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| author |   Alexander Couzens <lynxis@fe80.eu> | 2021-01-20 17:42:48 +0100 |
|---|---|---|
| committer | Alexander Couzens <lynxis@fe80.eu> | 2021-02-16 16:29:47 +0100 |
| commit | 4f1128fcbd462fc5b7fe900d2daa09576e308736 (patch) | |
| tree | 60ee7914864059af0ccb375a43268a02a8ede5be /src/gb/gprs_ns2_internal.h | |
| parent | gsm: Fix encoding of gsm0808_cell_id_list2 with CGI-PS types (diff) | |
| download | libosmocore-4f1128fcbd462fc5b7fe900d2daa09576e308736.tar.xz libosmocore-4f1128fcbd462fc5b7fe900d2daa09576e308736.zip | |
gprs_ns2: inform the NS user (BSSGP) about the MTU of a NSE
The BSSGP layer needs to know the MTU of the NS UNIDATA payload.
The MTU can be 0 if the NSE doesn't contain any NSVC.
Every status indication will contain the mtu value.
The MTU in the status indication contains the maximum transfer
unit of a BSSGP message. From NS side the maximum SDU.
Related: OS#4889
Change-Id: I5016b295db6185ec131d83089cf6c806e34ef1b6
Diffstat (limited to 'src/gb/gprs_ns2_internal.h')
| -rw-r--r-- | src/gb/gprs_ns2_internal.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/gb/gprs_ns2_internal.h b/src/gb/gprs_ns2_internal.h index d4764f65..7e235be9 100644 --- a/src/gb/gprs_ns2_internal.h +++ b/src/gb/gprs_ns2_internal.h @@ -179,6 +179,9 @@ struct gprs_ns2_nse { /*! sum of all the signalling weight of _alive_ NS-VCs */ uint32_t sum_sig_weight; + + /*! MTU of a NS PDU. This is the lowest MTU of all NSVCs */ + uint16_t mtu; }; /*! Structure representing a single NS-VC */ @@ -244,6 +247,9 @@ struct gprs_ns2_vc_bind { /*! transfer capability in mbit */ int transfer_capability; + /*! MTU of a NS PDU on this bind. */ + uint16_t mtu; + /*! which link-layer are we based on? */ enum gprs_ns2_ll ll; @@ -298,6 +304,7 @@ void ns2_prim_status_ind(struct gprs_ns2_nse *nse, uint16_t bvci, enum gprs_ns2_affecting_cause cause); void ns2_nse_notify_alive(struct gprs_ns2_vc *nsvc, bool alive); +void ns2_nse_update_mtu(struct gprs_ns2_nse *nse); /* message */ int ns2_validate(struct gprs_ns2_vc *nsvc, |