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1 | /*** | |
2 | This file is part of systemd. | |
3 | ||
4 | Copyright 2014 Lennart Poettering | |
5 | ||
6 | systemd is free software; you can redistribute it and/or modify it | |
7 | under the terms of the GNU Lesser General Public License as published by | |
8 | the Free Software Foundation; either version 2.1 of the License, or | |
9 | (at your option) any later version. | |
10 | ||
11 | systemd is distributed in the hope that it will be useful, but | |
12 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | Lesser General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU Lesser General Public License | |
17 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
18 | ***/ | |
19 | ||
20 | #include "alloc-util.h" | |
21 | #include "dns-domain.h" | |
22 | #include "macro.h" | |
23 | #include "string-util.h" | |
24 | ||
25 | static void test_dns_label_unescape_one(const char *what, const char *expect, size_t buffer_sz, int ret) { | |
26 | char buffer[buffer_sz]; | |
27 | int r; | |
28 | ||
29 | r = dns_label_unescape(&what, buffer, buffer_sz); | |
30 | assert_se(r == ret); | |
31 | ||
32 | if (r < 0) | |
33 | return; | |
34 | ||
35 | assert_se(streq(buffer, expect)); | |
36 | } | |
37 | ||
38 | static void test_dns_label_unescape(void) { | |
39 | test_dns_label_unescape_one("hallo", "hallo", 6, 5); | |
40 | test_dns_label_unescape_one("hallo", "hallo", 4, -ENOBUFS); | |
41 | test_dns_label_unescape_one("", "", 10, 0); | |
42 | test_dns_label_unescape_one("hallo\\.foobar", "hallo.foobar", 20, 12); | |
43 | test_dns_label_unescape_one("hallo.foobar", "hallo", 10, 5); | |
44 | test_dns_label_unescape_one("hallo\n.foobar", "hallo", 20, -EINVAL); | |
45 | test_dns_label_unescape_one("hallo\\", "hallo", 20, -EINVAL); | |
46 | test_dns_label_unescape_one("hallo\\032 ", "hallo ", 20, 7); | |
47 | test_dns_label_unescape_one(".", "", 20, 0); | |
48 | test_dns_label_unescape_one("..", "", 20, -EINVAL); | |
49 | test_dns_label_unescape_one(".foobar", "", 20, -EINVAL); | |
50 | test_dns_label_unescape_one("foobar.", "foobar", 20, 6); | |
51 | test_dns_label_unescape_one("foobar..", "foobar", 20, -EINVAL); | |
52 | } | |
53 | ||
54 | static void test_dns_name_to_wire_format_one(const char *what, const char *expect, size_t buffer_sz, int ret) { | |
55 | uint8_t buffer[buffer_sz]; | |
56 | int r; | |
57 | ||
58 | r = dns_name_to_wire_format(what, buffer, buffer_sz, false); | |
59 | assert_se(r == ret); | |
60 | ||
61 | if (r < 0) | |
62 | return; | |
63 | ||
64 | assert_se(!memcmp(buffer, expect, r)); | |
65 | } | |
66 | ||
67 | static void test_dns_name_to_wire_format(void) { | |
68 | static const char out0[] = { 0 }; | |
69 | static const char out1[] = { 3, 'f', 'o', 'o', 0 }; | |
70 | static const char out2[] = { 5, 'h', 'a', 'l', 'l', 'o', 3, 'f', 'o', 'o', 3, 'b', 'a', 'r', 0 }; | |
71 | static const char out3[] = { 4, ' ', 'f', 'o', 'o', 3, 'b', 'a', 'r', 0 }; | |
72 | static const char out4[] = { 9, 'a', '1', '2', '3', '4', '5', '6', '7', '8', | |
73 | 9, 'a', '1', '2', '3', '4', '5', '6', '7', '8', | |
74 | 9, 'a', '1', '2', '3', '4', '5', '6', '7', '8', | |
75 | 9, 'a', '1', '2', '3', '4', '5', '6', '7', '8', | |
76 | 9, 'a', '1', '2', '3', '4', '5', '6', '7', '8', | |
77 | 9, 'a', '1', '2', '3', '4', '5', '6', '7', '8', | |
78 | 9, 'a', '1', '2', '3', '4', '5', '6', '7', '8', | |
79 | 9, 'a', '1', '2', '3', '4', '5', '6', '7', '8', | |
80 | 9, 'a', '1', '2', '3', '4', '5', '6', '7', '8', | |
81 | 9, 'a', '1', '2', '3', '4', '5', '6', '7', '8', | |
82 | 9, 'a', '1', '2', '3', '4', '5', '6', '7', '8', | |
83 | 9, 'a', '1', '2', '3', '4', '5', '6', '7', '8', | |
84 | 9, 'a', '1', '2', '3', '4', '5', '6', '7', '8', | |
85 | 9, 'a', '1', '2', '3', '4', '5', '6', '7', '8', | |
86 | 9, 'a', '1', '2', '3', '4', '5', '6', '7', '8', | |
87 | 9, 'a', '1', '2', '3', '4', '5', '6', '7', '8', | |
88 | 9, 'a', '1', '2', '3', '4', '5', '6', '7', '8', | |
89 | 9, 'a', '1', '2', '3', '4', '5', '6', '7', '8', | |
90 | 9, 'a', '1', '2', '3', '4', '5', '6', '7', '8', | |
