#include <linux/lockd/lockd.h>
#include <linux/nfs.h>
+ #include "netns.h"
+
#define NLMDBG_FACILITY NLMDBG_SVC
#define LOCKD_BUFSIZE (1024 + NLMSVC_XDRSIZE)
#define ALLOWED_SIGS (sigmask(SIGKILL))
static struct svc_rqst *nlmsvc_rqst;
unsigned long nlmsvc_timeout;
+ int lockd_net_id;
+
/*
* These can be set at insmod time (useful for NFS as root filesystem),
* and also changed through the sysctl interface. -- Jamie Lokier, Aug 2003
}
static int create_lockd_listener(struct svc_serv *serv, const char *name,
- const int family, const unsigned short port)
+ struct net *net, const int family,
+ const unsigned short port)
{
struct svc_xprt *xprt;
- xprt = svc_find_xprt(serv, name, family, 0);
+ xprt = svc_find_xprt(serv, name, net, family, 0);
if (xprt == NULL)
- return svc_create_xprt(serv, name, &init_net, family, port,
+ return svc_create_xprt(serv, name, net, family, port,
SVC_SOCK_DEFAULTS);
svc_xprt_put(xprt);
return 0;
}
- static int create_lockd_family(struct svc_serv *serv, const int family)
+ static int create_lockd_family(struct svc_serv *serv, struct net *net,
+ const int family)
{
int err;
- err = create_lockd_listener(serv, "udp", family, nlm_udpport);
+ err = create_lockd_listener(serv, "udp", net, family, nlm_udpport);
if (err < 0)
return err;
- return create_lockd_listener(serv, "tcp", family, nlm_tcpport);
+ return create_lockd_listener(serv, "tcp", net, family, nlm_tcpport);
}
/*
* Returns zero if all listeners are available; otherwise a
* negative errno value is returned.
*/
- static int make_socks(struct svc_serv *serv)
+ static int make_socks(struct svc_serv *serv, struct net *net)
{
static int warned;
int err;
- err = create_lockd_family(serv, PF_INET);
+ err = create_lockd_family(serv, net, PF_INET);
if (err < 0)
goto out_err;
- err = create_lockd_family(serv, PF_INET6);
+ err = create_lockd_family(serv, net, PF_INET6);
if (err < 0 && err != -EAFNOSUPPORT)
goto out_err;
return err;
}
+ static int lockd_up_net(struct net *net)
+ {
+ struct lockd_net *ln = net_generic(net, lockd_net_id);
+ struct svc_serv *serv = nlmsvc_rqst->rq_server;
+ int error;
+
+ if (ln->nlmsvc_users)
+ return 0;
+
+ error = svc_rpcb_setup(serv, net);
+ if (error)
+ goto err_rpcb;
+
+ error = make_socks(serv, net);
+ if (error < 0)
+ goto err_socks;
+ return 0;
+
+ err_socks:
+ svc_rpcb_cleanup(serv, net);
+ err_rpcb:
+ return error;
+ }
+
+ static void lockd_down_net(struct net *net)
+ {
+ struct lockd_net *ln = net_generic(net, lockd_net_id);
+ struct svc_serv *serv = nlmsvc_rqst->rq_server;
+
+ if (ln->nlmsvc_users) {
+ if (--ln->nlmsvc_users == 0) {
+ nlm_shutdown_hosts_net(net);
+ svc_shutdown_net(serv, net);
+ }
+ } else {
+ printk(KERN_ERR "lockd_down_net: no users! task=%p, net=%p\n",
+ nlmsvc_task, net);
+ BUG();
+ }
+ }
+
/*
* Bring up the lockd process if it's not already up.
*/
{
struct svc_serv *serv;
int error = 0;
+ struct net *net = current->nsproxy->net_ns;
mutex_lock(&nlmsvc_mutex);
/*
* Check whether we're already up and running.
*/
- if (nlmsvc_rqst)
+ if (nlmsvc_rqst) {
+ error = lockd_up_net(net);
goto out;
+ }
/*
* Sanity check: if there's no pid,
goto out;
}
- error = make_socks(serv);
+ error = make_socks(serv, net);
if (error < 0)
goto destroy_and_out;
destroy_and_out:
svc_destroy(serv);
out:
- if (!error)
+ if (!error) {
+ struct lockd_net *ln = net_generic(net, lockd_net_id);
+
+ ln->nlmsvc_users++;
nlmsvc_users++;
+ }
mutex_unlock(&nlmsvc_mutex);
return error;
}
{
mutex_lock(&nlmsvc_mutex);
if (nlmsvc_users) {
- if (--nlmsvc_users)
+ if (--nlmsvc_users) {
+ lockd_down_net(current->nsproxy->net_ns);
goto out;
+ }
} else {
printk(KERN_ERR "lockd_down: no users! task=%p\n",
nlmsvc_task);
__typeof__(type) num = which_strtol(val, &endp, 0); \
if (endp == val || *endp || num < (min) || num > (max)) \
return -EINVAL; \
- *((int *) kp->arg) = num; \
+ *((type *) kp->arg) = num; \
return 0; \
}
module_param(nsm_use_hostnames, bool, 0644);
module_param(nlm_max_connections, uint, 0644);
+ static int lockd_init_net(struct net *net)
+ {
+ return 0;
+ }
+
+ static void lockd_exit_net(struct net *net)
+ {
+ }
+
+ static struct pernet_operations lockd_net_ops = {
+ .init = lockd_init_net,
+ .exit = lockd_exit_net,
+ .id = &lockd_net_id,
+ .size = sizeof(struct lockd_net),
+ };
+
+
/*
* Initialising and terminating the module.
