Linux Kernel  3.7.1
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pfxlen.c
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1 #include <linux/export.h>
2 #include <linux/netfilter/ipset/pfxlen.h>
3 
4 /*
5  * Prefixlen maps for fast conversions, by Jan Engelhardt.
6  */
7 
8 #define E(a, b, c, d) \
9  {.ip6 = { \
10  __constant_htonl(a), __constant_htonl(b), \
11  __constant_htonl(c), __constant_htonl(d), \
12  } }
13 
14 /*
15  * This table works for both IPv4 and IPv6;
16  * just use prefixlen_netmask_map[prefixlength].ip.
17  */
18 const union nf_inet_addr ip_set_netmask_map[] = {
19  E(0x00000000, 0x00000000, 0x00000000, 0x00000000),
20  E(0x80000000, 0x00000000, 0x00000000, 0x00000000),
21  E(0xC0000000, 0x00000000, 0x00000000, 0x00000000),
22  E(0xE0000000, 0x00000000, 0x00000000, 0x00000000),
23  E(0xF0000000, 0x00000000, 0x00000000, 0x00000000),
24  E(0xF8000000, 0x00000000, 0x00000000, 0x00000000),
25  E(0xFC000000, 0x00000000, 0x00000000, 0x00000000),
26  E(0xFE000000, 0x00000000, 0x00000000, 0x00000000),
27  E(0xFF000000, 0x00000000, 0x00000000, 0x00000000),
28  E(0xFF800000, 0x00000000, 0x00000000, 0x00000000),
29  E(0xFFC00000, 0x00000000, 0x00000000, 0x00000000),
30  E(0xFFE00000, 0x00000000, 0x00000000, 0x00000000),
31  E(0xFFF00000, 0x00000000, 0x00000000, 0x00000000),
32  E(0xFFF80000, 0x00000000, 0x00000000, 0x00000000),
33  E(0xFFFC0000, 0x00000000, 0x00000000, 0x00000000),
34  E(0xFFFE0000, 0x00000000, 0x00000000, 0x00000000),
35  E(0xFFFF0000, 0x00000000, 0x00000000, 0x00000000),
36  E(0xFFFF8000, 0x00000000, 0x00000000, 0x00000000),
37  E(0xFFFFC000, 0x00000000, 0x00000000, 0x00000000),
38  E(0xFFFFE000, 0x00000000, 0x00000000, 0x00000000),
39  E(0xFFFFF000, 0x00000000, 0x00000000, 0x00000000),
40  E(0xFFFFF800, 0x00000000, 0x00000000, 0x00000000),
41  E(0xFFFFFC00, 0x00000000, 0x00000000, 0x00000000),
42  E(0xFFFFFE00, 0x00000000, 0x00000000, 0x00000000),
43  E(0xFFFFFF00, 0x00000000, 0x00000000, 0x00000000),
44  E(0xFFFFFF80, 0x00000000, 0x00000000, 0x00000000),
45  E(0xFFFFFFC0, 0x00000000, 0x00000000, 0x00000000),
46  E(0xFFFFFFE0, 0x00000000, 0x00000000, 0x00000000),
47  E(0xFFFFFFF0, 0x00000000, 0x00000000, 0x00000000),
48  E(0xFFFFFFF8, 0x00000000, 0x00000000, 0x00000000),
49  E(0xFFFFFFFC, 0x00000000, 0x00000000, 0x00000000),
50  E(0xFFFFFFFE, 0x00000000, 0x00000000, 0x00000000),
51  E(0xFFFFFFFF, 0x00000000, 0x00000000, 0x00000000),
52  E(0xFFFFFFFF, 0x80000000, 0x00000000, 0x00000000),
53  E(0xFFFFFFFF, 0xC0000000, 0x00000000, 0x00000000),
54  E(0xFFFFFFFF, 0xE0000000, 0x00000000, 0x00000000),
55  E(0xFFFFFFFF, 0xF0000000, 0x00000000, 0x00000000),
56  E(0xFFFFFFFF, 0xF8000000, 0x00000000, 0x00000000),
57  E(0xFFFFFFFF, 0xFC000000, 0x00000000, 0x00000000),
58  E(0xFFFFFFFF, 0xFE000000, 0x00000000, 0x00000000),
59  E(0xFFFFFFFF, 0xFF000000, 0x00000000, 0x00000000),
60  E(0xFFFFFFFF, 0xFF800000, 0x00000000, 0x00000000),
61  E(0xFFFFFFFF, 0xFFC00000, 0x00000000, 0x00000000),
62  E(0xFFFFFFFF, 0xFFE00000, 0x00000000, 0x00000000),
63  E(0xFFFFFFFF, 0xFFF00000, 0x00000000, 0x00000000),
64  E(0xFFFFFFFF, 0xFFF80000, 0x00000000, 0x00000000),
65  E(0xFFFFFFFF, 0xFFFC0000, 0x00000000, 0x00000000),
66  E(0xFFFFFFFF, 0xFFFE0000, 0x00000000, 0x00000000),
67  E(0xFFFFFFFF, 0xFFFF0000, 0x00000000, 0x00000000),
68  E(0xFFFFFFFF, 0xFFFF8000, 0x00000000, 0x00000000),
69  E(0xFFFFFFFF, 0xFFFFC000, 0x00000000, 0x00000000),
70  E(0xFFFFFFFF, 0xFFFFE000, 0x00000000, 0x00000000),
71  E(0xFFFFFFFF, 0xFFFFF000, 0x00000000, 0x00000000),
72  E(0xFFFFFFFF, 0xFFFFF800, 0x00000000, 0x00000000),
73  E(0xFFFFFFFF, 0xFFFFFC00, 0x00000000, 0x00000000),
74  E(0xFFFFFFFF, 0xFFFFFE00, 0x00000000, 0x00000000),
75  E(0xFFFFFFFF, 0xFFFFFF00, 0x00000000, 0x00000000),
76  E(0xFFFFFFFF, 0xFFFFFF80, 0x00000000, 0x00000000),
77  E(0xFFFFFFFF, 0xFFFFFFC0, 0x00000000, 0x00000000),
78  E(0xFFFFFFFF, 0xFFFFFFE0, 0x00000000, 0x00000000),
79  E(0xFFFFFFFF, 0xFFFFFFF0, 0x00000000, 0x00000000),
80  E(0xFFFFFFFF, 0xFFFFFFF8, 0x00000000, 0x00000000),
81  E(0xFFFFFFFF, 0xFFFFFFFC, 0x00000000, 0x00000000),
82  E(0xFFFFFFFF, 0xFFFFFFFE, 0x00000000, 0x00000000),
83  E(0xFFFFFFFF, 0xFFFFFFFF, 0x00000000, 0x00000000),
84  E(0xFFFFFFFF, 0xFFFFFFFF, 0x80000000, 0x00000000),
85  E(0xFFFFFFFF, 0xFFFFFFFF, 0xC0000000, 0x00000000),
86  E(0xFFFFFFFF, 0xFFFFFFFF, 0xE0000000, 0x00000000),
87  E(0xFFFFFFFF, 0xFFFFFFFF, 0xF0000000, 0x00000000),
88  E(0xFFFFFFFF, 0xFFFFFFFF, 0xF8000000, 0x00000000),
89  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFC000000, 0x00000000),
