diff options
Diffstat (limited to 'freebsd/sys/netatalk/aarp.c')
| -rw-r--r-- | freebsd/sys/netatalk/aarp.c | 726 |
1 files changed, 0 insertions, 726 deletions
diff --git a/freebsd/sys/netatalk/aarp.c b/freebsd/sys/netatalk/aarp.c deleted file mode 100644 index 4ce3701a..00000000 --- a/freebsd/sys/netatalk/aarp.c +++ /dev/null @@ -1,726 +0,0 @@ -#include <machine/rtems-bsd-kernel-space.h> - -/*- - * Copyright (c) 2004-2009 Robert N. M. Watson - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * Copyright (c) 1990,1991,1994 Regents of The University of Michigan. - * All Rights Reserved. - * - * Permission to use, copy, modify, and distribute this software and - * its documentation for any purpose and without fee is hereby granted, - * provided that the above copyright notice appears in all copies and - * that both that copyright notice and this permission notice appear - * in supporting documentation, and that the name of The University - * of Michigan not be used in advertising or publicity pertaining to - * distribution of the software without specific, written prior - * permission. This software is supplied as is without expressed or - * implied warranties of any kind. - * - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * - * Research Systems Unix Group - * The University of Michigan - * c/o Wesley Craig - * 535 W. William Street - * Ann Arbor, Michigan - * +1-313-764-2278 - * netatalk@umich.edu - * - * $FreeBSD$ - */ - -#include <rtems/bsd/local/opt_atalk.h> - -#include <rtems/bsd/sys/param.h> -#include <sys/systm.h> -#include <sys/mbuf.h> -#include <sys/kernel.h> -#include <sys/socket.h> -#include <sys/syslog.h> - -#include <net/if.h> -#include <net/if_dl.h> - -#include <netinet/in.h> -#undef s_net -#include <netinet/if_ether.h> - -#include <netatalk/at.h> -#include <netatalk/at_var.h> -#include <netatalk/aarp.h> -#include <netatalk/phase2.h> -#include <netatalk/at_extern.h> - -#include <security/mac/mac_framework.h> - -static void aarptfree(struct aarptab *aat); -static void at_aarpinput(struct ifnet *ifp, struct mbuf *m); - -#define AARPTAB_BSIZ 9 -#define AARPTAB_NB 19 -#define AARPTAB_SIZE (AARPTAB_BSIZ * AARPTAB_NB) -static struct aarptab aarptab[AARPTAB_SIZE]; - -struct mtx aarptab_mtx; -MTX_SYSINIT(aarptab_mtx, &aarptab_mtx, "aarptab_mtx", MTX_DEF); - -#define AARPTAB_HASH(a) ((((a).s_net << 8) + (a).s_node) % AARPTAB_NB) - -#define AARPTAB_LOOK(aat, addr) do { \ - int n; \ - \ - AARPTAB_LOCK_ASSERT(); \ - aat = &aarptab[ AARPTAB_HASH(addr) * AARPTAB_BSIZ ]; \ - for (n = 0; n < AARPTAB_BSIZ; n++, aat++) { \ - if (aat->aat_ataddr.s_net == (addr).s_net && \ - aat->aat_ataddr.s_node == (addr).s_node) \ - break; \ - } \ - if (n >= AARPTAB_BSIZ) \ - aat = NULL; \ -} while (0) - -#define AARPT_AGE (60 * 1) -#define AARPT_KILLC 20 -#define AARPT_KILLI 3 - -static const u_char atmulticastaddr[6] = { - 0x09, 0x00, 0x07, 0xff, 0xff, 0xff, -}; - -u_char at_org_code[3] = { - 0x08, 0x00, 0x07, -}; -const u_char aarp_org_code[3] = { - 0x00, 0x00, 