Line data Source code
1 : /* SPDX-License-Identifier: LGPL-2.1+ */
2 :
3 : #include <net/if.h>
4 : #include <netinet/ether.h>
5 : #include <linux/genetlink.h>
6 :
7 : #include "sd-netlink.h"
8 :
9 : #include "alloc-util.h"
10 : #include "ether-addr-util.h"
11 : #include "macro.h"
12 : #include "missing.h"
13 : #include "netlink-util.h"
14 : #include "socket-util.h"
15 : #include "stdio-util.h"
16 : #include "string-util.h"
17 : #include "util.h"
18 :
19 1 : static void test_message_link_bridge(sd_netlink *rtnl) {
20 1 : _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *message = NULL;
21 : uint32_t cost;
22 :
23 1 : assert_se(sd_rtnl_message_new_link(rtnl, &message, RTM_NEWLINK, 1) >= 0);
24 1 : assert_se(sd_rtnl_message_link_set_family(message, PF_BRIDGE) >= 0);
25 1 : assert_se(sd_netlink_message_open_container(message, IFLA_PROTINFO) >= 0);
26 1 : assert_se(sd_netlink_message_append_u32(message, IFLA_BRPORT_COST, 10) >= 0);
27 1 : assert_se(sd_netlink_message_close_container(message) >= 0);
28 :
29 1 : assert_se(sd_netlink_message_rewind(message) >= 0);
30 :
31 1 : assert_se(sd_netlink_message_enter_container(message, IFLA_PROTINFO) >= 0);
32 1 : assert_se(sd_netlink_message_read_u32(message, IFLA_BRPORT_COST, &cost) >= 0);
33 1 : assert_se(cost == 10);
34 1 : assert_se(sd_netlink_message_exit_container(message) >= 0);
35 1 : }
36 :
37 1 : static void test_link_configure(sd_netlink *rtnl, int ifindex) {
38 1 : _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *message = NULL;
39 1 : const char *mac = "98:fe:94:3f:c6:18", *name = "test";
40 : char buffer[ETHER_ADDR_TO_STRING_MAX];
41 1 : uint32_t mtu = 1450, mtu_out;
42 : const char *name_out;
43 : struct ether_addr mac_out;
44 :
45 : /* we'd really like to test NEWLINK, but let's not mess with the running kernel */
46 1 : assert_se(sd_rtnl_message_new_link(rtnl, &message, RTM_GETLINK, ifindex) >= 0);
47 1 : assert_se(sd_netlink_message_append_string(message, IFLA_IFNAME, name) >= 0);
48 1 : assert_se(sd_netlink_message_append_ether_addr(message, IFLA_ADDRESS, ether_aton(mac)) >= 0);
49 1 : assert_se(sd_netlink_message_append_u32(message, IFLA_MTU, mtu) >= 0);
50 :
51 1 : assert_se(sd_netlink_call(rtnl, message, 0, NULL) == 1);
52 1 : assert_se(sd_netlink_message_rewind(message) >= 0);
53 :
54 1 : assert_se(sd_netlink_message_read_string(message, IFLA_IFNAME, &name_out) >= 0);
55 1 : assert_se(streq(name, name_out));
56 :
57 1 : assert_se(sd_netlink_message_read_ether_addr(message, IFLA_ADDRESS, &mac_out) >= 0);
58 1 : assert_se(streq(mac, ether_addr_to_string(&mac_out, buffer)));
59 :
60 1 : assert_se(sd_netlink_message_read_u32(message, IFLA_MTU, &mtu_out) >= 0);
61 1 : assert_se(mtu == mtu_out);
62 1 : }
63 :
64 1 : static void test_link_get(sd_netlink *rtnl, int ifindex) {
65 : sd_netlink_message *m;
66 : sd_netlink_message *r;
67 1 : uint32_t mtu = 1500;
68 : const char *str_data;
69 : uint8_t u8_data;
70 : uint32_t u32_data;
71 : struct ether_addr eth_data;
72 :
73 1 : assert_se(sd_rtnl_message_new_link(rtnl, &m, RTM_GETLINK, ifindex) >= 0);
