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-rw-r--r--fs/nfsd/flexfilelayout.c8
-rw-r--r--fs/nfsd/nfs4proc.c21
-rw-r--r--fs/nfsd/nfs4state.c69
-rw-r--r--fs/nfsd/nfs4xdr.c26
-rw-r--r--fs/nfsd/nfsd.h4
-rw-r--r--fs/nfsd/nfsfh.c6
-rw-r--r--fs/nfsd/xdr4.h4
7 files changed, 100 insertions, 38 deletions
diff --git a/fs/nfsd/flexfilelayout.c b/fs/nfsd/flexfilelayout.c
index c318cf74e388..0f1a35400cd5 100644
--- a/fs/nfsd/flexfilelayout.c
+++ b/fs/nfsd/flexfilelayout.c
@@ -125,6 +125,13 @@ nfsd4_ff_proc_getdeviceinfo(struct super_block *sb, struct svc_rqst *rqstp,
return 0;
}
+static __be32
+nfsd4_ff_proc_layoutcommit(struct inode *inode, struct svc_rqst *rqstp,
+ struct nfsd4_layoutcommit *lcp)
+{
+ return nfs_ok;
+}
+
const struct nfsd4_layout_ops ff_layout_ops = {
.notify_types =
NOTIFY_DEVICEID4_DELETE | NOTIFY_DEVICEID4_CHANGE,
@@ -133,4 +140,5 @@ const struct nfsd4_layout_ops ff_layout_ops = {
.encode_getdeviceinfo = nfsd4_ff_encode_getdeviceinfo,
.proc_layoutget = nfsd4_ff_proc_layoutget,
.encode_layoutget = nfsd4_ff_encode_layoutget,
+ .proc_layoutcommit = nfsd4_ff_proc_layoutcommit,
};
diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index e466cf52d7d7..7f7e6bb23a90 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -988,10 +988,11 @@ nfsd4_read(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
static void
nfsd4_read_release(union nfsd4_op_u *u)
{
- if (u->read.rd_nf)
+ if (u->read.rd_nf) {
+ trace_nfsd_read_done(u->read.rd_rqstp, u->read.rd_fhp,
+ u->read.rd_offset, u->read.rd_length);
nfsd_file_put(u->read.rd_nf);
- trace_nfsd_read_done(u->read.rd_rqstp, u->read.rd_fhp,
- u->read.rd_offset, u->read.rd_length);
+ }
}
static __be32
@@ -2892,10 +2893,20 @@ nfsd4_proc_compound(struct svc_rqst *rqstp)
rqstp->rq_lease_breaker = (void **)&cstate->clp;
- trace_nfsd_compound(rqstp, args->tag, args->taglen, args->opcnt);
+ trace_nfsd_compound(rqstp, args->tag, args->taglen, args->client_opcnt);
while (!status && resp->opcnt < args->opcnt) {
op = &args->ops[resp->opcnt++];
+ if (unlikely(resp->opcnt == NFSD_MAX_OPS_PER_COMPOUND)) {
+ /* If there are still more operations to process,
+ * stop here and report NFS4ERR_RESOURCE. */
+ if (cstate->minorversion == 0 &&
+ args->client_opcnt > resp->opcnt) {
+ op->status = nfserr_resource;
+ goto encode_op;
+ }
+ }
+
/*
* The XDR decode routines may have pre-set op->status;
* for example, if there is a miscellaneous XDR error
@@ -2972,7 +2983,7 @@ encode_op:
status = op->status;
}
- trace_nfsd_compound_status(args->opcnt, resp->opcnt,
+ trace_nfsd_compound_status(args->client_opcnt, resp->opcnt,
status, nfsd4_op_name(op->opnum));
nfsd4_cstate_clear_replay(cstate);
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 81fa7cc6c77b..8a6960500217 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -1542,7 +1542,8 @@ static void nfs4_free_ol_stateid(struct nfs4_stid *stid)
release_all_access(stp);
if (stp->st_stateowner)
nfs4_put_stateowner(stp->st_stateowner);
- WARN_ON(!list_empty(&stid->sc_cp_list));
+ if (!list_empty(&stid->sc_cp_list))
+ nfs4_free_cpntf_statelist(stid->sc_client->net, stid);
kmem_cache_free(stateid_slab, stid);
}
@@ -3486,7 +3487,20 @@ nfsd4_store_cache_entry(struct nfsd4_compoundres *resp)
struct nfsd4_slot *slot = resp->cstate.slot;
unsigned int base;
- dprintk("--> %s slot %p\n", __func__, slot);
+ /*
+ * RFC 5661 Section 2.10.6.1.2:
+ *
+ * Any time SEQUENCE ... returns an error ... [t]he replier MUST NOT
+ * modify the reply cache entry for the slot whenever an error is
+ * returned from SEQUENCE ...
