1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef __LKDTM_H 3 #define __LKDTM_H 4 5 #define pr_fmt(fmt) "lkdtm: " fmt 6 7 #include <linux/kernel.h> 8 9 #define pr_expected_config(kconfig) \ 10 { \ 11 if (IS_ENABLED(kconfig)) \ 12 pr_err("Unexpected! This kernel was built with " #kconfig "=y\n"); \ 13 else \ 14 pr_warn("This is probably expected, since this kernel was built *without* " #kconfig "=y\n"); \ 15 } 16 17 #ifndef MODULE 18 int lkdtm_check_bool_cmdline(const char *param); 19 #define pr_expected_config_param(kconfig, param) \ 20 { \ 21 if (IS_ENABLED(kconfig)) { \ 22 switch (lkdtm_check_bool_cmdline(param)) { \ 23 case 0: \ 24 pr_warn("This is probably expected, since this kernel was built with " #kconfig "=y but booted with '" param "=N'\n"); \ 25 break; \ 26 case 1: \ 27 pr_err("Unexpected! This kernel was built with " #kconfig "=y and booted with '" param "=Y'\n"); \ 28 break; \ 29 default: \ 30 pr_err("Unexpected! This kernel was built with " #kconfig "=y (and booted without '" param "' specified)\n"); \ 31 } \ 32 } else { \ 33 switch (lkdtm_check_bool_cmdline(param)) { \ 34 case 0: \ 35 pr_warn("This is probably expected, as kernel was built *without* " #kconfig "=y and booted with '" param "=N'\n"); \ 36 break; \ 37 case 1: \ 38 pr_err("Unexpected! This kernel was built *without* " #kconfig "=y but booted with '" param "=Y'\n"); \ 39 break; \ 40 default: \ 41 pr_err("This is probably expected, since this kernel was built *without* " #kconfig "=y (and booted without '" param "' specified)\n"); \ 42 break; \ 43 } \ 44 } \ 45 } 46 #else 47 #define pr_expected_config_param(kconfig, param) pr_expected_config(kconfig) 48 #endif 49 50 /* bugs.c */ 51 void __init lkdtm_bugs_init(int *recur_param); 52 void lkdtm_PANIC(void); 53 void lkdtm_BUG(void); 54 void lkdtm_WARNING(void); 55 void lkdtm_WARNING_MESSAGE(void); 56 void lkdtm_EXCEPTION(void); 57 void lkdtm_LOOP(void); 58 void lkdtm_EXHAUST_STACK(void); 59 void lkdtm_CORRUPT_STACK(void); 60 void lkdtm_CORRUPT_STACK_STRONG(void); 61 void lkdtm_REPORT_STACK(void); 62 void lkdtm_UNALIGNED_LOAD_STORE_WRITE(void); 63 void lkdtm_SOFTLOCKUP(void); 64 void lkdtm_HARDLOCKUP(void); 65 void lkdtm_SPINLOCKUP(void); 66 void lkdtm_HUNG_TASK(void); 67 void lkdtm_OVERFLOW_SIGNED(void); 68 void lkdtm_OVERFLOW_UNSIGNED(void); 69 void lkdtm_ARRAY_BOUNDS(void); 70 void lkdtm_CORRUPT_LIST_ADD(void); 71 void lkdtm_CORRUPT_LIST_DEL(void); 72 void lkdtm_STACK_GUARD_PAGE_LEADING(void); 73 void lkdtm_STACK_GUARD_PAGE_TRAILING(void); 74 void lkdtm_UNSET_SMEP(void); 75 void lkdtm_DOUBLE_FAULT(void); 76 void lkdtm_CORRUPT_PAC(void); 77 void lkdtm_FORTIFY_OBJECT(void); 78 void lkdtm_FORTIFY_SUBOBJECT(void); 79 80 /* heap.c */ 81 