in.h revision 17aa359b
1/*
2 * Copyright 2002-2012 Haiku, Inc. All Rights Reserved.
3 * Distributed under the terms of the MIT License.
4 */
5#ifndef _NETINET_IN_H_
6#define _NETINET_IN_H_
7
8
9#include <net/if.h>
10#include <endian.h>
11#include <stdint.h>
12#include <sys/types.h>
13
14/* RFC 2553 states that these must be available through <netinet/in.h> */
15#include <netinet6/in6.h>
16
17
18#ifdef __cplusplus
19extern "C" {
20#endif
21
22typedef uint16_t in_port_t;
23typedef uint32_t in_addr_t;
24
25/* We can't include <ByteOrder.h> since we are a posix file,
26 * and we are not allowed to import all the BeOS types here.
27 */
28#ifndef htonl
29#	ifdef __HAIKU_BEOS_COMPATIBLE_TYPES
30		extern unsigned long __swap_int32(unsigned long);	/* private */
31#	else
32		extern unsigned int __swap_int32(unsigned int);	/* private */
33#	endif
34	extern uint16_t __swap_int16(uint16_t);	/* private */
35#	if BYTE_ORDER == LITTLE_ENDIAN
36#		define htonl(x) ((uint32_t)__swap_int32(x))
37#		define ntohl(x) ((uint32_t)__swap_int32(x))
38#		define htons(x) __swap_int16(x)
39#		define ntohs(x) __swap_int16(x)
40#	elif BYTE_ORDER == BIG_ENDIAN
41#		define htonl(x) (x)
42#		define ntohl(x) (x)
43#		define htons(x) (x)
44#		define ntohs(x) (x)
45#	else
46#		error Unknown byte order.
47#	endif
48#endif
49
50
51/* Protocol definitions */
52#define IPPROTO_IP				0	/* 0, IPv4 */
53#define IPPROTO_HOPOPTS			0	/* 0, IPv6 hop-by-hop options */
54#define IPPROTO_ICMP			1	/* 1, ICMP (v4) */
55#define IPPROTO_IGMP			2	/* 2, IGMP (group management) */
56#define IPPROTO_TCP				6	/* 6, tcp */
57#define IPPROTO_UDP				17	/* 17, UDP */
58#define IPPROTO_IPV6			41	/* 41, IPv6 in IPv6 */
59#define IPPROTO_ROUTING			43	/* 43, Routing */
60#define IPPROTO_FRAGMENT		44	/* 44, IPv6 fragmentation header */
61#define IPPROTO_ESP				50	/* 50, Encap Sec. Payload */
62#define IPPROTO_AH				51	/* 51, Auth Header */
63#define IPPROTO_ICMPV6			58	/* 58, IPv6 ICMP */
64#define IPPROTO_NONE			59	/* 59, IPv6 no next header */
65#define IPPROTO_DSTOPTS			60	/* 60, IPv6 destination option */
66#define IPPROTO_ETHERIP			97	/* 97, Ethernet in IPv4 */
67#define IPPROTO_UDPLITE         136 /* 136, UDPLite */
68#define IPPROTO_RAW				255	/* 255 */
69
70#define IPPROTO_MAX				256
71
72
73/* Port numbers */
74
75#define IPPORT_RESERVED			1024
76	/* < IPPORT_RESERVED are privileged and should be accessible only by root */
77#define IPPORT_USERRESERVED		49151
78	/* > IPPORT_USERRESERVED are reserved for servers, though not requiring
79	 * privileged status
80	 */
81
82/* IP Version 4 address */
83struct in_addr {
84	in_addr_t s_addr;
85};
86
87/* IP Version 4 socket address */
88struct sockaddr_in {
89	uint8_t		sin_len;
90	uint8_t		sin_family;
91	uint16_t	sin_port;
92	struct in_addr 	sin_addr;
93	int8_t		sin_zero[24];
94};
95
96
97/* RFC 3678 - Socket Interface Extensions for Multicast Source Filters */
98
99struct ip_mreq {
100	struct in_addr imr_multiaddr; /* IP address of group */
101	struct in_addr imr_interface; /* IP address of interface */
102};
103
104struct ip_mreq_source {
105	struct in_addr imr_multiaddr;	/* IP address of group */
106	struct in_addr imr_sourceaddr;	/* IP address of source */
107	struct in_addr imr_interface;	/* IP address of interface */
108};
109
110struct group_req {
111	uint32_t                gr_interface; /* interface index */
112	struct sockaddr_storage gr_group;     /* group address */
113};
114
115struct group_source_req {
116	uint32_t                gsr_interface; /* interface index */
117	struct sockaddr_storage gsr_group;     /* group address */
118	struct sockaddr_storage gsr_source;    /* source address */
119};
120
121/*
122 * Options for use with [gs]etsockopt at the IP level.
123 * First word of comment is data type; bool is stored in int.
