Attention is currently required from: daniel, fixeria, laforge, osmith.

Hello Jenkins Builder, daniel, fixeria, laforge, osmith,

I'd like you to reexamine a change. Please visit

https://gerrit.osmocom.org/c/osmo-bsc/+/41400?usp=email

to look at the new patch set (#5).

The following approvals got outdated and were removed: Code-Review+1 by osmith, Code-Review-1 by daniel, Verified-1 by Jenkins Builder

Change subject: sccplite: Handle MGCP/CTRL over SCCPLite multiplex using MTP-TRANSFER.req/ind ......................................................................

sccplite: Handle MGCP/CTRL over SCCPLite multiplex using MTP-TRANSFER.req/ind

This is needed ie. in SCCPLite, where MGCP and CTRL messages need to be sent/received over the same IPA multiplex TCP conn as the SCCPLite (SCCP/IPA) one towards a given MSC.

Prior to this, osmo-bsc-sccplite was doing lots of manual libosmo-sigtran APIs to obtain a route, an AS, and ASP, sending over an ASP, etc. Similary, the rx_unknown callback was added to libosmo-sigtran to hook into the ASP level. Tons of stuff which should really be done properly inside libosmo-sigtran and provided over the existing public SAPs, as this patch proposes.

With the proposed approach, an SCCPLite client (eg. osmo-bsc), besides setting up an sccp_user to handle SCCP, also sets an ss7_user (MTP SAP) with the newly introduced new Service Indicator (SI) MTP_SI_NI11_OSMO_IPA to be able to manage the IPA[MGCP/CTRL] traffic towards a given MTP peer (SCCPLite client, ie. MSC).

Related: SYS#6880 Depends: libosmo-sigtran.git Change-Id I9fedb26ccd3434fc7f272feb3c45cf4bdb80c7ae Change-Id: I567ed206eab1add21836bfd937f3790d3d7a00d7 --- M TODO-RELEASE M include/osmocom/bsc/bsc_msc_data.h M include/osmocom/bsc/osmo_bsc_sigtran.h M src/osmo-bsc/bsc_ctrl.c M src/osmo-bsc/osmo_bsc_mgcp.c M src/osmo-bsc/osmo_bsc_sigtran.c 6 files changed, 157 insertions(+), 116 deletions(-)

git pull ssh://gerrit.osmocom.org:29418/osmo-bsc refs/changes/00/41400/5