114 Commits

Author	SHA1	Message	Date
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
cat	1fa5e992e4	helper/bwrap: expose address of DataConfig ... This allows the caller to defer fulfilling its payload. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-02-16 12:33:59 +09:00
cat	72b0160aad	helper/bwrap: implement file copy flags ... These are significantly more efficient and less error-prone than mounting an external tmpfile. This should also reduce attack surface as the resulting files are private to its specific sandbox. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-02-15 03:13:15 +09:00
cat	be7d944b39	helper/bwrap: PositionalArg implement fmt.Stringer ... Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-02-15 00:11:48 +09:00
cat	ace97952cc	helper/bwrap: merge Args and FDArgs ... Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-02-14 18:13:06 +09:00
cat	88040504b2	helper/bwrap: remove fmsg import ... Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-02-14 18:05:00 +09:00
cat	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
cat	60c2873750	helper/proc: cancel ec on parent ctx ... This allows errors written during a timeout to be received and handled. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-02-13 23:08:28 +09:00
cat	d1d20c06fb	helper/seccomp: use sync.Once for closeWrite ... This makes the code much cleaner, and eliminates the intermittent ErrInvalid errors. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-02-13 22:49:16 +09:00
cat	1e6a059668	helper/seccomp: benchmark exporter ... Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-02-13 22:37:51 +09:00
cat	58eb8f971d	proc/pipe: implement args and stat file ... This is a generic implementation of helper/pipe. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-02-13 19:57:24 +09:00
cat	0a1d7c01cd	helper/proc: count dispatched errs ... This helps debug implementation errors of [proc.File]. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-02-13 19:55:37 +09:00
cat	60ca1c6c55	helper/proc: store file addresses in linked list ... Storing extra files as a slice requires the caller to allocate a large enough slice before initialising any file and never grow the slice. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-02-13 17:42:12 +09:00
cat	099da78af5	helper/seccomp: eliminate data race on pfd ... Turns out the doc comment on os.File was lying about its methods being safe for concurrent use. The race detector picked up a data race from concurrent use of Fd and Close. This change eliminates that by calling Fd in the prepare routine. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-02-13 10:40:51 +09:00
cat	18466cfd02	helper/proc: declare generic extra files interface ... Helpers use extra files for various purposes. This provides a generic interface for implementing the fulfillment of these extra files without having to specifically handle them in the process creation code. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-02-11 16:34:47 +09:00
cat	e14923ae53	helper/proc: move package out of internal ... Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-02-08 13:03:45 +09:00
cat	568d7758d5	helper/seccomp: panic on invalid closeWrite use ... Returning an error here puts exporter in an invalid state. The caller should guard against this condition instead. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-02-07 12:58:20 +09:00
cat	5b7b3fa9a4	helper/seccomp: implement reader interface via pipe ... This also does not require the libc tmpfile call. BPF programs emitted by libseccomp seems to be deterministic. The tests would catch regressions as it verifies the program against known good output backed by manual testing. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-02-03 19:43:03 +09:00
cat	7b96cd6ded	helper/seccomp: do not call F_println if not verbose ... This (slightly) improves performance. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-01-25 13:19:38 +09:00
cat	163f15e93f	helper/seccomp: separate seccomp package ... Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-01-25 12:59:11 +09:00
cat	37780456a7	helper: block more unusual/privileged syscalls ... These are toggled by F_EXT and exposed as SyscallPolicy.Compat in the Go interface. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-01-25 12:35:47 +09:00
cat	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
cat	eb0ef2d115	helper/bwrap: generic extra file interface ... Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-01-20 00:20:04 +09:00
cat	2f70506865	helper/bwrap: move sync to helper state ... Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-01-19 18:38:13 +09:00
cat	715addaccd	helper/bwrap: append --sync-fd before -- ... Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-01-18 12:30:03 +09:00
cat	3e11ce6868	helper/bwrap: separate sequential/static args ... Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-01-15 13:07:06 +09:00
