tree 73694b78000a9779ae6ae931f4bc465af5feaeda
parent 647c106d1c39cdd11d40aea7e6913c8ca8bdee4d
author Neels Hofmeyr <neels@hofmeyr.de> 1575033581 +0100
committer Neels Hofmeyr <neels@hofmeyr.de> 1588078435 +0200

gsup_server: send routing error back to the correct peer

If a peer attempts to add a route to an ipa-name that we already have in the
routing system, don't send the routing error to the peer that already has the
name, but to the peer that attempts to re-use it and would cause the collision.

This is fixing a situation where for example a locally attached MSC has name
'MSC-1', and a remote site is proxying GSUP here for a remote MSC that also has
the name 'MSC-1'. Send the routing error back to the proxy, not local 'MSC-1'.

Change-Id: Icafaedc11b5925149d338bdcb987ae985a7323d6