The branch main has been updated by melifaro:

URL: 
https://cgit.FreeBSD.org/src/commit/?id=91ebcbe02a48ebd40edb49283b90f38d246da15a

commit 91ebcbe02a48ebd40edb49283b90f38d246da15a
Author:     Alexander V. Chernikov <[email protected]>
AuthorDate: 2022-09-22 12:30:09 +0000
Commit:     Alexander V. Chernikov <[email protected]>
CommitDate: 2022-09-22 12:30:09 +0000

    if_clone: migrate some consumers to the new KPI.
    
    Convert most of the cloner customers who require custom params
     to the new if_clone KPI.
    
    Reviewed by:    kp
    Differential Revision:  https://reviews.freebsd.org/D36636
    MFC after:      2 weeks
---
 sys/dev/usb/usb_pf.c             | 23 +++++++++++++++--------
 sys/net/if_bridge.c              | 28 +++++++++++++++++++---------
 sys/net/if_epair.c               | 22 ++++++++++++----------
 sys/net/if_lagg.c                | 33 +++++++++++++++++++++------------
 sys/net/if_loop.c                | 32 +++++++++++++++++++-------------
 sys/net/if_ovpn.c                | 14 ++++++++++----
 sys/net/if_stf.c                 | 18 +++++++++++-------
 sys/net/if_tuntap.c              | 30 +++++++++++++++++++-----------
 sys/net/if_vlan.c                | 32 +++++++++++++++++++-------------
 sys/net/if_vxlan.c               | 34 ++++++++++++++++++++++------------
 sys/net80211/ieee80211_freebsd.c | 25 +++++++++++++++++--------
 sys/netpfil/pf/if_pflog.c        | 37 ++++++++++++++++++++++++++-----------
 12 files changed, 210 insertions(+), 118 deletions(-)

diff --git a/sys/dev/usb/usb_pf.c b/sys/dev/usb/usb_pf.c
index 6ccb5ebbc62b..d0b7f0889cea 100644
--- a/sys/dev/usb/usb_pf.c
+++ b/sys/dev/usb/usb_pf.c
@@ -70,8 +70,9 @@ static void usbpf_init(void *);
 static void usbpf_uninit(void *);
 static int usbpf_ioctl(struct ifnet *, u_long, caddr_t);
 static int usbpf_clone_match(struct if_clone *, const char *);
-static int usbpf_clone_create(struct if_clone *, char *, size_t, caddr_t);
-static int usbpf_clone_destroy(struct if_clone *, struct ifnet *);
+static int usbpf_clone_create(struct if_clone *, char *, size_t,
+           struct ifc_data *, struct ifnet **);
+static int usbpf_clone_destroy(struct if_clone *, struct ifnet *, uint32_t);
 static struct usb_bus *usbpf_ifname2ubus(const char *);
 static uint32_t usbpf_aggregate_xferflags(struct usb_xfer_flags *);
 static uint32_t usbpf_aggregate_status(struct usb_xfer_flags_int *);
@@ -87,9 +88,13 @@ SYSUNINIT(usbpf_uninit, SI_SUB_PSEUDO, SI_ORDER_MIDDLE, 
usbpf_uninit, NULL);
 static void
 usbpf_init(void *arg)
 {
+       struct if_clone_addreq req = {
+               .match_f = usbpf_clone_match,
+               .create_f = usbpf_clone_create,
+               .destroy_f = usbpf_clone_destroy,
+       };
 
-       usbpf_cloner = if_clone_advanced(usbusname, 0, usbpf_clone_match,
-           usbpf_clone_create, usbpf_clone_destroy);
+       usbpf_cloner = ifc_attach_cloner(usbusname, &req);
 }
 
 static void
@@ -113,7 +118,7 @@ usbpf_uninit(void *arg)
        for (i = 0; i < devlcnt; i++) {
                ubus = device_get_softc(devlp[i]);
                if (ubus != NULL && ubus->ifp != NULL)
-                       usbpf_clone_destroy(usbpf_cloner, ubus->ifp);
+                       usbpf_clone_destroy(usbpf_cloner, ubus->ifp, 0);
        }
        free(devlp, M_TEMP);
 }
@@ -164,7 +169,8 @@ usbpf_clone_match(struct if_clone *ifc, const char *name)
 }
 
 static int
-usbpf_clone_create(struct if_clone *ifc, char *name, size_t len, caddr_t 
params)
+usbpf_clone_create(struct if_clone *ifc, char *name, size_t len,
+    struct ifc_data *ifd, struct ifnet **ifpp)
 {
        int error;
        int unit;
@@ -210,12 +216,13 @@ usbpf_clone_create(struct if_clone *ifc, char *name, 
size_t len, caddr_t params)
         * packets would be.
         */
        bpfattach(ifp, DLT_USB, USBPF_HDR_LEN);
+       *ifpp = ifp;
 
        return (0);
 }
 
 static int
-usbpf_clone_destroy(struct if_clone *ifc, struct ifnet *ifp)
+usbpf_clone_destroy(struct if_clone *ifc, struct ifnet *ifp, uint32_t flags)
 {
        struct usb_bus *ubus;
        int unit;
@@ -251,7 +258,7 @@ usbpf_detach(struct usb_bus *ubus)
 {
 
        if (ubus->ifp != NULL)
-               usbpf_clone_destroy(usbpf_cloner, ubus->ifp);
+               usbpf_clone_destroy(usbpf_cloner, ubus->ifp, 0);
        if (bootverbose)
                device_printf(ubus->parent, "usbpf: Detached\n");
 }
diff --git a/sys/net/if_bridge.c b/sys/net/if_bridge.c
index 664a1f885a46..f2538a78f943 100644
--- a/sys/net/if_bridge.c
+++ b/sys/net/if_bridge.c
@@ -286,8 +286,9 @@ int bridge_rtable_prune_period = BRIDGE_RTABLE_PRUNE_PERIOD;
 VNET_DEFINE_STATIC(uma_zone_t, bridge_rtnode_zone);
 #define        V_bridge_rtnode_zone    VNET(bridge_rtnode_zone)
 
