diff options
| author | Ayush Ranjan <ayushranjan@google.com> | 2020-08-27 19:25:23 -0700 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2020-08-27 19:27:18 -0700 |
| commit | 421e35020bbca240d8f1cb5a2a3efd39750c4589 (patch) | |
| tree | 9620e7d8a2716bcf95b7c5949be8ee374b0688ff /pkg/sentry/devices/tundev | |
| parent | 84f04909c2c3a55b209f01315493e6850160d707 (diff) | |
[go-marshal] Enable auto-marshalling for tundev.
PiperOrigin-RevId: 328863725
Diffstat (limited to 'pkg/sentry/devices/tundev')
| -rw-r--r-- | pkg/sentry/devices/tundev/tundev.go | 17 |
1 files changed, 7 insertions, 10 deletions
diff --git a/pkg/sentry/devices/tundev/tundev.go b/pkg/sentry/devices/tundev/tundev.go index a40625e19..0b701a289 100644 --- a/pkg/sentry/devices/tundev/tundev.go +++ b/pkg/sentry/devices/tundev/tundev.go @@ -64,12 +64,13 @@ func (fd *tunFD) Ioctl(ctx context.Context, uio usermem.IO, args arch.SyscallArg request := args[1].Uint() data := args[2].Pointer() + t := kernel.TaskFromContext(ctx) + if t == nil { + panic("Ioctl should be called from a task context") + } + switch request { case linux.TUNSETIFF: - t := kernel.TaskFromContext(ctx) - if t == nil { - panic("Ioctl should be called from a task context") - } if !t.HasCapability(linux.CAP_NET_ADMIN) { return 0, syserror.EPERM } @@ -79,9 +80,7 @@ func (fd *tunFD) Ioctl(ctx context.Context, uio usermem.IO, args arch.SyscallArg } var req linux.IFReq - if _, err := usermem.CopyObjectIn(ctx, uio, data, &req, usermem.IOOpts{ - AddressSpaceActive: true, - }); err != nil { + if _, err := req.CopyIn(t, data); err != nil { return 0, err } flags := usermem.ByteOrder.Uint16(req.Data[:]) @@ -97,9 +96,7 @@ func (fd *tunFD) Ioctl(ctx context.Context, uio usermem.IO, args arch.SyscallArg flags := fd.device.Flags() | linux.IFF_NOFILTER usermem.ByteOrder.PutUint16(req.Data[:], flags) - _, err := usermem.CopyObjectOut(ctx, uio, data, &req, usermem.IOOpts{ - AddressSpaceActive: true, - }) + _, err := req.CopyOut(t, data) return 0, err default: |