Knutwurst
a6d9f939b5
POST handler: cap accumulated body at PATCHDL_POST_MAX_BYTES (64 KiB). A LAN client streaming gigabytes into /api/config would otherwise grow the per-connection buffer until OOM-kill. Past the cap, further chunks are dropped and the final call returns 413. title_pkg_path: the basename comes from the patch_url and ultimately from version.xml via the Sony CDN. A poisoned manifest with a basename like ".." or one containing delimiters would compose a dest path that escapes /data/patchdl/<tid>/. Validate the basename through path_segment_safe and fall back to "<title_id>.pkg" on rejection. cleanup_installed_download now routes through the same helper instead of doing its own basename extraction. ai_install_by_package's playgo struct is 0x2700 bytes — comfortably fine on its own, but on the MHD worker stack alongside meta/pkg/uris buffers and Sony's own frame use it leaves little headroom. Move it to the heap in both patchdl_install_local_pkg and patchdl_install_by_uri.
PatchDL
A standalone PlayStation 5 ELF payload that downloads and installs official game patches on your terms. It serves its own dark-mode web UI and runs without etaHEN.
PatchDL is built for setups where nanoDNS blocks Sony's servers for the whole console. It resolves the Sony patch CDN on its own DNS path, so the rest of the system stays offline and only the patches you pick get fetched.
by Knutwurst
What it does
- Scans installed titles and classifies each: genuine install, ShadowMountPlus mount, preinstall, or unknown.
- Reads the title name, installed version, and Sony
version.xmlURL from the PS5 app database. - Fetches each title's
version.xmlpast nanoDNS (a raw DNS query to 1.1.1.1) and verifies TLS against the pinned SCEI DNAS root. - Picks the newest patch compatible with the current firmware
(
system_ver <= firmware), so an update never forces a firmware upgrade. - Downloads the patch from Sony's manifest pieces into one local
.pkg, then installs it through Sony's AppInstUtil service.
Downloading
PatchDL pulls each patch over a pool of connections instead of one stream, which lifts the ~7 MB/s per-connection ceiling on the Sony CDN. Set the connection count (1 to 16) in Settings with the stepper; the change applies live, with no payload restart. One patch downloads at a time and further requests queue.
Downloads survive interruptions:
- Resume across a reboot. PatchDL records progress per manifest piece in a
sidecar beside the
.pkg, written after every completed piece, so a reboot or relaunch continues where it stopped. - Pause, Resume, Cancel. Pause keeps the partial file, Resume continues it, Cancel deletes it. All three work at any point in a download.
- Verification. Turn on "Verify downloaded pieces (SHA-256)" to check each
piece against its manifest hash while downloading. After a download you can
also verify the assembled package on-device against Sony's per-piece hashes
(
GET /api/pkgverify/<title_id>).
Patches download to /data/patchdl on the internal SSD. Large retail updates
run tens of GB.
Safety model
Deny-by-default. A patch installs only for a genuine install, and only when the patch metadata targets the installed game:
| Source | Check | Download | Install |
|---|---|---|---|
| official | yes | yes | yes |
| shadowmount | yes | yes | no |
| preinstall / unknown | yes | no | no |
Two guards stop the wrong target being installed: the patch target id (from
version.xml / manifest_url) must match the installed game, and the install
call receives the installed game's content id from app.db. PatchDL refuses a
true target-title mismatch rather than installing a phantom title.
All writes stay under /data/patchdl. PatchDL never writes to the system
partition and never touches firmware.
Settings
Settings persist to /data/patchdl/config.json and survive a restart:
- Default policy (allow or deny) and a per-game enable toggle.
- Install after download, as a global default with a per-game override.
- Delete the PKG after a successful install.
- Verify downloaded pieces (SHA-256).
- Parallel download connections (1 to 16), applied live.
Build
Requires ps5-payload-dev/sdk. The network and install features need the
prebuilt libcurl + OpenSSL from ps5-payload-dev/pacbrew-repo in the SDK sysroot
(target/user/homebrew); scripts/build_ps5.sh enables them when present.
libmicrohttpd is vendored under vendor/etahen, SQLite under vendor/sqlite.
scripts/build_ps5.sh # produces patchdl-ps5.elf
Deploy
This console uses the BD-JB autoloader with itsPLK's Payload Manager on port 8084
(not a 9021 elfldr). scripts/deploy_ps5.sh uploads the version-named ELF and
launches it; the payload replaces any running instance.
PS5_HOST=<console-ip> scripts/deploy_ps5.sh
On start it shows an on-screen notification with the URL. Open the web UI at:
http://<console-ip>:12880/
Status
Verified on firmware 11.60: title scan, source classification, version resolution past the nanoDNS block, firmware-compatibility filtering, the parallel download pool, reboot-safe resume, and on-device SHA-256 verification. A full Dead Island 2 update (61.6 GB) downloaded and verified byte-perfect across several reboots.
Install works for same-region patches, where Sony stores the patch bytes under
the installed game's own title id. PatchDL now mirrors etaHEN's native
DirectPKGInstaller call shape for that path: it passes an empty
MetaInfo.content_id, lets AppInstUtil bind the signed package metadata, keeps
the returned content id, and exposes /api/installstatus for installer progress
when sceAppInstUtilGetInstallStatus is exported.
Cross-region patches are a known limitation. Sony sometimes packages a regional
patch under a different (master) storage title and ships it as a debug-magic
container. PatchDL downloads such a patch and verifies it against Sony's hashes,
but refuses to install it from the standalone ELF because InstallByPackage
does not retarget signed package metadata on 11.60, and the homebrew alternative
(BGFT register) returns "not supported" outside the system process. Installing
that class of patch needs Sony's authenticated updater, which nanoDNS blocks.
Disc games need the disc inserted for their patch to apply, which is a normal
Sony requirement.