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-rw-r--r--fs/locks.c8
-rw-r--r--fs/nfsd/acl.h59
-rw-r--r--fs/nfsd/export.c4
-rw-r--r--fs/nfsd/idmap.h62
-rw-r--r--fs/nfsd/nfs3proc.c8
-rw-r--r--fs/nfsd/nfs4acl.c2
-rw-r--r--fs/nfsd/nfs4callback.c151
-rw-r--r--fs/nfsd/nfs4idmap.c15
-rw-r--r--fs/nfsd/nfs4proc.c59
-rw-r--r--fs/nfsd/nfs4recover.c1
-rw-r--r--fs/nfsd/nfs4state.c243
-rw-r--r--fs/nfsd/nfs4xdr.c115
-rw-r--r--fs/nfsd/nfsctl.c4
-rw-r--r--fs/nfsd/nfsd.h1
-rw-r--r--fs/nfsd/nfsproc.c6
-rw-r--r--fs/nfsd/nfssvc.c2
-rw-r--r--fs/nfsd/state.h16
-rw-r--r--fs/nfsd/vfs.c85
-rw-r--r--fs/nfsd/xdr4.h9
19 files changed, 573 insertions, 277 deletions
diff --git a/fs/locks.c b/fs/locks.c
index 08415b2..0f39982 100644
--- a/fs/locks.c
+++ b/fs/locks.c
@@ -444,15 +444,9 @@ static void lease_release_private_callback(struct file_lock *fl)
fl->fl_file->f_owner.signum = 0;
}
-static int lease_mylease_callback(struct file_lock *fl, struct file_lock *try)
-{
- return fl->fl_file == try->fl_file;
-}
-
static const struct lock_manager_operations lease_manager_ops = {
.fl_break = lease_break_callback,
.fl_release_private = lease_release_private_callback,
- .fl_mylease = lease_mylease_callback,
.fl_change = lease_modify,
};
@@ -1405,7 +1399,7 @@ int generic_setlease(struct file *filp, long arg, struct file_lock **flp)
for (before = &inode->i_flock;
((fl = *before) != NULL) && IS_LEASE(fl);
before = &fl->fl_next) {
- if (lease->fl_lmops->fl_mylease(fl, lease))
+ if (fl->fl_file == filp)
my_before = before;
else if (fl->fl_type == (F_INPROGRESS | F_UNLCK))
/*
diff --git a/fs/nfsd/acl.h b/fs/nfsd/acl.h
new file mode 100644
index 0000000..34e5c40
--- /dev/null
+++ b/fs/nfsd/acl.h
@@ -0,0 +1,59 @@
+/*
+ * Common NFSv4 ACL handling definitions.
+ *
+ * Copyright (c) 2002 The Regents of the University of Michigan.
+ * All rights reserved.
+ *
+ * Marius Aamodt Eriksen <marius@umich.edu>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef LINUX_NFS4_ACL_H
+#define LINUX_NFS4_ACL_H
+
+#include <linux/posix_acl.h>
+
+/* Maximum ACL we'll accept from client; chosen (somewhat arbitrarily) to
+ * fit in a page: */
+#define NFS4_ACL_MAX 170
+
+struct nfs4_acl *nfs4_acl_new(int);
+int nfs4_acl_get_whotype(char *, u32);
+int nfs4_acl_write_who(int who, char *p);
+int nfs4_acl_permission(struct nfs4_acl *acl, uid_t owner, gid_t group,
+ uid_t who, u32 mask);
+
+#define NFS4_ACL_TYPE_DEFAULT 0x01
+#define NFS4_ACL_DIR 0x02
+#define NFS4_ACL_OWNER 0x04
+
+struct nfs4_acl *nfs4_acl_posix_to_nfsv4(struct posix_acl *,
+ struct posix_acl *, unsigned int flags);
+int nfs4_acl_nfsv4_to_posix(struct nfs4_acl *, struct posix_acl **,
+ struct posix_acl **, unsigned int flags);
+
+#endif /* LINUX_NFS4_ACL_H */
diff --git a/fs/nfsd/export.c b/fs/nfsd/export.c
index c0fcb7a..8b31e5f 100644
--- a/fs/nfsd/export.c
+++ b/fs/nfsd/export.c
@@ -1,4 +1,3 @@
-#define MSNFS /* HACK HACK */
/*
* NFS exporting and validation.
*
@@ -1444,9 +1443,6 @@ static struct flags {
{ NFSEXP_NOSUBTREECHECK, {"no_subtree_check", ""}},
{ NFSEXP_NOAUTHNLM, {"insecure_locks", ""}},
{ NFSEXP_V4ROOT, {"v4root", ""}},
-#ifdef MSNFS
- { NFSEXP_MSNFS, {"msnfs", ""}},
-#endif
{ 0, {"", ""}}
};
diff --git a/fs/nfsd/idmap.h b/fs/nfsd/idmap.h
new file mode 100644
index 0000000..2f3be13
--- /dev/null
+++ b/fs/nfsd/idmap.h
@@ -0,0 +1,62 @@
+/*
+ * Mapping of UID to name and vice versa.
+ *
+ * Copyright (c) 2002, 2003 The Regents of the University of
+ * Michigan. All rights reserved.
+> *
+ * Marius Aamodt Eriksen <marius@umich.edu>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef LINUX_NFSD_IDMAP_H
+#define LINUX_NFSD_IDMAP_H
+
+#include <linux/in.h>
+#include <linux/sunrpc/svc.h>
+
+/* XXX from linux/nfs_idmap.h */
+#define IDMAP_NAMESZ 128
+
+#ifdef CONFIG_NFSD_V4
+int nfsd_idmap_init(void);
+void nfsd_idmap_shutdown(void);
+#else
+static inline int nfsd_idmap_init(void)
+{
+ return 0;
+}
+static inline void nfsd_idmap_shutdown(void)
+{
+}
+#endif
+
+__be32 nfsd_map_name_to_uid(struct svc_rqst *, const char *, size_t, __u32 *);
+__be32 nfsd_map_name_to_gid(struct svc_rqst *, const char *, size_t, __u32 *);
+int nfsd_map_uid_to_name(struct svc_rqst *, __u32, char *);
+int nfsd_map_gid_to_name(struct svc_rqst *, __u32, char *);
+
+#endif /* LINUX_NFSD_IDMAP_H */
diff --git a/fs/nfsd/nfs3proc.c b/fs/nfsd/nfs3proc.c
index 5b7e302..2247fc9 100644
--- a/fs/nfsd/nfs3proc.c
+++ b/fs/nfsd/nfs3proc.c
@@ -151,10 +151,10 @@ nfsd3_proc_read(struct svc_rqst *rqstp, struct nfsd3_readargs *argp,
__be32 nfserr;
u32 max_blocksize = svc_max_payload(rqstp);
- dprintk("nfsd: READ(3) %s %lu bytes at %lu\n",
+ dprintk("nfsd: READ(3) %s %lu bytes at %Lu\n",
SVCFH_fmt(&argp->fh),
(unsigned long) argp->count,
- (unsigned long) argp->offset);
+ (unsigned long long) argp->offset);
/* Obtain buffer pointer for payload.
* 1 (status) + 22 (post_op_attr) + 1 (count) + 1 (eof)
@@ -191,10 +191,10 @@ nfsd3_proc_write(struct svc_rqst *rqstp, struct nfsd3_writeargs *argp,
__be32 nfserr;
unsigned long cnt = argp->len;
- dprintk("nfsd: WRITE(3) %s %d bytes at %ld%s\n",
+ dprintk("nfsd: WRITE(3) %s %d bytes at %Lu%s\n",
SVCFH_fmt(&argp->fh),
argp->len,
- (unsigned long) argp->offset,
+ (unsigned long long) argp->offset,
argp->stable? " stable" : "");
fh_copy(&resp->fh, &argp->fh);
diff --git a/fs/nfsd/nfs4acl.c b/fs/nfsd/nfs4acl.c
index e480526..ad88f1c 100644
--- a/fs/nfsd/nfs4acl.c
+++ b/fs/nfsd/nfs4acl.c
@@ -36,7 +36,7 @@
#include <linux/slab.h>
#include <linux/nfs_fs.h>
-#include <linux/nfs4_acl.h>
+#include "acl.h"
/* mode bit translations: */
diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c
index 21a63da..3be975e 100644
--- a/fs/nfsd/nfs4callback.c
+++ b/fs/nfsd/nfs4callback.c
@@ -628,10 +628,8 @@ static int max_cb_time(void)
return max(nfsd4_lease/10, (time_t)1) * HZ;
}
-/* Reference counting, callback cleanup, etc., all look racy as heck.
