diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/linux/socket.h |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'include/linux/socket.h')
-rw-r--r-- | include/linux/socket.h | 295 |
1 files changed, 295 insertions, 0 deletions
diff --git a/include/linux/socket.h b/include/linux/socket.h new file mode 100644 index 000000000000..a5c7d96e4d2e --- /dev/null +++ b/include/linux/socket.h | |||
@@ -0,0 +1,295 @@ | |||
1 | #ifndef _LINUX_SOCKET_H | ||
2 | #define _LINUX_SOCKET_H | ||
3 | |||
4 | /* | ||
5 | * Desired design of maximum size and alignment (see RFC2553) | ||
6 | */ | ||
7 | #define _K_SS_MAXSIZE 128 /* Implementation specific max size */ | ||
8 | #define _K_SS_ALIGNSIZE (__alignof__ (struct sockaddr *)) | ||
9 | /* Implementation specific desired alignment */ | ||
10 | |||
11 | struct __kernel_sockaddr_storage { | ||
12 | unsigned short ss_family; /* address family */ | ||
13 | /* Following field(s) are implementation specific */ | ||
14 | char __data[_K_SS_MAXSIZE - sizeof(unsigned short)]; | ||
15 | /* space to achieve desired size, */ | ||
16 | /* _SS_MAXSIZE value minus size of ss_family */ | ||
17 | } __attribute__ ((aligned(_K_SS_ALIGNSIZE))); /* force desired alignment */ | ||
18 | |||
19 | #if defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2) | ||
20 | |||
21 | #include <linux/config.h> /* for CONFIG_COMPAT */ | ||
22 | #include <linux/linkage.h> | ||
23 | #include <asm/socket.h> /* arch-dependent defines */ | ||
24 | #include <linux/sockios.h> /* the SIOCxxx I/O controls */ | ||
25 | #include <linux/uio.h> /* iovec support */ | ||
26 | #include <linux/types.h> /* pid_t */ | ||
27 | #include <linux/compiler.h> /* __user */ | ||
28 | |||
29 | typedef unsigned short sa_family_t; | ||
30 | |||
31 | /* | ||
32 | * 1003.1g requires sa_family_t and that sa_data is char. | ||
33 | */ | ||
34 | |||
35 | struct sockaddr { | ||
36 | sa_family_t sa_family; /* address family, AF_xxx */ | ||
37 | char sa_data[14]; /* 14 bytes of protocol address */ | ||
38 | }; | ||
39 | |||
40 | struct linger { | ||
41 | int l_onoff; /* Linger active */ | ||
42 | int l_linger; /* How long to linger for */ | ||
43 | }; | ||
44 | |||
45 | #define sockaddr_storage __kernel_sockaddr_storage | ||
46 | |||
47 | /* | ||
48 | * As we do 4.4BSD message passing we use a 4.4BSD message passing | ||
49 | * system, not 4.3. Thus msg_accrights(len) are now missing. They | ||
50 | * belong in an obscure libc emulation or the bin. | ||
51 | */ | ||
52 | |||
53 | struct msghdr { | ||
54 | void * msg_name; /* Socket name */ | ||
55 | int msg_namelen; /* Length of name */ | ||
56 | struct iovec * msg_iov; /* Data blocks */ | ||
57 | __kernel_size_t msg_iovlen; /* Number of blocks */ | ||
58 | void * msg_control; /* Per protocol magic (eg BSD file descriptor passing) */ | ||
59 | __kernel_size_t msg_controllen; /* Length of cmsg list */ | ||
60 | unsigned msg_flags; | ||
61 | }; | ||
62 | |||
63 | /* | ||
64 | * POSIX 1003.1g - ancillary data object information | ||
65 | * Ancillary data consits of a sequence of pairs of | ||
66 | * (cmsghdr, cmsg_data[]) | ||
67 | */ | ||
68 | |||
69 | struct cmsghdr { | ||
