1 /* SPDX-License-Identifier: GPL-2.0+ WITH Linu 1
2 /*
3 * INET An implementation of the TCP/I
4 * operating system. INET is imp
5 * interface as the means of comm
6 *
7 * Definitions of the Internet Pr
8 *
9 * Version: @(#)in.h 1.0.1 04/21/
10 *
11 * Authors: Original taken from the GNU Pr
12 * Fred N. van Kempen, <waltje@uW
13 *
14 * This program is free software;
15 * modify it under the terms of t
16 * as published by the Free Softw
17 * 2 of the License, or (at your
18 */
19 #ifndef _UAPI_LINUX_IN_H
20 #define _UAPI_LINUX_IN_H
21
22 #include <linux/types.h>
23 #include <linux/stddef.h>
24 #include <linux/libc-compat.h>
25 #include <linux/socket.h>
26
27 #if __UAPI_DEF_IN_IPPROTO
28 /* Standard well-defined IP protocols. */
29 enum {
30 IPPROTO_IP = 0, /* Dummy proto
31 #define IPPROTO_IP IPPROTO_IP
32 IPPROTO_ICMP = 1, /* Internet Co
33 #define IPPROTO_ICMP IPPROTO_ICMP
34 IPPROTO_IGMP = 2, /* Internet Gr
35 #define IPPROTO_IGMP IPPROTO_IGMP
36 IPPROTO_IPIP = 4, /* IPIP tunnel
37 #define IPPROTO_IPIP IPPROTO_IPIP
38 IPPROTO_TCP = 6, /* Transmissio
39 #define IPPROTO_TCP IPPROTO_TCP
40 IPPROTO_EGP = 8, /* Exterior Ga
41 #define IPPROTO_EGP IPPROTO_EGP
42 IPPROTO_PUP = 12, /* PUP protoco
43 #define IPPROTO_PUP IPPROTO_PUP
44 IPPROTO_UDP = 17, /* User Datagr
45 #define IPPROTO_UDP IPPROTO_UDP
46 IPPROTO_IDP = 22, /* XNS IDP pro
47 #define IPPROTO_IDP IPPROTO_IDP
48 IPPROTO_TP = 29, /* SO Transpor
49 #define IPPROTO_TP IPPROTO_TP
50 IPPROTO_DCCP = 33, /* Datagram Co
51 #define IPPROTO_DCCP IPPROTO_DCCP
52 IPPROTO_IPV6 = 41, /* IPv6-in-IPv
53 #define IPPROTO_IPV6 IPPROTO_IPV6
54 IPPROTO_RSVP = 46, /* RSVP Protoc
55 #define IPPROTO_RSVP IPPROTO_RSVP
56 IPPROTO_GRE = 47, /* Cisco GRE t
57 #define IPPROTO_GRE IPPROTO_GRE
58 IPPROTO_ESP = 50, /* Encapsulati
59 #define IPPROTO_ESP IPPROTO_ESP
60 IPPROTO_AH = 51, /* Authenticat
61 #define IPPROTO_AH IPPROTO_AH
62 IPPROTO_MTP = 92, /* Multicast T
63 #define IPPROTO_MTP IPPROTO_MTP
64 IPPROTO_BEETPH = 94, /* IP option p
65 #define IPPROTO_BEETPH IPPROTO_BEETPH
66 IPPROTO_ENCAP = 98, /* Encapsulati
67 #define IPPROTO_ENCAP IPPROTO_ENCAP
68 IPPROTO_PIM = 103, /* Protocol In
69 #define IPPROTO_PIM IPPROTO_PIM
70 IPPROTO_COMP = 108, /* Compression
71 #define IPPROTO_COMP IPPROTO_COMP
72 IPPROTO_L2TP = 115, /* Layer 2 Tun
73 #define IPPROTO_L2TP IPPROTO_L2TP
74 IPPROTO_SCTP = 132, /* Stream Cont
75 #define IPPROTO_SCTP IPPROTO_SCTP
76 IPPROTO_UDPLITE = 136, /* UDP-Lite (R
77 #define IPPROTO_UDPLITE IPPROTO_UDPLIT
78 IPPROTO_MPLS = 137, /* MPLS in IP
79 #define IPPROTO_MPLS IPPROTO_MPLS
80 IPPROTO_ETHERNET = 143, /* Ethernet-wi
81 #define IPPROTO_ETHERNET IPPROTO_ETHERN
82 IPPROTO_RAW = 255, /* Raw IP pack
83 #define IPPROTO_RAW IPPROTO_RAW
84 IPPROTO_SMC = 256, /* Shared Memo
85 #define IPPROTO_SMC IPPROTO_SMC
86 IPPROTO_MPTCP = 262, /* Multipath T
87 #define IPPROTO_MPTCP IPPROTO_MPTCP
88 IPPROTO_MAX
89 };
90 #endif
91
92 #if __UAPI_DEF_IN_ADDR
93 /* Internet address. */
94 struct in_addr {
95 __be32 s_addr;
96 };
97 #endif
98
99 #define IP_TOS 1
100 #define IP_TTL 2
101 #define IP_HDRINCL 3
102 #define IP_OPTIONS 4
