cmd/availdevs/availdevs.c

	availdevs.c revision c8e9ed14d97e244b9753db14caf8481f181f5750
/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (the "License").  You may not use this file except in compliance
 * with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#pragma ident   "%Z%%M% %I% %E% SMI"

#include "availdevs.h"
#include <libzfs_jni_diskmgt.h>
#include <libzfs_jni_ipool.h>
#include <libxml/parser.h>

/*
 * Function prototypes
 */

static void handle_error(const char *, va_list);
static int add_disk_to_xml(dmgt_disk_t *, void *);
static int add_pool_to_xml(char *, uint64_t, uint64_t, char *, void *);
static xmlDocPtr create_doc();
int main();

/*
 * Static functions
 */

static void
handle_error(const char *fmt, va_list ap)
{
    (void) vfprintf(stderr, fmt, ap);
    (void) fprintf(stderr, "\n");
}

static int
add_disk_to_xml(dmgt_disk_t *dp, void *data)
{
    int i;
    char tmp[64];
    xmlNodePtr available = *((xmlNodePtr *)data);

    xmlNodePtr disk = xmlNewChild(
        available, NULL, (xmlChar *)ELEMENT_DISK, NULL);
    xmlSetProp(disk,
        (xmlChar *)ATTR_DISK_NAME, (xmlChar *)dp->name);
    snprintf(tmp, sizeof (tmp), "%llu", dp->size);
    xmlSetProp(disk, (xmlChar *)ATTR_DISK_SIZE, (xmlChar *)tmp);

    if (dp->aliases != NULL) {
        for (i = 0; dp->aliases[i] != NULL; i++) {
            xmlNodePtr alias = xmlNewChild(
                disk, NULL, (xmlChar *)ELEMENT_ALIAS, NULL);
            xmlSetProp(alias,
                (xmlChar *)ATTR_ALIAS_NAME,
                (xmlChar *)dp->aliases[i]);
        }
    }

    if (dp->slices != NULL) {
        for (i = 0; dp->slices[i] != NULL; i++) {
            dmgt_slice_t *sp = dp->slices[i];
            xmlNodePtr slice = xmlNewChild(
                disk, NULL, (xmlChar *)ELEMENT_SLICE, NULL);
            xmlSetProp(slice,
                (xmlChar *)ATTR_SLICE_NAME, (xmlChar *)sp->name);

            snprintf(tmp, sizeof (tmp), "%llu", sp->size);
            xmlSetProp(slice, (xmlChar *)ATTR_SLICE_SIZE,
                (xmlChar *)tmp);

            snprintf(tmp, sizeof (tmp), "%llu", sp->start);
            xmlSetProp(slice, (xmlChar *)ATTR_SLICE_START,
                (xmlChar *)tmp);

            if (sp->used_name != NULL) {
                xmlSetProp(slice,
                    (xmlChar *)ATTR_SLICE_USED_NAME,
                    (xmlChar *)sp->used_name);
            }

            if (sp->used_by != NULL) {
                xmlSetProp(slice, (xmlChar *)ATTR_SLICE_USED_BY,
                    (xmlChar *)sp->used_by);
            }
        }
    }

    return (0);
}

static int
add_pool_to_xml(char *name, uint64_t guid,
    uint64_t pool_state, char *health, void *data)
{
    char *state;
    char tmp[64];
    xmlNodePtr importable = *((xmlNodePtr *)data);

    xmlNodePtr pool = xmlNewChild(
        importable, NULL, (xmlChar *)ELEMENT_POOL, NULL);
    xmlSetProp(pool, (xmlChar *)ATTR_POOL_NAME, (xmlChar *)name);

    state = zjni_get_state_str(pool_state);
    if (state == NULL) {
        state = "";
    }
    xmlSetProp(pool, (xmlChar *)ATTR_POOL_STATE, (xmlChar *)state);
    xmlSetProp(pool, (xmlChar *)ATTR_POOL_HEALTH, (xmlChar *)health);

    snprintf(tmp, sizeof (tmp), "%llu", guid);
    xmlSetProp(pool, (xmlChar *)ATTR_POOL_ID, (xmlChar *)tmp);

    return (0);
}

static xmlDocPtr
create_doc(void)
{
    /* Create the XML document */
    xmlDocPtr doc = xmlNewDoc((xmlChar *)"1.0");

    /* Create the root node */
    xmlNodePtr root = xmlNewDocNode(
        doc, NULL, (xmlChar *)ELEMENT_ROOT, NULL);
    xmlAddChild((xmlNodePtr) doc, (xmlNodePtr)root);

    return (doc);
}

/*
 * Main entry to availdisks.
 *
 * @return      0 on successful exit, non-zero otherwise
 */
int
main(int argc, char **argv)
{
    int error = 0;
    int get_pools = 0;
    int get_devices = 0;

    /* Examine first arg */
    int c = getopt(argc, argv, CLI_OPTSTRING);
    switch (c) {
        case CLI_ARG_ALL:
            get_devices = 1;
            get_pools = 1;
            break;

        case CLI_ARG_DEVICES:
            get_devices = 1;
            break;

        case CLI_ARG_POOLS:
            get_pools = 1;
            break;

        default:
            return (1);
            break;
    }

    argc -= optind;
    argv += optind;

    if (get_pools || get_devices) {
        xmlDocPtr doc = create_doc();
        xmlNodePtr root = xmlDocGetRootElement(doc);

        if (get_devices) {
            /* Create the available node */
            xmlNodePtr available = xmlNewChild(root, NULL,
                (xmlChar *)ELEMENT_AVAILABLE, NULL);

            /* libzfs_jni_diskmgt.o error handler */
            dmgt_set_error_handler(handle_error);

            error = dmgt_avail_disk_iter(
                add_disk_to_xml, &available);
        }

        if (get_pools && !error) {
            /* Create the importable node */
            xmlNodePtr importable = xmlNewChild(root, NULL,
                (xmlChar *)ELEMENT_IMPORTABLE, NULL);

            error = zjni_ipool_iter(
                argc, argv, add_pool_to_xml, &importable);
        }

        if (!error) {
            /* Print out XML */
            xmlDocFormatDump(stdout, doc, 1);
        }

        xmlFreeDoc(doc);
    }

    return (error != 0);
}