BSD 4_3 release

[unix-history] / usr / src / sys / net / raw_cb.h

/*
* Copyright (c) 1980, 1986 Regents of the University of California.
* All rights reserved.  The Berkeley software License Agreement
* specifies the terms and conditions for redistribution.
*
*      @(#)raw_cb.h    7.1 (Berkeley) 6/4/86
*/

/*
* Raw protocol interface control block.  Used
* to tie a socket to the generic raw interface.
*/
struct rawcb {
       struct  rawcb *rcb_next;        /* doubly linked list */
       struct  rawcb *rcb_prev;
       struct  socket *rcb_socket;     /* back pointer to socket */
       struct  sockaddr rcb_faddr;     /* destination address */
       struct  sockaddr rcb_laddr;     /* socket's address */
       struct  sockproto rcb_proto;    /* protocol family, protocol */
       caddr_t rcb_pcb;                /* protocol specific stuff */
       struct  mbuf *rcb_options;      /* protocol specific options */
       struct  route rcb_route;        /* routing information */
       short   rcb_flags;
};

/*
* Since we can't interpret canonical addresses,
* we mark an address present in the flags field.
*/
#define RAW_LADDR       01
#define RAW_FADDR       02
#define RAW_DONTROUTE   04              /* no routing, default */

#define sotorawcb(so)           ((struct rawcb *)(so)->so_pcb)

/*
* Nominal space allocated to a raw socket.
*/
#define RAWSNDQ         2048
#define RAWRCVQ         2048

/*
* Format of raw interface header prepended by
* raw_input after call from protocol specific
* input routine.
*/
struct raw_header {
       struct  sockproto raw_proto;    /* format of packet */
       struct  sockaddr raw_dst;       /* dst address for rawintr */
       struct  sockaddr raw_src;       /* src address for sbappendaddr */
};

#ifdef KERNEL
struct rawcb rawcb;                     /* head of list */
#endif