The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/fs/nwfs/nwfs_ioctl.c

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    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  *
   14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   24  * SUCH DAMAGE.
   25  *
   26  * $FreeBSD$
   27  */
   28 #include <sys/param.h>
   29 #include <sys/systm.h>
   30 #include <sys/mount.h>
   31 #include <sys/vnode.h>
   32 #include <sys/ioccom.h>
   33 
   34 #include <netncp/ncp.h>
   35 #include <netncp/ncp_conn.h>
   36 #include <netncp/ncp_subr.h>
   37 
   38 #include <fs/nwfs/nwfs.h>
   39 #include <fs/nwfs/nwfs_node.h>
   40 #include <fs/nwfs/nwfs_subr.h>
   41 
   42 int
   43 nwfs_ioctl(ap)
   44         struct vop_ioctl_args /* {
   45                 struct vnode *a_vp;
   46                 u_long a_command;
   47                 caddr_t a_data;
   48                 int fflag;
   49                 struct ucred *cred;
   50                 struct thread *td;
   51         } */ *ap;
   52 {
   53         int error;
   54         struct thread *td = ap->a_td;
   55         struct ucred *cred = ap->a_cred;
   56         struct vnode *vp = ap->a_vp;
   57         struct nwnode *np = VTONW(vp);
   58         struct nwmount *nmp = VTONWFS(vp);
   59         struct ncp_conn *conn = NWFSTOCONN(nmp);
   60         struct ncp_handle *hp;
   61         struct nw_entry_info *fap;
   62         void *data = ap->a_data;
   63 
   64         switch (ap->a_command) {
   65             case NWFSIOC_GETCONN:
   66                 error = ncp_conn_lock(conn, td, cred, NCPM_READ);
   67                 if (error) break;
   68                 error = ncp_conn_gethandle(conn, td, &hp);
   69                 ncp_conn_unlock(conn, td);
   70                 if (error) break;
   71                 *(int*)data = hp->nh_id;
   72                 break;
   73             case NWFSIOC_GETEINFO:
   74                 if ((error = VOP_ACCESS(vp, VEXEC, cred, td))) break;
   75                 fap = data;
   76                 error = ncp_obtain_info(nmp, np->n_fid.f_id, 0, NULL, fap,
   77                     ap->a_td,ap->a_cred);
   78                 strcpy(fap->entryName, np->n_name);
   79                 fap->nameLen = np->n_nmlen;
   80                 break;
   81             case NWFSIOC_GETNS:
   82                 if ((error = VOP_ACCESS(vp, VEXEC, cred, td))) break;
   83                 *(int*)data = nmp->name_space;
   84                 break;
   85             default:
   86                 error = ENOTTY;
   87         }
   88         return (error);
   89 }

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