LCOV - code coverage report
Current view: top level - lkbce/include/linux - auto_fs.h (source / functions) Hit Total Coverage
Test: coverage.info Lines: 4 4 100.0 %
Date: 2017-01-25 Functions: 0 0 -

          Line data    Source code
       1             : /* -*- linux-c -*- ------------------------------------------------------- *
       2             :  *   
       3             :  * linux/include/linux/auto_fs.h
       4             :  *
       5             :  *   Copyright 1997 Transmeta Corporation - All Rights Reserved
       6             :  *
       7             :  * This file is part of the Linux kernel and is made available under
       8             :  * the terms of the GNU General Public License, version 2, or at your
       9             :  * option, any later version, incorporated herein by reference.
      10             :  *
      11             :  * ----------------------------------------------------------------------- */
      12             : 
      13             : 
      14             : #ifndef _LINUX_AUTO_FS_H
      15             : #define _LINUX_AUTO_FS_H
      16             : 
      17             : #include <linux/types.h>
      18             : #ifdef __KERNEL__
      19             : #include <linux/fs.h>
      20             : #include <linux/limits.h>
      21             : #include <linux/ioctl.h>
      22             : #else
      23             : #include <sys/ioctl.h>
      24             : #endif /* __KERNEL__ */
      25             : 
      26             : /* This file describes autofs v3 */
      27             : #define AUTOFS_PROTO_VERSION    3
      28             : 
      29             : /* Range of protocol versions defined */
      30             : #define AUTOFS_MAX_PROTO_VERSION        AUTOFS_PROTO_VERSION
      31             : #define AUTOFS_MIN_PROTO_VERSION        AUTOFS_PROTO_VERSION
      32             : 
      33             : /*
      34             :  * Architectures where both 32- and 64-bit binaries can be executed
      35             :  * on 64-bit kernels need this.  This keeps the structure format
      36             :  * uniform, and makes sure the wait_queue_token isn't too big to be
      37             :  * passed back down to the kernel.
      38             :  *
      39             :  * This assumes that on these architectures:
      40             :  * mode     32 bit    64 bit
      41             :  * -------------------------
      42             :  * int      32 bit    32 bit
      43             :  * long     32 bit    64 bit
      44             :  *
      45             :  * If so, 32-bit user-space code should be backwards compatible.
      46             :  */
      47             : 
      48             : #if defined(__sparc__) || defined(__mips__) || defined(__x86_64__) \
      49             :  || defined(__powerpc__) || defined(__s390__)
      50           1 : typedef unsigned int autofs_wqt_t;
      51           1 : #else
      52             : typedef unsigned long autofs_wqt_t;
      53             : #endif
      54             : 
      55             : /* Packet types */
      56             : #define autofs_ptype_missing    0       /* Missing entry (mount request) */
      57             : #define autofs_ptype_expire     1       /* Expire entry (umount request) */
      58             : 
      59             : struct autofs_packet_hdr {
      60             :         int proto_version;              /* Protocol version */
      61             :         int type;                       /* Type of packet */
      62             : };
      63           1 : 
      64             : struct autofs_packet_missing {
      65             :         struct autofs_packet_hdr hdr;
      66             :         autofs_wqt_t wait_queue_token;
      67             :         int len;
      68             :         char name[NAME_MAX+1];
      69             : };      
      70           1 : 
      71             : /* v3 expire (via ioctl) */
      72             : struct autofs_packet_expire {
      73             :         struct autofs_packet_hdr hdr;
      74             :         int len;
      75             :         char name[NAME_MAX+1];
      76             : };
      77             : 
      78             : #define AUTOFS_IOC_READY      _IO(0x93,0x60)
      79             : #define AUTOFS_IOC_FAIL       _IO(0x93,0x61)
      80             : #define AUTOFS_IOC_CATATONIC  _IO(0x93,0x62)
      81             : #define AUTOFS_IOC_PROTOVER   _IOR(0x93,0x63,int)
      82             : #define AUTOFS_IOC_SETTIMEOUT _IOWR(0x93,0x64,unsigned long)
      83             : #define AUTOFS_IOC_EXPIRE     _IOR(0x93,0x65,struct autofs_packet_expire)
      84             : 
      85             : #endif /* _LINUX_AUTO_FS_H */

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