154558Sbp/*- 266479Sbp * Copyright (c) 1999, 2000 Boris Popov 354558Sbp * All rights reserved. 454558Sbp * 554558Sbp * Redistribution and use in source and binary forms, with or without 654558Sbp * modification, are permitted provided that the following conditions 754558Sbp * are met: 854558Sbp * 1. Redistributions of source code must retain the above copyright 954558Sbp * notice, this list of conditions and the following disclaimer. 1054558Sbp * 2. Redistributions in binary form must reproduce the above copyright 1154558Sbp * notice, this list of conditions and the following disclaimer in the 1254558Sbp * documentation and/or other materials provided with the distribution. 1354558Sbp * 1454558Sbp * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1554558Sbp * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1654558Sbp * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1754558Sbp * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 1854558Sbp * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 1954558Sbp * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2054558Sbp * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2154558Sbp * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2254558Sbp * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2354558Sbp * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2454558Sbp * SUCH DAMAGE. 2554558Sbp * 2654558Sbp * $FreeBSD$ 2754558Sbp */ 2854558Sbp 2954558Sbp#include "opt_inet.h" 3054558Sbp#include "opt_ipx.h" 3156424Sbp#include "opt_ef.h" 3254558Sbp 3354558Sbp#include <sys/param.h> 3454558Sbp#include <sys/systm.h> 3554558Sbp#include <sys/sockio.h> 3654558Sbp#include <sys/malloc.h> 3754558Sbp#include <sys/mbuf.h> 3854558Sbp#include <sys/socket.h> 3954558Sbp#include <sys/syslog.h> 4054558Sbp#include <sys/kernel.h> 4154558Sbp#include <sys/module.h> 4254558Sbp 4354558Sbp#include <net/ethernet.h> 4454558Sbp#include <net/if_llc.h> 4554558Sbp#include <net/if.h> 4654558Sbp#include <net/if_arp.h> 4754558Sbp#include <net/if_dl.h> 4854558Sbp#include <net/if_types.h> 4954558Sbp#include <net/netisr.h> 5054558Sbp#include <net/bpf.h> 51185571Sbz#include <net/vnet.h> 5254558Sbp 5354558Sbp#ifdef INET 5454558Sbp#include <netinet/in.h> 5554558Sbp#include <netinet/in_var.h> 5654558Sbp#include <netinet/if_ether.h> 5754558Sbp#endif 5854558Sbp 5954558Sbp#ifdef IPX 6054558Sbp#include <netipx/ipx.h> 6154558Sbp#include <netipx/ipx_if.h> 6254558Sbp#endif 6354558Sbp 64143196Ssobomax/* If none of the supported layers is enabled explicitly enable them all */ 65143196Ssobomax#if !defined(ETHER_II) && !defined(ETHER_8023) && !defined(ETHER_8022) && \ 66143196Ssobomax !defined(ETHER_SNAP) 67143196Ssobomax#define ETHER_II 1 68143196Ssobomax#define ETHER_8023 1 69143196Ssobomax#define ETHER_8022 1 70143196Ssobomax#define ETHER_SNAP 1 71143196Ssobomax#endif 72143196Ssobomax 7354558Sbp/* internal frame types */ 