January 2023 - gerrit-log - lists.osmocom.org

Change in osmo-trx[master]: radio interface: fix init

by Hoernchen

Hoernchen has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmo-trx/+/30911 ) Change subject: radio interface: fix init ...................................................................... radio interface: fix init 5561f1129d0bed0ebd2a49fde07e8ee91e487fd6 introduced some changes, but while RadioInterface lost its call to close() that was previously used to improperly reset the buffers upon init() that call was accidentally not removed for RadioInterfaceMulti and RadioInterfaceResamp, so those reset previously initialized values to 0 during init(), which break osmo-trx for weird setups. Change-Id: I74fc1586f8ae0832f4093ba8a44a1c70c78ec3d8 --- M Transceiver52M/radioInterfaceMulti.cpp M Transceiver52M/radioInterfaceResamp.cpp 2 files changed, 0 insertions(+), 4 deletions(-) git pull ssh://gerrit.osmocom.org:29418/osmo-trx refs/changes/11/30911/1 diff --git a/Transceiver52M/radioInterfaceMulti.cpp b/Transceiver52M/radioInterfaceMulti.cpp index eeb0c97..a7195b4 100644 --- a/Transceiver52M/radioInterfaceMulti.cpp +++ b/Transceiver52M/radioInterfaceMulti.cpp @@ -153,8 +153,6 @@ return false; } - close(); - convertSendBuffer.resize(1); convertRecvBuffer.resize(1); diff --git a/Transceiver52M/radioInterfaceResamp.cpp b/Transceiver52M/radioInterfaceResamp.cpp index 37167ae..869acd0 100644 --- a/Transceiver52M/radioInterfaceResamp.cpp +++ b/Transceiver52M/radioInterfaceResamp.cpp @@ -98,8 +98,6 @@ { float cutoff = 1.0f; - close(); - switch (type) { case RadioDevice::RESAMP_64M: resamp_inrate = RESAMP_64M_INRATE; -- To view, visit https://gerrit.osmocom.org/c/osmo-trx/+/30911 To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: osmo-trx Gerrit-Branch: master Gerrit-Change-Id: I74fc1586f8ae0832f4093ba8a44a1c70c78ec3d8 Gerrit-Change-Number: 30911 Gerrit-PatchSet: 1 Gerrit-Owner: Hoernchen <ewild(a)sysmocom.de> Gerrit-MessageType: newchange

2 years, 5 months

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Change in libosmo-gprs[master]: llc: Log error loading gprs chiper plugins

by pespin

pespin has uploaded this change for review. ( https://gerrit.osmocom.org/c/libosmo-gprs/+/30910 ) Change subject: llc: Log error loading gprs chiper plugins ...................................................................... llc: Log error loading gprs chiper plugins Change-Id: Ie0438b444c2aff8991736806256fb67b59ee8bcc --- M src/llc/llc.c 1 file changed, 3 insertions(+), 1 deletion(-) git pull ssh://gerrit.osmocom.org:29418/libosmo-gprs refs/changes/10/30910/1 diff --git a/src/llc/llc.c b/src/llc/llc.c index 3ddba6a..1f52851 100644 --- a/src/llc/llc.c +++ b/src/llc/llc.c @@ -126,8 +126,10 @@ int rc; OSMO_ASSERT(location == OSMO_GPRS_LLC_LOCATION_MS || location == OSMO_GPRS_LLC_LOCATION_SGSN) - if ((rc = gprs_cipher_load(cipher_plugin_path)) != 0) + if ((rc = gprs_cipher_load(cipher_plugin_path)) != 0) { + LOGLLC(LOGL_NOTICE, "Failed loading GPRS cipher plugins from %s\n", cipher_plugin_path); return rc; + } if (g_ctx) talloc_free(g_ctx); -- To view, visit https://gerrit.osmocom.org/c/libosmo-gprs/+/30910 To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: libosmo-gprs Gerrit-Branch: master Gerrit-Change-Id: Ie0438b444c2aff8991736806256fb67b59ee8bcc Gerrit-Change-Number: 30910 Gerrit-PatchSet: 1 Gerrit-Owner: pespin <pespin(a)sysmocom.de> Gerrit-MessageType: newchange

2 years, 5 months

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Change in libosmo-abis[master]: lapd_pcap: fix illegal VLA within struct

by pespin

Attention is currently required from: Hoernchen. pespin has posted comments on this change. ( https://gerrit.osmocom.org/c/libosmo-abis/+/30908 ) Change subject: lapd_pcap: fix illegal VLA within struct ...................................................................... Patch Set 3: Code-Review+1 -- To view, visit https://gerrit.osmocom.org/c/libosmo-abis/+/30908 To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: libosmo-abis Gerrit-Branch: master Gerrit-Change-Id: I547d900ba88c60bae5b53345e1aee104bacd310d Gerrit-Change-Number: 30908 Gerrit-PatchSet: 3 Gerrit-Owner: Hoernchen <ewild(a)sysmocom.de> Gerrit-Reviewer: Jenkins Builder Gerrit-Reviewer: pespin <pespin(a)sysmocom.de> Gerrit-Attention: Hoernchen <ewild(a)sysmocom.de> Gerrit-Comment-Date: Mon, 09 Jan 2023 17:40:28 +0000 Gerrit-HasComments: No Gerrit-Has-Labels: Yes Gerrit-MessageType: comment

2 years, 5 months

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Change in osmo-sgsn[master]: vty: Introduce encryption cipher-plugin-path command

by pespin

pespin has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmo-sgsn/+/30909 ) Change subject: vty: Introduce encryption cipher-plugin-path command ...................................................................... vty: Introduce encryption cipher-plugin-path command The load of plugins will eventually be moved to libosmo-gprs implementation, and path will be passed as a parameter. Once it's moved inside libosmo-gprs, it will be more strict on load failures, which can cause internally if the path doesn't exist (unless NULL is passed). Hence, add a VTY config to allow configuring the right path, and have it disabled by default. Change-Id: I4f965c7afafa193f4d7486750dd3e43cca22bb65 --- M include/osmocom/sgsn/sgsn.h M src/sgsn/sgsn_main.c M src/sgsn/sgsn_vty.c M tests/osmo-sgsn_test-nodes.vty 4 files changed, 30 insertions(+), 2 deletions(-) git pull ssh://gerrit.osmocom.org:29418/osmo-sgsn refs/changes/09/30909/1 diff --git a/include/osmocom/sgsn/sgsn.h b/include/osmocom/sgsn/sgsn.h index 441a614..6e93178 100644 --- a/include/osmocom/sgsn/sgsn.h +++ b/include/osmocom/sgsn/sgsn.h @@ -77,6 +77,7 @@ /* misc */ struct gprs_ns2_inst *nsi; + char *crypt_cipher_plugin_path; enum sgsn_auth_policy auth_policy; uint8_t gea_encryption_mask; uint8_t uea_encryption_mask; diff --git a/src/sgsn/sgsn_main.c b/src/sgsn/sgsn_main.c index d9d454c..04de6a2 100644 --- a/src/sgsn/sgsn_main.c +++ b/src/sgsn/sgsn_main.c @@ -413,8 +413,6 @@ sgsn->cfg.nsi = sgsn_nsi; bssgp_set_bssgp_callback(sgsn_bssgp_dispatch_ns_unitdata_req_cb, sgsn_nsi); - gprs_llc_init("/usr/local/lib/osmocom/crypt/"); - gprs_ns2_vty_init(sgsn_nsi); bssgp_vty_init(); gprs_llc_vty_init(); @@ -449,6 +447,8 @@ if (rc < 0) exit(1); + gprs_llc_init(sgsn->cfg.crypt_cipher_plugin_path); + rc = sgsn_gtp_init(sgsn); if (rc) { LOGP(DGPRS, LOGL_FATAL, "Cannot bind/listen on GTP socket\n"); diff --git a/src/sgsn/sgsn_vty.c b/src/sgsn/sgsn_vty.c index d3dba92..9bd9845 100644 --- a/src/sgsn/sgsn_vty.c +++ b/src/sgsn/sgsn_vty.c @@ -284,6 +284,8 @@ vty_out(vty, "%s", VTY_NEWLINE); } + if (g_cfg->crypt_cipher_plugin_path) + vty_out(vty, "encryption cipher-plugin-path %s%s", g_cfg->crypt_cipher_plugin_path, VTY_NEWLINE); if (g_cfg->sgsn_ipa_name) vty_out(vty, " gsup ipa-name %s%s", g_cfg->sgsn_ipa_name, VTY_NEWLINE); if (g_cfg->gsup_server_addr.sin_addr.s_addr) @@ -841,6 +843,27 @@ return CMD_SUCCESS; } +DEFUN(cfg_encrypt_cipher_plugin_path, cfg_encrypt_cipher_plugin_path_cmd, + "encryption cipher-plugin-path PATH", + ENCRYPTION_STR + "Path to gprs encryption cipher plugin directory\n" + "Plugin path\n") +{ + osmo_talloc_replace_string(sgsn, &sgsn->cfg.crypt_cipher_plugin_path, argv[0]); + + return CMD_SUCCESS; +} + +DEFUN(cfg_no_encrypt_cipher_plugin_path, cfg_no_encrypt_cipher_plugin_path_cmd, + "no encryption cipher-plugin-path PATH", + NO_STR ENCRYPTION_STR + "Path to gprs encryption cipher plugin directory\n" + "Plugin path\n") +{ + TALLOC_FREE(sgsn->cfg.crypt_cipher_plugin_path); + return CMD_SUCCESS; +} + DEFUN(cfg_authentication, cfg_authentication_cmd, "authentication (optional|required)", "Whether to enforce MS authentication in GERAN (only with auth-policy remote)\n" @@ -1775,6 +1798,8 @@ install_element(SGSN_NODE, &cfg_encrypt2_cmd); install_element(SGSN_NODE, &cfg_encrypt_cmd); install_element(SGSN_NODE, &cfg_encryption_uea_cmd); + install_element(SGSN_NODE, &cfg_encrypt_cipher_plugin_path_cmd); + install_element(SGSN_NODE, &cfg_no_encrypt_cipher_plugin_path_cmd); install_element(SGSN_NODE, &cfg_gsup_ipa_name_cmd); install_element(SGSN_NODE, &cfg_gsup_remote_ip_cmd); diff --git a/tests/osmo-sgsn_test-nodes.vty b/tests/osmo-sgsn_test-nodes.vty index 22d81d2..4c65415 100644 --- a/tests/osmo-sgsn_test-nodes.vty +++ b/tests/osmo-sgsn_test-nodes.vty @@ -37,6 +37,8 @@ authentication (optional|required) encryption gea <0-4> [<0-4>] [<0-4>] [<0-4>] [<0-4>] encryption uea <0-2> [<0-2>] [<0-2>] + encryption cipher-plugin-path PATH + no encryption cipher-plugin-path PATH gsup ipa-name NAME gsup remote-ip A.B.C.D gsup remote-port <0-65535> -- To view, visit https://gerrit.osmocom.org/c/osmo-sgsn/+/30909 To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: osmo-sgsn Gerrit-Branch: master Gerrit-Change-Id: I4f965c7afafa193f4d7486750dd3e43cca22bb65 Gerrit-Change-Number: 30909 Gerrit-PatchSet: 1 Gerrit-Owner: pespin <pespin(a)sysmocom.de> Gerrit-MessageType: newchange

2 years, 5 months

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Change in libosmo-abis[master]: GPRS Trau frame encoder/decoder for Ericsson RBS

