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6d4752d8 | 1 | /* System-specific socket constants and types. Linux/MIPS version. |
4618c1f7 | 2 | Copyright (C) 1991,92,94,95,96,97,98,99,2000 Free Software Foundation, Inc. |
f21acc89 UD |
3 | This file is part of the GNU C Library. |
4 | ||
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. | |
9 | ||
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. | |
14 | ||
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. */ | |
19 | ||
6d4752d8 UD |
20 | #ifndef __BITS_SOCKET_H |
21 | #define __BITS_SOCKET_H | |
22 | ||
23 | #if !defined _SYS_SOCKET_H && !defined _NETINET_IN_H | |
f4017d20 | 24 | # error "Never include <bits/socket.h> directly; use <sys/socket.h> instead." |
f21acc89 UD |
25 | #endif |
26 | ||
f21acc89 UD |
27 | #define __need_size_t |
28 | #define __need_NULL | |
29 | #include <stddef.h> | |
30 | ||
12b5b6b7 | 31 | #include <limits.h> |
6d4752d8 UD |
32 | #include <sys/types.h> |
33 | ||
55c14926 | 34 | /* Type for length arguments in socket calls. */ |
750f9af6 UD |
35 | #ifndef __socklen_t_defined |
36 | typedef __socklen_t socklen_t; | |
37 | # define __socklen_t_defined | |
38 | #endif | |
55c14926 | 39 | |
6d4752d8 UD |
40 | /* Types of sockets. */ |
41 | enum __socket_type | |
42 | { | |
43 | SOCK_DGRAM = 1, /* Connectionless, unreliable datagrams | |
44 | of fixed maximum length. */ | |
45 | #define SOCK_DGRAM SOCK_DGRAM | |
46 | SOCK_STREAM = 2, /* Sequenced, reliable, connection-based | |
47 | byte streams. */ | |
48 | #define SOCK_STREAM SOCK_STREAM | |
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 | |
60 | }; | |
61 | ||
62 | /* Protocol families. */ | |
63 | #define PF_UNSPEC 0 /* Unspecified. */ | |
7559b943 UD |
64 | #define PF_LOCAL 1 /* Local to host (pipes and file-domain). */ |
65 | #define PF_UNIX PF_LOCAL /* Old BSD name for PF_LOCAL. */ | |
6d4752d8 | 66 | #define PF_FILE PF_LOCAL /* Another non-standard name for PF_LOCAL. */ |
7559b943 UD |
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. */ | |
6d4752d8 | 70 | #define PF_APPLETALK 5 /* Appletalk DDP. */ |
7559b943 UD |
71 | #define PF_NETROM 6 /* Amateur radio NetROM. */ |
72 | #define PF_BRIDGE 7 /* Multiprotocol bridge. */ | |
6d4752d8 | 73 | #define PF_ATMPVC 8 /* ATM PVCs. */ |
7559b943 UD |
74 | #define PF_X25 9 /* Reserved for X.25 project. */ |
75 | #define PF_INET6 10 /* IP version 6. */ | |
6d4752d8 UD |
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. */ | |
7559b943 | 81 | #define PF_NETLINK 16 |
6d4752d8 UD |
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 */ | |
99356b9b AJ |
88 | #define PF_IRDA 23 /* IRDA sockets. */ |
89 | #define PF_PPPOX 24 /* PPPoX sockets. */ | |
6d4752d8 UD |
90 | #define PF_MAX 32 /* For now.. */ |
91 | ||
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 | |
99 | #define AF_IPX PF_IPX | |
100 | #define AF_APPLETALK PF_APPLETALK | |
f21acc89 | 101 | #define AF_NETROM PF_NETROM |
6d4752d8 UD |
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 | |
7559b943 | 109 | #define AF_SECURITY PF_SECURITY |
d01d6319 | 110 | #define AF_KEY PF_KEY |
7559b943 UD |
111 | #define AF_NETLINK PF_NETLINK |
112 | #define AF_ROUTE PF_ROUTE | |
113 | #define AF_PACKET PF_PACKET | |
114 | #define AF_ASH PF_ASH | |
6d4752d8 UD |
115 | #define AF_ECONET PF_ECONET |
116 | #define AF_ATMSVC PF_ATMSVC | |
117 | #define AF_SNA PF_SNA | |
99356b9b AJ |
118 | #define AF_IRDA PF_IRDA |
119 | #define AF_PPPOX PF_PPPOX | |
6d4752d8 | 120 | #define AF_MAX PF_MAX |
f21acc89 | 121 | |
7559b943 UD |
122 | /* Socket level values. Others are defined in the appropriate headers. |
123 | ||
124 | XXX These definitions also should go into the appropriate headers as | |
125 | far as they are available. */ | |