+ *
+ * Because nfsd4_store_cache_entry is called only by
+ * nfsd4_sequence_done(), nfsd4_store_cache_entry() is called only
+ * when a SEQUENCE operation was part of the COMPOUND.
+ * nfs41_check_op_ordering() ensures SEQUENCE is the first op.
+ */
+ if (resp->opcnt == 1 && resp->cstate.status != nfs_ok)
+ return;
slot->sl_flags |= NFSD4_SLOT_INITIALIZED;
slot->sl_opcnt = resp->opcnt;
@@ -3902,6 +3916,7 @@ static __be32 check_forechannel_attrs(struct nfsd4_channel_attrs *ca, struct nfs
ca->headerpadsz = 0;
ca->maxreq_sz = min_t(u32, ca->maxreq_sz, maxrpc);
ca->maxresp_sz = min_t(u32, ca->maxresp_sz, maxrpc);
+ ca->maxops = min_t(u32, ca->maxops, NFSD_MAX_OPS_PER_COMPOUND);
ca->maxresp_cached = min_t(u32, ca->maxresp_cached,
NFSD_SLOT_CACHE_SIZE + NFSD_MIN_HDR_SEQ_SZ);
ca->maxreqs = min_t(u32, ca->maxreqs, NFSD_MAX_SLOTS_PER_SESSION);
@@ -4348,6 +4363,36 @@ static bool replay_matches_cache(struct svc_rqst *rqstp,
return true;
}
+/*
+ * Note that the response is constructed here both for the case
+ * of a new SEQUENCE request and for a replayed SEQUENCE request.
+ * We do not cache SEQUENCE responses as SEQUENCE is idempotent.
+ */
+static void nfsd4_construct_sequence_response(struct nfsd4_session *session,
+ struct nfsd4_sequence *seq)
+{
+ struct nfs4_client *clp = session->se_client;
+
+ seq->maxslots_response = max(session->se_target_maxslots,
+ seq->maxslots);
+ seq->target_maxslots = session->se_target_maxslots;
+
+ switch (clp->cl_cb_state) {
+ case NFSD4_CB_DOWN:
+ seq->status_flags = SEQ4_STATUS_CB_PATH_DOWN;
+ break;
+ case NFSD4_CB_FAULT:
+ seq->status_flags = SEQ4_STATUS_BACKCHANNEL_FAULT;
+ break;
+ default:
+ seq->status_flags = 0;
+ }
+ if (!list_empty(&clp->cl_revoked))
+ seq->status_flags |= SEQ4_STATUS_RECALLABLE_STATE_REVOKED;
+ if (atomic_read(&clp->cl_admin_revoked))
+ seq->status_flags |= SEQ4_STATUS_ADMIN_STATE_REVOKED;
+}
+
__be32
nfsd4_sequence(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
union nfsd4_op_u *u)
@@ -4397,6 +4442,9 @@ nfsd4_sequence(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
dprintk("%s: slotid %d\n", __func__, seq->slotid);
trace_nfsd_slot_seqid_sequence(clp, seq, slot);
+
+ nfsd4_construct_sequence_response(session, seq);
+
status = check_slot_seqid(seq->seqid, slot->sl_seqid, slot->sl_flags);
if (status == nfserr_replay_cache) {
status = nfserr_seq_misordered;
@@ -4494,23 +4542,6 @@ nfsd4_sequence(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
}
out:
- seq->maxslots = max(session->se_target_maxslots, seq->maxslots);
- seq->target_maxslots = session->se_target_maxslots;
-
