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Add resize2fs and ability to run resize2fs via GUI

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Note: Only works on ext2/3/4 partitions. Only tested on ext4.

We can use this in some cases to resize the data partition if an
incorrect fstab caused recovery to not reserve the 16KB for a
crypto footer.

Sometimes the BoardConfig for a custom ROM does not have the
correct size for the system partition and if the ROM flashes a
raw system image, that image will not take up the full block
device. Running resize2fs can fix the size and may allow more
room in the system partition for customizations like busybox or
a larger gapps package.

Sometimes flashing a factory image may flash userdata with an
image with a file system that does not take up the full size of
the block device (e.g. factory images for the Nexus 6 will flash
userdata with a ~24GB userdata image, wasting ~30GB of space).
Using resize2fs we can easily fix this issue without having to do
a full format data.

Change-Id: I631f5c6f567bbc6a9241e5dd95f1e435820a1b13
This commit is contained in:
Ethan Yonker
2015-05-28 09:44:41 -05:00
parent eb32b1ff00
commit a2719156c2
9 changed files with 193 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files
gui/action.cpp
+27
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@@ -223,6 +223,7 @@ GUIAction::GUIAction(xml_node<>* node)
ADD_ACTION(installsu);
ADD_ACTION(decrypt_backup);
ADD_ACTION(repair);
ADD_ACTION(resize);
ADD_ACTION(changefilesystem);
ADD_ACTION(flashimage);
}
@@ -872,6 +873,10 @@ int GUIAction::getpartitiondetails(std::string arg)
DataManager::SetValue("tw_partition_can_repair", 1);
else
DataManager::SetValue("tw_partition_can_repair", 0);
if (Part->Can_Resize())
DataManager::SetValue("tw_partition_can_resize", 1);
else
DataManager::SetValue("tw_partition_can_resize", 0);
if (TWFunc::Path_Exists("/sbin/mkdosfs"))
DataManager::SetValue("tw_partition_vfat", 1);
else
@@ -1651,6 +1656,28 @@ int GUIAction::repair(std::string arg)
return 0;
}
int GUIAction::resize(std::string arg)
{
int op_status = 0;
operation_start("Resize Partition");
if (simulate) {
simulate_progress_bar();
} else {
string part_path;
DataManager::GetValue("tw_partition_mount_point", part_path);
if (PartitionManager.Resize_By_Path(part_path, true)) {
op_status = 0; // success
} else {
LOGERR("Error resizing file system.\n");
op_status = 1; // fail
}
}
operation_end(op_status);
return 0;
}
int GUIAction::changefilesystem(std::string arg)
{
int op_status = 0;
gui/devices/landscape/res/landscape.xml
+19
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@@ -1380,6 +1380,25 @@
<text>Backup Size: %tw_partition_backup_size%MB</text>
</object>
<object type="button">
<condition var1="tw_partition_can_resize" op="=" var2="1" />
<placement x="%col1_x%" y="%row2_y%" />
<text>Resize</text>
<actions>
<action function="set">tw_back=partitionoptions</action>
<action function="set">tw_action=resize</action>
<action function="set">tw_action_param=%tw_partition_mount_point%</action>
<action function="set">tw_has_action2=1</action>
<action function="set">tw_action2=getpartitiondetails</action>
<action function="set">tw_text1=Resize %tw_partition_name%?</action>
<action function="set">tw_text2=</action>
<action function="set">tw_action_text1=Resizing...</action>
<action function="set">tw_complete_text1=Resize Complete</action>
<action function="set">tw_slider_text=Swipe to Resize</action>
<action function="page">confirm_action</action>
</actions>
</object>
<object type="button">
<condition var1="tw_partition_can_repair" op="=" var2="1" />
<placement x="%col2_x%" y="%row2_y%" />
gui/devices/portrait/res/portrait.xml
+19
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@@ -1117,6 +1117,25 @@
<text>Backup Size: %tw_partition_backup_size%MB</text>
</object>
<object type="button">
<condition var1="tw_partition_can_resize" op="=" var2="1" />
<placement x="%col1_x%" y="%row3_y%" />
<text>Resize</text>
<actions>
<action function="set">tw_back=partitionoptions</action>
<action function="set">tw_action=resize</action>
<action function="set">tw_action_param=%tw_partition_mount_point%</action>
<action function="set">tw_has_action2=1</action>
<action function="set">tw_action2=getpartitiondetails</action>
<action function="set">tw_text1=Resize %tw_partition_name%?</action>
<action function="set">tw_text2=</action>
<action function="set">tw_action_text1=Resizing...</action>
<action function="set">tw_complete_text1=Resize Complete</action>
