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-rw-r--r--fs/nfsd/Makefile3
-rw-r--r--fs/nfsd/blocklayoutxdr.c6
-rw-r--r--fs/nfsd/blocklayoutxdr.h4
-rw-r--r--fs/nfsd/export.c32
-rw-r--r--fs/nfsd/export.h4
-rw-r--r--fs/nfsd/filecache.c27
-rw-r--r--fs/nfsd/flexfilelayoutxdr.c6
-rw-r--r--fs/nfsd/flexfilelayoutxdr.h4
-rw-r--r--fs/nfsd/netlink.c32
-rw-r--r--fs/nfsd/netlink.h22
-rw-r--r--fs/nfsd/nfs3proc.c5
-rw-r--r--fs/nfsd/nfs4callback.c97
-rw-r--r--fs/nfsd/nfs4layouts.c6
-rw-r--r--fs/nfsd/nfs4proc.c32
-rw-r--r--fs/nfsd/nfs4state.c156
-rw-r--r--fs/nfsd/nfs4xdr.c2636
-rw-r--r--fs/nfsd/nfsctl.c203
-rw-r--r--fs/nfsd/nfsd.h17
-rw-r--r--fs/nfsd/nfsfh.c2
-rw-r--r--fs/nfsd/nfsfh.h3
-rw-r--r--fs/nfsd/nfssvc.c42
-rw-r--r--fs/nfsd/pnfs.h6
-rw-r--r--fs/nfsd/state.h27
-rw-r--r--fs/nfsd/stats.c4
-rw-r--r--fs/nfsd/stats.h18
-rw-r--r--fs/nfsd/trace.h87
-rw-r--r--fs/nfsd/vfs.c61
-rw-r--r--fs/nfsd/vfs.h4
-rw-r--r--fs/nfsd/xdr4.h154
-rw-r--r--fs/nfsd/xdr4cb.h18
30 files changed, 2388 insertions, 1330 deletions
diff --git a/fs/nfsd/Makefile b/fs/nfsd/Makefile
index 6fffc8f03f74..b8736a82e57c 100644
--- a/fs/nfsd/Makefile
+++ b/fs/nfsd/Makefile
@@ -12,7 +12,8 @@ nfsd-y += trace.o
nfsd-y += nfssvc.o nfsctl.o nfsfh.o vfs.o \
export.o auth.o lockd.o nfscache.o \
- stats.o filecache.o nfs3proc.o nfs3xdr.o
+ stats.o filecache.o nfs3proc.o nfs3xdr.o \
+ netlink.o
nfsd-$(CONFIG_NFSD_V2) += nfsproc.o nfsxdr.o
nfsd-$(CONFIG_NFSD_V2_ACL) += nfs2acl.o
nfsd-$(CONFIG_NFSD_V3_ACL) += nfs3acl.o
diff --git a/fs/nfsd/blocklayoutxdr.c b/fs/nfsd/blocklayoutxdr.c
index 1ed2f691ebb9..ce78f74715ee 100644
--- a/fs/nfsd/blocklayoutxdr.c
+++ b/fs/nfsd/blocklayoutxdr.c
@@ -16,9 +16,9 @@
__be32
nfsd4_block_encode_layoutget(struct xdr_stream *xdr,
- struct nfsd4_layoutget *lgp)
+ const struct nfsd4_layoutget *lgp)
{
- struct pnfs_block_extent *b = lgp->lg_content;
+ const struct pnfs_block_extent *b = lgp->lg_content;
int len = sizeof(__be32) + 5 * sizeof(__be64) + sizeof(__be32);
__be32 *p;
@@ -77,7 +77,7 @@ nfsd4_block_encode_volume(struct xdr_stream *xdr, struct pnfs_block_volume *b)
__be32
nfsd4_block_encode_getdeviceinfo(struct xdr_stream *xdr,
- struct nfsd4_getdeviceinfo *gdp)
+ const struct nfsd4_getdeviceinfo *gdp)
{
struct pnfs_block_deviceaddr *dev = gdp->gd_device;
int len = sizeof(__be32), ret, i;
diff --git a/fs/nfsd/blocklayoutxdr.h b/fs/nfsd/blocklayoutxdr.h
index bc5166bfe46b..b0361e8aa9a7 100644
--- a/fs/nfsd/blocklayoutxdr.h
+++ b/fs/nfsd/blocklayoutxdr.h
@@ -51,9 +51,9 @@ struct pnfs_block_deviceaddr {
};
__be32 nfsd4_block_encode_getdeviceinfo(struct xdr_stream *xdr,
- struct nfsd4_getdeviceinfo *gdp);
+ const struct nfsd4_getdeviceinfo *gdp);
__be32 nfsd4_block_encode_layoutget(struct xdr_stream *xdr,
- struct nfsd4_layoutget *lgp);
+ const struct nfsd4_layoutget *lgp);
int nfsd4_block_decode_layoutupdate(__be32 *p, u32 len, struct iomap **iomapp,
u32 block_size);
int nfsd4_scsi_decode_layoutupdate(__be32 *p, u32 len, struct iomap **iomapp,
diff --git a/fs/nfsd/export.c b/fs/nfsd/export.c
index 11a0eaa2f914..b7da17e53007 100644
--- a/fs/nfsd/export.c
+++ b/fs/nfsd/export.c
@@ -339,12 +339,16 @@ static int export_stats_init(struct export_stats *stats)
static void export_stats_reset(struct export_stats *stats)
{
- nfsd_percpu_counters_reset(stats->counter, EXP_STATS_COUNTERS_NUM);
+ if (stats)
+ nfsd_percpu_counters_reset(stats->counter,
+ EXP_STATS_COUNTERS_NUM);
}
static void export_stats_destroy(struct export_stats *stats)
{
- nfsd_percpu_counters_destroy(stats->counter, EXP_STATS_COUNTERS_NUM);
+ if (stats)
+ nfsd_percpu_counters_destroy(stats->counter,
+ EXP_STATS_COUNTERS_NUM);
}
static void svc_export_put(struct kref *ref)
@@ -353,7 +357,8 @@ static void svc_export_put(struct kref *ref)
path_put(&exp->ex_path);
auth_domain_put(exp->ex_client);
nfsd4_fslocs_free(&exp->ex_fslocs);
- export_stats_destroy(&exp->ex_stats);
+ export_stats_destroy(exp->ex_stats);
+ kfree(exp->ex_stats);
kfree(exp->ex_uuid);
kfree_rcu(exp, ex_rcu);
}
@@ -767,13 +772,15 @@ static int svc_export_show(struct seq_file *m,
seq_putc(m, '\t');
seq_escape(m, exp->ex_client->name, " \t\n\\");
if (export_stats) {
- seq_printf(m, "\t%lld\n", exp->ex_stats.start_time);
+ struct percpu_counter *counter = exp->ex_stats->counter;
+
+ seq_printf(m, "\t%lld\n", exp->ex_stats->start_time);
seq_printf(m, "\tfh_stale: %lld\n",
- percpu_counter_sum_positive(&exp->ex_stats.counter[EXP_STATS_FH_STALE]));
+ percpu_counter_sum_positive(&counter[EXP_STATS_FH_STALE]));
seq_printf(m, "\tio_read: %lld\n",
- percpu_counter_sum_positive(&exp->ex_stats.counter[EXP_STATS_IO_READ]));
+ percpu_counter_sum_positive(&counter[EXP_STATS_IO_READ]));
seq_printf(m, "\tio_write: %lld\n",
- percpu_counter_sum_positive(&exp->ex_stats.counter[EXP_STATS_IO_WRITE]));
+ percpu_counter_sum_positive(&counter[EXP_STATS_IO_WRITE]));
seq_putc(m, '\n');
return 0;
}
@@ -819,7 +826,7 @@ static void svc_export_init(struct cache_head *cnew, struct cache_head *citem)
new->ex_layout_types = 0;
new->ex_uuid = NULL;
new->cd = item->cd;
- export_stats_reset(&new->ex_stats);
+ export_stats_reset(new->ex_stats);
}
static void export_update(struct cache_head *cnew, struct cache_head *citem)
@@ -856,7 +863,14 @@ static struct cache_head *svc_export_alloc(void)
if (!i)
return NULL;
- if (export_stats_init(&i->ex_stats)) {
+ i->ex_stats = kmalloc(sizeof(*(i->ex_stats)), GFP_KERNEL);
+ if (!i->ex_stats) {
+ kfree(i);
+ return NULL;
+ }
+
+ if (export_stats_init(i->ex_stats)) {
+ kfree(i->ex_stats);
kfree(i);
return NULL;
}
diff --git a/fs/nfsd/export.h b/fs/nfsd/export.h
index 2df8ae25aad3..ca9dc230ae3d 100644
--- a/fs/nfsd/export.h
+++ b/fs/nfsd/export.h
@@ -64,10 +64,10 @@ struct svc_export {
struct cache_head h;
struct auth_domain * ex_client;
int ex_flags;
+ int ex_fsid;
struct path ex_path;
kuid_t ex_anon_uid;
kgid_t ex_anon_gid;
- int ex_fsid;
unsigned char * ex_uuid; /* 16 byte fsid */
struct nfsd4_fs_locations ex_fslocs;
uint32_t ex_nflavors;
@@ -76,8 +76,8 @@ struct svc_export {
struct nfsd4_deviceid_map *ex_devid_map;
struct cache_detail *cd;
struct rcu_head ex_rcu;
- struct export_stats ex_stats;
unsigned long ex_xprtsec_modes;
+ struct export_stats *ex_stats;
};
/* an "export key" (expkey) maps a filehandlefragement to an
diff --git a/fs/nfsd/filecache.c b/fs/nfsd/filecache.c
index ee9c923192e0..07bf219f9ae4 100644
--- a/fs/nfsd/filecache.c
+++ b/fs/nfsd/filecache.c
@@ -989,22 +989,21 @@ nfsd_file_do_acquire(struct svc_rqst *rqstp, struct svc_fh *fhp,
unsigned char need = may_flags & NFSD_FILE_MAY_MASK;
struct net *net = SVC_NET(rqstp);
struct nfsd_file *new, *nf;
- const struct cred *cred;
+ bool stale_retry = true;
bool open_retry = true;
struct inode *inode;
__be32 status;
int ret;
+retry:
status = fh_verify(rqstp, fhp, S_IFREG,
may_flags|NFSD_MAY_OWNER_OVERRIDE);
if (status != nfs_ok)
return status;
inode = d_inode(fhp->fh_dentry);
- cred = get_current_cred();
-retry:
rcu_read_lock();
- nf = nfsd_file_lookup_locked(net, cred, inode, need, want_gc);
+ nf = nfsd_file_lookup_locked(net, current_cred(), inode, need, want_gc);
rcu_read_unlock();
if (nf) {
@@ -1026,7 +1025,7 @@ retry:
rcu_read_lock();
spin_lock(&inode->i_lock);
- nf = nfsd_file_lookup_locked(net, cred, inode, need, want_gc);
+ nf = nfsd_file_lookup_locked(net, current_cred(), inode, need, want_gc);
if (unlikely(nf)) {
spin_unlock(&inode->i_lock);
rcu_read_unlock();
@@ -1058,6 +1057,7 @@ wait_for_construction:
goto construction_err;
}
open_retry = false;
+ fh_put(fhp);
goto retry;
}
this_cpu_inc(nfsd_file_cache_hits);
@@ -1074,7 +1074,6 @@ out:
nfsd_file_check_write_error(nf);
*pnf = nf;
}
- put_cred(cred);
trace_nfsd_file_acquire(rqstp, inode, may_flags, nf, status);
return status;
@@ -1088,8 +1087,20 @@ open_file:
status = nfs_ok;
trace_nfsd_file_opened(nf, status);
} else {
- status = nfsd_open_verified(rqstp, fhp, may_flags,
- &nf->nf_file);
+ ret = nfsd_open_verified(rqstp, fhp, may_flags,
+ &nf->nf_file);
+ if (ret == -EOPENSTALE && stale_retry) {
+ stale_retry = false;
+ nfsd_file_unhash(nf);
+ clear_and_wake_up_bit(NFSD_FILE_PENDING,
+ &nf->nf_flags);
+ if (refcount_dec_and_test(&nf->nf_ref))
+ nfsd_file_free(nf);
+ nf = NULL;
+ fh_put(fhp);
+ goto retry;
+ }
+ status = nfserrno(ret);
trace_nfsd_file_open(nf, status);
}
} else
diff --git a/fs/nfsd/flexfilelayoutxdr.c b/fs/nfsd/flexfilelayoutxdr.c
index bb205328e043..aeb71c10ff1b 100644
--- a/fs/nfsd/flexfilelayoutxdr.c
+++ b/fs/nfsd/flexfilelayoutxdr.c
@@ -17,9 +17,9 @@ struct ff_idmap {
__be32
nfsd4_ff_encode_layoutget(struct xdr_stream *xdr,
- struct nfsd4_layoutget *lgp)
+ const struct nfsd4_layoutget *lgp)
{
- struct pnfs_ff_layout *fl = lgp->lg_content;
+ const struct pnfs_ff_layout *fl = lgp->lg_content;
int len, mirror_len, ds_len, fh_len;
__be32 *p;
@@ -77,7 +77,7 @@ nfsd4_ff_encode_layoutget(struct xdr_stream *xdr,
__be32
nfsd4_ff_encode_getdeviceinfo(struct xdr_stream *xdr,
- struct nfsd4_getdeviceinfo *gdp)
+ const struct nfsd4_getdeviceinfo *gdp)
{
struct pnfs_ff_device_addr *da = gdp->gd_device;
int len;
diff --git a/fs/nfsd/flexfilelayoutxdr.h b/fs/nfsd/flexfilelayoutxdr.h
index 8e195aeca023..6d5a1066a903 100644
--- a/fs/nfsd/flexfilelayoutxdr.h
+++ b/fs/nfsd/flexfilelayoutxdr.h
@@ -43,8 +43,8 @@ struct pnfs_ff_layout {
};
__be32 nfsd4_ff_encode_getdeviceinfo(struct xdr_stream *xdr,
- struct nfsd4_getdeviceinfo *gdp);
+ const struct nfsd4_getdeviceinfo *gdp);
__be32 nfsd4_ff_encode_layoutget(struct xdr_stream *xdr,
- struct nfsd4_layoutget *lgp);
+ const struct nfsd4_layoutget *lgp);
#endif /* _NFSD_FLEXFILELAYOUTXDR_H */
diff --git a/fs/nfsd/netlink.c b/fs/nfsd/netlink.c
new file mode 100644
index 000000000000..0e1d635ec5f9
--- /dev/null
+++ b/fs/nfsd/netlink.c
@@ -0,0 +1,32 @@
+// SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)
+/* Do not edit directly, auto-generated from: */
+/* Documentation/netlink/specs/nfsd.yaml */
+/* YNL-GEN kernel source */
+
+#include <net/netlink.h>
+#include <net/genetlink.h>
+
+#include "netlink.h"
+
+#include <uapi/linux/nfsd_netlink.h>
+
+/* Ops table for nfsd */
+static const struct genl_split_ops nfsd_nl_ops[] = {
+ {
+ .cmd = NFSD_CMD_RPC_STATUS_GET,
+ .start = nfsd_nl_rpc_status_get_start,
+ .dumpit = nfsd_nl_rpc_status_get_dumpit,
+ .done = nfsd_nl_rpc_status_get_done,
+ .flags = GENL_CMD_CAP_DUMP,
+ },
+};
+
+struct genl_family nfsd_nl_family __ro_after_init = {
+ .name = NFSD_FAMILY_NAME,
+ .version = NFSD_FAMILY_VERSION,
+ .netnsok = true,
+ .parallel_ops = true,
+ .module = THIS_MODULE,
+ .split_ops = nfsd_nl_ops,
+ .n_split_ops = ARRAY_SIZE(nfsd_nl_ops),
+};
diff --git a/fs/nfsd/netlink.h b/fs/nfsd/netlink.h
new file mode 100644
index 000000000000..d83dd6bdee92
--- /dev/null
+++ b/fs/nfsd/netlink.h
@@ -0,0 +1,22 @@
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
+/* Do not edit directly, auto-generated from: */
+/* Documentation/netlink/specs/nfsd.yaml */
+/* YNL-GEN kernel header */
+
+#ifndef _LINUX_NFSD_GEN_H
+#define _LINUX_NFSD_GEN_H
+
+#include <net/netlink.h>
+#include <net/genetlink.h>
+
+#include <uapi/linux/nfsd_netlink.h>
+
+int nfsd_nl_rpc_status_get_start(struct netlink_callback *cb);
+int nfsd_nl_rpc_status_get_done(struct netlink_callback *cb);
+
+int nfsd_nl_rpc_status_get_dumpit(struct sk_buff *skb,
+ struct netlink_callback *cb);
+
+extern struct genl_family nfsd_nl_family;
+
+#endif /* _LINUX_NFSD_GEN_H */
diff --git a/fs/nfsd/nfs3proc.c b/fs/nfsd/nfs3proc.c
index 666bad8182e5..b78eceebd945 100644
--- a/fs/nfsd/nfs3proc.c
+++ b/fs/nfsd/nfs3proc.c
@@ -171,7 +171,8 @@ nfsd3_proc_read(struct svc_rqst *rqstp)
* + 1 (xdr opaque byte count) = 26
*/
resp->count = argp->count;
- svc_reserve_auth(rqstp, ((1 + NFS3_POST_OP_ATTR_WORDS + 3)<<2) + resp->count +4);
+ svc_reserve_auth(rqstp, ((1 + NFS3_POST_OP_ATTR_WORDS + 3) << 2) +
+ resp->count + 4);
fh_copy(&resp->fh, &argp->fh);
resp->status = nfsd_read(rqstp, &resp->fh, argp->offset,
@@ -194,7 +195,7 @@ nfsd3_proc_write(struct svc_rqst *rqstp)
SVCFH_fmt(&argp->fh),
argp->len,
(unsigned long long) argp->offset,
- argp->stable? " stable" : "");
+ argp->stable ? " stable" : "");
resp->status = nfserr_fbig;
if (argp->offset > (u64)OFFSET_MAX ||
diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c
index 4039ffcf90ba..92bc109dabe6 100644
--- a/fs/nfsd/nfs4callback.c
+++ b/fs/nfsd/nfs4callback.c
@@ -84,7 +84,21 @@ static void encode_uint32(struct xdr_stream *xdr, u32 n)
static void encode_bitmap4(struct xdr_stream *xdr, const __u32 *bitmap,
size_t len)
{
- WARN_ON_ONCE(xdr_stream_encode_uint32_array(xdr, bitmap, len) < 0);
+ xdr_stream_encode_uint32_array(xdr, bitmap, len);
+}
+
+static int decode_cb_fattr4(struct xdr_stream *xdr, uint32_t *bitmap,
+ struct nfs4_cb_fattr *fattr)
+{
+ fattr->ncf_cb_change = 0;
+ fattr->ncf_cb_fsize = 0;
+ if (bitmap[0] & FATTR4_WORD0_CHANGE)
+ if (xdr_stream_decode_u64(xdr, &fattr->ncf_cb_change) < 0)
+ return -NFSERR_BAD_XDR;
+ if (bitmap[0] & FATTR4_WORD0_SIZE)
+ if (xdr_stream_decode_u64(xdr, &fattr->ncf_cb_fsize) < 0)
+ return -NFSERR_BAD_XDR;
+ return 0;
}
/*
@@ -358,6 +372,30 @@ encode_cb_recallany4args(struct xdr_stream *xdr,
}
/*
+ * CB_GETATTR4args
+ * struct CB_GETATTR4args {
+ * nfs_fh4 fh;
+ * bitmap4 attr_request;
+ * };
+ *
+ * The size and change attributes are the only one
+ * guaranteed to be serviced by the client.
+ */
+static void
+encode_cb_getattr4args(struct xdr_stream *xdr, struct nfs4_cb_compound_hdr *hdr,
+ struct nfs4_cb_fattr *fattr)
+{
+ struct nfs4_delegation *dp =
+ container_of(fattr, struct nfs4_delegation, dl_cb_fattr);
+ struct knfsd_fh *fh = &dp->dl_stid.sc_file->fi_fhandle;
+
+ encode_nfs_cb_opnum4(xdr, OP_CB_GETATTR);
+ encode_nfs_fh4(xdr, fh);
+ encode_bitmap4(xdr, fattr->ncf_cb_bmap, ARRAY_SIZE(fattr->ncf_cb_bmap));
+ hdr->nops++;
+}
+
+/*
* CB_SEQUENCE4args
*
* struct CB_SEQUENCE4args {
@@ -493,6 +531,26 @@ static void nfs4_xdr_enc_cb_null(struct rpc_rqst *req, struct xdr_stream *xdr,
}
/*
+ * 20.1. Operation 3: CB_GETATTR - Get Attributes
+ */
+static void nfs4_xdr_enc_cb_getattr(struct rpc_rqst *req,
+ struct xdr_stream *xdr, const void *data)
+{
+ const struct nfsd4_callback *cb = data;
+ struct nfs4_cb_fattr *ncf =
+ container_of(cb, struct nfs4_cb_fattr, ncf_getattr);
+ struct nfs4_cb_compound_hdr hdr = {
+ .ident = cb->cb_clp->cl_cb_ident,
+ .minorversion = cb->cb_clp->cl_minorversion,
+ };
+
+ encode_cb_compound4args(xdr, &hdr);
+ encode_cb_sequence4args(xdr, cb, &hdr);
+ encode_cb_getattr4args(xdr, &hdr, ncf);
+ encode_cb_nops(&hdr);
+}
+
+/*
* 20.2. Operation 4: CB_RECALL - Recall a Delegation
*/
static void nfs4_xdr_enc_cb_recall(struct rpc_rqst *req, struct xdr_stream *xdr,
@@ -548,6 +606,42 @@ static int nfs4_xdr_dec_cb_null(struct rpc_rqst *req, struct xdr_stream *xdr,
}
/*
+ * 20.1. Operation 3: CB_GETATTR - Get Attributes
+ */
+static int nfs4_xdr_dec_cb_getattr(struct rpc_rqst *rqstp,
+ struct xdr_stream *xdr,
+ void *data)
+{
+ struct nfsd4_callback *cb = data;
+ struct nfs4_cb_compound_hdr hdr;
+ int status;
+ u32 bitmap[3] = {0};
+ u32 attrlen;
+ struct nfs4_cb_fattr *ncf =
+ container_of(cb, struct nfs4_cb_fattr, ncf_getattr);
+
+ status = decode_cb_compound4res(xdr, &hdr);
+ if (unlikely(status))
+ return status;
+
+ status = decode_cb_sequence4res(xdr, cb);
+ if (unlikely(status || cb->cb_seq_status))
+ return status;
+
+ status = decode_cb_op_status(xdr, OP_CB_GETATTR, &cb->cb_status);
+ if (status)
+ return status;
+ if (xdr_stream_decode_uint32_array(xdr, bitmap, 3) < 0)
+ return -NFSERR_BAD_XDR;
+ if (xdr_stream_decode_u32(xdr, &attrlen) < 0)
+ return -NFSERR_BAD_XDR;
+ if (attrlen > (sizeof(ncf->ncf_cb_change) + sizeof(ncf->ncf_cb_fsize)))
+ return -NFSERR_BAD_XDR;
+ status = decode_cb_fattr4(xdr, bitmap, ncf);
+ return status;
+}
+
+/*
* 20.2. Operation 4: CB_RECALL - Recall a Delegation
*/
static int nfs4_xdr_dec_cb_recall(struct rpc_rqst *rqstp,
@@ -855,6 +949,7 @@ static const struct rpc_procinfo nfs4_cb_procedures[] = {
PROC(CB_NOTIFY_LOCK, COMPOUND, cb_notify_lock, cb_notify_lock),
PROC(CB_OFFLOAD, COMPOUND, cb_offload, cb_offload),
PROC(CB_RECALL_ANY, COMPOUND, cb_recall_any, cb_recall_any),
+ PROC(CB_GETATTR, COMPOUND, cb_getattr, cb_getattr),
};
static unsigned int nfs4_cb_counts[ARRAY_SIZE(nfs4_cb_procedures)];
diff --git a/fs/nfsd/nfs4layouts.c b/fs/nfsd/nfs4layouts.c
index e8a80052cb1b..5e8096bc5eaa 100644
--- a/fs/nfsd/nfs4layouts.c
+++ b/fs/nfsd/nfs4layouts.c
@@ -515,11 +515,11 @@ nfsd4_return_file_layouts(struct svc_rqst *rqstp,
if (!list_empty(&ls->ls_layouts)) {
if (found)
nfs4_inc_and_copy_stateid(&lrp->lr_sid, &ls->ls_stid);
- lrp->lrs_present = 1;
+ lrp->lrs_present = true;
} else {
trace_nfsd_layoutstate_unhash(&ls->ls_stid.sc_stateid);
nfs4_unhash_stid(&ls->ls_stid);
- lrp->lrs_present = 0;
+ lrp->lrs_present = false;
}
spin_unlock(&ls->ls_lock);
@@ -539,7 +539,7 @@ nfsd4_return_client_layouts(struct svc_rqst *rqstp,
struct nfs4_layout *lp, *t;
LIST_HEAD(reaplist);
- lrp->lrs_present = 0;
+ lrp->lrs_present = false;
spin_lock(&clp->cl_lock);
list_for_each_entry_safe(ls, n, &clp->cl_lo_states, ls_perclnt) {
diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index e818e4023519..6f2d4aa4970d 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -1329,7 +1329,8 @@ extern void nfs_sb_deactive(struct super_block *sb);
* setup a work entry in the ssc delayed unmount list.