-static int     bridge_clone_create(struct if_clone *, int, caddr_t);
-static void    bridge_clone_destroy(struct ifnet *);
+static int     bridge_clone_create(struct if_clone *, char *, size_t,
+                   struct ifc_data *, struct ifnet **);
+static int     bridge_clone_destroy(struct if_clone *, struct ifnet *, 
uint32_t);
 
 static int     bridge_ioctl(struct ifnet *, u_long, caddr_t);
 static void    bridge_mutecaps(struct bridge_softc *);
@@ -585,8 +586,13 @@ vnet_bridge_init(const void *unused __unused)
            UMA_ALIGN_PTR, 0);
        BRIDGE_LIST_LOCK_INIT();
        LIST_INIT(&V_bridge_list);
-       V_bridge_cloner = if_clone_simple(bridge_name,
-           bridge_clone_create, bridge_clone_destroy, 0);
+
+       struct if_clone_addreq req = {
+               .create_f = bridge_clone_create,
+               .destroy_f = bridge_clone_destroy,
+               .flags = IFC_F_AUTOUNIT,
+       };
+       V_bridge_cloner = ifc_attach_cloner(bridge_name, &req);
 }
 VNET_SYSINIT(vnet_bridge_init, SI_SUB_PROTO_IFATTACHDOMAIN, SI_ORDER_ANY,
     vnet_bridge_init, NULL);
@@ -595,7 +601,7 @@ static void
 vnet_bridge_uninit(const void *unused __unused)
 {
 
-       if_clone_detach(V_bridge_cloner);
+       ifc_detach_cloner(V_bridge_cloner);
        V_bridge_cloner = NULL;
        BRIDGE_LIST_LOCK_DESTROY();
 
@@ -702,7 +708,8 @@ bridge_reassign(struct ifnet *ifp, struct vnet *newvnet, 
char *arg)
  *     Create a new bridge instance.
  */
 static int
-bridge_clone_create(struct if_clone *ifc, int unit, caddr_t params)
+bridge_clone_create(struct if_clone *ifc, char *name, size_t len,
+    struct ifc_data *ifd, struct ifnet **ifpp)
 {
        struct bridge_softc *sc;
        struct ifnet *ifp;
@@ -727,7 +734,7 @@ bridge_clone_create(struct if_clone *ifc, int unit, caddr_t 
params)
        CK_LIST_INIT(&sc->sc_spanlist);
 
        ifp->if_softc = sc;
-       if_initname(ifp, bridge_name, unit);
+       if_initname(ifp, bridge_name, ifd->unit);
        ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
        ifp->if_ioctl = bridge_ioctl;
 #ifdef ALTQ
@@ -757,6 +764,7 @@ bridge_clone_create(struct if_clone *ifc, int unit, caddr_t 
params)
        BRIDGE_LIST_LOCK();
        LIST_INSERT_HEAD(&V_bridge_list, sc, sc_list);
        BRIDGE_LIST_UNLOCK();
+       *ifpp = ifp;
 
        return (0);
 }
@@ -777,8 +785,8 @@ bridge_clone_destroy_cb(struct epoch_context *ctx)
  *
  *     Destroy a bridge instance.
  */
-static void
-bridge_clone_destroy(struct ifnet *ifp)
+static int
+bridge_clone_destroy(struct if_clone *ifc, struct ifnet *ifp, uint32_t flags)
 {
        struct bridge_softc *sc = ifp->if_softc;
        struct bridge_iflist *bif;
@@ -819,6 +827,8 @@ bridge_clone_destroy(struct ifnet *ifp)
        if_free(ifp);
 
        NET_EPOCH_CALL(bridge_clone_destroy_cb, &sc->sc_epoch_ctx);
+
+       return (0);
 }
 
 /*
diff --git a/sys/net/if_epair.c b/sys/net/if_epair.c
index 1dc5cb695d86..6bf7481065cd 100644
--- a/sys/net/if_epair.c
+++ b/sys/net/if_epair.c
@@ -84,10 +84,6 @@ __FBSDID("$FreeBSD$");
 #endif
 #include <net/vnet.h>
 
-static int epair_clone_match(struct if_clone *, const char *);
-static int epair_clone_create(struct if_clone *, char *, size_t, caddr_t);
-static int epair_clone_destroy(struct if_clone *, struct ifnet *);
-
 static const char epairname[] = "epair";
 #define        RXRSIZE 4096    /* Probably overkill by 4-8x. */
 
@@ -612,7 +608,8 @@ epair_free_sc(struct epair_softc *sc)
 }
 
 static int
-epair_clone_create(struct if_clone *ifc, char *name, size_t len, caddr_t 
params)
+epair_clone_create(struct if_clone *ifc, char *name, size_t len,
+    struct ifc_data *ifd, struct ifnet **ifpp)
 {
        struct epair_softc *sca, *scb;
        struct ifnet *ifp;
@@ -708,6 +705,8 @@ epair_clone_create(struct if_clone *ifc, char *name, size_t 
len, caddr_t params)
        scb->ifp->if_drv_flags |= IFF_DRV_RUNNING;
        if_link_state_change(scb->ifp, LINK_STATE_UP);
 
