arch/x86_64/kernel/audit.c

   1 #include <linux/init.h>
   2 #include <linux/types.h>
   3 #include <linux/audit.h>
   4 #include <asm/unistd.h>
   5
   6 static unsigned dir_class[] = {
   7 #include <asm-generic/audit_dir_write.h>
   8 ~0U
   9 };
  10
  11 static unsigned read_class[] = {
  12 #include <asm-generic/audit_read.h>
  13 ~0U
  14 };
  15
  16 static unsigned write_class[] = {
  17 #include <asm-generic/audit_write.h>
  18 ~0U
  19 };
  20
  21 static unsigned chattr_class[] = {
  22 #include <asm-generic/audit_change_attr.h>
  23 ~0U
  24 };
  25
  26 int audit_classify_syscall(int abi, unsigned syscall)
  27 {
  28 #ifdef CONFIG_IA32_EMULATION
  29         extern int ia32_classify_syscall(unsigned);
  30         if (abi == AUDIT_ARCH_I386)
  31                 return ia32_classify_syscall(syscall);
  32 #endif
  33         switch(syscall) {
  34         case __NR_open:
  35                 return 2;
  36         case __NR_openat:
  37                 return 3;
  38         case __NR_execve:
  39                 return 5;
  40         default:
  41                 return 0;
  42         }
  43 }
  44
  45 static int __init audit_classes_init(void)
  46 {
  47 #ifdef CONFIG_IA32_EMULATION
  48         extern __u32 ia32_dir_class[];
  49         extern __u32 ia32_write_class[];
  50         extern __u32 ia32_read_class[];
  51         extern __u32 ia32_chattr_class[];
  52         audit_register_class(AUDIT_CLASS_WRITE_32, ia32_write_class);
  53         audit_register_class(AUDIT_CLASS_READ_32, ia32_read_class);
  54         audit_register_class(AUDIT_CLASS_DIR_WRITE_32, ia32_dir_class);
  55         audit_register_class(AUDIT_CLASS_CHATTR_32, ia32_chattr_class);
  56 #endif
  57         audit_register_class(AUDIT_CLASS_WRITE, write_class);
  58         audit_register_class(AUDIT_CLASS_READ, read_class);
  59         audit_register_class(AUDIT_CLASS_DIR_WRITE, dir_class);
  60         audit_register_class(AUDIT_CLASS_CHATTR, chattr_class);
  61         return 0;
  62 }
  63
  64 __initcall(audit_classes_init);