Line data Source code
1 : /* SPDX-License-Identifier: LGPL-2.1+ */
2 : /***
3 : Copyright © 2013 Intel Corporation. All rights reserved.
4 : ***/
5 :
6 : #include <errno.h>
7 : #include <stdio.h>
8 : #include <sys/socket.h>
9 : #include <unistd.h>
10 : #include <net/if.h>
11 :
12 : #include "sd-dhcp-client.h"
13 : #include "sd-event.h"
14 :
15 : #include "alloc-util.h"
16 : #include "dhcp-identifier.h"
17 : #include "dhcp-internal.h"
18 : #include "dhcp-protocol.h"
19 : #include "fd-util.h"
20 : #include "random-util.h"
21 : #include "tests.h"
22 : #include "util.h"
23 :
24 : static uint8_t mac_addr[] = {'A', 'B', 'C', '1', '2', '3'};
25 :
26 : typedef int (*test_callback_recv_t)(size_t size, DHCPMessage *dhcp);
27 :
28 : static bool verbose = true;
29 : static int test_fd[2];
30 : static test_callback_recv_t callback_recv;
31 : static be32_t xid;
32 : static sd_event_source *test_hangcheck;
33 :
34 0 : static int test_dhcp_hangcheck(sd_event_source *s, uint64_t usec, void *userdata) {
35 0 : assert_not_reached("Test case should have completed in 2 seconds");
36 :
37 : return 0;
38 : }
39 :
40 1 : static void test_request_basic(sd_event *e) {
41 : int r;
42 :
43 : sd_dhcp_client *client;
44 :
45 1 : if (verbose)
46 1 : printf("* %s\n", __FUNCTION__);
47 :
48 : /* Initialize client without Anonymize settings. */
49 1 : r = sd_dhcp_client_new(&client, false);
50 :
51 1 : assert_se(r >= 0);
52 1 : assert_se(client);
53 :
54 1 : r = sd_dhcp_client_attach_event(client, e, 0);
55 1 : assert_se(r >= 0);
56 :
57 1 : assert_se(sd_dhcp_client_set_request_option(NULL, 0) == -EINVAL);
58 1 : assert_se(sd_dhcp_client_set_request_address(NULL, NULL) == -EINVAL);
59 1 : assert_se(sd_dhcp_client_set_ifindex(NULL, 0) == -EINVAL);
60 :
61 1 : assert_se(sd_dhcp_client_set_ifindex(client, 15) == 0);
62 1 : assert_se(sd_dhcp_client_set_ifindex(client, -42) == -EINVAL);
63 1 : assert_se(sd_dhcp_client_set_ifindex(client, -1) == -EINVAL);
64 1 : assert_se(sd_dhcp_client_set_ifindex(client, 0) == -EINVAL);
65 1 : assert_se(sd_dhcp_client_set_ifindex(client, 1) == 0);
66 :
67 1 : assert_se(sd_dhcp_client_set_hostname(client, "host") == 1);
68 1 : assert_se(sd_dhcp_client_set_hostname(client, "host.domain") == 1);
69 1 : assert_se(sd_dhcp_client_set_hostname(client, NULL) == 1);
70 1 : assert_se(sd_dhcp_client_set_hostname(client, "~host") == -EINVAL);
71 1 : assert_se(sd_dhcp_client_set_hostname(client, "~host.domain") == -EINVAL);
72 :
73 1 : assert_se(sd_dhcp_client_set_request_option(client,
74 : SD_DHCP_OPTION_SUBNET_MASK) == -EEXIST);
75 1 : assert_se(sd_dhcp_client_set_request_option(client,
76 : SD_DHCP_OPTION_ROUTER) == -EEXIST);
77 : /* This PRL option is not set when using Anonymize, but in this test
78 : * Anonymize settings are not being used. */
79 1 : assert_se(sd_dhcp_client_set_request_option(client,
80 : SD_DHCP_OPTION_HOST_NAME) == -EEXIST);
81 1 : assert_se(sd_dhcp_client_set_request_option(client,
82 : SD_DHCP_OPTION_DOMAIN_NAME) == -EEXIST);
83 1 : assert_se(sd_dhcp_client_set_request_option(client,
84 : SD_DHCP_OPTION_DOMAIN_NAME_SERVER) == -EEXIST);
85 :
86 1 : assert_se(sd_dhcp_client_set_request_option(client,
87 : SD_DHCP_OPTION_PAD) == -EINVAL);
88 1 : assert_se(sd_dhcp_client_set_request_option(client,
89 : SD_DHCP_OPTION_END) == -EINVAL);
90 1 : assert_se(sd_dhcp_client_set_request_option(client,
91 : SD_DHCP_OPTION_MESSAGE_TYPE) == -EINVAL);
92 1 : assert_se(sd_dhcp_client_set_request_option(client,
93 : SD_DHCP_OPTION_OVERLOAD) == -EINVAL);
94 1 : assert_se(sd_dhcp_client_set_request_option(client,
95 : SD_DHCP_OPTION_PARAMETER_REQUEST_LIST)
96 : == -EINVAL);
97 :
98 : /* RFC7844: option 33 (SD_DHCP_OPTION_STATIC_ROUTE) is set in the
99 : * default PRL when using Anonymize, so it is changed to other option
100 : * that is not set by default, to check that it was set successfully.
