From 8e703e08dfcf735a08df2ceff6a05221b7cc981f Mon Sep 17 00:00:00 2001 From: comex Date: Mon, 19 Jun 2023 18:17:43 -0700 Subject: Implement SSL service This implements some missing network APIs including a large chunk of the SSL service, enough for Mario Maker (with an appropriate mod applied) to connect to the fan server [Open Course World](https://opencourse.world/). Connecting to first-party servers is out of scope of this PR and is a minefield I'd rather not step into. ## TLS TLS is implemented with multiple backends depending on the system's 'native' TLS library. Currently there are two backends: Schannel for Windows, and OpenSSL for Linux. (In reality Linux is a bit of a free-for-all where there's no one 'native' library, but OpenSSL is the closest it gets.) On macOS the 'native' library is SecureTransport but that isn't implemented in this PR. (Instead, all non-Windows OSes will use OpenSSL unless disabled with `-DENABLE_OPENSSL=OFF`.) Why have multiple backends instead of just using a single library, especially given that Yuzu already embeds mbedtls for cryptographic algorithms? Well, I tried implementing this on mbedtls first, but the problem is TLS policies - mainly trusted certificate policies, and to a lesser extent trusted algorithms, SSL versions, etc. ...In practice, the chance that someone is going to conduct a man-in-the-middle attack on a third-party game server is pretty low, but I'm a security nerd so I like to do the right security things. My base assumption is that we want to use the host system's TLS policies. An alternative would be to more closely emulate the Switch's TLS implementation (which is based on NSS). But for one thing, I don't feel like reverse engineering it. And I'd argue that for third-party servers such as Open Course World, it's theoretically preferable to use the system's policies rather than the Switch's, for two reasons 1. Someday the Switch will stop being updated, and the trusted cert list, algorithms, etc. will start to go stale, but users will still want to connect to third-party servers, and there's no reason they shouldn't have up-to-date security when doing so. At that point, homebrew users on actual hardware may patch the TLS implementation, but for emulators it's simpler to just use the host's stack. 2. Also, it's good to respect any custom certificate policies the user may have added systemwide. For example, they may have added custom trusted CAs in order to use TLS debugging tools or pass through corporate MitM middleboxes. Or they may have removed some CAs that are normally trusted out of paranoia. Note that this policy wouldn't work as-is for connecting to first-party servers, because some of them serve certificates based on Nintendo's own CA rather than a publicly trusted one. However, this could probably be solved easily by using appropriate APIs to adding Nintendo's CA as an alternate trusted cert for Yuzu's connections. That is not implemented in this PR because, again, first-party servers are out of scope. (If anything I'd rather have an option to _block_ connections to Nintendo servers, but that's not implemented here.) To use the host's TLS policies, there are three theoretical options: a) Import the host's trusted certificate list into a cross-platform TLS library (presumably mbedtls). b) Use the native TLS library to verify certificates but use a cross-platform TLS library for everything else. c) Use the native TLS library for everything. Two problems with option a). First, importing the trusted certificate list at minimum requires a bunch of platform-specific code, which mbedtls does not have built in. Interestingly, OpenSSL recently gained the ability to import the Windows certificate trust store... but that leads to the second problem, which is that a list of trusted certificates is [not expressive enough](https://bugs.archlinux.org/task/41909) to express a modern certificate trust policy. For example, Windows has the concept of [explicitly distrusted certificates](https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2012-r2-and-2012/dn265983(v=ws.11)), and macOS requires Certificate Transparency validation for some certificates with complex rules for when it's required. Option b) (using native library just to verify certs) is probably feasible, but it would miss aspects of TLS policy other than trusted certs (like allowed algorithms), and in any case it might well require writing more code, not less, compared to using the native library for everything. So I ended up at option c), using the native library for everything. What I'd *really* prefer would be to use a third-party library that does option c) for me. Rust has a good library for this, [native-tls](https://docs.rs/native-tls/latest/native_tls/). I did search, but I couldn't find a good option in the C or C++ ecosystem, at least not any that wasn't part of some much larger framework. I was surprised - isn't this a pretty common use case? Well, many applications only need TLS for HTTPS, and they can use libcurl, which has a TLS abstraction layer internally but doesn't expose it. Other applications only support a single TLS library, or use one of the aforementioned larger frameworks, or are platform-specific to begin with, or of course are written in a non-C/C++ language, most of which have some canonical choice for TLS. But there are also many applications that have a set of TLS backends just like this; it's just that nobody has gone ahead and abstracted the pattern into a library, at least not a widespread one. Amusingly, there is one TLS abstraction layer that Yuzu already bundles: the one in ffmpeg. But it is missing some features that would be needed to use it here (like reusing an existing socket rather than managing the socket itself). Though, that does mean that the wiki's build instructions for Linux (and macOS for some reason?) already recommend installing OpenSSL, so no need to update those. ## Other APIs implemented - Sockets: - GetSockOpt(`SO_ERROR`) - SetSockOpt(`SO_NOSIGPIPE`) (stub, I have no idea what this does on Switch) - `DuplicateSocket` (because the SSL sysmodule calls it internally) - More `PollEvents` values - NSD: - `Resolve` and `ResolveEx` (stub, good enough for Open Course World and probably most third-party servers, but not first-party) - SFDNSRES: - `GetHostByNameRequest` and `GetHostByNameRequestWithOptions` - `ResolverSetOptionRequest` (stub) ## Fixes - Parts of the socket code were previously allocating a `sockaddr` object on the stack when calling functions that take a `sockaddr*` (e.g. `accept`). This might seem like the right thing to do to avoid illegal aliasing, but in fact `sockaddr` is not guaranteed to be large enough to hold any particular type of address, only the header. This worked in practice because in practice `sockaddr` is the same size as `sockaddr_in`, but it's not how the API is meant to be used. I changed this to allocate an `sockaddr_in` on the stack and `reinterpret_cast` it. I could try to do something cleverer with `aligned_storage`, but casting is the idiomatic way to use these particular APIs, so it's really the system's responsibility to avoid any aliasing issues. - I rewrote most of the `GetAddrInfoRequest[WithOptions]` implementation. The old implementation invoked the host's getaddrinfo directly from sfdnsres.cpp, and directly passed through the host's socket type, protocol, etc. values rather than looking up the corresponding constants on the Switch. To be fair, these constants don't tend to actually vary across systems, but still... I added a wrapper for `getaddrinfo` in `internal_network/network.cpp` similar to the ones for other socket APIs, and changed the `GetAddrInfoRequest` implementation to use it. While I was at it, I rewrote the serialization to use the same approach I used to implement `GetHostByNameRequest`, because it reduces the number of size calculations. While doing so I removed `AF_INET6` support because the Switch doesn't support IPv6; it might be nice to support IPv6 anyway, but that would have to apply to all of the socket APIs. I also corrected the IPC wrappers for `GetAddrInfoRequest` and `GetAddrInfoRequestWithOptions` based on reverse engineering and hardware testing. Every call to `GetAddrInfoRequestWithOptions` returns *four* different error codes (IPC status, getaddrinfo error code, netdb error code, and errno), and `GetAddrInfoRequest` returns three of those but in a different order, and it doesn't really matter but the existing implementation was a bit off, as I discovered while testing `GetHostByNameRequest`. - The new serialization code is based on two simple helper functions: ```cpp template static void Append(std::vector& vec, T t); void AppendNulTerminated(std::vector& vec, std::string_view str); ``` I was thinking there must be existing functions somewhere that assist with serialization/deserialization of binary data, but all I could find was the helper methods in `IOFile` and `HLERequestContext`, not anything that could be used with a generic byte buffer. If I'm not missing something, then maybe I should move the above functions to a new header in `common`... right now they're just sitting in `sfdnsres.cpp` where they're used. - Not a fix, but `SocketBase::Recv`/`Send` is changed to use `std::span` rather than `std::vector&` to avoid needing to copy the data to/from a vector when those methods are called from the TLS implementation. --- src/common/socket_types.h | 16 +- src/core/CMakeLists.txt | 14 + src/core/hle/service/sockets/bsd.cpp | 107 ++++- src/core/hle/service/sockets/bsd.h | 13 +- src/core/hle/service/sockets/nsd.cpp | 58 ++- src/core/hle/service/sockets/nsd.h | 4 + src/core/hle/service/sockets/sfdnsres.cpp | 345 ++++++++------ src/core/hle/service/sockets/sfdnsres.h | 3 + src/core/hle/service/sockets/sockets.h | 33 +- src/core/hle/service/sockets/sockets_translate.cpp | 114 ++++- src/core/hle/service/sockets/sockets_translate.h | 17 +- src/core/hle/service/ssl/ssl.cpp | 349 +++++++++++++- src/core/hle/service/ssl/ssl_backend.h | 44 ++ src/core/hle/service/ssl/ssl_backend_none.cpp | 15 + src/core/hle/service/ssl/ssl_backend_openssl.cpp | 342 +++++++++++++ src/core/hle/service/ssl/ssl_backend_schannel.cpp | 529 +++++++++++++++++++++ src/core/internal_network/network.cpp | 274 ++++++++--- src/core/internal_network/network.h | 34 ++ src/core/internal_network/socket_proxy.cpp | 22 +- src/core/internal_network/socket_proxy.h | 8 +- src/core/internal_network/sockets.h | 16 +- 21 files changed, 2080 insertions(+), 277 deletions(-) create mode 100644 src/core/hle/service/ssl/ssl_backend.h create mode 100644 src/core/hle/service/ssl/ssl_backend_none.cpp create mode 100644 src/core/hle/service/ssl/ssl_backend_openssl.cpp create mode 100644 src/core/hle/service/ssl/ssl_backend_schannel.cpp (limited to 'src') diff --git a/src/common/socket_types.h b/src/common/socket_types.h index 0a801a443..18ad6ac95 100644 --- a/src/common/socket_types.h +++ b/src/common/socket_types.h @@ -5,15 +5,19 @@ #include "common/common_types.h" +#include + namespace Network { /// Address families enum class Domain : u8 { - INET, ///< Address family for IPv4 + Unspecified, ///< Can be 0 in getaddrinfo hints + INET, ///< Address family for IPv4 }; /// Socket types enum class Type { + Unspecified, ///< Can be 0 in getaddrinfo hints STREAM, DGRAM, RAW, @@ -22,6 +26,7 @@ enum class Type { /// Protocol values for sockets enum class Protocol : u8 { + Unspecified, ICMP, TCP, UDP, @@ -48,4 +53,13 @@ constexpr u32 FLAG_MSG_PEEK = 0x2; constexpr u32 FLAG_MSG_DONTWAIT = 0x80; constexpr u32 FLAG_O_NONBLOCK = 0x800; +/// Cross-platform addrinfo structure +struct AddrInfo { + Domain family; + Type socket_type; + Protocol protocol; + SockAddrIn addr; + std::optional canon_name; +}; + } // namespace Network diff --git a/src/core/CMakeLists.txt b/src/core/CMakeLists.txt index 227c431bc..d95d2fe01 100644 --- a/src/core/CMakeLists.txt +++ b/src/core/CMakeLists.txt @@ -723,6 +723,7 @@ add_library(core STATIC hle/service/spl/spl_types.h hle/service/ssl/ssl.cpp hle/service/ssl/ssl.h + hle/service/ssl/ssl_backend.h hle/service/time/clock_types.h hle/service/time/ephemeral_network_system_clock_context_writer.h hle/service/time/ephemeral_network_system_clock_core.h @@ -864,6 +865,19 @@ if (ARCHITECTURE_x86_64 OR ARCHITECTURE_arm64) target_link_libraries(core PRIVATE dynarmic::dynarmic) endif() +if(ENABLE_OPENSSL) + target_sources(core PRIVATE + hle/service/ssl/ssl_backend_openssl.cpp) + target_link_libraries(core PRIVATE OpenSSL::SSL) +elseif (WIN32) + target_sources(core PRIVATE + hle/service/ssl/ssl_backend_schannel.cpp) + target_link_libraries(core PRIVATE Secur32) +else() + target_sources(core PRIVATE + hle/service/ssl/ssl_backend_none.cpp) +endif() + if (YUZU_USE_PRECOMPILED_HEADERS) target_precompile_headers(core PRIVATE precompiled_headers.h) endif() diff --git a/src/core/hle/service/sockets/bsd.cpp b/src/core/hle/service/sockets/bsd.cpp index bce45d321..6677689dc 100644 --- a/src/core/hle/service/sockets/bsd.cpp +++ b/src/core/hle/service/sockets/bsd.cpp @@ -20,6 +20,9 @@ #include "core/internal_network/sockets.h" #include "network/network.h" +using Common::Expected; +using Common::Unexpected; + namespace Service::Sockets { namespace { @@ -265,16 +268,19 @@ void BSD::GetSockOpt(HLERequestContext& ctx) { const u32 level = rp.Pop(); const auto optname = static_cast(rp.Pop()); - LOG_WARNING(Service, "(STUBBED) called. fd={} level={} optname=0x{:x}", fd, level, optname); - std::vector optval(ctx.GetWriteBufferSize()); + LOG_WARNING(Service, "called. fd={} level={} optname=0x{:x} len=0x{:x}", fd, level, optname, + optval.size()); + + Errno err = GetSockOptImpl(fd, level, optname, optval); + ctx.WriteBuffer(optval); IPC::ResponseBuilder rb{ctx, 5}; rb.Push(ResultSuccess); - rb.Push(-1); - rb.PushEnum(Errno::NOTCONN); + rb.Push(err == Errno::SUCCESS ? 