1 /* System-specific socket constants and types. Linux version.
2 Copyright (C) 1991,1992,1994-2001,2004,2006 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
19 #ifndef __BITS_SOCKET_H
20 #define __BITS_SOCKET_H
22 #if !defined _SYS_SOCKET_H && !defined _NETINET_IN_H
23 # error "Never include <bits/socket.h> directly; use <sys/socket.h> instead."
31 #include <sys/types.h>
33 /* Type for length arguments in socket calls. */
34 #ifndef __socklen_t_defined
35 typedef __socklen_t socklen_t;
36 # define __socklen_t_defined
39 /* Types of sockets. */
42 SOCK_STREAM = 1, /* Sequenced, reliable, connection-based
44 #define SOCK_STREAM SOCK_STREAM
45 SOCK_DGRAM = 2, /* Connectionless, unreliable datagrams
46 of fixed maximum length. */
47 #define SOCK_DGRAM SOCK_DGRAM
48 SOCK_RAW = 3, /* Raw protocol interface. */
49 #define SOCK_RAW SOCK_RAW
50 SOCK_RDM = 4, /* Reliably-delivered messages. */
51 #define SOCK_RDM SOCK_RDM
52 SOCK_SEQPACKET = 5, /* Sequenced, reliable, connection-based,
53 datagrams of fixed maximum length. */
54 #define SOCK_SEQPACKET SOCK_SEQPACKET
55 SOCK_PACKET = 10 /* Linux specific way of getting packets
56 at the dev level. For writing rarp and
57 other similar things on the user level. */
58 #define SOCK_PACKET SOCK_PACKET
61 /* Protocol families. */
62 #define PF_UNSPEC 0 /* Unspecified. */
63 #define PF_LOCAL 1 /* Local to host (pipes and file-domain). */
64 #define PF_UNIX PF_LOCAL /* Old BSD name for PF_LOCAL. */
65 #define PF_FILE PF_LOCAL /* Another non-standard name for PF_LOCAL. */
66 #define PF_INET 2 /* IP protocol family. */
67 #define PF_AX25 3 /* Amateur Radio AX.25. */
68 #define PF_IPX 4 /* Novell Internet Protocol. */
69 #define PF_APPLETALK 5 /* Appletalk DDP. */
70 #define PF_NETROM 6 /* Amateur radio NetROM. */
71 #define PF_BRIDGE 7 /* Multiprotocol bridge. */
72 #define PF_ATMPVC 8 /* ATM PVCs. */
73 #define PF_X25 9 /* Reserved for X.25 project. */
74 #define PF_INET6 10 /* IP version 6. */
75 #define PF_ROSE 11 /* Amateur Radio X.25 PLP. */
76 #define PF_DECnet 12 /* Reserved for DECnet project. */
77 #define PF_NETBEUI 13 /* Reserved for 802.2LLC project. */
78 #define PF_SECURITY 14 /* Security callback pseudo AF. */
79 #define PF_KEY 15 /* PF_KEY key management API. */
81 #define PF_ROUTE PF_NETLINK /* Alias to emulate 4.4BSD. */
82 #define PF_PACKET 17 /* Packet family. */
83 #define PF_ASH 18 /* Ash. */
84 #define PF_ECONET 19 /* Acorn Econet. */
85 #define PF_ATMSVC 20 /* ATM SVCs. */
86 #define PF_SNA 22 /* Linux SNA Project */
87 #define PF_IRDA 23 /* IRDA sockets. */
88 #define PF_PPPOX 24 /* PPPoX sockets. */
89 #define PF_WANPIPE 25 /* Wanpipe API sockets. */
90 #define PF_LLC 26 /* Linux LLC. */
91 #define PF_CAN 29 /* Controller Area Network. */
92 #define PF_TIPC 30 /* TIPC sockets. */
93 #define PF_BLUETOOTH 31 /* Bluetooth sockets. */
94 #define PF_IUCV 32 /* IUCV sockets. */
95 #define PF_RXRPC 33 /* RxRPC sockets. */
96 #define PF_ISDN 34 /* mISDN sockets. */
97 #define PF_PHONET 35 /* Phonet sockets. */
98 #define PF_IEEE802154 36 /* IEEE 802.15.4 sockets. */
99 #define PF_CAIF 37 /* CAIF sockets. */
100 #define PF_ALG 38 /* Algorithm sockets. */
101 #define PF_MAX 39 /* For now.. */
103 /* Address families. */
104 #define AF_UNSPEC PF_UNSPEC
105 #define AF_LOCAL PF_LOCAL
106 #define AF_UNIX PF_UNIX
107 #define AF_FILE PF_FILE
108 #define AF_INET PF_INET
109 #define AF_AX25 PF_AX25
110 #define AF_IPX PF_IPX
111 #define AF_APPLETALK PF_APPLETALK
112 #define AF_NETROM PF_NETROM
113 #define AF_BRIDGE PF_BRIDGE
114 #define AF_ATMPVC PF_ATMPVC
115 #define AF_X25 PF_X25
116 #define AF_INET6 PF_INET6
117 #define AF_ROSE PF_ROSE
118 #define AF_DECnet PF_DECnet
119 #define AF_NETBEUI PF_NETBEUI
120 #define AF_SECURITY PF_SECURITY
121 #define AF_KEY PF_KEY
122 #define AF_NETLINK PF_NETLINK
123 #define AF_ROUTE PF_ROUTE
124 #define AF_PACKET PF_PACKET
125 #define AF_ASH PF_ASH
126 #define AF_ECONET PF_ECONET
127 #define AF_ATMSVC PF_ATMSVC
128 #define AF_SNA PF_SNA
129 #define AF_IRDA PF_IRDA
130 #define AF_PPPOX PF_PPPOX
131 #define AF_WANPIPE PF_WANPIPE
132 #define AF_LLC PF_LLC
133 #define AF_CAN PF_CAN
134 #define AF_TIPC PF_TIPC
135 #define AF_BLUETOOTH PF_BLUETOOTH
136 #define AF_IUCV PF_IUCV
137 #define AF_RXRPC PF_RXRPC
138 #define AF_ISDN PF_ISDN
139 #define AF_PHONET PF_PHONET
140 #define AF_IEEE802154 PF_IEEE802154
141 #define AF_CAIF PF_CAIF
142 #define AF_ALG PF_ALG
143 #define AF_MAX PF_MAX
145 /* Socket level values. Others are defined in the appropriate headers.
