Adding upstream version 2.38.1.upstream/2.38.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 56 insertions, 0 deletions

diff --git a/include/namespace.h b/include/namespace.h
new file mode 100644
index 0000000..2d0a56e
--- /dev/null
+++ b/include/namespace.h
@@ -0,0 +1,56 @@
+
+/*
+ * No copyright is claimed.  This code is in the public domain; do with
+ * it what you wish.
+ *
+ * Compat code so unshare and setns can be used with older libcs
+ */
+#ifndef UTIL_LINUX_NAMESPACE_H
+# define UTIL_LINUX_NAMESPACE_H
+
+# include <sched.h>
+
+# ifndef CLONE_NEWNS
+#  define CLONE_NEWNS 0x00020000
+# endif
+# ifndef CLONE_NEWCGROUP
+#  define CLONE_NEWCGROUP 0x02000000
+# endif
+# ifndef CLONE_NEWUTS
+#  define CLONE_NEWUTS 0x04000000
+# endif
+# ifndef CLONE_NEWIPC
+#  define CLONE_NEWIPC 0x08000000
+# endif
+# ifndef CLONE_NEWNET
+#  define CLONE_NEWNET 0x40000000
+# endif
+# ifndef CLONE_NEWUSER
+#  define CLONE_NEWUSER 0x10000000
+# endif
+# ifndef CLONE_NEWPID
+#  define CLONE_NEWPID 0x20000000
+# endif
+# ifndef CLONE_NEWTIME
+#  define CLONE_NEWTIME 0x00000080
+# endif
+
+# if !defined(HAVE_UNSHARE) || !defined(HAVE_SETNS)
+#  include <sys/syscall.h>
+# endif
+
+# if !defined(HAVE_UNSHARE) && defined(SYS_unshare)
+static inline int unshare(int flags)
+{
+	return syscall(SYS_unshare, flags);
+}
+# endif
+
+# if !defined(HAVE_SETNS) && defined(SYS_setns)
+static inline int setns(int fd, int nstype)
+{
+	return syscall(SYS_setns, fd, nstype);
+}
+# endif
+
+#endif	/* UTIL_LINUX_NAMESPACE_H */