91 | 9, 'a', '1', '2', '3', '4', '5', '6', '7', '8', | |
92 | 9, 'a', '1', '2', '3', '4', '5', '6', '7', '8', | |
93 | 9, 'a', '1', '2', '3', '4', '5', '6', '7', '8', | |
94 | 9, 'a', '1', '2', '3', '4', '5', '6', '7', '8', | |
95 | 9, 'a', '1', '2', '3', '4', '5', '6', '7', '8', | |
96 | 9, 'a', '1', '2', '3', '4', '5', '6', '7', '8', | |
97 | 3, 'a', '1', '2', 0 }; | |
98 | ||
99 | test_dns_name_to_wire_format_one("", out0, sizeof(out0), sizeof(out0)); | |
100 | ||
101 | test_dns_name_to_wire_format_one("foo", out1, sizeof(out1), sizeof(out1)); | |
102 | test_dns_name_to_wire_format_one("foo", out1, sizeof(out1) + 1, sizeof(out1)); | |
103 | test_dns_name_to_wire_format_one("foo", out1, sizeof(out1) - 1, -ENOBUFS); | |
104 | ||
105 | test_dns_name_to_wire_format_one("hallo.foo.bar", out2, sizeof(out2), sizeof(out2)); | |
106 | test_dns_name_to_wire_format_one("hallo.foo..bar", NULL, 32, -EINVAL); | |
107 | ||
108 | test_dns_name_to_wire_format_one("\\032foo.bar", out3, sizeof(out3), sizeof(out3)); | |
109 | ||
110 | test_dns_name_to_wire_format_one("a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a123", NULL, 500, -EINVAL); | |
111 | test_dns_name_to_wire_format_one("a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12", out4, sizeof(out4), sizeof(out4)); | |
112 | } | |
113 | ||
114 | static void test_dns_label_unescape_suffix_one(const char *what, const char *expect1, const char *expect2, size_t buffer_sz, int ret1, int ret2) { | |
115 | char buffer[buffer_sz]; | |
116 | const char *label; | |
117 | int r; | |
118 | ||
119 | label = what + strlen(what); | |
120 | ||
121 | r = dns_label_unescape_suffix(what, &label, buffer, buffer_sz); | |
122 | assert_se(r == ret1); | |
123 | if (r >= 0) | |
124 | assert_se(streq(buffer, expect1)); | |
125 | ||
126 | r = dns_label_unescape_suffix(what, &label, buffer, buffer_sz); | |
127 | assert_se(r == ret2); | |
128 | if (r >= 0) | |
129 | assert_se(streq(buffer, expect2)); | |
130 | } | |
131 | ||
132 | static void test_dns_label_unescape_suffix(void) { | |
133 | test_dns_label_unescape_suffix_one("hallo", "hallo", "", 6, 5, 0); | |
134 | test_dns_label_unescape_suffix_one("hallo", "hallo", "", 4, -ENOBUFS, -ENOBUFS); | |
135 | test_dns_label_unescape_suffix_one("", "", "", 10, 0, 0); | |
136 | test_dns_label_unescape_suffix_one("hallo\\.foobar", "hallo.foobar", "", 20, 12, 0); | |
137 | test_dns_label_unescape_suffix_one("hallo.foobar", "foobar", "hallo", 10, 6, 5); | |
138 | test_dns_label_unescape_suffix_one("hallo.foobar\n", "foobar", "foobar", 20, -EINVAL, -EINVAL); | |
139 | test_dns_label_unescape_suffix_one("hallo\\", "hallo", "hallo", 20, -EINVAL, -EINVAL); | |
140 | test_dns_label_unescape_suffix_one("hallo\\032 ", "hallo ", "", 20, 7, 0); | |
141 | test_dns_label_unescape_suffix_one(".", "", "", 20, 0, 0); | |
142 | test_dns_label_unescape_suffix_one("..", "", "", 20, 0, -EINVAL); | |
143 | test_dns_label_unescape_suffix_one(".foobar", "foobar", "", 20, 6, -EINVAL); | |
144 | test_dns_label_unescape_suffix_one("foobar.", "foobar", "", 20, 6, 0); | |
145 | test_dns_label_unescape_suffix_one("foo\\\\bar", "foo\\bar", "", 20, 7, 0); | |
146 | test_dns_label_unescape_suffix_one("foo.bar", "bar", "foo", 20, 3, 3); | |
147 | test_dns_label_unescape_suffix_one("foo..bar", "bar", "", 20, 3, -EINVAL); | |
148 | test_dns_label_unescape_suffix_one("foo...bar", "bar", "", 20, 3, -EINVAL); | |
149 | test_dns_label_unescape_suffix_one("foo\\.bar", "foo.bar", "", 20, 7, 0); | |
150 | test_dns_label_unescape_suffix_one("foo\\\\.bar", "bar", "foo\\", 20, 3, 4); | |
151 | test_dns_label_unescape_suffix_one("foo\\\\\\.bar", "foo\\.bar", "", 20, 8, 0); | |
152 | } | |
153 | ||
154 | static void test_dns_label_escape_one(const char *what, size_t l, const char *expect, int ret) { | |
155 | _cleanup_free_ char *t = NULL; | |
156 | int r; | |
157 | ||
158 | r = dns_label_escape_new(what, l, &t); | |
159 | assert_se(r == ret); | |
160 | ||
161 | if (r < 0) | |
162 | return; | |
163 | ||
164 | assert_se(streq_ptr(expect, t)); | |
