mika/libnx
1
0
Fork 0
mirror of https://github.com/switchbrew/libnx.git synced 2025-07-04 18:42:15 +02:00
Code Issues Packages Projects Releases Wiki Activity

Avoid inline stuff in IPC

Browse Source
This commit is contained in:
XorTroll 2019-04-06 21:04:48 +02:00
parent 31dee5072a
commit 1cd4d194fa
2 changed files with 477 additions and 431 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

454
nx/include/switch/kernel/ipc.h
View File

@ -97,9 +97,7 @@ typedef struct {
* @brief Initializes an IPC command structure. * @brief Initializes an IPC command structure.
* @param cmd IPC command structure. * @param cmd IPC command structure.
*/ */
static inline void ipcInitialize(IpcCommand* cmd) { void ipcInitialize(IpcCommand* cmd);
*cmd = (IpcCommand){0};
}
/// IPC buffer descriptor. /// IPC buffer descriptor.
typedef struct { typedef struct {
@ -127,13 +125,7 @@ typedef struct {
* @param size Size of the buffer. * @param size Size of the buffer.
* @param type Buffer type. * @param type Buffer type.
*/ */
static inline void ipcAddSendBuffer(IpcCommand* cmd, const void* buffer, size_t size, BufferType type) { void ipcAddSendBuffer(IpcCommand* cmd, const void* buffer, size_t size, BufferType type);
size_t off = cmd->NumSend;
cmd->Buffers[off] = buffer;
cmd->BufferSizes[off] = size;
cmd->BufferTypes[off] = type;
cmd->NumSend++;
}
/** /**
* @brief Adds a receive-buffer to an IPC command structure. * @brief Adds a receive-buffer to an IPC command structure.
@ -142,13 +134,7 @@ static inline void ipcAddSendBuffer(IpcCommand* cmd, const void* buffer, size_t
* @param size Size of the buffer. * @param size Size of the buffer.
* @param type Buffer type. * @param type Buffer type.
*/ */
static inline void ipcAddRecvBuffer(IpcCommand* cmd, void* buffer, size_t size, BufferType type) { void ipcAddRecvBuffer(IpcCommand* cmd, void* buffer, size_t size, BufferType type);
size_t off = cmd->NumSend + cmd->NumRecv;
cmd->Buffers[off] = buffer;
cmd->BufferSizes[off] = size;
cmd->BufferTypes[off] = type;
cmd->NumRecv++;
}
/** /**
* @brief Adds an exchange-buffer to an IPC command structure. * @brief Adds an exchange-buffer to an IPC command structure.
@ -157,13 +143,7 @@ static inline void ipcAddRecvBuffer(IpcCommand* cmd, void* buffer, size_t size,
* @param size Size of the buffer. * @param size Size of the buffer.
* @param type Buffer type. * @param type Buffer type.
*/ */
static inline void ipcAddExchBuffer(IpcCommand* cmd, void* buffer, size_t size, BufferType type) { void ipcAddExchBuffer(IpcCommand* cmd, void* buffer, size_t size, BufferType type);
size_t off = cmd->NumSend + cmd->NumRecv + cmd->NumExch;
cmd->Buffers[off] = buffer;
cmd->BufferSizes[off] = size;
cmd->BufferTypes[off] = type;
cmd->NumExch++;
}
/** /**
* @brief Adds a static-buffer to an IPC command structure. * @brief Adds a static-buffer to an IPC command structure.
@ -172,13 +152,7 @@ static inline void ipcAddExchBuffer(IpcCommand* cmd, void* buffer, size_t size,
* @param size Size of the buffer. * @param size Size of the buffer.
* @param index Index of buffer. * @param index Index of buffer.
*/ */
static inline void ipcAddSendStatic(IpcCommand* cmd, const void* buffer, size_t size, u8 index) { void ipcAddSendStatic(IpcCommand* cmd, const void* buffer, size_t size, u8 index);
size_t off = cmd->NumStaticIn;
cmd->Statics[off] = buffer;
cmd->StaticSizes[off] = size;
cmd->StaticIndices[off] = index;
cmd->NumStaticIn++;
}
/** /**
* @brief Adds a static-receive-buffer to an IPC command structure. * @brief Adds a static-receive-buffer to an IPC command structure.
@ -187,14 +161,7 @@ static inline void ipcAddSendStatic(IpcCommand* cmd, const void* buffer, size_t
* @param size Size of the buffer. * @param size Size of the buffer.
* @param index Index of buffer. * @param index Index of buffer.
*/ */
static inline void ipcAddRecvStatic(IpcCommand* cmd, void* buffer, size_t size, u8 index) { void ipcAddRecvStatic(IpcCommand* cmd, void* buffer, size_t size, u8 index);
size_t off = cmd->NumStaticIn + cmd->NumStaticOut;
cmd->Statics[off] = buffer;
cmd->StaticSizes[off] = size;
cmd->StaticIndices[off] = index;
cmd->NumStaticOut++;
}
/** /**
* @brief Adds a smart-buffer (buffer + static-buffer pair) to an IPC command structure. * @brief Adds a smart-buffer (buffer + static-buffer pair) to an IPC command structure.
* @param cmd IPC command structure. * @param cmd IPC command structure.
@ -203,15 +170,7 @@ static inline void ipcAddRecvStatic(IpcCommand* cmd, void* buffer, size_t size,
* @param size Size of the buffer. * @param size Size of the buffer.
* @param index Index of buffer. * @param index Index of buffer.
