--- old/usr/src/uts/common/sys/zfd.h
          +++ new/usr/src/uts/common/sys/zfd.h

   1    1  /*
   2    2   * This file and its contents are supplied under the terms of the
   3    3   * Common Development and Distribution License ("CDDL"), version 1.0.
   4    4   * You may only use this file in accordance with the terms of version
   5    5   * 1.0 of the CDDL.
   6    6   *
   7    7   * A full copy of the text of the CDDL should have accompanied this
   8    8   * source.  A copy of the CDDL is also available via the Internet at
   9    9   * http://www.illumos.org/license/CDDL.
  10   10   */
  11   11  /*
  12   12   * Copyright 2015 Joyent, Inc.
  13   13   */
  14   14  
  15   15  #ifndef _SYS_ZFD_H
  16   16  #define _SYS_ZFD_H
  17   17  
  18   18  #include <sys/types.h>
  19   19  
  20   20  #ifdef  __cplusplus
  21   21  extern "C" {
  22   22  #endif
  23   23  
  24   24  /*
  25   25   * Minor node name of the global zone side (often called the "master" side)
  26   26   * of the zfd dev.
  27   27   */
  28   28  #define ZFD_MASTER_NAME "master"
  29   29  
  30   30  /*
  31   31   * Minor node name of the non-global zone side (often called the "slave"
  32   32   * side) of the zfd dev.
  33   33   */
  34   34  #define ZFD_SLAVE_NAME  "slave"
  35   35  
  36   36  #define ZFD_NAME_LEN    16
  37   37  
  38   38  /*
  39   39   * ZFD_IOC forms the base for all zfd ioctls.
  40   40   */
  41   41  #define ZFD_IOC         (('Z' << 24) | ('f' << 16) | ('d' << 8))
  42   42  
  43   43  /*
  44   44   * This ioctl tells the slave side it should push the TTY stream modules
  45   45   * so that the fd looks like a tty.
  46   46   */
  47   47  #define ZFD_MAKETTY             (ZFD_IOC | 0)
  48   48  
  49   49  /*
  50   50   * This ioctl puts a hangup into the stream so that the slave side sees EOF.
  51   51   */
  52   52  #define ZFD_EOF                 (ZFD_IOC | 1)
  53   53  
  54   54  /*
  55   55   * This ioctl succeeds if the slave side is open.
  56   56   */
  57   57  #define ZFD_HAS_SLAVE           (ZFD_IOC | 2)
  58   58  
  59   59  /*
  60   60   * This ioctl links two streams into a multiplexer configuration for in-zone
  61   61   * logging.
  62   62   */
  63   63  #define ZFD_MUX                 (ZFD_IOC | 3)
  64   64  
  65   65  /*
  66   66   * This ioctl controls the flow control setting for the log multiplexer stream
  67   67   * (1 = true, 0 = false). The default is false which implies teeing into the
  68   68   * log stream is "best-effort" but data will be discarded if the stream
  69   69   * becomes full. If set and the log stream begins to fill up, the primary
  70   70   * stream will stop flowing.
  71   71   */
  72   72  #define ZFD_MUX_FLOWCON         (ZFD_IOC | 4)
  73   73  
  74   74  #ifdef  __cplusplus
  75   75  }
  76   76  #endif
  77   77  
  78   78  #endif  /* _SYS_ZFD_H */

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