Merge pull request #2774 from yuriks/hle-handles
Add basic support for IPC translation for HLE services
This commit is contained in:
Yuri Kunde Schlesner
GitHub
commit
4325a7c82d
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@ -1 +1 @@
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Subproject commit 351972396392c97a659b9a02f34ce9269293d21f
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Subproject commit 3abc84abaf63a068cb59a9f9b5675c1947bc6fd9
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@ -44,6 +44,9 @@ inline u32* GetStaticBuffers(const int offset = 0) {
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namespace IPC {
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/// Size of the command buffer area, in 32-bit words.
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constexpr size_t COMMAND_BUFFER_LENGTH = 0x100 / sizeof(u32);
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// These errors are commonly returned by invalid IPC translations, so alias them here for
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// convenience.
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// TODO(yuriks): These will probably go away once translation is implemented inside the kernel.
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@ -4,19 +4,28 @@
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#pragma once
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#include <array>
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#include <tuple>
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#include <type_traits>
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#include <utility>
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#include "core/hle/ipc.h"
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#include "core/hle/kernel/handle_table.h"
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#include "core/hle/kernel/hle_ipc.h"
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#include "core/hle/kernel/kernel.h"
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namespace IPC {
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class RequestHelperBase {
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protected:
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Kernel::HLERequestContext* context = nullptr;
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u32* cmdbuf;
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ptrdiff_t index = 1;
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Header header;
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public:
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RequestHelperBase(Kernel::HLERequestContext& context, Header desired_header)
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: context(&context), cmdbuf(context.CommandBuffer()), header(desired_header) {}
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RequestHelperBase(u32* command_buffer, Header command_header)
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: cmdbuf(command_buffer), header(command_header) {}
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@ -51,12 +60,27 @@ public:
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class RequestBuilder : public RequestHelperBase {
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public:
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RequestBuilder(Kernel::HLERequestContext& context, Header command_header)
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: RequestHelperBase(context, command_header) {
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// From this point we will start overwriting the existing command buffer, so it's safe to
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// release all previous incoming Object pointers since they won't be usable anymore.
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context.ClearIncomingObjects();
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cmdbuf[0] = header.raw;
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}
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RequestBuilder(Kernel::HLERequestContext& context, u16 command_id, unsigned normal_params_size,
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unsigned translate_params_size)
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: RequestBuilder(
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context, Header{MakeHeader(command_id, normal_params_size, translate_params_size)}) {}
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RequestBuilder(u32* command_buffer, Header command_header)
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: RequestHelperBase(command_buffer, command_header) {
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cmdbuf[0] = header.raw;
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}
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explicit RequestBuilder(u32* command_buffer, u32 command_header)
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: RequestBuilder(command_buffer, Header{command_header}) {}
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RequestBuilder(u32* command_buffer, u16 command_id, unsigned normal_params_size,
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unsigned translate_params_size)
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: RequestBuilder(command_buffer,
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@ -88,6 +112,9 @@ public:
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template <typename... H>
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void PushMoveHandles(H... handles);
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template <typename... O>
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void PushObjects(Kernel::SharedPtr<O>... pointers);
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void PushCurrentPIDHandle();
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void PushStaticBuffer(VAddr buffer_vaddr, u32 size, u8 buffer_id);
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@ -153,6 +180,11 @@ inline void RequestBuilder::PushMoveHandles(H... handles) {
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Push(static_cast<Kernel::Handle>(handles)...);
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}
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template <typename... O>
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inline void RequestBuilder::PushObjects(Kernel::SharedPtr<O>... pointers) {
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PushMoveHandles(context->AddOutgoingHandle(std::move(pointers))...);
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}
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inline void RequestBuilder::PushCurrentPIDHandle() {
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Push(CallingPidDesc());
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Push(u32(0));
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@ -171,10 +203,21 @@ inline void RequestBuilder::PushMappedBuffer(VAddr buffer_vaddr, u32 size,
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class RequestParser : public RequestHelperBase {
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public:
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RequestParser(Kernel::HLERequestContext& context, Header desired_header)
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: RequestHelperBase(context, desired_header) {}
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RequestParser(Kernel::HLERequestContext& context, u16 command_id, unsigned normal_params_size,
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unsigned translate_params_size)
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: RequestParser(context,
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Header{MakeHeader(command_id, normal_params_size, translate_params_size)}) {
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}
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RequestParser(u32* command_buffer, Header command_header)
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: RequestHelperBase(command_buffer, command_header) {}
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explicit RequestParser(u32* command_buffer, u32 command_header)
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: RequestParser(command_buffer, Header{command_header}) {}
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RequestParser(u32* command_buffer, u16 command_id, unsigned normal_params_size,
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unsigned translate_params_size)
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: RequestParser(command_buffer,
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@ -186,7 +229,10 @@ public:
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ValidateHeader();
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Header builderHeader{
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MakeHeader(header.command_id, normal_params_size, translate_params_size)};
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return {cmdbuf, builderHeader};
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if (context != nullptr)
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return {*context, builderHeader};
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else
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return {cmdbuf, builderHeader};
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}
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template <typename T>
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@ -198,10 +244,52 @@ public:
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template <typename First, typename... Other>
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void Pop(First& first_value, Other&... other_values);
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/// Equivalent to calling `PopHandles<1>()[0]`.
