swrap: Add IP_PKTINFO support in setsockopt.

Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>

diff --git a/lib/socket_wrapper/socket_wrapper.c b/lib/socket_wrapper/socket_wrapper.c
index 4bca74624a2130a4e80416c3e0f6e6f779933f0c..e1b69fa94b1d2cb6e83819432ad70890d8aed090 100644 (file)
--- a/lib/socket_wrapper/socket_wrapper.c
+++ b/lib/socket_wrapper/socket_wrapper.c
@@ -119,6 +119,12 @@ enum swrap_dbglvl_e {
 #define discard_const_p(type, ptr) ((type *)discard_const(ptr))
 #endif
 
+#ifdef IPV6_PKTINFO
+# ifndef IPV6_RECVPKTINFO
+#  define IPV6_RECVPKTINFO IPV6_PKTINFO
+# endif /* IPV6_RECVPKTINFO */
+#endif /* IPV6_PKTINFO */
+
 #define SWRAP_DLIST_ADD(list,item) do { \
        if (!(list)) { \
                (item)->prev    = NULL; \
@@ -199,6 +205,7 @@ struct socket_info
        int is_server;
        int connected;
        int defer_connect;
+       int pktinfo;
 
        char *tmp_path;
 
@@ -2872,9 +2879,23 @@ static int swrap_setsockopt(int s, int level, int optname,
 
        switch (si->family) {
        case AF_INET:
+               if (level == IPPROTO_IP) {
+#ifdef IP_PKTINFO
+                       if (optname == IP_PKTINFO) {
+                               si->pktinfo = AF_INET;
+                       }
+#endif /* IP_PKTINFO */
+               }
                return 0;
 #ifdef HAVE_IPV6
        case AF_INET6:
+               if (level == IPPROTO_IPV6) {
+#ifdef IPV6_RECVPKTINFO
+                       if (optname == IPV6_RECVPKTINFO) {
+                               si->pktinfo = AF_INET6;
+                       }
+#endif /* IPV6_PKTINFO */
+               }
                return 0;
 #endif
        default: