Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 1 | /* pcu_l1_if.cpp |
| 2 | * |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 3 | * Copyright (C) 2012 Andreas Eversberg <jolly@eversberg.eu> |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 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 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 20 | #include <stdio.h> |
| 21 | #include <unistd.h> |
| 22 | #include <stdlib.h> |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 23 | #include <string.h> |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 24 | #include <errno.h> |
| 25 | #include <assert.h> |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 26 | #include <sys/socket.h> |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 27 | #include <sys/un.h> |
Andreas Eversberg | 81a12be | 2013-03-16 16:16:41 +0100 | [diff] [blame] | 28 | #include <arpa/inet.h> |
Max | 1187a77 | 2018-01-26 13:31:42 +0100 | [diff] [blame] | 29 | |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 30 | extern "C" { |
| 31 | #include <osmocom/core/talloc.h> |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 32 | #include <osmocom/core/select.h> |
| 33 | #include <osmocom/core/msgb.h> |
Max | 528ff39 | 2016-02-22 11:42:33 +0100 | [diff] [blame] | 34 | #include <osmocom/core/gsmtap_util.h> |
| 35 | #include <osmocom/core/gsmtap.h> |
Max | 1187a77 | 2018-01-26 13:31:42 +0100 | [diff] [blame] | 36 | #include <osmocom/core/bitvec.h> |
| 37 | #include <osmocom/core/logging.h> |
| 38 | #include <osmocom/core/utils.h> |
| 39 | #include <osmocom/gsm/l1sap.h> |
| 40 | #include <osmocom/gsm/protocol/gsm_04_08.h> |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 41 | } |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 42 | |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 43 | #include <gprs_rlcmac.h> |
| 44 | #include <pcu_l1_if.h> |
| 45 | #include <gprs_debug.h> |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 46 | #include <gprs_bssgp_pcu.h> |
Harald Welte | 68fc127 | 2016-11-16 22:48:33 +0100 | [diff] [blame] | 47 | #include <osmocom/pcu/pcuif_proto.h> |
Holger Hans Peter Freyther | 67ed34e | 2013-10-17 17:01:54 +0200 | [diff] [blame] | 48 | #include <bts.h> |
Max | 6dc90b8 | 2018-02-19 17:17:28 +0100 | [diff] [blame] | 49 | #include <pdch.h> |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 50 | |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 51 | // FIXME: move this, when changed from c++ to c. |
| 52 | extern "C" { |
Max | 58b6646 | 2016-05-13 10:34:15 +0200 | [diff] [blame] | 53 | void *l1if_open_pdch(uint8_t trx_no, uint32_t hlayer1, |
| 54 | struct gsmtap_inst *gsmtap); |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 55 | int l1if_connect_pdch(void *obj, uint8_t ts); |
| 56 | int l1if_pdch_req(void *obj, uint8_t ts, int is_ptcch, uint32_t fn, |
| 57 | uint16_t arfcn, uint8_t block_nr, uint8_t *data, uint8_t len); |
| 58 | } |
| 59 | |
Andreas Eversberg | e266bd4 | 2012-07-13 14:00:21 +0200 | [diff] [blame] | 60 | extern void *tall_pcu_ctx; |
| 61 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 62 | /* |
| 63 | * PCU messages |
| 64 | */ |
Ivan Kluchnikov | e3a0596 | 2012-03-18 15:48:51 +0400 | [diff] [blame] | 65 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 66 | struct msgb *pcu_msgb_alloc(uint8_t msg_type, uint8_t bts_nr) |
| 67 | { |
| 68 | struct msgb *msg; |
| 69 | struct gsm_pcu_if *pcu_prim; |
| 70 | |
| 71 | msg = msgb_alloc(sizeof(struct gsm_pcu_if), "pcu_sock_tx"); |
| 72 | if (!msg) |
| 73 | return NULL; |
| 74 | msgb_put(msg, sizeof(struct gsm_pcu_if)); |
| 75 | pcu_prim = (struct gsm_pcu_if *) msg->data; |
| 76 | pcu_prim->msg_type = msg_type; |
| 77 | pcu_prim->bts_nr = bts_nr; |
Ivan Kluchnikov | e3a0596 | 2012-03-18 15:48:51 +0400 | [diff] [blame] | 78 | |
| 79 | return msg; |
| 80 | } |
| 81 | |
Max | 0a8fae8 | 2017-03-08 18:53:30 +0100 | [diff] [blame] | 82 | const struct value_string gsm_pcu_if_text_type_names[] = { |
| 83 | OSMO_VALUE_STRING(PCU_VERSION), |
| 84 | OSMO_VALUE_STRING(PCU_OML_ALERT), |
| 85 | { 0, NULL } |
| 86 | }; |
| 87 | |
| 88 | int pcu_tx_txt_ind(enum gsm_pcu_if_text_type t, const char *fmt, ...) |
| 89 | { |
| 90 | struct gsm_pcu_if *pcu_prim; |
| 91 | struct gsm_pcu_if_txt_ind *txt; |
| 92 | va_list ap; |
| 93 | char *rep; |
| 94 | struct msgb *msg = pcu_msgb_alloc(PCU_IF_MSG_TXT_IND, 0); |
| 95 | if (!msg) |
| 96 | return -ENOMEM; |
| 97 | |
| 98 | pcu_prim = (struct gsm_pcu_if *) msg->data; |
| 99 | txt = &pcu_prim->u.txt_ind; |
| 100 | txt->type = t; |
| 101 | |
| 102 | va_start(ap, fmt); |
| 103 | rep = talloc_vasprintf(tall_pcu_ctx, fmt, ap); |
| 104 | va_end(ap); |
| 105 | |
| 106 | if (!rep) |
| 107 | return -ENOMEM; |
| 108 | |
| 109 | osmo_strlcpy(txt->text, rep, TXT_MAX_LEN); |
| 110 | talloc_free(rep); |
| 111 | |
| 112 | LOGP(DL1IF, LOGL_INFO, "Sending %s TXT as %s to BTS\n", txt->text, |
| 113 | get_value_string(gsm_pcu_if_text_type_names, t)); |
| 114 | |
| 115 | return pcu_sock_send(msg); |
| 116 | } |
| 117 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 118 | static int pcu_tx_act_req(uint8_t trx, uint8_t ts, uint8_t activate) |
Ivan Kluchnikov | 4277f0c | 2012-04-12 14:24:35 +0400 | [diff] [blame] | 119 | { |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 120 | struct msgb *msg; |
| 121 | struct gsm_pcu_if *pcu_prim; |
| 122 | struct gsm_pcu_if_act_req *act_req; |
