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> |
Pau Espin Pedrol | 32499b6 | 2019-12-09 13:55:12 +0100 | [diff] [blame] | 22 | #include <inttypes.h> |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 23 | #include <stdlib.h> |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 24 | #include <string.h> |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 25 | #include <errno.h> |
| 26 | #include <assert.h> |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 27 | #include <sys/socket.h> |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 28 | #include <sys/un.h> |
Andreas Eversberg | 81a12be | 2013-03-16 16:16:41 +0100 | [diff] [blame] | 29 | #include <arpa/inet.h> |
Max | 1187a77 | 2018-01-26 13:31:42 +0100 | [diff] [blame] | 30 | |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 31 | extern "C" { |
| 32 | #include <osmocom/core/talloc.h> |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 33 | #include <osmocom/core/select.h> |
| 34 | #include <osmocom/core/msgb.h> |
Max | 528ff39 | 2016-02-22 11:42:33 +0100 | [diff] [blame] | 35 | #include <osmocom/core/gsmtap_util.h> |
| 36 | #include <osmocom/core/gsmtap.h> |
Max | 1187a77 | 2018-01-26 13:31:42 +0100 | [diff] [blame] | 37 | #include <osmocom/core/bitvec.h> |
| 38 | #include <osmocom/core/logging.h> |
| 39 | #include <osmocom/core/utils.h> |
| 40 | #include <osmocom/gsm/l1sap.h> |
| 41 | #include <osmocom/gsm/protocol/gsm_04_08.h> |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 42 | } |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 43 | |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 44 | #include <gprs_rlcmac.h> |
| 45 | #include <pcu_l1_if.h> |
| 46 | #include <gprs_debug.h> |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 47 | #include <gprs_bssgp_pcu.h> |
Harald Welte | 68fc127 | 2016-11-16 22:48:33 +0100 | [diff] [blame] | 48 | #include <osmocom/pcu/pcuif_proto.h> |
Holger Hans Peter Freyther | 67ed34e | 2013-10-17 17:01:54 +0200 | [diff] [blame] | 49 | #include <bts.h> |
Max | 6dc90b8 | 2018-02-19 17:17:28 +0100 | [diff] [blame] | 50 | #include <pdch.h> |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 51 | |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 52 | // FIXME: move this, when changed from c++ to c. |
| 53 | extern "C" { |
Max | 58b6646 | 2016-05-13 10:34:15 +0200 | [diff] [blame] | 54 | void *l1if_open_pdch(uint8_t trx_no, uint32_t hlayer1, |
| 55 | struct gsmtap_inst *gsmtap); |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 56 | int l1if_connect_pdch(void *obj, uint8_t ts); |
| 57 | int l1if_pdch_req(void *obj, uint8_t ts, int is_ptcch, uint32_t fn, |
| 58 | uint16_t arfcn, uint8_t block_nr, uint8_t *data, uint8_t len); |
| 59 | } |
| 60 | |
Andreas Eversberg | e266bd4 | 2012-07-13 14:00:21 +0200 | [diff] [blame] | 61 | extern void *tall_pcu_ctx; |
| 62 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 63 | /* |
| 64 | * PCU messages |
| 65 | */ |
Ivan Kluchnikov | e3a0596 | 2012-03-18 15:48:51 +0400 | [diff] [blame] | 66 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 67 | struct msgb *pcu_msgb_alloc(uint8_t msg_type, uint8_t bts_nr) |
| 68 | { |
| 69 | struct msgb *msg; |
| 70 | struct gsm_pcu_if *pcu_prim; |
| 71 | |
| 72 | msg = msgb_alloc(sizeof(struct gsm_pcu_if), "pcu_sock_tx"); |
| 73 | if (!msg) |
| 74 | return NULL; |
| 75 | msgb_put(msg, sizeof(struct gsm_pcu_if)); |
| 76 | pcu_prim = (struct gsm_pcu_if *) msg->data; |
| 77 | pcu_prim->msg_type = msg_type; |
| 78 | pcu_prim->bts_nr = bts_nr; |
Ivan Kluchnikov | e3a0596 | 2012-03-18 15:48:51 +0400 | [diff] [blame] | 79 | |
| 80 | return msg; |
| 81 | } |
| 82 | |
Max | 0a8fae8 | 2017-03-08 18:53:30 +0100 | [diff] [blame] | 83 | const struct value_string gsm_pcu_if_text_type_names[] = { |
| 84 | OSMO_VALUE_STRING(PCU_VERSION), |
| 85 | OSMO_VALUE_STRING(PCU_OML_ALERT), |
| 86 | { 0, NULL } |
| 87 | }; |
| 88 | |
| 89 | int pcu_tx_txt_ind(enum gsm_pcu_if_text_type t, const char *fmt, ...) |
| 90 | { |
| 91 | struct gsm_pcu_if *pcu_prim; |
| 92 | struct gsm_pcu_if_txt_ind *txt; |
| 93 | va_list ap; |
| 94 | char *rep; |
| 95 | struct msgb *msg = pcu_msgb_alloc(PCU_IF_MSG_TXT_IND, 0); |
| 96 | if (!msg) |
| 97 | return -ENOMEM; |
| 98 | |
| 99 | pcu_prim = (struct gsm_pcu_if *) msg->data; |
| 100 | txt = &pcu_prim->u.txt_ind; |
| 101 | txt->type = t; |
| 102 | |
| 103 | va_start(ap, fmt); |
| 104 | rep = talloc_vasprintf(tall_pcu_ctx, fmt, ap); |
| 105 | va_end(ap); |
| 106 | |
| 107 | if (!rep) |
| 108 | return -ENOMEM; |
| 109 | |
| 110 | osmo_strlcpy(txt->text, rep, TXT_MAX_LEN); |
| 111 | talloc_free(rep); |
| 112 | |
| 113 | LOGP(DL1IF, LOGL_INFO, "Sending %s TXT as %s to BTS\n", txt->text, |
| 114 | get_value_string(gsm_pcu_if_text_type_names, t)); |
| 115 | |
| 116 | return pcu_sock_send(msg); |
| 117 | } |
| 118 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 119 | 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] | 120 | { |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 121 | struct msgb *msg; |
| 122 | struct gsm_pcu_if *pcu_prim; |
| 123 | struct gsm_pcu_if_act_req *act_req; |
| 124 | |
| 125 | LOGP(DL1IF, LOGL_INFO, "Sending %s request: trx=%d ts=%d\n", |
| 126 | (activate) ? "activate" : "deactivate", trx, ts); |
| 127 | |
| 128 | msg = pcu_msgb_alloc(PCU_IF_MSG_ACT_REQ, 0); |
| 129 | if (!msg) |
| 130 | return -ENOMEM; |
| 131 | pcu_prim = (struct gsm_pcu_if *) msg->data; |
| 132 | act_req = &pcu_prim->u.act_req; |
| 133 | act_req->activate = activate; |
