osmo-bsc/src/osmo-bsc/osmo_bsc_main.c

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/* (C) 2008-2009 by Harald Welte <laforge@gnumonks.org>
* (C) 2009-2011 by Holger Hans Peter Freyther <zecke@selfish.org>
* (C) 2009-2011 by On-Waves
* All Rights Reserved
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation; either version 3 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
introduce an osmo_fsm for gsm_subscriber_connection In the current implementation of osmo-bsc, the subscriber connection is not handled (very) statefully. However, there is some state keeping in the code that handles the mgcp connection, but there are still to much loose ends which allow odd situations to happen, which then lead severe error situations (see also closes tags at the end) This commit adds a number of improvements to fix those problems. - Use an osmo-fsm to control the gsm_subscriber_connection state and make sure that certain operations can only take place at certain states (e.g let connection oriented SCCP traffic only pass when an SCCP connection actually exists. Remove the old osmo_bsc_mgcp.c code. Use the recently developed MGCP client FSM to handle the MGCP connections. Also make sure that stuff that already works does not break. This in particular refers to the internal handover capability and the respective unit-tests. See also OS#2823, OS#2768 and OS#2898 - Fix logic to permit assignment to a signalling channel. (OS#2762) - Introduce T993210 to release lchan + subscr_conn if MSC fails to respond The GSM specs don't have an explicit timer for this, so let's introdcue a custom timer (hence starting with 99). This timeout catches the following situation: * we send a SCCP CR with COMPL_L3_INFO from the MS to the MSC, * the MSC doesn't respond (e.g. SCCP routing failure, program down, ...) The MS is supposed to timeout with T3210, 3220 or 3230. But the BSC shouldn't trust the MS but have some timer on its own. SCCP would have a timer T(conn est), but that one is specified to be 1-2min and hence rather long. See also: OS#2775 - Terminate bsc_subscr_conn_fsm on SCCP N-DISC.ind from MSC If the MSC is disconnecting the SCCP channel, we must terminate the FSM which in turn will release all lchan's and other state. This makes TC_chan_rel_hard_rlsd pass, see also OS#2731 As a side-effect, this fixes TC_chan_act_ack_est_ind_refused(), where the MSC is answering with CREF to our CR/COMPL_L3. - Release subscriber connection on RLL RELEASE IND of SAPI0 on main DCCH The subscriber connection isn't really useful for anything after the SAPI0 main signalling link has been released. We could try to re-establish, but our best option is probably simply releasing the subscriber_conn and anything related to it. This will make TC_chan_rel_rll_rel_ind pass, see also OS#2730 This commit has been tested using the BSC_Tests TTCN3 testsuit and the following tests were passed: TC_chan_act_noreply TC_chan_act_ack_noest TC_chan_act_ack_est_ind_noreply TC_chan_act_ack_est_ind_refused TC_chan_act_nack TC_chan_exhaustion TC_ctrl TC_chan_rel_conn_fail TC_chan_rel_hard_clear TC_chan_rel_hard_rlsd TC_chan_rel_a_reset TC_rll_est_ind_inact_lchan TC_rll_est_ind_inval_sapi1 TC_rll_est_ind_inval_sapi3 TC_rll_est_ind_inval_sacch TC_assignment_cic_only TC_assignment_csd TC_assignment_ctm TC_assignment_fr_a5_0 TC_assignment_fr_a5_1_codec_missing TC_assignment_fr_a5_1 TC_assignment_fr_a5_3 TC_assignment_fr_a5_4 TC_paging_imsi_nochan TC_paging_tmsi_nochan TC_paging_tmsi_any TC_paging_tmsi_sdcch TC_paging_tmsi_tch_f TC_paging_tmsi_tch_hf TC_paging_imsi_nochan_cgi TC_paging_imsi_nochan_lac_ci TC_paging_imsi_nochan_ci TC_paging_imsi_nochan_lai TC_paging_imsi_nochan_lac TC_paging_imsi_nochan_all TC_paging_imsi_nochan_plmn_lac_rnc TC_paging_imsi_nochan_rnc TC_paging_imsi_nochan_lac_rnc TC_paging_imsi_nochan_lacs TC_paging_imsi_nochan_lacs_empty TC_paging_imsi_a_reset TC_paging_counter TC_rsl_drop_counter TC_classmark TC_unsol_ass_fail TC_unsol_ass_compl TC_unsol_ho_fail TC_err_82_short_msg TC_ho_int Authors: Harald Welte <laforge@gnumonks.org> Philipp Maier <pmaier@sysmocom.de> Neels Hofmeyr <neels@hofmeyr.de> Closes: OS#2730 Closes: OS#2731 Closes: OS#2762 Closes: OS#2768 Closes: OS#2775 Closes: OS#2823 Closes: OS#2898 Closes: OS#2936 Change-Id: I68286d26e2014048b054f39ef29c35fef420cc97
2018-01-28 02:04:16 +00:00
* along with this program. If not, see <http://www.gnu.org/lienses/>.
*
*/
#include <osmocom/bsc/bss.h>
#include <osmocom/bsc/debug.h>
#include <osmocom/bsc/gsm_data.h>
#include <osmocom/bsc/osmo_bsc.h>
#include <osmocom/bsc/osmo_bsc_rf.h>
#include <osmocom/bsc/bsc_msc_data.h>
#include <osmocom/bsc/signal.h>
#include <osmocom/bsc/vty.h>
#include <osmocom/bsc/ipaccess.h>
#include <osmocom/bsc/ctrl.h>
#include <osmocom/bsc/osmo_bsc_sigtran.h>
#include <osmocom/bsc/handover_decision.h>
#include <osmocom/bsc/handover_decision_2.h>
large refactoring: use FSMs for lchans; add inter-BSC HO Add FSMs: - timeslot_fsm: handle dynamic timeslots and OML+RSL availability. - lchan_fsm: handle an individual lchan activation, RTP stream and release, signal the appropriate calling FSMs on success, failure, release. - mgw_endpoint_fsm: handle one entire endpoint with several CI. - assignment_fsm: BSSMAP Assignment Request. - handover_fsm: all of intra, inter-MO and inter-MT handover. Above FSMs absorb large parts of the gscon FSM. The gscon FSM was surpassing the maximum amount events (32), and it is more logical to treat assignment, handover and MGW procedures in separate FSMs. - Add logging macros for each FSM type: - LOG_TS() - LOG_LCHAN() - LOG_MGWEP(), LOG_CI() - LOG_ASSIGNMENT() - LOG_HO() These log with the osmo_fsm_inst where present. New style decision: logging without a final newline char is awkward, especially for gsmtap logging and when other logs interleave LOGPC() calls; we have various cases where the final \n goes missing, and also this invokes the log category checking N times instead of once. So I decided to make these macros *always* append a newline, but only if there is no final newline yet. I hope that the compiler optimizes the strlen() of the constant format strings away. Thus I can log with or without typing "\n" and always get an \n termination anyway. General: - replace osmo_timers, state enums and program-wide osmo_signal_dispatch() with dedicated FSM timeouts, states and events. - introduce a common way to handle Tnnn timers: gsm_timers.h/.c: struct T_def. These can be used (with some macro magic) to define a state's timeout once, and not make mistakes for each osmo_fsm_inst_state_chg(). Details: bsc_subscr_conn_fsm.c: - move most states of this FSM to lchan_fsm, assignment_fsm, handover_fsm and mgw_endpoint_fsm. - There is exactly one state for an ongoing Assignment, with all details handled in conn->assignment.fi. The state relies on the assignment_fsm's timeout. - There is one state for an ongoing Handover; except for an incoming Handover from a remote BSS, the gscon remains in ST_INIT until the new lchan and conn are both established. - move bssmap_add_lcls_status() to osmo_bsc_lcls.c abis_rsl.c: - move all dynamic timeslot logic away into timeslot_fsm. Only keep plain send/receive functions in abis_rsl.c - reduce some rsl functions to merely send a message, rename to "_tx_". - rsl_ipacc_mdcx(): add '_tx_' in the name; move parts that change the lchan state out into the lchan_fsm, the lchan->abis_ip.* are now set there prior to invoking this function. - move all timers and error/release handling away into various FSMs. - tweak ipa_smod_s_for_lchan() and ipa_rtp_pt_for_lchan() to not require an lchan passed, but just mode,type that they require. Rename to ipacc_speech_mode*() and ipacc_payload_type(). - add rsl_forward_layer3_info, used for inter-BSC HO MO, to just send the RR message received during BSSMAP Handover Command. - move various logging to LOG_LCHAN() in order to log with the lchan FSM instance. One drawback is that the lchan FSM is limited to one logging category, i.e. this moves some logging from DRR to DRSL. It might actually make sense to combine those categories. - lose LOGP...LOGPC logging cascades: they are bad for gsmtap logging and for performance. - handle_classmark_chg(): change logging, move cm2 len check out of the cm3 condition (I hope that's correct). - gsm48_send_ho_cmd(): split off gsm48_make_ho_cmd() which doesn't send right away, so that during inter-bsc HO we can make an RR Handover Command to send via the MSC to the remote BSS. assignment_fsm.c: - the Chan Mode Modify in case of re-using the same lchan is not implemented yet, because this was also missing in the previous implementation (OS#3357). osmo_bsc_api.c: - simplify bsc_mr_config() and move to lchan_fsm.c, the only caller; rename to lchan_mr_config(). (bsc_mr_config() used to copy the values to mr_bts_lv twice, once by member assignment and then again with a memcpy.) - During handover, we used to copy the MR config from the old lchan. Since we may handover between FR and HR, rather set the MR Config anew every time, so that FR rates are always available on FR lchans, and never on HR lchans. Depends: I03ee7ce840ecfa0b6a33358e7385528aabd4873f (libosmocore), I1f2918418c38918c5ac70acaa51a47adfca12b5e (libosmocore) Change-Id: I82e3f918295daa83274a4cf803f046979f284366
2018-05-14 16:14:15 +00:00
#include <osmocom/bsc/timeslot_fsm.h>
#include <osmocom/bsc/lchan_fsm.h>
#include <osmocom/bsc/bsc_subscr_conn_fsm.h>
#include <osmocom/bsc/bsc_subscriber.h>
large refactoring: use FSMs for lchans; add inter-BSC HO Add FSMs: - timeslot_fsm: handle dynamic timeslots and OML+RSL availability. - lchan_fsm: handle an individual lchan activation, RTP stream and release, signal the appropriate calling FSMs on success, failure, release. - mgw_endpoint_fsm: handle one entire endpoint with several CI. - assignment_fsm: BSSMAP Assignment Request. - handover_fsm: all of intra, inter-MO and inter-MT handover. Above FSMs absorb large parts of the gscon FSM. The gscon FSM was surpassing the maximum amount events (32), and it is more logical to treat assignment, handover and MGW procedures in separate FSMs. - Add logging macros for each FSM type: - LOG_TS() - LOG_LCHAN() - LOG_MGWEP(), LOG_CI() - LOG_ASSIGNMENT() - LOG_HO() These log with the osmo_fsm_inst where present. New style decision: logging without a final newline char is awkward, especially for gsmtap logging and when other logs interleave LOGPC() calls; we have various cases where the final \n goes missing, and also this invokes the log category checking N times instead of once. So I decided to make these macros *always* append a newline, but only if there is no final newline yet. I hope that the compiler optimizes the strlen() of the constant format strings away. Thus I can log with or without typing "\n" and always get an \n termination anyway. General: - replace osmo_timers, state enums and program-wide osmo_signal_dispatch() with dedicated FSM timeouts, states and events. - introduce a common way to handle Tnnn timers: gsm_timers.h/.c: struct T_def. These can be used (with some macro magic) to define a state's timeout once, and not make mistakes for each osmo_fsm_inst_state_chg(). Details: bsc_subscr_conn_fsm.c: - move most states of this FSM to lchan_fsm, assignment_fsm, handover_fsm and mgw_endpoint_fsm. - There is exactly one state for an ongoing Assignment, with all details handled in conn->assignment.fi. The state relies on the assignment_fsm's timeout. - There is one state for an ongoing Handover; except for an incoming Handover from a remote BSS, the gscon remains in ST_INIT until the new lchan and conn are both established. - move bssmap_add_lcls_status() to osmo_bsc_lcls.c abis_rsl.c: - move all dynamic timeslot logic away into timeslot_fsm. Only keep plain send/receive functions in abis_rsl.c - reduce some rsl functions to merely send a message, rename to "_tx_". - rsl_ipacc_mdcx(): add '_tx_' in the name; move parts that change the lchan state out into the lchan_fsm, the lchan->abis_ip.* are now set there prior to invoking this function. - move all timers and error/release handling away into various FSMs. - tweak ipa_smod_s_for_lchan() and ipa_rtp_pt_for_lchan() to not require an lchan passed, but just mode,type that they require. Rename to ipacc_speech_mode*() and ipacc_payload_type(). - add rsl_forward_layer3_info, used for inter-BSC HO MO, to just send the RR message received during BSSMAP Handover Command. - move various logging to LOG_LCHAN() in order to log with the lchan FSM instance. One drawback is that the lchan FSM is limited to one logging category, i.e. this moves some logging from DRR to DRSL. It might actually make sense to combine those categories. - lose LOGP...LOGPC logging cascades: they are bad for gsmtap logging and for performance. - handle_classmark_chg(): change logging, move cm2 len check out of the cm3 condition (I hope that's correct). - gsm48_send_ho_cmd(): split off gsm48_make_ho_cmd() which doesn't send right away, so that during inter-bsc HO we can make an RR Handover Command to send via the MSC to the remote BSS. assignment_fsm.c: - the Chan Mode Modify in case of re-using the same lchan is not implemented yet, because this was also missing in the previous implementation (OS#3357). osmo_bsc_api.c: - simplify bsc_mr_config() and move to lchan_fsm.c, the only caller; rename to lchan_mr_config(). (bsc_mr_config() used to copy the values to mr_bts_lv twice, once by member assignment and then again with a memcpy.) - During handover, we used to copy the MR config from the old lchan. Since we may handover between FR and HR, rather set the MR Config anew every time, so that FR rates are always available on FR lchans, and never on HR lchans. Depends: I03ee7ce840ecfa0b6a33358e7385528aabd4873f (libosmocore), I1f2918418c38918c5ac70acaa51a47adfca12b5e (libosmocore) Change-Id: I82e3f918295daa83274a4cf803f046979f284366
