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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
1da177e4 LT |
2 | #ifndef _LINUX_SOCKET_H |
3 | #define _LINUX_SOCKET_H | |
4 | ||
1da177e4 | 5 | |
1da177e4 LT |
6 | #include <asm/socket.h> /* arch-dependent defines */ |
7 | #include <linux/sockios.h> /* the SIOCxxx I/O controls */ | |
8 | #include <linux/uio.h> /* iovec support */ | |
9 | #include <linux/types.h> /* pid_t */ | |
10 | #include <linux/compiler.h> /* __user */ | |
607ca46e | 11 | #include <uapi/linux/socket.h> |
1da177e4 | 12 | |
7999096f | 13 | struct file; |
3f551f94 EB |
14 | struct pid; |
15 | struct cred; | |
0fa03c62 | 16 | struct socket; |
3f551f94 | 17 | |
38bfd8f5 CG |
18 | #define __sockaddr_check_size(size) \ |
19 | BUILD_BUG_ON(((size) > sizeof(struct __kernel_sockaddr_storage))) | |
20 | ||
2ad0d9d4 | 21 | #ifdef CONFIG_PROC_FS |
20380731 ACM |
22 | struct seq_file; |
23 | extern void socket_seq_show(struct seq_file *seq); | |
2ad0d9d4 | 24 | #endif |
20380731 | 25 | |
6602a4ba | 26 | typedef __kernel_sa_family_t sa_family_t; |
1da177e4 LT |
27 | |
28 | /* | |
29 | * 1003.1g requires sa_family_t and that sa_data is char. | |
30 | */ | |
8a3c245c | 31 | |
1da177e4 LT |
32 | struct sockaddr { |
33 | sa_family_t sa_family; /* address family, AF_xxx */ | |
34 | char sa_data[14]; /* 14 bytes of protocol address */ | |
35 | }; | |
36 | ||
37 | struct linger { | |
38 | int l_onoff; /* Linger active */ | |
39 | int l_linger; /* How long to linger for */ | |
40 | }; | |
41 | ||
42 | #define sockaddr_storage __kernel_sockaddr_storage | |
43 | ||
44 | /* | |
45 | * As we do 4.4BSD message passing we use a 4.4BSD message passing | |
46 | * system, not 4.3. Thus msg_accrights(len) are now missing. They | |
47 | * belong in an obscure libc emulation or the bin. | |
48 | */ | |
8a3c245c | 49 | |
1da177e4 | 50 | struct msghdr { |
eb97768a FLB |
51 | void *msg_name; /* ptr to socket address structure */ |
52 | int msg_namelen; /* size of socket address structure */ | |
c0371da6 | 53 | struct iov_iter msg_iter; /* data */ |
1f466e1f CH |
54 | |
55 | /* | |
56 | * Ancillary data. msg_control_user is the user buffer used for the | |
57 | * recv* side when msg_control_is_user is set, msg_control is the kernel | |
58 | * buffer used for all other cases. | |
59 | */ | |
60 | union { | |
61 | void *msg_control; | |
62 | void __user *msg_control_user; | |
63 | }; | |
64 | bool msg_control_is_user : 1; | |
eb97768a FLB |
65 | __kernel_size_t msg_controllen; /* ancillary data buffer length */ |
66 | unsigned int msg_flags; /* flags on received message */ | |
0345f931 | 67 | struct kiocb *msg_iocb; /* ptr to iocb for async requests */ |
1da177e4 | 68 | }; |
8a3c245c | 69 | |
666547ff AV |
70 | struct user_msghdr { |
71 | void __user *msg_name; /* ptr to socket address structure */ | |
72 | int msg_namelen; /* size of socket address structure */ | |
73 | struct iovec __user *msg_iov; /* scatter/gather array */ | |
