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[src/trunk]: src/sys carp: Register carp_carpdev_state to link-state change hook



details:   https://anonhg.NetBSD.org/src/rev/c82ae03c4e2f
branches:  trunk
changeset: 1023870:c82ae03c4e2f
user:      yamaguchi <yamaguchi%NetBSD.org@localhost>
date:      Thu Sep 30 03:43:25 2021 +0000

description:
carp: Register carp_carpdev_state to link-state change hook

diffstat:

 sys/net/if.c          |   9 ++-------
 sys/netinet/ip_carp.c |  22 ++++++++++++++--------
 2 files changed, 16 insertions(+), 15 deletions(-)

diffs (98 lines):

diff -r a74b99893434 -r c82ae03c4e2f sys/net/if.c
--- a/sys/net/if.c      Thu Sep 30 03:39:39 2021 +0000
+++ b/sys/net/if.c      Thu Sep 30 03:43:25 2021 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: if.c,v 1.494 2021/09/30 03:39:39 yamaguchi Exp $       */
+/*     $NetBSD: if.c,v 1.495 2021/09/30 03:43:25 yamaguchi Exp $       */
 
 /*-
  * Copyright (c) 1999, 2000, 2001, 2008 The NetBSD Foundation, Inc.
@@ -90,7 +90,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: if.c,v 1.494 2021/09/30 03:39:39 yamaguchi Exp $");
+__KERNEL_RCSID(0, "$NetBSD: if.c,v 1.495 2021/09/30 03:43:25 yamaguchi Exp $");
 
 #if defined(_KERNEL_OPT)
 #include "opt_inet.h"
@@ -2397,11 +2397,6 @@
        /* Notify that the link state has changed. */
        rt_ifmsg(ifp);
 
-#if NCARP > 0
-       if (ifp->if_carp)
-               carp_carpdev_state(ifp);
-#endif
-
        if (ifp->if_link_state_changed != NULL)
                ifp->if_link_state_changed(ifp, link_state);
 
diff -r a74b99893434 -r c82ae03c4e2f sys/netinet/ip_carp.c
--- a/sys/netinet/ip_carp.c     Thu Sep 30 03:39:39 2021 +0000
+++ b/sys/netinet/ip_carp.c     Thu Sep 30 03:43:25 2021 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: ip_carp.c,v 1.115 2021/06/16 00:21:19 riastradh Exp $  */
+/*     $NetBSD: ip_carp.c,v 1.116 2021/09/30 03:43:25 yamaguchi Exp $  */
 /*     $OpenBSD: ip_carp.c,v 1.113 2005/11/04 08:11:54 mcbride Exp $   */
 
 /*
@@ -33,7 +33,7 @@
 #endif
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: ip_carp.c,v 1.115 2021/06/16 00:21:19 riastradh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: ip_carp.c,v 1.116 2021/09/30 03:43:25 yamaguchi Exp $");
 
 /*
  * TODO:
@@ -113,6 +113,7 @@
        struct ethercom sc_ac;
 #define        sc_if           sc_ac.ec_if
 #define        sc_carpdev      sc_ac.ec_if.if_carpdev
+       void *sc_linkstate_hook;
        int ah_cookie;
        int lh_cookie;
        struct ip_moptions sc_imo;
@@ -907,6 +908,7 @@
 static void
 carpdetach(struct carp_softc *sc)
 {
+       struct ifnet *ifp;
        struct carp_if *cif;
        int s;
 
@@ -929,13 +931,16 @@
 
        KERNEL_LOCK(1, NULL);
        s = splnet();
-       if (sc->sc_carpdev != NULL) {
-               /* XXX linkstatehook removal */
-               cif = (struct carp_if *)sc->sc_carpdev->if_carp;
+       ifp = sc->sc_carpdev;
+       if (ifp != NULL) {
+               if_linkstate_change_disestablish(ifp,
+                   sc->sc_linkstate_hook, NULL);
+
+               cif = (struct carp_if *)ifp->if_carp;
                TAILQ_REMOVE(&cif->vhif_vrs, sc, sc_list);
                if (!--cif->vhif_nvrs) {
-                       ifpromisc(sc->sc_carpdev, 0);
-                       sc->sc_carpdev->if_carp = NULL;
+                       ifpromisc(ifp, 0);
+                       ifp->if_carp = NULL;
                        free(cif, M_IFADDR);
                }
        }
@@ -1708,9 +1713,10 @@
                if (sc->sc_naddrs || sc->sc_naddrs6)
                        sc->sc_if.if_flags |= IFF_UP;
                carp_set_enaddr(sc);
+               sc->sc_linkstate_hook = if_linkstate_change_establish(ifp,
+                   carp_carpdev_state, (void *)ifp);
                KERNEL_LOCK(1, NULL);
                s = splnet();
-               /* XXX linkstatehooks establish */
                carp_carpdev_state(ifp);
                splx(s);
                KERNEL_UNLOCK_ONE(NULL);



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