socket.h
上传用户:jlfgdled
上传日期:2013-04-10
资源大小:33168k
文件大小:8k
- #ifndef _LINUX_SOCKET_H
- #define _LINUX_SOCKET_H
- #if defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2)
- #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 */
- 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 */
- };
- /*
- * 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;
- };
- /*
- * 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)
- /*
- * This mess will go away with glibc
- */
-
- #ifdef __KERNEL__
- #define __KINLINE static inline
- #elif defined(__GNUC__)
- #define __KINLINE static __inline__
- #elif defined(__cplusplus)
- #define __KINLINE static inline
- #else
- #define __KINLINE static
- #endif
- /*
- * 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
- * ansillary object DATA. --ANK (980731)
- */
-
- __KINLINE 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;
- }
- __KINLINE 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_CONNECT 0x03 /* rw: struct scm_connect */
- 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_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_BLUETOOTH 31 /* Bluetooth sockets */
- #define AF_MAX 32 /* 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_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_BLUETOOTH AF_BLUETOOTH
- #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_EOF MSG_FIN
- /* 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_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
- /* IPX options */
- #define IPX_TYPE 1
- #ifdef __KERNEL__
- extern int memcpy_fromiovec(unsigned char *kdata, struct iovec *iov, int len);
- extern int memcpy_fromiovecend(unsigned char *kdata, struct iovec *iov,
- int offset, int len);
- extern int csum_partial_copy_fromiovecend(unsigned char *kdata,
- struct iovec *iov,
- int offset,
- unsigned int len, int *csump);
- extern int verify_iovec(struct msghdr *m, struct iovec *iov, char *address, int mode);
- extern int memcpy_toiovec(struct iovec *v, unsigned char *kdata, int len);
- extern void memcpy_tokerneliovec(struct iovec *iov, unsigned char *kdata, int len);
- extern int move_addr_to_user(void *kaddr, int klen, void *uaddr, int *ulen);
- extern int move_addr_to_kernel(void *uaddr, int ulen, void *kaddr);
- extern int put_cmsg(struct msghdr*, int level, int type, int len, void *data);
- #endif
- #endif /* not kernel and not glibc */
- #endif /* _LINUX_SOCKET_H */