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, write to the Free
17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
20 #ifndef __BITS_SOCKET_H
21 #define __BITS_SOCKET_H
23 #if !defined _SYS_SOCKET_H && !defined _NETINET_IN_H
24 # error "Never include <bits/socket.h> directly; use <sys/socket.h> instead."
32 #include <sys/types.h>
34 /* Type for length arguments in socket calls. */
35 #ifndef __socklen_t_defined
36 typedef __socklen_t socklen_t;
37 # define __socklen_t_defined
40 /* Types of sockets. */
43 SOCK_STREAM = 1, /* Sequenced, reliable, connection-based
45 #define SOCK_STREAM SOCK_STREAM
46 SOCK_DGRAM = 2, /* Connectionless, unreliable datagrams
47 of fixed maximum length. */
48 #define SOCK_DGRAM SOCK_DGRAM
49 SOCK_RAW = 3, /* Raw protocol interface. */
50 #define SOCK_RAW SOCK_RAW
51 SOCK_RDM = 4, /* Reliably-delivered messages. */
52 #define SOCK_RDM SOCK_RDM
53 SOCK_SEQPACKET = 5, /* Sequenced, reliable, connection-based,
54 datagrams of fixed maximum length. */
55 #define SOCK_SEQPACKET SOCK_SEQPACKET
56 SOCK_PACKET = 10 /* Linux specific way of getting packets
57 at the dev level. For writing rarp and
58 other similar things on the user level. */
59 #define SOCK_PACKET SOCK_PACKET
62 /* Protocol families. */
63 #define PF_UNSPEC 0 /* Unspecified. */
64 #define PF_LOCAL 1 /* Local to host (pipes and file-domain). */
65 #define PF_UNIX PF_LOCAL /* Old BSD name for PF_LOCAL. */
66 #define PF_FILE PF_LOCAL /* Another non-standard name for PF_LOCAL. */
67 #define PF_INET 2 /* IP protocol family. */
68 #define PF_AX25 3 /* Amateur Radio AX.25. */
69 #define PF_IPX 4 /* Novell Internet Protocol. */
70 #define PF_APPLETALK 5 /* Appletalk DDP. */
71 #define PF_NETROM 6 /* Amateur radio NetROM. */
72 #define PF_BRIDGE 7 /* Multiprotocol bridge. */
73 #define PF_ATMPVC 8 /* ATM PVCs. */
74 #define PF_X25 9 /* Reserved for X.25 project. */
75 #define PF_INET6 10 /* IP version 6. */
76 #define PF_ROSE 11 /* Amateur Radio X.25 PLP. */
77 #define PF_DECnet 12 /* Reserved for DECnet project. */
78 #define PF_NETBEUI 13 /* Reserved for 802.2LLC project. */
79 #define PF_SECURITY 14 /* Security callback pseudo AF. */
80 #define PF_KEY 15 /* PF_KEY key management API. */
82 #define PF_ROUTE PF_NETLINK /* Alias to emulate 4.4BSD. */
83 #define PF_PACKET 17 /* Packet family. */
84 #define PF_ASH 18 /* Ash. */
85 #define PF_ECONET 19 /* Acorn Econet. */
86 #define PF_ATMSVC 20 /* ATM SVCs. */
87 #define PF_SNA 22 /* Linux SNA Project */
88 #define PF_IRDA 23 /* IRDA sockets. */
89 #define PF_PPPOX 24 /* PPPoX sockets. */
90 #define PF_WANPIPE 25 /* Wanpipe API sockets. */
91 #define PF_BLUETOOTH 31 /* Bluetooth sockets. */
92 #define PF_MAX 32 /* For now.. */
94 /* Address families. */
95 #define AF_UNSPEC PF_UNSPEC
96 #define AF_LOCAL PF_LOCAL
97 #define AF_UNIX PF_UNIX
98 #define AF_FILE PF_FILE
99 #define AF_INET PF_INET
100 #define AF_AX25 PF_AX25
101 #define AF_IPX PF_IPX
102 #define AF_APPLETALK PF_APPLETALK
103 #define AF_NETROM PF_NETROM
104 #define AF_BRIDGE PF_BRIDGE
105 #define AF_ATMPVC PF_ATMPVC
106 #define AF_X25 PF_X25
107 #define AF_INET6 PF_INET6
108 #define AF_ROSE PF_ROSE
109 #define AF_DECnet PF_DECnet
110 #define AF_NETBEUI PF_NETBEUI
111 #define AF_SECURITY PF_SECURITY
112 #define AF_KEY PF_KEY
113 #define AF_NETLINK PF_NETLINK
114 #define AF_ROUTE PF_ROUTE
115 #define AF_PACKET PF_PACKET
116 #define AF_ASH PF_ASH
117 #define AF_ECONET PF_ECONET
118 #define AF_ATMSVC PF_ATMSVC
119 #define AF_SNA PF_SNA
120 #define AF_IRDA PF_IRDA
121 #define AF_PPPOX PF_PPPOX
122 #define AF_WANPIPE PF_WANPIPE
123 #define AF_BLUETOOTH PF_BLUETOOTH
124 #define AF_MAX PF_MAX
126 /* Socket level values. Others are defined in the appropriate headers.
