Annotation of sys/arch/sparc/stand/common/net.c, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: net.c,v 1.2 2003/08/14 17:13:57 deraadt Exp $ */
2: /* $NetBSD: net.c,v 1.2 1997/07/22 17:41:07 drochner Exp $ */
3:
4: /*
5: * Copyright (c) 1995 Gordon W. Ross
6: * All rights reserved.
7: *
8: * Redistribution and use in source and binary forms, with or without
9: * modification, are permitted provided that the following conditions
10: * are met:
11: * 1. Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: * 2. Redistributions in binary form must reproduce the above copyright
14: * notice, this list of conditions and the following disclaimer in the
15: * documentation and/or other materials provided with the distribution.
16: * 3. The name of the author may not be used to endorse or promote products
17: * derived from this software without specific prior written permission.
18: * 4. All advertising materials mentioning features or use of this software
19: * must display the following acknowledgement:
20: * This product includes software developed by Gordon W. Ross
21: *
22: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
23: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
24: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
25: * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
26: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
27: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
31: * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32: */
33:
34: /*
35: * This module implements a "raw device" interface suitable for
36: * use by the stand-alone I/O library NFS code. This interface
37: * does not support any "block" access, and exists only for the
38: * purpose of initializing the network interface, getting boot
39: * parameters, and performing the NFS mount.
40: *
41: * At open time, this does:
42: *
43: * find interface - netif_open()
44: * RARP for IP address - rarp_getipaddress()
45: * RPC/bootparams - callrpc(d, RPC_BOOTPARAMS, ...)
46: * RPC/mountd - nfs_mount(sock, ip, path)
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:
52: #include <sys/param.h>
53: #include <sys/socket.h>
54: #include <net/if.h>
55: #include <netinet/in.h>
56: #include <netinet/in_systm.h>
57:
58: #include <lib/libsa/stand.h>
59: #include <lib/libsa/net.h>
60: #include <lib/libsa/netif.h>
61: #include <lib/libsa/bootparam.h>
62:
63: #include "promdev.h"
64:
65: char rootpath[FNAME_SIZE];
66:
67: int netdev_sock = -1;
68: static int open_count;
69:
70: /*
71: * Called by devopen after it sets f->f_dev to our devsw entry.
72: * This opens the low-level device and sets f->f_devdata.
73: */
74: int
75: net_open(struct promdata *pd)
76: {
77: int error = 0;
78:
79: /* On first open, do netif open, mount, etc. */
80: if (open_count == 0) {
81: /* Find network interface. */
82: if ((netdev_sock = netif_open(pd)) < 0) {
83: error = errno;
84: goto bad;
85: }
86: if ((error = net_mountroot()) != 0)
87: goto bad;
88: }
89: open_count++;
90: bad:
91: return (error);
92: }
93:
94: int
95: net_close(struct promdata *pd)
96: {
97: /* On last close, do netif close, etc. */
98: if (open_count > 0)
99: if (--open_count == 0)
100: netif_close(netdev_sock);
101: }
102:
103: int
104: net_mountroot(void)
105: {
106:
107: #ifdef DEBUG
108: printf("net_mountroot\n");
109: #endif
110:
111: /*
112: * Get info for NFS boot: our IP address, our hostname,
113: * server IP address, and our root path on the server.
114: * There are two ways to do this: The old, Sun way,
115: * and the more modern, BOOTP way. (RFC951, RFC1048)
116: */
117:
118: #ifdef SUN_BOOTPARAMS
119: /* Get boot info using RARP and Sun bootparams. */
120:
121: /* Get our IP address. (rarp.c) */
122: if (rarp_getipaddress(netdev_sock) == -1)
123: return errno;
124:
125: printf("boot: client IP address: %s\n", inet_ntoa(myip));
126:
127: /* Get our hostname, server IP address. */
128: if (bp_whoami(netdev_sock))
129: return (errno);
130:
131: printf("boot: client name: %s\n", hostname);
132:
133: /* Get the root pathname. */
134: if (bp_getfile(netdev_sock, "root", &rootip, rootpath))
135: return (errno);
136:
137: #else
138:
139: /* Get boot info using BOOTP way. (RFC951, RFC1048) */
140: bootp(netdev_sock);
141:
142: printf("Using IP address: %s\n", inet_ntoa(myip));
143:
144: printf("myip: %s (%s)", hostname, inet_ntoa(myip));
145: if (gateip)
146: printf(", gateip: %s", inet_ntoa(gateip));
147: if (netmask)
148: printf(", netmask: %s", intoa(netmask));
149: printf("\n");
150:
151: #endif
152:
153: printf("root addr=%s path=%s\n", inet_ntoa(rootip), rootpath);
154:
155: /* Get the NFS file handle (mount). */
156: if (nfs_mount(netdev_sock, rootip, rootpath) != 0)
157: return (errno);
158: return 0;
159: }
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