Line data Source code
1 : /* SPDX-License-Identifier: LGPL-2.1+ */
2 : /***
3 : Copyright © 2017 Intel Corporation. All rights reserved.
4 : ***/
5 :
6 : #include <netinet/icmp6.h>
7 : #include <arpa/inet.h>
8 : #include <unistd.h>
9 :
10 : #include "sd-radv.h"
11 :
12 : #include "alloc-util.h"
13 : #include "hexdecoct.h"
14 : #include "icmp6-util.h"
15 : #include "socket-util.h"
16 : #include "strv.h"
17 : #include "tests.h"
18 :
19 : static struct ether_addr mac_addr = {
20 : .ether_addr_octet = { 0x78, 0x2b, 0xcb, 0xb3, 0x6d, 0x53 }
21 : };
22 :
23 : static uint8_t advertisement[] = {
24 : /* ICMPv6 Router Advertisement, no checksum */
25 : 0x86, 0x00, 0x00, 0x00, 0x40, 0xc0, 0x00, 0xb4,
26 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
27 : /* Source Link Layer Address Option */
28 : 0x01, 0x01, 0x78, 0x2b, 0xcb, 0xb3, 0x6d, 0x53,
29 : /* Prefix Information Option */
30 : 0x03, 0x04, 0x40, 0xc0, 0x00, 0x00, 0x01, 0xf4,
31 : 0x00, 0x00, 0x01, 0xb8, 0x00, 0x00, 0x00, 0x00,
32 : 0x20, 0x01, 0x0d, 0xb8, 0xde, 0xad, 0xbe, 0xef,
33 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
34 : /* Prefix Information Option */
35 : 0x03, 0x04, 0x40, 0xc0, 0x00, 0x27, 0x8d, 0x00,
36 : 0x00, 0x09, 0x3a, 0x80, 0x00, 0x00, 0x00, 0x00,
37 : 0x20, 0x01, 0x0d, 0xb8, 0x0b, 0x16, 0xd0, 0x0d,
38 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
39 : /* Prefix Information Option */
40 : 0x03, 0x04, 0x30, 0xc0, 0x00, 0x27, 0x8d, 0x00,
41 : 0x00, 0x09, 0x3a, 0x80, 0x00, 0x00, 0x00, 0x00,
42 : 0x20, 0x01, 0x0d, 0xb8, 0xc0, 0x01, 0x0d, 0xad,
43 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
44 : /* Recursive DNS Server Option */
45 : 0x19, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3c,
46 : 0x20, 0x01, 0x0d, 0xb8, 0xde, 0xad, 0xbe, 0xef,
47 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
48 : /* DNS Search List Option */
49 : 0x1f, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3c,
50 : 0x03, 0x6c, 0x61, 0x62, 0x05, 0x69, 0x6e, 0x74,
51 : 0x72, 0x61, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
52 : };
53 :
54 : static sd_event_source *test_hangcheck;
55 : static bool test_stopped;
56 : static int test_fd[2];
57 : static sd_event_source *recv_router_advertisement;
58 : static struct {
59 : struct in6_addr address;
60 : unsigned char prefixlen;
61 : uint32_t valid;
62 : uint32_t preferred;
63 : bool successful;
64 : } prefix[] = {
65 : { { { { 0x20, 0x01, 0x0d, 0xb8, 0xde, 0xad, 0xbe, 0xef,
66 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } } }, 64,
67 : 500, 440, true },
68 : { { { { 0x20, 0x01, 0x0d, 0xb8, 0x0b, 0x16, 0xd0, 0x0d,
69 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } } }, 64,
70 : /* indicate default valid and preferred lifetimes for the test code */