*/
static __be32 nfsd4_ssc_setup_dul(struct nfsd_net *nn, char *ipaddr,
- struct nfsd4_ssc_umount_item **nsui)
+ struct nfsd4_ssc_umount_item **nsui,
+ struct svc_rqst *rqstp)
{
struct nfsd4_ssc_umount_item *ni = NULL;
struct nfsd4_ssc_umount_item *work = NULL;
@@ -1351,7 +1352,7 @@ try_again:
spin_unlock(&nn->nfsd_ssc_lock);
/* allow 20secs for mount/unmount for now - revisit */
- if (kthread_should_stop() ||
+ if (svc_thread_should_stop(rqstp) ||
(schedule_timeout(20*HZ) == 0)) {
finish_wait(&nn->nfsd_ssc_waitq, &wait);
kfree(work);
@@ -1467,7 +1468,7 @@ nfsd4_interssc_connect(struct nl4_server *nss, struct svc_rqst *rqstp,
goto out_free_rawdata;
snprintf(dev_name, len + 5, "%s%s%s:/", startsep, ipaddr, endsep);
- status = nfsd4_ssc_setup_dul(nn, ipaddr, nsui);
+ status = nfsd4_ssc_setup_dul(nn, ipaddr, nsui, rqstp);
if (status)
goto out_free_devname;
if ((*nsui)->nsui_vfsmount)
@@ -1642,6 +1643,7 @@ static ssize_t _nfsd_copy_file_range(struct nfsd4_copy *copy,
if (bytes_total == 0)
bytes_total = ULLONG_MAX;
do {
+ /* Only async copies can be stopped here */
if (kthread_should_stop())
break;
bytes_copied = nfsd_copy_file_range(src, src_pos, dst, dst_pos,
@@ -1760,6 +1762,7 @@ static int nfsd4_do_async_copy(void *data)
struct nfsd4_copy *copy = (struct nfsd4_copy *)data;
__be32 nfserr;
+ trace_nfsd_copy_do_async(copy);
if (nfsd4_ssc_is_inter(copy)) {
struct file *filp;
@@ -1798,21 +1801,27 @@ nfsd4_copy(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
__be32 status;
struct nfsd4_copy *async_copy = NULL;
+ copy->cp_clp = cstate->clp;
if (nfsd4_ssc_is_inter(copy)) {
+ trace_nfsd_copy_inter(copy);
if (!inter_copy_offload_enable || nfsd4_copy_is_sync(copy)) {
status = nfserr_notsupp;
goto out;
}
status = nfsd4_setup_inter_ssc(rqstp, cstate, copy);
- if (status)
+ if (status) {
+ trace_nfsd_copy_done(copy, status);
return nfserr_offload_denied;
+ }
} else {
+ trace_nfsd_copy_intra(copy);
status = nfsd4_setup_intra_ssc(rqstp, cstate, copy);
- if (status)
+ if (status) {
+ trace_nfsd_copy_done(copy, status);
return status;
+ }
}
- copy->cp_clp = cstate->clp;
memcpy(&copy->fh, &cstate->current_fh.fh_handle,
sizeof(struct knfsd_fh));
if (nfsd4_copy_is_async(copy)) {
@@ -1847,6 +1856,7 @@ nfsd4_copy(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
copy->nf_dst->nf_file, true);
}
out:
+ trace_nfsd_copy_done(copy, status);
release_copy_files(copy);
return status;
out_err:
@@ -1929,8 +1939,8 @@ nfsd4_copy_notify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
if (status)
return status;
- cn->cpn_sec = nn->nfsd4_lease;
- cn->cpn_nsec = 0;
+ cn->cpn_lease_time.tv_sec = nn->nfsd4_lease;
+ cn->cpn_lease_time.tv_nsec = 0;
status = nfserrno(-ENOMEM);
cps = nfs4_alloc_init_cpntf_state(nn, stid);
@@ -2347,10 +2357,10 @@ nfsd4_layoutcommit(struct svc_rqst *rqstp,
mutex_unlock(&ls->ls_mutex);
if (new_size > i_size_read(inode)) {
- lcp->lc_size_chg = 1;
+ lcp->lc_size_chg = true;
lcp->lc_newsize = new_size;
} else {
- lcp->lc_size_chg = 0;
+ lcp->lc_size_chg = false;
}
nfserr = ops->proc_layoutcommit(inode, lcp);
@@ -3200,6 +3210,7 @@ static const struct nfsd4_operation nfsd4_ops[] = {
},
[OP_LOCK] = {
.op_func = nfsd4_lock,
+ .op_release = nfsd4_lock_release,
.op_flags = OP_MODIFIES_SOMETHING |
OP_NONTRIVIAL_ERROR_ENCODE,
.op_name = "OP_LOCK",
@@ -3208,6 +3219,7 @@ static const struct nfsd4_operation nfsd4_ops[] = {
},
[OP_LOCKT] = {
.op_func = nfsd4_lockt,
+ .op_release = nfsd4_lockt_release,
.op_flags = OP_NONTRIVIAL_ERROR_ENCODE,
.op_name = "OP_LOCKT",
.op_rsize_bop = nfsd4_lock_rsize,
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 8534693eb6a4..65fd5510323a 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -59,7 +59,7 @@
#define NFSDDBG_FACILITY NFSDDBG_PROC
-#define all_ones {{~0,~0},~0}
+#define all_ones {{ ~0, ~0}, ~0}
static const stateid_t one_stateid = {
.si_generation = ~0,
.si_opaque = all_ones,
@@ -127,6 +127,7 @@ static void free_session(struct nfsd4_session *);
static const struct nfsd4_callback_ops nfsd4_cb_recall_ops;
static const struct nfsd4_callback_ops nfsd4_cb_notify_lock_ops;
+static const struct nfsd4_callback_ops nfsd4_cb_getattr_ops;
static struct workqueue_struct *laundry_wq;
@@ -297,7 +298,7 @@ find_or_allocate_block(struct nfs4_lockowner *lo, struct knfsd_fh *fh,
nbl = find_blocked_lock(lo, fh, nn);
if (!nbl) {
- nbl= kmalloc(sizeof(*nbl), GFP_KERNEL);
+ nbl = kmalloc(sizeof(*nbl), GFP_KERNEL);
if (nbl) {
INIT_LIST_HEAD(&nbl->nbl_list);
INIT_LIST_HEAD(&nbl->nbl_lru);
@@ -1159,6 +1160,7 @@ alloc_init_deleg(struct nfs4_client *clp, struct nfs4_file *fp,
struct nfs4_clnt_odstate *odstate, u32 dl_type)
{
struct nfs4_delegation *dp;
+ struct nfs4_stid *stid;
long n;
dprintk("NFSD alloc_init_deleg\n");
@@ -1167,9 +1169,10 @@ alloc_init_deleg(struct nfs4_client *clp, struct nfs4_file *fp,
goto out_dec;
if (delegation_blocked(&fp->fi_fhandle))
goto out_dec;
- dp = delegstateid(nfs4_alloc_stid(clp, deleg_slab, nfs4_free_deleg));
- if (dp == NULL)
+ stid = nfs4_alloc_stid(clp, deleg_slab, nfs4_free_deleg);
+ if (stid == NULL)
goto out_dec;
+ dp = delegstateid(stid);
/*
* delegation seqid's are never incremented. The 4.1 special
@@ -1187,6 +1190,10 @@ alloc_init_deleg(struct nfs4_client *clp, struct nfs4_file *fp,
dp->dl_recalled = false;
nfsd4_init_cb(&dp->dl_recall, dp->dl_stid.sc_client,
&nfsd4_cb_recall_ops, NFSPROC4_CLNT_CB_RECALL);
+ nfsd4_init_cb(&dp->dl_cb_fattr.ncf_getattr, dp->dl_stid.sc_client,
+ &nfsd4_cb_getattr_ops, NFSPROC4_CLNT_CB_GETATTR);
+ dp->dl_cb_fattr.ncf_file_modified = false;
+ dp->dl_cb_fattr.ncf_cb_bmap[0] = FATTR4_WORD0_CHANGE | FATTR4_WORD0_SIZE;
get_nfs4_file(fp);
dp->dl_stid.sc_file = fp;
return dp;
@@ -2894,11 +2901,56 @@ nfsd4_cb_recall_any_release(struct nfsd4_callback *cb)
spin_unlock(&nn->client_lock);
}
+static int
+nfsd4_cb_getattr_done(struct nfsd4_callback *cb, struct rpc_task *task)
+{
+ struct nfs4_cb_fattr *ncf =
+ container_of(cb, struct nfs4_cb_fattr, ncf_getattr);
+
+ ncf->ncf_cb_status = task->tk_status;
+ switch (task->tk_status) {
+ case -NFS4ERR_DELAY:
+ rpc_delay(task, 2 * HZ);
+ return 0;
+ default:
+ return 1;
+ }
+}
+
+static void
+nfsd4_cb_getattr_release(struct nfsd4_callback *cb)
+{
+ struct nfs4_cb_fattr *ncf =
+ container_of(cb, struct nfs4_cb_fattr, ncf_getattr);
+ struct nfs4_delegation *dp =
+ container_of(ncf, struct nfs4_delegation, dl_cb_fattr);
+
+ nfs4_put_stid(&dp->dl_stid);
+ clear_bit(CB_GETATTR_BUSY, &ncf->ncf_cb_flags);
+ wake_up_bit(&ncf->ncf_cb_flags, CB_GETATTR_BUSY);
+}
+
static const struct nfsd4_callback_ops nfsd4_cb_recall_any_ops = {
.done = nfsd4_cb_recall_any_done,
.release = nfsd4_cb_recall_any_release,
};
+static const struct nfsd4_callback_ops nfsd4_cb_getattr_ops = {
+ .done = nfsd4_cb_getattr_done,
+ .release = nfsd4_cb_getattr_release,
+};
+
+void nfs4_cb_getattr(struct nfs4_cb_fattr *ncf)
+{
+ struct nfs4_delegation *dp =
+ container_of(ncf, struct nfs4_delegation, dl_cb_fattr);
+
+ if (test_and_set_bit(CB_GETATTR_BUSY, &ncf->ncf_cb_flags))
+ return;
+ refcount_inc(&dp->dl_stid.sc_count);
+ nfsd4_run_cb(&ncf->ncf_getattr);
+}
+
static struct nfs4_client *create_client(struct xdr_netobj name,
struct svc_rqst *rqstp, nfs4_verifier *verf)
{
@@ -5634,13 +5686,15 @@ nfs4_open_delegation(struct nfsd4_open *open, struct nfs4_ol_stateid *stp,
struct svc_fh *parent = NULL;
int cb_up;
int status = 0;
+ struct kstat stat;
+ struct path path;
cb_up = nfsd4_cb_channel_good(oo->oo_owner.so_client);
- open->op_recall = 0;
+ open->op_recall = false;
switch (open->op_claim_type) {
case NFS4_OPEN_CLAIM_PREVIOUS:
if (!cb_up)
- open->op_recall = 1;
+ open->op_recall = true;
break;
case NFS4_OPEN_CLAIM_NULL:
parent = currentfh;
@@ -5671,6 +5725,18 @@ nfs4_open_delegation(struct nfsd4_open *open, struct nfs4_ol_stateid *stp,
if (open->op_share_access & NFS4_SHARE_ACCESS_WRITE) {
open->op_delegate_type = NFS4_OPEN_DELEGATE_WRITE;
trace_nfsd_deleg_write(&dp->dl_stid.sc_stateid);
+ path.mnt = currentfh->fh_export->ex_path.mnt;
+ path.dentry = currentfh->fh_dentry;
+ if (vfs_getattr(&path, &stat,
+ (STATX_SIZE | STATX_CTIME | STATX_CHANGE_COOKIE),
+ AT_STATX_SYNC_AS_STAT)) {
+ nfs4_put_stid(&dp->dl_stid);
+ destroy_delegation(dp);
+ goto out_no_deleg;
+ }
+ dp->dl_cb_fattr.ncf_cur_fsize = stat.size;
+ dp->dl_cb_fattr.ncf_initial_cinfo =
+ nfsd4_change_attribute(&stat, d_inode(currentfh->fh_dentry));
} else {
open->op_delegate_type = NFS4_OPEN_DELEGATE_READ;
trace_nfsd_deleg_read(&dp->dl_stid.sc_stateid);
@@ -5682,7 +5748,7 @@ out_no_deleg:
if (open->op_claim_type == NFS4_OPEN_CLAIM_PREVIOUS &&
open->op_delegate_type != NFS4_OPEN_DELEGATE_NONE) {
dprintk("NFSD: WARNING: refusing delegation reclaim\n");
- open->op_recall = 1;
+ open->op_recall = true;
}
/* 4.1 client asking for a delegation? */
@@ -7487,6 +7553,7 @@ nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
struct nfsd4_blocked_lock *nbl = NULL;
struct file_lock *file_lock = NULL;
struct file_lock *conflock = NULL;
+ struct super_block *sb;
__be32 status = 0;
int lkflg;
int err;
@@ -7508,6 +7575,7 @@ nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
dprintk("NFSD: nfsd4_lock: permission denied!\n");
return status;
}
+ sb = cstate->current_fh.fh_dentry->d_sb;
if (lock->lk_is_new) {
if (nfsd4_has_session(cstate))
@@ -7559,7 +7627,8 @@ nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
fp = lock_stp->st_stid.sc_file;
switch (lock->lk_type) {
case NFS4_READW_LT:
- if (nfsd4_has_session(cstate))
+ if (nfsd4_has_session(cstate) ||
+ exportfs_lock_op_is_async(sb->s_export_op))
fl_flags |= FL_SLEEP;
fallthrough;
case NFS4_READ_LT:
@@ -7571,7 +7640,8 @@ nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
fl_type = F_RDLCK;
break;
case NFS4_WRITEW_LT:
- if (nfsd4_has_session(cstate))
+ if (nfsd4_has_session(cstate) ||
+ exportfs_lock_op_is_async(sb->s_export_op))
fl_flags |= FL_SLEEP;
fallthrough;
case NFS4_WRITE_LT:
@@ -7599,7 +7669,7 @@ nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
* for file locks), so don't attempt blocking lock notifications
* on those filesystems:
*/
- if (nf->nf_file->f_op->lock)
+ if (!exportfs_lock_op_is_async(sb->s_export_op))
fl_flags &= ~FL_SLEEP;
nbl = find_or_allocate_block(lock_sop, &fp->fi_fhandle, nn);
@@ -7705,6 +7775,14 @@ out:
return status;
}
+void nfsd4_lock_release(union nfsd4_op_u *u)
+{
+ struct nfsd4_lock *lock = &u->lock;
+ struct nfsd4_lock_denied *deny = &lock->lk_denied;
+
+ kfree(deny->ld_owner.data);
+}
+
/*
* The NFSv4 spec allows a client to do a LOCKT without holding an OPEN,
* so we do a temporary open here just to get an open file to pass to
@@ -7810,6 +7888,14 @@ out:
return status;
}
+void nfsd4_lockt_release(union nfsd4_op_u *u)
+{
+ struct nfsd4_lockt *lockt = &u->lockt;
+ struct nfsd4_lock_denied *deny = &lockt->lt_denied;
+
+ kfree(deny->ld_owner.data);
+}
+
__be32
nfsd4_locku(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
union nfsd4_op_u *u)
@@ -8403,6 +8489,8 @@ nfsd4_get_writestateid(struct nfsd4_compound_state *cstate,
* nfsd4_deleg_getattr_conflict - Recall if GETATTR causes conflict
* @rqstp: RPC transaction context
* @inode: file to be checked for a conflict
+ * @modified: return true if file was modified
+ * @size: new size of file if modified is true
*
* This function is called when there is a conflict between a write
* delegation and a change/size GETATTR from another client. The server
@@ -8411,21 +8499,23 @@ nfsd4_get_writestateid(struct nfsd4_compound_state *cstate,
* delegation before replying to the GETATTR. See RFC 8881 section
* 18.7.4.
*
- * The current implementation does not support CB_GETATTR yet. However
- * this can avoid recalling the delegation could be added in follow up
- * work.
- *
* Returns 0 if there is no conflict; otherwise an nfs_stat
* code is returned.
*/
__be32
-nfsd4_deleg_getattr_conflict(struct svc_rqst *rqstp, struct inode *inode)
+nfsd4_deleg_getattr_conflict(struct svc_rqst *rqstp, struct inode *inode,
+ bool *modified, u64 *size)
{
- __be32 status;
struct file_lock_context *ctx;
- struct file_lock *fl;
struct nfs4_delegation *dp;
+ struct nfs4_cb_fattr *ncf;
+ struct file_lock *fl;
+ struct iattr attrs;
+ __be32 status;
+ might_sleep();
+
+ *modified = false;
ctx = locks_inode_context(inode);
if (!ctx)
return 0;
@@ -8452,10 +8542,34 @@ nfsd4_deleg_getattr_conflict(struct svc_rqst *rqstp, struct inode *inode)
break_lease:
spin_unlock(&ctx->flc_lock);
nfsd_stats_wdeleg_getattr_inc();
- status = nfserrno(nfsd_open_break_lease(inode, NFSD_MAY_READ));
- if (status != nfserr_jukebox ||
- !nfsd_wait_for_delegreturn(rqstp, inode))
- return status;
+
+ dp = fl->fl_owner;
+ ncf = &dp->dl_cb_fattr;
+ nfs4_cb_getattr(&dp->dl_cb_fattr);
+ wait_on_bit(&ncf->ncf_cb_flags, CB_GETATTR_BUSY, TASK_INTERRUPTIBLE);
+ if (ncf->ncf_cb_status) {
+ status = nfserrno(nfsd_open_break_lease(inode, NFSD_MAY_READ));
+ if (status != nfserr_jukebox ||
+ !nfsd_wait_for_delegreturn(rqstp, inode))
+ return status;
+ }
+ if (!ncf->ncf_file_modified &&
+ (ncf->ncf_initial_cinfo != ncf->ncf_cb_change ||
+ ncf->ncf_cur_fsize != ncf->ncf_cb_fsize))
+ ncf->ncf_file_modified = true;
+ if (ncf->ncf_file_modified) {
+ /*
+ * The server would not update the file's metadata
+ * with the client's modified size.
+ */
+ attrs.ia_mtime = attrs.ia_ctime = current_time(inode);
+ attrs.ia_valid = ATTR_MTIME | ATTR_CTIME;
+ setattr_copy(&nop_mnt_idmap, inode, &attrs);
+ mark_inode_dirty(inode);
+ ncf->ncf_cur_fsize = ncf->ncf_cb_fsize;
+ *size = ncf->ncf_cur_fsize;
+ *modified = true;
+ }
return 0;
}
break;
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index 92c7dde148a4..ec4ed6206df1 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -2530,66 +2530,62 @@ nfsd4_decode_compound(struct nfsd4_compoundargs *argp)
return true;
}
-static __be32 *encode_change(__be32 *p, struct kstat *stat, struct inode *inode,
- struct svc_export *exp)
+static __be32 nfsd4_encode_nfs_fh4(struct xdr_stream *xdr,
+ struct knfsd_fh *fh_handle)
{
- if (exp->ex_flags & NFSEXP_V4ROOT) {
- *p++ = cpu_to_be32(convert_to_wallclock(exp->cd->flush_time));
- *p++ = 0;
- } else
- p = xdr_encode_hyper(p, nfsd4_change_attribute(stat, inode));
- return p;
+ return nfsd4_encode_opaque(xdr, fh_handle->fh_raw, fh_handle->fh_size);
}
+/* This is a frequently-encoded type; open-coded for speed */
static __be32 nfsd4_encode_nfstime4(struct xdr_stream *xdr,
- struct timespec64 *tv)
+ const struct timespec64 *tv)
{
__be32 *p;
p = xdr_reserve_space(xdr, XDR_UNIT * 3);
if (!p)
return nfserr_resource;
-
- p = xdr_encode_hyper(p, (s64)tv->tv_sec);
+ p = xdr_encode_hyper(p, tv->tv_sec);
*p = cpu_to_be32(tv->tv_nsec);
return nfs_ok;
}
-/*
- * ctime (in NFSv4, time_metadata) is not writeable, and the client
- * doesn't really care what resolution could theoretically be stored by
- * the filesystem.
- *
- * The client cares how close together changes can be while still
- * guaranteeing ctime changes. For most filesystems (which have
- * timestamps with nanosecond fields) that is limited by the resolution
- * of the time returned from current_time() (which I'm assuming to be
- * 1/HZ).
- */
-static __be32 *encode_time_delta(__be32 *p, struct inode *inode)
+static __be32 nfsd4_encode_specdata4(struct xdr_stream *xdr,
+ unsigned int major, unsigned int minor)
{
- struct timespec64 ts;
- u32 ns;
+ __be32 status;
- ns = max_t(u32, NSEC_PER_SEC/HZ, inode->i_sb->s_time_gran);
- ts = ns_to_timespec64(ns);
+ status = nfsd4_encode_uint32_t(xdr, major);
+ if (status != nfs_ok)
+ return status;
+ return nfsd4_encode_uint32_t(xdr, minor);
+}
- p = xdr_encode_hyper(p, ts.tv_sec);
- *p++ = cpu_to_be32(ts.tv_nsec);
+static __be32
+nfsd4_encode_change_info4(struct xdr_stream *xdr, const struct nfsd4_change_info *c)
+{
+ __be32 status;
- return p;
+ status = nfsd4_encode_bool(xdr, c->atomic);
+ if (status != nfs_ok)
+ return status;
+ status = nfsd4_encode_changeid4(xdr, c->before_change);
+ if (status != nfs_ok)
+ return status;
+ return nfsd4_encode_changeid4(xdr, c->after_change);
}
-static __be32
-nfsd4_encode_change_info4(struct xdr_stream *xdr, struct nfsd4_change_info *c)
+static __be32 nfsd4_encode_netaddr4(struct xdr_stream *xdr,
+ const struct nfs42_netaddr *addr)
{
- if (xdr_stream_encode_bool(xdr, c->atomic) < 0)
- return nfserr_resource;
- if (xdr_stream_encode_u64(xdr, c->before_change) < 0)
- return nfserr_resource;
- if (xdr_stream_encode_u64(xdr, c->after_change) < 0)
- return nfserr_resource;
- return nfs_ok;
+ __be32 status;
+
+ /* na_r_netid */
+ status = nfsd4_encode_opaque(xdr, addr->netid, addr->netid_len);
+ if (status != nfs_ok)
+ return status;
+ /* na_r_addr */
+ return nfsd4_encode_opaque(xdr, addr->addr, addr->addr_len);
}
/* Encode as an array of strings the string given with components
@@ -2661,9 +2657,6 @@ static __be32 nfsd4_encode_components(struct xdr_stream *xdr, char sep,
return nfsd4_encode_components_esc(xdr, sep, components, 0, 0);
}
-/*
- * encode a location element of a fs_locations structure
- */
static __be32 nfsd4_encode_fs_location4(struct xdr_stream *xdr,
struct nfsd4_fs_location *location)
{
@@ -2676,15 +2669,12 @@ static __be32 nfsd4_encode_fs_location4(struct xdr_stream *xdr,
status = nfsd4_encode_components(xdr, '/', location->path);
if (status)
return status;
- return 0;
+ return nfs_ok;
}
-/*
- * Encode a path in RFC3530 'pathname4' format
- */
-static __be32 nfsd4_encode_path(struct xdr_stream *xdr,
- const struct path *root,
- const struct path *path)
+static __be32 nfsd4_encode_pathname4(struct xdr_stream *xdr,
+ const struct path *root,
+ const struct path *path)
{
struct path cur = *path;
__be32 *p;
@@ -2752,89 +2742,59 @@ out_free:
return err;
}
-static __be32 nfsd4_encode_fsloc_fsroot(struct xdr_stream *xdr,
- struct svc_rqst *rqstp, const struct path *path)
+static __be32 nfsd4_encode_fs_locations4(struct xdr_stream *xdr,
+ struct svc_rqst *rqstp,
+ struct svc_export *exp)
{
+ struct nfsd4_fs_locations *fslocs = &exp->ex_fslocs;
struct svc_export *exp_ps;
- __be32 res;
+ unsigned int i;
+ __be32 status;
+ /* fs_root */
exp_ps = rqst_find_fsidzero_export(rqstp);
if (IS_ERR(exp_ps))
return nfserrno(PTR_ERR(exp_ps));
- res = nfsd4_encode_path(xdr, &exp_ps->ex_path, path);
+ status = nfsd4_encode_pathname4(xdr, &exp_ps->ex_path, &exp->ex_path);
exp_put(exp_ps);
- return res;
-}
-
-/*
- * encode a fs_locations structure
- */
-static __be32 nfsd4_encode_fs_locations(struct xdr_stream *xdr,
- struct svc_rqst *rqstp, struct svc_export *exp)
-{
- __be32 status;
- int i;
- __be32 *p;
- struct nfsd4_fs_locations *fslocs = &exp->ex_fslocs;
-
- status = nfsd4_encode_fsloc_fsroot(xdr, rqstp, &exp->ex_path);
- if (status)
+ if (status != nfs_ok)
return status;
- p = xdr_reserve_space(xdr, 4);
- if (!p)
+
+ /* locations<> */
+ if (xdr_stream_encode_u32(xdr, fslocs->locations_count) != XDR_UNIT)
return nfserr_resource;
- *p++ = cpu_to_be32(fslocs->locations_count);
- for (i=0; i<fslocs->locations_count; i++) {
+ for (i = 0; i < fslocs->locations_count; i++) {
status = nfsd4_encode_fs_location4(xdr, &fslocs->locations[i]);
- if (status)
+ if (status != nfs_ok)
return status;
}
- return 0;
-}
-static u32 nfs4_file_type(umode_t mode)
-{
- switch (mode & S_IFMT) {
- case S_IFIFO: return NF4FIFO;
- case S_IFCHR: return NF4CHR;
- case S_IFDIR: return NF4DIR;
- case S_IFBLK: return NF4BLK;
- case S_IFLNK: return NF4LNK;
- case S_IFREG: return NF4REG;
- case S_IFSOCK: return NF4SOCK;
- default: return NF4BAD;
- }
+ return nfs_ok;
}
-static inline __be32
-nfsd4_encode_aclname(struct xdr_stream *xdr, struct svc_rqst *rqstp,
- struct nfs4_ace *ace)
+static __be32 nfsd4_encode_nfsace4(struct xdr_stream *xdr, struct svc_rqst *rqstp,
+ struct nfs4_ace *ace)
{
+ __be32 status;
+
+ /* type */
+ status = nfsd4_encode_acetype4(xdr, ace->type);
+ if (status != nfs_ok)
+ return nfserr_resource;
+ /* flag */
+ status = nfsd4_encode_aceflag4(xdr, ace->flag);
+ if (status != nfs_ok)
+ return nfserr_resource;
+ /* access mask */
+ status = nfsd4_encode_acemask4(xdr, ace->access_mask & NFS4_ACE_MASK_ALL);
+ if (status != nfs_ok)
+ return nfserr_resource;
+ /* who */
if (ace->whotype != NFS4_ACL_WHO_NAMED)
return nfs4_acl_write_who(xdr, ace->whotype);
- else if (ace->flag & NFS4_ACE_IDENTIFIER_GROUP)
+ if (ace->flag & NFS4_ACE_IDENTIFIER_GROUP)
return nfsd4_encode_group(xdr, rqstp, ace->who_gid);
- else
- return nfsd4_encode_user(xdr, rqstp, ace->who_uid);
-}
-
-static inline __be32
-nfsd4_encode_layout_types(struct xdr_stream *xdr, u32 layout_types)
-{
- __be32 *p;
- unsigned long i = hweight_long(layout_types);
-
- p = xdr_reserve_space(xdr, 4 + 4 * i);
- if (!p)
- return nfserr_resource;
-
