1160 lines
31 KiB
C
1160 lines
31 KiB
C
/* A hackish minimal BSC (+MSC +HLR) implementation */
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/* (C) 2008-2009 by Harald Welte <laforge@gnumonks.org>
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* (C) 2009 by Holger Hans Peter Freyther <zecke@selfish.org>
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* All Rights Reserved
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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*/
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#include <unistd.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <stdarg.h>
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#include <time.h>
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#include <string.h>
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#include <errno.h>
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#include <signal.h>
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#include <fcntl.h>
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#include <sys/stat.h>
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#define _GNU_SOURCE
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#include <getopt.h>
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#include <openbsc/db.h>
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#include <openbsc/timer.h>
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#include <openbsc/gsm_data.h>
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#include <openbsc/gsm_04_08.h>
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#include <openbsc/select.h>
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#include <openbsc/abis_rsl.h>
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#include <openbsc/abis_nm.h>
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#include <openbsc/debug.h>
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#include <openbsc/misdn.h>
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#include <openbsc/telnet_interface.h>
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#include <openbsc/paging.h>
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#include <openbsc/e1_input.h>
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#include <openbsc/signal.h>
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/* global pointer to the gsm network data structure */
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static struct gsm_network *gsmnet;
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/* MCC and MNC for the Location Area Identifier */
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static int MCC = 1;
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static int MNC = 1;
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static int LAC = 1;
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static int ARFCN = HARDCODED_ARFCN;
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static int cardnr = 0;
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static int release_l2 = 0;
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static enum gsm_bts_type BTS_TYPE = GSM_BTS_TYPE_BS11;
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static const char *database_name = "hlr.sqlite3";
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/* The following definitions are for OM and NM packets that we cannot yet
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* generate by code but we just pass on */
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// BTS Site Manager, SET ATTRIBUTES
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/*
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Object Class: BTS Site Manager
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Instance 1: FF
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Instance 2: FF
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Instance 3: FF
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SET ATTRIBUTES
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sAbisExternalTime: 2007/09/08 14:36:11
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omLAPDRelTimer: 30sec
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shortLAPDIntTimer: 5sec
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emergencyTimer1: 10 minutes
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emergencyTimer2: 0 minutes
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*/
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unsigned char msg_1[] =
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{
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0xD0, 0x00, 0xFF, 0xFF, 0xFF,
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NM_ATT_BS11_ABIS_EXT_TIME, 0x07,
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0xD7, 0x09, 0x08, 0x0E, 0x24, 0x0B, 0xCE,
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0x02,
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0x00, 0x1E,
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NM_ATT_BS11_SH_LAPD_INT_TIMER,
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0x01, 0x05,
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0x42, 0x02, 0x00, 0x0A,
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0x44, 0x02, 0x00, 0x00
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};
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// BTS, SET BTS ATTRIBUTES
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/*
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Object Class: BTS
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BTS relat. Number: 0
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Instance 2: FF
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Instance 3: FF
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SET BTS ATTRIBUTES
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bsIdentityCode / BSIC:
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PLMN_colour_code: 7h
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BS_colour_code: 7h
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BTS Air Timer T3105: 4 ,unit 10 ms
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btsIsHopping: FALSE
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periodCCCHLoadIndication: 1sec
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thresholdCCCHLoadIndication: 0%
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cellAllocationNumber: 00h = GSM 900
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enableInterferenceClass: 00h = Disabled
