[dragonfly.git] / sys / vfs / nwfs / nwfs_vfsops.c

/*
 * Copyright (c) 1999, 2000 Boris Popov
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *    This product includes software developed by Boris Popov.
 * 4. Neither the name of the author nor the names of any co-contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * $FreeBSD: src/sys/nwfs/nwfs_vfsops.c,v 1.6.2.6 2001/10/25 19:18:54 dillon Exp $
 * $DragonFly: src/sys/vfs/nwfs/nwfs_vfsops.c,v 1.30 2008/01/06 16:55:53 swildner Exp $
 */
#include "opt_ncp.h"
#ifndef NCP
#error "NWFS requires NCP protocol"
#endif

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/proc.h>
#include <sys/kernel.h>
#include <sys/sysctl.h>
#include <sys/vnode.h>
#include <sys/mount.h>
#include <sys/stat.h>
#include <sys/malloc.h>
#include <sys/buf.h>

#include <netproto/ncp/ncp.h>
#include <netproto/ncp/ncp_conn.h>
#include <netproto/ncp/ncp_subr.h>
#include <netproto/ncp/ncp_ncp.h>
#include <netproto/ncp/ncp_nls.h>

#include "nwfs.h"
#include "nwfs_node.h"
#include "nwfs_subr.h"

extern struct vop_ops nwfs_vnode_vops;

int nwfs_debuglevel = 0;

static int nwfs_version = NWFS_VERSION;

SYSCTL_DECL(_vfs_nwfs);
SYSCTL_NODE(_vfs, OID_AUTO, nwfs, CTLFLAG_RW, 0, "Netware file system");
SYSCTL_INT(_vfs_nwfs, OID_AUTO, version, CTLFLAG_RD, &nwfs_version, 0, "");
SYSCTL_INT(_vfs_nwfs, OID_AUTO, debuglevel, CTLFLAG_RW, &nwfs_debuglevel, 0, "");

static int nwfs_mount(struct mount *, char *, caddr_t, struct ucred *);
static int nwfs_root(struct mount *, struct vnode **);
static int nwfs_statfs(struct mount *, struct statfs *, struct ucred *);
static int nwfs_sync(struct mount *, int);
static int nwfs_unmount(struct mount *, int);
static int nwfs_init(struct vfsconf *vfsp);
static int nwfs_uninit(struct vfsconf *vfsp);

static struct vfsops nwfs_vfsops = {
	.vfs_mount =    	nwfs_mount,
	.vfs_unmount =   	nwfs_unmount,
	.vfs_root =     	nwfs_root,
	.vfs_statfs =    	nwfs_statfs,
	.vfs_sync =    		nwfs_sync,
	.vfs_init =    		nwfs_init,
	.vfs_uninit =    	nwfs_uninit
};


VFS_SET(nwfs_vfsops, nwfs, VFCF_NETWORK);

int nwfs_pbuf_freecnt = -1;	/* start out unlimited */
static int nwfsid = 1;

static int
nwfs_initnls(struct nwmount *nmp) {
	char	*pc, *pe;
	int	error = 0;
#define COPY_TABLE(t,d)	{ \
		if (t) { \
			error = copyin((t), pc, 256); \
			if (error) break; \
		} else \
			bcopy(d, pc, 256); \
		(t) = pc; pc += 256; \
	}

	nmp->m.nls.opt |= NWHP_NLS | NWHP_DOS;
	if ((nmp->m.flags & NWFS_MOUNT_HAVE_NLS) == 0) {
		nmp->m.nls.to_lower = ncp_defnls.to_lower;
		nmp->m.nls.to_upper = ncp_defnls.to_upper;
		nmp->m.nls.n2u = ncp_defnls.n2u;
		nmp->m.nls.u2n = ncp_defnls.u2n;
		return 0;
	}
	MALLOC(pe, char *, 256 * 4, M_NWFSDATA, M_WAITOK);
	pc = pe;
	do {
		COPY_TABLE(nmp->m.nls.to_lower, ncp_defnls.to_lower);
		COPY_TABLE(nmp->m.nls.to_upper, ncp_defnls.to_upper);
		COPY_TABLE(nmp->m.nls.n2u, ncp_defnls.n2u);
		COPY_TABLE(nmp->m.nls.u2n, ncp_defnls.u2n);
	} while(0);
	if (error) {
		kfree(pe, M_NWFSDATA);
		return error;
	}
	return 0;
}
/*
 * mp - path - addr in user space of mount point (ie /usr or whatever)
 * data - addr in user space of mount params 
 */
static int
nwfs_mount(struct mount *mp, char *path, caddr_t data, struct ucred *cred)
{
	struct nwfs_args args; 	  /* will hold data from mount request */
	int error;
	struct nwmount *nmp = NULL;
	struct ncp_conn *conn = NULL;
	struct ncp_handle *handle = NULL;
	struct vnode *vp;
	char *pc,*pe;

