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ae5c498d | 1 | /* Common code for NSS test cases. |
2b778ceb | 2 | Copyright (C) 2017-2021 Free Software Foundation, Inc. |
ae5c498d DD |
3 | This file is part of the GNU C Library. |
4 | ||
5 | The GNU C Library is free software; you can redistribute it and/or | |
6 | modify it under the terms of the GNU Lesser General Public | |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the License, or (at your option) any later version. | |
9 | ||
10 | The GNU C Library is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | Lesser General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU Lesser General Public | |
16 | License along with the GNU C Library; if not, see | |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
ae5c498d DD |
18 | |
19 | ||
20 | /* There are two (or more) NSS test modules named nss_test1, | |
21 | nss_test2, etc. Each one will call a function IN THE TEST CASE | |
22 | called _nss_test1_init_hook(test_tables *) (or _nss_test2_*, etc). | |
23 | ||
24 | In your copy of the hook function, you may change the *_table | |
25 | pointers in the passed struct to point to static tables in your | |
26 | test case, and the test modules will use that table instead. | |
27 | ||
28 | Your tables MUST end with an entry that has a *_LAST() macro. | |
29 | Use the *_ISLAST() macro to test for end of list. | |
30 | ||
31 | Use __nss_configure_lookup("passwd", "test1 test2") (for example) to | |
32 | configure NSS to use the test modules. */ | |
33 | ||
34 | #include <pwd.h> | |
35 | #include <grp.h> | |
9b456c5d | 36 | #include <shadow.h> |
6eceded9 | 37 | #include <netdb.h> |
ae5c498d DD |
38 | |
39 | typedef struct test_tables { | |
40 | struct passwd *pwd_table; | |
41 | struct group *grp_table; | |
9b456c5d | 42 | struct spwd *spwd_table; |
6eceded9 | 43 | struct hostent *host_table; |
ae5c498d DD |
44 | } test_tables; |
45 | ||
46 | extern void _nss_test1_init_hook (test_tables *) __attribute__((weak)); | |
47 | extern void _nss_test2_init_hook (test_tables *) __attribute__((weak)); | |
48 | ||
49 | #define PWD_LAST() { .pw_name = NULL, .pw_uid = 0 } | |
50 | #define GRP_LAST() { .gr_name = NULL, .gr_gid = 0 } | |
9b456c5d | 51 | #define SPWD_LAST() { .sp_namp = NULL, .sp_pwdp = NULL } |
6eceded9 | 52 | #define HOST_LAST() { .h_name = NULL, .h_aliases = NULL, .h_length = 0, .h_addr_list = NULL } |
ae5c498d DD |
53 | |
54 | #define PWD_ISLAST(p) ((p)->pw_name == NULL && (p)->pw_uid == 0) | |
55 | #define GRP_ISLAST(g) ((g)->gr_name == NULL && (g)->gr_gid == 0) | |
9b456c5d | 56 | #define SPWD_ISLAST(s) ((s)->sp_namp == NULL && (s)->sp_pwdp == 0) |
6eceded9 | 57 | #define HOST_ISLAST(h) ((h)->h_name == NULL && (h)->h_length == 0) |
ae5c498d DD |
58 | |
59 | /* Macros to fill in the tables easily. */ | |
60 | ||
61 | /* Note that the "unparameterized" fields are not magic; they're just | |
62 | arbitrary values. Tests which need to verify those fields should | |
63 | fill them in explicitly. */ | |
64 | ||
65 | #define PWD(u) \ | |
66 | { .pw_name = (char *) "name" #u, .pw_passwd = (char *) "*", .pw_uid = u, \ | |
67 | .pw_gid = 100, .pw_gecos = (char *) "*", .pw_dir = (char *) "*", \ | |
68 | .pw_shell = (char *) "*" } | |
69 | ||
70 | #define PWD_N(u,n) \ | |
71 | { .pw_name = (char *) n, .pw_passwd = (char *) "*", .pw_uid = u, \ | |
72 | .pw_gid = 100, .pw_gecos = (char *) "*", .pw_dir = (char *) "*", \ | |
73 | .pw_shell = (char *) "*" } | |
74 | ||
75 | #define GRP(u) \ | |
76 | { .gr_name = (char *) "name" #u, .gr_passwd = (char *) "*", .gr_gid = u, \ | |
77 | .gr_mem = (char **) group_##u } | |
78 | ||
79 | #define GRP_N(u,n,m) \ | |
80 | { .gr_name = (char *) n, .gr_passwd = (char *) "*", .gr_gid = u, \ | |
81 | .gr_mem = (char **) m } | |
82 | ||
9b456c5d DD |
83 | #define SPWD(u) \ |
