Changes

Translate parameters are modified/translated transparently by the kernel. They are used to transfer handles/buffers between the different processes.

Translate parameters are modified/translated transparently by the kernel. They are used to transfer handles/buffers between the different processes.

The type of parameter is described by the bits 1-3 in the translation descriptor. Parameter types accepted by the kernel are: 0, 1, (2?), 5, 6, 7.

The type of parameter is described by the bits 1-3 in the translation descriptor. Parameter types accepted for sending by the kernel are: 0, 1, 2, 5, 6, 7.  

 

Type 0 is used to send handles across processes:

Type 0:

 

Type 0 does the following:

  if desc & 0x30 == 0x20:

  if desc & 0x30 == 0x20:

   write process id to value

   write process id to value

     close handle for caller

     close handle for caller

--

For replies, only 0, 1, 5, 6, 7 are allowed. In other words any type 2 fields must be zeroed before calling svcReplyAndReceive on the server-side. For replies type 0, 1, 2 are ignored. Types 5, 6, 7 do something with the mem pointer upon reply. The type 0 descriptor can be used to ignore parameters. The number of parameters covered by a type-0 descriptor is (desc >> 26) + 1.

{| class="wikitable" border="1"

{| class="wikitable" border="1"

|-

|-

| 0x00000000

| 0x00000000

| The corresponding value is a KHandle

| The corresponding value is a KHandle, that should be closed in calling process.

|-

|-

| 0x00000010

| 0x00000010

| The corresponding value is a KHandle, that should not be closed locally?

| The corresponding value is a KHandle, that will be shared/duplicated?

|-

|-

| 0x00000020

| 0x00000020

| Let kernel set value to local ProcessID

| Let kernel set value to calling process ProcessID

|-

|-

| 0x0000???2 <nowiki>|</nowiki> (size<<14)

| 0x0000???2 <nowiki>|</nowiki> (size<<14)