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fACCHQual: 6 (FACCH stealing flags minus 1)
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intaveParameter: 31 SACCH multiframes
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interferenceLevelBoundaries:
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Interference Boundary 1: 0Ah
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Interference Boundary 2: 0Fh
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Interference Boundary 3: 14h
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Interference Boundary 4: 19h
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Interference Boundary 5: 1Eh
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mSTxPwrMax: 11
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GSM range: 2=39dBm, 15=13dBm, stepsize 2 dBm
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DCS1800 range: 0=30dBm, 15=0dBm, stepsize 2 dBm
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PCS1900 range: 0=30dBm, 15=0dBm, stepsize 2 dBm
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30=33dBm, 31=32dBm
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ny1:
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Maximum number of repetitions for PHYSICAL INFORMATION message (GSM 04.08): 20
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powerOutputThresholds:
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Out Power Fault Threshold: -10 dB
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Red Out Power Threshold: - 6 dB
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Excessive Out Power Threshold: 5 dB
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rACHBusyThreshold: -127 dBm
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rACHLoadAveragingSlots: 250 ,number of RACH burst periods
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rfResourceIndicationPeriod: 125 SACCH multiframes
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T200:
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SDCCH: 044 in 5 ms
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FACCH/Full rate: 031 in 5 ms
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FACCH/Half rate: 041 in 5 ms
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SACCH with TCH SAPI0: 090 in 10 ms
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SACCH with SDCCH: 090 in 10 ms
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SDCCH with SAPI3: 090 in 5 ms
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SACCH with TCH SAPI3: 135 in 10 ms
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tSync: 9000 units of 10 msec
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tTrau: 9000 units of 10 msec
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enableUmLoopTest: 00h = disabled
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enableExcessiveDistance: 00h = Disabled
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excessiveDistance: 64km
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hoppingMode: 00h = baseband hopping
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cellType: 00h = Standard Cell
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BCCH ARFCN / bCCHFrequency: 1
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*/
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unsigned char msg_2[] =
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{
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0x41, NM_OC_BTS, 0x00, 0xFF, 0xFF,
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NM_ATT_BSIC, HARDCODED_BSIC,
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NM_ATT_BTS_AIR_TIMER, 0x04,
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NM_ATT_BS11_BTSLS_HOPPING, 0x00,
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NM_ATT_CCCH_L_I_P, 0x01,
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NM_ATT_CCCH_L_T, 0x00,
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NM_ATT_BS11_CELL_ALLOC_NR, NM_BS11_CANR_GSM,
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NM_ATT_BS11_ENA_INTERF_CLASS, 0x01,
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NM_ATT_BS11_FACCH_QUAL, 0x06,
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/* interference avg. period in numbers of SACCH multifr */
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NM_ATT_INTAVE_PARAM, 0x1F,
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NM_ATT_INTERF_BOUND, 0x0A, 0x0F, 0x14, 0x19, 0x1E, 0x7B,
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NM_ATT_CCCH_L_T, 0x23,
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NM_ATT_GSM_TIME, 0x28, 0x00,
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NM_ATT_ADM_STATE, 0x03,
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NM_ATT_RACH_B_THRESH, 0x7F,
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NM_ATT_LDAVG_SLOTS, 0x00, 0xFA,
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NM_ATT_BS11_RF_RES_IND_PER, 0x7D,
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NM_ATT_T200, 0x2C, 0x1F, 0x29, 0x5A, 0x5A, 0x5A, 0x87,
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NM_ATT_BS11_TSYNC, 0x23, 0x28,
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NM_ATT_BS11_TTRAU, 0x23, 0x28,
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NM_ATT_TEST_DUR, 0x01, 0x00,
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NM_ATT_OUTST_ALARM, 0x01, 0x00,
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NM_ATT_BS11_EXCESSIVE_DISTANCE, 0x01, 0x40,
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NM_ATT_BS11_HOPPING_MODE, 0x01, 0x00,
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NM_ATT_BS11_PLL, 0x01, 0x00,
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NM_ATT_BCCH_ARFCN, 0x00, HARDCODED_ARFCN/*0x01*/,
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};
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// Handover Recognition, SET ATTRIBUTES
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/*
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Illegal Contents GSM Formatted O&M Msg
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Object Class: Handover Recognition
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BTS relat. Number: 0
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Instance 2: FF
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Instance 3: FF
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SET ATTRIBUTES