2018-05-14 16:14:15 +00:00
#include <osmocom/bsc/assignment_fsm.h>
#include <osmocom/bsc/handover_fsm.h>
#include <osmocom/bsc/smscb.h>
#include <osmocom/ctrl/control_cmd.h>
#include <osmocom/ctrl/control_if.h>
#include <osmocom/ctrl/ports.h>
#include <osmocom/ctrl/control_vty.h>
#include <osmocom/core/application.h>
#include <osmocom/core/linuxlist.h>
#include <osmocom/core/talloc.h>
#include <osmocom/core/stats.h>
#include <osmocom/gsm/protocol/gsm_12_21.h>
dissolve libbsc: move all to src/osmo-bsc, link .o files Move all of libbsc/ into osmo-bsc/, and separate/move some implementations to allow linking from utils/* and ipaccess/* without pulling in unccessary dependencies. Some utilities use gsm_network and gsm_bts structs, which already include data structures for fairly advanced uses. Move initialization that only osmo-bsc needs into new bsc_network_init() and bsc_bts_alloc_register() functions, so that the leaner tools can use the old gsm_* versions without the need to link everything (e.g. handover and lchan alloc code). In some instances, there need to be stubs if to cut off linking "just before the RSL level" and prevent dependencies from creeping in. - abis_rsl_rcvmsg(): the only program currently interpreting RSL messages is osmo-bsc, the utils are merely concerned with OML, if at all. - paging_flush_bts(): ip.access nanobts models call this when the RSL link is dropped. Only osmo-bsc actually needs to do anything there. - on_gsm_ts_init(): the mechanism to trigger timeslot initialization is related to OML, while this action to take on init would pull in RSL dependencies. utils/ and ipaccess/ each have a stubs.c file to implement these stubs. Tests implement stubs inline where required. From src/utils/, src/ipaccess/ and tests/*/, link in .o files from osmo-bsc/. In order for this to work, the osmo-bsc subdir must be built before the other source trees. (An alternative would be to include the .c files as sources, but that would re-compile them in every source tree. Not a large burden really, but unless linking .o files gives problems, let's have the quicker build.) Minor obvious cleanups creep in with this patch, I will not bother to name them individually now unless code review asks me to. Rationale: 1) libbsc has been separate to use it for osmo-nitb and osmo-bsc in the old openbsc.git. This is no longer required, and spreading over libbsc and osmo-bsc is distracting. 2) Recently, ridiculous linking requirements have made adding new functions cumbersome, because libbsc has started depending on osmo-bsc/*.c implementations: on gscon FSM and bssap functions. For example, neither bs11_config nor ipaccess-config nor bts_test need handover_cfg or BSSMAP message composition. It makes no sense to link the entire osmo-bsc to it, nor do we want to keep adding stubs to each linking realm. Change-Id: I36a586726f5818121abe54d25654819fc451d3bf
2018-05-26 23:26:31 +00:00
#include <osmocom/vty/telnet_interface.h>
#include <osmocom/vty/ports.h>
#include <osmocom/vty/logging.h>
#include <osmocom/vty/command.h>
#include <osmocom/vty/cpu_sched_vty.h>
#include <osmocom/mgcp_client/mgcp_client_endpoint_fsm.h>
#include <osmocom/abis/abis.h>
#include <osmocom/bsc/abis_om2000.h>
dissolve libbsc: move all to src/osmo-bsc, link .o files Move all of libbsc/ into osmo-bsc/, and separate/move some implementations to allow linking from utils/* and ipaccess/* without pulling in unccessary dependencies. Some utilities use gsm_network and gsm_bts structs, which already include data structures for fairly advanced uses. Move initialization that only osmo-bsc needs into new bsc_network_init() and bsc_bts_alloc_register() functions, so that the leaner tools can use the old gsm_* versions without the need to link everything (e.g. handover and lchan alloc code). In some instances, there need to be stubs if to cut off linking "just before the RSL level" and prevent dependencies from creeping in. - abis_rsl_rcvmsg(): the only program currently interpreting RSL messages is osmo-bsc, the utils are merely concerned with OML, if at all. - paging_flush_bts(): ip.access nanobts models call this when the RSL link is dropped. Only osmo-bsc actually needs to do anything there. - on_gsm_ts_init(): the mechanism to trigger timeslot initialization is related to OML, while this action to take on init would pull in RSL dependencies. utils/ and ipaccess/ each have a stubs.c file to implement these stubs. Tests implement stubs inline where required. From src/utils/, src/ipaccess/ and tests/*/, link in .o files from osmo-bsc/. In order for this to work, the osmo-bsc subdir must be built before the other source trees. (An alternative would be to include the .c files as sources, but that would re-compile them in every source tree. Not a large burden really, but unless linking .o files gives problems, let's have the quicker build.) Minor obvious cleanups creep in with this patch, I will not bother to name them individually now unless code review asks me to. Rationale: 1) libbsc has been separate to use it for osmo-nitb and osmo-bsc in the old openbsc.git. This is no longer required, and spreading over libbsc and osmo-bsc is distracting. 2) Recently, ridiculous linking requirements have made adding new functions cumbersome, because libbsc has started depending on osmo-bsc/*.c implementations: on gscon FSM and bssap functions. For example, neither bs11_config nor ipaccess-config nor bts_test need handover_cfg or BSSMAP message composition. It makes no sense to link the entire osmo-bsc to it, nor do we want to keep adding stubs to each linking realm. Change-Id: I36a586726f5818121abe54d25654819fc451d3bf
2018-05-26 23:26:31 +00:00
#include <osmocom/bsc/abis_nm.h>
#include <osmocom/bsc/abis_rsl.h>
#include <osmocom/bsc/chan_alloc.h>
#include <osmocom/bsc/e1_config.h>
#include <osmocom/bsc/codec_pref.h>
#include <osmocom/bsc/system_information.h>
#include <osmocom/bsc/bts.h>
#include <osmocom/mgcp_client/mgcp_client.h>
#include <osmocom/sigtran/xua_msg.h>
#define _GNU_SOURCE
#include <getopt.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <unistd.h>
2011-03-04 12:53:51 +00:00
#include "../../bscconfig.h"
struct gsm_network *bsc_gsmnet = 0;
static const char *config_file = "osmo-bsc.cfg";
static const char *rf_ctrl = NULL;
static int daemonize = 0;
static void print_usage()
{
printf("Usage: osmo-bsc\n");
}
static void print_help()
{
printf(" Some useful help...\n");
printf(" -h --help This text.\n");
printf(" -D --daemonize Fork the process into a background daemon.\n");
printf(" -d --debug option --debug=DRLL:DMM:DRR:DRSL:DNM enable debugging.\n");
printf(" -s --disable-color Disable coloring log in stderr.\n");
printf(" -T --timestamp Print a timestamp in the debug output.\n");
printf(" -V --version Print the version of OsmoBSC.\n");
printf(" -c --config-file filename The config file to use.\n");
printf(" -l --local IP The local address of the MGCP.\n");
printf(" -e --log-level number Set a global loglevel.\n");
printf(" -r --rf-ctl NAME A unix domain socket to listen for cmds.\n");
printf(" -t --testmode A special mode to provoke failures at the MSC.\n");
printf(" --vty-ref-xml Generate the VTY reference XML output and exit.\n");
}
static void handle_options(int argc, char **argv)
{
while (1) {
int option_index = 0, c;
static int long_option = 0;
static struct option long_options[] = {
{"help", 0, 0, 'h'},
{"debug", 1, 0, 'd'},
{"daemonize", 0, 0, 'D'},
{"config-file", 1, 0, 'c'},
{"disable-color", 0, 0, 's'},
{"timestamp", 0, 0, 'T'},
{"version", 0, 0, 'V' },
{"local", 1, 0, 'l'},
{"log-level", 1, 0, 'e'},
{"rf-ctl", 1, 0, 'r'},
{"testmode", 0, 0, 't'},
{"vty-ref-xml", 0, &long_option, 1},
{0, 0, 0, 0}
};
c = getopt_long(argc, argv, "hd:DsTVc:e:r:t",
long_options, &option_index);
if (c == -1)
break;
switch (c) {
case 'h':
print_usage();
print_help();
exit(0);
case 0:
switch (long_option) {
case 1:
vty_dump_xml_ref(stdout);
exit(0);
default:
fprintf(stderr, "error parsing cmdline options\n");
exit(2);
}
case 's':
log_set_use_color(osmo_stderr_target, 0);
break;
case 'd':
log_parse_category_mask(osmo_stderr_target, optarg);
break;
case 'D':
daemonize = 1;
break;
case 'c':
config_file = optarg;
break;
case 'T':
log_set_print_timestamp(osmo_stderr_target, 1);
break;
case 'V':
print_version(1);
exit(0);
break;
case 'e':
log_set_log_level(osmo_stderr_target, atoi(optarg));
break;
case 'r':
rf_ctrl = optarg;
break;
default:
/* catch unknown options *as well as* missing arguments. */
fprintf(stderr, "Error in command line options. Exiting.\n");
exit(-1);
}
}
if (argc > optind) {
fprintf(stderr, "Unsupported positional arguments on command line\n");
exit(2);
}
}
dissolve libbsc: move all to src/osmo-bsc, link .o files Move all of libbsc/ into osmo-bsc/, and separate/move some implementations to allow linking from utils/* and ipaccess/* without pulling in unccessary dependencies. Some utilities use gsm_network and gsm_bts structs, which already include data structures for fairly advanced uses. Move initialization that only osmo-bsc needs into new bsc_network_init() and bsc_bts_alloc_register() functions, so that the leaner tools can use the old gsm_* versions without the need to link everything (e.g. handover and lchan alloc code). In some instances, there need to be stubs if to cut off linking "just before the RSL level" and prevent dependencies from creeping in. - abis_rsl_rcvmsg(): the only program currently interpreting RSL messages is osmo-bsc, the utils are merely concerned with OML, if at all. - paging_flush_bts(): ip.access nanobts models call this when the RSL link is dropped. Only osmo-bsc actually needs to do anything there. - on_gsm_ts_init(): the mechanism to trigger timeslot initialization is related to OML, while this action to take on init would pull in RSL dependencies. utils/ and ipaccess/ each have a stubs.c file to implement these stubs. Tests implement stubs inline where required. From src/utils/, src/ipaccess/ and tests/*/, link in .o files from osmo-bsc/. In order for this to work, the osmo-bsc subdir must be built before the other source trees. (An alternative would be to include the .c files as sources, but that would re-compile them in every source tree. Not a large burden really, but unless linking .o files gives problems, let's have the quicker build.) Minor obvious cleanups creep in with this patch, I will not bother to name them individually now unless code review asks me to. Rationale: 1) libbsc has been separate to use it for osmo-nitb and osmo-bsc in the old openbsc.git. This is no longer required, and spreading over libbsc and osmo-bsc is distracting. 2) Recently, ridiculous linking requirements have made adding new functions cumbersome, because libbsc has started depending on osmo-bsc/*.c implementations: on gscon FSM and bssap functions. For example, neither bs11_config nor ipaccess-config nor bts_test need handover_cfg or BSSMAP message composition. It makes no sense to link the entire osmo-bsc to it, nor do we want to keep adding stubs to each linking realm. Change-Id: I36a586726f5818121abe54d25654819fc451d3bf
2018-05-26 23:26:31 +00:00
/* Callback function for NACK on the OML NM */
static int oml_msg_nack(struct nm_nack_signal_data *nack)
{
if (nack->mt == NM_MT_GET_ATTR_NACK) {
LOGP(DNM, LOGL_ERROR, "BTS%u does not support Get Attributes "
"OML message.\n", nack->bts->nr);
return 0;
}
if (nack->mt == NM_MT_SET_BTS_ATTR_NACK)
LOGP(DNM, LOGL_ERROR, "Failed to set BTS attributes. That is fatal. "
"Was the bts type and frequency properly specified?\n");
else
LOGP(DNM, LOGL_ERROR, "Got %s NACK going to drop the OML links.\n",
abis_nm_nack_name(nack->mt));
if (!nack->bts) {
LOGP(DNM, LOGL_ERROR, "Unknown bts. Can not drop it.\n");
return 0;
}
if (is_ipaccess_bts(nack->bts))
