^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) * Copyright (c) 2001 The Regents of the University of Michigan.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * All rights reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Kendrick Smith <kmsmith@umich.edu>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Andy Adamson <andros@umich.edu>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * Redistribution and use in source and binary forms, with or without
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * modification, are permitted provided that the following conditions
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) * are met:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) * 1. Redistributions of source code must retain the above copyright
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) * notice, this list of conditions and the following disclaimer.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) * 2. Redistributions in binary form must reproduce the above copyright
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) * notice, this list of conditions and the following disclaimer in the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) * documentation and/or other materials provided with the distribution.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) * 3. Neither the name of the University nor the names of its
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) * contributors may be used to endorse or promote products derived
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) * from this software without specific prior written permission.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #ifndef _NFSD4_STATE_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) #define _NFSD4_STATE_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) #include <linux/idr.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) #include <linux/refcount.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) #include <linux/sunrpc/svc_xprt.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) #include "nfsfh.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) #include "nfsd.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) typedef struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) u32 cl_boot;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) u32 cl_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) } clientid_t;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) typedef struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) clientid_t so_clid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) u32 so_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) } stateid_opaque_t;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) typedef struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) u32 si_generation;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) stateid_opaque_t si_opaque;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) } stateid_t;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) typedef struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) stateid_t stid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) #define NFS4_COPY_STID 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) #define NFS4_COPYNOTIFY_STID 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) unsigned char sc_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) refcount_t sc_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) } copy_stateid_t;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) struct nfsd4_callback {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) struct nfs4_client *cb_clp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) struct rpc_message cb_msg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) const struct nfsd4_callback_ops *cb_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) struct work_struct cb_work;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) int cb_seq_status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) int cb_status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) bool cb_need_restart;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) bool cb_holds_slot;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) struct nfsd4_callback_ops {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) void (*prepare)(struct nfsd4_callback *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) int (*done)(struct nfsd4_callback *, struct rpc_task *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) void (*release)(struct nfsd4_callback *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) * A core object that represents a "common" stateid. These are generally
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) * embedded within the different (more specific) stateid objects and contain
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) * fields that are of general use to any stateid.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) struct nfs4_stid {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) refcount_t sc_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) #define NFS4_OPEN_STID 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) #define NFS4_LOCK_STID 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) #define NFS4_DELEG_STID 4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) /* For an open stateid kept around *only* to process close replays: */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) #define NFS4_CLOSED_STID 8
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) /* For a deleg stateid kept around only to process free_stateid's: */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) #define NFS4_REVOKED_DELEG_STID 16
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) #define NFS4_CLOSED_DELEG_STID 32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) #define NFS4_LAYOUT_STID 64
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) struct list_head sc_cp_list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) unsigned char sc_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) stateid_t sc_stateid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) spinlock_t sc_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) struct nfs4_client *sc_client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) struct nfs4_file *sc_file;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) void (*sc_free)(struct nfs4_stid *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) /* Keep a list of stateids issued by the COPY_NOTIFY, associate it with the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) * parent OPEN/LOCK/DELEG stateid.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) struct nfs4_cpntf_state {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) copy_stateid_t cp_stateid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) struct list_head cp_list; /* per parent nfs4_stid */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) stateid_t cp_p_stateid; /* copy of parent's stateid */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) clientid_t cp_p_clid; /* copy of parent's clid */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) time64_t cpntf_time; /* last time stateid used */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) * Represents a delegation stateid. The nfs4_client holds references to these
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) * and they are put when it is being destroyed or when the delegation is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) * returned by the client:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) * o 1 reference as long as a delegation is still in force (taken when it's
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) * alloc'd, put when it's returned or revoked)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) * o 1 reference as long as a recall rpc is in progress (taken when the lease
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) * is broken, put when the rpc exits)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) * o 1 more ephemeral reference for each nfsd thread currently doing something
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) * with that delegation without holding the cl_lock
