1151497Sru/* SPDX-License-Identifier: GPL-2.0 */ 2151497Sru#ifndef _LINUX_SOCKET_H 3151497Sru#define _LINUX_SOCKET_H 4151497Sru 5151497Sru 6151497Sru#include <asm/socket.h> /* arch-dependent defines */ 7151497Sru#include <linux/sockios.h> /* the SIOCxxx I/O controls */ 8151497Sru#include <linux/uio.h> /* iovec support */ 9151497Sru#include <linux/types.h> /* pid_t */ 10151497Sru#include <linux/compiler.h> /* __user */ 11151497Sru#include <uapi/linux/socket.h> 12151497Sru 13151497Srustruct file; 14151497Srustruct pid; 15151497Srustruct cred; 16151497Srustruct socket; 17151497Srustruct sock; 18151497Srustruct sk_buff; 19151497Sru 20151497Sru#define __sockaddr_check_size(size) \ 21151497Sru BUILD_BUG_ON(((size) > sizeof(struct __kernel_sockaddr_storage))) 22151497Sru 23151497Sru#ifdef CONFIG_PROC_FS 24151497Srustruct seq_file; 25151497Sruextern void socket_seq_show(struct seq_file *seq); 26151497Sru#endif 27151497Sru 28151497Srutypedef __kernel_sa_family_t sa_family_t; 29151497Sru 30151497Sru/* 31151497Sru * 1003.1g requires sa_family_t and that sa_data is char. 32151497Sru */ 33151497Sru 34151497Srustruct sockaddr { 35151497Sru sa_family_t sa_family; /* address family, AF_xxx */ 36151497Sru union { 37151497Sru char sa_data_min[14]; /* Minimum 14 bytes of protocol address */ 38151497Sru DECLARE_FLEX_ARRAY(char, sa_data); 39151497Sru }; 40151497Sru}; 41151497Sru 42151497Srustruct linger { 43151497Sru int l_onoff; /* Linger active */ 44151497Sru int l_linger; /* How long to linger for */ 45151497Sru}; 46151497Sru 47151497Sru#define sockaddr_storage __kernel_sockaddr_storage 48151497Sru 49151497Sru/* 50151497Sru * As we do 4.4BSD message passing we use a 4.4BSD message passing 51151497Sru * system, not 4.3. Thus msg_accrights(len) are now missing. They 52151497Sru * belong in an obscure libc emulation or the bin. 53151497Sru */ 54151497Sru 55151497Srustruct msghdr { 56151497Sru void *msg_name; /* ptr to socket address structure */ 57151497Sru int msg_namelen; /* size of socket address structure */ 58151497Sru 59151497Sru int msg_inq; /* output, data left in socket */ 60151497Sru 61151497Sru struct iov_iter msg_iter; /* data */ 62151497Sru 63151497Sru /* 64151497Sru * Ancillary data. msg_control_user is the user buffer used for the 65151497Sru * recv* side when msg_control_is_user is set, msg_control is the kernel 66151497Sru * buffer used for all other cases. 67151497Sru */ 68151497Sru union { 69151497Sru void *msg_control; 70151497Sru void __user *msg_control_user; 71151497Sru }; 72151497Sru bool msg_control_is_user : 1; 73151497Sru bool msg_get_inq : 1;/* return INQ after receive */ 74151497Sru unsigned int msg_flags; /* flags on received message */ 75151497Sru __kernel_size_t msg_controllen; /* ancillary data buffer length */ 76151497Sru struct kiocb *msg_iocb; /* ptr to iocb for async requests */ 77151497Sru struct ubuf_info *msg_ubuf; 78151497Sru int (*sg_from_iter)(struct