From 52989703f765721b02f28d4815438e0296f49d56 Mon Sep 17 00:00:00 2001
From: Peter Qiu <zqiu@chromium.org>
Date: Thu, 28 May 2015 13:53:48 -0700
Subject: [PATCH] Gracefully handle SO_REUSEPORT command failure

Change log level to error instead of fatal when SO_REUSEPORT command
failed, to allow "dhcpd -6" to run on a system without SO_REUSEPORT
support.

This option is only required for DHCPv6 to allow multiple daemons to
bind to their own sockets and get (multicast) data on their respective
interfaces.  On ChromeOS, dhcpd is used for testing purpose only
with one daemon instance running at a time. So this option is not
required on our system.

BUG=chromium:498437
TEST=Start a DHCPv6 server on a test image
     "dhcpd -6 -cf /tmp/dhcpd6.conf"
---
 common/socket.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/common/socket.c b/common/socket.c
index a48404b..5823eb0 100644
--- a/common/socket.c
+++ b/common/socket.c
@@ -226,7 +226,7 @@ if_register_socket(struct interface_info *info, int family,
 		flag = 1;
 		if (setsockopt(sock, SOL_SOCKET, SO_REUSEPORT,
 			       (char *)&flag, sizeof(flag)) < 0) {
-			log_fatal("Can't set SO_REUSEPORT option on dhcp "
+			log_error("Can't set SO_REUSEPORT option on dhcp "
 				  "socket: %m");
 		}
 	}
-- 
2.2.0.rc0.207.ga3a616c