1 /* 2 * Copyright (c) 1982, 1986, 1990 Regents of the University of California. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms are permitted 6 * provided that the above copyright notice and this paragraph are 7 * duplicated in all such forms and that any documentation, 8 * advertising materials, and other materials related to such 9 * distribution and use acknowledge that the software was developed 10 * by the University of California, Berkeley. The name of the 11 * University may not be used to endorse or promote products derived 12 * from this software without specific prior written permission. 13 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR 14 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED 15 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. 16 * 17 * @(#)in_pcb.h 7.5 (Berkeley) 06/28/90 18 */ 19 20 /* 21 * Common structure pcb for internet protocol implementation. 22 * Here are stored pointers to local and foreign host table 23 * entries, local and foreign socket numbers, and pointers 24 * up (to a socket structure) and down (to a protocol-specific) 25 * control block. 26 */ 27 struct inpcb { 28 struct inpcb *inp_next,*inp_prev; 29 /* pointers to other pcb's */ 30 struct inpcb *inp_head; /* pointer back to chain of inpcb's 31 for this protocol */ 32 struct in_addr inp_faddr; /* foreign host table entry */ 33 u_short inp_fport; /* foreign port */ 34 struct in_addr inp_laddr; /* local host table entry */ 35 u_short inp_lport; /* local port */ 36 struct socket *inp_socket; /* back pointer to socket */ 37 caddr_t inp_ppcb; /* pointer to per-protocol pcb */ 38 struct route inp_route; /* placeholder for routing entry */ 39 int inp_flags; /* generic IP/datagram flags */ 40 struct ip inp_ip; /* header prototype; should have more */ 41 struct mbuf *inp_options; /* IP options */ 42 }; 43 44 /* flags in inp_flags: */ 45 #define INP_RECVOPTS 0x01 /* receive incoming IP options */ 46 #define INP_RECVRETOPTS 0x02 /* receive IP options for reply */ 47 #define INP_RECVDSTADDR 0x04 /* receive IP dst address */ 48 #define INP_CONTROLOPTS (INP_RECVOPTS|INP_RECVRETOPTS|INP_RECVDSTADDR) 49 50 #ifdef sotorawcb 51 /* 52 * Common structure pcb for raw internet protocol access. 53 * Here are internet specific extensions to the raw control block, 54 * and space is allocated to the necessary sockaddrs. 55 */ 56 struct raw_inpcb { 57 struct rawcb rinp_rcb; /* common control block prefix */ 58 struct mbuf *rinp_options; /* IP options */ 59 int rinp_flags; /* flags, e.g. raw sockopts */ 60 #define RINPF_HDRINCL 0x1 /* user supplies entire IP header */ 61 struct sockaddr_in rinp_faddr; /* foreign address */ 62 struct sockaddr_in rinp_laddr; /* local address */ 63 struct route rinp_route; /* placeholder for routing entry */ 64 }; 65 #endif 66 67 #define INPLOOKUP_WILDCARD 1 68 #define INPLOOKUP_SETLOCAL 2 69 70 #define sotoinpcb(so) ((struct inpcb *)(so)->so_pcb) 71 #define sotorawinpcb(so) ((struct raw_inpcb *)(so)->so_pcb) 72 73 #ifdef KERNEL 74 struct inpcb *in_pcblookup(); 75 #endif 76