74 | __kernel_size_t msg_iovlen; /* # elements in msg_iov */ | |
75 | void __user *msg_control; /* ancillary data */ | |
76 | __kernel_size_t msg_controllen; /* ancillary data buffer length */ | |
77 | unsigned int msg_flags; /* flags on received message */ | |
78 | }; | |
1da177e4 | 79 | |
a2e27255 ACM |
80 | /* For recvmmsg/sendmmsg */ |
81 | struct mmsghdr { | |
666547ff | 82 | struct user_msghdr msg_hdr; |
95c96174 | 83 | unsigned int msg_len; |
a2e27255 ACM |
84 | }; |
85 | ||
1da177e4 LT |
86 | /* |
87 | * POSIX 1003.1g - ancillary data object information | |
63fa73e2 | 88 | * Ancillary data consists of a sequence of pairs of |
1da177e4 LT |
89 | * (cmsghdr, cmsg_data[]) |
90 | */ | |
91 | ||
92 | struct cmsghdr { | |
93 | __kernel_size_t cmsg_len; /* data byte count, including hdr */ | |
94 | int cmsg_level; /* originating protocol */ | |
95 | int cmsg_type; /* protocol-specific type */ | |
96 | }; | |
97 | ||
98 | /* | |
25985edc | 99 | * Ancillary data object information MACROS |
1da177e4 LT |
100 | * Table 5-14 of POSIX 1003.1g |
101 | */ | |
102 | ||
103 | #define __CMSG_NXTHDR(ctl, len, cmsg) __cmsg_nxthdr((ctl),(len),(cmsg)) | |
104 | #define CMSG_NXTHDR(mhdr, cmsg) cmsg_nxthdr((mhdr), (cmsg)) | |
105 | ||
106 | #define CMSG_ALIGN(len) ( ((len)+sizeof(long)-1) & ~(sizeof(long)-1) ) | |
107 | ||
0462b6bd CH |
108 | #define CMSG_DATA(cmsg) \ |
109 | ((void *)(cmsg) + sizeof(struct cmsghdr)) | |
110 | #define CMSG_USER_DATA(cmsg) \ | |
111 | ((void __user *)(cmsg) + sizeof(struct cmsghdr)) | |
1ff8cebf | 112 | #define CMSG_SPACE(len) (sizeof(struct cmsghdr) + CMSG_ALIGN(len)) |
113 | #define CMSG_LEN(len) (sizeof(struct cmsghdr) + (len)) | |
1da177e4 LT |
114 | |
115 | #define __CMSG_FIRSTHDR(ctl,len) ((len) >= sizeof(struct cmsghdr) ? \ | |
116 | (struct cmsghdr *)(ctl) : \ | |
117 | (struct cmsghdr *)NULL) | |
118 | #define CMSG_FIRSTHDR(msg) __CMSG_FIRSTHDR((msg)->msg_control, (msg)->msg_controllen) | |
119 | #define CMSG_OK(mhdr, cmsg) ((cmsg)->cmsg_len >= sizeof(struct cmsghdr) && \ | |
120 | (cmsg)->cmsg_len <= (unsigned long) \ | |
121 | ((mhdr)->msg_controllen - \ | |
122 | ((char *)(cmsg) - (char *)(mhdr)->msg_control))) | |
f95b414e GZ |
123 | #define for_each_cmsghdr(cmsg, msg) \ |
124 | for (cmsg = CMSG_FIRSTHDR(msg); \ | |
125 | cmsg; \ | |
126 | cmsg = CMSG_NXTHDR(msg, cmsg)) | |
1da177e4 | 127 | |
1da177e4 LT |
128 | /* |
129 | * Get the next cmsg header | |
130 | * | |
131 | * PLEASE, do not touch this function. If you think, that it is | |
132 | * incorrect, grep kernel sources and think about consequences | |
133 | * before trying to improve it. | |
134 | * | |
135 | * Now it always returns valid, not truncated ancillary object | |
136 | * HEADER. But caller still MUST check, that cmsg->cmsg_len is | |
137 | * inside range, given by msg->msg_controllen before using | |
138 | * ancillary object DATA. --ANK (980731) | |
139 | */ | |
8a3c245c | 140 | |
