2 * Copyright (C) 2006 Red Hat, Inc. All Rights Reserved.
3 * Written by David Howells (dhowells@redhat.com)
5 #include <linux/module.h>
6 #include <linux/nfs_fs.h>
7 #include <linux/nfs_idmap.h>
8 #include <linux/nfs_mount.h>
9 #include <linux/sunrpc/addr.h>
10 #include <linux/sunrpc/auth.h>
11 #include <linux/sunrpc/xprt.h>
12 #include <linux/sunrpc/bc_xprt.h>
15 #include "delegation.h"
16 #include "nfs4session.h"
20 #define NFSDBG_FACILITY NFSDBG_CLIENT
23 * Get a unique NFSv4.0 callback identifier which will be used
24 * by the V4.0 callback service to lookup the nfs_client struct
26 static int nfs_get_cb_ident_idr(struct nfs_client
*clp
, int minorversion
)
29 struct nfs_net
*nn
= net_generic(clp
->cl_net
, nfs_net_id
);
31 if (clp
->rpc_ops
->version
!= 4 || minorversion
!= 0)
33 idr_preload(GFP_KERNEL
);
34 spin_lock(&nn
->nfs_client_lock
);
35 ret
= idr_alloc(&nn
->cb_ident_idr
, clp
, 0, 0, GFP_NOWAIT
);
37 clp
->cl_cb_ident
= ret
;
38 spin_unlock(&nn
->nfs_client_lock
);
40 return ret
< 0 ? ret
: 0;
43 #ifdef CONFIG_NFS_V4_1
44 static void nfs4_shutdown_session(struct nfs_client
*clp
)
46 if (nfs4_has_session(clp
)) {
47 nfs4_destroy_session(clp
->cl_session
);
48 nfs4_destroy_clientid(clp
);
52 #else /* CONFIG_NFS_V4_1 */
53 static void nfs4_shutdown_session(struct nfs_client
*clp
)
56 #endif /* CONFIG_NFS_V4_1 */
58 struct nfs_client
*nfs4_alloc_client(const struct nfs_client_initdata
*cl_init
)
61 struct nfs_client
*clp
= nfs_alloc_client(cl_init
);
65 err
= nfs_get_cb_ident_idr(clp
, cl_init
->minorversion
);
69 spin_lock_init(&clp
->cl_lock
);
70 INIT_DELAYED_WORK(&clp
->cl_renewd
, nfs4_renew_state
);
71 rpc_init_wait_queue(&clp
->cl_rpcwaitq
, "NFS client");
72 clp
->cl_state
= 1 << NFS4CLNT_LEASE_EXPIRED
;
73 clp
->cl_minorversion
= cl_init
->minorversion
;
74 clp
->cl_mvops
= nfs_v4_minor_ops
[cl_init
->minorversion
];
83 * Destroy the NFS4 callback service
85 static void nfs4_destroy_callback(struct nfs_client
*clp
)
87 if (__test_and_clear_bit(NFS_CS_CALLBACK
, &clp
->cl_res_state
))
88 nfs_callback_down(clp
->cl_mvops
->minor_version
, clp
->cl_net
);
91 static void nfs4_shutdown_client(struct nfs_client
*clp
)
93 if (__test_and_clear_bit(NFS_CS_RENEWD
, &clp
->cl_res_state
))
94 nfs4_kill_renewd(clp
);
95 nfs4_shutdown_session(clp
);
96 nfs4_destroy_callback(clp
);
97 if (__test_and_clear_bit(NFS_CS_IDMAP
, &clp
->cl_res_state
))
98 nfs_idmap_delete(clp
);
100 rpc_destroy_wait_queue(&clp
->cl_rpcwaitq
);
101 kfree(clp
->cl_serverowner
);
102 kfree(clp
->cl_serverscope
);
103 kfree(clp
->cl_implid
);
106 void nfs4_free_client(struct nfs_client
*clp
)
108 nfs4_shutdown_client(clp
);
109 nfs_free_client(clp
);
113 * Initialize the NFS4 callback service
115 static int nfs4_init_callback(struct nfs_client
*clp
)
119 if (clp
->rpc_ops
->version
== 4) {
120 struct rpc_xprt
*xprt
;
122 xprt
= rcu_dereference_raw(clp
->cl_rpcclient
->cl_xprt
);
124 if (nfs4_has_session(clp
)) {
125 error
= xprt_setup_backchannel(xprt
,
126 NFS41_BC_MIN_CALLBACKS
);
131 error
= nfs_callback_up(clp
->cl_mvops
->minor_version
, xprt
);
133 dprintk("%s: failed to start callback. Error = %d\n",
137 __set_bit(NFS_CS_CALLBACK
, &clp
->cl_res_state
);
143 * Initialize the minor version specific parts of an NFS4 client record
145 static int nfs4_init_client_minor_version(struct nfs_client
*clp
)
147 #if defined(CONFIG_NFS_V4_1)
148 if (clp
->cl_mvops
->minor_version
) {
149 struct nfs4_session
*session
= NULL
;
151 * Create the session and mark it expired.
