usr/src/sys/netns/ns_pcb.h

/*
 * Copyright (c) 1982 Regents of the University of California.
 * All rights reserved.  The Berkeley software License Agreement
 * specifies the terms and conditions for redistribution.
 *
 *      @(#)ns_pcb.h    6.4 (Berkeley) %G%
 */

/*
 * Ns protocol interface control block.
 */
struct nspcb {
        struct  nspcb *nsp_next;        /* doubly linked list */
        struct  nspcb *nsp_prev;
        struct  nspcb *nsp_head;
        struct  socket *nsp_socket;     /* back pointer to socket */
        struct  ns_addr nsp_faddr;      /* destination address */
        struct  ns_addr nsp_laddr;      /* socket's address */
        caddr_t nsp_pcb;                /* protocol specific stuff */
        struct  route nsp_route;        /* routing information */
        struct  ns_addr nsp_lastdst;    /* validate cached route for dg socks*/
        long    nsp_notify_param;       /* extra info passed via ns_pcbnotify*/
        short   nsp_flags;
        u_char  nsp_dpt;                /* default packet type for idp_output*/
        u_char  nsp_rpt;                /* last received packet type by
                                                                idp_input() */
};

/* possible flags */

#define NSP_IN_ABORT    0x1             /* calling abort through socket */
#define NSP_RAWIN       0x2             /* show headers on input */
#define NSP_RAWOUT      0x4             /* show header on output */
#define NSP_ALL_PACKETS 0x8             /* Turn off higher proto processing */

#define NS_WILDCARD     1

#define nsp_lport nsp_laddr.x_port
#define nsp_fport nsp_faddr.x_port

#define sotonspcb(so)           ((struct nspcb *)((so)->so_pcb))

/*
 * Nominal space allocated to a ns socket.
 */
#define NSSNDQ          2048
#define NSRCVQ          2048


#ifdef KERNEL
extern struct nspcb nspcb;                      /* head of list */
extern struct nspcb *ns_pcblookup();
#endif