9c501935 | 141 | static inline struct cmsghdr * __cmsg_nxthdr(void *__ctl, __kernel_size_t __size, |
1da177e4 LT |
142 | struct cmsghdr *__cmsg) |
143 | { | |
144 | struct cmsghdr * __ptr; | |
145 | ||
146 | __ptr = (struct cmsghdr*)(((unsigned char *) __cmsg) + CMSG_ALIGN(__cmsg->cmsg_len)); | |
147 | if ((unsigned long)((char*)(__ptr+1) - (char *) __ctl) > __size) | |
148 | return (struct cmsghdr *)0; | |
149 | ||
150 | return __ptr; | |
151 | } | |
152 | ||
9c501935 | 153 | static inline struct cmsghdr * cmsg_nxthdr (struct msghdr *__msg, struct cmsghdr *__cmsg) |
1da177e4 LT |
154 | { |
155 | return __cmsg_nxthdr(__msg->msg_control, __msg->msg_controllen, __cmsg); | |
156 | } | |
157 | ||
01e97e65 AV |
158 | static inline size_t msg_data_left(struct msghdr *msg) |
159 | { | |
160 | return iov_iter_count(&msg->msg_iter); | |
161 | } | |
162 | ||
1da177e4 LT |
163 | /* "Socket"-level control message types: */ |
164 | ||
165 | #define SCM_RIGHTS 0x01 /* rw: access rights (array of int) */ | |
166 | #define SCM_CREDENTIALS 0x02 /* rw: struct ucred */ | |
2c7946a7 | 167 | #define SCM_SECURITY 0x03 /* rw: security label */ |
1da177e4 LT |
168 | |
169 | struct ucred { | |
170 | __u32 pid; | |
171 | __u32 uid; | |
172 | __u32 gid; | |
173 | }; | |
174 | ||
175 | /* Supported address families. */ | |
176 | #define AF_UNSPEC 0 | |
177 | #define AF_UNIX 1 /* Unix domain sockets */ | |
178 | #define AF_LOCAL 1 /* POSIX name for AF_UNIX */ | |
179 | #define AF_INET 2 /* Internet IP Protocol */ | |
180 | #define AF_AX25 3 /* Amateur Radio AX.25 */ | |
181 | #define AF_IPX 4 /* Novell IPX */ | |
182 | #define AF_APPLETALK 5 /* AppleTalk DDP */ | |
183 | #define AF_NETROM 6 /* Amateur Radio NET/ROM */ | |
184 | #define AF_BRIDGE 7 /* Multiprotocol bridge */ | |
185 | #define AF_ATMPVC 8 /* ATM PVCs */ | |
186 | #define AF_X25 9 /* Reserved for X.25 project */ | |
187 | #define AF_INET6 10 /* IP version 6 */ | |
188 | #define AF_ROSE 11 /* Amateur Radio X.25 PLP */ | |
189 | #define AF_DECnet 12 /* Reserved for DECnet project */ | |
190 | #define AF_NETBEUI 13 /* Reserved for 802.2LLC project*/ | |
191 | #define AF_SECURITY 14 /* Security callback pseudo AF */ | |
192 | #define AF_KEY 15 /* PF_KEY key management API */ | |
193 | #define AF_NETLINK 16 | |
194 | #define AF_ROUTE AF_NETLINK /* Alias to emulate 4.4BSD */ | |
195 | #define AF_PACKET 17 /* Packet family */ | |
196 | #define AF_ASH 18 /* Ash */ | |
197 | #define AF_ECONET 19 /* Acorn Econet */ | |
198 | #define AF_ATMSVC 20 /* ATM SVCs */ | |
8a7c4c77 | 199 | #define AF_RDS 21 /* RDS sockets */ |
1da177e4 LT |
200 | #define AF_SNA 22 /* Linux SNA Project (nutters!) */ |
201 | #define AF_IRDA 23 /* IRDA sockets */ | |
202 | #define AF_PPPOX 24 /* PPPoX sockets */ | |
203 | #define AF_WANPIPE 25 /* Wanpipe API Sockets */ | |
204 | #define AF_LLC 26 /* Linux LLC */ | |
8d36eb01 | 205 | #define AF_IB 27 /* Native InfiniBand address */ |
0189197f | 206 | #define AF_MPLS 28 /* MPLS */ |