*/
static int __init init_nlm(void)
{
+ int err;
+
#ifdef CONFIG_SYSCTL
+ err = -ENOMEM;
nlm_sysctl_table = register_sysctl_table(nlm_sysctl_root);
- return nlm_sysctl_table ? 0 : -ENOMEM;
- #else
+ if (nlm_sysctl_table == NULL)
+ goto err_sysctl;
+ #endif
+ err = register_pernet_subsys(&lockd_net_ops);
+ if (err)
+ goto err_pernet;
return 0;
+
+ err_pernet:
+ #ifdef CONFIG_SYSCTL
+ unregister_sysctl_table(nlm_sysctl_table);
#endif
+ err_sysctl:
+ return err;
}
static void __exit exit_nlm(void)
{
/* FIXME: delete all NLM clients */
nlm_shutdown_hosts();
+ unregister_pernet_subsys(&lockd_net_ops);
#ifdef CONFIG_SYSCTL
unregister_sysctl_table(nlm_sysctl_table);
#endif
.procs = nfs4_cb_procedures
};
- static struct rpc_version *nfs_cb_version[] = {
+ static const struct rpc_version *nfs_cb_version[] = {
&nfs_cb_version4,
};
- static struct rpc_program cb_program;
+ static const struct rpc_program cb_program;
static struct rpc_stat cb_stats = {
.program = &cb_program
};
#define NFS4_CALLBACK 0x40000000
- static struct rpc_program cb_program = {
+ static const struct rpc_program cb_program = {
.name = "nfs4_cb",
.number = NFS4_CALLBACK,
.nrvers = ARRAY_SIZE(nfs_cb_version),
.version = nfs_cb_version,
.stats = &cb_stats,
- .pipe_dir_name = "/nfsd4_cb",
+ .pipe_dir_name = "nfsd4_cb",
};
static int max_cb_time(void)
err = setup_callback_client(clp, &conn, ses);
if (err) {
- warn_no_callback_path(clp, err);
+ nfsd4_mark_cb_down(clp, err);
return;
}
/* Yay, the callback channel's back! Restart any callbacks: */
static const stateid_t zero_stateid = {
/* all fields zero */
};
+static const stateid_t currentstateid = {
+ .si_generation = 1,
+};
static u64 current_sessionid = 1;
#define ZERO_STATEID(stateid) (!memcmp((stateid), &zero_stateid, sizeof(stateid_t)))
#define ONE_STATEID(stateid) (!memcmp((stateid), &one_stateid, sizeof(stateid_t)))
+#define CURRENT_STATEID(stateid) (!memcmp((stateid), ¤tstateid, sizeof(stateid_t)))
/* forward declarations */
static int check_for_locks(struct nfs4_file *filp, struct nfs4_lockowner *lowner);
mutex_lock(&client_mutex);
}
+static void free_session(struct kref *);
+
+/* Must be called under the client_lock */
+static void nfsd4_put_session_locked(struct nfsd4_session *ses)
+{
+ kref_put(&ses->se_ref, free_session);
+}
+
+static void nfsd4_get_session(struct nfsd4_session *ses)
+{
+ kref_get(&ses->se_ref);
+}
+
void
nfs4_unlock_state(void)
{
return sid->sequence % SESSION_HASH_SIZE;
}
+#ifdef NFSD_DEBUG
static inline void
dump_sessionid(const char *fn, struct nfs4_sessionid *sessionid)
{
u32 *ptr = (u32 *)(&sessionid->data[0]);
dprintk("%s: %u:%u:%u:%u\n", fn, ptr[0], ptr[1], ptr[2], ptr[3]);
}
+#else
+static inline void
+dump_sessionid(const char *fn, struct nfs4_sessionid *sessionid)
+{
+}
+#endif
+
static void
gen_sessionid(struct nfsd4_session *ses)
spin_unlock(&clp->cl_lock);
}
-void free_session(struct kref *kref)
+static void free_session(struct kref *kref)
{
struct nfsd4_session *ses;
int mem;
+ BUG_ON(!spin_is_locked(&client_lock));
ses = container_of(kref, struct nfsd4_session, se_ref);
nfsd4_del_conns(ses);
spin_lock(&nfsd_drc_lock);
kfree(ses);
}
+void nfsd4_put_session(struct nfsd4_session *ses)
+{
+ spin_lock(&client_lock);
+ nfsd4_put_session_locked(ses);
+ spin_unlock(&client_lock);
+}
+
static struct nfsd4_session *alloc_init_session(struct svc_rqst *rqstp, struct nfs4_client *clp, struct nfsd4_create_session *cses)
{
struct nfsd4_session *new;
status = nfsd4_new_conn_from_crses(rqstp, new);
/* whoops: benny points out, status is ignored! (err, or bogus) */
if (status) {
+ spin_lock(&client_lock);
free_session(&new->se_ref);
+ spin_unlock(&client_lock);
return NULL;
}
if (cses->flags & SESSION4_BACK_CHAN) {
static inline void
free_client(struct nfs4_client *clp)
{
+ BUG_ON(!spin_is_locked(&client_lock));
while (!list_empty(&clp->cl_sessions)) {
struct nfsd4_session *ses;
ses = list_entry(clp->cl_sessions.next, struct nfsd4_session,
se_perclnt);
list_del(&ses->se_perclnt);
- nfsd4_put_session(ses);
+ nfsd4_put_session_locked(ses);
}
if (clp->cl_cred.cr_group_info)
put_group_info(clp->cl_cred.cr_group_info);
static void gen_confirm(struct nfs4_client *clp)
{
+ __be32 verf[2];
static u32 i;
- u32 *p;
