arch/sparc64/solaris/socket.c - kernel/msm-4.9 - Gitiles

 /* $Id: socket.c,v 1.6 2002/02/08 03:57:14 davem Exp $
  * socket.c: Socket syscall emulation for Solaris 2.6+
  *
  * Copyright (C) 1998 Jakub Jelinek (jj@ultra.linux.cz)
  *
  * 1999-08-19 Fixed socketpair code
  *            Jason Rappleye (rappleye@ccr.buffalo.edu)
  */

 #include <linux/types.h>
 #include <linux/mm.h>
 #include <linux/slab.h>
 #include <linux/socket.h>
 #include <linux/file.h>
 #include <linux/net.h>
 #include <linux/compat.h>
 #include <net/compat.h>
 #include <net/sock.h>

 #include <asm/uaccess.h>
 #include <asm/string.h>
 #include <asm/oplib.h>
 #include <asm/idprom.h>

 #include "conv.h"

 #define SOCK_SOL_STREAM		2
 #define SOCK_SOL_DGRAM		1
 #define SOCK_SOL_RAW		4
 #define SOCK_SOL_RDM		5
 #define SOCK_SOL_SEQPACKET	6

 #define SOL_SO_SNDLOWAT		0x1003
 #define SOL_SO_RCVLOWAT		0x1004
 #define SOL_SO_SNDTIMEO		0x1005
 #define SOL_SO_RCVTIMEO		0x1006
 #define SOL_SO_STATE		0x2000

 #define SOL_SS_NDELAY		0x040
 #define SOL_SS_NONBLOCK		0x080
 #define SOL_SS_ASYNC		0x100

 #define SO_STATE		0x000e

 static int socket_check(int family, int type)
 {
 	if (family != PF_UNIX && family != PF_INET)
 		return -ESOCKTNOSUPPORT;
 	switch (type) {
 	case SOCK_SOL_STREAM: type = SOCK_STREAM; break;
 	case SOCK_SOL_DGRAM: type = SOCK_DGRAM; break;
 	case SOCK_SOL_RAW: type = SOCK_RAW; break;
 	case SOCK_SOL_RDM: type = SOCK_RDM; break;
 	case SOCK_SOL_SEQPACKET: type = SOCK_SEQPACKET; break;
 	default: return -EINVAL;
 	}
 	return type;
 }

 static int solaris_to_linux_sockopt(int optname)
 {
 	switch (optname) {
 	case SOL_SO_SNDLOWAT: optname = SO_SNDLOWAT; break;
 	case SOL_SO_RCVLOWAT: optname = SO_RCVLOWAT; break;
 	case SOL_SO_SNDTIMEO: optname = SO_SNDTIMEO; break;
 	case SOL_SO_RCVTIMEO: optname = SO_RCVTIMEO; break;
 	case SOL_SO_STATE: optname = SO_STATE; break;
 	};

 	return optname;
 }

 asmlinkage int solaris_socket(int family, int type, int protocol)
 {
 	int (*sys_socket)(int, int, int) =
 		(int (*)(int, int, int))SYS(socket);

 	type = socket_check (family, type);
 	if (type < 0) return type;
 	return sys_socket(family, type, protocol);
 }

 asmlinkage int solaris_socketpair(int *usockvec)
 {
 	int (*sys_socketpair)(int, int, int, int *) =
 		(int (*)(int, int, int, int *))SYS(socketpair);

 	/* solaris socketpair really only takes one arg at the syscall
 	 * level, int * usockvec. The libs apparently take care of
 	 * making sure that family==AF_UNIX and type==SOCK_STREAM. The
 	 * pointer we really want ends up residing in the first (and
 	 * supposedly only) argument.
 	 */

 	return sys_socketpair(AF_UNIX, SOCK_STREAM, 0, (int *)usockvec);
 }

 asmlinkage int solaris_bind(int fd, struct sockaddr *addr, int addrlen)
 {
 	int (*sys_bind)(int, struct sockaddr *, int) =
 		(int (*)(int, struct sockaddr *, int))SUNOS(104);

 	return sys_bind(fd, addr, addrlen);
 }

 asmlinkage int solaris_setsockopt(int fd, int level, int optname, u32 optval, int optlen)
 {
 	int (*sunos_setsockopt)(int, int, int, u32, int) =
 		(int (*)(int, int, int, u32, int))SUNOS(105);

 	optname = solaris_to_linux_sockopt(optname);
 	if (optname < 0)
 		return optname;
 	if (optname == SO_STATE)
 		return 0;

