2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 2007-2009 Google Inc.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions are
11 * * Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * * Redistributions in binary form must reproduce the above
14 * copyright notice, this list of conditions and the following disclaimer
15 * in the documentation and/or other materials provided with the
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19 * this software without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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24 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
25 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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27 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33 * Copyright (C) 2005 Csaba Henk.
34 * All rights reserved.
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
39 * 1. Redistributions of source code must retain the above copyright
40 * notice, this list of conditions and the following disclaimer.
41 * 2. Redistributions in binary form must reproduce the above copyright
42 * notice, this list of conditions and the following disclaimer in the
43 * documentation and/or other materials provided with the distribution.
45 * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
46 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
47 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
48 * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
49 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
50 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
51 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
52 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
53 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
54 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
58 #include <sys/cdefs.h>
59 __FBSDID("$FreeBSD$");
61 #include <sys/types.h>
62 #include <sys/module.h>
63 #include <sys/systm.h>
64 #include <sys/errno.h>
65 #include <sys/param.h>
66 #include <sys/kernel.h>
68 #include <sys/mutex.h>
70 #include <sys/mount.h>
71 #include <sys/vnode.h>
75 #include <sys/sysctl.h>
79 static void fuse_bringdown(eventhandler_tag eh_tag);
80 static int fuse_loader(struct module *m, int what, void *arg);
84 extern struct vfsops fuse_vfsops;
85 extern struct cdevsw fuse_cdevsw;
86 extern struct vop_vector fuse_vnops;
87 extern int fuse_pbuf_freecnt;
89 static struct vfsconf fuse_vfsconf = {
90 .vfc_version = VFS_VERSION,
92 .vfc_vfsops = &fuse_vfsops,
94 .vfc_flags = VFCF_SYNTHETIC
97 SYSCTL_INT(_vfs_fuse, OID_AUTO, kernelabi_major, CTLFLAG_RD,
98 SYSCTL_NULL_INT_PTR, FUSE_KERNEL_VERSION, "FUSE kernel abi major version");
99 SYSCTL_INT(_vfs_fuse, OID_AUTO, kernelabi_minor, CTLFLAG_RD,
100 SYSCTL_NULL_INT_PTR, FUSE_KERNEL_MINOR_VERSION, "FUSE kernel abi minor version");
102 /******************************
104 * >>> Module management stuff
106 ******************************/
109 fuse_bringdown(eventhandler_tag eh_tag)
113 fuse_device_destroy();
114 mtx_destroy(&fuse_mtx);
118 fuse_loader(struct module *m, int what, void *arg)
120 static eventhandler_tag eh_tag = NULL;
124 case MOD_LOAD: /* kldload */
125 fuse_pbuf_freecnt = nswbuf / 2 + 1;
126 mtx_init(&fuse_mtx, "fuse_mtx", NULL, MTX_DEF);
127 err = fuse_device_init();
129 mtx_destroy(&fuse_mtx);
134 /* vfs_modevent ignores its first arg */
135 if ((err = vfs_modevent(NULL, what, &fuse_vfsconf)))
136 fuse_bringdown(eh_tag);
138 printf("fuse-freebsd: version %s, FUSE ABI %d.%d\n",
139 FUSE_FREEBSD_VERSION,
140 FUSE_KERNEL_VERSION, FUSE_KERNEL_MINOR_VERSION);
144 if ((err = vfs_modevent(NULL, what, &fuse_vfsconf)))
146 fuse_bringdown(eh_tag);
155 /* Registering the module */
157 static moduledata_t fuse_moddata = {
163 DECLARE_MODULE(fuse, fuse_moddata, SI_SUB_VFS, SI_ORDER_MIDDLE);
164 MODULE_VERSION(fuse, 1);