+       *ifpp = sca->ifp;
+
        return (0);
 }
 
@@ -731,7 +730,7 @@ epair_drain_rings(struct epair_softc *sc)
 }
 
 static int
-epair_clone_destroy(struct if_clone *ifc, struct ifnet *ifp)
+epair_clone_destroy(struct if_clone *ifc, struct ifnet *ifp, uint32_t flags)
 {
        struct ifnet *oifp;
        struct epair_softc *sca, *scb;
@@ -782,9 +781,12 @@ epair_clone_destroy(struct if_clone *ifc, struct ifnet 
*ifp)
 static void
 vnet_epair_init(const void *unused __unused)
 {
-
-       V_epair_cloner = if_clone_advanced(epairname, 0,
-           epair_clone_match, epair_clone_create, epair_clone_destroy);
+       struct if_clone_addreq req = {
+               .match_f = epair_clone_match,
+               .create_f = epair_clone_create,
+               .destroy_f = epair_clone_destroy,
+       };
+       V_epair_cloner = ifc_attach_cloner(epairname, &req);
 }
 VNET_SYSINIT(vnet_epair_init, SI_SUB_PSEUDO, SI_ORDER_ANY,
     vnet_epair_init, NULL);
@@ -793,7 +795,7 @@ static void
 vnet_epair_uninit(const void *unused __unused)
 {
 
-       if_clone_detach(V_epair_cloner);
+       ifc_detach_cloner(V_epair_cloner);
 }
 VNET_SYSUNINIT(vnet_epair_uninit, SI_SUB_INIT_IF, SI_ORDER_ANY,
     vnet_epair_uninit, NULL);
diff --git a/sys/net/if_lagg.c b/sys/net/if_lagg.c
index 8e273c4ed391..7c5e0127d7ff 100644
--- a/sys/net/if_lagg.c
+++ b/sys/net/if_lagg.c
@@ -117,8 +117,9 @@ VNET_DEFINE_STATIC(struct mtx, lagg_list_mtx);
 #define        LAGG_LIST_UNLOCK(x)             mtx_unlock(&V_lagg_list_mtx)
 eventhandler_tag       lagg_detach_cookie = NULL;
 
-static int     lagg_clone_create(struct if_clone *, int, caddr_t);
-static void    lagg_clone_destroy(struct ifnet *);
+static int     lagg_clone_create(struct if_clone *, char *, size_t,
+                   struct ifc_data *, struct ifnet **);
+static int     lagg_clone_destroy(struct if_clone *, struct ifnet *, uint32_t);
 VNET_DEFINE_STATIC(struct if_clone *, lagg_cloner);
 #define        V_lagg_cloner   VNET(lagg_cloner)
 static const char laggname[] = "lagg";
@@ -304,8 +305,12 @@ vnet_lagg_init(const void *unused __unused)
 
        LAGG_LIST_LOCK_INIT();
        SLIST_INIT(&V_lagg_list);
-       V_lagg_cloner = if_clone_simple(laggname, lagg_clone_create,
-           lagg_clone_destroy, 0);
+       struct if_clone_addreq req = {
+               .create_f = lagg_clone_create,
+               .destroy_f = lagg_clone_destroy,
+               .flags = IFC_F_AUTOUNIT,
+       };
+       V_lagg_cloner = ifc_attach_cloner(laggname, &req);
 }
 VNET_SYSINIT(vnet_lagg_init, SI_SUB_PROTO_IFATTACHDOMAIN, SI_ORDER_ANY,
     vnet_lagg_init, NULL);
@@ -314,7 +319,7 @@ static void
 vnet_lagg_uninit(const void *unused __unused)
 {
 
-       if_clone_detach(V_lagg_cloner);
+       ifc_detach_cloner(V_lagg_cloner);
        LAGG_LIST_LOCK_DESTROY();
 }
 VNET_SYSUNINIT(vnet_lagg_uninit, SI_SUB_INIT_IF, SI_ORDER_ANY,
@@ -504,7 +509,8 @@ lagg_unregister_vlan(void *arg, struct ifnet *ifp, 
u_int16_t vtag)
 }
 
 static int
-lagg_clone_create(struct if_clone *ifc, int unit, caddr_t params)
+lagg_clone_create(struct if_clone *ifc, char *name, size_t len,
+    struct ifc_data *ifd, struct ifnet **ifpp)
 {
        struct iflaggparam iflp;
        struct lagg_softc *sc;
@@ -513,8 +519,8 @@ lagg_clone_create(struct if_clone *ifc, int unit, caddr_t 
params)
        int error;
        static const uint8_t eaddr[LAGG_ADDR_LEN];
 
-       if (params != NULL) {
-               error = copyin(params, &iflp, sizeof(iflp));
+       if (ifd->params != NULL) {
+               error = ifc_copyin(ifd, &iflp, sizeof(iflp));
                if (error)
                        return (error);
 
@@ -565,11 +571,11 @@ lagg_clone_create(struct if_clone *ifc, int unit, caddr_t 
params)
                ifmedia_add(&sc->sc_media, IFM_ETHER | IFM_AUTO, 0, NULL);
                ifmedia_set(&sc->sc_media, IFM_ETHER | IFM_AUTO);
 
-               if_initname(ifp, laggname, unit);
+               if_initname(ifp, laggname, ifd->unit);
                ifp->if_transmit = lagg_transmit_ethernet;
                break;
        case IFT_INFINIBAND:
-               if_initname(ifp, laggname, unit);
+               if_initname(ifp, laggname, ifd->unit);
                ifp->if_transmit = lagg_transmit_infiniband;
                break;
        default:
@@ -612,12 +618,13 @@ lagg_clone_create(struct if_clone *ifc, int unit, caddr_t 
params)
        SLIST_INSERT_HEAD(&V_lagg_list, sc, sc_entries);
        LAGG_LIST_UNLOCK();
        LAGG_XUNLOCK(sc);
+       *ifpp = ifp;
 
        return (0);
 }
 
-static void
-lagg_clone_destroy(struct ifnet *ifp)
+static int
+lagg_clone_destroy(struct if_clone *ifc, struct ifnet *ifp, uint32_t flags)
 {
        struct lagg_softc *sc = (struct lagg_softc *)ifp->if_softc;
        struct lagg_port *lp;
@@ -658,6 +665,8 @@ lagg_clone_destroy(struct ifnet *ifp)
        mtx_destroy(&sc->sc_mtx);
        LAGG_SX_DESTROY(sc);
        free(sc, M_LAGG);
+
+       return (0);
 }
 
 static void
diff --git a/sys/net/if_loop.c b/sys/net/if_loop.c
index 4f0b236f7f5e..f4d34c46f9f0 100644
--- a/sys/net/if_loop.c
+++ b/sys/net/if_loop.c
@@ -93,8 +93,6 @@
 static int     loioctl(struct ifnet *, u_long, caddr_t);
 static int     looutput(struct ifnet *ifp, struct mbuf *m,
                    const struct sockaddr *dst, struct route *ro);
-static int     lo_clone_create(struct if_clone *, int, caddr_t);
-static void    lo_clone_destroy(struct ifnet *);
 
