1/*- 2 * Copyright (c) 1995, 1996 Matt Thomas <matt@3am-software.com> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. The name of the author may not be used to endorse or promote products 11 * derived from this software withough specific prior written permission 12 * 13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 14 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 15 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 16 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 17 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 19 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 20 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 22 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 23 *
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24 * $Id: pdq_ifsubr.c,v 1.4 1997/03/24 11:32:26 bde Exp $
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24 * $Id: pdq_ifsubr.c,v 1.5 1997/06/14 13:56:07 bde Exp $ |
25 * 26 */ 27 28/* 29 * DEC PDQ FDDI Controller; code for BSD derived operating systems 30 * 31 * This module provide bus independent BSD specific O/S functions. 32 * (ie. it provides an ifnet interface to the rest of the system) 33 */ 34 35
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36#include "opt_inet.h" 37 |
38#include <sys/param.h> 39#include <sys/socket.h> 40#include <sys/sockio.h> 41#if defined(__bsdi__) || defined(__NetBSD__) 42#include <sys/device.h> 43#endif 44 45#include <net/if.h> 46#include <net/if_dl.h> 47 48#include "bpfilter.h" 49#if NBPFILTER > 0 50#include <net/bpf.h> 51#endif 52
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53#if defined(__FreeBSD__) 54#include <net/ethernet.h> 55#include <net/if_arp.h> |
56#ifdef INET 57#include <netinet/in.h> 58#include <netinet/if_ether.h> 59#endif
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55#if defined(__FreeBSD__)
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60#include <netinet/if_fddi.h> 61#else 62#include <net/if_fddi.h> 63#endif 64 65#if defined(__bsdi__) 66#include <i386/isa/isavar.h> 67#endif 68 69#ifdef NS 70#include <netns/ns.h> 71#include <netns/ns_if.h> 72#endif 73 74#if defined(__FreeBSD__) 75#include <dev/pdq/pdqvar.h> 76#include <dev/pdq/pdqreg.h> 77#else 78#include "pdqvar.h" 79#include "pdqreg.h" 80#endif 81 82#if defined(__bsdi__) && _BSDI_VERSION < 199506 /* XXX */ 83static void 84arp_ifinit( 85 struct arpcom *ac, 86 struct ifaddr *ifa) 87{ 88 sc->sc_ac.ac_ipaddr = IA_SIN(ifa)->sin_addr; 89 arpwhohas(&sc->sc_ac, &IA_SIN(ifa)->sin_addr); 90#if _BSDI_VERSION >= 199401 91 ifa->ifa_rtrequest = arp_rtrequest; 92 ifa->ifa_flags |= RTF_CLONING; 93#endif 94#endif 95 96 97void 98pdq_ifinit( 99 pdq_softc_t *sc) 100{ 101 if (sc->sc_if.if_flags & IFF_UP) { 102 sc->sc_if.if_flags |= IFF_RUNNING; 103 if (sc->sc_if.if_flags & IFF_PROMISC) { 104 sc->sc_pdq->pdq_flags |= PDQ_PROMISC; 105 } else { 106 sc->sc_pdq->pdq_flags &= ~PDQ_PROMISC; 107 } 108 if (sc->sc_if.if_flags & IFF_ALLMULTI) { 109 sc->sc_pdq->pdq_flags |= PDQ_ALLMULTI; 110 } else { 111 sc->sc_pdq->pdq_flags &= ~PDQ_ALLMULTI; 112 } 113 if (sc->sc_if.if_flags & IFF_LINK1) { 114 