152 * When a SEQUENCE operation encounters the expired session
153 * it will do session recovery to initialize it.
155 session
= nfs4_alloc_session(clp
);
159 clp
->cl_session
= session
;
161 * The create session reply races with the server back
162 * channel probe. Mark the client NFS_CS_SESSION_INITING
163 * so that the client back channel can find the
166 nfs_mark_client_ready(clp
, NFS_CS_SESSION_INITING
);
168 #endif /* CONFIG_NFS_V4_1 */
170 return nfs4_init_callback(clp
);
174 * nfs4_init_client - Initialise an NFS4 client record
176 * @clp: nfs_client to initialise
177 * @timeparms: timeout parameters for underlying RPC transport
178 * @ip_addr: callback IP address in presentation format
179 * @authflavor: authentication flavor for underlying RPC transport
181 * Returns pointer to an NFS client, or an ERR_PTR value.
183 struct nfs_client
*nfs4_init_client(struct nfs_client
*clp
,
184 const struct rpc_timeout
*timeparms
,
186 rpc_authflavor_t authflavour
)
188 char buf
[INET6_ADDRSTRLEN
+ 1];
189 struct nfs_client
*old
;
192 if (clp
->cl_cons_state
== NFS_CS_READY
) {
193 /* the client is initialised already */
194 dprintk("<-- nfs4_init_client() = 0 [already %p]\n", clp
);
198 /* Check NFS protocol revision and initialize RPC op vector */
199 clp
->rpc_ops
= &nfs_v4_clientops
;
201 if (clp
->cl_minorversion
!= 0)
202 __set_bit(NFS_CS_INFINITE_SLOTS
, &clp
->cl_flags
);
203 __set_bit(NFS_CS_DISCRTRY
, &clp
->cl_flags
);
204 error
= nfs_create_rpc_client(clp
, timeparms
, RPC_AUTH_GSS_KRB5I
);
205 if (error
== -EINVAL
)
206 error
= nfs_create_rpc_client(clp
, timeparms
, RPC_AUTH_UNIX
);
210 /* If no clientaddr= option was specified, find a usable cb address */
211 if (ip_addr
== NULL
) {
212 struct sockaddr_storage cb_addr
;
213 struct sockaddr
*sap
= (struct sockaddr
*)&cb_addr
;
215 error
= rpc_localaddr(clp
->cl_rpcclient
, sap
, sizeof(cb_addr
));
218 error
= rpc_ntop(sap
, buf
, sizeof(buf
));
221 ip_addr
= (const char *)buf
;
223 strlcpy(clp
->cl_ipaddr
, ip_addr
, sizeof(clp
->cl_ipaddr
));
225 error
= nfs_idmap_new(clp
);
227 dprintk("%s: failed to create idmapper. Error = %d\n",
231 __set_bit(NFS_CS_IDMAP
, &clp
->cl_res_state
);
233 error
= nfs4_init_client_minor_version(clp
);
237 if (!nfs4_has_session(clp
))
238 nfs_mark_client_ready(clp
, NFS_CS_READY
);
240 error
= nfs4_discover_server_trunking(clp
, &old
);
245 clp
->cl_preserve_clid
= true;
252 nfs_mark_client_ready(clp
, error
);
254 dprintk("<-- nfs4_init_client() = xerror %d\n", error
);
255 return ERR_PTR(error
);
259 * SETCLIENTID just did a callback update with the callback ident in
260 * "drop," but server trunking discovery claims "drop" and "keep" are
261 * actually the same server. Swap the callback IDs so that "keep"
262 * will continue to use the callback ident the server now knows about,
263 * and so that "keep"'s original callback ident is destroyed when
266 static void nfs4_swap_callback_idents(struct nfs_client
*keep
,
267 struct nfs_client
*drop
)
269 struct nfs_net
*nn
