netdev - [net-next v3 0/4] tipc: add more features to TIPC encryption

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Message-Id: <20200918011729.30146-1-tuong.t.lien@dektech.com.au>
Date:   Fri, 18 Sep 2020 08:17:25 +0700
From:   Tuong Lien <tuong.t.lien@...tech.com.au>
To:     davem@...emloft.net, jmaloy@...hat.com, maloy@...jonn.com,
        ying.xue@...driver.com, netdev@...r.kernel.org
Cc:     tipc-discussion@...ts.sourceforge.net
Subject: [net-next v3 0/4] tipc: add more features to TIPC encryption

This series adds some new features to TIPC encryption:

- Patch 1 ("tipc: optimize key switching time and logic") optimizes the
code and logic in preparation for the following commits.

- Patch 2 ("tipc: introduce encryption master key") introduces support
of 'master key' for authentication of new nodes and key exchange. A
master key can be set/changed by user via netlink (eg. using the same
'tipc node set key' command in iproute2/tipc).

- Patch 3 ("tipc: add automatic session key exchange") allows a session
key to be securely exchanged between nodes as needed.

- Patch 4 ("tipc: add automatic rekeying for encryption key") adds
automatic 'rekeying' of session keys a specific interval. The new key
will be distributed automatically to peer nodes, so become active then.
The rekeying interval is configurable via netlink as well.

v2: update the "tipc: add automatic session key exchange" patch to fix
"implicit declaration" issue when built without "CONFIG_TIPC_CRYPTO".

v3: update the patches according to David comments by using the
"genl_info->extack" for messages in response to netlink user config
requests.

Tuong Lien (4):
  tipc: optimize key switching time and logic
  tipc: introduce encryption master key
  tipc: add automatic session key exchange
  tipc: add automatic rekeying for encryption key

 include/uapi/linux/tipc.h         |   2 +
 include/uapi/linux/tipc_netlink.h |   2 +
 net/tipc/crypto.c                 | 981 ++++++++++++++++++++++--------
 net/tipc/crypto.h                 |  43 +-
 net/tipc/link.c                   |   5 +
 net/tipc/msg.h                    |   8 +-
 net/tipc/netlink.c                |   2 +
 net/tipc/node.c                   |  94 ++-
 net/tipc/node.h                   |   2 +
 net/tipc/sysctl.c                 |   9 +
 10 files changed, 859 insertions(+), 289 deletions(-)

-- 
2.26.2