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18#ifndef _LINUX_IN_H
19#define _LINUX_IN_H
20
21#include <linux/types.h>
22#include <linux/socket.h>
23
24
25enum {
26 IPPROTO_IP = 0,
27 IPPROTO_ICMP = 1,
28 IPPROTO_IGMP = 2,
29 IPPROTO_IPIP = 4,
30 IPPROTO_TCP = 6,
31 IPPROTO_EGP = 8,
32 IPPROTO_PUP = 12,
33 IPPROTO_UDP = 17,
34 IPPROTO_IDP = 22,
35 IPPROTO_DCCP = 33,
36 IPPROTO_RSVP = 46,
37 IPPROTO_GRE = 47,
38
39 IPPROTO_IPV6 = 41,
40
41 IPPROTO_ESP = 50,
42 IPPROTO_AH = 51,
43 IPPROTO_BEETPH = 94,
44 IPPROTO_PIM = 103,
45
46 IPPROTO_COMP = 108,
47 IPPROTO_SCTP = 132,
48 IPPROTO_UDPLITE = 136,
49
50 IPPROTO_RAW = 255,
51 IPPROTO_MAX
52};
53
54
55
56struct in_addr {
57 __be32 s_addr;
58};
59
60#define IP_TOS 1
61#define IP_TTL 2
62#define IP_HDRINCL 3
63#define IP_OPTIONS 4
64#define IP_ROUTER_ALERT 5
65#define IP_RECVOPTS 6
66#define IP_RETOPTS 7
67#define IP_PKTINFO 8
68#define IP_PKTOPTIONS 9
69#define IP_MTU_DISCOVER 10
70#define IP_RECVERR 11
71#define IP_RECVTTL 12
72#define IP_RECVTOS 13
73#define IP_MTU 14
74#define IP_FREEBIND 15
75#define IP_IPSEC_POLICY 16
76#define IP_XFRM_POLICY 17
77#define IP_PASSSEC 18
78#define IP_TRANSPARENT 19
79
80
81#define IP_RECVRETOPTS IP_RETOPTS
82
83
84#define IP_ORIGDSTADDR 20
85#define IP_RECVORIGDSTADDR IP_ORIGDSTADDR
86
87#define IP_MINTTL 21
88#define IP_NODEFRAG 22
89
90
91#define IP_PMTUDISC_DONT 0
92#define IP_PMTUDISC_WANT 1
93#define IP_PMTUDISC_DO 2
94#define IP_PMTUDISC_PROBE 3
95
96#define IP_MULTICAST_IF 32
97#define IP_MULTICAST_TTL 33
98#define IP_MULTICAST_LOOP 34
99#define IP_ADD_MEMBERSHIP 35
100#define IP_DROP_MEMBERSHIP 36
101#define IP_UNBLOCK_SOURCE 37
102#define IP_BLOCK_SOURCE 38
103#define IP_ADD_SOURCE_MEMBERSHIP 39
104#define IP_DROP_SOURCE_MEMBERSHIP 40
105#define IP_MSFILTER 41
106#define MCAST_JOIN_GROUP 42
107#define MCAST_BLOCK_SOURCE 43
108#define MCAST_UNBLOCK_SOURCE 44
109#define MCAST_LEAVE_GROUP 45
110#define MCAST_JOIN_SOURCE_GROUP 46
111#define MCAST_LEAVE_SOURCE_GROUP 47
112#define MCAST_MSFILTER 48
113#define IP_MULTICAST_ALL 49
114#define IP_UNICAST_IF 50
115
116#define MCAST_EXCLUDE 0
117#define MCAST_INCLUDE 1
118
119
120#define IP_DEFAULT_MULTICAST_TTL 1
121#define IP_DEFAULT_MULTICAST_LOOP 1
122
123
124
125struct ip_mreq {
126 struct in_addr imr_multiaddr;
127 struct in_addr imr_interface;
128};
129
130struct ip_mreqn {
131 struct in_addr imr_multiaddr;
132 struct in_addr imr_address;
133 int imr_ifindex;
134};
135
136struct ip_mreq_source {
137 __be32 imr_multiaddr;
138 __be32 imr_interface;
139 __be32 imr_sourceaddr;
140};
141
142struct ip_msfilter {
143 __be32 imsf_multiaddr;
144 __be32 imsf_interface;
145 __u32 imsf_fmode;
146 __u32 imsf_numsrc;
147 __be32 imsf_slist[1];
148};
149
150#define IP_MSFILTER_SIZE(numsrc) \
151 (sizeof(struct ip_msfilter) - sizeof(__u32) \
152 + (numsrc) * sizeof(__u32))
153
154struct group_req {
155 __u32 gr_interface;
156 struct __kernel_sockaddr_storage gr_group;
157};
158
159struct group_source_req {
160 __u32 gsr_interface;
161 struct __kernel_sockaddr_storage gsr_group;
162 struct __kernel_sockaddr_storage gsr_source;
163};
164
165struct group_filter {
166 __u32 gf_interface;
167 struct __kernel_sockaddr_storage gf_group;
168 __u32 gf_fmode;
169 __u32 gf_numsrc;
170 struct __kernel_sockaddr_storage gf_slist[1];
171};
172
173#define GROUP_FILTER_SIZE(numsrc) \
174 (sizeof(struct group_filter) - sizeof(struct __kernel_sockaddr_storage) \
175 + (numsrc) * sizeof(struct __kernel_sockaddr_storage))
176
177struct in_pktinfo {
178 int ipi_ifindex;
179 struct in_addr ipi_spec_dst;
180 struct in_addr ipi_addr;
181};
182
183
184#define __SOCK_SIZE__ 16
185struct sockaddr_in {
186 __kernel_sa_family_t sin_family;
