smb_tran_desc
struct smb_tran_desc *vc_tdesc; /* transport ops. vector */
extern struct smb_tran_desc smb_tran_nbtcp_desc;
LIST_ENTRY(smb_tran_desc) tr_link;
typedef struct smb_tran_desc smb_tran_desc_t;
struct smb_tran_desc smb_tran_nbtcp_desc = {