81 Commits

Author	SHA1	Message	Date
Ophestra	1c692bfb79	container/init: call lockOSThread through dispatcher ... This degrades test performance if not stubbed out. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-22 22:24:14 +09:00
Ophestra	141a18999f	container: move integration test helpers ... With the new instrumentation it is now possible to run init code outside integration tests. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-22 22:07:19 +09:00
Ophestra	afe23600d2	container/path: use syscall dispatcher ... This allows path and mount functions to be instrumented. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-22 22:02:21 +09:00
Ophestra	09d2844981	container/init: wrap syscall helper functions ... This allows tests to stub all kernel behaviour, enabling measurement of all function call arguments and error injection. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-22 19:27:31 +09:00
Ophestra	5b73316ae0	container/syscall: doc comments from manpages ... These are pulled straight from the manpages. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-21 00:33:46 +09:00
Ophestra	5d8a2199b6	container/init: op interface valid method ... Check ops early and eliminate duplicate checks. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-21 00:18:50 +09:00
Ophestra	a1482ecdd0	container/inittmpfs: check path equivalence by value ... Fixes regression introduced while integrating Absolute. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-20 20:17:28 +09:00
Ophestra	a07f9ed84c	container/initsymlink: check path equivalence by value ... Fixes regression introduced while integrating Absolute. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-20 20:03:02 +09:00
Ophestra	51304b03af	container/initremount: check path equivalence by value ... Fixes regression introduced while integrating Absolute. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-20 19:55:51 +09:00
Ophestra	c6397b941f	container/initproc: check path equivalence by value ... Fixes regression introduced while integrating Absolute. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-20 19:29:45 +09:00
Ophestra	d65e5f817a	container/initplace: check path equivalence by value ... Fixes regression introduced while integrating Absolute. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-20 19:19:27 +09:00
Ophestra	696e593898	container/initoverlay: check path equivalence by value ... Fixes regression introduced while integrating Absolute. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-20 17:33:15 +09:00
Ophestra	97ab24feef	container/init: use absolute compare method ... More checks are also added. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-20 17:14:36 +09:00
Ophestra	31f0dd36df	absolute: efficient equivalence check method ... This is more efficient and makes the call site cleaner. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-20 17:06:38 +09:00
Ophestra	9aec2f46fe	container/initdev: check path equivalence by value ... Fixes regression introduced while integrating Absolute. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-20 02:55:45 +09:00
Ophestra	022cc26b2e	container/capability: check CAP_TO_INDEX and CAP_TO_MASK ... Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-20 02:45:00 +09:00
Ophestra	b4c018da8f	container/autoetc: do not bypass absolute check ... This can now be done cleanly via path function wrappers. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-20 02:37:11 +09:00
Ophestra	66f52407d3	container/initmkdir: check path equivalence by value ... Fixes regression introduced while integrating Absolute. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-20 02:32:22 +09:00
Ophestra	e463faf649	container/initbind: check path equivalence by value ... Same problem as autoroot, never updated the checks after integrating Absolute. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-20 02:22:04 +09:00
Ophestra	375acb476d	container/autoroot: check host path equivalence by value ... This will never return true otherwise unless the equivalent paths happen to be interned by the caller. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-20 02:14:39 +09:00
Ophestra	c81c9a9d75	container/init: split setup ops into individual files ... This significantly increases readability. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-20 01:28:31 +09:00
Ophestra	339e4080dc	container/ops: move Op type to init file ... This helps with the eventual separation of all setup ops into individual files. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-20 01:11:24 +09:00
Ophestra	e0533aaa68	container/autoroot: filter dentry with empty name ... This is unreachable, but nice to have just in case. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-20 01:03:49 +09:00
Ophestra	13c7083bc0	container: ptrace protection via Yama LSM ... This is only a nice to have feature as the init process has no additional privileges and the monitor process was never reachable anyway. Closes #4. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-20 00:43:55 +09:00
Ophestra	140fe21237	container/params: check setup/receive behaviour ... Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-18 22:30:34 +09:00
Ophestra	f52d2c7db6	container/path: check create and mountinfo helpers ... These can quite easily be checked within the framework. The scanner fault injection might require updating at some point if the implementation changes. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-18 21:30:28 +09:00
