Commit Graph

9 Commits

Author SHA1 Message Date
Adin Scannell 0e2f1b7abd Update package locations.
Because the abi will depend on the core types for marshalling (usermem,
context, safemem, safecopy), these need to be flattened from the sentry
directory. These packages contain no sentry-specific details.

PiperOrigin-RevId: 291811289
2020-01-27 15:31:32 -08:00
Adin Scannell d29e59af9f Standardize on tools directory.
PiperOrigin-RevId: 291745021
2020-01-27 12:21:00 -08:00
Ian Gudger 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
Jamie Liu f45df7505b Clean up vfs.FilesystemImpl methods that operate on parent directories.
- Make FilesystemImpl methods that operate on parent directories require
  !rp.Done() (i.e. there is at least one path component to resolve) as
  precondition and postcondition (in cases where they do not finish path
  resolution due to mount boundary / absolute symlink), and require that they
  do not need to follow the last path component (the file being created /
  deleted) as a symlink. Check for these in VFS.

- Add FilesystemImpl.GetParentDentryAt(), which is required to obtain the old
  parent directory for VFS.RenameAt(). (Passing the Dentry to be renamed
  instead has the wrong semantics if the file named by the old path is a mount
  point since the Dentry will be on the wrong Mount.)

- Update memfs to implement these methods correctly (?), including RenameAt.

- Change fspath.Parse() to allow empty paths (to simplify implementation of
  AT_EMPTY_PATH).

- Change vfs.PathOperation to take a fspath.Path instead of a raw pathname;
  non-test callers will need to fspath.Parse() pathnames themselves anyway in
  order to detect absolute paths and select PathOperation.Start accordingly.

PiperOrigin-RevId: 286934941
2019-12-23 13:18:39 -08:00
Jamie Liu 481dbfa5ab Add vfs.Pathname{WithDeleted,ForGetcwd}.
The former is needed for vfs.FileDescription to implement
memmap.MappingIdentity, and the latter is needed to implement getcwd(2).

PiperOrigin-RevId: 285051855
2019-12-11 14:26:32 -08:00
Kevin Krakauer 2a82d5ad68 Reorder BUILD license and load functions in gvisor.
PiperOrigin-RevId: 275139066
2019-10-16 16:40:30 -07:00
Michael Pratt df5d377521 Remove go_test from go_stateify and go_marshal
They are no-ops, so the standard rule works fine.

PiperOrigin-RevId: 268776264
2019-09-12 15:10:17 -07:00
Adin Scannell 67a2ab1438 Impose order on test scripts.
The simple test script has gotten out of control. Shard this script into
different pieces and attempt to impose order on overall test structure. This
change helps lay some of the foundations for future improvements.

 * The runsc/test directories are moved into just test/.
 * The runsc/test/testutil package is split into logical pieces.
 * The scripts/ directory contains new top-level targets.
 * Each test is now responsible for building targets it requires.
 * The install functionality is moved into `runsc` itself for simplicity.
 * The existing kokoro run_tests.sh file now just calls all (can be split).

After this change is merged,  I will create multiple distinct workflows for
Kokoro, one for each of the scripts currently targeted by `run_tests.sh` today,
which should dramatically reduce the time-to-run for the Kokoro tests, and
provides a better foundation for further improvements to the infrastructure.

PiperOrigin-RevId: 267081397
2019-09-03 22:02:43 -07:00
Ayush Ranjan c8961a6cbd ext: Move to pkg/sentry/fsimpl.
fsimpl is the keeper of all filesystem implementations in VFS2.

PiperOrigin-RevId: 262617869
2019-08-09 13:08:28 -07:00