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authorPhilipp Maier <pmaier@sysmocom.de>2017-06-12 14:06:18 +0200
committerNeels Hofmeyr <nhofmeyr@sysmocom.de>2017-06-18 17:50:09 +0200
commit5cb12d0a2c75aa9624a1a95f3f98d7ad39ac05f8 (patch)
treecf00f10839e9e990c14f7c982e346c6dd25cf3a1
parent151feb99c3cd3bb1146e7b5a03e44f4bf2b05512 (diff)
sccp-lite: remove old sccp-lite code
in osmo_bsc_sccp.c all code is commented out. There is no point in keeping the file. This commit deletes it.
-rw-r--r--openbsc/src/osmo-bsc/Makefile.am1
-rw-r--r--openbsc/src/osmo-bsc/osmo_bsc_sccp.c349
2 files changed, 0 insertions, 350 deletions
diff --git a/openbsc/src/osmo-bsc/Makefile.am b/openbsc/src/osmo-bsc/Makefile.am
index 32e2cee..6aa27d2 100644
--- a/openbsc/src/osmo-bsc/Makefile.am
+++ b/openbsc/src/osmo-bsc/Makefile.am
@@ -32,7 +32,6 @@ osmo_bsc_SOURCES = \
osmo_bsc_grace.c \
osmo_bsc_msc.c \
osmo_bsc_reset.c \
- osmo_bsc_sccp.c \
osmo_bsc_sigtran.c \
osmo_bsc_filter.c \
osmo_bsc_bssap.c \
diff --git a/openbsc/src/osmo-bsc/osmo_bsc_sccp.c b/openbsc/src/osmo-bsc/osmo_bsc_sccp.c
deleted file mode 100644
index f54dc31..0000000
--- a/openbsc/src/osmo-bsc/osmo_bsc_sccp.c
+++ /dev/null
@@ -1,349 +0,0 @@
-/* Interaction with the SCCP subsystem */
-/*
- * (C) 2009-2014 by Holger Hans Peter Freyther <zecke@selfish.org>
- * (C) 2009-2014 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
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
-
-#include <openbsc/gsm_data.h>
-#include <openbsc/osmo_bsc.h>
-#include <openbsc/osmo_bsc_grace.h>
-#include <openbsc/bsc_msc_data.h>
-#include <openbsc/gsm_04_80.h>
-#include <openbsc/debug.h>
-#include <openbsc/ipaccess.h>
-#include <openbsc/signal.h>
-
-#include <osmocom/core/talloc.h>
-#include <osmocom/gsm/gsm0808.h>
-#include <osmocom/gsm/protocol/gsm_08_08.h>
-
-#include <osmocom/sccp/sccp.h>
-
-/* SCCP helper */
-#define SCCP_IT_TIMER 60
-
-#if 0
-static LLIST_HEAD(active_connections);
-
-static void free_queued(struct osmo_bsc_sccp_con *conn)
-{
- struct msgb *msg;
-
- while (!llist_empty(&conn->sccp_queue)) {
- /* this is not allowed to fail */
- msg = msgb_dequeue(&conn->sccp_queue);
- msgb_free(msg);
- }
-
- conn->sccp_queue_size = 0;
-}
-
-static void send_queued(struct osmo_bsc_sccp_con *conn)
-{
- struct msgb *msg;
-
- while (!llist_empty(&conn->sccp_queue)) {
- /* this is not allowed to fail */
- msg = msgb_dequeue(&conn->sccp_queue);
- sccp_connection_write(conn->sccp, msg);
- msgb_free(msg);
- conn->sccp_queue_size -= 1;
- }
-}
-
-static void msc_outgoing_sccp_data(struct sccp_connection *conn,
- struct msgb *msg, unsigned int len)
-{
- struct osmo_bsc_sccp_con *bsc_con =
- (struct osmo_bsc_sccp_con *) conn->data_ctx;
-
- bsc_handle_dt1(bsc_con, msg, len);
-}
-
-static void msc_outgoing_sccp_state(struct sccp_connection *conn, int old_state)
-{
- struct osmo_bsc_sccp_con *con_data;
-
- if (conn->connection_state >= SCCP_CONNECTION_STATE_RELEASE_COMPLETE) {
- con_data = (struct osmo_bsc_sccp_con *) conn->data_ctx;
- if (con_data->conn) {
- LOGP(DMSC, LOGL_ERROR,
- "ERROR: The lchan is still associated.\n");
- gsm0808_clear(con_data->conn);
- bsc_subscr_con_free(con_data->conn);
- con_data->conn = NULL;
- }
-
- con_data->sccp = NULL;
- free_queued(con_data);
- sccp_connection_free(conn);
- bsc_delete_connection(con_data);
