The branch main has been updated by glebius: URL: https://cgit.FreeBSD.org/src/commit/?id=349fcf079ca32d5c93e45366d2b27638747affeb
commit 349fcf079ca32d5c93e45366d2b27638747affeb Author: Gleb Smirnoff <[email protected]> AuthorDate: 2025-12-21 21:31:43 +0000 Commit: Gleb Smirnoff <[email protected]> CommitDate: 2025-12-22 02:23:14 +0000 net: add ifnet_rename_event EVENTHANDLER(9) for interface renaming and don't trigger ifnet_arrival_event and ifnet_departure_event for a rename, as the interface isn't being detached from any protocol. The consumers of the arrival/departure events are divided into a few categories: - which indeed need to do the same actions as if interface was fully detached and attached: routing socket and netlink notifications to userland and the Linux sysfs. All addressed by this commit. - which build their logic based on an interface name, but should actually update their database on rename: packet filters. This commit leaves them with the old behavior - emulate full detach & attach, but this should be improved. - which shouldn't do anything on rename, not touched by the commit. - ng_ether and if_tuntap, that are special and will be addressed by separate commits. --- sys/compat/linsysfs/linsysfs_net.c | 15 +++++++- sys/net/if.c | 4 +-- sys/net/if_var.h | 11 ++++-- sys/net/rtsock.c | 28 ++++++++++----- sys/netlink/route/iface.c | 36 ++++++++++++++------ sys/netpfil/ipfilter/netinet/ip_fil_freebsd.c | 8 +++++ sys/netpfil/ipfw/ip_fw_iface.c | 49 +++++++++++++++++---------- sys/netpfil/pf/pf_if.c | 12 +++++++ 8 files changed, 118 insertions(+), 45 deletions(-) diff --git a/sys/compat/linsysfs/linsysfs_net.c b/sys/compat/linsysfs/linsysfs_net.c index 7439b0b4fdc0..dcc498e4e1ae 100644 --- a/sys/compat/linsysfs/linsysfs_net.c +++ b/sys/compat/linsysfs/linsysfs_net.c @@ -45,7 +45,7 @@ #include <compat/linsysfs/linsysfs.h> struct pfs_node *net; -static eventhandler_tag if_arrival_tag, if_departure_tag; +static eventhandler_tag if_arrival_tag, if_departure_tag, if_rename_tag; static uint32_t net_latch_count = 0; static struct mtx net_latch_mtx; @@ -312,6 +312,16 @@ linsysfs_if_departure(void *arg __unused, if_t ifp) linsysfs_net_latch_rele(); } +static void +linsysfs_if_rename(void *arg __unused, if_t ifp) +{ + + linsysfs_net_latch_hold(); + linsysfs_net_delif(ifp); + (void)linsysfs_net_addif(ifp, net); + linsysfs_net_latch_rele(); +} + void linsysfs_net_init(void) { @@ -324,6 +334,8 @@ linsysfs_net_init(void) linsysfs_if_arrival, NULL, EVENTHANDLER_PRI_ANY); if_departure_tag = EVENTHANDLER_REGISTER(ifnet_departure_event, linsysfs_if_departure, NULL, EVENTHANDLER_PRI_ANY); + if_rename_tag = EVENTHANDLER_REGISTER(ifnet_rename_event, + linsysfs_if_rename, NULL, EVENTHANDLER_PRI_ANY); linsysfs_net_latch_hold(); VNET_LIST_RLOCK(); @@ -343,6 +355,7 @@ linsysfs_net_uninit(void) EVENTHANDLER_DEREGISTER(ifnet_arrival_event, if_arrival_tag); EVENTHANDLER_DEREGISTER(ifnet_departure_event, if_departure_tag); + EVENTHANDLER_DEREGISTER(ifnet_rename_event, if_rename_tag); linsysfs_net_latch_hold(); TAILQ_FOREACH_SAFE(nq, &ifp_nodes_q, ifp_nodes_next, nq_tmp) { diff --git a/sys/net/if.c b/sys/net/if.c index 