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authorbigbiff <bigbiff@teamw.in>2015-01-02 01:44:14 +0100
committerDees Troy <dees_troy@teamw.in>2015-01-05 04:38:42 +0100
commit7b4c7a681cc4c0a53dc8a8baf4853e921cfbf5de (patch)
treefb69cb515cb4ab675d5850684cc402100b7a2a22 /libblkid/include/namespace.h
parentcrypto: remove unused libs and clean up makefile (diff)
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Diffstat (limited to 'libblkid/include/namespace.h')
-rw-r--r--libblkid/include/namespace.h44
1 files changed, 44 insertions, 0 deletions
diff --git a/libblkid/include/namespace.h b/libblkid/include/namespace.h
new file mode 100644
index 000000000..ea231cacb
--- /dev/null
+++ b/libblkid/include/namespace.h
@@ -0,0 +1,44 @@
+/* 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_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
+
+# 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 */