invoke-userlevel-app.c

#include <linux/init.h>

#include <linux/module.h>

#include <linux/moduleparam.h>

//# include <linux/config.h>


#include <linux/kernel.h> /* printk () */

#include<linux/sched.h>

MODULE_LICENSE ( "GPL" );



static __init int testDriver1_init ( void ) {

     int result = 0;

     char cmdPath [] = "/bin/ls" ;

     char * cmdArgv [] = {cmdPath, "> /xxxx" , NULL};

     char * cmdEnvp [] = { "HOME =/" ,

"PATH =/sbin :/bin:/usr/bin" , NULL};


      result = call_usermodehelper (cmdPath, cmdArgv, cmdEnvp, UMH_WAIT_PROC);

      printk (KERN_DEBUG "testDriver1_init exec ! Theresult of call_usermodehelper is% d\n" , result);


      printk (KERN_DEBUG "testDriver1_init exec ! Theprocess is\"% s\", pid is% d, sys_getpid is% d\n" , current-> comm, current-> pid);

      return result;

}



static __exit void testDriver1_exit ( void ) {

      int result = 0;

      char cmdPath [] = "/bin/rm " ;

      char * cmdArgv [] = {cmdPath, "/touchX.txt" , NULL};

      char * cmdEnvp [] = { "HOME =/" ,

"PATH =/sbin :/bin:/usr/bin" , NULL};


      result = call_usermodehelper (cmdPath, cmdArgv, cmdEnvp, UMH_WAIT_PROC);

      printk (KERN_DEBUG "testDriver1_exit exec ! Theresult of call_usermodehelper is% d\n" , result);

      printk (KERN_DEBUG "testDriver1_exit exec ! Theprocess is\"% s\", pid is% d\n" , current-> comm, current-> pid);

}


module_init (testDriver1_init);

module_exit (testDriver1_exit);