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authorBenny Halevy <bhalevy@panasas.com>2009-04-03 08:28:08 +0300
committerJ. Bruce Fields <bfields@citi.umich.edu>2009-04-03 17:41:16 -0700
commitb85d4c01b76f6969a085d07a767fa45225cb14be (patch)
tree5441d0f6bcec52fab3b81ad4887239ff784c5ad9 /include/linux/nfsd
parenta1bcecd29cdf1670df6908a620add4211c0abb7a (diff)
nfsd41: sequence operation
Implement the sequence operation conforming to http://tools.ietf.org/html/draft-ietf-nfsv4-minorversion1-26 Check for stale clientid (as derived from the sessionid). Enforce slotid range and exactly-once semantics using the slotid and seqid. If everything went well renew the client lease and mark the slot INPROGRESS. Add a struct nfsd4_slot pointer to struct nfsd4_compound_state. To be used for sessions DRC replay. [nfsd41: rename sequence catchthis to cachethis] Signed-off-by: Andy Adamson<andros@netapp.com> [pulled some code to set cstate->slot from "nfsd DRC logic"] [use sessionid_lock spin lock] [nfsd41: use bool inuse for slot state] Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfsd: add a struct nfsd4_slot pointer to struct nfsd4_compound_state] Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfsd41: add nfsd4_session pointer to nfsd4_compound_state] [nfsd41: set cstate session] [nfsd41: use cstate session in nfsd4_sequence] Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> [simplify nfsd4_encode_sequence error handling] Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Diffstat (limited to 'include/linux/nfsd')
-rw-r--r--include/linux/nfsd/xdr4.h13
1 files changed, 12 insertions, 1 deletions
diff --git a/include/linux/nfsd/xdr4.h b/include/linux/nfsd/xdr4.h
index 33ee71e988b..6e28a041008 100644
--- a/include/linux/nfsd/xdr4.h
+++ b/include/linux/nfsd/xdr4.h
@@ -48,6 +48,9 @@ struct nfsd4_compound_state {
struct svc_fh current_fh;
struct svc_fh save_fh;
struct nfs4_stateowner *replay_owner;
+ /* For sessions DRC */
+ struct nfsd4_session *session;
+ struct nfsd4_slot *slot;
};
struct nfsd4_change_info {
@@ -358,7 +361,15 @@ struct nfsd4_create_session {
};
struct nfsd4_sequence {
- int foo; /* stub */
+ struct nfs4_sessionid sessionid; /* request/response */
+ u32 seqid; /* request/response */
+ u32 slotid; /* request/response */
+ u32 maxslots; /* request/response */
+ u32 cachethis; /* request */
+#if 0
+ u32 target_maxslots; /* response */
+ u32 status_flags; /* response */
+#endif /* not yet */
};
struct nfsd4_destroy_session {