101 : * Options not set by default (using or not anonymize) are option 17
102 : * (SD_DHCP_OPTION_ROOT_PATH) and 42 (SD_DHCP_OPTION_NTP_SERVER) */
103 1 : assert_se(sd_dhcp_client_set_request_option(client, 17) == 0);
104 1 : assert_se(sd_dhcp_client_set_request_option(client, 17) == -EEXIST);
105 1 : assert_se(sd_dhcp_client_set_request_option(client, 42) == 0);
106 1 : assert_se(sd_dhcp_client_set_request_option(client, 17) == -EEXIST);
107 :
108 1 : sd_dhcp_client_unref(client);
109 1 : }
110 :
111 1 : static void test_request_anonymize(sd_event *e) {
112 : int r;
113 :
114 : sd_dhcp_client *client;
115 :
116 1 : if (verbose)
117 1 : printf("* %s\n", __FUNCTION__);
118 :
119 : /* Initialize client with Anonymize settings. */
120 1 : r = sd_dhcp_client_new(&client, true);
121 :
122 1 : assert_se(r >= 0);
123 1 : assert_se(client);
124 :
125 1 : r = sd_dhcp_client_attach_event(client, e, 0);
126 1 : assert_se(r >= 0);
127 :
128 1 : assert_se(sd_dhcp_client_set_request_option(client,
129 : SD_DHCP_OPTION_NETBIOS_NAMESERVER) == -EEXIST);
130 : /* This PRL option is not set when using Anonymize */
131 1 : assert_se(sd_dhcp_client_set_request_option(client,
132 : SD_DHCP_OPTION_HOST_NAME) == 0);
133 1 : assert_se(sd_dhcp_client_set_request_option(client,
134 : SD_DHCP_OPTION_PARAMETER_REQUEST_LIST)
135 : == -EINVAL);
136 :
137 : /* RFC7844: option 101 (SD_DHCP_OPTION_NEW_TZDB_TIMEZONE) is not set in the
138 : * default PRL when using Anonymize, */
139 1 : assert_se(sd_dhcp_client_set_request_option(client, 101) == 0);
140 1 : assert_se(sd_dhcp_client_set_request_option(client, 101) == -EEXIST);
141 :
142 1 : sd_dhcp_client_unref(client);
143 1 : }
144 :
145 1 : static void test_checksum(void) {
146 1 : uint8_t buf[20] = {
147 : 0x45, 0x00, 0x02, 0x40, 0x00, 0x00, 0x00, 0x00,
148 : 0x40, 0x11, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
149 : 0xff, 0xff, 0xff, 0xff
150 : };
151 :
152 1 : if (verbose)
153 1 : printf("* %s\n", __FUNCTION__);
154 :
155 1 : assert_se(dhcp_packet_checksum((uint8_t*)&buf, 20) == be16toh(0x78ae));
156 1 : }
157 :
158 2 : static void test_dhcp_identifier_set_iaid(void) {
159 : uint32_t iaid_legacy;
160 : be32_t iaid;
161 : int ifindex;
162 :
163 1 : for (;;) {
164 : char ifname[IFNAMSIZ];
165 :
166 : /* try to find an ifindex which does not exist. I causes dhcp_identifier_set_iaid()
167 : * to hash the MAC address. */
168 2 : pseudo_random_bytes(&ifindex, sizeof(ifindex));
169 2 : if (ifindex > 0 && !if_indextoname(ifindex, ifname))
170 1 : break;
171 : }
172 :
173 1 : assert_se(dhcp_identifier_set_iaid(ifindex, mac_addr, sizeof(mac_addr), true, &iaid_legacy) >= 0);
174 1 : assert_se(dhcp_identifier_set_iaid(ifindex, mac_addr, sizeof(mac_addr), false, &iaid) >= 0);
175 :
176 : /* we expect, that the MAC address was hashed. The legacy value is in native
177 : * endianness. */
178 1 : assert_se(iaid_legacy == 0x8dde4ba8u);
179 1 : assert_se(iaid == htole32(0x8dde4ba8u));
180 : #if __BYTE_ORDER == __LITTLE_ENDIAN
181 1 : assert_se(iaid == iaid_legacy);
182 : #else
183 : assert_se(iaid == __bswap_32(iaid_legacy));
184 : #endif
185 1 : }
186 :
187 6 : static int check_options(uint8_t code, uint8_t len, const void *option, void *userdata) {
188 6 : switch(code) {
189 2 : case SD_DHCP_OPTION_CLIENT_IDENTIFIER:
190 : {
191 : uint32_t iaid;
192 : struct duid duid;
193 : size_t duid_len;
194 :
195 2 : assert_se(dhcp_identifier_set_duid_en(&duid, &duid_len) >= 0);
196 2 : assert_se(dhcp_identifier_set_iaid(42, mac_addr, ETH_ALEN, true, &iaid) >= 0);