by laforge

laforge has submitted this change. ( https://gerrit.osmocom.org/c/libosmo-abis/+/30717 ) Change subject: GPRS Trau frame encoder/decoder for Ericsson RBS ...................................................................... GPRS Trau frame encoder/decoder for Ericsson RBS The Ericsson RBS BTS family is using a propritary TRAU frame dialect to communicate with the GPRS/EGPRS part of their CCU. There are essentially two implementations available: - GPRS over 16kbps I.460 subslots (very limited, supports only CS1 and CS4) - GPRS/EGPRS over full 64kbps timeslots (supports CS1-4 and MCS1-9) Change-Id: Ib2b232a76588c32cde75b987a7e5fdfddf099cd7 Related: OS#5198 --- M include/Makefile.am A include/osmocom/trau/trau_pcu_ericsson.h M src/Makefile.am A src/trau/trau_pcu_ericsson.c M tests/Makefile.am M tests/testsuite.at A tests/trau_pcu_ericsson/trau_pcu_ericsson_test.c A tests/trau_pcu_ericsson/trau_pcu_ericsson_test.ok 8 files changed, 6,266 insertions(+), 2 deletions(-) Approvals: Jenkins Builder: Verified pespin: Looks good to me, but someone else must approve laforge: Looks good to me, approved diff --git a/include/Makefile.am b/include/Makefile.am index 70f1cd6..a167ef2 100644 --- a/include/Makefile.am +++ b/include/Makefile.am @@ -7,4 +7,5 @@ osmocom/abis/unixsocket_proto.h \ osmocom/trau/trau_frame.h \ osmocom/trau/trau_sync.h \ + osmocom/trau/trau_pcu_ericsson.h \ osmocom/trau/trau_rtp.h diff --git a/include/osmocom/trau/trau_pcu_ericsson.h b/include/osmocom/trau/trau_pcu_ericsson.h new file mode 100644 index 0000000..03a446f --- /dev/null +++ b/include/osmocom/trau/trau_pcu_ericsson.h @@ -0,0 +1,280 @@ +#pragma once + +enum time_adj_val { + TIME_ADJ_NONE, + TIME_ADJ_DELAY_250us, + TIME_ADJ_ADVANCE_250us, +}; + +enum er_cs_or_hdr { + CS_OR_HDR_AB = 0, + CS_OR_HDR_CS1 = 1, + CS_OR_HDR_CS2 = 2, + CS_OR_HDR_CS3 = 3, + CS_OR_HDR_CS4 = 4, + CS_OR_HDR_HDR1 = 5, + CS_OR_HDR_HDR2 = 6, + CS_OR_HDR_HDR3 = 7, +}; + +/* Block Quality / Soft Frame Quality */ +enum er_block_qual { + ER_SFQ_00_09 = 0, + ER_SFQ_10_19 = 1, + ER_SFQ_20_29 = 2, + ER_SFQ_30_39 = 3, + ER_SFQ_40_49 = 4, + ER_SFQ_50_59 = 5, + ER_SFQ_60_69 = 6, + ER_SFQ_70_MORE = 7, +}; + +enum er_ul_chan_mode { + /* no demodulation, ignore uplink */ + ER_UL_CHMOD_VOID = 0, + + /* normal burst, GMSK only */ + ER_UL_CHMOD_NB_GMSK = 1, + + /* normal burst, MCS1..MCS9 or CS1 */ + ER_UL_CHMOD_NB_UNKN = 2, + + /* Access Burst (only TS0 and 8bit) */ + ER_UL_CHMOD_AB = 3, + + /* Access Burst (TS0/1/2) */ + ER_UL_CHMOD_AB_UNKN = 4, +}; + +/* Access burst data */ +struct er_gprs_ab { + uint8_t ab_type; + uint8_t rxlev; + uint16_t acc_delay; + uint16_t data; + + union { + struct { + uint8_t crc; + uint8_t burst_qual; + uint8_t frame_qual; + } type_1; + struct { + uint8_t abi; + uint8_t type; + } type_2; + } u; +}; + +/* CCU->PCU SYNC */ +struct er_ccu_sync_ind { + /* Time Adjustment Value (requested) */ + enum time_adj_val tav; + + /* Downlink Frame Error */ + bool dfe; + + /* Downlink Block Error (bad MAC block from PCU) */ + bool dbe; + + /* PCU Sequene Counter (will lag, must be compensated) */ + uint32_t pseq; + + /* Adjusted Frame Number, Uplink */ + uint32_t afn_ul; + + /* Adjusted Frame Number, Downlink */ + uint32_t afn_dl; +}; + +/* PCU->CCU SYNC */ +struct er_pcu_sync_ind { + /* Time Adjustment Value (acknowledged) */ + enum time_adj_val tav; + bool ul_frame_err; + + /* PCU Sequene Counter (PCU will sync to this value) */ + uint32_t pseq; + + /* Optional, ignored by CCU */ + uint32_t ss; + + /* Optional, ignored by CCU */ + uint32_t fn_ul; + + /* Optional, ignored by CCU */ + uint32_t fn_ss; + + /* Optional, ignored by CCU */ + uint32_t fn_dl; + + /* Optional, ignored by CCU */ + uint32_t ls; +}; + +/* PCU->CCU DATA */ +struct er_pcu_data_ind { + /* Time Adjustment Value (acknowledged) */ + enum time_adj_val tav; + + /* Uplink Frame Error */ + bool ul_frame_err; + + /* Coding Scheme */ + enum er_cs_or_hdr cs_hdr; + + /* Modulation to be applied on coresponding uplink frame, also used to retrieve + * extraordinary ccu_sync_ind frames and ccu_data_ind frames wth Access bursts data. */ + enum er_ul_chan_mode ul_chan_mode; + + /* Attenuation of transmission power, 16 steps, 2dB each */ + uint8_t atten_db; + + /* Timing offset (timing advance) */ + uint8_t timing_offset; + + /* MAC block */ + uint8_t data[155]; +}; + +/* CCU->PCU DATA */ +struct er_ccu_data_ind { + /* Time Adjustment Value (requested) */ + enum time_adj_val tav; + + /* Downlink Block Error (bad MAC block from PCU) */ + bool dbe; + + /* Coding Scheme */ + enum er_cs_or_hdr cs_hdr; + + /* Receive level 63 steps, see also GSM 05.08, section 8.1.4 */ + uint8_t rx_lev; + + /* Estimated Access Delay Deviation (bits, uplink only) */ + int8_t est_acc_del_dev; + + /* Data integrity checks (uplink only) */ + union { + struct { + /* Soft Frame Quality */ + enum er_block_qual block_qual; + /* Parity Check */ + bool parity_ok; + } gprs; + struct { + uint8_t mean_bep; + uint8_t cv_bep; + bool hdr_good; + bool data_good[2]; + } egprs; + } u; + + /* MAC block */ + uint8_t data[155]; + + /* MAC block length + * (uplink only, for downlink cs_hdr and MAC block header will be used + * to determine the length.) */ + uint8_t data_len; + + /* Access burst data (in case an access block was received) */ + struct er_gprs_ab ab[4]; +}; + +enum er_gprs_trau_frame_type { + ER_GPRS_TRAU_FT_NONE, + ER_GPRS_TRAU_FT_SYNC, + ER_GPRS_TRAU_FT_DATA, +}; + +struct er_gprs_trau_frame { + enum er_gprs_trau_frame_type type; + union { + struct er_ccu_sync_ind ccu_sync_ind; + struct er_ccu_data_ind ccu_data_ind; + struct er_pcu_sync_ind pcu_sync_ind; + struct er_pcu_data_ind pcu_data_ind; + } u; +}; + +#define ER_GPRS_TRAU_FRAME_LEN_16K 324 /* 320 +/-4 bit for time alignment */ +#define ER_GPRS_TRAU_FRAME_LEN_64K 1296 /* 1280 +/-16 bit for time alignment */ +int er_gprs_trau_frame_encode_16k(ubit_t *bits, struct er_gprs_trau_frame *fr); +int er_gprs_trau_frame_decode_16k(struct er_gprs_trau_frame *fr, const ubit_t *bits); +int er_gprs_trau_frame_encode_64k(ubit_t *bits, struct er_gprs_trau_frame *fr); +int er_gprs_trau_frame_decode_64k(struct er_gprs_trau_frame *fr, const ubit_t *bits); + +/* + * Idle pattern + * ============ + * An inactive CCU will send an idle pattern, which is a sequence of alternating ones and zeros (101010101...) The + * idle pattern indicates that the CCU available but in idle state. To leave the idle state a channel activation + * via RSL must be carried out. It is not possible to "wake up" an idle CCU by just sending TRAU frames to it. + * + * + * Synchronization procedure + * ========================= + * When the PDCH is activated, the CCU becomes active at its designated E1 timeslot/subslot. It sends out ccu_sync_ind + * frames and expects pcu_sync_ind frames from the PCU. When the CCU does not receive any pcu_sync_ind frames, the CCU + * becomes inactive until the PDCH is activated again. + * + * CCU is synchronized to the PCU by sending pcu_sync_ind frames with an incrementing PSEQ sequence number to the CCU. + * The PSEQ has no relation to the actual frame number. It just counts the TRAU frames sent over the E1 link. When + * the CCU receives a valid pcu_sync_ind it will synchronize its local PSEQ counter to the received PSEQ and respond + * back with a ccu_sync_ind that echos the PSEQ and also contains the current GSM frame numbers. The synchronization + * is then complete and the PCU may start sending pcu_data_ind. + * + * PCU CCU + * | | + * |--------pcu_sync_ind-------->| + * |<-------idle pattern---------| + * |--------pcu_sync_ind-------->| + * |<-------idle pattern---------| + * |--------pcu_sync_ind-------->| + * |<-------idle pattern---------| + * |--------pcu_sync_ind-------->| + * |<-------ccu_sync_ind---------| + * |--------pcu_sync_ind-------->| + * |<-------ccu_sync_ind---------| + * |--------pcu_sync_ind-------->| + * |<-------ccu_sync_ind---------| + * |--------pcu_data_ind-------->| + * |<-------ccu_data_ind---------| + * |--------pcu_data_ind-------->| + * |<-------ccu_data_ind---------| + * + * While pcu_data_ind and ccu_data_ind frames are passed over the link the PCU has no way to get the current PSEQ or + * any GSM frame number from the CCU. It must calculate those values locally. However, it is possible to request + * a ccu_sync_ind from the CCU at any time by setting the requested demodulation to ER_UL_CHMOD_VOID in one + * pcu_data_ind. It should be pointed out that the requested ccu_sync_ind will steal one pcu_data_ind. The requested + * ccu_sync_ind message will also only contain the GSM frame numbers but not the PSEQ value. If the GSM frame numbers + * in the received ccu_sync_ind are deviating from the local frame numbers, the synchronization procedure can be + * carried out again. + * + * PCU CCU + * | | + * |--------pcu_data_ind-------->| + * |<-------ccu_data_ind---------| + * |--------pcu_data_ind-------->| + * |<-------ccu_data_ind---------| + * |--------pcu_data_ind-------->| (ER_UL_CHMOD_VOID) + * |<-------ccu_sync_ind---------| + * |--------pcu_data_ind-------->| + * |<-------ccu_data_ind---------| + * + * It also should be mentioned that due to link latency, there will naturally be a gap between the PCU local PSEQ and + * the PSEQ reported by the CCU. This information is important since it must be used to compensate the GSM frame + * numbers. + * + * The procedure is very similar to what is described in US Patent No. 5,978,368 from Nov.2, 1999 + * + * Usage of Timing Adjustment (TAV) parameter + * ========================================== + * The time adjustment is controlled by the CCU. The TAV value received in TRAU frames that originate from the CCU is + * the ordered timing adjustment. The TAV value in TRAU frames that originate from the PCU is the acknowledged time + * adjustment. When a timing adjustment is requested by the CCU, the PCU acknowledges it by sending the requested + * value back. The timing adjustment is performed immediately within the same frame by appending or removing bits + * at the end. This delays or advances the timing of the subsequent frame. + * + * The procedure is very similar to the one described in: GSM 08.60, section 4.6.1.2 */ diff --git a/src/Makefile.am b/src/Makefile.am index cf8de47..600ed54 100644 --- a/src/Makefile.am +++ b/src/Makefile.am @@ -43,6 +43,7 @@ libosmotrau_la_LIBADD = $(COMMONLIBS) $(ORTP_LIBS) libosmotrau_la_SOURCES = trau/osmo_ortp.c \ trau/trau_frame.c \ + trau/trau_pcu_ericsson.c \ trau/trau_sync.c \ trau/trau_rtp_conv.c diff --git a/src/trau/trau_pcu_ericsson.c b/src/trau/trau_pcu_ericsson.c new file mode 100644 index 0000000..9292f23 --- /dev/null +++ b/src/trau/trau_pcu_ericsson.c @@ -0,0 +1,2000 @@ +/* + * (C) 2022 by sysmocom - s.f.m.c. GmbH + * Author: Philipp Maier <pmaier(a)sysmocom.de> + * 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. + * + */ + +#include <stdio.h> +#include <stdint.h> +#include <errno.h> +#include <osmocom/core/msgb.h> +#include <osmocom/core/bitvec.h> +#include <osmocom/core/crc16gen.h> +#include <osmocom/core/logging.h> +#include <arpa/inet.h> +#include <osmocom/trau/trau_pcu_ericsson.h> +#include <osmocom/gsm/gsm0502.h> + +#define E1_TRAU_BITS_MSGB 2048 + +/* CRC polynom for CS1 TRAU frame protection: X^16+X^12+X^5+1 */ +const struct osmo_crc16gen_code cs1_crc16 = { 16, 0x1021, 0, 0xffff }; + +/* Frame Type C-bits: C1..C5 */ +#define PCU_TRAU_ER_FT_PCU_SYNC_IND 0x0F +#define PCU_TRAU_ER_FT_CCU_SYNC_IND 0x15 +#define PCU_TRAU_ER_FT_DATA_IND 0x1A +#define PCU_TRAU_ER_FT_DATA9_IND 0x04 + +const ubit_t T_bits_16[] = { + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, /* (+8 variable bits) */ +}; + +const ubit_t T_bits_64[] = { + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, /* (+16 variable bits) */ +}; + +/* Calc an odd parity bit over a given number of bits */ +static ubit_t calc_parity(const ubit_t *bits, size_t len) +{ + size_t i; + ubit_t par = 1; + for (i = 0; i < len; i++) + par ^= bits[i]; + return par; +} + +/* Put data to TRAU frame, skip T bits */ +static int put_trau_data(ubit_t *bits, size_t bits_len, + const ubit_t *bits_map, size_t bits_map_len, const ubit_t *bits_in, size_t offs, size_t len) +{ + size_t bit_count = 0; + size_t i = 0; + + /* The bits map must always cover all bits, so it must not be shorter + * then the bits we are about to parse. Also the offset must not be + * greater then the length of the bits */ + if (bits_len > bits_map_len) + return -EINVAL; + if (bits_len - offs < 0) + return -EINVAL; + + /* Advance to the position where the data is stored */ + bits += offs; + bits_len -= offs; + bits_map += offs; + bits_map_len -= offs; + + do { + /* Do not exceed bits or bits_map */ + if (bit_count > bits_len) + return -EINVAL; + if (bit_count > bits_map_len) + return -EINVAL; + + /* Do not exceed output buffer */ + if (i > bits_len) + return -EINVAL; + + /* skip positions that have already bits set. */ + if (*bits_map == 0) { + *bits = *bits_in; + bits_in++; + i++; + } + + bit_count++; + bits++; + bits_map++; + + } while (i < len); + + return 0; +} + +/* Put an uint32 value to TRAU frame */ +static int put_trau_uint32(ubit_t *bits, size_t bits_len, + const ubit_t *bits_map, size_t bits_map_len, uint32_t value, size_t offs, size_t len) +{ + ubit_t buf[32]; + + OSMO_ASSERT(len < 32); + + memset(buf, 0, sizeof(buf)); + value = htonl(value); + osmo_pbit2ubit_ext(buf, 0, (ubit_t *) &value, 32 - len, len, 0); + return put_trau_data(bits, bits_len, bits_map, bits_map_len, buf, offs, len); +} + +/* Get data from TRAU frame, ignore T bits */ +static int get_trau_data(ubit_t *bits_out, size_t bits_out_len, + const ubit_t *bits, size_t bits_len, + const ubit_t *bits_map, size_t bits_map_len, size_t offs, size_t len) +{ + size_t bit_count = 0; + size_t i = 0; + + /* (see above) */ + if (bits_len > bits_map_len) + return -EINVAL; + if (bits_len - offs < 0) + return -EINVAL; + + /* Advance to the position where the data is located */ + bits += offs; + bits_map += offs; + bits_len -= offs; + bits_map_len -= offs; + + /* Extract bits from TRAU frame */ + do { + /* Do not exceed bits or bits_map */ + if (bit_count > bits_len) + return -EINVAL; + if (bit_count > bits_map_len) + return -EINVAL; + + /* Do not exceed output buffer */ + if (i > bits_out_len) + return -EINVAL; + + if (*bits_map == 0) { + *bits_out = *bits; + bits_out++; + i++; + } + + bit_count++; + bits++; + bits_map++; + + } while (i < len); + + return 0; +} + +/* Get an uint32 value from TRAU frame */ +static uint32_t get_trau_uint32(const ubit_t *bits, size_t bits_len, + const ubit_t *bits_map, size_t bits_map_len, size_t offs, uint8_t len) +{ + ubit_t buf[32]; + uint32_t result = 0; + int rc; + + OSMO_ASSERT(len < 32); + + memset(buf, 0, sizeof(buf)); + rc = get_trau_data(buf, sizeof(buf), bits, bits_len, bits_map, bits_map_len, offs, len); + + if (rc < 0) + return 0; + + osmo_ubit2pbit_ext((pbit_t *) &result, 32 - len, buf, 0, len, 0); + result = ntohl(result); + + return result; +} + +/* Set Time adjustment bits, add 4 more bits in case of delay */ +static int set_timing_ajustment_bits_16(ubit_t *trau_bits, enum time_adj_val tav) +{ + /* Note: This sets the tail bits and returns the final length of the final length of the TRAU frame. The caller + * must then make sure that the frame is transitted with the returned length to achieve correct timing + * alignment. */ + + switch (tav) { + case TIME_ADJ_NONE: + return 320; + case TIME_ADJ_DELAY_250us: + return 320 + 4; + case TIME_ADJ_ADVANCE_250us: + /* Note: the 16 removed bits are not transmitted. */ + return 320 - 4; + } + + return -EINVAL; +} + +/* Set Time adjustment bits, add 16 more bits in case of delay */ +static int set_timing_ajustment_bits_64(ubit_t *trau_bits, enum time_adj_val tav) +{ + /* (see comment above) */ + + switch (tav) { + case TIME_ADJ_NONE: + return 1280; + case TIME_ADJ_DELAY_250us: + return 1280 + 16; + case TIME_ADJ_ADVANCE_250us: + /* Note: the 16 removed bits are not transmitted. */ + return 1280 - 16; + } + + return -EINVAL; +} + +/* Decode an 8-byte access burst data structure */ +static int decode_ab(struct er_gprs_ab *ab, uint8_t *ab_bytes) +{ + memset(ab, 0, sizeof(*ab)); + + /* Type 1/2 specific fields */ + if ((ab_bytes[0] & 0x1f) == 0x1f) { + ab->ab_type = 1; + ab->u.type_1.crc = ab_bytes[0] >> 5 & 0x07; + ab->u.type_1.burst_qual = ab_bytes[2]; + ab->u.type_1.frame_qual = ab_bytes[3]; + } else if ((ab_bytes[0] & 0x1f) == 0) { + ab->ab_type = 2; + ab->u.type_2.abi = ab_bytes[0] >> 5 & 0x07; + ab->u.type_2.type = ab_bytes[3] >> 6 & 0x03; + } else + return -EINVAL; + + /* Common fields */ + ab->rxlev = ab_bytes[1]; + ab->acc_delay = (ab_bytes[4] << 2) & 0x0300; + ab->acc_delay |= ab_bytes[5]; + ab->data = (ab_bytes[6] << 3) & 0x0700; + ab->data |= ab_bytes[7]; + + return 0; +} + +static int enc_pcu_sync_ind_16(ubit_t *trau_bits, struct er_pcu_sync_ind *ind) +{ + /* 16kbps PCU-SYNC-IND TRAU frame format: + * Direction: PCU => CCU + * + * (bit 0) 0 0 0 0 0 0 0 0 + * 0 0 0 0 0 0 0 0 + * 1 C1 C2 C3 C4 C5 C6 C7 + * C8 PC 0. 0 0 0 0 0 + * 1 0 0 0 0 0 0 0 + * 0 D15 D16 D17 D18 D19 D20 D21 PSEQ (offset 41) + * 1 D22 D23 D24 D25 D26 D27 D28 + * D29 D30 D31 D32 D33 D34 D35 D36 + * 1 D37 D38 D39 D40 D41 D42 D43 SS (offset 65) + * D44 D45 D46 D47 D48 D49 D50 D51 + * 1 1 1 1 1 1 1 1 + * 1 D60 D61 D62 D63 D64 D65 D66 FN UL (offset 89) + * 1 D67 D68 D69 D70 D71 D72 D73 + * D74 D75 D76 D77 D78 D79 D80 D81 + * 1 D82 D83 D84 D85 D86 D87 D88 FN SS (offset 113) + * D89 D90 D91 D92 D93 D94 D95 D96 + * 1 1 1 1 1 1 1 1 + * 1 D105 D106 D107 D108 D109 D110 D111 FN DL (offset 137) + * 1 D112 D113 D114 D115 D116 D117 D118 + * D119 D120 D121 D122 D123 D124 D125 D126 + * 1 D127 D128 D129 D130 D131 D132 D133 LS (offset 161) + * D134 D135 D136 D137 D138 D139 D140 D141 + * 1 1 1 1 1 1 1 1 + * 1 1 1 ... + * ... 