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 #include <generated/compile.h> 9 #include <generated/utsrelease.h> 10 11 #define LKDTM_KERNEL "kernel (" UTS_RELEASE " " UTS_MACHINE ")" 12 13 #define pr_expected_config(kconfig) \ 14 { \ 15 if (IS_ENABLED(kconfig)) \ 16 pr_err("Unexpected! This " LKDTM_KERNEL " was built with " #kconfig "=y\n"); \ 17 else \ 18 pr_warn("This is probably expected, since this " LKDTM_KERNEL " was built *without* " #kconfig "=y\n"); \ 19 } 20 21 #ifndef MODULE 22 int lkdtm_check_bool_cmdline(const char *param); 23 #define pr_expected_config_param(kconfig, param) \ 24 { \ 25 if (IS_ENABLED(kconfig)) { \ 26 switch (lkdtm_check_bool_cmdline(param)) { \ 27 case 0: \ 28 pr_warn("This is probably expected, since this " LKDTM_KERNEL " was built with " #kconfig "=y but booted with '" param "=N'\n"); \ 29 break; \ 30 case 1: \ 31 pr_err("Unexpected! This " LKDTM_KERNEL " was built with " #kconfig "=y and booted with '" param "=Y'\n"); \ 32 break; \ 33 default: \ 34 pr_err("Unexpected! This " LKDTM_KERNEL " was built with " #kconfig "=y (and booted without '" param "' specified)\n"); \ 35 } \ 36 } else { \ 37 switch (lkdtm_check_bool_cmdline(param)) { \ 38 case 0: \ 39 pr_warn("This is probably expected, as this " LKDTM_KERNEL " was built *without* " #kconfig "=y and booted with '" param "=N'\n"); \ 40 break; \ 41 case 1: \ 42 pr_err("Unexpected! This " LKDTM_KERNEL " was built *without* " #kconfig "=y but booted with '" param "=Y'\n"); \ 43 break; \ 44 default: \ 45 pr_err("This is probably expected, since this " LKDTM_KERNEL " was built *without* " #kconfig "=y (and booted without '" param "' specified)\n"); \ 46 break; \ 47 } \ 48 } \ 49 } 50 #else 51 #define pr_expected_config_param(kconfig, param) pr_expected_config(kconfig) 52 #endif 53 54 /* bugs.c */ 55 void __init lkdtm_bugs_init(int *recur_param); 56 void lkdtm_PANIC(void); 57 void lkdtm_BUG(void); 58 void lkdtm_WARNING(void); 59 void lkdtm_WARNING_MESSAGE(void); 60 void lkdtm_EXCEPTION(void); 61 void lkdtm_LOOP(void); 62 void lkdtm_EXHAUST_STACK(void); 63 void lkdtm_CORRUPT_STACK(void); 64 void lkdtm_CORRUPT_STACK_STRONG(void); 65 void lkdtm_REPORT_STACK(void); 66 void lkdtm_UNALIGNED_LOAD_STORE_WRITE(void); 67 void lkdtm_SOFTLOCKUP(void); 68 void lkdtm_HARDLOCKUP(void); 69 void lkdtm_SPINLOCKUP(void); 70 void lkdtm_HUNG_TASK(void); 71 void lkdtm_OVERFLOW_SIGNED(void); 72 void lkdtm_OVERFLOW_UNSIGNED(void); 73 void lkdtm_ARRAY_BOUNDS(void); 74 void lkdtm_CORRUPT_LIST_ADD(void); 75 void lkdtm_CORRUPT_LIST_DEL(void); 76 void lkdtm_STACK_GUARD_PAGE_LEADING(void); 77 void lkdtm_STACK_GUARD_PAGE_TRAILING(void); 78 void lkdtm_UNSET_SMEP(void); 79 void lkdtm_DOUBLE_FAULT(void); 80 void lkdtm_CORRUPT_PAC(void); 81 82 /* heap.c */ 83 void __init