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) * If the server attempts to recall a delegation and the client doesn't do so
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) * before a timeout, the server may also revoke the delegation. In that case,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) * the object will either be destroyed (v4.0) or moved to a per-client list of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) * revoked delegations (v4.1+).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) * This object is a superset of the nfs4_stid.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) struct nfs4_delegation {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) struct nfs4_stid dl_stid; /* must be first field */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) struct list_head dl_perfile;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) struct list_head dl_perclnt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) struct list_head dl_recall_lru; /* delegation recalled */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) struct nfs4_clnt_odstate *dl_clnt_odstate;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) u32 dl_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) time64_t dl_time;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) /* For recall: */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) int dl_retries;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) struct nfsd4_callback dl_recall;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) #define cb_to_delegation(cb) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) container_of(cb, struct nfs4_delegation, dl_recall)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) /* client delegation callback info */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) struct nfs4_cb_conn {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) /* SETCLIENTID info */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) struct sockaddr_storage cb_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) struct sockaddr_storage cb_saddr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) size_t cb_addrlen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) u32 cb_prog; /* used only in 4.0 case;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) per-session otherwise */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) u32 cb_ident; /* minorversion 0 only */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) struct svc_xprt *cb_xprt; /* minorversion 1 only */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) static inline struct nfs4_delegation *delegstateid(struct nfs4_stid *s)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) return container_of(s, struct nfs4_delegation, dl_stid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) /* Maximum number of slots per session. 160 is useful for long haul TCP */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) #define NFSD_MAX_SLOTS_PER_SESSION 160
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) /* Maximum number of operations per session compound */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) #define NFSD_MAX_OPS_PER_COMPOUND 16
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) /* Maximum session per slot cache size */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) #define NFSD_SLOT_CACHE_SIZE 2048
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) /* Maximum number of NFSD_SLOT_CACHE_SIZE slots per session */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) #define NFSD_CACHE_SIZE_SLOTS_PER_SESSION 32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) #define NFSD_MAX_MEM_PER_SESSION \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) (NFSD_CACHE_SIZE_SLOTS_PER_SESSION * NFSD_SLOT_CACHE_SIZE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) struct nfsd4_slot {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) u32 sl_seqid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) __be32 sl_status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) struct svc_cred sl_cred;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) u32 sl_datalen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) u16 sl_opcnt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) #define NFSD4_SLOT_INUSE (1 << 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) #define NFSD4_SLOT_CACHETHIS (1 << 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) #define NFSD4_SLOT_INITIALIZED (1 << 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) #define NFSD4_SLOT_CACHED (1 << 3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) u8 sl_flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) char sl_data[];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) struct nfsd4_channel_attrs {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) u32 headerpadsz;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) u32 maxreq_sz;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) u32 maxresp_sz;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) u32 maxresp_cached;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) u32 maxops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) u32 maxreqs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) u32 nr_rdma_attrs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) u32 rdma_attrs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) struct nfsd4_cb_sec {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) u32 flavor; /* (u32)(-1) used to mean "no valid flavor" */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) kuid_t uid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) kgid_t gid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) struct nfsd4_create_session {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) clientid_t clientid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) struct nfs4_sessionid sessionid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) u32 seqid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) u32 flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) struct nfsd4_channel_attrs fore_channel;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) struct nfsd4_channel_attrs back_channel;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) u32 callback_prog;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) struct nfsd4_cb_sec cb_sec;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) struct nfsd4_backchannel_ctl {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) u32 bc_cb_program;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) struct nfsd4_cb_sec bc_cb_sec;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) struct nfsd4_bind_conn_to_session {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) struct nfs4_sessionid sessionid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) u32 dir;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) /* The single slot clientid cache structure */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) struct nfsd4_clid_slot {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) u32 sl_seqid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) __be32 sl_status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) struct nfsd4_create_session sl_cr_ses;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) struct nfsd4_conn {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) struct list_head cn_persession;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) struct svc_xprt *cn_xprt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) struct svc_xpt_user cn_xpt_user;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) struct nfsd4_session *cn_session;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) /* CDFC4_FORE, CDFC4_BACK: */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) unsigned char cn_flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) * Representation of a v4.1+ session. These are refcounted in a similar fashion
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) * to the nfs4_client. References are only taken when the server is actively