0x00, -}; - -static struct callout_handle aarptimer_ch = - CALLOUT_HANDLE_INITIALIZER(&aarptimer_ch); - -static void -aarptimer(void *ignored) -{ - struct aarptab *aat; - int i; - - aarptimer_ch = timeout(aarptimer, NULL, AARPT_AGE * hz); - aat = aarptab; - AARPTAB_LOCK(); - for (i = 0; i < AARPTAB_SIZE; i++, aat++) { - if (aat->aat_flags == 0 || (aat->aat_flags & ATF_PERM)) - continue; - if (++aat->aat_timer < ((aat->aat_flags & ATF_COM) ? - AARPT_KILLC : AARPT_KILLI)) - continue; - aarptfree(aat); - } - AARPTAB_UNLOCK(); -} - -/* - * Search through the network addresses to find one that includes the given - * network. Remember to take netranges into consideration. - * - * The _locked variant relies on the caller holding the at_ifaddr lock; the - * unlocked variant returns a reference that the caller must dispose of. - */ -struct at_ifaddr * -at_ifawithnet_locked(struct sockaddr_at *sat) -{ - struct at_ifaddr *aa; - struct sockaddr_at *sat2; - - AT_IFADDR_LOCK_ASSERT(); - - TAILQ_FOREACH(aa, &at_ifaddrhead, aa_link) { - sat2 = &(aa->aa_addr); - if (sat2->sat_addr.s_net == sat->sat_addr.s_net) - break; - if ((aa->aa_flags & AFA_PHASE2) && - (ntohs(aa->aa_firstnet) <= ntohs(sat->sat_addr.s_net)) && - (ntohs(aa->aa_lastnet) >= ntohs(sat->sat_addr.s_net))) - break; - } - return (aa); -} - -struct at_ifaddr * -at_ifawithnet(struct sockaddr_at *sat) -{ - struct at_ifaddr *aa; - - AT_IFADDR_RLOCK(); - aa = at_ifawithnet_locked(sat); - if (aa != NULL) - ifa_ref(&aa->aa_ifa); - AT_IFADDR_RUNLOCK(); - return (aa); -} - -static void -aarpwhohas(struct ifnet *ifp, struct sockaddr_at *sat) -{ - struct mbuf *m; - struct ether_header *eh; - struct ether_aarp *ea; - struct at_ifaddr *aa; - struct llc *llc; - struct sockaddr sa; - - AARPTAB_UNLOCK_ASSERT(); - m = m_gethdr(M_DONTWAIT, MT_DATA); - if (m == NULL) - return; -#ifdef MAC - mac_netatalk_aarp_send(ifp, m); -#endif - m->m_len = sizeof(*ea); - m->m_pkthdr.len = sizeof(*ea); - MH_ALIGN(m, sizeof(*ea)); - - ea = mtod(m, struct ether_aarp *); - bzero((caddr_t)ea, sizeof(*ea)); - - ea->aarp_hrd = htons(AARPHRD_ETHER); - ea->aarp_pro = htons(ETHERTYPE_AT); - ea->aarp_hln = sizeof(ea->aarp_sha); - ea->aarp_pln = sizeof(ea->aarp_spu); - ea->aarp_op = htons(AARPOP_REQUEST); - bcopy(IF_LLADDR(ifp), (caddr_t)ea->aarp_sha, sizeof(ea->aarp_sha)); - - /* - * We need to check whether the output ethernet type should be phase - * 1 or 2. We have the interface that we'll be sending the aarp out. - * We need to find an AppleTalk network on that interface with the - * same address as we're looking for. If the net is phase 2, - * generate an 802.2 and SNAP header. - */ - aa = at_ifawithnet(sat); - if (aa == NULL) { - m_freem(m); - return; - } - - eh = (struct ether_header *)sa.sa_data; - - if (aa->aa_flags & AFA_PHASE2) { - bcopy(atmulticastaddr, eh->ether_dhost, - sizeof(eh->ether_dhost)); - eh->ether_type = htons(sizeof(struct llc) + - sizeof(struct ether_aarp)); - M_PREPEND(m, sizeof(struct llc), M_DONTWAIT); - if (m == NULL) { - ifa_free(&aa->aa_ifa); - return; - } - llc = mtod(m, struct llc *); - llc->llc_dsap = llc->llc_ssap = LLC_SNAP_LSAP; - llc->llc_control = LLC_UI; - bcopy(aarp_org_code, llc->llc_org_code, - sizeof(aarp_org_code)); - llc->llc_ether_type = htons(ETHERTYPE_AARP); - bcopy(&AA_SAT(aa)->sat_addr.s_net, ea->aarp_spnet, - sizeof(ea->aarp_spnet)); - bcopy(&sat->sat_addr.s_net, ea->aarp_tpnet, - sizeof(ea->aarp_tpnet)); - ea->aarp_spnode = AA_SAT(aa)->sat_addr.s_node; - ea->aarp_tpnode = sat->sat_addr.s_node; - } else { - bcopy(ifp->if_broadcastaddr, (caddr_t)eh->ether_dhost, - sizeof(eh->ether_dhost)); - eh->ether_type = htons(ETHERTYPE_AARP); - ea->aarp_spa = AA_SAT(aa)->sat_addr.s_node; - ea->aarp_tpa = sat->sat_addr.s_node; - } - -#ifdef NETATALKDEBUG - printf("aarp: sending request for %u.%u\n", - ntohs(AA_SAT(aa)->sat_addr.s_net), AA_SAT(aa)->sat_addr.s_node); -#endif /* NETATALKDEBUG */ - ifa_free(&aa->aa_ifa); - - sa.sa_len = sizeof(struct sockaddr); - sa.sa_family = AF_UNSPEC; - ifp->if_output(ifp, m, &sa, NULL); -} - -int -aarpresolve(struct ifnet *ifp, struct mbuf *m, struct sockaddr_at *destsat, - u_char *desten) -{ - struct at_ifaddr *aa; - struct aarptab *aat; - - AT_IFADDR_RLOCK(); - if (at_broadcast(destsat)) { - m->m_flags |= M_BCAST; - if ((aa = at_ifawithnet_locked(destsat)) == NULL) { - AT_IFADDR_RUNLOCK(); - m_freem(m); - return (0); - } - if (aa->aa_flags & AFA_PHASE2) - bcopy(atmulticastaddr, (caddr_t)desten, - sizeof(atmulticastaddr)); - else - bcopy(ifp->if_broadcastaddr, (caddr_t)desten, - sizeof(ifp->if_addrlen)); - AT_IFADDR_RUNLOCK(); - return (1); - } - AT_IFADDR_RUNLOCK(); - - AARPTAB_LOCK(); - AARPTAB_LOOK(aat, destsat->sat_addr); - if (aat == NULL) { - /* No entry. */ - aat = aarptnew(&destsat->sat_addr); - - /* We should fail more gracefully. */ - if (aat == NULL) - panic("aarpresolve: no free entry"); - goto done; - } - - /* Found an entry. */ - aat->aat_timer = 0; - if (aat->aat_flags & ATF_COM) { - /* Entry is COMplete. */ - bcopy((caddr_t)aat->aat_enaddr, (caddr_t)desten, - sizeof(aat->aat_enaddr)); - AARPTAB_UNLOCK(); - return (1); - } - - /* Entry has not completed. */ - if (aat->aat_hold) - m_freem(aat->aat_hold); -done: - aat->aat_hold = m; - AARPTAB_UNLOCK(); - aarpwhohas(ifp, destsat); - return (0); -} - -void -aarpintr(struct mbuf *m) -{ - struct arphdr *ar; - struct ifnet *ifp; - - ifp = m->m_pkthdr.rcvif; - if (ifp->if_flags & IFF_NOARP) - goto out; - - if (m->m_len < sizeof(struct arphdr)) - goto out; - - ar = mtod(m, struct arphdr *); - if (ntohs(ar->ar_hrd) != AARPHRD_ETHER) - goto out; - - if (m->m_len < sizeof(struct arphdr) + 2 * ar->ar_hln + - 2 * ar->ar_pln) - goto out; - - switch(ntohs(ar->ar_pro)) { - case ETHERTYPE_AT: - at_aarpinput(ifp, m); - return; - default: - break; - } - -out: - m_freem(m); -} - -static void -at_aarpinput(struct ifnet *ifp, struct mbuf *m) -{ - struct ether_aarp *ea; - struct at_ifaddr *aa; - struct aarptab *aat; - struct ether_header *eh; - struct llc *llc; - struct sockaddr_at sat; - struct sockaddr sa; - struct