 	return sunos_setsockopt(fd, level, optname, optval, optlen);
 }

 asmlinkage int solaris_getsockopt(int fd, int level, int optname, u32 optval, u32 optlen)
 {
 	int (*sunos_getsockopt)(int, int, int, u32, u32) =
 		(int (*)(int, int, int, u32, u32))SUNOS(118);

 	optname = solaris_to_linux_sockopt(optname);
 	if (optname < 0)
 		return optname;

 	if (optname == SO_STATE)
 		optname = SOL_SO_STATE;

 	return sunos_getsockopt(fd, level, optname, optval, optlen);
 }

 asmlinkage int solaris_connect(int fd, struct sockaddr __user *addr, int addrlen)
 {
 	int (*sys_connect)(int, struct sockaddr __user *, int) =
 		(int (*)(int, struct sockaddr __user *, int))SYS(connect);

 	return sys_connect(fd, addr, addrlen);
 }

 asmlinkage int solaris_accept(int fd, struct sockaddr __user *addr, int __user *addrlen)
 {
 	int (*sys_accept)(int, struct sockaddr __user *, int __user *) =
 		(int (*)(int, struct sockaddr __user *, int __user *))SYS(accept);

 	return sys_accept(fd, addr, addrlen);
 }

 asmlinkage int solaris_listen(int fd, int backlog)
 {
 	int (*sys_listen)(int, int) =
 		(int (*)(int, int))SUNOS(106);

 	return sys_listen(fd, backlog);
 }

 asmlinkage int solaris_shutdown(int fd, int how)
 {
 	int (*sys_shutdown)(int, int) =
 		(int (*)(int, int))SYS(shutdown);

 	return sys_shutdown(fd, how);
 }

 #define MSG_SOL_OOB		0x1
 #define MSG_SOL_PEEK		0x2
 #define MSG_SOL_DONTROUTE	0x4
 #define MSG_SOL_EOR		0x8
 #define MSG_SOL_CTRUNC		0x10
 #define MSG_SOL_TRUNC		0x20
 #define MSG_SOL_WAITALL		0x40
 #define MSG_SOL_DONTWAIT	0x80

 static int solaris_to_linux_msgflags(int flags)
 {
 	int fl = flags & (MSG_OOB|MSG_PEEK|MSG_DONTROUTE);

 	if (flags & MSG_SOL_EOR) fl |= MSG_EOR;
 	if (flags & MSG_SOL_CTRUNC) fl |= MSG_CTRUNC;
 	if (flags & MSG_SOL_TRUNC) fl |= MSG_TRUNC;
 	if (flags & MSG_SOL_WAITALL) fl |= MSG_WAITALL;
 	if (flags & MSG_SOL_DONTWAIT) fl |= MSG_DONTWAIT;
 	return fl;
 }

 static int linux_to_solaris_msgflags(int flags)
 {
 	int fl = flags & (MSG_OOB|MSG_PEEK|MSG_DONTROUTE);

 	if (flags & MSG_EOR) fl |= MSG_SOL_EOR;
 	if (flags & MSG_CTRUNC) fl |= MSG_SOL_CTRUNC;
 	if (flags & MSG_TRUNC) fl |= MSG_SOL_TRUNC;
 	if (flags & MSG_WAITALL) fl |= MSG_SOL_WAITALL;
 	if (flags & MSG_DONTWAIT) fl |= MSG_SOL_DONTWAIT;
 	return fl;
 }

 asmlinkage int solaris_recvfrom(int s, char __user *buf, int len, int flags, u32 from, u32 fromlen)
 {
 	int (*sys_recvfrom)(int, void __user *, size_t, unsigned, struct sockaddr __user *, int __user *) =
 		(int (*)(int, void __user *, size_t, unsigned, struct sockaddr __user *, int __user *))SYS(recvfrom);

 	return sys_recvfrom(s, buf, len, solaris_to_linux_msgflags(flags), A(from), A(fromlen));
 }

 asmlinkage int solaris_recv(int s, char __user *buf, int len, int flags)
 {
 	int (*sys_recvfrom)(int, void __user *, size_t, unsigned, struct sockaddr __user *, int __user *) =
 		(int (*)(int, void __user *, size_t, unsigned, struct sockaddr __user *, int __user *))SYS(recvfrom);

 	return sys_recvfrom(s, buf, len, solaris_to_linux_msgflags(flags), NULL, NULL);
 }

