]>
Commit | Line | Data |
---|---|---|
f20a35cc PF |
1 | /*** |
2 | This file is part of systemd. | |
3 | ||
4 | Copyright (C) 2014 Intel Corporation. All rights reserved. | |
5 | ||
6 | systemd is free software; you can redistribute it and/or modify it | |
7 | under the terms of the GNU Lesser General Public License as published by | |
8 | the Free Software Foundation; either version 2.1 of the License, or | |
9 | (at your option) any later version. | |
10 | ||
11 | systemd is distributed in the hope that it will be useful, but | |
12 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | Lesser General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU Lesser General Public License | |
17 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
18 | ***/ | |
19 | ||
20 | #include <netinet/icmp6.h> | |
1e7a0e21 | 21 | #include <arpa/inet.h> |
f20a35cc | 22 | |
07630cea | 23 | #include "sd-ndisc.h" |
f20a35cc | 24 | |
1e7a0e21 LP |
25 | #include "alloc-util.h" |
26 | #include "hexdecoct.h" | |
940367a0 | 27 | #include "icmp6-util.h" |
07630cea | 28 | #include "socket-util.h" |
1e7a0e21 | 29 | #include "strv.h" |
f20a35cc PF |
30 | |
31 | static struct ether_addr mac_addr = { | |
32 | .ether_addr_octet = {'A', 'B', 'C', '1', '2', '3'} | |
33 | }; | |
34 | ||
35 | static bool verbose = false; | |
36 | static sd_event_source *test_hangcheck; | |
37 | static int test_fd[2]; | |
38 | ||
99af546d PF |
39 | typedef int (*send_ra_t)(uint8_t flags); |
40 | static send_ra_t send_ra_function; | |
41 | ||
1e7a0e21 LP |
42 | static void router_dump(sd_ndisc_router *rt) { |
43 | struct in6_addr addr; | |
44 | char buf[FORMAT_TIMESTAMP_MAX]; | |
45 | uint8_t hop_limit; | |
46 | uint64_t t, flags; | |
47 | uint32_t mtu; | |
48 | uint16_t lifetime; | |
49 | unsigned preference; | |
50 | int r; | |
51 | ||
52 | assert_se(rt); | |
53 | ||
54 | log_info("--"); | |
55 | assert_se(sd_ndisc_router_get_address(rt, &addr) == -ENODATA); | |
56 | ||
57 | assert_se(sd_ndisc_router_get_timestamp(rt, CLOCK_REALTIME, &t) >= 0); | |
58 | log_info("Timestamp: %s", format_timestamp(buf, sizeof(buf), t)); | |
59 | ||
60 | assert_se(sd_ndisc_router_get_timestamp(rt, CLOCK_MONOTONIC, &t) >= 0); | |
61 | log_info("Monotonic: %" PRIu64, t); | |
62 | ||
63 | if (sd_ndisc_router_get_hop_limit(rt, &hop_limit) < 0) | |
64 | log_info("No hop limit set"); | |
65 | else | |
66 | log_info("Hop limit: %u", hop_limit); | |
67 | ||
68 | assert_se(sd_ndisc_router_get_flags(rt, &flags) >= 0); | |
69 | log_info("Flags: <%s|%s>", | |
70 | flags & ND_RA_FLAG_OTHER ? "OTHER" : "", | |
71 | flags & ND_RA_FLAG_MANAGED ? "MANAGED" : ""); | |
72 | ||
73 | assert_se(sd_ndisc_router_get_preference(rt, &preference) >= 0); | |
74 | log_info("Preference: %s", | |
75 | preference == SD_NDISC_PREFERENCE_LOW ? "low" : | |
