1/*-
2 * Copyright (c) 2011, 2012, 2013 Spectra Logic Corporation
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions, and the following disclaimer,
10 *    without modification.
11 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
12 *    substantially similar to the "NO WARRANTY" disclaimer below
13 *    ("Disclaimer") and any redistribution must be conditioned upon
14 *    including a substantially similar Disclaimer requirement for further
15 *    binary redistribution.
16 *
17 * NO WARRANTY
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
26 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
27 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28 * POSSIBILITY OF SUCH DAMAGES.
29 *
30 * Authors: Justin T. Gibbs     (Spectra Logic Corporation)
31 *
32 * $FreeBSD$
33 */
34
35/**
36 * \file zpool_list.cc
37 *
38 * Implementation of the ZpoolList class.
39 */
40#include <sys/cdefs.h>
41#include <sys/fs/zfs.h>
42
43#include <stdint.h>
44
45#include <libzfs.h>
46
47#include <list>
48#include <map>
49#include <string>
50
51#include <devdctl/guid.h>
52#include <devdctl/event.h>
53#include <devdctl/event_factory.h>
54#include <devdctl/exception.h>
55#include <devdctl/consumer.h>
56
57#include "vdev.h"
58#include "vdev_iterator.h"
59#include "zpool_list.h"
60#include "zfsd.h"
61
62/*============================ Namespace Control =============================*/
63using DevdCtl::Guid;
64
65/*=========================== Class Implementations ==========================*/
66/*--------------------------------- ZpoolList --------------------------------*/
67bool
68ZpoolList::ZpoolAll(zpool_handle_t *pool, nvlist_t *poolConfig, void *cbArg)
69{
70	return (true);
71}
72
73bool
74ZpoolList::ZpoolByGUID(zpool_handle_t *pool, nvlist_t *poolConfig,
75			   void *cbArg)
76{
77	Guid *desiredPoolGUID(static_cast<Guid *>(cbArg));
78	uint64_t poolGUID;
79
80	/* We are only intested in the pool that matches our pool GUID. */
81	return (nvlist_lookup_uint64(poolConfig, ZPOOL_CONFIG_POOL_GUID,
82				     &poolGUID) == 0
83	     && poolGUID == (uint64_t)*desiredPoolGUID);
84}
85
86bool
87ZpoolList::ZpoolByName(zpool_handle_t *pool, nvlist_t *poolConfig, void *cbArg)
88{
89	const string &desiredPoolName(*static_cast<const string *>(cbArg));
90
91	/* We are only intested in the pool that matches our pool GUID. */
92	return (desiredPoolName == zpool_get_name(pool));
93}
94
95int
96ZpoolList::LoadIterator(zpool_handle_t *pool, void *data)
97{
98	ZpoolList *zpl(reinterpret_cast<ZpoolList *>(data));
99	nvlist_t  *poolConfig(zpool_get_config(pool, NULL));
100
101	if (zpl->m_filter(pool, poolConfig, zpl->m_filterArg))
102		zpl->push_back(pool);
103	else
104		zpool_close(pool);
105	return (0);
106}
107
108ZpoolList::ZpoolList(PoolFilter_t *filter, void * filterArg)
109 : m_filter(filter),
110   m_filterArg(filterArg)
111{
112	zpool_iter(g_zfsHandle, LoadIterator, this);
113}
114
115ZpoolList::~ZpoolList()
116{
117	for (iterator it(begin()); it != end(); it++)
118		zpool_close(*it);
119
120	clear();
121}
122