#include <linux/kref.h>
#include <linux/sunrpc/clnt.h>
-#define NFS4_OPAQUE_LIMIT 1024
typedef struct {
u32 cl_boot;
u32 cl_id;
#define si_stateownerid si_opaque.so_stateownerid
#define si_fileid si_opaque.so_fileid
-
-struct nfs4_cb_recall {
- u32 cbr_ident;
- int cbr_trunc;
- stateid_t cbr_stateid;
- struct knfsd_fh cbr_fh;
- struct nfs4_delegation *cbr_dp;
-};
-
struct nfs4_delegation {
struct list_head dl_perfile;
struct list_head dl_perclnt;
struct file *dl_vfs_file;
u32 dl_type;
time_t dl_time;
- struct nfs4_cb_recall dl_recall;
+/* For recall: */
+ u32 dl_ident;
+ stateid_t dl_stateid;
+ struct knfsd_fh dl_fh;
+ int dl_retries;
};
-#define dl_stateid dl_recall.cbr_stateid
-#define dl_fh dl_recall.cbr_fh
-
/* client delegation callback info */
-struct nfs4_callback {
+struct nfs4_cb_conn {
/* SETCLIENTID info */
u32 cb_addr;
unsigned short cb_port;
u32 cb_prog;
- u32 cb_ident;
+ u32 cb_minorversion;
+ u32 cb_ident; /* minorversion 0 only */
/* RPC client info */
atomic_t cb_set; /* successful CB_NULL call */
struct rpc_clnt * cb_client;
+ struct rpc_cred * cb_cred;
+};
+
+/* Maximum number of slots per session. 128 is useful for long haul TCP */
+#define NFSD_MAX_SLOTS_PER_SESSION 128
+/* Maximum number of pages per slot cache entry */
+#define NFSD_PAGES_PER_SLOT 1
+/* Maximum number of operations per session compound */
+#define NFSD_MAX_OPS_PER_COMPOUND 16
+
+struct nfsd4_cache_entry {
+ __be32 ce_status;
+ struct kvec ce_datav; /* encoded NFSv4.1 data in rq_res.head[0] */
+ struct page *ce_respages[NFSD_PAGES_PER_SLOT + 1];
+ int ce_cachethis;
+ short ce_resused;
+ int ce_opcnt;
+ int ce_rpchdrlen;
+};
+
+struct nfsd4_slot {
+ bool sl_inuse;
+ u32 sl_seqid;
+ struct nfsd4_cache_entry sl_cache_entry;
+};
+
+struct nfsd4_channel_attrs {
+ u32 headerpadsz;
+ u32 maxreq_sz;
+ u32 maxresp_sz;
+ u32 maxresp_cached;
+ u32 maxops;
+ u32 maxreqs;
+ u32 nr_rdma_attrs;
+ u32 rdma_attrs;
+};
+
+struct nfsd4_session {
+ struct kref se_ref;
+ struct list_head se_hash; /* hash by sessionid */
+ struct list_head se_perclnt;
+ u32 se_flags;
+ struct nfs4_client *se_client; /* for expire_client */
+ struct nfs4_sessionid se_sessionid;
+ struct nfsd4_channel_attrs se_fchannel;
+ struct nfsd4_channel_attrs se_bchannel;
+ struct nfsd4_slot se_slots[]; /* forward channel slots */
+};
+
+static inline void
+nfsd4_put_session(struct nfsd4_session *ses)
+{
+ extern void free_session(struct kref *kref);
+ kref_put(&ses->se_ref, free_session);
+}
+
+static inline void
+nfsd4_get_session(struct nfsd4_session *ses)
+{
+ kref_get(&ses->se_ref);
+}
+
+/* formatted contents of nfs4_sessionid */
+struct nfsd4_sessionid {
+ clientid_t clientid;
+ u32 sequence;
+ u32 reserved;
};
#define HEXDIR_LEN 33 /* hex version of 16 byte md5 of cl_name plus '\0' */
struct svc_cred cl_cred; /* setclientid principal */
clientid_t cl_clientid; /* generated by server */
nfs4_verifier cl_confirm; /* generated by server */
- struct nfs4_callback cl_callback; /* callback info */
+ struct nfs4_cb_conn cl_cb_conn; /* callback info */
atomic_t cl_count; /* ref count */
u32 cl_firststate; /* recovery dir creation */
+
+ /* for nfs41 */
+ struct list_head cl_sessions;
+ struct nfsd4_slot cl_slot; /* create_session slot */
+ u32 cl_exchange_flags;
+ struct nfs4_sessionid cl_sessionid;
};
/* struct nfs4_client_reset
* share_acces, share_deny on the file.
*/
struct nfs4_file {
- struct kref fi_ref;
+ atomic_t fi_ref;
struct list_head fi_hash; /* hash by "struct inode *" */
struct list_head fi_stateids;
struct list_head fi_delegations;
};
/* flags for preprocess_seqid_op() */
-#define CHECK_FH 0x00000001
+#define HAS_SESSION 0x00000001
#define CONFIRM 0x00000002
#define OPEN_STATE 0x00000004
#define LOCK_STATE 0x00000008
#define RD_STATE 0x00000010
#define WR_STATE 0x00000020
#define CLOSE_STATE 0x00000040
-#define DELEG_RET 0x00000080
#define seqid_mutating_err(err) \
(((err) != nfserr_stale_clientid) && \
((err) != nfserr_stale_stateid) && \
((err) != nfserr_bad_stateid))
-extern __be32 nfs4_preprocess_stateid_op(struct svc_fh *current_fh,
+struct nfsd4_compound_state;
+
+extern __be32 nfs4_preprocess_stateid_op(struct nfsd4_compound_state *cstate,
stateid_t *stateid, int flags, struct file **filp);
extern void nfs4_lock_state(void);
extern void nfs4_unlock_state(void);
extern int nfsd4_recdir_load(void);
extern void nfsd4_shutdown_recdir(void);
extern int nfs4_client_to_reclaim(const char *name);
-extern int nfs4_has_reclaimed_state(const char *name);
+extern int nfs4_has_reclaimed_state(const char *name, bool use_exchange_id);
extern void nfsd4_recdir_purge_old(void);
extern int nfsd4_create_clid_dir(struct nfs4_client *clp);
extern void nfsd4_remove_clid_dir(struct nfs4_client *clp);