file.h revision 280258
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: stable/10/sys/cddl/compat/opensolaris/sys/file.h 280258 2015-03-19 13:37:36Z rwatson $ 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 37typedef struct file file_t; 38 39#include <sys/capsicum.h> 40 41static __inline file_t * 42getf(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 51static __inline void 52releasef(int fd) 53{ 54 struct file *fp; 55 56 /* No CAP_ rights required, as we're only releasing. */ 57 if (fget(curthread, fd, NULL, &fp) == 0) { 58 fdrop(fp, curthread); 59 fdrop(fp, curthread); 60 } 61} 62#endif /* _KERNEL */ 63 64#endif /* !_OPENSOLARIS_SYS_FILE_H_ */ 65