- p = (u32 *)clp->cl_confirm.data;
- *p++ = get_seconds();
- *p++ = i++;
+ verf[0] = (__be32)get_seconds();
+ verf[1] = (__be32)i++;
+ memcpy(clp->cl_confirm.data, verf, sizeof(clp->cl_confirm.data));
}
static struct nfs4_stid *find_stateid(struct nfs4_client *cl, stateid_t *t)
if (princ) {
clp->cl_principal = kstrdup(princ, GFP_KERNEL);
if (clp->cl_principal == NULL) {
+ spin_lock(&client_lock);
free_client(clp);
+ spin_unlock(&client_lock);
return NULL;
}
}
else
goto out_err;
- conn->cb_addrlen = rpc_uaddr2sockaddr(se->se_callback_addr_val,
+ conn->cb_addrlen = rpc_uaddr2sockaddr(&init_net, se->se_callback_addr_val,
se->se_callback_addr_len,
(struct sockaddr *)&conn->cb_addr,
sizeof(conn->cb_addr));
slot->sl_opcnt = resp->opcnt;
slot->sl_status = resp->cstate.status;
+ slot->sl_flags |= NFSD4_SLOT_INITIALIZED;
if (nfsd4_not_cached(resp)) {
slot->sl_datalen = 0;
return;
struct nfsd4_op *op;
struct nfsd4_slot *slot = resp->cstate.slot;
- dprintk("--> %s resp->opcnt %d cachethis %u \n", __func__,
- resp->opcnt, resp->cstate.slot->sl_cachethis);
-
/* Encode the replayed sequence operation */
op = &args->ops[resp->opcnt - 1];
nfsd4_encode_operation(resp, op);
/* Return nfserr_retry_uncached_rep in next operation. */
- if (args->opcnt > 1 && slot->sl_cachethis == 0) {
+ if (args->opcnt > 1 && !(slot->sl_flags & NFSD4_SLOT_CACHETHIS)) {
op = &args->ops[resp->opcnt++];
op->status = nfserr_retry_uncached_rep;
nfsd4_encode_operation(resp, op);
else
return nfserr_seq_misordered;
}
- /* Normal */
+ /* Note unsigned 32-bit arithmetic handles wraparound: */
if (likely(seqid == slot_seqid + 1))
return nfs_ok;
- /* Replay */
if (seqid == slot_seqid)
return nfserr_replay_cache;
- /* Wraparound */
- if (seqid == 1 && (slot_seqid + 1) == 0)
- return nfs_ok;
- /* Misordered replay or misordered new request */
return nfserr_seq_misordered;
}
nfsd4_probe_callback_sync(ses->se_client);
nfs4_unlock_state();
+ spin_lock(&client_lock);
nfsd4_del_conns(ses);
-
- nfsd4_put_session(ses);
+ nfsd4_put_session_locked(ses);
+ spin_unlock(&client_lock);
status = nfs_ok;
out:
dprintk("%s returns %d\n", __func__, ntohl(status));
* sr_highest_slotid and the sr_target_slot id to maxslots */
seq->maxslots = session->se_fchannel.maxreqs;
- status = check_slot_seqid(seq->seqid, slot->sl_seqid, slot->sl_inuse);
+ status = check_slot_seqid(seq->seqid, slot->sl_seqid,
+ slot->sl_flags & NFSD4_SLOT_INUSE);
if (status == nfserr_replay_cache) {
+ status = nfserr_seq_misordered;
+ if (!(slot->sl_flags & NFSD4_SLOT_INITIALIZED))
+ goto out;
cstate->slot = slot;
cstate->session = session;
/* Return the cached reply status and set cstate->status
conn = NULL;
/* Success! bump slot seqid */
- slot->sl_inuse = true;
slot->sl_seqid = seq->seqid;
- slot->sl_cachethis = seq->cachethis;
+ slot->sl_flags |= NFSD4_SLOT_INUSE;
+ if (seq->cachethis)
+ slot->sl_flags |= NFSD4_SLOT_CACHETHIS;
+ else
+ slot->sl_flags &= ~NFSD4_SLOT_CACHETHIS;
cstate->slot = slot;
cstate->session = session;
static int share_access_to_flags(u32 share_access)
{
- share_access &= ~NFS4_SHARE_WANT_MASK;
-
return share_access == NFS4_SHARE_ACCESS_READ ? RD_STATE : WR_STATE;
}
static void
-nfs4_set_claim_prev(struct nfsd4_open *open)
+nfs4_set_claim_prev(struct nfsd4_open *open, bool has_session)
{
open->op_openowner->oo_flags |= NFS4_OO_CONFIRMED;
- open->op_openowner->oo_owner.so_client->cl_firststate = 1;
+ /*
+ * On a 4.1+ client, we don't create a state record for a client
+ * until it performs RECLAIM_COMPLETE:
+ */
+ if (!has_session)
+ open->op_openowner->oo_owner.so_client->cl_firststate = 1;
}
/* Should we give out recallable state?: */
return 0;
}
+static void nfsd4_open_deleg_none_ext(struct nfsd4_open *open, int status)
+{
+ open->op_delegate_type = NFS4_OPEN_DELEGATE_NONE_EXT;
+ if (status == -EAGAIN)
+ open->op_why_no_deleg = WND4_CONTENTION;
+ else {
+ open->op_why_no_deleg = WND4_RESOURCE;
+ switch (open->op_deleg_want) {
+ case NFS4_SHARE_WANT_READ_DELEG:
+ case NFS4_SHARE_WANT_WRITE_DELEG:
+ case NFS4_SHARE_WANT_ANY_DELEG:
+ break;
+ case NFS4_SHARE_WANT_CANCEL:
+ open->op_why_no_deleg = WND4_CANCELLED;
+ break;
+ case NFS4_SHARE_WANT_NO_DELEG:
+ BUG(); /* not supposed to get here */
+ }
+ }
+}
+
/*
* Attempt to hand out a delegation.
