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Diffstat (limited to 'fs/lockd/clnt4xdr.c')
-rw-r--r--fs/lockd/clnt4xdr.c96
1 files changed, 40 insertions, 56 deletions
diff --git a/fs/lockd/clnt4xdr.c b/fs/lockd/clnt4xdr.c
index 00ec0b9c94d1..527458db4525 100644
--- a/fs/lockd/clnt4xdr.c
+++ b/fs/lockd/clnt4xdr.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* linux/fs/lockd/clnt4xdr.c
*
@@ -14,6 +15,8 @@
#include <linux/sunrpc/stats.h>
#include <linux/lockd/lockd.h>
+#include <uapi/linux/nfs3.h>
+
#define NLMDBG_FACILITY NLMDBG_XDR
#if (NLMCLNT_OHSIZE > XDR_MAX_NETOBJ)
@@ -72,17 +75,6 @@ static void nlm4_compute_offsets(const struct nlm_lock *lock,
}
/*
- * Handle decode buffer overflows out-of-line.
- */
-static void print_overflow_msg(const char *func, const struct xdr_stream *xdr)
-{
- dprintk("lockd: %s prematurely hit the end of our receive buffer. "
- "Remaining buffer length is %tu words.\n",
- func, xdr->end - xdr->p);
-}
-
-
-/*
* Encode/decode NLMv4 basic data types
*
* Basic NLMv4 data types are defined in Appendix II, section 6.1.4
@@ -125,24 +117,14 @@ static void encode_netobj(struct xdr_stream *xdr,
static int decode_netobj(struct xdr_stream *xdr,
struct xdr_netobj *obj)
{
- u32 length;
- __be32 *p;
+ ssize_t ret;
- p = xdr_inline_decode(xdr, 4);
- if (unlikely(p == NULL))
- goto out_overflow;
- length = be32_to_cpup(p++);
- if (unlikely(length > XDR_MAX_NETOBJ))
- goto out_size;
- obj->len = length;
- obj->data = (u8 *)p;
+ ret = xdr_stream_decode_opaque_inline(xdr, (void *)&obj->data,
+ XDR_MAX_NETOBJ);
+ if (unlikely(ret < 0))
+ return -EIO;
+ obj->len = ret;
return 0;
-out_size:
- dprintk("NFS: returned netobj was too long: %u\n", length);
- return -EIO;
-out_overflow:
- print_overflow_msg(__func__, xdr);
- return -EIO;
}
/*
@@ -183,7 +165,6 @@ out_size:
dprintk("NFS: returned cookie was too long: %u\n", length);
return -EIO;
out_overflow:
- print_overflow_msg(__func__, xdr);
return -EIO;
}
@@ -243,7 +224,6 @@ out_bad_xdr:
__func__, be32_to_cpup(p));
return -EIO;
out_overflow:
- print_overflow_msg(__func__, xdr);
return -EIO;
}
@@ -263,7 +243,7 @@ static void encode_nlm4_holder(struct xdr_stream *xdr,
u64 l_offset, l_len;
__be32 *p;
- encode_bool(xdr, lock->fl.fl_type == F_RDLCK);
+ encode_bool(xdr, lock->fl.c.flc_type == F_RDLCK);
encode_int32(xdr, lock->svid);
encode_netobj(xdr, lock->oh.data, lock->oh.len);
@@ -281,7 +261,6 @@ static int decode_nlm4_holder(struct xdr_stream *xdr, struct nlm_res *result)
u32 exclusive;
int error;
__be32 *p;
- s32 end;
memset(lock, 0, sizeof(*lock));
locks_init_lock(fl);
@@ -291,7 +270,7 @@ static int decode_nlm4_holder(struct xdr_stream *xdr, struct nlm_res *result)
goto out_overflow;
exclusive = be32_to_cpup(p++);
lock->svid = be32_to_cpup(p);
- fl->fl_pid = (pid_t)lock->svid;
+ fl->c.flc_pid = (pid_t)lock->svid;
error = decode_netobj(xdr, &lock->oh);
if (unlikely(error))
@@ -301,22 +280,15 @@ static int decode_nlm4_holder(struct xdr_stream *xdr, struct nlm_res *result)
if (unlikely(p == NULL))
goto out_overflow;
- fl->fl_flags = FL_POSIX;
- fl->fl_type = exclusive != 0 ? F_WRLCK : F_RDLCK;
+ fl->c.flc_flags = FL_POSIX;
+ fl->c.flc_type = exclusive != 0 ? F_WRLCK : F_RDLCK;
p = xdr_decode_hyper(p, &l_offset);
xdr_decode_hyper(p, &l_len);
- end = l_offset + l_len - 1;
-
- fl->fl_start = (loff_t)l_offset;
- if (l_len == 0 || end < 0)
- fl->fl_end = OFFSET_MAX;
- else
- fl->fl_end = (loff_t)end;
+ nlm4svc_set_file_lock_range(fl, l_offset, l_len);
error = 0;
out:
return error;
out_overflow:
- print_overflow_msg(__func__, xdr);
return -EIO;
}
@@ -379,12 +351,13 @@ static void encode_nlm4_lock(struct xdr_stream *xdr,
*/
static void nlm4_xdr_enc_testargs(struct rpc_rqst *req,
struct xdr_stream *xdr,
- const struct nlm_args *args)
+ const void *data)
{
