#include #include #include "vm_parameter_validation.h" #pragma clang diagnostic ignored "-Wdeclaration-after-statement" #pragma clang diagnostic ignored "-Wincompatible-function-pointer-types" #pragma clang diagnostic ignored "-Wmissing-prototypes" #pragma clang diagnostic ignored "-Wpedantic" #pragma clang diagnostic ignored "-Wgcc-compat" #pragma clang diagnostic ignored "-Wunused-variable" // Kernel sysctl test prints its output into a userspace buffer. // fixme these global variables prevent test concurrency static user_addr_t SYSCTL_OUTPUT_BUF; static user_addr_t SYSCTL_OUTPUT_END; // This is a read/write fd passed from userspace. // It's passed to make it easier for kernel tests to interact with a file. static int file_descriptor; // Output to create a golden test result in kern test, controlled by // vm_parameter_validation_kern_golden=1 bool kernel_generate_golden = FALSE; // vprintf() to a userspace buffer // output is incremented to point at the new nul terminator static void user_vprintf(user_addr_t *output, user_addr_t output_end, const char *format, va_list args) __printflike(3, 0) { extern int vsnprintf(char *, size_t, const char *, va_list) __printflike(3, 0); char linebuf[1024]; size_t printed; printed = vsnprintf(linebuf, sizeof(linebuf), format, args); assert(printed < sizeof(linebuf) - 1); assert(*output + printed + 1 < output_end); copyout(linebuf, *output, printed + 1); *output += printed; } void testprintf(const char *format, ...) { va_list args; va_start(args, format); user_vprintf(&SYSCTL_OUTPUT_BUF, SYSCTL_OUTPUT_END, format, args); va_end(args); } // Utils static mach_port_t make_a_mem_object(vm_size_t size) { ipc_port_t out_handle; kern_return_t kr = mach_memory_object_memory_entry_64((host_t)1, /*internal=*/ true, size, VM_PROT_READ | VM_PROT_WRITE, 0, &out_handle); assert(kr == 0); return out_handle; } static mach_port_t make_a_mem_entry(MAP_T map, vm_size_t size) { mach_port_t port; memory_object_size_t s = (memory_object_size_t)size; kern_return_t kr = mach_make_memory_entry_64(map, &s, (memory_object_offset_t)0, MAP_MEM_NAMED_CREATE | MAP_MEM_LEDGER_TAGGED, &port, MACH_PORT_NULL); assert(kr == 0); return port; } // Test functions static results_t * test_vm_map_copy_overwrite(kern_return_t (*func)(MAP_T dst_map, vm_map_copy_t copy, mach_vm_address_t start, mach_vm_size_t size), const char * testname) { // source map: has an allocation bigger than our // "reasonable" trial sizes, to copy from MAP_T src_map SMART_MAP; allocation_t src_alloc SMART_ALLOCATE_VM(src_map, TEST_ALLOC_SIZE, VM_PROT_READ); // dest map: has an allocation bigger than our // "reasonable" trial sizes, to copy-overwrite on MAP_T dst_map SMART_MAP; allocation_t dst_alloc SMART_ALLOCATE_VM(dst_map, TEST_ALLOC_SIZE, VM_PROT_DEFAULT); // We test dst/size parameters. // We don't test the contents of the vm_map_copy_t. start_size_trials_t *trials SMART_START_SIZE_TRIALS(dst_alloc.addr); results_t *results = alloc_results(testname, trials->count); for (unsigned i = 0; i < trials->count; i++) { start_size_trial_t trial = trials->list[i]; // Copy from the source. vm_map_copy_t copy; kern_return_t kr = vm_map_copyin(src_map, src_alloc.addr, src_alloc.size, false, ©); assert(kr == 0); assert(copy); // null copy won't exercise the sanitization path // Copy-overwrite to the destination. kern_return_t ret = func(dst_map, copy, trial.start, trial.size); if (ret != KERN_SUCCESS) { vm_map_copy_discard(copy); } append_result(results, ret, trial.name); } return results; } /* * This function temporarily allocates a writeable allocation in kernel_map, and a read only allocation in a temporary map. * It's used to test a function such as vm_map_read_user which copies in data to a kernel pointer that must be writeable. */ static results_t * test_src_kerneldst_size(kern_return_t (*func)(MAP_T map, vm_map_offset_t src, void * dst, vm_size_t length), const char * testname) { MAP_T map SMART_MAP; allocation_t src_base SMART_ALLOCATE_VM(map, TEST_ALLOC_SIZE, VM_PROT_READ); allocation_t dst_base SMART_ALLOCATE_VM(kernel_map, TEST_ALLOC_SIZE, VM_PROT_DEFAULT); src_dst_size_trials_t * trials SMART_SRC_DST_SIZE_TRIALS(); results_t *results = alloc_results(testname, trials->count); for (unsigned i = 0; i < trials->count; i++) { src_dst_size_trial_t trial = trials->list[i]; trial = slide_trial_src(trial, src_base.addr); trial = slide_trial_dst(trial, dst_base.addr); int ret = func(map, trial.src, (void *)trial.dst, trial.size); append_result(results, ret, trial.name); } return results; } /* * This function temporarily allocates a read only allocation in kernel_map, and a writeable allocation in a temporary map. * It's used to test a function such as vm_map_write_user which copies data from a kernel pointer to a writeable userspace address. */ static results_t * test_kernelsrc_dst_size(kern_return_t (*func)(MAP_T map, void *src, vm_map_offset_t dst, vm_size_t length), const char * testname) { MAP_T map SMART_MAP; allocation_t src_base SMART_ALLOCATE_VM(kernel_map, TEST_ALLOC_SIZE, VM_PROT_READ); allocation_t dst_base SMART_ALLOCATE_VM(map, TEST_ALLOC_SIZE, VM_PROT_DEFAULT); src_dst_size_trials_t * trials SMART_SRC_DST_SIZE_TRIALS(); results_t *results = alloc_results(testname, trials->count); for (unsigned i = 0; i < trials->count; i++) { src_dst_size_trial_t trial = trials->list[i]; trial = slide_trial_src(trial, src_base.addr); trial = slide_trial_dst(trial, dst_base.addr); int ret = func(map, (void *)trial.src, trial.dst, trial.size); append_result(results, ret, trial.name); } return results; } ///////////////////////////////////////////////////// // Mach tests static kern_return_t call_mach_vm_read(MAP_T map, mach_vm_address_t start, mach_vm_size_t size) { vm_offset_t out_addr; mach_msg_type_number_t out_size; kern_return_t kr = mach_vm_read(map, start, size, &out_addr, &out_size); if (kr == 0) { // we didn't call through MIG so out_addr is really a vm_map_copy_t vm_map_copy_discard((vm_map_copy_t)out_addr); } return kr; } static inline void check_vm_map_copyin_outparam_changes(kern_return_t * kr, vm_map_copy_t copy, vm_map_copy_t saved_copy) { if (*kr == KERN_SUCCESS) { if (copy == saved_copy) { *kr = OUT_PARAM_BAD; } } else { if (copy != saved_copy) { *kr = OUT_PARAM_BAD; } } } static kern_return_t call_vm_map_copyin(MAP_T map, mach_vm_address_t start, mach_vm_size_t size) { vm_map_copy_t invalid_initial_value = INVALID_INITIAL_COPY; vm_map_copy_t copy = invalid_initial_value; kern_return_t kr = vm_map_copyin(map, start, size, false, ©); if (kr == 0) { vm_map_copy_discard(copy); } check_vm_map_copyin_outparam_changes(&kr, copy, invalid_initial_value); return kr; } static kern_return_t call_copyoutmap_atomic32(MAP_T map, vm_map_offset_t addr) { uint32_t data = 0; kern_return_t kr = copyoutmap_atomic32(map, data, addr); return kr; } static kern_return_t call_mach_vm_allocate__flags(MAP_T map, mach_vm_address_t * start, mach_vm_size_t size, int flags) { mach_vm_address_t saved_start = *start; kern_return_t kr = mach_vm_allocate_external(map, start, size, flags); check_mach_vm_allocate_outparam_changes(&kr, *start, size, saved_start, flags, map); return kr; } static kern_return_t call_mach_vm_allocate__start_size_fixed(MAP_T map, mach_vm_address_t * start, mach_vm_size_t size) { mach_vm_address_t saved_start = *start; kern_return_t kr = mach_vm_allocate_external(map, start, size, VM_FLAGS_FIXED); check_mach_vm_allocate_outparam_changes(&kr, *start, size, saved_start, VM_FLAGS_FIXED, map); return kr; } static kern_return_t call_mach_vm_allocate__start_size_anywhere(MAP_T map, mach_vm_address_t * start, mach_vm_size_t size) { mach_vm_address_t saved_start = *start; kern_return_t kr = mach_vm_allocate_external(map, start, size, VM_FLAGS_ANYWHERE); check_mach_vm_allocate_outparam_changes(&kr, *start, size, saved_start, VM_FLAGS_ANYWHERE, map); return kr; } static kern_return_t call_mach_vm_allocate_kernel__flags(MAP_T map, mach_vm_address_t * start, mach_vm_size_t size, int flags) { mach_vm_address_t saved_start = *start; kern_return_t kr = mach_vm_allocate_kernel(map, start, size, FLAGS_AND_TAG(flags, VM_KERN_MEMORY_OSFMK)); check_mach_vm_allocate_outparam_changes(&kr, *start, size, saved_start, flags, map); return kr; } static kern_return_t call_mach_vm_allocate_kernel__start_size_fixed(MAP_T map, mach_vm_address_t * start, mach_vm_size_t size) { mach_vm_address_t saved_start = *start; mach_vm_address_t minus_two_kb16 = -2 * KB16; if (*start + size >= minus_two_kb16) { // Allocation actually works fine here. Deallocation does not. // It triggers a end < start assertion in pmap. Seems like some offset is added to the end of the region, which is -KB16 in these cases which overflows. return PANIC; } mach_vm_address_t before = *start; kern_return_t kr = mach_vm_allocate_kernel(map, start, size, FLAGS_AND_TAG(VM_FLAGS_FIXED, VM_KERN_MEMORY_OSFMK)); check_mach_vm_allocate_outparam_changes(&kr, *start, size, saved_start, VM_FLAGS_FIXED, map); return kr; } static kern_return_t call_mach_vm_allocate_kernel__start_size_anywhere(MAP_T map, mach_vm_address_t * start, mach_vm_size_t size) { mach_vm_address_t saved_start = *start; mach_vm_address_t minus_two_kb16 = -2 * KB16; if (*start + size >= minus_two_kb16) { // Allocation actually works fine here. Deallocation does not. // It triggers a end < start assertion in pmap. Seems like some offset is added to the end of the region, which is -KB16 in these cases which overflows. return PANIC; } kern_return_t kr = mach_vm_allocate_kernel(map, start, size, FLAGS_AND_TAG(VM_FLAGS_ANYWHERE, VM_KERN_MEMORY_OSFMK)); check_mach_vm_allocate_outparam_changes(&kr, *start, size, saved_start, VM_FLAGS_ANYWHERE, map); return kr; } static kern_return_t call_vm_allocate__flags(MAP_T map, mach_vm_address_t * start, mach_vm_size_t size, int flags) { mach_vm_address_t saved_start = *start; kern_return_t kr = vm_allocate(map, (vm_address_t *) start, (vm_size_t) size, flags); check_mach_vm_allocate_outparam_changes(&kr, *start, size, saved_start, flags, map); return kr; } static kern_return_t call_vm_allocate__start_size_fixed(MAP_T map, mach_vm_address_t * start, mach_vm_size_t size) { mach_vm_address_t saved_start = *start; kern_return_t kr = vm_allocate(map, (vm_address_t *) start, (vm_size_t) size, VM_FLAGS_FIXED); check_mach_vm_allocate_outparam_changes(&kr, *start, size, saved_start, VM_FLAGS_FIXED, map); return kr; } static kern_return_t call_vm_allocate__start_size_anywhere(MAP_T map, mach_vm_address_t * start, mach_vm_size_t size) { mach_vm_address_t saved_start = *start; kern_return_t kr = vm_allocate(map, (vm_address_t *) start, (vm_size_t) size, VM_FLAGS_ANYWHERE); check_mach_vm_allocate_outparam_changes(&kr, *start, size, saved_start, VM_FLAGS_ANYWHERE, map); return kr; } static kern_return_t call_mach_vm_deallocate(MAP_T map, mach_vm_address_t start, mach_vm_size_t size) { kern_return_t kr = mach_vm_deallocate(map, start, size); return kr; } static kern_return_t call_vm_deallocate(MAP_T map, mach_vm_address_t start, mach_vm_size_t size) { kern_return_t kr = vm_deallocate(map, (vm_address_t) start, (vm_size_t) size); return kr; } // Including sys/systm.h caused things to blow up int vslock(user_addr_t addr, user_size_t len); int vsunlock(user_addr_t addr, user_size_t len, int dirtied); static int call_vslock(void * start, size_t size) { int kr = vslock((user_addr_t) start, (user_size_t) size); if (kr == KERN_SUCCESS) { (void) vsunlock((user_addr_t) start, (user_size_t) size, 0); } return kr; } static int call_vsunlock_undirtied(void * start, size_t size) { int kr = vslock((user_addr_t) start, (user_size_t) size); if (kr == EINVAL) { // Invalid vslock arguments should also be // invalid vsunlock arguments. Test it. } else if (kr != KERN_SUCCESS) { // vslock failed, and vsunlock of non-locked memory panics return PANIC; } kr = vsunlock((user_addr_t) start, (user_size_t) size, 0); return kr; } static int call_vsunlock_dirtied(void * start, size_t size) { int kr = vslock((user_addr_t) start, (user_size_t) size); if (kr == EINVAL) { // Invalid vslock arguments should also be // invalid vsunlock arguments. Test it. } else if (kr != KERN_SUCCESS) { // vslock failed, and vsunlock of non-locked memory panics return PANIC; } kr = vsunlock((user_addr_t) start, (user_size_t) size, 1); return kr; } #if XNU_PLATFORM_MacOSX // vm_map_wire_and_extract() implemented on macOS only static inline void check_vm_map_wire_and_extract_out_params_changes(kern_return_t * kr, ppnum_t physpage) { if (*kr != KERN_SUCCESS) { if (physpage != 0) { *kr = OUT_PARAM_BAD; } } } static kern_return_t call_vm_map_wire_and_extract_user_wired(MAP_T map, mach_vm_address_t start) { if (will_wire_function_panic_due_to_alignment(start, start + VM_MAP_PAGE_SIZE(map))) { return PANIC; } if (will_wire_function_panic_due_to_vm_tag(start)) { return BUSTED; } ppnum_t physpage = INVALID_INITIAL_PPNUM; kern_return_t kr = vm_map_wire_and_extract(map, start, VM_PROT_DEFAULT, TRUE, &physpage); check_vm_map_wire_and_extract_out_params_changes(&kr, physpage); return kr; } static kern_return_t call_vm_map_wire_and_extract_non_user_wired(MAP_T map, mach_vm_address_t start) { if (will_wire_function_panic_due_to_alignment(start, start + VM_MAP_PAGE_SIZE(map))) { return PANIC; } if (will_wire_function_panic_due_to_vm_tag(start)) { return BUSTED; } ppnum_t physpage = INVALID_INITIAL_PPNUM; kern_return_t kr = vm_map_wire_and_extract(map, start, VM_PROT_DEFAULT, FALSE, &physpage); check_vm_map_wire_and_extract_out_params_changes(&kr, physpage); return kr; } static kern_return_t call_vm_map_wire_and_extract_vm_prot_t_user_wired(MAP_T map, mach_vm_address_t start, mach_vm_size_t size, vm_prot_t prot) { (void) size; if (will_wire_function_panic_due_to_alignment(start, start + VM_MAP_PAGE_SIZE(map))) { return PANIC; } if (will_wire_function_panic_due_to_vm_tag(start)) { return BUSTED; } ppnum_t physpage = INVALID_INITIAL_PPNUM; kern_return_t kr = vm_map_wire_and_extract(map, start, prot, TRUE, &physpage); check_vm_map_wire_and_extract_out_params_changes(&kr, physpage); return kr; } static kern_return_t call_vm_map_wire_and_extract_vm_prot_t_non_user_wired(MAP_T map, mach_vm_address_t start, mach_vm_size_t size, vm_prot_t prot) { (void) size; if (will_wire_function_panic_due_to_alignment(start, start + VM_MAP_PAGE_SIZE(map))) { return PANIC; } if (will_wire_function_panic_due_to_vm_tag(start)) { return BUSTED; } ppnum_t physpage = INVALID_INITIAL_PPNUM; kern_return_t kr = vm_map_wire_and_extract(map, start, prot, FALSE, &physpage); check_vm_map_wire_and_extract_out_params_changes(&kr, physpage); return kr; } #endif // XNU_PLATFORM_MacOSX extern kern_return_t vm_map_wire_external( vm_map_t map, vm_map_offset_t start, vm_map_offset_t end, vm_prot_t access_type, boolean_t user_wire); static kern_return_t call_vm_map_wire_external_user_wired(MAP_T map, mach_vm_address_t start, mach_vm_address_t end) { if (will_wire_function_panic_due_to_alignment(start, end)) { return PANIC; } if (will_wire_function_panic_due_to_vm_tag(start)) { return BUSTED; } kern_return_t kr = vm_map_wire_external(map, start, end, VM_PROT_DEFAULT, TRUE); return kr; } static kern_return_t call_vm_map_wire_external_non_user_wired(MAP_T map, mach_vm_address_t start, mach_vm_address_t end) { if (will_wire_function_panic_due_to_alignment(start, end)) { return PANIC; } if (will_wire_function_panic_due_to_vm_tag(start)) { return BUSTED; } kern_return_t kr = vm_map_wire_external(map, start, end, VM_PROT_DEFAULT, FALSE); if (kr == KERN_SUCCESS) { (void) vm_map_unwire(map, start, end, FALSE); } return kr; } static kern_return_t call_vm_map_wire_kernel_user_wired(MAP_T map, mach_vm_address_t start, mach_vm_address_t end) { if (will_wire_function_panic_due_to_alignment(start, end)) { return PANIC; } kern_return_t kr = vm_map_wire_kernel(map, start, end, VM_PROT_DEFAULT, VM_KERN_MEMORY_OSFMK, TRUE); return kr; } static kern_return_t call_vm_map_wire_kernel_non_user_wired(MAP_T map, mach_vm_address_t start, mach_vm_address_t end) { if (will_wire_function_panic_due_to_alignment(start, end)) { return PANIC; } kern_return_t kr = vm_map_wire_kernel(map, start, end, VM_PROT_DEFAULT, VM_KERN_MEMORY_OSFMK, FALSE); if (kr == KERN_SUCCESS) { (void) vm_map_unwire(map, start, end, FALSE); } return kr; } static kern_return_t call_vm_map_wire_external_vm_prot_t_user_wired(MAP_T map, mach_vm_address_t start, mach_vm_size_t size, vm_prot_t prot) { mach_vm_address_t end; if (__builtin_add_overflow(start, size, &end)) { return BUSTED; } if (will_wire_function_panic_due_to_alignment(start, end)) { return PANIC; } if (will_wire_function_panic_due_to_vm_tag(start)) { return BUSTED; } ppnum_t physpage; kern_return_t