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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
1c4baffc | 2 | /*** |
96b2fb93 | 3 | Copyright © 2013 Tom Gundersen <teg@jklm.no> |
1c4baffc TG |
4 | ***/ |
5 | ||
1c4baffc | 6 | #include <net/if.h> |
07630cea | 7 | #include <netinet/ether.h> |
1c4baffc | 8 | |
1c4baffc | 9 | #include "sd-netlink.h" |
07630cea | 10 | |
81a56d6f | 11 | #include "ether-addr-util.h" |
07630cea | 12 | #include "macro.h" |
1c4baffc | 13 | #include "missing.h" |
07630cea LP |
14 | #include "netlink-util.h" |
15 | #include "socket-util.h" | |
16 | #include "string-util.h" | |
17 | #include "util.h" | |
1c4baffc TG |
18 | |
19 | static void test_message_link_bridge(sd_netlink *rtnl) { | |
4afd3348 | 20 | _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *message = NULL; |
1c4baffc TG |
21 | uint32_t cost; |
22 | ||
23 | assert_se(sd_rtnl_message_new_link(rtnl, &message, RTM_NEWLINK, 1) >= 0); | |
24 | assert_se(sd_rtnl_message_link_set_family(message, PF_BRIDGE) >= 0); | |
25 | assert_se(sd_netlink_message_open_container(message, IFLA_PROTINFO) >= 0); | |
26 | assert_se(sd_netlink_message_append_u32(message, IFLA_BRPORT_COST, 10) >= 0); | |
27 | assert_se(sd_netlink_message_close_container(message) >= 0); | |
28 | ||
29 | assert_se(sd_netlink_message_rewind(message) >= 0); | |
30 | ||
31 | assert_se(sd_netlink_message_enter_container(message, IFLA_PROTINFO) >= 0); | |
32 | assert_se(sd_netlink_message_read_u32(message, IFLA_BRPORT_COST, &cost) >= 0); | |
33 | assert_se(cost == 10); | |
34 | assert_se(sd_netlink_message_exit_container(message) >= 0); | |
35 | } | |
36 | ||
37 | static void test_link_configure(sd_netlink *rtnl, int ifindex) { | |
4afd3348 | 38 | _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *message = NULL; |
1c4baffc TG |
39 | const char *mac = "98:fe:94:3f:c6:18", *name = "test"; |
40 | char buffer[ETHER_ADDR_TO_STRING_MAX]; | |
4e964aa0 | 41 | uint32_t mtu = 1450, mtu_out; |
1c4baffc TG |
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 | assert_se(sd_rtnl_message_new_link(rtnl, &message, RTM_GETLINK, ifindex) >= 0); | |
47 | assert_se(sd_netlink_message_append_string(message, IFLA_IFNAME, name) >= 0); | |
48 | assert_se(sd_netlink_message_append_ether_addr(message, IFLA_ADDRESS, ether_aton(mac)) >= 0); | |
49 | assert_se(sd_netlink_message_append_u32(message, IFLA_MTU, mtu) >= 0); | |
50 | ||
51 | assert_se(sd_netlink_call(rtnl, message, 0, NULL) == 1); | |
52 | assert_se(sd_netlink_message_rewind(message) >= 0); | |
53 | ||
54 | assert_se(sd_netlink_message_read_string(message, IFLA_IFNAME, &name_out) >= 0); | |
55 | assert_se(streq(name, name_out)); | |
56 | ||
57 | assert_se(sd_netlink_message_read_ether_addr(message, IFLA_ADDRESS, &mac_out) >= 0); | |
58 | assert_se(streq(mac, ether_addr_to_string(&mac_out, buffer))); | |
59 | ||
60 | assert_se(sd_netlink_message_read_u32(message, IFLA_MTU, &mtu_out) >= 0); | |
61 | assert_se(mtu == mtu_out); | |
