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1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2013 Tom Gundersen <teg@jklm.no> | |
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 | ||
a33dece5 | 22 | #include <linux/rtnetlink.h> |
65f568bb TG |
23 | #include <netinet/ether.h> |
24 | ||
25 | #include "util.h" | |
26 | #include "macro.h" | |
27 | #include "sd-rtnl.h" | |
28 | #include "socket-util.h" | |
a33dece5 | 29 | #include "rtnl-util.h" |
65f568bb TG |
30 | |
31 | static void test_link_configure(sd_rtnl *rtnl, int ifindex) { | |
32 | _cleanup_sd_rtnl_message_unref_ sd_rtnl_message *message; | |
dabfa9d1 | 33 | uint16_t type; |
65f568bb TG |
34 | const char *mac = "98:fe:94:3f:c6:18", *name = "test"; |
35 | unsigned int mtu = 1450; | |
36 | void *data; | |
37 | ||
38 | /* we'd really like to test NEWLINK, but let's not mess with the running kernel */ | |
39 | assert(sd_rtnl_message_link_new(RTM_GETLINK, ifindex, 0, 0, &message) >= 0); | |
40 | assert(sd_rtnl_message_append(message, IFLA_IFNAME, name) >= 0); | |
41 | assert(sd_rtnl_message_append(message, IFLA_ADDRESS, ether_aton(mac)) >= 0); | |
42 | assert(sd_rtnl_message_append(message, IFLA_MTU, &mtu) >= 0); | |
43 | ||
44 | assert(sd_rtnl_message_read(message, &type, &data) >= 0); | |
45 | assert(type == IFLA_IFNAME); | |
46 | assert(streq(name, (char *) data)); | |
47 | ||
48 | assert(sd_rtnl_message_read(message, &type, &data) >= 0); | |
49 | assert(type == IFLA_ADDRESS); | |
50 | assert(streq(mac, ether_ntoa(data))); | |
51 | ||
52 | assert(sd_rtnl_message_read(message, &type, &data) >= 0); | |
53 | assert(type == IFLA_MTU); | |
54 | assert(mtu == *(unsigned int *) data); | |
55 | ||
4555ec72 | 56 | assert(sd_rtnl_call(rtnl, message, 0, NULL) == 1); |
d4bbdb77 TG |
57 | } |
58 | ||
03d7e632 TG |
59 | static void test_route(void) { |
60 | _cleanup_sd_rtnl_message_unref_ sd_rtnl_message *req; | |
61 | uint32_t addr = htonl(INADDR_LOOPBACK); | |
62 | uint32_t index = 2; | |
63 | uint16_t type; | |
64 | void *data; | |
65 | int r; | |
66 | ||
67 | r = sd_rtnl_message_route_new(RTM_NEWROUTE, AF_INET, 0, 0, 0, | |
68 | RT_TABLE_MAIN, RT_SCOPE_UNIVERSE, RTPROT_BOOT, | |
69 | RTN_UNICAST, 0, &req); | |
70 | if (r < 0) { | |
71 | log_error("Could not create RTM_NEWROUTE message: %s", strerror(-r)); | |
72 | return; | |
73 | } | |
74 | ||
75 | r = sd_rtnl_message_append(req, RTA_GATEWAY, &addr); | |
76 | if (r < 0) { | |
77 | log_error("Could not append RTA_GATEWAY attribute: %s", strerror(-r)); | |
78 | return; | |
79 | } | |
80 | ||
81 | r = sd_rtnl_message_append(req, RTA_OIF, &index); | |
82 | if (r < 0) { | |
83 | log_error("Could not append RTA_OIF attribute: %s", strerror(-r)); | |
84 | return; | |
85 | } | |
86 | ||
87 | assert(sd_rtnl_message_read(req, &type, &data) > 0); | |
88 | assert(type == RTA_GATEWAY); | |
89 | assert(*(uint32_t *) data == addr); | |
90 | ||
91 | assert(sd_rtnl_message_read(req, &type, &data) > 0); | |
92 | assert(type == RTA_OIF); | |
