diff options
Diffstat (limited to 'runsc/boot/loader.go')
| -rw-r--r-- | runsc/boot/loader.go | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/runsc/boot/loader.go b/runsc/boot/loader.go index 2733c4d69..ae2226e12 100644 --- a/runsc/boot/loader.go +++ b/runsc/boot/loader.go @@ -31,6 +31,7 @@ import ( "gvisor.googlesource.com/gvisor/pkg/abi/linux" "gvisor.googlesource.com/gvisor/pkg/cpuid" "gvisor.googlesource.com/gvisor/pkg/log" + "gvisor.googlesource.com/gvisor/pkg/sentry/arch" "gvisor.googlesource.com/gvisor/pkg/sentry/inet" "gvisor.googlesource.com/gvisor/pkg/sentry/kernel" "gvisor.googlesource.com/gvisor/pkg/sentry/kernel/auth" @@ -576,3 +577,19 @@ func newEmptyNetworkStack(conf *Config, clock tcpip.Clock) (inet.Stack, error) { panic(fmt.Sprintf("invalid network configuration: %v", conf.Network)) } } + +func (l *Loader) signal(cid string, signo int32) error { + l.mu.Lock() + tgid, ok := l.containerRootTGIDs[cid] + l.mu.Unlock() + if !ok { + return fmt.Errorf("failed to signal container %q: no such container", cid) + } + + // The thread group ID of a process is the leading task's thread ID. + t := l.k.TaskSet().Root.TaskWithID(tgid) + if t == nil { + return fmt.Errorf("cannot signal: no task with ID %d", tgid) + } + return t.SendSignal(&arch.SignalInfo{Signo: signo}) +} |