Commit Graph

22 Commits

Author SHA1 Message Date
gVisor bot 3ffbdffd7e Internal change.
PiperOrigin-RevId: 264218306
2019-08-19 12:43:22 -07:00
Adin Scannell add40fd6ad Update canonical repository.
This can be merged after:
https://github.com/google/gvisor-website/pull/77
  or
https://github.com/google/gvisor-website/pull/78

PiperOrigin-RevId: 253132620
2019-06-13 16:50:15 -07:00
Andrei Vagin 79f7cb6c1c netstack/sniffer: log GSO attributes
PiperOrigin-RevId: 251788534
2019-06-05 22:51:53 -07:00
Googler f2699b76c8 Support IPv4 fragmentation in netstack
Testing:
Unit tests and also large ping in Fuchsia OS
PiperOrigin-RevId: 246563592
Change-Id: Ia12ab619f64f4be2c8d346ce81341a91724aef95
2019-05-03 13:30:35 -07:00
Michael Pratt 4d52a55201 Change copyright notice to "The gVisor Authors"
Based on the guidelines at
https://opensource.google.com/docs/releasing/authors/.

1. $ rg -l "Google LLC" | xargs sed -i 's/Google LLC.*/The gVisor Authors./'
2. Manual fixup of "Google Inc" references.
3. Add AUTHORS file. Authors may request to be added to this file.
4. Point netstack AUTHORS to gVisor AUTHORS. Drop CONTRIBUTORS.

Fixes #209

PiperOrigin-RevId: 245823212
Change-Id: I64530b24ad021a7d683137459cafc510f5ee1de9
2019-04-29 14:26:23 -07:00
Andrei Vagin f4105ac21a netstack/fdbased: add generic segmentation offload (GSO) support
The linux packet socket can handle GSO packets, so we can segment packets to
64K instead of the MTU which is usually 1500.

Here are numbers for the nginx-1m test:
runsc:		579330.01 [Kbytes/sec] received
runsc-gso:	1794121.66 [Kbytes/sec] received
runc:		2122139.06 [Kbytes/sec] received

and for tcp_benchmark:

$ tcp_benchmark  --duration 15   --ideal
[  4]  0.0-15.0 sec  86647 MBytes  48456 Mbits/sec

$ tcp_benchmark --client --duration 15   --ideal
[  4]  0.0-15.0 sec  2173 MBytes  1214 Mbits/sec

$ tcp_benchmark --client --duration 15   --ideal --gso 65536
[  4]  0.0-15.0 sec  19357 MBytes  10825 Mbits/sec

PiperOrigin-RevId: 240809103
Change-Id: I2637f104db28b5d4c64e1e766c610162a195775a
2019-03-28 11:03:41 -07:00
Bert Muthalaly bc41e4761b Rename incorrectly named (dst, src) arguments in DeliverNetworkPacket prototype
...to (remote, local), reflecting the (correct) names in the implementation of
DeliverNetworkPacket (see tcpip/stack/nic.go).

Also trim the names in DeliverNetworkPacket and elsewhere to avoid stuttering;
since the type is tcpip.LinkAddress, there's no need to include "LinkAddr" in
the parameter names.

Note that every callsite passes arguments in the order (src, dst).

PiperOrigin-RevId: 221514396
Change-Id: I3637454ad0d6e62a19e4dcbc2a16493798bd0f09
2018-11-14 14:46:24 -08:00
Ian Gudger 8fce67af24 Use correct company name in copyright header
PiperOrigin-RevId: 217951017
Change-Id: Ie08bf6987f98467d07457bcf35b5f1ff6e43c035
2018-10-19 16:35:11 -07:00
Bert Muthalaly 2e497de2d9 Pass local link address to DeliverNetworkPacket
This allows a NetworkDispatcher to implement transparent bridging,
assuming all implementations of LinkEndpoint.WritePacket call eth.Encode
with header.EthernetFields.SrcAddr set to the passed
Route.LocalLinkAddress, if it is provided.

PiperOrigin-RevId: 213686651
Change-Id: I446a4ac070970202f0724ef796ff1056ae4dd72a
2018-09-19 13:43:58 -07:00
Tamir Duberstein 75c66f871b Remove buffer.Prependable.UsedBytes
It is the same as buffer.Prependable.View.

