sys/vfs/nwfs/nwfs_ioctl.c

   1 /*
   2  * Copyright (c) 1999, 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_ioctl.c,v 1.2.2.1 2001/02/22 09:14:12 bp Exp $
  33  * $DragonFly: src/sys/vfs/nwfs/nwfs_ioctl.c,v 1.8 2007/08/08 00:12:52 swildner Exp $
  34  */
  35 #include <sys/param.h>
  36 #include <sys/systm.h>
  37 #include <sys/kernel.h>
  38 #include <sys/mount.h>
  39 #include <sys/vnode.h>
  40 #include <sys/ioccom.h>
  41 #include <sys/globaldata.h>
  42 #include <sys/thread.h>
  43
  44 #include <netproto/ncp/ncp.h>
  45 #include <netproto/ncp/ncp_conn.h>
  46 #include <netproto/ncp/ncp_subr.h>
  47
  48 #include <sys/thread2.h>
  49
  50 #include "nwfs.h"
  51 #include "nwfs_node.h"
  52 #include "nwfs_subr.h"
  53
  54 /*
  55  * nwfs_ioctl(struct vnode *a_vp, u_long a_command, caddr_t a_data,
  56  *            int a_fflag, struct ucred *a_cred)
  57  */
  58 int
  59 nwfs_ioctl(struct vop_ioctl_args *ap)
  60 {
  61         int error;
  62         struct thread *td = curthread; /* XXX */
  63         struct ucred *cred = ap->a_cred;
  64         struct vnode *vp = ap->a_vp;
  65         struct nwnode *np = VTONW(vp);
  66         struct nwmount *nmp = VTONWFS(vp);
  67         struct ncp_conn *conn = NWFSTOCONN(nmp);
  68         struct ncp_handle *hp;
  69         struct nw_entry_info *fap;
  70         void *data = ap->a_data;
  71
  72         switch (ap->a_command) {
  73             case NWFSIOC_GETCONN:
  74                 error = ncp_conn_lock(conn, td, cred, NCPM_READ);
  75                 if (error) break;
  76                 error = ncp_conn_gethandle(conn, td, &hp);
  77                 ncp_conn_unlock(conn, td);
  78                 if (error) break;
  79                 *(int*)data = hp->nh_id;
  80                 break;
  81             case NWFSIOC_GETEINFO:
  82                 if ((error = VOP_ACCESS(vp, VEXEC, cred))) break;
  83                 fap = data;
  84                 error = ncp_obtain_info(nmp, np->n_fid.f_id, 0, NULL, fap,
  85                     td, ap->a_cred);
  86                 strcpy(fap->entryName, np->n_name);
  87                 fap->nameLen = np->n_nmlen;
  88                 break;
  89             case NWFSIOC_GETNS:
  90                 if ((error = VOP_ACCESS(vp, VEXEC, cred))) break;
  91                 *(int*)data = nmp->name_space;
  92                 break;
  93             default:
  94                 error = EINVAL;
  95         }
  96         return (error);
  97 }