summaryrefslogtreecommitdiff
path: root/net/netfilter/ipset/pfxlen.c
blob: bd13d66220f154801b4b21662f25990b27d829b8 (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
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
#include <linux/netfilter/ipset/pfxlen.h>

/*
 * Prefixlen maps for fast conversions, by Jan Engelhardt.
 */

#define E(a, b, c, d) \
	{.ip6 = { \
		__constant_htonl(a), __constant_htonl(b), \
		__constant_htonl(c), __constant_htonl(d), \
	} }

/*
 * This table works for both IPv4 and IPv6;
 * just use prefixlen_netmask_map[prefixlength].ip.
 */
const union nf_inet_addr ip_set_netmask_map[] = {
	E(0x00000000, 0x00000000, 0x00000000, 0x00000000),
	E(0x80000000, 0x00000000, 0x00000000, 0x00000000),
	E(0xC0000000, 0x00000000, 0x00000000, 0x00000000),
	E(0xE0000000, 0x00000000, 0x00000000, 0x00000000),
	E(0xF0000000, 0x00000000, 0x00000000, 0x00000000),
	E(0xF8000000, 0x00000000, 0x00000000, 0x00000000),
	E(0xFC000000, 0x00000000, 0x00000000, 0x00000000),
	E(0xFE000000, 0x00000000, 0x00000000, 0x00000000),
	E(0xFF000000, 0x00000000, 0x00000000, 0x00000000),
	E(0xFF800000, 0x00000000, 0x00000000, 0x00000000),
	E(0xFFC00000, 0x00000000, 0x00000000, 0x00000000),
	E(0xFFE00000, 0x00000000, 0x00000000, 0x00000000),
	E(0xFFF00000, 0x00000000, 0x00000000, 0x00000000),
	E(0xFFF80000, 0x00000000, 0x00000000, 0x00000000),
	E(0xFFFC0000, 0x00000000, 0x00000000, 0x00000000),
	E(0xFFFE0000, 0x00000000, 0x00000000, 0x00000000),
	E(0xFFFF0000, 0x00000000, 0x00000000, 0x00000000),
	E(0xFFFF8000, 0x00000000, 0x00000000, 0x00000000),
	E(0xFFFFC000, 0x00000000, 0x00000000, 0x00000000),
	E(0xFFFFE000, 0x00000000, 0x00000000, 0x00000000),
	E(0xFFFFF000, 0x00000000, 0x00000000, 0x00000000),
	E(0xFFFFF800, 0x00000000, 0x00000000, 0x00000000),
	E(0xFFFFFC00, 0x00000000, 0x00000000, 0x00000000),
	E(0xFFFFFE00, 0x00000000, 0x00000000, 0x00000000),
	E(0xFFFFFF00, 0x00000000, 0x00000000, 0x00000000),
	E(0xFFFFFF80, 0x00000000, 0x00000000, 0x00000000),
	E(0xFFFFFFC0, 0x00000000, 0x00000000, 0x00000000),
	E(0xFFFFFFE0, 0x00000000, 0x00000000, 0x00000000),
	E(0xFFFFFFF0, 0x00000000, 0x00000000, 0x00000000),
	E(0xFFFFFFF8, 0x00000000, 0x00000000, 0x00000000),
	E(0xFFFFFFFC, 0x00000000, 0x00000000, 0x00000000),
	E(0xFFFFFFFE, 0x00000000, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0x00000000, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0x80000000, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xC0000000, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xE0000000, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xF0000000, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xF8000000, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xFC000000, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xFE000000, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xFF000000, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xFF800000, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFC00000, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFE00000, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFF00000, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFF80000, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFC0000, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFE0000, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFF0000, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFF8000, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFC000, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFE000, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFF000, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFF800, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFC00, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFE00, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFF00, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFF80, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFC0, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFE0, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFF0, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFF8, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFC, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFE, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0x80000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xC0000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xE0000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xF0000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xF8000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFC000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFE000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFF000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFF800000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFC00000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFE00000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFF00000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFF80000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFC0000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFE0000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFF0000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFF8000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFC000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFE000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFF000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFF800, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFC00, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFE00, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFF00, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFF80, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFC0, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFE0, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFF0, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFF8, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFC, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFE, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0x80000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xC0000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xE0000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xF0000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xF8000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFC000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFE000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFF000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFF800000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFC00000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFE00000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFF00000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFF80000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFC0000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFE0000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFF0000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFF8000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFC000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFE000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFF000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFF800),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFC00),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFE00),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFF00),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFF80),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFC0),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFE0),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFF0),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFF8),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFC),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFE),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF),
};
EXPORT_SYMBOL_GPL(ip_set_netmask_map);

#undef  E
#define E(a, b, c, d)						\
	{.ip6 = { (__force __be32) a, (__force __be32) b,	\
		  (__force __be32) c, (__force __be32) d,	\
	} }

