open-vault/logical/plugin/backend.go

65 lines
1.7 KiB
Go

package plugin
import (
"context"
"net/rpc"
"sync/atomic"
"google.golang.org/grpc"
log "github.com/hashicorp/go-hclog"
"github.com/hashicorp/go-plugin"
"github.com/hashicorp/vault/logical"
"github.com/hashicorp/vault/logical/plugin/pb"
)
// BackendPlugin is the plugin.Plugin implementation
type BackendPlugin struct {
Factory logical.Factory
metadataMode bool
Logger log.Logger
}
// Server gets called when on plugin.Serve()
func (b *BackendPlugin) Server(broker *plugin.MuxBroker) (interface{}, error) {
return &backendPluginServer{
factory: b.Factory,
broker: broker,
// We pass the logger down into the backend so go-plugin will forward
// logs for us.
logger: b.Logger,
}, nil
}
// Client gets called on plugin.NewClient()
func (b BackendPlugin) Client(broker *plugin.MuxBroker, c *rpc.Client) (interface{}, error) {
return &backendPluginClient{client: c, broker: broker, metadataMode: b.metadataMode}, nil
}
func (b BackendPlugin) GRPCServer(broker *plugin.GRPCBroker, s *grpc.Server) error {
pb.RegisterBackendServer(s, &backendGRPCPluginServer{
broker: broker,
factory: b.Factory,
// We pass the logger down into the backend so go-plugin will forward
// logs for us.
logger: b.Logger,
})
return nil
}
func (p *BackendPlugin) GRPCClient(ctx context.Context, broker *plugin.GRPCBroker, c *grpc.ClientConn) (interface{}, error) {
ret := &backendGRPCPluginClient{
client: pb.NewBackendClient(c),
clientConn: c,
broker: broker,
cleanupCh: make(chan struct{}),
doneCtx: ctx,
}
// Create the value and set the type
ret.server = new(atomic.Value)
ret.server.Store((*grpc.Server)(nil))
return ret, nil
}