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Commit Graph

156 Commits

Author SHA1 Message Date
cat e9a7cd526f app: improve shim process management
This ensures a signal gets delivered to the process instead of relying on parent death behaviour.

SIGCONT was chosen as it is the only signal an unprivileged process is allowed to send to processes with different credentials.

A custom signal handler is installed because the Go runtime does not expose signal information other than which signal was received, and shim must check pid to ensure reasonable behaviour.

Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-04-07 03:55:17 +09:00
cat 022242a84a app: wayland socket in process share
Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-04-01 00:53:04 +09:00
cat 8aeb06f53c app: share path setup on demand
This removes the unnecessary creation and destruction of share paths when none of the enablements making use of them are set.

Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-04-01 00:47:32 +09:00
cat 4036da3b5c fst: optional configured shell path
Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-03-31 21:27:31 +09:00
cat 605d018be2 app/seal: check for '=' in envv
Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-03-27 18:25:23 +09:00
cat 300571af47 app: pass through $SHELL
Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-03-27 01:22:40 +09:00
cat 2dd49c437c app: create XDG_RUNTIME_DIR with perm 0700
Many programs complain about this.

Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-03-26 02:49:37 +09:00
cat c326c3f97d fst/sandbox: do not create /etc in advance
This is now handled by the setup op. This also gets rid of the hardcoded /etc path.

Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-03-25 20:00:34 +09:00
cat 61dbfeffe7 sandbox/wl: move into sandbox
Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-03-25 05:26:37 +09:00
cat 532feb4bfa app: merge shim into app package
Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-03-25 05:21:47 +09:00
cat ec5e91b8c9 system: optimise string formatting
Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-03-25 04:42:30 +09:00
cat 5c4058d5ac app: run in native sandbox
Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-03-25 01:52:49 +09:00
cat 7c063833e0 internal/sys: wrap getuid/getgid
Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-03-17 17:10:03 +09:00
cat 24618ab9a1 sandbox: move out of internal
Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-03-17 02:55:36 +09:00
cat 9ce4706a07 sandbox: move params setup functions
Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-03-17 02:48:32 +09:00
cat 9a1f8e129f sandbox: wrap fmsg interface
Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-03-17 02:44:07 +09:00
cat ee10860357 seccomp: install output atomically
Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-03-17 01:10:27 +09:00
cat 10a21ce3ef helper: expose extra files to direct
Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-03-15 02:27:40 +09:00
cat f9bf20a3c7 helper: rearrange initialisation args
This improves consistency across two different helper implementations.

Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-03-15 01:06:31 +09:00
cat f443d315ad helper: clean up interface
The helper interface was messy due to odd context acquisition order. That has changed, so this cleans it up.

Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-03-15 00:27:44 +09:00
cat 2647a71be1 seccomp: move out of helper
Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-03-14 22:42:40 +09:00
cat 7c60a4d8e8 helper: embed context on creation
Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-03-14 18:30:22 +09:00
cat 4133b555ba internal/app: rename init to init0
This makes way for the new container init.

Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-03-13 21:57:54 +09:00
cat 61e58aa14d helper/proc: expose setup file
Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-03-09 17:22:31 +09:00
cat 9e15898c8f internal/prctl: rename prctl wrappers
Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-03-07 22:56:35 +09:00
cat 80f9b62d25 app: print comp values early
Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-02-26 22:27:55 +09:00
cat 673b648bd3 cmd/fpkg: call app in-process
Wrapping fortify is slow, painful and error-prone. Start apps in-process instead.

Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-02-26 19:51:44 +09:00
cat 840ceb615a app: handle RunState errors
Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-02-26 17:36:14 +09:00
cat d050b3de25 app: define errors in a separate file
Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-02-26 17:12:02 +09:00
cat 39dc8e7bd8 dbus: set process group id
This stops signals sent by the TTY driver from propagating to the xdg-dbus-proxy process.

Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-02-25 18:12:41 +09:00
cat f0a082ec84 fortify: improve handling of RevertErr
All this error wrapping is getting a bit ridiculous and I might want to do something about that somewhere down the line.

Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-02-25 00:45:00 +09:00
cat c64b8163e7 app: separate instance from process state
This works better for the implementation.

Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-02-21 16:06:24 +09:00
cat 3c80fd2b0f app: defer system.I revert
Just returning an error after a successful call of commit will leave garbage behind with no way for the caller to clean them. This change ensures revert is always called after successful commit with at least per-process state enabled.

Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-02-19 21:12:11 +09:00
cat ef81828e0c app: remove share method
This is yet another implementation detail from before system.I, getting rid of this vastly cuts down on redundant seal state.

Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-02-19 16:20:25 +09:00
cat 2978a6f046 app: separate appSeal finalise method
Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-02-19 12:33:51 +09:00
cat dfd9467523 app: merge seal with sys
The existence of the appSealSys struct was an implementation detail obsolete since system.I was integrated in 084cd84f36.

Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-02-19 01:36:29 +09:00
cat 53571f030e app: embed appSeal in app struct
Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-02-19 01:10:37 +09:00
cat aa164081e1 app/seal: improve documentation
Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-02-19 01:04:14 +09:00
cat 9a10eeab90 app/seal: embed enablements
Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-02-19 00:41:51 +09:00
cat a748d40745 app: store values with string representation
Improves code readability without changing memory layout.

Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-02-19 00:25:00 +09:00
cat 648e1d641a app: separate interface from implementation
Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-02-18 23:07:28 +09:00
cat ffaa12b9d8 sys: wrap log methods
Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-02-18 22:52:09 +09:00
cat e0f321b2c4 sys: rename from linux
Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-02-18 18:47:48 +09:00
cat 2c9c7fee5b linux: wrap fsu lookup error
Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-02-18 17:39:53 +09:00
cat 90cb01b274 system: move out of internal
Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-02-17 19:00:43 +09:00
cat b1e1d5627e system: wrap console output functions
This eliminates all fmsg imports from internal/system.

Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-02-17 18:17:55 +09:00
cat 3ae2ab652e system/wayland: sync file at caller specified address
Storing this in sys is incredibly ugly: sys should be stateless and Ops must keep track of their state.

Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-02-17 13:24:17 +09:00
cat 82a072f641 system/tmpfiles: implement private tmpfiles
These are only available within the mount namespace and should significantly reduce attack surface.

Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-02-17 00:07:52 +09:00
cat 29c38caac8 app/shim/manager: return error on bad fsu path
This results in a graceful failure that does not leave garbage behind.

Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-02-16 18:59:45 +09:00
cat e599b5583d fmsg: implement suspend in writer
This removes the requirement to call fmsg.Exit on every exit path, and enables direct use of the "log" package. However, fmsg.BeforeExit is still encouraged when possible to catch exit on suspended output.

Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-02-16 18:51:53 +09:00