Ivan Kluchnikov | 5c2f9fb | 2012-02-05 02:27:17 +0400 | [diff] [blame] | 1 | /* bssgp.cpp |
| 2 | * |
| 3 | * Copyright (C) 2011 Ivan Klyuchnikov |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or |
| 6 | * modify it under the terms of the GNU General Public License |
| 7 | * as published by the Free Software Foundation; either version 2 |
| 8 | * of the License, or (at your option) any later version. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this program; if not, write to the Free Software |
| 17 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 18 | */ |
| 19 | |
| 20 | #include <arpa/inet.h> |
| 21 | #include <Threads.h> |
| 22 | #include "GPRSSocket.h" |
Ivan Kluchnikov | 8aa4c52 | 2012-02-20 15:15:12 +0400 | [diff] [blame] | 23 | #include "gsm_rlcmac.h" |
Ivan Kluchnikov | 5c2f9fb | 2012-02-05 02:27:17 +0400 | [diff] [blame] | 24 | #include "bssgp.h" |
| 25 | |
| 26 | // TODO: We should move this parameters to config file. |
| 27 | #define SGSN_IP "127.0.0.1" |
| 28 | #define SGSN_PORT 23000 |
| 29 | #define CELL_ID 3 |
| 30 | #define BVCI 7 |
| 31 | #define NSEI 3 |
| 32 | #define NSVCI 4 |
| 33 | #define MNC 1 |
| 34 | #define MCC 1 |
| 35 | #define LAC 1000 |
| 36 | #define RAC 1 |
| 37 | |
| 38 | #define QOS_PROFILE 0 |
| 39 | #define BSSGP_HDR_LEN 20 |
| 40 | #define NS_HDR_LEN 4 |
| 41 | #define MAX_LEN_PDU 100 |
| 42 | #define IE_PDU 14 |
Ivan Kluchnikov | 8aa4c52 | 2012-02-20 15:15:12 +0400 | [diff] [blame] | 43 | #define BLOCK_DATA_LEN 19 |
Ivan Kluchnikov | 5c2f9fb | 2012-02-05 02:27:17 +0400 | [diff] [blame] | 44 | |
| 45 | #define BLOCK_LEN 23 |
| 46 | |
| 47 | uint16_t bvci = BVCI; |
| 48 | uint16_t nsei = NSEI; |
| 49 | uint8_t TFI; |
| 50 | struct bssgp_bvc_ctx *bctx = btsctx_alloc(bvci, nsei); |
| 51 | struct gprs_nsvc *nsvc; |
| 52 | struct gprs_ns_inst *sgsn_nsi; |
| 53 | struct sgsn_instance *sgsn; |
| 54 | void *tall_bsc_ctx; |
| 55 | |
| 56 | // Send RLC data to OpenBTS. |
Ivan Kluchnikov | 8aa4c52 | 2012-02-20 15:15:12 +0400 | [diff] [blame] | 57 | void sendRLC(uint32_t tlli, uint8_t *pdu, unsigned startIndex, unsigned endIndex, unsigned bsn, unsigned fbi) |
Ivan Kluchnikov | 5c2f9fb | 2012-02-05 02:27:17 +0400 | [diff] [blame] | 58 | { |
Ivan Kluchnikov | 8aa4c52 | 2012-02-20 15:15:12 +0400 | [diff] [blame] | 59 | unsigned spareLen = 0; |
Ivan Kluchnikov | 5c2f9fb | 2012-02-05 02:27:17 +0400 | [diff] [blame] | 60 | BitVector resultVector(BLOCK_LEN*8); |
| 61 | resultVector.unhex("2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b"); |
Ivan Kluchnikov | 8aa4c52 | 2012-02-20 15:15:12 +0400 | [diff] [blame] | 62 | RlcMacDownlinkDataBlock_t * dataBlock = (RlcMacDownlinkDataBlock_t *)malloc(sizeof(RlcMacDownlinkDataBlock_t)); |