*/
struct nfs4_delegation *dp;
struct nfs4_openowner *oo = container_of(stp->st_stateowner, struct nfs4_openowner, oo_owner);
int cb_up;
- int status, flag = 0;
+ int status = 0, flag = 0;
cb_up = nfsd4_cb_channel_good(oo->oo_owner.so_client);
flag = NFS4_OPEN_DELEGATE_NONE;
dprintk("NFSD: delegation stateid=" STATEID_FMT "\n",
STATEID_VAL(&dp->dl_stid.sc_stateid));
out:
- if (open->op_claim_type == NFS4_OPEN_CLAIM_PREVIOUS
- && flag == NFS4_OPEN_DELEGATE_NONE
- && open->op_delegate_type != NFS4_OPEN_DELEGATE_NONE)
- dprintk("NFSD: WARNING: refusing delegation reclaim\n");
open->op_delegate_type = flag;
+ if (flag == NFS4_OPEN_DELEGATE_NONE) {
+ if (open->op_claim_type == NFS4_OPEN_CLAIM_PREVIOUS &&
+ open->op_delegate_type != NFS4_OPEN_DELEGATE_NONE)
+ dprintk("NFSD: WARNING: refusing delegation reclaim\n");
+
+ /* 4.1 client asking for a delegation? */
+ if (open->op_deleg_want)
+ nfsd4_open_deleg_none_ext(open, status);
+ }
return;
out_free:
nfs4_put_delegation(dp);
goto out;
}
+static void nfsd4_deleg_xgrade_none_ext(struct nfsd4_open *open,
+ struct nfs4_delegation *dp)
+{
+ if (open->op_deleg_want == NFS4_SHARE_WANT_READ_DELEG &&
+ dp->dl_type == NFS4_OPEN_DELEGATE_WRITE) {
+ open->op_delegate_type = NFS4_OPEN_DELEGATE_NONE_EXT;
+ open->op_why_no_deleg = WND4_NOT_SUPP_DOWNGRADE;
+ } else if (open->op_deleg_want == NFS4_SHARE_WANT_WRITE_DELEG &&
+ dp->dl_type == NFS4_OPEN_DELEGATE_WRITE) {
+ open->op_delegate_type = NFS4_OPEN_DELEGATE_NONE_EXT;
+ open->op_why_no_deleg = WND4_NOT_SUPP_UPGRADE;
+ }
+ /* Otherwise the client must be confused wanting a delegation
+ * it already has, therefore we don't return
+ * NFS4_OPEN_DELEGATE_NONE_EXT and reason.
+ */
+}
+
/*
* called with nfs4_lock_state() held.
*/
update_stateid(&stp->st_stid.sc_stateid);
memcpy(&open->op_stateid, &stp->st_stid.sc_stateid, sizeof(stateid_t));
- if (nfsd4_has_session(&resp->cstate))
+ if (nfsd4_has_session(&resp->cstate)) {
open->op_openowner->oo_flags |= NFS4_OO_CONFIRMED;
+ if (open->op_deleg_want & NFS4_SHARE_WANT_NO_DELEG) {
+ open->op_delegate_type = NFS4_OPEN_DELEGATE_NONE_EXT;
+ open->op_why_no_deleg = WND4_NOT_WANTED;
+ goto nodeleg;
+ }
+ }
+
/*
* Attempt to hand out a delegation. No error return, because the
* OPEN succeeds even if we fail.
*/
nfs4_open_delegation(current_fh, open, stp);
-
+nodeleg:
status = nfs_ok;
dprintk("%s: stateid=" STATEID_FMT "\n", __func__,
STATEID_VAL(&stp->st_stid.sc_stateid));
out:
+ /* 4.1 client trying to upgrade/downgrade delegation? */
+ if (open->op_delegate_type == NFS4_OPEN_DELEGATE_NONE && dp &&
+ open->op_deleg_want)
+ nfsd4_deleg_xgrade_none_ext(open, dp);
+
if (fp)
put_nfs4_file(fp);
if (status == 0 && open->op_claim_type == NFS4_OPEN_CLAIM_PREVIOUS)
- nfs4_set_claim_prev(open);
+ nfs4_set_claim_prev(open, nfsd4_has_session(&resp->cstate));
/*
* To finish the open response, we just need to set the rflags.
