[0/6] netlink: expose policies to userspace

Message ID	20190426121306.10871-1-johannes@sipsolutions.net
Headers	show Return-Path: <netdev-owner@vger.kernel.org> From: Johannes Berg <johannes@sipsolutions.net> To: netdev@vger.kernel.org Cc: David Ahern <dsa@cumulusnetworks.com>, Pablo Neira Ayuso <pablo@netfilter.org> Subject: [PATCH 0/6] netlink: expose policies to userspace Date: Fri, 26 Apr 2019 14:13:00 +0200 Message-Id: <20190426121306.10871-1-johannes@sipsolutions.net> Sender: netdev-owner@vger.kernel.org Precedence: bulk
Series	netlink: expose policies to userspace \| expand [0/6] netlink: expose policies to userspace [1/6] netlink: remove type-unsafe validation_data pointer [2/6] netlink: extend policy range validation [3/6] netlink: allow NLA_MSECS to have range validation [4/6] netlink: remove NLA_EXACT_LEN_WARN [5/6] netlink: factor out policy range helpers [6/6] netlink: add infrastructure to expose policies to userspace

Message ID

20190426121306.10871-1-johannes@sipsolutions.net

Headers

From: Johannes Berg <johannes@sipsolutions.net>
To: netdev@vger.kernel.org
Cc: David Ahern <dsa@cumulusnetworks.com>,
	Pablo Neira Ayuso <pablo@netfilter.org>
Subject: [PATCH 0/6] netlink: expose policies to userspace
Date: Fri, 26 Apr 2019 14:13:00 +0200
Message-Id: <20190426121306.10871-1-johannes@sipsolutions.net>
Sender: netdev-owner@vger.kernel.org
Precedence: bulk

Series

netlink: expose policies to userspace | expand

Message

Johannes Berg April 26, 2019, 12:13 p.m. UTC

Make some cleanups in policy validation, and add tools to expose
the policies to userspace.

This lets userspace discover what the appropriate data for an
element is.

Note that NLA_UNSPEC items are omitted as they're rejected in
strict validation mode so their policy entries should be changed
to NLA_MIN_LEN - this is just a representation change.

Eventually, I'd like to add a separation between input and output
policies (currently only the input policy is exposed), but that
needs some extra work to add "overrides".

johannes