diff options
Diffstat (limited to 'bsps/powerpc/mpc8260ads/net/if_hdlcsubr.c')
| -rw-r--r-- | bsps/powerpc/mpc8260ads/net/if_hdlcsubr.c | 349 |
1 files changed, 0 insertions, 349 deletions
diff --git a/bsps/powerpc/mpc8260ads/net/if_hdlcsubr.c b/bsps/powerpc/mpc8260ads/net/if_hdlcsubr.c deleted file mode 100644 index 0c9cb8a842..0000000000 --- a/bsps/powerpc/mpc8260ads/net/if_hdlcsubr.c +++ /dev/null @@ -1,349 +0,0 @@ -/* - * Created from if_ethersubr.c by Andy Dachs <a.dachs@sstl.co.uk> - * Surrey Satellite Technology Limited (SSTL), 2001 - * Modified (hacked) to support IP frames transmitted over HDLC. This - * all needs tidying up in future but it does actually work for point - * to point communications. I have an SDL WANic400 synchronous - * communications card that comes with Windows NT drivers. The drivers - * support a mode that they call "Ethernet Emulation". That simply - * puts the IP frame in an HDLC frame without any ethernet header. i.e. - * <HDLC Flag><IpFrame><CRC><HDLC Flag>. There is no addressing beyond - * the IP header information so is only suitable for point to point links - * with a single protocol. "At some point" I will add a Frame Relay header - * but at the moment I have difficulties getting the WANic card driver's - * Frame Relay driver to work. - * - * 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 - */ - -#include <machine/rtems-bsd-kernel-space.h> - -#include <rtems/rtems_bsdnet.h> - -#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/sockio.h> -#include <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> - -#include <netinet/in.h> -#include <netinet/in_var.h> -#include <netinet/if_ether.h> - -#include <stdio.h> - -#include "if_hdlcsubr.h" - -/* -u_char etherbroadcastaddr[6] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; -*/ -#define senderr(e) { error = (e); goto bad;} - -/* - * HDLC output routine. - * Just transmit the packet (hardware adds flags and CRC) - */ -int -hdlc_output(ifp, m0, dst, rt0) - register struct ifnet *ifp; - struct mbuf *m0; - struct sockaddr *dst; - struct rtentry *rt0; -{ - short type; - int s, error = 0; -#if 0 - u_char edst[6]; -#endif - 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; - -/* printk( "hdlc output" ); */ -/* 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 || - rtems_bsdnet_seconds_since_boot() < rt->rt_rmx.rmx_expire) - senderr(rt == rt0 ? EHOSTDOWN : EHOSTUNREACH); - } - switch (dst->sa_family) { - - case AF_INET: -#if 0 - if (!arpresolve(ac, rt, m, dst, edst, rt0)) - return (0); /* if not yet resolved */ -#endif - - /* 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; -#if 0 - case AF_UNSPEC: - eh = (struct ether_header *)dst->sa_data; - (void)memcpy(edst, eh->ether_dhost, sizeof (edst)); - type = eh->ether_type; - break; -#endif - 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); -#if 0 - /* - * Add local net header. If no space in first mbuf, - * allocate another. - */ - M_PREPEND(m, sizeof (struct ether_header), M_DONTWAIT); -#endif - - if (m == 0) - senderr(ENOBUFS); - -#if 0 - 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)); -#endif - - 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 -hdlc_input(ifp, m) - struct ifnet *ifp; - struct mbuf *m; -{ - register struct ifqueue *inq; - int s; - - struct ether_header eh; - - if ((ifp->if_flags & IFF_UP) == 0) { - m_freem(m); - return; - } - ifp->if_ibytes += m->m_pkthdr.len; -/* - if (memcmp((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; - } - - schednetisr(NETISR_IP); - inq = &ipintrq; - - 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 -hdlc_ifattach(ifp) - register struct ifnet *ifp; -{ - register struct ifaddr *ifa; - register struct sockaddr_dl *sdl; - - ifp->if_type = IFT_ETHER; - ifp->if_addrlen = 0; - ifp->if_hdrlen = 0; - ifp->if_mtu = 2048; - if (ifp->if_baudrate == 0) - ifp->if_baudrate = 8000000; - 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; -/* - memcpy(LLADDR(sdl), - (caddr_t)((struct arpcom *)ifp)->ac_enaddr, - ifp->if_addrlen); -*/ - break; - } -} - -/* SYSCTL_NODE(_net_link, IFT_ETHER, ether, CTLFLAG_RW, 0, "Ethernet"); */ - -int -hdlc_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) { -#if 0 -#ifdef INET - case AF_INET: - ifp->if_init(ifp->if_softc); /* before arpwhohas */ - - arp_ifinit((struct arpcom *)ifp, ifa); - break; -#endif -#endif - default: - ifp->if_init(ifp->if_softc); - break; - } - break; - - case SIOCGIFADDR: - { - struct sockaddr *sa; - - sa = (struct sockaddr *) & ifr->ifr_data; -/* - memcpy((caddr_t) sa->sa_data, - ((struct arpcom *)ifp->if_softc)->ac_enaddr, - 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); -} |