| 123 | |
| 124 | LOGP(DL1IF, LOGL_INFO, "Sending %s request: trx=%d ts=%d\n", |
| 125 | (activate) ? "activate" : "deactivate", trx, ts); |
| 126 | |
| 127 | msg = pcu_msgb_alloc(PCU_IF_MSG_ACT_REQ, 0); |
| 128 | if (!msg) |
| 129 | return -ENOMEM; |
| 130 | pcu_prim = (struct gsm_pcu_if *) msg->data; |
| 131 | act_req = &pcu_prim->u.act_req; |
| 132 | act_req->activate = activate; |
| 133 | act_req->trx_nr = trx; |
| 134 | act_req->ts_nr = ts; |
| 135 | |
| 136 | return pcu_sock_send(msg); |
| 137 | } |
| 138 | |
| 139 | static int pcu_tx_data_req(uint8_t trx, uint8_t ts, uint8_t sapi, |
| 140 | uint16_t arfcn, uint32_t fn, uint8_t block_nr, uint8_t *data, |
| 141 | uint8_t len) |
| 142 | { |
| 143 | struct msgb *msg; |
| 144 | struct gsm_pcu_if *pcu_prim; |
| 145 | struct gsm_pcu_if_data *data_req; |
Philipp Maier | 7e8e397 | 2018-04-10 13:31:45 +0200 | [diff] [blame] | 146 | int current_fn = get_current_fn(); |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 147 | |
| 148 | LOGP(DL1IF, LOGL_DEBUG, "Sending data request: trx=%d ts=%d sapi=%d " |
Philipp Maier | 7e8e397 | 2018-04-10 13:31:45 +0200 | [diff] [blame] | 149 | "arfcn=%d fn=%d cur_fn=%d block=%d data=%s\n", trx, ts, sapi, arfcn, fn, current_fn, |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 150 | block_nr, osmo_hexdump(data, len)); |
| 151 | |
| 152 | msg = pcu_msgb_alloc(PCU_IF_MSG_DATA_REQ, 0); |
| 153 | if (!msg) |
| 154 | return -ENOMEM; |
| 155 | pcu_prim = (struct gsm_pcu_if *) msg->data; |
| 156 | data_req = &pcu_prim->u.data_req; |
| 157 | |
| 158 | data_req->sapi = sapi; |
| 159 | data_req->fn = fn; |
| 160 | data_req->arfcn = arfcn; |
| 161 | data_req->trx_nr = trx; |
| 162 | data_req->ts_nr = ts; |
| 163 | data_req->block_nr = block_nr; |
| 164 | memcpy(data_req->data, data, len); |
| 165 | data_req->len = len; |
| 166 | |
| 167 | return pcu_sock_send(msg); |
| 168 | } |
| 169 | |
| 170 | void pcu_l1if_tx_pdtch(msgb *msg, uint8_t trx, uint8_t ts, uint16_t arfcn, |
| 171 | uint32_t fn, uint8_t block_nr) |
| 172 | { |
Max | b216c6b | 2017-09-01 11:00:39 +0200 | [diff] [blame] | 173 | #ifdef ENABLE_DIRECT_PHY |
Holger Hans Peter Freyther | b6acfda | 2013-10-17 19:41:11 +0200 | [diff] [blame] | 174 | struct gprs_rlcmac_bts *bts = bts_main_data(); |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 175 | |
Max | 528ff39 | 2016-02-22 11:42:33 +0100 | [diff] [blame] | 176 | if (bts->trx[trx].fl1h) { |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 177 | l1if_pdch_req(bts->trx[trx].fl1h, ts, 0, fn, arfcn, block_nr, |
| 178 | msg->data, msg->len); |
Max | 528ff39 | 2016-02-22 11:42:33 +0100 | [diff] [blame] | 179 | msgb_free(msg); |
| 180 | return; |
| 181 | } |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 182 | #endif |
Max | 528ff39 | 2016-02-22 11:42:33 +0100 | [diff] [blame] | 183 | pcu_tx_data_req(trx, ts, PCU_IF_SAPI_PDTCH, arfcn, fn, block_nr, |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 184 | msg->data, msg->len); |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 185 | msgb_free(msg); |
Ivan Kluchnikov | 4277f0c | 2012-04-12 14:24:35 +0400 | [diff] [blame] | 186 | } |
| 187 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 188 | void pcu_l1if_tx_ptcch(msgb *msg, uint8_t trx, uint8_t ts, uint16_t arfcn, |
| 189 | uint32_t fn, uint8_t block_nr) |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 190 | { |
Holger Hans Peter Freyther | b6acfda | 2013-10-17 19:41:11 +0200 | [diff] [blame] | 191 | struct gprs_rlcmac_bts *bts = bts_main_data(); |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 192 | |
Harald Welte | b1be611 | 2017-08-17 00:49:23 +0200 | [diff] [blame] | 193 | if (bts->gsmtap_categ_mask & (1 << PCU_GSMTAP_C_DL_PTCCH)) |
Harald Welte | bc219d5 | 2017-07-29 13:42:27 +0200 | [diff] [blame] | 194 | gsmtap_send(bts->gsmtap, arfcn, ts, GSMTAP_CHANNEL_PTCCH, 0, fn, 0, 0, msg->data, msg->len); |
Max | cad867e | 2016-04-21 14:35:55 +0200 | [diff] [blame] | 195 | #ifdef ENABLE_DIRECT_PHY |
Max | 528ff39 | 2016-02-22 11:42:33 +0100 | [diff] [blame] | 196 | if (bts->trx[trx].fl1h) { |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 197 | l1if_pdch_req(bts->trx[trx].fl1h, ts, 1, fn, arfcn, block_nr, |
| 198 | msg->data, msg->len); |
Max | 528ff39 | 2016-02-22 11:42:33 +0100 | [diff] [blame] | 199 | msgb_free(msg); |
| 200 | return; |
| 201 | } |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 202 | #endif |
Max | 528ff39 | 2016-02-22 11:42:33 +0100 | [diff] [blame] | 203 | pcu_tx_data_req(trx, ts, PCU_IF_SAPI_PTCCH, arfcn, fn, block_nr, |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 204 | msg->data, msg->len); |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 205 | msgb_free(msg); |
| 206 | } |
| 207 | |
Andreas Eversberg | 7b04501 | 2012-07-05 07:38:49 +0200 | [diff] [blame] | 208 | void pcu_l1if_tx_agch(bitvec * block, int plen) |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 209 | { |
Pau Espin Pedrol | 5854370 | 2019-09-30 19:07:16 +0200 | [diff] [blame^] | 210 | struct gprs_rlcmac_bts *bts = bts_main_data(); |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 211 | uint8_t data[23]; /* prefix PLEN */ |
Ivan Kluchnikov | e3a0596 | 2012-03-18 15:48:51 +0400 | [diff] [blame] | 212 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 213 | /* FIXME: why does OpenBTS has no PLEN and no fill in message? */ |