| 134 | act_req->trx_nr = trx; |
| 135 | act_req->ts_nr = ts; |
| 136 | |
| 137 | return pcu_sock_send(msg); |
| 138 | } |
| 139 | |
| 140 | static int pcu_tx_data_req(uint8_t trx, uint8_t ts, uint8_t sapi, |
| 141 | uint16_t arfcn, uint32_t fn, uint8_t block_nr, uint8_t *data, |
| 142 | uint8_t len) |
| 143 | { |
| 144 | struct msgb *msg; |
| 145 | struct gsm_pcu_if *pcu_prim; |
| 146 | struct gsm_pcu_if_data *data_req; |
Philipp Maier | 7e8e397 | 2018-04-10 13:31:45 +0200 | [diff] [blame] | 147 | int current_fn = get_current_fn(); |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 148 | |
| 149 | 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] | 150 | "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] | 151 | block_nr, osmo_hexdump(data, len)); |
| 152 | |
| 153 | msg = pcu_msgb_alloc(PCU_IF_MSG_DATA_REQ, 0); |
| 154 | if (!msg) |
| 155 | return -ENOMEM; |
| 156 | pcu_prim = (struct gsm_pcu_if *) msg->data; |
| 157 | data_req = &pcu_prim->u.data_req; |
| 158 | |
| 159 | data_req->sapi = sapi; |
| 160 | data_req->fn = fn; |
| 161 | data_req->arfcn = arfcn; |
| 162 | data_req->trx_nr = trx; |
| 163 | data_req->ts_nr = ts; |
| 164 | data_req->block_nr = block_nr; |
| 165 | memcpy(data_req->data, data, len); |
| 166 | data_req->len = len; |
| 167 | |
| 168 | return pcu_sock_send(msg); |
| 169 | } |
| 170 | |
| 171 | void pcu_l1if_tx_pdtch(msgb *msg, uint8_t trx, uint8_t ts, uint16_t arfcn, |
| 172 | uint32_t fn, uint8_t block_nr) |
| 173 | { |
Max | b216c6b | 2017-09-01 11:00:39 +0200 | [diff] [blame] | 174 | #ifdef ENABLE_DIRECT_PHY |
Holger Hans Peter Freyther | b6acfda | 2013-10-17 19:41:11 +0200 | [diff] [blame] | 175 | struct gprs_rlcmac_bts *bts = bts_main_data(); |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 176 | |
Max | 528ff39 | 2016-02-22 11:42:33 +0100 | [diff] [blame] | 177 | if (bts->trx[trx].fl1h) { |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 178 | l1if_pdch_req(bts->trx[trx].fl1h, ts, 0, fn, arfcn, block_nr, |
| 179 | msg->data, msg->len); |
Max | 528ff39 | 2016-02-22 11:42:33 +0100 | [diff] [blame] | 180 | msgb_free(msg); |
| 181 | return; |
| 182 | } |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 183 | #endif |
Max | 528ff39 | 2016-02-22 11:42:33 +0100 | [diff] [blame] | 184 | 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] | 185 | msg->data, msg->len); |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 186 | msgb_free(msg); |
Ivan Kluchnikov | 4277f0c | 2012-04-12 14:24:35 +0400 | [diff] [blame] | 187 | } |
| 188 | |
Vadim Yanitskiy | 78f5861 | 2019-10-05 22:22:08 +0700 | [diff] [blame] | 189 | void pcu_l1if_tx_ptcch(uint8_t trx, uint8_t ts, uint16_t arfcn, |
| 190 | uint32_t fn, uint8_t block_nr, |
| 191 | uint8_t *data, size_t data_len) |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 192 | { |
Holger Hans Peter Freyther | b6acfda | 2013-10-17 19:41:11 +0200 | [diff] [blame] | 193 | struct gprs_rlcmac_bts *bts = bts_main_data(); |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 194 | |
Harald Welte | b1be611 | 2017-08-17 00:49:23 +0200 | [diff] [blame] | 195 | if (bts->gsmtap_categ_mask & (1 << PCU_GSMTAP_C_DL_PTCCH)) |
Vadim Yanitskiy | 78f5861 | 2019-10-05 22:22:08 +0700 | [diff] [blame] | 196 | gsmtap_send(bts->gsmtap, arfcn, ts, GSMTAP_CHANNEL_PTCCH, 0, fn, 0, 0, data, data_len); |
Max | cad867e | 2016-04-21 14:35:55 +0200 | [diff] [blame] | 197 | #ifdef ENABLE_DIRECT_PHY |
Max | 528ff39 | 2016-02-22 11:42:33 +0100 | [diff] [blame] | 198 | if (bts->trx[trx].fl1h) { |
Vadim Yanitskiy | 78f5861 | 2019-10-05 22:22:08 +0700 | [diff] [blame] | 199 | l1if_pdch_req(bts->trx[trx].fl1h, ts, 1, fn, arfcn, block_nr, data, data_len); |
Max | 528ff39 | 2016-02-22 11:42:33 +0100 | [diff] [blame] | 200 | return; |
| 201 | } |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 202 | #endif |
Vadim Yanitskiy | 78f5861 | 2019-10-05 22:22:08 +0700 | [diff] [blame] | 203 | pcu_tx_data_req(trx, ts, PCU_IF_SAPI_PTCCH, arfcn, fn, block_nr, data, data_len); |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 204 | } |
| 205 | |
Andreas Eversberg | 7b04501 | 2012-07-05 07:38:49 +0200 | [diff] [blame] | 206 | void pcu_l1if_tx_agch(bitvec * block, int plen) |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 207 | { |
Pau Espin Pedrol | 5854370 | 2019-09-30 19:07:16 +0200 | [diff] [blame] | 208 | struct gprs_rlcmac_bts *bts = bts_main_data(); |
Pau Espin Pedrol | d752d7c | 2019-10-07 20:56:48 +0200 | [diff] [blame] | 209 | uint8_t data[GSM_MACBLOCK_LEN]; /* prefix PLEN */ |
| 210 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 211 | /* FIXME: why does OpenBTS has no PLEN and no fill in message? */ |
| 212 | bitvec_pack(block, data + 1); |
| 213 | data[0] = (plen << 2) | 0x01; |
Pau Espin Pedrol | 5854370 | 2019-09-30 19:07:16 +0200 | [diff] [blame] | 214 | |
| 215 | if (bts->gsmtap_categ_mask & (1 << PCU_GSMTAP_C_DL_AGCH)) |
Pau Espin Pedrol | d752d7c | 2019-10-07 20:56:48 +0200 | [diff] [blame] | 216 | gsmtap_send(bts->gsmtap, 0, 0, GSMTAP_CHANNEL_AGCH, 0, 0, 0, 0, data, GSM_MACBLOCK_LEN); |
Pau Espin Pedrol | 5854370 | 2019-09-30 19:07:16 +0200 | [diff] [blame] | 217 | |
Pau Espin Pedrol | d752d7c | 2019-10-07 20:56:48 +0200 | [diff] [blame] | 218 | pcu_tx_data_req(0, 0, PCU_IF_SAPI_AGCH, 0, 0, 0, data, GSM_MACBLOCK_LEN); |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 219 | } |
| 220 | |
Pau Espin Pedrol | 8dc09e7 | 2019-10-07 20:56:02 +0200 | [diff] [blame] | 221 | #define PAGING_GROUP_LEN 3 |