sock *sk, struct sk_buff *skb, 79151497Sru struct iov_iter *from, size_t length); 80151497Sru}; 81151497Sru 82151497Srustruct user_msghdr { 83151497Sru void __user *msg_name; /* ptr to socket address structure */ 84151497Sru int msg_namelen; /* size of socket address structure */ 85151497Sru struct iovec __user *msg_iov; /* scatter/gather array */ 86151497Sru __kernel_size_t msg_iovlen; /* # elements in msg_iov */ 87151497Sru void __user *msg_control; /* ancillary data */ 88151497Sru __kernel_size_t msg_controllen; /* ancillary data buffer length */ 89151497Sru unsigned int msg_flags; /* flags on received message */ 90151497Sru}; 91151497Sru 92151497Sru/* For recvmmsg/sendmmsg */ 93151497Srustruct mmsghdr { 94151497Sru struct user_msghdr msg_hdr; 95151497Sru unsigned int msg_len; 96151497Sru}; 97151497Sru 98151497Sru/* 99151497Sru * POSIX 1003.1g - ancillary data object information 100151497Sru * Ancillary data consists of a sequence of pairs of 101151497Sru * (cmsghdr, cmsg_data[]) 102151497Sru */ 103151497Sru 104151497Srustruct cmsghdr { 105151497Sru __kernel_size_t cmsg_len; /* data byte count, including hdr */ 106151497Sru int cmsg_level; /* originating protocol */ 107151497Sru int cmsg_type; /* protocol-specific type */ 108151497Sru}; 109151497Sru 110151497Sru/* 111151497Sru * Ancillary data object information MACROS 112151497Sru * Table 5-14 of POSIX 1003.1g 113151497Sru */ 114151497Sru 115151497Sru#define __CMSG_NXTHDR(ctl, len, cmsg) __cmsg_nxthdr((ctl),(len),(cmsg)) 116151497Sru#define CMSG_NXTHDR(mhdr, cmsg) cmsg_nxthdr((mhdr), (cmsg)) 117151497Sru 118151497Sru#define CMSG_ALIGN(len) ( ((len)+sizeof(long)-1) & ~(sizeof(long)-1) ) 119151497Sru 120151497Sru#define CMSG_DATA(cmsg) \ 121151497Sru ((void *)(cmsg) + sizeof(struct cmsghdr)) 122151497Sru#define CMSG_USER_DATA(cmsg) \ 123151497Sru ((void __user *)(cmsg) + sizeof(struct cmsghdr)) 124151497Sru#define CMSG_SPACE(len) (sizeof(struct cmsghdr) + CMSG_ALIGN(len)) 125151497Sru#define CMSG_LEN(len) (sizeof(struct cmsghdr) + (len)) 126151497Sru 127151497Sru#define __CMSG_FIRSTHDR(ctl,len) ((len) >= sizeof(struct cmsghdr) ? \ 128151497Sru (struct cmsghdr *)(ctl) : \ 129151497Sru (struct cmsghdr *)NULL) 130151497Sru#define CMSG_FIRSTHDR(msg) __CMSG_FIRSTHDR((msg)->msg_control, (msg)->msg_controllen) 131151497Sru#define CMSG_OK(mhdr, cmsg) ((cmsg)->cmsg_len >= sizeof(struct cmsghdr) && \ 132151497Sru (cmsg)->cmsg_len <= (unsigned long) \ 133151497Sru ((mhdr)->msg_controllen - \ 134151497Sru ((char *)(cmsg) - (char *)(mhdr)->msg_control))) 135151497Sru#define for_each_cmsghdr(cmsg, msg) \ 136151497Sru for (cmsg = CMSG_FIRSTHDR(msg); \ 137151497Sru cmsg; \ 138151497Sru cmsg = CMSG_NXTHDR(msg, cmsg)) 139151497Sru 140151497Sru/* 141151497Sru * Get the next cmsg header 142151497Sru * 143151497Sru * PLEASE, do not touch this function. If you think, that it is 144151497Sru * incorrect, grep kernel sources and