Holger Hans Peter Freyther | 72bd4eb | 2011-12-11 20:25:12 +0100 | [diff] [blame] | 1 | /* |
| 2 | * (C) 2011 by Holger Hans Peter Freyther |
| 3 | * (C) 2011 by On-Waves |
Daniel Willmann | 0912935 | 2014-03-20 18:54:57 +0100 | [diff] [blame] | 4 | * (C) 2014 by Daniel Willmann <dwillmann@sysmocom.de> |
Holger Hans Peter Freyther | 72bd4eb | 2011-12-11 20:25:12 +0100 | [diff] [blame] | 5 | * All Rights Reserved |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License as published by |
| 9 | * the Free Software Foundation; either version 2 of the License, or |
| 10 | * (at your option) any later version. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | * GNU General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License along |
| 18 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 19 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| 20 | * |
| 21 | */ |
| 22 | |
Holger Hans Peter Freyther | af723a4 | 2012-12-26 10:51:00 +0100 | [diff] [blame] | 23 | #include <osmocom/core/application.h> |
Holger Hans Peter Freyther | 72bd4eb | 2011-12-11 20:25:12 +0100 | [diff] [blame] | 24 | #include <osmocom/core/logging.h> |
Katerina Barone-Adesi | 008e53b | 2013-03-03 10:36:52 +0000 | [diff] [blame] | 25 | #include <osmocom/core/utils.h> |
Holger Hans Peter Freyther | 72bd4eb | 2011-12-11 20:25:12 +0100 | [diff] [blame] | 26 | #include <osmocom/gsm/lapdm.h> |
| 27 | #include <osmocom/gsm/rsl.h> |
| 28 | |
| 29 | #include <errno.h> |
| 30 | |
| 31 | #include <string.h> |
| 32 | |
| 33 | #define CHECK_RC(rc) \ |
| 34 | if (rc != 0) { \ |
| 35 | printf("Operation failed rc=%d on %s:%d\n", rc, __FILE__, __LINE__); \ |
| 36 | abort(); \ |
| 37 | } |
| 38 | |
Holger Hans Peter Freyther | 72bd4eb | 2011-12-11 20:25:12 +0100 | [diff] [blame] | 39 | static struct log_info info = {}; |
Jacob Erlbeck | c893c22 | 2014-01-28 10:53:59 +0100 | [diff] [blame] | 40 | static int dummy_l1_header_len = 0; |
Holger Hans Peter Freyther | 72bd4eb | 2011-12-11 20:25:12 +0100 | [diff] [blame] | 41 | |
| 42 | struct lapdm_polling_state { |
| 43 | struct lapdm_channel *bts; |
| 44 | int bts_read; |
| 45 | |
| 46 | struct lapdm_channel *ms; |
| 47 | int ms_read; |
| 48 | }; |
| 49 | |
| 50 | static struct msgb *msgb_from_array(const uint8_t *data, int len) |
| 51 | { |
| 52 | struct msgb *msg = msgb_alloc_headroom(4096, 128, "data"); |
| 53 | msg->l3h = msgb_put(msg, len); |
Harald Welte | 53e2672 | 2017-01-04 11:18:59 +0100 | [diff] [blame] | 54 | if (data && len) |
| 55 | memcpy(msg->l3h, data, len); |
Holger Hans Peter Freyther | 72bd4eb | 2011-12-11 20:25:12 +0100 | [diff] [blame] | 56 | return msg; |
| 57 | } |
| 58 | |
Holger Hans Peter Freyther | 15f740c | 2011-12-12 00:29:50 +0100 | [diff] [blame] | 59 | /* |
| 60 | * Test data is below... |
| 61 | */ |
| 62 | static const uint8_t cm[] = { |
| 63 | 0x05, 0x24, 0x31, 0x03, 0x50, 0x18, 0x93, 0x08, |
| 64 | 0x29, 0x47, 0x80, 0x00, 0x00, 0x00, 0x00, 0x80, |
| 65 | }; |
| 66 | |
Andreas Eversberg | 6e18208 | 2013-02-06 14:13:21 +0100 | [diff] [blame] | 67 | static const uint8_t ua[] = { |
| 68 | 0x01, 0x73, 0x41, 0x05, 0x24, 0x31, 0x03, 0x50, |
| 69 | 0x18, 0x93, 0x08, 0x29, 0x47, 0x80, 0x00, 0x00, |
| 70 | 0x00, 0x00, 0x80, 0x2b, 0x2b, 0x2b, 0x2b |
| 71 | }; |
| 72 | |
Holger Hans Peter Freyther | 15f740c | 2011-12-12 00:29:50 +0100 | [diff] [blame] | 73 | static const uint8_t mm[] = { |
Holger Hans Peter Freyther | 3a5f08c | 2012-01-12 23:12:28 +0100 | [diff] [blame] | 74 | 0x00, 0x0c, 0x00, 0x03, 0x01, 0x01, 0x20, 0x02, |
| 75 | 0x00, 0x0b, 0x00, 0x03, 0x05, 0x04, 0x0d |
Holger Hans Peter Freyther | 15f740c | 2011-12-12 00:29:50 +0100 | [diff] [blame] | 76 | }; |
| 77 | |
| 78 | static const uint8_t dummy1[] = { |
| 79 | 0xab, 0x03, 0x30, 0x60, 0x06, |
| 80 | }; |
Holger Hans Peter Freyther | 72bd4eb | 2011-12-11 20:25:12 +0100 | [diff] [blame] | 81 | |
Daniel Willmann | e523392 | 2012-12-25 23:15:50 +0100 | [diff] [blame] | 82 | static const uint8_t rel_req[] = { |
| 83 | 0x02, 0x07, 0x01, 0x0a, 0x02, 0x40, 0x14, 0x01 |
| 84 | }; |
| 85 | |
Jacob Erlbeck | 90937fe | 2014-01-24 13:48:19 +0100 | [diff] [blame] | 86 | static const uint8_t est_req_sdcch_sapi3[] = { |
| 87 | 0x02, 0x04, 0x01, 0x20, 0x02, 0x03 |
| 88 | }; |
| 89 | |
| 90 | static const uint8_t est_req_sacch_sapi3[] = { |
| 91 | 0x02, 0x04, 0x01, 0x0b, 0x02, 0x43 |
| 92 | }; |
| 93 | |
Holger Hans Peter Freyther | 72bd4eb | 2011-12-11 20:25:12 +0100 | [diff] [blame] | 94 | static struct msgb *create_cm_serv_req(void) |
| 95 | { |
| 96 | struct msgb *msg; |
Holger Hans Peter Freyther | 72bd4eb | 2011-12-11 20:25:12 +0100 | [diff] [blame] | 97 | |
| 98 | msg = msgb_from_array(cm, sizeof(cm)); |
| 99 | rsl_rll_push_l3(msg, RSL_MT_EST_REQ, 0, 0, 1); |
Jacob Erlbeck | c893c22 | 2014-01-28 10:53:59 +0100 | [diff] [blame] | 100 | msgb_push(msg, dummy_l1_header_len); |
Holger Hans Peter Freyther | 72bd4eb | 2011-12-11 20:25:12 +0100 | [diff] [blame] | 101 | return msg; |
| 102 | } |
| 103 | |
| 104 | static struct msgb *create_mm_id_req(void) |
| 105 | { |