0 : -1); + rb.PushEnum(err); rb.Push(static_cast(optval.size())); } @@ -436,6 +442,18 @@ void BSD::Close(HLERequestContext& ctx) { BuildErrnoResponse(ctx, CloseImpl(fd)); } +void BSD::DuplicateSocket(HLERequestContext& ctx) { + IPC::RequestParser rp{ctx}; + const s32 fd = rp.Pop(); + [[maybe_unused]] const u64 unused = rp.Pop(); + + Common::Expected res = DuplicateSocketImpl(fd); + IPC::ResponseBuilder rb{ctx, 4}; + rb.Push(ResultSuccess); + rb.Push(res.value_or(0)); // ret + rb.Push(res ? 0 : static_cast(res.error())); // bsd errno +} + void BSD::EventFd(HLERequestContext& ctx) { IPC::RequestParser rp{ctx}; const u64 initval = rp.Pop(); @@ -477,12 +495,12 @@ std::pair BSD::SocketImpl(Domain domain, Type type, Protocol protoco auto room_member = room_network.GetRoomMember().lock(); if (room_member && room_member->IsConnected()) { - descriptor.socket = std::make_unique(room_network); + descriptor.socket = std::make_shared(room_network); } else { - descriptor.socket = std::make_unique(); + descriptor.socket = std::make_shared(); } - descriptor.socket->Initialize(Translate(domain), Translate(type), Translate(type, protocol)); + descriptor.socket->Initialize(Translate(domain), Translate(type), Translate(protocol)); descriptor.is_connection_based = IsConnectionBased(type); return {fd, Errno::SUCCESS}; @@ -538,7 +556,7 @@ std::pair BSD::PollImpl(std::vector& write_buffer, std::spansocket.get(); - result.events = TranslatePollEventsToHost(pollfd.events); + result.events = Translate(pollfd.events); result.revents = Network::PollEvents{}; return result; }); @@ -547,7 +565,7 @@ std::pair BSD::PollImpl(std::vector& write_buffer, std::span& write_buffer) { } const SockAddrIn guest_addrin = Translate(addr_in); - ASSERT(write_buffer.size() == sizeof(guest_addrin)); + ASSERT(write_buffer.size() >= sizeof(guest_addrin)); + write_buffer.resize(sizeof(guest_addrin)); std::memcpy(write_buffer.data(), &guest_addrin, sizeof(guest_addrin)); return Translate(bsd_errno); } @@ -633,7 +652,8 @@ Errno BSD::GetSockNameImpl(s32 fd, std::vector& write_buffer) { } const SockAddrIn guest_addrin = Translate(addr_in); - ASSERT(write_buffer.size() == sizeof(guest_addrin)); + ASSERT(write_buffer.size() >= sizeof(guest_addrin)); + write_buffer.resize(sizeof(guest_addrin)); std::memcpy(write_buffer.data(), &guest_addrin, sizeof(guest_addrin)); return Translate(bsd_errno); } @@ -671,13 +691,47 @@ std::pair BSD::FcntlImpl(s32 fd, FcntlCmd cmd, s32 arg) { } } -Errno BSD::SetSockOptImpl(s32 fd, u32 level, OptName optname, size_t optlen, const void* optval) { - UNIMPLEMENTED_IF(level != 0xffff); // SOL_SOCKET +Errno BSD::GetSockOptImpl(s32 fd, u32 level, OptName optname, std::vector& optval) { + if (!IsFileDescriptorValid(fd)) { + return Errno::BADF; + } + + if (level != static_cast(SocketLevel::SOCKET)) { + UNIMPLEMENTED_MSG("Unknown getsockopt level"); + return Errno::SUCCESS; + } + + Network::SocketBase* const socket = file_descriptors[fd]->socket.get(); + + switch (optname) { + case OptName::ERROR_: { + auto [pending_err, getsockopt_err] = socket->GetPendingError(); + if (getsockopt_err == Network::Errno::SUCCESS) { + Errno translated_pending_err = Translate(pending_err); + ASSERT_OR_EXECUTE_MSG( + optval.size() == sizeof(Errno), { return Errno::INVAL; }, + "Incorrect getsockopt option size"); + optval.resize(sizeof(Errno)); + memcpy(optval.data(), &translated_pending_err, sizeof(Errno)); + } + return Translate(getsockopt_err); + } + default: + UNIMPLEMENTED_MSG("Unimplemented optname={}", optname); + return Errno::SUCCESS; + } +} +Errno BSD::SetSockOptImpl(s32 fd, u32 level, OptName optname, size_t optlen, const void* optval) { if (!IsFileDescriptorValid(fd)) { return Errno::BADF; } + if (level != static_cast(SocketLevel::SOCKET)) { + UNIMPLEMENTED_MSG("Unknown setsockopt level"); + return Errno::SUCCESS; + } + Network::SocketBase* const socket = file_descriptors[fd]->socket.get(); if (optname == OptName::LINGER) { @@ -711,6 +765,9 @@ Errno BSD::SetSockOptImpl(s32 fd, u32 level, OptName optname, size_t optlen, con return Translate(socket->SetSndTimeo(value)); case OptName::RCVTIMEO: return Translate(socket->SetRcvTimeo(value)); + case OptName::NOSIGPIPE: + LOG_WARNING(Service, "(STUBBED) setting NOSIGPIPE to {}", value); + return Errno::SUCCESS; default: UNIMPLEMENTED_MSG("Unimplemented optname={}", optname); return Errno::SUCCESS; @@ -841,6 +898,28 @@ Errno BSD::CloseImpl(s32 fd) { return bsd_errno; } +Expected BSD::DuplicateSocketImpl(s32 fd) { + if (!IsFileDescriptorValid(fd)) { + return Unexpected(Errno::BADF); + } + + const s32 new_fd = FindFreeFileDescriptorHandle(); + if (new_fd < 0) { + LOG_ERROR(Service, "No more file descriptors available"); + return Unexpected(Errno::MFILE); + } + + file_descriptors[new_fd] = file_descriptors[fd]; + return new_fd; +} + +std::optional> BSD::GetSocket(s32 fd) { + if (!IsFileDescriptorValid(fd)) { + return std::nullopt; + } + return file_descriptors[fd]->socket; +} + s32 BSD::FindFreeFileDescriptorHandle() noexcept { for (s32 fd = 0; fd < static_cast(file_descriptors.size()); ++fd) { if (!file_descriptors[fd]) { @@ -911,7 +990,7 @@ BSD::BSD(Core::System& system_, const char* name) {24, &BSD::Write, "Write"}, {25, &BSD::Read, "Read"}, {26, &BSD::Close, "Close"}, - {27, nullptr, "DuplicateSocket"}, + {27, &BSD::DuplicateSocket, "DuplicateSocket"}, {28, nullptr, "GetResourceStatistics"}, {29, nullptr, "RecvMMsg"}, {30, nullptr, "SendMMsg"}, diff --git a/src/core/hle/service/sockets/bsd.h b/src/core/hle/service/sockets/bsd.h index 30ae9c140..430edb97c 100644 --- a/src/core/hle/service/sockets/bsd.h +++ b/src/core/hle/service/sockets/bsd.h @@ -8,6 +8,7 @@ #include #include "common/common_types.h" +#include "common/expected.h" #include "common/socket_types.h" #include "core/hle/service/service.h" #include "core/hle/service/sockets/sockets.h" @@ -29,12 +30,19 @@ public: explicit BSD(Core::System& system_, const char* name); ~BSD() override; + // These methods are called from SSL; the first two are also called from + // this class for the corresponding IPC methods. + // On the real device, the SSL service makes IPC calls to this service. + Common::Expected DuplicateSocketImpl(s32 fd); + Errno CloseImpl(s32 fd); + std::optional> GetSocket(s32 fd); + private: /// Maximum number of file descriptors static constexpr size_t MAX_FD = 128; struct FileDescriptor { - std::unique_ptr socket; + std::shared_ptr socket; s32 flags = 0; bool is_connection_based = false; }; @@ -138,6 +146,7 @@ private: void Write(HLERequestContext& ctx); void Read(HLERequestContext& ctx); void Close(HLERequestContext& ctx); + void DuplicateSocket(HLERequestContext& ctx); void EventFd(HLERequestContext& ctx); template @@ -153,6 +162,7 @@ private: Errno GetSockNameImpl(s32 fd, std::vector& write_buffer); Errno ListenImpl(s32 fd, s32 backlog); std::pair FcntlImpl(s32 fd, FcntlCmd cmd, s32 arg); + Errno GetSockOptImpl(s32 fd, u32 level, OptName optname, std::vector& optval); Errno SetSockOptImpl(s32 fd, u32 level, OptName optname, size_t optlen, const void* optval); Errno ShutdownImpl(s32 fd, s32 how); std::pair RecvImpl(s32 fd, u32 flags, std::vector& message); @@ -161,7 +171,6 @@ private: std::pair SendImpl(s32 fd, u32 flags, std::span message); std::pair SendToImpl(s32 fd, u32 flags, std::span message, std::span addr); - Errno CloseImpl(s32 fd); s32 FindFreeFileDescriptorHandle() noexcept; bool IsFileDescriptorValid(s32 fd) const noexcept; diff --git a/src/core/hle/service/sockets/nsd.cpp b/src/core/hle/service/sockets/nsd.cpp index 6491a73be..22c3a31a0 100644 --- a/src/core/hle/service/sockets/nsd.cpp +++ b/src/core/hle/service/sockets/nsd.cpp @@ -1,10 +1,15 @@ // SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project // SPDX-License-Identifier: GPL-2.0-or-later +#include "core/hle/service/ipc_helpers.h" #include "core/hle/service/sockets/nsd.h" +#include "common/string_util.h" + namespace Service::Sockets { +constexpr Result ResultOverflow{ErrorModule::NSD, 6}; + NSD::NSD(Core::System& system_, const char* name) : ServiceFramework{system_, name} { // clang-format off static const FunctionInfo functions[] = { @@ -15,8 +20,8 @@ NSD::NSD(Core::System& system_, const char* name) : ServiceFramework{system_, na {13, nullptr, "DeleteSettings"}, {14, nullptr, "ImportSettings"}, {15, nullptr, "SetChangeEnvironmentIdentifierDisabled"}, - {20, nullptr, "Resolve"}, - {21, nullptr, "ResolveEx"}, + {20, &NSD::Resolve, "Resolve"}, + {21, &NSD::ResolveEx, "ResolveEx"}, {30, nullptr, "GetNasServiceSetting"}, {31, nullptr, "GetNasServiceSettingEx"}, {40, nullptr, "GetNasRequestFqdn"}, @@ -40,6 +45,55 @@ NSD::NSD(Core::System& system_, const char* name) : ServiceFramework{system_, na RegisterHandlers(functions); } +static ResultVal ResolveImpl(const std::string& fqdn_in) { + // The real implementation makes various substitutions. + // For now we just return the string as-is, which is good enough when not + // connecting to real Nintendo servers. + LOG_WARNING(Service, "(STUBBED) called({})", fqdn_in); + return fqdn_in; +} + +static Result ResolveCommon(const std::string& fqdn_in, std::array& fqdn_out) { + const auto res = ResolveImpl(fqdn_in); + if (res.Failed()) { + return res.Code(); + } + if (res->size() >= fqdn_out.size()) { + return ResultOverflow; + } + std::memcpy(fqdn_out.data(), res->c_str(), res->size() + 1); + return ResultSuccess; +} + +void NSD::Resolve(HLERequestContext& ctx) { + const std::string fqdn_in = Common::StringFromBuffer(ctx.ReadBuffer(0)); + + std::array fqdn_out{}; + Result res = ResolveCommon(fqdn_in, fqdn_out); + + ctx.WriteBuffer(fqdn_out); + IPC::ResponseBuilder rb{ctx, 2}; + rb.Push(res); +} + +void NSD::ResolveEx(HLERequestContext& ctx) { + const std::string fqdn_in = Common::StringFromBuffer(ctx.ReadBuffer(0)); + + std::array fqdn_out; + Result res = ResolveCommon(fqdn_in, fqdn_out); + + if (res.IsError()) { + IPC::ResponseBuilder rb{ctx, 2}; + rb.Push(res); + return; + } + + ctx.WriteBuffer(fqdn_out); + IPC::ResponseBuilder rb{ctx, 4}; + rb.Push(ResultSuccess); + rb.Push(ResultSuccess); +} + NSD::~NSD() = default; } // namespace Service::Sockets diff --git a/src/core/hle/service/sockets/nsd.h b/src/core/hle/service/sockets/nsd.h index 5cc12b855..a7379a8a9 100644 --- a/src/core/hle/service/sockets/nsd.h +++ b/src/core/hle/service/sockets/nsd.h @@ -15,6 +15,10 @@ class NSD final : public ServiceFramework { public: explicit NSD(Core::System& system_, const char* name); ~NSD() override; + +private: + void Resolve(HLERequestContext& ctx); + void ResolveEx(HLERequestContext& ctx); }; } // namespace Service::Sockets diff --git a/src/core/hle/service/sockets/sfdnsres.cpp b/src/core/hle/service/sockets/sfdnsres.cpp index 132dd5797..1196fb86c 100644 --- a/src/core/hle/service/sockets/sfdnsres.cpp +++ b/src/core/hle/service/sockets/sfdnsres.cpp @@ -10,27 +10,18 @@ #include "core/core.h" #include "core/hle/service/ipc_helpers.h" #include "core/hle/service/sockets/sfdnsres.h" +#include "core/hle/service/sockets/sockets.h" +#include "core/hle/service/sockets/sockets_translate.h" +#include "core/internal_network/network.h" #include "core/memory.h" -#ifdef _WIN32 -#include -#elif YUZU_UNIX -#include -#include -#include -#include -#ifndef EAI_NODATA -#define EAI_NODATA EAI_NONAME -#endif -#endif - namespace Service::Sockets { SFDNSRES::SFDNSRES(Core::System& system_) : ServiceFramework{system_, "sfdnsres"} { static const FunctionInfo functions[] = { {0, nullptr, "SetDnsAddressesPrivateRequest"}, {1, nullptr, "GetDnsAddressPrivateRequest"}, - {2, nullptr, "GetHostByNameRequest"}, + {2, &SFDNSRES::GetHostByNameRequest, "GetHostByNameRequest"}, {3, nullptr, "GetHostByAddrRequest"}, {4, nullptr, "GetHostStringErrorRequest"}, {5, nullptr, "GetGaiStringErrorRequest"}, @@ -38,11 +29,11 @@ SFDNSRES::SFDNSRES(Core::System& system_) : ServiceFramework{system_, "sfdnsres" {7, nullptr, "GetNameInfoRequest"}, {8, nullptr, "RequestCancelHandleRequest"}, {9, nullptr, "CancelRequest"}, - {10, nullptr, "GetHostByNameRequestWithOptions"}, + {10, &SFDNSRES::GetHostByNameRequestWithOptions, "GetHostByNameRequestWithOptions"}, {11, nullptr, "GetHostByAddrRequestWithOptions"}, {12, &SFDNSRES::GetAddrInfoRequestWithOptions, "GetAddrInfoRequestWithOptions"}, {13, nullptr, "GetNameInfoRequestWithOptions"}, - {14, nullptr, "ResolverSetOptionRequest"}, + {14, &SFDNSRES::ResolverSetOptionRequest, "ResolverSetOptionRequest"}, {15, nullptr, "ResolverGetOptionRequest"}, }; RegisterHandlers(functions); @@ -59,188 +50,246 @@ enum class NetDbError : s32 { NoData = 4, }; -static NetDbError AddrInfoErrorToNetDbError(s32 result) { - // Best effort guess to map errors +static NetDbError GetAddrInfoErrorToNetDbError(GetAddrInfoError result) { + // These combinations have been verified on console (but are not + // exhaustive). switch (result) { - case 0: + case GetAddrInfoError::SUCCESS: return NetDbError::Success; - case EAI_AGAIN: + case GetAddrInfoError::AGAIN: return NetDbError::TryAgain; - case EAI_NODATA: - return NetDbError::NoData; + case GetAddrInfoError::NODATA: + return NetDbError::HostNotFound; + case GetAddrInfoError::SERVICE: + return NetDbError::Success; default: return NetDbError::HostNotFound; } } -static std::vector SerializeAddrInfo(const addrinfo* addrinfo, s32 result_code, +static Errno GetAddrInfoErrorToErrno(GetAddrInfoError result) { + // These combinations have been verified on console (but are not + // exhaustive). + switch (result) { + case GetAddrInfoError::SUCCESS: + // Note: Sometimes a successful lookup sets errno to EADDRNOTAVAIL for + // some reason, but that doesn't seem useful to implement. + return Errno::SUCCESS; + case GetAddrInfoError::AGAIN: + return Errno::SUCCESS; + case GetAddrInfoError::NODATA: + return Errno::SUCCESS; + case GetAddrInfoError::SERVICE: + return Errno::INVAL; + default: + return Errno::SUCCESS; + } +} + +template +static void Append(std::vector& vec, T t) { + size_t off = vec.size(); + vec.resize(off + sizeof(T)); + std::memcpy(vec.data() + off, &t, sizeof(T)); +} + +static void AppendNulTerminated(std::vector& vec, std::string_view str) { + size_t off = vec.size(); + vec.resize(off + str.size() + 1); + std::memcpy(vec.data() + off, str.data(), str.size()); +} + +// We implement gethostbyname using the host's getaddrinfo rather than the +// host's gethostbyname, because it simplifies portability: e.g., getaddrinfo +// behaves the same on Unix and Windows, unlike gethostbyname where Windows +// doesn't implement h_errno. +static std::vector SerializeAddrInfoAsHostEnt(const std::vector& vec, + std::string_view host) { + + std::vector data; + // h_name: use the input hostname (append nul-terminated) + AppendNulTerminated(data, host); + // h_aliases: leave empty + + Append(data, 0); // count of h_aliases + // (If the count were nonzero, the aliases would be appended as nul-terminated here.) + Append(data, static_cast(Domain::INET)); // h_addrtype + Append(data, sizeof(Network::IPv4Address)); // h_length + // h_addr_list: + size_t count = vec.size(); + ASSERT(count <= UINT32_MAX); + Append(data, static_cast(count)); + for (const Network::AddrInfo& addrinfo : vec) { + // On the Switch, this is passed through htonl despite already being + // big-endian, so it ends up as little-endian. + Append(data, Network::IPv4AddressToInteger(addrinfo.addr.ip)); + + LOG_INFO(Service, "Resolved host '{}' to IPv4 address {}", host, + Network::IPv4AddressToString(addrinfo.addr.ip)); + } + return data; +} + +static std::pair GetHostByNameRequestImpl(HLERequestContext& ctx) { + struct Parameters { + u8 use_nsd_resolve; + u32 cancel_handle; + u64 process_id; + }; + + IPC::RequestParser rp{ctx}; + const auto parameters = rp.PopRaw(); + + LOG_WARNING( + Service, + "called with ignored parameters: use_nsd_resolve={}, cancel_handle={}, process_id={}", + parameters.use_nsd_resolve, parameters.cancel_handle, parameters.process_id); + + const auto host_buffer = ctx.ReadBuffer(0); + const std::string host = Common::StringFromBuffer(host_buffer); + // For now, ignore options, which are in input buffer 1 for GetHostByNameRequestWithOptions. + + auto res = Network::GetAddrInfo(host, /*service*/ std::nullopt); + if (!res.has_value()) { + return {0, Translate(res.error())}; + } + + std::vector data = SerializeAddrInfoAsHostEnt(res.value(), host); + u32 data_size = static_cast(data.size()); + ctx.WriteBuffer(data, 0); + + return {data_size, GetAddrInfoError::SUCCESS}; +} + +void SFDNSRES::GetHostByNameRequest(HLERequestContext& ctx) { + auto [data_size, emu_gai_err] = GetHostByNameRequestImpl(ctx); + + IPC::ResponseBuilder rb{ctx, 5}; + rb.Push(ResultSuccess); + rb.Push(static_cast(GetAddrInfoErrorToNetDbError(emu_gai_err))); // netdb error code + rb.Push(static_cast(GetAddrInfoErrorToErrno(emu_gai_err))); // errno + rb.Push(data_size); // serialized size +} + +void SFDNSRES::GetHostByNameRequestWithOptions(HLERequestContext& ctx) { + auto [data_size, emu_gai_err] = GetHostByNameRequestImpl(ctx); + + IPC::ResponseBuilder rb{ctx, 5}; + rb.Push(ResultSuccess); + rb.Push(data_size); // serialized size + rb.Push(static_cast(GetAddrInfoErrorToNetDbError(emu_gai_err))); // netdb error code + rb.Push(static_cast(GetAddrInfoErrorToErrno(emu_gai_err))); // errno +} + +static std::vector SerializeAddrInfo(const std::vector& vec, std::string_view host) { // Adapted from // https://github.com/switchbrew/libnx/blob/c5a9a909a91657a9818a3b7e18c9b91ff0cbb6e3/nx/source/runtime/resolver.c#L190 std::vector data; - auto* current = addrinfo; - while (current != nullptr) { - struct SerializedResponseHeader { - u32 magic; - s32 flags; - s32 family; - s32 socket_type; - s32 protocol; - u32 address_length; - }; - static_assert(sizeof(SerializedResponseHeader) == 0x18, - "Response header size must be 0x18 bytes"); - - constexpr auto header_size = sizeof(SerializedResponseHeader); - const auto addr_size = - current->ai_addr && current->ai_addrlen > 0 ? current->ai_addrlen : 4; - const auto canonname_size = current->ai_canonname ? strlen(current->ai_canonname) + 1 : 1; - - const auto last_size = data.size(); - data.resize(last_size + header_size + addr_size + canonname_size); - - // Header in network byte order - SerializedResponseHeader header{}; - - constexpr auto HEADER_MAGIC = 0xBEEFCAFE; - header.magic = htonl(HEADER_MAGIC); - header.family = htonl(current->ai_family); - header.flags = htonl(current->ai_flags); - header.socket_type = htonl(current->ai_socktype); - header.protocol = htonl(current->ai_protocol); - header.address_length = current->ai_addr ? htonl((u32)current->ai_addrlen) : 0; - - auto* header_ptr = data.data() + last_size; - std::memcpy(header_ptr, &header, header_size); - - if (header.address_length == 0) { - std::memset(header_ptr + header_size, 0, 4); - } else { - switch (current->ai_family) { - case AF_INET: { - struct SockAddrIn { - s16 sin_family; - u16 sin_port; - u32 sin_addr; - u8 sin_zero[8]; - }; - - SockAddrIn serialized_addr{}; - const auto addr = *reinterpret_cast(current->ai_addr); - serialized_addr.sin_port = htons(addr.sin_port); - serialized_addr.sin_family = htons(addr.sin_family); - serialized_addr.sin_addr = htonl(addr.sin_addr.s_addr); - std::memcpy(header_ptr + header_size, &serialized_addr, sizeof(SockAddrIn)); - - char addr_string_buf[64]{}; - inet_ntop(AF_INET, &addr.sin_addr, addr_string_buf, std::size(addr_string_buf)); - LOG_INFO(Service, "Resolved host '{}' to IPv4 address {}", host, addr_string_buf); - break; - } - case AF_INET6: { - struct SockAddrIn6 { - s16 sin6_family; - u16 sin6_port; - u32 sin6_flowinfo; - u8 sin6_addr[16]; - u32 sin6_scope_id; - }; - - SockAddrIn6 serialized_addr{}; - const auto addr = *reinterpret_cast(current->ai_addr); - serialized_addr.sin6_family = htons(addr.sin6_family); - serialized_addr.sin6_port = htons(addr.sin6_port); - serialized_addr.sin6_flowinfo = htonl(addr.sin6_flowinfo); - serialized_addr.sin6_scope_id = htonl(addr.sin6_scope_id); - std::memcpy(serialized_addr.sin6_addr, &addr.sin6_addr, - sizeof(SockAddrIn6::sin6_addr)); - std::memcpy(header_ptr + header_size, &serialized_addr, sizeof(SockAddrIn6)); - - char addr_string_buf[64]{}; - inet_ntop(AF_INET6, &addr.sin6_addr, addr_string_buf, std::size(addr_string_buf)); - LOG_INFO(Service, "Resolved host '{}' to IPv6 address {}", host, addr_string_buf); - break; - } - default: - std::memcpy(header_ptr + header_size, current->ai_addr, addr_size); - break; - } - } - if (current->ai_canonname) { - std::memcpy(header_ptr + addr_size, current->ai_canonname, canonname_size); + for (const Network::AddrInfo& addrinfo : vec) { + // serialized addrinfo: + Append(data, 0xBEEFCAFE); // magic + Append(data, 0); // ai_flags + Append(data, static_cast(Translate(addrinfo.family))); // ai_family + Append(data, static_cast(Translate(addrinfo.socket_type))); // ai_socktype + Append(data, static_cast(Translate(addrinfo.protocol))); // ai_protocol + Append(data, sizeof(SockAddrIn)); // ai_addrlen + // ^ *not* sizeof(SerializedSockAddrIn), not that it matters since they're the same size + + // ai_addr: + Append(data, static_cast(Translate(addrinfo.addr.family))); // sin_family + // On the Switch, the following fields are passed through htonl despite + // already being big-endian, so they end up as little-endian. + Append(data, addrinfo.addr.portno); // sin_port + Append(data, Network::IPv4AddressToInteger(addrinfo.addr.ip)); // sin_addr + data.resize(data.size() + 8, 0); // sin_zero + + if (addrinfo.canon_name.has_value()) { + AppendNulTerminated(data, *addrinfo.canon_name); } else { - *(header_ptr + header_size + addr_size) = 0; + data.push_back(0); } - current = current->ai_next; + LOG_INFO(Service, "Resolved host '{}' to IPv4 address {}", host, + Network::IPv4AddressToString(addrinfo.addr.ip)); } - // 4-byte sentinel value - data.push_back(0); - data.push_back(0); - data.push_back(0); - data.push_back(0); + data.resize(data.size() + 4, 0); // 4-byte sentinel value return data; } -static std::pair GetAddrInfoRequestImpl(HLERequestContext& ctx) { +static std::pair GetAddrInfoRequestImpl(HLERequestContext& ctx) { struct Parameters { u8 use_nsd_resolve; - u32 unknown; + u32 cancel_handle; u64 process_id; }; IPC::RequestParser rp{ctx}; const auto parameters = rp.PopRaw(); - LOG_WARNING(Service, - "called with ignored parameters: use_nsd_resolve={}, unknown={}, process_id={}", - parameters.use_nsd_resolve, parameters.unknown, parameters.process_id); + LOG_WARNING( + Service, + "called with ignored parameters: use_nsd_resolve={}, cancel_handle={}, process_id={}", + parameters.use_nsd_resolve, parameters.cancel_handle, parameters.process_id); + + // TODO: If use_nsd_resolve is true, pass the name through NSD::Resolve + // before looking up. const auto host_buffer = ctx.ReadBuffer(0); const std::string host = Common::StringFromBuffer(host_buffer); - const auto service_buffer = ctx.ReadBuffer(1); - const std::string service = Common::StringFromBuffer(service_buffer); - - addrinfo* addrinfo; - // Pass null for hints. Serialized hints are also passed in a buffer, but are ignored for now - s32 result_code = getaddrinfo(host.c_str(), service.c_str(), nullptr, &addrinfo); + std::optional service = std::nullopt; + if (ctx.CanReadBuffer(1)) { + std::span service_buffer = ctx.ReadBuffer(1); + service = Common::StringFromBuffer(service_buffer); + } - u32 data_size = 0; - if (result_code == 0 && addrinfo != nullptr) { - const std::vector& data = SerializeAddrInfo(addrinfo, result_code, host); - data_size = static_cast(data.size()); - freeaddrinfo(addrinfo); + // Serialized hints are also passed in a buffer, but are ignored for now. - ctx.WriteBuffer(data, 0); + auto res = Network::GetAddrInfo(host, service); + if (!res.has_value()) { + return {0, Translate(res.error())}; } - return std::make_pair(data_size, result_code); + std::vector data = SerializeAddrInfo(res.value(), host); + u32 data_size = static_cast(data.size()); + ctx.WriteBuffer(data, 0); + + return {data_size, GetAddrInfoError::SUCCESS}; } void SFDNSRES::GetAddrInfoRequest(HLERequestContext& ctx) { - auto [data_size, result_code] = GetAddrInfoRequestImpl(ctx); + auto [data_size, emu_gai_err] = GetAddrInfoRequestImpl(ctx); - IPC::ResponseBuilder rb{ctx, 4}; + IPC::ResponseBuilder rb{ctx, 5}; rb.Push(ResultSuccess); - rb.Push(static_cast(AddrInfoErrorToNetDbError(result_code))); // NetDBErrorCode - rb.Push(result_code); // errno - rb.Push(data_size); // serialized size + rb.Push(static_cast(GetAddrInfoErrorToErrno(emu_gai_err))); // errno + rb.Push(static_cast(emu_gai_err)); // getaddrinfo error code + rb.Push(data_size); // serialized size } void SFDNSRES::GetAddrInfoRequestWithOptions(HLERequestContext& ctx) { // Additional options are ignored - auto [data_size, result_code] = GetAddrInfoRequestImpl(ctx); + auto [data_size, emu_gai_err] = GetAddrInfoRequestImpl(ctx); + + IPC::ResponseBuilder rb{ctx, 6}; + rb.Push(ResultSuccess); + rb.Push(data_size); // serialized size + rb.Push(static_cast(emu_gai_err)); // getaddrinfo error code + rb.Push(static_cast(GetAddrInfoErrorToNetDbError(emu_gai_err))); // netdb error code + rb.Push(static_cast(GetAddrInfoErrorToErrno(emu_gai_err))); // errno +} + +void SFDNSRES::ResolverSetOptionRequest(HLERequestContext& ctx) { + LOG_WARNING(Service, "(STUBBED) called"); + + IPC::ResponseBuilder rb{ctx, 3}; - IPC::ResponseBuilder rb{ctx, 5}; rb.Push(ResultSuccess); - rb.Push(data_size); // serialized size - rb.Push(result_code); // errno - rb.Push(static_cast(AddrInfoErrorToNetDbError(result_code))); // NetDBErrorCode - rb.Push(0); + rb.Push(0); // bsd errno } } // namespace Service::Sockets diff --git a/src/core/hle/service/sockets/sfdnsres.h b/src/core/hle/service/sockets/sfdnsres.h index 18e3cd60c..d99a9d560 100644 --- a/src/core/hle/service/sockets/sfdnsres.h +++ b/src/core/hle/service/sockets/sfdnsres.h @@ -17,8 +17,11 @@ public: ~SFDNSRES() override; private: + void GetHostByNameRequest(HLERequestContext& ctx); + void GetHostByNameRequestWithOptions(HLERequestContext& ctx); void GetAddrInfoRequest(HLERequestContext& ctx); void GetAddrInfoRequestWithOptions(HLERequestContext& ctx); + void ResolverSetOptionRequest(HLERequestContext& ctx); }; } // namespace Service::Sockets diff --git a/src/core/hle/service/sockets/sockets.h b/src/core/hle/service/sockets/sockets.h index acd2dae7b..77426c46e 100644 --- a/src/core/hle/service/sockets/sockets.h +++ b/src/core/hle/service/sockets/sockets.h @@ -22,13 +22,35 @@ enum class Errno : u32 { CONNRESET = 104, NOTCONN = 107, TIMEDOUT = 110, + INPROGRESS = 115, +}; + +enum class GetAddrInfoError : s32 { + SUCCESS = 0, + ADDRFAMILY = 1, + AGAIN = 2, + BADFLAGS = 3, + FAIL = 4, + FAMILY = 5, + MEMORY = 6, + NODATA = 7, + NONAME = 8, + SERVICE = 9, + SOCKTYPE = 10, + SYSTEM = 11, + BADHINTS = 12, + PROTOCOL = 13, + OVERFLOW_ = 14, // avoid name collision with Windows macro + OTHER = 15, }; enum class Domain : u32 { + Unspecified = 0, INET = 2, }; enum class Type : u32 { + Unspecified = 0, STREAM = 1, DGRAM = 2, RAW = 3, @@ -36,12 +58,16 @@ enum class Type : u32 { }; enum class Protocol : u32 { - UNSPECIFIED = 0, + Unspecified = 0, ICMP = 1, TCP = 6, UDP = 17, }; +enum class SocketLevel : u32 { + SOCKET = 0xffff, // i.e. SOL_SOCKET +}; + enum class OptName : u32 { REUSEADDR = 0x4, KEEPALIVE = 0x8, @@ -51,6 +77,8 @@ enum class OptName : u32 { RCVBUF = 0x1002, SNDTIMEO = 0x1005, RCVTIMEO = 0x1006, + ERROR_ = 0x1007, // avoid name collision with Windows macro + NOSIGPIPE = 0x800, // at least according to libnx }; enum class ShutdownHow : s32 { @@ -80,6 +108,9 @@ enum class PollEvents : u16 { Err = 1 << 3, Hup = 1 << 4, Nval = 1 << 5, + RdNorm = 1 << 6, + RdBand = 1 << 7, + WrBand = 1 << 