3394aa90127f..1dea00da3cf2 100644 --- a/sys/net/if.c +++ b/sys/net/if.c @@ -3035,8 +3035,6 @@ if_rename(struct ifnet *ifp, char *new_name) */ ifp->if_flags |= IFF_RENAMING; - EVENTHANDLER_INVOKE(ifnet_departure_event, ifp); - if_printf(ifp, "changing name to '%s'\n", new_name); IF_ADDR_WLOCK(ifp); @@ -3063,7 +3061,7 @@ if_rename(struct ifnet *ifp, char *new_name) sdl->sdl_data[--namelen] = 0xff; IF_ADDR_WUNLOCK(ifp); - EVENTHANDLER_INVOKE(ifnet_arrival_event, ifp); + EVENTHANDLER_INVOKE(ifnet_rename_event, ifp, old_name); ifp->if_flags &= ~IFF_RENAMING; diff --git a/sys/net/if_var.h b/sys/net/if_var.h index 4fb51aca0cd7..3c65b2b4d2d8 100644 --- a/sys/net/if_var.h +++ b/sys/net/if_var.h @@ -361,19 +361,24 @@ EVENTHANDLER_DECLARE(ifaddr_event_ext, ifaddr_event_ext_handler_t); /* * Interface arrival & departure events. - * The ifnet_arrival_event is executed before the is yet globally visible. - * Protocols shall use this event to attach themselves. Protocols shall not - * expect other protocols to be fully attached. + * The ifnet_arrival_event is executed before the interface is yet globally + * visible. Protocols shall use this event to attach themselves. Protocols + * shall not expect other protocols to be fully attached. * The ifnet_attached_event is executed after the interface is attached to all * protocols, is globally visible and fully functional. * The ifnet_departure_event is complementary to ifnet_arrival_event. The * interface is no longer globally visible, protocols may detach. * XXXGL: immediate memory reclamation may not be safe in ifnet_departure_event. + * The ifnet_rename_event is executed after an interface is renamed. The + * handlers would see the new name of the interface, and are also passed with + * old name in the argument. */ typedef void (*ifnet_event_handler_t)(void *, if_t); EVENTHANDLER_DECLARE(ifnet_arrival_event, ifnet_event_handler_t); EVENTHANDLER_DECLARE(ifnet_attached_event, ifnet_event_handler_t); EVENTHANDLER_DECLARE(ifnet_departure_event, ifnet_event_handler_t); +typedef void (*ifnet_rename_event_handler_t)(void *, if_t, const char *); +EVENTHANDLER_DECLARE(ifnet_rename_event, ifnet_rename_event_handler_t); /* Interface link state change event */ typedef void (*ifnet_link_event_handler_t)(void *, if_t, int); diff --git a/sys/net/rtsock.c b/sys/net/rtsock.c index 82af92545b79..774537366910 100644 --- a/sys/net/rtsock.c +++ b/sys/net/rtsock.c @@ -208,7 +208,7 @@ static int sysctl_ifmalist(int af, struct walkarg *w); static void rt_getmetrics(const struct rtentry *rt, const struct nhop_object *nh, struct rt_metrics *out); static void rt_dispatch(struct mbuf *, sa_family_t); -static void rt_ifannouncemsg(struct ifnet *ifp, int what); +static void rt_ifannouncemsg(struct ifnet *, int, const char *); static int handle_rtm_get(struct rt_addrinfo *info, u_int fibnum, struct rt_msghdr *rtm, struct rib_cmd_info *rc); static int update_rtm_from_rc(struct rt_addrinfo *info, @@ -319,17 +319,26 @@ SYSINIT(rtsock_init, SI_SUB_PROTO_DOMAIN, SI_ORDER_THIRD, rtsock_init, NULL); static void rts_ifnet_attached(void *arg __unused, struct ifnet *ifp) { - rt_ifannouncemsg(ifp, IFAN_ARRIVAL); + rt_ifannouncemsg(ifp, IFAN_ARRIVAL, NULL); } EVENTHANDLER_DEFINE(ifnet_attached_event, rts_ifnet_attached, NULL, 0); static void rts_handle_ifnet_departure(void *arg __unused, struct ifnet *ifp) { - rt_ifannouncemsg(ifp, IFAN_DEPARTURE); + rt_ifannouncemsg(ifp, IFAN_DEPARTURE, NULL); } EVENTHANDLER_DEFINE(ifnet_departure_event, rts_handle_ifnet_departure, NULL, 0); +static void +rts_handle_ifnet_rename(void *arg __unused, struct ifnet *ifp, + const char *old_name) +{ + rt_ifannouncemsg(ifp, IFAN_DEPARTURE, old_name); + rt_ifannouncemsg(ifp, IFAN_ARRIVAL, NULL); +} +EVENTHANDLER_DEFINE(ifnet_rename_event, rts_handle_ifnet_rename, NULL, 0); + static void rts_append_data(struct socket *so, struct mbuf *m) { @@ -2143,7 +2152,7 @@ rt_newmaddrmsg(int cmd, struct ifmultiaddr *ifma) static struct mbuf * rt_makeifannouncemsg(struct ifnet *ifp, int type, int what, - struct rt_addrinfo *info) + struct rt_addrinfo *info, const char *ifname) { struct if_announcemsghdr *ifan; struct mbuf *m; @@ -2155,8 +2164,9 @@ rt_makeifannouncemsg(struct ifnet *ifp, int type, int what, if (m != NULL) { ifan = mtod(m, struct if_announcemsghdr *); ifan->ifan_index = ifp->if_index; - strlcpy(ifan->ifan_name, ifp->if_xname, - sizeof(ifan->ifan_name)); + strlcpy(ifan->ifan_name, + ifname != NULL ? ifname : ifp->if_xname, + sizeof(ifan->ifan_name)); ifan->ifan_what = what; } return m; @@ -2173,7 +2183,7 @@ rt_ieee80211msg(struct ifnet *ifp, int what, void *data, size_t data_len) struct mbuf *m; struct rt_addrinfo info; - m = rt_makeifannouncemsg(ifp, RTM_IEEE80211, what, &info); + m = rt_makeifannouncemsg(ifp, RTM_IEEE80211, what, &info, NULL); if (m != NULL) { /* * Append the ieee80211 data. Try to stick it in the @@ -2207,12 +2217,12 @@ rt_ieee80211msg(struct ifnet *ifp, int what, void *data, size_t data_len) * network interface arrival and departure. */ static void -rt_ifannouncemsg(struct ifnet *ifp, int what) +rt_ifannouncemsg(struct ifnet *ifp, int what, const char *ifname) { struct mbuf *m; struct rt_addrinfo info; - m = rt_makeifannouncemsg(ifp, RTM_IFANNOUNCE, what, &info); + m = rt_makeifannouncemsg(ifp, RTM_IFANNOUNCE, what, &info, ifname); if (m != NULL) rt_dispatch(m, AF_UNSPEC); } diff --git a/sys/netlink/route/iface.c b/sys/netlink/route/iface.c index 29a9a89fd20c..e9c053015fad 100644 --- a/sys/netlink/route/iface.c +++ b/sys/netlink/route/iface.c @@ -70,7 +70,8 @@ struct netlink_walkargs { int dumped; }; -static eventhandler_tag ifdetach_event, ifattach_event, iflink_event, ifaddr_event; +static eventhandler_tag ifdetach_event, ifattach_event, ifrename_event, + iflink_event, ifaddr_event; static SLIST_HEAD(, nl_cloner) nl_cloners = SLIST_HEAD_INITIALIZER(nl_cloners); @@ -288,7 +289,7 @@ dump_iface_caps(struct nl_writer *nw, struct ifnet *ifp) */ static bool dump_iface(struct nl_writer *nw, if_t ifp, const struct nlmsghdr *hdr, - int if_flags_mask) + int if_flags_mask, const char *ifname) { struct epoch_tracker et; struct ifinfomsg *ifinfo; @@ -312,7 +313,8 @@ dump_iface(struct nl_writer *nw, if_t ifp, const struct nlmsghdr *hdr, if (ifs.ifla_operstate == IF_OPER_UP) ifinfo->ifi_flags |= IFF_LOWER_UP; - nlattr_add_string(nw, IFLA_IFNAME, if_name(ifp)); + nlattr_add_string(nw, IFLA_IFNAME, + ifname != NULL ? ifname : if_name(ifp)); nlattr_add_u8(nw, IFLA_OPERSTATE, ifs.ifla_operstate); nlattr_add_u8(nw, IFLA_CARRIER, ifs.ifla_carrier); @@ -438,7 +440,7 @@ static int dump_cb(if_t ifp, void *_arg) { struct netlink_walkargs *wa = (struct netlink_walkargs *)_arg; - if (!dump_iface(wa->nw, ifp, &wa->hdr, 0)) + if (!dump_iface(wa->nw, ifp, &wa->hdr, 0, NULL)) return (ENOMEM); return (0); } @@ -488,7 +490,7 @@ rtnl_handle_getlink(struct nlmsghdr *hdr, struct nlpcb *nlp, struct nl_pstate *n if (ifp != NULL) { if (match_iface(ifp, &attrs)) { - if (!dump_iface(wa.nw, ifp, &wa.hdr, 0)) + if (!dump_iface(wa.nw, ifp, &wa.hdr, 0, NULL)) error = ENOMEM; } else error = ENODEV; @@ -1399,7 +1401,8 @@ rtnl_handle_ifaddr(void *arg __unused, struct ifaddr *ifa, int cmd) } static void -rtnl_handle_ifevent(if_t ifp, int nlmsg_type, int if_flags_mask) +rtnl_handle_ifevent(if_t ifp, int nlmsg_type, int if_flags_mask, + const char *ifname) { struct nlmsghdr hdr = { .nlmsg_type = nlmsg_type }; struct nl_writer nw; @@ -1409,7 +1412,7 @@ rtnl_handle_ifevent(if_t ifp, int nlmsg_type, int if_flags_mask) NL_LOG(LOG_DEBUG, "error allocating group writer"); return; } - dump_iface(&nw, ifp, &hdr, if_flags_mask); + dump_iface(&nw, ifp, &hdr, if_flags_mask, ifname); nlmsg_flush(&nw); } @@ -1417,28 +1420,35 @@ static void rtnl_handle_ifattach(void *arg, if_t ifp) { NL_LOG(LOG_DEBUG2, "ifnet %s", if_name(ifp)); - rtnl_handle_ifevent(ifp, NL_RTM_NEWLINK, 0); + rtnl_handle_ifevent(ifp, NL_RTM_NEWLINK, 0, NULL); } static void rtnl_handle_ifdetach(void *arg, if_t ifp) { NL_LOG(LOG_DEBUG2, "ifnet %s", if_name(ifp)); - rtnl_handle_ifevent(ifp, NL_RTM_DELLINK, 0); + rtnl_handle_ifevent(ifp, NL_RTM_DELLINK, 0, NULL); +} + +static void +rtnl_handle_ifrename(void *arg, if_t ifp, const char *old_name) +{ + rtnl_handle_ifevent(ifp, NL_RTM_DELLINK, 0, old_name); + rtnl_handle_ifevent(ifp, NL_RTM_NEWLINK, 0, NULL); } static void rtnl_handle_iflink(void *arg, if_t ifp, int link_state __unused) { NL_LOG(LOG_DEBUG2, "ifnet %s", if_name(ifp)); - rtnl_handle_ifevent(ifp, NL_RTM_NEWLINK, 0); + rtnl_handle_ifevent(ifp, NL_RTM_NEWLINK, 0, NULL); } void rtnl_handle_ifnet_event(if_t ifp, int if_flags_mask) { NL_LOG(LOG_DEBUG2, "ifnet %s", if_name(ifp)); - rtnl_handle_ifevent(ifp, NL_RTM_NEWLINK, if_flags_mask); + rtnl_handle_ifevent(ifp, NL_RTM_NEWLINK, if_flags_mask, NULL); } static const struct rtnl_cmd_handler cmd_handlers[] = { @@ -1513,6 +1523,9 @@ rtnl_ifaces_init(void) ifdetach_event = EVENTHANDLER_REGISTER( ifnet_departure_event, rtnl_handle_ifdetach, NULL, EVENTHANDLER_PRI_ANY); + ifrename_event = EVENTHANDLER_REGISTER( + ifnet_rename_event, rtnl_handle_ifrename, NULL, + EVENTHANDLER_PRI_ANY); ifaddr_event = EVENTHANDLER_REGISTER( rt_addrmsg, rtnl_handle_ifaddr, NULL, EVENTHANDLER_PRI_ANY); @@ -1528,6 +1541,7 @@ rtnl_ifaces_destroy(void) { EVENTHANDLER_DEREGISTER(ifnet_arrival_event, ifattach_event); EVENTHANDLER_DEREGISTER(ifnet_departure_event, ifdetach_event); + EVENTHANDLER_DEREGISTER(ifnet_rename_event, ifrename_event); EVENTHANDLER_DEREGISTER(rt_addrmsg, ifaddr_event); EVENTHANDLER_DEREGISTER(ifnet_link_event, iflink_event); } diff --git a/sys/netpfil/ipfilter/netinet/ip_fil_freebsd.c b/sys/netpfil/ipfilter/netinet/ip_fil_freebsd.c index 207d1895dc3e..331fc454ca51 100644 --- a/sys/netpfil/ipfilter/netinet/ip_fil_freebsd.c +++ b/sys/netpfil/ipfilter/netinet/ip_fil_freebsd.c @@ -95,8 +95,10 @@ VNET_DEFINE(ipf_main_softc_t, ipfmain) = { VNET_DEFINE_STATIC(eventhandler_tag, ipf_arrivetag); VNET_DEFINE_STATIC(eventhandler_tag, ipf_departtag); +VNET_DEFINE_STATIC(eventhandler_tag, ipf_renametag); #define V_ipf_arrivetag VNET(ipf_arrivetag) #define V_ipf_departtag VNET(ipf_departtag) +#define V_ipf_renametag VNET(ipf_renametag) static void ipf_ifevent(void *arg, struct ifnet *ifp); @@ -1349,6 +1351,9 @@ ipf_event_reg(void) V_ipf_departtag = EVENTHANDLER_REGISTER(ifnet_departure_event, \ ipf_ifevent, NULL, \ EVENTHANDLER_PRI_ANY); + V_ipf_renametag = EVENTHANDLER_REGISTER(ifnet_rename_event, \ + ipf_ifevent, NULL, \ + EVENTHANDLER_PRI_ANY); } void @@ -1360,6 +1365,9 @@ ipf_event_dereg(void) if (V_ipf_departtag != NULL) { EVENTHANDLER_DEREGISTER(ifnet_departure_event, V_ipf_departtag); } + if (V_ipf_renametag != NULL) { + EVENTHANDLER_DEREGISTER(ifnet_rename_event, V_ipf_renametag); + } } diff --git a/sys/netpfil/ipfw/ip_fw_iface.c b/sys/netpfil/ipfw/ip_fw_iface.c index 3c648feecba4..71a25e84ec2b 100644 --- a/sys/netpfil/ipfw/ip_fw_iface.c +++ b/sys/netpfil/ipfw/ip_fw_iface.c @@ -77,12 +77,13 @@ static struct ipfw_sopt_handler scodes[] = { /* * FreeBSD Kernel interface. */ -static void ipfw_kifhandler(void *arg, struct ifnet *ifp); +static void ipfw_kifhandler(void *, struct ifnet *, const char *); static int ipfw_kiflookup(char *name); static void iface_khandler_register(void); static void iface_khandler_deregister(void); -static eventhandler_tag ipfw_ifdetach_event, ipfw_ifattach_event; +static eventhandler_tag ipfw_ifdetach_event, ipfw_ifattach_event, + ipfw_rename_event; static int num_vnets = 0; static struct mtx vnet_mtx; @@ -90,19 +91,21 @@ static struct mtx vnet_mtx; * Checks if kernel interface is contained in our tracked * interface list and calls attach/detach handler. */ +enum ifevent { ARRIVAL, DEPARTURE, RENAME }; static void -ipfw_kifhandler(void *arg, struct ifnet *ifp) +ipfw_kifhandler(void *arg, struct ifnet *ifp, const char *old_name) { + enum ifevent *what = arg; struct ip_fw_chain *ch; struct ipfw_iface *iif; struct namedobj_instance *ii; - uintptr_t htype; + + MPASS(*what != RENAME || old_name != NULL); if (V_ipfw_vnet_ready == 0) return; ch = &V_layer3_chain; - htype = (uintptr_t)arg; IPFW_UH_WLOCK(ch); ii = CHAIN_TO_II(ch); @@ -111,12 +114,23 @@ ipfw_kifhandler(void *arg, struct ifnet *ifp) return; } iif = (struct ipfw_iface*)ipfw_objhash_lookup_name(ii, 0, - if_name(ifp)); + *what == RENAME ? old_name : if_name(ifp)); if (iif != NULL) { - if (htype == 1) + switch (*what) { + case ARRIVAL: handle_ifattach(ch, iif, ifp->if_index); - else + break; + case DEPARTURE: + handle_ifdetach(ch, iif, ifp->if_index); + break; + case RENAME: + /* + * XXXGL: should be handled better. + */ handle_ifdetach(ch, iif, ifp->if_index); + handle_ifattach(ch, iif, ifp->if_index); + break; + } } IPFW_UH_WUNLOCK(ch); } @@ -143,12 +157,12 @@ iface_khandler_register(void) printf("IPFW: starting up interface tracker\n"); - ipfw_ifdetach_event = EVENTHANDLER_REGISTER( - ifnet_departure_event, ipfw_kifhandler, NULL, - EVENTHANDLER_PRI_ANY); - ipfw_ifattach_event = EVENTHANDLER_REGISTER( - ifnet_arrival_event, ipfw_kifhandler, (void*)((uintptr_t)1), - EVENTHANDLER_PRI_ANY); + ipfw_ifdetach_event = EVENTHANDLER_REGISTER(ifnet_departure_event, + ipfw_kifhandler, (void*)(uintptr_t)DEPARTURE, EVENTHANDLER_PRI_ANY); + ipfw_ifattach_event = EVENTHANDLER_REGISTER(ifnet_arrival_event, + ipfw_kifhandler, (void*)(uintptr_t)ARRIVAL, EVENTHANDLER_PRI_ANY); + ipfw_rename_event = EVENTHANDLER_REGISTER(ifnet_rename_event, + ipfw_kifhandler, (void*)(uintptr_t)RENAME, EVENTHANDLER_PRI_ANY); } /* @@ -171,10 +185,9 @@ iface_khandler_deregister(void) if (destroy == 0) return; - EVENTHANDLER_DEREGISTER(ifnet_arrival_event, - ipfw_ifattach_event); - EVENTHANDLER_DEREGISTER(ifnet_departure_event, - ipfw_ifdetach_event); + EVENTHANDLER_DEREGISTER(ifnet_arrival_event, ipfw_ifattach_event); + EVENTHANDLER_DEREGISTER(ifnet_departure_event, ipfw_ifdetach_event); + EVENTHANDLER_DEREGISTER(ifnet_rename_event, ipfw_rename_event); } /* diff --git a/sys/netpfil/pf/pf_if.c b/sys/netpfil/pf/pf_if.c index 2d85a553fb5a..5288de3d78a0 100644 --- a/sys/netpfil/pf/pf_if.c +++ b/sys/netpfil/pf/pf_if.c @@ -76,6 +76,7 @@ VNET_DEFINE(struct pfi_kkif *, pf_kifmarker); static eventhandler_tag pfi_attach_cookie; static eventhandler_tag pfi_detach_cookie; +static eventhandler_tag pfi_rename_cookie; static eventhandler_tag pfi_attach_group_cookie; static eventhandler_tag pfi_change_group_cookie; static eventhandler_tag pfi_detach_group_cookie; @@ -95,6 +96,7 @@ static int pfi_skip_if(const char *, struct pfi_kkif *); static int pfi_unmask(void *); static void pfi_attach_ifnet_event(void * __unused, struct ifnet *); static void pfi_detach_ifnet_event(void * __unused, struct ifnet *); +static void pfi_rename_ifnet_event(void * __unused, struct ifnet *); static void pfi_attach_group_event(void * __unused, struct ifg_group *); static void pfi_change_group_event(void * __unused, char *); static void pfi_detach_group_event(void * __unused, struct ifg_group *); @@ -172,6 +174,8 @@ pfi_initialize(void) pfi_attach_ifnet_event, NULL, EVENTHANDLER_PRI_ANY); pfi_detach_cookie = EVENTHANDLER_REGISTER(ifnet_departure_event, pfi_detach_ifnet_event, NULL, EVENTHANDLER_PRI_ANY); + pfi_rename_cookie = EVENTHANDLER_REGISTER(ifnet_rename_event, + pfi_rename_ifnet_event, NULL, EVENTHANDLER_PRI_ANY); pfi_attach_group_cookie = EVENTHANDLER_REGISTER(group_attach_event, pfi_attach_group_event, NULL, EVENTHANDLER_PRI_ANY); pfi_change_group_cookie = EVENTHANDLER_REGISTER(group_change_event, @@ -1069,6 +1073,14 @@ pfi_attach_ifnet_event(void *arg __unused, struct ifnet *ifp) NET_EPOCH_EXIT(et); } +static void +pfi_rename_ifnet_event(void *arg, struct ifnet *ifp) +{ + /* XXXGL: should be handled better */ + pfi_detach_ifnet_event(arg, ifp); + pfi_attach_ifnet_event(arg, ifp); +} + static void pfi_detach_ifnet_event(void *arg __unused, struct ifnet *ifp) {
