| /* |
| * (C) 2008-2017 by Harald Welte <laforge@gnumonks.org> |
| * (C) 2013 by Holger Freyther <holger@freyther.de> |
| * (C) 2014-2016 by sysmocom - s.f.m.c. GmbH |
| * |
| * All Rights Reserved |
| * |
| * SPDX-License-Identifier: GPL-2.0+ |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License along |
| * with this program; if not, write to the Free Software Foundation, Inc., |
| * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| */ |
| |
| #include <stdint.h> |
| #include <stdio.h> |
| #include <errno.h> |
| |
| #include <osmocom/gsm/tlv.h> |
| #include <osmocom/gsm/rsl.h> |
| |
| /*! \addtogroup rsl |
| * @{ |
| * GSM Radio Signalling Link messages on the A-bis interface. |
| * 3GPP TS 08.58 version 8.6.0 Release 1999 / ETSI TS 100 596 V8.6.0. |
| * |
| * \file rsl.c */ |
| |
| /*! Size for RSL \ref msgb_alloc */ |
| #define RSL_ALLOC_SIZE 200 |
| /*! Headroom size for RSL \ref msgb_alloc */ |
| #define RSL_ALLOC_HEADROOM 56 |
| |
| /*! Initialize a RSL RLL header |
| * \param[out] dh Caller-allocated RSL RLL header |
| * \param[in] msg_type Message Type */ |
| void rsl_init_rll_hdr(struct abis_rsl_rll_hdr *dh, uint8_t msg_type) |
| { |
| dh->c.msg_discr = ABIS_RSL_MDISC_RLL; |
| dh->c.msg_type = msg_type; |
| dh->ie_chan = RSL_IE_CHAN_NR; |
| dh->ie_link_id = RSL_IE_LINK_IDENT; |
| } |
| |
| /*! Initialize a RSL Common Channel header |
| * \param[out] ch Caller-allocated RSL Common Channel Header |
| * \param[in] msg_type Message Type */ |
| void rsl_init_cchan_hdr(struct abis_rsl_cchan_hdr *ch, uint8_t msg_type) |
| { |
| ch->c.msg_discr = ABIS_RSL_MDISC_COM_CHAN; |
| ch->c.msg_type = msg_type; |
| ch->ie_chan = RSL_IE_CHAN_NR; |
| } |
| |
| /* TLV parser definition for RSL */ |
| const struct tlv_definition rsl_att_tlvdef = { |
| .def = { |
| [RSL_IE_CHAN_NR] = { TLV_TYPE_TV }, |
| [RSL_IE_LINK_IDENT] = { TLV_TYPE_TV }, |
| [RSL_IE_ACT_TYPE] = { TLV_TYPE_TV }, |
| [RSL_IE_BS_POWER] = { TLV_TYPE_TV }, |
| [RSL_IE_CHAN_IDENT] = { TLV_TYPE_TLV }, |
| [RSL_IE_CHAN_MODE] = { TLV_TYPE_TLV }, |
| [RSL_IE_ENCR_INFO] = { TLV_TYPE_TLV }, |
| [RSL_IE_FRAME_NUMBER] = { TLV_TYPE_FIXED, 2 }, |
| [RSL_IE_HANDO_REF] = { TLV_TYPE_TV }, |
| [RSL_IE_L1_INFO] = { TLV_TYPE_FIXED, 2 }, |
| [RSL_IE_L3_INFO] = { TLV_TYPE_TL16V }, |
| [RSL_IE_MS_IDENTITY] = { TLV_TYPE_TLV }, |
| [RSL_IE_MS_POWER] = { TLV_TYPE_TV }, |
| [RSL_IE_PAGING_GROUP] = { TLV_TYPE_TV }, |
| [RSL_IE_PAGING_LOAD] = { TLV_TYPE_FIXED, 2 }, |
| [RSL_IE_PYHS_CONTEXT] = { TLV_TYPE_TLV }, |
| [RSL_IE_ACCESS_DELAY] = { TLV_TYPE_TV }, |
| [RSL_IE_RACH_LOAD] = { TLV_TYPE_TLV }, |
| [RSL_IE_REQ_REFERENCE] = { TLV_TYPE_FIXED, 3 }, |
| [RSL_IE_RELEASE_MODE] = { TLV_TYPE_TV }, |
| [RSL_IE_RESOURCE_INFO] = { TLV_TYPE_TLV }, |
| [RSL_IE_RLM_CAUSE] = { TLV_TYPE_TLV }, |
| [RSL_IE_STARTNG_TIME] = { TLV_TYPE_FIXED, 2 }, |
| [RSL_IE_TIMING_ADVANCE] = { TLV_TYPE_TV }, |
| [RSL_IE_UPLINK_MEAS] = { TLV_TYPE_TLV }, |
| [RSL_IE_CAUSE] = { TLV_TYPE_TLV }, |
| [RSL_IE_MEAS_RES_NR] = { TLV_TYPE_TV }, |
