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/pioctl.h

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    1 /*
    2  * Copryight 1997 Sean Eric Fagan
    3  *
    4  * Redistribution and use in source and binary forms, with or without
    5  * modification, are permitted provided that the following conditions
    6  * are met:
    7  * 1. Redistributions of source code must retain the above copyright
    8  *    notice, this list of conditions and the following disclaimer.
    9  * 2. Redistributions in binary form must reproduce the above copyright
   10  *    notice, this list of conditions and the following disclaimer in the
   11  *    documentation and/or other materials provided with the distribution.
   12  * 3. All advertising materials mentioning features or use of this software
   13  *    must display the following acknowledgement:
   14  *      This product includes software developed by Sean Eric Fagan
   15  * 4. Neither the name of the author may be used to endorse or promote
   16  *    products derived from this software without specific prior written
   17  *    permission.
   18  *
   19  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   29  * SUCH DAMAGE.
   30  *
   31  */
   32 
   33 /*
   34  * procfs ioctl definitions.
   35  *
   36  * $FreeBSD: src/sys/sys/pioctl.h,v 1.12 2002/08/04 01:06:58 mdodd Exp $
   37  */
   38 
   39 #ifndef _SYS_PIOCTL_H
   40 # define _SYS_PIOCTL_H
   41 
   42 # include <sys/ioccom.h>
   43 
   44 struct procfs_status {
   45         int     state;  /* Running, stopped, something else? */
   46         int     flags;  /* Any flags */
   47         unsigned long   events; /* Events to stop on */
   48         int     why;    /* What event, if any, proc stopped on */
   49         unsigned long   val;    /* Any extra data */
   50 };
   51 
   52 # define        PIOCBIS _IOC(IOC_IN, 'p', 1, 0) /* Set event flag */
   53 # define        PIOCBIC _IOC(IOC_IN, 'p', 2, 0) /* Clear event flag */
   54 # define        PIOCSFL _IOC(IOC_IN, 'p', 3, 0) /* Set flags */
   55                         /* wait for proc to stop */
   56 # define        PIOCWAIT        _IOR('p', 4, struct procfs_status)
   57 # define        PIOCCONT        _IOC(IOC_IN, 'p', 5, 0) /* Continue a process */
   58                         /* Get proc status */
   59 # define        PIOCSTATUS      _IOR('p', 6, struct procfs_status)
   60 # define        PIOCGFL _IOR('p', 7, unsigned int)      /* Get flags */
   61 
   62 # define        S_EXEC  0x00000001      /* stop-on-exec */
   63 # define        S_SIG   0x00000002      /* stop-on-signal */
   64 # define        S_SCE   0x00000004      /* stop on syscall entry */
   65 # define        S_SCX   0x00000008      /* stop on syscall exit */
   66 # define        S_CORE  0x00000010      /* stop on coredump */
   67 # define        S_EXIT  0x00000020      /* stop on exit */
   68 # define        S_ALLSTOPS  0x003f      /* stop on all events */
   69 
   70 /*
   71  * If PF_LINGER is set in procp->p_pfsflags, then the last close
   72  * of a /proc/<pid>/mem file will nto clear out the stops and continue
   73  * the process.
   74  */
   75 
   76 # define PF_LINGER      0x01    /* Keep stops around after last close */
   77 # define PF_ISUGID      0x02    /* Ignore UID/GID changes */
   78 # define PF_FORK        0x04    /* Retain settings on fork() */
   79 #endif 

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