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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 (C) 2014 Intel Corporation. All rights reserved. | |
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 | ||
22 | #include <netinet/icmp6.h> | |
23 | ||
24 | #include "socket-util.h" | |
25 | ||
26 | #include "dhcp6-internal.h" | |
27 | #include "sd-icmp6-nd.h" | |
28 | ||
29 | static struct ether_addr mac_addr = { | |
30 | .ether_addr_octet = {'A', 'B', 'C', '1', '2', '3'} | |
31 | }; | |
32 | ||
33 | static bool verbose = false; | |
34 | static sd_event_source *test_hangcheck; | |
35 | static int test_fd[2]; | |
36 | ||
37 | static int test_rs_hangcheck(sd_event_source *s, uint64_t usec, | |
38 | void *userdata) { | |
787784c4 | 39 | assert_se(false); |
f20a35cc PF |
40 | |
41 | return 0; | |
42 | } | |
43 | ||
44 | int dhcp_network_icmp6_bind_router_solicitation(int index) { | |
787784c4 | 45 | assert_se(index == 42); |
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46 | |
47 | if (socketpair(AF_UNIX, SOCK_DGRAM, 0, test_fd) < 0) | |
48 | return -errno; | |
49 | ||
50 | return test_fd[0]; | |
51 | } | |
52 | ||
53 | static int send_ra(uint8_t flags) { | |
54 | uint8_t advertisement[] = { | |
55 | 0x86, 0x00, 0xde, 0x83, 0x40, 0xc0, 0x00, 0xb4, | |
56 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
57 | 0x03, 0x04, 0x40, 0xc0, 0x00, 0x00, 0x01, 0xf4, | |
58 | 0x00, 0x00, 0x01, 0xb8, 0x00, 0x00, 0x00, 0x00, | |
59 | 0x20, 0x01, 0x0d, 0xb8, 0xde, 0xad, 0xbe, 0xef, | |
60 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
61 | 0x19, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3c, | |
62 | 0x20, 0x01, 0x0d, 0xb8, 0xde, 0xad, 0xbe, 0xef, | |
63 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, | |
64 | 0x1f, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3c, | |
65 | 0x03, 0x6c, 0x61, 0x62, 0x05, 0x69, 0x6e, 0x74, | |
66 | 0x72, 0x61, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
67 | 0x01, 0x01, 0x78, 0x2b, 0xcb, 0xb3, 0x6d, 0x53, | |
68 | }; | |
69 | ||
70 | advertisement[5] = flags; | |
71 | ||
787784c4 | 72 | assert_se(write(test_fd[1], advertisement, sizeof(advertisement)) == |
f20a35cc PF |
73 | sizeof(advertisement)); |
74 | ||
75 | if (verbose) | |
76 | printf(" sent RA with flag 0x%02x\n", flags); | |
77 | ||
78 | return 0; | |
79 | } | |
80 | ||
81 | int dhcp_network_icmp6_send_router_solicitation(int s, const struct ether_addr *ether_addr) { | |
82 | return send_ra(0); | |
83 | } | |
84 | ||
85 | static void test_rs_done(sd_icmp6_nd *nd, int event, void *userdata) { | |
86 | sd_event *e = userdata; | |
87 | static int idx = 0; | |
88 | struct { | |
89 | uint8_t flag; | |
90 | int event; | |
91 | } flag_event[] = { | |
92 | { 0, ICMP6_EVENT_ROUTER_ADVERTISMENT_NONE }, | |
93 | { ND_RA_FLAG_OTHER, ICMP6_EVENT_ROUTER_ADVERTISMENT_OTHER }, | |
94 | { ND_RA_FLAG_MANAGED, ICMP6_EVENT_ROUTER_ADVERTISMENT_MANAGED } | |
95 | }; | |
787784c4 | 96 | assert_se(nd); |
f20a35cc | 97 | |
787784c4 | 98 | assert_se(event == flag_event[idx].event); |
f20a35cc PF |
99 | idx++; |
100 | ||
101 | if (verbose) | |
102 | printf(" got event %d\n", event); | |
103 | ||
104 | if (idx < 3) | |
105 | send_ra(flag_event[idx].flag); | |
106 | else | |
107 | sd_event_exit(e, 0); | |
108 | } | |
109 | ||
110 | static void test_rs(sd_event *e) { | |
fa94c34b | 111 | usec_t time_now = now(clock_boottime_or_monotonic()); |
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112 | sd_icmp6_nd *nd; |
113 | ||
114 | if (verbose) | |
115 | printf("* %s\n", __FUNCTION__); | |
116 | ||
787784c4 RC |
117 | assert_se(sd_icmp6_nd_new(&nd) >= 0); |
118 | assert_se(nd); | |
f20a35cc | 119 | |
787784c4 | 120 | assert_se(sd_icmp6_nd_attach_event(nd, e, 0) >= 0); |
f20a35cc | 121 | |
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122 | assert_se(sd_icmp6_nd_set_index(nd, 42) >= 0); |
123 | assert_se(sd_icmp6_nd_set_mac(nd, &mac_addr) >= 0); | |
124 | assert_se(sd_icmp6_nd_set_callback(nd, test_rs_done, e) >= 0); | |
f20a35cc | 125 | |
787784c4 | 126 | assert_se(sd_event_add_time(e, &test_hangcheck, clock_boottime_or_monotonic(), |
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127 | time_now + 2 *USEC_PER_SEC, 0, |
128 | test_rs_hangcheck, NULL) >= 0); | |
129 | ||
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130 | assert_se(sd_icmp6_nd_stop(nd) >= 0); |
131 | assert_se(sd_icmp6_router_solicitation_start(nd) >= 0); | |
132 | assert_se(sd_icmp6_nd_stop(nd) >= 0); | |
836cf090 | 133 | |
787784c4 | 134 | assert_se(sd_icmp6_router_solicitation_start(nd) >= 0); |
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135 | |
136 | sd_event_loop(e); | |
137 | ||
138 | test_hangcheck = sd_event_source_unref(test_hangcheck); | |
139 | ||
140 | nd = sd_icmp6_nd_unref(nd); | |
787784c4 | 141 | assert_se(!nd); |
f20a35cc | 142 | |
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143 | close(test_fd[1]); |
144 | } | |
145 | ||
146 | int main(int argc, char *argv[]) { | |
147 | sd_event *e; | |
148 | ||
787784c4 | 149 | assert_se(sd_event_new(&e) >= 0); |
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150 | |
151 | log_set_max_level(LOG_DEBUG); | |
152 | log_parse_environment(); | |
153 | log_open(); | |
154 | ||
155 | test_rs(e); | |
156 | ||
157 | return 0; | |
158 | } |