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5eef597e MP |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2014 Lennart Poettering | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
9 | under the terms of the GNU Lesser General Public License as published by | |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | systemd is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | Lesser General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU Lesser General Public License | |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
20 | ***/ | |
21 | ||
e735f4d4 | 22 | #include "macro.h" |
86f210e9 | 23 | #include "dns-domain.h" |
5eef597e MP |
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, -ENOSPC); | |
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 | } | |
52 | ||
7035cd9e MP |
53 | 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) { |
54 | char buffer[buffer_sz]; | |
55 | const char *label; | |
56 | int r; | |
57 | ||
58 | label = what + strlen(what); | |
59 | ||
60 | r = dns_label_unescape_suffix(what, &label, buffer, buffer_sz); | |
61 | assert_se(r == ret1); | |
62 | if (r >= 0) | |
63 | assert_se(streq(buffer, expect1)); | |
64 | ||
65 | r = dns_label_unescape_suffix(what, &label, buffer, buffer_sz); | |
66 | assert_se(r == ret2); | |
67 | if (r >= 0) | |
68 | assert_se(streq(buffer, expect2)); | |
69 | } | |
70 | ||
71 | static void test_dns_label_unescape_suffix(void) { | |
72 | test_dns_label_unescape_suffix_one("hallo", "hallo", "", 6, 5, 0); | |
73 | test_dns_label_unescape_suffix_one("hallo", "hallo", "", 4, -ENOSPC, -ENOSPC); | |
74 | test_dns_label_unescape_suffix_one("", "", "", 10, 0, 0); | |
75 | test_dns_label_unescape_suffix_one("hallo\\.foobar", "hallo.foobar", "", 20, 12, 0); | |
76 | test_dns_label_unescape_suffix_one("hallo.foobar", "foobar", "hallo", 10, 6, 5); | |
77 | test_dns_label_unescape_suffix_one("hallo.foobar\n", "foobar", "foobar", 20, -EINVAL, -EINVAL); | |
78 | test_dns_label_unescape_suffix_one("hallo\\", "hallo", "hallo", 20, -EINVAL, -EINVAL); | |
79 | test_dns_label_unescape_suffix_one("hallo\\032 ", "hallo ", "", 20, 7, 0); | |
80 | test_dns_label_unescape_suffix_one(".", "", "", 20, 0, 0); | |
81 | test_dns_label_unescape_suffix_one("..", "", "", 20, 0, 0); | |
82 | test_dns_label_unescape_suffix_one(".foobar", "foobar", "", 20, 6, -EINVAL); | |
83 | test_dns_label_unescape_suffix_one("foobar.", "", "foobar", 20, 0, 6); | |
84 | test_dns_label_unescape_suffix_one("foo\\\\bar", "foo\\bar", "", 20, 7, 0); | |
85 | test_dns_label_unescape_suffix_one("foo.bar", "bar", "foo", 20, 3, 3); | |
86 | test_dns_label_unescape_suffix_one("foo..bar", "bar", "", 20, 3, -EINVAL); | |
87 | test_dns_label_unescape_suffix_one("foo...bar", "bar", "", 20, 3, -EINVAL); | |
88 | test_dns_label_unescape_suffix_one("foo\\.bar", "foo.bar", "", 20, 7, 0); | |
89 | test_dns_label_unescape_suffix_one("foo\\\\.bar", "bar", "foo\\", 20, 3, 4); | |
90 | test_dns_label_unescape_suffix_one("foo\\\\\\.bar", "foo\\.bar", "", 20, 8, 0); | |
91 | } | |
92 | ||
5eef597e MP |
93 | static void test_dns_label_escape_one(const char *what, size_t l, const char *expect, int ret) { |
94 | _cleanup_free_ char *t = NULL; | |
95 | int r; | |
96 | ||
97 | r = dns_label_escape(what, l, &t); | |
e735f4d4 | 98 | assert_se(r == ret); |
5eef597e MP |
99 | |
100 | if (r < 0) | |
101 | return; | |
102 | ||
103 | assert_se(streq_ptr(expect, t)); | |
104 | } | |
105 | ||
106 | static void test_dns_label_escape(void) { | |
107 | test_dns_label_escape_one("", 0, "", 0); | |
108 | test_dns_label_escape_one("hallo", 5, "hallo", 5); | |
