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author | gVisor bot <gvisor-bot@google.com> | 2020-03-24 16:11:16 +0000 |
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committer | gVisor bot <gvisor-bot@google.com> | 2020-03-24 16:11:16 +0000 |
commit | 277285086b0f8630bfacc155746a15684ea01548 (patch) | |
tree | 8a7bb7dca00e9506b8005370454ac4d1e0bfe11e /pkg/tcpip/stack/packet_buffer_state.go | |
parent | f85e510e0beb51f7807c4a8129c6f9a9b4f916d2 (diff) | |
parent | 7e4073af12bed2c76bc5757ef3e5fbfba75308a0 (diff) |
Merge release-20200219.0-220-g7e4073a (automated)
Diffstat (limited to 'pkg/tcpip/stack/packet_buffer_state.go')
-rwxr-xr-x | pkg/tcpip/stack/packet_buffer_state.go | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/pkg/tcpip/stack/packet_buffer_state.go b/pkg/tcpip/stack/packet_buffer_state.go new file mode 100755 index 000000000..76602549e --- /dev/null +++ b/pkg/tcpip/stack/packet_buffer_state.go @@ -0,0 +1,26 @@ +// 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 stack + +import "gvisor.dev/gvisor/pkg/tcpip/buffer" + +// beforeSave is invoked by stateify. +func (pk *PacketBuffer) beforeSave() { + // Non-Data fields may be slices of the Data field. This causes + // problems for SR, so during save we make each header independent. + pk.Header = pk.Header.DeepCopy() + pk.LinkHeader = append(buffer.View(nil), pk.LinkHeader...) + pk.NetworkHeader = append(buffer.View(nil), pk.NetworkHeader...) + pk.TransportHeader = append(buffer.View(nil), pk.TransportHeader...) +} |