1 /* System-specific socket constants and types. Linux/s390 version.
2 Copyright (C) 2001 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 Library General Public License as
7 published by the Free Software Foundation; either version 2 of the
8 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 Library General Public License for more details.
15 You should have received a copy of the GNU Library General Public
16 License along with the GNU C Library; see the file COPYING.LIB. If not,
17 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 Boston, MA 02111-1307, USA. */
20 #ifndef __BITS_SOCKET_H
21 #define __BITS_SOCKET_H 1
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_MAX 32 /* For now.. */
92 /* Address families. */
93 #define AF_UNSPEC PF_UNSPEC
94 #define AF_LOCAL PF_LOCAL
95 #define AF_UNIX PF_UNIX
96 #define AF_FILE PF_FILE
97 #define AF_INET PF_INET
98 #define AF_AX25 PF_AX25
100 #define AF_APPLETALK PF_APPLETALK
101 #define AF_NETROM PF_NETROM
102 #define AF_BRIDGE PF_BRIDGE
103 #define AF_ATMPVC PF_ATMPVC
104 #define AF_X25 PF_X25
105 #define AF_INET6 PF_INET6
106 #define AF_ROSE PF_ROSE
107 #define AF_DECnet PF_DECnet
108 #define AF_NETBEUI PF_NETBEUI
109 #define AF_SECURITY PF_SECURITY
110 #define AF_KEY PF_KEY
111 #define AF_NETLINK PF_NETLINK
112 #define AF_ROUTE PF_ROUTE
113 #define AF_PACKET PF_PACKET
114 #define AF_ASH PF_ASH
115 #define AF_ECONET PF_ECONET
116 #define AF_ATMSVC PF_ATMSVC
117 #define AF_SNA PF_SNA
118 #define AF_IRDA PF_IRDA
119 #define AF_PPPOX PF_PPPOX
120 #define AF_MAX PF_MAX
122 /* Socket level values. Others are defined in the appropriate headers.
124 XXX These definitions also should go into the appropriate headers as
125 far as they are available. */
127 #define SOL_DECNET 261
129 #define SOL_PACKET 263
130 #define SOL_ATM 264 /* ATM layer (cell level). */
131 #define SOL_AAL 265 /* ATM Adaption Layer (packet level). */
134 /* Maximum queue length specifiable by listen. */
135 #define SOMAXCONN 128
137 /* Get the definition of the macro to define the common sockaddr members. */
138 #include <bits/sockaddr.h>
140 /* Structure describing a generic socket address. */
143 __SOCKADDR_COMMON (sa_
); /* Common data: address family and length. */
144 char sa_data
[14]; /* Address data. */
148 /* Structure large enough to hold any socket address (with the historical
149 exception of AF_UNIX). We reserve 128 bytes. */
150 #if ULONG_MAX > 0xffffffff
151 # define __ss_aligntype __uint64_t
153 # define __ss_aligntype __uint32_t
156 #define _SS_PADSIZE (_SS_SIZE - (2 * sizeof (__ss_aligntype)))
158 struct sockaddr_storage
160 __SOCKADDR_COMMON (ss_
); /* Address family, etc. */
161 __ss_aligntype __ss_align
; /* Force desired alignment. */
162 char __ss_padding
[_SS_PADSIZE
];
166 /* Bits in the FLAGS argument to `send', `recv', et al. */
169 MSG_OOB
= 0x01, /* Process out-of-band data. */
170 #define MSG_OOB MSG_OOB
171 MSG_PEEK
= 0x02, /* Peek at incoming messages. */
172 #define MSG_PEEK MSG_PEEK
173 MSG_DONTROUTE
= 0x04, /* Don't use local routing. */
174 #define MSG_DONTROUTE MSG_DONTROUTE
176 /* DECnet uses a different name. */
177 MSG_TRYHARD
= MSG_DONTROUTE
,
178 # define MSG_TRYHARD MSG_DONTROUTE
180 MSG_CTRUNC
= 0x08, /* Control data lost before delivery. */
181 #define MSG_CTRUNC MSG_CTRUNC
182 MSG_PROXY
= 0x10, /* Supply or ask second address. */
183 #define MSG_PROXY MSG_PROXY
185 #define MSG_TRUNC MSG_TRUNC
186 MSG_DONTWAIT
= 0x40, /* Nonblocking IO. */
187 #define MSG_DONTWAIT MSG_DONTWAIT
188 MSG_EOR
= 0x80, /* End of record. */
189 #define MSG_EOR MSG_EOR
190 MSG_WAITALL
= 0x100, /* Wait for a full request. */
191 #define MSG_WAITALL MSG_WAITALL
193 #define MSG_FIN MSG_FIN