*/ */
static inline void ipcAddSendSmart(IpcCommand* cmd, size_t ipc_buffer_size, const void* buffer, size_t size, u8 index) { void ipcAddSendSmart(IpcCommand* cmd, size_t ipc_buffer_size, const void* buffer, size_t size, u8 index);
if (ipc_buffer_size != 0 && size <= ipc_buffer_size) {
ipcAddSendBuffer(cmd, NULL, 0, BufferType_Normal);
ipcAddSendStatic(cmd, buffer, size, index);
} else {
ipcAddSendBuffer(cmd, buffer, size, BufferType_Normal);
ipcAddSendStatic(cmd, NULL, 0, index);
}
}
/** /**
* @brief Adds a smart-receive-buffer (buffer + static-receive-buffer pair) to an IPC command structure. * @brief Adds a smart-receive-buffer (buffer + static-receive-buffer pair) to an IPC command structure.
@ -221,23 +180,13 @@ static inline void ipcAddSendSmart(IpcCommand* cmd, size_t ipc_buffer_size, cons
* @param size Size of the buffer. * @param size Size of the buffer.
* @param index Index of buffer. * @param index Index of buffer.
*/ */
static inline void ipcAddRecvSmart(IpcCommand* cmd, size_t ipc_buffer_size, void* buffer, size_t size, u8 index) { void ipcAddRecvSmart(IpcCommand* cmd, size_t ipc_buffer_size, void* buffer, size_t size, u8 index);
if (ipc_buffer_size != 0 && size <= ipc_buffer_size) {
ipcAddRecvBuffer(cmd, NULL, 0, BufferType_Normal);
ipcAddRecvStatic(cmd, buffer, size, index);
} else {
ipcAddRecvBuffer(cmd, buffer, size, BufferType_Normal);
ipcAddRecvStatic(cmd, NULL, 0, index);
}
}
/** /**
* @brief Tags an IPC command structure to send the PID. * @brief Tags an IPC command structure to send the PID.
* @param cmd IPC command structure. * @param cmd IPC command structure.
*/ */
static inline void ipcSendPid(IpcCommand* cmd) { void ipcSendPid(IpcCommand* cmd);
cmd->SendPid = true;
}
/** /**
* @brief Adds a copy-handle to be sent through an IPC command structure. * @brief Adds a copy-handle to be sent through an IPC command structure.
@ -245,9 +194,7 @@ static inline void ipcSendPid(IpcCommand* cmd) {
* @param h Handle to send. * @param h Handle to send.
* @remark The receiving process gets a copy of the handle. * @remark The receiving process gets a copy of the handle.
*/ */
static inline void ipcSendHandleCopy(IpcCommand* cmd, Handle h) { void ipcSendHandleCopy(IpcCommand* cmd, Handle h);
cmd->Handles[cmd->NumHandlesCopy++] = h;
}
/** /**
* @brief Adds a move-handle to be sent through an IPC command structure. * @brief Adds a move-handle to be sent through an IPC command structure.
@ -255,9 +202,7 @@ static inline void ipcSendHandleCopy(IpcCommand* cmd, Handle h) {
* @param h Handle to send. * @param h Handle to send.
* @remark The sending process loses ownership of the handle, which is transferred to the receiving process. * @remark The sending process loses ownership of the handle, which is transferred to the receiving process.
*/ */
static inline void ipcSendHandleMove(IpcCommand* cmd, Handle h) { void ipcSendHandleMove(IpcCommand* cmd, Handle h);
cmd->Handles[cmd->NumHandlesCopy + cmd->NumHandlesMove++] = h;
}
/** /**
* @brief Prepares the header of an IPC command structure. * @brief Prepares the header of an IPC command structure.
@ -265,94 +210,14 @@ static inline void ipcSendHandleMove(IpcCommand* cmd, Handle h) {
* @param sizeof_raw Size in bytes of the raw data structure to embed inside the IPC request * @param sizeof_raw Size in bytes of the raw data structure to embed inside the IPC request
* @return Pointer to the raw embedded data structure in the request, ready to be filled out. * @return Pointer to the raw embedded data structure in the request, ready to be filled out.
