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See related: networkservicemesh/cmd-forwarder-vpp#365 networkservicemesh/api#112 networkservicemesh/sdk-kernel#355 Signed-off-by: Laszlo Kiraly <laszlo.kiraly@est.tech>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,186 @@ | ||
| // Copyright (c) 2021 Nordix Foundation. | ||
| // | ||
| // SPDX-License-Identifier: Apache-2.0 | ||
| // | ||
| // 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 vlan | ||
|
|
||
| import ( | ||
| "context" | ||
| "io" | ||
| "time" | ||
|
|
||
| "git.fd.io/govpp.git/api" | ||
|
|
||
| interfaces "github.com/edwarnicke/govpp/binapi/interface" | ||
| "github.com/golang/protobuf/ptypes/empty" | ||
| "github.com/pkg/errors" | ||
| "google.golang.org/grpc" | ||
|
|
||
| "github.com/networkservicemesh/api/pkg/api/networkservice" | ||
| "github.com/networkservicemesh/api/pkg/api/networkservice/mechanisms/cls" | ||
| vlanmech "github.com/networkservicemesh/api/pkg/api/networkservice/mechanisms/vlan" | ||
| "github.com/networkservicemesh/api/pkg/api/networkservice/payload" | ||
| "github.com/networkservicemesh/sdk/pkg/networkservice/core/chain" | ||
| "github.com/networkservicemesh/sdk/pkg/networkservice/core/next" | ||
| "github.com/networkservicemesh/sdk/pkg/tools/log" | ||
| "github.com/networkservicemesh/sdk/pkg/tools/postpone" | ||
|
|
||
| "github.com/networkservicemesh/sdk-vpp/pkg/networkservice/mechanisms/vlan/hwaddress" | ||
| "github.com/networkservicemesh/sdk-vpp/pkg/networkservice/mechanisms/vlan/l2vtr" | ||
| "github.com/networkservicemesh/sdk-vpp/pkg/networkservice/mechanisms/vlan/linkinit" | ||
| "github.com/networkservicemesh/sdk-vpp/pkg/tools/ifindex" | ||
| ) | ||
|
|
||
| const ( | ||
| serviceDomainLabel = "serviceDomain" | ||
| ) | ||
|
|
||
| type vlanClient struct { | ||
| vppConn api.Connection | ||
| deviceNames map[string]string | ||
| } | ||
|
|
||
| // NewClient returns a VLAN client chain element | ||
| func NewClient(vppConn api.Connection, domain2Device map[string]string) networkservice.NetworkServiceClient { | ||
| return chain.NewNetworkServiceClient( | ||
| hwaddress.NewClient(vppConn), | ||
| l2vtr.NewClient(vppConn), | ||
| &vlanClient{ | ||
| vppConn: vppConn, | ||
| deviceNames: domain2Device, | ||
| }, | ||
| linkinit.NewClient(vppConn, domain2Device), | ||
| ) | ||
| } | ||
|
|
||
| func (v *vlanClient) Request(ctx context.Context, request *networkservice.NetworkServiceRequest, opts ...grpc.CallOption) (*networkservice.Connection, error) { | ||
| if request.GetConnection().GetPayload() != payload.Ethernet { | ||
| return next.Client(ctx).Request(ctx, request, opts...) | ||
| } | ||
|
|
||
| mechanism := &networkservice.Mechanism{ | ||
| Cls: cls.REMOTE, | ||
| Type: vlanmech.MECHANISM, | ||
| Parameters: make(map[string]string), | ||
| } | ||
| request.MechanismPreferences = append(request.MechanismPreferences, mechanism) | ||
|
|
||
| postponeCtxFunc := postpone.ContextWithValues(ctx) | ||
|
|
||
| conn, err := next.Client(ctx).Request(ctx, request, opts...) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| if err := addSubIf(ctx, conn, v.vppConn, v.deviceNames); err != nil { | ||
| closeCtx, cancelClose := postponeCtxFunc() | ||
| defer cancelClose() | ||
|
|
||
| if _, closeErr := v.Close(closeCtx, conn, opts...); closeErr != nil { | ||
| err = errors.Wrapf(err, "connection closed with error: %s", closeErr.Error()) | ||
| } | ||
|
|
||
| return nil, err | ||
| } | ||
|
|
||
| return conn, nil | ||
| } | ||
|
|
||
| func (v *vlanClient) Close(ctx context.Context, conn *networkservice.Connection, opts ...grpc.CallOption) (*empty.Empty, error) { | ||
| if conn.GetPayload() != payload.Ethernet { | ||
| return next.Client(ctx).Close(ctx, conn, opts...) | ||