- } else if (conn->connection_state == SCCP_CONNECTION_STATE_ESTABLISHED) {
- LOGP(DMSC, LOGL_DEBUG, "Connection established: %p\n", conn);
- con_data = (struct osmo_bsc_sccp_con *) conn->data_ctx;
-
- osmo_timer_del(&con_data->sccp_cc_timeout);
- osmo_timer_schedule(&con_data->sccp_it_timeout, SCCP_IT_TIMER, 0);
-
- send_queued(con_data);
- }
-}
-
-static void bsc_sccp_force_free(struct osmo_bsc_sccp_con *data)
-{
- if (data->conn) {
- gsm0808_clear(data->conn);
- bsc_subscr_con_free(data->conn);
- data->conn = NULL;
- }
-
- free_queued(data);
- sccp_connection_force_free(data->sccp);
- data->sccp = NULL;
- bsc_delete_connection(data);
-}
-
-static void sccp_it_timeout(void *_data)
-{
- struct osmo_bsc_sccp_con *data =
- (struct osmo_bsc_sccp_con *) _data;
-
- sccp_connection_send_it(data->sccp);
- osmo_timer_schedule(&data->sccp_it_timeout, SCCP_IT_TIMER, 0);
-}
-
-static void sccp_cc_timeout(void *_data)
-{
- struct osmo_bsc_sccp_con *data =
- (struct osmo_bsc_sccp_con *) _data;
-
- if (data->sccp->connection_state >= SCCP_CONNECTION_STATE_ESTABLISHED)
- return;
-
- LOGP(DMSC, LOGL_ERROR, "The connection was never established.\n");
- bsc_sccp_force_free(data);
-}
-
-static void msc_sccp_write_ipa(struct sccp_connection *conn, struct msgb *msg,
- void *global_ctx, void *ctx)
-{
- struct bsc_msc_connection *msc_con;
-
- if (conn) {
- struct osmo_bsc_sccp_con *bsc_con = conn->data_ctx;
- msc_con = bsc_con->msc->msc_con;
- if (bsc_con->send_ping) {
- bsc_con->send_ping = 0;
- msc_queue_write_with_ping(msc_con, msg, IPAC_PROTO_SCCP);
- return;
- }
- } else {
- msc_con = ctx;
- }
-
- msc_queue_write(msc_con, msg, IPAC_PROTO_SCCP);
-}
-
-static int msc_sccp_accept(struct sccp_connection *connection, void *data)
-{
- LOGP(DMSC, LOGL_DEBUG, "Rejecting incoming SCCP connection.\n");
- return -1;
-}
-
-static int msc_sccp_read(struct msgb *msgb, unsigned int length, void *data)
-{
- struct bsc_msc_data *msc = (struct bsc_msc_data *) msgb->cb[0];
- return bsc_handle_udt(msc, msgb, length);
-}
-
-int bsc_queue_for_msc(struct osmo_bsc_sccp_con *conn, struct msgb *msg)
-{
-
- printf("==================> bsc_queue_for_msc()\n");
-#if 0
- struct sccp_connection *sccp = conn->sccp;
-
- if (sccp->connection_state > SCCP_CONNECTION_STATE_ESTABLISHED) {
- LOGP(DMSC, LOGL_ERROR, "Connection closing, dropping packet on: %p\n", sccp);
- msgb_free(msg);
- } else if (sccp->connection_state == SCCP_CONNECTION_STATE_ESTABLISHED
- && conn->sccp_queue_size == 0) {
- sccp_connection_write(sccp, msg);
- msgb_free(msg);
- } else if (conn->sccp_queue_size > 10) {
- LOGP(DMSC, LOGL_ERROR, "Connection closing, dropping packet on: %p\n", sccp);
- msgb_free(msg);
- } else {
- LOGP(DMSC, LOGL_DEBUG, "Queueing packet on %p. Queue size: %d\n", sccp, conn->sccp_queue_size);
- conn->sccp_queue_size += 1;
- msgb_enqueue(&conn->sccp_queue, msg);
- }
-#endif
-
- return 0;
-}
-
-enum bsc_con bsc_create_new_connection(struct gsm_subscriber_connection *conn,
- struct bsc_msc_data *msc, int send_ping)
-{
-
- printf("==================> bsc_con bsc_create_new_connection()\n");
-#if 0
- struct osmo_bsc_sccp_con *bsc_con;
- struct sccp_connection *sccp;
-
- /* This should not trigger */
- if (!msc || !msc->msc_con->is_authenticated) {
- LOGP(DMSC, LOGL_ERROR,
- "How did this happen? MSC is not connected. Dropping.\n");
