Release 4.12 include/linux/socket.h
#ifndef _LINUX_SOCKET_H
#define _LINUX_SOCKET_H
#include <asm/socket.h> /* arch-dependent defines */
#include <linux/sockios.h> /* the SIOCxxx I/O controls */
#include <linux/uio.h> /* iovec support */
#include <linux/types.h> /* pid_t */
#include <linux/compiler.h> /* __user */
#include <uapi/linux/socket.h>
struct pid;
struct cred;
#define __sockaddr_check_size(size) \
BUILD_BUG_ON(((size) > sizeof(struct __kernel_sockaddr_storage)))
#ifdef CONFIG_PROC_FS
struct seq_file;
extern void socket_seq_show(struct seq_file *seq);
#endif
typedef __kernel_sa_family_t sa_family_t;
/*
* 1003.1g requires sa_family_t and that sa_data is char.
*/
struct sockaddr {
sa_family_t sa_family; /* address family, AF_xxx */
char sa_data[14]; /* 14 bytes of protocol address */
};
struct linger {
int l_onoff; /* Linger active */
int l_linger; /* How long to linger for */
};
#define sockaddr_storage __kernel_sockaddr_storage
/*
* As we do 4.4BSD message passing we use a 4.4BSD message passing
* system, not 4.3. Thus msg_accrights(len) are now missing. They
* belong in an obscure libc emulation or the bin.
*/
struct msghdr {
void *msg_name; /* ptr to socket address structure */
int msg_namelen; /* size of socket address structure */
struct iov_iter msg_iter; /* data */
void *msg_control; /* ancillary data */
__kernel_size_t msg_controllen; /* ancillary data buffer length */
unsigned int msg_flags; /* flags on received message */
struct kiocb *msg_iocb; /* ptr to iocb for async requests */
};
struct user_msghdr {
void __user *msg_name; /* ptr to socket address structure */
int msg_namelen; /* size of socket address structure */
struct iovec __user *msg_iov; /* scatter/gather array */
__kernel_size_t msg_iovlen; /* # elements in msg_iov */
void __user *msg_control; /* ancillary data */
__kernel_size_t msg_controllen; /* ancillary data buffer length */
unsigned int msg_flags; /* flags on received message */
};
/* For recvmmsg/sendmmsg */
struct mmsghdr {
struct user_msghdr msg_hdr;
unsigned int msg_len;
};
/*
* POSIX 1003.1g - ancillary data object information
* Ancillary data consits of a sequence of pairs of
* (cmsghdr, cmsg_data[])
*/
struct cmsghdr {
__kernel_size_t cmsg_len; /* data byte count, including hdr */
int cmsg_level; /* originating protocol */
int cmsg_type; /* protocol-specific type */
};
/*
* Ancillary data object information MACROS
* Table 5-14 of POSIX 1003.1g
*/
#define __CMSG_NXTHDR(ctl, len, cmsg) __cmsg_nxthdr((ctl),(len),(cmsg))
#define CMSG_NXTHDR(mhdr, cmsg) cmsg_nxthdr((mhdr), (cmsg))
#define CMSG_ALIGN(len) ( ((len)+sizeof(long)-1) & ~(sizeof(long)-1) )
#define CMSG_DATA(cmsg) ((void *)((char *)(cmsg) + sizeof(struct cmsghdr)))
#define CMSG_SPACE(len) (sizeof(struct cmsghdr) + CMSG_ALIGN(len))
#define CMSG_LEN(len) (sizeof(struct cmsghdr) + (len))
#define __CMSG_FIRSTHDR(ctl,len) ((len) >= sizeof(struct cmsghdr) ? \
(struct cmsghdr *)(ctl) : \
(struct cmsghdr *)NULL)
#define CMSG_FIRSTHDR(msg) __CMSG_FIRSTHDR((msg)->msg_control, (msg)->msg_controllen)
#define CMSG_OK(mhdr, cmsg) ((cmsg)->cmsg_len >= sizeof(struct cmsghdr) && \
(cmsg)->cmsg_len <= (unsigned long) \
((mhdr)->msg_controllen - \
((char *)(cmsg) - (char *)(mhdr)->msg_control)))
#define for_each_cmsghdr(cmsg, msg) \
for (cmsg = CMSG_FIRSTHDR(msg); \
cmsg; \
cmsg = CMSG_NXTHDR(msg, cmsg))
/*
* Get the next cmsg header
*
* PLEASE, do not touch this function. If you think, that it is
* incorrect, grep kernel sources and think about consequences
* before trying to improve it.