| 106 | struct msgb *msg; |
Holger Hans Peter Freyther | 72bd4eb | 2011-12-11 20:25:12 +0100 | [diff] [blame] | 107 | |
| 108 | msg = msgb_from_array(mm, sizeof(mm)); |
Holger Hans Peter Freyther | 3a5f08c | 2012-01-12 23:12:28 +0100 | [diff] [blame] | 109 | msg->l2h = msg->data + 3; |
Katerina Barone-Adesi | 008e53b | 2013-03-03 10:36:52 +0000 | [diff] [blame] | 110 | OSMO_ASSERT(msgb_l2len(msg) == 12); |
Holger Hans Peter Freyther | 3a5f08c | 2012-01-12 23:12:28 +0100 | [diff] [blame] | 111 | msg->l3h = msg->l2h + 6; |
Katerina Barone-Adesi | 008e53b | 2013-03-03 10:36:52 +0000 | [diff] [blame] | 112 | OSMO_ASSERT(msgb_l3len(msg) == 6); |
Jacob Erlbeck | c893c22 | 2014-01-28 10:53:59 +0100 | [diff] [blame] | 113 | msgb_push(msg, dummy_l1_header_len); |
Holger Hans Peter Freyther | 3a5f08c | 2012-01-12 23:12:28 +0100 | [diff] [blame] | 114 | |
Holger Hans Peter Freyther | 72bd4eb | 2011-12-11 20:25:12 +0100 | [diff] [blame] | 115 | return msg; |
| 116 | } |
| 117 | |
Holger Hans Peter Freyther | 90656db | 2012-01-13 05:49:29 +0800 | [diff] [blame] | 118 | static struct msgb *create_empty_msg(void) |
| 119 | { |
| 120 | struct msgb *msg; |
| 121 | |
| 122 | msg = msgb_from_array(NULL, 0); |
Katerina Barone-Adesi | 008e53b | 2013-03-03 10:36:52 +0000 | [diff] [blame] | 123 | OSMO_ASSERT(msgb_l3len(msg) == 0); |
Holger Hans Peter Freyther | 90656db | 2012-01-13 05:49:29 +0800 | [diff] [blame] | 124 | rsl_rll_push_l3(msg, RSL_MT_DATA_REQ, 0, 0, 1); |
Jacob Erlbeck | c893c22 | 2014-01-28 10:53:59 +0100 | [diff] [blame] | 125 | msgb_push(msg, dummy_l1_header_len); |
Holger Hans Peter Freyther | 90656db | 2012-01-13 05:49:29 +0800 | [diff] [blame] | 126 | return msg; |
| 127 | } |
| 128 | |
Holger Hans Peter Freyther | 72bd4eb | 2011-12-11 20:25:12 +0100 | [diff] [blame] | 129 | static struct msgb *create_dummy_data_req(void) |
| 130 | { |
| 131 | struct msgb *msg; |
Holger Hans Peter Freyther | 72bd4eb | 2011-12-11 20:25:12 +0100 | [diff] [blame] | 132 | |
| 133 | msg = msgb_from_array(dummy1, sizeof(dummy1)); |
| 134 | rsl_rll_push_l3(msg, RSL_MT_DATA_REQ, 0, 0, 1); |
Jacob Erlbeck | c893c22 | 2014-01-28 10:53:59 +0100 | [diff] [blame] | 135 | msgb_push(msg, dummy_l1_header_len); |
Holger Hans Peter Freyther | 72bd4eb | 2011-12-11 20:25:12 +0100 | [diff] [blame] | 136 | return msg; |
| 137 | } |
| 138 | |
Daniel Willmann | e523392 | 2012-12-25 23:15:50 +0100 | [diff] [blame] | 139 | static struct msgb *create_rel_req(void) |
| 140 | { |
| 141 | struct msgb *msg; |
| 142 | |
| 143 | msg = msgb_from_array(rel_req, sizeof(rel_req)); |
| 144 | msg->l2h = msg->data; |
Jacob Erlbeck | c893c22 | 2014-01-28 10:53:59 +0100 | [diff] [blame] | 145 | msgb_push(msg, dummy_l1_header_len); |
Daniel Willmann | e523392 | 2012-12-25 23:15:50 +0100 | [diff] [blame] | 146 | msg->l3h = msg->l2h + sizeof(struct abis_rsl_rll_hdr); |
| 147 | return msg; |
| 148 | } |
| 149 | |
Jacob Erlbeck | 90937fe | 2014-01-24 13:48:19 +0100 | [diff] [blame] | 150 | static struct msgb *create_est_req(const uint8_t *est_req, size_t est_req_size) |
| 151 | { |
| 152 | struct msgb *msg; |
| 153 | |
| 154 | msg = msgb_from_array(est_req, est_req_size); |
| 155 | msg->l2h = msg->data; |
Jacob Erlbeck | c893c22 | 2014-01-28 10:53:59 +0100 | [diff] [blame] | 156 | msgb_push(msg, dummy_l1_header_len); |
Jacob Erlbeck | 90937fe | 2014-01-24 13:48:19 +0100 | [diff] [blame] | 157 | msg->l3h = msg->l2h + sizeof(struct abis_rsl_rll_hdr); |
| 158 | return msg; |
| 159 | } |
| 160 | |
Holger Hans Peter Freyther | 72bd4eb | 2011-12-11 20:25:12 +0100 | [diff] [blame] | 161 | static int send(struct msgb *in_msg, struct lapdm_channel *chan) |
| 162 | { |
| 163 | struct osmo_phsap_prim pp; |
| 164 | struct msgb *msg; |
| 165 | int rc; |
| 166 | |
| 167 | msg = msgb_alloc_headroom(128, 64, "PH-DATA.ind"); |
| 168 | osmo_prim_init(&pp.oph, SAP_GSM_PH, PRIM_PH_DATA, |
| 169 | PRIM_OP_INDICATION, msg); |
| 170 | /* copy over actual MAC block */ |
| 171 | msg->l2h = msgb_put(msg, msgb_l2len(in_msg)); |
| 172 | memcpy(msg->l2h, in_msg->l2h, msgb_l2len(in_msg)); |
| 173 | |
| 174 | /* LAPDm requires those... */ |
| 175 | pp.u.data.chan_nr = 0; |
| 176 | pp.u.data.link_id = 0; |
| 177 | /* feed into the LAPDm code of libosmogsm */ |
| 178 | rc = lapdm_phsap_up(&pp.oph, &chan->lapdm_dcch); |
Katerina Barone-Adesi | 008e53b | 2013-03-03 10:36:52 +0000 | [diff] [blame] | 179 | OSMO_ASSERT(rc == 0 || rc == -EBUSY); |
Holger Hans Peter Freyther | 72bd4eb | 2011-12-11 20:25:12 +0100 | [diff] [blame] | 180 | return 0; |
| 181 | } |
| 182 | |
Daniel Willmann | 0912935 | 2014-03-20 18:54:57 +0100 | [diff] [blame] | 183 | /* Receive from L1 */ |
| 184 | static int send_buf(const uint8_t *buf, size_t len, struct lapdm_channel *chan) |
Andreas Eversberg | 6e18208 | 2013-02-06 14:13:21 +0100 | [diff] [blame] | 185 | { |
| 186 | struct osmo_phsap_prim pp; |
| 187 | struct msgb *msg; |
| 188 | int rc; |
| 189 | |
Daniel Willmann | 0912935 | 2014-03-20 18:54:57 +0100 | [diff] [blame] | 190 | msg = msgb_from_array(buf, len); |