cd05acfe | 207 | #define AF_CAN 29 /* Controller Area Network */ |
b97bf3fd | 208 | #define AF_TIPC 30 /* TIPC sockets */ |
1da177e4 | 209 | #define AF_BLUETOOTH 31 /* Bluetooth sockets */ |
eac3731b | 210 | #define AF_IUCV 32 /* IUCV sockets */ |
17926a79 | 211 | #define AF_RXRPC 33 /* RxRPC sockets */ |
04578dd3 | 212 | #define AF_ISDN 34 /* mISDN sockets */ |
bce7b154 | 213 | #define AF_PHONET 35 /* Phonet sockets */ |
fcb94e42 | 214 | #define AF_IEEE802154 36 /* IEEE802154 sockets */ |
70596b61 | 215 | #define AF_CAIF 37 /* CAIF sockets */ |
c2f9bff5 | 216 | #define AF_ALG 38 /* Algorithm sockets */ |
c7fe3b52 | 217 | #define AF_NFC 39 /* NFC sockets */ |
d021c344 | 218 | #define AF_VSOCK 40 /* vSockets */ |
ab7ac4eb | 219 | #define AF_KCM 41 /* Kernel Connection Multiplexor*/ |
bdabad3e | 220 | #define AF_QIPCRTR 42 /* Qualcomm IPC Router */ |
ac713874 UB |
221 | #define AF_SMC 43 /* smc sockets: reserve number for |
222 | * PF_SMC protocol family that | |
223 | * reuses AF_INET address family | |
224 | */ | |
68e8b849 | 225 | #define AF_XDP 44 /* XDP sockets */ |
bc49d816 JK |
226 | #define AF_MCTP 45 /* Management component |
227 | * transport protocol | |
228 | */ | |
ab7ac4eb | 229 | |
bc49d816 | 230 | #define AF_MAX 46 /* For now.. */ |
1da177e4 LT |
231 | |
232 | /* Protocol families, same as address families. */ | |
233 | #define PF_UNSPEC AF_UNSPEC | |
234 | #define PF_UNIX AF_UNIX | |
235 | #define PF_LOCAL AF_LOCAL | |
236 | #define PF_INET AF_INET | |
237 | #define PF_AX25 AF_AX25 | |
238 | #define PF_IPX AF_IPX | |
239 | #define PF_APPLETALK AF_APPLETALK | |
240 | #define PF_NETROM AF_NETROM | |
241 | #define PF_BRIDGE AF_BRIDGE | |
242 | #define PF_ATMPVC AF_ATMPVC | |
243 | #define PF_X25 AF_X25 | |
244 | #define PF_INET6 AF_INET6 | |
245 | #define PF_ROSE AF_ROSE | |
246 | #define PF_DECnet AF_DECnet | |
247 | #define PF_NETBEUI AF_NETBEUI | |
248 | #define PF_SECURITY AF_SECURITY | |
249 | #define PF_KEY AF_KEY | |
250 | #define PF_NETLINK AF_NETLINK | |
251 | #define PF_ROUTE AF_ROUTE | |
252 | #define PF_PACKET AF_PACKET | |
253 | #define PF_ASH AF_ASH | |
254 | #define PF_ECONET AF_ECONET | |
255 | #define PF_ATMSVC AF_ATMSVC | |
8a7c4c77 | 256 | #define PF_RDS AF_RDS |
1da177e4 LT |
257 | #define PF_SNA AF_SNA |
258 | #define PF_IRDA AF_IRDA | |
259 | #define PF_PPPOX AF_PPPOX | |
260 | #define PF_WANPIPE AF_WANPIPE | |
261 | #define PF_LLC AF_LLC | |
8d36eb01 | 262 | #define PF_IB AF_IB |
0189197f | 263 | #define PF_MPLS AF_MPLS |
cd05acfe | 264 | #define PF_CAN AF_CAN |
b97bf3fd | 265 | #define PF_TIPC AF_TIPC |
1da177e4 | 266 | #define PF_BLUETOOTH AF_BLUETOOTH |
eac3731b | 267 | #define PF_IUCV AF_IUCV |
17926a79 | 268 | #define PF_RXRPC AF_RXRPC |
04578dd3 | 269 | #define PF_ISDN AF_ISDN |
bce7b154 | 270 | #define PF_PHONET AF_PHONET |
fcb94e42 | 271 | #define PF_IEEE802154 AF_IEEE802154 |
70596b61 | 272 | #define PF_CAIF AF_CAIF |
c2f9bff5 | 273 | #define PF_ALG AF_ALG |