62 | } | |
63 | ||
64 | static void test_link_get(sd_netlink *rtnl, int ifindex) { | |
65 | sd_netlink_message *m; | |
66 | sd_netlink_message *r; | |
4e964aa0 | 67 | uint32_t mtu = 1500; |
1c4baffc TG |
68 | const char *str_data; |
69 | uint8_t u8_data; | |
70 | uint32_t u32_data; | |
71 | struct ether_addr eth_data; | |
72 | ||
73 | assert_se(sd_rtnl_message_new_link(rtnl, &m, RTM_GETLINK, ifindex) >= 0); | |
74 | assert_se(m); | |
75 | ||
76 | /* u8 test cases */ | |
77 | assert_se(sd_netlink_message_append_u8(m, IFLA_CARRIER, 0) >= 0); | |
78 | assert_se(sd_netlink_message_append_u8(m, IFLA_OPERSTATE, 0) >= 0); | |
79 | assert_se(sd_netlink_message_append_u8(m, IFLA_LINKMODE, 0) >= 0); | |
80 | ||
81 | /* u32 test cases */ | |
82 | assert_se(sd_netlink_message_append_u32(m, IFLA_MTU, mtu) >= 0); | |
83 | assert_se(sd_netlink_message_append_u32(m, IFLA_GROUP, 0) >= 0); | |
84 | assert_se(sd_netlink_message_append_u32(m, IFLA_TXQLEN, 0) >= 0); | |
85 | assert_se(sd_netlink_message_append_u32(m, IFLA_NUM_TX_QUEUES, 0) >= 0); | |
86 | assert_se(sd_netlink_message_append_u32(m, IFLA_NUM_RX_QUEUES, 0) >= 0); | |
87 | ||
88 | assert_se(sd_netlink_call(rtnl, m, -1, &r) == 1); | |
89 | ||
90 | assert_se(sd_netlink_message_read_string(r, IFLA_IFNAME, &str_data) == 0); | |
91 | ||
92 | assert_se(sd_netlink_message_read_u8(r, IFLA_CARRIER, &u8_data) == 0); | |
93 | assert_se(sd_netlink_message_read_u8(r, IFLA_OPERSTATE, &u8_data) == 0); | |
94 | assert_se(sd_netlink_message_read_u8(r, IFLA_LINKMODE, &u8_data) == 0); | |
95 | ||
96 | assert_se(sd_netlink_message_read_u32(r, IFLA_MTU, &u32_data) == 0); | |
97 | assert_se(sd_netlink_message_read_u32(r, IFLA_GROUP, &u32_data) == 0); | |
98 | assert_se(sd_netlink_message_read_u32(r, IFLA_TXQLEN, &u32_data) == 0); | |
99 | assert_se(sd_netlink_message_read_u32(r, IFLA_NUM_TX_QUEUES, &u32_data) == 0); | |
100 | assert_se(sd_netlink_message_read_u32(r, IFLA_NUM_RX_QUEUES, &u32_data) == 0); | |
101 | ||
102 | assert_se(sd_netlink_message_read_ether_addr(r, IFLA_ADDRESS, ð_data) == 0); | |
103 | ||
1c4baffc TG |
104 | assert_se((m = sd_netlink_message_unref(m)) == NULL); |
105 | assert_se((r = sd_netlink_message_unref(r)) == NULL); | |
106 | } | |
107 | ||
1c4baffc TG |
108 | 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 | assert_se(sd_rtnl_message_new_addr(rtnl, &m, RTM_GETADDR, ifindex, AF_INET) >= 0); | |
116 | assert_se(m); | |
117 | ||
118 | assert_se(sd_netlink_call(rtnl, m, -1, &r) == 1); | |
119 | ||
120 | assert_se(sd_netlink_message_read_in_addr(r, IFA_LOCAL, &in_data) == 0); | |
121 | assert_se(sd_netlink_message_read_in_addr(r, IFA_ADDRESS, &in_data) == 0); | |
122 | assert_se(sd_netlink_message_read_string(r, IFA_LABEL, &label) == 0); | |
123 | assert_se(sd_netlink_message_read_cache_info(r, IFA_CACHEINFO, &cache) == 0); | |
124 | ||
1c4baffc TG |
125 | assert_se((m = sd_netlink_message_unref(m)) == NULL); |
