From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pj1-f49.google.com (mail-pj1-f49.google.com [209.85.216.49]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7CFA64CE1F for ; Tue, 26 Dec 2023 10:54:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Received: by mail-pj1-f49.google.com with SMTP id 98e67ed59e1d1-28c7c422ad9so292228a91.3 for ; Tue, 26 Dec 2023 02:54:14 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1703588054; x=1704192854; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=U8fy9kS1fRyKFoBsaADhaTLdVMcrnoHblkFvtu/BD58=; b=k/7crfY1jrb3/C6zpRlgIb0Kcfr/Wc2x4OOp2SctEYcZBxB79gPA9WQmNLxni5sKiQ k3Q5jEBLMLLLhIcinzs4YrRP1l6/ZgaT84ONtKx28wgMzyJprkymljZvurMh7Q5sQYxX nw7wM0PlK+twIsOSMtKI1K9zHgxUnzHCM75LotC/cVWBeta/xnjYaVGKbDuNxZxev6QN W15wggSz2TvsVFJVQUoBlr1GWySipyrxs/YVD9pE1FBYrbBakS4HJ4nF9kepDU1aDKjB JpXw9NINGs8SubW38iLr3bsO2A/o5MdshtZyXSI6pnNB4GrepRwjRTIFibW4AETVoxFj hTJw== X-Gm-Message-State: AOJu0YxDW26qToxYHy6Z4+p8JOJLKHNAgdoqKUUzk2mLTbdjMYRrHZ0p mn3no7SYzVxkzBNABlB/kVISLtjGSCw= X-Google-Smtp-Source: AGHT+IHYTyiLWneHOe2UsWFdcLYP/nU+GZ7czA8GplVDTdzOkSdFWsmV5SdQqSVqYfJdrzNQTn+jmA== X-Received: by 2002:a17:90a:f004:b0:28c:2786:48be with SMTP id bt4-20020a17090af00400b0028c278648bemr2034910pjb.49.1703588053809; Tue, 26 Dec 2023 02:54:13 -0800 (PST) Received: from localhost.localdomain ([110.14.71.32]) by smtp.gmail.com with ESMTPSA id sg4-20020a17090b520400b0028be1050020sm10874972pjb.29.2023.12.26.02.54.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 26 Dec 2023 02:54:11 -0800 (PST) From: Namjae Jeon To: gregkh@linuxfoundation.org, stable@vger.kernel.org Cc: smfrench@gmail.com, Namjae Jeon , Steve French Subject: [PATCH 5.15.y 4/8] ksmbd: downgrade RWH lease caching state to RH for directory Date: Tue, 26 Dec 2023 19:53:29 +0900 Message-Id: <20231226105333.5150-5-linkinjeon@kernel.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20231226105333.5150-1-linkinjeon@kernel.org> References: <20231226105333.5150-1-linkinjeon@kernel.org> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit [ Upstream commit eb547407f3572d2110cb1194ecd8865b3371a7a4 ] 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 Signed-off-by: Steve French --- fs/ksmbd/oplock.c | 9 +++++++-- fs/ksmbd/oplock.h | 2 +- fs/ksmbd/smb2pdu.c | 8 ++++---- 3 files changed, 12 insertions(+), 7 deletions(-) diff --git a/fs/ksmbd/oplock.c b/fs/ksmbd/oplock.c index 24716dbe7108..600312e2c6c2 100644 --- a/fs/ksmbd/oplock.c +++ b/fs/ksmbd/oplock.c @@ -1398,10 +1398,11 @@ void create_lease_buf(u8 *rbuf, struct lease *lease) /** * parse_lease_state() - parse lease context containted in file open request * @open_req: buffer containing smb2 file open(create) request + * @is_dir: whether leasing file is directory * * 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 +1420,11 @@ 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/ksmbd/oplock.h b/fs/ksmbd/oplock.h index ad31439c61fe..672127318c75 100644 --- a/fs/ksmbd/oplock.h +++ b/fs/ksmbd/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/ksmbd/smb2pdu.c b/fs/ksmbd/smb2pdu.c index 7ce5746f9167..6a3cd6ea3af1 100644 --- a/fs/ksmbd/smb2pdu.c +++ b/fs/ksmbd/smb2pdu.c @@ -2729,10 +2729,6 @@ 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_LE)) { pr_err("Invalid impersonationlevel : 0x%x\n", le32_to_cpu(req->ImpersonationLevel)); @@ -3212,6 +3208,10 @@ 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