165 | } | |
166 | ||
167 | static void test_dns_label_escape(void) { | |
168 | test_dns_label_escape_one("", 0, NULL, -EINVAL); | |
169 | test_dns_label_escape_one("hallo", 5, "hallo", 5); | |
170 | test_dns_label_escape_one("hallo", 6, "hallo\\000", 9); | |
171 | test_dns_label_escape_one("hallo hallo.foobar,waldi", 24, "hallo\\032hallo\\.foobar\\044waldi", 31); | |
172 | } | |
173 | ||
174 | static void test_dns_name_normalize_one(const char *what, const char *expect, int ret) { | |
175 | _cleanup_free_ char *t = NULL; | |
176 | int r; | |
177 | ||
178 | r = dns_name_normalize(what, &t); | |
179 | assert_se(r == ret); | |
180 | ||
181 | if (r < 0) | |
182 | return; | |
183 | ||
184 | assert_se(streq_ptr(expect, t)); | |
185 | } | |
186 | ||
187 | static void test_dns_name_normalize(void) { | |
188 | test_dns_name_normalize_one("", ".", 0); | |
189 | test_dns_name_normalize_one("f", "f", 0); | |
190 | test_dns_name_normalize_one("f.waldi", "f.waldi", 0); | |
191 | test_dns_name_normalize_one("f \\032.waldi", "f\\032\\032.waldi", 0); | |
192 | test_dns_name_normalize_one("\\000", "\\000", 0); | |
193 | test_dns_name_normalize_one("..", NULL, -EINVAL); | |
194 | test_dns_name_normalize_one(".foobar", NULL, -EINVAL); | |
195 | test_dns_name_normalize_one("foobar.", "foobar", 0); | |
196 | test_dns_name_normalize_one(".", ".", 0); | |
197 | } | |
198 | ||
199 | static void test_dns_name_equal_one(const char *a, const char *b, int ret) { | |
200 | int r; | |
201 | ||
202 | r = dns_name_equal(a, b); | |
203 | assert_se(r == ret); | |
204 | ||
205 | r = dns_name_equal(b, a); | |
206 | assert_se(r == ret); | |
207 | } | |
208 | ||
209 | static void test_dns_name_equal(void) { | |
210 | test_dns_name_equal_one("", "", true); | |
211 | test_dns_name_equal_one("x", "x", true); | |
212 | test_dns_name_equal_one("x", "x.", true); | |
213 | test_dns_name_equal_one("abc.def", "abc.def", true); | |
214 | test_dns_name_equal_one("abc.def", "ABC.def", true); | |
215 | test_dns_name_equal_one("abc.def", "CBA.def", false); | |
216 | test_dns_name_equal_one("", "xxx", false); | |
217 | test_dns_name_equal_one("ab", "a", false); | |
218 | test_dns_name_equal_one("\\000", "\\000", true); | |
219 | test_dns_name_equal_one(".", "", true); | |
220 | test_dns_name_equal_one(".", ".", true); | |
221 | test_dns_name_equal_one("..", "..", -EINVAL); | |
222 | } | |
223 | ||
224 | static void test_dns_name_between_one(const char *a, const char *b, const char *c, int ret) { | |
225 | int r; | |
226 | ||
227 | r = dns_name_between(a, b, c); | |
228 | assert_se(r == ret); | |
229 | ||
230 | r = dns_name_between(c, b, a); | |
231 | if (ret >= 0) | |
232 | assert_se(r == 0); | |
233 | else | |
234 | assert_se(r == ret); | |
235 | } | |
236 | ||
237 | static void test_dns_name_between(void) { | |
238 | /* see https://tools.ietf.org/html/rfc4034#section-6.1 | |
239 | Note that we use "\033.z.example" in stead of "\001.z.example" as we | |
240 | consider the latter invalid */ | |
241 | test_dns_name_between_one("example", "a.example", "yljkjljk.a.example", true); | |
242 | test_dns_name_between_one("a.example", "yljkjljk.a.example", "Z.a.example", true); | |
243 | test_dns_name_between_one("yljkjljk.a.example", "Z.a.example", "zABC.a.EXAMPLE", true); | |
244 | test_dns_name_between_one("Z.a.example", "zABC.a.EXAMPLE", "z.example", true); | |
245 | test_dns_name_between_one("zABC.a.EXAMPLE", "z.example", "\\033.z.example", true); | |
246 | test_dns_name_between_one("z.example", "\\033.z.example", "*.z.example", true); | |
247 | test_dns_name_between_one("\\033.z.example", "*.z.example", "\\200.z.example", true); | |
248 | test_dns_name_between_one("*.z.example", "\\200.z.example", "example", true); | |
249 | test_dns_name_between_one("\\200.z.example", "example", "a.example", true); | |
250 | ||
251 | test_dns_name_between_one("example", "a.example", "example", -EINVAL); | |
252 | test_dns_name_between_one("example", "example", "yljkjljk.a.example", false); | |
253 | test_dns_name_between_one("example", "yljkjljk.a.example", "yljkjljk.a.example", false); | |
