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authorliamwhite <liamwhite@users.noreply.github.com>2023-11-04 16:14:08 +0100
committerGitHub <noreply@github.com>2023-11-04 16:14:08 +0100
commitf0cd02b9bda051c3d13e21d38771d4c115f812e6 (patch)
tree50d4d7403039590505d26ec734b7cb552c87765d /src/core/hle
parentMerge pull request #11885 from liamwhite/stop-nagging-me (diff)
parentsockets: use safe access helpers (diff)
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Diffstat (limited to 'src/core/hle')
-rw-r--r--src/core/hle/service/sockets/bsd.cpp77
-rw-r--r--src/core/hle/service/sockets/bsd.h2
2 files changed, 38 insertions, 41 deletions
diff --git a/src/core/hle/service/sockets/bsd.cpp b/src/core/hle/service/sockets/bsd.cpp
index 85849d5f3..dd652ca42 100644
--- a/src/core/hle/service/sockets/bsd.cpp
+++ b/src/core/hle/service/sockets/bsd.cpp
@@ -39,6 +39,18 @@ bool IsConnectionBased(Type type) {
}
}
+template <typename T>
+T GetValue(std::span<const u8> buffer) {
+ T t{};
+ std::memcpy(&t, buffer.data(), std::min(sizeof(T), buffer.size()));
+ return t;
+}
+
+template <typename T>
+void PutValue(std::span<u8> buffer, const T& t) {
+ std::memcpy(buffer.data(), &t, std::min(sizeof(T), buffer.size()));
+}
+
} // Anonymous namespace
void BSD::PollWork::Execute(BSD* bsd) {
@@ -316,22 +328,12 @@ void BSD::SetSockOpt(HLERequestContext& ctx) {
const s32 fd = rp.Pop<s32>();
const u32 level = rp.Pop<u32>();
const OptName optname = static_cast<OptName>(rp.Pop<u32>());
-
- const auto buffer = ctx.ReadBuffer();
- const u8* optval = buffer.empty() ? nullptr : buffer.data();
- size_t optlen = buffer.size();
-
- std::array<u64, 2> values;
- if ((optname == OptName::SNDTIMEO || optname == OptName::RCVTIMEO) && buffer.size() == 8) {
- std::memcpy(values.data(), buffer.data(), sizeof(values));
- optlen = sizeof(values);
- optval = reinterpret_cast<const u8*>(values.data());
- }
+ const auto optval = ctx.ReadBuffer();
LOG_DEBUG(Service, "called. fd={} level={} optname=0x{:x} optlen={}", fd, level,
- static_cast<u32>(optname), optlen);
+ static_cast<u32>(optname), optval.size());
- BuildErrnoResponse(ctx, SetSockOptImpl(fd, level, optname, optlen, optval));
+ BuildErrnoResponse(ctx, SetSockOptImpl(fd, level, optname, optval));
}
void BSD::Shutdown(HLERequestContext& ctx) {
@@ -521,18 +523,19 @@ std::pair<s32, Errno> BSD::SocketImpl(Domain domain, Type type, Protocol protoco
std::pair<s32, Errno> BSD::PollImpl(std::vector<u8>& write_buffer, std::span<const u8> read_buffer,
s32 nfds, s32 timeout) {
- if (write_buffer.size() < nfds * sizeof(PollFD)) {
- return {-1, Errno::INVAL};
- }
-
- if (nfds == 0) {
+ if (nfds <= 0) {
// When no entries are provided, -1 is returned with errno zero
return {-1, Errno::SUCCESS};
}
+ if (read_buffer.size() < nfds * sizeof(PollFD)) {
+ return {-1, Errno::INVAL};
+ }
+ if (write_buffer.size() < nfds * sizeof(PollFD)) {
+ return {-1, Errno::INVAL};
+ }
- const size_t length = std::min(read_buffer.size(), write_buffer.size());
std::vector<PollFD> fds(nfds);
- std::memcpy(fds.data(), read_buffer.data(), length);
+ std::memcpy(fds.data(), read_buffer.data(), nfds * sizeof(PollFD));
if (timeout >= 0) {
const s64 seconds = timeout / 1000;
@@ -580,7 +583,7 @@ std::pair<s32, Errno> BSD::PollImpl(std::vector<u8>& write_buffer, std::span<con
for (size_t i = 0; i < num; ++i) {
fds[i].revents = Translate(host_pollfds[i].revents);
}
- std::memcpy(write_buffer.data(), fds.data(), length);
+ std::memcpy(write_buffer.data(), fds.data(), nfds * sizeof(PollFD));
return Translate(result);
}
@@ -608,8 +611,7 @@ std::pair<s32, Errno> BSD::AcceptImpl(s32 fd, std::vector<u8>& write_buffer) {
new_descriptor.is_connection_based = descriptor.is_connection_based;
const SockAddrIn guest_addr_in = Translate(result.sockaddr_in);
- const size_t length = std::min(sizeof(guest_addr_in), write_buffer.size());
- std::memcpy(write_buffer.data(), &guest_addr_in, length);
+ PutValue(write_buffer, guest_addr_in);
return {new_fd, Errno::SUCCESS};
}
@@ -619,8 +621,7 @@ Errno BSD::BindImpl(s32 fd, std::span<const u8> addr) {
return Errno::BADF;
}
ASSERT(addr.size() == sizeof(SockAddrIn));
