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Diffstat (limited to 'fs/nfs/nfs4xdr.c')
-rw-r--r--fs/nfs/nfs4xdr.c135
1 files changed, 116 insertions, 19 deletions
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index 20b4e30e6c82..e437fd6a819f 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -46,11 +46,13 @@
#include <linux/proc_fs.h>
#include <linux/kdev_t.h>
#include <linux/sunrpc/clnt.h>
+#include <linux/sunrpc/msg_prot.h>
#include <linux/nfs.h>
#include <linux/nfs4.h>
#include <linux/nfs_fs.h>
#include <linux/nfs_idmap.h>
#include "nfs4_fs.h"
+#include "internal.h"
#define NFSDBG_FACILITY NFSDBG_XDR
@@ -134,7 +136,7 @@ static int nfs4_stat_to_errno(int);
#define decode_lookup_maxsz (op_decode_hdr_maxsz)
#define encode_share_access_maxsz \
(2)
-#define encode_createmode_maxsz (1 + encode_attrs_maxsz)
+#define encode_createmode_maxsz (1 + encode_attrs_maxsz + encode_verifier_maxsz)
#define encode_opentype_maxsz (1 + encode_createmode_maxsz)
#define encode_claim_null_maxsz (1 + nfs4_name_maxsz)
#define encode_open_maxsz (op_encode_hdr_maxsz + \
@@ -299,6 +301,8 @@ static int nfs4_stat_to_errno(int);
XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 4)
#define decode_sequence_maxsz (op_decode_hdr_maxsz + \
XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 5)
+#define encode_reclaim_complete_maxsz (op_encode_hdr_maxsz + 4)
+#define decode_reclaim_complete_maxsz (op_decode_hdr_maxsz + 4)
#else /* CONFIG_NFS_V4_1 */
#define encode_sequence_maxsz 0
#define decode_sequence_maxsz 0
@@ -676,6 +680,25 @@ static int nfs4_stat_to_errno(int);
decode_sequence_maxsz + \
decode_putrootfh_maxsz + \
decode_fsinfo_maxsz)
+#define NFS4_enc_reclaim_complete_sz (compound_encode_hdr_maxsz + \
+ encode_sequence_maxsz + \
+ encode_reclaim_complete_maxsz)
+#define NFS4_dec_reclaim_complete_sz (compound_decode_hdr_maxsz + \
+ decode_sequence_maxsz + \
+ decode_reclaim_complete_maxsz)
+
+const u32 nfs41_maxwrite_overhead = ((RPC_MAX_HEADER_WITH_AUTH +
+ compound_encode_hdr_maxsz +
+ encode_sequence_maxsz +
+ encode_putfh_maxsz +
+ encode_getattr_maxsz) *
+ XDR_UNIT);
+
+const u32 nfs41_maxread_overhead = ((RPC_MAX_HEADER_WITH_AUTH +
+ compound_decode_hdr_maxsz +
+ decode_sequence_maxsz +
+ decode_putfh_maxsz) *
+ XDR_UNIT);
#endif /* CONFIG_NFS_V4_1 */
static const umode_t nfs_type2fmt[] = {
@@ -1140,6 +1163,7 @@ static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_opena
static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg)
{
__be32 *p;
+ struct nfs_client *clp;
p = reserve_space(xdr, 4);
switch(arg->open_flags & O_EXCL) {
@@ -1148,8 +1172,23 @@ static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_op
encode_attrs(xdr, arg->u.attrs, arg->server);
break;
default:
- *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE);
- encode_nfs4_verifier(xdr, &arg->u.verifier);
+ clp = arg->server->nfs_client;
+ if (clp->cl_minorversion > 0) {
+ if (nfs4_has_persistent_session(clp)) {
+ *p = cpu_to_be32(NFS4_CREATE_GUARDED);
+ encode_attrs(xdr, arg->u.attrs, arg->server);
+ } else {
+ struct iattr dummy;
+
+ *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE4_1);
+ encode_nfs4_verifier(xdr, &arg->u.verifier);
+ dummy.ia_valid = 0;
+ encode_attrs(xdr, &dummy, arg->server);
+ }
+ } else {
+ *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE);
+ encode_nfs4_verifier(xdr, &arg->u.verifier);
+ }
}
}