f21acc89 | 126 | #define SOL_RAW 255 |
7559b943 UD |
127 | #define SOL_DECNET 261 |
128 | #define SOL_X25 262 | |
d01d6319 UD |
129 | #define SOL_PACKET 263 |
130 | #define SOL_ATM 264 /* ATM layer (cell level). */ | |
131 | #define SOL_AAL 265 /* ATM Adaption Layer (packet level). */ | |
132 | #define SOL_IRDA 266 | |
f21acc89 UD |
133 | |
134 | /* Maximum queue length specifiable by listen. */ | |
135 | #define SOMAXCONN 128 | |
136 | ||
137 | /* Get the definition of the macro to define the common sockaddr members. */ | |
138 | #include <bits/sockaddr.h> | |
139 | ||
140 | /* Structure describing a generic socket address. */ | |
141 | struct sockaddr | |
142 | { | |
143 | __SOCKADDR_COMMON (sa_); /* Common data: address family and length. */ | |
144 | char sa_data[14]; /* Address data. */ | |
145 | }; | |
146 | ||
147 | ||
12b5b6b7 UD |
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 | |
d01d6319 | 151 | # define __ss_aligntype __uint64_t |
12b5b6b7 | 152 | #else |
d01d6319 | 153 | # define __ss_aligntype __uint32_t |
12b5b6b7 UD |
154 | #endif |
155 | #define _SS_SIZE 128 | |
d01d6319 | 156 | #define _SS_PADSIZE (_SS_SIZE - (2 * sizeof (__ss_aligntype))) |
12b5b6b7 UD |
157 | |
158 | struct sockaddr_storage | |
159 | { | |
160 | __SOCKADDR_COMMON (__ss_); /* Address family, etc. */ | |
d01d6319 | 161 | __ss_aligntype __ss_align; /* Force desired alignment. */ |
12b5b6b7 UD |
162 | char __ss_padding[_SS_PADSIZE]; |
163 | }; | |
164 | ||
165 | ||
f21acc89 UD |
166 | /* Bits in the FLAGS argument to `send', `recv', et al. */ |
167 | enum | |
168 | { | |
169 | MSG_OOB = 0x01, /* Process out-of-band data. */ | |
6d4752d8 | 170 | #define MSG_OOB MSG_OOB |
f21acc89 | 171 | MSG_PEEK = 0x02, /* Peek at incoming messages. */ |
6d4752d8 | 172 | #define MSG_PEEK MSG_PEEK |
f21acc89 | 173 | MSG_DONTROUTE = 0x04, /* Don't use local routing. */ |
6d4752d8 | 174 | #define MSG_DONTROUTE MSG_DONTROUTE |
d01d6319 UD |
175 | #ifdef __USE_GNU |
176 | /* DECnet uses a different name. */ | |
177 | MSG_TRYHARD = MSG_DONTROUTE, | |
178 | # define MSG_TRYHARD MSG_DONTROUTE | |
179 | #endif | |
f21acc89 | 180 | MSG_CTRUNC = 0x08, /* Control data lost before delivery. */ |
6d4752d8 | 181 | #define MSG_CTRUNC MSG_CTRUNC |
d01d6319 | 182 | MSG_PROXY = 0x10, /* Supply or ask second address. */ |
6d4752d8 | 183 | #define MSG_PROXY MSG_PROXY |
d01d6319 UD |
184 | MSG_TRUNC = 0x20, |
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 | |
192 | MSG_FIN = 0x200, | |
193 | #define MSG_FIN MSG_FIN | |
194 | MSG_SYN = 0x400, | |
195 | #define MSG_SYN MSG_SYN | |
64c81855 AJ |
196 | MSG_CONFIRM = 0x800, /* Confirm path validity. */ |
197 | #define MSG_CONFIRM MSG_CONFIRM | |
d01d6319 UD |
198 | MSG_RST = 0x1000, |
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 | |
f21acc89 UD |
204 | }; |
205 | ||
206 | ||
207 | /* Structure describing messages sent by | |
208 | `sendmsg' and received by `recvmsg'. */ | |
209 | struct msghdr | |
210 | { | |
4618c1f7 | 211 | void *msg_name; /* Address to send to/receive from. */ |
55c14926 | 212 | socklen_t msg_namelen; /* Length of address data. */ |
f21acc89 UD |
213 | |
214 | struct iovec *msg_iov; /* Vector of data to send/receive into. */ | |
6d4752d8 | 215 | size_t msg_iovlen; /* Number of elements in the vector. */ |
f21acc89 | 216 | |
4618c1f7 | 217 | void *msg_control; /* Ancillary data (eg BSD filedesc passing). */ |
6d4752d8 | 218 | size_t msg_controllen; /* Ancillary data buffer length. */ |
55c14926 | 219 | |
f21acc89 UD |
220 | int msg_flags; /* Flags on received message. */ |
221 | }; | |
222 | ||
223 | /* Structure used for storage of ancillary data object information. */ | |
224 | struct cmsghdr | |
225 | { | |
6d4752d8 | 226 | size_t cmsg_len; /* Length of data in cmsg_data plus length |
