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-rw-r--r--src/shared/nsflags.h29
1 files changed, 29 insertions, 0 deletions
diff --git a/src/shared/nsflags.h b/src/shared/nsflags.h
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--- /dev/null
+++ b/src/shared/nsflags.h
@@ -0,0 +1,29 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
+#pragma once
+
+#include "missing_sched.h"
+
+/* The combination of all namespace flags defined by the kernel. The right type for this isn't clear. setns() and
+ * unshare() expect these flags to be passed as (signed) "int", while clone() wants them as "unsigned long". The latter
+ * is definitely more appropriate for a flags parameter, and also the larger type of the two, hence let's stick to that
+ * here. */
+#define NAMESPACE_FLAGS_ALL \
+ ((unsigned long) (CLONE_NEWCGROUP| \
+ CLONE_NEWIPC| \
+ CLONE_NEWNET| \
+ CLONE_NEWNS| \
+ CLONE_NEWPID| \
+ CLONE_NEWUSER| \
+ CLONE_NEWUTS))
+
+#define NAMESPACE_FLAGS_INITIAL ((unsigned long) -1)
+
+int namespace_flags_from_string(const char *name, unsigned long *ret);
+int namespace_flags_to_string(unsigned long flags, char **ret);
+
+struct namespace_flag_map {
+ unsigned long flag;
+ const char *name;
+};
+
+extern const struct namespace_flag_map namespace_flag_map[];