254 | } | |
255 | ||
256 | static void test_dns_name_endswith_one(const char *a, const char *b, int ret) { | |
257 | assert_se(dns_name_endswith(a, b) == ret); | |
258 | } | |
259 | ||
260 | static void test_dns_name_endswith(void) { | |
261 | test_dns_name_endswith_one("", "", true); | |
262 | test_dns_name_endswith_one("", "xxx", false); | |
263 | test_dns_name_endswith_one("xxx", "", true); | |
264 | test_dns_name_endswith_one("x", "x", true); | |
265 | test_dns_name_endswith_one("x", "y", false); | |
266 | test_dns_name_endswith_one("x.y", "y", true); | |
267 | test_dns_name_endswith_one("x.y", "Y", true); | |
268 | test_dns_name_endswith_one("x.y", "x", false); | |
269 | test_dns_name_endswith_one("x.y.z", "Z", true); | |
270 | test_dns_name_endswith_one("x.y.z", "y.Z", true); | |
271 | test_dns_name_endswith_one("x.y.z", "x.y.Z", true); | |
272 | test_dns_name_endswith_one("x.y.z", "waldo", false); | |
273 | test_dns_name_endswith_one("x.y.z.u.v.w", "y.z", false); | |
274 | test_dns_name_endswith_one("x.y.z.u.v.w", "u.v.w", true); | |
275 | test_dns_name_endswith_one("x.y\001.z", "waldo", -EINVAL); | |
276 | } | |
277 | ||
278 | static void test_dns_name_startswith_one(const char *a, const char *b, int ret) { | |
279 | assert_se(dns_name_startswith(a, b) == ret); | |
280 | } | |
281 | ||
282 | static void test_dns_name_startswith(void) { | |
283 | test_dns_name_startswith_one("", "", true); | |
284 | test_dns_name_startswith_one("", "xxx", false); | |
285 | test_dns_name_startswith_one("xxx", "", true); | |
286 | test_dns_name_startswith_one("x", "x", true); | |
287 | test_dns_name_startswith_one("x", "y", false); | |
288 | test_dns_name_startswith_one("x.y", "x.y", true); | |
289 | test_dns_name_startswith_one("x.y", "y.x", false); | |
290 | test_dns_name_startswith_one("x.y", "x", true); | |
291 | test_dns_name_startswith_one("x.y", "X", true); | |
292 | test_dns_name_startswith_one("x.y", "y", false); | |
293 | test_dns_name_startswith_one("x.y", "", true); | |
294 | test_dns_name_startswith_one("x.y", "X", true); | |
295 | } | |
296 | ||
297 | static void test_dns_name_is_root(void) { | |
298 | assert_se(dns_name_is_root("")); | |
299 | assert_se(dns_name_is_root(".")); | |
300 | assert_se(!dns_name_is_root("xxx")); | |
301 | assert_se(!dns_name_is_root("xxx.")); | |
302 | assert_se(!dns_name_is_root("..")); | |
303 | } | |
304 | ||
305 | static void test_dns_name_is_single_label(void) { | |
306 | assert_se(!dns_name_is_single_label("")); | |
307 | assert_se(!dns_name_is_single_label(".")); | |
308 | assert_se(!dns_name_is_single_label("..")); | |
309 | assert_se(dns_name_is_single_label("x")); | |
310 | assert_se(dns_name_is_single_label("x.")); | |
311 | assert_se(!dns_name_is_single_label("xx.yy")); | |
312 | } | |
313 | ||
314 | static void test_dns_name_reverse_one(const char *address, const char *name) { | |
315 | _cleanup_free_ char *p = NULL; | |
316 | union in_addr_union a, b = {}; | |
317 | int familya, familyb; | |
318 | ||
319 | assert_se(in_addr_from_string_auto(address, &familya, &a) >= 0); | |
320 | assert_se(dns_name_reverse(familya, &a, &p) >= 0); | |
321 | assert_se(streq(p, name)); | |
322 | assert_se(dns_name_address(p, &familyb, &b) > 0); | |
323 | assert_se(familya == familyb); | |
324 | assert_se(in_addr_equal(familya, &a, &b)); | |
325 | } | |
326 | ||
327 | static void test_dns_name_reverse(void) { | |
328 | test_dns_name_reverse_one("47.11.8.15", "15.8.11.47.in-addr.arpa"); | |
329 | test_dns_name_reverse_one("fe80::47", "7.4.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.8.e.f.ip6.arpa"); | |
330 | test_dns_name_reverse_one("127.0.0.1", "1.0.0.127.in-addr.arpa"); | |
331 | test_dns_name_reverse_one("::1", "1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa"); | |
332 | } | |
333 | ||
334 | static void test_dns_name_concat_one(const char *a, const char *b, int r, const char *result) { | |
335 | _cleanup_free_ char *p = NULL; | |
336 | ||
337 | assert_se(dns_name_concat(a, b, &p) == r); | |
338 | assert_se(streq_ptr(p, result)); | |
