コード例 #1
0
ファイル: nwfs_vnops.c プロジェクト: mihaicarabas/dragonfly
/*
 * nwfs_getattr call from vfs.
 *
 * nwfs_getattr(struct vnode *a_vp, struct vattr *a_vap)
 */
static int
nwfs_getattr(struct vop_getattr_args *ap)
{
	thread_t td = curthread; /* XXX */
	struct vnode *vp = ap->a_vp;
	struct nwnode *np = VTONW(vp);
	struct vattr *va=ap->a_vap;
	struct nwmount *nmp = VTONWFS(vp);
	struct nw_entry_info fattr;
	int error;
	u_int32_t oldsize;

	NCPVNDEBUG("%lx:%d: '%s' %d\n", (long)vp, nmp->n_volume, np->n_name, (vp->v_flag & VROOT) != 0);
	error = nwfs_attr_cachelookup(vp,va);
	if (!error) return 0;
	NCPVNDEBUG("not in cache\n");
	oldsize = np->n_size;
	if (np->n_flag & NVOLUME) {
		error = ncp_obtain_info(nmp, np->n_fid.f_id, 0, NULL, &fattr,
		    td,proc0.p_ucred);
	} else {
		error = ncp_obtain_info(nmp, np->n_fid.f_parent, np->n_nmlen, 
		    np->n_name, &fattr, td, proc0.p_ucred);
	}
	if (error) {
		NCPVNDEBUG("error %d\n", error);
		return error;
	}
	nwfs_attr_cacheenter(vp, &fattr);
	*va = np->n_vattr;
	if (np->opened)
		np->n_size = oldsize;
	return (0);
}
コード例 #2
0
ファイル: nwfs_io.c プロジェクト: mihaicarabas/dragonfly
int
nwfs_writevnode(struct vnode *vp, struct uio *uiop, struct ucred *cred,
		int ioflag)
{
	struct nwmount *nmp = VTONWFS(vp);
	struct nwnode *np = VTONW(vp);
	struct thread *td;
/*	struct vattr vattr;*/
	int error = 0;

	if (vp->v_type != VREG) {
		kprintf("%s: vn types other than VREG unsupported !\n",__func__);
		return EIO;
	}
	NCPVNDEBUG("ofs=%d,resid=%d\n",(int)uiop->uio_offset, uiop->uio_resid);
	if (uiop->uio_offset < 0) return EINVAL;
	td = uiop->uio_td;
	if (ioflag & (IO_APPEND | IO_SYNC)) {
		if (np->n_flag & NMODIFIED) {
			nwfs_attr_cacheremove(vp);
			error = nwfs_vinvalbuf(vp, V_SAVE, 1);
			if (error) return (error);
		}
		if (ioflag & IO_APPEND) {
		/* We can relay only on local information about file size,
		 * because until file is closed NetWare will not return
		 * the correct size. */
#if 0 /* notyet */
			nwfs_attr_cacheremove(vp);
			error = VOP_GETATTR(vp, &vattr);
			if (error) return (error);
#endif
			uiop->uio_offset = np->n_size;
		}
	}
	if (uiop->uio_resid == 0) return 0;
	if (td->td_proc && uiop->uio_offset + uiop->uio_resid > 
	    td->td_proc->p_rlimit[RLIMIT_FSIZE].rlim_cur) {
		lwpsignal(td->td_proc, td->td_lwp, SIGXFSZ);
		return (EFBIG);
	}
	error = ncp_write(NWFSTOCONN(nmp), &np->n_fh, uiop, cred);
	NCPVNDEBUG("after: ofs=%d,resid=%d\n",(int)uiop->uio_offset, uiop->uio_resid);
	if (!error) {
		if (uiop->uio_offset > np->n_size) {
			np->n_vattr.va_size = np->n_size = uiop->uio_offset;
			vnode_pager_setsize(vp, np->n_size);
		}
	}
	return (error);
}
コード例 #3
0
ファイル: nwfs_vnops.c プロジェクト: mihaicarabas/dragonfly
/*
 * nwfs_close(struct vnode *a_vp, int a_fflag)
 */
static int
nwfs_close(struct vop_close_args *ap)
{
	thread_t td = curthread; /* XXX */
	struct vnode *vp = ap->a_vp;
	struct nwnode *np = VTONW(vp);
	int error;