- * And why is cl_cb_set an atomic? */
-int setup_callback_client(struct nfs4_client *clp, struct nfs4_cb_conn *conn)
+static int setup_callback_client(struct nfs4_client *clp, struct nfs4_cb_conn *conn, struct nfsd4_session *ses)
{
struct rpc_timeout timeparms = {
.to_initval = max_cb_time(),
@@ -641,6 +639,7 @@ int setup_callback_client(struct nfs4_client *clp, struct nfs4_cb_conn *conn)
.net = &init_net,
.address = (struct sockaddr *) &conn->cb_addr,
.addrsize = conn->cb_addrlen,
+ .saddress = (struct sockaddr *) &conn->cb_saddr,
.timeout = &timeparms,
.program = &cb_program,
.version = 0,
@@ -657,6 +656,10 @@ int setup_callback_client(struct nfs4_client *clp, struct nfs4_cb_conn *conn)
args.protocol = XPRT_TRANSPORT_TCP;
clp->cl_cb_ident = conn->cb_ident;
} else {
+ if (!conn->cb_xprt)
+ return -EINVAL;
+ clp->cl_cb_conn.cb_xprt = conn->cb_xprt;
+ clp->cl_cb_session = ses;
args.bc_xprt = conn->cb_xprt;
args.prognumber = clp->cl_cb_session->se_cb_prog;
args.protocol = XPRT_TRANSPORT_BC_TCP;
@@ -679,14 +682,20 @@ static void warn_no_callback_path(struct nfs4_client *clp, int reason)
(int)clp->cl_name.len, clp->cl_name.data, reason);
}
+static void nfsd4_mark_cb_down(struct nfs4_client *clp, int reason)
+{
+ clp->cl_cb_state = NFSD4_CB_DOWN;
+ warn_no_callback_path(clp, reason);
+}
+
static void nfsd4_cb_probe_done(struct rpc_task *task, void *calldata)
{
struct nfs4_client *clp = container_of(calldata, struct nfs4_client, cl_cb_null);
if (task->tk_status)
- warn_no_callback_path(clp, task->tk_status);
+ nfsd4_mark_cb_down(clp, task->tk_status);
else
- atomic_set(&clp->cl_cb_set, 1);
+ clp->cl_cb_state = NFSD4_CB_UP;
}
static const struct rpc_call_ops nfsd4_cb_probe_ops = {
@@ -709,6 +718,11 @@ int set_callback_cred(void)
static struct workqueue_struct *callback_wq;
+static void run_nfsd4_cb(struct nfsd4_callback *cb)
+{
+ queue_work(callback_wq, &cb->cb_work);
+}
+
static void do_probe_callback(struct nfs4_client *clp)
{
struct nfsd4_callback *cb = &clp->cl_cb_null;
@@ -723,7 +737,7 @@ static void do_probe_callback(struct nfs4_client *clp)
cb->cb_ops = &nfsd4_cb_probe_ops;
- queue_work(callback_wq, &cb->cb_work);
+ run_nfsd4_cb(cb);
}
/*
@@ -732,14 +746,21 @@ static void do_probe_callback(struct nfs4_client *clp)
*/
void nfsd4_probe_callback(struct nfs4_client *clp)
{
+ /* XXX: atomicity? Also, should we be using cl_cb_flags? */
+ clp->cl_cb_state = NFSD4_CB_UNKNOWN;
set_bit(NFSD4_CLIENT_CB_UPDATE, &clp->cl_cb_flags);
do_probe_callback(clp);
}
-void nfsd4_change_callback(struct nfs4_client *clp, struct nfs4_cb_conn *conn)
+void nfsd4_probe_callback_sync(struct nfs4_client *clp)
{
- BUG_ON(atomic_read(&clp->cl_cb_set));
+ nfsd4_probe_callback(clp);
+ flush_workqueue(callback_wq);
+}
+void nfsd4_change_callback(struct nfs4_client *clp, struct nfs4_cb_conn *conn)
+{
+ clp->cl_cb_state = NFSD4_CB_UNKNOWN;
spin_lock(&clp->cl_lock);
memcpy(&clp->cl_cb_conn, conn, sizeof(struct nfs4_cb_conn));
spin_unlock(&clp->cl_lock);
@@ -750,24 +771,14 @@ void nfsd4_change_callback(struct nfs4_client *clp, struct nfs4_cb_conn *conn)
* If the slot is available, then mark it busy. Otherwise, set the
* thread for sleeping on the callback RPC wait queue.
*/
-static int nfsd41_cb_setup_sequence(struct nfs4_client *clp,
- struct rpc_task *task)
+static bool nfsd41_cb_get_slot(struct nfs4_client *clp, struct rpc_task *task)
{
- u32 *ptr = (u32 *)clp->cl_cb_session->se_sessionid.data;
- int status = 0;
-
- dprintk("%s: %u:%u:%u:%u\n", __func__,
- ptr[0], ptr[1], ptr[2], ptr[3]);
-
if (test_and_set_bit(0, &clp->cl_cb_slot_busy) != 0) {
rpc_sleep_on(&clp->cl_cb_waitq, task, NULL);
dprintk("%s slot is busy\n", __func__);
- status = -EAGAIN;
- goto out;
+ return false;
}
-out:
- dprintk("%s status=%d\n", __func__, status);
- return status;
+ return true;
}
/*
@@ -780,20 +791,19 @@ static void nfsd4_cb_prepare(struct rpc_task *task, void *calldata)
struct nfs4_delegation *dp = container_of(cb, struct nfs4_delegation, dl_recall);
struct nfs4_client *clp = dp->dl_client;
u32 minorversion = clp->cl_minorversion;
- int status = 0;
cb->cb_minorversion = minorversion;
if (minorversion) {
- status = nfsd41_cb_setup_sequence(clp, task);
- if (status) {
- if (status != -EAGAIN) {
- /* terminate rpc task */
- task->tk_status = status;
- task->tk_action = NULL;
- }
+ if (!nfsd41_cb_get_slot(clp, task))
return;
- }
}
+ spin_lock(&clp->cl_lock);
+ if (list_empty(&cb->cb_per_client)) {
+ /* This is the first call, not a restart */
+ cb->cb_done = false;
+ list_add(&cb->cb_per_client, &clp->cl_callbacks);
+ }
+ spin_unlock(&clp->cl_lock);
rpc_call_start(task);
}
@@ -829,15 +839,18 @@ static void nfsd4_cb_recall_done(struct rpc_task *task, void *calldata)
nfsd4_cb_done(task, calldata);
- if (current_rpc_client == NULL) {
- /* We're shutting down; give up. */
- /* XXX: err, or is it ok just to fall through
- * and rpc_restart_call? */
+ if (current_rpc_client != task->tk_client) {
+ /* We're shutting down or changing cl_cb_client; leave
+ * it to nfsd4_process_cb_update to restart the call if
+ * necessary. */
return;
}
+ if (cb->cb_done)
+ return;
switch (task->tk_status) {
case 0:
+ cb->cb_done = true;
return;
case -EBADHANDLE:
case -NFS4ERR_BAD_STATEID:
@@ -846,32 +859,30 @@ static void nfsd4_cb_recall_done(struct rpc_task *task, void *calldata)
break;
default:
/* Network partition? */
- atomic_set(&clp->cl_cb_set, 0);
- warn_no_callback_path(clp, task->tk_status);
- if (current_rpc_client != task->tk_client) {
- /* queue a callback on the new connection: */
- atomic_inc(&dp->dl_count);
- nfsd4_cb_recall(dp);
- return;
- }
+ nfsd4_mark_cb_down(clp, task->tk_status);
}
if (dp->dl_retries--) {
rpc_delay(task, 2*HZ);
task->tk_status = 0;
rpc_restart_call_prepare(task);
return;
- } else {
- atomic_set(&clp->cl_cb_set, 0);
- warn_no_callback_path(clp, task->tk_status);
}
+ nfsd4_mark_cb_down(clp, task->tk_status);
+ cb->cb_done = true;
}
static void nfsd4_cb_recall_release(void *calldata)
{
struct nfsd4_callback *cb = calldata;
+ struct nfs4_client *clp = cb->cb_clp;
struct nfs4_delegation *dp = container_of(cb, struct nfs4_delegation, dl_recall);
- nfs4_put_delegation(dp);
+ if (cb->cb_done) {
+ spin_lock(&clp->cl_lock);
+ list_del(&cb->cb_per_client);
+ spin_unlock(&clp->cl_lock);
+ nfs4_put_delegation(dp);
+ }
}
static const struct rpc_call_ops nfsd4_cb_recall_ops = {
@@ -906,16 +917,33 @@ void nfsd4_shutdown_callback(struct nfs4_client *clp)
flush_workqueue(callback_wq);
}
-void nfsd4_release_cb(struct nfsd4_callback *cb)
+static void nfsd4_release_cb(struct nfsd4_callback *cb)
{
if (cb->cb_ops->rpc_release)
cb->cb_ops->rpc_release(cb);
}
-void nfsd4_process_cb_update(struct nfsd4_callback *cb)
+/* requires cl_lock: */
+static struct nfsd4_conn * __nfsd4_find_backchannel(struct nfs4_client *clp)
+{
+ struct nfsd4_session *s;
+ struct nfsd4_conn *c;
+
+ list_for_each_entry(s, &clp->cl_sessions, se_perclnt) {
+ list_for_each_entry(c, &s->se_conns, cn_persession) {
+ if (c->cn_flags & NFS4_CDFC4_BACK)
+ return c;
+ }
+ }
+ return NULL;
+}
+
+static void nfsd4_process_cb_update(struct nfsd4_callback *cb)
{
struct nfs4_cb_conn conn;
struct nfs4_client *clp = cb->cb_clp;
+ struct nfsd4_session *ses = NULL;
+ struct nfsd4_conn *c;
int err;
/*
@@ -926,6 +954,10 @@ void nfsd4_process_cb_update(struct nfsd4_callback *cb)
rpc_shutdown_client(clp->cl_cb_client);
clp->cl_cb_client = NULL;
}
+ if (clp->cl_cb_conn.cb_xprt) {
+ svc_xprt_put(clp->cl_cb_conn.cb_xprt);
+ clp->cl_cb_conn.cb_xprt = NULL;
+ }
if (test_bit(NFSD4_CLIENT_KILL, &clp->cl_cb_flags))
