X-Git-Url: https://git.saurik.com/cycript.git/blobdiff_plain/ad9b5f33fa57cb70f654e335c4ad8919613ff6d9..8964aa089c709fbf370be623d75a204480b26b3c:/Mach/Inject.cpp diff --git a/Mach/Inject.cpp b/Mach/Inject.cpp index 74e5b30..982ffe4 100644 --- a/Mach/Inject.cpp +++ b/Mach/Inject.cpp @@ -19,29 +19,25 @@ **/ /* }}} */ -#include - -#include - -#ifdef __APPLE__ #include "TargetConditionals.h" +#ifdef TARGET_OS_IPHONE +#undef __ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__ +#define __ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__ __IPHONE_5_0 #endif -#ifdef TARGET_OS_IPHONE +#include +#include +#include + +#include #include -#define mach_vm_allocate vm_allocate -#define mach_vm_protect vm_protect -#define mach_vm_write vm_write -#define mach_vm_address_t vm_address_t -#else #include -#endif #include -#include -#include -#include +#ifdef __arm__ +#include "Mach/Memory.hpp" +#endif #include "Baton.hpp" #include "Exception.hpp" @@ -50,37 +46,118 @@ extern "C" void CYHandleServer(pid_t); +extern "C" void *_dyld_get_all_image_infos(); + void InjectLibrary(pid_t pid) { Dl_info addr; _assert(dladdr(reinterpret_cast(&CYHandleServer), &addr) != 0); - const char *library(addr.dli_fname); + + size_t flength(strlen(addr.dli_fname)); + char library[flength + 4 + 1]; + memcpy(library, addr.dli_fname, flength); + library[flength] = '\0'; + _assert(strcmp(library + flength - 6, ".dylib") == 0); +#ifndef TARGET_OS_IPHONE + strcpy(library + flength - 6, "-any.dylib"); +#endif mach_port_t self(mach_task_self()), task; _krncall(task_for_pid(self, pid, &task)); - mach_msg_type_number_t count; - task_dyld_info info; - count = TASK_DYLD_INFO_COUNT; +#ifdef __arm__ + union { + struct { + uint32_t all_image_info_addr; + } info_1; + + struct { + uint32_t all_image_info_addr; + uint32_t all_image_info_size; + int32_t all_image_info_format; + } info32; + + struct { + uint64_t all_image_info_addr; + uint64_t all_image_info_size; + int32_t all_image_info_format; + } info64; + } infoXX; + + mach_msg_type_number_t count(sizeof(infoXX) / sizeof(natural_t)); + _krncall(task_info(task, TASK_DYLD_INFO, reinterpret_cast(&infoXX), &count)); + + bool broken; + + switch (count) { + case sizeof(infoXX.info_1) / sizeof(natural_t): + broken = true; + info.all_image_info_addr = infoXX.info_1.all_image_info_addr; + info.all_image_info_size = 0; + info.all_image_info_format = TASK_DYLD_ALL_IMAGE_INFO_32; + break; + case sizeof(infoXX.info32) / sizeof(natural_t): + broken = true; + info.all_image_info_addr = infoXX.info32.all_image_info_addr; + info.all_image_info_size = infoXX.info32.all_image_info_size; + info.all_image_info_format = infoXX.info32.all_image_info_format; + break; + case sizeof(infoXX.info64) / sizeof(natural_t): + broken = false; + info.all_image_info_addr = infoXX.info64.all_image_info_addr; + info.all_image_info_size = infoXX.info64.all_image_info_size; + info.all_image_info_format = infoXX.info64.all_image_info_format; + break; + default: + _assert(false); + } +#else + mach_msg_type_number_t count(TASK_DYLD_INFO_COUNT); _krncall(task_info(task, TASK_DYLD_INFO, reinterpret_cast(&info), &count)); _assert(count == TASK_DYLD_INFO_COUNT); +#endif _assert(info.all_image_info_addr != 0); thread_act_t thread; _krncall(thread_create(task, &thread)); + thread_state_t bottom; + thread_state_flavor_t flavor; + #if defined (__i386__) || defined(__x86_64__) x86_thread_state_t state; -#elif defined(__arm__) - arm_thread_state_t state; + memset(&state, 0, sizeof(state)); + + bottom = reinterpret_cast(&state); + flavor = MACHINE_THREAD_STATE; + count = MACHINE_THREAD_STATE_COUNT; +#elif defined(__arm__) || defined(__arm64__) + arm_unified_thread_state_t state; + memset(&state, 0, sizeof(state)); + + switch (info.all_image_info_format) { + case TASK_DYLD_ALL_IMAGE_INFO_32: + bottom = reinterpret_cast(&state.ts_32); + flavor = ARM_THREAD_STATE; + count = ARM_THREAD_STATE_COUNT; + state.ash.flavor = ARM_THREAD_STATE32; + break; + case TASK_DYLD_ALL_IMAGE_INFO_64: + bottom = reinterpret_cast(&state.ts_64); + flavor = ARM_THREAD_STATE64; + count = ARM_THREAD_STATE64_COUNT + 1; + state.ash.flavor = ARM_THREAD_STATE64; + break; + default: + _assert(false); + } #else #error XXX: implement #endif - memset(&state, 0, sizeof(state)); - mach_msg_type_number_t read(MACHINE_THREAD_STATE_COUNT); - _krncall(thread_get_state(thread, MACHINE_THREAD_STATE, reinterpret_cast(&state), &read)); - _assert(read == MACHINE_THREAD_STATE_COUNT); + mach_msg_type_number_t read(count); + _krncall(thread_get_state(thread, flavor, bottom, &read)); + _assert(read == count); Trampoline *trampoline; size_t align; @@ -101,10 +178,21 @@ void InjectLibrary(pid_t pid) { default: _assert(false); } -#elif defined(__arm__) - trampoline = &Trampoline_armv6_; - align = 4; - push = 0; +#elif defined(__arm__) || defined(__arm64__) + switch (state.ash.flavor) { + case ARM_THREAD_STATE32: + trampoline = &Trampoline_armv6_; + align = 4; + push = 0; + break; + case ARM_THREAD_STATE64: + trampoline = &Trampoline_arm64_; + align = 8; + push = 0; + break; + default: + _assert(false); + } #else #error XXX: implement #endif @@ -130,7 +218,7 @@ void InjectLibrary(pid_t pid) { mach_vm_address_t code; _krncall(mach_vm_allocate(task, &code, trampoline->size_, true)); - _krncall(mach_vm_write(task, code, reinterpret_cast(trampoline->data_), trampoline->size_)); + _krncall(mach_vm_write(task, code, reinterpret_cast(trampoline->data_), trampoline->size_)); _krncall(mach_vm_protect(task, code, trampoline->size_, false, VM_PROT_READ | VM_PROT_EXECUTE)); uint32_t frame[push]; @@ -152,14 +240,28 @@ void InjectLibrary(pid_t pid) { default: _assert(false); } -#elif defined(__arm__) - state.__r[0] = data; - state.__pc = code + trampoline->entry_; - state.__sp = stack + Stack_ - sizeof(frame); - - if ((state.__pc & 0x1) != 0) { - state.__pc &= ~0x1; - state.__cpsr |= 0x20; +#elif defined(__arm__) || defined(__arm64__) + switch (state.ash.flavor) { + case ARM_THREAD_STATE32: + state.ts_32.__r[0] = data; + state.ts_32.__pc = code + trampoline->entry_; + state.ts_32.__sp = stack + Stack_ - sizeof(frame); + + if ((state.ts_32.__pc & 0x1) != 0) { + state.ts_32.__pc &= ~0x1; + state.ts_32.__cpsr |= 0x20; + } + + break; + + case ARM_THREAD_STATE64: + state.ts_64.__x[0] = data; + state.ts_64.__pc = code + trampoline->entry_; + state.ts_64.__sp = stack + Stack_ - sizeof(frame); + break; + + default: + _assert(false); } #else #error XXX: implement @@ -168,8 +270,32 @@ void InjectLibrary(pid_t pid) { if (sizeof(frame) != 0) _krncall(mach_vm_write(task, stack + Stack_ - sizeof(frame), reinterpret_cast(frame), sizeof(frame))); - _krncall(thread_set_state(thread, MACHINE_THREAD_STATE, reinterpret_cast(&state), MACHINE_THREAD_STATE_COUNT)); + _krncall(thread_set_state(thread, flavor, bottom, read)); _krncall(thread_resume(thread)); + loop: switch (kern_return_t status = thread_get_state(thread, flavor, bottom, &(read = count))) { + case KERN_SUCCESS: + usleep(10000); + goto loop; + + case KERN_TERMINATED: + case MACH_SEND_INVALID_DEST: + break; + + default: + _assert(false); + } + + _krncall(mach_port_deallocate(self, thread)); + + mach_vm_size_t error(sizeof(baton->error)); + _krncall(mach_vm_read_overwrite(task, data + offsetof(Baton, error), sizeof(baton->error), reinterpret_cast(&baton->error), &error)); + _assert(error == sizeof(baton->error)); + if (baton->error[0] != '\0') + CYThrow("%s", baton->error); + + _krncall(mach_vm_deallocate(task, code, trampoline->size_)); + _krncall(mach_vm_deallocate(task, stack, size)); + _krncall(mach_port_deallocate(self, task)); }