84 | { .sp_namp = (char *) "name" #u, .sp_pwdp = (char *) "passwd" #u } | |
85 | ||
6eceded9 DD |
86 | #define HOST(u) \ |
87 | { .h_name = (char *) "name" #u, .h_aliases = NULL, .h_addrtype = u, \ | |
88 | .h_length = 4, \ | |
89 | .h_addr_list = (char **) hostaddr_##u } | |
90 | ||
ae5c498d DD |
91 | /*------------------------------------------------------------*/ |
92 | ||
93 | /* Helper functions for testing passwd entries. Call | |
94 | compare_passwds() passing a test index, the passwd entry you got, | |
95 | and the expected passwd entry. The function will return the number | |
96 | of mismatches, or zero of the two records are the same. */ | |
97 | ||
98 | static void __attribute__((used)) | |
99 | print_passwd (struct passwd *p) | |
100 | { | |
101 | printf (" passwd %u.%s (%s) :", p->pw_uid, p->pw_name, p->pw_passwd); | |
102 | printf (" %u, %s, %s, %s\n", p->pw_gid, p->pw_gecos, p->pw_dir, p->pw_shell); | |
103 | printf ("\n"); | |
104 | } | |
105 | ||
106 | static int __attribute__((used)) | |
107 | compare_passwd_field (int i, struct passwd *p, const char *got, | |
108 | const char *exp, const char *name) | |
109 | { | |
110 | /* Does the entry have a value? */ | |
111 | if (got == NULL) | |
112 | { | |
113 | printf ("[%d] passwd %s for %u.%s was (null)\n", | |
114 | i, name, | |
115 | p->pw_uid, p->pw_name); | |
116 | return 1; | |
117 | } | |
118 | /* Does the entry have an unexpected name? */ | |
119 | else if (exp == NULL) | |
120 | { | |
121 | printf ("[%d] passwd %s for %u.(null) was %s\n", | |
122 | i, name, | |
123 | p->pw_uid, got); | |
124 | return 1; | |
125 | } | |
126 | /* And is it correct? */ | |
127 | else if (got && strcmp (got, exp) != 0) | |
128 | { | |
129 | printf("[%d] passwd entry %u.%s had %s \"%s\" (expected \"%s\") \n", | |
130 | i, | |
131 | p->pw_uid, p->pw_name, name, | |
132 | got, exp); | |
133 | return 1; | |
134 | } | |
135 | return 0; | |
136 | } | |
137 | ||
138 | #define COMPARE_PWD_FIELD(f) \ | |
139 | retval += compare_passwd_field (i, e, p->f, e->f, #f) | |
140 | ||
141 | /* Compare passwd to expected passwd, return number of "problems". | |
142 | "I" is the index into the testcase data. */ | |
143 | static int __attribute__((used)) | |
144 | compare_passwds (int i, struct passwd *p, struct passwd *e) | |
145 | { | |
146 | int retval = 0; | |
147 | ||
148 | /* Did we get the expected uid? */ | |
149 | if (p->pw_uid != e->pw_uid) | |
150 | { | |
151 | printf("[%d] passwd entry %u.%s had uid %u\n", i, | |
152 | e->pw_uid, e->pw_name, | |
153 | p->pw_uid); | |
154 | ++retval; | |
155 | } | |
156 | ||
157 | /* Did we get the expected gid? */ | |
158 | if (p->pw_gid != e->pw_gid) | |
159 | { | |
160 | printf("[%d] passwd entry %u.%s had gid %u (expected %u)\n", i, | |
161 | e->pw_uid, e->pw_name, | |
162 | p->pw_gid, e->pw_gid); | |
163 | ++retval; | |
164 | } | |
165 | ||
166 | COMPARE_PWD_FIELD (pw_name); | |
167 | COMPARE_PWD_FIELD (pw_passwd); | |
168 | COMPARE_PWD_FIELD (pw_gecos); | |
169 | COMPARE_PWD_FIELD (pw_dir); | |
170 | COMPARE_PWD_FIELD (pw_shell); | |
171 | ||
172 | if (retval > 0) | |
173 | { | |
174 | /* Left in for debugging later, if needed. */ | |
175 | print_passwd (p); | |
176 | print_passwd (e); | |
177 | } | |
178 | ||
179 | return retval; | |
180 | } | |
181 | ||
182 | /*------------------------------------------------------------*/ | |
183 | ||
184 | /* Helpers for checking group entries. See passwd helper comment | |
185 | above for details. */ | |
186 | ||
187 | static void __attribute__((used)) | |
188 | print_group (struct group *g) | |
189 | { | |
190 | int j; | |
191 | ||
192 | printf (" group %u.%s (%s) :", g->gr_gid, g->gr_name, g->gr_passwd); | |
193 | if (g->gr_mem) | |
194 | for (j=0; g->gr_mem[j]; j++) | |
195 | printf ("%s%s", j==0 ? " " : ", ", g->gr_mem[j]); | |
196 | printf ("\n"); | |