74 1 : assert_se(m);
75 :
76 : /* u8 test cases */
77 1 : assert_se(sd_netlink_message_append_u8(m, IFLA_CARRIER, 0) >= 0);
78 1 : assert_se(sd_netlink_message_append_u8(m, IFLA_OPERSTATE, 0) >= 0);
79 1 : assert_se(sd_netlink_message_append_u8(m, IFLA_LINKMODE, 0) >= 0);
80 :
81 : /* u32 test cases */
82 1 : assert_se(sd_netlink_message_append_u32(m, IFLA_MTU, mtu) >= 0);
83 1 : assert_se(sd_netlink_message_append_u32(m, IFLA_GROUP, 0) >= 0);
84 1 : assert_se(sd_netlink_message_append_u32(m, IFLA_TXQLEN, 0) >= 0);
85 1 : assert_se(sd_netlink_message_append_u32(m, IFLA_NUM_TX_QUEUES, 0) >= 0);
86 1 : assert_se(sd_netlink_message_append_u32(m, IFLA_NUM_RX_QUEUES, 0) >= 0);
87 :
88 1 : assert_se(sd_netlink_call(rtnl, m, -1, &r) == 1);
89 :
90 1 : assert_se(sd_netlink_message_read_string(r, IFLA_IFNAME, &str_data) == 0);
91 :
92 1 : assert_se(sd_netlink_message_read_u8(r, IFLA_CARRIER, &u8_data) == 0);
93 1 : assert_se(sd_netlink_message_read_u8(r, IFLA_OPERSTATE, &u8_data) == 0);
94 1 : assert_se(sd_netlink_message_read_u8(r, IFLA_LINKMODE, &u8_data) == 0);
95 :
96 1 : assert_se(sd_netlink_message_read_u32(r, IFLA_MTU, &u32_data) == 0);
97 1 : assert_se(sd_netlink_message_read_u32(r, IFLA_GROUP, &u32_data) == 0);
98 1 : assert_se(sd_netlink_message_read_u32(r, IFLA_TXQLEN, &u32_data) == 0);
99 1 : assert_se(sd_netlink_message_read_u32(r, IFLA_NUM_TX_QUEUES, &u32_data) == 0);
100 1 : assert_se(sd_netlink_message_read_u32(r, IFLA_NUM_RX_QUEUES, &u32_data) == 0);
101 :
102 1 : assert_se(sd_netlink_message_read_ether_addr(r, IFLA_ADDRESS, ð_data) == 0);
103 :
104 1 : assert_se((m = sd_netlink_message_unref(m)) == NULL);
105 1 : assert_se((r = sd_netlink_message_unref(r)) == NULL);
106 1 : }
107 :
108 1 : static void test_address_get(sd_netlink *rtnl, int ifindex) {
109 : sd_netlink_message *m;
110 : sd_netlink_message *r;
111 : struct in_addr in_data;
112 : struct ifa_cacheinfo cache;
113 : const char *label;
114 :
115 1 : assert_se(sd_rtnl_message_new_addr(rtnl, &m, RTM_GETADDR, ifindex, AF_INET) >= 0);
116 1 : assert_se(m);
117 :
118 1 : assert_se(sd_netlink_call(rtnl, m, -1, &r) == 1);
119 :
120 1 : assert_se(sd_netlink_message_read_in_addr(r, IFA_LOCAL, &in_data) == 0);
121 1 : assert_se(sd_netlink_message_read_in_addr(r, IFA_ADDRESS, &in_data) == 0);
122 1 : assert_se(sd_netlink_message_read_string(r, IFA_LABEL, &label) == 0);
123 1 : assert_se(sd_netlink_message_read_cache_info(r, IFA_CACHEINFO, &cache) == 0);
124 :
125 1 : assert_se((m = sd_netlink_message_unref(m)) == NULL);
126 1 : assert_se((r = sd_netlink_message_unref(r)) == NULL);
127 :
128 1 : }
129 :
130 1 : static void test_route(sd_netlink *rtnl) {
131 1 : _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req;
132 : struct in_addr addr, addr_data;
133 1 : uint32_t index = 2, u32_data;
134 : int r;
135 :
136 1 : r = sd_rtnl_message_new_route(rtnl, &req, RTM_NEWROUTE, AF_INET, RTPROT_STATIC);
137 1 : if (r < 0) {
138 0 : log_error_errno(r, "Could not create RTM_NEWROUTE message: %m");
139 0 : return;
140 : }
141 :
