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-rwxr-xr-xsrc/vnet/map/gen-rules.py107
1 files changed, 107 insertions, 0 deletions
diff --git a/src/vnet/map/gen-rules.py b/src/vnet/map/gen-rules.py
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+#!/usr/bin/env python
+
+# Copyright (c) 2015 Cisco and/or its affiliates.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at:
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+import ipaddress
+import argparse
+import sys
+
+# map add domain ip4-pfx <pfx> ip6-pfx ::/0 ip6-src <ip6-src> ea-bits-len 0 psid-offset 6 psid-len 6
+# map add rule index <0> psid <psid> ip6-dst <ip6-dst>
+
+parser = argparse.ArgumentParser(description='MAP VPP configuration generator')
+parser.add_argument('-t', action="store", dest="mapmode")
+args = parser.parse_args()
+
+#
+# 1:1 Shared IPv4 address, shared BR
+#
+def shared11br():
+ ip4_pfx = ipaddress.ip_network('20.0.0.0/16')
+ ip6_dst = ipaddress.ip_network('bbbb::/32')
+ psid_len = 6
+ for i in range(ip4_pfx.num_addresses):
+ print("map add domain ip4-pfx " + str(ip4_pfx[i]) + "/32 ip6-pfx ::/0 ip6-shared-src cccc:bbbb::1",
+ "ea-bits-len 0 psid-offset 6 psid-len", psid_len)
+ for psid in range(0x1 << psid_len):
+ print("map add rule index", i, "psid", psid, "ip6-dst", ip6_dst[(i * (0x1<<psid_len)) + psid])
+
+
+#
+# 1:1 Shared IPv4 address
+#
+def shared11():
+ ip4_pfx = ipaddress.ip_network('20.0.0.0/16')
+ ip6_src = ipaddress.ip_network('cccc:bbbb::/64')
+ ip6_dst = ipaddress.ip_network('bbbb::/32')
+ psid_len = 6
+ for i in range(ip4_pfx.num_addresses):
+ print("map add domain ip4-pfx " + str(ip4_pfx[i]) + "/32 ip6-pfx ::/0 ip6-src", ip6_src[i],
+ "ea-bits-len 0 psid-offset 6 psid-len", psid_len)
+ for psid in range(0x1 << psid_len):
+ print("map add rule index", i, "psid", psid, "ip6-dst", ip6_dst[(i * (0x1<<psid_len)) + psid])
+
+#
+# 1:1 Shared IPv4 address small
+#
+def smallshared11():
+ ip4_pfx = ipaddress.ip_network('20.0.0.0/24')
+ ip6_src = ipaddress.ip_network('cccc:bbbb::/64')
+ ip6_dst = ipaddress.ip_network('bbbb::/32')
+ psid_len = 6
+ for i in range(ip4_pfx.num_addresses):
+ print("map add domain ip4-pfx " + str(ip4_pfx[i]) + "/32 ip6-pfx ::/0 ip6-src", ip6_src[i],
+ "ea-bits-len 0 psid-offset 6 psid-len", psid_len)
+ for psid in range(0x1 << psid_len):
+ print("map add rule index", i, "psid", psid, "ip6-dst", ip6_dst[(i * (0x1<<psid_len)) + psid])
+
+#
+# 1:1 Full IPv4 address
+#
+def full11():
+ ip4_pfx = ipaddress.ip_network('20.0.0.0/16')
+ ip6_src = ipaddress.ip_network('cccc:bbbb::/64')
+ ip6_dst = ipaddress.ip_network('bbbb::/32')
+ psid_len = 0
+ for i in range(ip4_pfx.num_addresses):
+ print("map add domain ip4-pfx " + str(ip4_pfx[i]) + "/32 ip6-pfx " + str(ip6_dst[i]) + "/128 ip6-src", ip6_src[i],
+ "ea-bits-len 0 psid-offset 0 psid-len 0")
+def full11br():
+ ip4_pfx = ipaddress.ip_network('20.0.0.0/16')
+ ip6_dst = ipaddress.ip_network('bbbb::/32')
+ psid_len = 0
+ for i in range(ip4_pfx.num_addresses):
+ print("map add domain ip4-pfx " + str(ip4_pfx[i]) + "/32 ip6-pfx " + str(ip6_dst[i]) + "/128 ip6-shared-src cccc:bbbb::1",
+ "ea-bits-len 0 psid-offset 0 psid-len 0")
+
+#
+# Algorithmic mapping Shared IPv4 address
+#
+def algo():
+ print("map add domain ip4-pfx 20.0.0.0/24 ip6-pfx bbbb::/32 ip6-src cccc:bbbb::1 ea-bits-len 16 psid-offset 6 psid-len 8")
+ print("map add domain ip4-pfx 20.0.1.0/24 ip6-pfx bbbb:1::/32 ip6-src cccc:bbbb::2 ea-bits-len 8 psid-offset 0 psid-len 0")
+
+#
+# IP4 forwarding
+#
+def ip4():
+ ip4_pfx = ipaddress.ip_network('20.0.0.0/16')
+ for i in range(ip4_pfx.num_addresses):
+ print("ip route add " + str(ip4_pfx[i]) + "/32 via 172.16.0.2")
+
+
+globals()[args.mapmode]()
+
+