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| // In debug builds, log violations instead of silently returning an error so that | ||
| // it won't fail silently during development (which may hard to debug) and we can | ||
| // tell there are missing seccomp rules to be added by comparing debug and release runs. | ||
| if cfg!(debug_assertions) { | ||
| SeccompAction::Log |
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Minor suggestion: we can use SCMP_ACT_TRAP to get a SIGSYS with SYS_SECCOMP that we can use to actually log via litebox_util_log::error!(...) which might be nicer than needing to diff debug/release runs
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Good point! One minor issue: litebox_util_log::error! is not async-signal-safe, so I use raw syscall write instead.
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🤖 SemverChecks 🤖 No breaking API changes detected Note: this does not mean API is unchanged, or even that there are no breaking changes; simply, none of the detections triggered. |
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Address #793 to enable seccomp filter for Linux userland.
In release mode, disallowed syscalls would return
EINVALdirectly while in debug mode, they are also logged in addition to returningEINVAL.