*/
nfsd4_test_stateid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
struct nfsd4_test_stateid *test_stateid)
{
- /* real work is done during encoding */
+ struct nfsd4_test_stateid_id *stateid;
+ struct nfs4_client *cl = cstate->session->se_client;
+
+ nfs4_lock_state();
+ list_for_each_entry(stateid, &test_stateid->ts_stateid_list, ts_id_list)
+ stateid->ts_id_status = nfs4_validate_stateid(cl, &stateid->ts_id_stateid);
+ nfs4_unlock_state();
+
return nfs_ok;
}
cstate->current_fh.fh_dentry->d_name.name);
/* We don't yet support WANT bits: */
- od->od_share_access &= NFS4_SHARE_ACCESS_MASK;
+ if (od->od_deleg_want)
+ dprintk("NFSD: %s: od_deleg_want=0x%x ignored\n", __func__,
+ od->od_deleg_want);
nfs4_lock_state();
status = nfs4_preprocess_confirmed_seqid_op(cstate, od->od_seqid,
struct nfs4_client *clp;
clp = find_confirmed_client_by_str(name, strhashval);
- return clp ? 1 : 0;
+ if (!clp)
+ return 0;
+ return clp->cl_firststate;
}
/*
/* initialization to perform when the nfsd service is started: */
-static int
-__nfs4_state_start(void)
+int
+nfs4_state_start(void)
{
int ret;
+ nfsd4_load_reboot_recovery_data();
boot_time = get_seconds();
locks_start_grace(&nfsd4_manager);
printk(KERN_INFO "NFSD: starting %ld-second grace period\n",
nfsd4_grace);
ret = set_callback_cred();
- if (ret)
- return -ENOMEM;
+ if (ret) {
+ ret = -ENOMEM;
+ goto out_recovery;
+ }
laundry_wq = create_singlethread_workqueue("nfsd4");
- if (laundry_wq == NULL)
- return -ENOMEM;
+ if (laundry_wq == NULL) {
+ ret = -ENOMEM;
+ goto out_recovery;
+ }
ret = nfsd4_create_callback_queue();
if (ret)
goto out_free_laundry;
return 0;
out_free_laundry:
destroy_workqueue(laundry_wq);
+out_recovery:
+ nfs4_release_reclaim();
+ nfsd4_shutdown_recdir();
return ret;
}
-int
-nfs4_state_start(void)
-{
- nfsd4_load_reboot_recovery_data();
- return __nfs4_state_start();
-}
-
static void
__nfs4_state_shutdown(void)
{
nfs4_unlock_state();
nfsd4_destroy_callback_queue();
}
+
+static void
+get_stateid(struct nfsd4_compound_state *cstate, stateid_t *stateid)
+{
+ if (HAS_STATE_ID(cstate, CURRENT_STATE_ID_FLAG) && CURRENT_STATEID(stateid))
+ memcpy(stateid, &cstate->current_stateid, sizeof(stateid_t));
+}
+
+static void
+put_stateid(struct nfsd4_compound_state *cstate, stateid_t *stateid)
+{
+ if (cstate->minorversion) {
+ memcpy(&cstate->current_stateid, stateid, sizeof(stateid_t));
+ SET_STATE_ID(cstate, CURRENT_STATE_ID_FLAG);
+ }
+}
+
+void
+clear_current_stateid(struct nfsd4_compound_state *cstate)
+{
+ CLEAR_STATE_ID(cstate, CURRENT_STATE_ID_FLAG);
+}
+
+/*
+ * functions to set current state id
+ */
+void
+nfsd4_set_opendowngradestateid(struct nfsd4_compound_state *cstate, struct nfsd4_open_downgrade *odp)
+{
+ put_stateid(cstate, &odp->od_stateid);
+}
+
+void
+nfsd4_set_openstateid(struct nfsd4_compound_state *cstate, struct nfsd4_open *open)
+{
+ put_stateid(cstate, &open->op_stateid);
+}
+
+void
+nfsd4_set_closestateid(struct nfsd4_compound_state *cstate, struct nfsd4_close *close)
+{
+ put_stateid(cstate, &close->cl_stateid);
+}
+
+void
+nfsd4_set_lockstateid(struct nfsd4_compound_state *cstate, struct nfsd4_lock *lock)
+{
+ put_stateid(cstate, &lock->lk_resp_stateid);
+}
+
+/*
+ * functions to consume current state id
+ */
+
+void
+nfsd4_get_opendowngradestateid(struct nfsd4_compound_state *cstate, struct nfsd4_open_downgrade *odp)
+{
+ get_stateid(cstate, &odp->od_stateid);
+}
+
+void
+nfsd4_get_delegreturnstateid(struct nfsd4_compound_state *cstate, struct nfsd4_delegreturn *drp)
+{
+ get_stateid(cstate, &drp->dr_stateid);
+}
+
+void
+nfsd4_get_freestateid(struct nfsd4_compound_state *cstate, struct nfsd4_free_stateid *fsp)
+{
+ get_stateid(cstate, &fsp->fr_stateid);
+}
+
+void
+nfsd4_get_setattrstateid(struct nfsd4_compound_state *cstate, struct nfsd4_setattr *setattr)
+{
+ get_stateid(cstate, &setattr->sa_stateid);
+}
+
+void
+nfsd4_get_closestateid(struct nfsd4_compound_state *cstate, struct nfsd4_close *close)
+{
+ get_stateid(cstate, &close->cl_stateid);
+}
+
+void
+nfsd4_get_lockustateid(struct nfsd4_compound_state *cstate, struct nfsd4_locku *locku)
+{
+ get_stateid(cstate, &locku->lu_stateid);
+}
+
+void
+nfsd4_get_readstateid(struct nfsd4_compound_state *cstate, struct nfsd4_read *read)
+{
+ get_stateid(cstate, &read->rd_stateid);
+}
+
+void
+nfsd4_get_writestateid(struct nfsd4_compound_state *cstate, struct nfsd4_write *write)
+{
+ get_stateid(cstate, &write->wr_stateid);
+}
nfsd_up = false;
}
- static void nfsd_last_thread(struct svc_serv *serv)
+ static void nfsd_last_thread(struct svc_serv *serv, struct net *net)
{
/* When last nfsd thread exits we need to do some clean-up */
nfsd_serv = NULL;
nfsd_shutdown();
- svc_rpcb_cleanup(serv);
+ svc_rpcb_cleanup(serv, net);
printk(KERN_WARNING "nfsd: last server has exited, flushing export "
"cache\n");
dprintk("%s nfsd_drc_max_mem %u \n", __func__, nfsd_drc_max_mem);
}
-int nfsd_create_serv(void)
+static int nfsd_get_default_max_blksize(void)
{
- int err = 0;
+ struct sysinfo i;
+ unsigned long long target;
+ unsigned long ret;
+ si_meminfo(&i);
+ target = (i.totalram - i.totalhigh) << PAGE_SHIFT;
+ /*
+ * Aim for 1/4096 of memory per thread This gives 1MB on 4Gig
+ * machines, but only uses 32K on 128M machines. Bottom out at
+ * 8K on 32M and smaller. Of course, this is only a default.