7454558Sbp#define ETHER_FT_EII 0 /* Ethernet_II - default */ 7554558Sbp#define ETHER_FT_8023 1 /* 802.3 (Novell) */ 7654558Sbp#define ETHER_FT_8022 2 /* 802.2 */ 7754558Sbp#define ETHER_FT_SNAP 3 /* SNAP */ 7854558Sbp#define EF_NFT 4 /* total number of frame types */ 7954558Sbp 8054558Sbp#ifdef EF_DEBUG 8187599Sobrien#define EFDEBUG(format, args...) printf("%s: "format, __func__ ,## args) 8254558Sbp#else 8354558Sbp#define EFDEBUG(format, args...) 8454558Sbp#endif 8554558Sbp 8687599Sobrien#define EFERROR(format, args...) printf("%s: "format, __func__ ,## args) 8754558Sbp 8854558Sbpstruct efnet { 89147256Sbrooks struct ifnet *ef_ifp; 90147256Sbrooks struct ifnet *ef_pifp; 91121816Sbrooks int ef_frametype; 9254558Sbp}; 9354558Sbp 9454558Sbpstruct ef_link { 9560938Sjake SLIST_ENTRY(ef_link) el_next; 9654558Sbp struct ifnet *el_ifp; /* raw device for this clones */ 9754558Sbp struct efnet *el_units[EF_NFT]; /* our clones */ 9854558Sbp}; 9954558Sbp 10060938Sjakestatic SLIST_HEAD(ef_link_head, ef_link) efdev = {NULL}; 10154558Sbpstatic int efcount; 10254558Sbp 10354558Sbpextern int (*ef_inputp)(struct ifnet*, struct ether_header *eh, struct mbuf *m); 10459681Sbpextern int (*ef_outputp)(struct ifnet *ifp, struct mbuf **mp, 105249925Sglebius const struct sockaddr *dst, short *tp, int *hlen); 10654558Sbp 10754558Sbp/* 10854558Sbpstatic void ef_reset (struct ifnet *); 10954558Sbp*/ 11054558Sbpstatic int ef_attach(struct efnet *sc); 11154558Sbpstatic int ef_detach(struct efnet *sc); 11254558Sbpstatic void ef_init(void *); 11354558Sbpstatic int ef_ioctl(struct ifnet *, u_long, caddr_t); 11454558Sbpstatic void ef_start(struct ifnet *); 11554558Sbpstatic int ef_input(struct ifnet*, struct ether_header *, struct mbuf *); 11659681Sbpstatic int ef_output(struct ifnet *ifp, struct mbuf **mp, 117249925Sglebius const struct sockaddr *dst, short *tp, int *hlen); 11854558Sbp 11954558Sbpstatic int ef_load(void); 12054558Sbpstatic int ef_unload(void); 12154558Sbp 12254558Sbp/* 12354558Sbp * Install the interface, most of structure initialization done in ef_clone() 12454558Sbp */ 12554558Sbpstatic int 12654558Sbpef_attach(struct efnet *sc) 12754558Sbp{ 128147256Sbrooks struct ifnet *ifp = sc->ef_ifp; 12954558Sbp 13054558Sbp ifp->if_start = ef_start; 13154558Sbp ifp->if_init = ef_init; 132207554Ssobomax ifp->if_snd.ifq_maxlen = ifqmaxlen; 13354558Sbp ifp->if_flags = (IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST); 13454558Sbp /* 13554558Sbp * Attach the interface 13654558Sbp */ 137152315Sru ether_ifattach(ifp, IF_LLADDR(sc->ef_pifp)); 13854558Sbp 13954558Sbp ifp->if_resolvemulti = 0; 14054558Sbp ifp->if_type = IFT_XETHER; 141148887Srwatson ifp->if_drv_flags |= IFF_DRV_RUNNING; 14254558Sbp 143121816Sbrooks EFDEBUG("%s: attached\n", ifp->if_xname); 14454558Sbp return 1; 14554558Sbp} 14654558Sbp 14754558Sbp/* 14854558Sbp * This is for _testing_only_, just removes