c7fe3b52 | 274 | #define PF_NFC AF_NFC |
d021c344 | 275 | #define PF_VSOCK AF_VSOCK |
ab7ac4eb | 276 | #define PF_KCM AF_KCM |
bdabad3e | 277 | #define PF_QIPCRTR AF_QIPCRTR |
ac713874 | 278 | #define PF_SMC AF_SMC |
68e8b849 | 279 | #define PF_XDP AF_XDP |
bc49d816 | 280 | #define PF_MCTP AF_MCTP |
1da177e4 LT |
281 | #define PF_MAX AF_MAX |
282 | ||
283 | /* Maximum queue length specifiable by listen. */ | |
19f92a03 | 284 | #define SOMAXCONN 4096 |
1da177e4 | 285 | |
8a3c245c | 286 | /* Flags we can use with send/ and recv. |
1da177e4 LT |
287 | Added those for 1003.1g not all are supported yet |
288 | */ | |
8a3c245c | 289 | |
01035bcc DM |
290 | #define MSG_OOB 1 |
291 | #define MSG_PEEK 2 | |
292 | #define MSG_DONTROUTE 4 | |
293 | #define MSG_TRYHARD 4 /* Synonym for MSG_DONTROUTE for DECnet */ | |
294 | #define MSG_CTRUNC 8 | |
295 | #define MSG_PROBE 0x10 /* Do not send. Only probe path f.e. for MTU */ | |
296 | #define MSG_TRUNC 0x20 | |
297 | #define MSG_DONTWAIT 0x40 /* Nonblocking io */ | |
298 | #define MSG_EOR 0x80 /* End of record */ | |
299 | #define MSG_WAITALL 0x100 /* Wait for a full request */ | |
300 | #define MSG_FIN 0x200 | |
301 | #define MSG_SYN 0x400 | |
302 | #define MSG_CONFIRM 0x800 /* Confirm path validity */ | |
303 | #define MSG_RST 0x1000 | |
304 | #define MSG_ERRQUEUE 0x2000 /* Fetch message from error queue */ | |
305 | #define MSG_NOSIGNAL 0x4000 /* Do not generate SIGPIPE */ | |
306 | #define MSG_MORE 0x8000 /* Sender will send more */ | |
307 | #define MSG_WAITFORONE 0x10000 /* recvmmsg(): block until 1+ packets avail */ | |
308 | #define MSG_SENDPAGE_NOPOLICY 0x10000 /* sendpage() internal : do no apply policy */ | |
309 | #define MSG_SENDPAGE_NOTLAST 0x20000 /* sendpage() internal : not the last page */ | |
310 | #define MSG_BATCH 0x40000 /* sendmmsg(): more messages coming */ | |
311 | #define MSG_EOF MSG_FIN | |
312 | #define MSG_NO_SHARED_FRAGS 0x80000 /* sendpage() internal : page frags are not shared */ | |
313 | #define MSG_SENDPAGE_DECRYPTED 0x100000 /* sendpage() internal : page may carry | |
314 | * plain text and require encryption | |
315 | */ | |
316 | ||
317 | #define MSG_ZEROCOPY 0x4000000 /* Use user data in kernel path */ | |
318 | #define MSG_FASTOPEN 0x20000000 /* Send data in TCP SYN */ | |
319 | #define MSG_CMSG_CLOEXEC 0x40000000 /* Set close_on_exec for file | |
320 | descriptor received through | |
321 | SCM_RIGHTS */ | |
1da177e4 | 322 | #if defined(CONFIG_COMPAT) |
01035bcc | 323 | #define MSG_CMSG_COMPAT 0x80000000 /* This message needs 32 bit fixups */ |
1da177e4 | 324 | #else |
01035bcc | 325 | #define MSG_CMSG_COMPAT 0 /* We never have 32 bit fixups */ |
1da177e4 LT |
326 | #endif |
327 | ||
328 | ||
329 | /* Setsockoptions(2) level. Thanks to BSD these must match IPPROTO_xxx */ | |
330 | #define SOL_IP 0 | |
331 | /* #define SOL_ICMP 1 No-no-no! Due to Linux :-) we cannot use SOL_ICMP=1 */ | |
332 | #define SOL_TCP 6 | |
