move allocating new transaction_ids to transaction.c
diff --git a/openbsc/src/transaction.c b/openbsc/src/transaction.c
index e917cdd..f4cef28 100644
--- a/openbsc/src/transaction.c
+++ b/openbsc/src/transaction.c
@@ -113,13 +113,18 @@
talloc_free(trans);
}
-#if 0
+/* allocate an unused transaction ID for the given subscriber
+ * in the given protocol using the ti_flag specified */
int trans_assign_trans_id(struct gsm_subscriber *subscr,
u_int8_t protocol, u_int8_t ti_flag)
{
struct gsm_network *net = subscr->net;
struct gsm_trans *trans;
unsigned int used_tid_bitmask = 0;
+ int i;
+
+ 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) {
@@ -130,5 +135,10 @@
used_tid_bitmask |= (1 << trans->transaction_id);
}
+ for (i = 0; i <= 7; i++) {
+ if ((used_tid_bitmask & (1 << (i | ti_flag))) == 0)
+ return i | ti_flag;
+ }
+
+ return -1;
}
-#endif