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) * working on the object (primarily during the processing of compounds).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) struct nfsd4_session {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) atomic_t se_ref;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) struct list_head se_hash; /* hash by sessionid */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) struct list_head se_perclnt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) /* See SESSION4_PERSIST, etc. for standard flags; this is internal-only: */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) #define NFS4_SESSION_DEAD 0x010
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) u32 se_flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) struct nfs4_client *se_client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) struct nfs4_sessionid se_sessionid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) struct nfsd4_channel_attrs se_fchannel;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) struct nfsd4_channel_attrs se_bchannel;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) struct nfsd4_cb_sec se_cb_sec;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) struct list_head se_conns;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) u32 se_cb_prog;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) u32 se_cb_seq_nr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) struct nfsd4_slot *se_slots[]; /* forward channel slots */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) /* formatted contents of nfs4_sessionid */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) struct nfsd4_sessionid {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) clientid_t clientid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) u32 sequence;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) u32 reserved;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) #define HEXDIR_LEN 33 /* hex version of 16 byte md5 of cl_name plus '\0' */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) * struct nfs4_client - one per client. Clientids live here.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) * The initial object created by an NFS client using SETCLIENTID (for NFSv4.0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) * or EXCHANGE_ID (for NFSv4.1+). These objects are refcounted and timestamped.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) * Each nfsd_net_ns object contains a set of these and they are tracked via
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) * short and long form clientid. They are hashed and searched for under the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) * per-nfsd_net client_lock spinlock.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) * References to it are only held during the processing of compounds, and in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) * certain other operations. In their "resting state" they have a refcount of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) * 0. If they are not renewed within a lease period, they become eligible for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) * destruction by the laundromat.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) * These objects can also be destroyed prematurely by the fault injection code,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) * or if the client sends certain forms of SETCLIENTID or EXCHANGE_ID updates.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) * Care is taken *not* to do this however when the objects have an elevated
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) * refcount.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) * o Each nfs4_client is hashed by clientid
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) * o Each nfs4_clients is also hashed by name (the opaque quantity initially
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) * sent by the client to identify itself).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) * o cl_perclient list is used to ensure no dangling stateowner references
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) * when we expire the nfs4_client
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) struct nfs4_client {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) struct list_head cl_idhash; /* hash by cl_clientid.id */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) struct rb_node cl_namenode; /* link into by-name trees */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) struct list_head *cl_ownerstr_hashtbl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) struct list_head cl_openowners;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) struct idr cl_stateids; /* stateid lookup */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) struct list_head cl_delegations;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) struct list_head cl_revoked; /* unacknowledged, revoked 4.1 state */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) struct list_head cl_lru; /* tail queue */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) #ifdef CONFIG_NFSD_PNFS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) struct list_head cl_lo_states; /* outstanding layout states */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) struct xdr_netobj cl_name; /* id generated by client */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) nfs4_verifier cl_verifier; /* generated by client */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) time64_t cl_time; /* time of last lease renewal */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) struct sockaddr_storage cl_addr; /* client ipaddress */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) bool cl_mach_cred; /* SP4_MACH_CRED in force */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) struct svc_cred cl_cred; /* setclientid principal */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) clientid_t cl_clientid; /* generated by server */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) nfs4_verifier cl_confirm; /* generated by server */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) u32 cl_minorversion;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) /* NFSv4.1 client implementation id: */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) struct xdr_netobj cl_nii_domain;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) struct xdr_netobj cl_nii_name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) struct timespec64 cl_nii_time;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) /* for v4.0 and v4.1 callbacks: */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) struct nfs4_cb_conn cl_cb_conn;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) #define NFSD4_CLIENT_CB_UPDATE (0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) #define NFSD4_CLIENT_CB_KILL (1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) #define NFSD4_CLIENT_STABLE (2) /* client on stable storage */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) #define NFSD4_CLIENT_RECLAIM_COMPLETE (3) /* reclaim_complete done */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) #define NFSD4_CLIENT_CONFIRMED (4) /* client is confirmed */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) #define NFSD4_CLIENT_UPCALL_LOCK (5) /* upcall serialization */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) #define NFSD4_CLIENT_CB_FLAG_MASK (1 << NFSD4_CLIENT_CB_UPDATE | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) 1 << NFSD4_CLIENT_CB_KILL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) unsigned long cl_flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) const struct cred *cl_cb_cred;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) struct rpc_clnt *cl_cb_client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) u32 cl_cb_ident;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) #define NFSD4_CB_UP 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) #define NFSD4_CB_UNKNOWN 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) #define NFSD4_CB_DOWN 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) #define NFSD4_CB_FAULT 3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) int cl_cb_state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) struct nfsd4_callback cl_cb_null;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) struct nfsd4_session *cl_cb_session;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) /* for all client information that callback code might need: */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) spinlock_t