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/*
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 <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <string.h>
#include <fcntl.h>
#include <errno.h>
#include <zlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/select.h>
#include <sys/time.h>
#include <string>
#include <fstream>
#include <sstream>
#include "twadbstream.h"
#include "libtwadbbu.hpp"
bool twadbbu::Write_ADB_Stream_Header(uint64_t partition_count) {
struct AdbBackupStreamHeader twhdr;
int adb_control_bu_fd;
memset(&twhdr, 0, sizeof(twhdr));
adb_control_bu_fd = open(TW_ADB_BU_CONTROL, O_WRONLY | O_NONBLOCK);
if (adb_control_bu_fd < 0) {
printf("Cannot write to TW_ADB_BU_CONTROL.\n");
return false;
}
strncpy(twhdr.start_of_header, TWRP, sizeof(twhdr.start_of_header));
strncpy(twhdr.type, TWSTREAMHDR, sizeof(twhdr.type));
twhdr.partition_count = partition_count;
twhdr.version = ADB_BACKUP_VERSION;
memset(twhdr.space, 0, sizeof(twhdr.space));
twhdr.crc = crc32(0L, Z_NULL, 0);
twhdr.crc = crc32(twhdr.crc, (const unsigned char*) &twhdr, sizeof(twhdr));
if (write(adb_control_bu_fd, &twhdr, sizeof(twhdr)) < 0) {
printf("Cannot write to adb control channel\n");
close(adb_control_bu_fd);
return false;
}
return true;
}
bool twadbbu::Write_ADB_Stream_Trailer() {
int adb_control_bu_fd;
struct AdbBackupControlType endadb;
memset(&endadb, 0, sizeof(endadb));
adb_control_bu_fd = open(TW_ADB_BU_CONTROL, O_WRONLY);
if (adb_control_bu_fd < 0) {
printf("Error opening adb_control_bu_fd\n");
return false;
}
strncpy(endadb.start_of_header, TWRP, sizeof(endadb.start_of_header));
strncpy(endadb.type, TWENDADB, sizeof(endadb.type));
endadb.crc = crc32(0L, Z_NULL, 0);
endadb.crc = crc32(endadb.crc, (const unsigned char*) &endadb, sizeof(endadb));
if (write(adb_control_bu_fd, &endadb, sizeof(endadb)) < 0) {
printf("Cannot write to ADB control.\n");
close(adb_control_bu_fd);
return false;
}
close(adb_control_bu_fd);
return true;
}
bool twadbbu::Write_TWFN(std::string Backup_FileName, uint64_t file_size, bool use_compression) {
int adb_control_bu_fd;
adb_control_bu_fd = open(TW_ADB_BU_CONTROL, O_WRONLY | O_NONBLOCK);
struct twfilehdr twfilehdr;
strncpy(twfilehdr.start_of_header, TWRP, sizeof(twfilehdr.start_of_header));
strncpy(twfilehdr.type, TWFN, sizeof(twfilehdr.type));
strncpy(twfilehdr.name, Backup_FileName.c_str(), sizeof(twfilehdr.name));
twfilehdr.size = (file_size == 0 ? 1024 : file_size);
twfilehdr.compressed = use_compression;
twfilehdr.crc = crc32(0L, Z_NULL, 0);
twfilehdr.crc = crc32(twfilehdr.crc, (const unsigned char*) &twfilehdr, sizeof(twfilehdr));
printf("Sending TWFN to adb\n");
if (write(adb_control_bu_fd, &twfilehdr, sizeof(twfilehdr)) < 1) {
printf("Cannot that write to adb_control_bu_fd\n");
close(adb_control_bu_fd);
return false;
}
close(adb_control_bu_fd);
return true;
}
bool twadbbu::Write_TWIMG(std::string Backup_FileName, uint64_t file_size) {
int adb_control_bu_fd;
struct twfilehdr twimghdr;
