1 /* System-specific socket constants and types. Linux/MIPS version.
2 Copyright (C) 1991, 92, 1994-1999, 2000, 2001, 2004, 2005, 2006
3 Free Software Foundation, Inc.
4 This file is part of the GNU C Library.
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2.1 of the License, or (at your option) any later version.
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public
17 License along with the GNU C Library; if not, write to the Free
18 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
21 #ifndef __BITS_SOCKET_H
22 #define __BITS_SOCKET_H
24 #if !defined _SYS_SOCKET_H && !defined _NETINET_IN_H
25 # error "Never include <bits/socket.h> directly; use <sys/socket.h> instead."
33 #include <sys/types.h>
35 /* Type for length arguments in socket calls. */
36 #ifndef __socklen_t_defined
37 typedef __socklen_t socklen_t;
38 # define __socklen_t_defined
41 /* Types of sockets. */
44 SOCK_DGRAM = 1, /* Connectionless, unreliable datagrams
45 of fixed maximum length. */
46 #define SOCK_DGRAM SOCK_DGRAM
47 SOCK_STREAM = 2, /* Sequenced, reliable, connection-based
49 #define SOCK_STREAM SOCK_STREAM
50 SOCK_RAW = 3, /* Raw protocol interface. */
51 #define SOCK_RAW SOCK_RAW
52 SOCK_RDM = 4, /* Reliably-delivered messages. */
53 #define SOCK_RDM SOCK_RDM
54 SOCK_SEQPACKET = 5, /* Sequenced, reliable, connection-based,
55 datagrams of fixed maximum length. */
56 #define SOCK_SEQPACKET SOCK_SEQPACKET
58 #define SOCK_DCCP SOCK_DCCP /* Datagram Congestion Control Protocol. */
59 SOCK_PACKET = 10, /* Linux specific way of getting packets
60 at the dev level. For writing rarp and
61 other similar things on the user level. */
62 #define SOCK_PACKET SOCK_PACKET
63 /* Flags to be ORed into the type parameter of socket and socketpair and
64 used for the flags parameter of paccept. */
66 SOCK_CLOEXEC = 02000000, /* Atomically set close-on-exec flag for the
68 #define SOCK_CLOEXEC SOCK_CLOEXEC
69 SOCK_NONBLOCK = 0200 /* Atomically mark descriptor(s) as
71 #define SOCK_NONBLOCK SOCK_NONBLOCK
74 /* Protocol families. */
75 #define PF_UNSPEC 0 /* Unspecified. */
76 #define PF_LOCAL 1 /* Local to host (pipes and file-domain). */
77 #define PF_UNIX PF_LOCAL /* Old BSD name for PF_LOCAL. */
78 #define PF_FILE PF_LOCAL /* Another non-standard name for PF_LOCAL. */
79 #define PF_INET 2 /* IP protocol family. */
80 #define PF_AX25 3 /* Amateur Radio AX.25. */
81 #define PF_IPX 4 /* Novell Internet Protocol. */
82 #define PF_APPLETALK 5 /* Appletalk DDP. */
83 #define PF_NETROM 6 /* Amateur radio NetROM. */
84 #define PF_BRIDGE 7 /* Multiprotocol bridge. */
85 #define PF_ATMPVC 8 /* ATM PVCs. */
86 #define PF_X25 9 /* Reserved for X.25 project. */
87 #define PF_INET6 10 /* IP version 6. */
88 #define PF_ROSE 11 /* Amateur Radio X.25 PLP. */
89 #define PF_DECnet 12 /* Reserved for DECnet project. */
90 #define PF_NETBEUI 13 /* Reserved for 802.2LLC project. */
91 #define PF_SECURITY 14 /* Security callback pseudo AF. */
92 #define PF_KEY 15 /* PF_KEY key management API. */
94 #define PF_ROUTE PF_NETLINK /* Alias to emulate 4.4BSD. */
95 #define PF_PACKET 17 /* Packet family. */
96 #define PF_ASH 18 /* Ash. */
97 #define PF_ECONET 19 /* Acorn Econet. */
98 #define PF_ATMSVC 20 /* ATM SVCs. */
99 #define PF_SNA 22 /* Linux SNA Project */
100 #define PF_IRDA 23 /* IRDA sockets. */
101 #define PF_PPPOX 24 /* PPPoX sockets. */
102 #define PF_WANPIPE 25 /* Wanpipe API sockets. */
103 #define PF_BLUETOOTH 31 /* Bluetooth sockets. */
104 #define PF_MAX 32 /* For now.. */
106 /* Address families. */
107 #define AF_UNSPEC PF_UNSPEC
108 #define AF_LOCAL PF_LOCAL
109 #define AF_UNIX PF_UNIX
110 #define AF_FILE PF_FILE
111 #define AF_INET PF_INET
112 #define AF_AX25 PF_AX25
113 #define AF_IPX PF_IPX
114 #define AF_APPLETALK PF_APPLETALK
115 #define AF_NETROM PF_NETROM
116 #define AF_BRIDGE PF_BRIDGE
117 #define AF_ATMPVC PF_ATMPVC
118 #define AF_X25 PF_X25
119 #define AF_INET6 PF_INET6
120 #define AF_ROSE PF_ROSE
121 #define AF_DECnet PF_DECnet
122 #define AF_NETBEUI PF_NETBEUI
123 #define AF_SECURITY PF_SECURITY
124 #define AF_KEY PF_KEY
125 #define AF_NETLINK PF_NETLINK
126 #define AF_ROUTE PF_ROUTE
127 #define AF_PACKET PF_PACKET
128 #define AF_ASH PF_ASH
129 #define AF_ECONET PF_ECONET
130 #define AF_ATMSVC PF_ATMSVC
131 #define AF_SNA PF_SNA
132 #define AF_IRDA PF_IRDA
133 #define AF_PPPOX PF_PPPOX
134 #define AF_WANPIPE PF_WANPIPE
135 #define AF_BLUETOOTH PF_BLUETOOTH
136 #define AF_MAX PF_MAX
138 /* Socket level values. Others are defined in the appropriate headers.
