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 (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
24  */
25 
26 /*
27  * Copyright 2019 Joyent, Inc.
28  */
29 
30 #include <sys/types.h>
31 #include <strings.h>
32 #include <fm/fmd_api.h>
33 #include <sys/fm/protocol.h>
34 #include <sys/fm/util.h>
35 #include <sys/sysevent.h>
36 
37 #include "fmevt.h"
38 
39 static evchan_t *fmevt_outbound_chan;
40 
41 static struct fmevt_outbound_stats {
42 	fmd_stat_t recv_calls;
43 	fmd_stat_t recv_list;
44 	fmd_stat_t recv_ireport;
45 	fmd_stat_t recv_other;
46 	fmd_stat_t fwd_success;
47 	fmd_stat_t fwd_failure;
48 } outbound_stats = {
49 	{ "outbound_recv_calls", FMD_TYPE_UINT64,
50 	    "total events received for forwarding" },
51 	{ "outbound_cat1class_list", FMD_TYPE_UINT64,
52 	    "events received matching list.*" },
53 	{ "outbound_cat1class_ireport", FMD_TYPE_UINT64,
54 	    "events received matching ireport.*" },
55 	{ "outbound_cat1class_other", FMD_TYPE_UINT64,
56 	    "events of other classes" },
57 	{ "outbound_fwd_success", FMD_TYPE_UINT64,
58 	    "events forwarded successfully" },
59 	{ "outbound_fwd_failure", FMD_TYPE_UINT64,
60 	    "events we failed to forward" }
61 };
62 
63 #define	BUMPSTAT(stat)	outbound_stats.stat.fmds_value.ui64++
64 
65 /*
66  * In the .conf file we subscribe to list.* and ireport.* event classes.
67  * Any additions to that set could cause some unexpected behaviour.
68  * For example adding fault.foo won't work (since we don't publish
69  * faults directly but only within a list.suspect) but we will get
70  * any list.* including fault.foo as a suspect.
71  */
72 /*ARGSUSED*/
73 void
fmevt_recv(fmd_hdl_t * hdl,fmd_event_t * ep,nvlist_t * nvl,const char * class)74 fmevt_recv(fmd_hdl_t *hdl, fmd_event_t *ep, nvlist_t *nvl, const char *class)
75 {
76 	BUMPSTAT(recv_calls);
77 
78 	if (strncmp(class, "list.", 5) == 0)
79 		BUMPSTAT(recv_list);
80 	else if (strncmp(class, "ireport.", 8) == 0)
81 		BUMPSTAT(recv_ireport);
82 	else
83 		BUMPSTAT(recv_other);
84 
85 	if (sysevent_evc_publish(fmevt_outbound_chan, class, "",
86 	    SUNW_VENDOR, FM_PUB, nvl, EVCH_SLEEP) == 0) {
87 		BUMPSTAT(fwd_success);
88 	} else {
89 		BUMPSTAT(fwd_failure);
90 		fmd_hdl_debug(hdl, "sysevent_evc_publish failed:");
91 	}
92 }
93 
94 void
fmevt_init_outbound(fmd_hdl_t * hdl)95 fmevt_init_outbound(fmd_hdl_t *hdl)
96 {
97 	int32_t channel_depth;
98 	char *channel_name;
99 	nvlist_t *nvl;
100 
101 	if (fmd_prop_get_int32(hdl, "protocol_forward_disable") == B_TRUE) {
102 		fmd_hdl_debug(hdl, "protocol forwarding disabled "
103 		    "through .conf file setting\n");
104 		return;
105 	}
106 
107 	(void) fmd_stat_create(hdl, FMD_STAT_NOALLOC, sizeof (outbound_stats) /
108 	    sizeof (fmd_stat_t), (fmd_stat_t *)&outbound_stats);
109 
110 	/*
111 	 * Allow simulation environment to change outbound channel name.
112 	 */
113 	channel_name = fmd_prop_get_string(hdl, "outbound_channel");
114 
115 	if (sysevent_evc_bind(channel_name, &fmevt_outbound_chan,
116 	    EVCH_CREAT | EVCH_HOLD_PEND_INDEF) != 0) {
117 		fmd_hdl_abort(hdl, "Unable to bind channel %s",
118 		    channel_name);
119 	}
120 
121 	channel_depth = fmd_prop_get_int32(hdl, "outbound_channel_depth");
122 
123 	if (sysevent_evc_control(fmevt_outbound_chan, EVCH_SET_CHAN_LEN,
124 	    (uint32_t)channel_depth) != 0) {
125 		fmd_hdl_abort(hdl, "Unable to set depth of channel %s to %d",
126 		    channel_name, channel_depth);
127 	}
128 	fmd_prop_free_string(hdl, channel_name);
129 
130 	nvl = fmd_nvl_alloc(hdl, FMD_SLEEP);
131 	(void) nvlist_add_nvlist(nvl, "fmdauth",
132 	    (nvlist_t *)fmd_hdl_fmauth(hdl));
133 	(void) sysevent_evc_setpropnvl(fmevt_outbound_chan, nvl);
134 	nvlist_free(nvl);
135 
136 }
137 
138 /*ARGSUSED*/
139 void
fmevt_fini_outbound(fmd_hdl_t * hdl)140 fmevt_fini_outbound(fmd_hdl_t *hdl)
141 {
142 	if (fmevt_outbound_chan != NULL) {
143 		(void) sysevent_evc_unbind(fmevt_outbound_chan);
144 		fmevt_outbound_chan = NULL;
145 	}
146 }
147