+ */
+ target >>= 12;
+
+ ret = NFSSVC_MAXBLKSIZE;
+ while (ret > target && ret >= 8*1024*2)
+ ret /= 2;
+ return ret;
+}
+
+int nfsd_create_serv(void)
+{
WARN_ON(!mutex_is_locked(&nfsd_mutex));
if (nfsd_serv) {
svc_get(nfsd_serv);
return 0;
}
- if (nfsd_max_blksize == 0) {
- /* choose a suitable default */
- struct sysinfo i;
- si_meminfo(&i);
- /* Aim for 1/4096 of memory per thread
- * This gives 1MB on 4Gig machines
- * But only uses 32K on 128M machines.
- * Bottom out at 8K on 32M and smaller.
- * Of course, this is only a default.
- */
- nfsd_max_blksize = NFSSVC_MAXBLKSIZE;
- i.totalram <<= PAGE_SHIFT - 12;
- while (nfsd_max_blksize > i.totalram &&
- nfsd_max_blksize >= 8*1024*2)
- nfsd_max_blksize /= 2;
- }
+ if (nfsd_max_blksize == 0)
+ nfsd_max_blksize = nfsd_get_default_max_blksize();
nfsd_reset_versions();
-
nfsd_serv = svc_create_pooled(&nfsd_program, nfsd_max_blksize,
nfsd_last_thread, nfsd, THIS_MODULE);
if (nfsd_serv == NULL)
set_max_drc();
do_gettimeofday(&nfssvc_boot); /* record boot time */
- return err;
+ return 0;
}
int nfsd_nrpools(void)
typedef struct { char data[NFS4_VERIFIER_SIZE]; } nfs4_verifier;
- struct nfs41_stateid {
+ struct nfs_stateid4 {
__be32 seqid;
char other[NFS4_STATEID_OTHER_SIZE];
} __attribute__ ((packed));
- typedef union {
- char data[NFS4_STATEID_SIZE];
- struct nfs41_stateid stateid;
- } nfs4_stateid;
+ typedef struct nfs_stateid4 nfs4_stateid;
enum nfs_opnum4 {
OP_ACCESS = 3,
enum open_delegation_type4 {
NFS4_OPEN_DELEGATE_NONE = 0,
NFS4_OPEN_DELEGATE_READ = 1,
- NFS4_OPEN_DELEGATE_WRITE = 2
+ NFS4_OPEN_DELEGATE_WRITE = 2,
+ NFS4_OPEN_DELEGATE_NONE_EXT = 3, /* 4.1 */
+};
+
+enum why_no_delegation4 { /* new to v4.1 */
+ WND4_NOT_WANTED = 0,
+ WND4_CONTENTION = 1,
+ WND4_RESOURCE = 2,
+ WND4_NOT_SUPP_FTYPE = 3,
+ WND4_WRITE_DELEG_NOT_SUPP_FTYPE = 4,
+ WND4_NOT_SUPP_UPGRADE = 5,
+ WND4_NOT_SUPP_DOWNGRADE = 6,
+ WND4_CANCELLED = 7,
+ WND4_IS_DIR = 8,
};
enum lock_type4 {
static void do_cache_clean(struct work_struct *work);
static struct delayed_work cache_cleaner;
- static void sunrpc_init_cache_detail(struct cache_detail *cd)
+ void sunrpc_init_cache_detail(struct cache_detail *cd)
{
rwlock_init(&cd->hash_lock);
INIT_LIST_HEAD(&cd->queue);
/* start the cleaning process */
schedule_delayed_work(&cache_cleaner, 0);
}
+ EXPORT_SYMBOL_GPL(sunrpc_init_cache_detail);
- static void sunrpc_destroy_cache_detail(struct cache_detail *cd)
+ void sunrpc_destroy_cache_detail(struct cache_detail *cd)
{
cache_purge(cd);
spin_lock(&cache_list_lock);
out:
printk(KERN_ERR "nfsd: failed to unregister %s cache\n", cd->name);
}
+ EXPORT_SYMBOL_GPL(sunrpc_destroy_cache_detail);
/* clean cache tries to find something to clean
* and cleans it.