- *p++ = cpu_to_be32(i);
-
- for (i = LAYOUT_NFSV4_1_FILES; i < LAYOUT_TYPE_MAX; ++i)
- if (layout_types & (1 << i))
- *p++ = cpu_to_be32(i);
-
- return 0;
+ return nfsd4_encode_user(xdr, rqstp, ace->who_uid);
}
#define WORD0_ABSENT_FS_ATTRS (FATTR4_WORD0_FS_LOCATIONS | FATTR4_WORD0_FSID | \
@@ -2906,12 +2866,12 @@ static int nfsd4_get_mounted_on_ino(struct svc_export *exp, u64 *pino)
}
static __be32
-nfsd4_encode_bitmap(struct xdr_stream *xdr, u32 bmval0, u32 bmval1, u32 bmval2)
+nfsd4_encode_bitmap4(struct xdr_stream *xdr, u32 bmval0, u32 bmval1, u32 bmval2)
{
__be32 *p;
if (bmval2) {
- p = xdr_reserve_space(xdr, 16);
+ p = xdr_reserve_space(xdr, XDR_UNIT * 4);
if (!p)
goto out_resource;
*p++ = cpu_to_be32(3);
@@ -2919,94 +2879,687 @@ nfsd4_encode_bitmap(struct xdr_stream *xdr, u32 bmval0, u32 bmval1, u32 bmval2)
*p++ = cpu_to_be32(bmval1);
*p++ = cpu_to_be32(bmval2);
} else if (bmval1) {
- p = xdr_reserve_space(xdr, 12);
+ p = xdr_reserve_space(xdr, XDR_UNIT * 3);
if (!p)
goto out_resource;
*p++ = cpu_to_be32(2);
*p++ = cpu_to_be32(bmval0);
*p++ = cpu_to_be32(bmval1);
} else {
- p = xdr_reserve_space(xdr, 8);
+ p = xdr_reserve_space(xdr, XDR_UNIT * 2);
if (!p)
goto out_resource;
*p++ = cpu_to_be32(1);
*p++ = cpu_to_be32(bmval0);
}
- return 0;
+ return nfs_ok;
out_resource:
return nfserr_resource;
}
+struct nfsd4_fattr_args {
+ struct svc_rqst *rqstp;
+ struct svc_fh *fhp;
+ struct svc_export *exp;
+ struct dentry *dentry;
+ struct kstat stat;
+ struct kstatfs statfs;
+ struct nfs4_acl *acl;
+ u64 size;
+#ifdef CONFIG_NFSD_V4_SECURITY_LABEL
+ void *context;
+ int contextlen;
+#endif
+ u32 rdattr_err;
+ bool contextsupport;
+ bool ignore_crossmnt;
+};
+
+typedef __be32(*nfsd4_enc_attr)(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args);
+
+static __be32 nfsd4_encode_fattr4__noop(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ return nfs_ok;
+}
+
+static __be32 nfsd4_encode_fattr4__true(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ return nfsd4_encode_bool(xdr, true);
+}
+
+static __be32 nfsd4_encode_fattr4__false(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ return nfsd4_encode_bool(xdr, false);
+}
+
+static __be32 nfsd4_encode_fattr4_supported_attrs(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ struct nfsd4_compoundres *resp = args->rqstp->rq_resp;
+ u32 minorversion = resp->cstate.minorversion;
+ u32 supp[3];
+
+ memcpy(supp, nfsd_suppattrs[minorversion], sizeof(supp));
+ if (!IS_POSIXACL(d_inode(args->dentry)))
+ supp[0] &= ~FATTR4_WORD0_ACL;
+ if (!args->contextsupport)
+ supp[2] &= ~FATTR4_WORD2_SECURITY_LABEL;
+
+ return nfsd4_encode_bitmap4(xdr, supp[0], supp[1], supp[2]);
+}
+
+static __be32 nfsd4_encode_fattr4_type(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ __be32 *p;
+
+ p = xdr_reserve_space(xdr, XDR_UNIT);
+ if (!p)
+ return nfserr_resource;
+
+ switch (args->stat.mode & S_IFMT) {
+ case S_IFIFO:
+ *p = cpu_to_be32(NF4FIFO);
+ break;
+ case S_IFCHR:
+ *p = cpu_to_be32(NF4CHR);
+ break;
+ case S_IFDIR:
+ *p = cpu_to_be32(NF4DIR);
+ break;
+ case S_IFBLK:
+ *p = cpu_to_be32(NF4BLK);
+ break;
+ case S_IFLNK:
+ *p = cpu_to_be32(NF4LNK);
+ break;
+ case S_IFREG:
+ *p = cpu_to_be32(NF4REG);
+ break;
+ case S_IFSOCK:
+ *p = cpu_to_be32(NF4SOCK);
+ break;
+ default:
+ return nfserr_serverfault;
+ }
+
+ return nfs_ok;
+}
+
+static __be32 nfsd4_encode_fattr4_fh_expire_type(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ u32 mask;
+
+ mask = NFS4_FH_PERSISTENT;
+ if (!(args->exp->ex_flags & NFSEXP_NOSUBTREECHECK))
+ mask |= NFS4_FH_VOL_RENAME;
+ return nfsd4_encode_uint32_t(xdr, mask);
+}
+
+static __be32 nfsd4_encode_fattr4_change(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ const struct svc_export *exp = args->exp;
+ u64 c;
+
+ if (unlikely(exp->ex_flags & NFSEXP_V4ROOT)) {
+ u32 flush_time = convert_to_wallclock(exp->cd->flush_time);
+
+ if (xdr_stream_encode_u32(xdr, flush_time) != XDR_UNIT)
+ return nfserr_resource;
+ if (xdr_stream_encode_u32(xdr, 0) != XDR_UNIT)
+ return nfserr_resource;
+ return nfs_ok;
+ }
+
+ c = nfsd4_change_attribute(&args->stat, d_inode(args->dentry));
+ return nfsd4_encode_changeid4(xdr, c);
+}
+
+static __be32 nfsd4_encode_fattr4_size(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ return nfsd4_encode_uint64_t(xdr, args->size);
+}
+
+static __be32 nfsd4_encode_fattr4_fsid(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ __be32 *p;
+
+ p = xdr_reserve_space(xdr, XDR_UNIT * 2 + XDR_UNIT * 2);
+ if (!p)
+ return nfserr_resource;
+
+ if (unlikely(args->exp->ex_fslocs.migrated)) {
+ p = xdr_encode_hyper(p, NFS4_REFERRAL_FSID_MAJOR);
+ xdr_encode_hyper(p, NFS4_REFERRAL_FSID_MINOR);
+ return nfs_ok;
+ }
+ switch (fsid_source(args->fhp)) {
+ case FSIDSOURCE_FSID:
+ p = xdr_encode_hyper(p, (u64)args->exp->ex_fsid);
+ xdr_encode_hyper(p, (u64)0);
+ break;
+ case FSIDSOURCE_DEV:
+ *p++ = xdr_zero;
+ *p++ = cpu_to_be32(MAJOR(args->stat.dev));
+ *p++ = xdr_zero;
+ *p = cpu_to_be32(MINOR(args->stat.dev));
+ break;
+ case FSIDSOURCE_UUID:
+ xdr_encode_opaque_fixed(p, args->exp->ex_uuid, EX_UUID_LEN);
+ break;
+ }
+
+ return nfs_ok;
+}
+
+static __be32 nfsd4_encode_fattr4_lease_time(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ struct nfsd_net *nn = net_generic(SVC_NET(args->rqstp), nfsd_net_id);
+
+ return nfsd4_encode_nfs_lease4(xdr, nn->nfsd4_lease);
+}
+
+static __be32 nfsd4_encode_fattr4_rdattr_error(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ return nfsd4_encode_uint32_t(xdr, args->rdattr_err);
+}
+
+static __be32 nfsd4_encode_fattr4_aclsupport(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ u32 mask;
+
+ mask = 0;
+ if (IS_POSIXACL(d_inode(args->dentry)))
+ mask = ACL4_SUPPORT_ALLOW_ACL | ACL4_SUPPORT_DENY_ACL;
+ return nfsd4_encode_uint32_t(xdr, mask);
+}
+
+static __be32 nfsd4_encode_fattr4_acl(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ struct nfs4_acl *acl = args->acl;
+ struct nfs4_ace *ace;
+ __be32 status;
+
+ /* nfsace4<> */
+ if (!acl) {
+ if (xdr_stream_encode_u32(xdr, 0) != XDR_UNIT)
+ return nfserr_resource;
+ } else {
+ if (xdr_stream_encode_u32(xdr, acl->naces) != XDR_UNIT)
+ return nfserr_resource;
+ for (ace = acl->aces; ace < acl->aces + acl->naces; ace++) {
+ status = nfsd4_encode_nfsace4(xdr, args->rqstp, ace);
+ if (status != nfs_ok)
+ return status;
+ }
+ }
+ return nfs_ok;
+}
+
+static __be32 nfsd4_encode_fattr4_filehandle(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ return nfsd4_encode_nfs_fh4(xdr, &args->fhp->fh_handle);
+}
+
+static __be32 nfsd4_encode_fattr4_fileid(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ return nfsd4_encode_uint64_t(xdr, args->stat.ino);
+}
+
+static __be32 nfsd4_encode_fattr4_files_avail(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ return nfsd4_encode_uint64_t(xdr, args->statfs.f_ffree);
+}
+
+static __be32 nfsd4_encode_fattr4_files_free(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ return nfsd4_encode_uint64_t(xdr, args->statfs.f_ffree);
+}
+
+static __be32 nfsd4_encode_fattr4_files_total(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ return nfsd4_encode_uint64_t(xdr, args->statfs.f_files);
+}
+
+static __be32 nfsd4_encode_fattr4_fs_locations(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ return nfsd4_encode_fs_locations4(xdr, args->rqstp, args->exp);
+}
+
+static __be32 nfsd4_encode_fattr4_maxfilesize(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ struct super_block *sb = args->exp->ex_path.mnt->mnt_sb;
+
+ return nfsd4_encode_uint64_t(xdr, sb->s_maxbytes);
+}
+
+static __be32 nfsd4_encode_fattr4_maxlink(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ return nfsd4_encode_uint32_t(xdr, 255);
+}
+
+static __be32 nfsd4_encode_fattr4_maxname(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ return nfsd4_encode_uint32_t(xdr, args->statfs.f_namelen);
+}
+
+static __be32 nfsd4_encode_fattr4_maxread(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ return nfsd4_encode_uint64_t(xdr, svc_max_payload(args->rqstp));
+}
+
+static __be32 nfsd4_encode_fattr4_maxwrite(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ return nfsd4_encode_uint64_t(xdr, svc_max_payload(args->rqstp));
+}
+
+static __be32 nfsd4_encode_fattr4_mode(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ return nfsd4_encode_mode4(xdr, args->stat.mode & S_IALLUGO);
+}
+
+static __be32 nfsd4_encode_fattr4_numlinks(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ return nfsd4_encode_uint32_t(xdr, args->stat.nlink);
+}
+
+static __be32 nfsd4_encode_fattr4_owner(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ return nfsd4_encode_user(xdr, args->rqstp, args->stat.uid);
+}
+
+static __be32 nfsd4_encode_fattr4_owner_group(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ return nfsd4_encode_group(xdr, args->rqstp, args->stat.gid);
+}
+
+static __be32 nfsd4_encode_fattr4_rawdev(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ return nfsd4_encode_specdata4(xdr, MAJOR(args->stat.rdev),
+ MINOR(args->stat.rdev));
+}
+
+static __be32 nfsd4_encode_fattr4_space_avail(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ u64 avail = (u64)args->statfs.f_bavail * (u64)args->statfs.f_bsize;
+
+ return nfsd4_encode_uint64_t(xdr, avail);
+}
+
+static __be32 nfsd4_encode_fattr4_space_free(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ u64 free = (u64)args->statfs.f_bfree * (u64)args->statfs.f_bsize;
+
+ return nfsd4_encode_uint64_t(xdr, free);
+}
+
+static __be32 nfsd4_encode_fattr4_space_total(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ u64 total = (u64)args->statfs.f_blocks * (u64)args->statfs.f_bsize;
+
+ return nfsd4_encode_uint64_t(xdr, total);
+}
+
+static __be32 nfsd4_encode_fattr4_space_used(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ return nfsd4_encode_uint64_t(xdr, (u64)args->stat.blocks << 9);
+}
+
+static __be32 nfsd4_encode_fattr4_time_access(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ return nfsd4_encode_nfstime4(xdr, &args->stat.atime);
+}
+
+static __be32 nfsd4_encode_fattr4_time_create(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ return nfsd4_encode_nfstime4(xdr, &args->stat.btime);
+}
+
+/*
+ * ctime (in NFSv4, time_metadata) is not writeable, and the client
+ * doesn't really care what resolution could theoretically be stored by
+ * the filesystem.
+ *
+ * The client cares how close together changes can be while still
+ * guaranteeing ctime changes. For most filesystems (which have
+ * timestamps with nanosecond fields) that is limited by the resolution
+ * of the time returned from current_time() (which I'm assuming to be
+ * 1/HZ).
+ */
+static __be32 nfsd4_encode_fattr4_time_delta(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ const struct inode *inode = d_inode(args->dentry);
+ u32 ns = max_t(u32, NSEC_PER_SEC/HZ, inode->i_sb->s_time_gran);
+ struct timespec64 ts = ns_to_timespec64(ns);
+
+ return nfsd4_encode_nfstime4(xdr, &ts);
+}
+
+static __be32 nfsd4_encode_fattr4_time_metadata(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ return nfsd4_encode_nfstime4(xdr, &args->stat.ctime);
+}
+
+static __be32 nfsd4_encode_fattr4_time_modify(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ return nfsd4_encode_nfstime4(xdr, &args->stat.mtime);
+}
+
+static __be32 nfsd4_encode_fattr4_mounted_on_fileid(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ u64 ino;
+ int err;
+
+ if (!args->ignore_crossmnt &&
+ args->dentry == args->exp->ex_path.mnt->mnt_root) {
+ err = nfsd4_get_mounted_on_ino(args->exp, &ino);
+ if (err)
+ return nfserrno(err);
+ } else
+ ino = args->stat.ino;
+
+ return nfsd4_encode_uint64_t(xdr, ino);
+}
+
+#ifdef CONFIG_NFSD_PNFS
+
+static __be32 nfsd4_encode_fattr4_fs_layout_types(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ unsigned long mask = args->exp->ex_layout_types;
+ int i;
+
+ /* Hamming weight of @mask is the number of layout types to return */
+ if (xdr_stream_encode_u32(xdr, hweight_long(mask)) != XDR_UNIT)
+ return nfserr_resource;
+ for (i = LAYOUT_NFSV4_1_FILES; i < LAYOUT_TYPE_MAX; ++i)
+ if (mask & BIT(i)) {
+ /* layouttype4 */
+ if (xdr_stream_encode_u32(xdr, i) != XDR_UNIT)
+ return nfserr_resource;
+ }
+ return nfs_ok;
+}
+
+static __be32 nfsd4_encode_fattr4_layout_types(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ unsigned long mask = args->exp->ex_layout_types;
+ int i;
+
+ /* Hamming weight of @mask is the number of layout types to return */
+ if (xdr_stream_encode_u32(xdr, hweight_long(mask)) != XDR_UNIT)
+ return nfserr_resource;
+ for (i = LAYOUT_NFSV4_1_FILES; i < LAYOUT_TYPE_MAX; ++i)
+ if (mask & BIT(i)) {
+ /* layouttype4 */
+ if (xdr_stream_encode_u32(xdr, i) != XDR_UNIT)
+ return nfserr_resource;
+ }
+ return nfs_ok;
+}
+
+static __be32 nfsd4_encode_fattr4_layout_blksize(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ return nfsd4_encode_uint32_t(xdr, args->stat.blksize);
+}
+
+#endif
+
+static __be32 nfsd4_encode_fattr4_suppattr_exclcreat(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ struct nfsd4_compoundres *resp = args->rqstp->rq_resp;
+ u32 supp[3];
+
+ memcpy(supp, nfsd_suppattrs[resp->cstate.minorversion], sizeof(supp));
+ supp[0] &= NFSD_SUPPATTR_EXCLCREAT_WORD0;
+ supp[1] &= NFSD_SUPPATTR_EXCLCREAT_WORD1;
+ supp[2] &= NFSD_SUPPATTR_EXCLCREAT_WORD2;
+
+ return nfsd4_encode_bitmap4(xdr, supp[0], supp[1], supp[2]);
+}
+
+#ifdef CONFIG_NFSD_V4_SECURITY_LABEL
+static __be32 nfsd4_encode_fattr4_sec_label(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ return nfsd4_encode_security_label(xdr, args->rqstp,
+ args->context, args->contextlen);
+}
+#endif
+
+static __be32 nfsd4_encode_fattr4_xattr_support(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ int err = xattr_supports_user_prefix(d_inode(args->dentry));
+
+ return nfsd4_encode_bool(xdr, err == 0);
+}
+
+static const nfsd4_enc_attr nfsd4_enc_fattr4_encode_ops[] = {
+ [FATTR4_SUPPORTED_ATTRS] = nfsd4_encode_fattr4_supported_attrs,
+ [FATTR4_TYPE] = nfsd4_encode_fattr4_type,
+ [FATTR4_FH_EXPIRE_TYPE] = nfsd4_encode_fattr4_fh_expire_type,
+ [FATTR4_CHANGE] = nfsd4_encode_fattr4_change,
+ [FATTR4_SIZE] = nfsd4_encode_fattr4_size,
+ [FATTR4_LINK_SUPPORT] = nfsd4_encode_fattr4__true,
+ [FATTR4_SYMLINK_SUPPORT] = nfsd4_encode_fattr4__true,
+ [FATTR4_NAMED_ATTR] = nfsd4_encode_fattr4__false,
+ [FATTR4_FSID] = nfsd4_encode_fattr4_fsid,
+ [FATTR4_UNIQUE_HANDLES] = nfsd4_encode_fattr4__true,
+ [FATTR4_LEASE_TIME] = nfsd4_encode_fattr4_lease_time,
+ [FATTR4_RDATTR_ERROR] = nfsd4_encode_fattr4_rdattr_error,
+ [FATTR4_ACL] = nfsd4_encode_fattr4_acl,
+ [FATTR4_ACLSUPPORT] = nfsd4_encode_fattr4_aclsupport,
+ [FATTR4_ARCHIVE] = nfsd4_encode_fattr4__noop,
+ [FATTR4_CANSETTIME] = nfsd4_encode_fattr4__true,
+ [FATTR4_CASE_INSENSITIVE] = nfsd4_encode_fattr4__false,
+ [FATTR4_CASE_PRESERVING] = nfsd4_encode_fattr4__true,
+ [FATTR4_CHOWN_RESTRICTED] = nfsd4_encode_fattr4__true,
+ [FATTR4_FILEHANDLE] = nfsd4_encode_fattr4_filehandle,
+ [FATTR4_FILEID] = nfsd4_encode_fattr4_fileid,
+ [FATTR4_FILES_AVAIL] = nfsd4_encode_fattr4_files_avail,
+ [FATTR4_FILES_FREE] = nfsd4_encode_fattr4_files_free,
+ [FATTR4_FILES_TOTAL] = nfsd4_encode_fattr4_files_total,
+ [FATTR4_FS_LOCATIONS] = nfsd4_encode_fattr4_fs_locations,
+ [FATTR4_HIDDEN] = nfsd4_encode_fattr4__noop,
+ [FATTR4_HOMOGENEOUS] = nfsd4_encode_fattr4__true,
+ [FATTR4_MAXFILESIZE] = nfsd4_encode_fattr4_maxfilesize,
+ [FATTR4_MAXLINK] = nfsd4_encode_fattr4_maxlink,
+ [FATTR4_MAXNAME] = nfsd4_encode_fattr4_maxname,
+ [FATTR4_MAXREAD] = nfsd4_encode_fattr4_maxread,
+ [FATTR4_MAXWRITE] = nfsd4_encode_fattr4_maxwrite,
+ [FATTR4_MIMETYPE] = nfsd4_encode_fattr4__noop,
+ [FATTR4_MODE] = nfsd4_encode_fattr4_mode,
+ [FATTR4_NO_TRUNC] = nfsd4_encode_fattr4__true,
+ [FATTR4_NUMLINKS] = nfsd4_encode_fattr4_numlinks,
+ [FATTR4_OWNER] = nfsd4_encode_fattr4_owner,
+ [FATTR4_OWNER_GROUP] = nfsd4_encode_fattr4_owner_group,
+ [FATTR4_QUOTA_AVAIL_HARD] = nfsd4_encode_fattr4__noop,
+ [FATTR4_QUOTA_AVAIL_SOFT] = nfsd4_encode_fattr4__noop,
+ [FATTR4_QUOTA_USED] = nfsd4_encode_fattr4__noop,
+ [FATTR4_RAWDEV] = nfsd4_encode_fattr4_rawdev,
+ [FATTR4_SPACE_AVAIL] = nfsd4_encode_fattr4_space_avail,
+ [FATTR4_SPACE_FREE] = nfsd4_encode_fattr4_space_free,
+ [FATTR4_SPACE_TOTAL] = nfsd4_encode_fattr4_space_total,
+ [FATTR4_SPACE_USED] = nfsd4_encode_fattr4_space_used,
+ [FATTR4_SYSTEM] = nfsd4_encode_fattr4__noop,
+ [FATTR4_TIME_ACCESS] = nfsd4_encode_fattr4_time_access,
+ [FATTR4_TIME_ACCESS_SET] = nfsd4_encode_fattr4__noop,
+ [FATTR4_TIME_BACKUP] = nfsd4_encode_fattr4__noop,
+ [FATTR4_TIME_CREATE] = nfsd4_encode_fattr4_time_create,
+ [FATTR4_TIME_DELTA] = nfsd4_encode_fattr4_time_delta,
+ [FATTR4_TIME_METADATA] = nfsd4_encode_fattr4_time_metadata,
+ [FATTR4_TIME_MODIFY] = nfsd4_encode_fattr4_time_modify,
+ [FATTR4_TIME_MODIFY_SET] = nfsd4_encode_fattr4__noop,
+ [FATTR4_MOUNTED_ON_FILEID] = nfsd4_encode_fattr4_mounted_on_fileid,
+ [FATTR4_DIR_NOTIF_DELAY] = nfsd4_encode_fattr4__noop,
+ [FATTR4_DIRENT_NOTIF_DELAY] = nfsd4_encode_fattr4__noop,
+ [FATTR4_DACL] = nfsd4_encode_fattr4__noop,
+ [FATTR4_SACL] = nfsd4_encode_fattr4__noop,
+ [FATTR4_CHANGE_POLICY] = nfsd4_encode_fattr4__noop,
+ [FATTR4_FS_STATUS] = nfsd4_encode_fattr4__noop,
+
+#ifdef CONFIG_NFSD_PNFS
+ [FATTR4_FS_LAYOUT_TYPES] = nfsd4_encode_fattr4_fs_layout_types,
+ [FATTR4_LAYOUT_HINT] = nfsd4_encode_fattr4__noop,
+ [FATTR4_LAYOUT_TYPES] = nfsd4_encode_fattr4_layout_types,
+ [FATTR4_LAYOUT_BLKSIZE] = nfsd4_encode_fattr4_layout_blksize,
+ [FATTR4_LAYOUT_ALIGNMENT] = nfsd4_encode_fattr4__noop,
+#else
+ [FATTR4_FS_LAYOUT_TYPES] = nfsd4_encode_fattr4__noop,
+ [FATTR4_LAYOUT_HINT] = nfsd4_encode_fattr4__noop,
+ [FATTR4_LAYOUT_TYPES] = nfsd4_encode_fattr4__noop,
+ [FATTR4_LAYOUT_BLKSIZE] = nfsd4_encode_fattr4__noop,
+ [FATTR4_LAYOUT_ALIGNMENT] = nfsd4_encode_fattr4__noop,
+#endif
+
+ [FATTR4_FS_LOCATIONS_INFO] = nfsd4_encode_fattr4__noop,
+ [FATTR4_MDSTHRESHOLD] = nfsd4_encode_fattr4__noop,
+ [FATTR4_RETENTION_GET] = nfsd4_encode_fattr4__noop,
+ [FATTR4_RETENTION_SET] = nfsd4_encode_fattr4__noop,
+ [FATTR4_RETENTEVT_GET] = nfsd4_encode_fattr4__noop,
+ [FATTR4_RETENTEVT_SET] = nfsd4_encode_fattr4__noop,
+ [FATTR4_RETENTION_HOLD] = nfsd4_encode_fattr4__noop,
+ [FATTR4_MODE_SET_MASKED] = nfsd4_encode_fattr4__noop,
+ [FATTR4_SUPPATTR_EXCLCREAT] = nfsd4_encode_fattr4_suppattr_exclcreat,
+ [FATTR4_FS_CHARSET_CAP] = nfsd4_encode_fattr4__noop,
+ [FATTR4_CLONE_BLKSIZE] = nfsd4_encode_fattr4__noop,
+ [FATTR4_SPACE_FREED] = nfsd4_encode_fattr4__noop,
+ [FATTR4_CHANGE_ATTR_TYPE] = nfsd4_encode_fattr4__noop,
+
+#ifdef CONFIG_NFSD_V4_SECURITY_LABEL
+ [FATTR4_SEC_LABEL] = nfsd4_encode_fattr4_sec_label,
+#else
+ [FATTR4_SEC_LABEL] = nfsd4_encode_fattr4__noop,
+#endif
+
+ [FATTR4_MODE_UMASK] = nfsd4_encode_fattr4__noop,
+ [FATTR4_XATTR_SUPPORT] = nfsd4_encode_fattr4_xattr_support,
+};
+
/*
* Note: @fhp can be NULL; in this case, we might have to compose the filehandle
* ourselves.
*/
static __be32
-nfsd4_encode_fattr(struct xdr_stream *xdr, struct svc_fh *fhp,
- struct svc_export *exp,
- struct dentry *dentry, u32 *bmval,
- struct svc_rqst *rqstp, int ignore_crossmnt)
+nfsd4_encode_fattr4(struct svc_rqst *rqstp, struct xdr_stream *xdr,
+ struct svc_fh *fhp, struct svc_export *exp,
+ struct dentry *dentry, const u32 *bmval,
+ int ignore_crossmnt)
{
- u32 bmval0 = bmval[0];
- u32 bmval1 = bmval[1];
- u32 bmval2 = bmval[2];
- struct kstat stat;
+ struct nfsd4_fattr_args args;
struct svc_fh *tempfh = NULL;
- struct kstatfs statfs;
- __be32 *p, *attrlen_p;
int starting_len = xdr->buf->len;
+ __be32 *attrlen_p, status;
int attrlen_offset;
- u32 dummy;
- u64 dummy64;
- u32 rdattr_err = 0;
- __be32 status;
int err;
- struct nfs4_acl *acl = NULL;
-#ifdef CONFIG_NFSD_V4_SECURITY_LABEL
- void *context = NULL;
- int contextlen;
-#endif
- bool contextsupport = false;
struct nfsd4_compoundres *resp = rqstp->rq_resp;
u32 minorversion = resp->cstate.minorversion;
struct path path = {
.mnt = exp->ex_path.mnt,
.dentry = dentry,
};
- struct nfsd_net *nn = net_generic(SVC_NET(rqstp), nfsd_net_id);
+ union {
+ u32 attrmask[3];
+ unsigned long mask[2];
+ } u;
+ bool file_modified;
+ unsigned long bit;
+ u64 size = 0;
+
+ WARN_ON_ONCE(bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1);
+ WARN_ON_ONCE(!nfsd_attrs_supported(minorversion, bmval));
+
+ args.rqstp = rqstp;
+ args.exp = exp;
+ args.dentry = dentry;
+ args.ignore_crossmnt = (ignore_crossmnt != 0);
- BUG_ON(bmval1 & NFSD_WRITEONLY_ATTRS_WORD1);
- BUG_ON(!nfsd_attrs_supported(minorversion, bmval));
+ /*
+ * Make a local copy of the attribute bitmap that can be modified.
