From 2cbe61a73d861810b3cee4da6464b0e01d1399ae Mon Sep 17 00:00:00 2001
From: Luiz Otavio O Souza <loos@FreeBSD.org>
Date: Thu, 19 Aug 2021 11:48:04 +0200
Subject: [PATCH] rtsold: make it work on if_vlan interfaces

Reviewed by:	kp
Obtained from:	pfsense
MFC after:	1 week

(cherry picked from commit 1a4d7030bbfec0f830e87bf7c2810f049f8ca8ac)
---
 usr.sbin/rtsold/if.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/usr.sbin/rtsold/if.c b/usr.sbin/rtsold/if.c
index b2f2c640b17..0f7f2ce7cba 100644
--- a/usr.sbin/rtsold/if.c
+++ b/usr.sbin/rtsold/if.c
@@ -262,6 +262,7 @@ lladdropt_length(struct sockaddr_dl *sdl)
 {
 	switch (sdl->sdl_type) {
 	case IFT_ETHER:
+	case IFT_L2VLAN:
 		return (ROUNDUP8(ETHER_ADDR_LEN + 2));
 	default:
 		return (0);
@@ -277,6 +278,7 @@ lladdropt_fill(struct sockaddr_dl *sdl, struct nd_opt_hdr *ndopt)
 
 	switch (sdl->sdl_type) {
 	case IFT_ETHER:
+	case IFT_L2VLAN:
 		ndopt->nd_opt_len = (ROUNDUP8(ETHER_ADDR_LEN + 2)) >> 3;
 		addr = (char *)(ndopt + 1);
 		memcpy(addr, LLADDR(sdl), ETHER_ADDR_LEN);