| 191 | msg->l2h = msg->l3h; |
| 192 | msg->l3h = NULL; |
| 193 | osmo_prim_init(&pp.oph, SAP_GSM_PH, PRIM_PH_DATA, |
| 194 | PRIM_OP_INDICATION, msg); |
| 195 | |
| 196 | /* LAPDm requires those... */ |
| 197 | pp.u.data.chan_nr = 0; |
| 198 | pp.u.data.link_id = 0; |
| 199 | /* feed into the LAPDm code of libosmogsm */ |
| 200 | rc = lapdm_phsap_up(&pp.oph, &chan->lapdm_dcch); |
| 201 | OSMO_ASSERT(rc == 0 || rc == -EBUSY); |
| 202 | return 0; |
| 203 | } |
| 204 | |
| 205 | /* Receive from L3 */ |
| 206 | static int enqueue_buf(const uint8_t *buf, size_t len, int sapi, struct lapdm_channel *chan) |
| 207 | { |
| 208 | struct osmo_dlsap_prim dp; |
| 209 | struct msgb *msg; |
| 210 | int rc; |
| 211 | struct lapdm_datalink *dl; |
| 212 | |
| 213 | dl = lapdm_datalink_for_sapi(&chan->lapdm_dcch, sapi); |
| 214 | OSMO_ASSERT(dl); |
| 215 | |
| 216 | msg = msgb_from_array(buf, len); |
| 217 | osmo_prim_init(&dp.oph, 0, PRIM_DL_DATA, PRIM_OP_REQUEST, msg); |
| 218 | |
| 219 | rc = lapd_recv_dlsap(&dp, &dl->dl.lctx); |
| 220 | OSMO_ASSERT(rc == 0 || rc == -EBUSY); |
| 221 | return 0; |
| 222 | } |
| 223 | |
| 224 | static int send_sabm(struct lapdm_channel *chan, int sapi, const uint8_t *data, size_t len) |
| 225 | { |
| 226 | struct osmo_phsap_prim pp; |
| 227 | struct msgb *msg; |
| 228 | int rc; |
| 229 | |
| 230 | OSMO_ASSERT(sapi == 0 || sapi == 3); |
| 231 | |
Andreas Eversberg | 6e18208 | 2013-02-06 14:13:21 +0100 | [diff] [blame] | 232 | msg = msgb_alloc_headroom(128, 64, "PH-DATA.ind"); |
| 233 | osmo_prim_init(&pp.oph, SAP_GSM_PH, PRIM_PH_DATA, |
| 234 | PRIM_OP_INDICATION, msg); |
| 235 | /* copy over actual MAC block */ |
Daniel Willmann | 0912935 | 2014-03-20 18:54:57 +0100 | [diff] [blame] | 236 | msg->l2h = msgb_put(msg, 3 + len); |
| 237 | msg->l2h[0] = 0x01 | (sapi << 2); |
Andreas Eversberg | 6e18208 | 2013-02-06 14:13:21 +0100 | [diff] [blame] | 238 | msg->l2h[1] = 0x3f; |
Daniel Willmann | 0912935 | 2014-03-20 18:54:57 +0100 | [diff] [blame] | 239 | msg->l2h[2] = 0x01 | (len << 2); |
| 240 | |
| 241 | if (len > 0) |
| 242 | memcpy(msg->l2h + 3, data, len); |
Andreas Eversberg | 6e18208 | 2013-02-06 14:13:21 +0100 | [diff] [blame] | 243 | |
| 244 | /* LAPDm requires those... */ |
| 245 | pp.u.data.chan_nr = 0; |
| 246 | pp.u.data.link_id = 0; |
| 247 | /* feed into the LAPDm code of libosmogsm */ |
| 248 | rc = lapdm_phsap_up(&pp.oph, &chan->lapdm_dcch); |
| 249 | OSMO_ASSERT(rc == 0 || rc == -EBUSY); |
| 250 | return 0; |
| 251 | } |
| 252 | |
Holger Hans Peter Freyther | 72bd4eb | 2011-12-11 20:25:12 +0100 | [diff] [blame] | 253 | /* |
| 254 | * I get called from the LAPDm code when something was sent my way... |
| 255 | */ |
| 256 | static int bts_to_ms_tx_cb(struct msgb *in_msg, struct lapdm_entity *le, void *_ctx) |
| 257 | { |
| 258 | struct lapdm_polling_state *state = _ctx; |
| 259 | |
Holger Hans Peter Freyther | 72bd4eb | 2011-12-11 20:25:12 +0100 | [diff] [blame] | 260 | |
| 261 | printf("%s: MS->BTS(us) message %d\n", __func__, msgb_length(in_msg)); |
Holger Hans Peter Freyther | 15f740c | 2011-12-12 00:29:50 +0100 | [diff] [blame] | 262 | |
| 263 | |
| 264 | if (state->bts_read == 0) { |
| 265 | printf("BTS: Verifying CM request.\n"); |
Holger Hans Peter Freyther | dd34ed5 | 2013-06-19 08:16:56 +0200 | [diff] [blame] | 266 | OSMO_ASSERT(msgb_l3len(in_msg) == ARRAY_SIZE(cm)); |
| 267 | OSMO_ASSERT(memcmp(in_msg->l3h, cm, |
| 268 | ARRAY_SIZE(cm)) == 0); |
Holger Hans Peter Freyther | 15f740c | 2011-12-12 00:29:50 +0100 | [diff] [blame] | 269 | } else if (state->bts_read == 1) { |
| 270 | printf("BTS: Verifying dummy message.\n"); |
Katerina Barone-Adesi | 008e53b | 2013-03-03 10:36:52 +0000 | [diff] [blame] | 271 | OSMO_ASSERT(msgb_l3len(in_msg) == ARRAY_SIZE(dummy1)); |
| 272 | OSMO_ASSERT(memcmp(in_msg->l3h, dummy1, |
| 273 | ARRAY_SIZE(dummy1)) == 0); |
Holger Hans Peter Freyther | 15f740c | 2011-12-12 00:29:50 +0100 | [diff] [blame] | 274 | } else { |
| 275 | printf("BTS: Do not know to verify: %d\n", state->bts_read); |
| 276 | } |
| 277 | |
| 278 | state->bts_read += 1; |
Holger Hans Peter Freyther | 72bd4eb | 2011-12-11 20:25:12 +0100 | [diff] [blame] | 279 | msgb_free(in_msg); |
| 280 | |
| 281 | return 0; |
| 282 | } |
| 283 | |
| 284 | static int ms_to_bts_l1_cb(struct osmo_prim_hdr *oph, void *_ctx) |
| 285 | { |
| 286 | int rc; |
| 287 | struct lapdm_polling_state *state = _ctx; |
| 288 | printf("%s: MS(us) -> BTS prim message\n", __func__); |
| 289 | |
| 290 | /* i stuff it into the LAPDm channel of the BTS */ |
| 291 | rc = send(oph->msg, state->bts); |
| 292 | msgb_free(oph->msg); |
Holger Hans Peter Freyther | af723a4 | 2012-12-26 10:51:00 +0100 | [diff] [blame] | 293 | return rc; |
Holger Hans Peter Freyther | 72bd4eb | 2011-12-11 20:25:12 +0100 | [diff] [blame] | 294 | } |
| 295 | |
Jacob Erlbeck | 2462cf6 | 2014-02-25 10:49:00 +0100 | [diff] [blame] | 296 | static int dequeue_prim(struct lapdm_entity *le, struct osmo_phsap_prim *pp, |
| 297 | const char *queue_name) |
| 298 | { |
| 299 | int rc; |
