提交 07108d0e 编写于 作者: S Steve French 提交者: Steve French

cifs: Add minor debug message during negprot

Check for unknown security mode flags during negotiate protocol
if debugging enabled.
Signed-off-by: NSteve French <smfrench@gmail.com>
Reviewed-by: NPavel Shilovsky <pshilov@microsoft.com>
上级 7ea884c7
...@@ -584,8 +584,10 @@ SMB2_negotiate(const unsigned int xid, struct cifs_ses *ses) ...@@ -584,8 +584,10 @@ SMB2_negotiate(const unsigned int xid, struct cifs_ses *ses)
SMB2_MAX_BUFFER_SIZE); SMB2_MAX_BUFFER_SIZE);
server->max_read = le32_to_cpu(rsp->MaxReadSize); server->max_read = le32_to_cpu(rsp->MaxReadSize);
server->max_write = le32_to_cpu(rsp->MaxWriteSize); server->max_write = le32_to_cpu(rsp->MaxWriteSize);
/* BB Do we need to validate the SecurityMode? */
server->sec_mode = le16_to_cpu(rsp->SecurityMode); server->sec_mode = le16_to_cpu(rsp->SecurityMode);
if ((server->sec_mode & SMB2_SEC_MODE_FLAGS_ALL) != server->sec_mode)
cifs_dbg(FYI, "Server returned unexpected security mode 0x%x\n",
server->sec_mode);
server->capabilities = le32_to_cpu(rsp->Capabilities); server->capabilities = le32_to_cpu(rsp->Capabilities);
/* Internal types */ /* Internal types */
server->capabilities |= SMB2_NT_FIND | SMB2_LARGE_FILES; server->capabilities |= SMB2_NT_FIND | SMB2_LARGE_FILES;
......
...@@ -249,6 +249,8 @@ struct smb2_negotiate_req { ...@@ -249,6 +249,8 @@ struct smb2_negotiate_req {
/* SecurityMode flags */ /* SecurityMode flags */
#define SMB2_NEGOTIATE_SIGNING_ENABLED 0x0001 #define SMB2_NEGOTIATE_SIGNING_ENABLED 0x0001
#define SMB2_NEGOTIATE_SIGNING_REQUIRED 0x0002 #define SMB2_NEGOTIATE_SIGNING_REQUIRED 0x0002
#define SMB2_SEC_MODE_FLAGS_ALL 0x0003
/* Capabilities flags */ /* Capabilities flags */
#define SMB2_GLOBAL_CAP_DFS 0x00000001 #define SMB2_GLOBAL_CAP_DFS 0x00000001
#define SMB2_GLOBAL_CAP_LEASING 0x00000002 /* Resp only New to SMB2.1 */ #define SMB2_GLOBAL_CAP_LEASING 0x00000002 /* Resp only New to SMB2.1 */
......
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