Brad Fitzpatrick c1a2e2c380 net/{packet,tstun},wgengine/filter: fix unknown IP protocol handling ... 01b90df2fa added SCTP support before (with explicit parsing for ports) and 69de3bf7bf tried to add support for arbitrary IP protocols (as long as the ACL permited a port of "*", since we might not know how to find ports from an arbitrary IP protocol, if it even has such a concept). But apparently that latter commit wasn't tested end-to-end enough. It had a lot of tests, but the tests made assumptions about layering that either weren't true, or regressed since 1.20. Notably, it didn't remove the (*Filter).pre bidirectional filter that dropped all "unknown" protocol packets both leaving and entering, even if there were explicit protocol matches allowing them in. Also, don't map all unknown protocols to 0. Keep their IP protocol number parsed so it's matchable by later layers. Only reject illegal things. Fixes #6423 Updates #2162 Updates #2163 Change-Id: I9659b3ece86f4db51d644f9b34df78821758842c Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>		2023-01-14 10:32:18 -08:00
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filter.go	net/{packet,tstun},wgengine/filter: fix unknown IP protocol handling	2023-01-14 10:32:18 -08:00
filter_clone.go	util/codegen, all: use latest year, not time.Now, in generated files	2023-01-02 20:38:32 -08:00
filter_test.go	all: fix spelling mistakes	2022-09-29 13:36:13 -07:00
match.go	all: convert more code to use net/netip directly	2022-07-25 21:53:49 -07:00
tailcfg.go	all: migrate more code code to net/netip directly	2022-08-02 13:59:57 -07:00