return;
spin_lock(&clp->cl_lock);
@@ -936,11 +968,22 @@ void nfsd4_process_cb_update(struct nfsd4_callback *cb)
BUG_ON(!clp->cl_cb_flags);
clear_bit(NFSD4_CLIENT_CB_UPDATE, &clp->cl_cb_flags);
memcpy(&conn, &cb->cb_clp->cl_cb_conn, sizeof(struct nfs4_cb_conn));
+ c = __nfsd4_find_backchannel(clp);
+ if (c) {
+ svc_xprt_get(c->cn_xprt);
+ conn.cb_xprt = c->cn_xprt;
+ ses = c->cn_session;
+ }
spin_unlock(&clp->cl_lock);
- err = setup_callback_client(clp, &conn);
- if (err)
+ err = setup_callback_client(clp, &conn, ses);
+ if (err) {
warn_no_callback_path(clp, err);
+ return;
+ }
+ /* Yay, the callback channel's back! Restart any callbacks: */
+ list_for_each_entry(cb, &clp->cl_callbacks, cb_per_client)
+ run_nfsd4_cb(cb);
}
void nfsd4_do_callback_rpc(struct work_struct *w)
@@ -965,10 +1008,11 @@ void nfsd4_do_callback_rpc(struct work_struct *w)
void nfsd4_cb_recall(struct nfs4_delegation *dp)
{
struct nfsd4_callback *cb = &dp->dl_recall;
+ struct nfs4_client *clp = dp->dl_client;
dp->dl_retries = 1;
cb->cb_op = dp;
- cb->cb_clp = dp->dl_client;
+ cb->cb_clp = clp;
cb->cb_msg.rpc_proc = &nfs4_cb_procedures[NFSPROC4_CLNT_CB_RECALL];
cb->cb_msg.rpc_argp = cb;
cb->cb_msg.rpc_resp = cb;
@@ -977,5 +1021,8 @@ void nfsd4_cb_recall(struct nfs4_delegation *dp)
cb->cb_ops = &nfsd4_cb_recall_ops;
dp->dl_retries = 1;
- queue_work(callback_wq, &dp->dl_recall.cb_work);
+ INIT_LIST_HEAD(&cb->cb_per_client);
+ cb->cb_done = true;
+
+ run_nfsd4_cb(&dp->dl_recall);
}
diff --git a/fs/nfsd/nfs4idmap.c b/fs/nfsd/nfs4idmap.c
index f0695e8..6d2c397 100644
--- a/fs/nfsd/nfs4idmap.c
+++ b/fs/nfsd/nfs4idmap.c
@@ -33,10 +33,11 @@
*/
#include <linux/module.h>
-#include <linux/nfsd_idmap.h>
#include <linux/seq_file.h>
#include <linux/sched.h>
#include <linux/slab.h>
+#include "idmap.h"
+#include "nfsd.h"
/*
* Cache entry
@@ -514,7 +515,7 @@ rqst_authname(struct svc_rqst *rqstp)
return clp->name;
}
-static int
+static __be32
idmap_name_to_id(struct svc_rqst *rqstp, int type, const char *name, u32 namelen,
uid_t *id)
{
@@ -524,15 +525,15 @@ idmap_name_to_id(struct svc_rqst *rqstp, int type, const char *name, u32 namelen
int ret;
if (namelen + 1 > sizeof(key.name))
- return -EINVAL;
+ return nfserr_badowner;
memcpy(key.name, name, namelen);
key.name[namelen] = '\0';
strlcpy(key.authname, rqst_authname(rqstp), sizeof(key.authname));
ret = idmap_lookup(rqstp, nametoid_lookup, &key, &nametoid_cache, &item);
if (ret == -ENOENT)
- ret = -ESRCH; /* nfserr_badname */
+ return nfserr_badowner;
if (ret)
- return ret;
+ return nfserrno(ret);
*id = item->id;
cache_put(&item->h, &nametoid_cache);
return 0;
@@ -560,14 +561,14 @@ idmap_id_to_name(struct svc_rqst *rqstp, int type, uid_t id, char *name)
return ret;
}
-int
+__be32
nfsd_map_name_to_uid(struct svc_rqst *rqstp, const char *name, size_t namelen,
__u32 *id)
{
return idmap_name_to_id(rqstp, IDMAP_TYPE_USER, name, namelen, id);
}
-int
+__be32
nfsd_map_name_to_gid(struct svc_rqst *rqstp, const char *name, size_t namelen,
__u32 *id)
{
diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index 0cdfd02..db52546 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -604,9 +604,7 @@ nfsd4_link(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
return status;
}
-static __be32
-nfsd4_lookupp(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
- void *arg)
+static __be32 nfsd4_do_lookupp(struct svc_rqst *rqstp, struct svc_fh *fh)
{
struct svc_fh tmp_fh;
__be32 ret;
@@ -615,13 +613,19 @@ nfsd4_lookupp(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
ret = exp_pseudoroot(rqstp, &tmp_fh);
if (ret)
return ret;
- if (tmp_fh.fh_dentry == cstate->current_fh.fh_dentry) {
+ if (tmp_fh.fh_dentry == fh->fh_dentry) {
fh_put(&tmp_fh);
return nfserr_noent;
}
fh_put(&tmp_fh);
- return nfsd_lookup(rqstp, &cstate->current_fh,
- "..", 2, &cstate->current_fh);
+ return nfsd_lookup(rqstp, fh, "..", 2, fh);
+}
+
+static __be32
+nfsd4_lookupp(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
+ void *arg)
+{
+ return nfsd4_do_lookupp(rqstp, &cstate->current_fh);
}
static __be32
@@ -769,10 +773,36 @@ nfsd4_secinfo(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
} else
secinfo->si_exp = exp;
dput(dentry);
+ if (cstate->minorversion)
+ /* See rfc 5661 section 2.6.3.1.1.8 */
+ fh_put(&cstate->current_fh);
return err;
}
static __be32
+nfsd4_secinfo_no_name(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
+ struct nfsd4_secinfo_no_name *sin)
+{
+ __be32 err;
+
+ switch (sin->sin_style) {
+ case NFS4_SECINFO_STYLE4_CURRENT_FH:
+ break;
+ case NFS4_SECINFO_STYLE4_PARENT:
+ err = nfsd4_do_lookupp(rqstp, &cstate->current_fh);
+ if (err)
+ return err;
+ break;
+ default:
+ return nfserr_inval;
+ }
+ exp_get(cstate->current_fh.fh_export);
+ sin->sin_exp = cstate->current_fh.fh_export;
+ fh_put(&cstate->current_fh);
+ return nfs_ok;
+}
+
+static __be32
nfsd4_setattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
struct nfsd4_setattr *setattr)
{
@@ -974,8 +1004,8 @@ static const char *nfsd4_op_name(unsigned opnum);
* Also note, enforced elsewhere:
* - SEQUENCE other than as first op results in
* NFS4ERR_SEQUENCE_POS. (Enforced in nfsd4_sequence().)
- * - BIND_CONN_TO_SESSION must be the only op in its compound
- * (Will be enforced in nfsd4_bind_conn_to_session().)
+ * - BIND_CONN_TO_SESSION must be the only op in its compound.
+ * (Enforced in nfsd4_bind_conn_to_session().)
* - DESTROY_SESSION must be the final operation in a compound, if
* sessionid's in SEQUENCE and DESTROY_SESSION are the same.
* (Enforced in nfsd4_destroy_session().)
@@ -1126,10 +1156,6 @@ encode_op:
nfsd4_increment_op_stats(op->opnum);
}
- if (!rqstp->rq_usedeferral && status == nfserr_dropit) {
- dprintk("%s Dropit - send NFS4ERR_DELAY\n", __func__);
- status = nfserr_jukebox;
- }
resp->cstate.status = status;
fh_put(&resp->cstate.current_fh);
@@ -1300,6 +1326,11 @@ static struct nfsd4_operation nfsd4_ops[] = {
.op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP,
.op_name = "OP_EXCHANGE_ID",
},
+ [OP_BIND_CONN_TO_SESSION] = {
+ .op_func = (nfsd4op_func)nfsd4_bind_conn_to_session,
+ .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP,
+ .op_name = "OP_BIND_CONN_TO_SESSION",
+ },
[OP_CREATE_SESSION] = {
.op_func = (nfsd4op_func)nfsd4_create_session,
.op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP,
@@ -1320,6 +1351,10 @@ static struct nfsd4_operation nfsd4_ops[] = {
.op_flags = ALLOWED_WITHOUT_FH,
.op_name = "OP_RECLAIM_COMPLETE",
},
+ [OP_SECINFO_NO_NAME] = {
+ .op_func = (nfsd4op_func)nfsd4_secinfo_no_name,
+ .op_name = "OP_SECINFO_NO_NAME",
+ },
};
static const char *nfsd4_op_name(unsigned opnum)
diff --git a/fs/nfsd/nfs4recover.c b/fs/nfsd/nfs4recover.c
index 7e26caa..ffb59ef 100644
--- a/fs/nfsd/nfs4recover.c
+++ b/fs/nfsd/nfs4recover.c
@@ -302,7 +302,6 @@ purge_old(struct dentry *parent, struct dentry *child)
{
int status;
- /* note: we currently use this path only for minorversion 0 */
if (nfs4_has_reclaimed_state(child->d_name.name, false))
return 0;
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index fbd18c3..d98d021 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -230,7 +230,8 @@ alloc_init_deleg(struct nfs4_client *clp, struct nfs4_stateid *stp, struct svc_f
dp->dl_client = clp;
get_nfs4_file(fp);
dp->dl_file = fp;
- nfs4_file_get_access(fp, O_RDONLY);
+ dp->dl_vfs_file = find_readable_file(fp);
+ get_file(dp->dl_vfs_file);
dp->dl_flock = NULL;
dp->dl_type = type;
dp->dl_stateid.si_boot = boot_time;
@@ -252,6 +253,7 @@ nfs4_put_delegation(struct nfs4_delegation *dp)
