Annotation of sys/arch/hp300/stand/uboot/netio.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: netio.c,v 1.3 2006/08/17 06:31:10 miod Exp $ */
! 2: /* $NetBSD: netio.c,v 1.5 1997/01/30 10:32:56 thorpej Exp $ */
! 3:
! 4: /*
! 5: * Copyright (c) 1995, 1996 Jason R. Thorpe
! 6: * Copyright (c) 1995 Gordon W. Ross
! 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. The name of the author may not be used to endorse or promote products
! 18: * derived from this software without specific prior written permission.
! 19: * 4. All advertising materials mentioning features or use of this software
! 20: * must display the following acknowledgement:
! 21: * This product includes software developed by Gordon W. Ross
! 22: *
! 23: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
! 27: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
! 28: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
! 29: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
! 30: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
! 31: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
! 32: * THIS SOFTWARE, EVEN IF 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: * RARP for IP address - rarp_getipaddress()
! 46: * RPC/bootparams - callrpc(d, RPC_BOOTPARAMS, ...)
! 47: * RPC/mountd - nfs_mount(sock, ip, path)
! 48: *
! 49: * the root file handle from mountd is saved in a global
! 50: * for use by the NFS open code (NFS/lookup).
! 51: */
! 52:
! 53: #include <sys/param.h>
! 54: #include <sys/socket.h>
! 55: #include <net/if.h>
! 56: #include <netinet/in.h>
! 57: #include <netinet/if_ether.h>
! 58: #include <netinet/in_systm.h>
! 59:
! 60: #include <lib/libsa/stand.h>
! 61:
! 62: #include "samachdep.h"
! 63:
! 64: #include <lib/libsa/net.h>
! 65: #include <lib/libsa/netif.h>
! 66: #include <lib/libsa/bootparam.h>
! 67: #include <lib/libsa/nfs.h>
! 68:
! 69: extern int nfs_root_node[]; /* XXX - get from nfs_mount() */
! 70:
! 71: struct in_addr myip, rootip, gateip;
! 72: n_long netmask;
! 73: char rootpath[FNAME_SIZE];
! 74:
! 75: int netdev_sock = -1;
! 76: static int open_count;
! 77:
! 78: int netio_ask = 0; /* default to bootparam, can override */
! 79:
! 80: static char input_line[100];
! 81:
! 82: /* Why be any different? */
! 83: #define SUN_BOOTPARAMS
! 84:
! 85: int netclose(struct open_file *);
! 86: int netmountroot(struct open_file *, char *);
! 87: int netopen(struct open_file *, char *);
! 88: int netstrategy(void *, int, daddr_t, size_t, void *, size_t *);
! 89:
! 90: /*
! 91: * Called by devopen after it sets f->f_dev to our devsw entry.
! 92: * This opens the low-level device and sets f->f_devdata.
! 93: */
! 94: int
! 95: netopen(struct open_file *f, char *devname)
! 96: {
! 97: int error = 0;
! 98:
! 99: /* On first open, do netif open, mount, etc. */
! 100: if (open_count == 0) {
! 101: /* Find network interface. */
! 102: if ((netdev_sock = netif_open(devname)) < 0)
! 103: return (error=ENXIO);
! 104: if ((error = netmountroot(f, devname)) != 0)
! 105: return (error);
! 106: }
! 107: open_count++;
! 108: f->f_devdata = nfs_root_node;
! 109: return (error);
! 110: }
! 111:
! 112: int
! 113: netclose(struct open_file *f)
! 114: {
! 115: /* On last close, do netif close, etc. */
! 116: if (open_count > 0)
! 117: if (--open_count == 0)
! 118: netif_close(netdev_sock);
! 119: f->f_devdata = NULL;
! 120: return (0);
! 121: }
! 122:
! 123: int
! 124: netstrategy(void *devdata, int func, daddr_t dblk, size_t size, void *v_buf,
