first commit

etc_org/libnl-3/pktloc

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+#
+# Location definitions for packet matching
+#
+
+# name		alignment	offset		mask		shift
+ip.version	u8		net+0		0xF0		4
+ip.hdrlen	u8		net+0		0x0F
+ip.diffserv	u8		net+1
+ip.length	u16		net+2
+ip.id		u16		net+4
+ip.flag.res	u8		net+6		0xff		7
+ip.df		u8		net+6		0x40		6
+ip.mf		u8		net+6		0x20		5
+ip.offset	u16		net+6		0x1FFF
+ip.ttl		u8		net+8
+ip.proto	u8		net+9
+ip.chksum	u16		net+10
+ip.src		u32		net+12
+ip.dst		u32		net+16
+
+# if ip.ihl > 5
+ip.opts		u32		net+20
+
+
+#
+# IP version 6
+#
+# name		alignment	offset		mask		shift
+ip6.version	u8		net+0		0xF0		4
+ip6.tc		u16		net+0		0xFF0		4
+ip6.flowlabel	u32		net+0		0xFFFFF
+ip6.length	u16		net+4
+ip6.nexthdr	u8		net+6
+ip6.hoplimit	u8		net+7
+ip6.src		16		net+8
+ip6.dst		16		net+24
+
+#
+# Transmission Control Protocol (TCP)
+#
+# name		alignment	offset		mask		shift
+tcp.sport	u16		tcp+0
+tcp.dport	u16		tcp+2
+tcp.seq		u32		tcp+4
+tcp.ack		u32		tcp+8
+
+# Data offset (4 bits)
+tcp.off		u8		tcp+12		0xF0		4
+
+# Reserved [0 0 0] (3 bits)
+tcp.reserved	u8		tcp+12		0x04		1
+
+# ECN [N C E] (3 bits)
+tcp.ecn		u16		tcp+12		0x01C00		6
+
+# Individual TCP flags (0|1) (6 bits in total)
+tcp.flag.urg	u8		tcp+13		0x20		5
+tcp.flag.ack	u8		tcp+13		0x10		4
+tcp.flag.psh	u8		tcp+13		0x08		3
+tcp.flag.rst	u8		tcp+13		0x04		2
+tcp.flag.syn	u8		tcp+13		0x02		1
+tcp.flag.fin	u8		tcp+13		0x01
+
+tcp.win		u16		tcp+14
+tcp.csum	u16		tcp+16
+tcp.urg		u16		tcp+18
+tcp.opts	u32		tcp+20
+
+#
+# User Datagram Protocol (UDP)
+#
+# name		alignment	offset		mask		shift
+udp.sport	u16		tcp+0
+udp.dport	u16		tcp+2
+udp.length	u16		tcp+4
+udp.csum	u16		tcp+6