/* $NetBSD: netio.c,v 1.2 1997/10/05 18:26:38 thorpej 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. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the NetBSD * Foundation, Inc. and its contributors. * 4. Neither the name of The NetBSD Foundation 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 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. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * 4. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Gordon W. Ross * * 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 #include #include #include #include #include #include "stand.h" #include "samachdep.h" #include "net.h" #include "netif.h" #include "bootparam.h" #include "nfs.h" extern int nfs_root_node[]; /* XXX - get from nfs_mount() */ struct in_addr myip, rootip, gateip; n_long netmask; char rootpath[FNAME_SIZE]; int netdev_sock = -1; static int open_count; int netio_ask = 0; /* default to bootparam, can override */ static char input_line[100]; /* Why be any different? */ #define SUN_BOOTPARAMS /* * Called by devopen after it sets f->f_dev to our devsw entry. * This opens the low-level device and sets f->f_devdata. */ int netopen(f, devname) struct open_file *f; char *devname; /* Device part of file name (or NULL). */ { int error = 0; /* On first open, do netif open, mount, etc. */ if (open_count == 0) { /* Find network interface. */ if ((netdev_sock = netif_open(devname)) < 0) return (error=ENXIO); if ((error = netmountroot(f, devname)) != 0) return (error); } open_count++; f->f_devdata = nfs_root_node; return (error); } int netclose(f) struct open_file *f; { /* On last close, do netif close, etc. */ if (open_count > 0) if (--open_count == 0) netif_close(netdev_sock); f->f_devdata = NULL; } int netstrategy(devdata, func, dblk, size, v_buf, rsize) void *devdata; int func; daddr_t dblk; size_t size; void *v_buf; size_t *rsize; { *rsize = size; return EIO; } int netmountroot(f, devname) struct open_file *f; char *devname; /* Device part of file name (or NULL). */ { int error; struct iodesc *d; if (netio_ask) { get_my_ip: printf("My IP address? "); bzero(input_line, sizeof(input_line)); gets(input_line); if ((myip.s_addr = inet_addr(input_line)) == htonl(INADDR_NONE)) { printf("invalid IP address: %s\n", input_line); goto get_my_ip; } get_my_netmask: printf("My netmask? "); bzero(input_line, sizeof(input_line)); gets(input_line); if ((netmask = inet_addr(input_line)) == htonl(INADDR_NONE)) { printf("invalid netmask: %s\n", input_line); goto get_my_netmask; } get_my_gateway: printf("My gateway? "); bzero(input_line, sizeof(input_line)); gets(input_line); if ((gateip.s_addr = inet_addr(input_line)) == htonl(INADDR_NONE)) { printf("invalid IP address: %s\n", input_line); goto get_my_gateway; } get_server_ip: printf("Server IP address? "); bzero(input_line, sizeof(input_line)); gets(input_line); if ((rootip.s_addr = inet_addr(input_line)) == htonl(INADDR_NONE)) { printf("invalid IP address: %s\n", input_line); goto get_server_ip; } get_server_path: printf("Server path? "); bzero(rootpath, sizeof(rootpath)); gets(rootpath); if (rootpath[0] == '\0' || rootpath[0] == '\n') goto get_server_path; if ((d = socktodesc(netdev_sock)) == NULL) return (EMFILE); d->myip = myip; goto do_nfs_mount; } /* * 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 SUN_BOOTPARAMS /* Get boot info using RARP and Sun bootparams. */ /* Get our IP address. (rarp.c) */ if (rarp_getipaddress(netdev_sock) == -1) return (errno); printf("boot: client IP address: %s\n", inet_ntoa(myip)); /* Get our hostname, server IP address. */ if (bp_whoami(netdev_sock)) return (errno); printf("boot: client name: %s\n", hostname); /* Get the root pathname. */ if (bp_getfile(netdev_sock, "root", &rootip, rootpath)) return (errno); #else /* Get boot info using BOOTP way. (RFC951, RFC1048) */ bootp(netdev_sock); printf("Using IP address: %s\n", inet_ntoa(myip)); printf("myip: %s (%s)", hostname, inet_ntoa(myip)); if (gateip) printf(", gateip: %s", inet_ntoa(gateip)); if (mask) printf(", mask: %s", intoa(netmask)); printf("\n"); #endif /* SUN_BOOTPARAMS */ printf("root addr=%s path=%s\n", inet_ntoa(rootip), rootpath); do_nfs_mount: /* Get the NFS file handle (mount). */ error = nfs_mount(netdev_sock, rootip, rootpath); return (error); }