[Queuse]

What

Read SO_PROTOCOL for IPv4/IPv6 stream and datagram sockets, including default protocol selection and accepted-socket inheritance, following FreeBSD 11.4 sogetopt. Raw protocol mapping remains unimplemented and throws; console measurements remain in library debt.

Tested

Windows 11 x86-64, WinLibs MinGW-w64 GCC 15.2.0-r7, Ninja, Release. Head 2103fdf846 includes main 2fade7ef4e.

• Rebuilt affected libraries and focused targets; guest_net_protocol: 1/1 pass, with no skips.
• Conventions and whitespace checks pass.
• No fresh Linux/macOS, full hosted product build, title or console run.

Integration order remains #9523 → #9542 → #9515 → #9578 and #9525 → #9543 → #9930 → #8686; #9931 follows #9542. #9930/#9931 may land independently after their prerequisites, before the agreed #9932/#9948 updates. Preserve every option path, short-buffer rule, test and debt entry.

#6044 was closed without merging its test relocation, so that former coordination item is retired. The existing #5836 order proposal remains unconfirmed; its peer-transport and broadcast-alias changes must retain current buffer validation and option state when integrated. No author agreement is assumed.

Earlier combined Windows/WSL2 network results remain tied to tree c9c1293; they are separate from this head's fresh Windows run.

Fresh overlap snapshot 30be9b428b: existing getter/debt intersections remain covered by the ordering above. 7 shared-file comparisons are incomplete because those branches conflict with the base: #5836, #7201, #9727, #9733, #9948, #10502, #10706. Manual inspection identifies export-header refactoring (#10706), diagnostic display (#10502), argument validation (#9727), send/platform paths (#9733/#7201), socket records (#9948), and the already pending peer/broadcast changes (#5836). No duplicate option branch was found in the inspected shared hunks. Retain the private socket fields, canonical declarations, test registrations and debt entries when integrating. These source checks do not establish author agreement or a combined runtime pass.

Checklist

• Based on current main; no other open PR implements the same functions
• One topic per PR; follow-ups go in a new PR
• No comments in code except technical debt
• Unimplemented paths throw (NotImplemented_nid_no_patch); silent stubs are listed under Silent stubs in their library's technical debt file
• No notes, investigation .md files or images added to the repository (attach them to this PR)
• New third-party code is a submodule built from source
• Generic behaviour, not specific to one title
• Depends on: feat(libSceNet): receive urgent TCP data inline #9543 (merge order; includes feat(libSceNet): expose socket type and listen state #9525)
• Fixes: none
• Unblocks: none
• GPUs tested: n/a
• AI-assisted: yes

[github-actions]

Progress report (30be9b4 → 2103fdf)

📉 System libraries: 48.77% (-0.01%, -1 reverted functions)

⚠️ 1 went back to stubs

Library	Name
libSceNet	sceNetGetsockopt

Changed libraries (implemented exports)

Library	Before	After	Change
libSceNet	75/224 (33.48%)	74/224 (33.04%)	-0.45 pp

[MarcZX10]

I checked #9931’s open TCP_NODELAY readback change alongside this PR. The behavior is distinct, but both patch sceNetGetsockopt in Export.cpp and add tests/debt entries to the same libSceNet build/docs. The edits appear composable: this PR adds the SO_PROTOCOL branch and protocol state, while #9931 changes only the TCP_NODELAY output-length path. Please coordinate the landing order or state explicitly that either can land first and ensure a rebase retains both branches, CTest registrations and debt entries. This branch is based on 8aa44cf3; current main is f57ceaad after four intervening commits, so refresh before final validation.

[github-actions]

Some comparisons could not be completed because a pull request conflicts with the base branch. Review these shared files manually before concluding that there is no overlap.