128 XXX These definitions also should go into the appropriate headers as
129 far as they are available. */
131 #define SOL_DECNET 261
133 #define SOL_PACKET 263
134 #define SOL_ATM 264 /* ATM layer (cell level). */
135 #define SOL_AAL 265 /* ATM Adaption Layer (packet level). */
138 /* Maximum queue length specifiable by listen. */
139 #define SOMAXCONN 128
141 /* Get the definition of the macro to define the common sockaddr members. */
142 #include <bits/sockaddr.h>
144 /* Structure describing a generic socket address. */
147 __SOCKADDR_COMMON (sa_); /* Common data: address family and length. */
148 char sa_data[14]; /* Address data. */
152 /* Structure large enough to hold any socket address (with the historical
153 exception of AF_UNIX). We reserve 128 bytes. */
154 #if ULONG_MAX > 0xffffffff
155 # define __ss_aligntype __uint64_t
157 # define __ss_aligntype __uint32_t
160 #define _SS_PADSIZE (_SS_SIZE - (2 * sizeof (__ss_aligntype)))
162 struct sockaddr_storage
164 __SOCKADDR_COMMON (ss_); /* Address family, etc. */
165 __ss_aligntype __ss_align; /* Force desired alignment. */
166 char __ss_padding[_SS_PADSIZE];
