1 files changed, 25 insertions, 18 deletions
diff --git a/internal/app/share.system.go b/internal/app/share.system.go
index e4c848bb..9b2565a8 100644
--- a/internal/app/share.system.go
+++ b/internal/app/share.system.go
@@ -14,6 +14,31 @@ const (
 
 // shareSystem queues various system-related actions
 func (seal *appSeal) shareSystem() {
+	// ensure Share (e.g. `/tmp/fortify.%d`)
+	// acl is unnecessary as this directory is world executable
+	seal.sys.Ensure(seal.SharePath, 0701)
+
+	// ensure process-specific share (e.g. `/tmp/fortify.%d/%s`)
+	// acl is unnecessary as this directory is world executable
+	seal.share = path.Join(seal.SharePath, seal.id.String())
+	seal.sys.Ephemeral(system.Process, seal.share, 0701)
+
+	// ensure child tmpdir parent directory (e.g. `/tmp/fortify.%d/tmpdir`)
+	targetTmpdirParent := path.Join(seal.SharePath, "tmpdir")
+	seal.sys.Ensure(targetTmpdirParent, 0700)
+	seal.sys.UpdatePermType(system.User, targetTmpdirParent, acl.Execute)
+
+	// ensure child tmpdir (e.g. `/tmp/fortify.%d/tmpdir/%d`)
+	targetTmpdir := path.Join(targetTmpdirParent, seal.sys.user.Uid)
+	seal.sys.Ensure(targetTmpdir, 01700)
+	seal.sys.UpdatePermType(system.User, targetTmpdir, acl.Read, acl.Write, acl.Execute)
+	seal.sys.bwrap.Bind(targetTmpdir, "/tmp", false, true)
+
+	// mount tmpfs on inner shared directory (e.g. `/tmp/fortify.%d`)
+	seal.sys.bwrap.Tmpfs(seal.SharePath, 1*1024*1024)
+}
+
+func (seal *appSeal) sharePasswd() {
 	// look up shell
 	sh := "/bin/sh"
 	if s, ok := os.LookupEnv(shell); ok {
@@ -44,21 +69,3 @@ func (seal *appSeal) shareSystem() {
 	seal.sys.bwrap.Bind(passwdPath, "/etc/passwd")
 	seal.sys.bwrap.Bind(groupPath, "/etc/group")
 }
-
-func (seal *appSeal) shareTmpdirChild() string {
-	// ensure child tmpdir parent directory (e.g. `/tmp/fortify.%d/tmpdir`)
-	targetTmpdirParent := path.Join(seal.SharePath, "tmpdir")
-	seal.sys.Ensure(targetTmpdirParent, 0700)
-	seal.sys.UpdatePermType(system.User, targetTmpdirParent, acl.Execute)
-
-	// ensure child tmpdir (e.g. `/tmp/fortify.%d/tmpdir/%d`)
-	targetTmpdir := path.Join(targetTmpdirParent, seal.sys.user.Uid)
-	seal.sys.Ensure(targetTmpdir, 01700)
-	seal.sys.UpdatePermType(system.User, targetTmpdir, acl.Read, acl.Write, acl.Execute)
-	seal.sys.bwrap.Bind(targetTmpdir, "/tmp", false, true)
-
-	// mount tmpfs on inner shared directory (e.g. `/tmp/fortify.%d`)
-	seal.sys.bwrap.Tmpfs(seal.SharePath, 1*1024*1024)
-
-	return targetTmpdir
-}