interface from interfaces list 14954558Sbp */ 15054558Sbpstatic int 15154558Sbpef_detach(struct efnet *sc) 15254558Sbp{ 153147256Sbrooks struct ifnet *ifp = sc->ef_ifp; 15454558Sbp 155147256Sbrooks ether_ifdetach(ifp); 156147256Sbrooks if_free(ifp); 157147256Sbrooks 15854558Sbp return 0; 15954558Sbp} 16054558Sbp 16154558Sbpstatic void 16254558Sbpef_init(void *foo) { 16354558Sbp return; 16454558Sbp} 16554558Sbp 16654558Sbpstatic int 16754558Sbpef_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 16854558Sbp{ 169121816Sbrooks struct efnet *sc = ifp->if_softc; 17054558Sbp struct ifaddr *ifa = (struct ifaddr*)data; 171241686Sandre int error; 17254558Sbp 173121816Sbrooks EFDEBUG("IOCTL %ld for %s\n", cmd, ifp->if_xname); 17454558Sbp error = 0; 17554558Sbp switch (cmd) { 176106939Ssam case SIOCSIFFLAGS: 177106939Ssam error = 0; 178106939Ssam break; 17954558Sbp case SIOCSIFADDR: 180121816Sbrooks if (sc->ef_frametype == ETHER_FT_8023 && 18154558Sbp ifa->ifa_addr->sa_family != AF_IPX) { 18254558Sbp error = EAFNOSUPPORT; 18354558Sbp break; 18454558Sbp } 18554558Sbp ifp->if_flags |= IFF_UP; 18654558Sbp /* FALL THROUGH */ 187106939Ssam default: 18854558Sbp error = ether_ioctl(ifp, cmd, data); 18954558Sbp break; 19054558Sbp } 19154558Sbp return error; 19254558Sbp} 19354558Sbp 19454558Sbp/* 19554558Sbp * Currently packet prepared in the ether_output(), but this can be a better 19654558Sbp * place. 19754558Sbp */ 19854558Sbpstatic void 19954558Sbpef_start(struct ifnet *ifp) 20054558Sbp{ 20154558Sbp struct efnet *sc = (struct efnet*)ifp->if_softc; 20254558Sbp struct ifnet *p; 20354558Sbp struct mbuf *m; 204130549Smlaier int error; 20554558Sbp 206148887Srwatson ifp->if_drv_flags |= IFF_DRV_OACTIVE; 207147256Sbrooks p = sc->ef_pifp; 20854558Sbp 20954558Sbp EFDEBUG("\n"); 21054558Sbp for (;;) { 21154558Sbp IF_DEQUEUE(&ifp->if_snd, m); 21254558Sbp if (m == 0) 21354558Sbp break; 214106939Ssam BPF_MTAP(ifp, m); 215191607Skmacy error = p->if_transmit(p, m); 216130549Smlaier if (error) { 21759681Sbp ifp->if_oerrors++; 21859681Sbp continue; 21954558Sbp } 22069152Sjlemon ifp->if_opackets++; 22154558Sbp } 222148887Srwatson ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 22354558Sbp return; 22454558Sbp} 22554558Sbp 22654558Sbp/* 22754558Sbp * Inline functions do not put additional overhead to procedure call or 22854558Sbp * parameter passing but simplify the code 22954558Sbp */ 23054558Sbpstatic int __inline 231111888Sjlemonef_inputEII(struct mbuf *m, struct ether_header *eh, u_short ether_type) 23254558Sbp{ 233111888Sjlemon int isr; 234111888Sjlemon 23554558Sbp switch(ether_type) { 23654558Sbp#ifdef IPX 237111888Sjlemon case ETHERTYPE_IPX: 238111888Sjlemon isr = NETISR_IPX; 23954558Sbp break; 24054558Sbp#endif 24154558Sbp#ifdef INET 242111888Sjlemon case ETHERTYPE_IP: 243295896Sgnn if ((m = ip_fastforward(m)) == NULL) 244295896Sgnn return (0); 245111888Sjlemon