xref: /illumos-gate/usr/src/cmd/availdevs/availdevs.c (revision dc307942eac821bc70a7a69cbb1ddec4184607c1)
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, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #pragma ident	"%Z%%M%	%I%	%E% SMI"
28 
29 #include "availdevs.h"
30 #include <libzfs_jni_diskmgt.h>
31 #include <libzfs_jni_ipool.h>
32 #include <libxml/parser.h>
33 
34 /*
35  * Function prototypes
36  */
37 
38 static void handle_error(const char *, va_list);
39 static int add_disk_to_xml(dmgt_disk_t *, void *);
40 static int add_pool_to_xml(char *, uint64_t, uint64_t, char *, void *);
41 static xmlDocPtr create_doc();
42 int main();
43 
44 /*
45  * Static functions
46  */
47 
48 static void
49 handle_error(const char *fmt, va_list ap)
50 {
51 	(void) vfprintf(stderr, fmt, ap);
52 	(void) fprintf(stderr, "\n");
53 }
54 
55 static int
56 add_disk_to_xml(dmgt_disk_t *dp, void *data)
57 {
58 	int i;
59 	char tmp[64];
60 	xmlNodePtr available = *((xmlNodePtr *)data);
61 
62 	xmlNodePtr disk = xmlNewChild(
63 	    available, NULL, (xmlChar *)ELEMENT_DISK, NULL);
64 	xmlSetProp(disk,
65 	    (xmlChar *)ATTR_DISK_NAME, (xmlChar *)dp->name);
66 	(void) snprintf(tmp, sizeof (tmp), "%llu", dp->size);
67 	xmlSetProp(disk, (xmlChar *)ATTR_DISK_SIZE, (xmlChar *)tmp);
68 
69 	xmlSetProp(disk, (xmlChar *)ATTR_DISK_INUSE, (xmlChar *)
70 	    (dp->in_use ? VAL_ATTR_TRUE : VAL_ATTR_FALSE));
71 
72 	if (dp->aliases != NULL) {
73 		for (i = 0; dp->aliases[i] != NULL; i++) {
74 			xmlNodePtr alias = xmlNewChild(
75 			    disk, NULL, (xmlChar *)ELEMENT_ALIAS, NULL);
76 			xmlSetProp(alias,
77 			    (xmlChar *)ATTR_ALIAS_NAME,
78 			    (xmlChar *)dp->aliases[i]);
79 		}
80 	}
81 
82 	if (dp->slices != NULL) {
83 		for (i = 0; dp->slices[i] != NULL; i++) {
84 			dmgt_slice_t *sp = dp->slices[i];
85 			xmlNodePtr slice = xmlNewChild(
86 			    disk, NULL, (xmlChar *)ELEMENT_SLICE, NULL);
87 			xmlSetProp(slice,
88 			    (xmlChar *)ATTR_SLICE_NAME, (xmlChar *)sp->name);
89 
90 			(void) snprintf(tmp, sizeof (tmp), "%llu", sp->size);
91 			xmlSetProp(slice, (xmlChar *)ATTR_SLICE_SIZE,
92 			    (xmlChar *)tmp);
93 
94 			(void) snprintf(tmp, sizeof (tmp), "%llu", sp->start);
95 			xmlSetProp(slice, (xmlChar *)ATTR_SLICE_START,
96 			    (xmlChar *)tmp);
97 
98 			if (sp->used_name != NULL) {
99 				xmlSetProp(slice,
100 				    (xmlChar *)ATTR_SLICE_USED_NAME,
101 				    (xmlChar *)sp->used_name);
102 			}
103 
104 			if (sp->used_by != NULL) {
105 				xmlSetProp(slice, (xmlChar *)ATTR_SLICE_USED_BY,
106 				    (xmlChar *)sp->used_by);
107 			}
108 		}
109 	}
110 
111 	return (0);
112 }
113 
114 static int
115 add_pool_to_xml(char *name, uint64_t guid,
116     uint64_t pool_state, char *health, void *data)
117 {
118 	char *state;
119 	char tmp[64];
120 	xmlNodePtr importable = *((xmlNodePtr *)data);
121 
122 	xmlNodePtr pool = xmlNewChild(
123 	    importable, NULL, (xmlChar *)ELEMENT_POOL, NULL);
124 	xmlSetProp(pool, (xmlChar *)ATTR_POOL_NAME, (xmlChar *)name);
125 
126 	state = zjni_get_state_str(pool_state);
127 	if (state == NULL) {
128 		state = "";
129 	}
130 	xmlSetProp(pool, (xmlChar *)ATTR_POOL_STATE, (xmlChar *)state);
131 	xmlSetProp(pool, (xmlChar *)ATTR_POOL_HEALTH, (xmlChar *)health);
132 
133 	(void) snprintf(tmp, sizeof (tmp), "%llu", guid);
134 	xmlSetProp(pool, (xmlChar *)ATTR_POOL_ID, (xmlChar *)tmp);
135 
136 	return (0);
137 }
138 
139 static xmlDocPtr
140 create_doc(void)
141 {
142 	/* Create the XML document */
143 	xmlDocPtr doc = xmlNewDoc((xmlChar *)"1.0");
144 
145 	/* Create the root node */
146 	xmlNodePtr root = xmlNewDocNode(
147 	    doc, NULL, (xmlChar *)ELEMENT_ROOT, NULL);
148 	xmlAddChild((xmlNodePtr) doc, (xmlNodePtr)root);
149 
150 	return (doc);
151 }
152 
153 /*
154  * Main entry to availdisks.
155  *
156  * @return      0 on successful exit, non-zero otherwise
157  */
158 int
159 main(int argc, char **argv)
160 {
161 	int error = 0;
162 	int get_pools = 0;
163 	int get_devices = 0;
164 
165 	/* Examine first arg */
166 	int c = getopt(argc, argv, CLI_OPTSTRING);
167 	switch (c) {
168 		case CLI_ARG_ALL:
169 			get_devices = 1;
170 			get_pools = 1;
171 			break;
172 
173 		case CLI_ARG_DEVICES:
174 			get_devices = 1;
175 			break;
176 
177 		case CLI_ARG_POOLS:
178 			get_pools = 1;
179 			break;
180 
181 		default:
182 			return (1);
183 			break;
184 	}
185 
186 	argc -= optind;
187 	argv += optind;
188 
189 	if (get_pools || get_devices) {
190 		xmlDocPtr doc = create_doc();
191 		xmlNodePtr root = xmlDocGetRootElement(doc);
192 
193 		if (get_devices) {
194 			/* Create the available node */
195 			xmlNodePtr available = xmlNewChild(root, NULL,
196 			    (xmlChar *)ELEMENT_AVAILABLE, NULL);
197 
198 			/* libzfs_jni_diskmgt.o error handler */
199 			dmgt_set_error_handler(handle_error);
200 
201 			error = dmgt_avail_disk_iter(
202 			    add_disk_to_xml, &available);
203 		}
204 
205 		if (get_pools && !error) {
206 			/* Create the importable node */
207 			xmlNodePtr importable = xmlNewChild(root, NULL,
208 			    (xmlChar *)ELEMENT_IMPORTABLE, NULL);
209 
210 			error = zjni_ipool_iter(
211 			    argc, argv, add_pool_to_xml, &importable);
212 		}
213 
214 		if (!error) {
215 			/* Print out XML */
216 			xmlDocFormatDump(stdout, doc, 1);
217 		}
218 
219 		xmlFreeDoc(doc);
220 	}
221 
222 	return (error != 0);
223 }
224