90  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFE000000, 0x00000000),
91  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFF000000, 0x00000000),
92  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFF800000, 0x00000000),
93  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFC00000, 0x00000000),
94  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFE00000, 0x00000000),
95  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFF00000, 0x00000000),
96  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFF80000, 0x00000000),
97  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFC0000, 0x00000000),
98  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFE0000, 0x00000000),
99  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFF0000, 0x00000000),
100  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFF8000, 0x00000000),
101  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFC000, 0x00000000),
102  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFE000, 0x00000000),
103  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFF000, 0x00000000),
104  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFF800, 0x00000000),
105  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFC00, 0x00000000),
106  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFE00, 0x00000000),
107  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFF00, 0x00000000),
108  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFF80, 0x00000000),
109  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFC0, 0x00000000),
110  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFE0, 0x00000000),
111  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFF0, 0x00000000),
112  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFF8, 0x00000000),
113  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFC, 0x00000000),
114  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFE, 0x00000000),
115  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0x00000000),
116  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0x80000000),
117  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xC0000000),
118  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xE0000000),
119  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xF0000000),
120  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xF8000000),
121  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFC000000),
122  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFE000000),
123  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFF000000),
124  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFF800000),
125  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFC00000),
126  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFE00000),
127  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFF00000),
128  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFF80000),
129  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFC0000),
130  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFE0000),
131  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFF0000),
132  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFF8000),
133  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFC000),
134  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFE000),
135  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFF000),
136  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFF800),
137  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFC00),
138  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFE00),
139  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFF00),
140  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFF80),
141  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFC0),
142  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFE0),
143  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFF0),
144  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFF8),
145  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFC),
146  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFE),
147  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF),
148 };
149 EXPORT_SYMBOL_GPL(ip_set_netmask_map);
150 
151 #undef E
152 #define E(a, b, c, d) \
153  {.ip6 = { (__force __be32) a, (__force __be32) b, \
154  (__force __be32) c, (__force __be32) d, \
155  } }
156 
157 /*
158  * This table works for both IPv4 and IPv6;
159  * just use prefixlen_hostmask_map[prefixlength].ip.