147 XXX These definitions also should go into the appropriate headers as
148 far as they are available. */
150 #define SOL_DECNET 261
152 #define SOL_PACKET 263
153 #define SOL_ATM 264 /* ATM layer (cell level). */
154 #define SOL_AAL 265 /* ATM Adaption Layer (packet level). */
157 /* Maximum queue length specifiable by listen. */
158 #define SOMAXCONN 128
160 /* Get the definition of the macro to define the common sockaddr members. */
161 #include <bits/sockaddr.h>
163 /* Structure describing a generic socket address. */
166 __SOCKADDR_COMMON (sa_); /* Common data: address family and length. */
167 char sa_data[14]; /* Address data. */
171 /* Structure large enough to hold any socket address (with the historical
172 exception of AF_UNIX). We reserve 128 bytes. */
173 #if ULONG_MAX > 0xffffffff
174 # define __ss_aligntype __uint64_t
176 # define __ss_aligntype __uint32_t
179 #define _SS_PADSIZE (_SS_SIZE - (2 * sizeof (__ss_aligntype)))
181 struct sockaddr_storage
183 __SOCKADDR_COMMON (ss_); /* Address family, etc. */
184 __ss_aligntype __ss_align; /* Force desired alignment. */
185 char __ss_padding[_SS_PADSIZE];