197 :
198 2 : assert_se(len == sizeof(uint8_t) + sizeof(uint32_t) + duid_len);
199 2 : assert_se(len == 19);
200 2 : assert_se(((uint8_t*) option)[0] == 0xff);
201 :
202 2 : assert_se(memcmp((uint8_t*) option + 1, &iaid, sizeof(iaid)) == 0);
203 2 : assert_se(memcmp((uint8_t*) option + 5, &duid, duid_len) == 0);
204 2 : break;
205 : }
206 :
207 4 : default:
208 4 : break;
209 : }
210 :
211 6 : return 0;
212 : }
213 :
214 2 : int dhcp_network_send_raw_socket(int s, const union sockaddr_union *link, const void *packet, size_t len) {
215 : size_t size;
216 2 : _cleanup_free_ DHCPPacket *discover;
217 : uint16_t ip_check, udp_check;
218 :
219 2 : assert_se(s >= 0);
220 2 : assert_se(packet);
221 :
222 2 : size = sizeof(DHCPPacket);
223 2 : assert_se(len > size);
224 :
225 2 : discover = memdup(packet, len);
226 :
227 2 : assert_se(discover->ip.ttl == IPDEFTTL);
228 2 : assert_se(discover->ip.protocol == IPPROTO_UDP);
229 2 : assert_se(discover->ip.saddr == INADDR_ANY);
230 2 : assert_se(discover->ip.daddr == INADDR_BROADCAST);
231 2 : assert_se(discover->udp.source == be16toh(DHCP_PORT_CLIENT));
232 2 : assert_se(discover->udp.dest == be16toh(DHCP_PORT_SERVER));
233 :
234 2 : ip_check = discover->ip.check;
235 :
236 2 : discover->ip.ttl = 0;
237 2 : discover->ip.check = discover->udp.len;
238 :
239 2 : udp_check = ~dhcp_packet_checksum((uint8_t*)&discover->ip.ttl, len - 8);
240 2 : assert_se(udp_check == 0xffff);
241 :
242 2 : discover->ip.ttl = IPDEFTTL;
243 2 : discover->ip.check = ip_check;
244 :
245 2 : ip_check = ~dhcp_packet_checksum((uint8_t*)&discover->ip, sizeof(discover->ip));
246 2 : assert_se(ip_check == 0xffff);
247 :
248 2 : assert_se(discover->dhcp.xid);
249 2 : assert_se(memcmp(discover->dhcp.chaddr, &mac_addr, ETH_ALEN) == 0);
250 :
251 2 : size = len - sizeof(struct iphdr) - sizeof(struct udphdr);
252 :
253 2 : assert_se(callback_recv);
254 2 : callback_recv(size, &discover->dhcp);
255 :
256 2 : return 575;
257 : }
258 :
259 2 : int dhcp_network_bind_raw_socket(
260 : int index,
261 : union sockaddr_union *link,
262 : uint32_t id,
263 : const uint8_t *addr, size_t addr_len,
264 : uint16_t arp_type, uint16_t port) {
265 :
266 2 : if (socketpair(AF_UNIX, SOCK_STREAM | SOCK_CLOEXEC | SOCK_NONBLOCK, 0, test_fd) < 0)
267 0 : return -errno;
268 :
269 2 : return test_fd[0];
270 : }
271 :
272 0 : int dhcp_network_bind_udp_socket(int ifindex, be32_t address, uint16_t port) {
273 : int fd;
274 :
275 0 : fd = socket(AF_INET, SOCK_DGRAM | SOCK_CLOEXEC | SOCK_NONBLOCK, 0);
276 0 : if (fd < 0)
277 0 : return -errno;
278 :
279 0 : return fd;
280 : }
281 :
282 0 : int dhcp_network_send_udp_socket(int s, be32_t address, uint16_t port, const void *packet, size_t len) {
283 0 : return 0;
284 : }
285 :
286 1 : static int test_discover_message_verify(size_t size, struct DHCPMessage *dhcp) {
287 : int res;
288 :
289 1 : res = dhcp_option_parse(dhcp, size, check_options, NULL, NULL);
290 1 : assert_se(res == DHCP_DISCOVER);
291 :
292 1 : if (verbose)
293 1 : printf(" recv DHCP Discover 0x%08x\n", be32toh(dhcp->xid));
294 :
295 1 : return 0;
296 : }
297 :
298 1 : static void test_discover_message(sd_event *e) {
299 : sd_dhcp_client *client;
300 : int res, r;
301 :
302 1 : if (verbose)
303 1 : printf("* %s\n", __FUNCTION__);
304 :
305 1 : r = sd_dhcp_client_new(&client, false);
306 1 : assert_se(r >= 0);
307 1 : assert_se(client);
308 :
309 1 : r = sd_dhcp_client_attach_event(client, e, 0);
310 1 : assert_se(r >= 0);
311 :
312 1 : assert_se(sd_dhcp_client_set_ifindex(client, 42) >= 0);
