1 /*-
2 * Copyright (c) 2007 Robert M. M. Watson
3 * All rights reserved.
4 *
5 * This software was developed by Robert N. M. Watson for the TrustedBSD
6 * Project.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR, NCIRCLE NETWORK SECURITY,
21 * INC., OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
22 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
23 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
24 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
25 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
26 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
27 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29
30 /*
31 * Confirm that various UID/GID/etc-related system calls require root
32 * privilege in the absence of any saved/real/etc variations in the
33 * credential. It would be nice to also check cases where those bits of the
34 * credential are more interesting.
35 *
36 * XXXRW: Add support for testing more diverse real/saved scenarios.
37 */
38
39 #include <sys/types.h>
40
41 #include <err.h>
42 #include <errno.h>
43 #include <stdio.h>
44 #include <unistd.h>
45
46 #include "main.h"
47
48 int
priv_cred_setup(int asroot,int injail,struct test * test)49 priv_cred_setup(int asroot, int injail, struct test *test)
50 {
51
52 return (0);
53 }
54
55 void
priv_cred_setuid(int asroot,int injail,struct test * test)56 priv_cred_setuid(int asroot, int injail, struct test *test)
57 {
58 int error;
59
60 error = setuid(UID_OTHER);
61 if (asroot && injail)
62 expect("priv_setuid(asroot, injail)", error, 0, 0);
63 if (asroot && !injail)
64 expect("priv_setuid(asroot, !injail)", error, 0, 0);
65 if (!asroot && injail)
66 expect("priv_setuid(!asroot, injail)", error, -1, EPERM);
67 if (!asroot && !injail)
68 expect("priv_setuid(!asroot, !injail)", error, -1, EPERM);
69 }
70
71 void
priv_cred_seteuid(int asroot,int injail,struct test * test)72 priv_cred_seteuid(int asroot, int injail, struct test *test)
73 {
74 int error;
75
76 error = seteuid(UID_OTHER);
77 if (asroot && injail)
78 expect("priv_seteuid(asroot, injail)", error, 0, 0);
79 if (asroot && !injail)
80 expect("priv_seteuid(asroot, !injail)", error, 0, 0);
81 if (!asroot && injail)
82 expect("priv_seteuid(!asroot, injail)", error, -1, EPERM);
83 if (!asroot && !injail)
84 expect("priv_seteuid(!asroot, !injail)", error, -1, EPERM);
85 }
86
87 void
priv_cred_setgid(int asroot,int injail,struct test * test)88 priv_cred_setgid(int asroot, int injail, struct test *test)
89 {
90 int error;
91
92 error = setgid(GID_OTHER);
93 if (asroot && injail)
94 expect("priv_setgid(asroot, injail)", error, 0, 0);
95 if (asroot && !injail)
96 expect("priv_setgid(asroot, !injail)", error, 0, 0);
97 if (!asroot && injail)
98 expect("priv_setgid(!asroot, injail)", error, -1, EPERM);
99 if (!asroot && !injail)
100 expect("priv_setgid(!asroot, !injail)", error, -1, EPERM);
101 }
102
103 void
priv_cred_setegid(int asroot,int injail,struct test * test)104 priv_cred_setegid(int asroot, int injail, struct test *test)
105 {
106 int error;
107
108 error = setegid(GID_OTHER);
109 if (asroot && injail)
110 expect("priv_setegid(asroot, injail)", error, 0, 0);
111 if (asroot && !injail)
112 expect("priv_setegid(asroot, !injail)", error, 0, 0);
113 if (!asroot && injail)
114 expect("priv_setegd(!asroot, injail)", error, -1, EPERM);
115 if (!asroot && !injail)
116 expect("priv_setegid(!asroot, !injail)", error, -1, EPERM);
117 }
118
119 static const gid_t gidset[] = {GID_WHEEL, GID_OTHER};
120 static const int gidset_len = sizeof(gidset) / sizeof(gid_t);
121
122 void
priv_cred_setgroups(int asroot,int injail,struct test * test)123 priv_cred_setgroups(int asroot, int injail, struct test *test)
124 {
125 int error;
126
127 error = setgroups(gidset_len, gidset);
128 if (asroot && injail)
129 expect("priv_setgroups(asroot, injail)", error, 0, 0);
130 if (asroot && !injail)
131 expect("priv_setgroups(asroot, !injail)", error, 0, 0);
132 if (!asroot && injail)
133 expect("priv_setgroups(!asroot, injail)", error, -1, EPERM);
134 if (!asroot && !injail)
135 expect("priv_setgroups(!asroot, !injail)", error, -1, EPERM);
136 }
137
138 void
priv_cred_setreuid(int asroot,int injail,struct test * test)139 priv_cred_setreuid(int asroot, int injail, struct test *test)
140 {
141 int error;
142
143 error = setreuid(UID_OTHER, UID_OTHER);
144 if (asroot && injail)
145 expect("priv_setreuid(asroot, injail)", error, 0, 0);
146 if (asroot && !injail)
147 expect("priv_setreuid(asroot, !injail)", error, 0, 0);
148 if (!asroot && injail)
149 expect("priv_setreuid(!asroot, injail)", error, -1, EPERM);
150 if (!asroot && !injail)
151 expect("priv_setreuid(!asroot, !injail)", error, -1, EPERM);
152 }
153
154 void
priv_cred_setregid(int asroot,int injail,struct test * test)155 priv_cred_setregid(int asroot, int injail, struct test *test)
156 {
157 int error;
158
159 error = setregid(GID_OTHER, GID_OTHER);
160 if (asroot && injail)
161 expect("priv_setregid(asroot, injail)", error, 0, 0);
162 if (asroot && !injail)
163 expect("priv_setregid(asroot, !injail)", error, 0, 0);
164 if (!asroot && injail)
165 expect("priv_setregid(!asroot, injail)", error, -1, EPERM);
166 if (!asroot && !injail)
167 expect("priv_setregid(!asroot, !injail)", error, -1, EPERM);
168 }
169
170 void
priv_cred_setresuid(int asroot,int injail,struct test * test)171 priv_cred_setresuid(int asroot, int injail, struct test *test)
172 {
173 int error;
174
175 error = setresuid(UID_OTHER, UID_OTHER, UID_OTHER);
176 if (asroot && injail)
177 expect("priv_setresuid(asroot, injail)", error, 0, 0);
178 if (asroot && !injail)
179 expect("priv_setresuid(asroot, !injail)", error, 0, 0);
180 if (!asroot && injail)
181 expect("priv_setresuid(!asroot, injail)", error, -1, EPERM);
182 if (!asroot && !injail)
183 expect("priv_setresuid(!asroot, !injail)", error, -1, EPERM);
184 }
185
186 void
priv_cred_setresgid(int asroot,int injail,struct test * test)187 priv_cred_setresgid(int asroot, int injail, struct test *test)
188 {
189 int error;
190
191 error = setresgid(GID_OTHER, GID_OTHER, GID_OTHER);
192 if (asroot && injail)
193 expect("priv_setresgid(asroot, injail)", error, 0, 0);
194 if (asroot && !injail)
195 expect("priv_setresgid(asroot, !injail)", error, 0, 0);
196 if (!asroot && injail)
197 expect("priv_setresgid(!asroot, injail)", error, -1, EPERM);
198 if (!asroot && !injail)
199 expect("priv_setresgid(!asroot, !injail)", error, -1, EPERM);
200 }
201
202 void
priv_cred_cleanup(int asroot,int injail,struct test * test)203 priv_cred_cleanup(int asroot, int injail, struct test *test)
204 {
205
206 }
207