DirectVolume.cpp revision 2dfe297ec47559dbe2297a72bea71cf515c03797
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 682dfe297ec47559dbe2297a72bea71cf515c03797Mike Lockwooddev_t DirectVolume::getShareDevice() { 692dfe297ec47559dbe2297a72bea71cf515c03797Mike Lockwood if (mPartIdx != -1) { 702dfe297ec47559dbe2297a72bea71cf515c03797Mike Lockwood return MKDEV(mDiskMajor, mPartIdx); 712dfe297ec47559dbe2297a72bea71cf515c03797Mike Lockwood } else { 722dfe297ec47559dbe2297a72bea71cf515c03797Mike Lockwood return MKDEV(mDiskMajor, mDiskMinor); 732dfe297ec47559dbe2297a72bea71cf515c03797Mike Lockwood } 742dfe297ec47559dbe2297a72bea71cf515c03797Mike Lockwood} 752dfe297ec47559dbe2297a72bea71cf515c03797Mike Lockwood 76a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehatvoid DirectVolume::handleVolumeShared() { 77a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat setState(Volume::State_Shared); 78a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat} 79a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 80a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehatvoid DirectVolume::handleVolumeUnshared() { 81a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat setState(Volume::State_Idle); 82a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat} 83a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 84ae10b91044bf76b40b77d81c169e48e0bbdf6d75San Mehatint DirectVolume::handleBlockEvent(NetlinkEvent *evt) { 85fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat const char *dp = evt->findParam("DEVPATH"); 86f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 87fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat PathCollection::iterator it; 88f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat for (it = mPaths->begin(); it != mPaths->end(); ++it) { 89f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat if (!strncmp(dp, *it, strlen(*it))) { 90fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat /* We can handle this disk */ 91fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat int action = evt->getAction(); 92fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat const char *devtype = evt->findParam("DEVTYPE"); 93fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat 94a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (action == NetlinkEvent::NlActionAdd) { 95a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat int major = atoi(evt->findParam("MAJOR")); 96a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat int minor = atoi(evt->findParam("MINOR")); 97a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat char nodepath[255]; 98a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 99a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat snprintf(nodepath, 100a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat sizeof(nodepath), "/dev/block/vold/%d:%d", 101a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat major, minor); 102a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (createDeviceNode(nodepath, major, minor)) { 10397ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Error making device node '%s' (%s)", nodepath, 104a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat strerror(errno)); 105a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 106a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (!strcmp(devtype, "disk")) { 107fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat handleDiskAdded(dp, evt); 108a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } else { 109fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat handlePartitionAdded(dp, evt); 110a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 111a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } else if (action == NetlinkEvent::NlActionRemove) { 112a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (!strcmp(devtype, "disk")) { 113a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat handleDiskRemoved(dp, evt); 114a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } else { 115fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat handlePartitionRemoved(dp, evt); 116a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 117a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } else if (action == NetlinkEvent::NlActionChange) { 118a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (!strcmp(devtype, "disk")) { 119a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat handleDiskChanged(dp, evt); 120a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } else { 121a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat handlePartitionChanged(dp, evt); 122a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 123a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } else { 12497ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGW("Ignoring non add/remove/change event"); 125f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat } 126fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat 127f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat return 0; 128f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat } 129f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat } 130f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat errno = ENODEV; 131f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat return -1; 132f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat} 133fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat 134ae10b91044bf76b40b77d81c169e48e0bbdf6d75San Mehatvoid DirectVolume::handleDiskAdded(const char *devpath, NetlinkEvent *evt) { 135da62e7c00259f6b98696cedb7d031f04951caef0Kenny Root mDiskMajor = atoi(evt->findParam("MAJOR")); 136da62e7c00259f6b98696cedb7d031f04951caef0Kenny Root mDiskMinor = atoi(evt->findParam("MINOR")); 1377b8f2db4b07deaaa2f6f5ffbee0386a394032b08San Mehat 1387b8f2db4b07deaaa2f6f5ffbee0386a394032b08San Mehat const char *tmp = evt->findParam("NPARTS"); 1397b8f2db4b07deaaa2f6f5ffbee0386a394032b08San Mehat if (tmp) { 1407b8f2db4b07deaaa2f6f5ffbee0386a394032b08San Mehat mDiskNumParts = atoi(tmp); 1417b8f2db4b07deaaa2f6f5ffbee0386a394032b08San Mehat } else { 14297ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGW("Kernel block uevent missing 'NPARTS'"); 1437b8f2db4b07deaaa2f6f5ffbee0386a394032b08San Mehat mDiskNumParts = 1; 1447b8f2db4b07deaaa2f6f5ffbee0386a394032b08San Mehat } 1457b8f2db4b07deaaa2f6f5ffbee0386a394032b08San Mehat 146a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat char msg[255]; 147fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat 148fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat int partmask = 0; 149fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat int i; 15059abc3c56b432089abfe868c04cdbc3b6d28aee2San Mehat for (i = 1; i <= mDiskNumParts; i++) { 151fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat partmask |= (1 << i); 152fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat } 153fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat mPendingPartMap = partmask; 154fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat 155fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat if (mDiskNumParts == 0) { 156a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat#ifdef PARTITION_DEBUG 15797ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGD("Dv::diskIns - No partitions - good to go son!"); 158a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat#endif 159fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat setState(Volume::State_Idle); 160fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat } else { 161a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat#ifdef PARTITION_DEBUG 16297ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGD("Dv::diskIns - waiting for %d partitions (mask 0x%x)", 163fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat mDiskNumParts, mPendingPartMap); 164a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat#endif 165fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat setState(Volume::State_Pending); 166fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat } 167a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 168a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat snprintf(msg, sizeof(msg), "Volume %s %s disk inserted (%d:%d)", 169a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat getLabel(), getMountpoint(), mDiskMajor, mDiskMinor); 170a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat mVm->getBroadcaster()->sendBroadcast(ResponseCode::VolumeDiskInserted, 171a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat msg, false); 172fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat} 173fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat 174ae10b91044bf76b40b77d81c169e48e0bbdf6d75San Mehatvoid DirectVolume::handlePartitionAdded(const char *devpath, NetlinkEvent *evt) { 175da62e7c00259f6b98696cedb7d031f04951caef0Kenny Root int major = atoi(evt->findParam("MAJOR")); 176da62e7c00259f6b98696cedb7d031f04951caef0Kenny Root int minor = atoi(evt->findParam("MINOR")); 1777b8f2db4b07deaaa2f6f5ffbee0386a394032b08San Mehat 1787b8f2db4b07deaaa2f6f5ffbee0386a394032b08San Mehat int part_num; 1797b8f2db4b07deaaa2f6f5ffbee0386a394032b08San Mehat 1807b8f2db4b07deaaa2f6f5ffbee0386a394032b08San Mehat const char *tmp = evt->findParam("PARTN"); 1817b8f2db4b07deaaa2f6f5ffbee0386a394032b08San Mehat 1827b8f2db4b07deaaa2f6f5ffbee0386a394032b08San Mehat if (tmp) { 1837b8f2db4b07deaaa2f6f5ffbee0386a394032b08San Mehat part_num = atoi(tmp); 1847b8f2db4b07deaaa2f6f5ffbee0386a394032b08San Mehat } else { 18597ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGW("Kernel block uevent missing 'PARTN'"); 1867b8f2db4b07deaaa2f6f5ffbee0386a394032b08San Mehat part_num = 1; 1877b8f2db4b07deaaa2f6f5ffbee0386a394032b08San Mehat } 18859abc3c56b432089abfe868c04cdbc3b6d28aee2San Mehat 1892a5b8ce09b8836a8463ef9beaaff865c36ca5e6aSan Mehat if (part_num > mDiskNumParts) { 1902a5b8ce09b8836a8463ef9beaaff865c36ca5e6aSan Mehat mDiskNumParts = part_num; 1912a5b8ce09b8836a8463ef9beaaff865c36ca5e6aSan Mehat } 1922a5b8ce09b8836a8463ef9beaaff865c36ca5e6aSan Mehat 193dd9b8e92aaf330b48ddb40a7380588ef92b53de6San Mehat if (major != mDiskMajor) { 19497ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Partition '%s' has a different major than its disk!", devpath); 195dd9b8e92aaf330b48ddb40a7380588ef92b53de6San Mehat return; 196dd9b8e92aaf330b48ddb40a7380588ef92b53de6San Mehat } 197a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat#ifdef PARTITION_DEBUG 19897ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGD("Dv:partAdd: part_num = %d, minor = %d\n", part_num, minor); 199a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat#endif 200dd9b8e92aaf330b48ddb40a7380588ef92b53de6San Mehat mPartMinors[part_num -1] = minor; 201dd9b8e92aaf330b48ddb40a7380588ef92b53de6San