70 | __kernel_size_t cmsg_len; /* data byte count, including hdr */ | ||
71 | int cmsg_level; /* originating protocol */ | ||
72 | int cmsg_type; /* protocol-specific type */ | ||
73 | }; | ||
74 | |||
75 | /* | ||
76 | * Ancilliary data object information MACROS | ||
77 | * Table 5-14 of POSIX 1003.1g | ||
78 | */ | ||
79 | |||
80 | #define __CMSG_NXTHDR(ctl, len, cmsg) __cmsg_nxthdr((ctl),(len),(cmsg)) | ||
81 | #define CMSG_NXTHDR(mhdr, cmsg) cmsg_nxthdr((mhdr), (cmsg)) | ||
82 | |||
83 | #define CMSG_ALIGN(len) ( ((len)+sizeof(long)-1) & ~(sizeof(long)-1) ) | ||
84 | |||
85 | #define CMSG_DATA(cmsg) ((void *)((char *)(cmsg) + CMSG_ALIGN(sizeof(struct cmsghdr)))) | ||
86 | #define CMSG_SPACE(len) (CMSG_ALIGN(sizeof(struct cmsghdr)) + CMSG_ALIGN(len)) | ||
87 | #define CMSG_LEN(len) (CMSG_ALIGN(sizeof(struct cmsghdr)) + (len)) | ||
88 | |||
89 | #define __CMSG_FIRSTHDR(ctl,len) ((len) >= sizeof(struct cmsghdr) ? \ | ||
90 | (struct cmsghdr *)(ctl) : \ | ||
91 | (struct cmsghdr *)NULL) | ||
92 | #define CMSG_FIRSTHDR(msg) __CMSG_FIRSTHDR((msg)->msg_control, (msg)->msg_controllen) | ||
93 | #define CMSG_OK(mhdr, cmsg) ((cmsg)->cmsg_len >= sizeof(struct cmsghdr) && \ | ||
94 | (cmsg)->cmsg_len <= (unsigned long) \ | ||
95 | ((mhdr)->msg_controllen - \ | ||
96 | ((char *)(cmsg) - (char *)(mhdr)->msg_control))) | ||
97 | |||
98 | /* | ||
99 | * This mess will go away with glibc | ||
100 | */ | ||
101 | |||
102 | #ifdef __KERNEL__ | ||
103 | #define __KINLINE static inline | ||
104 | #elif defined(__GNUC__) | ||
105 | #define __KINLINE static __inline__ | ||
106 | #elif defined(__cplusplus) | ||
107 | #define __KINLINE static inline | ||
108 | #else | ||
109 | #define __KINLINE static | ||
110 | #endif | ||
111 | |||
112 | |||
113 | /* | ||
114 | * Get the next cmsg header | ||
115 | * | ||
116 | * PLEASE, do not touch this function. If you think, that it is | ||
117 | * incorrect, grep kernel sources and think about consequences | ||
118 | * before trying to improve it. | ||
119 | * | ||
120 | * Now it always returns valid, not truncated ancillary object | ||
121 | * HEADER. But caller still MUST check, that cmsg->cmsg_len is | ||
122 | * inside range, given by msg->msg_controllen before using | ||
123 | * ancillary object DATA. --ANK (980731) | ||
124 | */ | ||
125 | |||
126 | __KINLINE struct cmsghdr * __cmsg_nxthdr(void *__ctl, __kernel_size_t __size, | ||
127 | struct cmsghdr *__cmsg) | ||
128 | { | ||
129 | struct cmsghdr * __ptr; | ||
130 | |||
131 | __ptr = (struct cmsghdr*)(((unsigned char *) __cmsg) + CMSG_ALIGN(__cmsg->cmsg_len)); | ||
132 | if ((unsigned long)((char*)(__ptr+1) - (char *) __ctl) > __size) | ||
133 | return (struct cmsghdr *)0; | ||
134 | |||
135 | return __ptr; | ||
136 | } | ||
137 | |||
138 | __KINLINE struct cmsghdr * cmsg_nxthdr (struct msghdr *__msg, struct cmsghdr *__cmsg) | ||
139 | { | ||
140 | return __cmsg_nxthdr(__msg->msg_control, __msg->msg_controllen, __cmsg); | ||
141 | } | ||
142 | |||
143 | /* "Socket"-level control message types: */ | ||
144 | |||
145 | #define SCM_RIGHTS 0x01 /* rw: access rights (array of int) */ | ||
146 | #define SCM_CREDENTIALS 0x02 /* rw: struct ucred */ | ||
147 | |||
