DirectVolume.cpp revision da62e7c00259f6b98696cedb7d031f04951caef0
1f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat/* 2f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat * Copyright (C) 2008 The Android Open Source Project 3f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat * 4f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat * Licensed under the Apache License, Version 2.0 (the "License"); 5f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat * you may not use this file except in compliance with the License. 6f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat * You may obtain a copy of the License at 7f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat * 8f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat * http://www.apache.org/licenses/LICENSE-2.0 9f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat * 10f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat * Unless required by applicable law or agreed to in writing, software 11f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat * distributed under the License is distributed on an "AS IS" BASIS, 12f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat * See the License for the specific language governing permissions and 14f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat * limitations under the License. 15f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat */ 16f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 17f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat#include <stdio.h> 18fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat#include <stdlib.h> 19f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat#include <string.h> 20fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat#include <errno.h> 21f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 22a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat#include <linux/kdev_t.h> 23a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 24a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat#define LOG_TAG "DirectVolume" 25f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 26f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat#include <cutils/log.h> 27fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat#include <sysutils/NetlinkEvent.h> 28f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 29ae10b91044bf76b40b77d81c169e48e0bbdf6d75San Mehat#include "DirectVolume.h" 30a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat#include "VolumeManager.h" 31a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat#include "ResponseCode.h" 32a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 33a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat// #define PARTITION_DEBUG 34f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 35a2677e4ad01f250b0765f04adf0acfa6627efc98San MehatDirectVolume::DirectVolume(VolumeManager *vm, const char *label, 36a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat const char *mount_point, int partIdx) : 37a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat Volume(vm, label, mount_point) { 38f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat mPartIdx = partIdx; 39a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 40f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat mPaths = new PathCollection(); 41dd9b8e92aaf330b48ddb40a7380588ef92b53de6San Mehat for (int i = 0; i < MAX_PARTITIONS; i++) 42dd9b8e92aaf330b48ddb40a7380588ef92b53de6San Mehat mPartMinors[i] = -1; 43a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat mPendingPartMap = 0; 44a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat mDiskMajor = -1; 45a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat mDiskMinor = -1; 46a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat mDiskNumParts = 0; 47a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 48a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat setState(Volume::State_NoMedia); 49f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat} 50f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 51ae10b91044bf76b40b77d81c169e48e0bbdf6d75San MehatDirectVolume::~DirectVolume() { 52f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat PathCollection::iterator it; 53f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 54f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat for (it = mPaths->begin(); it != mPaths->end(); ++it) 55f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat free(*it); 56f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat delete mPaths; 57f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat} 58f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 59ae10b91044bf76b40b77d81c169e48e0bbdf6d75San Mehatint DirectVolume::addPath(const char *path) { 60f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat mPaths->push_back(strdup(path)); 61f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat return 0; 62f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat} 63f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 64a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehatdev_t DirectVolume::getDiskDevice() { 65a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return