1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
|
/***
This file is part of systemd.
Copyright (C) 2014 Intel Corporation. All rights reserved.
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
systemd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include <netinet/icmp6.h>
#include <systemd/sd-ndisc.h>
#include "icmp6-util.h"
#include "basic/socket-util.h"
static struct ether_addr mac_addr = {
.ether_addr_octet = {'A', 'B', 'C', '1', '2', '3'}
};
static bool verbose = false;
static sd_event_source *test_hangcheck;
static int test_fd[2];
typedef int (*send_ra_t)(uint8_t flags);
static send_ra_t send_ra_function;
static int test_rs_hangcheck(sd_event_source *s, uint64_t usec,
void *userdata) {
assert_se(false);
return 0;
}
int icmp6_bind_router_solicitation(int index) {
assert_se(index == 42);
if (socketpair(AF_UNIX, SOCK_DGRAM, 0, test_fd) < 0)
return -errno;
return test_fd[0];
}
static int send_ra(uint8_t flags) {
uint8_t advertisement[] = {
0x86, 0x00, 0xde, 0x83, 0x40, 0xc0, 0x00, 0xb4,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x03, 0x04, 0x40, 0xc0, 0x00, 0x00, 0x01, 0xf4,
0x00, 0x00, 0x01, 0xb8, 0x00, 0x00, 0x00, 0x00,
0x20, 0x01, 0x0d, 0xb8, 0xde, 0xad, 0xbe, 0xef,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x19, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3c,
0x20, 0x01, 0x0d, 0xb8, 0xde, 0xad, 0xbe, 0xef,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
0x1f, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3c,
0x03, 0x6c, 0x61, 0x62, 0x05, 0x69, 0x6e, 0x74,
0x72, 0x61, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x01, 0x01, 0x78, 0x2b, 0xcb, 0xb3, 0x6d, 0x53,
};
advertisement[5] = flags;
assert_se(write(test_fd[1], advertisement, sizeof(advertisement)) ==
sizeof(advertisement));
if (verbose)
printf(" sent RA with flag 0x%02x\n", flags);
return 0;
}
int icmp6_send_router_solicitation(int s, const struct ether_addr *ether_addr) {
return send_ra_function(0);
}
static void test_rs_done(sd_ndisc *nd, uint8_t flags, const struct in6_addr *gateway, unsigned lifetime, int pref, void *userdata) {
sd_event *e = userdata;
static unsigned idx = 0;
uint8_t flags_array[] = {
0,
0,
0,
ND_RA_FLAG_OTHER,
ND_RA_FLAG_MANAGED
};
uint32_t mtu;
assert_se(nd);
assert_se(flags == flags_array[idx]);
idx++;
if (verbose)
printf(" got event 0x%02x\n", flags);
if (idx < ELEMENTSOF(flags_array)) {
send_ra(flags_array[idx]);
return;
}
assert_se(sd_ndisc_get_mtu(nd, &mtu) == -ENOMSG);
sd_event_exit(e, 0);
}
static void test_rs(void) {
sd_event *e;
sd_ndisc *nd;
usec_t time_now = now(clock_boottime_or_monotonic());
if (verbose)
printf("* %s\n", __FUNCTION__);
send_ra_function = send_ra;
assert_se(sd_event_new(&e) >= 0);
assert_se(sd_ndisc_new(&nd) >= 0);
assert_se(nd);
assert_se(sd_ndisc_attach_event(nd, e, 0) >= 0);
assert_se(sd_ndisc_set_index(nd, 42) >= 0);
assert_se(sd_ndisc_set_mac(nd, &mac_addr) >= 0);
assert_se(sd_ndisc_set_callback(nd, test_rs_done, NULL, NULL, NULL, e) >= 0);
assert_se(sd_event_add_time(e, &test_hangcheck, clock_boottime_or_monotonic(),
time_now + 2 *USEC_PER_SEC, 0,
test_rs_hangcheck, NULL) >= 0);
assert_se(sd_ndisc_stop(nd) >= 0);
assert_se(sd_ndisc_router_discovery_start(nd) >= 0);
assert_se(sd_ndisc_stop(nd) >= 0);
assert_se(sd_ndisc_router_discovery_start(nd) >= 0);
sd_event_loop(e);
test_hangcheck = sd_event_source_unref(test_hangcheck);
nd = sd_ndisc_unref(nd);
assert_se(!nd);
close(test_fd[1]);
sd_event_unref(e);
}
int main(int argc, char *argv[]) {
log_set_max_level(LOG_DEBUG);
log_parse_environment();
log_open();
test_rs();
return 0;
}
|
