Import upstream version 0.9.13
diff --git a/include/openbsc/transaction.h b/include/openbsc/transaction.h
new file mode 100644
index 0000000..e41d8ef
--- /dev/null
+++ b/include/openbsc/transaction.h
@@ -0,0 +1,75 @@
+#ifndef _TRANSACT_H
+#define _TRANSACT_H
+
+#include <openbsc/gsm_data.h>
+#include <openbsc/gsm_subscriber.h>
+#include <osmocore/linuxlist.h>
+#include <openbsc/gsm_04_11.h>
+
+/* One transaction */
+struct gsm_trans {
+ /* Entry in list of all transactions */
+ struct llist_head entry;
+
+ /* The protocol within which we live */
+ u_int8_t protocol;
+
+ /* The current transaction ID */
+ u_int8_t transaction_id;
+
+ /* To whom we belong, unique identifier of remote MM entity */
+ struct gsm_subscriber *subscr;
+
+ /* The associated connection we are using to transmit messages */
+ struct gsm_subscriber_connection *conn;
+
+ /* reference from MNCC or other application */
+ u_int32_t callref;
+
+ /* if traffic channel receive was requested */
+ int tch_recv;
+
+ /* is thats one paging? */
+ struct gsm_network **paging_request;
+
+ union {
+ struct {
+
+ /* current call state */
+ int state;
+
+ /* current timer and message queue */
+ int Tcurrent; /* current CC timer */
+ int T308_second; /* used to send release again */
+ struct timer_list timer;
+ struct gsm_mncc msg; /* stores setup/disconnect/release message */
+ } cc;
+ struct {
+ u_int8_t link_id; /* RSL Link ID to be used for this trans */
+ int is_mt; /* is this a MO (0) or MT (1) transfer */
+ enum gsm411_cp_state cp_state;
+ struct timer_list cp_timer;
+
+ enum gsm411_rp_state rp_state;
+
+ struct gsm_sms *sms;
+ } sms;
+ };
+};
+
+
+
+struct gsm_trans *trans_find_by_id(struct gsm_subscriber *subscr,
+ u_int8_t proto, u_int8_t trans_id);
+struct gsm_trans *trans_find_by_callref(struct gsm_network *net,
+ u_int32_t callref);
+
+struct gsm_trans *trans_alloc(struct gsm_subscriber *subscr,
+ u_int8_t protocol, u_int8_t trans_id,
+ u_int32_t callref);
+void trans_free(struct gsm_trans *trans);
+
+int trans_assign_trans_id(struct gsm_subscriber *subscr,
+ u_int8_t protocol, u_int8_t ti_flag);
+
+#endif