1
2#ifndef _LINUX_SOCKET_H
3#define _LINUX_SOCKET_H
4
5
6#include <asm/socket.h>
7#include <linux/sockios.h>
8#include <linux/uio.h>
9#include <linux/types.h>
10#include <linux/compiler.h>
11#include <uapi/linux/socket.h>
12
13struct pid;
14struct cred;
15
16#define __sockaddr_check_size(size) \
17 BUILD_BUG_ON(((size) > sizeof(struct __kernel_sockaddr_storage)))
18
19#ifdef CONFIG_PROC_FS
20struct seq_file;
21extern void socket_seq_show(struct seq_file *seq);
22#endif
23
24typedef __kernel_sa_family_t sa_family_t;
25
26
27
28
29
30struct sockaddr {
31 sa_family_t sa_family;
32 char sa_data[14];
33};
34
35struct linger {
36 int l_onoff;
37 int l_linger;
38};
39
40#define sockaddr_storage __kernel_sockaddr_storage
41
42
43
44
45
46
47
48struct msghdr {
49 void *msg_name;
50 int msg_namelen;
51 struct iov_iter msg_iter;
52 void *msg_control;
53 __kernel_size_t msg_controllen;
54 unsigned int msg_flags;
55 struct kiocb *msg_iocb;
56};
57
58struct user_msghdr {
59 void __user *msg_name;
60 int msg_namelen;
61 struct iovec __user *msg_iov;
62 __kernel_size_t msg_iovlen;
63 void __user *msg_control;
64 __kernel_size_t msg_controllen;
65 unsigned int msg_flags;
66};
67
68
69struct mmsghdr {
70 struct user_msghdr msg_hdr;
71 unsigned int msg_len;
72};
73
74
75
76
77
78
79
80struct cmsghdr {
81 __kernel_size_t cmsg_len;
82 int cmsg_level;
83 int cmsg_type;
84};
85
86
87
88
89
90
91#define __CMSG_NXTHDR(ctl, len, cmsg) __cmsg_nxthdr((ctl),(len),(cmsg))
92#define CMSG_NXTHDR(mhdr, cmsg) cmsg_nxthdr((mhdr), (cmsg))
93
94#define CMSG_ALIGN(len) ( ((len)+sizeof(long)-1) & ~(sizeof(long)-1) )
95
96#define CMSG_DATA(cmsg) ((void *)((char *)(cmsg) + sizeof(struct cmsghdr)))
97#define CMSG_SPACE(len) (sizeof(struct cmsghdr) + CMSG_ALIGN(len))
98#define CMSG_LEN(len) (sizeof(struct cmsghdr) + (len))
99
100#define __CMSG_FIRSTHDR(ctl,len) ((len) >= sizeof(struct cmsghdr) ? \
101 (struct cmsghdr *)(ctl) : \
102 (struct cmsghdr *)NULL)
103#define CMSG_FIRSTHDR(msg) __CMSG_FIRSTHDR((msg)->msg_control, (msg)->msg_controllen)
104#define CMSG_OK(mhdr, cmsg) ((cmsg)->cmsg_len >= sizeof(struct cmsghdr) && \
105 (cmsg)->cmsg_len <= (unsigned long) \
106 ((mhdr)->msg_controllen - \
107 ((char *)(cmsg) - (char *)(mhdr)->msg_control)))
108#define for_each_cmsghdr(cmsg, msg) \
109 for (cmsg = CMSG_FIRSTHDR(msg); \
110 cmsg; \
111 cmsg = CMSG_NXTHDR(msg, cmsg))
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126static inline 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
138static inline struct cmsghdr * cmsg_nxthdr (struct msghdr *__msg, struct cmsghdr *__cmsg)
139{
140 return __cmsg_nxthdr(__msg->msg_control, __msg->msg_controllen, __cmsg);
141}
142
143static inline size_t msg_data_left(struct msghdr *msg)
144{
145 return iov_iter_count(&msg->msg_iter);
146}
147
148
149
150#define SCM_RIGHTS 0x01
151#define SCM_CREDENTIALS 0x02
152#define SCM_SECURITY 0x03
153
154struct ucred {
155 __u32 pid;
156 __u32 uid;
157 __u32 gid;
158};
159
160
161#define AF_UNSPEC 0
162#define AF_UNIX 1
163#define AF_LOCAL 1
164#define AF_INET 2
165#define AF_AX25 3
166#define AF_IPX 4