= net_generic(keep
->cl_net
, nfs_net_id
);
270 unsigned int save
= keep
->cl_cb_ident
;
272 if (keep
->cl_cb_ident
== drop
->cl_cb_ident
)
275 dprintk("%s: keeping callback ident %u and dropping ident %u\n",
276 __func__
, keep
->cl_cb_ident
, drop
->cl_cb_ident
);
278 spin_lock(&nn
->nfs_client_lock
);
280 idr_replace(&nn
->cb_ident_idr
, keep
, drop
->cl_cb_ident
);
281 keep
->cl_cb_ident
= drop
->cl_cb_ident
;
283 idr_replace(&nn
->cb_ident_idr
, drop
, save
);
284 drop
->cl_cb_ident
= save
;
286 spin_unlock(&nn
->nfs_client_lock
);
290 * nfs40_walk_client_list - Find server that recognizes a client ID
292 * @new: nfs_client with client ID to test
293 * @result: OUT: found nfs_client, or new
294 * @cred: credential to use for trunking test
296 * Returns zero, a negative errno, or a negative NFS4ERR status.
297 * If zero is returned, an nfs_client pointer is planted in "result."
299 * NB: nfs40_walk_client_list() relies on the new nfs_client being
300 * the last nfs_client on the list.
302 int nfs40_walk_client_list(struct nfs_client
*new,
303 struct nfs_client
**result
,
304 struct rpc_cred
*cred
)
306 struct nfs_net
*nn
= net_generic(new->cl_net
, nfs_net_id
);
307 struct nfs_client
*pos
, *prev
= NULL
;
308 struct nfs4_setclientid_res clid
= {
309 .clientid
= new->cl_clientid
,
310 .confirm
= new->cl_confirm
,
312 int status
= -NFS4ERR_STALE_CLIENTID
;
314 spin_lock(&nn
->nfs_client_lock
);
315 list_for_each_entry(pos
, &nn
->nfs_client_list
, cl_share_link
) {
316 /* If "pos" isn't marked ready, we can't trust the
317 * remaining fields in "pos" */
318 if (pos
->cl_cons_state
> NFS_CS_READY
) {
319 atomic_inc(&pos
->cl_count
);
320 spin_unlock(&nn
->nfs_client_lock
);
323 nfs_put_client(prev
);
326 status
= nfs_wait_client_init_complete(pos
);
327 spin_lock(&nn
->nfs_client_lock
);
331 if (pos
->cl_cons_state
!= NFS_CS_READY
)
334 if (pos
->rpc_ops
!= new->rpc_ops
)
337 if (pos
->cl_proto
!= new->cl_proto
)
340 if (pos
->cl_minorversion
!= new->cl_minorversion
)
343 if (pos
->cl_clientid
!= new->cl_clientid
)
346 atomic_inc(&pos
->cl_count
);
347 spin_unlock(&nn
->nfs_client_lock
);
350 nfs_put_client(prev
);
353 status
= nfs4_proc_setclientid_confirm(pos
, &clid
, cred
);
355 case -NFS4ERR_STALE_CLIENTID
:
358 nfs4_swap_callback_idents(pos
, new);
362 dprintk("NFS: <-- %s using nfs_client = %p ({%d})\n",
363 __func__
, pos
, atomic_read(&pos
->cl_count
));
368 spin_lock(&nn
->nfs_client_lock
);
370 spin_unlock(&nn
->nfs_client_lock
);
372 /* No match found. The server lost our clientid */
375 nfs_put_client(prev
);
376 dprintk("NFS: <-- %s status = %d\n", __func__
, status
);
380 #ifdef CONFIG_NFS_V4_1
382 * Returns true if the client IDs match
384 static bool nfs4_match_clientids(struct nfs_client
*a
, struct nfs_client
*b
)
386 if (a
->cl_clientid
!= b
->cl_clientid
) {
387 dprintk("NFS: --> %s client ID %llx does not match %llx\n",
388 __func__
, a
->cl_clientid
, b
->cl_clientid
);
391 dprintk("NFS: --> %s client ID %llx matches %llx\n",
392 __func__
, a
