From: Namjae Jeon <linkinjeon@kernel.org>
To: linux-cifs@vger.kernel.org
Cc: smfrench@gmail.com, senozhatsky@chromium.org, tom@talpey.com,
atteh.mailbox@gmail.com, Namjae Jeon <linkinjeon@kernel.org>
Subject: [PATCH 3/7] ksmbd: downgrade RWH lease caching state to RH for directory
Date: Mon, 4 Dec 2023 22:45:05 +0900 [thread overview]
Message-ID: <20231204134509.11413-3-linkinjeon@kernel.org> (raw)
In-Reply-To: <20231204134509.11413-1-linkinjeon@kernel.org>
RWH(Read + Write + Handle) caching state is not supported for directory.
ksmbd downgrade it to RH for directory if client send RWH caching lease
state.
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
---
fs/smb/server/oplock.c | 8 ++++++--
fs/smb/server/oplock.h | 2 +-
fs/smb/server/smb2pdu.c | 8 ++++----
3 files changed, 11 insertions(+), 7 deletions(-)
diff --git a/fs/smb/server/oplock.c b/fs/smb/server/oplock.c
index 5ef6af68d0de..ac327258506a 100644
--- a/fs/smb/server/oplock.c
+++ b/fs/smb/server/oplock.c
@@ -1401,7 +1401,7 @@ void create_lease_buf(u8 *rbuf, struct lease *lease)
*
* Return: oplock state, -ENOENT if create lease context not found
*/
-struct lease_ctx_info *parse_lease_state(void *open_req)
+struct lease_ctx_info *parse_lease_state(void *open_req, bool is_dir)
{
struct create_context *cc;
struct smb2_create_req *req = (struct smb2_create_req *)open_req;
@@ -1419,7 +1419,11 @@ struct lease_ctx_info *parse_lease_state(void *open_req)
struct create_lease_v2 *lc = (struct create_lease_v2 *)cc;
memcpy(lreq->lease_key, lc->lcontext.LeaseKey, SMB2_LEASE_KEY_SIZE);
- lreq->req_state = lc->lcontext.LeaseState;
+ if (is_dir)
+ lreq->req_state = lc->lcontext.LeaseState &
+ ~SMB2_LEASE_WRITE_CACHING_LE;
+ else
+ lreq->req_state = lc->lcontext.LeaseState;
lreq->flags = lc->lcontext.LeaseFlags;
lreq->epoch = lc->lcontext.Epoch;
lreq->duration = lc->lcontext.LeaseDuration;
diff --git a/fs/smb/server/oplock.h b/fs/smb/server/oplock.h
index ad31439c61fe..672127318c75 100644
--- a/fs/smb/server/oplock.h
+++ b/fs/smb/server/oplock.h
@@ -109,7 +109,7 @@ void opinfo_put(struct oplock_info *opinfo);
/* Lease related functions */
void create_lease_buf(u8 *rbuf, struct lease *lease);
-struct lease_ctx_info *parse_lease_state(void *open_req);
+struct lease_ctx_info *parse_lease_state(void *open_req, bool is_dir);
__u8 smb2_map_lease_to_oplock(__le32 lease_state);
int lease_read_to_write(struct oplock_info *opinfo);
diff --git a/fs/smb/server/smb2pdu.c b/fs/smb/server/smb2pdu.c
index bf1dea10c9e7..2d3b8acb21e7 100644
--- a/fs/smb/server/smb2pdu.c
+++ b/fs/smb/server/smb2pdu.c
@@ -2732,10 +2732,6 @@ int smb2_open(struct ksmbd_work *work)
}
}
- req_op_level = req->RequestedOplockLevel;
- if (req_op_level == SMB2_OPLOCK_LEVEL_LEASE)
- lc = parse_lease_state(req);
-
if (le32_to_cpu(req->ImpersonationLevel) > le32_to_cpu(IL_DELEGATE)) {
pr_err("Invalid impersonationlevel : 0x%x\n",
le32_to_cpu(req->ImpersonationLevel));
@@ -3215,6 +3211,10 @@ int smb2_open(struct ksmbd_work *work)
need_truncate = 1;
}
+ req_op_level = req->RequestedOplockLevel;
+ if (req_op_level == SMB2_OPLOCK_LEVEL_LEASE)
+ lc = parse_lease_state(req, S_ISDIR(file_inode(filp)->i_mode));
+
share_ret = ksmbd_smb_check_shared_mode(fp->filp, fp);
if (!test_share_config_flag(work->tcon->share_conf, KSMBD_SHARE_FLAG_OPLOCKS) ||
(req_op_level == SMB2_OPLOCK_LEVEL_LEASE &&
--
2.25.1
next prev parent reply other threads:[~2023-12-04 13:45 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-04 13:45 [PATCH 1/7] ksmbd: set epoch in create context v2 lease Namjae Jeon
2023-12-04 13:45 ` [PATCH 2/7] ksmbd: set v2 lease capability Namjae Jeon
2023-12-04 13:45 ` Namjae Jeon [this message]
2023-12-04 13:45 ` [PATCH 4/7] ksmbd: send v2 lease break notification for directory Namjae Jeon
2023-12-04 13:45 ` [PATCH 5/7] ksmbd: lazy v2 lease break on smb2_write() Namjae Jeon
2023-12-04 13:45 ` [PATCH 6/7] ksmbd: avoid duplicate opinfo_put() call on error of smb21_lease_break_ack() Namjae Jeon
2023-12-04 13:45 ` [PATCH 7/7] ksmbd: fix wrong allocation size update in smb2_open() Namjae Jeon
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