Mehat 20259abc3c56b432089abfe868c04cdbc3b6d28aee2San Mehat mPendingPartMap &= ~(1 << part_num); 20359abc3c56b432089abfe868c04cdbc3b6d28aee2San Mehat if (!mPendingPartMap) { 204a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat#ifdef PARTITION_DEBUG 20597ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGD("Dv:partAdd: Got all partitions - ready to rock!"); 206a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat#endif 2072a5b8ce09b8836a8463ef9beaaff865c36ca5e6aSan Mehat if (getState() != Volume::State_Formatting) { 2082a5b8ce09b8836a8463ef9beaaff865c36ca5e6aSan Mehat setState(Volume::State_Idle); 2092a5b8ce09b8836a8463ef9beaaff865c36ca5e6aSan Mehat } 21059abc3c56b432089abfe868c04cdbc3b6d28aee2San Mehat } else { 211a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat#ifdef PARTITION_DEBUG 21297ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGD("Dv:partAdd: pending mask now = 0x%x", mPendingPartMap); 213a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat#endif 214a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 215a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat} 216a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 217a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehatvoid DirectVolume::handleDiskChanged(const char *devpath, NetlinkEvent *evt) { 218da62e7c00259f6b98696cedb7d031f04951caef0Kenny Root int major = atoi(evt->findParam("MAJOR")); 219da62e7c00259f6b98696cedb7d031f04951caef0Kenny Root int minor = atoi(evt->findParam("MINOR")); 220a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 221a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if ((major != mDiskMajor) || (minor != mDiskMinor)) { 222a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return; 223a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 224a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 22597ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGI("Volume %s disk has changed", getLabel()); 2267b8f2db4b07deaaa2f6f5ffbee0386a394032b08San Mehat const char *tmp = evt->findParam("NPARTS"); 2277b8f2db4b07deaaa2f6f5ffbee0386a394032b08San Mehat if (tmp) { 2287b8f2db4b07deaaa2f6f5ffbee0386a394032b08San Mehat mDiskNumParts = atoi(tmp); 2297b8f2db4b07deaaa2f6f5ffbee0386a394032b08San Mehat } else { 23097ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGW("Kernel block uevent missing 'NPARTS'"); 2317b8f2db4b07deaaa2f6f5ffbee0386a394032b08San Mehat mDiskNumParts = 1; 2327b8f2db4b07deaaa2f6f5ffbee0386a394032b08San Mehat } 2337b8f2db4b07deaaa2f6f5ffbee0386a394032b08San Mehat 234a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat int partmask = 0; 235a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat int i; 236a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat for (i = 1; i <= mDiskNumParts; i++) { 237a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat partmask |= (1 << i); 238a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 239a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat mPendingPartMap = partmask; 240a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 2412a5b8ce09b8836a8463ef9beaaff865c36ca5e6aSan Mehat if (getState() != Volume::State_Formatting) { 2422a5b8ce09b8836a8463ef9beaaff865c36ca5e6aSan Mehat if (mDiskNumParts == 0) { 2432a5b8ce09b8836a8463ef9beaaff865c36ca5e6aSan Mehat setState(Volume::State_Idle); 2442a5b8ce09b8836a8463ef9beaaff865c36ca5e6aSan Mehat } else { 2452a5b8ce09b8836a8463ef9beaaff865c36ca5e6aSan Mehat setState(Volume::State_Pending); 2462a5b8ce09b8836a8463ef9beaaff865c36ca5e6aSan Mehat } 24759abc3c56b432089abfe868c04cdbc3b6d28aee2San Mehat } 248a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat} 249a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 250a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehatvoid DirectVolume::handlePartitionChanged(const char *devpath, NetlinkEvent *evt) { 251da62e7c00259f6b98696cedb7d031f04951caef0Kenny Root int major = atoi(evt->findParam("MAJOR")); 252da62e7c00259f6b98696cedb7d031f04951caef0Kenny Root int minor = atoi(evt->findParam("MINOR")); 25397ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGD("Volume %s %s partition %d:%d changed\n", getLabel(), getMountpoint(), major, minor); 254fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat} 255fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat 256ae10b91044bf76b40b77d81c169e48e0bbdf6d75San Mehatvoid DirectVolume::handleDiskRemoved(const char *devpath, NetlinkEvent *evt) { 257da62e7c00259f6b98696cedb7d031f04951caef0Kenny Root int major = atoi(evt->findParam("MAJOR")); 258da62e7c00259f6b98696cedb7d031f04951caef0Kenny Root int minor = atoi(evt->findParam("MINOR")); 259a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat char msg[255]; 260a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 26197ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGD("Volume %s %s disk %d:%d removed\n", getLabel(), getMountpoint(), major, minor); 262a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat snprintf(msg, sizeof(msg), "Volume %s %s disk removed (%d:%d)", 263a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat getLabel(), getMountpoint(), major, minor); 264a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat mVm->getBroadcaster()->sendBroadcast(ResponseCode::VolumeDiskRemoved, 265a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat msg, false); 266a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat setState(Volume::State_NoMedia); 267fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat} 268fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat 269ae10b91044bf76b40b77d81c169e48e0bbdf6d75San Mehatvoid DirectVolume::handlePartitionRemoved(const char *devpath, NetlinkEvent *evt) { 270da62e7c00259f6b98696cedb7d031f04951caef0Kenny Root int major = atoi(evt->findParam("MAJOR")); 271da62e7c00259f6b98696cedb7d031f04951caef0Kenny Root int minor = atoi(evt->findParam("MINOR")); 272a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat char msg[255]; 273a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 27497ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGD("Volume %s %s partition %d:%d removed\n", getLabel(), getMountpoint(), major, minor); 275a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 276a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat /* 277a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat * The framework doesn't need to get notified of 278a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat * partition removal unless it's mounted. Otherwise 279a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat * the removal notification will be sent on the Disk 280a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat * itself 281a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat */ 282a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (getState() != Volume::State_Mounted) { 283a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return; 284a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 285a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 286a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if ((dev_t) MKDEV(major, minor) == mCurrentlyMountedKdev) { 287a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat /* 288a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat * Yikes, our mounted partition is going away! 289a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat */ 290a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 291a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat snprintf(msg, sizeof(msg), "Volume %s %s bad removal (%d:%d)", 292a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat getLabel(), getMountpoint(), major, minor); 293a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat mVm->getBroadcaster()->sendBroadcast(ResponseCode::VolumeBadRemoval, 294a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat msg, false); 2951a06edaf4db4e9c520624bcc06e0e13ee470d90eSan Mehat 2961a06edaf4db4e9c520624bcc06e0e13ee470d90eSan Mehat if (mVm->cleanupAsec(this, true)) { 2971a06edaf4db4e9c520624bcc06e0e13ee470d90eSan Mehat SLOGE("Failed to cleanup ASEC - unmount will probably fail!"); 2981a06edaf4db4e9c520624bcc06e0e13ee470d90eSan Mehat } 2991a06edaf4db4e9c520624bcc06e0e13ee470d90eSan Mehat 3004ba8948dc16463053e21cda5744f519a555080d0San Mehat if (Volume::unmountVol(true)) { 30197ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Failed to unmount volume on bad removal (%s)", 302a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat strerror(errno)); 303a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat // XXX: At this point we're screwed for now 304a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } else { 30597ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGD("Crisis averted"); 306a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 307a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 308fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat} 30949e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat 310dd9b8e92aaf330b48ddb40a7380588ef92b53de6San Mehat/* 311a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat * Called from base to get a list of devicenodes for mounting 312dd9b8e92aaf330b48ddb40a7380588ef92b53de6San Mehat */ 313a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehatint DirectVolume::getDeviceNodes(dev_t *devs, int max) { 314dd9b8e92aaf330b48ddb40a7380588ef92b53de6San Mehat 315dd9b8e92aaf330b48ddb40a7380588ef92b53de6San Mehat if (mPartIdx == -1) { 316a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat // If the disk has no partitions, try the disk itself 317dd9b8e92aaf330b48ddb40a7380588ef92b53de6San Mehat if (!mDiskNumParts) { 318a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat devs[0] = MKDEV(mDiskMajor, mDiskMinor); 319a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return 1; 320dd9b8e92aaf330b48ddb40a7380588ef92b53de6San Mehat } 321dd9b8e92aaf330b48ddb40a7380588ef92b53de6San Mehat 322a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat int i; 323a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat for (i = 0; i < mDiskNumParts; i++) { 324a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (i == max) 325a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat break; 326a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat devs[i] = MKDEV(mDiskMajor, mPartMinors[i]); 327a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 328a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return mDiskNumParts; 329dd9b8e92aaf330b48ddb40a7380588ef92b53de6San Mehat } 330a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat devs[0] = MKDEV(mDiskMajor, mPartMinors[mPartIdx -1]); 331a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return 1; 33249e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat} 333