diff --git a/fusee/fusee-secondary/src/kernel_patches.c b/fusee/fusee-secondary/src/kernel_patches.c index f12cc1fff..46754ccf3 100644 --- a/fusee/fusee-secondary/src/kernel_patches.c +++ b/fusee/fusee-secondary/src/kernel_patches.c @@ -41,6 +41,7 @@ typedef struct { typedef struct { uint8_t hash[0x20]; /* TODO: Come up with a better way to identify kernels, that doesn't rely on hashing them. */ + size_t hash_size; /* Only hash the first N bytes of the kernel, if this is set. */ size_t free_code_space_offset; unsigned int num_patches; const kernel_patch_t *patches; @@ -371,6 +372,7 @@ static const instruction_t MAKE_KERNEL_PATCH_NAME(700, proc_id_recv)[] = {0xA9BF static const instruction_t MAKE_KERNEL_PATCH_NAME(500, svc_control_codememory)[] = {MAKE_NOP}; static const instruction_t MAKE_KERNEL_PATCH_NAME(600, svc_control_codememory)[] = {MAKE_NOP}; static const instruction_t MAKE_KERNEL_PATCH_NAME(700, svc_control_codememory)[] = {MAKE_NOP}; +static const instruction_t MAKE_KERNEL_PATCH_NAME(800, svc_control_codememory)[] = {MAKE_NOP}; /* Hook Definitions. */ static const kernel_patch_t g_kernel_patches_100[] = { @@ -532,6 +534,14 @@ static const kernel_patch_t g_kernel_patches_700[] = { .patch_offset = 0x3C6E0, } }; +static const kernel_patch_t g_kernel_patches_800[] = { + /* TODO: Send, Receive. */ + { /* svcControlCodeMemory Patch. */ + .payload_num_instructions = sizeof(MAKE_KERNEL_PATCH_NAME(800, svc_control_codememory))/sizeof(instruction_t), + .payload = MAKE_KERNEL_PATCH_NAME(800, svc_control_codememory), + .patch_offset = 0x3FAD0, + } +}; #define KERNEL_PATCHES(vers) .num_patches = sizeof(g_kernel_patches_##vers)/sizeof(kernel_patch_t), .patches = g_kernel_patches_##vers, @@ -581,6 +591,12 @@ static const kernel_info_t g_kernel_infos[] = { .hash = {0xA2, 0x5E, 0x47, 0x0C, 0x8E, 0x6D, 0x2F, 0xD7, 0x5D, 0xAD, 0x24, 0xD7, 0xD8, 0x24, 0x34, 0xFB, 0xCD, 0x77, 0xBB, 0xE6, 0x66, 0x03, 0xCB, 0xAF, 0xAB, 0x85, 0x45, 0xA0, 0x91, 0xAF, 0x34, 0x25}, .free_code_space_offset = 0x5FEC0, KERNEL_PATCHES(700) + }, + { /* 8.0.0. */ + .hash = {0x8C, 0x2E, 0x2C, 0x0D, 0x89, 0x19, 0x4A, 0x07, 0xF0, 0xE0, 0x7B, 0x44, 0xA7, 0x3D, 0x91, 0x81, 0x24, 0xFB, 0x67, 0x0D, 0x5B, 0xD5, 0x3F, 0x0F, 0x1C, 0xD3, 0x48, 0x06, 0x19, 0xD1, 0x27, 0xE6}, + .hash_size = 0x95000, + .free_code_space_offset = 0x607F0, + KERNEL_PATCHES(800) } }; @@ -607,10 +623,19 @@ uint8_t *search_pattern(void *_mem, size_t mem_size, const void *_pattern, size_ const kernel_info_t *get_kernel_info(void *kernel, size_t size) { uint8_t calculated_hash[0x20]; + uint8_t calculated_partial_hash[0x20]; se_calculate_sha256(calculated_hash, kernel, size); + for (unsigned int i = 0; i < sizeof(g_kernel_infos)/sizeof(kernel_info_t); i++) { - if (memcmp(calculated_hash, g_kernel_infos[i].hash, sizeof(calculated_hash)) == 0) { - return &g_kernel_infos[i]; + if (g_kernel_infos[i].hash_size == 0 || size <= g_kernel_infos[i].hash_size) { + if (memcmp(calculated_hash, g_kernel_infos[i].hash, sizeof(calculated_hash)) == 0) { + return &g_kernel_infos[i]; + } + } else { + se_calculate_sha256(calculated_partial_hash, kernel, g_kernel_infos[i].hash_size); + if (memcmp(calculated_partial_hash, g_kernel_infos[i].hash, sizeof(calculated_partial_hash)) == 0) { + return &g_kernel_infos[i]; + } } } return NULL;