76 | preference == SD_NDISC_PREFERENCE_HIGH ? "high" : "medium"); | |
77 | ||
78 | assert_se(sd_ndisc_router_get_lifetime(rt, &lifetime) >= 0); | |
79 | log_info("Lifetime: %" PRIu16, lifetime); | |
80 | ||
81 | if (sd_ndisc_router_get_mtu(rt, &mtu) < 0) | |
82 | log_info("No MTU set"); | |
83 | else | |
84 | log_info("MTU: %" PRIu32, mtu); | |
85 | ||
86 | r = sd_ndisc_router_option_rewind(rt); | |
87 | for (;;) { | |
88 | uint8_t type; | |
89 | ||
90 | assert_se(r >= 0); | |
91 | ||
92 | if (r == 0) | |
93 | break; | |
94 | ||
95 | assert_se(sd_ndisc_router_option_get_type(rt, &type) >= 0); | |
96 | ||
97 | log_info(">> Option %u", type); | |
98 | ||
99 | switch (type) { | |
100 | ||
101 | case SD_NDISC_OPTION_SOURCE_LL_ADDRESS: | |
102 | case SD_NDISC_OPTION_TARGET_LL_ADDRESS: { | |
103 | _cleanup_free_ char *c = NULL; | |
104 | const void *p; | |
105 | size_t n; | |
106 | ||
107 | assert_se(sd_ndisc_router_option_get_raw(rt, &p, &n) >= 0); | |
108 | assert_se(n > 2); | |
109 | assert_se(c = hexmem((uint8_t*) p + 2, n - 2)); | |
110 | ||
111 | log_info("Address: %s", c); | |
112 | break; | |
113 | } | |
114 | ||
115 | case SD_NDISC_OPTION_PREFIX_INFORMATION: { | |
116 | uint32_t lifetime_valid, lifetime_preferred; | |
117 | unsigned prefix_len; | |
118 | uint8_t pfl; | |
119 | struct in6_addr a; | |
120 | char buff[INET6_ADDRSTRLEN]; | |
121 | ||
122 | assert_se(sd_ndisc_router_prefix_get_valid_lifetime(rt, &lifetime_valid) >= 0); | |
123 | log_info("Valid Lifetime: %" PRIu32, lifetime_valid); | |
124 | ||
125 | assert_se(sd_ndisc_router_prefix_get_preferred_lifetime(rt, &lifetime_preferred) >= 0); | |
126 | log_info("Preferred Lifetime: %" PRIu32, lifetime_preferred); | |
127 | ||
128 | assert_se(sd_ndisc_router_prefix_get_flags(rt, &pfl) >= 0); | |
129 | log_info("Flags: <%s|%s>", | |
130 | pfl & ND_OPT_PI_FLAG_ONLINK ? "ONLINK" : "", | |
131 | pfl & ND_OPT_PI_FLAG_AUTO ? "AUTO" : ""); | |
132 | ||
133 | assert_se(sd_ndisc_router_prefix_get_prefixlen(rt, &prefix_len) >= 0); | |
134 | log_info("Prefix Length: %u", prefix_len); | |
135 | ||
136 | assert_se(sd_ndisc_router_prefix_get_address(rt, &a) >= 0); | |
137 | log_info("Prefix: %s", inet_ntop(AF_INET6, &a, buff, sizeof(buff))); | |
138 | ||
139 | break; | |
140 | } | |
141 | ||
142 | case SD_NDISC_OPTION_RDNSS: { | |
143 | const struct in6_addr *a; | |
144 | uint32_t lt; | |
145 | int n, i; | |
146 | ||
147 | n = sd_ndisc_router_rdnss_get_addresses(rt, &a); | |
148 | assert_se(n > 0); | |
149 | ||
150 | for (i = 0; i < n; i++) { | |
151 | char buff[INET6_ADDRSTRLEN]; | |
152 | log_info("DNS: %s", inet_ntop(AF_INET6, a + i, buff, sizeof(buff))); | |
153 | } | |
154 | ||
155 | assert_se(sd_ndisc_router_rdnss_get_lifetime(rt, <) >= 0); | |
156 | log_info("Lifetime: %" PRIu32, lt); | |
