Greg Kroah-Hartman | b244131 | 2017-11-01 15:07:57 +0100 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0 |
Al Viro | b915543 | 2006-07-01 03:56:16 -0400 | [diff] [blame] | 2 | #include <linux/init.h> |
| 3 | #include <linux/types.h> |
| 4 | #include <linux/audit.h> |
| 5 | #include <asm/unistd.h> |
Benjamin Thiel | 0e5e3d4 | 2020-05-16 14:38:16 +0200 | [diff] [blame] | 6 | #include <asm/audit.h> |
Al Viro | b915543 | 2006-07-01 03:56:16 -0400 | [diff] [blame] | 7 | |
| 8 | static unsigned dir_class[] = { |
| 9 | #include <asm-generic/audit_dir_write.h> |
| 10 | ~0U |
| 11 | }; |
| 12 | |
Al Viro | dc104fb | 2006-08-31 19:05:56 -0400 | [diff] [blame] | 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 | |
Al Viro | b915543 | 2006-07-01 03:56:16 -0400 | [diff] [blame] | 23 | static unsigned chattr_class[] = { |
| 24 | #include <asm-generic/audit_change_attr.h> |
| 25 | ~0U |
| 26 | }; |
| 27 | |
Amy Griffis | 7f13da4 | 2007-03-29 18:00:37 -0400 | [diff] [blame] | 28 | static unsigned signal_class[] = { |
| 29 | #include <asm-generic/audit_signal.h> |
| 30 | ~0U |
| 31 | }; |
| 32 | |
Amy Griffis | e54dc24 | 2007-03-29 18:01:04 -0400 | [diff] [blame] | 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 | |
Al Viro | 55669bf | 2006-08-31 19:26:40 -0400 | [diff] [blame] | 42 | int audit_classify_syscall(int abi, unsigned syscall) |
| 43 | { |
| 44 | #ifdef CONFIG_IA32_EMULATION |
Al Viro | 55669bf | 2006-08-31 19:26:40 -0400 | [diff] [blame] | 45 | if (abi == AUDIT_ARCH_I386) |
| 46 | return ia32_classify_syscall(syscall); |
| 47 | #endif |
| 48 | switch(syscall) { |
| 49 | case __NR_open: |
Richard Guy Briggs | 42f355e | 2021-05-19 16:00:20 -0400 | [diff] [blame] | 50 | return AUDITSC_OPEN; |
Al Viro | 55669bf | 2006-08-31 19:26:40 -0400 | [diff] [blame] | 51 | case __NR_openat: |
Richard Guy Briggs | 42f355e | 2021-05-19 16:00:20 -0400 | [diff] [blame] | 52 | return AUDITSC_OPENAT; |
Al Viro | 55669bf | 2006-08-31 19:26:40 -0400 | [diff] [blame] | 53 | case __NR_execve: |
David Drysdale | 27d6ec7 | 2014-12-12 16:57:33 -0800 | [diff] [blame] | 54 | case __NR_execveat: |
Richard Guy Briggs | 42f355e | 2021-05-19 16:00:20 -0400 | [diff] [blame] | 55 | return AUDITSC_EXECVE; |
Richard Guy Briggs | 1c30e3a | 2021-05-19 16:00:21 -0400 | [diff] [blame] | 56 | case __NR_openat2: |
| 57 | return AUDITSC_OPENAT2; |
Al Viro | 55669bf | 2006-08-31 19:26:40 -0400 | [diff] [blame] | 58 | default: |
Richard Guy Briggs | 42f355e | 2021-05-19 16:00:20 -0400 | [diff] [blame] | 59 | return AUDITSC_NATIVE; |
Al Viro | 55669bf | 2006-08-31 19:26:40 -0400 | [diff] [blame] | 60 | } |
| 61 | } |
| 62 | |
Al Viro | b915543 | 2006-07-01 03:56:16 -0400 | [diff] [blame] | 63 | static int __init audit_classes_init(void) |
| 64 | { |
| 65 | #ifdef CONFIG_IA32_EMULATION |
| 66 | extern __u32 ia32_dir_class[]; |
Al Viro | dc104fb | 2006-08-31 19:05:56 -0400 | [diff] [blame] | 67 | extern __u32 ia32_write_class[]; |
| 68 | extern __u32 ia32_read_class[]; |
Al Viro | b915543 | 2006-07-01 03:56:16 -0400 | [diff] [blame] | 69 | extern __u32 ia32_chattr_class[]; |
Amy Griffis | 7f13da4 | 2007-03-29 18:00:37 -0400 | [diff] [blame] | 70 | extern __u32 ia32_signal_class[]; |
Al Viro | dc104fb | 2006-08-31 19:05:56 -0400 | [diff] [blame] | 71 | audit_register_class(AUDIT_CLASS_WRITE_32, ia32_write_class); |
| 72 | audit_register_class(AUDIT_CLASS_READ_32, ia32_read_class); |
Al Viro | b915543 | 2006-07-01 03:56:16 -0400 | [diff] [blame] | 73 | audit_register_class(AUDIT_CLASS_DIR_WRITE_32, ia32_dir_class); |
| 74 | audit_register_class(AUDIT_CLASS_CHATTR_32, ia32_chattr_class); |
Amy Griffis | 7f13da4 | 2007-03-29 18:00:37 -0400 | [diff] [blame] | 75 | audit_register_class(AUDIT_CLASS_SIGNAL_32, ia32_signal_class); |
Al Viro | b915543 | 2006-07-01 03:56:16 -0400 | [diff] [blame] | 76 | #endif |
Al Viro | dc104fb | 2006-08-31 19:05:56 -0400 | [diff] [blame] | 77 | audit_register_class(AUDIT_CLASS_WRITE, write_class); |
| 78 | audit_register_class(AUDIT_CLASS_READ, read_class); |
Al Viro | b915543 | 2006-07-01 03:56:16 -0400 | [diff] [blame] | 79 | audit_register_class(AUDIT_CLASS_DIR_WRITE, dir_class); |
| 80 | audit_register_class(AUDIT_CLASS_CHATTR, chattr_class); |
Amy Griffis | 7f13da4 | 2007-03-29 18:00:37 -0400 | [diff] [blame] | 81 | audit_register_class(AUDIT_CLASS_SIGNAL, signal_class); |
Al Viro | b915543 | 2006-07-01 03:56:16 -0400 | [diff] [blame] | 82 | return 0; |
| 83 | } |
| 84 | |
| 85 | __initcall(audit_classes_init); |