*/ */
static inline void* ipcPrepareHeader(IpcCommand* cmd, size_t sizeof_raw) { void* ipcPrepareHeader(IpcCommand* cmd, size_t sizeof_raw);
u32* buf = (u32*)armGetTls();
size_t i;
*buf++ = IpcCommandType_Request | (cmd->NumStaticIn << 16) | (cmd->NumSend << 20) | (cmd->NumRecv << 24) | (cmd->NumExch << 28);
u32* fill_in_size_later = buf;
if (cmd->NumStaticOut > 0) {
*buf = (cmd->NumStaticOut + 2) << 10;
}
else {
*buf = 0;
}
if (cmd->SendPid || cmd->NumHandlesCopy > 0 || cmd->NumHandlesMove > 0) {
*buf++ |= 0x80000000;
*buf++ = (!!cmd->SendPid) | (cmd->NumHandlesCopy << 1) | (cmd->NumHandlesMove << 5);
if (cmd->SendPid)
buf += 2;
for (i=0; i<(cmd->NumHandlesCopy + cmd->NumHandlesMove); i++)
*buf++ = cmd->Handles[i];
}
else {
buf++;
}
for (i=0; i<cmd->NumStaticIn; i++, buf+=2) {
IpcStaticSendDescriptor* desc = (IpcStaticSendDescriptor*) buf;
uintptr_t ptr = (uintptr_t) cmd->Statics[i];
desc->Addr = ptr;
desc->Packed = cmd->StaticIndices[i] | (cmd->StaticSizes[i] << 16) |
(((ptr >> 32) & 15) << 12) | (((ptr >> 36) & 15) << 6);
}
for (i=0; i<(cmd->NumSend + cmd->NumRecv + cmd->NumExch); i++, buf+=3) {
IpcBufferDescriptor* desc = (IpcBufferDescriptor*) buf;
desc->Size = cmd->BufferSizes[i];
uintptr_t ptr = (uintptr_t) cmd->Buffers[i];
desc->Addr = ptr;
desc->Packed = cmd->BufferTypes[i] |
(((ptr >> 32) & 15) << 28) | ((ptr >> 36) << 2);
}
u32 padding = ((16 - (((uintptr_t) buf) & 15)) & 15) / 4;
u32* raw = (u32*) (buf + padding);
size_t raw_size = (sizeof_raw/4) + 4;
buf += raw_size;
u16* buf_u16 = (u16*) buf;
for (i=0; i<cmd->NumStaticOut; i++) {
size_t off = cmd->NumStaticIn + i;
size_t sz = (uintptr_t) cmd->StaticSizes[off];
buf_u16[i] = (sz > 0xFFFF) ? 0 : sz;
}
size_t u16s_size = ((2*cmd->NumStaticOut) + 3)/4;
buf += u16s_size;
raw_size += u16s_size;
*fill_in_size_later |= raw_size;
for (i=0; i<cmd->NumStaticOut; i++, buf+=2) {
IpcStaticRecvDescriptor* desc = (IpcStaticRecvDescriptor*) buf;
size_t off = cmd->NumStaticIn + i;
uintptr_t ptr = (uintptr_t) cmd->Statics[off];
desc->Addr = ptr;
desc->Packed = (ptr >> 32) | (cmd->StaticSizes[off] << 16);
}
return (void*) raw;
}
/** /**
* @brief Dispatches an IPC request. * @brief Dispatches an IPC request.
* @param session IPC session handle. * @param session IPC session handle.
* @return Result code. * @return Result code.
*/ */
static inline Result ipcDispatch(Handle session) { Result ipcDispatch(Handle session);
return svcSendSyncRequest(session);
}
///@} ///@}
@ -404,100 +269,7 @@ typedef struct {
* @param r IPC parsed command structure to fill in. * @param r IPC parsed command structure to fill in.
* @return Result code. * @return Result code.
*/ */
static inline Result ipcParse(IpcParsedCommand* r) { Result ipcParse(IpcParsedCommand* r);
u32* buf = (u32*)armGetTls();
u32 ctrl0 = *buf++;
u32 ctrl1 = *buf++;
size_t i;
r->IsDomainRequest = false;
r->IsDomainResponse = false;
r->CommandType = (IpcCommandType) (ctrl0 & 0xffff);
r->HasPid = false;
r->RawSize = (ctrl1 & 0x1ff) * 4;
r->NumHandles = 0;
r->NumStaticsOut = (ctrl1 >> 10) & 15;
if (r->NumStaticsOut >> 1) r->NumStaticsOut--; // Value 2 -> Single descriptor
if (r->NumStaticsOut >> 1) r->NumStaticsOut--; // Value 3+ -> (Value - 2) descriptors
if (ctrl1 & 0x80000000) {
u32 ctrl2 = *buf++;
if (ctrl2 & 1) {
r->HasPid = true;
r->Pid = *buf++;
r->Pid |= ((u64)(*buf++)) << 32;
}
size_t num_handles_copy = ((ctrl2 >> 1) & 15);
size_t num_handles_move = ((ctrl2 >> 5) & 15);
size_t num_handles = num_handles_copy + num_handles_move;
u32* buf_after_handles = buf + num_handles;
if (num_handles > IPC_MAX_OBJECTS)
num_handles = IPC_MAX_OBJECTS;
for (i=0; i<num_handles; i++)
{
r->Handles[i] = *(buf+i);
r->WasHandleCopied[i] = (i < num_handles_copy);
}
r->NumHandles = num_handles;
buf = buf_after_handles;
}
size_t num_statics = (ctrl0 >> 16) & 15;
u32* buf_after_statics = buf + num_statics*2;
if (num_statics > IPC_MAX_BUFFERS)
num_statics = IPC_MAX_BUFFERS;
for (i=0; i<num_statics; i++, buf+=2) {
IpcStaticSendDescriptor* desc = (IpcStaticSendDescriptor*) buf;
u64 packed = (u64) desc->Packed;
r->Statics[i] = (void*) (desc->Addr | (((packed >> 12) & 15) << 32) | (((packed >> 6) & 15) << 36));
r->StaticSizes[i] = packed >> 16;
r->StaticIndices[i] = packed & 63;
}
r->NumStatics = num_statics;
buf = buf_after_statics;
size_t num_bufs_send = (ctrl0 >> 20) & 15;
size_t num_bufs_recv = (ctrl0 >> 24) & 15;
size_t num_bufs_exch = (ctrl0 >> 28) & 15;
size_t num_bufs = num_bufs_send + num_bufs_recv + num_bufs_exch;
r->Raw = (void*)(((uintptr_t)(buf + num_bufs*3) + 15) &~ 15);
r->RawWithoutPadding = (void*)((uintptr_t)(buf + num_bufs*3));
if (num_bufs > IPC_MAX_BUFFERS)
num_bufs = IPC_MAX_BUFFERS;
for (i=0; i<num_bufs; i++, buf+=3) {
IpcBufferDescriptor* desc = (IpcBufferDescriptor*) buf;
u64 packed = (u64) desc->Packed;
r->Buffers[i] = (void*) (desc->Addr | ((packed >> 28) << 32) | (((packed >> 2) & 15) << 36));
r->BufferSizes[i] = desc->Size;
r->BufferTypes[i] = (BufferType) (packed & 3);
if (i < num_bufs_send)
r->BufferDirections[i] = BufferDirection_Send;
else if (i < (num_bufs_send + num_bufs_recv))
r->BufferDirections[i] = BufferDirection_Recv;
else
r->BufferDirections[i] = BufferDirection_Exch;
}
r->NumBuffers = num_bufs;
return 0;
}
/** /**
* @brief Queries the size of an IPC pointer buffer. * @brief Queries the size of an IPC pointer buffer.
