From 7cd468a3d7dee7d6c92f69a0bb7061ae208ec727 Mon Sep 17 00:00:00 2001 From: Damjan Marion Date: Mon, 19 Dec 2016 23:05:39 +0100 Subject: Reorganize source tree to use single autotools instance Change-Id: I7b51f88292e057c6443b12224486f2d0c9f8ae23 Signed-off-by: Damjan Marion --- src/vnet/map/examples/gen-rules.py | 186 +++++++++++++++++++++++++++++++++++++ 1 file changed, 186 insertions(+) create mode 100755 src/vnet/map/examples/gen-rules.py (limited to 'src/vnet/map/examples/gen-rules.py') diff --git a/src/vnet/map/examples/gen-rules.py b/src/vnet/map/examples/gen-rules.py new file mode 100755 index 00000000..7964aa9a --- /dev/null +++ b/src/vnet/map/examples/gen-rules.py @@ -0,0 +1,186 @@ +#!/usr/bin/env python3 + +# 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 ip6-pfx ::/0 ip6-src ea-bits-len 0 psid-offset 6 psid-len 6 +# map add rule index <0> psid ip6-dst + +def_ip4_pfx = '192.0.2.0/24' +def_ip6_pfx = '2001:db8::/32' +def_ip6_src = '2001:db8::1' +def_psid_offset = 6 +def_psid_len = 6 +def_ea_bits_len = 0 + +parser = argparse.ArgumentParser(description='MAP VPP configuration generator') +parser.add_argument('-t', action="store", dest="mapmode") +parser.add_argument('-f', action="store", dest="format", default="vpp") +parser.add_argument('--ip4-prefix', action="store", dest="ip4_pfx", default=def_ip4_pfx) +parser.add_argument('--ip6-prefix', action="store", dest="ip6_pfx", default=def_ip6_pfx) +parser.add_argument('--ip6-src', action="store", dest="ip6_src", default=def_ip6_src) +parser.add_argument('--psid-len', action="store", dest="psid_len", default=def_psid_len) +parser.add_argument('--psid-offset', action="store", dest="psid_offset", default=def_psid_offset) +parser.add_argument('--ea-bits-len', action="store", dest="ea_bits_len", default=def_ea_bits_len) +args = parser.parse_args() + +# +# Print domain +# +def domain_print(i, ip4_pfx, ip6_pfx, ip6_src, eabits_len, psid_offset, psid_len): + if format == 'vpp': + print("map add domain ip4-pfx " + ip4_pfx + " ip6-pfx", ip6_pfx, "ip6-src " + ip6_src + + " ea-bits-len", eabits_len, "psid-offset", psid_offset, "psid-len", psid_len) + if format == 'confd': + print("vpp softwire softwire-instances softwire-instance", i, "br-ipv6 " + ip6_src + + " ipv6-prefix " + ip6_pfx + " ipv4-prefix " + ip4_pfx + + " ea-bits-len", eabits_len, "psid-offset", psid_offset, "psid-len", psid_len) + if format == 'xml': + print("") + print("", i, ""); + print(" " + ip6_src + "") + print(" " + ip6_pfx + "") + print(" " + ip4_pfx + "") + print(" ", eabits_len, "") + print(" ", psid_len, "") + print(" ", psid_offset, "") + +def domain_print_end(): + if format == 'xml': + print("") + +def rule_print(i, psid, dst): + if format == 'vpp': + print("map add rule index", i, "psid", psid, "ip6-dst", dst) + if format == 'confd': + print("binding", psid, "ipv6-addr", dst) + if format == 'xml': + print(" ") + print(" ", psid, "") + print(" ", dst, "") + print(" ") + +# +# Algorithmic mapping Shared IPv4 address +# +def algo(ip4_pfx_str, ip6_pfx_str, ip6_src_str, ea_bits_len, psid_offset, psid_len, ip6_src_ecmp = False): + domain_print(0, ip4_pfx_str, ip6_pfx_str, ip6_src_str, ea_bits_len, psid_offset, psid_len) + domain_print_end() + +# +# 1:1 Full IPv4 address +# +def lw46(ip4_pfx_str, ip6_pfx_str, ip6_src_str, ea_bits_len, psid_offset, psid_len, ip6_src_ecmp = False): + ip4_pfx = ipaddress.ip_network(ip4_pfx_str) + ip6_src = ipaddress.ip_address(ip6_src_str) + ip6_dst = ipaddress.ip_network(ip6_pfx_str) + psid_len = 0 + mod = ip4_pfx.num_addresses / 1024 + + for i in range(ip4_pfx.num_addresses): + domain_print(i, str(ip4_pfx[i]) + "/32", str(ip6_dst[i]) + "/128", str(ip6_src), 0, 0, 0) + domain_print_end() + if ip6_src_ecmp and not i % mod: + ip6_src = ip6_src + 1 + +# +# 1:1 Shared IPv4 address, shared BR (16) VPP CLI +# +def lw46_shared(ip4_pfx_str, ip6_pfx_str, ip6_src_str, ea_bits_len, psid_offset, psid_len, ip6_src_ecmp = False): + ip4_pfx = ipaddress.ip_network(ip4_pfx_str) + ip6_src = ipaddress.ip_address(ip6_src_str) + ip6_dst = ipaddress.ip_network(ip6_pfx_str) + mod = ip4_pfx.num_addresses / 1024 + + for i in range(ip4_pfx.num_addresses): + domain_print(i, str(ip4_pfx[i]) + "/32", "::/0", str(ip6_src), 0, 0, psid_len) + for psid in range(0x1 << int(psid_len)): + rule_print(i, psid, str(ip6_dst[(i * (0x1< + + + urn:ietf:params:netconf:base:1.0 + + +]]>]]> + + + + + + + + + + + + + + ''') + +def xml_footer_print(): + print(''' + + + + + + + +]]>]]> + + + + + + +]]>]]> + ''') + + +format = args.format +if format == 'xml': + xml_header_print() +globals()[args.mapmode](args.ip4_pfx, args.ip6_pfx, args.ip6_src, args.ea_bits_len, args.psid_offset, args.psid_len) +if format == 'xml': + xml_footer_print() -- cgit 1.2.3-korg