diff options
| author | Steve French <stfrench@microsoft.com> | 2018-04-02 04:15:55 +0300 |
|---|---|---|
| committer | Steve French <smfrench@gmail.com> | 2018-04-02 21:11:15 +0300 |
| commit | 07108d0e7c7fbbf9c6d76c0af2f1813e4f3f0800 (patch) | |
| tree | dc01c076ce918a4c8c4ef51035932dd8313caa8f /fs/cifs/smb2pdu.c | |
| parent | 7ea884c77e5c97f1e0a1a422d961d27f78ca2745 (diff) | |
| download | linux-07108d0e7c7fbbf9c6d76c0af2f1813e4f3f0800.tar.xz | |
cifs: Add minor debug message during negprot
Check for unknown security mode flags during negotiate protocol
if debugging enabled.
Signed-off-by: Steve French <smfrench@gmail.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
Diffstat (limited to 'fs/cifs/smb2pdu.c')
| -rw-r--r-- | fs/cifs/smb2pdu.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c index 0e04b577758d..f7741cee2a4c 100644 --- a/fs/cifs/smb2pdu.c +++ b/fs/cifs/smb2pdu.c @@ -584,8 +584,10 @@ SMB2_negotiate(const unsigned int xid, struct cifs_ses *ses) SMB2_MAX_BUFFER_SIZE); server->max_read = le32_to_cpu(rsp->MaxReadSize); server->max_write = le32_to_cpu(rsp->MaxWriteSize); - /* BB Do we need to validate the 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); /* Internal types */ server->capabilities |= SMB2_NT_FIND | SMB2_LARGE_FILES; |