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path: root/test/packetimpact/testbench/layers.go
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2020-08-14Give the ICMP Code its own typeJulian Elischer
This is a preparatory commit for a larger commit working on ICMP generation in error cases. This is removal of technical debt and cleanup in the gvisor code as part of gvisor issue 2211. Updates #2211. PiperOrigin-RevId: 326615389
2020-07-22make connect(2) fail when dest is unreachableKevin Krakauer
Previously, ICMP destination unreachable datagrams were ignored by TCP endpoints. This caused connect to hang when an intermediate router couldn't find a route to the host. This manifested as a Kokoro error when Docker IPv6 was enabled. The Ruby image test would try to install the sinatra gem and hang indefinitely attempting to use an IPv6 address. Fixes #3079.
2020-07-14Test IPv6 fragment reassemblyZeling Feng
A packetimpact test for: "A node must be able to accept a fragmented packet that, after reassembly, is as large as 1500 octets." PiperOrigin-RevId: 321210729
2020-07-14Add support for UDP IPv6Jay Zhuang
Also ironed out all the bugs found on the IPv6 code path that affects socket bind, send and receive. PiperOrigin-RevId: 321202653
2020-06-26Support IPv6 extension headers in packetimpact tests.Zeling Feng
- IPv6 HopByHop Options Extension Header - IPv6 Destination Options Extension Header PiperOrigin-RevId: 318551425
2020-06-05Handle TCP segment split cases as per MSS.Mithun Iyer
- Always split segments larger than MSS. Currently, we base the segment split decision as a function of the send congestion window and MSS, which could be greater than the MSS advertised by remote. - While splitting segments, ensure the PSH flag is reset when there are segments that are queued to be sent. - With TCP_CORK, hold up segments up until MSS. Fix a bug in computing available send space before attempting to coalesce segments. Fixes #2832 PiperOrigin-RevId: 314802928
2020-05-18Support TCP options for packetimpactZeling Feng
PiperOrigin-RevId: 312119730
2020-05-08Add UDP send/recv packetimpact tests.Bhasker Hariharan
Fixes #2654 PiperOrigin-RevId: 310642216
2020-04-28Internal change.gVisor bot
PiperOrigin-RevId: 308940886
2020-04-24Add ICMP6 param problem testEyal Soha
Tested: When run on Linux, a correct ICMPv6 response is received. On netstack, no ICMPv6 response is received. PiperOrigin-RevId: 308343113
2020-04-24Better error message from ExpectFrameEyal Soha
Display the errors as diffs between the expected and wanted frame. PiperOrigin-RevId: 308333271
2020-04-23Fix Layer merge and add unit testsEyal Soha
mergo was improperly merging nil and empty strings PiperOrigin-RevId: 308170862
2020-04-15Use hex.Dump for Layer.String() of byte slices.Eyal Soha
PiperOrigin-RevId: 306726587
2020-04-15Refactor connections.go to make it easier to add new connection types.Eyal Soha
Rather than have a struct for the state of each type of connection, such as TCP/IPv4, UDP/IPv4, TCP/IPv6, etc, have a state for each layer, such as UDP, TCP, IPv4, IPv6. Those states can be composed into connections. Tested: Existing unit tests still pass/fail as expected. PiperOrigin-RevId: 306703180
2020-04-12Refactor parser to use a for loop instead of recursion.Eyal Soha
This makes the code shorter and less repetitive. TESTED: All unit tests still pass. PiperOrigin-RevId: 306161475
2020-04-11Improve error messages when parsing headers.Eyal Soha
Tested: Looked at output of failing tests. PiperOrigin-RevId: 306031407
2020-04-08Dereference pointers in Layer's Stringer implgVisor bot
Dereference any fields which are pointers before string formatting so that the value pointed to ends up in the string representation. Tested: Added TestLayerStringFormat to //third_party/gvisor/test/packetimpact/testbench:testbench_test PiperOrigin-RevId: 305627821
2020-04-06Implement Stringer for LayerEyal Soha
Tested: Sample output for printing 3 different Layer structs: &testbench.Ether{SrcAddr:02:42:c4:77:5d:14 DstAddr:02:42:c4:77:5d:0a} &testbench.IPv4{SrcAddr:196.119.93.20 DstAddr:224.0.0.1} &testbench.UDP{SrcPort:0xc00033b260 DstPort:0xc00033b280} Sample output for printing a Layers struct (word-wrapped): [&testbench.Ether{SrcAddr:02:42:c4:77:5d:14 DstAddr:02:42:c4:77:5d:0a} &testbench.IPv4{SrcAddr:196.119.93.20 DstAddr:224.0.0.1} &testbench.UDP{SrcPort:0xc00033b260 DstPort:0xc00033b280} &testbench.Payload{Bytes:[104 101 108 108 111 32 119 111 114 108 100]}] PiperOrigin-RevId: 305014376
2020-03-31Test receiving multicast packets over UDPEyal Soha
PiperOrigin-RevId: 304098611
2020-03-17Packetimpact in Go with c++ stubEyal Soha
PiperOrigin-RevId: 301382690
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