Commit Graph

11 Commits (39ecb37fd67de2e1ba74d3409221879b0db6e8ea)

Author SHA1 Message Date
David Anderson 39ecb37fd6 tstest/natlab: support different firewall selectivities.
Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
David Anderson b3d65ba943 tstest/natlab: refactor, expose a Packet type.
HandlePacket and Inject now receive/take Packets. This is a handy
container for the packet, and the attached Trace method can be used
to print traces from custom packet handlers that integrate nicely
with natlab's internal traces.

Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
David Anderson 5eedbcedd1 tstest/natlab: add a stateful firewall.
The firewall provides a ProcessPacket handler, and implements an
address-and-port endpoint dependent firewall that allows all
traffic to egress from the trusted interface, and only allows
inbound traffic if corresponding outbound traffic was previously
seen.

Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
David Anderson 0ed9f62ed0 tstest/natlab: provide inbound interface to HandlePacket.
Requires a bunch of refactoring so that Networks only ever
refer to Interfaces that have been attached to them, and
Interfaces know about both their Network and Machine.

Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
Brad Fitzpatrick 6c74065053 wgengine/magicsock, tstest/natlab: start hooking up natlab to magicsock
Also adds ephemeral port support to natlab.

Work in progress.

Pairing with @danderson.
4 years ago
David Anderson 0aea087766 tstest/natlab: add PacketHandler and Inject.
Together, they can be used to plug custom packet processors into
Machines.

Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
David Anderson 73db7e99ab tstest/natlab: make Machine constructible directly.
This is a prelude to adding more fields, which would otherwise
become more unnamed function params.

Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
David Anderson c53b154171 tstest/natlab: use &Network in test.
Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
David Anderson 1d4f9852a7 tstest/natlab: correctly handle dual-stacked PacketConns.
Adds a test with multiple networks, one of which is v4-only.

Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
David Anderson f2e5da916a tstest/natlab: allow sensible default construction of networks.
Add a test for LAN->LAN traffic.

Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
Brad Fitzpatrick 14b4213c17 tstest/natlab: add missing tests from earlier commits
Now you can actually see that packet delivery works.

Pairing with @danderson
4 years ago