| [RSL_IE_MSG_ID] = { TLV_TYPE_TV }, |
| [RSL_IE_SYSINFO_TYPE] = { TLV_TYPE_TV }, |
| [RSL_IE_MS_POWER_PARAM] = { TLV_TYPE_TLV }, |
| [RSL_IE_BS_POWER_PARAM] = { TLV_TYPE_TLV }, |
| [RSL_IE_PREPROC_PARAM] = { TLV_TYPE_TLV }, |
| [RSL_IE_PREPROC_MEAS] = { TLV_TYPE_TLV }, |
| [RSL_IE_IMM_ASS_INFO] = { TLV_TYPE_TLV }, |
| [RSL_IE_SMSCB_INFO] = { TLV_TYPE_FIXED, 23 }, |
| [RSL_IE_MS_TIMING_OFFSET] = { TLV_TYPE_TV }, |
| [RSL_IE_ERR_MSG] = { TLV_TYPE_TLV }, |
| [RSL_IE_FULL_BCCH_INFO] = { TLV_TYPE_TLV }, |
| [RSL_IE_CHAN_NEEDED] = { TLV_TYPE_TV }, |
| [RSL_IE_CB_CMD_TYPE] = { TLV_TYPE_TV }, |
| [RSL_IE_SMSCB_MSG] = { TLV_TYPE_TLV }, |
| [RSL_IE_FULL_IMM_ASS_INFO] = { TLV_TYPE_TLV }, |
| [RSL_IE_SACCH_INFO] = { TLV_TYPE_TLV }, |
| [RSL_IE_CBCH_LOAD_INFO] = { TLV_TYPE_TV }, |
| [RSL_IE_SMSCB_CHAN_INDICATOR] = { TLV_TYPE_TV }, |
| [RSL_IE_GROUP_CALL_REF] = { TLV_TYPE_TLV }, |
| [RSL_IE_CHAN_DESC] = { TLV_TYPE_TLV }, |
| [RSL_IE_NCH_DRX_INFO] = { TLV_TYPE_TLV }, |
| [RSL_IE_CMD_INDICATOR] = { TLV_TYPE_TLV }, |
| [RSL_IE_EMLPP_PRIO] = { TLV_TYPE_TV }, |
| [RSL_IE_UIC] = { TLV_TYPE_TLV }, |
| [RSL_IE_MAIN_CHAN_REF] = { TLV_TYPE_TV }, |
| [RSL_IE_MR_CONFIG] = { TLV_TYPE_TLV }, |
| [RSL_IE_MR_CONTROL] = { TLV_TYPE_TV }, |
| [RSL_IE_SUP_CODEC_TYPES] = { TLV_TYPE_TLV }, |
| [RSL_IE_CODEC_CONFIG] = { TLV_TYPE_TLV }, |
| [RSL_IE_RTD] = { TLV_TYPE_TV }, |
| [RSL_IE_TFO_STATUS] = { TLV_TYPE_TV }, |
| [RSL_IE_LLP_APDU] = { TLV_TYPE_TLV }, |
| [RSL_IE_SIEMENS_MRPCI] = { TLV_TYPE_TV }, |
| [RSL_IE_OSMO_REP_ACCH_CAP] = { TLV_TYPE_TLV }, |
| [RSL_IE_IPAC_PROXY_UDP] = { TLV_TYPE_FIXED, 2 }, |
| [RSL_IE_IPAC_BSCMPL_TOUT] = { TLV_TYPE_TV }, |
| [RSL_IE_IPAC_REMOTE_IP] = { TLV_TYPE_FIXED, 4 }, |
| [RSL_IE_IPAC_REMOTE_PORT] = { TLV_TYPE_FIXED, 2 }, |
| [RSL_IE_IPAC_RTP_PAYLOAD] = { TLV_TYPE_TV }, |
| [RSL_IE_IPAC_LOCAL_PORT] = { TLV_TYPE_FIXED, 2 }, |
| [RSL_IE_IPAC_SPEECH_MODE] = { TLV_TYPE_TV }, |
| [RSL_IE_IPAC_LOCAL_IP] = { TLV_TYPE_FIXED, 4 }, |
| [RSL_IE_IPAC_CONN_ID] = { TLV_TYPE_FIXED, 2 }, |
| [RSL_IE_IPAC_RTP_CSD_FMT] = { TLV_TYPE_TV }, |
| [RSL_IE_IPAC_RTP_JIT_BUF] = { TLV_TYPE_FIXED, 2 }, |
| [RSL_IE_IPAC_RTP_COMPR] = { TLV_TYPE_TV }, |
| [RSL_IE_IPAC_RTP_PAYLOAD2] = { TLV_TYPE_TV }, |
| [RSL_IE_IPAC_RTP_MPLEX] = { TLV_TYPE_FIXED, 8 }, |
| [RSL_IE_IPAC_RTP_MPLEX_ID] = { TLV_TYPE_TV }, |
| }, |
| }; |
| |
| /*! Encode channel number as per Section 9.3.1 |
| * \param[in] Channel Type (RSL_CHAN_...) |
| * \param[in] subch Sub-Channel within Channel |
| * \param[in] timeslot Air interface timeslot |
| * \returns RSL Channel Number (TS 08.58 9.3.1) */ |
| uint8_t rsl_enc_chan_nr(uint8_t type, uint8_t subch, uint8_t timeslot) |
| { |
| uint8_t ret; |
| |
| ret = (timeslot & 0x07) | type; |
| |
| switch (type) { |
| case RSL_CHAN_Lm_ACCHs: |
| subch &= 0x01; |
| break; |
| case RSL_CHAN_SDCCH4_ACCH: |
| subch &= 0x03; |
| break; |
| case RSL_CHAN_SDCCH8_ACCH: |
| subch &= 0x07; |
| break; |
| default: |
| /* no subchannels allowed */ |
| subch = 0x00; |
| break; |
| } |