if (atomic_dec_and_test(&dp->dl_count)) {
dprintk("NFSD: freeing dp %p\n",dp);
put_nfs4_file(dp->dl_file);
+ fput(dp->dl_vfs_file);
kmem_cache_free(deleg_slab, dp);
num_delegations--;
}
@@ -265,12 +267,10 @@ nfs4_put_delegation(struct nfs4_delegation *dp)
static void
nfs4_close_delegation(struct nfs4_delegation *dp)
{
- struct file *filp = find_readable_file(dp->dl_file);
-
dprintk("NFSD: close_delegation dp %p\n",dp);
+ /* XXX: do we even need this check?: */
if (dp->dl_flock)
- vfs_setlease(filp, F_UNLCK, &dp->dl_flock);
- nfs4_file_put_access(dp->dl_file, O_RDONLY);
+ vfs_setlease(dp->dl_vfs_file, F_UNLCK, &dp->dl_flock);
}
/* Called under the state lock. */
@@ -642,6 +642,7 @@ static void nfsd4_conn_lost(struct svc_xpt_user *u)
free_conn(c);
}
spin_unlock(&clp->cl_lock);
+ nfsd4_probe_callback(clp);
}
static struct nfsd4_conn *alloc_conn(struct svc_rqst *rqstp, u32 flags)
@@ -679,15 +680,12 @@ static int nfsd4_register_conn(struct nfsd4_conn *conn)
return register_xpt_user(conn->cn_xprt, &conn->cn_xpt_user);
}
-static __be32 nfsd4_new_conn(struct svc_rqst *rqstp, struct nfsd4_session *ses)
+static __be32 nfsd4_new_conn(struct svc_rqst *rqstp, struct nfsd4_session *ses, u32 dir)
{
struct nfsd4_conn *conn;
- u32 flags = NFS4_CDFC4_FORE;
int ret;
- if (ses->se_flags & SESSION4_BACK_CHAN)
- flags |= NFS4_CDFC4_BACK;
- conn = alloc_conn(rqstp, flags);
+ conn = alloc_conn(rqstp, dir);
if (!conn)
return nfserr_jukebox;
nfsd4_hash_conn(conn, ses);
@@ -698,6 +696,17 @@ static __be32 nfsd4_new_conn(struct svc_rqst *rqstp, struct nfsd4_session *ses)
return nfs_ok;
}
+static __be32 nfsd4_new_conn_from_crses(struct svc_rqst *rqstp, struct nfsd4_session *ses)
+{
+ u32 dir = NFS4_CDFC4_FORE;
+
+ if (ses->se_flags & SESSION4_BACK_CHAN)
+ dir |= NFS4_CDFC4_BACK;
+
+ return nfsd4_new_conn(rqstp, ses, dir);
+}
+
+/* must be called under client_lock */
static void nfsd4_del_conns(struct nfsd4_session *s)
{
struct nfs4_client *clp = s->se_client;
@@ -749,6 +758,8 @@ static struct nfsd4_session *alloc_init_session(struct svc_rqst *rqstp, struct n
*/
slotsize = nfsd4_sanitize_slot_size(fchan->maxresp_cached);
numslots = nfsd4_get_drc_mem(slotsize, fchan->maxreqs);
+ if (numslots < 1)
+ return NULL;
new = alloc_session(slotsize, numslots);
if (!new) {
@@ -769,25 +780,30 @@ static struct nfsd4_session *alloc_init_session(struct svc_rqst *rqstp, struct n
idx = hash_sessionid(&new->se_sessionid);
spin_lock(&client_lock);
list_add(&new->se_hash, &sessionid_hashtbl[idx]);
+ spin_lock(&clp->cl_lock);
list_add(&new->se_perclnt, &clp->cl_sessions);
+ spin_unlock(&clp->cl_lock);
spin_unlock(&client_lock);
- status = nfsd4_new_conn(rqstp, new);
+ status = nfsd4_new_conn_from_crses(rqstp, new);
/* whoops: benny points out, status is ignored! (err, or bogus) */
if (status) {
free_session(&new->se_ref);
return NULL;
}
- if (!clp->cl_cb_session && (cses->flags & SESSION4_BACK_CHAN)) {
+ if (cses->flags & SESSION4_BACK_CHAN) {
struct sockaddr *sa = svc_addr(rqstp);
-
- clp->cl_cb_session = new;
- clp->cl_cb_conn.cb_xprt = rqstp->rq_xprt;
- svc_xprt_get(rqstp->rq_xprt);
+ /*
+ * This is a little silly; with sessions there's no real
+ * use for the callback address. Use the peer address
+ * as a reasonable default for now, but consider fixing
+ * the rpc client not to require an address in the
+ * future:
+ */
rpc_copy_addr((struct sockaddr *)&clp->cl_cb_conn.cb_addr, sa);
clp->cl_cb_conn.cb_addrlen = svc_addr_len(sa);
- nfsd4_probe_callback(clp);
}
+ nfsd4_probe_callback(clp);
return new;
}
@@ -817,7 +833,9 @@ static void
unhash_session(struct nfsd4_session *ses)
{
list_del(&ses->se_hash);
+ spin_lock(&ses->se_client->cl_lock);
list_del(&ses->se_perclnt);
+ spin_unlock(&ses->se_client->cl_lock);
}
/* must be called under the client_lock */
@@ -923,8 +941,10 @@ unhash_client_locked(struct nfs4_client *clp)
mark_client_expired(clp);
list_del(&clp->cl_lru);
+ spin_lock(&clp->cl_lock);
list_for_each_entry(ses, &clp->cl_sessions, se_perclnt)
list_del_init(&ses->se_hash);
+ spin_unlock(&clp->cl_lock);
}
static void
@@ -1051,12 +1071,13 @@ static struct nfs4_client *create_client(struct xdr_netobj name, char *recdir,
memcpy(clp->cl_recdir, recdir, HEXDIR_LEN);
atomic_set(&clp->cl_refcount, 0);
- atomic_set(&clp->cl_cb_set, 0);
+ clp->cl_cb_state = NFSD4_CB_UNKNOWN;
INIT_LIST_HEAD(&clp->cl_idhash);
INIT_LIST_HEAD(&clp->cl_strhash);
INIT_LIST_HEAD(&clp->cl_openowners);
INIT_LIST_HEAD(&clp->cl_delegations);
INIT_LIST_HEAD(&clp->cl_lru);
+ INIT_LIST_HEAD(&clp->cl_callbacks);
spin_lock_init(&clp->cl_lock);
INIT_WORK(&clp->cl_cb_null.cb_work, nfsd4_do_callback_rpc);
clp->cl_time = get_seconds();
@@ -1132,54 +1153,55 @@ find_unconfirmed_client(clientid_t *clid)
return NULL;
}
-/*
- * Return 1 iff clp's clientid establishment method matches the use_exchange_id
- * parameter. Matching is based on the fact the at least one of the
- * EXCHGID4_FLAG_USE_{NON_PNFS,PNFS_MDS,PNFS_DS} flags must be set for v4.1
- *
- * FIXME: we need to unify the clientid namespaces for nfsv4.x
- * and correctly deal with client upgrade/downgrade in EXCHANGE_ID
- * and SET_CLIENTID{,_CONFIRM}
- */
-static inline int
-match_clientid_establishment(struct nfs4_client *clp, bool use_exchange_id)
+static bool clp_used_exchangeid(struct nfs4_client *clp)
{
- bool has_exchange_flags = (clp->cl_exchange_flags != 0);
- return use_exchange_id == has_exchange_flags;
-}
+ return clp->cl_exchange_flags != 0;
+}
static struct nfs4_client *
-find_confirmed_client_by_str(const char *dname, unsigned int hashval,
- bool use_exchange_id)
+find_confirmed_client_by_str(const char *dname, unsigned int hashval)
{
struct nfs4_client *clp;
list_for_each_entry(clp, &conf_str_hashtbl[hashval], cl_strhash) {
- if (same_name(clp->cl_recdir, dname) &&
- match_clientid_establishment(clp, use_exchange_id))
+ if (same_name(clp->cl_recdir, dname))
return clp;
}
return NULL;
}
static struct nfs4_client *
-find_unconfirmed_client_by_str(const char *dname, unsigned int hashval,
- bool use_exchange_id)
+find_unconfirmed_client_by_str(const char *dname, unsigned int hashval)
{
struct nfs4_client *clp;
list_for_each_entry(clp, &unconf_str_hashtbl[hashval], cl_strhash) {
- if (same_name(clp->cl_recdir, dname) &&
- match_clientid_establishment(clp, use_exchange_id))
+ if (same_name(clp->cl_recdir, dname))
return clp;
}
return NULL;
}
+static void rpc_svcaddr2sockaddr(struct sockaddr *sa, unsigned short family, union svc_addr_u *svcaddr)
+{
+ switch (family) {
+ case AF_INET:
+ ((struct sockaddr_in *)sa)->sin_family = AF_INET;
+ ((struct sockaddr_in *)sa)->sin_addr = svcaddr->addr;
+ return;
+ case AF_INET6:
+ ((struct sockaddr_in6 *)sa)->sin6_family = AF_INET6;
+ ((struct sockaddr_in6 *)sa)->sin6_addr = svcaddr->addr6;
+ return;
+ }
+}
+
static void
-gen_callback(struct nfs4_client *clp, struct nfsd4_setclientid *se, u32 scopeid)
+gen_callback(struct nfs4_client *clp, struct nfsd4_setclientid *se, struct svc_rqst *rqstp)
{
struct nfs4_cb_conn *conn = &clp->cl_cb_conn;
+ struct sockaddr *sa = svc_addr(rqstp);
+ u32 scopeid = rpc_get_scope_id(sa);
unsigned short expected_family;
/* Currently, we only support tcp and tcp6 for the callback channel */
@@ -1205,6 +1227,7 @@ gen_callback(struct nfs4_client *clp, struct nfsd4_setclientid *se, u32 scopeid)
conn->cb_prog = se->se_callback_prog;
conn->cb_ident = se->se_callback_ident;
+ rpc_svcaddr2sockaddr((struct sockaddr *)&conn->cb_saddr, expected_family, &rqstp->rq_daddr);
return;
out_err:
conn->cb_addr.ss_family = AF_UNSPEC;
