netdev - Re: [PATCH net-next 0/3] vsock: support network namespace

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Date:   Tue, 21 Jan 2020 15:50:53 +0000
From:   Stefan Hajnoczi <stefanha@...hat.com>
To:     Stefano Garzarella <sgarzare@...hat.com>
Cc:     davem@...emloft.net, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, Jorgen Hansen <jhansen@...are.com>,
        Jason Wang <jasowang@...hat.com>, kvm@...r.kernel.org,
        virtualization@...ts.linux-foundation.org,
        linux-hyperv@...r.kernel.org,
        "Michael S. Tsirkin" <mst@...hat.com>,
        Dexuan Cui <decui@...rosoft.com>
Subject: Re: [PATCH net-next 0/3] vsock: support network namespace

What should vsock_dev_do_ioctl() IOCTL_VM_SOCKETS_GET_LOCAL_CID return?
The answer is probably dependent on the caller's network namespace.

Ultimately we may need per-namespace transports.  Imagine assigning a
G2H transport to a specific network namespace.

vsock_stream_connect() needs to be namespace-aware so that other
namespaces cannot use the G2H transport to send a connection
establishment packet.

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