| #ifndef _LINUX_SOCKET_H |
| #define _LINUX_SOCKET_H |
| |
| /* |
| * Desired design of maximum size and alignment (see RFC2553) |
| */ |
| #define _K_SS_MAXSIZE 128 /* Implementation specific max size */ |
| #define _K_SS_ALIGNSIZE (__alignof__ (struct sockaddr *)) |
| /* Implementation specific desired alignment */ |
| |
| struct __kernel_sockaddr_storage { |
| unsigned short ss_family; /* address family */ |
| /* Following field(s) are implementation specific */ |
| char __data[_K_SS_MAXSIZE - sizeof(unsigned short)]; |
| /* space to achieve desired size, */ |
| /* _SS_MAXSIZE value minus size of ss_family */ |
| } __attribute__ ((aligned(_K_SS_ALIGNSIZE))); /* force desired alignment */ |
| |
| #ifdef __KERNEL__ |
| |
| #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 */ |
| |
| struct pid; |
| struct cred; |
| |
| #define __sockaddr_check_size(size) \ |
| BUILD_BUG_ON(((size) > sizeof(struct __kernel_sockaddr_storage))) |
| |
| #ifdef __KERNEL__ |
| # ifdef CONFIG_PROC_FS |
| struct seq_file; |
| extern void socket_seq_show(struct seq_file *seq); |
| # endif |
| #endif /* __KERNEL__ */ |
| |
| typedef unsigned short 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; /* Socket name */ |
| int msg_namelen; /* Length of name */ |
| struct iovec * msg_iov; /* Data blocks */ |
| __kernel_size_t msg_iovlen; /* Number of blocks */ |
| void * msg_control; /* Per protocol magic (eg BSD file descriptor passing) */ |
| __kernel_size_t msg_controllen; /* Length of cmsg list */ |
| unsigned msg_flags; |
| }; |
| |
| /* For recvmmsg/sendmmsg */ |
| struct mmsghdr { |
| struct msghdr msg_hdr; |
| unsigned 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 */ |
| }; |
| |
| /* |
| * Ancilliary 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) + CMSG_ALIGN(sizeof(struct cmsghdr)))) |
| #define CMSG_SPACE(len) (CMSG_ALIGN(sizeof(struct cmsghdr)) + CMSG_ALIGN(len)) |
| #define CMSG_LEN(len) (CMSG_ALIGN(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))) |
| |
| /* |
| * 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; |
| } |
| |
| static inline struct cmsghdr * cmsg_nxthdr (struct msghdr *__msg, struct cmsghdr *__cmsg) |
| { |
| return __cmsg_nxthdr(__msg->msg_control, __msg->msg_controllen, __cmsg); |
| } |
| |
| /* "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_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_MAX 38 /* 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_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_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_EOF MSG_FIN |
| |
| #define MSG_CMSG_CLOEXEC 0x40000000 /* Set close_on_exit 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 |
| |
| /* IPX options */ |
| #define IPX_TYPE 1 |
| |
| #ifdef __KERNEL__ |
| extern void cred_to_ucred(struct pid *pid, const struct cred *cred, struct ucred *ucred); |
| |
| extern int memcpy_fromiovec(unsigned char *kdata, struct iovec *iov, int len); |
| extern int memcpy_fromiovecend(unsigned char *kdata, const struct iovec *iov, |
| int offset, int len); |
| extern int csum_partial_copy_fromiovecend(unsigned char *kdata, |
| struct iovec *iov, |
| int offset, |
| unsigned int len, __wsum *csump); |
| |
| extern int verify_iovec(struct msghdr *m, struct iovec *iov, struct sockaddr *address, int mode); |
| extern int memcpy_toiovec(struct iovec *v, unsigned char *kdata, int len); |
| extern int memcpy_toiovecend(const struct iovec *v, unsigned char *kdata, |
| int offset, int len); |
| extern int move_addr_to_user(struct sockaddr *kaddr, int klen, void __user *uaddr, int __user *ulen); |
| extern int move_addr_to_kernel(void __user *uaddr, int ulen, struct sockaddr *kaddr); |
| extern int put_cmsg(struct msghdr*, int level, int type, int len, void *data); |
| |
| struct timespec; |
| |
| extern int __sys_recvmmsg(int fd, struct mmsghdr __user *mmsg, unsigned int vlen, |
| unsigned int flags, struct timespec *timeout); |
| #endif |
| #endif /* not kernel and not glibc */ |
| #endif /* _LINUX_SOCKET_H */ |