Fix heap-use-after-free due to OML link destruction ipaccess_drop_oml was being called inside an osmo_fd cb context, were -EBADF must be returned if the structure holding the osmo_fd is freed. In the middle of the path (see OS#3495 for path tree) it goes through a signal dispatch, so it's impossible to make sure we return some value to the osmo_fd cb. As a result, it is required to defer dropping the OML Link from current code path and do it through a timer. Fixes following ASan report: 20180822124927913 <0004> abis_nm.c:787 OC=RADIO-CARRIER(02) INST=(00,00,ff): CHANGE ADMINISTRATIVE STATE NACK CAUSE=Message cannot be performed 20180822124927913 <0004> osmo_bsc_main.c:186 Got CHANGE ADMINISTRATIVE STATE NACK going to drop the OML links. 20180822124927913 <0015> bts_ipaccess_nanobts.c:406 (bts=0) Dropping OML link. ... ================================================================= ==17607==ERROR: AddressSanitizer: heap-use-after-free on address 0x62e000060a68 at pc 0x7f5ea8e27086 bp 0x7ffde92b6d80 sp 0x7ffde92b6d78 READ of size 8 at 0x62e000060a68 thread T0 #0 0x7f5ea8e27085 in handle_ts1_write input/ipaccess.c:371 #1 0x7f5ea8e27085 in ipaccess_fd_cb input/ipaccess.c:391 #2 0x7f5ea9147ca8 in osmo_fd_disp_fds libosmocore/src/select.c:217 #3 0x7f5ea9147ca8 in osmo_select_main libosmocore/src/select.c:257 #4 0x555813ab79d6 in main osmo-bsc/osmo_bsc_main.c:922 #5 0x7f5ea76d02e0 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x202e0) #6 0x555813ab84e9 in _start (/bin/osmo-bsc+0x34d4e9) Fixes: OS#3495 Change-Id: I7c794c763481c28e8c35dc9b11d27969e16feb3c
2018-08-22 19:54:12 +00:00
ipaccess_drop_oml_deferred(nack->bts);
dissolve libbsc: move all to src/osmo-bsc, link .o files Move all of libbsc/ into osmo-bsc/, and separate/move some implementations to allow linking from utils/* and ipaccess/* without pulling in unccessary dependencies. Some utilities use gsm_network and gsm_bts structs, which already include data structures for fairly advanced uses. Move initialization that only osmo-bsc needs into new bsc_network_init() and bsc_bts_alloc_register() functions, so that the leaner tools can use the old gsm_* versions without the need to link everything (e.g. handover and lchan alloc code). In some instances, there need to be stubs if to cut off linking "just before the RSL level" and prevent dependencies from creeping in. - abis_rsl_rcvmsg(): the only program currently interpreting RSL messages is osmo-bsc, the utils are merely concerned with OML, if at all. - paging_flush_bts(): ip.access nanobts models call this when the RSL link is dropped. Only osmo-bsc actually needs to do anything there. - on_gsm_ts_init(): the mechanism to trigger timeslot initialization is related to OML, while this action to take on init would pull in RSL dependencies. utils/ and ipaccess/ each have a stubs.c file to implement these stubs. Tests implement stubs inline where required. From src/utils/, src/ipaccess/ and tests/*/, link in .o files from osmo-bsc/. In order for this to work, the osmo-bsc subdir must be built before the other source trees. (An alternative would be to include the .c files as sources, but that would re-compile them in every source tree. Not a large burden really, but unless linking .o files gives problems, let's have the quicker build.) Minor obvious cleanups creep in with this patch, I will not bother to name them individually now unless code review asks me to. Rationale: 1) libbsc has been separate to use it for osmo-nitb and osmo-bsc in the old openbsc.git. This is no longer required, and spreading over libbsc and osmo-bsc is distracting. 2) Recently, ridiculous linking requirements have made adding new functions cumbersome, because libbsc has started depending on osmo-bsc/*.c implementations: on gscon FSM and bssap functions. For example, neither bs11_config nor ipaccess-config nor bts_test need handover_cfg or BSSMAP message composition. It makes no sense to link the entire osmo-bsc to it, nor do we want to keep adding stubs to each linking realm. Change-Id: I36a586726f5818121abe54d25654819fc451d3bf
2018-05-26 23:26:31 +00:00
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)
{
struct nm_nack_signal_data *nack;
switch (signal) {
case S_NM_NACK:
nack = signal_data;
return oml_msg_nack(nack);
default:
break;
}
return 0;
}
/* Produce a MA as specified in 10.5.2.21 */
static int generate_ma_for_ts(struct gsm_bts_trx_ts *ts)
{
/* we have three bitvecs: the per-timeslot ARFCNs, the cell chan ARFCNs
* and the MA */
const struct bitvec *cell_chan = &ts->trx->bts->si_common.cell_alloc;
const struct bitvec *ts_arfcn = &ts->hopping.arfcns;
dissolve libbsc: move all to src/osmo-bsc, link .o files Move all of libbsc/ into osmo-bsc/, and separate/move some implementations to allow linking from utils/* and ipaccess/* without pulling in unccessary dependencies. Some utilities use gsm_network and gsm_bts structs, which already include data structures for fairly advanced uses. Move initialization that only osmo-bsc needs into new bsc_network_init() and bsc_bts_alloc_register() functions, so that the leaner tools can use the old gsm_* versions without the need to link everything (e.g. handover and lchan alloc code). In some instances, there need to be stubs if to cut off linking "just before the RSL level" and prevent dependencies from creeping in. - abis_rsl_rcvmsg(): the only program currently interpreting RSL messages is osmo-bsc, the utils are merely concerned with OML, if at all. - paging_flush_bts(): ip.access nanobts models call this when the RSL link is dropped. Only osmo-bsc actually needs to do anything there. - on_gsm_ts_init(): the mechanism to trigger timeslot initialization is related to OML, while this action to take on init would pull in RSL dependencies. utils/ and ipaccess/ each have a stubs.c file to implement these stubs. Tests implement stubs inline where required. From src/utils/, src/ipaccess/ and tests/*/, link in .o files from osmo-bsc/. In order for this to work, the osmo-bsc subdir must be built before the other source trees. (An alternative would be to include the .c files as sources, but that would re-compile them in every source tree. Not a large burden really, but unless linking .o files gives problems, let's have the quicker build.) Minor obvious cleanups creep in with this patch, I will not bother to name them individually now unless code review asks me to. Rationale: 1) libbsc has been separate to use it for osmo-nitb and osmo-bsc in the old openbsc.git. This is no longer required, and spreading over libbsc and osmo-bsc is distracting. 2) Recently, ridiculous linking requirements have made adding new functions cumbersome, because libbsc has started depending on osmo-bsc/*.c implementations: on gscon FSM and bssap functions. For example, neither bs11_config nor ipaccess-config nor bts_test need handover_cfg or BSSMAP message composition. It makes no sense to link the entire osmo-bsc to it, nor do we want to keep adding stubs to each linking realm. Change-Id: I36a586726f5818121abe54d25654819fc451d3bf
2018-05-26 23:26:31 +00:00
struct bitvec *ma = &ts->hopping.ma;
unsigned int num_cell_arfcns, bitnum, n_chan;
int i;
/* re-set the MA to all-zero */
ma->cur_bit = 0;
ts->hopping.ma_len = 0;
memset(ma->data, 0, ma->data_len);
if (!ts->hopping.enabled)
return 0;
/* count the number of ARFCNs in the cell channel allocation */
num_cell_arfcns = 0;
for (i = 0; i < 1024; i++) {
if (bitvec_get_bit_pos(cell_chan, i))
num_cell_arfcns++;
}
/* pad it to octet-aligned number of bits */
ts->hopping.ma_len = num_cell_arfcns / 8;
if (num_cell_arfcns % 8)
ts->hopping.ma_len++;
n_chan = 0;
for (i = 0; i < 1024; i++) {
if (!bitvec_get_bit_pos(cell_chan, i))
continue;
/* set the corresponding bit in the MA */
bitnum = (ts->hopping.ma_len * 8) - 1 - n_chan;
if (bitvec_get_bit_pos(ts_arfcn, i))
bitvec_set_bit_pos(ma, bitnum, 1);
else
bitvec_set_bit_pos(ma, bitnum, 0);
n_chan++;
}
/* ARFCN 0 is special: It is coded last in the bitmask */
if (bitvec_get_bit_pos(cell_chan, 0)) {
n_chan++;
/* set the corresponding bit in the MA */
bitnum = (ts->hopping.ma_len * 8) - 1 - n_chan;
if (bitvec_get_bit_pos(ts_arfcn, 0))
bitvec_set_bit_pos(ma, bitnum, 1);
else
bitvec_set_bit_pos(ma, bitnum, 0);
}
return 0;
}
static void bootstrap_rsl(struct gsm_bts_trx *trx)
{
unsigned int i;
LOG_TRX(trx, DRSL, LOGL_NOTICE, "bootstrapping RSL "
dissolve libbsc: move all to src/osmo-bsc, link .o files Move all of libbsc/ into osmo-bsc/, and separate/move some implementations to allow linking from utils/* and ipaccess/* without pulling in unccessary dependencies. Some utilities use gsm_network and gsm_bts structs, which already include data structures for fairly advanced uses. Move initialization that only osmo-bsc needs into new bsc_network_init() and bsc_bts_alloc_register() functions, so that the leaner tools can use the old gsm_* versions without the need to link everything (e.g. handover and lchan alloc code). In some instances, there need to be stubs if to cut off linking "just before the RSL level" and prevent dependencies from creeping in. - abis_rsl_rcvmsg(): the only program currently interpreting RSL messages is osmo-bsc, the utils are merely concerned with OML, if at all. - paging_flush_bts(): ip.access nanobts models call this when the RSL link is dropped. Only osmo-bsc actually needs to do anything there. - on_gsm_ts_init(): the mechanism to trigger timeslot initialization is related to OML, while this action to take on init would pull in RSL dependencies. utils/ and ipaccess/ each have a stubs.c file to implement these stubs. Tests implement stubs inline where required. From src/utils/, src/ipaccess/ and tests/*/, link in .o files from osmo-bsc/. In order for this to work, the osmo-bsc subdir must be built before the other source trees. (An alternative would be to include the .c files as sources, but that would re-compile them in every source tree. Not a large burden really, but unless linking .o files gives problems, let's have the quicker build.) Minor obvious cleanups creep in with this patch, I will not bother to name them individually now unless code review asks me to. Rationale: 1) libbsc has been separate to use it for osmo-nitb and osmo-bsc in the old openbsc.git. This is no longer required, and spreading over libbsc and osmo-bsc is distracting. 2) Recently, ridiculous linking requirements have made adding new functions cumbersome, because libbsc has started depending on osmo-bsc/*.c implementations: on gscon FSM and bssap functions. For example, neither bs11_config nor ipaccess-config nor bts_test need handover_cfg or BSSMAP message composition. It makes no sense to link the entire osmo-bsc to it, nor do we want to keep adding stubs to each linking realm. Change-Id: I36a586726f5818121abe54d25654819fc451d3bf
2018-05-26 23:26:31 +00:00
"on ARFCN %u using MCC-MNC %s LAC=%u CID=%u BSIC=%u\n",
trx->arfcn, osmo_plmn_name(&bsc_gsmnet->plmn),
dissolve libbsc: move all to src/osmo-bsc, link .o files Move all of libbsc/ into osmo-bsc/, and separate/move some implementations to allow linking from utils/* and ipaccess/* without pulling in unccessary dependencies. Some utilities use gsm_network and gsm_bts structs, which already include data structures for fairly advanced uses. Move initialization that only osmo-bsc needs into new bsc_network_init() and bsc_bts_alloc_register() functions, so that the leaner tools can use the old gsm_* versions without the need to link everything (e.g. handover and lchan alloc code). In some instances, there need to be stubs if to cut off linking "just before the RSL level" and prevent dependencies from creeping in. - abis_rsl_rcvmsg(): the only program currently interpreting RSL messages is osmo-bsc, the utils are merely concerned with OML, if at all. - paging_flush_bts(): ip.access nanobts models call this when the RSL link is dropped. Only osmo-bsc actually needs to do anything there. - on_gsm_ts_init(): the mechanism to trigger timeslot initialization is related to OML, while this action to take on init would pull in RSL dependencies. utils/ and ipaccess/ each have a stubs.c file to implement these stubs. Tests implement stubs inline where required. From src/utils/, src/ipaccess/ and tests/*/, link in .o files from osmo-bsc/. In order for this to work, the osmo-bsc subdir must be built before the other source trees. (An alternative would be to include the .c files as sources, but that would re-compile them in every source tree. Not a large burden really, but unless linking .o files gives problems, let's have the quicker build.) Minor obvious cleanups creep in with this patch, I will not bother to name them individually now unless code review asks me to. Rationale: 1) libbsc has been separate to use it for osmo-nitb and osmo-bsc in the old openbsc.git. This is no longer required, and spreading over libbsc and osmo-bsc is distracting. 2) Recently, ridiculous linking requirements have made adding new functions cumbersome, because libbsc has started depending on osmo-bsc/*.c implementations: on gscon FSM and bssap functions. For example, neither bs11_config nor ipaccess-config nor bts_test need handover_cfg or BSSMAP message composition. It makes no sense to link the entire osmo-bsc to it, nor do we want to keep adding stubs to each linking realm. Change-Id: I36a586726f5818121abe54d25654819fc451d3bf
2018-05-26 23:26:31 +00:00
trx->bts->location_area_code,
trx->bts->cell_identity, trx->bts->bsic);
if (trx->bts->type == GSM_BTS_TYPE_NOKIA_SITE) {
rsl_nokia_si_begin(trx);
}
/*
* Trigger ACC ramping before sending system information to BTS.