1 1 1 + * 1 1 1 1 1 1 1 1 + * 1 1 1 1 TA1 TA2 TA3 TA4 (bit 319) + * TA5* TA6* TA7* TA8* + * + * "*" = additional TA bits to delay the frame + * C = Control bits + * D = Data bits + * PC = Parity over C-Bits (odd) */ + + pbit_t c_1_5 = PCU_TRAU_ER_FT_PCU_SYNC_IND; + int rc; + + /* C-Bits */ + osmo_pbit2ubit_ext(trau_bits, 17, &c_1_5, 0, 5, 1); + osmo_pbit2ubit_ext(trau_bits, 22, (pbit_t *) &ind->tav, 0, 2, 1); + if (ind->ul_frame_err == false) + trau_bits[24] = 1; + trau_bits[25] = calc_parity(trau_bits + 17, 8); + + /* D-Bits */ + rc = put_trau_uint32(trau_bits, 320, T_bits_16, sizeof(T_bits_16), ind->pseq, 41, 22); + if (rc < 0) + return -EINVAL; + rc = put_trau_uint32(trau_bits, 320, T_bits_16, sizeof(T_bits_16), ind->ss, 65, 15); + if (rc < 0) + return -EINVAL; + rc = put_trau_uint32(trau_bits, 320, T_bits_16, sizeof(T_bits_16), ind->fn_ul, 89, 22); + if (rc < 0) + return -EINVAL; + rc = put_trau_uint32(trau_bits, 320, T_bits_16, sizeof(T_bits_16), ind->fn_ss, 113, 15); + if (rc < 0) + return -EINVAL; + rc = put_trau_uint32(trau_bits, 320, T_bits_16, sizeof(T_bits_16), ind->fn_dl, 137, 22); + if (rc < 0) + return -EINVAL; + rc = put_trau_uint32(trau_bits, 320, T_bits_16, sizeof(T_bits_16), ind->ls, 161, 15); + if (rc < 0) + return -EINVAL; + + return set_timing_ajustment_bits_16(trau_bits, ind->tav); +} + +int enc_pcu_data_ind_16(ubit_t *trau_bits, struct er_pcu_data_ind *ind) +{ + /* 16kbps PCU-DATA-IND TRAU frame format: + * Direction: PCU => CCU + * + * (bit 0) 0 0 0 0 0 0 0 0 + * 0 0 0 0 0 0 0 0 + * 1 C1 C2 C3 C4 C5 C6 C7 + * C8 PC E1 E2 E3 E4 E5 E6 + * E7 E8 E9 E10 E11 E12 E13 E14 + * E15 E16 PE D1 D2 D3 D4 D5 + * D6 D7 D8 D9 D10 D11 D12 D13 + * D14 D15 D16 ... + * ... D267 D268 D269 + * D270 D271 D272 D273 TA1 TA2 TA3 TA4 (bit 319) + * TA5* TA6* TA7* TA8* + * + * C = Control bits + * D = Data bits + * E = Extended control bits + * PC = Parity over C-Bits (odd) + * PE = Parity over extended control bits (odd) */ + + pbit_t c_1_5 = PCU_TRAU_ER_FT_DATA_IND; + + /* C-Bits */ + osmo_pbit2ubit_ext(trau_bits, 17, &c_1_5, 0, 5, 1); + osmo_pbit2ubit_ext(trau_bits, 22, (pbit_t *) &ind->tav, 0, 2, 1); + if (ind->ul_frame_err == false) + trau_bits[24] = 1; + trau_bits[25] = calc_parity(trau_bits + 17, 8); + + /* Set coding scheme (E1-E2) */ + switch (ind->cs_hdr) { + case CS_OR_HDR_CS1: + trau_bits[26] = 0; + trau_bits[27] = 0; + break; + case CS_OR_HDR_CS2: + trau_bits[26] = 0; + trau_bits[27] = 1; + break; + default: + /* NOTE: The 16K TRAU frames do not have enough bandwidth to + * support coding schemes other than CS1 and CS2 */ + /* NOTE: Access bursts (AB) are uplink-only. */ + return -EINVAL; + } + + /* Set demodulation in uplink (E3-E4) */ + switch (ind->ul_chan_mode) { + case ER_UL_CHMOD_NB_GMSK: + trau_bits[28] = 0; + trau_bits[29] = 0; + break; + case ER_UL_CHMOD_AB: + trau_bits[28] = 0; + trau_bits[29] = 1; + break; + case ER_UL_CHMOD_AB_UNKN: + trau_bits[28] = 1; + trau_bits[29] = 0; + break; + case ER_UL_CHMOD_VOID: + trau_bits[28] = 1; + trau_bits[29] = 1; + break; + default: + return -EINVAL; + } + + /* Timing offset (E5-E12, 8 bit value, MSB first) */ + osmo_pbit2ubit_ext(trau_bits, 30, (pbit_t *) &ind->timing_offset, 0, 8, 0); + + /* Power control (E13-E16, 4 bit value, MSB first, 2dB steps) */ + osmo_pbit2ubit_ext(trau_bits, 38, (pbit_t *) &ind->atten_db, 4, 4, 0); + + /* Parity (odd) over coding scheme, demodulation, timing offset and + * power control bits (E1-E16) */ + trau_bits[42] = calc_parity(trau_bits + 26, 16); + + /* Data bits */ + switch (ind->cs_hdr) { + case CS_OR_HDR_CS1: + osmo_pbit2ubit_ext(trau_bits, 43, (pbit_t *) ind->data, 0, 184, 1); + osmo_crc16gen_set_bits(&cs1_crc16, trau_bits + 43, 184, trau_bits + 43 + 184); + break; + case CS_OR_HDR_CS2: + osmo_pbit2ubit_ext(trau_bits, 43, (pbit_t *) ind->data, 0, 271, 1); + break; + default: + /* NOTE: The 16K TRAU frames do not have enough bandwidth to + * support coding schemes other than CS1 and CS2 */ + return -EINVAL; + } + + return set_timing_ajustment_bits_16(trau_bits, ind->tav); +} + +/*! encode an 16k Ericsson GPRS (GSL) TRAU frame. + * \param[out] bits caller-allocated memory for unpacked output bits (320+4). + * \param[in] fr input data structure describing TRAU frame. + * \return number of bits encoded. */ +int er_gprs_trau_frame_encode_16k(ubit_t *bits, struct er_gprs_trau_frame *fr) +{ + /* Prepare frame: first 16 bits set 0, remaining bits set to 1 */ + memset(bits, 0, 16); + memset(bits + 16, 1, 320 + 4 - 16); + + switch (fr->type) { + case ER_GPRS_TRAU_FT_SYNC: + return enc_pcu_sync_ind_16(bits, &fr->u.pcu_sync_ind); + case ER_GPRS_TRAU_FT_DATA: + return enc_pcu_data_ind_16(bits, &fr->u.pcu_data_ind); + default: + return -EINVAL; + } + + return -EINVAL; +} + +static int dec_ccu_sync_ind_16(struct er_ccu_sync_ind *ind, const ubit_t *trau_bits) +{ + /* 16kbps CCU-SYNC-IND TRAU frame format: + * Direction: CCU => PCU + * + * (bit 0) 0 0 0 0 0 0 0 0 + * 0 0 0 0 0 0 0 0 + * 1 C1 C2 C3 C4 C5 C6 C7 + * C8 PC E1 PE 1 1 1 1 + * 1 0 0 0 0 0 0 0 + * 0 D13 D14 D15 D16 D17 D18 D19 PSEQ (offset 41) + * 1 D20 D21 D22 D23 D24 D25 D26 + * D27 D28 D29 D30 D31 D32 D33 D34 + * 1 1 1 1 1 1 1 1 + * 1 1 1 1 1 1 1 1 + * 1 1 1 1 1 1 1 1 + * 1 D58 D59 D60 D61 D62 D63 D64 AFN UL (offset 89) + * 1 D65 D66 D67 D68 D69 D70 D71 + * D72 D73 D74 D75 D76 D77 D78 D79 + * 1 1 1 1 1 1 1 1 + * 1 1 1 1 1 1 1 1 + * 1 1 1 1 1 1 1 1 + * 1 D103 D104 D105 D106 D107 D108 D109 AFN DL (offset 137) + * 1 D110 D111 D112 D113 D114 D115 D116 + * D117 D118 D119 D120 D121 D122 D123 D124 + * 1 1 1 1 1 1 1 1 + * 1 1 1 ... + * ... 1 1 1 + * 1 1 1 1 1 1 1 1 + * 1 1 1 1 1 1 TA1 TA2 (bit 319) + * TA3* TA4* + * + * "*" = additional TA bits to delay the frame + * C = Control bits + * D = Data bits + * E = Extended control bits + * PC = Parity over C-Bits (odd) + * PE = Parity over extended control bits (odd) */ + + size_t i; + + /* Validate sync pattern (extended) */ + for (i = 0; i < 19; i++) { + if (trau_bits[16 + i * 16] != 1) { + LOGP(DLINP, LOGL_ERROR, "CCU-SYNC-IND-16: invalid sync pattern (T1 at position %zu != 1)\n", i); + return -EINVAL; + } + } + + /* Validate C-Bits */ + if (calc_parity(trau_bits + 17, 8) != trau_bits[25]) { + LOGP(DLINP, LOGL_ERROR, "CCU-SYNC-IND-16: invalid parity (C1-C8)\n"); + return -EINVAL; + } + + /* TAV (C7-C9) */ + osmo_ubit2pbit_ext((pbit_t *) &ind->tav, 0, trau_bits, 22, 2, 1); + + /* Downlink frame error, DFE (C8) */ + if (trau_bits[24] == 0) + ind->dfe = true; + + /* Check (odd) parity of E1 bit */ + if (trau_bits[26] != ((~trau_bits[27]) & 1)) { + LOGP(DLINP, LOGL_ERROR, "CCU-SYNC-IND-16: invalid parity (E1)\n"); + return -EINVAL; + } + + /* Downlink Block error, DBE (E1) */ + if (trau_bits[26] == 0) + ind->dbe = true; + + /* D bits */ + ind->pseq = get_trau_uint32(trau_bits, 320, T_bits_16, sizeof(T_bits_16), 41, 22); + ind->afn_ul = get_trau_uint32(trau_bits, 320, T_bits_16, sizeof(T_bits_16), 89, 22); + ind->afn_dl = get_trau_uint32(trau_bits, 320, T_bits_16, sizeof(T_bits_16), 137, 22); + + return 0; +} + +static int dec_ccu_data_ind_16(struct er_ccu_data_ind *ind, const ubit_t *trau_bits) +{ + /* 16kbps CCU-DATA-IND TRAU frame format: + * Direction: CCU => PCU + * + * (bit 0) 0 0 0 0 0 0 0 0 + * 0 0 0 0 0 0 0 0 + * 1 C1 C2 C3 C4 C5 C6 C7 + * PC E1 E2 E3 E4 E5 E6 E7 + * E8 E9 E10 E11 E12 E13 E14 E15 + * E16 E17 E18 E19 PE D1 D2 D3 + * D4 D5 D6 D7 D8 D9 D10 D11 + * D12 D13 D14 ... + * ... D267 D268 D269 + * D270 D271 D272 D273 TA1 TA2 TA3 TA4 (bit 319) + * TA5* TA6* TA7* TA8* + * + * C = Control bits + * D = Data bits + * E = Extended control bits + * PC = Parity over C-Bits (odd) + * PE = Parity over extended control bits (odd) */ + + uint8_t sfq = 0; + uint8_t eadd = 0; + uint8_t e_2_4 = 0; + int rc; + int i; + + /* Validate C-Bits */ + if (calc_parity(trau_bits + 17, 7) != trau_bits[24]) { + LOGP(DLINP, LOGL_ERROR, "CCU-DATA-IND-16: invalid parity (C1-C7)\n"); + return -EINVAL; + } + + /* TAV (C6-C7) */ + osmo_ubit2pbit_ext((pbit_t *) &ind->tav, 0, trau_bits, 22, 2, 1); + + /* Validate E-Bits */ + if (calc_parity(trau_bits + 25, 19) != trau_bits[44]) { + LOGP(DLINP, LOGL_ERROR, "CCU-DATA-IND-16: invalid parity (E1-E19)\n"); + return -EINVAL; + } + + /* Downlink block error (E1) */ + if (trau_bits[25] == 0) + ind->dbe = true; + + /* Coding scheme (E2-E4) */ + osmo_ubit2pbit_ext((pbit_t *) &e_2_4, 5, trau_bits, 26, 3, 0); + switch (e_2_4) { + case 0: + ind->cs_hdr = CS_OR_HDR_CS1; + break; + case 1: + ind->cs_hdr = CS_OR_HDR_CS2; + break; + case 4: + ind->cs_hdr = CS_OR_HDR_AB; + break; + default: + /* 16kbps timeslots only support CS1, CS2 and AB are supported, + * due to bandwidth limitations. */ + LOGP(DLINP, LOGL_ERROR, "CCU-DATA-IND-16: invalid codec status (E2-E4)\n"); + return -EINVAL; + } + + /* Soft frame quality SFQ (E5-E7, 0 in case of AB) */ + osmo_ubit2pbit_ext((pbit_t *) &sfq, 5, trau_bits, 29, 3, 0); + ind->u.gprs.block_qual = sfq; + + /* Parity Check (E8, 1 in case of AB) */ + ind->u.gprs.parity_ok = trau_bits[32]; + + /* RX-LEV (E9-E14, 63 in case of AB) */ + osmo_ubit2pbit_ext((pbit_t *) &ind->rx_lev, 2, trau_bits, 33, 6, 0); + + /* Estimated access delay (E15-E17, 0 in case of AB) */ + osmo_ubit2pbit_ext((pbit_t *) &eadd, 5, trau_bits, 39, 3, 0); + switch (eadd) { + case 0: + /* <2 or less */ + ind->est_acc_del_dev = -3; + break; + case 1: + ind->est_acc_del_dev = -1; + break; + case 2: + ind->est_acc_del_dev = 1; + break; + case 4: + ind->est_acc_del_dev = 2; + break; + case 5: + /* >2 or more */ + ind->est_acc_del_dev = 3; + break; + case 6: + ind->est_acc_del_dev = 0; + break; + case 7: + ind->est_acc_del_dev = -2; + break; + default: + LOGP(DLINP, LOGL_ERROR, "CCU-DATA-IND-16: invalid estimated access delay (E15-E17)\n"); + return -EINVAL; + } + + /* Data bits */ + switch (ind->cs_hdr) { + case CS_OR_HDR_CS1: + osmo_ubit2pbit_ext((pbit_t *) &ind->data, 0, trau_bits, 45, 184, 1); + rc = osmo_crc16gen_check_bits(&cs1_crc16, trau_bits + 45, 184, trau_bits + 45 + 184); + if (rc != 0) { + LOGP(DLINP, LOGL_ERROR, "CCU-DATA-IND-16: CRC error in CS1 block\n"); + return -EINVAL; + } + ind->data_len = 23; + break; + case CS_OR_HDR_CS2: + osmo_ubit2pbit_ext((pbit_t *) &ind->data, 0, trau_bits, 45, 271, 1); + ind->data_len = 34; + break; + case CS_OR_HDR_AB: + /* Note: The useful data starts at D4 and is byte-aligned inside the TRAU frame. + * The data string contains 4 items, each 8 bytes long, 32 bytes total. */ + osmo_ubit2pbit_ext((pbit_t *) &ind->data, 0, trau_bits, 48, 256, 1); + ind->data_len = 32; + + for (i = 0; i < 4; i++) { + rc = decode_ab(&ind->ab[i], ind->data + i * 8); + if (rc < 0) + return -EINVAL; + } + break; + default: + LOGP(DLINP, LOGL_ERROR, "CCU-DATA-IND-16: invalid cs_hdr set\n"); + return -EINVAL; + } + + return 0; +}; + +/*! decode an 16k Ericsson GPRS (GSL) TRAU frame. + * \param[out] fr caller-allocated output data structure. + * \param[in] bits unpacked input bits (320). + * \return 0 on success; negative in case of error. */ +int er_gprs_trau_frame_decode_16k(struct er_gprs_trau_frame *fr, const ubit_t *bits) +{ + uint8_t c_1_5 = 0; + const ubit_t expected_sync_pattern[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1 }; + int rc; + + memset(fr, 0, sizeof(*fr)); + + /* Validate sync pattern */ + if (memcmp(bits, expected_sync_pattern, ARRAY_SIZE(expected_sync_pattern)) != 0) { + LOGP(DLINP, LOGL_ERROR, "CCU-XXXX-IND-16: invalid sync pattern (T0)\n"); + return -EINVAL; + } + + /* Determine frame type */ + osmo_ubit2pbit_ext((pbit_t *) &c_1_5, 0, bits, 17, 5, 1); + + switch (c_1_5) { + case PCU_TRAU_ER_FT_CCU_SYNC_IND: + fr->type = ER_GPRS_TRAU_FT_SYNC; + rc = dec_ccu_sync_ind_16(&fr->u.ccu_sync_ind, bits); + break; + case PCU_TRAU_ER_FT_DATA_IND: + fr->type = ER_GPRS_TRAU_FT_DATA; + rc = dec_ccu_data_ind_16(&fr->u.ccu_data_ind, bits); + break; + default: + LOGP(DLINP, LOGL_ERROR, "CCU-XXXX-IND-16: invalid frame type (%02x)\n", c_1_5); + rc = -EINVAL; + } + + /* Ensure that we exit with predictable data in case of error. */ + if (rc < 0) + memset(fr, 0, sizeof(*fr)); + + return rc; +} + +/* Extract the CPS field from a given block, block must have minimum length of 5 bytes. + * See also: 3GPP TS 44.060, section 10.3a.3 and section 10.3a.4 */ +static int cps_from_mcs_block(uint8_t *block, enum er_cs_or_hdr cs_hdr, bool uplink) +{ + uint8_t cps; + + if (uplink) { + switch (cs_hdr) { + case CS_OR_HDR_HDR1: + cps = block[4] & 0x1f; + break; + case CS_OR_HDR_HDR2: + cps = (block[2] >> 6) & 0x3; + cps |= block[3] << 2 & 0x4; + break; + case CS_OR_HDR_HDR3: + cps = (block[2] >> 6) & 0x3; + cps |= block[3] << 2 & 0xC; + break; + default: + return -EINVAL; + } + } else { + switch (cs_hdr) { + case CS_OR_HDR_HDR1: + cps = (block[4] >> 3) & 0x1f; + break; + case CS_OR_HDR_HDR2: + cps = (block[3] >> 1) & 0x07; + break; + case CS_OR_HDR_HDR3: + cps = (block[3] >> 1) & 0x0f; + break; + default: + return -EINVAL; + } + } + + return cps; +} + +/* Determine the MCS block type from a given CPS value. + * See also: 3GPP TS 44.060, section 10.4.8a */ +static int mcs_from_cps(uint8_t cps, enum er_cs_or_hdr cs_hdr) +{ + switch (cs_hdr) { + case CS_OR_HDR_HDR1: + if (cps <= 0x0A) + return 9; + if (cps <= 0x13) + return 8; + if (cps <= 0x1C) + return 7; + return -EINVAL; + break; + case CS_OR_HDR_HDR2: + if (cps <= 0x03 || cps == 0x06 || cps == 0x07) + return 6; + if (cps == 4 || cps == 5) + return 5; + return -EINVAL; + break; + case CS_OR_HDR_HDR3: + if (cps <= 0x02) + return 4; + if (cps <= 0x08) + return 3; + if (cps == 0x09 || cps == 0x0A || cps == 0x0D || cps == 0x0E) + return 2; + if (cps == 0x0B || cps == 0x0C) + return 1; + return -EINVAL; + break; + default: + return -EINVAL; + } +} + +static int enc_pcu_sync_ind_64(ubit_t *trau_bits, struct er_pcu_sync_ind *ind) +{ + /* 64kbps PCU-SYNC-IND TRAU frame format: + * Direction: PCU => CCU + * + * (bit 0) 0 0 0 0 0 0 0 0 + * 0 0 0 0 0 0 0 0 + * 0 0 0 0 0 0 0 0 + * 0 0 0 0 0 0 0 0 + * 0 0 0 0 0 0 0 0 + * 0 0 0 0 0 0 0 0 + * 0 0 0 0 0 0 0 0 + * 0 0 0 0 0 0 0 0 + * 1 C1 C2 C3 C4 C5 C6 C7 + * C8 PC 1 1 1 1 1 1 + * 1 1 1 1 1 1 1 1 + * 1 1 1 1 1 1 1 1 + * 1 1 1 1 1 1 1 1 + * 1 1 1 1 1 1 1 1 + * 1 1 1 1 1 1 1 1 + * 1 1 1 1 1 1 1 1 + * 1 1 1 1 1 1 1 1 + * 1 1 1 1 1 1 1 1 + * 1 1 1 1 1 1 1 1 + * 1 1 1 1 1 1 1 1 + * 1 1 1 1 1 1 1 1 + * 1 1 D96 D97 D98 D99 D100 D101 + * D102 D103 D104 D105 D106 D107 D108 D109 + * D110 D111 D112 D113 D114 D115 D116 D117 + * 1 1 1 1 1 1 1 1 + * 1 1 1 1 1 1 1 1 + * D133 D134 D135 D136 D137 D138 D139 D140 + * D141 D142 D143 D144 D145 D146 D147 D148 + * 1 1 1 1 1 1 1 1 + * 1 1 D159 D160 D161 D162 D163 D164 + * D165 D166 D167 D168 D169 D170 D171 D172 + * D173 D174 D175 D176 D177 D178 D179 D180 + * 1 1 1 1 1 1 1 1 + * 1 1 1 1 1 1 1 1 + * D196 D197 D198 D199 D200 D201 D202 D203 + * D204 D205 D206 D207 D208 D209 D210 D211 + * 1 1 1 1 1 1 1 1 + * 1 1 D222 D223 D224 D225 D226 D227 + * D228 D229 D230 D231 D232 D233 D234 D235 + * D236 D237 D238 D239 D340 D241 D242 D243 + * 1 1 1 1 1 1 1 1 + * 1 1 1 1 1 1 1 1 + * D259 D260 D261 D262 D263 D264 D265 D266 + * D267 D268 D269 D270 D271 D272 D273 D274 + * 1 1 1 1 1 1 1 1 + * 1 1 1 ... + * ... 1 1 1 + * 1 1 1 1 1 1 1 1 + * TA1 TA2 TA3 TA4 TA5 TA6 TA7 TA8 + * TA9 TA10 TA11 TA12 TA13 TA14 TA15 TA16 (bit 1279) + * TA17* TA18* TA19* TA20* TA21* TA22* TA23* TA24* + * TA25* TA26* TA27* TA28* TA29* TA30* TA31* TA32* + * + * "*" = additional TA bits to delay the frame + * C = Control bits + * D = Data bits + * E = Extended control bits + * PC = Parity over C-Bits (odd) + * PE = Parity over extended control bits (odd) */ + + pbit_t c_1_5 = PCU_TRAU_ER_FT_PCU_SYNC_IND; + int rc; + + /* C-Bits */ + osmo_pbit2ubit_ext(trau_bits, 65, &c_1_5, 0, 5, 1); + osmo_pbit2ubit_ext(trau_bits, 70, (pbit_t *) &ind->tav, 0, 2, 1); + if (ind->ul_frame_err == false) + trau_bits[73] = 1; + trau_bits[74] = calc_parity(trau_bits + 65, 8); + + /* Set unused D-Bits to 1 */ + memset(trau_bits + 76, 1, 1280 - 76 - 16); + + /* D-Bits */ + rc = put_trau_uint32(trau_bits, 1280, T_bits_64, sizeof(T_bits_64), ind->pseq, 170, 22); + if (rc < 0) + return -EINVAL; + rc = put_trau_uint32(trau_bits, 1280, T_bits_64, sizeof(T_bits_64), ind->ss, 208, 16); + if (rc < 0) + return -EINVAL; + rc = put_trau_uint32(trau_bits, 1280, T_bits_64, sizeof(T_bits_64), ind->fn_ul, 234, 22); + if (rc < 0) + return -EINVAL; + rc = put_trau_uint32(trau_bits, 1280, T_bits_64, sizeof(T_bits_64), ind->fn_ss, 272, 15); + if (rc < 0) + return -EINVAL; + rc = put_trau_uint32(trau_bits, 1280, T_bits_64, sizeof(T_bits_64), ind->fn_dl, 298, 22); + if (rc < 0) + return -EINVAL; + rc = put_trau_uint32(trau_bits, 1280, T_bits_64, sizeof(T_bits_64), ind->ls, 336, 16); + if (rc < 0) + return -EINVAL; + + return set_timing_ajustment_bits_64(trau_bits, ind->tav); +} + +int enc_pcu_data_ind_64(ubit_t *trau_bits, struct er_pcu_data_ind *ind, uint8_t mcs) +{ + /* 64kbps PCU-DATA-IND TRAU frame format: + * Direction: PCU => CCU + * + * (bit 0) 0 0 0 0 0 0 0 0 + * 0 0 0 0 0 0 0 0 + * 0 0 0 0 0 0 0 0 + * 0 0 0 0 0 0 0 0 + * 0 0 0 0 0 0 0 0 + * 0 0 0 0 0 0 0 0 + * 0 0 0 0 0 0 0 0 + * 0 0 0 0 0 0 0 0 + * 1 C1 C2 C3 C4 C5 C6 C7 + * C8 PC E1 E2 E3 E4 E5 E6 + * E7 E8 E9 E10 E11 E12 E13 E14 + * E15 E16 E17 E18 E19 E20 E21 E22 + * E23 E24 E25 E26 E27 E28 E29 E30 + * E31 E32 E33 E34 E35 E36 PE S1 + * S2 S3 S4 S5 S6 S7 S8 S9 + * S10 S11 S12 S13 S14 S15 S16 S17 + * S18 S19 S20 S21 D1 D2 D3 D4 + * D5 D6 D7 D8 D9 D10 D11 D12 + * D13 D14 D15 D16 D17 D18 D19 D20 + * D21 D22 D23 ... + * ... D1130 D1131 D1132 + * TA1 TA2 TA3 TA4 TA5 TA6 TA7 TA8 + * TA9 TA10 TA11 TA12 TA13 TA14 TA15 TA16 (bit 1279) + * TA17* TA18* TA19* TA20* TA21* TA22* TA23* TA24* + * TA25* TA26* TA27* TA28* TA29* TA30* TA31* TA32* + * + * C = Control bits + * D = Data bits + * E = Extended control bits + * PC = Parity over C-Bits (odd) + * PE = Parity over extended control bits (odd) */ + + pbit_t c_1_5 = PCU_TRAU_ER_FT_DATA_IND; + + /* C-Bits */ + osmo_pbit2ubit_ext(trau_bits, 65, &c_1_5, 0, 5, 1); + osmo_pbit2ubit_ext(trau_bits, 70, (pbit_t *) &ind->tav, 0, 2, 1); + if (ind->ul_frame_err == false) + trau_bits[73] = 1; + trau_bits[74] = calc_parity(trau_bits + 65, 8); + + /* Set coding scheme (E1-E3) */ + switch (ind->cs_hdr) { + case CS_OR_HDR_CS1: + trau_bits[74] = 0; + trau_bits[75] = 0; + trau_bits[76] = 1; + break; + case CS_OR_HDR_CS2: + trau_bits[74] = 0; + trau_bits[75] = 1; + trau_bits[76] = 0; + break; + case CS_OR_HDR_CS3: + trau_bits[74] = 0; + trau_bits[75] = 1; + trau_bits[76] = 1; + break; + case CS_OR_HDR_CS4: + trau_bits[74] = 1; + trau_bits[75] = 0; + trau_bits[76] = 0; + break; + case CS_OR_HDR_HDR1: + trau_bits[74] = 1; + trau_bits[75] = 0; + trau_bits[76] = 1; + break; + case CS_OR_HDR_HDR2: + trau_bits[74] = 1; + trau_bits[75] = 1; + trau_bits[76] = 0; + break; + case CS_OR_HDR_HDR3: + trau_bits[74] = 1; + trau_bits[75] = 1; + trau_bits[76] = 1; + break; + default: + /* NOTE: Access bursts (AB) are uplink-only. */ + return -EINVAL; + } + + /* Set demodulation in uplink (E4-E6) */ + switch (ind->ul_chan_mode) { + case ER_UL_CHMOD_VOID: + trau_bits[77] = 0; + trau_bits[78] = 0; + trau_bits[79] = 0; + break; + case ER_UL_CHMOD_NB_GMSK: + trau_bits[77] = 0; + trau_bits[78] = 0; + trau_bits[79] = 1; + break; + case ER_UL_CHMOD_NB_UNKN: + trau_bits[77] = 0; + trau_bits[78] = 1; + trau_bits[79] = 0; + break; + case ER_UL_CHMOD_AB: + trau_bits[77] = 0; + trau_bits[78] = 1; + trau_bits[79] = 1; + break; + case ER_UL_CHMOD_AB_UNKN: + trau_bits[77] = 1; + trau_bits[78] = 0; + trau_bits[79] = 0; + break; + default: + return -EINVAL; + } + + /* Timing offset (E7-E14, 8 bit value, MSB first) */ + osmo_pbit2ubit_ext(trau_bits, 80, (pbit_t *) &ind->timing_offset, 0, 8, 0); + + /* Power control (E33-E36, 4 bit value, MSB first, 2dB steps) */ + osmo_pbit2ubit_ext(trau_bits, 106, (pbit_t *) &ind->atten_db, 4, 4, 0); + + /* Parity (odd) over coding scheme, demodulation, timing offset and + * power control bits (E1-E36) */ + trau_bits[110] = calc_parity(trau_bits + 74, 36); + + /* Data bits */ + switch (ind->cs_hdr) { + case CS_OR_HDR_CS1: + osmo_pbit2ubit_ext(trau_bits, 132, (pbit_t *) ind->data, 0, 184, 1); + osmo_crc16gen_set_bits(&cs1_crc16, trau_bits + 132, 184, trau_bits + 132 + 184); + break; + case CS_OR_HDR_CS2: + osmo_pbit2ubit_ext(trau_bits, 132, (pbit_t *) ind->data, 0, 271, 1); + break; + case CS_OR_HDR_CS3: + osmo_pbit2ubit_ext(trau_bits, 132, (pbit_t *) ind->data, 0, 315, 1); + break; + case CS_OR_HDR_CS4: + osmo_pbit2ubit_ext(trau_bits, 132, (pbit_t *) ind->data, 0, 431, 1); + break; + case CS_OR_HDR_HDR1: + case CS_OR_HDR_HDR2: + case CS_OR_HDR_HDR3: + switch (mcs) { + case 1: + osmo_pbit2ubit_ext(trau_bits, 132, (pbit_t *) ind->data, 0, 209, 1); + break; + case 2: + osmo_pbit2ubit_ext(trau_bits, 132, (pbit_t *) ind->data, 0, 257, 1); + break; + case 3: + osmo_pbit2ubit_ext(trau_bits, 132, (pbit_t *) ind->data, 0, 329, 1); + break; + case 4: + osmo_pbit2ubit_ext(trau_bits, 132, (pbit_t *) ind->data, 0, 385, 1); + break; + case 5: + osmo_pbit2ubit_ext(trau_bits, 132, (pbit_t *) ind->data, 0, 478, 1); + break; + case 6: + osmo_pbit2ubit_ext(trau_bits, 132, (pbit_t *) ind->data, 0, 622, 1); + break; + case 7: + osmo_pbit2ubit_ext(trau_bits, 132, (pbit_t *) ind->data, 0, 940, 1); + break; + case 8: + osmo_pbit2ubit_ext(trau_bits, 132, (pbit_t *) ind->data, 0, 1132, 1); + break; + } + break; + default: + /* NOTE: The 16K TRAU frames do not have enough bandwidth to + * support coding schemes other than CS1 and CS2 */ + return -EINVAL; + } + + return set_timing_ajustment_bits_64(trau_bits, ind->tav); +} + +int enc_pcu_data_ind_64_mcs9(ubit_t *trau_bits, struct er_pcu_data_ind *ind) +{ + /* 64kbps PCU-DATA-IND (MCS9) TRAU frame format: + * Direction: PCU => CCU + * + * (bit 0) 0 0 0 0 0 0 0 0 + * 0 0 0 0 0 0 0 0 + * 1 D1 D2 D3 D4 D5 D6 D7 + * D8 D9 D10 D11 D12 D13 D14 D15 + * D16 D17 D18 D19 D20 D21 D22 D23 + * D24 D25 D26 D27 D28 D29 D30 D31 + * D32 D33 D34 D35 D36 D37 D38 D39 + * D40 D41 D42 D43 D44 D45 D46 D47 + * D48 C1 C2 C3 C4 C5 C6 C7 + * C8 PC E1 E2 E3 E4 E5 E6 + * E7 E8 E9 PE D49 D50 D51 D52 + * D53 D54 D55 D56 D57 D58 D59 D60 + * D61 D62 D63 D64 D65 D66 D67 D68 + * D69 D70 D71 ... + * ... D1226 D1227 D1228 + * TA1 TA2 TA3 TA4 TA5 TA6 TA7 TA8 + * TA9 TA10 TA11 TA12 TA13 TA14 TA15 TA16 (bit 1279) + * TA17* TA18* TA19* TA20* TA21* TA22* TA23* TA24* + * TA25* TA26* TA27* TA28* TA29* TA30* TA31* TA32* + * + * C = Control bits + * D = Data bits + * E = Extended control bits + * PC = Parity over C-Bits (odd) + * PE = Parity over extended control bits (odd) */ + + pbit_t c_1_5 = PCU_TRAU_ER_FT_DATA9_IND; + + /* NOTE: The ericsson MCS9 64K TRAU format uses a different sync + * pattern than the other 64K TRAU frame formats. To make room for + * the additional bits in MCS9 only the first 16 bits are T0 bits. */ + trau_bits[16] = 1; + + /* Fill headroom that normally would have T0 and T1 bits with data + * bits */ + osmo_pbit2ubit_ext(trau_bits, 17, (pbit_t *) ind->data, 0, 48, 1); + + /* C-Bits */ + osmo_pbit2ubit_ext(trau_bits, 65, &c_1_5, 0, 5, 1); + osmo_pbit2ubit_ext(trau_bits, 70, (pbit_t *) &ind->tav, 0, 2, 1); + if (ind->ul_frame_err == false) + trau_bits[73] = 1; + trau_bits[74] = calc_parity(trau_bits + 65, 8); + + /* Set demodulation in uplink (E1-E3) */ + switch (ind->ul_chan_mode) { + case ER_UL_CHMOD_VOID: + trau_bits[74] = 0; + trau_bits[75] = 0; + trau_bits[76] = 0; + break; + case ER_UL_CHMOD_NB_GMSK: + trau_bits[74] = 0; + trau_bits[75] = 0; + trau_bits[76] = 1; + break; + case ER_UL_CHMOD_NB_UNKN: + trau_bits[74] = 0; + trau_bits[75] = 1; + trau_bits[76] = 0; + break; + case ER_UL_CHMOD_AB: + trau_bits[74] = 0; + trau_bits[75] = 1; + trau_bits[76] = 1; + break; + case ER_UL_CHMOD_AB_UNKN: + trau_bits[74] = 1; + trau_bits[75] = 0; + trau_bits[76] = 0; + break; + default: + return -EINVAL; + } + + /* E4-E5 are spare bits? */ + + /* Power control (E6-E9, 4 bit value, MSB first, 2dB steps) */ + osmo_pbit2ubit_ext(trau_bits, 79, (pbit_t *) &ind->atten_db, 4, 4, 0); + + /* Parity (odd) over coding scheme, demodulation, timing offset and + * power control bits (E1-E9) */ + trau_bits[83] = calc_parity(trau_bits + 74, 9); + + /* Fill the rest of the block with data bits */ + osmo_pbit2ubit_ext(trau_bits, 84, (pbit_t *) ind->data + 6, 0, 1180, 1); + + return set_timing_ajustment_bits_64(trau_bits, ind->tav); +} + +/*! encode an 64k Ericsson GPRS (GSL) TRAU frame. + * \param[out] bits caller-allocated memory for unpacked output bits (1280+16). + * \param[in] fr input data structure describing TRAU frame. + * \return number of bits encoded. */ +int er_gprs_trau_frame_encode_64k(ubit_t *bits, struct er_gprs_trau_frame *fr) +{ + int cps; + int mcs = 0; + enum er_cs_or_hdr cs; + + /* Prepare frame: first 16 bits set 0, remaining bits set to 1 */ + memset(bits, 0, 64); + memset(bits + 64, 1, 1280 + 16 - 64); + + switch (fr->type) { + case ER_GPRS_TRAU_FT_SYNC: + return enc_pcu_sync_ind_64(bits, &fr->u.pcu_sync_ind); + case ER_GPRS_TRAU_FT_DATA: + cs = fr->u.pcu_data_ind.cs_hdr; + if (cs == CS_OR_HDR_HDR1 || cs == CS_OR_HDR_HDR2 || cs == CS_OR_HDR_HDR3) { + cps = cps_from_mcs_block(fr->u.pcu_data_ind.data, cs, false); + if (cps < 0) + return -EINVAL; + mcs = mcs_from_cps((uint8_t) cps, cs); + if (mcs < 0) + return -EINVAL; + } + + if (mcs < 9) + return enc_pcu_data_ind_64(bits, &fr->u.pcu_data_ind, mcs); + else + return enc_pcu_data_ind_64_mcs9(bits, &fr->u.pcu_data_ind); + default: + return -EINVAL; + } + + return -EINVAL; +} + +static int dec_ccu_sync_ind_64(struct er_ccu_sync_ind *ind, const ubit_t *trau_bits) +{ + /* 64kbps CCU-SYNC-IND TRAU frame format: + * Direction: CCU => PCU + * + * (bit 0) 0 0 0 0 0 0 0 0 + * 0 0 0 0 0 0 0 0 + * 0 0 0 0 0 0 0 0 + * 0 0 0 0 0 0 0 0 + * 0 0 0 0 0 0 0 0 + * 0 0 0 0 0 0 0 0 + * 0 0 0 0 0 0 0 0 + * 0 0 0 0 0 0 0 0 + * 1 C1 C2 C3 C4 C5 C6 C7 + * C8 PC E1 PE 1 1 1 1 + * 1 1 1 1 1 1 1 1 + * 1 1 1 1 1 1 1 1 + * 1 1 1 1 1 1 1 1 + * 1 1 1 1 1 1 1 1 + * 1 1 1 1 1 1 1 1 + * 1 1 1 1 1 1 1 1 + * 1 1 1 1 1 1 1 1 + * 1 1 1 1 1 1 1 1 + * 1 1 1 1 1 1 1 1 + * 1 1 1 1 1 1 1 1 + * 1 1 1 1 1 1 1 1 + * 1 1 D94 D95 D96 D97 D98 D99 + * D100 D101 D102 D103 D104 D105 D106 D107 + * D108 D109 D110 D111 D112 D113 D114 D115 + * 1 1 1 1 1 1 1 1 + * 1 1 1 1 1 1 1 1 + * 1 1 1 1 1 1 1 1 + * 1 1 1 1 1 1 1 1 + * 1 1 1 1 1 1 1 1 + * 1 1 D157 D158 D159 D160 D161 D162 + * D163 D164 D165 D166 D167 D168 D169 D170 + * D171 D172 D173 D174 D175 D176 D177 D178 + * 1 1 1 1 1 1 1 1 + * 1 1 1 1 1 1 1 1 + * 1 1 1 1 1 1 1 1 + * 1 1 1 1 1 1 1 1 + * 1 1 1 1 1 1 1 1 + * 1 1 D220 D221 D222 D223 D224 D225 + * D226 D227 D228 D229 D230 D231 D232 D233 + * D234 D235 D236 D237 D238 D239 D240 D241 + * 1 1 1 1 1 1 1 1 + * 1 1 1 ... + * ... 1 1 1 + * 1 1 1 1 1 1 1 1 + * TA1 TA2 TA3 TA4 TA5 TA6 TA7 TA8 + * TA9 TA10 TA11 TA12 TA13 TA14 TA15 TA16 (bit 1279) + * TA17* TA18* TA19* TA20* TA21* TA22* TA23* TA24* + * TA25* TA26* TA27* TA28* TA29* TA30* TA31* TA32* + * + * "*" = additional TA bits to delay the frame + * C = Control bits + * D = Data bits + * E = Extended control bits + * PC = Parity over C-Bits (odd) + * PE = Parity over extended control bits (odd) */ + + size_t i; + + /* Validate sync pattern (extended) */ + for (i = 0; i < 19; i++) { + if (trau_bits[64 + i * 64] != 1) { + LOGP(DLINP, LOGL_ERROR, "CCU-SYNC-IND-64: invalid sync pattern (T1 at position %zu != 1)\n", i); + return -EINVAL; + } + } + + /* Validate C-Bits */ + if (calc_parity(trau_bits + 65, 8) != trau_bits[73]) { + LOGP(DLINP, LOGL_ERROR, "CCU-SYNC-IND-64: invalid parity (C1-C8)\n"); + return -EINVAL; + } + + /* TAV (C6-C7) */ + osmo_ubit2pbit_ext((pbit_t *) &ind->tav, 0, trau_bits, 70, 2, 1); + + /* Downlink frame error, DFE (C8) */ + if (trau_bits[72] == 0) + ind->dfe = true; + + /* Check (odd) parity of E1 bit */ + if (trau_bits[74] != ((~trau_bits[75]) & 1)) { + LOGP(DLINP, LOGL_ERROR, "CCU-SYNC-IND-64: invalid parity (E1)\n"); + return -EINVAL; + } + + /* Downlink Block error, DBE (E1) */ + if (trau_bits[74] == 0) + ind->dbe = true; + + /* D bits */ + ind->pseq = get_trau_uint32(trau_bits, 1280, T_bits_64, sizeof(T_bits_64), 170, 22); + ind->afn_ul = get_trau_uint32(trau_bits, 1280, T_bits_64, sizeof(T_bits_64), 234, 22); + ind->afn_dl = get_trau_uint32(trau_bits, 1280, T_bits_64, sizeof(T_bits_64), 298, 22); + + return 0; +} + +static int dec_ccu_data_ind_64(struct er_ccu_data_ind *ind, const ubit_t *trau_bits) +{ + /* 64kbps CCU-DATA-IND TRAU frame format: + * Direction: CCU => PCU + * + * (bit 0) 0 0 0 0 0 0 0 0 + * 0 0 0 0 0 0 0 0 + * 0 0 0 0 0 0 0 0 + * 0 0 0 0 0 0 0 0 + * 0 0 0 0 0 0 0 0 + * 0 0 0 0 0 0 0 0 + * 0 0 0 0 0 0 0 0 + * 0 0 0 0 0 0 0 0 + * 1 C1 C2 C3 C4 C5 C6 C7 + * PC E1 E2 E3 E4 E5 E6 E7 + * E8 E9 E10 E11 E12 E13 E14 E15 + * E16 E17 E18 E19 E20 E21 E22 E23 + * E24 E25 E26 E27 E28 E29 E30 E31 + * E32 E33 E34 E35 E36 E37 E38 E39 + * E40 E41 E42 E43 E44 E45 E46 E47 + * E48 E49 E50 E51 E52 E53 E54 E55 + * E56 E57 PE S1 S2 S3 D1 D2 + * D3 D4 D5 D6 D7 D8 D9 D10 + * D11 D12 D13 D14 D15 D16 D17 D18 + * D19 D20 D21 ... + * ... D1136 D1137 D1138 + * TA1 TA2 TA3 TA4 TA5 TA6 TA7 TA8 + * TA9 TA10 TA11 TA12 TA13 TA14 TA15 TA16 (bit 1279) + * TA17* TA18* TA19* TA20* TA21* TA22* TA23* TA24* + * TA25* TA26* TA27* TA28* TA29* TA30* TA31* TA32* + * + * C = Control bits + * D = Data bits + * E = Extended control bits + * PC = Parity over C-Bits (odd) + * PE = Parity over extended control bits (odd) */ + uint8_t sfq = 0; + uint8_t eadd = 0; + uint8_t e_2_4 = 0; + uint8_t mean_bep = 0; + uint8_t cv_bep = 0; + int cps; + int mcs = 0; + int rc; + int i; + + /* Validate C-Bits */ + if (calc_parity(trau_bits + 65, 7) != trau_bits[72]) { + LOGP(DLINP, LOGL_ERROR, "CCU-DATA-IND-64: invalid parity (C1-C7)\n"); + return -EINVAL; + } + + /* TAV (C6-C7) */ + osmo_ubit2pbit_ext((pbit_t *) &ind->tav, 0, trau_bits, 70, 2, 1); + + /* Validate E-Bits */ + if (calc_parity(trau_bits + 73, 57) != trau_bits[130]) { + LOGP(DLINP, LOGL_ERROR, "CCU-DATA-IND-64: invalid parity (E1-E57)\n"); + return -EINVAL; + } + + /* Downlink block error (E1) */ + if (trau_bits[73] == 0) + ind->dbe = true; + + /* Coding scheme (E2-E4) */ + osmo_ubit2pbit_ext((pbit_t *) &e_2_4, 5, trau_bits, 74, 3, 0); + switch (e_2_4) { + case 0: + ind->cs_hdr = CS_OR_HDR_AB; + break; + case 1: + ind->cs_hdr = CS_OR_HDR_CS1; + break; + case 2: + ind->cs_hdr = CS_OR_HDR_CS2; + break; + case 3: + ind->cs_hdr = CS_OR_HDR_CS3; + break; + case 4: + ind->cs_hdr = CS_OR_HDR_CS4; + break; + case 5: + ind->cs_hdr = CS_OR_HDR_HDR1; + break; + case 6: + ind->cs_hdr = CS_OR_HDR_HDR2; + break; + case 7: + ind->cs_hdr = CS_OR_HDR_HDR3; + break; + default: + LOGP(DLINP, LOGL_ERROR, "CCU-DATA-IND-64: invalid codec status (E2-E4)\n"); + return -EINVAL; + } + + /* RX-LEV (E5-E10, 63 in case of AB) */ + osmo_ubit2pbit_ext((pbit_t *) &ind->rx_lev, 2, trau_bits, 77, 6, 0); + + /* Estimated access delay (E11-E13, 0 in case of AB) */ + osmo_ubit2pbit_ext((pbit_t *) &eadd, 5, trau_bits, 83, 3, 0); + switch (eadd) { + case 0: + /* <2 or less */ + ind->est_acc_del_dev = -3; + break; + case 1: + ind->est_acc_del_dev = -1; + break; + case 2: + ind->est_acc_del_dev = 1; + break; + case 4: + ind->est_acc_del_dev = 2; + break; + case 5: + /* >2 or more */ + ind->est_acc_del_dev = 3; + break; + case 6: + ind->est_acc_del_dev = 0; + break; + case 7: + ind->est_acc_del_dev = -2; + break; + default: + LOGP(DLINP, LOGL_ERROR, "CCU-DATA-IND-64: invalid estimated access delay (E11-E13)\n"); + return -EINVAL; + } + + if (ind->cs_hdr == CS_OR_HDR_CS1 || ind->cs_hdr == CS_OR_HDR_CS2 || ind->cs_hdr == CS_OR_HDR_CS3 + || ind->cs_hdr == CS_OR_HDR_CS4) { + /* Soft frame quality SFQ (E14-E16, 0 in case of AB) */ + osmo_ubit2pbit_ext((pbit_t *) &sfq, 5, trau_bits, 86, 3, 0); + ind->u.gprs.block_qual = sfq; + + /* Parity Check (E17, 1 in case of AB) */ + ind->u.gprs.parity_ok = trau_bits[89]; + + } else { + /* Mean BEP (E14-E20) */ + osmo_ubit2pbit_ext((pbit_t *) &mean_bep, 1, trau_bits, 86, 7, 0); + ind->u.egprs.mean_bep = mean_bep; + + /* CV BEP (E21-E23) */ + osmo_ubit2pbit_ext((pbit_t *) &cv_bep, 5, trau_bits, 93, 3, 0); + ind->u.egprs.mean_bep = cv_bep; + + /* RLC/MAC header quality (E24) */ + if (trau_bits[96] == 0) { + ind->u.egprs.hdr_good = true; + + /* Data block quality (E25/E26) */ + if (trau_bits[97] == 0) + ind->u.egprs.data_good[0] = true; + if (trau_bits[98] == 0) + ind->u.egprs.data_good[1] = true; + } else { + /* A bad RLC/MAC header always means that the the data blocks + * cannot be valid. */ + ind->u.egprs.data_good[0] = false; + ind->u.egprs.data_good[1] = false; + } + + } + + /* Data bits */ + switch (ind->cs_hdr) { + case CS_OR_HDR_CS1: + osmo_ubit2pbit_ext((pbit_t *) &ind->data, 0, trau_bits, 134, 184, 1); + rc = osmo_crc16gen_check_bits(&cs1_crc16, trau_bits + 134, 184, trau_bits + 134 + 184); + if (rc != 0) { + LOGP(DLINP, LOGL_ERROR, "CCU-DATA-IND-64: CRC error in CS1 block\n"); + return -EINVAL; + } + ind->data_len = 23; + break; + case CS_OR_HDR_CS2: + osmo_ubit2pbit_ext((pbit_t *) &ind->data, 0, trau_bits, 134, 271, 1); + ind->data_len = 34; + break; + case CS_OR_HDR_CS3: + osmo_ubit2pbit_ext((pbit_t *) &ind->data, 0, trau_bits, 134, 315, 1); + ind->data_len = 40; + break; + case CS_OR_HDR_CS4: + osmo_ubit2pbit_ext((pbit_t *) &ind->data, 0, trau_bits, 134, 431, 1); + ind->data_len = 54; + break; + case CS_OR_HDR_HDR1: + case CS_OR_HDR_HDR2: + case CS_OR_HDR_HDR3: + osmo_ubit2pbit_ext((pbit_t *) &ind->data, 0, trau_bits, 134, 40, 1); + cps = cps_from_mcs_block(ind->data, ind->cs_hdr, true); + if (cps < 0) { + LOGP(DLINP, LOGL_NOTICE, + "CCU-DATA-IND-64: unable to read CPS from data block, bad data block received?\n"); + break; + } + mcs = mcs_from_cps((uint8_t) cps, ind->cs_hdr); + if (mcs < 0) { + LOGP(DLINP, LOGL_NOTICE, + "CCU-DATA-IND-64: unable to determine coding scheme (MCS) from CPS, bad data block received?