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Kernel::Handle PopHandle();
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/**
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* Pops a descriptor containing `N` handles. The handles are returned as an array. The
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* descriptor must contain exactly `N` handles, it is not permitted to, for example, call
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* PopHandles<1>() twice to read a multi-handle descriptor with 2 handles, or to make a single
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* PopHandles<2>() call to read 2 single-handle descriptors.
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*/
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template <unsigned int N>
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std::array<Kernel::Handle, N> PopHandles();
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/// Convenience wrapper around PopHandles() which assigns the handles to the passed references.
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template <typename... H>
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void PopHandles(H&... handles);
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void PopHandles(H&... handles) {
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std::tie(handles...) = PopHandles<sizeof...(H)>();
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}
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/// Equivalent to calling `PopGenericObjects<1>()[0]`.
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Kernel::SharedPtr<Kernel::Object> PopGenericObject();
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/// Equivalent to calling `std::get<0>(PopObjects<T>())`.
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template <typename T>
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Kernel::SharedPtr<T> PopObject();
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/**
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* Pop a descriptor containing `N` handles and resolves them to Kernel::Object pointers. If a
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* handle is invalid, null is returned for that object instead. The same caveats from
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* PopHandles() apply regarding `N` matching the number of handles in the descriptor.
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*/
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template <unsigned int N>
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std::array<Kernel::SharedPtr<Kernel::Object>, N> PopGenericObjects();
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/**
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* Resolves handles to Kernel::Objects as in PopGenericsObjects(), but then also casts them to
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* the passed `T` types, while verifying that the cast is valid. If the type of an object does
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* not match, null is returned instead.
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*/
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template <typename... T>
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std::tuple<Kernel::SharedPtr<T>...> PopObjects();
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/// Convenience wrapper around PopObjects() which assigns the handles to the passed references.