@ -505,51 +277,14 @@ static inline Result ipcParse(IpcParsedCommand* r) {
* @param size Output variable in which to store the size. * @param size Output variable in which to store the size.
* @return Result code. * @return Result code.
*/ */
static inline Result ipcQueryPointerBufferSize(Handle session, size_t *size) { Result ipcQueryPointerBufferSize(Handle session, size_t *size);
u32* buf = (u32*)armGetTls();
buf[0] = IpcCommandType_Control;
buf[1] = 8;
buf[2] = 0;
buf[3] = 0;
buf[4] = SFCI_MAGIC;
buf[5] = 0;
buf[6] = 3;
buf[7] = 0;
Result rc = ipcDispatch(session);
if (R_SUCCEEDED(rc)) {
IpcParsedCommand r;
ipcParse(&r);
struct ipcQueryPointerBufferSizeResponse {
u64 magic;
u64 result;
u32 size;
} *raw = (struct ipcQueryPointerBufferSizeResponse*)r.Raw;
rc = raw->result;
if (R_SUCCEEDED(rc)) {
*size = raw->size & 0xffff;
}
}
return rc;
}
/** /**
* @brief Closes the IPC session with proper clean up. * @brief Closes the IPC session with proper clean up.
* @param session IPC session handle. * @param session IPC session handle.
* @return Result code. * @return Result code.
*/ */
static inline Result ipcCloseSession(Handle session) { Result ipcCloseSession(Handle session);
u32* buf = (u32*)armGetTls();
buf[0] = IpcCommandType_Close;
buf[1] = 0;
return ipcDispatch(session);
}
/** /**
* @brief Clones an IPC session. * @brief Clones an IPC session.
@ -558,39 +293,7 @@ static inline Result ipcCloseSession(Handle session) {
* @param new_session_out Output cloned IPC session handle. * @param new_session_out Output cloned IPC session handle.
* @return Result code. * @return Result code.
*/ */
static inline Result ipcCloneSession(Handle session, u32 unk, Handle* new_session_out) { Result ipcCloneSession(Handle session, u32 unk, Handle* new_session_out);
u32* buf = (u32*)armGetTls();
buf[0] = IpcCommandType_Control;
buf[1] = 9;
buf[2] = 0;
buf[3] = 0;
buf[4] = SFCI_MAGIC;
buf[5] = 0;
buf[6] = 4;
buf[7] = 0;
buf[8] = unk;
Result rc = ipcDispatch(session);
if (R_SUCCEEDED(rc)) {
IpcParsedCommand r;
ipcParse(&r);
struct ipcCloneSessionResponse {
u64 magic;
u64 result;
} *raw = (struct ipcCloneSessionResponse*)r.Raw;
rc = raw->result;
if (R_SUCCEEDED(rc) && new_session_out) {
*new_session_out = r.Handles[0];
}
}
return rc;
}
///@} ///@}
@ -603,46 +306,14 @@ static inline Result ipcCloneSession(Handle session, u32 unk, Handle* new_sessio
* @param object_id_out Output variable in which to store the object ID. * @param object_id_out Output variable in which to store the object ID.
* @return Result code. * @return Result code.
*/ */
static inline Result ipcConvertSessionToDomain(Handle session, u32* object_id_out) { Result ipcConvertSessionToDomain(Handle session, u32* object_id_out);
u32* buf = (u32*)armGetTls();
buf[0] = IpcCommandType_Control;
buf[1] = 8;
buf[4] = SFCI_MAGIC;
buf[5] = 0;
buf[6] = 0;
buf[7] = 0;
Result rc = ipcDispatch(session);
if (R_SUCCEEDED(rc)) {
IpcParsedCommand r;
ipcParse(&r);
struct ipcConvertSessionToDomainResponse {
u64 magic;
u64 result;
u32 object_id;
} *raw = (struct ipcConvertSessionToDomainResponse*)r.Raw;
rc = raw->result;
if (R_SUCCEEDED(rc)) {
*object_id_out = raw->object_id;
}
}
return rc;
}
/** /**
* @brief Adds an object ID to be sent through an IPC domain command structure. * @brief Adds an object ID to be sent through an IPC domain command structure.
* @param cmd IPC domain command structure. * @param cmd IPC domain command structure.
* @param object_id Object ID to send. * @param object_id Object ID to send.
*/ */
static inline void ipcSendObjectId(IpcCommand* cmd, u32 object_id) { void ipcSendObjectId(IpcCommand* cmd, u32 object_id);
cmd->ObjectIds[cmd->NumObjectIds++] = object_id;
}
/** /**
* @brief Prepares the header of an IPC command structure (domain version). * @brief Prepares the header of an IPC command structure (domain version).
@ -651,58 +322,14 @@ static inline void ipcSendObjectId(IpcCommand* cmd, u32 object_id) {
* @param object_id Domain object ID. * @param object_id Domain object ID.
* @return Pointer to the raw embedded data structure in the request, ready to be filled out. * @return Pointer to the raw embedded data structure in the request, ready to be filled out.