Holger Hans Peter Freyther | 52c911b | 2013-08-24 18:30:54 +0200 | [diff] [blame] | 222 | void pcu_l1if_tx_pch(bitvec * block, int plen, const char *imsi) |
Ivan Kluchnikov | c7e7f68 | 2012-06-29 22:53:15 +0400 | [diff] [blame] | 223 | { |
Pau Espin Pedrol | 5854370 | 2019-09-30 19:07:16 +0200 | [diff] [blame] | 224 | struct gprs_rlcmac_bts *bts = bts_main_data(); |
Pau Espin Pedrol | 8dc09e7 | 2019-10-07 20:56:02 +0200 | [diff] [blame] | 225 | uint8_t data[PAGING_GROUP_LEN + GSM_MACBLOCK_LEN]; |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 226 | |
Pau Espin Pedrol | 8dc09e7 | 2019-10-07 20:56:02 +0200 | [diff] [blame] | 227 | /* prepend paging group */ |
| 228 | if (!imsi || strlen(imsi) < PAGING_GROUP_LEN) |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 229 | return; |
Pau Espin Pedrol | 8dc09e7 | 2019-10-07 20:56:02 +0200 | [diff] [blame] | 230 | imsi += strlen(imsi) - PAGING_GROUP_LEN; |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 231 | data[0] = imsi[0]; |
| 232 | data[1] = imsi[1]; |
| 233 | data[2] = imsi[2]; |
| 234 | |
Pau Espin Pedrol | 8dc09e7 | 2019-10-07 20:56:02 +0200 | [diff] [blame] | 235 | /* block provided by upper layer comes without first byte (plen), |
| 236 | * prepend it manually: |
| 237 | */ |
| 238 | OSMO_ASSERT(sizeof(data) >= PAGING_GROUP_LEN + 1 + block->data_len); |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 239 | data[3] = (plen << 2) | 0x01; |
Pau Espin Pedrol | 8dc09e7 | 2019-10-07 20:56:02 +0200 | [diff] [blame] | 240 | bitvec_pack(block, data + PAGING_GROUP_LEN + 1); |
Pau Espin Pedrol | 5854370 | 2019-09-30 19:07:16 +0200 | [diff] [blame] | 241 | |
| 242 | if (bts->gsmtap_categ_mask & (1 << PCU_GSMTAP_C_DL_PCH)) |
Pau Espin Pedrol | 8dc09e7 | 2019-10-07 20:56:02 +0200 | [diff] [blame] | 243 | gsmtap_send(bts->gsmtap, 0, 0, GSMTAP_CHANNEL_PCH, 0, 0, 0, 0, data + 3, GSM_MACBLOCK_LEN); |
Pau Espin Pedrol | 5854370 | 2019-09-30 19:07:16 +0200 | [diff] [blame] | 244 | |
Pau Espin Pedrol | 8dc09e7 | 2019-10-07 20:56:02 +0200 | [diff] [blame] | 245 | pcu_tx_data_req(0, 0, PCU_IF_SAPI_PCH, 0, 0, 0, data, PAGING_GROUP_LEN + GSM_MACBLOCK_LEN); |
Ivan Kluchnikov | c7e7f68 | 2012-06-29 22:53:15 +0400 | [diff] [blame] | 246 | } |
| 247 | |
Jacob Erlbeck | af75ce8 | 2015-08-26 13:22:28 +0200 | [diff] [blame] | 248 | extern "C" void pcu_rx_block_time(uint16_t arfcn, uint32_t fn, uint8_t ts_no) |
| 249 | { |
| 250 | BTS::main_bts()->set_current_block_frame_number(fn, 0); |
| 251 | } |
| 252 | |
| 253 | extern "C" void pcu_rx_ra_time(uint16_t arfcn, uint32_t fn, uint8_t ts_no) |
| 254 | { |
| 255 | /* access bursts may arrive some bursts earlier */ |
| 256 | BTS::main_bts()->set_current_block_frame_number(fn, 5); |
| 257 | } |
| 258 | |
Holger Hans Peter Freyther | 9ae367f | 2013-10-26 16:42:38 +0200 | [diff] [blame] | 259 | 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] | 260 | uint8_t len, uint32_t fn, struct pcu_l1_meas *meas) |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 261 | { |
Holger Hans Peter Freyther | 9ae367f | 2013-10-26 16:42:38 +0200 | [diff] [blame] | 262 | struct gprs_rlcmac_pdch *pdch; |
| 263 | |
| 264 | pdch = &bts_main_data()->trx[trx_no].pdch[ts_no]; |
Jacob Erlbeck | 20f6fd1 | 2015-06-08 11:05:45 +0200 | [diff] [blame] | 265 | return pdch->rcv_block(data, len, fn, meas); |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 266 | } |
| 267 | |
Max | 84bf0fa | 2017-09-01 11:02:40 +0200 | [diff] [blame] | 268 | static int pcu_rx_data_ind_bcch(uint8_t *data, uint8_t len) |
| 269 | { |
| 270 | struct gprs_rlcmac_bts *bts = bts_main_data(); |
| 271 | |
| 272 | if (len == 0) { |
| 273 | bts->si13_is_set = false; |
| 274 | LOGP(DL1IF, LOGL_INFO, "Received PCU data indication with empty SI13: cache cleaned\n"); |
| 275 | return 0; |
| 276 | } |
| 277 | |
| 278 | if (len != GSM_MACBLOCK_LEN) { |
| 279 | LOGP(DL1IF, LOGL_ERROR, "Received PCU data indication with SI13 with unexpected length %u\n", len); |
| 280 | return -EINVAL; |
| 281 | } |
| 282 | |
| 283 | memcpy(bts->si13, data, GSM_MACBLOCK_LEN); |
| 284 | bts->si13_is_set = true; |
| 285 | |
| 286 | return 0; |
| 287 | } |
| 288 | |
Harald Welte | 717cdf5 | 2017-07-21 21:56:23 +0200 | [diff] [blame] | 289 | 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] | 290 | { |
Harald Welte | 717cdf5 | 2017-07-21 21:56:23 +0200 | [diff] [blame] | 291 | struct gprs_rlcmac_bts *bts = bts_main_data(); |
Max | 528ff39 | 2016-02-22 11:42:33 +0100 | [diff] [blame] | 292 | int rc; |
Philipp Maier | 7e8e397 | 2018-04-10 13:31:45 +0200 | [diff] [blame] | 293 | int current_fn = get_current_fn(); |
Jacob Erlbeck | 20f6fd1 | 2015-06-08 11:05:45 +0200 | [diff] [blame] | 294 | pcu_l1_meas meas; |
Max | b216c6b | 2017-09-01 11:00:39 +0200 | [diff] [blame] | 295 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 296 | LOGP(DL1IF, LOGL_DEBUG, "Data indication received: sapi=%d arfcn=%d " |
Philipp Maier | 7e8e397 | 2018-04-10 13:31:45 +0200 | [diff] [blame] | 297 | "fn=%d cur_fn=%d block=%d data=%s\n", data_ind->sapi, |
| 298 | data_ind->arfcn, data_ind->fn, current_fn, data_ind->block_nr, |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 299 | osmo_hexdump(data_ind->data, data_ind->len)); |
| 300 | |
Ivan Kluchnikov | e3a0596 | 2012-03-18 15:48:51 +0400 | [diff] [blame] | 301 | switch (data_ind->sapi) { |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 302 | case PCU_IF_SAPI_PDTCH: |
Max | b216c6b | 2017-09-01 11:00:39 +0200 | [diff] [blame] | 303 | meas.set_rssi(data_ind->rssi); |
