From 75b76438786d1242dffc51e2bdd80670414e4d03 Mon Sep 17 00:00:00 2001
From: Shu-Chun Weng <scw@google.com>
Date: Fri, 18 Dec 2020 11:32:12 -0800
Subject: [PATCH] linux-user: add missing IPv6 get/setsockopt option

IPV6_ADDR_PREFERENCES (RFC5014: Source address selection) was not supported.

Signed-off-by: Shu-Chun Weng <scw@google.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20201218193213.3566856-4-scw@google.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
---
 linux-user/syscall.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 969db2008104..70c61d15ebf8 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -51,6 +51,7 @@
 #include <sys/sysinfo.h>
 #include <sys/signalfd.h>
 //#include <sys/user.h>
+#include <netinet/in.h>
 #include <netinet/ip.h>
 #include <netinet/tcp.h>
 #include <netinet/udp.h>
@@ -2272,6 +2273,7 @@ static abi_long do_setsockopt(int sockfd, int level, int optname,
         case IPV6_RECVDSTOPTS:
         case IPV6_2292DSTOPTS:
         case IPV6_TCLASS:
+        case IPV6_ADDR_PREFERENCES:
 #ifdef IPV6_RECVPATHMTU
         case IPV6_RECVPATHMTU:
 #endif
@@ -2926,6 +2928,7 @@ static abi_long do_getsockopt(int sockfd, int level, int optname,
         case IPV6_RECVDSTOPTS:
         case IPV6_2292DSTOPTS:
         case IPV6_TCLASS:
+        case IPV6_ADDR_PREFERENCES:
 #ifdef IPV6_RECVPATHMTU
         case IPV6_RECVPATHMTU:
 #endif