/*
 * This table works for both IPv4 and IPv6;
 * just use prefixlen_hostmask_map[prefixlength].ip.
 */
const union nf_inet_addr ip_set_hostmask_map[] = {
	E(0x00000000, 0x00000000, 0x00000000, 0x00000000),
	E(0x80000000, 0x00000000, 0x00000000, 0x00000000),
	E(0xC0000000, 0x00000000, 0x00000000, 0x00000000),
	E(0xE0000000, 0x00000000, 0x00000000, 0x00000000),
	E(0xF0000000, 0x00000000, 0x00000000, 0x00000000),
	E(0xF8000000, 0x00000000, 0x00000000, 0x00000000),
	E(0xFC000000, 0x00000000, 0x00000000, 0x00000000),
	E(0xFE000000, 0x00000000, 0x00000000, 0x00000000),
	E(0xFF000000, 0x00000000, 0x00000000, 0x00000000),
	E(0xFF800000, 0x00000000, 0x00000000, 0x00000000),
	E(0xFFC00000, 0x00000000, 0x00000000, 0x00000000),
	E(0xFFE00000, 0x00000000, 0x00000000, 0x00000000),
	E(0xFFF00000, 0x00000000, 0x00000000, 0x00000000),
	E(0xFFF80000, 0x00000000, 0x00000000, 0x00000000),
	E(0xFFFC0000, 0x00000000, 0x00000000, 0x00000000),
	E(0xFFFE0000, 0x00000000, 0x00000000, 0x00000000),
	E(0xFFFF0000, 0x00000000, 0x00000000, 0x00000000),
	E(0xFFFF8000, 0x00000000, 0x00000000, 0x00000000),
	E(0xFFFFC000, 0x00000000, 0x00000000, 0x00000000),
	E(0xFFFFE000, 0x00000000, 0x00000000, 0x00000000),
	E(0xFFFFF000, 0x00000000, 0x00000000, 0x00000000),
	E(0xFFFFF800, 0x00000000, 0x00000000, 0x00000000),
	E(0xFFFFFC00, 0x00000000, 0x00000000, 0x00000000),
	E(0xFFFFFE00, 0x00000000, 0x00000000, 0x00000000),
	E(0xFFFFFF00, 0x00000000, 0x00000000, 0x00000000),
	E(0xFFFFFF80, 0x00000000, 0x00000000, 0x00000000),
	E(0xFFFFFFC0, 0x00000000, 0x00000000, 0x00000000),
	E(0xFFFFFFE0, 0x00000000, 0x00000000, 0x00000000),
	E(0xFFFFFFF0, 0x00000000, 0x00000000, 0x00000000),
	E(0xFFFFFFF8, 0x00000000, 0x00000000, 0x00000000),
	E(0xFFFFFFFC, 0x00000000, 0x00000000, 0x00000000),
	E(0xFFFFFFFE, 0x00000000, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0x00000000, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0x80000000, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xC0000000, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xE0000000, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xF0000000, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xF8000000, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xFC000000, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xFE000000, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xFF000000, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xFF800000, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFC00000, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFE00000, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFF00000, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFF80000, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFC0000, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFE0000, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFF0000, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFF8000, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFC000, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFE000, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFF000, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFF800, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFC00, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFE00, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFF00, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFF80, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFC0, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFE0, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFF0, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFF8, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFC, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFE, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0x00000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0x80000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xC0000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xE0000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xF0000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xF8000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFC000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFE000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFF000000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFF800000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFC00000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFE00000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFF00000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFF80000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFC0000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFE0000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFF0000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFF8000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFC000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFE000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFF000, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFF800, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFC00, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFE00, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFF00, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFF80, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFC0, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFE0, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFF0, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFF8, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFC, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFE, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0x00000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0x80000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xC0000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xE0000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xF0000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xF8000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFC000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFE000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFF000000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFF800000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFC00000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFE00000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFF00000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFF80000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFC0000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFE0000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFF0000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFF8000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFC000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFE000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFF000),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFF800),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFC00),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFE00),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFF00),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFF80),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFC0),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFE0),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFF0),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFF8),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFC),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFE),
	E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF),
};
EXPORT_SYMBOL_GPL(ip_set_hostmask_map);

/* Find the largest network which matches the range from left, in host order. */
u32
ip_set_range_to_cidr(u32 from, u32 to, u8 *cidr)
{
	u32 last;
	u8 i;

	for (i = 1; i < 32; i++) {
		if ((from & ip_set_hostmask(i)) != from)
			continue;
		last = from | ~ip_set_hostmask(i);
		if (!after(last, to)) {
			*cidr = i;
			return last;
		}
	}
	*cidr = 32;
	return from;
}
EXPORT_SYMBOL_GPL(ip_set_range_to_cidr);