Add -B, remove -C

docs/palera1n.1

@@ -11,7 +11,7 @@
 .Nd iOS 15+ arm64 iOS/iPadOS jailbreaking tool
 .Sh SYNOPSIS
 .Nm
-.Op Fl cCdDEfhlnLOpRsvV
+.Op Fl BcdDEfhlnLOpRsvV
 .Op Fl e Ar Boot arguments
 .Op Fl k Ar Pongo image
 .Op Fl o Ar overlay file
@@ -99,16 +99,15 @@ files. As a result, using the loader app to install the jailbreak environment
 is not supported when this option is used together with
 .Fl f , -fakefs
 \[char46]
+.It Fl B , -setup-fakefs-partial
+Like
+.Fl c , -setup-fakefs
+but the size of the created fakefs is smaller at the expense of having unwritable
+parts in rarely-written paths. (good for 16 GB devices)
 .It Fl c , -setup-fakefs
 When used with
 .Fl f , -fakefs ,
 Create the new APFS volume required for rootful. Will fail if one already exists.
-.It Fl C , -setup-fakefs-forced
-When used with
-.Fl f , -fakefs ,
-behaves like
-.Fl c , -setup-fakefs ,
-but existing fakefs, if exists, will be overwritten instead.
 .It Fl d , -demote
 Set the effective production fuse to 0, so as to enable hardware debugging features.
 .It Fl D , -dfuhelper-only

include/kerninfo.h

@@ -58,6 +58,7 @@
 #define palerain_option_jbinit_log_to_file   (1 << 1) /* log to /cores/jbinit.log */
 #define palerain_option_setup_rootful        (1 << 2) /* create fakefs */
 #define palerain_option_setup_rootful_forced (1 << 3) /* create fakefs over an existing one */
+#define palerain_option_setup_partial_root   (1 << 4) /* fakefs creating should be partial */
 
 #ifdef DEV_BUILD
 #define palerain_option_test1               (1 << 29)

src/optparse.c

@@ -16,8 +16,8 @@ checkrain_option_t host_flags = 0;
 checkrain_option_p host_flags_p = &host_flags;
 
 static struct option longopts[] = {
+	{"setup-partial-fakefs", no_argument, NULL, 'B'},
 	{"setup-fakefs", no_argument, NULL, 'c'},
-	{"setup-fakefs-forced", no_argument, NULL, 'C'},
 	{"dfuhelper", no_argument, NULL, 'D'},
 	{"help", no_argument, NULL, 'h'},
 	{"pongo-shell", no_argument, NULL, 'p'},
@@ -66,8 +66,8 @@ static int usage(int e, char* prog_name)
 			"\t-1, --test1\t\t\t\tSet palerain_option_test1\n"
 			"\t-2, --test2\t\t\t\tSet palerain_option_test2\n"
 #endif
+			"\t-B, --setup-partial-fakefs\t\tSetup partial fakefs\n"
 			"\t-c, --setup-fakefs\t\t\tSetup fakefs\n"
-			"\t-C, --setup-fakefs-forced\t\tSetup fakefs and overwrite any existing ones\n"
 			"\t-d, --demote\t\t\t\tDemote\n"
 			"\t-D, --dfuhelper-only\t\t\tExit after entering DFU\n"
 			"\t-e, --boot-args <boot arguments>\tXNU boot arguments\n"
@@ -106,20 +106,20 @@ int optparse(int argc, char* argv[]) {
 	int index;
 	while ((opt = getopt_long(argc, argv, 
 #ifdef DEV_BUILD
-	"12cCDEhpvVldsOLftRnPe:o:r:K:k:i:", 
+	"12BcDEhpvVldsOLftRnPe:o:r:K:k:i:", 
 #else
-	"cCDEhpvVldsOLfRnPe:o:r:K:k:i:", 
+	"BcDEhpvVldsOLfRnPe:o:r:K:k:i:", 
 #endif
 	longopts, NULL)) != -1)
 	{
 		switch (opt) {
-		case 'c':
+		case 'B':
+			palerain_flags |= palerain_option_setup_partial_root;
 			palerain_flags |= palerain_option_setup_rootful;
 			kpf_flags |= checkrain_option_verbose_boot;
 			break;
-		case 'C':
-			palerain_flags |= palerain_option_setup_rootful;	
-			palerain_flags |= palerain_option_setup_rootful_forced;
+		case 'c':
+			palerain_flags |= palerain_option_setup_rootful;
 			kpf_flags |= checkrain_option_verbose_boot;
 			break;
 		case 'p':
@@ -249,10 +249,6 @@ int optparse(int argc, char* argv[]) {
 		return 0;
 	}
 
-	if (checkrain_option_enabled(checkrain_flags, checkrain_option_force_revert) && checkrain_option_enabled(palerain_flags, palerain_option_setup_rootful)) {
-		LOG(LOG_WARNING, "force revert and setup rootful requested at the same time, behaviour here is undefined");
-	}
-
 	snprintf(checkrain_flags_cmd, 0x20, "checkra1n_flags 0x%x", checkrain_flags);
 	snprintf(palerain_flags_cmd, 0x20, "palera1n_flags 0x%x", palerain_flags);
 	snprintf(kpf_flags_cmd, 0x20, "kpf_flags 0x%x", kpf_flags);