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-rw-r--r--partition.cpp15
-rwxr-xr-xprebuilt/install-recovery.sh10
-rwxr-xr-xprebuilt/subin112164 -> 113036 bytes
-rw-r--r--twrp-functions.cpp72
-rw-r--r--twrp-functions.hpp1
5 files changed, 60 insertions, 38 deletions
diff --git a/partition.cpp b/partition.cpp
index 57a7d8de5..74271922f 100644
--- a/partition.cpp
+++ b/partition.cpp
@@ -53,6 +53,7 @@ extern "C" {
}
#ifdef HAVE_SELINUX
#include "selinux/selinux.h"
+#include <selinux/label.h>
#endif
using namespace std;
@@ -1344,17 +1345,25 @@ bool TWPartition::Wipe_EXT4() {
return false;
#if defined(HAVE_SELINUX) && defined(USE_EXT4)
+ int ret;
+ char *secontext = NULL;
+
gui_print("Formatting %s using make_ext4fs function.\n", Display_Name.c_str());
- if (make_ext4fs(Actual_Block_Device.c_str(), Length, Mount_Point.c_str(), selinux_handle) != 0) {
+
+ if (selabel_lookup(selinux_handle, &secontext, Mount_Point.c_str(), S_IFDIR) < 0) {
+ LOGINFO("Cannot lookup security context for '%s'\n", Mount_Point.c_str());
+ ret = make_ext4fs(Actual_Block_Device.c_str(), Length, Mount_Point.c_str(), NULL);
+ } else {
+ ret = make_ext4fs(Actual_Block_Device.c_str(), Length, Mount_Point.c_str(), selinux_handle);
+ }
+ if (ret != 0) {
LOGERR("Unable to wipe '%s' using function call.\n", Mount_Point.c_str());
return false;
} else {
- #ifdef HAVE_SELINUX
string sedir = Mount_Point + "/lost+found";
PartitionManager.Mount_By_Path(sedir.c_str(), true);
rmdir(sedir.c_str());
mkdir(sedir.c_str(), S_IRWXU | S_IRWXG | S_IWGRP | S_IXGRP);
- #endif
return true;
}
#else
diff --git a/prebuilt/install-recovery.sh b/prebuilt/install-recovery.sh
index 9b4374520..f62cf0b96 100755
--- a/prebuilt/install-recovery.sh
+++ b/prebuilt/install-recovery.sh
@@ -5,15 +5,13 @@
# to launch it from init.rc
# Launches SuperSU in daemon mode only on Android 4.3+.
-# Nothing will happen on 4.2.x or older.
+# Nothing will happen on 4.2.x or older, unless SELinux+Enforcing.
# If you want to force loading the daemon, use "--daemon" instead
/system/xbin/daemonsu --auto-daemon &
-# Some apps like to run stuff from this script as well, but the
-# installer will have done "chattr +i" on this file to prevent
-# accidental modification and deletion. In your code, just search
-# this file for "install-recovery-2.sh", and if present, write
-# there instead.
+# Some apps like to run stuff from this script as well, that will
+# obviously break root - in your code, just search this file
+# for "install-recovery-2.sh", and if present, write there instead.
/system/etc/install-recovery-2.sh
diff --git a/prebuilt/su b/prebuilt/su
index da77f0a70..941542798 100755
--- a/prebuilt/su
+++ b/prebuilt/su
Binary files differ
diff --git a/twrp-functions.cpp b/twrp-functions.cpp
index df7174362..bbd3c4c9f 100644
--- a/twrp-functions.cpp
+++ b/twrp-functions.cpp
@@ -559,13 +559,21 @@ bool TWFunc::Fix_su_Perms(void) {
if (!PartitionManager.Mount_By_Path("/system", true))
return false;
+ string propvalue = System_Property_Get("ro.build.version.sdk");
+ string su_perms = "6755";
+ if (!propvalue.empty()) {
+ int sdk_version = atoi(propvalue.c_str());
+ if (sdk_version >= 18)
+ su_perms = "0755";
+ }
+
string file = "/system/bin/su";
if (TWFunc::Path_Exists(file)) {
if (chown(file.c_str(), 0, 0) != 0) {
LOGERR("Failed to chown '%s'\n", file.c_str());
return false;
}
- if (tw_chmod(file, "6755") != 0) {
+ if (tw_chmod(file, su_perms) != 0) {
LOGERR("Failed to chmod '%s'\n", file.c_str());
return false;
}
@@ -576,7 +584,7 @@ bool TWFunc::Fix_su_Perms(void) {
LOGERR("Failed to chown '%s'\n", file.c_str());
return false;
}
- if (tw_chmod(file, "6755") != 0) {
+ if (tw_chmod(file, su_perms) != 0) {
LOGERR("Failed to chmod '%s'\n", file.c_str());
return false;
}
@@ -587,7 +595,7 @@ bool TWFunc::Fix_su_Perms(void) {
LOGERR("Failed to chown '%s'\n", file.c_str());
return false;
}
- if (tw_chmod(file, "6755") != 0) {
+ if (tw_chmod(file, "0755") != 0) {
LOGERR("Failed to chmod '%s'\n", file.c_str());
return false;
}
@@ -598,7 +606,7 @@ bool TWFunc::Fix_su_Perms(void) {
LOGERR("Failed to chown '%s'\n", file.c_str());
return false;
}
- if (tw_chmod(file, "6755") != 0) {
