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

     /*-
      * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
      *
      * Copyright (c) 2013 Hudson River Trading LLC
      * Copyright (c) 2014, 2016 The FreeBSD Foundation
      * Written by: John H. Baldwin <jhb@FreeBSD.org>
      * All rights reserved.
      *
      * Portions of this software were developed by Konstantin Belousov
     * under sponsorship from the FreeBSD Foundation.
     *
     * Redistribution and use in source and binary forms, with or without
     * modification, are permitted provided that the following conditions
     * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     *
     * $FreeBSD$
     */
    
    #ifndef _SYS_PROCCTL_H_
    #define _SYS_PROCCTL_H_
    
    #ifndef _KERNEL
    #include <sys/types.h>
    #include <sys/wait.h>
    #endif
    
    /* MD PROCCTL verbs start at 0x10000000 */
    #define PROC_PROCCTL_MD_MIN     0x10000000
    #include <machine/procctl.h>
    
    #define PROC_SPROTECT           1       /* set protected state */
    #define PROC_REAP_ACQUIRE       2       /* reaping enable */
    #define PROC_REAP_RELEASE       3       /* reaping disable */
    #define PROC_REAP_STATUS        4       /* reaping status */
    #define PROC_REAP_GETPIDS       5       /* get descendants */
    #define PROC_REAP_KILL          6       /* kill descendants */
    #define PROC_TRACE_CTL          7       /* en/dis ptrace and coredumps */
    #define PROC_TRACE_STATUS       8       /* query tracing status */
    #define PROC_TRAPCAP_CTL        9       /* trap capability errors */
    #define PROC_TRAPCAP_STATUS     10      /* query trap capability status */
    #define PROC_PDEATHSIG_CTL      11      /* set parent death signal */
    #define PROC_PDEATHSIG_STATUS   12      /* get parent death signal */
    #define PROC_ASLR_CTL           13      /* en/dis ASLR */
    #define PROC_ASLR_STATUS        14      /* query ASLR status */
    #define PROC_STACKGAP_CTL       17      /* en/dis stack gap on MAP_STACK */
    #define PROC_STACKGAP_STATUS    18      /* query stack gap */
    
    /* Operations for PROC_SPROTECT (passed in integer arg). */
    #define PPROT_OP(x)     ((x) & 0xf)
    #define PPROT_SET       1
    #define PPROT_CLEAR     2
    
    /* Flags for PROC_SPROTECT (ORed in with operation). */
    #define PPROT_FLAGS(x)  ((x) & ~0xf)
    #define PPROT_DESCEND   0x10
    #define PPROT_INHERIT   0x20
    
    /* Result of PREAP_STATUS (returned by value). */
    struct procctl_reaper_status {
            u_int   rs_flags;
            u_int   rs_children;
            u_int   rs_descendants;
            pid_t   rs_reaper;
            pid_t   rs_pid;
            u_int   rs_pad0[15];
    };
    
    /* struct procctl_reaper_status rs_flags */
    #define REAPER_STATUS_OWNED     0x00000001
    #define REAPER_STATUS_REALINIT  0x00000002
    
    struct procctl_reaper_pidinfo {
            pid_t   pi_pid;
            pid_t   pi_subtree;
            u_int   pi_flags;
            u_int   pi_pad0[15];
    };
    
    #define REAPER_PIDINFO_VALID    0x00000001
    #define REAPER_PIDINFO_CHILD    0x00000002
    #define REAPER_PIDINFO_REAPER   0x00000004
    
   struct procctl_reaper_pids {
           u_int   rp_count;
           u_int   rp_pad0[15];
           struct procctl_reaper_pidinfo *rp_pids;
   };
   
   struct procctl_reaper_kill {
           int     rk_sig;         /* in  - signal to send */
           u_int   rk_flags;       /* in  - REAPER_KILL flags */
           pid_t   rk_subtree;     /* in  - subtree, if REAPER_KILL_SUBTREE */
           u_int   rk_killed;      /* out - count of processes successfully
                                      killed */
           pid_t   rk_fpid;        /* out - first failed pid for which error
                                      is returned */
           u_int   rk_pad0[15];
   };
   
   #define REAPER_KILL_CHILDREN    0x00000001
   #define REAPER_KILL_SUBTREE     0x00000002
   
   #define PROC_TRACE_CTL_ENABLE           1
   #define PROC_TRACE_CTL_DISABLE          2
   #define PROC_TRACE_CTL_DISABLE_EXEC     3
   
   #define PROC_TRAPCAP_CTL_ENABLE         1
   #define PROC_TRAPCAP_CTL_DISABLE        2
   
   #define PROC_ASLR_FORCE_ENABLE          1
   #define PROC_ASLR_FORCE_DISABLE         2
   #define PROC_ASLR_NOFORCE               3
   #define PROC_ASLR_ACTIVE                0x80000000
   
   #define PROC_STACKGAP_ENABLE            0x0001
   #define PROC_STACKGAP_DISABLE           0x0002
   #define PROC_STACKGAP_ENABLE_EXEC       0x0004
   #define PROC_STACKGAP_DISABLE_EXEC      0x0008
   
   #ifndef _KERNEL
   __BEGIN_DECLS
   int     procctl(idtype_t, id_t, int, void *);
   __END_DECLS
   
   #endif
   
   #endif /* !_SYS_PROCCTL_H_ */

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