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authorRonnie Sahlberg <lsahlber@redhat.com>2017-11-20 11:24:43 +1100
committerSteve French <smfrench@gmail.com>2018-01-24 19:49:05 -0600
commit21ad9487ca3250c90ec36d68a8a3ee9f659450e3 (patch)
tree0f9f1a45ab40622cd2bb8c77c11344db59e0f994 /fs/cifs
parentb2fb7fecc9357c307b2ffe7695ea529cd3b15474 (diff)
downloadlinux-21ad9487ca3250c90ec36d68a8a3ee9f659450e3.tar.bz2
cifs: remove rfc1002 header from smb2_oplock_break we get from server
Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com> Signed-off-by: Steve French <smfrench@gmail.com> Acked-by: Pavel Shilovsky <pshilov@microsoft.com> Reviewed-by: Aurelien Aptel <aaptel@suse.com>
Diffstat (limited to 'fs/cifs')
-rw-r--r--fs/cifs/smb2misc.c2
-rw-r--r--fs/cifs/smb2pdu.c19
-rw-r--r--fs/cifs/smb2pdu.h14
3 files changed, 29 insertions, 6 deletions
diff --git a/fs/cifs/smb2misc.c b/fs/cifs/smb2misc.c
index 7b08a1446a7f..76d03abaa38c 100644
--- a/fs/cifs/smb2misc.c
+++ b/fs/cifs/smb2misc.c
@@ -578,7 +578,7 @@ smb2_is_valid_lease_break(char *buffer)
bool
smb2_is_valid_oplock_break(char *buffer, struct TCP_Server_Info *server)
{
- struct smb2_oplock_break *rsp = (struct smb2_oplock_break *)buffer;
+ struct smb2_oplock_break_rsp *rsp = (struct smb2_oplock_break_rsp *)buffer;
struct list_head *tmp, *tmp1, *tmp2;
struct cifs_ses *ses;
struct cifs_tcon *tcon;
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index 9421393a5c88..08e78ce5156f 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -3319,11 +3319,17 @@ SMB2_oplock_break(const unsigned int xid, struct cifs_tcon *tcon,
__u8 oplock_level)
{
int rc;
- struct smb2_oplock_break *req = NULL;
+ struct smb2_oplock_break_req *req = NULL;
+ struct cifs_ses *ses = tcon->ses;
int flags = CIFS_OBREAK_OP;
+ unsigned int total_len;
+ struct kvec iov[1];
+ struct kvec rsp_iov;
+ int resp_buf_type;
cifs_dbg(FYI, "SMB2_oplock_break\n");
- rc = small_smb2_init(SMB2_OPLOCK_BREAK, tcon, (void **) &req);
+ rc = smb2_plain_req_init(SMB2_OPLOCK_BREAK, tcon, (void **) &req,
+ &total_len);
if (rc)
return rc;
@@ -3333,9 +3339,14 @@ SMB2_oplock_break(const unsigned int xid, struct cifs_tcon *tcon,
req->VolatileFid = volatile_fid;
req->PersistentFid = persistent_fid;
req->OplockLevel = oplock_level;
- req->hdr.sync_hdr.CreditRequest = cpu_to_le16(1);
+ req->sync_hdr.CreditRequest = cpu_to_le16(1);
- rc = SendReceiveNoRsp(xid, tcon->ses, (char *) req, flags);
+ flags |= CIFS_NO_RESP;
+
+ iov[0].iov_base = (char *)req;
+ iov[0].iov_len = total_len;
+
+ rc = smb2_send_recv(xid, ses, iov, 1, &resp_buf_type, flags, &rsp_iov);
cifs_small_buf_release(req);
if (rc) {
diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h
index 9157d95d0c4e..da6a8ec885d1 100644
--- a/fs/cifs/smb2pdu.h
+++ b/fs/cifs/smb2pdu.h
@@ -1031,7 +1031,19 @@ struct smb2_set_info_rsp {
__le16 StructureSize; /* Must be 2 */
} __packed;
-struct smb2_oplock_break {
+/* oplock break without an rfc1002 header */
+struct smb2_oplock_break_req {
+ struct smb2_sync_hdr sync_hdr;
+ __le16 StructureSize; /* Must be 24 */
+ __u8 OplockLevel;
+ __u8 Reserved;
+ __le32 Reserved2;
+ __u64 PersistentFid;
+ __u64 VolatileFid;
+} __packed;
+
+/* oplock break with an rfc1002 header */
+struct smb2_oplock_break_rsp {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 24 */
__u8 OplockLevel;