	NCPVNDEBUG("name=%s,td=%p,c=%d\n",np->n_name,ap->a_td,np->opened);

	vn_lock(vp, LK_UPGRADE | LK_RETRY);

	error = 0;
	if (vp->v_type == VDIR)
		goto done;
	if (np->opened == 0)
		goto done;
	error = nwfs_vinvalbuf(vp, V_SAVE, 1);
	if (np->opened == 0) {
		error = 0;	/* huh? */
		goto done;
	}
	if (--np->opened == 0) {
		error = ncp_close_file(NWFSTOCONN(VTONWFS(vp)), &np->n_fh, 
		   td, proc0.p_ucred);
	} 
	np->n_atime = 0;
done:
	vop_stdclose(ap);
	return (error);
}
コード例 #4
0
ファイル: nwfs_vnops.c プロジェクト: mihaicarabas/dragonfly
/*
 * nwfs_read call.
 *
 * nwfs_read(struct vnode *a_vp, struct uio *a_uio, int a_ioflag,
 *	     struct ucred *a_cred)
 */
static int
nwfs_read(struct vop_read_args *ap)
{
	struct vnode *vp = ap->a_vp;
	struct uio *uio=ap->a_uio;
	int error;
	NCPVNDEBUG("nwfs_read:\n");

	if (vp->v_type != VREG && vp->v_type != VDIR)
		return (EPERM);
	error = nwfs_readvnode(vp, uio, ap->a_cred);
	return error;
}
コード例 #5
0
ファイル: nwfs_vnops.c プロジェクト: mihaicarabas/dragonfly
/*
 * nwfs_access vnode op
 *
 * nwfs_access(struct vnode *a_vp, int a_mode, struct ucred *a_cred)
 */
static int
nwfs_access(struct vop_access_args *ap)
{
	struct vnode *vp = ap->a_vp;
	struct nwmount *nmp = VTONWFS(vp);
	int error;
	int mode;

	NCPVNDEBUG("\n");
	mode = ((vp->v_type == VREG) ?  nmp->m.file_mode : nmp->m.dir_mode);
	error = vop_helper_access(ap, nmp->m.uid, nmp->m.gid, mode, 0);
	return (error);
}
コード例 #6
0
ファイル: nwfs_vnops.c プロジェクト: mihaicarabas/dragonfly
/*
 * nwfs_write(struct vnode *a_vp, struct uio *a_uio, int a_ioflag,
 *	      struct ucred *a_cred)
 */
static int
nwfs_write(struct vop_write_args *ap)
{
	struct vnode *vp = ap->a_vp;
	struct uio *uio = ap->a_uio;
	int error;

	NCPVNDEBUG("%d,ofs=%d,sz=%d\n",vp->v_type, (int)uio->uio_offset, uio->uio_resid);

	if (vp->v_type != VREG)
		return (EPERM);
	error = nwfs_writevnode(vp, uio, ap->a_cred,ap->a_ioflag);
	return(error);
}
コード例 #7
0
ファイル: nwfs_vnops.c プロジェクト: mihaicarabas/dragonfly
/*
 * nwfs_setattr call from vfs.
 *
 * nwfs_setattr(struct vnode *a_vp, struct vattr *a_vap, struct ucred *a_cred)
 */
static int
nwfs_setattr(struct vop_setattr_args *ap)
{
	thread_t td = curthread; /* XXX */
	struct vnode *vp = ap->a_vp;
	struct nwnode *np = VTONW(vp);
	struct vattr *vap = ap->a_vap;
	u_quad_t tsize=0;
	int error = 0;