167#define AF_APPLETALK 5
168#define AF_NETROM 6
169#define AF_BRIDGE 7
170#define AF_ATMPVC 8
171#define AF_X25 9
172#define AF_INET6 10
173#define AF_ROSE 11
174#define AF_DECnet 12
175#define AF_NETBEUI 13
176#define AF_SECURITY 14
177#define AF_KEY 15
178#define AF_NETLINK 16
179#define AF_ROUTE AF_NETLINK
180#define AF_PACKET 17
181#define AF_ASH 18
182#define AF_ECONET 19
183#define AF_ATMSVC 20
184#define AF_RDS 21
185#define AF_SNA 22
186#define AF_IRDA 23
187#define AF_PPPOX 24
188#define AF_WANPIPE 25
189#define AF_LLC 26
190#define AF_IB 27
191#define AF_MPLS 28
192#define AF_CAN 29
193#define AF_TIPC 30
194#define AF_BLUETOOTH 31
195#define AF_IUCV 32
196#define AF_RXRPC 33
197#define AF_ISDN 34
198#define AF_PHONET 35
199#define AF_IEEE802154 36
200#define AF_CAIF 37
201#define AF_ALG 38
202#define AF_NFC 39
203#define AF_VSOCK 40
204#define AF_KCM 41
205#define AF_QIPCRTR 42
206#define AF_SMC 43
207
208
209
210#define AF_XDP 44
211
212#define AF_MAX 45
213
214
215#define PF_UNSPEC AF_UNSPEC
216#define PF_UNIX AF_UNIX
217#define PF_LOCAL AF_LOCAL
218#define PF_INET AF_INET
219#define PF_AX25 AF_AX25
220#define PF_IPX AF_IPX
221#define PF_APPLETALK AF_APPLETALK
222#define PF_NETROM AF_NETROM
223#define PF_BRIDGE AF_BRIDGE
224#define PF_ATMPVC AF_ATMPVC
225#define PF_X25 AF_X25
226#define PF_INET6 AF_INET6
227#define PF_ROSE AF_ROSE
228#define PF_DECnet AF_DECnet
229#define PF_NETBEUI AF_NETBEUI
230#define PF_SECURITY AF_SECURITY
231#define PF_KEY AF_KEY
232#define PF_NETLINK AF_NETLINK
233#define PF_ROUTE AF_ROUTE
234#define PF_PACKET AF_PACKET
235#define PF_ASH AF_ASH
236#define PF_ECONET AF_ECONET
237#define PF_ATMSVC AF_ATMSVC
238#define PF_RDS AF_RDS
239#define PF_SNA AF_SNA
240#define PF_IRDA AF_IRDA
241#define PF_PPPOX AF_PPPOX
242#define PF_WANPIPE AF_WANPIPE
243#define PF_LLC AF_LLC
244#define PF_IB AF_IB
245#define PF_MPLS AF_MPLS
246#define PF_CAN AF_CAN
247#define PF_TIPC AF_TIPC
248#define PF_BLUETOOTH AF_BLUETOOTH
249#define PF_IUCV AF_IUCV
250#define PF_RXRPC AF_RXRPC
251#define PF_ISDN AF_ISDN
252#define PF_PHONET AF_PHONET
253#define PF_IEEE802154 AF_IEEE802154
254#define PF_CAIF AF_CAIF
255#define PF_ALG AF_ALG
256#define PF_NFC AF_NFC
257#define PF_VSOCK AF_VSOCK
258#define PF_KCM AF_KCM
259#define PF_QIPCRTR AF_QIPCRTR
260#define PF_SMC AF_SMC
261#define PF_XDP AF_XDP
262#define PF_MAX AF_MAX
263
264
265#define SOMAXCONN 128
266
267
268
269
270
271#define MSG_OOB 1
272#define MSG_PEEK 2
273#define MSG_DONTROUTE 4
274#define MSG_TRYHARD 4
275#define MSG_CTRUNC 8
276#define MSG_PROBE 0x10
277#define MSG_TRUNC 0x20
278#define MSG_DONTWAIT 0x40
279#define MSG_EOR 0x80
280#define MSG_WAITALL 0x100
281#define MSG_FIN 0x200
282#define MSG_SYN 0x400
283#define MSG_CONFIRM 0x800
284#define MSG_RST 0x1000
285#define MSG_ERRQUEUE 0x2000
286#define MSG_NOSIGNAL 0x4000
287#define MSG_MORE 0x8000
288#define MSG_WAITFORONE 0x10000
289#define MSG_SENDPAGE_NOPOLICY 0x10000
290#define MSG_SENDPAGE_NOTLAST 0x20000
291#define MSG_BATCH 0x40000
292#define MSG_EOF MSG_FIN
293#define MSG_NO_SHARED_FRAGS 0x80000
294
295#define MSG_ZEROCOPY 0x4000000
