xref: /illumos-gate/usr/src/cmd/fm/modules/common/fabric-xlate/fabric-xlate.c (revision d8a7fe16f62711cdc5c4267da8b34ff24a6b668c)
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 2009 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 #include <fm/libtopo.h>
27 #include <sys/fm/util.h>
28 
29 #include <libxml/xpathInternals.h>
30 
31 #include "fabric-xlate.h"
32 
33 #define	XMLTOPOFILE "/tmp/fab-xlate-topo.xml"
34 
35 fmd_xprt_t *fab_fmd_xprt;	/* FMD transport layer handle */
36 char fab_buf[FM_MAX_CLASS];
37 
38 /* Static FM Topo XML Format and XML XPath Context  */
39 static xmlDocPtr	fab_doc = NULL;
40 xmlXPathContextPtr	fab_xpathCtx = NULL;
41 static int		fab_valid_topo = 0;
42 
43 static void
44 fab_update_topo(fmd_hdl_t *hdl)
45 {
46 	topo_hdl_t	*thp = NULL;
47 	FILE		*fp;
48 	int		err = 0;
49 
50 	if ((thp = fmd_hdl_topo_hold(hdl, TOPO_VERSION)) == NULL) {
51 		fmd_hdl_debug(hdl, "Failed to hold topo\n");
52 	}
53 
54 	fp = fopen(XMLTOPOFILE, "w");
55 
56 	if (topo_xml_print(thp, fp, FM_FMRI_SCHEME_HC, &err) < 0) {
57 		fmd_hdl_debug(hdl, "Failed to get XML topo\n");
58 	}
59 
60 	(void) fclose(fp);
61 
62 	fmd_hdl_topo_rele(hdl, thp);
63 
64 	if (fab_xpathCtx)
65 		xmlXPathFreeContext(fab_xpathCtx);
66 	if (fab_doc)
67 		xmlFreeDoc(fab_doc);
68 
69 	/* Load xml document */
70 	fab_doc = xmlParseFile(XMLTOPOFILE);
71 
72 	/* Init xpath */
73 	fab_xpathCtx = xmlXPathNewContext(fab_doc);
74 
75 	fab_valid_topo = 1;
76 }
77 
78 /*ARGSUSED*/
79 static void
80 fab_recv(fmd_hdl_t *hdl, fmd_event_t *ep, nvlist_t *nvl, const char *class)
81 {
82 	nvlist_t *new_nvl;
83 
84 	if (!fab_valid_topo)
85 		fab_update_topo(hdl);
86 
87 	if (nvlist_dup(nvl, &new_nvl, NV_UNIQUE_NAME) != 0) {
88 		fmd_hdl_error(hdl, "failed to duplicate event");
89 		return;
90 	}
91 
92 	if (fmd_nvl_class_match(hdl, new_nvl, "ereport.io.pci.fabric")) {
93 		fab_xlate_fabric_erpts(hdl, new_nvl, class);
94 	} else {
95 		fab_pr(hdl, ep, new_nvl);
96 		if (fmd_nvl_class_match(hdl, new_nvl,
97 		    "ereport.io.pciex.rc.epkt")) {
98 			fab_xlate_epkt_erpts(hdl, new_nvl, class);
99 		} else {
100 			fab_xlate_fire_erpts(hdl, new_nvl, class);
101 		}
102 	}
103 
104 	nvlist_free(new_nvl);
105 }
106 
107 /* ARGSUSED */
108 static void
109 fab_topo(fmd_hdl_t *hdl, topo_hdl_t *topo)
110 {
111 	fab_valid_topo = 0;
112 }
113 
114 static const fmd_hdl_ops_t fmd_ops = {
115 	fab_recv,	/* fmdo_recv */
116 	NULL,		/* fmdo_timeout */
117 	NULL,		/* fmdo_close */
118 	NULL,		/* fmdo_stats */
119 	NULL,		/* fmdo_gc */
120 	NULL,		/* fmdo_send */
121 	fab_topo,	/* fmdo_topo */
122 };
123 
124 static const fmd_hdl_info_t fmd_info = {
125 	"Fabric Ereport Translater", "1.0", &fmd_ops, NULL
126 };
127 
128 void
129 _fmd_init(fmd_hdl_t *hdl)
130 {
131 	if (fmd_hdl_register(hdl, FMD_API_VERSION, &fmd_info) != 0)
132 		return;
133 
134 	/* Init libxml */
135 	xmlInitParser();
136 
137 	fab_fmd_xprt = fmd_xprt_open(hdl, FMD_XPRT_RDONLY, NULL, NULL);
138 	fmd_hdl_debug(hdl, "Fabric Translater Started\n");
139 
140 	fab_setup_master_table();
141 }
142 
143 void
144 _fmd_fini(fmd_hdl_t *hdl)
145 {
146 	/* Fini xpath */
147 	if (fab_xpathCtx)
148 		xmlXPathFreeContext(fab_xpathCtx);
149 	/* Free xml document */
150 	if (fab_doc)
151 		xmlFreeDoc(fab_doc);
152 	/* Fini libxml */
153 	xmlCleanupParser();
154 
155 	fmd_xprt_close(hdl, fab_fmd_xprt);
156 }
157