195 #define MSG_SYN MSG_SYN
196 MSG_CONFIRM
= 0x800, /* Confirm path validity. */
197 #define MSG_CONFIRM MSG_CONFIRM
199 #define MSG_RST MSG_RST
200 MSG_ERRQUEUE
= 0x2000, /* Fetch message from error queue. */
201 #define MSG_ERRQUEUE MSG_ERRQUEUE
202 MSG_NOSIGNAL
= 0x4000 /* Do not generate SIGPIPE. */
203 #define MSG_NOSIGNAL MSG_NOSIGNAL
207 /* Structure describing messages sent by
208 `sendmsg' and received by `recvmsg'. */
211 void *msg_name
; /* Address to send to/receive from. */
212 socklen_t msg_namelen
; /* Length of address data. */
214 struct iovec
*msg_iov
; /* Vector of data to send/receive into. */
215 size_t msg_iovlen
; /* Number of elements in the vector. */
217 void *msg_control
; /* Ancillary data (eg BSD filedesc passing). */
218 size_t msg_controllen
; /* Ancillary data buffer length. */
220 int msg_flags
; /* Flags on received message. */
223 /* Structure used for storage of ancillary data object information. */
226 size_t cmsg_len
; /* Length of data in cmsg_data plus length
227 of cmsghdr structure. */
228 int cmsg_level
; /* Originating protocol. */
229 int cmsg_type
; /* Protocol specific type. */
230 __extension__
unsigned char __cmsg_data __flexarr
; /* Ancillary data. */
231 /* XXX Perhaps this should be removed. */
234 /* Ancillary data object manipulation macros. */
235 #if !defined __STRICT_ANSI__ && defined __GNUC__ && __GNUC__ >= 2
236 # define CMSG_DATA(cmsg) ((cmsg)->__cmsg_data)
238 # define CMSG_DATA(cmsg) ((unsigned char *) ((struct cmsghdr *) (cmsg) + 1))
240 #define CMSG_NXTHDR(mhdr, cmsg) __cmsg_nxthdr (mhdr, cmsg)
241 #define CMSG_FIRSTHDR(mhdr) \
242 ((size_t) (mhdr)->msg_controllen >= sizeof (struct cmsghdr) \
243 ? (struct cmsghdr *) (mhdr)->msg_control : (struct cmsghdr *) NULL)
244 #define CMSG_ALIGN(len) (((len) + sizeof (size_t) - 1) \
245 & (size_t) ~(sizeof (size_t) - 1))
246 #define CMSG_SPACE(len) (CMSG_ALIGN (len) \
247 + CMSG_ALIGN (sizeof (struct cmsghdr)))
248 #define CMSG_LEN(len) (CMSG_ALIGN (sizeof (struct cmsghdr)) + (len))
250 extern struct cmsghdr
*__cmsg_nxthdr (struct msghdr
*__mhdr
,
251 struct cmsghdr
*__cmsg
) __THROW
;
252 #ifdef __USE_EXTERN_INLINES
253 # ifndef _EXTERN_INLINE
254 # define _EXTERN_INLINE extern __inline
256 _EXTERN_INLINE
struct cmsghdr
*
257 __cmsg_nxthdr (struct msghdr
*__mhdr
, struct cmsghdr
*__cmsg
) __THROW
259 if ((size_t) __cmsg
->cmsg_len
< sizeof (struct cmsghdr
))
260 /* The kernel header does this so there may be a reason. */
263 __cmsg
= (struct cmsghdr
*) ((unsigned char *) __cmsg
264 + CMSG_ALIGN (__cmsg
->cmsg_len
));
265 if ((unsigned char *) (__cmsg
+ 1) >= ((unsigned char *) __mhdr
->msg_control
266 + __mhdr
->msg_controllen
)
267 || ((unsigned char *) __cmsg
+ CMSG_ALIGN (__cmsg
->cmsg_len
)
268 > ((unsigned char *) __mhdr
->msg_control
+ __mhdr
->msg_controllen
)))
269 /* No more entries. */
273 #endif /* Use `extern inline'. */
275 /* Socket level message types. This must match the definitions in
279 SCM_RIGHTS
= 0x01, /* Transfer file descriptors. */
280 #define SCM_RIGHTS SCM_RIGHTS
282 SCM_CREDENTIALS
= 0x02, /* Credentials passing. */
283 # define SCM_CREDENTIALS SCM_CREDENTIALS
285 __SCM_CONNECT
= 0x03 /* Data array is `struct scm_connect'. */
288 /* User visible structure for SCM_CREDENTIALS message */
292 pid_t pid
; /* PID of sending process. */
293 uid_t uid
; /* UID of sending process. */
294 gid_t gid
; /* GID of sending process. */
297 /* Get socket manipulation related informations from kernel headers. */
298 #include <asm/socket.h>
301 /* Structure used to manipulate the SO_LINGER option. */
304 int l_onoff
; /* Nonzero to linger on close. */
305 int l_linger
; /* Time to linger. */
308 #endif /* bits/socket.h */