1 files changed, 6 insertions, 260 deletions

diff --git a/fs/compat.c b/fs/compat.c
index 0ea00832de23..c98787536bb8 100644
--- a/fs/compat.c
+++ b/fs/compat.c
@@ -37,7 +37,6 @@
 #include <linux/dirent.h>
 #include <linux/fsnotify.h>
 #include <linux/highuid.h>
-#include <linux/nfsd/syscall.h>
 #include <linux/personality.h>
 #include <linux/rwsem.h>
 #include <linux/tsacct_kern.h>
@@ -247,11 +246,8 @@ static int put_compat_statfs(struct compat_statfs __user *ubuf, struct kstatfs *
 	    __put_user(kbuf->f_fsid.val[0], &ubuf->f_fsid.val[0]) ||
 	    __put_user(kbuf->f_fsid.val[1], &ubuf->f_fsid.val[1]) ||
 	    __put_user(kbuf->f_frsize, &ubuf->f_frsize) ||
-	    __put_user(0, &ubuf->f_spare[0]) || 
-	    __put_user(0, &ubuf->f_spare[1]) || 
-	    __put_user(0, &ubuf->f_spare[2]) || 
-	    __put_user(0, &ubuf->f_spare[3]) || 
-	    __put_user(0, &ubuf->f_spare[4]))
+	    __put_user(kbuf->f_flags, &ubuf->f_flags) ||
+	    __clear_user(ubuf->f_spare, sizeof(ubuf->f_spare)))
 		return -EFAULT;
 	return 0;
 }
@@ -550,7 +546,7 @@ out:
 ssize_t compat_rw_copy_check_uvector(int type,
 		const struct compat_iovec __user *uvector, unsigned long nr_segs,
 		unsigned long fast_segs, struct iovec *fast_pointer,
-		struct iovec **ret_pointer)
+		struct iovec **ret_pointer, int check_access)
 {
 	compat_ssize_t tot_len;
 	struct iovec *iov = *ret_pointer = fast_pointer;
@@ -597,7 +593,8 @@ ssize_t compat_rw_copy_check_uvector(int type,
 		}
 		if (len < 0)	/* size_t not fitting in compat_ssize_t .. */
 			goto out;
-		if (!access_ok(vrfy_dir(type), compat_ptr(buf), len)) {
+		if (check_access &&
+		    !access_ok(vrfy_dir(type), compat_ptr(buf), len)) {
 			ret = -EFAULT;
 			goto out;
 		}
@@ -1111,7 +1108,7 @@ static ssize_t compat_do_readv_writev(int type, struct file *file,
 		goto out;
 
 	tot_len = compat_rw_copy_check_uvector(type, uvector, nr_segs,
-					       UIO_FASTIOV, iovstack, &iov);
+					       UIO_FASTIOV, iovstack, &iov, 1);
 	if (tot_len == 0) {
 		ret = 0;
 		goto out;
@@ -1675,257 +1672,6 @@ asmlinkage long compat_sys_ppoll(struct pollfd __user *ufds,
 }
 #endif /* HAVE_SET_RESTORE_SIGMASK */
 
-#if (defined(CONFIG_NFSD) || defined(CONFIG_NFSD_MODULE)) && !defined(CONFIG_NFSD_DEPRECATED)
-/* Stuff for NFS server syscalls... */
-struct compat_nfsctl_svc {
-	u16			svc32_port;
-	s32			svc32_nthreads;
-};
-
-struct compat_nfsctl_client {
-	s8			cl32_ident[NFSCLNT_IDMAX+1];
-	s32			cl32_naddr;
-	struct in_addr		cl32_addrlist[NFSCLNT_ADDRMAX];
-	s32			cl32_fhkeytype;
-	s32			cl32_fhkeylen;
-	u8			cl32_fhkey[NFSCLNT_KEYMAX];
-};
-
-struct compat_nfsctl_export {
-	char		ex32_client[NFSCLNT_IDMAX+1];
-	char		ex32_path[NFS_MAXPATHLEN+1];
-	compat_dev_t	ex32_dev;
-	compat_ino_t	ex32_ino;
-	compat_int_t	ex32_flags;
-	__compat_uid_t	ex32_anon_uid;
-	__compat_gid_t	ex32_anon_gid;
-};
-
-struct compat_nfsctl_fdparm {
-	struct sockaddr		gd32_addr;
-	s8			gd32_path[NFS_MAXPATHLEN+1];
-	compat_int_t		gd32_version;
-};
-
-struct compat_nfsctl_fsparm {