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template <typename... T>
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void PopObjects(Kernel::SharedPtr<T>&... pointers) {
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std::tie(pointers...) = PopObjects<T...>();
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}
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/**
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* @brief Pops the static buffer vaddr
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@ -313,15 +401,54 @@ inline Kernel::Handle RequestParser::PopHandle() {
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return Pop<Kernel::Handle>();
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}
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template <typename... H>
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void RequestParser::PopHandles(H&... handles) {
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const u32 handle_descriptor = Pop<u32>();
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const int handles_number = sizeof...(H);
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DEBUG_ASSERT_MSG(IsHandleDescriptor(handle_descriptor),
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"Tried to pop handle(s) but the descriptor is not a handle descriptor");
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DEBUG_ASSERT_MSG(handles_number == HandleNumberFromDesc(handle_descriptor),
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"Number of handles doesn't match the descriptor");
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Pop(static_cast<Kernel::Handle&>(handles)...);
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template <unsigned int N>
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std::array<Kernel::Handle, N> RequestParser::PopHandles() {
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u32 handle_descriptor = Pop<u32>();
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ASSERT_MSG(IsHandleDescriptor(handle_descriptor),
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"Tried to pop handle(s) but the descriptor is not a handle descriptor");
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ASSERT_MSG(N == HandleNumberFromDesc(handle_descriptor),
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"Number of handles doesn't match the descriptor");
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std::array<Kernel::Handle, N> handles{};
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for (Kernel::Handle& handle : handles) {
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handle = Pop<Kernel::Handle>();
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}
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return handles;
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}
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inline Kernel::SharedPtr<Kernel::Object> RequestParser::PopGenericObject() {
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Kernel::Handle handle = PopHandle();
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return context->GetIncomingHandle(handle);
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}
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template <typename T>
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Kernel::SharedPtr<T> RequestParser::PopObject() {
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return Kernel::DynamicObjectCast<T>(PopGenericObject());
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}
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template <unsigned int N>
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inline std::array<Kernel::SharedPtr<Kernel::Object>, N> RequestParser::PopGenericObjects() {
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std::array<Kernel::Handle, N> handles = PopHandles<N>();
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std::array<Kernel::SharedPtr<Kernel::Object>, N> pointers;
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for (int i = 0; i < N; ++i) {
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pointers[i] = context->GetIncomingHandle(handles[i]);
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}
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return pointers;
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}
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namespace detail {
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template <typename... T, size_t... I>
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std::tuple<Kernel::SharedPtr<T>...> PopObjectsHelper(
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std::array<Kernel::SharedPtr<Kernel::Object>, sizeof...(T)>&& pointers,
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std::index_sequence<I...>) {
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return std::make_tuple(Kernel::DynamicObjectCast<T>(std::move(pointers[I]))...);
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}
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} // namespace detail
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template <typename... T>
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inline std::tuple<Kernel::SharedPtr<T>...> RequestParser::PopObjects() {
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return detail::PopObjectsHelper<T...>(PopGenericObjects<sizeof...(T)>(),
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std::index_sequence_for<T...>{});
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}
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inline VAddr RequestParser::PopStaticBuffer(size_t* data_size, bool useStaticBuffersToGetVaddr) {
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@ -5,8 +5,10 @@
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#include <boost/range/algorithm_ext/erase.hpp>
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#include "common/assert.h"
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#include "common/common_types.h"
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#include "core/hle/kernel/handle_table.h"
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#include "core/hle/kernel/hle_ipc.h"
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#include "core/hle/kernel/kernel.h"
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#include "core/hle/kernel/process.h"
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#include "core/hle/kernel/server_session.h"
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namespace Kernel {
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@ -23,4 +25,101 @@ void SessionRequestHandler::ClientDisconnected(SharedPtr<ServerSession> server_s
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HLERequestContext::~HLERequestContext() = default;
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SharedPtr<Object> HLERequestContext::GetIncomingHandle(u32 id_from_cmdbuf) const {
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ASSERT(id_from_cmdbuf < request_handles.size());
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return request_handles[id_from_cmdbuf];
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}
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u32 HLERequestContext::AddOutgoingHandle(SharedPtr<Object> object) {
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request_handles.push_back(std::move(object));
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return request_handles.size() - 1;
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}
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void HLERequestContext::ClearIncomingObjects() {
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request_handles.clear();
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}
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ResultCode HLERequestContext::PopulateFromIncomingCommandBuffer(const u32_le* src_cmdbuf,
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Process& src_process,
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HandleTable& src_table) {
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IPC::Header header{src_cmdbuf[0]};
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size_t untranslated_size = 1u + header.normal_params_size;
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size_t command_size = untranslated_size + header.translate_params_size;
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ASSERT(command_size <= IPC::COMMAND_BUFFER_LENGTH); // TODO(yuriks): Return error
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std::copy_n(src_cmdbuf, untranslated_size, cmd_buf.begin());
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size_t i = untranslated_size;
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while (i < command_size) {
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u32 descriptor = cmd_buf[i] = src_cmdbuf[i];
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i += 1;
