kernel/lib/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 static unsigned signal_class[] = {
  27 #include <asm-generic/audit_signal.h>
  28 ~0U
  29 };
  30
  31 int audit_classify_arch(int arch)
  32 {
  33         if (audit_is_compat(arch))
  34                 return 1;
  35         else
  36                 return 0;
  37 }
  38
  39 int audit_classify_syscall(int abi, unsigned syscall)
  40 {
  41         if (audit_is_compat(abi))
  42                 return audit_classify_compat_syscall(abi, syscall);
  43
  44         switch(syscall) {
  45 #ifdef __NR_open
  46         case __NR_open:
  47                 return 2;
  48 #endif
  49 #ifdef __NR_openat
  50         case __NR_openat:
  51                 return 3;
  52 #endif
  53 #ifdef __NR_socketcall
  54         case __NR_socketcall:
  55                 return 4;
  56 #endif
  57 #ifdef __NR_execveat
  58         case __NR_execveat:
  59 #endif
  60         case __NR_execve:
  61                 return 5;
  62         default:
  63                 return 0;
  64         }
  65 }
  66
  67 static int __init audit_classes_init(void)
  68 {
  69 #ifdef CONFIG_AUDIT_COMPAT_GENERIC
  70         audit_register_class(AUDIT_CLASS_WRITE_32, compat_write_class);
  71         audit_register_class(AUDIT_CLASS_READ_32, compat_read_class);
  72         audit_register_class(AUDIT_CLASS_DIR_WRITE_32, compat_dir_class);
  73         audit_register_class(AUDIT_CLASS_CHATTR_32, compat_chattr_class);
  74         audit_register_class(AUDIT_CLASS_SIGNAL_32, compat_signal_class);
  75 #endif
  76         audit_register_class(AUDIT_CLASS_WRITE, write_class);
  77         audit_register_class(AUDIT_CLASS_READ, read_class);
  78         audit_register_class(AUDIT_CLASS_DIR_WRITE, dir_class);
  79         audit_register_class(AUDIT_CLASS_CHATTR, chattr_class);
  80         audit_register_class(AUDIT_CLASS_SIGNAL, signal_class);
  81         return 0;
  82 }
  83
  84 __initcall(audit_classes_init);