140 XXX These definitions also should go into the appropriate headers as
141 far as they are available. */
143 #define SOL_DECNET 261
145 #define SOL_PACKET 263
146 #define SOL_ATM 264 /* ATM layer (cell level). */
147 #define SOL_AAL 265 /* ATM Adaption Layer (packet level). */
150 /* Maximum queue length specifiable by listen. */
151 #define SOMAXCONN 128
153 /* Get the definition of the macro to define the common sockaddr members. */
154 #include <bits/sockaddr.h>
156 /* Structure describing a generic socket address. */
159 __SOCKADDR_COMMON (sa_); /* Common data: address family and length. */
160 char sa_data[14]; /* Address data. */
164 /* Structure large enough to hold any socket address (with the historical
165 exception of AF_UNIX). We reserve 128 bytes. */
166 #define __ss_aligntype unsigned long int
168 #define _SS_PADSIZE (_SS_SIZE - (2 * sizeof (__ss_aligntype)))
170 struct sockaddr_storage
172 __SOCKADDR_COMMON (ss_); /* Address family, etc. */
173 __ss_aligntype __ss_align; /* Force desired alignment. */
174 char __ss_padding[_SS_PADSIZE];
178 /* Bits in the FLAGS argument to `send', `recv', et al. */
181 MSG_OOB = 0x01, /* Process out-of-band data. */
182 #define MSG_OOB MSG_OOB
183 MSG_PEEK = 0x02, /* Peek at incoming messages. */
184 #define MSG_PEEK MSG_PEEK
185 MSG_DONTROUTE = 0x04, /* Don't use local routing. */
186 #define MSG_DONTROUTE MSG_DONTROUTE
188 /* DECnet uses a different name. */
189 MSG_TRYHARD = MSG_DONTROUTE,
190 # define MSG_TRYHARD MSG_DONTROUTE
192 MSG_CTRUNC = 0x08, /* Control data lost before delivery. */
193 #define MSG_CTRUNC MSG_CTRUNC
194 MSG_PROXY = 0x10, /* Supply or ask second address. */
195 #define MSG_PROXY MSG_PROXY
197 #define MSG_TRUNC MSG_TRUNC
198 MSG_DONTWAIT = 0x40, /* Nonblocking IO. */
199 #define MSG_DONTWAIT MSG_DONTWAIT
200 MSG_EOR = 0x80, /* End of record. */
201 #define MSG_EOR MSG_EOR
202 MSG_WAITALL = 0x100, /* Wait for a full request. */
203 #define MSG_WAITALL MSG_WAITALL
205 #define MSG_FIN MSG_FIN
207 #define MSG_SYN MSG_SYN
208 MSG_CONFIRM = 0x800, /* Confirm path validity. */
209 #define MSG_CONFIRM MSG_CONFIRM
211 #define MSG_RST MSG_RST
212 MSG_ERRQUEUE = 0x2000, /* Fetch message from error queue. */
213 #define MSG_ERRQUEUE MSG_ERRQUEUE
214 MSG_NOSIGNAL = 0x4000, /* Do not generate SIGPIPE. */
215 #define MSG_NOSIGNAL MSG_NOSIGNAL
216 MSG_MORE = 0x8000, /* Sender will send more. */
217 #define MSG_MORE MSG_MORE
218 MSG_WAITFORONE = 0x10000, /* Wait for at least one packet to return.*/
219 #define MSG_WAITFORONE MSG_WAITFORONE
221 MSG_CMSG_CLOEXEC = 0x40000000 /* Set close_on_exit for file
222 descriptor received through
224 #define MSG_CMSG_CLOEXEC MSG_CMSG_CLOEXEC
228 /* Structure describing messages sent by
229 `sendmsg' and received by `recvmsg'. */
230 /* Note: do not change these members to match glibc; these match the
231 SuSv3 spec already (e.g. msg_iovlen/msg_controllen).
232 http://www.opengroup.org/onlinepubs/009695399/basedefs/sys/socket.h.html */
233 /* Note: linux kernel uses __kernel_size_t (which is 8bytes on 64bit
234 platforms, and 4bytes on 32bit platforms) for msg_iovlen/msg_controllen */
237 void *msg_name; /* Address to send to/receive from. */
238 socklen_t msg_namelen; /* Length of address data. */