{
ssize_t ret;
+ if (count == 0)
+ return -EINVAL;
if (copy_from_user(kaddr, buf, count))
return -EFAULT;
kaddr[count] = '\0';
}
EXPORT_SYMBOL_GPL(cache_register_net);
- int cache_register(struct cache_detail *cd)
- {
- return cache_register_net(cd, &init_net);
- }
- EXPORT_SYMBOL_GPL(cache_register);
-
void cache_unregister_net(struct cache_detail *cd, struct net *net)
{
remove_cache_proc_entries(cd, net);
}
EXPORT_SYMBOL_GPL(cache_unregister_net);
- void cache_unregister(struct cache_detail *cd)
+ struct cache_detail *cache_create_net(struct cache_detail *tmpl, struct net *net)
+ {
+ struct cache_detail *cd;
+
+ cd = kmemdup(tmpl, sizeof(struct cache_detail), GFP_KERNEL);
+ if (cd == NULL)
+ return ERR_PTR(-ENOMEM);
+
+ cd->hash_table = kzalloc(cd->hash_size * sizeof(struct cache_head *),
+ GFP_KERNEL);
+ if (cd->hash_table == NULL) {
+ kfree(cd);
+ return ERR_PTR(-ENOMEM);
+ }
+ cd->net = net;
+ return cd;
+ }
+ EXPORT_SYMBOL_GPL(cache_create_net);
+
+ void cache_destroy_net(struct cache_detail *cd, struct net *net)
{
- cache_unregister_net(cd, &init_net);
+ kfree(cd->hash_table);
+ kfree(cd);
}
- EXPORT_SYMBOL_GPL(cache_unregister);
+ EXPORT_SYMBOL_GPL(cache_destroy_net);
static ssize_t cache_read_pipefs(struct file *filp, char __user *buf,
size_t count, loff_t *ppos)
struct dentry *dir;
int ret = 0;
- sunrpc_init_cache_detail(cd);
q.name = name;
q.len = strlen(name);
q.hash = full_name_hash(q.name, q.len);
dir = rpc_create_cache_dir(parent, &q, umode, cd);
if (!IS_ERR(dir))
cd->u.pipefs.dir = dir;
- else {
- sunrpc_destroy_cache_detail(cd);
+ else
ret = PTR_ERR(dir);
- }
return ret;
}
EXPORT_SYMBOL_GPL(sunrpc_cache_register_pipefs);
{
rpc_remove_cache_dir(cd->u.pipefs.dir);
cd->u.pipefs.dir = NULL;
- sunrpc_destroy_cache_detail(cd);
}
EXPORT_SYMBOL_GPL(sunrpc_cache_unregister_pipefs);
len = qword_get(&mesg, buf, mlen);
if (len <= 0) return -EINVAL;
- if (rpc_pton(buf, len, &address.sa, sizeof(address)) == 0)
+ if (rpc_pton(cd->net, buf, len, &address.sa, sizeof(address)) == 0)
return -EINVAL;
switch (address.sa.sa_family) {
case AF_INET:
uid_t uid;
struct group_info *gi;
};
- static struct cache_head *gid_table[GID_HASHMAX];
static void unix_gid_put(struct kref *kref)
{
return sunrpc_cache_pipe_upcall(cd, h, unix_gid_request);
}
- static struct unix_gid *unix_gid_lookup(uid_t uid);
- extern struct cache_detail unix_gid_cache;
+ static struct unix_gid *unix_gid_lookup(struct cache_detail *cd, uid_t uid);
static int unix_gid_parse(struct cache_detail *cd,
char *mesg, int mlen)
time_t expiry;
struct unix_gid ug, *ugp;
- if (mlen <= 0 || mesg[mlen-1] != '\n')
+ if (mesg[mlen - 1] != '\n')
return -EINVAL;
mesg[mlen-1] = 0;
GROUP_AT(ug.gi, i) = gid;
}
- ugp = unix_gid_lookup(uid);
+ ugp = unix_gid_lookup(cd, uid);
if (ugp) {
struct cache_head *ch;
ug.h.flags = 0;
ug.h.expiry_time = expiry;
- ch = sunrpc_cache_update(&unix_gid_cache,
+ ch = sunrpc_cache_update(cd,
&ug.h, &ugp->h,
hash_long(uid, GID_HASHBITS));
if (!ch)
err = -ENOMEM;
else {
err = 0;
- cache_put(ch, &unix_gid_cache);
+ cache_put(ch, cd);
}
} else
err = -ENOMEM;
return 0;
}
- struct cache_detail unix_gid_cache = {
+ static struct cache_detail unix_gid_cache_template = {
.owner = THIS_MODULE,
.hash_size = GID_HASHMAX,
- .hash_table = gid_table,
.name = "auth.unix.gid",
.cache_put = unix_gid_put,
.cache_upcall = unix_gid_upcall,
.alloc = unix_gid_alloc,
};
- static struct unix_gid *unix_gid_lookup(uid_t uid)
+ int unix_gid_cache_create(struct net *net)
+ {
+ struct sunrpc_net *sn = net_generic(net, sunrpc_net_id);
+ struct cache_detail *cd;
+ int err;
+
+ cd = cache_create_net(&unix_gid_cache_template, net);
+ if (IS_ERR(cd))
+ return PTR_ERR(cd);
+ err = cache_register_net(cd, net);
+ if (err) {
+ cache_destroy_net(cd, net);
+ return err;
+ }
+ sn->unix_gid_cache = cd;
+ return 0;
+ }
+
+ void unix_gid_cache_destroy(struct net *net)
+ {
+ struct sunrpc_net *sn = net_generic(net, sunrpc_net_id);
