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db9ecf05 | 1 | /* SPDX-License-Identifier: LGPL-2.1-or-later */ |
b44cd882 | 2 | /*** |
810adae9 | 3 | Copyright © 2013 Intel Corporation. All rights reserved. |
b44cd882 TG |
4 | ***/ |
5 | ||
b44cd882 | 6 | #include <errno.h> |
ddb82ec2 | 7 | #include <net/if_arp.h> |
b44cd882 | 8 | |
07630cea | 9 | #include "sd-dhcp-server.h" |
b44cd882 | 10 | #include "sd-event.h" |
b44cd882 | 11 | |
b44cd882 | 12 | #include "dhcp-server-internal.h" |
317bb217 | 13 | #include "tests.h" |
b44cd882 | 14 | |
99634696 | 15 | static void test_pool(struct in_addr *address, unsigned size, int ret) { |
4afd3348 | 16 | _cleanup_(sd_dhcp_server_unrefp) sd_dhcp_server *server = NULL; |
99634696 TG |
17 | |
18 | assert_se(sd_dhcp_server_new(&server, 1) >= 0); | |
19 | ||
20 | assert_se(sd_dhcp_server_configure_pool(server, address, 8, 0, size) == ret); | |
21 | } | |
22 | ||
6f08fb7b | 23 | static int test_basic(sd_event *event) { |
4afd3348 | 24 | _cleanup_(sd_dhcp_server_unrefp) sd_dhcp_server *server = NULL; |
20af7091 | 25 | struct in_addr address_lo = { |
d7a0f1f4 | 26 | .s_addr = htobe32(INADDR_LOOPBACK), |
20af7091 TG |
27 | }; |
28 | struct in_addr address_any = { | |
d7a0f1f4 | 29 | .s_addr = htobe32(INADDR_ANY), |
20af7091 | 30 | }; |
6f08fb7b | 31 | int r; |
b44cd882 | 32 | |
3a864fe4 TG |
33 | /* attach to loopback interface */ |
34 | assert_se(sd_dhcp_server_new(&server, 1) >= 0); | |
b44cd882 TG |
35 | assert_se(server); |
36 | ||
37 | assert_se(sd_dhcp_server_attach_event(server, event, 0) >= 0); | |
38 | assert_se(sd_dhcp_server_attach_event(server, event, 0) == -EBUSY); | |
39 | assert_se(sd_dhcp_server_get_event(server) == event); | |
40 | assert_se(sd_dhcp_server_detach_event(server) >= 0); | |
41 | assert_se(!sd_dhcp_server_get_event(server)); | |
42 | assert_se(sd_dhcp_server_attach_event(server, NULL, 0) >= 0); | |
43 | assert_se(sd_dhcp_server_attach_event(server, NULL, 0) == -EBUSY); | |
44 | ||
45 | assert_se(sd_dhcp_server_ref(server) == server); | |
46 | assert_se(!sd_dhcp_server_unref(server)); | |
ff734080 | 47 | |
20af7091 | 48 | assert_se(sd_dhcp_server_start(server) == -EUNATCH); |
20af7091 | 49 | |
99634696 TG |
50 | assert_se(sd_dhcp_server_configure_pool(server, &address_any, 28, 0, 0) == -EINVAL); |
51 | assert_se(sd_dhcp_server_configure_pool(server, &address_lo, 38, 0, 0) == -ERANGE); | |
52 | assert_se(sd_dhcp_server_configure_pool(server, &address_lo, 8, 0, 0) >= 0); | |
45a9eac9 | 53 | assert_se(sd_dhcp_server_configure_pool(server, &address_lo, 8, 0, 0) >= 0); |
99634696 TG |
54 | |
55 | test_pool(&address_any, 1, -EINVAL); | |
56 | test_pool(&address_lo, 1, 0); | |
2dead812 | 57 | |
6f08fb7b | 58 | r = sd_dhcp_server_start(server); |
6f08fb7b | 59 | if (r == -EPERM) |
08d541ca | 60 | return log_info_errno(r, "sd_dhcp_server_start failed: %m"); |
6f08fb7b TG |
61 | assert_se(r >= 0); |