cl_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) /* for nfs41 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) struct list_head cl_sessions;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) struct nfsd4_clid_slot cl_cs_slot; /* create_session slot */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) u32 cl_exchange_flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) /* number of rpc's in progress over an associated session: */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) atomic_t cl_rpc_users;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) struct nfsdfs_client cl_nfsdfs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) struct nfs4_op_map cl_spo_must_allow;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) /* debugging info directory under nfsd/clients/ : */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) struct dentry *cl_nfsd_dentry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) /* for nfs41 callbacks */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) /* We currently support a single back channel with a single slot */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) unsigned long cl_cb_slot_busy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) struct rpc_wait_queue cl_cb_waitq; /* backchannel callers may */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) /* wait here for slots */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) struct net *net;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) struct list_head async_copies; /* list of async copies */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) spinlock_t async_lock; /* lock for async copies */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) atomic_t cl_cb_inflight; /* Outstanding callbacks */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) /* struct nfs4_client_reset
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) * one per old client. Populates reset_str_hashtbl. Filled from conf_id_hashtbl
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) * upon lease reset, or from upcall to state_daemon (to read in state
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) * from non-volitile storage) upon reboot.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) struct nfs4_client_reclaim {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) struct list_head cr_strhash; /* hash by cr_name */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) struct nfs4_client *cr_clp; /* pointer to associated clp */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) struct xdr_netobj cr_name; /* recovery dir name */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) struct xdr_netobj cr_princhash;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) /* A reasonable value for REPLAY_ISIZE was estimated as follows:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) * The OPEN response, typically the largest, requires
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) * 4(status) + 8(stateid) + 20(changeinfo) + 4(rflags) + 8(verifier) +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) * 4(deleg. type) + 8(deleg. stateid) + 4(deleg. recall flag) +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) * 20(deleg. space limit) + ~32(deleg. ace) = 112 bytes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) #define NFSD4_REPLAY_ISIZE 112
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) * Replay buffer, where the result of the last seqid-mutating operation
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) * is cached.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) struct nfs4_replay {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) __be32 rp_status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) unsigned int rp_buflen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) char *rp_buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) struct knfsd_fh rp_openfh;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) struct mutex rp_mutex;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) char rp_ibuf[NFSD4_REPLAY_ISIZE];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) struct nfs4_stateowner;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) struct nfs4_stateowner_operations {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) void (*so_unhash)(struct nfs4_stateowner *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) void (*so_free)(struct nfs4_stateowner *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) * A core object that represents either an open or lock owner. The object and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) * lock owner objects have one of these embedded within them. Refcounts and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) * other fields common to both owner types are contained within these
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) * structures.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) struct nfs4_stateowner {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) struct list_head so_strhash;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) struct list_head so_stateids;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) struct nfs4_client *so_client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) const struct nfs4_stateowner_operations *so_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) /* after increment in nfsd4_bump_seqid, represents the next
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) * sequence id expected from the client: */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) atomic_t so_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) u32 so_seqid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) struct xdr_netobj so_owner; /* open owner name */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) struct nfs4_replay so_replay;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) bool so_is_open_owner;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) * When a file is opened, the client provides an open state owner opaque string
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) * that indicates the "owner" of that open. These objects are refcounted.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) * References to it are held by each open state associated with it. This object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) * is a superset of the nfs4_stateowner struct.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) struct nfs4_openowner {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) struct nfs4_stateowner oo_owner; /* must be first field */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) struct list_head oo_perclient;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) * We keep around openowners a little while after last close,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) * which saves clients from having to confirm, and allows us to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) * handle close replays if they come soon enough. The close_lru
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) * is a list of such openowners, to be reaped by the laundromat
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) * thread eventually if they remain unused:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) struct list_head oo_close_lru;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) struct nfs4_ol_stateid *oo_last_closed_stid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) time64_t oo_time; /* time of placement on so_close_lru */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) #define NFS4_OO_CONFIRMED 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) unsigned char oo_flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) * Represents a generic "lockowner". Similar to an openowner. References to it