	NCPVNDEBUG("\n");
	if (vap->va_flags != VNOVAL)
		return (EOPNOTSUPP);
	/*
	 * Disallow write attempts if the filesystem is mounted read-only.
	 */
  	if ((vap->va_uid != (uid_t)VNOVAL || vap->va_gid != (gid_t)VNOVAL || 
	     vap->va_atime.tv_sec != VNOVAL || vap->va_mtime.tv_sec != VNOVAL ||
	     vap->va_mode != (mode_t)VNOVAL) &&(vp->v_mount->mnt_flag & MNT_RDONLY))
		return (EROFS);
	if (vap->va_size != VNOVAL) {
 		switch (vp->v_type) {
 		case VDIR:
 			return (EISDIR);
 		case VREG:
			/*
			 * Disallow write attempts if the filesystem is
			 * mounted read-only.
			 */
			if (vp->v_mount->mnt_flag & MNT_RDONLY)
				return (EROFS);
			vnode_pager_setsize(vp, (u_long)vap->va_size);
 			tsize = np->n_size;
 			np->n_size = vap->va_size;
			break;
 		default:
			return EINVAL;
  		}
  	}
	error = ncp_setattr(vp, vap, ap->a_cred, td);
	if (error && vap->va_size != VNOVAL) {
		np->n_size = tsize;
		vnode_pager_setsize(vp, (u_long)tsize);
	}
	np->n_atime = 0;	/* invalidate cache */
	VOP_GETATTR(vp, vap);
	np->n_mtime = vap->va_mtime.tv_sec;
	return (0);
}
コード例 #8
0
ファイル: nwfs_vnops.c プロジェクト: mihaicarabas/dragonfly
/*
 * nwfs_strategy(struct vnode *a_vp, struct bio *a_bio)
 */
static int
nwfs_strategy(struct vop_strategy_args *ap)
{
	struct bio *bio = ap->a_bio;
	int error = 0;
	struct thread *td = NULL;

	NCPVNDEBUG("\n");
	if ((bio->bio_flags & BIO_SYNC))
		td = curthread;		/* YYY dunno if this is legal */
	/*
	 * If the op is asynchronous and an i/o daemon is waiting
	 * queue the request, wake it up and wait for completion
	 * otherwise just do it ourselves.
	 */
	if (bio->bio_flags & BIO_SYNC)
		error = nwfs_doio(ap->a_vp, bio, proc0.p_ucred, td);
	return (error);
}
コード例 #9
0
ファイル: nwfs_vnops.c プロジェクト: mihaicarabas/dragonfly
/*
 * nwfs_create call
 * Create a regular file. On entry the directory to contain the file being
 * created is locked.  We must release before we return. 
 *
 * nwfs_create(struct vnode *a_dvp, struct vnode **a_vpp,
 *		struct componentname *a_cnpl, struct vattr *a_vap)
 */
static int
nwfs_create(struct vop_old_create_args *ap)
{
	struct vnode *dvp = ap->a_dvp;
	struct vattr *vap = ap->a_vap;
	struct vnode **vpp=ap->a_vpp;
	struct componentname *cnp = ap->a_cnp;
	struct vnode *vp = NULL;
	int error = 0, fmode;
	struct vattr vattr;
	struct nwnode *np;
	struct ncp_open_info no;
	struct nwmount *nmp=VTONWFS(dvp);
	ncpfid fid;
	

	NCPVNDEBUG("\n");
	*vpp = NULL;
	if (vap->va_type == VSOCK)
		return (EOPNOTSUPP);
	if ((error = VOP_GETATTR(dvp, &vattr))) {
		return (error);
	}
	fmode = AR_READ | AR_WRITE;
/*	if (vap->va_vaflags & VA_EXCLUSIVE)
		fmode |= AR_DENY_READ | AR_DENY_WRITE;*/
	
	error = ncp_open_create_file_or_subdir(nmp,dvp,cnp->cn_namelen,cnp->cn_nameptr, 
			   OC_MODE_CREATE | OC_MODE_OPEN | OC_MODE_REPLACE,
			   0, fmode, &no, cnp->cn_td, cnp->cn_cred);
	if (!error) {
		error = ncp_close_file(NWFSTOCONN(nmp), &no.fh, cnp->cn_td,cnp->cn_cred);
		fid.f_parent = VTONW(dvp)->n_fid.f_id;
		fid.f_id = no.fattr.dirEntNum;
		error = nwfs_nget(VTOVFS(dvp), fid, &no.fattr, dvp, &vp);
		if (!error) {
			np = VTONW(vp);
			np->opened = 0;
			*vpp = vp;
		}
	}
	return (error);
}
コード例 #10
0
ファイル: nwfs_io.c プロジェクト: dcui/FreeBSD-9.3_kernel
static int
nwfs_readvdir(struct vnode *vp, struct uio *uio, struct ucred *cred) {
	struct nwmount *nmp = VTONWFS(vp);
	int error, count, i;
	struct dirent dp;
	struct nwnode *np = VTONW(vp);
	struct nw_entry_info fattr;
	struct vnode *newvp;
	struct componentname cn;
	ncpfid fid;

	np = VTONW(vp);
	NCPVNDEBUG("dirname='%s'\n",np->n_name);
	if (uio->uio_resid < DE_SIZE || (uio->uio_offset < 0))
		return (EINVAL);
	error = 0;
	count = 0;
	i = uio->uio_offset / DE_SIZE; /* offset in directory */
	if (i == 0) {
		error = ncp_initsearch(vp, uio->uio_td, cred);
		if (error) {
			NCPVNDEBUG("cannot initialize search, error=%d",error);
			return( error );
		}
	}

	for (; uio->uio_resid >= DE_SIZE; i++) {
		bzero((char *) &dp, DE_SIZE);
		dp.d_reclen = DE_SIZE;
		switch (i) {
		    case 0:		/* `.' */
		    case 1:		/* `..' */
			dp.d_fileno = (i == 0) ? np->n_fid.f_id : np->n_parent.f_id;
			if (!dp.d_fileno) dp.d_fileno = NWFS_ROOT_INO;
			dp.d_namlen = i + 1;
			dp.d_name[0] = '.';
			dp.d_name[1] = '.';
			dp.d_name[i + 1] = '\0';
			dp.d_type = DT_DIR;
			break;
		    default:
			error = ncp_search_for_file_or_subdir(nmp, &np->n_seq, &fattr, uio->uio_td, cred);
			if (error && error < 0x80) break;
			dp.d_fileno = fattr.dirEntNum;
			dp.d_type = (fattr.attributes & aDIR) ? DT_DIR : DT_REG;
			dp.d_namlen = fattr.nameLen;
			bcopy(fattr.entryName, dp.d_name, dp.d_namlen);
			dp.d_name[dp.d_namlen] = '\0';
#if 0
			if (error && eofflag) {
			/*	*eofflag = 1;*/
				break;
			}
#endif
			break;
		}
		if (nwfs_fastlookup && !error && i > 1) {
			fid.f_id = fattr.dirEntNum;
			fid.f_parent = np->n_fid.f_id;
			error = nwfs_nget(vp->v_mount, fid, &fattr, vp, &newvp);
			if (!error) {
				VTONW(newvp)->n_ctime = VTONW(newvp)->n_vattr.va_ctime.tv_sec;
				cn.cn_nameptr = dp.d_name;
				cn.cn_namelen = dp.d_namlen;
				cache_enter(vp, newvp, &cn);
				vput(newvp);
			} else
				error = 0;
		}
		if (error >= 0x80) {
		    error = 0;
		    break;
		}
		if ((error = uiomove(&dp, DE_SIZE, uio)))
			break;
	}

	uio->uio_offset = i * DE_SIZE;
	return (error);
}
コード例 #11
0
ファイル: nwfs_vnops.c プロジェクト: mihaicarabas/dragonfly
/*
 * How to keep the brain busy ...
 * Currently lookup routine can make two lookup for vnode. This can be
 * avoided by reorg the code.
 *
 * nwfs_lookup(struct vnode *a_dvp, struct vnode **a_vpp,
 *	       struct componentname *a_cnp)
 */
int
nwfs_lookup(struct vop_old_lookup_args *ap)
{
	struct componentname *cnp = ap->a_cnp;
	struct vnode *dvp = ap->a_dvp;
	struct vnode **vpp = ap->a_vpp;
	int flags = cnp->cn_flags;
	struct vnode *vp;
	struct nwmount *nmp;
	struct mount *mp = dvp->v_mount;
	struct nwnode *dnp, *npp;
	struct nw_entry_info fattr, *fap;
	ncpfid fid;
	int nameiop=cnp->cn_nameiop;
	int lockparent, wantparent, error = 0, notfound;
	struct thread *td = cnp->cn_td;
	char _name[cnp->cn_namelen+1];
	bcopy(cnp->cn_nameptr,_name,cnp->cn_namelen);
	_name[cnp->cn_namelen]=0;
	
	if (dvp->v_type != VDIR)
		return (ENOTDIR);
	if ((flags & CNP_ISDOTDOT) && (dvp->v_flag & VROOT)) {
		kprintf("nwfs_lookup: invalid '..'\n");
		return EIO;
	}

	NCPVNDEBUG("%d '%s' in '%s' id=d\n", nameiop, _name, 
		VTONW(dvp)->n_name/*, VTONW(dvp)->n_name*/);

	if ((mp->mnt_flag & MNT_RDONLY) && nameiop != NAMEI_LOOKUP)
		return (EROFS);
	if ((error = VOP_EACCESS(dvp, VEXEC, cnp->cn_cred)))
		return (error);
	lockparent = flags & CNP_LOCKPARENT;
	wantparent = flags & (CNP_LOCKPARENT | CNP_WANTPARENT);
	nmp = VFSTONWFS(mp);
	dnp = VTONW(dvp);
/*
kprintf("dvp %d:%d:%d\n", (int)mp, (int)dvp->v_flag & VROOT, (int)flags & CNP_ISDOTDOT);
*/
	error = ncp_pathcheck(cnp->cn_nameptr, cnp->cn_namelen, &nmp->m.nls, 
	    (nameiop == NAMEI_CREATE || nameiop == NAMEI_RENAME) && (nmp->m.nls.opt & NWHP_NOSTRICT) == 0);
	if (error) 
	    return ENOENT;