 asmlinkage int solaris_sendto(int s, char __user *buf, int len, int flags, u32 to, u32 tolen)
 {
 	int (*sys_sendto)(int, void __user *, size_t, unsigned, struct sockaddr __user *, int __user *) =
 		(int (*)(int, void __user *, size_t, unsigned, struct sockaddr __user *, int __user *))SYS(sendto);

 	return sys_sendto(s, buf, len, solaris_to_linux_msgflags(flags), A(to), A(tolen));
 }

 asmlinkage int solaris_send(int s, char *buf, int len, int flags)
 {
 	int (*sys_sendto)(int, void *, size_t, unsigned, struct sockaddr *, int *) =
 		(int (*)(int, void *, size_t, unsigned, struct sockaddr *, int *))SYS(sendto);

 	return sys_sendto(s, buf, len, solaris_to_linux_msgflags(flags), NULL, NULL);
 }

 asmlinkage int solaris_getpeername(int fd, struct sockaddr *addr, int *addrlen)
 {
 	int (*sys_getpeername)(int, struct sockaddr *, int *) =
 		(int (*)(int, struct sockaddr *, int *))SYS(getpeername);

 	return sys_getpeername(fd, addr, addrlen);
 }

 asmlinkage int solaris_getsockname(int fd, struct sockaddr *addr, int *addrlen)
 {
 	int (*sys_getsockname)(int, struct sockaddr *, int *) =
 		(int (*)(int, struct sockaddr *, int *))SYS(getsockname);

 	return sys_getsockname(fd, addr, addrlen);
 }

 /* XXX This really belongs in some header file... -DaveM */
 #define MAX_SOCK_ADDR	128		/* 108 for Unix domain -
 					   16 for IP, 16 for IPX,
 					   24 for IPv6,
 					   about 80 for AX.25 */

 struct sol_nmsghdr {
 	u32		msg_name;
 	int		msg_namelen;
 	u32		msg_iov;
 	u32		msg_iovlen;
 	u32		msg_control;
 	u32		msg_controllen;
 	u32		msg_flags;
 };

 struct sol_cmsghdr {
 	u32		cmsg_len;
 	int		cmsg_level;
 	int		cmsg_type;
 	unsigned char	cmsg_data[0];
 };

 static inline int msghdr_from_user32_to_kern(struct msghdr *kmsg,
 					     struct sol_nmsghdr __user *umsg)
 {
 	u32 tmp1, tmp2, tmp3;
 	int err;

 	err = get_user(tmp1, &umsg->msg_name);
 	err |= __get_user(tmp2, &umsg->msg_iov);
 	err |= __get_user(tmp3, &umsg->msg_control);
 	if (err)
 		return -EFAULT;

 	kmsg->msg_name = A(tmp1);
 	kmsg->msg_iov = A(tmp2);
 	kmsg->msg_control = A(tmp3);

 	err = get_user(kmsg->msg_namelen, &umsg->msg_namelen);
 	err |= get_user(kmsg->msg_controllen, &umsg->msg_controllen);
 	err |= get_user(kmsg->msg_flags, &umsg->msg_flags);

 	kmsg->msg_flags = solaris_to_linux_msgflags(kmsg->msg_flags);

 	return err;
 }

 asmlinkage int solaris_sendmsg(int fd, struct sol_nmsghdr __user *user_msg, unsigned user_flags)
 {
 	struct socket *sock;
 	char address[MAX_SOCK_ADDR];
 	struct iovec iovstack[UIO_FASTIOV], *iov = iovstack;
 	unsigned char ctl[sizeof(struct cmsghdr) + 20];
 	unsigned char *ctl_buf = ctl;
 	struct msghdr msg_sys;
 	int err, ctl_len, iov_size, total_len;

 	err = -EFAULT;
 	if (msghdr_from_user32_to_kern(&msg_sys, user_msg))
 		goto out;

 	sock = sockfd_lookup(fd, &err);
 	if (!sock)
 		goto out;

 	/* do not move before msg_sys is valid */
 	err = -EMSGSIZE;
 	if (msg_sys.msg_iovlen > UIO_MAXIOV)
 		goto out_put;