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switch (IPC::GetDescriptorType(descriptor)) {
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case IPC::DescriptorType::CopyHandle:
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case IPC::DescriptorType::MoveHandle: {
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u32 num_handles = IPC::HandleNumberFromDesc(descriptor);
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ASSERT(i + num_handles <= command_size); // TODO(yuriks): Return error
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for (u32 j = 0; j < num_handles; ++j) {
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Handle handle = src_cmdbuf[i];
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SharedPtr<Object> object = src_table.GetGeneric(handle);
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ASSERT(object != nullptr); // TODO(yuriks): Return error
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if (descriptor == IPC::DescriptorType::MoveHandle) {
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src_table.Close(handle);
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}
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cmd_buf[i++] = AddOutgoingHandle(std::move(object));
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}
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break;
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}
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case IPC::DescriptorType::CallingPid: {
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cmd_buf[i++] = src_process.process_id;
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break;
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}
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default:
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UNIMPLEMENTED_MSG("Unsupported handle translation: 0x%08X", descriptor);
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}
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}
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return RESULT_SUCCESS;
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}
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ResultCode HLERequestContext::WriteToOutgoingCommandBuffer(u32_le* dst_cmdbuf, Process& dst_process,
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HandleTable& dst_table) const {
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IPC::Header header{cmd_buf[0]};
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size_t untranslated_size = 1u + header.normal_params_size;
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size_t command_size = untranslated_size + header.translate_params_size;
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ASSERT(command_size <= IPC::COMMAND_BUFFER_LENGTH);
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std::copy_n(cmd_buf.begin(), untranslated_size, dst_cmdbuf);
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size_t i = untranslated_size;
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while (i < command_size) {
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u32 descriptor = dst_cmdbuf[i] = cmd_buf[i];
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i += 1;
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switch (IPC::GetDescriptorType(descriptor)) {
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case IPC::DescriptorType::CopyHandle:
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case IPC::DescriptorType::MoveHandle: {
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// HLE services don't use handles, so we treat both CopyHandle and MoveHandle equally
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u32 num_handles = IPC::HandleNumberFromDesc(descriptor);
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ASSERT(i + num_handles <= command_size);
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for (u32 j = 0; j < num_handles; ++j) {
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SharedPtr<Object> object = GetIncomingHandle(cmd_buf[i]);
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// TODO(yuriks): Figure out the proper error handling for if this fails
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Handle handle = dst_table.Create(object).Unwrap();
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dst_cmdbuf[i++] = handle;
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}
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break;
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}
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default:
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UNIMPLEMENTED_MSG("Unsupported handle translation: 0x%08X", descriptor);
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}
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}
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return RESULT_SUCCESS;
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}
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} // namespace Kernel
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@ -4,8 +4,13 @@
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#pragma once
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#include <array>
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#include <memory>
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#include <vector>
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#include <boost/container/small_vector.hpp>
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#include "common/common_types.h"
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#include "common/swap.h"
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#include "core/hle/ipc.h"
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#include "core/hle/kernel/kernel.h"
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#include "core/hle/kernel/server_session.h"
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@ -15,6 +20,9 @@ class ServiceFrameworkBase;
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namespace Kernel {
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class HandleTable;
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class Process;
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/**
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* Interface implemented by HLE Session handlers.
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* This can be provided to a ServerSession in order to hook into several relevant events
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@ -59,14 +67,28 @@ protected:
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* Class containing information about an in-flight IPC request being handled by an HLE service
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* implementation. Services should avoid using old global APIs (e.g. Kernel::GetCommandBuffer()) and
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* when possible use the APIs in this class to service the request.
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*
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* HLE handle protocol
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* ===================
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*
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* To avoid needing HLE services to keep a separate handle table, or having to directly modify the
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* requester's table, a tweaked protocol is used to receive and send handles in requests. The kernel
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* will decode the incoming handles into object pointers and insert a id in the buffer where the
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* handle would normally be. The service then calls GetIncomingHandle() with that id to get the
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* pointer to the object. Similarly, instead of inserting a handle into the command buffer, the
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* service calls AddOutgoingHandle() and stores the returned id where the handle would normally go.
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*
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* The end result is similar to just giving services their own real handle tables, but since these
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* ids are local to a specific context, it avoids requiring services to manage handles for objects
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* across multiple calls and ensuring that unneeded handles are cleaned up.
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*/
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class HLERequestContext {
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public:
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~HLERequestContext();
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/// Returns a pointer to the IPC command buffer for this request.