197 | } | |
198 | ||
199 | /* Compare group to expected group, return number of "problems". "I" | |
200 | is the index into the testcase data. */ | |
201 | static int __attribute__((used)) | |
202 | compare_groups (int i, struct group *g, struct group *e) | |
203 | { | |
204 | int j; | |
205 | int retval = 0; | |
206 | ||
207 | /* Did we get the expected gid? */ | |
208 | if (g->gr_gid != e->gr_gid) | |
209 | { | |
210 | printf("[%d] group entry %u.%s had gid %u\n", i, | |
211 | e->gr_gid, e->gr_name, | |
212 | g->gr_gid); | |
213 | ++retval; | |
214 | } | |
215 | ||
216 | /* Does the entry have a name? */ | |
217 | if (g->gr_name == NULL) | |
218 | { | |
219 | printf ("[%d] group name for %u.%s was (null)\n", i, | |
220 | e->gr_gid, e->gr_name); | |
221 | ++retval; | |
222 | } | |
223 | /* Does the entry have an unexpected name? */ | |
224 | else if (e->gr_name == NULL) | |
225 | { | |
226 | printf ("[%d] group name for %u.(null) was %s\n", i, | |
227 | e->gr_gid, g->gr_name); | |
228 | ++retval; | |
229 | } | |
230 | /* And is it correct? */ | |
231 | else if (strcmp (g->gr_name, e->gr_name) != 0) | |
232 | { | |
233 | printf("[%d] group entry %u.%s had name \"%s\"\n", i, | |
234 | e->gr_gid, e->gr_name, | |
235 | g->gr_name); | |
236 | ++retval; | |
237 | } | |
238 | ||
239 | /* Does the entry have a password? */ | |
240 | if (g->gr_passwd == NULL && e->gr_passwd != NULL) | |
241 | { | |
242 | printf ("[%d] group password for %u.%s was NULL\n", i, | |
243 | e->gr_gid, e->gr_name); | |
244 | ++retval; | |
245 | } | |
246 | else if (g->gr_passwd != NULL && e->gr_passwd == NULL) | |
247 | { | |
248 | printf ("[%d] group password for %u.%s was not NULL\n", i, | |
249 | e->gr_gid, e->gr_name); | |
250 | ++retval; | |
251 | } | |
252 | /* And is it correct? */ | |
253 | else if (g->gr_passwd && strcmp (g->gr_passwd, e->gr_passwd) != 0) | |
254 | { | |
255 | printf("[%d] group entry %u.%s had password \"%s\" (not \"%s\")\n", i, | |
256 | e->gr_gid, e->gr_name, | |
257 | g->gr_passwd, e->gr_passwd); | |
258 | ++retval; | |
259 | } | |
260 | ||
261 | /* Now compare group members... */ | |
262 | ||
263 | if (e->gr_mem != NULL && g->gr_mem == NULL) | |
264 | { | |
265 | printf("[%d] group entry %u.%s missing member list\n", i, | |
266 | e->gr_gid, e->gr_name); | |
267 | ++retval; | |
268 | } | |
269 | else if (e->gr_mem == NULL && g->gr_mem != NULL) | |
270 | { | |
271 | printf("[%d] group entry %u.%s has unexpected member list\n", i, | |
272 | e->gr_gid, e->gr_name); | |
273 | ++retval; | |
274 | } | |
275 | else if (e->gr_mem == NULL && g->gr_mem == NULL) | |
276 | { | |
277 | /* This case is OK. */ | |
278 | } | |
279 | else | |
280 | { | |
281 | /* Compare two existing lists. */ | |
282 | j = 0; | |
283 | for (;;) | |
284 | { | |
285 | if (g->gr_mem[j] == NULL && e->gr_mem[j] == NULL) | |
286 | { | |
287 | /* Matching end-of-lists. */ | |
288 | break; | |
289 | } | |
290 | if (g->gr_mem[j] == NULL) | |
291 | { | |
292 | printf ("[%d] group member list for %u.%s is too short.\n", i, | |
293 | e->gr_gid, e->gr_name); | |
294 | ++retval; | |
295 | break; | |
296 | } | |
297 | if (e->gr_mem[j] == NULL) | |
298 | { | |
299 | printf ("[%d] group member list for %u.%s is too long.\n", i, | |
300 | e->gr_gid, e->gr_name); | |
301 | ++retval; | |
302 | break; | |
303 | } | |
304 | if (strcmp (g->gr_mem[j], e->gr_mem[j]) != 0) | |
305 | { | |
306 | printf ("[%d] group member list for %u.%s differs: %s vs %s.\n", i, | |
307 | e->gr_gid, e->gr_name, | |
308 | e->gr_mem[j], g->gr_mem[j]); | |
309 | ++retval; | |
310 | } | |
311 | ||
312 | j++; | |
313 | } | |
314 | } | |
315 | ||
316 | if (retval > 0) | |
317 | { | |
318 | /* Left in for debugging later, if needed. */ | |
319 | print_group (g); | |
320 | print_group (e); | |
321 | } | |
322 | ||
323 | return retval; | |
324 | } |