8, }; DECLARE_ENUM_FLAG_OPERATORS(PollEvents); diff --git a/src/core/hle/service/sockets/sockets_translate.cpp b/src/core/hle/service/sockets/sockets_translate.cpp index 594e58f90..2f9a0e39c 100644 --- a/src/core/hle/service/sockets/sockets_translate.cpp +++ b/src/core/hle/service/sockets/sockets_translate.cpp @@ -29,6 +29,8 @@ Errno Translate(Network::Errno value) { return Errno::TIMEDOUT; case Network::Errno::CONNRESET: return Errno::CONNRESET; + case Network::Errno::INPROGRESS: + return Errno::INPROGRESS; default: UNIMPLEMENTED_MSG("Unimplemented errno={}", value); return Errno::SUCCESS; @@ -39,8 +41,50 @@ std::pair Translate(std::pair value) { return {value.first, Translate(value.second)}; } +GetAddrInfoError Translate(Network::GetAddrInfoError error) { + switch (error) { + case Network::GetAddrInfoError::SUCCESS: + return GetAddrInfoError::SUCCESS; + case Network::GetAddrInfoError::ADDRFAMILY: + return GetAddrInfoError::ADDRFAMILY; + case Network::GetAddrInfoError::AGAIN: + return GetAddrInfoError::AGAIN; + case Network::GetAddrInfoError::BADFLAGS: + return GetAddrInfoError::BADFLAGS; + case Network::GetAddrInfoError::FAIL: + return GetAddrInfoError::FAIL; + case Network::GetAddrInfoError::FAMILY: + return GetAddrInfoError::FAMILY; + case Network::GetAddrInfoError::MEMORY: + return GetAddrInfoError::MEMORY; + case Network::GetAddrInfoError::NODATA: + return GetAddrInfoError::NODATA; + case Network::GetAddrInfoError::NONAME: + return GetAddrInfoError::NONAME; + case Network::GetAddrInfoError::SERVICE: + return GetAddrInfoError::SERVICE; + case Network::GetAddrInfoError::SOCKTYPE: + return GetAddrInfoError::SOCKTYPE; + case Network::GetAddrInfoError::SYSTEM: + return GetAddrInfoError::SYSTEM; + case Network::GetAddrInfoError::BADHINTS: + return GetAddrInfoError::BADHINTS; + case Network::GetAddrInfoError::PROTOCOL: + return GetAddrInfoError::PROTOCOL; + case Network::GetAddrInfoError::OVERFLOW_: + return GetAddrInfoError::OVERFLOW_; + case Network::GetAddrInfoError::OTHER: + return GetAddrInfoError::OTHER; + default: + UNIMPLEMENTED_MSG("Unimplemented GetAddrInfoError={}", error); + return GetAddrInfoError::OTHER; + } +} + Network::Domain Translate(Domain domain) { switch (domain) { + case Domain::Unspecified: + return Network::Domain::Unspecified; case Domain::INET: return Network::Domain::INET; default: @@ -51,6 +95,8 @@ Network::Domain Translate(Domain domain) { Domain Translate(Network::Domain domain) { switch (domain) { + case Network::Domain::Unspecified: + return Domain::Unspecified; case Network::Domain::INET: return Domain::INET; default: @@ -61,39 +107,69 @@ Domain Translate(Network::Domain domain) { Network::Type Translate(Type type) { switch (type) { + case Type::Unspecified: + return Network::Type::Unspecified; case Type::STREAM: return Network::Type::STREAM; case Type::DGRAM: return Network::Type::DGRAM; + case Type::RAW: + return Network::Type::RAW; + case Type::SEQPACKET: + return Network::Type::SEQPACKET; default: UNIMPLEMENTED_MSG("Unimplemented type={}", type); return Network::Type{}; } } -Network::Protocol Translate(Type type, Protocol protocol) { +Type Translate(Network::Type type) { + switch (type) { + case Network::Type::Unspecified: + return Type::Unspecified; + case Network::Type::STREAM: + return Type::STREAM; + case Network::Type::DGRAM: + return Type::DGRAM; + case Network::Type::RAW: + return Type::RAW; + case Network::Type::SEQPACKET: + return Type::SEQPACKET; + default: + UNIMPLEMENTED_MSG("Unimplemented type={}", type); + return Type{}; + } +} + +Network::Protocol Translate(Protocol protocol) { switch (protocol) { - case Protocol::UNSPECIFIED: - LOG_WARNING(Service, "Unspecified protocol, assuming protocol from type"); - switch (type) { - case Type::DGRAM: - return Network::Protocol::UDP; - case Type::STREAM: - return Network::Protocol::TCP; - default: - return Network::Protocol::TCP; - } + case Protocol::Unspecified: + return Network::Protocol::Unspecified; case Protocol::TCP: return Network::Protocol::TCP; case Protocol::UDP: return Network::Protocol::UDP; default: UNIMPLEMENTED_MSG("Unimplemented protocol={}", protocol); - return Network::Protocol::TCP; + return Network::Protocol::Unspecified; + } +} + +Protocol Translate(Network::Protocol protocol) { + switch (protocol) { + case Network::Protocol::Unspecified: + return Protocol::Unspecified; + case Network::Protocol::TCP: + return Protocol::TCP; + case Network::Protocol::UDP: + return Protocol::UDP; + default: + UNIMPLEMENTED_MSG("Unimplemented protocol={}", protocol); + return Protocol::Unspecified; } } -Network::PollEvents TranslatePollEventsToHost(PollEvents flags) { +Network::PollEvents Translate(PollEvents flags) { Network::PollEvents result{}; const auto translate = [&result, &flags](PollEvents from, Network::PollEvents to) { if (True(flags & from)) { @@ -107,12 +183,15 @@ Network::PollEvents TranslatePollEventsToHost(PollEvents flags) { translate(PollEvents::Err, Network::PollEvents::Err); translate(PollEvents::Hup, Network::PollEvents::Hup); translate(PollEvents::Nval, Network::PollEvents::Nval); + translate(PollEvents::RdNorm, Network::PollEvents::RdNorm); + translate(PollEvents::RdBand, Network::PollEvents::RdBand); + translate(PollEvents::WrBand, Network::PollEvents::WrBand); UNIMPLEMENTED_IF_MSG((u16)flags != 0, "Unimplemented flags={}", (u16)flags); return result; } -PollEvents TranslatePollEventsToGuest(Network::PollEvents flags) { +PollEvents Translate(Network::PollEvents flags) { PollEvents result{}; const auto translate = [&result, &flags](Network::PollEvents from, PollEvents to) { if (True(flags & from)) { @@ -127,13 +206,18 @@ PollEvents TranslatePollEventsToGuest(Network::PollEvents flags) { translate(Network::PollEvents::Err, PollEvents::Err); translate(Network::PollEvents::Hup, PollEvents::Hup); translate(Network::PollEvents::Nval, PollEvents::Nval); + translate(Network::PollEvents::RdNorm, PollEvents::RdNorm); + translate(Network::PollEvents::RdBand, PollEvents::RdBand); + translate(Network::PollEvents::WrBand, PollEvents::WrBand); UNIMPLEMENTED_IF_MSG((u16)flags != 0, "Unimplemented flags={}", (u16)flags); return result; } Network::SockAddrIn Translate(SockAddrIn value) { - ASSERT(value.len == 0 || value.len == sizeof(value)); + // Note: 6 is incorrect, but can be passed by homebrew (because libnx sets + // sin_len to 6 when deserializing getaddrinfo results). + ASSERT(value.len == 0 || value.len == sizeof(value) || value.len == 6); return { .family = Translate(static_cast(value.family)), diff --git a/src/core/hle/service/sockets/sockets_translate.h b/src/core/hle/service/sockets/sockets_translate.h index c93291d3e..694868b37 100644 --- a/src/core/hle/service/sockets/sockets_translate.h +++ b/src/core/hle/service/sockets/sockets_translate.h @@ -17,6 +17,9 @@ Errno Translate(Network::Errno value); /// Translate abstract return value errno pair to guest return value errno pair std::pair Translate(std::pair value); +/// Translate abstract getaddrinfo error to guest getaddrinfo error +GetAddrInfoError Translate(Network::GetAddrInfoError value); + /// Translate guest domain to abstract domain Network::Domain Translate(Domain domain); @@ -26,14 +29,20 @@ Domain Translate(Network::Domain domain); /// Translate guest type to abstract type Network::Type Translate(Type type); +/// Translate abstract type to guest type +Type Translate(Network::Type type); + /// Translate guest protocol to abstract protocol -Network::Protocol Translate(Type type, Protocol protocol); +Network::Protocol Translate(Protocol protocol); -/// Translate abstract poll event flags to guest poll event flags -Network::PollEvents TranslatePollEventsToHost(PollEvents flags); +/// Translate abstract protocol to guest protocol +Protocol Translate(Network::Protocol protocol); /// Translate guest poll event flags to abstract poll event flags -PollEvents TranslatePollEventsToGuest(Network::PollEvents flags); +Network::PollEvents Translate(PollEvents flags); + +/// Translate abstract poll event flags to guest poll event flags +PollEvents Translate(Network::PollEvents flags); /// Translate guest socket address structure to abstract socket address structure Network::SockAddrIn Translate(SockAddrIn value); diff --git a/src/core/hle/service/ssl/ssl.cpp b/src/core/hle/service/ssl/ssl.cpp index 2b99dd7ac..a3b54c7f0 100644 --- a/src/core/hle/service/ssl/ssl.cpp +++ b/src/core/hle/service/ssl/ssl.cpp @@ -1,10 +1,18 @@ // SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project // SPDX-License-Identifier: GPL-2.0-or-later +#include "common/string_util.h" + +#include "core/core.h" #include "core/hle/service/ipc_helpers.h" #include "core/hle/service/server_manager.h" #include "core/hle/service/service.h" +#include "core/hle/service/sm/sm.h" +#include "core/hle/service/sockets/bsd.h" #include "core/hle/service/ssl/ssl.h" +#include "core/hle/service/ssl/ssl_backend.h" +#include "core/internal_network/network.h" +#include "core/internal_network/sockets.h" namespace Service::SSL { @@ -20,6 +28,18 @@ enum class ContextOption : u32 { CrlImportDateCheckEnable = 1, }; +// This is nn::ssl::Connection::IoMode +enum class IoMode : u32 { + Blocking = 1, + NonBlocking = 2, +}; + +// This is nn::ssl::sf::OptionType +enum class OptionType : u32 { + DoNotCloseSocket = 0, + GetServerCertChain = 1, +}; + // This is nn::ssl::sf::SslVersion struct SslVersion { union { @@ -34,35 +54,42 @@ struct SslVersion { }; }; +struct SslContextSharedData { + u32 connection_count = 0; +}; + class ISslConnection final : public ServiceFramework { public: - explicit ISslConnection(Core::System& system_, SslVersion version) - : ServiceFramework{system_, "ISslConnection"}, ssl_version{version} { + explicit ISslConnection(Core::System& system_, SslVersion version, + std::shared_ptr& shared_data, + std::unique_ptr&& backend) + : ServiceFramework{system_, "ISslConnection"}, ssl_version{version}, + shared_data_{shared_data}, backend_{std::move(backend)} { // clang-format off static const FunctionInfo functions[] = { - {0, nullptr, "SetSocketDescriptor"}, - {1, nullptr, "SetHostName"}, - {2, nullptr, "SetVerifyOption"}, - {3, nullptr, "SetIoMode"}, + {0, &ISslConnection::SetSocketDescriptor, "SetSocketDescriptor"}, + {1, &ISslConnection::SetHostName, "SetHostName"}, + {2, &ISslConnection::SetVerifyOption, "SetVerifyOption"}, + {3, &ISslConnection::SetIoMode, "SetIoMode"}, {4, nullptr, "GetSocketDescriptor"}, {5, nullptr, "GetHostName"}, {6, nullptr, "GetVerifyOption"}, {7, nullptr, "GetIoMode"}, - {8, nullptr, "DoHandshake"}, - {9, nullptr, "DoHandshakeGetServerCert"}, - {10, nullptr, "Read"}, - {11, nullptr, "Write"}, - {12, nullptr, "Pending"}, + {8, &ISslConnection::DoHandshake, "DoHandshake"}, + {9, &ISslConnection::DoHandshakeGetServerCert, "DoHandshakeGetServerCert"}, + {10, &ISslConnection::Read, "Read"}, + {11, &ISslConnection::Write, "Write"}, + {12, &ISslConnection::Pending, "Pending"}, {13, nullptr, "Peek"}, {14, nullptr, "Poll"}, {15, nullptr, "GetVerifyCertError"}, {16, nullptr, "GetNeededServerCertBufferSize"}, - {17, nullptr, "SetSessionCacheMode"}, + {17, &ISslConnection::SetSessionCacheMode, "SetSessionCacheMode"}, {18, nullptr, "GetSessionCacheMode"}, {19, nullptr, "FlushSessionCache"}, {20, nullptr, "SetRenegotiationMode"}, {21, nullptr, "GetRenegotiationMode"}, - {22, nullptr, "SetOption"}, + {22, &ISslConnection::SetOption, "SetOption"}, {23, nullptr, "GetOption"}, {24, nullptr, "GetVerifyCertErrors"}, {25, nullptr, "GetCipherInfo"}, @@ -80,21 +107,295 @@ public: // clang-format on RegisterHandlers(functions); + + shared_data->connection_count++; + } + + ~ISslConnection() { + shared_data_->connection_count--; + if (fd_to_close_.has_value()) { + s32 fd = *fd_to_close_; + if (!do_not_close_socket_) { + LOG_ERROR(Service_SSL, + "do_not_close_socket was changed after setting socket; is this right?"); + } else { + auto bsd = system.ServiceManager().GetService("bsd:u"); + if (bsd) { + auto err = bsd->CloseImpl(fd); + if (err != Service::Sockets::Errno::SUCCESS) { + LOG_ERROR(Service_SSL, "failed to close duplicated socket: {}", err); + } + } + } + } } private: SslVersion ssl_version; + std::shared_ptr shared_data_; + std::unique_ptr backend_; + std::optional fd_to_close_; + bool do_not_close_socket_ = false; + bool get_server_cert_chain_ = false; + std::shared_ptr socket_; + bool did_set_host_name_ = false; + bool did_handshake_ = false; + + ResultVal SetSocketDescriptorImpl(s32 fd) { + LOG_DEBUG(Service_SSL, "called, fd={}", fd); + ASSERT(!did_handshake_); + auto bsd = system.ServiceManager().GetService("bsd:u"); + ASSERT_OR_EXECUTE(bsd, { return ResultInternalError; }); + s32 ret_fd; + // Based on https://switchbrew.org/wiki/SSL_services#SetSocketDescriptor + if (do_not_close_socket_) { + auto res = bsd->DuplicateSocketImpl(fd); + if (!res.has_value()) { + LOG_ERROR(Service_SSL, "failed to duplicate socket"); + return ResultInvalidSocket; + } + fd = *res; + fd_to_close_ = fd; + ret_fd = fd; + } else { + ret_fd = -1; + } + std::optional> sock = bsd->GetSocket(fd); + if (!sock.has_value()) { + LOG_ERROR(Service_SSL, "invalid socket fd {}", fd); + return ResultInvalidSocket; + } + socket_ = std::move(*sock); + backend_->SetSocket(socket_); + return ret_fd; + } + + Result SetHostNameImpl(const std::string& hostname) { + LOG_DEBUG(Service_SSL, "SetHostNameImpl({})", hostname); + ASSERT(!did_handshake_); + Result res = backend_->SetHostName(hostname); + if (res == ResultSuccess) { + did_set_host_name_ = true; + } + return res; + } + + Result SetVerifyOptionImpl(u32 option) { + ASSERT(!did_handshake_); + LOG_WARNING(Service_SSL, "(STUBBED) called. option={}", option); + return ResultSuccess; + } + + Result SetIOModeImpl(u32 _mode) { + auto mode = static_cast(_mode); + ASSERT(mode == IoMode::Blocking || mode == IoMode::NonBlocking); + ASSERT_OR_EXECUTE(socket_, { return