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oasis-root

Compiled tree of Oasis Linux based on own branch at <https://hacktivis.me/git/oasis/> git clone https://anongit.hacktivis.me/git/oasis-root.git

in.h (10956B)


  1. /* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
  2. /*
  3. * INET An implementation of the TCP/IP protocol suite for the LINUX
  4. * operating system. INET is implemented using the BSD Socket
  5. * interface as the means of communication with the user level.
  6. *
  7. * Definitions of the Internet Protocol.
  8. *
  9. * Version: @(#)in.h 1.0.1 04/21/93
  10. *
  11. * Authors: Original taken from the GNU Project <netinet/in.h> file.
  12. * Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
  13. *
  14. * This program is free software; you can redistribute it and/or
  15. * modify it under the terms of the GNU General Public License
  16. * as published by the Free Software Foundation; either version
  17. * 2 of the License, or (at your option) any later version.
  18. */
  19. #ifndef _LINUX_IN_H
  20. #define _LINUX_IN_H
  21. #include <linux/types.h>
  22. #include <linux/stddef.h>
  23. #include <linux/libc-compat.h>
  24. #include <linux/socket.h>
  25. #if __UAPI_DEF_IN_IPPROTO
  26. /* Standard well-defined IP protocols. */
  27. enum {
  28. IPPROTO_IP = 0, /* Dummy protocol for TCP */
  29. #define IPPROTO_IP IPPROTO_IP
  30. IPPROTO_ICMP = 1, /* Internet Control Message Protocol */
  31. #define IPPROTO_ICMP IPPROTO_ICMP
  32. IPPROTO_IGMP = 2, /* Internet Group Management Protocol */
  33. #define IPPROTO_IGMP IPPROTO_IGMP
  34. IPPROTO_IPIP = 4, /* IPIP tunnels (older KA9Q tunnels use 94) */
  35. #define IPPROTO_IPIP IPPROTO_IPIP
  36. IPPROTO_TCP = 6, /* Transmission Control Protocol */
  37. #define IPPROTO_TCP IPPROTO_TCP
  38. IPPROTO_EGP = 8, /* Exterior Gateway Protocol */
  39. #define IPPROTO_EGP IPPROTO_EGP
  40. IPPROTO_PUP = 12, /* PUP protocol */
  41. #define IPPROTO_PUP IPPROTO_PUP
  42. IPPROTO_UDP = 17, /* User Datagram Protocol */
  43. #define IPPROTO_UDP IPPROTO_UDP
  44. IPPROTO_IDP = 22, /* XNS IDP protocol */
  45. #define IPPROTO_IDP IPPROTO_IDP
  46. IPPROTO_TP = 29, /* SO Transport Protocol Class 4 */
  47. #define IPPROTO_TP IPPROTO_TP
  48. IPPROTO_DCCP = 33, /* Datagram Congestion Control Protocol */
  49. #define IPPROTO_DCCP IPPROTO_DCCP
  50. IPPROTO_IPV6 = 41, /* IPv6-in-IPv4 tunnelling */
  51. #define IPPROTO_IPV6 IPPROTO_IPV6
  52. IPPROTO_RSVP = 46, /* RSVP Protocol */
  53. #define IPPROTO_RSVP IPPROTO_RSVP
  54. IPPROTO_GRE = 47, /* Cisco GRE tunnels (rfc 1701,1702) */
  55. #define IPPROTO_GRE IPPROTO_GRE
  56. IPPROTO_ESP = 50, /* Encapsulation Security Payload protocol */
  57. #define IPPROTO_ESP IPPROTO_ESP
  58. IPPROTO_AH = 51, /* Authentication Header protocol */
  59. #define IPPROTO_AH IPPROTO_AH