 VNET_DEFINE(struct ifnet *, loif);     /* Used externally */
 
@@ -106,9 +104,11 @@ VNET_DEFINE_STATIC(struct if_clone *, lo_cloner);
 static struct if_clone *lo_cloner;
 static const char loname[] = "lo";
 
-static void
-lo_clone_destroy(struct ifnet *ifp)
+static int
+lo_clone_destroy(struct if_clone *ifc, struct ifnet *ifp, uint32_t flags)
 {
+       if (ifp->if_dunit == 0 && (flags & IFC_F_FORCE) == 0)
+               return (EINVAL);
 
 #ifndef VIMAGE
        /* XXX: destroying lo0 will lead to panics. */
@@ -118,10 +118,13 @@ lo_clone_destroy(struct ifnet *ifp)
        bpfdetach(ifp);
        if_detach(ifp);
        if_free(ifp);
+
+       return (0);
 }
 
 static int
-lo_clone_create(struct if_clone *ifc, int unit, caddr_t params)
+lo_clone_create(struct if_clone *ifc, char *name, size_t len,
+    struct ifc_data *ifd, struct ifnet **ifpp)
 {
        struct ifnet *ifp;
 
@@ -129,7 +132,7 @@ lo_clone_create(struct if_clone *ifc, int unit, caddr_t 
params)
        if (ifp == NULL)
                return (ENOSPC);
 
-       if_initname(ifp, loname, unit);
+       if_initname(ifp, loname, ifd->unit);
        ifp->if_mtu = LOMTU;
        ifp->if_flags = IFF_LOOPBACK | IFF_MULTICAST;
        ifp->if_ioctl = loioctl;
@@ -142,6 +145,7 @@ lo_clone_create(struct if_clone *ifc, int unit, caddr_t 
params)
        bpfattach(ifp, DLT_NULL, sizeof(u_int32_t));
        if (V_loif == NULL)
                V_loif = ifp;
+       *ifpp = ifp;
 
        return (0);
 }
@@ -149,15 +153,17 @@ lo_clone_create(struct if_clone *ifc, int unit, caddr_t 
params)
 static void
 vnet_loif_init(const void *unused __unused)
 {
-
+       struct if_clone_addreq req = {
+               .create_f = lo_clone_create,
+               .destroy_f = lo_clone_destroy,
+               .flags = IFC_F_AUTOUNIT,
+       };
+       lo_cloner = ifc_attach_cloner(loname, &req);
 #ifdef VIMAGE
-       lo_cloner = if_clone_simple(loname, lo_clone_create, lo_clone_destroy,
-           1);
        V_lo_cloner = lo_cloner;
-#else
-       lo_cloner = if_clone_simple(loname, lo_clone_create, lo_clone_destroy,
-           1);
 #endif
+       struct ifc_data ifd = { .unit = 0 };
+       ifc_create_ifp(loname, &ifd, NULL);
 }
 VNET_SYSINIT(vnet_loif_init, SI_SUB_PSEUDO, SI_ORDER_ANY,
     vnet_loif_init, NULL);
@@ -167,7 +173,7 @@ static void
 vnet_loif_uninit(const void *unused __unused)
 {
 
-       if_clone_detach(V_lo_cloner);
+       ifc_detach_cloner(V_lo_cloner);
        V_loif = NULL;
 }
 VNET_SYSUNINIT(vnet_loif_uninit, SI_SUB_INIT_IF, SI_ORDER_SECOND,
diff --git a/sys/net/if_ovpn.c b/sys/net/if_ovpn.c
index 82e6dd4f6eee..286125fb42d5 100644
--- a/sys/net/if_ovpn.c
+++ b/sys/net/if_ovpn.c
@@ -2291,7 +2291,8 @@ ovpn_clone_match(struct if_clone *ifc, const char *name)
 }
 
 static int
-ovpn_clone_create(struct if_clone *ifc, char *name, size_t len, caddr_t params)
+ovpn_clone_create(struct if_clone *ifc, char *name, size_t len,
+    struct ifc_data *ifd, struct ifnet **ifpp)
 {
        struct ovpn_softc *sc;
        struct ifnet *ifp;
@@ -2357,6 +2358,7 @@ ovpn_clone_create(struct if_clone *ifc, char *name, 
size_t len, caddr_t params)
 
        if_attach(ifp);
        bpfattach(ifp, DLT_NULL, sizeof(uint32_t));
+       *ifpp = ifp;
 
        return (0);
 }
@@ -2380,7 +2382,7 @@ ovpn_clone_destroy_cb(struct epoch_context *ctx)
 }
 
