blob: 7dbb83fba94ab6a2b8c6a06be94f0aad16eafea2 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
|
#
# CDDL HEADER START
#
# The contents of this file are subject to the terms of the
# Common Development and Distribution License (the "License").
# You may not use this file except in compliance with the License.
#
# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
# or http://www.opensolaris.org/os/licensing.
# See the License for the specific language governing permissions
# and limitations under the License.
#
# When distributing Covered Code, include this CDDL HEADER in each
# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
# If applicable, add the following below this CDDL HEADER, with the
# fields enclosed by brackets "[]" replaced with your own identifying
# information: Portions Copyright [yyyy] [name of copyright owner]
#
# CDDL HEADER END
#
#
# Copyright (c) 2012, Joyent, Inc. All rights reserved.
#
ppriv -s A=basic,dtrace_proc,dtrace_user $$
/usr/sbin/dtrace -q -Cs /dev/stdin <<EOF
#define CANREAD(field) \
BEGIN { this->fp = getf(0); errmsg = "can't read field"; \
printf("field: "); trace(this->fp->field); printf("\n"); }
#define CANTREAD(field) \
BEGIN { errmsg = ""; this->fp = getf(0); trace(this->fp->field); \
printf("\nable to successfully read field!"); exit(1); }
CANREAD(f_flag)
CANREAD(f_flag2)
CANREAD(f_vnode)
CANREAD(f_offset)
CANREAD(f_cred)
CANREAD(f_audit_data)
CANREAD(f_count)
/*
* We can potentially read parts of our cred, but we can't dereference
* through cr_zone.
*/
CANTREAD(f_cred->cr_zone->zone_id)
CANREAD(f_vnode->v_path)
CANREAD(f_vnode->v_op)
CANREAD(f_vnode->v_op->vnop_name)
CANTREAD(f_vnode->v_flag)
CANTREAD(f_vnode->v_count)
CANTREAD(f_vnode->v_pages)
CANTREAD(f_vnode->v_type)
CANTREAD(f_vnode->v_vfsmountedhere)
CANTREAD(f_vnode->v_op->vop_open)
BEGIN
{
errmsg = "";
this->fp = getf(0);
this->fp2 = getf(1);
trace(this->fp->f_vnode);
printf("\nable to successfully read this->fp!");
exit(1);
}
BEGIN
{
errmsg = "";
this->fp = getf(0);
}
BEGIN
{
trace(this->fp->f_vnode);
printf("\nable to successfully read this->fp from prior clause!");
}
BEGIN
{
exit(0);
}
ERROR
/errmsg != ""/
{
printf("fatal error: %s", errmsg);
exit(1);
}
EOF
|