62 | ||
ff734080 TG |
63 | assert_se(sd_dhcp_server_start(server) == -EBUSY); |
64 | assert_se(sd_dhcp_server_stop(server) >= 0); | |
65 | assert_se(sd_dhcp_server_stop(server) >= 0); | |
66 | assert_se(sd_dhcp_server_start(server) >= 0); | |
6f08fb7b TG |
67 | |
68 | return 0; | |
b44cd882 TG |
69 | } |
70 | ||
be077570 | 71 | static void test_message_handler(void) { |
4afd3348 | 72 | _cleanup_(sd_dhcp_server_unrefp) sd_dhcp_server *server = NULL; |
be077570 TG |
73 | struct { |
74 | DHCPMessage message; | |
75 | struct { | |
76 | uint8_t code; | |
77 | uint8_t length; | |
78 | uint8_t type; | |
79 | } _packed_ option_type; | |
2dead812 TG |
80 | struct { |
81 | uint8_t code; | |
82 | uint8_t length; | |
83 | be32_t address; | |
84 | } _packed_ option_requested_ip; | |
85 | struct { | |
86 | uint8_t code; | |
87 | uint8_t length; | |
88 | be32_t address; | |
89 | } _packed_ option_server_id; | |
87322b3a TG |
90 | struct { |
91 | uint8_t code; | |
92 | uint8_t length; | |
93 | uint8_t id[7]; | |
94 | } _packed_ option_client_id; | |
be077570 TG |
95 | uint8_t end; |
96 | } _packed_ test = { | |
97 | .message.op = BOOTREQUEST, | |
98 | .message.htype = ARPHRD_ETHER, | |
99 | .message.hlen = ETHER_ADDR_LEN, | |
2dead812 TG |
100 | .message.xid = htobe32(0x12345678), |
101 | .message.chaddr = { 'A', 'B', 'C', 'D', 'E', 'F' }, | |
22805d92 | 102 | .option_type.code = SD_DHCP_OPTION_MESSAGE_TYPE, |
be077570 TG |
103 | .option_type.length = 1, |
104 | .option_type.type = DHCP_DISCOVER, | |
22805d92 | 105 | .end = SD_DHCP_OPTION_END, |
be077570 | 106 | }; |
20af7091 | 107 | struct in_addr address_lo = { |
d7a0f1f4 | 108 | .s_addr = htobe32(INADDR_LOOPBACK), |
20af7091 | 109 | }; |
be077570 TG |
110 | |
111 | assert_se(sd_dhcp_server_new(&server, 1) >= 0); | |
99634696 | 112 | assert_se(sd_dhcp_server_configure_pool(server, &address_lo, 8, 0, 0) >= 0); |
20af7091 TG |
113 | assert_se(sd_dhcp_server_attach_event(server, NULL, 0) >= 0); |
114 | assert_se(sd_dhcp_server_start(server) >= 0); | |
be077570 | 115 | |
4dc35568 | 116 | assert_se(dhcp_server_handle_message(server, (DHCPMessage*)&test, sizeof(test)) == DHCP_OFFER); |
be077570 TG |
117 | |
118 | test.end = 0; | |
119 | /* TODO, shouldn't this fail? */ | |
4dc35568 | 120 | assert_se(dhcp_server_handle_message(server, (DHCPMessage*)&test, sizeof(test)) == DHCP_OFFER); |
22805d92 | 121 | test.end = SD_DHCP_OPTION_END; |
4dc35568 | 122 | assert_se(dhcp_server_handle_message(server, (DHCPMessage*)&test, sizeof(test)) == DHCP_OFFER); |
be077570 TG |
123 | |
124 | test.option_type.code = 0; | |
125 | test.option_type.length = 0; | |
126 | test.option_type.type = 0; | |
127 | assert_se(dhcp_server_handle_message(server, (DHCPMessage*)&test, sizeof(test)) == 0); | |
22805d92 | 128 | test.option_type.code = SD_DHCP_OPTION_MESSAGE_TYPE; |
be077570 TG |
129 | test.option_type.length = 1; |
