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#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 */
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(mhdr, cmsg) cmsg_nxthdr(mhdr, cmsg)
#define CMSG_ALIGN(len) ( ((len)+sizeof(long)-1) & ~(sizeof(long)-1) )
#define CMSG_DATA(cmsg) ((void *)(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(msg) ((msg)->msg_controllen >= sizeof(struct cmsghdr) ? \
(struct cmsghdr *)(msg)->msg_control : \
(struct cmsghdr *)NULL)
/*
* This mess will go away with glibc
*/
#ifdef __KERNEL__
#define KINLINE extern __inline__
#else
#define KINLINE static
#endif
/*
* Get the next cmsg header
*/
KINLINE struct cmsghdr * cmsg_nxthdr(struct msghdr *mhdr,
struct cmsghdr *cmsg)
{
unsigned char * ptr;
if (cmsg->cmsg_len < sizeof(struct cmsghdr))
{
return NULL;
}
ptr = ((unsigned char *) cmsg) + CMSG_ALIGN(cmsg->cmsg_len);
if (ptr >= (unsigned char *) mhdr->msg_control + mhdr->msg_controllen)
return NULL;
return (struct cmsghdr *) ptr;
}
/* "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
{
__kernel_pid_t pid;
__kernel_uid_t uid;
__kernel_gid_t 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_AAL5 8 /* Reserved for Werner's ATM */
#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 pseudo_AF_KEY 15 /* PF_KEY key management API */
#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_AAL5 AF_AAL5
#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 pseudo_AF_KEY
#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_CTRUNC 8
#define MSG_PROXY 0x10 /* Supply or ask second address. */
#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_URG 0x800
#define MSG_RST 0x1000
#define MSG_CTLIGNORE 0x80000000
#define MSG_EOF MSG_FIN
#define MSG_CTLFLAGS (MSG_OOB|MSG_URG|MSG_FIN|MSG_SYN|MSG_RST)
/* Setsockoptions(2) level. Thanks to BSD these must match IPPROTO_xxx */
#define SOL_IP 0
#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_TCP 6
#define SOL_UDP 17
/* IPX options */
#define IPX_TYPE 1
/* TCP options - this way around because someone left a set in the c library includes */
#define TCP_NODELAY 1
#define TCP_MAXSEG 2
/* The various priorities. */
#define SOPRI_INTERACTIVE 0
#define SOPRI_NORMAL 1
#define SOPRI_BACKGROUND 2
#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 unsigned int csum_partial_copy_fromiovecend(unsigned char *kdata,
struct iovec *iov,
int offset,
int len, int csum);
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 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 void put_cmsg(struct msghdr*, int level, int type, int len, void *data);
#endif
#endif /* _LINUX_SOCKET_H */
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