	if (data == NULL) {
		nwfs_printf("missing data argument\n");
		return 1;
	}
	if (mp->mnt_flag & MNT_UPDATE) {
		nwfs_printf("MNT_UPDATE not implemented");
		return (EOPNOTSUPP);
	}
	error = copyin(data, (caddr_t)&args, sizeof(struct nwfs_args));
	if (error)
		return (error);
	if (args.version != NWFS_VERSION) {
		nwfs_printf("mount version mismatch: kernel=%d, mount=%d\n",NWFS_VERSION,args.version);
		return (1);
	}
	error = ncp_conn_getbyref(args.connRef,curthread,cred,NCPM_EXECUTE,&conn);
	if (error) {
		nwfs_printf("invalid connection reference %d\n",args.connRef);
		return (error);
	}
	error = ncp_conn_gethandle(conn, NULL, &handle);
	if (error) {
		nwfs_printf("can't get connection handle\n");
		return (error);
	}
	ncp_conn_unlock(conn,curthread);	/* we keep the ref */
	mp->mnt_stat.f_iosize = conn->buffer_size;
        /* We must malloc our own mount info */
        MALLOC(nmp,struct nwmount *,sizeof(struct nwmount),M_NWFSDATA, M_WAITOK|M_USE_RESERVE|M_ZERO);
        mp->mnt_data = (qaddr_t)nmp;
	nmp->connh = handle;
	nmp->n_root = NULL;
	nmp->n_id = nwfsid++;
        nmp->m = args;
	nmp->m.file_mode = (nmp->m.file_mode &
			    (S_IRWXU|S_IRWXG|S_IRWXO)) | S_IFREG;
	nmp->m.dir_mode  = (nmp->m.dir_mode &
			    (S_IRWXU|S_IRWXG|S_IRWXO)) | S_IFDIR;
	if ((error = nwfs_initnls(nmp)) != 0) goto bad;
	pc = mp->mnt_stat.f_mntfromname;
	pe = pc+sizeof(mp->mnt_stat.f_mntfromname);
	bzero(pc, MNAMELEN);
	*(pc++) = '/';
	pc = index(strncpy(pc, conn->li.server, pe-pc-2),0);
	if (pc < pe-1) {
		*(pc++) = ':';
		pc=index(strncpy(pc, conn->li.user, pe-pc-2),0);
		if (pc < pe-1) {
			*(pc++) = '/';
			strncpy(pc, nmp->m.mounted_vol, pe-pc-2);
		}
	}
	/* protect against invalid mount points */
	nmp->m.mount_point[sizeof(nmp->m.mount_point)-1] = '\0';

	vfs_add_vnodeops(mp, &nwfs_vnode_vops, &mp->mnt_vn_norm_ops);

	vfs_getnewfsid(mp);
	error = nwfs_root(mp, &vp);
	if (error)
		goto bad;
	/*
	 * Lose the lock but keep the ref.
	 */
	vn_unlock(vp);
	NCPVODEBUG("rootvp.vrefcnt=%d\n",vp->v_sysref.refcnt);
	return error;
bad:
        if (nmp)
		kfree(nmp, M_NWFSDATA);
	if (handle)
		ncp_conn_puthandle(handle, NULL, 0);
        return error;
}

/* Unmount the filesystem described by mp. */
static int
nwfs_unmount(struct mount *mp, int mntflags)
{
	struct nwmount *nmp = VFSTONWFS(mp);
	struct ncp_conn *conn;
	int error, flags;

	NCPVODEBUG("nwfs_unmount: flags=%04x\n",mntflags);
	flags = 0;
	if (mntflags & MNT_FORCE)
		flags |= FORCECLOSE;
	/* There is 1 extra root vnode reference from nwfs_mount(). */
	error = vflush(mp, 1, flags);
	if (error)
		return (error);
	conn = NWFSTOCONN(nmp);
	ncp_conn_puthandle(nmp->connh,NULL,0);
	if (ncp_conn_lock(conn, curthread, proc0.p_ucred, NCPM_WRITE | NCPM_EXECUTE) == 0) {
		if(ncp_disconnect(conn))
			ncp_conn_unlock(conn, curthread);
	}
	mp->mnt_data = (qaddr_t)0;
	if (nmp->m.flags & NWFS_MOUNT_HAVE_NLS)
		kfree(nmp->m.nls.to_lower, M_NWFSDATA);
	kfree(nmp, M_NWFSDATA);
	mp->mnt_flag &= ~MNT_LOCAL;
	return (error);
}

/*  Return locked vnode to root of a filesystem */
static int
nwfs_root(struct mount *mp, struct vnode **vpp)
{
	struct vnode *vp;
	struct nwmount *nmp;
	struct nwnode *np;
	struct ncp_conn *conn;
	struct nw_entry_info fattr;
	struct thread *td = curthread;	/* XXX */
	struct ucred *cred;
	int error, nsf, opt;
	u_char vol;