+ struct cache_detail *cd = sn->unix_gid_cache;
+
+ sn->unix_gid_cache = NULL;
+ cache_purge(cd);
+ cache_unregister_net(cd, net);
+ cache_destroy_net(cd, net);
+ }
+
+ static struct unix_gid *unix_gid_lookup(struct cache_detail *cd, uid_t uid)
{
struct unix_gid ug;
struct cache_head *ch;
ug.uid = uid;
- ch = sunrpc_cache_lookup(&unix_gid_cache, &ug.h,
- hash_long(uid, GID_HASHBITS));
+ ch = sunrpc_cache_lookup(cd, &ug.h, hash_long(uid, GID_HASHBITS));
if (ch)
return container_of(ch, struct unix_gid, h);
else
struct unix_gid *ug;
struct group_info *gi;
int ret;
+ struct sunrpc_net *sn = net_generic(rqstp->rq_xprt->xpt_net,
+ sunrpc_net_id);
- ug = unix_gid_lookup(uid);
+ ug = unix_gid_lookup(sn->unix_gid_cache, uid);
if (!ug)
return ERR_PTR(-EAGAIN);
- ret = cache_check(&unix_gid_cache, &ug->h, &rqstp->rq_chandle);
+ ret = cache_check(sn->unix_gid_cache, &ug->h, &rqstp->rq_chandle);
switch (ret) {
case -ENOENT:
return ERR_PTR(-ENOENT);
return ERR_PTR(-ESHUTDOWN);
case 0:
gi = get_group_info(ug->gi);
- cache_put(&ug->h, &unix_gid_cache);
+ cache_put(&ug->h, sn->unix_gid_cache);
return gi;
default:
return ERR_PTR(-EAGAIN);
.set_client = svcauth_unix_set_client,
};
+ static struct cache_detail ip_map_cache_template = {
+ .owner = THIS_MODULE,
+ .hash_size = IP_HASHMAX,
+ .name = "auth.unix.ip",
+ .cache_put = ip_map_put,
+ .cache_upcall = ip_map_upcall,
+ .cache_parse = ip_map_parse,
+ .cache_show = ip_map_show,
+ .match = ip_map_match,
+ .init = ip_map_init,
+ .update = update,
+ .alloc = ip_map_alloc,
+ };
+
int ip_map_cache_create(struct net *net)
{
- int err = -ENOMEM;
- struct cache_detail *cd;
- struct cache_head **tbl;
struct sunrpc_net *sn = net_generic(net, sunrpc_net_id);
+ struct cache_detail *cd;
+ int err;
- cd = kzalloc(sizeof(struct cache_detail), GFP_KERNEL);
- if (cd == NULL)
- goto err_cd;
-
- tbl = kzalloc(IP_HASHMAX * sizeof(struct cache_head *), GFP_KERNEL);
- if (tbl == NULL)
- goto err_tbl;
-
- cd->owner = THIS_MODULE,
- cd->hash_size = IP_HASHMAX,
- cd->hash_table = tbl,
- cd->name = "auth.unix.ip",
- cd->cache_put = ip_map_put,
- cd->cache_upcall = ip_map_upcall,
- cd->cache_parse = ip_map_parse,
- cd->cache_show = ip_map_show,
- cd->match = ip_map_match,
- cd->init = ip_map_init,
- cd->update = update,
- cd->alloc = ip_map_alloc,
-
+ cd = cache_create_net(&ip_map_cache_template, net);
+ if (IS_ERR(cd))
+ return PTR_ERR(cd);
err = cache_register_net(cd, net);
- if (err)
- goto err_reg;
-
+ if (err) {
+ cache_destroy_net(cd, net);
+ return err;
+ }
sn->ip_map_cache = cd;
return 0;
-
- err_reg:
- kfree(tbl);
- err_tbl:
- kfree(cd);
- err_cd:
- return err;
}
void ip_map_cache_destroy(struct net *net)
{
- struct sunrpc_net *sn;
+ struct sunrpc_net *sn = net_generic(net, sunrpc_net_id);
+ struct cache_detail *cd = sn->ip_map_cache;
- sn = net_generic(net, sunrpc_net_id);
- cache_purge(sn->ip_map_cache);
- cache_unregister_net(sn->ip_map_cache, net);
- kfree(sn->ip_map_cache->hash_table);
- kfree(sn->ip_map_cache);
+ sn->ip_map_cache = NULL;
+ cache_purge(cd);
+ cache_unregister_net(cd, net);
+ cache_destroy_net(cd, net);
}
int buflen, unsigned int base)
{
size_t save_iovlen;
- void __user *save_iovbase;
+ void *save_iovbase;
unsigned int i;
int ret;
spin_lock_bh(&serv->sv_lock);
list_for_each_entry(svsk, &serv->sv_permsocks, sk_xprt.xpt_list)
set_bit(XPT_CHNGBUF, &svsk->sk_xprt.xpt_flags);
- list_for_each_entry(svsk, &serv->sv_tempsocks, sk_xprt.xpt_list)
- set_bit(XPT_CHNGBUF, &svsk->sk_xprt.xpt_flags);
spin_unlock_bh(&serv->sv_lock);
}
EXPORT_SYMBOL_GPL(svc_sock_update_bufs);
/* Register socket with portmapper */
if (*errp >= 0 && pmap_register)
- *errp = svc_register(serv, inet->sk_family, inet->sk_protocol,
+ *errp = svc_register(serv, sock_net(sock->sk), inet->sk_family,
+ inet->sk_protocol,
ntohs(inet_sk(inet)->inet_sport));
if (*errp < 0) {
projects / firefly-linux-kernel-4.4.55.git / commitdiff