Max | b216c6b | 2017-09-01 11:00:39 +0200 | [diff] [blame] | 304 | /* convert BER to % value */ |
| 305 | meas.set_ber(data_ind->ber10k / 100); |
| 306 | meas.set_bto(data_ind->ta_offs_qbits); |
| 307 | meas.set_link_qual(data_ind->lqual_cb / 10); |
Vadim Yanitskiy | f17dfc0 | 2019-07-09 16:16:35 +0700 | [diff] [blame] | 308 | |
Max | b216c6b | 2017-09-01 11:00:39 +0200 | [diff] [blame] | 309 | LOGP(DL1IF, LOGL_DEBUG, "Data indication with raw measurements received: BER10k = %d, BTO = %d, Q = %d\n", |
| 310 | data_ind->ber10k, data_ind->ta_offs_qbits, data_ind->lqual_cb); |
Vadim Yanitskiy | f17dfc0 | 2019-07-09 16:16:35 +0700 | [diff] [blame] | 311 | |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 312 | 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] | 313 | data_ind->data, data_ind->len, data_ind->fn, |
Jacob Erlbeck | 20f6fd1 | 2015-06-08 11:05:45 +0200 | [diff] [blame] | 314 | &meas); |
Ivan Kluchnikov | e3a0596 | 2012-03-18 15:48:51 +0400 | [diff] [blame] | 315 | break; |
Max | 84bf0fa | 2017-09-01 11:02:40 +0200 | [diff] [blame] | 316 | case PCU_IF_SAPI_BCCH: |
| 317 | rc = pcu_rx_data_ind_bcch(data_ind->data, data_ind->len); |
| 318 | break; |
Ivan Kluchnikov | e3a0596 | 2012-03-18 15:48:51 +0400 | [diff] [blame] | 319 | default: |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 320 | LOGP(DL1IF, LOGL_ERROR, "Received PCU data indication with " |
| 321 | "unsupported sapi %d\n", data_ind->sapi); |
| 322 | rc = -EINVAL; |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 323 | } |
Ivan Kluchnikov | e3a0596 | 2012-03-18 15:48:51 +0400 | [diff] [blame] | 324 | |
Harald Welte | b1be611 | 2017-08-17 00:49:23 +0200 | [diff] [blame] | 325 | 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] | 326 | gsmtap_send(bts->gsmtap, data_ind->arfcn | GSMTAP_ARFCN_F_UPLINK, data_ind->ts_nr, |
| 327 | GSMTAP_CHANNEL_PACCH, 0, data_ind->fn, 0, 0, data_ind->data, data_ind->len); |
| 328 | } |
| 329 | |
Ivan Kluchnikov | e3a0596 | 2012-03-18 15:48:51 +0400 | [diff] [blame] | 330 | return rc; |
| 331 | } |
| 332 | |
Andreas Eversberg | a9be154 | 2012-09-27 09:23:24 +0200 | [diff] [blame] | 333 | static int pcu_rx_data_cnf(struct gsm_pcu_if_data *data_cnf) |
| 334 | { |
| 335 | int rc = 0; |
Philipp Maier | 7e8e397 | 2018-04-10 13:31:45 +0200 | [diff] [blame] | 336 | int current_fn = get_current_fn(); |
Andreas Eversberg | a9be154 | 2012-09-27 09:23:24 +0200 | [diff] [blame] | 337 | |
Philipp Maier | 7e8e397 | 2018-04-10 13:31:45 +0200 | [diff] [blame] | 338 | LOGP(DL1IF, LOGL_DEBUG, "Data confirm received: sapi=%d fn=%d cur_fn=%d\n", |
| 339 | data_cnf->sapi, data_cnf->fn, current_fn); |
Andreas Eversberg | a9be154 | 2012-09-27 09:23:24 +0200 | [diff] [blame] | 340 | |
| 341 | switch (data_cnf->sapi) { |
| 342 | case PCU_IF_SAPI_PCH: |
Andreas Eversberg | 8c3680d | 2012-10-08 12:30:56 +0200 | [diff] [blame] | 343 | if (data_cnf->data[2] == 0x3f) |
Holger Hans Peter Freyther | 40cfaa6 | 2013-10-26 19:49:16 +0200 | [diff] [blame] | 344 | 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] | 345 | break; |
| 346 | default: |
| 347 | LOGP(DL1IF, LOGL_ERROR, "Received PCU data confirm with " |
| 348 | "unsupported sapi %d\n", data_cnf->sapi); |
| 349 | rc = -EINVAL; |
| 350 | } |
| 351 | |
| 352 | return rc; |
| 353 | } |
| 354 | |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 355 | // FIXME: remove this, when changed from c++ to c. |
Max | 878bd1f | 2016-07-20 13:05:05 +0200 | [diff] [blame] | 356 | 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] | 357 | uint32_t fn, uint8_t block_nr) |
| 358 | { |
Holger Hans Peter Freyther | b6acfda | 2013-10-17 19:41:11 +0200 | [diff] [blame] | 359 | return gprs_rlcmac_rcv_rts_block(bts_main_data(), |
Max | 878bd1f | 2016-07-20 13:05:05 +0200 | [diff] [blame] | 360 | trx, ts, fn, block_nr); |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 361 | } |
Vadim Yanitskiy | 78f5861 | 2019-10-05 22:22:08 +0700 | [diff] [blame] | 362 | extern "C" int pcu_rx_rts_req_ptcch(uint8_t trx, uint8_t ts, |
| 363 | uint32_t fn, uint8_t block_nr) |
| 364 | { |
| 365 | struct gprs_rlcmac_bts *bts = bts_main_data(); |
| 366 | struct gprs_rlcmac_pdch *pdch; |
| 367 | |
| 368 | /* Prevent buffer overflow */ |
| 369 | if (trx >= ARRAY_SIZE(bts->trx) || ts >= 8) |
| 370 | return -EINVAL; |
| 371 | |
| 372 | /* Make sure PDCH time-slot is enabled */ |
| 373 | pdch = &bts->trx[trx].pdch[ts]; |
| 374 | if (!pdch->m_is_enabled) |
| 375 | return -EAGAIN; |
| 376 | |
| 377 | pcu_l1if_tx_ptcch(trx, ts, bts->trx[trx].arfcn, fn, block_nr, |
| 378 | pdch->ptcch_msg, GSM_MACBLOCK_LEN); |
| 379 | return 0; |
| 380 | } |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 381 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 382 | 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] | 383 | { |
| 384 | int rc = 0; |
Philipp Maier | 7e8e397 | 2018-04-10 13:31:45 +0200 | [diff] [blame] | 385 | int current_fn = get_current_fn(); |
Ivan Kluchnikov | 5310d45 | 2012-04-17 22:00:31 +0400 | [diff] [blame] | 386 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 387 | 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] | 388 | "arfcn=%d fn=%d cur_fn=%d block=%d\n", rts_req->trx_nr, rts_req->ts_nr, |
| 389 | 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] | 390 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 391 | switch (rts_req->sapi) { |