	KKASSERT(td->td_proc);
	cred = td->td_proc->p_ucred;

	nmp = VFSTONWFS(mp);
	conn = NWFSTOCONN(nmp);
	if (nmp->n_root) {
		*vpp = NWTOV(nmp->n_root);
		while (vget(*vpp, LK_EXCLUSIVE) != 0) /* XXX */
			;
		return 0;
	}
	error = ncp_lookup_volume(conn, nmp->m.mounted_vol, &vol, 
		&nmp->n_rootent.f_id, td, cred);
	if (error)
		return ENOENT;
	nmp->n_volume = vol;
	error = ncp_get_namespaces(conn, vol, &nsf, td, cred);
	if (error)
		return ENOENT;
	if (nsf & NW_NSB_OS2) {
		NCPVODEBUG("volume %s has os2 namespace\n",nmp->m.mounted_vol);
		if ((nmp->m.flags & NWFS_MOUNT_NO_OS2) == 0) {
			nmp->name_space = NW_NS_OS2;
			nmp->m.nls.opt &= ~NWHP_DOS;
		}
	}
	opt = nmp->m.nls.opt;
	nsf = opt & (NWHP_UPPER | NWHP_LOWER);
	if (opt & NWHP_DOS) {
		if (nsf == (NWHP_UPPER | NWHP_LOWER)) {
			nmp->m.nls.opt &= ~(NWHP_LOWER | NWHP_UPPER);
		} else if (nsf == 0) {
			nmp->m.nls.opt |= NWHP_LOWER;
		}
	} else {
		if (nsf == (NWHP_UPPER | NWHP_LOWER)) {
			nmp->m.nls.opt &= ~(NWHP_LOWER | NWHP_UPPER);
		}
	}
	if (nmp->m.root_path[0]) {
		nmp->m.root_path[0]--;
		error = ncp_obtain_info(nmp, nmp->n_rootent.f_id,
		    -nmp->m.root_path[0], nmp->m.root_path, &fattr, td, cred);
		if (error) {
			NCPFATAL("Invalid root path specified\n");
			return ENOENT;
		}
		nmp->n_rootent.f_parent = fattr.dirEntNum;
		nmp->m.root_path[0]++;
		error = ncp_obtain_info(nmp, nmp->n_rootent.f_id,
		    -nmp->m.root_path[0], nmp->m.root_path, &fattr, td, cred);
		if (error) {
			NCPFATAL("Invalid root path specified\n");
			return ENOENT;
		}
		nmp->n_rootent.f_id = fattr.dirEntNum;
	} else {
		error = ncp_obtain_info(nmp, nmp->n_rootent.f_id,
		    0, NULL, &fattr, td, cred);
		if (error) {
			NCPFATAL("Can't obtain volume info\n");
			return ENOENT;
		}
		fattr.nameLen = strlen(strcpy(fattr.entryName, NWFS_ROOTVOL));
		nmp->n_rootent.f_parent = nmp->n_rootent.f_id;
	}
	error = nwfs_nget(mp, nmp->n_rootent, &fattr, NULL, &vp);
	if (error)
		return (error);
	vp->v_flag |= VROOT;
	np = VTONW(vp);
	if (nmp->m.root_path[0] == 0)
		np->n_flag |= NVOLUME;
	nmp->n_root = np;
/*	error = VOP_GETATTR(vp, &vattr);
	if (error) {
		vput(vp);
		NCPFATAL("Can't get root directory entry\n");
		return error;
	}*/
	*vpp = vp;
	return (0);
}

/*ARGSUSED*/
int
nwfs_init(struct vfsconf *vfsp)
{
#ifndef SMP
	int name[2];
	int ncpu, error;
	size_t olen, plen;

	name[0] = CTL_HW;
	name[1] = HW_NCPU;
	error = kernel_sysctl(name, 2, &ncpu, &olen, NULL, 0, &plen);
	if (error == 0 && ncpu > 1)
		kprintf("warning: nwfs module compiled without SMP support.");
#endif
	nwfs_hash_init();
	nwfs_pbuf_freecnt = nswbuf / 2 + 1;
	NCPVODEBUG("always happy to load!\n");
	return (0);
}

