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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18 * contributors may be used to endorse or promote products derived from
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
23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
24 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
25 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
27 * 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
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/queue.h>
71 #include <sys/mount.h>
72 #include <sys/vnode.h>
77 #include <sys/sysctl.h>
81 static void fuse_bringdown(eventhandler_tag eh_tag);
82 static int fuse_loader(struct module *m, int what, void *arg);
86 extern struct vfsops fuse_vfsops;
87 extern struct cdevsw fuse_cdevsw;
88 extern struct vop_vector fuse_fifonops;
89 extern struct vop_vector fuse_vnops;
90 extern uma_zone_t fuse_pbuf_zone;
92 static struct vfsconf fuse_vfsconf = {
93 .vfc_version = VFS_VERSION,
95 .vfc_vfsops = &fuse_vfsops,
97 .vfc_flags = VFCF_JAIL | VFCF_SYNTHETIC
100 SYSCTL_INT(_vfs_fusefs, OID_AUTO, kernelabi_major, CTLFLAG_RD,
101 SYSCTL_NULL_INT_PTR, FUSE_KERNEL_VERSION, "FUSE kernel abi major version");
102 SYSCTL_INT(_vfs_fusefs, OID_AUTO, kernelabi_minor, CTLFLAG_RD,
103 SYSCTL_NULL_INT_PTR, FUSE_KERNEL_MINOR_VERSION, "FUSE kernel abi minor version");
104 SDT_PROVIDER_DEFINE(fusefs);
106 /******************************
108 * >>> Module management stuff
110 ******************************/
113 fuse_bringdown(eventhandler_tag eh_tag)
117 fuse_device_destroy();
118 mtx_destroy(&fuse_mtx);
122 fuse_loader(struct module *m, int what, void *arg)
124 static eventhandler_tag eh_tag = NULL;
128 case MOD_LOAD: /* kldload */
129 mtx_init(&fuse_mtx, "fuse_mtx", NULL, MTX_DEF);
130 err = fuse_device_init();
132 mtx_destroy(&fuse_mtx);
136 fuse_pbuf_zone = pbuf_zsecond_create("fusepbuf", nswbuf / 2);
138 /* vfs_modevent ignores its first arg */
139 if ((err = vfs_modevent(NULL, what, &fuse_vfsconf)))
140 fuse_bringdown(eh_tag);
143 if ((err = vfs_modevent(NULL, what, &fuse_vfsconf)))
145 fuse_bringdown(eh_tag);
146 uma_zdestroy(fuse_pbuf_zone);
155 /* Registering the module */
157 static moduledata_t fuse_moddata = {
163 DECLARE_MODULE(fusefs, fuse_moddata, SI_SUB_VFS, SI_ORDER_MIDDLE);
164 MODULE_VERSION(fusefs, 1);