diff options
| author | Jamie Liu <jamieliu@google.com> | 2020-10-23 17:46:43 -0700 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2020-10-23 17:48:33 -0700 |
| commit | 9f87400f087df0492cf181c97f431b6d5ce3a987 (patch) | |
| tree | e52617b64a20a84db67f1bfe34907677571b92c7 /pkg/sentry/state | |
| parent | 634e14a09408e50ef70442c0114a8b1dd12c8d03 (diff) | |
Support VFS2 save/restore.
Inode number consistency checks are now skipped in save/restore tests for
reasons described in greatest detail in StatTest.StateDoesntChangeAfterRename.
They pass in VFS1 due to the bug described in new test case
SimpleStatTest.DifferentFilesHaveDifferentDeviceInodeNumberPairs.
Fixes #1663
PiperOrigin-RevId: 338776148
Diffstat (limited to 'pkg/sentry/state')
| -rw-r--r-- | pkg/sentry/state/BUILD | 2 | ||||
| -rw-r--r-- | pkg/sentry/state/state.go | 10 |
2 files changed, 8 insertions, 4 deletions
diff --git a/pkg/sentry/state/BUILD b/pkg/sentry/state/BUILD index 0ea4aab8b..563d60578 100644 --- a/pkg/sentry/state/BUILD +++ b/pkg/sentry/state/BUILD @@ -12,10 +12,12 @@ go_library( visibility = ["//pkg/sentry:internal"], deps = [ "//pkg/abi/linux", + "//pkg/context", "//pkg/log", "//pkg/sentry/inet", "//pkg/sentry/kernel", "//pkg/sentry/time", + "//pkg/sentry/vfs", "//pkg/sentry/watchdog", "//pkg/state/statefile", "//pkg/syserror", diff --git a/pkg/sentry/state/state.go b/pkg/sentry/state/state.go index 245d2c5cf..167754537 100644 --- a/pkg/sentry/state/state.go +++ b/pkg/sentry/state/state.go @@ -19,10 +19,12 @@ import ( "fmt" "io" + "gvisor.dev/gvisor/pkg/context" "gvisor.dev/gvisor/pkg/log" "gvisor.dev/gvisor/pkg/sentry/inet" "gvisor.dev/gvisor/pkg/sentry/kernel" "gvisor.dev/gvisor/pkg/sentry/time" + "gvisor.dev/gvisor/pkg/sentry/vfs" "gvisor.dev/gvisor/pkg/sentry/watchdog" "gvisor.dev/gvisor/pkg/state/statefile" "gvisor.dev/gvisor/pkg/syserror" @@ -57,7 +59,7 @@ type SaveOpts struct { } // Save saves the system state. -func (opts SaveOpts) Save(k *kernel.Kernel, w *watchdog.Watchdog) error { +func (opts SaveOpts) Save(ctx context.Context, k *kernel.Kernel, w *watchdog.Watchdog) error { log.Infof("Sandbox save started, pausing all tasks.") k.Pause() k.ReceiveTaskStates() @@ -81,7 +83,7 @@ func (opts SaveOpts) Save(k *kernel.Kernel, w *watchdog.Watchdog) error { err = ErrStateFile{err} } else { // Save the kernel. - err = k.SaveTo(wc) + err = k.SaveTo(ctx, wc) // ENOSPC is a state file error. This error can only come from // writing the state file, and not from fs.FileOperations.Fsync @@ -108,7 +110,7 @@ type LoadOpts struct { } // Load loads the given kernel, setting the provided platform and stack. -func (opts LoadOpts) Load(k *kernel.Kernel, n inet.Stack, clocks time.Clocks) error { +func (opts LoadOpts) Load(ctx context.Context, k *kernel.Kernel, n inet.Stack, clocks time.Clocks, vfsOpts *vfs.CompleteRestoreOptions) error { // Open the file. r, m, err := statefile.NewReader(opts.Source, opts.Key) if err != nil { @@ -118,5 +120,5 @@ func (opts LoadOpts) Load(k *kernel.Kernel, n inet.Stack, clocks time.Clocks) er previousMetadata = m // Restore the Kernel object graph. - return k.LoadFrom(r, n, clocks) + return k.LoadFrom(ctx, r, n, clocks, vfsOpts) } |