Add the rt linux 4.1.3-rt3 as base

Import the rt linux 4.1.3-rt3 as OPNFV kvm base.

It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:

commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date:   Sat Jul 25 12:13:34 2015 +0200

    Prepare v4.1.3-rt3

    Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.

Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>

1 files changed, 33 insertions, 0 deletions

diff --git a/kernel/include/linux/netfilter/nf_conntrack_ftp.h b/kernel/include/linux/netfilter/nf_conntrack_ftp.h
new file mode 100644
index 000000000..5f818b01e
--- /dev/null
+++ b/kernel/include/linux/netfilter/nf_conntrack_ftp.h
@@ -0,0 +1,33 @@
+#ifndef _NF_CONNTRACK_FTP_H
+#define _NF_CONNTRACK_FTP_H
+
+#include <uapi/linux/netfilter/nf_conntrack_ftp.h>
+
+
+#define FTP_PORT	21
+
+#define NF_CT_FTP_SEQ_PICKUP	(1 << 0)
+
+#define NUM_SEQ_TO_REMEMBER 2
+/* This structure exists only once per master */
+struct nf_ct_ftp_master {
+	/* Valid seq positions for cmd matching after newline */
+	u_int32_t seq_aft_nl[IP_CT_DIR_MAX][NUM_SEQ_TO_REMEMBER];
+	/* 0 means seq_match_aft_nl not set */
+	u_int16_t seq_aft_nl_num[IP_CT_DIR_MAX];
+	/* pickup sequence tracking, useful for conntrackd */
+	u_int16_t flags[IP_CT_DIR_MAX];
+};
+
+struct nf_conntrack_expect;
+
+/* For NAT to hook in when we find a packet which describes what other
+ * connection we should expect. */
+extern unsigned int (*nf_nat_ftp_hook)(struct sk_buff *skb,
+				       enum ip_conntrack_info ctinfo,
+				       enum nf_ct_ftp_type type,
+				       unsigned int protoff,
+				       unsigned int matchoff,
+				       unsigned int matchlen,
+				       struct nf_conntrack_expect *exp);
+#endif /* _NF_CONNTRACK_FTP_H */