Firmware 13.42's module looks the name up with sceNetGetIfName, which
has none past 9, then issues SIOCGIFFLAGS on the empty name. That ioctl
fails, and the call returns -1 with the flags untouched. Return the
same instead of throwing. Interfaces 1 to 9 still throw, and the test
no longer asserts that for 1 and 4, which the console answers from the
kernel.
Asked for in oneandonlydean's review, from BunnyFl's read of the
module.
Human Fall Flat (PPSA02429) opens its sockets with libkernel's socket()
and reads options of them with sceNetGetsockopt. libSceNet only looked
in its own socket table, so each call failed with SCE_NET_ERROR_EBADF.
On the console both calls work on the same kernel sockets, the position
sceNetSetsockopt already takes for MXGP 26 (PPSA30839).
A descriptor libSceNet does not own but libkernel has open as a socket
now goes to libkernel's getsockopt(), which answers the options it
models. Anything else still fails with EBADF. The fallback runs after
g_mutex is released.
guest_sce_net reads SO_SNDBUF and TCP_NODELAY of a libkernel TCP socket
through sceNetGetsockopt, checks that an unknown level fails with
EINVAL, and that the call fails with EBADF once the socket is closed.
Human Fall Flat (PPSA02429) opens its sockets with libkernel's socket()
and registers them with sceNetEpollControl. libSceNet only looked in its
own socket table, so every ADD and DEL failed with SCE_NET_ERROR_EBADF.
The game retries without pause: on box 2 it made more than 1.6 million
failing calls on 14 descriptors in its first seconds, all of them
libkernel sockets.
sceNetEpollControl now accepts a descriptor libkernel has open as a
socket, as sceNetSocketClose and sceNetSetsockopt already do for MXGP 26
(PPSA30839). sceNetEpollWait looks up the host socket of such a
registration through libkernel after g_mutex is released, because that
lookup asks libSceNet's own table for descriptors libkernel does not
own, and keeps the owner alive across the host poll. libkernel's close()
retires the registrations of the closed socket; a wait drops a
registration whose socket is gone.
guest_sce_net registers a libkernel UDP socket, waits for it to become
readable and then writable, deletes it twice, closes registered sockets
through close() and sceKernelClose and waits again, and checks that a
descriptor that was never open still fails with EBADF.
sceNetEpollCreate fails with EINVAL for a null name or non-zero flags,
sceNetResolverCreate and sceNetGetMacAddress for non-zero flags, and
sceNetResolverStartNtoa, before any other check, for a negative timeout
or retry count or a flag bit outside 0x10001, as prosper reads the
libSceNet module. The two accepted resolver flag bits are still ignored,
which the debt file now records.
Apply the firmware 13.42 module-probe report in PR #9506: all four DNS calls check initialization first; getters return EINVAL for null outputs or nonzero flags; setters reject flags before reading guest memory. Keep the checked input copy and document EFAULT as host safety, not firmware behavior. Use the current public Net.hpp declarations in the regression.
Rebased onto upstream e7e3e9c198. Ubuntu 24.04, GCC 13.3, Release: actual libc/libkernel/libSceNet libraries and both focused test executables built. guest_sce_net passes. A separate harness linked against those unmodified libraries passes initialization, errno, invalid flags, unreadable-input flag precedence, null clearing and unchanged-output checks. The full guest_net_dns_info test is blocked here: process_vm_readv is denied with EPERM by the execution environment. No full DNS regression pass is claimed. Public-header audit, conventions, test registration and whitespace checks pass.
The resolver still uses host DNS; IPv6 host-server discovery and firmware server-count behavior remain debt. Firmware evidence: https://github.com/boykopovar/AnyPS5/pull/9506#issuecomment-6390574180
AI-assisted: yes
Main's #10706 removes the local declarations at the top of libSceNet's
Export.cpp, where this branch had added __inet_pton and __inet_ntop.
libkernel's Api.hpp, which Export.cpp includes, now declares both, so the
merge takes main's side there.
BunnyFl measured both calls in firmware 13.42 libSceNet.sprx, run in an
emulator on the module itself. sceNetInitParam returns 0x80410116 for a
null parameter. The first non-null call copies the first 32 bytes of the
parameter and returns 0, and every later call returns 0x80410110, with a
null parameter and after sceNetTerm too, because the flag is never
cleared. sceNetConfigGetIfFlags returns 0x8041130E for a null flags
pointer before anything else. Both replace throws that stood in for the
unknown answers.
The first successful sceNetInitParam still marks the library initialized,
as sceNetInit does here, because the other calls check it. The module
reads only bit 0 of the stored copy's first word, to raise the pool limit
of sceNetPoolCreate from 32 to 128; that limit is recorded as not
modelled, as sceNetPoolCreate here has none.
sceNetConfigGetIfFlags answers interface 0, lo0 in the sceNetGetIfName
numbering, with IFF_UP | IFF_LOOPBACK | IFF_RUNNING | IFF_MULTICAST, the
flags FreeBSD 11 gives a configured loopback. Other interfaces and a null
flags pointer throw: the library models no other interface.
sceNetInitParam initializes the library as sceNetInit does and returns
its result. NetInitializeParameter's layout is unknown, so its fields are
not read; a null parameter throws because its console result is unknown.
After sceNetInit, the console's sceNetUsleep prints
"[LIBNET] usleep <count>" to standard output for a negative count
before failing with EINVAL, as a payload measured on firmware 13.60
(#9076). AnyPS5 failed without printing it.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
main now starts libSceNetCtl initialized, so GuestNetCtl's checks before
sceNetCtlInit expect argument errors; the NpToolkit register, unregister
and check join them with the errors and result their IPv4 counterparts give.
Dean