[PATCH v2] linux-user: add missing MULTICAST_IF get/setsockopt option

[Jiaxun Yang]

{IP,IPV6}_MULTICAST_IF was not supported.

Signed-off-by: Jiaxun Yang <jiaxun.y...@flygoat.com>
---
 linux-user/syscall.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 389ec09764..77343130b3 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -2219,6 +2219,7 @@ static abi_long do_setsockopt(int sockfd, int level, int 
optname,
 #ifdef IP_FREEBIND
         case IP_FREEBIND:
 #endif
+        case IP_MULTICAST_IF:
         case IP_MULTICAST_TTL:
         case IP_MULTICAST_LOOP:
             val = 0;
@@ -2265,6 +2266,7 @@ static abi_long do_setsockopt(int sockfd, int level, int 
optname,
         case IPV6_V6ONLY:
         case IPV6_RECVPKTINFO:
         case IPV6_UNICAST_HOPS:
+        case IPV6_MULTICAST_IF:
         case IPV6_MULTICAST_HOPS:
         case IPV6_MULTICAST_LOOP:
         case IPV6_RECVERR:
@@ -2891,6 +2893,7 @@ get_timeout:
 #ifdef IP_FREEBIND
         case IP_FREEBIND:
 #endif
+        case IP_MULTICAST_IF:
         case IP_MULTICAST_TTL:
         case IP_MULTICAST_LOOP:
             if (get_user_u32(len, optlen))
@@ -2926,6 +2929,7 @@ get_timeout:
         case IPV6_V6ONLY:
         case IPV6_RECVPKTINFO:
         case IPV6_UNICAST_HOPS:
+        case IPV6_MULTICAST_IF:
         case IPV6_MULTICAST_HOPS:
         case IPV6_MULTICAST_LOOP:
         case IPV6_RECVERR:
-- 
2.30.1