/*ARGSUSED*/
int
nwfs_uninit(struct vfsconf *vfsp)
{

	nwfs_hash_free();
	NCPVODEBUG("unloaded\n");
	return (0);
}

/*
 * nwfs_statfs call
 */
int
nwfs_statfs(struct mount *mp, struct statfs *sbp, struct ucred *cred)
{
	struct nwmount *nmp = VFSTONWFS(mp);
	int error = 0, secsize;
	struct nwnode *np = nmp->n_root;
	struct ncp_volume_info vi;

	if (np == NULL) return EINVAL;
	error = ncp_get_volume_info_with_number(NWFSTOCONN(nmp), nmp->n_volume,
						&vi, curthread, cred);
	if (error) return error;
	secsize = 512;			/* XXX how to get real value ??? */
	sbp->f_spare2=0;		/* placeholder */
	/* fundamental file system block size */
	sbp->f_bsize = vi.sectors_per_block*secsize;
	/* optimal transfer block size */
	sbp->f_iosize = NWFSTOCONN(nmp)->buffer_size;
	/* total data blocks in file system */
	sbp->f_blocks= vi.total_blocks;
	/* free blocks in fs */
	sbp->f_bfree = vi.free_blocks + vi.purgeable_blocks;
	/* free blocks avail to non-superuser */
	sbp->f_bavail= vi.free_blocks+vi.purgeable_blocks;
	/* total file nodes in file system */
	sbp->f_files = vi.total_dir_entries;
	/* free file nodes in fs */
	sbp->f_ffree = vi.available_dir_entries;
	sbp->f_flags = 0;		/* copy of mount exported flags */
	if (sbp != &mp->mnt_stat) {
		sbp->f_fsid = mp->mnt_stat.f_fsid;	/* file system id */
		sbp->f_owner = mp->mnt_stat.f_owner;	/* user that mounted the filesystem */
		sbp->f_type = mp->mnt_vfc->vfc_typenum;	/* type of filesystem */
		bcopy(mp->mnt_stat.f_mntfromname, sbp->f_mntfromname, MNAMELEN);
	}
	strncpy(sbp->f_fstypename, mp->mnt_vfc->vfc_name, MFSNAMELEN);
	return 0;
}