| 214 | bitvec_pack(block, data + 1); |
| 215 | data[0] = (plen << 2) | 0x01; |
Pau Espin Pedrol | 5854370 | 2019-09-30 19:07:16 +0200 | [diff] [blame^] | 216 | |
| 217 | if (bts->gsmtap_categ_mask & (1 << PCU_GSMTAP_C_DL_AGCH)) |
| 218 | gsmtap_send(bts->gsmtap, 0, 0, GSMTAP_CHANNEL_AGCH, 0, 0, 0, 0, data, 23); |
| 219 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 220 | pcu_tx_data_req(0, 0, PCU_IF_SAPI_AGCH, 0, 0, 0, data, 23); |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 221 | } |
| 222 | |
Holger Hans Peter Freyther | 52c911b | 2013-08-24 18:30:54 +0200 | [diff] [blame] | 223 | void pcu_l1if_tx_pch(bitvec * block, int plen, const char *imsi) |
Ivan Kluchnikov | c7e7f68 | 2012-06-29 22:53:15 +0400 | [diff] [blame] | 224 | { |
Pau Espin Pedrol | 5854370 | 2019-09-30 19:07:16 +0200 | [diff] [blame^] | 225 | struct gprs_rlcmac_bts *bts = bts_main_data(); |
Stefan Sperling | 143b2da | 2018-05-25 14:10:53 +0200 | [diff] [blame] | 226 | uint8_t data[3+1+23]; /* prefix PLEN */ |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 227 | |
| 228 | /* paging group */ |
| 229 | if (!imsi || strlen(imsi) < 3) |
| 230 | return; |
| 231 | imsi += strlen(imsi) - 3; |
| 232 | data[0] = imsi[0]; |
| 233 | data[1] = imsi[1]; |
| 234 | data[2] = imsi[2]; |
| 235 | |
Stefan Sperling | 143b2da | 2018-05-25 14:10:53 +0200 | [diff] [blame] | 236 | OSMO_ASSERT(block->data_len <= sizeof(data) - (3+1)); |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 237 | bitvec_pack(block, data + 3+1); |
| 238 | data[3] = (plen << 2) | 0x01; |
Pau Espin Pedrol | 5854370 | 2019-09-30 19:07:16 +0200 | [diff] [blame^] | 239 | |
| 240 | if (bts->gsmtap_categ_mask & (1 << PCU_GSMTAP_C_DL_PCH)) |
| 241 | gsmtap_send(bts->gsmtap, 0, 0, GSMTAP_CHANNEL_PCH, 0, 0, 0, 0, data + 4, 23); |
| 242 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 243 | pcu_tx_data_req(0, 0, PCU_IF_SAPI_PCH, 0, 0, 0, data, 23+3); |
Ivan Kluchnikov | c7e7f68 | 2012-06-29 22:53:15 +0400 | [diff] [blame] | 244 | } |
| 245 | |
Jacob Erlbeck | af75ce8 | 2015-08-26 13:22:28 +0200 | [diff] [blame] | 246 | extern "C" void pcu_rx_block_time(uint16_t arfcn, uint32_t fn, uint8_t ts_no) |
| 247 | { |
| 248 | BTS::main_bts()->set_current_block_frame_number(fn, 0); |
| 249 | } |
| 250 | |
| 251 | extern "C" void pcu_rx_ra_time(uint16_t arfcn, uint32_t fn, uint8_t ts_no) |
| 252 | { |
| 253 | /* access bursts may arrive some bursts earlier */ |
| 254 | BTS::main_bts()->set_current_block_frame_number(fn, 5); |
| 255 | } |
| 256 | |
Holger Hans Peter Freyther | 9ae367f | 2013-10-26 16:42:38 +0200 | [diff] [blame] | 257 | extern "C" int pcu_rx_data_ind_pdtch(uint8_t trx_no, uint8_t ts_no, uint8_t *data, |
Jacob Erlbeck | 20f6fd1 | 2015-06-08 11:05:45 +0200 | [diff] [blame] | 258 | uint8_t len, uint32_t fn, struct pcu_l1_meas *meas) |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 259 | { |
Holger Hans Peter Freyther | 9ae367f | 2013-10-26 16:42:38 +0200 | [diff] [blame] | 260 | struct gprs_rlcmac_pdch *pdch; |
| 261 | |
| 262 | pdch = &bts_main_data()->trx[trx_no].pdch[ts_no]; |
Jacob Erlbeck | 20f6fd1 | 2015-06-08 11:05:45 +0200 | [diff] [blame] | 263 | return pdch->rcv_block(data, len, fn, meas); |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 264 | } |
| 265 | |
Max | 84bf0fa | 2017-09-01 11:02:40 +0200 | [diff] [blame] | 266 | static int pcu_rx_data_ind_bcch(uint8_t *data, uint8_t len) |
| 267 | { |
| 268 | struct gprs_rlcmac_bts *bts = bts_main_data(); |
| 269 | |
| 270 | if (len == 0) { |
| 271 | bts->si13_is_set = false; |
| 272 | LOGP(DL1IF, LOGL_INFO, "Received PCU data indication with empty SI13: cache cleaned\n"); |
| 273 | return 0; |
| 274 | } |
| 275 | |
| 276 | if (len != GSM_MACBLOCK_LEN) { |
| 277 | LOGP(DL1IF, LOGL_ERROR, "Received PCU data indication with SI13 with unexpected length %u\n", len); |
| 278 | return -EINVAL; |
| 279 | } |
| 280 | |
| 281 | memcpy(bts->si13, data, GSM_MACBLOCK_LEN); |
| 282 | bts->si13_is_set = true; |
| 283 | |
| 284 | return 0; |
| 285 | } |
| 286 | |
Harald Welte | 717cdf5 | 2017-07-21 21:56:23 +0200 | [diff] [blame] | 287 | static int pcu_rx_data_ind(struct gsm_pcu_if_data *data_ind) |
Ivan Kluchnikov | e3a0596 | 2012-03-18 15:48:51 +0400 | [diff] [blame] | 288 | { |
Harald Welte | 717cdf5 | 2017-07-21 21:56:23 +0200 | [diff] [blame] | 289 | struct gprs_rlcmac_bts *bts = bts_main_data(); |
Max | 528ff39 | 2016-02-22 11:42:33 +0100 | [diff] [blame] | 290 | int rc; |
Philipp Maier | 7e8e397 | 2018-04-10 13:31:45 +0200 | [diff] [blame] | 291 | int current_fn = get_current_fn(); |
Jacob Erlbeck | 20f6fd1 | 2015-06-08 11:05:45 +0200 | [diff] [blame] | 292 | pcu_l1_meas meas; |
Max | b216c6b | 2017-09-01 11:00:39 +0200 | [diff] [blame] | 293 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 294 | LOGP(DL1IF, LOGL_DEBUG, "Data indication received: sapi=%d arfcn=%d " |
Philipp Maier | 7e8e397 | 2018-04-10 13:31:45 +0200 | [diff] [blame] | 295 | "fn=%d cur_fn=%d block=%d data=%s\n", data_ind->sapi, |
| 296 | data_ind->arfcn, data_ind->fn, current_fn, data_ind->block_nr, |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 297 | osmo_hexdump(data_ind->data, data_ind->len)); |
| 298 | |
Ivan Kluchnikov | e3a0596 | 2012-03-18 15:48:51 +0400 | [diff] [blame] | 299 | switch (data_ind->sapi) { |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 300 | case PCU_IF_SAPI_PDTCH: |
