diff options
Diffstat (limited to 'c/src/lib/libnetworking/net/if_ethersubr.c')
| -rw-r--r-- | c/src/lib/libnetworking/net/if_ethersubr.c | 997 |
1 files changed, 0 insertions, 997 deletions
diff --git a/c/src/lib/libnetworking/net/if_ethersubr.c b/c/src/lib/libnetworking/net/if_ethersubr.c deleted file mode 100644 index 2a6446ebb6..0000000000 --- a/c/src/lib/libnetworking/net/if_ethersubr.c +++ /dev/null @@ -1,997 +0,0 @@ -/* - * Copyright (c) 1982, 1989, 1993 - * The Regents of the University of California. 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. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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. - * - * @(#)if_ethersubr.c 8.1 (Berkeley) 6/10/93 - * $Id$ - */ - -#include <sys/param.h> -#include <sys/systm.h> -#include <sys/kernel.h> -#include <sys/malloc.h> -#include <sys/mbuf.h> -#include <sys/protosw.h> -#include <sys/socket.h> -#include <sys/ioctl.h> -#include <sys/errno.h> -#include <sys/syslog.h> -#include <sys/sysctl.h> - -#include <net/if.h> -#include <net/netisr.h> -#include <net/route.h> -#include <net/if_llc.h> -#include <net/if_dl.h> -#include <net/if_types.h> -#include <net/ethernet.h> - -#ifdef INET -#include <netinet/in.h> -#include <netinet/in_var.h> -#endif -#include <netinet/if_ether.h> - -#ifdef IPX -#include <netipx/ipx.h> -#include <netipx/ipx_if.h> -#endif - -#ifdef NS -#include <netns/ns.h> -#include <netns/ns_if.h> -ushort ns_nettype; -int ether_outputdebug = 0; -int ether_inputdebug = 0; -#endif - -#ifdef ISO -#include <netiso/argo_debug.h> -#include <netiso/iso.h> -#include <netiso/iso_var.h> -#include <netiso/iso_snpac.h> -#endif - -/*#ifdef LLC -#include <netccitt/dll.h> -#include <netccitt/llc_var.h> -#endif*/ - -#if defined(LLC) && defined(CCITT) -extern struct ifqueue pkintrq; -#endif - -#ifdef NETATALK -#include <netatalk/at.h> -#include <netatalk/at_var.h> -#include <netatalk/at_extern.h> - -#define llc_snap_org_code llc_un.type_snap.org_code -#define llc_snap_ether_type llc_un.type_snap.ether_type - -extern u_char at_org_code[ 3 ]; -extern u_char aarp_org_code[ 3 ]; -#endif NETATALK - -u_char etherbroadcastaddr[6] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; -#define senderr(e) { error = (e); goto bad;} - -/* - * Ethernet output routine. - * Encapsulate a packet of type family for the local net. - * Use trailer local net encapsulation if enough data in first - * packet leaves a multiple of 512 bytes of data in remainder. - * Assumes that ifp is actually pointer to arpcom structure. - */ -int -ether_output(ifp, m0, dst, rt0) - register struct ifnet *ifp; - struct mbuf *m0; - struct sockaddr *dst; - struct rtentry *rt0; -{ - short type; - int s, error = 0; -#ifdef NS - u_char *cp - register struct ifqueue *inq; - register struct mbuf *m2; -#endif - u_char edst[6]; - register struct mbuf *m = m0; - register struct rtentry *rt; - struct mbuf *mcopy = (struct mbuf *)0; - register struct ether_header *eh; - int off, len = m->m_pkthdr.len; - struct arpcom *ac = (struct arpcom *)ifp; -#ifdef NETATALK - struct at_ifaddr *aa; -#endif NETATALK - - if ((ifp->if_flags & (IFF_UP|IFF_RUNNING)) != (IFF_UP|IFF_RUNNING)) - senderr(ENETDOWN); - rt = rt0; - if (rt) { - if ((rt->rt_flags & RTF_UP) == 0) { - rt0 = rt = rtalloc1(dst, 1, 0UL); - if (rt0) - rt->rt_refcnt--; - else - senderr(EHOSTUNREACH); - } - if (rt->rt_flags & RTF_GATEWAY) { - if (rt->rt_gwroute == 0) - goto lookup; - if (((rt = rt->rt_gwroute)->rt_flags & RTF_UP) == 0) { - rtfree(rt); rt = rt0; - lookup: rt->rt_gwroute = rtalloc1(rt->rt_gateway, 1, - 0UL); - if ((rt = rt->rt_gwroute) == 0) - senderr(EHOSTUNREACH); - } - } - if (rt->rt_flags & RTF_REJECT) - if (rt->rt_rmx.rmx_expire == 0 || - rtems_bsdnet_seconds_since_boot() < rt->rt_rmx.rmx_expire) - senderr(rt == rt0 ? EHOSTDOWN : EHOSTUNREACH); - } - switch (dst->sa_family) { - -#ifdef INET - case AF_INET: - if (!arpresolve(ac, rt, m, dst, edst, rt0)) - return (0); /* if not yet resolved */ - /* If broadcasting on a simplex interface, loopback a copy */ - if ((m->m_flags & M_BCAST) && (ifp->if_flags & IFF_SIMPLEX)) - mcopy = m_copy(m, 0, (int)M_COPYALL); - off = m->m_pkthdr.len - m->m_len; - type = htons(ETHERTYPE_IP); - break; -#endif -#ifdef IPX - case AF_IPX: - { - struct ifaddr *ia; - - type = htons(ETHERTYPE_IPX); - bcopy((caddr_t)&(((struct sockaddr_ipx *)dst)->sipx_addr.x_host), - (caddr_t)edst, sizeof (edst)); - for (ia = ifp->if_addrlist; ia != NULL; ia = ia->ifa_next) - if(ia->ifa_addr->sa_family == AF_IPX && - !bcmp((caddr_t)edst, - (caddr_t)&((struct ipx_ifaddr *)ia)->ia_addr.sipx_addr.x_host, - sizeof(edst))) - return (looutput(ifp, m, dst, rt)); - /* If broadcasting on a simplex interface, loopback a copy */ - if ((m->m_flags & M_BCAST) && (ifp->if_flags & IFF_SIMPLEX)) - mcopy = m_copy(m, 0, (int)M_COPYALL); - break; - } -#endif -#ifdef NETATALK - case AF_APPLETALK: - { - struct sockaddr_at *sat = (struct sockaddr_at *)dst; - - /* - * super hack.. - * Most of this loopback code should move into the appletalk - * code, but it's here for now.. remember to move it! [JRE] - * This may not get the same interface we started with - * fix asap. XXX - */ - aa = at_ifawithnet( sat ); - if (aa == NULL) { - goto bad; - } - if( aa->aa_ifa.ifa_ifp != ifp ) { - (*aa->aa_ifa.ifa_ifp->if_output)(aa->aa_ifa.ifa_ifp, - m,dst,rt); - } - if (((sat->sat_addr.s_net == ATADDR_ANYNET) - && (sat->sat_addr.s_node == ATADDR_ANYNODE)) - || ((sat->sat_addr.s_net == aa->aa_addr.sat_addr.s_net ) - && (sat->sat_addr.s_node == aa->aa_addr.sat_addr.s_node))) { - (void) looutput(ifp, m, dst, rt); - return(0); - } - - if (!aarpresolve(ac, m, (struct sockaddr_at *)dst, edst)) { -#ifdef NETATALKDEBUG - extern char *prsockaddr(struct sockaddr *); - printf("aarpresolv: failed for %s\n", prsockaddr(dst)); -#endif NETATALKDEBUG - return (0); - } - - /* - * If broadcasting on a simplex interface, loopback a copy - */ - if ((m->m_flags & M_BCAST) && (ifp->if_flags & IFF_SIMPLEX)) - mcopy = m_copy(m, 0, (int)M_COPYALL); - } - /* - * In the phase 2 case, we need to prepend an mbuf for the llc header. - * Since we must preserve the value of m, which is passed to us by - * value, we m_copy() the first mbuf, and use it for our llc header. - */ - if ( aa->aa_flags & AFA_PHASE2 ) { - struct llc llc; - - M_PREPEND(m, sizeof(struct llc), M_WAIT); - len += sizeof(struct llc); - llc.llc_dsap = llc.llc_ssap = LLC_SNAP_LSAP; - llc.llc_control = LLC_UI; - bcopy(at_org_code, llc.llc_snap_org_code, sizeof(at_org_code)); - llc.llc_snap_ether_type = htons( ETHERTYPE_AT ); - bcopy(&llc, mtod(m, caddr_t), sizeof(struct llc)); - type = htons(m->m_pkthdr.len); - } else { - type = htons(ETHERTYPE_AT); - } - break; -#endif NETATALK -#ifdef NS - case AF_NS: - switch(ns_nettype){ - default: - case 0x8137: /* Novell Ethernet_II Ethernet TYPE II */ - type = 0x8137; - break; - case 0x0: /* Novell 802.3 */ - type = htons( m->m_pkthdr.len); - break; - case 0xe0e0: /* Novell 802.2 and Token-Ring */ - M_PREPEND(m, 3, M_WAIT); - type = htons( m->m_pkthdr.len); - cp = mtod(m, u_char *); - *cp++ = 0xE0; - *cp++ = 0xE0; - *cp++ = 0x03; - break; - } - bcopy((caddr_t)&(((struct sockaddr_ns *)dst)->sns_addr.x_host), - (caddr_t)edst, sizeof (edst)); - if (!bcmp((caddr_t)edst, (caddr_t)&ns_thishost, sizeof(edst))){ - m->m_pkthdr.rcvif = ifp; - schednetisr(NETISR_NS); - inq = &nsintrq; - s = splimp(); - if (IF_QFULL(inq)) { - IF_DROP(inq); - m_freem(m); - } else - IF_ENQUEUE(inq, m); - splx(s); - return (error); - } - if (!bcmp((caddr_t)edst, (caddr_t)&ns_broadhost, sizeof(edst))){ - m2 = m_copy(m, 0, (int)M_COPYALL); - m2->m_pkthdr.rcvif = ifp; - schednetisr(NETISR_NS); - inq = &nsintrq; - s = splimp(); - if (IF_QFULL(inq)) { - IF_DROP(inq); - m_freem(m2); - } else - IF_ENQUEUE(inq, m2); - splx(s); - } - /* If broadcasting on a simplex interface, loopback a copy */ - if ((m->m_flags & M_BCAST) && (ifp->if_flags & IFF_SIMPLEX)){ - mcopy = m_copy(m, 0, (int)M_COPYALL); - } - break; -#endif /* NS */ -#ifdef ISO - case AF_ISO: { - int snpalen; - struct llc *l; - register struct sockaddr_dl *sdl; - - if (rt && (sdl = (struct sockaddr_dl *)rt->rt_gateway) && - sdl->sdl_family == AF_LINK && sdl->sdl_alen > 0) { - bcopy(LLADDR(sdl), (caddr_t)edst, sizeof(edst)); - } else if (error = - iso_snparesolve(ifp, (struct sockaddr_iso *)dst, - (char *)edst, &snpalen)) - goto bad; /* Not Resolved */ - /* If broadcasting on a simplex interface, loopback a copy */ - if (*edst & 1) - m->m_flags |= (M_BCAST|M_MCAST); - if ((m->m_flags & M_BCAST) && (ifp->if_flags & IFF_SIMPLEX) && - (mcopy = m_copy(m, 0, (int)M_COPYALL))) { - M_PREPEND(mcopy, sizeof (*eh), M_DONTWAIT); - if (mcopy) { - eh = mtod(mcopy, struct ether_header *); - bcopy((caddr_t)edst, - (caddr_t)eh->ether_dhost, sizeof (edst)); - bcopy((caddr_t)ac->ac_enaddr, - (caddr_t)eh->ether_shost, sizeof (edst)); - } - } - M_PREPEND(m, 3, M_DONTWAIT); - if (m == NULL) - return (0); - type = htons(m->m_pkthdr.len); - l = mtod(m, struct llc *); - l->llc_dsap = l->llc_ssap = LLC_ISO_LSAP; - l->llc_control = LLC_UI; - len += 3; - IFDEBUG(D_ETHER) - int i; - printf("unoutput: sending pkt to: "); - for (i=0; i<6; i++) - printf("%x ", edst[i] & 0xff); - printf("\n"); - ENDDEBUG - } break; -#endif /* ISO */ -#ifdef LLC -/* case AF_NSAP: */ - case AF_CCITT: { - register struct sockaddr_dl *sdl = - (struct sockaddr_dl *) rt -> rt_gateway; - - if (sdl && sdl->sdl_family == AF_LINK - && sdl->sdl_alen > 0) { - bcopy(LLADDR(sdl), (char *)edst, - sizeof(edst)); - } else goto bad; /* Not a link interface ? Funny ... */ - if ((ifp->if_flags & IFF_SIMPLEX) && (*edst & 1) && - (mcopy = m_copy(m, 0, (int)M_COPYALL))) { - M_PREPEND(mcopy, sizeof (*eh), M_DONTWAIT); - if (mcopy) { - eh = mtod(mcopy, struct ether_header *); - bcopy((caddr_t)edst, - (caddr_t)eh->ether_dhost, sizeof (edst)); - bcopy((caddr_t)ac->ac_enaddr, - (caddr_t)eh->ether_shost, sizeof (edst)); - } - } - type = htons(m->m_pkthdr.len); -#ifdef LLC_DEBUG - { - int i; - register struct llc *l = mtod(m, struct llc *); - - printf("ether_output: sending LLC2 pkt to: "); - for (i=0; i<6; i++) - printf("%x ", edst[i] & 0xff); - printf(" len 0x%x dsap 0x%x ssap 0x%x control 0x%x\n", - type & 0xff, l->llc_dsap & 0xff, l->llc_ssap &0xff, - l->llc_control & 0xff); - - } -#endif /* LLC_DEBUG */ - } break; -#endif /* LLC */ - - case AF_UNSPEC: - eh = (struct ether_header *)dst->sa_data; - (void)memcpy(edst, eh->ether_dhost, sizeof (edst)); - type = eh->ether_type; - break; - - default: - printf("%s%d: can't handle af%d\n", ifp->if_name, ifp->if_unit, - dst->sa_family); - senderr(EAFNOSUPPORT); - } - - - if (mcopy) - (void) looutput(ifp, mcopy, dst, rt); - /* - * Add local net header. If no space in first mbuf, - * allocate another. - */ - M_PREPEND(m, sizeof (struct ether_header), M_DONTWAIT); - if (m == 0) - senderr(ENOBUFS); - eh = mtod(m, struct ether_header *); - (void)memcpy(&eh->ether_type, &type, - sizeof(eh->ether_type)); - (void)memcpy(eh->ether_dhost, edst, sizeof (edst)); - (void)memcpy(eh->ether_shost, ac->ac_enaddr, - sizeof(eh->ether_shost)); - s = splimp(); - /* - * Queue message on interface, and start output if interface - * not yet active. - */ - if (IF_QFULL(&ifp->if_snd)) { - IF_DROP(&ifp->if_snd); - splx(s); - senderr(ENOBUFS); - } - IF_ENQUEUE(&ifp->if_snd, m); - if ((ifp->if_flags & IFF_OACTIVE) == 0) - (*ifp->if_start)(ifp); - splx(s); - ifp->if_obytes += len + sizeof (struct ether_header); - if (m->m_flags & M_MCAST) - ifp->if_omcasts++; - return (error); - -bad: - if (m) - m_freem(m); - return (error); -} - -/* - * Process a received Ethernet packet; - * the packet is in the mbuf chain m without - * the