Add more disconnected limitations in sys_net

rpcs3/Emu/Cell/lv2/sys_net.cpp

@@ -521,6 +521,12 @@ error_code sys_net_bnet_connect(ppu_thread& ppu, s32 s, vm::ptr<sys_net_sockaddr
 		return -SYS_NET_EINVAL;
 	}
 
+	if (addr->sa_family != SYS_NET_AF_INET)
+	{
+		sys_net.error("sys_net_bnet_connect(s=%d): unsupported sa_family (%d)", s, addr->sa_family);
+		return -SYS_NET_EAFNOSUPPORT;
+	}
+
 	if (!idm::check<lv2_socket>(s))
 	{
 		return -SYS_NET_EBADF;

rpcs3/Emu/Cell/lv2/sys_net/lv2_socket_native.cpp

@@ -164,6 +164,12 @@ std::optional<s32> lv2_socket_native::connect(const sys_net_sockaddr& addr)
 
 	sys_net.notice("[Native] Attempting to connect on %s:%d", native_addr.sin_addr, std::bit_cast<be_t<u16>, u16>(native_addr.sin_port));
 
+	auto& nph = g_fxo->get<named_thread<np::np_handler>>();
+	if (!nph.get_net_status() && is_ip_public_address(native_addr))
+	{
+		return -SYS_NET_EADDRNOTAVAIL;
+	}
+
 	if (psa_in->sin_port == 53)
 	{
 		// Add socket to the dns hook list
@@ -896,6 +902,12 @@ std::optional<s32> lv2_socket_native::sendto(s32 flags, const std::vector<u8>& b
 	{
 		native_addr = sys_net_addr_to_native_addr(*opt_sn_addr);
 		sys_net.trace("[Native] Attempting to send to %s:%d", (*native_addr).sin_addr, std::bit_cast<be_t<u16>, u16>((*native_addr).sin_port));
+
+		auto& nph = g_fxo->get<named_thread<np::np_handler>>();
+		if (!nph.get_net_status() && is_ip_public_address(*native_addr))
+		{
+			return -SYS_NET_EADDRNOTAVAIL;
+		}
 	}
 
 	sys_net_error result{};
@@ -915,13 +927,6 @@ std::optional<s32> lv2_socket_native::sendto(s32 flags, const std::vector<u8>& b
 	{
 		const s32 ret_analyzer = dnshook.analyze_dns_packet(lv2_id, reinterpret_cast<const u8*>(buf.data()), buf.size());
 
-		// If we're offline return ENETDOWN for dns requests
-		auto& nph = g_fxo->get<named_thread<np::np_handler>>();
-		if (!nph.get_net_status())
-		{
-			return -SYS_NET_ENETDOWN;
-		}
-
 		// Check if the packet is intercepted
 		if (ret_analyzer >= 0)
 		{

rpcs3/Emu/Cell/lv2/sys_net/sys_net_helpers.cpp

@@ -151,6 +151,21 @@ sys_net_sockaddr native_addr_to_sys_net_addr(const ::sockaddr_storage& native_ad
 	return native_addr;
 }
 
+bool is_ip_public_address(const ::sockaddr_in& addr)
+{
+	const u8* ip = reinterpret_cast<const u8*>(&addr.sin_addr.s_addr);
+
+	if ((ip[0] == 10) ||
+		(ip[0] == 127) ||
+		(ip[0] == 172 && (ip[1] >= 16 && ip[1] <= 31)) ||
+		(ip[0] == 192 && ip[1] == 168))
+	{
+		return false;
+	}
+
+	return true;
+}
+
 s32 network_clear_queue(ppu_thread& ppu)
 {
 	s32 cleared = 0;

rpcs3/Emu/Cell/lv2/sys_net/sys_net_helpers.h

@@ -21,6 +21,7 @@ int get_native_error();
 sys_net_error get_last_error(bool is_blocking, int native_error = 0);
 sys_net_sockaddr native_addr_to_sys_net_addr(const ::sockaddr_storage& native_addr);
 ::sockaddr_in sys_net_addr_to_native_addr(const sys_net_sockaddr& sn_addr);
+bool is_ip_public_address(const ::sockaddr_in& addr);
 s32 network_clear_queue(ppu_thread& ppu);
 
 #ifdef _WIN32