isr = NETISR_IP; 24654558Sbp break; 24754558Sbp 248111888Sjlemon case ETHERTYPE_ARP: 249111888Sjlemon isr = NETISR_ARP; 25054558Sbp break; 25154558Sbp#endif 252111888Sjlemon default: 253111888Sjlemon return (EPROTONOSUPPORT); 25454558Sbp } 255111888Sjlemon netisr_dispatch(isr, m); 256111888Sjlemon return (0); 25754558Sbp} 25854558Sbp 25954558Sbpstatic int __inline 26054558Sbpef_inputSNAP(struct mbuf *m, struct ether_header *eh, struct llc* l, 261111888Sjlemon u_short ether_type) 26254558Sbp{ 263111888Sjlemon int isr; 264111888Sjlemon 26554558Sbp switch(ether_type) { 26654558Sbp#ifdef IPX 267111888Sjlemon case ETHERTYPE_IPX: 26854558Sbp m_adj(m, 8); 269111888Sjlemon isr = NETISR_IPX; 27054558Sbp break; 27154558Sbp#endif 272111888Sjlemon default: 273111888Sjlemon return (EPROTONOSUPPORT); 27454558Sbp } 275111888Sjlemon netisr_dispatch(isr, m); 276111888Sjlemon return (0); 27754558Sbp} 27854558Sbp 27954558Sbpstatic int __inline 28054558Sbpef_input8022(struct mbuf *m, struct ether_header *eh, struct llc* l, 281111888Sjlemon u_short ether_type) 28254558Sbp{ 283111888Sjlemon int isr; 284111888Sjlemon 28554558Sbp switch(ether_type) { 28654558Sbp#ifdef IPX 287111888Sjlemon case 0xe0: 28854558Sbp m_adj(m, 3); 289111888Sjlemon isr = NETISR_IPX; 29054558Sbp break; 29154558Sbp#endif 292111888Sjlemon default: 293111888Sjlemon return (EPROTONOSUPPORT); 29454558Sbp } 295111888Sjlemon netisr_dispatch(isr, m); 296111888Sjlemon return (0); 29754558Sbp} 298111888Sjlemon 29954558Sbp/* 30054558Sbp * Called from ether_input() 30154558Sbp */ 30254558Sbpstatic int 30354558Sbpef_input(struct ifnet *ifp, struct ether_header *eh, struct mbuf *m) 30454558Sbp{ 30554558Sbp u_short ether_type; 30671891Sbp int ft = -1; 30754558Sbp struct efnet *efp; 30854558Sbp struct ifnet *eifp; 30954558Sbp struct llc *l; 31054558Sbp struct ef_link *efl; 311111888Sjlemon int isr; 31254558Sbp 31354558Sbp ether_type = ntohs(eh->ether_type); 314132778Skan l = NULL; 31554558Sbp if (ether_type < ETHERMTU) { 31654558Sbp l = mtod(m, struct llc*); 31754558Sbp if (l->llc_dsap == 0xff && l->llc_ssap == 0xff) { 31854558Sbp /* 31954558Sbp * Novell's "802.3" frame 32054558Sbp */ 32154558Sbp ft = ETHER_FT_8023; 32254558Sbp } else if (l->llc_dsap == 0xaa && l->llc_ssap == 0xaa) { 32354558Sbp /* 32454558Sbp * 802.2/SNAP 32554558Sbp */ 32654558Sbp ft = ETHER_FT_SNAP; 32754558Sbp ether_type = ntohs(l->llc_un.type_snap.ether_type); 32854558Sbp } else if (l->llc_dsap == l->llc_ssap) { 32954558Sbp /* 33054558Sbp * 802.3/802.2 33154558Sbp */ 33254558Sbp ft = ETHER_FT_8022; 33354558Sbp ether_type = l->llc_ssap; 33454558Sbp } 33554558Sbp } else 33654558Sbp ft = ETHER_FT_EII; 33754558Sbp 33854558Sbp if (ft == -1) { 33954558Sbp EFDEBUG("Unrecognised ether_type %x\n", ether_type); 34059681Sbp return EPROTONOSUPPORT; 34154558Sbp } 34254558Sbp 34354558Sbp /* 34454558Sbp * Check if interface configured for the given