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Restore capabilities to run-as binary

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Change-Id: I9e2b8e9b69c94b94c57143c04b950530490ec33e
This commit is contained in:
Dees Troy
2014-02-28 17:24:43 +00:00
parent 5e73cc7703
commit 4159aedfaa
3 changed files with 33 additions and 3 deletions
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partition.cpp
+29 -2
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@@ -63,6 +63,11 @@ extern "C" {
#include "selinux/selinux.h"
#include <selinux/label.h>
#endif
#ifdef HAVE_CAPABILITIES
#include <sys/capability.h>
#include <sys/xattr.h>
#include <linux/xattr.h>
#endif
using namespace std;
@@ -1699,6 +1704,7 @@ bool TWPartition::Restore_Tar(string restore_folder, string Restore_File_System)
string Full_FileName, Command;
int index = 0;
char split_index[5];
bool ret = false;
if (Has_Android_Secure) {
if (!Wipe_AndSec())
@@ -1726,8 +1732,29 @@ bool TWPartition::Restore_Tar(string restore_folder, string Restore_File_System)
tar.setpassword(Password);
#endif
if (tar.extractTarFork() != 0)
return false;
return true;
ret = false;
else
ret = true;
#ifdef HAVE_CAPABILITIES
// Restore capabilities to the run-as binary
if (Mount_Point == "/system" && Mount(true) && TWFunc::Path_Exists("/system/bin/run-as")) {
struct vfs_cap_data cap_data;
uint64_t capabilities = (1 << CAP_SETUID) | (1 << CAP_SETGID);
memset(&cap_data, 0, sizeof(cap_data));
cap_data.magic_etc = VFS_CAP_REVISION | VFS_CAP_FLAGS_EFFECTIVE;
cap_data.data[0].permitted = (uint32_t) (capabilities & 0xffffffff);
cap_data.data[0].inheritable = 0;
cap_data.data[1].permitted = (uint32_t) (capabilities >> 32);
cap_data.data[1].inheritable = 0;
if (setxattr("/system/bin/run-as", XATTR_NAME_CAPS, &cap_data, sizeof(cap_data), 0) < 0) {
LOGINFO("Failed to reset capabilities of /system/bin/run-as binary.\n");
} else {
LOGINFO("Reset capabilities of /system/bin/run-as binary successful.\n");
}
}
#endif
return ret;
}
bool TWPartition::Restore_DD(string restore_folder) {