+ if (tw_chmod(file, su_perms) != 0) {
LOGERR("Failed to chmod '%s'\n", file.c_str());
return false;
}
@@ -980,50 +988,56 @@ string TWFunc::Get_Current_Date() {
return Current_Date;
}
-void TWFunc::Auto_Generate_Backup_Name() {
+string TWFunc::System_Property_Get(string Prop_Name) {
bool mount_state = PartitionManager.Is_Mounted_By_Path("/system");
std::vector<string> buildprop;
- if (!PartitionManager.Mount_By_Path("/system", true)) {
- DataManager::SetValue(TW_BACKUP_NAME, Get_Current_Date());
- return;
- }
+ string propvalue;
+ if (!PartitionManager.Mount_By_Path("/system", true))
+ return propvalue;
if (TWFunc::read_file("/system/build.prop", buildprop) != 0) {
- LOGINFO("Unable to open /system/build.prop for getting backup name.\n");
+ LOGINFO("Unable to open /system/build.prop for getting '%s'.\n", Prop_Name.c_str());
DataManager::SetValue(TW_BACKUP_NAME, Get_Current_Date());
if (!mount_state)
PartitionManager.UnMount_By_Path("/system", false);
- return;
+ return propvalue;
}
int line_count = buildprop.size();
int index;
size_t start_pos = 0, end_pos;
- string propname, propvalue;
+ string propname;
for (index = 0; index < line_count; index++) {
end_pos = buildprop.at(index).find("=", start_pos);
propname = buildprop.at(index).substr(start_pos, end_pos);
- if (propname == "ro.build.display.id") {
+ if (propname == Prop_Name) {
propvalue = buildprop.at(index).substr(end_pos + 1, buildprop.at(index).size());
- string Backup_Name = Get_Current_Date();
- Backup_Name += " " + propvalue;
- if (Backup_Name.size() > MAX_BACKUP_NAME_LEN)
- Backup_Name.resize(MAX_BACKUP_NAME_LEN);
- // Trailing spaces cause problems on some file systems, so remove them
- string space_check, space = " ";
- space_check = Backup_Name.substr(Backup_Name.size() - 1, 1);
- while (space_check == space) {
- Backup_Name.resize(Backup_Name.size() - 1);
- space_check = Backup_Name.substr(Backup_Name.size() - 1, 1);
- }
- DataManager::SetValue(TW_BACKUP_NAME, Backup_Name);
- break;
+ if (!mount_state)
+ PartitionManager.UnMount_By_Path("/system", false);
+ return propvalue;
}
}
+ if (!mount_state)
+ PartitionManager.UnMount_By_Path("/system", false);
+ return propvalue;
+}
+
+void TWFunc::Auto_Generate_Backup_Name() {
+ string propvalue = System_Property_Get("ro.build.display.id");
if (propvalue.empty()) {
- LOGINFO("ro.build.display.id not found in build.prop\n");
DataManager::SetValue(TW_BACKUP_NAME, Get_Current_Date());
+ return;
}
- if (!mount_state)
- PartitionManager.UnMount_By_Path("/system", false);
+ string Backup_Name = Get_Current_Date();
+ Backup_Name += " " + propvalue;
+ if (Backup_Name.size() > MAX_BACKUP_NAME_LEN)
+ Backup_Name.resize(MAX_BACKUP_NAME_LEN);
+ // Trailing spaces cause problems on some file systems, so remove them
+ string space_check, space = " ";
+ space_check = Backup_Name.substr(Backup_Name.size() - 1, 1);
+ while (space_check == space) {
+ Backup_Name.resize(Backup_Name.size() - 1);
+ space_check = Backup_Name.substr(Backup_Name.size() - 1, 1);
+ }
+ DataManager::SetValue(TW_BACKUP_NAME, Backup_Name);
}
void TWFunc::Fixup_Time_On_Boot()
diff --git a/twrp-functions.hpp b/twrp-functions.hpp
index 587d7725e..50bfe2c3c 100644
--- a/twrp-functions.hpp
+++ b/twrp-functions.hpp
@@ -74,6 +74,7 @@ public:
static int Try_Decrypting_File(string fn, string password); // -1 for some error, 0 for failed to decrypt, 1 for decrypted, 3 for decrypted and found gzip format
static bool Try_Decrypting_Backup(string Restore_Path, string Password); // true for success, false for failed to decrypt
static int Wait_For_Child(pid_t pid, int *status, string Child_Name); // Waits for pid to exit and checks exit status
+ static string System_Property_Get(string Prop_Name); // Returns value of Prop_Name from reading /system/build.prop
static string Get_Current_Date(void); // Returns the current date in ccyy-m-dd--hh-nn-ss format
static void Auto_Generate_Backup_Name(); // Populates TW_BACKUP_NAME with a backup name based on current date and ro.build.display.id from /system/build.prop
static void Fixup_Time_On_Boot(); // Fixes time on devices which need it
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-21 15:11:23 +0100