think about consequences 145151497Sru * before trying to improve it. 146151497Sru * 147151497Sru * Now it always returns valid, not truncated ancillary object 148151497Sru * HEADER. But caller still MUST check, that cmsg->cmsg_len is 149151497Sru * inside range, given by msg->msg_controllen before using 150151497Sru * ancillary object DATA. --ANK (980731) 151151497Sru */ 152151497Sru 153151497Srustatic inline struct cmsghdr * __cmsg_nxthdr(void *__ctl, __kernel_size_t __size, 154151497Sru struct cmsghdr *__cmsg) 155151497Sru{ 156151497Sru struct cmsghdr * __ptr; 157151497Sru 158151497Sru __ptr = (struct cmsghdr*)(((unsigned char *) __cmsg) + CMSG_ALIGN(__cmsg->cmsg_len)); 159151497Sru if ((unsigned long)((char*)(__ptr+1) - (char *) __ctl) > __size) 160151497Sru return (struct cmsghdr *)0; 161151497Sru 162151497Sru return __ptr; 163151497Sru} 164151497Sru 165151497Srustatic inline struct cmsghdr * cmsg_nxthdr (struct msghdr *__msg, struct cmsghdr *__cmsg) 166151497Sru{ 167151497Sru return __cmsg_nxthdr(__msg->msg_control, __msg->msg_controllen, __cmsg); 168151497Sru} 169151497Sru 170151497Srustatic inline size_t msg_data_left(struct msghdr *msg) 171151497Sru{ 172151497Sru return iov_iter_count(&msg->msg_iter); 173151497Sru} 174151497Sru 175151497Sru/* "Socket"-level control message types: */ 176151497Sru 177151497Sru#define SCM_RIGHTS 0x01 /* rw: access rights (array of int) */ 178151497Sru#define SCM_CREDENTIALS 0x02 /* rw: struct ucred */ 179151497Sru#define SCM_SECURITY 0x03 /* rw: security label */ 180151497Sru#define SCM_PIDFD 0x04 /* ro: pidfd (int) */ 181151497Sru 182151497Srustruct ucred { 183151497Sru __u32 pid; 184151497Sru __u32 uid; 185151497Sru __u32 gid; 186151497Sru}; 187151497Sru 188151497Sru/* Supported address families. */ 189151497Sru#define AF_UNSPEC 0 190151497Sru#define AF_UNIX 1 /* Unix domain sockets */ 191151497Sru#define AF_LOCAL 1 /* POSIX name for AF_UNIX */ 192151497Sru#define AF_INET 2 /* Internet IP Protocol */ 193151497Sru#define AF_AX25 3 /* Amateur Radio AX.25 */ 194151497Sru#define AF_IPX 4 /* Novell IPX */ 195151497Sru#define AF_APPLETALK 5 /* AppleTalk DDP */ 196151497Sru#define AF_NETROM 6 /* Amateur Radio NET/ROM */ 197151497Sru#define AF_BRIDGE 7 /* Multiprotocol bridge */ 198151497Sru#define AF_ATMPVC 8 /* ATM PVCs */ 199151497Sru#define AF_X25 9 /* Reserved for X.25 project */ 200151497Sru#define AF_INET6 10 /* IP version 6 */ 201151497Sru#define AF_ROSE 11 /* Amateur Radio X.25 PLP */ 202151497Sru#define AF_DECnet 12 /* Reserved for DECnet project */ 203151497Sru#define AF_NETBEUI 13 /* Reserved for 802.2LLC project*/ 204151497Sru#define AF_SECURITY 14 /* Security callback pseudo AF */ 205151497Sru#define AF_KEY 15 /* PF_KEY key management API */ 206151497Sru#define AF_NETLINK 16 207151497Sru#define AF_ROUTE AF_NETLINK /* Alias to emulate 4.4BSD */ 208151497Sru#define AF_PACKET 17 /* Packet family */ 209151497Sru#define