Max | b216c6b | 2017-09-01 11:00:39 +0200 | [diff] [blame] | 301 | meas.set_rssi(data_ind->rssi); |
Max | b216c6b | 2017-09-01 11:00:39 +0200 | [diff] [blame] | 302 | /* convert BER to % value */ |
| 303 | meas.set_ber(data_ind->ber10k / 100); |
| 304 | meas.set_bto(data_ind->ta_offs_qbits); |
| 305 | meas.set_link_qual(data_ind->lqual_cb / 10); |
Vadim Yanitskiy | f17dfc0 | 2019-07-09 16:16:35 +0700 | [diff] [blame] | 306 | |
Max | b216c6b | 2017-09-01 11:00:39 +0200 | [diff] [blame] | 307 | LOGP(DL1IF, LOGL_DEBUG, "Data indication with raw measurements received: BER10k = %d, BTO = %d, Q = %d\n", |
| 308 | data_ind->ber10k, data_ind->ta_offs_qbits, data_ind->lqual_cb); |
Vadim Yanitskiy | f17dfc0 | 2019-07-09 16:16:35 +0700 | [diff] [blame] | 309 | |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 310 | rc = pcu_rx_data_ind_pdtch(data_ind->trx_nr, data_ind->ts_nr, |
Andreas Eversberg | 570b44b | 2013-03-16 16:15:01 +0100 | [diff] [blame] | 311 | data_ind->data, data_ind->len, data_ind->fn, |
Jacob Erlbeck | 20f6fd1 | 2015-06-08 11:05:45 +0200 | [diff] [blame] | 312 | &meas); |
Ivan Kluchnikov | e3a0596 | 2012-03-18 15:48:51 +0400 | [diff] [blame] | 313 | break; |
Max | 84bf0fa | 2017-09-01 11:02:40 +0200 | [diff] [blame] | 314 | case PCU_IF_SAPI_BCCH: |
| 315 | rc = pcu_rx_data_ind_bcch(data_ind->data, data_ind->len); |
| 316 | break; |
Ivan Kluchnikov | e3a0596 | 2012-03-18 15:48:51 +0400 | [diff] [blame] | 317 | default: |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 318 | LOGP(DL1IF, LOGL_ERROR, "Received PCU data indication with " |
| 319 | "unsupported sapi %d\n", data_ind->sapi); |
| 320 | rc = -EINVAL; |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 321 | } |
Ivan Kluchnikov | e3a0596 | 2012-03-18 15:48:51 +0400 | [diff] [blame] | 322 | |
Harald Welte | b1be611 | 2017-08-17 00:49:23 +0200 | [diff] [blame] | 323 | if (rc < 0 && (bts->gsmtap_categ_mask & (1 <<PCU_GSMTAP_C_UL_UNKNOWN))) { |
Harald Welte | 717cdf5 | 2017-07-21 21:56:23 +0200 | [diff] [blame] | 324 | gsmtap_send(bts->gsmtap, data_ind->arfcn | GSMTAP_ARFCN_F_UPLINK, data_ind->ts_nr, |
| 325 | GSMTAP_CHANNEL_PACCH, 0, data_ind->fn, 0, 0, data_ind->data, data_ind->len); |
| 326 | } |
| 327 | |
Ivan Kluchnikov | e3a0596 | 2012-03-18 15:48:51 +0400 | [diff] [blame] | 328 | return rc; |
| 329 | } |
| 330 | |
Andreas Eversberg | a9be154 | 2012-09-27 09:23:24 +0200 | [diff] [blame] | 331 | static int pcu_rx_data_cnf(struct gsm_pcu_if_data *data_cnf) |
| 332 | { |
| 333 | int rc = 0; |
Philipp Maier | 7e8e397 | 2018-04-10 13:31:45 +0200 | [diff] [blame] | 334 | int current_fn = get_current_fn(); |
Andreas Eversberg | a9be154 | 2012-09-27 09:23:24 +0200 | [diff] [blame] | 335 | |
Philipp Maier | 7e8e397 | 2018-04-10 13:31:45 +0200 | [diff] [blame] | 336 | LOGP(DL1IF, LOGL_DEBUG, "Data confirm received: sapi=%d fn=%d cur_fn=%d\n", |
| 337 | data_cnf->sapi, data_cnf->fn, current_fn); |
Andreas Eversberg | a9be154 | 2012-09-27 09:23:24 +0200 | [diff] [blame] | 338 | |
| 339 | switch (data_cnf->sapi) { |
| 340 | case PCU_IF_SAPI_PCH: |
Andreas Eversberg | 8c3680d | 2012-10-08 12:30:56 +0200 | [diff] [blame] | 341 | if (data_cnf->data[2] == 0x3f) |
Holger Hans Peter Freyther | 40cfaa6 | 2013-10-26 19:49:16 +0200 | [diff] [blame] | 342 | BTS::main_bts()->rcv_imm_ass_cnf(data_cnf->data, data_cnf->fn); |
Andreas Eversberg | a9be154 | 2012-09-27 09:23:24 +0200 | [diff] [blame] | 343 | break; |
| 344 | default: |
| 345 | LOGP(DL1IF, LOGL_ERROR, "Received PCU data confirm with " |
| 346 | "unsupported sapi %d\n", data_cnf->sapi); |
| 347 | rc = -EINVAL; |
| 348 | } |
| 349 | |
| 350 | return rc; |
| 351 | } |
| 352 | |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 353 | // FIXME: remove this, when changed from c++ to c. |
Max | 878bd1f | 2016-07-20 13:05:05 +0200 | [diff] [blame] | 354 | extern "C" int pcu_rx_rts_req_pdtch(uint8_t trx, uint8_t ts, |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 355 | uint32_t fn, uint8_t block_nr) |
| 356 | { |
Holger Hans Peter Freyther | b6acfda | 2013-10-17 19:41:11 +0200 | [diff] [blame] | 357 | return gprs_rlcmac_rcv_rts_block(bts_main_data(), |
Max | 878bd1f | 2016-07-20 13:05:05 +0200 | [diff] [blame] | 358 | trx, ts, fn, block_nr); |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 359 | } |
| 360 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 361 | static int pcu_rx_rts_req(struct gsm_pcu_if_rts_req *rts_req) |
Ivan Kluchnikov | 5310d45 | 2012-04-17 22:00:31 +0400 | [diff] [blame] | 362 | { |
| 363 | int rc = 0; |
Philipp Maier | 7e8e397 | 2018-04-10 13:31:45 +0200 | [diff] [blame] | 364 | int current_fn = get_current_fn(); |
Ivan Kluchnikov | 5310d45 | 2012-04-17 22:00:31 +0400 | [diff] [blame] | 365 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 366 | LOGP(DL1IF, LOGL_DEBUG, "RTS request received: trx=%d ts=%d sapi=%d " |
Philipp Maier | 7e8e397 | 2018-04-10 13:31:45 +0200 | [diff] [blame] | 367 | "arfcn=%d fn=%d cur_fn=%d block=%d\n", rts_req->trx_nr, rts_req->ts_nr, |
| 368 | rts_req->sapi, rts_req->arfcn, rts_req->fn, current_fn, rts_req->block_nr); |
Ivan Kluchnikov | e3a0596 | 2012-03-18 15:48:51 +0400 | [diff] [blame] | 369 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 370 | switch (rts_req->sapi) { |
| 371 | case PCU_IF_SAPI_PDTCH: |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 372 | pcu_rx_rts_req_pdtch(rts_req->trx_nr, rts_req->ts_nr, |
