Introduce netns API
Write a new API and implementation to manage network namespace related
operations.
This will be used by the upcoming tundev module.
Change-Id: I0f2fba2fa42250a07211a7b7f479498f27c529da
diff --git a/include/osmocom/core/netns.h b/include/osmocom/core/netns.h
new file mode 100644
index 0000000..5bbf224
--- /dev/null
+++ b/include/osmocom/core/netns.h
@@ -0,0 +1,24 @@
+/*! \file netns.h
+ * Network namespace convenience functions. */
+
+#pragma once
+#if (!EMBEDDED)
+
+#if defined(__linux__)
+
+#include <signal.h>
+
+struct osmo_netns_switch_state {
+ sigset_t prev_sigmask;
+ int prev_nsfd;
+};
+
+int osmo_netns_open_fd(const char *name);
+int osmo_netns_switch_enter(int nsfd, struct osmo_netns_switch_state *state);
+int osmo_netns_switch_exit(struct osmo_netns_switch_state *state);
+
+
+#endif /* defined(__linux__) */
+
+#endif /* (!EMBEDDED) */
+/*! @} */