->cl_clientid
, b
->cl_clientid
);
397 * Returns true if the server owners match
400 nfs4_match_serverowners(struct nfs_client
*a
, struct nfs_client
*b
)
402 struct nfs41_server_owner
*o1
= a
->cl_serverowner
;
403 struct nfs41_server_owner
*o2
= b
->cl_serverowner
;
405 if (o1
->minor_id
!= o2
->minor_id
) {
406 dprintk("NFS: --> %s server owner minor IDs do not match\n",
411 if (o1
->major_id_sz
!= o2
->major_id_sz
)
412 goto out_major_mismatch
;
413 if (memcmp(o1
->major_id
, o2
->major_id
, o1
->major_id_sz
) != 0)
414 goto out_major_mismatch
;
416 dprintk("NFS: --> %s server owners match\n", __func__
);
420 dprintk("NFS: --> %s server owner major IDs do not match\n",
426 * nfs41_walk_client_list - Find nfs_client that matches a client/server owner
428 * @new: nfs_client with client ID to test
429 * @result: OUT: found nfs_client, or new
430 * @cred: credential to use for trunking test
432 * Returns zero, a negative errno, or a negative NFS4ERR status.
433 * If zero is returned, an nfs_client pointer is planted in "result."
435 * NB: nfs41_walk_client_list() relies on the new nfs_client being
436 * the last nfs_client on the list.
438 int nfs41_walk_client_list(struct nfs_client
*new,
439 struct nfs_client
**result
,
440 struct rpc_cred
*cred
)
442 struct nfs_net
*nn
= net_generic(new->cl_net
, nfs_net_id
);
443 struct nfs_client
*pos
, *prev
= NULL
;
444 int status
= -NFS4ERR_STALE_CLIENTID
;
446 spin_lock(&nn
->nfs_client_lock
);
447 list_for_each_entry(pos
, &nn
->nfs_client_list
, cl_share_link
) {
448 /* If "pos" isn't marked ready, we can't trust the
449 * remaining fields in "pos", especially the client
450 * ID and serverowner fields. Wait for CREATE_SESSION
452 if (pos
->cl_cons_state
> NFS_CS_READY
) {
453 atomic_inc(&pos
->cl_count
);
454 spin_unlock(&nn
->nfs_client_lock
);
457 nfs_put_client(prev
);
460 status
= nfs_wait_client_init_complete(pos
);
462 nfs4_schedule_lease_recovery(pos
);
463 status
= nfs4_wait_clnt_recover(pos
);
465 spin_lock(&nn
->nfs_client_lock
);
469 if (pos
->cl_cons_state
!= NFS_CS_READY
)
472 if (pos
->rpc_ops
!= new->rpc_ops
)
475 if (pos
->cl_proto
!= new->cl_proto
)
478 if (pos
->cl_minorversion
!= new->cl_minorversion
)
481 if (!nfs4_match_clientids(pos
, new))
484 if (!nfs4_match_serverowners(pos
, new))
487 atomic_inc(&pos
->cl_count
);
490 dprintk("NFS: <-- %s using nfs_client = %p ({%d})\n",
491 __func__
, pos
, atomic_read(&pos
->cl_count
));
495 /* No matching nfs_client found. */
496 spin_unlock(&nn
->nfs_client_lock
);
497 dprintk("NFS: <-- %s status = %d\n", __func__
, status
);
499 nfs_put_client(prev
);
502 #endif /* CONFIG_NFS_V4_1 */
504 static void nfs4_destroy_server(struct nfs_server
*server
)
506 nfs_server_return_all_delegations(server
);
507 unset_pnfs_layoutdriver(server
);
508 nfs4_purge_state_owners(server
);
512 * NFSv4.0 callback thread helper
514 * Find a client by callback identifier
517 nfs4_find_client_ident(struct net
*net
, int cb_ident
)
519 struct nfs_client
*clp
;
520 struct nfs_net
*nn