@@ -1344,7 +1367,7 @@ nfsd4_exchange_id(struct svc_rqst *rqstp,
case SP4_NONE:
break;
case SP4_SSV:
- return nfserr_encr_alg_unsupp;
+ return nfserr_serverfault;
default:
BUG(); /* checked by xdr code */
case SP4_MACH_CRED:
@@ -1361,8 +1384,12 @@ nfsd4_exchange_id(struct svc_rqst *rqstp,
nfs4_lock_state();
status = nfs_ok;
- conf = find_confirmed_client_by_str(dname, strhashval, true);
+ conf = find_confirmed_client_by_str(dname, strhashval);
if (conf) {
+ if (!clp_used_exchangeid(conf)) {
+ status = nfserr_clid_inuse; /* XXX: ? */
+ goto out;
+ }
if (!same_verf(&verf, &conf->cl_verifier)) {
/* 18.35.4 case 8 */
if (exid->flags & EXCHGID4_FLAG_UPD_CONFIRMED_REC_A) {
@@ -1403,7 +1430,7 @@ nfsd4_exchange_id(struct svc_rqst *rqstp,
goto out;
}
- unconf = find_unconfirmed_client_by_str(dname, strhashval, true);
+ unconf = find_unconfirmed_client_by_str(dname, strhashval);
if (unconf) {
/*
* Possible retry or client restart. Per 18.35.4 case 4,
@@ -1560,6 +1587,8 @@ nfsd4_create_session(struct svc_rqst *rqstp,
status = nfs_ok;
memcpy(cr_ses->sessionid.data, new->se_sessionid.data,
NFS4_MAX_SESSIONID_LEN);
+ memcpy(&cr_ses->fore_channel, &new->se_fchannel,
+ sizeof(struct nfsd4_channel_attrs));
cs_slot->sl_seqid++;
cr_ses->seqid = cs_slot->sl_seqid;
@@ -1581,6 +1610,45 @@ static bool nfsd4_last_compound_op(struct svc_rqst *rqstp)
return argp->opcnt == resp->opcnt;
}
+static __be32 nfsd4_map_bcts_dir(u32 *dir)
+{
+ switch (*dir) {
+ case NFS4_CDFC4_FORE:
+ case NFS4_CDFC4_BACK:
+ return nfs_ok;
+ case NFS4_CDFC4_FORE_OR_BOTH:
+ case NFS4_CDFC4_BACK_OR_BOTH:
+ *dir = NFS4_CDFC4_BOTH;
+ return nfs_ok;
+ };
+ return nfserr_inval;
+}
+
+__be32 nfsd4_bind_conn_to_session(struct svc_rqst *rqstp,
+ struct nfsd4_compound_state *cstate,
+ struct nfsd4_bind_conn_to_session *bcts)
+{
+ __be32 status;
+
+ if (!nfsd4_last_compound_op(rqstp))
+ return nfserr_not_only_op;
+ spin_lock(&client_lock);
+ cstate->session = find_in_sessionid_hashtbl(&bcts->sessionid);
+ /* Sorta weird: we only need the refcnt'ing because new_conn acquires
+ * client_lock iself: */
+ if (cstate->session) {
+ nfsd4_get_session(cstate->session);
+ atomic_inc(&cstate->session->se_client->cl_refcount);
+ }
+ spin_unlock(&client_lock);
+ if (!cstate->session)
+ return nfserr_badsession;
+
+ status = nfsd4_map_bcts_dir(&bcts->dir);
+ nfsd4_new_conn(rqstp, cstate->session, bcts->dir);
+ return nfs_ok;
+}
+
static bool nfsd4_compound_in_session(struct nfsd4_session *session, struct nfs4_sessionid *sid)
{
if (!session)
@@ -1619,8 +1687,7 @@ nfsd4_destroy_session(struct svc_rqst *r,
spin_unlock(&client_lock);
nfs4_lock_state();
- /* wait for callbacks */
- nfsd4_shutdown_callback(ses->se_client);
+ nfsd4_probe_callback_sync(ses->se_client);
nfs4_unlock_state();
nfsd4_del_conns(ses);
@@ -1733,8 +1800,12 @@ nfsd4_sequence(struct svc_rqst *rqstp,
out:
/* Hold a session reference until done processing the compound. */
if (cstate->session) {
+ struct nfs4_client *clp = session->se_client;
+
nfsd4_get_session(cstate->session);
- atomic_inc(&session->se_client->cl_refcount);
+ atomic_inc(&clp->cl_refcount);
+ if (clp->cl_cb_state == NFSD4_CB_DOWN)
+ seq->status_flags |= SEQ4_STATUS_CB_PATH_DOWN;
}
kfree(conn);
spin_unlock(&client_lock);
@@ -1775,7 +1846,6 @@ __be32
nfsd4_setclientid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
struct nfsd4_setclientid *setclid)
{
- struct sockaddr *sa = svc_addr(rqstp);
struct xdr_netobj clname = {
.len = setclid->se_namelen,
.data = setclid->se_name,
@@ -1801,10 +1871,12 @@ nfsd4_setclientid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
strhashval = clientstr_hashval(dname);
nfs4_lock_state();
- conf = find_confirmed_client_by_str(dname, strhashval, false);
+ conf = find_confirmed_client_by_str(dname, strhashval);
if (conf) {
/* RFC 3530 14.2.33 CASE 0: */
status = nfserr_clid_inuse;
+ if (clp_used_exchangeid(conf))
+ goto out;
if (!same_creds(&conf->cl_cred, &rqstp->rq_cred)) {
char addr_str[INET6_ADDRSTRLEN];
rpc_ntop((struct sockaddr *) &conf->cl_addr, addr_str,
@@ -1819,7 +1891,7 @@ nfsd4_setclientid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
* has a description of SETCLIENTID request processing consisting
* of 5 bullet points, labeled as CASE0 - CASE4 below.
*/
- unconf = find_unconfirmed_client_by_str(dname, strhashval, false);
+ unconf = find_unconfirmed_client_by_str(dname, strhashval);
status = nfserr_resource;
if (!conf) {
/*
@@ -1876,7 +1948,7 @@ nfsd4_setclientid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
* for consistent minorversion use throughout:
*/
new->cl_minorversion = 0;
- gen_callback(new, setclid, rpc_get_scope_id(sa));
+ gen_callback(new, setclid, rqstp);
add_to_unconfirmed(new, strhashval);
setclid->se_clientid.cl_boot = new->cl_clientid.cl_boot;
setclid->se_clientid.cl_id = new->cl_clientid.cl_id;
@@ -1935,7 +2007,6 @@ nfsd4_setclientid_confirm(struct svc_rqst *rqstp,
if (!same_creds(&conf->cl_cred, &unconf->cl_cred))
status = nfserr_clid_inuse;
else {
- atomic_set(&conf->cl_cb_set, 0);
nfsd4_change_callback(conf, &unconf->cl_cb_conn);
nfsd4_probe_callback(conf);
expire_client(unconf);
@@ -1964,7 +2035,7 @@ nfsd4_setclientid_confirm(struct svc_rqst *rqstp,
unsigned int hash =
clientstr_hashval(unconf->cl_recdir);
conf = find_confirmed_client_by_str(unconf->cl_recdir,
- hash, false);
+ hash);
if (conf) {
nfsd4_remove_clid_dir(conf);
expire_client(conf);
@@ -2300,41 +2371,6 @@ void nfsd_break_deleg_cb(struct file_lock *fl)
nfsd4_cb_recall(dp);
}
-/*
- * The file_lock is being reapd.
- *
- * Called by locks_free_lock() with lock_flocks() held.
- */
-static
-void nfsd_release_deleg_cb(struct file_lock *fl)
-{
- struct nfs4_delegation *dp = (struct nfs4_delegation *)fl->fl_owner;
-
- dprintk("NFSD nfsd_release_deleg_cb: fl %p dp %p dl_count %d\n", fl,dp, atomic_read(&dp->dl_count));
-
- if (!(fl->fl_flags & FL_LEASE) || !dp)
- return;
- dp->dl_flock = NULL;
-}
-
-/*
- * Called from setlease() with lock_flocks() held
- */
-static
-int nfsd_same_client_deleg_cb(struct file_lock *onlist, struct file_lock *try)
-{
- struct nfs4_delegation *onlistd =
- (struct nfs4_delegation *)onlist->fl_owner;
- struct nfs4_delegation *tryd =
- (struct nfs4_delegation *)try->fl_owner;
-
- if (onlist->fl_lmops != try->fl_lmops)
- return 0;
-
- return onlistd->dl_client == tryd->dl_client;
-}
-
-
static
int nfsd_change_deleg_cb(struct file_lock **onlist, int arg)
{
@@ -2346,8 +2382,6 @@ int nfsd_change_deleg_cb(struct file_lock **onlist, int arg)
static const struct lock_manager_operations nfsd_lease_mng_ops = {
.fl_break = nfsd_break_deleg_cb,
- .fl_release_private = nfsd_release_deleg_cb,
- .fl_mylease = nfsd_same_client_deleg_cb,
.fl_change = nfsd_change_deleg_cb,
};
@@ -2514,8 +2548,6 @@ static __be32 nfs4_get_vfs_file(struct svc_rqst *rqstp, struct nfs4_file
if (!fp->fi_fds[oflag]) {
status = nfsd_open(rqstp, cur_fh, S_IFREG, access,
&fp->fi_fds[oflag]);
- if (status == nfserr_dropit)
- status = nfserr_jukebox;
if (status)
return status;
}
@@ -2596,6 +2628,19 @@ nfs4_set_claim_prev(struct nfsd4_open *open)
open->op_stateowner->so_client->cl_firststate = 1;
}
+/* Should we give out recallable state?: */
+static bool nfsd4_cb_channel_good(struct nfs4_client *clp)
+{
+ if (clp->cl_cb_state == NFSD4_CB_UP)
+ return true;
+ /*
+ * In the sessions case, since we don't have to establish a
+ * separate connection for callbacks, we assume it's OK
+ * until we hear otherwise:
+ */
+ return clp->cl_minorversion && clp->cl_cb_state == NFSD4_CB_UNKNOWN;
+}
+
/*
* Attempt to hand out a delegation.