Clayton Gilmer	5db0714072	container: optionally isolate host abstract UNIX domain sockets via landlock	2025-08-18 16:28:14 +09:00
Ophestra	69a4ab8105	container: move PR_SET_NO_NEW_PRIVS to parent ... This allows some LSM setup in the parent. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-18 11:46:02 +09:00
Ophestra	0ac6e99818	container: start from locked thread ... This allows setup that relies on per-thread state like securebits and landlock, from the parent side. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-17 17:42:22 +09:00
Ophestra	f35733810e	container: check output helper functions ... The container test suite has always been somewhat inadequate due to the inability of coverage tooling to reach into containers. This has become an excuse for not testing non-container code as well, which lead to the general lack of confidence when working with container code. This change aims to be one of many to address that to some extent. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-17 02:59:37 +09:00
Ophestra	9c1a5d43ba	container: enforce nonrepeatable autoetc and autoroot ... These keep track of some internal state, and they don't make sense to have multiple instances of anyway, so instead of dealing with that, just make them nonrepetable. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-17 01:43:11 +09:00
Ophestra	8aa65f28c6	container: allow additional state between ops ... This is useful for ops that need to be aware of previous instances of themselves. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-17 01:32:07 +09:00
Ophestra	ba3227bf15	container: export overlay escape ... Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-14 23:44:11 +09:00
Ophestra	332d90d6c7	container/path: remove unused path ... Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-14 05:00:09 +09:00
Ophestra	e99d7affb0	container: use absolute for pathname ... This is simultaneously more efficient and less error-prone. This change caused minor API changes in multiple other packages. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-11 04:56:42 +09:00
Ophestra	41ac2be965	container/absolute: wrap safe stdlib functions ... These functions do not change the absoluteness of a pathname. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-10 03:11:10 +09:00
Ophestra	02271583fb	container: remove PATH lookup behaviour ... This is way higher level than the container package and does not even work unless every path is mounted in the exact same location. This behaviour causes nothing but confusion and problems, Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-09 19:08:54 +09:00
Ophestra	ef54b2cd08	container/absolute: early absolute pathname check ... This is less error-prone, and allows pathname to be checked once. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-09 18:53:46 +09:00
Ophestra	82608164f6	container/params: remove confusingly named error ... Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-09 17:37:46 +09:00
Ophestra	edd6f2cfa9	container: document ambient capabilities ... Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-08 02:11:55 +09:00
Ophestra	acffa76812	container/ops: implement overlay op ... There are significant limitations to using the overlay mount, and the implementation in the kernel is quite quirky. For now the Op is quite robust, however a higher level interface for it has not been decided yet. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-08 01:54:48 +09:00
Ophestra	8da76483e6	container/path: fix typo "paths" ... Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-08 01:32:48 +09:00
Ophestra	534c932906	container: test case runtime initialisation ... This allows for more sophisticated test setup. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-08 01:03:35 +09:00
Ophestra	fee10fed4d	container: test bypass output buffer on verbose ... This restores verbose behaviour. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-08 00:57:27 +09:00
Ophestra	f1a53d6116	container: raise CAP_DAC_OVERRIDE ... This is required for upperdir and workdir checks in overlayfs. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-08 00:43:19 +09:00
Ophestra	fde5f1ca64	container: buffer test output ... This further reduces noise on test failure by only passing through output of the failed test. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-07 02:55:58 +09:00
Ophestra	4d0bdd84b5	container: test respect verbose flag ... This reduces noise on test failure. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-07 02:50:00 +09:00
Ophestra	9a25542c6d	container/init: use mount string constants ... These literals were missed when the constants were first defined. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-04 04:00:05 +09:00
Ophestra	c6be82bcf9	container/path: fhs path constants ... This increases readability since this can help disambiguate absolute paths from similarly named path segments. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-03 21:16:45 +09:00
Ophestra	38245559dc	container/ops: mount dev readonly ... There is usually no good reason to write to /dev. This however doesn't work in internal/app because FilesystemConfig supplied by ContainerConfig might add entries to /dev, so internal/app follows DevWritable with Remount instead. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-03 19:18:53 +09:00