* This ensures that RACH control in system information is configured correctly.
* TRX 0 should be usable and unlocked, otherwise starting ACC ramping is pointless.
*/
if (trx_is_usable(trx))
dissolve libbsc: move all to src/osmo-bsc, link .o files Move all of libbsc/ into osmo-bsc/, and separate/move some implementations to allow linking from utils/* and ipaccess/* without pulling in unccessary dependencies. Some utilities use gsm_network and gsm_bts structs, which already include data structures for fairly advanced uses. Move initialization that only osmo-bsc needs into new bsc_network_init() and bsc_bts_alloc_register() functions, so that the leaner tools can use the old gsm_* versions without the need to link everything (e.g. handover and lchan alloc code). In some instances, there need to be stubs if to cut off linking "just before the RSL level" and prevent dependencies from creeping in. - abis_rsl_rcvmsg(): the only program currently interpreting RSL messages is osmo-bsc, the utils are merely concerned with OML, if at all. - paging_flush_bts(): ip.access nanobts models call this when the RSL link is dropped. Only osmo-bsc actually needs to do anything there. - on_gsm_ts_init(): the mechanism to trigger timeslot initialization is related to OML, while this action to take on init would pull in RSL dependencies. utils/ and ipaccess/ each have a stubs.c file to implement these stubs. Tests implement stubs inline where required. From src/utils/, src/ipaccess/ and tests/*/, link in .o files from osmo-bsc/. In order for this to work, the osmo-bsc subdir must be built before the other source trees. (An alternative would be to include the .c files as sources, but that would re-compile them in every source tree. Not a large burden really, but unless linking .o files gives problems, let's have the quicker build.) Minor obvious cleanups creep in with this patch, I will not bother to name them individually now unless code review asks me to. Rationale: 1) libbsc has been separate to use it for osmo-nitb and osmo-bsc in the old openbsc.git. This is no longer required, and spreading over libbsc and osmo-bsc is distracting. 2) Recently, ridiculous linking requirements have made adding new functions cumbersome, because libbsc has started depending on osmo-bsc/*.c implementations: on gscon FSM and bssap functions. For example, neither bs11_config nor ipaccess-config nor bts_test need handover_cfg or BSSMAP message composition. It makes no sense to link the entire osmo-bsc to it, nor do we want to keep adding stubs to each linking realm. Change-Id: I36a586726f5818121abe54d25654819fc451d3bf
2018-05-26 23:26:31 +00:00
acc_ramp_trigger(&trx->bts->acc_ramp);
gsm_bts_trx_set_system_infos(trx);
if (trx->bts->type == GSM_BTS_TYPE_NOKIA_SITE) {
/* channel unspecific, power reduction in 2 dB steps */
rsl_bs_power_control(trx, 0xFF, trx->max_power_red / 2);
rsl_nokia_si_end(trx);
}
for (i = 0; i < ARRAY_SIZE(trx->ts); i++) {
struct gsm_bts_trx_ts *ts = &trx->ts[i];
generate_ma_for_ts(ts);
large refactoring: use FSMs for lchans; add inter-BSC HO Add FSMs: - timeslot_fsm: handle dynamic timeslots and OML+RSL availability. - lchan_fsm: handle an individual lchan activation, RTP stream and release, signal the appropriate calling FSMs on success, failure, release. - mgw_endpoint_fsm: handle one entire endpoint with several CI. - assignment_fsm: BSSMAP Assignment Request. - handover_fsm: all of intra, inter-MO and inter-MT handover. Above FSMs absorb large parts of the gscon FSM. The gscon FSM was surpassing the maximum amount events (32), and it is more logical to treat assignment, handover and MGW procedures in separate FSMs. - Add logging macros for each FSM type: - LOG_TS() - LOG_LCHAN() - LOG_MGWEP(), LOG_CI() - LOG_ASSIGNMENT() - LOG_HO() These log with the osmo_fsm_inst where present. New style decision: logging without a final newline char is awkward, especially for gsmtap logging and when other logs interleave LOGPC() calls; we have various cases where the final \n goes missing, and also this invokes the log category checking N times instead of once. So I decided to make these macros *always* append a newline, but only if there is no final newline yet. I hope that the compiler optimizes the strlen() of the constant format strings away. Thus I can log with or without typing "\n" and always get an \n termination anyway. General: - replace osmo_timers, state enums and program-wide osmo_signal_dispatch() with dedicated FSM timeouts, states and events. - introduce a common way to handle Tnnn timers: gsm_timers.h/.c: struct T_def. These can be used (with some macro magic) to define a state's timeout once, and not make mistakes for each osmo_fsm_inst_state_chg(). Details: bsc_subscr_conn_fsm.c: - move most states of this FSM to lchan_fsm, assignment_fsm, handover_fsm and mgw_endpoint_fsm. - There is exactly one state for an ongoing Assignment, with all details handled in conn->assignment.fi. The state relies on the assignment_fsm's timeout. - There is one state for an ongoing Handover; except for an incoming Handover from a remote BSS, the gscon remains in ST_INIT until the new lchan and conn are both established. - move bssmap_add_lcls_status() to osmo_bsc_lcls.c abis_rsl.c: - move all dynamic timeslot logic away into timeslot_fsm. Only keep plain send/receive functions in abis_rsl.c - reduce some rsl functions to merely send a message, rename to "_tx_". - rsl_ipacc_mdcx(): add '_tx_' in the name; move parts that change the lchan state out into the lchan_fsm, the lchan->abis_ip.* are now set there prior to invoking this function. - move all timers and error/release handling away into various FSMs. - tweak ipa_smod_s_for_lchan() and ipa_rtp_pt_for_lchan() to not require an lchan passed, but just mode,type that they require. Rename to ipacc_speech_mode*() and ipacc_payload_type(). - add rsl_forward_layer3_info, used for inter-BSC HO MO, to just send the RR message received during BSSMAP Handover Command. - move various logging to LOG_LCHAN() in order to log with the lchan FSM instance. One drawback is that the lchan FSM is limited to one logging category, i.e. this moves some logging from DRR to DRSL. It might actually make sense to combine those categories. - lose LOGP...LOGPC logging cascades: they are bad for gsmtap logging and for performance. - handle_classmark_chg(): change logging, move cm2 len check out of the cm3 condition (I hope that's correct). - gsm48_send_ho_cmd(): split off gsm48_make_ho_cmd() which doesn't send right away, so that during inter-bsc HO we can make an RR Handover Command to send via the MSC to the remote BSS. assignment_fsm.c: - the Chan Mode Modify in case of re-using the same lchan is not implemented yet, because this was also missing in the previous implementation (OS#3357). osmo_bsc_api.c: - simplify bsc_mr_config() and move to lchan_fsm.c, the only caller; rename to lchan_mr_config(). (bsc_mr_config() used to copy the values to mr_bts_lv twice, once by member assignment and then again with a memcpy.) - During handover, we used to copy the MR config from the old lchan. Since we may handover between FR and HR, rather set the MR Config anew every time, so that FR rates are always available on FR lchans, and never on HR lchans. Depends: I03ee7ce840ecfa0b6a33358e7385528aabd4873f (libosmocore), I1f2918418c38918c5ac70acaa51a47adfca12b5e (libosmocore) Change-Id: I82e3f918295daa83274a4cf803f046979f284366
2018-05-14 16:14:15 +00:00
OSMO_ASSERT(ts->fi);
osmo_fsm_inst_dispatch(ts->fi, TS_EV_RSL_READY, NULL);
dissolve libbsc: move all to src/osmo-bsc, link .o files Move all of libbsc/ into osmo-bsc/, and separate/move some implementations to allow linking from utils/* and ipaccess/* without pulling in unccessary dependencies. Some utilities use gsm_network and gsm_bts structs, which already include data structures for fairly advanced uses. Move initialization that only osmo-bsc needs into new bsc_network_init() and bsc_bts_alloc_register() functions, so that the leaner tools can use the old gsm_* versions without the need to link everything (e.g. handover and lchan alloc code). In some instances, there need to be stubs if to cut off linking "just before the RSL level" and prevent dependencies from creeping in. - abis_rsl_rcvmsg(): the only program currently interpreting RSL messages is osmo-bsc, the utils are merely concerned with OML, if at all. - paging_flush_bts(): ip.access nanobts models call this when the RSL link is dropped. Only osmo-bsc actually needs to do anything there. - on_gsm_ts_init(): the mechanism to trigger timeslot initialization is related to OML, while this action to take on init would pull in RSL dependencies. utils/ and ipaccess/ each have a stubs.c file to implement these stubs. Tests implement stubs inline where required. From src/utils/, src/ipaccess/ and tests/*/, link in .o files from osmo-bsc/. In order for this to work, the osmo-bsc subdir must be built before the other source trees. (An alternative would be to include the .c files as sources, but that would re-compile them in every source tree. Not a large burden really, but unless linking .o files gives problems, let's have the quicker build.) Minor obvious cleanups creep in with this patch, I will not bother to name them individually now unless code review asks me to. Rationale: 1) libbsc has been separate to use it for osmo-nitb and osmo-bsc in the old openbsc.git. This is no longer required, and spreading over libbsc and osmo-bsc is distracting. 2) Recently, ridiculous linking requirements have made adding new functions cumbersome, because libbsc has started depending on osmo-bsc/*.c implementations: on gscon FSM and bssap functions. For example, neither bs11_config nor ipaccess-config nor bts_test need handover_cfg or BSSMAP message composition. It makes no sense to link the entire osmo-bsc to it, nor do we want to keep adding stubs to each linking realm. Change-Id: I36a586726f5818121abe54d25654819fc451d3bf
2018-05-26 23:26:31 +00:00
}
/* Start CBCH transmit timer if CBCH is present */
if (trx->nr == 0 && gsm_bts_get_cbch(trx->bts))
bts_cbch_timer_schedule(trx->bts);
dissolve libbsc: move all to src/osmo-bsc, link .o files Move all of libbsc/ into osmo-bsc/, and separate/move some implementations to allow linking from utils/* and ipaccess/* without pulling in unccessary dependencies. Some utilities use gsm_network and gsm_bts structs, which already include data structures for fairly advanced uses. Move initialization that only osmo-bsc needs into new bsc_network_init() and bsc_bts_alloc_register() functions, so that the leaner tools can use the old gsm_* versions without the need to link everything (e.g. handover and lchan alloc code). In some instances, there need to be stubs if to cut off linking "just before the RSL level" and prevent dependencies from creeping in. - abis_rsl_rcvmsg(): the only program currently interpreting RSL messages is osmo-bsc, the utils are merely concerned with OML, if at all. - paging_flush_bts(): ip.access nanobts models call this when the RSL link is dropped. Only osmo-bsc actually needs to do anything there. - on_gsm_ts_init(): the mechanism to trigger timeslot initialization is related to OML, while this action to take on init would pull in RSL dependencies. utils/ and ipaccess/ each have a stubs.c file to implement these stubs. Tests implement stubs inline where required. From src/utils/, src/ipaccess/ and tests/*/, link in .o files from osmo-bsc/. In order for this to work, the osmo-bsc subdir must be built before the other source trees. (An alternative would be to include the .c files as sources, but that would re-compile them in every source tree. Not a large burden really, but unless linking .o files gives problems, let's have the quicker build.) Minor obvious cleanups creep in with this patch, I will not bother to name them individually now unless code review asks me to. Rationale: 1) libbsc has been separate to use it for osmo-nitb and osmo-bsc in the old openbsc.git. This is no longer required, and spreading over libbsc and osmo-bsc is distracting. 2) Recently, ridiculous linking requirements have made adding new functions cumbersome, because libbsc has started depending on osmo-bsc/*.c implementations: on gscon FSM and bssap functions. For example, neither bs11_config nor ipaccess-config nor bts_test need handover_cfg or BSSMAP message composition. It makes no sense to link the entire osmo-bsc to it, nor do we want to keep adding stubs to each linking realm. Change-Id: I36a586726f5818121abe54d25654819fc451d3bf