	error = 0;
	*vpp = NULLVP;
	fap = NULL;
	if (flags & CNP_ISDOTDOT) {
		if (NWCMPF(&dnp->n_parent, &nmp->n_rootent)) {
			fid = nmp->n_rootent;
			fap = NULL;
			notfound = 0;
		} else {
			error = nwfs_lookupnp(nmp, dnp->n_parent, td, &npp);
			if (error) {
				return error;
			}
			fid = dnp->n_parent;
			fap = &fattr;
			/*np = *npp;*/
			notfound = ncp_obtain_info(nmp, npp->n_dosfid,
			    0, NULL, fap, td, cnp->cn_cred);
		}
	} else {
		fap = &fattr;
		notfound = ncp_lookup(dvp, cnp->cn_namelen, cnp->cn_nameptr,
			fap, td, cnp->cn_cred);
		fid.f_id = fap->dirEntNum;
		if (cnp->cn_namelen == 1 && cnp->cn_nameptr[0] == '.') {
			fid.f_parent = dnp->n_fid.f_parent;
		} else
			fid.f_parent = dnp->n_fid.f_id;
		NCPVNDEBUG("call to ncp_lookup returned=%d\n",notfound);
	}
	if (notfound && notfound < 0x80 )
		return (notfound);	/* hard error */
	if (notfound) { /* entry not found */
		/* Handle RENAME or CREATE case... */
		if ((nameiop == NAMEI_CREATE || nameiop == NAMEI_RENAME) && wantparent) {
			if (!lockparent)
				vn_unlock(dvp);
			return (EJUSTRETURN);
		}
		return ENOENT;
	}/* else {
		NCPVNDEBUG("Found entry %s with id=%d\n", fap->entryName, fap->dirEntNum);
	}*/
	/* handle DELETE case ... */
	if (nameiop == NAMEI_DELETE) { 	/* delete last component */
		error = VOP_EACCESS(dvp, VWRITE, cnp->cn_cred);
		if (error) return (error);
		if (NWCMPF(&dnp->n_fid, &fid)) {	/* we found ourselfs */
			vref(dvp);
			*vpp = dvp;
			return 0;
		}
		error = nwfs_nget(mp, fid, fap, dvp, &vp);
		if (error) return (error);
		*vpp = vp;
		if (!lockparent) vn_unlock(dvp);
		return (0);
	}
	if (nameiop == NAMEI_RENAME && wantparent) {
		error = VOP_EACCESS(dvp, VWRITE, cnp->cn_cred);
		if (error) return (error);
		if (NWCMPF(&dnp->n_fid, &fid)) return EISDIR;
		error = nwfs_nget(mp, fid, fap, dvp, &vp);
		if (error) return (error);
		*vpp = vp;
		if (!lockparent)
			vn_unlock(dvp);
		return (0);
	}
	if (flags & CNP_ISDOTDOT) {
		vn_unlock(dvp);	/* race to get the inode */
		error = nwfs_nget(mp, fid, NULL, NULL, &vp);
		if (error) {
			vn_lock(dvp, LK_EXCLUSIVE | LK_RETRY);
			return (error);
		}
		if (lockparent) {
			error = vn_lock(dvp, LK_EXCLUSIVE | LK_FAILRECLAIM);
			if (error) {
				vput(vp);
				return (error);
			}
		}
		*vpp = vp;
	} else if (NWCMPF(&dnp->n_fid, &fid)) {
		vref(dvp);
		*vpp = dvp;
	} else {
		error = nwfs_nget(mp, fid, fap, dvp, &vp);
		if (error) return (error);
		*vpp = vp;
		NCPVNDEBUG("lookup: getnewvp!\n");
		if (!lockparent)
			vn_unlock(dvp);
	}
#if 0
	/* XXX MOVE TO NREMOVE */
	if ((cnp->cn_flags & CNP_MAKEENTRY)) {
		VTONW(*vpp)->n_ctime = VTONW(*vpp)->n_vattr.va_ctime.tv_sec;
		/* XXX */
	}
#endif
	return (0);
}
コード例 #12
0
ファイル: nwfs_vnops.c プロジェクト: mihaicarabas/dragonfly
/* ARGSUSED */
static int
nwfs_open(struct vop_open_args *ap)
{
 	thread_t td = curthread; /* XXX */
	struct vnode *vp = ap->a_vp;
	int mode = ap->a_mode;
	struct nwnode *np = VTONW(vp);
	struct ncp_open_info no;
	struct nwmount *nmp = VTONWFS(vp);
	struct vattr vattr;
	int error, nwm;