| 392 | case PCU_IF_SAPI_PDTCH: |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 393 | pcu_rx_rts_req_pdtch(rts_req->trx_nr, rts_req->ts_nr, |
Max | 878bd1f | 2016-07-20 13:05:05 +0200 | [diff] [blame] | 394 | rts_req->fn, rts_req->block_nr); |
Ivan Kluchnikov | e3a0596 | 2012-03-18 15:48:51 +0400 | [diff] [blame] | 395 | break; |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 396 | case PCU_IF_SAPI_PTCCH: |
Vadim Yanitskiy | 78f5861 | 2019-10-05 22:22:08 +0700 | [diff] [blame] | 397 | pcu_rx_rts_req_ptcch(rts_req->trx_nr, rts_req->ts_nr, |
| 398 | rts_req->fn, rts_req->block_nr); |
Ivan Kluchnikov | e3a0596 | 2012-03-18 15:48:51 +0400 | [diff] [blame] | 399 | break; |
| 400 | default: |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 401 | LOGP(DL1IF, LOGL_ERROR, "Received PCU RTS request with " |
| 402 | "unsupported sapi %d\n", rts_req->sapi); |
| 403 | rc = -EINVAL; |
| 404 | } |
| 405 | |
| 406 | return rc; |
| 407 | } |
| 408 | |
Vadim Yanitskiy | ffebd24 | 2019-10-05 23:45:31 +0700 | [diff] [blame] | 409 | /* C -> C++ adapter for direct DSP access code (e.g. osmo-bts-sysmo) */ |
| 410 | extern "C" int pcu_rx_rach_ind_pdtch(uint8_t trx_nr, uint8_t ts_nr, uint32_t fn, int16_t qta) |
| 411 | { |
| 412 | return BTS::main_bts()->rcv_ptcch_rach(trx_nr, ts_nr, fn, qta); |
| 413 | } |
| 414 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 415 | static int pcu_rx_rach_ind(struct gsm_pcu_if_rach_ind *rach_ind) |
| 416 | { |
| 417 | int rc = 0; |
Philipp Maier | 7e8e397 | 2018-04-10 13:31:45 +0200 | [diff] [blame] | 418 | int current_fn = get_current_fn(); |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 419 | |
| 420 | LOGP(DL1IF, LOGL_INFO, "RACH request received: sapi=%d " |
Philipp Maier | 7e8e397 | 2018-04-10 13:31:45 +0200 | [diff] [blame] | 421 | "qta=%d, ra=%d, fn=%d, cur_fn=%d, is_11bit=%d\n", rach_ind->sapi, rach_ind->qta, |
| 422 | rach_ind->ra, rach_ind->fn, current_fn, rach_ind->is_11bit); |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 423 | |
| 424 | switch (rach_ind->sapi) { |
| 425 | case PCU_IF_SAPI_RACH: |
Holger Hans Peter Freyther | 02beed5 | 2013-10-26 20:56:20 +0200 | [diff] [blame] | 426 | rc = BTS::main_bts()->rcv_rach( |
Holger Hans Peter Freyther | b0250eb | 2013-10-17 13:46:19 +0200 | [diff] [blame] | 427 | rach_ind->ra, rach_ind->fn, |
bhargava | 959d1de | 2016-08-17 15:17:21 +0530 | [diff] [blame] | 428 | rach_ind->qta, rach_ind->is_11bit, |
| 429 | (ph_burst_type)rach_ind->burst_type); |
Ivan Kluchnikov | e3a0596 | 2012-03-18 15:48:51 +0400 | [diff] [blame] | 430 | break; |
Vadim Yanitskiy | ffebd24 | 2019-10-05 23:45:31 +0700 | [diff] [blame] | 431 | case PCU_IF_SAPI_PTCCH: |
| 432 | rc = BTS::main_bts()->rcv_ptcch_rach( |
| 433 | rach_ind->trx_nr, rach_ind->ts_nr, |
| 434 | rach_ind->fn, rach_ind->qta); |
| 435 | break; |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 436 | default: |
| 437 | LOGP(DL1IF, LOGL_ERROR, "Received PCU rach request with " |
| 438 | "unsupported sapi %d\n", rach_ind->sapi); |
| 439 | rc = -EINVAL; |
Ivan Kluchnikov | e3a0596 | 2012-03-18 15:48:51 +0400 | [diff] [blame] | 440 | } |
| 441 | |
Ivan Kluchnikov | e3a0596 | 2012-03-18 15:48:51 +0400 | [diff] [blame] | 442 | return rc; |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 443 | } |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 444 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 445 | 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] | 446 | { |
Holger Hans Peter Freyther | b6acfda | 2013-10-17 19:41:11 +0200 | [diff] [blame] | 447 | struct gprs_rlcmac_bts *bts = bts_main_data(); |
Holger Hans Peter Freyther | e8d9a5f | 2013-07-28 19:11:20 +0200 | [diff] [blame] | 448 | struct gprs_bssgp_pcu *pcu; |
Andreas Eversberg | 2b91464 | 2012-07-19 13:06:26 +0200 | [diff] [blame] | 449 | struct gprs_rlcmac_pdch *pdch; |
Andreas Eversberg | 81a12be | 2013-03-16 16:16:41 +0100 | [diff] [blame] | 450 | struct in_addr ia; |
Harald Welte | bb47d95 | 2016-11-17 18:40:02 +0100 | [diff] [blame] | 451 | int rc = 0; |
| 452 | unsigned int trx, ts; |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 453 | int i; |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 454 | |
Andreas Eversberg | 8389fd0 | 2012-07-18 10:06:48 +0200 | [diff] [blame] | 455 | if (info_ind->version != PCU_IF_VERSION) { |
| 456 | fprintf(stderr, "PCU interface version number of BTS (%d) is " |
| 457 | "different (%d).\nPlease re-compile!\n", |
| 458 | info_ind->version, PCU_IF_VERSION); |
| 459 | exit(-1); |
| 460 | } |
| 461 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 462 | LOGP(DL1IF, LOGL_DEBUG, "Info indication received:\n"); |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 463 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 464 | if (!(info_ind->flags & PCU_IF_FLAG_ACTIVE)) { |
| 465 | LOGP(DL1IF, LOGL_NOTICE, "BTS not available\n"); |
Stefan Sperling | 5b22fb7 | 2018-02-14 19:46:33 +0100 | [diff] [blame] | 466 | if (!bts->active) |
| 467 | return -EAGAIN; |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 468 | bssgp_failed: |
Stefan Sperling | 5b22fb7 | 2018-02-14 19:46:33 +0100 | [diff] [blame] | 469 | bts->active = false; |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 470 | /* free all TBF */ |
Harald Welte | bb47d95 | 2016-11-17 18:40:02 +0100 | [diff] [blame] | 471 | for (trx = 0; trx < ARRAY_SIZE(bts->trx); trx++) { |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 472 | bts->trx[trx].arfcn = info_ind->trx[trx].arfcn; |