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) * are held by the lock stateids that are created on its behalf. This object is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) * a superset of the nfs4_stateowner struct.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) struct nfs4_lockowner {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) struct nfs4_stateowner lo_owner; /* must be first element */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) struct list_head lo_blocked; /* blocked file_locks */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) static inline struct nfs4_openowner * openowner(struct nfs4_stateowner *so)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) return container_of(so, struct nfs4_openowner, oo_owner);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) static inline struct nfs4_lockowner * lockowner(struct nfs4_stateowner *so)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) return container_of(so, struct nfs4_lockowner, lo_owner);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) * Per-client state indicating no. of opens and outstanding delegations
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) * on a file from a particular client.'od' stands for 'open & delegation'
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) struct nfs4_clnt_odstate {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) struct nfs4_client *co_client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) struct nfs4_file *co_file;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) struct list_head co_perfile;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) refcount_t co_odcount;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) * nfs4_file: a file opened by some number of (open) nfs4_stateowners.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) * These objects are global. nfsd keeps one instance of a nfs4_file per
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) * filehandle (though it may keep multiple file descriptors for each). Each
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) * inode can have multiple filehandles associated with it, so there is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) * (potentially) a many to one relationship between this struct and struct
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) * inode.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) * These are hashed by filehandle in the file_hashtbl, which is protected by
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) * the global state_lock spinlock.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) struct nfs4_file {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) refcount_t fi_ref;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) spinlock_t fi_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) struct hlist_node fi_hash; /* hash on fi_fhandle */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) struct list_head fi_stateids;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) union {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) struct list_head fi_delegations;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) struct rcu_head fi_rcu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) struct list_head fi_clnt_odstate;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) /* One each for O_RDONLY, O_WRONLY, O_RDWR: */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) struct nfsd_file *fi_fds[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) * Each open or lock stateid contributes 0-4 to the counts
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) * below depending on which bits are set in st_access_bitmap:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) * 1 to fi_access[O_RDONLY] if NFS4_SHARE_ACCES_READ is set
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) * + 1 to fi_access[O_WRONLY] if NFS4_SHARE_ACCESS_WRITE is set
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) * + 1 to both of the above if NFS4_SHARE_ACCESS_BOTH is set.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) atomic_t fi_access[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) u32 fi_share_deny;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) struct nfsd_file *fi_deleg_file;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) int fi_delegees;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) struct knfsd_fh fi_fhandle;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) bool fi_had_conflict;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) #ifdef CONFIG_NFSD_PNFS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) struct list_head fi_lo_states;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) atomic_t fi_lo_recalls;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) * A generic struct representing either a open or lock stateid. The nfs4_client
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) * holds a reference to each of these objects, and they in turn hold a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) * reference to their respective stateowners. The client's reference is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) * released in response to a close or unlock (depending on whether it's an open
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) * or lock stateid) or when the client is being destroyed.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) * In the case of v4.0 open stateids, these objects are preserved for a little
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) * while after close in order to handle CLOSE replays. Those are eventually
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) * reclaimed via a LRU scheme by the laundromat.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) * This object is a superset of the nfs4_stid. "ol" stands for "Open or Lock".
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) * Better suggestions welcome.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) struct nfs4_ol_stateid {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) struct nfs4_stid st_stid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) struct list_head st_perfile;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) struct list_head st_perstateowner;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) struct list_head st_locks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) struct nfs4_stateowner *st_stateowner;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) struct nfs4_clnt_odstate *st_clnt_odstate;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) unsigned char st_access_bmap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) unsigned char st_deny_bmap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) struct nfs4_ol_stateid *st_openstp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) struct mutex st_mutex;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) static inline struct nfs4_ol_stateid *openlockstateid(struct nfs4_stid *s)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) return container_of(s, struct nfs4_ol_stateid, st_stid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) struct nfs4_layout_stateid {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) struct nfs4_stid ls_stid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) struct list_head ls_perclnt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) struct list_head ls_perfile;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) spinlock_t ls_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) struct list_head ls_layouts;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) u32 ls_layout_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) struct nfsd_file *ls_file;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) struct nfsd4_callback ls_recall;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) stateid_t ls_recall_sid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) bool ls_recalled;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) struct mutex ls_mutex;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) static inline struct nfs4_layout_stateid *layoutstateid(struct nfs4_stid *s)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) return container_of(s, struct nfs4_layout_stateid, ls_stid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) /* flags for preprocess_seqid_op() */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) #define RD_STATE 0x00000010
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) #define WR_STATE 0x00000020
