go: expose rulesets - #392
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QueueAttr.RuleText installs a ruleset on the queue. It's parsed with quark_ruleset_parse() inside OpenQueue() -- before any privileged operation, so parse errors surface without root -- via an fmemopen shim borrowed from quark-test's ruleset_from_string1(). The C ruleset is owned by the Queue and released on Close(). Processes matched by poison rules carry the tag in the new Process.PoisonTag. TestRuleText covers parse success/failure without root; TestQuark gains RulePoison, a Go port of t_rule_poison.
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Split out of #386; this carries only the rule DSL exposure.
QueueAttr.RuleTextinstalls a ruleset on the queue. It's parsed withquark_ruleset_parse()insideOpenQueue()— before any privileged operation, so parse errors surface without root — via an fmemopen shim borrowed from quark-test'sruleset_from_string1(). The C ruleset is owned by theQueueand released onClose()(the queue only borrows the pointer). Processes matched by poison rules carry the tag in the newProcess.PoisonTag(set unconditionally, zero = no match, same semantics asquark_process.poison_tag). Until now the DSL — includingfile.exec_change— was unusable from Go.Tests:
TestRuleTextcovers parse success/failure without root;TestQuarkgainsRulePoison, a Go port oft_rule_poison(poison children by ppid, pass only poisoned, drop the rest — every surviving event must carry the tag). RulePoison uses/bin/truerather than/bin/echoso it also runs in the initramfs VM.Code identical to #386, where the full Go suite passed as root on real hardware and under krun; gofmt, go vet and a test-binary link re-checked here.
Note: the go/quark PRs split out of #372/#386 each append a CHANGES bullet, so whichever merges later needs a trivial rebase.