Max | 878bd1f | 2016-07-20 13:05:05 +0200 | [diff] [blame] | 373 | rts_req->fn, rts_req->block_nr); |
Ivan Kluchnikov | e3a0596 | 2012-03-18 15:48:51 +0400 | [diff] [blame] | 374 | break; |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 375 | case PCU_IF_SAPI_PTCCH: |
| 376 | /* FIXME */ |
| 377 | { |
| 378 | struct msgb *msg = msgb_alloc(23, "l1_prim"); |
| 379 | memset(msgb_put(msg, 23), 0x2b, 23); |
| 380 | pcu_l1if_tx_ptcch(msg, rts_req->trx_nr, rts_req->ts_nr, |
| 381 | rts_req->arfcn, rts_req->fn, rts_req->block_nr); |
| 382 | } |
Ivan Kluchnikov | e3a0596 | 2012-03-18 15:48:51 +0400 | [diff] [blame] | 383 | break; |
| 384 | default: |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 385 | LOGP(DL1IF, LOGL_ERROR, "Received PCU RTS request with " |
| 386 | "unsupported sapi %d\n", rts_req->sapi); |
| 387 | rc = -EINVAL; |
| 388 | } |
| 389 | |
| 390 | return rc; |
| 391 | } |
| 392 | |
| 393 | static int pcu_rx_rach_ind(struct gsm_pcu_if_rach_ind *rach_ind) |
| 394 | { |
| 395 | int rc = 0; |
Philipp Maier | 7e8e397 | 2018-04-10 13:31:45 +0200 | [diff] [blame] | 396 | int current_fn = get_current_fn(); |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 397 | |
| 398 | LOGP(DL1IF, LOGL_INFO, "RACH request received: sapi=%d " |
Philipp Maier | 7e8e397 | 2018-04-10 13:31:45 +0200 | [diff] [blame] | 399 | "qta=%d, ra=%d, fn=%d, cur_fn=%d, is_11bit=%d\n", rach_ind->sapi, rach_ind->qta, |
| 400 | rach_ind->ra, rach_ind->fn, current_fn, rach_ind->is_11bit); |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 401 | |
| 402 | switch (rach_ind->sapi) { |
| 403 | case PCU_IF_SAPI_RACH: |
Holger Hans Peter Freyther | 02beed5 | 2013-10-26 20:56:20 +0200 | [diff] [blame] | 404 | rc = BTS::main_bts()->rcv_rach( |
Holger Hans Peter Freyther | b0250eb | 2013-10-17 13:46:19 +0200 | [diff] [blame] | 405 | rach_ind->ra, rach_ind->fn, |
bhargava | 959d1de | 2016-08-17 15:17:21 +0530 | [diff] [blame] | 406 | rach_ind->qta, rach_ind->is_11bit, |
| 407 | (ph_burst_type)rach_ind->burst_type); |
Ivan Kluchnikov | e3a0596 | 2012-03-18 15:48:51 +0400 | [diff] [blame] | 408 | break; |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 409 | default: |
| 410 | LOGP(DL1IF, LOGL_ERROR, "Received PCU rach request with " |
| 411 | "unsupported sapi %d\n", rach_ind->sapi); |
| 412 | rc = -EINVAL; |
Ivan Kluchnikov | e3a0596 | 2012-03-18 15:48:51 +0400 | [diff] [blame] | 413 | } |
| 414 | |
Ivan Kluchnikov | e3a0596 | 2012-03-18 15:48:51 +0400 | [diff] [blame] | 415 | return rc; |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 416 | } |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 417 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 418 | static int pcu_rx_info_ind(struct gsm_pcu_if_info_ind *info_ind) |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 419 | { |
Holger Hans Peter Freyther | b6acfda | 2013-10-17 19:41:11 +0200 | [diff] [blame] | 420 | struct gprs_rlcmac_bts *bts = bts_main_data(); |
Holger Hans Peter Freyther | e8d9a5f | 2013-07-28 19:11:20 +0200 | [diff] [blame] | 421 | struct gprs_bssgp_pcu *pcu; |
Andreas Eversberg | 2b91464 | 2012-07-19 13:06:26 +0200 | [diff] [blame] | 422 | struct gprs_rlcmac_pdch *pdch; |
Andreas Eversberg | 81a12be | 2013-03-16 16:16:41 +0100 | [diff] [blame] | 423 | struct in_addr ia; |
Harald Welte | bb47d95 | 2016-11-17 18:40:02 +0100 | [diff] [blame] | 424 | int rc = 0; |
| 425 | unsigned int trx, ts; |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 426 | int i; |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 427 | |
Andreas Eversberg | 8389fd0 | 2012-07-18 10:06:48 +0200 | [diff] [blame] | 428 | if (info_ind->version != PCU_IF_VERSION) { |
| 429 | fprintf(stderr, "PCU interface version number of BTS (%d) is " |
| 430 | "different (%d).\nPlease re-compile!\n", |
| 431 | info_ind->version, PCU_IF_VERSION); |
| 432 | exit(-1); |
| 433 | } |
| 434 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 435 | LOGP(DL1IF, LOGL_DEBUG, "Info indication received:\n"); |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 436 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 437 | if (!(info_ind->flags & PCU_IF_FLAG_ACTIVE)) { |
| 438 | LOGP(DL1IF, LOGL_NOTICE, "BTS not available\n"); |
Stefan Sperling | 5b22fb7 | 2018-02-14 19:46:33 +0100 | [diff] [blame] | 439 | if (!bts->active) |
| 440 | return -EAGAIN; |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 441 | bssgp_failed: |
Stefan Sperling | 5b22fb7 | 2018-02-14 19:46:33 +0100 | [diff] [blame] | 442 | bts->active = false; |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 443 | /* free all TBF */ |
Harald Welte | bb47d95 | 2016-11-17 18:40:02 +0100 | [diff] [blame] | 444 | for (trx = 0; trx < ARRAY_SIZE(bts->trx); trx++) { |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 445 | bts->trx[trx].arfcn = info_ind->trx[trx].arfcn; |
Harald Welte | bb47d95 | 2016-11-17 18:40:02 +0100 | [diff] [blame] | 446 | for (ts = 0; ts < ARRAY_SIZE(bts->trx[0].pdch); ts++) |
Holger Hans Peter Freyther | 09ef27a | 2013-10-20 16:37:05 +0200 | [diff] [blame] | 447 | bts->trx[trx].pdch[ts].free_resources(); |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 448 | } |
Daniel Willmann | 6d8884d | 2014-06-04 18:30:59 +0200 | [diff] [blame] | 449 | gprs_bssgp_destroy(); |
| 450 | exit(0); |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 451 | } |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 452 | LOGP(DL1IF, LOGL_INFO, "BTS available\n"); |