103 #define IP_ROUTER_ALERT 5
104 #define IP_RECVOPTS 6
105 #define IP_RETOPTS 7
106 #define IP_PKTINFO 8
107 #define IP_PKTOPTIONS 9
108 #define IP_MTU_DISCOVER 10
109 #define IP_RECVERR 11
110 #define IP_RECVTTL 12
111 #define IP_RECVTOS 13
112 #define IP_MTU 14
113 #define IP_FREEBIND 15
114 #define IP_IPSEC_POLICY 16
115 #define IP_XFRM_POLICY 17
116 #define IP_PASSSEC 18
117 #define IP_TRANSPARENT 19
118
119 /* BSD compatibility */
120 #define IP_RECVRETOPTS IP_RETOPTS
121
122 /* TProxy original addresses */
123 #define IP_ORIGDSTADDR 20
124 #define IP_RECVORIGDSTADDR IP_ORIGDSTADDR
125
126 #define IP_MINTTL 21
127 #define IP_NODEFRAG 22
128 #define IP_CHECKSUM 23
129 #define IP_BIND_ADDRESS_NO_PORT 24
130 #define IP_RECVFRAGSIZE 25
131 #define IP_RECVERR_RFC4884 26
132
133 /* IP_MTU_DISCOVER values */
134 #define IP_PMTUDISC_DONT 0
135 #define IP_PMTUDISC_WANT 1
136 #define IP_PMTUDISC_DO 2
137 #define IP_PMTUDISC_PROBE 3
138 /* Always use interface mtu (ignores dst pmtu)
139 * Also incoming ICMP frag_needed notification
140 * this socket to prevent accepting spoofed on
141 */
142 #define IP_PMTUDISC_INTERFACE 4
143 /* weaker version of IP_PMTUDISC_INTERFACE, wh
144 * fragmented if they exeed the interface mtu
145 */
146 #define IP_PMTUDISC_OMIT 5
147
148 #define IP_MULTICAST_IF 32
149 #define IP_MULTICAST_TTL 33
150 #define IP_MULTICAST_LOOP 34
151 #define IP_ADD_MEMBERSHIP 35
152 #define IP_DROP_MEMBERSHIP 36
153 #define IP_UNBLOCK_SOURCE 37
154 #define IP_BLOCK_SOURCE 38
155 #define IP_ADD_SOURCE_MEMBERSHIP 39
156 #define IP_DROP_SOURCE_MEMBERSHIP 40
157 #define IP_MSFILTER 41
158 #define MCAST_JOIN_GROUP 42
159 #define MCAST_BLOCK_SOURCE 43
160 #define MCAST_UNBLOCK_SOURCE 44
161 #define MCAST_LEAVE_GROUP 45
162 #define MCAST_JOIN_SOURCE_GROUP 46
163 #define MCAST_LEAVE_SOURCE_GROUP 47
164 #define MCAST_MSFILTER 48
165 #define IP_MULTICAST_ALL 49
166 #define IP_UNICAST_IF 50
167 #define IP_LOCAL_PORT_RANGE 51
168 #define IP_PROTOCOL 52
169
170 #define MCAST_EXCLUDE 0
171 #define MCAST_INCLUDE 1
172
173 /* These need to appear somewhere around here
174 #define IP_DEFAULT_MULTICAST_TTL 1
175 #define IP_DEFAULT_MULTICAST_LOOP 1
176
177 /* Request struct for multicast socket ops */
178
179 #if __UAPI_DEF_IP_MREQ
180 struct ip_mreq {
181 struct in_addr imr_multiaddr; /* IP
182 struct in_addr imr_interface; /* loc
183 };
184
185 struct ip_mreqn {
186 struct in_addr imr_multiaddr;
187 struct in_addr imr_address;
188 int imr_ifindex;
189 };
190
191 struct ip_mreq_source {
192 __be32 imr_multiaddr;
193 __be32 imr_interface;
194 __be32 imr_sourceaddr;
195 };
196
197 struct ip_msfilter {
198 __be32 imsf_multiaddr;
199 __be32 imsf_interface;
200 __u32 imsf_fmode;
201 __u32 imsf_numsrc;
202 union {
203 __be32 imsf_slist[1];
204 __DECLARE_FLEX_ARRAY(__be32, i
205 };
206 };
207
208 #define IP_MSFILTER_SIZE(numsrc) \
209 (sizeof(struct ip_msfilter) - sizeof(_
210 + (numsrc) * sizeof(__u32))
211
212 struct group_req {
213 __u32 gr_in
214 struct __kernel_sockaddr_storage gr_gr
215 };
216
217 struct group_source_req {
218 __u32 gsr_i
219 struct __kernel_sockaddr_storage gsr_g
