Change in osmo-msc[master]: GSUP: include terminating nul in inter-MSC source/destination name
gerrit-no-reply at lists.osmocom.org
Tue May 7 23:42:36 UTC 2019
Hello Harald Welte, Jenkins Builder,
I'd like you to reexamine a change. Please visit
to look at the new patch set (#4).
Change subject: GSUP: include terminating nul in inter-MSC source/destination name
GSUP: include terminating nul in inter-MSC source/destination name
Before, I was testing with osmo-hlr patch
I01a45900e14d41bcd338f50ad85d9fabf2c61405 applied, but that patch is currently
in an abandoned state.
This is the counterpart implemented in osmo-msc: always include the terminating
nul char in the "blob" that is the MSC IPA name.
The dualities in the formats of routing between MSCs is whether to handle it as
a char*, or as a uint8_t* with explicit len (a blob).
In the VTY config to indicate target MSCs for inter-MSC handover, we have
strings. We currently even completely lack a way of configuring any blob-like
data as a VTY config item.
In osmo-hlr, the IPA names used for routing are currently received as a char*
which *includes* the terminating nul char. So in osmo-msc, if we also always
include the nul char, it works.
Instead, we could just send the char* part without the nul char, and apply
above mentioned osmo-hlr patch. That patch would magically match a name that
lacks a nul with a name that includes one. I think it is better to agree on one
format on the GSUP wire now, instead of making assumptions in osmo-hlr on the
format of the source/target names for routing. This format, from the way GSUP
so far transmits the IPA SERNO tag when a client attaches to osmo-hlr, happens
to include the terminating nul char.
1 file changed, 14 insertions(+), 7 deletions(-)
git pull ssh://gerrit.osmocom.org:29418/osmo-msc refs/changes/12/13612/4
To view, visit https://gerrit.osmocom.org/13612
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Gerrit-Owner: Neels Hofmeyr <nhofmeyr at sysmocom.de>
Gerrit-Reviewer: Harald Welte <laforge at gnumonks.org>
Gerrit-Reviewer: Jenkins Builder (1000002)
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