71 : 0, 0, true },
72 : { { { { 0x20, 0x01, 0x0d, 0xb8, 0x0b, 0x16, 0xd0, 0x0d,
73 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } } }, 58,
74 : 0, 0,
75 : /* indicate that this prefix already exists */
76 : false },
77 : { { { { 0x20, 0x01, 0x0d, 0xb8, 0x0b, 0x16, 0xd0, 0x0d,
78 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } } }, 120,
79 : 0, 0,
80 : /* indicate that this prefix already exists */
81 : false },
82 : { { { { 0x20, 0x01, 0x0d, 0xb8, 0x0b, 0x16, 0xd0, 0x0d,
83 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } } }, 12,
84 : 0, 0,
85 : /* indicate that this prefix already exists */
86 : false },
87 : { { { { 0x20, 0x01, 0x0d, 0xb8, 0xc0, 0x01, 0x0d, 0xad,
88 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } } }, 48,
89 : 0, 0, true },
90 : { { { { 0x20, 0x01, 0x0d, 0xb8, 0xc0, 0x01, 0x0d, 0xad,
91 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } } }, 60,
92 : 0, 0,
93 : /* indicate that this prefix already exists */
94 : false },
95 : };
96 :
97 : static const struct in6_addr test_rdnss = { { { 0x20, 0x01, 0x0d, 0xb8,
98 : 0xde, 0xad, 0xbe, 0xef,
99 : 0x00, 0x00, 0x00, 0x00,
100 : 0x00, 0x00, 0x00, 0x01 } } };
101 : static const char *test_dnssl[] = { "lab.intra",
102 : NULL };
103 :
104 0 : static int test_rs_hangcheck(sd_event_source *s, uint64_t usec,
105 : void *userdata) {
106 0 : assert_se(false);
107 :
108 : return 0;
109 : }
110 :
111 1 : static void test_radv_prefix(void) {
112 : sd_radv_prefix *p;
113 :
114 1 : printf("* %s\n", __FUNCTION__);
115 :
116 1 : assert_se(sd_radv_prefix_new(&p) >= 0);
117 :
118 1 : assert_se(sd_radv_prefix_set_onlink(NULL, true) < 0);
119 1 : assert_se(sd_radv_prefix_set_onlink(p, true) >= 0);
120 1 : assert_se(sd_radv_prefix_set_onlink(p, false) >= 0);
121 :
122 1 : assert_se(sd_radv_prefix_set_address_autoconfiguration(NULL, true) < 0);
123 1 : assert_se(sd_radv_prefix_set_address_autoconfiguration(p, true) >= 0);
124 1 : assert_se(sd_radv_prefix_set_address_autoconfiguration(p, false) >= 0);
125 :
126 1 : assert_se(sd_radv_prefix_set_valid_lifetime(NULL, true) < 0);
127 1 : assert_se(sd_radv_prefix_set_valid_lifetime(p, ~0) >= 0);
128 1 : assert_se(sd_radv_prefix_set_valid_lifetime(p, 42) >= 0);
129 1 : assert_se(sd_radv_prefix_set_valid_lifetime(p, 0) >= 0);
130 :
131 1 : assert_se(sd_radv_prefix_set_preferred_lifetime(NULL, true) < 0);
132 1 : assert_se(sd_radv_prefix_set_preferred_lifetime(p, ~0) >= 0);
133 1 : assert_se(sd_radv_prefix_set_preferred_lifetime(p, 42) >= 0);
134 1 : assert_se(sd_radv_prefix_set_preferred_lifetime(p, 0) >= 0);
135 :
136 1 : assert_se(sd_radv_prefix_set_prefix(NULL, NULL, 0) < 0);
137 1 : assert_se(sd_radv_prefix_set_prefix(p, NULL, 0) < 0);
138 :