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) enum nfsd4_cb_op {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) NFSPROC4_CLNT_CB_NULL = 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) NFSPROC4_CLNT_CB_RECALL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) NFSPROC4_CLNT_CB_LAYOUT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) NFSPROC4_CLNT_CB_OFFLOAD,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604) NFSPROC4_CLNT_CB_SEQUENCE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) NFSPROC4_CLNT_CB_NOTIFY_LOCK,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608) /* Returns true iff a is later than b: */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609) static inline bool nfsd4_stateid_generation_after(stateid_t *a, stateid_t *b)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) return (s32)(a->si_generation - b->si_generation) > 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615) * When a client tries to get a lock on a file, we set one of these objects
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616) * on the blocking lock. When the lock becomes free, we can then issue a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617) * CB_NOTIFY_LOCK to the server.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619) struct nfsd4_blocked_lock {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) struct list_head nbl_list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621) struct list_head nbl_lru;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622) time64_t nbl_time;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623) struct file_lock nbl_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624) struct knfsd_fh nbl_fh;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) struct nfsd4_callback nbl_cb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628) struct nfsd4_compound_state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) struct nfsd_net;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) struct nfsd4_copy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632) extern __be32 nfs4_preprocess_stateid_op(struct svc_rqst *rqstp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633) struct nfsd4_compound_state *cstate, struct svc_fh *fhp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634) stateid_t *stateid, int flags, struct nfsd_file **filp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635) struct nfs4_stid **cstid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) __be32 nfsd4_lookup_stateid(struct nfsd4_compound_state *cstate,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637) stateid_t *stateid, unsigned char typemask,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638) struct nfs4_stid **s, struct nfsd_net *nn);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639) struct nfs4_stid *nfs4_alloc_stid(struct nfs4_client *cl, struct kmem_cache *slab,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640) void (*sc_free)(struct nfs4_stid *));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) int nfs4_init_copy_state(struct nfsd_net *nn, struct nfsd4_copy *copy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642) void nfs4_free_copy_state(struct nfsd4_copy *copy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643) struct nfs4_cpntf_state *nfs4_alloc_init_cpntf_state(struct nfsd_net *nn,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644) struct nfs4_stid *p_stid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645) void nfs4_unhash_stid(struct nfs4_stid *s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646) void nfs4_put_stid(struct nfs4_stid *s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647) void nfs4_inc_and_copy_stateid(stateid_t *dst, struct nfs4_stid *stid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) void nfs4_remove_reclaim_record(struct nfs4_client_reclaim *, struct nfsd_net *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649) extern void nfs4_release_reclaim(struct nfsd_net *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650) extern struct nfs4_client_reclaim *nfsd4_find_reclaim_client(struct xdr_netobj name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651) struct nfsd_net *nn);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) extern __be32 nfs4_check_open_reclaim(clientid_t *clid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653) struct nfsd4_compound_state *cstate, struct nfsd_net *nn);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654) extern void nfsd4_probe_callback(struct nfs4_client *clp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655) extern void nfsd4_probe_callback_sync(struct nfs4_client *clp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) extern void nfsd4_change_callback(struct nfs4_client *clp, struct nfs4_cb_conn *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) extern void nfsd4_init_cb(struct nfsd4_callback *cb, struct nfs4_client *clp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658) const struct nfsd4_callback_ops *ops, enum nfsd4_cb_op op);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659) extern void nfsd4_run_cb(struct nfsd4_callback *cb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) extern int nfsd4_create_callback_queue(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661) extern void nfsd4_destroy_callback_queue(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) extern void nfsd4_shutdown_callback(struct nfs4_client *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) extern void nfsd4_shutdown_copy(struct nfs4_client *clp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664) extern void nfsd4_prepare_cb_recall(struct nfs4_delegation *dp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665) extern struct nfs4_client_reclaim *nfs4_client_to_reclaim(struct xdr_netobj name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666) struct xdr_netobj princhash, struct nfsd_net *nn);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667) extern bool nfs4_has_reclaimed_state(struct xdr_netobj name, struct nfsd_net *nn);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669) struct nfs4_file *find_file(struct knfsd_fh *fh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) void put_nfs4_file(struct nfs4_file *fi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671) extern void nfs4_put_copy(struct nfsd4_copy *copy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672) extern struct nfsd4_copy *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) find_async_copy(struct nfs4_client *clp, stateid_t *staetid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674) extern void nfs4_put_cpntf_state(struct nfsd_net *nn,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675) struct nfs4_cpntf_state *cps);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676) extern __be32 manage_cpntf_state(struct nfsd_net *nn, stateid_t *st,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677) struct nfs4_client *clp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) struct nfs4_cpntf_state **cps);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) static inline void get_nfs4_file(struct nfs4_file *fi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681) refcount_inc(&fi->fi_ref);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) struct nfsd_file *find_any_file(struct nfs4_file *f);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685) /* grace period management */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686) void nfsd4_end_grace(struct nfsd_net *nn);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688) /* nfs4recover operations */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689) extern int nfsd4_client_tracking_init(struct net *net);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690) extern void nfsd4_client_tracking_exit(struct net *net);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691) extern void nfsd4_client_record_create(struct nfs4_client *clp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692) extern void nfsd4_client_record_remove(struct nfs4_client *clp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) extern int nfsd4_client_record_check(struct nfs4_client *clp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694) extern void nfsd4_record_grace_done(struct nfsd_net *nn);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696) #endif /* NFSD4_STATE_H */
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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