*/ */
static inline void* ipcPrepareHeaderForDomain(IpcCommand* cmd, size_t sizeof_raw, u32 object_id) { void* ipcPrepareHeaderForDomain(IpcCommand* cmd, size_t sizeof_raw, u32 object_id);
void* raw = ipcPrepareHeader(cmd, sizeof_raw + sizeof(DomainMessageHeader) + cmd->NumObjectIds*sizeof(u32));
DomainMessageHeader* hdr = (DomainMessageHeader*) raw;
u32 *object_ids = (u32*)(((uintptr_t) raw) + sizeof(DomainMessageHeader) + sizeof_raw);
hdr->Type = DomainMessageType_SendMessage;
hdr->NumObjectIds = (u8)cmd->NumObjectIds;
hdr->Length = sizeof_raw;
hdr->ThisObjectId = object_id;
hdr->Pad[0] = hdr->Pad[1] = 0;
for(size_t i = 0; i < cmd->NumObjectIds; i++)
object_ids[i] = cmd->ObjectIds[i];
return (void*)(((uintptr_t) raw) + sizeof(DomainMessageHeader));
}
/** /**
* @brief Parse an IPC command request into an IPC parsed command structure (domain version). * @brief Parse an IPC command request into an IPC parsed command structure (domain version).
* @param r IPC parsed command structure to fill in. * @param r IPC parsed command structure to fill in.
* @return Result code. * @return Result code.
*/ */
static inline Result ipcParseDomainRequest(IpcParsedCommand* r) { Result ipcParseDomainRequest(IpcParsedCommand* r);
Result rc = ipcParse(r);
DomainMessageHeader *hdr;
u32 *object_ids;
if(R_FAILED(rc))
return rc;
hdr = (DomainMessageHeader*) r->Raw;
object_ids = (u32*)(((uintptr_t) hdr) + sizeof(DomainMessageHeader) + hdr->Length);
r->Raw = (void*)(((uintptr_t) r->Raw) + sizeof(DomainMessageHeader));
r->IsDomainRequest = true;
r->InMessageType = (DomainMessageType)(hdr->Type);
switch (r->InMessageType) {
case DomainMessageType_SendMessage:
case DomainMessageType_Close:
break;
default:
return MAKERESULT(Module_Libnx, LibnxError_DomainMessageUnknownType);
}
r->InThisObjectId = hdr->ThisObjectId;
r->InNumObjectIds = hdr->NumObjectIds > 8 ? 8 : hdr->NumObjectIds;
if ((uintptr_t)object_ids + sizeof(u32) * r->InNumObjectIds - (uintptr_t)armGetTls() >= 0x100) {
return MAKERESULT(Module_Libnx, LibnxError_DomainMessageTooManyObjectIds);
}
for(size_t i = 0; i < r->InNumObjectIds; i++)
r->InObjectIds[i] = object_ids[i];
return rc;
}
/** /**
* @brief Parse an IPC command response into an IPC parsed command structure (domain version). * @brief Parse an IPC command response into an IPC parsed command structure (domain version).
@ -710,28 +337,7 @@ static inline Result ipcParseDomainRequest(IpcParsedCommand* r) {
* @param sizeof_raw Size in bytes of the raw data structure. * @param sizeof_raw Size in bytes of the raw data structure.
* @return Result code. * @return Result code.
*/ */
static inline Result ipcParseDomainResponse(IpcParsedCommand* r, size_t sizeof_raw) { Result ipcParseDomainResponse(IpcParsedCommand* r, size_t sizeof_raw);
Result rc = ipcParse(r);
DomainResponseHeader *hdr;
u32 *object_ids;
if(R_FAILED(rc))
return rc;
hdr = (DomainResponseHeader*) r->Raw;
r->Raw = (void*)(((uintptr_t) r->Raw) + sizeof(DomainResponseHeader));
object_ids = (u32*)(((uintptr_t) r->Raw) + sizeof_raw);//Official sw doesn't align this.
r->IsDomainResponse = true;
r->OutNumObjectIds = hdr->NumObjectIds > 8 ? 8 : hdr->NumObjectIds;
if ((uintptr_t)object_ids + sizeof(u32) * r->OutNumObjectIds - (uintptr_t)armGetTls() >= 0x100) {
return MAKERESULT(Module_Libnx, LibnxError_DomainMessageTooManyObjectIds);
}
for(size_t i = 0; i < r->OutNumObjectIds; i++)
r->OutObjectIds[i] = object_ids[i];
return rc;
}
/** /**
* @brief Closes a domain object by ID. * @brief Closes a domain object by ID.
@ -739,20 +345,6 @@ static inline Result ipcParseDomainResponse(IpcParsedCommand* r, size_t sizeof_r
* @param object_id ID of the object to close. * @param object_id ID of the object to close.
* @return Result code. * @return Result code.