313 1 : assert_se(sd_dhcp_client_set_mac(client, mac_addr, ETH_ALEN, ARPHRD_ETHER) >= 0);
314 :
315 1 : assert_se(sd_dhcp_client_set_request_option(client, 248) >= 0);
316 :
317 1 : callback_recv = test_discover_message_verify;
318 :
319 1 : res = sd_dhcp_client_start(client);
320 :
321 1 : assert_se(IN_SET(res, 0, -EINPROGRESS));
322 :
323 1 : sd_event_run(e, (uint64_t) -1);
324 :
325 1 : sd_dhcp_client_stop(client);
326 1 : sd_dhcp_client_unref(client);
327 :
328 1 : test_fd[1] = safe_close(test_fd[1]);
329 :
330 1 : callback_recv = NULL;
331 1 : }
332 :
333 : static uint8_t test_addr_acq_offer[] = {
334 : 0x45, 0x10, 0x01, 0x48, 0x00, 0x00, 0x00, 0x00,
335 : 0x80, 0x11, 0xb3, 0x84, 0xc0, 0xa8, 0x02, 0x01,
336 : 0xc0, 0xa8, 0x02, 0xbf, 0x00, 0x43, 0x00, 0x44,
337 : 0x01, 0x34, 0x00, 0x00, 0x02, 0x01, 0x06, 0x00,
338 : 0x6f, 0x95, 0x2f, 0x30, 0x00, 0x00, 0x00, 0x00,
339 : 0x00, 0x00, 0x00, 0x00, 0xc0, 0xa8, 0x02, 0xbf,
340 : 0xc0, 0xa8, 0x02, 0x01, 0x00, 0x00, 0x00, 0x00,
341 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
342 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
343 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
344 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
345 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
346 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
347 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
348 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
349 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
350 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
351 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
352 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
353 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
354 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
355 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
356 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
357 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
358 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
359 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
360 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
361 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
362 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
363 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
364 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
365 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
366 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
367 : 0x63, 0x82, 0x53, 0x63, 0x35, 0x01, 0x02, 0x36,
368 : 0x04, 0xc0, 0xa8, 0x02, 0x01, 0x33, 0x04, 0x00,
369 : 0x00, 0x02, 0x58, 0x01, 0x04, 0xff, 0xff, 0xff,
370 : 0x00, 0x2a, 0x04, 0xc0, 0xa8, 0x02, 0x01, 0x0f,
371 : 0x09, 0x6c, 0x61, 0x62, 0x2e, 0x69, 0x6e, 0x74,
372 : 0x72, 0x61, 0x03, 0x04, 0xc0, 0xa8, 0x02, 0x01,
373 : 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
374 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
375 : };
376 :
377 : static uint8_t test_addr_acq_ack[] = {
378 : 0x45, 0x10, 0x01, 0x48, 0x00, 0x00, 0x00, 0x00,
379 : 0x80, 0x11, 0xb3, 0x84, 0xc0, 0xa8, 0x02, 0x01,
380 : 0xc0, 0xa8, 0x02, 0xbf, 0x00, 0x43, 0x00, 0x44,
381 : 0x01, 0x34, 0x00, 0x00, 0x02, 0x01, 0x06, 0x00,
382 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00,
383 : 0x00, 0x00, 0x00, 0x00, 0xc0, 0xa8, 0x02, 0xbf,
384 : 0xc0, 0xa8, 0x02, 0x01, 0x00, 0x00, 0x00, 0x00,
385 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
386 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
