Annotation of sys/arch/sparc64/stand/ofwboot/net.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: net.c,v 1.3 2002/03/14 01:26:46 millert Exp $ */
! 2: /* $NetBSD: net.c,v 1.1 2000/08/20 14:58:38 mrg Exp $ */
! 3:
! 4: /*
! 5: * Copyright (C) 1995 Wolfgang Solfrank.
! 6: * Copyright (C) 1995 TooLs GmbH.
! 7: * All rights reserved.
! 8: *
! 9: * Redistribution and use in source and binary forms, with or without
! 10: * modification, are permitted provided that the following conditions
! 11: * are met:
! 12: * 1. Redistributions of source code must retain the above copyright
! 13: * notice, this list of conditions and the following disclaimer.
! 14: * 2. Redistributions in binary form must reproduce the above copyright
! 15: * notice, this list of conditions and the following disclaimer in the
! 16: * documentation and/or other materials provided with the distribution.
! 17: * 3. All advertising materials mentioning features or use of this software
! 18: * must display the following acknowledgement:
! 19: * This product includes software developed by TooLs GmbH.
! 20: * 4. The name of TooLs GmbH may not be used to endorse or promote products
! 21: * derived from this software without specific prior written permission.
! 22: *
! 23: * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
! 24: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
! 25: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
! 26: * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
! 27: * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
! 28: * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
! 29: * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
! 30: * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
! 31: * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
! 32: * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
! 33: */
! 34:
! 35: /*
! 36: * This module implements a "raw device" interface suitable for
! 37: * use by the stand-alone I/O library NFS code. This interface
! 38: * does not support any "block" access, and exists only for the
! 39: * purpose of initializing the network interface, getting boot
! 40: * parameters, and performing the NFS mount.
! 41: *
! 42: * At open time, this does:
! 43: *
! 44: * find interface - netif_open()
! 45: * BOOTP - bootp()
! 46: * RPC/mountd - nfs_mount()
! 47: *
! 48: * The root file handle from mountd is saved in a global
! 49: * for use by the NFS open code (NFS/lookup).
! 50: *
! 51: * Note: this is based in part on sys/arch/sparc/stand/net.c
! 52: */
! 53:
! 54: #include <sys/param.h>
! 55: #include <sys/socket.h>
! 56:
! 57: #include <net/if.h>
! 58: #include <netinet/in.h>
! 59: #include <netinet/in_systm.h>
! 60:
! 61: #include <lib/libsa/stand.h>
! 62: #include <lib/libsa/net.h>
! 63: #include <lib/libsa/netif.h>
! 64:
! 65:
! 66: static int net_mountroot_bootparams(void);
! 67: static int net_mountroot_bootp(void);
! 68:
! 69: char rootpath[FNAME_SIZE];
! 70:
! 71: static int netdev_sock = -1;
! 72: static int open_count;
! 73:
! 74: /*
! 75: * Called by devopen after it sets f->f_dev to our devsw entry.
! 76: * This opens the low-level device and sets f->f_devdata.
! 77: */
! 78: int
! 79: net_open(op)
! 80: struct of_dev *op;
! 81: {
! 82: int error = 0;
! 83:
! 84: /*
! 85: * On first open, do netif open, mount, etc.
! 86: */
! 87: if (open_count == 0) {
! 88: /* Find network interface. */
! 89: if ((netdev_sock = netif_open(op)) < 0) {
! 90: error = errno;
! 91: goto bad;
! 92: }
! 93: if ((error = net_mountroot()) != 0)
! 94: goto bad;
! 95: }
! 96: open_count++;
! 97: bad:
! 98: if (netdev_sock >= 0 && open_count == 0) {
! 99: netif_close(netdev_sock);
! 100: netdev_sock = -1;
! 101: }
! 102: return error;
! 103: }
! 104:
! 105: int
! 106: net_close(op)
! 107: struct of_dev *op;
! 108: {
! 109: /*
! 110: * On last close, do netif close, etc.
! 111: */
! 112: if (open_count > 0)
! 113: if (--open_count == 0) {
! 114: netif_close(netdev_sock);
! 115: netdev_sock = -1;
! 116: }
! 117: }
! 118:
! 119: int
! 120: net_mountroot_bootparams()
! 121: {
! 122: /* Get our IP address. (rarp.c) */
! 123: if (rarp_getipaddress(netdev_sock) == -1)
! 124: return (errno);
! 125:
! 126: printf("Using BOOTPARAMS protocol: ");
! 127: printf("ip address: %s", inet_ntoa(myip));
! 128:
! 129: /* Get our hostname, server IP address. */
! 130: if (bp_whoami(netdev_sock))
! 131: return (errno);
! 132:
! 133: printf(", hostname: %s\n", hostname);
! 134:
! 135: /* Get the root pathname. */
! 136: if (bp_getfile(netdev_sock, "root", &rootip, rootpath))
! 137: return (errno);
! 138:
! 139: return (0);
! 140: }
! 141:
! 142: int
! 143: net_mountroot_bootp()
! 144: {
! 145: bootp(netdev_sock);
! 146:
! 147: if (myip.s_addr == 0)
! 148: return(ENOENT);
! 149:
! 150: printf("Using BOOTP protocol: ");
! 151: printf("ip address: %s", inet_ntoa(myip));
! 152:
! 153: if (hostname[0])
! 154: printf(", hostname: %s", hostname);
! 155: if (netmask)
! 156: printf(", netmask: %s", intoa(netmask));
! 157: if (gateip.s_addr)
! 158: printf(", gateway: %s", inet_ntoa(gateip));
! 159: printf("\n");
! 160:
! 161: return (0);
! 162: }
! 163:
! 164: int
! 165: net_mountroot()
! 166: {
! 167: int error;
! 168:
! 169: #ifdef DEBUG
! 170: printf("net_mountroot\n");
! 171: #endif
! 172:
! 173: /*
! 174: * Get info for NFS boot: our IP address, our hostname,
! 175: * server IP address, and our root path on the server.
! 176: * There are two ways to do this: The old, Sun way,
! 177: * and the more modern, BOOTP way. (RFC951, RFC1048)
! 178: */
! 179:
! 180: /* Historically, we've used BOOTPARAMS, so try that first */
! 181: error = net_mountroot_bootparams();
! 182: if (error != 0)
! 183: /* Next, try BOOTP */
! 184: error = net_mountroot_bootp();
! 185: if (error != 0)
! 186: return (error);
! 187:
! 188: printf("root addr=%s path=%s\n", inet_ntoa(rootip), rootpath);
! 189:
! 190: /* Get the NFS file handle (mount). */
! 191: if (nfs_mount(netdev_sock, rootip, rootpath) != 0)
! 192: return (errno);
! 193:
! 194: return (0);
! 195: }
CVSweb
![[BACK]](/icons/back.gif){kind=icon}
Return to net.c CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / sys / arch / sparc64 / stand / ofwboot