142 1 : addr.s_addr = htonl(INADDR_LOOPBACK);
143 :
144 1 : r = sd_netlink_message_append_in_addr(req, RTA_GATEWAY, &addr);
145 1 : if (r < 0) {
146 0 : log_error_errno(r, "Could not append RTA_GATEWAY attribute: %m");
147 0 : return;
148 : }
149 :
150 1 : r = sd_netlink_message_append_u32(req, RTA_OIF, index);
151 1 : if (r < 0) {
152 0 : log_error_errno(r, "Could not append RTA_OIF attribute: %m");
153 0 : return;
154 : }
155 :
156 1 : assert_se(sd_netlink_message_rewind(req) >= 0);
157 :
158 1 : assert_se(sd_netlink_message_read_in_addr(req, RTA_GATEWAY, &addr_data) >= 0);
159 1 : assert_se(addr_data.s_addr == addr.s_addr);
160 :
161 1 : assert_se(sd_netlink_message_read_u32(req, RTA_OIF, &u32_data) >= 0);
162 1 : assert_se(u32_data == index);
163 :
164 1 : assert_se((req = sd_netlink_message_unref(req)) == NULL);
165 : }
166 :
167 1 : static void test_multiple(void) {
168 : sd_netlink *rtnl1, *rtnl2;
169 :
170 1 : assert_se(sd_netlink_open(&rtnl1) >= 0);
171 1 : assert_se(sd_netlink_open(&rtnl2) >= 0);
172 :
173 1 : rtnl1 = sd_netlink_unref(rtnl1);
174 1 : rtnl2 = sd_netlink_unref(rtnl2);
175 1 : }
176 :
177 3 : static int link_handler(sd_netlink *rtnl, sd_netlink_message *m, void *userdata) {
178 3 : char *ifname = userdata;
179 : const char *data;
180 :
181 3 : assert_se(rtnl);
182 3 : assert_se(m);
183 3 : assert_se(userdata);
184 :
185 3 : log_info("%s: got link info about %s", __func__, ifname);
186 3 : free(ifname);
187 :
188 3 : assert_se(sd_netlink_message_read_string(m, IFLA_IFNAME, &data) >= 0);
189 3 : assert_se(streq(data, "lo"));
190 :
191 3 : return 1;
192 : }
193 :
194 1 : static void test_event_loop(int ifindex) {
195 1 : _cleanup_(sd_event_unrefp) sd_event *event = NULL;
196 1 : _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL;
197 1 : _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *m = NULL;
198 : char *ifname;
199 :
200 1 : ifname = strdup("lo2");
201 1 : assert_se(ifname);
202 :
203 1 : assert_se(sd_netlink_open(&rtnl) >= 0);
204 1 : assert_se(sd_rtnl_message_new_link(rtnl, &m, RTM_GETLINK, ifindex) >= 0);
205 :
206 1 : assert_se(sd_netlink_call_async(rtnl, NULL, m, link_handler, NULL, ifname, 0, NULL) >= 0);
207 :
208 1 : assert_se(sd_event_default(&event) >= 0);
209 :
210 1 : assert_se(sd_netlink_attach_event(rtnl, event, 0) >= 0);
211 :
212 1 : assert_se(sd_event_run(event, 0) >= 0);
213 :
214 1 : assert_se(sd_netlink_detach_event(rtnl) >= 0);
215 :
216 1 : assert_se((rtnl = sd_netlink_unref(rtnl)) == NULL);
217 1 : }
218 :
219 2 : static void test_async_destroy(void *userdata) {
220 2 : }
221 :
222 1 : static void test_async(int ifindex) {
223 1 : _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL;
224 1 : _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *m = NULL, *r = NULL;
225 1 : _cleanup_(sd_netlink_slot_unrefp) sd_netlink_slot *slot = NULL;
226 : sd_netlink_destroy_t destroy_callback;
227 : const char *description;
228 : char *ifname;
229 :
230 1 : ifname = strdup("lo");
231 1 : assert_se(ifname);
232 :
233 1 : assert_se(sd_netlink_open(&rtnl) >= 0);