 static int
-ovpn_clone_destroy(struct if_clone *ifc, struct ifnet *ifp)
+ovpn_clone_destroy(struct if_clone *ifc, struct ifnet *ifp, uint32_t flags)
 {
        struct ovpn_softc *sc;
        int unit;
@@ -2429,8 +2431,12 @@ ovpn_clone_destroy(struct if_clone *ifc, struct ifnet 
*ifp)
 static void
 vnet_ovpn_init(const void *unused __unused)
 {
-       V_ovpn_cloner = if_clone_advanced(ovpngroupname, 0, ovpn_clone_match,
-           ovpn_clone_create, ovpn_clone_destroy);
+       struct if_clone_addreq req = {
+               .match_f = ovpn_clone_match,
+               .create_f = ovpn_clone_create,
+               .destroy_f = ovpn_clone_destroy,
+       };
+       V_ovpn_cloner = ifc_attach_cloner(ovpngroupname, &req);
 }
 VNET_SYSINIT(vnet_ovpn_init, SI_SUB_PSEUDO, SI_ORDER_ANY,
     vnet_ovpn_init, NULL);
diff --git a/sys/net/if_stf.c b/sys/net/if_stf.c
index 51ea0a61ae0d..9a469a82c34c 100644
--- a/sys/net/if_stf.c
+++ b/sys/net/if_stf.c
@@ -214,9 +214,6 @@ static struct sockaddr_in *stf_getin4addr(struct stf_softc 
*,
        struct sockaddr_in *, struct in6_addr, struct in6_addr);
 static int stf_ioctl(struct ifnet *, u_long, caddr_t);
 
-static int stf_clone_match(struct if_clone *, const char *);
-static int stf_clone_create(struct if_clone *, char *, size_t, caddr_t);
-static int stf_clone_destroy(struct if_clone *, struct ifnet *);
 VNET_DEFINE_STATIC(struct if_clone *, stf_cloner);
 #define V_stf_cloner   VNET(stf_cloner)
 
@@ -242,7 +239,8 @@ stf_clone_match(struct if_clone *ifc, const char *name)
 }
 
 static int
-stf_clone_create(struct if_clone *ifc, char *name, size_t len, caddr_t params)
+stf_clone_create(struct if_clone *ifc, char *name, size_t len,
+    struct ifc_data *ifd, struct ifnet **ifpp)
 {
        char *dp;
        int err, unit, wildcard;
@@ -309,11 +307,13 @@ stf_clone_create(struct if_clone *ifc, char *name, size_t 
len, caddr_t params)
        ifp->if_snd.ifq_maxlen = ifqmaxlen;
        if_attach(ifp);
        bpfattach(ifp, DLT_NULL, sizeof(u_int32_t));
+       *ifpp = ifp;
+
        return (0);
 }
 
 static int
-stf_clone_destroy(struct if_clone *ifc, struct ifnet *ifp)
+stf_clone_destroy(struct if_clone *ifc, struct ifnet *ifp, uint32_t flags)
 {
        struct stf_softc *sc = ifp->if_softc;
        int err __unused;
@@ -333,8 +333,12 @@ stf_clone_destroy(struct if_clone *ifc, struct ifnet *ifp)
 static void
 vnet_stf_init(const void *unused __unused)
 {
-       V_stf_cloner = if_clone_advanced(stfname, 0, stf_clone_match,
-           stf_clone_create, stf_clone_destroy);
+       struct if_clone_addreq req = {
+               .match_f = stf_clone_match,
+               .create_f = stf_clone_create,
+               .destroy_f = stf_clone_destroy,
+       };
+       V_stf_cloner = ifc_attach_cloner(stfname, &req);
 }
 VNET_SYSINIT(vnet_stf_init, SI_SUB_PSEUDO, SI_ORDER_ANY, vnet_stf_init, NULL);
 
diff --git a/sys/net/if_tuntap.c b/sys/net/if_tuntap.c
index 5e1e60933caa..8328f9f94442 100644
--- a/sys/net/if_tuntap.c
+++ b/sys/net/if_tuntap.c
@@ -235,8 +235,9 @@ static void tunstart_l2(struct ifnet *);
 static int     tun_clone_match(struct if_clone *ifc, const char *name);
 static int     tap_clone_match(struct if_clone *ifc, const char *name);
 static int     vmnet_clone_match(struct if_clone *ifc, const char *name);
-static int     tun_clone_create(struct if_clone *, char *, size_t, caddr_t);
-static int     tun_clone_destroy(struct if_clone *, struct ifnet *);
+static int     tun_clone_create(struct if_clone *, char *, size_t,
+                   struct ifc_data *, struct ifnet **);
+static int     tun_clone_destroy(struct if_clone *, struct ifnet *, uint32_t);
 static void    tun_vnethdr_set(struct ifnet *ifp, int vhdrlen);
 
 static d_open_t                tunopen;
@@ -269,9 +270,9 @@ static struct tuntap_driver {
        int                      ident_flags;
        struct unrhdr           *unrhdr;
        struct clonedevs        *clones;
-       ifc_match_t             *clone_match_fn;
-       ifc_create_t            *clone_create_fn;
-       ifc_destroy_t           *clone_destroy_fn;
+       ifc_match_f             *clone_match_fn;
+       ifc_create_f            *clone_create_fn;
+       ifc_destroy_f           *clone_destroy_fn;
 } tuntap_drivers[] = {
        {
                .ident_flags =  0,
@@ -514,7 +515,8 @@ vmnet_clone_match(struct if_clone *ifc, const char *name)
 }
 
 static int
-tun_clone_create(struct if_clone *ifc, char *name, size_t len, caddr_t params)
+tun_clone_create(struct if_clone *ifc, char *name, size_t len,
+    struct ifc_data *ifd, struct ifnet **ifpp)
 {
        struct tuntap_driver *drv;
        struct cdev *dev;
@@ -546,8 +548,11 @@ tun_clone_create(struct if_clone *ifc, char *name, size_t 
len, caddr_t params)
        /* No preexisting struct cdev *, create one */
        if (i != 0)
                i = tun_create_device(drv, unit, NULL, &dev, name);
-       if (i == 0)
+       if (i == 0) {
                tuncreate(dev);
+               struct tuntap_softc *tp = dev->si_drv1;
+               *ifpp = tp->tun_ifp;
+       }
 
        return (i);
 }
@@ -649,7 +654,7 @@ tun_destroy(struct tuntap_softc *tp)
 }
 
 static int
-tun_clone_destroy(struct if_clone *ifc __unused, struct ifnet *ifp)
+tun_clone_destroy(struct if_clone *ifc __unused, struct ifnet *ifp, uint32_t 
flags)
 {
        struct tuntap_softc *tp = ifp->if_softc;
 