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enableDelayPowerBudgetHO: 00h = Disabled
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enableDistanceHO: 00h = Disabled
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enableInternalInterCellHandover: 00h = Disabled
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enableInternalIntraCellHandover: 00h = Disabled
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enablePowerBudgetHO: 00h = Disabled
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enableRXLEVHO: 00h = Disabled
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enableRXQUALHO: 00h = Disabled
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hoAveragingDistance: 8 SACCH multiframes
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hoAveragingLev:
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A_LEV_HO: 8 SACCH multiframes
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W_LEV_HO: 1 SACCH multiframes
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hoAveragingPowerBudget: 16 SACCH multiframes
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hoAveragingQual:
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A_QUAL_HO: 8 SACCH multiframes
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W_QUAL_HO: 2 SACCH multiframes
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hoLowerThresholdLevDL: (10 - 110) dBm
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hoLowerThresholdLevUL: (5 - 110) dBm
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hoLowerThresholdQualDL: 06h = 6.4% < BER < 12.8%
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hoLowerThresholdQualUL: 06h = 6.4% < BER < 12.8%
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hoThresholdLevDLintra : (20 - 110) dBm
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hoThresholdLevULintra: (20 - 110) dBm
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hoThresholdMsRangeMax: 20 km
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nCell: 06h
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timerHORequest: 3 ,unit 2 SACCH multiframes
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*/
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unsigned char msg_3[] =
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{
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0xD0, NM_OC_BS11_HANDOVER, 0x00, 0xFF, 0xFF,
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0xD0, 0x00,
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0x64, 0x00,
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0x67, 0x00,
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0x68, 0x00,
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0x6A, 0x00,
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0x6C, 0x00,
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0x6D, 0x00,
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0x6F, 0x08,
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0x70, 0x08, 0x01,
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0x71, 0x10, 0x10, 0x10,
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0x72, 0x08, 0x02,
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0x73, 0x0A,
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0x74, 0x05,
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0x75, 0x06,
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0x76, 0x06,
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0x78, 0x14,
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0x79, 0x14,
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0x7A, 0x14,
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0x7D, 0x06,
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0x92, 0x03, 0x20, 0x01, 0x00,
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0x45, 0x01, 0x00,
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0x48, 0x01, 0x00,
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0x5A, 0x01, 0x00,
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0x5B, 0x01, 0x05,
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0x5E, 0x01, 0x1A,
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0x5F, 0x01, 0x20,
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0x9D, 0x01, 0x00,
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0x47, 0x01, 0x00,
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0x5C, 0x01, 0x64,
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0x5D, 0x01, 0x1E,
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0x97, 0x01, 0x20,
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0xF7, 0x01, 0x3C,
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};
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// Power Control, SET ATTRIBUTES
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/*
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Object Class: Power Control
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BTS relat. Number: 0
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Instance 2: FF
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Instance 3: FF
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SET ATTRIBUTES
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enableMsPowerControl: 00h = Disabled
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enablePowerControlRLFW: 00h = Disabled
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pcAveragingLev:
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A_LEV_PC: 4 SACCH multiframes
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W_LEV_PC: 1 SACCH multiframes
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pcAveragingQual:
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A_QUAL_PC: 4 SACCH multiframes
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W_QUAL_PC: 2 SACCH multiframes
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pcLowerThresholdLevDL: 0Fh
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pcLowerThresholdLevUL: 0Ah
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pcLowerThresholdQualDL: 05h = 3.2% < BER < 6.4%
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pcLowerThresholdQualUL: 05h = 3.2% < BER < 6.4%
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pcRLFThreshold: 0Ch
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pcUpperThresholdLevDL: 14h
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pcUpperThresholdLevUL: 0Fh
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pcUpperThresholdQualDL: 04h = 1.6% < BER < 3.2%
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pcUpperThresholdQualUL: 04h = 1.6% < BER < 3.2%
