netdev - Re: [PATCH] crypto: user - make NETLINK

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Date:   Fri, 26 Jul 2019 22:32:51 +1000
From:   Herbert Xu <herbert@...dor.apana.org.au>
To:     Ondrej Mosnacek <omosnace@...hat.com>
Cc:     linux-crypto@...r.kernel.org, netdev@...r.kernel.org,
        davem@...emloft.net, smueller@...onox.de,
        steffen.klassert@...unet.com, dzickus@...hat.com
Subject: Re: [PATCH] crypto: user - make NETLINK_CRYPTO work inside netns

Ondrej Mosnacek <omosnace@...hat.com> wrote:
> Currently, NETLINK_CRYPTO works only in the init network namespace. It
> doesn't make much sense to cut it out of the other network namespaces,
> so do the minor plumbing work necessary to make it work in any network
> namespace. Code inspired by net/core/sock_diag.c.
> 
> Tested using kcapi-dgst from libkcapi [1]:
> Before:
>    # unshare -n kcapi-dgst -c sha256 </dev/null | wc -c
>    libkcapi - Error: Netlink error: sendmsg failed
>    libkcapi - Error: Netlink error: sendmsg failed
>    libkcapi - Error: NETLINK_CRYPTO: cannot obtain cipher information for hmac(sha512) (is required crypto_user.c patch missing? see documentation)
>    0
> 
> After:
>    # unshare -n kcapi-dgst -c sha256 </dev/null | wc -c
>    32
> 
> [1] https://github.com/smuellerDD/libkcapi
> 
> Signed-off-by: Ondrej Mosnacek <omosnace@...hat.com>
> ---
> crypto/crypto_user_base.c            | 37 +++++++++++++++++++---------
> crypto/crypto_user_stat.c            |  4 ++-
> include/crypto/internal/cryptouser.h |  2 --
> include/net/net_namespace.h          |  3 +++
> 4 files changed, 31 insertions(+), 15 deletions(-)

Patch applied.  Thanks.
-- 
Email: Herbert Xu <herbert@...dor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt