diff options
Diffstat (limited to 'sys/net/if_iso88025subr.c')
| -rw-r--r-- | sys/net/if_iso88025subr.c | 410 |
1 files changed, 0 insertions, 410 deletions
diff --git a/sys/net/if_iso88025subr.c b/sys/net/if_iso88025subr.c deleted file mode 100644 index 1999a3f0490f..000000000000 --- a/sys/net/if_iso88025subr.c +++ /dev/null @@ -1,410 +0,0 @@ -/* - * Copyright (c) 1998, Larry Lile - * All rights reserved. - * - * For latest sources and information on this driver, please - * go to http://anarchy.stdio.com. - * - * Questions, comments or suggestions should be directed to - * Larry Lile <lile@stdio.com>. - * - * 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 unmodified, 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. - * - * $Id: if_iso88025subr.c,v 1.5 1999/01/09 22:45:58 lile Exp $ - * - */ - -/* - * - * General ISO 802.5 (Token Ring) support routines - * - */ - -#include "opt_inet.h" - -#include <sys/param.h> -#include <sys/systm.h> -#include <sys/kernel.h> -#include <sys/malloc.h> -#include <sys/mbuf.h> -#include <sys/socket.h> -#include <sys/sockio.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/if_arp.h> - -#include <net/iso88025.h> - -#ifdef INET -#include <netinet/in.h> -#include <netinet/in_var.h> -#include <netinet/if_ether.h> -#endif - -#if NBPFILTER > 0 -#include <net/bpf.h> -#include <net/bpfdesc.h> -#endif - -#include <machine/clock.h> -#include <machine/md_var.h> - -#include <i386/isa/isa_device.h> - -#include <vm/vm.h> -#include <vm/vm_param.h> -#include <vm/pmap.h> - -#include <sys/kernel.h> -#include <net/iso88025.h> - -void -iso88025_ifattach(ifp) - register struct ifnet *ifp; -{ - register struct ifaddr *ifa = NULL; - register struct sockaddr_dl *sdl; - - ifp->if_type = IFT_ISO88025; - ifp->if_addrlen = 6; - ifp->if_hdrlen=18; - if (ifp->if_baudrate == 0) - ifp->if_baudrate = 16000000; /* 1, 4, or 16Mbit default? */ - if (ifp->if_mtu == 0) - ifp->if_mtu = ISO88025_DEFAULT_MTU; - - ifa = ifnet_addrs[ifp->if_index - 1]; - if (ifa == 0) { - printf("iso88025_ifattach: no lladdr!\n"); - return; - } - sdl = (struct sockaddr_dl *)ifa->ifa_addr; - sdl->sdl_type = IFT_ISO88025; - sdl->sdl_alen = ifp->if_addrlen; - bcopy(((struct arpcom *)ifp)->ac_enaddr, LLADDR(sdl), ifp->if_addrlen); -} - -int -iso88025_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 - 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, ISO88025_ADDR_LEN); - } - break; - - case SIOCSIFMTU: - /* - * Set the interface MTU. - */ - if (ifr->ifr_mtu > ISO88025MTU) { - error = EINVAL; - } else { - ifp->if_mtu = ifr->ifr_mtu; - } - break; - } - return (error); -} - -/* - * ISO88025 encapsulation - */ -int -iso88025_output(ifp, m0, dst, rt0) - register struct ifnet *ifp; - struct mbuf *m0; - struct sockaddr *dst; - struct rtentry *rt0; -{ - register struct iso88025_header *th; - struct iso88025_header gen_th; - register struct iso88025_sockaddr_data *sd = (struct iso88025_sockaddr_data *)dst->sa_data; - register struct llc *l; - register struct sockaddr_dl *sdl = NULL; - int s, error = 0, rif_len = 0; - u_char edst[6]; - register struct mbuf *m = m0; - register struct rtentry *rt; - int len = m->m_pkthdr.len, loop_copy = 0; - struct arpcom *ac = (struct arpcom *)ifp; - - 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 || - time_second < rt->rt_rmx.rmx_expire) - senderr(rt == rt0 ? EHOSTDOWN : EHOSTUNREACH); - } - - /* Calculate routing info length based on arp table entry */ - if (rt && (sdl = (struct sockaddr_dl *)rt->rt_gateway)) - if (sdl->sdl_rcf != NULL) - rif_len = (ntohs(sdl->sdl_rcf) & 0x1f00) >> 8; - - /* Generate a generic 802.5 header for the packet */ - gen_th.ac = 0x10; - gen_th.fc = 0x40; - memcpy(gen_th.iso88025_shost, ac->ac_enaddr, sizeof(ac->ac_enaddr)); - if (rif_len) { - gen_th.iso88025_shost[0] |= 0x80; - if (rif_len > 2) { - gen_th.rcf = sdl->sdl_rcf; - memcpy(gen_th.rseg, sdl->sdl_route, rif_len - 2); - } - } - - - switch (dst->sa_family) { -#ifdef INET - case AF_INET: - if (!arpresolve(ac, rt, m, dst, edst, rt0)) - return (0); /* if not yet resolved */ - /* Add LLC and SNAP headers */ - M_PREPEND(m, 8, M_DONTWAIT) - if (m == 0) - senderr(ENOBUFS); - l = mtod(m, struct llc *); - l->llc_un.type_snap.ether_type = htons(ETHERTYPE_IP); - l->llc_dsap = 0xaa; - l->llc_ssap = 0xaa; - l->llc_un.type_snap.control = 0x3; - l->llc_un.type_snap.org_code[0] = 0x0; - l->llc_un.type_snap.org_code[1] = 0x0; - l->llc_un.type_snap.org_code[2] = 0x0; - memcpy(gen_th.iso88025_dhost, edst, sizeof(edst)); - break; -#endif - - case AF_UNSPEC: - /* - * For AF_UNSPEC sockaddr.sa_data must contain all of the - * mac information needed to send the packet. This allows - * full mac, llc, and source routing function to be controlled. - * llc and source routing information must already be in the - * mbuf provided, ac/fc are set in sa_data. sockaddr.sa_data - * should be a iso88025_sockaddr_data structure see iso88025.h - */ - loop_copy = -1; - sd = (struct iso88025_sockaddr_data *)dst->sa_data; - gen_th.ac = sd->ac; - gen_th.fc = sd->fc; - memcpy(gen_th.iso88025_dhost, sd->ether_dhost, sizeof(sd->ether_dhost)); - memcpy(gen_th.iso88025_shost, sd->ether_shost, sizeof(sd->ether_shost)); - rif_len = 0; - break; - - default: - printf("%s%d: can't handle af%d\n", ifp->if_name, ifp->if_unit, - dst->sa_family); - senderr(EAFNOSUPPORT); - } - - /* - * Add local net header. If no space in first mbuf, - * allocate another. - */ - - M_PREPEND(m, ISO88025_HDR_LEN + rif_len, M_DONTWAIT); - if (m == 0) - senderr(ENOBUFS); - - /* Copy as much of the generic header as is needed into the mbuf */ - th = mtod(m, struct iso88025_header *); - memcpy(th, &gen_th, ISO88025_HDR_LEN + rif_len); - - /* - * If a simplex interface, and the packet is being sent to our - * Ethernet address or a broadcast address, loopback a copy. - * XXX To make a simplex device behave exactly like a duplex - * device, we should copy in the case of sending to our own - * ethernet address (thus letting the original actually appear - * on the wire). However, we don't do that here for security - * reasons and compatibility with the original behavior. - */ - if ((ifp->if_flags & IFF_SIMPLEX) && - (loop_copy != -1)) { - if ((m->m_flags & M_BCAST) || (loop_copy > 0)) { - struct mbuf *n = m_copy(m, 0, (int)M_COPYALL); - /*printf("iso88025_output: if_simloop broadcast.\n");*/ - (void) if_simloop(ifp, n, dst, ISO88025_HDR_LEN); - } else if (bcmp(th->iso88025_dhost, - th->iso88025_shost, ETHER_ADDR_LEN) == 0) { - /*printf("iso88025_output: if_simloop to ourselves.\n");*/ - (void) if_simloop(ifp, m, dst, ISO88025_HDR_LEN); - return(0); /* XXX */ - } - } - - s = splimp(); - /* - * Queue message on interface, and start output if interface - * not yet active. - */ - if (IF_QFULL(&ifp->if_snd)) { - printf("iso88025_output: packet dropped QFULL.\n"); - IF_DROP(&ifp->if_snd); - splx(s); - senderr(ENOBUFS); - } - IF_ENQUEUE(&ifp->if_snd, m); - /*printf("iso88025_output: packet queued.\n");*/ - if ((ifp->if_flags & IFF_OACTIVE) == 0) - (*ifp->if_start)(ifp); - splx(s); - ifp->if_obytes += len + ISO88025_HDR_LEN + 8; - if (m->m_flags & M_MCAST) - ifp->if_omcasts++; - return (error); - -bad: - if (m) - m_freem(m); - /*printf("iso88025_output: something went wrong, bailing to bad.\n");*/ - return (error); -} - -/* - * ISO 88025 de-encapsulation - */ -void -iso88025_input(ifp, th, m) - struct ifnet *ifp; - register struct iso88025_header *th; - struct mbuf *m; -{ - register struct ifqueue *inq; - u_short ether_type; - int s; - register struct llc *l = mtod(m, struct llc *); - - /*printf("iso88025_input: entered.\n");*/ - - /*m->m_pkthdr.len = m->m_len = m->m_len - 8;*/ /* Length of LLC header in our case */ - m->m_pkthdr.len -= 8; - m->m_len -= 8; - m->m_data += 8; /* Length of LLC header in our case */ - - if ((ifp->if_flags & IFF_UP) == 0) { - m_freem(m); - return; - } - ifp->if_ibytes += m->m_pkthdr.len + sizeof (*th); - if (th->iso88025_dhost[0] & 1) { - if (bcmp((caddr_t)etherbroadcastaddr, (caddr_t)th->iso88025_dhost, - sizeof(etherbroadcastaddr)) == 0) - m->m_flags |= M_BCAST; - else - m->m_flags |= M_MCAST; - } - if (m->m_flags & (M_BCAST|M_MCAST)) - ifp->if_imcasts++; - - ether_type = ntohs(l->llc_un.type_snap.ether_type); - - /*printf("iso88025_input: source %6D dest %6D ethertype %x\n", th->iso88025_shost, ":", th->iso88025_dhost, ":", ether_type);*/ - - switch (ether_type) { -#ifdef INET - case ETHERTYPE_IP: - /*printf("iso88025_input: IP Packet\n");*/ - th->iso88025_shost[0] &= ~(0x80); /* Turn off source route bit XXX */ - if (ipflow_fastforward(m)) - return; - schednetisr(NETISR_IP); - inq = &ipintrq; - break; - - case ETHERTYPE_ARP: - /*printf("iso88025_input: ARP Packet\n");*/ - schednetisr(NETISR_ARP); - inq = &arpintrq; - break; -#endif - default: - m_freem(m); - return; - } - - s = splimp(); - if (IF_QFULL(inq)) { - IF_DROP(inq); - m_freem(m); - printf("iso88025_input: Packet dropped (Queue full).\n"); - } else - IF_ENQUEUE(inq, m); - /*printf("iso88025_input: Packet queued.\n");*/ - splx(s); -} |