13 Commits

Author	SHA1	Message	Date
Ophestra	e7982b4ee9	cmd/sharefs: create directory as root ... This optional behaviour is required on NixOS as it is otherwise impossible to set this up: systemd.mounts breaks startup order somehow even though my unit looks identical to generated ones, fileSystems does not support any kind of initialisation or ordering other than against other mount points. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-12-27 22:14:33 +09:00
Ophestra	ef1ebf12d9	cmd/sharefs: handle mount -t fuse.sharefs ... This should have been handled in a custom option parsing function, but that much extra complexity is unnecessary for this edge case. Honestly I do not know why libfuse does not handle this itself. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-12-27 20:49:27 +09:00
Ophestra	775a9f57c9	cmd/sharefs: check option parsing behaviour ... This change makes it possible to check parseOpts behaviour as part of Go tests. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-12-27 17:33:12 +09:00
Ophestra	2f8ca83376	cmd/sharefs: containerise filesystem daemon ... This replaces the forking daemonise libfuse function which prevents Go callbacks from calling into the runtime. This also enforces least privilege on the daemon process. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-12-27 10:16:35 +09:00
Ophestra	2e5362e536	cmd/sharefs: opaque setup state ... This allows unrestricted use of the type system and prepares setup code for cross-process initialisation. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-12-27 04:14:00 +09:00
Ophestra	6d3bd27220	cmd/sharefs: expand fuse_main ... This change should not change behaviour other than making output more consistent. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-12-27 02:30:28 +09:00
Ophestra	a27305cb4a	cmd/sharefs: improve help message ... This improves consistency with the fuse_main help message. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-12-27 02:20:41 +09:00
Ophestra	0e476c5e5b	cmd/sharefs: allocate sharefs_private early ... This also removes global state used by sharefs_init. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-12-26 08:08:41 +09:00
Ophestra	b77c1ecfdb	cmd/sharefs/test: check option handling ... This verifies behaviour related to setuid/setgid when starting as root. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-12-26 05:28:45 +09:00
Ophestra	d597592e1f	cmd/sharefs: rename fuse-helper to fuse-operations ... This is not really just library wrapper functions, but instead implements the callbacks, so fuse-operations makes more sense. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-12-26 03:19:32 +09:00
Ophestra	056f5b12d4	cmd/sharefs: move translate_pathname body to macro wrapper ... This is never called directly anywhere and it is simple enough to be included in the macro. This avoids passing the pointer around and dereferencing errno location, resulting in over 5% increase in throughput on the clang build. No change in the gcc build though. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-12-26 02:10:59 +09:00
Ophestra	da2bb546ba	cmd/sharefs: remove readlink ... This filesystem does not support symbolic links, so readlink is not useful, and unreachable in this case because of the check in getattr. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-12-25 06:00:58 +09:00
Ophestra	7bfbd59810	cmd/sharefs: implement shared filesystem ... This is for passing files between applications, similar to android /sdcard. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-12-25 05:13:02 +09:00