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osmo-msc
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bsc: Start creating 08.08 like API 

The 08.08 API will interface with the internal BSC code and it is
the boundary between MSC and BSC. So nothing that calls the BSC
functionality should know about lchan or such.
This commit is contained in:
Holger Hans Peter Freyther 2010-03-23 07:40:46 +01:00
parent 5179c8ef0b
commit ec32b5860e
5 changed files with 45 additions and 14 deletions
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2
openbsc/include/openbsc/Makefile.am
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@ -7,5 +7,5 @@ noinst_HEADERS = abis_nm.h abis_rsl.h db.h gsm_04_08.h gsm_data.h \
silent_call.h mgcp.h meas_rep.h rest_octets.h \
system_information.h handover.h mgcp_internal.h
openbsc_HEADERS = gsm_04_08.h meas_rep.h
openbsc_HEADERS = gsm_04_08.h meas_rep.h bsc_api.h
openbscdir = $(includedir)/openbsc

6
openbsc/include/openbsc/bsc_api.h Normal file
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@ -0,0 +1,6 @@
/* GSM 08.08 like API for OpenBSC */
#include "gsm_data.h"
int gsm0808_submit_dtap(struct gsm_subscriber_connection *conn, struct msgb *msg, int link_id);

2
openbsc/src/Makefile.am
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@ -17,7 +17,7 @@ libbsc_a_SOURCES = abis_rsl.c abis_nm.c gsm_data.c gsm_04_08_utils.c \
input/misdn.c input/ipaccess.c \
talloc_ctx.c system_information.c rest_octets.c \
rtp_proxy.c bts_siemens_bs11.c bts_ipaccess_nanobts.c \
bts_unknown.c bsc_version.c
bts_unknown.c bsc_version.c bsc_api.c
libmsc_a_SOURCES = gsm_subscriber.c db.c telnet_interface.c \
mncc.c gsm_04_08.c gsm_04_11.c transaction.c \

33
openbsc/src/bsc_api.c Normal file
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@ -0,0 +1,33 @@
/* GSM 08.08 like API for OpenBSC. The bridge from MSC to BSC */
/* (C) 2010 by Holger Hans Peter Freyther
*
* All Rights Reserved
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
*/
#include <openbsc/bsc_api.h>
#include <openbsc/abis_rsl.h>
int gsm0808_submit_dtap(struct gsm_subscriber_connection *conn,
struct msgb *msg, int link_id)
{
msg->lchan = conn->lchan;
msg->trx = msg->lchan->ts->trx;
return rsl_data_request(msg, link_id);
}

16
openbsc/src/gsm_04_11.c
View File

@ -122,16 +122,11 @@ struct msgb *gsm411_msgb_alloc(void)
"GSM 04.11");
}
static int gsm411_sendmsg(struct msgb *msg, u_int8_t link_id)
static int gsm411_sendmsg(struct gsm_subscriber_connection *conn, struct msgb *msg, u_int8_t link_id)
{
if (msg->lchan)
msg->trx = msg->lchan->ts->trx;
msg->l3h = msg->data;
DEBUGP(DSMS, "GSM4.11 TX %s\n", hexdump(msg->data, msg->len));
return rsl_data_request(msg, link_id);
msg->l3h = msg->data;
return gsm0808_submit_dtap(conn, msg, link_id);
}
/* SMC TC1* is expired */
@ -155,9 +150,6 @@ static int gsm411_cp_sendmsg(struct msgb *msg, struct gsm_trans *trans,
gh->proto_discr = trans->protocol | (trans->transaction_id<<4);
gh->msg_type = msg_type;
/* assign the outgoing lchan */
msg->lchan = trans->conn->lchan;
/* mobile originating */
switch (gh->msg_type) {
case GSM411_MT_CP_DATA:
@ -180,7 +172,7 @@ static int gsm411_cp_sendmsg(struct msgb *msg, struct gsm_trans *trans,
DEBUGPC(DSMS, "trans=%x\n", trans->transaction_id);
return gsm411_sendmsg(msg, trans->sms.link_id);
return gsm411_sendmsg(trans->conn, msg, trans->sms.link_id);
}
/* Prefix msg with a RP-DATA header and send as CP-DATA */