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GRE over IPv6

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Refactors the GRE node to work with both IPv4 and IPv6 transports.

Note that this changes the binary configuration API to support both
address families; each address uses the same memory for either
address type and a flag to indicate which is in use.

The CLI and VAT syntax remains unchanged; the code detects whether
an IPv4 or an IPv6 address was given.

Configuration examples:

IPv4 CLI: create gre tunnel src 192.168.1.1 dst 192.168.1.2
IPv6 CLI: create gre tunnel src 2620:124:9000::1 dst 2620:124:9000::2

IPv4 VAT: gre_add_del_tunnel src 192.168.1.1 dst 192.168.1.2
IPv6 VAT: gre_add_del_tunnel src 2620:124:9000::1 dst 2620:124:9000::2

Change-Id: Ica8ee775dc101047fb8cd41617ddc8fafc2741b0
Signed-off-by: Ciara Loftus <ciara.loftus@intel.com>
This commit is contained in:
Ciara Loftus
2016-09-30 15:47:03 +01:00
parent 63d5bae640
commit 7eac916e1b
9 changed files with 783 additions and 193 deletions
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35
test/vpp_gre_interface.py
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@ -34,3 +34,38 @@ class VppGreInterface(VppInterface):
r = self.test.vapi.gre_tunnel_add_del(s, d,
outer_fib_id=self.t_outer_fib,
is_add=0)
class VppGre6Interface(VppInterface):
"""
VPP GRE IPv6 interface
"""
def __init__(self, test, src_ip, dst_ip, outer_fib_id=0, is_teb=0):
""" Create VPP loopback interface """
self._sw_if_index = 0
super(VppGre6Interface, self).__init__(test)
self._test = test
self.t_src = src_ip
self.t_dst = dst_ip
self.t_outer_fib = outer_fib_id
self.t_is_teb = is_teb
def add_vpp_config(self):
s = socket.inet_pton(socket.AF_INET6, self.t_src)
d = socket.inet_pton(socket.AF_INET6, self.t_dst)
r = self.test.vapi.gre_tunnel_add_del(s, d,
outer_fib_id=self.t_outer_fib,
is_teb=self.t_is_teb,
is_ip6=1)
self._sw_if_index = r.sw_if_index
self.generate_remote_hosts()
def remove_vpp_config(self):
s = socket.inet_pton(socket.AF_INET6, self.t_src)
d = socket.inet_pton(socket.AF_INET6, self.t_dst)
self.unconfig()
r = self.test.vapi.gre_tunnel_add_del(s, d,
outer_fib_id=self.t_outer_fib,
is_add=0,
is_ip6=1)