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-rw-r--r--src/core/hle/ipc_helpers.h1
-rw-r--r--src/core/hle/kernel/hle_ipc.cpp14
-rw-r--r--src/core/hle/kernel/hle_ipc.h1
3 files changed, 15 insertions, 1 deletions
diff --git a/src/core/hle/ipc_helpers.h b/src/core/hle/ipc_helpers.h
index f235153c3..5fed3dbf5 100644
--- a/src/core/hle/ipc_helpers.h
+++ b/src/core/hle/ipc_helpers.h
@@ -108,6 +108,7 @@ public:
header.type.Assign(ctx.GetCommandType());
}
+ ctx.data_size = static_cast<u32>(raw_data_size);
header.data_size.Assign(static_cast<u32>(raw_data_size));
if (num_handles_to_copy || num_handles_to_move) {
header.enable_handle_descriptor.Assign(1);
diff --git a/src/core/hle/kernel/hle_ipc.cpp b/src/core/hle/kernel/hle_ipc.cpp
index edb3f8d98..ce3466df8 100644
--- a/src/core/hle/kernel/hle_ipc.cpp
+++ b/src/core/hle/kernel/hle_ipc.cpp
@@ -186,6 +186,18 @@ ResultCode HLERequestContext::WriteToOutgoingCommandBuffer(KThread& requesting_t
auto& owner_process = *requesting_thread.GetOwnerProcess();
auto& handle_table = owner_process.GetHandleTable();
+ // The data_size already includes the payload header, the padding and the domain header.
+ std::size_t size{};
+
+ if (IsTipc()) {
+ size = cmd_buf.size();
+ } else {
+ size = data_payload_offset + data_size - sizeof(IPC::DataPayloadHeader) / sizeof(u32) - 4;
+ if (Session()->IsDomain()) {
+ size -= sizeof(IPC::DomainMessageHeader) / sizeof(u32);
+ }
+ }
+
for (auto& object : copy_objects) {
Handle handle{};
if (object) {
@@ -218,7 +230,7 @@ ResultCode HLERequestContext::WriteToOutgoingCommandBuffer(KThread& requesting_t
// Copy the translated command buffer back into the thread's command buffer area.
memory.WriteBlock(owner_process, requesting_thread.GetTLSAddress(), cmd_buf.data(),
- cmd_buf.size() * sizeof(u32));
+ size * sizeof(u32));
return RESULT_SUCCESS;
}
diff --git a/src/core/hle/kernel/hle_ipc.h b/src/core/hle/kernel/hle_ipc.h
index 3e66e5542..4fba300dc 100644
--- a/src/core/hle/kernel/hle_ipc.h
+++ b/src/core/hle/kernel/hle_ipc.h
@@ -308,6 +308,7 @@ private:
u32 data_payload_offset{};
u32 handles_offset{};
u32 domain_offset{};
+ u32 data_size{};
u32_le command{};
std::vector<std::shared_ptr<SessionRequestHandler>> domain_request_handlers;