Harald Welte | bb47d95 | 2016-11-17 18:40:02 +0100 | [diff] [blame] | 473 | 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] | 474 | bts->trx[trx].pdch[ts].free_resources(); |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 475 | } |
Daniel Willmann | 6d8884d | 2014-06-04 18:30:59 +0200 | [diff] [blame] | 476 | gprs_bssgp_destroy(); |
| 477 | exit(0); |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 478 | } |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 479 | LOGP(DL1IF, LOGL_INFO, "BTS available\n"); |
Neels Hofmeyr | bdc55fa | 2018-02-21 00:39:07 +0100 | [diff] [blame] | 480 | LOGP(DL1IF, LOGL_DEBUG, " mcc=%03u\n", info_ind->mcc); |
| 481 | 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] | 482 | LOGP(DL1IF, LOGL_DEBUG, " lac=%d\n", info_ind->lac); |
| 483 | LOGP(DL1IF, LOGL_DEBUG, " rac=%d\n", info_ind->rac); |
Harald Welte | 1473b37 | 2019-03-21 19:48:55 +0100 | [diff] [blame] | 484 | LOGP(DL1IF, LOGL_DEBUG, " cell_id=%d\n", info_ind->cell_id); |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 485 | LOGP(DL1IF, LOGL_DEBUG, " bsic=%d\n", info_ind->bsic); |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 486 | LOGP(DL1IF, LOGL_DEBUG, " nsei=%d\n", info_ind->nsei); |
| 487 | LOGP(DL1IF, LOGL_DEBUG, " nse_timer=%d %d %d %d %d %d %d\n", |
| 488 | info_ind->nse_timer[0], info_ind->nse_timer[1], |
| 489 | info_ind->nse_timer[2], info_ind->nse_timer[3], |
| 490 | info_ind->nse_timer[4], info_ind->nse_timer[5], |
| 491 | info_ind->nse_timer[6]); |
| 492 | LOGP(DL1IF, LOGL_DEBUG, " cell_timer=%d %d %d %d %d %d %d %d %d %d " |
| 493 | "%d\n", |
| 494 | info_ind->cell_timer[0], info_ind->cell_timer[1], |
| 495 | info_ind->cell_timer[2], info_ind->cell_timer[3], |
| 496 | info_ind->cell_timer[4], info_ind->cell_timer[5], |
| 497 | info_ind->cell_timer[6], info_ind->cell_timer[7], |
| 498 | info_ind->cell_timer[8], info_ind->cell_timer[9], |
| 499 | info_ind->cell_timer[10]); |
| 500 | LOGP(DL1IF, LOGL_DEBUG, " repeat_time=%d\n", info_ind->repeat_time); |
| 501 | LOGP(DL1IF, LOGL_DEBUG, " repeat_count=%d\n", info_ind->repeat_count); |
| 502 | LOGP(DL1IF, LOGL_DEBUG, " bvci=%d\n", info_ind->bvci); |
| 503 | LOGP(DL1IF, LOGL_DEBUG, " t3142=%d\n", info_ind->t3142); |
| 504 | LOGP(DL1IF, LOGL_DEBUG, " t3169=%d\n", info_ind->t3169); |
| 505 | LOGP(DL1IF, LOGL_DEBUG, " t3191=%d\n", info_ind->t3191); |
| 506 | LOGP(DL1IF, LOGL_DEBUG, " t3193=%d (ms)\n", info_ind->t3193_10ms * 10); |
| 507 | LOGP(DL1IF, LOGL_DEBUG, " t3195=%d\n", info_ind->t3195); |
| 508 | LOGP(DL1IF, LOGL_DEBUG, " n3101=%d\n", info_ind->n3101); |
| 509 | LOGP(DL1IF, LOGL_DEBUG, " n3103=%d\n", info_ind->n3103); |
| 510 | LOGP(DL1IF, LOGL_DEBUG, " n3105=%d\n", info_ind->n3105); |
| 511 | LOGP(DL1IF, LOGL_DEBUG, " cv_countdown=%d\n", info_ind->cv_countdown); |
| 512 | LOGP(DL1IF, LOGL_DEBUG, " dl_tbf_ext=%d\n", info_ind->dl_tbf_ext); |
| 513 | 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] | 514 | bts->bsic = info_ind->bsic; |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 515 | for (i = 0; i < 4; i++) { |
| 516 | if ((info_ind->flags & (PCU_IF_FLAG_CS1 << i))) |
| 517 | LOGP(DL1IF, LOGL_DEBUG, " Use CS%d\n", i+1); |
| 518 | } |
| 519 | for (i = 0; i < 9; i++) { |
| 520 | if ((info_ind->flags & (PCU_IF_FLAG_MCS1 << i))) |
| 521 | LOGP(DL1IF, LOGL_DEBUG, " Use MCS%d\n", i+1); |
| 522 | } |
| 523 | LOGP(DL1IF, LOGL_DEBUG, " initial_cs=%d\n", info_ind->initial_cs); |
| 524 | LOGP(DL1IF, LOGL_DEBUG, " initial_mcs=%d\n", info_ind->initial_mcs); |
| 525 | LOGP(DL1IF, LOGL_DEBUG, " nsvci=%d\n", info_ind->nsvci[0]); |
| 526 | LOGP(DL1IF, LOGL_DEBUG, " local_port=%d\n", info_ind->local_port[0]); |
| 527 | 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] | 528 | ia.s_addr = htonl(info_ind->remote_ip[0]); |
| 529 | LOGP(DL1IF, LOGL_DEBUG, " remote_ip=%s\n", inet_ntoa(ia)); |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 530 | |
Holger Hans Peter Freyther | e8d9a5f | 2013-07-28 19:11:20 +0200 | [diff] [blame] | 531 | pcu = gprs_bssgp_create_and_connect(bts, info_ind->local_port[0], |
Harald Welte | 30a73d8 | 2013-03-10 08:54:30 +0000 | [diff] [blame] | 532 | info_ind->remote_ip[0], info_ind->remote_port[0], |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 533 | info_ind->nsei, info_ind->nsvci[0], info_ind->bvci, |
Neels Hofmeyr | bdc55fa | 2018-02-21 00:39:07 +0100 | [diff] [blame] | 534 | 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] | 535 | info_ind->cell_id); |
Holger Hans Peter Freyther | e8d9a5f | 2013-07-28 19:11:20 +0200 | [diff] [blame] | 536 | if (!pcu) { |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 537 | LOGP(DL1IF, LOGL_NOTICE, "SGSN not available\n"); |
| 538 | goto bssgp_failed; |
| 539 | } |
| 540 | |
| 541 | bts->cs1 = !!(info_ind->flags & PCU_IF_FLAG_CS1); |
| 542 | bts->cs2 = !!(info_ind->flags & PCU_IF_FLAG_CS2); |
| 543 | bts->cs3 = !!(info_ind->flags & PCU_IF_FLAG_CS3); |
| 544 | bts->cs4 = !!(info_ind->flags & PCU_IF_FLAG_CS4); |
| 545 | if (!bts->cs1 && !bts->cs2 && !bts->cs3 && !bts->cs4) |
| 546 | bts->cs1 = 1; |
| 547 | if (info_ind->t3142) { /* if timer values are set */ |
Pau Espin Pedrol | 28f160e | 2019-09-05 14:48:35 +0200 | [diff] [blame] | 548 | osmo_tdef_set(bts->T_defs_bts, 3142, info_ind->t3142, OSMO_TDEF_S); |
| 549 | osmo_tdef_set(bts->T_defs_bts, 3169, info_ind->t3169, OSMO_TDEF_S); |
| 550 | osmo_tdef_set(bts->T_defs_bts, 3191, info_ind->t3191, OSMO_TDEF_S); |
| 551 | osmo_tdef_set(bts->T_defs_bts, 3193, info_ind->t3193_10ms * 10, OSMO_TDEF_MS); |