	NCPVNDEBUG("%s,%d\n",np->n_name, np->opened);
	if (vp->v_type != VREG && vp->v_type != VDIR) { 
		NCPFATAL("open vtype = %d\n", vp->v_type);
		return (EACCES);
	}
	if (vp->v_type == VDIR) return 0;	/* nothing to do now */
	if (np->n_flag & NMODIFIED) {
		if ((error = nwfs_vinvalbuf(vp, V_SAVE, 1)) == EINTR)
			return (error);
		np->n_atime = 0;
		error = VOP_GETATTR(vp, &vattr);
		if (error) 
			return (error);
		np->n_mtime = vattr.va_mtime.tv_sec;
	} else {
		error = VOP_GETATTR(vp, &vattr);
		if (error) 
			return (error);
		if (np->n_mtime != vattr.va_mtime.tv_sec) {
			if ((error = nwfs_vinvalbuf(vp, V_SAVE,	1)) == EINTR)
				return (error);
			np->n_mtime = vattr.va_mtime.tv_sec;
		}
	}
	if (np->opened) {
		np->opened++;
		return (vop_stdopen(ap));
	}
	nwm = AR_READ;
	if ((vp->v_mount->mnt_flag & MNT_RDONLY) == 0)
		nwm |= AR_WRITE;
	error = ncp_open_create_file_or_subdir(nmp, vp, 0, NULL, OC_MODE_OPEN,
					       0, nwm, &no, td, ap->a_cred);
	if (error) {
		if (mode & FWRITE)
			return EACCES;
		nwm = AR_READ;
		error = ncp_open_create_file_or_subdir(nmp, vp, 0, NULL, OC_MODE_OPEN, 0,
						   nwm, &no, td, ap->a_cred);
	}
	np->n_atime = 0;
	if (error == 0) {
		np->opened++;
		np->n_fh = no.fh;
		np->n_origfh = no.origfh;
		error = vop_stdopen(ap);
	}
	return (error);
}
コード例 #13
0
ファイル: nwfs_io.c プロジェクト: mihaicarabas/dragonfly
static int
nwfs_readvdir(struct vnode *vp, struct uio *uio, struct ucred *cred)
{
	struct nwmount *nmp = VTONWFS(vp);
	int error, i;
	struct nwnode *np;
	struct nw_entry_info fattr;
	struct vnode *newvp;
	ncpfid fid;
	ino_t d_ino;
	size_t d_namlen;
	const char *d_name;
	uint8_t d_type;

	np = VTONW(vp);
	NCPVNDEBUG("dirname='%s'\n",np->n_name);
	if (uio->uio_offset < 0 || uio->uio_offset > INT_MAX)
		return (EINVAL);
	error = 0;
	i = (int)uio->uio_offset; /* offset in directory */
	if (i == 0) {
		error = ncp_initsearch(vp, uio->uio_td, cred);
		if (error) {
			NCPVNDEBUG("cannot initialize search, error=%d",error);
			return( error );
		}
	}