130 | test.option_type.type = DHCP_DISCOVER; | |
4dc35568 | 131 | assert_se(dhcp_server_handle_message(server, (DHCPMessage*)&test, sizeof(test)) == DHCP_OFFER); |
be077570 TG |
132 | |
133 | test.message.op = 0; | |
134 | assert_se(dhcp_server_handle_message(server, (DHCPMessage*)&test, sizeof(test)) == 0); | |
135 | test.message.op = BOOTREQUEST; | |
4dc35568 | 136 | assert_se(dhcp_server_handle_message(server, (DHCPMessage*)&test, sizeof(test)) == DHCP_OFFER); |
be077570 TG |
137 | |
138 | test.message.htype = 0; | |
139 | assert_se(dhcp_server_handle_message(server, (DHCPMessage*)&test, sizeof(test)) == 0); | |
140 | test.message.htype = ARPHRD_ETHER; | |
4dc35568 | 141 | assert_se(dhcp_server_handle_message(server, (DHCPMessage*)&test, sizeof(test)) == DHCP_OFFER); |
be077570 TG |
142 | |
143 | test.message.hlen = 0; | |
144 | assert_se(dhcp_server_handle_message(server, (DHCPMessage*)&test, sizeof(test)) == 0); | |
145 | test.message.hlen = ETHER_ADDR_LEN; | |
4dc35568 | 146 | assert_se(dhcp_server_handle_message(server, (DHCPMessage*)&test, sizeof(test)) == DHCP_OFFER); |
2dead812 TG |
147 | |
148 | test.option_type.type = DHCP_REQUEST; | |
149 | assert_se(dhcp_server_handle_message(server, (DHCPMessage*)&test, sizeof(test)) == 0); | |
22805d92 | 150 | test.option_requested_ip.code = SD_DHCP_OPTION_REQUESTED_IP_ADDRESS; |
2dead812 TG |
151 | test.option_requested_ip.length = 4; |
152 | test.option_requested_ip.address = htobe32(0x12345678); | |
bd57b450 | 153 | assert_se(dhcp_server_handle_message(server, (DHCPMessage*)&test, sizeof(test)) == DHCP_NAK); |
22805d92 | 154 | test.option_server_id.code = SD_DHCP_OPTION_SERVER_IDENTIFIER; |
2dead812 TG |
155 | test.option_server_id.length = 4; |
156 | test.option_server_id.address = htobe32(INADDR_LOOPBACK); | |
157 | test.option_requested_ip.address = htobe32(INADDR_LOOPBACK + 3); | |
158 | assert_se(dhcp_server_handle_message(server, (DHCPMessage*)&test, sizeof(test)) == DHCP_ACK); | |
87322b3a | 159 | |
2dead812 TG |
160 | test.option_server_id.address = htobe32(0x12345678); |
161 | test.option_requested_ip.address = htobe32(INADDR_LOOPBACK + 3); | |
162 | assert_se(dhcp_server_handle_message(server, (DHCPMessage*)&test, sizeof(test)) == 0); | |
bd57b450 | 163 | test.option_server_id.address = htobe32(INADDR_LOOPBACK); |
87322b3a TG |
164 | test.option_requested_ip.address = htobe32(INADDR_LOOPBACK + 4); |
165 | assert_se(dhcp_server_handle_message(server, (DHCPMessage*)&test, sizeof(test)) == 0); | |
166 | test.option_requested_ip.address = htobe32(INADDR_LOOPBACK + 3); | |
167 | assert_se(dhcp_server_handle_message(server, (DHCPMessage*)&test, sizeof(test)) == DHCP_ACK); | |
168 | ||
22805d92 | 169 | test.option_client_id.code = SD_DHCP_OPTION_CLIENT_IDENTIFIER; |
87322b3a TG |
170 | test.option_client_id.length = 7; |
171 | test.option_client_id.id[0] = 0x01; | |
172 | test.option_client_id.id[1] = 'A'; | |