*/
@@ -2604,10 +2649,11 @@ nfs4_open_delegation(struct svc_fh *fh, struct nfsd4_open *open, struct nfs4_sta
{
struct nfs4_delegation *dp;
struct nfs4_stateowner *sop = stp->st_stateowner;
- int cb_up = atomic_read(&sop->so_client->cl_cb_set);
+ int cb_up;
struct file_lock *fl;
int status, flag = 0;
+ cb_up = nfsd4_cb_channel_good(sop->so_client);
flag = NFS4_OPEN_DELEGATE_NONE;
open->op_recall = 0;
switch (open->op_claim_type) {
@@ -2655,7 +2701,7 @@ nfs4_open_delegation(struct svc_fh *fh, struct nfsd4_open *open, struct nfs4_sta
dp->dl_flock = fl;
/* vfs_setlease checks to see if delegation should be handed out.
- * the lock_manager callbacks fl_mylease and fl_change are used
+ * the lock_manager callback fl_change is used
*/
if ((status = vfs_setlease(fl->fl_file, fl->fl_type, &fl))) {
dprintk("NFSD: setlease failed [%d], no delegation\n", status);
@@ -2794,7 +2840,7 @@ nfsd4_renew(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
renew_client(clp);
status = nfserr_cb_path_down;
if (!list_empty(&clp->cl_delegations)
- && !atomic_read(&clp->cl_cb_set))
+ && clp->cl_cb_state != NFSD4_CB_UP)
goto out;
status = nfs_ok;
out:
@@ -3081,9 +3127,10 @@ nfs4_preprocess_stateid_op(struct nfsd4_compound_state *cstate,
if (status)
goto out;
renew_client(dp->dl_client);
- if (filpp)
+ if (filpp) {
*filpp = find_readable_file(dp->dl_file);
- BUG_ON(!*filpp);
+ BUG_ON(!*filpp);
+ }
} else { /* open or lock stateid */
stp = find_stateid(stateid, flags);
if (!stp)
@@ -4107,7 +4154,7 @@ nfs4_has_reclaimed_state(const char *name, bool use_exchange_id)
unsigned int strhashval = clientstr_hashval(name);
struct nfs4_client *clp;
- clp = find_confirmed_client_by_str(name, strhashval, use_exchange_id);
+ clp = find_confirmed_client_by_str(name, strhashval);
return clp ? 1 : 0;
}
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index f35a94a..956629b 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -44,13 +44,14 @@
#include <linux/namei.h>
#include <linux/statfs.h>
#include <linux/utsname.h>
-#include <linux/nfsd_idmap.h>
-#include <linux/nfs4_acl.h>
#include <linux/sunrpc/svcauth_gss.h>
+#include "idmap.h"
+#include "acl.h"
#include "xdr4.h"
#include "vfs.h"
+
#define NFSDDBG_FACILITY NFSDDBG_XDR
/*
@@ -288,17 +289,17 @@ nfsd4_decode_fattr(struct nfsd4_compoundargs *argp, u32 *bmval,
len += XDR_QUADLEN(dummy32) << 2;
READMEM(buf, dummy32);
ace->whotype = nfs4_acl_get_whotype(buf, dummy32);
- host_err = 0;
+ status = nfs_ok;
if (ace->whotype != NFS4_ACL_WHO_NAMED)
ace->who = 0;
else if (ace->flag & NFS4_ACE_IDENTIFIER_GROUP)
- host_err = nfsd_map_name_to_gid(argp->rqstp,
+ status = nfsd_map_name_to_gid(argp->rqstp,
buf, dummy32, &ace->who);
else
- host_err = nfsd_map_name_to_uid(argp->rqstp,
+ status = nfsd_map_name_to_uid(argp->rqstp,
buf, dummy32, &ace->who);
- if (host_err)
- goto out_nfserr;
+ if (status)
+ return status;
}
} else
*acl = NULL;
@@ -420,6 +421,21 @@ nfsd4_decode_access(struct nfsd4_compoundargs *argp, struct nfsd4_access *access
DECODE_TAIL;
}
+static __be32 nfsd4_decode_bind_conn_to_session(struct nfsd4_compoundargs *argp, struct nfsd4_bind_conn_to_session *bcts)
+{
+ DECODE_HEAD;
+ u32 dummy;
+
+ READ_BUF(NFS4_MAX_SESSIONID_LEN + 8);
+ COPYMEM(bcts->sessionid.data, NFS4_MAX_SESSIONID_LEN);
+ READ32(bcts->dir);
+ /* XXX: Perhaps Tom Tucker could help us figure out how we
+ * should be using ctsa_use_conn_in_rdma_mode: */
+ READ32(dummy);
+
+ DECODE_TAIL;
+}
+
static __be32
nfsd4_decode_close(struct nfsd4_compoundargs *argp, struct nfsd4_close *close)
{
@@ -847,6 +863,17 @@ nfsd4_decode_secinfo(struct nfsd4_compoundargs *argp,
}
static __be32
+nfsd4_decode_secinfo_no_name(struct nfsd4_compoundargs *argp,
+ struct nfsd4_secinfo_no_name *sin)
+{
+ DECODE_HEAD;
+
+ READ_BUF(4);
+ READ32(sin->sin_style);
+ DECODE_TAIL;
+}
+
+static __be32
nfsd4_decode_setattr(struct nfsd4_compoundargs *argp, struct nfsd4_setattr *setattr)
{
__be32 status;
@@ -1005,7 +1032,7 @@ static __be32
nfsd4_decode_exchange_id(struct nfsd4_compoundargs *argp,
struct nfsd4_exchange_id *exid)
{
- int dummy;
+ int dummy, tmp;
DECODE_HEAD;
READ_BUF(NFS4_VERIFIER_SIZE);
@@ -1053,15 +1080,23 @@ nfsd4_decode_exchange_id(struct nfsd4_compoundargs *argp,
/* ssp_hash_algs<> */
READ_BUF(4);
- READ32(dummy);
- READ_BUF(dummy);
- p += XDR_QUADLEN(dummy);
+ READ32(tmp);
+ while (tmp--) {
+ READ_BUF(4);
+ READ32(dummy);
+ READ_BUF(dummy);
+ p += XDR_QUADLEN(dummy);
+ }
/* ssp_encr_algs<> */
READ_BUF(4);
- READ32(dummy);
- READ_BUF(dummy);
- p += XDR_QUADLEN(dummy);
+ READ32(tmp);
+ while (tmp--) {
+ READ_BUF(4);
+ READ32(dummy);
+ READ_BUF(dummy);
+ p += XDR_QUADLEN(dummy);
+ }
/* ssp_window and ssp_num_gss_handles */
READ_BUF(8);
@@ -1339,7 +1374,7 @@ static nfsd4_dec nfsd41_dec_ops[] = {
/* new operations for NFSv4.1 */
[OP_BACKCHANNEL_CTL] = (nfsd4_dec)nfsd4_decode_notsupp,
- [OP_BIND_CONN_TO_SESSION]= (nfsd4_dec)nfsd4_decode_notsupp,
+ [OP_BIND_CONN_TO_SESSION]= (nfsd4_dec)nfsd4_decode_bind_conn_to_session,
[OP_EXCHANGE_ID] = (nfsd4_dec)nfsd4_decode_exchange_id,
[OP_CREATE_SESSION] = (nfsd4_dec)nfsd4_decode_create_session,
[OP_DESTROY_SESSION] = (nfsd4_dec)nfsd4_decode_destroy_session,
@@ -1350,7 +1385,7 @@ static nfsd4_dec nfsd41_dec_ops[] = {
[OP_LAYOUTCOMMIT] = (nfsd4_dec)nfsd4_decode_notsupp,
[OP_LAYOUTGET] = (nfsd4_dec)nfsd4_decode_notsupp,
[OP_LAYOUTRETURN] = (nfsd4_dec)nfsd4_decode_notsupp,
- [OP_SECINFO_NO_NAME] = (nfsd4_dec)nfsd4_decode_notsupp,
+ [OP_SECINFO_NO_NAME] = (nfsd4_dec)nfsd4_decode_secinfo_no_name,
[OP_SEQUENCE] = (nfsd4_dec)nfsd4_decode_sequence,
[OP_SET_SSV] = (nfsd4_dec)nfsd4_decode_notsupp,
[OP_TEST_STATEID] = (nfsd4_dec)nfsd4_decode_notsupp,
@@ -2309,8 +2344,6 @@ nfsd4_encode_dirent(void *ccdv, const char *name, int namlen,
case nfserr_resource:
nfserr = nfserr_toosmall;
goto fail;
- case nfserr_dropit:
- goto fail;
case nfserr_noent:
goto skip_entry;
default:
@@ -2365,6 +2398,21 @@ nfsd4_encode_access(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_
return nfserr;
}
+static __be32 nfsd4_encode_bind_conn_to_session(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_bind_conn_to_session *bcts)
+{
+ __be32 *p;
+
+ if (!nfserr) {
+ RESERVE_SPACE(NFS4_MAX_SESSIONID_LEN + 8);
+ WRITEMEM(bcts->sessionid.data, NFS4_MAX_SESSIONID_LEN);
+ WRITE32(bcts->dir);
+ /* XXX: ? */
+ WRITE32(0);
+ ADJUST_ARGS();
+ }
+ return nfserr;
+}
+
static __be32
nfsd4_encode_close(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_close *close)
{
@@ -2826,11 +2874,10 @@ nfsd4_encode_rename(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_
}
static __be32
-nfsd4_encode_secinfo(struct nfsd4_compoundres *resp, __be32 nfserr,
- struct nfsd4_secinfo *secinfo)
+nfsd4_do_encode_secinfo(struct nfsd4_compoundres *resp,
+ __be32 nfserr,struct svc_export *exp)
{
int i = 0;
- struct svc_export *exp = secinfo->si_exp;
u32 nflavs;
struct exp_flavor_info *flavs;
struct exp_flavor_info def_flavs[2];
@@ -2892,6 +2939,20 @@ out:
return nfserr;
}
+static __be32
+nfsd4_encode_secinfo(struct nfsd4_compoundres *resp, __be32 nfserr,
+ struct nfsd4_secinfo *secinfo)
+{
+ return nfsd4_do_encode_secinfo(resp, nfserr, secinfo->si_exp);
+}
+
+static __be32
+nfsd4_encode_secinfo_no_name(struct nfsd4_compoundres *resp, __be32 nfserr,
+ struct nfsd4_secinfo_no_name *secinfo)
+{
+ return nfsd4_do_encode_secinfo(resp, nfserr, secinfo->sin_exp);
+}
+
/*
* The SETATTR encode routine is special -- it always encodes a bitmap,
* regardless of the error status.