234 :
235 1 : assert_se(sd_rtnl_message_new_link(rtnl, &m, RTM_GETLINK, ifindex) >= 0);
236 :
237 1 : assert_se(sd_netlink_call_async(rtnl, &slot, m, link_handler, test_async_destroy, ifname, 0, "hogehoge") >= 0);
238 :
239 1 : assert_se(sd_netlink_slot_get_netlink(slot) == rtnl);
240 1 : assert_se(sd_netlink_slot_get_userdata(slot) == ifname);
241 1 : assert_se(sd_netlink_slot_get_destroy_callback(slot, &destroy_callback) == 1);
242 1 : assert_se(destroy_callback == test_async_destroy);
243 1 : assert_se(sd_netlink_slot_get_floating(slot) == 0);
244 1 : assert_se(sd_netlink_slot_get_description(slot, &description) == 1);
245 1 : assert_se(streq(description, "hogehoge"));
246 :
247 1 : assert_se(sd_netlink_wait(rtnl, 0) >= 0);
248 1 : assert_se(sd_netlink_process(rtnl, &r) >= 0);
249 :
250 1 : assert_se((rtnl = sd_netlink_unref(rtnl)) == NULL);
251 1 : }
252 :
253 1 : static void test_slot_set(int ifindex) {
254 1 : _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL;
255 1 : _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *m = NULL, *r = NULL;
256 1 : _cleanup_(sd_netlink_slot_unrefp) sd_netlink_slot *slot = NULL;
257 : sd_netlink_destroy_t destroy_callback;
258 : const char *description;
259 : char *ifname;
260 :
261 1 : ifname = strdup("lo");
262 1 : assert_se(ifname);
263 :
264 1 : assert_se(sd_netlink_open(&rtnl) >= 0);
265 :
266 1 : assert_se(sd_rtnl_message_new_link(rtnl, &m, RTM_GETLINK, ifindex) >= 0);
267 :
268 1 : assert_se(sd_netlink_call_async(rtnl, &slot, m, link_handler, NULL, NULL, 0, NULL) >= 0);
269 :
270 1 : assert_se(sd_netlink_slot_get_netlink(slot) == rtnl);
271 1 : assert_se(!sd_netlink_slot_get_userdata(slot));
272 1 : assert_se(!sd_netlink_slot_set_userdata(slot, ifname));
273 1 : assert_se(sd_netlink_slot_get_userdata(slot) == ifname);
274 1 : assert_se(sd_netlink_slot_get_destroy_callback(slot, NULL) == 0);
275 1 : assert_se(sd_netlink_slot_set_destroy_callback(slot, test_async_destroy) >= 0);
276 1 : assert_se(sd_netlink_slot_get_destroy_callback(slot, &destroy_callback) == 1);
277 1 : assert_se(destroy_callback == test_async_destroy);
278 1 : assert_se(sd_netlink_slot_get_floating(slot) == 0);
279 1 : assert_se(sd_netlink_slot_set_floating(slot, 1) == 1);
280 1 : assert_se(sd_netlink_slot_get_floating(slot) == 1);
281 1 : assert_se(sd_netlink_slot_get_description(slot, NULL) == 0);
282 1 : assert_se(sd_netlink_slot_set_description(slot, "hogehoge") >= 0);
283 1 : assert_se(sd_netlink_slot_get_description(slot, &description) == 1);
284 1 : assert_se(streq(description, "hogehoge"));
285 :
286 1 : assert_se(sd_netlink_wait(rtnl, 0) >= 0);
287 1 : assert_se(sd_netlink_process(rtnl, &r) >= 0);
288 :
289 1 : assert_se((rtnl = sd_netlink_unref(rtnl)) == NULL);
290 1 : }
291 :
292 : struct test_async_object {
293 : unsigned n_ref;
294 : char *ifname;
295 : };
296 :
297 1 : static struct test_async_object *test_async_object_free(struct test_async_object *t) {
298 1 : assert(t);
299 :
300 1 : free(t->ifname);
301 1 : return mfree(t);
302 : }
303 :