| 300 | int l2_header_len; |
| 301 | int l3_len = 0; |
| 302 | |
| 303 | /* Take message from queue */ |
| 304 | rc = lapdm_phsap_dequeue_prim(le, pp); |
| 305 | |
| 306 | fprintf(stderr, "dequeue: got rc %d: %s\n", rc, |
| 307 | rc <= 0 ? strerror(-rc) : "-"); |
| 308 | |
| 309 | if (rc < 0) |
| 310 | return rc; |
| 311 | |
| 312 | l2_header_len = msgb_l2len(pp->oph.msg); |
| 313 | if (msgb_l3(pp->oph.msg)) { |
| 314 | l3_len = msgb_l3len(pp->oph.msg); |
| 315 | l2_header_len -= l3_len; |
| 316 | } else |
| 317 | fprintf(stderr, "MSGB: L3 is undefined\n"); |
| 318 | |
| 319 | if (l2_header_len < 0 || l2_header_len > pp->oph.msg->data_len) { |
| 320 | fprintf(stderr, |
| 321 | "MSGB inconsistent: data = %p, l2 = %p, l3 = %p, tail = %p\n", |
| 322 | pp->oph.msg->data, |
| 323 | pp->oph.msg->l2h, |
| 324 | pp->oph.msg->l3h, |
| 325 | pp->oph.msg->tail); |
| 326 | l2_header_len = -1; |
| 327 | } |
| 328 | |
| 329 | printf("Took message from %s queue: " |
| 330 | "L2 header size %d, L3 size %d, " |
| 331 | "SAP %#x, %d/%d, Link 0x%02x\n", |
| 332 | queue_name, |
| 333 | l2_header_len, l3_len, |
| 334 | pp->oph.sap, pp->oph.primitive, pp->oph.operation, |
| 335 | pp->u.data.link_id); |
| 336 | printf("Message: %s\n", msgb_hexdump(pp->oph.msg)); |
| 337 | |
| 338 | return rc; |
| 339 | } |
| 340 | |
Holger Hans Peter Freyther | 72bd4eb | 2011-12-11 20:25:12 +0100 | [diff] [blame] | 341 | static int ms_to_bts_tx_cb(struct msgb *msg, struct lapdm_entity *le, void *_ctx) |
| 342 | { |
| 343 | struct lapdm_polling_state *state = _ctx; |
| 344 | |
| 345 | printf("%s: BTS->MS(us) message %d\n", __func__, msgb_length(msg)); |
| 346 | |
| 347 | if (state->ms_read == 0) { |
Holger Hans Peter Freyther | 15f740c | 2011-12-12 00:29:50 +0100 | [diff] [blame] | 348 | struct abis_rsl_rll_hdr hdr; |
| 349 | |
| 350 | printf("MS: Verifying incoming primitive.\n"); |
Katerina Barone-Adesi | 008e53b | 2013-03-03 10:36:52 +0000 | [diff] [blame] | 351 | OSMO_ASSERT(msg->len == sizeof(struct abis_rsl_rll_hdr) + 3); |
Holger Hans Peter Freyther | 15f740c | 2011-12-12 00:29:50 +0100 | [diff] [blame] | 352 | |
| 353 | /* verify the header */ |
| 354 | memset(&hdr, 0, sizeof(hdr)); |
| 355 | rsl_init_rll_hdr(&hdr, RSL_MT_EST_CONF); |
| 356 | hdr.c.msg_discr |= ABIS_RSL_MDISC_TRANSP; |
Katerina Barone-Adesi | 008e53b | 2013-03-03 10:36:52 +0000 | [diff] [blame] | 357 | OSMO_ASSERT(memcmp(msg->data, &hdr, sizeof(hdr)) == 0); |
Holger Hans Peter Freyther | 15f740c | 2011-12-12 00:29:50 +0100 | [diff] [blame] | 358 | |
| 359 | /* Verify the added RSL_IE_L3_INFO but we have a bug here */ |
Katerina Barone-Adesi | 008e53b | 2013-03-03 10:36:52 +0000 | [diff] [blame] | 360 | OSMO_ASSERT(msg->data[6] == RSL_IE_L3_INFO); |
Holger Hans Peter Freyther | 4a075f8 | 2011-12-12 00:41:25 +0100 | [diff] [blame] | 361 | #warning "RSL_IE_L3_INFO 16 bit length is wrong" |
Holger Hans Peter Freyther | 3cc268c | 2013-06-19 08:30:59 +0200 | [diff] [blame] | 362 | /* This should be okay but it is actually 0x0, 0x9c on ia-32 */ |
| 363 | /* OSMO_ASSERT(msg->data[7] == 0x0 && msg->data[8] == 0x0); */ |
Holger Hans Peter Freyther | 72bd4eb | 2011-12-11 20:25:12 +0100 | [diff] [blame] | 364 | } else if (state->ms_read == 1) { |
Holger Hans Peter Freyther | 3a5f08c | 2012-01-12 23:12:28 +0100 | [diff] [blame] | 365 | printf("MS: Verifying incoming MM message: %d\n", msgb_l3len(msg)); |
Katerina Barone-Adesi | 008e53b | 2013-03-03 10:36:52 +0000 | [diff] [blame] | 366 | OSMO_ASSERT(msgb_l3len(msg) == 3); |
| 367 | OSMO_ASSERT(memcmp(msg->l3h, &mm[12], msgb_l3len(msg)) == 0); |
Holger Hans Peter Freyther | 15f740c | 2011-12-12 00:29:50 +0100 | [diff] [blame] | 368 | } else { |
| 369 | printf("MS: Do not know to verify: %d\n", state->ms_read); |
Holger Hans Peter Freyther | 72bd4eb | 2011-12-11 20:25:12 +0100 | [diff] [blame] | 370 | } |
| 371 | |
| 372 | state->ms_read += 1; |
| 373 | msgb_free(msg); |
| 374 | return 0; |
| 375 | } |
| 376 | |
| 377 | static void test_lapdm_polling() |
| 378 | { |
| 379 | printf("I do some very simple LAPDm test.\n"); |
| 380 | |
| 381 | int rc; |
| 382 | struct lapdm_polling_state test_state; |
| 383 | struct osmo_phsap_prim pp; |
| 384 | |
| 385 | /* Configure LAPDm on both sides */ |
| 386 | struct lapdm_channel bts_to_ms_channel; |
| 387 | struct lapdm_channel ms_to_bts_channel; |
| 388 | memset(&bts_to_ms_channel, 0, sizeof(bts_to_ms_channel)); |
| 389 | memset(&ms_to_bts_channel, 0, sizeof(ms_to_bts_channel)); |
| 390 | |
| 391 | memset(&test_state, 0, sizeof(test_state)); |
| 392 | test_state.bts = &bts_to_ms_channel; |
| 393 | test_state.ms = &ms_to_bts_channel; |
| 394 | |
| 395 | /* BTS to MS in polling mode */ |
| 396 | lapdm_channel_init(&bts_to_ms_channel, LAPDM_MODE_BTS); |
| 397 | lapdm_channel_set_flags(&bts_to_ms_channel, LAPDM_ENT_F_POLLING_ONLY); |
| 398 | lapdm_channel_set_l1(&bts_to_ms_channel, NULL, &test_state); |
| 399 | lapdm_channel_set_l3(&bts_to_ms_channel, bts_to_ms_tx_cb, &test_state); |
| 400 | |
| 401 | /* MS to BTS in direct mode */ |