Neels Hofmeyr | bdc55fa | 2018-02-21 00:39:07 +0100 | [diff] [blame] | 453 | LOGP(DL1IF, LOGL_DEBUG, " mcc=%03u\n", info_ind->mcc); |
| 454 | LOGP(DL1IF, LOGL_DEBUG, " mnc=%0*u\n", info_ind->mnc_3_digits, info_ind->mnc); |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 455 | LOGP(DL1IF, LOGL_DEBUG, " lac=%d\n", info_ind->lac); |
| 456 | LOGP(DL1IF, LOGL_DEBUG, " rac=%d\n", info_ind->rac); |
Harald Welte | 1473b37 | 2019-03-21 19:48:55 +0100 | [diff] [blame] | 457 | LOGP(DL1IF, LOGL_DEBUG, " cell_id=%d\n", info_ind->cell_id); |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 458 | LOGP(DL1IF, LOGL_DEBUG, " bsic=%d\n", info_ind->bsic); |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 459 | LOGP(DL1IF, LOGL_DEBUG, " nsei=%d\n", info_ind->nsei); |
| 460 | LOGP(DL1IF, LOGL_DEBUG, " nse_timer=%d %d %d %d %d %d %d\n", |
| 461 | info_ind->nse_timer[0], info_ind->nse_timer[1], |
| 462 | info_ind->nse_timer[2], info_ind->nse_timer[3], |
| 463 | info_ind->nse_timer[4], info_ind->nse_timer[5], |
| 464 | info_ind->nse_timer[6]); |
| 465 | LOGP(DL1IF, LOGL_DEBUG, " cell_timer=%d %d %d %d %d %d %d %d %d %d " |
| 466 | "%d\n", |
| 467 | info_ind->cell_timer[0], info_ind->cell_timer[1], |
| 468 | info_ind->cell_timer[2], info_ind->cell_timer[3], |
| 469 | info_ind->cell_timer[4], info_ind->cell_timer[5], |
| 470 | info_ind->cell_timer[6], info_ind->cell_timer[7], |
| 471 | info_ind->cell_timer[8], info_ind->cell_timer[9], |
| 472 | info_ind->cell_timer[10]); |
| 473 | LOGP(DL1IF, LOGL_DEBUG, " repeat_time=%d\n", info_ind->repeat_time); |
| 474 | LOGP(DL1IF, LOGL_DEBUG, " repeat_count=%d\n", info_ind->repeat_count); |
| 475 | LOGP(DL1IF, LOGL_DEBUG, " bvci=%d\n", info_ind->bvci); |
| 476 | LOGP(DL1IF, LOGL_DEBUG, " t3142=%d\n", info_ind->t3142); |
| 477 | LOGP(DL1IF, LOGL_DEBUG, " t3169=%d\n", info_ind->t3169); |
| 478 | LOGP(DL1IF, LOGL_DEBUG, " t3191=%d\n", info_ind->t3191); |
| 479 | LOGP(DL1IF, LOGL_DEBUG, " t3193=%d (ms)\n", info_ind->t3193_10ms * 10); |
| 480 | LOGP(DL1IF, LOGL_DEBUG, " t3195=%d\n", info_ind->t3195); |
| 481 | LOGP(DL1IF, LOGL_DEBUG, " n3101=%d\n", info_ind->n3101); |
| 482 | LOGP(DL1IF, LOGL_DEBUG, " n3103=%d\n", info_ind->n3103); |
| 483 | LOGP(DL1IF, LOGL_DEBUG, " n3105=%d\n", info_ind->n3105); |
| 484 | LOGP(DL1IF, LOGL_DEBUG, " cv_countdown=%d\n", info_ind->cv_countdown); |
| 485 | LOGP(DL1IF, LOGL_DEBUG, " dl_tbf_ext=%d\n", info_ind->dl_tbf_ext); |
| 486 | LOGP(DL1IF, LOGL_DEBUG, " ul_tbf_ext=%d\n", info_ind->ul_tbf_ext); |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 487 | bts->bsic = info_ind->bsic; |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 488 | for (i = 0; i < 4; i++) { |
| 489 | if ((info_ind->flags & (PCU_IF_FLAG_CS1 << i))) |
| 490 | LOGP(DL1IF, LOGL_DEBUG, " Use CS%d\n", i+1); |
| 491 | } |
| 492 | for (i = 0; i < 9; i++) { |
| 493 | if ((info_ind->flags & (PCU_IF_FLAG_MCS1 << i))) |
| 494 | LOGP(DL1IF, LOGL_DEBUG, " Use MCS%d\n", i+1); |
| 495 | } |
| 496 | LOGP(DL1IF, LOGL_DEBUG, " initial_cs=%d\n", info_ind->initial_cs); |
| 497 | LOGP(DL1IF, LOGL_DEBUG, " initial_mcs=%d\n", info_ind->initial_mcs); |
| 498 | LOGP(DL1IF, LOGL_DEBUG, " nsvci=%d\n", info_ind->nsvci[0]); |
| 499 | LOGP(DL1IF, LOGL_DEBUG, " local_port=%d\n", info_ind->local_port[0]); |
| 500 | LOGP(DL1IF, LOGL_DEBUG, " remote_port=%d\n", info_ind->remote_port[0]); |
Andreas Eversberg | 81a12be | 2013-03-16 16:16:41 +0100 | [diff] [blame] | 501 | ia.s_addr = htonl(info_ind->remote_ip[0]); |
| 502 | LOGP(DL1IF, LOGL_DEBUG, " remote_ip=%s\n", inet_ntoa(ia)); |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 503 | |
Holger Hans Peter Freyther | e8d9a5f | 2013-07-28 19:11:20 +0200 | [diff] [blame] | 504 | pcu = gprs_bssgp_create_and_connect(bts, info_ind->local_port[0], |
Harald Welte | 30a73d8 | 2013-03-10 08:54:30 +0000 | [diff] [blame] | 505 | info_ind->remote_ip[0], info_ind->remote_port[0], |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 506 | info_ind->nsei, info_ind->nsvci[0], info_ind->bvci, |
Neels Hofmeyr | bdc55fa | 2018-02-21 00:39:07 +0100 | [diff] [blame] | 507 | info_ind->mcc, info_ind->mnc, info_ind->mnc_3_digits, info_ind->lac, info_ind->rac, |
Harald Welte | 1473b37 | 2019-03-21 19:48:55 +0100 | [diff] [blame] | 508 | info_ind->cell_id); |
Holger Hans Peter Freyther | e8d9a5f | 2013-07-28 19:11:20 +0200 | [diff] [blame] | 509 | if (!pcu) { |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 510 | LOGP(DL1IF, LOGL_NOTICE, "SGSN not available\n"); |
| 511 | goto bssgp_failed; |
| 512 | } |
| 513 | |
| 514 | bts->cs1 = !!(info_ind->flags & PCU_IF_FLAG_CS1); |
| 515 | bts->cs2 = !!(info_ind->flags & PCU_IF_FLAG_CS2); |
| 516 | bts->cs3 = !!(info_ind->flags & PCU_IF_FLAG_CS3); |
| 517 | bts->cs4 = !!(info_ind->flags & PCU_IF_FLAG_CS4); |
| 518 | if (!bts->cs1 && !bts->cs2 && !bts->cs3 && !bts->cs4) |
| 519 | bts->cs1 = 1; |
| 520 | if (info_ind->t3142) { /* if timer values are set */ |
Pau Espin Pedrol | 28f160e | 2019-09-05 14:48:35 +0200 | [diff] [blame] | 521 | osmo_tdef_set(bts->T_defs_bts, 3142, info_ind->t3142, OSMO_TDEF_S); |
| 522 | osmo_tdef_set(bts->T_defs_bts, 3169, info_ind->t3169, OSMO_TDEF_S); |
| 523 | osmo_tdef_set(bts->T_defs_bts, 3191, info_ind->t3191, OSMO_TDEF_S); |
| 524 | osmo_tdef_set(bts->T_defs_bts, 3193, info_ind->t3193_10ms * 10, OSMO_TDEF_MS); |