	for (; !error && uio->uio_resid > 0; i++) {
		switch (i) {
		    case 0:		/* `.' */
			d_ino = np->n_fid.f_id;
			if (d_ino == 0)
				d_ino = NWFS_ROOT_INO;
			d_namlen = 1;
			d_name = ".";
			d_type = DT_DIR;
			break;
		    case 1:		/* `..' */
			d_ino = np->n_parent.f_id;
			if (d_ino == 0)
				d_ino = NWFS_ROOT_INO;
			d_namlen = 2;
			d_name = "..";
			d_type = DT_DIR;
			break;
		    default:
			error = ncp_search_for_file_or_subdir(nmp, &np->n_seq, &fattr, uio->uio_td, cred);
			if (error && error < 0x80)
				goto done;
			d_ino = fattr.dirEntNum;
			d_type = (fattr.attributes & aDIR) ? DT_DIR : DT_REG;
			d_namlen = fattr.nameLen;
			d_name = fattr.entryName;
#if 0
			if (error && eofflag) {
			/*	*eofflag = 1;*/
			        break;
			}
#endif
			break;
		}
		if (nwfs_fastlookup && !error && i > 1) {
			fid.f_id = fattr.dirEntNum;
			fid.f_parent = np->n_fid.f_id;
			error = nwfs_nget(vp->v_mount, fid, &fattr, vp, &newvp);
			if (!error) {
				VTONW(newvp)->n_ctime = VTONW(newvp)->n_vattr.va_ctime.tv_sec;
				vput(newvp);
			} else
				error = 0;
		}
		if (error >= 0x80) {
		    error = 0;
		    break;
		}
		if (vop_write_dirent(&error, uio, d_ino, d_type, d_namlen, d_name))
			break;
	}
done:
	uio->uio_offset = i;
	return (error);
}
コード例 #14
0
ファイル: nwfs_io.c プロジェクト: mihaicarabas/dragonfly
/*
 * Vnode op for VM putpages.
 * possible bug: all IO done in sync mode
 * Note that vop_close always invalidate pages before close, so it's
 * not necessary to open vnode.
 *
 * nwfs_putpages(struct vnode *a_vp, vm_page_t *a_m, int a_count,
 *		 int a_sync, int *a_rtvals, vm_ooffset_t a_offset)
 */
int
nwfs_putpages(struct vop_putpages_args *ap)
{
	int error;
	struct thread *td = curthread;	/* XXX */
	struct vnode *vp = ap->a_vp;
	struct ucred *cred;

#ifndef NWFS_RWCACHE
	KKASSERT(td->td_proc);
	cred = td->td_proc->p_ucred;		/* XXX */
	VOP_OPEN(vp, FWRITE, cred, NULL);
	error = vnode_pager_generic_putpages(ap->a_vp, ap->a_m, ap->a_count,
		ap->a_sync, ap->a_rtvals);
	VOP_CLOSE(vp, FWRITE, cred);
	return error;
#else
	struct uio uio;
	struct iovec iov;
	vm_offset_t kva;
	struct buf *bp;
	int i, npages, count;
	int *rtvals;
	struct nwmount *nmp;
	struct nwnode *np;
	vm_page_t *pages;

	KKASSERT(td->td_proc);
	cred = td->td_proc->p_ucred;		/* XXX */

/*	VOP_OPEN(vp, FWRITE, cred, NULL);*/
	np = VTONW(vp);
	nmp = VFSTONWFS(vp->v_mount);
	pages = ap->a_m;
	count = ap->a_count;
	rtvals = ap->a_rtvals;
	npages = btoc(count);

	for (i = 0; i < npages; i++) {
		rtvals[i] = VM_PAGER_AGAIN;
	}

	bp = getpbuf_kva(&nwfs_pbuf_freecnt);
	kva = (vm_offset_t) bp->b_data;
	pmap_qenter(kva, pages, npages);

	iov.iov_base = (caddr_t) kva;
	iov.iov_len = count;
	uio.uio_iov = &iov;
	uio.uio_iovcnt = 1;
	uio.uio_offset = IDX_TO_OFF(pages[0]->pindex);
	uio.uio_resid = count;
	uio.uio_segflg = UIO_SYSSPACE;
	uio.uio_rw = UIO_WRITE;
	uio.uio_td = td;
	NCPVNDEBUG("ofs=%d,resid=%d\n",(int)uio.uio_offset, uio.uio_resid);

	error = ncp_write(NWFSTOCONN(nmp), &np->n_fh, &uio, cred);
/*	VOP_CLOSE(vp, FWRITE, cred);*/
	NCPVNDEBUG("paged write done: %d\n", error);

	pmap_qremove(kva, npages);
	relpbuf(bp, &nwfs_pbuf_freecnt);

	if (!error) {
		int nwritten = round_page(count - uio.uio_resid) / PAGE_SIZE;
		for (i = 0; i < nwritten; i++) {
			rtvals[i] = VM_PAGER_OK;
			vm_page_undirty(pages[i]);
		}
	}
	return rtvals[0];
#endif /* NWFS_RWCACHE */
}