| ret |= (subch << 3); |
| |
| return ret; |
| } |
| |
| /*! Decode RSL channel number |
| * \param[in] chan_nr Channel Number |
| * \param[out] type Channel Type |
| * \param[out] subch Sub-channel Number |
| * \param[out] timeslot Timeslot |
| */ |
| int rsl_dec_chan_nr(uint8_t chan_nr, uint8_t *type, uint8_t *subch, uint8_t *timeslot) |
| { |
| *timeslot = chan_nr & 0x7; |
| |
| if ((chan_nr & 0xf8) == RSL_CHAN_Bm_ACCHs) { |
| *type = RSL_CHAN_Bm_ACCHs; |
| *subch = 0; |
| } else if ((chan_nr & 0xf0) == RSL_CHAN_Lm_ACCHs) { |
| *type = RSL_CHAN_Lm_ACCHs; |
| *subch = (chan_nr >> 3) & 0x1; |
| } else if ((chan_nr & 0xe0) == RSL_CHAN_SDCCH4_ACCH) { |
| *type = RSL_CHAN_SDCCH4_ACCH; |
| *subch = (chan_nr >> 3) & 0x3; |
| } else if ((chan_nr & 0xc0) == RSL_CHAN_SDCCH8_ACCH) { |
| *type = RSL_CHAN_SDCCH8_ACCH; |
| *subch = (chan_nr >> 3) & 0x7; |
| } else if ((chan_nr & 0xf8) == RSL_CHAN_BCCH) { |
| *type = RSL_CHAN_BCCH; |
| *subch = 0; |
| } else if ((chan_nr & 0xf8) == RSL_CHAN_RACH) { |
| *type = RSL_CHAN_RACH; |
| *subch = 0; |
| } else if ((chan_nr & 0xf8) == RSL_CHAN_PCH_AGCH) { |
| *type = RSL_CHAN_PCH_AGCH; |
| *subch = 0; |
| } else if ((chan_nr & 0xf8) == RSL_CHAN_OSMO_PDCH) { |
| *type = RSL_CHAN_OSMO_PDCH; |
| *subch = 0; |
| } else if ((chan_nr & 0xf8) == RSL_CHAN_OSMO_CBCH4) { |
| *type = RSL_CHAN_OSMO_CBCH4; |
| *subch = 0; |
| } else if ((chan_nr & 0xf8) == RSL_CHAN_OSMO_CBCH8) { |
| *type = RSL_CHAN_OSMO_CBCH8; |
| *subch = 0; |
| } else |
| return -EINVAL; |
| |
| return 0; |
| } |
| |
| /*! Get human-readable string for RSL channel number, in caller-provided buffer. |
| * \param[out] buf caller-provided output buffer |
| * \param[in] buf_len size of buf in bytes |
| * \param[in] chan_nr channel number to be stringified |
| * \returns buf with string |
| */ |
| char *rsl_chan_nr_str_buf(char *buf, size_t buf_len, uint8_t chan_nr) |
| { |
| int ts = chan_nr & 7; |
| uint8_t cbits = chan_nr >> 3; |
| |
| if (cbits == ABIS_RSL_CHAN_NR_CBITS_Bm_ACCHs) |
| snprintf(buf, buf_len, "TCH/F on TS%d", ts); |
| else if ((cbits & 0x1e) == ABIS_RSL_CHAN_NR_CBITS_Lm_ACCHs(0)) |
| snprintf(buf, buf_len, "TCH/H(%u) on TS%d", cbits & 0x01, ts); |
| else if ((cbits & 0x1c) == ABIS_RSL_CHAN_NR_CBITS_SDCCH4_ACCH(0)) |
| snprintf(buf, buf_len, "SDCCH/4(%u) on TS%d", cbits & 0x03, ts); |
| else if ((cbits & 0x18) == ABIS_RSL_CHAN_NR_CBITS_SDCCH8_ACCH(0)) |
| snprintf(buf, buf_len, "SDCCH/8(%u) on TS%d", cbits & 0x07, ts); |
| else if (cbits == ABIS_RSL_CHAN_NR_CBITS_BCCH) |
| snprintf(buf, buf_len, "BCCH on TS%d", ts); |
| else if (cbits == ABIS_RSL_CHAN_NR_CBITS_RACH) |
| snprintf(buf, buf_len, "RACH on TS%d", ts); |
| else if (cbits == ABIS_RSL_CHAN_NR_CBITS_PCH_AGCH) |
| snprintf(buf, buf_len, "PCH/AGCH on TS%d", ts); |
| else if (cbits == ABIS_RSL_CHAN_NR_CBITS_OSMO_PDCH) |
| snprintf(buf, buf_len, "PDCH on TS%d", ts); |
| else if (cbits == ABIS_RSL_CHAN_NR_CBITS_OSMO_CBCH4) |
| snprintf(buf, buf_len, "CBCH(SDCCH/4) on TS%d", ts); |
| else if (cbits == ABIS_RSL_CHAN_NR_CBITS_OSMO_CBCH8) |
