feat(libSceNet): implement Show*WithMemory diagnostics and sceNetGetStatisticsInfo

core/libs/prx/libSceNet/Export.cpp

@@ -2538,7 +2538,9 @@ int APS5_VABI sceNetClearDnsCache(int flags) {
 }
 
 int APS5_VABI sceNetGetStatisticsInfo(NetStatisticsInfo* info, std::uint32_t flags) {
-    NotImplemented_nid_no_patch(__func__);
+    if (info == nullptr) return fail(NET_EFAULT);
+    constexpr std::int32_t FREE_BYTES = 16 * 1024 * 1024;
+    *info = {FREE_BYTES, FREE_BYTES, 0, 0, FREE_BYTES, FREE_BYTES};
     return 0;
 }
 
@@ -2560,7 +2562,8 @@ int APS5_VABI sceNetSetDnsInfo(const NetDnsInfo* info, std::uint32_t flags) {
 }
 
 int APS5_VABI sceNetShowIfconfigWithMemory(std::int32_t poolId) {
-    NotImplemented_nid_no_patch(__func__);
+    std::lock_guard lk(g_mutex);
+    if (g_pools.find(poolId) == g_pools.end()) return fail(NET_EBADF);
     return 0;
 }
 
@@ -2569,7 +2572,8 @@ int APS5_VABI sceNetShowPolicy(void) {
 }
 
 int APS5_VABI sceNetShowPolicyWithMemory(std::int32_t poolId) {
-    NotImplemented_nid_no_patch(__func__);
+    std::lock_guard lk(g_mutex);
+    if (g_pools.find(poolId) == g_pools.end()) return fail(NET_EBADF);
     return 0;
 }
 
@@ -2619,7 +2623,8 @@ int APS5_VABI sceNetShowRoute6(void) {
 }
 
 int APS5_VABI sceNetShowRoute6WithMemory(std::int32_t poolId) {
-    NotImplemented_nid_no_patch(__func__);
+    std::lock_guard lk(g_mutex);
+    if (g_pools.find(poolId) == g_pools.end()) return fail(NET_EBADF);
     return 0;
 }
 

core/libs/prx/libSceNet/include/Net.hpp

@@ -87,7 +87,14 @@ struct NetSockInfo6 {
     std::int32_t tx_wait;
     std::int32_t reserved[2];
 };
-struct NetStatisticsInfo;
+struct NetStatisticsInfo {
+    std::int32_t kernel_mem_free_size;
+    std::int32_t kernel_mem_free_min;
+    std::int32_t packet_count;
+    std::int32_t packet_qos_count;
+    std::int32_t libnet_mem_free_size;
+    std::int32_t libnet_mem_free_min;
+};
 struct NetInterfaceStats;
 struct NetRouteInfo;
 struct NetDebugParameter;

core/libs/tests/GuestSceNet.cpp

@@ -255,9 +255,15 @@ static void CheckNetstat() {
     Require(sceNetShowRoute6() == 0);
     Require(Failed(sceNetShowNetstatWithMemory(-1), 9));
     Require(Failed(sceNetShowRouteWithMemory(-1), 9));
+    Require(Failed(sceNetShowIfconfigWithMemory(-1), 9));
+    Require(Failed(sceNetShowPolicyWithMemory(-1), 9));
+    Require(Failed(sceNetShowRoute6WithMemory(-1), 9));
     const int pool = sceNetPoolCreate("netstat", 4096, 0);
     Require(pool > 0);
     Require(sceNetShowRouteWithMemory(pool) == 0);
+    Require(sceNetShowIfconfigWithMemory(pool) == 0);
+    Require(sceNetShowPolicyWithMemory(pool) == 0);
+    Require(sceNetShowRoute6WithMemory(pool) == 0);
     const auto empty = CaptureNetstat(pool);
     Require(empty.find("bytes=4096 sockets=0") != std::string::npos);
     const int socket = sceNetSocket("netstat", 2, 1, 0);
@@ -279,6 +285,9 @@ static void CheckNetstat() {
     Require(sceNetPoolDestroy(pool) == 0);
     Require(Failed(sceNetShowNetstatWithMemory(pool), 9));
     Require(Failed(sceNetShowRouteWithMemory(pool), 9));
+    Require(Failed(sceNetShowIfconfigWithMemory(pool), 9));
+    Require(Failed(sceNetShowPolicyWithMemory(pool), 9));
+    Require(Failed(sceNetShowRoute6WithMemory(pool), 9));
 }
 
 static void CheckPoolStats() {
@@ -292,6 +301,22 @@ static void CheckPoolStats() {
     Require(Failed(sceNetGetMemoryPoolStats(pool, &stats), 9));
 }
 
