Commit Graph

114 Commits

Author SHA1 Message Date
e0f321b2c4
sys: rename from linux
Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-02-18 18:47:48 +09:00
2c9c7fee5b
linux: wrap fsu lookup error
Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-02-18 17:39:53 +09:00
90cb01b274
system: move out of internal
Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-02-17 19:00:43 +09:00
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
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
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
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
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
33a4ab11c2
internal: move shim and init into app
This structure makes more sense, as both processes are part of an app's lifecycle.

Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-02-16 16:28:46 +09:00
268a90f1a5
app: improve WAYLAND_DISPLAY correctness
This now has identical behaviour as wayland C library.

Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-02-15 14:45:09 +09:00
ddb2f9c11b
app: remove wayland socket hard link
This Op was not doing anything useful.

Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-02-15 10:54:00 +09:00
0340c67995
app: port passwd and group files to copy
Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-02-15 03:19:06 +09:00
ea8d1c07df
priv/shim: move /sbin/init setup to app
Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-02-15 03:06:10 +09:00
e431ab3c24
app: check username length against LOGIN_NAME_MAX
This limit is arbitrary, but it's good to enforce it anyway.

Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-02-14 12:44:55 +09:00
fe7d208cf7
helper: use generic extra files interface
This replaces the pipes object and integrates context into helper process lifecycle.

Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-02-13 23:34:15 +09:00
e14923ae53
helper/proc: move package out of internal
Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-02-08 13:03:45 +09:00
2e52191404
system/dbus: dump method prints msgbuf
Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-02-07 13:16:54 +09:00
23e1152baa
app/share: clean BaseError message
This removes trailing '\n' in the PulseAudio warning.

Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-01-22 11:54:16 +09:00
9a239fa1a5
helper/bwrap: integrate seccomp into helper interface
This makes API usage much cleaner, and encapsulates all bwrap arguments in argsWt.

Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-01-22 01:52:57 +09:00
dfcdc5ce20
state: store config in separate gob stream
This enables early serialisation of config.

Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-01-21 12:10:58 +09:00
27f5922d5c
fst: include syscall filter configuration
This value is passed through to shim.

Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-01-20 21:12:39 +09:00
2f70506865
helper/bwrap: move sync to helper state
Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-01-19 18:38:13 +09:00
cae567c109
proc/priv/shim: remove unnecessary state
These values are only used during process creation.

Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-01-19 18:09:07 +09:00
ea8f228af3
proc/priv/shim: merge shim into main program
Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-01-17 23:43:32 +09:00
124743ffd3
app: expose single run method
App is no longer just a simple [exec.Cmd] wrapper, so exposing these steps separately no longer makes sense and actually hinders proper error handling, cleanup and cancellation. This change removes the five-second wait when the shim dies before receiving the payload, and provides caller the ability to gracefully stop execution of the confined process.

Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-01-15 23:39:51 +09:00
562f5ed797
fst: hide sockets exposed via Filesystem
This is mostly useful for permissive defaults.

Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-01-15 10:13:18 +09:00
c4d6651cae
update reverse-DNS style identifiers
Signed-off-by: Ophestra <cat@gensokyo.uk>
2024-12-31 16:16:38 +09:00
9b206072fa
cmd/fshim: ensure data directory
Ensuring home directory in shim causes the directory to be owned by the target user.

Signed-off-by: Ophestra <cat@gensokyo.uk>
2024-12-28 14:39:01 +09:00
b9e2003d5b
app: ensure extra paths
The primary use case for extra perms is app-specific state directories, which may or may not exist (first run of any app).

Signed-off-by: Ophestra <cat@gensokyo.uk>
2024-12-28 14:07:49 +09:00
847b667489
app: extra acl entries from configuration
Signed-off-by: Ophestra <cat@gensokyo.uk>
2024-12-28 13:23:27 +09:00
0107620d8c
app: merge share methods
This significantly increases readability and makes order of ops more obvious.

Signed-off-by: Ophestra <cat@gensokyo.uk>
2024-12-28 11:12:35 +09:00
f608f28a6a
app: mount /dev/kvm in permissive defaults
Signed-off-by: Ophestra <cat@gensokyo.uk>
2024-12-22 12:37:24 +09:00
7a8b625a57
app: rename /fortify to /.fortify
Also removed the inner share tmpfs mount.

Signed-off-by: Ophestra <cat@gensokyo.uk>
2024-12-21 18:11:32 +09:00
74fe74e6b5
app: do not fail on missing cookie
Signed-off-by: Ophestra <cat@gensokyo.uk>
2024-12-21 17:56:21 +09:00
df6fc298f6
migrate to git.gensokyo.uk/security/fortify
Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
2024-12-20 00:20:02 +09:00
eae3034260
state: expose aids and use instance id as key
Fortify state store instances was specific to aids due to outdated design decisions carried over from the ego rewrite. That no longer makes sense in the current application, so the interface now enables a single store object to manage all transient state.

Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
2024-12-19 21:36:17 +09:00
52f21a19f3
cmd/fshim: switch to setup pipe
The socket-based approach is no longer necessary as fsu allows extra files and sudo compatibility is no longer relevant.

Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
2024-12-18 19:39:25 +09:00
2f676c9d6e
fst: rename from fipc
Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
2024-12-18 15:50:46 +09:00
b752ec4468
fipc: export config struct
Also store full config as part of state.

Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
2024-12-18 13:45:55 +09:00
b3ef53b193
app: integrate security-context-v1
Should be able to get rid of XDG_RUNTIME_DIR share after this.

Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
2024-12-06 04:25:33 +09:00
b291f0b710
app: add nixos-based config test case
Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
2024-11-21 12:13:21 +09:00
9faf3b3596
app: validate username
This value is used for passwd generation. Bad input can cause very confusing issues. This is not a security issue, however validation will improve user experience.

Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
2024-11-19 21:01:41 +09:00
ae2628e57a
cmd/fshim/ipc: install signal handler on shim start
Getting killed at this point will result in inconsistent state.

Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
2024-11-18 13:33:46 +09:00
05b7dbf066
app: alternative inner home path
Support binding home to an alternative path in the mount namespace.

Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
2024-11-18 00:18:21 +09:00
c1fad649e8
app/start: check for cleanup and abort condition
Dirty fix. Will rewrite after fsu integration complete.

Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
2024-11-17 23:41:52 +09:00
b5f01ef20b
app: append # for ChangeHosts message with numerical uid
Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
2024-11-17 23:40:37 +09:00
df33123bd7
app: integrate fsu
This removes the dependency on external user switchers like sudo/machinectl and decouples fortify user ids from the passwd database.

Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
2024-11-16 21:19:45 +09:00
9a13b311ac
app/config: rename map_real_uid from use_real_uid
This option only changes mapped uid in the user namespace.

Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
2024-11-09 12:01:34 +09:00
3dfc1fcd56
app: support full /dev access
Also moved /dev/fortify to /fortify since it is impossible to create new directories in /dev from the init namespace and bind mounting its contents has undesirable side effects.

Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
2024-11-06 03:49:39 +09:00
69cc64ef56
linux: provide access to stdout
Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
2024-11-04 22:55:46 +09:00