2018-05-26 23:26:31 +00:00
}
static void all_ts_dispatch_event(struct gsm_bts_trx *trx, uint32_t event)
{
int ts_i;
for (ts_i = 0; ts_i < ARRAY_SIZE(trx->ts); ts_i++) {
struct gsm_bts_trx_ts *ts = &trx->ts[ts_i];
if (ts->fi)
osmo_fsm_inst_dispatch(ts->fi, event, 0);
}
}
dissolve libbsc: move all to src/osmo-bsc, link .o files Move all of libbsc/ into osmo-bsc/, and separate/move some implementations to allow linking from utils/* and ipaccess/* without pulling in unccessary dependencies. Some utilities use gsm_network and gsm_bts structs, which already include data structures for fairly advanced uses. Move initialization that only osmo-bsc needs into new bsc_network_init() and bsc_bts_alloc_register() functions, so that the leaner tools can use the old gsm_* versions without the need to link everything (e.g. handover and lchan alloc code). In some instances, there need to be stubs if to cut off linking "just before the RSL level" and prevent dependencies from creeping in. - abis_rsl_rcvmsg(): the only program currently interpreting RSL messages is osmo-bsc, the utils are merely concerned with OML, if at all. - paging_flush_bts(): ip.access nanobts models call this when the RSL link is dropped. Only osmo-bsc actually needs to do anything there. - on_gsm_ts_init(): the mechanism to trigger timeslot initialization is related to OML, while this action to take on init would pull in RSL dependencies. utils/ and ipaccess/ each have a stubs.c file to implement these stubs. Tests implement stubs inline where required. From src/utils/, src/ipaccess/ and tests/*/, link in .o files from osmo-bsc/. In order for this to work, the osmo-bsc subdir must be built before the other source trees. (An alternative would be to include the .c files as sources, but that would re-compile them in every source tree. Not a large burden really, but unless linking .o files gives problems, let's have the quicker build.) Minor obvious cleanups creep in with this patch, I will not bother to name them individually now unless code review asks me to. Rationale: 1) libbsc has been separate to use it for osmo-nitb and osmo-bsc in the old openbsc.git. This is no longer required, and spreading over libbsc and osmo-bsc is distracting. 2) Recently, ridiculous linking requirements have made adding new functions cumbersome, because libbsc has started depending on osmo-bsc/*.c implementations: on gscon FSM and bssap functions. For example, neither bs11_config nor ipaccess-config nor bts_test need handover_cfg or BSSMAP message composition. It makes no sense to link the entire osmo-bsc to it, nor do we want to keep adding stubs to each linking realm. Change-Id: I36a586726f5818121abe54d25654819fc451d3bf
2018-05-26 23:26:31 +00:00
/* Callback function to be called every time we receive a signal from INPUT */
static int inp_sig_cb(unsigned int subsys, unsigned int signal,
void *handler_data, void *signal_data)
{
struct input_signal_data *isd = signal_data;
struct gsm_bts_trx *trx = isd->trx;
/* N. B: we rely on attribute order when parsing response in abis_nm_rx_get_attr_resp() */
const uint8_t bts_attr[] = { NM_ATT_MANUF_ID, NM_ATT_SW_CONFIG, };
const uint8_t trx_attr[] = { NM_ATT_MANUF_STATE, NM_ATT_SW_CONFIG, };
/* we should not request more attributes than we're ready to handle */
OSMO_ASSERT(sizeof(bts_attr) < MAX_BTS_ATTR);
OSMO_ASSERT(sizeof(trx_attr) < MAX_BTS_ATTR);
if (subsys != SS_L_INPUT)
return -EINVAL;
LOGP(DLMI, LOGL_DEBUG, "%s(): Input signal '%s' received\n", __func__,
get_value_string(e1inp_signal_names, signal));
switch (signal) {
case S_L_INP_TEI_UP:
if (isd->link_type == E1INP_SIGN_OML) {
/* TODO: this is required for the Nokia BTS, hopping is configured
during OML, other MA is not set. */
struct gsm_bts_trx *cur_trx;
uint8_t ca[20];
/* has to be called before generate_ma_for_ts to
set bts->si_common.cell_alloc */
generate_cell_chan_list(ca, trx->bts);
/* Request generic BTS-level attributes */
abis_nm_get_attr(trx->bts, NM_OC_BTS, 0xFF, 0xFF, 0xFF, bts_attr, sizeof(bts_attr));
llist_for_each_entry(cur_trx, &trx->bts->trx_list, list) {
int i;
/* Request TRX-level attributes */
abis_nm_get_attr(cur_trx->bts, NM_OC_BASEB_TRANSC, 0, cur_trx->nr, 0xFF,
trx_attr, sizeof(trx_attr));
for (i = 0; i < ARRAY_SIZE(cur_trx->ts); i++)
generate_ma_for_ts(&cur_trx->ts[i]);
}
}
if (isd->link_type == E1INP_SIGN_RSL)
bootstrap_rsl(trx);
break;
case S_L_INP_TEI_DN:
LOG_TRX(trx, DLMI, LOGL_ERROR, "Lost E1 %s link\n", e1inp_signtype_name(isd->link_type));
dissolve libbsc: move all to src/osmo-bsc, link .o files Move all of libbsc/ into osmo-bsc/, and separate/move some implementations to allow linking from utils/* and ipaccess/* without pulling in unccessary dependencies. Some utilities use gsm_network and gsm_bts structs, which already include data structures for fairly advanced uses. Move initialization that only osmo-bsc needs into new bsc_network_init() and bsc_bts_alloc_register() functions, so that the leaner tools can use the old gsm_* versions without the need to link everything (e.g. handover and lchan alloc code). In some instances, there need to be stubs if to cut off linking "just before the RSL level" and prevent dependencies from creeping in. - abis_rsl_rcvmsg(): the only program currently interpreting RSL messages is osmo-bsc, the utils are merely concerned with OML, if at all. - paging_flush_bts(): ip.access nanobts models call this when the RSL link is dropped. Only osmo-bsc actually needs to do anything there. - on_gsm_ts_init(): the mechanism to trigger timeslot initialization is related to OML, while this action to take on init would pull in RSL dependencies. utils/ and ipaccess/ each have a stubs.c file to implement these stubs. Tests implement stubs inline where required. From src/utils/, src/ipaccess/ and tests/*/, link in .o files from osmo-bsc/. In order for this to work, the osmo-bsc subdir must be built before the other source trees. (An alternative would be to include the .c files as sources, but that would re-compile them in every source tree. Not a large burden really, but unless linking .o files gives problems, let's have the quicker build.) Minor obvious cleanups creep in with this patch, I will not bother to name them individually now unless code review asks me to. Rationale: 1) libbsc has been separate to use it for osmo-nitb and osmo-bsc in the old openbsc.git. This is no longer required, and spreading over libbsc and osmo-bsc is distracting. 2) Recently, ridiculous linking requirements have made adding new functions cumbersome, because libbsc has started depending on osmo-bsc/*.c implementations: on gscon FSM and bssap functions. For example, neither bs11_config nor ipaccess-config nor bts_test need handover_cfg or BSSMAP message composition. It makes no sense to link the entire osmo-bsc to it, nor do we want to keep adding stubs to each linking realm. Change-Id: I36a586726f5818121abe54d25654819fc451d3bf
2018-05-26 23:26:31 +00:00
if (isd->link_type == E1INP_SIGN_OML) {
dissolve libbsc: move all to src/osmo-bsc, link .o files Move all of libbsc/ into osmo-bsc/, and separate/move some implementations to allow linking from utils/* and ipaccess/* without pulling in unccessary dependencies. Some utilities use gsm_network and gsm_bts structs, which already include data structures for fairly advanced uses. Move initialization that only osmo-bsc needs into new bsc_network_init() and bsc_bts_alloc_register() functions, so that the leaner tools can use the old gsm_* versions without the need to link everything (e.g. handover and lchan alloc code). In some instances, there need to be stubs if to cut off linking "just before the RSL level" and prevent dependencies from creeping in. - abis_rsl_rcvmsg(): the only program currently interpreting RSL messages is osmo-bsc, the utils are merely concerned with OML, if at all. - paging_flush_bts(): ip.access nanobts models call this when the RSL link is dropped. Only osmo-bsc actually needs to do anything there. - on_gsm_ts_init(): the mechanism to trigger timeslot initialization is related to OML, while this action to take on init would pull in RSL dependencies. utils/ and ipaccess/ each have a stubs.c file to implement these stubs. Tests implement stubs inline where required. From src/utils/, src/ipaccess/ and tests/*/, link in .o files from osmo-bsc/. In order for this to work, the osmo-bsc subdir must be built before the other source trees. (An alternative would be to include the .c files as sources, but that would re-compile them in every source tree. Not a large burden really, but unless linking .o files gives problems, let's have the quicker build.) Minor obvious cleanups creep in with this patch, I will not bother to name them individually now unless code review asks me to. Rationale: 1) libbsc has been separate to use it for osmo-nitb and osmo-bsc in the old openbsc.git. This is no longer required, and spreading over libbsc and osmo-bsc is distracting. 2) Recently, ridiculous linking requirements have made adding new functions cumbersome, because libbsc has started depending on osmo-bsc/*.c implementations: on gscon FSM and bssap functions. For example, neither bs11_config nor ipaccess-config nor bts_test need handover_cfg or BSSMAP message composition. It makes no sense to link the entire osmo-bsc to it, nor do we want to keep adding stubs to each linking realm. Change-Id: I36a586726f5818121abe54d25654819fc451d3bf
2018-05-26 23:26:31 +00:00
rate_ctr_inc(&trx->bts->bts_ctrs->ctr[BTS_CTR_BTS_OML_FAIL]);
all_ts_dispatch_event(trx, TS_EV_OML_DOWN);
} else if (isd->link_type == E1INP_SIGN_RSL) {
dissolve libbsc: move all to src/osmo-bsc, link .o files Move all of libbsc/ into osmo-bsc/, and separate/move some implementations to allow linking from utils/* and ipaccess/* without pulling in unccessary dependencies. Some utilities use gsm_network and gsm_bts structs, which already include data structures for fairly advanced uses. Move initialization that only osmo-bsc needs into new bsc_network_init() and bsc_bts_alloc_register() functions, so that the leaner tools can use the old gsm_* versions without the need to link everything (e.g. handover and lchan alloc code). In some instances, there need to be stubs if to cut off linking "just before the RSL level" and prevent dependencies from creeping in. - abis_rsl_rcvmsg(): the only program currently interpreting RSL messages is osmo-bsc, the utils are merely concerned with OML, if at all. - paging_flush_bts(): ip.access nanobts models call this when the RSL link is dropped. Only osmo-bsc actually needs to do anything there. - on_gsm_ts_init(): the mechanism to trigger timeslot initialization is related to OML, while this action to take on init would pull in RSL dependencies. utils/ and ipaccess/ each have a stubs.c file to implement these stubs. Tests implement stubs inline where required. From src/utils/, src/ipaccess/ and tests/*/, link in .o files from osmo-bsc/. In order for this to work, the osmo-bsc subdir must be built before the other source trees. (An alternative would be to include the .c files as sources, but that would re-compile them in every source tree. Not a large burden really, but unless linking .o files gives problems, let's have the quicker build.) Minor obvious cleanups creep in with this patch, I will not bother to name them individually now unless code review asks me to. Rationale: 1) libbsc has been separate to use it for osmo-nitb and osmo-bsc in the old openbsc.git. This is no longer required, and spreading over libbsc and osmo-bsc is distracting. 2) Recently, ridiculous linking requirements have made adding new functions cumbersome, because libbsc has started depending on osmo-bsc/*.c implementations: on gscon FSM and bssap functions. For example, neither bs11_config nor ipaccess-config nor bts_test need handover_cfg or BSSMAP message composition. It makes no sense to link the entire osmo-bsc to it, nor do we want to keep adding stubs to each linking realm. Change-Id: I36a586726f5818121abe54d25654819fc451d3bf
