aboutsummaryrefslogtreecommitdiffstats
path: root/src/plugins/map/test.c
blob: f3c893a7a31d634657935a88797bf806b9e4dffd (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
/*
 * 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)
{
  map_domain_t * d = malloc(sizeof(*d));
  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;

  /* 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;
}