cat	7d99e45b88	helper/bwrap: register OverlayConfig with gob ... This is required for copying bwrap configurations across processes. Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-01-14 12:25:10 +09:00
cat	e2489059c1	helper/bwrap: implement overlayfs builder ... Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-01-05 20:09:35 +09:00
cat	2e3f6a4c51	helper/bwrap: move test out of bwrap package ... Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-01-05 19:45:24 +09:00
cat	2162029f46	helper/bwrap: add json struct tag to filesystem ... Signed-off-by: Ophestra <cat@gensokyo.uk>	2025-01-05 19:41:04 +09:00
cat	aef847b5ae	helper/bwrap: fix typo in --dir config builder ... Signed-off-by: Ophestra <cat@gensokyo.uk>	2024-12-27 15:34:43 +09:00
cat	df6fc298f6	migrate to git.gensokyo.uk/security/fortify ... Signed-off-by: Ophestra Umiker <cat@ophivana.moe>	2024-12-20 00:20:02 +09:00
cat	cc816a1aaa	proc: cleaner extra files ... Signed-off-by: Ophestra Umiker <cat@ophivana.moe>	2024-12-06 16:05:04 +09:00
cat	8d0573405a	helper/bwrap: implement sync fd ... This is required by wayland security-context-v1. Signed-off-by: Ophestra Umiker <cat@ophivana.moe>	2024-12-06 04:21:37 +09:00
cat	4b7b899bb3	add package doc comments ... Signed-off-by: Ophestra Umiker <cat@ophivana.moe>	2024-10-28 20:57:59 +09:00
cat	ae1a102882	fmsg: support temporarily withholding output ... Trying to print to a shared stdout is a terrible idea. This change makes it possible to withhold output for the lifetime of the sandbox. Signed-off-by: Ophestra Umiker <cat@ophivana.moe>	2024-10-26 23:09:32 +09:00
cat	050ffceb27	helper/bwrap: register generic PermConfig types with gob ... Signed-off-by: Ophestra Umiker <cat@ophivana.moe>	2024-10-25 13:26:01 +09:00
cat	65af1684e3	migrate to git.ophivana.moe/security/fortify ... Signed-off-by: Ophestra Umiker <cat@ophivana.moe>	2024-10-20 19:50:13 +09:00
cat	184a5f29fa	helper/bwrap: add fortify permissive default test case ... Signed-off-by: Ophestra Umiker <cat@ophivana.moe>	2024-10-15 02:56:13 +09:00
cat	3015266e5a	helper/bwrap: sort SetEnv arguments ... This guarantees consistency of resulting args. Signed-off-by: Ophestra Umiker <cat@ophivana.moe>	2024-10-15 02:55:48 +09:00
cat	2faf510146	helper/bwrap: ordered filesystem args ... The argument builder was written based on the incorrect assumption that bwrap arguments are unordered. The argument builder is replaced in this commit to correct that mistake. Signed-off-by: Ophestra Umiker <cat@ophivana.moe>	2024-10-15 02:15:55 +09:00
cat	a0db19b9ad	helper/bwrap: format mode in octal ... Bubblewrap expects an octal representation of mode. Signed-off-by: Ophestra Umiker <cat@ophivana.moe>	2024-10-14 13:47:50 +09:00
cat	aee96b0fdf	helper/bwrap: allow pushing generic arguments to the end of argument stream ... Bwrap argument order determines the order their corresponding actions are performed. This allows generic arguments like tmpfs to the end of the stream to override bind mounts. Signed-off-by: Ophestra Umiker <cat@ophivana.moe>	2024-10-13 02:26:01 +09:00
cat	8d82446d97	helper: remove unused bwrap config field ... This configuration is not saved anywhere, and does not need to be saved. Bwrap configuration information is already saved into p. Signed-off-by: Ophestra Umiker <cat@ophivana.moe>	2024-10-12 00:55:14 +09:00
cat	713872a5cd	helper/bwrap: move interfaceArgs before stringArgs ... Signed-off-by: Ophestra Umiker <cat@ophivana.moe>	2024-10-11 04:12:47 +09:00
cat	101e49a48b	helper/bwrap: proc, dev and mqueue as string arguments ... These flags do not support --chmod. Signed-off-by: Ophestra Umiker <cat@ophivana.moe>	2024-10-11 01:30:11 +09:00
cat	b99ed94386	helper/bwrap: pass --unshare-user when unshare everything ... Bubblewrap apparently requires --unshare-user even when --unshare-all is set to apply --disable-userns. This behaviour is not clearly documented. Signed-off-by: Ophestra Umiker <cat@ophivana.moe>	2024-10-09 00:22:48 +09:00
cat	c201c30c7f	helper/bwrap: check args only for internal tests ... Tests internal to the helper package sets crash-test-dummy as the command whenever a launch is expected to go through, and the hardcoded args are only valid for internal tests, so this characteristic is used here to exclude external tests that pass real program names and custom bwrap configurations. Signed-off-by: Ophestra Umiker <cat@ophivana.moe>	2024-10-09 00:21:31 +09:00
cat	7c7999e9e5	helper: implementation of helper.Helper using bwrap ... Signed-off-by: Ophestra Umiker <cat@ophivana.moe>	2024-10-08 18:02:38 +09:00
cat	c6223771db	helper: generalise helper.Helper test ... For testing the upcoming bwrap implementation of helper.Helper as it must have identical behaviour. Signed-off-by: Ophestra Umiker <cat@ophivana.moe>	2024-10-08 14:02:54 +09:00