\n"); + break; + } + + /* Note: receiving noise (and eventually bad CPS field, may + * happen from time to time and is not an error condition. */ + + switch (mcs) { + case 1: + osmo_ubit2pbit_ext((pbit_t *) &ind->data, 0, trau_bits, 134, 209, 1); + ind->data_len = 27; + break; + case 2: + osmo_ubit2pbit_ext((pbit_t *) &ind->data, 0, trau_bits, 134, 257, 1); + ind->data_len = 33; + break; + case 3: + osmo_ubit2pbit_ext((pbit_t *) &ind->data, 0, trau_bits, 134, 329, 1); + ind->data_len = 42; + break; + case 4: + osmo_ubit2pbit_ext((pbit_t *) &ind->data, 0, trau_bits, 134, 385, 1); + ind->data_len = 49; + break; + case 5: + osmo_ubit2pbit_ext((pbit_t *) &ind->data, 0, trau_bits, 134, 487, 1); + ind->data_len = 61; + break; + case 6: + osmo_ubit2pbit_ext((pbit_t *) &ind->data, 0, trau_bits, 134, 631, 1); + ind->data_len = 79; + break; + case 7: + osmo_ubit2pbit_ext((pbit_t *) &ind->data, 0, trau_bits, 134, 946, 1); + ind->data_len = 119; + break; + case 8: + osmo_ubit2pbit_ext((pbit_t *) &ind->data, 0, trau_bits, 134, 1138, 1); + ind->data_len = 143; + break; + default: + LOGP(DLINP, LOGL_ERROR, "CCU-DATA-IND-64: invalid cs_hdr set\n"); + return -EINVAL; + } + break; + case CS_OR_HDR_AB: + /* Note: The useful data starts at D13 and is byte-aligned inside the TRAU frame. + * The data string contains 4 items, each 8 bytes long, 32 bytes total. */ + osmo_ubit2pbit_ext((pbit_t *) &ind->data, 0, trau_bits, 144, 256, 1); + ind->data_len = 32; + + for (i = 0; i < 4; i++) { + rc = decode_ab(&ind->ab[i], ind->data + i * 8); + if (rc < 0) + return -EINVAL; + } + break; + default: + LOGP(DLINP, LOGL_ERROR, "CCU-DATA-IND-64: invalid cs_hdr set\n"); + return -EINVAL; + } + + return 0; +}; + +static int dec_ccu_data_ind_64_mcs9(struct er_ccu_data_ind *ind, const ubit_t *trau_bits) +{ + /* 64kbps CCU-DATA-IND (MCS9) TRAU frame format: + * Direction: CCU => PCU + * + * (bit 0) 0 0 0 0 0 0 0 0 + * 0 0 0 0 0 0 0 0 + * 1 D1 D2 D3 D4 D5 D6 D7 + * D8 D9 D10 D11 D12 D13 D14 D15 + * D16 D17 D18 D19 D20 D21 D22 D23 + * D24 D25 D26 D27 D28 D29 D30 D31 + * D32 D33 D34 D35 D36 D37 D38 D39 + * D40 D41 D42 D43 D44 D45 D46 D47 + * D48 C1 C2 C3 C4 C5 C6 C7 + * PC E1 E2 E3 E4 E5 E6 E7 + * E8 E9 E10 E11 E12 E13 E14 E15 + * E16 E17 E18 E19 E20 E21 E22 E23 + * PE S1 S2 D49 D50 D51 D52 D53 + * D54 D55 D56 D57 D58 D59 D60 D61 + * D62 D63 D64 ... + * ... D1219 D1220 D1221 + * TA1 TA2 TA3 TA4 TA5 TA6 TA7 TA8 + * TA9 TA10 TA11 TA12 TA13 TA14 TA15 TA16 (bit 1279) + * TA17* TA18* TA19* TA20* TA21* TA22* TA23* TA24* + * TA25* TA26* TA27* TA28* TA29* TA30* TA31* TA32* + * + * C = Control bits + * D = Data bits + * E = Extended control bits + * PC = Parity over C-Bits (odd) + * PE = Parity over extended control bits (odd) */ + + ubit_t block[1234]; + uint8_t eadd = 0; + uint8_t mean_bep = 0; + uint8_t cv_bep = 0; + + /* Validate C-Bits */ + if (calc_parity(trau_bits + 65, 7) != trau_bits[72]) { + LOGP(DLINP, LOGL_ERROR, "CCU-DATA-IND-64: invalid parity (C1-C7)\n"); + return -EINVAL; + } + + /* TAV (C6-C7) */ + osmo_ubit2pbit_ext((pbit_t *) &ind->tav, 0, trau_bits, 70, 2, 1); + + /* Validate E-Bits */ + if (calc_parity(trau_bits + 73, 23) != trau_bits[96]) { + LOGP(DLINP, LOGL_ERROR, "CCU-DATA-IND-64: invalid parity (E1-E23)\n"); + return -EINVAL; + } + + /* Downlink block error (E1) */ + if (trau_bits[73] == 0) + ind->dbe = true; + + /* MCS9 uses CS header type 1 */ + ind->cs_hdr = CS_OR_HDR_HDR1; + + /* RX-LEV (E2-E7) */ + osmo_ubit2pbit_ext((pbit_t *) &ind->rx_lev, 2, trau_bits, 74, 6, 0); + + /* Estimated access delay (E8-E10) */ + osmo_ubit2pbit_ext((pbit_t *) &eadd, 5, trau_bits, 80, 3, 0); + switch (eadd) { + case 0: + /* <2 or less */ + ind->est_acc_del_dev = -3; + break; + case 1: + ind->est_acc_del_dev = -1; + break; + case 2: + ind->est_acc_del_dev = 1; + break; + case 4: + ind->est_acc_del_dev = 2; + break; + case 5: + /* >2 or more */ + ind->est_acc_del_dev = 3; + break; + case 6: + ind->est_acc_del_dev = 0; + break; + case 7: + ind->est_acc_del_dev = -2; + break; + default: + LOGP(DLINP, LOGL_ERROR, "CCU-DATA-IND-64: invalid estimated access delay (E11-E13)\n"); + return -EINVAL; + } + + /* Mean BEP (E11-E17) */ + osmo_ubit2pbit_ext((pbit_t *) &mean_bep, 1, trau_bits, 83, 7, 0); + ind->u.egprs.mean_bep = mean_bep; + + /* CV BEP (E18-E20) */ + osmo_ubit2pbit_ext((pbit_t *) &cv_bep, 5, trau_bits, 90, 3, 0); + ind->u.egprs.mean_bep = cv_bep; + + /* RLC/MAC header quality (E21) */ + if (trau_bits[93] == 0) { + ind->u.egprs.hdr_good = true; + + /* Data block quality (E22/E23) */ + if (trau_bits[94] == 0) + ind->u.egprs.data_good[0] = true; + if (trau_bits[95] == 0) + ind->u.egprs.data_good[1] = true; + } else { + /* A bad RLC/MAC header always means that the the data blocks + * cannot be valid. */ + ind->u.egprs.data_good[0] = false; + ind->u.egprs.data_good[1] = false; + } + + /* For capacity reasons the following fields are stripped from the + * header: Spare, RSB, CPS. This means we have to restore those + * fields to get a valid MCS9 block. See also: 3GPP TS 44.060, + * section 10.3a.4.1 */ + memcpy(block, trau_bits + 17, 32); + block[32] = 0; /* CPS 0 */ + block[33] = 0; /* CPS 1 */ + block[34] = 0; /* CPS 2 */ + block[35] = 0; /* CPS 3 */ + block[36] = 0; /* CPS 4 */ + block[37] = 0; /* RSB (not a resent block - guessed) */ + block[38] = trau_bits[49]; /* PI */ + block[39] = 0; /* Spare */ + block[40] = 0; /* Spare */ + block[41] = 0; /* Spare */ + block[42] = 0; /* Spare */ + block[43] = 0; /* Spare */ + block[44] = 0; /* Spare */ + block[45] = 0; /* Spare */ + memcpy(block + 45, trau_bits + 50, 15); + memcpy(block + 45, trau_bits + 99, 1173); + + osmo_ubit2pbit_ext((pbit_t *) &ind->data, 0, block, 0, sizeof(block), 1); + + return 0; +} + +/*! decode an 64k Ericsson GPRS (GSL) TRAU frame. + * \param[out] fr caller-allocated output data structure. + * \param[in] bits unpacked input bits (1280). + * \return 0 on success; negative in case of error. */ +int er_gprs_trau_frame_decode_64k(struct er_gprs_trau_frame *fr, const ubit_t *bits) +{ + uint8_t c_1_5 = 0; + const ubit_t expected_sync_pattern[] = { + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, + }; + const ubit_t expected_sync_pattern_mcs9[] = { + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, + }; + int rc; + + memset(fr, 0, sizeof(*fr)); + + /* Determine frame type */ + osmo_ubit2pbit_ext((pbit_t *) &c_1_5, 0, bits, 65, 5, 1); + + /* Validate sync patern */ + switch (c_1_5) { + case PCU_TRAU_ER_FT_CCU_SYNC_IND: + case PCU_TRAU_ER_FT_DATA_IND: + if (memcmp(bits, expected_sync_pattern, ARRAY_SIZE(expected_sync_pattern)) != 0) { + LOGP(DLINP, LOGL_ERROR, "CCU-XXXX-IND-64: invalid sync pattern (T0,T1)\n"); + return -EINVAL; + } + break; + case PCU_TRAU_ER_FT_DATA9_IND: + if (memcmp(bits, expected_sync_pattern_mcs9, ARRAY_SIZE(expected_sync_pattern_mcs9)) != 0) { + LOGP(DLINP, LOGL_ERROR, "CCU-DATA-IND-64: invalid sync pattern (T0,T1)\n"); + return -EINVAL; + } + break; + default: + LOGP(DLINP, LOGL_ERROR, "CCU-XXXX-IND-64: invalid frame type (%02x)\n", c_1_5); + rc = -EINVAL; + } + + /* Decode frame */ + switch (c_1_5) { + case PCU_TRAU_ER_FT_CCU_SYNC_IND: + fr->type = ER_GPRS_TRAU_FT_SYNC; + rc = dec_ccu_sync_ind_64(&fr->u.ccu_sync_ind, bits); + break; + case PCU_TRAU_ER_FT_DATA_IND: + fr->type = ER_GPRS_TRAU_FT_DATA; + rc = dec_ccu_data_ind_64(&fr->u.ccu_data_ind, bits); + break; + case PCU_TRAU_ER_FT_DATA9_IND: + fr->type = ER_GPRS_TRAU_FT_DATA; + rc = dec_ccu_data_ind_64_mcs9(&fr->u.ccu_data_ind, bits); + break; + default: + LOGP(DLINP, LOGL_ERROR, "CCU-XXXX-IND-64: invalid frame type (%02x)\n", c_1_5); + rc = -EINVAL; + } + + /* Ensure that we exit with predictable data in case of error. */ + if (rc < 0) + memset(fr, 0, sizeof(*fr)); + + return rc; +} diff --git a/tests/Makefile.am b/tests/Makefile.am index dcd9a4f..580c38b 100644 --- a/tests/Makefile.am +++ b/tests/Makefile.am @@ -8,7 +8,8 @@ subchan_demux/subchan_demux_test \ ipa_recv/ipa_recv_test \ rtp_test/rtp_test \ - trau_sync/trau_sync_test + trau_sync/trau_sync_test \ + trau_pcu_ericsson/trau_pcu_ericsson_test e1inp_ipa_bsc_test_SOURCES = e1inp_ipa_bsc_test.c e1inp_ipa_bsc_test_LDADD = $(top_builddir)/src/libosmoabis.la \ @@ -41,6 +42,9 @@ trau_sync_trau_sync_test_LDADD = $(top_builddir)/src/libosmotrau.la \ $(LIBOSMOCORE_LIBS) +trau_pcu_ericsson_trau_pcu_ericsson_test_SOURCES = trau_pcu_ericsson/trau_pcu_ericsson_test.c +trau_pcu_ericsson_trau_pcu_ericsson_test_LDADD = $(top_builddir)/src/libosmotrau.la \ + $(LIBOSMOCORE_LIBS) # boilerplate for the tests # The `:;' works around a Bash 3.2 bug when the output is not writeable. @@ -65,7 +69,8 @@ subchan_demux/subchan_demux_test.ok \ ipa_recv/ipa_recv_test.ok \ rtp_test/rtp_test.ok \ - trau_sync/trau_sync_test.ok trau_sync/trau_sync_test.err + trau_sync/trau_sync_test.ok trau_sync/trau_sync_test.err \ + trau_pcu_ericsson/trau_pcu_ericsson_test.ok TESTSUITE = $(srcdir)/testsuite diff --git a/tests/testsuite.at b/tests/testsuite.at index 4faf429..4dfb793 100644 --- a/tests/testsuite.at +++ b/tests/testsuite.at @@ -35,3 +35,9 @@ cat $abs_srcdir/trau_sync/trau_sync_test.err > experr AT_CHECK([$abs_top_builddir/tests/trau_sync/trau_sync_test], [0], [expout], [experr]) AT_CLEANUP + +AT_SETUP([trau_pcu_ericsson]) +AT_KEYWORDS([trau_pcu_ericsson]) +cat $abs_srcdir/trau_pcu_ericsson/trau_pcu_ericsson_test.ok > expout +AT_CHECK([$abs_top_builddir/tests/trau_pcu_ericsson/trau_pcu_ericsson_test], [0], [expout], [ignore]) +AT_CLEANUP diff --git a/tests/trau_pcu_ericsson/trau_pcu_ericsson_test.c b/tests/trau_pcu_ericsson/trau_pcu_ericsson_test.c new file mode 100644 index 0000000..986ab79 --- /dev/null +++ b/tests/trau_pcu_ericsson/trau_pcu_ericsson_test.c @@ -0,0 +1,1392 @@ + +#include <osmocom/core/application.h> +#include <osmocom/core/logging.h> +#include <osmocom/core/bits.h> +#include <osmocom/core/utils.h> +#include <osmocom/trau/trau_pcu_ericsson.h> + +void dump_frame(ubit_t *trau_frame, size_t len) +{ + uint16_t i; + printf(" "); + for (i = 0; i < len; i++) { + if (i % 8 == 0 && i > 0) + printf("\n "); + printf("%u ", trau_frame[i]); + } + + printf("\n"); +} + +static void dump_ab(struct er_gprs_ab *ab) +{ + printf(" ab->ab_type=%u\n", ab->ab_type); + printf(" ab->rxlev=%u\n", ab->rxlev); + printf(" ab->acc_delay=%u\n", ab->acc_delay); + printf(" ab->data=%04x\n", ab->data); + + if (ab->ab_type == 1) { + printf(" ab->u.type_1.crc=%u\n", ab->u.type_1.crc); + printf(" ab->u.type_1.burst_qual=%u\n", ab->u.type_1.burst_qual); + printf(" ab->u.type_1.frame_qual=%u\n", ab->u.type_1.frame_qual); + } else if (ab->ab_type == 2) { + printf(" ab->u.type_2.abi=%u\n", ab->u.type_2.abi); + printf(" ab->u.type_2.type=%u\n", ab->u.type_2.type); + } else + printf(" bad data\n"); +} + +void er_gprs_trau_frame_encode_16k_FT_SYNC_test(void) +{ + struct er_gprs_trau_frame frame; + ubit_t trau_frame[ER_GPRS_TRAU_FRAME_LEN_16K]; + int rc; + + printf("\n==> %s\n", __func__); + memset(&frame, 0, sizeof(frame)); + frame.u.pcu_sync_ind.pseq = 1234; + frame.u.pcu_sync_ind.tav = 0; + frame.u.pcu_sync_ind.fn_ul = 0xFFFFFFFF; /* optional, not included */ + frame.u.pcu_sync_ind.fn_dl = 0xFFFFFFFF; /* optional, not included */ + frame.u.pcu_sync_ind.fn_ss = 0xFFFFFFFF; /* optional, not included */ + frame.u.pcu_sync_ind.ls = 0xFFFFFFFF; /* optional, not included */ + frame.u.pcu_sync_ind.ss = 0xFFFFFFFF; /* optional, not included */ + frame.type = ER_GPRS_TRAU_FT_SYNC; + + rc = er_gprs_trau_frame_encode_16k(trau_frame, &frame); + OSMO_ASSERT(rc == 320); + dump_frame(trau_frame, ER_GPRS_TRAU_FRAME_LEN_16K); +} + +void er_gprs_trau_frame_encode_16k_FT_DATA_test(void) +{ + struct er_gprs_trau_frame frame; + ubit_t trau_frame[ER_GPRS_TRAU_FRAME_LEN_16K]; + int rc; + + uint8_t data_cs1[] = { + 0x07, 0x00, 0x05, 0x01, 0xc0, 0x05, 0x08, 0x02, + 0x01, 0x2a, 0x44, 0x00, 0xf1, 0x10, 0x23, 0x6e, + 0x00, 0x17, 0x16, 0x18, 0x05, 0xf4, 0xf5 + }; + + uint8_t data_cs2[] = { + 0x0f, 0x00, 0x08, 0x69, 0x01, 0xc0, 0x09, 0x08, + 0x02, 0x01, 0x2a, 0x44, 0x00, 0xf1, 0x10, 0x23, + 0x6e, 0x00, 0x17, 0x16, 0x18, 0x05, 0xf4, 0xd9, + 0xa1, 0x82, 0xdd, 0xd6, 0xee, 0xaa, 0x2b, 0x2b, + 0x2b, 0x00 + }; + + printf("\n==> %s (CS1)\n", __func__); + memset(&frame, 0, sizeof(frame)); + frame.u.pcu_data_ind.tav = 0; + frame.u.pcu_data_ind.ul_frame_err = false; + frame.u.pcu_data_ind.cs_hdr = CS_OR_HDR_CS1; + frame.u.pcu_data_ind.ul_chan_mode = ER_UL_CHMOD_NB_GMSK; + frame.u.pcu_data_ind.atten_db = 0x01; + frame.u.pcu_data_ind.timing_offset = 0x01; + frame.type = ER_GPRS_TRAU_FT_DATA; + memcpy(frame.u.pcu_data_ind.data, data_cs1, sizeof(data_cs1)); + rc = er_gprs_trau_frame_encode_16k(trau_frame, &frame); + OSMO_ASSERT(rc == 320); + dump_frame(trau_frame, ER_GPRS_TRAU_FRAME_LEN_16K); + + printf("\n==> %s (CS2)\n", __func__); + memset(&frame, 0, sizeof(frame)); + frame.u.pcu_data_ind.tav = 0; + frame.u.pcu_data_ind.ul_frame_err = false; + frame.u.pcu_data_ind.cs_hdr = CS_OR_HDR_CS2; + frame.u.pcu_data_ind.ul_chan_mode = ER_UL_CHMOD_NB_GMSK; + frame.u.pcu_data_ind.atten_db = 0x08; + frame.u.pcu_data_ind.timing_offset = 0x80; + frame.type = ER_GPRS_TRAU_FT_DATA; + memcpy(frame.u.pcu_data_ind.data, data_cs2, sizeof(data_cs2)); + rc = er_gprs_trau_frame_encode_16k(trau_frame, &frame); + OSMO_ASSERT(rc == 320); + dump_frame(trau_frame, ER_GPRS_TRAU_FRAME_LEN_16K); +} + +void er_gprs_trau_frame_decode_16k_FT_SYNC_test(void) +{ + int rc; + struct er_gprs_trau_frame frame; + + /* TRAU frame as received from BTS when no PCU-SYNC-IND was sent yet. + * The PSEQ value is not yet available */ + const ubit_t bits_1[] = { + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 1, 0, 1, 0, 1, 0, 0, + 1, 1, 1, 0, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 0, 0, 1, 0, 1, 1, 1, + 1, 1, 0, 0, 0, 0, 1, 1, + 0, 1, 1, 1, 1, 0, 0, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 0, 0, 1, 0, 1, 1, 1, + 1, 1, 0, 0, 0, 0, 1, 1, + 0, 1, 1, 1, 0, 0, 1, 0, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + }; + + /* TRAU frame as received from BTS after a few PCU-SYNC-IND frames + * were sent. The PSEQ value is now known to the BTS. */ + const ubit_t bits_2[] = { + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 1, 0, 1, 0, 1, 1, 0, + 0, 1, 1, 0, 1, 1, 1, 1, + 1, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 0, 0, 0, 0, 0, 0, 1, + 1, 1, 1, 0, 1, 0, 0, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 0, 1, 0, 1, 1, 1, 0, + 1, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 1, 1, 0, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 0, 1, 0, 1, 1, 1, 0, + 1, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 1, 1, 0, 0, 0, 0, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + }; + + printf("\n==> %s (not yet synced)\n", __func__); + rc = er_gprs_trau_frame_decode_16k(&frame, bits_1); + OSMO_ASSERT(rc == 0); + OSMO_ASSERT(frame.type == ER_GPRS_TRAU_FT_SYNC); + printf(" ccu_sync_ind.tav=%02x\n", frame.u.ccu_sync_ind.tav); + printf(" ccu_sync_ind.dfe=%02x\n", frame.u.ccu_sync_ind.dfe); + printf(" ccu_sync_ind.dbe=%02x\n", frame.u.ccu_sync_ind.dbe); + printf(" ccu_sync_ind.pseq=%u\n", frame.u.ccu_sync_ind.pseq); + printf(" ccu_sync_ind.afn_ul=%u\n", frame.u.ccu_sync_ind.afn_ul); + printf(" ccu_sync_ind.afn_dl=%u\n", frame.u.ccu_sync_ind.afn_dl); + + printf("\n==> %s (synced)\n", __func__); + rc = er_gprs_trau_frame_decode_16k(&frame, bits_2); + OSMO_ASSERT(rc == 0); + OSMO_ASSERT(frame.type == ER_GPRS_TRAU_FT_SYNC); + printf(" ccu_sync_ind.tav=%02x\n", frame.u.ccu_sync_ind.tav); + printf(" ccu_sync_ind.dfe=%02x\n", frame.u.ccu_sync_ind.dfe); + printf(" ccu_sync_ind.dbe=%02x\n", frame.u.ccu_sync_ind.dbe); + printf(" ccu_sync_ind.pseq=%u\n", frame.u.ccu_sync_ind.pseq); + printf(" ccu_sync_ind.afn_ul=%u\n", frame.u.ccu_sync_ind.afn_ul); + printf(" ccu_sync_ind.afn_dl=%u\n", frame.u.ccu_sync_ind.afn_dl); +} + +void er_gprs_trau_frame_decode_16k_FT_DATA_test(void) +{ + int rc; + struct er_gprs_trau_frame frame; + + /* TRAU frame with valid CS1 block and correct CRC. */ + const ubit_t bits_cs1[] = { + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 0, 1, 0, 1, 1, 0, 0, + 0, 1, 0, 0, 0, 0, 0, 0, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 0, 1, 1, 1, 1, 0, 0, + 0, 1, 0, 0, 0, 1, 1, 0, + 0, 0, 0, 0, 0, 1, 0, 1, + 0, 1, 0, 0, 0, 0, 1, 0, + 0, 0, 1, 1, 1, 0, 0, 0, + 1, 1, 1, 1, 0, 1, 0, 0, + 1, 1, 0, 0, 0, 1, 0, 1, + 1, 0, 0, 1, 1, 1, 0, 1, + 0, 0, 0, 1, 0, 0, 1, 0, + 0, 1, 0, 1, 0, 1, 0, 1, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 1, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 1, 0, 1, 0, 0, + 0, 1, 0, 0, 0, 1, 1, 1, + 0, 1, 0, 0, 0, 0, 0, 0, + 1, 0, 1, 1, 1, 0, 0, 0, + 0, 0, 0, 1, 1, 0, 0, 0, + 1, 0, 1, 0, 1, 0, 0, 0, + 0, 0, 0, 0, 0, 1, 1, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 0, 0, 0, 0, 0, 0, 0, + 1, 0, 0, 0, 0, 0, 0, 0, + 1, 0, 0, 0, 0, 0, 1, 1, + 0, 1, 1, 0, 1, 0, 1, 1, + 0, 1, 0, 1, 0, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + }; + + /* TRAU frame with valid CS2 block. */ + const ubit_t bits_cs2[] = { + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 0, 1, 0, 1, 1, 0, 0, + 0, 1, 0, 0, 1, 0, 0, 0, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 0, 1, 1, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 1, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 1, + 0, 0, 0, 0, 0, 1, 0, 0, + 1, 0, 0, 1, 0, 1, 1, 0, + 1, 0, 1, 1, 1, 0, 0, 0, + 0, 0, 1, 0, 0, 0, 1, 1, + 1, 1, 1, 1, 1, 0, 0, 0, + 1, 1, 1, 0, 0, 1, 1, 1, + 0, 0, 1, 1, 0, 1, 1, 1, + 1, 0, 1, 1, 0, 1, 1, 1, + 1, 0, 1, 1, 0, 1, 1, 1, + 0, 0, 1, 1, 0, 0, 0, 1, + 1, 0, 1, 1, 0, 1, 0, 1, + 0, 0, 1, 1, 0, 1, 1, 0, + 0, 0, 0, 0, 0, 1, 1, 0, + 0, 0, 1, 1, 0, 1, 1, 1, + 1, 0, 1, 1, 0, 1, 0, 1, + 1, 0, 1, 1, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 1, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 1, 0, 0, + 0, 0, 0, 0, 0, 0, 1, 0, + 1, 1, 0, 0, 1, 1, 0, 0, + 1, 1, 1, 0, 1, 1, 0, 0, + 1, 1, 1, 1, 1, 1, 1, 0, + 1, 0, 1, 0, 0, 1, 1, 0, + 1, 0, 1, 0, 0, 1, 1, 0, + 1, 0, 1, 0, 0, 1, 1, 0, + 1, 0, 1, 0, 0, 1, 1, 0, + 1, 0, 1, 0, 0, 1, 1, 0, + 1, 0, 1, 0, 0, 1, 1, 0, + 1, 0, 1, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 1, 1, 1, 1, + }; + + /* TRAU frame with AB data (noise). */ + const ubit_t bits_ab[] = { + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 0, 1, 0, 1, 1, 0, 0, + 0, 1, 1, 0, 0, 0, 0, 0, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 0, 1, 1, 0, 1, 1, 1, + 0, 0, 0, 0, 0, 1, 1, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 0, 0, + 1, 1, 1, 1, 1, 1, 0, 0, + 0, 0, 0, 1, 1, 1, 0, 1, + 1, 1, 1, 1, 1, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 1, 1, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 0, 0, + 1, 1, 1, 1, 1, 1, 0, 0, + 0, 0, 0, 1, 1, 0, 0, 0, + 1, 1, 1, 1, 1, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 1, 1, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 0, 0, + 1, 1, 1, 1, 1, 1, 0, 0, + 0, 0, 0, 1, 1, 0, 0, 1, + 1, 1, 1, 1, 1, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 1, 1, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 0, 0, + 1, 1, 1, 1, 1, 1, 0, 0, + 0, 0, 1, 0, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + }; + + printf("\n==> %s (CS1)\n", __func__); + rc = er_gprs_trau_frame_decode_16k(&frame, bits_cs1); + OSMO_ASSERT(rc == 0); + OSMO_ASSERT(frame.type == ER_GPRS_TRAU_FT_DATA); + printf(" ccu_data_ind.tav=%02x\n", frame.u.ccu_data_ind.tav); + printf(" ccu_data_ind.dbe=%u\n", frame.u.ccu_data_ind.dbe); + printf(" ccu_data_ind.cs_hdr=%u\n", frame.u.ccu_data_ind.cs_hdr); + printf(" ccu_data_ind.gprs.rx_lev=%u\n", frame.u.ccu_data_ind.rx_lev); + printf(" ccu_data_ind.gprs.est_acc_del_dev=%d\n", frame.u.ccu_data_ind.est_acc_del_dev); + printf(" ccu_data_ind.u.gprs.block_qual=%u\n", frame.u.ccu_data_ind.u.gprs.block_qual); + printf(" ccu_data_ind.u.gprs.parity_ok=%u\n", frame.u.ccu_data_ind.u.gprs.parity_ok); + printf(" ccu_data_ind.u.data_len=%u\n", frame.u.ccu_data_ind.data_len); + printf(" ccu_data_ind.data=%s\n", osmo_hexdump_nospc(frame.u.ccu_data_ind.data, frame.u.ccu_data_ind.data_len)); + + printf("\n==> %s (CS2)\n", __func__); + rc = er_gprs_trau_frame_decode_16k(&frame, bits_cs2); + OSMO_ASSERT(rc == 0); + OSMO_ASSERT(frame.type == ER_GPRS_TRAU_FT_DATA); + printf(" ccu_data_ind.tav=%02x\n", frame.u.ccu_data_ind.tav); + printf(" ccu_data_ind.dbe=%u\n", frame.u.ccu_data_ind.dbe); + printf(" ccu_data_ind.cs_hdr=%u\n", frame.u.ccu_data_ind.cs_hdr); + printf(" ccu_data_ind.gprs.rx_lev=%u\n", frame.u.ccu_data_ind.rx_lev); + printf(" ccu_data_ind.gprs.est_acc_del_dev=%d\n", frame.u.ccu_data_ind.est_acc_del_dev); + printf(" ccu_data_ind.u.gprs.block_qual=%u\n", frame.u.ccu_data_ind.u.gprs.block_qual); + printf(" ccu_data_ind.u.gprs.parity_ok=%u\n", frame.u.ccu_data_ind.u.gprs.parity_ok); + printf(" ccu_data_ind.u.data_len=%u\n", frame.u.ccu_data_ind.data_len); + printf(" ccu_data_ind.data=%s\n", osmo_hexdump_nospc(frame.u.ccu_data_ind.data, frame.u.ccu_data_ind.data_len)); + + printf("\n==> %s (AB)\n", __func__); + rc = er_gprs_trau_frame_decode_16k(&frame, bits_ab); + OSMO_ASSERT(rc == 0); + OSMO_ASSERT(frame.type == ER_GPRS_TRAU_FT_DATA); + printf(" ccu_data_ind.tav=%02x\n", frame.u.ccu_data_ind.tav); + printf(" ccu_data_ind.dbe=%u\n", frame.u.ccu_data_ind.dbe); + printf(" ccu_data_ind.cs_hdr=%u\n", frame.u.ccu_data_ind.cs_hdr); + printf(" ccu_data_ind.gprs.rx_lev=%u\n", frame.u.ccu_data_ind.rx_lev); + printf(" ccu_data_ind.gprs.est_acc_del_dev=%d\n", frame.u.ccu_data_ind.est_acc_del_dev); + printf(" ccu_data_ind.u.gprs.block_qual=%u\n", frame.u.ccu_data_ind.u.gprs.block_qual); + printf(" ccu_data_ind.u.gprs.parity_ok=%u\n", frame.u.ccu_data_ind.u.gprs.parity_ok); + printf(" ccu_data_ind.u.data_len=%u\n", frame.u.ccu_data_ind.data_len); + printf(" ccu_data_ind.data=%s\n", osmo_hexdump_nospc(frame.u.ccu_data_ind.data, frame.u.ccu_data_ind.data_len)); + printf(" ccu_data_ind.ab[0]=\n"); + dump_ab(&frame.u.ccu_data_ind.ab[0]); + printf(" ccu_data_ind.ab[1]=\n"); + dump_ab(&frame.u.ccu_data_ind.ab[1]); + printf(" ccu_data_ind.ab[2]=\n"); + dump_ab(&frame.u.ccu_data_ind.ab[2]); + printf(" ccu_data_ind.ab[3]=\n"); + dump_ab(&frame.u.ccu_data_ind.ab[3]); +} + +void er_gprs_trau_frame_encode_64k_FT_SYNC_test(void) +{ + struct er_gprs_trau_frame frame; + ubit_t trau_frame[ER_GPRS_TRAU_FRAME_LEN_64K]; + int rc; + + printf("\n==> %s\n", __func__); + memset(&frame, 0, sizeof(frame)); + frame.u.pcu_sync_ind.pseq = 1234; + frame.u.pcu_sync_ind.tav = 0; + frame.u.pcu_sync_ind.fn_ul = 0xFFFFFFFF; /* optional, not included */ + frame.u.pcu_sync_ind.fn_dl = 0xFFFFFFFF; /* optional, not included */ + frame.u.pcu_sync_ind.fn_ss = 0xFFFFFFFF; /* optional, not included */ + frame.u.pcu_sync_ind.ls = 0xFFFFFFFF; /* optional, not included */ + frame.u.pcu_sync_ind.ss = 0xFFFFFFFF; /* optional, not included */ + frame.type = ER_GPRS_TRAU_FT_SYNC; + + rc = er_gprs_trau_frame_encode_64k(trau_frame, &frame); + OSMO_ASSERT(rc == 1280); + dump_frame(trau_frame, ER_GPRS_TRAU_FRAME_LEN_64K); +} + +void er_gprs_trau_frame_encode_64k_FT_DATA_test(void) +{ + struct er_gprs_trau_frame frame; + ubit_t trau_frame[ER_GPRS_TRAU_FRAME_LEN_64K]; + int rc; + + uint8_t data_cs1[] = { + 0x07, 0x00, 0x05, 0x01, 0xc0, 0x05, 0x08, 0x02, + 0x01, 0x2a, 0x44, 0x00, 0xf1, 0x10, 0x23, 0x6e, + 0x00, 0x17, 0x16, 0x18, 0x05, 0xf4, 0xf5 + }; + + uint8_t data_cs2[] = { + 0x0f, 0x00, 0x08, 0x69, 0x01, 0xc0, 0x09, 0x08, + 0x02, 0x01, 0x2a, 0x44, 0x00, 0xf1, 0x10, 0x23, + 0x6e, 0x00, 0x17, 0x16, 0x18, 0x05, 0xf4, 0xd9, + 0xa1, 0x82, 0xdd, 0xd6, 0xee, 0xaa, 0x2b, 0x2b, + 0x2b, 0x00 + }; + + uint8_t data_cs3[] = { + 0x07, 0x00, 0x01, 0x01, 0xc0, 0x0d, 0x8a, 0x42, + 0x03, 0x0e, 0x23, 0x62, 0x1f, 0x72, 0x99, 0x3f, + 0x3f, 0x11, 0x43, 0xff, 0xff, 0x00, 0x00, 0x00, + 0x04, 0x2b, 0x06, 0x01, 0x21, 0xc0, 0xa8, 0x00, + 0x05, 0x27, 0x22, 0x80, 0x80, 0x21, 0x10, 0x00 + }; + + uint8_t data_cs4[] = { + 0x07, 0x00, 0x01, 0x01, 0xc0, 0x09, 0x8a, 0x42, + 0x03, 0x0e, 0x23, 0x62, 0x1f, 0x72, 0x99, 0x3f, + 0x3f, 0x11, 0x43, 0xff, 0xff, 0x00, 0x00, 0x00, + 0x04, 0x2b, 0x06, 0x01, 0x21, 0xc0, 0xa8, 0x00, + 0x05, 0x27, 0x22, 0x80, 0x80, 0x21, 0x10, 0x02, + 0x00, 0x00, 0x10, 0x81, 0x06, 0x08, 0x08, 0x08, + 0x08, 0x83, 0x06, 0x08, 0x08, 0x00 + }; + + uint8_t data_mcs1[] = { + 0x07, 0x80, 0x01, 0x18, 0x2c, 0xfe, 0x07, 0xf6, + 0x35, 0x0a, 0xe0, 0x2d, 0x0a, 0xe0, 0x63, 0x31, + 0xa3, 0x57, 0x56, 0x56, 0x56, 0x56, 0x56, 0x56, + 0x56, 0x56, 0x00 + }; + + uint8_t data_mcs2[] = { + 0x07, 0x80, 0x00, 0x12, 0x36, 0x10, 0x10, 0x10, + 0x00, 0x1a, 0x08, 0x10, 0x10, 0x10, 0x10, 0x2c, + 0xbd, 0xb2, 0x87, 0xf6, 0x03, 0x00, 0x2c, 0x02, + 0xe8, 0x35, 0x0a, 0xbe, 0x59, 0xc1, 0x00, 0x02, + 0x00 + }; + + uint8_t data_mcs3[] = { + 0x0f, 0x80, 0x00, 0x06, 0x68, 0xfe, 0x03, 0x80, + 0x0b, 0x10, 0x04, 0x02, 0x54, 0x88, 0x00, 0xe2, + 0x21, 0x46, 0xdc, 0x00, 0x2e, 0x2c, 0x30, 0x0a, + 0xe8, 0xd7, 0x6f, 0x4e, 0x55, 0xbd, 0xb0, 0xfe, + 0x56, 0x56, 0x56, 0x56, 0x56, 0x56, 0x56, 0x56, + 0x56, 0x00 + }; + + uint8_t data_mcs4[] = { + 0x07, 0x80, 0x00, 0x04, 0x68, 0xfe, 0x03, 0x80, + 0x0b, 0x10, 0x04, 0x02, 0x54, 0x88, 0x00, 0xe2, + 0x21, 0x46, 0xdc, 0x00, 0x2e, 0x2c, 0x30, 0x0a, + 0xe8, 0xfd, 0xe1, 0xb7, 0x79, 0x6c, 0xe7, 0xd8, + 0x57, 0x56, 0x56, 0x56, 0x56, 0x56, 0x56, 0x56, + 0x56, 0x56, 0x56, 0x56, 0x56, 0x56, 0x56, 0x56, + 0x00 + }; + + uint8_t data_mcs5[] = { + 0x07, 0x40, 0x00, 0x88, 0x86, 0xd3, 0x3f, 0x02, + 0x02, 0x02, 0x40, 0x03, 0x01, 0x02, 0x02, 0x02, + 0x82, 0x07, 0x33, 0xf2, 0xd0, 0x7e, 0x00, 0x80, + 0x45, 0x00, 0xbd, 0x46, 0xc1, 0x37, 0x2b, 0x18, + 0x40, 0x00, 0x40, 0x80, 0x42, 0x20, 0xc0, 0x01, + 0x04, 0x00, 0xc8, 0x80, 0x00, 0x00, 0x85, 0xc0, + 0x01, 0x20, 0x00, 0x81, 0x04, 0x00, 0x48, 0x41, + 0xa2, 0xbb, 0xcc, 0x0a + }; + + uint8_t data_mcs6[] = { + 0x07, 0x00, 0x00, 0xc2, 0x62, 0x00, 0x70, 0x82, + 0xa2, 0xd0, 0x80, 0xc3, 0x88, 0xd8, 0x87, 0x5c, + 0xe6, 0xcf, 0x4f, 0xc4, 0xd0, 0xff, 0x3f, 0x00, + 0x00, 0x00, 0xc1, 0x8a, 0x41, 0x40, 0x08, 0x30, + 0x2a, 0x40, 0xc1, 0x89, 0x08, 0x20, 0x60, 0x08, + 0x84, 0x00, 0x00, 0x00, 0x44, 0xa0, 0x01, 0x02, + 0x02, 0x02, 0xc2, 0xa0, 0x01, 0x02, 0x02, 0x02, + 0x02, 0x40, 0x03, 0x01, 0x02, 0x02, 0x02, 0x02, + 0x40, 0x03, 0x01, 0x02, 0x02, 0x02, 0xc2, 0x07, + 0x33, 0xf2, 0xd0, 0x7e, 0x00, 0x00 + }; + + uint8_t data_mcs7[] = { + 0x0f, 0x00, 0x00, 0x02, 0xa0, 0x05, 0x00, 0x27, + 0x28, 0x0a, 0x0d, 0x38, 0x8c, 0x88, 0x7d, 0xc8, + 0x65, 0xfe, 0xfc, 0x44, 0x0c, 0xfd, 0xff, 0x03, + 0x00, 0x00, 0x10, 0xac, 0x18, 0x04, 0x84, 0x00, + 0xa3, 0x02, 0x14, 0x9c, 0x88, 0x00, 0x02, 0x86, + 0x40, 0x08, 0x00, 0x00, 0x40, 0x04, 0x1a, 0x20, + 0x20, 0x20, 0x20, 0x0c, 0x1a, 0x20, 0x20, 0x20, + 0x20, 0x00, 0x34, 0x10, 0x20, 0xa0, 0xe1, 0xf4, + 0x8f, 0x80, 0x80, 0x00, 0xd0, 0x40, 0x80, 0x80, + 0x80, 0x80, 0xf0, 0xc1, 0x8c, 0x3c, 0xb4, 0x1f, + 0x00, 0x60, 0x11, 0x40, 0xaf, 0x51, 0xf0, 0xcd, + 0x0a, 0x06, 0x10, 0x00, 0x10, 0xa0, 0x10, 0x08, + 0x70, 0x00, 0x01, 0x00, 0x32, 0x20, 0x00, 0x40, + 0x21, 0x70, 0x00, 0x08, 0x40, 0x20, 0x01, 0x00, + 0x52, 0x90, 0xe8, 0x2e, 0xb3, 0x02 + }; + + uint8_t data_mcs8[] = { + 0x07, 0x00, 0x00, 0x02, 0x58, 0x05, 0x00, 0x27, + 0x28, 0x0a, 0x0d, 0x38, 0x8c, 0x88, 0x7d, 0xc8, + 0x65, 0xfe, 0xfc, 0x44, 0x0c, 0xfd, 0xff, 0x03, + 0x00, 0x00, 0x10, 0xac, 0x18, 0x04, 0x84, 0x00, + 0xa3, 0x02, 0x14, 0x9c, 0x88, 0x00, 0x02, 0x86, + 0x40, 0x08, 0x00, 0x00, 0x40, 0x04, 0x1a, 0x20, + 0x20, 0x20, 0x20, 0x0c, 0x1a, 0x20, 0x20, 0x20, + 0x20, 0x00, 0x34, 0x10, 0x20, 0x20, 0x20, 0x20, + 0x00, 0x34, 0x10, 0x20, 0x20, 0x20, 0x20, 0x7c, + 0x30, 0x23, 0xe0, 0xf4, 0x8f, 0x3c, 0xb4, 0x1f, + 0x00, 0x60, 0x11, 0x40, 0xaf, 0x51, 0xf0, 0xcd, + 0x0a, 0x06, 0x10, 0x00, 0x10, 0xa0, 0x10, 0x08, + 0x70, 0x00, 0x01, 0x00, 0x32, 0x20, 0x00, 0x40, + 0x21, 0x70, 0x00, 0x08, 0x40, 0x20, 0x01, 0x00, + 0x52, 0x90, 0xe8, 0x2e, 0xb3, 0xb2, 0xb2, 0xb2, + 0xb2, 0xb2, 0xb2, 0xb2, 0xb2, 0xb2, 0xb2, 0xb2, + 0xb2, 0xb2, 0xb2, 0xb2, 0xb2, 0xb2, 0xb2, 0xb2, + 0xb2, 0xb2, 0xb2, 0xb2, 0xb2, 0x02 + }; + + uint8_t data_mcs9[] = { + 0x07, 0x00, 0x00, 0x02, 0x28, 0x2c, 0x06, 0x00, + 0x27, 0x28, 0x0a, 0x0d, 0x38, 0x8c, 0x88, 0x7d, + 0xc8, 0x65, 0xfe, 0xfc, 0x44, 0x0c, 0xfd, 0xff, + 0x03, 0x00, 0x00, 0x10, 0xac, 0x18, 0x04, 0x84, + 0x00, 0xa3, 0x02, 0x14, 0x9c, 0x88, 0x00, 0x02, + 0x86, 0x40, 0x08, 0x00, 0x00, 0x40, 0x04, 0x1a, + 0x20, 0x20, 0x20, 0x20, 0x0c, 0x1a, 0x20, 0x20, + 0x20, 0x20, 0x00, 0x34, 0x10, 0x20, 0x20, 0x20, + 0x20, 0x00, 0x34, 0x10, 0x20, 0x20, 0x20, 0x20, + 0x7c, 0x30, 0x23, 0x0f, 0xed, 0x07, 0x00, 0x60, + 0xf4, 0x6f, 0x11, 0x40, 0xaf, 0x51, 0xf0, 0xcd, + 0x0a, 0x06, 0x10, 0x00, 0x10, 0xa0, 0x10, 0x08, + 0x70, 0x00, 0x01, 0x00, 0x32, 0x20, 0x00, 0x40, + 0x21, 0x70, 0x00, 0x08, 0x40, 0x20, 0x01, 0x00, + 0x52, 0x90, 0xe8, 0x2e, 0xb3, 0xb2, 0xb2, 0xb2, + 0xb2, 0xb2, 0xb2, 0xb2, 0xb2, 0xb2, 0xb2, 0xb2, + 0xb2, 0xb2, 0xb2, 0xb2, 0xb2, 0xb2, 0xb2, 0xb2, + 0xb2, 0xb2, 0xb2, 0xb2, 0xb2, 0xb2, 0xb2, 0xb2, + 0xb2, 0xb2, 0xb2, 0xb2, 0xb2, 0xb2, 0xb2, 0xb2, + 0xb2, 0x02 + }; + + printf("\n==> %s (CS1)\n", __func__); + memset(&frame, 0, sizeof(frame)); + frame.u.pcu_data_ind.tav = 0; + frame.u.pcu_data_ind.ul_frame_err = false; + frame.u.pcu_data_ind.cs_hdr = CS_OR_HDR_CS1; + frame.u.pcu_data_ind.ul_chan_mode = ER_UL_CHMOD_NB_GMSK; + frame.u.pcu_data_ind.atten_db = 0x0f; + frame.u.pcu_data_ind.timing_offset = 0x01; + frame.type = ER_GPRS_TRAU_FT_DATA; + memcpy(frame.u.pcu_data_ind.data, data_cs1, sizeof(data_cs1)); + rc = er_gprs_trau_frame_encode_64k(trau_frame, &frame); + OSMO_ASSERT(rc == 1280); + dump_frame(trau_frame, ER_GPRS_TRAU_FRAME_LEN_64K); + + printf("\n==> %s (CS2)\n", __func__); + memset(&frame, 0, sizeof(frame)); + frame.u.pcu_data_ind.tav = 0; + frame.u.pcu_data_ind.ul_frame_err = false; + frame.u.pcu_data_ind.cs_hdr = CS_OR_HDR_CS2; + frame.u.pcu_data_ind.ul_chan_mode = ER_UL_CHMOD_NB_GMSK; + frame.u.pcu_data_ind.atten_db = 0x0f; + frame.u.pcu_data_ind.timing_offset = 0x01; + frame.type = ER_GPRS_TRAU_FT_DATA; + memcpy(frame.u.pcu_data_ind.data, data_cs2, sizeof(data_cs2)); + rc = er_gprs_trau_frame_encode_64k(trau_frame, &frame); + OSMO_ASSERT(rc == 1280); + dump_frame(trau_frame, ER_GPRS_TRAU_FRAME_LEN_64K); + + printf("\n==> %s (CS3)\n", __func__); + memset(&frame, 0, sizeof(frame)); + frame.u.pcu_data_ind.tav = 0; + frame.u.pcu_data_ind.ul_frame_err = false; + frame.u.pcu_data_ind.cs_hdr = CS_OR_HDR_CS3; + frame.u.pcu_data_ind.ul_chan_mode = ER_UL_CHMOD_NB_GMSK; + frame.u.pcu_data_ind.atten_db = 0x0f; + frame.u.pcu_data_ind.timing_offset = 0x01; + frame.type = ER_GPRS_TRAU_FT_DATA; + memcpy(frame.u.pcu_data_ind.data, data_cs3, sizeof(data_cs3)); + rc = er_gprs_trau_frame_encode_64k(trau_frame, &frame); + OSMO_ASSERT(rc == 1280); + dump_frame(trau_frame, ER_GPRS_TRAU_FRAME_LEN_64K); + + printf("\n==> %s (CS4)\n", __func__); + memset(&frame, 0, sizeof(frame)); + frame.u.pcu_data_ind.tav = 0; + frame.u.pcu_data_ind.ul_frame_err = false; + frame.u.pcu_data_ind.cs_hdr = CS_OR_HDR_CS4; + frame.u.pcu_data_ind.ul_chan_mode = ER_UL_CHMOD_NB_GMSK; + frame.u.pcu_data_ind.atten_db = 0x0f; + frame.u.pcu_data_ind.timing_offset = 0x01; + frame.type = ER_GPRS_TRAU_FT_DATA; + memcpy(frame.u.pcu_data_ind.data, data_cs4, sizeof(data_cs4)); + rc = er_gprs_trau_frame_encode_64k(trau_frame, &frame); + OSMO_ASSERT(rc == 1280); + dump_frame(trau_frame, ER_GPRS_TRAU_FRAME_LEN_64K); + + printf("\n==> %s (MCS1)\n", __func__); + memset(&frame, 0, sizeof(frame)); + frame.u.pcu_data_ind.tav = 0; + frame.u.pcu_data_ind.ul_frame_err = false; + frame.u.pcu_data_ind.cs_hdr = CS_OR_HDR_HDR3; + frame.u.pcu_data_ind.ul_chan_mode = ER_UL_CHMOD_NB_GMSK; + frame.u.pcu_data_ind.atten_db = 0x0f; + frame.u.pcu_data_ind.timing_offset = 0x01; + frame.type = ER_GPRS_TRAU_FT_DATA; + memcpy(frame.u.pcu_data_ind.data, data_mcs1, sizeof(data_mcs1)); + rc = er_gprs_trau_frame_encode_64k(trau_frame, &frame); + OSMO_ASSERT(rc == 1280); + dump_frame(trau_frame, ER_GPRS_TRAU_FRAME_LEN_64K); + + printf("\n==> %s (MCS2)\n", __func__); + memset(&frame, 0, sizeof(frame)); + frame.u.pcu_data_ind.tav = 0; + frame.u.pcu_data_ind.ul_frame_err = false; + frame.u.pcu_data_ind.cs_hdr = CS_OR_HDR_HDR3; + frame.u.pcu_data_ind.ul_chan_mode = ER_UL_CHMOD_NB_GMSK; + frame.u.pcu_data_ind.atten_db = 0x0f; + frame.u.pcu_data_ind.timing_offset = 0x01; + frame.type = ER_GPRS_TRAU_FT_DATA; + memcpy(frame.u.pcu_data_ind.data, data_mcs2, sizeof(data_mcs2)); + rc = er_gprs_trau_frame_encode_64k(trau_frame, &frame); + OSMO_ASSERT(rc == 1280); + dump_frame(trau_frame, ER_GPRS_TRAU_FRAME_LEN_64K); + + printf("\n==> %s (MCS3)\n", __func__); + memset(&frame, 0, sizeof(frame)); + frame.u.pcu_data_ind.tav = 0; + frame.u.pcu_data_ind.ul_frame_err = false; + frame.u.pcu_data_ind.cs_hdr = CS_OR_HDR_HDR3; + frame.u.pcu_data_ind.ul_chan_mode = ER_UL_CHMOD_NB_GMSK; + frame.u.pcu_data_ind.atten_db = 0x0f; + frame.u.pcu_data_ind.timing_offset = 0x01; + frame.type = ER_GPRS_TRAU_FT_DATA; + memcpy(frame.u.pcu_data_ind.data, data_mcs3, sizeof(data_mcs3)); + rc = er_gprs_trau_frame_encode_64k(trau_frame, &frame); + OSMO_ASSERT(rc == 1280); + dump_frame(trau_frame, ER_GPRS_TRAU_FRAME_LEN_64K); + + printf("\n==> %s (MCS4)\n", __func__); + memset(&frame, 0, sizeof(frame)); + frame.u.pcu_data_ind.tav = 0; + frame.u.pcu_data_ind.ul_frame_err = false; + frame.u.pcu_data_ind.cs_hdr = CS_OR_HDR_HDR3; + frame.u.pcu_data_ind.ul_chan_mode = ER_UL_CHMOD_NB_GMSK; + frame.u.pcu_data_ind.atten_db = 0x0f; + frame.u.pcu_data_ind.timing_offset = 0x01; + frame.type = ER_GPRS_TRAU_FT_DATA; + memcpy(frame.u.pcu_data_ind.data, data_mcs4, sizeof(data_mcs4)); + rc = er_gprs_trau_frame_encode_64k(trau_frame, &frame); + OSMO_ASSERT(rc == 1280); + dump_frame(trau_frame, ER_GPRS_TRAU_FRAME_LEN_64K); + + printf("\n==> %s (MCS5)\n", __func__); + memset(&frame, 0, sizeof(frame)); + frame.u.pcu_data_ind.tav = 0; + frame.u.pcu_data_ind.ul_frame_err = false; + frame.u.pcu_data_ind.cs_hdr = CS_OR_HDR_HDR2; + frame.u.pcu_data_ind.ul_chan_mode = ER_UL_CHMOD_NB_GMSK; + frame.u.pcu_data_ind.atten_db = 0x0f; + frame.u.pcu_data_ind.timing_offset = 0x01; + frame.type = ER_GPRS_TRAU_FT_DATA; + memcpy(frame.u.pcu_data_ind.data, data_mcs5, sizeof(data_mcs5)); + rc = er_gprs_trau_frame_encode_64k(trau_frame, &frame); + OSMO_ASSERT(rc == 1280); + dump_frame(trau_frame, ER_GPRS_TRAU_FRAME_LEN_64K); + + printf("\n==> %s (MCS6)\n", __func__); + memset(&frame, 0, sizeof(frame)); + frame.u.pcu_data_ind.tav = 0; + frame.u.pcu_data_ind.ul_frame_err = false; + frame.u.pcu_data_ind.cs_hdr = CS_OR_HDR_HDR2; + frame.u.pcu_data_ind.ul_chan_mode = ER_UL_CHMOD_NB_GMSK; + frame.u.pcu_data_ind.atten_db = 0x0f; + frame.u.pcu_data_ind.timing_offset = 0x01; + frame.type = ER_GPRS_TRAU_FT_DATA; + memcpy(frame.u.pcu_data_ind.data, data_mcs6, sizeof(data_mcs6)); + rc = er_gprs_trau_frame_encode_64k(trau_frame, &frame); + OSMO_ASSERT(rc == 1280); + dump_frame(trau_frame, ER_GPRS_TRAU_FRAME_LEN_64K); + + printf("\n==> %s (MCS7)\n", __func__); + memset(&frame, 0, sizeof(frame)); + frame.u.pcu_data_ind.tav = 0; + frame.u.pcu_data_ind.ul_frame_err = false; + frame.u.pcu_data_ind.cs_hdr = CS_OR_HDR_HDR1; + frame.u.pcu_data_ind.ul_chan_mode = ER_UL_CHMOD_NB_GMSK; + frame.u.pcu_data_ind.atten_db = 0x0f; + frame.u.pcu_data_ind.timing_offset = 0x01; + frame.type = ER_GPRS_TRAU_FT_DATA; + memcpy(frame.u.pcu_data_ind.data, data_mcs7, sizeof(data_mcs7)); + rc = er_gprs_trau_frame_encode_64k(trau_frame, &frame); + OSMO_ASSERT(rc == 1280); + dump_frame(trau_frame, ER_GPRS_TRAU_FRAME_LEN_64K); + + printf("\n==> %s (MCS8)\n", __func__); + memset(&frame, 0, sizeof(frame)); + frame.u.pcu_data_ind.tav = 0; + frame.u.pcu_data_ind.ul_frame_err = false; + frame.u.pcu_data_ind.cs_hdr = CS_OR_HDR_HDR1; + frame.u.pcu_data_ind.ul_chan_mode = ER_UL_CHMOD_NB_GMSK; + frame.u.pcu_data_ind.atten_db = 0x0f; + frame.u.pcu_data_ind.timing_offset = 0x01; + frame.type = ER_GPRS_TRAU_FT_DATA; + memcpy(frame.u.pcu_data_ind.data, data_mcs8, sizeof(data_mcs8)); + rc = er_gprs_trau_frame_encode_64k(trau_frame, &frame); + OSMO_ASSERT(rc == 1280); + dump_frame(trau_frame, ER_GPRS_TRAU_FRAME_LEN_64K); + + printf("\n==> %s (MCS9)\n", __func__); + memset(&frame, 0, sizeof(frame)); + frame.u.pcu_data_ind.tav = 0; + frame.u.pcu_data_ind.ul_frame_err = false; + frame.u.pcu_data_ind.cs_hdr = CS_OR_HDR_HDR1; + frame.u.pcu_data_ind.ul_chan_mode = ER_UL_CHMOD_NB_GMSK; + frame.u.pcu_data_ind.atten_db = 0x0f; + frame.u.pcu_data_ind.timing_offset = 0x01; + frame.type = ER_GPRS_TRAU_FT_DATA; + memcpy(frame.u.pcu_data_ind.data, data_mcs9, sizeof(data_mcs9)); + rc = er_gprs_trau_frame_encode_64k(trau_frame, &frame); + OSMO_ASSERT(rc == 1280); + dump_frame(trau_frame, ER_GPRS_TRAU_FRAME_LEN_64K); + +} + +void er_gprs_trau_frame_decode_64k_FT_SYNC_test(void) +{ + int rc; + struct er_gprs_trau_frame frame; + + /* TRAU frame as received from BTS when no PCU-SYNC-IND was sent yet. + * The PSEQ value is not yet available */ + const ubit_t bits_1[] = { + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 1, 0, 1, 0, 1, 0, 0, + 1, 1, 1, 0, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 0, 1, 0, 1, 0, 0, + 1, 1, 1, 1, 0, 0, 0, 0, + 0, 1, 1, 0, 1, 0, 0, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 0, 1, 0, 1, 0, 0, + 1, 1, 1, 1, 0, 0, 0, 0, + 0, 1, 1, 0, 0, 0, 1, 0, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + }; + + /* TRAU frame as received from BTS after a few PCU-SYNC-IND frames + * were sent. The PSEQ value is now known to the BTS. */ + const ubit_t bits_2[] = { + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 1, 0, 1, 0, 1, 0, 0, + 0, 0, 1, 0, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 1, + 1, 0, 0, 0, 0, 1, 0, 0, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 0, 0, 1, 0, 0, 1, + 0, 0, 1, 0, 1, 0, 1, 1, + 1, 0, 1, 0, 1, 1, 1, 0, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 0, 0, 1, 0, 0, 1, + 0, 0, 1, 0, 1, 0, 1, 1, + 1, 0, 1, 0, 0, 1, 1, 0, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + }; + + printf("\n==> %s (not yet synced)\n", __func__); + rc = er_gprs_trau_frame_decode_64k(&frame, bits_1); + OSMO_ASSERT(rc == 0); + OSMO_ASSERT(frame.type == ER_GPRS_TRAU_FT_SYNC); + printf(" ccu_sync_ind.tav=%02x\n", frame.u.ccu_sync_ind.tav); + printf(" ccu_sync_ind.dfe=%02x\n", frame.u.ccu_sync_ind.dfe); + printf(" ccu_sync_ind.dbe=%02x\n", frame.u.ccu_sync_ind.dbe); + printf(" ccu_sync_ind.pseq=%u\n", frame.u.ccu_sync_ind.pseq); + printf(" ccu_sync_ind.afn_ul=%u\n", frame.u.ccu_sync_ind.afn_ul); + printf(" ccu_sync_ind.afn_dl=%u\n", frame.u.ccu_sync_ind.afn_dl); + + printf("\n==> %s (synced)\n", __func__); + rc = er_gprs_trau_frame_decode_64k(&frame, bits_2); + OSMO_ASSERT(rc == 0); + OSMO_ASSERT(frame.type == ER_GPRS_TRAU_FT_SYNC); + printf(" ccu_sync_ind.tav=%02x\n", frame.u.ccu_sync_ind.tav); + printf(" ccu_sync_ind.dfe=%02x\n", frame.u.ccu_sync_ind.dfe); + printf(" ccu_sync_ind.dbe=%02x\n", frame.u.ccu_sync_ind.dbe); + printf(" ccu_sync_ind.pseq=%u\n", frame.u.ccu_sync_ind.pseq); + printf(" ccu_sync_ind.afn_ul=%u\n", frame.u.ccu_sync_ind.afn_ul); + printf(" ccu_sync_ind.afn_dl=%u\n", frame.u.ccu_sync_ind.afn_dl); +} + +void er_gprs_trau_frame_decode_64k_FT_DATA_test(void) +{ + int rc; + struct er_gprs_trau_frame frame; + + /* TRAU frame with CS1 block and correct CRC. CS1 one data itsself is + * noise. */ + const ubit_t bits_cs1[] = { + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 0, 1, 0, 1, 1, 0, 0, + 0, 1, 0, 0, 1, 0, 0, 0, + 0, 0, 0, 1, 0, 1, 1, 1, + 1, 0, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 0, 1, 1, 1, 1, 0, + 1, 1, 1, 0, 1, 1, 1, 0, + 1, 0, 1, 0, 0, 1, 1, 1, + 1, 0, 1, 0, 0, 0, 1, 0, + 1, 0, 0, 1, 1, 0, 0, 1, + 1, 1, 1, 1, 0, 0, 0, 1, + 1, 0, 1, 0, 1, 1, 1, 0, + 0, 0, 1, 1, 0, 1, 0, 1, + 1, 0, 1, 1, 0, 0, 0, 1, + 1, 1, 1, 1, 1, 0, 0, 0, + 0, 0, 1, 1, 0, 1, 0, 1, + 1, 0, 0, 1, 1, 1, 0, 1, + 1, 1, 1, 0, 0, 1, 1, 1, + 0, 1, 1, 1, 0, 0, 1, 0, + 1, 1, 1, 0, 0, 1, 1, 0, + 0, 1, 1, 1, 1, 1, 1, 1, + 0, 0, 0, 0, 0, 0, 0, 1, + 1, 0, 1, 0, 1, 0, 1, 0, + 0, 1, 1, 0, 1, 1, 0, 1, + 1, 0, 0, 0, 1, 1, 0, 0, + 0, 1, 1, 1, 1, 0, 0, 0, + 1, 1, 1, 0, 0, 0, 0, 1, + 0, 0, 0, 0, 0, 0, 0, 1, + 1, 0, 0, 1, 1, 1, 0, 0, + 0, 0, 1, 1, 0, 1, 0, 1, + 0, 0, 0, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + }; + + const ubit_t bits_cs2[] = { + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 0, 1, 0, 1, 1, 1, 0, + 1, 1, 0, 1, 0, 0, 0, 0, + 0, 0, 0, 1, 1, 0, 1, 0, + 1, 0, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 0, 0, 1, 1, 1, 1, 0, 1, + 1, 1, 1, 0, 1, 1, 1, 1, + 1, 0, 1, 0, 0, 0, 0, 1, + 0, 1, 0, 1, 1, 0, 0, 0, + 0, 0, 0, 1, 0, 0, 0, 0, + 0, 1, 0, 0, 0, 0, 1, 0, + 1, 1, 0, 0, 1, 1, 1, 0, + 1, 0, 1, 0, 0, 0, 0, 0, + 0, 1, 0, 1, 0, 1, 1, 1, + 0, 1, 0, 0, 1, 1, 1, 1, + 1, 0, 0, 0, 0, 0, 0, 0, + 1, 1, 0, 0, 1, 0, 0, 1, + 1, 0, 1, 1, 0, 1, 0, 1, + 0, 0, 1, 0, 0, 1, 1, 0, + 0, 0, 0, 1, 0, 1, 0, 1, + 0, 0, 1, 0, 0, 0, 0, 0, + 1, 0, 0, 1, 0, 0, 1, 0, + 0, 0, 0, 1, 1, 0, 1, 1, + 0, 0, 0, 1, 1, 1, 0, 0, + 1, 0, 0, 0, 1, 1, 0, 0, + 0, 0, 1, 1, 1, 0, 0, 0, + 0, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 0, 1, 0, 0, + 0, 1, 1, 1, 1, 1, 1, 0, + 1, 0, 0, 1, 1, 1, 0, 1, + 1, 0, 0, 1, 0, 1, 1, 1, + 0, 0, 0, 1, 1, 0, 1, 1, + 0, 1, 0, 0, 0, 1, 1, 1, + 0, 1, 0, 0, 1, 1, 1, 1, + 0, 1, 0, 1, 0, 0, 1, 0, + 0, 1, 1, 1, 0, 1, 1, 1, + 0, 0, 0, 0, 0, 0, 1, 0, + 1, 0, 0, 1, 1, 0, 1, 1, + 1, 1, 1, 1, 0, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + /* [...] shortened since decode won't access filler bits after + * the TRAU frame. */ + }; + + /* TRAU frame with AB data (noise). */ + const ubit_t bits_ab[] = { + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 0, 1, 0, 1, 1, 1, 0, + 1, 1, 0, 0, 0, 1, 1, 1, + 1, 1, 1, 1, 1, 0, 0, 0, + 0, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 0, 0, 0, 0, 0, 1, 1, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 0, 0, + 1, 1, 1, 1, 1, 1, 0, 0, + 0, 0, 0, 1, 0, 0, 0, 0, + 1, 1, 1, 1, 1, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 1, 1, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 0, 0, + 1, 1, 1, 1, 1, 1, 0, 0, + 0, 0, 1, 1, 1, 0, 1, 0, + 1, 1, 1, 1, 1, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 1, 1, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 0, 0, + 1, 1, 1, 1, 1, 1, 0, 0, + 0, 0, 0, 1, 0, 0, 1, 1, + 1, 1, 1, 1, 1, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 1, 1, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 0, 0, + 1, 1, 1, 1, 1, 1, 0, 0, + 0, 0, 1, 1, 1, 0, 1, 1, + 1, 1, 1, 1, 1, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + /* [...] shortened since decode won't access filler bits after + * the TRAU frame. */ + }; + + printf("\n==> %s (CS1)\n", __func__); + rc = er_gprs_trau_frame_decode_64k(&frame, bits_cs1); + OSMO_ASSERT(rc == 0); + OSMO_ASSERT(frame.type == ER_GPRS_TRAU_FT_DATA); + printf(" ccu_data_ind.tav=%02x\n", frame.u.ccu_data_ind.tav); + printf(" ccu_data_ind.dbe=%u\n", frame.u.ccu_data_ind.dbe); + printf(" ccu_data_ind.cs_hdr=%u\n", frame.u.ccu_data_ind.cs_hdr); + printf(" ccu_data_ind.gprs.rx_lev=%u\n", frame.u.ccu_data_ind.rx_lev); + printf(" ccu_data_ind.gprs.est_acc_del_dev=%d\n", frame.u.ccu_data_ind.est_acc_del_dev); + printf(" ccu_data_ind.u.gprs.block_qual=%u\n", frame.u.ccu_data_ind.u.gprs.block_qual); + printf(" ccu_data_ind.u.gprs.parity_ok=%u\n", frame.u.ccu_data_ind.u.gprs.parity_ok); + printf(" ccu_data_ind.u.data_len=%u\n", frame.u.ccu_data_ind.data_len); + printf(" ccu_data_ind.data=%s\n", osmo_hexdump_nospc(frame.u.ccu_data_ind.data, frame.u.ccu_data_ind.data_len)); + + printf("\n==> %s (CS2)\n", __func__); + rc = er_gprs_trau_frame_decode_64k(&frame, bits_cs2); + OSMO_ASSERT(rc == 0); + OSMO_ASSERT(frame.type == ER_GPRS_TRAU_FT_DATA); + printf(" ccu_data_ind.tav=%02x\n", frame.u.ccu_data_ind.tav); + printf(" ccu_data_ind.dbe=%u\n", frame.u.ccu_data_ind.dbe); + printf(" ccu_data_ind.cs_hdr=%u\n", frame.u.ccu_data_ind.cs_hdr); + printf(" ccu_data_ind.gprs.rx_lev=%u\n", frame.u.ccu_data_ind.rx_lev); + printf(" ccu_data_ind.gprs.est_acc_del_dev=%d\n", frame.u.ccu_data_ind.est_acc_del_dev); + printf(" ccu_data_ind.u.gprs.block_qual=%u\n", frame.u.ccu_data_ind.u.gprs.block_qual); + printf(" ccu_data_ind.u.gprs.parity_ok=%u\n", frame.u.ccu_data_ind.u.gprs.parity_ok); + printf(" ccu_data_ind.u.data_len=%u\n", frame.u.ccu_data_ind.data_len); + printf(" ccu_data_ind.data=%s\n", osmo_hexdump_nospc(frame.u.ccu_data_ind.data, frame.u.ccu_data_ind.data_len)); + + printf("\n==> %s (AB)\n", __func__); + rc = er_gprs_trau_frame_decode_64k(&frame, bits_ab); + OSMO_ASSERT(rc == 0); + OSMO_ASSERT(frame.type == ER_GPRS_TRAU_FT_DATA); + printf(" ccu_data_ind.tav=%02x\n", frame.u.ccu_data_ind.tav); + printf(" ccu_data_ind.dbe=%u\n", frame.u.ccu_data_ind.dbe); + printf(" ccu_data_ind.cs_hdr=%u\n", frame.u.ccu_data_ind.cs_hdr); + printf(" ccu_data_ind.gprs.rx_lev=%u\n", frame.u.ccu_data_ind.rx_lev); + printf(" ccu_data_ind.gprs.est_acc_del_dev=%d\n", frame.u.ccu_data_ind.est_acc_del_dev); + printf(" ccu_data_ind.u.gprs.block_qual=%u\n", frame.u.ccu_data_ind.u.gprs.block_qual); + printf(" ccu_data_ind.u.gprs.parity_ok=%u\n", frame.u.ccu_data_ind.u.gprs.parity_ok); + printf(" ccu_data_ind.u.data_len=%u\n", frame.u.ccu_data_ind.data_len); + printf(" ccu_data_ind.data=%s\n", osmo_hexdump_nospc(frame.u.ccu_data_ind.data, frame.u.ccu_data_ind.data_len)); + printf(" ccu_data_ind.ab[0]=\n"); + dump_ab(&frame.u.ccu_data_ind.ab[0]); + printf(" ccu_data_ind.ab[1]=\n"); + dump_ab(&frame.u.ccu_data_ind.ab[1]); + printf(" ccu_data_ind.ab[2]=\n"); + dump_ab(&frame.u.ccu_data_ind.ab[2]); + printf(" ccu_data_ind.ab[3]=\n"); + dump_ab(&frame.u.ccu_data_ind.ab[3]); +} + +static void test_body(void) +{ + er_gprs_trau_frame_encode_16k_FT_SYNC_test(); + er_gprs_trau_frame_encode_16k_FT_DATA_test(); + er_gprs_trau_frame_decode_16k_FT_SYNC_test(); + er_gprs_trau_frame_decode_16k_FT_DATA_test(); + + er_gprs_trau_frame_encode_64k_FT_SYNC_test(); + er_gprs_trau_frame_encode_64k_FT_DATA_test(); + er_gprs_trau_frame_decode_64k_FT_SYNC_test(); + er_gprs_trau_frame_decode_64k_FT_DATA_test(); +} + +static const struct log_info_cat default_categories[] = { +}; + +const struct log_info log_info = { + .cat = default_categories, + .num_cat = ARRAY_SIZE(default_categories), +}; + +int main(int argc, char **argv) +{ + osmo_init_logging2(NULL, NULL); + log_set_use_color(osmo_stderr_target, 0); + log_set_print_filename2(osmo_stderr_target, LOG_FILENAME_NONE); + log_set_print_category(osmo_stderr_target, 0); + log_set_print_category_hex(osmo_stderr_target, 0); + log_set_log_level(osmo_stderr_target, LOGL_INFO); + test_body(); +} diff --git a/tests/trau_pcu_ericsson/trau_pcu_ericsson_test.ok b/tests/trau_pcu_ericsson/trau_pcu_ericsson_test.ok new file mode 100644 index 0000000..6d93eed --- /dev/null +++ b/tests/trau_pcu_ericsson/trau_pcu_ericsson_test.ok @@ -0,0 +1,2579 @@ + +==> er_gprs_trau_frame_encode_16k_FT_SYNC_test + 0 0 0 0 0 0 0 0 + 0 0 0 0 0 0 0 0 + 1 1 1 1 1 0 0 0 + 1 0 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 0 0 0 0 0 0 0 + 1 0 0 0 0 1 0 0 + 1 1 0 1 0 0 1 0 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 + +==> er_gprs_trau_frame_encode_16k_FT_DATA_test (CS1) + 0 0 0 0 0 0 0 0 + 0 0 0 0 0 0 0 0 + 1 0 1 0 1 1 0 0 + 1 1 0 0 0 0 0 0 + 0 0 0 0 0 1 0 0 + 0 1 1 1 1 1 0 0 + 0 0 0 0 0 0 0 0 + 0 0 0 1 0 1 0 0 + 0 0 0 1 0 0 0 0 + 0 0 0 0 0 0 0 0 + 0 1 1 1 0 1 0 0 + 0 0 0 0 0 0 1 0 + 0 0 0 0 1 0 0 0 + 0 0 0 1 0 0 0 0 + 0 0 0 0 1 0 1 0 + 1 0 0 0 0 1 0 0 + 0 1 0 0 0 0 0 0 + 0 0 0 1 0 0 0 1 + 1 1 1 0 0 0 0 1 + 0 0 0 1 1 0 0 0 + 1 0 0 0 1 1 1 0 + 1 1 0 0 0 0 0 0 + 0 0 0 1 1 1 0 1 + 0 0 0 0 1 1 0 1 + 0 0 0 0 0 0 1 1 + 0 0 0 1 0 1 0 0 + 0 0 0 0 0 1 0 1 + 1 1 1 1 0 1 0 1 + 1 1 1 0 1 1 0 0 + 1 0 1 0 1 1 1 0 + 0 0 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 + +==> er_gprs_trau_frame_encode_16k_FT_DATA_test (CS2) + 0 0 0 0 0 0 0 0 + 0 0 0 0 0 0 0 0 + 1 0 1 0 1 1 0 0 + 1 1 0 1 0 0 1 0 + 0 0 0 0 0 0 1 0 + 0 0 0 1 1 1 1 0 + 0 0 0 0 0 0 0 0 + 0 0 0 0 0 0 1 0 + 0 0 0 1 0 0 1 0 + 1 1 0 1 0 0 0 0 + 0 0 0 0 0 0 0 0 + 0 1 1 1 0 0 1 0 + 0 0 0 0 0 0 1 0 + 0 0 0 0 1 0 0 0 + 0 0 0 1 0 0 0 0 + 0 0 0 0 1 0 1 0 + 1 0 0 0 0 1 0 0 + 0 1 0 0 0 0 0 0 + 0 0 0 1 0 0 0 1 + 1 1 1 0 0 0 0 1 + 0 0 0 1 1 0 0 0 + 1 0 0 0 1 1 1 0 + 1 1 0 0 0 0 0 0 + 0 0 0 1 1 1 0 1 + 0 0 0 0 1 1 0 1 + 0 0 0 0 0 0 1 1 + 0 0 0 1 0 1 0 0 + 0 0 0 0 0 1 0 1 + 1 1 1 1 0 0 1 1 + 0 1 1 1 0 0 0 0 + 1 0 1 0 1 0 0 0 + 0 0 1 1 0 1 1 1 + 0 1 1 0 1 1 0 1 + 0 1 1 0 1 1 1 0 + 1 1 1 0 1 0 1 0 + 1 0 1 1 1 0 1 0 + 1 0 0 1 1 0 1 0 + 1 0 0 1 1 0 1 0 + 1 0 0 0 0 0 0 0 + 0 0 1 1 1 1 1 1 + 1 1 1 1 + +==> er_gprs_trau_frame_decode_16k_FT_SYNC_test (not yet synced) + ccu_sync_ind.tav=00 + ccu_sync_ind.dfe=00 + ccu_sync_ind.dbe=00 + ccu_sync_ind.pseq=4194303 + ccu_sync_ind.afn_ul=770937 + ccu_sync_ind.afn_dl=770930 + +==> er_gprs_trau_frame_decode_16k_FT_SYNC_test (synced) + ccu_sync_ind.tav=01 + ccu_sync_ind.dfe=01 + ccu_sync_ind.dbe=00 + ccu_sync_ind.pseq=489 + ccu_sync_ind.afn_ul=1507383 + ccu_sync_ind.afn_dl=1507376 + +==> er_gprs_trau_frame_decode_16k_FT_DATA_test (CS1) + ccu_data_ind.tav=00 + ccu_data_ind.dbe=0 + ccu_data_ind.cs_hdr=1 + ccu_data_ind.gprs.rx_lev=63 + ccu_data_ind.gprs.est_acc_del_dev=0 + ccu_data_ind.u.gprs.block_qual=0 + ccu_data_ind.u.gprs.parity_ok=1 + ccu_data_ind.u.data_len=23 + ccu_data_ind.data=110315e27819cd4552054000401117e8c0a80003080808 + +==> er_gprs_trau_frame_decode_16k_FT_DATA_test (CS2) + ccu_data_ind.tav=00 + ccu_data_ind.dbe=0 + ccu_data_ind.cs_hdr=2 + ccu_data_ind.gprs.rx_lev=63 + ccu_data_ind.gprs.est_acc_del_dev=0 + ccu_data_ind.u.gprs.block_qual=0 + ccu_data_ind.u.gprs.parity_ok=1 + ccu_data_ind.u.data_len=34 + ccu_data_ind.data=00010449eb20fe38676f6f676c6503636f6d00000100019ab9f92b2b2b2b2b2b2b00 + +==> er_gprs_trau_frame_decode_16k_FT_DATA_test (AB) + ccu_data_ind.tav=00 + ccu_data_ind.dbe=0 + ccu_data_ind.cs_hdr=0 + ccu_data_ind.gprs.rx_lev=63 + ccu_data_ind.gprs.est_acc_del_dev=0 + ccu_data_ind.u.gprs.block_qual=0 + ccu_data_ind.u.gprs.parity_ok=1 + ccu_data_ind.u.data_len=32 + ccu_data_ind.data=6000ff3f3fb81f006000ff3f3f181f006000ff3f3f981f006000ff3f3ff41f00 + ccu_data_ind.ab[0]= + ab->ab_type=2 + ab->rxlev=0 + ab->acc_delay=184 + ab->data=0000 + ab->u.type_2.abi=3 + ab->u.type_2.type=0 + ccu_data_ind.ab[1]= + ab->ab_type=2 + ab->rxlev=0 + ab->acc_delay=24 + ab->data=0000 + ab->u.type_2.abi=3 + ab->u.type_2.type=0 + ccu_data_ind.ab[2]= + ab->ab_type=2 + ab->rxlev=0 + ab->acc_delay=152 + ab->data=0000 + ab->u.type_2.abi=3 + ab->u.type_2.type=0 + ccu_data_ind.ab[3]= + ab->ab_type=2 + ab->rxlev=0 + ab->acc_delay=244 + ab->data=0000 + ab->u.type_2.abi=3 + ab->u.type_2.type=0 + +==> er_gprs_trau_frame_encode_64k_FT_SYNC_test + 0 0 0 0 0 0 0 0 + 0 0 0 0 0 0 0 0 + 0 0 0 0 0 0 0 0 + 0 0 0 0 0 0 0 0 + 0 0 0 0 0 0 0 0 + 0 0 0 0 0 0 0 0 + 0 0 0 0 0 0 0 0 + 0 0 0 0 0 0 0 0 + 1 1 1 1 1 0 0 0 + 1 1 0 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 0 0 0 0 0 0 + 0 0 0 0 0 1 0 0 + 1 1 0 1 0 0 1 0 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 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er_gprs_trau_frame_encode_64k_FT_DATA_test (MCS8) + 0 0 0 0 0 0 0 0 + 0 0 0 0 0 0 0 0 + 0 0 0 0 0 0 0 0 + 0 0 0 0 0 0 0 0 + 0 0 0 0 0 0 0 0 + 0 0 0 0 0 0 0 0 + 0 0 0 0 0 0 0 0 + 0 0 0 0 0 0 0 0 + 1 0 1 0 1 1 0 0 + 1 1 1 0 1 0 0 1 + 0 0 0 0 0 0 0 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 1 0 + 0 0 0 0 0 0 0 0 + 0 0 0 0 0 0 0 0 + 0 0 0 0 0 1 0 0 + 0 0 0 0 0 0 0 1 + 1 0 1 0 1 0 1 0 + 0 0 0 0 0 0 0 0 + 0 0 0 0 1 1 1 0 + 0 1 0 0 0 0 0 1 + 0 1 0 0 0 1 0 1 + 0 0 0 0 1 0 1 1 + 0 0 0 0 0 0 0 1 + 1 1 0 0 0 0 1 1 + 0 0 0 1 0 0 0 1 + 0 0 0 1 1 0 1 1 + 1 1 1 0 0 0 0 1 + 0 0 1 1 1 0 1 0 + 0 1 1 0 0 1 1 1 + 1 1 1 1 0 0 1 1 + 1 1 1 1 0 0 1 0 + 0 0 1 0 0 0 1 1 + 0 0 0 0 1 0 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 0 0 + 0 0 0 0 0 0 0 0 + 0 0 0 0 0 0 0 0 + 0 0 0 0 0 0 0 0 + 1 0 0 0 0 0 1 1 + 0 1 0 1 0 0 0 1 + 1 0 0 0 0 0 1 0 + 0 0 0 0 0 0 1 0 + 0 0 0 1 0 0 0 0 + 0 0 0 0 1 1 0 0 + 0 1 0 1 0 1 0 0 + 0 0 0 0 0 0 1 0 + 1 0 0 0 0 0 1 1 + 1 0 0 1 0 0 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er_gprs_trau_frame_encode_64k_FT_DATA_test (MCS9) + 0 0 0 0 0 0 0 0 + 0 0 0 0 0 0 0 0 + 1 1 1 1 0 0 0 0 + 0 0 0 0 0 0 0 0 + 0 0 0 0 0 0 0 0 + 0 0 1 0 0 0 0 0 + 0 0 0 0 1 0 1 0 + 0 0 0 1 1 0 1 0 + 0 0 0 1 0 0 0 0 + 1 1 0 0 1 1 1 1 + 1 1 1 0 0 1 1 0 + 0 0 0 0 0 0 0 0 + 0 0 0 0 1 1 1 0 + 0 1 0 0 0 0 0 1 + 0 1 0 0 0 1 0 1 + 0 0 0 0 1 0 1 1 + 0 0 0 0 0 0 0 1 + 1 1 0 0 0 0 1 1 + 0 0 0 1 0 0 0 1 + 0 0 0 1 1 0 1 1 + 1 1 1 0 0 0 0 1 + 0 0 1 1 1 0 1 0 + 0 1 1 0 0 1 1 1 + 1 1 1 1 0 0 1 1 + 1 1 1 1 0 0 1 0 + 0 0 1 0 0 0 1 1 + 0 0 0 0 1 0 1 1 + 1 1 1 1 1 1 1 1 + 1 1 1 1 1 1 0 0 + 0 0 0 0 0 0 0 0 + 0 0 0 0 0 0 0 0 + 0 0 0 0 0 0 0 0 + 1 0 0 0 0 0 1 1 + 0 1 0 1 0 0 0 1 + 1 0 0 0 0 0 1 0 + 0 0 0 0 0 0 1 0 + 0 0 0 1 0 0 0 0 + 0 0 0 0 1 1 0 0 + 0 1 0 1 0 1 0 0 + 0 0 0 0 0 0 1 0 + 1 0 0 0 0 0 1 1 + 1 0 0 1 0 0 0 1 + 0 0 0 1 0 0 0 0 + 0 0 0 0 0 1 0 0 + 0 0 0 0 0 1 1 0 + 0 0 0 1 0 0 0 0 + 0 0 1 0 0 0 0 1 + 0 0 0 0 0 0 0 0 + 0 0 0 0 0 0 0 0 + 0 0 0 0 0 0 0 0 + 0 0 1 0 0 0 1 0 + 0 0 0 0 0 1 0 1 + 1 0 0 0 0 0 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er_gprs_trau_frame_decode_64k_FT_SYNC_test (not yet synced) + ccu_sync_ind.tav=00 + ccu_sync_ind.dfe=00 + ccu_sync_ind.dbe=00 + ccu_sync_ind.pseq=4194303 + ccu_sync_ind.afn_ul=1372265 + ccu_sync_ind.afn_dl=1372258 + +==> er_gprs_trau_frame_decode_64k_FT_SYNC_test (synced) + ccu_sync_ind.tav=00 + ccu_sync_ind.dfe=01 + ccu_sync_ind.dbe=00 + ccu_sync_ind.pseq=388 + ccu_sync_ind.afn_ul=601006 + ccu_sync_ind.afn_dl=600998 + +==> er_gprs_trau_frame_decode_64k_FT_DATA_test (CS1) + ccu_data_ind.tav=00 + ccu_data_ind.dbe=0 + ccu_data_ind.cs_hdr=1 + ccu_data_ind.gprs.rx_lev=0 + ccu_data_ind.gprs.est_acc_del_dev=3 + ccu_data_ind.u.gprs.block_qual=7 + ccu_data_ind.u.gprs.parity_ok=0 + ccu_data_ind.u.data_len=23 + ccu_data_ind.data=dd9517653ed6b1367eb0e69e3b9df90356d9c6781c02e6 + +==> er_gprs_trau_frame_decode_64k_FT_DATA_test (CS2) + ccu_data_ind.tav=01 + ccu_data_ind.dbe=0 + ccu_data_ind.cs_hdr=2 + ccu_data_ind.gprs.rx_lev=0 + ccu_data_ind.gprs.est_acc_del_dev=0 + ccu_data_ind.u.gprs.block_qual=5 + ccu_data_ind.u.gprs.parity_ok=0 + ccu_data_ind.u.data_len=34 + ccu_data_ind.data=f3de176a2008cd15a8cb074cb692a1122461e3c470f8bff8e5a6638bcb2bb903653f + +==> er_gprs_trau_frame_decode_64k_FT_DATA_test (AB) + ccu_data_ind.tav=01 + ccu_data_ind.dbe=0 + ccu_data_ind.cs_hdr=0 + ccu_data_ind.gprs.rx_lev=63 + ccu_data_ind.gprs.est_acc_del_dev=0 + ccu_data_ind.u.gprs.block_qual=7 + ccu_data_ind.u.gprs.parity_ok=0 + ccu_data_ind.u.data_len=32 + ccu_data_ind.data=6000ff3f3f081f006000ff3f3f5c1f006000ff3f3fc81f006000ff3f3fdc1f00 + ccu_data_ind.ab[0]= + ab->ab_type=2 + ab->rxlev=0 + ab->acc_delay=8 + ab->data=0000 + ab->u.type_2.abi=3 + ab->u.type_2.type=0 + ccu_data_ind.ab[1]= + ab->ab_type=2 + ab->rxlev=0 + ab->acc_delay=92 + ab->data=0000 + ab->u.type_2.abi=3 + ab->u.type_2.type=0 + ccu_data_ind.ab[2]= + ab->ab_type=2 + ab->rxlev=0 + ab->acc_delay=200 + ab->data=0000 + ab->u.type_2.abi=3 + ab->u.type_2.type=0 + ccu_data_ind.ab[3]= + ab->ab_type=2 + ab->rxlev=0 + ab->acc_delay=220 + ab->data=0000 + ab->u.type_2.abi=3 + ab->u.type_2.type=0 -- To view, visit https://gerrit.osmocom.org/c/libosmo-abis/+/30717 To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: libosmo-abis Gerrit-Branch: master Gerrit-Change-Id: Ib2b232a76588c32cde75b987a7e5fdfddf099cd7 Gerrit-Change-Number: 30717 Gerrit-PatchSet: 6 Gerrit-Owner: dexter <pmaier(a)sysmocom.de> Gerrit-Reviewer: Jenkins Builder Gerrit-Reviewer: laforge <laforge(a)osmocom.org> Gerrit-Reviewer: pespin <pespin(a)sysmocom.de> Gerrit-CC: msuraev <msuraev(a)sysmocom.de> Gerrit-MessageType: merged

