sandbox/seccomp: resolve rules natively

This enables loading syscall filter policies from external cross-platform config files.

This also removes a significant amount of C code.

Signed-off-by: Ophestra <cat@gensokyo.uk>

1 files changed, 0 insertions, 58 deletions

diff --git a/sandbox/seccomp/export.go b/sandbox/seccomp/export.go
deleted file mode 100644
index c0d2803d..00000000
--- a/sandbox/seccomp/export.go
+++ /dev/null
@@ -1,58 +0,0 @@
-package seccomp
-
-import (
-	"os"
-	"runtime"
-	"sync"
-)
-
-type exporter struct {
-	opts FilterOpts
-	r, w *os.File
-
-	prepareOnce sync.Once
-	prepareErr  error
-	closeOnce   sync.Once
-	closeErr    error
-	exportErr   <-chan error
-}
-
-func (e *exporter) prepare() error {
-	e.prepareOnce.Do(func() {
-		if r, w, err := os.Pipe(); err != nil {
-			e.prepareErr = err
-			return
-		} else {
-			e.r, e.w = r, w
-		}
-
-		ec := make(chan error, 1)
-		go func(fd uintptr) {
-			ec <- buildFilter(int(fd), e.opts)
-			close(ec)
-			_ = e.closeWrite()
-			runtime.KeepAlive(e.w)
-		}(e.w.Fd())
-		e.exportErr = ec
-		runtime.SetFinalizer(e, (*exporter).closeWrite)
-	})
-	return e.prepareErr
-}
-
-func (e *exporter) closeWrite() error {
-	e.closeOnce.Do(func() {
-		if e.w == nil {
-			panic("closeWrite called on invalid exporter")
-		}
-		e.closeErr = e.w.Close()
-
-		// no need for a finalizer anymore
-		runtime.SetFinalizer(e, nil)
-	})
-
-	return e.closeErr
-}
-
-func newExporter(opts FilterOpts) *exporter {
-	return &exporter{opts: opts}
-}