[PATCH 0/5] Add namespace awareness to Netlink methods

From: Jonas Bonn
Date: Tue Nov 05 2019 - 03:11:21 EST


Currently, Netlink has partial support for acting outside of the current
namespace. It appears that the intention was to extend this to all the
methods eventually, but it hasn't been done to date.

With this series RTM_SETLINK, RTM_NEWLINK, RTM_NEWADDR, and RTM_NEWNSID
are extended to respect the selection of the namespace to work in.

/Jonas

Jonas Bonn (5):
rtnetlink: allow RTM_SETLINK to reference other namespaces
rtnetlink: skip namespace change if already effect
rtnetlink: allow RTM_NEWLINK to act upon interfaces in arbitrary
namespaces
net: ipv4: allow setting address on interface outside current
namespace
net: namespace: allow setting NSIDs outside current namespace

net/core/net_namespace.c | 19 ++++++++++
net/core/rtnetlink.c | 79 ++++++++++++++++++++++++++++++++++------
net/ipv4/devinet.c | 56 ++++++++++++++++++++--------
3 files changed, 127 insertions(+), 27 deletions(-)

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2.20.1