| 63 | dataBlock->PAYLOAD_TYPE = 0; |
| 64 | dataBlock->RRBP = 0; |
| 65 | dataBlock->SP = 1; |
| 66 | dataBlock->USF = 1; |
| 67 | dataBlock->PR = 0; |
| 68 | dataBlock->TFI = 20; |
| 69 | dataBlock->FBI = fbi; |
| 70 | dataBlock->BSN = bsn; |
| 71 | if ((endIndex-startIndex) < 20) |
| 72 | { |
| 73 | dataBlock->E_1 = 0; |
| 74 | dataBlock->LENGTH_INDICATOR[0] = endIndex-startIndex; |
| 75 | dataBlock->M[0] = 0; |
| 76 | dataBlock->E[0] = 1; |
| 77 | spareLen = 19 - dataBlock->LENGTH_INDICATOR[0]; |
| 78 | } |
| 79 | else |
| 80 | { |
| 81 | dataBlock->E_1 = 1; |
| 82 | } |
| 83 | unsigned j = 0; |
| 84 | for(unsigned i = startIndex; i < endIndex; i++) |
| 85 | { |
| 86 | dataBlock->RLC_DATA[j] = pdu[i]; |
| 87 | j++; |
| 88 | } |
| 89 | for(unsigned i = j; i < j + spareLen; i++) |
| 90 | { |
| 91 | dataBlock->RLC_DATA[i] = 0x2b; |
| 92 | } |
| 93 | encode_gsm_rlcmac_downlink_data(&resultVector, dataBlock); |
| 94 | free(dataBlock); |
Ivan Kluchnikov | 5c2f9fb | 2012-02-05 02:27:17 +0400 | [diff] [blame] | 95 | sendToOpenBTS(&resultVector); |
| 96 | } |
| 97 | |
| 98 | /* Receive a BSSGP PDU from a BSS on a PTP BVCI */ |
| 99 | int gprs_bssgp_bss_rx_ptp(struct msgb *msg, struct tlv_parsed *tp, struct bssgp_bvc_ctx *bctx) |
| 100 | { |
| 101 | struct bssgp_normal_hdr *bgph = (struct bssgp_normal_hdr *) msgb_bssgph(msg); |
| 102 | uint8_t pdu_type = bgph->pdu_type; |
| 103 | uint8_t pdu[MAX_LEN_PDU]; |
| 104 | unsigned rc = 0; |
| 105 | unsigned dataIndex = 0; |
| 106 | unsigned numBlocks = 0; |
| 107 | unsigned i = 0; |
| 108 | unsigned j = 0; |
| 109 | unsigned pduIndex = 0; |
Ivan Kluchnikov | 8aa4c52 | 2012-02-20 15:15:12 +0400 | [diff] [blame] | 110 | unsigned fbi = 0; |
Ivan Kluchnikov | 5c2f9fb | 2012-02-05 02:27:17 +0400 | [diff] [blame] | 111 | struct bssgp_ud_hdr *budh; |
| 112 | |
| 113 | /* If traffic is received on a BVC that is marked as blocked, the |
| 114 | * received PDU shall not be accepted and a STATUS PDU (Cause value: |
| 115 | * BVC Blocked) shall be sent to the peer entity on the signalling BVC */ |
| 116 | if (bctx->state & BVC_S_BLOCKED && pdu_type != BSSGP_PDUT_STATUS) |
| 117 | { |
| 118 | uint16_t bvci = msgb_bvci(msg); |
| 119 | LOGP(DBSSGP, LOGL_NOTICE, "rx BVC_S_BLOCKED\n"); |
| 120 | return bssgp_tx_status(BSSGP_CAUSE_BVCI_BLOCKED, &bvci, msg); |
| 121 | } |
| 122 | |
| 123 | switch (pdu_type) { |
| 124 | case BSSGP_PDUT_DL_UNITDATA: |
| 125 | LOGP(DBSSGP, LOGL_NOTICE, "rx BSSGP_PDUT_DL_UNITDATA\n"); |
| 126 | budh = (struct bssgp_ud_hdr *) msgb_bssgph(msg); |
| 127 | LOGP(DBSSGP, LOGL_NOTICE, "rx BSSGP TLLI=0x%08x \n", ntohl(budh->tlli)); |
| 128 | for (i = 4; i < MAX_LEN_PDU; i++) |
| 129 | { |