*
* Now it always returns valid, not truncated ancillary object
* HEADER. But caller still MUST check, that cmsg->cmsg_len is
* inside range, given by msg->msg_controllen before using
* ancillary object DATA. --ANK (980731)
*/
static inline struct cmsghdr * __cmsg_nxthdr(void *__ctl, __kernel_size_t __size,
struct cmsghdr *__cmsg)
{
struct cmsghdr * __ptr;
__ptr = (struct cmsghdr*)(((unsigned char *) __cmsg) + CMSG_ALIGN(__cmsg->cmsg_len));
if ((unsigned long)((char*)(__ptr+1) - (char *) __ctl) > __size)
return (struct cmsghdr *)0;
return __ptr;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Linus Torvalds (pre-git) | 86 | 97.73% | 7 | 87.50% |
| Ben Hutchings | 2 | 2.27% | 1 | 12.50% |
| Total | 88 | 100.00% | 8 | 100.00% |
static inline struct cmsghdr * cmsg_nxthdr (struct msghdr *__msg, struct cmsghdr *__cmsg)
{
return __cmsg_nxthdr(__msg->msg_control, __msg->msg_controllen, __cmsg);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Linus Torvalds (pre-git) | 31 | 93.94% | 2 | 66.67% |
| Ben Hutchings | 2 | 6.06% | 1 | 33.33% |
| Total | 33 | 100.00% | 3 | 100.00% |
static inline size_t msg_data_left(struct msghdr *msg)
{
return iov_iter_count(&msg->msg_iter);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Al Viro | 21 | 100.00% | 1 | 100.00% |
| Total | 21 | 100.00% | 1 | 100.00% |
/* "Socket"-level control message types: */
#define SCM_RIGHTS 0x01
/* rw: access rights (array of int) */
#define SCM_CREDENTIALS 0x02
/* rw: struct ucred */
#define SCM_SECURITY 0x03
/* rw: security label */
struct ucred {
__u32 pid;
__u32 uid;
__u32 gid;
};
/* Supported address families. */
#define AF_UNSPEC 0
#define AF_UNIX 1
/* Unix domain sockets */
#define AF_LOCAL 1
/* POSIX name for AF_UNIX */
#define AF_INET 2
/* Internet IP Protocol */
#define AF_AX25 3
/* Amateur Radio AX.25 */
#define AF_IPX 4
/* Novell IPX */
#define AF_APPLETALK 5
/* AppleTalk DDP */
#define AF_NETROM 6
/* Amateur Radio NET/ROM */
#define AF_BRIDGE 7
/* Multiprotocol bridge */
#define AF_ATMPVC 8
/* ATM PVCs */
#define AF_X25 9
/* Reserved for X.25 project */
#define AF_INET6 10
/* IP version 6 */
#define AF_ROSE 11
/* Amateur Radio X.25 PLP */
#define AF_DECnet 12
/* Reserved for DECnet project */
#define AF_NETBEUI 13
/* Reserved for 802.2LLC project*/
#define AF_SECURITY 14
/* Security callback pseudo AF */
#define AF_KEY 15
/* PF_KEY key management API */
#define AF_NETLINK 16
#define AF_ROUTE AF_NETLINK
/* Alias to emulate 4.4BSD */
#define AF_PACKET 17
/* Packet family */
#define AF_ASH 18
/* Ash */