157 | break; | |
158 | } | |
159 | ||
160 | case SD_NDISC_OPTION_DNSSL: { | |
161 | _cleanup_strv_free_ char **l = NULL; | |
162 | uint32_t lt; | |
163 | int n, i; | |
164 | ||
165 | n = sd_ndisc_router_dnssl_get_domains(rt, &l); | |
166 | assert_se(n > 0); | |
167 | ||
168 | for (i = 0; i < n; i++) | |
169 | log_info("Domain: %s", l[i]); | |
170 | ||
171 | assert_se(sd_ndisc_router_dnssl_get_lifetime(rt, <) >= 0); | |
172 | log_info("Lifetime: %" PRIu32, lt); | |
173 | break; | |
174 | }} | |
175 | ||
176 | r = sd_ndisc_router_option_next(rt); | |
177 | } | |
178 | } | |
179 | ||
f20a35cc PF |
180 | static int test_rs_hangcheck(sd_event_source *s, uint64_t usec, |
181 | void *userdata) { | |
787784c4 | 182 | assert_se(false); |
f20a35cc PF |
183 | |
184 | return 0; | |
185 | } | |
186 | ||
940367a0 | 187 | int icmp6_bind_router_solicitation(int index) { |
787784c4 | 188 | assert_se(index == 42); |
f20a35cc PF |
189 | |
190 | if (socketpair(AF_UNIX, SOCK_DGRAM, 0, test_fd) < 0) | |
191 | return -errno; | |
192 | ||
193 | return test_fd[0]; | |
194 | } | |
195 | ||
196 | static int send_ra(uint8_t flags) { | |
197 | uint8_t advertisement[] = { | |
198 | 0x86, 0x00, 0xde, 0x83, 0x40, 0xc0, 0x00, 0xb4, | |
199 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
200 | 0x03, 0x04, 0x40, 0xc0, 0x00, 0x00, 0x01, 0xf4, | |
201 | 0x00, 0x00, 0x01, 0xb8, 0x00, 0x00, 0x00, 0x00, | |
202 | 0x20, 0x01, 0x0d, 0xb8, 0xde, 0xad, 0xbe, 0xef, | |
203 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
204 | 0x19, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3c, | |
205 | 0x20, 0x01, 0x0d, 0xb8, 0xde, 0xad, 0xbe, 0xef, | |
206 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, | |
207 | 0x1f, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3c, | |
208 | 0x03, 0x6c, 0x61, 0x62, 0x05, 0x69, 0x6e, 0x74, | |
209 | 0x72, 0x61, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
210 | 0x01, 0x01, 0x78, 0x2b, 0xcb, 0xb3, 0x6d, 0x53, | |
211 | }; | |
212 | ||
213 | advertisement[5] = flags; | |
214 | ||
787784c4 | 215 | assert_se(write(test_fd[1], advertisement, sizeof(advertisement)) == |
f20a35cc PF |
216 | sizeof(advertisement)); |
217 | ||
218 | if (verbose) | |
219 | printf(" sent RA with flag 0x%02x\n", flags); | |
220 | ||
221 | return 0; | |
222 | } | |
223 | ||
940367a0 | 224 | int icmp6_send_router_solicitation(int s, const struct ether_addr *ether_addr) { |
99af546d | 225 | return send_ra_function(0); |
f20a35cc PF |
226 | } |
227 | ||
1e7a0e21 | 228 | static void test_callback(sd_ndisc *nd, sd_ndisc_event event, sd_ndisc_router *rt, void *userdata) { |
f20a35cc | 229 | sd_event *e = userdata; |
cb53894d | 230 | static unsigned idx = 0; |
1e7a0e21 | 231 | uint64_t flags_array[] = { |
9d96e6c3 TG |
232 | 0, |