PiperOrigin-RevId: 213064166
Change-Id: Ib33b8a2c4da864209d9a0be0a1c113be10b520d3
2018-09-14 16:39:56 -07:00
Tamir Duberstein d7a05b4e63 Pass buffer.Prependable by value
PiperOrigin-RevId: 213053370
Change-Id: I60ea89572b4fca53fd126c870fcbde74fcf52562
2018-09-14 15:23:58 -07:00
Tamir Duberstein d689f8422f Always pass buffer.VectorisedView by value
PiperOrigin-RevId: 212757571
Change-Id: I04200df9e45c21eb64951cd2802532fa84afcb1a
2018-09-12 21:57:55 -07:00
Bert Muthalaly 5685d6b5ad Update {LinkEndpoint,NetworkEndpoint}#WritePacket to take a VectorisedView
Makes it possible to avoid copying or allocating in cases where DeliverNetworkPacket (rx)
needs to turn around and call WritePacket (tx) with its VectorisedView.

Also removes the restriction on having VectorisedViews with multiple views in the write path.

PiperOrigin-RevId: 211728717
Change-Id: Ie03a65ecb4e28bd15ebdb9c69f05eced18fdfcff
2018-09-05 17:34:25 -07:00
Bhasker Hariharan 2cff07381a Automated rollback of changelist 211156845
PiperOrigin-RevId: 211525182
Change-Id: I462c20328955c77ecc7bfd8ee803ac91f15858e6
2018-09-04 14:31:52 -07:00
Googler f0d8817654 Automated rollback of changelist 211103930
PiperOrigin-RevId: 211156845
Change-Id: Ie28011d7eb5f45f3a0158dbee2a68c5edf22f6e0
2018-08-31 15:48:50 -07:00
Tamir Duberstein 625edb9f28 ipv6: ICMP support
This CL does NDP link-address discovery for IPv6.

It includes several small changes necessary to get linux to talk to
this implementation. In particular, a hop limit of 255 is necessary
for ICMPv6.

PiperOrigin-RevId: 211103930
Change-Id: If25370ab84c6b1decfb15de917f3b0020f2c4e0e
2018-08-31 10:23:32 -07:00
Tamir Duberstein 0923bcf06b Add various statistics
PiperOrigin-RevId: 210442599
Change-Id: I9498351f461dc69c77b7f815d526c5693bec8e4a
2018-08-27 15:29:55 -07:00
Ian Gudger 45e759a1fa Build PCAP file with atomic blocking writes
The previous use of non-blocking writes could result in corrupt PCAP files if a
partial write occurs. Using (*os.File).Write solves this problem by not
allowing partial writes. This change does not increase allocations (in one path
it actually reduces them), but does add additional copying.

PiperOrigin-RevId: 209652974
Change-Id: I4b1cf2eda4cfd7f237a4245aceb7391b3055a66c
2018-08-21 13:49:18 -07:00
Nicolas Lacasse bf0fa09537 Switch netstack licenses to Apache 2.0.
Fixes #27

PiperOrigin-RevId: 203825288
Change-Id: Ie9f3a2b2c1e296b026b024f75c07da1a7e118633
2018-07-09 14:04:40 -07:00
Kevin Krakauer 705605f901 sentry: Add simple SIOCGIFFLAGS support (IFF_RUNNING and IFF_PROMIS).
Establishes a way of communicating interface flags between netstack and
epsocket. More flags can be added over time.

PiperOrigin-RevId: 197616669
Change-Id: I230448c5fb5b7d2e8d69b41a451eb4e1096a0e30
2018-05-22 13:47:33 -07:00
Bhasker Hariharan 43256efb08 Write either packet logs or pcap file. But not both.
PiperOrigin-RevId: 195035056
Change-Id: Ib32188b62188ddc2059debd52610e7904e1438c6
2018-05-01 19:11:59 -07:00
Googler d02b74a5dc Check in gVisor.
PiperOrigin-RevId: 194583126
Change-Id: Ica1d8821a90f74e7e745962d71801c598c652463
2018-04-28 01:44:26 -04:00