lab/modules/labmount.c

   1 /*
   2  * labmount.c
   3  * A mount module for LAB
   4  *
   5  * Copyright (c) 2003 Joshua Wise
   6  */
   7
   8 #include <linux/kernel.h>
   9 #include <linux/module.h>
  10 #include <linux/init.h>
  11 #include <linux/syscalls.h>
  12 #include <linux/lab/lab.h>
  13 #include <linux/lab/commands.h>
  14
  15 void lab_cmd_mount(int argc,const char** argv);
  16 void lab_cmd_umount(int argc,const char** argv);
  17
  18 int labmount_init(void)
  19 {
  20         lab_addcommand("mount", lab_cmd_mount, "Allows you to mount a filesystem");
  21         lab_addcommand("umount", lab_cmd_umount, "Allows you to unmount a filesystem");
  22         return 0;
  23 }
  24
  25 void labmount_cleanup(void)
  26 {
  27         lab_delcommand("mount");
  28         lab_delcommand("umount");
  29 }
  30
  31
  32 void lab_cmd_mount(int argc,const char** argv)
  33 {
  34         const char* devname;
  35         const char* path;
  36         const char* fstype;
  37         int retval;
  38
  39         if (argc < 3 || argc > 4) {
  40                 lab_puts("mount: syntax: mount devname path [fstype]\r\n"
  41                          "mount: where: devname is a device name including the /dev\r\n"
  42                          "mount:        path is a path to mount at including the leading /\r\n"
  43                          "mount:        and fstype is an optional filesystem type (default is jffs2)\r\n");
  44                 return;
  45         }
  46
  47         devname = argv[1];
  48         path = argv[2];
  49         if (argc == 4)
  50                 fstype = argv[3];
  51         else
  52                 fstype = "jffs2";
  53
  54         if ((retval = sys_mount((char*)devname, (char*)path, (char*)fstype, 0, "")) < 0) {
  55                 lab_printf("lab: mount -t %s %s %s failed with errno %d\r\n",
  56                         fstype, devname, path, retval);
  57                 globfail++;
  58         }
  59 }
  60
  61 void lab_cmd_umount(int argc,const char** argv)
  62 {
  63         int retval;
  64
  65         if (argc != 2) {
  66                 lab_puts("umount: syntax: umount path\r\n");
  67                 return;
  68         }
  69
  70         if ((retval = sys_oldumount((char*)argv[1])) < 0) {
  71                 lab_printf("lab: umount %s failed with errno %d\n", argv[1], retval);
  72                 globfail++;
  73         }
  74 }
  75
  76 MODULE_AUTHOR("Joshua Wise");
  77 MODULE_DESCRIPTION("LAB mount Module");
  78 MODULE_LICENSE("GPL");
  79 module_init(labmount_init);
  80 module_exit(labmount_cleanup);