[src/trunk]: src/sys/netinet6 nd6: notify userland of neighbour lla updates o...

[roy <roy%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/e7ed81ca3e7f
branches:  trunk
changeset: 459067:e7ed81ca3e7f
user:      roy <roy%NetBSD.org@localhost>
date:      Thu Aug 22 21:22:50 2019 +0000

description:
nd6: notify userland of neighbour lla updates once more

XXX pullup -8 -9

diffstat:

 sys/netinet6/nd6.c     |  21 ++++++++++++++-------
 sys/netinet6/nd6_nbr.c |  16 +++++++++-------
 2 files changed, 23 insertions(+), 14 deletions(-)

diffs (93 lines):

diff -r c0d71597b726 -r e7ed81ca3e7f sys/netinet6/nd6.c
--- a/sys/netinet6/nd6.c        Thu Aug 22 21:14:45 2019 +0000
+++ b/sys/netinet6/nd6.c        Thu Aug 22 21:22:50 2019 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: nd6.c,v 1.258 2019/08/22 21:14:46 roy Exp $    */
+/*     $NetBSD: nd6.c,v 1.259 2019/08/22 21:22:50 roy Exp $    */
 /*     $KAME: nd6.c,v 1.279 2002/06/08 11:16:51 itojun Exp $   */
 
 /*
@@ -31,7 +31,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: nd6.c,v 1.258 2019/08/22 21:14:46 roy Exp $");
+__KERNEL_RCSID(0, "$NetBSD: nd6.c,v 1.259 2019/08/22 21:22:50 roy Exp $");
 
 #ifdef _KERNEL_OPT
 #include "opt_net_mpsafe.h"
@@ -1192,6 +1192,7 @@
        struct nd_defrouter *dr;
        struct ifnet *ifp;
        struct in6_addr *in6;
+       struct sockaddr_in6 sin6;
 
        KASSERT(ln != NULL);
        LLE_WLOCK_ASSERT(ln);
@@ -1293,6 +1294,10 @@
                        LLE_WLOCK(ln);
        }
 
+       sockaddr_in6_init(&sin6, in6, 0, 0, 0);
+       rt_clonedmsg(RTM_DELETE, sin6tosa(&sin6),
+           (const uint8_t *)&ln->ll_addr, ifp);
+
        /*
         * Save to unlock. We still hold an extra reference and will not
         * free(9) in llentry_free() if someone else holds one as well.
@@ -2225,11 +2230,13 @@
                break;
        }
 
-#if 0
-       /* XXX should we send rtmsg as it used to be? */
-       if (do_update)
-               rt_newmsg(RTM_CHANGE, rt);  /* tell user process */
-#endif
+       if (do_update) {
+               struct sockaddr_in6 sin6;
+
+               sockaddr_in6_init(&sin6, from, 0, 0, 0);
+               rt_clonedmsg(is_newentry ? RTM_ADD : RTM_CHANGE,
+                   sin6tosa(&sin6), lladdr, ifp);
+       }
 
        if (ln != NULL) {
                router = ln->ln_router;
diff -r c0d71597b726 -r e7ed81ca3e7f sys/netinet6/nd6_nbr.c
--- a/sys/netinet6/nd6_nbr.c    Thu Aug 22 21:14:45 2019 +0000
+++ b/sys/netinet6/nd6_nbr.c    Thu Aug 22 21:22:50 2019 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: nd6_nbr.c,v 1.166 2019/04/29 16:12:30 roy Exp $        */
+/*     $NetBSD: nd6_nbr.c,v 1.167 2019/08/22 21:22:50 roy Exp $        */
 /*     $KAME: nd6_nbr.c,v 1.61 2001/02/10 16:06:14 jinmei Exp $        */
 
 /*
@@ -31,7 +31,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: nd6_nbr.c,v 1.166 2019/04/29 16:12:30 roy Exp $");
+__KERNEL_RCSID(0, "$NetBSD: nd6_nbr.c,v 1.167 2019/08/22 21:22:50 roy Exp $");
 
 #ifdef _KERNEL_OPT
 #include "opt_inet.h"
@@ -883,11 +883,13 @@
         */
        ln->ln_asked = 0;
        nd6_llinfo_release_pkts(ln, ifp);
-       /* FIXME */
-#if 0
-       if (rt_announce) /* tell user process about any new lladdr */
-               rt_newmsg(RTM_CHANGE, rt);
-#endif
+
+       if (rt_announce) {
+               struct sockaddr_in6 sin6;
+
+               sockaddr_in6_init(&sin6, &taddr6, 0, 0, 0);
+               rt_clonedmsg(RTM_CHANGE, sin6tosa(&sin6), lladdr, ifp);
+       }
 
  freeit:
        if (ln != NULL)