Ivan Kluchnikov | 8aa4c52 | 2012-02-20 15:15:12 +0400 | [diff] [blame] | 130 | //LOGP(DBSSGP, LOGL_NOTICE, "SERCH data = -0x%02x\n", budh ->data[i]); |
Ivan Kluchnikov | 5c2f9fb | 2012-02-05 02:27:17 +0400 | [diff] [blame] | 131 | if(budh ->data[i] == IE_PDU) |
| 132 | { |
| 133 | pduIndex = i+2; |
| 134 | break; |
| 135 | } |
| 136 | } |
| 137 | for (i = pduIndex; i < pduIndex + (budh->data[pduIndex-1]&0x7f); i++) |
| 138 | { |
Ivan Kluchnikov | 8aa4c52 | 2012-02-20 15:15:12 +0400 | [diff] [blame] | 139 | //LOGP(DBSSGP, LOGL_NOTICE, "-0x%02x\n", budh ->data[i]); |
Ivan Kluchnikov | 5c2f9fb | 2012-02-05 02:27:17 +0400 | [diff] [blame] | 140 | pdu[dataIndex] = budh ->data[i]; |
| 141 | dataIndex++; |
| 142 | } |
| 143 | DEBUGP(DBSSGP, "BSSGP Catch from SGSN=%u octets. Send it to OpenBTS.\n", dataIndex); |
Ivan Kluchnikov | 8aa4c52 | 2012-02-20 15:15:12 +0400 | [diff] [blame] | 144 | sendToGSMTAP(pdu,dataIndex); |
| 145 | if (dataIndex > BLOCK_DATA_LEN + 1) |
Ivan Kluchnikov | 5c2f9fb | 2012-02-05 02:27:17 +0400 | [diff] [blame] | 146 | { |
| 147 | int blockDataLen = BLOCK_DATA_LEN; |
| 148 | numBlocks = dataIndex/BLOCK_DATA_LEN; |
| 149 | int ost = dataIndex%BLOCK_DATA_LEN; |
| 150 | int startIndex = 0; |
| 151 | int endIndex = 0; |
| 152 | if (dataIndex%BLOCK_DATA_LEN > 0) |
| 153 | { |
| 154 | numBlocks++; |
| 155 | } |
| 156 | for (i = 0; i < numBlocks; i++) |
| 157 | { |
| 158 | if (i == numBlocks-1) |
| 159 | { |
Ivan Kluchnikov | 8aa4c52 | 2012-02-20 15:15:12 +0400 | [diff] [blame] | 160 | if (ost > 0) |
| 161 | { |
| 162 | blockDataLen = ost; |
| 163 | } |
| 164 | fbi = 1; |
Ivan Kluchnikov | 5c2f9fb | 2012-02-05 02:27:17 +0400 | [diff] [blame] | 165 | } |
Ivan Kluchnikov | 8aa4c52 | 2012-02-20 15:15:12 +0400 | [diff] [blame] | 166 | endIndex = startIndex + blockDataLen; |
| 167 | sendRLC(ntohl(budh->tlli), pdu, startIndex, endIndex, i, fbi); |
Ivan Kluchnikov | 5c2f9fb | 2012-02-05 02:27:17 +0400 | [diff] [blame] | 168 | startIndex += blockDataLen; |
| 169 | } |
| 170 | } |
| 171 | else |
| 172 | { |
Ivan Kluchnikov | 8aa4c52 | 2012-02-20 15:15:12 +0400 | [diff] [blame] | 173 | sendRLC(ntohl(budh->tlli), pdu, 0, dataIndex, 0, 1); |
Ivan Kluchnikov | 5c2f9fb | 2012-02-05 02:27:17 +0400 | [diff] [blame] | 174 | } |
| 175 | break; |
| 176 | case BSSGP_PDUT_PAGING_PS: |
| 177 | LOGP(DBSSGP, LOGL_NOTICE, "rx BSSGP_PDUT_PAGING_PS\n"); |
| 178 | break; |
| 179 | case BSSGP_PDUT_PAGING_CS: |
| 180 | LOGP(DBSSGP, LOGL_NOTICE, "rx BSSGP_PDUT_PAGING_CS\n"); |
| 181 | break; |
| 182 | case BSSGP_PDUT_RA_CAPA_UPDATE_ACK: |
| 183 | LOGP(DBSSGP, LOGL_NOTICE, "rx BSSGP_PDUT_RA_CAPA_UPDATE_ACK\n"); |
| 184 | break; |
| 185 | case BSSGP_PDUT_FLOW_CONTROL_BVC_ACK: |
