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List: linux-crypto-vger
Subject: [PATCH v4 00/17] crypto user configuration api
From: Steffen Klassert <steffen.klassert () secunet ! com>
Date: 2011-09-27 5:20:50
Message-ID: 20110927052050.GB1808 () secunet ! com
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This patchset adds a netlink based user configuration API for the crypto
layer, similar to the configuration API of xfrm.
The patchset is based on the current cryptodev tree.
A userspace tool that makes use of the configuration API is available at
https://sourceforge.net/projects/crconf/files/crconf-pre2.tar.gz
With this it is possible to instantiate certain algorithms by doing
crconf add driver "cbc(aes-generic)" type 4
or
crconf add driver "cbc(aes-generic)" type 4 priority 100
To remove a (form templates build and unused) algorithm with all subsequent
algorithms do
crconf del driver "cbc(aes-generic)" type 4
It is possible to update the priority of an algorithm by doing
crconf update driver "cbc(aes-generic)" type 4 priority 200
this updates the priority of this algorithm and removes all algorithms
on top.
Finally it is possible to print the instantiated crypto algorithms
similar to /proc/crypto by doing
crconf show all
This prints the algorithm informations of all instantiated algorithms
as long as the information fits into a netlink message.
Changes from v1:
- Removed the priority update functions.
- Fix algorithm information printing when build as module.
- Update the crconf tool according to the kernel changes.
Changes from v2:
- Use one structure for creating and basic querying of algorithms.
- Send the algorithm flags to userspace, so the userspace can
check for things like passed selftest, async algorithms etc.
- Update the crconf tool according to the kernel changes.
- Add some priority update functions. We need to be able to update
the priority of algorithms, as we can't delete core algorithms like
aes-generic. When we update the priority of an algorithm, we remove
all algorithms on top.
Changes from v3:
- Remove the priority field from struct crypto_user_alg and use the
existing netlink attribute to send the priority value to userspace.
- Update the crconf tool according to the kernel changes.
- Don't distinguish between netlink attributes that use the same
type value.
Steffen
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