+ */
+ memset(&u, 0, sizeof(u));
+ u.attrmask[0] = bmval[0];
+ u.attrmask[1] = bmval[1];
+ u.attrmask[2] = bmval[2];
+ args.rdattr_err = 0;
if (exp->ex_fslocs.migrated) {
- status = fattr_handle_absent_fs(&bmval0, &bmval1, &bmval2, &rdattr_err);
+ status = fattr_handle_absent_fs(&u.attrmask[0], &u.attrmask[1],
+ &u.attrmask[2], &args.rdattr_err);
if (status)
goto out;
}
- if (bmval0 & (FATTR4_WORD0_CHANGE | FATTR4_WORD0_SIZE)) {
- status = nfsd4_deleg_getattr_conflict(rqstp, d_inode(dentry));
+ args.size = 0;
+ if (u.attrmask[0] & (FATTR4_WORD0_CHANGE | FATTR4_WORD0_SIZE)) {
+ status = nfsd4_deleg_getattr_conflict(rqstp, d_inode(dentry),
+ &file_modified, &size);
if (status)
goto out;
}
- err = vfs_getattr(&path, &stat,
+ err = vfs_getattr(&path, &args.stat,
STATX_BASIC_STATS | STATX_BTIME | STATX_CHANGE_COOKIE,
AT_STATX_SYNC_AS_STAT);
if (err)
goto out_nfserr;
- if (!(stat.result_mask & STATX_BTIME))
+ args.size = file_modified ? size : args.stat.size;
+
+ if (!(args.stat.result_mask & STATX_BTIME))
/* underlying FS does not offer btime so we can't share it */
- bmval1 &= ~FATTR4_WORD1_TIME_CREATE;
- if ((bmval0 & (FATTR4_WORD0_FILES_AVAIL | FATTR4_WORD0_FILES_FREE |
+ u.attrmask[1] &= ~FATTR4_WORD1_TIME_CREATE;
+ if ((u.attrmask[0] & (FATTR4_WORD0_FILES_AVAIL | FATTR4_WORD0_FILES_FREE |
FATTR4_WORD0_FILES_TOTAL | FATTR4_WORD0_MAXNAME)) ||
- (bmval1 & (FATTR4_WORD1_SPACE_AVAIL | FATTR4_WORD1_SPACE_FREE |
+ (u.attrmask[1] & (FATTR4_WORD1_SPACE_AVAIL | FATTR4_WORD1_SPACE_FREE |
FATTR4_WORD1_SPACE_TOTAL))) {
- err = vfs_statfs(&path, &statfs);
+ err = vfs_statfs(&path, &args.statfs);
if (err)
goto out_nfserr;
}
- if ((bmval0 & (FATTR4_WORD0_FILEHANDLE | FATTR4_WORD0_FSID)) && !fhp) {
+ if ((u.attrmask[0] & (FATTR4_WORD0_FILEHANDLE | FATTR4_WORD0_FSID)) &&
+ !fhp) {
tempfh = kmalloc(sizeof(struct svc_fh), GFP_KERNEL);
status = nfserr_jukebox;
if (!tempfh)
@@ -3015,12 +3568,15 @@ nfsd4_encode_fattr(struct xdr_stream *xdr, struct svc_fh *fhp,
status = fh_compose(tempfh, exp, dentry, NULL);
if (status)
goto out;
- fhp = tempfh;
- }
- if (bmval0 & FATTR4_WORD0_ACL) {
- err = nfsd4_get_nfs4_acl(rqstp, dentry, &acl);
+ args.fhp = tempfh;
+ } else
+ args.fhp = fhp;
+
+ args.acl = NULL;
+ if (u.attrmask[0] & FATTR4_WORD0_ACL) {
+ err = nfsd4_get_nfs4_acl(rqstp, dentry, &args.acl);
if (err == -EOPNOTSUPP)
- bmval0 &= ~FATTR4_WORD0_ACL;
+ u.attrmask[0] &= ~FATTR4_WORD0_ACL;
else if (err == -EINVAL) {
status = nfserr_attrnotsupp;
goto out;
@@ -3028,452 +3584,53 @@ nfsd4_encode_fattr(struct xdr_stream *xdr, struct svc_fh *fhp,
goto out_nfserr;
}
+ args.contextsupport = false;
+
#ifdef CONFIG_NFSD_V4_SECURITY_LABEL
- if ((bmval2 & FATTR4_WORD2_SECURITY_LABEL) ||
- bmval0 & FATTR4_WORD0_SUPPORTED_ATTRS) {
+ args.context = NULL;
+ if ((u.attrmask[2] & FATTR4_WORD2_SECURITY_LABEL) ||
+ u.attrmask[0] & FATTR4_WORD0_SUPPORTED_ATTRS) {
if (exp->ex_flags & NFSEXP_SECURITY_LABEL)
err = security_inode_getsecctx(d_inode(dentry),
- &context, &contextlen);
+ &args.context, &args.contextlen);
else
err = -EOPNOTSUPP;
- contextsupport = (err == 0);
- if (bmval2 & FATTR4_WORD2_SECURITY_LABEL) {
+ args.contextsupport = (err == 0);
+ if (u.attrmask[2] & FATTR4_WORD2_SECURITY_LABEL) {
if (err == -EOPNOTSUPP)
- bmval2 &= ~FATTR4_WORD2_SECURITY_LABEL;
+ u.attrmask[2] &= ~FATTR4_WORD2_SECURITY_LABEL;
else if (err)
goto out_nfserr;
}
}
#endif /* CONFIG_NFSD_V4_SECURITY_LABEL */
- status = nfsd4_encode_bitmap(xdr, bmval0, bmval1, bmval2);
+ /* attrmask */
+ status = nfsd4_encode_bitmap4(xdr, u.attrmask[0],
+ u.attrmask[1], u.attrmask[2]);
if (status)
goto out;
+ /* attr_vals */
attrlen_offset = xdr->buf->len;
attrlen_p = xdr_reserve_space(xdr, XDR_UNIT);
if (!attrlen_p)
goto out_resource;
-
- if (bmval0 & FATTR4_WORD0_SUPPORTED_ATTRS) {
- u32 supp[3];
-
- memcpy(supp, nfsd_suppattrs[minorversion], sizeof(supp));
-
- if (!IS_POSIXACL(dentry->d_inode))
- supp[0] &= ~FATTR4_WORD0_ACL;
- if (!contextsupport)
- supp[2] &= ~FATTR4_WORD2_SECURITY_LABEL;
- if (!supp[2]) {
- p = xdr_reserve_space(xdr, 12);
- if (!p)
- goto out_resource;
- *p++ = cpu_to_be32(2);
- *p++ = cpu_to_be32(supp[0]);
- *p++ = cpu_to_be32(supp[1]);
- } else {
- p = xdr_reserve_space(xdr, 16);
- if (!p)
- goto out_resource;
- *p++ = cpu_to_be32(3);
- *p++ = cpu_to_be32(supp[0]);
- *p++ = cpu_to_be32(supp[1]);
- *p++ = cpu_to_be32(supp[2]);
- }
- }
- if (bmval0 & FATTR4_WORD0_TYPE) {
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- goto out_resource;
- dummy = nfs4_file_type(stat.mode);
- if (dummy == NF4BAD) {
- status = nfserr_serverfault;
+ for_each_set_bit(bit, (const unsigned long *)&u.mask,
+ ARRAY_SIZE(nfsd4_enc_fattr4_encode_ops)) {
+ status = nfsd4_enc_fattr4_encode_ops[bit](xdr, &args);
+ if (status != nfs_ok)
goto out;
- }
- *p++ = cpu_to_be32(dummy);
- }
- if (bmval0 & FATTR4_WORD0_FH_EXPIRE_TYPE) {
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- goto out_resource;
- if (exp->ex_flags & NFSEXP_NOSUBTREECHECK)
- *p++ = cpu_to_be32(NFS4_FH_PERSISTENT);
- else
- *p++ = cpu_to_be32(NFS4_FH_PERSISTENT|
- NFS4_FH_VOL_RENAME);
}
- if (bmval0 & FATTR4_WORD0_CHANGE) {
- p = xdr_reserve_space(xdr, 8);
- if (!p)
- goto out_resource;
- p = encode_change(p, &stat, d_inode(dentry), exp);
- }
- if (bmval0 & FATTR4_WORD0_SIZE) {
- p = xdr_reserve_space(xdr, 8);
- if (!p)
- goto out_resource;
- p = xdr_encode_hyper(p, stat.size);
- }
- if (bmval0 & FATTR4_WORD0_LINK_SUPPORT) {
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- goto out_resource;
- *p++ = cpu_to_be32(1);
- }
- if (bmval0 & FATTR4_WORD0_SYMLINK_SUPPORT) {
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- goto out_resource;
- *p++ = cpu_to_be32(1);
- }
- if (bmval0 & FATTR4_WORD0_NAMED_ATTR) {
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- goto out_resource;
- *p++ = cpu_to_be32(0);
- }
- if (bmval0 & FATTR4_WORD0_FSID) {
- p = xdr_reserve_space(xdr, 16);
- if (!p)
- goto out_resource;
- if (exp->ex_fslocs.migrated) {
- p = xdr_encode_hyper(p, NFS4_REFERRAL_FSID_MAJOR);
- p = xdr_encode_hyper(p, NFS4_REFERRAL_FSID_MINOR);
- } else switch(fsid_source(fhp)) {
- case FSIDSOURCE_FSID:
- p = xdr_encode_hyper(p, (u64)exp->ex_fsid);
- p = xdr_encode_hyper(p, (u64)0);
- break;
- case FSIDSOURCE_DEV:
- *p++ = cpu_to_be32(0);
- *p++ = cpu_to_be32(MAJOR(stat.dev));
- *p++ = cpu_to_be32(0);
- *p++ = cpu_to_be32(MINOR(stat.dev));
- break;
- case FSIDSOURCE_UUID:
- p = xdr_encode_opaque_fixed(p, exp->ex_uuid,
- EX_UUID_LEN);
- break;
- }
- }
- if (bmval0 & FATTR4_WORD0_UNIQUE_HANDLES) {
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- goto out_resource;
- *p++ = cpu_to_be32(0);
- }
- if (bmval0 & FATTR4_WORD0_LEASE_TIME) {
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- goto out_resource;
- *p++ = cpu_to_be32(nn->nfsd4_lease);
- }
- if (bmval0 & FATTR4_WORD0_RDATTR_ERROR) {
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- goto out_resource;
- *p++ = cpu_to_be32(rdattr_err);
- }
- if (bmval0 & FATTR4_WORD0_ACL) {
- struct nfs4_ace *ace;
-
- if (acl == NULL) {
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- goto out_resource;
-
- *p++ = cpu_to_be32(0);
- goto out_acl;
- }
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- goto out_resource;
- *p++ = cpu_to_be32(acl->naces);
-
- for (ace = acl->aces; ace < acl->aces + acl->naces; ace++) {
- p = xdr_reserve_space(xdr, 4*3);
- if (!p)
- goto out_resource;
- *p++ = cpu_to_be32(ace->type);
- *p++ = cpu_to_be32(ace->flag);
- *p++ = cpu_to_be32(ace->access_mask &
- NFS4_ACE_MASK_ALL);
- status = nfsd4_encode_aclname(xdr, rqstp, ace);
- if (status)
- goto out;
- }
- }
-out_acl:
- if (bmval0 & FATTR4_WORD0_ACLSUPPORT) {
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- goto out_resource;
- *p++ = cpu_to_be32(IS_POSIXACL(dentry->d_inode) ?
- ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL : 0);
- }
- if (bmval0 & FATTR4_WORD0_CANSETTIME) {
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- goto out_resource;
- *p++ = cpu_to_be32(1);
- }
- if (bmval0 & FATTR4_WORD0_CASE_INSENSITIVE) {
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- goto out_resource;
- *p++ = cpu_to_be32(0);
- }
- if (bmval0 & FATTR4_WORD0_CASE_PRESERVING) {
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- goto out_resource;
- *p++ = cpu_to_be32(1);
- }
- if (bmval0 & FATTR4_WORD0_CHOWN_RESTRICTED) {
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- goto out_resource;
- *p++ = cpu_to_be32(1);
- }
- if (bmval0 & FATTR4_WORD0_FILEHANDLE) {
- p = xdr_reserve_space(xdr, fhp->fh_handle.fh_size + 4);
- if (!p)
- goto out_resource;
- p = xdr_encode_opaque(p, &fhp->fh_handle.fh_raw,
- fhp->fh_handle.fh_size);
- }
- if (bmval0 & FATTR4_WORD0_FILEID) {
- p = xdr_reserve_space(xdr, 8);
- if (!p)
- goto out_resource;
- p = xdr_encode_hyper(p, stat.ino);
- }
- if (bmval0 & FATTR4_WORD0_FILES_AVAIL) {
- p = xdr_reserve_space(xdr, 8);
- if (!p)
- goto out_resource;
- p = xdr_encode_hyper(p, (u64) statfs.f_ffree);
- }
- if (bmval0 & FATTR4_WORD0_FILES_FREE) {
- p = xdr_reserve_space(xdr, 8);
- if (!p)
- goto out_resource;
- p = xdr_encode_hyper(p, (u64) statfs.f_ffree);
- }
- if (bmval0 & FATTR4_WORD0_FILES_TOTAL) {
- p = xdr_reserve_space(xdr, 8);
- if (!p)
- goto out_resource;
- p = xdr_encode_hyper(p, (u64) statfs.f_files);
- }
- if (bmval0 & FATTR4_WORD0_FS_LOCATIONS) {
- status = nfsd4_encode_fs_locations(xdr, rqstp, exp);
- if (status)
- goto out;
- }
- if (bmval0 & FATTR4_WORD0_HOMOGENEOUS) {
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- goto out_resource;
- *p++ = cpu_to_be32(1);
- }
- if (bmval0 & FATTR4_WORD0_MAXFILESIZE) {
- p = xdr_reserve_space(xdr, 8);
- if (!p)
- goto out_resource;
- p = xdr_encode_hyper(p, exp->ex_path.mnt->mnt_sb->s_maxbytes);
- }
- if (bmval0 & FATTR4_WORD0_MAXLINK) {
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- goto out_resource;
- *p++ = cpu_to_be32(255);
- }
- if (bmval0 & FATTR4_WORD0_MAXNAME) {
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- goto out_resource;
- *p++ = cpu_to_be32(statfs.f_namelen);
- }
- if (bmval0 & FATTR4_WORD0_MAXREAD) {
- p = xdr_reserve_space(xdr, 8);
- if (!p)
- goto out_resource;
- p = xdr_encode_hyper(p, (u64) svc_max_payload(rqstp));
- }
- if (bmval0 & FATTR4_WORD0_MAXWRITE) {
- p = xdr_reserve_space(xdr, 8);
- if (!p)
- goto out_resource;
- p = xdr_encode_hyper(p, (u64) svc_max_payload(rqstp));
- }
- if (bmval1 & FATTR4_WORD1_MODE) {
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- goto out_resource;
- *p++ = cpu_to_be32(stat.mode & S_IALLUGO);
- }
- if (bmval1 & FATTR4_WORD1_NO_TRUNC) {
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- goto out_resource;
- *p++ = cpu_to_be32(1);
- }
- if (bmval1 & FATTR4_WORD1_NUMLINKS) {
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- goto out_resource;
- *p++ = cpu_to_be32(stat.nlink);
- }
- if (bmval1 & FATTR4_WORD1_OWNER) {
- status = nfsd4_encode_user(xdr, rqstp, stat.uid);
- if (status)
- goto out;
- }
- if (bmval1 & FATTR4_WORD1_OWNER_GROUP) {
- status = nfsd4_encode_group(xdr, rqstp, stat.gid);
- if (status)
- goto out;
- }
- if (bmval1 & FATTR4_WORD1_RAWDEV) {
- p = xdr_reserve_space(xdr, 8);
- if (!p)
- goto out_resource;
- *p++ = cpu_to_be32((u32) MAJOR(stat.rdev));
- *p++ = cpu_to_be32((u32) MINOR(stat.rdev));
- }
- if (bmval1 & FATTR4_WORD1_SPACE_AVAIL) {
- p = xdr_reserve_space(xdr, 8);
- if (!p)
- goto out_resource;
- dummy64 = (u64)statfs.f_bavail * (u64)statfs.f_bsize;
- p = xdr_encode_hyper(p, dummy64);
- }
- if (bmval1 & FATTR4_WORD1_SPACE_FREE) {
- p = xdr_reserve_space(xdr, 8);
- if (!p)
- goto out_resource;
- dummy64 = (u64)statfs.f_bfree * (u64)statfs.f_bsize;
- p = xdr_encode_hyper(p, dummy64);
- }
- if (bmval1 & FATTR4_WORD1_SPACE_TOTAL) {
- p = xdr_reserve_space(xdr, 8);
- if (!p)
- goto out_resource;
- dummy64 = (u64)statfs.f_blocks * (u64)statfs.f_bsize;
- p = xdr_encode_hyper(p, dummy64);
- }
- if (bmval1 & FATTR4_WORD1_SPACE_USED) {
- p = xdr_reserve_space(xdr, 8);
- if (!p)
- goto out_resource;
- dummy64 = (u64)stat.blocks << 9;
- p = xdr_encode_hyper(p, dummy64);
- }
- if (bmval1 & FATTR4_WORD1_TIME_ACCESS) {
- status = nfsd4_encode_nfstime4(xdr, &stat.atime);
- if (status)
- goto out;
- }
- if (bmval1 & FATTR4_WORD1_TIME_CREATE) {
- status = nfsd4_encode_nfstime4(xdr, &stat.btime);
- if (status)
- goto out;
- }
- if (bmval1 & FATTR4_WORD1_TIME_DELTA) {
- p = xdr_reserve_space(xdr, 12);
- if (!p)
- goto out_resource;
- p = encode_time_delta(p, d_inode(dentry));
- }
- if (bmval1 & FATTR4_WORD1_TIME_METADATA) {
- status = nfsd4_encode_nfstime4(xdr, &stat.ctime);
- if (status)
- goto out;
- }
- if (bmval1 & FATTR4_WORD1_TIME_MODIFY) {
- status = nfsd4_encode_nfstime4(xdr, &stat.mtime);
- if (status)
- goto out;
- }
- if (bmval1 & FATTR4_WORD1_MOUNTED_ON_FILEID) {
- u64 ino = stat.ino;
-
- p = xdr_reserve_space(xdr, 8);
- if (!p)
- goto out_resource;
- /*
- * Get ino of mountpoint in parent filesystem, if not ignoring
- * crossmount and this is the root of a cross-mounted
- * filesystem.
- */
- if (ignore_crossmnt == 0 &&
- dentry == exp->ex_path.mnt->mnt_root) {
- err = nfsd4_get_mounted_on_ino(exp, &ino);
- if (err)
- goto out_nfserr;
- }
- p = xdr_encode_hyper(p, ino);
- }
-#ifdef CONFIG_NFSD_PNFS
- if (bmval1 & FATTR4_WORD1_FS_LAYOUT_TYPES) {
- status = nfsd4_encode_layout_types(xdr, exp->ex_layout_types);
- if (status)
- goto out;
- }
-
- if (bmval2 & FATTR4_WORD2_LAYOUT_TYPES) {
- status = nfsd4_encode_layout_types(xdr, exp->ex_layout_types);
- if (status)
- goto out;
- }
-
- if (bmval2 & FATTR4_WORD2_LAYOUT_BLKSIZE) {
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- goto out_resource;
- *p++ = cpu_to_be32(stat.blksize);
- }
-#endif /* CONFIG_NFSD_PNFS */
- if (bmval2 & FATTR4_WORD2_SUPPATTR_EXCLCREAT) {
- u32 supp[3];
-
- memcpy(supp, nfsd_suppattrs[minorversion], sizeof(supp));
- supp[0] &= NFSD_SUPPATTR_EXCLCREAT_WORD0;
- supp[1] &= NFSD_SUPPATTR_EXCLCREAT_WORD1;
- supp[2] &= NFSD_SUPPATTR_EXCLCREAT_WORD2;
-
- status = nfsd4_encode_bitmap(xdr, supp[0], supp[1], supp[2]);
- if (status)
- goto out;
- }
-
-#ifdef CONFIG_NFSD_V4_SECURITY_LABEL
- if (bmval2 & FATTR4_WORD2_SECURITY_LABEL) {
- status = nfsd4_encode_security_label(xdr, rqstp, context,
- contextlen);
- if (status)
- goto out;
- }
-#endif
-
- if (bmval2 & FATTR4_WORD2_XATTR_SUPPORT) {
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- goto out_resource;
- err = xattr_supports_user_prefix(d_inode(dentry));
- *p++ = cpu_to_be32(err == 0);
- }
-
*attrlen_p = cpu_to_be32(xdr->buf->len - attrlen_offset - XDR_UNIT);
status = nfs_ok;
out:
#ifdef CONFIG_NFSD_V4_SECURITY_LABEL
- if (context)
- security_release_secctx(context, contextlen);
+ if (args.context)
+ security_release_secctx(args.context, args.contextlen);
#endif /* CONFIG_NFSD_V4_SECURITY_LABEL */
- kfree(acl);
+ kfree(args.acl);
if (tempfh) {
fh_put(tempfh);
kfree(tempfh);
@@ -3514,12 +3671,28 @@ __be32 nfsd4_encode_fattr_to_buf(__be32 **p, int words,
__be32 ret;
svcxdr_init_encode_from_buffer(&xdr, &dummy, *p, words << 2);
- ret = nfsd4_encode_fattr(&xdr, fhp, exp, dentry, bmval, rqstp,
- ignore_crossmnt);
+ ret = nfsd4_encode_fattr4(rqstp, &xdr, fhp, exp, dentry, bmval,
+ ignore_crossmnt);
*p = xdr.p;
return ret;
}
+/*
+ * The buffer space for this field was reserved during a previous
+ * call to nfsd4_encode_entry4().
+ */
+static void nfsd4_encode_entry4_nfs_cookie4(const struct nfsd4_readdir *readdir,
+ u64 offset)
+{
+ __be64 cookie = cpu_to_be64(offset);
+ struct xdr_stream *xdr = readdir->xdr;
+
+ if (!readdir->cookie_offset)
+ return;
+ write_bytes_to_xdr_buf(xdr->buf, readdir->cookie_offset, &cookie,
+ sizeof(cookie));
+}
+
static inline int attributes_need_mount(u32 *bmval)
{
if (bmval[0] & ~(FATTR4_WORD0_RDATTR_ERROR | FATTR4_WORD0_LEASE_TIME))
@@ -3530,8 +3703,8 @@ static inline int attributes_need_mount(u32 *bmval)
}
static __be32
-nfsd4_encode_dirent_fattr(struct xdr_stream *xdr, struct nfsd4_readdir *cd,
- const char *name, int namlen)
+nfsd4_encode_entry4_fattr(struct nfsd4_readdir *cd, const char *name,
+ int namlen)
{
struct svc_export *exp = cd->rd_fhp->fh_export;
struct dentry *dentry;
@@ -3574,33 +3747,34 @@ nfsd4_encode_dirent_fattr(struct xdr_stream *xdr, struct nfsd4_readdir *cd,
}
out_encode:
- nfserr = nfsd4_encode_fattr(xdr, NULL, exp, dentry, cd->rd_bmval,
- cd->rd_rqstp, ignore_crossmnt);
+ nfserr = nfsd4_encode_fattr4(cd->rd_rqstp, cd->xdr, NULL, exp, dentry,
+ cd->rd_bmval, ignore_crossmnt);
out_put:
dput(dentry);
exp_put(exp);
return nfserr;
}
-static __be32 *
-nfsd4_encode_rdattr_error(struct xdr_stream *xdr, __be32 nfserr)
+static __be32
+nfsd4_encode_entry4_rdattr_error(struct xdr_stream *xdr, __be32 nfserr)
{
- __be32 *p;
-
- p = xdr_reserve_space(xdr, 20);
- if (!p)
- return NULL;
- *p++ = htonl(2);
- *p++ = htonl(FATTR4_WORD0_RDATTR_ERROR); /* bmval0 */
- *p++ = htonl(0); /* bmval1 */
+ __be32 status;
- *p++ = htonl(4); /* attribute length */
- *p++ = nfserr; /* no htonl */
- return p;
+ /* attrmask */
+ status = nfsd4_encode_bitmap4(xdr, FATTR4_WORD0_RDATTR_ERROR, 0, 0);
+ if (status != nfs_ok)
+ return status;
+ /* attr_vals */
+ if (xdr_stream_encode_u32(xdr, XDR_UNIT) != XDR_UNIT)
+ return nfserr_resource;
+ /* rdattr_error */
+ if (xdr_stream_encode_be32(xdr, nfserr) != XDR_UNIT)
+ return nfserr_resource;
+ return nfs_ok;
}
static int
-nfsd4_encode_dirent(void *ccdv, const char *name, int namlen,
+nfsd4_encode_entry4(void *ccdv, const char *name, int namlen,
loff_t offset, u64 ino, unsigned int d_type)
{
struct readdir_cd *ccd = ccdv;
@@ -3611,8 +3785,6 @@ nfsd4_encode_dirent(void *ccdv, const char *name, int namlen,
u32 name_and_cookie;
int entry_bytes;
__be32 nfserr = nfserr_toosmall;
- __be64 wire_offset;
- __be32 *p;
/* In nfsv4, "." and ".." never make it onto the wire.. */
if (name && isdotent(name, namlen)) {
@@ -3620,24 +3792,19 @@ nfsd4_encode_dirent(void *ccdv, const char *name, int namlen,
return 0;
}
- if (cd->cookie_offset) {
- wire_offset = cpu_to_be64(offset);
- write_bytes_to_xdr_buf(xdr->buf, cd->cookie_offset,
- &wire_offset, 8);
- }
+ /* Encode the previous entry's cookie value */
+ nfsd4_encode_entry4_nfs_cookie4(cd, offset);
- p = xdr_reserve_space(xdr, 4);
- if (!p)
+ if (xdr_stream_encode_item_present(xdr) != XDR_UNIT)
goto fail;
- *p++ = xdr_one; /* mark entry present */
+
+ /* Reserve send buffer space for this entry's cookie value. */
cookie_offset = xdr->buf->len;
- p = xdr_reserve_space(xdr, 3*4 + namlen);
- if (!p)
+ if (nfsd4_encode_nfs_cookie4(xdr, OFFSET_MAX) != nfs_ok)
goto fail;
- p = xdr_encode_hyper(p, OFFSET_MAX); /* offset of next entry */
- p = xdr_encode_array(p, name, namlen); /* name length & name */
-
- nfserr = nfsd4_encode_dirent_fattr(xdr, cd, name, namlen);
+ if (nfsd4_encode_component4(xdr, name, namlen) != nfs_ok)
+ goto fail;
+ nfserr = nfsd4_encode_entry4_fattr(cd, name, namlen);
switch (nfserr) {
case nfs_ok:
break;
@@ -3668,8 +3835,7 @@ nfsd4_encode_dirent(void *ccdv, const char *name, int namlen,
*/
if (!(cd->rd_bmval[0] & FATTR4_WORD0_RDATTR_ERROR))
goto fail;
- p = nfsd4_encode_rdattr_error(xdr, nfserr);
- if (p == NULL) {
+ if (nfsd4_encode_entry4_rdattr_error(xdr, nfserr)) {
nfserr = nfserr_toosmall;
goto fail;
}
@@ -3727,18 +3893,26 @@ nfsd4_encode_clientid4(struct xdr_stream *xdr, const clientid_t *clientid)
return nfs_ok;
}
+/* This is a frequently-encoded item; open-coded for speed */
static __be32
-nfsd4_encode_stateid(struct xdr_stream *xdr, stateid_t *sid)
+nfsd4_encode_stateid4(struct xdr_stream *xdr, const stateid_t *sid)
{
__be32 *p;
- p = xdr_reserve_space(xdr, sizeof(stateid_t));
+ p = xdr_reserve_space(xdr, NFS4_STATEID_SIZE);
if (!p)
return nfserr_resource;
*p++ = cpu_to_be32(sid->si_generation);
- p = xdr_encode_opaque_fixed(p, &sid->si_opaque,
- sizeof(stateid_opaque_t));
- return 0;
+ memcpy(p, &sid->si_opaque, sizeof(sid->si_opaque));
+ return nfs_ok;
+}
+
+static __be32
+nfsd4_encode_sessionid4(struct xdr_stream *xdr,
+ const struct nfs4_sessionid *sessionid)
+{
+ return nfsd4_encode_opaque_fixed(xdr, sessionid->data,
+ NFS4_MAX_SESSIONID_LEN);
}
static __be32
@@ -3747,14 +3921,14 @@ nfsd4_encode_access(struct nfsd4_compoundres *resp, __be32 nfserr,
{
struct nfsd4_access *access = &u->access;
struct xdr_stream *xdr = resp->xdr;
- __be32 *p;
+ __be32 status;
- p = xdr_reserve_space(xdr, 8);
- if (!p)
- return nfserr_resource;
- *p++ = cpu_to_be32(access->ac_supported);
- *p++ = cpu_to_be32(access->ac_resp_access);
- return 0;
+ /* supported */
+ status = nfsd4_encode_uint32_t(xdr, access->ac_supported);
+ if (status != nfs_ok)
+ return status;
+ /* access */
+ return nfsd4_encode_uint32_t(xdr, access->ac_resp_access);
}
static __be32 nfsd4_encode_bind_conn_to_session(struct nfsd4_compoundres *resp, __be32 nfserr,
@@ -3762,17 +3936,16 @@ static __be32 nfsd4_encode_bind_conn_to_session(struct nfsd4_compoundres *resp,
{
struct nfsd4_bind_conn_to_session *bcts = &u->bind_conn_to_session;
struct xdr_stream *xdr = resp->xdr;
- __be32 *p;
- p = xdr_reserve_space(xdr, NFS4_MAX_SESSIONID_LEN + 8);
- if (!p)
+ /* bctsr_sessid */
+ nfserr = nfsd4_encode_sessionid4(xdr, &bcts->sessionid);
+ if (nfserr != nfs_ok)
+ return nfserr;
+ /* bctsr_dir */
+ if (xdr_stream_encode_u32(xdr, bcts->dir) != XDR_UNIT)
return nfserr_resource;
- p = xdr_encode_opaque_fixed(p, bcts->sessionid.data,
- NFS4_MAX_SESSIONID_LEN);
- *p++ = cpu_to_be32(bcts->dir);
- /* Upshifting from TCP to RDMA is not supported */
- *p++ = cpu_to_be32(0);
- return 0;
+ /* bctsr_use_conn_in_rdma_mode */
+ return nfsd4_encode_bool(xdr, false);
}
static __be32
@@ -3782,7 +3955,8 @@ nfsd4_encode_close(struct nfsd4_compoundres *resp, __be32 nfserr,
struct nfsd4_close *close = &u->close;
struct xdr_stream *xdr = resp->xdr;
- return nfsd4_encode_stateid(xdr, &close->cl_stateid);
+ /* open_stateid */
+ return nfsd4_encode_stateid4(xdr, &close->cl_stateid);
}
@@ -3802,11 +3976,13 @@ nfsd4_encode_create(struct nfsd4_compoundres *resp, __be32 nfserr,
struct nfsd4_create *create = &u->create;
struct xdr_stream *xdr = resp->xdr;
+ /* cinfo */
nfserr = nfsd4_encode_change_info4(xdr, &create->cr_cinfo);
if (nfserr)
return nfserr;
- return nfsd4_encode_bitmap(xdr, create->cr_bmval[0],
- create->cr_bmval[1], create->cr_bmval[2]);
+ /* attrset */
+ return nfsd4_encode_bitmap4(xdr, create->cr_bmval[0],
+ create->cr_bmval[1], create->cr_bmval[2]);
}
static __be32
@@ -3817,65 +3993,56 @@ nfsd4_encode_getattr(struct nfsd4_compoundres *resp, __be32 nfserr,
struct svc_fh *fhp = getattr->ga_fhp;
struct xdr_stream *xdr = resp->xdr;
- return nfsd4_encode_fattr(xdr, fhp, fhp->fh_export, fhp->fh_dentry,
- getattr->ga_bmval, resp->rqstp, 0);
+ /* obj_attributes */
+ return nfsd4_encode_fattr4(resp->rqstp, xdr, fhp, fhp->fh_export,
+ fhp->fh_dentry, getattr->ga_bmval, 0);
}
static __be32
nfsd4_encode_getfh(struct nfsd4_compoundres *resp, __be32 nfserr,
union nfsd4_op_u *u)
{
- struct svc_fh **fhpp = &u->getfh;
struct xdr_stream *xdr = resp->xdr;
- struct svc_fh *fhp = *fhpp;
- unsigned int len;
- __be32 *p;
+ struct svc_fh *fhp = u->getfh;
- len = fhp->fh_handle.fh_size;
- p = xdr_reserve_space(xdr, len + 4);
- if (!p)
- return nfserr_resource;
- p = xdr_encode_opaque(p, &fhp->fh_handle.fh_raw, len);
- return 0;
+ /* object */
+ return nfsd4_encode_nfs_fh4(xdr, &fhp->fh_handle);
}
-/*
-* Including all fields other than the name, a LOCK4denied structure requires
-* 8(clientid) + 4(namelen) + 8(offset) + 8(length) + 4(type) = 32 bytes.
-*/
static __be32
-nfsd4_encode_lock_denied(struct xdr_stream *xdr, struct nfsd4_lock_denied *ld)
+nfsd4_encode_lock_owner4(struct xdr_stream *xdr, const clientid_t *clientid,
+ const struct xdr_netobj *owner)
{
- struct xdr_netobj *conf = &ld->ld_owner;
- __be32 *p;
+ __be32 status;
-again:
- p = xdr_reserve_space(xdr, 32 + XDR_LEN(conf->len));
- if (!p) {
- /*
- * Don't fail to return the result just because we can't
- * return the conflicting open:
- */
- if (conf->len) {
- kfree(conf->data);
- conf->len = 0;
- conf->data = NULL;
- goto again;
- }
+ /* clientid */
+ status = nfsd4_encode_clientid4(xdr, clientid);
+ if (status != nfs_ok)
+ return status;
+ /* owner */
+ return nfsd4_encode_opaque(xdr, owner->data, owner->len);
+}
+
+static __be32
+nfsd4_encode_lock4denied(struct xdr_stream *xdr,
+ const struct nfsd4_lock_denied *ld)
+{
+ __be32 status;
+
+ /* offset */
+ status = nfsd4_encode_offset4(xdr, ld->ld_start);
+ if (status != nfs_ok)
+ return status;
+ /* length */
+ status = nfsd4_encode_length4(xdr, ld->ld_length);
+ if (status != nfs_ok)
+ return status;
+ /* locktype */
+ if (xdr_stream_encode_u32(xdr, ld->ld_type) != XDR_UNIT)
return nfserr_resource;
- }
- p = xdr_encode_hyper(p, ld->ld_start);
- p = xdr_encode_hyper(p, ld->ld_length);
- *p++ = cpu_to_be32(ld->ld_type);
- if (conf->len) {
- p = xdr_encode_opaque_fixed(p, &ld->ld_clientid, 8);
- p = xdr_encode_opaque(p, conf->data, conf->len);
- kfree(conf->data);
- } else { /* non - nfsv4 lock in conflict, no clientid nor owner */
- p = xdr_encode_hyper(p, (u64)0); /* clientid */
- *p++ = cpu_to_be32(0); /* length of owner name */
- }
- return nfserr_denied;
+ /* owner */
+ return nfsd4_encode_lock_owner4(xdr, &ld->ld_clientid,
+ &ld->ld_owner);
}
static __be32
@@ -3884,13 +4051,21 @@ nfsd4_encode_lock(struct nfsd4_compoundres *resp, __be32 nfserr,
{
struct nfsd4_lock *lock = &u->lock;
struct xdr_stream *xdr = resp->xdr;
+ __be32 status;
- if (!nfserr)
- nfserr = nfsd4_encode_stateid(xdr, &lock->lk_resp_stateid);
- else if (nfserr == nfserr_denied)
- nfserr = nfsd4_encode_lock_denied(xdr, &lock->lk_denied);
-
- return nfserr;
+ switch (nfserr) {
+ case nfs_ok:
+ /* resok4 */
+ status = nfsd4_encode_stateid4(xdr, &lock->lk_resp_stateid);
+ break;
+ case nfserr_denied:
+ /* denied */
+ status = nfsd4_encode_lock4denied(xdr, &lock->lk_denied);
+ break;
+ default:
+ return nfserr;
+ }
+ return status != nfs_ok ? status : nfserr;
}
static __be32
@@ -3899,9 +4074,14 @@ nfsd4_encode_lockt(struct nfsd4_compoundres *resp, __be32 nfserr,
{
struct nfsd4_lockt *lockt = &u->lockt;
struct xdr_stream *xdr = resp->xdr;
+ __be32 status;
- if (nfserr == nfserr_denied)
- nfsd4_encode_lock_denied(xdr, &lockt->lt_denied);
+ if (nfserr == nfserr_denied) {
+ /* denied */
+ status = nfsd4_encode_lock4denied(xdr, &lockt->lt_denied);
+ if (status != nfs_ok)
+ return status;
+ }
return nfserr;
}
@@ -3912,7 +4092,8 @@ nfsd4_encode_locku(struct nfsd4_compoundres *resp, __be32 nfserr,
struct nfsd4_locku *locku = &u->locku;
struct xdr_stream *xdr = resp->xdr;
- return nfsd4_encode_stateid(xdr, &locku->lu_stateid);
+ /* lock_stateid */
+ return nfsd4_encode_stateid4(xdr, &locku->lu_stateid);
}
@@ -3926,104 +4107,159 @@ nfsd4_encode_link(struct nfsd4_compoundres *resp, __be32 nfserr,
return nfsd4_encode_change_info4(xdr, &link->li_cinfo);
}
+/*
+ * This implementation does not yet support returning an ACE in an
+ * OPEN that offers a delegation.
+ */
+static __be32
+nfsd4_encode_open_nfsace4(struct xdr_stream *xdr)
+{
+ __be32 status;
+
+ /* type */
+ status = nfsd4_encode_acetype4(xdr, NFS4_ACE_ACCESS_ALLOWED_ACE_TYPE);
+ if (status != nfs_ok)
+ return nfserr_resource;
+ /* flag */
+ status = nfsd4_encode_aceflag4(xdr, 0);
+ if (status != nfs_ok)
+ return nfserr_resource;
+ /* access mask */
+ status = nfsd4_encode_acemask4(xdr, 0);
+ if (status != nfs_ok)
+ return nfserr_resource;
+ /* who - empty for now */
+ if (xdr_stream_encode_u32(xdr, 0) != XDR_UNIT)
+ return nfserr_resource;
+ return nfs_ok;
+}
static __be32
-nfsd4_encode_open(struct nfsd4_compoundres *resp, __be32 nfserr,
- union nfsd4_op_u *u)
+nfsd4_encode_open_read_delegation4(struct xdr_stream *xdr, struct nfsd4_open *open)
{
- struct nfsd4_open *open = &u->open;
- struct xdr_stream *xdr = resp->xdr;
- __be32 *p;
+ __be32 status;
- nfserr = nfsd4_encode_stateid(xdr, &open->op_stateid);
- if (nfserr)
- return nfserr;
- nfserr = nfsd4_encode_change_info4(xdr, &open->op_cinfo);
- if (nfserr)
- return nfserr;
- if (xdr_stream_encode_u32(xdr, open->op_rflags) < 0)
+ /* stateid */
+ status = nfsd4_encode_stateid4(xdr, &open->op_delegate_stateid);
+ if (status != nfs_ok)
+ return status;
+ /* recall */
+ status = nfsd4_encode_bool(xdr, open->op_recall);
+ if (status != nfs_ok)
+ return status;
+ /* permissions */
+ return nfsd4_encode_open_nfsace4(xdr);
+}
+
+static __be32
+nfsd4_encode_nfs_space_limit4(struct xdr_stream *xdr, u64 filesize)
+{
+ /* limitby */
+ if (xdr_stream_encode_u32(xdr, NFS4_LIMIT_SIZE) != XDR_UNIT)
return nfserr_resource;
+ /* filesize */
+ return nfsd4_encode_uint64_t(xdr, filesize);
+}
- nfserr = nfsd4_encode_bitmap(xdr, open->op_bmval[0], open->op_bmval[1],
- open->op_bmval[2]);
- if (nfserr)
- return nfserr;
+static __be32
+nfsd4_encode_open_write_delegation4(struct xdr_stream *xdr,
+ struct nfsd4_open *open)
+{
+ __be32 status;
- p = xdr_reserve_space(xdr, 4);
- if (!p)
+ /* stateid */
+ status = nfsd4_encode_stateid4(xdr, &open->op_delegate_stateid);
+ if (status != nfs_ok)
+ return status;
+ /* recall */
+ status = nfsd4_encode_bool(xdr, open->op_recall);
+ if (status != nfs_ok)
+ return status;
+ /* space_limit */
+ status = nfsd4_encode_nfs_space_limit4(xdr, 0);
+ if (status != nfs_ok)
+ return status;
+ return nfsd4_encode_open_nfsace4(xdr);
+}
+
+static __be32
+nfsd4_encode_open_none_delegation4(struct xdr_stream *xdr,
+ struct nfsd4_open *open)
+{
+ __be32 status = nfs_ok;
+
+ /* ond_why */
+ if (xdr_stream_encode_u32(xdr, open->op_why_no_deleg) != XDR_UNIT)
return nfserr_resource;
+ switch (open->op_why_no_deleg) {
+ case WND4_CONTENTION:
+ /* ond_server_will_push_deleg */
+ status = nfsd4_encode_bool(xdr, false);
+ break;
+ case WND4_RESOURCE:
+ /* ond_server_will_signal_avail */
+ status = nfsd4_encode_bool(xdr, false);
+ }
+ return status;
+}
+
+static __be32
+nfsd4_encode_open_delegation4(struct xdr_stream *xdr, struct nfsd4_open *open)
+{
+ __be32 status;
- *p++ = cpu_to_be32(open->op_delegate_type);
+ /* delegation_type */
+ if (xdr_stream_encode_u32(xdr, open->op_delegate_type) != XDR_UNIT)
+ return nfserr_resource;
switch (open->op_delegate_type) {
case NFS4_OPEN_DELEGATE_NONE:
+ status = nfs_ok;
break;
case NFS4_OPEN_DELEGATE_READ:
- nfserr = nfsd4_encode_stateid(xdr, &open->op_delegate_stateid);
- if (nfserr)
- return nfserr;
- p = xdr_reserve_space(xdr, 20);
- if (!p)
- return nfserr_resource;
- *p++ = cpu_to_be32(open->op_recall);
-
- /*
- * TODO: ACE's in delegations
- */
- *p++ = cpu_to_be32(NFS4_ACE_ACCESS_ALLOWED_ACE_TYPE);
- *p++ = cpu_to_be32(0);
- *p++ = cpu_to_be32(0);
- *p++ = cpu_to_be32(0); /* XXX: is NULL principal ok? */
+ /* read */
+ status = nfsd4_encode_open_read_delegation4(xdr, open);
break;
case NFS4_OPEN_DELEGATE_WRITE:
- nfserr = nfsd4_encode_stateid(xdr, &open->op_delegate_stateid);
- if (nfserr)
- return nfserr;
-
- p = xdr_reserve_space(xdr, XDR_UNIT * 8);
- if (!p)
- return nfserr_resource;
- *p++ = cpu_to_be32(open->op_recall);
-
- /*
- * Always flush on close
- *
- * TODO: space_limit's in delegations
- */
- *p++ = cpu_to_be32(NFS4_LIMIT_SIZE);
- *p++ = xdr_zero;
- *p++ = xdr_zero;
-
- /*
- * TODO: ACE's in delegations
- */
- *p++ = cpu_to_be32(NFS4_ACE_ACCESS_ALLOWED_ACE_TYPE);
- *p++ = cpu_to_be32(0);
- *p++ = cpu_to_be32(0);
- *p++ = cpu_to_be32(0); /* XXX: is NULL principal ok? */
+ /* write */
+ status = nfsd4_encode_open_write_delegation4(xdr, open);
break;
- case NFS4_OPEN_DELEGATE_NONE_EXT: /* 4.1 */
- switch (open->op_why_no_deleg) {
- case WND4_CONTENTION:
- case WND4_RESOURCE:
- p = xdr_reserve_space(xdr, 8);
- if (!p)
- return nfserr_resource;
- *p++ = cpu_to_be32(open->op_why_no_deleg);
- /* deleg signaling not supported yet: */
- *p++ = cpu_to_be32(0);
- break;
- default:
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- return nfserr_resource;
- *p++ = cpu_to_be32(open->op_why_no_deleg);
- }
+ case NFS4_OPEN_DELEGATE_NONE_EXT:
+ /* od_whynone */
+ status = nfsd4_encode_open_none_delegation4(xdr, open);
break;
default:
- BUG();
+ status = nfserr_serverfault;
}
- /* XXX save filehandle here */
- return 0;
+
+ return status;
+}
+
+static __be32
+nfsd4_encode_open(struct nfsd4_compoundres *resp, __be32 nfserr,
+ union nfsd4_op_u *u)
+{
+ struct nfsd4_open *open = &u->open;
+ struct xdr_stream *xdr = resp->xdr;
+
+ /* stateid */
+ nfserr = nfsd4_encode_stateid4(xdr, &open->op_stateid);
+ if (nfserr != nfs_ok)
+ return nfserr;
+ /* cinfo */
+ nfserr = nfsd4_encode_change_info4(xdr, &open->op_cinfo);
+ if (nfserr != nfs_ok)
+ return nfserr;
+ /* rflags */
+ nfserr = nfsd4_encode_uint32_t(xdr, open->op_rflags);
+ if (nfserr != nfs_ok)
+ return nfserr;
+ /* attrset */
+ nfserr = nfsd4_encode_bitmap4(xdr, open->op_bmval[0],
+ open->op_bmval[1], open->op_bmval[2]);
+ if (nfserr != nfs_ok)
+ return nfserr;
+ /* delegation */
+ return nfsd4_encode_open_delegation4(xdr, open);
}
static __be32
@@ -4033,7 +4269,8 @@ nfsd4_encode_open_confirm(struct nfsd4_compoundres *resp, __be32 nfserr,
struct nfsd4_open_confirm *oc = &u->open_confirm;
struct xdr_stream *xdr = resp->xdr;
- return nfsd4_encode_stateid(xdr, &oc->oc_resp_stateid);
+ /* open_stateid */
+ return nfsd4_encode_stateid4(xdr, &oc->oc_resp_stateid);
}
static __be32
@@ -4043,7 +4280,8 @@ nfsd4_encode_open_downgrade(struct nfsd4_compoundres *resp, __be32 nfserr,
struct nfsd4_open_downgrade *od = &u->open_downgrade;
struct xdr_stream *xdr = resp->xdr;
- return nfsd4_encode_stateid(xdr, &od->od_stateid);
+ /* open_stateid */
+ return nfsd4_encode_stateid4(xdr, &od->od_stateid);
}
/*
@@ -4227,90 +4465,83 @@ out_err:
return nfserr;
}
-static __be32
-nfsd4_encode_readdir(struct nfsd4_compoundres *resp, __be32 nfserr,
- union nfsd4_op_u *u)
+static __be32 nfsd4_encode_dirlist4(struct xdr_stream *xdr,
+ struct nfsd4_readdir *readdir,
+ u32 max_payload)
{
- struct nfsd4_readdir *readdir = &u->readdir;
- int maxcount;
- int bytes_left;
+ int bytes_left, maxcount, starting_len = xdr->buf->len;
loff_t offset;
- __be64 wire_offset;
- struct xdr_stream *xdr = resp->xdr;
- int starting_len = xdr->buf->len;
- __be32 *p;
-
- nfserr = nfsd4_encode_verifier4(xdr, &readdir->rd_verf);
- if (nfserr != nfs_ok)
- return nfserr;
+ __be32 status;
/*
* Number of bytes left for directory entries allowing for the
- * final 8 bytes of the readdir and a following failed op:
+ * final 8 bytes of the readdir and a following failed op.
*/
- bytes_left = xdr->buf->buflen - xdr->buf->len
- - COMPOUND_ERR_SLACK_SPACE - 8;
- if (bytes_left < 0) {
- nfserr = nfserr_resource;
- goto err_no_verf;
- }
- maxcount = svc_max_payload(resp->rqstp);
- maxcount = min_t(u32, readdir->rd_maxcount, maxcount);
+ bytes_left = xdr->buf->buflen - xdr->buf->len -
+ COMPOUND_ERR_SLACK_SPACE - XDR_UNIT * 2;
+ if (bytes_left < 0)
+ return nfserr_resource;
+ maxcount = min_t(u32, readdir->rd_maxcount, max_payload);
+
/*
- * Note the rfc defines rd_maxcount as the size of the
- * READDIR4resok structure, which includes the verifier above
- * and the 8 bytes encoded at the end of this function:
+ * The RFC defines rd_maxcount as the size of the
+ * READDIR4resok structure, which includes the verifier
+ * and the 8 bytes encoded at the end of this function.
*/
- if (maxcount < 16) {
- nfserr = nfserr_toosmall;
- goto err_no_verf;
- }
- maxcount = min_t(int, maxcount-16, bytes_left);
+ if (maxcount < XDR_UNIT * 4)
+ return nfserr_toosmall;
+ maxcount = min_t(int, maxcount - XDR_UNIT * 4, bytes_left);
- /* RFC 3530 14.2.24 allows us to ignore dircount when it's 0: */
+ /* RFC 3530 14.2.24 allows us to ignore dircount when it's 0 */
if (!readdir->rd_dircount)
- readdir->rd_dircount = svc_max_payload(resp->rqstp);
+ readdir->rd_dircount = max_payload;
+ /* *entries */
readdir->xdr = xdr;
readdir->rd_maxcount = maxcount;
readdir->common.err = 0;
readdir->cookie_offset = 0;
-
offset = readdir->rd_cookie;
- nfserr = nfsd_readdir(readdir->rd_rqstp, readdir->rd_fhp,
- &offset,
- &readdir->common, nfsd4_encode_dirent);
- if (nfserr == nfs_ok &&
- readdir->common.err == nfserr_toosmall &&
- xdr->buf->len == starting_len + 8) {
- /* nothing encoded; which limit did we hit?: */
- if (maxcount - 16 < bytes_left)
- /* It was the fault of rd_maxcount: */
- nfserr = nfserr_toosmall;
- else
- /* We ran out of buffer space: */
- nfserr = nfserr_resource;
+ status = nfsd_readdir(readdir->rd_rqstp, readdir->rd_fhp, &offset,
+ &readdir->common, nfsd4_encode_entry4);
+ if (status)
+ return status;
+ if (readdir->common.err == nfserr_toosmall &&
+ xdr->buf->len == starting_len) {
+ /* No entries were encoded. Which limit did we hit? */
+ if (maxcount - XDR_UNIT * 4 < bytes_left)
+ /* It was the fault of rd_maxcount */
+ return nfserr_toosmall;
+ /* We ran out of buffer space */
+ return nfserr_resource;
}
- if (nfserr)
- goto err_no_verf;
+ /* Encode the final entry's cookie value */
+ nfsd4_encode_entry4_nfs_cookie4(readdir, offset);
+ /* No entries follow */
+ if (xdr_stream_encode_item_absent(xdr) != XDR_UNIT)
+ return nfserr_resource;
- if (readdir->cookie_offset) {
- wire_offset = cpu_to_be64(offset);
- write_bytes_to_xdr_buf(xdr->buf, readdir->cookie_offset,
- &wire_offset, 8);
- }
+ /* eof */
+ return nfsd4_encode_bool(xdr, readdir->common.err == nfserr_eof);
+}
- p = xdr_reserve_space(xdr, 8);
- if (!p) {
- WARN_ON_ONCE(1);
- goto err_no_verf;
- }
- *p++ = 0; /* no more entries */
- *p++ = htonl(readdir->common.err == nfserr_eof);
+static __be32
+nfsd4_encode_readdir(struct nfsd4_compoundres *resp, __be32 nfserr,
+ union nfsd4_op_u *u)
+{
+ struct nfsd4_readdir *readdir = &u->readdir;
+ struct xdr_stream *xdr = resp->xdr;
+ int starting_len = xdr->buf->len;
- return 0;
-err_no_verf:
- xdr_truncate_encode(xdr, starting_len);
+ /* cookieverf */
+ nfserr = nfsd4_encode_verifier4(xdr, &readdir->rd_verf);
+ if (nfserr != nfs_ok)
+ return nfserr;
+
+ /* reply */
+ nfserr = nfsd4_encode_dirlist4(xdr, readdir, svc_max_payload(resp->rqstp));
+ if (nfserr != nfs_ok)
+ xdr_truncate_encode(xdr, starting_len);
return nfserr;
}
@@ -4338,13 +4569,34 @@ nfsd4_encode_rename(struct nfsd4_compoundres *resp, __be32 nfserr,
}
static __be32
+nfsd4_encode_rpcsec_gss_info(struct xdr_stream *xdr,
+ struct rpcsec_gss_info *info)
+{
+ __be32 status;
+
+ /* oid */
+ if (xdr_stream_encode_opaque(xdr, info->oid.data, info->oid.len) < 0)
+ return nfserr_resource;
+ /* qop */
+ status = nfsd4_encode_qop4(xdr, info->qop);
+ if (status != nfs_ok)
+ return status;
+ /* service */
+ if (xdr_stream_encode_u32(xdr, info->service) != XDR_UNIT)
+ return nfserr_resource;
+
+ return nfs_ok;
+}
+
+static __be32
nfsd4_do_encode_secinfo(struct xdr_stream *xdr, struct svc_export *exp)
{
u32 i, nflavs, supported;
struct exp_flavor_info *flavs;
struct exp_flavor_info def_flavs[2];
- __be32 *p, *flavorsp;
static bool report = true;
+ __be32 *flavorsp;
+ __be32 status;
if (exp->ex_nflavors) {
flavs = exp->ex_flavors;
@@ -4367,10 +4619,9 @@ nfsd4_do_encode_secinfo(struct xdr_stream *xdr, struct svc_export *exp)
}
supported = 0;
- p = xdr_reserve_space(xdr, 4);
- if (!p)
+ flavorsp = xdr_reserve_space(xdr, XDR_UNIT);
+ if (!flavorsp)
return nfserr_resource;
- flavorsp = p++; /* to be backfilled later */
for (i = 0; i < nflavs; i++) {
rpc_authflavor_t pf = flavs[i].pseudoflavor;
@@ -4378,20 +4629,22 @@ nfsd4_do_encode_secinfo(struct xdr_stream *xdr, struct svc_export *exp)
if (rpcauth_get_gssinfo(pf, &info) == 0) {
supported++;
- p = xdr_reserve_space(xdr, 4 + 4 +
- XDR_LEN(info.oid.len) + 4 + 4);
- if (!p)
- return nfserr_resource;
- *p++ = cpu_to_be32(RPC_AUTH_GSS);
- p = xdr_encode_opaque(p, info.oid.data, info.oid.len);
- *p++ = cpu_to_be32(info.qop);
- *p++ = cpu_to_be32(info.service);
+
+ /* flavor */
+ status = nfsd4_encode_uint32_t(xdr, RPC_AUTH_GSS);
+ if (status != nfs_ok)
+ return status;
+ /* flavor_info */
+ status = nfsd4_encode_rpcsec_gss_info(xdr, &info);
+ if (status != nfs_ok)
+ return status;
} else if (pf < RPC_AUTH_MAXFLAVOR) {
supported++;
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- return nfserr_resource;
- *p++ = cpu_to_be32(pf);
+
+ /* flavor */
+ status = nfsd4_encode_uint32_t(xdr, pf);
+ if (status != nfs_ok)
+ return status;
} else {
if (report)
pr_warn("NFS: SECINFO: security flavor %u "
@@ -4401,7 +4654,7 @@ nfsd4_do_encode_secinfo(struct xdr_stream *xdr, struct svc_export *exp)
if (nflavs != supported)
report = false;
- *flavorsp = htonl(supported);
+ *flavorsp = cpu_to_be32(supported);
return 0;
}
@@ -4425,34 +4678,25 @@ nfsd4_encode_secinfo_no_name(struct nfsd4_compoundres *resp, __be32 nfserr,
return nfsd4_do_encode_secinfo(xdr, secinfo->sin_exp);
}
-/*
- * The SETATTR encode routine is special -- it always encodes a bitmap,
- * regardless of the error status.