| snprintf(buf, buf_len, "CBCH(SDCCH/8) on TS%d", ts); |
| else |
| snprintf(buf, buf_len, "UNKNOWN on TS%d", ts); |
| |
| return buf; |
| } |
| |
| /*! Get human-readable string for RSL channel number, in static buffer. |
| * \param[in] chan_nr channel number to be stringified |
| * \returns buf with string |
| */ |
| const char *rsl_chan_nr_str(uint8_t chan_nr) |
| { |
| static __thread char str[20]; |
| return rsl_chan_nr_str_buf(str, sizeof(str), chan_nr); |
| } |
| |
| /*! Get human-readable string for RSL channel number, in dynamically-allocated buffer. |
| * \param[in] ctx talloc context from which to allocate output buffer |
| * \param[in] chan_nr channel number to be stringified |
| * \returns dynamically-allocated buffer with string representation |
| */ |
| char *rsl_chan_nr_str_c(const void *ctx, uint8_t chan_nr) |
| { |
| char *str = talloc_size(ctx, 20); |
| if (!str) |
| return NULL; |
| return rsl_chan_nr_str_buf(str, 20, chan_nr); |
| } |
| |
| static const struct value_string rsl_err_vals[] = { |
| { RSL_ERR_RADIO_IF_FAIL, "Radio Interface Failure" }, |
| { RSL_ERR_RADIO_LINK_FAIL, "Radio Link Failure" }, |
| { RSL_ERR_HANDOVER_ACC_FAIL, "Handover Access Failure" }, |
| { RSL_ERR_TALKER_ACC_FAIL, "Talker Access Failure" }, |
| { RSL_ERR_OM_INTERVENTION, "O&M Intervention" }, |
| { RSL_ERR_NORMAL_UNSPEC, "Normal event, unspecified" }, |
| { RSL_ERR_T_MSRFPCI_EXP, "Siemens: T_MSRFPCI Expired" }, |
| { RSL_ERR_EQUIPMENT_FAIL, "Equipment Failure" }, |
| { RSL_ERR_RR_UNAVAIL, "Radio Resource not available" }, |
| { RSL_ERR_TERR_CH_FAIL, "Terrestrial Channel Failure" }, |
| { RSL_ERR_CCCH_OVERLOAD, "CCCH Overload" }, |
| { RSL_ERR_ACCH_OVERLOAD, "ACCH Overload" }, |
| { RSL_ERR_PROCESSOR_OVERLOAD, "Processor Overload" }, |
| { RSL_ERR_BTS_NOT_EQUIPPED, "BTS not equipped" }, |
| { RSL_ERR_REMOTE_TRANSC_FAIL, "Remote Transcoder Failure" }, |
| { RSL_ERR_NOTIFICATION_OVERFL, "Notification Overflow" }, |
| { RSL_ERR_RES_UNAVAIL, "Resource not available, unspecified" }, |
| { RSL_ERR_TRANSC_UNAVAIL, "Transcoding not available" }, |
| { RSL_ERR_SERV_OPT_UNAVAIL, "Service or Option not available" }, |
| { RSL_ERR_ENCR_UNIMPL, "Encryption algorithm not implemented" }, |
| { RSL_ERR_SERV_OPT_UNIMPL, "Service or Option not implemented" }, |
| { RSL_ERR_RCH_ALR_ACTV_ALLOC, "Radio channel already activated" }, |
| { RSL_ERR_INVALID_MESSAGE, "Invalid Message, unspecified" }, |
| { RSL_ERR_MSG_DISCR, "Message Discriminator Error" }, |
| { RSL_ERR_MSG_TYPE, "Message Type Error" }, |
| { RSL_ERR_MSG_SEQ, "Message Sequence Error" }, |
| { RSL_ERR_IE_ERROR, "General IE error" }, |
| { RSL_ERR_MAND_IE_ERROR, "Mandatory IE error" }, |
| { RSL_ERR_OPT_IE_ERROR, "Optional IE error" }, |
| { RSL_ERR_IE_NONEXIST, "IE non-existent" }, |
| { RSL_ERR_IE_LENGTH, "IE length error" }, |
| { RSL_ERR_IE_CONTENT, "IE content error" }, |
| { RSL_ERR_PROTO, "Protocol error, unspecified" }, |
| { RSL_ERR_INTERWORKING, "Interworking error, unspecified" }, |