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u32* CommandBuffer() const {
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return cmd_buf;
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u32* CommandBuffer() {
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return cmd_buf.data();
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}
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/**
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@ -77,11 +99,37 @@ public:
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return session;
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}
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/**
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* Resolves a object id from the request command buffer into a pointer to an object. See the
|
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* "HLE handle protocol" section in the class documentation for more details.
|
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*/
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SharedPtr<Object> GetIncomingHandle(u32 id_from_cmdbuf) const;
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/**
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* Adds an outgoing object to the response, returning the id which should be used to reference
|
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* it. See the "HLE handle protocol" section in the class documentation for more details.
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*/
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u32 AddOutgoingHandle(SharedPtr<Object> object);
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/**
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* Discards all Objects from the context, invalidating all ids. This may be called after reading
|
||||
* out all incoming objects, so that the buffer memory can be re-used for outgoing handles, but
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||||
* this is not required.
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*/
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void ClearIncomingObjects();
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private:
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friend class Service::ServiceFrameworkBase;
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u32* cmd_buf = nullptr;
|
||||
ResultCode PopulateFromIncomingCommandBuffer(const u32_le* src_cmdbuf, Process& src_process,
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HandleTable& src_table);
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ResultCode WriteToOutgoingCommandBuffer(u32_le* dst_cmdbuf, Process& dst_process,
|
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HandleTable& dst_table) const;
|
||||
|
||||
std::array<u32, IPC::COMMAND_BUFFER_LENGTH> cmd_buf;
|
||||
SharedPtr<ServerSession> session;
|
||||
// TODO(yuriks): Check common usage of this and optimize size accordingly
|
||||
boost::container::small_vector<SharedPtr<Object>, 8> request_handles;
|
||||
};
|
||||
|
||||
} // namespace Kernel
|
||||
|
|
|
|||
|
|
@ -2,10 +2,14 @@
|
|||
// Licensed under GPLv2 or any later version
|
||||
// Refer to the license.txt file included.
|
||||
|
||||
#include <algorithm>
|
||||
#include <fmt/format.h>
|
||||