= net_generic(net
, nfs_net_id
);
522 spin_lock(&nn
->nfs_client_lock
);
523 clp
= idr_find(&nn
->cb_ident_idr
, cb_ident
);
525 atomic_inc(&clp
->cl_count
);
526 spin_unlock(&nn
->nfs_client_lock
);
530 #if defined(CONFIG_NFS_V4_1)
531 /* Common match routine for v4.0 and v4.1 callback services */
532 static bool nfs4_cb_match_client(const struct sockaddr
*addr
,
533 struct nfs_client
*clp
, u32 minorversion
)
535 struct sockaddr
*clap
= (struct sockaddr
*)&clp
->cl_addr
;
537 /* Don't match clients that failed to initialise */
538 if (!(clp
->cl_cons_state
== NFS_CS_READY
||
539 clp
->cl_cons_state
== NFS_CS_SESSION_INITING
))
544 /* Match the version and minorversion */
545 if (clp
->rpc_ops
->version
!= 4 ||
546 clp
->cl_minorversion
!= minorversion
)
549 /* Match only the IP address, not the port number */
550 if (!nfs_sockaddr_match_ipaddr(addr
, clap
))
557 * NFSv4.1 callback thread helper
558 * For CB_COMPOUND calls, find a client by IP address, protocol version,
559 * minorversion, and sessionID
561 * Returns NULL if no such client
564 nfs4_find_client_sessionid(struct net
*net
, const struct sockaddr
*addr
,
565 struct nfs4_sessionid
*sid
)
567 struct nfs_client
*clp
;
568 struct nfs_net
*nn
= net_generic(net
, nfs_net_id
);
570 spin_lock(&nn
->nfs_client_lock
);
571 list_for_each_entry(clp
, &nn
->nfs_client_list
, cl_share_link
) {
572 if (nfs4_cb_match_client(addr
, clp
, 1) == false)
575 if (!nfs4_has_session(clp
))
579 if (memcmp(clp
->cl_session
->sess_id
.data
,
580 sid
->data
, NFS4_MAX_SESSIONID_LEN
) != 0)
583 atomic_inc(&clp
->cl_count
);
584 spin_unlock(&nn
->nfs_client_lock
);
587 spin_unlock(&nn
->nfs_client_lock
);
591 #else /* CONFIG_NFS_V4_1 */
594 nfs4_find_client_sessionid(struct net
*net
, const struct sockaddr
*addr
,
595 struct nfs4_sessionid
*sid
)
599 #endif /* CONFIG_NFS_V4_1 */
602 * Set up an NFS4 client
604 static int nfs4_set_client(struct nfs_server
*server
,
605 const char *hostname
,
606 const struct sockaddr
*addr
,
607 const size_t addrlen
,
609 rpc_authflavor_t authflavour
,
610 int proto
, const struct rpc_timeout
*timeparms
,
611 u32 minorversion
, struct net
*net
)
613 struct nfs_client_initdata cl_init
= {
614 .hostname
= hostname
,
619 .minorversion
= minorversion
,
622 struct nfs_client
*clp
;
625 dprintk("--> nfs4_set_client()\n");
627 if (server
->flags
& NFS_MOUNT_NORESVPORT
)
628 set_bit(NFS_CS_NORESVPORT
, &cl_init
.init_flags
);
630 /* Allocate or find a client reference we can use */
631 clp
= nfs_get_client(&cl_init
, timeparms
, ip_addr
, authflavour
);
633 error
= PTR_ERR(clp
);
638 * Query for the lease time on clientid setup or renewal
640 * Note that this will be set on nfs_clients that were created
641 * only for the DS role and did not set this bit, but now will
644 set_bit(NFS_CS_CHECK_LEASE_TIME
, &clp
->cl_res_state
);
646 server
->nfs_client
= clp
;
647 dprintk("<-- nfs4_set_client() = 0 [new %p]\n", clp
);
650 dprintk("<-- nfs4_set_client() = xerror %d\n", error
);
655 * Set up a pNFS Data Server client.