ResultNoSocket; }); + + bool non_block = mode == IoMode::NonBlocking; + Network::Errno e = socket_->SetNonBlock(non_block); + if (e != Network::Errno::SUCCESS) { + LOG_ERROR(Service_SSL, "Failed to set native socket non-block flag to {}", non_block); + } + return ResultSuccess; + } + + Result SetSessionCacheModeImpl(u32 mode) { + ASSERT(!did_handshake_); + LOG_WARNING(Service_SSL, "(STUBBED) called. value={}", mode); + return ResultSuccess; + } + + Result DoHandshakeImpl() { + ASSERT_OR_EXECUTE(!did_handshake_ && socket_, { return ResultNoSocket; }); + ASSERT_OR_EXECUTE_MSG( + did_set_host_name_, { return ResultInternalError; }, + "Expected SetHostName before DoHandshake"); + Result res = backend_->DoHandshake(); + did_handshake_ = res.IsSuccess(); + return res; + } + + std::vector SerializeServerCerts(const std::vector>& certs) { + struct Header { + u64 magic; + u32 count; + u32 pad; + }; + struct EntryHeader { + u32 size; + u32 offset; + }; + if (!get_server_cert_chain_) { + // Just return the first one, unencoded. + ASSERT_OR_EXECUTE_MSG( + !certs.empty(), { return {}; }, "Should be at least one server cert"); + return certs[0]; + } + std::vector ret; + Header header{0x4E4D684374726543, static_cast(certs.size()), 0}; + ret.insert(ret.end(), reinterpret_cast(&header), reinterpret_cast(&header + 1)); + size_t data_offset = sizeof(Header) + certs.size() * sizeof(EntryHeader); + for (auto& cert : certs) { + EntryHeader entry_header{static_cast(cert.size()), static_cast(data_offset)}; + data_offset += cert.size(); + ret.insert(ret.end(), reinterpret_cast(&entry_header), + reinterpret_cast(&entry_header + 1)); + } + for (auto& cert : certs) { + ret.insert(ret.end(), cert.begin(), cert.end()); + } + return ret; + } + + ResultVal> ReadImpl(size_t size) { + ASSERT_OR_EXECUTE(did_handshake_, { return ResultInternalError; }); + std::vector res(size); + ResultVal actual = backend_->Read(res); + if (actual.Failed()) { + return actual.Code(); + } + res.resize(*actual); + return res; + } + + ResultVal WriteImpl(std::span data) { + ASSERT_OR_EXECUTE(did_handshake_, { return ResultInternalError; }); + return backend_->Write(data); + } + + ResultVal PendingImpl() { + LOG_WARNING(Service_SSL, "(STUBBED) called."); + return 0; + } + + void SetSocketDescriptor(HLERequestContext& ctx) { + IPC::RequestParser rp{ctx}; + const s32 fd = rp.Pop(); + const ResultVal res = SetSocketDescriptorImpl(fd); + IPC::ResponseBuilder rb{ctx, 3}; + rb.Push(res.Code()); + rb.Push(res.ValueOr(-1)); + } + + void SetHostName(HLERequestContext& ctx) { + const std::string hostname = Common::StringFromBuffer(ctx.ReadBuffer()); + const Result res = SetHostNameImpl(hostname); + IPC::ResponseBuilder rb{ctx, 2}; + rb.Push(res); + } + + void SetVerifyOption(HLERequestContext& ctx) { + IPC::RequestParser rp{ctx}; + const u32 option = rp.Pop(); + const Result res = SetVerifyOptionImpl(option); + IPC::ResponseBuilder rb{ctx, 2}; + rb.Push(res); + } + + void SetIoMode(HLERequestContext& ctx) { + IPC::RequestParser rp{ctx}; + const u32 mode = rp.Pop(); + const Result res = SetIOModeImpl(mode); + IPC::ResponseBuilder rb{ctx, 2}; + rb.Push(res); + } + + void DoHandshake(HLERequestContext& ctx) { + const Result res = DoHandshakeImpl(); + IPC::ResponseBuilder rb{ctx, 2}; + rb.Push(res); + } + + void DoHandshakeGetServerCert(HLERequestContext& ctx) { + Result res = DoHandshakeImpl(); + u32 certs_count = 0; + u32 certs_size = 0; + if (res == ResultSuccess) { + auto certs = backend_->GetServerCerts(); + if (certs.Succeeded()) { + std::vector certs_buf = SerializeServerCerts(*certs); + ctx.WriteBuffer(certs_buf); + certs_count = static_cast(certs->size()); + certs_size = static_cast(certs_buf.size()); + } + } + IPC::ResponseBuilder rb{ctx, 4}; + rb.Push(res); + rb.Push(certs_size); + rb.Push(certs_count); + } + + void Read(HLERequestContext& ctx) { + const ResultVal> res = ReadImpl(ctx.GetWriteBufferSize()); + IPC::ResponseBuilder rb{ctx, 3}; + rb.Push(res.Code()); + if (res.Succeeded()) { + rb.Push(static_cast(res->size())); + ctx.WriteBuffer(*res); + } else { + rb.Push(static_cast(0)); + } + } + + void Write(HLERequestContext& ctx) { + const ResultVal res = WriteImpl(ctx.ReadBuffer()); + IPC::ResponseBuilder rb{ctx, 3}; + rb.Push(res.Code()); + rb.Push(static_cast(res.ValueOr(0))); + } + + void Pending(HLERequestContext& ctx) { + const ResultVal res = PendingImpl(); + IPC::ResponseBuilder rb{ctx, 3}; + rb.Push(res.Code()); + rb.Push(res.ValueOr(0)); + } + + void SetSessionCacheMode(HLERequestContext& ctx) { + IPC::RequestParser rp{ctx}; + const u32 mode = rp.Pop(); + const Result res = SetSessionCacheModeImpl(mode); + IPC::ResponseBuilder rb{ctx, 2}; + rb.Push(res); + } + + void SetOption(HLERequestContext& ctx) { + struct Parameters { + OptionType option; + s32 value; + }; + static_assert(sizeof(Parameters) == 0x8, "Parameters is an invalid size"); + + IPC::RequestParser rp{ctx}; + const auto parameters = rp.PopRaw(); + + switch (parameters.option) { + case OptionType::DoNotCloseSocket: + do_not_close_socket_ = static_cast(parameters.value); + break; + case OptionType::GetServerCertChain: + get_server_cert_chain_ = static_cast(parameters.value); + break; + default: + LOG_WARNING(Service_SSL, "unrecognized option={}, value={}", parameters.option, + parameters.value); + } + + IPC::ResponseBuilder rb{ctx, 2}; + rb.Push(ResultSuccess); + } }; class ISslContext final : public ServiceFramework { public: explicit ISslContext(Core::System& system_, SslVersion version) - : ServiceFramework{system_, "ISslContext"}, ssl_version{version} { + : ServiceFramework{system_, "ISslContext"}, ssl_version{version}, + shared_data_{std::make_shared()} { static const FunctionInfo functions[] = { {0, &ISslContext::SetOption, "SetOption"}, {1, nullptr, "GetOption"}, {2, &ISslContext::CreateConnection, "CreateConnection"}, - {3, nullptr, "GetConnectionCount"}, + {3, &ISslContext::GetConnectionCount, "GetConnectionCount"}, {4, &ISslContext::ImportServerPki, "ImportServerPki"}, {5, &ISslContext::ImportClientPki, "ImportClientPki"}, {6, nullptr, "RemoveServerPki"}, @@ -111,6 +412,7 @@ public: private: SslVersion ssl_version; + std::shared_ptr shared_data_; void SetOption(HLERequestContext& ctx) { struct Parameters { @@ -130,11 +432,24 @@ private: } void CreateConnection(HLERequestContext& ctx) { - LOG_WARNING(Service_SSL, "(STUBBED) called"); + LOG_WARNING(Service_SSL, "called"); + + auto backend_res = CreateSSLConnectionBackend(); IPC::ResponseBuilder rb{ctx, 2, 0, 1}; + rb.Push(backend_res.Code()); + if (backend_res.Succeeded()) { + rb.PushIpcInterface(system, ssl_version, shared_data_, + std::move(*backend_res)); + } + } + + void GetConnectionCount(HLERequestContext& ctx) { + LOG_WARNING(Service_SSL, "connection_count={}", shared_data_->connection_count); + + IPC::ResponseBuilder rb{ctx, 3}; rb.Push(ResultSuccess); - rb.PushIpcInterface(system, ssl_version); + rb.Push(shared_data_->connection_count); } void ImportServerPki(HLERequestContext& ctx) { diff --git a/src/core/hle/service/ssl/ssl_backend.h b/src/core/hle/service/ssl/ssl_backend.h new file mode 100644 index 000000000..624e07d41 --- /dev/null +++ b/src/core/hle/service/ssl/ssl_backend.h @@ -0,0 +1,44 @@ +// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project +// SPDX-License-Identifier: GPL-2.0-or-later + +#pragma once + +#include "core/hle/result.h" + +#include "common/common_types.h" + +#include +#include +#include +#include + +namespace Network { +class SocketBase; +} + +namespace Service::SSL { + +constexpr Result ResultNoSocket{ErrorModule::SSLSrv, 103}; +constexpr Result ResultInvalidSocket{ErrorModule::SSLSrv, 106}; +constexpr Result ResultTimeout{ErrorModule::SSLSrv, 205}; +constexpr Result ResultInternalError{ErrorModule::SSLSrv, 999}; // made up + +constexpr Result ResultWouldBlock{ErrorModule::SSLSrv, 204}; +// ^ ResultWouldBlock is returned from Read and Write, and oddly, DoHandshake, +// with no way in the latter case to distinguish whether the client should poll +// for read or write. The one official client I've seen handles this by always +// polling for read (with a timeout). + +class SSLConnectionBackend { +public: + virtual void SetSocket(std::shared_ptr socket) = 0; + virtual Result SetHostName(const std::string& hostname) = 0; + virtual Result DoHandshake() = 0; + virtual ResultVal Read(std::span data) = 0; + virtual ResultVal Write(std::span data) = 0; + virtual ResultVal>> GetServerCerts() = 0; +}; + +ResultVal> CreateSSLConnectionBackend(); + +} // namespace Service::SSL diff --git a/src/core/hle/service/ssl/ssl_backend_none.cpp b/src/core/hle/service/ssl/ssl_backend_none.cpp new file mode 100644 index 000000000..eb01561e2 --- /dev/null +++ b/src/core/hle/service/ssl/ssl_backend_none.cpp @@ -0,0 +1,15 @@ +// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project +// SPDX-License-Identifier: GPL-2.0-or-later + +#include "core/hle/service/ssl/ssl_backend.h" + +#include "common/logging/log.h" + +namespace Service::SSL { + +ResultVal> CreateSSLConnectionBackend() { + LOG_ERROR(Service_SSL, "No SSL backend on this platform"); + return ResultInternalError; +} + +} // namespace Service::SSL diff --git a/src/core/hle/service/ssl/ssl_backend_openssl.cpp b/src/core/hle/service/ssl/ssl_backend_openssl.cpp new file mode 100644 index 000000000..cf9b904ac --- /dev/null +++ b/src/core/hle/service/ssl/ssl_backend_openssl.cpp @@ -0,0 +1,342 @@ +// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project +// SPDX-License-Identifier: GPL-2.0-or-later + +#include "core/hle/service/ssl/ssl_backend.h" +#include "core/internal_network/network.h" +#include "core/internal_network/sockets.h" + +#include "common/fs/file.h" +#include "common/hex_util.h" +#include "common/string_util.h" + +#include + +#include +#include +#include +#include + +using namespace Common::FS; + +namespace Service::SSL { + +// Import OpenSSL's `SSL` type into the namespace. This is needed because the +// namespace is also named `SSL`. +using ::SSL; + +namespace { + +std::once_flag one_time_init_flag; +bool one_time_init_success = false; + +SSL_CTX* ssl_ctx; +IOFile key_log_file; // only open if SSLKEYLOGFILE set in environment +BIO_METHOD* bio_meth; + +Result CheckOpenSSLErrors(); +void OneTimeInit(); +void OneTimeInitLogFile(); +bool OneTimeInitBIO(); + +} // namespace + +class SSLConnectionBackendOpenSSL final : public SSLConnectionBackend { +public: + Result Init() { + std::call_once(one_time_init_flag, OneTimeInit); + + if (!one_time_init_success) { + LOG_ERROR(Service_SSL, + "Can't create SSL connection because OpenSSL one-time initialization failed"); + return ResultInternalError; + } + + ssl_ = SSL_new(ssl_ctx); + if (!ssl_) { + LOG_ERROR(Service_SSL, "SSL_new failed"); + return CheckOpenSSLErrors(); + } + + SSL_set_connect_state(ssl_); + + bio_ = BIO_new(bio_meth); + if (!bio_) { + LOG_ERROR(Service_SSL, "BIO_new failed"); + return CheckOpenSSLErrors(); + } + + BIO_set_data(bio_, this); + BIO_set_init(bio_, 1); + SSL_set_bio(ssl_, bio_, bio_); + + return ResultSuccess; + } + + void SetSocket(std::shared_ptr socket) override { + socket_ = socket; + } + + Result SetHostName(const std::string& hostname) override { + if (!SSL_set1_host(ssl_, hostname.c_str())) { // hostname for verification + LOG_ERROR(Service_SSL, "SSL_set1_host({}) failed", hostname); + return CheckOpenSSLErrors(); + } + if (!SSL_set_tlsext_host_name(ssl_, hostname.c_str())) { // hostname for SNI + LOG_ERROR(Service_SSL, "SSL_set_tlsext_host_name({}) failed", hostname); + return CheckOpenSSLErrors(); + } + return ResultSuccess; + } + + Result DoHandshake() override { + SSL_set_verify_result(ssl_, X509_V_OK); + int ret = SSL_do_handshake(ssl_); + long verify_result = SSL_get_verify_result(ssl_); + if (verify_result != X509_V_OK) { + LOG_ERROR(Service_SSL, "SSL cert verification failed because: {}", + X509_verify_cert_error_string(verify_result)); + return CheckOpenSSLErrors(); + } + if (ret <= 0) { + int ssl_err = SSL_get_error(ssl_, ret); + if (ssl_err == SSL_ERROR_ZERO_RETURN || + (ssl_err == SSL_ERROR_SYSCALL && got_read_eof_)) { + LOG_ERROR(Service_SSL, "SSL handshake failed because server hung up"); + return ResultInternalError; + } + } + return HandleReturn("SSL_do_handshake", 0, ret).Code(); + } + + ResultVal Read(std::span data) override { + size_t actual; + int ret = SSL_read_ex(ssl_, data.data(), data.size(), &actual); + return HandleReturn("SSL_read_ex", actual, ret); + } + + ResultVal Write(std::span data) override { + size_t actual; + int ret = SSL_write_ex(ssl_, data.data(), data.size(), &actual); + return HandleReturn("SSL_write_ex", actual, ret); + } + + ResultVal HandleReturn(const char* what, size_t actual, int ret) { + int ssl_err = SSL_get_error(ssl_, ret); + CheckOpenSSLErrors(); + switch (ssl_err) { + case SSL_ERROR_NONE: + return actual; + case SSL_ERROR_ZERO_RETURN: + LOG_DEBUG(Service_SSL, "{} => SSL_ERROR_ZERO_RETURN", what); + // DoHandshake special-cases this, but for Read and Write: + return size_t(0); + case SSL_ERROR_WANT_READ: + LOG_DEBUG(Service_SSL, "{} => SSL_ERROR_WANT_READ", what); + return ResultWouldBlock; + case SSL_ERROR_WANT_WRITE: + LOG_DEBUG(Service_SSL, "{} => SSL_ERROR_WANT_WRITE", what); + return ResultWouldBlock; + default: + if (ssl_err == SSL_ERROR_SYSCALL && got_read_eof_) { + LOG_DEBUG(Service_SSL, "{} => SSL_ERROR_SYSCALL because server hung up", what); + return size_t(0); + } + LOG_ERROR(Service_SSL, "{} => other SSL_get_error return value {}", what, ssl_err); + return ResultInternalError; + } + } + + ResultVal>> GetServerCerts() override { + STACK_OF(X509)* chain = SSL_get_peer_cert_chain(ssl_); + if (!chain) { + LOG_ERROR(Service_SSL, "SSL_get_peer_cert_chain returned nullptr"); + return ResultInternalError; + } + std::vector> ret; + int count = sk_X509_num(chain); + ASSERT(count >= 0); + for (int i = 0; i < count; i++) { + X509* x509 = sk_X509_value(chain, i); + ASSERT_OR_EXECUTE(x509 != nullptr, { continue; }); + unsigned char* buf = nullptr; + int len = i2d_X509(x509, &buf); + ASSERT_OR_EXECUTE(len >= 0 && buf, { continue; }); + ret.emplace_back(buf, buf + len); + OPENSSL_free(buf); + } + return ret; + } + + ~SSLConnectionBackendOpenSSL() { + // these are null-tolerant: + SSL_free(ssl_); + BIO_free(bio_); + } + + static void KeyLogCallback(const SSL* ssl, const char* line) { + std::string str(line); + str.push_back('\n'); + // Do this in a single WriteString for atomicity if multiple instances + // are running on different threads (though that can't currently + // happen). + if (key_log_file.WriteString(str) != str.size() || !key_log_file.Flush()) { + LOG_CRITICAL(Service_SSL, "Failed to write to SSLKEYLOGFILE"); + } + LOG_DEBUG(Service_SSL, "Wrote to SSLKEYLOGFILE: {}", line); + } + + static int WriteCallback(BIO* bio, const char* buf, size_t len, size_t* actual_p) { + auto self = static_cast(BIO_get_data(bio)); + ASSERT_OR_EXECUTE_MSG( + self->socket_, { return 0; }, "OpenSSL asked to send but we have no socket"); + BIO_clear_retry_flags(bio); + auto [actual, err] = self->socket_->Send({reinterpret_cast(buf), len}, 0); + switch (err) { + case Network::Errno::SUCCESS: + *actual_p = actual; + return 1; + case Network::Errno::AGAIN: + BIO_set_flags(bio, BIO_FLAGS_WRITE | BIO_FLAGS_SHOULD_RETRY); + return 0; + default: + LOG_ERROR(Service_SSL, "Socket send returned Network::Errno {}", err); + return -1; + } + } + + static int ReadCallback(BIO* bio, char* buf, size_t len, size_t* actual_p) { + auto self = static_cast(BIO_get_data(bio)); + ASSERT_OR_EXECUTE_MSG( + self->socket_, { return 0; }, "OpenSSL asked to recv but we have no socket"); + BIO_clear_retry_flags(bio); + auto [actual, err] = self->socket_->Recv(0, {reinterpret_cast(buf), len}); + switch (err) { + case Network::Errno::SUCCESS: + *actual_p = actual; + if (actual == 0) { + self->got_read_eof_ = true; + } + return actual ? 