| { 0, NULL } |
| }; |
| |
| /*! Get human-readable name for RSL Error */ |
| const char *rsl_err_name(uint8_t err) |
| { |
| return get_value_string(rsl_err_vals, err); |
| } |
| |
| /* Names for Radio Link Layer Management */ |
| static const struct value_string rsl_msgt_names[] = { |
| { RSL_MT_DATA_REQ, "DATA_REQ" }, |
| { RSL_MT_DATA_IND, "DATA_IND" }, |
| { RSL_MT_ERROR_IND, "ERROR_IND" }, |
| { RSL_MT_EST_REQ, "EST_REQ" }, |
| { RSL_MT_EST_CONF, "EST_CONF" }, |
| { RSL_MT_EST_IND, "EST_IND" }, |
| { RSL_MT_REL_REQ, "REL_REQ" }, |
| { RSL_MT_REL_CONF, "REL_CONF" }, |
| { RSL_MT_REL_IND, "REL_IND" }, |
| { RSL_MT_UNIT_DATA_REQ, "UNIT_DATA_REQ" }, |
| { RSL_MT_UNIT_DATA_IND, "UNIT_DATA_IND" }, |
| { RSL_MT_SUSP_REQ, "SUSP_REQ" }, |
| { RSL_MT_SUSP_CONF, "SUSP_CONF" }, |
| { RSL_MT_RES_REQ, "RES_REQ" }, |
| { RSL_MT_RECON_REQ, "RECON_REQ" }, |
| |
| { RSL_MT_BCCH_INFO, "BCCH_INFO" }, |
| { RSL_MT_CCCH_LOAD_IND, "CCCH_LOAD_IND" }, |
| { RSL_MT_CHAN_RQD, "CHAN_RQD" }, |
| { RSL_MT_DELETE_IND, "DELETE_IND" }, |
| { RSL_MT_PAGING_CMD, "PAGING_CMD" }, |
| { RSL_MT_IMMEDIATE_ASSIGN_CMD, "IMM_ASS_CMD" }, |
| { RSL_MT_SMS_BC_REQ, "SMS_BC_REQ" }, |
| { RSL_MT_CHAN_CONF, "CHAN_CONF" }, |
| |
| { RSL_MT_RF_RES_IND, "RF_RES_IND" }, |
| { RSL_MT_SACCH_FILL, "SACCH_FILL" }, |
| { RSL_MT_OVERLOAD, "OVERLOAD" }, |
| { RSL_MT_ERROR_REPORT, "ERROR_REPORT" }, |
| { RSL_MT_SMS_BC_CMD, "SMS_BC_CMD" }, |
| { RSL_MT_CBCH_LOAD_IND, "CBCH_LOAD_IND" }, |
| { RSL_MT_NOT_CMD, "NOTIFY_CMD" }, |
| |
| { RSL_MT_CHAN_ACTIV, "CHAN_ACTIV" }, |
| { RSL_MT_CHAN_ACTIV_ACK, "CHAN_ACTIV_ACK" }, |
| { RSL_MT_CHAN_ACTIV_NACK, "CHAN_ACTIV_NACK" }, |
| { RSL_MT_CONN_FAIL, "CONN_FAIL" }, |
| { RSL_MT_DEACTIVATE_SACCH, "DEACTIVATE_SACCH" }, |
| { RSL_MT_ENCR_CMD, "ENCR_CMD" }, |
| { RSL_MT_HANDO_DET, "HANDOVER_DETECT" }, |
| { RSL_MT_MEAS_RES, "MEAS_RES" }, |
| { RSL_MT_MODE_MODIFY_REQ, "MODE_MODIFY_REQ" }, |
| { RSL_MT_MODE_MODIFY_ACK, "MODE_MODIFY_ACK" }, |
| { RSL_MT_MODE_MODIFY_NACK, "MODE_MODIFY_NACK" }, |
| { RSL_MT_PHY_CONTEXT_REQ, "PHY_CONTEXT_REQ" }, |
| { RSL_MT_PHY_CONTEXT_CONF, "PHY_CONTEXT_CONF" }, |
| { RSL_MT_RF_CHAN_REL, "RF_CHAN_REL" }, |
| { RSL_MT_MS_POWER_CONTROL, "MS_POWER_CONTROL" }, |
| { RSL_MT_BS_POWER_CONTROL, "BS_POWER_CONTROL" }, |
| { RSL_MT_PREPROC_CONFIG, "PREPROC_CONFIG" }, |
| { RSL_MT_PREPROC_MEAS_RES, "PREPROC_MEAS_RES" }, |
| { RSL_MT_RF_CHAN_REL_ACK, "RF_CHAN_REL_ACK" }, |
| { RSL_MT_SACCH_INFO_MODIFY, "SACCH_INFO_MODIFY" }, |
| { RSL_MT_TALKER_DET, "TALKER_DETECT" }, |
| { RSL_MT_LISTENER_DET, "LISTENER_DETECT" }, |
| { RSL_MT_REMOTE_CODEC_CONF_REP, "REM_CODEC_CONF_REP" }, |
| { RSL_MT_RTD_REP, "RTD_REQ" }, |
| { RSL_MT_PRE_HANDO_NOTIF, "HANDO_NOTIF" }, |
| { RSL_MT_MR_CODEC_MOD_REQ, "CODEC_MOD_REQ" }, |
| { RSL_MT_MR_CODEC_MOD_ACK, "CODEC_MOD_ACK" }, |
| { RSL_MT_MR_CODEC_MOD_NACK, "CODEC_MOD_NACK" }, |
| { RSL_MT_MR_CODEC_MOD_PER, "CODEC_MODE_PER" }, |
| { RSL_MT_TFO_REP, "TFO_REP" }, |
| { RSL_MT_TFO_MOD_REQ, "TFO_MOD_REQ" }, |