233 | 0, | |
234 | 0, | |
235 | ND_RA_FLAG_OTHER, | |
236 | ND_RA_FLAG_MANAGED | |
f20a35cc | 237 | }; |
1e7a0e21 | 238 | uint64_t flags; |
8d7f2c6a PF |
239 | uint32_t mtu; |
240 | ||
787784c4 | 241 | assert_se(nd); |
f20a35cc | 242 | |
1e7a0e21 LP |
243 | if (event != SD_NDISC_EVENT_ROUTER) |
244 | return; | |
245 | ||
246 | router_dump(rt); | |
247 | ||
248 | assert_se(sd_ndisc_router_get_flags(rt, &flags) >= 0); | |
9d96e6c3 | 249 | assert_se(flags == flags_array[idx]); |
f20a35cc PF |
250 | idx++; |
251 | ||
252 | if (verbose) | |
1e7a0e21 | 253 | printf(" got event 0x%02" PRIx64 "\n", flags); |
f20a35cc | 254 | |
9d96e6c3 TG |
255 | if (idx < ELEMENTSOF(flags_array)) { |
256 | send_ra(flags_array[idx]); | |
8d7f2c6a PF |
257 | return; |
258 | } | |
259 | ||
1e7a0e21 | 260 | assert_se(sd_ndisc_get_mtu(nd, &mtu) == -ENODATA); |
8d7f2c6a PF |
261 | |
262 | sd_event_exit(e, 0); | |
f20a35cc PF |
263 | } |
264 | ||
99af546d PF |
265 | static void test_rs(void) { |
266 | sd_event *e; | |
4d7b83da | 267 | sd_ndisc *nd; |
99af546d | 268 | usec_t time_now = now(clock_boottime_or_monotonic()); |
f20a35cc PF |
269 | |
270 | if (verbose) | |
271 | printf("* %s\n", __FUNCTION__); | |
272 | ||
99af546d PF |
273 | send_ra_function = send_ra; |
274 | ||
275 | assert_se(sd_event_new(&e) >= 0); | |
276 | ||
4d7b83da | 277 | assert_se(sd_ndisc_new(&nd) >= 0); |
787784c4 | 278 | assert_se(nd); |
f20a35cc | 279 | |
4d7b83da | 280 | assert_se(sd_ndisc_attach_event(nd, e, 0) >= 0); |
f20a35cc | 281 | |
2f8e7633 | 282 | assert_se(sd_ndisc_set_ifindex(nd, 42) >= 0); |
4d7b83da | 283 | assert_se(sd_ndisc_set_mac(nd, &mac_addr) >= 0); |
1e7a0e21 | 284 | assert_se(sd_ndisc_set_callback(nd, test_callback, e) >= 0); |
f20a35cc | 285 | |
787784c4 | 286 | assert_se(sd_event_add_time(e, &test_hangcheck, clock_boottime_or_monotonic(), |
f20a35cc PF |
287 | time_now + 2 *USEC_PER_SEC, 0, |
288 | test_rs_hangcheck, NULL) >= 0); | |
289 | ||
4d7b83da | 290 | assert_se(sd_ndisc_stop(nd) >= 0); |
1e7a0e21 | 291 | assert_se(sd_ndisc_start(nd) >= 0); |
4d7b83da | 292 | assert_se(sd_ndisc_stop(nd) >= 0); |
836cf090 | 293 | |
1e7a0e21 | 294 | assert_se(sd_ndisc_start(nd) >= 0); |
f20a35cc PF |
295 | |
296 | sd_event_loop(e); | |
297 | ||
298 | test_hangcheck = sd_event_source_unref(test_hangcheck); | |
299 | ||
4d7b83da | 300 | nd = sd_ndisc_unref(nd); |
787784c4 | 301 | assert_se(!nd); |
f20a35cc | 302 | |
f20a35cc | 303 | close(test_fd[1]); |
99af546d PF |
304 | |
305 | sd_event_unref(e); | |
f20a35cc PF |
306 | } |
307 | ||
308 | int main(int argc, char *argv[]) { | |
f20a35cc PF |
309 | |
310 | log_set_max_level(LOG_DEBUG); | |
311 | log_parse_environment(); | |
312 | log_open(); | |
313 | ||
99af546d | 314 | test_rs(); |
f20a35cc PF |
315 | |
316 | return 0; | |
317 | } |