesource.com/gvisor/pkg/sentry/kernel/contexttest",
+ visibility = ["//pkg/sentry:internal"],
+ deps = [
+ "//pkg/sentry/context",
+ "//pkg/sentry/context/contexttest",
+ "//pkg/sentry/kernel",
+ "//pkg/sentry/platform",
+ ],
+)
diff --git a/pkg/sentry/kernel/contexttest/contexttest.go b/pkg/sentry/kernel/contexttest/contexttest.go
new file mode 100644
index 000000000..9eb18e7e8
--- /dev/null
+++ b/pkg/sentry/kernel/contexttest/contexttest.go
@@ -0,0 +1,38 @@
+// Copyright 2018 Google LLC
+//
+// 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 contexttest provides a test context.Context which includes
+// a dummy kernel pointing to a valid platform.
+package contexttest
+
+import (
+ "testing"
+
+ "gvisor.googlesource.com/gvisor/pkg/sentry/context"
+ "gvisor.googlesource.com/gvisor/pkg/sentry/context/contexttest"
+ "gvisor.googlesource.com/gvisor/pkg/sentry/kernel"
+ "gvisor.googlesource.com/gvisor/pkg/sentry/platform"
+)
+
+// Context returns a Context that may be used in tests. Uses ptrace as the
+// platform.Platform, and provides a stub kernel that only serves to point to
+// the platform.
+func Context(tb testing.TB) context.Context {
+ ctx := contexttest.Context(tb)
+ k := &kernel.Kernel{
+ Platform: platform.FromContext(ctx),
+ }
+ ctx.(*contexttest.TestContext).RegisterValue(kernel.CtxKernel, k)
+ return ctx
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-01 21:27:07 +0000