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procfs.c (90873) procfs.c (96886)
1/*
2 * Copyright (c) 2001 Dag-Erling Sm�rgrav
3 * Copyright (c) 1993 Jan-Simon Pendry
4 * Copyright (c) 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * Jan-Simon Pendry.

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32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 * SUCH DAMAGE.
37 *
38 * @(#)procfs_vfsops.c 8.7 (Berkeley) 5/10/95
39 *
1/*
2 * Copyright (c) 2001 Dag-Erling Sm�rgrav
3 * Copyright (c) 1993 Jan-Simon Pendry
4 * Copyright (c) 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * Jan-Simon Pendry.

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32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 * SUCH DAMAGE.
37 *
38 * @(#)procfs_vfsops.c 8.7 (Berkeley) 5/10/95
39 *
40 * $FreeBSD: head/sys/fs/procfs/procfs.c 90873 2002-02-18 21:41:11Z des $
40 * $FreeBSD: head/sys/fs/procfs/procfs.c 96886 2002-05-19 00:14:50Z jhb $
41 */
42
43#include <sys/param.h>
44#include <sys/queue.h>
45#include <sys/exec.h>
46#include <sys/lock.h>
47#include <sys/kernel.h>
48#include <sys/malloc.h>

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102 vap->va_mode = 0200;
103 else if (strcmp(pn->pn_name, "mem") == 0 ||
104 strcmp(pn->pn_name, "regs") == 0 ||
105 strcmp(pn->pn_name, "dbregs") == 0 ||
106 strcmp(pn->pn_name, "fpregs") == 0)
107 vap->va_mode = 0600;
108
109 /* p is locked by caller */
41 */
42
43#include <sys/param.h>
44#include <sys/queue.h>
45#include <sys/exec.h>
46#include <sys/lock.h>
47#include <sys/kernel.h>
48#include <sys/malloc.h>

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102 vap->va_mode = 0200;
103 else if (strcmp(pn->pn_name, "mem") == 0 ||
104 strcmp(pn->pn_name, "regs") == 0 ||
105 strcmp(pn->pn_name, "dbregs") == 0 ||
106 strcmp(pn->pn_name, "fpregs") == 0)
107 vap->va_mode = 0600;
108
109 /* p is locked by caller */
110 PROC_LOCK_ASSERT(p, MA_OWNED);
110 vap->va_uid = p->p_ucred->cr_uid;
111 vap->va_gid = p->p_ucred->cr_gid;
112
113 return (0);
114}
115
116/*
117 * Visibility: some files only exist for non-system processes

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125
126/*
127 * Visibility: some files are only visible to process that can debug
128 * the target process.
129 */
130int
131procfs_candebug(PFS_VIS_ARGS)
132{
111 vap->va_uid = p->p_ucred->cr_uid;
112 vap->va_gid = p->p_ucred->cr_gid;
113
114 return (0);
115}
116
117/*
118 * Visibility: some files only exist for non-system processes

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126
127/*
128 * Visibility: some files are only visible to process that can debug
129 * the target process.
130 */
131int
132procfs_candebug(PFS_VIS_ARGS)
133{
134 PROC_LOCK_ASSERT(p, MA_OWNED);
133 return ((p->p_flag & P_SYSTEM) == 0 &&
135 return ((p->p_flag & P_SYSTEM) == 0 &&
134 p_candebug(td->td_proc, p) == 0);
136 p_candebug(td, p) == 0);
135}
136
137/*
138 * Constructor
139 */
140static int
141procfs_init(PFS_INIT_ARGS)
142{

--- 56 unchanged lines hidden --- 		137}
138
139/*
140 * Constructor
141 */
142static int
143procfs_init(PFS_INIT_ARGS)
144{

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