2018-05-26 23:26:31 +00:00
rate_ctr_inc(&trx->bts->bts_ctrs->ctr[BTS_CTR_BTS_RSL_FAIL]);
acc_ramp_abort(&trx->bts->acc_ramp);
all_ts_dispatch_event(trx, TS_EV_RSL_DOWN);
if (trx->nr == 0)
osmo_timer_del(&trx->bts->cbch_timer);
dissolve libbsc: move all to src/osmo-bsc, link .o files Move all of libbsc/ into osmo-bsc/, and separate/move some implementations to allow linking from utils/* and ipaccess/* without pulling in unccessary dependencies. Some utilities use gsm_network and gsm_bts structs, which already include data structures for fairly advanced uses. Move initialization that only osmo-bsc needs into new bsc_network_init() and bsc_bts_alloc_register() functions, so that the leaner tools can use the old gsm_* versions without the need to link everything (e.g. handover and lchan alloc code). In some instances, there need to be stubs if to cut off linking "just before the RSL level" and prevent dependencies from creeping in. - abis_rsl_rcvmsg(): the only program currently interpreting RSL messages is osmo-bsc, the utils are merely concerned with OML, if at all. - paging_flush_bts(): ip.access nanobts models call this when the RSL link is dropped. Only osmo-bsc actually needs to do anything there. - on_gsm_ts_init(): the mechanism to trigger timeslot initialization is related to OML, while this action to take on init would pull in RSL dependencies. utils/ and ipaccess/ each have a stubs.c file to implement these stubs. Tests implement stubs inline where required. From src/utils/, src/ipaccess/ and tests/*/, link in .o files from osmo-bsc/. In order for this to work, the osmo-bsc subdir must be built before the other source trees. (An alternative would be to include the .c files as sources, but that would re-compile them in every source tree. Not a large burden really, but unless linking .o files gives problems, let's have the quicker build.) Minor obvious cleanups creep in with this patch, I will not bother to name them individually now unless code review asks me to. Rationale: 1) libbsc has been separate to use it for osmo-nitb and osmo-bsc in the old openbsc.git. This is no longer required, and spreading over libbsc and osmo-bsc is distracting. 2) Recently, ridiculous linking requirements have made adding new functions cumbersome, because libbsc has started depending on osmo-bsc/*.c implementations: on gscon FSM and bssap functions. For example, neither bs11_config nor ipaccess-config nor bts_test need handover_cfg or BSSMAP message composition. It makes no sense to link the entire osmo-bsc to it, nor do we want to keep adding stubs to each linking realm. Change-Id: I36a586726f5818121abe54d25654819fc451d3bf
2018-05-26 23:26:31 +00:00
}
gsm_bts_mo_reset(trx->bts);
abis_nm_clear_queue(trx->bts);
break;
default:
break;
}
return 0;
}
static int bootstrap_bts(struct gsm_bts *bts)
{
struct gsm_bts_trx *trx;
unsigned int n = 0;
dissolve libbsc: move all to src/osmo-bsc, link .o files Move all of libbsc/ into osmo-bsc/, and separate/move some implementations to allow linking from utils/* and ipaccess/* without pulling in unccessary dependencies. Some utilities use gsm_network and gsm_bts structs, which already include data structures for fairly advanced uses. Move initialization that only osmo-bsc needs into new bsc_network_init() and bsc_bts_alloc_register() functions, so that the leaner tools can use the old gsm_* versions without the need to link everything (e.g. handover and lchan alloc code). In some instances, there need to be stubs if to cut off linking "just before the RSL level" and prevent dependencies from creeping in. - abis_rsl_rcvmsg(): the only program currently interpreting RSL messages is osmo-bsc, the utils are merely concerned with OML, if at all. - paging_flush_bts(): ip.access nanobts models call this when the RSL link is dropped. Only osmo-bsc actually needs to do anything there. - on_gsm_ts_init(): the mechanism to trigger timeslot initialization is related to OML, while this action to take on init would pull in RSL dependencies. utils/ and ipaccess/ each have a stubs.c file to implement these stubs. Tests implement stubs inline where required. From src/utils/, src/ipaccess/ and tests/*/, link in .o files from osmo-bsc/. In order for this to work, the osmo-bsc subdir must be built before the other source trees. (An alternative would be to include the .c files as sources, but that would re-compile them in every source tree. Not a large burden really, but unless linking .o files gives problems, let's have the quicker build.) Minor obvious cleanups creep in with this patch, I will not bother to name them individually now unless code review asks me to. Rationale: 1) libbsc has been separate to use it for osmo-nitb and osmo-bsc in the old openbsc.git. This is no longer required, and spreading over libbsc and osmo-bsc is distracting. 2) Recently, ridiculous linking requirements have made adding new functions cumbersome, because libbsc has started depending on osmo-bsc/*.c implementations: on gscon FSM and bssap functions. For example, neither bs11_config nor ipaccess-config nor bts_test need handover_cfg or BSSMAP message composition. It makes no sense to link the entire osmo-bsc to it, nor do we want to keep adding stubs to each linking realm. Change-Id: I36a586726f5818121abe54d25654819fc451d3bf
2018-05-26 23:26:31 +00:00
if (!bts->model)
return -EFAULT;
if (bts->model->start && !bts->model->started) {
int ret = bts->model->start(bts->network);
if (ret < 0)
return ret;
bts->model->started = true;
}
/* FIXME: What about secondary TRX of a BTS? What about a BTS that has TRX
* in different bands? Why is 'band' a parameter of the BTS and not of the TRX? */
switch (bts->band) {
case GSM_BAND_1800:
if (bts->c0->arfcn < 512 || bts->c0->arfcn > 885) {
LOGP(DNM, LOGL_ERROR, "GSM1800 channel must be between 512-885.\n");
return -EINVAL;
}
break;
case GSM_BAND_1900:
if (bts->c0->arfcn < 512 || bts->c0->arfcn > 810) {
LOGP(DNM, LOGL_ERROR, "GSM1900 channel must be between 512-810.\n");
return -EINVAL;
}
break;
case GSM_BAND_900:
if ((bts->c0->arfcn > 124 && bts->c0->arfcn < 955) ||
bts->c0->arfcn > 1023) {
LOGP(DNM, LOGL_ERROR, "GSM900 channel must be between 0-124, 955-1023.\n");
return -EINVAL;
}
break;
case GSM_BAND_850:
if (bts->c0->arfcn < 128 || bts->c0->arfcn > 251) {
LOGP(DNM, LOGL_ERROR, "GSM850 channel must be between 128-251.\n");
return -EINVAL;
}
break;
default:
LOGP(DNM, LOGL_ERROR, "Unsupported frequency band.\n");
return -EINVAL;
}
/* Verify the physical channel mapping */
llist_for_each_entry(trx, &bts->trx_list, list) {
if (!trx_has_valid_pchan_config(trx)) {
LOGP(DNM, LOGL_ERROR, "TRX %u has invalid timeslot "
"configuration\n", trx->nr);
return -EINVAL;
}
}
dissolve libbsc: move all to src/osmo-bsc, link .o files Move all of libbsc/ into osmo-bsc/, and separate/move some implementations to allow linking from utils/* and ipaccess/* without pulling in unccessary dependencies. Some utilities use gsm_network and gsm_bts structs, which already include data structures for fairly advanced uses. Move initialization that only osmo-bsc needs into new bsc_network_init() and bsc_bts_alloc_register() functions, so that the leaner tools can use the old gsm_* versions without the need to link everything (e.g. handover and lchan alloc code). In some instances, there need to be stubs if to cut off linking "just before the RSL level" and prevent dependencies from creeping in. - abis_rsl_rcvmsg(): the only program currently interpreting RSL messages is osmo-bsc, the utils are merely concerned with OML, if at all. - paging_flush_bts(): ip.access nanobts models call this when the RSL link is dropped. Only osmo-bsc actually needs to do anything there. - on_gsm_ts_init(): the mechanism to trigger timeslot initialization is related to OML, while this action to take on init would pull in RSL dependencies. utils/ and ipaccess/ each have a stubs.c file to implement these stubs. Tests implement stubs inline where required. From src/utils/, src/ipaccess/ and tests/*/, link in .o files from osmo-bsc/. In order for this to work, the osmo-bsc subdir must be built before the other source trees. (An alternative would be to include the .c files as sources, but that would re-compile them in every source tree. Not a large burden really, but unless linking .o files gives problems, let's have the quicker build.) Minor obvious cleanups creep in with this patch, I will not bother to name them individually now unless code review asks me to. Rationale: 1) libbsc has been separate to use it for osmo-nitb and osmo-bsc in the old openbsc.git. This is no longer required, and spreading over libbsc and osmo-bsc is distracting. 2) Recently, ridiculous linking requirements have made adding new functions cumbersome, because libbsc has started depending on osmo-bsc/*.c implementations: on gscon FSM and bssap functions. For example, neither bs11_config nor ipaccess-config nor bts_test need handover_cfg or BSSMAP message composition. It makes no sense to link the entire osmo-bsc to it, nor do we want to keep adding stubs to each linking realm. Change-Id: I36a586726f5818121abe54d25654819fc451d3bf
2018-05-26 23:26:31 +00:00
/* Control Channel Description is set from vty/config */
/* Indicate R99 MSC in SI3 */
bts->si_common.chan_desc.mscr = 1;
/* Determine the value of CCCH_CONF. Is TS0/C0 combined? */
if (bts->c0->ts[0].pchan_from_config != GSM_PCHAN_CCCH) {
dissolve libbsc: move all to src/osmo-bsc, link .o files Move all of libbsc/ into osmo-bsc/, and separate/move some implementations to allow linking from utils/* and ipaccess/* without pulling in unccessary dependencies. Some utilities use gsm_network and gsm_bts structs, which already include data structures for fairly advanced uses. Move initialization that only osmo-bsc needs into new bsc_network_init() and bsc_bts_alloc_register() functions, so that the leaner tools can use the old gsm_* versions without the need to link everything (e.g. handover and lchan alloc code). In some instances, there need to be stubs if to cut off linking "just before the RSL level" and prevent dependencies from creeping in. - abis_rsl_rcvmsg(): the only program currently interpreting RSL messages is osmo-bsc, the utils are merely concerned with OML, if at all. - paging_flush_bts(): ip.access nanobts models call this when the RSL link is dropped. Only osmo-bsc actually needs to do anything there. - on_gsm_ts_init(): the mechanism to trigger timeslot initialization is related to OML, while this action to take on init would pull in RSL dependencies. utils/ and ipaccess/ each have a stubs.c file to implement these stubs. Tests implement stubs inline where required. From src/utils/, src/ipaccess/ and tests/*/, link in .o files from osmo-bsc/. In order for this to work, the osmo-bsc subdir must be built before the other source trees. (An alternative would be to include the .c files as sources, but that would re-compile them in every source tree. Not a large burden really, but unless linking .o files gives problems, let's have the quicker build.) Minor obvious cleanups creep in with this patch, I will not bother to name them individually now unless code review asks me to. Rationale: 1) libbsc has been separate to use it for osmo-nitb and osmo-bsc in the old openbsc.git. This is no longer required, and spreading over libbsc and osmo-bsc is distracting. 2) Recently, ridiculous linking requirements have made adding new functions cumbersome, because libbsc has started depending on osmo-bsc/*.c implementations: on gscon FSM and bssap functions. For example, neither bs11_config nor ipaccess-config nor bts_test need handover_cfg or BSSMAP message composition. It makes no sense to link the entire osmo-bsc to it, nor do we want to keep adding stubs to each linking realm. Change-Id: I36a586726f5818121abe54d25654819fc451d3bf