| 402 | lapdm_channel_init(&ms_to_bts_channel, LAPDM_MODE_MS); |
| 403 | lapdm_channel_set_l1(&ms_to_bts_channel, ms_to_bts_l1_cb, &test_state); |
| 404 | lapdm_channel_set_l3(&ms_to_bts_channel, ms_to_bts_tx_cb, &test_state); |
| 405 | |
| 406 | /* |
| 407 | * We try to send messages from the MS to the BTS to the MS.. |
| 408 | */ |
| 409 | /* 1. Start with MS -> BTS, BTS should have a pending message */ |
| 410 | printf("Establishing link.\n"); |
| 411 | lapdm_rslms_recvmsg(create_cm_serv_req(), &ms_to_bts_channel); |
| 412 | |
| 413 | /* 2. Poll on the BTS for sending out a confirmation */ |
| 414 | printf("\nConfirming\n"); |
Katerina Barone-Adesi | 008e53b | 2013-03-03 10:36:52 +0000 | [diff] [blame] | 415 | OSMO_ASSERT(test_state.bts_read == 1); |
Jacob Erlbeck | 2462cf6 | 2014-02-25 10:49:00 +0100 | [diff] [blame] | 416 | rc = dequeue_prim(&bts_to_ms_channel.lapdm_dcch, &pp, "DCCH"); |
Holger Hans Peter Freyther | 72bd4eb | 2011-12-11 20:25:12 +0100 | [diff] [blame] | 417 | CHECK_RC(rc); |
Katerina Barone-Adesi | 008e53b | 2013-03-03 10:36:52 +0000 | [diff] [blame] | 418 | OSMO_ASSERT(pp.oph.msg->data == pp.oph.msg->l2h); |
Holger Hans Peter Freyther | 72bd4eb | 2011-12-11 20:25:12 +0100 | [diff] [blame] | 419 | send(pp.oph.msg, &ms_to_bts_channel); |
| 420 | msgb_free(pp.oph.msg); |
Katerina Barone-Adesi | 008e53b | 2013-03-03 10:36:52 +0000 | [diff] [blame] | 421 | OSMO_ASSERT(test_state.ms_read == 1); |
Holger Hans Peter Freyther | 72bd4eb | 2011-12-11 20:25:12 +0100 | [diff] [blame] | 422 | |
| 423 | /* 3. Send some data to the MS */ |
| 424 | printf("\nSending back to MS\n"); |
| 425 | lapdm_rslms_recvmsg(create_mm_id_req(), &bts_to_ms_channel); |
Jacob Erlbeck | 2462cf6 | 2014-02-25 10:49:00 +0100 | [diff] [blame] | 426 | rc = dequeue_prim(&bts_to_ms_channel.lapdm_dcch, &pp, "DCCH"); |
Holger Hans Peter Freyther | 72bd4eb | 2011-12-11 20:25:12 +0100 | [diff] [blame] | 427 | CHECK_RC(rc); |
| 428 | send(pp.oph.msg, &ms_to_bts_channel); |
| 429 | msgb_free(pp.oph.msg); |
Katerina Barone-Adesi | 008e53b | 2013-03-03 10:36:52 +0000 | [diff] [blame] | 430 | OSMO_ASSERT(test_state.ms_read == 2); |
Holger Hans Peter Freyther | 72bd4eb | 2011-12-11 20:25:12 +0100 | [diff] [blame] | 431 | |
| 432 | /* verify that there is nothing more to poll */ |
Jacob Erlbeck | 2462cf6 | 2014-02-25 10:49:00 +0100 | [diff] [blame] | 433 | rc = dequeue_prim(&bts_to_ms_channel.lapdm_dcch, &pp, "DCCH"); |
Katerina Barone-Adesi | 008e53b | 2013-03-03 10:36:52 +0000 | [diff] [blame] | 434 | OSMO_ASSERT(rc < 0); |
Holger Hans Peter Freyther | 72bd4eb | 2011-12-11 20:25:12 +0100 | [diff] [blame] | 435 | |
| 436 | /* 3. And back to the BTS */ |
| 437 | printf("\nSending back to BTS\n"); |
Katerina Barone-Adesi | 008e53b | 2013-03-03 10:36:52 +0000 | [diff] [blame] | 438 | OSMO_ASSERT(test_state.ms_read == 2); |
Holger Hans Peter Freyther | 72bd4eb | 2011-12-11 20:25:12 +0100 | [diff] [blame] | 439 | lapdm_rslms_recvmsg(create_dummy_data_req(), &ms_to_bts_channel); |
| 440 | |
| 441 | |
Holger Hans Peter Freyther | 3a5f08c | 2012-01-12 23:12:28 +0100 | [diff] [blame] | 442 | /* 4. And back to the MS, but let's move data/l2h apart */ |
Katerina Barone-Adesi | 008e53b | 2013-03-03 10:36:52 +0000 | [diff] [blame] | 443 | OSMO_ASSERT(test_state.bts_read == 2); |
| 444 | OSMO_ASSERT(test_state.ms_read == 2); |
Jacob Erlbeck | 2462cf6 | 2014-02-25 10:49:00 +0100 | [diff] [blame] | 445 | rc = dequeue_prim(&bts_to_ms_channel.lapdm_dcch, &pp, "DCCH"); |
Holger Hans Peter Freyther | 72bd4eb | 2011-12-11 20:25:12 +0100 | [diff] [blame] | 446 | CHECK_RC(rc); |
| 447 | send(pp.oph.msg, &ms_to_bts_channel); |
Katerina Barone-Adesi | 008e53b | 2013-03-03 10:36:52 +0000 | [diff] [blame] | 448 | OSMO_ASSERT(test_state.ms_read == 2); |
Holger Hans Peter Freyther | 72bd4eb | 2011-12-11 20:25:12 +0100 | [diff] [blame] | 449 | msgb_free(pp.oph.msg); |
| 450 | |
| 451 | /* verify that there is nothing more to poll */ |
Jacob Erlbeck | 2462cf6 | 2014-02-25 10:49:00 +0100 | [diff] [blame] | 452 | rc = dequeue_prim(&bts_to_ms_channel.lapdm_dcch, &pp, "DCCH"); |
Katerina Barone-Adesi | 008e53b | 2013-03-03 10:36:52 +0000 | [diff] [blame] | 453 | OSMO_ASSERT(rc < 0); |
Jacob Erlbeck | 7d5f17a | 2014-02-28 15:54:03 +0100 | [diff] [blame] | 454 | rc = dequeue_prim(&bts_to_ms_channel.lapdm_acch, &pp, "ACCH"); |
| 455 | OSMO_ASSERT(rc < 0); |
Holger Hans Peter Freyther | 72bd4eb | 2011-12-11 20:25:12 +0100 | [diff] [blame] | 456 | |
Holger Hans Peter Freyther | 90656db | 2012-01-13 05:49:29 +0800 | [diff] [blame] | 457 | /* check sending an empty L3 message fails */ |
| 458 | rc = lapdm_rslms_recvmsg(create_empty_msg(), &bts_to_ms_channel); |
Katerina Barone-Adesi | 008e53b | 2013-03-03 10:36:52 +0000 | [diff] [blame] | 459 | OSMO_ASSERT(rc == -1); |
| 460 | OSMO_ASSERT(test_state.ms_read == 2); |
Holger Hans Peter Freyther | 90656db | 2012-01-13 05:49:29 +0800 | [diff] [blame] | 461 | |
Holger Hans Peter Freyther | 72bd4eb | 2011-12-11 20:25:12 +0100 | [diff] [blame] | 462 | /* clean up */ |