@@ -1592,6 +1631,19 @@ static void encode_destroy_session(struct xdr_stream *xdr,
hdr->nops++;
hdr->replen += decode_destroy_session_maxsz;
}
+
+static void encode_reclaim_complete(struct xdr_stream *xdr,
+ struct nfs41_reclaim_complete_args *args,
+ struct compound_hdr *hdr)
+{
+ __be32 *p;
+
+ p = reserve_space(xdr, 8);
+ *p++ = cpu_to_be32(OP_RECLAIM_COMPLETE);
+ *p++ = cpu_to_be32(args->one_fs);
+ hdr->nops++;
+ hdr->replen += decode_reclaim_complete_maxsz;
+}
#endif /* CONFIG_NFS_V4_1 */
static void encode_sequence(struct xdr_stream *xdr,
@@ -2096,7 +2148,7 @@ nfs4_xdr_enc_getacl(struct rpc_rqst *req, __be32 *p,
encode_compound_hdr(&xdr, req, &hdr);
encode_sequence(&xdr, &args->seq_args, &hdr);
encode_putfh(&xdr, args->fh, &hdr);
- replen = hdr.replen + nfs4_fattr_bitmap_maxsz + 1;
+ replen = hdr.replen + op_decode_hdr_maxsz + nfs4_fattr_bitmap_maxsz + 1;
encode_getattr_two(&xdr, FATTR4_WORD0_ACL, 0, &hdr);
xdr_inline_pages(&req->rq_rcv_buf, replen << 2,
@@ -2420,6 +2472,26 @@ static int nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req, uint32_t *p,
encode_nops(&hdr);
return 0;
}
+
+/*
+ * a RECLAIM_COMPLETE request
+ */
+static int nfs4_xdr_enc_reclaim_complete(struct rpc_rqst *req, uint32_t *p,
+ struct nfs41_reclaim_complete_args *args)
+{
+ struct xdr_stream xdr;
+ struct compound_hdr hdr = {
+ .minorversion = nfs4_xdr_minorversion(&args->seq_args)
+ };
+
+ xdr_init_encode(&xdr, &req->rq_snd_buf, p);
+ encode_compound_hdr(&xdr, req, &hdr);
+ encode_sequence(&xdr, &args->seq_args, &hdr);
+ encode_reclaim_complete(&xdr, args, &hdr);
+ encode_nops(&hdr);
+ return 0;
+}
+
#endif /* CONFIG_NFS_V4_1 */
static void print_overflow_msg(const char *func, const struct xdr_stream *xdr)
@@ -4528,6 +4600,11 @@ static int decode_destroy_session(struct xdr_stream *xdr, void *dummy)
{
return decode_op_hdr(xdr, OP_DESTROY_SESSION);
}
+
+static int decode_reclaim_complete(struct xdr_stream *xdr, void *dummy)
+{
+ return decode_op_hdr(xdr, OP_RECLAIM_COMPLETE);
+}
#endif /* CONFIG_NFS_V4_1 */
static int decode_sequence(struct xdr_stream *xdr,
@@ -4583,8 +4660,8 @@ static int decode_sequence(struct xdr_stream *xdr,
dummy = be32_to_cpup(p++);
/* target highest slot id - currently not processed */
dummy = be32_to_cpup(p++);
- /* result flags - currently not processed */
- dummy = be32_to_cpup(p);
+ /* result flags */
+ res->sr_status_flags = be32_to_cpup(p);
status = 0;
out_err:
res->sr_status = status;
@@ -5309,7 +5386,7 @@ out:
}
/*
- * FSINFO request
+ * Decode FSINFO response
*/
static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, __be32 *p,
struct nfs4_fsinfo_res *res)
@@ -5330,7 +5407,7 @@ static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, __be32 *p,
}
/*
- * PATHCONF request
+ * Decode PATHCONF response
*/
static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, __be32 *p,
struct nfs4_pathconf_res *res)
@@ -5351,7 +5428,7 @@ static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, __be32 *p,
}
/*
- * STATFS request
+ * Decode STATFS response
*/
static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, __be32 *p,
struct nfs4_statfs_res *res)
@@ -5372,7 +5449,7 @@ static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, __be32 *p,
}
/*
- * GETATTR_BITMAP request
+ * Decode GETATTR_BITMAP response
*/
static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, __be32 *p, struct nfs4_server_caps_res *res)
{
