20 Commits
Author SHA1 Message Date
Jing Chen 7cc17225e6 Remove references to math/rand package's Read function.
The helper function is deprecated. The package gvisor.dev/gvisor/pkg/rand
depends on crypto/rand which performs worse thatn math/rand, the changes
are fine since they are not at any gVisor's hot path.

The ultimate goal is to migrate math/rand to math/rand/v2.
2024-10-16 18:17:15 +00:00
Jing ChenandgVisor bot cf5c4c9cbf Replace reflect.DeepEqual with [slices/maps].Equal.
They are faster on slice/map comparisons.

PiperOrigin-RevId: 633080355
2024-05-12 21:20:18 -07:00
Andrei Vagin 5f4abad306 Fix a few typos
It is an idea of running codespell as part of our presubmit checks.
Before enabling it for new changes, let's fix what it has found.

Signed-off-by: Andrei Vagin <avagin@gmail.com>
2023-10-25 12:13:42 -07:00
Ayush RanjanandgVisor bot f6ed4523dc Reformat codebase.
PiperOrigin-RevId: 449358041
2022-05-17 17:48:35 -07:00
Nicolas LacasseandgVisor bot 6f5e9e7b74 Rename p9.ConnectFlags to p9.SocketType.
Since the socket type can be passed to Bind as well as Connect, it makes sense
to have a more general name.

Also consolidate the logic for converting between p9 and linux socket types.

Note that despite the name change, nothing in the 9p or LISA wire protocols
have changed, so there is no compatibility issues.

PiperOrigin-RevId: 430323611
2022-02-22 16:40:43 -08:00
Ayush RanjanandgVisor bot f3ff82093e Wrap server-side panics in EREMOTEIO.
EREMOTEIO is a more appropriate generic error for a remote procedure call (RPC)
failure on the gofer. EFAULT means bad address and can be misleading to the
application as it will denote a MM layer related issue.

PiperOrigin-RevId: 423990374
2022-01-24 22:01:10 -08:00
Ayush RanjanandgVisor bot a9441aea27 [op] Replace syscall package usage with golang.org/x/sys/unix in pkg/.
The syscall package has been deprecated in favor of golang.org/x/sys.

Note that syscall is still used in the following places:
- pkg/sentry/socket/hostinet/stack.go: some netlink related functionalities
  are not yet available in golang.org/x/sys.
- syscall.Stat_t is still used in some places because os.FileInfo.Sys() still
  returns it and not unix.Stat_t.

Updates #214

PiperOrigin-RevId: 360701387
2021-03-03 10:25:58 -08:00
Adin ScannellandgVisor bot 4cba3904f4 Remove existing nogo exceptions.
PiperOrigin-RevId: 347047550
2020-12-11 12:06:49 -08:00
Fabricio VoznikaandgVisor bot 37a217aca4 Implement setattr+clunk in 9P
This is to cover the common pattern: open->read/write->close,
where SetAttr needs to be called to update atime/mtime before
the file is closed.

Benchmark results:

BM_OpenReadClose/10240 CPU
setattr+clunk: 63783 ns
VFS2:          68109 ns
VFS1:          72507 ns

Updates #1198

PiperOrigin-RevId: 329628461
2020-09-01 19:22:12 -07:00
Ian GudgerandgVisor bot 27500d529f New sync package.
* Rename syncutil to sync.
* Add aliases to sync types.
* Replace existing usage of standard library sync package.

This will make it easier to swap out synchronization primitives. For example,
this will allow us to use primitives from github.com/sasha-s/go-deadlock to
check for lock ordering violations.

Updates #1472

PiperOrigin-RevId: 289033387
2020-01-09 22:02:24 -08:00
Nicolas LacasseandgVisor bot 012102eefd Pass OpenTruncate to gofer in Open call when opening file with O_TRUNC.
Note that the Sentry still calls Truncate() on the file before calling Open.

A new p9 version check was added to ensure that the p9 server can handle the
the OpenTruncate flag. If not, then the flag is stripped before sending.

PiperOrigin-RevId: 281609112
2019-11-20 15:07:16 -08:00
Adin ScannellandgVisor bot 6c88f674af Add test for concurrent reads and writes.
PiperOrigin-RevId: 270789146
2019-09-23 16:44:30 -07:00
Michael PrattandgVisor bot 5b41ba5d0e Fix various spelling issues in the documentation
Addresses obvious typos, in the documentation only.

COPYBARA_INTEGRATE_REVIEW=https://github.com/google/gvisor/pull/443 from Pixep:fix/documentation-spelling 4d0688164eafaf0b3010e5f4824b35d1e7176d65
PiperOrigin-RevId: 255477779
2019-06-27 14:25:50 -07:00
Michael PrattandgVisor bot 9d2efaac5a Add renamed children pathNodes to target parent
Otherwise future renames may miss Renamed calls.

PiperOrigin-RevId: 254060946
2019-06-19 13:41:07 -07:00
Adin ScannellandShentubot 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
Michael PrattandShentubot 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
Adin ScannellandShentubot 75cd70ecc9 Track paths and provide a rename hook.
This change also adds extensive testing to the p9 package via mocks. The sanity
checks and type checks are moved from the gofer into the core package, where
they can be more easily validated.

PiperOrigin-RevId: 218296768
Change-Id: I4fc3c326e7bf1e0e140a454cbacbcc6fd617ab55
2018-10-23 00:20:15 -07:00
Ian GudgerandShentubot 8fce67af24 Use correct company name in copyright header
PiperOrigin-RevId: 217951017
Change-Id: Ie08bf6987f98467d07457bcf35b5f1ff6e43c035
2018-10-19 16:35:11 -07:00
Adin ScannellandShentubot 6cfb5cd56d Add additional sanity checks for walk.
PiperOrigin-RevId: 212058684
Change-Id: I319709b9ffcfccb3231bac98df345d2a20eca24b
2018-09-07 16:53:12 -07:00
GooglerandAdin Scannell d02b74a5dc Check in gVisor.
PiperOrigin-RevId: 194583126
Change-Id: Ica1d8821a90f74e7e745962d71801c598c652463
2018-04-28 01:44:26 -04:00