1 /* $NetBSD: devopen.c,v 1.5 2011/12/25 06:09:09 tsutsui Exp $ */
2
3 /*-
4 * Copyright (c) 2004 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by UCHIYAMA Yasushi.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 #include <lib/libsa/stand.h>
33 #include <lib/libkern/libkern.h>
34
35 #include <netinet/in.h>
36 #include <lib/libsa/dev_net.h>
37 #include <lib/libsa/ufs.h>
38 #include <lib/libsa/nfs.h>
39 #include <lib/libsa/dev_net.h>
40 #include <machine/sbd.h>
41
42 #include "local.h"
43
44 extern uint8_t kernel_binary[];
45 extern int kernel_binary_size;
46
47 extern struct fs_ops datafs_ops;
48 extern struct fs_ops bfs_ops;
49 struct fs_ops ufs_ops = FS_OPS(ufs);
50 struct fs_ops nfs_ops = FS_OPS(nfs);
51
52 extern struct devsw netdevsw;
53 extern struct devsw dkdevsw;
54 char fname[16];
55
56 /* Referenced by libsa/open.c */
57 struct fs_ops file_system[1];
58 int nfsys = 1;
59 struct devsw devsw[1];
60 int ndevs = 1;
61
62 int
devopen(struct open_file * f,const char * request,char ** file)63 devopen(struct open_file *f, const char *request, char **file)
64 {
65 char *p, *filename;
66 int disk, partition;
67 void *addr;
68 size_t size;
69
70 strcpy(fname, request);
71
72 filename = 0;
73 for (p = fname; *p; p++) {
74 if (*p == ':') {
75 filename = p + 1;
76 *p = '\0';
77 break;
78 }
79 }
80
81 if (filename == 0) { /* not a loader's request. probably ufs_ls() */
82 printf("request=%s\n", request);
83 f->f_dev = &dkdevsw;
84 file_system[0] = ufs_ops;
85 devsw[0] = dkdevsw;
86 *file = "/";
87 return 0;
88 }
89
90 /* Data section */
91 if (strcmp(fname, "mem") == 0) {
92 data_attach(kernel_binary, kernel_binary_size);
93 *file = "noname";
94 f->f_flags |= F_NODEV;
95 file_system[0] = datafs_ops;
96 printf("data(compiled):noname\n");
97 return 0;
98 }
99
100 /* NFS boot */
101 if (strcmp(fname, "nfs") == 0) {
102 if (!DEVICE_CAPABILITY.network_enabled) {
103 printf("Network disabled.\n");
104 return -1;
105 }
106 try_bootp = true;
107 file_system[0] = nfs_ops;
108 f->f_dev = &netdevsw;
109 if (*filename == '\0') {
110 printf("set kernel filename. ex.) nfs:netbsd\n");
111 return 1;
112 }
113 *--filename = '/';
114 *file = filename;
115 printf("nfs:/%s\n", filename);
116 net_open(f);
117 return 0;
118 }
119
120 /* FD boot */
121 if (strcmp(fname, "fd") == 0) {
122 printf("floppy(boot):/%s (ustarfs)\n", filename);
123 f->f_dev = &dkdevsw;
124 file_system[0] = datafs_ops;
125 devsw[0] = dkdevsw;
126 device_attach(NVSRAM_BOOTDEV_FLOPPYDISK, -1, -1);
127 if (!ustarfs_load(filename, &addr, &size))
128 return -1;
129 data_attach(addr, size);
130 *file = filename;
131 return 0;
132 }
133
134 /* Disk boot */
135 if (strncmp(fname, "sd", 2) == 0) {
136 enum fstype fs;
137 if (!DEVICE_CAPABILITY.disk_enabled) {
138 printf("Disk disabled.\n");
139 return -1;
140 }
141
142 disk = fname[2] - '0';
143 partition = fname[3] - 'a';
144 if (disk < 0 || disk > 9 || partition < 0 || partition > 15) {
145 fs = FSTYPE_USTARFS;
146 printf("disk(boot):%s ", filename);
147 device_attach(NVSRAM_BOOTDEV_HARDDISK, -1, -1);
148 } else {
149 fs = fstype(partition);
150 printf("disk(%d,%d):/%s ",
151 disk, partition, filename);
152 device_attach(NVSRAM_BOOTDEV_HARDDISK, disk, partition);
153 }
154
155 switch (fs) {
156 case FSTYPE_UFS:
157 printf(" (ufs)\n");
158 f->f_dev = &dkdevsw;
159 file_system[0] = ufs_ops;
160 devsw[0] = dkdevsw;
161 break;
162 case FSTYPE_BFS:
163 printf(" (bfs)\n");
164 f->f_flags |= F_NODEV;
165 file_system[0] = bfs_ops;
166 break;
167 case FSTYPE_USTARFS:
168 printf(" (ustarfs)\n");
169 f->f_dev = &dkdevsw;
170 file_system[0] = datafs_ops;
171 devsw[0] = dkdevsw;
172 if (!ustarfs_load(filename, &addr, &size))
173 return -1;
174 data_attach(addr, size);
175 break;
176 }
177 *file = filename;
178 return 0;
179 }
180
181 printf("%s invalid.\n", fname);
182
183 return -1;
184 }
185