304 7 : DEFINE_PRIVATE_TRIVIAL_REF_UNREF_FUNC(struct test_async_object, test_async_object, test_async_object_free);
305 1 : DEFINE_TRIVIAL_CLEANUP_FUNC(struct test_async_object *, test_async_object_unref);
306 :
307 1 : static int link_handler2(sd_netlink *rtnl, sd_netlink_message *m, void *userdata) {
308 1 : struct test_async_object *t = userdata;
309 : const char *data;
310 :
311 1 : assert_se(rtnl);
312 1 : assert_se(m);
313 1 : assert_se(userdata);
314 :
315 1 : log_info("%s: got link info about %s", __func__, t->ifname);
316 :
317 1 : assert_se(sd_netlink_message_read_string(m, IFLA_IFNAME, &data) >= 0);
318 1 : assert_se(streq(data, "lo"));
319 :
320 1 : return 1;
321 : }
322 :
323 3 : static void test_async_object_destroy(void *userdata) {
324 3 : struct test_async_object *t = userdata;
325 :
326 3 : assert(userdata);
327 :
328 3 : log_info("%s: n_ref=%u", __func__, t->n_ref);
329 3 : test_async_object_unref(t);
330 3 : }
331 :
332 1 : static void test_async_destroy_callback(int ifindex) {
333 1 : _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL;
334 1 : _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *m = NULL, *r = NULL;
335 1 : _cleanup_(test_async_object_unrefp) struct test_async_object *t = NULL;
336 1 : _cleanup_(sd_netlink_slot_unrefp) sd_netlink_slot *slot = NULL;
337 : char *ifname;
338 :
339 1 : assert_se(t = new(struct test_async_object, 1));
340 1 : assert_se(ifname = strdup("lo"));
341 1 : *t = (struct test_async_object) {
342 : .n_ref = 1,
343 : .ifname = ifname,
344 : };
345 :
346 1 : assert_se(sd_netlink_open(&rtnl) >= 0);
347 :
348 : /* destroy callback is called after processing message */
349 1 : assert_se(sd_rtnl_message_new_link(rtnl, &m, RTM_GETLINK, ifindex) >= 0);
350 1 : assert_se(sd_netlink_call_async(rtnl, NULL, m, link_handler2, test_async_object_destroy, t, 0, NULL) >= 0);
351 :
352 1 : assert_se(t->n_ref == 1);
353 1 : assert_se(test_async_object_ref(t));
354 1 : assert_se(t->n_ref == 2);
355 :
356 1 : assert_se(sd_netlink_wait(rtnl, 0) >= 0);
357 1 : assert_se(sd_netlink_process(rtnl, &r) == 1);
358 1 : assert_se(t->n_ref == 1);
359 :
360 1 : assert_se(!sd_netlink_message_unref(m));
361 :
362 : /* destroy callback is called when asynchronous call is cancelled, that is, slot is freed. */
363 1 : assert_se(sd_rtnl_message_new_link(rtnl, &m, RTM_GETLINK, ifindex) >= 0);
364 1 : assert_se(sd_netlink_call_async(rtnl, &slot, m, link_handler2, test_async_object_destroy, t, 0, NULL) >= 0);
365 :
366 1 : assert_se(t->n_ref == 1);
367 1 : assert_se(test_async_object_ref(t));
368 1 : assert_se(t->n_ref == 2);
369 :
370 1 : assert_se(!(slot = sd_netlink_slot_unref(slot)));
371 1 : assert_se(t->n_ref == 1);
372 :
373 1 : assert_se(!sd_netlink_message_unref(m));
374 :
375 : /* destroy callback is also called by sd_netlink_unref() */
376 1 : assert_se(sd_rtnl_message_new_link(rtnl, &m, RTM_GETLINK, ifindex) >= 0);
377 1 : assert_se(sd_netlink_call_async(rtnl, NULL, m, link_handler2, test_async_object_destroy, t, 0, NULL) >= 0);
378 :
379 1 : assert_se(t->n_ref == 1);
