1 /*-
2 * Copyright (c) 2007 Pawel Jakub Dawidek <pjd@FreeBSD.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
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.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS 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 AUTHORS 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
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD$
27 */
28
29 #ifndef _OPENSOLARIS_SYS_FILE_H_
30 #define _OPENSOLARIS_SYS_FILE_H_
31
32 #include_next <sys/file.h>
33
34 #define FKIOCTL 0x80000000 /* ioctl addresses are from kernel */
35
36 #ifdef _KERNEL
37 typedef struct file file_t;
38
39 #include <sys/capsicum.h>
40
41 static __inline file_t *
getf(int fd,cap_rights_t * rightsp)42 getf(int fd, cap_rights_t *rightsp)
43 {
44 struct file *fp;
45
46 if (fget(curthread, fd, rightsp, &fp) == 0)
47 return (fp);
48 return (NULL);
49 }
50
51 static __inline void
releasef(int fd)52 releasef(int fd)
53 {
54 struct file *fp;
55 cap_rights_t rights;
56
57 /* No CAP_ rights required, as we're only releasing. */
58 if (fget(curthread, fd, cap_rights_init(&rights), &fp) == 0) {
59 fdrop(fp, curthread);
60 fdrop(fp, curthread);
61 }
62 }
63 #endif /* _KERNEL */
64
65 #endif /* !_OPENSOLARIS_SYS_FILE_H_ */
66