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 #include <asm/audit.h> 7 8 static unsigned dir_class[] = { 9 #include <asm-generic/audit_dir_write.h> 10 ~0U 11 }; 12 13 static unsigned read_class[] = { 14 #include <asm-generic/audit_read.h> 15 ~0U 16 }; 17 18 static unsigned write_class[] = { 19 #include <asm-generic/audit_write.h> 20 ~0U 21 }; 22 23 static unsigned chattr_class[] = { 24 #include <asm-generic/audit_change_attr.h> 25 ~0U 26 }; 27 28 static unsigned signal_class[] = { 29 #include <asm-generic/audit_signal.h> 30 ~0U 31 }; 32 33 int audit_classify_arch(int arch) 34 { 35 #ifdef CONFIG_IA32_EMULATION 36 if (arch == AUDIT_ARCH_I386) 37 return 1; 38 #endif 39 return 0; 40 } 41 42 int audit_classify_syscall(int abi, unsigned syscall) 43 { 44 #ifdef CONFIG_IA32_EMULATION 45 if (abi == AUDIT_ARCH_I386) 46 return ia32_classify_syscall(syscall); 47 #endif 48 switch(syscall) { 49 case __NR_open: 50 return AUDITSC_OPEN; 51 case __NR_openat: 52 return AUDITSC_OPENAT; 53 case __NR_execve: 54 case __NR_execveat: 55 return AUDITSC_EXECVE; 56 case __NR_openat2: 57 return AUDITSC_OPENAT2; 58 default: 59 return AUDITSC_NATIVE; 60 } 61 } 62 63 static int __init audit_classes_init(void) 64 { 65 #ifdef CONFIG_IA32_EMULATION 66 extern __u32 ia32_dir_class[]; 67 extern __u32 ia32_write_class[]; 68 extern __u32 ia32_read_class[]; 69 extern __u32 ia32_chattr_class[]; 70 extern __u32 ia32_signal_class[]; 71 audit_register_class(AUDIT_CLASS_WRITE_32, ia32_write_class); 72 audit_register_class(AUDIT_CLASS_READ_32, ia32_read_class); 73 audit_register_class(AUDIT_CLASS_DIR_WRITE_32, ia32_dir_class); 74 audit_register_class(AUDIT_CLASS_CHATTR_32, ia32_chattr_class); 75 audit_register_class(AUDIT_CLASS_SIGNAL_32, ia32_signal_class); 76 #endif 77 audit_register_class(AUDIT_CLASS_WRITE, write_class); 78 audit_register_class(AUDIT_CLASS_READ, read_class); 79 audit_register_class(AUDIT_CLASS_DIR_WRITE, dir_class); 80 audit_register_class(AUDIT_CLASS_CHATTR, chattr_class); 81 audit_register_class(AUDIT_CLASS_SIGNAL, signal_class); 82 return 0; 83 } 84 85 __initcall(audit_classes_init); 86