2 * Copyright (c) 2001 Doug Rabson
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
30 #include <sys/param.h>
36 #include <bootstrap.h>
50 skifs_open(const char *path, struct open_file *f)
55 * Skip leading '/' so that our pretend filesystem starts in
56 * the current working directory.
61 fd = ssc((u_int64_t) path, 1, 0, 0, SSC_OPEN);
63 f->f_fsdata = (void*)(u_int64_t) fd;
70 skifs_close(struct open_file *f)
72 ssc((u_int64_t) f->f_fsdata, 0, 0, 0, SSC_CLOSE);
77 skifs_read(struct open_file *f, void *buf, size_t size, size_t *resid)
80 struct disk_stat stat;
83 req.addr = (u_int64_t) buf;
84 ssc((u_int64_t) f->f_fsdata, 1, (u_int64_t) &req, f->f_offset, SSC_READ);
85 stat.fd = (u_int64_t) f->f_fsdata;
86 ssc((u_int64_t)&stat, 0, 0, 0, SSC_WAIT_COMPLETION);
88 *resid = size - stat.count;
89 f->f_offset += stat.count;
94 skifs_seek(struct open_file *f, off_t offset, int where)
108 printf("can't find end of file in SKI\n");
113 f->f_offset = base + offset;
118 skifs_stat(struct open_file *f, struct stat *sb)
120 bzero(sb, sizeof(*sb));
121 sb->st_mode = S_IFREG | S_IRUSR;
126 skifs_readdir(struct open_file *f, struct dirent *d)
131 struct fs_ops ski_fsops = {
149 * Print information about disks
152 skifs_dev_print(int verbose)
157 * Attempt to open the disk described by (dev) for use by (f).
159 * Note that the philosophy here is "give them exactly what
160 * they ask for". This is necessary because being too "smart"
161 * about what the user might want leads to complications.
162 * (eg. given no slice or partition value, with a disk that is
163 * sliced - are they after the first BSD slice, or the DOS
167 skifs_dev_open(struct open_file *f, ...)
173 skifs_dev_close(struct open_file *f)
180 skifs_dev_strategy(void *devdata, int rw, daddr_t dblk, size_t size, char *buf, size_t *rsize)
185 struct devsw skifs_dev = {