| 186 | LOGP(DBSSGP, LOGL_NOTICE, "rx BSSGP_PDUT_FLOW_CONTROL_BVC_ACK\n"); |
| 187 | break; |
| 188 | case BSSGP_PDUT_FLOW_CONTROL_MS_ACK: |
| 189 | LOGP(DBSSGP, LOGL_NOTICE, "rx BSSGP_PDUT_FLOW_CONTROL_MS_ACK\n"); |
| 190 | break; |
| 191 | default: |
| 192 | DEBUGP(DBSSGP, "BSSGP BVCI=%u PDU type 0x%02x unknown\n", bctx->bvci, pdu_type); |
| 193 | rc = bssgp_tx_status(BSSGP_CAUSE_PROTO_ERR_UNSPEC, NULL, msg); |
| 194 | break; |
| 195 | } |
| 196 | return rc; |
| 197 | } |
| 198 | |
| 199 | /* Receive a BSSGP PDU from a SGSN on a SIGNALLING BVCI */ |
| 200 | int gprs_bssgp_bss_rx_sign(struct msgb *msg, struct tlv_parsed *tp, struct bssgp_bvc_ctx *bctx) |
| 201 | { |
| 202 | struct bssgp_normal_hdr *bgph = (struct bssgp_normal_hdr *) msgb_bssgph(msg); |
| 203 | int rc = 0; |
| 204 | switch (bgph->pdu_type) { |
| 205 | case BSSGP_PDUT_STATUS: |
| 206 | /* Some exception has occurred */ |
| 207 | DEBUGP(DBSSGP, "BSSGP BVCI=%u Rx BVC STATUS\n", bctx->bvci); |
| 208 | /* FIXME: send NM_STATUS.ind to NM */ |
| 209 | break; |
| 210 | case BSSGP_PDUT_SUSPEND_ACK: |
| 211 | LOGP(DBSSGP, LOGL_NOTICE, "rx BSSGP_PDUT_SUSPEND_ACK\n"); |
| 212 | break; |
| 213 | case BSSGP_PDUT_SUSPEND_NACK: |
| 214 | LOGP(DBSSGP, LOGL_NOTICE, "rx BSSGP_PDUT_SUSPEND_NACK\n"); |
| 215 | break; |
| 216 | case BSSGP_PDUT_BVC_RESET_ACK: |
| 217 | LOGP(DBSSGP, LOGL_NOTICE, "rx BSSGP_PDUT_BVC_RESET_ACK\n"); |
| 218 | break; |
| 219 | case BSSGP_PDUT_PAGING_PS: |
| 220 | LOGP(DBSSGP, LOGL_NOTICE, "rx BSSGP_PDUT_PAGING_PS\n"); |
| 221 | break; |
| 222 | case BSSGP_PDUT_PAGING_CS: |
| 223 | LOGP(DBSSGP, LOGL_NOTICE, "rx BSSGP_PDUT_PAGING_CS\n"); |
| 224 | break; |
| 225 | case BSSGP_PDUT_RESUME_ACK: |
| 226 | LOGP(DBSSGP, LOGL_NOTICE, "rx BSSGP_PDUT_RESUME_ACK\n"); |
| 227 | break; |
| 228 | case BSSGP_PDUT_RESUME_NACK: |
| 229 | LOGP(DBSSGP, LOGL_NOTICE, "rx BSSGP_PDUT_RESUME_NACK\n"); |
| 230 | break; |
| 231 | case BSSGP_PDUT_FLUSH_LL: |
| 232 | LOGP(DBSSGP, LOGL_NOTICE, "rx BSSGP_PDUT_FLUSH_LL\n"); |
| 233 | break; |
| 234 | case BSSGP_PDUT_BVC_BLOCK_ACK: |
| 235 | LOGP(DBSSGP, LOGL_NOTICE, "rx BSSGP_PDUT_SUSPEND_ACK\n"); |
| 236 | break; |
| 237 | case BSSGP_PDUT_BVC_UNBLOCK_ACK: |
| 238 | LOGP(DBSSGP, LOGL_NOTICE, "rx BSSGP_PDUT_BVC_UNBLOCK_ACK\n"); |
| 239 | break; |
| 240 | case BSSGP_PDUT_SGSN_INVOKE_TRACE: |
| 241 | LOGP(DBSSGP, LOGL_NOTICE, "rx BSSGP_PDUT_SGSN_INVOKE_TRACE\n"); |
| 242 | break; |
| 243 | default: |
| 244 | DEBUGP(DBSSGP, "BSSGP BVCI=%u Rx PDU type 0x%02x unknown\n", bctx->bvci, bgph->pdu_type); |
| 245 | rc = bssgp_tx_status(BSSGP_CAUSE_PROTO_ERR_UNSPEC, NULL, msg); |
| 246 | break; |
| 247 | } |
| 248 | return rc; |
| 249 | } |
| 250 | |
| 251 | int gprs_bssgp_bss_rcvmsg(struct msgb *msg) |
