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Data Structures | Macros | Functions
yama_lsm.c File Reference
#include <linux/security.h>
#include <linux/sysctl.h>
#include <linux/ptrace.h>
#include <linux/prctl.h>
#include <linux/ratelimit.h>

Go to the source code of this file.

Data Structures

struct  ptrace_relation
 

Macros

#define YAMA_SCOPE_DISABLED   0
 
#define YAMA_SCOPE_RELATIONAL   1
 
#define YAMA_SCOPE_CAPABILITY   2
 
#define YAMA_SCOPE_NO_ATTACH   3
 

Functions

void yama_task_free (struct task_struct *task)
 
int yama_task_prctl (int option, unsigned long arg2, unsigned long arg3, unsigned long arg4, unsigned long arg5)
 
int yama_ptrace_access_check (struct task_struct *child, unsigned int mode)
 
int yama_ptrace_traceme (struct task_struct *parent)
 
 security_initcall (yama_init)
 

Macro Definition Documentation

#define YAMA_SCOPE_CAPABILITY   2

Definition at line 23 of file yama_lsm.c.

#define YAMA_SCOPE_DISABLED   0

Definition at line 21 of file yama_lsm.c.

#define YAMA_SCOPE_NO_ATTACH   3

Definition at line 24 of file yama_lsm.c.

#define YAMA_SCOPE_RELATIONAL   1

Definition at line 22 of file yama_lsm.c.

Function Documentation

security_initcall ( yama_init  )
int yama_ptrace_access_check ( struct task_struct child,
unsigned int  mode 
)

yama_ptrace_access_check - validate PTRACE_ATTACH calls : task that current task is attempting to ptrace : ptrace attach mode

Returns 0 if following the ptrace is allowed, -ve on error.

Definition at line 246 of file yama_lsm.c.

int yama_ptrace_traceme ( struct task_struct parent)

yama_ptrace_traceme - validate PTRACE_TRACEME calls : task that will become the ptracer of the current task

Returns 0 if following the ptrace is allowed, -ve on error.

Definition at line 296 of file yama_lsm.c.

void yama_task_free ( struct task_struct task)

yama_task_free - check for task_pid to remove from exception list : task being removed

Definition at line 103 of file yama_lsm.c.

int yama_task_prctl ( int  option,
unsigned long  arg2,
unsigned long  arg3,
unsigned long  arg4,
unsigned long  arg5 
)

yama_task_prctl - check for Yama-specific prctl operations : operation : argument : argument : argument : argument

Return 0 on success, -ve on error. -ENOSYS is returned when Yama does not handle the given option.

Definition at line 119 of file yama_lsm.c.