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authorAndreas Eversberg <jolly@eversberg.eu>2013-06-12 08:20:36 +0200
committerAndreas Eversberg <jolly@eversberg.eu>2013-07-29 12:44:40 +0200
commit3881195ace5e786d099b35429842b99a1573c2dc (patch)
tree1db66f5c67bd50d6f0c1abbd7314c2c241d4f0d5
parent651de31ab94418c694a85fe35f8ed10ea9726a81 (diff)
Do not perform assignment, if the new channel equals the current one
This can happen, if a TCH/H was requested, but because it is not available, a TCH/F is allocated. If the old channel was TCH/F already, it makes no sense to assign it.
-rw-r--r--openbsc/src/libbsc/bsc_api.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/openbsc/src/libbsc/bsc_api.c b/openbsc/src/libbsc/bsc_api.c
index 75bb3e100..991c44dfa 100644
--- a/openbsc/src/libbsc/bsc_api.c
+++ b/openbsc/src/libbsc/bsc_api.c
@@ -210,6 +210,13 @@ static int handle_new_assignment(struct gsm_subscriber_connection *conn, int cha
return -1;
}
+ /* check if we are on TCH/F and requested TCH/H, but got TCH/F */
+ if (conn->lchan->type == new_lchan->type) {
+ lchan_free(new_lchan);
+ LOGP(DMSC, LOGL_NOTICE, "Not assign to equal channel rate.\n");
+ return -1;
+ }
+
/* copy old data to the new channel */
memcpy(&new_lchan->encr, &conn->lchan->encr, sizeof(new_lchan->encr));
new_lchan->ms_power = conn->lchan->ms_power;