SceSblSsSmComm

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SceSblSsSmComm is a kernel module that is primary responsible for sending F00D commands.

Module

Known NIDs

Version Name World Privilege NID
1.69 SceSblSsSmComm Non-secure Kernel 0xA6A2A041
3.60 SceSblSsSmComm ? Kernel 0xBB4B5D92

Libraries

Known NIDs

Version Name World Visibility NID
1.69 SceSblSmCommForKernel Non-secure Kernel 0xCD3C89B6
3.60 SceSblSmCommForKernel ? Kernel 0xCD3C89B6
1.69 SceSblSsSmComm Non-secure User 0xD8DC7847

SceSblSmCommForKernel

sceSblSmCommStopSm

Version NID
1.69 0x0631F8ED
3.60 0x0631F8ED

This function calls sceSblSmCommCallFunc with -1 as command_id and then calls sceSblSmSchedProxyWait.

int sceSblSmCommStopSm(int id, int result[2]);

sceSblSmCommStartSmFromData

Version NID
1.69 0x992BB9DB
3.60 0x039C73B1
char hardcoded_data[0x90] =
{
   0x01,0x00,0x00,0x00, 0x00,0x00,0x08,0x28, // max AuthId
   0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,
   0x80,0x00,0x00,0x00, 0xC0,0x00,0xF0,0x00,
   0x00,0x00,0x00,0x00, 0xFF,0xFF,0xFF,0xFF,
   0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,
   0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,
   0x80,0x09,0x80,0x03, 0x00,0x00,0xC3,0x00,
   0x00,0x00,0x80,0x09, 0x80,0x00,0x00,0x00,
   0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,
   0x00,0x00,0x00,0x00, 0xFF,0xFF,0xFF,0xFF,
   0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,
   0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,
   0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,
   0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,
   0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,
   0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,
   0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,
   0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,
};

typedef struct SceSblSmCommContext130 {
   uint32_t unk_0;
   uint32_t self_type; // 2 - user = 1 / kernel = 0
   char data0[0x90]; //hardcoded data
   char data1[0x90];
   uint32_t pathId; // 2 (2 = os0)
   uint32_t unk_12C;
} SceSblSmCommContext130;

int sceSblSmCommStartSmFromData(int priority, const char *elf_data, int elf_size, int num1, SceSblSmCommContext130 *ctx_130, int* id);

sceSblSmCommStartSmFromFile

Version NID
3.60 0x7863A0CC
int sceSblSmCommStartSmFromFile(int priority, char* elf_path, int num1, SceSblSmCommContext130* ctx_130, int* id);

Priority is binary: 1 = low, 0 = high. Running a high priority SM module while a low priority one is currently running will suspend it.

sceSblSmCommCallFunc

Version NID
1.69 0xDB9FC204
3.60 0xDB9FC204

sm_comm_context is described more here

f00d_resp comes from Request Buffer from offset 0x08

gc_param is generated by game card and has value 0x01

typedef struct SceSblSmCommGcData {
	int unk_0; // 1
	int gc_command;
	char gc_buffer[0x800];
	int gc_param;
	int length;
	int unk_810; // 0
} SceSblSmCommGcData; /* size = 0x814 */

typedef struct SceSblSmCommMsifData {
	unsigned int unk00;
	unsigned int unk04;
	unsigned int unk08;
	unsigned int unk0C;
	unsigned int unk10;
	unsigned int unk14;
	unsigned int unk18;
	unsigned int unk1C;
} SceSblSmCommMsifData; /* size = 0x20 */

int sceSblSmCommCallFunc(int id, int command_id, int *f00d_resp, void *data, int size);

SceSblSsSmComm

sceSblSmCommStopSm

Version NID
1.69 0x631F8ED

sceSblSmCommStartSm_

Version NID
1.69 0x992BB9DB

sceSblSmCommCallFunc

Version NID
1.69 0xDB9FC204