126 | assert_se((r = sd_netlink_message_unref(r)) == NULL); | |
127 | ||
128 | } | |
129 | ||
05d0c2e3 | 130 | static void test_route(sd_netlink *rtnl) { |
4afd3348 | 131 | _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req; |
1c4baffc TG |
132 | struct in_addr addr, addr_data; |
133 | uint32_t index = 2, u32_data; | |
134 | int r; | |
135 | ||
05d0c2e3 | 136 | r = sd_rtnl_message_new_route(rtnl, &req, RTM_NEWROUTE, AF_INET, RTPROT_STATIC); |
1c4baffc TG |
137 | if (r < 0) { |
138 | log_error_errno(r, "Could not create RTM_NEWROUTE message: %m"); | |
139 | return; | |
140 | } | |
141 | ||
142 | addr.s_addr = htonl(INADDR_LOOPBACK); | |
143 | ||
144 | r = sd_netlink_message_append_in_addr(req, RTA_GATEWAY, &addr); | |
145 | if (r < 0) { | |
146 | log_error_errno(r, "Could not append RTA_GATEWAY attribute: %m"); | |
147 | return; | |
148 | } | |
149 | ||
150 | r = sd_netlink_message_append_u32(req, RTA_OIF, index); | |
151 | if (r < 0) { | |
152 | log_error_errno(r, "Could not append RTA_OIF attribute: %m"); | |
153 | return; | |
154 | } | |
155 | ||
156 | assert_se(sd_netlink_message_rewind(req) >= 0); | |
157 | ||
158 | assert_se(sd_netlink_message_read_in_addr(req, RTA_GATEWAY, &addr_data) >= 0); | |
159 | assert_se(addr_data.s_addr == addr.s_addr); | |
160 | ||
161 | assert_se(sd_netlink_message_read_u32(req, RTA_OIF, &u32_data) >= 0); | |
162 | assert_se(u32_data == index); | |
163 | ||
164 | assert_se((req = sd_netlink_message_unref(req)) == NULL); | |
165 | } | |
166 | ||
167 | static void test_multiple(void) { | |
168 | sd_netlink *rtnl1, *rtnl2; | |
169 | ||
170 | assert_se(sd_netlink_open(&rtnl1) >= 0); | |
171 | assert_se(sd_netlink_open(&rtnl2) >= 0); | |
172 | ||
173 | rtnl1 = sd_netlink_unref(rtnl1); | |
174 | rtnl2 = sd_netlink_unref(rtnl2); | |
175 | } | |
176 | ||
177 | static int link_handler(sd_netlink *rtnl, sd_netlink_message *m, void *userdata) { | |
178 | char *ifname = userdata; | |
179 | const char *data; | |
180 | ||
181 | assert_se(rtnl); | |
182 | assert_se(m); | |
183 | ||
184 | log_info("got link info about %s", ifname); | |
185 | free(ifname); | |
186 | ||
187 | assert_se(sd_netlink_message_read_string(m, IFLA_IFNAME, &data) >= 0); | |
188 | assert_se(streq(data, "lo")); | |
189 | ||
190 | return 1; | |
191 | } | |
192 | ||
193 | static void test_event_loop(int ifindex) { | |
4afd3348 LP |
194 | _cleanup_(sd_event_unrefp) sd_event *event = NULL; |
195 | _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL; | |
196 | _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *m = NULL; | |
1c4baffc TG |
197 | char *ifname; |
198 | ||
199 | ifname = strdup("lo2"); | |
200 | assert_se(ifname); | |
201 | ||
202 | assert_se(sd_netlink_open(&rtnl) >= 0); | |
203 | assert_se(sd_rtnl_message_new_link(rtnl, &m, RTM_GETLINK, ifindex) >= 0); | |
204 | ||
483d099e | 205 | assert_se(sd_netlink_call_async(rtnl, m, link_handler, ifname, 0, NULL) >= 0); |
1c4baffc TG |
206 | |
207 | assert_se(sd_event_default(&event) >= 0); | |