170 /* Bits in the FLAGS argument to `send', `recv', et al. */
173 MSG_OOB = 0x01, /* Process out-of-band data. */
174 #define MSG_OOB MSG_OOB
175 MSG_PEEK = 0x02, /* Peek at incoming messages. */
176 #define MSG_PEEK MSG_PEEK
177 MSG_DONTROUTE = 0x04, /* Don't use local routing. */
178 #define MSG_DONTROUTE MSG_DONTROUTE
180 /* DECnet uses a different name. */
181 MSG_TRYHARD = MSG_DONTROUTE,
182 # define MSG_TRYHARD MSG_DONTROUTE
184 MSG_CTRUNC = 0x08, /* Control data lost before delivery. */
185 #define MSG_CTRUNC MSG_CTRUNC
186 MSG_PROXY = 0x10, /* Supply or ask second address. */
187 #define MSG_PROXY MSG_PROXY
189 #define MSG_TRUNC MSG_TRUNC
190 MSG_DONTWAIT = 0x40, /* Nonblocking IO. */
191 #define MSG_DONTWAIT MSG_DONTWAIT
192 MSG_EOR = 0x80, /* End of record. */
193 #define MSG_EOR MSG_EOR
194 MSG_WAITALL = 0x100, /* Wait for a full request. */
195 #define MSG_WAITALL MSG_WAITALL
197 #define MSG_FIN MSG_FIN
199 #define MSG_SYN MSG_SYN
200 MSG_CONFIRM = 0x800, /* Confirm path validity. */
201 #define MSG_CONFIRM MSG_CONFIRM
203 #define MSG_RST MSG_RST
204 MSG_ERRQUEUE = 0x2000, /* Fetch message from error queue. */
205 #define MSG_ERRQUEUE MSG_ERRQUEUE
206 MSG_NOSIGNAL = 0x4000, /* Do not generate SIGPIPE. */
207 #define MSG_NOSIGNAL MSG_NOSIGNAL
208 MSG_MORE = 0x8000 /* Sender will send more. */
209 #define MSG_MORE MSG_MORE
213 /* Structure describing messages sent by
214 `sendmsg' and received by `recvmsg'. */
215 /* Note: do not change these members to match glibc; these match the
216 SuSv3 spec already (e.g. msg_iovlen/msg_controllen).
217 http://www.opengroup.org/onlinepubs/009695399/basedefs/sys/socket.h.html */
218 /* Note: linux kernel uses __kernel_size_t (which is 8bytes on 64bit
219 platforms, and 4bytes on 32bit platforms) for msg_iovlen/msg_controllen */
222 void *msg_name; /* Address to send to/receive from. */
223 socklen_t msg_namelen; /* Length of address data. */
225 struct iovec *msg_iov; /* Vector of data to send/receive into. */
227 int msg_iovlen; /* Number of elements in the vector. */
229 size_t msg_iovlen; /* Number of elements in the vector. */
232 void *msg_control; /* Ancillary data (eg BSD filedesc passing). */
234 socklen_t msg_controllen; /* Ancillary data buffer length. */
236 size_t msg_controllen; /* Ancillary data buffer length. */
239 int msg_flags; /* Flags on received message. */
242 /* Structure used for storage of ancillary data object information. */
245 size_t cmsg_len; /* Length of data in cmsg_data plus length
246 of cmsghdr structure. */
247 int cmsg_level; /* Originating protocol. */
248 int cmsg_type; /* Protocol specific type. */
249 #if (!defined __STRICT_ANSI__ && __GNUC__ >= 2) || __STDC_VERSION__ >= 199901L
250 __extension__ unsigned char __cmsg_data __flexarr; /* Ancillary data. */
254 /* Ancillary data object manipulation macros. */
255 #if (!defined __STRICT_ANSI__ && __GNUC__ >= 2) || __STDC_VERSION__ >= 199901L
256 # define CMSG_DATA(cmsg) ((cmsg)->__cmsg_data)
258 # define CMSG_DATA(cmsg) ((unsigned char *) ((struct cmsghdr *) (cmsg) + 1))
260 #define CMSG_NXTHDR(mhdr, cmsg) __cmsg_nxthdr (mhdr, cmsg)
261 #define CMSG_FIRSTHDR(mhdr) \
262 ((size_t) (mhdr)->msg_controllen >= sizeof (struct cmsghdr) \
263 ? (struct cmsghdr *) (mhdr)->msg_control : (struct cmsghdr *) NULL)
264 #define CMSG_ALIGN(len) (((len) + sizeof (size_t) - 1) \
265 & (size_t) ~(sizeof (size_t) - 1))
266 #define CMSG_SPACE(len) (CMSG_ALIGN (len) \
267 + CMSG_ALIGN (sizeof (struct cmsghdr)))
268 #define CMSG_LEN(len) (CMSG_ALIGN (sizeof (struct cmsghdr)) + (len))
270 extern struct cmsghdr *__cmsg_nxthdr (struct msghdr *__mhdr,
271 struct cmsghdr *__cmsg) __THROW;
272 libc_hidden_proto(__cmsg_nxthdr)
273 #ifdef __USE_EXTERN_INLINES
274 # ifndef _EXTERN_INLINE
275 # define _EXTERN_INLINE extern __inline
277 _EXTERN_INLINE struct cmsghdr *
278 __NTH (__cmsg_nxthdr (struct msghdr *__mhdr, struct cmsghdr *__cmsg))
280 if ((size_t) __cmsg->cmsg_len < sizeof (struct cmsghdr))
281 /* The kernel header does this so there may be a reason. */
284 __cmsg = (struct cmsghdr *) ((unsigned char *) __cmsg
285 + CMSG_ALIGN (__cmsg->cmsg_len));
286 if ((unsigned char *) (__cmsg + 1) > ((unsigned char *) __mhdr->msg_control
287 + __mhdr->msg_controllen)
288 || ((unsigned char *) __cmsg + CMSG_ALIGN (__cmsg->cmsg_len)
289 > ((unsigned char *) __mhdr->msg_control + __mhdr->msg_controllen)))
290 /* No more entries. */
294 #endif /* Use `extern inline'. */
296 /* Socket level message types. This must match the definitions in
300 SCM_RIGHTS = 0x01 /* Transfer file descriptors. */
301 #define SCM_RIGHTS SCM_RIGHTS
303 , SCM_CREDENTIALS = 0x02 /* Credentials passing. */
304 # define SCM_CREDENTIALS SCM_CREDENTIALS
308 /* User visible structure for SCM_CREDENTIALS message */
312 pid_t pid; /* PID of sending process. */
313 uid_t uid; /* UID of sending process. */
314 gid_t gid; /* GID of sending process. */
317 /* Get socket manipulation related informations from kernel headers. */
320 #include <asm/socket.h>
323 #include <asm/socket.h>
327 /* Structure used to manipulate the SO_LINGER option. */
330 int l_onoff; /* Nonzero to linger on close. */
331 int l_linger; /* Time to linger. */
334 /* Prefer socketcall over all these for sparc32,
335 since it only has socketcall */
340 #undef __NR_getpeername
341 #undef __NR_getsockname
342 #undef __NR_getsockopt
350 #undef __NR_setsockopt
353 #undef __NR_socketpair
356 #endif /* bits/socket.h */