| { RSL_MT_LOCATION_INFO, "LOCATION_INFO" }, |
| { RSL_MT_OSMO_ETWS_CMD, "OSMO_ETWS_CMD" }, |
| { 0, NULL } |
| }; |
| |
| |
| /*! Get human-readable string for RSL Message Type */ |
| const char *rsl_msg_name(uint8_t msg_type) |
| { |
| return get_value_string(rsl_msgt_names, msg_type); |
| } |
| |
| /*! ip.access specific */ |
| static const struct value_string rsl_ipac_msgt_names[] = { |
| { RSL_MT_IPAC_PDCH_ACT, "IPAC_PDCH_ACT" }, |
| { RSL_MT_IPAC_PDCH_ACT_ACK, "IPAC_PDCH_ACT_ACK" }, |
| { RSL_MT_IPAC_PDCH_ACT_NACK, "IPAC_PDCH_ACT_NACK" }, |
| { RSL_MT_IPAC_PDCH_DEACT, "IPAC_PDCH_DEACT" }, |
| { RSL_MT_IPAC_PDCH_DEACT_ACK, "IPAC_PDCH_DEACT_ACK" }, |
| { RSL_MT_IPAC_PDCH_DEACT_NACK, "IPAC_PDCH_DEACT_NACK" }, |
| { RSL_MT_IPAC_CONNECT_MUX, "IPAC_CONNECT_MUX" }, |
| { RSL_MT_IPAC_CONNECT_MUX_ACK, "IPAC_CONNECT_MUX_ACK" }, |
| { RSL_MT_IPAC_CONNECT_MUX_NACK, "IPAC_CONNECT_MUX_NACK" }, |
| { RSL_MT_IPAC_BIND_MUX, "IPAC_BIND_MUX" }, |
| { RSL_MT_IPAC_BIND_MUX_ACK, "IPAC_BIND_MUX_ACK" }, |
| { RSL_MT_IPAC_BIND_MUX_NACK, "IPAC_BIND_MUX_NACK" }, |
| { RSL_MT_IPAC_DISC_MUX, "IPAC_DISC_MUX" }, |
| { RSL_MT_IPAC_DISC_MUX_ACK, "IPAC_DISC_MUX_ACK" }, |
| { RSL_MT_IPAC_DISC_MUX_NACK, "IPAC_DISC_MUX_NACK" }, |
| { RSL_MT_IPAC_CRCX, "IPAC_CRCX" }, |
| { RSL_MT_IPAC_CRCX_ACK, "IPAC_CRCX_ACK" }, |
| { RSL_MT_IPAC_CRCX_NACK, "IPAC_CRCX_NACK" }, |
| { RSL_MT_IPAC_MDCX, "IPAC_MDCX" }, |
| { RSL_MT_IPAC_MDCX_ACK, "IPAC_MDCX_ACK" }, |
| { RSL_MT_IPAC_MDCX_NACK, "IPAC_MDCX_NACK" }, |
| { RSL_MT_IPAC_DLCX_IND, "IPAC_DLCX_IND" }, |
| { RSL_MT_IPAC_DLCX, "IPAC_DLCX" }, |
| { RSL_MT_IPAC_DLCX_ACK, "IPAC_DLCX_ACK" }, |
| { RSL_MT_IPAC_DLCX_NACK, "IPAC_DLCX_NACK" }, |
| { RSL_MT_IPAC_DIR_RETR_ENQ, "IPAC_DIR_RETR_ENQ" }, |
| { 0, NULL } |
| }; |
| |
| /*! Get human-readable name of ip.access RSL msg type */ |
| const char *rsl_ipac_msg_name(uint8_t msg_type) |
| { |
| return get_value_string(rsl_ipac_msgt_names, msg_type); |
| } |
| |
| /*! Get human-readable name of standard or ip.access RSL msg type. |
| * If msg_type is a standard RSL message type, return its human-readable name. |
| * Otherwise return rsl_ipac_msg_name(msg_type). */ |
| const char *rsl_or_ipac_msg_name(uint8_t msg_type) |
| { |
| const char *str = get_value_string_or_null(rsl_msgt_names, msg_type); |
| if (str) |
| return str; |
| return rsl_ipac_msg_name(msg_type); |
| } |
| |
| static const struct value_string rsl_rlm_cause_strs[] = { |
| { RLL_CAUSE_T200_EXPIRED, "Timer T200 expired (N200+1) times" }, |
| { RLL_CAUSE_REEST_REQ, "Re-establishment request" }, |
| { RLL_CAUSE_UNSOL_UA_RESP, "Unsolicited UA response" }, |
| { RLL_CAUSE_UNSOL_DM_RESP, "Unsolicited DM response" }, |
| { RLL_CAUSE_UNSOL_DM_RESP_MF, "Unsolicited DM response, multiple frame" }, |
| { RLL_CAUSE_UNSOL_SPRV_RESP, "Unsolicited supervisory response" }, |
| { RLL_CAUSE_SEQ_ERR, "Sequence Error" }, |
| { RLL_CAUSE_UFRM_INC_PARAM, "U-Frame with incorrect parameters" }, |
| { RLL_CAUSE_SFRM_INC_PARAM, "S-Frame with incorrect parameters" }, |