208 | ||
209 | assert_se(sd_netlink_attach_event(rtnl, event, 0) >= 0); | |
210 | ||
211 | assert_se(sd_event_run(event, 0) >= 0); | |
212 | ||
213 | assert_se(sd_netlink_detach_event(rtnl) >= 0); | |
214 | ||
215 | assert_se((rtnl = sd_netlink_unref(rtnl)) == NULL); | |
216 | } | |
217 | ||
218 | static int pipe_handler(sd_netlink *rtnl, sd_netlink_message *m, void *userdata) { | |
219 | int *counter = userdata; | |
220 | int r; | |
221 | ||
313cefa1 | 222 | (*counter)--; |
1c4baffc TG |
223 | |
224 | r = sd_netlink_message_get_errno(m); | |
225 | ||
226 | log_info_errno(r, "%d left in pipe. got reply: %m", *counter); | |
227 | ||
228 | assert_se(r >= 0); | |
229 | ||
230 | return 1; | |
231 | } | |
232 | ||
233 | static void test_async(int ifindex) { | |
4afd3348 LP |
234 | _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL; |
235 | _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *m = NULL, *r = NULL; | |
1c4baffc TG |
236 | uint32_t serial; |
237 | char *ifname; | |
238 | ||
239 | ifname = strdup("lo"); | |
240 | assert_se(ifname); | |
241 | ||
242 | assert_se(sd_netlink_open(&rtnl) >= 0); | |
243 | ||
244 | assert_se(sd_rtnl_message_new_link(rtnl, &m, RTM_GETLINK, ifindex) >= 0); | |
245 | ||
483d099e | 246 | assert_se(sd_netlink_call_async(rtnl, m, link_handler, ifname, 0, &serial) >= 0); |
1c4baffc TG |
247 | |
248 | assert_se(sd_netlink_wait(rtnl, 0) >= 0); | |
249 | assert_se(sd_netlink_process(rtnl, &r) >= 0); | |
250 | ||
251 | assert_se((rtnl = sd_netlink_unref(rtnl)) == NULL); | |
252 | } | |
253 | ||
254 | static void test_pipe(int ifindex) { | |
4afd3348 LP |
255 | _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL; |
256 | _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *m1 = NULL, *m2 = NULL; | |
1c4baffc TG |
257 | int counter = 0; |
258 | ||
259 | assert_se(sd_netlink_open(&rtnl) >= 0); | |
260 | ||
261 | assert_se(sd_rtnl_message_new_link(rtnl, &m1, RTM_GETLINK, ifindex) >= 0); | |
262 | assert_se(sd_rtnl_message_new_link(rtnl, &m2, RTM_GETLINK, ifindex) >= 0); | |
263 | ||
313cefa1 | 264 | counter++; |
483d099e | 265 | assert_se(sd_netlink_call_async(rtnl, m1, pipe_handler, &counter, 0, NULL) >= 0); |
1c4baffc | 266 | |
313cefa1 | 267 | counter++; |
483d099e | 268 | assert_se(sd_netlink_call_async(rtnl, m2, pipe_handler, &counter, 0, NULL) >= 0); |
1c4baffc TG |
269 | |
270 | while (counter > 0) { | |
271 | assert_se(sd_netlink_wait(rtnl, 0) >= 0); | |
272 | assert_se(sd_netlink_process(rtnl, NULL) >= 0); | |
273 | } | |
274 | ||
275 | assert_se((rtnl = sd_netlink_unref(rtnl)) == NULL); | |
276 | } | |
277 | ||
05d0c2e3 | 278 | static void test_container(sd_netlink *rtnl) { |
4afd3348 | 279 | _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *m = NULL; |
1c4baffc TG |
280 | uint16_t u16_data; |
281 | uint32_t u32_data; | |
282 | const char *string_data; | |
283 | ||
05d0c2e3 | 284 | assert_se(sd_rtnl_message_new_link(rtnl, &m, RTM_NEWLINK, 0) >= 0); |
