| commit | 552e0d20765700a9b05f9d9a6eaf887887eea6e0 | [log] [tgz] |
|---|---|---|
| author | Chris Kuiper <ckuiper@google.com> | Mon Aug 26 12:28:26 2019 -0700 |
| committer | gVisor bot <gvisor-bot@google.com> | Mon Aug 26 12:28:55 2019 -0700 |
| tree | 458fabde235814340a1a66f97629c63511cbb4d8 | |
| parent | a24973aa5333c349b5de7ff615275d44150b25b0 [diff] |
Prevent a network endpoint to send/rcv if its address was removed This addresses the problem where an endpoint has its address removed but still has outstanding references held by routes used in connected TCP/UDP sockets which prevent the removal of the endpoint. The fix adds a new "expired" flag to the referenced network endpoint, which is set when an endpoint has its address removed. Incoming packets are not delivered to an expired endpoint (unless in promiscuous mode), while sending outgoing packets triggers an error to the caller (unless in spoofing mode). In addition, a few helper functions were added to stack_test.go to reduce code duplications. PiperOrigin-RevId: 265514326
Netstack is a network stack written in Go.
Try it out on Linux by installing the tun_tcp_echo demo:
go install github.com/google/netstack/tcpip/sample/tun_tcp_echo
Create a TUN device with:
[sudo] ip tuntap add user <username> mode tun <device-name> [sudo] ip link set <device-name> up [sudo] ip addr add <ipv4-address>/<mask-length> dev <device-name>
Then run with:
tun_tcp_echo <device-name> <ipv4-address> <port>
Please see CONTRIBUTING.md for more details.
Netstack is primarily developed as part of gVisor and any issues/bugs should be filed against the gVisor repository as this repo is not actively monitored for bug reports.
This is not an official Google product (experimental or otherwise), it is just code that happens to be owned by Google.