#include "common/assert.h"
|
||||
#include "common/logging/log.h"
|
||||
#include "common/string_util.h"
|
||||
#include "core/hle/ipc.h"
|
||||
#include "core/hle/kernel/client_port.h"
|
||||
#include "core/hle/kernel/process.h"
|
||||
#include "core/hle/kernel/server_port.h"
|
||||
#include "core/hle/kernel/server_session.h"
|
||||
#include "core/hle/service/ac/ac.h"
|
||||
|
|
@ -160,12 +164,6 @@ void ServiceFrameworkBase::ReportUnimplementedFunction(u32* cmd_buf, const Funct
|
|||
void ServiceFrameworkBase::HandleSyncRequest(SharedPtr<ServerSession> server_session) {
|
||||
u32* cmd_buf = Kernel::GetCommandBuffer();
|
||||
|
||||
// TODO(yuriks): The kernel should be the one handling this as part of translation after
|
||||
// everything else is migrated
|
||||
Kernel::HLERequestContext context;
|
||||
context.cmd_buf = cmd_buf;
|
||||
context.session = std::move(server_session);
|
||||
|
||||
u32 header_code = cmd_buf[0];
|
||||
auto itr = handlers.find(header_code);
|
||||
const FunctionInfoBase* info = itr == handlers.end() ? nullptr : &itr->second;
|
||||
|
|
@ -173,9 +171,18 @@ void ServiceFrameworkBase::HandleSyncRequest(SharedPtr<ServerSession> server_ses
|
|||
return ReportUnimplementedFunction(cmd_buf, info);
|
||||
}
|
||||
|
||||
// TODO(yuriks): The kernel should be the one handling this as part of translation after
|
||||
// everything else is migrated
|
||||
Kernel::HLERequestContext context;
|
||||
context.session = std::move(server_session);
|
||||
context.PopulateFromIncomingCommandBuffer(cmd_buf, *Kernel::g_current_process,
|
||||
Kernel::g_handle_table);
|
||||
|
||||
LOG_TRACE(Service, "%s",
|
||||
MakeFunctionString(info->name, GetServiceName().c_str(), cmd_buf).c_str());
|
||||
handler_invoker(this, info->handler_callback, context);
|
||||
context.WriteToOutgoingCommandBuffer(cmd_buf, *Kernel::g_current_process,
|
||||
Kernel::g_handle_table);
|
||||
}
|
||||
|
||||
////////////////////////////////////////////////////////////////////////////////////////////////////
|
||||
|
|
|
|||
|
|
@ -7,9 +7,11 @@
|
|||
#include "common/common_types.h"
|
||||
#include "common/logging/log.h"
|
||||
#include "core/hle/ipc.h"
|
||||
#include "core/hle/ipc_helpers.h"
|
||||
#include "core/hle/kernel/client_port.h"
|
||||
#include "core/hle/kernel/client_session.h"
|
||||
#include "core/hle/kernel/handle_table.h"
|
||||
#include "core/hle/kernel/errors.h"
|
||||
#include "core/hle/kernel/hle_ipc.h"
|
||||
#include "core/hle/kernel/semaphore.h"
|
||||
#include "core/hle/kernel/server_session.h"
|
||||
#include "core/hle/service/sm/sm.h"
|
||||
|
|
@ -30,15 +32,18 @@ constexpr int MAX_PENDING_NOTIFICATIONS = 16;
|
|||
* 1: ResultCode
|
||||
*/
|
||||
void SRV::RegisterClient(Kernel::HLERequestContext& ctx) {
|
||||
u32* cmd_buff = ctx.CommandBuffer();
|
||||
IPC::RequestParser rp(ctx, 0x1, 0, 2);
|
||||
|
||||
if (cmd_buff[1] != IPC::CallingPidDesc()) {
|
||||
cmd_buff[0] = IPC::MakeHeader(0x0, 0x1, 0); // 0x40
|
||||
cmd_buff[1] = IPC::ERR_INVALID_BUFFER_DESCRIPTOR.raw;
|
||||
u32 pid_descriptor = rp.Pop<u32>();
|
||||
if (pid_descriptor != IPC::CallingPidDesc()) {
|
||||
IPC::RequestBuilder rb = rp.MakeBuilder(1, 0);
|
||||
rb.Push(IPC::ERR_INVALID_BUFFER_DESCRIPTOR);
|
||||
return;
|
||||
}
|
||||
cmd_buff[0] = IPC::MakeHeader(0x1, 0x1, 0); // 0x10040
