16 Commits

Author SHA1 Message Date
Jamie Liu e23347e5b5 Move //pkg/sentry/kernel/time to //pkg/sentry/ktime.
This avoids needing to rename it everywhere it's imported.

PiperOrigin-RevId: 693930089
2024-11-06 18:13:51 -08:00
Etienne Perot 44e2d0fcfe gVisor: Refactor SyscallFn to take in the syscall number as argument.
This will be used to plumb the syscall number through to a counter metric that
exports the number of times an unimplemented syscall has been called.

Plenty of syscall implementations call `EmitUnimplementedEvent` for flags and
settings that are not implemented. With `sysno` available, they will be able
to plumb that bit of information through.

PiperOrigin-RevId: 518635831
2023-03-22 12:06:26 -07:00
Ayush Ranjan 1fa3c06f1e Delete VFS1 completely.
- Delete pkg/sentry/fs/*.
- Move pkg/sentry/fs/fsutil out of VFS1 directory and remove VFS1 components.
- Remove remaining unused references to VFS1 from remaining codebase.
- Rename/refactor code to avoid even referencing VFS2, unless necessary.
- Rewrite VFS1-only tests to VFS2.

Updates #1624

PiperOrigin-RevId: 490064269
2022-11-21 13:57:52 -08:00
Ayush Ranjan ed35016d99 Delete VFS1 syscall handlers.
Directly use VFS2 syscall handlers. No need to override VFS2 handlers.
Updates #1624

PiperOrigin-RevId: 488448348
2022-11-14 13:11:22 -08:00
Zach Koopmans 6ef2684096 [syserror] Update syserror to linuxerr for EACCES, EBADF, and EPERM.
Update all instances of the above errors to the faster linuxerr implementation.
With the temporary linuxerr.Equals(), no logical changes are made.

PiperOrigin-RevId: 382306655
2021-06-30 08:18:59 -07:00
Zach Koopmans 54b71221c0 [syserror] Change syserror to linuxerr for E2BIG, EADDRINUSE, and EINVAL
Remove three syserror entries duplicated in linuxerr. Because of the
linuxerr.Equals method, this is a mere change of return values from
syserror to linuxerr definitions.

Done with only these three errnos as CLs removing all grow to a significantly
large size.

PiperOrigin-RevId: 382173835
2021-06-29 15:08:46 -07:00
Rahat Mahmood d201feb8c5 Enable automated marshalling for the syscall package.
PiperOrigin-RevId: 331940975
2020-09-15 23:38:57 -07:00
Nayana Bidari b2ae7ea1bb Plumbing context.Context to DecRef() and Release().
context is passed to DecRef() and Release() which is
needed for SO_LINGER implementation.

PiperOrigin-RevId: 324672584
2020-08-03 13:36:05 -07:00
gVisor bot f544509c01 Merge pull request #450 from Pixep:feature/add-clock-boottime-as-monotonic
PiperOrigin-RevId: 258996346
2019-07-19 10:44:45 -07:00
Adin Scannell 753da9604e Remove map from fd_map, change to fd_table.
This renames FDMap to FDTable and drops the kernel.FD type, which had an entire
package to itself and didn't serve much use (it was freely cast between types,
and served as more of an annoyance than providing any protection.)

Based on BenchmarkFDLookupAndDecRef-12, we can expect 5-10 ns per lookup
operation, and 10-15 ns per concurrent lookup operation of savings.

This also fixes two tangential usage issues with the FDMap. Namely, non-atomic
use of NewFDFrom and associated calls to Remove (that are both racy and fail to
drop the reference on the underlying file.)

PiperOrigin-RevId: 256285890
2019-07-02 19:28:59 -07:00
Adrien Leravat 3688e6e99d Add CLOCK_BOOTTIME as a CLOCK_MONOTONIC alias
Makes CLOCK_BOOTTIME available with
* clock_gettime
* timerfd_create
* clock_gettime vDSO

CLOCK_BOOTTIME is implemented as an alias to CLOCK_MONOTONIC.
CLOCK_MONOTONIC already keeps track of time across save
and restore. This is the closest possible behavior to Linux
CLOCK_BOOTIME, as there is no concept of suspend/resume.

Updates google/gvisor#218
2019-06-24 21:14:38 -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
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
Ian Gudger 8fce67af24 Use correct company name in copyright header
PiperOrigin-RevId: 217951017
Change-Id: Ie08bf6987f98467d07457bcf35b5f1ff6e43c035
2018-10-19 16:35:11 -07:00
Jamie Liu 64403265a0 Implement POSIX per-process interval timers.
PiperOrigin-RevId: 210021612
Change-Id: If7c161e6fd08cf17942bfb6bc5a8d2c4e271c61e
2018-08-23 16:32:36 -07:00
Googler d02b74a5dc Check in gVisor.
PiperOrigin-RevId: 194583126
Change-Id: Ica1d8821a90f74e7e745962d71801c598c652463
2018-04-28 01:44:26 -04:00