pespin has posted comments on this change. ( https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/28029 )
Change subject: ggsn: Use larger MSISDN number
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Patch Set 1:
(1 comment)
Patchset:
PS1:
In theory the 2 byte msisdn is fine according to 3GPP TS 29.002 "ISDN-AddressString", since it can range 1..9 bytes.
However wireshark shows errors because it tries to decode it and fails because it is indeed a weird number with 2 digits only (first byte basically states it's an international number, and 2nd byte has the 2 digits). Let's use a more "normal" msisdn length.
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Gerrit-Change-Number: 28029
Gerrit-PatchSet: 1
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lynxis lazus has posted comments on this change. ( https://gerrit.osmocom.org/c/osmo-remsim/+/28027 )
Change subject: server: Detect duplicate client/bankd connection; drop new ones
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Patch Set 2:
(1 comment)
Patchset:
PS2:
even it allows DDoS i would like to drop the old connection.
as long we don't do any authentication I would consider ddos not as part of the design and must taken care otherwise.
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Gerrit-Change-Number: 28027
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Hello Jenkins Builder, lynxis lazus,
I'd like you to reexamine a change. Please visit
https://gerrit.osmocom.org/c/osmo-remsim/+/28027
to look at the new patch set (#2).
Change subject: server: Detect duplicate client/bankd connection; drop new ones
......................................................................
server: Detect duplicate client/bankd connection; drop new ones
we're dropping the current (new) connection as we don't really know which
is the "right" one. Dropping the new gives the old connection time to
timeout, or to continue to operate. If we were to drop the old
connection, this could interrupt a perfectly working connection and opens
some kind of DoS.
Related: OS#5527
Change-Id: I00387dbc19d689415470e2f08df08a47a78b81c0
---
M asn1/RSPRO.asn
M include/osmocom/rspro/ResultCode.h
M src/rspro/ResultCode.c
M src/server/rspro_server.c
4 files changed, 61 insertions(+), 13 deletions(-)
git pull ssh://gerrit.osmocom.org:29418/osmo-remsim refs/changes/27/28027/2
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Gerrit-Change-Number: 28027
Gerrit-PatchSet: 2
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Gerrit-MessageType: newpatchset