380 1 : assert_se(test_async_object_ref(t));
381 1 : assert_se(t->n_ref == 2);
382 :
383 1 : assert_se((rtnl = sd_netlink_unref(rtnl)) == NULL);
384 1 : assert_se(t->n_ref == 1);
385 1 : }
386 :
387 2 : static int pipe_handler(sd_netlink *rtnl, sd_netlink_message *m, void *userdata) {
388 2 : int *counter = userdata;
389 : int r;
390 :
391 2 : (*counter)--;
392 :
393 2 : r = sd_netlink_message_get_errno(m);
394 :
395 2 : log_info_errno(r, "%d left in pipe. got reply: %m", *counter);
396 :
397 2 : assert_se(r >= 0);
398 :
399 2 : return 1;
400 : }
401 :
402 1 : static void test_pipe(int ifindex) {
403 1 : _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL;
404 1 : _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *m1 = NULL, *m2 = NULL;
405 1 : int counter = 0;
406 :
407 1 : assert_se(sd_netlink_open(&rtnl) >= 0);
408 :
409 1 : assert_se(sd_rtnl_message_new_link(rtnl, &m1, RTM_GETLINK, ifindex) >= 0);
410 1 : assert_se(sd_rtnl_message_new_link(rtnl, &m2, RTM_GETLINK, ifindex) >= 0);
411 :
412 1 : counter++;
413 1 : assert_se(sd_netlink_call_async(rtnl, NULL, m1, pipe_handler, NULL, &counter, 0, NULL) >= 0);
414 :
415 1 : counter++;
416 1 : assert_se(sd_netlink_call_async(rtnl, NULL, m2, pipe_handler, NULL, &counter, 0, NULL) >= 0);
417 :
418 4 : while (counter > 0) {
419 3 : assert_se(sd_netlink_wait(rtnl, 0) >= 0);
420 3 : assert_se(sd_netlink_process(rtnl, NULL) >= 0);
421 : }
422 :
423 1 : assert_se((rtnl = sd_netlink_unref(rtnl)) == NULL);
424 1 : }
425 :
426 1 : static void test_container(sd_netlink *rtnl) {
427 1 : _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *m = NULL;
428 : uint16_t u16_data;
429 : uint32_t u32_data;
430 : const char *string_data;
431 :
432 1 : assert_se(sd_rtnl_message_new_link(rtnl, &m, RTM_NEWLINK, 0) >= 0);
433 :
434 1 : assert_se(sd_netlink_message_open_container(m, IFLA_LINKINFO) >= 0);
435 1 : assert_se(sd_netlink_message_open_container_union(m, IFLA_INFO_DATA, "vlan") >= 0);
436 1 : assert_se(sd_netlink_message_append_u16(m, IFLA_VLAN_ID, 100) >= 0);
437 1 : assert_se(sd_netlink_message_close_container(m) >= 0);
438 1 : assert_se(sd_netlink_message_append_string(m, IFLA_INFO_KIND, "vlan") >= 0);
439 1 : assert_se(sd_netlink_message_close_container(m) >= 0);
440 1 : assert_se(sd_netlink_message_close_container(m) == -EINVAL);
441 :
442 1 : assert_se(sd_netlink_message_rewind(m) >= 0);
443 :
444 1 : assert_se(sd_netlink_message_enter_container(m, IFLA_LINKINFO) >= 0);
445 1 : assert_se(sd_netlink_message_read_string(m, IFLA_INFO_KIND, &string_data) >= 0);
446 1 : assert_se(streq("vlan", string_data));
447 :
448 1 : assert_se(sd_netlink_message_enter_container(m, IFLA_INFO_DATA) >= 0);
449 1 : assert_se(sd_netlink_message_read_u16(m, IFLA_VLAN_ID, &u16_data) >= 0);
450 1 : assert_se(sd_netlink_message_exit_container(m) >= 0);
451 :
452 1 : assert_se(sd_netlink_message_read_string(m, IFLA_INFO_KIND, &string_data) >= 0);
453 1 : assert_se(streq("vlan", string_data));
454 1 : assert_se(sd_netlink_message_exit_container(m) >= 0);
455 :