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powerConfirm: 2 ,unit 2 SACCH multiframes
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powerControlInterval: 2 ,unit 2 SACCH multiframes
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powerIncrStepSize: 02h = 4 dB
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powerRedStepSize: 01h = 2 dB
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radioLinkTimeoutBs: 64 SACCH multiframes
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enableBSPowerControl: 00h = disabled
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*/
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unsigned char msg_4[] =
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{
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0xD0, NM_OC_BS11_PWR_CTRL, 0x00, 0xFF, 0xFF,
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NM_ATT_BS11_ENA_MS_PWR_CTRL, 0x00,
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NM_ATT_BS11_ENA_PWR_CTRL_RLFW, 0x00,
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0x7E, 0x04, 0x01,
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0x7F, 0x04, 0x02,
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0x80, 0x0F,
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0x81, 0x0A,
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0x82, 0x05,
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0x83, 0x05,
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0x84, 0x0C,
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0x85, 0x14,
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0x86, 0x0F,
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0x87, 0x04,
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0x88, 0x04,
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0x89, 0x02,
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0x8A, 0x02,
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0x8B, 0x02,
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0x8C, 0x01,
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0x8D, 0x40,
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0x65, 0x01, 0x00 // set to 0x01 to enable BSPowerControl
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};
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// Transceiver, SET TRX ATTRIBUTES (TRX 0)
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/*
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Object Class: Transceiver
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BTS relat. Number: 0
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Tranceiver number: 0
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Instance 3: FF
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SET TRX ATTRIBUTES
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aRFCNList (HEX): 0001
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txPwrMaxReduction: 00h = 30dB
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radioMeasGran: 254 SACCH multiframes
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radioMeasRep: 01h = enabled
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memberOfEmergencyConfig: 01h = TRUE
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trxArea: 00h = TRX doesn't belong to a concentric cell
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*/
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unsigned char msg_6[] =
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{
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0x44, NM_OC_RADIO_CARRIER, 0x00, 0x00, 0xFF,
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NM_ATT_ARFCN_LIST, 0x01, 0x00, HARDCODED_ARFCN /*0x01*/,
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NM_ATT_RF_MAXPOWR_R, 0x00,
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NM_ATT_BS11_RADIO_MEAS_GRAN, 0x01, 0xFE,
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NM_ATT_BS11_RADIO_MEAS_REP, 0x01, 0x01,
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NM_ATT_BS11_EMRG_CFG_MEMBER, 0x01, 0x01,
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NM_ATT_BS11_TRX_AREA, 0x01, 0x00,
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};
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static unsigned char nanobts_attr_bts[] = {
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NM_ATT_INTERF_BOUND, 0x55, 0x5b, 0x61, 0x67, 0x6d, 0x73,
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/* interference avg. period in numbers of SACCH multifr */
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NM_ATT_INTAVE_PARAM, 0x06,
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/* conn fail based on SACCH error rate */
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NM_ATT_CONN_FAIL_CRIT, 0x00, 0x02, 0x01, 0x10,
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NM_ATT_T200, 0x1e, 0x24, 0x24, 0xa8, 0x34, 0x21, 0xa8,
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NM_ATT_MAX_TA, 0x3f,
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NM_ATT_OVERL_PERIOD, 0x00, 0x01, 10, /* seconds */
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NM_ATT_CCCH_L_T, 10, /* percent */
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NM_ATT_CCCH_L_I_P, 1, /* seconds */
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NM_ATT_RACH_B_THRESH, 10, /* busy threshold in - dBm */
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NM_ATT_LDAVG_SLOTS, 0x03, 0xe8, /* rach load averaging 1000 slots */
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NM_ATT_BTS_AIR_TIMER, 128, /* miliseconds */
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NM_ATT_NY1, 10, /* 10 retransmissions of physical config */
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NM_ATT_BCCH_ARFCN, HARDCODED_ARFCN >> 8, HARDCODED_ARFCN & 0xff,
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NM_ATT_BSIC, HARDCODED_BSIC,
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};
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static unsigned char nanobts_attr_radio[] = {
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NM_ATT_RF_MAXPOWR_R, 0x0c, /* number of -2dB reduction steps / Pn */
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NM_ATT_ARFCN_LIST, 0x00, 0x02, HARDCODED_ARFCN >> 8, HARDCODED_ARFCN & 0xff,
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};
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static unsigned char nanobts_attr_e0[] = {
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0x85, 0x00,