- SockAddrIn addr_in;
- std::memcpy(&addr_in, addr.data(), sizeof(addr_in));
+ auto addr_in = GetValue<SockAddrIn>(addr);
return Translate(file_descriptors[fd]->socket->Bind(Translate(addr_in)));
}
@@ -631,8 +632,7 @@ Errno BSD::ConnectImpl(s32 fd, std::span<const u8> addr) {
}
UNIMPLEMENTED_IF(addr.size() != sizeof(SockAddrIn));
- SockAddrIn addr_in;
- std::memcpy(&addr_in, addr.data(), sizeof(addr_in));
+ auto addr_in = GetValue<SockAddrIn>(addr);
return Translate(file_descriptors[fd]->socket->Connect(Translate(addr_in)));
}
@@ -650,7 +650,7 @@ Errno BSD::GetPeerNameImpl(s32 fd, std::vector<u8>& write_buffer) {
ASSERT(write_buffer.size() >= sizeof(guest_addrin));
write_buffer.resize(sizeof(guest_addrin));
- std::memcpy(write_buffer.data(), &guest_addrin, sizeof(guest_addrin));
+ PutValue(write_buffer, guest_addrin);
return Translate(bsd_errno);
}
@@ -667,7 +667,7 @@ Errno BSD::GetSockNameImpl(s32 fd, std::vector<u8>& write_buffer) {
ASSERT(write_buffer.size() >= sizeof(guest_addrin));
write_buffer.resize(sizeof(guest_addrin));
- std::memcpy(write_buffer.data(), &guest_addrin, sizeof(guest_addrin));
+ PutValue(write_buffer, guest_addrin);
return Translate(bsd_errno);
}
@@ -725,7 +725,7 @@ Errno BSD::GetSockOptImpl(s32 fd, u32 level, OptName optname, std::vector<u8>& o
optval.size() == sizeof(Errno), { return Errno::INVAL; },
"Incorrect getsockopt option size");
optval.resize(sizeof(Errno));
- memcpy(optval.data(), &translated_pending_err, sizeof(Errno));
+ PutValue(optval, translated_pending_err);
}
return Translate(getsockopt_err);
}
@@ -735,7 +735,7 @@ Errno BSD::GetSockOptImpl(s32 fd, u32 level, OptName optname, std::vector<u8>& o
}
}
-Errno BSD::SetSockOptImpl(s32 fd, u32 level, OptName optname, size_t optlen, const void* optval) {
+Errno BSD::SetSockOptImpl(s32 fd, u32 level, OptName optname, std::span<const u8> optval) {
if (!IsFileDescriptorValid(fd)) {
return Errno::BADF;
}
@@ -748,17 +748,15 @@ Errno BSD::SetSockOptImpl(s32 fd, u32 level, OptName optname, size_t optlen, con
Network::SocketBase* const socket = file_descriptors[fd]->socket.get();
if (optname == OptName::LINGER) {
- ASSERT(optlen == sizeof(Linger));
- Linger linger;
- std::memcpy(&linger, optval, sizeof(linger));
+ ASSERT(optval.size() == sizeof(Linger));
+ auto linger = GetValue<Linger>(optval);
ASSERT(linger.onoff == 0 || linger.onoff == 1);
return Translate(socket->SetLinger(linger.onoff != 0, linger.linger));
}
- ASSERT(optlen == sizeof(u32));
- u32 value;
- std::memcpy(&value, optval, sizeof(value));
+ ASSERT(optval.size() == sizeof(u32));
+ auto value = GetValue<u32>(optval);
switch (optname) {
case OptName::REUSEADDR:
@@ -862,7 +860,7 @@ std::pair<s32, Errno> BSD::RecvFromImpl(s32 fd, u32 flags, std::vector<u8>& mess
} else {
ASSERT(addr.size() == sizeof(SockAddrIn));
const SockAddrIn result = Translate(addr_in);
- std::memcpy(addr.data(), &result, sizeof(result));
+ PutValue(addr, result);
}
}
@@ -886,8 +884,7 @@ std::pair<s32, Errno> BSD::SendToImpl(s32 fd, u32 flags, std::span<const u8> mes
Network::SockAddrIn* p_addr_in = nullptr;
if (!addr.empty()) {
ASSERT(addr.size() == sizeof(SockAddrIn));
- SockAddrIn guest_addr_in;
- std::memcpy(&guest_addr_in, addr.data(), sizeof(guest_addr_in));
+ auto guest_addr_in = GetValue<SockAddrIn>(addr);
addr_in = Translate(guest_addr_in);
p_addr_in = &addr_in;
}
diff --git a/src/core/hle/service/sockets/bsd.h b/src/core/hle/service/sockets/bsd.h
index 161f22b9b..4f69d382c 100644
--- a/src/core/hle/service/sockets/bsd.h
+++ b/src/core/hle/service/sockets/bsd.h
@@ -163,7 +163,7 @@ private:
Errno ListenImpl(s32 fd, s32 backlog);
std::pair<s32, Errno> FcntlImpl(s32 fd, FcntlCmd cmd, s32 arg);
Errno GetSockOptImpl(s32 fd, u32 level, OptName optname, std::vector<u8>& optval);
- Errno SetSockOptImpl(s32 fd, u32 level, OptName optname, size_t optlen, const void* optval);
+ Errno SetSockOptImpl(s32 fd, u32 level, OptName optname, std::span<const u8> optval);
Errno ShutdownImpl(s32 fd, s32 how);
std::pair<s32, Errno> RecvImpl(s32 fd, u32 flags, std::vector<u8>& message);
std::pair<s32, Errno> RecvFromImpl(s32 fd, u32 flags, std::vector<u8>& message,