  60. IPPROTO_MTP = 92, /* Multicast Transport Protocol */
  61. #define IPPROTO_MTP IPPROTO_MTP
  62. IPPROTO_BEETPH = 94, /* IP option pseudo header for BEET */
  63. #define IPPROTO_BEETPH IPPROTO_BEETPH
  64. IPPROTO_ENCAP = 98, /* Encapsulation Header */
  65. #define IPPROTO_ENCAP IPPROTO_ENCAP
  66. IPPROTO_PIM = 103, /* Protocol Independent Multicast */
  67. #define IPPROTO_PIM IPPROTO_PIM
  68. IPPROTO_COMP = 108, /* Compression Header Protocol */
  69. #define IPPROTO_COMP IPPROTO_COMP
  70. IPPROTO_L2TP = 115, /* Layer 2 Tunnelling Protocol */
  71. #define IPPROTO_L2TP IPPROTO_L2TP
  72. IPPROTO_SCTP = 132, /* Stream Control Transport Protocol */
  73. #define IPPROTO_SCTP IPPROTO_SCTP
  74. IPPROTO_UDPLITE = 136, /* UDP-Lite (RFC 3828) */
  75. #define IPPROTO_UDPLITE IPPROTO_UDPLITE
  76. IPPROTO_MPLS = 137, /* MPLS in IP (RFC 4023) */
  77. #define IPPROTO_MPLS IPPROTO_MPLS
  78. IPPROTO_ETHERNET = 143, /* Ethernet-within-IPv6 Encapsulation */
  79. #define IPPROTO_ETHERNET IPPROTO_ETHERNET
  80. IPPROTO_RAW = 255, /* Raw IP packets */
  81. #define IPPROTO_RAW IPPROTO_RAW
  82. IPPROTO_SMC = 256, /* Shared Memory Communications */
  83. #define IPPROTO_SMC IPPROTO_SMC
  84. IPPROTO_MPTCP = 262, /* Multipath TCP connection */
  85. #define IPPROTO_MPTCP IPPROTO_MPTCP
  86. IPPROTO_MAX
  87. };
  88. #endif
  89. #if __UAPI_DEF_IN_ADDR
  90. /* Internet address. */
  91. struct in_addr {
  92. __be32 s_addr;
  93. };
  94. #endif
  95. #define IP_TOS 1
  96. #define IP_TTL 2
  97. #define IP_HDRINCL 3
  98. #define IP_OPTIONS 4
  99. #define IP_ROUTER_ALERT 5
  100. #define IP_RECVOPTS 6
  101. #define IP_RETOPTS 7
  102. #define IP_PKTINFO 8
  103. #define IP_PKTOPTIONS 9
  104. #define IP_MTU_DISCOVER 10
  105. #define IP_RECVERR 11
  106. #define IP_RECVTTL 12
  107. #define IP_RECVTOS 13
  108. #define IP_MTU 14
  109. #define IP_FREEBIND 15
  110. #define IP_IPSEC_POLICY 16
  111. #define IP_XFRM_POLICY 17
  112. #define IP_PASSSEC 18
  113. #define IP_TRANSPARENT 19
  114. /* BSD compatibility */
  115. #define IP_RECVRETOPTS IP_RETOPTS
  116. /* TProxy original addresses */
  117. #define IP_ORIGDSTADDR 20
  118. #define IP_RECVORIGDSTADDR IP_ORIGDSTADDR
  119. #define IP_MINTTL 21
  120. #define IP_NODEFRAG 22
  121. #define IP_CHECKSUM 23
  122. #define IP_BIND_ADDRESS_NO_PORT 24
  123. #define IP_RECVFRAGSIZE 25
  124. #define IP_RECVERR_RFC4884 26
  125. /* IP_MTU_DISCOVER values */
  126. #define IP_PMTUDISC_DONT 0 /* Never send DF frames */
  127. #define IP_PMTUDISC_WANT 1 /* Use per route hints */
  128. #define IP_PMTUDISC_DO 2 /* Always DF */
  129. #define IP_PMTUDISC_PROBE 3 /* Ignore dst pmtu */
  130. /* Always use interface mtu (ignores dst pmtu) but don't set DF flag.
  131. * Also incoming ICMP frag_needed notifications will be ignored on
  132. * this socket to prevent accepting spoofed ones.
