mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-11-24 07:10:20 +00:00
29782bf377
implement UnfenceClusterNetwork grpc call which allows to unblock the access to a CIDR block by removing it from network fence. Signed-off-by: Yug Gupta <yuggupta27@gmail.com>
115 lines
3.8 KiB
Go
115 lines
3.8 KiB
Go
/*
|
|
Copyright 2022 The Ceph-CSI 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 rbd
|
|
|
|
import (
|
|
"context"
|
|
"errors"
|
|
|
|
nf "github.com/ceph/ceph-csi/internal/csi-addons/networkfence"
|
|
"github.com/ceph/ceph-csi/internal/util"
|
|
|
|
"github.com/csi-addons/spec/lib/go/fence"
|
|
"google.golang.org/grpc"
|
|
"google.golang.org/grpc/codes"
|
|
"google.golang.org/grpc/status"
|
|
)
|
|
|
|
// FenceControllerServer struct of rbd CSI driver with supported methods
|
|
// of CSI-addons networkfence controller service spec.
|
|
type FenceControllerServer struct {
|
|
*fence.UnimplementedFenceControllerServer
|
|
}
|
|
|
|
// NewFenceControllerServer creates a new IdentityServer which handles
|
|
// the Identity Service requests from the CSI-Addons specification.
|
|
func NewFenceControllerServer() *FenceControllerServer {
|
|
return &FenceControllerServer{}
|
|
}
|
|
|
|
func (fcs *FenceControllerServer) RegisterService(server grpc.ServiceRegistrar) {
|
|
fence.RegisterFenceControllerServer(server, fcs)
|
|
}
|
|
|
|
// validateFenceClusterNetworkReq checks the sanity of FenceClusterNetworkRequest.
|
|
func validateNetworkFenceReq(fenceClients []*fence.CIDR, options map[string]string) error {
|
|
if len(fenceClients) == 0 {
|
|
return errors.New("CIDR block cannot be empty")
|
|
}
|
|
|
|
if value, ok := options["clusterID"]; !ok || value == "" {
|
|
return errors.New("missing or empty clusterID")
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
// FenceClusterNetwork blocks access to a CIDR block by creating a network fence.
|
|
// It adds the range of IPs to the osd blocklist, which helps ceph in denying access
|
|
// to the malicious clients to prevent data corruption.
|
|
func (fcs *FenceControllerServer) FenceClusterNetwork(
|
|
ctx context.Context,
|
|
req *fence.FenceClusterNetworkRequest) (*fence.FenceClusterNetworkResponse, error) {
|
|
err := validateNetworkFenceReq(req.GetCidrs(), req.Parameters)
|
|
if err != nil {
|
|
return nil, status.Error(codes.InvalidArgument, err.Error())
|
|
}
|
|
|
|
cr, err := util.NewUserCredentials(req.GetSecrets())
|
|
if err != nil {
|
|
return nil, status.Error(codes.Internal, err.Error())
|
|
}
|
|
defer cr.DeleteCredentials()
|
|
|
|
nwFence, err := nf.NewNetworkFence(ctx, cr, req.Cidrs, req.GetParameters())
|
|
if err != nil {
|
|
return nil, status.Error(codes.Internal, err.Error())
|
|
}
|
|
|
|
err = nwFence.AddNetworkFence(ctx)
|
|
if err != nil {
|
|
return nil, status.Errorf(codes.Internal, "failed to fence CIDR block %q: %s", nwFence.Cidr, err.Error())
|
|
}
|
|
|
|
return &fence.FenceClusterNetworkResponse{}, nil
|
|
}
|
|
|
|
// UnfenceClusterNetwork unblocks the access to a CIDR block by removing the network fence.
|
|
func (fcs *FenceControllerServer) UnfenceClusterNetwork(
|
|
ctx context.Context,
|
|
req *fence.UnfenceClusterNetworkRequest) (*fence.UnfenceClusterNetworkResponse, error) {
|
|
err := validateNetworkFenceReq(req.GetCidrs(), req.Parameters)
|
|
if err != nil {
|
|
return nil, status.Error(codes.InvalidArgument, err.Error())
|
|
}
|
|
|
|
cr, err := util.NewUserCredentials(req.GetSecrets())
|
|
if err != nil {
|
|
return nil, status.Error(codes.InvalidArgument, err.Error())
|
|
}
|
|
defer cr.DeleteCredentials()
|
|
|
|
nwFence, err := nf.NewNetworkFence(ctx, cr, req.Cidrs, req.GetParameters())
|
|
if err != nil {
|
|
return nil, status.Error(codes.Internal, err.Error())
|
|
}
|
|
|
|
err = nwFence.RemoveNetworkFence(ctx)
|
|
if err != nil {
|
|
return nil, status.Errorf(codes.Internal, "failed to unfence CIDR block %q: %s", nwFence.Cidr, err.Error())
|
|
}
|
|
|
|
return &fence.UnfenceClusterNetworkResponse{}, nil
|
|
}
|