<action function="set">tw_slider_text=Swipe to Resize</action>
<action function="page">confirm_action</action>
</actions>
</object>
<object type="button">
<condition var1="tw_partition_can_repair" op="=" var2="1" />
<placement x="%col1_x%" y="%row4_y%" />
gui/devices/watch/res/watch.xml
+19
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@@ -1095,6 +1095,25 @@
<text>Backup Size: %tw_partition_backup_size%MB</text>
</object>
<object type="button">
<condition var1="tw_partition_can_resize" op="=" var2="1" />
<placement x="%col1_x%" y="%row3_y%" />
<text>Resize</text>
<actions>
<action function="set">tw_back=partitionoptions</action>
<action function="set">tw_action=resize</action>
<action function="set">tw_action_param=%tw_partition_mount_point%</action>
<action function="set">tw_has_action2=1</action>
<action function="set">tw_action2=getpartitiondetails</action>
<action function="set">tw_text1=Resize %tw_partition_name%?</action>
<action function="set">tw_text2=</action>
<action function="set">tw_action_text1=Resizing...</action>
<action function="set">tw_complete_text1=Resize Complete</action>
<action function="set">tw_slider_text=Swipe to Resize</action>
<action function="page">confirm_action</action>
</actions>
</object>
<object type="button">
<condition var1="tw_partition_can_repair" op="=" var2="1" />
<placement x="%col1_x%" y="%row4_y%" />
gui/objects.hpp
+1
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@@ -354,6 +354,7 @@ protected:
int fixsu(std::string arg);
int decrypt_backup(std::string arg);
int repair(std::string arg);
int resize(std::string arg);
int changefilesystem(std::string arg);
int startmtp(std::string arg);
int stopmtp(std::string arg);
partition.cpp
+75 -2
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@@ -534,7 +534,7 @@ bool TWPartition::Process_Flags(string Flags, bool Display_Error) {
}
} else if (ptr_len > 10 && strncmp(ptr, "blocksize=", 10) == 0) {
ptr += 10;
Format_Block_Size = atoi(ptr);
Format_Block_Size = (unsigned long)(atol(ptr));
} else if (ptr_len > 7 && strncmp(ptr, "length=", 7) == 0) {
ptr += 7;
Length = atoi(ptr);
@@ -1184,6 +1184,8 @@ bool TWPartition::Wipe_AndSec(void) {
}
bool TWPartition::Can_Repair() {
if (Mount_Read_Only)
return false;
if (Current_File_System == "vfat" && TWFunc::Path_Exists("/sbin/dosfsck"))
return true;
else if ((Current_File_System == "ext2" || Current_File_System == "ext3" || Current_File_System == "ext4") && TWFunc::Path_Exists("/sbin/e2fsck"))
@@ -1226,7 +1228,7 @@ bool TWPartition::Repair() {
return false;
gui_print("Repairing %s using e2fsck...\n", Display_Name.c_str());
Find_Actual_Block_Device();
command = "/sbin/e2fsck -p " + Actual_Block_Device;
command = "/sbin/e2fsck -fp " + Actual_Block_Device;
LOGINFO("Repair command: %s\n", command.c_str());
if (TWFunc::Exec_Cmd(command) == 0) {
gui_print("Done.\n");
@@ -1277,6 +1279,77 @@ bool TWPartition::Repair() {
return false;
}
bool TWPartition::Can_Resize() {
if (Mount_Read_Only)
return false;
if ((Current_File_System == "ext2" || Current_File_System == "ext3" || Current_File_System == "ext4") && TWFunc::Path_Exists("/sbin/resize2fs"))
return true;
return false;
}
bool TWPartition::Resize() {
string command;
if (Current_File_System == "ext2" || Current_File_System == "ext3" || Current_File_System == "ext4") {
if (!Can_Repair()) {
LOGERR("Cannot resize %s because %s cannot be repaired before resizing.\n", Display_Name.c_str(), Display_Name.c_str());
return false;
}
if (!TWFunc::Path_Exists("/sbin/resize2fs")) {
gui_print("resize2fs does not exist! Cannot resize!\n");
return false;
}
// Repair will unmount so no need to do it twice
gui_print("Repairing %s before resizing.\n", Display_Name.c_str());
if (!Repair())
return false;
gui_print("Resizing %s using resize2fs...\n", Display_Name.c_str());
Find_Actual_Block_Device();
command = "/sbin/resize2fs " + Actual_Block_Device;
if (Length != 0) {
unsigned int block_device_size;
int fd, ret;
fd = open(Actual_Block_Device.c_str(), O_RDONLY);
if (fd < 0) {
LOGERR("Resize: Failed to open '%s'\n", Actual_Block_Device.c_str());
return false;
}
ret = ioctl(fd, BLKGETSIZE, &block_device_size);
close(fd);
if (ret) {
LOGERR("Resize: ioctl error\n");
return false;
}
unsigned long long Actual_Size = (unsigned long long)(block_device_size) * 512LLU;
unsigned long long Block_Count;
if (Length < 0) {
// Reduce overall size by this length
Block_Count = (Actual_Size / 1024LLU) - ((unsigned long long)(Length * -1) / 1024LLU);
} else {
// This is the size, not a size reduction
Block_Count = ((unsigned long long)(Length) / 1024LLU);
