diff options
Diffstat (limited to 'c/src/exec/libnetworking/net/if_loop.c')
| -rw-r--r-- | c/src/exec/libnetworking/net/if_loop.c | 302 |
1 files changed, 0 insertions, 302 deletions
diff --git a/c/src/exec/libnetworking/net/if_loop.c b/c/src/exec/libnetworking/net/if_loop.c deleted file mode 100644 index 345730c729..0000000000 --- a/c/src/exec/libnetworking/net/if_loop.c +++ /dev/null @@ -1,302 +0,0 @@ -/* - * Copyright (c) 1982, 1986, 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_loop.c 8.1 (Berkeley) 6/10/93 - * $Id$ - */ - -/* - * Loopback interface driver for protocol testing and timing. - */ -#include "loop.h" -#if NLOOP > 0 - -#include <sys/param.h> -#include <sys/systm.h> -#include <sys/kernel.h> -#include <sys/mbuf.h> -#include <sys/socket.h> -#include <sys/errno.h> -#include <sys/ioctl.h> -#include <sys/time.h> - -#include <net/if.h> -#include <net/if_types.h> -#include <net/netisr.h> -#include <net/route.h> -#include <net/bpf.h> - -#ifdef INET -#include <netinet/in.h> -#include <netinet/in_systm.h> -#include <netinet/in_var.h> -#include <netinet/ip.h> -#endif - -#ifdef IPX -#include <netipx/ipx.h> -#include <netipx/ipx_if.h> -#endif - -#ifdef NS -#include <netns/ns.h> -#include <netns/ns_if.h> -#endif - -#ifdef ISO -#include <netiso/iso.h> -#include <netiso/iso_var.h> -#endif - -#ifdef NETATALK -#include <netinet/if_ether.h> -#include <netatalk/at.h> -#include <netatalk/at_var.h> -#endif NETATALK - -#include "bpfilter.h" - -static int loioctl __P((struct ifnet *, int, caddr_t)); -static void lortrequest __P((int, struct rtentry *, struct sockaddr *)); - - void rtems_bsdnet_loopattach __P((void *)); -PSEUDO_SET(loopattach, if_loop); - -#ifdef TINY_LOMTU -#define LOMTU (1024+512) -#else -#define LOMTU 16384 -#endif - -struct ifnet loif[NLOOP]; - -/* ARGSUSED */ -void -rtems_bsdnet_loopattach(dummy) - void *dummy; -{ - register struct ifnet *ifp; - register int i = 0; - - for (ifp = loif; i < NLOOP; ifp++) { - ifp->if_name = "lo"; - ifp->if_next = NULL; - ifp->if_unit = i++; - ifp->if_mtu = LOMTU; - ifp->if_flags = IFF_LOOPBACK | IFF_MULTICAST; - ifp->if_ioctl = loioctl; - ifp->if_output = looutput; - ifp->if_type = IFT_LOOP; - ifp->if_hdrlen = 0; - ifp->if_addrlen = 0; - ifp->if_snd.ifq_maxlen = ifqmaxlen; - if_attach(ifp); -#if NBPFILTER > 0 - bpfattach(ifp, DLT_NULL, sizeof(u_int)); -#endif - } -} - -int -looutput(ifp, m, dst, rt) - struct ifnet *ifp; - register struct mbuf *m; - struct sockaddr *dst; - register struct rtentry *rt; -{ - int s, isr; - register struct ifqueue *ifq = 0; - - if ((m->m_flags & M_PKTHDR) == 0) - panic("looutput no HDR"); -#if NBPFILTER > 0 - /* BPF write needs to be handled specially */ - if (dst->sa_family == AF_UNSPEC) { - dst->sa_family = *(mtod(m, int *)); - m->m_len -= sizeof(int); - m->m_pkthdr.len -= sizeof(int); - m->m_data += sizeof(int); - } - - if (ifp->if_bpf) { - /* - * We need to prepend the address family as - * a four byte field. Cons up a dummy header - * to pacify bpf. This is safe because bpf - * will only read from the mbuf (i.e., it won't - * try to free it or keep a pointer a to it). - */ - struct mbuf m0; - u_int af = dst->sa_family; - - m0.m_next = m; - m0.m_len = 4; - m0.m_data = (char *)⁡ - - bpf_mtap(ifp, &m0); - } -#endif - m->m_pkthdr.rcvif = ifp; - - if (rt && rt->rt_flags & (RTF_REJECT|RTF_BLACKHOLE)) { - m_freem(m); - return (rt->rt_flags & RTF_BLACKHOLE ? 0 : - rt->rt_flags & RTF_HOST ? EHOSTUNREACH : ENETUNREACH); - } - ifp->if_opackets++; - ifp->if_obytes += m->m_pkthdr.len; - switch (dst->sa_family) { - -#ifdef INET - case AF_INET: - ifq = &ipintrq; - isr = NETISR_IP; - break; -#endif -#ifdef IPX - case AF_IPX: - ifq = &ipxintrq; - isr = NETISR_IPX; - break; -#endif -#ifdef NS - case AF_NS: - ifq = &nsintrq; - isr = NETISR_NS; - break; -#endif -#ifdef ISO - case AF_ISO: - ifq = &clnlintrq; - isr = NETISR_ISO; - break; -#endif -#ifdef NETATALK - case AF_APPLETALK: - ifq = &atintrq2; - isr = NETISR_ATALK; - break; -#endif NETATALK - default: - printf("lo%d: can't handle af%d\n", ifp->if_unit, - dst->sa_family); - m_freem(m); - return (EAFNOSUPPORT); - } - s = splimp(); - if (IF_QFULL(ifq)) { - IF_DROP(ifq); - m_freem(m); - splx(s); - return (ENOBUFS); - } - IF_ENQUEUE(ifq, m); - schednetisr(isr); - ifp->if_ipackets++; - ifp->if_ibytes += m->m_pkthdr.len; - splx(s); - return (0); -} - -/* ARGSUSED */ -static void -lortrequest(cmd, rt, sa) - int cmd; - struct rtentry *rt; - struct sockaddr *sa; -{ - if (rt) { - rt->rt_rmx.rmx_mtu = rt->rt_ifp->if_mtu; /* for ISO */ - /* - * For optimal performance, the send and receive buffers - * should be at least twice the MTU plus a little more for - * overhead. - */ - rt->rt_rmx.rmx_recvpipe = - rt->rt_rmx.rmx_sendpipe = 3 * LOMTU; - } -} - -/* - * Process an ioctl request. - */ -/* ARGSUSED */ -static int -loioctl(ifp, cmd, data) - register struct ifnet *ifp; - int cmd; - caddr_t data; -{ - register struct ifaddr *ifa; - register struct ifreq *ifr = (struct ifreq *)data; - register int error = 0; - - switch (cmd) { - - case SIOCSIFADDR: - ifp->if_flags |= IFF_UP | IFF_RUNNING; - ifa = (struct ifaddr *)data; - ifa->ifa_rtrequest = lortrequest; - /* - * Everything else is done at a higher level. - */ - break; - - case SIOCADDMULTI: - case SIOCDELMULTI: - if (ifr == 0) { - error = EAFNOSUPPORT; /* XXX */ - break; - } - switch (ifr->ifr_addr.sa_family) { - -#ifdef INET - case AF_INET: - break; -#endif - - default: - error = EAFNOSUPPORT; - break; - } - break; - - case SIOCSIFMTU: - ifp->if_mtu = ifr->ifr_mtu; - break; - - default: - error = EINVAL; - } - return (error); -} -#endif /* NLOOP > 0 */ |