1 /*
2  * Copyright (c) 2001-2003
3  *	Fraunhofer Institute for Open Communication Systems (FhG Fokus).
4  * 	All rights reserved.
5  *
6  * Author: Hartmut Brandt <[email protected]>
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  *
29  * $Begemot: libunimsg/netnatm/api/unisap.h,v 1.6 2005/05/23 11:49:17 brandt_h Exp $
30  */
31 #ifndef _NETNATM_API_UNISAP_H_
32 #define _NETNATM_API_UNISAP_H_
33 
34 #include <netnatm/msg/uni_config.h>
35 
36 enum unisve_tag {
37 	UNISVE_ABSENT,		/* Element is absent */
38 	UNISVE_PRESENT,		/* Element is present with specific value */
39 	UNISVE_ANY		/* Any values is acceptable */
40 };
41 
42 struct unisve_addr {
43 	enum unisve_tag		tag;
44 	enum uni_addr_type	type;	/* type of address */
45 	enum uni_addr_plan	plan;	/* addressing plan */
46 	uint32_t		len;	/* length of address */
47 	u_char			addr[UNI_ADDR_MAXLEN];
48 };
49 
50 struct unisve_selector {
51 	enum unisve_tag	tag;
52 	uint8_t		selector;
53 };
54 
55 struct unisve_blli_id2 {
56 	enum unisve_tag	tag;
57 	u_int		proto:5;	/* the protocol */
58 	u_int		user:7;		/* user specific protocol */
59 };
60 
61 struct unisve_blli_id3 {
62 	enum unisve_tag	tag;
63 	u_int		proto:5;	/* L3 protocol */
64 	u_int		user:7;		/* user specific protocol */
65 	u_int		ipi:8;		/* ISO/IEC TR 9557 IPI */
66 	u_int		oui:24;		/* IEEE 802.1 OUI */
67 	u_int		pid:16;		/* IEEE 802.1 PID */
68 	uint32_t	noipi;		/* ISO/IEC TR 9557 per frame */
69 };
70 
71 struct unisve_bhli {
72 	enum unisve_tag	tag;
73 	enum uni_bhli	type;		/* type of info */
74 	uint32_t	len;		/* length of info */
75 	uint8_t		info[8];	/* info itself */
76 };
77 
78 struct uni_sap {
79 	struct unisve_addr	addr;
80 	struct unisve_selector	selector;
81 	struct unisve_blli_id2	blli_id2;
82 	struct unisve_blli_id3	blli_id3;
83 	struct unisve_bhli	bhli;
84 };
85 
86 int unisve_check_addr(const struct unisve_addr *);
87 int unisve_check_selector(const struct unisve_selector *);
88 int unisve_check_blli_id2(const struct unisve_blli_id2 *);
89 int unisve_check_blli_id3(const struct unisve_blli_id3 *);
90 int unisve_check_bhli(const struct unisve_bhli *);
91 
92 int unisve_check_sap(const struct uni_sap *);
93 
94 int unisve_overlap_addr(const struct unisve_addr *, const struct unisve_addr *);
95 int unisve_overlap_selector(const struct unisve_selector *,
96     const struct unisve_selector *);
97 int unisve_overlap_blli_id2(const struct unisve_blli_id2 *,
98     const struct unisve_blli_id2 *);
99 int unisve_overlap_blli_id3(const struct unisve_blli_id3 *,
100     const struct unisve_blli_id3 *);
101 int unisve_overlap_bhli(const struct unisve_bhli *,
102     const struct unisve_bhli *);
103 int unisve_overlap_sap(const struct uni_sap *, const struct uni_sap *);
104 
105 int unisve_is_catchall(const struct uni_sap *);
106 int unisve_match(const struct uni_sap *, const struct uni_ie_called *,
107 	const struct uni_ie_blli *, const struct uni_ie_bhli *);
108 
109 enum {
110 	UNISVE_OK = 0,
111 	UNISVE_ERROR_BAD_TAG,
112 	UNISVE_ERROR_TYPE_PLAN_CONFLICT,
113 	UNISVE_ERROR_ADDR_SEL_CONFLICT,
114 	UNISVE_ERROR_ADDR_LEN,
115 	UNISVE_ERROR_BAD_ADDR_TYPE,
116 	UNISVE_ERROR_BAD_BHLI_TYPE,
117 	UNISVE_ERROR_BAD_BHLI_LEN,
118 };
119 
120 #define UNISVE_ERRSTR					\
121 	"no error",					\
122 	"bad SVE tag",					\
123 	"bad address type/plan combination",		\
124 	"bad address plan/selector tag combination",	\
125 	"bad address length in SVE",			\
126 	"unknown address type in SVE",			\
127 	"bad BHLI type in SVE",				\
128 	"BHLI info too long in SVE",
129 
130 #endif
131