- return BSC_CON_REJECT_NO_LINK;
- }
-
- if (!bsc_grace_allow_new_connection(conn->bts->network, conn->bts)) {
- LOGP(DMSC, LOGL_NOTICE, "BSC in grace period. No new connections.\n");
- return BSC_CON_REJECT_RF_GRACE;
- }
-
- sccp = sccp_connection_socket();
- if (!sccp) {
- LOGP(DMSC, LOGL_ERROR, "Failed to allocate memory.\n");
- return BSC_CON_NO_MEM;
- }
-
- bsc_con = talloc_zero(conn->bts, struct osmo_bsc_sccp_con);
- if (!bsc_con) {
- LOGP(DMSC, LOGL_ERROR, "Failed to allocate.\n");
- sccp_connection_free(sccp);
- return BSC_CON_NO_MEM;
- }
-
- /* callbacks */
- sccp->state_cb = msc_outgoing_sccp_state;
- sccp->data_cb = msc_outgoing_sccp_data;
- sccp->data_ctx = bsc_con;
-
- bsc_con->send_ping = send_ping;
-
- /* prepare the timers */
- osmo_timer_setup(&bsc_con->sccp_it_timeout, sccp_it_timeout, bsc_con);
- osmo_timer_setup(&bsc_con->sccp_cc_timeout, sccp_cc_timeout, bsc_con);
-
- INIT_LLIST_HEAD(&bsc_con->sccp_queue);
-
- bsc_con->sccp = sccp;
- bsc_con->msc = msc;
- bsc_con->conn = conn;
- llist_add_tail(&bsc_con->entry, &active_connections);
- conn->sccp_con = bsc_con;
- return BSC_CON_SUCCESS;
-
-#endif
- return BSC_CON_SUCCESS;
-}
-
-int bsc_open_connection(struct osmo_bsc_sccp_con *conn, struct msgb *msg)
-{
- printf("======================> bsc_open_connection()\n");
-
-
-// osmo_timer_schedule(&conn->sccp_cc_timeout, 10, 0);
-// sccp_connection_connect(conn->sccp, &sccp_ssn_bssap, msg);
-// msgb_free(msg);
- return 0;
-}
-
-int bsc_delete_connection(struct osmo_bsc_sccp_con *sccp)
-{
- printf("======================> bsc_delete_connection()\n");
- return 0;
-
-#if 0
-
- if (!sccp)
- return 0;
-
- if (sccp->conn)
- LOGP(DMSC, LOGL_ERROR, "Should have been cleared.\n");
-
- llist_del(&sccp->entry);
- osmo_timer_del(&sccp->sccp_it_timeout);
- osmo_timer_del(&sccp->sccp_cc_timeout);
- talloc_free(sccp);
- return 0;
-#endif
-}
-
-static void bsc_notify_msc_lost(struct osmo_bsc_sccp_con *con)
-{
- struct gsm_subscriber_connection *conn = con->conn;
-
- /* send USSD notification if string configured and con->data is set */
- if (!conn)
- return;
-
- /* check for config string */
- if (!con->msc->ussd_msc_lost_txt)
- return;
- if (con->msc->ussd_msc_lost_txt[0] == '\0')
- return;
-
- /* send USSD notification */
- bsc_send_ussd_notify(conn, 1, conn->sccp_con->msc->ussd_msc_lost_txt);
- bsc_send_ussd_release_complete(conn);
-}
-
-static void bsc_notify_and_close_conns(struct bsc_msc_connection *msc_con)
-{
- struct osmo_bsc_sccp_con *con, *tmp;
-
- llist_for_each_entry_safe(con, tmp, &active_connections, entry) {
- if (con->msc->msc_con != msc_con)
- continue;
-
- bsc_notify_msc_lost(con);
- bsc_sccp_force_free(con);
- }
-}
-
-static int handle_msc_signal(unsigned int subsys, unsigned int signal,
- void *handler_data, void *signal_data)
-{
- struct msc_signal_data *msc;
-
- if (subsys != SS_MSC)
- return 0;
-
- msc = signal_data;
- if (signal == S_MSC_LOST)
- bsc_notify_and_close_conns(msc->data->msc_con);
-
- return 0;
-}
-
-int osmo_bsc_sccp_init(struct gsm_network *gsmnet)
-{
- sccp_set_log_area(DSCCP);
- sccp_system_init(msc_sccp_write_ipa, gsmnet);
- sccp_connection_set_incoming(&sccp_ssn_bssap, msc_sccp_accept, NULL);
- sccp_set_read(&sccp_ssn_bssap, msc_sccp_read, gsmnet);
-
- osmo_signal_register_handler(SS_MSC, handle_msc_signal, gsmnet);
-
- return 0;
-}
-#endif