ADB: Add adb backup for TWRP.
Functionality for client side to backup
tar and image streams over adbd to the client under backup.ab.
Using adb backup on the client side you can backup the partitions
TWRP knows about.
On the client side you can do the following:
adb backup -f <filename> --twrp <options> where options are
--compress: compress data
system: backup system
cache: backup cache
data: backup data
boot: backup boot
etc for each partition.
You can string multiple options,
i.e. adb backup -f <filename> --twrp --compress cache system data
adb backup in TWRP will take any option corresponding
to TWRP fstab partitions, e.g. efs boot as well.
If you do not specify the filename with the -f option,
adb will backup your data to a filename backup.ab on the client.
You can then rename the file and encrypt it with desktop tools.
If you don't want to use command line arguments:
adb backup --twrp
will bring up the gui and allow you to choose partitions
from the backup page.
To restore the backup use the following convention:
adb restore <filename>
Structures are used to store metadata in binary inside
of the file itself. If the metadata structure is modified,
update the adb version so that it will invalidate older
backups and not cause issues on restore. When restoring,
we currently do not support picking specific partitions.
It's all or nothing.
Change-Id: Idb92c37fc9801dc8d89ed2a4570e9d12e76facf8
diff --git a/adbbu/twrpback.hpp b/adbbu/twrpback.hpp
new file mode 100644
index 0000000..752d35e
--- /dev/null
+++ b/adbbu/twrpback.hpp
@@ -0,0 +1,49 @@
+/*
+ Copyright 2013 to 2016 TeamWin
+ TWRP is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ TWRP is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with TWRP. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <fstream>
+
+#include "../orscmd/orscmd.h"
+#include "../variables.h"
+#include "../twcommon.h"
+
+class twrpback {
+public:
+ int adbd_fd; // adbd data stream
+
+ twrpback(void);
+ virtual ~twrpback(void);
+ int backup(std::string command); // adb backup stream
+ int restore(void); // adb restore stream
+ void adblogwrite(std::string writemsg); // adb debugging log function
+ void close_backup_fds(); // close backup resources
+ void close_restore_fds(); // close restore resources
+
+private:
+ int read_fd; // ors input fd
+ int write_fd; // ors operation fd
+ int ors_fd; // ors output fd
+ int adb_control_twrp_fd; // fd for bu to twrp communication
+ int adb_control_bu_fd; // fd for twrp to bu communication
+ int adb_read_fd; // adb read data stream
+ int adb_write_fd; // adb write data stream
+ bool firstPart; // first partition in the stream
+ FILE *adbd_fp; // file pointer for adb stream
+ char cmd[512]; // store result of commands
+ char operation[512]; // operation to send to ors
+ std::ofstream adblogfile; // adb stream log file
+ void adbloginit(void); // setup adb log stream file
+};