MKDEV(mDiskMajor, mDiskMinor); 66a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat} 67a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 68a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehatvoid DirectVolume::handleVolumeShared() { 69a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat setState(Volume::State_Shared); 70a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat} 71a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 72a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehatvoid DirectVolume::handleVolumeUnshared() { 73a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat setState(Volume::State_Idle); 74a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat} 75a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 76ae10b91044bf76b40b77d81c169e48e0bbdf6d75San Mehatint DirectVolume::handleBlockEvent(NetlinkEvent *evt) { 77fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat const char *dp = evt->findParam("DEVPATH"); 78f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 79fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat PathCollection::iterator it; 80f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat for (it = mPaths->begin(); it != mPaths->end(); ++it) { 81f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat if (!strncmp(dp, *it, strlen(*it))) { 82fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat /* We can handle this disk */ 83fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat int action = evt->getAction(); 84fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat const char *devtype = evt->findParam("DEVTYPE"); 85fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat 86a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (action == NetlinkEvent::NlActionAdd) { 87a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat int major = atoi(evt->findParam("MAJOR")); 88a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat int minor = atoi(evt->findParam("MINOR")); 89a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat char nodepath[255]; 90a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 91a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat snprintf(nodepath, 92a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat sizeof(nodepath), "/dev/block/vold/%d:%d", 93a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat major, minor); 94a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (createDeviceNode(nodepath, major, minor)) { 95a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat LOGE("Error making device node '%s' (%s)", nodepath, 96a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat strerror(errno)); 97a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 98a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (!strcmp(devtype, "disk")) { 99fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat handleDiskAdded(dp, evt); 100a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } else { 101fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat handlePartitionAdded(dp, evt); 102a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 103a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } else if (action == NetlinkEvent::NlActionRemove) { 104a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (!strcmp(devtype, "disk")) { 105a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat handleDiskRemoved(dp, evt); 106a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } else { 107fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat handlePartitionRemoved(dp, evt); 108a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 109a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } else if (action == NetlinkEvent::NlActionChange) { 110a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (!strcmp(devtype, "disk")) { 111a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat handleDiskChanged(dp, evt); 112a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } else { 113a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat handlePartitionChanged(dp, evt); 114a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 115a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } else { 116a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat LOGW("Ignoring non add/remove/change event"); 117f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat } 118fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat 119f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat return 0; 120f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat } 121f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat } 122f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat errno = ENODEV; 123f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat return -1; 124f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat} 125fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat 126ae10b91044bf76b40b77d81c169e48e0bbdf6d75San Mehatvoid DirectVolume::handleDiskAdded(const char *devpath, NetlinkEvent *evt) { 127da62e7c00259f6b98696cedb7d031f04951caef0Kenny Root mDiskMajor = atoi(evt->findParam("MAJOR")); 128da62e7c00259f6b98696cedb7d031f04951caef0Kenny Root mDiskMinor = atoi(evt->findParam("MINOR")); 1297b8f2db4b07deaaa2f6f5ffbee0386a394032b08San Mehat 1307b8f2db4b07deaaa2f6f5ffbee0386a394032b08San Mehat const char *tmp = evt->findParam("NPARTS"); 1317b8f2db4b07deaaa2f6f5ffbee0386a394032b08San Mehat if (tmp) { 1327b8f2db4b07deaaa2f6f5ffbee0386a394032b08San Mehat mDiskNumParts = atoi(tmp); 1337b8f2db4b07deaaa2f6f5ffbee0386a394032b08San Mehat } else { 1347b8f2db4b07deaaa2f6f5ffbee0386a394032b08San Mehat LOGW("Kernel block uevent missing 'NPARTS'"); 1357b8f2db4b07deaaa2f6f5ffbee0386a394032b08San Mehat mDiskNumParts = 1; 1367b8f2db4b07deaaa2f6f5ffbee0386a394032b08San Mehat } 1377b8f2db4b07deaaa2f6f5ffbee0386a394032b08San Mehat 138a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat char msg[255]; 139fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat 140fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat int partmask = 0; 141fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat int i; 14259abc3c56b432089abfe868c04cdbc3b6d28aee2San Mehat for (i = 1; i <= mDiskNumParts; i++) { 143fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat partmask |= (1 << i); 144fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat } 145fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat mPendingPartMap = partmask; 146fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat 147fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat if (mDiskNumParts == 0) { 148a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat#ifdef PARTITION_DEBUG 149fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat LOGD("Dv::diskIns - No partitions - good to go son!"); 150a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat#endif 151fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat setState(Volume::State_Idle); 152fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat } else { 153a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat#ifdef PARTITION_DEBUG 154fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat LOGD("Dv::diskIns - waiting for %d partitions (mask 0x%x)", 155fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat mDiskNumParts, mPendingPartMap); 156a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat#endif 157fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat setState(Volume::State_Pending); 158fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat } 159a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 160a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat snprintf(msg, sizeof(msg), "Volume %s %s disk inserted (%d:%d)", 161a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat getLabel(), getMountpoint(), mDiskMajor, mDiskMinor); 162a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat mVm->getBroadcaster()->sendBroadcast(ResponseCode::VolumeDiskInserted, 163a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat msg, false); 164fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat} 165fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat 166ae10b91044bf76b40b77d81c169e48e0bbdf6d75San Mehatvoid DirectVolume::handlePartitionAdded(const char *devpath, NetlinkEvent *evt) { 167da62e7c00259f6b98696cedb7d031f04951caef0Kenny Root int major = atoi(evt->findParam("MAJOR")); 168da62e7c00259f6b98696cedb7d031f04951caef0Kenny Root int minor = atoi(evt->findParam("MINOR")); 1697b8f2db4b07deaaa2f6f5ffbee0386a394032b08San Mehat 1707b8f2db4b07deaaa2f6f5ffbee0386a394032b08San Mehat int part_num; 1717b8f2db4b07deaaa2f6f5ffbee0386a394032b08San Mehat 1727b8f2db4b07deaaa2f6f5ffbee0386a394032b08San Mehat const char *tmp = evt->findParam("PARTN"); 1737b8f2db4b07deaaa2f6f5ffbee0386a394032b08San Mehat 1747b8f2db4b07deaaa2f6f5ffbee0386a394032b08San Mehat if (tmp) { 1757b8f2db4b07deaaa2f6f5ffbee0386a394032b08San Mehat part_num = atoi(tmp); 1767b8f2db4b07deaaa2f6f5ffbee0386a394032b08San Mehat } else { 1777b8f2db4b07deaaa2f6f5ffbee0386a394032b08San Mehat LOGW("Kernel block uevent missing 'PARTN'"); 1787b8f2db4b07deaaa2f6f5ffbee0386a394032b08San Mehat part_num = 1; 1797b8f2db4b07deaaa2f6f5ffbee0386a394032b08San Mehat } 18059abc3c56b432089abfe868c04cdbc3b6d28aee2San Mehat 1812a5b8ce09b8836a8463ef9beaaff865c36ca5e6aSan Mehat if (part_num > mDiskNumParts) { 1822a5b8ce09b8836a8463ef9beaaff865c36ca5e6aSan Mehat mDiskNumParts = part_num; 1832a5b8ce09b8836a8463ef9beaaff865c36ca5e6aSan Mehat } 1842a5b8ce09b8836a8463ef9beaaff865c36ca5e6aSan Mehat 185dd9b8e92aaf330b48ddb40a7380588ef92b53de6San Mehat if (major != mDiskMajor) { 186dd9b8e92aaf330b48ddb40a7380588ef92b53de6San Mehat LOGE("Partition '%s' has a different major than its disk!", devpath); 187dd9b8e92aaf330b48ddb40a7380588ef92b53de6San Mehat return; 188dd9b8e92aaf330b48ddb40a7380588ef92b53de6San Mehat } 189a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat#ifdef PARTITION_DEBUG 190a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat LOGD("Dv:partAdd: part_num = %d, minor = %d\n", part_num, minor); 191a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat#endif 192dd9b8e92aaf330b48ddb40a7380588ef92b53de6San Mehat mPartMinors[part_num -1] = minor; 193dd9b8e92aaf330b48ddb40a7380588ef92b53de6San Mehat 19459abc3c56b432089abfe868c04cdbc3b6d28aee2San Mehat mPendingPartMap &= ~(1 << part_num); 19559abc3c56b432089abfe868c04cdbc3b6d28aee2San Mehat if (!mPendingPartMap) { 196a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat#ifdef PARTITION_DEBUG 19759abc3c56b432089abfe868c04cdbc3b6d28aee2San Mehat LOGD("Dv:partAdd: Got all partitions - ready to rock!"); 198a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat#endif 1992a5b8ce09b8836a8463ef9beaaff865c36ca5e6aSan Mehat if (getState() != Volume::State_Formatting) { 2002a5b8ce09b8836a8463ef9beaaff865c36ca5e6aSan Mehat setState(Volume::State_Idle); 2012a5b8ce09b8836a8463ef9beaaff865c36ca5e6aSan Mehat } 20259abc3c56b432089abfe868c04cdbc3b6d28aee2San Mehat } else { 203a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat#ifdef PARTITION_DEBUG 20459abc3c56b432089abfe868c04cdbc3b6d28aee2San Mehat LOGD("Dv:partAdd: pending mask now = 0x%x", mPendingPartMap); 205a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat#endif 206a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 207a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat} 208a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 209a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehatvoid DirectVolume::handleDiskChanged(const char *devpath, NetlinkEvent *evt) { 210da62e7c00259f6b98696cedb7d031f04951caef0Kenny Root int major = atoi(evt->findParam("MAJOR")); 211da62e7c00259f6b98696cedb7d031f04951caef0Kenny Root int minor = atoi(evt->findParam("MINOR")); 212a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 213a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if ((major != mDiskMajor) || (minor != mDiskMinor)) { 214a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return; 215a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 216a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 217a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat LOGI("Volume %s disk has changed", getLabel()); 2187b8f2db4b07deaaa2f6f5ffbee0386a394032b08San Mehat const char *tmp = evt->findParam("NPARTS"); 2197b8f2db4b07deaaa2f6f5ffbee0386a394032b08San Mehat if (tmp) { 2207b8f2db4b07deaaa2f6f5ffbee0386a394032b08San Mehat mDiskNumParts = atoi(tmp); 2217b8f2db4b07deaaa2f6f5ffbee0386a394032b08San Mehat } else { 2227b8f2db4b07deaaa2f6f5ffbee0386a394032b08San Mehat LOGW("Kernel block uevent missing 'NPARTS'"); 2237b8f2db4b07deaaa2f6f5ffbee0386a394032b08San Mehat mDiskNumParts = 1; 2247b8f2db4b07deaaa2f6f5ffbee0386a394032b08San Mehat } 2257b8f2db4b07deaaa2f6f5ffbee0386a394032b08San Mehat 226a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat int partmask = 0; 227a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat int i; 228a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat for (i = 1; i <= mDiskNumParts; i++) { 229a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat partmask |= (1 << i); 230a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 231a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat mPendingPartMap = partmask; 232a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 2332a5b8ce09b8836a8463ef9beaaff865c36ca5e6aSan Mehat if (getState() != Volume::State_Formatting) { 2342a5b8ce09b8836a8463ef9beaaff865c36ca5e6aSan Mehat if (mDiskNumParts == 0) { 2352a5b8ce09b8836a8463ef9beaaff865c36ca5e6aSan Mehat setState(Volume::State_Idle); 2362a5b8ce09b8836a8463ef9beaaff865c36ca5e6aSan Mehat } else { 2372a5b8ce09b8836a8463ef9beaaff865c36ca5e6aSan Mehat setState(Volume::State_Pending); 2382a5b8ce09b8836a8463ef9beaaff865c36ca5e6aSan Mehat } 23959abc3c56b432089abfe868c04cdbc3b6d28aee2San Mehat } 240a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat} 241a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 242a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehatvoid DirectVolume::handlePartitionChanged(const char *devpath, NetlinkEvent *evt) { 243da62e7c00259f6b98696cedb7d031f04951caef0Kenny Root int major = atoi(evt->findParam("MAJOR")); 244da62e7c00259f6b98696cedb7d031f04951caef0Kenny Root int minor = atoi(evt->findParam("MINOR")); 2452a5b8ce09b8836a8463ef9beaaff865c36ca5e6aSan Mehat LOGD("Volume %s %s partition %d:%d changed\n", getLabel(), getMountpoint(), major, minor); 246fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat} 247fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat 248ae10b91044bf76b40b77d81c169e48e0bbdf6d75San Mehatvoid DirectVolume::handleDiskRemoved(const char *devpath, NetlinkEvent *evt) { 249da62e7c00259f6b98696cedb7d031f04951caef0Kenny Root int major = atoi(evt->findParam("MAJOR")); 250da62e7c00259f6b98696cedb7d031f04951caef0Kenny Root int minor = atoi(evt->findParam("MINOR")); 251a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat char msg[255]; 252a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 253a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat LOGD("Volume %s %s disk %d:%d removed\n", getLabel(), getMountpoint(), major, minor); 254a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat snprintf(msg, sizeof(msg), "Volume %s %s disk removed (%d:%d)", 255a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat getLabel(), getMountpoint(), major, minor); 256a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat mVm->getBroadcaster()->sendBroadcast(ResponseCode::VolumeDiskRemoved, 