arch/x86/kernel/audit_64.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 #ifdef CONFIG_IA32_EMULATION
  34         if (arch == AUDIT_ARCH_I386)
  35                 return 1;
  36 #endif
  37         return 0;
  38 }
  39
  40 int audit_classify_syscall(int abi, unsigned syscall)
  41 {
  42 #ifdef CONFIG_IA32_EMULATION
  43         extern int ia32_classify_syscall(unsigned);
  44         if (abi == AUDIT_ARCH_I386)
  45                 return ia32_classify_syscall(syscall);
  46 #endif
  47         switch(syscall) {
  48         case __NR_open:
  49                 return 2;
  50         case __NR_openat:
  51                 return 3;
  52         case __NR_execve:
  53         case __NR_execveat:
  54                 return 5;
  55         default:
  56                 return 0;
  57         }
  58 }
  59
  60 static int __init audit_classes_init(void)
  61 {
  62 #ifdef CONFIG_IA32_EMULATION
  63         extern __u32 ia32_dir_class[];
  64         extern __u32 ia32_write_class[];
  65         extern __u32 ia32_read_class[];
  66         extern __u32 ia32_chattr_class[];
  67         extern __u32 ia32_signal_class[];
  68         audit_register_class(AUDIT_CLASS_WRITE_32, ia32_write_class);
  69         audit_register_class(AUDIT_CLASS_READ_32, ia32_read_class);
  70         audit_register_class(AUDIT_CLASS_DIR_WRITE_32, ia32_dir_class);
  71         audit_register_class(AUDIT_CLASS_CHATTR_32, ia32_chattr_class);
  72         audit_register_class(AUDIT_CLASS_SIGNAL_32, ia32_signal_class);
  73 #endif
  74         audit_register_class(AUDIT_CLASS_WRITE, write_class);
  75         audit_register_class(AUDIT_CLASS_READ, read_class);
  76         audit_register_class(AUDIT_CLASS_DIR_WRITE, dir_class);
  77         audit_register_class(AUDIT_CLASS_CHATTR, chattr_class);
  78         audit_register_class(AUDIT_CLASS_SIGNAL, signal_class);
  79         return 0;
  80 }
  81
  82 __initcall(audit_classes_init);