From bb5de1714ecfb21d63936c22bc4602c8827d2e7c Mon Sep 17 00:00:00 2001
From: Roy Marples <roy@marples.name>
Date: Sun, 27 Dec 2020 21:59:32 +0000
Subject: [PATCH] dhcpcd: Don't roam when anonymous is set

We can now remove the NOCARRIER_PRESERVE_IP define.
---
 src/dhcpcd.c | 13 ++-----------
 src/if.h     |  8 --------
 2 files changed, 2 insertions(+), 19 deletions(-)

diff --git a/src/dhcpcd.c b/src/dhcpcd.c
index 42882c2c..13480b48 100644
--- a/src/dhcpcd.c
+++ b/src/dhcpcd.c
@@ -734,21 +734,12 @@ dhcpcd_handlecarrier(struct interface *ifp, int carrier, unsigned int flags)
 		 * Preserve the network state until we either disconnect
 		 * or re-connect.
 		 */
-		if (if_roaming(ifp)) {
-			dhcpcd_nocarrier_roaming(ifp);
-			return;
-		}
-
-#ifdef NOCARRIER_PRESERVE_IP
-		if (ifp->flags & IFF_UP &&
-		    !(ifp->options->options & DHCPCD_ANONYMOUS))
+		if (!(ifp->options->options & DHCPCD_ANONYMOUS) &&
+		    if_roaming(ifp))
 		{
-			/* This OS supports the roaming concept on any
-			 * interface. */
 			dhcpcd_nocarrier_roaming(ifp);
 			return;
 		}
-#endif
 
 		loginfox("%s: carrier lost", ifp->name);
 		script_runreason(ifp, "NOCARRIER");
diff --git a/src/if.h b/src/if.h
index 9a2f262a..43d13307 100644
--- a/src/if.h
+++ b/src/if.h
@@ -42,14 +42,6 @@
  * dhcpcd can poll it for the relevant flags periodically */
 #define IF_POLL_UP	100	/* milliseconds */
 
-/* Some systems have in-built IPv4 DAD.
- * However, we need them to do DAD at carrier up as well. */
-#ifdef IN_IFF_TENTATIVE
-#  ifdef __NetBSD__
-#    define NOCARRIER_PRESERVE_IP
-#  endif
-#endif
-
 /*
  * Systems which handle 1 address per alias.
  * Currenly this is just Solaris.
-- 
2.47.2