109 Commits

Author	SHA1	Message	Date
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
Ophestra	7b416d47dc	container/ops: merge mqueue and dev Ops ... There is no reason to mount mqueue anywhere else, and these Ops usually follow each other. This change merges them. This helps decrease IPC overhead and also enables mounting dev readonly. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-03 19:13:46 +09:00
Ophestra	15170735ba	container/mount: move tmpfs sysroot prefixing to caller ... The mountTmpfs helper is a relatively low level function that is not exposed as part of the API. Prefixing sysroot here not only introduces overhead but is also quite error-prone. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-03 18:06:41 +09:00
Ophestra	6a3886e9db	container/op: unexport bind resolved source field ... This is used for symlink resolution and is only used internally. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-03 17:57:37 +09:00
Ophestra	ff66296378	container/mount: mount data escape helper function ... For formatting user-supplied path strings into overlayfs mount data. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-03 17:46:14 +09:00
Ophestra	347a79df72	container: improve clone flags readability ... Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-02 18:19:44 +09:00
Ophestra	0f78864a67	container/mount: export mount string constants ... This improves code readability and should also be useful for callers choosing to preserve CAP_SYS_ADMIN. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-02 17:20:09 +09:00
Ophestra	c5d24979f5	container/ops: expose remount as Op ... This is useful for building a filesystem hierarchy then remounting it readonly. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-01 23:48:02 +09:00
Ophestra	1dc780bca7	container/mount: separate remount from bind ... Remount turns out to be useful in other places. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-01 23:32:38 +09:00
Ophestra	547a2adaa4	container/mount: pass tmpfs flags ... Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-01 18:59:06 +09:00
Ophestra	4e85643865	container: implement autoroot as setup op ... This code is useful beyond just pd behaviour, and implementing it this way also reduces IPC overhead. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-01 04:04:36 +09:00
Ophestra	f14e7255be	container/ops: use correct flags value in bind string ... Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-08-01 00:54:08 +09:00
Ophestra	4e518f11d8	container/ops: autoetc implementation to separate file ... This is not a general purpose setup Op. Separate it so it is easier to find. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-07-31 19:54:03 +09:00
Ophestra	940ee00ffe	container/init: configurable lingering process wait delay ... Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-07-29 02:38:17 +09:00
Ophestra	d6b07f12ff	container: forward context cancellation ... This allows container processes to exit gracefully. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-07-28 01:45:38 +09:00
Ophestra	65fe09caf9	container: check cancel signal delivery ... This change also makes some parts of the test more robust. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-07-28 01:04:29 +09:00
Ophestra	a1e5f020f4	container: improve doc comments ... Putting them on the builder methods is more useful. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-07-27 12:27:42 +09:00
Ophestra	bd3fa53a55	container: access test case by index in helper ... This is more elegant and allows for much easier extension of the tests. Mountinfo is still serialised however due to libPaths nondeterminism. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-07-26 18:59:19 +09:00
Ophestra	e71ae3b8c5	container: remove custom cmd initialisation ... This part of the interface is very unintuitive and only used for testing, even in testing it is inelegant and can be done better. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-07-25 00:45:10 +09:00
Ophestra	9d7a19d162	container: use more reliable nonexistence ... Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-07-18 23:18:26 +09:00
Ophestra	749a2779f5	test/sandbox: add arm64 constants ... Most of these are differences in qemu. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-07-09 05:36:35 +09:00
Ophestra	e574042d76	test/sandbox: verify seccomp on all test cases ... This change also makes seccomp hashes cross-platform. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-07-09 04:21:35 +09:00
Ophestra	d90da1c8f5	container/seccomp: add arm64 constants ... Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-07-07 14:58:03 +09:00