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authorScott Mayhew <smayhew@redhat.com>2019-09-09 16:10:31 -0400
committerJ. Bruce Fields <bfields@redhat.com>2019-09-10 09:26:33 -0400
commit6ee95d1c899186c0798cafd25998d436bcdb9618 (patch)
treebb09ebc1cd0334919aa8245f4fc8b1d486699709 /fs/nfsd/state.h
parent11a60d159259dbadf9188534b508e5003769af61 (diff)
downloadlinux-6ee95d1c899186c0798cafd25998d436bcdb9618.tar.gz
nfsd: add support for upcall version 2
Version 2 upcalls will allow the nfsd to include a hash of the kerberos
principal string in the Cld_Create upcall.  If a principal is present in
the svc_cred, then the hash will be included in the Cld_Create upcall.
We attempt to use the svc_cred.cr_raw_principal (which is returned by
gssproxy) first, and then fall back to using the svc_cred.cr_principal
(which is returned by both gssproxy and rpc.svcgssd).  Upon a subsequent
restart, the hash will be returned in the Cld_Gracestart downcall and
stored in the reclaim_str_hashtbl so it can be used when handling
reclaim opens.

Signed-off-by: Scott Mayhew <smayhew@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'fs/nfsd/state.h')
-rw-r--r--fs/nfsd/state.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/nfsd/state.h b/fs/nfsd/state.h
index d00c86d05beb..46f56afb6cb8 100644
--- a/fs/nfsd/state.h
+++ b/fs/nfsd/state.h
@@ -378,6 +378,7 @@ struct nfs4_client_reclaim {
 	struct list_head	cr_strhash;	/* hash by cr_name */
 	struct nfs4_client	*cr_clp;	/* pointer to associated clp */
 	struct xdr_netobj	cr_name;	/* recovery dir name */
+	struct xdr_netobj	cr_princhash;
 };
 
 /* A reasonable value for REPLAY_ISIZE was estimated as follows:  
@@ -645,7 +646,7 @@ extern void nfsd4_shutdown_callback(struct nfs4_client *);
 extern void nfsd4_shutdown_copy(struct nfs4_client *clp);
 extern void nfsd4_prepare_cb_recall(struct nfs4_delegation *dp);
 extern struct nfs4_client_reclaim *nfs4_client_to_reclaim(struct xdr_netobj name,
-							struct nfsd_net *nn);
+				struct xdr_netobj princhash, struct nfsd_net *nn);
 extern bool nfs4_has_reclaimed_state(struct xdr_netobj name, struct nfsd_net *nn);
 
 struct nfs4_file *find_file(struct knfsd_fh *fh);