Neels Hofmeyr | 2989ff8 | 2015-10-12 11:57:35 +0200 | [diff] [blame] | 1 | /* Test Osmocom Authentication Protocol */ |
| 2 | /* |
| 3 | * (C) 2015 by sysmocom s.f.m.c. GmbH |
| 4 | * All Rights Reserved |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU Affero General Public License as published by |
| 8 | * the Free Software Foundation; either version 3 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU Affero General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU Affero General Public License |
| 17 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 18 | * |
| 19 | */ |
| 20 | |
| 21 | #include <osmocom/core/application.h> |
| 22 | |
| 23 | #include <openbsc/debug.h> |
| 24 | |
| 25 | #include <openbsc/oap.h> |
| 26 | #include <openbsc/oap_messages.h> |
| 27 | |
| 28 | #include <stdio.h> |
| 29 | |
Neels Hofmeyr | 4d7c00f | 2015-10-12 11:57:36 +0200 | [diff] [blame^] | 30 | static void test_oap_api(void) |
Neels Hofmeyr | 2989ff8 | 2015-10-12 11:57:35 +0200 | [diff] [blame] | 31 | { |
Neels Hofmeyr | 4d7c00f | 2015-10-12 11:57:36 +0200 | [diff] [blame^] | 32 | printf("Testing OAP API\n - Config parsing\n"); |
| 33 | |
| 34 | struct oap_config _config; |
| 35 | struct oap_config *config = &_config; |
| 36 | |
| 37 | struct oap_state _state; |
| 38 | struct oap_state *state = &_state; |
| 39 | |
| 40 | memset(config, 0, sizeof(*config)); |
| 41 | memset(state, 0, sizeof(*state)); |
| 42 | |
| 43 | OSMO_ASSERT(osmo_hexparse("0102030405060708090a0b0c0d0e0f10", config->secret_k, 16) == 16); |
| 44 | OSMO_ASSERT(osmo_hexparse("1112131415161718191a1b1c1d1e1f20", config->secret_opc, 16) == 16); |
| 45 | |
| 46 | /* make sure filling with zeros means uninitialized */ |
| 47 | OSMO_ASSERT(state->state == OAP_UNINITIALIZED); |
| 48 | |
| 49 | /* invalid client_id and shared secret */ |
| 50 | config->client_id = 0; |
| 51 | config->secret_k_present = 0; |
| 52 | config->secret_opc_present = 0; |
| 53 | OSMO_ASSERT( oap_init(config, state) == 0 ); |
| 54 | OSMO_ASSERT(state->state == OAP_DISABLED); |
| 55 | |
| 56 | /* reset state */ |
| 57 | memset(state, 0, sizeof(*state)); |
| 58 | |
| 59 | /* only client_id is invalid */ |
| 60 | config->client_id = 0; |
| 61 | config->secret_k_present = 1; |
| 62 | config->secret_opc_present = 1; |
| 63 | OSMO_ASSERT( oap_init(config, state) == 0 ); |
| 64 | OSMO_ASSERT(state->state == OAP_DISABLED); |
| 65 | |
| 66 | memset(state, 0, sizeof(*state)); |
| 67 | |
| 68 | /* valid id, but omitted shared_secret (1/2) */ |
| 69 | config->client_id = 12345; |
| 70 | config->secret_k_present = 0; |
| 71 | config->secret_opc_present = 1; |
| 72 | OSMO_ASSERT( oap_init(config, state) == 0 ); |
| 73 | OSMO_ASSERT(state->state == OAP_DISABLED); |
| 74 | |
| 75 | memset(state, 0, sizeof(*state)); |
| 76 | |
| 77 | /* valid id, but omitted shared_secret (2/2) */ |
| 78 | config->client_id = 12345; |
| 79 | config->secret_k_present = 1; |
| 80 | config->secret_opc_present = 0; |
| 81 | OSMO_ASSERT( oap_init(config, state) == 0 ); |