387 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
388 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
389 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
390 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
391 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
392 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
393 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
394 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
395 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
396 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
397 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
398 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
399 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
400 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
401 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
402 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
403 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
404 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
405 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
406 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
407 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
408 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
409 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
410 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
411 : 0x63, 0x82, 0x53, 0x63, 0x35, 0x01, 0x05, 0x36,
412 : 0x04, 0xc0, 0xa8, 0x02, 0x01, 0x33, 0x04, 0x00,
413 : 0x00, 0x02, 0x58, 0x01, 0x04, 0xff, 0xff, 0xff,
414 : 0x00, 0x2a, 0x04, 0xc0, 0xa8, 0x02, 0x01, 0x0f,
415 : 0x09, 0x6c, 0x61, 0x62, 0x2e, 0x69, 0x6e, 0x74,
416 : 0x72, 0x61, 0x03, 0x04, 0xc0, 0xa8, 0x02, 0x01,
417 : 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
418 : 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
419 : };
420 :
421 1 : static int test_addr_acq_acquired(sd_dhcp_client *client, int event,
422 : void *userdata) {
423 1 : sd_event *e = userdata;
424 : sd_dhcp_lease *lease;
425 : struct in_addr addr;
426 : const struct in_addr *addrs;
427 :
428 1 : assert_se(client);
429 1 : assert_se(IN_SET(event, SD_DHCP_CLIENT_EVENT_IP_ACQUIRE, SD_DHCP_CLIENT_EVENT_SELECTING));
430 :
431 1 : assert_se(sd_dhcp_client_get_lease(client, &lease) >= 0);
432 1 : assert_se(lease);
433 :
434 1 : assert_se(sd_dhcp_lease_get_address(lease, &addr) >= 0);
435 1 : assert_se(memcmp(&addr.s_addr, &test_addr_acq_ack[44],
436 : sizeof(addr.s_addr)) == 0);
437 :
438 1 : assert_se(sd_dhcp_lease_get_netmask(lease, &addr) >= 0);
439 1 : assert_se(memcmp(&addr.s_addr, &test_addr_acq_ack[285],
440 : sizeof(addr.s_addr)) == 0);
441 :
442 1 : assert_se(sd_dhcp_lease_get_router(lease, &addrs) == 1);
443 1 : assert_se(memcmp(&addrs[0].s_addr, &test_addr_acq_ack[308],
444 : sizeof(addrs[0].s_addr)) == 0);
445 :
446 1 : if (verbose)
447 1 : printf(" DHCP address acquired\n");
448 :
449 1 : sd_event_exit(e, 0);
450 :
451 1 : return 0;
452 : }
453 :
454 0 : static int test_addr_acq_recv_request(size_t size, DHCPMessage *request) {
455 0 : uint16_t udp_check = 0;
456 0 : uint8_t *msg_bytes = (uint8_t *)request;
457 : int res;
458 :
459 0 : res = dhcp_option_parse(request, size, check_options, NULL, NULL);
460 0 : assert_se(res == DHCP_REQUEST);
461 0 : assert_se(xid == request->xid);
462 :
463 0 : assert_se(msg_bytes[size - 1] == SD_DHCP_OPTION_END);
464 :
465 0 : if (verbose)
466 0 : printf(" recv DHCP Request 0x%08x\n", be32toh(xid));
467 :
468 0 : memcpy(&test_addr_acq_ack[26], &udp_check, sizeof(udp_check));