657 * Return any existing nfs_client that matches server address,port,version
660 * For a new nfs_client, use a soft mount (default), a low retrans and a
661 * low timeout interval so that if a connection is lost, we retry through
664 struct nfs_client
*nfs4_set_ds_client(struct nfs_client
* mds_clp
,
665 const struct sockaddr
*ds_addr
, int ds_addrlen
,
666 int ds_proto
, unsigned int ds_timeo
, unsigned int ds_retrans
)
668 struct nfs_client_initdata cl_init
= {
670 .addrlen
= ds_addrlen
,
673 .minorversion
= mds_clp
->cl_minorversion
,
674 .net
= mds_clp
->cl_net
,
676 struct rpc_timeout ds_timeout
;
677 struct nfs_client
*clp
;
680 * Set an authflavor equual to the MDS value. Use the MDS nfs_client
681 * cl_ipaddr so as to use the same EXCHANGE_ID co_ownerid as the MDS
682 * (section 13.1 RFC 5661).
684 nfs_init_timeout_values(&ds_timeout
, ds_proto
, ds_timeo
, ds_retrans
);
685 clp
= nfs_get_client(&cl_init
, &ds_timeout
, mds_clp
->cl_ipaddr
,
686 mds_clp
->cl_rpcclient
->cl_auth
->au_flavor
);
688 dprintk("<-- %s %p\n", __func__
, clp
);
691 EXPORT_SYMBOL_GPL(nfs4_set_ds_client
);
694 * Session has been established, and the client marked ready.
695 * Set the mount rsize and wsize with negotiated fore channel
696 * attributes which will be bound checked in nfs_server_set_fsinfo.
698 static void nfs4_session_set_rwsize(struct nfs_server
*server
)
700 #ifdef CONFIG_NFS_V4_1
701 struct nfs4_session
*sess
;
705 if (!nfs4_has_session(server
->nfs_client
))
707 sess
= server
->nfs_client
->cl_session
;
708 server_resp_sz
= sess
->fc_attrs
.max_resp_sz
- nfs41_maxread_overhead
;
709 server_rqst_sz
= sess
->fc_attrs
.max_rqst_sz
- nfs41_maxwrite_overhead
;
711 if (server
->rsize
> server_resp_sz
)
712 server
->rsize
= server_resp_sz
;
713 if (server
->wsize
> server_rqst_sz
)
714 server
->wsize
= server_rqst_sz
;
715 #endif /* CONFIG_NFS_V4_1 */
718 static int nfs4_server_common_setup(struct nfs_server
*server
,
719 struct nfs_fh
*mntfh
)
721 struct nfs_fattr
*fattr
;
724 /* data servers support only a subset of NFSv4.1 */
725 if (is_ds_only_client(server
->nfs_client
))
726 return -EPROTONOSUPPORT
;
728 fattr
= nfs_alloc_fattr();
732 /* We must ensure the session is initialised first */
733 error
= nfs4_init_session(server
);
737 /* Set the basic capabilities */
738 server
->caps
|= server
->nfs_client
->cl_mvops
->init_caps
;
739 if (server
->flags
& NFS_MOUNT_NORDIRPLUS
)
740 server
->caps
&= ~NFS_CAP_READDIRPLUS
;
742 * Don't use NFS uid/gid mapping if we're using AUTH_SYS or lower
745 if (nfs4_disable_idmapping
&&
746 server
->client
->cl_auth
->au_flavor
== RPC_AUTH_UNIX
)
747 server
->caps
|= NFS_CAP_UIDGID_NOMAP
;
750 /* Probe the root fh to retrieve its FSID and filehandle */
751 error
= nfs4_get_rootfh(server
, mntfh
);
755 dprintk("Server FSID: %llx:%llx\n",
756 (unsigned long long) server
->fsid
.major
,
757 (unsigned long long) server
->fsid
.minor
);
758 dprintk("Mount FH: %d\n", mntfh
->size
);
760 nfs4_session_set_rwsize(server
);
762 error
= nfs_probe_fsinfo(server
, mntfh
, fattr
);
766 if (server
->namelen
== 0 || server
->namelen
> NFS4_MAXNAMLEN
)
767 server
->namelen
= NFS4_MAXNAMLEN
;
769 nfs_server_insert_lists(server
);
770 server
->mount_time
= jiffies
;
771 server
->destroy
= nfs4_destroy_server
;
773 nfs_free_fattr(fattr
