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Annotation of 43BSDReno/sys/netinet/in_pcb.h, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1982, 1986, 1990 Regents of the University of California.
                      3:  * All rights reserved.
                      4:  *
                      5:  * Redistribution is only permitted until one year after the first shipment
                      6:  * of 4.4BSD by the Regents.  Otherwise, redistribution and use in source and
                      7:  * binary forms are permitted provided that: (1) source distributions retain
                      8:  * this entire copyright notice and comment, and (2) distributions including
                      9:  * binaries display the following acknowledgement:  This product includes
                     10:  * software developed by the University of California, Berkeley and its
                     11:  * contributors'' in the documentation or other materials provided with the
                     12:  * distribution and in all advertising materials mentioning features or use
                     13:  * of this software.  Neither the name of the University nor the names of
                     14:  * its contributors may be used to endorse or promote products derived from
                     15:  * this software without specific prior written permission.
                     16:  * THIS SOFTWARE IS PROVIDED AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
                     17:  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
                     18:  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
                     19:  *
                     20:  *     @(#)in_pcb.h    7.6 (Berkeley) 6/28/90
                     21:  */
                     22: 
                     23: /*
                     24:  * Common structure pcb for internet protocol implementation.
                     25:  * Here are stored pointers to local and foreign host table
                     26:  * entries, local and foreign socket numbers, and pointers
                     27:  * up (to a socket structure) and down (to a protocol-specific)
                     28:  * control block.
                     29:  */
                     30: struct inpcb {
                     31:        struct  inpcb *inp_next,*inp_prev;
                     32:                                        /* pointers to other pcb's */
                     33:        struct  inpcb *inp_head;        /* pointer back to chain of inpcb's
                     34:                                           for this protocol */
                     35:        struct  in_addr inp_faddr;      /* foreign host table entry */
                     36:        u_short inp_fport;              /* foreign port */
                     37:        struct  in_addr inp_laddr;      /* local host table entry */
                     38:        u_short inp_lport;              /* local port */
                     39:        struct  socket *inp_socket;     /* back pointer to socket */
                     40:        caddr_t inp_ppcb;               /* pointer to per-protocol pcb */
                     41:        struct  route inp_route;        /* placeholder for routing entry */
                     42:        int     inp_flags;              /* generic IP/datagram flags */
                     43:        struct  ip inp_ip;              /* header prototype; should have more */
                     44:        struct  mbuf *inp_options;      /* IP options */
                     45: };
                     46: 
                     47: /* flags in inp_flags: */
                     48: #define        INP_RECVOPTS            0x01    /* receive incoming IP options */
                     49: #define        INP_RECVRETOPTS         0x02    /* receive IP options for reply */
                     50: #define        INP_RECVDSTADDR         0x04    /* receive IP dst address */
                     51: #define        INP_CONTROLOPTS         (INP_RECVOPTS|INP_RECVRETOPTS|INP_RECVDSTADDR)
                     52: 
                     53: #ifdef sotorawcb
                     54: /*
                     55:  * Common structure pcb for raw internet protocol access.
                     56:  * Here are internet specific extensions to the raw control block,
                     57:  * and space is allocated to the necessary sockaddrs.
                     58:  */
                     59: struct raw_inpcb {
                     60:        struct  rawcb rinp_rcb; /* common control block prefix */
                     61:        struct  mbuf *rinp_options;     /* IP options */
                     62:        int     rinp_flags;             /* flags, e.g. raw sockopts */
                     63: #define        RINPF_HDRINCL   0x1             /* user supplies entire IP header */
                     64:        struct  sockaddr_in rinp_faddr; /* foreign address */
                     65:        struct  sockaddr_in rinp_laddr; /* local address */
                     66:        struct  route rinp_route;       /* placeholder for routing entry */
                     67: };
                     68: #endif
                     69: 
                     70: #define        INPLOOKUP_WILDCARD      1
                     71: #define        INPLOOKUP_SETLOCAL      2
                     72: 
                     73: #define        sotoinpcb(so)   ((struct inpcb *)(so)->so_pcb)
                     74: #define        sotorawinpcb(so)        ((struct raw_inpcb *)(so)->so_pcb)
                     75: 
                     76: #ifdef KERNEL
                     77: struct inpcb *in_pcblookup();
                     78: #endif

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