*/ */
static inline Result ipcCloseObjectById(Handle session, u32 object_id) { Result ipcCloseObjectById(Handle session, u32 object_id);
IpcCommand c;
DomainMessageHeader* hdr;
ipcInitialize(&c);
hdr = (DomainMessageHeader*)ipcPrepareHeader(&c, sizeof(DomainMessageHeader));
hdr->Type = DomainMessageType_Close;
hdr->NumObjectIds = 0;
hdr->Length = 0;
hdr->ThisObjectId = object_id;
hdr->Pad[0] = hdr->Pad[1] = 0;
return ipcDispatch(session); // this command has no associated response
}
///@} ///@}

454
nx/source/kernel/ipc.c Normal file
View File

@ -0,0 +1,454 @@
#include "kernel/ipc.h"
void ipcInitialize(IpcCommand* cmd) {
*cmd = (IpcCommand){0};
}
void ipcAddSendBuffer(IpcCommand* cmd, const void* buffer, size_t size, BufferType type) {
size_t off = cmd->NumSend;
cmd->Buffers[off] = buffer;
cmd->BufferSizes[off] = size;
cmd->BufferTypes[off] = type;
cmd->NumSend++;
}
void ipcAddRecvBuffer(IpcCommand* cmd, void* buffer, size_t size, BufferType type) {
size_t off = cmd->NumSend + cmd->NumRecv;
cmd->Buffers[off] = buffer;
cmd->BufferSizes[off] = size;
cmd->BufferTypes[off] = type;
cmd->NumRecv++;
}
void ipcAddExchBuffer(IpcCommand* cmd, void* buffer, size_t size, BufferType type) {
size_t off = cmd->NumSend + cmd->NumRecv + cmd->NumExch;
cmd->Buffers[off] = buffer;
cmd->BufferSizes[off] = size;
cmd->BufferTypes[off] = type;
cmd->NumExch++;
}
void ipcAddSendStatic(IpcCommand* cmd, const void* buffer, size_t size, u8 index) {
size_t off = cmd->NumStaticIn;
cmd->Statics[off] = buffer;
cmd->StaticSizes[off] = size;
cmd->StaticIndices[off] = index;
cmd->NumStaticIn++;
}
void ipcAddRecvStatic(IpcCommand* cmd, void* buffer, size_t size, u8 index) {
size_t off = cmd->NumStaticIn + cmd->NumStaticOut;
cmd->Statics[off] = buffer;
cmd->StaticSizes[off] = size;
cmd->StaticIndices[off] = index;
cmd->NumStaticOut++;
}
void ipcAddSendSmart(IpcCommand* cmd, size_t ipc_buffer_size, const void* buffer, size_t size, u8 index) {
if (ipc_buffer_size != 0 && size <= ipc_buffer_size) {
ipcAddSendBuffer(cmd, NULL, 0, BufferType_Normal);
ipcAddSendStatic(cmd, buffer, size, index);
} else {
ipcAddSendBuffer(cmd, buffer, size, BufferType_Normal);
ipcAddSendStatic(cmd, NULL, 0, index);
}
}
void ipcAddRecvSmart(IpcCommand* cmd, size_t ipc_buffer_size, void* buffer, size_t size, u8 index) {
if (ipc_buffer_size != 0 && size <= ipc_buffer_size) {
ipcAddRecvBuffer(cmd, NULL, 0, BufferType_Normal);
ipcAddRecvStatic(cmd, buffer, size, index);
} else {
ipcAddRecvBuffer(cmd, buffer, size, BufferType_Normal);
ipcAddRecvStatic(cmd, NULL, 0, index);
}
}
void ipcSendPid(IpcCommand* cmd) {
cmd->SendPid = true;
}
void ipcSendHandleCopy(IpcCommand* cmd, Handle h) {
cmd->Handles[cmd->NumHandlesCopy++] = h;
}
void ipcSendHandleMove(IpcCommand* cmd, Handle h) {
cmd->Handles[cmd->NumHandlesCopy + cmd->NumHandlesMove++] = h;
}
void* ipcPrepareHeader(IpcCommand* cmd, size_t sizeof_raw) {
u32* buf = (u32*)armGetTls();
size_t i;
*buf++ = IpcCommandType_Request | (cmd->NumStaticIn << 16) | (cmd->NumSend << 20) | (cmd->NumRecv << 24) | (cmd->NumExch << 28);
u32* fill_in_size_later = buf;
if (cmd->NumStaticOut > 0) {
*buf = (cmd->NumStaticOut + 2) << 10;
}
else {
*buf = 0;
}
if (cmd->SendPid || cmd->NumHandlesCopy > 0 || cmd->NumHandlesMove > 0) {
*buf++ |= 0x80000000;
*buf++ = (!!cmd->SendPid) | (cmd->NumHandlesCopy << 1) | (cmd->NumHandlesMove << 5);
if (cmd->SendPid)
buf += 2;
for (i=0; i<(cmd->NumHandlesCopy + cmd->NumHandlesMove); i++)
*buf++ = cmd->Handles[i];
}
else {
buf++;
}
for (i=0; i<cmd->NumStaticIn; i++, buf+=2) {
IpcStaticSendDescriptor* desc = (IpcStaticSendDescriptor*) buf;
uintptr_t ptr = (uintptr_t) cmd->Statics[i];
desc->Addr = ptr;
desc->Packed = cmd->StaticIndices[i] | (cmd->StaticSizes[i] << 16) |
(((ptr >> 32) & 15) << 12) | (((ptr >> 36) & 15) << 6);
}
for (i=0; i<(cmd->NumSend + cmd->NumRecv + cmd->NumExch); i++, buf+=3) {
IpcBufferDescriptor* desc = (IpcBufferDescriptor*) buf;
desc->Size = cmd->BufferSizes[i];
uintptr_t ptr = (uintptr_t) cmd->Buffers[i];
desc->Addr = ptr;
