vnet/vnet/map/examples/gen-rules.py

   1 #!/usr/bin/env python3.4
   2
   3 # Copyright (c) 2015 Cisco and/or its affiliates.
   4 # Licensed under the Apache License, Version 2.0 (the "License");
   5 # you may not use this file except in compliance with the License.
   6 # You may obtain a copy of the License at:
   7 #
   8 #     http://www.apache.org/licenses/LICENSE-2.0
   9 #
  10 # Unless required by applicable law or agreed to in writing, software
  11 # distributed under the License is distributed on an "AS IS" BASIS,
  12 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13 # See the License for the specific language governing permissions and
  14 # limitations under the License.
  15
  16 import ipaddress
  17 import argparse
  18 import sys
  19
  20 # map add domain ip4-pfx <pfx> ip6-pfx ::/0 ip6-src <ip6-src> ea-bits-len 0 psid-offset 6 psid-len 6
  21 # map add rule index <0> psid <psid> ip6-dst <ip6-dst>
  22
  23 parser = argparse.ArgumentParser(description='MAP VPP configuration generator')
  24 parser.add_argument('-t', action="store", dest="mapmode")
  25 args = parser.parse_args()
  26
  27 #
  28 # 1:1 Shared IPv4 address, shared BR, Terastream
  29 #
  30 def terastream():
  31     ip4_pfx = ipaddress.ip_network('20.0.0.0/22')
  32     ip6_dst = ipaddress.ip_network('bbbb::/32')
  33     psid_len = 6
  34     ip6_src = ipaddress.ip_address('cccc:bbbb::')
  35     for i in range(ip4_pfx.num_addresses):
  36         if not i % 64:
  37             ip6_src = ip6_src + 1
  38         print("map add domain ip4-pfx " + str(ip4_pfx[i]) +  "/32 ip6-pfx ::/0 ip6-src " + str(ip6_src) +
  39               " ea-bits-len 0 psid-offset 0 psid-len", psid_len)
  40         for psid in range(0x1 << psid_len):
  41             print("map add rule index", i, "psid", psid, "ip6-dst", ip6_dst[(i * (0x1<<psid_len)) + psid])
  42
  43 #
  44 # 1:1 Shared IPv4 address, shared BR, OTE
  45 #
  46 def oteshared11():
  47     ip4_pfx = ipaddress.ip_network('2.84.63.0/24')
  48     dst = list(ipaddress.ip_network('2a02:580:8c00::/40').subnets(new_prefix=56))
  49     psid_len = 6
  50     ip6_src = ipaddress.ip_address('2a02::')
  51     for i in range(ip4_pfx.num_addresses):
  52         if not i % 64:
  53             ip6_src = ip6_src + 1
  54         print("map add domain ip4-pfx " + str(ip4_pfx[i]) +  "/32 ip6-pfx ::/0 ip6-src " + str(ip6_src) +
  55               " ea-bits-len 0 psid-offset 6 psid-len", psid_len)
  56         for psid in range(0x1 << psid_len):
  57             enduserprefix = list(dst.pop(0).subnets(new_prefix=64))[255-1]
  58             print("map add rule index", i, "psid", psid, "ip6-dst", enduserprefix[(i * (0x1<<psid_len)) + psid])
  59
  60
  61 #
  62 # 1:1 Shared IPv4 address, shared BR, Terastream
  63 #
  64 def confdterastream():
  65     ip4_pfx = ipaddress.ip_network('20.0.0.0/22')
  66     ip6_dst = ipaddress.ip_network('bbbb::/32')
  67     psid_len = 6
  68     ip6_src = ipaddress.ip_address('cccc:bbbb::')
  69     for i in range(ip4_pfx.num_addresses):
  70         if not i % 64:
  71             ip6_src = ip6_src + 1
  72         print("vpp softwire softwire-instances softwire-instance", i, "br-ipv6 " + str(ip6_src) + " ipv6-prefix ::/0" + " ipv4-prefix " + str(ip4_pfx[i]) +