/*
 * Flush out the buffer cache
 */
/* ARGSUSED */
static int
nwfs_sync(struct mount *mp, int waitfor)
{
	struct vnode *vp;
	int error, allerror = 0;
	/*
	 * Force stale buffer cache information to be flushed.
	 */
loop:
	for (vp = TAILQ_FIRST(&mp->mnt_nvnodelist);
	     vp != NULL;
	     vp = TAILQ_NEXT(vp, v_nmntvnodes)) {
		/*
		 * If the vnode that we are about to sync is no longer
		 * associated with this mount point, start over.
		 */
		if (vp->v_mount != mp)
			goto loop;
		if (vn_islocked(vp) || RB_EMPTY(&vp->v_rbdirty_tree) ||
		    waitfor == MNT_LAZY)
			continue;
		if (vget(vp, LK_EXCLUSIVE))
			goto loop;
		/* XXX vp may not be retained */
		error = VOP_FSYNC(vp, waitfor);
		if (error)
			allerror = error;
		vput(vp);
	}
	return (allerror);
}
Commit	Line	Data
984263bc MD	1	/*
	2	* Copyright (c) 1999, 2000 Boris Popov
	3	* All rights reserved.
	4	*
	5	* Redistribution and use in source and binary forms, with or without
	6	* modification, are permitted provided that the following conditions
	7	* are met:
	8	* 1. Redistributions of source code must retain the above copyright
	9	* notice, this list of conditions and the following disclaimer.
	10	* 2. Redistributions in binary form must reproduce the above copyright
	11	* notice, this list of conditions and the following disclaimer in the
	12	* documentation and/or other materials provided with the distribution.
	13	* 3. All advertising materials mentioning features or use of this software
	14	* must display the following acknowledgement:
	15	* This product includes software developed by Boris Popov.
	16	* 4. Neither the name of the author nor the names of any co-contributors
	17	* may be used to endorse or promote products derived from this software
	18	* without specific prior written permission.
	19	*
	20	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
	21	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	22	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	23	* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
	24	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	25	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	26	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	27	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	28	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	29	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	30	* SUCH DAMAGE.
	31	*
	32	* $FreeBSD: src/sys/nwfs/nwfs_vfsops.c,v 1.6.2.6 2001/10/25 19:18:54 dillon Exp $
978400d3	33	* $DragonFly: src/sys/vfs/nwfs/nwfs_vfsops.c,v 1.30 2008/01/06 16:55:53 swildner Exp $
984263bc MD	34	*/
	35	#include "opt_ncp.h"
	36	#ifndef NCP
	37	#error "NWFS requires NCP protocol"
	38	#endif
	39
	40	#include <sys/param.h>
	41	#include <sys/systm.h>
	42	#include <sys/proc.h>
	43	#include <sys/kernel.h>
	44	#include <sys/sysctl.h>
	45	#include <sys/vnode.h>
	46	#include <sys/mount.h>
	47	#include <sys/stat.h>
	48	#include <sys/malloc.h>
	49	#include <sys/buf.h>
	50
d2438d69 MD	51	#include <netproto/ncp/ncp.h>
	52	#include <netproto/ncp/ncp_conn.h>
	53	#include <netproto/ncp/ncp_subr.h>
	54	#include <netproto/ncp/ncp_ncp.h>
	55	#include <netproto/ncp/ncp_nls.h>
984263bc	56
1f2de5d4 MD	57	#include "nwfs.h"
	58	#include "nwfs_node.h"
	59	#include "nwfs_subr.h"
984263bc	60
66a1ddf5	61	extern struct vop_ops nwfs_vnode_vops;
0961aa92	62
984263bc MD	63	int nwfs_debuglevel = 0;
	64
	65	static int nwfs_version = NWFS_VERSION;
	66
	67	SYSCTL_DECL(_vfs_nwfs);
	68	SYSCTL_NODE(_vfs, OID_AUTO, nwfs, CTLFLAG_RW, 0, "Netware file system");
	69	SYSCTL_INT(_vfs_nwfs, OID_AUTO, version, CTLFLAG_RD, &nwfs_version, 0, "");
	70	SYSCTL_INT(_vfs_nwfs, OID_AUTO, debuglevel, CTLFLAG_RW, &nwfs_debuglevel, 0, "");
	71
acde96db	72	static int nwfs_mount(struct mount , char , caddr_t, struct ucred *);
984263bc	73	static int nwfs_root(struct mount , struct vnode *);
acde96db	74	static int nwfs_statfs(struct mount , struct statfs , struct ucred *);
87de5057	75	static int nwfs_sync(struct mount *, int);
acde96db	76	static int nwfs_unmount(struct mount *, int);