1c4baffc TG |
285 | |
286 | assert_se(sd_netlink_message_open_container(m, IFLA_LINKINFO) >= 0); | |
287 | assert_se(sd_netlink_message_open_container_union(m, IFLA_INFO_DATA, "vlan") >= 0); | |
288 | assert_se(sd_netlink_message_append_u16(m, IFLA_VLAN_ID, 100) >= 0); | |
289 | assert_se(sd_netlink_message_close_container(m) >= 0); | |
290 | assert_se(sd_netlink_message_append_string(m, IFLA_INFO_KIND, "vlan") >= 0); | |
291 | assert_se(sd_netlink_message_close_container(m) >= 0); | |
292 | assert_se(sd_netlink_message_close_container(m) == -EINVAL); | |
293 | ||
294 | assert_se(sd_netlink_message_rewind(m) >= 0); | |
295 | ||
296 | assert_se(sd_netlink_message_enter_container(m, IFLA_LINKINFO) >= 0); | |
297 | assert_se(sd_netlink_message_read_string(m, IFLA_INFO_KIND, &string_data) >= 0); | |
298 | assert_se(streq("vlan", string_data)); | |
299 | ||
300 | assert_se(sd_netlink_message_enter_container(m, IFLA_INFO_DATA) >= 0); | |
301 | assert_se(sd_netlink_message_read_u16(m, IFLA_VLAN_ID, &u16_data) >= 0); | |
302 | assert_se(sd_netlink_message_exit_container(m) >= 0); | |
303 | ||
304 | assert_se(sd_netlink_message_read_string(m, IFLA_INFO_KIND, &string_data) >= 0); | |
305 | assert_se(streq("vlan", string_data)); | |
306 | assert_se(sd_netlink_message_exit_container(m) >= 0); | |
307 | ||
308 | assert_se(sd_netlink_message_read_u32(m, IFLA_LINKINFO, &u32_data) < 0); | |
309 | ||
310 | assert_se(sd_netlink_message_exit_container(m) == -EINVAL); | |
311 | } | |
312 | ||
313 | static void test_match(void) { | |
4afd3348 | 314 | _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL; |
1c4baffc TG |
315 | |
316 | assert_se(sd_netlink_open(&rtnl) >= 0); | |
317 | ||
483d099e ZJS |
318 | assert_se(sd_netlink_add_match(rtnl, RTM_NEWLINK, link_handler, NULL) >= 0); |
319 | assert_se(sd_netlink_add_match(rtnl, RTM_NEWLINK, link_handler, NULL) >= 0); | |
1c4baffc | 320 | |
483d099e ZJS |
321 | assert_se(sd_netlink_remove_match(rtnl, RTM_NEWLINK, link_handler, NULL) == 1); |
322 | assert_se(sd_netlink_remove_match(rtnl, RTM_NEWLINK, link_handler, NULL) == 1); | |
323 | assert_se(sd_netlink_remove_match(rtnl, RTM_NEWLINK, link_handler, NULL) == 0); | |
1c4baffc TG |
324 | |
325 | assert_se((rtnl = sd_netlink_unref(rtnl)) == NULL); | |
326 | } | |
327 | ||
328 | static void test_get_addresses(sd_netlink *rtnl) { | |
4afd3348 | 329 | _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL, *reply = NULL; |
1c4baffc TG |
330 | sd_netlink_message *m; |
331 | ||
332 | assert_se(sd_rtnl_message_new_addr(rtnl, &req, RTM_GETADDR, 0, AF_UNSPEC) >= 0); | |
333 | ||
334 | assert_se(sd_netlink_call(rtnl, req, 0, &reply) >= 0); | |
335 | ||
336 | for (m = reply; m; m = sd_netlink_message_next(m)) { | |
337 | uint16_t type; | |
338 | unsigned char scope, flags; | |
339 | int family, ifindex; | |
340 | ||
341 | assert_se(sd_netlink_message_get_type(m, &type) >= 0); | |
342 | assert_se(type == RTM_NEWADDR); | |
343 | ||