| 82 | OSMO_ASSERT(state->state == OAP_DISABLED); |
| 83 | |
| 84 | memset(state, 0, sizeof(*state)); |
| 85 | |
| 86 | |
| 87 | /* mint configuration */ |
| 88 | config->client_id = 12345; |
| 89 | config->secret_k_present = 1; |
| 90 | config->secret_opc_present = 1; |
| 91 | /*config->secret_* buffers are still set from the top */ |
| 92 | OSMO_ASSERT( oap_init(config, state) == 0 ); |
| 93 | OSMO_ASSERT(state->state == OAP_INITIALIZED); |
| 94 | |
| 95 | printf(" - AUTN failures\n"); |
| 96 | |
| 97 | struct oap_message oap_rx; |
| 98 | struct oap_message oap_tx; |
| 99 | struct msgb *msg_rx; |
| 100 | struct msgb *msg_tx; |
| 101 | |
| 102 | memset(&oap_rx, 0, sizeof(oap_rx)); |
| 103 | |
| 104 | /* Missing challenge data */ |
| 105 | oap_rx.message_type = OAP_MSGT_CHALLENGE_REQUEST; |
| 106 | oap_rx.rand_present = 0; |
| 107 | oap_rx.autn_present = 0; |
| 108 | msg_rx = oap_encoded(&oap_rx); |
| 109 | OSMO_ASSERT(oap_handle(state, msg_rx, &msg_tx) == -2); |
| 110 | msgb_free(msg_rx); |
| 111 | OSMO_ASSERT(!msg_tx); |
| 112 | |
| 113 | /* AUTN missing */ |
| 114 | osmo_hexparse("0102030405060708090a0b0c0d0e0f10", |
| 115 | oap_rx.rand, 16); |
| 116 | oap_rx.rand_present = 1; |
| 117 | msg_rx = oap_encoded(&oap_rx); |
| 118 | OSMO_ASSERT(oap_handle(state, msg_rx, &msg_tx) == -2); |
| 119 | msgb_free(msg_rx); |
| 120 | OSMO_ASSERT(!msg_tx); |
| 121 | |
| 122 | /* RAND missing */ |
| 123 | oap_rx.rand_present = 0; |
| 124 | osmo_hexparse("cec4e3848a33000086781158ca40f136", |
| 125 | oap_rx.autn, 16); |
| 126 | oap_rx.autn_present = 1; |
| 127 | msg_rx = oap_encoded(&oap_rx); |
| 128 | OSMO_ASSERT(oap_handle(state, msg_rx, &msg_tx) == -2); |
| 129 | msgb_free(msg_rx); |
| 130 | OSMO_ASSERT(!msg_tx); |
| 131 | |
| 132 | /* wrong autn (by one bit) */ |
| 133 | osmo_hexparse("0102030405060708090a0b0c0d0e0f10", |
| 134 | oap_rx.rand, 16); |
| 135 | osmo_hexparse("dec4e3848a33000086781158ca40f136", |
| 136 | oap_rx.autn, 16); |
| 137 | oap_rx.rand_present = 1; |
| 138 | oap_rx.autn_present = 1; |
| 139 | msg_rx = oap_encoded(&oap_rx); |
| 140 | OSMO_ASSERT(oap_handle(state, msg_rx, &msg_tx) == -2); |
| 141 | msgb_free(msg_rx); |
| 142 | OSMO_ASSERT(!msg_tx); |
| 143 | |
| 144 | /* all data correct */ |
| 145 | osmo_hexparse("cec4e3848a33000086781158ca40f136", |
| 146 | oap_rx.autn, 16); |
| 147 | msg_rx = oap_encoded(&oap_rx); |
| 148 | |
| 149 | /* but refuse to evaluate in uninitialized state */ |
| 150 | OSMO_ASSERT(state->state == OAP_INITIALIZED); |
| 151 | |
| 152 | state->state = OAP_UNINITIALIZED; |
| 153 | OSMO_ASSERT(oap_handle(state, msg_rx, &msg_tx) == -1); |
| 154 | OSMO_ASSERT(!msg_tx); |
| 155 | |
| 156 | state->state = OAP_DISABLED; |
| 157 | OSMO_ASSERT(oap_handle(state, msg_rx, &msg_tx) == -1); |
| 158 | OSMO_ASSERT(!msg_tx); |
| 159 | |
| 160 | state->state = OAP_INITIALIZED; |
| 161 | |
| 162 | /* now everything is correct */ |
| 163 | printf(" - AUTN success\n"); |
| 164 | /* a successful return value here indicates correct autn */ |
| 165 | OSMO_ASSERT(oap_handle(state, msg_rx, &msg_tx) == 0); |