AF_ASH 18 /* Ash */ 210151497Sru#define AF_ECONET 19 /* Acorn Econet */ 211151497Sru#define AF_ATMSVC 20 /* ATM SVCs */ 212151497Sru#define AF_RDS 21 /* RDS sockets */ 213151497Sru#define AF_SNA 22 /* Linux SNA Project (nutters!) */ 214151497Sru#define AF_IRDA 23 /* IRDA sockets */ 215151497Sru#define AF_PPPOX 24 /* PPPoX sockets */ 216151497Sru#define AF_WANPIPE 25 /* Wanpipe API Sockets */ 217151497Sru#define AF_LLC 26 /* Linux LLC */ 218151497Sru#define AF_IB 27 /* Native InfiniBand address */ 219151497Sru#define AF_MPLS 28 /* MPLS */ 220151497Sru#define AF_CAN 29 /* Controller Area Network */ 221151497Sru#define AF_TIPC 30 /* TIPC sockets */ 222151497Sru#define AF_BLUETOOTH 31 /* Bluetooth sockets */ 223151497Sru#define AF_IUCV 32 /* IUCV sockets */ 224151497Sru#define AF_RXRPC 33 /* RxRPC sockets */ 225151497Sru#define AF_ISDN 34 /* mISDN sockets */ 226151497Sru#define AF_PHONET 35 /* Phonet sockets */ 227151497Sru#define AF_IEEE802154 36 /* IEEE802154 sockets */ 228151497Sru#define AF_CAIF 37 /* CAIF sockets */ 229151497Sru#define AF_ALG 38 /* Algorithm sockets */ 230151497Sru#define AF_NFC 39 /* NFC sockets */ 231151497Sru#define AF_VSOCK 40 /* vSockets */ 232151497Sru#define AF_KCM 41 /* Kernel Connection Multiplexor*/ 233151497Sru#define AF_QIPCRTR 42 /* Qualcomm IPC Router */ 234151497Sru#define AF_SMC 43 /* smc sockets: reserve number for 235151497Sru * PF_SMC protocol family that 236151497Sru * reuses AF_INET address family 237151497Sru */ 238151497Sru#define AF_XDP 44 /* XDP sockets */ 239151497Sru#define AF_MCTP 45 /* Management component 240151497Sru * transport protocol 241151497Sru */ 242151497Sru 243151497Sru#define AF_MAX 46 /* For now.. */ 244151497Sru 245151497Sru/* Protocol families, same as address families. */ 246151497Sru#define PF_UNSPEC AF_UNSPEC 247151497Sru#define PF_UNIX AF_UNIX 248151497Sru#define PF_LOCAL AF_LOCAL 249151497Sru#define PF_INET AF_INET 250151497Sru#define PF_AX25 AF_AX25 251151497Sru#define PF_IPX AF_IPX 252151497Sru#define PF_APPLETALK AF_APPLETALK 253151497Sru#define PF_NETROM AF_NETROM 254151497Sru#define PF_BRIDGE AF_BRIDGE 255151497Sru#define PF_ATMPVC AF_ATMPVC 256151497Sru#define PF_X25 AF_X25 257151497Sru#define PF_INET6 AF_INET6 258151497Sru#define PF_ROSE AF_ROSE 259151497Sru#define PF_DECnet AF_DECnet 260151497Sru#define PF_NETBEUI AF_NETBEUI 261151497Sru#define PF_SECURITY AF_SECURITY 262151497Sru#define PF_KEY AF_KEY 263151497Sru#define PF_NETLINK AF_NETLINK 264151497Sru#define PF_ROUTE AF_ROUTE 265151497Sru#define PF_PACKET AF_PACKET 266151497Sru#define PF_ASH AF_ASH 267151497Sru#define PF_ECONET AF_ECONET 268151497Sru#define PF_ATMSVC AF_ATMSVC 269151497Sru#define PF_RDS AF_RDS 270151497Sru#define PF_SNA AF_SNA 271151497Sru#define PF_IRDA AF_IRDA 272151497Sru#define PF_PPPOX AF_PPPOX 273151497Sru#define PF_WANPIPE AF_WANPIPE 274151497Sru#define PF_LLC AF_LLC 275151497Sru#define PF_IB AF_IB 276151497Sru#define