RFC 8981 allows the configuration of only temporary IPv6 addresses.

Make the interface come up when the IFXF_AUTOCONF6TEMP is set.
OK kn

diff --git a/sys/net/if.c b/sys/net/if.c
index 0da3720..e5c5e65 100644 (file)
--- a/sys/net/if.c
+++ b/sys/net/if.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: if.c,v 1.638 2021/03/18 15:58:58 claudio Exp $        */
+/*     $OpenBSD: if.c,v 1.639 2021/03/20 17:08:57 florian Exp $        */
 /*     $NetBSD: if.c,v 1.35 1996/05/07 05:26:04 thorpej Exp $  */
 
 /*
@@ -1958,8 +1958,10 @@ ifioctl(struct socket *so, u_long cmd, caddr_t data, struct proc *p)
 
                NET_LOCK();
 #ifdef INET6
-               if (ISSET(ifr->ifr_flags, IFXF_AUTOCONF6) &&
-                   !ISSET(ifp->if_xflags, IFXF_AUTOCONF6)) {
+               if ((ISSET(ifr->ifr_flags, IFXF_AUTOCONF6) ||
+                   ISSET(ifr->ifr_flags, IFXF_AUTOCONF6TEMP)) &&
+                   !ISSET(ifp->if_xflags, IFXF_AUTOCONF6) &&
+                   !ISSET(ifp->if_xflags, IFXF_AUTOCONF6TEMP)) {
                        error = in6_ifattach(ifp);
                        if (error != 0) {
                                NET_UNLOCK();
@@ -2026,7 +2028,9 @@ ifioctl(struct socket *so, u_long cmd, caddr_t data, struct proc *p)
                    ((!ISSET(oif_xflags, IFXF_AUTOCONF4) &&
                    ISSET(ifp->if_xflags, IFXF_AUTOCONF4)) ||
                    (!ISSET(oif_xflags, IFXF_AUTOCONF6) &&
-                   ISSET(ifp->if_xflags, IFXF_AUTOCONF6)))) {
+                   ISSET(ifp->if_xflags, IFXF_AUTOCONF6)) ||
+                   (!ISSET(oif_xflags, IFXF_AUTOCONF6TEMP) &&
+                   ISSET(ifp->if_xflags, IFXF_AUTOCONF6TEMP)))) {
                        ifr->ifr_flags = ifp->if_flags | IFF_UP;
                        cmd = SIOCSIFFLAGS;
                        goto forceup;