- */
static __be32
nfsd4_encode_setattr(struct nfsd4_compoundres *resp, __be32 nfserr,
union nfsd4_op_u *u)
{
struct nfsd4_setattr *setattr = &u->setattr;
- struct xdr_stream *xdr = resp->xdr;
- __be32 *p;
+ __be32 status;
- p = xdr_reserve_space(xdr, 16);
- if (!p)
- return nfserr_resource;
- if (nfserr) {
- *p++ = cpu_to_be32(3);
- *p++ = cpu_to_be32(0);
- *p++ = cpu_to_be32(0);
- *p++ = cpu_to_be32(0);
- }
- else {
- *p++ = cpu_to_be32(3);
- *p++ = cpu_to_be32(setattr->sa_bmval[0]);
- *p++ = cpu_to_be32(setattr->sa_bmval[1]);
- *p++ = cpu_to_be32(setattr->sa_bmval[2]);
+ switch (nfserr) {
+ case nfs_ok:
+ /* attrsset */
+ status = nfsd4_encode_bitmap4(resp->xdr, setattr->sa_bmval[0],
+ setattr->sa_bmval[1],
+ setattr->sa_bmval[2]);
+ break;
+ default:
+ /* attrsset */
+ status = nfsd4_encode_bitmap4(resp->xdr, 0, 0, 0);
}
- return nfserr;
+ return status != nfs_ok ? status : nfserr;
}
static __be32
@@ -4488,86 +4732,148 @@ nfsd4_encode_write(struct nfsd4_compoundres *resp, __be32 nfserr,
union nfsd4_op_u *u)
{
struct nfsd4_write *write = &u->write;
+ struct xdr_stream *xdr = resp->xdr;
- if (xdr_stream_encode_u32(resp->xdr, write->wr_bytes_written) < 0)
- return nfserr_resource;
- if (xdr_stream_encode_u32(resp->xdr, write->wr_how_written) < 0)
+ /* count */
+ nfserr = nfsd4_encode_count4(xdr, write->wr_bytes_written);
+ if (nfserr)
+ return nfserr;
+ /* committed */
+ if (xdr_stream_encode_u32(xdr, write->wr_how_written) != XDR_UNIT)
return nfserr_resource;
- return nfsd4_encode_verifier4(resp->xdr, &write->wr_verifier);
+ /* writeverf */
+ return nfsd4_encode_verifier4(xdr, &write->wr_verifier);
}
static __be32
-nfsd4_encode_exchange_id(struct nfsd4_compoundres *resp, __be32 nfserr,
- union nfsd4_op_u *u)
+nfsd4_encode_state_protect_ops4(struct xdr_stream *xdr,
+ struct nfsd4_exchange_id *exid)
{
- struct nfsd4_exchange_id *exid = &u->exchange_id;
- struct xdr_stream *xdr = resp->xdr;
- __be32 *p;
- char *major_id;
- char *server_scope;
- int major_id_sz;
- int server_scope_sz;
- uint64_t minor_id = 0;
- struct nfsd_net *nn = net_generic(SVC_NET(resp->rqstp), nfsd_net_id);
+ __be32 status;
- major_id = nn->nfsd_name;
- major_id_sz = strlen(nn->nfsd_name);
- server_scope = nn->nfsd_name;
- server_scope_sz = strlen(nn->nfsd_name);
+ /* spo_must_enforce */
+ status = nfsd4_encode_bitmap4(xdr, exid->spo_must_enforce[0],
+ exid->spo_must_enforce[1],
+ exid->spo_must_enforce[2]);
+ if (status != nfs_ok)
+ return status;
+ /* spo_must_allow */
+ return nfsd4_encode_bitmap4(xdr, exid->spo_must_allow[0],
+ exid->spo_must_allow[1],
+ exid->spo_must_allow[2]);
+}
- if (nfsd4_encode_clientid4(xdr, &exid->clientid) != nfs_ok)
- return nfserr_resource;
- if (xdr_stream_encode_u32(xdr, exid->seqid) < 0)
- return nfserr_resource;
- if (xdr_stream_encode_u32(xdr, exid->flags) < 0)
- return nfserr_resource;
+static __be32
+nfsd4_encode_state_protect4_r(struct xdr_stream *xdr, struct nfsd4_exchange_id *exid)
+{
+ __be32 status;
- if (xdr_stream_encode_u32(xdr, exid->spa_how) < 0)
+ if (xdr_stream_encode_u32(xdr, exid->spa_how) != XDR_UNIT)
return nfserr_resource;
switch (exid->spa_how) {
case SP4_NONE:
+ status = nfs_ok;
break;
case SP4_MACH_CRED:
- /* spo_must_enforce bitmap: */
- nfserr = nfsd4_encode_bitmap(xdr,
- exid->spo_must_enforce[0],
- exid->spo_must_enforce[1],
- exid->spo_must_enforce[2]);
- if (nfserr)
- return nfserr;
- /* spo_must_allow bitmap: */
- nfserr = nfsd4_encode_bitmap(xdr,
- exid->spo_must_allow[0],
- exid->spo_must_allow[1],
- exid->spo_must_allow[2]);
- if (nfserr)
- return nfserr;
+ /* spr_mach_ops */
+ status = nfsd4_encode_state_protect_ops4(xdr, exid);
break;
default:
- WARN_ON_ONCE(1);
+ status = nfserr_serverfault;
}
+ return status;
+}
- p = xdr_reserve_space(xdr,
- 8 /* so_minor_id */ +
- 4 /* so_major_id.len */ +
- (XDR_QUADLEN(major_id_sz) * 4) +
- 4 /* eir_server_scope.len */ +
- (XDR_QUADLEN(server_scope_sz) * 4) +
- 4 /* eir_server_impl_id.count (0) */);
- if (!p)
+static __be32
+nfsd4_encode_server_owner4(struct xdr_stream *xdr, struct svc_rqst *rqstp)
+{
+ struct nfsd_net *nn = net_generic(SVC_NET(rqstp), nfsd_net_id);
+ __be32 status;
+
+ /* so_minor_id */
+ status = nfsd4_encode_uint64_t(xdr, 0);
+ if (status != nfs_ok)
+ return status;
+ /* so_major_id */
+ return nfsd4_encode_opaque(xdr, nn->nfsd_name, strlen(nn->nfsd_name));
+}
+
+static __be32
+nfsd4_encode_exchange_id(struct nfsd4_compoundres *resp, __be32 nfserr,
+ union nfsd4_op_u *u)
+{
+ struct nfsd_net *nn = net_generic(SVC_NET(resp->rqstp), nfsd_net_id);
+ struct nfsd4_exchange_id *exid = &u->exchange_id;
+ struct xdr_stream *xdr = resp->xdr;
+
+ /* eir_clientid */
+ nfserr = nfsd4_encode_clientid4(xdr, &exid->clientid);
+ if (nfserr != nfs_ok)
+ return nfserr;
+ /* eir_sequenceid */
+ nfserr = nfsd4_encode_sequenceid4(xdr, exid->seqid);
+ if (nfserr != nfs_ok)
+ return nfserr;
+ /* eir_flags */
+ nfserr = nfsd4_encode_uint32_t(xdr, exid->flags);
+ if (nfserr != nfs_ok)
+ return nfserr;
+ /* eir_state_protect */
+ nfserr = nfsd4_encode_state_protect4_r(xdr, exid);
+ if (nfserr != nfs_ok)
+ return nfserr;
+ /* eir_server_owner */
+ nfserr = nfsd4_encode_server_owner4(xdr, resp->rqstp);
+ if (nfserr != nfs_ok)
+ return nfserr;
+ /* eir_server_scope */
+ nfserr = nfsd4_encode_opaque(xdr, nn->nfsd_name,
+ strlen(nn->nfsd_name));
+ if (nfserr != nfs_ok)
+ return nfserr;
+ /* eir_server_impl_id<1> */
+ if (xdr_stream_encode_u32(xdr, 0) != XDR_UNIT)
return nfserr_resource;
- /* The server_owner struct */
- p = xdr_encode_hyper(p, minor_id); /* Minor id */
- /* major id */
- p = xdr_encode_opaque(p, major_id, major_id_sz);
+ return nfs_ok;
+}
- /* Server scope */
- p = xdr_encode_opaque(p, server_scope, server_scope_sz);
+static __be32
+nfsd4_encode_channel_attrs4(struct xdr_stream *xdr,
+ const struct nfsd4_channel_attrs *attrs)
+{
+ __be32 status;
- /* Implementation id */
- *p++ = cpu_to_be32(0); /* zero length nfs_impl_id4 array */
- return 0;
+ /* ca_headerpadsize */
+ status = nfsd4_encode_count4(xdr, 0);
+ if (status != nfs_ok)
+ return status;
+ /* ca_maxrequestsize */
+ status = nfsd4_encode_count4(xdr, attrs->maxreq_sz);
+ if (status != nfs_ok)
+ return status;
+ /* ca_maxresponsesize */
+ status = nfsd4_encode_count4(xdr, attrs->maxresp_sz);
+ if (status != nfs_ok)
+ return status;
+ /* ca_maxresponsesize_cached */
+ status = nfsd4_encode_count4(xdr, attrs->maxresp_cached);
+ if (status != nfs_ok)
+ return status;
+ /* ca_maxoperations */
+ status = nfsd4_encode_count4(xdr, attrs->maxops);
+ if (status != nfs_ok)
+ return status;
+ /* ca_maxrequests */
+ status = nfsd4_encode_count4(xdr, attrs->maxreqs);
+ if (status != nfs_ok)
+ return status;
+ /* ca_rdma_ird<1> */
+ if (xdr_stream_encode_u32(xdr, attrs->nr_rdma_attrs) != XDR_UNIT)
+ return nfserr_resource;
+ if (attrs->nr_rdma_attrs)
+ return nfsd4_encode_uint32_t(xdr, attrs->rdma_attrs);
+ return nfs_ok;
}
static __be32
@@ -4576,52 +4882,25 @@ nfsd4_encode_create_session(struct nfsd4_compoundres *resp, __be32 nfserr,
{
struct nfsd4_create_session *sess = &u->create_session;
struct xdr_stream *xdr = resp->xdr;
- __be32 *p;
-
- p = xdr_reserve_space(xdr, 24);
- if (!p)
- return nfserr_resource;
- p = xdr_encode_opaque_fixed(p, sess->sessionid.data,
- NFS4_MAX_SESSIONID_LEN);
- *p++ = cpu_to_be32(sess->seqid);
- *p++ = cpu_to_be32(sess->flags);
- p = xdr_reserve_space(xdr, 28);
- if (!p)
- return nfserr_resource;
- *p++ = cpu_to_be32(0); /* headerpadsz */
- *p++ = cpu_to_be32(sess->fore_channel.maxreq_sz);
- *p++ = cpu_to_be32(sess->fore_channel.maxresp_sz);
- *p++ = cpu_to_be32(sess->fore_channel.maxresp_cached);
- *p++ = cpu_to_be32(sess->fore_channel.maxops);
- *p++ = cpu_to_be32(sess->fore_channel.maxreqs);
- *p++ = cpu_to_be32(sess->fore_channel.nr_rdma_attrs);
-
- if (sess->fore_channel.nr_rdma_attrs) {
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- return nfserr_resource;
- *p++ = cpu_to_be32(sess->fore_channel.rdma_attrs);
- }
-
- p = xdr_reserve_space(xdr, 28);
- if (!p)
- return nfserr_resource;
- *p++ = cpu_to_be32(0); /* headerpadsz */
- *p++ = cpu_to_be32(sess->back_channel.maxreq_sz);
- *p++ = cpu_to_be32(sess->back_channel.maxresp_sz);
- *p++ = cpu_to_be32(sess->back_channel.maxresp_cached);
- *p++ = cpu_to_be32(sess->back_channel.maxops);
- *p++ = cpu_to_be32(sess->back_channel.maxreqs);
- *p++ = cpu_to_be32(sess->back_channel.nr_rdma_attrs);
-
- if (sess->back_channel.nr_rdma_attrs) {
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- return nfserr_resource;
- *p++ = cpu_to_be32(sess->back_channel.rdma_attrs);
- }
- return 0;
+ /* csr_sessionid */
+ nfserr = nfsd4_encode_sessionid4(xdr, &sess->sessionid);
+ if (nfserr != nfs_ok)
+ return nfserr;
+ /* csr_sequence */
+ nfserr = nfsd4_encode_sequenceid4(xdr, sess->seqid);
+ if (nfserr != nfs_ok)
+ return nfserr;
+ /* csr_flags */
+ nfserr = nfsd4_encode_uint32_t(xdr, sess->flags);
+ if (nfserr != nfs_ok)
+ return nfserr;
+ /* csr_fore_chan_attrs */
+ nfserr = nfsd4_encode_channel_attrs4(xdr, &sess->fore_channel);
+ if (nfserr != nfs_ok)
+ return nfserr;
+ /* csr_back_chan_attrs */
+ return nfsd4_encode_channel_attrs4(xdr, &sess->back_channel);
}
static __be32
@@ -4630,22 +4909,35 @@ nfsd4_encode_sequence(struct nfsd4_compoundres *resp, __be32 nfserr,
{
struct nfsd4_sequence *seq = &u->sequence;
struct xdr_stream *xdr = resp->xdr;
- __be32 *p;
- p = xdr_reserve_space(xdr, NFS4_MAX_SESSIONID_LEN + 20);
- if (!p)
- return nfserr_resource;
- p = xdr_encode_opaque_fixed(p, seq->sessionid.data,
- NFS4_MAX_SESSIONID_LEN);
- *p++ = cpu_to_be32(seq->seqid);
- *p++ = cpu_to_be32(seq->slotid);
+ /* sr_sessionid */
+ nfserr = nfsd4_encode_sessionid4(xdr, &seq->sessionid);
+ if (nfserr != nfs_ok)
+ return nfserr;
+ /* sr_sequenceid */
+ nfserr = nfsd4_encode_sequenceid4(xdr, seq->seqid);
+ if (nfserr != nfs_ok)
+ return nfserr;
+ /* sr_slotid */
+ nfserr = nfsd4_encode_slotid4(xdr, seq->slotid);
+ if (nfserr != nfs_ok)
+ return nfserr;
/* Note slotid's are numbered from zero: */
- *p++ = cpu_to_be32(seq->maxslots - 1); /* sr_highest_slotid */
- *p++ = cpu_to_be32(seq->maxslots - 1); /* sr_target_highest_slotid */
- *p++ = cpu_to_be32(seq->status_flags);
+ /* sr_highest_slotid */
+ nfserr = nfsd4_encode_slotid4(xdr, seq->maxslots - 1);
+ if (nfserr != nfs_ok)
+ return nfserr;
+ /* sr_target_highest_slotid */
+ nfserr = nfsd4_encode_slotid4(xdr, seq->maxslots - 1);
+ if (nfserr != nfs_ok)
+ return nfserr;
+ /* sr_status_flags */
+ nfserr = nfsd4_encode_uint32_t(xdr, seq->status_flags);
+ if (nfserr != nfs_ok)
+ return nfserr;
resp->cstate.data_offset = xdr->buf->len; /* DRC cache data pointer */
- return 0;
+ return nfs_ok;
}
static __be32
@@ -4653,125 +4945,132 @@ nfsd4_encode_test_stateid(struct nfsd4_compoundres *resp, __be32 nfserr,
union nfsd4_op_u *u)
{
struct nfsd4_test_stateid *test_stateid = &u->test_stateid;
- struct xdr_stream *xdr = resp->xdr;
struct nfsd4_test_stateid_id *stateid, *next;
- __be32 *p;
+ struct xdr_stream *xdr = resp->xdr;
- p = xdr_reserve_space(xdr, 4 + (4 * test_stateid->ts_num_ids));
- if (!p)
+ /* tsr_status_codes<> */
+ if (xdr_stream_encode_u32(xdr, test_stateid->ts_num_ids) != XDR_UNIT)
return nfserr_resource;
- *p++ = htonl(test_stateid->ts_num_ids);
-
- list_for_each_entry_safe(stateid, next, &test_stateid->ts_stateid_list, ts_id_list) {
- *p++ = stateid->ts_id_status;
+ list_for_each_entry_safe(stateid, next,
+ &test_stateid->ts_stateid_list, ts_id_list) {
+ if (xdr_stream_encode_be32(xdr, stateid->ts_id_status) != XDR_UNIT)
+ return nfserr_resource;
}
-
- return 0;
+ return nfs_ok;
}
#ifdef CONFIG_NFSD_PNFS
static __be32
-nfsd4_encode_getdeviceinfo(struct nfsd4_compoundres *resp, __be32 nfserr,
- union nfsd4_op_u *u)
+nfsd4_encode_device_addr4(struct xdr_stream *xdr,
+ const struct nfsd4_getdeviceinfo *gdev)
{
- struct nfsd4_getdeviceinfo *gdev = &u->getdeviceinfo;
- struct xdr_stream *xdr = resp->xdr;
+ u32 needed_len, starting_len = xdr->buf->len;
const struct nfsd4_layout_ops *ops;
- u32 starting_len = xdr->buf->len, needed_len;
- __be32 *p;
+ __be32 status;
- p = xdr_reserve_space(xdr, 4);
- if (!p)
+ /* da_layout_type */
+ if (xdr_stream_encode_u32(xdr, gdev->gd_layout_type) != XDR_UNIT)
return nfserr_resource;
-
- *p++ = cpu_to_be32(gdev->gd_layout_type);
-
+ /* da_addr_body */
ops = nfsd4_layout_ops[gdev->gd_layout_type];
- nfserr = ops->encode_getdeviceinfo(xdr, gdev);
- if (nfserr) {
+ status = ops->encode_getdeviceinfo(xdr, gdev);
+ if (status != nfs_ok) {
/*
- * We don't bother to burden the layout drivers with
- * enforcing gd_maxcount, just tell the client to
- * come back with a bigger buffer if it's not enough.
+ * Don't burden the layout drivers with enforcing
+ * gd_maxcount. Just tell the client to come back
+ * with a bigger buffer if it's not enough.
