diff options
| -rw-r--r-- | launch.json | 6 | ||||
| -rw-r--r-- | src/js/main.js | 56 | ||||
| -rw-r--r-- | tools/thread_shit.c | 51 |
3 files changed, 99 insertions, 14 deletions
diff --git a/launch.json b/launch.json new file mode 100644 index 0000000..c2fecf3 --- /dev/null +++ b/launch.json @@ -0,0 +1,6 @@ +{ + "name": "Launch", + "type": "lldb", + "request": "launch", + "program": "${workspaceFolder}/tools/bin/thread_shit" +}
\ No newline at end of file diff --git a/src/js/main.js b/src/js/main.js index c7a8d57..d611329 100644 --- a/src/js/main.js +++ b/src/js/main.js @@ -8,6 +8,9 @@ var MAX_SLIDE = 0x3; var MIN_SLIDE = 0x1; +var ARM_THREAD_STATE = 0x1; +var ARM_THREAD_STATE_COUNT = 0x11; + try { log("we out here in jsc"); } catch (e) { @@ -31,6 +34,26 @@ function main() { slide = get_our_slide(); base = 0x4000 + (slide << 12); slid = (slide << 12); + mytask = 0; + count = 0x130000; + th = 0x130100; +// thread_state_ptr = 0x130008; + thread_state = 0x130200; + countptr = 0x131000; + thptr = 0x131004; + thread_stateptr = 0x131008; + + countptrptr = 0x132000; + thptrptr = 0x132004; + thread_stateptrptr = 0x132008; + + write_u32(countptr, count); + write_u32(thptr, th); + write_u32(thread_stateptr, thread_state); + + write_u32(countptrptr, countptr); + write_u32(thptrptr, thptr); + write_u32(thread_stateptrptr, thread_stateptr); init_sptr_heap(); @@ -42,12 +65,35 @@ function main() { printf("*(uint16_t*)base = 0x%x\n", read_u16(base)); printf("*(uint32_t*)base = 0x%x\n", read_u32(base)); - var i = 0; - while (true) { - calls4arg("syslog", 0x28, sptr("get rekt from jsc %d (slide=%x)\n"), i, slide); - calls4arg("sleep", 1, 0, 0, 0); - i++; + puts("alive"); + mytask = calls4arg("mach_task_self", 0, 0, 0, 0); + + printf("%x %x %x\n", mytask, thptr, th); + printf("%x %x\n", thread_stateptr, countptr); + + puts("alive"); + calls4arg("thread_create", mytask, th, 0, 0); + printf("mytask=%x th=%x\n", mytask, read_u32(th)); + puts("alive"); + calls4arg("thread_get_state", thptr, ARM_THREAD_STATE, thread_stateptrptr, countptr); + printf("thread_state=%x\n", read_u32(thread_state)); + puts("alive"); + for (var i = 0; i < 16; i++) { + write_u32(thread_state + (i << 2), 0x41414140 + i); } + printf("thread_state=%x\n", read_u32(thread_state)); + puts("alive"); + calls4arg("thread_set_state", thptr, ARM_THREAD_STATE, thread_stateptrptr, ARM_THREAD_STATE_COUNT); + puts("alive"); + calls4arg("thread_resume", thptr, 0, 0, 0); + puts("alive"); + +// var i = 0; +// while (true) { +// calls4arg("syslog", 0x28, sptr("get rekt from jsc %d (slide=%x)\n"), i, slide); +// calls4arg("sleep", 1, 0, 0, 0); +// i++; +// } log("still alive"); }; diff --git a/tools/thread_shit.c b/tools/thread_shit.c index c5650eb..74ef0c5 100644 --- a/tools/thread_shit.c +++ b/tools/thread_shit.c @@ -1,5 +1,12 @@ #include <mach/mach.h> +#include <sys/mman.h> #include <stdio.h> +#include <dlfcn.h> + +void lol(void) { + puts("hello?"); +// *(uint32_t*)0x41424344 = 0; +} int main(int argc, char* argv[]) { kern_return_t kr; @@ -9,23 +16,49 @@ int main(int argc, char* argv[]) { mytask = mach_task_self(); mythread = mach_thread_self(); + mmap(0x2000000, 0x100000, PROT_READ | PROT_WRITE, MAP_ANON | MAP_PRIVATE, 0, 0); + + char* test = malloc(0x100); + strcpy(test, "Hello, world! %x %x %x %x %x %x %x\n"); + + puts("test"); + thread_create(mytask, &th); + printf("%x\n", mytask); arm_thread_state_t state; mach_msg_type_number_t count; - kr = thread_get_state(th, ARM_THREAD_STATE, (thread_state_t)&state, &count); - printf("%d %d %s\n", kr, KERN_SUCCESS, mach_error_string(kr)); + kr = thread_get_state(mythread, ARM_THREAD_STATE, (thread_state_t)&state, &count); + + uint32_t* stack_above = 0x2001000; + stack_above[0] = 0x42069; + stack_above[1] = 0x69420; + stack_above[3] = 0x13371337; + stack_above[4] = 0x6969; + +// fprintf(stderr, "%p %p\n", test, dlsym(RTLD_DEFAULT, "puts")); + +// exit(42); + +// *(uint32_t*)0x41414141 = 0; + +// memset(&state, 0, ARM_THREAD_STATE_COUNT * sizeof(uint32_t)); + for (int i = 0; i < 13; i++) { - state.__r[i] = 0x41414140 + i; + fprintf(stderr, "r%d=%x\n", i, state.__r[i]); } - state.__sp = 0x4141414c; - state.__lr = 0x4141414d; - state.__pc = 0x4141414e; + + state.__r[0] = test; +// state.__r[9] = pthread_keys; + state.__sp = (uint32_t)stack_above; + state.__pc = ((uint32_t)lol) | 1; + state.__cpsr = 0x40000010; kr = thread_set_state(th, ARM_THREAD_STATE, (thread_state_t)&state, ARM_THREAD_STATE_COUNT); - printf("%d %d %s\n", kr, KERN_SUCCESS, mach_error_string(kr)); kr = thread_resume(th); - printf("%d %d %s\n", kr, KERN_SUCCESS, mach_error_string(kr)); +// thread_call_enter((thread_call_func_t)&lol); - printf("still alive?\n"); + while (1) { + ;; + } return 0; }
\ No newline at end of file |