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0x81, 0x0b, 0xbb, /* TCP PORT for RSL */
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};
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/* Callback function to be called whenever we get a GSM 12.21 state change event */
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int nm_state_event(enum nm_evt evt, u_int8_t obj_class, void *obj,
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struct gsm_nm_state *old_state, struct gsm_nm_state *new_state)
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{
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struct gsm_bts *bts;
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struct gsm_bts_trx *trx;
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struct gsm_bts_trx_ts *ts;
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/* This is currently only required on nanoBTS */
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switch (evt) {
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case EVT_STATECHG_OPER:
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switch (obj_class) {
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case NM_OC_SITE_MANAGER:
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bts = container_of(obj, struct gsm_bts, site_mgr);
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if (old_state->operational != 2 && new_state->operational == 2) {
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abis_nm_opstart(bts, NM_OC_SITE_MANAGER, 0xff, 0xff, 0xff);
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}
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break;
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case NM_OC_BTS:
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bts = obj;
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if (new_state->availability == 5) {
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abis_nm_set_bts_attr(bts, nanobts_attr_bts,
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sizeof(nanobts_attr_bts));
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abis_nm_opstart(bts, NM_OC_BTS,
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bts->bts_nr, 0xff, 0xff);
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abis_nm_chg_adm_state(bts, NM_OC_BTS,
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bts->bts_nr, 0xff, 0xff,
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NM_STATE_UNLOCKED);
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}
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break;
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case NM_OC_CHANNEL:
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ts = obj;
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trx = ts->trx;
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if (new_state->availability == 5) {
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if (ts->nr == 0 && trx == trx->bts->c0)
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abis_nm_set_channel_attr(ts, NM_CHANC_BCCH_CBCH);
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else
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abis_nm_set_channel_attr(ts, NM_CHANC_TCHFull);
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abis_nm_opstart(trx->bts, NM_OC_CHANNEL,
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trx->bts->bts_nr, trx->nr, ts->nr);
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abis_nm_chg_adm_state(trx->bts, NM_OC_CHANNEL,
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trx->bts->bts_nr, trx->nr, ts->nr,
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NM_STATE_UNLOCKED);
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}
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break;
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default:
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break;
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}
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break;
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default:
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//DEBUGP(DMM, "Unhandled state change in %s:%d\n", __func__, __LINE__);
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break;
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}
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return 0;
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}
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/* Callback function to be called every time we receive a 12.21 SW activated report */
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static int sw_activ_rep(struct msgb *mb)
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{
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struct abis_om_fom_hdr *foh = msgb_l3(mb);
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struct gsm_bts_trx *trx = mb->trx;
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switch (foh->obj_class) {
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case NM_OC_BASEB_TRANSC:
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/* TRX software is active, tell it to initiate RSL Link */
|
|
abis_nm_ipaccess_msg(trx->bts, 0xe0, NM_OC_BASEB_TRANSC,
|
|
trx->bts->bts_nr, trx->nr, 0xff,
|
|
nanobts_attr_e0, sizeof(nanobts_attr_e0));
|
|
abis_nm_opstart(trx->bts, NM_OC_BASEB_TRANSC,
|
|
trx->bts->bts_nr, trx->nr, 0xff);
|
|
abis_nm_chg_adm_state(trx->bts, NM_OC_BASEB_TRANSC,
|
|
trx->bts->bts_nr, trx->nr, 0xff,
|
|
NM_STATE_UNLOCKED);
|
|
break;
|
|
case NM_OC_RADIO_CARRIER:
|
|
abis_nm_set_radio_attr(trx, nanobts_attr_radio,
|
|
sizeof(nanobts_attr_radio));
|
|
abis_nm_opstart(trx->bts, NM_OC_RADIO_CARRIER,
|
|
trx->bts->bts_nr, trx->nr, 0xff);
|
|
abis_nm_chg_adm_state(trx->bts, NM_OC_RADIO_CARRIER,
|
|
trx->bts->bts_nr, trx->nr, 0xff,
|
|
NM_STATE_UNLOCKED);
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* Callback function to be called every time we receive a signal from NM */
|
|
static int nm_sig_cb(unsigned int subsys, unsigned int signal,
|
|
void *handler_data, void *signal_data)
|
|
{
|
|
switch (signal) {
|
|
case S_NM_SW_ACTIV_REP:
|
|
return sw_activ_rep(signal_data);
|
|
default:
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void bootstrap_om_nanobts(struct gsm_bts *bts)
|
|
{
|
|
/* We don't do callback based bootstrapping, but event driven (see above) */
|
|
}
|
|
|
|
static void bootstrap_om_bs11(struct gsm_bts *bts)
|
|
{
|
|
struct gsm_bts_trx *trx = &bts->trx[0];
|
|
