FreeBSD/Linux Kernel Cross Reference
sys/netipx/ipx_pcb.h
1 /*-
2 * Copyright (c) 1984, 1985, 1986, 1987, 1993
3 * The Regents of the University of California. All rights reserved.
4 * Copyright (c) 1995, Mike Mitchell
5 * Copyright (c) 2004-2006 Robert N. M. Watson
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 * must display the following acknowledgement:
17 * This product includes software developed by the University of
18 * California, Berkeley and its contributors.
19 * 4. Neither the name of the University nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 *
35 * @(#)ipx_pcb.h
36 *
37 * $FreeBSD$
38 */
39
40 #ifndef _NETIPX_IPX_PCB_H_
41 #define _NETIPX_IPX_PCB_H_
42
43 /*
44 * IPX protocol interface control block.
45 */
46 struct ipxpcb {
47 LIST_ENTRY(ipxpcb) ipxp_list;
48 struct socket *ipxp_socket; /* back pointer to socket */
49 struct ipx_addr ipxp_faddr; /* destination address */
50 struct ipx_addr ipxp_laddr; /* socket's address */
51 caddr_t ipxp_pcb; /* protocol specific stuff */
52 struct route ipxp_route; /* routing information */
53 struct ipx_addr ipxp_lastdst; /* validate cached route for dg socks*/
54 short ipxp_flags;
55 u_char ipxp_dpt; /* default packet type for ipx_output */
56 u_char ipxp_rpt; /* last received packet type by ipx_input() */
57 struct mtx ipxp_mtx;
58 };
59
60 /*
61 * Additional IPX pcb-related types and variables.
62 */
63 LIST_HEAD(ipxpcbhead, ipxpcb);
64 extern struct ipxpcbhead ipxpcb_list;
65 extern struct ipxpcbhead ipxrawpcb_list;
66
67 #ifdef _KERNEL
68 extern struct mtx ipxpcb_list_mtx;
69 #endif
70
71 /*
72 * IPX/SPX PCB flags.
73 */
74 #define IPXP_IN_ABORT 0x1 /* Calling abort through socket. */
75 #define IPXP_RAWIN 0x2 /* Show headers on input. */
76 #define IPXP_RAWOUT 0x4 /* Show header on output. */
77 #define IPXP_ALL_PACKETS 0x8 /* Turn off higher proto processing. */
78 #define IPXP_CHECKSUM 0x10 /* Use checksum on this socket. */
79 #define IPXP_DROPPED 0x20 /* Connection dropped. */
80 #define IPXP_SPX 0x40 /* SPX PCB. */
81
82 #define IPX_WILDCARD 1
83
84 #define ipxp_lport ipxp_laddr.x_port
85 #define ipxp_fport ipxp_faddr.x_port
86
87 #define sotoipxpcb(so) ((struct ipxpcb *)((so)->so_pcb))
88
89 /*
90 * Nominal space allocated to an IPX socket.
91 */
92 #define IPXSNDQ 16384
93 #define IPXRCVQ 40960
94
95 #ifdef _KERNEL
96 int ipx_pcballoc(struct socket *so, struct ipxpcbhead *head,
97 struct thread *p);
98 int ipx_pcbbind(struct ipxpcb *ipxp, struct sockaddr *nam,
99 struct thread *p);
100 int ipx_pcbconnect(struct ipxpcb *ipxp, struct sockaddr *nam,
101 struct thread *p);
102 void ipx_pcbdetach(struct ipxpcb *ipxp);
103 void ipx_pcbdisconnect(struct ipxpcb *ipxp);
104 void ipx_pcbfree(struct ipxpcb *ipxp);
105 struct ipxpcb *
106 ipx_pcblookup(struct ipx_addr *faddr, int lport, int wildp);
107 void ipx_setpeeraddr(struct ipxpcb *ipxp, struct sockaddr **nam);
108 void ipx_setsockaddr(struct ipxpcb *ipxp, struct sockaddr **nam);
109
110 #define IPX_LIST_LOCK_INIT() mtx_init(&ipxpcb_list_mtx, "ipx_list_mtx", \
111 NULL, MTX_DEF | MTX_RECURSE)
112 #define IPX_LIST_LOCK() mtx_lock(&ipxpcb_list_mtx)
113 #define IPX_LIST_UNLOCK() mtx_unlock(&ipxpcb_list_mtx)
114 #define IPX_LIST_LOCK_ASSERT() mtx_assert(&ipxpcb_list_mtx, MA_OWNED)
115
116 #define IPX_LOCK_INIT(ipx) mtx_init(&(ipx)->ipxp_mtx, "ipx_mtx", NULL, \
117 MTX_DEF)
118 #define IPX_LOCK_DESTROY(ipx) mtx_destroy(&(ipx)->ipxp_mtx)
119 #define IPX_LOCK(ipx) mtx_lock(&(ipx)->ipxp_mtx)
120 #define IPX_UNLOCK(ipx) mtx_unlock(&(ipx)->ipxp_mtx)
121 #define IPX_LOCK_ASSERT(ipx) mtx_assert(&(ipx)->ipxp_mtx, MA_OWNED)
122 #endif /* _KERNEL */
123
124 #endif /* !_NETIPX_IPX_PCB_H_ */
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