  73               "/32 ea-len 0 psid-offset 6 psid-len", psid_len)
  74 #        print("vpp softwire softwire-instances softwire-instance", i, "ipv4-pfx " + str(ip4_pfx[i]) +  "/32 ipv6-pfx ::/0 br-ipv6 " + str(ip6_src) +
  75 #              " ea-len 0 psid-offset 6 psid-len", psid_len)
  76         for psid in range(0x1 << psid_len):
  77             print("binding", psid, "ipv6-addr", ip6_dst[(i * (0x1<<psid_len)) + psid])
  78
  79 def shared11br_yang():
  80     ip4_pfx = ipaddress.ip_network('20.0.0.0/16')
  81     ip6_dst = ipaddress.ip_network('bbbb::/32')
  82     psid_len = 6
  83     for i in range(ip4_pfx.num_addresses):
  84         print("vpp softwire softwire-instances softwire-instance " + str(i) + " ipv4-prefix " + str(ip4_pfx[i]) + "/32 " +
  85                 "ipv6-prefix ::/0 ea-len 0 psid-offset 6 tunnel-mtu 1234 psid-len", psid_len)
  86         #print("map add domain ip4-pfx " + str(ip4_pfx[i]) +  "/32 ip6-pfx ::/0 ip6-shared-src cccc:bbbb::1",
  87         #      "ea-bits-len 0 psid-offset 6 psid-len", psid_len)
  88         for psid in range(0x1 << psid_len):
  89             # print("map add rule index", i, "psid", psid, "ip6-dst", ip6_dst[(i * (0x1<<psid_len)) + psid])
  90             print("binding", psid, "ipv6-addr", ip6_dst[(i * (0x1<<psid_len)) + psid])
  91
  92 def shared11br_xml():
  93     ip4_pfx = ipaddress.ip_network('20.0.0.0/32')
  94     ip6_dst = ipaddress.ip_network('bbbb::/32')
  95     ip6_src = ipaddress.ip_address('cccc:bbbb::')
  96     psid_len = 6
  97     print('<vpp xmlns="http://www.cisco.com/yang/cisco-vpp"><softwire><softwire-instances>');
  98     count = 1024;
  99     for i in range(ip4_pfx.num_addresses):
 100         if not i % 64:
 101             ip6_src = ip6_src + 1
 102         if count == 0:
 103             break;
 104         count = count - 1;
 105         print('<softwire-instance>')
 106         print('  <id>'+ str(i)+ '</id>')
 107         print('  <ipv4-prefix>'+ str(ip4_pfx[i])+ '/32</ipv4-prefix>')
 108         print('  <ipv6-prefix>::/0</ipv6-prefix>')
 109         print('  <ea-len>0</ea-len>')
 110         print('  <psid-offset>0</psid-offset>')
 111         print('  <psid-len>'+ str(psid_len) + '</psid-len>')
 112         for psid in range(0x1 << psid_len):
 113             print('  <binding>')
 114             print('    <psid>', psid, '</psid>')
 115             print('    <ipv6-addr>'+ str(ip6_dst[(i * (0x1<<psid_len)) + psid]) + '</ipv6-addr>')
 116             print('  </binding>')
 117         print('</softwire-instance>')
 118     print('</softwire-instances></softwire>')
 119     print('</vpp>')
 120
 121 #
 122 # 1:1 Shared IPv4 address, shared BR
 123 #
 124 def shared11br():
 125     ip4_pfx = ipaddress.ip_network('20.0.0.0/16')
 126     ip6_dst = ipaddress.ip_network('bbbb::/32')
 127     psid_len = 6
 128     for i in range(ip4_pfx.num_addresses):
 129         print("map add domain ip4-pfx " + str(ip4_pfx[i]) +  "/32 ip6-pfx ::/0 ip6-shared-src cccc:bbbb::1",
 130               "ea-bits-len 0 psid-offset 6 psid-len", psid_len)
 131         for psid in range(0x1 << psid_len):
 132             print("map add rule index", i, "psid", psid, "ip6-dst", ip6_dst[(i * (0x1<<psid_len)) + psid])
 133
 134 #
