diff options
| author | Pau Espin Pedrol <pespin@sysmocom.de> | 2023-07-13 11:54:18 +0200 |
|---|---|---|
| committer | Pau Espin Pedrol <pespin@sysmocom.de> | 2023-08-08 16:12:53 +0200 |
| commit | 7521a5877b5cb81c2902bb231819263bd9109f8e (patch) | |
| tree | 851f602d8f87466099534430860a4942a51d9116 | |
| parent | aecf85705cb59ca4a2ba4f35530f3375e0c84e64 (diff) | |
trans_lcls_compose(): Set PLMN fron cell currently in use
The MS in general provides the Selected PLMN ID (IE) in the Complete
Layer 3 Information message. osmo-msc handles that message in
msc_a_ran_dec_from_msc_i() and stores the information of the PLMN in
msc_a->via_cell. If no PLMN information is provided in the message, then
at that same place the PLMN configured in the VTY is taken as an implicit
default.
This patch changes trans_lcls_compose() to use the PLMN stored in
msc_a->via_cell instead of the VTY configured one, meaning the PLMN
provided by the MS (through the RAN in use) is used if available
(otherwise the VTY-configure one is still used, as before).
With this patch the PLMN VTY config option use is relegated to a single
point of use in msc_a_ran_dec_from_msc_i() where the Complete Layer 3
Information is used. As a result, it becomes clear now that the VTY
config is only applied in the scenario where no PLMN is provided at that
time.
Related: SYS#6360
Change-Id: Ibad0005a1d7cef64dd8fefa3e554ba99a06c3666
| -rw-r--r-- | src/libmsc/transaction.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/libmsc/transaction.c b/src/libmsc/transaction.c index 89f77e56f..3e458f127 100644 --- a/src/libmsc/transaction.c +++ b/src/libmsc/transaction.c @@ -153,7 +153,7 @@ struct osmo_lcls *trans_lcls_compose(const struct gsm_trans *trans, bool use_lac lcls->gcr.node = ss7->cfg.primary_pc; /* net id from Q.1902.3 3-5 bytes, this function gives 3 bytes exactly */ - osmo_plmn_to_bcd(lcls->gcr.net, &trans->net->plmn); + osmo_plmn_to_bcd(lcls->gcr.net, &trans->msc_a->via_cell.lai.plmn); /* TS 29.205 Table B.2.1.9.2 Call Reference ID |