^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) #include <linux/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) #include <linux/audit.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) #include <asm/unistd.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) static unsigned dir_class[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #include <asm-generic/audit_dir_write.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) ~0U
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) static unsigned read_class[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <asm-generic/audit_read.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) ~0U
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) static unsigned write_class[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <asm-generic/audit_write.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) ~0U
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) static unsigned chattr_class[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include <asm-generic/audit_change_attr.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) ~0U
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) static unsigned signal_class[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #include <asm-generic/audit_signal.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) ~0U
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) int audit_classify_arch(int arch)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) if (audit_is_compat(arch))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) int audit_classify_syscall(int abi, unsigned syscall)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) if (audit_is_compat(abi))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) return audit_classify_compat_syscall(abi, syscall);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) switch(syscall) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) #ifdef __NR_open
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) case __NR_open:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) return 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) #ifdef __NR_openat
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) case __NR_openat:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) return 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) #ifdef __NR_socketcall
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) case __NR_socketcall:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) return 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) #ifdef __NR_execveat
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) case __NR_execveat:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) case __NR_execve:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) return 5;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) static int __init audit_classes_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) #ifdef CONFIG_AUDIT_COMPAT_GENERIC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) audit_register_class(AUDIT_CLASS_WRITE_32, compat_write_class);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) audit_register_class(AUDIT_CLASS_READ_32, compat_read_class);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) audit_register_class(AUDIT_CLASS_DIR_WRITE_32, compat_dir_class);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) audit_register_class(AUDIT_CLASS_CHATTR_32, compat_chattr_class);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) audit_register_class(AUDIT_CLASS_SIGNAL_32, compat_signal_class);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) audit_register_class(AUDIT_CLASS_WRITE, write_class);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) audit_register_class(AUDIT_CLASS_READ, read_class);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) audit_register_class(AUDIT_CLASS_DIR_WRITE, dir_class);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) audit_register_class(AUDIT_CLASS_CHATTR, chattr_class);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) audit_register_class(AUDIT_CLASS_SIGNAL, signal_class);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) __initcall(audit_classes_init);