333 | #define SOL_UDP 17 | |
334 | #define SOL_IPV6 41 | |
335 | #define SOL_ICMPV6 58 | |
336 | #define SOL_SCTP 132 | |
ba4e58ec | 337 | #define SOL_UDPLITE 136 /* UDP-Lite (RFC 3828) */ |
1da177e4 LT |
338 | #define SOL_RAW 255 |
339 | #define SOL_IPX 256 | |
340 | #define SOL_AX25 257 | |
341 | #define SOL_ATALK 258 | |
342 | #define SOL_NETROM 259 | |
343 | #define SOL_ROSE 260 | |
344 | #define SOL_DECNET 261 | |
345 | #define SOL_X25 262 | |
346 | #define SOL_PACKET 263 | |
347 | #define SOL_ATM 264 /* ATM layer (cell level) */ | |
348 | #define SOL_AAL 265 /* ATM Adaption Layer (packet level) */ | |
349 | #define SOL_IRDA 266 | |
350 | #define SOL_NETBEUI 267 | |
351 | #define SOL_LLC 268 | |
7c657876 | 352 | #define SOL_DCCP 269 |
9a4595bc | 353 | #define SOL_NETLINK 270 |
b97bf3fd | 354 | #define SOL_TIPC 271 |
17926a79 | 355 | #define SOL_RXRPC 272 |
cf14a4d0 | 356 | #define SOL_PPPOL2TP 273 |
2cb3377a | 357 | #define SOL_BLUETOOTH 274 |
02a47617 | 358 | #define SOL_PNPIPE 275 |
8a7c4c77 | 359 | #define SOL_RDS 276 |
9d5c5d8f | 360 | #define SOL_IUCV 277 |
70596b61 | 361 | #define SOL_CAIF 278 |
c2f9bff5 | 362 | #define SOL_ALG 279 |
26fd76ca | 363 | #define SOL_NFC 280 |
ab7ac4eb | 364 | #define SOL_KCM 281 |
3c4d7559 | 365 | #define SOL_TLS 282 |
68e8b849 | 366 | #define SOL_XDP 283 |
1da177e4 LT |
367 | |
368 | /* IPX options */ | |
369 | #define IPX_TYPE 1 | |
370 | ||
43db362d | 371 | extern int move_addr_to_kernel(void __user *uaddr, int ulen, struct sockaddr_storage *kaddr); |
1da177e4 LT |
372 | extern int put_cmsg(struct msghdr*, int level, int type, int len, void *data); |
373 | ||
9718475e | 374 | struct timespec64; |
e11d4284 AB |
375 | struct __kernel_timespec; |
376 | struct old_timespec32; | |
a2e27255 | 377 | |
9718475e DD |
378 | struct scm_timestamping_internal { |
379 | struct timespec64 ts[3]; | |
380 | }; | |
381 | ||
382 | extern void put_cmsg_scm_timestamping64(struct msghdr *msg, struct scm_timestamping_internal *tss); | |
383 | extern void put_cmsg_scm_timestamping(struct msghdr *msg, struct scm_timestamping_internal *tss); | |
384 | ||
e1834a32 DB |
385 | /* The __sys_...msg variants allow MSG_CMSG_COMPAT iff |
386 | * forbid_cmsg_compat==false | |
387 | */ | |
388 | extern long __sys_recvmsg(int fd, struct user_msghdr __user *msg, | |
389 | unsigned int flags, bool forbid_cmsg_compat); | |
390 | extern long __sys_sendmsg(int fd, struct user_msghdr __user *msg, | |
391 | unsigned int flags, bool forbid_cmsg_compat); | |
e11d4284 AB |
392 | extern int __sys_recvmmsg(int fd, struct mmsghdr __user *mmsg, |
393 | unsigned int vlen, unsigned int flags, | |
394 | struct __kernel_timespec __user *timeout, | |
395 | struct old_timespec32 __user *timeout32); | |
228e548e | 396 | extern int __sys_sendmmsg(int fd, struct mmsghdr __user *mmsg, |
e1834a32 DB |
397 | unsigned int vlen, unsigned int flags, |
398 | bool forbid_cmsg_compat); | |
