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authorAlin Nastac <alin.nastac@gmail.com>2019-02-16 10:49:12 +0100
committerPablo Neira Ayuso <pablo@netfilter.org>2019-02-16 10:49:12 +0100
commita3419ce3356cf1fdc69a0524eced84cef730b3bf (patch)
tree457626b48b7d007fd129cf951561f54a6f9bc8b6 /include
parentdddaf89e2fbc69b15e82a96ccd174c70f65bf3d5 (diff)
downloadlinux-a3419ce3356cf1fdc69a0524eced84cef730b3bf.tar.bz2
netfilter: nf_conntrack_sip: add sip_external_media logic
When enabled, the sip_external_media logic will leave SDP payload untouched when it detects that interface towards INVITEd party is the same with the one towards media endpoint. The typical scenario for this logic is when a LAN SIP agent has more than one IP address (uses a different address for media streams than the one used on signalling stream) and it also forwards calls to a voice mailbox located on the WAN side. In such case sip_direct_media must be disabled (so normal calls could be handled by the SIP helper), but media streams that are not traversing this router must also be excluded from address translation (e.g. call forwards). Signed-off-by: Alin Nastac <alin.nastac@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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