1 /*- 2 * Copyright (c) 2017 Mellanox Technologies, Ltd. 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 unmodified, this list of conditions, and the following 10 * disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 */ 28 29 #ifndef _LINUXKPI_LINUX_PID_H_ 30 #define _LINUXKPI_LINUX_PID_H_ 31 32 #include <sys/param.h> 33 #include <sys/systm.h> 34 #include <sys/proc.h> 35 36 enum pid_type { 37 PIDTYPE_PID, 38 PIDTYPE_PGID, 39 PIDTYPE_SID, 40 PIDTYPE_MAX 41 }; 42 43 #define pid_nr(n) (n) 44 #define pid_vnr(n) (n) 45 #define from_kuid_munged(a, uid) (uid) 46 47 #define pid_task(pid, type) ({ \ 48 struct task_struct *__ts; \ 49 CTASSERT((type) == PIDTYPE_PID); \ 50 __ts = linux_pid_task(pid); \ 51 __ts; \ 52 }) 53 54 #define get_pid_task(pid, type) ({ \ 55 struct task_struct *__ts; \ 56 CTASSERT((type) == PIDTYPE_PID); \ 57 __ts = linux_get_pid_task(pid); \ 58 __ts; \ 59 }) 60 61 #define get_task_pid(task, type) ({ \ 62 CTASSERT((type) == PIDTYPE_PID); \ 63 (task)->task_thread->td_tid; \ 64 }) 65 66 struct task_struct; 67 extern struct task_struct *linux_pid_task(pid_t); 68 extern struct task_struct *linux_get_pid_task(pid_t); 69 70 #endif /* _LINUXKPI_LINUX_PID_H_ */ 71