|
||||
cmd_buff[1] = RESULT_SUCCESS.raw; // No error
|
||||
u32 caller_pid = rp.Pop<u32>();
|
||||
|
||||
IPC::RequestBuilder rb = rp.MakeBuilder(1, 0);
|
||||
rb.Push(RESULT_SUCCESS);
|
||||
LOG_WARNING(Service_SRV, "(STUBBED) called");
|
||||
}
|
||||
|
||||
|
|
@ -53,15 +58,14 @@ void SRV::RegisterClient(Kernel::HLERequestContext& ctx) {
|
|||
* 3: Handle to semaphore signaled on process notification
|
||||
*/
|
||||
void SRV::EnableNotification(Kernel::HLERequestContext& ctx) {
|
||||
u32* cmd_buff = ctx.CommandBuffer();
|
||||
IPC::RequestParser rp(ctx, 0x2, 0, 0);
|
||||
|
||||
notification_semaphore =
|
||||
Kernel::Semaphore::Create(0, MAX_PENDING_NOTIFICATIONS, "SRV:Notification").Unwrap();
|
||||
|
||||
cmd_buff[0] = IPC::MakeHeader(0x2, 0x1, 0x2); // 0x20042
|
||||
cmd_buff[1] = RESULT_SUCCESS.raw; // No error
|
||||
cmd_buff[2] = IPC::CopyHandleDesc(1);
|
||||
cmd_buff[3] = Kernel::g_handle_table.Create(notification_semaphore).MoveFrom();
|
||||
IPC::RequestBuilder rb = rp.MakeBuilder(1, 2);
|
||||
rb.Push(RESULT_SUCCESS);
|
||||
rb.PushObjects(notification_semaphore);
|
||||
LOG_WARNING(Service_SRV, "(STUBBED) called");
|
||||
}
|
||||
|
||||
|
|
@ -77,43 +81,49 @@ void SRV::EnableNotification(Kernel::HLERequestContext& ctx) {
|
|||
* 3: Service handle
|
||||
*/
|
||||
void SRV::GetServiceHandle(Kernel::HLERequestContext& ctx) {
|
||||
ResultCode res = RESULT_SUCCESS;
|
||||
u32* cmd_buff = ctx.CommandBuffer();
|
||||
IPC::RequestParser rp(ctx, 0x5, 4, 0);
|
||||
auto name_buf = rp.PopRaw<std::array<char, 8>>();
|
||||
size_t name_len = rp.Pop<u32>();
|
||||
u32 flags = rp.Pop<u32>();
|
||||
|
||||
bool return_port_on_failure = (flags & 1) == 0;
|
||||
|
||||
size_t name_len = cmd_buff[3];
|
||||
if (name_len > Service::kMaxPortSize) {
|
||||
cmd_buff[1] = ERR_INVALID_NAME_SIZE.raw;
|
||||
LOG_ERROR(Service_SRV, "called name_len=0x%X, failed with code=0x%08X", name_len,
|
||||
cmd_buff[1]);
|
||||
IPC::RequestBuilder rb = rp.MakeBuilder(1, 0);
|
||||
rb.Push(ERR_INVALID_NAME_SIZE);
|
||||
LOG_ERROR(Service_SRV, "called name_len=0x%X -> ERR_INVALID_NAME_SIZE", name_len);
|
||||
return;
|
||||
}
|
||||
std::string name(reinterpret_cast<const char*>(&cmd_buff[1]), name_len);
|
||||
bool return_port_on_failure = (cmd_buff[4] & 1) == 0;
|
||||
std::string name(name_buf.data(), name_len);
|
||||
|
||||
// TODO(yuriks): Permission checks go here
|
||||
|
||||
auto client_port = service_manager->GetServicePort(name);
|
||||
if (client_port.Failed()) {
|
||||
cmd_buff[1] = client_port.Code().raw;
|
||||
LOG_ERROR(Service_SRV, "called service=%s, failed with code=0x%08X", name.c_str(),
|
||||
cmd_buff[1]);
|
||||
IPC::RequestBuilder rb = rp.MakeBuilder(1, 0);
|
||||
rb.Push(client_port.Code());
|
||||
LOG_ERROR(Service_SRV, "called service=%s -> error 0x%08X", name.c_str(),
|
||||
client_port.Code().raw);
|
||||
return;
|
||||
}
|
||||
|
||||
auto session = client_port.Unwrap()->Connect();
|
||||
cmd_buff[1] = session.Code().raw;
|
||||
if (session.Succeeded()) {
|
||||
cmd_buff[3] = Kernel::g_handle_table.Create(session.MoveFrom()).MoveFrom();
|
||||
LOG_DEBUG(Service_SRV, "called service=%s, session handle=0x%08X", name.c_str(),
|
||||
cmd_buff[3]);
|
||||
LOG_DEBUG(Service_SRV, "called service=%s -> session=%u", name.c_str(),
|
||||
(*session)->GetObjectId());