-	struct sockaddr		gd32_addr;
-	s8			gd32_path[NFS_MAXPATHLEN+1];
-	compat_int_t		gd32_maxlen;
-};
-
-struct compat_nfsctl_arg {
-	compat_int_t		ca32_version;	/* safeguard */
-	union {
-		struct compat_nfsctl_svc	u32_svc;
-		struct compat_nfsctl_client	u32_client;
-		struct compat_nfsctl_export	u32_export;
-		struct compat_nfsctl_fdparm	u32_getfd;
-		struct compat_nfsctl_fsparm	u32_getfs;
-	} u;
-#define ca32_svc	u.u32_svc
-#define ca32_client	u.u32_client
-#define ca32_export	u.u32_export
-#define ca32_getfd	u.u32_getfd
-#define ca32_getfs	u.u32_getfs
-};
-
-union compat_nfsctl_res {
-	__u8			cr32_getfh[NFS_FHSIZE];
-	struct knfsd_fh		cr32_getfs;
-};
-
-static int compat_nfs_svc_trans(struct nfsctl_arg *karg,
-				struct compat_nfsctl_arg __user *arg)
-{
-	if (!access_ok(VERIFY_READ, &arg->ca32_svc, sizeof(arg->ca32_svc)) ||
-		get_user(karg->ca_version, &arg->ca32_version) ||
-		__get_user(karg->ca_svc.svc_port, &arg->ca32_svc.svc32_port) ||
-		__get_user(karg->ca_svc.svc_nthreads,
-				&arg->ca32_svc.svc32_nthreads))
-		return -EFAULT;
-	return 0;
-}
-
-static int compat_nfs_clnt_trans(struct nfsctl_arg *karg,
-				struct compat_nfsctl_arg __user *arg)
-{
-	if (!access_ok(VERIFY_READ, &arg->ca32_client,
-			sizeof(arg->ca32_client)) ||
-		get_user(karg->ca_version, &arg->ca32_version) ||
-		__copy_from_user(&karg->ca_client.cl_ident[0],
-				&arg->ca32_client.cl32_ident[0],
-				NFSCLNT_IDMAX) ||
-		__get_user(karg->ca_client.cl_naddr,
-				&arg->ca32_client.cl32_naddr) ||
-		__copy_from_user(&karg->ca_client.cl_addrlist[0],
-				&arg->ca32_client.cl32_addrlist[0],
-				(sizeof(struct in_addr) * NFSCLNT_ADDRMAX)) ||
-		__get_user(karg->ca_client.cl_fhkeytype,
-				&arg->ca32_client.cl32_fhkeytype) ||
-		__get_user(karg->ca_client.cl_fhkeylen,
-				&arg->ca32_client.cl32_fhkeylen) ||
-		__copy_from_user(&karg->ca_client.cl_fhkey[0],
-				&arg->ca32_client.cl32_fhkey[0],
-				NFSCLNT_KEYMAX))
-		return -EFAULT;
-
-	return 0;
-}
-
-static int compat_nfs_exp_trans(struct nfsctl_arg *karg,
-				struct compat_nfsctl_arg __user *arg)
-{
-	if (!access_ok(VERIFY_READ, &arg->ca32_export,
-				sizeof(arg->ca32_export)) ||
-		get_user(karg->ca_version, &arg->ca32_version) ||
-		__copy_from_user(&karg->ca_export.ex_client[0],
-				&arg->ca32_export.ex32_client[0],
-				NFSCLNT_IDMAX) ||
-		__copy_from_user(&karg->ca_export.ex_path[0],
-				&arg->ca32_export.ex32_path[0],
-				NFS_MAXPATHLEN) ||
-		__get_user(karg->ca_export.ex_dev,
-				&arg->ca32_export.ex32_dev) ||
-		__get_user(karg->ca_export.ex_ino,
-				&arg->ca32_export.ex32_ino) ||
-		__get_user(karg->ca_export.ex_flags,
-				&arg->ca32_export.ex32_flags) ||
-		__get_user(karg->ca_export.ex_anon_uid,
-				&arg->ca32_export.ex32_anon_uid) ||
-		__get_user(karg->ca_export.ex_anon_gid,
-				&arg->ca32_export.ex32_anon_gid))
-		return -EFAULT;
-	SET_UID(karg->ca_export.ex_anon_uid, karg->ca_export.ex_anon_uid);
-	SET_GID(karg->ca_export.ex_anon_gid, karg->ca_export.ex_anon_gid);
-
-	return 0;
-}
-
