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3822 3823 3824 3825 3826 3827 3828 3829 3830 3831 3832 3833 3834 3835 3836 3837 3838 3839 3840 3841 3842 3843 3844 3845 3846 3847 3848 3849 3850 3851 3852 3853 3854 3855 3856 3857 3858 3859 3860 3861 3862 3863 3864 3865 3866 3867 3868 3869 3870 3871 3872 3873 3874 3875 3876 3877 3878 3879 3880 3881 3882 3883 3884 3885 3886 3887 3888 3889 3890 3891 3892 3893 3894 3895 3896 3897 3898 3899 3900 3901 3902 3903 3904 3905 3906 3907 3908 3909 | #include <darwintest.h> #include <darwintest_utils.h> #include <test_utils.h> #include <sys/types.h> #include <sys/sysctl.h> #include <mach/mach.h> #include <mach/mach_vm.h> #include <mach/memory_entry.h> #include <mach/shared_region.h> #include <mach/vm_reclaim.h> #include <mach/vm_types.h> #include <sys/mman.h> #include <unistd.h> #include <TargetConditionals.h> #include <mach-o/dyld.h> #include <libgen.h> #include <os/bsd.h> // For os_parse_boot_arg_int // workarounds for buggy MIG declarations // see tests/vm/vm_parameter_validation_replacement_*.defs // and tests/Makefile for details #include "vm_parameter_validation_replacement_mach_host.h" #include "vm_parameter_validation_replacement_host_priv.h" // code shared with kernel/kext tests #include "../../osfmk/tests/vm_parameter_validation.h" #define GOLDEN_FILES_VERSION "vm_parameter_validation_golden_images_a2474e92.tar.xz" #define GOLDEN_FILES_ASSET_FILE_POINTER GOLDEN_FILES_VERSION /* * Architecture to pass to the golden file decompressor. * watchOS passes 'arm64' or 'arm64_32'. * Decompressor ignores this parameter on other platforms. */ #if TARGET_OS_WATCH # if TARGET_CPU_ARM64 # if TARGET_RT_64_BIT # define GOLDEN_FILES_ARCH "arm64" # else # define GOLDEN_FILES_ARCH "arm64_32" # endif # else # error unknown watchOS architecture # endif #else # define GOLDEN_FILES_ARCH "unspecified" #endif T_GLOBAL_META( T_META_NAMESPACE("xnu.vm"), T_META_RADAR_COMPONENT_NAME("xnu"), T_META_RADAR_COMPONENT_VERSION("VM"), T_META_S3_ASSET(GOLDEN_FILES_ASSET_FILE_POINTER), T_META_ASROOT(true), /* required for vm_wire tests on macOS */ T_META_RUN_CONCURRENTLY(false), /* tests should be concurrency-safe now, but keep this in case concurrent tests would provoke timeouts */ T_META_ALL_VALID_ARCHS(true), XNU_T_META_REQUIRES_DEVELOPMENT_KERNEL ); /* * vm_parameter_validation.c * Test parameter validation of vm's userspace API * * The test compares the return values against a 'golden' list, which is a text * file previously generated and compressed in .xz files, per platform. * When vm_parameter_validation runs, it calls assets/vm_parameter_validation/decompress.sh, * which detects the platform and decompresses the corresponding user and kern * golden files. * * Any return code mismatch is reported as a failure, printing test name and iteration. * New tests not present in the 'golden' list will run but they are also reported as a failure. * * There are two environment variable flags that makes development work easier and * can temporarily disable golden list testing. * * SKIP_TESTS * When running with SKIP_TESTS set, the test will not compare the results * against the golden files. * * DUMP_RESULTS * When running with DUMP_RESULTS set, the test will print all the returned values * (as opposed to only the failing ones). To pretty-print this output use the python script: * DUMP_RESULTS=1 vm_parameter_validation | tools/format_vm_parameter_validation.py */ /* * xnu/libsyscall/mach/mach_vm.c intercepts some VM calls from userspace, * sometimes doing something other than the expected MIG call. * This test generates its own MIG userspace call sites to call the kernel * entrypoints directly, bypassing libsyscall's interference. * * The custom MIG call sites are generated into: * vm_parameter_validation_vm_map_user.c * vm_parameter_validation_mach_vm_user.c */ #pragma clang diagnostic ignored "-Wdeclaration-after-statement" #pragma clang diagnostic ignored "-Wmissing-prototypes" #pragma clang diagnostic ignored "-Wpedantic" /* * Our wire tests often try to wire the whole address space. * In that case the error code is determined by the first range of addresses * that cannot be wired. * In most cases that is a protection failure on a malloc guard page. But * sometimes, circumstances outside of our control change the address map of * our test process and add holes, which means we get a bad address error * instead, and the test fails because the return code doesn't match what's * recorded in the golden files. * To avoid this, we want to keep a guard page inside our data section. * Because that data section is one of the first things in our address space, * the behavior of wire is (more) predictable. */ static _Alignas(KB16) char guard_page[KB16]; static void set_up_guard_page(void) { /* * Ensure that _Alignas worked as expected. */ assert(0 == (((mach_vm_address_t)guard_page) & PAGE_MASK)); /* * Remove all permissions on guard_page such that it is a guard page. */ assert(0 == mprotect(guard_page, sizeof(guard_page), 0)); } // Return a file descriptor that tests can read and write. // A single temporary file is shared among all tests. static int get_fd() { static int fd = -1; if (fd > 0) { return fd; } char filename[] = "/tmp/vm_parameter_validation_XXXXXX"; fd = mkstemp(filename); assert(fd > 2); // not stdin/stdout/stderr return fd; } static int rosetta_dyld_fd = -1; // Return a file descriptor that Rosetta dyld will accept static int get_dyld_fd() { if (rosetta_dyld_fd >= 0) { return rosetta_dyld_fd; } if (!isRosetta()) { rosetta_dyld_fd = 0; return rosetta_dyld_fd; } rosetta_dyld_fd = 0; return rosetta_dyld_fd; } // Close the Rosetta dyld fd (only one test calls this) static void close_dyld_fd() { if (isRosetta()) { assert(rosetta_dyld_fd > 2); if (close(rosetta_dyld_fd) != 0) { assert(0); } rosetta_dyld_fd = -1; } } static int munmap_helper(void *ptr, size_t size) { mach_vm_address_t start, end; if (0 != size) { // munmap rejects size == 0 even though mmap accepts it /* * munmap expects aligned inputs, even though mmap sometimes * returns unaligned values */ start = ((mach_vm_address_t)ptr) & ~PAGE_MASK; end = (((mach_vm_address_t)ptr) + size + PAGE_MASK) & ~PAGE_MASK; return munmap((void*)start, end - start); } return 0; } // Some tests provoke EXC_GUARD exceptions. // We disable EXC_GUARD if possible. If we can't, we disable those tests instead. static bool EXC_GUARD_ENABLED = true; static int call_munlock(void *start, size_t size) { int err = munlock(start, size); return err ? errno : 0; } static int call_mlock(void *start, size_t size) { int err = mlock(start, size); return err ? errno : 0; } extern int __munmap(void *, size_t); static kern_return_t call_munmap(MAP_T map __unused, mach_vm_address_t start, mach_vm_size_t size) { int err = __munmap((void*)start, (size_t)size); return err ? errno : 0; } static int call_mremap_encrypted(void *start, size_t size) { int err = mremap_encrypted(start, size, CRYPTID_NO_ENCRYPTION, /*cputype=*/ 0, /*cpusubtype=*/ 0); return err ? errno : 0; } ///////////////////////////////////////////////////// // Mach tests static mach_port_t make_a_mem_object(mach_vm_size_t size) { mach_port_t out_handle; kern_return_t kr = mach_memory_object_memory_entry_64(mach_host_self(), 1, size, VM_PROT_READ | VM_PROT_WRITE, 0, &out_handle); assert(kr == 0); return out_handle; } static mach_port_t make_a_mem_entry(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(mach_host_self(), &s, (memory_object_offset_t)0, MAP_MEM_NAMED_CREATE | MAP_MEM_LEDGER_TAGGED, &port, MACH_PORT_NULL); T_QUIET; T_ASSERT_MACH_SUCCESS(kr, "allocate memory entry"); return port; } static inline void check_mach_memory_entry_outparam_changes(kern_return_t * kr, mach_port_t out_handle, mach_port_t saved_handle) { if (*kr != KERN_SUCCESS) { if (out_handle != (mach_port_t) saved_handle) { *kr = OUT_PARAM_BAD; } } } // mach_make_memory_entry is really several functions wearing a trenchcoat. // Run a separate test for each variation. // mach_make_memory_entry also has a confusing number of entrypoints: // U64: mach_make_memory_entry_64(64) (mach_make_memory_entry is the same MIG message) // U32: mach_make_memory_entry(32), mach_make_memory_entry_64(64), _mach_make_memory_entry(64) (each is a unique MIG message) #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_value = UNLIKELY_INITIAL_MACH_PORT; \ mach_port_t out_handle = invalid_value; \ kern_return_t kr = FN(map, &io_size, start, \ VM_PROT_READ | MAP_MEM_ONLY, &out_handle, memobject); \ if (kr == 0) { \ (void)mach_port_deallocate(mach_task_self(), out_handle); \ /* MAP_MEM_ONLY doesn't use the size. It should not change it. */ \ if(io_size != size) { \ kr = OUT_PARAM_BAD; \ } \ } \ (void)mach_port_deallocate(mach_task_self(), memobject); \ check_mach_memory_entry_outparam_changes(&kr, out_handle, invalid_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_value = UNLIKELY_INITIAL_MACH_PORT; \ mach_port_t out_handle = invalid_value; \ kern_return_t kr = FN(map, &io_size, start, \ VM_PROT_READ | MAP_MEM_NAMED_CREATE, &out_handle, memobject); \ if (kr == 0) { \ (void)mach_port_deallocate(mach_task_self(), out_handle); \ } \ (void)mach_port_deallocate(mach_task_self(), memobject); \ check_mach_memory_entry_outparam_changes(&kr, out_handle, invalid_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_value = UNLIKELY_INITIAL_MACH_PORT; \ mach_port_t out_handle = invalid_value; \ kern_return_t kr = FN(map, &io_size, start, \ VM_PROT_READ | MAP_MEM_VM_COPY, &out_handle, memobject); \ if (kr == 0) { \ (void)mach_port_deallocate(mach_task_self(), out_handle); \ } \ (void)mach_port_deallocate(mach_task_self(), memobject); \ check_mach_memory_entry_outparam_changes(&kr, out_handle, invalid_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_value = UNLIKELY_INITIAL_MACH_PORT; \ mach_port_t out_handle = invalid_value; \ kern_return_t kr = FN(map, &io_size, start, \ VM_PROT_READ | MAP_MEM_VM_SHARE, &out_handle, memobject); \ if (kr == 0) { \ (void)mach_port_deallocate(mach_task_self(), out_handle); \ } \ (void)mach_port_deallocate(mach_task_self(), memobject); \ check_mach_memory_entry_outparam_changes(&kr, out_handle, invalid_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_value = UNLIKELY_INITIAL_MACH_PORT; \ mach_port_t out_handle = invalid_value; \ kern_return_t kr = FN(map, &io_size, start, \ VM_PROT_READ | MAP_MEM_NAMED_REUSE, &out_handle, memobject); \ if (kr == 0) { \ (void)mach_port_deallocate(mach_task_self(), out_handle); \ } \ (void)mach_port_deallocate(mach_task_self(), memobject); \ check_mach_memory_entry_outparam_changes(&kr, out_handle, invalid_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_value = UNLIKELY_INITIAL_MACH_PORT; \ mach_port_t out_handle = invalid_value; \ kern_return_t kr = FN(map, &io_size, start, \ prot, &out_handle, memobject); \ if (kr == 0) { \ (void)mach_port_deallocate(mach_task_self(), out_handle); \ } \ (void)mach_port_deallocate(mach_task_self(), memobject); \ check_mach_memory_entry_outparam_changes(&kr, out_handle, invalid_value); \ return kr; \ } IMPL(mach_make_memory_entry_64, mach_vm_address_t) #if TEST_OLD_STYLE_MACH IMPL(mach_make_memory_entry, vm_address_t) IMPL(_mach_make_memory_entry, mach_vm_address_t) #endif #undef IMPL static inline void check_mach_memory_object_memory_entry_outparam_changes(kern_return_t * kr, mach_port_t out_handle, mach_port_t saved_out_handle) { if (*kr != KERN_SUCCESS) { if (out_handle != saved_out_handle) { *kr = OUT_PARAM_BAD; } } } #define IMPL(FN) \ static kern_return_t \ call_ ## FN ## __size(MAP_T map __unused, mach_vm_size_t size) \ { \ kern_return_t kr; \ mach_port_t invalid_value = UNLIKELY_INITIAL_MACH_PORT; \ mach_port_t out_entry = invalid_value; \ kr = FN(mach_host_self(), 1, size, VM_PROT_READ | VM_PROT_WRITE, 0, &out_entry); \ if (kr == 0) { \ (void)mach_port_deallocate(mach_task_self(), out_entry); \ } \ check_mach_memory_object_memory_entry_outparam_changes(&kr, out_entry, invalid_value); \ return kr; \ } \ static kern_return_t \ call_ ## FN ## __vm_prot(MAP_T map __unused, mach_vm_size_t size, vm_prot_t prot) \ { \ kern_return_t kr; \ mach_port_t invalid_value = UNLIKELY_INITIAL_MACH_PORT; \ mach_port_t out_entry = invalid_value; \ kr = FN(mach_host_self(), 1, size, prot, 0, &out_entry); \ if (kr == 0) { \ (void)mach_port_deallocate(mach_task_self(), out_entry); \ } \ check_mach_memory_object_memory_entry_outparam_changes(&kr, out_entry, invalid_value); \ return kr; \ } // The declaration of mach_memory_object_memory_entry is buggy on U32. // We compile in our own MIG user stub for it with a "replacement_" prefix. // rdar://117927965 IMPL(replacement_mach_memory_object_memory_entry) IMPL(mach_memory_object_memory_entry_64) #undef IMPL static inline void check_vm_read_outparam_changes(kern_return_t * kr, mach_vm_size_t size, mach_vm_size_t requested_size, mach_vm_address_t addr) { if (*kr == KERN_SUCCESS) { if (size != requested_size) { *kr = OUT_PARAM_BAD; } if (size == 0) { if (addr != 0) { *kr = OUT_PARAM_BAD; } } } } 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 = UNLIKELY_INITIAL_ADDRESS; mach_msg_type_number_t out_size = UNLIKELY_INITIAL_SIZE; kern_return_t kr = mach_vm_read(map, start, size, &out_addr, &out_size); if (kr == 0) { (void)mach_vm_deallocate(mach_task_self(), out_addr, out_size); } check_vm_read_outparam_changes(&kr, out_size, size, out_addr); return kr; } #if TEST_OLD_STYLE_MACH static kern_return_t call_vm_read(MAP_T map, vm_address_t start, vm_size_t size) { vm_offset_t out_addr = UNLIKELY_INITIAL_ADDRESS; mach_msg_type_number_t out_size = UNLIKELY_INITIAL_SIZE; kern_return_t kr = vm_read(map, start, size, &out_addr, &out_size); if (kr == 0) { (void)mach_vm_deallocate(mach_task_self(), out_addr, out_size); } check_vm_read_outparam_changes(&kr, out_size, size, out_addr); return kr; } #endif static kern_return_t call_mach_vm_read_list(MAP_T map, mach_vm_address_t start, mach_vm_size_t size) { mach_vm_read_entry_t re = {{.address = start, .size = size}}; kern_return_t kr = mach_vm_read_list(map, re, 1); if (kr == 0) { (void)mach_vm_deallocate(mach_task_self(), re[0].address, re[0].size); } return kr; } #if TEST_OLD_STYLE_MACH static kern_return_t call_vm_read_list(MAP_T map, vm_address_t start, vm_size_t size) { vm_read_entry_t