@@ -673,9 +678,12 @@ vnet_tun_init(const void *unused __unused)
                drvc = malloc(sizeof(*drvc), M_TUN, M_WAITOK | M_ZERO);
 
                drvc->drv = drv;
-               drvc->cloner = if_clone_advanced(drv->cdevsw.d_name, 0,
-                   drv->clone_match_fn, drv->clone_create_fn,
-                   drv->clone_destroy_fn);
+               struct if_clone_addreq req = {
+                       .match_f = drv->clone_match_fn,
+                       .create_f = drv->clone_create_fn,
+                       .destroy_f = drv->clone_destroy_fn,
+               };
+               drvc->cloner = ifc_attach_cloner(drv->cdevsw.d_name, &req);
                SLIST_INSERT_HEAD(&V_tuntap_driver_cloners, drvc, link);
        };
 }
diff --git a/sys/net/if_vlan.c b/sys/net/if_vlan.c
index 58df9b21fc20..6a2d1bfb3fd1 100644
--- a/sys/net/if_vlan.c
+++ b/sys/net/if_vlan.c
@@ -323,8 +323,9 @@ static      void vlan_trunk_capabilities(struct ifnet *ifp);
 
 static struct ifnet *vlan_clone_match_ethervid(const char *, int *);
 static int vlan_clone_match(struct if_clone *, const char *);
-static int vlan_clone_create(struct if_clone *, char *, size_t, caddr_t);
-static int vlan_clone_destroy(struct if_clone *, struct ifnet *);
+static int vlan_clone_create(struct if_clone *, char *, size_t,
+    struct ifc_data *, struct ifnet **);
+static int vlan_clone_destroy(struct if_clone *, struct ifnet *, uint32_t);
 
 static void vlan_ifdetach(void *arg, struct ifnet *ifp);
 static  void vlan_iflladdr(void *arg, struct ifnet *ifp);
@@ -902,6 +903,12 @@ extern     void (*vlan_input_p)(struct ifnet *, struct 
mbuf *);
 /* For if_link_state_change() eyes only... */
 extern void (*vlan_link_state_p)(struct ifnet *);
 
+static struct if_clone_addreq vlan_addreq = {
+       .match_f = vlan_clone_match,
+       .create_f = vlan_clone_create,
+       .destroy_f = vlan_clone_destroy,
+};
+
 static int
 vlan_modevent(module_t mod, int type, void *data)
 {
@@ -931,8 +938,7 @@ vlan_modevent(module_t mod, int type, void *data)
                vlan_pcp_p = vlan_pcp;
                vlan_devat_p = vlan_devat;
 #ifndef VIMAGE
-               vlan_cloner = if_clone_advanced(vlanname, 0, vlan_clone_match,
-                   vlan_clone_create, vlan_clone_destroy);
+               vlan_cloner = ifc_attach_cloner(vlanname, &vlan_addreq);
 #endif
                if (bootverbose)
                        printf("vlan: initialized, using "
@@ -946,7 +952,7 @@ vlan_modevent(module_t mod, int type, void *data)
                break;
        case MOD_UNLOAD:
 #ifndef VIMAGE
-               if_clone_detach(vlan_cloner);
+               ifc_detach_cloner(vlan_cloner);
 #endif
                EVENTHANDLER_DEREGISTER(ifnet_departure_event, ifdetach_tag);
                EVENTHANDLER_DEREGISTER(iflladdr_event, iflladdr_tag);
@@ -982,9 +988,7 @@ MODULE_VERSION(if_vlan, 3);
 static void
 vnet_vlan_init(const void *unused __unused)
 {
-
-       vlan_cloner = if_clone_advanced(vlanname, 0, vlan_clone_match,
-                   vlan_clone_create, vlan_clone_destroy);
+       vlan_cloner = ifc_attach_cloner(vlanname, &vlan_addreq);
        V_vlan_cloner = vlan_cloner;
 }
 VNET_SYSINIT(vnet_vlan_init, SI_SUB_PROTO_IFATTACHDOMAIN, SI_ORDER_ANY,
@@ -994,7 +998,7 @@ static void
 vnet_vlan_uninit(const void *unused __unused)
 {
 
-       if_clone_detach(V_vlan_cloner);
+       ifc_detach_cloner(V_vlan_cloner);
 }
 VNET_SYSUNINIT(vnet_vlan_uninit, SI_SUB_INIT_IF, SI_ORDER_ANY,
     vnet_vlan_uninit, NULL);
@@ -1058,7 +1062,8 @@ vlan_clone_match(struct if_clone *ifc, const char *name)
 }
 
 static int
-vlan_clone_create(struct if_clone *ifc, char *name, size_t len, caddr_t params)
+vlan_clone_create(struct if_clone *ifc, char *name, size_t len,
+    struct ifc_data *ifd, struct ifnet **ifpp)
 {
        char *dp;
        bool wildcard = false;
@@ -1089,8 +1094,8 @@ vlan_clone_create(struct if_clone *ifc, char *name, 
size_t len, caddr_t params)
         * called for.
         */
 