f21acc89 | 227 | of cmsghdr structure. */ |
f21acc89 UD |
228 | int cmsg_level; /* Originating protocol. */ |
229 | int cmsg_type; /* Protocol specific type. */ | |
230 | #if !defined __STRICT_ANSI__ && defined __GNUC__ && __GNUC__ >= 2 | |
231 | unsigned char __cmsg_data[0]; /* Ancillary data. */ | |
6d4752d8 | 232 | /* XXX Perhaps this should be removed. */ |
f21acc89 UD |
233 | #endif |
234 | }; | |
235 | ||
236 | /* Ancillary data object manipulation macros. */ | |
237 | #if !defined __STRICT_ANSI__ && defined __GNUC__ && __GNUC__ >= 2 | |
238 | # define CMSG_DATA(cmsg) ((cmsg)->__cmsg_data) | |
239 | #else | |
240 | # define CMSG_DATA(cmsg) ((unsigned char *) ((struct cmsghdr *) (cmsg) + 1)) | |
241 | #endif | |
242 | #define CMSG_NXTHDR(mhdr, cmsg) __cmsg_nxthdr (mhdr, cmsg) | |
243 | #define CMSG_FIRSTHDR(mhdr) \ | |
6ff5bc68 | 244 | ((size_t) (mhdr)->msg_controllen >= sizeof (struct cmsghdr) \ |
f21acc89 | 245 | ? (struct cmsghdr *) (mhdr)->msg_control : (struct cmsghdr *) NULL) |
6ff5bc68 UD |
246 | #define CMSG_ALIGN(len) (((len) + sizeof (size_t) - 1) \ |
247 | & ~(sizeof (size_t) - 1)) | |
248 | #define CMSG_SPACE(len) (CMSG_ALIGN (len) \ | |
249 | + CMSG_ALIGN (sizeof (struct cmsghdr))) | |
250 | #define CMSG_LEN(len) (CMSG_ALIGN (sizeof (struct cmsghdr)) + (len)) | |
f21acc89 | 251 | |
4618c1f7 AJ |
252 | extern struct cmsghdr *__cmsg_nxthdr (struct msghdr *__mhdr, |
253 | struct cmsghdr *__cmsg) __THROW; | |
6d4752d8 UD |
254 | #ifdef __USE_EXTERN_INLINES |
255 | # ifndef _EXTERN_INLINE | |
256 | # define _EXTERN_INLINE extern __inline | |
257 | # endif | |
f21acc89 | 258 | _EXTERN_INLINE struct cmsghdr * |
6d4752d8 | 259 | __cmsg_nxthdr (struct msghdr *__mhdr, struct cmsghdr *__cmsg) __THROW |
f21acc89 | 260 | { |
f21acc89 UD |
261 | if ((size_t) __cmsg->cmsg_len < sizeof (struct cmsghdr)) |
262 | /* The kernel header does this so there may be a reason. */ | |
d01d6319 | 263 | return 0; |
f21acc89 | 264 | |
6ff5bc68 UD |
265 | __cmsg = (struct cmsghdr *) ((unsigned char *) __cmsg |
266 | + CMSG_ALIGN (__cmsg->cmsg_len)); | |
267 | if ((unsigned char *) (__cmsg + 1) >= ((unsigned char *) __mhdr->msg_control | |
268 | + __mhdr->msg_controllen) | |
269 | || ((unsigned char *) __cmsg + CMSG_ALIGN (__cmsg->cmsg_len) | |
d1646309 | 270 | > ((unsigned char *) __mhdr->msg_control + __mhdr->msg_controllen))) |
f21acc89 | 271 | /* No more entries. */ |
d01d6319 | 272 | return 0; |
6ff5bc68 | 273 | return __cmsg; |
f21acc89 | 274 | } |
6d4752d8 | 275 | #endif /* Use `extern inline'. */ |
f21acc89 | 276 | |
6d4752d8 UD |
277 | /* Socket level message types. This must match the definitions in |
278 | <linux/socket.h>. */ | |
279 | enum | |
280 | { | |
281 | SCM_RIGHTS = 0x01, /* Transfer file descriptors. */ | |
282 | #define SCM_RIGHTS SCM_RIGHTS | |
283 | #ifdef __USE_BSD | |
284 | SCM_CREDENTIALS = 0x02, /* Credentials passing. */ | |
285 | # define SCM_CREDENTIALS SCM_CREDENTIALS | |
286 | #endif | |
287 | __SCM_CONNECT = 0x03 /* Data array is `struct scm_connect'. */ | |
288 | }; | |
289 | ||
290 | /* User visible structure for SCM_CREDENTIALS message */ | |
291 | ||
292 | struct ucred | |
293 | { | |
294 | pid_t pid; /* PID of sending process. */ | |
295 | uid_t uid; /* UID of sending process. */ | |
296 | gid_t gid; /* GID of sending process. */ | |
297 | }; | |
f21acc89 UD |
298 | |
299 | /* Get socket manipulation related informations from kernel headers. */ | |
300 | #include <asm/socket.h> | |
301 | ||
302 | ||
303 | /* Structure used to manipulate the SO_LINGER option. */ | |
304 | struct linger | |
305 | { | |
306 | int l_onoff; /* Nonzero to linger on close. */ | |
307 | int l_linger; /* Time to linger. */ | |
308 | }; | |
6d4752d8 UD |
309 | |
310 | #endif /* bits/socket.h */ |