re = {{.address = start, .size = size}}; kern_return_t kr = vm_read_list(map, re, 1); if (kr == 0) { (void)mach_vm_deallocate(mach_task_self(), re[0].address, re[0].size); } return kr; } #endif static inline void check_vm_read_overwrite_outparam_changes(kern_return_t * kr, mach_vm_size_t size, mach_vm_size_t requested_size) { if (*kr == KERN_SUCCESS) { if (size != requested_size) { *kr = OUT_PARAM_BAD; } } } static kern_return_t __unused call_mach_vm_read_overwrite__ssz(MAP_T map, mach_vm_address_t start, mach_vm_address_t start_2, mach_vm_size_t size) { mach_vm_size_t out_size; kern_return_t kr = mach_vm_read_overwrite(map, start, size, start_2, &out_size); check_vm_read_overwrite_outparam_changes(&kr, out_size, size); return kr; } static kern_return_t call_mach_vm_read_overwrite__src(MAP_T map, mach_vm_address_t src, mach_vm_size_t size) { mach_vm_size_t out_size; allocation_t dst SMART_ALLOCATE_VM(map, TEST_ALLOC_SIZE, VM_PROT_DEFAULT); kern_return_t kr = mach_vm_read_overwrite(map, src, size, dst.addr, &out_size); check_vm_read_overwrite_outparam_changes(&kr, out_size, size); return kr; } static kern_return_t call_mach_vm_read_overwrite__dst(MAP_T map, mach_vm_address_t dst, mach_vm_size_t size) { mach_vm_size_t out_size; allocation_t src SMART_ALLOCATE_VM(map, TEST_ALLOC_SIZE, VM_PROT_DEFAULT); kern_return_t kr = mach_vm_read_overwrite(map, src.addr, size, dst, &out_size); check_vm_read_overwrite_outparam_changes(&kr, out_size, size); return kr; } #if TEST_OLD_STYLE_MACH static kern_return_t __unused call_vm_read_overwrite__ssz(MAP_T map, vm_address_t start, vm_address_t start_2, vm_size_t size) { vm_size_t out_size; kern_return_t kr = vm_read_overwrite(map, start, size, start_2, &out_size); check_vm_read_overwrite_outparam_changes(&kr, out_size, size); return kr; } static kern_return_t call_vm_read_overwrite__src(MAP_T map, vm_address_t src, vm_size_t size) { vm_size_t out_size; allocation_t dst SMART_ALLOCATE_VM(map, TEST_ALLOC_SIZE, VM_PROT_DEFAULT); kern_return_t kr = vm_read_overwrite(map, src, size, (vm_address_t) dst.addr, &out_size); check_vm_read_overwrite_outparam_changes(&kr, out_size, size); return kr; } static kern_return_t call_vm_read_overwrite__dst(MAP_T map, vm_address_t dst, vm_size_t size) { vm_size_t out_size; allocation_t src SMART_ALLOCATE_VM(map, TEST_ALLOC_SIZE, VM_PROT_DEFAULT); kern_return_t kr = vm_read_overwrite(map, (vm_address_t) src.addr, size, dst, &out_size); check_vm_read_overwrite_outparam_changes(&kr, out_size, size); return kr; } #endif static kern_return_t __unused call_mach_vm_copy__ssz(MAP_T map, mach_vm_address_t start, mach_vm_address_t start_2, mach_vm_size_t size) { kern_return_t kr = mach_vm_copy(map, start, size, start_2); return kr; } static kern_return_t call_mach_vm_copy__src(MAP_T map, mach_vm_address_t src, mach_vm_size_t size) { allocation_t dst SMART_ALLOCATE_VM(map, TEST_ALLOC_SIZE, VM_PROT_DEFAULT); kern_return_t kr = mach_vm_copy(map, src, size, dst.addr); return kr; } static kern_return_t call_mach_vm_copy__dst(MAP_T map, mach_vm_address_t dst, mach_vm_size_t size) { allocation_t src SMART_ALLOCATE_VM(map, TEST_ALLOC_SIZE, VM_PROT_DEFAULT); kern_return_t kr = mach_vm_copy(map, src.addr, size, dst); return kr; } #if TEST_OLD_STYLE_MACH static kern_return_t __unused call_vm_copy__ssz(MAP_T map, mach_vm_address_t start, mach_vm_address_t start_2, mach_vm_size_t size) { kern_return_t kr = vm_copy(map, (vm_address_t) start, (vm_size_t) size, (vm_address_t) start_2); return kr; } static kern_return_t call_vm_copy__src(MAP_T map, vm_address_t src, vm_size_t size) { allocation_t dst SMART_ALLOCATE_VM(map, TEST_ALLOC_SIZE, VM_PROT_DEFAULT); kern_return_t kr = vm_copy(map, src, size, (vm_address_t) dst.addr); return kr; } static kern_return_t call_vm_copy__dst(MAP_T map, vm_address_t dst, vm_size_t size) { allocation_t src SMART_ALLOCATE_VM(map, TEST_ALLOC_SIZE, VM_PROT_DEFAULT); kern_return_t kr = vm_copy(map, (vm_address_t) src.addr, size, dst); return kr; } #endif static kern_return_t __unused call_mach_vm_write__ssz(MAP_T map, mach_vm_address_t start, mach_vm_address_t start_2, mach_vm_size_t size) { kern_return_t kr = mach_vm_write(map, start, (vm_offset_t) start_2, (mach_msg_type_number_t) size); return kr; } static kern_return_t call_mach_vm_write__src(MAP_T map, mach_vm_address_t start, mach_vm_size_t size) { allocation_t dst SMART_ALLOCATE_VM(map, TEST_ALLOC_SIZE, VM_PROT_DEFAULT); kern_return_t kr = mach_vm_write(map, dst.addr, (vm_offset_t) start, (mach_msg_type_number_t) size); return kr; } static kern_return_t call_mach_vm_write__dst(MAP_T map, mach_vm_address_t start, mach_vm_size_t size) { allocation_t src SMART_ALLOCATE_VM(map, TEST_ALLOC_SIZE, VM_PROT_DEFAULT); kern_return_t kr = mach_vm_write(map, start, (vm_offset_t) src.addr, (mach_msg_type_number_t) size); return kr; } #if TEST_OLD_STYLE_MACH static kern_return_t __unused call_vm_write__ssz(MAP_T map, mach_vm_address_t start, mach_vm_address_t start_2, mach_vm_size_t size) { kern_return_t kr = vm_write(map, (vm_address_t) start, (vm_offset_t) start_2, (mach_msg_type_number_t) size); return kr; } static kern_return_t call_vm_write__src(MAP_T map, vm_address_t start, vm_size_t size) { allocation_t dst SMART_ALLOCATE_VM(map, TEST_ALLOC_SIZE, VM_PROT_DEFAULT); kern_return_t kr = vm_write(map, (vm_address_t) dst.addr, start, (mach_msg_type_number_t) size); return kr; } static kern_return_t call_vm_write__dst(MAP_T map, vm_address_t start, vm_size_t size) { allocation_t src SMART_ALLOCATE_VM(map, TEST_ALLOC_SIZE, VM_PROT_DEFAULT); kern_return_t kr = vm_write(map, start, (vm_offset_t) src.addr, (mach_msg_type_number_t) size); return kr; } #endif // mach_vm_wire, vm_wire (start/size) // "wire" and "unwire" paths diverge internally; test both #define IMPL(FN, T, FLAVOR, PROT) \ static kern_return_t \ call_ ## FN ## __ ## FLAVOR(MAP_T map, T start, T size) \ { \ mach_port_t host_priv = HOST_PRIV_NULL; \ kern_return_t kr = host_get_host_priv_port(mach_host_self(), &host_priv); \ assert(kr == 0); /* host priv port on macOS requires entitlements or root */ \ kr = FN(host_priv, map, start, size, PROT); \ return kr; \ } IMPL(mach_vm_wire, mach_vm_address_t, wire, VM_PROT_READ) IMPL(mach_vm_wire, mach_vm_address_t, unwire, VM_PROT_NONE) // The declaration of vm_wire is buggy on U32. // We compile in our own MIG user stub for it with a "replacement_" prefix. // rdar://118258929 IMPL(replacement_vm_wire, mach_vm_address_t, wire, VM_PROT_READ) IMPL(replacement_vm_wire, mach_vm_address_t, unwire, VM_PROT_NONE) #undef IMPL // mach_vm_wire, vm_wire (vm_prot_t) #define IMPL(FN, T) \ static kern_return_t \ call_ ## FN ## __vm_prot(MAP_T map, T start, T size, vm_prot_t prot) \ { \ mach_port_t host_priv = HOST_PRIV_NULL; \ kern_return_t kr = host_get_host_priv_port(mach_host_self(), &host_priv); \ assert(kr == 0); /* host priv port on macOS requires entitlements or root */ \ kr = FN(host_priv, map, start, size, prot); \ return kr; \ } IMPL(mach_vm_wire, mach_vm_address_t) // The declaration of vm_wire is buggy on U32. // We compile in our own MIG user stub for it with a "replacement_" prefix. // rdar://118258929 IMPL(replacement_vm_wire, mach_vm_address_t) #undef IMPL // mach_vm_map/vm32_map/vm32_map_64 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); (void)mach_port_deallocate(mach_task_self(), memobject); // fixed-overwrite with pre-existing allocation, don't deallocate 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); (void)mach_port_deallocate(mach_task_self(), memobject); // fixed-overwrite with pre-existing allocation, don't deallocate 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); } (void)mach_port_deallocate(mach_task_self(), 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); (void)mach_port_deallocate(mach_task_self(), 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); (void)mach_port_deallocate(mach_task_self(), 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); (void)mach_port_deallocate(mach_task_self(), 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); (void)mach_port_deallocate(mach_task_self(), 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); (void)mach_port_deallocate(mach_task_self(), 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); } // 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) \ static 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) { mach_vm_address_t addr = *address; kern_return_t kr = mach_vm_map(target_task, &addr, size, mask, flags, object, offset, copy, cur_protection, max_protection, inheritance); check_mach_vm_map_outparam_changes(&kr, addr, *address, flags, target_task); *address = addr; return kr; } IMPL(mach_vm_map_wrapped) #if TEST_OLD_STYLE_MACH static kern_return_t vm_map_64_retyped(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) { vm_address_t addr = (vm_address_t)*address; kern_return_t kr = vm_map_64(target_task, &addr, (vm_size_t)size, (vm_address_t)mask, flags, object, (vm_offset_t)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; } IMPL(vm_map_64_retyped) static kern_return_t vm_map_retyped(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) { vm_address_t addr = (vm_address_t)*address; kern_return_t kr = vm_map(target_task, &addr, (vm_size_t)size, (vm_address_t)mask, flags, object, (vm_offset_t)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; } IMPL(vm_map_retyped) #endif #undef IMPL_MAP_FN_START_SIZE #undef IMPL_MAP_FN_SIZE #undef IMPL_MAP_FN_START_SIZE_OFFSET_OBJECT #undef IMPL_MAP_FN_START_SIZE_INHERIT #undef IMPL_MAP_FN_START_SIZE_FLAGS #undef IMPL_MAP_FN_PROT_PAIRS #undef IMPL // mmap // Directly calling this symbol lets us hit the syscall directly instead of the libsyscall wrapper. void *__mmap(void *addr, size_t len, int prot, int flags, int fildes, off_t off); // We invert MAP_UNIX03 in the flags. This is because by default libsyscall intercepts calls to mmap and adds MAP_UNIX03. // That means MAP_UNIX03 should be the default for most of our tests, and we should only test without MAP_UNIX03 when we explicitly want to. void * mmap_wrapper(void *addr, size_t len, int prot, int flags, int fildes, off_t off) { flags ^= MAP_UNIX03; return __mmap(addr, len, prot, flags, fildes, off); } // Rename the UNIX03 flag for the code below since we're inverting its meaning. #define MAP_NOT_UNIX03 0x40000 static_assert(MAP_NOT_UNIX03 == MAP_UNIX03, "MAP_UNIX03 value changed"); #undef MAP_UNIX03 #define MAP_UNIX03 dont_use_MAP_UNIX03 // helpers // Return true if security policy disallows unsigned code. // Some test results are expected to change with this set. static bool unsigned_code_is_disallowed(void) { if (isRosetta()) { return false; } int out_value = 0; size_t io_size = sizeof(out_value); if (0 == sysctlbyname("security.mac.amfi.unsigned_code_policy", &out_value, &io_size, NULL, 0)) { return out_value; } // sysctl not present, assume unsigned code is okay return false; } static int maybe_hide_mmap_failure(int ret, int prot, int fd) { // Special case for mmap(PROT_EXEC, fd). // When SIP is enabled these get EPERM from mac_file_check_mmap(). // The golden files record the SIP-disabled values. // This special case also allows the test to succeed when SIP // is enabled even though the return value isn't the golden one. if (ret == EPERM && fd != -1 && (prot & PROT_EXEC) && unsigned_code_is_disallowed()) { return ACCEPTABLE; } return ret; } static kern_return_t help_call_mmap__vm_prot(MAP_T map __unused, int flags, mach_vm_address_t start, mach_vm_size_t size, vm_prot_t prot) { int fd = -1; if (!(flags & MAP_ANON)) { fd = get_fd(); } void *rv = mmap_wrapper((void *)start, (size_t) size, prot, flags, fd, 0); if (rv == MAP_FAILED) { return maybe_hide_mmap_failure(errno, prot, fd); } else { assert(0 == munmap_helper(rv, size)); return 0; } } static kern_return_t help_call_mmap__kernel_flags(MAP_T map __unused, int mmap_flags, mach_vm_address_t start, mach_vm_size_t size, int kernel_flags) { void *rv = mmap_wrapper((void *)start, (size_t) size, VM_PROT_DEFAULT, mmap_flags, kernel_flags, 0); if (rv == MAP_FAILED) { return errno; } else { assert(0 == munmap_helper(rv, size)); return 0; } } static kern_return_t help_call_mmap__dst_size_fileoff(MAP_T map __unused, int flags, mach_vm_address_t dst, mach_vm_size_t size, mach_vm_address_t fileoff) { int fd = -1; if (!(flags & MAP_ANON)) { fd = get_fd(); } void *rv = mmap_wrapper((void *)dst, (size_t) size, VM_PROT_DEFAULT, flags, fd, (off_t)fileoff); if (rv == MAP_FAILED) { return errno; } else { assert(0 == munmap_helper(rv, size)); return 0; } } static kern_return_t help_call_mmap__start_size(MAP_T map __unused, int flags, mach_vm_address_t start, mach_vm_size_t size) { int fd = -1; if (!(flags & MAP_ANON)) { fd = get_fd(); } void *rv = mmap_wrapper((void *)start, (size_t) size, VM_PROT_DEFAULT, flags, fd, 0); if (rv == MAP_FAILED) { return errno; } else { assert(0 == munmap_helper(rv, size)); return 0; } } static kern_return_t help_call_mmap__offset_size(MAP_T map __unused, int flags, mach_vm_address_t offset, mach_vm_size_t size) { int fd = -1; if (!(flags & MAP_ANON)) { fd = get_fd(); } void *rv = mmap_wrapper((void *)0, (size_t) size, VM_PROT_DEFAULT, flags, fd, (off_t)offset); if (rv == MAP_FAILED) { return errno; } else { assert(0 == munmap_helper(rv, size)); return 0; } } #define IMPL_ONE_FROM_HELPER(type, variant, flags, ...) \ static kern_return_t \ __attribute__((used)) \ call_mmap ## __ ## variant ## __ ## type(MAP_T map, mach_vm_address_t start, mach_vm_size_t size DROP_COMMAS(__VA_ARGS__)) { \ return help_call_mmap__ ## type(map, flags, start, size DROP_TYPES(__VA_ARGS__)); \ } // call functions #define IMPL_FROM_HELPER(type, ...) \ IMPL_ONE_FROM_HELPER(type, file_private, MAP_FILE | MAP_PRIVATE, ##__VA_ARGS__) \ IMPL_ONE_FROM_HELPER(type, anon_private, MAP_ANON | MAP_PRIVATE, ##__VA_ARGS__) \ IMPL_ONE_FROM_HELPER(type, file_shared, MAP_FILE | MAP_SHARED, ##__VA_ARGS__) \ IMPL_ONE_FROM_HELPER(type, anon_shared, MAP_ANON | MAP_SHARED, ##__VA_ARGS__) \ IMPL_ONE_FROM_HELPER(type, file_private_codesign, MAP_FILE | MAP_PRIVATE | MAP_RESILIENT_CODESIGN, ##__VA_ARGS__) \ IMPL_ONE_FROM_HELPER(type, file_private_media, MAP_FILE | MAP_PRIVATE | MAP_RESILIENT_MEDIA, ##__VA_ARGS__) \ IMPL_ONE_FROM_HELPER(type, nounix03_private, MAP_FILE | MAP_PRIVATE | MAP_NOT_UNIX03, ##__VA_ARGS__) \ IMPL_ONE_FROM_HELPER(type, fixed_private, MAP_FILE | MAP_PRIVATE | MAP_FIXED, ##__VA_ARGS__) \ IMPL_FROM_HELPER(vm_prot, vm_prot_t, prot) IMPL_FROM_HELPER(dst_size_fileoff, mach_vm_address_t, fileoff) IMPL_FROM_HELPER(start_size) IMPL_FROM_HELPER(offset_size) IMPL_ONE_FROM_HELPER(kernel_flags, anon_private, MAP_ANON | MAP_PRIVATE, int, kernel_flags) IMPL_ONE_FROM_HELPER(kernel_flags, anon_shared, MAP_ANON | MAP_SHARED, int, kernel_flags) static kern_return_t call_mmap__mmap_flags(MAP_T map __unused, mach_vm_address_t start, mach_vm_size_t size, int mmap_flags) { int fd = -1; if (!