257a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat msg, false); 258a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat setState(Volume::State_NoMedia); 259fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat} 260fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat 261ae10b91044bf76b40b77d81c169e48e0bbdf6d75San Mehatvoid DirectVolume::handlePartitionRemoved(const char *devpath, NetlinkEvent *evt) { 262da62e7c00259f6b98696cedb7d031f04951caef0Kenny Root int major = atoi(evt->findParam("MAJOR")); 263da62e7c00259f6b98696cedb7d031f04951caef0Kenny Root int minor = atoi(evt->findParam("MINOR")); 264a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat char msg[255]; 265a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 266a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat LOGD("Volume %s %s partition %d:%d removed\n", getLabel(), getMountpoint(), major, minor); 267a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 268a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat /* 269a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat * The framework doesn't need to get notified of 270a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat * partition removal unless it's mounted. Otherwise 271a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat * the removal notification will be sent on the Disk 272a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat * itself 273a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat */ 274a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (getState() != Volume::State_Mounted) { 275a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return; 276a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 277a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 278a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if ((dev_t) MKDEV(major, minor) == mCurrentlyMountedKdev) { 279a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat /* 280a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat * Yikes, our mounted partition is going away! 281a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat */ 282a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 283a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat snprintf(msg, sizeof(msg), "Volume %s %s bad removal (%d:%d)", 284a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat getLabel(), getMountpoint(), major, minor); 285a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat mVm->getBroadcaster()->sendBroadcast(ResponseCode::VolumeBadRemoval, 286a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat msg, false); 2874ba8948dc16463053e21cda5744f519a555080d0San Mehat if (Volume::unmountVol(true)) { 288a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat LOGE("Failed to unmount volume on bad removal (%s)", 289a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat strerror(errno)); 290a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat // XXX: At this point we're screwed for now 291a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } else { 292a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat LOGD("Crisis averted"); 293a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 294a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 295fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat} 29649e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat 297dd9b8e92aaf330b48ddb40a7380588ef92b53de6San Mehat/* 298a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat * Called from base to get a list of devicenodes for mounting 299dd9b8e92aaf330b48ddb40a7380588ef92b53de6San Mehat */ 300a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehatint DirectVolume::getDeviceNodes(dev_t *devs, int max) { 301dd9b8e92aaf330b48ddb40a7380588ef92b53de6San Mehat 302dd9b8e92aaf330b48ddb40a7380588ef92b53de6San Mehat if (mPartIdx == -1) { 303a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat // If the disk has no partitions, try the disk itself 304dd9b8e92aaf330b48ddb40a7380588ef92b53de6San Mehat if (!mDiskNumParts) { 305a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat devs[0] = MKDEV(mDiskMajor, mDiskMinor); 306a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return 1; 307dd9b8e92aaf330b48ddb40a7380588ef92b53de6San Mehat } 308dd9b8e92aaf330b48ddb40a7380588ef92b53de6San Mehat 309a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat int i; 310a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat for (i = 0; i < mDiskNumParts; i++) { 311a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (i == max) 312a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat break; 313a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat devs[i] = MKDEV(mDiskMajor, mPartMinors[i]); 314a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 315a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return mDiskNumParts; 316dd9b8e92aaf330b48ddb40a7380588ef92b53de6San Mehat } 317a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat devs[0] = MKDEV(mDiskMajor, mPartMinors[mPartIdx -1]); 318a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return 1; 31949e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat} 320