- switch (clp->cl_cb_state) {
- case NFSD4_CB_DOWN:
- seq->status_flags = SEQ4_STATUS_CB_PATH_DOWN;
- break;
- case NFSD4_CB_FAULT:
- seq->status_flags = SEQ4_STATUS_BACKCHANNEL_FAULT;
- break;
- default:
- seq->status_flags = 0;
- }
- if (!list_empty(&clp->cl_revoked))
- seq->status_flags |= SEQ4_STATUS_RECALLABLE_STATE_REVOKED;
- if (atomic_read(&clp->cl_admin_revoked))
- seq->status_flags |= SEQ4_STATUS_ADMIN_STATE_REVOKED;
trace_nfsd_seq4_status(rqstp, seq);
out_no_session:
if (conn)
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index c0a3c6a7c8bb..67bb9c0b9fcb 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -2488,8 +2488,10 @@ nfsd4_decode_compound(struct nfsd4_compoundargs *argp)
if (xdr_stream_decode_u32(argp->xdr, &argp->minorversion) < 0)
return false;
- if (xdr_stream_decode_u32(argp->xdr, &argp->opcnt) < 0)
+ if (xdr_stream_decode_u32(argp->xdr, &argp->client_opcnt) < 0)
return false;
+ argp->opcnt = min_t(u32, argp->client_opcnt,
+ NFSD_MAX_OPS_PER_COMPOUND);
if (argp->opcnt > ARRAY_SIZE(argp->iops)) {
argp->ops = vcalloc(argp->opcnt, sizeof(*argp->ops));
@@ -2628,10 +2630,8 @@ static __be32 nfsd4_encode_components_esc(struct xdr_stream *xdr, char sep,
__be32 *p;
__be32 pathlen;
int pathlen_offset;
- int strlen, count=0;
char *str, *end, *next;
-
- dprintk("nfsd4_encode_components(%s)\n", components);
+ int count = 0;
pathlen_offset = xdr->buf->len;
p = xdr_reserve_space(xdr, 4);
@@ -2658,9 +2658,8 @@ static __be32 nfsd4_encode_components_esc(struct xdr_stream *xdr, char sep,
for (; *end && (*end != sep); end++)
/* find sep or end of string */;
- strlen = end - str;
- if (strlen) {
- if (xdr_stream_encode_opaque(xdr, str, strlen) < 0)
+ if (end > str) {
+ if (xdr_stream_encode_opaque(xdr, str, end - str) < 0)
return nfserr_resource;
count++;
} else
@@ -2939,6 +2938,12 @@ struct nfsd4_fattr_args {
typedef __be32(*nfsd4_enc_attr)(struct xdr_stream *xdr,
const struct nfsd4_fattr_args *args);
+static __be32 nfsd4_encode_fattr4__inval(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ return nfserr_inval;
+}
+
static __be32 nfsd4_encode_fattr4__noop(struct xdr_stream *xdr,
const struct nfsd4_fattr_args *args)
{
@@ -3560,6 +3565,8 @@ static const nfsd4_enc_attr nfsd4_enc_fattr4_encode_ops[] = {
[FATTR4_MODE_UMASK] = nfsd4_encode_fattr4__noop,
[FATTR4_XATTR_SUPPORT] = nfsd4_encode_fattr4_xattr_support,
+ [FATTR4_TIME_DELEG_ACCESS] = nfsd4_encode_fattr4__inval,
+ [FATTR4_TIME_DELEG_MODIFY] = nfsd4_encode_fattr4__inval,
[FATTR4_OPEN_ARGUMENTS] = nfsd4_encode_fattr4_open_arguments,
};
@@ -5066,7 +5073,7 @@ nfsd4_encode_sequence(struct nfsd4_compoundres *resp, __be32 nfserr,