339 | } | |
340 | ||
341 | static void test_dns_name_concat(void) { | |
342 | test_dns_name_concat_one("", "", 0, "."); | |
343 | test_dns_name_concat_one(".", "", 0, "."); | |
344 | test_dns_name_concat_one("", ".", 0, "."); | |
345 | test_dns_name_concat_one(".", ".", 0, "."); | |
346 | test_dns_name_concat_one("foo", "bar", 0, "foo.bar"); | |
347 | test_dns_name_concat_one("foo.foo", "bar.bar", 0, "foo.foo.bar.bar"); | |
348 | test_dns_name_concat_one("foo", NULL, 0, "foo"); | |
349 | test_dns_name_concat_one("foo", ".", 0, "foo"); | |
350 | test_dns_name_concat_one("foo.", "bar.", 0, "foo.bar"); | |
351 | test_dns_name_concat_one(NULL, NULL, 0, "."); | |
352 | test_dns_name_concat_one(NULL, ".", 0, "."); | |
353 | test_dns_name_concat_one(NULL, "foo", 0, "foo"); | |
354 | } | |
355 | ||
356 | static void test_dns_name_is_valid_one(const char *s, int ret) { | |
357 | assert_se(dns_name_is_valid(s) == ret); | |
358 | } | |
359 | ||
360 | static void test_dns_name_is_valid(void) { | |
361 | test_dns_name_is_valid_one("foo", 1); | |
362 | test_dns_name_is_valid_one("foo.", 1); | |
363 | test_dns_name_is_valid_one("foo..", 0); | |
364 | test_dns_name_is_valid_one("Foo", 1); | |
365 | test_dns_name_is_valid_one("foo.bar", 1); | |
366 | test_dns_name_is_valid_one("foo.bar.baz", 1); | |
367 | test_dns_name_is_valid_one("", 1); | |
368 | test_dns_name_is_valid_one("foo..bar", 0); | |
369 | test_dns_name_is_valid_one(".foo.bar", 0); | |
370 | test_dns_name_is_valid_one("foo.bar.", 1); | |
371 | test_dns_name_is_valid_one("foo.bar..", 0); | |
372 | test_dns_name_is_valid_one("\\zbar", 0); | |
373 | test_dns_name_is_valid_one("ä", 1); | |
374 | test_dns_name_is_valid_one("\n", 0); | |
375 | ||
376 | /* 256 characters */ | |
377 | test_dns_name_is_valid_one("a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345", 0); | |
378 | ||
379 | /* 255 characters */ | |
380 | test_dns_name_is_valid_one("a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a1234", 0); | |
381 | ||
382 | /* 254 characters */ | |
383 | test_dns_name_is_valid_one("a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a123", 0); | |
384 | ||
385 | /* 253 characters */ | |
386 | test_dns_name_is_valid_one("a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12", 1); | |
387 | ||
388 | /* label of 64 chars length */ | |
389 | test_dns_name_is_valid_one("a123456789a123456789a123456789a123456789a123456789a123456789a123", 0); | |
390 | ||
391 | /* label of 63 chars length */ | |
392 | test_dns_name_is_valid_one("a123456789a123456789a123456789a123456789a123456789a123456789a12", 1); | |
393 | } | |
394 | ||
395 | static void test_dns_service_name_is_valid(void) { | |
396 | assert_se(dns_service_name_is_valid("Lennart's Compüter")); | |
397 | assert_se(dns_service_name_is_valid("piff.paff")); | |
398 | ||
399 | assert_se(!dns_service_name_is_valid(NULL)); | |
400 | assert_se(!dns_service_name_is_valid("")); | |
401 | assert_se(!dns_service_name_is_valid("foo\nbar")); | |
402 | assert_se(!dns_service_name_is_valid("foo\201bar")); | |
403 | assert_se(!dns_service_name_is_valid("this is an overly long string that is certainly longer than 63 characters")); | |
404 | } | |
405 | ||
406 | static void test_dns_srv_type_is_valid(void) { | |
407 | ||
408 | assert_se(dns_srv_type_is_valid("_http._tcp")); | |
409 | assert_se(dns_srv_type_is_valid("_foo-bar._tcp")); | |
410 | assert_se(dns_srv_type_is_valid("_w._udp")); | |
411 | assert_se(dns_srv_type_is_valid("_a800._tcp")); | |
412 | assert_se(dns_srv_type_is_valid("_a-800._tcp")); | |
413 | ||
414 | assert_se(!dns_srv_type_is_valid(NULL)); | |
415 | assert_se(!dns_srv_type_is_valid("")); | |
416 | assert_se(!dns_srv_type_is_valid("x")); | |
417 | assert_se(!dns_srv_type_is_valid("_foo")); | |
418 | assert_se(!dns_srv_type_is_valid("_tcp")); | |
419 | assert_se(!dns_srv_type_is_valid("_")); | |
420 | assert_se(!dns_srv_type_is_valid("_foo.")); | |
421 | assert_se(!dns_srv_type_is_valid("_föo._tcp")); | |
422 | assert_se(!dns_srv_type_is_valid("_f\no._tcp")); | |
