The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/sys/procctl.h

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    1 /*-
    2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
    3  *
    4  * Copyright (c) 2013 Hudson River Trading LLC
    5  * Copyright (c) 2014, 2016 The FreeBSD Foundation
    6  * Written by: John H. Baldwin <jhb@FreeBSD.org>
    7  * All rights reserved.
    8  *
    9  * Portions of this software were developed by Konstantin Belousov
   10  * under sponsorship from the FreeBSD Foundation.
   11  *
   12  * Redistribution and use in source and binary forms, with or without
   13  * modification, are permitted provided that the following conditions
   14  * are met:
   15  * 1. Redistributions of source code must retain the above copyright
   16  *    notice, this list of conditions and the following disclaimer.
   17  * 2. Redistributions in binary form must reproduce the above copyright
   18  *    notice, this list of conditions and the following disclaimer in the
   19  *    documentation and/or other materials provided with the distribution.
   20  *
   21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   31  * SUCH DAMAGE.
   32  *
   33  * $FreeBSD: stable/12/sys/sys/procctl.h 345446 2019-03-23 11:47:13Z kib $
   34  */
   35 
   36 #ifndef _SYS_PROCCTL_H_
   37 #define _SYS_PROCCTL_H_
   38 
   39 #ifndef _KERNEL
   40 #include <sys/types.h>
   41 #include <sys/wait.h>
   42 #endif
   43 
   44 /* MD PROCCTL verbs start at 0x10000000 */
   45 #define PROC_PROCCTL_MD_MIN     0x10000000
   46 #include <machine/procctl.h>
   47 
   48 #define PROC_SPROTECT           1       /* set protected state */
   49 #define PROC_REAP_ACQUIRE       2       /* reaping enable */
   50 #define PROC_REAP_RELEASE       3       /* reaping disable */
   51 #define PROC_REAP_STATUS        4       /* reaping status */
   52 #define PROC_REAP_GETPIDS       5       /* get descendants */
   53 #define PROC_REAP_KILL          6       /* kill descendants */
   54 #define PROC_TRACE_CTL          7       /* en/dis ptrace and coredumps */
   55 #define PROC_TRACE_STATUS       8       /* query tracing status */
   56 #define PROC_TRAPCAP_CTL        9       /* trap capability errors */
   57 #define PROC_TRAPCAP_STATUS     10      /* query trap capability status */
   58 #define PROC_PDEATHSIG_CTL      11      /* set parent death signal */
   59 #define PROC_PDEATHSIG_STATUS   12      /* get parent death signal */
   60 #define PROC_ASLR_CTL           13      /* en/dis ASLR */
   61 #define PROC_ASLR_STATUS        14      /* query ASLR status */
   62 
   63 /* Operations for PROC_SPROTECT (passed in integer arg). */
   64 #define PPROT_OP(x)     ((x) & 0xf)
   65 #define PPROT_SET       1
   66 #define PPROT_CLEAR     2
   67 
   68 /* Flags for PROC_SPROTECT (ORed in with operation). */
   69 #define PPROT_FLAGS(x)  ((x) & ~0xf)
   70 #define PPROT_DESCEND   0x10
   71 #define PPROT_INHERIT   0x20
   72 
   73 /* Result of PREAP_STATUS (returned by value). */
   74 struct procctl_reaper_status {
   75         u_int   rs_flags;
   76         u_int   rs_children;
   77         u_int   rs_descendants;
   78         pid_t   rs_reaper;
   79         pid_t   rs_pid;
   80         u_int   rs_pad0[15];
   81 };
   82 
   83 /* struct procctl_reaper_status rs_flags */
   84 #define REAPER_STATUS_OWNED     0x00000001
   85 #define REAPER_STATUS_REALINIT  0x00000002
   86 
   87 struct procctl_reaper_pidinfo {
   88         pid_t   pi_pid;
   89         pid_t   pi_subtree;
   90         u_int   pi_flags;
   91         u_int   pi_pad0[15];
   92 };
   93 
   94 #define REAPER_PIDINFO_VALID    0x00000001
   95 #define REAPER_PIDINFO_CHILD    0x00000002
   96 #define REAPER_PIDINFO_REAPER   0x00000004
   97 
   98 struct procctl_reaper_pids {
   99         u_int   rp_count;
  100         u_int   rp_pad0[15];
  101         struct procctl_reaper_pidinfo *rp_pids;
  102 };
  103 
  104 struct procctl_reaper_kill {
  105         int     rk_sig;         /* in  - signal to send */
  106         u_int   rk_flags;       /* in  - REAPER_KILL flags */
  107         pid_t   rk_subtree;     /* in  - subtree, if REAPER_KILL_SUBTREE */
  108         u_int   rk_killed;      /* out - count of processes successfully
  109                                    killed */
  110         pid_t   rk_fpid;        /* out - first failed pid for which error
  111                                    is returned */
  112         u_int   rk_pad0[15];
  113 };
  114 
  115 #define REAPER_KILL_CHILDREN    0x00000001
  116 #define REAPER_KILL_SUBTREE     0x00000002
  117 
  118 #define PROC_TRACE_CTL_ENABLE           1
  119 #define PROC_TRACE_CTL_DISABLE          2
  120 #define PROC_TRACE_CTL_DISABLE_EXEC     3
  121 
  122 #define PROC_TRAPCAP_CTL_ENABLE         1
  123 #define PROC_TRAPCAP_CTL_DISABLE        2
  124 
  125 #define PROC_ASLR_FORCE_ENABLE          1
  126 #define PROC_ASLR_FORCE_DISABLE         2
  127 #define PROC_ASLR_NOFORCE               3
  128 #define PROC_ASLR_ACTIVE                0x80000000
  129 
  130 #ifndef _KERNEL
  131 __BEGIN_DECLS
  132 int     procctl(idtype_t, id_t, int, void *);
  133 __END_DECLS
  134 
  135 #endif
  136 
  137 #endif /* !_SYS_PROCCTL_H_ */

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