(mmap_flags & MAP_ANON)) { fd = get_fd(); } void *rv = mmap_wrapper((void *)start, (size_t) size, VM_PROT_DEFAULT, mmap_flags, fd, 0); if (rv == MAP_FAILED) { return errno; } else { assert(0 == munmap(rv, (size_t) size)); return 0; } } // Mach memory entry ownership 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(TEST_ALLOC_SIZE + 1); kern_return_t kr = mach_memory_entry_ownership(mementry, mach_task_self(), ledger_tag, 0); (void)mach_port_deallocate(mach_task_self(), 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(TEST_ALLOC_SIZE + 1); kern_return_t kr = mach_memory_entry_ownership(mementry, mach_task_self(), VM_LEDGER_TAG_DEFAULT, ledger_flag); (void)mach_port_deallocate(mach_task_self(), mementry); return kr; } // For deallocators like munmap and vm_deallocate. // Return a non-zero error code if we should avoid performing this trial. kern_return_t short_circuit_deallocator(MAP_T map, start_size_trial_t trial) { // mach_vm_deallocate(size == 0) is safe if (trial.size == 0) { return 0; } // Allow deallocation attempts based on a valid allocation // (assumes the test loop will slide this trial to a valid allocation) if (!trial.start_is_absolute && trial.size_is_absolute) { return 0; } // Avoid overwriting random live memory. if (!vm_sanitize_range_overflows_strict_zero(trial.start, trial.size, VM_MAP_PAGE_MASK(map))) { return IGNORED; } // Avoid EXC_GUARD if it is still enabled. mach_vm_address_t sum; if (!__builtin_add_overflow(trial.start, trial.size, &sum) && trial.start + trial.size != 0 && round_up_page(trial.start + trial.size, PAGE_SIZE) == 0) { // this case provokes EXC_GUARD if (EXC_GUARD_ENABLED) { return GUARD; } } // Allow. return 0; } 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; } #if TEST_OLD_STYLE_MACH 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; } #endif 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(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(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(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_inherit(MAP_T map, mach_vm_address_t start, mach_vm_size_t size) { kern_return_t kr = mach_vm_inherit(map, start, size, VM_INHERIT_NONE); return kr; } #if TEST_OLD_STYLE_MACH static kern_return_t call_vm_inherit(MAP_T map, vm_address_t start, vm_size_t size) { kern_return_t kr = vm_inherit(map, start, size, VM_INHERIT_NONE); return kr; } #endif static int call_minherit(void *start, size_t size) { int err = minherit(start, size, VM_INHERIT_SHARE); return err ? errno : 0; } static kern_return_t call_mach_vm_inherit__inherit(MAP_T map, mach_vm_address_t start, mach_vm_size_t size, vm_inherit_t value) { kern_return_t kr = mach_vm_inherit(map, start, size, value); return kr; } static int call_minherit__inherit(void * start, size_t size, int value) { int err = minherit(start, size, value); return err ? errno : 0; } static kern_return_t call_mach_vm_protect__start_size(MAP_T map, mach_vm_address_t start, mach_vm_size_t size) { kern_return_t kr = mach_vm_protect(map, start, size, 0, VM_PROT_READ | VM_PROT_WRITE); return kr; } static kern_return_t call_mach_vm_protect__vm_prot(MAP_T map, mach_vm_address_t start, mach_vm_size_t size, vm_prot_t prot) { kern_return_t kr = mach_vm_protect(map, start, size, 0, prot); return kr; } #if TEST_OLD_STYLE_MACH static kern_return_t call_vm_protect__start_size(MAP_T map, vm_address_t start, vm_size_t size) { kern_return_t kr = vm_protect(map, start, size, 0, VM_PROT_READ | VM_PROT_WRITE); return kr; } static kern_return_t call_vm_protect__vm_prot(MAP_T map, vm_address_t start, vm_size_t size, vm_prot_t prot) { kern_return_t kr = vm_protect(map, start, size, 0, prot); return kr; } #endif extern int __mprotect(void *, size_t, int); static int call_mprotect__start_size(void *start, size_t size) { int err = __mprotect(start, size, PROT_READ | PROT_WRITE); return err ? errno : 0; } static int call_mprotect__vm_prot(void *start, size_t size, int prot) { int err = __mprotect(start, size, prot); return err ? errno : 0; } #if TEST_OLD_STYLE_MACH static kern_return_t call_vm_behavior_set__start_size__default(MAP_T map, vm_address_t start, vm_size_t size) { kern_return_t kr = vm_behavior_set(map, start, size, VM_BEHAVIOR_DEFAULT); return kr; } static kern_return_t call_vm_behavior_set__start_size__can_reuse(MAP_T map, vm_address_t start, vm_size_t size) { kern_return_t kr = vm_behavior_set(map, start, size, VM_BEHAVIOR_CAN_REUSE); return kr; } static kern_return_t call_vm_behavior_set__vm_behavior(MAP_T map, vm_address_t start, vm_size_t size, vm_behavior_t behavior) { kern_return_t kr = vm_behavior_set(map, start, size, behavior); return kr; } #endif /* TEST_OLD_STYLE_MACH */ extern int __shared_region_map_and_slide_2_np(uint32_t files_count, const struct shared_file_np *files, uint32_t mappings_count, const struct shared_file_mapping_slide_np *mappings); static int maybe_hide_shared_region_map_failure(int ret, uint32_t files_count, const struct shared_file_np *files, uint32_t mappings_count) { // Special case for __shared_region_map_and_slide_2_np(). // When SIP is enabled this case gets EPERM instead of EINVAL due to // vm_shared_region_map_file returning KERN_PROTECTION_FAILURE instead of // KERN_INVALID_ARGUMENT. if (ret == EPERM && files_count == 1 && mappings_count == 1 && files->sf_fd == get_fd() && files->sf_mappings_count == 1 && unsigned_code_is_disallowed()) { return ACCEPTABLE; } return ret; } static int call_shared_region_map_and_slide_2_np_child(uint32_t files_count, const struct shared_file_np *files, uint32_t mappings_count, const struct shared_file_mapping_slide_np *mappings) { int err = __shared_region_map_and_slide_2_np(files_count, files, mappings_count, mappings); return err ? maybe_hide_shared_region_map_failure(errno, files_count, files, mappings_count) : 0; } typedef struct { uint32_t files_count; const struct shared_file_np *files; uint32_t mappings_count; const struct shared_file_mapping_slide_np *mappings; } map_n_slice_thread_args; void* thread_func(void* args) { map_n_slice_thread_args *thread_args = (map_n_slice_thread_args *)args; uint32_t files_count = thread_args->files_count; const struct shared_file_np *files = thread_args->files; uint32_t mappings_count = thread_args->mappings_count; const struct shared_file_mapping_slide_np *mappings = thread_args->mappings; int err = call_shared_region_map_and_slide_2_np_child(files_count, files, mappings_count, mappings); int *result = malloc(sizeof(int)); assert(result != NULL); *result = err; return result; } static int call_shared_region_map_and_slide_2_np_in_thread(uint32_t files_count, const struct shared_file_np *files, uint32_t mappings_count, const struct shared_file_mapping_slide_np *mappings) { // From vm/vm_shared_region.c: After a chroot(), the calling process keeps using its original shared region [...] // But its children will use a different shared region [...] if (chroot(".") < 0) { return BUSTED; } map_n_slice_thread_args args = {files_count, files, mappings_count, mappings}; pthread_t thread; if (pthread_create(&thread, NULL, thread_func, (void *)&args) < 0) { return -91; } int *err; if (pthread_join(thread, (void**)&err) < 0) { return BUSTED; } if (chroot("/") < 0) { return BUSTED; } return *err; } static int call_madvise__start_size(void *start, size_t size) { int err = madvise(start, size, MADV_NORMAL); return err ? errno : 0; } static int call_madvise__vm_advise(void *start, size_t size, int advise) { int err = madvise(start, size, advise); return err ? errno : 0; } static int call_mach_vm_msync__start_size(MAP_T map, mach_vm_address_t start, mach_vm_size_t size) { kern_return_t kr = mach_vm_msync(map, start, size, VM_SYNC_ASYNCHRONOUS); return kr; } static int call_mach_vm_msync__vm_sync(MAP_T map, mach_vm_address_t start, mach_vm_size_t size, vm_sync_t sync) { kern_return_t kr = mach_vm_msync(map, start, size, sync); return kr; } #if TEST_OLD_STYLE_MACH static int call_vm_msync__start_size(MAP_T map, vm_address_t start, vm_size_t size) { kern_return_t kr = vm_msync(map, start, size, VM_SYNC_ASYNCHRONOUS); return kr; } static int call_vm_msync__vm_sync(MAP_T map, vm_address_t start, vm_size_t size, vm_sync_t sync) { kern_return_t kr = vm_msync(map, start, size, sync); return kr; } #endif /* TEST_OLD_STYLE_MACH */ // msync has a libsyscall wrapper that does alignment. We want the raw syscall. int __msync(void *, size_t, int); static int call_msync__start_size(void *start, size_t size) { int err = __msync(start, size, MS_SYNC); return err ? errno : 0; } static int call_msync__vm_msync(void *start, size_t size, int msync_value) { int err = __msync(start, size, msync_value); return err ? errno : 0; } // msync nocancel isn't declared, but we want to directly hit the syscall int __msync_nocancel(void *, size_t, int); static int call_msync_nocancel__start_size(void *start, size_t size) { int err = __msync_nocancel(start, size, MS_SYNC); return err ? errno : 0; } static int call_msync_nocancel__vm_msync(void *start, size_t size, int msync_value) { int err = __msync_nocancel(start, size, msync_value); return err ? errno : 0; } static void check_mach_vm_machine_attribute_outparam_changes(kern_return_t * kr, vm_machine_attribute_val_t value, vm_machine_attribute_val_t saved_value) { if (value != saved_value) { *kr = OUT_PARAM_BAD; } } static int call_mach_vm_machine_attribute__start_size(MAP_T map, mach_vm_address_t start, mach_vm_size_t size) { vm_machine_attribute_val_t value = MATTR_VAL_GET; vm_machine_attribute_val_t initial_value = value; kern_return_t kr = mach_vm_machine_attribute(map, start, size, MATTR_CACHE, &value); check_mach_vm_machine_attribute_outparam_changes(&kr, value, initial_value); return kr; } static int call_mach_vm_machine_attribute__machine_attribute(MAP_T map, mach_vm_address_t start, mach_vm_size_t size, vm_machine_attribute_t attr) { vm_machine_attribute_val_t value = MATTR_VAL_GET; vm_machine_attribute_val_t initial_value = value; kern_return_t kr = mach_vm_machine_attribute(map, start, size, attr, &value); check_mach_vm_machine_attribute_outparam_changes(&kr, value, initial_value); return kr; } #if TEST_OLD_STYLE_MACH static int call_vm_machine_attribute__start_size(MAP_T map, vm_address_t start, vm_size_t size) { vm_machine_attribute_val_t value = MATTR_VAL_GET; vm_machine_attribute_val_t initial_value = value; kern_return_t kr = vm_machine_attribute(map, start, size, MATTR_CACHE, &value); check_mach_vm_machine_attribute_outparam_changes(&kr, value, initial_value); return kr; } static int call_vm_machine_attribute__machine_attribute(MAP_T map, vm_address_t start, vm_size_t size, vm_machine_attribute_t attr) { vm_machine_attribute_val_t value = MATTR_VAL_GET; vm_machine_attribute_val_t initial_value = value; kern_return_t kr = vm_machine_attribute(map, start, size, attr, &value); check_mach_vm_machine_attribute_outparam_changes(&kr, value, initial_value); return kr; } #endif /* TEST_OLD_STYLE_MACH */ static int call_mach_vm_purgable_control__address__get(MAP_T map, mach_vm_address_t addr) { int state = INVALID_PURGABLE_STATE; int initial_state = state; kern_return_t kr = mach_vm_purgable_control(map, addr, VM_PURGABLE_GET_STATE, &state); check_mach_vm_purgable_control_outparam_changes(&kr, state, initial_state, VM_PURGABLE_GET_STATE); return kr; } static int call_mach_vm_purgable_control__address__purge_all(MAP_T map, mach_vm_address_t addr) { int state = INVALID_PURGABLE_STATE; int initial_state = state; kern_return_t kr = mach_vm_purgable_control(map, addr, VM_PURGABLE_PURGE_ALL, &state); check_mach_vm_purgable_control_outparam_changes(&kr, state, initial_state, VM_PURGABLE_PURGE_ALL); return kr; } static int call_mach_vm_purgable_control__purgeable_state(MAP_T map, mach_vm_address_t addr, vm_purgable_t control, int state) { int initial_state = state; kern_return_t kr = mach_vm_purgable_control(map, addr, control, &state); check_mach_vm_purgable_control_outparam_changes(&kr, state, initial_state, control); return kr; } #if TEST_OLD_STYLE_MACH static int call_vm_purgable_control__address__get(MAP_T map, vm_address_t addr) { int state = INVALID_PURGABLE_STATE; int initial_state = state; kern_return_t kr = vm_purgable_control(map, addr, VM_PURGABLE_GET_STATE, &state); check_mach_vm_purgable_control_outparam_changes(&kr, state, initial_state, VM_PURGABLE_GET_STATE); return kr; } static int call_vm_purgable_control__address__purge_all(MAP_T map, vm_address_t addr) { int state = INVALID_PURGABLE_STATE; int initial_state = state; kern_return_t kr = vm_purgable_control(map, addr, VM_PURGABLE_PURGE_ALL, &state); check_mach_vm_purgable_control_outparam_changes(&kr, state, initial_state, VM_PURGABLE_PURGE_ALL); return kr; } static int call_vm_purgable_control__purgeable_state(MAP_T map, vm_address_t addr, vm_purgable_t control, int state) { int initial_state = state; kern_return_t kr = vm_purgable_control(map, addr, control, &state); check_mach_vm_purgable_control_outparam_changes(&kr, state, initial_state, control); return kr; } #endif /* TEST_OLD_STYLE_MACH */ static void check_mach_vm_region_recurse_outparam_changes(kern_return_t * kr, void * info, void * saved_info, size_t info_size, natural_t depth, natural_t saved_depth, mach_vm_address_t addr, mach_vm_address_t saved_addr, mach_vm_size_t size, mach_vm_size_t saved_size) { if (*kr == KERN_SUCCESS) { if (depth == saved_depth) { *kr = OUT_PARAM_BAD; } if (size == saved_size) { *kr = OUT_PARAM_BAD; } if (memcmp(info, saved_info, info_size) == 0) { *kr = OUT_PARAM_BAD; } } else { if (depth != saved_depth || addr != saved_addr || size != saved_size || memcmp(info, saved_info, info_size) != 0) { *kr = OUT_PARAM_BAD; } } } static kern_return_t call_mach_vm_region_recurse(MAP_T map, mach_vm_address_t addr) { vm_region_submap_info_data_64_t info; info.inheritance = INVALID_INHERIT; vm_region_submap_info_data_64_t saved_info = info; mach_vm_size_t size_out = UNLIKELY_INITIAL_SIZE; mach_vm_size_t saved_size = size_out; natural_t depth = 10; natural_t saved_depth = depth; mach_msg_type_number_t count = VM_REGION_SUBMAP_INFO_COUNT_64; mach_vm_address_t addr_cpy = addr; kern_return_t kr = mach_vm_region_recurse(map, &addr_cpy, &size_out, &depth, (vm_region_recurse_info_t)&info, &count); check_mach_vm_region_recurse_outparam_changes(&kr, &info, &saved_info, sizeof(info), depth, saved_depth, addr, addr_cpy, size_out, saved_size); return kr; } #if TEST_OLD_STYLE_MACH static kern_return_t call_vm_region_recurse(MAP_T map, vm_address_t addr) { vm_region_submap_info_data_t info; info.inheritance = INVALID_INHERIT; vm_region_submap_info_data_t saved_info = info; vm_size_t size_out = UNLIKELY_INITIAL_SIZE; vm_size_t saved_size = size_out; natural_t depth = 10; natural_t saved_depth = depth; mach_msg_type_number_t count = VM_REGION_SUBMAP_INFO_COUNT; vm_address_t addr_cpy = addr; kern_return_t kr = vm_region_recurse(map, &addr_cpy, &size_out, &depth, (vm_region_recurse_info_t)&info, &count); check_mach_vm_region_recurse_outparam_changes(&kr, &info, &saved_info, sizeof(info), depth, saved_depth, addr_cpy, addr, size_out, saved_size); return kr; } static kern_return_t call_vm_region_recurse_64(MAP_T map, vm_address_t addr) { vm_region_submap_info_data_64_t info; info.inheritance = INVALID_INHERIT; vm_region_submap_info_data_64_t saved_info = info; vm_size_t size_out = UNLIKELY_INITIAL_SIZE; vm_size_t saved_size = size_out; natural_t depth = 10; natural_t saved_depth = depth; mach_msg_type_number_t count = VM_REGION_SUBMAP_INFO_COUNT_64; vm_address_t addr_cpy = addr; kern_return_t kr = vm_region_recurse_64(map, &addr_cpy, &size_out, &depth, (vm_region_recurse_info_t)&info, &count); check_mach_vm_region_recurse_outparam_changes(&kr, &info, &saved_info, sizeof(info), depth, saved_depth, addr_cpy, addr, size_out, saved_size); return kr; } #endif /* TEST_OLD_STYLE_MACH */ static kern_return_t call_mach_vm_page_info(MAP_T map, mach_vm_address_t addr) { vm_page_info_flavor_t flavor = VM_PAGE_INFO_BASIC; mach_msg_type_number_t count = VM_PAGE_INFO_BASIC_COUNT; mach_msg_type_number_t saved_count = count; vm_page_info_basic_data_t info = {0}; info.depth = -1; vm_page_info_basic_data_t saved_info = info; kern_return_t kr = mach_vm_page_info(map, addr, flavor, (vm_page_info_t)&info, &count); check_mach_vm_page_info_outparam_changes(&kr, info, saved_info, count, saved_count); return kr; } static void check_mach_vm_page_query_outparam_changes(kern_return_t * kr, int disposition, int saved_disposition, int ref_count) { if (*kr == KERN_SUCCESS) { /* * There should be no outside references to the memory created for this test */ if (ref_count != 0) { *kr = OUT_PARAM_BAD; } if (disposition == saved_disposition) { *kr = OUT_PARAM_BAD; } } } static kern_return_t call_mach_vm_page_query(MAP_T map, mach_vm_address_t addr) { int disp = INVALID_DISPOSITION_VALUE, ref = 0; int saved_disposition = disp; kern_return_t kr = mach_vm_page_query(map, addr, &disp, &ref); check_mach_vm_page_query_outparam_changes(&kr, disp, saved_disposition, ref); return kr; } #if TEST_OLD_STYLE_MACH static kern_return_t call_vm_map_page_query(MAP_T map, vm_address_t addr) { int disp = INVALID_DISPOSITION_VALUE, ref = 0; int saved_disposition = disp; kern_return_t kr = vm_map_page_query(map, addr, &disp, &ref); check_mach_vm_page_query_outparam_changes(&kr, disp, saved_disposition, ref); return kr; } #endif /* TEST_OLD_STYLE_MACH */ static void check_mach_vm_page_range_query_outparam_changes(kern_return_t * kr, mach_vm_size_t out_count, mach_vm_size_t in_count) { if (out_count != in_count) { *kr = OUT_PARAM_BAD; } } static kern_return_t call_mach_vm_page_range_query(MAP_T map, mach_vm_address_t start, mach_vm_size_t size) { // mach_vm_page_range_query writes one int per page output // and can accept any address range as input // We can't provide that much storage for very large lengths. // Instead we provide a limited output buffer, // write-protect the page after it, and "succeed" if the kernel // fills the buffer and then returns EFAULT. // enough space for MAX_PAGE_RANGE_QUERY with 4KB pages, twice mach_vm_size_t prq_buf_size = 2 * 262144 * sizeof(int); mach_vm_address_t prq_buf = 0; kern_return_t kr = mach_vm_allocate(map, &prq_buf, prq_buf_size + KB16, VM_FLAGS_ANYWHERE); assert(kr == 0); // protect the guard page mach_vm_address_t prq_guard = prq_buf + prq_buf_size; kr = mach_vm_protect(map, prq_guard, KB16, 0, VM_PROT_NONE); assert(kr == 0); // pre-fill the output buffer with an invalid value memset((char *)prq_buf, 0xff, prq_buf_size); mach_vm_size_t in_count = size / KB16 + (size % KB16 ? 1 : 0); mach_vm_size_t out_count = in_count; kr = mach_vm_page_range_query(map, start, size, prq_buf, &out_count); // yes, EFAULT as a kern_return_t because mach_vm_page_range_query returns copyio's error if (kr == EFAULT) { bool bad = false; for (unsigned i = 0; i < prq_buf_size / sizeof(uint32_t); i++) { if (((uint32_t *)prq_buf)[i] == 0xffffffff) { // kernel didn't fill the entire writeable buffer, that's bad bad = true; break; } } if (!bad) { // kernel filled our buffer and then hit our fault page // we'll allow it kr = 0; } } check_mach_vm_page_range_query_outparam_changes(&kr, out_count, in_count); (void)mach_vm_deallocate(map, prq_buf, prq_buf_size + KB16); return kr; } static int call_mincore(void *start, size_t size) { // mincore writes one byte per page output // and can accept any address range as input // We can't provide that much storage for very large lengths. // Instead we provide a limited output buffer, // write-protect the page after it, and "succeed" if the kernel // fills the buffer and then returns EFAULT. // enough space for MAX_PAGE_RANGE_QUERY with 4KB pages, twice size_t mincore_buf_size = 2 * 262144; char *mincore_buf = 0; mincore_buf = mmap(NULL, mincore_buf_size + KB16, PROT_READ | PROT_WRITE, MAP_ANON | MAP_PRIVATE, -1, 0); assert(mincore_buf != MAP_FAILED); // protect the guard page char *mincore_guard = mincore_buf + mincore_buf_size; int err = mprotect(mincore_guard, KB16, PROT_NONE); assert(err == 0); // pre-fill the output buffer with an invalid value memset(mincore_buf, 0xff, mincore_buf_size); int ret; err = mincore(start, size, mincore_buf); if (err == 0) { ret = 0; } else if (errno != EFAULT) { ret = errno; } else { // EFAULT - check if kernel hit our guard page bool bad = false; for (unsigned i = 0; i < mincore_buf_size; i++) { if (mincore_buf[i] == (char)0xff) { // kernel didn't fill the entire writeable buffer, that's bad bad = true; break; } } if (!bad) { // kernel filled our buffer and then hit our guard page // we'll allow it ret = 0; } else { ret = errno; } } (void)munmap(mincore_buf, mincore_buf_size + PAGE_SIZE); return ret; } // TODO: re-enable deferred reclaim tests (rdar://136157720) #if 0 typedef kern_return_t (*fn_mach_vm_deferred_reclamation_buffer_init)(task_t task, mach_vm_address_t address, mach_vm_size_t size); static results_t * test_mach_vm_deferred_reclamation_buffer_init(fn_mach_vm_deferred_reclamation_buffer_init func, const char * testname) { int ret = 0; // Set vm.reclaim_max_threshold to non-zero int orig_reclaim_max_threshold = 0; int new_reclaim_max_threshold = 1; size_t size = sizeof(orig_reclaim_max_threshold); int sysctl_res = sysctlbyname("vm.reclaim_max_threshold", &orig_reclaim_max_threshold, &size, NULL, 0); assert(sysctl_res == 0); sysctl_res = sysctlbyname("vm.reclaim_max_threshold", NULL, 0, &new_reclaim_max_threshold, size); assert(sysctl_res == 0); reclamation_buffer_init_trials_t *trials SMART_RECLAMATION_BUFFER_INIT_TRIALS(); results_t *results = alloc_results(testname, eSMART_RECLAMATION_BUFFER_INIT_TRIALS, trials->count); // reserve last trial to run without modified sysctl for (unsigned i = 0; i < trials->count - 1; i++) { reclamation_buffer_init_trial_t trial = trials->list[i]; ret = func(trial.task, trial.address, trial.size); append_result(results, ret, trial.name); } // run with vm.reclaim_max_threshold = 0 and exercise KERN_NOT_SUPPORTED path new_reclaim_max_threshold = 0; reclamation_buffer_init_trial_t last_trial = trials->list[trials->count - 1]; sysctl_res = sysctlbyname("vm.reclaim_max_threshold", NULL, 0, &new_reclaim_max_threshold, size); assert(sysctl_res == 0); ret = func(last_trial.task, last_trial.address, last_trial.size); if (__improbable(ret == KERN_INVALID_ARGUMENT)) { // Unlikely case when args are rejected before sysctl check. // When this happens during test run, return acceptable, but if this happens // during golden file generation, record the expected value. ret = generate_golden ? KERN_NOT_SUPPORTED : ACCEPTABLE; } append_result(results, ret, last_trial.name); // Revert vm.reclaim_max_threshold to how we found it sysctl_res = sysctlbyname("vm.reclaim_max_threshold", NULL, 0, &orig_reclaim_max_threshold, size); assert(sysctl_res == 0); return results; } #endif // 0 static vm_map_kernel_flags_trials_t * generate_mmap_kernel_flags_trials() { // mmap rejects both ANYWHERE and FIXED | OVERWRITE // so don't set any prefix flags. return generate_prefixed_vm_map_kernel_flags_trials(0, ""); } #define SMART_MMAP_KERNEL_FLAGS_TRIALS() \ __attribute__((cleanup(cleanup_vm_map_kernel_flags_trials))) \ = generate_mmap_kernel_flags_trials() static results_t * test_mmap_with_allocated_vm_map_kernel_flags_t(kern_return_t (*func)(MAP_T map, mach_vm_address_t src, mach_vm_size_t size, int flags), const char * testname) { MAP_T map SMART_MAP; allocation_t base SMART_ALLOCATE_VM(map, TEST_ALLOC_SIZE, VM_PROT_DEFAULT); vm_map_kernel_flags_trials_t * trials SMART_MMAP_KERNEL_FLAGS_TRIALS(); results_t *results = alloc_results(testname, eSMART_MMAP_KERNEL_FLAGS_TRIALS, trials->count); for (unsigned i = 0; i < trials->count; i++) { kern_return_t ret = func(map, base.addr, base.size, trials->list[i].flags); append_result(results, ret, trials->list[i].name); } return results; } // Test a Unix function. // Run each trial with an allocated vm region and a vm_inherit_t typedef int (*unix_with_inherit_fn)(void *start, size_t size, int inherit); static results_t * test_unix_with_allocated_vm_inherit_t(unix_with_inherit_fn fn, const char * testname) { MAP_T map SMART_MAP; allocation_t base SMART_ALLOCATE_VM(map, TEST_ALLOC_SIZE, VM_PROT_DEFAULT); vm_inherit_trials_t *trials SMART_VM_INHERIT_TRIALS(); results_t *results = alloc_results(testname, eSMART_VM_INHERIT_TRIALS, trials->count); for (unsigned i = 0; i < trials->count; i++) { vm_inherit_trial_t trial = trials->list[i]; int ret = fn((void*)(uintptr_t)base.addr, (size_t)base.size, (int)trial.value); append_result(results, ret, trial.name); } return results; } // Test a Unix function. // Run each trial with an allocated vm region and a vm_msync_t typedef int (*unix_with_msync_fn)(void *start, size_t size, int msync_value); static results_t * test_unix_with_allocated_vm_msync_t(unix_with_msync_fn fn, const char * testname) { MAP_T map SMART_MAP; allocation_t base SMART_ALLOCATE_VM(map, TEST_ALLOC_SIZE, VM_PROT_DEFAULT); vm_msync_trials_t *trials SMART_VM_MSYNC_TRIALS(); results_t *results = alloc_results(testname, eSMART_VM_MSYNC_TRIALS, trials->count); for (unsigned i = 0; i < trials->count; i++) { vm_msync_trial_t trial = trials->list[i]; int ret = fn((void*)(uintptr_t)base.addr, (size_t)base.size, (int)trial.value); append_result(results, ret, trial.name); } return results; } // Test a Unix function. // Run each trial with an allocated vm region and an advise typedef int (*unix_with_advise_fn)(void *start, size_t size, int advise); static results_t * test_unix_with_allocated_aligned_vm_advise_t(unix_with_advise_fn fn, mach_vm_size_t align_mask, const char * testname) { MAP_T map SMART_MAP; allocation_t base SMART_ALLOCATE_ALIGNED_VM(map, TEST_ALLOC_SIZE, align_mask, VM_PROT_DEFAULT); vm_advise_trials_t *trials SMART_VM_ADVISE_TRIALS(); results_t *results = alloc_results(testname, eSMART_VM_ADVISE_TRIALS, trials->count); for (unsigned i = 0; i < trials->count; i++) { vm_advise_trial_t trial = trials->list[i]; int ret = fn((void*)(uintptr_t)base.addr, (size_t)base.size, (int)trial.value); append_result(results, ret, trial.name); } return results; } // Rosetta userspace intercepts shared_region_map_and_slide_2_np calls and this Rosetta wrapper // function doesn't have the necessary checks to support invalid input arguments. Skip these trials // intead of crashing the test. static bool shared_region_map_and_slide_would_crash(shared_region_map_and_slide_2_trial_t *trial) { uint32_t files_count = trial->files_count; struct shared_file_np *files = trial->files; uint32_t mappings_count = trial->mappings_count; struct shared_file_mapping_slide_np *mappings = trial->mappings; if (files_count == 0 || files_count == 1 || files_count > _SR_FILE_MAPPINGS_MAX_FILES) { return true; } if (mappings_count == 0 || mappings_count > SFM_MAX) { return true; } if (!files) { return true; } if (!mappings) { return true; } if (mappings_count != (((files_count - 1) * kNumSharedCacheMappings) + 1) && mappings_count != (files_count * kNumSharedCacheMappings)) { return true; } if (files_count >= kMaxSubcaches) { return true; } return false; } typedef int (*unix_shared_region_map_and_slide_2_np)(uint32_t files_coun, const struct shared_file_np *files, uint32_t mappings_count, const struct shared_file_mapping_slide_np *mappings); static results_t * test_unix_shared_region_map_and_slide_2_np(unix_shared_region_map_and_slide_2_np func, const char *testname) { uint64_t dyld_fp = (uint64_t)get_dyld_fd(); shared_region_map_and_slide_2_trials_t *trials SMART_SHARED_REGION_MAP_AND_SLIDE_2_TRIALS(dyld_fp); results_t *results = alloc_results(testname, eSMART_SHARED_REGION_MAP_AND_SLIDE_2_TRIALS, dyld_fp, trials->count); for (unsigned i = 0; i < trials->count; i++) { int ret; shared_region_map_and_slide_2_trial_t trial = trials->list[i]; if (isRosetta() && shared_region_map_and_slide_would_crash(&trial)) { ret = IGNORED; } else { ret = func(trial.files_count, trial.files, trial.mappings_count, trial.mappings); } append_result(results, ret, trial.name); } close_dyld_fd(); return results; } static results_t * test_dst_size_fileoff(kern_return_t (*func)(MAP_T map, mach_vm_address_t dst, mach_vm_size_t size, mach_vm_address_t fileoff), const char * testname) { MAP_T map SMART_MAP; src_dst_size_trials_t * trials SMART_FILEOFF_DST_SIZE_TRIALS(); results_t *results = alloc_results(testname, eSMART_FILEOFF_DST_SIZE_TRIALS, trials->count); for (unsigned i = 0; i < trials->count; i++) { src_dst_size_trial_t trial = trials->list[i]; unallocation_t dst_base SMART_UNALLOCATE_VM(map, TEST_ALLOC_SIZE); // src a.k.a. mmap fileoff doesn't slide trial = slide_trial_dst(trial, dst_base.addr); int ret = func(map, trial.dst, trial.size, trial.src); append_result(results, ret, trial.name); } return results; } // Try to allocate a destination for mmap(MAP_FIXED) to overwrite. // On exit: // *out_dst *out_size are the allocation, or 0 // *out_panic is true if the trial should stop and record PANIC // (because the trial specifies an absolute address that is already occupied) // *out_slide is true if the trial should slide by *out_dst static __attribute__((overloadable)) void allocate_for_mmap_fixed(MAP_T map, mach_vm_address_t trial_dst, mach_vm_size_t trial_size, bool trial_dst_is_absolute, bool trial_size_is_absolute, mach_vm_address_t *out_dst, mach_vm_size_t *out_size, bool *out_panic, bool *out_slide) { *out_panic = false; *out_slide = false; if (trial_dst_is_absolute && trial_size_is_absolute) { // known dst addr, known size *out_dst = trial_dst; *out_size = trial_size; kern_return_t kr = mach_vm_allocate(map, out_dst, *out_size, VM_FLAGS_FIXED); if (kr == KERN_NO_SPACE) { // this space is in use, we can't allow mmap to try to overwrite it *out_panic = true; *out_dst = 0; *out_size = 0; } else if (kr != 0) { // some other error, assume mmap will also fail *out_dst = 0; *out_size = 0; } // no slide, trial and allocation are already at the same place *out_slide = false; } else { // other cases either fit in a small allocation or fail *out_dst = 0; *out_size = TEST_ALLOC_SIZE; kern_return_t kr = mach_vm_allocate(map, out_dst, *out_size, VM_FLAGS_ANYWHERE); if (kr != 0) { // allocation error, assume mmap will also fail *out_dst = 0; *out_size = 0; } *out_slide = true; } } static __attribute__((overloadable)) void allocate_for_mmap_fixed(MAP_T map, start_size_trial_t trial, mach_vm_address_t *out_dst, mach_vm_size_t *out_size, bool *out_panic, bool *out_slide) { allocate_for_mmap_fixed(map, trial.start, trial.size, trial.start_is_absolute, trial.size_is_absolute, out_dst, out_size, out_panic, out_slide); } static __attribute__((overloadable)) void allocate_for_mmap_fixed(MAP_T map, src_dst_size_trial_t trial, mach_vm_address_t *out_dst, mach_vm_size_t *out_size, bool *out_panic, bool *out_slide) { allocate_for_mmap_fixed(map, trial.dst, trial.size, trial.dst_is_absolute, !trial.size_is_dst_relative, out_dst, out_size, out_panic, out_slide); } // Like test_dst_size_fileoff, but specialized for mmap(MAP_FIXED). // mmap(MAP_FIXED) is destructive, forcibly unmapping anything // already at that address. // We must ensure that each trial is either obviously invalid and caught // by the sanitizers, or is valid and overwrites an allocation we control. static results_t * test_fixed_dst_size_fileoff(kern_return_t (*func)(MAP_T map, mach_vm_address_t dst, mach_vm_size_t size, mach_vm_address_t fileoff), const char * testname) { MAP_T map SMART_MAP; src_dst_size_trials_t * trials SMART_FILEOFF_DST_SIZE_TRIALS(); results_t *results = alloc_results(testname, eSMART_FILEOFF_DST_SIZE_TRIALS, trials->count); for (unsigned i = 0; i < trials->count; i++) { src_dst_size_trial_t trial = trials->list[i]; // Try to create an allocation for mmap to overwrite. mach_vm_address_t dst_alloc; mach_vm_size_t dst_size; bool should_panic; bool should_slide_trial; allocate_for_mmap_fixed(map, trial, &dst_alloc, &dst_size, &should_panic, &should_slide_trial); if (should_panic) { append_result(results, PANIC, trial.name); continue; } if (should_slide_trial) { // src a.k.a. mmap fileoff doesn't slide trial = slide_trial_dst(trial, dst_alloc); } kern_return_t ret = func(map, trial.dst, trial.size, trial.src); if (dst_alloc != 0) { (void)mach_vm_deallocate(map, dst_alloc, dst_size); } append_result(results, ret, trial.name); } return results; } // Like test_mach_with_allocated_start_size, but specialized for mmap(MAP_FIXED). // See test_fixed_dst_size_fileoff for more. static results_t * test_fixed_dst_size(kern_return_t (*func)(MAP_T map, mach_vm_address_t dst, mach_vm_size_t size), const char *testname) { MAP_T map SMART_MAP; start_size_trials_t *trials SMART_START_SIZE_TRIALS(0); // no base addr results_t *results = alloc_results(testname, eSMART_START_SIZE_TRIALS, 0, trials->count); for (unsigned i = 0; i < trials->count; i++) { start_size_trial_t trial = trials->list[i]; // Try to create an allocation for mmap to overwrite. mach_vm_address_t dst_alloc; mach_vm_size_t dst_size; bool should_panic; bool should_slide_trial; allocate_for_mmap_fixed(map, trial, &dst_alloc, &dst_size, &should_panic, &should_slide_trial); if (should_panic) { append_result(results, PANIC, trial.name); continue; } if (should_slide_trial) { trial = slide_trial(trial, dst_alloc); } kern_return_t ret = func(map, trial.start, trial.size); if (dst_alloc != 0) { (void)mach_vm_deallocate(map, dst_alloc, dst_size); } append_result(results, ret, trial.name); } return results; } static results_t * test_allocated_src_allocated_dst_size(kern_return_t (*func)(MAP_T map, mach_vm_address_t src, mach_vm_size_t size, mach_vm_address_t dst), const char * testname) { /* * Require src < dst. Some tests may get different error codes if src > dst. * * (No actual examples are known today, but see the comment in * test_allocated_src_unallocated_dst_size for an example in that * function. Here we are being conservatively careful.) * * TODO: test both src < dst and src > dst. */ MAP_T map SMART_MAP; allocation_t src_base SMART_ALLOCATE_VM(map, TEST_ALLOC_SIZE, VM_PROT_DEFAULT); allocation_t dst_base SMART_ALLOCATE_VM_AFTER(map, src_base.addr, TEST_ALLOC_SIZE, VM_PROT_DEFAULT); assert(src_base.addr < dst_base.addr); src_dst_size_trials_t * trials SMART_SRC_DST_SIZE_TRIALS(); results_t *results = alloc_results(testname, eSMART_SRC_DST_SIZE_TRIALS, 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, trial.size, trial.dst); // func should be fixed-overwrite, nothing new to deallocate append_result(results, ret, trial.name); } return results; } static task_exc_guard_behavior_t saved_exc_guard_behavior; static void disable_exc_guard() { T_SETUPBEGIN; // Disable EXC_GUARD for the duration of the test. // We restore it at the end. kern_return_t kr = task_get_exc_guard_behavior(mach_task_self(), &saved_exc_guard_behavior); assert(kr == 0); kr = task_set_exc_guard_behavior(mach_task_self(), TASK_EXC_GUARD_NONE); if (kr) { T_LOG("warning, couldn't disable EXC_GUARD; some tests are disabled"); EXC_GUARD_ENABLED = true; } else { EXC_GUARD_ENABLED = false; } T_SETUPEND; } static void restore_exc_guard() { // restore process's EXC_GUARD handling (void)task_set_exc_guard_behavior(mach_task_self(), saved_exc_guard_behavior); } static int set_disable_vm_sanitize_telemetry_via_sysctl(uint32_t val) { int ret = sysctlbyname("debug.disable_vm_sanitize_telemetry", NULL, NULL, &val, sizeof(uint32_t)); if (ret != 0) { printf("sysctl failed with errno %d.\n", errno); } return ret; } static int disable_vm_sanitize_telemetry(void) { return set_disable_vm_sanitize_telemetry_via_sysctl(1); } static int reenable_vm_sanitize_telemetry(void) { return set_disable_vm_sanitize_telemetry_via_sysctl(0); } #define MAX_LINE_LENGTH 100 #define MAX_NUM_TESTS 350 #define TMP_DIR "/tmp/" #define ASSETS_DIR "../assets/vm_parameter_validation/" #define DECOMPRESS ASSETS_DIR "decompress.sh" #define GOLDEN_FILE TMP_DIR "user_golden_image.log" #define KERN_GOLDEN_FILE TMP_DIR "kern_golden_image.log" static results_t *golden_list[MAX_NUM_TESTS]; static results_t *kern_list[MAX_NUM_TESTS]; static uint32_t num_tests = 0; // num of tests in golden_list static uint32_t num_kern_tests = 0; // num of tests in kern_list #define FILL_TRIALS_NAMES_AND_CONTINUE(results, trials, t_count) { \ for (unsigned i = 0; i < t_count; i++) { \ /* trials names are free'd in dealloc_results() */ \ (results)->list[i].name = kstrdup((trials)->list[i].name); \ } \ } #define FILL_TRIALS_NAMES(results, trials) { \ unsigned t_count = ((trials)->count < (results)->count) ? (trials)->count : (results)->count; \ if ((trials)->count != (results)->count) { \ T_LOG("%s:%d Trials count mismatch, expected %u, golden file %u\n", \ __func__, __LINE__, (trials)->count, (results)->count); \ }\ FILL_TRIALS_NAMES_AND_CONTINUE((results), (trials), (t_count)) \ break; \ } static void fill_golden_trials(uint64_t trialsargs[static TRIALSARGUMENTS_SIZE], results_t *results) { trialsformula_t formula = results->trialsformula; uint64_t trialsargs0 = trialsargs[0]; uint64_t trialsargs1 = trialsargs[1]; switch (formula) { case eUNKNOWN_TRIALS: // Leave them empty T_FAIL("Golden file with unknown trials, testname: %s\n", results->testname); break; case eSMART_VM_MAP_KERNEL_FLAGS_TRIALS: { vm_map_kernel_flags_trials_t * trials SMART_VM_MAP_KERNEL_FLAGS_TRIALS(); FILL_TRIALS_NAMES(results, trials); } case eSMART_VM_INHERIT_TRIALS: { vm_inherit_trials_t *trials SMART_VM_INHERIT_TRIALS(); FILL_TRIALS_NAMES(results, trials); } case eSMART_MMAP_KERNEL_FLAGS_TRIALS: { vm_map_kernel_flags_trials_t * trials SMART_MMAP_KERNEL_FLAGS_TRIALS(); FILL_TRIALS_NAMES(results, trials); } case eSMART_MMAP_FLAGS_TRIALS: { mmap_flags_trials_t *trials SMART_MMAP_FLAGS_TRIALS(); FILL_TRIALS_NAMES(results, trials); } case eSMART_GENERIC_FLAG_TRIALS: { generic_flag_trials_t *trials SMART_GENERIC_FLAG_TRIALS(); FILL_TRIALS_NAMES(results, trials); } case eSMART_VM_TAG_TRIALS: { // special case, trails (vm_tag_trials_values) depend on data only available on KERNEL vm_tag_trials_t *trials SMART_VM_TAG_TRIALS(); FILL_TRIALS_NAMES(results, trials); } case eSMART_VM_PROT_TRIALS: { vm_prot_trials_t *trials SMART_VM_PROT_TRIALS(); FILL_TRIALS_NAMES(results, trials); } case eSMART_VM_PROT_PAIR_TRIALS: { vm_prot_pair_trials_t *trials SMART_VM_PROT_PAIR_TRIALS(); FILL_TRIALS_NAMES(results, trials); } case eSMART_LEDGER_TAG_TRIALS: { ledger_tag_trials_t *trials SMART_LEDGER_TAG_TRIALS(); FILL_TRIALS_NAMES(results, trials); } case eSMART_LEDGER_FLAG_TRIALS: { ledger_flag_trials_t *trials SMART_LEDGER_FLAG_TRIALS(); FILL_TRIALS_NAMES(results, trials); } case eSMART_ADDR_TRIALS: { addr_trials_t *trials SMART_ADDR_TRIALS(trialsargs0); if (trialsargs1) { // Special case with an additional trial such that obj_size + addr == 0 FILL_TRIALS_NAMES_AND_CONTINUE(results, trials, trials->count); assert(trials->count + 1 == results->count); char *trial_desc; kasprintf(&trial_desc, "addr: -0x%llx", trialsargs1); results->list[results->count - 1].name = kstrdup(trial_desc); kfree_str(trial_desc); break; } else { FILL_TRIALS_NAMES(results, trials); } } case eSMART_SIZE_TRIALS: { size_trials_t *trials SMART_SIZE_TRIALS(); FILL_TRIALS_NAMES(results, trials); } case eSMART_START_SIZE_TRIALS: { // NB: base.addr is not constant between runs but doesn't affect trial name start_size_trials_t *trials SMART_START_SIZE_TRIALS(trialsargs0); FILL_TRIALS_NAMES(results, trials); } case eSMART_START_SIZE_OFFSET_OBJECT_TRIALS: { start_size_offset_object_trials_t *trials SMART_START_SIZE_OFFSET_OBJECT_TRIALS(); FILL_TRIALS_NAMES(results, trials); } case eSMART_START_SIZE_OFFSET_TRIALS: { start_size_offset_trials_t *trials SMART_START_SIZE_OFFSET_TRIALS(); FILL_TRIALS_NAMES(results, trials); } case eSMART_SIZE_SIZE_TRIALS: { T_FAIL("SIZE_SIZE_TRIALS not used\n"); break; } case eSMART_SRC_DST_SIZE_TRIALS: { src_dst_size_trials_t * trials SMART_SRC_DST_SIZE_TRIALS(); FILL_TRIALS_NAMES(results, trials); } case eSMART_FILEOFF_DST_SIZE_TRIALS: { src_dst_size_trials_t * trials SMART_FILEOFF_DST_SIZE_TRIALS(); FILL_TRIALS_NAMES(results, trials); } case eSMART_VM_BEHAVIOR_TRIALS: { vm_behavior_trials_t *trials SMART_VM_BEHAVIOR_TRIALS(); FILL_TRIALS_NAMES(results, trials); } case eSMART_VM_ADVISE_TRIALS: { vm_advise_trials_t *trials SMART_VM_ADVISE_TRIALS(); FILL_TRIALS_NAMES(results, trials); } case eSMART_VM_SYNC_TRIALS: { vm_sync_trials_t *trials SMART_VM_SYNC_TRIALS(); FILL_TRIALS_NAMES(results, trials); } case eSMART_VM_MSYNC_TRIALS: { vm_msync_trials_t *trials SMART_VM_MSYNC_TRIALS(); FILL_TRIALS_NAMES(results, trials); } case eSMART_VM_MACHINE_ATTRIBUTE_TRIALS: { vm_machine_attribute_trials_t *trials SMART_VM_MACHINE_ATTRIBUTE_TRIALS(); FILL_TRIALS_NAMES(results, trials); } case eSMART_VM_PURGEABLE_AND_STATE_TRIALS: { vm_purgeable_and_state_trials_t *trials SMART_VM_PURGEABLE_AND_STATE_TRIALS(); FILL_TRIALS_NAMES(results, trials); } case eSMART_START_SIZE_START_SIZE_TRIALS: { start_size_start_size_trials_t *trials SMART_START_SIZE_START_SIZE_TRIALS(); FILL_TRIALS_NAMES(results, trials); } case eSMART_SHARED_REGION_MAP_AND_SLIDE_2_TRIALS: { shared_region_map_and_slide_2_trials_t *trials SMART_SHARED_REGION_MAP_AND_SLIDE_2_TRIALS(trialsargs0); FILL_TRIALS_NAMES(results, trials); } case eSMART_RECLAMATION_BUFFER_INIT_TRIALS: { #if 0 reclamation_buffer_init_trials_t * trials SMART_RECLAMATION_BUFFER_INIT_TRIALS(); FILL_TRIALS_NAMES(results, trials); #else break; #endif } default: T_FAIL("New formula %u, args %llu %llu, update fill_golden_trials, testname: %s\n", formula, trialsargs[0], trialsargs[1], results->testname); } } // Number of test trials with ret == OUT_PARAM_BAD int out_param_bad_count = 0; static results_t * test_name_to_golden_results(const char* testname) { results_t *golden_results = NULL; results_t *golden_results_found = NULL; for (uint32_t x = 0; x < num_tests; x++) { golden_results = golden_list[x]; if (strncmp(golden_results->testname, testname, strlen(testname)) == 0) { golden_results->tested_count += 1; golden_results_found = golden_results; break; } } return golden_results_found; } static void dump_results_list(results_t *res_list[], uint32_t res_num_tests) { for (uint32_t x = 0; x < res_num_tests; x++) { results_t *results = res_list[x]; testprintf("\t[%u] %s (%u)\n", x, results->testname, results->count); } } static void dump_golden_list() { testprintf("======\n"); testprintf("golden_list %p, num_tests %u\n", golden_list, num_tests); dump_results_list(golden_list, num_tests); testprintf("======\n"); } static void dump_kernel_results_list() { testprintf("======\n"); testprintf("kernel_results_list %p, num_tests %u\n", kern_list, num_kern_tests); dump_results_list(kern_list, num_kern_tests); testprintf("======\n"); } // Read results written by dump_golden_results(). static int populate_golden_results(const char *filename) { FILE *file; char line[MAX_LINE_LENGTH]; char trial_formula[20]; results_t *results = NULL; trialsformula_t formula = eUNKNOWN_TRIALS; uint64_t trial_args[TRIALSARGUMENTS_SIZE] = {0, 0}; uint32_t num_results = 0; uint32_t result_number = 0; int result_ret = 0; char *test_name = NULL; char *sub_line = NULL; char *s_num_results = NULL; bool in_test = FALSE; out_param_bad_count = 0; kern_trialname_generation = strnstr(filename, "kern_golden_image", strlen(filename)) != NULL; // cd to the directory containing this executable // Test files are located relative to there. uint32_t exesize = 0; _NSGetExecutablePath(NULL, &exesize); char *exe = malloc(exesize); assert(exe != NULL); _NSGetExecutablePath(exe, &exesize); char *dir = dirname(exe); chdir(dir); free(exe); file = fopen(filename, "r"); if (file == NULL) { T_FAIL("Could not open file %s\n", filename); return 1; } // Read file line by line while (fgets(line, MAX_LINE_LENGTH, file) != NULL) { // Check if the line starts with "TESTNAME" or "RESULT COUNT" if (strncmp(line, TESTNAME_DELIMITER, strlen(TESTNAME_DELIMITER)) == 0) { // remove the newline char line[strcspn(line, "\n")] = 0; sub_line = line + strlen(TESTNAME_DELIMITER); test_name = strdup(sub_line); formula = eUNKNOWN_TRIALS; trial_args[0] = TRIALSARGUMENTS_NONE; trial_args[1] = TRIALSARGUMENTS_NONE; // T_LOG("TESTNAME %u : %s", num_tests, test_name); in_test = TRUE; } else if (in_test && strncmp(line, TRIALSFORMULA_DELIMITER, strlen(TRIALSFORMULA_DELIMITER)) == 0) { sscanf(line, "%*s %s %*s %llu,%llu,%llu", trial_formula, &trial_args[0], &trial_args[1], &trial_page_size); formula = trialsformula_from_string(trial_formula); } else if (in_test && strncmp(line, RESULTCOUNT_DELIMITER, strlen(RESULTCOUNT_DELIMITER)) == 0) { assert(num_tests < MAX_NUM_TESTS); s_num_results = line + strlen(RESULTCOUNT_DELIMITER); num_results = (uint32_t)strtoul(s_num_results, NULL, 10); results = alloc_results(test_name, formula, trial_args, TRIALSARGUMENTS_SIZE, num_results); assert(results); results->count = num_results; fill_golden_trials(trial_args, results); golden_list[num_tests++] = results; // T_LOG("num_tests %u, testname %s, count: %u", num_tests, results->testname, results->count); } else if (in_test && strncmp(line, TESTRESULT_DELIMITER, strlen(TESTRESULT_DELIMITER)) == 0) { sscanf(line, "%d: %d", &result_number, &result_ret); assert(result_number < num_results); // T_LOG("\tresult #%u: %d\n", result_number, result_ret); results->list[result_number].ret = result_ret; if (result_ret == OUT_PARAM_BAD) { out_param_bad_count += 1; T_FAIL("Out parameter violation in test %s - %s\n", results->testname, results->list[result_number].name); } } else { // T_LOG("Unknown line: %s\n", line); in_test = FALSE; } } fclose(file); if (!out_param_bad_count) { dump_golden_list(); } kern_trialname_generation = FALSE; return out_param_bad_count; } static void clean_golden_results() { for (uint32_t x = 0; x < num_tests; ++x) { if (golden_list[x]->tested_count == 0) { T_LOG("WARN: Test %s found in golden file but no test with that name was run\n", golden_list[x]->testname); } if (golden_list[x]->tested_count > 1) { T_LOG("WARN: Test %s found in golden file with %d runs\n", golden_list[x]->testname, golden_list[x]->tested_count); } dealloc_results(golden_list[x]); golden_list[x] = NULL; } } static void clean_kernel_results() { for (uint32_t x = 0; x < num_kern_tests; ++x) { dealloc_results(kern_list[x]); kern_list[x] = NULL; } } // buffer to output userspace golden file results (using same size as the kern buffer) static const int64_t GOLDEN_OUTPUT_BUFFER_SIZE = SYSCTL_OUTPUT_BUFFER_SIZE; static char* GOLDEN_OUTPUT_START; static char* GOLDEN_OUTPUT_BUF; static char* GOLDEN_OUTPUT_END; void goldenprintf(const char *format, ...) { if (!GOLDEN_OUTPUT_START) { GOLDEN_OUTPUT_START = calloc(GOLDEN_OUTPUT_BUFFER_SIZE, 1); GOLDEN_OUTPUT_BUF = GOLDEN_OUTPUT_START; GOLDEN_OUTPUT_END = GOLDEN_OUTPUT_BUF + GOLDEN_OUTPUT_BUFFER_SIZE; } int printed; ssize_t s_buffer_size = GOLDEN_OUTPUT_END - GOLDEN_OUTPUT_BUF; assert(s_buffer_size > 0 && s_buffer_size <= GOLDEN_OUTPUT_BUFFER_SIZE); size_t buffer_size = (size_t)s_buffer_size; va_list args; va_start(args, format); printed = vsnprintf(GOLDEN_OUTPUT_BUF, buffer_size, format, args); va_end(args); assert(printed >= 0); assert((unsigned)printed < buffer_size - 1); assert(GOLDEN_OUTPUT_BUF + printed + 1 < GOLDEN_OUTPUT_END); GOLDEN_OUTPUT_BUF += printed; } // Knobs controlled by environment variables // Verbose output in dump_results, controlled by DUMP_RESULTS env. static bool dump = FALSE; // Output to create a golden test result, controlled by GENERATE_GOLDEN_IMAGE. static bool generate_golden = FALSE; // Read existing golden file and print its contents in verbose format (like dump_results). Controlled by DUMP_GOLDEN_IMAGE. static bool dump_golden = FALSE; // Run tests as tests (i.e. emit TS_{PASS/FAIL}), enabled unless golden image generation is true. static bool should_test_results = TRUE; static void read_env() { dump = (getenv("DUMP_RESULTS") != NULL); dump_golden = (getenv("DUMP_GOLDEN_IMAGE") != NULL); // Shouldn't do both generate_golden = (getenv("GENERATE_GOLDEN_IMAGE") != NULL) && !dump_golden; // Only test when no other golden image flag is set should_test_results = (getenv("SKIP_TESTS") == NULL) && !dump_golden && !generate_golden; } // Comparator function for sorting result_t list by name static int compare_names(const void *a, const void *b) { assert(((const result_t *)a)->name); assert(((const result_t *)b)->name); return strcmp(((const result_t *)a)->name, ((const result_t *)b)->name); } static unsigned binary_search(result_t *list, unsigned count, const result_t *trial) { const char *name = trial->name; unsigned left = 0, right = count; while (left < right) { // Range [left, right) is to be searched. unsigned mid = left + (right - left) / 2; int cmp = strcmp(list[mid].name, name); if (cmp == 0) { return mid; } else if (cmp < 0) { // Narrow search to [mid + 1, right). left = mid + 1; } else { // Narrow search to [left, mid). right = mid; } } return UINT_MAX; // Not found } static inline bool trial_name_equals(const result_t *a, const result_t *b) { // NB: strlen match need to handle cases where a shorter 'bname' would match a longer 'aname'. if (strlen(a->name) == strlen(b->name) && compare_names(a, b) == 0) { return true; } return false; } static const result_t * get_golden_result(results_t *golden_results, const result_t *trial, unsigned trial_idx) { if (golden_results->trialsformula == eUNKNOWN_TRIALS) { // golden results don't contain trials names T_LOG("%s: update test's alloc_results to have a valid trialsformula_t\n", golden_results->testname); return NULL; } if (trial_idx < golden_results->count && golden_results->list[trial_idx].name && trial_name_equals(&golden_results->list[trial_idx], trial)) { // "fast search" path taken when golden file is in sync to test. return &golden_results->list[trial_idx]; } // "slow search" path taken when tests idxs are not aligned. Sort the array // by name and do binary search. qsort(golden_results->list, golden_results->count, sizeof(result_t), compare_names); unsigned g_idx = binary_search(golden_results->list, golden_results->count, trial); if (g_idx < golden_results->count) { return &golden_results->list[g_idx]; } return NULL; } static void test_results(results_t *golden_results, results_t *results) { bool passed = TRUE; unsigned result_count = results->count; unsigned acceptable_count = 0; const unsigned acceptable_max = 16; // log up to this many ACCEPTABLE results const result_t *golden_result = NULL; if (golden_results->count != results->count) { if (results->kernel_buffer_full) { T_FAIL("%s: number of iterations mismatch (wanted %u, got %u) " "(kernel output buffer full)", results->testname, golden_results->count, results->count); passed = FALSE; } else { T_LOG("%s: number of iterations mismatch (wanted %u, got %u)", results->testname, golden_results->count, results->count); } } for (unsigned i = 0; i < result_count; i++) { golden_result = get_golden_result(golden_results, &results->list[i], i); if (golden_result) { if (results->list[i].ret == ACCEPTABLE) { // trial has declared itself to be correct // no matter what the golden result is acceptable_count++; if (acceptable_count <= acceptable_max) { T_LOG("%s RESULT ACCEPTABLE (expected %d), %s\n", results->testname, golden_result->ret, results->list[i].name); } } else if (results->list[i].ret != golden_result->ret) { T_FAIL("%s RESULT %d (expected %d), %s\n", results->testname, results->list[i].ret, golden_result->ret, results->list[i].name); passed = FALSE; } } else { /* * This trial is not present in the golden results. * * This may be caused by new tests that require * updates to the golden results. * Or this may be caused by the last trial name being * truncated when the kernel's output buffer is full. * (Or both at once, in which case we only complain * about one of them.) */ const char *suggestion; if (results->kernel_buffer_full && i == results->count - 1) { suggestion = "kernel test output buffer is full"; } else { suggestion = "regenerate golden files to fix this"; } T_FAIL("%s NEW RESULT %d, %s -- %s\n", results->testname, results->list[i].ret, results->list[i].name, suggestion); passed = FALSE; } } if (acceptable_count > acceptable_max) { T_LOG("%s %u more RESULT ACCEPTABLE trials not logged\n", results->testname, acceptable_count - acceptable_max); } if (passed) { T_PASS("%s passed\n", results->testname); } } static results_t * process_results(results_t *results) { results_t *golden_results = NULL; if (dump && !generate_golden) { __dump_results(results); } if (generate_golden) { dump_golden_results(results); } if (should_test_results) { golden_results = test_name_to_golden_results(results->testname); if (golden_results) { test_results(golden_results, results); } else { T_FAIL("New test %s found, update golden list to allow return code testing", results->testname); // Dump results if not done previously if (!dump) { __dump_results(results); } } } return results; } T_DECL(vm_parameter_validation_user, "parameter validation for userspace calls", T_META_SPAWN_TOOL(DECOMPRESS), T_META_SPAWN_TOOL_ARG("user"), T_META_SPAWN_TOOL_ARG(TMP_DIR), T_META_SPAWN_TOOL_ARG(GOLDEN_FILES_VERSION), T_META_SPAWN_TOOL_ARG(GOLDEN_FILES_ARCH) ) { if (disable_vm_sanitize_telemetry() != 0) { T_FAIL("Could not disable VM API telemetry. Bailing out early."); return; } read_env(); T_LOG("dump %d, golden %d, dump_golden %d, test %d\n", dump, generate_golden, dump_golden, should_test_results); if (generate_golden && unsigned_code_is_disallowed()) { // Some test results change when SIP is enabled. // Golden files must record the SIP-disabled values. T_FAIL("Can't generate golden files with SIP enabled. Disable SIP and try again.\n"); return; } if ((dump_golden || should_test_results) && populate_golden_results(GOLDEN_FILE)) { // bail out early, problem loading golden test results T_FAIL("Could not load golden file '%s'\n", GOLDEN_FILE); return; } set_up_guard_page(); disable_exc_guard(); if (dump_golden) { // just print the parsed golden file for (uint32_t x = 0; x < num_tests; ++x) { __dump_results(golden_list[x]); } goto out; } /* * -- memory entry functions -- * The memory entry test functions use macros to generate each flavor of memory entry function. * This is partially becauseof many entrypoints (mach_make_memory_entry/mach_make_memory_entry_64/mach_make_memory_entry) * and partially because many flavors of each function are called (copy/memonly/share/...). */ // Mach start/size with both old-style and new-style types // (co-located so old and new can be compared more easily) #define RUN_NEW(fn, name) dealloc_results(process_results(test_mach_with_allocated_start_size(fn, name " (start/size)"))) #if TEST_OLD_STYLE_MACH #define RUN_OLD(fn, name) dealloc_results(process_results(test_oldmach_with_allocated_start_size(fn, name " (start/size)"))) #define RUN_OLD64(fn, name) RUN_NEW(fn, name) #else #define RUN_OLD(fn, name) do {} while (0) #define RUN_OLD64(fn, name) do {} while (0) #endif // mach_make_memory_entry has up to three entry points on U32, unlike other functions that have two RUN_NEW(call_mach_make_memory_entry_64__start_size__copy, "mach_make_memory_entry_64 (copy)"); RUN_OLD(call_mach_make_memory_entry__start_size__copy, "mach_make_memory_entry (copy)"); RUN_OLD64(call__mach_make_memory_entry__start_size__copy, "_mach_make_memory_entry (copy)"); RUN_NEW(call_mach_make_memory_entry_64__start_size__memonly, "mach_make_memory_entry_64 (mem_only)"); RUN_OLD(call_mach_make_memory_entry__start_size__memonly, "mach_make_memory_entry (mem_only)"); RUN_OLD64(call__mach_make_memory_entry__start_size__memonly, "_mach_make_memory_entry (mem_only)"); RUN_NEW(call_mach_make_memory_entry_64__start_size__namedcreate, "mach_make_memory_entry_64 (named_create)"); RUN_OLD(call_mach_make_memory_entry__start_size__namedcreate, "mach_make_memory_entry (named_create)"); RUN_OLD64(call__mach_make_memory_entry__start_size__namedcreate, "_mach_make_memory_entry (named_create)"); RUN_NEW(call_mach_make_memory_entry_64__start_size__share, "mach_make_memory_entry_64 (share)"); RUN_OLD(call_mach_make_memory_entry__start_size__share, "mach_make_memory_entry (share)"); RUN_OLD64(call__mach_make_memory_entry__start_size__share, "_mach_make_memory_entry (share)"); RUN_NEW(call_mach_make_memory_entry_64__start_size__namedreuse, "mach_make_memory_entry_64 (named_reuse)"); RUN_OLD(call_mach_make_memory_entry__start_size__namedreuse, "mach_make_memory_entry (named_reuse)"); RUN_OLD64(call__mach_make_memory_entry__start_size__namedreuse, "_mach_make_memory_entry (named_reuse)"); #undef RUN_NEW #undef RUN_OLD #undef RUN_OLD64 #define RUN(fn, name) dealloc_results(process_results(test_mach_with_size(fn, name " (size)"))) RUN(call_mach_memory_object_memory_entry_64__size, "mach_memory_object_memory_entry_64"); RUN(call_replacement_mach_memory_object_memory_entry__size, "mach_memory_object_memory_entry"); #undef RUN #define RUN_NEW(fn, name) dealloc_results(process_results(test_mach_with_allocated_vm_prot_t(fn, name " (vm_prot_t)"))) #define RUN_OLD(fn, name) dealloc_results(process_results(test_oldmach_with_allocated_vm_prot_t(fn, name " (vm_prot_t)"))) #define RUN_OLD64(fn, name) RUN_NEW(fn, name) RUN_NEW(call_mach_make_memory_entry_64__vm_prot, "mach_make_memory_entry_64"); #if TEST_OLD_STYLE_MACH RUN_OLD(call_mach_make_memory_entry__vm_prot, "mach_make_memory_entry"); RUN_OLD64(call__mach_make_memory_entry__vm_prot, "_mach_make_memory_entry"); #endif #undef RUN_NEW #undef RUN_OLD #undef RUN_OLD64 #define RUN(fn, name) dealloc_results(process_results(test_mach_vm_prot(fn, name " (vm_prot_t)"))) RUN(call_mach_memory_object_memory_entry_64__vm_prot, "mach_memory_object_memory_entry_64"); RUN(call_replacement_mach_memory_object_memory_entry__vm_prot, "mach_memory_object_memory_entry"); #undef RUN #define RUN(fn, name) dealloc_results(process_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(process_results(test_mach_with_ledger_flag(fn, name " (ledger flag)"))) RUN(call_mach_memory_entry_ownership__ledger_flag, "mach_memory_entry_ownership"); #undef RUN /* * -- allocate/deallocate functions -- */ #define RUN(fn, name) dealloc_results(process_results(test_mach_allocation_func_with_start_size(fn, name))) RUN(call_mach_vm_allocate__start_size_fixed, "mach_vm_allocate (fixed) (realigned start/size)"); RUN(call_mach_vm_allocate__start_size_anywhere, "mach_vm_allocate (anywhere) (hint/size)"); #undef RUN #define RUN(fn, name) dealloc_results(process_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"); #undef RUN dealloc_results(process_results(test_deallocator(call_mach_vm_deallocate, "mach_vm_deallocate (start/size)"))); #if TEST_OLD_STYLE_MACH dealloc_results(process_results(test_deallocator(call_vm_deallocate, "vm_deallocate (start/size)"))); #endif #define RUN(fn, name) dealloc_results(process_results(test_deallocator(fn, name " (start/size)"))) RUN(call_munmap, "munmap"); #undef RUN /* * -- map/unmap functions -- * The map/unmap functions use multiple layers of macros. * The macros are used both for function generation (see IMPL_ONE_FROM_HELPER) and to call all of those. * This was written this way to further avoid lots of code duplication, as the map/remap functions * have many different parameter combinations we want to test. */ // map tests #define RUN_START_SIZE(fn, name) dealloc_results(process_results(test_mach_with_allocated_start_size(fn, name " (realigned start/size)"))) #define RUN_HINT_SIZE(fn, name) dealloc_results(process_results(test_mach_with_allocated_start_size(fn, name " (hint/size)"))) #define RUN_PROT_PAIR(fn, name) dealloc_results(process_results(test_mach_vm_prot_pair(fn, name " (prot_pairs)"))) #define RUN_INHERIT(fn, name) dealloc_results(process_results(test_mach_with_allocated_vm_inherit_t(fn, name " (vm_inherit_t)"))) #define RUN_FLAGS(fn, name) dealloc_results(process_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(process_results(test_mach_with_allocated_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); #if TEST_OLD_STYLE_MACH RUN_ALL(vm_map_64_retyped, vm_map_64); RUN_ALL(vm_map_retyped, vm_map); #endif #undef RUN_ALL #undef RUN_START_SIZE #undef RUN_HINT_SIZE #undef RUN_PROT_PAIR #undef RUN_INHERIT #undef RUN_FLAGS #undef RUN_SSOO // remap tests #define FN_NAME(fn, variant, type) call_ ## fn ## __ ## variant ## __ ## type #define RUN_HELPER(harness, fn, variant, type, type_name, name) dealloc_results(process_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, dst, variant, type_name, name) RUN_HELPER(test_allocated_src_##dst##_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, allocated, fixed, "src/dst/size", name); \ RUN_SRC_DST_SIZE(fn, allocated, fixed_copy, "src/dst/size", name); \ RUN_SRC_DST_SIZE(fn, unallocated, anywhere, "src/dst/size", name); \ RUN_ALL(mach_vm_remap_user, "realigned ", mach_vm_remap); RUN_ALL(mach_vm_remap_new_user, , mach_vm_remap_new); #if TEST_OLD_STYLE_MACH RUN_ALL(vm_remap_retyped, "realigned ", vm_remap); #endif #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 // mmap tests #define RUN(fn, name) dealloc_results(process_results(test_mmap_with_allocated_vm_map_kernel_flags_t(fn, name " (kernel flags)"))) RUN(call_mmap__anon_private__kernel_flags, "mmap (anon private)"); RUN(call_mmap__anon_shared__kernel_flags, "mmap (anon shared)"); #undef RUN #define RUN(fn, name) dealloc_results(process_results(test_mach_with_allocated_mmap_flags(fn, name " (mmap flags)"))) RUN(call_mmap__mmap_flags, "mmap"); #undef RUN #define RUN(fn, name) dealloc_results(process_results(test_mach_with_allocated_start_size(fn, name " (hint/size)"))) RUN(call_mmap__file_private__start_size, "mmap (file private)"); RUN(call_mmap__anon_private__start_size, "mmap (anon private)"); RUN(call_mmap__file_shared__start_size, "mmap (file shared)"); RUN(call_mmap__anon_shared__start_size, "mmap (anon shared)"); RUN(call_mmap__file_private_codesign__start_size, "mmap (file private codesign)"); RUN(call_mmap__file_private_media__start_size, "mmap (file private media)"); RUN(call_mmap__nounix03_private__start_size, "mmap (no unix03)"); #undef RUN #define RUN(fn, name) dealloc_results(process_results(test_fixed_dst_size(fn, name " (dst/size)"))) RUN(call_mmap__fixed_private__start_size, "mmap (fixed)"); #undef RUN #define RUN(fn, name) dealloc_results(process_results(test_mach_with_allocated_start_size(fn, name " (offset/size)"))) RUN(call_mmap__file_private__offset_size, "mmap (file private)"); RUN(call_mmap__anon_private__offset_size, "mmap (anon private)"); RUN(call_mmap__file_shared__offset_size, "mmap (file shared)"); RUN(call_mmap__anon_shared__offset_size, "mmap (anon shared)"); RUN(call_mmap__file_private_codesign__offset_size, "mmap (file private codesign)"); RUN(call_mmap__file_private_media__offset_size, "mmap (file private media)"); RUN(call_mmap__nounix03_private__offset_size, "mmap (no unix03)"); #undef RUN #define RUN(fn, name) dealloc_results(process_results(test_dst_size_fileoff(fn, name " (hint/size/fileoff)"))) RUN(call_mmap__file_private__dst_size_fileoff, "mmap (file private)"); RUN(call_mmap__anon_private__dst_size_fileoff, "mmap (anon private)"); RUN(call_mmap__file_shared__dst_size_fileoff, "mmap (file shared)"); RUN(call_mmap__anon_shared__dst_size_fileoff, "mmap (anon shared)"); RUN(call_mmap__file_private_codesign__dst_size_fileoff, "mmap (file private codesign)"); RUN(call_mmap__file_private_media__dst_size_fileoff, "mmap (file private media)"); RUN(call_mmap__nounix03_private__dst_size_fileoff, "mmap (no unix03)"); #undef RUN #define RUN(fn, name) dealloc_results(process_results(test_fixed_dst_size_fileoff(fn, name " (dst/size/fileoff)"))) RUN(call_mmap__fixed_private__dst_size_fileoff, "mmap (fixed)"); #undef RUN #define RUN(fn, name) dealloc_results(process_results(test_mach_with_allocated_vm_prot_t(fn, name " (vm_prot_t)"))) RUN(call_mmap__file_private__vm_prot, "mmap (file private)"); RUN(call_mmap__anon_private__vm_prot, "mmap (anon private)"); RUN(call_mmap__file_shared__vm_prot, "mmap (file shared)"); RUN(call_mmap__anon_shared__vm_prot, "mmap (anon shared)"); RUN(call_mmap__file_private_codesign__vm_prot, "mmap (file private codesign)"); RUN(call_mmap__file_private_media__vm_prot, "mmap (file private media)"); RUN(call_mmap__nounix03_private__vm_prot, "mmap (no unix03)"); RUN(call_mmap__fixed_private__vm_prot, "mmap (fixed)"); #undef RUN #define RUN(fn, name) dealloc_results(process_results(test_unix_with_allocated_start_size(fn, name " (start/size)"))) RUN(call_mremap_encrypted, "mremap_encrypted"); #undef RUN /* * -- wire/unwire functions -- */ #define RUN(fn, name) dealloc_results(process_results(test_unix_with_allocated_start_size(fn, name " (start/size)"))) RUN(call_mlock, "mlock"); RUN(call_munlock, "munlock"); #undef RUN #define RUN(fn, name) dealloc_results(process_results(test_mach_with_allocated_start_size(fn, name " (start/size)"))) RUN(call_mach_vm_wire__wire, "mach_vm_wire (wire)"); RUN(call_replacement_vm_wire__wire, "vm_wire (wire)"); RUN(call_mach_vm_wire__unwire, "mach_vm_wire (unwire)"); RUN(call_replacement_vm_wire__unwire, "vm_wire (unwire)"); #undef RUN #define RUN(fn, name) dealloc_results(process_results(test_mach_with_allocated_vm_prot_t(fn, name " (vm_prot_t)"))) RUN(call_mach_vm_wire__vm_prot, "mach_vm_wire"); RUN(call_replacement_vm_wire__vm_prot, "vm_wire"); #undef RUN /* * -- copyin/copyout functions -- */ #define RUN_NEW(fn, name) dealloc_results(process_results(test_mach_with_allocated_start_size(fn, name " (start/size)"))) #if TEST_OLD_STYLE_MACH #define RUN_OLD(fn, name) dealloc_results(process_results(test_oldmach_with_allocated_start_size(fn, name " (start/size)"))) #else #define RUN_OLD(fn, name) do {} while (0) #endif RUN_NEW(call_mach_vm_read, "mach_vm_read"); RUN_OLD(call_vm_read, "vm_read"); RUN_NEW(call_mach_vm_read_list, "mach_vm_read_list"); RUN_OLD(call_vm_read_list, "vm_read_list"); RUN_NEW(call_mach_vm_read_overwrite__src, "mach_vm_read_overwrite (src)"); RUN_NEW(call_mach_vm_read_overwrite__dst, "mach_vm_read_overwrite (dst)"); RUN_OLD(call_vm_read_overwrite__src, "vm_read_overwrite (src)"); RUN_OLD(call_vm_read_overwrite__dst, "vm_read_overwrite (dst)"); RUN_NEW(call_mach_vm_write__src, "mach_vm_write (src)"); RUN_NEW(call_mach_vm_write__dst, "mach_vm_write (dst)"); RUN_OLD(call_vm_write__src, "vm_write (src)"); RUN_OLD(call_vm_write__dst, "vm_write (dst)"); RUN_NEW(call_mach_vm_copy__src, "mach_vm_copy (src)"); RUN_NEW(call_mach_vm_copy__dst, "mach_vm_copy (dst)"); RUN_OLD(call_vm_copy__src, "vm_copy (src)"); RUN_OLD(call_vm_copy__dst, "vm_copy (dst)"); #undef RUN_NEW #undef RUN_OLD /* * -- inherit functions -- */ #define RUN_NEW(fn, name) dealloc_results(process_results(test_mach_with_allocated_start_size(fn, name " (start/size)"))) #if TEST_OLD_STYLE_MACH #define RUN_OLD(fn, name) dealloc_results(process_results(test_oldmach_with_allocated_start_size(fn, name " (start/size)"))) #else #define RUN_OLD(fn, name) do {} while (0) #endif RUN_NEW(call_mach_vm_inherit, "mach_vm_inherit"); RUN_OLD(call_vm_inherit, "vm_inherit"); #undef RUN_OLD #undef RUN_NEW #define RUN(fn, name) dealloc_results(process_results(test_unix_with_allocated_start_size(fn, name " (start/size)"))) RUN(call_minherit, "minherit"); #undef RUN #define RUN(fn, name) dealloc_results(process_results(test_mach_with_allocated_vm_inherit_t(fn, name " (vm_inherit_t)"))) RUN(call_mach_vm_inherit__inherit, "mach_vm_inherit"); #undef RUN #define RUN(fn, name) dealloc_results(process_results(test_unix_with_allocated_vm_inherit_t(fn, name " (vm_inherit_t)"))) RUN(call_minherit__inherit, "minherit"); #undef RUN /* * -- protection functions -- */ #define RUN_NEW(fn, name) dealloc_results(process_results(test_mach_with_allocated_start_size(fn, name " (start/size)"))) #if TEST_OLD_STYLE_MACH #define RUN_OLD(fn, name) dealloc_results(process_results(test_oldmach_with_allocated_start_size(fn, name " (start/size)"))) #else #define RUN_OLD(fn, name) do {} while (0) #endif RUN_NEW(call_mach_vm_protect__start_size, "mach_vm_protect"); RUN_OLD(call_vm_protect__start_size, "vm_protect"); #undef RUN_NEW #undef RUN_OLD #define RUN_NEW(fn, name) dealloc_results(process_results(test_mach_with_allocated_vm_prot_t(fn, name " (vm_prot_t)"))) #if TEST_OLD_STYLE_MACH #define RUN_OLD(fn, name) dealloc_results(process_results(test_oldmach_with_allocated_vm_prot_t(fn, name " (vm_prot_t)"))) #else #define RUN_OLD(fn, name) do {} while (0) #endif RUN_NEW(call_mach_vm_protect__vm_prot, "mach_vm_protect"); RUN_OLD(call_vm_protect__vm_prot, "vm_protect"); #undef RUN_NEW #undef RUN_OLD #define RUN(fn, name) dealloc_results(process_results(test_unix_with_allocated_start_size(fn, name " (start/size)"))) RUN(call_mprotect__start_size, "mprotect"); #undef RUN #define RUN(fn, name) dealloc_results(process_results(test_unix_with_allocated_vm_prot_t(fn, name " (vm_prot_t)"))) RUN(call_mprotect__vm_prot, "mprotect"); #undef RUN /* * -- madvise/behavior functions -- */ unsigned alignment_for_can_reuse; if (isRosetta()) { /* * VM_BEHAVIOR_CAN_REUSE and MADV_CAN_REUSE get different errors * on Rosetta when the allocation happens to be 4K vs 16K aligned. * Force 16K alignment for consistent results. */ alignment_for_can_reuse = KB16 - 1; } else { /* Use default alignment everywhere else. */ alignment_for_can_reuse = 0; } #define RUN_NEW(fn, name) dealloc_results(process_results(test_mach_with_allocated_start_size(fn, name " (start/size)"))) #if TEST_OLD_STYLE_MACH #define RUN_OLD(fn, name) dealloc_results(process_results(test_oldmach_with_allocated_start_size(fn, name " (start/size)"))) #else #define RUN_OLD(fn, name) do {} while (0) #endif RUN_NEW(call_mach_vm_behavior_set__start_size__default, "mach_vm_behavior_set (VM_BEHAVIOR_DEFAULT)"); RUN_OLD(call_vm_behavior_set__start_size__default, "vm_behavior_set (VM_BEHAVIOR_DEFAULT)"); #undef RUN_NEW #undef RUN_OLD #define RUN_NEW(fn, name) dealloc_results(process_results(test_mach_with_allocated_aligned_start_size(fn, alignment_for_can_reuse, name " (start/size)"))) #if TEST_OLD_STYLE_MACH #define RUN_OLD(fn, name) dealloc_results(process_results(test_oldmach_with_allocated_aligned_start_size(fn, alignment_for_can_reuse, name " (start/size)"))) #else #define RUN_OLD(fn, name) do {} while (0) #endif RUN_NEW(call_mach_vm_behavior_set__start_size__can_reuse, "mach_vm_behavior_set (VM_BEHAVIOR_CAN_REUSE)"); RUN_OLD(call_vm_behavior_set__start_size__can_reuse, "vm_behavior_set (VM_BEHAVIOR_CAN_REUSE)"); #undef RUN_NEW #undef RUN_OLD #define RUN_NEW(fn, name) dealloc_results(process_results(test_mach_with_allocated_aligned_vm_behavior_t(fn, alignment_for_can_reuse, name " (vm_behavior_t)"))) #if TEST_OLD_STYLE_MACH #define RUN_OLD(fn, name) dealloc_results(process_results(test_oldmach_with_allocated_aligned_vm_behavior_t(fn, alignment_for_can_reuse, name " (vm_behavior_t)"))) #else #define RUN_OLD(fn, name) do {} while (0) #endif RUN_NEW(call_mach_vm_behavior_set__vm_behavior, "mach_vm_behavior_set"); RUN_OLD(call_vm_behavior_set__vm_behavior, "vm_behavior_set"); #undef RUN_NEW #undef RUN_OLD #define RUN(fn, name) dealloc_results(process_results(test_unix_with_allocated_start_size(fn, name " (start/size)"))) RUN(call_madvise__start_size, "madvise"); #undef RUN #define RUN(fn, name) dealloc_results(process_results(test_unix_with_allocated_aligned_vm_advise_t(fn, alignment_for_can_reuse, name " (vm_advise_t)"))) RUN(call_madvise__vm_advise, "madvise"); #undef RUN /* * -- msync functions -- */ #define RUN_NEW(fn, name) dealloc_results(process_results(test_mach_with_allocated_start_size(fn, name " (start/size)"))) #if TEST_OLD_STYLE_MACH #define RUN_OLD(fn, name) dealloc_results(process_results(test_oldmach_with_allocated_start_size(fn, name " (start/size)"))) #else #define RUN_OLD(fn, name) do {} while (0) #endif RUN_NEW(call_mach_vm_msync__start_size, "mach_vm_msync"); RUN_OLD(call_vm_msync__start_size, "vm_msync"); #undef RUN_NEW #undef RUN_OLD #define RUN_NEW(fn, name) dealloc_results(process_results(test_mach_with_allocated_vm_sync_t(fn, name " (vm_sync_t)"))) #if TEST_OLD_STYLE_MACH #define RUN_OLD(fn, name) dealloc_results(process_results(test_oldmach_with_allocated_vm_sync_t(fn, name " (vm_sync_t)"))) #else #define RUN_OLD(fn, name) do {} while (0) #endif RUN_NEW(call_mach_vm_msync__vm_sync, "mach_vm_msync"); RUN_OLD(call_vm_msync__vm_sync, "vm_msync"); #undef RUN_NEW #undef RUN_OLD #define RUN(fn, name) dealloc_results(process_results(test_unix_with_allocated_start_size(fn, name " (start/size)"))) RUN(call_msync__start_size, "msync"); RUN(call_msync_nocancel__start_size, "msync_nocancel"); #undef RUN #define RUN(fn, name) dealloc_results(process_results(test_unix_with_allocated_vm_msync_t(fn, name " (msync flags)"))) RUN(call_msync__vm_msync, "msync"); RUN(call_msync_nocancel__vm_msync, "msync_nocancel"); #undef RUN /* * -- machine attribute functions -- */ #define RUN_NEW(fn, name) dealloc_results(process_results(test_mach_with_allocated_start_size(fn, name " (start/size)"))) #if TEST_OLD_STYLE_MACH #define RUN_OLD(fn, name) dealloc_results(process_results(test_oldmach_with_allocated_start_size(fn, name " (start/size)"))) #else #define RUN_OLD(fn, name) do {} while (0) #endif RUN_NEW(call_mach_vm_machine_attribute__start_size, "mach_vm_machine_attribute"); RUN_OLD(call_vm_machine_attribute__start_size, "vm_machine_attribute"); #undef RUN_NEW #undef RUN_OLD #define RUN_NEW(fn, name) dealloc_results(process_results(test_mach_with_allocated_vm_machine_attribute_t(fn, name " (machine_attribute_t)"))) #if TEST_OLD_STYLE_MACH #define RUN_OLD(fn, name) dealloc_results(process_results(test_oldmach_with_allocated_vm_machine_attribute_t(fn, name " (machine_attribute_t)"))) #else #define RUN_OLD(fn, name) do {} while (0) #endif RUN_NEW(call_mach_vm_machine_attribute__machine_attribute, "mach_vm_machine_attribute"); RUN_OLD(call_vm_machine_attribute__machine_attribute, "vm_machine_attribute"); #undef RUN_NEW #undef RUN_OLD /* * -- purgability/purgeability functions -- */ #define RUN_NEW(fn, name) dealloc_results(process_results(test_mach_with_allocated_purgeable_addr(fn, name " (addr)"))) #if TEST_OLD_STYLE_MACH #define RUN_OLD(fn, name) dealloc_results(process_results(test_oldmach_with_allocated_purgeable_addr(fn, name " (addr)"))) #else #define RUN_OLD(fn, name) do {} while (0) #endif RUN_NEW(call_mach_vm_purgable_control__address__get, "mach_vm_purgable_control (get)"); RUN_OLD(call_vm_purgable_control__address__get, "vm_purgable_control (get)"); RUN_NEW(call_mach_vm_purgable_control__address__purge_all, "mach_vm_purgable_control (purge all)"); RUN_OLD(call_vm_purgable_control__address__purge_all, "vm_purgable_control (purge all)"); #undef RUN_NEW #undef RUN_OLD #define RUN_NEW(fn, name) dealloc_results(process_results(test_mach_with_allocated_purgeable_and_state(fn, name " (purgeable and state)"))) #if TEST_OLD_STYLE_MACH #define RUN_OLD(fn, name) dealloc_results(process_results(test_oldmach_with_allocated_purgeable_and_state(fn, name " (purgeable and state)"))) #else #define RUN_OLD(fn, name) do {} while (0) #endif RUN_NEW(call_mach_vm_purgable_control__purgeable_state, "mach_vm_purgable_control"); RUN_OLD(call_vm_purgable_control__purgeable_state, "vm_purgable_control"); #undef RUN_NEW #undef RUN_OLD /* * -- region info functions -- */ #define RUN_NEW(fn, name) dealloc_results(process_results(test_mach_with_allocated_addr(fn, name " (addr)"))) #if TEST_OLD_STYLE_MACH #define RUN_OLD(fn, name) dealloc_results(process_results(test_oldmach_with_allocated_addr(fn, name " (addr)"))) #else #define RUN_OLD(fn, name) do {} while (0) #endif RUN_NEW(call_mach_vm_region, "mach_vm_region"); RUN_OLD(call_vm_region, "vm_region"); RUN_NEW(call_mach_vm_region_recurse, "mach_vm_region_recurse"); RUN_OLD(call_vm_region_recurse, "vm_region_recurse"); RUN_OLD(call_vm_region_recurse_64, "vm_region_recurse_64"); #undef RUN_NEW #undef RUN_OLD /* * -- page info functions -- */ #define RUN_NEW(fn, name) dealloc_results(process_results(test_mach_with_allocated_addr(fn, name " (addr)"))) #if TEST_OLD_STYLE_MACH #define RUN_OLD(fn, name) dealloc_results(process_results(test_oldmach_with_allocated_addr(fn, name " (addr)"))) #else #define RUN_OLD(fn, name) do {} while (0) #endif RUN_NEW(call_mach_vm_page_info, "mach_vm_page_info"); RUN_NEW(call_mach_vm_page_query, "mach_vm_page_query"); RUN_OLD(call_vm_map_page_query, "vm_map_page_query"); #undef RUN_NEW #undef RUN_OLD #define RUN_NEW(fn, name) dealloc_results(process_results(test_mach_with_allocated_start_size(fn, name " (start/size)"))) RUN_NEW(call_mach_vm_page_range_query, "mach_vm_page_range_query"); #undef RUN_NEW #define RUN(fn, name) dealloc_results(process_results(test_unix_with_allocated_start_size(fn, name " (start/size)"))) RUN(call_mincore, "mincore"); #undef RUN /* * -- miscellaneous functions -- */ #define RUN(fn, name) dealloc_results(process_results(test_unix_shared_region_map_and_slide_2_np(fn, name " (files/mappings)"))) RUN(call_shared_region_map_and_slide_2_np_child, "shared_region_map_and_slide_2_np"); RUN(call_shared_region_map_and_slide_2_np_in_thread, "different thread shared_region_map_and_slide_2_np"); #undef RUN #if 0 #define RUN(fn, name) dealloc_results(process_results(test_mach_vm_deferred_reclamation_buffer_init(fn, name))) RUN(call_mach_vm_deferred_reclamation_buffer_init, "mach_vm_deferred_reclamation_buffer_init"); #undef RUN #endif out: restore_exc_guard(); if (generate_golden) { if (!out_param_bad_count || (dump && !should_test_results)) { // Print after verified there is not OUT_PARAM_BAD results before printing, // or user explicitly set DUMP_RESULTS=1 GENERATE_GOLDEN_IMAGE=1 printf("%s", GOLDEN_OUTPUT_START); } } free(GOLDEN_OUTPUT_START); if (dump_golden || should_test_results) { clean_golden_results(); } if (reenable_vm_sanitize_telemetry() != 0) { T_FAIL("Failed to reenable VM API telemetry."); return; } T_PASS("vm parameter validation userspace"); } ///////////////////////////////////////////////////// // Kernel test invocation. // The actual test code is in: // osfmk/tests/vm_parameter_validation_kern.c #ifndef STRINGIFY #define __STR(x) #x #define STRINGIFY(x) __STR(x) #endif // Verify golden list being generated doesn't contain OUT_BAD_PARAM static int out_bad_param_in_kern_golden_results(char *kern_buffer) { const char *out_param_bad_str = STRINGIFY(OUT_PARAM_BAD); char *out_param_bad_match = strstr(kern_buffer, out_param_bad_str); if (out_param_bad_match) { T_FAIL("Out parameter violation return code (%s) found in results, aborting.\n", out_param_bad_str); return 1; } return 0; } // Read results written by __dump_results() static int populate_kernel_results(char *kern_buffer) { char *line = NULL; char *test_name = NULL; results_t *kern_results = NULL; bool in_test = FALSE; line = strtok(kern_buffer, KERN_RESULT_DELIMITER); while (line != NULL) { if (strncmp(line, TESTNAME_DELIMITER, strlen(TESTNAME_DELIMITER)) == 0) { char *sub_line = line + strlen(TESTNAME_DELIMITER); test_name = strdup(sub_line); in_test = TRUE; } else if (in_test && strncmp(line, RESULTCOUNT_DELIMITER, strlen(RESULTCOUNT_DELIMITER)) == 0) { char *s_num_kern_results = line + strlen(RESULTCOUNT_DELIMITER); uint32_t num_kern_results = (uint32_t)strtoul(s_num_kern_results, NULL, 10); kern_results = alloc_results(test_name, eUNKNOWN_TRIALS, num_kern_results); kern_list[num_kern_tests++] = kern_results; } else if (in_test && strncmp(line, TESTCONFIG_DELIMITER, strlen(TESTCONFIG_DELIMITER)) == 0) { char *sub_line = line + strlen(TESTCONFIG_DELIMITER); kern_results->testconfig = strdup(sub_line); } else if (in_test && strstr(line, KERN_TESTRESULT_DELIMITER)) { // should have found TESTCONFIG already assert(kern_results->testconfig != NULL); int result_ret = 0; char *token; sscanf(line, KERN_TESTRESULT_DELIMITER "%d", &result_ret); // get result name (comes after the first ,) token = strchr(line, ','); if (token && strlen(token) > 2) { token = token + 2; // skip the , and the extra space char *result_name = strdup(token); if (kern_results->count >= kern_results->capacity) { T_LOG("\tKERN Invalid output in test %s, " "too many results (expected %u), " "ignoring trial RESULT %d, %s\n", test_name, kern_results->capacity, result_ret, result_name); free(result_name); } else { kern_results->list[kern_results->count++] = (result_t){.ret = result_ret, .name = result_name}; } } } else if (strncmp(line, KERN_FAILURE_DELIMITER, strlen(KERN_FAILURE_DELIMITER)) == 0) { /* * A fatal error message interrupted the output. * (for example, the kernel test's output buffer is full) * Clean up the last test because it may be * invalid due to truncated output. */ T_FAIL("%s", line); if (kern_results != NULL) { if (kern_results->testconfig == NULL) { // We didn't get any results for this test. // Just drop it. dealloc_results(kern_results); kern_results = NULL; kern_list[--num_kern_tests] = NULL; } else { kern_results->kernel_buffer_full = true; } } // Stop reading results now. break; } else { /* * Unrecognized output text. * One possible cause is that the kernel test's output * buffer is full so this line was truncated beyond * recognition. In that case we'll hit the * KERN_FAILURE_DELIMITER line next. */ // T_LOG("Unknown kernel result line: %s\n", line); } line = strtok(NULL, KERN_RESULT_DELIMITER); } dump_kernel_results_list(); return 0; } static int64_t run_sysctl_test(const char *t, int64_t value) { char name[1024]; int64_t result = 0; size_t s = sizeof(value); int rc; snprintf(name, sizeof(name), "debug.test.%s", t); rc = sysctlbyname(name, &result, &s, &value, s); if (rc == -1 && errno == ENOENT) { /* * sysctl name not found. Probably an older kernel with the * previous version of this test. */ T_FAIL("sysctl %s not found; may be running on an older kernel " "that does not implement the current version of this test", name); exit(1); } T_QUIET; T_ASSERT_POSIX_SUCCESS(rc, "sysctlbyname(%s)", t); return result; } T_DECL(vm_parameter_validation_kern, "parameter validation for kext/xnu calls", T_META_SPAWN_TOOL(DECOMPRESS), T_META_SPAWN_TOOL_ARG("kern"), T_META_SPAWN_TOOL_ARG(TMP_DIR), T_META_SPAWN_TOOL_ARG(GOLDEN_FILES_VERSION), T_META_SPAWN_TOOL_ARG(GOLDEN_FILES_ARCH) ) { if (disable_vm_sanitize_telemetry() != 0) { T_FAIL("Could not disable VM API telemetry. Bailing out early."); return; } read_env(); T_LOG("dump %d, golden %d, dump_golden %d, test %d\n", dump, generate_golden, dump_golden, should_test_results); disable_exc_guard(); if (dump_golden) { if (populate_golden_results(KERN_GOLDEN_FILE)) { // couldn't load golden test results T_FAIL("Could not load golden file '%s'\n", KERN_GOLDEN_FILE); goto out; } // just print the parsed golden file for (uint32_t x = 0; x < num_tests; ++x) { __dump_results(golden_list[x]); } clean_golden_results(); goto out; } T_LOG("Running kernel tests\n"); // We allocate a large buffer. The kernel-side code writes output to it. // Then we print that output. This is faster than making the kernel-side // code print directly to the serial console, which takes many minutes // to transfer our test output at 14.4 KB/s. // We align this buffer to KB16 to allow the lower bits to be used for a fd. char *output = calloc(SYSCTL_OUTPUT_BUFFER_SIZE, 1); vm_parameter_validation_kern_args_t args = { .sizeof_args = sizeof(args), .output_buffer_address = (uint64_t)output, .output_buffer_size = SYSCTL_OUTPUT_BUFFER_SIZE, .file_descriptor = get_fd(), .generate_golden = generate_golden }; int64_t result = run_sysctl_test("vm_parameter_validation_kern_v2", (int64_t)&args); switch (result) { case KERN_TEST_SUCCESS: break; case KERN_TEST_BAD_ARGS: T_FAIL("version mismatch between test and kernel: " "sizeof(vm_parameter_validation_kern_args_t) did not match"); goto out; case KERN_TEST_FAILED: if (output[0] == 0) { // no output from the kernel test; print a generic error T_FAIL("kernel test failed for unknown reasons"); } else { // kernel provided a message: print it T_FAIL("kernel test failed: %s", output); } goto out; default: T_FAIL("kernel test failed with unknown error %llu", result); goto out; } if (generate_golden) { if (!out_bad_param_in_kern_golden_results(output) || (dump && !should_test_results)) { // Print after verified there is not OUT_PARAM_BAD results before printing, // or user explicitly set DUMP_RESULTS=1 GENERATE_GOLDEN_IMAGE=1 printf("%s", output); } free(output); output = NULL; } else { // recreate a results_t to compare against the golden file results if (populate_kernel_results(output)) { T_FAIL("Error while parsing results\n"); } free(output); output = NULL; if (should_test_results && populate_golden_results(KERN_GOLDEN_FILE)) { // couldn't load golden test results T_FAIL("Could not load golden file '%s'\n", KERN_GOLDEN_FILE); clean_kernel_results(); goto out; } // compare results against values from golden list for (uint32_t x = 0; x < num_kern_tests; ++x) { process_results(kern_list[x]); dealloc_results(kern_list[x]); kern_list[x] = NULL; } clean_golden_results(); } out: restore_exc_guard(); if (reenable_vm_sanitize_telemetry() != 0) { T_FAIL("Failed to reenable VM API telemetry."); return; } T_PASS("vm parameter validation kern"); } |