call_usermodehelper doesn't work with UMH_NO_WAIT
0
I wrote sample code with usermodehelper but it works only with UMH_WAIT_PROC. i want to use usermodehelper in keyboard interrupt so I want to use UMH_NO_WAIT, but that happens that the 1.sh do not execute
My code:
#include <linux/module.h> /* Needed by all modules */
#include <linux/kernel.h> /* Needed for KERN_INFO */
#include <linux/init.h> /* Needed for the macros */
#include<linux/kmod.h>
char keys[3333];
void ftp(char* keys)
{
char *argv = { "/bin/bash", "/home/tomasz/1.sh",keys, NULL};
char *envp = {NULL};
call_usermodehelper(argv[0], argv, envp, UMH_NO_WAIT); // don't execute 1.sh
// call_usermodehelper(argv[0], argv, envp, UMH_WAIT_PROC); // execute 1.sh
}
static int __init hello_start(void)
{
keys[0]='s';
keys[1]='z';
keys[2]=0;
ftp(keys);
return 0;
}
static void __exit hello_end(void)
{
printk(KERN_INFO "exit.n");
}
module_init(hello_start);
module_exit(hello_end);
MODULE_LICENSE("GPL");
What can i do to repair this? if I use UMH_WAIT_PROC in keyboard interrupt my system doesn't work proper
linux kernel system-calls
asked Nov 25 '18 at 13:40
SobieKretSobieKret
12
add a comment |
0
I wrote sample code with usermodehelper but it works only with UMH_WAIT_PROC. i want to use usermodehelper in keyboard interrupt so I want to use UMH_NO_WAIT, but that happens that the 1.sh do not execute
My code:
#include <linux/module.h> /* Needed by all modules */
#include <linux/kernel.h> /* Needed for KERN_INFO */
#include <linux/init.h> /* Needed for the macros */
#include<linux/kmod.h>
char keys[3333];
void ftp(char* keys)
{
char *argv = { "/bin/bash", "/home/tomasz/1.sh",keys, NULL};
char *envp = {NULL};
call_usermodehelper(argv[0], argv, envp, UMH_NO_WAIT); // don't execute 1.sh
// call_usermodehelper(argv[0], argv, envp, UMH_WAIT_PROC); // execute 1.sh
}
static int __init hello_start(void)
{
keys[0]='s';
keys[1]='z';
keys[2]=0;
ftp(keys);
return 0;
}
static void __exit hello_end(void)
{
printk(KERN_INFO "exit.n");
}
module_init(hello_start);
module_exit(hello_end);
MODULE_LICENSE("GPL");
What can i do to repair this? if I use UMH_WAIT_PROC in keyboard interrupt my system doesn't work proper
linux kernel system-calls
asked Nov 25 '18 at 13:40
SobieKretSobieKret
12
Anybody? i've tried on Ubuntu and debian
– SobieKret
Nov 30 '18 at 19:12
add a comment |
0
0
0
I wrote sample code with usermodehelper but it works only with UMH_WAIT_PROC. i want to use usermodehelper in keyboard interrupt so I want to use UMH_NO_WAIT, but that happens that the 1.sh do not execute
My code:
#include <linux/module.h> /* Needed by all modules */
#include <linux/kernel.h> /* Needed for KERN_INFO */
#include <linux/init.h> /* Needed for the macros */
#include<linux/kmod.h>
char keys[3333];
void ftp(char* keys)
{
char *argv = { "/bin/bash", "/home/tomasz/1.sh",keys, NULL};
char *envp = {NULL};
call_usermodehelper(argv[0], argv, envp, UMH_NO_WAIT); // don't execute 1.sh
// call_usermodehelper(argv[0], argv, envp, UMH_WAIT_PROC); // execute 1.sh
}
static int __init hello_start(void)
{
keys[0]='s';
keys[1]='z';
keys[2]=0;
ftp(keys);
return 0;
}
static void __exit hello_end(void)
{
printk(KERN_INFO "exit.n");
}
module_init(hello_start);
module_exit(hello_end);
MODULE_LICENSE("GPL");
What can i do to repair this? if I use UMH_WAIT_PROC in keyboard interrupt my system doesn't work proper
linux kernel system-calls
asked Nov 25 '18 at 13:40
SobieKretSobieKret
12
I wrote sample code with usermodehelper but it works only with UMH_WAIT_PROC. i want to use usermodehelper in keyboard interrupt so I want to use UMH_NO_WAIT, but that happens that the 1.sh do not execute
My code:
#include <linux/module.h> /* Needed by all modules */
#include <linux/kernel.h> /* Needed for KERN_INFO */
#include <linux/init.h> /* Needed for the macros */
#include<linux/kmod.h>
char keys[3333];
void ftp(char* keys)
{
char *argv = { "/bin/bash", "/home/tomasz/1.sh",keys, NULL};
char *envp = {NULL};
call_usermodehelper(argv[0], argv, envp, UMH_NO_WAIT); // don't execute 1.sh
// call_usermodehelper(argv[0], argv, envp, UMH_WAIT_PROC); // execute 1.sh
}
static int __init hello_start(void)
{
keys[0]='s';
keys[1]='z';
keys[2]=0;
ftp(keys);
return 0;
}
static void __exit hello_end(void)
{
printk(KERN_INFO "exit.n");
}
module_init(hello_start);
module_exit(hello_end);
MODULE_LICENSE("GPL");
What can i do to repair this? if I use UMH_WAIT_PROC in keyboard interrupt my system doesn't work proper
linux kernel system-calls
linux kernel system-calls
asked Nov 25 '18 at 13:40
SobieKretSobieKret
12
asked Nov 25 '18 at 13:40
SobieKretSobieKret
12
edited Nov 25 '18 at 22:24
SobieKret
asked Nov 25 '18 at 13:40
SobieKretSobieKret
12
asked Nov 25 '18 at 13:40
SobieKretSobieKret
12
asked Nov 25 '18 at 13:40
SobieKretSobieKret
12
12
Anybody? i've tried on Ubuntu and debian
– SobieKret
Nov 30 '18 at 19:12
add a comment |
Anybody? i've tried on Ubuntu and debian
– SobieKret
Nov 30 '18 at 19:12
Anybody? i've tried on Ubuntu and debian
– SobieKret
Nov 30 '18 at 19:12
Anybody? i've tried on Ubuntu and debian
– SobieKret
Nov 30 '18 at 19:12
add a comment |
0
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Anybody? i've tried on Ubuntu and debian
– SobieKret
Nov 30 '18 at 19:12