*/
- if (xdr->buf->len + 4 > gdev->gd_maxcount)
+ if (xdr->buf->len + XDR_UNIT > gdev->gd_maxcount)
goto toosmall;
- return nfserr;
+ return status;
}
- if (gdev->gd_notify_types) {
- p = xdr_reserve_space(xdr, 4 + 4);
- if (!p)
- return nfserr_resource;
- *p++ = cpu_to_be32(1); /* bitmap length */
- *p++ = cpu_to_be32(gdev->gd_notify_types);
- } else {
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- return nfserr_resource;
- *p++ = 0;
- }
+ return nfs_ok;
- return 0;
toosmall:
- dprintk("%s: maxcount too small\n", __func__);
- needed_len = xdr->buf->len + 4 /* notifications */;
+ needed_len = xdr->buf->len + XDR_UNIT; /* notifications */
xdr_truncate_encode(xdr, starting_len);
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- return nfserr_resource;
- *p++ = cpu_to_be32(needed_len);
+
+ status = nfsd4_encode_count4(xdr, needed_len);
+ if (status != nfs_ok)
+ return status;
return nfserr_toosmall;
}
static __be32
-nfsd4_encode_layoutget(struct nfsd4_compoundres *resp, __be32 nfserr,
+nfsd4_encode_getdeviceinfo(struct nfsd4_compoundres *resp, __be32 nfserr,
union nfsd4_op_u *u)
{
- struct nfsd4_layoutget *lgp = &u->layoutget;
+ struct nfsd4_getdeviceinfo *gdev = &u->getdeviceinfo;
struct xdr_stream *xdr = resp->xdr;
- const struct nfsd4_layout_ops *ops;
- __be32 *p;
-
- p = xdr_reserve_space(xdr, 36 + sizeof(stateid_opaque_t));
- if (!p)
- return nfserr_resource;
- *p++ = cpu_to_be32(1); /* we always set return-on-close */
- *p++ = cpu_to_be32(lgp->lg_sid.si_generation);
- p = xdr_encode_opaque_fixed(p, &lgp->lg_sid.si_opaque,
- sizeof(stateid_opaque_t));
+ /* gdir_device_addr */
+ nfserr = nfsd4_encode_device_addr4(xdr, gdev);
+ if (nfserr)
+ return nfserr;
+ /* gdir_notification */
+ return nfsd4_encode_bitmap4(xdr, gdev->gd_notify_types, 0, 0);
+}
- *p++ = cpu_to_be32(1); /* we always return a single layout */
- p = xdr_encode_hyper(p, lgp->lg_seg.offset);
- p = xdr_encode_hyper(p, lgp->lg_seg.length);
- *p++ = cpu_to_be32(lgp->lg_seg.iomode);
- *p++ = cpu_to_be32(lgp->lg_layout_type);
+static __be32
+nfsd4_encode_layout4(struct xdr_stream *xdr, const struct nfsd4_layoutget *lgp)
+{
+ const struct nfsd4_layout_ops *ops = nfsd4_layout_ops[lgp->lg_layout_type];
+ __be32 status;
- ops = nfsd4_layout_ops[lgp->lg_layout_type];
+ /* lo_offset */
+ status = nfsd4_encode_offset4(xdr, lgp->lg_seg.offset);
+ if (status != nfs_ok)
+ return status;
+ /* lo_length */
+ status = nfsd4_encode_length4(xdr, lgp->lg_seg.length);
+ if (status != nfs_ok)
+ return status;
+ /* lo_iomode */
+ if (xdr_stream_encode_u32(xdr, lgp->lg_seg.iomode) != XDR_UNIT)
+ return nfserr_resource;
+ /* lo_content */
+ if (xdr_stream_encode_u32(xdr, lgp->lg_layout_type) != XDR_UNIT)
+ return nfserr_resource;
return ops->encode_layoutget(xdr, lgp);
}
static __be32
+nfsd4_encode_layoutget(struct nfsd4_compoundres *resp, __be32 nfserr,
+ union nfsd4_op_u *u)
+{
+ struct nfsd4_layoutget *lgp = &u->layoutget;
+ struct xdr_stream *xdr = resp->xdr;
+
+ /* logr_return_on_close */
+ nfserr = nfsd4_encode_bool(xdr, true);
+ if (nfserr != nfs_ok)
+ return nfserr;
+ /* logr_stateid */
+ nfserr = nfsd4_encode_stateid4(xdr, &lgp->lg_sid);
+ if (nfserr != nfs_ok)
+ return nfserr;
+ /* logr_layout<> */
+ if (xdr_stream_encode_u32(xdr, 1) != XDR_UNIT)
+ return nfserr_resource;
+ return nfsd4_encode_layout4(xdr, lgp);
+}
+
+static __be32
nfsd4_encode_layoutcommit(struct nfsd4_compoundres *resp, __be32 nfserr,
union nfsd4_op_u *u)
{
struct nfsd4_layoutcommit *lcp = &u->layoutcommit;
struct xdr_stream *xdr = resp->xdr;
- __be32 *p;
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- return nfserr_resource;
- *p++ = cpu_to_be32(lcp->lc_size_chg);
- if (lcp->lc_size_chg) {
- p = xdr_reserve_space(xdr, 8);
- if (!p)
- return nfserr_resource;
- p = xdr_encode_hyper(p, lcp->lc_newsize);
- }
-
- return 0;
+ /* ns_sizechanged */
+ nfserr = nfsd4_encode_bool(xdr, lcp->lc_size_chg);
+ if (nfserr != nfs_ok)
+ return nfserr;
+ if (lcp->lc_size_chg)
+ /* ns_size */
+ return nfsd4_encode_length4(xdr, lcp->lc_newsize);
+ return nfs_ok;
}
static __be32
@@ -4780,103 +5079,108 @@ nfsd4_encode_layoutreturn(struct nfsd4_compoundres *resp, __be32 nfserr,
{
struct nfsd4_layoutreturn *lrp = &u->layoutreturn;
struct xdr_stream *xdr = resp->xdr;
- __be32 *p;
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- return nfserr_resource;
- *p++ = cpu_to_be32(lrp->lrs_present);
+ /* lrs_present */
+ nfserr = nfsd4_encode_bool(xdr, lrp->lrs_present);
+ if (nfserr != nfs_ok)
+ return nfserr;
if (lrp->lrs_present)
- return nfsd4_encode_stateid(xdr, &lrp->lr_sid);
- return 0;
+ /* lrs_stateid */
+ return nfsd4_encode_stateid4(xdr, &lrp->lr_sid);
+ return nfs_ok;
}
#endif /* CONFIG_NFSD_PNFS */
static __be32
-nfsd42_encode_write_res(struct nfsd4_compoundres *resp,
- struct nfsd42_write_res *write, bool sync)
+nfsd4_encode_write_response4(struct xdr_stream *xdr,
+ const struct nfsd4_copy *copy)
{
- __be32 *p;
- p = xdr_reserve_space(resp->xdr, 4);
- if (!p)
- return nfserr_resource;
+ const struct nfsd42_write_res *write = &copy->cp_res;
+ u32 count = nfsd4_copy_is_sync(copy) ? 0 : 1;
+ __be32 status;
- if (sync)
- *p++ = cpu_to_be32(0);
- else {
- __be32 nfserr;
- *p++ = cpu_to_be32(1);
- nfserr = nfsd4_encode_stateid(resp->xdr, &write->cb_stateid);
- if (nfserr)
- return nfserr;
+ /* wr_callback_id<1> */
+ if (xdr_stream_encode_u32(xdr, count) != XDR_UNIT)
+ return nfserr_resource;
+ if (count) {
+ status = nfsd4_encode_stateid4(xdr, &write->cb_stateid);
+ if (status != nfs_ok)
+ return status;
}
- p = xdr_reserve_space(resp->xdr, 8 + 4 + NFS4_VERIFIER_SIZE);
- if (!p)
+
+ /* wr_count */
+ status = nfsd4_encode_length4(xdr, write->wr_bytes_written);
+ if (status != nfs_ok)
+ return status;
+ /* wr_committed */
+ if (xdr_stream_encode_u32(xdr, write->wr_stable_how) != XDR_UNIT)
return nfserr_resource;
+ /* wr_writeverf */
+ return nfsd4_encode_verifier4(xdr, &write->wr_verifier);
+}
- p = xdr_encode_hyper(p, write->wr_bytes_written);
- *p++ = cpu_to_be32(write->wr_stable_how);
- p = xdr_encode_opaque_fixed(p, write->wr_verifier.data,
- NFS4_VERIFIER_SIZE);
- return nfs_ok;
+static __be32 nfsd4_encode_copy_requirements4(struct xdr_stream *xdr,
+ const struct nfsd4_copy *copy)
+{
+ __be32 status;
+
+ /* cr_consecutive */
+ status = nfsd4_encode_bool(xdr, true);
+ if (status != nfs_ok)
+ return status;
+ /* cr_synchronous */
+ return nfsd4_encode_bool(xdr, nfsd4_copy_is_sync(copy));
}
static __be32
-nfsd42_encode_nl4_server(struct nfsd4_compoundres *resp, struct nl4_server *ns)
+nfsd4_encode_copy(struct nfsd4_compoundres *resp, __be32 nfserr,
+ union nfsd4_op_u *u)
{
- struct xdr_stream *xdr = resp->xdr;
- struct nfs42_netaddr *addr;
- __be32 *p;
+ struct nfsd4_copy *copy = &u->copy;
- p = xdr_reserve_space(xdr, 4);
- *p++ = cpu_to_be32(ns->nl4_type);
+ nfserr = nfsd4_encode_write_response4(resp->xdr, copy);
+ if (nfserr != nfs_ok)
+ return nfserr;
+ return nfsd4_encode_copy_requirements4(resp->xdr, copy);
+}
+static __be32
+nfsd4_encode_netloc4(struct xdr_stream *xdr, const struct nl4_server *ns)
+{
+ __be32 status;
+
+ if (xdr_stream_encode_u32(xdr, ns->nl4_type) != XDR_UNIT)
+ return nfserr_resource;
switch (ns->nl4_type) {
case NL4_NETADDR:
- addr = &ns->u.nl4_addr;
-
- /* netid_len, netid, uaddr_len, uaddr (port included
- * in RPCBIND_MAXUADDRLEN)
- */
- p = xdr_reserve_space(xdr,
- 4 /* netid len */ +
- (XDR_QUADLEN(addr->netid_len) * 4) +
- 4 /* uaddr len */ +
- (XDR_QUADLEN(addr->addr_len) * 4));
- if (!p)
- return nfserr_resource;
-
- *p++ = cpu_to_be32(addr->netid_len);
- p = xdr_encode_opaque_fixed(p, addr->netid,
- addr->netid_len);
- *p++ = cpu_to_be32(addr->addr_len);
- p = xdr_encode_opaque_fixed(p, addr->addr,
- addr->addr_len);
+ /* nl_addr */
+ status = nfsd4_encode_netaddr4(xdr, &ns->u.nl4_addr);
break;
default:
- WARN_ON_ONCE(ns->nl4_type != NL4_NETADDR);
- return nfserr_inval;
+ status = nfserr_serverfault;
}
-
- return 0;
+ return status;
}
static __be32
-nfsd4_encode_copy(struct nfsd4_compoundres *resp, __be32 nfserr,
- union nfsd4_op_u *u)
+nfsd4_encode_copy_notify(struct nfsd4_compoundres *resp, __be32 nfserr,
+ union nfsd4_op_u *u)
{
- struct nfsd4_copy *copy = &u->copy;
- __be32 *p;
+ struct nfsd4_copy_notify *cn = &u->copy_notify;
+ struct xdr_stream *xdr = resp->xdr;
- nfserr = nfsd42_encode_write_res(resp, &copy->cp_res,
- nfsd4_copy_is_sync(copy));
+ /* cnr_lease_time */
+ nfserr = nfsd4_encode_nfstime4(xdr, &cn->cpn_lease_time);
if (nfserr)
return nfserr;
-
- p = xdr_reserve_space(resp->xdr, 4 + 4);
- *p++ = xdr_one; /* cr_consecutive */
- *p = nfsd4_copy_is_sync(copy) ? xdr_one : xdr_zero;
- return 0;
+ /* cnr_stateid */
+ nfserr = nfsd4_encode_stateid4(xdr, &cn->cpn_cnr_stateid);
+ if (nfserr)
+ return nfserr;
+ /* cnr_source_server<> */
+ if (xdr_stream_encode_u32(xdr, 1) != XDR_UNIT)
+ return nfserr_resource;
+ return nfsd4_encode_netloc4(xdr, cn->cpn_src);
}
static __be32
@@ -4885,14 +5189,15 @@ nfsd4_encode_offload_status(struct nfsd4_compoundres *resp, __be32 nfserr,
{
struct nfsd4_offload_status *os = &u->offload_status;
struct xdr_stream *xdr = resp->xdr;
- __be32 *p;
- p = xdr_reserve_space(xdr, 8 + 4);
- if (!p)
+ /* osr_count */
+ nfserr = nfsd4_encode_length4(xdr, os->count);
+ if (nfserr != nfs_ok)
+ return nfserr;
+ /* osr_complete<1> */
+ if (xdr_stream_encode_u32(xdr, 0) != XDR_UNIT)
return nfserr_resource;
- p = xdr_encode_hyper(p, os->count);
- *p++ = cpu_to_be32(0);
- return nfserr;
+ return nfs_ok;
}
static __be32
@@ -4970,53 +5275,18 @@ out:
}
static __be32
-nfsd4_encode_copy_notify(struct nfsd4_compoundres *resp, __be32 nfserr,
- union nfsd4_op_u *u)
-{
- struct nfsd4_copy_notify *cn = &u->copy_notify;
- struct xdr_stream *xdr = resp->xdr;
- __be32 *p;
-
- if (nfserr)
- return nfserr;
-
- /* 8 sec, 4 nsec */
- p = xdr_reserve_space(xdr, 12);
- if (!p)
- return nfserr_resource;
-
- /* cnr_lease_time */
- p = xdr_encode_hyper(p, cn->cpn_sec);
- *p++ = cpu_to_be32(cn->cpn_nsec);
-
- /* cnr_stateid */
- nfserr = nfsd4_encode_stateid(xdr, &cn->cpn_cnr_stateid);
- if (nfserr)
- return nfserr;
-
- /* cnr_src.nl_nsvr */
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- return nfserr_resource;
-
- *p++ = cpu_to_be32(1);
-
- nfserr = nfsd42_encode_nl4_server(resp, cn->cpn_src);
- return nfserr;
-}
-
-static __be32
nfsd4_encode_seek(struct nfsd4_compoundres *resp, __be32 nfserr,
union nfsd4_op_u *u)
{
struct nfsd4_seek *seek = &u->seek;
- __be32 *p;
-
- p = xdr_reserve_space(resp->xdr, 4 + 8);
- *p++ = cpu_to_be32(seek->seek_eof);
- p = xdr_encode_hyper(p, seek->seek_pos);
+ struct xdr_stream *xdr = resp->xdr;
- return 0;
+ /* sr_eof */
+ nfserr = nfsd4_encode_bool(xdr, seek->seek_eof);
+ if (nfserr != nfs_ok)
+ return nfserr;
+ /* sr_offset */
+ return nfsd4_encode_offset4(xdr, seek->seek_pos);
}
static __be32
diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c
index 846559e4769b..3e15b72f421d 100644
--- a/fs/nfsd/nfsctl.c
+++ b/fs/nfsd/nfsctl.c
@@ -26,6 +26,7 @@
#include "pnfs.h"
#include "filecache.h"
#include "trace.h"
+#include "netlink.h"
/*
* We have a single directory with several nodes in it.
@@ -1496,6 +1497,203 @@ static int create_proc_exports_entry(void)
unsigned int nfsd_net_id;
/**
+ * nfsd_nl_rpc_status_get_start - Prepare rpc_status_get dumpit
+ * @cb: netlink metadata and command arguments
+ *
+ * Return values:
+ * %0: The rpc_status_get command may proceed
+ * %-ENODEV: There is no NFSD running in this namespace
+ */
+int nfsd_nl_rpc_status_get_start(struct netlink_callback *cb)
+{
+ struct nfsd_net *nn = net_generic(sock_net(cb->skb->sk), nfsd_net_id);
+ int ret = -ENODEV;
+
+ mutex_lock(&nfsd_mutex);
+ if (nn->nfsd_serv) {
+ svc_get(nn->nfsd_serv);
+ ret = 0;
+ }
+ mutex_unlock(&nfsd_mutex);
+
+ return ret;
+}
+
+static int nfsd_genl_rpc_status_compose_msg(struct sk_buff *skb,
+ struct netlink_callback *cb,
+ struct nfsd_genl_rqstp *rqstp)
+{
+ void *hdr;
+ u32 i;
+
+ hdr = genlmsg_put(skb, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq,
+ &nfsd_nl_family, 0, NFSD_CMD_RPC_STATUS_GET);
+ if (!hdr)
+ return -ENOBUFS;
+
+ if (nla_put_be32(skb, NFSD_A_RPC_STATUS_XID, rqstp->rq_xid) ||
+ nla_put_u32(skb, NFSD_A_RPC_STATUS_FLAGS, rqstp->rq_flags) ||
+ nla_put_u32(skb, NFSD_A_RPC_STATUS_PROG, rqstp->rq_prog) ||
+ nla_put_u32(skb, NFSD_A_RPC_STATUS_PROC, rqstp->rq_proc) ||
+ nla_put_u8(skb, NFSD_A_RPC_STATUS_VERSION, rqstp->rq_vers) ||
+ nla_put_s64(skb, NFSD_A_RPC_STATUS_SERVICE_TIME,
+ ktime_to_us(rqstp->rq_stime),
+ NFSD_A_RPC_STATUS_PAD))
+ return -ENOBUFS;
+
+ switch (rqstp->rq_saddr.sa_family) {
+ case AF_INET: {
+ const struct sockaddr_in *s_in, *d_in;
+
+ s_in = (const struct sockaddr_in *)&rqstp->rq_saddr;
+ d_in = (const struct sockaddr_in *)&rqstp->rq_daddr;
+ if (nla_put_in_addr(skb, NFSD_A_RPC_STATUS_SADDR4,
+ s_in->sin_addr.s_addr) ||
+ nla_put_in_addr(skb, NFSD_A_RPC_STATUS_DADDR4,
+ d_in->sin_addr.s_addr) ||
+ nla_put_be16(skb, NFSD_A_RPC_STATUS_SPORT,
+ s_in->sin_port) ||
+ nla_put_be16(skb, NFSD_A_RPC_STATUS_DPORT,
+ d_in->sin_port))
+ return -ENOBUFS;
+ break;
+ }
+ case AF_INET6: {
+ const struct sockaddr_in6 *s_in, *d_in;
+
+ s_in = (const struct sockaddr_in6 *)&rqstp->rq_saddr;
+ d_in = (const struct sockaddr_in6 *)&rqstp->rq_daddr;
+ if (nla_put_in6_addr(skb, NFSD_A_RPC_STATUS_SADDR6,
+ &s_in->sin6_addr) ||
+ nla_put_in6_addr(skb, NFSD_A_RPC_STATUS_DADDR6,
+ &d_in->sin6_addr) ||
+ nla_put_be16(skb, NFSD_A_RPC_STATUS_SPORT,
+ s_in->sin6_port) ||
+ nla_put_be16(skb, NFSD_A_RPC_STATUS_DPORT,
+ d_in->sin6_port))
+ return -ENOBUFS;
+ break;
+ }
+ }
+
+ for (i = 0; i < rqstp->rq_opcnt; i++)
+ if (nla_put_u32(skb, NFSD_A_RPC_STATUS_COMPOUND_OPS,
+ rqstp->rq_opnum[i]))
+ return -ENOBUFS;
+
+ genlmsg_end(skb, hdr);
+ return 0;
+}
+
+/**
+ * nfsd_nl_rpc_status_get_dumpit - Handle rpc_status_get dumpit
+ * @skb: reply buffer
+ * @cb: netlink metadata and command arguments
+ *
+ * Returns the size of the reply or a negative errno.
+ */
+int nfsd_nl_rpc_status_get_dumpit(struct sk_buff *skb,
+ struct netlink_callback *cb)
+{
+ struct nfsd_net *nn = net_generic(sock_net(skb->sk), nfsd_net_id);
+ int i, ret, rqstp_index = 0;
+
+ rcu_read_lock();
+
+ for (i = 0; i < nn->nfsd_serv->sv_nrpools; i++) {
+ struct svc_rqst *rqstp;
+
+ if (i < cb->args[0]) /* already consumed */
+ continue;
+
+ rqstp_index = 0;
+ list_for_each_entry_rcu(rqstp,
+ &nn->nfsd_serv->sv_pools[i].sp_all_threads,
+ rq_all) {
+ struct nfsd_genl_rqstp genl_rqstp;
+ unsigned int status_counter;
+
+ if (rqstp_index++ < cb->args[1]) /* already consumed */
+ continue;
+ /*
+ * Acquire rq_status_counter before parsing the rqst
+ * fields. rq_status_counter is set to an odd value in
+ * order to notify the consumers the rqstp fields are
+ * meaningful.
+ */
+ status_counter =
+ smp_load_acquire(&rqstp->rq_status_counter);
+ if (!(status_counter & 1))
+ continue;
+
+ genl_rqstp.rq_xid = rqstp->rq_xid;
+ genl_rqstp.rq_flags = rqstp->rq_flags;
+ genl_rqstp.rq_vers = rqstp->rq_vers;
+ genl_rqstp.rq_prog = rqstp->rq_prog;
+ genl_rqstp.rq_proc = rqstp->rq_proc;
+ genl_rqstp.rq_stime = rqstp->rq_stime;
+ genl_rqstp.rq_opcnt = 0;
+ memcpy(&genl_rqstp.rq_daddr, svc_daddr(rqstp),
+ sizeof(struct sockaddr));
+ memcpy(&genl_rqstp.rq_saddr, svc_addr(rqstp),
+ sizeof(struct sockaddr));
+
+#ifdef CONFIG_NFSD_V4
+ if (rqstp->rq_vers == NFS4_VERSION &&
+ rqstp->rq_proc == NFSPROC4_COMPOUND) {
+ /* NFSv4 compound */
+ struct nfsd4_compoundargs *args;
+ int j;
+
+ args = rqstp->rq_argp;
+ genl_rqstp.rq_opcnt = args->opcnt;
+ for (j = 0; j < genl_rqstp.rq_opcnt; j++)
+ genl_rqstp.rq_opnum[j] =
+ args->ops[j].opnum;
+ }
+#endif /* CONFIG_NFSD_V4 */
+
+ /*
+ * Acquire rq_status_counter before reporting the rqst
+ * fields to the user.
+ */
+ if (smp_load_acquire(&rqstp->rq_status_counter) !=
+ status_counter)
+ continue;
+
+ ret = nfsd_genl_rpc_status_compose_msg(skb, cb,
+ &genl_rqstp);
+ if (ret)
+ goto out;
+ }
+ }
+
+ cb->args[0] = i;
+ cb->args[1] = rqstp_index;
+ ret = skb->len;
+out:
+ rcu_read_unlock();
+
+ return ret;
+}
+
+/**
+ * nfsd_nl_rpc_status_get_done - rpc_status_get dumpit post-processing
+ * @cb: netlink metadata and command arguments
+ *
+ * Return values:
+ * %0: Success
+ */
+int nfsd_nl_rpc_status_get_done(struct netlink_callback *cb)
+{
+ mutex_lock(&nfsd_mutex);
+ nfsd_put(sock_net(cb->skb->sk));
+ mutex_unlock(&nfsd_mutex);
+
+ return 0;
+}
+
+/**
* nfsd_net_init - Prepare the nfsd_net portion of a new net namespace
* @net: a freshly-created network namespace
*
@@ -1589,6 +1787,10 @@ static int __init init_nfsd(void)
retval = register_filesystem(&nfsd_fs_type);
if (retval)
goto out_free_all;
+ retval = genl_register_family(&nfsd_nl_family);
+ if (retval)
+ goto out_free_all;
+
return 0;
out_free_all:
nfsd4_destroy_laundry_wq();
@@ -1613,6 +1815,7 @@ out_free_slabs:
static void __exit exit_nfsd(void)
{
+ genl_unregister_family(&nfsd_nl_family);
unregister_filesystem(&nfsd_fs_type);
nfsd4_destroy_laundry_wq();
unregister_cld_notifier();
diff --git a/fs/nfsd/nfsd.h b/fs/nfsd/nfsd.h
index 11c14faa6c67..f5ff42f41ee7 100644
--- a/fs/nfsd/nfsd.h
+++ b/fs/nfsd/nfsd.h
@@ -62,6 +62,23 @@ struct readdir_cd {
__be32 err; /* 0, nfserr, or nfserr_eof */
};
+/* Maximum number of operations per session compound */
+#define NFSD_MAX_OPS_PER_COMPOUND 50
+
+struct nfsd_genl_rqstp {
+ struct sockaddr rq_daddr;
+ struct sockaddr rq_saddr;
+ unsigned long rq_flags;
+ ktime_t rq_stime;
+ __be32 rq_xid;
+ u32 rq_vers;
+ u32 rq_prog;
+ u32 rq_proc;
+
+ /* NFSv4 compound */
+ u32 rq_opcnt;
+ u32 rq_opnum[NFSD_MAX_OPS_PER_COMPOUND];
+};
extern struct svc_program nfsd_program;
extern const struct svc_version nfsd_version2, nfsd_version3, nfsd_version4;
diff --git a/fs/nfsd/nfsfh.c b/fs/nfsd/nfsfh.c
index 355bf0db3235..dbfa0ac13564 100644
--- a/fs/nfsd/nfsfh.c
+++ b/fs/nfsd/nfsfh.c
@@ -771,7 +771,7 @@ enum fsid_source fsid_source(const struct svc_fh *fhp)
* assume that the new change attr is always logged to stable storage in some
* fashion before the results can be seen.
*/
-u64 nfsd4_change_attribute(struct kstat *stat, struct inode *inode)
+u64 nfsd4_change_attribute(const struct kstat *stat, const struct inode *inode)
{
u64 chattr;
diff --git a/fs/nfsd/nfsfh.h b/fs/nfsd/nfsfh.h
index 40426f899e76..6ebdf7ea27bf 100644
--- a/fs/nfsd/nfsfh.h
+++ b/fs/nfsd/nfsfh.h
@@ -293,7 +293,8 @@ static inline void fh_clear_pre_post_attrs(struct svc_fh *fhp)
fhp->fh_pre_saved = false;
}
-u64 nfsd4_change_attribute(struct kstat *stat, struct inode *inode);
+u64 nfsd4_change_attribute(const struct kstat *stat,
+ const struct inode *inode);
__be32 __must_check fh_fill_pre_attrs(struct svc_fh *fhp);
__be32 fh_fill_post_attrs(struct svc_fh *fhp);
__be32 __must_check fh_fill_both_attrs(struct svc_fh *fhp);
diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c
index c7af1095f6b5..d6122bb2d167 100644
--- a/fs/nfsd/nfssvc.c
+++ b/fs/nfsd/nfssvc.c
@@ -572,7 +572,6 @@ static void nfsd_last_thread(struct net *net)
return;
nfsd_shutdown_net(net);
- pr_info("nfsd: last server has exited, flushing export cache\n");
nfsd_export_flush(net);
}
@@ -713,14 +712,13 @@ int nfsd_nrpools(struct net *net)
int nfsd_get_nrthreads(int n, int *nthreads, struct net *net)
{
- int i = 0;
struct nfsd_net *nn = net_generic(net, nfsd_net_id);
+ struct svc_serv *serv = nn->nfsd_serv;
+ int i;
- if (nn->nfsd_serv != NULL) {
- for (i = 0; i < nn->nfsd_serv->sv_nrpools && i < n; i++)
- nthreads[i] = nn->nfsd_serv->sv_pools[i].sp_nrthreads;
- }
-
+ if (serv)
+ for (i = 0; i < serv->sv_nrpools && i < n; i++)
+ nthreads[i] = atomic_read(&serv->sv_pools[i].sp_nrthreads);
return 0;
}
@@ -787,7 +785,6 @@ int
nfsd_svc(int nrservs, struct net *net, const struct cred *cred)
{
int error;
- bool nfsd_up_before;
struct nfsd_net *nn = net_generic(net, nfsd_net_id);
struct svc_serv *serv;
@@ -807,8 +804,6 @@ nfsd_svc(int nrservs, struct net *net, const struct cred *cred)
error = nfsd_create_serv(net);
if (error)
goto out;
-
- nfsd_up_before = nn->nfsd_net_up;
serv = nn->nfsd_serv;
error = nfsd_startup_net(net, cred);
@@ -816,17 +811,15 @@ nfsd_svc(int nrservs, struct net *net, const struct cred *cred)
goto out_put;
error = svc_set_num_threads(serv, NULL, nrservs);
if (error)
- goto out_shutdown;
+ goto out_put;
error = serv->sv_nrthreads;
- if (error == 0)
- nfsd_last_thread(net);
-out_shutdown:
- if (error < 0 && !nfsd_up_before)
- nfsd_shutdown_net(net);
out_put:
/* Threads now hold service active */
if (xchg(&nn->keep_active, 0))
svc_put(serv);
+
+ if (serv->sv_nrthreads == 0)
+ nfsd_last_thread(net);
svc_put(serv);
out:
mutex_unlock(&nfsd_mutex);
@@ -957,7 +950,7 @@ nfsd(void *vrqstp)
/*
* The main request loop
*/
- while (!kthread_should_stop()) {
+ while (!svc_thread_should_stop(rqstp)) {
/* Update sv_maxconn if it has changed */
rqstp->rq_server->sv_maxconn = nn->max_connections;
@@ -998,6 +991,15 @@ int nfsd_dispatch(struct svc_rqst *rqstp)
if (!proc->pc_decode(rqstp, &rqstp->rq_arg_stream))
goto out_decode_err;
+ /*
+ * Release rq_status_counter setting it to an odd value after the rpc
+ * request has been properly parsed. rq_status_counter is used to
+ * notify the consumers if the rqstp fields are stable
+ * (rq_status_counter is odd) or not meaningful (rq_status_counter
+ * is even).
+ */
+ smp_store_release(&rqstp->rq_status_counter, rqstp->rq_status_counter | 1);
+
rp = NULL;
switch (nfsd_cache_lookup(rqstp, &rp)) {
case RC_DOIT:
@@ -1015,6 +1017,12 @@ int nfsd_dispatch(struct svc_rqst *rqstp)
if (!proc->pc_encode(rqstp, &rqstp->rq_res_stream))
goto out_encode_err;
+ /*
+ * Release rq_status_counter setting it to an even value after the rpc
+ * request has been properly processed.
+ */
+ smp_store_release(&rqstp->rq_status_counter, rqstp->rq_status_counter + 1);
+
nfsd_cache_update(rqstp, rp, rqstp->rq_cachetype, statp + 1);
out_cached_reply:
return 1;
diff --git a/fs/nfsd/pnfs.h b/fs/nfsd/pnfs.h
index 4f4282d4eeca..de1e0dfed06a 100644
--- a/fs/nfsd/pnfs.h
+++ b/fs/nfsd/pnfs.h
@@ -27,12 +27,12 @@ struct nfsd4_layout_ops {
struct nfs4_client *clp,
struct nfsd4_getdeviceinfo *gdevp);
__be32 (*encode_getdeviceinfo)(struct xdr_stream *xdr,
- struct nfsd4_getdeviceinfo *gdevp);
+ const struct nfsd4_getdeviceinfo *gdevp);
__be32 (*proc_layoutget)(struct inode *, const struct svc_fh *fhp,
struct nfsd4_layoutget *lgp);
- __be32 (*encode_layoutget)(struct xdr_stream *,
- struct nfsd4_layoutget *lgp);
+ __be32 (*encode_layoutget)(struct xdr_stream *xdr,
+ const struct nfsd4_layoutget *lgp);
__be32 (*proc_layoutcommit)(struct inode *inode,
struct nfsd4_layoutcommit *lcp);
diff --git a/fs/nfsd/state.h b/fs/nfsd/state.h
index cbddcf484dba..f96eaa8e9413 100644
--- a/fs/nfsd/state.h
+++ b/fs/nfsd/state.h
@@ -117,6 +117,24 @@ struct nfs4_cpntf_state {
time64_t cpntf_time; /* last time stateid used */
};
+struct nfs4_cb_fattr {
+ struct nfsd4_callback ncf_getattr;
+ u32 ncf_cb_status;
+ u32 ncf_cb_bmap[1];
+
+ /* from CB_GETATTR reply */
+ u64 ncf_cb_change;
+ u64 ncf_cb_fsize;
+
+ unsigned long ncf_cb_flags;
+ bool ncf_file_modified;
+ u64 ncf_initial_cinfo;
+ u64 ncf_cur_fsize;
+};
+
+/* bits for ncf_cb_flags */
+#define CB_GETATTR_BUSY 0
+
/*
* Represents a delegation stateid. The nfs4_client holds references to these
* and they are put when it is being destroyed or when the delegation is
@@ -150,6 +168,9 @@ struct nfs4_delegation {
int dl_retries;
struct nfsd4_callback dl_recall;
bool dl_recalled;
+
+ /* for CB_GETATTR */
+ struct nfs4_cb_fattr dl_cb_fattr;
};
#define cb_to_delegation(cb) \
@@ -174,8 +195,6 @@ static inline struct nfs4_delegation *delegstateid(struct nfs4_stid *s)
/* Maximum number of slots per session. 160 is useful for long haul TCP */
#define NFSD_MAX_SLOTS_PER_SESSION 160
-/* Maximum number of operations per session compound */
-#define NFSD_MAX_OPS_PER_COMPOUND 50
/* Maximum session per slot cache size */
#define NFSD_SLOT_CACHE_SIZE 2048
/* Maximum number of NFSD_SLOT_CACHE_SIZE slots per session */
@@ -642,6 +661,7 @@ enum nfsd4_cb_op {
NFSPROC4_CLNT_CB_SEQUENCE,
NFSPROC4_CLNT_CB_NOTIFY_LOCK,
NFSPROC4_CLNT_CB_RECALL_ANY,
+ NFSPROC4_CLNT_CB_GETATTR,
};
/* Returns true iff a is later than b: */
@@ -734,5 +754,6 @@ static inline bool try_to_expire_client(struct nfs4_client *clp)
}
extern __be32 nfsd4_deleg_getattr_conflict(struct svc_rqst *rqstp,
- struct inode *inode);
+ struct inode *inode, bool *file_modified, u64 *size);
+extern void nfs4_cb_getattr(struct nfs4_cb_fattr *ncf);
#endif /* NFSD4_STATE_H */
diff --git a/fs/nfsd/stats.c b/fs/nfsd/stats.c
index 63797635e1c3..12d79f5d4eb1 100644
--- a/fs/nfsd/stats.c
+++ b/fs/nfsd/stats.c
@@ -60,7 +60,7 @@ static int nfsd_show(struct seq_file *seq, void *v)
#ifdef CONFIG_NFSD_V4
/* Show count for individual nfsv4 operations */
/* Writing operation numbers 0 1 2 also for maintaining uniformity */
- seq_printf(seq,"proc4ops %u", LAST_NFS4_OP + 1);
+ seq_printf(seq, "proc4ops %u", LAST_NFS4_OP + 1);
for (i = 0; i <= LAST_NFS4_OP; i++) {
seq_printf(seq, " %lld",
percpu_counter_sum_positive(&nfsdstats.counter[NFSD_STATS_NFS4_OP(i)]));
@@ -76,7 +76,7 @@ static int nfsd_show(struct seq_file *seq, void *v)
DEFINE_PROC_SHOW_ATTRIBUTE(nfsd);
-int nfsd_percpu_counters_init(struct percpu_counter counters[], int num)
+int nfsd_percpu_counters_init(struct percpu_counter *counters, int num)
{
int i, err = 0;
diff --git a/fs/nfsd/stats.h b/fs/nfsd/stats.h
index cf5524e7ca06..14f50c660b61 100644
--- a/fs/nfsd/stats.h
+++ b/fs/nfsd/stats.h
@@ -37,9 +37,9 @@ extern struct nfsd_stats nfsdstats;
extern struct svc_stat nfsd_svcstats;
-int nfsd_percpu_counters_init(struct percpu_counter counters[], int num);
-void nfsd_percpu_counters_reset(struct percpu_counter counters[], int num);
-void nfsd_percpu_counters_destroy(struct percpu_counter counters[], int num);
+int nfsd_percpu_counters_init(struct percpu_counter *counters, int num);
+void nfsd_percpu_counters_reset(struct percpu_counter *counters, int num);
+void nfsd_percpu_counters_destroy(struct percpu_counter *counters, int num);
int nfsd_stat_init(void);
void nfsd_stat_shutdown(void);
@@ -61,22 +61,22 @@ static inline void nfsd_stats_rc_nocache_inc(void)
static inline void nfsd_stats_fh_stale_inc(struct svc_export *exp)
{
percpu_counter_inc(&nfsdstats.counter[NFSD_STATS_FH_STALE]);
- if (exp)
- percpu_counter_inc(&exp->ex_stats.counter[EXP_STATS_FH_STALE]);
+ if (exp && exp->ex_stats)
+ percpu_counter_inc(&exp->ex_stats->counter[EXP_STATS_FH_STALE]);
}
static inline void nfsd_stats_io_read_add(struct svc_export *exp, s64 amount)
{
percpu_counter_add(&nfsdstats.counter[NFSD_STATS_IO_READ], amount);
- if (exp)
- percpu_counter_add(&exp->ex_stats.counter[EXP_STATS_IO_READ], amount);
+ if (exp && exp->ex_stats)
+ percpu_counter_add(&exp->ex_stats->counter[EXP_STATS_IO_READ], amount);
}
static inline void nfsd_stats_io_write_add(struct svc_export *exp, s64 amount)
{
percpu_counter_add(&nfsdstats.counter[NFSD_STATS_IO_WRITE], amount);
- if (exp)
- percpu_counter_add(&exp->ex_stats.counter[EXP_STATS_IO_WRITE], amount);
+ if (exp && exp->ex_stats)
+ percpu_counter_add(&exp->ex_stats->counter[EXP_STATS_IO_WRITE], amount);
}
static inline void nfsd_stats_payload_misses_inc(struct nfsd_net *nn)
diff --git a/fs/nfsd/trace.h b/fs/nfsd/trace.h
index 803904348871..fbc0ccb40424 100644
--- a/fs/nfsd/trace.h
+++ b/fs/nfsd/trace.h
@@ -1863,6 +1863,93 @@ TRACE_EVENT(nfsd_end_grace,
)
);
+DECLARE_EVENT_CLASS(nfsd_copy_class,
+ TP_PROTO(
+ const struct nfsd4_copy *copy
+ ),
+ TP_ARGS(copy),
+ TP_STRUCT__entry(
+ __field(bool, intra)
+ __field(bool, async)
+ __field(u32, src_cl_boot)
+ __field(u32, src_cl_id)
+ __field(u32, src_so_id)
+ __field(u32, src_si_generation)
+ __field(u32, dst_cl_boot)
+ __field(u32, dst_cl_id)
+ __field(u32, dst_so_id)
+ __field(u32, dst_si_generation)
+ __field(u64, src_cp_pos)
+ __field(u64, dst_cp_pos)
+ __field(u64, cp_count)
+ __sockaddr(addr, sizeof(struct sockaddr_in6))
+ ),
+ TP_fast_assign(
+ const stateid_t *src_stp = &copy->cp_src_stateid;
+ const stateid_t *dst_stp = &copy->cp_dst_stateid;
+
+ __entry->intra = test_bit(NFSD4_COPY_F_INTRA, &copy->cp_flags);
+ __entry->async = !test_bit(NFSD4_COPY_F_SYNCHRONOUS, &copy->cp_flags);
+ __entry->src_cl_boot = src_stp->si_opaque.so_clid.cl_boot;
+ __entry->src_cl_id = src_stp->si_opaque.so_clid.cl_id;
+ __entry->src_so_id = src_stp->si_opaque.so_id;
+ __entry->src_si_generation = src_stp->si_generation;
+ __entry->dst_cl_boot = dst_stp->si_opaque.so_clid.cl_boot;
+ __entry->dst_cl_id = dst_stp->si_opaque.so_clid.cl_id;
+ __entry->dst_so_id = dst_stp->si_opaque.so_id;
+ __entry->dst_si_generation = dst_stp->si_generation;
+ __entry->src_cp_pos = copy->cp_src_pos;
+ __entry->dst_cp_pos = copy->cp_dst_pos;
+ __entry->cp_count = copy->cp_count;
+ __assign_sockaddr(addr, &copy->cp_clp->cl_addr,
+ sizeof(struct sockaddr_in6));
+ ),
+ TP_printk("client=%pISpc intra=%d async=%d "
+ "src_stateid[si_generation:0x%x cl_boot:0x%x cl_id:0x%x so_id:0x%x] "
+ "dst_stateid[si_generation:0x%x cl_boot:0x%x cl_id:0x%x so_id:0x%x] "
+ "cp_src_pos=%llu cp_dst_pos=%llu cp_count=%llu",
+ __get_sockaddr(addr), __entry->intra, __entry->async,
+ __entry->src_si_generation, __entry->src_cl_boot,
+ __entry->src_cl_id, __entry->src_so_id,
+ __entry->dst_si_generation, __entry->dst_cl_boot,
+ __entry->dst_cl_id, __entry->dst_so_id,
+ __entry->src_cp_pos, __entry->dst_cp_pos, __entry->cp_count
+ )
+);
+
+#define DEFINE_COPY_EVENT(name) \
+DEFINE_EVENT(nfsd_copy_class, nfsd_copy_##name, \
+ TP_PROTO(const struct nfsd4_copy *copy), \
+ TP_ARGS(copy))
+
+DEFINE_COPY_EVENT(inter);
+DEFINE_COPY_EVENT(intra);
+DEFINE_COPY_EVENT(do_async);
+
+TRACE_EVENT(nfsd_copy_done,
+ TP_PROTO(
+ const struct nfsd4_copy *copy,
+ __be32 status
+ ),
+ TP_ARGS(copy, status),
+ TP_STRUCT__entry(
+ __field(int, status)
+ __field(bool, intra)
+ __field(bool, async)
+ __sockaddr(addr, sizeof(struct sockaddr_in6))
+ ),
+ TP_fast_assign(
+ __entry->status = be32_to_cpu(status);
+ __entry->intra = test_bit(NFSD4_COPY_F_INTRA, &copy->cp_flags);
+ __entry->async = !test_bit(NFSD4_COPY_F_SYNCHRONOUS, &copy->cp_flags);
+ __assign_sockaddr(addr, &copy->cp_clp->cl_addr,
+ sizeof(struct sockaddr_in6));
+ ),
+ TP_printk("addr=%pISpc status=%d intra=%d async=%d ",
+ __get_sockaddr(addr), __entry->status, __entry->intra, __entry->async
+ )
+);
+
#endif /* _NFSD_TRACE_H */
#undef TRACE_INCLUDE_PATH
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index bdb3f56026b3..fbbea7498f02 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -337,6 +337,24 @@ out:
return err;
}
+static void
+commit_reset_write_verifier(struct nfsd_net *nn, struct svc_rqst *rqstp,
+ int err)
+{
+ switch (err) {
+ case -EAGAIN:
+ case -ESTALE:
+ /*
+ * Neither of these are the result of a problem with
+ * durable storage, so avoid a write verifier reset.
+ */
+ break;
+ default:
+ nfsd_reset_write_verifier(nn);
+ trace_nfsd_writeverf_reset(nn, rqstp, err);
+ }
+}
+
/*
* Commit metadata changes to stable storage.
*/
@@ -647,8 +665,7 @@ __be32 nfsd4_clone_file_range(struct svc_rqst *rqstp,
&nfsd4_get_cstate(rqstp)->current_fh,
dst_pos,
count, status);
- nfsd_reset_write_verifier(nn);
- trace_nfsd_writeverf_reset(nn, rqstp, status);
+ commit_reset_write_verifier(nn, rqstp, status);
ret = nfserrno(status);
}
}
@@ -823,7 +840,7 @@ int nfsd_open_break_lease(struct inode *inode, int access)
* and additional flags.
* N.B. After this call fhp needs an fh_put
*/
-static __be32
+static int
__nfsd_open(struct svc_rqst *rqstp, struct svc_fh *fhp, umode_t type,
int may_flags, struct file **filp)
{
@@ -831,14 +848,12 @@ __nfsd_open(struct svc_rqst *rqstp, struct svc_fh *fhp, umode_t type,
struct inode *inode;
struct file *file;
int flags = O_RDONLY|O_LARGEFILE;
- __be32 err;
- int host_err = 0;
+ int host_err = -EPERM;
path.mnt = fhp->fh_export->ex_path.mnt;
path.dentry = fhp->fh_dentry;
inode = d_inode(path.dentry);
- err = nfserr_perm;
if (IS_APPEND(inode) && (may_flags & NFSD_MAY_WRITE))
goto out;
@@ -847,7 +862,7 @@ __nfsd_open(struct svc_rqst *rqstp, struct svc_fh *fhp, umode_t type,
host_err = nfsd_open_break_lease(inode, may_flags);
if (host_err) /* NOMEM or WOULDBLOCK */
- goto out_nfserr;
+ goto out;
if (may_flags & NFSD_MAY_WRITE) {
if (may_flags & NFSD_MAY_READ)
@@ -859,13 +874,13 @@ __nfsd_open(struct svc_rqst *rqstp, struct svc_fh *fhp, umode_t type,
file = dentry_open(&path, flags, current_cred());
if (IS_ERR(file)) {
host_err = PTR_ERR(file);
- goto out_nfserr;
+ goto out;
}
host_err = ima_file_check(file, may_flags);
if (host_err) {
fput(file);
- goto out_nfserr;
+ goto out;
}
if (may_flags & NFSD_MAY_64BIT_COOKIE)
@@ -874,10 +889,8 @@ __nfsd_open(struct svc_rqst *rqstp, struct svc_fh *fhp, umode_t type,
file->f_mode |= FMODE_32BITHASH;
*filp = file;
-out_nfserr:
- err = nfserrno(host_err);
out:
- return err;
+ return host_err;
}
__be32
@@ -885,6 +898,7 @@ nfsd_open(struct svc_rqst *rqstp, struct svc_fh *fhp, umode_t type,
int may_flags, struct file **filp)
{
__be32 err;
+ int host_err;
bool retried = false;
validate_process_creds();
@@ -904,12 +918,13 @@ nfsd_open(struct svc_rqst *rqstp, struct svc_fh *fhp, umode_t type,
retry:
err = fh_verify(rqstp, fhp, type, may_flags);
if (!err) {
- err = __nfsd_open(rqstp, fhp, type, may_flags, filp);
- if (err == nfserr_stale && !retried) {
+ host_err = __nfsd_open(rqstp, fhp, type, may_flags, filp);
+ if (host_err == -EOPENSTALE && !retried) {
retried = true;
fh_put(fhp);
goto retry;
}
+ err = nfserrno(host_err);
}
validate_process_creds();
return err;
@@ -922,13 +937,13 @@ retry:
* @may_flags: internal permission flags
* @filp: OUT: open "struct file *"
*
- * Returns an nfsstat value in network byte order.
+ * Returns zero on success, or a negative errno value.
*/
-__be32
+int
nfsd_open_verified(struct svc_rqst *rqstp, struct svc_fh *fhp, int may_flags,
struct file **filp)
{
- __be32 err;
+ int err;
validate_process_creds();
err = __nfsd_open(rqstp, fhp, S_IFREG, may_flags, filp);
@@ -1172,8 +1187,7 @@ nfsd_vfs_write(struct svc_rqst *rqstp, struct svc_fh *fhp, struct nfsd_file *nf,
host_err = vfs_iter_write(file, &iter, &pos, flags);
file_end_write(file);
if (host_err < 0) {
- nfsd_reset_write_verifier(nn);
- trace_nfsd_writeverf_reset(nn, rqstp, host_err);
+ commit_reset_write_verifier(nn, rqstp, host_err);
goto out_nfserr;
}
*cnt = host_err;
@@ -1185,10 +1199,8 @@ nfsd_vfs_write(struct svc_rqst *rqstp, struct svc_fh *fhp, struct nfsd_file *nf,
if (stable && use_wgather) {
host_err = wait_for_concurrent_writes(file);
- if (host_err < 0) {
- nfsd_reset_write_verifier(nn);
- trace_nfsd_writeverf_reset(nn, rqstp, host_err);
- }
+ if (host_err < 0)
+ commit_reset_write_verifier(nn, rqstp, host_err);
}
out_nfserr:
@@ -1331,8 +1343,7 @@ nfsd_commit(struct svc_rqst *rqstp, struct svc_fh *fhp, struct nfsd_file *nf,
err = nfserr_notsupp;
break;
default:
- nfsd_reset_write_verifier(nn);
- trace_nfsd_writeverf_reset(nn, rqstp, err2);
+ commit_reset_write_verifier(nn, rqstp, err2);
err = nfserrno(err2);
}
} else
diff --git a/fs/nfsd/vfs.h b/fs/nfsd/vfs.h
index a6890ea7b765..e3c29596f4df 100644
--- a/fs/nfsd/vfs.h
+++ b/fs/nfsd/vfs.h
@@ -104,8 +104,8 @@ __be32 nfsd_setxattr(struct svc_rqst *rqstp, struct svc_fh *fhp,
int nfsd_open_break_lease(struct inode *, int);
__be32 nfsd_open(struct svc_rqst *, struct svc_fh *, umode_t,
int, struct file **);
-__be32 nfsd_open_verified(struct svc_rqst *, struct svc_fh *,
- int, struct file **);
+int nfsd_open_verified(struct svc_rqst *rqstp, struct svc_fh *fhp,
+ int may_flags, struct file **filp);
__be32 nfsd_splice_read(struct svc_rqst *rqstp, struct svc_fh *fhp,
struct file *file, loff_t offset,
unsigned long *count,
diff --git a/fs/nfsd/xdr4.h b/fs/nfsd/xdr4.h
index 9d918a79dc16..80e859dc84d8 100644
--- a/fs/nfsd/xdr4.h
+++ b/fs/nfsd/xdr4.h
@@ -50,6 +50,134 @@
#define HAS_CSTATE_FLAG(c, f) ((c)->sid_flags & (f))
#define CLEAR_CSTATE_FLAG(c, f) ((c)->sid_flags &= ~(f))
+/**
+ * nfsd4_encode_bool - Encode an XDR bool type result
+ * @xdr: target XDR stream
+ * @val: boolean value to encode
+ *
+ * Return values:
+ * %nfs_ok: @val encoded; @xdr advanced to next position
+ * %nfserr_resource: stream buffer space exhausted
+ */
+static __always_inline __be32
+nfsd4_encode_bool(struct xdr_stream *xdr, bool val)
+{
+ __be32 *p = xdr_reserve_space(xdr, XDR_UNIT);
+
+ if (unlikely(p == NULL))
+ return nfserr_resource;
+ *p = val ? xdr_one : xdr_zero;
+ return nfs_ok;
+}
+
+/**
+ * nfsd4_encode_uint32_t - Encode an XDR uint32_t type result
+ * @xdr: target XDR stream
+ * @val: integer value to encode
+ *
+ * Return values:
+ * %nfs_ok: @val encoded; @xdr advanced to next position
+ * %nfserr_resource: stream buffer space exhausted
+ */
+static __always_inline __be32
+nfsd4_encode_uint32_t(struct xdr_stream *xdr, u32 val)
+{
+ __be32 *p = xdr_reserve_space(xdr, XDR_UNIT);
+
+ if (unlikely(p == NULL))
+ return nfserr_resource;
+ *p = cpu_to_be32(val);
+ return nfs_ok;
+}
+
+#define nfsd4_encode_aceflag4(x, v) nfsd4_encode_uint32_t(x, v)
+#define nfsd4_encode_acemask4(x, v) nfsd4_encode_uint32_t(x, v)
+#define nfsd4_encode_acetype4(x, v) nfsd4_encode_uint32_t(x, v)
+#define nfsd4_encode_count4(x, v) nfsd4_encode_uint32_t(x, v)
+#define nfsd4_encode_mode4(x, v) nfsd4_encode_uint32_t(x, v)
+#define nfsd4_encode_nfs_lease4(x, v) nfsd4_encode_uint32_t(x, v)
+#define nfsd4_encode_qop4(x, v) nfsd4_encode_uint32_t(x, v)
+#define nfsd4_encode_sequenceid4(x, v) nfsd4_encode_uint32_t(x, v)
+#define nfsd4_encode_slotid4(x, v) nfsd4_encode_uint32_t(x, v)
+
+/**
+ * nfsd4_encode_uint64_t - Encode an XDR uint64_t type result
+ * @xdr: target XDR stream
+ * @val: integer value to encode
+ *
+ * Return values:
+ * %nfs_ok: @val encoded; @xdr advanced to next position
+ * %nfserr_resource: stream buffer space exhausted
+ */
+static __always_inline __be32
+nfsd4_encode_uint64_t(struct xdr_stream *xdr, u64 val)
+{
+ __be32 *p = xdr_reserve_space(xdr, XDR_UNIT * 2);
+
+ if (unlikely(p == NULL))
+ return nfserr_resource;
+ put_unaligned_be64(val, p);
+ return nfs_ok;
+}
+
+#define nfsd4_encode_changeid4(x, v) nfsd4_encode_uint64_t(x, v)
+#define nfsd4_encode_nfs_cookie4(x, v) nfsd4_encode_uint64_t(x, v)
+#define nfsd4_encode_length4(x, v) nfsd4_encode_uint64_t(x, v)
+#define nfsd4_encode_offset4(x, v) nfsd4_encode_uint64_t(x, v)
+
+/**
+ * nfsd4_encode_opaque_fixed - Encode a fixed-length XDR opaque type result
+ * @xdr: target XDR stream
+ * @data: pointer to data
+ * @size: length of data in bytes
+ *
+ * Return values:
+ * %nfs_ok: @data encoded; @xdr advanced to next position
+ * %nfserr_resource: stream buffer space exhausted
+ */
+static __always_inline __be32
+nfsd4_encode_opaque_fixed(struct xdr_stream *xdr, const void *data,
+ size_t size)
+{
+ __be32 *p = xdr_reserve_space(xdr, xdr_align_size(size));
+ size_t pad = xdr_pad_size(size);
+
+ if (unlikely(p == NULL))
+ return nfserr_resource;
+ memcpy(p, data, size);
+ if (pad)
+ memset((char *)p + size, 0, pad);
+ return nfs_ok;
+}
+
+/**
+ * nfsd4_encode_opaque - Encode a variable-length XDR opaque type result
+ * @xdr: target XDR stream
+ * @data: pointer to data
+ * @size: length of data in bytes
+ *
+ * Return values:
+ * %nfs_ok: @data encoded; @xdr advanced to next position
+ * %nfserr_resource: stream buffer space exhausted
+ */
+static __always_inline __be32
+nfsd4_encode_opaque(struct xdr_stream *xdr, const void *data, size_t size)
+{
+ size_t pad = xdr_pad_size(size);
+ __be32 *p;
+
+ p = xdr_reserve_space(xdr, XDR_UNIT + xdr_align_size(size));
+ if (unlikely(p == NULL))
+ return nfserr_resource;
+ *p++ = cpu_to_be32(size);
+ memcpy(p, data, size);
+ if (pad)
+ memset((char *)p + size, 0, pad);
+ return nfs_ok;
+}
+
+#define nfsd4_encode_component4(x, d, s) nfsd4_encode_opaque(x, d, s)
+
struct nfsd4_compound_state {
struct svc_fh current_fh;
struct svc_fh save_fh;
@@ -170,12 +298,8 @@ struct nfsd4_lock {
} v;
/* response */
- union {
- struct {
- stateid_t stateid;
- } ok;
- struct nfsd4_lock_denied denied;
- } u;
+ stateid_t lk_resp_stateid;
+ struct nfsd4_lock_denied lk_denied;
};
#define lk_new_open_seqid v.new.open_seqid
#define lk_new_open_stateid v.new.open_stateid
@@ -185,20 +309,15 @@ struct nfsd4_lock {
#define lk_old_lock_stateid v.old.lock_stateid
#define lk_old_lock_seqid v.old.lock_seqid
-#define lk_resp_stateid u.ok.stateid
-#define lk_denied u.denied
-
-
struct nfsd4_lockt {
u32 lt_type;
clientid_t lt_clientid;
struct xdr_netobj lt_owner;
u64 lt_offset;
u64 lt_length;
- struct nfsd4_lock_denied lt_denied;
+ struct nfsd4_lock_denied lt_denied;
};
-
struct nfsd4_locku {
u32 lu_type;
u32 lu_seqid;
@@ -267,9 +386,9 @@ struct nfsd4_open {
u32 op_deleg_want; /* request */
stateid_t op_stateid; /* response */
__be32 op_xdr_error; /* see nfsd4_open_omfg() */
- u32 op_recall; /* recall */
struct nfsd4_change_info op_cinfo; /* response */
u32 op_rflags; /* response */
+ bool op_recall; /* response */
bool op_truncate; /* used during processing */
bool op_created; /* used during processing */
struct nfs4_openowner *op_openowner; /* used during processing */
@@ -496,7 +615,7 @@ struct nfsd4_layoutcommit {
u32 lc_layout_type; /* request */
u32 lc_up_len; /* layout length */
void *lc_up_layout; /* decoded by callback */
- u32 lc_size_chg; /* boolean for response */
+ bool lc_size_chg; /* response */
u64 lc_newsize; /* response */
};
@@ -508,7 +627,7 @@ struct nfsd4_layoutreturn {
u32 lrf_body_len; /* request */
void *lrf_body; /* request */
stateid_t lr_sid; /* request/response */
- u32 lrs_present; /* response */
+ bool lrs_present; /* response */
};
struct nfsd4_fallocate {
@@ -626,8 +745,7 @@ struct nfsd4_copy_notify {
/* response */
stateid_t cpn_cnr_stateid;
- u64 cpn_sec;
- u32 cpn_nsec;
+ struct timespec64 cpn_lease_time;
struct nl4_server *cpn_src;
};
@@ -820,8 +938,10 @@ extern __be32 nfsd4_open_downgrade(struct svc_rqst *rqstp,
struct nfsd4_compound_state *, union nfsd4_op_u *u);
extern __be32 nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *,
union nfsd4_op_u *u);
+extern void nfsd4_lock_release(union nfsd4_op_u *u);
extern __be32 nfsd4_lockt(struct svc_rqst *rqstp, struct nfsd4_compound_state *,
union nfsd4_op_u *u);
+extern void nfsd4_lockt_release(union nfsd4_op_u *u);
extern __be32 nfsd4_locku(struct svc_rqst *rqstp, struct nfsd4_compound_state *,
union nfsd4_op_u *u);
extern __be32
diff --git a/fs/nfsd/xdr4cb.h b/fs/nfsd/xdr4cb.h
index 0d39af1b00a0..e8b00309c449 100644
--- a/fs/nfsd/xdr4cb.h
+++ b/fs/nfsd/xdr4cb.h
@@ -54,3 +54,21 @@
#define NFS4_dec_cb_recall_any_sz (cb_compound_dec_hdr_sz + \
cb_sequence_dec_sz + \
op_dec_sz)
+
+/*
+ * 1: CB_GETATTR opcode (32-bit)
+ * N: file_handle
+ * 1: number of entry in attribute array (32-bit)
+ * 1: entry 0 in attribute array (32-bit)
+ */
+#define NFS4_enc_cb_getattr_sz (cb_compound_enc_hdr_sz + \
+ cb_sequence_enc_sz + \
+ 1 + enc_nfs4_fh_sz + 1 + 1)
+/*
+ * 4: fattr_bitmap_maxsz
+ * 1: attribute array len
+ * 2: change attr (64-bit)
+ * 2: size (64-bit)
+ */
+#define NFS4_dec_cb_getattr_sz (cb_compound_dec_hdr_sz + \
+ cb_sequence_dec_sz + 4 + 1 + 2 + 2 + op_dec_sz)
generated by cgit (git 2.34.1) at 2024-05-27 13:14:56 +0000