提交 4587eee0 编写于 作者: S Steve French

SMB3: Validate negotiate request must always be signed

According to MS-SMB2 3.2.55 validate_negotiate request must
always be signed. Some Windows can fail the request if you send it unsigned

See kernel bugzilla bug 197311

CC: Stable <stable@vger.kernel.org>
Acked-by: Ronnie Sahlberg <lsahlber.redhat.com>
Signed-off-by: NSteve French <smfrench@gmail.com>
上级 a2d9daad
...@@ -1979,6 +1979,9 @@ SMB2_ioctl(const unsigned int xid, struct cifs_tcon *tcon, u64 persistent_fid, ...@@ -1979,6 +1979,9 @@ SMB2_ioctl(const unsigned int xid, struct cifs_tcon *tcon, u64 persistent_fid,
} else } else
iov[0].iov_len = get_rfc1002_length(req) + 4; iov[0].iov_len = get_rfc1002_length(req) + 4;
/* validate negotiate request must be signed - see MS-SMB2 3.2.5.5 */
if (opcode == FSCTL_VALIDATE_NEGOTIATE_INFO)
req->hdr.sync_hdr.Flags |= SMB2_FLAGS_SIGNED;
rc = SendReceive2(xid, ses, iov, n_iov, &resp_buftype, flags, &rsp_iov); rc = SendReceive2(xid, ses, iov, n_iov, &resp_buftype, flags, &rsp_iov);
cifs_small_buf_release(req); cifs_small_buf_release(req);
......
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