220 struct __kernel_sockaddr_storage gsr_s
221 };
222
223 struct group_filter {
224 union {
225 struct {
226 __u32
227 struct __kernel_sockad
228 __u32
229 __u32
230 struct __kernel_sockad
231 };
232 struct {
233 __u32
234 struct __kernel_sockad
235 __u32
236 __u32
237 struct __kernel_sockad
238 };
239 };
240 };
241
242 #define GROUP_FILTER_SIZE(numsrc) \
243 (sizeof(struct group_filter) - sizeof(
244 + (numsrc) * sizeof(struct __kernel_so
245 #endif
246
247 #if __UAPI_DEF_IN_PKTINFO
248 struct in_pktinfo {
249 int ipi_ifindex;
250 struct in_addr ipi_spec_dst;
251 struct in_addr ipi_addr;
252 };
253 #endif
254
255 /* Structure describing an Internet (IP) socke
256 #if __UAPI_DEF_SOCKADDR_IN
257 #define __SOCK_SIZE__ 16 /* siz
258 struct sockaddr_in {
259 __kernel_sa_family_t sin_family; /* Add
260 __be16 sin_port; /* Por
261 struct in_addr sin_addr; /* Int
262
263 /* Pad to size of `struct sockaddr'. */
264 unsigned char __pad[__SOCK_SIZE__ -
265 sizeof(unsigned short
266 };
267 #define sin_zero __pad /* for
268 #endif
269
270 #if __UAPI_DEF_IN_CLASS
271 /*
272 * Definitions of the bits in an Internet addr
273 * On subnets, host and network parts are foun
274 * to the subnet mask, not these masks.
275 */
276 #define IN_CLASSA(a) ((((long int)
277 #define IN_CLASSA_NET 0xff000000
278 #define IN_CLASSA_NSHIFT 24
279 #define IN_CLASSA_HOST (0xffffffff &
280 #define IN_CLASSA_MAX 128
281
282 #define IN_CLASSB(a) ((((long int)
283 #define IN_CLASSB_NET 0xffff0000
284 #define IN_CLASSB_NSHIFT 16
285 #define IN_CLASSB_HOST (0xffffffff &
286 #define IN_CLASSB_MAX 65536
287
288 #define IN_CLASSC(a) ((((long int)
289 #define IN_CLASSC_NET 0xffffff00
290 #define IN_CLASSC_NSHIFT 8
291 #define IN_CLASSC_HOST (0xffffffff &
292
293 #define IN_CLASSD(a) ((((long int)
294 #define IN_MULTICAST(a) IN_CLASSD(a)
295 #define IN_MULTICAST_NET 0xe0000000
296
297 #define IN_BADCLASS(a) (((long int) (
298 #define IN_EXPERIMENTAL(a) IN_BADCLASS((a
299
300 #define IN_CLASSE(a) ((((long int)
301 #define IN_CLASSE_NET 0xffffffff
302 #define IN_CLASSE_NSHIFT 0
303
304 /* Address to accept any incoming messages. */
305 #define INADDR_ANY ((unsigned lon
306
307 /* Address to send to all hosts. */
308 #define INADDR_BROADCAST ((unsigned lon
309
310 /* Address indicating an error return. */
311 #define INADDR_NONE ((unsigned lon
312
313 /* Dummy address for src of ICMP replies if no
314 #define INADDR_DUMMY ((unsigned lon
315
316 /* Network number for local host loopback. */
317 #define IN_LOOPBACKNET 127
318
319 /* Address to loopback in software to local ho
320 #define INADDR_LOOPBACK 0x7f000001
321 #define IN_LOOPBACK(a) ((((long int)
322
323 /* Defines for Multicast INADDR */
324 #define INADDR_UNSPEC_GROUP 0xe000
325 #define INADDR_ALLHOSTS_GROUP 0xe000
326 #define INADDR_ALLRTRS_GROUP 0xe000
327 #define INADDR_ALLSNOOPERS_GROUP 0xe000
328 #define INADDR_MAX_LOCAL_GROUP 0xe000
329 #endif
330
331 /* <asm/byteorder.h> contains the htonl type s
332 #include <asm/byteorder.h>
333
334
335 #endif /* _UAPI_LINUX_IN_H */
336
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.