|
|
/* stop sending event reports */
|
|
abis_nm_event_reports(bts, 0);
|
|
|
|
/* begin DB transmission */
|
|
abis_nm_bs11_db_transmission(bts, 1);
|
|
|
|
/* end DB transmission */
|
|
abis_nm_bs11_db_transmission(bts, 0);
|
|
|
|
/* Reset BTS Site manager resource */
|
|
abis_nm_bs11_reset_resource(bts);
|
|
|
|
/* begin DB transmission */
|
|
abis_nm_bs11_db_transmission(bts, 1);
|
|
|
|
abis_nm_raw_msg(bts, sizeof(msg_1), msg_1); /* set BTS SiteMgr attr*/
|
|
abis_nm_raw_msg(bts, sizeof(msg_2), msg_2); /* set BTS attr */
|
|
abis_nm_raw_msg(bts, sizeof(msg_3), msg_3); /* set BTS handover attr */
|
|
abis_nm_raw_msg(bts, sizeof(msg_4), msg_4); /* set BTS power control attr */
|
|
|
|
/* Connect signalling of bts0/trx0 to e1_0/ts1/64kbps */
|
|
abis_nm_conn_terr_sign(trx, 0, 1, 0xff);
|
|
abis_nm_raw_msg(bts, sizeof(msg_6), msg_6); /* SET TRX ATTRIBUTES */
|
|
|
|
/* Use TEI 1 for signalling */
|
|
abis_nm_establish_tei(bts, 0, 0, 1, 0xff, 0x01);
|
|
abis_nm_set_channel_attr(&trx->ts[0], NM_CHANC_SDCCH_CBCH);
|
|
|
|
#ifdef HAVE_TRX1
|
|
/* TRX 1 */
|
|
abis_nm_conn_terr_sign(&bts->trx[1], 0, 1, 0xff);
|
|
/* FIXME: TRX ATTRIBUTE */
|
|
abis_nm_establish_tei(bts, 0, 0, 1, 0xff, 0x02);
|
|
#endif
|
|
|
|
/* SET CHANNEL ATTRIBUTE TS1 */
|
|
abis_nm_set_channel_attr(&trx->ts[1], NM_CHANC_TCHFull);
|
|
/* Connect traffic of bts0/trx0/ts1 to e1_0/ts2/b */
|
|
abis_nm_conn_terr_traf(&trx->ts[1], 0, 2, 1);
|
|
|
|
/* SET CHANNEL ATTRIBUTE TS2 */
|
|
abis_nm_set_channel_attr(&trx->ts[2], NM_CHANC_TCHFull);
|
|
/* Connect traffic of bts0/trx0/ts2 to e1_0/ts2/c */
|
|
abis_nm_conn_terr_traf(&trx->ts[2], 0, 2, 2);
|
|
|
|
/* SET CHANNEL ATTRIBUTE TS3 */
|
|
abis_nm_set_channel_attr(&trx->ts[3], NM_CHANC_TCHFull);
|
|
/* Connect traffic of bts0/trx0/ts3 to e1_0/ts2/d */
|
|
abis_nm_conn_terr_traf(&trx->ts[3], 0, 2, 3);
|
|
|
|
/* SET CHANNEL ATTRIBUTE TS4 */
|
|
abis_nm_set_channel_attr(&trx->ts[4], NM_CHANC_TCHFull);
|
|
/* Connect traffic of bts0/trx0/ts4 to e1_0/ts3/a */
|
|
abis_nm_conn_terr_traf(&trx->ts[4], 0, 3, 0);
|
|
|
|
/* SET CHANNEL ATTRIBUTE TS5 */
|
|
abis_nm_set_channel_attr(&trx->ts[5], NM_CHANC_TCHFull);
|
|
/* Connect traffic of bts0/trx0/ts5 to e1_0/ts3/b */
|
|
abis_nm_conn_terr_traf(&trx->ts[5], 0, 3, 1);
|
|
|
|
/* SET CHANNEL ATTRIBUTE TS6 */
|
|
abis_nm_set_channel_attr(&trx->ts[6], NM_CHANC_TCHFull);
|
|
/* Connect traffic of bts0/trx0/ts6 to e1_0/ts3/c */
|
|
abis_nm_conn_terr_traf(&trx->ts[6], 0, 3, 2);
|
|
|
|
/* SET CHANNEL ATTRIBUTE TS7 */
|
|
abis_nm_set_channel_attr(&trx->ts[7], NM_CHANC_TCHFull);
|
|
/* Connect traffic of bts0/trx0/ts7 to e1_0/ts3/d */
|
|
abis_nm_conn_terr_traf(&trx->ts[7], 0, 3, 3);
|
|
|
|
/* end DB transmission */
|
|
abis_nm_bs11_db_transmission(bts, 0);
|
|
|
|
/* Reset BTS Site manager resource */
|
|
abis_nm_bs11_reset_resource(bts);
|
|
|
|
/* restart sending event reports */
|
|
abis_nm_event_reports(bts, 1);
|
|
}
|
|
|
|
static void bootstrap_om(struct gsm_bts *bts)
|
|
{
|
|
fprintf(stdout, "bootstrapping OML for BTS %u\n", bts->nr);
|
|
|
|
switch (bts->type) {
|
|
case GSM_BTS_TYPE_BS11:
|
|
bootstrap_om_bs11(bts);
|
|
break;
|
|
case GSM_BTS_TYPE_NANOBTS_900:
|
|
case GSM_BTS_TYPE_NANOBTS_1800:
|
|
bootstrap_om_nanobts(bts);
|
|
break;
|
|
default:
|
|
fprintf(stderr, "Unable to bootstrap OML: Unknown BTS type %d\n", bts->type);
|
|
}
|
|
}
|
|
|
|
static int shutdown_om(struct gsm_bts *bts)
|
|
{
|
|
/* stop sending event reports */
|
|
abis_nm_event_reports(bts, 0);
|
|
|
|
/* begin DB transmission */
|
|
abis_nm_bs11_db_transmission(bts, 1);
|
|
|
|
/* end DB transmission */
|
|
abis_nm_bs11_db_transmission(bts, 0);
|
|
|
|
/* Reset BTS Site manager resource */
|
|
abis_nm_bs11_reset_resource(bts);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int shutdown_net(struct gsm_network *net)
|
|
{
|
|
int i;
|
|
for (i = 0; i < net->num_bts; i++) {
|
|
int rc;
|
|
rc = shutdown_om(&net->bts[i]);
|
|
if (rc < 0)
|
|
return rc;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
struct bcch_info {
|
|
u_int8_t type;
|
|
u_int8_t len;
|
|
const u_int8_t *data;
|
|
};
|
|
|
|
/*
|
|
SYSTEM INFORMATION TYPE 1
|
|
Cell channel description
|
|
Format-ID bit map 0
|
|
CA-ARFCN Bit 124...001 (Hex): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01
|
|
RACH Control Parameters
|
|
maximum 7 retransmissions
|
|
8 slots used to spread transmission
|
|
cell not barred for access
|
|
call reestablishment not allowed
|
|
Access Control Class = 0000
|
|
*/
|
|
static u_int8_t si1[] = {
|
|
/* header */0x55, 0x06, 0x19,
|
|
/* ccdesc */0x04 /*0x00*/, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 /*0x01*/,
|
|
/* rach */0xD5, 0x00, 0x00,
|
|
/* s1 reset*/0x2B
|
|
};
|
|
|
|
/*
|
|
SYSTEM INFORMATION TYPE 2
|
|
Neighbour Cells Description
|
|
EXT-IND: Carries the complete BA
|
|
BA-IND = 0
|
|
Format-ID bit map 0
|
|
CA-ARFCN Bit 124...001 (Hex): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
|
|
NCC permitted (NCC) = FF
|
|
RACH Control Parameters
|
|
maximum 7 retransmissions
|
|
8 slots used to spread transmission
|
|
cell not barred for access
|
|
call reestablishment not allowed
|
|
Access Control Class = 0000
|
|
*/
|
|
static u_int8_t si2[] = {
|
|
/* header */0x59, 0x06, 0x1A,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
/* ncc */0xFF,
|
|
/* rach*/0xD5, 0x00, 0x00
|
|
};
|
|
|
|
/*
|
|
SYSTEM INFORMATION TYPE 3
|
|
Cell identity = 00001 (1h)
|
|
Location area identification
|
|
Mobile Country Code (MCC): 001
|
|
Mobile Network Code (MNC): 01
|
|
Location Area Code (LAC): 00001 (1h)
|
|
Control Channel Description
|
|
Attach-detach: MSs in the cell are not allowed to apply IMSI attach /detach
|
|
0 blocks reserved for access grant
|
|
1 channel used for CCCH, with SDCCH
|
|
5 multiframes period for PAGING REQUEST
|
|
Time-out T3212 = 0
|
|
Cell Options BCCH
|
|
Power control indicator: not set
|
|
MSs shall not use uplink DTX
|
|
Radio link timeout = 36
|
|
Cell Selection Parameters
|
|
Cell reselect hysteresis = 6 dB RXLEV hysteresis for LA re-selection
|
|
max.TX power level MS may use for CCH = 2 <- according to GSM05.05 39dBm (max)
|
|
Additional Reselect Parameter Indication (ACS) = only SYSTEM INFO 4: The SI rest octets, if present, shall be used to derive the value of PI and possibly C2 parameters
|
|
Half rate support (NECI): New establishment causes are not supported
|
|
min.RX signal level for MS = 0
|
|
RACH Control Parameters
|
|
maximum 7 retransmissions
|
|
8 slots used to spread transmission
|
|
cell not barred for access
