From c09e06a6efaa94768660636a9c58ce9666e29d05 Mon Sep 17 00:00:00 2001
From: Tobias Klauser <tklauser@distanz.ch>
Date: Fri, 22 Apr 2016 16:55:31 +0200
Subject: trafgen: proto: Add IPv6 header generation

Support for generating simple IPv6 headers using the 'ip6()/ipv6()'
trafgen generation function.

Fields supported:

  ver|version      Version (default: 6)
  tc|tclass        Traffic class (default: 0)
  fl|flow          Flow Label (default: 0)
  len|length       Payload length (calculated by default)
  nh|nexthdr       Type of next header (default: 0)
  hl|hoplimit|ttl  Hop Limit, TTL (default: 0)
  sa|saddr         Source IPv6 address (default: device address)
  da|daddr         Destination IPv6 address (default: 0:0:0:0:0:0:0:0)

Examples:

  { eth(), ipv6(daddr=1:2:3:4:5:6:7:8) }
  { ipv6(tc=2, hl=3, daddr=::1) }
  { eth(), ipv6(nh=58, sa=2001:db8::, da=::1), 128, 0, 0x52, 0x03, 0, 0, 0, 0 }

If not explicitely specified, the lower header is initialized as Ethernet.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
---
 trafgen.8 | 39 ++++++++++++++++++++++++++++++++++++++-
 1 file changed, 38 insertions(+), 1 deletion(-)

(limited to 'trafgen.8')

diff --git a/trafgen.8 b/trafgen.8
index 300277b..c81fecb 100644
--- a/trafgen.8
+++ b/trafgen.8
@@ -424,7 +424,7 @@ destination MAC address is set to the broadcast address (ff:ff:ff:ff:ff:ff).
 - Explicit Congestion Notification (ECN) field (default: 0)
 .sp
 .B len|length
-- Total length of header and data (calculated by default)
+- Total length of header and payload (calculated by default)
 .sp
 .B id
 - IPv4 datagram identification (default: 0)
@@ -461,6 +461,43 @@ By default, if the lower level header is Ethernet, its EtherType field is set to
 0x0800 (IPv4). If the lower level header is IPv4, its protocol field is set to
 0x4 (IP-in-IP).
 
+.I IPv6
+:
+.B ip6|ipv6(ver=<number>, class=<number>, flow=<number> len=<number>,
+.B nexthdr=<number>, hoplimit=<number>,
+.in +16
+.B da=<ip6_addr>, sa=<ip6_addr>)
+.in -16
+.sp
+.in +4
+.B ver|version
+- Version field (default: 6)
+.sp
+.B tc|tclass
+- Traffic class (default: 0)
+.sp
+.B fl|flow
+- Flow label (default: 0)
+.sp
+.B len|length
+- Payload length (calculated by default)
+.sp
+.B nh|nexthdr
+- Type of next header, i.e. transport layer protocol number (default: 0)
+.sp
+.B hl|hoplimit|ttl
+- Hop limit, i.e. time to live (default: 0)
+.sp
+.B sa|saddr
+- Source IPv6 address (default: device IPv6 address)
+.sp
+.B da|daddr
+- Destination IPv6 address (default: 0:0:0:0:0:0:0:0)
+.in -4
+.sp
+By default, if the lower level header is Ethernet, its EtherType field is set to
+0x86DD (IPv6).
+
 .I UDP
 :
 .B udp(sp=<number>, dp=<number>, len=<number>, csum=<number>)
-- 
cgit v1.2.3-54-g00ecf