desc->Packed = cmd->BufferTypes[i] |
(((ptr >> 32) & 15) << 28) | ((ptr >> 36) << 2);
}
u32 padding = ((16 - (((uintptr_t) buf) & 15)) & 15) / 4;
u32* raw = (u32*) (buf + padding);
size_t raw_size = (sizeof_raw/4) + 4;
buf += raw_size;
u16* buf_u16 = (u16*) buf;
for (i=0; i<cmd->NumStaticOut; i++) {
size_t off = cmd->NumStaticIn + i;
size_t sz = (uintptr_t) cmd->StaticSizes[off];
buf_u16[i] = (sz > 0xFFFF) ? 0 : sz;
}
size_t u16s_size = ((2*cmd->NumStaticOut) + 3)/4;
buf += u16s_size;
raw_size += u16s_size;
*fill_in_size_later |= raw_size;
for (i=0; i<cmd->NumStaticOut; i++, buf+=2) {
IpcStaticRecvDescriptor* desc = (IpcStaticRecvDescriptor*) buf;
size_t off = cmd->NumStaticIn + i;
uintptr_t ptr = (uintptr_t) cmd->Statics[off];
desc->Addr = ptr;
desc->Packed = (ptr >> 32) | (cmd->StaticSizes[off] << 16);
}
return (void*) raw;
}
Result ipcDispatch(Handle session) {
return svcSendSyncRequest(session);
}
Result ipcParse(IpcParsedCommand* r) {
u32* buf = (u32*)armGetTls();
u32 ctrl0 = *buf++;
u32 ctrl1 = *buf++;
size_t i;
r->IsDomainRequest = false;
r->IsDomainResponse = false;
r->CommandType = (IpcCommandType) (ctrl0 & 0xffff);
r->HasPid = false;
r->RawSize = (ctrl1 & 0x1ff) * 4;
r->NumHandles = 0;
r->NumStaticsOut = (ctrl1 >> 10) & 15;
if (r->NumStaticsOut >> 1) r->NumStaticsOut--; // Value 2 -> Single descriptor
if (r->NumStaticsOut >> 1) r->NumStaticsOut--; // Value 3+ -> (Value - 2) descriptors
if (ctrl1 & 0x80000000) {
u32 ctrl2 = *buf++;
if (ctrl2 & 1) {
r->HasPid = true;
r->Pid = *buf++;
r->Pid |= ((u64)(*buf++)) << 32;
}
size_t num_handles_copy = ((ctrl2 >> 1) & 15);
size_t num_handles_move = ((ctrl2 >> 5) & 15);
size_t num_handles = num_handles_copy + num_handles_move;
u32* buf_after_handles = buf + num_handles;
if (num_handles > IPC_MAX_OBJECTS)
num_handles = IPC_MAX_OBJECTS;
for (i=0; i<num_handles; i++)
{
r->Handles[i] = *(buf+i);
r->WasHandleCopied[i] = (i < num_handles_copy);
}
r->NumHandles = num_handles;
buf = buf_after_handles;
}
size_t num_statics = (ctrl0 >> 16) & 15;
u32* buf_after_statics = buf + num_statics*2;
if (num_statics > IPC_MAX_BUFFERS)
num_statics = IPC_MAX_BUFFERS;
for (i=0; i<num_statics; i++, buf+=2) {
IpcStaticSendDescriptor* desc = (IpcStaticSendDescriptor*) buf;
u64 packed = (u64) desc->Packed;
r->Statics[i] = (void*) (desc->Addr | (((packed >> 12) & 15) << 32) | (((packed >> 6) & 15) << 36));
r->StaticSizes[i] = packed >> 16;
r->StaticIndices[i] = packed & 63;
}
r->NumStatics = num_statics;
buf = buf_after_statics;
size_t num_bufs_send = (ctrl0 >> 20) & 15;
size_t num_bufs_recv = (ctrl0 >> 24) & 15;
size_t num_bufs_exch = (ctrl0 >> 28) & 15;
size_t num_bufs = num_bufs_send + num_bufs_recv + num_bufs_exch;
r->Raw = (void*)(((uintptr_t)(buf + num_bufs*3) + 15) &~ 15);
r->RawWithoutPadding = (void*)((uintptr_t)(buf + num_bufs*3));
if (num_bufs > IPC_MAX_BUFFERS)
num_bufs = IPC_MAX_BUFFERS;
for (i=0; i<num_bufs; i++, buf+=3) {
IpcBufferDescriptor* desc = (IpcBufferDescriptor*) buf;
u64 packed = (u64) desc->Packed;
r->Buffers[i] = (void*) (desc->Addr | ((packed >> 28) << 32) | (((packed >> 2) & 15) << 36));
r->BufferSizes[i] = desc->Size;
r->BufferTypes[i] = (BufferType) (packed & 3);
if (i < num_bufs_send)
r->BufferDirections[i] = BufferDirection_Send;
else if (i < (num_bufs_send + num_bufs_recv))
r->BufferDirections[i] = BufferDirection_Recv;
else
r->BufferDirections[i] = BufferDirection_Exch;
}
r->NumBuffers = num_bufs;
return 0;
}
Result ipcQueryPointerBufferSize(Handle session, size_t *size) {
u32* buf = (u32*)armGetTls();
buf[0] = IpcCommandType_Control;
buf[1] = 8;
buf[2] = 0;
buf[3] = 0;
buf[4] = SFCI_MAGIC;
buf[5] = 0;
buf[6] = 3;
buf[7] = 0;
Result rc = ipcDispatch(session);
if (R_SUCCEEDED(rc)) {
IpcParsedCommand r;
ipcParse(&r);
struct ipcQueryPointerBufferSizeResponse {
u64 magic;
u64 result;
u32 size;
} *raw = (struct ipcQueryPointerBufferSizeResponse*)r.Raw;
rc = raw->result;
if (R_SUCCEEDED(rc)) {
*size = raw->size & 0xffff;
}
}
return rc;
}
Result ipcCloseSession(Handle session) {
u32* buf = (u32*)armGetTls();