at_addr spa, tpa, ma; - int op; - u_short net; - - ea = mtod(m, struct ether_aarp *); - - /* Check to see if from my hardware address. */ - if (!bcmp((caddr_t)ea->aarp_sha, IF_LLADDR(ifp), ETHER_ADDR_LEN)) { - m_freem(m); - return; - } - - /* Don't accept requests from broadcast address. */ - if (!bcmp(ea->aarp_sha, ifp->if_broadcastaddr, ifp->if_addrlen)) { - log(LOG_ERR, "aarp: source link address is broadcast\n"); - m_freem(m); - return; - } - - op = ntohs(ea->aarp_op); - bcopy(ea->aarp_tpnet, &net, sizeof(net)); - - if (net != 0) { - /* Should be ATADDR_ANYNET? */ - sat.sat_len = sizeof(struct sockaddr_at); - sat.sat_family = AF_APPLETALK; - sat.sat_addr.s_net = net; - aa = at_ifawithnet(&sat); - if (aa == NULL) { - m_freem(m); - return; - } - bcopy(ea->aarp_spnet, &spa.s_net, sizeof(spa.s_net)); - bcopy(ea->aarp_tpnet, &tpa.s_net, sizeof(tpa.s_net)); - } else { - /* - * Since we don't know the net, we just look for the first - * phase 1 address on the interface. - */ - IF_ADDR_RLOCK(ifp); - for (aa = (struct at_ifaddr *)TAILQ_FIRST(&ifp->if_addrhead); - aa; - aa = (struct at_ifaddr *)aa->aa_ifa.ifa_link.tqe_next) { - if (AA_SAT(aa)->sat_family == AF_APPLETALK && - (aa->aa_flags & AFA_PHASE2) == 0) { - break; - } - } - if (aa == NULL) { - IF_ADDR_RUNLOCK(ifp); - m_freem(m); - return; - } - ifa_ref(&aa->aa_ifa); - IF_ADDR_RUNLOCK(ifp); - tpa.s_net = spa.s_net = AA_SAT(aa)->sat_addr.s_net; - } - - spa.s_node = ea->aarp_spnode; - tpa.s_node = ea->aarp_tpnode; - ma.s_net = AA_SAT(aa)->sat_addr.s_net; - ma.s_node = AA_SAT(aa)->sat_addr.s_node; - - /* - * This looks like it's from us. - */ - if (spa.s_net == ma.s_net && spa.s_node == ma.s_node) { - if (aa->aa_flags & AFA_PROBING) { - /* - * We're probing, someone either responded to our - * probe, or probed for the same address we'd like to - * use. Change the address we're probing for. - */ - callout_stop(&aa->aa_callout); - wakeup(aa); - ifa_free(&aa->aa_ifa); - m_freem(m); - return; - } else if (op != AARPOP_PROBE) { - /* - * This is not a probe, and we're not probing. This - * means that someone's saying they have the same - * source address as the one we're using. Get upset. - */ - ifa_free(&aa->aa_ifa); - log(LOG_ERR, - "aarp: duplicate AT address!! %x:%x:%x:%x:%x:%x\n", - ea->aarp_sha[0], ea->aarp_sha[1], - ea->aarp_sha[2], ea->aarp_sha[3], - ea->aarp_sha[4], ea->aarp_sha[5]); - m_freem(m); - return; - } - } - - AARPTAB_LOCK(); - AARPTAB_LOOK(aat, spa); - if (aat != NULL) { - if (op == AARPOP_PROBE) { - /* - * Someone's probing for spa, dealocate the one we've - * got, so that if the prober keeps the address, - * we'll be able to arp for him. - */ - aarptfree(aat); - AARPTAB_UNLOCK(); - ifa_free(&aa->aa_ifa); - m_freem(m); - return; - } - - bcopy((caddr_t)ea->aarp_sha, (caddr_t)aat->aat_enaddr, - sizeof(ea->aarp_sha)); - aat->aat_flags |= ATF_COM; - if (aat->aat_hold) { - struct mbuf *mhold = aat->aat_hold; - aat->aat_hold = NULL; - AARPTAB_UNLOCK(); - sat.sat_len = sizeof(struct sockaddr_at); - sat.sat_family = AF_APPLETALK; - sat.sat_addr = spa; - (*ifp->if_output)(ifp, mhold, - (struct sockaddr *)&sat, NULL); /* XXX */ - } else - AARPTAB_UNLOCK(); - } else if ((tpa.s_net == ma.s_net) && (tpa.s_node == ma.s_node) - && (op != AARPOP_PROBE) && ((aat = aarptnew(&spa)) != NULL)) { - bcopy((caddr_t)ea->aarp_sha, (caddr_t)aat->aat_enaddr, - sizeof(ea->aarp_sha)); - aat->aat_flags |= ATF_COM; - AARPTAB_UNLOCK(); - } else - AARPTAB_UNLOCK(); - - /* - * Don't respond to responses, and never respond if we're still - * probing. - */ - if (tpa.s_net != ma.s_net || tpa.s_node != ma.s_node || - op == AARPOP_RESPONSE || (aa->aa_flags & AFA_PROBING)) { - ifa_free(&aa->aa_ifa); - m_freem(m); - return; - } - - bcopy((caddr_t)ea->aarp_sha, (caddr_t)ea->aarp_tha, - sizeof(ea->aarp_sha)); - bcopy(IF_LLADDR(ifp), (caddr_t)ea->aarp_sha, sizeof(ea->aarp_sha)); - - /* XXX */ - eh = (struct ether_header *)sa.sa_data; - bcopy((caddr_t)ea->aarp_tha, (caddr_t)eh->ether_dhost, - sizeof(eh->ether_dhost)); - - if (aa->aa_flags & AFA_PHASE2) { - eh->ether_type = htons(sizeof(struct llc) + - sizeof(struct ether_aarp)); - M_PREPEND(m, sizeof(struct llc), M_DONTWAIT); - if (m == NULL) { - ifa_free(&aa->aa_ifa); - return; - } - llc = mtod(m, struct llc *); - llc->llc_dsap = llc->llc_ssap = LLC_SNAP_LSAP; - llc->llc_control = LLC_UI; - bcopy(aarp_org_code, llc->llc_org_code, - sizeof(aarp_org_code)); - llc->llc_ether_type = htons(ETHERTYPE_AARP); - - bcopy(ea->aarp_spnet, ea->aarp_tpnet, - sizeof(ea->aarp_tpnet)); - bcopy(&ma.s_net, ea->aarp_spnet, sizeof(ea->aarp_spnet)); - } else - eh->ether_type = htons(ETHERTYPE_AARP); - ifa_free(&aa->aa_ifa); - - ea->aarp_tpnode = ea->aarp_spnode; - ea->aarp_spnode = ma.s_node; - ea->aarp_op = htons(AARPOP_RESPONSE); - - sa.sa_len = sizeof(struct sockaddr); - sa.sa_family = AF_UNSPEC; - (*ifp->if_output)(ifp, m, &sa, NULL); /* XXX */ - return; -} - -static void -aarptfree(struct aarptab *aat) -{ - - AARPTAB_LOCK_ASSERT(); - if (aat->aat_hold) - m_freem(aat->aat_hold); - aat->aat_hold = NULL; - aat->aat_timer = aat->aat_flags = 0; - aat->aat_ataddr.s_net = 0; - aat->aat_ataddr.s_node = 0; -} - -struct aarptab * -aarptnew(struct at_addr *addr) -{ - int n; - int oldest = -1; - struct aarptab *aat, *aato = NULL; - static int first = 1; - - AARPTAB_LOCK_ASSERT(); - if (first) { - first = 0; - aarptimer_ch = timeout(aarptimer, (caddr_t)0, hz); - } - aat = &aarptab[AARPTAB_HASH(*addr) * AARPTAB_BSIZ]; - for (n = 0; n < AARPTAB_BSIZ; n++, aat++) { - if (aat->aat_flags == 0) - goto out; - if (aat->aat_flags & ATF_PERM) - continue; - if ((int) aat->aat_timer > oldest) { - oldest = aat->aat_timer; - aato = aat; - } - } - if (aato == NULL) - return (NULL); - aat = aato; - aarptfree(aat); -out: - aat->aat_ataddr = *addr; - aat->aat_flags = ATF_INUSE; - return (aat); -} - - -void -aarpprobe(void *arg) -{ - struct ifnet *ifp = arg; - struct mbuf *m; - struct ether_header *eh; - struct ether_aarp *ea; - struct at_ifaddr *aa; - struct llc *llc; - struct sockaddr sa; - - /* - * We