PF_MPLS AF_MPLS 277151497Sru#define PF_CAN AF_CAN 278151497Sru#define PF_TIPC AF_TIPC 279151497Sru#define PF_BLUETOOTH AF_BLUETOOTH 280151497Sru#define PF_IUCV AF_IUCV 281151497Sru#define PF_RXRPC AF_RXRPC 282151497Sru#define PF_ISDN AF_ISDN 283151497Sru#define PF_PHONET AF_PHONET 284151497Sru#define PF_IEEE802154 AF_IEEE802154 285151497Sru#define PF_CAIF AF_CAIF 286151497Sru#define PF_ALG AF_ALG 287151497Sru#define PF_NFC AF_NFC 288151497Sru#define PF_VSOCK AF_VSOCK 289151497Sru#define PF_KCM AF_KCM 290151497Sru#define PF_QIPCRTR AF_QIPCRTR 291151497Sru#define PF_SMC AF_SMC 292151497Sru#define PF_XDP AF_XDP 293151497Sru#define PF_MCTP AF_MCTP 294151497Sru#define PF_MAX AF_MAX 295151497Sru 296151497Sru/* Maximum queue length specifiable by listen. */ 297151497Sru#define SOMAXCONN 4096 298151497Sru 299151497Sru/* Flags we can use with send/ and recv. 300151497Sru Added those for 1003.1g not all are supported yet 301151497Sru */ 302151497Sru 303151497Sru#define MSG_OOB 1 304151497Sru#define MSG_PEEK 2 305151497Sru#define MSG_DONTROUTE 4 306151497Sru#define MSG_TRYHARD 4 /* Synonym for MSG_DONTROUTE for DECnet */ 307151497Sru#define MSG_CTRUNC 8 308151497Sru#define MSG_PROBE 0x10 /* Do not send. Only probe path f.e. for MTU */ 309151497Sru#define MSG_TRUNC 0x20 310151497Sru#define MSG_DONTWAIT 0x40 /* Nonblocking io */ 311151497Sru#define MSG_EOR 0x80 /* End of record */ 312151497Sru#define MSG_WAITALL 0x100 /* Wait for a full request */ 313151497Sru#define MSG_FIN 0x200 314151497Sru#define MSG_SYN 0x400 315151497Sru#define MSG_CONFIRM 0x800 /* Confirm path validity */ 316151497Sru#define MSG_RST 0x1000 317151497Sru#define MSG_ERRQUEUE 0x2000 /* Fetch message from error queue */ 318151497Sru#define MSG_NOSIGNAL 0x4000 /* Do not generate SIGPIPE */ 319151497Sru#define MSG_MORE 0x8000 /* Sender will send more */ 320151497Sru#define MSG_WAITFORONE 0x10000 /* recvmmsg(): block until 1+ packets avail */ 321151497Sru#define MSG_SENDPAGE_NOPOLICY 0x10000 /* sendpage() internal : do no apply policy */ 322151497Sru#define MSG_BATCH 0x40000 /* sendmmsg(): more messages coming */ 323151497Sru#define MSG_EOF MSG_FIN 324151497Sru#define MSG_NO_SHARED_FRAGS 0x80000 /* sendpage() internal : page frags are not shared */ 325151497Sru#define MSG_SENDPAGE_DECRYPTED 0x100000 /* sendpage() internal : page may carry 326151497Sru * plain text and require encryption 327151497Sru */ 328151497Sru 329151497Sru#define MSG_ZEROCOPY 0x4000000 /* Use user data in kernel path */ 330151497Sru#define MSG_SPLICE_PAGES 0x8000000 /* Splice the pages from the iterator in sendmsg() */ 331151497Sru#define MSG_FASTOPEN 0x20000000 /* Send data in TCP SYN */ 332151497Sru#define MSG_CMSG_CLOEXEC 0x40000000 /* Set close_on_exec for file 333151497Sru descriptor received through 334151497Sru SCM_RIGHTS */ 335151497Sru#if defined(CONFIG_COMPAT) 336151497Sru#define MSG_CMSG_COMPAT 0x80000000 /* This message needs 