sys/sys/procctl.h

   1 /*
   2  * Copyright (c) 2014 The DragonFly Project.  All rights reserved.
   3  *
   4  * This code is derived from software contributed to The DragonFly Project
   5  * by Matthew Dillon <dillon@backplane.com>
   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  *
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in
  15  *    the documentation and/or other materials provided with the
  16  *    distribution.
  17  * 3. Neither the name of The DragonFly Project nor the names of its
  18  *    contributors may be used to endorse or promote products derived
  19  *    from this software without specific, prior written permission.
  20  *
  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
  24  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
  25  * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  26  * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
  27  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  28  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  29  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  30  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  31  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  32  * SUCH DAMAGE.
  33  */
  34
  35 #ifndef _SYS_PROCCTL_H_
  36 #define _SYS_PROCCTL_H_
  37
  38 #if defined(_KERNEL) || defined(_KERNEL_STRUCTURES)
  39 #include <sys/lock.h>
  40 #else
  41 #include <sys/types.h>
  42 #endif
  43
  44 typedef enum idtype {
  45         /*
  46          * These names were mostly lifted from Solaris source code and
  47          * still use Solaris style naming to avoid breaking any
  48          * OpenSolaris code which has been ported to FreeBSD.  There
  49          * is no clear FreeBSD counterpart for all of the names, but
  50          * some have a clear correspondence to FreeBSD entities.
  51          *
  52          * The numerical values are kept synchronized with the Solaris
  53          * values.
  54          */
  55         P_PID,                  /* A process identifier. */
  56         P_PPID,                 /* A parent process identifier. */
  57         P_PGID,                 /* A process group identifier. */
  58         P_SID,                  /* A session identifier. */
  59         P_CID,                  /* A scheduling class identifier. */
  60         P_UID,                  /* A user identifier. */
  61         P_GID,                  /* A group identifier. */
  62         P_ALL,                  /* All processes. */
  63         P_LWPID,                /* An LWP identifier. */
  64         P_TASKID,               /* A task identifier. */
  65         P_PROJID,               /* A project identifier. */
  66         P_POOLID,               /* A pool identifier. */
  67         P_JAILID,               /* A zone identifier. */
  68         P_CTID,                 /* A (process) contract identifier. */
  69         P_CPUID,                /* CPU identifier. */
  70         P_PSETID                /* Processor set identifier. */
  71 } idtype_t;                     /* The type of id_t we are using. */
  72
  73 struct reaper_status {
  74         uint32_t        flags;
  75         uint32_t        refs;
  76         long            reserved1[15];
  77         pid_t           pid_head;
  78         int             reserved2[15];
  79 };
  80
  81 union reaper_info {
  82         struct reaper_status    status;
  83 };
  84
  85 #define _PROCCTL_PRESENT
  86
  87 #define PROC_REAP_ACQUIRE       0x0001
  88 #define PROC_REAP_RELEASE       0x0002
  89 #define PROC_REAP_STATUS        0x0003
  90
  91 #define REAPER_STAT_OWNED       0x00000001
  92 #define REAPER_STAT_REALINIT    0x00000002
  93
  94 #if defined(_KERNEL) || defined(_KERNEL_STRUCTURES)
  95
  96 struct proc;
  97
  98 struct sysreaper {
  99         struct lock     lock;           /* thread or topo access */
 100         struct sysreaper *parent;       /* upward topology only */
 101         struct proc     *p;             /* who the reaper is */
 102         uint32_t        flags;          /* control flags */
 103         u_int           refs;           /* shared structure refs */
 104 };
 105
 106 #endif
 107
 108 #if !defined(_KERNEL)
 109
 110 int procctl(idtype_t idtype, id_t id, int cmd, void *arg);
 111
 112 #endif
 113
 114 #endif