| 525 | osmo_tdef_set(bts->T_defs_bts, 3195, info_ind->t3195, OSMO_TDEF_S); |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 526 | bts->n3101 = info_ind->n3101; |
| 527 | bts->n3103 = info_ind->n3103; |
| 528 | bts->n3105 = info_ind->n3105; |
| 529 | } |
Andreas Eversberg | 8b761a3 | 2012-07-20 21:50:31 +0200 | [diff] [blame] | 530 | if (!bts->force_cs) { |
| 531 | if (info_ind->initial_cs < 1 || info_ind->initial_cs > 4) |
Andreas Eversberg | 499ff41 | 2012-10-03 14:21:36 +0200 | [diff] [blame] | 532 | bts->initial_cs_dl = 1; |
Andreas Eversberg | 8b761a3 | 2012-07-20 21:50:31 +0200 | [diff] [blame] | 533 | else |
Andreas Eversberg | 499ff41 | 2012-10-03 14:21:36 +0200 | [diff] [blame] | 534 | bts->initial_cs_dl = info_ind->initial_cs; |
| 535 | bts->initial_cs_ul = bts->initial_cs_dl; |
Andreas Eversberg | 8b761a3 | 2012-07-20 21:50:31 +0200 | [diff] [blame] | 536 | } |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 537 | |
Harald Welte | bb47d95 | 2016-11-17 18:40:02 +0100 | [diff] [blame] | 538 | for (trx = 0; trx < ARRAY_SIZE(bts->trx); trx++) { |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 539 | bts->trx[trx].arfcn = info_ind->trx[trx].arfcn; |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 540 | if ((info_ind->flags & PCU_IF_FLAG_SYSMO) |
| 541 | && info_ind->trx[trx].hlayer1) { |
Max | cad867e | 2016-04-21 14:35:55 +0200 | [diff] [blame] | 542 | #ifdef ENABLE_DIRECT_PHY |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 543 | LOGP(DL1IF, LOGL_DEBUG, " TRX %d hlayer1=%x\n", trx, |
| 544 | info_ind->trx[trx].hlayer1); |
| 545 | if (!bts->trx[trx].fl1h) |
| 546 | bts->trx[trx].fl1h = l1if_open_pdch( |
Max | 58b6646 | 2016-05-13 10:34:15 +0200 | [diff] [blame] | 547 | trx, |
Max | 2efdf69 | 2016-02-22 11:39:30 +0100 | [diff] [blame] | 548 | info_ind->trx[trx].hlayer1, |
| 549 | bts->gsmtap); |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 550 | if (!bts->trx[trx].fl1h) { |
| 551 | LOGP(DL1IF, LOGL_FATAL, "Failed to open direct " |
| 552 | "DSP access for PDCH.\n"); |
| 553 | exit(0); |
| 554 | } |
| 555 | #else |
| 556 | LOGP(DL1IF, LOGL_FATAL, "Compiled without direct DSP " |
| 557 | "access for PDCH, but enabled at " |
| 558 | "BTS. Please deactivate it!\n"); |
| 559 | exit(0); |
| 560 | #endif |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 561 | } |
| 562 | |
Harald Welte | bb47d95 | 2016-11-17 18:40:02 +0100 | [diff] [blame] | 563 | for (ts = 0; ts < ARRAY_SIZE(bts->trx[0].pdch); ts++) { |
Andreas Eversberg | 2b91464 | 2012-07-19 13:06:26 +0200 | [diff] [blame] | 564 | pdch = &bts->trx[trx].pdch[ts]; |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 565 | if ((info_ind->trx[trx].pdch_mask & (1 << ts))) { |
| 566 | /* FIXME: activate dynamically at RLCMAC */ |
Holger Hans Peter Freyther | 17b0d83 | 2013-10-19 17:37:48 +0200 | [diff] [blame] | 567 | if (!pdch->is_enabled()) { |
Max | cad867e | 2016-04-21 14:35:55 +0200 | [diff] [blame] | 568 | #ifdef ENABLE_DIRECT_PHY |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 569 | if ((info_ind->flags & |
| 570 | PCU_IF_FLAG_SYSMO)) |
| 571 | l1if_connect_pdch( |
| 572 | bts->trx[trx].fl1h, ts); |
| 573 | #endif |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 574 | pcu_tx_act_req(trx, ts, 1); |
Holger Hans Peter Freyther | 17b0d83 | 2013-10-19 17:37:48 +0200 | [diff] [blame] | 575 | pdch->enable(); |
Andreas Eversberg | 3b7461c | 2012-07-20 11:19:59 +0200 | [diff] [blame] | 576 | } |
Andreas Eversberg | 2b91464 | 2012-07-19 13:06:26 +0200 | [diff] [blame] | 577 | pdch->tsc = info_ind->trx[trx].tsc[ts]; |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 578 | LOGP(DL1IF, LOGL_INFO, "PDCH: trx=%d ts=%d\n", |
| 579 | trx, ts); |
| 580 | } else { |
Holger Hans Peter Freyther | 17b0d83 | 2013-10-19 17:37:48 +0200 | [diff] [blame] | 581 | if (pdch->is_enabled()) { |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 582 | pcu_tx_act_req(trx, ts, 0); |
Holger Hans Peter Freyther | 09ef27a | 2013-10-20 16:37:05 +0200 | [diff] [blame] | 583 | pdch->free_resources(); |
Holger Hans Peter Freyther | 17b0d83 | 2013-10-19 17:37:48 +0200 | [diff] [blame] | 584 | pdch->disable(); |
Andreas Eversberg | 3b7461c | 2012-07-20 11:19:59 +0200 | [diff] [blame] | 585 | } |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 586 | } |
| 587 | } |
| 588 | } |
| 589 | |
Stefan Sperling | 5b22fb7 | 2018-02-14 19:46:33 +0100 | [diff] [blame] | 590 | bts->active = true; |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 591 | return rc; |
| 592 | } |
| 593 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 594 | static int pcu_rx_time_ind(struct gsm_pcu_if_time_ind *time_ind) |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 595 | { |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 596 | uint8_t fn13 = time_ind->fn % 13; |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 597 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 598 | /* omit frame numbers not starting at a MAC block */ |
| 599 | if (fn13 != 0 && fn13 != 4 && fn13 != 8) |
| 600 | return 0; |
Max | 3741f14 | 2017-06-26 12:10:12 +0200 | [diff] [blame] | 601 | |
| 602 | LOGP(DL1IF, LOGL_DEBUG, "Time indication received: %d\n", time_ind->fn % 52); |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 603 | |
Holger Hans Peter Freyther | 9b30c7f | 2013-10-17 19:59:56 +0200 | [diff] [blame] | 604 | BTS::main_bts()->set_current_frame_number(time_ind->fn); |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 605 | return 0; |