@@ -3076,13 +3137,9 @@ nfsd4_encode_sequence(struct nfsd4_compoundres *resp, int nfserr,
WRITE32(seq->seqid);
WRITE32(seq->slotid);
WRITE32(seq->maxslots);
- /*
- * FIXME: for now:
- * target_maxslots = maxslots
- * status_flags = 0
- */
+ /* For now: target_maxslots = maxslots */
WRITE32(seq->maxslots);
- WRITE32(0);
+ WRITE32(seq->status_flags);
ADJUST_ARGS();
resp->cstate.datap = p; /* DRC cache data pointer */
@@ -3143,7 +3200,7 @@ static nfsd4_enc nfsd4_enc_ops[] = {
/* NFSv4.1 operations */
[OP_BACKCHANNEL_CTL] = (nfsd4_enc)nfsd4_encode_noop,
- [OP_BIND_CONN_TO_SESSION] = (nfsd4_enc)nfsd4_encode_noop,
+ [OP_BIND_CONN_TO_SESSION] = (nfsd4_enc)nfsd4_encode_bind_conn_to_session,
[OP_EXCHANGE_ID] = (nfsd4_enc)nfsd4_encode_exchange_id,
[OP_CREATE_SESSION] = (nfsd4_enc)nfsd4_encode_create_session,
[OP_DESTROY_SESSION] = (nfsd4_enc)nfsd4_encode_destroy_session,
@@ -3154,7 +3211,7 @@ static nfsd4_enc nfsd4_enc_ops[] = {
[OP_LAYOUTCOMMIT] = (nfsd4_enc)nfsd4_encode_noop,
[OP_LAYOUTGET] = (nfsd4_enc)nfsd4_encode_noop,
[OP_LAYOUTRETURN] = (nfsd4_enc)nfsd4_encode_noop,
- [OP_SECINFO_NO_NAME] = (nfsd4_enc)nfsd4_encode_noop,
+ [OP_SECINFO_NO_NAME] = (nfsd4_enc)nfsd4_encode_secinfo_no_name,
[OP_SEQUENCE] = (nfsd4_enc)nfsd4_encode_sequence,
[OP_SET_SSV] = (nfsd4_enc)nfsd4_encode_noop,
[OP_TEST_STATEID] = (nfsd4_enc)nfsd4_encode_noop,
diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c
index 4514ebb..33b3e2b 100644
--- a/fs/nfsd/nfsctl.c
+++ b/fs/nfsd/nfsctl.c
@@ -8,12 +8,12 @@
#include <linux/namei.h>
#include <linux/ctype.h>
-#include <linux/nfsd_idmap.h>
#include <linux/sunrpc/svcsock.h>
#include <linux/nfsd/syscall.h>
#include <linux/lockd/lockd.h>
#include <linux/sunrpc/clnt.h>
+#include "idmap.h"
#include "nfsd.h"
#include "cache.h"
@@ -127,6 +127,7 @@ static ssize_t nfsctl_transaction_write(struct file *file, const char __user *bu
static ssize_t nfsctl_transaction_read(struct file *file, char __user *buf, size_t size, loff_t *pos)
{
+#ifdef CONFIG_NFSD_DEPRECATED
static int warned;
if (file->f_dentry->d_name.name[0] == '.' && !warned) {
printk(KERN_INFO
@@ -135,6 +136,7 @@ static ssize_t nfsctl_transaction_read(struct file *file, char __user *buf, size
current->comm, file->f_dentry->d_name.name);
warned = 1;
}
+#endif
if (! file->private_data) {
/* An attempt to read a transaction file without writing
* causes a 0-byte write so that the file can return
diff --git a/fs/nfsd/nfsd.h b/fs/nfsd/nfsd.h
index 6b641cf..7ecfa24 100644
--- a/fs/nfsd/nfsd.h
+++ b/fs/nfsd/nfsd.h
@@ -158,6 +158,7 @@ void nfsd_lockd_shutdown(void);
#define nfserr_attrnotsupp cpu_to_be32(NFSERR_ATTRNOTSUPP)
#define nfserr_bad_xdr cpu_to_be32(NFSERR_BAD_XDR)
#define nfserr_openmode cpu_to_be32(NFSERR_OPENMODE)
+#define nfserr_badowner cpu_to_be32(NFSERR_BADOWNER)
#define nfserr_locks_held cpu_to_be32(NFSERR_LOCKS_HELD)
#define nfserr_op_illegal cpu_to_be32(NFSERR_OP_ILLEGAL)
#define nfserr_grace cpu_to_be32(NFSERR_GRACE)
diff --git a/fs/nfsd/nfsproc.c b/fs/nfsd/nfsproc.c
index 08e1726..e15dc45 100644
--- a/fs/nfsd/nfsproc.c
+++ b/fs/nfsd/nfsproc.c
@@ -735,9 +735,9 @@ nfserrno (int errno)
{ nfserr_stale, -ESTALE },
{ nfserr_jukebox, -ETIMEDOUT },
{ nfserr_jukebox, -ERESTARTSYS },
- { nfserr_dropit, -EAGAIN },
- { nfserr_dropit, -ENOMEM },
- { nfserr_badname, -ESRCH },
+ { nfserr_jukebox, -EAGAIN },
+ { nfserr_jukebox, -EWOULDBLOCK },
+ { nfserr_jukebox, -ENOMEM },
{ nfserr_io, -ETXTBSY },
{ nfserr_notsupp, -EOPNOTSUPP },
{ nfserr_toosmall, -ETOOSMALL },
diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c
index 2bae1d8..18743c4 100644
--- a/fs/nfsd/nfssvc.c
+++ b/fs/nfsd/nfssvc.c
@@ -608,7 +608,7 @@ nfsd_dispatch(struct svc_rqst *rqstp, __be32 *statp)
/* Now call the procedure handler, and encode NFS status. */
nfserr = proc->pc_func(rqstp, rqstp->rq_argp, rqstp->rq_resp);
nfserr = map_new_errors(rqstp->rq_vers, nfserr);
- if (nfserr == nfserr_dropit) {
+ if (nfserr == nfserr_dropit || rqstp->rq_dropme) {
dprintk("nfsd: Dropping request; may be revisited later\n");
nfsd_cache_update(rqstp, RC_NOCACHE, NULL);
return 0;
diff --git a/fs/nfsd/state.h b/fs/nfsd/state.h
index 39adc27..3074656 100644
--- a/fs/nfsd/state.h
+++ b/fs/nfsd/state.h
@@ -68,10 +68,12 @@ typedef struct {
struct nfsd4_callback {
void *cb_op;
struct nfs4_client *cb_clp;
+ struct list_head cb_per_client;
u32 cb_minorversion;
struct rpc_message cb_msg;
const struct rpc_call_ops *cb_ops;
struct work_struct cb_work;
+ bool cb_done;
};
struct nfs4_delegation {
@@ -81,6 +83,7 @@ struct nfs4_delegation {
atomic_t dl_count; /* ref count */
struct nfs4_client *dl_client;
struct nfs4_file *dl_file;
+ struct file *dl_vfs_file;
struct file_lock *dl_flock;
u32 dl_type;
time_t dl_time;
@@ -95,6 +98,7 @@ struct nfs4_delegation {
struct nfs4_cb_conn {
/* SETCLIENTID info */
struct sockaddr_storage cb_addr;
+ struct sockaddr_storage cb_saddr;
size_t cb_addrlen;
u32 cb_prog; /* used only in 4.0 case;
per-session otherwise */
@@ -146,6 +150,11 @@ struct nfsd4_create_session {
u32 gid;
};
+struct nfsd4_bind_conn_to_session {
+ struct nfs4_sessionid sessionid;
+ u32 dir;
+};
+
/* The single slot clientid cache structure */
struct nfsd4_clid_slot {
u32 sl_seqid;
@@ -235,9 +244,13 @@ struct nfs4_client {
unsigned long cl_cb_flags;
struct rpc_clnt *cl_cb_client;
u32 cl_cb_ident;
- atomic_t cl_cb_set;
+#define NFSD4_CB_UP 0
+#define NFSD4_CB_UNKNOWN 1
+#define NFSD4_CB_DOWN 2
+ int cl_cb_state;
struct nfsd4_callback cl_cb_null;
struct nfsd4_session *cl_cb_session;
+ struct list_head cl_callbacks; /* list of in-progress callbacks */
/* for all client information that callback code might need: */
spinlock_t cl_lock;
@@ -454,6 +467,7 @@ extern __be32 nfs4_check_open_reclaim(clientid_t *clid);
extern void nfs4_free_stateowner(struct kref *kref);
extern int set_callback_cred(void);
extern void nfsd4_probe_callback(struct nfs4_client *clp);
+extern void nfsd4_probe_callback_sync(struct nfs4_client *clp);
extern void nfsd4_change_callback(struct nfs4_client *clp, struct nfs4_cb_conn *);
extern void nfsd4_do_callback_rpc(struct work_struct *);
extern void nfsd4_cb_recall(struct nfs4_delegation *dp);
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index 230b79f..a3c7f70 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -1,4 +1,3 @@
-#define MSNFS /* HACK HACK */
/*
* File operations used by nfsd. Some of these have been ripped from
* other parts of the kernel because they weren't exported, others
@@ -35,8 +34,8 @@
#endif /* CONFIG_NFSD_V3 */
#ifdef CONFIG_NFSD_V4
-#include <linux/nfs4_acl.h>
-#include <linux/nfsd_idmap.h>
+#include "acl.h"
+#include "idmap.h"
#endif /* CONFIG_NFSD_V4 */
#include "nfsd.h"
@@ -273,6 +272,13 @@ out:
return err;
}
+static int nfsd_break_lease(struct inode *inode)
+{
+ if (!S_ISREG(inode->i_mode))
+ return 0;
+ return break_lease(inode, O_WRONLY | O_NONBLOCK);
+}
+
/*
* Commit metadata changes to stable storage.