109 | test_dns_label_escape_one("hallo", 6, NULL, -EINVAL); | |
110 | test_dns_label_escape_one("hallo hallo.foobar,waldi", 24, "hallo\\032hallo\\.foobar\\044waldi", 31); | |
111 | } | |
112 | ||
113 | static void test_dns_name_normalize_one(const char *what, const char *expect, int ret) { | |
114 | _cleanup_free_ char *t = NULL; | |
115 | int r; | |
116 | ||
117 | r = dns_name_normalize(what, &t); | |
118 | assert_se(r == ret); | |
119 | ||
120 | if (r < 0) | |
121 | return; | |
122 | ||
123 | assert_se(streq_ptr(expect, t)); | |
124 | } | |
125 | ||
126 | static void test_dns_name_normalize(void) { | |
127 | test_dns_name_normalize_one("", "", 0); | |
128 | test_dns_name_normalize_one("f", "f", 0); | |
129 | test_dns_name_normalize_one("f.waldi", "f.waldi", 0); | |
130 | test_dns_name_normalize_one("f \\032.waldi", "f\\032\\032.waldi", 0); | |
131 | test_dns_name_normalize_one("\\000", NULL, -EINVAL); | |
132 | test_dns_name_normalize_one("..", NULL, -EINVAL); | |
133 | test_dns_name_normalize_one(".foobar", NULL, -EINVAL); | |
134 | test_dns_name_normalize_one("foobar.", "foobar", 0); | |
135 | test_dns_name_normalize_one(".", "", 0); | |
136 | } | |
137 | ||
138 | static void test_dns_name_equal_one(const char *a, const char *b, int ret) { | |
139 | int r; | |
140 | ||
141 | r = dns_name_equal(a, b); | |
142 | assert_se(r == ret); | |
143 | ||
144 | r = dns_name_equal(b, a); | |
145 | assert_se(r == ret); | |
146 | } | |
147 | ||
148 | static void test_dns_name_equal(void) { | |
149 | test_dns_name_equal_one("", "", true); | |
150 | test_dns_name_equal_one("x", "x", true); | |
151 | test_dns_name_equal_one("x", "x.", true); | |
152 | test_dns_name_equal_one("abc.def", "abc.def", true); | |
153 | test_dns_name_equal_one("abc.def", "ABC.def", true); | |
154 | test_dns_name_equal_one("abc.def", "CBA.def", false); | |
155 | test_dns_name_equal_one("", "xxx", false); | |
156 | test_dns_name_equal_one("ab", "a", false); | |
157 | test_dns_name_equal_one("\\000", "xxxx", -EINVAL); | |
158 | test_dns_name_equal_one(".", "", true); | |
159 | test_dns_name_equal_one(".", ".", true); | |
160 | test_dns_name_equal_one("..", "..", -EINVAL); | |
161 | } | |
162 | ||
7035cd9e MP |
163 | static void test_dns_name_between_one(const char *a, const char *b, const char *c, int ret) { |
164 | int r; | |
165 | ||
166 | r = dns_name_between(a, b, c); | |
167 | assert_se(r == ret); | |
168 | ||
169 | r = dns_name_between(c, b, a); | |
170 | if (ret >= 0) | |
171 | assert_se(r == 0); | |
172 | else | |
173 | assert_se(r == ret); | |
174 | } | |
175 | ||
176 | static void test_dns_name_between(void) { | |
177 | /* see https://tools.ietf.org/html/rfc4034#section-6.1 | |
178 | Note that we use "\033.z.example" in stead of "\001.z.example" as we | |
179 | consider the latter invalid */ | |
180 | test_dns_name_between_one("example", "a.example", "yljkjljk.a.example", true); | |
181 | test_dns_name_between_one("a.example", "yljkjljk.a.example", "Z.a.example", true); | |
182 | test_dns_name_between_one("yljkjljk.a.example", "Z.a.example", "zABC.a.EXAMPLE", true); | |
183 | test_dns_name_between_one("Z.a.example", "zABC.a.EXAMPLE", "z.example", true); | |
184 | test_dns_name_between_one("zABC.a.EXAMPLE", "z.example", "\\033.z.example", true); | |
185 | test_dns_name_between_one("z.example", "\\033.z.example", "*.z.example", true); | |
186 | test_dns_name_between_one("\\033.z.example", "*.z.example", "\\200.z.example", true); | |
187 | test_dns_name_between_one("*.z.example", "\\200.z.example", "example", true); | |
188 | test_dns_name_between_one("\\200.z.example", "example", "a.example", true); | |
189 | ||