124 */
125#define IP_OPTIONS					1	/* buf/ip_opts; set/get IP options */
126#define IP_HDRINCL					2	/* int; header is included with data */
127#define IP_TOS						3
128	/* int; IP type of service and preced. */
129#define IP_TTL						4	/* int; IP time to live */
130#define IP_RECVOPTS					5	/* bool; receive all IP opts w/dgram */
131#define IP_RECVRETOPTS				6	/* bool; receive IP opts for response */
132#define IP_RECVDSTADDR				7	/* bool; receive IP dst addr w/dgram */
133#define IP_RETOPTS					8	/* ip_opts; set/get IP options */
134#define IP_MULTICAST_IF				9	/* in_addr; set/get IP multicast i/f  */
135#define IP_MULTICAST_TTL			10	/* u_char; set/get IP multicast ttl */
136#define IP_MULTICAST_LOOP			11
137	/* u_char; set/get IP multicast loopback */
138#define IP_ADD_MEMBERSHIP			12
139	/* ip_mreq; add an IP group membership */
140#define IP_DROP_MEMBERSHIP			13
141	/* ip_mreq; drop an IP group membership */
142#define IP_BLOCK_SOURCE				14	/* ip_mreq_source */
143#define IP_UNBLOCK_SOURCE			15	/* ip_mreq_source */
144#define IP_ADD_SOURCE_MEMBERSHIP	16	/* ip_mreq_source */
145#define IP_DROP_SOURCE_MEMBERSHIP	17	/* ip_mreq_source */
146#define MCAST_JOIN_GROUP			18	/* group_req */
147#define MCAST_BLOCK_SOURCE			19	/* group_source_req */
148#define MCAST_UNBLOCK_SOURCE		20	/* group_source_req */
149#define MCAST_LEAVE_GROUP			21	/* group_req */
150#define MCAST_JOIN_SOURCE_GROUP		22	/* group_source_req */
151#define MCAST_LEAVE_SOURCE_GROUP	23	/* group_source_req */
152
153/* IPPROTO_IPV6 options */
154#define IPV6_MULTICAST_IF			24	/* int */
155#define IPV6_MULTICAST_HOPS			25	/* int */
156#define IPV6_MULTICAST_LOOP			26	/* int */
157
158#define IPV6_UNICAST_HOPS			27	/* int */
159#define IPV6_JOIN_GROUP				28	/* struct ipv6_mreq */
160#define IPV6_LEAVE_GROUP			29	/* struct ipv6_mreq */
161#define IPV6_V6ONLY					30	/* int */
162
163#define IPV6_PKTINFO				31	/* struct ipv6_pktinfo */
164#define IPV6_RECVPKTINFO			32	/* struct ipv6_pktinfo */
165#define IPV6_HOPLIMIT				33	/* int */
166#define IPV6_RECVHOPLIMIT			34	/* int */
167
168#define IPV6_HOPOPTS				35  /* struct ip6_hbh */
169#define IPV6_DSTOPTS				36  /* struct ip6_dest */
170#define IPV6_RTHDR					37  /* struct ip6_rthdr */
171
172#define INADDR_ANY					((in_addr_t)0x00000000)
173#define INADDR_LOOPBACK				((in_addr_t)0x7f000001)
174#define INADDR_BROADCAST			((in_addr_t)0xffffffff)	/* must be masked */
175
176#define INADDR_UNSPEC_GROUP			((in_addr_t)0xe0000000)	/* 224.0.0.0 */
177#define INADDR_ALLHOSTS_GROUP		((in_addr_t)0xe0000001)	/* 224.0.0.1 */
178#define INADDR_ALLROUTERS_GROUP		((in_addr_t)0xe0000002)	/* 224.0.0.2 */
179#define INADDR_MAX_LOCAL_GROUP		((in_addr_t)0xe00000ff)	/* 224.0.0.255 */
180
181#define IN_LOOPBACKNET				127
182
183#define INADDR_NONE					((in_addr_t)0xffffffff)
184
185#define IN_CLASSA(i)				(((in_addr_t)(i) & 0x80000000) == 0)
186#define IN_CLASSA_NET				0xff000000
187#define IN_CLASSA_NSHIFT			24
188#define IN_CLASSA_HOST				0x00ffffff
189#define IN_CLASSA_MAX				128
190
191#define IN_CLASSB(i)				(((in_addr_t)(i) & 0xc0000000) == 0x80000000)
192#define IN_CLASSB_NET				0xffff0000
193#define IN_CLASSB_NSHIFT			16
194#define IN_CLASSB_HOST				0x0000ffff
195#define IN_CLASSB_MAX				65536
196
197#define IN_CLASSC(i)				(((in_addr_t)(i) & 0xe0000000) == 0xc0000000)
198#define IN_CLASSC_NET				0xffffff00
199#define IN_CLASSC_NSHIFT			8
200#define IN_CLASSC_HOST				0x000000ff
201
202#define IN_CLASSD(i)				(((in_addr_t)(i) & 0xf0000000) == 0xe0000000)
203/* These ones aren't really net and host fields, but routing needn't know. */
204#define IN_CLASSD_NET				0xf0000000
205#define IN_CLASSD_NSHIFT			28
206#define IN_CLASSD_HOST				0x0fffffff
207
208#define IN_MULTICAST(i)				IN_CLASSD(i)
209
210#define IN_EXPERIMENTAL(i)			(((in_addr_t)(i) & 0xf0000000) == 0xf0000000)
211#define IN_BADCLASS(i)				(((in_addr_t)(i) & 0xf0000000) == 0xf0000000)
212
213#define IP_MAX_MEMBERSHIPS			20
214
215/* maximal length of the string representation of an IPv4 address */
216#define INET_ADDRSTRLEN				16
217
218/* some helpful macro's :) */
219#define in_hosteq(s, t)				((s).s_addr == (t).s_addr)
220#define in_nullhost(x)				((x).s_addr == INADDR_ANY)
221#define satosin(sa)					((struct sockaddr_in *)(sa))
222#define sintosa(sin)				((struct sockaddr *)(sin))
223
224#ifdef __cplusplus
225}
226#endif
227
228#endif	/* _NETINET_IN_H_ */
229