469 0 : memcpy(&test_addr_acq_ack[32], &xid, sizeof(xid));
470 0 : memcpy(&test_addr_acq_ack[56], &mac_addr, ETHER_ADDR_LEN);
471 :
472 0 : callback_recv = NULL;
473 :
474 0 : res = write(test_fd[1], test_addr_acq_ack,
475 : sizeof(test_addr_acq_ack));
476 0 : assert_se(res == sizeof(test_addr_acq_ack));
477 :
478 0 : if (verbose)
479 0 : printf(" send DHCP Ack\n");
480 :
481 0 : return 0;
482 : };
483 :
484 1 : static int test_addr_acq_recv_discover(size_t size, DHCPMessage *discover) {
485 1 : uint16_t udp_check = 0;
486 1 : uint8_t *msg_bytes = (uint8_t *)discover;
487 : int res;
488 :
489 1 : res = dhcp_option_parse(discover, size, check_options, NULL, NULL);
490 1 : assert_se(res == DHCP_DISCOVER);
491 :
492 1 : assert_se(msg_bytes[size - 1] == SD_DHCP_OPTION_END);
493 :
494 1 : xid = discover->xid;
495 :
496 1 : if (verbose)
497 1 : printf(" recv DHCP Discover 0x%08x\n", be32toh(xid));
498 :
499 1 : memcpy(&test_addr_acq_offer[26], &udp_check, sizeof(udp_check));
500 1 : memcpy(&test_addr_acq_offer[32], &xid, sizeof(xid));
501 1 : memcpy(&test_addr_acq_offer[56], &mac_addr, ETHER_ADDR_LEN);
502 :
503 1 : callback_recv = test_addr_acq_recv_request;
504 :
505 1 : res = write(test_fd[1], test_addr_acq_offer,
506 : sizeof(test_addr_acq_offer));
507 1 : assert_se(res == sizeof(test_addr_acq_offer));
508 :
509 1 : if (verbose)
510 1 : printf(" sent DHCP Offer\n");
511 :
512 1 : return 0;
513 : }
514 :
515 1 : static void test_addr_acq(sd_event *e) {
516 1 : usec_t time_now = now(clock_boottime_or_monotonic());
517 : sd_dhcp_client *client;
518 : int res, r;
519 :
520 1 : if (verbose)
521 1 : printf("* %s\n", __FUNCTION__);
522 :
523 1 : r = sd_dhcp_client_new(&client, false);
524 1 : assert_se(r >= 0);
525 1 : assert_se(client);
526 :
527 1 : r = sd_dhcp_client_attach_event(client, e, 0);
528 1 : assert_se(r >= 0);
529 :
530 1 : assert_se(sd_dhcp_client_set_ifindex(client, 42) >= 0);
531 1 : assert_se(sd_dhcp_client_set_mac(client, mac_addr, ETH_ALEN, ARPHRD_ETHER) >= 0);
532 :
533 1 : assert_se(sd_dhcp_client_set_callback(client, test_addr_acq_acquired, e) >= 0);
534 :
535 1 : callback_recv = test_addr_acq_recv_discover;
536 :
537 1 : assert_se(sd_event_add_time(e, &test_hangcheck,
538 : clock_boottime_or_monotonic(),
539 : time_now + 2 * USEC_PER_SEC, 0,
540 : test_dhcp_hangcheck, NULL) >= 0);
541 :
542 1 : res = sd_dhcp_client_start(client);
543 1 : assert_se(IN_SET(res, 0, -EINPROGRESS));
544 :
545 1 : assert_se(sd_event_loop(e) >= 0);
546 :
547 1 : test_hangcheck = sd_event_source_unref(test_hangcheck);
548 :
549 1 : assert_se(sd_dhcp_client_set_callback(client, NULL, NULL) >= 0);
550 1 : assert_se(sd_dhcp_client_stop(client) >= 0);
551 1 : sd_dhcp_client_unref(client);
552 :
553 1 : test_fd[1] = safe_close(test_fd[1]);
554 :
555 1 : callback_recv = NULL;
556 1 : xid = 0;
557 1 : }
558 :
559 1 : int main(int argc, char *argv[]) {
560 1 : _cleanup_(sd_event_unrefp) sd_event *e;
561 :
562 1 : test_setup_logging(LOG_DEBUG);
563 :
564 1 : assert_se(sd_event_new(&e) >= 0);
565 :
566 1 : test_request_basic(e);
567 1 : test_request_anonymize(e);
568 1 : test_checksum();
569 1 : test_dhcp_identifier_set_iaid();
570 :
571 1 : test_discover_message(e);
572 1 : test_addr_acq(e);
573 :
574 : #if VALGRIND
575 : /* Make sure the async_close thread has finished.
576 : * valgrind would report some of the phread_* structures
577 : * as not cleaned up properly. */
578 : sleep(1);
579 : #endif
580 :
581 1 : return 0;
582 : }
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