| { RLL_CAUSE_IFRM_INC_MBITS, "I-Frame with incorrect use of M bit" }, |
| { RLL_CAUSE_IFRM_INC_LEN, "I-Frame with incorrect length" }, |
| { RLL_CAUSE_FRM_UNIMPL, "Frame not implemented" }, |
| { RLL_CAUSE_SABM_MF, "SABM command, multiple frame established state" }, |
| { RLL_CAUSE_SABM_INFO_NOTALL, "SABM frame with information not allowed in this state" }, |
| { 0, NULL }, |
| }; |
| |
| /*! Get human-readable string for RLM cause */ |
| const char *rsl_rlm_cause_name(uint8_t err) |
| { |
| return get_value_string(rsl_rlm_cause_strs, err); |
| } |
| |
| /* Section 3.3.2.3 TS 05.02. I think this looks like a table */ |
| int rsl_ccch_conf_to_bs_cc_chans(int ccch_conf) |
| { |
| switch (ccch_conf) { |
| case RSL_BCCH_CCCH_CONF_1_NC: |
| return 1; |
| case RSL_BCCH_CCCH_CONF_1_C: |
| return 1; |
| case RSL_BCCH_CCCH_CONF_2_NC: |
| return 2; |
| case RSL_BCCH_CCCH_CONF_3_NC: |
| return 3; |
| case RSL_BCCH_CCCH_CONF_4_NC: |
| return 4; |
| default: |
| return -1; |
| } |
| } |
| |
| /* Section 3.3.2.3 TS 05.02 */ |
| int rsl_ccch_conf_to_bs_ccch_sdcch_comb(int ccch_conf) |
| { |
| switch (ccch_conf) { |
| case RSL_BCCH_CCCH_CONF_1_NC: |
| return 0; |
| case RSL_BCCH_CCCH_CONF_1_C: |
| return 1; |
| case RSL_BCCH_CCCH_CONF_2_NC: |
| return 0; |
| case RSL_BCCH_CCCH_CONF_3_NC: |
| return 0; |
| case RSL_BCCH_CCCH_CONF_4_NC: |
| return 0; |
| default: |
| return -1; |
| } |
| } |
| |
| /*! Push a RSL RLL header onto an existing msgb |
| * \param msg Message Buffer to which RLL header shall be pushed |
| * \param[in] msg_type RSL Message Type |
| * \param[in] chan_nr RSL Channel Number |
| * \param[in] link_id RSL Link Identifier |
| * \param[in] transparent Transparent to BTS (1) or not (0) */ |
| void rsl_rll_push_hdr(struct msgb *msg, uint8_t msg_type, uint8_t chan_nr, |
| uint8_t link_id, int transparent) |
| { |
| struct abis_rsl_rll_hdr *rh; |
| |
| rh = (struct abis_rsl_rll_hdr *) msgb_push(msg, sizeof(*rh)); |
| rsl_init_rll_hdr(rh, msg_type); |
| if (transparent) |
| rh->c.msg_discr |= ABIS_RSL_MDISC_TRANSP; |
| rh->chan_nr = chan_nr; |
| rh->link_id = link_id; |
| |
| /* set the l2 header pointer */ |
| msg->l2h = (uint8_t *)rh; |
| } |
| |
| /*! Wrap msgb in L3 Info IE and push a RSL RLL header |
| * \param[in] msg Message Buffer to which L3 Header shall be appended |
| * \param[in] msg_type RSL Message Type |
| * \param[in] chan_hr RSL Channel Number |
| * \param[in] link_id Link Identififer |
| * \param[in] transparent Transparent to BTS (1) or not (0) */ |
| void rsl_rll_push_l3(struct msgb *msg, uint8_t msg_type, uint8_t chan_nr, |
| uint8_t link_id, int transparent) |
| { |
| uint8_t l3_len = msg->tail - (uint8_t *)msgb_l3(msg); |
| |
| /* construct a RSLms RLL message (DATA INDICATION, UNIT DATA |
| * INDICATION) and send it off via RSLms */ |
| |
| /* Push the L3 IE tag and lengh */ |
| msgb_tv16_push(msg, RSL_IE_L3_INFO, l3_len); |
| |
| /* Then push the RSL header */ |
| rsl_rll_push_hdr(msg, msg_type, chan_nr, link_id, transparent); |
| } |
| |