ether header, which is provided separately. - */ -void -ether_input(ifp, eh, m) - struct ifnet *ifp; - register struct ether_header *eh; - struct mbuf *m; -{ - register struct ifqueue *inq; - u_short ether_type; -#ifdef NS - u_short *checksum; -#endif - int s; -#if defined (ISO) || defined (LLC) || defined(NETATALK) - register struct llc *l; -#endif - - if ((ifp->if_flags & IFF_UP) == 0) { - m_freem(m); - return; - } - ifp->if_ibytes += m->m_pkthdr.len + sizeof (*eh); - if (bcmp((caddr_t)etherbroadcastaddr, (caddr_t)eh->ether_dhost, - sizeof(etherbroadcastaddr)) == 0) - m->m_flags |= M_BCAST; - else if (eh->ether_dhost[0] & 1) - m->m_flags |= M_MCAST; - if (m->m_flags & (M_BCAST|M_MCAST)) - ifp->if_imcasts++; - - /* - * RTEMS addition -- allow application to `tap into' - * the incoming packet stream. - */ - if (ifp->if_tap && (*ifp->if_tap)(ifp, eh, m)) { - m_freem(m); - return; - } - - ether_type = ntohs(eh->ether_type); - - switch (ether_type) { -#ifdef INET - case ETHERTYPE_IP: - schednetisr(NETISR_IP); - inq = &ipintrq; - break; - - case ETHERTYPE_ARP: - schednetisr(NETISR_ARP); - inq = &arpintrq; - break; -#endif -#ifdef IPX - case ETHERTYPE_IPX: - schednetisr(NETISR_IPX); - inq = &ipxintrq; - break; -#endif -#ifdef NS - case 0x8137: /* Novell Ethernet_II Ethernet TYPE II */ - schednetisr(NETISR_NS); - inq = &nsintrq; - break; - -#endif /* NS */ -#ifdef NETATALK - case ETHERTYPE_AT: - schednetisr(NETISR_ATALK); - inq = &atintrq1; - break; - case ETHERTYPE_AARP: - /* probably this should be done with a NETISR as well */ - aarpinput((struct arpcom *)ifp, m); /* XXX */ - return; -#endif NETATALK - default: -#ifdef NS - checksum = mtod(m, ushort *); - /* Novell 802.3 */ - if ((ether_type <= ETHERMTU) && - ((*checksum == 0xffff) || (*checksum == 0xE0E0))){ - if(*checksum == 0xE0E0) { - m->m_pkthdr.len -= 3; - m->m_len -= 3; - m->m_data += 3; - } - schednetisr(NETISR_NS); - inq = &nsintrq; - break; - } -#endif /* NS */ -#if defined (ISO) || defined (LLC) || defined(NETATALK) - if (ether_type > ETHERMTU) - goto dropanyway; - l = mtod(m, struct llc *); - switch (l->llc_dsap) { -#ifdef NETATALK - case LLC_SNAP_LSAP: - switch (l->llc_control) { - case LLC_UI: - if (l->llc_ssap != LLC_SNAP_LSAP) - goto dropanyway; - - if (Bcmp(&(l->llc_snap_org_code)[0], at_org_code, - sizeof(at_org_code)) == 0 && - ntohs(l->llc_snap_ether_type) == ETHERTYPE_AT) { - inq = &atintrq2; - m_adj( m, sizeof( struct llc )); - schednetisr(NETISR_ATALK); - break; - } - - if (Bcmp(&(l->llc_snap_org_code)[0], aarp_org_code, - sizeof(aarp_org_code)) == 0 && - ntohs(l->llc_snap_ether_type) == ETHERTYPE_AARP) { - m_adj( m, sizeof( struct llc )); - aarpinput((struct arpcom *)ifp, m); /* XXX */ - return; - } - - default: - goto dropanyway; - } - break; -#endif NETATALK -#ifdef ISO - case LLC_ISO_LSAP: - switch (l->llc_control) { - case LLC_UI: - /* LLC_UI_P forbidden in class 1 service */ - if ((l->llc_dsap == LLC_ISO_LSAP) && - (l->llc_ssap == LLC_ISO_LSAP)) { - /* LSAP for ISO */ - if (m->m_pkthdr.len > ether_type) - m_adj(m, ether_type - m->m_pkthdr.len); - m->m_data += 3; /* XXX */ - m->m_len -= 3; /* XXX */ - m->m_pkthdr.len -= 3; /* XXX */ - M_PREPEND(m, sizeof *eh, M_DONTWAIT); - if (m == 0) - return; - *mtod(m, struct ether_header *) = *eh; - IFDEBUG(D_ETHER) - printf("clnp packet"); - ENDDEBUG - schednetisr(NETISR_ISO); - inq = &clnlintrq; - break; - } - goto dropanyway; - - case LLC_XID: - case LLC_XID_P: - if(m->m_len < 6) - goto dropanyway; - l->llc_window = 0; - l->llc_fid = 9; - l->llc_class = 1; - l->llc_dsap = l->llc_ssap = 0; - /* Fall through to */ - case LLC_TEST: - case LLC_TEST_P: - { - struct sockaddr sa; - register struct ether_header *eh2; - int i; - u_char c = l->llc_dsap; - - l->llc_dsap = l->llc_ssap; - l->llc_ssap = c; - if (m->m_flags & (M_BCAST | M_MCAST)) - bcopy((caddr_t)ac->ac_enaddr, - (caddr_t)eh->ether_dhost, 6); - sa.sa_family = AF_UNSPEC; - sa.sa_len = sizeof(sa); - eh2 = (struct ether_header *)sa.sa_data; - for (i = 0; i < 6; i++) { - eh2->ether_shost[i] = c = eh->ether_dhost[i]; - eh2->ether_dhost[i] = - eh->ether_dhost[i] = eh->ether_shost[i]; - eh->ether_shost[i] = c; - } - ifp->if_output(ifp, m, &sa, NULL); - return; - } - default: - m_freem(m); - return; - } - break; -#endif /* ISO */ -#ifdef LLC - case LLC_X25_LSAP: - { - if (m->m_pkthdr.len > ether_type) - m_adj(m, ether_type - m->m_pkthdr.len); - M_PREPEND(m, sizeof(struct sdl_hdr) , M_DONTWAIT); - if (m == 0) - return; - if ( !sdl_sethdrif(ifp, eh->ether_shost, LLC_X25_LSAP, - eh->ether_dhost, LLC_X25_LSAP, 6, - mtod(m, struct sdl_hdr *))) - panic("ETHER cons addr failure"); - mtod(m, struct sdl_hdr *)->sdlhdr_len = ether_type; -#ifdef LLC_DEBUG - printf("llc packet\n"); -#endif /* LLC_DEBUG */ - schednetisr(NETISR_CCITT); - inq = &llcintrq; - break; - } -#endif /* LLC */ - dropanyway: - default: - m_freem(m); - return; - } -#else /* ISO || LLC || NETATALK */ - m_freem(m); - return; -#endif /* ISO || LLC || NETATALK */ - } - - s = splimp(); - if (IF_QFULL(inq)) { - IF_DROP(inq); - m_freem(m); - } else - IF_ENQUEUE(inq, m); - splx(s); -} - -/* - * Perform common duties while attaching to interface list - */ -void -ether_ifattach(ifp) - register struct ifnet *ifp; -{ - register struct ifaddr *ifa; - register struct sockaddr_dl *sdl; - - ifp->if_type = IFT_ETHER; - ifp->if_addrlen = 6; - ifp->if_hdrlen = 14; - ifp->if_mtu = ETHERMTU; - if (ifp->if_baudrate == 0) - ifp->if_baudrate = 10000000; - for (ifa = ifp->if_addrlist; ifa; ifa = ifa->ifa_next) - if ((sdl = (struct sockaddr_dl *)ifa->ifa_addr) && - sdl->sdl_family == AF_LINK) { - sdl->sdl_type = IFT_ETHER; - sdl->sdl_alen = ifp->if_addrlen; - bcopy((caddr_t)((struct arpcom *)ifp)->ac_enaddr, - LLADDR(sdl), ifp->if_addrlen); - break; - } -} - -static u_char ether_ipmulticast_min[6] = - { 0x01, 0x00, 0x5e, 0x00, 0x00, 0x00 }; -static u_char ether_ipmulticast_max[6] = - { 0x01, 0x00, 0x5e, 0x7f, 0xff, 0xff }; -/* - * Add an Ethernet multicast address or range of addresses to the list for a - * given interface. - */ -int -ether_addmulti(ifr, ac) - struct ifreq *ifr; - register struct arpcom *ac; -{ - register struct ether_multi *enm; - struct sockaddr_in *sin; - u_char addrlo[6]; - u_char addrhi[6]; - int set_allmulti = 0; - int s = splimp(); - - switch (ifr->ifr_addr.sa_family) { - - case AF_UNSPEC: - bcopy(ifr->ifr_addr.sa_data, addrlo, 6); - bcopy(addrlo, addrhi, 6); - break; - -#ifdef INET - case AF_INET: - sin = (struct sockaddr_in *)&(ifr->ifr_addr); - if (sin->sin_addr.s_addr == INADDR_ANY) { - /* - * An IP address of INADDR_ANY means listen to all - * of the Ethernet multicast addresses used for IP. - * (This is for the sake of IP multicast routers.) - */ - bcopy(ether_ipmulticast_min, addrlo, 6); - bcopy(ether_ipmulticast_max, addrhi, 6); - set_allmulti = 1; - } - else { - ETHER_MAP_IP_MULTICAST(&sin->sin_addr, addrlo); - bcopy(addrlo, addrhi, 6); - } - break; -#endif - - default: - splx(s); - return (EAFNOSUPPORT); - } - - /* - * Verify that we have valid Ethernet multicast addresses. - */ - if ((addrlo[0] & 0x01) != 1 || (addrhi[0] & 0x01) != 1) { - splx(s); - return (EINVAL); - } - /* - * See if the address range is already in the list. - */ - ETHER_LOOKUP_MULTI(addrlo, addrhi, ac, enm); - if (enm != NULL) { - /* - * Found it; just increment the reference count. - */ - ++enm->enm_refcount; - splx(s); - return (0); - } - /* - * New address or range; malloc a new multicast record - * and link it into the interface's multicast list. - */ - enm = (struct ether_multi *)malloc(sizeof(*enm), M_IFMADDR, M_NOWAIT); - if (enm == NULL) { - splx(s); - return (ENOBUFS); - } - bcopy(addrlo, enm->enm_addrlo, 6); - bcopy(addrhi, enm->enm_addrhi, 6); - enm->enm_ac = ac; - enm->enm_refcount = 1; - enm->enm_next = ac->ac_multiaddrs; - ac->ac_multiaddrs = enm; - ac->ac_multicnt++; - splx(s); - if (set_allmulti) - ac->ac_if.if_flags |= IFF_ALLMULTI; - - /* - * Return ENETRESET to inform the driver that the list has changed - * and its reception filter should be adjusted accordingly. - */ - return (ENETRESET); -} - -/* - * Delete a multicast address record. - */ -int -ether_delmulti(ifr, ac) - struct ifreq *ifr; - register struct arpcom *ac; -{ - register struct ether_multi *enm; - register struct ether_multi **p; - struct sockaddr_in *sin; - u_char addrlo[6]; - u_char addrhi[6]; - int unset_allmulti = 0; - int s = splimp(); - - switch (ifr->ifr_addr.sa_family) { - - case AF_UNSPEC: - bcopy(ifr->ifr_addr.sa_data, addrlo, 6); - bcopy(addrlo, addrhi, 6); - break; - -#ifdef INET - case AF_INET: - sin = (struct sockaddr_in *)&(ifr->ifr_addr); - if (sin->sin_addr.s_addr == INADDR_ANY) { - /* - * An IP address of INADDR_ANY means stop listening - * to the range of Ethernet multicast