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interfaces_vppcalls.go
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interfaces_vppcalls.go
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// Copyright (c) 2019 Cisco and/or its affiliates.
//
// 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 vpp2001_324
import (
"fmt"
vpp_acl "github.com/ligato/vpp-agent/plugins/vpp/binapi/vpp2001_324/acl"
)
// SetACLToInterfacesAsIngress implements ACL handler.
func (h *ACLVppHandler) SetACLToInterfacesAsIngress(ACLIndex uint32, ifIndices []uint32) error {
return h.requestSetACLToInterfaces(&aclInterfaceLogicalReq{
aclIndex: ACLIndex,
ifIndices: ifIndices,
ingress: true,
})
}
// RemoveACLFromInterfacesAsIngress implements ACL handler.
func (h *ACLVppHandler) RemoveACLFromInterfacesAsIngress(ACLIndex uint32, ifIndices []uint32) error {
return h.requestRemoveInterfacesFromACL(&aclInterfaceLogicalReq{
aclIndex: ACLIndex,
ifIndices: ifIndices,
ingress: true,
})
}
// SetACLToInterfacesAsEgress implements ACL handler.
func (h *ACLVppHandler) SetACLToInterfacesAsEgress(ACLIndex uint32, ifIndices []uint32) error {
return h.requestSetACLToInterfaces(&aclInterfaceLogicalReq{
aclIndex: ACLIndex,
ifIndices: ifIndices,
ingress: false,
})
}
// RemoveACLFromInterfacesAsEgress implements ACL handler.
func (h *ACLVppHandler) RemoveACLFromInterfacesAsEgress(ACLIndex uint32, ifIndices []uint32) error {
return h.requestRemoveInterfacesFromACL(&aclInterfaceLogicalReq{
aclIndex: ACLIndex,
ifIndices: ifIndices,
ingress: false,
})
}
// AddACLToInterfaceAsIngress implements ACL handler.
func (h *ACLVppHandler) AddACLToInterfaceAsIngress(aclIndex uint32, ifName string) error {
meta, ok := h.ifIndexes.LookupByName(ifName)
if !ok {
return fmt.Errorf("metadata for interface %s not found", ifName)
}
ifIdx := meta.SwIfIndex
req := &vpp_acl.ACLInterfaceAddDel{
ACLIndex: aclIndex,
IsAdd: 1,
SwIfIndex: ifIdx,
IsInput: 1,
}
reply := &vpp_acl.ACLInterfaceAddDelReply{}
err := h.callsChannel.SendRequest(req).ReceiveReply(reply)
if err != nil {
return fmt.Errorf("failed to add interface %d to ACL (L3/L4) %d as ingress: %v", ifIdx, aclIndex, err)
}
return nil
}
// AddACLToInterfaceAsEgress implements ACL handler.
func (h *ACLVppHandler) AddACLToInterfaceAsEgress(aclIndex uint32, ifName string) error {
meta, ok := h.ifIndexes.LookupByName(ifName)
if !ok {
return fmt.Errorf("metadata for interface %s not found", ifName)
}
ifIdx := meta.SwIfIndex
req := &vpp_acl.ACLInterfaceAddDel{
ACLIndex: aclIndex,
IsAdd: 1,
SwIfIndex: ifIdx,
IsInput: 0,
}
reply := &vpp_acl.ACLInterfaceAddDelReply{}
err := h.callsChannel.SendRequest(req).ReceiveReply(reply)
if err != nil {
return fmt.Errorf("failed to add interface %d to ACL (L3/L4) %d as egress: %v", ifIdx, aclIndex, err)
}
return nil
}
// DeleteACLFromInterfaceAsIngress implements ACL handler.