| 252 | { |
| 253 | struct bssgp_normal_hdr *bgph = (struct bssgp_normal_hdr *) msgb_bssgph(msg); |
| 254 | struct bssgp_ud_hdr *budh = (struct bssgp_ud_hdr *) msgb_bssgph(msg); |
| 255 | struct tlv_parsed tp; |
| 256 | uint8_t pdu_type = bgph->pdu_type; |
| 257 | uint16_t ns_bvci = msgb_bvci(msg); |
| 258 | int data_len; |
| 259 | int rc = 0; |
| 260 | |
| 261 | /* Identifiers from DOWN: NSEI, BVCI (both in msg->cb) */ |
| 262 | |
| 263 | /* UNITDATA BSSGP headers have TLLI in front */ |
| 264 | if (pdu_type != BSSGP_PDUT_UL_UNITDATA && pdu_type != BSSGP_PDUT_DL_UNITDATA) |
| 265 | { |
| 266 | data_len = msgb_bssgp_len(msg) - sizeof(*bgph); |
| 267 | rc = bssgp_tlv_parse(&tp, bgph->data, data_len); |
| 268 | } |
| 269 | else |
| 270 | { |
| 271 | data_len = msgb_bssgp_len(msg) - sizeof(*budh); |
| 272 | rc = bssgp_tlv_parse(&tp, budh->data, data_len); |
| 273 | } |
| 274 | |
| 275 | /* look-up or create the BTS context for this BVC */ |
| 276 | bctx = btsctx_by_bvci_nsei(ns_bvci, msgb_nsei(msg)); |
| 277 | |
| 278 | /* Only a RESET PDU can create a new BVC context */ |
| 279 | if (!bctx) |
| 280 | { |
| 281 | bctx = btsctx_alloc(ns_bvci, msgb_nsei(msg)); |
| 282 | } |
| 283 | |
| 284 | if (!bctx && pdu_type != BSSGP_PDUT_BVC_RESET_ACK) |
| 285 | { |
| 286 | LOGP(DBSSGP, LOGL_NOTICE, "NSEI=%u/BVCI=%u Rejecting PDU " |
| 287 | "type %u for unknown BVCI\n", msgb_nsei(msg), ns_bvci, |
| 288 | pdu_type); |
| 289 | return bssgp_tx_status(BSSGP_CAUSE_UNKNOWN_BVCI, NULL, msg); |
| 290 | } |
| 291 | |
| 292 | if (bctx) |
| 293 | { |
| 294 | log_set_context(BSC_CTX_BVC, bctx); |
| 295 | rate_ctr_inc(&bctx->ctrg->ctr[BSSGP_CTR_PKTS_IN]); |
| 296 | rate_ctr_add(&bctx->ctrg->ctr[BSSGP_CTR_BYTES_IN], msgb_bssgp_len(msg)); |
| 297 | } |
| 298 | |
| 299 | if (ns_bvci == BVCI_SIGNALLING) |
| 300 | { |
| 301 | LOGP(DBSSGP, LOGL_NOTICE, "rx BVCI_SIGNALLING gprs_bssgp_rx_sign\n"); |
| 302 | rc = gprs_bssgp_bss_rx_sign(msg, &tp, bctx); |
| 303 | } |
| 304 | else if (ns_bvci == BVCI_PTM) |
| 305 | { |
| 306 | LOGP(DBSSGP, LOGL_NOTICE, "rx BVCI_PTM bssgp_tx_status\n"); |
| 307 | rc = bssgp_tx_status(BSSGP_CAUSE_PDU_INCOMP_FEAT, NULL, msg); |
| 308 | } |
| 309 | else |
| 310 | { |
| 311 | LOGP(DBSSGP, LOGL_NOTICE, "rx BVCI_PTP gprs_bssgp_rx_ptp\n"); |
| 312 | rc = gprs_bssgp_bss_rx_ptp(msg, &tp, bctx); |
| 313 | } |
| 314 | return rc; |
| 315 | } |
| 316 | |
| 317 | |
| 318 | int sgsn_ns_cb(enum gprs_ns_evt event, struct gprs_nsvc *nsvc, struct msgb *msg, uint16_t bvci) |
| 319 | { |
| 320 | int rc = 0; |
| 321 | switch (event) { |
| 322 | case GPRS_NS_EVT_UNIT_DATA: |
| 323 | /* hand the message into the BSSGP implementation */ |
| 324 | rc = gprs_bssgp_bss_rcvmsg(msg); |
