-C, --clean-fakefs

docs/palera1n.1

@@ -113,6 +113,16 @@ This option currently does not work on iOS 16.
 When used with
 .Fl f , -fakefs ,
 creates the new APFS volume required for rootful. Will fail if one already exists.
+.It Fl C , -clean-fakefs
+This reverts the fakefs to the 
+.Em orig-fs
+snapshot that is created when the fakefs
+is first created, then the device will continue to boot jailbroken. This option 
+allows resetting the rootful environment without deleting the entire fakefs. 
+Note that this option will not work if the fakefs is created in an older version
+of palera1n that does not create the
+.Em orig-fs
+snapshot on the fakefs. 
 .It Fl d , -demote
 Set the effective production fuse to 0, so as to enable hardware debugging features.
 .It Fl D , -dfuhelper

include/kerninfo.h

@@ -65,6 +65,7 @@
 // #define palerain_option_no_ssv               (1 << 7) /* no signed system volume */
 // #define palerain_option_force_fakefs         (1 << 8) /* force fakefs, even without SSV */
 // #define palerain_option_rootless             (1 << 9) /* rootless jailbreak */
+#define palerain_option_clean_fakefs        (1 << 10) /* clean fakefs, but does not delete it */
 
 #ifdef DEV_BUILD
 #define palerain_option_test1               (1 << 29)

src/optparse.c

@@ -21,6 +21,7 @@ static bool force_use_verbose_boot = false;
 static struct option longopts[] = {
 	{"setup-partial-fakefs", no_argument, NULL, 'B'},
 	{"setup-fakefs", no_argument, NULL, 'c'},
+	{"clean-fakefs", no_argument, NULL, 'c'},
 	{"dfuhelper", no_argument, NULL, 'D'},
 	{"help", no_argument, NULL, 'h'},
 	{"pongo-shell", no_argument, NULL, 'p'},
@@ -64,7 +65,7 @@ static int usage(int e, char* prog_name)
 			"12"
 #endif
 #ifdef ROOTFUL
-			"cfB"
+			"cCfB"
 #endif
 #ifdef TUI
 			"t"
@@ -81,6 +82,7 @@ static int usage(int e, char* prog_name)
 #ifdef ROOTFUL
 			"\t-B, --setup-partial-fakefs\t\tSetup partial fakefs\n"
 			"\t-c, --setup-fakefs\t\t\tSetup fakefs\n"
+			"\t-C, --clean-fakefs\t\t\tClean fakefs\n"
 #endif
 			"\t-d, --demote\t\t\t\tDemote\n"
 			"\t-D, --dfuhelper\t\t\t\tExit after entering DFU\n"
@@ -126,7 +128,7 @@ int optparse(int argc, char* argv[]) {
 #ifdef DEV_BUILD
 	"12"
 #endif
-	"fcB"
+	"fCcB"
 	,longopts, NULL)) != -1)
 	{
 		switch (opt) {
@@ -139,6 +141,9 @@ int optparse(int argc, char* argv[]) {
 			palerain_flags |= palerain_option_setup_rootful;
 			kpf_flags |= checkrain_option_verbose_boot;
 			break;
+		case 'C':
+			palerain_flags |= palerain_option_clean_fakefs;
+			break;
 		case 'p':
 			host_flags |= host_option_pongo_exit;
 			break;