mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-12-11 15:40:24 +00:00
138 lines
3.4 KiB
Go
138 lines
3.4 KiB
Go
/*
|
|
Copyright 2017 The Kubernetes 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 csicommon
|
|
|
|
import (
|
|
"github.com/golang/glog"
|
|
"google.golang.org/grpc/codes"
|
|
"google.golang.org/grpc/status"
|
|
|
|
"github.com/container-storage-interface/spec/lib/go/csi"
|
|
)
|
|
|
|
type CSIDriver struct {
|
|
name string
|
|
nodeID string
|
|
version *csi.Version
|
|
supVers []*csi.Version
|
|
cap []*csi.ControllerServiceCapability
|
|
vc []*csi.VolumeCapability_AccessMode
|
|
}
|
|
|
|
// Creates a NewCSIDriver object. Assumes vendor version is equal to driver version &
|
|
// does not support optional driver plugin info manifest field. Refer to CSI spec for more details.
|
|
func NewCSIDriver(name string, v *csi.Version, supVers []*csi.Version, nodeID string) *CSIDriver {
|
|
if name == "" {
|
|
glog.Errorf("Driver name missing")
|
|
return nil
|
|
}
|
|
|
|
if nodeID == "" {
|
|
glog.Errorf("NodeID missing")
|
|
return nil
|
|
}
|
|
|
|
if v == nil {
|
|
glog.Errorf("Version argument missing")
|
|
return nil
|
|
}
|
|
|
|
found := false
|
|
for _, sv := range supVers {
|
|
if sv.GetMajor() == v.GetMajor() && sv.GetMinor() == v.GetMinor() && sv.GetPatch() == v.GetPatch() {
|
|
found = true
|
|
}
|
|
}
|
|
|
|
if !found {
|
|
supVers = append(supVers, v)
|
|
}
|
|
|
|
driver := CSIDriver{
|
|
name: name,
|
|
version: v,
|
|
supVers: supVers,
|
|
nodeID: nodeID,
|
|
}
|
|
|
|
return &driver
|
|
}
|
|
|
|
func (d *CSIDriver) CheckVersion(v *csi.Version) error {
|
|
if v == nil {
|
|
return status.Error(codes.InvalidArgument, "Version missing")
|
|
}
|
|
|
|
// Assumes always backward compatible
|
|
for _, sv := range d.supVers {
|
|
if v.Major == sv.Major && v.Minor <= sv.Minor {
|
|
return nil
|
|
}
|
|
}
|
|
|
|
return status.Error(codes.InvalidArgument, "Unsupported version: "+GetVersionString(v))
|
|
}
|
|
|
|
func (d *CSIDriver) ValidateControllerServiceRequest(v *csi.Version, c csi.ControllerServiceCapability_RPC_Type) error {
|
|
if v == nil {
|
|
return status.Error(codes.InvalidArgument, "Version not specified")
|
|
}
|
|
|
|
if err := d.CheckVersion(v); err != nil {
|
|
return status.Error(codes.InvalidArgument, "Unsupported version")
|
|
}
|
|
|
|
if c == csi.ControllerServiceCapability_RPC_UNKNOWN {
|
|
return nil
|
|
}
|
|
|
|
for _, cap := range d.cap {
|
|
if c == cap.GetRpc().GetType() {
|
|
return nil
|
|
}
|
|
}
|
|
|
|
return status.Error(codes.InvalidArgument, "Unsupported version: "+GetVersionString(v))
|
|
}
|
|
|
|
func (d *CSIDriver) AddControllerServiceCapabilities(cl []csi.ControllerServiceCapability_RPC_Type) {
|
|
var csc []*csi.ControllerServiceCapability
|
|
|
|
for _, c := range cl {
|
|
glog.Infof("Enabling controller service capability: %v", c.String())
|
|
csc = append(csc, NewControllerServiceCapability(c))
|
|
}
|
|
|
|
d.cap = csc
|
|
|
|
return
|
|
}
|
|
|
|
func (d *CSIDriver) AddVolumeCapabilityAccessModes(vc []csi.VolumeCapability_AccessMode_Mode) []*csi.VolumeCapability_AccessMode {
|
|
var vca []*csi.VolumeCapability_AccessMode
|
|
for _, c := range vc {
|
|
glog.Infof("Enabling volume access mode: %v", c.String())
|
|
vca = append(vca, NewVolumeCapabilityAccessMode(c))
|
|
}
|
|
d.vc = vca
|
|
return vca
|
|
}
|
|
|
|
func (d *CSIDriver) GetVolumeCapabilityAccessModes() []*csi.VolumeCapability_AccessMode {
|
|
return d.vc
|
|
}
|