 	/* Check whether to allocate the iovec area*/
 	err = -ENOMEM;
 	iov_size = msg_sys.msg_iovlen * sizeof(struct iovec);
 	if (msg_sys.msg_iovlen > UIO_FASTIOV) {
 		iov = sock_kmalloc(sock->sk, iov_size, GFP_KERNEL);
 		if (!iov)
 			goto out_put;
 	}

 	err = verify_compat_iovec(&msg_sys, iov, address, VERIFY_READ);
 	if (err < 0)
 		goto out_freeiov;
 	total_len = err;

 	err = -ENOBUFS;
 	if (msg_sys.msg_controllen > INT_MAX)
 		goto out_freeiov;

 	ctl_len = msg_sys.msg_controllen;
 	if (ctl_len) {
 		struct sol_cmsghdr __user *ucmsg = msg_sys.msg_control;
 		unsigned long *kcmsg;
 		compat_size_t cmlen;

 		err = -EINVAL;
 		if (ctl_len <= sizeof(compat_size_t))
 			goto out_freeiov;

 		if (ctl_len > sizeof(ctl)) {
 			err = -ENOBUFS;
 			ctl_buf = kmalloc(ctl_len, GFP_KERNEL);
 			if (!ctl_buf)
 				goto out_freeiov;
 		}
 		__get_user(cmlen, &ucmsg->cmsg_len);
 		kcmsg = (unsigned long *) ctl_buf;
 		*kcmsg++ = (unsigned long)cmlen;
 		err = -EFAULT;
 		if (copy_from_user(kcmsg, &ucmsg->cmsg_level,
 				   ctl_len - sizeof(compat_size_t)))
 			goto out_freectl;
 		msg_sys.msg_control = ctl_buf;
 	}
 	msg_sys.msg_flags = solaris_to_linux_msgflags(user_flags);

 	if (sock->file->f_flags & O_NONBLOCK)
 		msg_sys.msg_flags |= MSG_DONTWAIT;
 	err = sock_sendmsg(sock, &msg_sys, total_len);

 out_freectl:
 	if (ctl_buf != ctl)
 		sock_kfree_s(sock->sk, ctl_buf, ctl_len);
 out_freeiov:
 	if (iov != iovstack)
 		sock_kfree_s(sock->sk, iov, iov_size);
 out_put:
 	sockfd_put(sock);
 out:
 	return err;
 }

 asmlinkage int solaris_recvmsg(int fd, struct sol_nmsghdr __user *user_msg, unsigned int user_flags)
 {
 	struct socket *sock;
 	struct iovec iovstack[UIO_FASTIOV];
 	struct iovec *iov = iovstack;
 	struct msghdr msg_sys;
 	unsigned long cmsg_ptr;
 	int err, iov_size, total_len, len;

 	/* kernel mode address */
 	char addr[MAX_SOCK_ADDR];

 	/* user mode address pointers */
 	struct sockaddr __user *uaddr;
 	int __user *uaddr_len;

 	if (msghdr_from_user32_to_kern(&msg_sys, user_msg))
 		return -EFAULT;

 	sock = sockfd_lookup(fd, &err);
 	if (!sock)
 		goto out;

 	err = -EMSGSIZE;
 	if (msg_sys.msg_iovlen > UIO_MAXIOV)
 		goto out_put;

 	/* Check whether to allocate the iovec area*/
 	err = -ENOMEM;
 	iov_size = msg_sys.msg_iovlen * sizeof(struct iovec);
 	if (msg_sys.msg_iovlen > UIO_FASTIOV) {
 		iov = sock_kmalloc(sock->sk, iov_size, GFP_KERNEL);
 		if (!iov)
 			goto out_put;
 	}

 	/*
 	 *	Save the user-mode address (verify_iovec will change the
 	 *	kernel msghdr to use the kernel address space)
 	 */

 	uaddr = (void __user *) msg_sys.msg_name;
 	uaddr_len = &user_msg->msg_namelen;
 	err = verify_compat_iovec(&msg_sys, iov, addr, VERIFY_WRITE);
 	if (err < 0)
 		goto out_freeiov;
 	total_len = err;

 	cmsg_ptr = (unsigned long) msg_sys.msg_control;
 	msg_sys.msg_flags = MSG_CMSG_COMPAT;

 	if (sock->file->f_flags & O_NONBLOCK)
 		user_flags |= MSG_DONTWAIT;

 	err = sock_recvmsg(sock, &msg_sys, total_len, user_flags);
 	if(err < 0)
 		goto out_freeiov;

 	len = err;

 	if (uaddr != NULL) {
 		err = move_addr_to_user(addr, msg_sys.msg_namelen, uaddr, uaddr_len);
 		if (err < 0)
 			goto out_freeiov;
 	}
 	err = __put_user(linux_to_solaris_msgflags(msg_sys.msg_flags), &user_msg->msg_flags);
 	if (err)
 		goto out_freeiov;
 	err = __put_user((unsigned long)msg_sys.msg_control - cmsg_ptr,
 			 &user_msg->msg_controllen);
 	if (err)
 		goto out_freeiov;
 	err = len;