03b1230c | 399 | extern long __sys_sendmsg_sock(struct socket *sock, struct msghdr *msg, |
0fa03c62 | 400 | unsigned int flags); |
03b1230c JA |
401 | extern long __sys_recvmsg_sock(struct socket *sock, struct msghdr *msg, |
402 | struct user_msghdr __user *umsg, | |
403 | struct sockaddr __user *uaddr, | |
aa1fa28f | 404 | unsigned int flags); |
03b1230c JA |
405 | extern int sendmsg_copy_msghdr(struct msghdr *msg, |
406 | struct user_msghdr __user *umsg, unsigned flags, | |
407 | struct iovec **iov); | |
408 | extern int recvmsg_copy_msghdr(struct msghdr *msg, | |
409 | struct user_msghdr __user *umsg, unsigned flags, | |
410 | struct sockaddr __user **uaddr, | |
411 | struct iovec **iov); | |
0a384abf JA |
412 | extern int __copy_msghdr_from_user(struct msghdr *kmsg, |
413 | struct user_msghdr __user *umsg, | |
414 | struct sockaddr __user **save_addr, | |
415 | struct iovec __user **uiov, size_t *nsegs); | |
7a09e1eb DB |
416 | |
417 | /* helpers which do the actual work for syscalls */ | |
418 | extern int __sys_recvfrom(int fd, void __user *ubuf, size_t size, | |
419 | unsigned int flags, struct sockaddr __user *addr, | |
420 | int __user *addr_len); | |
211b634b DB |
421 | extern int __sys_sendto(int fd, void __user *buff, size_t len, |
422 | unsigned int flags, struct sockaddr __user *addr, | |
423 | int addr_len); | |
de2ea4b6 JA |
424 | extern int __sys_accept4_file(struct file *file, unsigned file_flags, |
425 | struct sockaddr __user *upeer_sockaddr, | |
09952e3e JA |
426 | int __user *upeer_addrlen, int flags, |
427 | unsigned long nofile); | |
d32f89da PB |
428 | extern struct file *do_accept(struct file *file, unsigned file_flags, |
429 | struct sockaddr __user *upeer_sockaddr, | |
430 | int __user *upeer_addrlen, int flags); | |
4541e805 DB |
431 | extern int __sys_accept4(int fd, struct sockaddr __user *upeer_sockaddr, |
432 | int __user *upeer_addrlen, int flags); | |
9d6a15c3 | 433 | extern int __sys_socket(int family, int type, int protocol); |
a87d35d8 | 434 | extern int __sys_bind(int fd, struct sockaddr __user *umyaddr, int addrlen); |
f499a021 JA |
435 | extern int __sys_connect_file(struct file *file, struct sockaddr_storage *addr, |
436 | int addrlen, int file_flags); | |
1387c2c2 DB |
437 | extern int __sys_connect(int fd, struct sockaddr __user *uservaddr, |
438 | int addrlen); | |
25e290ee | 439 | extern int __sys_listen(int fd, int backlog); |
8882a107 DB |
440 | extern int __sys_getsockname(int fd, struct sockaddr __user *usockaddr, |
441 | int __user *usockaddr_len); | |
b21c8f83 DB |
442 | extern int __sys_getpeername(int fd, struct sockaddr __user *usockaddr, |
443 | int __user *usockaddr_len); | |
6debc8d8 DB |
444 | extern int __sys_socketpair(int family, int type, int protocol, |
445 | int __user *usockvec); | |
b713c195 | 446 | extern int __sys_shutdown_sock(struct socket *sock, int how); |
005a1aea | 447 | extern int __sys_shutdown(int fd, int how); |
1da177e4 | 448 | #endif /* _LINUX_SOCKET_H */ |