187 __be16 sin_port;
188 struct in_addr sin_addr;
189
190
191 unsigned char __pad[__SOCK_SIZE__ - sizeof(short int) -
192 sizeof(unsigned short int) - sizeof(struct in_addr)];
193};
194#define sin_zero __pad
195
196
197
198
199
200
201
202#define IN_CLASSA(a) ((((long int) (a)) & 0x80000000) == 0)
203#define IN_CLASSA_NET 0xff000000
204#define IN_CLASSA_NSHIFT 24
205#define IN_CLASSA_HOST (0xffffffff & ~IN_CLASSA_NET)
206#define IN_CLASSA_MAX 128
207
208#define IN_CLASSB(a) ((((long int) (a)) & 0xc0000000) == 0x80000000)
209#define IN_CLASSB_NET 0xffff0000
210#define IN_CLASSB_NSHIFT 16
211#define IN_CLASSB_HOST (0xffffffff & ~IN_CLASSB_NET)
212#define IN_CLASSB_MAX 65536
213
214#define IN_CLASSC(a) ((((long int) (a)) & 0xe0000000) == 0xc0000000)
215#define IN_CLASSC_NET 0xffffff00
216#define IN_CLASSC_NSHIFT 8
217#define IN_CLASSC_HOST (0xffffffff & ~IN_CLASSC_NET)
218
219#define IN_CLASSD(a) ((((long int) (a)) & 0xf0000000) == 0xe0000000)
220#define IN_MULTICAST(a) IN_CLASSD(a)
221#define IN_MULTICAST_NET 0xF0000000
222
223#define IN_EXPERIMENTAL(a) ((((long int) (a)) & 0xf0000000) == 0xf0000000)
224#define IN_BADCLASS(a) IN_EXPERIMENTAL((a))
225
226
227#define INADDR_ANY ((unsigned long int) 0x00000000)
228
229
230#define INADDR_BROADCAST ((unsigned long int) 0xffffffff)
231
232
233#define INADDR_NONE ((unsigned long int) 0xffffffff)
234
235
236#define IN_LOOPBACKNET 127
237
238
239#define INADDR_LOOPBACK 0x7f000001
240#define IN_LOOPBACK(a) ((((long int) (a)) & 0xff000000) == 0x7f000000)
241
242
243#define INADDR_UNSPEC_GROUP 0xe0000000U
244#define INADDR_ALLHOSTS_GROUP 0xe0000001U
245#define INADDR_ALLRTRS_GROUP 0xe0000002U
246#define INADDR_MAX_LOCAL_GROUP 0xe00000ffU
247
248
249
250#include <asm/byteorder.h>
251
252#ifdef __KERNEL__
253
254#include <linux/errno.h>
255
256static inline int proto_ports_offset(int proto)
257{
258 switch (proto) {
259 case IPPROTO_TCP:
260 case IPPROTO_UDP:
261 case IPPROTO_DCCP:
262 case IPPROTO_ESP:
263 case IPPROTO_SCTP:
264 case IPPROTO_UDPLITE:
265 return 0;
266 case IPPROTO_AH:
267 return 4;
268 default:
269 return -EINVAL;
270 }
271}
272
273static inline bool ipv4_is_loopback(__be32 addr)
274{
275 return (addr & htonl(0xff000000)) == htonl(0x7f000000);
276}
277
278static inline bool ipv4_is_multicast(__be32 addr)
279{
280 return (addr & htonl(0xf0000000)) == htonl(0xe0000000);
281}
282
283static inline bool ipv4_is_local_multicast(__be32 addr)
284{
285 return (addr & htonl(0xffffff00)) == htonl(0xe0000000);
286}
287
288static inline bool ipv4_is_lbcast(__be32 addr)
289{
290
291 return addr == htonl(INADDR_BROADCAST);
292}
293
294static inline bool ipv4_is_zeronet(__be32 addr)
295{
296 return (addr & htonl(0xff000000)) == htonl(0x00000000);
297}
298
299
300
301static inline bool ipv4_is_private_10(__be32 addr)
302{
303 return (addr & htonl(0xff000000)) == htonl(0x0a000000);
304}
305
306static inline bool ipv4_is_private_172(__be32 addr)
307{
308 return (addr & htonl(0xfff00000)) == htonl(0xac100000);
309}
310
311static inline bool ipv4_is_private_192(__be32 addr)
312{
313 return (addr & htonl(0xffff0000)) == htonl(0xc0a80000);
314}
315
316static inline bool ipv4_is_linklocal_169(__be32 addr)
317{
318 return (addr & htonl(0xffff0000)) == htonl(0xa9fe0000);
319}
320
321static inline bool ipv4_is_anycast_6to4(__be32 addr)
322{
323 return (addr & htonl(0xffffff00)) == htonl(0xc0586300);
324}
325
326static inline bool ipv4_is_test_192(__be32 addr)
327{
328 return (addr & htonl(0xffffff00)) == htonl(0xc0000200);
329}
330
331static inline bool ipv4_is_test_198(__be32 addr)
332{
333 return (addr & htonl(0xfffe0000)) == htonl(0xc6120000);
334}
335#endif
336
337#endif
338
