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Support both old and new mkfs.f2fs

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Easiest way I could find to determine if we have the old or the
new mkfs.f2fs version is to pipe the usage output to grep and
grep the output for "reserved" and redirect the output to a file.
If the file has any data in it, then we must have the old
mkfs.f2fs that uses -r.

Change-Id: I7f1ed88b577a3f9827a98f0868d8f82e4e4886ac
This commit is contained in:
Ethan Yonker
2019-03-22 08:18:21 -05:00
parent 4879b37b5d
commit 7e94158684
3 changed files with 47 additions and 17 deletions
Download Patch File Download Diff File Expand all files Collapse all files
partition.cpp
+38 -10
View File
@@ -2275,17 +2275,45 @@ bool TWPartition::Wipe_F2FS() {
NeedPreserveFooter = false;
}
unsigned long long dev_sz = TWFunc::IOCTL_Get_Block_Size(Actual_Block_Device.c_str());
if (!dev_sz)
return false;
if (NeedPreserveFooter)
Length < 0 ? dev_sz += Length : dev_sz -= CRYPT_FOOTER_OFFSET;
gui_msg(Msg("formatting_using=Formatting {1} using {2}...")(Display_Name)("mkfs.f2fs"));
command = "mkfs.f2fs -d1 -f -O encrypt -O quota -O verity -w 4096 " + Actual_Block_Device + " " + to_string(dev_sz / 4096);
if (TWFunc::Path_Exists("/sbin/sload.f2fs")) {
command += " && sload.f2fs -t /data " + Actual_Block_Device;
// First determine if we have the old mkfs.f2fs that uses "-r reserved_bytes"
// or the new mkfs.f2fs that expects the number of sectors as the optional last argument
// Note: some 7.1 trees have the old and some have the new.
command = "mkfs.f2fs | grep \"reserved\" > /tmp/f2fsversiontest";
TWFunc::Exec_Cmd(command, false); // no help argument so printing usage exits with an error code
if (!TWFunc::Path_Exists("/tmp/f2fsversiontest")) {
LOGINFO("Error determining mkfs.f2fs version\n");
return false;
}
if (TWFunc::Get_File_Size("/tmp/f2fsversiontest") <= 0) {
LOGINFO("Using newer mkfs.f2fs\n");
unsigned long long dev_sz = TWFunc::IOCTL_Get_Block_Size(Actual_Block_Device.c_str());
if (!dev_sz)
return false;
if (NeedPreserveFooter)
Length < 0 ? dev_sz += Length : dev_sz -= CRYPT_FOOTER_OFFSET;
char dev_sz_str[48];
sprintf(dev_sz_str, "%llu", (dev_sz / 4096));
command = "mkfs.f2fs -d1 -f -O encrypt -O quota -O verity -w 4096 " + Actual_Block_Device + " " + dev_sz_str;
if (TWFunc::Path_Exists("/sbin/sload.f2fs")) {
command += " && sload.f2fs -t /data " + Actual_Block_Device;
}
} else {
LOGINFO("Using older mkfs.f2fs\n");
command = "mkfs.f2fs -t 0";
if (NeedPreserveFooter) {
// Only use length if we're not decrypted
char len[32];
int mod_length = Length;
if (Length < 0)
mod_length *= -1;
sprintf(len, "%i", mod_length);
command += " -r ";
command += len;
}
command += " " + Actual_Block_Device;
}
LOGINFO("mkfs.f2fs command: %s\n", command.c_str());
if (TWFunc::Exec_Cmd(command) == 0) {
twrp-functions.cpp
+7 -5
View File
@@ -77,7 +77,7 @@ int TWFunc::Exec_Cmd(const string& cmd, string &result) {
return ret;
}
int TWFunc::Exec_Cmd(const string& cmd) {
int TWFunc::Exec_Cmd(const string& cmd, bool Show_Errors) {
pid_t pid;
int status;
switch(pid = fork())
@@ -91,7 +91,7 @@ int TWFunc::Exec_Cmd(const string& cmd) {
break;
default:
{
if (TWFunc::Wait_For_Child(pid, &status, cmd) != 0)
if (TWFunc::Wait_For_Child(pid, &status, cmd, Show_Errors) != 0)
return -1;
else
return 0;
@@ -121,18 +121,20 @@ string TWFunc::Get_Path(const string& Path) {
return Path;
}
int TWFunc::Wait_For_Child(pid_t pid, int *status, string Child_Name) {
int TWFunc::Wait_For_Child(pid_t pid, int *status, string Child_Name, bool Show_Errors) {
pid_t rc_pid;
rc_pid = waitpid(pid, status, 0);
if (rc_pid > 0) {
if (WIFSIGNALED(*status)) {
gui_msg(Msg(msg::kError, "pid_signal={1} process ended with signal: {2}")(Child_Name)(WTERMSIG(*status))); // Seg fault or some other non-graceful termination
if (Show_Errors)
gui_msg(Msg(msg::kError, "pid_signal={1} process ended with signal: {2}")(Child_Name)(WTERMSIG(*status))); // Seg fault or some other non-graceful termination
return -1;
} else if (WEXITSTATUS(*status) == 0) {
LOGINFO("%s process ended with RC=%d\n", Child_Name.c_str(), WEXITSTATUS(*status)); // Success
} else {
gui_msg(Msg(msg::kError, "pid_error={1} process ended with ERROR: {2}")(Child_Name)(WEXITSTATUS(*status))); // Graceful exit, but there was an error
if (Show_Errors)
gui_msg(Msg(msg::kError, "pid_error={1} process ended with ERROR: {2}")(Child_Name)(WEXITSTATUS(*status))); // Graceful exit, but there was an error
return -1;
}
} else { // no PID returned
twrp-functions.hpp
+2 -2
View File
@@ -56,8 +56,8 @@ public:
static string Get_Filename(const string& Path); // Trims the path off of a filename
static int Exec_Cmd(const string& cmd, string &result); //execute a command and return the result as a string by reference
static int Exec_Cmd(const string& cmd); //execute a command
static int Wait_For_Child(pid_t pid, int *status, string Child_Name); // Waits for pid to exit and checks exit status
static int Exec_Cmd(const string& cmd, bool Show_Errors = true); //execute a command, displays an error to the GUI if Show_Errors is true, Show_Errors is true by default
static int Wait_For_Child(pid_t pid, int *status, string Child_Name, bool Show_Errors = true); // Waits for pid to exit and checks exit status, displays an error to the GUI if Show_Errors is true which is the default
static int Wait_For_Child_Timeout(pid_t pid, int *status, const string& Child_Name, int timeout); // Waits for a pid to exit until the timeout is hit. If timeout is hit, kill the chilld.
static bool Path_Exists(string Path); // Returns true if the path exists
static Archive_Type Get_File_Type(string fn); // Determines file type, 0 for unknown, 1 for gzip, 2 for OAES encrypted