tree af9546ae7ca32a69c232da8c697ad74cf48b8fe4
parent 3c9068f185dd76d1051e58f1423b4ae612d12ee3
author Holger Hans Peter Freyther <holger@moiji-mobile.com> 1399351530 +0200
committer Holger Hans Peter Freyther <holger@moiji-mobile.com> 1399351839 +0200

nat/bsc: Check proto before calling ipaccess_rcvmsg_base

The code in the BSC/NAT called ipaccess_rcvmsg_base without
checking if the protocol is IPA. This lead the BSC to respond
to SCCP messages with an "ID ACK". From a quick look neither
the code of ipaccess_rcvmsg_base in OpenBSC nor the copy of
libosmo-abis ever checked the protocol header. So this code
has been wrong since initially being created in 2010.