| 552 | 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] | 553 | bts->n3101 = info_ind->n3101; |
| 554 | bts->n3103 = info_ind->n3103; |
| 555 | bts->n3105 = info_ind->n3105; |
| 556 | } |
Andreas Eversberg | 8b761a3 | 2012-07-20 21:50:31 +0200 | [diff] [blame] | 557 | if (!bts->force_cs) { |
| 558 | if (info_ind->initial_cs < 1 || info_ind->initial_cs > 4) |
Andreas Eversberg | 499ff41 | 2012-10-03 14:21:36 +0200 | [diff] [blame] | 559 | bts->initial_cs_dl = 1; |
Andreas Eversberg | 8b761a3 | 2012-07-20 21:50:31 +0200 | [diff] [blame] | 560 | else |
Andreas Eversberg | 499ff41 | 2012-10-03 14:21:36 +0200 | [diff] [blame] | 561 | bts->initial_cs_dl = info_ind->initial_cs; |
| 562 | bts->initial_cs_ul = bts->initial_cs_dl; |
Andreas Eversberg | 8b761a3 | 2012-07-20 21:50:31 +0200 | [diff] [blame] | 563 | } |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 564 | |
Harald Welte | bb47d95 | 2016-11-17 18:40:02 +0100 | [diff] [blame] | 565 | for (trx = 0; trx < ARRAY_SIZE(bts->trx); trx++) { |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 566 | bts->trx[trx].arfcn = info_ind->trx[trx].arfcn; |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 567 | if ((info_ind->flags & PCU_IF_FLAG_SYSMO) |
| 568 | && info_ind->trx[trx].hlayer1) { |
Max | cad867e | 2016-04-21 14:35:55 +0200 | [diff] [blame] | 569 | #ifdef ENABLE_DIRECT_PHY |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 570 | LOGP(DL1IF, LOGL_DEBUG, " TRX %d hlayer1=%x\n", trx, |
| 571 | info_ind->trx[trx].hlayer1); |
| 572 | if (!bts->trx[trx].fl1h) |
| 573 | bts->trx[trx].fl1h = l1if_open_pdch( |
Max | 58b6646 | 2016-05-13 10:34:15 +0200 | [diff] [blame] | 574 | trx, |
Max | 2efdf69 | 2016-02-22 11:39:30 +0100 | [diff] [blame] | 575 | info_ind->trx[trx].hlayer1, |
| 576 | bts->gsmtap); |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 577 | if (!bts->trx[trx].fl1h) { |
| 578 | LOGP(DL1IF, LOGL_FATAL, "Failed to open direct " |
| 579 | "DSP access for PDCH.\n"); |
| 580 | exit(0); |
| 581 | } |
| 582 | #else |
| 583 | LOGP(DL1IF, LOGL_FATAL, "Compiled without direct DSP " |
| 584 | "access for PDCH, but enabled at " |
| 585 | "BTS. Please deactivate it!\n"); |
| 586 | exit(0); |
| 587 | #endif |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 588 | } |
| 589 | |
Harald Welte | bb47d95 | 2016-11-17 18:40:02 +0100 | [diff] [blame] | 590 | for (ts = 0; ts < ARRAY_SIZE(bts->trx[0].pdch); ts++) { |
Andreas Eversberg | 2b91464 | 2012-07-19 13:06:26 +0200 | [diff] [blame] | 591 | pdch = &bts->trx[trx].pdch[ts]; |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 592 | if ((info_ind->trx[trx].pdch_mask & (1 << ts))) { |
| 593 | /* FIXME: activate dynamically at RLCMAC */ |
Holger Hans Peter Freyther | 17b0d83 | 2013-10-19 17:37:48 +0200 | [diff] [blame] | 594 | if (!pdch->is_enabled()) { |
Max | cad867e | 2016-04-21 14:35:55 +0200 | [diff] [blame] | 595 | #ifdef ENABLE_DIRECT_PHY |
Andreas Eversberg | a23c7ee | 2012-12-18 10:47:28 +0100 | [diff] [blame] | 596 | if ((info_ind->flags & |
| 597 | PCU_IF_FLAG_SYSMO)) |
| 598 | l1if_connect_pdch( |
| 599 | bts->trx[trx].fl1h, ts); |
| 600 | #endif |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 601 | pcu_tx_act_req(trx, ts, 1); |
Holger Hans Peter Freyther | 17b0d83 | 2013-10-19 17:37:48 +0200 | [diff] [blame] | 602 | pdch->enable(); |
Andreas Eversberg | 3b7461c | 2012-07-20 11:19:59 +0200 | [diff] [blame] | 603 | } |
Andreas Eversberg | 2b91464 | 2012-07-19 13:06:26 +0200 | [diff] [blame] | 604 | pdch->tsc = info_ind->trx[trx].tsc[ts]; |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 605 | LOGP(DL1IF, LOGL_INFO, "PDCH: trx=%d ts=%d\n", |
| 606 | trx, ts); |
| 607 | } else { |
Holger Hans Peter Freyther | 17b0d83 | 2013-10-19 17:37:48 +0200 | [diff] [blame] | 608 | if (pdch->is_enabled()) { |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 609 | pcu_tx_act_req(trx, ts, 0); |
Holger Hans Peter Freyther | 09ef27a | 2013-10-20 16:37:05 +0200 | [diff] [blame] | 610 | pdch->free_resources(); |
Holger Hans Peter Freyther | 17b0d83 | 2013-10-19 17:37:48 +0200 | [diff] [blame] | 611 | pdch->disable(); |
Andreas Eversberg | 3b7461c | 2012-07-20 11:19:59 +0200 | [diff] [blame] | 612 | } |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 613 | } |
| 614 | } |
| 615 | } |
| 616 | |
Stefan Sperling | 5b22fb7 | 2018-02-14 19:46:33 +0100 | [diff] [blame] | 617 | bts->active = true; |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 618 | return rc; |
| 619 | } |
| 620 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 621 | 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] | 622 | { |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 623 | uint8_t fn13 = time_ind->fn % 13; |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 624 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 625 | /* omit frame numbers not starting at a MAC block */ |
| 626 | if (fn13 != 0 && fn13 != 4 && fn13 != 8) |
| 627 | return 0; |
Max | 3741f14 | 2017-06-26 12:10:12 +0200 | [diff] [blame] | 628 | |
| 629 | 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] | 630 | |
Holger Hans Peter Freyther | 9b30c7f | 2013-10-17 19:59:56 +0200 | [diff] [blame] | 631 | BTS::main_bts()->set_current_frame_number(time_ind->fn); |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 632 | return 0; |
| 633 | } |
| 634 | |
Andreas Eversberg | 2b91464 | 2012-07-19 13:06:26 +0200 | [diff] [blame] | 635 | static int pcu_rx_pag_req(struct gsm_pcu_if_pag_req *pag_req) |
| 636 | { |