984263bc MD	77	static int nwfs_init(struct vfsconf *vfsp);
	78	static int nwfs_uninit(struct vfsconf *vfsp);
	79
	80	static struct vfsops nwfs_vfsops = {
43c45e8f HP	81	.vfs_mount = nwfs_mount,
	82	.vfs_unmount = nwfs_unmount,
	83	.vfs_root = nwfs_root,
	84	.vfs_statfs = nwfs_statfs,
	85	.vfs_sync = nwfs_sync,
	86	.vfs_init = nwfs_init,
	87	.vfs_uninit = nwfs_uninit
984263bc MD	88	};
	89
	90
	91	VFS_SET(nwfs_vfsops, nwfs, VFCF_NETWORK);
	92
	93	int nwfs_pbuf_freecnt = -1; /* start out unlimited */
	94	static int nwfsid = 1;
	95
	96	static int
	97	nwfs_initnls(struct nwmount *nmp) {
	98	char pc, pe;
	99	int error = 0;
	100	#define COPY_TABLE(t,d) { \
	101	if (t) { \
	102	error = copyin((t), pc, 256); \
	103	if (error) break; \
	104	} else \
	105	bcopy(d, pc, 256); \
	106	(t) = pc; pc += 256; \
	107	}
	108
	109	nmp->m.nls.opt \|= NWHP_NLS \| NWHP_DOS;
	110	if ((nmp->m.flags & NWFS_MOUNT_HAVE_NLS) == 0) {
	111	nmp->m.nls.to_lower = ncp_defnls.to_lower;
	112	nmp->m.nls.to_upper = ncp_defnls.to_upper;
	113	nmp->m.nls.n2u = ncp_defnls.n2u;
	114	nmp->m.nls.u2n = ncp_defnls.u2n;
	115	return 0;
	116	}
	117	MALLOC(pe, char , 256 4, M_NWFSDATA, M_WAITOK);
	118	pc = pe;
	119	do {
	120	COPY_TABLE(nmp->m.nls.to_lower, ncp_defnls.to_lower);
	121	COPY_TABLE(nmp->m.nls.to_upper, ncp_defnls.to_upper);
	122	COPY_TABLE(nmp->m.nls.n2u, ncp_defnls.n2u);
	123	COPY_TABLE(nmp->m.nls.u2n, ncp_defnls.u2n);
	124	} while(0);
	125	if (error) {
efda3bd0	126	kfree(pe, M_NWFSDATA);
984263bc MD	127	return error;
	128	}
	129	return 0;
	130	}
	131	/*
	132	* mp - path - addr in user space of mount point (ie /usr or whatever)
	133	* data - addr in user space of mount params
	134	*/
a9bb80e0	135	static int
acde96db	136	nwfs_mount(struct mount mp, char path, caddr_t data, struct ucred *cred)
984263bc MD	137	{
984263bc MD	138	struct nwfs_args args; /* will hold data from mount request */
984263bc MD	139	int error;
	140	struct nwmount *nmp = NULL;
	141	struct ncp_conn *conn = NULL;
	142	struct ncp_handle *handle = NULL;
	143	struct vnode *vp;
	144	char pc,pe;
	145
	146	if (data == NULL) {
	147	nwfs_printf("missing data argument\n");
	148	return 1;
	149	}
	150	if (mp->mnt_flag & MNT_UPDATE) {
	151	nwfs_printf("MNT_UPDATE not implemented");
	152	return (EOPNOTSUPP);
	153	}
	154	error = copyin(data, (caddr_t)&args, sizeof(struct nwfs_args));
	155	if (error)
	156	return (error);
	157	if (args.version != NWFS_VERSION) {
	158	nwfs_printf("mount version mismatch: kernel=%d, mount=%d\n",NWFS_VERSION,args.version);
	159	return (1);
	160	}
acde96db	161	error = ncp_conn_getbyref(args.connRef,curthread,cred,NCPM_EXECUTE,&conn);
984263bc	162	if (error) {
3f625015	163	nwfs_printf("invalid connection reference %d\n",args.connRef);
984263bc MD	164	return (error);
	165	}
	166	error = ncp_conn_gethandle(conn, NULL, &handle);
	167	if (error) {
	168	nwfs_printf("can't get connection handle\n");
	169	return (error);
	170	}
acde96db	171	ncp_conn_unlock(conn,curthread); /* we keep the ref */
984263bc MD	172	mp->mnt_stat.f_iosize = conn->buffer_size;
984263bc MD	173	/* We must malloc our own mount info */
dc1fd4b3	174	MALLOC(nmp,struct nwmount *,sizeof(struct nwmount),M_NWFSDATA, M_WAITOK\|M_USE_RESERVE\|M_ZERO);
984263bc MD	175	mp->mnt_data = (qaddr_t)nmp;
	176	nmp->connh = handle;
	177	nmp->n_root = NULL;
	178	nmp->n_id = nwfsid++;
	179	nmp->m = args;
	180	nmp->m.file_mode = (nmp->m.file_mode &
	181	(S_IRWXU\|S_IRWXG\|S_IRWXO)) \| S_IFREG;
	182	nmp->m.dir_mode = (nmp->m.dir_mode &
	183	(S_IRWXU\|S_IRWXG\|S_IRWXO)) \| S_IFDIR;
	184	if ((error = nwfs_initnls(nmp)) != 0) goto bad;
984263bc MD	185	pc = mp->mnt_stat.f_mntfromname;
	186	pe = pc+sizeof(mp->mnt_stat.f_mntfromname);
	187	bzero(pc, MNAMELEN);
	188	*(pc++) = '/';
	189	pc = index(strncpy(pc, conn->li.server, pe-pc-2),0);
	190	if (pc < pe-1) {
	191	*(pc++) = ':';
	192	pc=index(strncpy(pc, conn->li.user, pe-pc-2),0);
	193	if (pc < pe-1) {
	194	*(pc++) = '/';
	195	strncpy(pc, nmp->m.mounted_vol, pe-pc-2);
	196	}
	197	}
	198	/* protect against invalid mount points */
	199	nmp->m.mount_point[sizeof(nmp->m.mount_point)-1] = '\0';