148 | struct ucred { | ||
149 | __u32 pid; | ||
150 | __u32 uid; | ||
151 | __u32 gid; | ||
152 | }; | ||
153 | |||
154 | /* Supported address families. */ | ||
155 | #define AF_UNSPEC 0 | ||
156 | #define AF_UNIX 1 /* Unix domain sockets */ | ||
157 | #define AF_LOCAL 1 /* POSIX name for AF_UNIX */ | ||
158 | #define AF_INET 2 /* Internet IP Protocol */ | ||
159 | #define AF_AX25 3 /* Amateur Radio AX.25 */ | ||
160 | #define AF_IPX 4 /* Novell IPX */ | ||
161 | #define AF_APPLETALK 5 /* AppleTalk DDP */ | ||
162 | #define AF_NETROM 6 /* Amateur Radio NET/ROM */ | ||
163 | #define AF_BRIDGE 7 /* Multiprotocol bridge */ | ||
164 | #define AF_ATMPVC 8 /* ATM PVCs */ | ||
165 | #define AF_X25 9 /* Reserved for X.25 project */ | ||
166 | #define AF_INET6 10 /* IP version 6 */ | ||
167 | #define AF_ROSE 11 /* Amateur Radio X.25 PLP */ | ||
168 | #define AF_DECnet 12 /* Reserved for DECnet project */ | ||
169 | #define AF_NETBEUI 13 /* Reserved for 802.2LLC project*/ | ||
170 | #define AF_SECURITY 14 /* Security callback pseudo AF */ | ||
171 | #define AF_KEY 15 /* PF_KEY key management API */ | ||
172 | #define AF_NETLINK 16 | ||
173 | #define AF_ROUTE AF_NETLINK /* Alias to emulate 4.4BSD */ | ||
174 | #define AF_PACKET 17 /* Packet family */ | ||
175 | #define AF_ASH 18 /* Ash */ | ||
176 | #define AF_ECONET 19 /* Acorn Econet */ | ||
177 | #define AF_ATMSVC 20 /* ATM SVCs */ | ||
178 | #define AF_SNA 22 /* Linux SNA Project (nutters!) */ | ||
179 | #define AF_IRDA 23 /* IRDA sockets */ | ||
180 | #define AF_PPPOX 24 /* PPPoX sockets */ | ||
181 | #define AF_WANPIPE 25 /* Wanpipe API Sockets */ | ||
182 | #define AF_LLC 26 /* Linux LLC */ | ||
183 | #define AF_BLUETOOTH 31 /* Bluetooth sockets */ | ||
184 | #define AF_MAX 32 /* For now.. */ | ||
185 | |||
186 | /* Protocol families, same as address families. */ | ||
187 | #define PF_UNSPEC AF_UNSPEC | ||
188 | #define PF_UNIX AF_UNIX | ||
189 | #define PF_LOCAL AF_LOCAL | ||
190 | #define PF_INET AF_INET | ||
191 | #define PF_AX25 AF_AX25 | ||
192 | #define PF_IPX AF_IPX | ||
193 | #define PF_APPLETALK AF_APPLETALK | ||
194 | #define PF_NETROM AF_NETROM | ||
195 | #define PF_BRIDGE AF_BRIDGE | ||
196 | #define PF_ATMPVC AF_ATMPVC | ||
197 | #define PF_X25 AF_X25 | ||
198 | #define PF_INET6 AF_INET6 | ||
199 | #define PF_ROSE AF_ROSE | ||
200 | #define PF_DECnet AF_DECnet | ||
201 | #define PF_NETBEUI AF_NETBEUI | ||
202 | #define PF_SECURITY AF_SECURITY | ||
203 | #define PF_KEY AF_KEY | ||
204 | #define PF_NETLINK AF_NETLINK | ||
205 | #define PF_ROUTE AF_ROUTE | ||
206 | #define PF_PACKET AF_PACKET | ||
207 | #define PF_ASH AF_ASH | ||
208 | #define PF_ECONET AF_ECONET | ||
209 | #define PF_ATMSVC AF_ATMSVC | ||
210 | #define PF_SNA AF_SNA | ||
211 | #define PF_IRDA AF_IRDA | ||
212 | #define PF_PPPOX AF_PPPOX | ||
213 | #define PF_WANPIPE AF_WANPIPE | ||
214 | #define PF_LLC AF_LLC | ||
215 | #define PF_BLUETOOTH AF_BLUETOOTH | ||
216 | #define PF_MAX AF_MAX | ||
217 | |||
218 | /* Maximum queue length specifiable by listen. */ | ||
219 | #define SOMAXCONN 128 | ||
220 | |||
221 | /* Flags we can use with send/ and recv. | ||
222 | Added those for 1003.1g not all are supported yet | ||