173 | test.option_client_id.id[2] = 'B'; | |
174 | test.option_client_id.id[3] = 'C'; | |
175 | test.option_client_id.id[4] = 'D'; | |
176 | test.option_client_id.id[5] = 'E'; | |
177 | test.option_client_id.id[6] = 'F'; | |
178 | assert_se(dhcp_server_handle_message(server, (DHCPMessage*)&test, sizeof(test)) == DHCP_ACK); | |
179 | ||
bd57b450 | 180 | test.option_requested_ip.address = htobe32(INADDR_LOOPBACK + 30); |
2dead812 | 181 | assert_se(dhcp_server_handle_message(server, (DHCPMessage*)&test, sizeof(test)) == 0); |
be077570 TG |
182 | } |
183 | ||
b826ab58 TG |
184 | static uint64_t client_id_hash_helper(DHCPClientId *id, uint8_t key[HASH_KEY_SIZE]) { |
185 | struct siphash state; | |
186 | ||
0cb3c286 | 187 | siphash24_init(&state, key); |
b826ab58 | 188 | client_id_hash_func(id, &state); |
0cb3c286 | 189 | |
933f9cae | 190 | return htole64(siphash24_finalize(&state)); |
b826ab58 TG |
191 | } |
192 | ||
87322b3a TG |
193 | static void test_client_id_hash(void) { |
194 | DHCPClientId a = { | |
195 | .length = 4, | |
196 | }, b = { | |
197 | .length = 4, | |
198 | }; | |
199 | uint8_t hash_key[HASH_KEY_SIZE] = { | |
200 | '0', '1', '2', '3', '4', '5', '6', '7', | |
201 | '8', '9', 'A', 'B', 'C', 'D', 'E', 'F', | |
202 | }; | |
203 | ||
204 | a.data = (uint8_t*)strdup("abcd"); | |
205 | b.data = (uint8_t*)strdup("abcd"); | |
206 | ||
207 | assert_se(client_id_compare_func(&a, &b) == 0); | |
b826ab58 | 208 | assert_se(client_id_hash_helper(&a, hash_key) == client_id_hash_helper(&b, hash_key)); |
87322b3a TG |
209 | a.length = 3; |
210 | assert_se(client_id_compare_func(&a, &b) != 0); | |
211 | a.length = 4; | |
212 | assert_se(client_id_compare_func(&a, &b) == 0); | |
b826ab58 | 213 | assert_se(client_id_hash_helper(&a, hash_key) == client_id_hash_helper(&b, hash_key)); |
87322b3a TG |
214 | |
215 | b.length = 3; | |
216 | assert_se(client_id_compare_func(&a, &b) != 0); | |
217 | b.length = 4; | |
218 | assert_se(client_id_compare_func(&a, &b) == 0); | |
b826ab58 | 219 | assert_se(client_id_hash_helper(&a, hash_key) == client_id_hash_helper(&b, hash_key)); |
87322b3a TG |
220 | |
221 | free(b.data); | |
222 | b.data = (uint8_t*)strdup("abce"); | |
223 | assert_se(client_id_compare_func(&a, &b) != 0); | |
224 | ||
225 | free(a.data); | |
226 | free(b.data); | |
227 | } | |
228 | ||
b44cd882 | 229 | int main(int argc, char *argv[]) { |
4afd3348 | 230 | _cleanup_(sd_event_unrefp) sd_event *e; |
6f08fb7b | 231 | int r; |
b44cd882 | 232 | |
6d7c4033 | 233 | test_setup_logging(LOG_DEBUG); |
b44cd882 TG |
234 | |
235 | assert_se(sd_event_new(&e) >= 0); | |
236 | ||
6f08fb7b | 237 | r = test_basic(e); |
317bb217 ZJS |
238 | if (r != 0) |
239 | return log_tests_skipped("cannot start dhcp server"); | |
6f08fb7b | 240 | |
be077570 | 241 | test_message_handler(); |
87322b3a | 242 | test_client_id_hash(); |
b44cd882 TG |
243 | |
244 | return 0; | |
245 | } |