0961aa92	200
66a1ddf5	201	vfs_add_vnodeops(mp, &nwfs_vnode_vops, &mp->mnt_vn_norm_ops);
0961aa92	202
984263bc MD	203	vfs_getnewfsid(mp);
	204	error = nwfs_root(mp, &vp);
	205	if (error)
	206	goto bad;
	207	/*
	208	* Lose the lock but keep the ref.
	209	*/
a11aaa81	210	vn_unlock(vp);
3c37c940	211	NCPVODEBUG("rootvp.vrefcnt=%d\n",vp->v_sysref.refcnt);
984263bc MD	212	return error;
	213	bad:
	214	if (nmp)
efda3bd0	215	kfree(nmp, M_NWFSDATA);
984263bc MD	216	if (handle)
	217	ncp_conn_puthandle(handle, NULL, 0);
	218	return error;
	219	}
	220
	221	/* Unmount the filesystem described by mp. */
	222	static int
acde96db	223	nwfs_unmount(struct mount *mp, int mntflags)
984263bc MD	224	{
	225	struct nwmount *nmp = VFSTONWFS(mp);
	226	struct ncp_conn *conn;
	227	int error, flags;
	228
	229	NCPVODEBUG("nwfs_unmount: flags=%04x\n",mntflags);
	230	flags = 0;
	231	if (mntflags & MNT_FORCE)
	232	flags \|= FORCECLOSE;
	233	/* There is 1 extra root vnode reference from nwfs_mount(). */
	234	error = vflush(mp, 1, flags);
	235	if (error)
	236	return (error);
	237	conn = NWFSTOCONN(nmp);
	238	ncp_conn_puthandle(nmp->connh,NULL,0);
acde96db	239	if (ncp_conn_lock(conn, curthread, proc0.p_ucred, NCPM_WRITE \| NCPM_EXECUTE) == 0) {
984263bc	240	if(ncp_disconnect(conn))
acde96db	241	ncp_conn_unlock(conn, curthread);
984263bc MD	242	}
	243	mp->mnt_data = (qaddr_t)0;
	244	if (nmp->m.flags & NWFS_MOUNT_HAVE_NLS)
efda3bd0 MD	245	kfree(nmp->m.nls.to_lower, M_NWFSDATA);
efda3bd0 MD	246	kfree(nmp, M_NWFSDATA);
984263bc MD	247	mp->mnt_flag &= ~MNT_LOCAL;
	248	return (error);
	249	}
	250
	251	/* Return locked vnode to root of a filesystem */
	252	static int
a9bb80e0 CP	253	nwfs_root(struct mount mp, struct vnode *vpp)
a9bb80e0 CP	254	{
984263bc MD	255	struct vnode *vp;
	256	struct nwmount *nmp;
	257	struct nwnode *np;
	258	struct ncp_conn *conn;
	259	struct nw_entry_info fattr;
dadab5e9 MD	260	struct thread td = curthread; / XXX */
dadab5e9 MD	261	struct ucred *cred;
984263bc MD	262	int error, nsf, opt;
	263	u_char vol;
	264
dadab5e9 MD	265	KKASSERT(td->td_proc);
	266	cred = td->td_proc->p_ucred;
	267
984263bc MD	268	nmp = VFSTONWFS(mp);
	269	conn = NWFSTOCONN(nmp);
	270	if (nmp->n_root) {
	271	*vpp = NWTOV(nmp->n_root);
87de5057	272	while (vget(vpp, LK_EXCLUSIVE) != 0) / XXX */
984263bc MD	273	;
	274	return 0;
	275	}
	276	error = ncp_lookup_volume(conn, nmp->m.mounted_vol, &vol,
dadab5e9	277	&nmp->n_rootent.f_id, td, cred);
984263bc MD	278	if (error)
	279	return ENOENT;
	280	nmp->n_volume = vol;
dadab5e9	281	error = ncp_get_namespaces(conn, vol, &nsf, td, cred);
984263bc MD	282	if (error)
	283	return ENOENT;
	284	if (nsf & NW_NSB_OS2) {
	285	NCPVODEBUG("volume %s has os2 namespace\n",nmp->m.mounted_vol);
	286	if ((nmp->m.flags & NWFS_MOUNT_NO_OS2) == 0) {
	287	nmp->name_space = NW_NS_OS2;
	288	nmp->m.nls.opt &= ~NWHP_DOS;
	289	}
	290	}
	291	opt = nmp->m.nls.opt;
	292	nsf = opt & (NWHP_UPPER \| NWHP_LOWER);
	293	if (opt & NWHP_DOS) {
	294	if (nsf == (NWHP_UPPER \| NWHP_LOWER)) {
	295	nmp->m.nls.opt &= ~(NWHP_LOWER \| NWHP_UPPER);
	296	} else if (nsf == 0) {
	297	nmp->m.nls.opt \|= NWHP_LOWER;
	298	}
	299	} else {
	300	if (nsf == (NWHP_UPPER \| NWHP_LOWER)) {
	301	nmp->m.nls.opt &= ~(NWHP_LOWER \| NWHP_UPPER);
	302	}
	303	}
	304	if (nmp->m.root_path[0]) {
	305	nmp->m.root_path[0]--;
	306	error = ncp_obtain_info(nmp, nmp->n_rootent.f_id,
dadab5e9	307	-nmp->m.root_path[0], nmp->m.root_path, &fattr, td, cred);
984263bc MD	308	if (error) {
	309	NCPFATAL("Invalid root path specified\n");
	310	return ENOENT;
	311	}
	312	nmp->n_rootent.f_parent = fattr.dirEntNum;
	313	nmp->m.root_path[0]++;
	314	error = ncp_obtain_info(nmp, nmp->n_rootent.f_id,
dadab5e9	315	-nmp->m.root_path[0], nmp->m.root_path, &fattr, td, cred);
984263bc MD	316	if (error) {
	317	NCPFATAL("Invalid root path specified\n");
	318	return ENOENT;
	319	}
	320	nmp->n_rootent.f_id = fattr.dirEntNum;
	321	} else {
	322	error = ncp_obtain_info(nmp, nmp->n_rootent.f_id,
dadab5e9	323	0, NULL, &fattr, td, cred);
984263bc MD	324	if (error) {