423 | assert_se(!dns_srv_type_is_valid("_800._tcp")); | |
424 | assert_se(!dns_srv_type_is_valid("_-800._tcp")); | |
425 | assert_se(!dns_srv_type_is_valid("_-foo._tcp")); | |
426 | assert_se(!dns_srv_type_is_valid("_piep._foo._udp")); | |
427 | } | |
428 | ||
429 | static void test_dns_service_join_one(const char *a, const char *b, const char *c, int r, const char *d) { | |
430 | _cleanup_free_ char *x = NULL, *y = NULL, *z = NULL, *t = NULL; | |
431 | ||
432 | assert_se(dns_service_join(a, b, c, &t) == r); | |
433 | assert_se(streq_ptr(t, d)); | |
434 | ||
435 | if (r < 0) | |
436 | return; | |
437 | ||
438 | assert_se(dns_service_split(t, &x, &y, &z) >= 0); | |
439 | assert_se(streq_ptr(a, x)); | |
440 | assert_se(streq_ptr(b, y)); | |
441 | assert_se(dns_name_equal(c, z) > 0); | |
442 | } | |
443 | ||
444 | static void test_dns_service_join(void) { | |
445 | test_dns_service_join_one("", "", "", -EINVAL, NULL); | |
446 | test_dns_service_join_one("", "_http._tcp", "", -EINVAL, NULL); | |
447 | test_dns_service_join_one("", "_http._tcp", "foo", -EINVAL, NULL); | |
448 | test_dns_service_join_one("foo", "", "foo", -EINVAL, NULL); | |
449 | test_dns_service_join_one("foo", "foo", "foo", -EINVAL, NULL); | |
450 | ||
451 | test_dns_service_join_one("foo", "_http._tcp", "", 0, "foo._http._tcp"); | |
452 | test_dns_service_join_one(NULL, "_http._tcp", "", 0, "_http._tcp"); | |
453 | test_dns_service_join_one("foo", "_http._tcp", "foo", 0, "foo._http._tcp.foo"); | |
454 | test_dns_service_join_one(NULL, "_http._tcp", "foo", 0, "_http._tcp.foo"); | |
455 | test_dns_service_join_one("Lennart's PC", "_pc._tcp", "foo.bar.com", 0, "Lennart\\039s\\032PC._pc._tcp.foo.bar.com"); | |
456 | test_dns_service_join_one(NULL, "_pc._tcp", "foo.bar.com", 0, "_pc._tcp.foo.bar.com"); | |
457 | } | |
458 | ||
459 | static void test_dns_service_split_one(const char *joined, const char *a, const char *b, const char *c, int r) { | |
460 | _cleanup_free_ char *x = NULL, *y = NULL, *z = NULL, *t = NULL; | |
461 | ||
462 | assert_se(dns_service_split(joined, &x, &y, &z) == r); | |
463 | assert_se(streq_ptr(x, a)); | |
464 | assert_se(streq_ptr(y, b)); | |
465 | assert_se(streq_ptr(z, c)); | |
466 | ||
467 | if (r < 0) | |
468 | return; | |
469 | ||
470 | if (y) { | |
471 | assert_se(dns_service_join(x, y, z, &t) == 0); | |
472 | assert_se(dns_name_equal(joined, t) > 0); | |
473 | } else | |
474 | assert_se(!x && dns_name_equal(z, joined) > 0); | |
475 | } | |
476 | ||
477 | static void test_dns_service_split(void) { | |
478 | test_dns_service_split_one("", NULL, NULL, ".", 0); | |
479 | test_dns_service_split_one("foo", NULL, NULL, "foo", 0); | |
480 | test_dns_service_split_one("foo.bar", NULL, NULL, "foo.bar", 0); | |
481 | test_dns_service_split_one("_foo.bar", NULL, NULL, "_foo.bar", 0); | |
482 | test_dns_service_split_one("_foo._bar", NULL, "_foo._bar", ".", 0); | |
483 | test_dns_service_split_one("_meh._foo._bar", "_meh", "_foo._bar", ".", 0); | |
484 | test_dns_service_split_one("Wuff\\032Wuff._foo._bar.waldo.com", "Wuff Wuff", "_foo._bar", "waldo.com", 0); | |
485 | } | |
486 | ||
487 | static void test_dns_name_change_suffix_one(const char *name, const char *old_suffix, const char *new_suffix, int r, const char *result) { | |
488 | _cleanup_free_ char *s = NULL; | |
489 | ||
490 | assert_se(dns_name_change_suffix(name, old_suffix, new_suffix, &s) == r); | |
491 | assert_se(streq_ptr(s, result)); | |
492 | } | |
493 | ||
494 | static void test_dns_name_change_suffix(void) { | |
495 | test_dns_name_change_suffix_one("foo.bar", "bar", "waldo", 1, "foo.waldo"); | |
496 | test_dns_name_change_suffix_one("foo.bar.waldi.quux", "foo.bar.waldi.quux", "piff.paff", 1, "piff.paff"); | |
497 | test_dns_name_change_suffix_one("foo.bar.waldi.quux", "bar.waldi.quux", "piff.paff", 1, "foo.piff.paff"); | |
498 | test_dns_name_change_suffix_one("foo.bar.waldi.quux", "waldi.quux", "piff.paff", 1, "foo.bar.piff.paff"); | |
499 | test_dns_name_change_suffix_one("foo.bar.waldi.quux", "quux", "piff.paff", 1, "foo.bar.waldi.piff.paff"); | |
