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-rw-r--r--src/libmsc/transaction.c221
1 files changed, 0 insertions, 221 deletions
diff --git a/src/libmsc/transaction.c b/src/libmsc/transaction.c
deleted file mode 100644
index 28e0914a8..000000000
--- a/src/libmsc/transaction.c
+++ /dev/null
@@ -1,221 +0,0 @@
-/* GSM 04.07 Transaction handling */
-
-/* (C) 2009 by Harald Welte <laforge@gnumonks.org>
- * 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/transaction.h>
-#include <openbsc/gsm_data.h>
-#include <openbsc/mncc.h>
-#include <openbsc/debug.h>
-#include <osmocom/core/talloc.h>
-#include <openbsc/gsm_04_08.h>
-#include <openbsc/mncc.h>
-#include <openbsc/paging.h>
-#include <openbsc/osmo_msc.h>
-#include <openbsc/vlr.h>
-
-void *tall_trans_ctx;
-
-void _gsm48_cc_trans_free(struct gsm_trans *trans);
-
-/*! Find a transaction in connection for given protocol + transaction ID
- * \param[in] conn Connection in whihc we want to find transaction
- * \param[in] proto Protocol of transaction
- * \param[in] trans_id Transaction ID of transaction
- * \returns Matching transaction, if any
- */
-struct gsm_trans *trans_find_by_id(struct gsm_subscriber_connection *conn,
- uint8_t proto, uint8_t trans_id)
-{
- struct gsm_trans *trans;
- struct gsm_network *net = conn->network;
- struct vlr_subscr *vsub = conn->vsub;
-
- llist_for_each_entry(trans, &net->trans_list, entry) {
- if (trans->vsub == vsub &&
- trans->protocol == proto &&
- trans->transaction_id == trans_id)
- return trans;
- }
- return NULL;
-}
-
-/*! Find a transaction by call reference
- * \param[in] net Network in which we should search
- * \param[in] callref Call Reference of transaction
- * \returns Matching transaction, if any
- */
-struct gsm_trans *trans_find_by_callref(struct gsm_network *net,
- uint32_t callref)
-{
- struct gsm_trans *trans;
-
- llist_for_each_entry(trans, &net->trans_list, entry) {
- if (trans->callref == callref)
- return trans;
- }
- return NULL;
-}
-
-/*! Allocate a new transaction and add it to network list
- * \param[in] net Netwokr in which we allocate transaction
- * \param[in] subscr Subscriber for which we allocate transaction
- * \param[in] protocol Protocol (CC/SMS/...)
- * \param[in] callref Call Reference
- * \returns Transaction
- */
-struct gsm_trans *trans_alloc(struct gsm_network *net,
- struct vlr_subscr *vsub,
- uint8_t protocol, uint8_t trans_id,
- uint32_t callref)
-{
- struct gsm_trans *trans;
-
- DEBUGP(DCC, "subscr=%p, net=%p\n", vsub, net);
-
- /* a valid subscriber is indispensable */
- if (vsub == NULL) {
- LOGP(DCC, LOGL_NOTICE,
- "unable to alloc transaction, invalid subscriber (NULL)\n");
- return NULL;
- }
-
- trans = talloc_zero(tall_trans_ctx, struct gsm_trans);
- if (!trans)
- return NULL;
-
- trans->vsub = vlr_subscr_get(vsub);
-
- trans->protocol = protocol;
- trans->transaction_id = trans_id;
- trans->callref = callref;
-
- trans->net = net;
- llist_add_tail(&trans->entry, &net->trans_list);
-
- return trans;
-}
-
-/*! Release a transaction
- * \param[in] trans Transaction to be released
- */
-void trans_free(struct gsm_trans *trans)
-{
- switch (trans->protocol) {
- case GSM48_PDISC_CC:
- _gsm48_cc_trans_free(trans);
- break;
- case GSM48_PDISC_SMS:
- _gsm411_sms_trans_free(trans);
- break;
- }
-
- if (trans->paging_request) {
- subscr_remove_request(trans->paging_request);
- trans->paging_request = NULL;
- }
-
- if (trans->vsub) {
- vlr_subscr_put(trans->vsub);
- trans->vsub = NULL;
- }
-
- llist_del(&trans->entry);
-
- if (trans->conn)
- msc_subscr_conn_put(trans->conn);
-
- trans->conn = NULL;
- talloc_free(trans);
-}
-
-/*! allocate an unused transaction ID for the given subscriber
- * in the given protocol using the ti_flag specified
- * \param[in] net GSM network
- * \param[in] subscr Subscriber for which to find ID
- * \param[in] protocol Protocol for whihc to find ID
- * \param[in] ti_flag FIXME
- */
-int trans_assign_trans_id(struct gsm_network *net, struct vlr_subscr *vsub,
- uint8_t protocol, uint8_t ti_flag)
-{
- struct gsm_trans *trans;
- unsigned int used_tid_bitmask = 0;
- int i, j, h;
-
- if (ti_flag)
- ti_flag = 0x8;
-
- /* generate bitmask of already-used TIDs for this (subscr,proto) */
- llist_for_each_entry(trans, &net->trans_list, entry) {
- if (trans->vsub != vsub ||
- trans->protocol != protocol ||
- trans->transaction_id == 0xff)
- continue;
- used_tid_bitmask |= (1 << trans->transaction_id);
- }
-
- /* find a new one, trying to go in a 'circular' pattern */
- for (h = 6; h > 0; h--)
- if (used_tid_bitmask & (1 << (h | ti_flag)))
- break;
- for (i = 0; i < 7; i++) {
- j = ((h + i) % 7) | ti_flag;
- if ((used_tid_bitmask & (1 << j)) == 0)
- return j;
- }
-
- return -1;
-}
-
-/*! Check if we have any transaction for given connection
- * \param[in] conn Connection to check
- * \returns 1 in case there is a transaction, 0 otherwise
- */
-struct gsm_trans *trans_has_conn(const struct gsm_subscriber_connection *conn)
-{
- struct gsm_trans *trans;
-
- llist_for_each_entry(trans, &conn->network->trans_list, entry)
- if (trans->conn == conn)
- return trans;
-
- return NULL;
-}
-
-/*! Free all transactions associated with a connection, presumably when the
- * conn is being closed. The transaction code will inform the CC or SMS
- * facilities, which will then send the necessary release indications.
- * \param[in] conn Connection that is going to be closed.
- */
-void trans_conn_closed(struct gsm_subscriber_connection *conn)
-{
- struct gsm_trans *trans;
-
- /* As part of the CC REL_IND the remote leg might be released and this
- * will trigger another call to trans_free. This is something the llist
- * macro can not handle and we need to re-iterate the list every time.
- */
-restart:
- llist_for_each_entry(trans, &conn->network->trans_list, entry) {
- if (trans->conn == conn) {
- trans_free(trans);
- goto restart;
- }
- }
-}
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