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| author | Isaku Yamahata <yamahata@valinux.co.jp> | 2013-04-13 23:47:35 +0900 |
|---|---|---|
| committer | FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> | 2013-04-16 02:47:45 +0900 |
| commit | e20fcad468a1f4043ca4eaa70d931e2519ada6e2 (patch) | |
| tree | 88b863cbecc2322a20ebdc88fa985fbf77900509 | |
| parent | 3f3b683d204ced69154ce08ca74863dda4ba8415 (diff) | |
lib/packet/arp.py: add convenience function to create arp for ip
Since ip case is most often used, introduce a convenience
function for that.
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
| -rw-r--r-- | ryu/lib/packet/arp.py | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/ryu/lib/packet/arp.py b/ryu/lib/packet/arp.py index 3cef38dc..9d0b3f8c 100644 --- a/ryu/lib/packet/arp.py +++ b/ryu/lib/packet/arp.py @@ -14,6 +14,8 @@ # limitations under the License. import struct + +from ryu.ofproto import ether from . import packet_base ARP_HW_TYPE_ETHERNET = 1 # ethernet hardware type @@ -55,3 +57,10 @@ class arp(packet_base.PacketBase): self.hlen, self.plen, self.opcode, self.src_mac, self.src_ip, self.dst_mac, self.dst_ip) + + +def arp_ip(opcode, src_mac, src_ip, dst_mac, dst_ip): + return arp(ARP_HW_TYPE_ETHERNET, ether.ETH_TYPE_IP, + 6, # ether mac address length + 4, # ipv4 address length, + opcode, src_mac, src_ip, dst_mac, dst_ip) |