139 1 : assert_se(sd_radv_prefix_set_prefix(p, &prefix[0].address, 64) >= 0);
140 1 : assert_se(sd_radv_prefix_set_prefix(p, &prefix[0].address, 0) < 0);
141 1 : assert_se(sd_radv_prefix_set_prefix(p, &prefix[0].address, 1) < 0);
142 1 : assert_se(sd_radv_prefix_set_prefix(p, &prefix[0].address, 2) < 0);
143 1 : assert_se(sd_radv_prefix_set_prefix(p, &prefix[0].address, 3) >= 0);
144 1 : assert_se(sd_radv_prefix_set_prefix(p, &prefix[0].address, 125) >= 0);
145 1 : assert_se(sd_radv_prefix_set_prefix(p, &prefix[0].address, 128) >= 0);
146 1 : assert_se(sd_radv_prefix_set_prefix(p, &prefix[0].address, 129) < 0);
147 1 : assert_se(sd_radv_prefix_set_prefix(p, &prefix[0].address, 255) < 0);
148 :
149 1 : p = sd_radv_prefix_unref(p);
150 1 : assert_se(!p);
151 1 : }
152 :
153 1 : static void test_radv(void) {
154 : sd_radv *ra;
155 :
156 1 : printf("* %s\n", __FUNCTION__);
157 :
158 1 : assert_se(sd_radv_new(&ra) >= 0);
159 1 : assert_se(ra);
160 :
161 1 : assert_se(sd_radv_set_ifindex(NULL, 0) < 0);
162 1 : assert_se(sd_radv_set_ifindex(ra, 0) >= 0);
163 1 : assert_se(sd_radv_set_ifindex(ra, -1) >= 0);
164 1 : assert_se(sd_radv_set_ifindex(ra, -2) < 0);
165 1 : assert_se(sd_radv_set_ifindex(ra, 42) >= 0);
166 :
167 1 : assert_se(sd_radv_set_mac(NULL, NULL) < 0);
168 1 : assert_se(sd_radv_set_mac(ra, NULL) >= 0);
169 1 : assert_se(sd_radv_set_mac(ra, &mac_addr) >= 0);
170 :
171 1 : assert_se(sd_radv_set_mtu(NULL, 0) < 0);
172 1 : assert_se(sd_radv_set_mtu(ra, 0) < 0);
173 1 : assert_se(sd_radv_set_mtu(ra, 1279) < 0);
174 1 : assert_se(sd_radv_set_mtu(ra, 1280) >= 0);
175 1 : assert_se(sd_radv_set_mtu(ra, ~0) >= 0);
176 :
177 1 : assert_se(sd_radv_set_hop_limit(NULL, 0) < 0);
178 1 : assert_se(sd_radv_set_hop_limit(ra, 0) >= 0);
179 1 : assert_se(sd_radv_set_hop_limit(ra, ~0) >= 0);
180 :
181 1 : assert_se(sd_radv_set_router_lifetime(NULL, 0) < 0);
182 1 : assert_se(sd_radv_set_router_lifetime(ra, 0) >= 0);
183 1 : assert_se(sd_radv_set_router_lifetime(ra, ~0) >= 0);
184 :
185 1 : assert_se(sd_radv_set_preference(NULL, 0) < 0);
186 1 : assert_se(sd_radv_set_preference(ra, SD_NDISC_PREFERENCE_LOW) >= 0);
187 1 : assert_se(sd_radv_set_preference(ra, SD_NDISC_PREFERENCE_MEDIUM) >= 0);
188 1 : assert_se(sd_radv_set_preference(ra, SD_NDISC_PREFERENCE_HIGH) >= 0);
189 1 : assert_se(sd_radv_set_preference(ra, ~0) < 0);
190 :
191 1 : assert_se(sd_radv_set_preference(ra, SD_NDISC_PREFERENCE_HIGH) >= 0);
192 1 : assert_se(sd_radv_set_router_lifetime(ra, 42000) >= 0);
193 1 : assert_se(sd_radv_set_router_lifetime(ra, 0) < 0);
194 1 : assert_se(sd_radv_set_preference(ra, SD_NDISC_PREFERENCE_MEDIUM) >= 0);
195 1 : assert_se(sd_radv_set_router_lifetime(ra, 0) >= 0);
196 :
197 1 : assert_se(sd_radv_set_managed_information(NULL, true) < 0);