@@ -5411,7 +5488,7 @@ static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, __be32 *p, void *dummy)
}
/*
- * a SETCLIENTID request
+ * Decode SETCLIENTID response
*/
static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, __be32 *p,
struct nfs_client *clp)
@@ -5428,7 +5505,7 @@ static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, __be32 *p,
}
/*
- * a SETCLIENTID_CONFIRM request
+ * Decode SETCLIENTID_CONFIRM response
*/
static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_fsinfo *fsinfo)
{
@@ -5448,7 +5525,7 @@ static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, __be32 *p, str
}
/*
- * DELEGRETURN request
+ * Decode DELEGRETURN response
*/
static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_delegreturnres *res)
{
@@ -5474,7 +5551,7 @@ out:
}
/*
- * FS_LOCATIONS request
+ * Decode FS_LOCATIONS response
*/
static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, __be32 *p,
struct nfs4_fs_locations_res *res)
@@ -5504,7 +5581,7 @@ out:
#if defined(CONFIG_NFS_V4_1)
/*
- * EXCHANGE_ID request
+ * Decode EXCHANGE_ID response
*/
static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp, uint32_t *p,
void *res)
@@ -5521,7 +5598,7 @@ static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp, uint32_t *p,
}
/*
- * a CREATE_SESSION request
+ * Decode CREATE_SESSION response
*/
static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp, uint32_t *p,
struct nfs41_create_session_res *res)
@@ -5538,7 +5615,7 @@ static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp, uint32_t *p,
}
/*
- * a DESTROY_SESSION request
+ * Decode DESTROY_SESSION response
*/
static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp, uint32_t *p,
void *dummy)
@@ -5555,7 +5632,7 @@ static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp, uint32_t *p,
}
/*
- * a SEQUENCE request
+ * Decode SEQUENCE response
*/
static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp, uint32_t *p,
struct nfs4_sequence_res *res)
@@ -5572,7 +5649,7 @@ static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp, uint32_t *p,
}
/*
- * a GET_LEASE_TIME request
+ * Decode GET_LEASE_TIME response
*/
static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp, uint32_t *p,
struct nfs4_get_lease_time_res *res)
@@ -5591,6 +5668,25 @@ static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp, uint32_t *p,
status = decode_fsinfo(&xdr, res->lr_fsinfo);
return status;
}
+
+/*
+ * Decode RECLAIM_COMPLETE response
+ */
+static int nfs4_xdr_dec_reclaim_complete(struct rpc_rqst *rqstp, uint32_t *p,
+ struct nfs41_reclaim_complete_res *res)
+{
+ struct xdr_stream xdr;
+ struct compound_hdr hdr;
+ int status;
+
+ xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
+ status = decode_compound_hdr(&xdr, &hdr);
+ if (!status)
+ status = decode_sequence(&xdr, &res->seq_res, rqstp);
+ if (!status)
+ status = decode_reclaim_complete(&xdr, (void *)NULL);
+ return status;
+}
#endif /* CONFIG_NFS_V4_1 */
__be32 *nfs4_decode_dirent(__be32 *p, struct nfs_entry *entry, int plus)
@@ -5767,6 +5863,7 @@ struct rpc_procinfo nfs4_procedures[] = {
PROC(DESTROY_SESSION, enc_destroy_session, dec_destroy_session),
PROC(SEQUENCE, enc_sequence, dec_sequence),
PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time),
+ PROC(RECLAIM_COMPLETE, enc_reclaim_complete, dec_reclaim_complete),
#endif /* CONFIG_NFS_V4_1 */
};
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2024-07-13 12:21:54 +0200