  133. */
  134. #define IP_PMTUDISC_INTERFACE 4
  135. /* weaker version of IP_PMTUDISC_INTERFACE, which allows packets to get
  136. * fragmented if they exceed the interface mtu
  137. */
  138. #define IP_PMTUDISC_OMIT 5
  139. #define IP_MULTICAST_IF 32
  140. #define IP_MULTICAST_TTL 33
  141. #define IP_MULTICAST_LOOP 34
  142. #define IP_ADD_MEMBERSHIP 35
  143. #define IP_DROP_MEMBERSHIP 36
  144. #define IP_UNBLOCK_SOURCE 37
  145. #define IP_BLOCK_SOURCE 38
  146. #define IP_ADD_SOURCE_MEMBERSHIP 39
  147. #define IP_DROP_SOURCE_MEMBERSHIP 40
  148. #define IP_MSFILTER 41
  149. #define MCAST_JOIN_GROUP 42
  150. #define MCAST_BLOCK_SOURCE 43
  151. #define MCAST_UNBLOCK_SOURCE 44
  152. #define MCAST_LEAVE_GROUP 45
  153. #define MCAST_JOIN_SOURCE_GROUP 46
  154. #define MCAST_LEAVE_SOURCE_GROUP 47
  155. #define MCAST_MSFILTER 48
  156. #define IP_MULTICAST_ALL 49
  157. #define IP_UNICAST_IF 50
  158. #define IP_LOCAL_PORT_RANGE 51
  159. #define IP_PROTOCOL 52
  160. #define MCAST_EXCLUDE 0
  161. #define MCAST_INCLUDE 1
  162. /* These need to appear somewhere around here */
  163. #define IP_DEFAULT_MULTICAST_TTL 1
  164. #define IP_DEFAULT_MULTICAST_LOOP 1
  165. /* Request struct for multicast socket ops */
  166. #if __UAPI_DEF_IP_MREQ
  167. struct ip_mreq {
  168. struct in_addr imr_multiaddr; /* IP multicast address of group */
  169. struct in_addr imr_interface; /* local IP address of interface */
  170. };
  171. struct ip_mreqn {
  172. struct in_addr imr_multiaddr; /* IP multicast address of group */
  173. struct in_addr imr_address; /* local IP address of interface */
  174. int imr_ifindex; /* Interface index */
  175. };
  176. struct ip_mreq_source {
  177. __be32 imr_multiaddr;
  178. __be32 imr_interface;
  179. __be32 imr_sourceaddr;
  180. };
  181. struct ip_msfilter {
  182. __be32 imsf_multiaddr;
  183. __be32 imsf_interface;
  184. __u32 imsf_fmode;
  185. __u32 imsf_numsrc;
  186. union {
  187. __be32 imsf_slist[1];
  188. __DECLARE_FLEX_ARRAY(__be32, imsf_slist_flex);
  189. };
  190. };
  191. #define IP_MSFILTER_SIZE(numsrc) \
  192. (sizeof(struct ip_msfilter) - sizeof(__u32) \
  193. + (numsrc) * sizeof(__u32))
  194. struct group_req {
  195. __u32 gr_interface; /* interface index */
  196. struct __kernel_sockaddr_storage gr_group; /* group address */
  197. };
  198. struct group_source_req {
  199. __u32 gsr_interface; /* interface index */
  200. struct __kernel_sockaddr_storage gsr_group; /* group address */
  201. struct __kernel_sockaddr_storage gsr_source; /* source address */
  202. };
  203. struct group_filter {
  204. union {
  205. struct {
  206. __u32 gf_interface_aux; /* interface index */
  207. struct __kernel_sockaddr_storage gf_group_aux; /* multicast address */
  208. __u32 gf_fmode_aux; /* filter mode */
  209. __u32 gf_numsrc_aux; /* number of sources */
  210. struct __kernel_sockaddr_storage gf_slist[1]; /* interface index */
  211. };
  212. struct {
  213. __u32 gf_interface; /* interface index */
  214. struct __kernel_sockaddr_storage gf_group; /* multicast address */
  215. __u32 gf_fmode; /* filter mode */
  216. __u32 gf_numsrc; /* number of sources */
  217. struct __kernel_sockaddr_storage gf_slist_flex[]; /* interface index */
  218. };
  219. };
  220. };
  221. #define GROUP_FILTER_SIZE(numsrc) \
  222. (sizeof(struct group_filter) - sizeof(struct __kernel_sockaddr_storage) \
  223. + (numsrc) * sizeof(struct __kernel_sockaddr_storage))
  224. #endif
  225. #if __UAPI_DEF_IN_PKTINFO
  226. struct in_pktinfo {
  227. int ipi_ifindex;
  228. struct in_addr ipi_spec_dst;
  229. struct in_addr ipi_addr;
  230. };
  231. #endif
  232. /* Structure describing an Internet (IP) socket address. */
  233. #if __UAPI_DEF_SOCKADDR_IN
  234. #define __SOCK_SIZE__ 16 /* sizeof(struct sockaddr) */
  235. struct sockaddr_in {
  236. __kernel_sa_family_t sin_family; /* Address family */
  237. __be16 sin_port; /* Port number */
  238. struct in_addr sin_addr; /* Internet address */
  239. /* Pad to size of `struct sockaddr'. */
  240. unsigned char __pad[__SOCK_SIZE__ - sizeof(short int) -
  241. sizeof(unsigned short int) - sizeof(struct in_addr)];
  242. };
  243. #define sin_zero __pad /* for BSD UNIX comp. -FvK */
  244. #endif
  245. #if __UAPI_DEF_IN_CLASS
  246. /*
  247. * Definitions of the bits in an Internet address integer.