	325	NCPFATAL("Can't obtain volume info\n");
	326	return ENOENT;
	327	}
	328	fattr.nameLen = strlen(strcpy(fattr.entryName, NWFS_ROOTVOL));
	329	nmp->n_rootent.f_parent = nmp->n_rootent.f_id;
	330	}
	331	error = nwfs_nget(mp, nmp->n_rootent, &fattr, NULL, &vp);
	332	if (error)
	333	return (error);
	334	vp->v_flag \|= VROOT;
	335	np = VTONW(vp);
	336	if (nmp->m.root_path[0] == 0)
	337	np->n_flag \|= NVOLUME;
	338	nmp->n_root = np;
87de5057	339	/* error = VOP_GETATTR(vp, &vattr);
984263bc MD	340	if (error) {
	341	vput(vp);
	342	NCPFATAL("Can't get root directory entry\n");
	343	return error;
	344	}*/
	345	*vpp = vp;
	346	return (0);
	347	}
	348
984263bc MD	349	/ARGSUSED/
	350	int
	351	nwfs_init(struct vfsconf *vfsp)
	352	{
	353	#ifndef SMP
	354	int name[2];
973c11b9 MD	355	int ncpu, error;
973c11b9 MD	356	size_t olen, plen;
984263bc MD	357
	358	name[0] = CTL_HW;
	359	name[1] = HW_NCPU;
41c20dac	360	error = kernel_sysctl(name, 2, &ncpu, &olen, NULL, 0, &plen);
984263bc	361	if (error == 0 && ncpu > 1)
086c1d7e	362	kprintf("warning: nwfs module compiled without SMP support.");
984263bc MD	363	#endif
	364	nwfs_hash_init();
	365	nwfs_pbuf_freecnt = nswbuf / 2 + 1;
	366	NCPVODEBUG("always happy to load!\n");
	367	return (0);
	368	}
	369
	370	/ARGSUSED/
	371	int
	372	nwfs_uninit(struct vfsconf *vfsp)
	373	{
	374
	375	nwfs_hash_free();
	376	NCPVODEBUG("unloaded\n");
	377	return (0);
	378	}
	379
	380	/*
	381	* nwfs_statfs call
	382	*/
	383	int
acde96db	384	nwfs_statfs(struct mount mp, struct statfs sbp, struct ucred *cred)
984263bc MD	385	{
	386	struct nwmount *nmp = VFSTONWFS(mp);
	387	int error = 0, secsize;
	388	struct nwnode *np = nmp->n_root;
	389	struct ncp_volume_info vi;
	390
	391	if (np == NULL) return EINVAL;
acde96db MD	392	error = ncp_get_volume_info_with_number(NWFSTOCONN(nmp), nmp->n_volume,
acde96db MD	393	&vi, curthread, cred);
984263bc MD	394	if (error) return error;
	395	secsize = 512; /* XXX how to get real value ??? */
	396	sbp->f_spare2=0; /* placeholder */
	397	/* fundamental file system block size */
	398	sbp->f_bsize = vi.sectors_per_block*secsize;
	399	/* optimal transfer block size */
	400	sbp->f_iosize = NWFSTOCONN(nmp)->buffer_size;
	401	/* total data blocks in file system */
	402	sbp->f_blocks= vi.total_blocks;
	403	/* free blocks in fs */
	404	sbp->f_bfree = vi.free_blocks + vi.purgeable_blocks;
	405	/* free blocks avail to non-superuser */
	406	sbp->f_bavail= vi.free_blocks+vi.purgeable_blocks;
	407	/* total file nodes in file system */
	408	sbp->f_files = vi.total_dir_entries;
	409	/* free file nodes in fs */
	410	sbp->f_ffree = vi.available_dir_entries;
	411	sbp->f_flags = 0; /* copy of mount exported flags */
	412	if (sbp != &mp->mnt_stat) {
	413	sbp->f_fsid = mp->mnt_stat.f_fsid; /* file system id */
	414	sbp->f_owner = mp->mnt_stat.f_owner; /* user that mounted the filesystem */
	415	sbp->f_type = mp->mnt_vfc->vfc_typenum; /* type of filesystem */
984263bc MD	416	bcopy(mp->mnt_stat.f_mntfromname, sbp->f_mntfromname, MNAMELEN);
	417	}
	418	strncpy(sbp->f_fstypename, mp->mnt_vfc->vfc_name, MFSNAMELEN);
	419	return 0;
	420	}
	421
	422	/*
	423	* Flush out the buffer cache
	424	*/
	425	/* ARGSUSED */
	426	static int
87de5057	427	nwfs_sync(struct mount *mp, int waitfor)
984263bc MD	428	{
	429	struct vnode *vp;
	430	int error, allerror = 0;
	431	/*
	432	* Force stale buffer cache information to be flushed.
	433	*/
	434	loop:
	435	for (vp = TAILQ_FIRST(&mp->mnt_nvnodelist);
	436	vp != NULL;
	437	vp = TAILQ_NEXT(vp, v_nmntvnodes)) {
	438	/*
	439	* If the vnode that we are about to sync is no longer
	440	* associated with this mount point, start over.
	441	*/
	442	if (vp->v_mount != mp)
	443	goto loop;
a11aaa81	444	if (vn_islocked(vp) \|\| RB_EMPTY(&vp->v_rbdirty_tree) \|\|
984263bc MD	445	waitfor == MNT_LAZY)
984263bc MD	446	continue;
87de5057	447	if (vget(vp, LK_EXCLUSIVE))
984263bc	448	goto loop;
5fd012e0	449	/* XXX vp may not be retained */
87de5057	450	error = VOP_FSYNC(vp, waitfor);
984263bc MD	451	if (error)
	452	allerror = error;
	453	vput(vp);
	454	}
	455	return (allerror);
	456	}