xref: /titanic_44/usr/src/cmd/fm/fmd/common/fmd_case.h (revision b9238976491622ad75a67ab0c12edf99e36212b9)
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 /*
23  * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #ifndef	_FMD_CASE_H
28 #define	_FMD_CASE_H
29 
30 #pragma ident	"%Z%%M%	%I%	%E% SMI"
31 
32 #include <pthread.h>
33 #include <libnvpair.h>
34 
35 #ifdef	__cplusplus
36 extern "C" {
37 #endif
38 
39 #include <fmd_list.h>
40 #include <fmd_api.h>
41 #include <fmd_buf.h>
42 
43 struct fmd_module;			/* see <fmd_module.h> */
44 
45 typedef struct fmd_case_item {
46 	struct fmd_case_item *cit_next;	/* pointer to next element in list */
47 	fmd_event_t *cit_event;		/* pointer to held event */
48 } fmd_case_item_t;
49 
50 typedef struct fmd_case_susp {
51 	struct fmd_case_susp *cis_next;	/* pointer to next element in list */
52 	nvlist_t *cis_nvl;		/* nvpair representing fault event */
53 } fmd_case_susp_t;
54 
55 typedef struct fmd_case_impl {
56 	fmd_list_t ci_list;		/* linked list next/prev pointers */
57 	struct fmd_case_impl *ci_next;	/* next pointer for hash bucket chain */
58 	char *ci_uuid;			/* uuid string for this case */
59 	uint_t ci_uuidlen;		/* length of ci_uuid (not incl. \0) */
60 	char *ci_code;			/* code associated with this case */
61 	size_t ci_codelen;		/* size of ci_code buffer in bytes */
62 	struct fmd_module *ci_mod;	/* module that owns this case */
63 	fmd_xprt_t *ci_xprt;		/* transport for this case (or NULL) */
64 	void *ci_data;			/* data from fmd_case_setspecific() */
65 	pthread_mutex_t ci_lock;	/* lock for remainder of contents */
66 	uint_t ci_refs;			/* reference count */
67 	ushort_t ci_state;		/* case state (see below) */
68 	ushort_t ci_flags;		/* case flags (see below) */
69 	fmd_case_item_t *ci_items;	/* list of items in this case */
70 	uint_t ci_nitems;		/* number of ci_items */
71 	fmd_event_t *ci_principal;	/* principal event (if any) */
72 	fmd_case_susp_t *ci_suspects;	/* list of suspects in this case */
73 	uint_t ci_nsuspects;		/* number of ci_suspects */
74 	size_t ci_nvsz;			/* packed suspect nvlist array size */
75 	fmd_buf_hash_t ci_bufs;		/* hash of bufs associated with case */
76 	struct timeval ci_tv;		/* time of original diagnosis */
77 	int ci_tv_valid;		/* time of original diagnosis valid */
78 } fmd_case_impl_t;
79 
80 #define	FMD_CASE_CURRENT	-1u	/* flag for current state */
81 
82 #define	FMD_CASE_UNSOLVED	0	/* case is not yet solved (waiting) */
83 #define	FMD_CASE_SOLVED		1	/* case is solved (suspects added) */
84 #define	FMD_CASE_CLOSE_WAIT	2	/* case is executing fmdo_close() */
85 #define	FMD_CASE_CLOSED		3	/* case is closed (reconfig done) */
86 #define	FMD_CASE_REPAIRED	4	/* case is repaired (can be freed) */
87 
88 #define	FMD_CF_DIRTY		0x01	/* case is in need of checkpoint */
89 #define	FMD_CF_SOLVED		0x02	/* case has been solved */
90 #define	FMD_CF_ISOLATED		0x04	/* case has been isolated */
91 #define	FMD_CF_REPAIRED		0x08	/* case has been repaired */
92 #define	FMD_CF_REPAIRING	0x10	/* case repair in progress */
93 #define	FMD_CF_INVISIBLE	0x20	/* case should be invisible */
94 
95 typedef struct fmd_case_hash {
96 	pthread_rwlock_t ch_lock;	/* lock protecting case hash */
97 	fmd_case_impl_t **ch_hash;	/* hash bucket array for cases */
98 	uint_t ch_hashlen;		/* size of hash bucket array */
99 	uint_t ch_count;		/* number of cases in hash */
100 } fmd_case_hash_t;
101 
102 extern fmd_case_hash_t *fmd_case_hash_create(void);
103 extern void fmd_case_hash_destroy(fmd_case_hash_t *);
104 extern fmd_case_t *fmd_case_hash_lookup(fmd_case_hash_t *, const char *);
105 extern void fmd_case_hash_apply(fmd_case_hash_t *,
106     void (*)(fmd_case_t *, void *), void *);
107 
108 extern fmd_case_t *fmd_case_create(struct fmd_module *, void *);
109 extern fmd_case_t *fmd_case_recreate(struct fmd_module *,
110     struct fmd_xprt *, uint_t, const char *, const char *);
111 extern void fmd_case_destroy(fmd_case_t *, int);
112 extern void fmd_case_hold(fmd_case_t *);
113 extern void fmd_case_hold_locked(fmd_case_t *);
114 extern void fmd_case_rele(fmd_case_t *);
115 
116 extern int fmd_case_insert_principal(fmd_case_t *, fmd_event_t *);
117 extern int fmd_case_insert_event(fmd_case_t *, fmd_event_t *);
118 
119 extern void fmd_case_insert_suspect(fmd_case_t *, nvlist_t *);
120 extern void fmd_case_recreate_suspect(fmd_case_t *, nvlist_t *);
121 extern void fmd_case_reset_suspects(fmd_case_t *);
122 
123 extern nvlist_t *fmd_case_mkevent(fmd_case_t *, const char *);
124 extern void fmd_case_publish(fmd_case_t *, uint_t);
125 extern void fmd_case_transition(fmd_case_t *, uint_t, uint_t);
126 extern void fmd_case_transition_update(fmd_case_t *, uint_t, uint_t);
127 extern void fmd_case_setdirty(fmd_case_t *);
128 extern void fmd_case_clrdirty(fmd_case_t *);
129 extern void fmd_case_commit(fmd_case_t *);
130 extern void fmd_case_update(fmd_case_t *);
131 extern void fmd_case_delete(fmd_case_t *);
132 extern void fmd_case_discard(fmd_case_t *);
133 extern void fmd_case_settime(fmd_case_t *, time_t, suseconds_t);
134 
135 extern int fmd_case_repair(fmd_case_t *);
136 extern int fmd_case_contains(fmd_case_t *, fmd_event_t *);
137 extern int fmd_case_orphaned(fmd_case_t *);
138 
139 #ifdef	__cplusplus
140 }
141 #endif
142 
143 #endif	/* _FMD_CASE_H */
144