198 1 : assert_se(sd_radv_set_managed_information(ra, true) >= 0);
199 1 : assert_se(sd_radv_set_managed_information(ra, false) >= 0);
200 :
201 1 : assert_se(sd_radv_set_other_information(NULL, true) < 0);
202 1 : assert_se(sd_radv_set_other_information(ra, true) >= 0);
203 1 : assert_se(sd_radv_set_other_information(ra, false) >= 0);
204 :
205 1 : assert_se(sd_radv_set_rdnss(NULL, 0, NULL, 0) < 0);
206 1 : assert_se(sd_radv_set_rdnss(ra, 0, NULL, 0) >= 0);
207 1 : assert_se(sd_radv_set_rdnss(ra, 0, NULL, 128) < 0);
208 1 : assert_se(sd_radv_set_rdnss(ra, 600, &test_rdnss, 0) >= 0);
209 1 : assert_se(sd_radv_set_rdnss(ra, 600, &test_rdnss, 1) >= 0);
210 1 : assert_se(sd_radv_set_rdnss(ra, 0, &test_rdnss, 1) >= 0);
211 1 : assert_se(sd_radv_set_rdnss(ra, 0, NULL, 0) >= 0);
212 :
213 1 : assert_se(sd_radv_set_dnssl(ra, 0, NULL) >= 0);
214 1 : assert_se(sd_radv_set_dnssl(ra, 600, NULL) >= 0);
215 1 : assert_se(sd_radv_set_dnssl(ra, 0, (char **)test_dnssl) >= 0);
216 1 : assert_se(sd_radv_set_dnssl(ra, 600, (char **)test_dnssl) >= 0);
217 :
218 1 : ra = sd_radv_unref(ra);
219 1 : assert_se(!ra);
220 1 : }
221 :
222 0 : int icmp6_bind_router_solicitation(int index) {
223 0 : return -ENOSYS;
224 : }
225 :
226 1 : int icmp6_bind_router_advertisement(int index) {
227 1 : assert_se(index == 42);
228 :
229 1 : return test_fd[1];
230 : }
231 :
232 0 : int icmp6_send_router_solicitation(int s, const struct ether_addr *ether_addr) {
233 :
234 0 : return 0;
235 : }
236 :
237 0 : int icmp6_receive(int fd, void *iov_base, size_t iov_len,
238 : struct in6_addr *dst, triple_timestamp *timestamp) {
239 0 : assert_se(read (fd, iov_base, iov_len) == (ssize_t)iov_len);
240 :
241 0 : if (timestamp)
242 0 : triple_timestamp_get(timestamp);
243 :
244 0 : return 0;
245 : }
246 :
247 2 : static int radv_recv(sd_event_source *s, int fd, uint32_t revents, void *userdata) {
248 2 : sd_radv *ra = userdata;
249 : unsigned char buf[168];
250 : size_t i;
251 :
252 2 : assert_se(read(test_fd[0], &buf, sizeof(buf)) == sizeof(buf));
253 :
254 : /* router lifetime must be zero when test is stopped */
255 2 : if (test_stopped) {
256 1 : advertisement[6] = 0x00;
257 1 : advertisement[7] = 0x00;
258 : }
259 :
260 2 : printf ("Received Router Advertisement with lifetime %u\n",
261 2 : (advertisement[6] << 8) + advertisement[7]);
262 :
263 : /* test only up to buf size, rest is not yet implemented */
264 338 : for (i = 0; i < sizeof(buf); i++) {
265 336 : if (!(i % 8))
266 42 : printf("%3zd: ", i);
267 :
268 336 : printf("0x%02x", buf[i]);
269 :
270 336 : assert_se(buf[i] == advertisement[i]);
271 :
272 336 : if ((i + 1) % 8)
273 294 : printf(", ");
274 : else
275 42 : printf("\n");
276 : }
277 :
278 2 : if (test_stopped) {
279 : sd_event *e;
