usr/src/sys/deprecated/bbnnet/in_pcb.h

#define RCSINPCBHDR "$Header: in_pcb.h,v 1.7 85/07/31 09:31:17 walsh Exp $"

/*
 * Common structure pcb for internet protocol implementation.
 * Here are stored pointers to local and foreign host table
 * entries, local and foreign socket numbers, and pointers
 * up (to a socket structure) and down (to a protocol-specific)
 * control block.
 */
#define MAX_IPOPTLEN    60

struct inpcb {
        struct  inpcb *inp_next,*inp_prev;
                                        /* pointers to other pcb's */
        struct  in_addr inp_faddr;      /* foreign host table entry */
        struct  in_addr inp_laddr;      /* local host table entry */
        u_short         inp_fport;      /* foreign port */
        u_short         inp_lport;      /* local port */
        struct  socket *inp_socket;     /* back pointer to socket */
        caddr_t         inp_ppcb;       /* pointer to per-protocol pcb */
        struct  route   inp_route;      /* routing entry */
        char            inp_optlen;
        char            inp_options[MAX_IPOPTLEN];
};

/*
 * protocol specific structure passed to some pcb controlling routines.
 * new in 4.3 because addition of new protocols required a more generalized
 * in_pcbbind().  rootport <= resvport <= maxport.  non-superuser can
 * bind rootport -> maxport, but kernel will bind resvport -> maxport so
 * that projects can test things without being root and without fearing
 * someone may accidentally take their port.
 */

struct pr_advice {
        u_short rootport;       /* ports reserved exclusively for root */
        u_short resvport;       /* ports reserved from random allocation */
        u_short maxport;        /* absolute max port */
        u_short nowport;        /* port last used, initialize to resvport! */
        u_short portsize;       /* size of port (in bytes) */
        int (*bind_used)();     /* routine called to check before binding */
};

/*
 * protocol specific setsockopt/getsockopt calls.
 */
#define SO_IPROUTE              2

#define sotoinpcb(so)   ((struct inpcb *)(so)->so_pcb)


#ifdef KERNEL

extern struct inpcb *in_pcblookup();

#define uwake(inp)                              \
{                                               \
        sbwakeup(&inp->inp_socket->so_rcv);     \
        sbwakeup(&inp->inp_socket->so_snd);     \
}

#endif