From 19e9ed5cdf96f6afdf0a17a9e80ae1917e1aae93 Mon Sep 17 00:00:00 2001
From: Elliott Jin <elliott.jin@gmail.com>
Date: Sat, 13 Feb 2021 00:35:07 -0800
Subject: [PATCH] lncli: add updatechanstatus command
The updatechanstatus command calls into the UpdateChanStatus RPC
in the router server.
---
cmd/lncli/cmd_update_chan_status.go | 94 +++++++++++++++++++++++++++++
cmd/lncli/routerrpc.go | 1 +
2 files changed, 95 insertions(+)
create mode 100644 cmd/lncli/cmd_update_chan_status.go
diff --git a/cmd/lncli/cmd_update_chan_status.go b/cmd/lncli/cmd_update_chan_status.go
new file mode 100644
index 000000000..e1d08f073
--- /dev/null
+++ b/cmd/lncli/cmd_update_chan_status.go
@@ -0,0 +1,94 @@
+package main
+
+import (
+ "context"
+ "errors"
+
+ "github.com/lightningnetwork/lnd/lnrpc/routerrpc"
+ "github.com/urfave/cli"
+)
+
+var updateChanStatusCommand = cli.Command{
+ Name: "updatechanstatus",
+ Category: "Channels",
+ Usage: "Set the status of an existing channel on the network.",
+ Description: `
+ Set the status of an existing channel on the network. The actions can
+ be "enable", "disable", or "auto". If the action changes the status, a
+ message will be broadcast over the network.
+
+ Note that enabling / disabling a channel using this command ONLY affects
+ what's advertised over the network. For example, disabling a channel
+ using this command does not close it.
+
+ If a channel is manually disabled, automatic / background requests to
+ re-enable the channel will be ignored. However, if a channel is
+ manually enabled, automatic / background requests to disable the
+ channel will succeed (such requests are usually made on channel close
+ or when the peer is down).
+
+ The "auto" action restores automatic channel state management. Per
+ the behavior described above, it's only needed to undo the effect of
+ a prior "disable" action, and will be a no-op otherwise.`,
+ ArgsUsage: "funding_txid [output_index] action",
+ Flags: []cli.Flag{
+ cli.StringFlag{
+ Name: "funding_txid",
+ Usage: "the txid of the channel's funding transaction",
+ },
+ cli.IntFlag{
+ Name: "output_index",
+ Usage: "the output index for the funding output of the funding " +
+ "transaction",
+ },
+ cli.StringFlag{
+ Name: "action",
+ Usage: `the action to take: must be one of "enable", "disable", ` +
+ `or "auto"`,
+ },
+ },
+ Action: actionDecorator(updateChanStatus),
+}
+
+func updateChanStatus(ctx *cli.Context) error {
+ conn := getClientConn(ctx, false)
+ defer conn.Close()
+
+ if ctx.NArg() == 0 && ctx.NumFlags() == 0 {
+ _ = cli.ShowCommandHelp(ctx, "updatechanstatus")
+ return nil
+ }
+
+ channelPoint, err := parseChannelPoint(ctx)
+ if err != nil {
+ return err
+ }
+
+ var action routerrpc.ChanStatusAction
+ switch ctx.String("action") {
+ case "enable":
+ action = routerrpc.ChanStatusAction_ENABLE
+ case "disable":
+ action = routerrpc.ChanStatusAction_DISABLE
+ case "auto":
+ action = routerrpc.ChanStatusAction_AUTO
+ default:
+ return errors.New(`action must be one of "enable", "disable", ` +
+ `or "auto"`)
+ }
+ req := &routerrpc.UpdateChanStatusRequest{
+ ChanPoint: channelPoint,
+ Action: action,
+ }
+
+ client := routerrpc.NewRouterClient(conn)
+ ctxb := context.Background()
+ resp, err := client.UpdateChanStatus(ctxb, req)
+ if err != nil {
+ return err
+ }
+
+ printRespJSON(resp)
+
+ return nil
+}
diff --git a/cmd/lncli/routerrpc.go b/cmd/lncli/routerrpc.go
index 04c9676ec..4cea75be4 100644
--- a/cmd/lncli/routerrpc.go
+++ b/cmd/lncli/routerrpc.go
@@ -11,5 +11,6 @@ func routerCommands() []cli.Command {
buildRouteCommand,
getCfgCommand,
setCfgCommand,
+ updateChanStatusCommand,
}
}