*/
@@ -375,16 +381,6 @@ nfsd_setattr(struct svc_rqst *rqstp, struct svc_fh *fhp, struct iattr *iap,
goto out;
}
- /*
- * If we are changing the size of the file, then
- * we need to break all leases.
- */
- host_err = break_lease(inode, O_WRONLY | O_NONBLOCK);
- if (host_err == -EWOULDBLOCK)
- host_err = -ETIMEDOUT;
- if (host_err) /* ENOMEM or EWOULDBLOCK */
- goto out_nfserr;
-
host_err = get_write_access(inode);
if (host_err)
goto out_nfserr;
@@ -425,7 +421,11 @@ nfsd_setattr(struct svc_rqst *rqstp, struct svc_fh *fhp, struct iattr *iap,
err = nfserr_notsync;
if (!check_guard || guardtime == inode->i_ctime.tv_sec) {
+ host_err = nfsd_break_lease(inode);
+ if (host_err)
+ goto out_nfserr;
fh_lock(fhp);
+
host_err = notify_change(dentry, iap);
err = nfserrno(host_err);
fh_unlock(fhp);
@@ -752,8 +752,6 @@ nfsd_open(struct svc_rqst *rqstp, struct svc_fh *fhp, int type,
*/
if (!(access & NFSD_MAY_NOT_BREAK_LEASE))
host_err = break_lease(inode, O_NONBLOCK | ((access & NFSD_MAY_WRITE) ? O_WRONLY : 0));
- if (host_err == -EWOULDBLOCK)
- host_err = -ETIMEDOUT;
if (host_err) /* NOMEM or WOULDBLOCK */
goto out_nfserr;
@@ -874,15 +872,6 @@ static int nfsd_direct_splice_actor(struct pipe_inode_info *pipe,
return __splice_from_pipe(pipe, sd, nfsd_splice_actor);
}
-static inline int svc_msnfs(struct svc_fh *ffhp)
-{
-#ifdef MSNFS
- return (ffhp->fh_export->ex_flags & NFSEXP_MSNFS);
-#else
- return 0;
-#endif
-}
-
static __be32
nfsd_vfs_read(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file,
loff_t offset, struct kvec *vec, int vlen, unsigned long *count)
@@ -895,9 +884,6 @@ nfsd_vfs_read(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file,
err = nfserr_perm;
inode = file->f_path.dentry->d_inode;
- if (svc_msnfs(fhp) && !lock_may_read(inode, offset, *count))
- goto out;
-
if (file->f_op->splice_read && rqstp->rq_splice_ok) {
struct splice_desc sd = {
.len = 0,
@@ -922,7 +908,6 @@ nfsd_vfs_read(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file,
fsnotify_access(file);
} else
err = nfserrno(host_err);
-out:
return err;
}
@@ -987,14 +972,6 @@ nfsd_vfs_write(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file,
int stable = *stablep;
int use_wgather;
-#ifdef MSNFS
- err = nfserr_perm;
-
- if ((fhp->fh_export->ex_flags & NFSEXP_MSNFS) &&
- (!lock_may_write(file->f_path.dentry->d_inode, offset, *cnt)))
- goto out;
-#endif
-
dentry = file->f_path.dentry;
inode = dentry->d_inode;
exp = fhp->fh_export;
@@ -1045,7 +1022,6 @@ out_nfserr:
err = 0;
else
err = nfserrno(host_err);
-out:
return err;
}
@@ -1665,6 +1641,12 @@ nfsd_link(struct svc_rqst *rqstp, struct svc_fh *ffhp,
err = nfserrno(host_err);
goto out_dput;
}
+ err = nfserr_noent;
+ if (!dold->d_inode)
+ goto out_drop_write;
+ host_err = nfsd_break_lease(dold->d_inode);
+ if (host_err)
+ goto out_drop_write;
host_err = vfs_link(dold, dirp, dnew);
if (!host_err) {
err = nfserrno(commit_metadata(ffhp));
@@ -1676,6 +1658,7 @@ nfsd_link(struct svc_rqst *rqstp, struct svc_fh *ffhp,
else
err = nfserrno(host_err);
}
+out_drop_write:
mnt_drop_write(tfhp->fh_export->ex_path.mnt);
out_dput:
dput(dnew);
@@ -1750,12 +1733,6 @@ nfsd_rename(struct svc_rqst *rqstp, struct svc_fh *ffhp, char *fname, int flen,
if (ndentry == trap)
goto out_dput_new;
- if (svc_msnfs(ffhp) &&
- ((odentry->d_count > 1) || (ndentry->d_count > 1))) {
- host_err = -EPERM;
- goto out_dput_new;
- }
-
host_err = -EXDEV;
if (ffhp->fh_export->ex_path.mnt != tfhp->fh_export->ex_path.mnt)
goto out_dput_new;
@@ -1763,15 +1740,17 @@ nfsd_rename(struct svc_rqst *rqstp, struct svc_fh *ffhp, char *fname, int flen,
if (host_err)
goto out_dput_new;
+ host_err = nfsd_break_lease(odentry->d_inode);
+ if (host_err)
+ goto out_drop_write;
host_err = vfs_rename(fdir, odentry, tdir, ndentry);
if (!host_err) {
host_err = commit_metadata(tfhp);
if (!host_err)
host_err = commit_metadata(ffhp);
}
-
+out_drop_write:
mnt_drop_write(ffhp->fh_export->ex_path.mnt);
-
out_dput_new:
dput(ndentry);
out_dput_old:
@@ -1834,18 +1813,14 @@ nfsd_unlink(struct svc_rqst *rqstp, struct svc_fh *fhp, int type,
if (host_err)
goto out_nfserr;
- if (type != S_IFDIR) { /* It's UNLINK */
-#ifdef MSNFS
- if ((fhp->fh_export->ex_flags & NFSEXP_MSNFS) &&
- (rdentry->d_count > 1)) {
- host_err = -EPERM;
- } else
-#endif
+ host_err = nfsd_break_lease(rdentry->d_inode);
+ if (host_err)
+ goto out_put;
+ if (type != S_IFDIR)
host_err = vfs_unlink(dirp, rdentry);
- } else { /* It's RMDIR */
+ else
host_err = vfs_rmdir(dirp, rdentry);
- }
-
+out_put:
dput(rdentry);
if (!host_err)
diff --git a/fs/nfsd/xdr4.h b/fs/nfsd/xdr4.h
index 60fce3d..366401e 100644
--- a/fs/nfsd/xdr4.h
+++ b/fs/nfsd/xdr4.h
@@ -311,6 +311,11 @@ struct nfsd4_secinfo {
struct svc_export *si_exp; /* response */
};
+struct nfsd4_secinfo_no_name {
+ u32 sin_style; /* request */
+ struct svc_export *sin_exp; /* response */
+};
+
struct nfsd4_setattr {
stateid_t sa_stateid; /* request */
u32 sa_bmval[3]; /* request */
@@ -373,8 +378,8 @@ struct nfsd4_sequence {
u32 cachethis; /* request */
#if 0
u32 target_maxslots; /* response */
- u32 status_flags; /* response */
#endif /* not yet */
+ u32 status_flags; /* response */
};
struct nfsd4_destroy_session {
@@ -422,6 +427,7 @@ struct nfsd4_op {
/* NFSv4.1 */
struct nfsd4_exchange_id exchange_id;
+ struct nfsd4_bind_conn_to_session bind_conn_to_session;
struct nfsd4_create_session create_session;
struct nfsd4_destroy_session destroy_session;
struct nfsd4_sequence sequence;
@@ -518,6 +524,7 @@ extern __be32 nfsd4_replay_cache_entry(struct nfsd4_compoundres *resp,
struct nfsd4_sequence *seq);
extern __be32 nfsd4_exchange_id(struct svc_rqst *rqstp,
struct nfsd4_compound_state *, struct nfsd4_exchange_id *);
+extern __be32 nfsd4_bind_conn_to_session(struct svc_rqst *, struct nfsd4_compound_state *, struct nfsd4_bind_conn_to_session *);
extern __be32 nfsd4_create_session(struct svc_rqst *,
struct nfsd4_compound_state *,
struct nfsd4_create_session *);
generated by cgit v1.1 at 2024-12-25 08:38:25 +0000