190 | test_dns_name_between_one("example", "a.example", "example", -EINVAL); | |
191 | test_dns_name_between_one("example", "example", "yljkjljk.a.example", false); | |
192 | test_dns_name_between_one("example", "yljkjljk.a.example", "yljkjljk.a.example", false); | |
193 | } | |
194 | ||
5eef597e MP |
195 | static void test_dns_name_endswith_one(const char *a, const char *b, int ret) { |
196 | assert_se(dns_name_endswith(a, b) == ret); | |
197 | } | |
198 | ||
199 | static void test_dns_name_endswith(void) { | |
200 | test_dns_name_endswith_one("", "", true); | |
201 | test_dns_name_endswith_one("", "xxx", false); | |
202 | test_dns_name_endswith_one("xxx", "", true); | |
203 | test_dns_name_endswith_one("x", "x", true); | |
204 | test_dns_name_endswith_one("x", "y", false); | |
205 | test_dns_name_endswith_one("x.y", "y", true); | |
206 | test_dns_name_endswith_one("x.y", "Y", true); | |
207 | test_dns_name_endswith_one("x.y", "x", false); | |
208 | test_dns_name_endswith_one("x.y.z", "Z", true); | |
209 | test_dns_name_endswith_one("x.y.z", "y.Z", true); | |
210 | test_dns_name_endswith_one("x.y.z", "x.y.Z", true); | |
211 | test_dns_name_endswith_one("x.y.z", "waldo", false); | |
212 | test_dns_name_endswith_one("x.y.z.u.v.w", "y.z", false); | |
213 | test_dns_name_endswith_one("x.y.z.u.v.w", "u.v.w", true); | |
214 | test_dns_name_endswith_one("x.y\001.z", "waldo", -EINVAL); | |
215 | } | |
216 | ||
217 | static void test_dns_name_root(void) { | |
218 | assert_se(dns_name_root("") == true); | |
219 | assert_se(dns_name_root(".") == true); | |
220 | assert_se(dns_name_root("xxx") == false); | |
221 | assert_se(dns_name_root("xxx.") == false); | |
222 | assert_se(dns_name_root("..") == -EINVAL); | |
223 | } | |
224 | ||
225 | static void test_dns_name_single_label(void) { | |
226 | assert_se(dns_name_single_label("") == false); | |
227 | assert_se(dns_name_single_label(".") == false); | |
228 | assert_se(dns_name_single_label("..") == -EINVAL); | |
229 | assert_se(dns_name_single_label("x") == true); | |
230 | assert_se(dns_name_single_label("x.") == true); | |
231 | assert_se(dns_name_single_label("xx.yy") == false); | |
232 | } | |
233 | ||
234 | static void test_dns_name_reverse_one(const char *address, const char *name) { | |
235 | _cleanup_free_ char *p = NULL; | |
e3bff60a | 236 | union in_addr_union a, b = {}; |
5eef597e MP |
237 | int familya, familyb; |
238 | ||
239 | assert_se(in_addr_from_string_auto(address, &familya, &a) >= 0); | |
240 | assert_se(dns_name_reverse(familya, &a, &p) >= 0); | |
241 | assert_se(streq(p, name)); | |
242 | assert_se(dns_name_address(p, &familyb, &b) > 0); | |
243 | assert_se(familya == familyb); | |
244 | assert_se(in_addr_equal(familya, &a, &b)); | |
245 | } | |
246 | ||
247 | static void test_dns_name_reverse(void) { | |
248 | test_dns_name_reverse_one("47.11.8.15", "15.8.11.47.in-addr.arpa"); | |
249 | 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"); | |
7035cd9e MP |
250 | test_dns_name_reverse_one("127.0.0.1", "1.0.0.127.in-addr.arpa"); |
251 | 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"); | |
5eef597e MP |
252 | } |
253 | ||
254 | int main(int argc, char *argv[]) { | |
255 | ||
256 | test_dns_label_unescape(); | |
7035cd9e | 257 | test_dns_label_unescape_suffix(); |
5eef597e MP |
258 | test_dns_label_escape(); |
259 | test_dns_name_normalize(); | |
260 | test_dns_name_equal(); | |
261 | test_dns_name_endswith(); | |
7035cd9e | 262 | test_dns_name_between(); |
5eef597e MP |
263 | test_dns_name_root(); |
264 | test_dns_name_single_label(); | |
265 | test_dns_name_reverse(); | |
266 | ||
267 | return 0; | |
268 | } |