189 /* Bits in the FLAGS argument to `send', `recv', et al. */
192 MSG_OOB = 0x01, /* Process out-of-band data. */
193 #define MSG_OOB MSG_OOB
194 MSG_PEEK = 0x02, /* Peek at incoming messages. */
195 #define MSG_PEEK MSG_PEEK
196 MSG_DONTROUTE = 0x04, /* Don't use local routing. */
197 #define MSG_DONTROUTE MSG_DONTROUTE
199 /* DECnet uses a different name. */
200 MSG_TRYHARD = MSG_DONTROUTE,
201 # define MSG_TRYHARD MSG_DONTROUTE
203 MSG_CTRUNC = 0x08, /* Control data lost before delivery. */
204 #define MSG_CTRUNC MSG_CTRUNC
205 MSG_PROXY = 0x10, /* Supply or ask second address. */
206 #define MSG_PROXY MSG_PROXY
208 #define MSG_TRUNC MSG_TRUNC
209 MSG_DONTWAIT = 0x40, /* Nonblocking IO. */
210 #define MSG_DONTWAIT MSG_DONTWAIT
211 MSG_EOR = 0x80, /* End of record. */
212 #define MSG_EOR MSG_EOR
213 MSG_WAITALL = 0x100, /* Wait for a full request. */
214 #define MSG_WAITALL MSG_WAITALL
216 #define MSG_FIN MSG_FIN
218 #define MSG_SYN MSG_SYN
219 MSG_CONFIRM = 0x800, /* Confirm path validity. */
220 #define MSG_CONFIRM MSG_CONFIRM
222 #define MSG_RST MSG_RST
223 MSG_ERRQUEUE = 0x2000, /* Fetch message from error queue. */
224 #define MSG_ERRQUEUE MSG_ERRQUEUE
225 MSG_NOSIGNAL = 0x4000, /* Do not generate SIGPIPE. */
226 #define MSG_NOSIGNAL MSG_NOSIGNAL
227 MSG_MORE = 0x8000 /* Sender will send more. */
228 #define MSG_MORE MSG_MORE
232 /* Structure describing messages sent by
233 `sendmsg' and received by `recvmsg'. */
234 /* Note: do not change these members to match glibc; these match the
235 SuSv3 spec already (e.g. msg_iovlen/msg_controllen).
236 http://www.opengroup.org/onlinepubs/009695399/basedefs/sys/socket.h.html */
237 /* Note: linux kernel uses __kernel_size_t (which is 8bytes on 64bit
238 platforms, and 4bytes on 32bit platforms) for msg_iovlen/msg_controllen */
241 void *msg_name; /* Address to send to/receive from. */
242 socklen_t msg_namelen; /* Length of address data. */
244 struct iovec *msg_iov; /* Vector of data to send/receive into. */
246 int msg_iovlen; /* Number of elements in the vector. */
248 size_t msg_iovlen; /* Number of elements in the vector. */
251 void *msg_control; /* Ancillary data (eg BSD filedesc passing). */
253 socklen_t msg_controllen; /* Ancillary data buffer length. */
255 size_t msg_controllen; /* Ancillary data buffer length. */
258 int msg_flags; /* Flags on received message. */
261 /* Structure used for storage of ancillary data object information. */
264 size_t cmsg_len; /* Length of data in cmsg_data plus length
265 of cmsghdr structure. */
266 int cmsg_level; /* Originating protocol. */
267 int cmsg_type; /* Protocol specific type. */
268 #if (!defined __STRICT_ANSI__ && __GNUC__ >= 2) || __STDC_VERSION__ >= 199901L
269 __extension__ unsigned char __cmsg_data __flexarr; /* Ancillary data. */
273 /* Ancillary data object manipulation macros. */
274 #if (!defined __STRICT_ANSI__ && __GNUC__ >= 2) || __STDC_VERSION__ >= 199901L
275 # define CMSG_DATA(cmsg) ((cmsg)->__cmsg_data)
277 # define CMSG_DATA(cmsg) ((unsigned char *) ((struct cmsghdr *) (cmsg) + 1))
279 #define CMSG_NXTHDR(mhdr, cmsg) __cmsg_nxthdr (mhdr, cmsg)
280 #define CMSG_FIRSTHDR(mhdr) \
281 ((size_t) (mhdr)->msg_controllen >= sizeof (struct cmsghdr) \
282 ? (struct cmsghdr *) (mhdr)->msg_control : (struct cmsghdr *) NULL)
283 #define CMSG_ALIGN(len) (((len) + sizeof (size_t) - 1) \
284 & (size_t) ~(sizeof (size_t) - 1))
285 #define CMSG_SPACE(len) (CMSG_ALIGN (len) \
286 + CMSG_ALIGN (sizeof (struct cmsghdr)))
287 #define CMSG_LEN(len) (CMSG_ALIGN (sizeof (struct cmsghdr)) + (len))
289 extern struct cmsghdr *__cmsg_nxthdr (struct msghdr *__mhdr,
290 struct cmsghdr *__cmsg) __THROW;
291 libc_hidden_proto(__cmsg_nxthdr)
292 #ifdef __USE_EXTERN_INLINES
293 # ifndef _EXTERN_INLINE
294 # define _EXTERN_INLINE extern __inline
296 _EXTERN_INLINE struct cmsghdr *
297 __NTH (__cmsg_nxthdr (struct msghdr *__mhdr, struct cmsghdr *__cmsg))
299 if ((size_t) __cmsg->cmsg_len < sizeof (struct cmsghdr))
300 /* The kernel header does this so there may be a reason. */
303 __cmsg = (struct cmsghdr *) ((unsigned char *) __cmsg
304 + CMSG_ALIGN (__cmsg->cmsg_len));
305 if ((unsigned char *) (__cmsg + 1) > ((unsigned char *) __mhdr->msg_control
306 + __mhdr->msg_controllen)
307 || ((unsigned char *) __cmsg + CMSG_ALIGN (__cmsg->cmsg_len)
308 > ((unsigned char *) __mhdr->msg_control + __mhdr->msg_controllen)))
309 /* No more entries. */
313 #endif /* Use `extern inline'. */
315 /* Socket level message types. This must match the definitions in
319 SCM_RIGHTS = 0x01 /* Transfer file descriptors. */
320 #define SCM_RIGHTS SCM_RIGHTS
322 , SCM_CREDENTIALS = 0x02 /* Credentials passing. */
323 # define SCM_CREDENTIALS SCM_CREDENTIALS
327 /* User visible structure for SCM_CREDENTIALS message */
331 pid_t pid; /* PID of sending process. */
332 uid_t uid; /* UID of sending process. */
333 gid_t gid; /* GID of sending process. */
336 /* Get socket manipulation related informations from kernel headers. */
339 #include <asm/socket.h>
342 #include <asm/socket.h>
346 /* Structure used to manipulate the SO_LINGER option. */
349 int l_onoff; /* Nonzero to linger on close. */
350 int l_linger; /* Time to linger. */
353 /* Prefer socketcall over all these for sparc32,
354 since it only has socketcall */
359 #undef __NR_getpeername
360 #undef __NR_getsockname
361 #undef __NR_getsockopt
369 #undef __NR_setsockopt
372 #undef __NR_socketpair
375 #endif /* bits/socket.h */