-       if (params) {
-               error = copyin(params, &vlr, sizeof(vlr));
+       if (ifd->params != NULL) {
+               error = ifc_copyin(ifd, &vlr, sizeof(vlr));
                if (error)
                        return error;
                vid = vlr.vlr_tag;
@@ -1219,12 +1224,13 @@ vlan_clone_create(struct if_clone *ifc, char *name, 
size_t len, caddr_t params)
                        return (error);
                }
        }
+       *ifpp = ifp;
 
        return (0);
 }
 
 static int
-vlan_clone_destroy(struct if_clone *ifc, struct ifnet *ifp)
+vlan_clone_destroy(struct if_clone *ifc, struct ifnet *ifp, uint32_t flags)
 {
        struct ifvlan *ifv = ifp->if_softc;
        int unit = ifp->if_dunit;
diff --git a/sys/net/if_vxlan.c b/sys/net/if_vxlan.c
index a1e925195d74..6c9a3d7e3095 100644
--- a/sys/net/if_vxlan.c
+++ b/sys/net/if_vxlan.c
@@ -376,8 +376,9 @@ static int  vxlan_set_user_config(struct vxlan_softc *,
                     struct ifvxlanparam *);
 static int     vxlan_set_reqcap(struct vxlan_softc *, struct ifnet *, int);
 static void    vxlan_set_hwcaps(struct vxlan_softc *);
-static int     vxlan_clone_create(struct if_clone *, int, caddr_t);
-static void    vxlan_clone_destroy(struct ifnet *);
+static int     vxlan_clone_create(struct if_clone *, char *, size_t,
+                   struct ifc_data *, struct ifnet **);
+static int     vxlan_clone_destroy(struct if_clone *, struct ifnet *, 
uint32_t);
 
 static uint32_t vxlan_mac_hash(struct vxlan_softc *, const uint8_t *);
 static int     vxlan_media_change(struct ifnet *);
@@ -3194,7 +3195,8 @@ done:
 }
 
 static int
-vxlan_clone_create(struct if_clone *ifc, int unit, caddr_t params)
+vxlan_clone_create(struct if_clone *ifc, char *name, size_t len,
+    struct ifc_data *ifd, struct ifnet **ifpp)
 {
        struct vxlan_softc *sc;
        struct ifnet *ifp;
@@ -3202,15 +3204,15 @@ vxlan_clone_create(struct if_clone *ifc, int unit, 
caddr_t params)
        int error;
 
        sc = malloc(sizeof(struct vxlan_softc), M_VXLAN, M_WAITOK | M_ZERO);
-       sc->vxl_unit = unit;
+       sc->vxl_unit = ifd->unit;
        sc->vxl_fibnum = curthread->td_proc->p_fibnum;
        vxlan_set_default_config(sc);
        error = vxlan_stats_alloc(sc);
        if (error != 0)
                goto fail;
 
-       if (params != 0) {
-               error = copyin(params, &vxlp, sizeof(vxlp));
+       if (ifd->params != NULL) {
+               error = ifc_copyin(ifd, &vxlp, sizeof(vxlp));
                if (error)
                        goto fail;
 
@@ -3234,7 +3236,7 @@ vxlan_clone_create(struct if_clone *ifc, int unit, 
caddr_t params)
        vxlan_sysctl_setup(sc);
 
        ifp->if_softc = sc;
-       if_initname(ifp, vxlan_name, unit);
+       if_initname(ifp, vxlan_name, ifd->unit);
        ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
        ifp->if_init = vxlan_init;
        ifp->if_ioctl = vxlan_ioctl;
@@ -3257,6 +3259,7 @@ vxlan_clone_create(struct if_clone *ifc, int unit, 
caddr_t params)
        VXLAN_WLOCK(sc);
        vxlan_setup_interface_hdrlen(sc);
        VXLAN_WUNLOCK(sc);
+       *ifpp = ifp;
 
        return (0);
 
@@ -3265,8 +3268,8 @@ fail:
        return (error);
 }
 
-static void
-vxlan_clone_destroy(struct ifnet *ifp)
+static int
+vxlan_clone_destroy(struct if_clone *ifc, struct ifnet *ifp, uint32_t flags)
 {
        struct vxlan_softc *sc;
 
@@ -3286,6 +3289,8 @@ vxlan_clone_destroy(struct ifnet *ifp)
        rm_destroy(&sc->vxl_lock);
        vxlan_stats_free(sc);
        free(sc, M_VXLAN);
+
+       return (0);
 }
 
 /* BMV: Taken from if_bridge. */
@@ -3639,8 +3644,13 @@ vxlan_load(void)
        LIST_INIT(&vxlan_socket_list);
        vxlan_ifdetach_event_tag = EVENTHANDLER_REGISTER(ifnet_departure_event,
            vxlan_ifdetach_event, NULL, EVENTHANDLER_PRI_ANY);
-       vxlan_cloner = if_clone_simple(vxlan_name, vxlan_clone_create,
-           vxlan_clone_destroy, 0);
+
+       struct if_clone_addreq req = {
+               .create_f = vxlan_clone_create,
+               .destroy_f = vxlan_clone_destroy,
+               .flags = IFC_F_AUTOUNIT,
+       };
+       vxlan_cloner = ifc_attach_cloner(vxlan_name, &req);
 }
 
 static void
@@ -3649,7 +3659,7 @@ vxlan_unload(void)
 
        EVENTHANDLER_DEREGISTER(ifnet_departure_event,
            vxlan_ifdetach_event_tag);
-       if_clone_detach(vxlan_cloner);
+       ifc_detach_cloner(vxlan_cloner);
        mtx_destroy(&vxlan_list_mtx);
        MPASS(LIST_EMPTY(&vxlan_socket_list));
 }
diff --git a/sys/net80211/ieee80211_freebsd.c b/sys/net80211/ieee80211_freebsd.c
index 5511791ae2aa..ec970e217dfd 100644
--- a/sys/net80211/ieee80211_freebsd.c
+++ b/sys/net80211/ieee80211_freebsd.c
@@ -112,7 +112,8 @@ ieee80211_priv_check_create_vap(u_long cmd __unused,
 }
 
 static int
-wlan_clone_create(struct if_clone *ifc, int unit, caddr_t params)
+wlan_clone_create(struct if_clone *ifc, char *name, size_t len,
+    struct ifc_data *ifd, struct ifnet **ifpp)
 {
        struct ieee80211_clone_params cp;
        struct ieee80211vap *vap;
@@ -123,7 +124,7 @@ wlan_clone_create(struct if_clone *ifc, int unit, caddr_t 
params)
        if (error)
                return error;
 
