arch/powerpc/kernel/audit.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 #include <linux/init.h>
   3 #include <linux/types.h>
   4 #include <linux/audit.h>
   5 #include <asm/unistd.h>
   6
   7 #include "audit_32.h"
   8
   9 static unsigned dir_class[] = {
  10 #include <asm-generic/audit_dir_write.h>
  11 ~0U
  12 };
  13
  14 static unsigned read_class[] = {
  15 #include <asm-generic/audit_read.h>
  16 ~0U
  17 };
  18
  19 static unsigned write_class[] = {
  20 #include <asm-generic/audit_write.h>
  21 ~0U
  22 };
  23
  24 static unsigned chattr_class[] = {
  25 #include <asm-generic/audit_change_attr.h>
  26 ~0U
  27 };
  28
  29 static unsigned signal_class[] = {
  30 #include <asm-generic/audit_signal.h>
  31 ~0U
  32 };
  33
  34 int audit_classify_arch(int arch)
  35 {
  36 #ifdef CONFIG_PPC64
  37         if (arch == AUDIT_ARCH_PPC)
  38                 return 1;
  39 #endif
  40         return 0;
  41 }
  42
  43 int audit_classify_syscall(int abi, unsigned syscall)
  44 {
  45 #ifdef CONFIG_PPC64
  46         if (abi == AUDIT_ARCH_PPC)
  47                 return ppc32_classify_syscall(syscall);
  48 #endif
  49         switch(syscall) {
  50         case __NR_open:
  51                 return AUDITSC_OPEN;
  52         case __NR_openat:
  53                 return AUDITSC_OPENAT;
  54         case __NR_socketcall:
  55                 return AUDITSC_SOCKETCALL;
  56         case __NR_execve:
  57                 return AUDITSC_EXECVE;
  58         case __NR_openat2:
  59                 return AUDITSC_OPENAT2;
  60         default:
  61                 return AUDITSC_NATIVE;
  62         }
  63 }
  64
  65 static int __init audit_classes_init(void)
  66 {
  67 #ifdef CONFIG_PPC64
  68         extern __u32 ppc32_dir_class[];
  69         extern __u32 ppc32_write_class[];
  70         extern __u32 ppc32_read_class[];
  71         extern __u32 ppc32_chattr_class[];
  72         extern __u32 ppc32_signal_class[];
  73         audit_register_class(AUDIT_CLASS_WRITE_32, ppc32_write_class);
  74         audit_register_class(AUDIT_CLASS_READ_32, ppc32_read_class);
  75         audit_register_class(AUDIT_CLASS_DIR_WRITE_32, ppc32_dir_class);
  76         audit_register_class(AUDIT_CLASS_CHATTR_32, ppc32_chattr_class);
  77         audit_register_class(AUDIT_CLASS_SIGNAL_32, ppc32_signal_class);
  78 #endif
  79         audit_register_class(AUDIT_CLASS_WRITE, write_class);
  80         audit_register_class(AUDIT_CLASS_READ, read_class);
  81         audit_register_class(AUDIT_CLASS_DIR_WRITE, dir_class);
  82         audit_register_class(AUDIT_CLASS_CHATTR, chattr_class);
  83         audit_register_class(AUDIT_CLASS_SIGNAL, signal_class);
  84         return 0;
  85 }
  86
  87 __initcall(audit_classes_init);