-static int compat_nfs_getfd_trans(struct nfsctl_arg *karg,
-				struct compat_nfsctl_arg __user *arg)
-{
-	if (!access_ok(VERIFY_READ, &arg->ca32_getfd,
-			sizeof(arg->ca32_getfd)) ||
-		get_user(karg->ca_version, &arg->ca32_version) ||
-		__copy_from_user(&karg->ca_getfd.gd_addr,
-				&arg->ca32_getfd.gd32_addr,
-				(sizeof(struct sockaddr))) ||
-		__copy_from_user(&karg->ca_getfd.gd_path,
-				&arg->ca32_getfd.gd32_path,
-				(NFS_MAXPATHLEN+1)) ||
-		__get_user(karg->ca_getfd.gd_version,
-				&arg->ca32_getfd.gd32_version))
-		return -EFAULT;
-
-	return 0;
-}
-
-static int compat_nfs_getfs_trans(struct nfsctl_arg *karg,
-				struct compat_nfsctl_arg __user *arg)
-{
-	if (!access_ok(VERIFY_READ,&arg->ca32_getfs,sizeof(arg->ca32_getfs)) ||
-		get_user(karg->ca_version, &arg->ca32_version) ||
-		__copy_from_user(&karg->ca_getfs.gd_addr,
-				&arg->ca32_getfs.gd32_addr,
-				(sizeof(struct sockaddr))) ||
-		__copy_from_user(&karg->ca_getfs.gd_path,
-				&arg->ca32_getfs.gd32_path,
-				(NFS_MAXPATHLEN+1)) ||
-		__get_user(karg->ca_getfs.gd_maxlen,
-				&arg->ca32_getfs.gd32_maxlen))
-		return -EFAULT;
-
-	return 0;
-}
-
-/* This really doesn't need translations, we are only passing
- * back a union which contains opaque nfs file handle data.
- */
-static int compat_nfs_getfh_res_trans(union nfsctl_res *kres,
-				union compat_nfsctl_res __user *res)
-{
-	int err;
-
-	err = copy_to_user(res, kres, sizeof(*res));
-
-	return (err) ? -EFAULT : 0;
-}
-
-asmlinkage long compat_sys_nfsservctl(int cmd,
-				struct compat_nfsctl_arg __user *arg,
-				union compat_nfsctl_res __user *res)
-{
-	struct nfsctl_arg *karg;
-	union nfsctl_res *kres;
-	mm_segment_t oldfs;
-	int err;
-
-	karg = kmalloc(sizeof(*karg), GFP_USER);
-	kres = kmalloc(sizeof(*kres), GFP_USER);
-	if(!karg || !kres) {
-		err = -ENOMEM;
-		goto done;
-	}
-
-	switch(cmd) {
-	case NFSCTL_SVC:
-		err = compat_nfs_svc_trans(karg, arg);
-		break;
-
-	case NFSCTL_ADDCLIENT:
-		err = compat_nfs_clnt_trans(karg, arg);
-		break;
-
-	case NFSCTL_DELCLIENT:
-		err = compat_nfs_clnt_trans(karg, arg);
-		break;
-
-	case NFSCTL_EXPORT:
-	case NFSCTL_UNEXPORT:
-		err = compat_nfs_exp_trans(karg, arg);
-		break;
-
-	case NFSCTL_GETFD:
-		err = compat_nfs_getfd_trans(karg, arg);
-		break;
-
-	case NFSCTL_GETFS:
-		err = compat_nfs_getfs_trans(karg, arg);
-		break;
-
-	default:
-		err = -EINVAL;
-		break;
-	}
-
-	if (err)
-		goto done;
-
-	oldfs = get_fs();
-	set_fs(KERNEL_DS);
-	/* The __user pointer casts are valid because of the set_fs() */
-	err = sys_nfsservctl(cmd, (void __user *) karg, (void __user *) kres);
-	set_fs(oldfs);
-
-	if (err)
-		goto done;
-
-	if((cmd == NFSCTL_GETFD) ||
-	   (cmd == NFSCTL_GETFS))
-		err = compat_nfs_getfh_res_trans(kres, res);
-
-done:
-	kfree(karg);
-	kfree(kres);
-	return err;
-}
-#else /* !NFSD */
-long asmlinkage compat_sys_nfsservctl(int cmd, void *notused, void *notused2)
-{
-	return sys_ni_syscall();
-}
-#endif
-
 #ifdef CONFIG_EPOLL
 
 #ifdef HAVE_SET_RESTORE_SIGMASK