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