sc->sc_pdq->pdq_flags |= PDQ_PASS_SMT; 115 } else { 116 sc->sc_pdq->pdq_flags &= ~PDQ_PASS_SMT; 117 } 118 sc->sc_pdq->pdq_flags |= PDQ_RUNNING; 119 pdq_run(sc->sc_pdq); 120 } else { 121 sc->sc_if.if_flags &= ~IFF_RUNNING; 122 sc->sc_pdq->pdq_flags &= ~PDQ_RUNNING; 123 pdq_stop(sc->sc_pdq); 124 } 125} 126 127void 128pdq_ifwatchdog( 129 struct ifnet *ifp) 130{ 131 /* 132 * No progress was made on the transmit queue for PDQ_OS_TX_TRANSMIT 133 * seconds. Remove all queued packets. 134 */ 135 136 ifp->if_flags &= ~IFF_OACTIVE; 137 ifp->if_timer = 0; 138 for (;;) { 139 struct mbuf *m; 140 IF_DEQUEUE(&ifp->if_snd, m); 141 if (m == NULL) 142 return; 143 m_freem(m); 144 } 145} 146 147ifnet_ret_t 148pdq_ifstart( 149 struct ifnet *ifp) 150{ 151 pdq_softc_t *sc = (pdq_softc_t *) ((caddr_t) ifp - offsetof(pdq_softc_t, sc_ac.ac_if)); 152 struct ifqueue *ifq = &ifp->if_snd; 153 struct mbuf *m; 154 int tx = 0; 155 156 if ((ifp->if_flags & IFF_RUNNING) == 0) 157 return; 158 159 if (sc->sc_if.if_timer == 0) 160 sc->sc_if.if_timer = PDQ_OS_TX_TIMEOUT; 161 162 if ((sc->sc_pdq->pdq_flags & PDQ_TXOK) == 0) { 163 sc->sc_if.if_flags |= IFF_OACTIVE; 164 return; 165 } 166 for (;; tx = 1) { 167 IF_DEQUEUE(ifq, m); 168 if (m == NULL) 169 break; 170 171 if (pdq_queue_transmit_data(sc->sc_pdq, m) == PDQ_FALSE) { 172 ifp->if_flags |= IFF_OACTIVE; 173 IF_PREPEND(ifq, m); 174 break; 175 } 176 } 177 if (tx) 178 PDQ_DO_TYPE2_PRODUCER(sc->sc_pdq); 179} 180 181void 182pdq_os_receive_pdu( 183 pdq_t *pdq, 184 struct mbuf *m, 185 size_t pktlen) 186{ 187 pdq_softc_t *sc = (pdq_softc_t *) pdq->pdq_os_ctx; 188 struct fddi_header *fh = mtod(m, struct fddi_header *); 189 190 sc->sc_if.if_ipackets++; 191#if NBPFILTER > 0 192 if (sc->sc_bpf != NULL) 193 PDQ_BPF_MTAP(sc, m); 194 if ((fh->fddi_fc & (FDDIFC_L|FDDIFC_F)) != FDDIFC_LLC_ASYNC) { 195 m_freem(m); 196 return; 197 } 198#endif 199 200 m->m_data += sizeof(struct fddi_header); 201 m->m_len -= sizeof(struct fddi_header); 202 m->m_pkthdr.len = pktlen - sizeof(struct fddi_header); 203 m->m_pkthdr.rcvif = &sc->sc_if; 204 fddi_input(&sc->sc_if, fh, m); 205} 206 207void 208pdq_os_restart_transmitter( 209 pdq_t *pdq) 210{ 211 pdq_softc_t *sc = (pdq_softc_t *) pdq->pdq_os_ctx; 212 sc->sc_if.if_flags &= ~IFF_OACTIVE; 213 if (sc->sc_if.if_snd.ifq_head != NULL) { 214 sc->sc_if.if_timer = PDQ_OS_TX_TIMEOUT; 215 pdq_ifstart(&sc->sc_if); 216 } else { 217 sc->sc_if.if_timer = 0; 218 } 219} 220 221void 222pdq_os_transmit_done( 223 pdq_t *pdq, 224 struct mbuf *m) 225{ 226 pdq_softc_t *sc = (pdq_softc_t *) pdq->pdq_os_ctx; 227#if NBPFILTER > 0 228 if (sc->sc_bpf != NULL) 229 PDQ_BPF_MTAP(sc, m); 230#endif 231 m_freem(m); 232 sc->sc_if.if_opackets++; 233} 234 235void 236pdq_os_addr_fill( 237 pdq_t *pdq, 238 pdq_lanaddr_t *addr, 239 size_t num_addrs) 240{ 241 pdq_softc_t *sc = (pdq_softc_t *) pdq->pdq_os_ctx; 242 struct ifmultiaddr *ifma; 243 244 for (ifma = sc->sc_if.if_multiaddrs.lh_first; ifma && num_addrs > 0; 245 ifma = ifma->ifma_link.le_next) { 246 char *mcaddr; 247 if (ifma->ifma_addr->sa_family != AF_LINK) 248 continue; 249 mcaddr = LLADDR((struct sockaddr_dl *)ifma->ifma_addr); 250 ((u_short *) addr->lanaddr_bytes)[0] = ((u_short *) mcaddr)[0]; 251 ((u_short *) addr->lanaddr_bytes)[1] = ((u_short *) mcaddr)[1]; 252 ((u_short *) addr->lanaddr_bytes)[2] = ((u_short *) mcaddr)[2]; 253 addr++; 254 num_addrs--; 255 } 256} 257 258int 259pdq_ifioctl( 260 struct ifnet *ifp, 261 ioctl_cmd_t cmd, 262 caddr_t data) 263{ 264 pdq_softc_t *sc = (pdq_softc_t *) ((caddr_t) ifp - offsetof(pdq_softc_t, sc_ac.ac_if)); 265 int s, error = 0; 266 267 s = splimp(); 268 269 switch (cmd) { 270 case SIOCSIFADDR: { 271 struct ifaddr *ifa = (struct ifaddr *)data; 272 273 ifp->if_flags |= IFF_UP; 274 switch(ifa->ifa_addr->sa_family) { 275#if defined(INET) 276 case AF_INET: { 277 pdq_ifinit(sc); 278 arp_ifinit(&sc->sc_ac, ifa); 279 break; 280 } 281#endif /* INET */ 282 283#if defined(NS) 284 /* This magic copied from if_is.c; I don't use XNS, 285 * so I have no way of telling if this actually 286 * works or not. 287 */ 288 case AF_NS: { 289 struct ns_addr *ina = &(IA_SNS(ifa)->sns_addr); 290 if (ns_nullhost(*ina)) { 291 ina->x_host = *(union ns_host *)(sc->sc_ac.ac_enaddr); 292 } else { 293 ifp->if_flags &= ~IFF_RUNNING; 294 bcopy((caddr_t)ina->x_host.c_host, 295 (caddr_t)sc->sc_ac.ac_enaddr, 296 sizeof sc->sc_ac.ac_enaddr); 297 } 298 299 pdq_ifinit(sc); 300 break; 301 } 302#endif /* NS */ 303 304 default: { 305 pdq_ifinit(sc); 306 break; 307 } 308 } 309 break; 310 } 311 case SIOCGIFADDR: { 312 struct ifreq *ifr = (struct ifreq *)data; 313 bcopy((caddr_t) sc->sc_ac.ac_enaddr, 314 (caddr_t) ((struct sockaddr *)&ifr->ifr_data)->sa_data, 315 6); 316 break; 317 } 318 319 case SIOCSIFFLAGS: { 320 pdq_ifinit(sc); 321 break; 322 } 323 324 case SIOCADDMULTI: 325 case SIOCDELMULTI: 326 /* 327 * Update multicast listeners 328 */ 329 if (sc->sc_if.if_flags & IFF_RUNNING) 330 pdq_run(sc->sc_pdq); 331 error = 0; 332 break; 333 334#if defined(SIOCSIFMTU) 335#if !defined(ifr_mtu) 336#define ifr_mtu ifr_metric 337#endif 338 case SIOCSIFMTU: { 339 struct ifreq *ifr = (struct ifreq *)data; 340 /* 341 * Set the interface MTU. 342 */ 343 if (ifr->ifr_mtu > FDDIMTU) { 344 error = EINVAL; 345 break; 346 } 347 ifp->if_mtu = ifr->ifr_mtu; 348 break; 349 } 350#endif /* SIOCSIFMTU */ 351 352 default: { 353 error = EINVAL; 354 break; 355 } 356 } 357 358 splx(s); 359 return error; 360} 361 362#ifndef IFF_NOTRAILERS 363#define IFF_NOTRAILERS 0 364#endif 365 366void 367pdq_ifattach( 368 pdq_softc_t *sc, 369 ifnet_ret_t (*ifwatchdog)(int unit)) 370{ 371 struct ifnet *ifp = &sc->sc_if; 372 373 ifp->if_flags = IFF_BROADCAST|IFF_SIMPLEX|IFF_NOTRAILERS|IFF_MULTICAST; 374 375#if (defined(__FreeBSD__) && BSD >= 199506) || defined(__NetBSD__) 376 ifp->if_watchdog = pdq_ifwatchdog; 377#else 378 ifp->if_watchdog = ifwatchdog; 379#endif 380 381 ifp->if_ioctl = pdq_ifioctl; 382 ifp->if_output = fddi_output; 383 ifp->if_start = pdq_ifstart; 384#warning "Implement fddi_resolvemulti!" 385/* ifp->if_resolvemulti = ether_resolvemulti; XXX */ 386 387 if_attach(ifp); 388 fddi_ifattach(ifp); 389#if NBPFILTER > 0 390 PDQ_BPFATTACH(sc, DLT_FDDI, sizeof(struct fddi_header)); 391#endif 392}
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