! 125: size_t *rsize)
! 126: {
! 127:
! 128: *rsize = size;
! 129: return EIO;
! 130: }
! 131:
! 132: int
! 133: netmountroot(struct open_file *f, char *devname)
! 134: {
! 135: int error;
! 136: struct iodesc *d;
! 137:
! 138: #ifdef DEBUG
! 139: printf("netmountroot: %s\n", devname);
! 140: #endif
! 141:
! 142: if (netio_ask) {
! 143: get_my_ip:
! 144: printf("My IP address? ");
! 145: bzero(input_line, sizeof(input_line));
! 146: gets(input_line);
! 147: if ((myip.s_addr = inet_addr(input_line)) ==
! 148: htonl(INADDR_NONE)) {
! 149: printf("invalid IP address: %s\n", input_line);
! 150: goto get_my_ip;
! 151: }
! 152:
! 153: get_my_netmask:
! 154: printf("My netmask? ");
! 155: bzero(input_line, sizeof(input_line));
! 156: gets(input_line);
! 157: if ((netmask = inet_addr(input_line)) ==
! 158: htonl(INADDR_NONE)) {
! 159: printf("invalid netmask: %s\n", input_line);
! 160: goto get_my_netmask;
! 161: }
! 162:
! 163: get_my_gateway:
! 164: printf("My gateway? ");
! 165: bzero(input_line, sizeof(input_line));
! 166: gets(input_line);
! 167: if ((gateip.s_addr = inet_addr(input_line)) ==
! 168: htonl(INADDR_NONE)) {
! 169: printf("invalid IP address: %s\n", input_line);
! 170: goto get_my_gateway;
! 171: }
! 172:
! 173: get_server_ip:
! 174: printf("Server IP address? ");
! 175: bzero(input_line, sizeof(input_line));
! 176: gets(input_line);
! 177: if ((rootip.s_addr = inet_addr(input_line)) ==
! 178: htonl(INADDR_NONE)) {
! 179: printf("invalid IP address: %s\n", input_line);
! 180: goto get_server_ip;
! 181: }
! 182:
! 183: get_server_path:
! 184: printf("Server path? ");
! 185: bzero(rootpath, sizeof(rootpath));
! 186: gets(rootpath);
! 187: if (rootpath[0] == '\0' || rootpath[0] == '\n')
! 188: goto get_server_path;
! 189:
! 190: if ((d = socktodesc(netdev_sock)) == NULL)
! 191: return (EMFILE);
! 192:
! 193: d->myip = myip;
! 194:
! 195: goto do_nfs_mount;
! 196: }
! 197:
! 198: /*
! 199: * Get info for NFS boot: our IP address, our hostname,
! 200: * server IP address, and our root path on the server.
! 201: * There are two ways to do this: The old, Sun way,
! 202: * and the more modern, BOOTP way. (RFC951, RFC1048)
! 203: */
! 204:
! 205: #ifdef SUN_BOOTPARAMS
! 206: /* Get boot info using RARP and Sun bootparams. */
! 207:
! 208: /* Get our IP address. (rarp.c) */
! 209: if (rarp_getipaddress(netdev_sock) == -1)
! 210: return (errno);
! 211:
! 212: printf("boot: client IP address: %s\n", inet_ntoa(myip));
! 213:
! 214: /* Get our hostname, server IP address. */
! 215: if (bp_whoami(netdev_sock))
! 216: return (errno);
! 217:
! 218: printf("boot: client name: %s\n", hostname);
! 219:
! 220: /* Get the root pathname. */
! 221: if (bp_getfile(netdev_sock, "root", &rootip, rootpath))
! 222: return (errno);
! 223:
! 224: #else
! 225:
! 226: /* Get boot info using BOOTP way. (RFC951, RFC1048) */
! 227: bootp(netdev_sock);
! 228:
! 229: printf("Using IP address: %s\n", inet_ntoa(myip));
! 230:
! 231: printf("myip: %s (%s)", hostname, inet_ntoa(myip));
! 232: if (gateip)
! 233: printf(", gateip: %s", inet_ntoa(gateip));
! 234: if (mask)
! 235: printf(", mask: %s", intoa(netmask));
! 236: printf("\n");
! 237:
! 238: #endif /* SUN_BOOTPARAMS */
! 239:
! 240: printf("root addr=%s path=%s\n", inet_ntoa(rootip), rootpath);
! 241:
! 242: do_nfs_mount:
! 243: /* Get the NFS file handle (mount). */
! 244: error = nfs_mount(netdev_sock, rootip, rootpath);
! 245:
! 246: return (error);
! 247: }
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