adb_control_bu_fd = open(TW_ADB_BU_CONTROL, O_WRONLY | O_NONBLOCK);
strncpy(twimghdr.start_of_header, TWRP, sizeof(twimghdr.start_of_header));
strncpy(twimghdr.type, TWIMG, sizeof(twimghdr.type));
twimghdr.size = file_size;
strncpy(twimghdr.name, Backup_FileName.c_str(), sizeof(twimghdr.name));
twimghdr.crc = crc32(0L, Z_NULL, 0);
twimghdr.crc = crc32(twimghdr.crc, (const unsigned char*) &twimghdr, sizeof(twimghdr));
printf("Sending TWIMG to adb\n");
if (write(adb_control_bu_fd, &twimghdr, sizeof(twimghdr)) < 1) {
printf("Cannot write to adb control channel\n");
return false;
}
return true;
}
bool twadbbu::Write_TWEOF() {
struct AdbBackupControlType tweof;
int adb_control_bu_fd;
int errctr = 0;
printf("opening TW_ADB_BU_CONTROL\n");
adb_control_bu_fd = open(TW_ADB_BU_CONTROL, O_WRONLY | O_NONBLOCK);
while (adb_control_bu_fd < 0) {
printf("failed to open TW_ADB_BU_CONTROL. Retrying: %s\n", strerror(errno));
adb_control_bu_fd = open(TW_ADB_BU_CONTROL, O_WRONLY | O_NONBLOCK);
usleep(10000);
errctr++;
if (errctr > ADB_BU_MAX_ERROR) {
printf("Cannot write to adb_control_bu_fd: %s.\n", strerror(errno));
close(adb_control_bu_fd);
return false;
}
}
memset(&tweof, 0, sizeof(tweof));
strncpy(tweof.start_of_header, TWRP, sizeof(tweof.start_of_header));
strncpy(tweof.type, TWEOF, sizeof(tweof.type));
tweof.crc = crc32(0L, Z_NULL, 0);
tweof.crc = crc32(tweof.crc, (const unsigned char*) &tweof, sizeof(tweof));
printf("Sending TWEOF to adb backup\n");
if (write(adb_control_bu_fd, &tweof, sizeof(tweof)) < 0) {
printf("Cannot write to adb_control_bu_fd: %s.\n", strerror(errno));
close(adb_control_bu_fd);
return false;
}
close(adb_control_bu_fd);
return true;
}
bool twadbbu::Write_TWERROR() {
struct AdbBackupControlType twerror;
int adb_control_bu_fd = open(TW_ADB_BU_CONTROL, O_WRONLY | O_NONBLOCK);
strncpy(twerror.start_of_header, TWRP, sizeof(twerror.start_of_header));
strncpy(twerror.type, TWERROR, sizeof(twerror.type));
memset(twerror.space, 0, sizeof(twerror.space));
twerror.crc = crc32(0L, Z_NULL, 0);
twerror.crc = crc32(twerror.crc, (const unsigned char*) &twerror, sizeof(twerror));
if (write(adb_control_bu_fd, &twerror, sizeof(twerror)) < 0) {
printf("Cannot write to adb control channel");
return false;
}
close(adb_control_bu_fd);
return true;
}
bool twadbbu::Write_TWENDADB() {
struct AdbBackupControlType endadb;
int adb_control_bu_fd = open(TW_ADB_BU_CONTROL, O_WRONLY | O_NONBLOCK);
memset(&endadb, 0, sizeof(endadb));
strncpy(endadb.start_of_header, TWRP, sizeof(endadb.start_of_header));
strncpy(endadb.type, TWENDADB, sizeof(endadb.type));
endadb.crc = crc32(0L, Z_NULL, 0);
endadb.crc = crc32(endadb.crc, (const unsigned char*) &endadb, sizeof(endadb));
printf("Sending TWENDADB to ADB Backup\n");
if (write(adb_control_bu_fd, &endadb, sizeof(endadb)) < 1) {
printf("Cannot write to ADB_CONTROL_BU_FD: %s\n", strerror(errno));
return false;
}
close(adb_control_bu_fd);
return true;
}
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