32 bit fixups */ 337151497Sru#else 338151497Sru#define MSG_CMSG_COMPAT 0 /* We never have 32 bit fixups */ 339151497Sru#endif 340151497Sru 341151497Sru/* Flags to be cleared on entry by sendmsg and sendmmsg syscalls */ 342151497Sru#define MSG_INTERNAL_SENDMSG_FLAGS \ 343151497Sru (MSG_SPLICE_PAGES | MSG_SENDPAGE_NOPOLICY | MSG_SENDPAGE_DECRYPTED) 344151497Sru 345151497Sru/* Setsockoptions(2) level. Thanks to BSD these must match IPPROTO_xxx */ 346151497Sru#define SOL_IP 0 347151497Sru/* #define SOL_ICMP 1 No-no-no! Due to Linux :-) we cannot use SOL_ICMP=1 */ 348151497Sru#define SOL_TCP 6 349151497Sru#define SOL_UDP 17 350151497Sru#define SOL_IPV6 41 351151497Sru#define SOL_ICMPV6 58 352151497Sru#define SOL_SCTP 132 353151497Sru#define SOL_UDPLITE 136 /* UDP-Lite (RFC 3828) */ 354151497Sru#define SOL_RAW 255 355151497Sru#define SOL_IPX 256 356151497Sru#define SOL_AX25 257 357151497Sru#define SOL_ATALK 258 358151497Sru#define SOL_NETROM 259 359151497Sru#define SOL_ROSE 260 360151497Sru#define SOL_DECNET 261 361151497Sru#define SOL_X25 262 362151497Sru#define SOL_PACKET 263 363151497Sru#define SOL_ATM 264 /* ATM layer (cell level) */ 364151497Sru#define SOL_AAL 265 /* ATM Adaption Layer (packet level) */ 365151497Sru#define SOL_IRDA 266 366151497Sru#define SOL_NETBEUI 267 367151497Sru#define SOL_LLC 268 368151497Sru#define SOL_DCCP 269 369151497Sru#define SOL_NETLINK 270 370151497Sru#define SOL_TIPC 271 371151497Sru#define SOL_RXRPC 272 372151497Sru#define SOL_PPPOL2TP 273 373151497Sru#define SOL_BLUETOOTH 274 374151497Sru#define SOL_PNPIPE 275 375151497Sru#define SOL_RDS 276 376151497Sru#define SOL_IUCV 277 377151497Sru#define SOL_CAIF 278 378151497Sru#define SOL_ALG 279 379151497Sru#define SOL_NFC 280 380151497Sru#define SOL_KCM 281 381151497Sru#define SOL_TLS 282 382151497Sru#define SOL_XDP 283 383151497Sru#define SOL_MPTCP 284 384151497Sru#define SOL_MCTP 285 385151497Sru#define SOL_SMC 286 386151497Sru#define SOL_VSOCK 287 387151497Sru 388151497Sru/* IPX options */ 389151497Sru#define IPX_TYPE 1 390151497Sru 391151497Sruextern int move_addr_to_kernel(void __user *uaddr, int ulen, struct sockaddr_storage *kaddr); 392151497Sruextern int put_cmsg(struct msghdr*, int level, int type, int len, void *data); 393151497Sru 394151497Srustruct timespec64; 395151497Srustruct __kernel_timespec; 396151497Srustruct old_timespec32; 397151497Sru 398151497Srustruct scm_timestamping_internal { 399151497Sru struct timespec64 ts[3]; 400151497Sru}; 401151497Sru 402151497Sruextern void put_cmsg_scm_timestamping64(struct msghdr *msg, struct scm_timestamping_internal *tss); 403151497Sruextern void put_cmsg_scm_timestamping(struct msghdr *msg, struct scm_timestamping_internal *tss); 404151497Sru 405151497Sru/* The __sys_...msg variants allow MSG_CMSG_COMPAT iff 406151497Sru * forbid_cmsg_compat==false 407151497Sru */ 408151497Sruextern long __sys_recvmsg(int fd, struct user_msghdr __user *msg, 409151497Sru unsigned int flags, bool forbid_cmsg_compat); 410151497Sruextern long __sys_sendmsg(int fd, struct user_msghdr __user *msg, 411151497Sru unsigned int flags, bool forbid_cmsg_compat); 412151497Sruextern int __sys_recvmmsg(int fd, struct mmsghdr __user *mmsg, 413151497Sru unsigned int vlen, unsigned int flags, 414151497Sru struct __kernel_timespec __user *timeout, 415151497Sru struct old_timespec32 __user *timeout32); 416151497Sruextern int __sys_sendmmsg(int fd, struct mmsghdr __user *mmsg, 417151497Sru unsigned int vlen, unsigned int flags, 418151497Sru bool forbid_cmsg_compat); 419151497Sruextern long __sys_sendmsg_sock(struct socket *sock, struct msghdr *msg, 420151497Sru unsigned int flags); 421151497Sruextern long __sys_recvmsg_sock(struct socket *sock, struct msghdr *msg, 422151497Sru struct user_msghdr __user *umsg, 423151497Sru struct sockaddr __user *uaddr, 424151497Sru unsigned int flags); 425151497Sruextern int __copy_msghdr(struct msghdr *kmsg, 426151497Sru struct user_msghdr *umsg, 427151497Sru struct sockaddr __user **save_addr); 428151497Sru 429151497Sru/* helpers which do the actual work for syscalls */ 430151497Sruextern int __sys_recvfrom(int fd, void __user *ubuf, size_t size, 431151497Sru unsigned int flags, struct sockaddr __user *addr, 432151497Sru int __user *addr_len); 433151497Sruextern int __sys_sendto(int fd, void __user *buff, size_t len, 434151497Sru unsigned int flags, struct sockaddr __user *addr, 435151497Sru int addr_len); 436151497Sruextern struct file *do_accept(struct file *file, unsigned file_flags, 437151497Sru struct sockaddr __user *upeer_sockaddr, 438151497Sru int __user *upeer_addrlen, int flags); 439151497Sruextern int __sys_accept4(int fd, struct sockaddr __user *upeer_sockaddr, 440151497Sru int __user *upeer_addrlen, int flags); 441151497Sruextern int __sys_socket(int family, int type, int protocol); 442151497Sruextern struct file *__sys_socket_file(int family, int type, int protocol); 443151497Sruextern int __sys_bind(int fd, struct sockaddr __user *umyaddr, int addrlen); 444151497Sruextern int __sys_connect_file(struct file *file, struct sockaddr_storage *addr, 445151497Sru int addrlen, int file_flags); 446151497Sruextern int __sys_connect(int fd, struct sockaddr __user *uservaddr, 447151497Sru int addrlen); 448151497Sruextern int __sys_listen(int fd, int backlog); 449151497Sruextern int __sys_getsockname(int fd, struct sockaddr __user *usockaddr, 450151497Sru int __user *usockaddr_len); 451151497Sruextern int __sys_getpeername(int fd, struct sockaddr __user *usockaddr, 452151497Sru int __user *usockaddr_len); 453151497Sruextern int __sys_socketpair(int family, int type, int protocol, 454151497Sru int __user *usockvec); 455151497Sruextern int __sys_shutdown_sock(struct socket *sock, int how); 456151497Sruextern int __sys_shutdown(int fd, int how); 457151497Sru#endif /* _LINUX_SOCKET_H */ 458151497Sru