Kernel - fix access checks
[dragonfly.git] / sys / vfs / 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 * 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 $
b478fdce 33 * $DragonFly: src/sys/vfs/nwfs/nwfs_ioctl.c,v 1.8 2007/08/08 00:12:52 swildner Exp $
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34 */
35#include <sys/param.h>
36#include <sys/systm.h>
87de5057 37#include <sys/kernel.h>
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38#include <sys/mount.h>
39#include <sys/vnode.h>
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40#include <sys/globaldata.h>
41#include <sys/thread.h>
984263bc 42
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43#include <netproto/ncp/ncp.h>
44#include <netproto/ncp/ncp_conn.h>
45#include <netproto/ncp/ncp_subr.h>
984263bc 46
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47#include <sys/thread2.h>
48
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49#include "nwfs.h"
50#include "nwfs_node.h"
51#include "nwfs_subr.h"
984263bc 52
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53/*
54 * nwfs_ioctl(struct vnode *a_vp, u_long a_command, caddr_t a_data,
b478fdce 55 * int a_fflag, struct ucred *a_cred)
a9bb80e0 56 */
984263bc 57int
a9bb80e0 58nwfs_ioctl(struct vop_ioctl_args *ap)
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59{
60 int error;
87de5057 61 struct thread *td = curthread; /* XXX */
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62 struct ucred *cred = ap->a_cred;
63 struct vnode *vp = ap->a_vp;
64 struct nwnode *np = VTONW(vp);
65 struct nwmount *nmp = VTONWFS(vp);
66 struct ncp_conn *conn = NWFSTOCONN(nmp);
67 struct ncp_handle *hp;
68 struct nw_entry_info *fap;
69 void *data = ap->a_data;
70
71 switch (ap->a_command) {
72 case NWFSIOC_GETCONN:
dadab5e9 73 error = ncp_conn_lock(conn, td, cred, NCPM_READ);
984263bc 74 if (error) break;
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75 error = ncp_conn_gethandle(conn, td, &hp);
76 ncp_conn_unlock(conn, td);
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77 if (error) break;
78 *(int*)data = hp->nh_id;
79 break;
80 case NWFSIOC_GETEINFO:
cb66845a 81 if ((error = VOP_EACCESS(vp, VEXEC, cred))) break;
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82 fap = data;
83 error = ncp_obtain_info(nmp, np->n_fid.f_id, 0, NULL, fap,
87de5057 84 td, ap->a_cred);
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85 strcpy(fap->entryName, np->n_name);
86 fap->nameLen = np->n_nmlen;
87 break;
88 case NWFSIOC_GETNS:
cb66845a 89 if ((error = VOP_EACCESS(vp, VEXEC, cred))) break;
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90 *(int*)data = nmp->name_space;
91 break;
92 default:
93 error = EINVAL;
94 }
95 return (error);
96}