buf[0] = IpcCommandType_Close;
buf[1] = 0;
return ipcDispatch(session);
}
Result ipcCloneSession(Handle session, u32 unk, Handle* new_session_out) {
u32* buf = (u32*)armGetTls();
buf[0] = IpcCommandType_Control;
buf[1] = 9;
buf[2] = 0;
buf[3] = 0;
buf[4] = SFCI_MAGIC;
buf[5] = 0;
buf[6] = 4;
buf[7] = 0;
buf[8] = unk;
Result rc = ipcDispatch(session);
if (R_SUCCEEDED(rc)) {
IpcParsedCommand r;
ipcParse(&r);
struct ipcCloneSessionResponse {
u64 magic;
u64 result;
} *raw = (struct ipcCloneSessionResponse*)r.Raw;
rc = raw->result;
if (R_SUCCEEDED(rc) && new_session_out) {
*new_session_out = r.Handles[0];
}
}
return rc;
}
Result ipcConvertSessionToDomain(Handle session, u32* object_id_out) {
u32* buf = (u32*)armGetTls();
buf[0] = IpcCommandType_Control;
buf[1] = 8;
buf[4] = SFCI_MAGIC;
buf[5] = 0;
buf[6] = 0;
buf[7] = 0;
Result rc = ipcDispatch(session);
if (R_SUCCEEDED(rc)) {
IpcParsedCommand r;
ipcParse(&r);
struct ipcConvertSessionToDomainResponse {
u64 magic;
u64 result;
u32 object_id;
} *raw = (struct ipcConvertSessionToDomainResponse*)r.Raw;
rc = raw->result;
if (R_SUCCEEDED(rc)) {
*object_id_out = raw->object_id;
}
}
return rc;
}
void ipcSendObjectId(IpcCommand* cmd, u32 object_id) {
cmd->ObjectIds[cmd->NumObjectIds++] = object_id;
}
void* ipcPrepareHeaderForDomain(IpcCommand* cmd, size_t sizeof_raw, u32 object_id) {
void* raw = ipcPrepareHeader(cmd, sizeof_raw + sizeof(DomainMessageHeader) + cmd->NumObjectIds*sizeof(u32));
DomainMessageHeader* hdr = (DomainMessageHeader*) raw;
u32 *object_ids = (u32*)(((uintptr_t) raw) + sizeof(DomainMessageHeader) + sizeof_raw);
hdr->Type = DomainMessageType_SendMessage;
hdr->NumObjectIds = (u8)cmd->NumObjectIds;
hdr->Length = sizeof_raw;
hdr->ThisObjectId = object_id;
hdr->Pad[0] = hdr->Pad[1] = 0;
for(size_t i = 0; i < cmd->NumObjectIds; i++)
object_ids[i] = cmd->ObjectIds[i];
return (void*)(((uintptr_t) raw) + sizeof(DomainMessageHeader));
}
Result ipcParseDomainRequest(IpcParsedCommand* r) {
Result rc = ipcParse(r);
DomainMessageHeader *hdr;
u32 *object_ids;
if(R_FAILED(rc))
return rc;
hdr = (DomainMessageHeader*) r->Raw;
object_ids = (u32*)(((uintptr_t) hdr) + sizeof(DomainMessageHeader) + hdr->Length);
r->Raw = (void*)(((uintptr_t) r->Raw) + sizeof(DomainMessageHeader));
r->IsDomainRequest = true;
r->InMessageType = (DomainMessageType)(hdr->Type);
switch (r->InMessageType) {
case DomainMessageType_SendMessage:
case DomainMessageType_Close:
break;
default:
return MAKERESULT(Module_Libnx, LibnxError_DomainMessageUnknownType);
}
r->InThisObjectId = hdr->ThisObjectId;
r->InNumObjectIds = hdr->NumObjectIds > 8 ? 8 : hdr->NumObjectIds;
if ((uintptr_t)object_ids + sizeof(u32) * r->InNumObjectIds - (uintptr_t)armGetTls() >= 0x100) {
return MAKERESULT(Module_Libnx, LibnxError_DomainMessageTooManyObjectIds);
}
for(size_t i = 0; i < r->InNumObjectIds; i++)
r->InObjectIds[i] = object_ids[i];
return rc;
}
Result ipcParseDomainResponse(IpcParsedCommand* r, size_t sizeof_raw) {
Result rc = ipcParse(r);
DomainResponseHeader *hdr;
u32 *object_ids;
if(R_FAILED(rc))
return rc;
hdr = (DomainResponseHeader*) r->Raw;
r->Raw = (void*)(((uintptr_t) r->Raw) + sizeof(DomainResponseHeader));
object_ids = (u32*)(((uintptr_t) r->Raw) + sizeof_raw);//Official sw doesn't align this.
r->IsDomainResponse = true;
r->OutNumObjectIds = hdr->NumObjectIds > 8 ? 8 : hdr->NumObjectIds;
if ((uintptr_t)object_ids + sizeof(u32) * r->OutNumObjectIds - (uintptr_t)armGetTls() >= 0x100) {
return MAKERESULT(Module_Libnx, LibnxError_DomainMessageTooManyObjectIds);
}
for(size_t i = 0; i < r->OutNumObjectIds; i++)
r->OutObjectIds[i] = object_ids[i];
return rc;
}
Result ipcCloseObjectById(Handle session, u32 object_id) {
IpcCommand c;
DomainMessageHeader* hdr;
ipcInitialize(&c);
hdr = (DomainMessageHeader*)ipcPrepareHeader(&c, sizeof(DomainMessageHeader));
hdr->Type = DomainMessageType_Close;
hdr->NumObjectIds = 0;
hdr->Length = 0;
hdr->ThisObjectId = object_id;
hdr->Pad[0] = hdr->Pad[1] = 0;
return ipcDispatch(session); // this command has no associated response
}