addresses used - * for IP. - */ - bcopy(ether_ipmulticast_min, addrlo, 6); - bcopy(ether_ipmulticast_max, addrhi, 6); - unset_allmulti = 1; - } - else { - ETHER_MAP_IP_MULTICAST(&sin->sin_addr, addrlo); - bcopy(addrlo, addrhi, 6); - } - break; -#endif - - default: - splx(s); - return (EAFNOSUPPORT); - } - - /* - * Look up the address in our list. - */ - ETHER_LOOKUP_MULTI(addrlo, addrhi, ac, enm); - if (enm == NULL) { - splx(s); - return (ENXIO); - } - if (--enm->enm_refcount != 0) { - /* - * Still some claims to this record. - */ - splx(s); - return (0); - } - /* - * No remaining claims to this record; unlink and free it. - */ - for (p = &enm->enm_ac->ac_multiaddrs; - *p != enm; - p = &(*p)->enm_next) - continue; - *p = (*p)->enm_next; - free(enm, M_IFMADDR); - ac->ac_multicnt--; - splx(s); - if (unset_allmulti) - ac->ac_if.if_flags &= ~IFF_ALLMULTI; - - /* - * Return ENETRESET to inform the driver that the list has changed - * and its reception filter should be adjusted accordingly. - */ - return (ENETRESET); -} - -SYSCTL_NODE(_net_link, IFT_ETHER, ether, CTLFLAG_RW, 0, "Ethernet"); - -int -ether_ioctl(struct ifnet *ifp, int command, caddr_t data) -{ - struct ifaddr *ifa = (struct ifaddr *) data; - struct ifreq *ifr = (struct ifreq *) data; - int error = 0; - - switch (command) { - case SIOCSIFADDR: - ifp->if_flags |= IFF_UP; - - switch (ifa->ifa_addr->sa_family) { -#ifdef INET - case AF_INET: - ifp->if_init(ifp->if_softc); /* before arpwhohas */ - arp_ifinit((struct arpcom *)ifp, ifa); - break; -#endif -#ifdef IPX - /* - * XXX - This code is probably wrong - */ - case AF_IPX: - { - register struct ipx_addr *ina = &(IA_SIPX(ifa)->sipx_addr); - struct arpcom *ac = (struct arpcom *) (ifp->if_softc); - - if (ipx_nullhost(*ina)) - ina->x_host = - *(union ipx_host *) - ac->ac_enaddr; - else { - bcopy((caddr_t) ina->x_host.c_host, - (caddr_t) ac->ac_enaddr, - sizeof(ac->ac_enaddr)); - } - - /* - * Set new address - */ - ifp->if_init(ifp->if_softc); - break; - } -#endif -#ifdef NS - /* - * XXX - This code is probably wrong - */ - case AF_NS: - { - register struct ns_addr *ina = &(IA_SNS(ifa)->sns_addr); - struct arpcom *ac = (struct arpcom *) (ifp->if_softc); - - if (ns_nullhost(*ina)) - ina->x_host = - *(union ns_host *) (ac->ac_enaddr); - else { - bcopy((caddr_t) ina->x_host.c_host, - (caddr_t) ac->ac_enaddr, - sizeof(ac->ac_enaddr)); - } - - /* - * Set new address - */ - ifp->if_init(ifp->if_softc); - break; - } -#endif - default: - ifp->if_init(ifp->if_softc); - break; - } - break; - - case SIOCGIFADDR: - { - struct sockaddr *sa; - - sa = (struct sockaddr *) & ifr->ifr_data; - bcopy(((struct arpcom *)ifp->if_softc)->ac_enaddr, - (caddr_t) sa->sa_data, ETHER_ADDR_LEN); - } - break; - - case SIOCSIFMTU: - /* - * Set the interface MTU. - */ - if (ifr->ifr_mtu > ETHERMTU) { - error = EINVAL; - } else { - ifp->if_mtu = ifr->ifr_mtu; - } - break; - } - return (error); -} |