diff options
| author | Jing Chen <chjing@google.com> | 2020-12-03 19:55:20 -0800 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2020-12-03 19:57:51 -0800 |
| commit | a78cef0ed7ce15583424f5873f0aa6fdad1d5c2f (patch) | |
| tree | c6a09e9fbbbbaea63f68bde1a9ef0a698a7b7ae3 /pkg/sentry/kernel | |
| parent | 9eb77281c4fe1c1f252a0df67ca2c1fee8867b80 (diff) | |
Implement command IPC_INFO for semctl.
PiperOrigin-RevId: 345589628
Diffstat (limited to 'pkg/sentry/kernel')
| -rw-r--r-- | pkg/sentry/kernel/semaphore/semaphore.go | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/pkg/sentry/kernel/semaphore/semaphore.go b/pkg/sentry/kernel/semaphore/semaphore.go index 335be8edd..31198d772 100644 --- a/pkg/sentry/kernel/semaphore/semaphore.go +++ b/pkg/sentry/kernel/semaphore/semaphore.go @@ -176,6 +176,22 @@ func (r *Registry) FindOrCreate(ctx context.Context, key, nsems int32, mode linu return r.newSet(ctx, key, owner, owner, perms, nsems) } +// IPCInfo returns information about system-wide semaphore limits and parameters. +func (r *Registry) IPCInfo() *linux.SemInfo { + return &linux.SemInfo{ + SemMap: linux.SEMMAP, + SemMni: linux.SEMMNI, + SemMns: linux.SEMMNS, + SemMnu: linux.SEMMNU, + SemMsl: linux.SEMMSL, + SemOpm: linux.SEMOPM, + SemUme: linux.SEMUME, + SemUsz: 0, // SemUsz not supported. + SemVmx: linux.SEMVMX, + SemAem: linux.SEMAEM, + } +} + // RemoveID removes set with give 'id' from the registry and marks the set as // dead. All waiters will be awakened and fail. func (r *Registry) RemoveID(id int32, creds *auth.Credentials) error { |