missing: move several network related entries to missing_network.h

src/basic/missing_network.h

@@ -116,6 +116,11 @@
 #define NET_NAME_RENAMED 4
 #endif
 
+/* netlink.h */
+#ifndef NETLINK_LIST_MEMBERSHIPS /* b42be38b2778eda2237fc759e55e3b698b05b315 (4.2) */
+#define NETLINK_LIST_MEMBERSHIPS 9
+#endif
+
 /* rtnetlink.h */
 #ifndef RTA_PREF
 #define RTA_PREF 20
@@ -128,3 +133,12 @@
 #ifndef RTA_EXPIRES
 #define RTA_EXPIRES 23
 #endif
+
+/* Note that LOOPBACK_IFINDEX is currently not exported by the
+ * kernel/glibc, but hardcoded internally by the kernel.  However, as
+ * it is exported to userspace indirectly via rtnetlink and the
+ * ioctls, and made use of widely we define it here too, in a way that
+ * is compatible with the kernel's internal definition. */
+#ifndef LOOPBACK_IFINDEX
+#define LOOPBACK_IFINDEX 1
+#endif