diff options
| author | J. Bruce Fields <bfields@redhat.com> | 2012-08-16 17:01:21 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-09-14 09:59:25 -0700 |
| commit | 9abbc5a9d54be7dbcc920d079ae790db3520f337 (patch) | |
| tree | e8f94564b225b43943b6e4a2a60880cdf1ae25be /fs | |
| parent | bdd78615ccef0cb43ab4214c9f315efdefedcd6e (diff) | |
nfsd4: fix security flavor of NFSv4.0 callback
commit 39307655a1effa8d913bba054c0e985bfaca808c upstream.
Commit d5497fc693a446ce9100fcf4117c3f795ddfd0d2 "nfsd4: move rq_flavor
into svc_cred" forgot to remove cl_flavor from the client, leaving two
places (cl_flavor and cl_cred.cr_flavor) for the flavor to be stored.
After that patch, the latter was the one that was updated, but the
former was the one that the callback used.
Symptoms were a long delay on utime(). This is because the utime()
generated a setattr which recalled a delegation, but the cb_recall was
ignored by the client because it had the wrong security flavor.
Tested-by: Jamie Heilman <jamie@audible.transient.net>
Reported-by: Jamie Heilman <jamie@audible.transient.net>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/nfsd/nfs4callback.c | 4 | ||||
| -rw-r--r-- | fs/nfsd/state.h | 1 |
2 files changed, 2 insertions, 3 deletions
diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c index a5fd6b982f2..f19145bd8a3 100644 --- a/fs/nfsd/nfs4callback.c +++ b/fs/nfsd/nfs4callback.c @@ -651,12 +651,12 @@ static int setup_callback_client(struct nfs4_client *clp, struct nfs4_cb_conn *c if (clp->cl_minorversion == 0) { if (!clp->cl_cred.cr_principal && - (clp->cl_flavor >= RPC_AUTH_GSS_KRB5)) + (clp->cl_cred.cr_flavor >= RPC_AUTH_GSS_KRB5)) return -EINVAL; args.client_name = clp->cl_cred.cr_principal; args.prognumber = conn->cb_prog, args.protocol = XPRT_TRANSPORT_TCP; - args.authflavor = clp->cl_flavor; + args.authflavor = clp->cl_cred.cr_flavor; clp->cl_cb_ident = conn->cb_ident; } else { if (!conn->cb_xprt) diff --git a/fs/nfsd/state.h b/fs/nfsd/state.h index 849091e16ea..0e220b8d1f5 100644 --- a/fs/nfsd/state.h +++ b/fs/nfsd/state.h @@ -231,7 +231,6 @@ struct nfs4_client { nfs4_verifier cl_verifier; /* generated by client */ time_t cl_time; /* time of last lease renewal */ struct sockaddr_storage cl_addr; /* client ipaddress */ - u32 cl_flavor; /* setclientid pseudoflavor */ struct svc_cred cl_cred; /* setclientid principal */ clientid_t cl_clientid; /* generated by server */ nfs4_verifier cl_confirm; /* generated by server */ |