func (h *ACLVppHandler) DeleteACLFromInterfaceAsIngress(aclIndex uint32, ifName string) error {
meta, ok := h.ifIndexes.LookupByName(ifName)
if !ok {
return fmt.Errorf("metadata for interface %s not found", ifName)
}
ifIdx := meta.SwIfIndex
req := &vpp_acl.ACLInterfaceAddDel{
ACLIndex: aclIndex,
IsAdd: 0,
SwIfIndex: ifIdx,
IsInput: 1,
}
reply := &vpp_acl.ACLInterfaceAddDelReply{}
if err := h.callsChannel.SendRequest(req).ReceiveReply(reply); err != nil {
return fmt.Errorf("failed to delete interface %d from ACL (L3/L4) %d as ingress: %v", ifIdx, aclIndex, err)
}
return nil
}
// DeleteACLFromInterfaceAsEgress implements ACL handler.
func (h *ACLVppHandler) DeleteACLFromInterfaceAsEgress(aclIndex uint32, ifName string) error {
meta, ok := h.ifIndexes.LookupByName(ifName)
if !ok {
return fmt.Errorf("metadata for interface %s not found", ifName)
}
ifIdx := meta.SwIfIndex
req := &vpp_acl.ACLInterfaceAddDel{
ACLIndex: aclIndex,
IsAdd: 0,
SwIfIndex: ifIdx,
IsInput: 0,
}
reply := &vpp_acl.ACLInterfaceAddDelReply{}
if err := h.callsChannel.SendRequest(req).ReceiveReply(reply); err != nil {
return fmt.Errorf("failed to delete interface %d from ACL (L3/L4) %d as egress: %v", ifIdx, aclIndex, err)
}
return nil
}
// AddMACIPACLToInterface implements ACL handler.
func (h *ACLVppHandler) AddMACIPACLToInterface(aclIndex uint32, ifName string) error {
meta, ok := h.ifIndexes.LookupByName(ifName)
if !ok {
return fmt.Errorf("metadata for interface %s not found", ifName)
}
ifIdx := meta.SwIfIndex
req := &vpp_acl.MacipACLInterfaceAddDel{
ACLIndex: aclIndex,
IsAdd: 1,
SwIfIndex: ifIdx,
}
reply := &vpp_acl.MacipACLInterfaceAddDelReply{}
err := h.callsChannel.SendRequest(req).ReceiveReply(reply)
if err != nil {
return fmt.Errorf("failed to add interface %d to MACIP ACL (L2) %d: %v", ifIdx, aclIndex, err)
}
return nil
}
// DeleteMACIPACLFromInterface implements ACL handler.
func (h *ACLVppHandler) DeleteMACIPACLFromInterface(aclIndex uint32, ifName string) error {
meta, ok := h.ifIndexes.LookupByName(ifName)
if !ok {
return fmt.Errorf("metadata for interface %s not found", ifName)
}
ifIdx := meta.SwIfIndex
req := &vpp_acl.MacipACLInterfaceAddDel{
ACLIndex: aclIndex,
IsAdd: 0,
SwIfIndex: ifIdx,
}
reply := &vpp_acl.MacipACLInterfaceAddDelReply{}
err := h.callsChannel.SendRequest(req).ReceiveReply(reply)
if err != nil {
return fmt.Errorf("failed to delete interface %d from MACIP ACL (L2) %d: %v", ifIdx, aclIndex, err)
}
return nil
}
// SetMACIPACLToInterfaces implements ACL handler.
func (h *ACLVppHandler) SetMACIPACLToInterfaces(aclIndex uint32, ifIndices []uint32) error {
for _, ingressIfIdx := range ifIndices {
req := &vpp_acl.MacipACLInterfaceAddDel{
ACLIndex: aclIndex,
IsAdd: 1,
SwIfIndex: ingressIfIdx,
}
reply := &vpp_acl.MacipACLInterfaceAddDelReply{}
err := h.callsChannel.SendRequest(req).ReceiveReply(reply)
if err != nil {
return fmt.Errorf("failed to set interface %d to L2 ACL %d: %v", ingressIfIdx, aclIndex, err)
}
}
return nil
}
// RemoveMACIPACLFromInterfaces implements ACL handler.
func (h *ACLVppHandler) RemoveMACIPACLFromInterfaces(removedACLIndex uint32, ifIndices []uint32) error {
for _, ifIdx := range ifIndices {
req := &vpp_acl.MacipACLInterfaceAddDel{
ACLIndex: removedACLIndex,
SwIfIndex: ifIdx,
IsAdd: 0,
}
reply := &vpp_acl.MacipACLInterfaceAddDelReply{}
if err := h.callsChannel.SendRequest(req).ReceiveReply(reply); err != nil {
return fmt.Errorf("failed to remove L2 ACL %d from interface %d: %v", removedACLIndex, ifIdx, err)
}
}
return nil
}
// aclInterfaceLogicalReq groups multiple fields to not enumerate all of them in one function call
type aclInterfaceLogicalReq struct {
aclIndex uint32
ifIndices []uint32
ingress bool
}
func (h *ACLVppHandler) requestSetACLToInterfaces(logicalReq *aclInterfaceLogicalReq) error {
for _, aclIfIdx := range logicalReq.ifIndices {
// Create acl list with new entry
var ACLs []uint32
// All previously assigned ACLs have to be dumped and added to acl list
aclInterfaceDetails, err := h.DumpInterfaceACLList(aclIfIdx)
if err != nil {
return err
}
var nInput uint8
if aclInterfaceDetails != nil {
nInput = aclInterfaceDetails.NInput
if logicalReq.ingress {
// Construct ACL list. ACLs within NInput are defined as ingress, so provided new aclIndex has to be
// added to the beginning of the list
// TODO it would be nicer to add new acl index to newNInput index
ACLs = append(ACLs, logicalReq.aclIndex)
for _, aclIndex := range aclInterfaceDetails.Acls {
ACLs = append(ACLs, aclIndex)
}
nInput++ // Rise NInput
} else {
// Construct ACL list. ACLs outside of NInput are defined as egress, so provided new aclIndex has to be
// added to the end of the list
for _, aclIndex := range aclInterfaceDetails.Acls {
ACLs = append(ACLs, aclIndex)
}
ACLs = append(ACLs, logicalReq.aclIndex)
// NInput remains the same
}
}
msg := &vpp_acl.ACLInterfaceSetACLList{
Acls: ACLs,
Count: uint8(len(ACLs)),
SwIfIndex: aclIfIdx,
NInput: nInput,
}
reply := &vpp_acl.ACLInterfaceSetACLListReply{}
err = h.callsChannel.SendRequest(msg).ReceiveReply(reply)
if err != nil {
return err
}
}
return nil
}
func (h *ACLVppHandler) requestRemoveInterfacesFromACL(logicalReq *aclInterfaceLogicalReq) error {
var wasErr error
for _, aclIfIdx := range logicalReq.ifIndices {
// Create empty ACL list
var ACLs []uint32
// All assigned ACLs have to be dumped
aclInterfaceDetails, err := h.DumpInterfaceACLList(aclIfIdx)
if err != nil {
return err
}
// Reconstruct ACL list without removed ACL
var nInput uint8
if aclInterfaceDetails != nil {
nInput = aclInterfaceDetails.NInput
for idx, aclIndex := range aclInterfaceDetails.Acls {
if (aclIndex != logicalReq.aclIndex) ||
(logicalReq.ingress && idx >= int(aclInterfaceDetails.NInput)) ||
(!logicalReq.ingress && idx < int(aclInterfaceDetails.NInput)) {
ACLs = append(ACLs, aclIndex)
} else {
// Decrease NInput if ingress, otherwise keep it the same
if logicalReq.ingress {
nInput--
}
}
}
}
msg := &vpp_acl.ACLInterfaceSetACLList{
Acls: ACLs,
Count: uint8(len(ACLs)),
SwIfIndex: aclIfIdx,
NInput: nInput,
}
reply := &vpp_acl.ACLInterfaceSetACLListReply{}
err = h.callsChannel.SendRequest(msg).ReceiveReply(reply)
if err != nil {
wasErr = err
}
}
return wasErr
}