1 /*
2 * Redistribution and use in source and binary forms, with or without
3 * modification, are permitted provided that the following conditions
4 * are met:
5 * 1. Redistributions of source code must retain the above copyright
6 * notice, and the entire permission notice in its entirety,
7 * including the disclaimer of warranties.
8 * 2. Redistributions in binary form must reproduce the above copyright
9 * notice, this list of conditions and the following disclaimer in the
10 * documentation and/or other materials provided with the distribution.
11 * 3. The name of the author may not be used to endorse or promote
12 * products derived from this software without specific prior
13 * written permission.
14 *
15 * ALTERNATIVELY, this product may be distributed under the terms of
16 * the GNU Public License, in which case the provisions of the GPL are
17 * required INSTEAD OF the above restrictions. (This clause is
18 * necessary due to a potential bad interaction between the GPL and
19 * the restrictions contained in a BSD-style copyright.)
20 *
21 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
22 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
24 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
25 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
26 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
27 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
29 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
31 * OF THE POSSIBILITY OF SUCH DAMAGE.
32 */
33
34 /*
35 test case:
36
37 Check the following line in group.conf:
38
39 tst-pam_group1;*;tstpamgrp;Al0000-2400;tstpamgrpg
40
41
42 pam_group should add group tstpamgrpg to user tstpamgrp, but not
43 to tstpamgrp2.
44 */
45
46 #ifdef HAVE_CONFIG_H
47 #include <config.h>
48 #endif
49
50 #include <grp.h>
51 #include <stdio.h>
52 #include <stdlib.h>
53 #include <string.h>
54 #include <unistd.h>
55 #include <sys/types.h>
56 #include <security/pam_appl.h>
57
58 #define GROUP_BLK 10
59 #define blk_size(len) (((len-1 + GROUP_BLK)/GROUP_BLK)*GROUP_BLK)
60
61 /* A conversation function which uses an internally-stored value for
62 the responses. */
63 static int
64 fake_conv (int num_msg, const struct pam_message **msgm UNUSED,
65 struct pam_response **response, void *appdata_ptr UNUSED)
66 {
67 struct pam_response *reply;
68 int count;
69
70 /* Sanity test. */
71 if (num_msg <= 0)
72 return PAM_CONV_ERR;
73
74 /* Allocate memory for the responses. */
75 reply = calloc (num_msg, sizeof (struct pam_response));
76 if (reply == NULL)
77 return PAM_CONV_ERR;
78
79 /* Each prompt elicits the same response. */
80 for (count = 0; count < num_msg; ++count)
81 {
82 reply[count].resp_retcode = 0;
83 reply[count].resp = strdup ("!!");
84 }
85
86 /* Set the pointers in the response structure and return. */
87 *response = reply;
88 return PAM_SUCCESS;
89 }
90
91 static struct pam_conv conv = {
92 fake_conv,
93 NULL
94 };
95
96 static int debug = 0;
97
98 static int
99 run_test (const char *user, gid_t groupid, int needit)
100 {
101 pam_handle_t *pamh = NULL;
102 int retval;
103 int no_grps;
104
105 retval = pam_start("tst-pam_group1", user, &conv, &pamh);
106 if (retval != PAM_SUCCESS)
107 {
108 if (debug)
109 fprintf (stderr, "pam_group1: pam_start returned %d\n", retval);
110 return 1;
111 }
112
113 retval = pam_set_item (pamh, PAM_TTY, "/dev/tty1");
114 if (retval != PAM_SUCCESS)
115 {
116 if (debug)
117 fprintf (stderr,
118 "pam_group1: pam_set_item(PAM_TTY) returned %d\n",
119 retval);
120 return 1;
121 }
122
123 retval = pam_authenticate (pamh, 0);
124 if (retval != PAM_SUCCESS)
125 {
126 if (debug)
127 fprintf (stderr, "pam_group1: pam_authenticate returned %d\n", retval);
128 return 1;
129 }
130
131 retval = pam_setcred (pamh, PAM_ESTABLISH_CRED);
132 if (retval != PAM_SUCCESS)
133 {
134 if (debug)
135 fprintf (stderr, "pam_group1: pam_setcred returned %d\n", retval);
136 return 1;
137 }
138
139
140 no_grps = getgroups(0, NULL); /* find the current number of groups */
141 if (no_grps > 0)
142 {
143 int i, found;
144 gid_t *grps = calloc (blk_size (no_grps), sizeof(gid_t));
145
146 if (getgroups(no_grps, grps) < 0)
147 {
148 if (debug)
149 fprintf (stderr, "pam_group1: getroups returned error: %m\n");
150 pam_end (pamh, PAM_SYSTEM_ERR);
151 return 1;
152 }
153
154 found = 0;
155 for (i = 0; i < no_grps; ++i)
156 {
157 #if 0
158 if (debug)
159 fprintf (stderr, "gid[%d]=%d\n", i, grps[i]);
160 #endif
161 if (grps[i] == groupid)
162 found = 1;
163 }
164 if ((needit && found) || (!needit && !found))
165 {
166 /* everything is ok */
167 }
168 else
169 {
170 pam_end (pamh, PAM_SYSTEM_ERR);
171 if (debug)
172 fprintf (stderr,
173 "pam_group1: unexpected result for %s: needit=%d, found=%d\n",
174 user, needit, found);
175 return 1;
176 }
177 }
178
179 retval = pam_end (pamh,retval);
180 if (retval != PAM_SUCCESS)
181 {
182 if (debug)
183 fprintf (stderr, "pam_group1: pam_end returned %d\n", retval);
184 return 1;
185 }
186 return 0;
187 }
188
189 int
190 main(int argc, char *argv[])
191 {
192 struct group *grp;
193 gid_t grpid;
194
195 if (argc > 1 && strcmp (argv[1], "-d") == 0)
196 debug = 1;
197
198 grp = getgrnam ("tstpamgrpg");
199 if (grp == NULL)
200 return 1;
201 grpid = grp->gr_gid;
202
203 if (run_test ("root", grpid, 0) != 0 ||
204 run_test ("tstpamgrp2", grpid, 0) != 0 ||
205 run_test ("tstpamgrp", grpid, 1) != 0)
206 return 1;
207
208 return 0;
209 }