 out_freeiov:
 	if (iov != iovstack)
 		sock_kfree_s(sock->sk, iov, iov_size);
 out_put:
 	sockfd_put(sock);
 out:
 	return err;
 }
	/* $Id: socket.c,v 1.6 2002/02/08 03:57:14 davem Exp $
	* socket.c: Socket syscall emulation for Solaris 2.6+
	*
	* Copyright (C) 1998 Jakub Jelinek (jj@ultra.linux.cz)
	*
	* 1999-08-19 Fixed socketpair code
	* Jason Rappleye (rappleye@ccr.buffalo.edu)
	*/

	#include <linux/types.h>
	#include <linux/mm.h>
	#include <linux/slab.h>
	#include <linux/socket.h>
	#include <linux/file.h>
	#include <linux/net.h>
	#include <linux/compat.h>
	#include <net/compat.h>
	#include <net/sock.h>

	#include <asm/uaccess.h>
	#include <asm/string.h>
	#include <asm/oplib.h>
	#include <asm/idprom.h>

	#include "conv.h"

	#define SOCK_SOL_STREAM 2
	#define SOCK_SOL_DGRAM 1
	#define SOCK_SOL_RAW 4
	#define SOCK_SOL_RDM 5
	#define SOCK_SOL_SEQPACKET 6

	#define SOL_SO_SNDLOWAT 0x1003
	#define SOL_SO_RCVLOWAT 0x1004
	#define SOL_SO_SNDTIMEO 0x1005
	#define SOL_SO_RCVTIMEO 0x1006
	#define SOL_SO_STATE 0x2000

	#define SOL_SS_NDELAY 0x040
	#define SOL_SS_NONBLOCK 0x080
	#define SOL_SS_ASYNC 0x100

	#define SO_STATE 0x000e

	static int socket_check(int family, int type)
	{
	if (family != PF_UNIX && family != PF_INET)
	return -ESOCKTNOSUPPORT;
	switch (type) {
	case SOCK_SOL_STREAM: type = SOCK_STREAM; break;
	case SOCK_SOL_DGRAM: type = SOCK_DGRAM; break;
	case SOCK_SOL_RAW: type = SOCK_RAW; break;
	case SOCK_SOL_RDM: type = SOCK_RDM; break;
	case SOCK_SOL_SEQPACKET: type = SOCK_SEQPACKET; break;
	default: return -EINVAL;
	}
	return type;
	}

	static int solaris_to_linux_sockopt(int optname)
	{
	switch (optname) {
	case SOL_SO_SNDLOWAT: optname = SO_SNDLOWAT; break;
	case SOL_SO_RCVLOWAT: optname = SO_RCVLOWAT; break;
	case SOL_SO_SNDTIMEO: optname = SO_SNDTIMEO; break;
	case SOL_SO_RCVTIMEO: optname = SO_RCVTIMEO; break;
	case SOL_SO_STATE: optname = SO_STATE; break;
	};

	return optname;
	}

	asmlinkage int solaris_socket(int family, int type, int protocol)
	{
	int (*sys_socket)(int, int, int) =
	(int (*)(int, int, int))SYS(socket);

	type = socket_check (family, type);
	if (type < 0) return type;
	return sys_socket(family, type, protocol);
	}

	asmlinkage int solaris_socketpair(int *usockvec)
	{
	int (sys_socketpair)(int, int, int, int ) =
	(int ()(int, int, int, int ))SYS(socketpair);

	/* solaris socketpair really only takes one arg at the syscall
	* level, int * usockvec. The libs apparently take care of
	* making sure that family==AF_UNIX and type==SOCK_STREAM. The
	* pointer we really want ends up residing in the first (and
	* supposedly only) argument.
	*/

	return sys_socketpair(AF_UNIX, SOCK_STREAM, 0, (int *)usockvec);
	}

	asmlinkage int solaris_bind(int fd, struct sockaddr *addr, int addrlen)
	{
	int (sys_bind)(int, struct sockaddr , int) =
	(int ()(int, struct sockaddr , int))SUNOS(104);

	return sys_bind(fd, addr, addrlen);
	}

	asmlinkage int solaris_setsockopt(int fd, int level, int optname, u32 optval, int optlen)
	{
	int (*sunos_setsockopt)(int, int, int, u32, int) =
	(int (*)(int, int, int, u32, int))SUNOS(105);