+ const struct nlm_args *args = data;
const struct nlm_lock *lock = &args->lock;
encode_cookie(xdr, &args->cookie);
- encode_bool(xdr, lock->fl.fl_type == F_WRLCK);
+ encode_bool(xdr, lock->fl.c.flc_type == F_WRLCK);
encode_nlm4_lock(xdr, lock);
}
@@ -400,13 +373,14 @@ static void nlm4_xdr_enc_testargs(struct rpc_rqst *req,
*/
static void nlm4_xdr_enc_lockargs(struct rpc_rqst *req,
struct xdr_stream *xdr,
- const struct nlm_args *args)
+ const void *data)
{
+ const struct nlm_args *args = data;
const struct nlm_lock *lock = &args->lock;
encode_cookie(xdr, &args->cookie);
encode_bool(xdr, args->block);
- encode_bool(xdr, lock->fl.fl_type == F_WRLCK);
+ encode_bool(xdr, lock->fl.c.flc_type == F_WRLCK);
encode_nlm4_lock(xdr, lock);
encode_bool(xdr, args->reclaim);
encode_int32(xdr, args->state);
@@ -422,13 +396,14 @@ static void nlm4_xdr_enc_lockargs(struct rpc_rqst *req,
*/
static void nlm4_xdr_enc_cancargs(struct rpc_rqst *req,
struct xdr_stream *xdr,
- const struct nlm_args *args)
+ const void *data)
{
+ const struct nlm_args *args = data;
const struct nlm_lock *lock = &args->lock;
encode_cookie(xdr, &args->cookie);
encode_bool(xdr, args->block);
- encode_bool(xdr, lock->fl.fl_type == F_WRLCK);
+ encode_bool(xdr, lock->fl.c.flc_type == F_WRLCK);
encode_nlm4_lock(xdr, lock);
}
@@ -440,8 +415,9 @@ static void nlm4_xdr_enc_cancargs(struct rpc_rqst *req,
*/
static void nlm4_xdr_enc_unlockargs(struct rpc_rqst *req,
struct xdr_stream *xdr,
- const struct nlm_args *args)
+ const void *data)
{
+ const struct nlm_args *args = data;
const struct nlm_lock *lock = &args->lock;
encode_cookie(xdr, &args->cookie);
@@ -456,8 +432,10 @@ static void nlm4_xdr_enc_unlockargs(struct rpc_rqst *req,
*/
static void nlm4_xdr_enc_res(struct rpc_rqst *req,
struct xdr_stream *xdr,
- const struct nlm_res *result)
+ const void *data)
{
+ const struct nlm_res *result = data;
+
encode_cookie(xdr, &result->cookie);
encode_nlm4_stat(xdr, result->status);
}
@@ -477,8 +455,10 @@ static void nlm4_xdr_enc_res(struct rpc_rqst *req,
*/
static void nlm4_xdr_enc_testres(struct rpc_rqst *req,
struct xdr_stream *xdr,
- const struct nlm_res *result)
+ const void *data)
{
+ const struct nlm_res *result = data;
+
encode_cookie(xdr, &result->cookie);
encode_nlm4_stat(xdr, result->status);
if (result->status == nlm_lck_denied)
@@ -523,8 +503,9 @@ out:
static int nlm4_xdr_dec_testres(struct rpc_rqst *req,
struct xdr_stream *xdr,
- struct nlm_res *result)
+ void *data)
{
+ struct nlm_res *result = data;
int error;
error = decode_cookie(xdr, &result->cookie);
@@ -543,8 +524,9 @@ out:
*/
static int nlm4_xdr_dec_res(struct rpc_rqst *req,
struct xdr_stream *xdr,
- struct nlm_res *result)
+ void *data)
{
+ struct nlm_res *result = data;
int error;
error = decode_cookie(xdr, &result->cookie);
@@ -564,15 +546,15 @@ out:
#define PROC(proc, argtype, restype) \
[NLMPROC_##proc] = { \
.p_proc = NLMPROC_##proc, \
- .p_encode = (kxdreproc_t)nlm4_xdr_enc_##argtype, \
- .p_decode = (kxdrdproc_t)nlm4_xdr_dec_##restype, \
+ .p_encode = nlm4_xdr_enc_##argtype, \
+ .p_decode = nlm4_xdr_dec_##restype, \
.p_arglen = NLM4_##argtype##_sz, \
.p_replen = NLM4_##restype##_sz, \
.p_statidx = NLMPROC_##proc, \
.p_name = #proc, \
}
-static struct rpc_procinfo nlm4_procedures[] = {
+static const struct rpc_procinfo nlm4_procedures[] = {
PROC(TEST, testargs, testres),
PROC(LOCK, lockargs, res),
PROC(CANCEL, cancargs, res),
@@ -590,8 +572,10 @@ static struct rpc_procinfo nlm4_procedures[] = {
PROC(GRANTED_RES, res, norep),
};
+static unsigned int nlm_version4_counts[ARRAY_SIZE(nlm4_procedures)];
const struct rpc_version nlm_version4 = {
.number = 4,
.nrprocs = ARRAY_SIZE(nlm4_procedures),
.procs = nlm4_procedures,
+ .counts = nlm_version4_counts,
};
generated by cgit (git 2.34.1) at 2025-12-25 04:24:33 +0000