160  */
161 const union nf_inet_addr ip_set_hostmask_map[] = {
162  E(0x00000000, 0x00000000, 0x00000000, 0x00000000),
163  E(0x80000000, 0x00000000, 0x00000000, 0x00000000),
164  E(0xC0000000, 0x00000000, 0x00000000, 0x00000000),
165  E(0xE0000000, 0x00000000, 0x00000000, 0x00000000),
166  E(0xF0000000, 0x00000000, 0x00000000, 0x00000000),
167  E(0xF8000000, 0x00000000, 0x00000000, 0x00000000),
168  E(0xFC000000, 0x00000000, 0x00000000, 0x00000000),
169  E(0xFE000000, 0x00000000, 0x00000000, 0x00000000),
170  E(0xFF000000, 0x00000000, 0x00000000, 0x00000000),
171  E(0xFF800000, 0x00000000, 0x00000000, 0x00000000),
172  E(0xFFC00000, 0x00000000, 0x00000000, 0x00000000),
173  E(0xFFE00000, 0x00000000, 0x00000000, 0x00000000),
174  E(0xFFF00000, 0x00000000, 0x00000000, 0x00000000),
175  E(0xFFF80000, 0x00000000, 0x00000000, 0x00000000),
176  E(0xFFFC0000, 0x00000000, 0x00000000, 0x00000000),
177  E(0xFFFE0000, 0x00000000, 0x00000000, 0x00000000),
178  E(0xFFFF0000, 0x00000000, 0x00000000, 0x00000000),
179  E(0xFFFF8000, 0x00000000, 0x00000000, 0x00000000),
180  E(0xFFFFC000, 0x00000000, 0x00000000, 0x00000000),
181  E(0xFFFFE000, 0x00000000, 0x00000000, 0x00000000),
182  E(0xFFFFF000, 0x00000000, 0x00000000, 0x00000000),
183  E(0xFFFFF800, 0x00000000, 0x00000000, 0x00000000),
184  E(0xFFFFFC00, 0x00000000, 0x00000000, 0x00000000),
185  E(0xFFFFFE00, 0x00000000, 0x00000000, 0x00000000),
186  E(0xFFFFFF00, 0x00000000, 0x00000000, 0x00000000),
187  E(0xFFFFFF80, 0x00000000, 0x00000000, 0x00000000),
188  E(0xFFFFFFC0, 0x00000000, 0x00000000, 0x00000000),
189  E(0xFFFFFFE0, 0x00000000, 0x00000000, 0x00000000),
190  E(0xFFFFFFF0, 0x00000000, 0x00000000, 0x00000000),
191  E(0xFFFFFFF8, 0x00000000, 0x00000000, 0x00000000),
192  E(0xFFFFFFFC, 0x00000000, 0x00000000, 0x00000000),
193  E(0xFFFFFFFE, 0x00000000, 0x00000000, 0x00000000),
194  E(0xFFFFFFFF, 0x00000000, 0x00000000, 0x00000000),
195  E(0xFFFFFFFF, 0x80000000, 0x00000000, 0x00000000),
196  E(0xFFFFFFFF, 0xC0000000, 0x00000000, 0x00000000),
197  E(0xFFFFFFFF, 0xE0000000, 0x00000000, 0x00000000),
198  E(0xFFFFFFFF, 0xF0000000, 0x00000000, 0x00000000),
199  E(0xFFFFFFFF, 0xF8000000, 0x00000000, 0x00000000),
200  E(0xFFFFFFFF, 0xFC000000, 0x00000000, 0x00000000),
201  E(0xFFFFFFFF, 0xFE000000, 0x00000000, 0x00000000),
202  E(0xFFFFFFFF, 0xFF000000, 0x00000000, 0x00000000),
203  E(0xFFFFFFFF, 0xFF800000, 0x00000000, 0x00000000),
204  E(0xFFFFFFFF, 0xFFC00000, 0x00000000, 0x00000000),
205  E(0xFFFFFFFF, 0xFFE00000, 0x00000000, 0x00000000),
206  E(0xFFFFFFFF, 0xFFF00000, 0x00000000, 0x00000000),
207  E(0xFFFFFFFF, 0xFFF80000, 0x00000000, 0x00000000),
208  E(0xFFFFFFFF, 0xFFFC0000, 0x00000000, 0x00000000),
209  E(0xFFFFFFFF, 0xFFFE0000, 0x00000000, 0x00000000),
210  E(0xFFFFFFFF, 0xFFFF0000, 0x00000000, 0x00000000),
211  E(0xFFFFFFFF, 0xFFFF8000, 0x00000000, 0x00000000),
212  E(0xFFFFFFFF, 0xFFFFC000, 0x00000000, 0x00000000),
213  E(0xFFFFFFFF, 0xFFFFE000, 0x00000000, 0x00000000),
214  E(0xFFFFFFFF, 0xFFFFF000, 0x00000000, 0x00000000),
215  E(0xFFFFFFFF, 0xFFFFF800, 0x00000000, 0x00000000),
216  E(0xFFFFFFFF, 0xFFFFFC00, 0x00000000, 0x00000000),
217  E(0xFFFFFFFF, 0xFFFFFE00, 0x00000000, 0x00000000),
218  E(0xFFFFFFFF, 0xFFFFFF00, 0x00000000, 0x00000000),
219  E(0xFFFFFFFF, 0xFFFFFF80, 0x00000000, 0x00000000),
220  E(0xFFFFFFFF, 0xFFFFFFC0, 0x00000000, 0x00000000),
221  E(0xFFFFFFFF, 0xFFFFFFE0, 0x00000000, 0x00000000),
222  E(0xFFFFFFFF, 0xFFFFFFF0, 0x00000000, 0x00000000),
223  E(0xFFFFFFFF, 0xFFFFFFF8, 0x00000000, 0x00000000),
224  E(0xFFFFFFFF, 0xFFFFFFFC, 0x00000000, 0x00000000),
225  E(0xFFFFFFFF, 0xFFFFFFFE, 0x00000000, 0x00000000),
226  E(0xFFFFFFFF, 0xFFFFFFFF, 0x00000000, 0x00000000),
227  E(0xFFFFFFFF, 0xFFFFFFFF, 0x80000000, 0x00000000),
228  E(0xFFFFFFFF, 0xFFFFFFFF, 0xC0000000, 0x00000000),
229  E(0xFFFFFFFF, 0xFFFFFFFF, 0xE0000000, 0x00000000),
230  E(0xFFFFFFFF, 0xFFFFFFFF, 0xF0000000, 0x00000000),
231  E(0xFFFFFFFF, 0xFFFFFFFF, 0xF8000000, 0x00000000),
232  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFC000000, 0x00000000),
233  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFE000000, 0x00000000),
234  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFF000000, 0x00000000),
235  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFF800000, 0x00000000),
236  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFC00000, 0x00000000),