kr = vm_map_wire_external(map, start, end, prot, TRUE); return kr; } static kern_return_t call_vm_map_wire_external_vm_prot_t_non_user_wired(MAP_T map, mach_vm_address_t start, mach_vm_size_t size, vm_prot_t prot) { mach_vm_address_t end; if (__builtin_add_overflow(start, size, &end)) { return BUSTED; } if (will_wire_function_panic_due_to_alignment(start, end)) { return PANIC; } if (will_wire_function_panic_due_to_vm_tag(start)) { return BUSTED; } ppnum_t physpage; kern_return_t kr = vm_map_wire_external(map, start, end, prot, FALSE); if (kr == KERN_SUCCESS) { (void) vm_map_unwire(map, start, end, FALSE); } return kr; } static kern_return_t call_vm_map_wire_kernel_vm_prot_t_user_wired(MAP_T map, mach_vm_address_t start, mach_vm_size_t size, vm_prot_t prot) { mach_vm_address_t end; if (__builtin_add_overflow(start, size, &end)) { return BUSTED; } if (will_wire_function_panic_due_to_alignment(start, end)) { return PANIC; } ppnum_t physpage; kern_return_t kr = vm_map_wire_kernel(map, start, end, prot, VM_KERN_MEMORY_OSFMK, TRUE); return kr; } static kern_return_t call_vm_map_wire_kernel_vm_prot_t_non_user_wired(MAP_T map, mach_vm_address_t start, mach_vm_size_t size, vm_prot_t prot) { mach_vm_address_t end; if (__builtin_add_overflow(start, size, &end)) { return BUSTED; } if (will_wire_function_panic_due_to_alignment(start, end)) { return PANIC; } ppnum_t physpage; kern_return_t kr = vm_map_wire_kernel(map, start, end, prot, VM_KERN_MEMORY_OSFMK, FALSE); if (kr == KERN_SUCCESS) { (void) vm_map_unwire(map, start, end, FALSE); } return kr; } static kern_return_t call_vm_map_kernel_tag_user_wired(MAP_T map, mach_vm_address_t start, mach_vm_address_t end, vm_tag_t tag) { if (will_wire_function_panic_due_to_alignment(start, end)) { return PANIC; } if (tag == VM_KERN_MEMORY_NONE) { return PANIC; } kern_return_t kr = vm_map_wire_kernel(map, start, end, VM_PROT_DEFAULT, tag, TRUE); if (kr == KERN_SUCCESS) { (void) vm_map_unwire(map, start, end, TRUE); } return kr; } static kern_return_t call_vm_map_kernel_tag_non_user_wired(MAP_T map, mach_vm_address_t start, mach_vm_address_t end, vm_tag_t tag) { if (will_wire_function_panic_due_to_alignment(start, end)) { return PANIC; } if (tag == VM_KERN_MEMORY_NONE) { return PANIC; } kern_return_t kr = vm_map_wire_kernel(map, start, end, VM_PROT_DEFAULT, tag, FALSE); if (kr == KERN_SUCCESS) { (void) vm_map_unwire(map, start, end, FALSE); } return kr; } static kern_return_t call_mach_vm_wire_level_monitor(int64_t requested_pages) { kern_return_t kr = mach_vm_wire_level_monitor(requested_pages); return kr; } static kern_return_t call_vm_map_unwire_user_wired(MAP_T map, mach_vm_address_t start, mach_vm_address_t end) { if (will_wire_function_panic_due_to_alignment(start, end)) { return PANIC; } kern_return_t kr = vm_map_unwire(map, start, end, TRUE); return kr; } static kern_return_t call_vm_map_unwire_non_user_wired(MAP_T map, mach_vm_address_t start, mach_vm_address_t end) { if (will_wire_function_panic_due_to_alignment(start, end)) { return PANIC; } kern_return_t kr = vm_map_wire_kernel(map, start, end, VM_PROT_DEFAULT, VM_KERN_MEMORY_OSFMK, FALSE); if (kr) { return PANIC; } kr = vm_map_unwire(map, start, end, FALSE); return kr; } #ifndef __x86_64__ extern const vm_map_address_t physmap_base; extern const vm_map_address_t physmap_end; #endif /* * This function duplicates the panicking checks done in copy_validate. * size==0 is returned as success earlier in copyin/out than copy_validate is called, so we ignore that case. */ static bool will_copyio_panic_in_copy_validate(void *kernel_addr, vm_size_t size) { if (size == 0) { return false; } extern const int copysize_limit_panic; if (size > copysize_limit_panic) { return true; } /* * copyio is architecture specific and has different checks per arch. */ #ifdef __x86_64__ if ((vm_offset_t) kernel_addr < VM_MIN_KERNEL_AND_KEXT_ADDRESS) { return true; } #else /* not __x86_64__ */ uintptr_t kernel_addr_last; if (os_add_overflow((uintptr_t) kernel_addr, size, &kernel_addr_last)) { return true; } bool in_kva = (VM_KERNEL_STRIP_UPTR(kernel_addr) >= VM_MIN_KERNEL_ADDRESS) && (VM_KERNEL_STRIP_UPTR(kernel_addr_last) <= VM_MAX_KERNEL_ADDRESS); bool in_physmap = (VM_KERNEL_STRIP_UPTR(kernel_addr) >= physmap_base) && (VM_KERNEL_STRIP_UPTR(kernel_addr_last) <= physmap_end); if (!(in_kva || in_physmap)) { return true; } #endif /* not __x86_64__ */ return false; } static kern_return_t call_copyinmap(MAP_T map, vm_map_offset_t fromaddr, void * todata, vm_size_t length) { if (will_copyio_panic_in_copy_validate(todata, length)) { return PANIC; } kern_return_t kr = copyinmap(map, fromaddr, todata, length); return kr; } static kern_return_t call_copyoutmap(MAP_T map, void * fromdata, vm_map_offset_t toaddr, vm_size_t length) { if (will_copyio_panic_in_copy_validate(fromdata, length)) { return PANIC; } kern_return_t kr = copyoutmap(map, fromdata, toaddr, length); return kr; } static kern_return_t call_vm_map_read_user(MAP_T map, vm_map_address_t src_addr, void * ptr, vm_size_t size) { if (will_copyio_panic_in_copy_validate(ptr, size)) { return PANIC; } kern_return_t kr = vm_map_read_user(map, src_addr, ptr, size); return kr; } static kern_return_t call_vm_map_write_user(MAP_T map, void * ptr, vm_map_address_t dst_addr, vm_size_t size) { if (will_copyio_panic_in_copy_validate(ptr, size)) { return PANIC; } kern_return_t kr = vm_map_write_user(map, ptr, dst_addr, size); return kr; } static kern_return_t call_vm_map_copyout(MAP_T dst_map, vm_map_copy_t copy) { // save this value because `copy` is destroyed by vm_map_copyout_size() mach_vm_size_t copy_size = copy ? copy->size : 0; vm_map_address_t dst_addr; kern_return_t kr = vm_map_copyout(dst_map, &dst_addr, copy); if (kr == KERN_SUCCESS) { if (copy != NULL) { (void) mach_vm_deallocate(dst_map, dst_addr, copy_size); } } return kr; } static kern_return_t call_vm_map_copyout_size(MAP_T dst_map, vm_map_copy_t copy, mach_vm_size_t size) { // save this value because `copy` is destroyed by vm_map_copyout_size() mach_vm_size_t copy_size = copy ? copy->size : 0; vm_map_address_t dst_addr; kern_return_t kr = vm_map_copyout_size(dst_map, &dst_addr, copy, size); if (kr == KERN_SUCCESS) { if (copy != NULL) { (void) mach_vm_deallocate(dst_map, dst_addr, copy_size); } } return kr; } static kern_return_t call_vm_map_copy_overwrite_interruptible(MAP_T dst_map, vm_map_copy_t copy, mach_vm_address_t dst_addr, mach_vm_size_t copy_size) { kern_return_t kr = vm_map_copy_overwrite(dst_map, dst_addr, copy, copy_size, TRUE); return kr; } static kern_return_t call_vm_map_copy_overwrite_non_interruptible(MAP_T dst_map, vm_map_copy_t copy, mach_vm_address_t dst_addr, mach_vm_size_t copy_size) { kern_return_t kr = vm_map_copy_overwrite(dst_map, dst_addr, copy, copy_size, FALSE); return kr; } // Mach memory entry ownership extern kern_return_t mach_memory_entry_ownership( ipc_port_t entry_port, task_t owner, int ledger_tag, int ledger_flags); static kern_return_t call_mach_memory_entry_ownership__ledger_tag(MAP_T map __unused, int ledger_tag) { mach_port_t mementry = make_a_mem_entry(map, TEST_ALLOC_SIZE + 1); kern_return_t kr = mach_memory_entry_ownership(mementry, TASK_NULL, ledger_tag, 0); mach_memory_entry_port_release(mementry); return kr; } static kern_return_t call_mach_memory_entry_ownership__ledger_flag(MAP_T map __unused, int ledger_flag) { mach_port_t mementry = make_a_mem_entry(map, TEST_ALLOC_SIZE + 1); kern_return_t kr = mach_memory_entry_ownership(mementry, TASK_NULL, VM_LEDGER_TAG_DEFAULT, ledger_flag); mach_memory_entry_port_release(mementry); return kr; } static inline void check_mach_memory_entry_map_size_outparam_changes(kern_return_t * kr, mach_vm_size_t map_size, mach_vm_size_t invalid_initial_size) { if (*kr == KERN_SUCCESS) { if (map_size == invalid_initial_size) { *kr = OUT_PARAM_BAD; } } else { if (map_size != invalid_initial_size) { *kr = OUT_PARAM_BAD; } } } static kern_return_t call_mach_memory_entry_map_size__start_size(MAP_T map, mach_vm_address_t start, mach_vm_size_t size) { mach_port_t mementry; mach_vm_address_t addr; memory_object_size_t s = (memory_object_size_t)TEST_ALLOC_SIZE + 1; /* * INVALID_INITIAL_SIZE is guaranteed to never be the correct map_size * from the mach_memory_entry_map_size calls we make. map_size should represent the size of the * copy that would result, and