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https://github.com/netbirdio/gvisor.git
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Nayana BidariandgVisor bot
90266aa28a
Marks the structs in netstack as savable. This does not change or break any existing behavior as the netstack itself is not savable yet. PiperOrigin-RevId: 635943481
56 lines
2.4 KiB
Go
56 lines
2.4 KiB
Go
// Copyright 2019 The gVisor Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package raw
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import (
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"gvisor.dev/gvisor/pkg/tcpip"
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"gvisor.dev/gvisor/pkg/tcpip/stack"
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"gvisor.dev/gvisor/pkg/tcpip/transport/internal/noop"
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"gvisor.dev/gvisor/pkg/tcpip/transport/packet"
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"gvisor.dev/gvisor/pkg/waiter"
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)
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// EndpointFactory implements stack.RawFactory.
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//
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// +stateify savable
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type EndpointFactory struct{}
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// NewUnassociatedEndpoint implements stack.RawFactory.NewUnassociatedEndpoint.
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func (EndpointFactory) NewUnassociatedEndpoint(stack *stack.Stack, netProto tcpip.NetworkProtocolNumber, transProto tcpip.TransportProtocolNumber, waiterQueue *waiter.Queue) (tcpip.Endpoint, tcpip.Error) {
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return newEndpoint(stack, netProto, transProto, waiterQueue, false /* associated */)
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}
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// NewPacketEndpoint implements stack.RawFactory.NewPacketEndpoint.
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func (EndpointFactory) NewPacketEndpoint(stack *stack.Stack, cooked bool, netProto tcpip.NetworkProtocolNumber, waiterQueue *waiter.Queue) (tcpip.Endpoint, tcpip.Error) {
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return packet.NewEndpoint(stack, cooked, netProto, waiterQueue), nil
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}
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// CreateOnlyFactory implements stack.RawFactory. It allows creation of raw
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// endpoints that do not support reading, writing, binding, etc.
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//
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// +stateify savable
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type CreateOnlyFactory struct{}
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// NewUnassociatedEndpoint implements stack.RawFactory.NewUnassociatedEndpoint.
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func (CreateOnlyFactory) NewUnassociatedEndpoint(stk *stack.Stack, _ tcpip.NetworkProtocolNumber, _ tcpip.TransportProtocolNumber, _ *waiter.Queue) (tcpip.Endpoint, tcpip.Error) {
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return noop.New(stk), nil
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}
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// NewPacketEndpoint implements stack.RawFactory.NewPacketEndpoint.
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func (CreateOnlyFactory) NewPacketEndpoint(*stack.Stack, bool, tcpip.NetworkProtocolNumber, *waiter.Queue) (tcpip.Endpoint, tcpip.Error) {
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// This isn't needed by anything, so it isn't implemented.
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return nil, &tcpip.ErrNotPermitted{}
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}
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