Implement splice methods for pipes and sockets.

This also allows the tee(2) implementation to be enabled, since dup can now be
properly supported via WriteTo.

Note that this change necessitated some minor restructoring with the
fs.FileOperations splice methods. If the *fs.File is passed through directly,
then only public API methods are accessible, which will deadlock immediately
since the locking is already done by fs.Splice. Instead, we pass through an
abstract io.Reader or io.Writer, which elide locks and use the underlying
fs.FileOperations directly.

PiperOrigin-RevId: 268805207
7 files changed
tree: b886c0420f885d7c4baaeb29d8dd5308813dad8e
  1. gate/
  2. ilist/
  3. rand/
  4. sleep/
  5. tcpip/
  6. tmutex/
  7. waiter/
  8. AUTHORS
  9. CONTRIBUTING.md
  10. LICENSE
  11. README.md
README.md

Netstack

Netstack is a network stack written in Go.

Getting started

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>

Contributions

Please see CONTRIBUTING.md for more details.

Issues/Bug Reports

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.

Disclaimer

This is not an official Google product (experimental or otherwise), it is just code that happens to be owned by Google.