INVALID_INITIAL_SIZE is completely unrelated to the sizes we pass * and not page aligned. */ mach_vm_size_t invalid_initial_size = INVALID_INITIAL_SIZE; mach_vm_size_t map_size = invalid_initial_size; kern_return_t kr = mach_vm_allocate_kernel(map, &addr, s, FLAGS_AND_TAG(VM_FLAGS_ANYWHERE, VM_KERN_MEMORY_OSFMK)); assert(kr == 0); kr = mach_make_memory_entry_64(map, &s, (memory_object_offset_t)addr, MAP_MEM_VM_SHARE, &mementry, MACH_PORT_NULL); assert(kr == 0); kr = mach_memory_entry_map_size(mementry, map, start, size, &map_size); check_mach_memory_entry_map_size_outparam_changes(&kr, map_size, invalid_initial_size); mach_memory_entry_port_release(mementry); (void)mach_vm_deallocate(map, addr, s); return kr; } static inline void check_mach_memory_entry_outparam_changes(kern_return_t * kr, mach_vm_size_t size, mach_port_t out_handle, mach_port_t saved_handle) { /* * mach_make_memory_entry overwrites *size to be 0 on failure. */ if (*kr != KERN_SUCCESS) { if (size != 0) { *kr = OUT_PARAM_BAD; } if (out_handle != saved_handle) { *kr = OUT_PARAM_BAD; } } } // mach_make_memory_entry and variants #define IMPL(FN, T) \ static kern_return_t \ call_ ## FN ## __start_size__memonly(MAP_T map, T start, T size) \ { \ mach_port_t memobject = make_a_mem_object(TEST_ALLOC_SIZE + 1); \ T io_size = size; \ mach_port_t invalid_handle_value = INVALID_INITIAL_MACH_PORT; \ mach_port_t out_handle = invalid_handle_value; \ kern_return_t kr = FN(map, &io_size, start, \ VM_PROT_READ | MAP_MEM_ONLY, &out_handle, memobject); \ if (kr == 0) { \ if (out_handle) mach_memory_entry_port_release(out_handle); \ } \ mach_memory_entry_port_release(memobject); \ check_mach_memory_entry_outparam_changes(&kr, io_size, out_handle,\ invalid_handle_value); \ return kr; \ } \ \ static kern_return_t \ call_ ## FN ## __start_size__namedcreate(MAP_T map, T start, T size) \ { \ mach_port_t memobject = make_a_mem_object(TEST_ALLOC_SIZE + 1); \ T io_size = size; \ mach_port_t invalid_handle_value = INVALID_INITIAL_MACH_PORT; \ mach_port_t out_handle = invalid_handle_value; \ kern_return_t kr = FN(map, &io_size, start, \ VM_PROT_READ | MAP_MEM_NAMED_CREATE, &out_handle, memobject); \ if (kr == 0) { \ if (out_handle) mach_memory_entry_port_release(out_handle); \ } \ mach_memory_entry_port_release(memobject); \ check_mach_memory_entry_outparam_changes(&kr, io_size, out_handle,\ invalid_handle_value); \ return kr; \ } \ \ static kern_return_t \ call_ ## FN ## __start_size__copy(MAP_T map, T start, T size) \ { \ mach_port_t memobject = make_a_mem_object(TEST_ALLOC_SIZE + 1); \ T io_size = size; \ mach_port_t invalid_handle_value = INVALID_INITIAL_MACH_PORT; \ mach_port_t out_handle = invalid_handle_value; \ kern_return_t kr = FN(map, &io_size, start, \ VM_PROT_READ | MAP_MEM_VM_COPY, &out_handle, memobject); \ if (kr == 0) { \ if (out_handle) mach_memory_entry_port_release(out_handle); \ } \ mach_memory_entry_port_release(memobject); \ check_mach_memory_entry_outparam_changes(&kr, io_size, out_handle,\ invalid_handle_value); \ return kr; \ } \ \ static kern_return_t \ call_ ## FN ## __start_size__share(MAP_T map, T start, T size) \ { \ mach_port_t memobject = make_a_mem_object(TEST_ALLOC_SIZE + 1); \ T io_size = size; \ mach_port_t invalid_handle_value = INVALID_INITIAL_MACH_PORT; \ mach_port_t out_handle = invalid_handle_value; \ kern_return_t kr = FN(map, &io_size, start, \ VM_PROT_READ | MAP_MEM_VM_SHARE, &out_handle, memobject); \ if (kr == 0) { \ if (out_handle) mach_memory_entry_port_release(out_handle); \ } \ mach_memory_entry_port_release(memobject); \ check_mach_memory_entry_outparam_changes(&kr, io_size, out_handle,\ invalid_handle_value); \ return kr; \ } \ \ static kern_return_t \ call_ ## FN ## __start_size__namedreuse(MAP_T map, T start, T size) \ { \ mach_port_t memobject = make_a_mem_object(TEST_ALLOC_SIZE + 1); \ T io_size = size; \ mach_port_t invalid_handle_value = INVALID_INITIAL_MACH_PORT; \ mach_port_t out_handle = invalid_handle_value; \ kern_return_t kr = FN(map, &io_size, start, \ VM_PROT_READ | MAP_MEM_NAMED_REUSE, &out_handle, memobject); \ if (kr == 0) { \ if (out_handle) mach_memory_entry_port_release(out_handle); \ } \ mach_memory_entry_port_release(memobject); \ check_mach_memory_entry_outparam_changes(&kr, io_size, out_handle,\ invalid_handle_value); \ return kr; \ } \ \ static kern_return_t \ call_ ## FN ## __vm_prot(MAP_T map, T start, T size, vm_prot_t prot) \ { \ mach_port_t memobject = make_a_mem_object(TEST_ALLOC_SIZE + 1); \ T io_size = size; \ mach_port_t invalid_handle_value = INVALID_INITIAL_MACH_PORT; \ mach_port_t out_handle = invalid_handle_value; \ kern_return_t kr = FN(map, &io_size, start, \ prot, &out_handle, memobject); \ if (kr == 0) { \ if (out_handle) mach_memory_entry_port_release(out_handle); \ } \ mach_memory_entry_port_release(memobject); \ check_mach_memory_entry_outparam_changes(&kr, io_size, out_handle,\ invalid_handle_value); \ return kr; \ } IMPL(mach_make_memory_entry_64, mach_vm_address_t) IMPL(mach_make_memory_entry, vm_size_t) static kern_return_t mach_make_memory_entry_internal_retyped( vm_map_t target_map, memory_object_size_t *size, memory_object_offset_t offset, vm_prot_t permission, ipc_port_t *object_handle, ipc_port_t parent_handle) { vm_named_entry_kernel_flags_t vmne_kflags = VM_NAMED_ENTRY_KERNEL_FLAGS_NONE; if (permission & MAP_MEM_LEDGER_TAGGED) { vmne_kflags.vmnekf_ledger_tag = VM_LEDGER_TAG_DEFAULT; } return mach_make_memory_entry_internal(target_map, size, offset, permission, vmne_kflags, object_handle, parent_handle); } IMPL(mach_make_memory_entry_internal_retyped, mach_vm_address_t) #undef IMPL // mach_vm_map/mach_vm_map_external/mach_vm_map_kernel/vm_map/vm_map_external infra typedef kern_return_t (*map_fn_t)(vm_map_t target_task, mach_vm_address_t *address, mach_vm_size_t size, mach_vm_offset_t mask, int flags, mem_entry_name_port_t object, memory_object_offset_t offset, boolean_t copy, vm_prot_t cur_protection, vm_prot_t max_protection, vm_inherit_t inheritance); static kern_return_t call_map_fn__allocate_fixed(map_fn_t fn, MAP_T map, mach_vm_address_t start, mach_vm_size_t size) { mach_vm_address_t out_addr = start; kern_return_t kr = fn(map, &out_addr, size, 0, VM_FLAGS_FIXED | VM_FLAGS_OVERWRITE, 0, 0, 0, 0, 0, VM_INHERIT_NONE); // fixed-overwrite with pre-existing allocation, don't deallocate return kr; } static kern_return_t call_map_fn__allocate_fixed_copy(map_fn_t fn, MAP_T map, mach_vm_address_t start, mach_vm_size_t size) { mach_vm_address_t out_addr = start; kern_return_t kr = fn(map, &out_addr, size, 0, VM_FLAGS_FIXED | VM_FLAGS_OVERWRITE, 0, 0, true, 0, 0, VM_INHERIT_NONE); // fixed-overwrite with pre-existing allocation, don't deallocate return kr; } static kern_return_t call_map_fn__allocate_anywhere(map_fn_t fn, MAP_T map, mach_vm_address_t start_hint, mach_vm_size_t size) { mach_vm_address_t out_addr = start_hint; kern_return_t kr = fn(map, &out_addr, size, 0, VM_FLAGS_ANYWHERE, 0, 0, 0, 0, 0, VM_INHERIT_NONE); if (kr == 0) { (void)mach_vm_deallocate(map, out_addr, size); } return kr; } static kern_return_t call_map_fn__memobject_fixed(map_fn_t fn, MAP_T map, mach_vm_address_t start, mach_vm_size_t size) { mach_port_t memobject = make_a_mem_object(TEST_ALLOC_SIZE + 1); mach_vm_address_t out_addr = start; kern_return_t kr = fn(map, &out_addr, size, 0, VM_FLAGS_FIXED | VM_FLAGS_OVERWRITE, memobject, KB16, false, VM_PROT_DEFAULT, VM_PROT_DEFAULT, VM_INHERIT_DEFAULT); // fixed-overwrite with pre-existing allocation, don't deallocate mach_memory_entry_port_release(memobject); return kr; } static kern_return_t call_map_fn__memobject_fixed_copy(map_fn_t fn, MAP_T map, mach_vm_address_t start, mach_vm_size_t size) { mach_port_t memobject = make_a_mem_object(TEST_ALLOC_SIZE + 1); mach_vm_address_t out_addr = start; kern_return_t kr = fn(map, &out_addr, size, 0, VM_FLAGS_FIXED | VM_FLAGS_OVERWRITE, memobject, KB16, true, VM_PROT_DEFAULT, VM_PROT_DEFAULT, VM_INHERIT_DEFAULT); // fixed-overwrite with pre-existing allocation, don't deallocate mach_memory_entry_port_release(memobject); return kr; } static kern_return_t call_map_fn__memobject_anywhere(map_fn_t fn, MAP_T map, mach_vm_address_t start_hint, mach_vm_size_t size) { mach_port_t memobject = make_a_mem_object(TEST_ALLOC_SIZE + 1); mach_vm_address_t out_addr = start_hint; kern_return_t kr = fn(map, &out_addr, size, 0, VM_FLAGS_ANYWHERE, memobject, KB16, false, VM_PROT_DEFAULT, VM_PROT_DEFAULT, VM_INHERIT_DEFAULT); if (kr == 0) { (void)mach_vm_deallocate(map, out_addr, size); } mach_memory_entry_port_release(memobject); return kr; } static kern_return_t helper_call_map_fn__memobject__ssoo(map_fn_t fn, MAP_T map, int flags, bool copy, mach_vm_address_t start, mach_vm_size_t size, vm_object_offset_t offset, mach_vm_size_t obj_size) { mach_port_t memobject = make_a_mem_object(obj_size); mach_vm_address_t out_addr = start; kern_return_t kr = fn(map, &out_addr, size, 0, flags, memobject, offset, copy, VM_PROT_DEFAULT, VM_PROT_DEFAULT, VM_INHERIT_DEFAULT); deallocate_if_not_fixed_overwrite(kr, map, out_addr, size, flags); mach_memory_entry_port_release(memobject); return kr; } static kern_return_t call_map_fn__memobject_fixed__start_size_offset_object(map_fn_t fn, MAP_T map, mach_vm_address_t start, mach_vm_size_t size, vm_object_offset_t offset, mach_vm_size_t obj_size) { return helper_call_map_fn__memobject__ssoo(fn, map, VM_FLAGS_FIXED | VM_FLAGS_OVERWRITE, false, start, size, offset, obj_size); } static kern_return_t call_map_fn__memobject_fixed_copy__start_size_offset_object(map_fn_t fn, MAP_T map, mach_vm_address_t start, mach_vm_size_t size, vm_object_offset_t offset, mach_vm_size_t obj_size) { return helper_call_map_fn__memobject__ssoo(fn, map, VM_FLAGS_FIXED | VM_FLAGS_OVERWRITE, true, start, size, offset, obj_size); } static kern_return_t call_map_fn__memobject_anywhere__start_size_offset_object(map_fn_t fn, MAP_T map, mach_vm_address_t start, mach_vm_size_t size, vm_object_offset_t offset, mach_vm_size_t obj_size) { return helper_call_map_fn__memobject__ssoo(fn, map, VM_FLAGS_ANYWHERE, false, start, size, offset, obj_size); } static kern_return_t help_call_map_fn__allocate__inherit(map_fn_t fn, MAP_T map, int flags, bool copy, mach_vm_address_t start, mach_vm_size_t size, vm_inherit_t inherit) { mach_vm_address_t out_addr = start; kern_return_t kr = fn(map, &out_addr, size, 0, flags, 0, KB16, copy, VM_PROT_DEFAULT, VM_PROT_DEFAULT, inherit); deallocate_if_not_fixed_overwrite(kr, map, out_addr, size, flags); return kr; } static kern_return_t call_map_fn__allocate_fixed__inherit(map_fn_t fn, MAP_T map, mach_vm_address_t start, mach_vm_size_t size, vm_inherit_t inherit) { return help_call_map_fn__allocate__inherit(fn, map, VM_FLAGS_FIXED | VM_FLAGS_OVERWRITE, false, start, size, inherit); } static kern_return_t call_map_fn__allocate_fixed_copy__inherit(map_fn_t fn, MAP_T map, mach_vm_address_t start, mach_vm_size_t size, vm_inherit_t inherit) { return help_call_map_fn__allocate__inherit(fn, map, VM_FLAGS_FIXED | VM_FLAGS_OVERWRITE, true, start, size, inherit); } static kern_return_t call_map_fn__allocate_anywhere__inherit(map_fn_t fn, MAP_T map, mach_vm_address_t start, mach_vm_size_t size, vm_inherit_t inherit) { return help_call_map_fn__allocate__inherit(fn, map, VM_FLAGS_ANYWHERE, false, start, size, inherit); } static kern_return_t help_call_map_fn__memobject__inherit(map_fn_t fn, MAP_T map, int flags, bool copy, mach_vm_address_t start, mach_vm_size_t size, vm_inherit_t inherit) { mach_port_t memobject = make_a_mem_object(TEST_ALLOC_SIZE + 1); mach_vm_address_t out_addr = start; kern_return_t kr = fn(map, &out_addr, size, 0, flags, memobject, KB16, copy, VM_PROT_DEFAULT, VM_PROT_DEFAULT, inherit); deallocate_if_not_fixed_overwrite(kr, map, out_addr, size, flags); mach_memory_entry_port_release(memobject); return kr; } static kern_return_t call_map_fn__memobject_fixed__inherit(map_fn_t fn, MAP_T map, mach_vm_address_t start, mach_vm_size_t size, vm_inherit_t inherit) { return help_call_map_fn__memobject__inherit(fn, map, VM_FLAGS_FIXED | VM_FLAGS_OVERWRITE, false, start, size, inherit); } static kern_return_t call_map_fn__memobject_fixed_copy__inherit(map_fn_t fn, MAP_T map, mach_vm_address_t start, mach_vm_size_t size, vm_inherit_t inherit) { return help_call_map_fn__memobject__inherit(fn, map, VM_FLAGS_FIXED | VM_FLAGS_OVERWRITE, true, start, size, inherit); } static kern_return_t call_map_fn__memobject_anywhere__inherit(map_fn_t fn, MAP_T map, mach_vm_address_t start, mach_vm_size_t size, vm_inherit_t inherit) { return help_call_map_fn__memobject__inherit(fn, map, VM_FLAGS_ANYWHERE, false, start, size, inherit); } static kern_return_t call_map_fn__allocate__flags(map_fn_t fn, MAP_T map, mach_vm_address_t * start, mach_vm_size_t size, int flags) { kern_return_t kr = fn(map, start, size, 0, flags, 0, KB16, false, VM_PROT_DEFAULT, VM_PROT_DEFAULT, VM_INHERIT_DEFAULT); deallocate_if_not_fixed_overwrite(kr, map, *start, size, flags); return kr; } static kern_return_t call_map_fn__allocate_copy__flags(map_fn_t fn, MAP_T map, mach_vm_address_t * start, mach_vm_size_t size, int flags) { kern_return_t kr = fn(map, start, size, 0, flags, 0, KB16, false, VM_PROT_DEFAULT, VM_PROT_DEFAULT, VM_INHERIT_DEFAULT); deallocate_if_not_fixed_overwrite(kr, map, *start, size, flags); return kr; } static kern_return_t call_map_fn__memobject__flags(map_fn_t fn, MAP_T map, mach_vm_address_t * start, mach_vm_size_t size, int flags) { mach_port_t memobject = make_a_mem_object(TEST_ALLOC_SIZE + 1); kern_return_t kr = fn(map, start, size, 0, flags, memobject, KB16, false, VM_PROT_DEFAULT, VM_PROT_DEFAULT, VM_INHERIT_DEFAULT); deallocate_if_not_fixed_overwrite(kr, map, *start, size, flags); mach_memory_entry_port_release(memobject); return kr; } static kern_return_t call_map_fn__memobject_copy__flags(map_fn_t fn, MAP_T map, mach_vm_address_t * start, mach_vm_size_t size, int flags) { mach_port_t memobject = make_a_mem_object(TEST_ALLOC_SIZE + 1); kern_return_t kr = fn(map, start, size, 0, flags, memobject, KB16, true, VM_PROT_DEFAULT, VM_PROT_DEFAULT, VM_INHERIT_DEFAULT); deallocate_if_not_fixed_overwrite(kr, map, *start, size, flags); mach_memory_entry_port_release(memobject); return kr; } static kern_return_t help_call_map_fn__allocate__prot_pairs(map_fn_t fn, MAP_T map, int flags, bool copy, vm_prot_t cur, vm_prot_t max) { mach_vm_address_t out_addr = 0; kern_return_t kr = fn(map, &out_addr, KB16, 0, flags, 0, KB16, copy, cur, max, VM_INHERIT_DEFAULT); deallocate_if_not_fixed_overwrite(kr, map, out_addr, KB16, flags); return kr; } static kern_return_t call_map_fn__allocate_fixed__prot_pairs(map_fn_t fn, MAP_T map, vm_prot_t cur, vm_prot_t max) { return help_call_map_fn__allocate__prot_pairs(fn, map, VM_FLAGS_FIXED | VM_FLAGS_OVERWRITE, false, cur, max); } static kern_return_t call_map_fn__allocate_fixed_copy__prot_pairs(map_fn_t fn, MAP_T map, vm_prot_t cur, vm_prot_t max) { return help_call_map_fn__allocate__prot_pairs(fn, map, VM_FLAGS_FIXED | VM_FLAGS_OVERWRITE, true, cur, max); } static kern_return_t call_map_fn__allocate_anywhere__prot_pairs(map_fn_t fn, MAP_T map, vm_prot_t cur, vm_prot_t max) { return help_call_map_fn__allocate__prot_pairs(fn, map, VM_FLAGS_ANYWHERE, false, cur, max); } static kern_return_t help_call_map_fn__memobject__prot_pairs(map_fn_t fn, MAP_T map, int flags, bool copy, vm_prot_t cur, vm_prot_t max) { mach_port_t memobject = make_a_mem_object(TEST_ALLOC_SIZE + 1); mach_vm_address_t out_addr = 0; kern_return_t kr = fn(map, &out_addr, KB16, 0, flags, memobject, KB16, copy, cur, max, VM_INHERIT_DEFAULT); deallocate_if_not_fixed_overwrite(kr, map, out_addr, KB16, flags); mach_memory_entry_port_release(memobject); return kr; } static kern_return_t call_map_fn__memobject_fixed__prot_pairs(map_fn_t fn, MAP_T map, vm_prot_t cur, vm_prot_t max) { return help_call_map_fn__memobject__prot_pairs(fn, map, VM_FLAGS_FIXED | VM_FLAGS_OVERWRITE, false, cur, max); } static kern_return_t call_map_fn__memobject_fixed_copy__prot_pairs(map_fn_t fn, MAP_T map, vm_prot_t cur, vm_prot_t max) { return help_call_map_fn__memobject__prot_pairs(fn, map, VM_FLAGS_FIXED | VM_FLAGS_OVERWRITE, true, cur, max); } static kern_return_t call_map_fn__memobject_anywhere__prot_pairs(map_fn_t fn, MAP_T map, vm_prot_t cur, vm_prot_t max) { return help_call_map_fn__memobject__prot_pairs(fn, map, VM_FLAGS_ANYWHERE, false, cur, max); } // wrappers static bool dealloc_would_panic(mach_vm_address_t start, mach_vm_size_t size) { return (start > 0xffffffffffffbffd) || (size > 0x8000000000); } kern_return_t mach_vm_map_wrapped(vm_map_t target_task, mach_vm_address_t *address, mach_vm_size_t size, mach_vm_offset_t mask, int