93 | assert(*(uint32_t *) data == index); | |
94 | } | |
95 | ||
d4bbdb77 TG |
96 | static void test_multiple(void) { |
97 | sd_rtnl *rtnl1, *rtnl2; | |
98 | ||
99 | assert(sd_rtnl_open(0, &rtnl1) >= 0); | |
100 | assert(sd_rtnl_open(0, &rtnl2) >= 0); | |
101 | ||
102 | rtnl1 = sd_rtnl_unref(rtnl1); | |
103 | rtnl2 = sd_rtnl_unref(rtnl2); | |
65f568bb TG |
104 | } |
105 | ||
e16bcf98 TG |
106 | static int link_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) { |
107 | void *data; | |
108 | uint16_t type; | |
109 | char *ifname = userdata; | |
110 | ||
111 | assert(rtnl); | |
112 | assert(m); | |
113 | ||
114 | log_info("got link info about %s", ifname); | |
115 | free(ifname); | |
116 | ||
117 | while (sd_rtnl_message_read(m, &type, &data) > 0) { | |
118 | switch (type) { | |
119 | // case IFLA_MTU: | |
120 | // assert(*(unsigned int *) data == 65536); | |
121 | // break; | |
122 | // case IFLA_QDISC: | |
123 | // assert(streq((char *) data, "noqueue")); | |
124 | // break; | |
125 | case IFLA_IFNAME: | |
126 | assert(streq((char *) data, "lo")); | |
127 | break; | |
128 | } | |
129 | } | |
130 | ||
131 | return 1; | |
132 | } | |
133 | ||
134 | static int pipe_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) { | |
135 | int *counter = userdata; | |
136 | ||
137 | (*counter) --; | |
138 | ||
139 | log_info("got reply, %d left in pipe", *counter); | |
140 | ||
141 | return sd_rtnl_message_get_errno(m); | |
142 | } | |
143 | ||
144 | static void test_async(void) { | |
145 | _cleanup_sd_rtnl_unref_ sd_rtnl *rtnl = NULL; | |
146 | _cleanup_sd_rtnl_message_unref_ sd_rtnl_message *m = NULL, *r = NULL; | |
147 | int if_loopback; | |
148 | uint32_t serial; | |
149 | char *ifname; | |
150 | ||
151 | ifname = strdup("lo"); | |
152 | ||
153 | assert(sd_rtnl_open(0, &rtnl) >= 0); | |
154 | ||
155 | if_loopback = (int) if_nametoindex("lo"); | |
156 | assert(if_loopback > 0); | |
157 | ||
158 | assert(sd_rtnl_message_link_new(RTM_GETLINK, if_loopback, 0, 0, &m) >= 0); | |
159 | ||
160 | assert(sd_rtnl_call_async(rtnl, m, &link_handler, ifname, 0, &serial) >= 0); | |
161 | ||
162 | assert(sd_rtnl_wait(rtnl, 0) >= 0); | |
163 | assert(sd_rtnl_process(rtnl, &r) >= 0); | |
164 | } | |
165 | ||
166 | static void test_pipe(void) { | |
167 | _cleanup_sd_rtnl_unref_ sd_rtnl *rtnl = NULL; | |
168 | _cleanup_sd_rtnl_message_unref_ sd_rtnl_message *m1 = NULL, *m2 = NULL; | |
169 | int counter = 0; | |
170 | int if_loopback; | |
171 | ||
172 | assert(sd_rtnl_open(0, &rtnl) >= 0); | |
173 | ||
174 | if_loopback = (int) if_nametoindex("lo"); | |
175 | assert(if_loopback > 0); | |
176 | ||
177 | assert(sd_rtnl_message_link_new(RTM_GETLINK, if_loopback, 0, 0, &m1) >= 0); | |
178 | assert(sd_rtnl_message_link_new(RTM_GETLINK, if_loopback, 0, 0, &m2) >= 0); | |
179 | ||
180 | counter ++; | |
181 | assert(sd_rtnl_call_async(rtnl, m1, &pipe_handler, &counter, 0, NULL) >= 0); | |
182 | ||
183 | counter ++; | |
184 | assert(sd_rtnl_call_async(rtnl, m2, &pipe_handler, &counter, 0, NULL) >= 0); | |
