SceSblGcAuthMgr: Difference between revisions

Revision as of 01:46, 7 June 2017

Module

Known NIDs

Version	Name	World	Privilege	NID
1.69	SceSblGcAuthMgr	Non-secure	Kernel	0x4B777EBC
3.60	SceSblGcAuthMgr	?	Kernel	0xDB1A9016

Libraries

Known NIDs

Version	Name	World	Visibility	NID
1.69	SceSblGcAuthMgrDrmBBForDriver	Non-secure	Kernel	0x1926B182
3.60	SceSblGcAuthMgrDrmBBForDriver	?	Kernel	0x1926B182
1.69	SceSblGcAuthMgrPcactForDriver	Non-secure	Kernel	0xB8600A5
1.69	SceSblGcAuthMgrMlnpsnlForDriver	Non-secure	Kernel	0x29ED0109
3.60	SceSblGcAuthMgrMlnpsnlForDriver	?	Kernel	0x29ED0109
1.69	SceSblGcAuthMgrAdhocBBForDriver	Non-secure	Kernel	0x2EFA9203
1.69	SceSblGcAuthMgrPkgForDriver	Non-secure	Kernel	0x82FBA7D
3.60	SceSblGcAuthMgrPkgForDriver	?	Kernel	0x082FBA7D
1.69	SceSblGcAuthMgrSclkForDriver	Non-secure	Kernel	0xF24F760D
3.60	SceSblGcAuthMgrSclkForDriver	?	Kernel	0xF24F760D
1.69	SceSblGcAuthMgrGcAuthForDriver	Non-secure	Kernel	0xC6627F5E
3.60	SceSblGcAuthMgrGcAuthForDriver	?	Kernel	0xC6627F5E
1.69	SceSblGcAuthMgr	Non-secure	User	0x7B13BCF7
3.60	SceSblGcAuthMgr	?	?	0x7B13BCF7
3.60	SceSblGcAuthMgrPsmactForDriver	?	Kernel	0x1C53F37D
3.60	SceSblGcAuthMgrMsSaveBBForDriver	?	Kernel	0x5032E8D4

Data segment layout

Address	Size	Description
0x0000	0x4BC4	unknown
0x4BC4	0x30	temp buffer for storing parts of cmd56 packets
0x4BF4	0x200	cmd56 request buffer
0x4DF4	0x04	packet6 gc parameter
0x4DF8	0x200	temp buffer for initializing cm56 req packets
0x4FF8	0x20	temp buffer for storing parts of cmd56 packets
0x5018	0x34	one of kirk responses
0x504C	0x200	cmd56 response buffer 1
0x524C	0x200	cmd56 response buffer 2
0x544C	0x20	one of kirk responses
0x546C	0x898	unknown

SceSblGcAuthMgrDrmBBForDriver

verify_checksum

Version	NID
3.60	0x22FD5D23

This function verifies that last responce from the card (cmd56) is valid

For example it is called from sceAppMgrGameDataMount

int verify_checksum(char* in_data);

Here is reversed code:


char resp_buffer[0x14]; //static buffer with response data

int verify_checksum(char* in_data)
{
   char* ib = in_data;
   char* rb = resp_buffer;
   char* rbe = rb + 0x14;
   
   int crc = 0;
   
   while(rb != rbe)
   {
       crc = crc | ((*ib) ^ (*rb));
       rb++;
       ib++;
   }
   
   if(crc == 0)
     return 0;
   else
     return 0x808A040A;
}

This is a timing safe memcmp. Xyz (talk) 10:02, 1 May 2017 (UTC)

clear_sensitive_data

Version	NID
3.60	0x812B2B5C

Clears some sensitive data.

Called after verify_checksum

int clear_sensitive_data(int* value);

clear_sensitive_data

Version	NID
3.60	0xBB451E83

Clears sensitive data that is left after cmd56 custom initialization.

This includes data generated by Kirk services 0x1C, 0x1F, 0x20 and packet6.

Called after initialize_sd_device

int clear_sensitive_data();

get_5018_data

Version	NID
3.60	0xBB70DDC0

This function copies first 0x20 bytes of the buffer to destination.

int get_5018_data(char* dest);

SceSblGcAuthMgrPcactForDriver

SceSblGcAuthMgrMlnpsnlForDriver

SceSblGcAuthMgrAdhocBBForDriver

SceSblGcAuthMgrPkgForDriver

SceSblGcAuthMgrSclkForDriver

SceSblGcAuthMgrGcAuthForDriver

initialize_sd_device

Version	NID
3.60	0x68781760

This is a wrapper function that starts initialization subroutine through run_execlusive

int initialize_sd_device(int sd_ctx_index);