1 /* $NetBSD: devopen.c,v 1.7 2017/08/01 11:58:45 christos Exp $ */
2
3 /*-
4 * Copyright (c) 1999 Shin Takemura.
5 * All rights reserved.
6 *
7 * This software is part of the PocketBSD.
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 the PocketBSD project
20 * and its contributors.
21 * 4. Neither the name of the project nor the names of its contributors
22 * may be used to endorse or promote products derived from this software
23 * without specific prior written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 * SUCH DAMAGE.
36 *
37 */
38 #define STANDALONE_WINDOWS_SIDE
39 #include <stand.h>
40 #include <winblk.h>
41 #include <winfs.h>
42 #include <lib/libsa/ufs.h>
43
44 extern int parsebootfile(const char *, char**, char**, unsigned int*,
45 unsigned int*, const char**);
46
47 struct devsw devsw[] = {
48 {"winblk", winblkstrategy, winblkopen, winblkclose, winblkioctl },
49 };
50 int ndevs = sizeof(devsw) / sizeof(struct devsw);
51
52 static struct fs_ops winop = {
53 win_open, win_close, win_read, win_write, win_seek, win_stat
54 };
55
56 static struct fs_ops ufsop = {
57 ufs_open, ufs_close, ufs_read, ufs_write, ufs_seek, ufs_stat
58 };
59
60 struct fs_ops file_system[] = {
61 { 0 },
62 };
63 int nfsys = 1;
64
65 int
parsebootfile(const char * fnamexx,char ** fsmode,char ** devname,unsigned int * unit,unsigned int * partition,const char ** file)66 parsebootfile(const char *fnamexx, char **fsmode, char **devname, unsigned int *unit, unsigned int *partition, const char **file)
67 /* fsmode: out */
68 /* devname: out */
69 /* unit, *partition: out */
70 /* file: out */
71 {
72 TCHAR *fname = (TCHAR*)fnamexx;
73
74 if (fname[0] == TEXT('\\')) {
75 *fsmode = "win";
76 *devname = "";
77 *unit = 0;
78 *partition = 0;
79 *file = fname;
80 } else {
81 static char name[1024]; /* XXX */
82
83 if (wcstombs(name, (TCHAR*)fname, sizeof(name)) == (size_t)-1) {
84 return (ENOENT);
85 }
86 if ('1' <= name[0] && name[0] <= '9' && name[1] == ':') {
87 *unit = name[0] - '0';
88 *file = &name[2];
89 } else {
90 *unit = 1;
91 *file = name;
92 }
93 *fsmode = "ufs";
94 *devname = "DSK";
95 *partition = 0;
96 }
97
98 return (0);
99 }
100
101
102 int
devopen(struct open_file * f,const char * fname,char ** file)103 devopen(struct open_file *f, const char *fname, char **file)
104 {
105 char *devname;
106 char *fsmode;
107 unsigned int unit, partition;
108 int error;
109
110 if ((error = parsebootfile(fname, &fsmode, &devname, &unit,
111 &partition, (const char **) file)))
112 return (error);
113
114 if (!strcmp(fsmode, "win")) {
115 file_system[0] = winop;
116 f->f_flags |= F_NODEV; /* handled by Windows */
117 return (0);
118 } else
119 if (!strcmp(fsmode, "ufs")) {
120 file_system[0] = ufsop;
121 f->f_dev = &devsw[0]; /* Windows block device. */
122 return (*f->f_dev->dv_open)(f, devname, unit, partition);
123 } else {
124 printf("no file system\n");
125 return (ENXIO);
126 }
127 /* NOTREACHED */
128 }
129