/* * test.c : MAP unit tests * * Copyright (c) 2016 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. */ #include <assert.h> #include "map.h" static map_domain_t * get_domain(ip4_address_t * ip4_prefix, u8 ip4_prefix_len, ip6_address_t * ip6_prefix, u8 ip6_prefix_len, ip6_address_t * ip6_src, u8 ip6_src_len, u8 ea_bits_len, u8 psid_offset, u8 psid_length, u16 mtu, u8 flags) { u8 suffix_len; /* EA bits must be within the first 64 bits */ if (ea_bits_len > 0 && (ip6_prefix_len + ea_bits_len) > 64) return NULL; map_domain_t * d = malloc(sizeof(*d)); /* Init domain struct */ d->ip4_prefix.as_u32 = ip4_prefix->as_u32; d->ip4_prefix_len = ip4_prefix_len; d->ip6_prefix = *ip6_prefix; d->ip6_prefix_len = ip6_prefix_len; d->ip6_src = *ip6_src; d->ip6_src_len = ip6_src_len; d->ea_bits_len = ea_bits_len; d->psid_offset = psid_offset; d->psid_length = psid_length; d->mtu = mtu; d->flags = flags; /* How many, and which bits to grab from the IPv4 DA */ if (ip4_prefix_len + ea_bits_len < 32) { d->flags |= MAP_DOMAIN_PREFIX; d->suffix_shift = 32 - ip4_prefix_len - ea_bits_len; suffix_len = ea_bits_len; } else { d->suffix_shift = 0; suffix_len = 32 - ip4_prefix_len; } d->suffix_mask = (1 << suffix_len) - 1; d->psid_shift = 16 - psid_length - psid_offset; d->psid_mask = (1 << d->psid_length) - 1; if (ip6_prefix_len + suffix_len + d->psid_length > 64) return NULL; d->ea_shift = 64 - ip6_prefix_len - suffix_len - d->psid_length; return d; } /* * VPP-340: * map_add_domain ip4-pfx 20.0.0.0/8 ip6-pfx 2001:db8::/40 ip6-src 2001:db8:ffff::/96 ea-bits-len 24 psid-offset 0 psid-len 0 map-t * IPv4 src = 100.0.0.1 * IPv4 dst = 20.169.201.219 * UDP dest port = 1232 * IPv6 src = 2001:db8:ffff::6400:1 * IPv6 dst = a9c9:dfb8::14a9:c9db:0 * a9c9:dfb8::14a9:c9db:0 != 2001:db8:a9:c9db:0:14a9:c9db:0 */ static void test_map_t_destaddr (void) { ip4_address_t ip4_prefix; ip6_address_t ip6_prefix; ip6_address_t ip6_src; ip4_prefix.as_u32 = clib_host_to_net_u32(0x14000000); ip6_prefix.as_u64[0] = clib_host_to_net_u64(0x20010db800000000); ip6_prefix.as_u64[1] = 0; ip6_src.as_u64[0] = clib_host_to_net_u64(0x20010db8ffff0000); map_domain_t * d = get_domain (&ip4_prefix, 8, &ip6_prefix, 40, &ip6_src, 96, 24, 0, 0, 0, MAP_DOMAIN_TRANSLATION); ip6_address_t dst6; dst6.as_u64[0] = map_get_pfx(d, 0x14a9c9db, 1232); dst6.as_u64[1] = map_get_sfx(d, 0x14a9c9db, 1232); assert(dst6.as_u64[0] == 0x20010db800a9c9db); assert(dst6.as_u64[1] == 0x000014a9c9db0000); } /* * VPP-228 * ip4-pfx 20.0.0.0/8 * ip6-pfx 2001:db8::/<n> * ip6-src 2001:db8:ffff::1 * ea-bits-len 16 psid-offset 6 psid-len 8 * 20.169.201.219 port 1232 */ static void test_map_eabits (void) { ip4_address_t ip4_prefix; ip6_address_t ip6_prefix; ip6_address_t ip6_src; ip6_address_t dst6; ip4_prefix.as_u32 = clib_host_to_net_u32(0x14000000); ip6_prefix.as_u64[0] = clib_host_to_net_u64(0x20010db800000000); ip6_prefix.as_u64[1] = 