	optname = solaris_to_linux_sockopt(optname);
	if (optname < 0)
	return optname;
	if (optname == SO_STATE)
	return 0;

	return sunos_setsockopt(fd, level, optname, optval, optlen);
	}

	asmlinkage int solaris_getsockopt(int fd, int level, int optname, u32 optval, u32 optlen)
	{
	int (*sunos_getsockopt)(int, int, int, u32, u32) =
	(int (*)(int, int, int, u32, u32))SUNOS(118);

	optname = solaris_to_linux_sockopt(optname);
	if (optname < 0)
	return optname;

	if (optname == SO_STATE)
	optname = SOL_SO_STATE;

	return sunos_getsockopt(fd, level, optname, optval, optlen);
	}

	asmlinkage int solaris_connect(int fd, struct sockaddr __user *addr, int addrlen)
	{
	int (sys_connect)(int, struct sockaddr __user , int) =
	(int ()(int, struct sockaddr __user , int))SYS(connect);

	return sys_connect(fd, addr, addrlen);
	}

	asmlinkage int solaris_accept(int fd, struct sockaddr __user addr, int __user addrlen)
	{
	int (sys_accept)(int, struct sockaddr __user , int __user *) =
	(int ()(int, struct sockaddr __user , int __user *))SYS(accept);

	return sys_accept(fd, addr, addrlen);
	}

	asmlinkage int solaris_listen(int fd, int backlog)
	{
	int (*sys_listen)(int, int) =
	(int (*)(int, int))SUNOS(106);

	return sys_listen(fd, backlog);
	}

	asmlinkage int solaris_shutdown(int fd, int how)
	{
	int (*sys_shutdown)(int, int) =
	(int (*)(int, int))SYS(shutdown);

	return sys_shutdown(fd, how);
	}

	#define MSG_SOL_OOB 0x1
	#define MSG_SOL_PEEK 0x2
	#define MSG_SOL_DONTROUTE 0x4
	#define MSG_SOL_EOR 0x8
	#define MSG_SOL_CTRUNC 0x10
	#define MSG_SOL_TRUNC 0x20
	#define MSG_SOL_WAITALL 0x40
	#define MSG_SOL_DONTWAIT 0x80

	static int solaris_to_linux_msgflags(int flags)
	{
	int fl = flags & (MSG_OOB\|MSG_PEEK\|MSG_DONTROUTE);

	if (flags & MSG_SOL_EOR) fl \|= MSG_EOR;
	if (flags & MSG_SOL_CTRUNC) fl \|= MSG_CTRUNC;
	if (flags & MSG_SOL_TRUNC) fl \|= MSG_TRUNC;
	if (flags & MSG_SOL_WAITALL) fl \|= MSG_WAITALL;
	if (flags & MSG_SOL_DONTWAIT) fl \|= MSG_DONTWAIT;
	return fl;
	}

	static int linux_to_solaris_msgflags(int flags)
	{
	int fl = flags & (MSG_OOB\|MSG_PEEK\|MSG_DONTROUTE);

	if (flags & MSG_EOR) fl \|= MSG_SOL_EOR;
	if (flags & MSG_CTRUNC) fl \|= MSG_SOL_CTRUNC;
	if (flags & MSG_TRUNC) fl \|= MSG_SOL_TRUNC;
	if (flags & MSG_WAITALL) fl \|= MSG_SOL_WAITALL;
	if (flags & MSG_DONTWAIT) fl \|= MSG_SOL_DONTWAIT;
	return fl;
	}

	asmlinkage int solaris_recvfrom(int s, char __user *buf, int len, int flags, u32 from, u32 fromlen)
	{
	int (sys_recvfrom)(int, void __user , size_t, unsigned, struct sockaddr __user , int __user ) =
	(int ()(int, void __user , size_t, unsigned, struct sockaddr __user , int __user ))SYS(recvfrom);

	return sys_recvfrom(s, buf, len, solaris_to_linux_msgflags(flags), A(from), A(fromlen));
	}

	asmlinkage int solaris_recv(int s, char __user *buf, int len, int flags)
	{
	int (sys_recvfrom)(int, void __user , size_t, unsigned, struct sockaddr __user , int __user ) =
	(int ()(int, void __user , size_t, unsigned, struct sockaddr __user , int __user ))SYS(recvfrom);

	return sys_recvfrom(s, buf, len, solaris_to_linux_msgflags(flags), NULL, NULL);
	}