296#define MSG_FASTOPEN 0x20000000
297#define MSG_CMSG_CLOEXEC 0x40000000
298
299
300#if defined(CONFIG_COMPAT)
301#define MSG_CMSG_COMPAT 0x80000000
302#else
303#define MSG_CMSG_COMPAT 0
304#endif
305
306
307
308#define SOL_IP 0
309
310#define SOL_TCP 6
311#define SOL_UDP 17
312#define SOL_IPV6 41
313#define SOL_ICMPV6 58
314#define SOL_SCTP 132
315#define SOL_UDPLITE 136
316#define SOL_RAW 255
317#define SOL_IPX 256
318#define SOL_AX25 257
319#define SOL_ATALK 258
320#define SOL_NETROM 259
321#define SOL_ROSE 260
322#define SOL_DECNET 261
323#define SOL_X25 262
324#define SOL_PACKET 263
325#define SOL_ATM 264
326#define SOL_AAL 265
327#define SOL_IRDA 266
328#define SOL_NETBEUI 267
329#define SOL_LLC 268
330#define SOL_DCCP 269
331#define SOL_NETLINK 270
332#define SOL_TIPC 271
333#define SOL_RXRPC 272
334#define SOL_PPPOL2TP 273
335#define SOL_BLUETOOTH 274
336#define SOL_PNPIPE 275
337#define SOL_RDS 276
338#define SOL_IUCV 277
339#define SOL_CAIF 278
340#define SOL_ALG 279
341#define SOL_NFC 280
342#define SOL_KCM 281
343#define SOL_TLS 282
344#define SOL_XDP 283
345
346
347#define IPX_TYPE 1
348
349extern int move_addr_to_kernel(void __user *uaddr, int ulen, struct sockaddr_storage *kaddr);
350extern int put_cmsg(struct msghdr*, int level, int type, int len, void *data);
351
352struct __kernel_timespec;
353struct old_timespec32;
354
355
356
357
358extern long __sys_recvmsg(int fd, struct user_msghdr __user *msg,
359 unsigned int flags, bool forbid_cmsg_compat);
360extern long __sys_sendmsg(int fd, struct user_msghdr __user *msg,
361 unsigned int flags, bool forbid_cmsg_compat);
362extern int __sys_recvmmsg(int fd, struct mmsghdr __user *mmsg,
363 unsigned int vlen, unsigned int flags,
364 struct __kernel_timespec __user *timeout,
365 struct old_timespec32 __user *timeout32);
366extern int __sys_sendmmsg(int fd, struct mmsghdr __user *mmsg,
367 unsigned int vlen, unsigned int flags,
368 bool forbid_cmsg_compat);
369
370
371extern int __sys_recvfrom(int fd, void __user *ubuf, size_t size,
372 unsigned int flags, struct sockaddr __user *addr,
373 int __user *addr_len);
374extern int __sys_sendto(int fd, void __user *buff, size_t len,
375 unsigned int flags, struct sockaddr __user *addr,
376 int addr_len);
377extern int __sys_accept4(int fd, struct sockaddr __user *upeer_sockaddr,
378 int __user *upeer_addrlen, int flags);
379extern int __sys_socket(int family, int type, int protocol);
380extern int __sys_bind(int fd, struct sockaddr __user *umyaddr, int addrlen);
381extern int __sys_connect(int fd, struct sockaddr __user *uservaddr,
382 int addrlen);
383extern int __sys_listen(int fd, int backlog);
384extern int __sys_getsockname(int fd, struct sockaddr __user *usockaddr,
385 int __user *usockaddr_len);
386extern int __sys_getpeername(int fd, struct sockaddr __user *usockaddr,
387 int __user *usockaddr_len);
388extern int __sys_socketpair(int family, int type, int protocol,
389 int __user *usockvec);
390extern int __sys_shutdown(int fd, int how);
391
392extern struct ns_common *get_net_ns(struct ns_common *ns);
393#endif
394