| 463 | lapdm_channel_exit(&bts_to_ms_channel); |
| 464 | lapdm_channel_exit(&ms_to_bts_channel); |
Holger Hans Peter Freyther | ce397de | 2013-10-26 13:35:15 +0200 | [diff] [blame] | 465 | |
| 466 | /* Check if exit is idempotent */ |
| 467 | lapdm_channel_exit(&bts_to_ms_channel); |
| 468 | lapdm_channel_exit(&ms_to_bts_channel); |
Holger Hans Peter Freyther | 72bd4eb | 2011-12-11 20:25:12 +0100 | [diff] [blame] | 469 | } |
| 470 | |
Andreas Eversberg | 6e18208 | 2013-02-06 14:13:21 +0100 | [diff] [blame] | 471 | static void test_lapdm_contention_resolution() |
| 472 | { |
| 473 | printf("I test contention resultion by having two mobiles collide and " |
| 474 | "first mobile repeating SABM.\n"); |
| 475 | |
| 476 | int rc; |
| 477 | struct lapdm_polling_state test_state; |
| 478 | struct osmo_phsap_prim pp; |
Daniel Willmann | 0912935 | 2014-03-20 18:54:57 +0100 | [diff] [blame] | 479 | uint8_t *cm2; |
Andreas Eversberg | 6e18208 | 2013-02-06 14:13:21 +0100 | [diff] [blame] | 480 | |
| 481 | /* Configure LAPDm on both sides */ |
| 482 | struct lapdm_channel bts_to_ms_channel; |
| 483 | memset(&bts_to_ms_channel, 0, sizeof(bts_to_ms_channel)); |
| 484 | |
| 485 | memset(&test_state, 0, sizeof(test_state)); |
| 486 | test_state.bts = &bts_to_ms_channel; |
| 487 | |
| 488 | /* BTS to MS in polling mode */ |
| 489 | lapdm_channel_init(&bts_to_ms_channel, LAPDM_MODE_BTS); |
| 490 | lapdm_channel_set_flags(&bts_to_ms_channel, LAPDM_ENT_F_POLLING_ONLY); |
| 491 | lapdm_channel_set_l1(&bts_to_ms_channel, NULL, &test_state); |
| 492 | lapdm_channel_set_l3(&bts_to_ms_channel, bts_to_ms_tx_cb, &test_state); |
| 493 | |
| 494 | /* Send SABM MS 1, we must get UA */ |
Daniel Willmann | 0912935 | 2014-03-20 18:54:57 +0100 | [diff] [blame] | 495 | send_sabm(&bts_to_ms_channel, 0, cm, sizeof(cm)); |
Jacob Erlbeck | 2462cf6 | 2014-02-25 10:49:00 +0100 | [diff] [blame] | 496 | rc = dequeue_prim(&bts_to_ms_channel.lapdm_dcch, &pp, "DCCH"); |
Andreas Eversberg | 6e18208 | 2013-02-06 14:13:21 +0100 | [diff] [blame] | 497 | CHECK_RC(rc); |
| 498 | OSMO_ASSERT(memcmp(pp.oph.msg->l2h, ua, ARRAY_SIZE(ua)) == 0); |
| 499 | |
| 500 | /* Send SABM MS 2, we must get nothing, due to collision */ |
Daniel Willmann | 0912935 | 2014-03-20 18:54:57 +0100 | [diff] [blame] | 501 | cm2 = malloc(sizeof(cm)); |
| 502 | memcpy(cm2, cm, sizeof(cm)); |
| 503 | cm2[0] += 1; |
| 504 | send_sabm(&bts_to_ms_channel, 0, cm2, sizeof(cm2)); |
| 505 | free(cm2); |
Jacob Erlbeck | 2462cf6 | 2014-02-25 10:49:00 +0100 | [diff] [blame] | 506 | rc = dequeue_prim(&bts_to_ms_channel.lapdm_dcch, &pp, "DCCH"); |
Andreas Eversberg | 6e18208 | 2013-02-06 14:13:21 +0100 | [diff] [blame] | 507 | OSMO_ASSERT(rc == -ENODEV); |
| 508 | |
| 509 | /* Send SABM MS 1 again, we must get UA gain */ |
Daniel Willmann | 0912935 | 2014-03-20 18:54:57 +0100 | [diff] [blame] | 510 | send_sabm(&bts_to_ms_channel, 0, cm, sizeof(cm)); |
Jacob Erlbeck | 2462cf6 | 2014-02-25 10:49:00 +0100 | [diff] [blame] | 511 | rc = dequeue_prim(&bts_to_ms_channel.lapdm_dcch, &pp, "DCCH"); |
Andreas Eversberg | 6e18208 | 2013-02-06 14:13:21 +0100 | [diff] [blame] | 512 | CHECK_RC(rc); |
| 513 | OSMO_ASSERT(memcmp(pp.oph.msg->l2h, ua, ARRAY_SIZE(ua)) == 0); |
| 514 | |
| 515 | /* clean up */ |
| 516 | lapdm_channel_exit(&bts_to_ms_channel); |
Holger Hans Peter Freyther | ce397de | 2013-10-26 13:35:15 +0200 | [diff] [blame] | 517 | |
| 518 | /* idempotent */ |
| 519 | lapdm_channel_exit(&bts_to_ms_channel); |
Andreas Eversberg | 6e18208 | 2013-02-06 14:13:21 +0100 | [diff] [blame] | 520 | } |
| 521 | |
Jacob Erlbeck | 90937fe | 2014-01-24 13:48:19 +0100 | [diff] [blame] | 522 | static void test_lapdm_early_release() |
| 523 | { |
| 524 | printf("I test RF channel release of an unestablished channel.\n"); |
| 525 | |
| 526 | int rc; |
| 527 | struct lapdm_polling_state test_state; |
| 528 | |
| 529 | /* Configure LAPDm on both sides */ |
| 530 | struct lapdm_channel bts_to_ms_channel; |
| 531 | memset(&bts_to_ms_channel, 0, sizeof(bts_to_ms_channel)); |
| 532 | |
| 533 | memset(&test_state, 0, sizeof(test_state)); |
| 534 | test_state.bts = &bts_to_ms_channel; |
| 535 | |
| 536 | /* BTS to MS in polling mode */ |
| 537 | lapdm_channel_init(&bts_to_ms_channel, LAPDM_MODE_BTS); |
| 538 | lapdm_channel_set_flags(&bts_to_ms_channel, LAPDM_ENT_F_POLLING_ONLY); |
| 539 | lapdm_channel_set_l1(&bts_to_ms_channel, NULL, &test_state); |
| 540 | lapdm_channel_set_l3(&bts_to_ms_channel, bts_to_ms_tx_cb, &test_state); |
| 541 | |
| 542 | /* Send the release request */ |
| 543 | rc = lapdm_rslms_recvmsg(create_rel_req(), &bts_to_ms_channel); |
| 544 | OSMO_ASSERT(rc == -EINVAL); |
| 545 | |
| 546 | /* clean up */ |
| 547 | lapdm_channel_exit(&bts_to_ms_channel); |
| 548 | |
| 549 | /* Check if exit is idempotent */ |
| 550 | lapdm_channel_exit(&bts_to_ms_channel); |
| 551 | } |
| 552 | |
| 553 | static void lapdm_establish(const uint8_t *est_req, size_t est_req_size) |
| 554 | { |
| 555 | int rc; |
| 556 | struct lapdm_polling_state test_state; |
| 557 | struct osmo_phsap_prim pp; |