2018-05-26 23:26:31 +00:00
bts->si_common.chan_desc.ccch_conf = RSL_BCCH_CCCH_CONF_1_C;
dissolve libbsc: move all to src/osmo-bsc, link .o files Move all of libbsc/ into osmo-bsc/, and separate/move some implementations to allow linking from utils/* and ipaccess/* without pulling in unccessary dependencies. Some utilities use gsm_network and gsm_bts structs, which already include data structures for fairly advanced uses. Move initialization that only osmo-bsc needs into new bsc_network_init() and bsc_bts_alloc_register() functions, so that the leaner tools can use the old gsm_* versions without the need to link everything (e.g. handover and lchan alloc code). In some instances, there need to be stubs if to cut off linking "just before the RSL level" and prevent dependencies from creeping in. - abis_rsl_rcvmsg(): the only program currently interpreting RSL messages is osmo-bsc, the utils are merely concerned with OML, if at all. - paging_flush_bts(): ip.access nanobts models call this when the RSL link is dropped. Only osmo-bsc actually needs to do anything there. - on_gsm_ts_init(): the mechanism to trigger timeslot initialization is related to OML, while this action to take on init would pull in RSL dependencies. utils/ and ipaccess/ each have a stubs.c file to implement these stubs. Tests implement stubs inline where required. From src/utils/, src/ipaccess/ and tests/*/, link in .o files from osmo-bsc/. In order for this to work, the osmo-bsc subdir must be built before the other source trees. (An alternative would be to include the .c files as sources, but that would re-compile them in every source tree. Not a large burden really, but unless linking .o files gives problems, let's have the quicker build.) Minor obvious cleanups creep in with this patch, I will not bother to name them individually now unless code review asks me to. Rationale: 1) libbsc has been separate to use it for osmo-nitb and osmo-bsc in the old openbsc.git. This is no longer required, and spreading over libbsc and osmo-bsc is distracting. 2) Recently, ridiculous linking requirements have made adding new functions cumbersome, because libbsc has started depending on osmo-bsc/*.c implementations: on gscon FSM and bssap functions. For example, neither bs11_config nor ipaccess-config nor bts_test need handover_cfg or BSSMAP message composition. It makes no sense to link the entire osmo-bsc to it, nor do we want to keep adding stubs to each linking realm. Change-Id: I36a586726f5818121abe54d25654819fc451d3bf
2018-05-26 23:26:31 +00:00
/* Limit reserved block to 2 on combined channel according to
3GPP TS 44.018 Table 10.5.2.11.1 */
if (bts->si_common.chan_desc.bs_ag_blks_res > 2) {
LOGP(DNM, LOGL_NOTICE, "CCCH is combined with SDCCHs, "
"reducing BS-AG-BLKS-RES value %d -> 2\n",
bts->si_common.chan_desc.bs_ag_blks_res);
bts->si_common.chan_desc.bs_ag_blks_res = 2;
}
} else { /* Non-combined TS0/C0 configuration */
/* There can be additional CCCHs on even timeslot numbers */
n += (bts->c0->ts[2].pchan_from_config == GSM_PCHAN_CCCH);
n += (bts->c0->ts[4].pchan_from_config == GSM_PCHAN_CCCH);
n += (bts->c0->ts[6].pchan_from_config == GSM_PCHAN_CCCH);
bts->si_common.chan_desc.ccch_conf = (n << 1);
dissolve libbsc: move all to src/osmo-bsc, link .o files Move all of libbsc/ into osmo-bsc/, and separate/move some implementations to allow linking from utils/* and ipaccess/* without pulling in unccessary dependencies. Some utilities use gsm_network and gsm_bts structs, which already include data structures for fairly advanced uses. Move initialization that only osmo-bsc needs into new bsc_network_init() and bsc_bts_alloc_register() functions, so that the leaner tools can use the old gsm_* versions without the need to link everything (e.g. handover and lchan alloc code). In some instances, there need to be stubs if to cut off linking "just before the RSL level" and prevent dependencies from creeping in. - abis_rsl_rcvmsg(): the only program currently interpreting RSL messages is osmo-bsc, the utils are merely concerned with OML, if at all. - paging_flush_bts(): ip.access nanobts models call this when the RSL link is dropped. Only osmo-bsc actually needs to do anything there. - on_gsm_ts_init(): the mechanism to trigger timeslot initialization is related to OML, while this action to take on init would pull in RSL dependencies. utils/ and ipaccess/ each have a stubs.c file to implement these stubs. Tests implement stubs inline where required. From src/utils/, src/ipaccess/ and tests/*/, link in .o files from osmo-bsc/. In order for this to work, the osmo-bsc subdir must be built before the other source trees. (An alternative would be to include the .c files as sources, but that would re-compile them in every source tree. Not a large burden really, but unless linking .o files gives problems, let's have the quicker build.) Minor obvious cleanups creep in with this patch, I will not bother to name them individually now unless code review asks me to. Rationale: 1) libbsc has been separate to use it for osmo-nitb and osmo-bsc in the old openbsc.git. This is no longer required, and spreading over libbsc and osmo-bsc is distracting. 2) Recently, ridiculous linking requirements have made adding new functions cumbersome, because libbsc has started depending on osmo-bsc/*.c implementations: on gscon FSM and bssap functions. For example, neither bs11_config nor ipaccess-config nor bts_test need handover_cfg or BSSMAP message composition. It makes no sense to link the entire osmo-bsc to it, nor do we want to keep adding stubs to each linking realm. Change-Id: I36a586726f5818121abe54d25654819fc451d3bf
2018-05-26 23:26:31 +00:00
}
bts->si_common.cell_options.pwrc = 0; /* PWRC not set */
bts->si_common.cell_sel_par.acs = 0;
bts->si_common.ncc_permitted = 0xff;
bts->chan_load_samples_idx = 0;
/* ACC ramping is initialized from vty/config */
/* Initialize the BTS state */
gsm_bts_mo_reset(bts);
return 0;
}
static int bsc_network_configure(const char *config_file)
{
struct gsm_bts *bts;
int rc;
rc = vty_read_config_file(config_file, NULL);
if (rc < 0) {
LOGP(DNM, LOGL_FATAL, "Failed to parse the config file: '%s'\n", config_file);
return rc;
}
/* start telnet after reading config for vty_get_bind_addr() */
rc = telnet_init_dynif(tall_bsc_ctx, bsc_gsmnet, vty_get_bind_addr(),
OSMO_VTY_PORT_NITB_BSC);
if (rc < 0)
return rc;
osmo_signal_register_handler(SS_NM, nm_sig_cb, NULL);
osmo_signal_register_handler(SS_L_INPUT, inp_sig_cb, NULL);
llist_for_each_entry(bts, &bsc_gsmnet->bts_list, list) {
rc = bootstrap_bts(bts);
if (rc < 0) {
LOGP(DNM, LOGL_FATAL, "Error bootstrapping BTS\n");
return rc;
}
rc = e1_reconfig_bts(bts);
if (rc < 0) {
LOGP(DNM, LOGL_FATAL, "Error enabling E1 input driver\n");
return rc;
}
}
return 0;
}
static int bsc_vty_go_parent(struct vty *vty)
{
switch (vty->node) {
case GSMNET_NODE:
vty->node = CONFIG_NODE;
vty->index = NULL;
break;
case BTS_NODE:
vty->node = GSMNET_NODE;
{
/* set vty->index correctly ! */
struct gsm_bts *bts = vty->index;
vty->index = bts->network;
vty->index_sub = NULL;
}
break;
case TRX_NODE:
vty->node = BTS_NODE;
{
/* set vty->index correctly ! */
struct gsm_bts_trx *trx = vty->index;
vty->index = trx->bts;
vty->index_sub = &trx->bts->description;
}
break;
case TS_NODE:
vty->node = TRX_NODE;
{
/* set vty->index correctly ! */
struct gsm_bts_trx_ts *ts = vty->index;
vty->index = ts->trx;
vty->index_sub = &ts->trx->description;
}
break;
case OML_NODE:
case OM2K_NODE:
vty->node = ENABLE_NODE;
/* NOTE: this only works because it's not part of the config
* tree, where outer commands are searched via vty_go_parent()
* and only (!) executed when a matching one is found.
*/
talloc_free(vty->index);
vty->index = NULL;
break;
case OM2K_CON_GROUP_NODE:
vty->node = BTS_NODE;
{
struct con_group *cg = vty->index;
struct gsm_bts *bts = cg->bts;
vty->index = bts;
vty->index_sub = &bts->description;
}
break;
case BSC_NODE:
case MSC_NODE:
vty->node = CONFIG_NODE;
vty->index = NULL;
break;
default:
osmo_ss7_vty_go_parent(vty);
}
return vty->node;
}
static int bsc_vty_is_config_node(struct vty *vty, int node)
{
/* Check if libosmo-sccp declares the node in
* question as config node */
if (osmo_ss7_is_config_node(vty, node))
return 1;
switch (node) {
/* add items that are not config */
case OML_NODE:
case OM2K_NODE:
case CONFIG_NODE:
return 0;
default:
return 1;
}
}
static struct vty_app_info vty_info = {
.name = "OsmoBSC",
.copyright =
"Copyright (C) 2008-2018 Harald Welte, Holger Freyther\r\n"
"Contributions by Daniel Willmann, Jan Lübbe, Stefan Schmidt\r\n"
"Dieter Spaar, Andreas Eversberg, Sylvain Munaut, Neels Hofmeyr\r\n\r\n"
"License AGPLv3+: GNU AGPL version 3 or later <http://gnu.org/licenses/agpl-3.0.html>\r\n"
"This is free software: you are free to change and redistribute it.\r\n"
"There is NO WARRANTY, to the extent permitted by law.\r\n",
.version = PACKAGE_VERSION,
.go_parent_cb = bsc_vty_go_parent,
.is_config_node = bsc_vty_is_config_node,
};
extern int bsc_shutdown_net(struct gsm_network *net);
static void signal_handler(int signal)
{
fprintf(stdout, "signal %u received\n", signal);
switch (signal) {
case SIGINT:
case SIGTERM:
bsc_shutdown_net(bsc_gsmnet);
src: port openBSC over libosmo-abis This is a big patch that ports openBSC over libosmo-abis. Sorry, the changes that are included here are all dependent of libosmo-abis, splitting them into smaller pieces would leave the repository in some intermediate state, which is not desired. The main changes are: - The directory libabis/ has been removed as it now lives in libosmo-abis. - new configuration file format for nanoBTS and HSL femto, we need to define the virtual e1_line and attach it to the OML link. - all the existing BTS drivers (nanoBTS, hsl femto, Nokia site, BS11 and rbs2000) now use the new libosmo-abis framework. - use r232 input driver available in libosmo-abis for bs11_config. - use ipa_msg_recv instead of old ipaccess_read_msg function. - delete definition of gsm_e1_subslot and input_signal_data. These structures now lives in libosmo-abis. Most of this patch are deletions of libabis/ which has been moved to libosmo-abis. This patch also modifies openBSC to use all the new definitions available in libosmocore and libosmo-abis. In order to do that, we have replaced the following: - DINP, DMI, DMIB and DMUX by their respective DL* correspondences. - SS_GLOBAL by SS_L_GLOBAL - SS_INPUT by SS_L_INPUT - S_GLOBAL_SHUTDOWN by S_L_GLOBAL_SHUTDOWN - SS_INPUT by SS_L_INPUT - S_INP_* by S_L_INP_* sub-signals - E1INP_NODE by L_E1INP_NODE vty node This patch has been tested with: - one nanoBTS - the HSL femto with the examples available under libosmo-abis - BS11 with both dahdi and misdn drivers.