frame 34554558Sbp */ 34654558Sbp efp = NULL; 34754558Sbp SLIST_FOREACH(efl, &efdev, el_next) { 34854558Sbp if (efl->el_ifp == ifp) { 34954558Sbp efp = efl->el_units[ft]; 35054558Sbp break; 35154558Sbp } 35254558Sbp } 35354558Sbp if (efp == NULL) { 35454558Sbp EFDEBUG("Can't find if for %d\n", ft); 35559681Sbp return EPROTONOSUPPORT; 35654558Sbp } 357147256Sbrooks eifp = efp->ef_ifp; 35854558Sbp if ((eifp->if_flags & IFF_UP) == 0) 35959681Sbp return EPROTONOSUPPORT; 36054558Sbp eifp->if_ibytes += m->m_pkthdr.len + sizeof (*eh); 36154558Sbp m->m_pkthdr.rcvif = eifp; 36254558Sbp 363123922Ssam BPF_MTAP2(eifp, eh, ETHER_HDR_LEN, m); 36454558Sbp /* 36554558Sbp * Now we ready to adjust mbufs and pass them to protocol intr's 36654558Sbp */ 36754558Sbp switch(ft) { 368111888Sjlemon case ETHER_FT_EII: 369111888Sjlemon return (ef_inputEII(m, eh, ether_type)); 37054558Sbp#ifdef IPX 371111888Sjlemon case ETHER_FT_8023: /* only IPX can be here */ 372111888Sjlemon isr = NETISR_IPX; 37354558Sbp break; 37454558Sbp#endif 375111888Sjlemon case ETHER_FT_SNAP: 376111888Sjlemon return (ef_inputSNAP(m, eh, l, ether_type)); 377111888Sjlemon case ETHER_FT_8022: 378111888Sjlemon return (ef_input8022(m, eh, l, ether_type)); 379111888Sjlemon default: 38054558Sbp EFDEBUG("No support for frame %d and proto %04x\n", 38154558Sbp ft, ether_type); 382111888Sjlemon return (EPROTONOSUPPORT); 38354558Sbp } 384111888Sjlemon netisr_dispatch(isr, m); 385111888Sjlemon return (0); 38654558Sbp} 38754558Sbp 38854558Sbpstatic int 389249925Sglebiusef_output(struct ifnet *ifp, struct mbuf **mp, const struct sockaddr *dst, 390249925Sglebius short *tp, int *hlen) 39154558Sbp{ 392121816Sbrooks struct efnet *sc = (struct efnet*)ifp->if_softc; 39359681Sbp struct mbuf *m = *mp; 39454558Sbp u_char *cp; 39554558Sbp short type; 39654558Sbp 39754558Sbp if (ifp->if_type != IFT_XETHER) 39859681Sbp return ENETDOWN; 399121816Sbrooks switch (sc->ef_frametype) { 40054558Sbp case ETHER_FT_EII: 40154558Sbp#ifdef IPX 40254558Sbp type = htons(ETHERTYPE_IPX); 40354558Sbp#else 40459681Sbp return EPFNOSUPPORT; 40554558Sbp#endif 40654558Sbp break; 40754558Sbp case ETHER_FT_8023: 40854558Sbp type = htons(m->m_pkthdr.len); 40954558Sbp break; 41054558Sbp case ETHER_FT_8022: 411243882Sglebius M_PREPEND(m, ETHER_HDR_LEN + 3, M_WAITOK); 41259681Sbp /* 41359681Sbp * Ensure that ethernet header and next three bytes 41459681Sbp * will fit into single mbuf 41559681Sbp */ 41659681Sbp m = m_pullup(m, ETHER_HDR_LEN + 3); 41759681Sbp if (m == NULL) { 41859681Sbp *mp = NULL; 41959681Sbp return ENOBUFS; 42059681Sbp } 42159681Sbp m_adj(m, ETHER_HDR_LEN); 42254558Sbp type = htons(m->m_pkthdr.len); 42354558Sbp cp = mtod(m, u_char *); 42454558Sbp *cp++ = 0xE0; 42554558Sbp *cp++ = 0xE0; 42654558Sbp *cp++ = 0x03; 42766479Sbp *hlen += 3; 42854558Sbp break; 42954558Sbp case ETHER_FT_SNAP: 430243882Sglebius M_PREPEND(m, 8, M_WAITOK); 