lkdtm_heap_init(void); 84 void __exit lkdtm_heap_exit(void); 85 void lkdtm_VMALLOC_LINEAR_OVERFLOW(void); 86 void lkdtm_SLAB_LINEAR_OVERFLOW(void); 87 void lkdtm_WRITE_AFTER_FREE(void); 88 void lkdtm_READ_AFTER_FREE(void); 89 void lkdtm_WRITE_BUDDY_AFTER_FREE(void); 90 void lkdtm_READ_BUDDY_AFTER_FREE(void); 91 void lkdtm_SLAB_INIT_ON_ALLOC(void); 92 void lkdtm_BUDDY_INIT_ON_ALLOC(void); 93 void lkdtm_SLAB_FREE_DOUBLE(void); 94 void lkdtm_SLAB_FREE_CROSS(void); 95 void lkdtm_SLAB_FREE_PAGE(void); 96 97 /* perms.c */ 98 void __init lkdtm_perms_init(void); 99 void lkdtm_WRITE_RO(void); 100 void lkdtm_WRITE_RO_AFTER_INIT(void); 101 void lkdtm_WRITE_KERN(void); 102 void lkdtm_EXEC_DATA(void); 103 void lkdtm_EXEC_STACK(void); 104 void lkdtm_EXEC_KMALLOC(void); 105 void lkdtm_EXEC_VMALLOC(void); 106 void lkdtm_EXEC_RODATA(void); 107 void lkdtm_EXEC_USERSPACE(void); 108 void lkdtm_EXEC_NULL(void); 109 void lkdtm_ACCESS_USERSPACE(void); 110 void lkdtm_ACCESS_NULL(void); 111 112 /* refcount.c */ 113 void lkdtm_REFCOUNT_INC_OVERFLOW(void); 114 void lkdtm_REFCOUNT_ADD_OVERFLOW(void); 115 void lkdtm_REFCOUNT_INC_NOT_ZERO_OVERFLOW(void); 116 void lkdtm_REFCOUNT_ADD_NOT_ZERO_OVERFLOW(void); 117 void lkdtm_REFCOUNT_DEC_ZERO(void); 118 void lkdtm_REFCOUNT_DEC_NEGATIVE(void); 119 void lkdtm_REFCOUNT_DEC_AND_TEST_NEGATIVE(void); 120 void lkdtm_REFCOUNT_SUB_AND_TEST_NEGATIVE(void); 121 void lkdtm_REFCOUNT_INC_ZERO(void); 122 void lkdtm_REFCOUNT_ADD_ZERO(void); 123 void lkdtm_REFCOUNT_INC_SATURATED(void); 124 void lkdtm_REFCOUNT_DEC_SATURATED(void); 125 void lkdtm_REFCOUNT_ADD_SATURATED(void); 126 void lkdtm_REFCOUNT_INC_NOT_ZERO_SATURATED(void); 127 void lkdtm_REFCOUNT_ADD_NOT_ZERO_SATURATED(void); 128 void lkdtm_REFCOUNT_DEC_AND_TEST_SATURATED(void); 129 void lkdtm_REFCOUNT_SUB_AND_TEST_SATURATED(void); 130 void lkdtm_REFCOUNT_TIMING(void); 131 void lkdtm_ATOMIC_TIMING(void); 132 133 /* rodata.c */ 134 void lkdtm_rodata_do_nothing(void); 135 136 /* usercopy.c */ 137 void __init lkdtm_usercopy_init(void); 138 void __exit lkdtm_usercopy_exit(void); 139 void lkdtm_USERCOPY_HEAP_SIZE_TO(void); 140 void lkdtm_USERCOPY_HEAP_SIZE_FROM(void); 141 void lkdtm_USERCOPY_HEAP_WHITELIST_TO(void); 142 void lkdtm_USERCOPY_HEAP_WHITELIST_FROM(void); 143 void lkdtm_USERCOPY_STACK_FRAME_TO(void); 144 void lkdtm_USERCOPY_STACK_FRAME_FROM(void); 145 void lkdtm_USERCOPY_STACK_BEYOND(void); 146 void lkdtm_USERCOPY_KERNEL(void); 147 148 /* stackleak.c */ 149 void lkdtm_STACKLEAK_ERASING(void); 150 151 /* cfi.c */ 152 void lkdtm_CFI_FORWARD_PROTO(void); 153 154 /* fortify.c */ 155 void lkdtm_FORTIFIED_OBJECT(void); 156 void lkdtm_FORTIFIED_SUBOBJECT(void); 157 void lkdtm_FORTIFIED_STRSCPY(void); 158 159 /* powerpc.c */ 160 void lkdtm_PPC_SLB_MULTIHIT(void); 161 162 #endif 163