2011-08-17 20:44:07 +00:00
osmo_signal_dispatch(SS_L_GLOBAL, S_L_GLOBAL_SHUTDOWN, NULL);
sleep(3);
exit(0);
break;
case SIGABRT:
/* in case of abort, we want to obtain a talloc report
* and then return to the caller, who will abort the process */
case SIGUSR1:
talloc_report(tall_vty_ctx, stderr);
talloc_report_full(tall_bsc_ctx, stderr);
break;
default:
break;
}
}
static const struct log_info_cat osmo_bsc_categories[] = {
[DRLL] = {
.name = "DRLL",
.description = "A-bis Radio Link Layer (RLL)",
.color = "\033[1;31m",
.enabled = 1, .loglevel = LOGL_NOTICE,
},
[DMM] = {
.name = "DMM",
.description = "Layer3 Mobility Management (MM)",
.color = "\033[1;33m",
.enabled = 1, .loglevel = LOGL_NOTICE,
},
[DRR] = {
.name = "DRR",
.description = "Layer3 Radio Resource (RR)",
.color = "\033[1;34m",
.enabled = 1, .loglevel = LOGL_NOTICE,
},
[DRSL] = {
.name = "DRSL",
.description = "A-bis Radio Signalling Link (RSL)",
.color = "\033[1;35m",
.enabled = 1, .loglevel = LOGL_NOTICE,
},
[DCHAN] = {
.name = "DCHAN",
.description = "lchan FSM",
.color = "\033[1;32m",
.enabled = 1, .loglevel = LOGL_NOTICE,
},
[DTS] = {
.name = "DTS",
.description = "timeslot FSM",
.color = "\033[1;31m",
.enabled = 1, .loglevel = LOGL_NOTICE,
},
[DAS] = {
.name = "DAS",
.description = "assignment FSM",
.color = "\033[1;33m",
.enabled = 1, .loglevel = LOGL_NOTICE,
},
[DNM] = {
.name = "DNM",
.description = "A-bis Network Management / O&M (NM/OML)",
.color = "\033[1;36m",
.enabled = 1, .loglevel = LOGL_NOTICE,
},
[DPAG] = {
.name = "DPAG",
.description = "Paging Subsystem",
.color = "\033[1;38m",
.enabled = 1, .loglevel = LOGL_NOTICE,
},
[DMEAS] = {
.name = "DMEAS",
.description = "Radio Measurement Processing",
.enabled = 0, .loglevel = LOGL_NOTICE,
},
[DMSC] = {
.name = "DMSC",
.description = "Mobile Switching Center",
.enabled = 1, .loglevel = LOGL_NOTICE,
},
[DHO] = {
.name = "DHO",
.description = "Hand-Over Process",
.color = "\033[1;38m",
.enabled = 1, .loglevel = LOGL_NOTICE,
},
[DHODEC] = {
.name = "DHODEC",
.description = "Hand-Over Decision",
.color = "\033[1;38m",
.enabled = 1, .loglevel = LOGL_NOTICE,
},
[DREF] = {
.name = "DREF",
.description = "Reference Counting",
.enabled = 0, .loglevel = LOGL_NOTICE,
},
[DCTRL] = {
.name = "DCTRL",
.description = "Control interface",
.enabled = 1, .loglevel = LOGL_NOTICE,
},
[DFILTER] = {
.name = "DFILTER",
.description = "BSC/NAT IMSI based filtering",
.enabled = 1, .loglevel = LOGL_NOTICE,
},
[DPCU] = {
.name = "DPCU",
.description = "PCU Interface",
.enabled = 1, .loglevel = LOGL_NOTICE,
},
[DLCLS] = {
.name = "DLCLS",
.description = "Local Call, Local Switch",
.enabled = 1, .loglevel = LOGL_NOTICE,
},
[DCBS] = {
.name = "DCBS",
.description = "Cell Broadcast System",
.enabled = 1, .loglevel = LOGL_NOTICE,
}
};
static int filter_fn(const struct log_context *ctx, struct log_target *tar)
{
const struct bsc_subscr *bsub_ctx = ctx->ctx[LOG_CTX_BSC_SUBSCR];
const struct bsc_subscr *bsub_filter = tar->filter_data[LOG_FLT_BSC_SUBSCR];
if ((tar->filter_map & (1 << LOG_FLT_BSC_SUBSCR)) != 0
&& bsub_ctx && bsub_filter
&& strncmp(bsub_ctx->imsi, bsub_filter->imsi, sizeof(bsub_ctx->imsi)) == 0)
return 1;
return 0;
}
const struct log_info log_info = {
.filter_fn = filter_fn,
.cat = osmo_bsc_categories,
.num_cat = ARRAY_SIZE(osmo_bsc_categories),
};
extern void *tall_paging_ctx;
extern void *tall_fle_ctx;
extern void *tall_tqe_ctx;
extern void *tall_ctr_ctx;
int main(int argc, char **argv)
{
struct bsc_msc_data *msc;
int rc;
tall_bsc_ctx = talloc_named_const(NULL, 1, "osmo-bsc");
msgb_talloc_ctx_init(tall_bsc_ctx, 0);
osmo_signal_talloc_ctx_init(tall_bsc_ctx);
osmo_xua_msg_tall_ctx_init(tall_bsc_ctx);
vty_info.tall_ctx = tall_bsc_ctx;
tall_paging_ctx = talloc_named_const(tall_bsc_ctx, 0, "paging_request");
tall_fle_ctx = talloc_named_const(tall_bsc_ctx, 0, "bs11_file_list_entry");
tall_tqe_ctx = talloc_named_const(tall_bsc_ctx, 0, "subch_txq_entry");
tall_ctr_ctx = talloc_named_const(tall_bsc_ctx, 0, "counter");
osmo_init_logging2(tall_bsc_ctx, &log_info);
osmo_stats_init(tall_bsc_ctx);
rate_ctr_init(tall_bsc_ctx);
osmo_fsm_set_dealloc_ctx(OTC_SELECT);
/* Allocate global gsm_network struct */
rc = bsc_network_alloc();
if (rc) {
fprintf(stderr, "Allocation failed. exiting.\n");
exit(1);
}
bsc_gsmnet->mgw.conf = talloc_zero(bsc_gsmnet, struct mgcp_client_conf);
mgcp_client_conf_init(bsc_gsmnet->mgw.conf);
bts_init();
src: port openBSC over libosmo-abis This is a big patch that ports openBSC over libosmo-abis. Sorry, the changes that are included here are all dependent of libosmo-abis, splitting them into smaller pieces would leave the repository in some intermediate state, which is not desired. The main changes are: - The directory libabis/ has been removed as it now lives in libosmo-abis. - new configuration file format for nanoBTS and HSL femto, we need to define the virtual e1_line and attach it to the OML link. - all the existing BTS drivers (nanoBTS, hsl femto, Nokia site, BS11 and rbs2000) now use the new libosmo-abis framework. - use r232 input driver available in libosmo-abis for bs11_config. - use ipa_msg_recv instead of old ipaccess_read_msg function. - delete definition of gsm_e1_subslot and input_signal_data. These structures now lives in libosmo-abis. Most of this patch are deletions of libabis/ which has been moved to libosmo-abis. This patch also modifies openBSC to use all the new definitions available in libosmocore and libosmo-abis. In order to do that, we have replaced the following: - DINP, DMI, DMIB and DMUX by their respective DL* correspondences. - SS_GLOBAL by SS_L_GLOBAL - SS_INPUT by SS_L_INPUT - S_GLOBAL_SHUTDOWN by S_L_GLOBAL_SHUTDOWN - SS_INPUT by SS_L_INPUT - S_INP_* by S_L_INP_* sub-signals - E1INP_NODE by L_E1INP_NODE vty node This patch has been tested with: - one nanoBTS - the HSL femto with the examples available under libosmo-abis - BS11 with both dahdi and misdn drivers.
2011-08-17 20:44:07 +00:00
libosmo_abis_init(tall_bsc_ctx);
/* enable filters */
/* This needs to precede handle_options() */
vty_init(&vty_info);
bsc_vty_init(bsc_gsmnet);
ctrl_vty_init(tall_bsc_ctx);
osmo_cpu_sched_vty_init(tall_bsc_ctx);
logging_vty_add_deprecated_subsys(tall_bsc_ctx, "cc");
logging_vty_add_deprecated_subsys(tall_bsc_ctx, "mgcp");
logging_vty_add_deprecated_subsys(tall_bsc_ctx, "nat");
/* Initialize SS7 */
OSMO_ASSERT(osmo_ss7_init() == 0);
osmo_ss7_vty_init_asp(tall_bsc_ctx);
osmo_sccp_vty_init();
/* parse options */
handle_options(argc, argv);
/* seed the PRNG */
srand(time(NULL));
large refactoring: use FSMs for lchans; add inter-BSC HO Add FSMs: - timeslot_fsm: handle dynamic timeslots and OML+RSL availability. - lchan_fsm: handle an individual lchan activation, RTP stream and release, signal the appropriate calling FSMs on success, failure, release. - mgw_endpoint_fsm: handle one entire endpoint with several CI. - assignment_fsm: BSSMAP Assignment Request. - handover_fsm: all of intra, inter-MO and inter-MT handover. Above FSMs absorb large parts of the gscon FSM. The gscon FSM was surpassing the maximum amount events (32), and it is more logical to treat assignment, handover and MGW procedures in separate FSMs. - Add logging macros for each FSM type: - LOG_TS() - LOG_LCHAN() - LOG_MGWEP(), LOG_CI() - LOG_ASSIGNMENT() - LOG_HO() These log with the osmo_fsm_inst where present. New style decision: logging without a final newline char is awkward, especially for gsmtap logging and when other logs interleave LOGPC() calls; we have various cases where the final \n goes missing, and also this invokes the log category checking N times instead of once. So I decided to make these macros *always* append a newline, but only if there is no final newline yet. I hope that the compiler optimizes the strlen() of the constant format strings away. Thus I can log with or without typing "\n" and always get an \n termination anyway. General: - replace osmo_timers, state enums and program-wide osmo_signal_dispatch() with dedicated FSM timeouts, states and events. - introduce a common way to handle Tnnn timers: gsm_timers.h/.c: struct T_def. These can be used (with some macro magic) to define a state's timeout once, and not make mistakes for each osmo_fsm_inst_state_chg(). Details: bsc_subscr_conn_fsm.c: - move most states of this FSM to lchan_fsm, assignment_fsm, handover_fsm and mgw_endpoint_fsm. - There is exactly one state for an ongoing Assignment, with all details handled in conn->assignment.fi. The state relies on the assignment_fsm's timeout. - There is one state for an ongoing Handover; except for an incoming Handover from a remote BSS, the gscon remains in ST_INIT until the new lchan and conn are both established. - move bssmap_add_lcls_status() to osmo_bsc_lcls.c abis_rsl.c: - move all dynamic timeslot logic away into timeslot_fsm. Only keep plain send/receive functions in abis_rsl.c - reduce some rsl functions to merely send a message, rename to "_tx_". - rsl_ipacc_mdcx(): add '_tx_' in the name; move parts that change the lchan state out into the lchan_fsm, the lchan->abis_ip.* are now set there prior to invoking this function. - move all timers and error/release handling away into various FSMs. - tweak ipa_smod_s_for_lchan() and ipa_rtp_pt_for_lchan() to not require an lchan passed, but just mode,type that they require. Rename to ipacc_speech_mode*() and ipacc_payload_type(). - add rsl_forward_layer3_info, used for inter-BSC HO MO, to just send the RR message received during BSSMAP Handover Command. - move various logging to LOG_LCHAN() in order to log with the lchan FSM instance. One drawback is that the lchan FSM is limited to one logging category, i.e. this moves some logging from DRR to DRSL. It might actually make sense to combine those categories. - lose LOGP...LOGPC logging cascades: they are bad for gsmtap logging and for performance. - handle_classmark_chg(): change logging, move cm2 len check out of the cm3 condition (I hope that's correct). - gsm48_send_ho_cmd(): split off gsm48_make_ho_cmd() which doesn't send right away, so that during inter-bsc HO we can make an RR Handover Command to send via the MSC to the remote BSS. assignment_fsm.c: - the Chan Mode Modify in case of re-using the same lchan is not implemented yet, because this was also missing in the previous implementation (OS#3357). osmo_bsc_api.c: - simplify bsc_mr_config() and move to lchan_fsm.c, the only caller; rename to lchan_mr_config(). (bsc_mr_config() used to copy the values to mr_bts_lv twice, once by member assignment and then again with a memcpy.) - During handover, we used to copy the MR config from the old lchan. Since we may handover between FR and HR, rather set the MR Config anew every time, so that FR rates are always available on FR lchans, and never on HR lchans. Depends: I03ee7ce840ecfa0b6a33358e7385528aabd4873f (libosmocore), I1f2918418c38918c5ac70acaa51a47adfca12b5e (libosmocore) Change-Id: I82e3f918295daa83274a4cf803f046979f284366
2018-05-14 16:14:15 +00:00
ts_fsm_init();
lchan_fsm_init();
bsc_subscr_conn_fsm_init();
assignment_fsm_init();
handover_fsm_init();
/* Read the config */
rc = bsc_network_configure(config_file);
if (rc < 0) {
fprintf(stderr, "Bootstrapping the network failed. exiting.\n");
exit(1);
}
/* start control interface after reading config for
* ctrl_vty_get_bind_addr() */
bsc_gsmnet->ctrl = bsc_controlif_setup(bsc_gsmnet,
ctrl_vty_get_bind_addr(),
OSMO_CTRL_PORT_NITB_BSC);
if (!bsc_gsmnet->ctrl) {
fprintf(stderr, "Failed to init the control interface. Exiting.\n");
exit(1);
}
rc = bsc_ctrl_cmds_install(bsc_gsmnet);
if (rc < 0) {
fprintf(stderr, "Failed to install control commands. Exiting.\n");
exit(1);
}
if (rf_ctrl)
osmo_talloc_replace_string(bsc_gsmnet, &bsc_gsmnet->rf_ctrl_name, rf_ctrl);
bsc_gsmnet->rf_ctrl = osmo_bsc_rf_create(bsc_gsmnet->rf_ctrl_name, bsc_gsmnet);
if (!bsc_gsmnet->rf_ctrl) {
fprintf(stderr, "Failed to create the RF service.\n");
exit(1);
}
rc = check_codec_pref(&bsc_gsmnet->mscs);
if (rc < 0) {
LOGP(DMSC, LOGL_ERROR, "Configuration contains mutually exclusive codec settings -- check"
" configuration!\n");
if (!bsc_gsmnet->allow_unusable_timeslots) {
LOGP(DMSC, LOGL_ERROR, "You should really fix that! However, you can prevent OsmoBSC from"
" stopping here by setting 'allow-unusable-timeslots' in the 'network'"
" section of the config.\n");
exit(1);
}
}
llist_for_each_entry(msc, &bsc_gsmnet->mscs, entry) {
if (osmo_bsc_msc_init(msc) != 0) {
LOGP(DMSC, LOGL_ERROR, "Failed to start up. Exiting.\n");
exit(1);
}
}
bsc_gsmnet->mgw.client = mgcp_client_init(bsc_gsmnet, bsc_gsmnet->mgw.conf);
if (mgcp_client_connect(bsc_gsmnet->mgw.client)) {
LOGP(DNM, LOGL_ERROR, "MGW connect failed at (%s:%u)\n",
bsc_gsmnet->mgw.conf->remote_addr,
bsc_gsmnet->mgw.conf->remote_port);
exit(1);
}
if (osmo_bsc_sigtran_init(&bsc_gsmnet->mscs) != 0) {
LOGP(DNM, LOGL_ERROR, "Failed to initialize sigtran backhaul.\n");
2010-11-03 15:40:03 +00:00
exit(1);
}
handover_decision_1_init();
hodec2_init(bsc_gsmnet);
bsc_cbc_link_restart();
signal(SIGINT, &signal_handler);
signal(SIGTERM, &signal_handler);
signal(SIGABRT, &signal_handler);
signal(SIGUSR1, &signal_handler);
signal(SIGUSR2, &signal_handler);
osmo_init_ignore_signals();
if (daemonize) {
rc = osmo_daemonize();
if (rc < 0) {
perror("Error during daemonize");
exit(1);
}
}
while (1) {
osmo_select_main_ctx(0);
}
return 0;
}