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 33 /** 34 * \file zpool_list.cc 35 * 36 * Implementation of the ZpoolList class. 37 */ 38 #include <sys/cdefs.h> 39 #include <sys/byteorder.h> 40 #include <sys/fs/zfs.h> 41 42 #include <stdint.h> 43 44 #include <libzfs.h> 45 46 #include <list> 47 #include <map> 48 #include <string> 49 50 #include <devdctl/guid.h> 51 #include <devdctl/event.h> 52 #include <devdctl/event_factory.h> 53 #include <devdctl/exception.h> 54 #include <devdctl/consumer.h> 55 56 #include "vdev.h" 57 #include "vdev_iterator.h" 58 #include "zpool_list.h" 59 #include "zfsd.h" 60 61 /*============================ Namespace Control =============================*/ 62 using DevdCtl::Guid; 63 64 /*=========================== Class Implementations ==========================*/ 65 /*--------------------------------- ZpoolList --------------------------------*/ 66 bool 67 ZpoolList::ZpoolAll(zpool_handle_t *pool, nvlist_t *poolConfig, void *cbArg) 68 { 69 return (true); 70 } 71 72 bool 73 ZpoolList::ZpoolByGUID(zpool_handle_t *pool, nvlist_t *poolConfig, 74 void *cbArg) 75 { 76 Guid *desiredPoolGUID(static_cast<Guid *>(cbArg)); 77 uint64_t poolGUID; 78 79 /* We are only intested in the pool that matches our pool GUID. */ 80 return (nvlist_lookup_uint64(poolConfig, ZPOOL_CONFIG_POOL_GUID, 81 &poolGUID) == 0 82 && poolGUID == (uint64_t)*desiredPoolGUID); 83 } 84 85 bool 86 ZpoolList::ZpoolByName(zpool_handle_t *pool, nvlist_t *poolConfig, void *cbArg) 87 { 88 const string &desiredPoolName(*static_cast<const string *>(cbArg)); 89 90 /* We are only intested in the pool that matches our pool GUID. */ 91 return (desiredPoolName == zpool_get_name(pool)); 92 } 93 94 int 95 ZpoolList::LoadIterator(zpool_handle_t *pool, void *data) 96 { 97 ZpoolList *zpl(reinterpret_cast<ZpoolList *>(data)); 98 nvlist_t *poolConfig(zpool_get_config(pool, NULL)); 99 100 if (zpl->m_filter(pool, poolConfig, zpl->m_filterArg)) 101 zpl->push_back(pool); 102 else 103 zpool_close(pool); 104 return (0); 105 } 106 107 ZpoolList::ZpoolList(PoolFilter_t *filter, void * filterArg) 108 : m_filter(filter), 109 m_filterArg(filterArg) 110 { 111 zpool_iter(g_zfsHandle, LoadIterator, this); 112 } 113 114 ZpoolList::~ZpoolList() 115 { 116 for (iterator it(begin()); it != end(); it++) 117 zpool_close(*it); 118 119 clear(); 120 } 121