223 | */ | ||
224 | |||
225 | #define MSG_OOB 1 | ||
226 | #define MSG_PEEK 2 | ||
227 | #define MSG_DONTROUTE 4 | ||
228 | #define MSG_TRYHARD 4 /* Synonym for MSG_DONTROUTE for DECnet */ | ||
229 | #define MSG_CTRUNC 8 | ||
230 | #define MSG_PROBE 0x10 /* Do not send. Only probe path f.e. for MTU */ | ||
231 | #define MSG_TRUNC 0x20 | ||
232 | #define MSG_DONTWAIT 0x40 /* Nonblocking io */ | ||
233 | #define MSG_EOR 0x80 /* End of record */ | ||
234 | #define MSG_WAITALL 0x100 /* Wait for a full request */ | ||
235 | #define MSG_FIN 0x200 | ||
236 | #define MSG_SYN 0x400 | ||
237 | #define MSG_CONFIRM 0x800 /* Confirm path validity */ | ||
238 | #define MSG_RST 0x1000 | ||
239 | #define MSG_ERRQUEUE 0x2000 /* Fetch message from error queue */ | ||
240 | #define MSG_NOSIGNAL 0x4000 /* Do not generate SIGPIPE */ | ||
241 | #define MSG_MORE 0x8000 /* Sender will send more */ | ||
242 | |||
243 | #define MSG_EOF MSG_FIN | ||
244 | |||
245 | #if defined(CONFIG_COMPAT) | ||
246 | #define MSG_CMSG_COMPAT 0x80000000 /* This message needs 32 bit fixups */ | ||
247 | #else | ||
248 | #define MSG_CMSG_COMPAT 0 /* We never have 32 bit fixups */ | ||
249 | #endif | ||
250 | |||
251 | |||
252 | /* Setsockoptions(2) level. Thanks to BSD these must match IPPROTO_xxx */ | ||
253 | #define SOL_IP 0 | ||
254 | /* #define SOL_ICMP 1 No-no-no! Due to Linux :-) we cannot use SOL_ICMP=1 */ | ||
255 | #define SOL_TCP 6 | ||
256 | #define SOL_UDP 17 | ||
257 | #define SOL_IPV6 41 | ||
258 | #define SOL_ICMPV6 58 | ||
259 | #define SOL_SCTP 132 | ||
260 | #define SOL_RAW 255 | ||
261 | #define SOL_IPX 256 | ||
262 | #define SOL_AX25 257 | ||
263 | #define SOL_ATALK 258 | ||
264 | #define SOL_NETROM 259 | ||
265 | #define SOL_ROSE 260 | ||
266 | #define SOL_DECNET 261 | ||
267 | #define SOL_X25 262 | ||
268 | #define SOL_PACKET 263 | ||
269 | #define SOL_ATM 264 /* ATM layer (cell level) */ | ||
270 | #define SOL_AAL 265 /* ATM Adaption Layer (packet level) */ | ||
271 | #define SOL_IRDA 266 | ||
272 | #define SOL_NETBEUI 267 | ||
273 | #define SOL_LLC 268 | ||
274 | |||
275 | /* IPX options */ | ||
276 | #define IPX_TYPE 1 | ||
277 | |||
278 | #ifdef __KERNEL__ | ||
279 | extern int memcpy_fromiovec(unsigned char *kdata, struct iovec *iov, int len); | ||
280 | extern int memcpy_fromiovecend(unsigned char *kdata, struct iovec *iov, | ||
281 | int offset, int len); | ||
282 | extern int csum_partial_copy_fromiovecend(unsigned char *kdata, | ||
283 | struct iovec *iov, | ||
284 | int offset, | ||
285 | unsigned int len, int *csump); | ||
286 | |||
287 | extern int verify_iovec(struct msghdr *m, struct iovec *iov, char *address, int mode); | ||
288 | extern int memcpy_toiovec(struct iovec *v, unsigned char *kdata, int len); | ||
289 | extern int move_addr_to_user(void *kaddr, int klen, void __user *uaddr, int __user *ulen); | ||
290 | extern int move_addr_to_kernel(void __user *uaddr, int ulen, void *kaddr); | ||
291 | extern int put_cmsg(struct msghdr*, int level, int type, int len, void *data); | ||
292 | |||
293 | #endif | ||
294 | #endif /* not kernel and not glibc */ | ||
295 | #endif /* _LINUX_SOCKET_H */ | ||