rpcserver+fundingmanager: thread remote_max_htlcs to channel opening

lntest/harness.go

@@ -855,6 +855,11 @@ type OpenChannelParams struct {
 	// MinHtlc is the htlc_minimum_msat value set when opening the channel.
 	MinHtlc lnwire.MilliSatoshi
 
+	// RemoteMaxHtlcs is the remote_max_htlcs value set when opening the
+	// channel, restricting the number of concurrent HTLCs the remote party
+	// can add to a commitment.
+	RemoteMaxHtlcs uint16
+
 	// FundingShim is an optional funding shim that the caller can specify
 	// in order to modify the channel funding workflow.
 	FundingShim *lnrpc.FundingShim
@@ -893,6 +898,7 @@ func (n *NetworkHarness) OpenChannel(ctx context.Context,
 		MinConfs:           minConfs,
 		SpendUnconfirmed:   p.SpendUnconfirmed,
 		MinHtlcMsat:        int64(p.MinHtlc),
+		RemoteMaxHtlcs:     uint32(p.RemoteMaxHtlcs),
 		FundingShim:        p.FundingShim,
 	}
 

lntest/itest/lnd_test.go

@@ -4848,9 +4848,7 @@ func testListChannels(net *lntest.NetworkHarness, t *harnessTest) {
 	const bobRemoteMaxHtlcs = 100
 
 	// Create two fresh nodes and open a channel between them.
-	alice, err := net.NewNode("Alice", []string{
-		fmt.Sprintf("--default-remote-max-htlcs=%v", aliceRemoteMaxHtlcs),
-	})
+	alice, err := net.NewNode("Alice", nil)
 	if err != nil {
 		t.Fatalf("unable to create new node: %v", err)
 	}
@@ -4887,8 +4885,9 @@ func testListChannels(net *lntest.NetworkHarness, t *harnessTest) {
 	chanPoint := openChannelAndAssert(
 		ctxt, t, net, alice, bob,
 		lntest.OpenChannelParams{
-			Amt:     chanAmt,
-			MinHtlc: customizedMinHtlc,
+			Amt:            chanAmt,
+			MinHtlc:        customizedMinHtlc,
+			RemoteMaxHtlcs: aliceRemoteMaxHtlcs,
 		},
 	)