}
char temp[256];
sprintf(temp, "%llu", Block_Count);
command += " ";
command += temp;
command += "K";
}
LOGINFO("Resize command: %s\n", command.c_str());
if (TWFunc::Exec_Cmd(command) == 0) {
Update_Size(true);
gui_print("Done.\n");
return true;
} else {
Update_Size(true);
LOGERR("Unable to resize '%s'.\n", Mount_Point.c_str());
return false;
}
}
return false;
}
bool TWPartition::Backup(string backup_folder, const unsigned long long *overall_size, const unsigned long long *other_backups_size, pid_t &tar_fork_pid) {
if (Backup_Method == FILES) {
return Backup_Tar(backup_folder, overall_size, other_backups_size, tar_fork_pid);
partitionmanager.cpp
+28
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@@ -1259,6 +1259,34 @@ int TWPartitionManager::Repair_By_Path(string Path, bool Display_Error) {
return false;
}
int TWPartitionManager::Resize_By_Path(string Path, bool Display_Error) {
std::vector<TWPartition*>::iterator iter;
int ret = false;
bool found = false;
string Local_Path = TWFunc::Get_Root_Path(Path);
if (Local_Path == "/tmp" || Local_Path == "/")
return true;
// Iterate through all partitions
for (iter = Partitions.begin(); iter != Partitions.end(); iter++) {
if ((*iter)->Mount_Point == Local_Path || (!(*iter)->Symlink_Mount_Point.empty() && (*iter)->Symlink_Mount_Point == Local_Path)) {
ret = (*iter)->Resize();
found = true;
} else if ((*iter)->Is_SubPartition && (*iter)->SubPartition_Of == Local_Path) {
(*iter)->Resize();
}
}
if (found) {
return ret;
} else if (Display_Error) {
LOGERR("Resize: Unable to find partition for path '%s'\n", Local_Path.c_str());
} else {
LOGINFO("Resize: Unable to find partition for path '%s'\n", Local_Path.c_str());
}
return false;
}
void TWPartitionManager::Update_System_Details(void) {
std::vector<TWPartition*>::iterator iter;
int data_size = 0;
partitions.hpp
+4 -1
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@@ -59,6 +59,8 @@ public:
bool Can_Repair(); // Checks to see if we have everything needed to be able to repair the current file system
uint64_t Get_Max_FileSize(); //get partition maxFileSie
bool Repair(); // Repairs the current file system
bool Can_Resize(); // Checks to see if we have everything needed to be able to resize the current file system
bool Resize(); // Resizes the current file system
bool Backup(string backup_folder, const unsigned long long *overall_size, const unsigned long long *other_backups_size, pid_t &tar_fork_pid); // Backs up the partition to the folder specified
bool Check_MD5(string restore_folder); // Checks MD5 of a backup
bool Restore(string restore_folder, const unsigned long long *total_restore_size, unsigned long long *already_restored_size); // Restores the partition using the backup folder provided
@@ -165,7 +167,7 @@ private:
string Fstab_File_System; // File system from the recovery.fstab
int Mount_Flags; // File system flags from recovery.fstab
string Mount_Options; // File system options from recovery.fstab
int Format_Block_Size; // Block size for formatting
unsigned long Format_Block_Size; // Block size for formatting
bool Ignore_Blkid; // Ignore blkid results due to superblocks lying to us on certain devices / partitions
bool Retain_Layout_Version; // Retains the .layout_version file during a wipe (needed on devices like Sony Xperia T where /data and /data/media are separate partitions)
bool Can_Flash_Img; // Indicates if this partition can have images flashed to it via the GUI
@@ -207,6 +209,7 @@ public:
int Format_Data(); // Really formats data on /data/media devices -- also removes encryption
int Wipe_Media_From_Data(); // Removes and recreates the media folder on /data/media devices
int Repair_By_Path(string Path, bool Display_Error); // Repairs a partition based on path
int Resize_By_Path(string Path, bool Display_Error); // Resizes a partition based on path
void Update_System_Details(); // Updates fstab, file systems, sizes, etc.
int Decrypt_Device(string Password); // Attempt to decrypt any encrypted partitions
int usb_storage_enable(void); // Enable USB storage mode
prebuilt/Android.mk
+1
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@@ -26,6 +26,7 @@ RELINK_SOURCE_FILES += $(TARGET_RECOVERY_ROOT_OUT)/sbin/mkdosfs
RELINK_SOURCE_FILES += $(TARGET_OUT_EXECUTABLES)/e2fsck
RELINK_SOURCE_FILES += $(TARGET_OUT_EXECUTABLES)/mke2fs
RELINK_SOURCE_FILES += $(TARGET_OUT_EXECUTABLES)/tune2fs
RELINK_SOURCE_FILES += $(TARGET_OUT_EXECUTABLES)/resize2fs
ifneq ($(TARGET_ARCH), x86_64)
RELINK_SOURCE_FILES += $(TARGET_OUT_EXECUTABLES)/linker
endif