1 /* $NetBSD: session.c,v 1.1 2022/01/22 07:53:06 pho Exp $ */
2
3 /*
4 * Copyright (c) 2021 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. The name of the author may not be used to endorse or promote
16 * products derived from this software without specific prior written
17 * permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
20 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
21 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
23 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
25 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
28 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
29 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 #include <sys/cdefs.h>
33 #if !defined(lint)
34 __RCSID("$NetBSD: session.c,v 1.1 2022/01/22 07:53:06 pho Exp $");
35 #endif /* !lint */
36
37 #include <err.h>
38 #include <fuse_internal.h>
39 #include <puffs.h>
40
41 /* The documentation for FUSE is not clear as to what "struct fuse_session" is,
42 * why it exists, or how it's different from "struct fuse". For now we leave it
43 * undefined (i.e. an incomplete type) and treat "struct fuse_session *" as
44 * being identical to "struct fuse *". */
45
46 struct fuse_session *
fuse_get_session(struct fuse * f)47 fuse_get_session(struct fuse *f) {
48 return (struct fuse_session*)f;
49 }
50
51 int
fuse_session_fd(struct fuse_session * se)52 fuse_session_fd(struct fuse_session *se) {
53 struct fuse* fuse = (struct fuse*)se;
54
55 /* We don't want to expose this to users, but filesystems in the wild often
56 * wants to set FD_CLOEXEC on it. Hope they don't assume it's the real
57 * /dev/fuse, because it's actually /dev/puffs in our implementation. */
58 return puffs_getselectable(fuse->pu);
59 }
60
61 int
fuse_set_signal_handlers(struct fuse_session * se)62 fuse_set_signal_handlers(struct fuse_session *se) {
63 return __fuse_set_signal_handlers((struct fuse*)se);
64 }
65
66 void
fuse_remove_signal_handlers(struct fuse_session * se)67 fuse_remove_signal_handlers(struct fuse_session *se) {
68 if (__fuse_remove_signal_handlers((struct fuse*)se) == -1)
69 warn("%s: failed to remove signal handlers", __func__);
70 }
71