UltradesuandClaude Opus 4.8
63178574ce
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Reworks the Linux packaging so the service runs as an unprivileged, dedicated "tsunagi" user instead of root — the point of a native package is to set things up properly for that OS's users — and adds Arch Linux packages beside the deb. Both package families are built from the already-compiled static binary; nothing is recompiled. Service model (shared systemd unit, dist/linux/tsunagi.service): - User=tsunagi with AmbientCapabilities=CAP_NET_ADMIN CAP_NET_BIND_SERVICE, so it creates the TUN and binds low ports without root. - StateDirectory/CacheDirectory/RuntimeDirectory give it /var/lib/tsunagi, /var/cache/tsunagi and /run/tsunagi, and the agent is pointed at them (and the socket at /run/tsunagi/agent.sock) through TSUNAGI_* env in the unit. - The polkit rule now grants the resolve1 actions to the "tsunagi" group; the service user is in it, and admins can add themselves. CLI: when no state dir is chosen, the control commands prefer the system service's socket at /run/tsunagi/agent.sock when it exists, so `sudo tsunagi status`/`join` reach the packaged daemon with no flags. A per-user agent (its socket absent from /run) still uses its own. Packaging: - deb (build-deb.sh): postinst now creates the tsunagi system user+group; unit installed to /lib/systemd/system, binary to /usr/bin. - Arch (new dist/arch/build-pkg.sh): a dependency-free .pkg.tar.zst assembled with bsdtar + zstd (no makepkg, no Arch host) — .PKGINFO, a .INSTALL scriptlet that creates the user and reloads systemd, and a gzipped .MTREE; unit to /usr/lib/systemd/system. - The polkit rule moved to dist/linux (shared by deb, Arch and the tarball), and the tarball install.sh now creates the user and installs the unit + rule. - Both release workflows build the deb and the Arch package on the two Linux matrix entries (deb_arch/pkg_arch), install libarchive-tools+zstd for it, and attach both to the release (Gitea API loop / gh). Not exercised in this session: the .deb and .pkg.tar.zst build and install only on Linux (no dpkg-deb/bsdtar+pacman locally); CLI build, clippy, fmt and tests pass, and all shell/YAML is syntax-checked. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
24 lines
936 B
Plaintext
24 lines
936 B
Plaintext
// Installed by the tsunagi packages.
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//
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// polkit decides who may configure systemd-resolved by user/group id, not by
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// capability, so the agent needs this even though it holds CAP_NET_ADMIN. It
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// grants exactly the four resolve1 actions the agent calls, and nothing else,
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// to anyone in the "tsunagi" group.
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//
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// The packaged service runs as the "tsunagi" user (which is in that group), so
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// its resolver configuration is allowed. To also run the agent as your own
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// user, add yourself to the group:
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//
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// sudo usermod -aG tsunagi "$USER"
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polkit.addRule(function(action, subject) {
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var allowed = [
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"org.freedesktop.resolve1.set-dns-servers",
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"org.freedesktop.resolve1.set-domains",
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"org.freedesktop.resolve1.set-default-route",
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"org.freedesktop.resolve1.revert"
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];
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if (allowed.indexOf(action.id) >= 0 && subject.isInGroup("tsunagi")) {
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return polkit.Result.YES;
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}
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});
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