4b94cfd391
Files and folders that we create during backups, copy log, or MTP operations often do not have the proper uid/gid/contexts assigned. We will attempt to read the proper contexts from the settings storage path and assign those same contexts to any files or dirs that we create. Change-Id: I769f9479854122b49b499de2175e6e2d026f8afd
149 lines
3.2 KiB
C++
149 lines
3.2 KiB
C++
/*
|
|
Copyright 2012 bigbiff/Dees_Troy TeamWin
|
|
This file is part of TWRP/TeamWin Recovery Project.
|
|
|
|
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/>.
|
|
*/
|
|
|
|
extern "C"
|
|
{
|
|
#include "digest/md5.h"
|
|
#include "gui/gui.h"
|
|
#include "libcrecovery/common.h"
|
|
}
|
|
|
|
#include <vector>
|
|
#include <string>
|
|
#include <sstream>
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include <sys/wait.h>
|
|
#include <string.h>
|
|
#include <libgen.h>
|
|
#include <errno.h>
|
|
#include <fcntl.h>
|
|
#include <fstream>
|
|
#include <sys/mman.h>
|
|
#include "twcommon.h"
|
|
#include "data.hpp"
|
|
#include "variables.h"
|
|
#include "twrp-functions.hpp"
|
|
#include "twrpDigest.hpp"
|
|
#include "set_metadata.h"
|
|
|
|
using namespace std;
|
|
|
|
void twrpDigest::setfn(string fn) {
|
|
md5fn = fn;
|
|
}
|
|
|
|
int twrpDigest::computeMD5(void) {
|
|
string line;
|
|
struct MD5Context md5c;
|
|
FILE *file;
|
|
int len;
|
|
unsigned char buf[1024];
|
|
MD5Init(&md5c);
|
|
file = fopen(md5fn.c_str(), "rb");
|
|
if (file == NULL)
|
|
return -1;
|
|
while ((len = fread(buf, 1, sizeof(buf), file)) > 0) {
|
|
MD5Update(&md5c, buf, len);
|
|
}
|
|
fclose(file);
|
|
MD5Final(md5sum, &md5c);
|
|
return 0;
|
|
}
|
|
|
|
int twrpDigest::write_md5digest(void) {
|
|
int i;
|
|
string md5string, md5file;
|
|
char hex[3];
|
|
md5file = md5fn + ".md5";
|
|
|
|
for (i = 0; i < 16; ++i) {
|
|
snprintf(hex, 3, "%02x", md5sum[i]);
|
|
md5string += hex;
|
|
}
|
|
md5string += " ";
|
|
md5string += basename((char*) md5fn.c_str());
|
|
md5string += + "\n";
|
|
TWFunc::write_file(md5file, md5string);
|
|
tw_set_default_metadata(md5file.c_str());
|
|
LOGINFO("MD5 for %s: %s\n", md5fn.c_str(), md5string.c_str());
|
|
return 0;
|
|
}
|
|
|
|
int twrpDigest::read_md5digest(void) {
|
|
int i = 0;
|
|
bool foundMd5File = false;
|
|
string md5file = "";
|
|
vector<string> md5ext;
|
|
md5ext.push_back(".md5");
|
|
md5ext.push_back(".md5sum");
|
|
|
|
while (i < md5ext.size()) {
|
|
md5file = md5fn + md5ext[i];
|
|
if (TWFunc::Path_Exists(md5file)) {
|
|
foundMd5File = true;
|
|
break;
|
|
}
|
|
i++;
|
|
}
|
|
|
|
if (!foundMd5File) {
|
|
gui_print("Skipping MD5 check: no MD5 file found\n");
|
|
return -1;
|
|
} else if (TWFunc::read_file(md5file, line) != 0) {
|
|
gui_print("Skipping MD5 check: MD5 file unreadable\n");
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* verify_md5digest return codes:
|
|
-2: md5 did not match
|
|
-1: no md5 file found
|
|
0: md5 matches
|
|
1: md5 file unreadable
|
|
*/
|
|
|
|
int twrpDigest::verify_md5digest(void) {
|
|
string buf;
|
|
char hex[3];
|
|
int i, ret;
|
|
string md5string;
|
|
|
|
ret = read_md5digest();
|
|
if (ret != 0)
|
|
return ret;
|
|
stringstream ss(line);
|
|
vector<string> tokens;
|
|
while (ss >> buf)
|
|
tokens.push_back(buf);
|
|
computeMD5();
|
|
for (i = 0; i < 16; ++i) {
|
|
snprintf(hex, 3, "%02x", md5sum[i]);
|
|
md5string += hex;
|
|
}
|
|
if (tokens.at(0) != md5string) {
|
|
LOGERR("MD5 does not match\n");
|
|
return -2;
|
|
}
|
|
|
|
gui_print("MD5 matched\n");
|
|
return 0;
|
|
}
|