xref: /titanic_41/usr/src/lib/libdlpi/common/libdlpi_impl.h (revision 2b24ab6b3865caeede9eeb9db6b83e1d89dcd1ea)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 #ifndef	_LIBDLPI_IMPL_H
27 #define	_LIBDLPI_IMPL_H
28 
29 #include <libdlpi.h>
30 #include <sys/sysmacros.h>
31 
32 #ifdef __cplusplus
33 extern "C" {
34 #endif
35 
36 /*
37  * Maximum DLPI response size, in bytes.
38  */
39 #define	DLPI_CHUNKSIZE	8192
40 
41 /*
42  * Maximum SAP length, in bytes.
43  */
44 #define	DLPI_SAPLEN_MAX	4
45 
46 /*
47  * Number of elements in 'arr'.
48  */
49 #define	NELEMS(arr)	(sizeof (arr) / sizeof ((arr)[0]))
50 
51 /*
52  * Allocate buffer size for DLPI message, in bytes and set DLPI primitive.
53  */
54 #define	DLPI_MSG_CREATE(dlmsg, dlprimitive) \
55 	(dlmsg).dlm_msgsz = i_dlpi_getprimsize((dlprimitive)); \
56 	(dlmsg).dlm_msg = alloca((dlmsg).dlm_msgsz); \
57 	(dlmsg).dlm_msg->dl_primitive = (dlprimitive);
58 
59 /*
60  * Publicly available DLPI notification types. This list may change if
61  * new DLPI notification types are made public. See dlpi(7P).
62  *
63  */
64 #define	DLPI_NOTIFICATION_TYPES	(DL_NOTE_LINK_DOWN | DL_NOTE_LINK_UP | \
65 	DL_NOTE_PHYS_ADDR | DL_NOTE_SDU_SIZE | DL_NOTE_SPEED | \
66 	DL_NOTE_PROMISC_ON_PHYS | DL_NOTE_PROMISC_OFF_PHYS)
67 
68 /*
69  * Used in a mactype lookup table.
70  */
71 typedef struct dlpi_mactype_s {
72 	uint_t	dm_mactype;	/* DLPI/Private mactype */
73 	char 	*dm_desc;	/* Description of mactype */
74 } dlpi_mactype_t;
75 
76 /*
77  * Used to get the maximum DLPI message buffer size, in bytes.
78  */
79 typedef struct dlpi_primsz {
80 	t_uscalar_t	dp_prim;	/* store DLPI primitive */
81 	size_t		dp_primsz;
82 				/* max. message size, in bytes, for dp_prim */
83 } dlpi_primsz_t;
84 
85 /*
86  * Used to create DLPI message.
87  */
88 typedef struct dlpi_msg {
89 	union DL_primitives	*dlm_msg;
90 					/* store DLPI primitive message */
91 	size_t			dlm_msgsz;
92 					/* provide buffer size for dlm_msg */
93 } dlpi_msg_t;
94 
95 typedef struct dlpi_notifyent {
96 	uint_t			dln_notes;
97 					/* notification types registered */
98 	dlpi_notifyfunc_t	*dln_fnp;
99 					/* callback to call */
100 	void 			*arg;	/* argument to pass to callback */
101 	uint_t			dln_rm;	/* true if should be removed */
102 	struct dlpi_notifyent	*dln_next;
103 } dlpi_notifyent_t;
104 
105 /*
106  * Private libdlpi structure associated with each DLPI handle.
107  */
108 typedef struct dlpi_impl_s {
109 	int		dli_fd;		/* fd attached to stream */
110 	int		dli_timeout;	/* timeout for operations, in sec */
111 	char		dli_linkname[DLPI_LINKNAME_MAX];
112 					/* full linkname including PPA */
113 	char		dli_provider[DLPI_LINKNAME_MAX];
114 					/* only provider name */
115 	t_uscalar_t	dli_style;	/* style 1 or 2 */
116 	uint_t		dli_saplen;	/* bound SAP length */
117 	uint_t		dli_sap;	/* bound SAP value */
118 	boolean_t 	dli_sapbefore;	/* true if SAP precedes address */
119 	uint_t		dli_ppa;	/* physical point of attachment */
120 	uint_t		dli_mactype;	/* mac type */
121 	uint_t		dli_oflags;	/* flags set at open */
122 	uint_t		dli_note_processing;
123 					/* true if notification is being */
124 					/* processed */
125 	dlpi_notifyent_t *dli_notifylistp;
126 					/* list of registered notifications */
127 } dlpi_impl_t;
128 
129 #ifdef __cplusplus
130 }
131 #endif
132 
133 #endif /* _LIBDLPI_IMPL_H */
134