|
|
call reestablishment not allowed
|
|
Access Control Class = 0000
|
|
SI 3 Rest Octets
|
|
Cell Bar Qualify (CBQ): 0
|
|
Cell Reselect Offset = 0 dB
|
|
Temporary Offset = 0 dB
|
|
Penalty Time = 20 s
|
|
System Information 2ter Indicator (2TI): 0 = not available
|
|
Early Classmark Sending Control (ECSC): 0 = forbidden
|
|
Scheduling Information is not sent in SYSTEM INFORMATION TYPE 9 on the BCCH
|
|
*/
|
|
static u_int8_t si3[] = {
|
|
/* header */0x49, 0x06, 0x1B,
|
|
/* cell */0x00, 0x01,
|
|
/* lai */0x00, 0xF1, 0x10, 0x00, 0x01,
|
|
/* desc */0x01, 0x03, 0x00,
|
|
/* option*/0x28,
|
|
/* selection*/0x62, 0x00,
|
|
/* rach */0xD5, 0x00, 0x00,
|
|
/* reset*/0x80, 0x00, 0x00, 0x2B
|
|
};
|
|
|
|
/*
|
|
SYSTEM INFORMATION TYPE 4
|
|
Location area identification
|
|
Mobile Country Code (MCC): 001
|
|
Mobile Network Code (MNC): 01
|
|
Location Area Code (LAC): 00001 (1h)
|
|
Cell Selection Parameters
|
|
Cell reselect hysteresis = 6 dB RXLEV hysteresis for LA re-selection
|
|
max.TX power level MS may use for CCH = 2
|
|
Additional Reselect Parameter Indication (ACS) = only SYSTEM INFO 4: The SI rest octets, if present, shall be used to derive the value of PI and possibly C2 parameters
|
|
Half rate support (NECI): New establishment causes are not supported
|
|
min.RX signal level for MS = 0
|
|
RACH Control Parameters
|
|
maximum 7 retransmissions
|
|
8 slots used to spread transmission
|
|
cell not barred for access
|
|
call reestablishment not allowed
|
|
Access Control Class = 0000
|
|
Channel Description
|
|
Type = SDCCH/4[2]
|
|
Timeslot Number: 0
|
|
Training Sequence Code: 7h
|
|
ARFCN: 1
|
|
SI Rest Octets
|
|
Cell Bar Qualify (CBQ): 0
|
|
Cell Reselect Offset = 0 dB
|
|
Temporary Offset = 0 dB
|
|
Penalty Time = 20 s
|
|
*/
|
|
static u_int8_t si4[] = {
|
|
/* header */0x41, 0x06, 0x1C,
|
|
/* lai */0x00, 0xF1, 0x10, 0x00, 0x01,
|
|
/* sel */0x62, 0x00,
|
|
/* rach*/0xD5, 0x00, 0x00,
|
|
/* var */0x64, 0x30, 0xE0, HARDCODED_ARFCN/*0x01*/, 0x80, 0x00, 0x00,
|
|
0x2B, 0x2B, 0x2B
|
|
};
|
|
|
|
/*
|
|
SYSTEM INFORMATION TYPE 5
|
|
Neighbour Cells Description
|
|
EXT-IND: Carries the complete BA
|
|
BA-IND = 0
|
|
Format-ID bit map 0
|
|
CA-ARFCN Bit 124...001 (Hex): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
|
|
*/
|
|
|
|
static u_int8_t si5[] = {
|
|
/* header without l2 len*/0x06, 0x1D,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
};
|
|
|
|
// SYSTEM INFORMATION TYPE 6
|
|
|
|
/*
|
|
SACCH FILLING
|
|
System Info Type: SYSTEM INFORMATION 6
|
|
L3 Information (Hex): 06 1E 00 01 xx xx 10 00 01 28 FF
|
|
|
|
SYSTEM INFORMATION TYPE 6
|
|
Cell identity = 00001 (1h)
|
|
Location area identification
|
|
Mobile Country Code (MCC): 001
|
|
Mobile Network Code (MNC): 01
|
|
Location Area Code (LAC): 00001 (1h)
|
|
Cell Options SACCH
|
|
Power control indicator: not set
|
|
MSs shall not use uplink DTX on a TCH-F. MS shall not use uplink DTX on TCH-H.
|
|
Radio link timeout = 36
|
|
NCC permitted (NCC) = FF
|
|
*/
|
|
|
|
static u_int8_t si6[] = {
|
|
/* header */0x06, 0x1E,
|
|
/* cell id*/ 0x00, 0x01,
|
|
/* lai */ 0x00, 0xF1, 0x10, 0x00, 0x01,
|
|
/* options */ 0x28,
|
|
/* ncc */ 0xFF,
|
|
};
|
|
|
|
|
|
|
|
static const struct bcch_info bcch_infos[] = {
|
|
{
|
|
.type = RSL_SYSTEM_INFO_1,
|
|
.len = sizeof(si1),
|
|
.data = si1,
|
|
}, {
|
|
.type = RSL_SYSTEM_INFO_2,
|
|
.len = sizeof(si2),
|
|
.data = si2,
|
|
}, {
|
|
.type = RSL_SYSTEM_INFO_3,
|
|
.len = sizeof(si3),
|
|
.data = si3,
|
|
}, {
|
|
.type = RSL_SYSTEM_INFO_4,
|
|
.len = sizeof(si4),
|
|
.data = si4,
|
|
},
|
|
};
|
|
|
|
static_assert(sizeof(si1) == sizeof(struct gsm48_system_information_type_1), type1)
|
|
static_assert(sizeof(si2) == sizeof(struct gsm48_system_information_type_2), type2)
|
|
static_assert(sizeof(si3) == sizeof(struct gsm48_system_information_type_3), type3)
|
|
static_assert(sizeof(si4) >= sizeof(struct gsm48_system_information_type_4), type4)
|
|
static_assert(sizeof(si5) == sizeof(struct gsm48_system_information_type_5), type5)
|
|
static_assert(sizeof(si6) >= sizeof(struct gsm48_system_information_type_6), type6)
|
|
|
|
/* set all system information types */
|
|
static int set_system_infos(struct gsm_bts_trx *trx)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(bcch_infos); i++) {
|
|
rsl_bcch_info(trx, bcch_infos[i].type,
|
|
bcch_infos[i].data,
|
|
bcch_infos[i].len);
|
|
}
|
|
rsl_sacch_filling(trx, RSL_SYSTEM_INFO_5, si5, sizeof(si5));
|
|
rsl_sacch_filling(trx, RSL_SYSTEM_INFO_6, si6, sizeof(si6));
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Patch the various SYSTEM INFORMATION tables to update
|
|
* the LAI
|
|
*/
|
|
static void patch_tables(struct gsm_bts *bts)
|
|
{
|
|
u_int8_t arfcn_low = bts->trx[0].arfcn & 0xff;
|
|
u_int8_t arfcn_high = (bts->trx[0].arfcn >> 8) & 0x0f;
|
|
/* covert the raw packet to the struct */
|
|
struct gsm48_system_information_type_3 *type_3 =
|
|
(struct gsm48_system_information_type_3*)&si3;
|
|
struct gsm48_system_information_type_4 *type_4 =
|
|
(struct gsm48_system_information_type_4*)&si4;
|
|
struct gsm48_system_information_type_6 *type_6 =
|
|
(struct gsm48_system_information_type_6*)&si6;
|
|
struct gsm48_loc_area_id lai;
|
|
|
|
gsm0408_generate_lai(&lai, bts->network->country_code,
|
|
bts->network->network_code,
|
|
bts->location_area_code);
|
|
|
|
/* assign the MCC and MNC */
|
|
type_3->lai = lai;
|
|
type_4->lai = lai;
|
|
type_6->lai = lai;
|
|
|
|
/* patch ARFCN into BTS Attributes */
|
|
msg_2[74] &= 0xf0;
|
|
msg_2[74] |= arfcn_high;
|
|
msg_2[75] = arfcn_low;
|
|
nanobts_attr_bts[42] &= 0xf0;
|
|
nanobts_attr_bts[42] |= arfcn_high;
|
|
nanobts_attr_bts[43] = arfcn_low;
|
|
|
|
/* patch ARFCN into TRX Attributes */
|
|
msg_6[7] &= 0xf0;
|
|
msg_6[7] |= arfcn_high;
|
|
msg_6[8] = arfcn_low;
|
|
nanobts_attr_radio[5] &= 0xf0;
|
|
nanobts_attr_radio[5] |= arfcn_high;
|
|
nanobts_attr_radio[6] = arfcn_low;
|
|
|
|
type_4->data[2] &= 0xf0;
|
|
type_4->data[2] |= arfcn_high;
|
|
type_4->data[3] = arfcn_low;
|
|
|
|
/* patch Control Channel Description 10.5.2.11 */
|
|
type_3->control_channel_desc = bts->chan_desc;
|
|
|
|
/* patch BSIC */
|
|
msg_2[6] = bts->bsic;
|
|
nanobts_attr_bts[sizeof(nanobts_attr_bts)-1] = bts->bsic;
|
|
}
|
|
|
|
|
|
static void bootstrap_rsl(struct gsm_bts_trx *trx)
|
|
{
|
|
fprintf(stdout, "bootstrapping RSL for BTS/TRX (%u/%u) "
|
|
"using MCC=%u MNC=%u\n", trx->nr, trx->bts->nr, MCC, MNC);
|
|
set_system_infos(trx);
|
|
}
|
|
|
|
void input_event(int event, enum e1inp_sign_type type, struct gsm_bts_trx *trx)
