v4.19.13 snapshot.
diff --git a/include/linux/inet.h b/include/linux/inet.h
new file mode 100644
index 0000000..97defc1
--- /dev/null
+++ b/include/linux/inet.h
@@ -0,0 +1,64 @@
+/*
+ * Swansea University Computer Society NET3
+ *
+ * This work is derived from NET2Debugged, which is in turn derived
+ * from NET2D which was written by:
+ * Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
+ *
+ * This work was derived from Ross Biro's inspirational work
+ * for the LINUX operating system. His version numbers were:
+ *
+ * $Id: Space.c,v 0.8.4.5 1992/12/12 19:25:04 bir7 Exp $
+ * $Id: arp.c,v 0.8.4.6 1993/01/28 22:30:00 bir7 Exp $
+ * $Id: arp.h,v 0.8.4.6 1993/01/28 22:30:00 bir7 Exp $
+ * $Id: dev.c,v 0.8.4.13 1993/01/23 18:00:11 bir7 Exp $
+ * $Id: dev.h,v 0.8.4.7 1993/01/23 18:00:11 bir7 Exp $
+ * $Id: eth.c,v 0.8.4.4 1993/01/22 23:21:38 bir7 Exp $
+ * $Id: eth.h,v 0.8.4.1 1992/11/10 00:17:18 bir7 Exp $
+ * $Id: icmp.c,v 0.8.4.9 1993/01/23 18:00:11 bir7 Exp $
+ * $Id: icmp.h,v 0.8.4.2 1992/11/15 14:55:30 bir7 Exp $
+ * $Id: ip.c,v 0.8.4.8 1992/12/12 19:25:04 bir7 Exp $
+ * $Id: ip.h,v 0.8.4.2 1993/01/23 18:00:11 bir7 Exp $
+ * $Id: loopback.c,v 0.8.4.8 1993/01/23 18:00:11 bir7 Exp $
+ * $Id: packet.c,v 0.8.4.7 1993/01/26 22:04:00 bir7 Exp $
+ * $Id: protocols.c,v 0.8.4.3 1992/11/15 14:55:30 bir7 Exp $
+ * $Id: raw.c,v 0.8.4.12 1993/01/26 22:04:00 bir7 Exp $
+ * $Id: sock.c,v 0.8.4.6 1993/01/28 22:30:00 bir7 Exp $
+ * $Id: sock.h,v 0.8.4.7 1993/01/26 22:04:00 bir7 Exp $
+ * $Id: tcp.c,v 0.8.4.16 1993/01/26 22:04:00 bir7 Exp $
+ * $Id: tcp.h,v 0.8.4.7 1993/01/22 22:58:08 bir7 Exp $
+ * $Id: timer.c,v 0.8.4.8 1993/01/23 18:00:11 bir7 Exp $
+ * $Id: timer.h,v 0.8.4.2 1993/01/23 18:00:11 bir7 Exp $
+ * $Id: udp.c,v 0.8.4.12 1993/01/26 22:04:00 bir7 Exp $
+ * $Id: udp.h,v 0.8.4.1 1992/11/10 00:17:18 bir7 Exp $
+ * $Id: we.c,v 0.8.4.10 1993/01/23 18:00:11 bir7 Exp $
+ * $Id: wereg.h,v 0.8.4.1 1992/11/10 00:17:18 bir7 Exp $
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+#ifndef _LINUX_INET_H
+#define _LINUX_INET_H
+
+#include <linux/types.h>
+#include <net/net_namespace.h>
+#include <linux/socket.h>
+
+/*
+ * These mimic similar macros defined in user-space for inet_ntop(3).
+ * See /usr/include/netinet/in.h .
+ */
+#define INET_ADDRSTRLEN (16)
+#define INET6_ADDRSTRLEN (48)
+
+extern __be32 in_aton(const char *str);
+extern int in4_pton(const char *src, int srclen, u8 *dst, int delim, const char **end);
+extern int in6_pton(const char *src, int srclen, u8 *dst, int delim, const char **end);
+
+extern int inet_pton_with_scope(struct net *net, unsigned short af,
+ const char *src, const char *port, struct sockaddr_storage *addr);
+extern bool inet_addr_is_any(struct sockaddr *addr);
+
+#endif /* _LINUX_INET_H */