344 | assert_se(sd_rtnl_message_addr_get_ifindex(m, &ifindex) >= 0); | |
345 | assert_se(sd_rtnl_message_addr_get_family(m, &family) >= 0); | |
346 | assert_se(sd_rtnl_message_addr_get_scope(m, &scope) >= 0); | |
347 | assert_se(sd_rtnl_message_addr_get_flags(m, &flags) >= 0); | |
348 | ||
349 | assert_se(ifindex > 0); | |
945c2931 | 350 | assert_se(IN_SET(family, AF_INET, AF_INET6)); |
1c4baffc TG |
351 | |
352 | log_info("got IPv%u address on ifindex %i", family == AF_INET ? 4: 6, ifindex); | |
353 | } | |
354 | } | |
355 | ||
05d0c2e3 | 356 | static void test_message(sd_netlink *rtnl) { |
4afd3348 | 357 | _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *m = NULL; |
1c4baffc | 358 | |
05d0c2e3 | 359 | assert_se(rtnl_message_new_synthetic_error(rtnl, -ETIMEDOUT, 1, &m) >= 0); |
1c4baffc TG |
360 | assert_se(sd_netlink_message_get_errno(m) == -ETIMEDOUT); |
361 | } | |
362 | ||
363 | int main(void) { | |
364 | sd_netlink *rtnl; | |
365 | sd_netlink_message *m; | |
366 | sd_netlink_message *r; | |
367 | const char *string_data; | |
368 | int if_loopback; | |
369 | uint16_t type; | |
370 | ||
1c4baffc TG |
371 | test_match(); |
372 | ||
373 | test_multiple(); | |
374 | ||
1c4baffc TG |
375 | assert_se(sd_netlink_open(&rtnl) >= 0); |
376 | assert_se(rtnl); | |
377 | ||
05d0c2e3 JT |
378 | test_route(rtnl); |
379 | ||
380 | test_message(rtnl); | |
381 | ||
382 | test_container(rtnl); | |
383 | ||
1c4baffc TG |
384 | if_loopback = (int) if_nametoindex("lo"); |
385 | assert_se(if_loopback > 0); | |
386 | ||
387 | test_async(if_loopback); | |
388 | ||
389 | test_pipe(if_loopback); | |
390 | ||
391 | test_event_loop(if_loopback); | |
392 | ||
393 | test_link_configure(rtnl, if_loopback); | |
394 | ||
395 | test_get_addresses(rtnl); | |
396 | ||
397 | test_message_link_bridge(rtnl); | |
398 | ||
399 | assert_se(sd_rtnl_message_new_link(rtnl, &m, RTM_GETLINK, if_loopback) >= 0); | |
400 | assert_se(m); | |
401 | ||
402 | assert_se(sd_netlink_message_get_type(m, &type) >= 0); | |
403 | assert_se(type == RTM_GETLINK); | |
404 | ||
405 | assert_se(sd_netlink_message_read_string(m, IFLA_IFNAME, &string_data) == -EPERM); | |
406 | ||
407 | assert_se(sd_netlink_call(rtnl, m, 0, &r) == 1); | |
408 | assert_se(sd_netlink_message_get_type(r, &type) >= 0); | |
409 | assert_se(type == RTM_NEWLINK); | |
410 | ||
411 | assert_se((r = sd_netlink_message_unref(r)) == NULL); | |
412 | ||
413 | assert_se(sd_netlink_call(rtnl, m, -1, &r) == -EPERM); | |
414 | assert_se((m = sd_netlink_message_unref(m)) == NULL); | |
415 | assert_se((r = sd_netlink_message_unref(r)) == NULL); | |
416 | ||
417 | test_link_get(rtnl, if_loopback); | |
418 | test_address_get(rtnl, if_loopback); | |
419 | ||
1c4baffc TG |
420 | assert_se((m = sd_netlink_message_unref(m)) == NULL); |
421 | assert_se((r = sd_netlink_message_unref(r)) == NULL); | |
422 | assert_se((rtnl = sd_netlink_unref(rtnl)) == NULL); | |
423 | ||
424 | return EXIT_SUCCESS; | |
425 | } |