void __init lkdtm_heap_init(void); 82 void __exit lkdtm_heap_exit(void); 83 void lkdtm_VMALLOC_LINEAR_OVERFLOW(void); 84 void lkdtm_SLAB_LINEAR_OVERFLOW(void); 85 void lkdtm_WRITE_AFTER_FREE(void); 86 void lkdtm_READ_AFTER_FREE(void); 87 void lkdtm_WRITE_BUDDY_AFTER_FREE(void); 88 void lkdtm_READ_BUDDY_AFTER_FREE(void); 89 void lkdtm_SLAB_INIT_ON_ALLOC(void); 90 void lkdtm_BUDDY_INIT_ON_ALLOC(void); 91 void lkdtm_SLAB_FREE_DOUBLE(void); 92 void lkdtm_SLAB_FREE_CROSS(void); 93 void lkdtm_SLAB_FREE_PAGE(void); 94 95 /* perms.c */ 96 void __init lkdtm_perms_init(void); 97 void lkdtm_WRITE_RO(void); 98 void lkdtm_WRITE_RO_AFTER_INIT(void); 99 void lkdtm_WRITE_KERN(void); 100 void lkdtm_EXEC_DATA(void); 101 void lkdtm_EXEC_STACK(void); 102 void lkdtm_EXEC_KMALLOC(void); 103 void lkdtm_EXEC_VMALLOC(void); 104 void lkdtm_EXEC_RODATA(void); 105 void lkdtm_EXEC_USERSPACE(void); 106 void lkdtm_EXEC_NULL(void); 107 void lkdtm_ACCESS_USERSPACE(void); 108 void lkdtm_ACCESS_NULL(void); 109 110 /* refcount.c */ 111 void lkdtm_REFCOUNT_INC_OVERFLOW(void); 112 void lkdtm_REFCOUNT_ADD_OVERFLOW(void); 113 void lkdtm_REFCOUNT_INC_NOT_ZERO_OVERFLOW(void); 114 void lkdtm_REFCOUNT_ADD_NOT_ZERO_OVERFLOW(void); 115 void lkdtm_REFCOUNT_DEC_ZERO(void); 116 void lkdtm_REFCOUNT_DEC_NEGATIVE(void); 117 void lkdtm_REFCOUNT_DEC_AND_TEST_NEGATIVE(void); 118 void lkdtm_REFCOUNT_SUB_AND_TEST_NEGATIVE(void); 119 void lkdtm_REFCOUNT_INC_ZERO(void); 120 void lkdtm_REFCOUNT_ADD_ZERO(void); 121 void lkdtm_REFCOUNT_INC_SATURATED(void); 122 void lkdtm_REFCOUNT_DEC_SATURATED(void); 123 void lkdtm_REFCOUNT_ADD_SATURATED(void); 124 void lkdtm_REFCOUNT_INC_NOT_ZERO_SATURATED(void); 125 void lkdtm_REFCOUNT_ADD_NOT_ZERO_SATURATED(void); 126 void lkdtm_REFCOUNT_DEC_AND_TEST_SATURATED(void); 127 void lkdtm_REFCOUNT_SUB_AND_TEST_SATURATED(void); 128 void lkdtm_REFCOUNT_TIMING(void); 129 void lkdtm_ATOMIC_TIMING(void); 130 131 /* rodata.c */ 132 void lkdtm_rodata_do_nothing(void); 133 134 /* usercopy.c */ 135 void __init lkdtm_usercopy_init(void); 136 void __exit lkdtm_usercopy_exit(void); 137 void lkdtm_USERCOPY_HEAP_SIZE_TO(void); 138 void lkdtm_USERCOPY_HEAP_SIZE_FROM(void); 139 void lkdtm_USERCOPY_HEAP_WHITELIST_TO(void); 140 void lkdtm_USERCOPY_HEAP_WHITELIST_FROM(void); 141 void lkdtm_USERCOPY_STACK_FRAME_TO(void); 142 void lkdtm_USERCOPY_STACK_FRAME_FROM(void); 143 void lkdtm_USERCOPY_STACK_BEYOND(void); 144 void lkdtm_USERCOPY_KERNEL(void); 145 146 /* stackleak.c */ 147 void lkdtm_STACKLEAK_ERASING(void); 148 149 /* cfi.c */ 150 void lkdtm_CFI_FORWARD_PROTO(void); 151 152 /* fortify.c */ 153 void lkdtm_FORTIFIED_STRSCPY(void); 154 155 /* powerpc.c */ 156 void lkdtm_PPC_SLB_MULTIHIT(void); 157 158 #endif 159