need to check whether the output ethernet type should be phase - * 1 or 2. We have the interface that we'll be sending the aarp out. - * We need to find an AppleTalk network on that interface with the - * same address as we're looking for. If the net is phase 2, - * generate an 802.2 and SNAP header. - */ - AARPTAB_LOCK(); - for (aa = (struct at_ifaddr *)TAILQ_FIRST(&ifp->if_addrhead); aa; - aa = (struct at_ifaddr *)aa->aa_ifa.ifa_link.tqe_next) { - if (AA_SAT(aa)->sat_family == AF_APPLETALK && - (aa->aa_flags & AFA_PROBING)) - break; - } - if (aa == NULL) { - /* Serious error XXX. */ - AARPTAB_UNLOCK(); - printf("aarpprobe why did this happen?!\n"); - return; - } - - if (aa->aa_probcnt <= 0) { - aa->aa_flags &= ~AFA_PROBING; - wakeup(aa); - AARPTAB_UNLOCK(); - return; - } else - callout_reset(&aa->aa_callout, hz / 5, aarpprobe, ifp); - ifa_ref(&aa->aa_ifa); - AARPTAB_UNLOCK(); - - m = m_gethdr(M_DONTWAIT, MT_DATA); - if (m == NULL) { - ifa_free(&aa->aa_ifa); - return; - } -#ifdef MAC - mac_netatalk_aarp_send(ifp, m); -#endif - m->m_len = sizeof(*ea); - m->m_pkthdr.len = sizeof(*ea); - MH_ALIGN(m, sizeof(*ea)); - - ea = mtod(m, struct ether_aarp *); - bzero((caddr_t)ea, sizeof(*ea)); - - ea->aarp_hrd = htons(AARPHRD_ETHER); - ea->aarp_pro = htons(ETHERTYPE_AT); - ea->aarp_hln = sizeof(ea->aarp_sha); - ea->aarp_pln = sizeof(ea->aarp_spu); - ea->aarp_op = htons(AARPOP_PROBE); - bcopy(IF_LLADDR(ifp), (caddr_t)ea->aarp_sha, - sizeof(ea->aarp_sha)); - - eh = (struct ether_header *)sa.sa_data; - - if (aa->aa_flags & AFA_PHASE2) { - bcopy(atmulticastaddr, eh->ether_dhost, - sizeof(eh->ether_dhost)); - eh->ether_type = htons(sizeof(struct llc) + - sizeof(struct ether_aarp)); - M_PREPEND(m, sizeof(struct llc), M_WAIT); - llc = mtod(m, struct llc *); - llc->llc_dsap = llc->llc_ssap = LLC_SNAP_LSAP; - llc->llc_control = LLC_UI; - bcopy(aarp_org_code, llc->llc_org_code, - sizeof(aarp_org_code)); - llc->llc_ether_type = htons(ETHERTYPE_AARP); - - bcopy(&AA_SAT(aa)->sat_addr.s_net, ea->aarp_spnet, - sizeof(ea->aarp_spnet)); - bcopy(&AA_SAT(aa)->sat_addr.s_net, ea->aarp_tpnet, - sizeof(ea->aarp_tpnet)); - ea->aarp_spnode = ea->aarp_tpnode = - AA_SAT(aa)->sat_addr.s_node; - } else { - bcopy(ifp->if_broadcastaddr, (caddr_t)eh->ether_dhost, - sizeof(eh->ether_dhost)); - eh->ether_type = htons(ETHERTYPE_AARP); - ea->aarp_spa = ea->aarp_tpa = AA_SAT(aa)->sat_addr.s_node; - } - -#ifdef NETATALKDEBUG - printf("aarp: sending probe for %u.%u\n", - ntohs(AA_SAT(aa)->sat_addr.s_net), AA_SAT(aa)->sat_addr.s_node); -#endif /* NETATALKDEBUG */ - ifa_free(&aa->aa_ifa); - - sa.sa_len = sizeof(struct sockaddr); - sa.sa_family = AF_UNSPEC; - (*ifp->if_output)(ifp, m, &sa, NULL); /* XXX */ - aa->aa_probcnt--; -} - -void -aarp_clean(void) -{ - struct aarptab *aat; - int i; - - untimeout(aarptimer, 0, aarptimer_ch); - AARPTAB_LOCK(); - for (i = 0, aat = aarptab; i < AARPTAB_SIZE; i++, aat++) { - if (aat->aat_hold) { - m_freem(aat->aat_hold); - aat->aat_hold = NULL; - } - } - AARPTAB_UNLOCK(); -} |