flags, mem_entry_name_port_t object, memory_object_offset_t offset, boolean_t copy, vm_prot_t cur_protection, vm_prot_t max_protection, vm_inherit_t inheritance) { if (dealloc_would_panic(*address, size)) { return PANIC; } mach_vm_address_t saved_addr = *address; kern_return_t kr = mach_vm_map(target_task, address, size, mask, flags, object, offset, copy, cur_protection, max_protection, inheritance); check_mach_vm_map_outparam_changes(&kr, *address, saved_addr, flags, target_task); return kr; } // missing forward declaration kern_return_t mach_vm_map_external( vm_map_t target_map, mach_vm_offset_t *address, mach_vm_size_t initial_size, mach_vm_offset_t mask, int flags, ipc_port_t port, vm_object_offset_t offset, boolean_t copy, vm_prot_t cur_protection, vm_prot_t max_protection, vm_inherit_t inheritance); kern_return_t mach_vm_map_external_wrapped(vm_map_t target_task, mach_vm_address_t *address, mach_vm_size_t size, mach_vm_offset_t mask, int flags, mem_entry_name_port_t object, memory_object_offset_t offset, boolean_t copy, vm_prot_t cur_protection, vm_prot_t max_protection, vm_inherit_t inheritance) { if (dealloc_would_panic(*address, size)) { return PANIC; } mach_vm_address_t saved_addr = *address; kern_return_t kr = mach_vm_map_external(target_task, address, size, mask, flags, object, offset, copy, cur_protection, max_protection, inheritance); check_mach_vm_map_outparam_changes(&kr, *address, saved_addr, flags, target_task); return kr; } kern_return_t mach_vm_map_kernel_wrapped(vm_map_t target_task, mach_vm_address_t *address, mach_vm_size_t size, mach_vm_offset_t mask, int flags, mem_entry_name_port_t object, memory_object_offset_t offset, boolean_t copy, vm_prot_t cur_protection, vm_prot_t max_protection, vm_inherit_t inheritance) { if (dealloc_would_panic(*address, size)) { return PANIC; } vm_map_kernel_flags_t vmk_flags = VM_MAP_KERNEL_FLAGS_NONE; vm_map_kernel_flags_set_vmflags(&vmk_flags, flags); mach_vm_address_t saved_addr = *address; kern_return_t kr = mach_vm_map_kernel(target_task, address, size, mask, vmk_flags, object, offset, copy, cur_protection, max_protection, inheritance); check_mach_vm_map_outparam_changes(&kr, *address, saved_addr, flags, target_task); return kr; } struct file_control_return { void * control; void * fp; void * vp; int fd; }; static inline void check_vm_map_enter_mem_object_control_outparam_changes(kern_return_t * kr, mach_vm_address_t addr, mach_vm_address_t saved_start, int flags, MAP_T map) { if (*kr == KERN_SUCCESS) { if (is_fixed(flags)) { if (addr != truncate_vm_map_addr_with_flags(map, saved_start, flags)) { *kr = OUT_PARAM_BAD; } } } else { if (saved_start != addr) { *kr = OUT_PARAM_BAD; } } } struct file_control_return get_control_from_fd(int fd); void cleanup_control_related_data(struct file_control_return info); kern_return_t vm_map_enter_mem_object_control_wrapped( vm_map_t target_map, mach_vm_address_t *address, mach_vm_size_t size, vm_map_offset_t mask, int flags, mem_entry_name_port_t object __unused, memory_object_offset_t offset, boolean_t copy, vm_prot_t cur_protection, vm_prot_t max_protection, vm_inherit_t inheritance) { mach_vm_address_t start = vm_map_trunc_page(*address, VM_MAP_PAGE_MASK(target_map)); mach_vm_address_t end = round_up_page(*address + size, PAGE_SIZE); mach_vm_address_t end_offset; if (__builtin_add_overflow(end - start, offset, &end_offset)) { return PANIC; } vm_map_offset_t vmmaddr; vmmaddr = (vm_map_offset_t) *address; if (dealloc_would_panic(*address, size)) { return PANIC; } vm_map_kernel_flags_t vmk_flags = VM_MAP_KERNEL_FLAGS_NONE; vm_map_kernel_flags_set_vmflags(&vmk_flags, flags); struct file_control_return control_info = get_control_from_fd(file_descriptor); kern_return_t kr = vm_map_enter_mem_object_control(target_map, &vmmaddr, size, mask, vmk_flags, (memory_object_control_t) control_info.control, offset, copy, cur_protection, max_protection, inheritance); check_vm_map_enter_mem_object_control_outparam_changes(&kr, vmmaddr, *address, flags, target_map); *address = vmmaddr; cleanup_control_related_data(control_info); return kr; } kern_return_t vm_map_wrapped(vm_map_t target_task, mach_vm_address_t *address, mach_vm_size_t size, mach_vm_offset_t mask, int flags, mem_entry_name_port_t object, memory_object_offset_t offset, boolean_t copy, vm_prot_t cur_protection, vm_prot_t max_protection, vm_inherit_t inheritance) { if (dealloc_would_panic(*address, size)) { return PANIC; } vm_address_t addr = (vm_address_t)*address; kern_return_t kr = vm_map(target_task, &addr, size, mask, flags, object, offset, copy, cur_protection, max_protection, inheritance); check_mach_vm_map_outparam_changes(&kr, addr, (vm_address_t)*address, flags, target_task); *address = addr; return kr; } kern_return_t vm_map_external( vm_map_t target_map, vm_offset_t *address, vm_size_t size, vm_offset_t mask, int flags, ipc_port_t port, vm_offset_t offset, boolean_t copy, vm_prot_t cur_protection, vm_prot_t max_protection, vm_inherit_t inheritance); kern_return_t vm_map_external_wrapped(vm_map_t target_task, mach_vm_address_t *address, mach_vm_size_t size, mach_vm_offset_t mask, int flags, mem_entry_name_port_t object, memory_object_offset_t offset, boolean_t copy, vm_prot_t cur_protection, vm_prot_t max_protection, vm_inherit_t inheritance) { if (dealloc_would_panic(*address, size)) { return PANIC; } vm_address_t addr = (vm_address_t)*address; kern_return_t kr = vm_map_external(target_task, &addr, size, mask, flags, object, offset, copy, cur_protection, max_protection, inheritance); check_mach_vm_map_outparam_changes(&kr, addr, (vm_address_t)*address, flags, target_task); *address = addr; return kr; } // implementations #define IMPL_MAP_FN_START_SIZE(map_fn, instance) \ static kern_return_t \ call_ ## map_fn ## __ ## instance (MAP_T map, mach_vm_address_t start, mach_vm_size_t size) \ { \ return call_map_fn__ ## instance(map_fn, map, start, size); \ } #define IMPL_MAP_FN_HINT_SIZE(map_fn, instance) \ static kern_return_t \ call_ ## map_fn ## __ ## instance (MAP_T map, mach_vm_address_t start_hint, mach_vm_size_t size) \ { \ return call_map_fn__ ## instance(map_fn, map, start_hint, size); \ } #define IMPL_MAP_FN_START_SIZE_OFFSET_OBJECT(map_fn, instance) \ static kern_return_t \ call_ ## map_fn ## __ ## instance ## __start_size_offset_object(MAP_T map, mach_vm_address_t start, mach_vm_size_t size, vm_object_offset_t offset, mach_vm_size_t obj_size) \ { \ return call_map_fn__ ## instance ## __start_size_offset_object(map_fn, map, start, size, offset, obj_size); \ } #define IMPL_MAP_FN_START_SIZE_INHERIT(map_fn, instance) \ static kern_return_t \ call_ ## map_fn ## __ ## instance ## __inherit(MAP_T map, mach_vm_address_t start, mach_vm_size_t size, vm_inherit_t inherit) \ { \ return call_map_fn__ ## instance ## __inherit(map_fn, map, start, size, inherit); \ } #define IMPL_MAP_FN_START_SIZE_FLAGS(map_fn, instance) \ static kern_return_t \ call_ ## map_fn ## __ ## instance ## __flags(MAP_T map, mach_vm_address_t * start, mach_vm_size_t size, int flags) \ { \ return call_map_fn__ ## instance ## __flags(map_fn, map, start, size, flags); \ } #define IMPL_MAP_FN_PROT_PAIRS(map_fn, instance) \ static kern_return_t \ call_ ## map_fn ## __ ## instance ## __prot_pairs(MAP_T map, vm_prot_t cur, vm_prot_t max) \ { \ return call_map_fn__ ## instance ## __prot_pairs(map_fn, map, cur, max); \ } #define IMPL(map_fn) \ IMPL_MAP_FN_START_SIZE(map_fn, allocate_fixed) \ IMPL_MAP_FN_START_SIZE(map_fn, allocate_fixed_copy) \ IMPL_MAP_FN_START_SIZE(map_fn, memobject_fixed) \ IMPL_MAP_FN_START_SIZE(map_fn, memobject_fixed_copy) \ IMPL_MAP_FN_HINT_SIZE(map_fn, allocate_anywhere) \ IMPL_MAP_FN_HINT_SIZE(map_fn, memobject_anywhere) \ IMPL_MAP_FN_START_SIZE_OFFSET_OBJECT(map_fn, memobject_fixed) \ IMPL_MAP_FN_START_SIZE_OFFSET_OBJECT(map_fn, memobject_fixed_copy) \ IMPL_MAP_FN_START_SIZE_OFFSET_OBJECT(map_fn, memobject_anywhere) \ IMPL_MAP_FN_START_SIZE_INHERIT(map_fn, allocate_fixed) \ IMPL_MAP_FN_START_SIZE_INHERIT(map_fn, allocate_fixed_copy) \ IMPL_MAP_FN_START_SIZE_INHERIT(map_fn, allocate_anywhere) \ IMPL_MAP_FN_START_SIZE_INHERIT(map_fn, memobject_fixed) \ IMPL_MAP_FN_START_SIZE_INHERIT(map_fn, memobject_fixed_copy) \ IMPL_MAP_FN_START_SIZE_INHERIT(map_fn, memobject_anywhere) \ IMPL_MAP_FN_START_SIZE_FLAGS(map_fn, allocate) \ IMPL_MAP_FN_START_SIZE_FLAGS(map_fn, allocate_copy) \ IMPL_MAP_FN_START_SIZE_FLAGS(map_fn, memobject) \ IMPL_MAP_FN_START_SIZE_FLAGS(map_fn, memobject_copy) \ IMPL_MAP_FN_PROT_PAIRS(map_fn, allocate_fixed) \ IMPL_MAP_FN_PROT_PAIRS(map_fn, allocate_fixed_copy) \ IMPL_MAP_FN_PROT_PAIRS(map_fn, allocate_anywhere) \ IMPL_MAP_FN_PROT_PAIRS(map_fn, memobject_fixed) \ IMPL_MAP_FN_PROT_PAIRS(map_fn, memobject_fixed_copy) \ IMPL_MAP_FN_PROT_PAIRS(map_fn, memobject_anywhere) \ IMPL(mach_vm_map_wrapped) IMPL(mach_vm_map_external_wrapped) IMPL(mach_vm_map_kernel_wrapped) IMPL(vm_map_wrapped) IMPL(vm_map_external_wrapped) IMPL(vm_map_enter_mem_object_control_wrapped) #undef IMPL static int vm_parameter_validation_kern_test(int64_t in_value, int64_t *out_value) { // in_value has the userspace address of the fixed-size output buffer and a file descriptor. // The address is KB16 aligned, so the bottom bits are used for the fd. // fd bit 15 also indicates if we want to generate golden results. // in_value is KB16 aligned uint64_t fd_mask = KB16 - 1; file_descriptor = (int)(((uint64_t) in_value) & fd_mask); uint64_t buffer_address = in_value - file_descriptor; SYSCTL_OUTPUT_BUF = buffer_address; SYSCTL_OUTPUT_END = SYSCTL_OUTPUT_BUF + SYSCTL_OUTPUT_BUFFER_SIZE; // check if running to generate golden result list via boot-arg kernel_generate_golden = (file_descriptor & (KB16 >> 1)) > 0; if (kernel_generate_golden) { file_descriptor &= ~(KB16 >> 1); } else { init_kernel_generate_golden(); } /* * Group 1: memory entry */ #define RUN_START_SIZE(fn, variant, name) dealloc_results(dump_results(test_mach_with_allocated_start_size(call_ ## fn ## __start_size__ ## variant, name " (start/size)"))) #define RUN_PROT(fn, name) dealloc_results(dump_results(test_mach_with_allocated_vm_prot_t(call_ ## fn ## __vm_prot , name " (vm_prot_t)"))) #define RUN_ALL(fn, name) \ RUN_START_SIZE(fn, copy, #name " (copy)"); \ RUN_START_SIZE(fn, memonly, #name " (memonly)"); \ RUN_START_SIZE(fn, namedcreate, #name " (namedcreate)"); \ RUN_START_SIZE(fn, share, #name " (share)"); \ RUN_START_SIZE(fn, namedreuse, #name " (namedreuse)"); \ RUN_PROT(fn, #name " (vm_prot_t)"); \ RUN_ALL(mach_make_memory_entry_64, mach_make_memory_entry_64); RUN_ALL(mach_make_memory_entry, mach_make_memory_entry); RUN_ALL(mach_make_memory_entry_internal_retyped, mach_make_memory_entry_internal); #undef RUN_ALL #undef RUN_START_SIZE #undef RUN_PROT #define RUN(fn, name) dealloc_results(dump_results(test_mach_with_ledger_tag(fn, name " (ledger tag)"))) RUN(call_mach_memory_entry_ownership__ledger_tag, "mach_memory_entry_ownership"); #undef RUN #define RUN(fn, name) dealloc_results(dump_results(test_mach_with_ledger_flag(fn, name " (ledger flag)"))) RUN(call_mach_memory_entry_ownership__ledger_flag, "mach_memory_entry_ownership"); #undef RUN #define RUN(fn, name) dealloc_results(dump_results(test_mach_with_allocated_start_size(fn, name " (start/size)"))) RUN(call_mach_memory_entry_map_size__start_size, "mach_memory_entry_map_size"); #undef RUN /* * Group 2: allocate/deallocate */ #define RUN(fn, name) dealloc_results(dump_results(test_mach_allocation_func_with_start_size(fn, name))) RUN(call_mach_vm_allocate__start_size_fixed, "mach_vm_allocate_external (fixed) (realigned start/size)"); RUN(call_mach_vm_allocate__start_size_anywhere, "mach_vm_allocate_external (anywhere) (hint/size)"); RUN(call_mach_vm_allocate_kernel__start_size_fixed, "mach_vm_allocate (fixed) (realigned start/size)"); RUN(call_mach_vm_allocate_kernel__start_size_anywhere, "mach_vm_allocate (anywhere) (hint/size)"); #undef RUN #define RUN(fn, name) dealloc_results(dump_results(test_mach_allocation_func_with_vm_map_kernel_flags_t(fn, name " (vm_map_kernel_flags_t)"))) RUN(call_mach_vm_allocate__flags, "mach_vm_allocate_external"); RUN(call_mach_vm_allocate_kernel__flags, "mach_vm_allocate_kernel"); #undef RUN #define RUN(fn, name) dealloc_results(dump_results(test_mach_allocation_func_with_start_size(fn, name))) RUN(call_vm_allocate__start_size_fixed, "vm_allocate (fixed) (realigned start/size)"); RUN(call_vm_allocate__start_size_anywhere, "vm_allocate (anywhere) (hint/size)"); #undef RUN #define RUN(fn, name) dealloc_results(dump_results(test_mach_allocation_func_with_vm_map_kernel_flags_t(fn, name " (vm_map_kernel_flags_t)"))) RUN(call_vm_allocate__flags, "vm_allocate"); #undef RUN dealloc_results(dump_results(test_deallocator(call_mach_vm_deallocate, "mach_vm_deallocate (start/size)"))); dealloc_results(dump_results(test_deallocator(call_vm_deallocate, "vm_deallocate (start/size)"))); /* * Group 3: map/remap */ // map tests #define RUN_START_SIZE(fn, name) dealloc_results(dump_results(test_mach_with_allocated_start_size(fn, name " (realigned start/size)"))) #define RUN_HINT_SIZE(fn, name) dealloc_results(dump_results(test_mach_with_allocated_start_size(fn, name " (hint/size)"))) #define RUN_PROT_PAIR(fn, name) dealloc_results(dump_results(test_mach_vm_prot_pair(fn, name " (vm_prot_t pair)"))) #define RUN_INHERIT(fn, name) dealloc_results(dump_results(test_mach_with_allocated_vm_inherit_t(fn, name " (vm_inherit_t)"))) #define RUN_FLAGS(fn, name) dealloc_results(dump_results(test_mach_allocation_func_with_vm_map_kernel_flags_t(fn, name " (vm_map_kernel_flags_t)"))) #define RUN_SSOO(fn, name) dealloc_results(dump_results(test_mach_with_start_size_offset_object(fn, name " (start/size/offset/object)"))) #define RUN_ALL(fn, name) \ RUN_START_SIZE(call_ ## fn ## __allocate_fixed, #name " (allocate fixed overwrite)"); \ RUN_START_SIZE(call_ ## fn ## __allocate_fixed_copy, #name " (allocate fixed overwrite copy)"); \ RUN_START_SIZE(call_ ## fn ## __memobject_fixed, #name " (memobject fixed overwrite)"); \ RUN_START_SIZE(call_ ## fn ## __memobject_fixed_copy, #name " (memobject fixed overwrite copy)"); \ RUN_HINT_SIZE(call_ ## fn ## __allocate_anywhere, #name " (allocate anywhere)"); \ RUN_HINT_SIZE(call_ ## fn ## __memobject_anywhere, #name " (memobject anywhere)"); \ RUN_PROT_PAIR(call_ ## fn ## __allocate_fixed__prot_pairs, #name " (allocate fixed overwrite)"); \ RUN_PROT_PAIR(call_ ## fn ## __allocate_fixed_copy__prot_pairs, #name " (allocate fixed overwrite copy)"); \ RUN_PROT_PAIR(call_ ## fn ## __allocate_anywhere__prot_pairs, #name " (allocate anywhere)"); \ RUN_PROT_PAIR(call_ ## fn ## __memobject_fixed__prot_pairs, #name " (memobject fixed overwrite)"); \ RUN_PROT_PAIR(call_ ## fn ## __memobject_fixed_copy__prot_pairs, #name " (memobject fixed overwrite copy)"); \ RUN_PROT_PAIR(call_ ## fn ## __memobject_anywhere__prot_pairs, #name " (memobject anywhere)"); \ RUN_INHERIT(call_ ## fn ## __allocate_fixed__inherit, #name " (allocate fixed overwrite)"); \ RUN_INHERIT(call_ ## fn ## __allocate_fixed_copy__inherit, #name " (allocate fixed overwrite copy)"); \ RUN_INHERIT(call_ ## fn ## __allocate_anywhere__inherit, #name " (allocate anywhere)"); \ RUN_INHERIT(call_ ## fn ## __memobject_fixed__inherit, #name " (memobject fixed overwrite)"); \ RUN_INHERIT(call_ ## fn ## __memobject_fixed_copy__inherit, #name " (memobject fixed overwrite copy)"); \ RUN_INHERIT(call_ ## fn ## __memobject_anywhere__inherit, #name " (memobject anywhere)"); \ RUN_FLAGS(call_ ## fn ## __allocate__flags, #name " (allocate)"); \ RUN_FLAGS(call_ ## fn ## __allocate_copy__flags, #name " (allocate copy)"); \ RUN_FLAGS(call_ ## fn ## __memobject__flags, #name " (memobject)"); \ RUN_FLAGS(call_ ## fn ## __memobject_copy__flags, #name " (memobject copy)"); \ RUN_SSOO(call_ ## fn ## __memobject_fixed__start_size_offset_object, #name " (memobject fixed overwrite)"); \ RUN_SSOO(call_ ## fn ## __memobject_fixed_copy__start_size_offset_object, #name " (memobject fixed overwrite copy)"); \ RUN_SSOO(call_ ## fn ## __memobject_anywhere__start_size_offset_object, #name " (memobject anywhere)"); \ RUN_ALL(mach_vm_map_wrapped, mach_vm_map); RUN_ALL(mach_vm_map_external_wrapped, mach_vm_map_external); RUN_ALL(mach_vm_map_kernel_wrapped, mach_vm_map_kernel); RUN_ALL(vm_map_wrapped, vm_map); RUN_ALL(vm_map_external_wrapped, vm_map_external); #define RUN_SSO(fn, name) dealloc_results(dump_results(test_mach_with_start_size_offset(fn, name " (start/size/offset)"))) #define RUN_ALL_CTL(fn, name) \ RUN_START_SIZE(call_ ## fn ## __allocate_fixed, #name " (allocate fixed overwrite)"); \ RUN_START_SIZE(call_ ## fn ## __allocate_fixed_copy, #name " (allocate fixed overwrite