280 :
281 1 : e = sd_radv_get_event(ra);
282 1 : sd_event_exit(e, 0);
283 :
284 1 : return 0;
285 : }
286 :
287 1 : assert_se(sd_radv_stop(ra) >= 0);
288 1 : test_stopped = true;
289 :
290 1 : return 0;
291 : }
292 :
293 1 : static void test_ra(void) {
294 : sd_event *e;
295 : sd_radv *ra;
296 1 : usec_t time_now = now(clock_boottime_or_monotonic());
297 : unsigned i;
298 :
299 1 : printf("* %s\n", __FUNCTION__);
300 :
301 1 : assert_se(socketpair(AF_UNIX, SOCK_SEQPACKET | SOCK_CLOEXEC | SOCK_NONBLOCK, 0, test_fd) >= 0);
302 :
303 1 : assert_se(sd_event_new(&e) >= 0);
304 :
305 1 : assert_se(sd_radv_new(&ra) >= 0);
306 1 : assert_se(ra);
307 :
308 1 : assert_se(sd_radv_attach_event(ra, e, 0) >= 0);
309 :
310 1 : assert_se(sd_radv_set_ifindex(ra, 42) >= 0);
311 1 : assert_se(sd_radv_set_mac(ra, &mac_addr) >= 0);
312 1 : assert_se(sd_radv_set_router_lifetime(ra, 180) >= 0);
313 1 : assert_se(sd_radv_set_hop_limit(ra, 64) >= 0);
314 1 : assert_se(sd_radv_set_managed_information(ra, true) >= 0);
315 1 : assert_se(sd_radv_set_other_information(ra, true) >= 0);
316 1 : assert_se(sd_radv_set_rdnss(ra, 60, &test_rdnss, 1) >= 0);
317 1 : assert_se(sd_radv_set_dnssl(ra, 60, (char **)test_dnssl) >= 0);
318 :
319 8 : for (i = 0; i < ELEMENTSOF(prefix); i++) {
320 : sd_radv_prefix *p;
321 :
322 7 : printf("Test prefix %u\n", i);
323 7 : assert_se(sd_radv_prefix_new(&p) >= 0);
324 :
325 7 : assert_se(sd_radv_prefix_set_prefix(p, &prefix[i].address,
326 : prefix[i].prefixlen) >= 0);
327 7 : if (prefix[i].valid)
328 1 : assert_se(sd_radv_prefix_set_valid_lifetime(p, prefix[i].valid) >= 0);
329 7 : if (prefix[i].preferred)
330 1 : assert_se(sd_radv_prefix_set_preferred_lifetime(p, prefix[i].preferred) >= 0);
331 :
332 7 : assert_se((sd_radv_add_prefix(ra, p, false) >= 0) == prefix[i].successful);
333 7 : assert_se(sd_radv_add_prefix(ra, p, false) < 0);
334 :
335 7 : p = sd_radv_prefix_unref(p);
336 7 : assert_se(!p);
337 : }
338 :
339 1 : assert_se(sd_event_add_io(e, &recv_router_advertisement, test_fd[0],
340 : EPOLLIN, radv_recv, ra) >= 0);
341 :
342 1 : assert_se(sd_event_add_time(e, &test_hangcheck, clock_boottime_or_monotonic(),
343 : time_now + 2 *USEC_PER_SEC, 0,
344 : test_rs_hangcheck, NULL) >= 0);
345 :
346 1 : assert_se(sd_radv_start(ra) >= 0);
347 :
348 1 : sd_event_loop(e);
349 :
350 1 : test_hangcheck = sd_event_source_unref(test_hangcheck);
351 :
352 1 : ra = sd_radv_unref(ra);
353 1 : assert_se(!ra);
354 :
355 1 : close(test_fd[0]);
356 :
357 1 : sd_event_unref(e);
358 1 : }
359 :
360 1 : int main(int argc, char *argv[]) {
361 :
362 1 : test_setup_logging(LOG_DEBUG);
363 :
364 1 : test_radv_prefix();
365 1 : test_radv();
366 1 : test_ra();
367 :
368 1 : printf("* done\n");
369 1 : return 0;
370 : }
|