2 years, 5 months

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Change in libosmo-abis[master]: GPRS Trau frame encoder/decoder for Ericsson RBS

by laforge

Attention is currently required from: msuraev, dexter. laforge has posted comments on this change. ( https://gerrit.osmocom.org/c/libosmo-abis/+/30717 ) Change subject: GPRS Trau frame encoder/decoder for Ericsson RBS ...................................................................... Patch Set 6: Code-Review+2 -- To view, visit https://gerrit.osmocom.org/c/libosmo-abis/+/30717 To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: libosmo-abis Gerrit-Branch: master Gerrit-Change-Id: Ib2b232a76588c32cde75b987a7e5fdfddf099cd7 Gerrit-Change-Number: 30717 Gerrit-PatchSet: 6 Gerrit-Owner: dexter <pmaier(a)sysmocom.de> Gerrit-Reviewer: Jenkins Builder Gerrit-Reviewer: laforge <laforge(a)osmocom.org> Gerrit-Reviewer: pespin <pespin(a)sysmocom.de> Gerrit-CC: msuraev <msuraev(a)sysmocom.de> Gerrit-Attention: msuraev <msuraev(a)sysmocom.de> Gerrit-Attention: dexter <pmaier(a)sysmocom.de> Gerrit-Comment-Date: Mon, 09 Jan 2023 17:17:19 +0000 Gerrit-HasComments: No Gerrit-Has-Labels: Yes Gerrit-MessageType: comment

2 years, 5 months

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Change in libosmo-abis[master]: lapd_pcap: fix illegal VLA within struct

by Hoernchen

Attention is currently required from: Hoernchen. Hello Jenkins Builder, I'd like you to reexamine a change. Please visit https://gerrit.osmocom.org/c/libosmo-abis/+/30908 to look at the new patch set (#3). Change subject: lapd_pcap: fix illegal VLA within struct ...................................................................... lapd_pcap: fix illegal VLA within struct Another weird and unique gcc supported extension, clang complains: CC input/lapd_pcap.lo input/lapd_pcap.c:134:8: error: fields must have a constant size: 'variable length array in structure' extension will never be supported char buf[msg->len]; ^ The kernel has been VLA-free since 2018, let's try not to make it worse. Change-Id: I547d900ba88c60bae5b53345e1aee104bacd310d --- M src/input/lapd_pcap.c 1 file changed, 22 insertions(+), 19 deletions(-) git pull ssh://gerrit.osmocom.org:29418/libosmo-abis refs/changes/08/30908/3 -- To view, visit https://gerrit.osmocom.org/c/libosmo-abis/+/30908 To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: libosmo-abis Gerrit-Branch: master Gerrit-Change-Id: I547d900ba88c60bae5b53345e1aee104bacd310d Gerrit-Change-Number: 30908 Gerrit-PatchSet: 3 Gerrit-Owner: Hoernchen <ewild(a)sysmocom.de> Gerrit-Reviewer: Jenkins Builder Gerrit-Attention: Hoernchen <ewild(a)sysmocom.de> Gerrit-MessageType: newpatchset

2 years, 5 months

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Change in libosmo-abis[master]: lapd_pcap: fix illegal VLA within struct

by Hoernchen

Attention is currently required from: Hoernchen. Hello Jenkins Builder, I'd like you to reexamine a change. Please visit https://gerrit.osmocom.org/c/libosmo-abis/+/30908 to look at the new patch set (#2). Change subject: lapd_pcap: fix illegal VLA within struct ...................................................................... lapd_pcap: fix illegal VLA within struct Another weird and unique gcc supported extension, clang complains: CC input/lapd_pcap.lo input/lapd_pcap.c:134:8: error: fields must have a constant size: 'variable length array in structure' extension will never be supported char buf[msg->len]; ^ The kernel has been VLA-free since 2018, let's try not to make it worse. Change-Id: I547d900ba88c60bae5b53345e1aee104bacd310d --- M src/input/lapd_pcap.c 1 file changed, 22 insertions(+), 19 deletions(-) git pull ssh://gerrit.osmocom.org:29418/libosmo-abis refs/changes/08/30908/2 -- To view, visit https://gerrit.osmocom.org/c/libosmo-abis/+/30908 To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: libosmo-abis Gerrit-Branch: master Gerrit-Change-Id: I547d900ba88c60bae5b53345e1aee104bacd310d Gerrit-Change-Number: 30908 Gerrit-PatchSet: 2 Gerrit-Owner: Hoernchen <ewild(a)sysmocom.de> Gerrit-Reviewer: Jenkins Builder Gerrit-Attention: Hoernchen <ewild(a)sysmocom.de> Gerrit-MessageType: newpatchset

2 years, 5 months

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Change in libosmo-abis[master]: lapd_pcap: fix illegal VLA within struct

by Jenkins Builder

Jenkins Builder has posted comments on this change. ( https://gerrit.osmocom.org/c/libosmo-abis/+/30908 ) Change subject: lapd_pcap: fix illegal VLA within struct ...................................................................... Patch Set 1: (1 comment) File src/input/lapd_pcap.c: Robot Comment from checkpatch (run ID jenkins-gerrit-lint-2521): https://gerrit.osmocom.org/c/libosmo-abis/+/30908/comment/610af20b_b2778d28 PS1, Line 138: struct tmp_pkt* s = alloca(total_pkt_len); "foo* bar" should be "foo *bar" -- To view, visit https://gerrit.osmocom.org/c/libosmo-abis/+/30908 To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: libosmo-abis Gerrit-Branch: master Gerrit-Change-Id: I547d900ba88c60bae5b53345e1aee104bacd310d Gerrit-Change-Number: 30908 Gerrit-PatchSet: 1 Gerrit-Owner: Hoernchen <ewild(a)sysmocom.de> Gerrit-CC: Jenkins Builder Gerrit-Comment-Date: Mon, 09 Jan 2023 17:14:19 +0000 Gerrit-HasComments: Yes Gerrit-Has-Labels: No Gerrit-MessageType: comment

2 years, 5 months

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Change in libosmo-abis[master]: lapd_pcap: fix illegal VLA within struct

by Hoernchen

Hoernchen has uploaded this change for review. ( https://gerrit.osmocom.org/c/libosmo-abis/+/30908 ) Change subject: lapd_pcap: fix illegal VLA within struct ...................................................................... lapd_pcap: fix illegal VLA within struct Another weird and unique gcc supported extension, clang complains: Change-Id: I547d900ba88c60bae5b53345e1aee104bacd310d --- M src/input/lapd_pcap.c 1 file changed, 22 insertions(+), 19 deletions(-) git pull ssh://gerrit.osmocom.org:29418/libosmo-abis refs/changes/08/30908/1 diff --git a/src/input/lapd_pcap.c b/src/input/lapd_pcap.c index 6e1faf5..e44b42e 100644 --- a/src/input/lapd_pcap.c +++ b/src/input/lapd_pcap.c @@ -128,44 +128,47 @@ int osmo_pcap_lapd_write(int fd, int direction, struct msgb *msg) { struct timeval tv; - struct { + struct tmp_pkt { struct pcap_rechdr pcap_rechdr; struct pcap_lapdhdr header; - char buf[msg->len]; - } __attribute__((packed)) s; + char buf[0]; + } __attribute__((packed)); + const unsigned int total_pkt_len = sizeof(struct tmp_pkt) + msg->len; + + struct tmp_pkt* s = alloca(total_pkt_len); /* PCAP file has not been opened, skip. */ if (fd < 0) return 0; - memset(&s, 0, sizeof(s)); + memset(s, 0, total_pkt_len); - s.pcap_rechdr.ts_sec = 0; - s.pcap_rechdr.ts_usec = 0; - s.pcap_rechdr.incl_len = msg->len + sizeof(struct pcap_lapdhdr); - s.pcap_rechdr.orig_len = msg->len + sizeof(struct pcap_lapdhdr); + s->pcap_rechdr.ts_sec = 0; + s->pcap_rechdr.ts_usec = 0; + s->pcap_rechdr.incl_len = msg->len + sizeof(struct pcap_lapdhdr); + s->pcap_rechdr.orig_len = msg->len + sizeof(struct pcap_lapdhdr); if (direction == OSMO_LAPD_PCAP_OUTPUT) - s.header.pkttype = htons(LINUX_SLL_OUTGOING); + s->header.pkttype = htons(LINUX_SLL_OUTGOING); else - s.header.pkttype = htons(LINUX_SLL_HOST); - s.header.hatype = 0; - s.header.halen = 0; - s.header.addr[0] = 0x01; /* we are the network side */ - s.header.protocol = ntohs(48); + s->header.pkttype = htons(LINUX_SLL_HOST); + s->header.hatype = 0; + s->header.halen = 0; + s->header.addr[0] = 0x01; /* we are the network side */ + s->header.protocol = ntohs(48); gettimeofday(&tv, NULL); - s.pcap_rechdr.ts_sec = tv.tv_sec; - s.pcap_rechdr.ts_usec = tv.tv_usec; + s->pcap_rechdr.ts_sec = tv.tv_sec; + s->pcap_rechdr.ts_usec = tv.tv_usec; - memcpy(s.buf, msg->data, msg->len); + memcpy(s->buf, msg->data, msg->len); - if (write(fd, &s, sizeof(s)) != sizeof(s)) { + if (write(fd, s, total_pkt_len) != total_pkt_len) { LOGP(DLLAPD, LOGL_ERROR, "cannot write packet to PCAP: %s\n", strerror(errno)); return -1; } - return sizeof(s); + return total_pkt_len; } int osmo_pcap_lapd_close(int fd) -- To view, visit https://gerrit.osmocom.org/c/libosmo-abis/+/30908 To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: libosmo-abis Gerrit-Branch: master Gerrit-Change-Id: I547d900ba88c60bae5b53345e1aee104bacd310d Gerrit-Change-Number: 30908 Gerrit-PatchSet: 1 Gerrit-Owner: Hoernchen <ewild(a)sysmocom.de> Gerrit-MessageType: newchange

2 years, 5 months

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