| 166 | msgb_free(msg_rx); |
| 167 | |
| 168 | /* Expect the challenge response in msg_tx */ |
| 169 | OSMO_ASSERT(msg_tx); |
| 170 | OSMO_ASSERT(oap_decode(msg_tx->data, msg_tx->len, &oap_tx) == 0); |
| 171 | OSMO_ASSERT(oap_tx.message_type == OAP_MSGT_CHALLENGE_RESULT); |
| 172 | OSMO_ASSERT(strcmp("e2d05b598c61d9ba", |
| 173 | osmo_hexdump_nospc(oap_tx.xres, sizeof(oap_tx.xres))) |
| 174 | == 0); |
| 175 | OSMO_ASSERT(state->state == OAP_SENT_CHALLENGE_RESULT); |
| 176 | msgb_free(msg_tx); |
| 177 | msg_tx = 0; |
| 178 | |
| 179 | struct oap_state saved_state = _state; |
| 180 | |
| 181 | printf(" - Registration failure\n"); |
| 182 | |
| 183 | memset(&oap_rx, 0, sizeof(oap_rx)); |
| 184 | oap_rx.message_type = OAP_MSGT_REGISTER_ERROR; |
| 185 | oap_rx.cause = GMM_CAUSE_PROTO_ERR_UNSPEC; |
| 186 | msg_rx = oap_encoded(&oap_rx); |
| 187 | |
| 188 | /* Receive registration error for the first time. */ |
| 189 | OSMO_ASSERT(state->registration_failures == 0); |
| 190 | OSMO_ASSERT(oap_handle(state, msg_rx, &msg_tx) == 0); |
| 191 | OSMO_ASSERT(state->registration_failures == 1); |
| 192 | OSMO_ASSERT(msg_tx); |
| 193 | OSMO_ASSERT(oap_decode(msg_tx->data, msg_tx->len, &oap_tx) == 0); |
| 194 | OSMO_ASSERT(oap_tx.message_type == OAP_MSGT_REGISTER_REQUEST); |
| 195 | OSMO_ASSERT(state->state == OAP_REQUESTED_CHALLENGE); |
| 196 | msgb_free(msg_tx); |
| 197 | msg_tx = 0; |
| 198 | |
| 199 | /* Receive registration error for the Nth time. */ |
| 200 | state->registration_failures = 999; |
| 201 | OSMO_ASSERT(oap_handle(state, msg_rx, &msg_tx) == -11); |
| 202 | OSMO_ASSERT(!msg_tx); |
| 203 | OSMO_ASSERT(state->state == OAP_INITIALIZED); |
| 204 | msgb_free(msg_tx); |
| 205 | msg_tx = 0; |
| 206 | |
| 207 | msgb_free(msg_rx); |
| 208 | |
| 209 | printf(" - Registration success\n"); |
| 210 | |
| 211 | _state = saved_state; |
| 212 | memset(&oap_rx, 0, sizeof(oap_rx)); |
| 213 | oap_rx.message_type = OAP_MSGT_REGISTER_RESULT; |
| 214 | msg_rx = oap_encoded(&oap_rx); |
| 215 | OSMO_ASSERT(oap_handle(state, msg_rx, &msg_tx) == 0); |
| 216 | OSMO_ASSERT(!msg_tx); |
| 217 | OSMO_ASSERT(state->state == OAP_REGISTERED); |
| 218 | msgb_free(msg_rx); |
Neels Hofmeyr | 2989ff8 | 2015-10-12 11:57:35 +0200 | [diff] [blame] | 219 | } |
| 220 | |
| 221 | static struct log_info_cat gprs_categories[] = { |
| 222 | [DGPRS] = { |
| 223 | .name = "DGPRS", |
| 224 | .description = "GPRS Packet Service", |
| 225 | .enabled = 1, .loglevel = LOGL_DEBUG, |
| 226 | }, |
| 227 | }; |
| 228 | |
| 229 | static struct log_info info = { |
| 230 | .cat = gprs_categories, |
| 231 | .num_cat = ARRAY_SIZE(gprs_categories), |
| 232 | }; |
| 233 | |
| 234 | int main(int argc, char **argv) |
| 235 | { |
| 236 | osmo_init_logging(&info); |
| 237 | |
Neels Hofmeyr | 4d7c00f | 2015-10-12 11:57:36 +0200 | [diff] [blame^] | 238 | test_oap_api(); |
Neels Hofmeyr | 2989ff8 | 2015-10-12 11:57:35 +0200 | [diff] [blame] | 239 | printf("Done\n"); |
| 240 | |
| 241 | return 0; |
| 242 | } |
| 243 | |