456 1 : assert_se(sd_netlink_message_read_u32(m, IFLA_LINKINFO, &u32_data) < 0);
457 :
458 1 : assert_se(sd_netlink_message_exit_container(m) == -EINVAL);
459 1 : }
460 :
461 1 : static void test_match(void) {
462 1 : _cleanup_(sd_netlink_slot_unrefp) sd_netlink_slot *s1 = NULL, *s2 = NULL;
463 1 : _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL;
464 :
465 1 : assert_se(sd_netlink_open(&rtnl) >= 0);
466 :
467 1 : assert_se(sd_netlink_add_match(rtnl, &s1, RTM_NEWLINK, link_handler, NULL, NULL, NULL) >= 0);
468 1 : assert_se(sd_netlink_add_match(rtnl, &s2, RTM_NEWLINK, link_handler, NULL, NULL, NULL) >= 0);
469 1 : assert_se(sd_netlink_add_match(rtnl, NULL, RTM_NEWLINK, link_handler, NULL, NULL, NULL) >= 0);
470 :
471 1 : assert_se(!(s1 = sd_netlink_slot_unref(s1)));
472 1 : assert_se(!(s2 = sd_netlink_slot_unref(s2)));
473 :
474 1 : assert_se((rtnl = sd_netlink_unref(rtnl)) == NULL);
475 1 : }
476 :
477 1 : static void test_get_addresses(sd_netlink *rtnl) {
478 1 : _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL, *reply = NULL;
479 : sd_netlink_message *m;
480 :
481 1 : assert_se(sd_rtnl_message_new_addr(rtnl, &req, RTM_GETADDR, 0, AF_UNSPEC) >= 0);
482 :
483 1 : assert_se(sd_netlink_call(rtnl, req, 0, &reply) >= 0);
484 :
485 9 : for (m = reply; m; m = sd_netlink_message_next(m)) {
486 : uint16_t type;
487 : unsigned char scope, flags;
488 : int family, ifindex;
489 :
490 8 : assert_se(sd_netlink_message_get_type(m, &type) >= 0);
491 8 : assert_se(type == RTM_NEWADDR);
492 :
493 8 : assert_se(sd_rtnl_message_addr_get_ifindex(m, &ifindex) >= 0);
494 8 : assert_se(sd_rtnl_message_addr_get_family(m, &family) >= 0);
495 8 : assert_se(sd_rtnl_message_addr_get_scope(m, &scope) >= 0);
496 8 : assert_se(sd_rtnl_message_addr_get_flags(m, &flags) >= 0);
497 :
498 8 : assert_se(ifindex > 0);
499 8 : assert_se(IN_SET(family, AF_INET, AF_INET6));
500 :
501 8 : log_info("got IPv%u address on ifindex %i", family == AF_INET ? 4: 6, ifindex);
502 : }
503 1 : }
504 :
505 1 : static void test_message(sd_netlink *rtnl) {
506 1 : _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *m = NULL;
507 :
508 1 : assert_se(rtnl_message_new_synthetic_error(rtnl, -ETIMEDOUT, 1, &m) >= 0);
509 1 : assert_se(sd_netlink_message_get_errno(m) == -ETIMEDOUT);
510 1 : }
511 :
512 1 : static void test_array(void) {
513 1 : _cleanup_(sd_netlink_unrefp) sd_netlink *genl = NULL;
514 1 : _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *m = NULL;
515 :
516 1 : assert_se(sd_genl_socket_open(&genl) >= 0);
517 1 : assert_se(sd_genl_message_new(genl, SD_GENL_ID_CTRL, CTRL_CMD_GETFAMILY, &m) >= 0);
518 :
519 1 : assert_se(sd_netlink_message_open_container(m, CTRL_ATTR_MCAST_GROUPS) >= 0);
520 11 : for (unsigned i = 0; i < 10; i++) {
521 : char name[STRLEN("hoge") + DECIMAL_STR_MAX(uint32_t)];
522 10 : uint32_t id = i + 1000;
523 :
524 10 : xsprintf(name, "hoge%" PRIu32, id);
525 10 : assert_se(sd_netlink_message_open_array(m, i + 1) >= 0);
526 10 : assert_se(sd_netlink_message_append_u32(m, CTRL_ATTR_MCAST_GRP_ID, id) >= 0);