+static void CheckStatisticsInfo() {
+    Require(Failed(sceNetGetStatisticsInfo(nullptr, 0), 14));
+    NetStatisticsInfo info;
+    std::memset(&info, 0xaa, sizeof(info));
+    Require(sceNetGetStatisticsInfo(&info, 0) == 0);
+    Require(sizeof(info) == 24);
+    Require(info.kernel_mem_free_size > 0 && info.kernel_mem_free_min > 0);
+    Require(info.libnet_mem_free_size > 0 && info.libnet_mem_free_min > 0);
+    Require(info.kernel_mem_free_min <= info.kernel_mem_free_size);
+    Require(info.libnet_mem_free_min <= info.libnet_mem_free_size);
+    Require(info.packet_count == 0 && info.packet_qos_count == 0);
+    NetStatisticsInfo again;
+    Require(sceNetGetStatisticsInfo(&again, 0x1234) == 0);
+    Require(std::memcmp(&again, &info, sizeof(info)) == 0);
+}
+
 static void CheckIfName() {
     constexpr std::array<const char*, 10> names = {
         "lo0", "eth0", "eth1", "dbg0", "wlan0", "wlan1", "gbe0", "bt0", "phone0", "pppoe0"};
@@ -2160,6 +2185,7 @@ int main() {
     CheckEpollWritable();
     CheckSocketHostErrors();
     CheckPoolStats();
+    CheckStatisticsInfo();
     CheckIfName();
     CheckRandom();
     CheckByteOrderConversion();

docs/dev/debt/libSceNet.md

@@ -1,10 +1,11 @@
 # libSceNet technical debt
 
+- [sceNetShowRouteWithMemory, sceNetShowIfconfigWithMemory, sceNetShowPolicyWithMemory, sceNetShowRoute6WithMemory](../../../core/libs/prx/libSceNet/Export.cpp) (libSceNet) - validates memory pool ID and returns success without printing anything: the `(poolId)` signature and pool validation follow [shadPS4](https://github.com/shadps4-emu/shadPS4/blob/main/src/core/libraries/net/net.cpp) and `sceNetShowNetstatWithMemory`; shadPS4 stubs the Ifconfig, Policy and Route6 forms the same way, validating the pool and returning success. What the console prints and where is unverified
 ### Silent stubs
 
-- [sceNetShowRouteWithMemory](../../../core/libs/prx/libSceNet/Export.cpp) (libSceNet) - validates memory pool ID and returns success without printing anything: the `(poolId)` signature and pool validation follow [shadPS4](https://github.com/shadps4-emu/shadPS4/blob/main/src/core/libraries/net/net.cpp) and `sceNetShowNetstatWithMemory`. What the console prints and where is unverified
 - [sceNetShowIfconfig, sceNetShowNetstat](../../../core/libs/prx/libSceNet/Export.cpp) (libSceNet) print the console's layout (a PS5 on firmware 13.40, measured 2026-10-19) with what the emulator knows. Ifconfig prints `eth0` from the host interface `sceNetCtlGetInfo` reports, without its IPv6 address, `UP6`, link status, traffic counters or times, then `lo0` as the console does and the two IPv4 DNS servers, with `::, ::` for IPv6. It leaves out the wireless interfaces and the pool and statistics sections. Netstat lists only the title's sockets and epolls; the console lists every process's. The self and non-blocking flags, addresses, buffer sizes and names are filled; the R, S, RE and SE flags, the field after the type, queue lengths, rates and drops print as for an idle socket, TCP states are only `LISTEN`, `ESTABLISHED` and `CLOSED`, and the self flag on epolls is inferred. Before initialization both return the not-initialized error.
 - [sceNetShowPolicy, sceNetShowNetstatEx, sceNetShowRoute, sceNetShowRoute6](../../../core/libs/prx/libSceNet/Export.cpp) (libSceNet) - return success without printing anything: the `()` signatures and the success return follow [shadPS4](https://github.com/shadps4-emu/shadPS4/blob/main/src/core/libraries/network/net.cpp), which stubs each the same way. PPSA01530 fails to load without the `sceNetShowIfconfig` export (#3177); PPSA11386 imports `sceNetShowNetstat` but does not call it during start-up. What the console prints and where is unverified
+- [sceNetGetStatisticsInfo](../../../core/libs/prx/libSceNet/Export.cpp) (libSceNet) - fills the six 32-bit fields (kernel memory free and minimum free, packet count, QoS packet count, library memory free and minimum free) with 16 MiB free, nothing queued and no flag check, and a null pointer fails with `EFAULT`, as [shadPS4](https://github.com/shadps4-emu/shadPS4/blob/main/src/core/libraries/net/net.cpp) does; the layout follows its `net_types.h`. The host has no counters for the console's network memory, so the values are not measured and the call works before `sceNetInit`.
 
 ### Unknown function info