237  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFE00000, 0x00000000),
238  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFF00000, 0x00000000),
239  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFF80000, 0x00000000),
240  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFC0000, 0x00000000),
241  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFE0000, 0x00000000),
242  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFF0000, 0x00000000),
243  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFF8000, 0x00000000),
244  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFC000, 0x00000000),
245  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFE000, 0x00000000),
246  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFF000, 0x00000000),
247  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFF800, 0x00000000),
248  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFC00, 0x00000000),
249  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFE00, 0x00000000),
250  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFF00, 0x00000000),
251  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFF80, 0x00000000),
252  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFC0, 0x00000000),
253  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFE0, 0x00000000),
254  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFF0, 0x00000000),
255  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFF8, 0x00000000),
256  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFC, 0x00000000),
257  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFE, 0x00000000),
258  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0x00000000),
259  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0x80000000),
260  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xC0000000),
261  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xE0000000),
262  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xF0000000),
263  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xF8000000),
264  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFC000000),
265  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFE000000),
266  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFF000000),
267  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFF800000),
268  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFC00000),
269  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFE00000),
270  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFF00000),
271  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFF80000),
272  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFC0000),
273  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFE0000),
274  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFF0000),
275  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFF8000),
276  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFC000),
277  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFE000),
278  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFF000),
279  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFF800),
280  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFC00),
281  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFE00),
282  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFF00),
283  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFF80),
284  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFC0),
285  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFE0),
286  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFF0),
287  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFF8),
288  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFC),
289  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFE),
290  E(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF),
291 };
292 EXPORT_SYMBOL_GPL(ip_set_hostmask_map);
293 
294 /* Find the largest network which matches the range from left, in host order. */
295 u32
296 ip_set_range_to_cidr(u32 from, u32 to, u8 *cidr)
297 {
298  u32 last;
299  u8 i;
300 
301  for (i = 1; i < 32; i++) {
302  if ((from & ip_set_hostmask(i)) != from)
303  continue;
304  last = from | ~ip_set_hostmask(i);
305  if (!after(last, to)) {
306  *cidr = i;
307  return last;
308  }
309  }
310  *cidr = 32;
311  return from;
312 }
313 EXPORT_SYMBOL_GPL(ip_set_range_to_cidr);
Generated on Thu Jan 10 2013 15:00:10 for Linux Kernel by   doxygen 1.8.2