| 325 | break; |
| 326 | default: |
| 327 | LOGP(DGPRS, LOGL_ERROR, "RLCMAC: Unknown event %u from NS\n", event); |
| 328 | if (msg) |
| 329 | talloc_free(msg); |
| 330 | rc = -EIO; |
| 331 | break; |
| 332 | } |
| 333 | return rc; |
| 334 | } |
| 335 | |
| 336 | // Send RLC data to SGSN. |
| 337 | void sendToSGSN(uint8_t tfi, uint32_t tlli, uint8_t * rlc_data, unsigned dataLen) |
| 338 | { |
| 339 | const uint8_t qos_profile = QOS_PROFILE; |
| 340 | struct msgb *llc_pdu; |
| 341 | unsigned msgLen = NS_HDR_LEN + BSSGP_HDR_LEN + dataLen; |
| 342 | TFI = tfi; |
| 343 | bctx->cell_id = CELL_ID; |
| 344 | bctx->nsei = NSEI; |
| 345 | bctx->ra_id.mnc = MNC; |
| 346 | bctx->ra_id.mcc = MCC; |
| 347 | bctx->ra_id.lac = LAC; |
| 348 | bctx->ra_id.rac = RAC; |
| 349 | bctx->bvci = BVCI; |
| 350 | LOGP(DBSSGP, LOGL_DEBUG, "Data len %u TLLI 0x%08x , TFI 0x%02x", dataLen, tlli, tfi); |
| 351 | //for (unsigned i = 0; i < dataLen; i++) |
| 352 | // LOGP(DBSSGP, LOGL_DEBUG, " Data[%u] = %u", i, rlc_data[i]); |
| 353 | llc_pdu = msgb_alloc_headroom(msgLen, msgLen,"llc_pdu"); |
| 354 | msgb_tvlv_push(llc_pdu, BSSGP_IE_LLC_PDU, sizeof(uint8_t)*dataLen, rlc_data); |
| 355 | bssgp_tx_ul_ud(bctx, tlli, &qos_profile, llc_pdu); |
| 356 | } |
| 357 | |
| 358 | void RLCMACServer() |
| 359 | { |
| 360 | uint16_t nsvci = NSVCI; |
| 361 | |
| 362 | // Socket for reading BitVectors (RLC/MAC Frames) from OpenBTS application. |
| 363 | Thread RLCMACInterface; |
| 364 | RLCMACInterface.start(RLCMACSocket,NULL); |
| 365 | |
| 366 | osmo_init_logging(&log_info); |
| 367 | sgsn_nsi = gprs_ns_instantiate(&sgsn_ns_cb); |
| 368 | bssgp_nsi = sgsn_nsi; |
| 369 | |
| 370 | if (!bssgp_nsi) |
| 371 | { |
| 372 | LOGP(DGPRS, LOGL_ERROR, "Unable to instantiate NS\n"); |
| 373 | exit(1); |
| 374 | } |
| 375 | |
| 376 | bctx->cell_id = CELL_ID; |
| 377 | bctx->nsei = NSEI; |
| 378 | bctx->ra_id.mnc = MNC; |
| 379 | bctx->ra_id.mcc = MCC; |
| 380 | bctx->ra_id.lac = LAC; |
| 381 | bctx->ra_id.rac = RAC; |
| 382 | bctx->bvci = BVCI; |
| 383 | uint8_t cause = 39; |
| 384 | gprs_ns_nsip_listen(sgsn_nsi); |
| 385 | |
| 386 | struct sockaddr_in dest; |
| 387 | dest.sin_family = AF_INET; |
| 388 | dest.sin_port = htons(SGSN_PORT); |
| 389 | inet_aton(SGSN_IP, &dest.sin_addr); |
| 390 | |
| 391 | nsvc = nsip_connect(sgsn_nsi, &dest, nsei, nsvci); |
| 392 | unsigned i = 0; |
| 393 | while (1) |
| 394 | { |
| 395 | osmo_select_main(0); |
| 396 | if (i == 7) |
| 397 | { |
Ivan Kluchnikov | 8aa4c52 | 2012-02-20 15:15:12 +0400 | [diff] [blame] | 398 | bssgp_tx_bvc_reset(bctx, bvci, cause); |
Ivan Kluchnikov | 5c2f9fb | 2012-02-05 02:27:17 +0400 | [diff] [blame] | 399 | } |
| 400 | i++; |
| 401 | } |
| 402 | } |