#define AF_ECONET 19
/* Acorn Econet */
#define AF_ATMSVC 20
/* ATM SVCs */
#define AF_RDS 21
/* RDS sockets */
#define AF_SNA 22
/* Linux SNA Project (nutters!) */
#define AF_IRDA 23
/* IRDA sockets */
#define AF_PPPOX 24
/* PPPoX sockets */
#define AF_WANPIPE 25
/* Wanpipe API Sockets */
#define AF_LLC 26
/* Linux LLC */
#define AF_IB 27
/* Native InfiniBand address */
#define AF_MPLS 28
/* MPLS */
#define AF_CAN 29
/* Controller Area Network */
#define AF_TIPC 30
/* TIPC sockets */
#define AF_BLUETOOTH 31
/* Bluetooth sockets */
#define AF_IUCV 32
/* IUCV sockets */
#define AF_RXRPC 33
/* RxRPC sockets */
#define AF_ISDN 34
/* mISDN sockets */
#define AF_PHONET 35
/* Phonet sockets */
#define AF_IEEE802154 36
/* IEEE802154 sockets */
#define AF_CAIF 37
/* CAIF sockets */
#define AF_ALG 38
/* Algorithm sockets */
#define AF_NFC 39
/* NFC sockets */
#define AF_VSOCK 40
/* vSockets */
#define AF_KCM 41
/* Kernel Connection Multiplexor*/
#define AF_QIPCRTR 42
/* Qualcomm IPC Router */
#define AF_SMC 43
/* smc sockets: reserve number for
* PF_SMC protocol family that
* reuses AF_INET address family
*/
#define AF_MAX 44
/* For now.. */
/* Protocol families, same as address families. */
#define PF_UNSPEC AF_UNSPEC
#define PF_UNIX AF_UNIX
#define PF_LOCAL AF_LOCAL
#define PF_INET AF_INET
#define PF_AX25 AF_AX25
#define PF_IPX AF_IPX
#define PF_APPLETALK AF_APPLETALK
#define PF_NETROM AF_NETROM
#define PF_BRIDGE AF_BRIDGE
#define PF_ATMPVC AF_ATMPVC
#define PF_X25 AF_X25
#define PF_INET6 AF_INET6
#define PF_ROSE AF_ROSE
#define PF_DECnet AF_DECnet
#define PF_NETBEUI AF_NETBEUI
#define PF_SECURITY AF_SECURITY
#define PF_KEY AF_KEY
#define PF_NETLINK AF_NETLINK
#define PF_ROUTE AF_ROUTE
#define PF_PACKET AF_PACKET
#define PF_ASH AF_ASH
#define PF_ECONET AF_ECONET
#define PF_ATMSVC AF_ATMSVC
#define PF_RDS AF_RDS
#define PF_SNA AF_SNA
#define PF_IRDA AF_IRDA
#define PF_PPPOX AF_PPPOX
#define PF_WANPIPE AF_WANPIPE
#define PF_LLC AF_LLC
#define PF_IB AF_IB
#define PF_MPLS AF_MPLS
#define PF_CAN AF_CAN
#define PF_TIPC AF_TIPC
#define PF_BLUETOOTH AF_BLUETOOTH
#define PF_IUCV AF_IUCV
#define PF_RXRPC AF_RXRPC
#define PF_ISDN AF_ISDN
#define PF_PHONET AF_PHONET
#define PF_IEEE802154 AF_IEEE802154
#define PF_CAIF AF_CAIF
#define PF_ALG AF_ALG
#define PF_NFC AF_NFC
#define PF_VSOCK AF_VSOCK
#define PF_KCM AF_KCM
#define PF_QIPCRTR AF_QIPCRTR
#define PF_SMC AF_SMC
#define PF_MAX AF_MAX
/* Maximum queue length specifiable by listen. */
#define SOMAXCONN 128
/* Flags we can use with send/ and recv.