-       error = copyin(params, &cp, sizeof(cp));
+       error = ifc_copyin(ifd, &cp, sizeof(cp));
        if (error)
                return error;
        ic = ieee80211_find_com(cp.icp_parent);
@@ -149,7 +150,7 @@ wlan_clone_create(struct if_clone *ifc, int unit, caddr_t 
params)
                ic_printf(ic, "TDMA not supported\n");
                return EOPNOTSUPP;
        }
-       vap = ic->ic_vap_create(ic, wlanname, unit,
+       vap = ic->ic_vap_create(ic, wlanname, ifd->unit,
                        cp.icp_opmode, cp.icp_flags, cp.icp_bssid,
                        cp.icp_flags & IEEE80211_CLONE_MACADDR ?
                            cp.icp_macaddr : ic->ic_macaddr);
@@ -161,16 +162,20 @@ wlan_clone_create(struct if_clone *ifc, int unit, caddr_t 
params)
        if (ic->ic_debugnet_meth != NULL)
                DEBUGNET_SET(vap->iv_ifp, ieee80211);
 #endif
+       *ifpp = vap->iv_ifp;
+
        return (0);
 }
 
-static void
-wlan_clone_destroy(struct ifnet *ifp)
+static int
+wlan_clone_destroy(struct if_clone *ifc, struct ifnet *ifp, uint32_t flags)
 {
        struct ieee80211vap *vap = ifp->if_softc;
        struct ieee80211com *ic = vap->iv_ic;
 
        ic->ic_vap_delete(vap);
+
+       return (0);
 }
 
 void
@@ -1160,11 +1165,15 @@ wlan_modevent(module_t mod, int type, void *unused)
                    bpf_track, 0, EVENTHANDLER_PRI_ANY);
                wlan_ifllevent = EVENTHANDLER_REGISTER(iflladdr_event,
                    wlan_iflladdr, NULL, EVENTHANDLER_PRI_ANY);
-               wlan_cloner = if_clone_simple(wlanname, wlan_clone_create,
-                   wlan_clone_destroy, 0);
+               struct if_clone_addreq req = {
+                       .create_f = wlan_clone_create,
+                       .destroy_f = wlan_clone_destroy,
+                       .flags = IFC_F_AUTOUNIT,
+               };
+               wlan_cloner = ifc_attach_cloner(wlanname, &req);
                return 0;
        case MOD_UNLOAD:
-               if_clone_detach(wlan_cloner);
+               ifc_detach_cloner(wlan_cloner);
                EVENTHANDLER_DEREGISTER(bpf_track, wlan_bpfevent);
                EVENTHANDLER_DEREGISTER(iflladdr_event, wlan_ifllevent);
                return 0;
diff --git a/sys/netpfil/pf/if_pflog.c b/sys/netpfil/pf/if_pflog.c
index 261c9f2a4087..b4f34cd13fba 100644
--- a/sys/netpfil/pf/if_pflog.c
+++ b/sys/netpfil/pf/if_pflog.c
@@ -91,8 +91,9 @@ static int    pflogoutput(struct ifnet *, struct mbuf *,
 static void    pflogattach(int);
 static int     pflogioctl(struct ifnet *, u_long, caddr_t);
 static void    pflogstart(struct ifnet *);
-static int     pflog_clone_create(struct if_clone *, int, caddr_t);
-static void    pflog_clone_destroy(struct ifnet *);
+static int     pflog_clone_create(struct if_clone *, char *, size_t,
+                   struct ifc_data *, struct ifnet **);
+static int     pflog_clone_destroy(struct if_clone *, struct ifnet *, 
uint32_t);
 
 static const char pflogname[] = "pflog";
 
@@ -108,23 +109,31 @@ pflogattach(int npflog __unused)
        int     i;
        for (i = 0; i < PFLOGIFS_MAX; i++)
                V_pflogifs[i] = NULL;
-       V_pflog_cloner = if_clone_simple(pflogname, pflog_clone_create,
-           pflog_clone_destroy, 1);
+
+       struct if_clone_addreq req = {
+               .create_f = pflog_clone_create,
+               .destroy_f = pflog_clone_destroy,
+               .flags = IFC_F_AUTOUNIT,
+       };
+       V_pflog_cloner = ifc_attach_cloner(pflogname, &req);
+       struct ifc_data ifd = { .unit = 0 };
+       ifc_create_ifp(pflogname, &ifd, NULL);
 }
 
 static int
-pflog_clone_create(struct if_clone *ifc, int unit, caddr_t param)
+pflog_clone_create(struct if_clone *ifc, char *name, size_t maxlen,
+    struct ifc_data *ifd, struct ifnet **ifpp)
 {
        struct ifnet *ifp;
 
-       if (unit >= PFLOGIFS_MAX)
+       if (ifd->unit >= PFLOGIFS_MAX)
                return (EINVAL);
 
        ifp = if_alloc(IFT_PFLOG);
        if (ifp == NULL) {
                return (ENOSPC);
        }
-       if_initname(ifp, pflogname, unit);
+       if_initname(ifp, pflogname, ifd->unit);
        ifp->if_mtu = PFLOGMTU;
        ifp->if_ioctl = pflogioctl;
        ifp->if_output = pflogoutput;
@@ -135,16 +144,20 @@ pflog_clone_create(struct if_clone *ifc, int unit, 
caddr_t param)
 
        bpfattach(ifp, DLT_PFLOG, PFLOG_HDRLEN);
 
-       V_pflogifs[unit] = ifp;
+       V_pflogifs[ifd->unit] = ifp;
+       *ifpp = ifp;
 
        return (0);
 }
 
-static void
-pflog_clone_destroy(struct ifnet *ifp)
+static int
+pflog_clone_destroy(struct if_clone *ifc, struct ifnet *ifp, uint32_t flags)
 {
*** 26 LINES SKIPPED ***

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