| 606 | } |
| 607 | |
Andreas Eversberg | 2b91464 | 2012-07-19 13:06:26 +0200 | [diff] [blame] | 608 | static int pcu_rx_pag_req(struct gsm_pcu_if_pag_req *pag_req) |
| 609 | { |
| 610 | LOGP(DL1IF, LOGL_DEBUG, "Paging request received: chan_needed=%d " |
| 611 | "length=%d\n", pag_req->chan_needed, pag_req->identity_lv[0]); |
| 612 | |
Holger Hans Peter Freyther | f098489 | 2013-10-19 18:28:59 +0200 | [diff] [blame] | 613 | return BTS::main_bts()->add_paging(pag_req->chan_needed, |
Andreas Eversberg | 2b91464 | 2012-07-19 13:06:26 +0200 | [diff] [blame] | 614 | pag_req->identity_lv); |
| 615 | } |
| 616 | |
Harald Welte | 3447c4a | 2017-07-11 00:06:38 +0200 | [diff] [blame] | 617 | static int pcu_rx_susp_req(struct gsm_pcu_if_susp_req *susp_req) |
| 618 | { |
| 619 | struct bssgp_bvc_ctx *bctx = gprs_bssgp_pcu_current_bctx(); |
| 620 | struct gprs_ra_id ra_id; |
| 621 | |
| 622 | gsm48_parse_ra(&ra_id, susp_req->ra_id); |
| 623 | |
| 624 | LOGP(DL1IF, LOGL_INFO, "GPRS Suspend request received: TLLI=0x%08x RAI=%s\n", |
| 625 | susp_req->tlli, osmo_rai_name(&ra_id)); |
| 626 | |
| 627 | if (!bctx) |
| 628 | return -1; |
| 629 | |
| 630 | return bssgp_tx_suspend(bctx->nsei, susp_req->tlli, &ra_id); |
| 631 | } |
| 632 | |
Oliver Smith | cfb6321 | 2019-09-05 17:13:33 +0200 | [diff] [blame] | 633 | static int pcu_rx_app_info_req(struct gsm_pcu_if_app_info_req *app_info_req) |
| 634 | { |
| 635 | LListHead<GprsMs> *ms_iter; |
| 636 | BTS *bts = BTS::main_bts(); |
| 637 | struct gprs_rlcmac_bts *bts_data = bts->bts_data(); |
| 638 | |
| 639 | LOGP(DL1IF, LOGL_DEBUG, "Application Information Request received: type=0x%08x len=%i\n", |
| 640 | app_info_req->application_type, app_info_req->len); |
| 641 | |
| 642 | bts_data->app_info_pending = 0; |
| 643 | llist_for_each(ms_iter, &bts->ms_store().ms_list()) { |
| 644 | GprsMs *ms = ms_iter->entry(); |
| 645 | if (!ms->dl_tbf()) |
| 646 | continue; |
| 647 | bts_data->app_info_pending++; |
| 648 | ms->app_info_pending = true; |
| 649 | } |
| 650 | |
| 651 | if (!bts_data->app_info_pending) { |
| 652 | LOGP(DL1IF, LOGL_NOTICE, "Packet Application Information will not be sent, no subscribers with active" |
| 653 | " TBF\n"); |
| 654 | return -1; |
| 655 | } |
| 656 | |
| 657 | if (bts_data->app_info) { |
| 658 | LOGP(DL1IF, LOGL_NOTICE, "Previous Packet Application Information was not sent to all subscribers," |
| 659 | " overwriting with new one\n"); |
| 660 | msgb_free(bts_data->app_info); |
| 661 | } |
| 662 | |
| 663 | LOGP(DL1IF, LOGL_INFO, "Sending Packet Application Information to %i subscribers with active TBF\n", |
| 664 | bts_data->app_info_pending); |
| 665 | bts_data->app_info = gprs_rlcmac_app_info_msg(app_info_req); |
| 666 | return 0; |
| 667 | } |
| 668 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 669 | int pcu_rx(uint8_t msg_type, struct gsm_pcu_if *pcu_prim) |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 670 | { |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 671 | int rc = 0; |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 672 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 673 | switch (msg_type) { |
| 674 | case PCU_IF_MSG_DATA_IND: |
Harald Welte | 717cdf5 | 2017-07-21 21:56:23 +0200 | [diff] [blame] | 675 | rc = pcu_rx_data_ind(&pcu_prim->u.data_ind); |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 676 | break; |
Andreas Eversberg | a9be154 | 2012-09-27 09:23:24 +0200 | [diff] [blame] | 677 | case PCU_IF_MSG_DATA_CNF: |
| 678 | rc = pcu_rx_data_cnf(&pcu_prim->u.data_cnf); |
| 679 | break; |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 680 | case PCU_IF_MSG_RTS_REQ: |
| 681 | rc = pcu_rx_rts_req(&pcu_prim->u.rts_req); |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 682 | break; |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 683 | case PCU_IF_MSG_RACH_IND: |
| 684 | rc = pcu_rx_rach_ind(&pcu_prim->u.rach_ind); |
| 685 | break; |
| 686 | case PCU_IF_MSG_INFO_IND: |
| 687 | rc = pcu_rx_info_ind(&pcu_prim->u.info_ind); |
| 688 | break; |
| 689 | case PCU_IF_MSG_TIME_IND: |
| 690 | rc = pcu_rx_time_ind(&pcu_prim->u.time_ind); |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 691 | break; |
Andreas Eversberg | 2b91464 | 2012-07-19 13:06:26 +0200 | [diff] [blame] | 692 | case PCU_IF_MSG_PAG_REQ: |
| 693 | rc = pcu_rx_pag_req(&pcu_prim->u.pag_req); |
| 694 | break; |
Harald Welte | 3447c4a | 2017-07-11 00:06:38 +0200 | [diff] [blame] | 695 | case PCU_IF_MSG_SUSP_REQ: |
| 696 | rc = pcu_rx_susp_req(&pcu_prim->u.susp_req); |
| 697 | break; |
Oliver Smith | cfb6321 | 2019-09-05 17:13:33 +0200 | [diff] [blame] | 698 | case PCU_IF_MSG_APP_INFO_REQ: |
| 699 | rc = pcu_rx_app_info_req(&pcu_prim->u.app_info_req); |
| 700 | break; |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 701 | default: |
Thorsten Alteholz | 8bb7904 | 2018-10-06 10:42:58 +0200 | [diff] [blame] | 702 | LOGP(DL1IF, LOGL_ERROR, "Received unknown PCU msg type %d\n", |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 703 | msg_type); |
| 704 | rc = -EINVAL; |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 705 | } |
Philipp Maier | 8ccf704 | 2018-04-10 13:12:42 +0200 | [diff] [blame] | 706 | |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 707 | return rc; |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 708 | } |