|
|
{
|
|
switch (event) {
|
|
case EVT_E1_TEI_UP:
|
|
switch (type) {
|
|
case E1INP_SIGN_OML:
|
|
bootstrap_om(trx->bts);
|
|
break;
|
|
case E1INP_SIGN_RSL:
|
|
bootstrap_rsl(trx);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
case EVT_E1_TEI_DN:
|
|
fprintf(stderr, "Lost some E1 TEI link\n");
|
|
/* FIXME: deal with TEI or L1 link loss */
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
static int bootstrap_bts(struct gsm_bts *bts)
|
|
{
|
|
bts->location_area_code = LAC;
|
|
bts->trx[0].arfcn = ARFCN;
|
|
|
|
/* Control Channel Description */
|
|
memset(&bts->chan_desc, 0, sizeof(struct gsm48_control_channel_descr));
|
|
bts->chan_desc.att = 1;
|
|
bts->chan_desc.ccch_conf = RSL_BCCH_CCCH_CONF_1_C;
|
|
bts->chan_desc.bs_pa_mfrms = RSL_BS_PA_MFRMS_5;
|
|
bts->chan_desc.t3212 = 0;
|
|
|
|
patch_tables(bts);
|
|
|
|
paging_init(bts);
|
|
|
|
if (bts->type == GSM_BTS_TYPE_BS11) {
|
|
struct gsm_bts_trx *trx = &bts->trx[0];
|
|
set_ts_e1link(&trx->ts[0], 0, 1, 0xff);
|
|
set_ts_e1link(&trx->ts[1], 0, 2, 1);
|
|
set_ts_e1link(&trx->ts[2], 0, 2, 2);
|
|
set_ts_e1link(&trx->ts[3], 0, 2, 3);
|
|
set_ts_e1link(&trx->ts[4], 0, 3, 0);
|
|
set_ts_e1link(&trx->ts[5], 0, 3, 1);
|
|
set_ts_e1link(&trx->ts[6], 0, 3, 2);
|
|
set_ts_e1link(&trx->ts[7], 0, 3, 3);
|
|
#ifdef HAVE_TRX1
|
|
/* TRX 1 */
|
|
trx = &bts->trx[1];
|
|
set_ts_e1link(&trx->ts[0], 0, 1, 0xff);
|
|
set_ts_e1link(&trx->ts[1], 0, 2, 1);
|
|
set_ts_e1link(&trx->ts[2], 0, 2, 2);
|
|
set_ts_e1link(&trx->ts[3], 0, 2, 3);
|
|
set_ts_e1link(&trx->ts[4], 0, 3, 0);
|
|
set_ts_e1link(&trx->ts[5], 0, 3, 1);
|
|
set_ts_e1link(&trx->ts[6], 0, 3, 2);
|
|
set_ts_e1link(&trx->ts[7], 0, 3, 3);
|
|
#endif
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int bootstrap_network(void)
|
|
{
|
|
struct gsm_bts *bts;
|
|
|
|
/* initialize our data structures */
|
|
gsmnet = gsm_network_init(2, BTS_TYPE, MCC, MNC);
|
|
if (!gsmnet)
|
|
return -ENOMEM;
|
|
|
|
gsmnet->name_long = "OpenBSC";
|
|
gsmnet->name_short = "OpenBSC";
|
|
|
|
bts = &gsmnet->bts[0];
|
|
bootstrap_bts(bts);
|
|
|
|
if (db_init(database_name)) {
|
|
printf("DB: Failed to init database. Please check the option settings.\n");
|
|
return -1;
|
|
}
|
|
printf("DB: Database initialized.\n");
|
|
|
|
if (db_prepare()) {
|
|
printf("DB: Failed to prepare database.\n");
|
|
return -1;
|
|
}
|
|
printf("DB: Database prepared.\n");
|
|
|
|
telnet_init(gsmnet, 4242);
|
|
|
|
register_signal_handler(SS_NM, nm_sig_cb, NULL);
|
|
|
|
/* E1 mISDN input setup */
|
|
if (BTS_TYPE == GSM_BTS_TYPE_BS11) {
|
|
gsmnet->num_bts = 1;
|
|
return e1_config(bts, cardnr, release_l2);
|
|
} else {
|
|
/* FIXME: do this dynamic */
|
|
bts->ip_access.site_id = 1801;
|
|
bts->ip_access.bts_id = 0;
|
|
bts = &gsmnet->bts[1];
|
|
bootstrap_bts(bts);
|
|
bts->ip_access.site_id = 1800;
|
|
bts->ip_access.bts_id = 0;
|
|
return ipaccess_setup(gsmnet);
|
|
}
|
|
}
|
|
|
|
static void create_pcap_file(char *file)
|
|
{
|
|
mode_t mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH;
|
|
int fd = open(file, O_WRONLY|O_TRUNC|O_CREAT, mode);
|
|
|
|
if (fd < 0) {
|
|
perror("Failed to open file for pcap");
|
|
return;
|
|
}
|
|
|
|
e1_set_pcap_fd(fd);
|
|
}
|
|
|
|
static void print_usage()
|
|
{
|
|
printf("Usage: bsc_hack\n");
|
|
}
|
|
|
|
static void print_help()
|
|
{
|
|
printf(" Some useful help...\n");
|
|
printf(" -d option --debug=DRLL:DCC:DMM:DRR:DRSL:DNM enable debugging\n");
|
|
printf(" -s --disable-color\n");
|
|
printf(" -n --network-code number(MNC) \n");
|
|
printf(" -c --country-code number (MCC) \n");
|
|
printf(" -L --location-area-code number (LAC) \n");
|
|
printf(" -f --arfcn number The frequency ARFCN\n");
|
|
printf(" -l --database db-name The database to use\n");
|
|
printf(" -a --authorize-everyone Allow everyone into the network.\n");
|
|
printf(" -r --reject-cause number The reject cause for LOCATION UPDATING REJECT.\n");
|
|
printf(" -p --pcap file The filename of the pcap file\n");
|
|
printf(" -t --bts-type type The BTS type (bs11, nanobts900, nanobts1800)\n");
|
|
printf(" -C --cardnr number For bs11 select E1 card number other than 0\n");
|
|
printf(" -R --release-l2 Releases mISDN layer 2 after exit, to unload driver.\n");
|
|
printf(" -h --help this text\n");
|
|
}
|
|
|
|
static void handle_options(int argc, char** argv)
|
|
{
|
|
while (1) {
|
|
int option_index = 0, c;
|
|
static struct option long_options[] = {
|
|
{"help", 0, 0, 'h'},
|
|
{"debug", 1, 0, 'd'},
|
|
{"disable-color", 0, 0, 's'},
|
|
{"network-code", 1, 0, 'n'},
|
|
{"country-code", 1, 0, 'c'},
|
|
{"location-area-code", 1, 0, 'L'},
|
|
{"database", 1, 0, 'l'},
|
|
{"authorize-everyone", 0, 0, 'a'},
|
|
{"reject-cause", 1, 0, 'r'},
|
|
{"pcap", 1, 0, 'p'},
|
|
{"arfcn", 1, 0, 'f'},
|
|
{"bts-type", 1, 0, 't'},
|
|
{"cardnr", 1, 0, 'C'},
|
|
{"release-l2", 0, 0, 'R'},
|
|
{"timestamp", 0, 0, 'T'},
|
|
{0, 0, 0, 0}
|
|
};
|
|
|
|
c = getopt_long(argc, argv, "hc:n:d:sar:p:f:t:C:RL:l:T",
|
|
long_options, &option_index);
|
|
if (c == -1)
|
|
break;
|
|
|
|
switch (c) {
|
|
case 'h':
|
|
print_usage();
|
|
print_help();
|
|
exit(0);
|
|
case 's':
|
|
debug_use_color(0);
|
|
break;
|
|
case 'd':
|
|
debug_parse_category_mask(optarg);
|
|
break;
|
|
case 'n':
|
|
MNC = atoi(optarg);
|
|
break;
|
|
case 'c':
|
|
MCC = atoi(optarg);
|
|
break;
|
|
case 'L':
|
|
LAC = atoi(optarg);
|
|
break;
|
|
case 'f':
|
|
ARFCN = atoi(optarg);
|
|
break;
|
|
case 'l':
|
|
database_name = strdup(optarg);
|
|
break;
|
|
case 'a':
|
|
gsm0408_allow_everyone(1);
|
|
break;
|
|
case 'r':
|
|
gsm0408_set_reject_cause(atoi(optarg));
|
|
break;
|
|
case 'p':
|
|
create_pcap_file(optarg);
|
|
break;
|
|
case 't':
|
|
BTS_TYPE = parse_btstype(optarg);
|
|
break;
|
|
case 'C':
|
|
cardnr = atoi(optarg);
|
|
break;
|
|
case 'R':
|
|
release_l2 = 1;
|
|
break;
|
|
case 'T':
|
|
debug_timestamp(1);
|
|
break;
|
|
default:
|
|
/* ignore */
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void signal_handler(int signal)
|
|
{
|
|
fprintf(stdout, "signal %u received\n", signal);
|
|
|
|
switch (signal) {
|
|
case SIGHUP:
|
|
case SIGABRT:
|
|
shutdown_net(gsmnet);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
int rc;
|
|
|
|
/* parse options */
|
|
handle_options(argc, argv);
|
|
|
|
/* seed the PRNG */
|
|
srand(time(NULL));
|
|
|
|
rc = bootstrap_network();
|
|
if (rc < 0)
|
|
exit(1);
|
|
|
|
signal(SIGHUP, &signal_handler);
|
|
signal(SIGABRT, &signal_handler);
|
|
|
|
while (1) {
|
|
bsc_select_main(0);
|
|
}
|
|
}
|