);
778 * Create a version 4 volume record
780 static int nfs4_init_server(struct nfs_server
*server
,
781 const struct nfs_parsed_mount_data
*data
)
783 struct rpc_timeout timeparms
;
786 dprintk("--> nfs4_init_server()\n");
788 nfs_init_timeout_values(&timeparms
, data
->nfs_server
.protocol
,
789 data
->timeo
, data
->retrans
);
791 /* Initialise the client representation from the mount data */
792 server
->flags
= data
->flags
;
793 server
->options
= data
->options
;
795 /* Get a client record */
796 error
= nfs4_set_client(server
,
797 data
->nfs_server
.hostname
,
798 (const struct sockaddr
*)&data
->nfs_server
.address
,
799 data
->nfs_server
.addrlen
,
800 data
->client_address
,
801 data
->auth_flavors
[0],
802 data
->nfs_server
.protocol
,
810 server
->rsize
= nfs_block_size(data
->rsize
, NULL
);
812 server
->wsize
= nfs_block_size(data
->wsize
, NULL
);
814 server
->acregmin
= data
->acregmin
* HZ
;
815 server
->acregmax
= data
->acregmax
* HZ
;
816 server
->acdirmin
= data
->acdirmin
* HZ
;
817 server
->acdirmax
= data
->acdirmax
* HZ
;
819 server
->port
= data
->nfs_server
.port
;
821 error
= nfs_init_server_rpcclient(server
, &timeparms
, data
->auth_flavors
[0]);
825 dprintk("<-- nfs4_init_server() = %d\n", error
);
830 * Create a version 4 volume record
831 * - keyed on server and FSID
833 /*struct nfs_server *nfs4_create_server(const struct nfs_parsed_mount_data *data,
834 struct nfs_fh *mntfh)*/
835 struct nfs_server
*nfs4_create_server(struct nfs_mount_info
*mount_info
,
836 struct nfs_subversion
*nfs_mod
)
838 struct nfs_server
*server
;
841 dprintk("--> nfs4_create_server()\n");
843 server
= nfs_alloc_server();
845 return ERR_PTR(-ENOMEM
);
847 /* set up the general RPC client */
848 error
= nfs4_init_server(server
, mount_info
->parsed
);
852 error
= nfs4_server_common_setup(server
, mount_info
->mntfh
);
856 dprintk("<-- nfs4_create_server() = %p\n", server
);
860 nfs_free_server(server
);
861 dprintk("<-- nfs4_create_server() = error %d\n", error
);
862 return ERR_PTR(error
);
866 * Create an NFS4 referral server record
868 struct nfs_server
*nfs4_create_referral_server(struct nfs_clone_mount
*data
,
869 struct nfs_fh
*mntfh
)
871 struct nfs_client
*parent_client
;
872 struct nfs_server
*server
, *parent_server
;
875 dprintk("--> nfs4_create_referral_server()\n");
877 server
= nfs_alloc_server();
879 return ERR_PTR(-ENOMEM
);
881 parent_server
= NFS_SB(data
->sb
);
882 parent_client
= parent_server
->nfs_client
;
884 /* Initialise the client representation from the parent server */
885 nfs_server_copy_userdata(server
, parent_server
);
887 /* Get a client representation.
888 * Note: NFSv4 always uses TCP, */
889 error
= nfs4_set_client(server
, data
->hostname
,
892 parent_client
->cl_ipaddr
,
894 rpc_protocol(parent_server
->client
),
895 parent_server
->client
->cl_timeout
,
896 parent_client
->cl_mvops
->minor_version
,
897 parent_client
->cl_net
);
901 error
= nfs_init_server_rpcclient(server
, parent_server
->client
->cl_timeout
, data
->authflavor
);
905 error
= nfs4_server_common_setup(server
, mntfh
);
909 dprintk("<-- nfs_create_referral_server() = %p\n", server
);
913 nfs_free_server(server
);
914 dprintk("<-- nfs4_create_referral_server() = error %d\n", error
);
915 return ERR_PTR(error
);