  248. * On subnets, host and network parts are found according
  249. * to the subnet mask, not these masks.
  250. */
  251. #define IN_CLASSA(a) ((((long int) (a)) & 0x80000000) == 0)
  252. #define IN_CLASSA_NET 0xff000000
  253. #define IN_CLASSA_NSHIFT 24
  254. #define IN_CLASSA_HOST (0xffffffff & ~IN_CLASSA_NET)
  255. #define IN_CLASSA_MAX 128
  256. #define IN_CLASSB(a) ((((long int) (a)) & 0xc0000000) == 0x80000000)
  257. #define IN_CLASSB_NET 0xffff0000
  258. #define IN_CLASSB_NSHIFT 16
  259. #define IN_CLASSB_HOST (0xffffffff & ~IN_CLASSB_NET)
  260. #define IN_CLASSB_MAX 65536
  261. #define IN_CLASSC(a) ((((long int) (a)) & 0xe0000000) == 0xc0000000)
  262. #define IN_CLASSC_NET 0xffffff00
  263. #define IN_CLASSC_NSHIFT 8
  264. #define IN_CLASSC_HOST (0xffffffff & ~IN_CLASSC_NET)
  265. #define IN_CLASSD(a) ((((long int) (a)) & 0xf0000000) == 0xe0000000)
  266. #define IN_MULTICAST(a) IN_CLASSD(a)
  267. #define IN_MULTICAST_NET 0xe0000000
  268. #define IN_BADCLASS(a) (((long int) (a) ) == (long int)0xffffffff)
  269. #define IN_EXPERIMENTAL(a) IN_BADCLASS((a))
  270. #define IN_CLASSE(a) ((((long int) (a)) & 0xf0000000) == 0xf0000000)
  271. #define IN_CLASSE_NET 0xffffffff
  272. #define IN_CLASSE_NSHIFT 0
  273. /* Address to accept any incoming messages. */
  274. #define INADDR_ANY ((unsigned long int) 0x00000000)
  275. /* Address to send to all hosts. */
  276. #define INADDR_BROADCAST ((unsigned long int) 0xffffffff)
  277. /* Address indicating an error return. */
  278. #define INADDR_NONE ((unsigned long int) 0xffffffff)
  279. /* Dummy address for src of ICMP replies if no real address is set (RFC7600). */
  280. #define INADDR_DUMMY ((unsigned long int) 0xc0000008)
  281. /* Network number for local host loopback. */
  282. #define IN_LOOPBACKNET 127
  283. /* Address to loopback in software to local host. */
  284. #define INADDR_LOOPBACK 0x7f000001 /* 127.0.0.1 */
  285. #define IN_LOOPBACK(a) ((((long int) (a)) & 0xff000000) == 0x7f000000)
  286. /* Defines for Multicast INADDR */
  287. #define INADDR_UNSPEC_GROUP 0xe0000000U /* 224.0.0.0 */
  288. #define INADDR_ALLHOSTS_GROUP 0xe0000001U /* 224.0.0.1 */
  289. #define INADDR_ALLRTRS_GROUP 0xe0000002U /* 224.0.0.2 */
  290. #define INADDR_ALLSNOOPERS_GROUP 0xe000006aU /* 224.0.0.106 */
  291. #define INADDR_MAX_LOCAL_GROUP 0xe00000ffU /* 224.0.0.255 */
  292. #endif
  293. /* <asm/byteorder.h> contains the htonl type stuff.. */
  294. #include <asm/byteorder.h>
  295. #endif /* _LINUX_IN_H */