|
||||
IPC::RequestBuilder rb = rp.MakeBuilder(1, 2);
|
||||
rb.Push(session.Code());
|
||||
rb.PushObjects(session.MoveFrom());
|
||||
} else if (session.Code() == Kernel::ERR_MAX_CONNECTIONS_REACHED && return_port_on_failure) {
|
||||
cmd_buff[1] = ERR_MAX_CONNECTIONS_REACHED.raw;
|
||||
cmd_buff[3] = Kernel::g_handle_table.Create(client_port.MoveFrom()).MoveFrom();
|
||||
LOG_WARNING(Service_SRV, "called service=%s, *port* handle=0x%08X", name.c_str(),
|
||||
cmd_buff[3]);
|
||||
LOG_WARNING(Service_SRV, "called service=%s -> ERR_MAX_CONNECTIONS_REACHED, *port*=%u",
|
||||
name.c_str(), (*client_port)->GetObjectId());
|
||||
IPC::RequestBuilder rb = rp.MakeBuilder(1, 2);
|
||||
rb.Push(ERR_MAX_CONNECTIONS_REACHED);
|
||||
rb.PushObjects(client_port.MoveFrom());
|
||||
} else {
|
||||
LOG_ERROR(Service_SRV, "called service=%s, failed with code=0x%08X", name.c_str(),
|
||||
cmd_buff[1]);
|
||||
LOG_ERROR(Service_SRV, "called service=%s -> error 0x%08X", name.c_str(), session.Code());
|
||||
IPC::RequestBuilder rb = rp.MakeBuilder(1, 0);
|
||||
rb.Push(session.Code());
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -127,12 +137,11 @@ void SRV::GetServiceHandle(Kernel::HLERequestContext& ctx) {
|
|||
* 1: ResultCode
|
||||
*/
|
||||
void SRV::Subscribe(Kernel::HLERequestContext& ctx) {
|
||||
u32* cmd_buff = ctx.CommandBuffer();
|
||||
IPC::RequestParser rp(ctx, 0x9, 1, 0);
|
||||
u32 notification_id = rp.Pop<u32>();
|
||||
|
||||
u32 notification_id = cmd_buff[1];
|
||||
|
||||
cmd_buff[0] = IPC::MakeHeader(0x9, 0x1, 0); // 0x90040
|
||||
cmd_buff[1] = RESULT_SUCCESS.raw; // No error
|
||||
IPC::RequestBuilder rb = rp.MakeBuilder(1, 0);
|
||||
rb.Push(RESULT_SUCCESS);
|
||||
LOG_WARNING(Service_SRV, "(STUBBED) called, notification_id=0x%X", notification_id);
|
||||
}
|
||||
|
||||
|
|
@ -146,12 +155,11 @@ void SRV::Subscribe(Kernel::HLERequestContext& ctx) {
|
|||
* 1: ResultCode
|
||||
*/
|
||||
void SRV::Unsubscribe(Kernel::HLERequestContext& ctx) {
|
||||
u32* cmd_buff = ctx.CommandBuffer();
|
||||
IPC::RequestParser rp(ctx, 0xA, 1, 0);
|
||||
u32 notification_id = rp.Pop<u32>();
|
||||
|
||||
u32 notification_id = cmd_buff[1];
|
||||
|
||||
cmd_buff[0] = IPC::MakeHeader(0xA, 0x1, 0); // 0xA0040
|
||||
cmd_buff[1] = RESULT_SUCCESS.raw; // No error
|
||||
IPC::RequestBuilder rb = rp.MakeBuilder(1, 0);
|
||||
rb.Push(RESULT_SUCCESS);
|
||||
LOG_WARNING(Service_SRV, "(STUBBED) called, notification_id=0x%X", notification_id);
|
||||
}
|
||||
|
||||
|
|
@ -166,13 +174,12 @@ void SRV::Unsubscribe(Kernel::HLERequestContext& ctx) {
|
|||
* 1: ResultCode
|
||||
*/
|
||||
void SRV::PublishToSubscriber(Kernel::HLERequestContext& ctx) {
|
||||
u32* cmd_buff = ctx.CommandBuffer();
|
||||
IPC::RequestParser rp(ctx, 0xC, 2, 0);
|
||||
u32 notification_id = rp.Pop<u32>();
|
||||
u8 flags = rp.Pop<u8>();
|
||||
|
||||
u32 notification_id = cmd_buff[1];
|
||||
u8 flags = cmd_buff[2] & 0xFF;
|
||||
|
||||
cmd_buff[0] = IPC::MakeHeader(0xC, 0x1, 0); // 0xC0040
|
||||
cmd_buff[1] = RESULT_SUCCESS.raw; // No error
|
||||
IPC::RequestBuilder rb = rp.MakeBuilder(1, 0);
|
||||
rb.Push(RESULT_SUCCESS);
|
||||
LOG_WARNING(Service_SRV, "(STUBBED) called, notification_id=0x%X, flags=%u", notification_id,
|
||||
flags);
|
||||
}
|
||||
|
|
|
|||
Reference in New Issue