	asmlinkage int solaris_sendto(int s, char __user *buf, int len, int flags, u32 to, u32 tolen)
	{
	int (sys_sendto)(int, void __user , size_t, unsigned, struct sockaddr __user , int __user ) =
	(int ()(int, void __user , size_t, unsigned, struct sockaddr __user , int __user ))SYS(sendto);

	return sys_sendto(s, buf, len, solaris_to_linux_msgflags(flags), A(to), A(tolen));
	}

	asmlinkage int solaris_send(int s, char *buf, int len, int flags)
	{
	int (sys_sendto)(int, void , size_t, unsigned, struct sockaddr , int ) =
	(int ()(int, void , size_t, unsigned, struct sockaddr , int ))SYS(sendto);

	return sys_sendto(s, buf, len, solaris_to_linux_msgflags(flags), NULL, NULL);
	}

	asmlinkage int solaris_getpeername(int fd, struct sockaddr addr, int addrlen)
	{
	int (sys_getpeername)(int, struct sockaddr , int *) =
	(int ()(int, struct sockaddr , int *))SYS(getpeername);

	return sys_getpeername(fd, addr, addrlen);
	}

	asmlinkage int solaris_getsockname(int fd, struct sockaddr addr, int addrlen)
	{
	int (sys_getsockname)(int, struct sockaddr , int *) =
	(int ()(int, struct sockaddr , int *))SYS(getsockname);

	return sys_getsockname(fd, addr, addrlen);
	}

	/* XXX This really belongs in some header file... -DaveM */
	#define MAX_SOCK_ADDR 128 /* 108 for Unix domain -
	16 for IP, 16 for IPX,
	24 for IPv6,
	about 80 for AX.25 */

	struct sol_nmsghdr {
	u32 msg_name;
	int msg_namelen;
	u32 msg_iov;
	u32 msg_iovlen;
	u32 msg_control;
	u32 msg_controllen;
	u32 msg_flags;
	};

	struct sol_cmsghdr {
	u32 cmsg_len;
	int cmsg_level;
	int cmsg_type;
	unsigned char cmsg_data[0];
	};

	static inline int msghdr_from_user32_to_kern(struct msghdr *kmsg,
	struct sol_nmsghdr __user *umsg)
	{
	u32 tmp1, tmp2, tmp3;
	int err;

	err = get_user(tmp1, &umsg->msg_name);
	err \|= __get_user(tmp2, &umsg->msg_iov);
	err \|= __get_user(tmp3, &umsg->msg_control);
	if (err)
	return -EFAULT;

	kmsg->msg_name = A(tmp1);
	kmsg->msg_iov = A(tmp2);
	kmsg->msg_control = A(tmp3);

	err = get_user(kmsg->msg_namelen, &umsg->msg_namelen);
	err \|= get_user(kmsg->msg_controllen, &umsg->msg_controllen);
	err \|= get_user(kmsg->msg_flags, &umsg->msg_flags);

	kmsg->msg_flags = solaris_to_linux_msgflags(kmsg->msg_flags);

	return err;
	}

	asmlinkage int solaris_sendmsg(int fd, struct sol_nmsghdr __user *user_msg, unsigned user_flags)
	{
	struct socket *sock;
	char address[MAX_SOCK_ADDR];
	struct iovec iovstack[UIO_FASTIOV], *iov = iovstack;
	unsigned char ctl[sizeof(struct cmsghdr) + 20];
	unsigned char *ctl_buf = ctl;
	struct msghdr msg_sys;
	int err, ctl_len, iov_size, total_len;

	err = -EFAULT;
	if (msghdr_from_user32_to_kern(&msg_sys, user_msg))
	goto out;

	sock = sockfd_lookup(fd, &err);
	if (!sock)
	goto out;

	/* do not move before msg_sys is valid */
	err = -EMSGSIZE;
	if (msg_sys.msg_iovlen > UIO_MAXIOV)
	goto out_put;