| } | ||
| _ = delSubIf(ctx, conn, v.vppConn) | ||
| return next.Client(ctx).Close(ctx, conn, opts...) | ||
| } | ||
|
|
||
| func addSubIf(ctx context.Context, conn *networkservice.Connection, vppConn api.Connection, deviceNames map[string]string) error { | ||
| if mechanism := vlanmech.ToMechanism(conn.GetMechanism()); mechanism != nil { | ||
| _, ok := ifindex.Load(ctx, true) | ||
| if ok { | ||
| return nil | ||
| } | ||
| now := time.Now() | ||
| serviceDomain := conn.GetLabels()[serviceDomainLabel] | ||
| hostIFName, ok := deviceNames[serviceDomain] | ||
| if !ok { | ||
| return errors.Errorf("no interface name for service domain %s", serviceDomain) | ||
| } | ||
|
|
||
| client, err := interfaces.NewServiceClient(vppConn).SwInterfaceDump(ctx, &interfaces.SwInterfaceDump{ | ||
| NameFilterValid: true, | ||
| NameFilter: hostIFName, | ||
| }) | ||
| if err != nil { | ||
| return errors.Wrapf(err, "error attempting to get interface dump client to set vlan subinterface on %q", hostIFName) | ||
| } | ||
| log.FromContext(ctx). | ||
| WithField("duration", time.Since(now)). | ||
| WithField("HostInterfaceName", hostIFName). | ||
| WithField("vppapi", "SwInterfaceDump").Debug("completed") | ||
|
|
||
| for { | ||
| details, err := client.Recv() | ||
| if err == io.EOF { | ||
| break | ||
| } | ||
| if err != nil { | ||
| return errors.Wrapf(err, "error attempting to get interface details to set vlan subinterface on %q", hostIFName) | ||
| } | ||
| now = time.Now() | ||
| swIfIndex := details.SwIfIndex | ||
| vlanID := mechanism.GetVlanID() | ||
| vlanSubif := &interfaces.CreateVlanSubif{ | ||
| SwIfIndex: swIfIndex, | ||
| VlanID: vlanID, | ||
| } | ||
|
|
||
| rsp, err := interfaces.NewServiceClient(vppConn).CreateVlanSubif(ctx, vlanSubif) | ||
| if err != nil { | ||
| return errors.WithStack(err) | ||
| } | ||
| log.FromContext(ctx). | ||
| WithField("duration", time.Since(now)). | ||
| WithField("HostInterfaceIndex", swIfIndex). | ||
| WithField("VlanID", vlanID). | ||
| WithField("vppapi", "CreateVlanSubIf").Debug("completed") | ||
|
|
||
| ifindex.Store(ctx, true, rsp.SwIfIndex) | ||
| } | ||
| } | ||
| return nil | ||
| } | ||
| func delSubIf(ctx context.Context, conn *networkservice.Connection, vppConn api.Connection) error { | ||
| if mechanism := vlanmech.ToMechanism(conn.GetMechanism()); mechanism != nil { | ||
| swIfIndex, ok := ifindex.Load(ctx, true) | ||
| if !ok { | ||
| return nil | ||
| } | ||
| now := time.Now() | ||
| vlanSubif := &interfaces.DeleteSubif{ | ||
| SwIfIndex: swIfIndex, | ||
| } | ||
| _, err := interfaces.NewServiceClient(vppConn).DeleteSubif(ctx, vlanSubif) | ||
| if err != nil { | ||
| return errors.WithStack(err) | ||
| } | ||
| log.FromContext(ctx). | ||
| WithField("duration", time.Since(now)). | ||
| WithField("HostInterfaceIndex", swIfIndex). | ||
| WithField("vppapi", "DeleteSubif").Debug("completed") | ||
| ifindex.Delete(ctx, true) | ||
| } | ||
| return nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,18 @@ | ||
| // Copyright (c) 2021 Nordix Foundation. | ||
| // | ||
| // SPDX-License-Identifier: Apache-2.0 | ||
| // | ||
| // 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 vlan provides chain elements for implementing the vlan mechanism | ||
| package vlan |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,72 @@ | ||
| // Copyright (c) 2021 Nordix Foundation. | ||
| // | ||
| // SPDX-License-Identifier: Apache-2.0 | ||
| // | ||
| // 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 hwaddress | ||
|
|
||
| import ( | ||
| "context" | ||
|
|
||
| "git.fd.io/govpp.git/api" | ||
| "github.com/golang/protobuf/ptypes/empty" | ||
| "github.com/pkg/errors" | ||
| "google.golang.org/grpc" | ||
|
|
||
