diff options
Diffstat (limited to 'sys/net/if_vlan.c')
| -rw-r--r-- | sys/net/if_vlan.c | 34 |
1 files changed, 21 insertions, 13 deletions
diff --git a/sys/net/if_vlan.c b/sys/net/if_vlan.c index 1225680..b79239c 100644 --- a/sys/net/if_vlan.c +++ b/sys/net/if_vlan.c @@ -192,7 +192,7 @@ static int vlan_setflags(struct ifnet *ifp, int status); static int vlan_setmulti(struct ifnet *ifp); static int vlan_transmit(struct ifnet *ifp, struct mbuf *m); static void vlan_unconfig(struct ifnet *ifp); -static void vlan_unconfig_locked(struct ifnet *ifp); +static void vlan_unconfig_locked(struct ifnet *ifp, int departing); static int vlan_config(struct ifvlan *ifv, struct ifnet *p, uint16_t tag); static void vlan_link_state(struct ifnet *ifp); static void vlan_capabilities(struct ifvlan *ifv); @@ -577,7 +577,7 @@ vlan_ifdetach(void *arg __unused, struct ifnet *ifp) #ifdef VLAN_ARRAY for (i = 0; i < VLAN_ARRAY_SIZE; i++) if ((ifv = ifp->if_vlantrunk->vlans[i])) { - vlan_unconfig_locked(ifv->ifv_ifp); + vlan_unconfig_locked(ifv->ifv_ifp, 1); if (ifp->if_vlantrunk == NULL) break; } @@ -585,7 +585,7 @@ vlan_ifdetach(void *arg __unused, struct ifnet *ifp) restart: for (i = 0; i < (1 << ifp->if_vlantrunk->hwidth); i++) if ((ifv = LIST_FIRST(&ifp->if_vlantrunk->hash[i]))) { - vlan_unconfig_locked(ifv->ifv_ifp); + vlan_unconfig_locked(ifv->ifv_ifp, 1); if (ifp->if_vlantrunk) goto restart; /* trunk->hwidth can change */ else @@ -968,7 +968,7 @@ vlan_clone_create(struct if_clone *ifc, char *name, size_t len, caddr_t params) error = vlan_config(ifv, p, vid); if (error != 0) { /* - * Since we've partialy failed, we need to back + * Since we've partially failed, we need to back * out all the way, otherwise userland could get * confused. Thus, we destroy the interface. */ @@ -1307,17 +1307,18 @@ vlan_unconfig(struct ifnet *ifp) { VLAN_LOCK(); - vlan_unconfig_locked(ifp); + vlan_unconfig_locked(ifp, 0); VLAN_UNLOCK(); } static void -vlan_unconfig_locked(struct ifnet *ifp) +vlan_unconfig_locked(struct ifnet *ifp, int departing) { struct ifvlantrunk *trunk; struct vlan_mc_entry *mc; struct ifvlan *ifv; struct ifnet *parent; + int error; VLAN_LOCK_ASSERT(); @@ -1337,14 +1338,21 @@ vlan_unconfig_locked(struct ifnet *ifp) */ while ((mc = SLIST_FIRST(&ifv->vlan_mc_listhead)) != NULL) { /* - * This may fail if the parent interface is - * being detached. Regardless, we should do a - * best effort to free this interface as much - * as possible as all callers expect vlan - * destruction to succeed. + * If the parent interface is being detached, + * all it's multicast addresses have already + * been removed. Warn about errors if + * if_delmulti() does fail, but don't abort as + * all callers expect vlan destruction to + * succeed. */ - (void)if_delmulti(parent, - (struct sockaddr *)&mc->mc_addr); + if (!departing) { + error = if_delmulti(parent, + (struct sockaddr *)&mc->mc_addr); + if (error) + if_printf(ifp, + "Failed to delete multicast address from parent: %d\n", + error); + } SLIST_REMOVE_HEAD(&ifv->vlan_mc_listhead, mc_entries); free(mc, M_VLAN); } |