return nfserr;
/* Note slotid's are numbered from zero: */
/* sr_highest_slotid */
- nfserr = nfsd4_encode_slotid4(xdr, seq->maxslots - 1);
+ nfserr = nfsd4_encode_slotid4(xdr, seq->maxslots_response - 1);
if (nfserr != nfs_ok)
return nfserr;
/* sr_target_highest_slotid */
@@ -5918,8 +5925,7 @@ nfsd4_encode_operation(struct nfsd4_compoundres *resp, struct nfsd4_op *op)
*/
warn_on_nonidempotent_op(op);
xdr_truncate_encode(xdr, op_status_offset + XDR_UNIT);
- }
- if (so) {
+ } else if (so) {
int len = xdr->buf->len - (op_status_offset + XDR_UNIT);
so->so_replay.rp_status = op->status;
diff --git a/fs/nfsd/nfsd.h b/fs/nfsd/nfsd.h
index ea87b42894dd..b752433c3c2c 100644
--- a/fs/nfsd/nfsd.h
+++ b/fs/nfsd/nfsd.h
@@ -57,6 +57,9 @@ struct readdir_cd {
__be32 err; /* 0, nfserr, or nfserr_eof */
};
+/* Maximum number of operations per session compound */
+#define NFSD_MAX_OPS_PER_COMPOUND 200
+
struct nfsd_genl_rqstp {
struct sockaddr rq_daddr;
struct sockaddr rq_saddr;
@@ -455,6 +458,7 @@ enum {
#define NFSD4_2_SUPPORTED_ATTRS_WORD2 \
(NFSD4_1_SUPPORTED_ATTRS_WORD2 | \
FATTR4_WORD2_MODE_UMASK | \
+ FATTR4_WORD2_CLONE_BLKSIZE | \
NFSD4_2_SECURITY_ATTRS | \
FATTR4_WORD2_XATTR_SUPPORT | \
FATTR4_WORD2_TIME_DELEG_ACCESS | \
diff --git a/fs/nfsd/nfsfh.c b/fs/nfsd/nfsfh.c
index 3eb724ec9566..ed85dd43da18 100644
--- a/fs/nfsd/nfsfh.c
+++ b/fs/nfsd/nfsfh.c
@@ -269,9 +269,6 @@ static __be32 nfsd_set_fh_dentry(struct svc_rqst *rqstp, struct net *net,
dentry);
}
- fhp->fh_dentry = dentry;
- fhp->fh_export = exp;
-
switch (fhp->fh_maxsize) {
case NFS4_FHSIZE:
if (dentry->d_sb->s_export_op->flags & EXPORT_OP_NOATOMIC_ATTR)
@@ -293,6 +290,9 @@ static __be32 nfsd_set_fh_dentry(struct svc_rqst *rqstp, struct net *net,
goto out;
}
+ fhp->fh_dentry = dentry;
+ fhp->fh_export = exp;
+
return 0;
out:
exp_put(exp);
diff --git a/fs/nfsd/xdr4.h b/fs/nfsd/xdr4.h
index d4b48602b2b0..1ce8e12ae335 100644
--- a/fs/nfsd/xdr4.h
+++ b/fs/nfsd/xdr4.h
@@ -574,8 +574,9 @@ struct nfsd4_sequence {
struct nfs4_sessionid sessionid; /* request/response */
u32 seqid; /* request/response */
u32 slotid; /* request/response */
- u32 maxslots; /* request/response */
+ u32 maxslots; /* request */
u32 cachethis; /* request */
+ u32 maxslots_response; /* response */
u32 target_maxslots; /* response */
u32 status_flags; /* response */
};
@@ -903,6 +904,7 @@ struct nfsd4_compoundargs {
char * tag;
u32 taglen;
u32 minorversion;
+ u32 client_opcnt;
u32 opcnt;
bool splice_ok;
struct nfsd4_op *ops;
generated by cgit v1.2.3 (git 2.39.0) at 2025-11-15 03:53:53 +0300