GSUP: set default ipa-name at application level
Prior to this change, if there was no explicit ipa-name configuration
in OsmoMSC, OsmoHLR would see the GSUP connection as MSC-00-00-00-00-00-00.
However, this default is constructed somewhere deep in IPA libraries
and is not visible to the GSUP client application, in this case OsmoMSC.
This situation creates a problem for SMS-over-GSUP routing: when we get
MT-forwardSM.req from an SMSC, we have to send a GSUP response, and this
response needs to get back to the MT-sending SMSC. Because OsmoHLR
applies only passive routing for these responses, we have to set
source_name when generating MT-forwardSM.res in OsmoMSC - but we cannot
do so if don't know our own IPA name.
Change the default OsmoMSC ipa-name from MSC-00-00-00-00-00-00 to
unnamed-MSC, mirroring OsmoHLR default of unnamed-HLR, and set it
at our application level rather than deep in the libraries.
Related: OS#6135
Change-Id: I7bacd001b81326c32bc262c7d0c0491ded822fa8
diff --git a/src/libmsc/msc_vty.c b/src/libmsc/msc_vty.c
index 70b3b6b..f693cb6 100644
--- a/src/libmsc/msc_vty.c
+++ b/src/libmsc/msc_vty.c
@@ -1991,7 +1991,7 @@
"Set the IPA name of this MSC\n"
"A unique name for this MSC. For example: PLMN + redundancy server number: MSC-901-70-0. "
"This name is used for GSUP routing and must be set if more than one MSC is connected to the HLR. "
- "The default is 'MSC-00-00-00-00-00-00'.\n")
+ "The default is 'unnamed-MSC'.\n")
{
if (vty->type != VTY_FILE) {
vty_out(vty, "The IPA name cannot be changed at run-time; "