/* $NetBSD: netio.c,v 1.16 2011/05/19 02:37:41 jakllsch Exp $ */ /*- * Copyright (c) 1996, 1997 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Jason R. Thorpe. * * 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. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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. */ /* * Copyright (c) 1995 Gordon W. Ross * 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. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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. */ /* * This module implements a "raw device" interface suitable for * use by the stand-alone I/O library NFS code. This interface * does not support any "block" access, and exists only for the * purpose of initializing the network interface, getting boot * parameters, and performing the NFS mount. * * At open time, this does: * * find interface - netif_open() * RARP for IP address - rarp_getipaddress() * RPC/bootparams - callrpc(d, RPC_BOOTPARAMS, ...) * RPC/mountd - nfs_mount(sock, ip, path) * * the root file handle from mountd is saved in a global * for use by the NFS open code (NFS/lookup). */ #include <sys/param.h> #include <sys/socket.h> #include <net/if.h> #include <netinet/in.h> #include <netinet/if_ether.h> #include <netinet/in_systm.h> #include <lib/libsa/stand.h> #include <lib/libsa/net.h> #include <lib/libsa/netif.h> #include <lib/libsa/bootparam.h> #include <lib/libsa/nfs.h> #include <lib/libsa/bootp.h> #include <lib/libkern/libkern.h> #include "vaxstand.h" static struct iodesc desc; static int inited = 0; struct iodesc * socktodesc(int sock) { return &desc; } int net_devinit(struct open_file *f, struct netif_driver *drv, u_char *eaddr) { static struct netif best_if; struct iodesc *s; int r; if (inited) return 0; /* find a free socket */ s = &desc; memset(s, 0, sizeof(*s)); best_if.nif_driver = drv; s->io_netif = &best_if; memcpy(s->myea, eaddr, 6); /* * Get info for NFS boot: our IP address, our hostname, * server IP address, and our root path on the server. * There are two ways to do this: The old, Sun way, * and the more modern, BOOTP way. (RFC951, RFC1048) */ #ifdef SUPPORT_BOOTP /* Get boot info using BOOTP way. (RFC951, RFC1048) */ printf("Trying BOOTP\n"); bootp(0); if (myip.s_addr) { printf("Using IP address: %s\n", inet_ntoa(myip)); printf("myip: %s (%s)\n", hostname, inet_ntoa(myip)); } else #endif /* SUPPORT_BOOTP */ { #ifdef SUPPORT_BOOTPARAMS /* Get boot info using RARP and Sun bootparams. */ printf("Trying BOOTPARAMS\n"); /* Get our IP address. (rarp.c) */ if (rarp_getipaddress(0) == -1) return (errno); printf("boot: client IP address: %s\n", inet_ntoa(myip)); /* Get our hostname, server IP address. */ if (bp_whoami(0)) return (errno); printf("boot: client name: %s\n", hostname); /* Get the root pathname. */ if (bp_getfile(0, "root", &rootip, rootpath)) return (errno); #endif } printf("root addr=%s path=%s\n", inet_ntoa(rootip), rootpath); f->f_devdata = s; /* Get the NFS file handle (mount). */ r = nfs_mount(0, rootip, rootpath); if (r) return r; inited = 1; return 0; } ssize_t netif_put(struct iodesc *desc, void *pkt, size_t len) { return (*((struct netif*)desc->io_netif)->nif_driver->netif_put) (desc, pkt, len); } ssize_t netif_get(struct iodesc *desc, void *pkt, size_t len, saseconds_t timo) { return (*((struct netif*)desc->io_netif)->nif_driver->netif_get) (desc, pkt, len, timo); }
