gvisor - Container Runtime Sandbox

Age	Commit message (Collapse)	Author
2020-07-31	iptables: support SO_ORIGINAL_DST	Kevin Krakauer
	Envoy (#170) uses this to get the original destination of redirected packets.
2020-07-28	ip6tables testing	Kevin Krakauer
	We skip gVisor tests for now, as ip6tables aren't yet implemented.
2020-07-24	Speed up some iptables tests	Kevin Krakauer
	Sending UDP packets in a loop can be done in a separate goroutine. We can't do this in ContainerAction because the container will terminate early. Locally, scripts/iptables_tests.sh runs ~40 seconds faster.
2020-07-22	iptables: don't NAT existing connections	Kevin Krakauer
	Fixes a NAT bug that manifested as: - A SYN was sent from gVisor to another host, unaffected by iptables. - The corresponding SYN/ACK was NATted by a PREROUTING REDIRECT rule despite being part of the existing connection. - The socket that sent the SYN never received the SYN/ACK and thus a connection could not be established. We handle this (as Linux does) by tracking all connections, inserting a no-op conntrack rule for new connections with no rules of their own. Needed for istio support (#170).
2020-07-08	ip6tables: handle both IPv4 and v6 addresses	Kevin Krakauer
	Enabling IPv6 in Docker caused IPv4 tests to fail because localAddrs didn't distinguish between address types. Example failure: https://source.cloud.google.com/results/invocations/203b2401-3333-4bec-9a56-72cc53d68ddd/log
2020-06-05	iptables: loopback traffic skips prerouting chain	Kevin Krakauer
	Loopback traffic is not affected by rules in the PREROUTING chain. This change is also necessary for istio's envoy to talk to other components in the same pod.
2020-05-01	Support for connection tracking of TCP packets.	Nayana Bidari
	Connection tracking is used to track packets in prerouting and output hooks of iptables. The NAT rules modify the tuples in connections. The connection tracking code modifies the packets by looking at the modified tuples.
2020-03-16	Merge pull request #1943 from kevinGC:ipt-filter-ip	gVisor bot
	PiperOrigin-RevId: 301197007
2020-03-11	iptables: ready tests to be enabled in kokoro	Kevin Krakauer
	Fixed flakes (tested via --runs_per_test=100) and added skips for not-yet-implemented features. Once submitted, the iptables tests will be ready to enable in kokoro.
2020-02-26	iptables: filter by IP address (and range)	Kevin Krakauer
	Enables commands such as: $ iptables -A INPUT -d 127.0.0.1 -j ACCEPT $ iptables -t nat -A PREROUTING ! -d 127.0.0.1 -j REDIRECT Also adds a bunch of REDIRECT+destination tests.
2020-02-25	Add nat table support for iptables.	Nayana Bidari
	- commit the changes for the comments.
2020-02-18	iptables: use "-t nat" for NAT tests	gVisor bot
	PiperOrigin-RevId: 295835807
2020-02-18	Add nat table support for iptables.	Nayana Bidari
	Add nat table support for Prerouting hook with Redirect option. Add tests to check redirect of ports.
2020-01-17	Merge pull request #1541 from nybidari:iptables	gVisor bot
	PiperOrigin-RevId: 290273561
2020-01-10	Add tests for redirect port	Nayana Bidari
	Fix indentation and change function names.
2020-01-09	Add test for redirect port	Nayana Bidari
	Fix the indentation and print statements. Moved the NAT redirect tests to new file. Added negative test to check redirect rule on ports other than redirected port.