43154558Sbp type = htons(m->m_pkthdr.len); 43254558Sbp cp = mtod(m, u_char *); 43354558Sbp bcopy("\xAA\xAA\x03\x00\x00\x00\x81\x37", cp, 8); 43466479Sbp *hlen += 8; 43554558Sbp break; 43654558Sbp default: 43759681Sbp return EPFNOSUPPORT; 43854558Sbp } 43959681Sbp *mp = m; 44054558Sbp *tp = type; 44154558Sbp return 0; 44254558Sbp} 44354558Sbp 44454558Sbp/* 44554558Sbp * Create clone from the given interface 44654558Sbp */ 44754558Sbpstatic int 44854558Sbpef_clone(struct ef_link *efl, int ft) 44954558Sbp{ 45054558Sbp struct efnet *efp; 45154558Sbp struct ifnet *eifp; 45254558Sbp struct ifnet *ifp = efl->el_ifp; 45354558Sbp 45469781Sdwmalone efp = (struct efnet*)malloc(sizeof(struct efnet), M_IFADDR, 455111119Simp M_WAITOK | M_ZERO); 45654558Sbp if (efp == NULL) 45754558Sbp return ENOMEM; 458147256Sbrooks efp->ef_pifp = ifp; 459121816Sbrooks efp->ef_frametype = ft; 460147256Sbrooks eifp = efp->ef_ifp = if_alloc(IFT_ETHER); 461154318Srwatson if (eifp == NULL) { 462154318Srwatson free(efp, M_IFADDR); 463147256Sbrooks return (ENOSPC); 464154318Srwatson } 465121816Sbrooks snprintf(eifp->if_xname, IFNAMSIZ, 466121816Sbrooks "%sf%d", ifp->if_xname, efp->ef_frametype); 467121816Sbrooks eifp->if_dname = "ef"; 468121816Sbrooks eifp->if_dunit = IF_DUNIT_NONE; 46954558Sbp eifp->if_softc = efp; 47054558Sbp if (ifp->if_ioctl) 47154558Sbp eifp->if_ioctl = ef_ioctl; 47254558Sbp efl->el_units[ft] = efp; 47354558Sbp return 0; 47454558Sbp} 47554558Sbp 47654558Sbpstatic int 47754558Sbpef_load(void) 47854558Sbp{ 479183550Szec VNET_ITERATOR_DECL(vnet_iter); 48054558Sbp struct ifnet *ifp; 48154558Sbp struct efnet *efp; 482154317Srwatson struct ef_link *efl = NULL, *efl_temp; 48354558Sbp int error = 0, d; 48454558Sbp 485183550Szec VNET_LIST_RLOCK(); 486183550Szec VNET_FOREACH(vnet_iter) { 487183550Szec CURVNET_SET(vnet_iter); 488196482Srwatson 489196482Srwatson /* 490196482Srwatson * XXXRW: The following loop walks the ifnet list while 491196482Srwatson * modifying it, something not well-supported by ifnet 492196482Srwatson * locking. To avoid lock upgrade/recursion issues, manually 493196482Srwatson * acquire a write lock of ifnet_sxlock here, rather than a 494196482Srwatson * read lock, so that when if_alloc() recurses the lock, we 495196482Srwatson * don't panic. This structure, in which if_ef automatically 496196482Srwatson * attaches to all ethernet interfaces, should be replaced 497196482Srwatson * with a model like that found in if_vlan, in which 498196482Srwatson * interfaces are explicitly configured, which would avoid 499196482Srwatson * this (and other) problems. 