SMB2_CAP_DFS
if (sp->sv2_capabilities & SMB2_CAP_DFS)
s->srv_cap = smb2srv_capabilities & SMB2_CAP_DFS;
SMB2_CAP_DFS |
#define SMB_2X_CAPS (SMB2_CAP_DFS | SMB2_CAP_LEASING | SMB2_CAP_LARGE_MTU)
if ((sr->session->srv_cap & SMB2_CAP_DFS) == 0)