500 | test_dns_name_change_suffix_one("foo.bar.waldi.quux", "", "piff.paff", 1, "foo.bar.waldi.quux.piff.paff"); | |
501 | test_dns_name_change_suffix_one("", "", "piff.paff", 1, "piff.paff"); | |
502 | test_dns_name_change_suffix_one("", "", "", 1, "."); | |
503 | test_dns_name_change_suffix_one("a", "b", "c", 0, NULL); | |
504 | } | |
505 | ||
506 | static void test_dns_name_suffix_one(const char *name, unsigned n_labels, const char *result, int ret) { | |
507 | const char *p = NULL; | |
508 | ||
509 | assert_se(ret == dns_name_suffix(name, n_labels, &p)); | |
510 | assert_se(streq_ptr(p, result)); | |
511 | } | |
512 | ||
513 | static void test_dns_name_suffix(void) { | |
514 | test_dns_name_suffix_one("foo.bar", 2, "foo.bar", 0); | |
515 | test_dns_name_suffix_one("foo.bar", 1, "bar", 1); | |
516 | test_dns_name_suffix_one("foo.bar", 0, "", 2); | |
517 | test_dns_name_suffix_one("foo.bar", 3, NULL, -EINVAL); | |
518 | test_dns_name_suffix_one("foo.bar", 4, NULL, -EINVAL); | |
519 | ||
520 | test_dns_name_suffix_one("bar", 1, "bar", 0); | |
521 | test_dns_name_suffix_one("bar", 0, "", 1); | |
522 | test_dns_name_suffix_one("bar", 2, NULL, -EINVAL); | |
523 | test_dns_name_suffix_one("bar", 3, NULL, -EINVAL); | |
524 | ||
525 | test_dns_name_suffix_one("", 0, "", 0); | |
526 | test_dns_name_suffix_one("", 1, NULL, -EINVAL); | |
527 | test_dns_name_suffix_one("", 2, NULL, -EINVAL); | |
528 | } | |
529 | ||
530 | static void test_dns_name_count_labels_one(const char *name, int n) { | |
531 | assert_se(dns_name_count_labels(name) == n); | |
532 | } | |
533 | ||
534 | static void test_dns_name_count_labels(void) { | |
535 | test_dns_name_count_labels_one("foo.bar.quux.", 3); | |
536 | test_dns_name_count_labels_one("foo.bar.quux", 3); | |
537 | test_dns_name_count_labels_one("foo.bar.", 2); | |
538 | test_dns_name_count_labels_one("foo.bar", 2); | |
539 | test_dns_name_count_labels_one("foo.", 1); | |
540 | test_dns_name_count_labels_one("foo", 1); | |
541 | test_dns_name_count_labels_one("", 0); | |
542 | test_dns_name_count_labels_one(".", 0); | |
543 | test_dns_name_count_labels_one("..", -EINVAL); | |
544 | } | |
545 | ||
546 | static void test_dns_name_equal_skip_one(const char *a, unsigned n_labels, const char *b, int ret) { | |
547 | assert_se(dns_name_equal_skip(a, n_labels, b) == ret); | |
548 | } | |
549 | ||
550 | static void test_dns_name_equal_skip(void) { | |
551 | test_dns_name_equal_skip_one("foo", 0, "bar", 0); | |
552 | test_dns_name_equal_skip_one("foo", 0, "foo", 1); | |
553 | test_dns_name_equal_skip_one("foo", 1, "foo", 0); | |
554 | test_dns_name_equal_skip_one("foo", 2, "foo", 0); | |
555 | ||
556 | test_dns_name_equal_skip_one("foo.bar", 0, "foo.bar", 1); | |
557 | test_dns_name_equal_skip_one("foo.bar", 1, "foo.bar", 0); | |
558 | test_dns_name_equal_skip_one("foo.bar", 2, "foo.bar", 0); | |
559 | test_dns_name_equal_skip_one("foo.bar", 3, "foo.bar", 0); | |
560 | ||
561 | test_dns_name_equal_skip_one("foo.bar", 0, "bar", 0); | |
562 | test_dns_name_equal_skip_one("foo.bar", 1, "bar", 1); | |
563 | test_dns_name_equal_skip_one("foo.bar", 2, "bar", 0); | |
564 | test_dns_name_equal_skip_one("foo.bar", 3, "bar", 0); | |
565 | ||
566 | test_dns_name_equal_skip_one("foo.bar", 0, "", 0); | |
567 | test_dns_name_equal_skip_one("foo.bar", 1, "", 0); | |
568 | test_dns_name_equal_skip_one("foo.bar", 2, "", 1); | |
569 | test_dns_name_equal_skip_one("foo.bar", 3, "", 0); | |
570 | ||
571 | test_dns_name_equal_skip_one("", 0, "", 1); | |
572 | test_dns_name_equal_skip_one("", 1, "", 0); | |
573 | test_dns_name_equal_skip_one("", 1, "foo", 0); | |
574 | test_dns_name_equal_skip_one("", 2, "foo", 0); | |
575 | } | |
576 | ||
577 | static void test_dns_name_compare_func(void) { | |
578 | assert_se(dns_name_compare_func("", "") == 0); | |
579 | assert_se(dns_name_compare_func("", ".") == 0); | |
580 | assert_se(dns_name_compare_func(".", "") == 0); | |
581 | assert_se(dns_name_compare_func("foo", "foo.") == 0); | |
582 | assert_se(dns_name_compare_func("foo.", "foo") == 0); | |