500196482Srwatson */ 501196482Srwatson sx_xlock(&ifnet_sxlock); 502183550Szec TAILQ_FOREACH(ifp, &V_ifnet, if_link) { 503183550Szec if (ifp->if_type != IFT_ETHER) continue; 504183550Szec EFDEBUG("Found interface %s\n", ifp->if_xname); 505183550Szec efl = (struct ef_link*)malloc(sizeof(struct ef_link), 506183550Szec M_IFADDR, M_WAITOK | M_ZERO); 507183550Szec if (efl == NULL) { 508183550Szec error = ENOMEM; 509183550Szec break; 510183550Szec } 51154558Sbp 512183550Szec efl->el_ifp = ifp; 51354558Sbp#ifdef ETHER_II 514183550Szec error = ef_clone(efl, ETHER_FT_EII); 515183550Szec if (error) break; 51654558Sbp#endif 51754558Sbp#ifdef ETHER_8023 518183550Szec error = ef_clone(efl, ETHER_FT_8023); 519183550Szec if (error) break; 52054558Sbp#endif 52154558Sbp#ifdef ETHER_8022 522183550Szec error = ef_clone(efl, ETHER_FT_8022); 523183550Szec if (error) break; 52454558Sbp#endif 52554558Sbp#ifdef ETHER_SNAP 526183550Szec error = ef_clone(efl, ETHER_FT_SNAP); 527183550Szec if (error) break; 52854558Sbp#endif 529183550Szec efcount++; 530183550Szec SLIST_INSERT_HEAD(&efdev, efl, el_next); 531183550Szec } 532196482Srwatson sx_xunlock(&ifnet_sxlock); 533183550Szec CURVNET_RESTORE(); 53454558Sbp } 535183550Szec VNET_LIST_RUNLOCK(); 53654558Sbp if (error) { 53754558Sbp if (efl) 53854558Sbp SLIST_INSERT_HEAD(&efdev, efl, el_next); 539154317Srwatson SLIST_FOREACH_SAFE(efl, &efdev, el_next, efl_temp) { 54054558Sbp for (d = 0; d < EF_NFT; d++) 541147256Sbrooks if (efl->el_units[d]) { 542147256Sbrooks if (efl->el_units[d]->ef_pifp != NULL) 543147256Sbrooks if_free(efl->el_units[d]->ef_pifp); 54454558Sbp free(efl->el_units[d], M_IFADDR); 545147256Sbrooks } 54654558Sbp free(efl, M_IFADDR); 54754558Sbp } 54854558Sbp return error; 54954558Sbp } 55054558Sbp SLIST_FOREACH(efl, &efdev, el_next) { 55154558Sbp for (d = 0; d < EF_NFT; d++) { 55254558Sbp efp = efl->el_units[d]; 55354558Sbp if (efp) 55454558Sbp ef_attach(efp); 55554558Sbp } 55654558Sbp } 55754558Sbp ef_inputp = ef_input; 55854558Sbp ef_outputp = ef_output; 55954558Sbp EFDEBUG("Loaded\n"); 56054558Sbp return 0; 56154558Sbp} 56254558Sbp 56354558Sbpstatic int 56454558Sbpef_unload(void) 56554558Sbp{ 56654558Sbp struct efnet *efp; 56754558Sbp struct ef_link *efl; 56854558Sbp int d; 56954558Sbp 57054558Sbp ef_inputp = NULL; 57154558Sbp ef_outputp = NULL; 57254558Sbp SLIST_FOREACH(efl, &efdev, el_next) { 57354558Sbp for (d = 0; d < EF_NFT; d++) { 57454558Sbp efp = efl->el_units[d]; 57554558Sbp if (efp) { 57654558Sbp ef_detach(efp); 57754558Sbp } 57854558Sbp } 57954558Sbp } 58054558Sbp EFDEBUG("Unloaded\n"); 58154558Sbp return 0; 58254558Sbp} 58354558Sbp 58454558Sbpstatic int 58554558Sbpif_ef_modevent(module_t mod, int type, void *data) 58654558Sbp{ 58754558Sbp switch ((modeventtype_t)type) { 58854558Sbp case MOD_LOAD: 58954558Sbp return ef_load(); 59054558Sbp case MOD_UNLOAD: 59154558Sbp return ef_unload(); 59254558Sbp default: 593132199Sphk return EOPNOTSUPP; 59454558Sbp } 59554558Sbp return 0; 59654558Sbp} 59754558Sbp 59854558Sbpstatic moduledata_t if_ef_mod = { 59954558Sbp "if_ef", if_ef_modevent, NULL 60054558Sbp}; 60154558Sbp 60254558SbpDECLARE_MODULE(if_ef, if_ef_mod, SI_SUB_PSEUDO, SI_ORDER_MIDDLE); 603