240 struct iovec *msg_iov; /* Vector of data to send/receive into. */
242 int msg_iovlen; /* Number of elements in the vector. */
244 size_t msg_iovlen; /* Number of elements in the vector. */
247 void *msg_control; /* Ancillary data (eg BSD filedesc passing). */
249 socklen_t msg_controllen; /* Ancillary data buffer length. */
251 size_t msg_controllen; /* Ancillary data buffer length. */
254 int msg_flags; /* Flags on received message. */
257 /* Structure used for storage of ancillary data object information. */
260 size_t cmsg_len; /* Length of data in cmsg_data plus length
261 of cmsghdr structure. */
262 int cmsg_level; /* Originating protocol. */
263 int cmsg_type; /* Protocol specific type. */
264 #if (!defined __STRICT_ANSI__ && __GNUC__ >= 2) || __STDC_VERSION__ >= 199901L
265 __extension__ unsigned char __cmsg_data __flexarr; /* Ancillary data. */
269 /* Ancillary data object manipulation macros. */
270 #if (!defined __STRICT_ANSI__ && __GNUC__ >= 2) || __STDC_VERSION__ >= 199901L
271 # define CMSG_DATA(cmsg) ((cmsg)->__cmsg_data)
273 # define CMSG_DATA(cmsg) ((unsigned char *) ((struct cmsghdr *) (cmsg) + 1))
275 #define CMSG_NXTHDR(mhdr, cmsg) __cmsg_nxthdr (mhdr, cmsg)
276 #define CMSG_FIRSTHDR(mhdr) \
277 ((size_t) (mhdr)->msg_controllen >= sizeof (struct cmsghdr) \
278 ? (struct cmsghdr *) (mhdr)->msg_control : (struct cmsghdr *) NULL)
279 #define CMSG_ALIGN(len) (((len) + sizeof (size_t) - 1) \
280 & (size_t) ~(sizeof (size_t) - 1))
281 #define CMSG_SPACE(len) (CMSG_ALIGN (len) \
282 + CMSG_ALIGN (sizeof (struct cmsghdr)))
283 #define CMSG_LEN(len) (CMSG_ALIGN (sizeof (struct cmsghdr)) + (len))
285 extern struct cmsghdr *__cmsg_nxthdr (struct msghdr *__mhdr,
286 struct cmsghdr *__cmsg) __THROW;
287 libc_hidden_proto(__cmsg_nxthdr)
288 #ifdef __USE_EXTERN_INLINES
289 # ifndef _EXTERN_INLINE
290 # define _EXTERN_INLINE extern __inline
292 _EXTERN_INLINE struct cmsghdr *
293 __NTH (__cmsg_nxthdr (struct msghdr *__mhdr, struct cmsghdr *__cmsg))
295 if ((size_t) __cmsg->cmsg_len < sizeof (struct cmsghdr))
296 /* The kernel header does this so there may be a reason. */
299 __cmsg = (struct cmsghdr *) ((unsigned char *) __cmsg
300 + CMSG_ALIGN (__cmsg->cmsg_len));
301 if ((unsigned char *) (__cmsg + 1) > ((unsigned char *) __mhdr->msg_control
302 + __mhdr->msg_controllen)
303 || ((unsigned char *) __cmsg + CMSG_ALIGN (__cmsg->cmsg_len)
304 > ((unsigned char *) __mhdr->msg_control + __mhdr->msg_controllen)))
305 /* No more entries. */
309 #endif /* Use `extern inline'. */
311 /* Socket level message types. This must match the definitions in
315 SCM_RIGHTS = 0x01 /* Transfer file descriptors. */
316 #define SCM_RIGHTS SCM_RIGHTS
318 , SCM_CREDENTIALS = 0x02 /* Credentials passing. */
319 # define SCM_CREDENTIALS SCM_CREDENTIALS
323 /* User visible structure for SCM_CREDENTIALS message */
327 pid_t pid; /* PID of sending process. */
328 uid_t uid; /* UID of sending process. */
329 gid_t gid; /* GID of sending process. */
332 /* Get socket manipulation related informations from kernel headers. */
335 #include <asm/socket.h>
338 #include <asm/socket.h>
342 /* Structure used to manipulate the SO_LINGER option. */
345 int l_onoff; /* Nonzero to linger on close. */
346 int l_linger; /* Time to linger. */
349 #endif /* bits/socket.h */