0; ip6_src.as_u64[0] = clib_host_to_net_u64(0x20010db8ffff0000); ip6_src.as_u64[1] = clib_host_to_net_u64(0x0000000000000001); map_domain_t * d = get_domain (&ip4_prefix, 16, &ip6_prefix, 48, &ip6_src, 128, 16, 6, 8, 0, 0); assert(!d); //20.0.0.0/8 2001:db8::/32 4 2001:db8:a000::14a0:0:0 d = get_domain (&ip4_prefix, 8, &ip6_prefix, 32, &ip6_src, 128, 4, 0, 0, 0, 0); dst6.as_u64[0] = map_get_pfx(d, 0x14a9c9db, 1232); dst6.as_u64[1] = map_get_sfx(d, 0x14a9c9db, 1232); assert(dst6.as_u64[0] == 0x20010db8a0000000); assert(dst6.as_u64[1] == 0x000014a000000000); //20.0.0.0/8 2001:db8::/32 8 2001:db8:a900::14a9:0:0 d = get_domain (&ip4_prefix, 8, &ip6_prefix, 32, &ip6_src, 128, 8, 0, 0, 0, 0); dst6.as_u64[0] = map_get_pfx(d, 0x14a9c9db, 1232); dst6.as_u64[1] = map_get_sfx(d, 0x14a9c9db, 1232); assert(dst6.as_u64[0] == 0x20010db8a9000000); assert(dst6.as_u64[1] == 0x000014a900000000); //20.0.0.0/8 2001:db8::/32 10 2001:db8:a9c0::14a9:c000:0 d = get_domain (&ip4_prefix, 8, &ip6_prefix, 32, &ip6_src, 128, 10, 0, 0, 0, 0); dst6.as_u64[0] = map_get_pfx(d, 0x14a9c9db, 1232); dst6.as_u64[1] = map_get_sfx(d, 0x14a9c9db, 1232); assert(dst6.as_u64[0] == 0x20010db8a9c00000); assert(dst6.as_u64[1] == 0x000014a9c0000000); //20.0.0.0/8 2001:db8::/32 16 2001:db8:a9c9::14a9:c900:0 d = get_domain (&ip4_prefix, 8, &ip6_prefix, 32, &ip6_src, 128, 16, 0, 0, 0, 0); dst6.as_u64[0] = map_get_pfx(d, 0x14a9c9db, 1232); dst6.as_u64[1] = map_get_sfx(d, 0x14a9c9db, 1232); assert(dst6.as_u64[0] == 0x20010db8a9c90000); assert(dst6.as_u64[1] == 0x000014a9c9000000); //20.0.0.0/8 2001:db8::/32 20 2001:db8:a9c9:d000:0:14a9:c9d0:0 d = get_domain (&ip4_prefix, 8, &ip6_prefix, 32, &ip6_src, 128, 20, 0, 0, 0, 0); dst6.as_u64[0] = map_get_pfx(d, 0x14a9c9db, 1232); dst6.as_u64[1] = map_get_sfx(d, 0x14a9c9db, 1232); assert(dst6.as_u64[0] == 0x20010db8a9c9d000); assert(dst6.as_u64[1] == 0x000014a9c9d00000); //20.0.0.0/8 2001:db8::/32 23 2001:db8:a9c9:da00:0:14a9:c9da:0 d = get_domain (&ip4_prefix, 8, &ip6_prefix, 32, &ip6_src, 128, 23, 0, 0, 0, 0); dst6.as_u64[0] = map_get_pfx(d, 0x14a9c9db, 1232); dst6.as_u64[1] = map_get_sfx(d, 0x14a9c9db, 1232); assert(dst6.as_u64[0] == 0x20010db8a9c9da00); assert(dst6.as_u64[1] == 0x000014a9c9da0000); //20.169.201.0/24 2001:db8::/32 7 2001:db8:da00::14a9:c9da:0 d = get_domain (&ip4_prefix, 8, &ip6_prefix, 32, &ip6_src, 128, 7, 0, 0, 0, 0); dst6.as_u64[0] = map_get_pfx(d, 0x14a9c9db, 1232); dst6.as_u64[1] = map_get_sfx(d, 0x14a9c9db, 1232); assert(dst6.as_u64[0] == 0x20010db8a8000000); assert(dst6.as_u64[1] == 0x000014a800000000); } #define foreach_test_case \ _(map_t_destaddr) \ _(map_eabits) static void run_tests (void) { #define _(_test_name) \ test_ ## _test_name (); foreach_test_case #undef _ } int main() { run_tests (); return 0; }