 135 # 1:1 Shared IPv4 address, shared BR
 136 #
 137 def shared11br():
 138     ip4_pfx = ipaddress.ip_network('20.0.0.0/16')
 139     ip6_dst = ipaddress.ip_network('bbbb::/32')
 140     psid_len = 6
 141     for i in range(ip4_pfx.num_addresses):
 142         print("map add domain ip4-pfx " + str(ip4_pfx[i]) +  "/32 ip6-pfx ::/0 ip6-shared-src cccc:bbbb::1",
 143               "ea-bits-len 0 psid-offset 6 psid-len", psid_len)
 144         for psid in range(0x1 << psid_len):
 145             print("map add rule index", i, "psid", psid, "ip6-dst", ip6_dst[(i * (0x1<<psid_len)) + psid])
 146
 147
 148 #
 149 # 1:1 Shared IPv4 address
 150 #
 151 def shared11():
 152     ip4_pfx = ipaddress.ip_network('20.0.0.0/16')
 153     ip6_src = ipaddress.ip_network('cccc:bbbb::/64')
 154     ip6_dst = ipaddress.ip_network('bbbb::/32')
 155     psid_len = 6
 156     for i in range(ip4_pfx.num_addresses):
 157         print("map add domain ip4-pfx " + str(ip4_pfx[i]) +  "/32 ip6-pfx ::/0 ip6-src", ip6_src[i],
 158               "ea-bits-len 0 psid-offset 6 psid-len", psid_len)
 159         for psid in range(0x1 << psid_len):
 160             print("map add rule index", i, "psid", psid, "ip6-dst", ip6_dst[(i * (0x1<<psid_len)) + psid])
 161
 162 #
 163 # 1:1 Shared IPv4 address small
 164 #
 165 def smallshared11():
 166     ip4_pfx = ipaddress.ip_network('20.0.0.0/24')
 167     ip6_src = ipaddress.ip_network('cccc:bbbb::/64')
 168     ip6_dst = ipaddress.ip_network('bbbb::/32')
 169     psid_len = 6
 170     for i in range(ip4_pfx.num_addresses):
 171         print("map add domain ip4-pfx " + str(ip4_pfx[i]) +  "/32 ip6-pfx ::/0 ip6-src", ip6_src[i],
 172               "ea-bits-len 0 psid-offset 6 psid-len", psid_len)
 173         for psid in range(0x1 << psid_len):
 174             print("map add rule index", i, "psid", psid, "ip6-dst", ip6_dst[(i * (0x1<<psid_len)) + psid])
 175
 176 #
 177 # 1:1 Full IPv4 address
 178 #
 179 def full11():
 180     ip4_pfx = ipaddress.ip_network('20.0.0.0/16')
 181     ip6_src = ipaddress.ip_network('cccc:bbbb::/64')
 182     ip6_dst = ipaddress.ip_network('bbbb::/32')
 183     psid_len = 0
 184     for i in range(ip4_pfx.num_addresses):
 185         print("map add domain ip4-pfx " + str(ip4_pfx[i]) +  "/32 ip6-pfx " + str(ip6_dst[i]) + "/128 ip6-src", ip6_src[i],
 186               "ea-bits-len 0 psid-offset 0 psid-len 0")
 187 def full11br():
 188     ip4_pfx = ipaddress.ip_network('20.0.0.0/16')
 189     ip6_dst = ipaddress.ip_network('bbbb::/32')
 190     psid_len = 0
 191     for i in range(ip4_pfx.num_addresses):
 192         print("map add domain ip4-pfx " + str(ip4_pfx[i]) +  "/32 ip6-pfx " + str(ip6_dst[i]) + "/128 ip6-shared-src cccc:bbbb::1",
 193               "ea-bits-len 0 psid-offset 0 psid-len 0")
 194
 195 #
 196 # Algorithmic mapping Shared IPv4 address
 197 #
 198 def algo():
 199     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")
 200     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")
 201
 202 #
 203 # IP4 forwarding
 204 #
 205 def ip4():
 206     ip4_pfx = ipaddress.ip_network('20.0.0.0/16')
 207     for i in range(ip4_pfx.num_addresses):
 208         print("ip route add " + str(ip4_pfx[i]) +  "/32 via 172.16.0.2")
 209
 210
 211 globals()[args.mapmode]()
 212
 213