| "github.com/networkservicemesh/api/pkg/api/networkservice" | ||
| "github.com/networkservicemesh/sdk/pkg/networkservice/core/next" | ||
| "github.com/networkservicemesh/sdk/pkg/networkservice/utils/metadata" | ||
| "github.com/networkservicemesh/sdk/pkg/tools/postpone" | ||
| ) | ||
|
|
||
| type hwaddressClient struct { | ||
| vppConn api.Connection | ||
| } | ||
|
|
||
| // NewClient - updates ethernet context with hw address | ||
| func NewClient(vppConn api.Connection) networkservice.NetworkServiceClient { | ||
| return &hwaddressClient{ | ||
| vppConn: vppConn, | ||
| } | ||
| } | ||
|
|
||
| func (h *hwaddressClient) Request(ctx context.Context, request *networkservice.NetworkServiceRequest, opts ...grpc.CallOption) (*networkservice.Connection, error) { | ||
| postponeCtxFunc := postpone.ContextWithValues(ctx) | ||
|
|
||
| conn, err := next.Client(ctx).Request(ctx, request, opts...) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| if err := setEthContextHwaddress(ctx, conn, h.vppConn, metadata.IsClient(h)); err != nil { | ||
| if closeErr := h.closeOnFailure(postponeCtxFunc, conn, opts); closeErr != nil { | ||
| err = errors.Wrapf(err, "connection closed with error: %s", closeErr.Error()) | ||
| } | ||
| return nil, err | ||
| } | ||
| return conn, nil | ||
| } | ||
|
|
||
| func (h *hwaddressClient) closeOnFailure(postponeCtxFunc func() (context.Context, context.CancelFunc), conn *networkservice.Connection, opts []grpc.CallOption) error { | ||
| closeCtx, cancelClose := postponeCtxFunc() | ||
| defer cancelClose() | ||
|
|
||
| _, err := h.Close(closeCtx, conn, opts...) | ||
|
|
||
| return err | ||
| } | ||
|
|
||
| func (h *hwaddressClient) Close(ctx context.Context, conn *networkservice.Connection, opts ...grpc.CallOption) (*empty.Empty, error) { | ||
| return next.Client(ctx).Close(ctx, conn, opts...) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,61 @@ | ||
| // Copyright (c) 2021 Nordix Foundation. | ||
| // | ||
| // SPDX-License-Identifier: Apache-2.0 | ||
| // | ||
| // 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 hwaddress | ||
|
|
||
| import ( | ||
| "context" | ||
| "time" | ||
|
|
||
| "git.fd.io/govpp.git/api" | ||
| "github.com/pkg/errors" | ||
|
|
||
| interfaces "github.com/edwarnicke/govpp/binapi/interface" | ||
| "github.com/networkservicemesh/api/pkg/api/networkservice" | ||
| vlanmech "github.com/networkservicemesh/api/pkg/api/networkservice/mechanisms/vlan" | ||
| "github.com/networkservicemesh/sdk/pkg/tools/log" | ||
|
|
||
| "github.com/networkservicemesh/sdk-vpp/pkg/tools/ifindex" | ||
| ) | ||
|
|
||
| func setEthContextHwaddress(ctx context.Context, conn *networkservice.Connection, vppConn api.Connection, isClient bool) error { | ||
| if mechanism := vlanmech.ToMechanism(conn.GetMechanism()); mechanism != nil { | ||
| now := time.Now() | ||
| swIfIndex, ok := ifindex.Load(ctx, isClient) | ||
| if !ok { | ||
| return nil | ||
| } | ||
|
|
||
| rsp, err := interfaces.NewServiceClient(vppConn).SwInterfaceGetMacAddress(ctx, &interfaces.SwInterfaceGetMacAddress{ | ||
| SwIfIndex: swIfIndex}) | ||
| if err != nil { | ||
| return errors.WithStack(err) | ||
| } | ||
| log.FromContext(ctx). | ||
| WithField("duration", time.Since(now)). | ||
| WithField("HostInterfaceIndex", swIfIndex). | ||
| WithField("HwAddress", rsp.MacAddress). | ||
| WithField("vppapi", "SwInterfaceGetMacAddress").Debug("completed") | ||
|
|
||
| if conn.GetContext().GetEthernetContext() == nil { | ||
| conn.GetContext().EthernetContext = new(networkservice.EthernetContext) | ||
| } | ||
| ethernetContext := conn.GetContext().GetEthernetContext() | ||
|
|
||
| ethernetContext.SrcMac = rsp.MacAddress.String() | ||
| } | ||
| return nil | ||
| } |
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