1 : 0; + case Network::Errno::AGAIN: + BIO_set_flags(bio, BIO_FLAGS_READ | BIO_FLAGS_SHOULD_RETRY); + return 0; + default: + LOG_ERROR(Service_SSL, "Socket recv returned Network::Errno {}", err); + return -1; + } + } + + static long CtrlCallback(BIO* bio, int cmd, long larg, void* parg) { + switch (cmd) { + case BIO_CTRL_FLUSH: + // Nothing to flush. + return 1; + case BIO_CTRL_PUSH: + case BIO_CTRL_POP: + case BIO_CTRL_GET_KTLS_SEND: + case BIO_CTRL_GET_KTLS_RECV: + // We don't support these operations, but don't bother logging them + // as they're nothing unusual. + return 0; + default: + LOG_DEBUG(Service_SSL, "OpenSSL BIO got ctrl({}, {}, {})", cmd, larg, parg); + return 0; + } + } + + SSL* ssl_ = nullptr; + BIO* bio_ = nullptr; + bool got_read_eof_ = false; + + std::shared_ptr socket_; +}; + +ResultVal> CreateSSLConnectionBackend() { + auto conn = std::make_unique(); + Result res = conn->Init(); + if (res.IsFailure()) { + return res; + } + return conn; +} + +namespace { + +Result CheckOpenSSLErrors() { + unsigned long rc; + const char* file; + int line; + const char* func; + const char* data; + int flags; + while ((rc = ERR_get_error_all(&file, &line, &func, &data, &flags))) { + std::string msg; + msg.resize(1024, '\0'); + ERR_error_string_n(rc, msg.data(), msg.size()); + msg.resize(strlen(msg.data()), '\0'); + if (flags & ERR_TXT_STRING) { + msg.append(" | "); + msg.append(data); + } + Common::Log::FmtLogMessage(Common::Log::Class::Service_SSL, Common::Log::Level::Error, + Common::Log::TrimSourcePath(file), line, func, "OpenSSL: {}", + msg); + } + return ResultInternalError; +} + +void OneTimeInit() { + ssl_ctx = SSL_CTX_new(TLS_client_method()); + if (!ssl_ctx) { + LOG_ERROR(Service_SSL, "SSL_CTX_new failed"); + CheckOpenSSLErrors(); + return; + } + + SSL_CTX_set_verify(ssl_ctx, SSL_VERIFY_PEER, nullptr); + + if (!SSL_CTX_set_default_verify_paths(ssl_ctx)) { + LOG_ERROR(Service_SSL, "SSL_CTX_set_default_verify_paths failed"); + CheckOpenSSLErrors(); + return; + } + + OneTimeInitLogFile(); + + if (!OneTimeInitBIO()) { + return; + } + + one_time_init_success = true; +} + +void OneTimeInitLogFile() { + const char* logfile = getenv("SSLKEYLOGFILE"); + if (logfile) { + key_log_file.Open(logfile, FileAccessMode::Append, FileType::TextFile, + FileShareFlag::ShareWriteOnly); + if (key_log_file.IsOpen()) { + SSL_CTX_set_keylog_callback(ssl_ctx, &SSLConnectionBackendOpenSSL::KeyLogCallback); + } else { + LOG_CRITICAL(Service_SSL, + "SSLKEYLOGFILE was set but file could not be opened; not logging keys!"); + } + } +} + +bool OneTimeInitBIO() { + bio_meth = + BIO_meth_new(BIO_get_new_index() | BIO_TYPE_SOURCE_SINK, "SSLConnectionBackendOpenSSL"); + if (!bio_meth || + !BIO_meth_set_write_ex(bio_meth, &SSLConnectionBackendOpenSSL::WriteCallback) || + !BIO_meth_set_read_ex(bio_meth, &SSLConnectionBackendOpenSSL::ReadCallback) || + !BIO_meth_set_ctrl(bio_meth, &SSLConnectionBackendOpenSSL::CtrlCallback)) { + LOG_ERROR(Service_SSL, "Failed to create BIO_METHOD"); + return false; + } + return true; +} + +} // namespace + +} // namespace Service::SSL diff --git a/src/core/hle/service/ssl/ssl_backend_schannel.cpp b/src/core/hle/service/ssl/ssl_backend_schannel.cpp new file mode 100644 index 000000000..0a326b536 --- /dev/null +++ b/src/core/hle/service/ssl/ssl_backend_schannel.cpp @@ -0,0 +1,529 @@ +// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project +// SPDX-License-Identifier: GPL-2.0-or-later + +#include "core/hle/service/ssl/ssl_backend.h" +#include "core/internal_network/network.h" +#include "core/internal_network/sockets.h" + +#include "common/error.h" +#include "common/fs/file.h" +#include "common/hex_util.h" +#include "common/string_util.h" + +#include + +#define SECURITY_WIN32 +#include +#include + +namespace { + +std::once_flag one_time_init_flag; +bool one_time_init_success = false; + +SCHANNEL_CRED schannel_cred{ + .dwVersion = SCHANNEL_CRED_VERSION, + .dwFlags = SCH_USE_STRONG_CRYPTO | // don't allow insecure protocols + SCH_CRED_AUTO_CRED_VALIDATION | // validate certs + SCH_CRED_NO_DEFAULT_CREDS, // don't automatically present a client certificate + // ^ I'm assuming that nobody would want to connect Yuzu to a + // service that requires some OS-provided corporate client + // certificate, and presenting one to some arbitrary server + // might be a privacy concern? Who knows, though. +}; + +CredHandle cred_handle; + +static void OneTimeInit() { + SECURITY_STATUS ret = + AcquireCredentialsHandle(nullptr, const_cast(UNISP_NAME), SECPKG_CRED_OUTBOUND, + nullptr, &schannel_cred, nullptr, nullptr, &cred_handle, nullptr); + if (ret != SEC_E_OK) { + // SECURITY_STATUS codes are a type of HRESULT and can be used with NativeErrorToString. + LOG_ERROR(Service_SSL, "AcquireCredentialsHandle failed: {}", + Common::NativeErrorToString(ret)); + return; + } + + one_time_init_success = true; +} + +} // namespace + +namespace Service::SSL { + +class SSLConnectionBackendSchannel final : public SSLConnectionBackend { +public: + Result Init() { + std::call_once(one_time_init_flag, OneTimeInit); + + if (!one_time_init_success) { + LOG_ERROR( + Service_SSL, + "Can't create SSL connection because Schannel one-time initialization failed"); + return ResultInternalError; + } + + return ResultSuccess; + } + + void SetSocket(std::shared_ptr socket) override { + socket_ = socket; + } + + Result SetHostName(const std::string& hostname) override { + hostname_ = hostname; + return ResultSuccess; + } + + Result DoHandshake() override { + while (1) { + Result r; + switch (handshake_state_) { + case HandshakeState::Initial: + if ((r = FlushCiphertextWriteBuf()) != ResultSuccess || + (r = CallInitializeSecurityContext()) != ResultSuccess) { + return r; + } + // CallInitializeSecurityContext updated `handshake_state_`. + continue; + case HandshakeState::ContinueNeeded: + case HandshakeState::IncompleteMessage: + if ((r = FlushCiphertextWriteBuf()) != ResultSuccess || + (r = FillCiphertextReadBuf()) != ResultSuccess) { + return r; + } + if (ciphertext_read_buf_.empty()) { + LOG_ERROR(Service_SSL, "SSL handshake failed because server hung up"); + return ResultInternalError; + } + if ((r = CallInitializeSecurityContext()) != ResultSuccess) { + return r; + } + // CallInitializeSecurityContext updated `handshake_state_`. + continue; + case HandshakeState::DoneAfterFlush: + if ((r = FlushCiphertextWriteBuf()) != ResultSuccess) { + return r; + } + handshake_state_ = HandshakeState::Connected; + return ResultSuccess; + case HandshakeState::Connected: + LOG_ERROR(Service_SSL, "Called DoHandshake but we already handshook"); + return ResultInternalError; + case HandshakeState::Error: + return ResultInternalError; + } + } + } + + Result FillCiphertextReadBuf() { + size_t fill_size = read_buf_fill_size_ ? read_buf_fill_size_ : 4096; + read_buf_fill_size_ = 0; + // This unnecessarily zeroes the buffer; oh well. + size_t offset = ciphertext_read_buf_.size(); + ASSERT_OR_EXECUTE(offset + fill_size >= offset, { return ResultInternalError; }); + ciphertext_read_buf_.resize(offset + fill_size, 0); + auto read_span = std::span(ciphertext_read_buf_).subspan(offset, fill_size); + auto [actual, err] = socket_->Recv(0, read_span); + switch (err) { + case Network::Errno::SUCCESS: + ASSERT(static_cast(actual) <= fill_size); + ciphertext_read_buf_.resize(offset + actual); + return ResultSuccess; + case Network::Errno::AGAIN: + ciphertext_read_buf_.resize(offset); + return ResultWouldBlock; + default: + ciphertext_read_buf_.resize(offset); + LOG_ERROR(Service_SSL, "Socket recv returned Network::Errno {}", err); + return ResultInternalError; + } + } + + // Returns success if the write buffer has been completely emptied. + Result FlushCiphertextWriteBuf() { + while (!ciphertext_write_buf_.empty()) { + auto [actual, err] = socket_->Send(ciphertext_write_buf_, 0); + switch (err) { + case Network::Errno::SUCCESS: + ASSERT(static_cast(actual) <= ciphertext_write_buf_.size()); + ciphertext_write_buf_.erase(ciphertext_write_buf_.begin(), + ciphertext_write_buf_.begin() + actual); + break; + case Network::Errno::AGAIN: + return ResultWouldBlock; + default: + LOG_ERROR(Service_SSL, "Socket send returned Network::Errno {}", err); + return ResultInternalError; + } + } + return ResultSuccess; + } + + Result CallInitializeSecurityContext() { + unsigned long req = ISC_REQ_ALLOCATE_MEMORY | ISC_REQ_CONFIDENTIALITY | ISC_REQ_INTEGRITY | + ISC_REQ_REPLAY_DETECT | ISC_REQ_SEQUENCE_DETECT | ISC_REQ_STREAM | + ISC_REQ_USE_SUPPLIED_CREDS; + unsigned long attr; + // https://learn.microsoft.com/en-us/windows/win32/secauthn/initializesecuritycontext--schannel + std::array input_buffers{{ + // only used if `initial_call_done` + { + // [0] + .cbBuffer = static_cast(ciphertext_read_buf_.size()), + .BufferType = SECBUFFER_TOKEN, + .pvBuffer = ciphertext_read_buf_.data(), + }, + { + // [1] (will be replaced by SECBUFFER_MISSING when SEC_E_INCOMPLETE_MESSAGE is + // returned, or SECBUFFER_EXTRA when SEC_E_CONTINUE_NEEDED is returned if the + // whole buffer wasn't used) + .BufferType = SECBUFFER_EMPTY, + }, + }}; + std::array output_buffers{{ + { + .BufferType = SECBUFFER_TOKEN, + }, // [0] + { + .BufferType = SECBUFFER_ALERT, + }, // [1] + }}; + SecBufferDesc input_desc{ + .ulVersion = SECBUFFER_VERSION, + .cBuffers = static_cast(input_buffers.size()), + .pBuffers = input_buffers.data(), + }; + SecBufferDesc output_desc{ + .ulVersion = SECBUFFER_VERSION, + .cBuffers = static_cast(output_buffers.size()), + .pBuffers = output_buffers.data(), + }; + ASSERT_OR_EXECUTE_MSG( + input_buffers[0].cbBuffer == ciphertext_read_buf_.size(), + { return ResultInternalError; }, "read buffer too large"); + + bool initial_call_done = handshake_state_ != HandshakeState::Initial; + if (initial_call_done) { + LOG_DEBUG(Service_SSL, "Passing {} bytes into InitializeSecurityContext", + ciphertext_read_buf_.size()); + } + + SECURITY_STATUS ret = + InitializeSecurityContextA(&cred_handle, initial_call_done ? &ctxt_ : nullptr, + // Caller ensured we have set a hostname: + const_cast(hostname_.value().c_str()), req, + 0, // Reserved1 + 0, // TargetDataRep not used with Schannel + initial_call_done ? &input_desc : nullptr, + 0, // Reserved2 + initial_call_done ? nullptr : &ctxt_, &output_desc, &attr, + nullptr); // ptsExpiry + + if (output_buffers[0].pvBuffer) { + std::span span(static_cast(output_buffers[0].pvBuffer), + output_buffers[0].cbBuffer); + ciphertext_write_buf_.insert(ciphertext_write_buf_.end(), span.begin(), span.end()); + FreeContextBuffer(output_buffers[0].pvBuffer); + } + + if (output_buffers[1].pvBuffer) { + std::span span(static_cast(output_buffers[1].pvBuffer), + output_buffers[1].cbBuffer); + // The documentation doesn't explain what format this data is in. + LOG_DEBUG(Service_SSL, "Got a {}-byte alert buffer: {}", span.size(), + Common::HexToString(span)); + } + + switch (ret) { + case SEC_I_CONTINUE_NEEDED: + LOG_DEBUG(Service_SSL, "InitializeSecurityContext => SEC_I_CONTINUE_NEEDED"); + if (input_buffers[1].BufferType == SECBUFFER_EXTRA) { + LOG_DEBUG(Service_SSL, "EXTRA of size {}", input_buffers[1].cbBuffer); + ASSERT(input_buffers[1].cbBuffer <= ciphertext_read_buf_.size()); + ciphertext_read_buf_.erase(ciphertext_read_buf_.begin(), + ciphertext_read_buf_.end() - input_buffers[1].cbBuffer); + } else { + ASSERT(input_buffers[1].BufferType == SECBUFFER_EMPTY); + ciphertext_read_buf_.clear(); + } + handshake_state_ = HandshakeState::ContinueNeeded; + return ResultSuccess; + case SEC_E_INCOMPLETE_MESSAGE: + LOG_DEBUG(Service_SSL, "InitializeSecurityContext => SEC_E_INCOMPLETE_MESSAGE"); + ASSERT(input_buffers[1].BufferType == SECBUFFER_MISSING); + read_buf_fill_size_ = input_buffers[1].cbBuffer; + handshake_state_ = HandshakeState::IncompleteMessage; + return ResultSuccess; + case SEC_E_OK: + LOG_DEBUG(Service_SSL, "InitializeSecurityContext => SEC_E_OK"); + ciphertext_read_buf_.clear(); + handshake_state_ = HandshakeState::DoneAfterFlush; + return GrabStreamSizes(); + default: + LOG_ERROR(Service_SSL, + "InitializeSecurityContext failed (probably certificate/protocol issue): {}", + Common::NativeErrorToString(ret)); + handshake_state_ = HandshakeState::Error; + return ResultInternalError; + } + } + + Result GrabStreamSizes() { + SECURITY_STATUS ret = + QueryContextAttributes(&ctxt_, SECPKG_ATTR_STREAM_SIZES, &stream_sizes_); + if (ret != SEC_E_OK) { + LOG_ERROR(Service_SSL, "QueryContextAttributes(SECPKG_ATTR_STREAM_SIZES) failed: {}", + Common::NativeErrorToString(ret)); + handshake_state_ = HandshakeState::Error; + return ResultInternalError; + } + return ResultSuccess; + } + + ResultVal Read(std::span data) override { + if (handshake_state_ != HandshakeState::Connected) { + LOG_ERROR(Service_SSL, "Called Read but we did not successfully handshake"); + return ResultInternalError; + } + if (data.size() == 0 || got_read_eof_) { + return size_t(0); + } + while (1) { + if (!cleartext_read_buf_.empty()) { + size_t read_size = std::min(cleartext_read_buf_.size(), data.size()); + std::memcpy(data.data(), cleartext_read_buf_.data(), read_size); + cleartext_read_buf_.erase(cleartext_read_buf_.begin(), + cleartext_read_buf_.begin() + read_size); + return read_size; + } + if (!ciphertext_read_buf_.empty()) { + std::array buffers{{ + { + .cbBuffer = static_cast(ciphertext_read_buf_.size()), + .BufferType = SECBUFFER_DATA, + .pvBuffer = ciphertext_read_buf_.data(), + }, + { + .BufferType = SECBUFFER_EMPTY, + }, + { + .BufferType = SECBUFFER_EMPTY, + }, + { + .BufferType = SECBUFFER_EMPTY, + }, + }}; + ASSERT_OR_EXECUTE_MSG( + buffers[0].cbBuffer == ciphertext_read_buf_.size(), + { return ResultInternalError; }, "read buffer too large"); + SecBufferDesc desc{ + .ulVersion = SECBUFFER_VERSION, + .cBuffers = static_cast(buffers.size()), + .pBuffers = buffers.data(), + }; + SECURITY_STATUS ret = + DecryptMessage(&ctxt_, &desc, /*MessageSeqNo*/ 0, /*pfQOP*/ nullptr); + switch (ret) { + case SEC_E_OK: + ASSERT_OR_EXECUTE(buffers[0].BufferType == SECBUFFER_STREAM_HEADER, + { return ResultInternalError; }); + ASSERT_OR_EXECUTE(buffers[1].BufferType == SECBUFFER_DATA, + { return ResultInternalError; }); + ASSERT_OR_EXECUTE(buffers[2].BufferType == SECBUFFER_STREAM_TRAILER, + { return ResultInternalError; }); + cleartext_read_buf_.assign(static_cast(buffers[1].pvBuffer), + static_cast(buffers[1].pvBuffer) + + buffers[1].cbBuffer); + if (buffers[3].BufferType == SECBUFFER_EXTRA) { + ASSERT(buffers[3].cbBuffer <= ciphertext_read_buf_.size()); + ciphertext_read_buf_.erase(ciphertext_read_buf_.begin(), + ciphertext_read_buf_.end() - + buffers[3].cbBuffer); + } else { + ASSERT(buffers[3].BufferType == SECBUFFER_EMPTY); + ciphertext_read_buf_.clear(); + } + continue; + case SEC_E_INCOMPLETE_MESSAGE: + break; + case SEC_I_CONTEXT_EXPIRED: + // Server hung up by sending close_notify. + got_read_eof_ = true; + return size_t(0); + default: + LOG_ERROR(Service_SSL, "DecryptMessage failed: {}", + Common::NativeErrorToString(ret)); + return ResultInternalError; + } + } + Result r = FillCiphertextReadBuf(); + if (r != ResultSuccess) { + return r; + } + if (ciphertext_read_buf_.empty()) { + got_read_eof_ = true; + return size_t(0); + } + } + } + + ResultVal Write(std::span data) override { + if (handshake_state_ != HandshakeState::Connected) { + LOG_ERROR(Service_SSL, "Called Write but we did not successfully handshake"); + return ResultInternalError; + } + if (data.size() == 0) { + return size_t(0); + } + data = data.subspan(0, std::min(data.size(), stream_sizes_.cbMaximumMessage)); + if (!cleartext_write_buf_.empty()) { + // Already in the middle of a write. It wouldn't make sense to not + // finish sending the entire buffer since TLS has + // header/MAC/padding/etc. + if (data.size() != cleartext_write_buf_.size() || + std::memcmp(data.data(), cleartext_write_buf_.data(), data.size())) { + LOG_ERROR(Service_SSL, "Called Write but buffer does not match previous buffer"); + return ResultInternalError; + } + return WriteAlreadyEncryptedData(); + } else { + cleartext_write_buf_.assign(data.begin(), data.end()); + } + + std::vector header_buf(stream_sizes_.cbHeader, 0); + std::vector tmp_data_buf = cleartext_write_buf_; + std::vector trailer_buf(stream_sizes_.cbTrailer, 0); + + std::array buffers{{ + { + .cbBuffer = stream_sizes_.cbHeader, + .BufferType = SECBUFFER_STREAM_HEADER, + .pvBuffer = header_buf.data(), + }, + { + .cbBuffer = static_cast(tmp_data_buf.size()), + .BufferType = SECBUFFER_DATA, + .pvBuffer = tmp_data_buf.data(), + }, + { + .cbBuffer = stream_sizes_.cbTrailer, + .BufferType = SECBUFFER_STREAM_TRAILER, + .pvBuffer = trailer_buf.data(), + }, + }}; + ASSERT_OR_EXECUTE_MSG( + buffers[1].cbBuffer == tmp_data_buf.size(), { return ResultInternalError; }, + "temp buffer too large"); + SecBufferDesc desc{ + .ulVersion = SECBUFFER_VERSION, + .cBuffers = static_cast(buffers.size()), + .pBuffers = buffers.data(), + }; + + SECURITY_STATUS ret = EncryptMessage(&ctxt_, /*fQOP*/ 0, &desc, /*MessageSeqNo*/ 0); + if (ret != SEC_E_OK) { + LOG_ERROR(Service_SSL, "EncryptMessage failed: {}", Common::NativeErrorToString(ret)); + return ResultInternalError; + } + ciphertext_write_buf_.insert(ciphertext_write_buf_.end(), header_buf.begin(), + header_buf.end()); + ciphertext_write_buf_.insert(ciphertext_write_buf_.end(), tmp_data_buf.begin(), + tmp_data_buf.end()); + ciphertext_write_buf_.insert(ciphertext_write_buf_.end(), trailer_buf.begin(), + trailer_buf.end()); + return WriteAlreadyEncryptedData(); + } + + ResultVal WriteAlreadyEncryptedData() { + Result r = FlushCiphertextWriteBuf(); + if (r != ResultSuccess) { + return r; + } + // write buf is empty + size_t cleartext_bytes_written = cleartext_write_buf_.size(); + cleartext_write_buf_.clear(); + return cleartext_bytes_written; + } + + ResultVal>> GetServerCerts() override { + PCCERT_CONTEXT returned_cert = nullptr; + SECURITY_STATUS ret = + QueryContextAttributes(&ctxt_, SECPKG_ATTR_REMOTE_CERT_CONTEXT, &returned_cert); + if (ret != SEC_E_OK) { + LOG_ERROR(Service_SSL, + "QueryContextAttributes(SECPKG_ATTR_REMOTE_CERT_CONTEXT) failed: {}", + Common::NativeErrorToString(ret)); + return ResultInternalError; + } + PCCERT_CONTEXT some_cert = nullptr; + std::vector> certs; + while ((some_cert = CertEnumCertificatesInStore(returned_cert->hCertStore, some_cert))) { + certs.emplace_back(static_cast(some_cert->pbCertEncoded), + static_cast(some_cert->pbCertEncoded) + + some_cert->cbCertEncoded); + } + std::reverse(certs.begin(), + certs.end()); // Windows returns certs in reverse order from what we want + CertFreeCertificateContext(returned_cert); + return certs; + } + + ~SSLConnectionBackendSchannel() { + if (handshake_state_ != HandshakeState::Initial) { + DeleteSecurityContext(&ctxt_); + } + } + + enum class HandshakeState { + // Haven't called anything yet. + Initial, + // `SEC_I_CONTINUE_NEEDED` was returned by + // `InitializeSecurityContext`; must finish sending data (if any) in + // the write buffer, then read at least one byte before calling + // `InitializeSecurityContext` again. + ContinueNeeded, + // `SEC_E_INCOMPLETE_MESSAGE` was returned by + // `InitializeSecurityContext`; hopefully the write buffer is empty; + // must read at least one byte before calling + // `InitializeSecurityContext` again. + IncompleteMessage, + // `SEC_E_OK` was returned by `InitializeSecurityContext`; must + // finish sending data in the write buffer before having `DoHandshake` + // report success. + DoneAfterFlush, + // We finished the above and are now connected. At this point, writing + // and reading are separate 'state machines' represented by the + // nonemptiness of the ciphertext and cleartext read and write buffers. + Connected, + // Another error was returned and we shouldn't allow initialization + // to continue. + Error, + } handshake_state_ = HandshakeState::Initial; + + CtxtHandle ctxt_; + SecPkgContext_StreamSizes stream_sizes_; + + std::shared_ptr socket_; + std::optional hostname_; + + std::vector ciphertext_read_buf_; + std::vector ciphertext_write_buf_; + std::vector cleartext_read_buf_; + std::vector cleartext_write_buf_; + + bool got_read_eof_ = false; + size_t read_buf_fill_size_ = 0; +}; + +ResultVal> CreateSSLConnectionBackend() { + auto conn = std::make_unique(); + Result res = conn->Init(); + if (res.IsFailure()) { + return res; + } + return conn; +} + +} // namespace Service::SSL diff --git a/src/core/internal_network/network.cpp b/src/core/internal_network/network.cpp index 75ac10a9c..39381e06e 100644 --- a/src/core/internal_network/network.cpp +++ b/src/core/internal_network/network.cpp @@ -121,6 +121,8 @@ Errno TranslateNativeError(int e) { return Errno::MSGSIZE; case WSAETIMEDOUT: return Errno::TIMEDOUT; + case WSAEINPROGRESS: + return Errno::INPROGRESS; default: UNIMPLEMENTED_MSG("Unimplemented errno={}", e); return Errno::OTHER; @@ -195,6 +197,8 @@ bool EnableNonBlock(int fd, bool enable) { Errno TranslateNativeError(int e) { switch (e) { + case 0: + return Errno::SUCCESS; case EBADF: return Errno::BADF; case EINVAL: @@ -219,8 +223,10 @@ Errno TranslateNativeError(int e) { return Errno::MSGSIZE; case ETIMEDOUT: return Errno::TIMEDOUT; + case EINPROGRESS: + return Errno::INPROGRESS; default: - UNIMPLEMENTED_MSG("Unimplemented errno={}", e); + UNIMPLEMENTED_MSG("Unimplemented errno={} ({})", e, strerror(e)); return Errno::OTHER; } } @@ -234,15 +240,84 @@ Errno GetAndLogLastError() { int e = errno; #endif const Errno err = TranslateNativeError(e); - if (err == Errno::AGAIN || err == Errno::TIMEDOUT) { + if (err == Errno::AGAIN || err == Errno::TIMEDOUT || err == Errno::INPROGRESS) { + // These happen during normal operation, so only log them at debug level. + LOG_DEBUG(Network, "Socket operation error: {}", Common::NativeErrorToString(e)); return err; } LOG_ERROR(Network, "Socket operation error: {}", Common::NativeErrorToString(e)); return err; } -int TranslateDomain(Domain domain) { +GetAddrInfoError TranslateGetAddrInfoErrorFromNative(int gai_err) { + switch (gai_err) { + case 0: + return GetAddrInfoError::SUCCESS; +#ifdef EAI_ADDRFAMILY + case EAI_ADDRFAMILY: + return GetAddrInfoError::ADDRFAMILY; +#endif + case EAI_AGAIN: + return GetAddrInfoError::AGAIN; + case EAI_BADFLAGS: + return GetAddrInfoError::BADFLAGS; + case EAI_FAIL: + return GetAddrInfoError::FAIL; + case EAI_FAMILY: + return GetAddrInfoError::FAMILY; + case EAI_MEMORY: + return GetAddrInfoError::MEMORY; + case EAI_NONAME: + return GetAddrInfoError::NONAME; + case EAI_SERVICE: + return GetAddrInfoError::SERVICE; + case EAI_SOCKTYPE: + return GetAddrInfoError::SOCKTYPE; + // These codes may not be defined on all systems: +#ifdef EAI_SYSTEM + case EAI_SYSTEM: + return GetAddrInfoError::SYSTEM; +#endif +#ifdef EAI_BADHINTS + case EAI_BADHINTS: + return GetAddrInfoError::BADHINTS; +#endif +#ifdef EAI_PROTOCOL + case EAI_PROTOCOL: + return GetAddrInfoError::PROTOCOL; +#endif +#ifdef EAI_OVERFLOW + case EAI_OVERFLOW: + return GetAddrInfoError::OVERFLOW_; +#endif + default: +#ifdef EAI_NODATA + // This can't be a case statement because it would create a duplicate + // case on Windows where EAI_NODATA is an alias for EAI_NONAME. + if (gai_err == EAI_NODATA) { + return GetAddrInfoError::NODATA; + } +#endif + return GetAddrInfoError::OTHER; + } +} + +Domain TranslateDomainFromNative(int domain) { switch (domain) { + case 0: + return Domain::Unspecified; + case AF_INET: + return Domain::INET; + default: + UNIMPLEMENTED_MSG("Unhandled domain={}", domain); + return Domain::INET; + } +} + +int TranslateDomainToNative(Domain domain) { + switch (domain) { + case Domain::Unspecified: + return 0; case Domain::INET: return AF_INET; default: @@ -251,20 +326,58 @@ int TranslateDomain(Domain domain) { } } -int TranslateType(Type type) { +Type TranslateTypeFromNative(int type) { + switch (type) { + case 0: + return Type::Unspecified; + case SOCK_STREAM: + return Type::STREAM; + case SOCK_DGRAM: + return Type::DGRAM; + case SOCK_RAW: + return Type::RAW; + case SOCK_SEQPACKET: + return Type::SEQPACKET; + default: + UNIMPLEMENTED_MSG("Unimplemented type={}", type); + return Type::STREAM; + } +} + +int TranslateTypeToNative(Type type) { switch (type) { + case Type::Unspecified: + return 0; case Type::STREAM: return SOCK_STREAM; case Type::DGRAM: return SOCK_DGRAM; + case Type::RAW: + return SOCK_RAW; default: UNIMPLEMENTED_MSG("Unimplemented type={}", type); return 0; } } -int TranslateProtocol(Protocol protocol) { +Protocol TranslateProtocolFromNative(int protocol) { + switch (protocol) { + case 0: + return Protocol::Unspecified; + case IPPROTO_TCP: + return Protocol::TCP; + case IPPROTO_UDP: + return Protocol::UDP; + default: + UNIMPLEMENTED_MSG("Unimplemented protocol={}", protocol); + return Protocol::Unspecified; + } +} + +int TranslateProtocolToNative(Protocol protocol) { switch (protocol) { + case Protocol::Unspecified: + return 0; case Protocol::TCP: return IPPROTO_TCP; case Protocol::UDP: @@ -275,21 +388,10 @@ int TranslateProtocol(Protocol protocol) { } } -SockAddrIn TranslateToSockAddrIn(sockaddr input_) { - sockaddr_in input; - std::memcpy(&input, &input_, sizeof(input)); - +SockAddrIn TranslateToSockAddrIn(sockaddr_in input, size_t input_len) { SockAddrIn result; - switch (input.sin_family) { - case AF_INET: - result.family = Domain::INET; - break; - default: - UNIMPLEMENTED_MSG("Unhandled sockaddr family={}", input.sin_family); - result.family = Domain::INET; - break; - } + result.family = TranslateDomainFromNative(input.sin_family); result.portno = ntohs(input.sin_port); @@ -301,22 +403,28 @@ SockAddrIn TranslateToSockAddrIn(sockaddr input_) { short TranslatePollEvents(PollEvents events) { short result = 0; - if (True(events & PollEvents::In)) { - events &= ~PollEvents::In; - result |= POLLIN; - } - if (True(events & PollEvents::Pri)) { - events &= ~PollEvents::Pri; + const auto translate = [&result, &events](PollEvents guest, short host) { + if (True(events & guest)) { + events &= ~guest; + result |= host; + } + }; + + translate(PollEvents::In, POLLIN); + translate(PollEvents::Pri, POLLPRI); + translate(PollEvents::Out, POLLOUT); + translate(PollEvents::Err, POLLERR); + translate(PollEvents::Hup, POLLHUP); + translate(PollEvents::Nval, POLLNVAL); + translate(PollEvents::RdNorm, POLLRDNORM); + translate(PollEvents::RdBand, POLLRDBAND); + translate(PollEvents::WrBand, POLLWRBAND); + #ifdef _WIN32 + if (True(events & PollEvents::Pri)) { LOG_WARNING(Service, "Winsock doesn't support POLLPRI"); -#else - result |= POLLPRI; -#endif - } - if (True(events & PollEvents::Out)) { - events &= ~PollEvents::Out; - result |= POLLOUT; } +#endif UNIMPLEMENTED_IF_MSG((u16)events != 0, "Unhandled guest events=0x{:x}", (u16)events); @@ -337,6 +445,10 @@ PollEvents TranslatePollRevents(short revents) { translate(POLLOUT, PollEvents::Out); translate(POLLERR, PollEvents::Err); translate(POLLHUP, PollEvents::Hup); + translate(POLLNVAL, PollEvents::Nval); + translate(POLLRDNORM, PollEvents::RdNorm); + translate(POLLRDBAND, PollEvents::RdBand); + translate(POLLWRBAND, PollEvents::WrBand); UNIMPLEMENTED_IF_MSG(revents != 0, "Unhandled host revents=0x{:x}", revents); @@ -360,12 +472,53 @@ std::optional GetHostIPv4Address() { return {}; } - std::array ip_addr = {}; - ASSERT(inet_ntop(AF_INET, &network_interface->ip_address, ip_addr.data(), sizeof(ip_addr)) != - nullptr); return TranslateIPv4(network_interface->ip_address); } +std::string IPv4AddressToString(IPv4Address ip_addr) { + std::array buf = {}; + ASSERT(inet_ntop(AF_INET, &ip_addr, buf.data(), sizeof(buf)) == buf.data()); + return std::string(buf.data()); +} + +u32 IPv4AddressToInteger(IPv4Address ip_addr) { + return static_cast(ip_addr[0]) << 24 | static_cast(ip_addr[1]) << 16 | + static_cast(ip_addr[2]) << 8 | static_cast(ip_addr[3]); +} + +#undef GetAddrInfo // Windows defines it as a macro + +Common::Expected, GetAddrInfoError> GetAddrInfo( + const std::string& host, const std::optional& service) { + addrinfo hints{}; + hints.ai_family = AF_INET; // Switch only supports IPv4. + addrinfo* addrinfo; + s32 gai_err = getaddrinfo(host.c_str(), service.has_value() ? service->c_str() : nullptr, + &hints, &addrinfo); + if (gai_err != 0) { + return Common::Unexpected(TranslateGetAddrInfoErrorFromNative(gai_err)); + } + std::vector ret; + for (auto* current = addrinfo; current; current = current->ai_next) { + // We should only get AF_INET results due to the hints value. + ASSERT_OR_EXECUTE(addrinfo->ai_family == AF_INET && + addrinfo->ai_addrlen == sizeof(sockaddr_in), + continue;); + + AddrInfo& out = ret.emplace_back(); + out.family = TranslateDomainFromNative(current->ai_family); + out.socket_type = TranslateTypeFromNative(current->ai_socktype); + out.protocol = TranslateProtocolFromNative(current->ai_protocol); + out.addr = TranslateToSockAddrIn(*reinterpret_cast(current->ai_addr), + current->ai_addrlen); + if (current->ai_canonname != nullptr) { + out.canon_name = current->ai_canonname; + } + } + freeaddrinfo(addrinfo); + return ret; +} + std::pair Poll(std::vector& pollfds, s32 timeout) { const size_t num = pollfds.size(); @@ -410,6 +563,18 @@ Socket::Socket(Socket&& rhs) noexcept { fd = std::exchange(rhs.fd, INVALID_SOCKET); } +template +std::pair Socket::GetSockOpt(SOCKET fd_, int option) { + T value{}; + socklen_t len = sizeof(value); + const int result = getsockopt(fd_, SOL_SOCKET, option, reinterpret_cast(&value), &len); + if (result != SOCKET_ERROR) { + ASSERT(len == sizeof(value)); + return {value, Errno::SUCCESS}; + } + return {value, GetAndLogLastError()}; +} + template Errno Socket::SetSockOpt(SOCKET fd_, int option, T value) { const int result = @@ -421,7 +586,8 @@ Errno Socket::SetSockOpt(SOCKET fd_, int option, T value) { } Errno Socket::Initialize(Domain domain, Type type, Protocol protocol) { - fd = socket(TranslateDomain(domain), TranslateType(type), TranslateProtocol(protocol)); + fd = socket(TranslateDomainToNative(domain), TranslateTypeToNative(type), + TranslateProtocolToNative(protocol)); if (fd != INVALID_SOCKET) { return Errno::SUCCESS; } @@ -430,19 +596,17 @@ Errno Socket::Initialize(Domain domain, Type type, Protocol protocol) { } std::pair Socket::Accept() { - sockaddr addr; + sockaddr_in addr; socklen_t addrlen = sizeof(addr); - const SOCKET new_socket = accept(fd, &addr, &addrlen); + const SOCKET new_socket = accept(fd, reinterpret_cast(&addr), &addrlen); if (new_socket == INVALID_SOCKET) { return {AcceptResult{}, GetAndLogLastError()}; } - ASSERT(addrlen == sizeof(sockaddr_in)); - AcceptResult result{ .socket = std::make_unique(new_socket), - .sockaddr_in = TranslateToSockAddrIn(addr), + .sockaddr_in = TranslateToSockAddrIn(addr, addrlen), }; return {std::move(result), Errno::SUCCESS}; @@ -458,25 +622,23 @@ Errno Socket::Connect(SockAddrIn addr_in) { } std::pair Socket::GetPeerName() { - sockaddr addr; + sockaddr_in addr; socklen_t addrlen = sizeof(addr); - if (getpeername(fd, &addr, &addrlen) == SOCKET_ERROR) { + if (getpeername(fd, reinterpret_cast(&addr), &addrlen) == SOCKET_ERROR) { return {SockAddrIn{}, GetAndLogLastError()}; } - ASSERT(addrlen == sizeof(sockaddr_in)); - return {TranslateToSockAddrIn(addr), Errno::SUCCESS}; + return {TranslateToSockAddrIn(addr, addrlen), Errno::SUCCESS}; } std::pair Socket::GetSockName() { - sockaddr addr; + sockaddr_in addr; socklen_t addrlen = sizeof(addr); - if (getsockname(fd, &addr, &addrlen) == SOCKET_ERROR) { + if (getsockname(fd, reinterpret_cast(&addr), &addrlen) == SOCKET_ERROR) { return {SockAddrIn{}, GetAndLogLastError()}; } - ASSERT(addrlen == sizeof(sockaddr_in)); - return {TranslateToSockAddrIn(addr), Errno::SUCCESS}; + return {TranslateToSockAddrIn(addr, addrlen), Errno::SUCCESS}; } Errno Socket::Bind(SockAddrIn addr) { @@ -519,7 +681,7 @@ Errno Socket::Shutdown(ShutdownHow how) { return GetAndLogLastError(); } -std::pair Socket::Recv(int flags, std::vector& message) { +std::pair Socket::Recv(int flags, std::span message) { ASSERT(flags == 0); ASSERT(message.size() < static_cast(std::numeric_limits::max())); @@ -532,21 +694,20 @@ std::pair Socket::Recv(int flags, std::vector& message) { return {-1, GetAndLogLastError()}; } -std::pair Socket::RecvFrom(int flags, std::vector& message, SockAddrIn* addr) { +std::pair Socket::RecvFrom(int flags, std::span message, SockAddrIn* addr) { ASSERT(flags == 0); ASSERT(message.size() < static_cast(std::numeric_limits::max())); - sockaddr addr_in{}; + sockaddr_in addr_in{}; socklen_t addrlen = sizeof(addr_in); socklen_t* const p_addrlen = addr ? &addrlen : nullptr; - sockaddr* const p_addr_in = addr ? &addr_in : nullptr; + sockaddr* const p_addr_in = addr ? reinterpret_cast(&addr_in) : nullptr; const auto result = recvfrom(fd, reinterpret_cast(message.data()), static_cast(message.size()), 0, p_addr_in, p_addrlen); if (result != SOCKET_ERROR) { if (addr) { - ASSERT(addrlen == sizeof(addr_in)); - *addr = TranslateToSockAddrIn(addr_in); + *addr = TranslateToSockAddrIn(addr_in, addrlen); } return {static_cast(result), Errno::SUCCESS}; } @@ -597,6 +758,11 @@ Errno Socket::Close() { return Errno::SUCCESS; } +std::pair Socket::GetPendingError() { + auto [pending_err, getsockopt_err] = GetSockOpt(fd, SO_ERROR); + return {TranslateNativeError(pending_err), getsockopt_err}; +} + Errno Socket::SetLinger(bool enable, u32 linger) { return SetSockOpt(fd, SO_LINGER, MakeLinger(enable, linger)); } diff --git a/src/core/internal_network/network.h b/src/core/internal_network/network.h index 1e09a007a..96319bfc8 100644 --- a/src/core/internal_network/network.h +++ b/src/core/internal_network/network.h @@ -16,6 +16,11 @@ #include #endif +namespace Common { +template +class Expected; +} + namespace Network { class SocketBase; @@ -36,6 +41,26 @@ enum class Errno { NETUNREACH, TIMEDOUT, MSGSIZE, + INPROGRESS, + OTHER, +}; + +enum class GetAddrInfoError { + SUCCESS, + ADDRFAMILY, + AGAIN, + BADFLAGS, + FAIL, + FAMILY, + MEMORY, + NODATA, + NONAME, + SERVICE, + SOCKTYPE, + SYSTEM, + BADHINTS, + PROTOCOL, + OVERFLOW_, OTHER, }; @@ -49,6 +74,9 @@ enum class PollEvents : u16 { Err = 1 << 3, Hup = 1 << 4, Nval = 1 << 5, + RdNorm = 1 << 6, + RdBand = 1 << 7, + WrBand = 1 << 8, }; DECLARE_ENUM_FLAG_OPERATORS(PollEvents); @@ -82,4 +110,10 @@ constexpr IPv4Address TranslateIPv4(in_addr addr) { /// @return human ordered IPv4 address (e.g. 192.168.0.1) as an array std::optional GetHostIPv4Address(); +std::string IPv4AddressToString(IPv4Address ip_addr); +u32 IPv4AddressToInteger(IPv4Address ip_addr); + +Common::Expected, GetAddrInfoError> GetAddrInfo( + const std::string& host, const std::optional& service); + } // namespace Network diff --git a/src/core/internal_network/socket_proxy.cpp b/src/core/internal_network/socket_proxy.cpp index 7a77171c2..44e9e3093 100644 --- a/src/core/internal_network/socket_proxy.cpp +++ b/src/core/internal_network/socket_proxy.cpp @@ -98,7 +98,7 @@ Errno ProxySocket::Shutdown(ShutdownHow how) { return Errno::SUCCESS; } -std::pair ProxySocket::Recv(int flags, std::vector& message) { +std::pair ProxySocket::Recv(int flags, std::span message) { LOG_WARNING(Network, "(STUBBED) called"); ASSERT(flags == 0); ASSERT(message.size() < static_cast(std::numeric_limits::max())); @@ -106,7 +106,7 @@ std::pair ProxySocket::Recv(int flags, std::vector& message) { return {static_cast(0), Errno::SUCCESS}; } -std::pair ProxySocket::RecvFrom(int flags, std::vector& message, SockAddrIn* addr) { +std::pair ProxySocket::RecvFrom(int flags, std::span message, SockAddrIn* addr) { ASSERT(flags == 0); ASSERT(message.size() < static_cast(std::numeric_limits::max())); @@ -140,8 +140,8 @@ std::pair ProxySocket::RecvFrom(int flags, std::vector& message, } } -std::pair ProxySocket::ReceivePacket(int flags, std::vector& message, - SockAddrIn* addr, std::size_t max_length) { +std::pair ProxySocket::ReceivePacket(int flags, std::span message, SockAddrIn* addr, + std::size_t max_length) { ProxyPacket& packet = received_packets.front(); if (addr) { addr->family = Domain::INET; @@ -153,10 +153,7 @@ std::pair ProxySocket::ReceivePacket(int flags, std::vector& mes std::size_t read_bytes; if (packet.data.size() > max_length) { read_bytes = max_length; - message.clear(); - std::copy(packet.data.begin(), packet.data.begin() + read_bytes, - std::back_inserter(message)); - message.resize(max_length); + memcpy(message.data(), packet.data.data(), max_length); if (protocol == Protocol::UDP) { if (!peek) { @@ -171,9 +168,7 @@ std::pair ProxySocket::ReceivePacket(int flags, std::vector& mes } } else { read_bytes = packet.data.size(); - message.clear(); - std::copy(packet.data.begin(), packet.data.end(), std::back_inserter(message)); - message.resize(max_length); + memcpy(message.data(), packet.data.data(), read_bytes); if (!peek) { received_packets.pop(); } @@ -293,6 +288,11 @@ Errno ProxySocket::SetNonBlock(bool enable) { return Errno::SUCCESS; } +std::pair ProxySocket::GetPendingError() { + LOG_DEBUG(Network, "(STUBBED) called"); + return {Errno::SUCCESS, Errno::SUCCESS}; +} + bool ProxySocket::IsOpened() const { return fd != INVALID_SOCKET; } diff --git a/src/core/internal_network/socket_proxy.h b/src/core/internal_network/socket_proxy.h index 6e991fa38..e12c413d1 100644 --- a/src/core/internal_network/socket_proxy.h +++ b/src/core/internal_network/socket_proxy.h @@ -39,11 +39,11 @@ public: Errno Shutdown(ShutdownHow how) override; - std::pair Recv(int flags, std::vector& message) override; + std::pair Recv(int flags, std::span message) override; - std::pair RecvFrom(int flags, std::vector& message, SockAddrIn* addr) override; + std::pair RecvFrom(int flags, std::span message, SockAddrIn* addr) override; - std::pair ReceivePacket(int flags, std::vector& message, SockAddrIn* addr, + std::pair ReceivePacket(int flags, std::span message, SockAddrIn* addr, std::size_t max_length); std::pair Send(std::span message, int flags) override; @@ -74,6 +74,8 @@ public: template Errno SetSockOpt(SOCKET fd, int option, T value); + std::pair GetPendingError() override; + bool IsOpened() const override; private: diff --git a/src/core/internal_network/sockets.h b/src/core/internal_network/sockets.h index 11e479e50..46a53ef79 100644 --- a/src/core/internal_network/sockets.h +++ b/src/core/internal_network/sockets.h @@ -59,10 +59,9 @@ public: virtual Errno Shutdown(ShutdownHow how) = 0; - virtual std::pair Recv(int flags, std::vector& message) = 0; + virtual std::pair Recv(int flags, std::span message) = 0; - virtual std::pair RecvFrom(int flags, std::vector& message, - SockAddrIn* addr) = 0; + virtual std::pair RecvFrom(int flags, std::span message, SockAddrIn* addr) = 0; virtual std::pair Send(std::span message, int flags) = 0; @@ -87,6 +86,8 @@ public: virtual Errno SetNonBlock(bool enable) = 0; + virtual std::pair GetPendingError() = 0; + virtual bool IsOpened() const = 0; virtual void HandleProxyPacket(const ProxyPacket& packet) = 0; @@ -126,9 +127,9 @@ public: Errno Shutdown(ShutdownHow how) override; - std::pair Recv(int flags, std::vector& message) override; + std::pair Recv(int flags, std::span message) override; - std::pair RecvFrom(int flags, std::vector& message, SockAddrIn* addr) override; + std::pair RecvFrom(int flags, std::span message, SockAddrIn* addr) override; std::pair Send(std::span message, int flags) override; @@ -156,6 +157,11 @@ public: template Errno SetSockOpt(SOCKET fd, int option, T value); + std::pair GetPendingError() override; + + template + std::pair GetSockOpt(SOCKET fd, int option); + bool IsOpened() const override; void HandleProxyPacket(const ProxyPacket& packet) override; -- cgit v1.2.3