xref: /original-bsd/sys/netns/ns_pcb.h (revision 65ba69af)
1 /*
2  * Copyright (c) 1984, 1985, 1986, 1987 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  *	@(#)ns_pcb.h	7.3 (Berkeley) 06/29/88
18  */
19 
20 /*
21  * Ns protocol interface control block.
22  */
23 struct nspcb {
24 	struct	nspcb *nsp_next;	/* doubly linked list */
25 	struct	nspcb *nsp_prev;
26 	struct	nspcb *nsp_head;
27 	struct	socket *nsp_socket;	/* back pointer to socket */
28 	struct	ns_addr nsp_faddr;	/* destination address */
29 	struct	ns_addr nsp_laddr;	/* socket's address */
30 	caddr_t	nsp_pcb;		/* protocol specific stuff */
31 	struct	route nsp_route;	/* routing information */
32 	struct	ns_addr nsp_lastdst;	/* validate cached route for dg socks*/
33 	long	nsp_notify_param;	/* extra info passed via ns_pcbnotify*/
34 	short	nsp_flags;
35 	u_char	nsp_dpt;		/* default packet type for idp_output*/
36 	u_char	nsp_rpt;		/* last received packet type by
37 								idp_input() */
38 };
39 
40 /* possible flags */
41 
42 #define NSP_IN_ABORT	0x1		/* calling abort through socket */
43 #define NSP_RAWIN	0x2		/* show headers on input */
44 #define NSP_RAWOUT	0x4		/* show header on output */
45 #define NSP_ALL_PACKETS	0x8		/* Turn off higher proto processing */
46 
47 #define	NS_WILDCARD	1
48 
49 #define nsp_lport nsp_laddr.x_port
50 #define nsp_fport nsp_faddr.x_port
51 
52 #define	sotonspcb(so)		((struct nspcb *)((so)->so_pcb))
53 
54 /*
55  * Nominal space allocated to a ns socket.
56  */
57 #define	NSSNDQ		2048
58 #define	NSRCVQ		2048
59 
60 
61 #ifdef KERNEL
62 struct	nspcb nspcb;			/* head of list */
63 struct	nspcb *ns_pcblookup();
64 #endif
65