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-rw-r--r--fst/sandbox.go7
1 files changed, 7 insertions, 0 deletions
diff --git a/fst/sandbox.go b/fst/sandbox.go
index 8def9086..0c3918a9 100644
--- a/fst/sandbox.go
+++ b/fst/sandbox.go
@@ -22,6 +22,8 @@ type SandboxConfig struct {
Net bool `json:"net,omitempty"`
// share all devices
Dev bool `json:"dev,omitempty"`
+ // seccomp syscall filter policy
+ Syscall *bwrap.SyscallPolicy `json:"syscall"`
// do not run in new session
NoNewSession bool `json:"no_new_session,omitempty"`
// map target user uid to privileged user uid in the user namespace
@@ -50,6 +52,10 @@ func (s *SandboxConfig) Bwrap(os linux.System) (*bwrap.Config, error) {
return nil, errors.New("nil sandbox config")
}
+ if s.Syscall == nil {
+ fmsg.VPrintln("syscall filter not configured, PROCEED WITH CAUTION")
+ }
+
var uid int
if !s.MapRealUID {
uid = 65534
@@ -69,6 +75,7 @@ func (s *SandboxConfig) Bwrap(os linux.System) (*bwrap.Config, error) {
so this capacity should eliminate copies for most setups */
Filesystem: make([]bwrap.FSBuilder, 0, 256),
+ Syscall: s.Syscall,
NewSession: !s.NoNewSession,
DieWithParent: true,
AsInit: true,