| /*! Create msgb with RSL RLL header |
| * \param[in] msg_type RSL Message Type |
| * \param[in] chan_nr RSL Channel Number |
| * \param[in] link_id RSL Link Identifier |
| * \param[in] transparent Transparent to BTS (1) or not (0) |
| * \returns callee-allocated msgb; NULL on error */ |
| struct msgb *rsl_rll_simple(uint8_t msg_type, uint8_t chan_nr, |
| uint8_t link_id, int transparent) |
| { |
| struct abis_rsl_rll_hdr *rh; |
| struct msgb *msg; |
| |
| msg = msgb_alloc_headroom(RSL_ALLOC_SIZE+RSL_ALLOC_HEADROOM, |
| RSL_ALLOC_HEADROOM, "rsl_rll_simple"); |
| |
| if (!msg) |
| return NULL; |
| |
| /* put the RSL header */ |
| rh = (struct abis_rsl_rll_hdr *) msgb_put(msg, sizeof(*rh)); |
| rsl_init_rll_hdr(rh, msg_type); |
| if (transparent) |
| rh->c.msg_discr |= ABIS_RSL_MDISC_TRANSP; |
| rh->chan_nr = chan_nr; |
| rh->link_id = link_id; |
| |
| /* set the l2 header pointer */ |
| msg->l2h = (uint8_t *)rh; |
| |
| return msg; |
| } |
| |
| /*! TLV parser definitions for IPA embedded IEs */ |
| const struct tlv_definition rsl_ipac_eie_tlvdef = { |
| .def = { |
| [RSL_IPAC_EIE_RXLEV] = { TLV_TYPE_TV }, |
| [RSL_IPAC_EIE_RXQUAL] = { TLV_TYPE_TV }, |
| [RSL_IPAC_EIE_FREQ_ERR] = { TLV_TYPE_FIXED, 2 }, |
| [RSL_IPAC_EIE_TIMING_ERR] = { TLV_TYPE_TV }, |
| [RSL_IPAC_EIE_MEAS_AVG_CFG] = { TLV_TYPE_TLV }, |
| [RSL_IPAC_EIE_BS_PWR_CTL] = { TLV_TYPE_FIXED, 3 }, |
| [RSL_IPAC_EIE_MS_PWR_CTL] = { TLV_TYPE_FIXED, 3 }, |
| [RSL_IPAC_EIE_HANDO_THRESH] = { TLV_TYPE_FIXED, 6 }, |
| [RSL_IPAC_EIE_NCELL_DEFAULTS] = { TLV_TYPE_FIXED, 3 }, |
| [RSL_IPAC_EIE_NCELL_LIST] = { TLV_TYPE_TLV }, |
| [RSL_IPAC_EIE_PC_THRESH_COMP] = { TLV_TYPE_FIXED, 10 }, |
| [RSL_IPAC_EIE_HO_THRESH_COMP] = { TLV_TYPE_FIXED, 10 }, |
| [RSL_IPAC_EIE_HO_CAUSE] = { TLV_TYPE_TLV }, |
| [RSL_IPAC_EIE_HO_CANDIDATES] = { TLV_TYPE_TLV }, |
| [RSL_IPAC_EIE_NCELL_BA_CHG_LIST]= { TLV_TYPE_TLV }, |
| [RSL_IPAC_EIE_NUM_OF_MS] = { TLV_TYPE_TV }, |
| [RSL_IPAC_EIE_HO_CAND_EXT] = { TLV_TYPE_TLV }, |
| [RSL_IPAC_EIE_NCELL_DEF_EXT] = { TLV_TYPE_TLV }, |
| [RSL_IPAC_EIE_NCELL_LIST_EXT] = { TLV_TYPE_TLV }, |
| [RSL_IPAC_EIE_MASTER_KEY] = { TLV_TYPE_TLV }, |
| [RSL_IPAC_EIE_MASTER_SALT] = { TLV_TYPE_TLV }, |
| [RSL_IPAC_EIE_MEAS_TRANS_RES] = {TLV_TYPE_TV}, |
| [RSL_IPAC_EIE_3G_HO_PARAM] = { TLV_TYPE_TLV }, |
| [RSL_IPAC_EIE_3G_NCELL_LIST] = { TLV_TYPE_TLV }, |
| [RSL_IPAC_EIE_SDCCH_CTL_PARAM] = { TLV_TYPE_TV }, |
| [RSL_IPAC_EIE_AMR_CONV_THRESH] = { TLV_TYPE_FIXED, 9 }, |
| }, |
| }; |
| |
| /*! String names of RSL Channel Activation Types */ |
| const struct value_string rsl_act_type_names[] = { |
| { RSL_ACT_TYPE_INITIAL, "INITIAL" }, |
| { RSL_ACT_TYPE_REACT, "REACT" }, |
| { RSL_ACT_INTRA_IMM_ASS, "INTRA_IMM_ASS" }, |
| { RSL_ACT_INTRA_NORM_ASS, "INTRA_NORM_ASS" }, |
| { RSL_ACT_INTER_ASYNC, "INTER_ASYNC" }, |
| { RSL_ACT_INTER_SYNC, "INTER_SYNC" }, |
| { RSL_ACT_SECOND_ADD, "SECOND_ADD" }, |
| { RSL_ACT_SECOND_MULTI, "SECOND_MULTI" }, |
| { RSL_ACT_OSMO_PDCH, "OSMO_PDCH" }, |
| { 0, NULL } |
| }; |
| |
| /*! @} */ |