| 558 | struct msgb *msg; |
Jacob Erlbeck | 90937fe | 2014-01-24 13:48:19 +0100 | [diff] [blame] | 559 | |
| 560 | /* Configure LAPDm on both sides */ |
| 561 | struct lapdm_channel bts_to_ms_channel; |
| 562 | memset(&bts_to_ms_channel, 0, sizeof(bts_to_ms_channel)); |
| 563 | |
| 564 | memset(&test_state, 0, sizeof(test_state)); |
| 565 | test_state.bts = &bts_to_ms_channel; |
| 566 | |
| 567 | /* BTS to MS in polling mode */ |
| 568 | lapdm_channel_init(&bts_to_ms_channel, LAPDM_MODE_BTS); |
| 569 | lapdm_channel_set_flags(&bts_to_ms_channel, LAPDM_ENT_F_POLLING_ONLY); |
| 570 | lapdm_channel_set_l1(&bts_to_ms_channel, NULL, &test_state); |
| 571 | lapdm_channel_set_l3(&bts_to_ms_channel, bts_to_ms_tx_cb, &test_state); |
| 572 | |
| 573 | /* Send the release request */ |
| 574 | msg = create_est_req(est_req, est_req_size); |
| 575 | rc = lapdm_rslms_recvmsg(msg, &bts_to_ms_channel); |
| 576 | fprintf(stderr, "recvmsg: got rc %d: %s\n", rc, rc <= 0 ? strerror(-rc) : "???"); |
| 577 | OSMO_ASSERT(rc == 0); |
| 578 | |
| 579 | /* Take message from queue */ |
Jacob Erlbeck | 2462cf6 | 2014-02-25 10:49:00 +0100 | [diff] [blame] | 580 | rc = dequeue_prim(&bts_to_ms_channel.lapdm_dcch, &pp, "DCCH"); |
| 581 | if (rc < 0) |
| 582 | rc = dequeue_prim(&bts_to_ms_channel.lapdm_acch, &pp, "ACCH"); |
Jacob Erlbeck | 90937fe | 2014-01-24 13:48:19 +0100 | [diff] [blame] | 583 | |
Jacob Erlbeck | 90937fe | 2014-01-24 13:48:19 +0100 | [diff] [blame] | 584 | CHECK_RC(rc); |
| 585 | |
Jacob Erlbeck | 90937fe | 2014-01-24 13:48:19 +0100 | [diff] [blame] | 586 | OSMO_ASSERT(pp.oph.msg->data == msgb_l2(pp.oph.msg)); |
| 587 | |
Jacob Erlbeck | 2462cf6 | 2014-02-25 10:49:00 +0100 | [diff] [blame] | 588 | rc = dequeue_prim(&bts_to_ms_channel.lapdm_dcch, &pp, "DCCH"); |
Jacob Erlbeck | 90937fe | 2014-01-24 13:48:19 +0100 | [diff] [blame] | 589 | OSMO_ASSERT(rc < 0); |
Jacob Erlbeck | 2462cf6 | 2014-02-25 10:49:00 +0100 | [diff] [blame] | 590 | rc = dequeue_prim(&bts_to_ms_channel.lapdm_acch, &pp, "ACCH"); |
Jacob Erlbeck | 90937fe | 2014-01-24 13:48:19 +0100 | [diff] [blame] | 591 | OSMO_ASSERT(rc < 0); |
| 592 | |
| 593 | /* clean up */ |
| 594 | lapdm_channel_exit(&bts_to_ms_channel); |
| 595 | |
| 596 | /* idempotent */ |
| 597 | lapdm_channel_exit(&bts_to_ms_channel); |
| 598 | } |
| 599 | |
| 600 | static void test_lapdm_establishment() |
| 601 | { |
| 602 | printf("I test RF channel establishment.\n"); |
| 603 | printf("Testing SAPI3/SDCCH\n"); |
| 604 | lapdm_establish(est_req_sdcch_sapi3, sizeof(est_req_sdcch_sapi3)); |
| 605 | printf("Testing SAPI3/SACCH\n"); |
| 606 | lapdm_establish(est_req_sacch_sapi3, sizeof(est_req_sacch_sapi3)); |
| 607 | } |
| 608 | |
Daniel Willmann | 0912935 | 2014-03-20 18:54:57 +0100 | [diff] [blame] | 609 | |
| 610 | const uint8_t cm_chg[] = { |
| 611 | 0x01, 0x00, 0x49, 0x06, 0x16, 0x03, 0x33, |
| 612 | 0x59, 0xa6, 0x20, 0x0a, 0x20, 0x04, 0x04, |
| 613 | 0x2f, 0x65, 0x23, 0x02, 0x00, 0x24, 0x04 |
| 614 | }; |
| 615 | |
| 616 | const uint8_t cm_chg_ack[] = { |
| 617 | 0x01, 0x21, 0x01 |
| 618 | }; |
| 619 | |
| 620 | const uint8_t gprs_susp[] = { |
| 621 | 0x01, 0x02, 0x35, 0x06, 0x34, 0xe3, 0xd4, |
| 622 | 0xd2, 0x6f, 0x09, 0xf1, 0x07, 0x00, 0x01, 0x00, 0x02 |
| 623 | }; |
| 624 | |
Daniel Willmann | 0912935 | 2014-03-20 18:54:57 +0100 | [diff] [blame] | 625 | const uint8_t cipher_cmd[] = { |
| 626 | 0x06, 0x35, 0x01 |
| 627 | }; |
| 628 | |
Daniel Willmann | 3dc4e16 | 2014-03-20 19:24:48 +0100 | [diff] [blame] | 629 | /* The cipher command we send to the MS after updating our N(R) */ |
Daniel Willmann | 0912935 | 2014-03-20 18:54:57 +0100 | [diff] [blame] | 630 | const uint8_t cipher_cmd_out[] = { |
Daniel Willmann | 3dc4e16 | 2014-03-20 19:24:48 +0100 | [diff] [blame] | 631 | 0x03, 0x40, 0x0d, 0x06, 0x35, 0x01 |
Daniel Willmann | 0912935 | 2014-03-20 18:54:57 +0100 | [diff] [blame] | 632 | }; |
| 633 | |
| 634 | uint8_t cipher_compl[] = { |
| 635 | 0x01, 0x24, 0x09, 0x06, 0x32 |
| 636 | }; |
| 637 | |
| 638 | uint8_t cipher_compl_ack[] = { |
| 639 | 0x01, 0x61, 0x01 |
| 640 | }; |
| 641 | |
| 642 | static const uint8_t ua_sms[] = { |
| 643 | 0x0d, 0x73, 0x01 |
| 644 | }; |
| 645 | |
| 646 | const uint8_t cp_data_1[] = { |
| 647 | 0x0d, 0x00, 0x53, 0x59, 0x01, 0x5c, 0x00, |
| 648 | 0x4c, 0x00, 0x06, 0x91, 0x86, 0x77, 0x07, |
| 649 | 0x00, 0xf9, 0x51, 0x11, 0x76, 0x05, 0x81, 0x29, 0x32 |
| 650 | }; |
| 651 | |
| 652 | const uint8_t cp_data_1_ack[] = { |
| 653 | 0x0d, 0x21, 0x01 |
| 654 | }; |
| 655 | |
| 656 | static int bts_to_ms_dummy_tx_cb(struct msgb *in_msg, struct lapdm_entity *le, void *_ctx) |
| 657 | { |
| 658 | printf("%s: MS->BTS(us) message %d\n", __func__, msgb_length(in_msg)); |
| 659 | msgb_free(in_msg); |
| 660 | |
| 661 | return 0; |
| 662 | } |
| 663 | |
| 664 | static void dump_queue(struct llist_head *head) |
| 665 | { |
| 666 | struct msgb* msg; |
| 667 | |
| 668 | printf("\nDumping queue:\n"); |
| 669 | llist_for_each_entry(msg, head, list) |
| 670 | printf("%s\n", msgb_hexdump(msg)); |