185 | ||
186 | while (counter > 0) { | |
187 | assert(sd_rtnl_wait(rtnl, 0) >= 0); | |
188 | assert(sd_rtnl_process(rtnl, NULL) >= 0); | |
189 | } | |
190 | } | |
191 | ||
65f568bb TG |
192 | int main(void) { |
193 | sd_rtnl *rtnl; | |
194 | sd_rtnl_message *m; | |
195 | sd_rtnl_message *r; | |
196 | void *data; | |
197 | int if_loopback; | |
dabfa9d1 | 198 | uint16_t type; |
65f568bb TG |
199 | unsigned int mtu = 0; |
200 | unsigned int *mtu_reply; | |
201 | ||
d4bbdb77 TG |
202 | test_multiple(); |
203 | ||
03d7e632 TG |
204 | test_route(); |
205 | ||
e16bcf98 TG |
206 | test_async(); |
207 | ||
208 | test_pipe(); | |
209 | ||
65f568bb TG |
210 | assert(sd_rtnl_open(0, &rtnl) >= 0); |
211 | assert(rtnl); | |
212 | ||
213 | if_loopback = (int) if_nametoindex("lo"); | |
214 | assert(if_loopback > 0); | |
215 | ||
216 | test_link_configure(rtnl, if_loopback); | |
217 | ||
218 | assert(sd_rtnl_message_link_new(RTM_GETLINK, if_loopback, 0, 0, &m) >= 0); | |
219 | assert(m); | |
220 | ||
221 | assert(sd_rtnl_message_get_type(m, &type) >= 0); | |
222 | assert(type == RTM_GETLINK); | |
223 | ||
224 | assert(sd_rtnl_message_read(m, &type, &data) == 0); | |
225 | ||
4555ec72 | 226 | assert(sd_rtnl_call(rtnl, m, 0, &r) == 1); |
65f568bb TG |
227 | assert(sd_rtnl_message_get_type(r, &type) >= 0); |
228 | assert(type == RTM_NEWLINK); | |
229 | ||
8e1519bd | 230 | assert(sd_rtnl_message_read(m, &type, &data) == 0); |
65f568bb TG |
231 | assert((r = sd_rtnl_message_unref(r)) == NULL); |
232 | ||
fe4824e0 | 233 | assert(sd_rtnl_call(rtnl, m, -1, &r) == -EPERM); |
65f568bb TG |
234 | assert((m = sd_rtnl_message_unref(m)) == NULL); |
235 | assert((r = sd_rtnl_message_unref(r)) == NULL); | |
236 | ||
237 | assert(sd_rtnl_message_link_new(RTM_GETLINK, if_loopback, 0, 0, &m) >= 0); | |
238 | assert(m); | |
239 | ||
240 | assert(sd_rtnl_message_append(m, IFLA_MTU, &mtu) >= 0); | |
241 | assert(sd_rtnl_message_read(m, &type, (void **) &mtu_reply) == 1); | |
242 | ||
243 | assert(type == IFLA_MTU); | |
244 | assert(*mtu_reply == 0); | |
245 | ||
8e1519bd | 246 | assert(sd_rtnl_message_read(m, &type, &data) == 0); |
65f568bb | 247 | |
4555ec72 | 248 | assert(sd_rtnl_call(rtnl, m, -1, &r) == 1); |
03d7e632 | 249 | while (sd_rtnl_message_read(r, &type, &data) > 0) { |
65f568bb | 250 | switch (type) { |
eab97a46 TG |
251 | // case IFLA_MTU: |
252 | // assert(*(unsigned int *) data == 65536); | |
03d7e632 | 253 | // break; |
eab97a46 TG |
254 | // case IFLA_QDISC: |
255 | // assert(streq((char *) data, "noqueue")); | |
03d7e632 | 256 | // break; |
65f568bb TG |
257 | case IFLA_IFNAME: |
258 | assert(streq((char *) data, "lo")); | |
03d7e632 | 259 | break; |
65f568bb TG |
260 | } |
261 | } | |
262 | ||
263 | assert((m = sd_rtnl_message_unref(m)) == NULL); | |
264 | assert((r = sd_rtnl_message_unref(r)) == NULL); | |
265 | assert((rtnl = sd_rtnl_unref(rtnl)) == NULL); | |
266 | ||
267 | return EXIT_SUCCESS; | |
268 | } |