Pull request	Shared files not compared
PR 5836	core/libs/prx/libSceNet/CMakeLists.txt core/libs/prx/libSceNet/Export.cpp docs/dev/debt/libSceNet.md
PR 7201	core/libs/prx/libSceNet/Export.cpp
PR 7490	core/libs/prx/libSceNet/Export.cpp
PR 9231	core/libs/prx/libSceNet/Export.cpp
PR 9357	docs/dev/debt/libSceNet.md
PR 9493	core/libs/prx/libSceNet/Export.cpp
PR 9494	core/libs/prx/libSceNet/Export.cpp docs/dev/debt/libSceNet.md
PR 9506	core/libs/prx/libSceNet/CMakeLists.txt core/libs/prx/libSceNet/Export.cpp docs/dev/debt/libSceNet.md
PR 9515	core/libs/prx/libSceNet/Export.cpp
PR 9578	core/libs/prx/libSceNet/Export.cpp docs/dev/debt/libSceNet.md
PR 9651	docs/dev/debt/libSceNet.md
PR 9715	core/libs/prx/libSceNet/Export.cpp
PR 9727	core/libs/prx/libSceNet/Export.cpp docs/dev/debt/libSceNet.md
PR 9733	core/libs/prx/libSceNet/Export.cpp docs/dev/debt/libSceNet.md
PR 9932	core/libs/prx/libSceNet/Export.cpp docs/dev/debt/libSceNet.md
PR 9948	core/libs/prx/libSceNet/Export.cpp docs/dev/debt/libSceNet.md
PR 10097	docs/dev/debt/libSceNet.md
PR 10187	core/libs/prx/libSceNet/Export.cpp
PR 10502	core/libs/prx/libSceNet/Export.cpp docs/dev/debt/libSceNet.md
PR 10572	core/libs/prx/libSceNet/Export.cpp docs/dev/debt/libSceNet.md
PR 10628	core/libs/prx/libSceNet/Export.cpp docs/dev/debt/libSceNet.md
PR 10629	core/libs/prx/libSceNet/Export.cpp docs/dev/debt/libSceNet.md
PR 10706	core/libs/prx/libSceNet/Export.cpp

[MarcZX10]

One additional overlap surfaced: #9932 adds FIONREAD receive-queue reporting and also edits libSceNet/Export.cpp and docs/dev/debt/libSceNet.md (plus the shared GuestSceNet.cpp test). The behaviors appear independent of this PR’s SO_PROTOCOL path, but please coordinate the order with #9932 and ensure a rebase retains both changes and all test/debt entries. I also noted this in #9932. Your existing #9931 order note remains applicable.

[Queuse]

@MarcZX10 I checked the two heads together (c079a98a41 and fea0994737): the three-way merge is clean, so #9930 and #9931 can land in either order. I've recorded that in both descriptions. The rebase needs to keep both getter branches, test registrations and debt entries. Their existing prerequisites stay in place: #9543 for #9930 and #9542 for #9931.

Both also merge cleanly with main bd1d3994ce. The runtime results are still tied to the heads and base named in Tested; I haven't run the combined code. I'll refresh and rerun the focused test before final validation.

[MarcZX10]

I completed a diff/code pass on the SO_PROTOCOL implementation and its tests. Effective protocol selection and accepted-socket inheritance are recorded, bounded output handles 0/short/full capacities, and the raw-socket behavior stays explicit in debt. I found no code defect in the diff. git diff --check upstream/main...refs/review/9930 and the current-main conventions check both pass.

The branch is 2 commits ahead/48 behind current main caa089fd735d0a5d615279e0f567cb638ad65690 (merge base 1fd6f9bb588f66dfc5f1ed3bda9cb9dda434a27b). No intervening main commit touches its changed paths, but please sync before merge and rerun guest_net_protocol on the final head. Please also finish the three-way order coordination with #9931 and #9932 noted above; current tests are standalone, not a combined-tree run. The author-reported Windows focused test is not a hosted product result.

[MarcZX10]

Reviewed exact head c079a98a411093257bbd88f3fd8f28a836d438ec. Effective/default protocol selection and accepted-socket inheritance are covered, output-size/error behavior is tested, and unsupported raw sockets remain explicit in debt. Current-main diff-check and conventions pass; the branch merges cleanly and no intervening main commit touched the changed paths. The author’s combined Windows + WSL2 integration run reports all 8 focused network tests passing with #9931/#9932 and related prerequisite changes. I did not rerun the C++ tests locally. The documented merge prerequisite #9543 (including #9525), and #8686’s agreed later order, remain; preserve both this and #9931’s getter/test/debt changes through final rebase.