	/* Check whether to allocate the iovec area*/
	err = -ENOMEM;
	iov_size = msg_sys.msg_iovlen * sizeof(struct iovec);
	if (msg_sys.msg_iovlen > UIO_FASTIOV) {
	iov = sock_kmalloc(sock->sk, iov_size, GFP_KERNEL);
	if (!iov)
	goto out_put;
	}

	err = verify_compat_iovec(&msg_sys, iov, address, VERIFY_READ);
	if (err < 0)
	goto out_freeiov;
	total_len = err;

	err = -ENOBUFS;
	if (msg_sys.msg_controllen > INT_MAX)
	goto out_freeiov;

	ctl_len = msg_sys.msg_controllen;
	if (ctl_len) {
	struct sol_cmsghdr __user *ucmsg = msg_sys.msg_control;
	unsigned long *kcmsg;
	compat_size_t cmlen;

	err = -EINVAL;
	if (ctl_len <= sizeof(compat_size_t))
	goto out_freeiov;

	if (ctl_len > sizeof(ctl)) {
	err = -ENOBUFS;
	ctl_buf = kmalloc(ctl_len, GFP_KERNEL);
	if (!ctl_buf)
	goto out_freeiov;
	}
	__get_user(cmlen, &ucmsg->cmsg_len);
	kcmsg = (unsigned long *) ctl_buf;
	*kcmsg++ = (unsigned long)cmlen;
	err = -EFAULT;
	if (copy_from_user(kcmsg, &ucmsg->cmsg_level,
	ctl_len - sizeof(compat_size_t)))
	goto out_freectl;
	msg_sys.msg_control = ctl_buf;
	}
	msg_sys.msg_flags = solaris_to_linux_msgflags(user_flags);

	if (sock->file->f_flags & O_NONBLOCK)
	msg_sys.msg_flags \|= MSG_DONTWAIT;
	err = sock_sendmsg(sock, &msg_sys, total_len);

	out_freectl:
	if (ctl_buf != ctl)
	sock_kfree_s(sock->sk, ctl_buf, ctl_len);
	out_freeiov:
	if (iov != iovstack)
	sock_kfree_s(sock->sk, iov, iov_size);
	out_put:
	sockfd_put(sock);
	out:
	return err;
	}

	asmlinkage int solaris_recvmsg(int fd, struct sol_nmsghdr __user *user_msg, unsigned int user_flags)
	{
	struct socket *sock;
	struct iovec iovstack[UIO_FASTIOV];
	struct iovec *iov = iovstack;
	struct msghdr msg_sys;
	unsigned long cmsg_ptr;
	int err, iov_size, total_len, len;

	/* kernel mode address */
	char addr[MAX_SOCK_ADDR];

	/* user mode address pointers */
	struct sockaddr __user *uaddr;
	int __user *uaddr_len;

	if (msghdr_from_user32_to_kern(&msg_sys, user_msg))
	return -EFAULT;

	sock = sockfd_lookup(fd, &err);
	if (!sock)
	goto out;

	err = -EMSGSIZE;
	if (msg_sys.msg_iovlen > UIO_MAXIOV)
	goto out_put;

	/* Check whether to allocate the iovec area*/
	err = -ENOMEM;
	iov_size = msg_sys.msg_iovlen * sizeof(struct iovec);
	if (msg_sys.msg_iovlen > UIO_FASTIOV) {
	iov = sock_kmalloc(sock->sk, iov_size, GFP_KERNEL);
	if (!iov)
	goto out_put;
	}

	/*
	* Save the user-mode address (verify_iovec will change the
	* kernel msghdr to use the kernel address space)
	*/

	uaddr = (void __user *) msg_sys.msg_name;
	uaddr_len = &user_msg->msg_namelen;
	err = verify_compat_iovec(&msg_sys, iov, addr, VERIFY_WRITE);
	if (err < 0)
	goto out_freeiov;
	total_len = err;

	cmsg_ptr = (unsigned long) msg_sys.msg_control;
	msg_sys.msg_flags = MSG_CMSG_COMPAT;

	if (sock->file->f_flags & O_NONBLOCK)
	user_flags \|= MSG_DONTWAIT;

	err = sock_recvmsg(sock, &msg_sys, total_len, user_flags);
	if(err < 0)
	goto out_freeiov;

	len = err;

	if (uaddr != NULL) {
	err = move_addr_to_user(addr, msg_sys.msg_namelen, uaddr, uaddr_len);
	if (err < 0)
	goto out_freeiov;
	}
	err = __put_user(linux_to_solaris_msgflags(msg_sys.msg_flags), &user_msg->msg_flags);
	if (err)
	goto out_freeiov;
	err = __put_user((unsigned long)msg_sys.msg_control - cmsg_ptr,
	&user_msg->msg_controllen);
	if (err)
	goto out_freeiov;
	err = len;

	out_freeiov:
	if (iov != iovstack)
	sock_kfree_s(sock->sk, iov, iov_size);
	out_put:
	sockfd_put(sock);
	out:
	return err;
	}