527 10 : assert_se(sd_netlink_message_append_string(m, CTRL_ATTR_MCAST_GRP_NAME, name) >= 0);
528 10 : assert_se(sd_netlink_message_close_container(m) >= 0);
529 : }
530 1 : assert_se(sd_netlink_message_close_container(m) >= 0);
531 :
532 1 : rtnl_message_seal(m);
533 1 : assert_se(sd_netlink_message_rewind(m) >= 0);
534 :
535 1 : assert_se(sd_netlink_message_enter_container(m, CTRL_ATTR_MCAST_GROUPS) >= 0);
536 11 : for (unsigned i = 0; i < 10; i++) {
537 : char expected[STRLEN("hoge") + DECIMAL_STR_MAX(uint32_t)];
538 : const char *name;
539 : uint32_t id;
540 :
541 10 : assert_se(sd_netlink_message_enter_array(m, i + 1) >= 0);
542 10 : assert_se(sd_netlink_message_read_u32(m, CTRL_ATTR_MCAST_GRP_ID, &id) >= 0);
543 10 : assert_se(sd_netlink_message_read_string(m, CTRL_ATTR_MCAST_GRP_NAME, &name) >= 0);
544 10 : assert_se(sd_netlink_message_exit_container(m) >= 0);
545 :
546 10 : assert_se(id == i + 1000);
547 10 : xsprintf(expected, "hoge%" PRIu32, id);
548 10 : assert_se(streq(name, expected));
549 : }
550 1 : assert_se(sd_netlink_message_exit_container(m) >= 0);
551 :
552 1 : }
553 :
554 1 : int main(void) {
555 : sd_netlink *rtnl;
556 : sd_netlink_message *m;
557 : sd_netlink_message *r;
558 : const char *string_data;
559 : int if_loopback;
560 : uint16_t type;
561 :
562 1 : test_match();
563 1 : test_multiple();
564 :
565 1 : assert_se(sd_netlink_open(&rtnl) >= 0);
566 1 : assert_se(rtnl);
567 :
568 1 : test_route(rtnl);
569 1 : test_message(rtnl);
570 1 : test_container(rtnl);
571 1 : test_array();
572 :
573 1 : if_loopback = (int) if_nametoindex("lo");
574 1 : assert_se(if_loopback > 0);
575 :
576 1 : test_async(if_loopback);
577 1 : test_slot_set(if_loopback);
578 1 : test_async_destroy_callback(if_loopback);
579 1 : test_pipe(if_loopback);
580 1 : test_event_loop(if_loopback);
581 1 : test_link_configure(rtnl, if_loopback);
582 :
583 1 : test_get_addresses(rtnl);
584 1 : test_message_link_bridge(rtnl);
585 :
586 1 : assert_se(sd_rtnl_message_new_link(rtnl, &m, RTM_GETLINK, if_loopback) >= 0);
587 1 : assert_se(m);
588 :
589 1 : assert_se(sd_netlink_message_get_type(m, &type) >= 0);
590 1 : assert_se(type == RTM_GETLINK);
591 :
592 1 : assert_se(sd_netlink_message_read_string(m, IFLA_IFNAME, &string_data) == -EPERM);
593 :
594 1 : assert_se(sd_netlink_call(rtnl, m, 0, &r) == 1);
595 1 : assert_se(sd_netlink_message_get_type(r, &type) >= 0);
596 1 : assert_se(type == RTM_NEWLINK);
597 :
598 1 : assert_se((r = sd_netlink_message_unref(r)) == NULL);
599 :
600 1 : assert_se(sd_netlink_call(rtnl, m, -1, &r) == -EPERM);
601 1 : assert_se((m = sd_netlink_message_unref(m)) == NULL);
602 1 : assert_se((r = sd_netlink_message_unref(r)) == NULL);
603 :
604 1 : test_link_get(rtnl, if_loopback);
605 1 : test_address_get(rtnl, if_loopback);
606 :
607 1 : assert_se((m = sd_netlink_message_unref(m)) == NULL);
608 1 : assert_se((r = sd_netlink_message_unref(r)) == NULL);
609 1 : assert_se((rtnl = sd_netlink_unref(rtnl)) == NULL);
610 :
611 1 : return EXIT_SUCCESS;
612 : }
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