Add build system scaffolding and libc headers

1 files changed, 56 insertions, 0 deletions

diff --git a/include/arch/x86_64/linux/nsfs.h b/include/arch/x86_64/linux/nsfs.h
new file mode 100644
index 00000000..5d6903b4
--- /dev/null
+++ b/include/arch/x86_64/linux/nsfs.h
@@ -0,0 +1,56 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef __LINUX_NSFS_H
+#define __LINUX_NSFS_H
+
+#include <linux/ioctl.h>
+#include <linux/types.h>
+
+#define NSIO 0xb7
+
+/* Returns a file descriptor that refers to an owning user namespace */
+#define NS_GET_USERNS _IO(NSIO, 0x1)
+/* Returns a file descriptor that refers to a parent namespace */
+#define NS_GET_PARENT _IO(NSIO, 0x2)
+/* Returns the type of namespace (CLONE_NEW* value) referred to by
+   file descriptor */
+#define NS_GET_NSTYPE _IO(NSIO, 0x3)
+/* Get owner UID (in the caller's user namespace) for a user namespace */
+#define NS_GET_OWNER_UID _IO(NSIO, 0x4)
+/* Get the id for a mount namespace */
+#define NS_GET_MNTNS_ID _IOR(NSIO, 0x5, __u64)
+/* Translate pid from target pid namespace into the caller's pid namespace. */
+#define NS_GET_PID_FROM_PIDNS _IOR(NSIO, 0x6, int)
+/* Return thread-group leader id of pid in the callers pid namespace. */
+#define NS_GET_TGID_FROM_PIDNS _IOR(NSIO, 0x7, int)
+/* Translate pid from caller's pid namespace into a target pid namespace. */
+#define NS_GET_PID_IN_PIDNS _IOR(NSIO, 0x8, int)
+/* Return thread-group leader id of pid in the target pid namespace. */
+#define NS_GET_TGID_IN_PIDNS _IOR(NSIO, 0x9, int)
+
+struct mnt_ns_info {
+	__u32 size;
+	__u32 nr_mounts;
+	__u64 mnt_ns_id;
+};
+
+#define MNT_NS_INFO_SIZE_VER0 16 /* size of first published struct */
+
+/* Get information about namespace. */
+#define NS_MNT_GET_INFO _IOR(NSIO, 10, struct mnt_ns_info)
+/* Get next namespace. */
+#define NS_MNT_GET_NEXT _IOR(NSIO, 11, struct mnt_ns_info)
+/* Get previous namespace. */
+#define NS_MNT_GET_PREV _IOR(NSIO, 12, struct mnt_ns_info)
+
+enum init_ns_ino {
+	IPC_NS_INIT_INO = 0xEFFFFFFFU,
+	UTS_NS_INIT_INO = 0xEFFFFFFEU,
+	USER_NS_INIT_INO = 0xEFFFFFFDU,
+	PID_NS_INIT_INO = 0xEFFFFFFCU,
+	CGROUP_NS_INIT_INO = 0xEFFFFFFBU,
+	TIME_NS_INIT_INO = 0xEFFFFFFAU,
+	NET_NS_INIT_INO = 0xEFFFFFF9U,
+	MNT_NS_INIT_INO = 0xEFFFFFF8U,
+};
+
+#endif /* __LINUX_NSFS_H */