copy)"); \ RUN_START_SIZE(call_ ## fn ## __memobject_fixed, #name " (memobject fixed overwrite)"); \ RUN_START_SIZE(call_ ## fn ## __memobject_fixed_copy, #name " (memobject fixed overwrite copy)"); \ RUN_HINT_SIZE(call_ ## fn ## __allocate_anywhere, #name " (allocate anywhere)"); \ RUN_HINT_SIZE(call_ ## fn ## __memobject_anywhere, #name " (memobject anywhere)"); \ RUN_PROT_PAIR(call_ ## fn ## __allocate_fixed__prot_pairs, #name " (allocate fixed overwrite)"); \ RUN_PROT_PAIR(call_ ## fn ## __allocate_fixed_copy__prot_pairs, #name " (allocate fixed overwrite copy)"); \ RUN_PROT_PAIR(call_ ## fn ## __allocate_anywhere__prot_pairs, #name " (allocate anywhere)"); \ RUN_PROT_PAIR(call_ ## fn ## __memobject_fixed__prot_pairs, #name " (memobject fixed overwrite)"); \ RUN_PROT_PAIR(call_ ## fn ## __memobject_fixed_copy__prot_pairs, #name " (memobject fixed overwrite copy)"); \ RUN_PROT_PAIR(call_ ## fn ## __memobject_anywhere__prot_pairs, #name " (memobject anywhere)"); \ RUN_INHERIT(call_ ## fn ## __allocate_fixed__inherit, #name " (allocate fixed overwrite)"); \ RUN_INHERIT(call_ ## fn ## __allocate_fixed_copy__inherit, #name " (allocate fixed overwrite copy)"); \ RUN_INHERIT(call_ ## fn ## __allocate_anywhere__inherit, #name " (allocate anywhere)"); \ RUN_INHERIT(call_ ## fn ## __memobject_fixed__inherit, #name " (memobject fixed overwrite)"); \ RUN_INHERIT(call_ ## fn ## __memobject_fixed_copy__inherit, #name " (memobject fixed overwrite copy)"); \ RUN_INHERIT(call_ ## fn ## __memobject_anywhere__inherit, #name " (memobject anywhere)"); \ RUN_FLAGS(call_ ## fn ## __allocate__flags, #name " (allocate)"); \ RUN_FLAGS(call_ ## fn ## __allocate_copy__flags, #name " (allocate copy)"); \ RUN_FLAGS(call_ ## fn ## __memobject__flags, #name " (memobject)"); \ RUN_FLAGS(call_ ## fn ## __memobject_copy__flags, #name " (memobject copy)"); \ RUN_SSO(call_ ## fn ## __memobject_fixed__start_size_offset_object, #name " (memobject fixed overwrite)"); \ RUN_SSO(call_ ## fn ## __memobject_fixed_copy__start_size_offset_object, #name " (memobject fixed overwrite copy)"); \ RUN_SSO(call_ ## fn ## __memobject_anywhere__start_size_offset_object, #name " (memobject anywhere)"); \ RUN_ALL_CTL(vm_map_enter_mem_object_control_wrapped, vm_map_enter_mem_object_control); #undef RUN_ALL #undef RUN_START_SIZE #undef RUN_HINT_SIZE #undef RUN_PROT_PAIR #undef RUN_INHERIT #undef RUN_FLAGS #undef RUN_SSOO #undef RUN_ALL_CTL #undef RUN_SSO // remap tests #define FN_NAME(fn, variant, type) call_ ## fn ## __ ## variant ## __ ## type #define RUN_HELPER(harness, fn, variant, type, type_name, name) dealloc_results(dump_results(harness(FN_NAME(fn, variant, type), #name " (" #variant ") (" type_name ")"))) #define RUN_SRC_SIZE(fn, variant, type_name, name) RUN_HELPER(test_mach_with_allocated_start_size, fn, variant, src_size, type_name, name) #define RUN_DST_SIZE(fn, variant, type_name, name) RUN_HELPER(test_mach_with_allocated_start_size, fn, variant, dst_size, type_name, name) #define RUN_PROT_PAIRS(fn, variant, name) RUN_HELPER(test_mach_with_allocated_vm_prot_pair, fn, variant, prot_pairs, "prot_pairs", name) #define RUN_INHERIT(fn, variant, name) RUN_HELPER(test_mach_with_allocated_vm_inherit_t, fn, variant, inherit, "inherit", name) #define RUN_FLAGS(fn, variant, name) RUN_HELPER(test_mach_with_allocated_vm_map_kernel_flags_t, fn, variant, flags, "flags", name) #define RUN_SRC_DST_SIZE(fn, variant, type_name, name) RUN_HELPER(test_allocated_src_unallocated_dst_size, fn, variant, src_dst_size, type_name, name) #define RUN_ALL(fn, realigned, name) \ RUN_SRC_SIZE(fn, copy, realigned "src/size", name); \ RUN_SRC_SIZE(fn, nocopy, realigned "src/size", name); \ RUN_DST_SIZE(fn, fixed, "realigned dst/size", name); \ RUN_DST_SIZE(fn, fixed_copy, "realigned dst/size", name); \ RUN_DST_SIZE(fn, anywhere, "hint/size", name); \ RUN_INHERIT(fn, fixed, name); \ RUN_INHERIT(fn, fixed_copy, name); \ RUN_INHERIT(fn, anywhere, name); \ RUN_FLAGS(fn, nocopy, name); \ RUN_FLAGS(fn, copy, name); \ RUN_PROT_PAIRS(fn, fixed, name); \ RUN_PROT_PAIRS(fn, fixed_copy, name); \ RUN_PROT_PAIRS(fn, anywhere, name); \ RUN_SRC_DST_SIZE(fn, fixed, "src/dst/size", name); \ RUN_SRC_DST_SIZE(fn, fixed_copy, "src/dst/size", name); \ RUN_SRC_DST_SIZE(fn, anywhere, "src/dst/size", name); \ RUN_ALL(mach_vm_remap_wrapped_kern, "realigned ", mach_vm_remap); RUN_ALL(mach_vm_remap_new_kernel_wrapped, , mach_vm_remap_new_kernel); #undef RUN_ALL #undef RUN_HELPER #undef RUN_SRC_SIZE #undef RUN_DST_SIZE #undef RUN_PROT_PAIRS #undef RUN_INHERIT #undef RUN_FLAGS #undef RUN_SRC_DST_SIZE /* * Group 4: wire/unwire */ #define RUN(fn, name) dealloc_results(dump_results(test_kext_unix_with_allocated_start_size(fn, name " (start/size)"))) RUN(call_vslock, "vslock"); RUN(call_vsunlock_undirtied, "vsunlock (undirtied)"); RUN(call_vsunlock_dirtied, "vsunlock (dirtied)"); #undef RUN #if XNU_PLATFORM_MacOSX // vm_map_wire_and_extract is implemented on macOS only #define RUN(fn, name) dealloc_results(dump_results(test_kext_tagged_with_allocated_addr(fn, name " (addr)"))) RUN(call_vm_map_wire_and_extract_user_wired, "vm_map_wire_and_extract (user wired)"); RUN(call_vm_map_wire_and_extract_non_user_wired, "vm_map_wire_and_extract (user wired)"); #undef RUN #define RUN(fn, name) dealloc_results(dump_results(test_mach_with_allocated_vm_prot_t(fn, name " (vm_prot_t)"))) RUN(call_vm_map_wire_and_extract_vm_prot_t_user_wired, "vm_map_wire_and_extract_external (user wired)"); RUN(call_vm_map_wire_and_extract_vm_prot_t_non_user_wired, "vm_map_wire_and_extract_external (non user wired)"); #undef RUN #endif // XNU_PLATFORM_MacOSX #define RUN(fn, name) dealloc_results(dump_results(test_mach_with_allocated_vm_prot_t(fn, name " (vm_prot_t)"))) RUN(call_vm_map_wire_external_vm_prot_t_user_wired, "vm_map_wire_external (user wired)"); RUN(call_vm_map_wire_external_vm_prot_t_non_user_wired, "vm_map_wire_external (non user wired))"); RUN(call_vm_map_wire_kernel_vm_prot_t_user_wired, "vm_map_wire_kernel (user wired)"); RUN(call_vm_map_wire_kernel_vm_prot_t_non_user_wired, "vm_map_wire_kernel (non user wired))"); #undef RUN #define RUN(fn, name) dealloc_results(dump_results(test_with_start_end(fn, name " (start/end)"))) RUN(call_vm_map_wire_external_user_wired, "vm_map_wire_external (user wired)"); RUN(call_vm_map_wire_external_non_user_wired, "vm_map_wire_external (non user wired)"); RUN(call_vm_map_wire_kernel_user_wired, "vm_map_wire_kernel (user wired)"); RUN(call_vm_map_wire_kernel_non_user_wired, "vm_map_wire_kernel (non user wired)"); RUN(call_vm_map_unwire_user_wired, "vm_map_unwire (user_wired)"); RUN(call_vm_map_unwire_non_user_wired, "vm_map_unwire (non user_wired)"); #undef RUN #define RUN(fn, name) dealloc_results(dump_results(test_with_tag(fn, name " (tag)"))) RUN(call_vm_map_kernel_tag_user_wired, "vm_map_wire_kernel (user wired)"); RUN(call_vm_map_kernel_tag_non_user_wired, "vm_map_wire_kernel (non user wired)"); #undef RUN #define RUN(fn, name) dealloc_results(dump_results(test_with_int64(fn, name " (int64)"))) RUN(call_mach_vm_wire_level_monitor, "mach_vm_wire_level_monitor"); #undef RUN /* * Group 5: copyin/copyout */ #define RUN(fn, name) dealloc_results(dump_results(test_mach_with_allocated_start_size(fn, name " (start/size)"))) RUN(call_vm_map_copyin, "vm_map_copyin"); // vm_map_copyin_common is covered well by the vm_map_copyin test // RUN(call_vm_map_copyin_common, "vm_map_copyin_common"); #undef RUN #define RUN(fn, name) dealloc_results(dump_results(test_mach_with_allocated_addr_of_size_n(fn, sizeof(uint32_t), name " (start)"))) RUN(call_copyoutmap_atomic32, "copyoutmap_atomic32"); #undef RUN #define RUN(fn, name) dealloc_results(dump_results(test_src_kerneldst_size(fn, name " (src/dst/size)"))) RUN(call_copyinmap, "copyinmap"); RUN(call_vm_map_read_user, "vm_map_read_user"); #undef RUN #define RUN(fn, name) dealloc_results(dump_results(test_kernelsrc_dst_size(fn, name " (src/dst/size)"))) RUN(call_vm_map_write_user, "vm_map_write_user"); RUN(call_copyoutmap, "copyoutmap"); #undef RUN dealloc_results(dump_results(test_vm_map_copy_overwrite(call_vm_map_copy_overwrite_interruptible, "vm_map_copy_overwrite (start/size)"))); SYSCTL_OUTPUT_BUF = 0; SYSCTL_OUTPUT_END = 0; *out_value = 1; // success return 0; } SYSCTL_TEST_REGISTER(vm_parameter_validation_kern, vm_parameter_validation_kern_test);