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author | Ilya Dryomov <idryomov@gmail.com> | 2016-12-02 18:35:09 +0300 |
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committer | Ilya Dryomov <idryomov@gmail.com> | 2016-12-13 01:09:21 +0300 |
commit | 5c056fdc5b474329037f2aa18401bd73033e0ce0 (patch) | |
tree | c1ae131badc84a83b8df5746b5ce93bebfc2da39 /net/ceph/auth.c | |
parent | 5418d0a2c859abca2e59d7db36ba477ee4a3ebc6 (diff) | |
download | linux-5c056fdc5b474329037f2aa18401bd73033e0ce0.tar.xz |
libceph: verify authorize reply on connect
After sending an authorizer (ceph_x_authorize_a + ceph_x_authorize_b),
the client gets back a ceph_x_authorize_reply, which it is supposed to
verify to ensure the authenticity and protect against replay attacks.
The code for doing this is there (ceph_x_verify_authorizer_reply(),
ceph_auth_verify_authorizer_reply() + plumbing), but it is never
invoked by the the messenger.
AFAICT this goes back to 2009, when ceph authentication protocols
support was added to the kernel client in 4e7a5dcd1bba ("ceph:
negotiate authentication protocol; implement AUTH_NONE protocol").
The second param of ceph_connection_operations::verify_authorizer_reply
is unused all the way down. Pass 0 to facilitate backporting, and kill
it in the next commit.
Cc: stable@vger.kernel.org
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Sage Weil <sage@redhat.com>
Diffstat (limited to 'net/ceph/auth.c')
0 files changed, 0 insertions, 0 deletions