Added those for 1003.1g not all are supported yet
*/
#define MSG_OOB 1
#define MSG_PEEK 2
#define MSG_DONTROUTE 4
#define MSG_TRYHARD 4
/* Synonym for MSG_DONTROUTE for DECnet */
#define MSG_CTRUNC 8
#define MSG_PROBE 0x10
/* Do not send. Only probe path f.e. for MTU */
#define MSG_TRUNC 0x20
#define MSG_DONTWAIT 0x40
/* Nonblocking io */
#define MSG_EOR 0x80
/* End of record */
#define MSG_WAITALL 0x100
/* Wait for a full request */
#define MSG_FIN 0x200
#define MSG_SYN 0x400
#define MSG_CONFIRM 0x800
/* Confirm path validity */
#define MSG_RST 0x1000
#define MSG_ERRQUEUE 0x2000
/* Fetch message from error queue */
#define MSG_NOSIGNAL 0x4000
/* Do not generate SIGPIPE */
#define MSG_MORE 0x8000
/* Sender will send more */
#define MSG_WAITFORONE 0x10000
/* recvmmsg(): block until 1+ packets avail */
#define MSG_SENDPAGE_NOTLAST 0x20000
/* sendpage() internal : not the last page */
#define MSG_BATCH 0x40000
/* sendmmsg(): more messages coming */
#define MSG_EOF MSG_FIN
#define MSG_FASTOPEN 0x20000000
/* Send data in TCP SYN */
#define MSG_CMSG_CLOEXEC 0x40000000
/* Set close_on_exec for file
descriptor received through
SCM_RIGHTS */
#if defined(CONFIG_COMPAT)
#define MSG_CMSG_COMPAT 0x80000000
/* This message needs 32 bit fixups */
#else
#define MSG_CMSG_COMPAT 0
/* We never have 32 bit fixups */
#endif
/* Setsockoptions(2) level. Thanks to BSD these must match IPPROTO_xxx */
#define SOL_IP 0
/* #define SOL_ICMP 1 No-no-no! Due to Linux :-) we cannot use SOL_ICMP=1 */
#define SOL_TCP 6
#define SOL_UDP 17
#define SOL_IPV6 41
#define SOL_ICMPV6 58
#define SOL_SCTP 132
#define SOL_UDPLITE 136
/* UDP-Lite (RFC 3828) */
#define SOL_RAW 255
#define SOL_IPX 256
#define SOL_AX25 257
#define SOL_ATALK 258
#define SOL_NETROM 259
#define SOL_ROSE 260
#define SOL_DECNET 261
#define SOL_X25 262
#define SOL_PACKET 263
#define SOL_ATM 264
/* ATM layer (cell level) */
#define SOL_AAL 265
/* ATM Adaption Layer (packet level) */
#define SOL_IRDA 266
#define SOL_NETBEUI 267
#define SOL_LLC 268
#define SOL_DCCP 269
#define SOL_NETLINK 270
#define SOL_TIPC 271
#define SOL_RXRPC 272
#define SOL_PPPOL2TP 273
#define SOL_BLUETOOTH 274
#define SOL_PNPIPE 275
#define SOL_RDS 276
#define SOL_IUCV 277
#define SOL_CAIF 278
#define SOL_ALG 279
#define SOL_NFC 280
#define SOL_KCM 281
/* IPX options */
#define IPX_TYPE 1
extern int move_addr_to_kernel(void __user *uaddr, int ulen, struct sockaddr_storage *kaddr);
extern int put_cmsg(struct msghdr*, int level, int type, int len, void *data);
struct timespec;
/* The __sys_...msg variants allow MSG_CMSG_COMPAT */
extern long __sys_recvmsg(int fd, struct user_msghdr __user *msg, unsigned flags);
extern long __sys_sendmsg(int fd, struct user_msghdr __user *msg, unsigned flags);
extern int __sys_recvmmsg(int fd, struct mmsghdr __user *mmsg, unsigned int vlen,
unsigned int flags, struct timespec *timeout);
extern int __sys_sendmmsg(int fd, struct mmsghdr __user *mmsg,
unsigned int vlen, unsigned int flags);
#endif /* _LINUX_SOCKET_H */
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Linus Torvalds (pre-git) | 742 | 57.08% | 49 | 44.14% |
| Al Viro | 68 | 5.23% | 3 | 2.70% |
| Arnaldo Carvalho de Melo | 64 | 4.92% | 3 | 2.70% |
| Linus Torvalds | 45 | 3.46% | 4 | 3.60% |
| Andrew Lutomirski | 33 | 2.54% | 1 | 0.90% |
| Anton Blanchard | 22 | 1.69% | 1 | 0.90% |
| Herbert Xu | 22 | 1.69% | 2 | 1.80% |
| Benjamin LaHaise | 20 | 1.54% | 1 | 0.90% |
| Tom Herbert | 18 | 1.38% | 2 | 1.80% |
| David Howells | 16 | 1.23% | 2 | 1.80% |
| Eric W. Biedermann | 15 | 1.15% | 2 | 1.80% |
| Andy Grover | 13 | 1.00% | 1 | 0.90% |
| Sjur Brændeland | 13 | 1.00% | 1 | 0.90% |
| Rémi Denis-Courmont | 13 | 1.00% | 2 | 1.80% |
| Per Liden | 13 | 1.00% | 1 | 0.90% |
| Gu Zheng | 10 | 0.77% | 1 | 0.90% |
| Ursula Braun | 10 | 0.77% | 1 | 0.90% |
| Courtney Cavin | 9 | 0.69% | 1 | 0.90% |
| Karsten Keil | 9 | 0.69% | 1 | 0.90% |
| Sean Hefty | 9 | 0.69% | 1 | 0.90% |
| Andy King | 9 | 0.69% | 1 | 0.90% |
| Aloisio Almeida Jr | 9 | 0.69% | 1 | 0.90% |
| Oliver Hartkopp | 9 | 0.69% | 1 | 0.90% |
| Jennifer Hunt | 9 | 0.69% | 1 | 0.90% |
| Sergey Lapin | 9 | 0.69% | 1 | 0.90% |
| Cyrill V. Gorcunov | 8 | 0.62% | 1 | 0.90% |
| Eric Dumazet | 7 | 0.54% | 2 | 1.80% |
| Tadeusz Struk | 6 | 0.46% | 1 | 0.90% |
| Brandon L Black | 5 | 0.38% | 1 | 0.90% |
| Gerrit Renker | 5 | 0.38% | 1 | 0.90% |
| François-Xavier Le Bail | 5 | 0.38% | 1 | 0.90% |
| Catherine Zhang | 5 | 0.38% | 1 | 0.90% |
| Yuchung Cheng | 5 | 0.38% | 1 | 0.90% |
| Ulrich Drepper | 4 | 0.31% | 1 | 0.90% |
| Patrick McHardy | 4 | 0.31% | 1 | 0.90% |
| Jon Grimm | 4 | 0.31% | 1 | 0.90% |
| Ben Hutchings | 4 | 0.31% | 1 | 0.90% |
| James Chapman | 4 | 0.31% | 1 | 0.90% |
| Hendrik Brueckner | 4 | 0.31% | 1 | 0.90% |
| Marcel Holtmann | 4 | 0.31% | 1 | 0.90% |
| Samuel Ortiz | 4 | 0.31% | 1 | 0.90% |
| yuan linyu | 3 | 0.23% | 1 | 0.90% |
| Bruce W Allan | 3 | 0.23% | 1 | 0.90% |
| Hideaki Yoshifuji / 吉藤英明 | 2 | 0.15% | 2 | 1.80% |
| Rasmus Villemoes | 1 | 0.08% | 1 | 0.90% |
| David S. Miller | 1 | 0.08% | 1 | 0.90% |
| Lucas De Marchi | 1 | 0.08% | 1 | 0.90% |
| Olaf Hering | 1 | 0.08% | 1 | 0.90% |
| Maciej Żenczykowski | 1 | 0.08% | 1 | 0.90% |
| Total | 1300 | 100.00% | 111 | 100.00% |
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