| 637 | LOGP(DL1IF, LOGL_DEBUG, "Paging request received: chan_needed=%d " |
| 638 | "length=%d\n", pag_req->chan_needed, pag_req->identity_lv[0]); |
| 639 | |
Pau Espin Pedrol | 32499b6 | 2019-12-09 13:55:12 +0100 | [diff] [blame] | 640 | /* check if identity does not fit: length > sizeof(lv) - 1 */ |
| 641 | if (pag_req->identity_lv[0] >= sizeof(pag_req->identity_lv)) { |
| 642 | LOGP(DL1IF, LOGL_ERROR, "Paging identity too large (%" PRIu8 ")\n", |
| 643 | pag_req->identity_lv[0]); |
| 644 | return -EINVAL; |
| 645 | } |
| 646 | |
Pau Espin Pedrol | fbfab29 | 2019-12-23 13:19:25 +0100 | [diff] [blame] | 647 | return BTS::main_bts()->add_paging(pag_req->chan_needed, &pag_req->identity_lv[1], |
| 648 | pag_req->identity_lv[0]); |
Andreas Eversberg | 2b91464 | 2012-07-19 13:06:26 +0200 | [diff] [blame] | 649 | } |
| 650 | |
Harald Welte | 3447c4a | 2017-07-11 00:06:38 +0200 | [diff] [blame] | 651 | static int pcu_rx_susp_req(struct gsm_pcu_if_susp_req *susp_req) |
| 652 | { |
| 653 | struct bssgp_bvc_ctx *bctx = gprs_bssgp_pcu_current_bctx(); |
| 654 | struct gprs_ra_id ra_id; |
| 655 | |
| 656 | gsm48_parse_ra(&ra_id, susp_req->ra_id); |
| 657 | |
| 658 | LOGP(DL1IF, LOGL_INFO, "GPRS Suspend request received: TLLI=0x%08x RAI=%s\n", |
| 659 | susp_req->tlli, osmo_rai_name(&ra_id)); |
| 660 | |
| 661 | if (!bctx) |
| 662 | return -1; |
| 663 | |
| 664 | return bssgp_tx_suspend(bctx->nsei, susp_req->tlli, &ra_id); |
| 665 | } |
| 666 | |
Oliver Smith | cfb6321 | 2019-09-05 17:13:33 +0200 | [diff] [blame] | 667 | static int pcu_rx_app_info_req(struct gsm_pcu_if_app_info_req *app_info_req) |
| 668 | { |
| 669 | LListHead<GprsMs> *ms_iter; |
| 670 | BTS *bts = BTS::main_bts(); |
| 671 | struct gprs_rlcmac_bts *bts_data = bts->bts_data(); |
| 672 | |
| 673 | LOGP(DL1IF, LOGL_DEBUG, "Application Information Request received: type=0x%08x len=%i\n", |
| 674 | app_info_req->application_type, app_info_req->len); |
| 675 | |
| 676 | bts_data->app_info_pending = 0; |
| 677 | llist_for_each(ms_iter, &bts->ms_store().ms_list()) { |
| 678 | GprsMs *ms = ms_iter->entry(); |
| 679 | if (!ms->dl_tbf()) |
| 680 | continue; |
| 681 | bts_data->app_info_pending++; |
| 682 | ms->app_info_pending = true; |
| 683 | } |
| 684 | |
| 685 | if (!bts_data->app_info_pending) { |
| 686 | LOGP(DL1IF, LOGL_NOTICE, "Packet Application Information will not be sent, no subscribers with active" |
| 687 | " TBF\n"); |
| 688 | return -1; |
| 689 | } |
| 690 | |
| 691 | if (bts_data->app_info) { |
| 692 | LOGP(DL1IF, LOGL_NOTICE, "Previous Packet Application Information was not sent to all subscribers," |
| 693 | " overwriting with new one\n"); |
| 694 | msgb_free(bts_data->app_info); |
| 695 | } |
| 696 | |
| 697 | LOGP(DL1IF, LOGL_INFO, "Sending Packet Application Information to %i subscribers with active TBF\n", |
| 698 | bts_data->app_info_pending); |
| 699 | bts_data->app_info = gprs_rlcmac_app_info_msg(app_info_req); |
| 700 | return 0; |
| 701 | } |
| 702 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 703 | 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] | 704 | { |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 705 | int rc = 0; |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 706 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 707 | switch (msg_type) { |
| 708 | case PCU_IF_MSG_DATA_IND: |
Harald Welte | 717cdf5 | 2017-07-21 21:56:23 +0200 | [diff] [blame] | 709 | rc = pcu_rx_data_ind(&pcu_prim->u.data_ind); |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 710 | break; |
Andreas Eversberg | a9be154 | 2012-09-27 09:23:24 +0200 | [diff] [blame] | 711 | case PCU_IF_MSG_DATA_CNF: |
| 712 | rc = pcu_rx_data_cnf(&pcu_prim->u.data_cnf); |
| 713 | break; |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 714 | case PCU_IF_MSG_RTS_REQ: |
| 715 | rc = pcu_rx_rts_req(&pcu_prim->u.rts_req); |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 716 | break; |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 717 | case PCU_IF_MSG_RACH_IND: |
| 718 | rc = pcu_rx_rach_ind(&pcu_prim->u.rach_ind); |
| 719 | break; |
| 720 | case PCU_IF_MSG_INFO_IND: |
| 721 | rc = pcu_rx_info_ind(&pcu_prim->u.info_ind); |
| 722 | break; |
| 723 | case PCU_IF_MSG_TIME_IND: |
| 724 | rc = pcu_rx_time_ind(&pcu_prim->u.time_ind); |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 725 | break; |
Andreas Eversberg | 2b91464 | 2012-07-19 13:06:26 +0200 | [diff] [blame] | 726 | case PCU_IF_MSG_PAG_REQ: |
| 727 | rc = pcu_rx_pag_req(&pcu_prim->u.pag_req); |
| 728 | break; |
Harald Welte | 3447c4a | 2017-07-11 00:06:38 +0200 | [diff] [blame] | 729 | case PCU_IF_MSG_SUSP_REQ: |
| 730 | rc = pcu_rx_susp_req(&pcu_prim->u.susp_req); |
| 731 | break; |
Oliver Smith | cfb6321 | 2019-09-05 17:13:33 +0200 | [diff] [blame] | 732 | case PCU_IF_MSG_APP_INFO_REQ: |
| 733 | rc = pcu_rx_app_info_req(&pcu_prim->u.app_info_req); |
| 734 | break; |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 735 | default: |
Thorsten Alteholz | 8bb7904 | 2018-10-06 10:42:58 +0200 | [diff] [blame] | 736 | LOGP(DL1IF, LOGL_ERROR, "Received unknown PCU msg type %d\n", |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 737 | msg_type); |
| 738 | rc = -EINVAL; |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 739 | } |
Philipp Maier | 8ccf704 | 2018-04-10 13:12:42 +0200 | [diff] [blame] | 740 | |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 741 | return rc; |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 742 | } |