| 671 | printf("\n"); |
| 672 | } |
| 673 | |
| 674 | static void test_lapdm_desync() |
| 675 | { |
| 676 | printf("I test if desync problems exist in LAPDm\n"); |
| 677 | |
| 678 | int rc; |
| 679 | struct osmo_phsap_prim pp; |
| 680 | |
| 681 | /* Configure LAPDm on both sides */ |
| 682 | struct lapdm_channel bts_to_ms_channel; |
| 683 | memset(&bts_to_ms_channel, 0, sizeof(bts_to_ms_channel)); |
| 684 | |
| 685 | /* BTS to MS in polling mode */ |
| 686 | lapdm_channel_init(&bts_to_ms_channel, LAPDM_MODE_BTS); |
| 687 | lapdm_channel_set_flags(&bts_to_ms_channel, LAPDM_ENT_F_POLLING_ONLY); |
| 688 | lapdm_channel_set_l1(&bts_to_ms_channel, NULL, NULL); |
| 689 | lapdm_channel_set_l3(&bts_to_ms_channel, bts_to_ms_dummy_tx_cb, NULL); |
| 690 | struct lapdm_datalink *dl = lapdm_datalink_for_sapi(&bts_to_ms_channel.lapdm_dcch, 0); |
| 691 | dl->mctx.dl = dl; |
| 692 | dl->dl.lctx.dl = &dl->dl; |
| 693 | |
| 694 | /* Send SABM MS 1, we must get UA */ |
| 695 | printf("\nEstablishing SAPI=0\n"); |
| 696 | send_sabm(&bts_to_ms_channel, 0, cm, sizeof(cm)); |
| 697 | |
| 698 | dump_queue(&dl->dl.tx_queue); |
| 699 | |
| 700 | rc = dequeue_prim(&bts_to_ms_channel.lapdm_dcch, &pp, "DCCH"); |
| 701 | CHECK_RC(rc); |
| 702 | OSMO_ASSERT(memcmp(pp.oph.msg->l2h, ua, ARRAY_SIZE(ua)) == 0); |
| 703 | |
| 704 | printf("\nSending Classmark Change\n"); |
| 705 | send_buf(cm_chg, sizeof(cm_chg), &bts_to_ms_channel); |
| 706 | dump_queue(&dl->dl.tx_queue); |
| 707 | |
| 708 | rc = dequeue_prim(&bts_to_ms_channel.lapdm_dcch, &pp, "DCCH"); |
| 709 | CHECK_RC(rc); |
| 710 | OSMO_ASSERT(memcmp(pp.oph.msg->l2h, cm_chg_ack, ARRAY_SIZE(cm_chg_ack)) == 0); |
| 711 | |
| 712 | printf("\nEnqueueing Ciphering Mode Command\n"); |
| 713 | enqueue_buf(cipher_cmd, sizeof(cipher_cmd), 0, &bts_to_ms_channel); |
| 714 | dump_queue(&dl->dl.tx_queue); |
| 715 | |
| 716 | printf("\nSending GPRS Suspend Request\n"); |
| 717 | send_buf(gprs_susp, sizeof(gprs_susp), &bts_to_ms_channel); |
| 718 | dump_queue(&dl->dl.tx_queue); |
| 719 | |
| 720 | rc = dequeue_prim(&bts_to_ms_channel.lapdm_dcch, &pp, "DCCH"); |
| 721 | CHECK_RC(rc); |
| 722 | OSMO_ASSERT(memcmp(pp.oph.msg->l2h, cipher_cmd_out, ARRAY_SIZE(cipher_cmd_out)) == 0); |
| 723 | |
| 724 | printf("\nSending Cipher Mode Complete\n"); |
| 725 | send_buf(cipher_compl, sizeof(cipher_compl), &bts_to_ms_channel); |
| 726 | dump_queue(&dl->dl.tx_queue); |
| 727 | |
| 728 | rc = dequeue_prim(&bts_to_ms_channel.lapdm_dcch, &pp, "DCCH"); |
| 729 | CHECK_RC(rc); |
Daniel Willmann | 3dc4e16 | 2014-03-20 19:24:48 +0100 | [diff] [blame] | 730 | OSMO_ASSERT(memcmp(pp.oph.msg->l2h, cipher_compl_ack, ARRAY_SIZE(cipher_compl_ack)) == 0); |
Daniel Willmann | 0912935 | 2014-03-20 18:54:57 +0100 | [diff] [blame] | 731 | |
| 732 | printf("\nEstablishing SAPI=3\n"); |
| 733 | send_sabm(&bts_to_ms_channel, 3, NULL, 0); |
| 734 | dump_queue(&dl->dl.tx_queue); |
| 735 | |
| 736 | rc = dequeue_prim(&bts_to_ms_channel.lapdm_dcch, &pp, "DCCH"); |
| 737 | CHECK_RC(rc); |
| 738 | OSMO_ASSERT(memcmp(pp.oph.msg->l2h, ua_sms, ARRAY_SIZE(ua_sms)) == 0); |
| 739 | |
| 740 | printf("\nSending CP-DATA\n"); |
| 741 | send_buf(cp_data_1, sizeof(cp_data_1), &bts_to_ms_channel); |
| 742 | dump_queue(&dl->dl.tx_queue); |
| 743 | |
| 744 | rc = dequeue_prim(&bts_to_ms_channel.lapdm_dcch, &pp, "DCCH"); |
| 745 | CHECK_RC(rc); |
Daniel Willmann | 3dc4e16 | 2014-03-20 19:24:48 +0100 | [diff] [blame] | 746 | OSMO_ASSERT(memcmp(pp.oph.msg->l2h, cp_data_1_ack, ARRAY_SIZE(cp_data_1_ack)) == 0); |
Daniel Willmann | 0912935 | 2014-03-20 18:54:57 +0100 | [diff] [blame] | 747 | |
| 748 | /* clean up */ |
| 749 | lapdm_channel_exit(&bts_to_ms_channel); |
| 750 | |
| 751 | /* Check if exit is idempotent */ |
| 752 | lapdm_channel_exit(&bts_to_ms_channel); |
| 753 | } |
| 754 | |
Holger Hans Peter Freyther | 72bd4eb | 2011-12-11 20:25:12 +0100 | [diff] [blame] | 755 | int main(int argc, char **argv) |
| 756 | { |
| 757 | osmo_init_logging(&info); |
| 758 | |
Jacob Erlbeck | c893c22 | 2014-01-28 10:53:59 +0100 | [diff] [blame] | 759 | /* Prevent the test from segfaulting */ |
| 760 | dummy_l1_header_len = 0; |
Holger Hans Peter Freyther | 72bd4eb | 2011-12-11 20:25:12 +0100 | [diff] [blame] | 761 | test_lapdm_polling(); |
Jacob Erlbeck | c893c22 | 2014-01-28 10:53:59 +0100 | [diff] [blame] | 762 | |
| 763 | dummy_l1_header_len = 3; |
Daniel Willmann | e523392 | 2012-12-25 23:15:50 +0100 | [diff] [blame] | 764 | test_lapdm_early_release(); |
Andreas Eversberg | 6e18208 | 2013-02-06 14:13:21 +0100 | [diff] [blame] | 765 | test_lapdm_contention_resolution(); |
Jacob Erlbeck | 90937fe | 2014-01-24 13:48:19 +0100 | [diff] [blame] | 766 | test_lapdm_establishment(); |
Daniel Willmann | 0912935 | 2014-03-20 18:54:57 +0100 | [diff] [blame] | 767 | test_lapdm_desync(); |
Jacob Erlbeck | c893c22 | 2014-01-28 10:53:59 +0100 | [diff] [blame] | 768 | |
Holger Hans Peter Freyther | 72bd4eb | 2011-12-11 20:25:12 +0100 | [diff] [blame] | 769 | printf("Success.\n"); |
| 770 | |
| 771 | return 0; |
| 772 | } |