583 | assert_se(dns_name_compare_func("foo", "foo") == 0); | |
584 | assert_se(dns_name_compare_func("foo.", "foo.") == 0); | |
585 | assert_se(dns_name_compare_func("heise.de", "HEISE.DE.") == 0); | |
586 | ||
587 | assert_se(dns_name_compare_func("de.", "heise.de") != 0); | |
588 | } | |
589 | ||
590 | static void test_dns_name_common_suffix_one(const char *a, const char *b, const char *result) { | |
591 | const char *c; | |
592 | ||
593 | assert_se(dns_name_common_suffix(a, b, &c) >= 0); | |
594 | assert_se(streq(c, result)); | |
595 | } | |
596 | ||
597 | static void test_dns_name_common_suffix(void) { | |
598 | test_dns_name_common_suffix_one("", "", ""); | |
599 | test_dns_name_common_suffix_one("foo", "", ""); | |
600 | test_dns_name_common_suffix_one("", "foo", ""); | |
601 | test_dns_name_common_suffix_one("foo", "bar", ""); | |
602 | test_dns_name_common_suffix_one("bar", "foo", ""); | |
603 | test_dns_name_common_suffix_one("foo", "foo", "foo"); | |
604 | test_dns_name_common_suffix_one("quux.foo", "foo", "foo"); | |
605 | test_dns_name_common_suffix_one("foo", "quux.foo", "foo"); | |
606 | test_dns_name_common_suffix_one("this.is.a.short.sentence", "this.is.another.short.sentence", "short.sentence"); | |
607 | test_dns_name_common_suffix_one("FOO.BAR", "tEST.bAR", "BAR"); | |
608 | } | |
609 | ||
610 | static void test_dns_name_apply_idna_one(const char *s, const char *result) { | |
611 | #if defined(HAVE_LIBIDN2) || defined(HAVE_LIBIDN) | |
612 | _cleanup_free_ char *buf = NULL; | |
613 | assert_se(dns_name_apply_idna(s, &buf) >= 0); | |
614 | assert_se(dns_name_equal(buf, result) > 0); | |
615 | #endif | |
616 | } | |
617 | ||
618 | static void test_dns_name_apply_idna(void) { | |
619 | test_dns_name_apply_idna_one("", ""); | |
620 | test_dns_name_apply_idna_one("foo", "foo"); | |
621 | test_dns_name_apply_idna_one("foo.", "foo"); | |
622 | test_dns_name_apply_idna_one("foo.bar", "foo.bar"); | |
623 | test_dns_name_apply_idna_one("foo.bar.", "foo.bar"); | |
624 | test_dns_name_apply_idna_one("föö", "xn--f-1gaa"); | |
625 | test_dns_name_apply_idna_one("föö.", "xn--f-1gaa"); | |
626 | test_dns_name_apply_idna_one("föö.bär", "xn--f-1gaa.xn--br-via"); | |
627 | test_dns_name_apply_idna_one("föö.bär.", "xn--f-1gaa.xn--br-via"); | |
628 | } | |
629 | ||
630 | static void test_dns_name_is_valid_or_address(void) { | |
631 | assert_se(dns_name_is_valid_or_address(NULL) == 0); | |
632 | assert_se(dns_name_is_valid_or_address("") == 0); | |
633 | assert_se(dns_name_is_valid_or_address("foobar") > 0); | |
634 | assert_se(dns_name_is_valid_or_address("foobar.com") > 0); | |
635 | assert_se(dns_name_is_valid_or_address("foobar..com") == 0); | |
636 | assert_se(dns_name_is_valid_or_address("foobar.com.") > 0); | |
637 | assert_se(dns_name_is_valid_or_address("127.0.0.1") > 0); | |
638 | assert_se(dns_name_is_valid_or_address("::") > 0); | |
639 | assert_se(dns_name_is_valid_or_address("::1") > 0); | |
640 | } | |
641 | ||
642 | int main(int argc, char *argv[]) { | |
643 | ||
644 | test_dns_label_unescape(); | |
645 | test_dns_label_unescape_suffix(); | |
646 | test_dns_label_escape(); | |
647 | test_dns_name_normalize(); | |
648 | test_dns_name_equal(); | |
649 | test_dns_name_endswith(); | |
650 | test_dns_name_startswith(); | |
651 | test_dns_name_between(); | |
652 | test_dns_name_is_root(); | |
653 | test_dns_name_is_single_label(); | |
654 | test_dns_name_reverse(); | |
655 | test_dns_name_concat(); | |
656 | test_dns_name_is_valid(); | |
657 | test_dns_name_to_wire_format(); | |
658 | test_dns_service_name_is_valid(); | |
659 | test_dns_srv_type_is_valid(); | |
660 | test_dns_service_join(); | |
661 | test_dns_service_split(); | |
662 | test_dns_name_change_suffix(); | |
663 | test_dns_name_suffix(); | |
664 | test_dns_name_count_labels(); | |
665 | test_dns_name_equal_skip(); | |
666 | test_dns_name_compare_func(); | |
667 | test_dns_name_common_suffix(); | |
668 | test_dns_name_apply_idna(); | |
669 | test_dns_name_is_valid_or_address(); | |
670 | ||
671 | return 0; | |
672 | } |