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improve: not umount modules /system mounts

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This commit creates a new behavior in ReZygisk umounting system where it now ignores "/system/..." mounts, as umounting them generally leads to unbootable system.
This commit is contained in:
ThePedroo
2025-04-16 02:04:40 -03:00
parent c37a5b1c8e
commit db24c1c439
1 changed files with 17 additions and 24 deletions
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35
zygiskd/src/utils.c
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@@ -639,6 +639,8 @@ enum mns_umount_state unmount_root(bool modules_only, struct root_impl impl) {
if (strncmp(mount.target, "/debug_ramdisk", strlen("/debug_ramdisk")) == 0)
should_unmount = true;
} else {
if (strncmp(mount.target, "/system/", strlen("/system/")) == 0) continue;
if (strcmp(mount.source, source_name) == 0) should_unmount = true;
if (strncmp(mount.root, "/adb/modules", strlen("/adb/modules")) == 0) should_unmount = true;
if (strncmp(mount.target, "/data/adb/modules", strlen("/data/adb/modules")) == 0) should_unmount = true;
@@ -683,27 +685,18 @@ enum mns_umount_state unmount_root(bool modules_only, struct root_impl impl) {
struct mountinfo mount = mounts.mounts[i];
bool should_unmount = false;
if (
(
modules_only &&
(
strcmp(mount.source, "magisk") == 0 ||
strncmp(mount.target, "/debug_ramdisk", strlen("/debug_ramdisk")) == 0 ||
strncmp(mount.target, "/system/bin", strlen("/system/bin")) == 0
)
) ||
(
!modules_only &&
(
strcmp(mount.source, "magisk") == 0 ||
strncmp(mount.target, "/debug_ramdisk", strlen("/debug_ramdisk")) == 0 ||
strncmp(mount.target, "/data/adb/modules", strlen("/data/adb/modules")) == 0 ||
strncmp(mount.root, "/adb/modules", strlen("/adb/modules")) == 0 ||
strncmp(mount.target, "/system/bin", strlen("/system/bin")) == 0
)
)
) {
should_unmount = true;
if (modules_only) {
if (strcmp(mount.source, "magisk") == 0) should_unmount = true;
if (strncmp(mount.target, "/debug_ramdisk", strlen("/debug_ramdisk")) == 0) should_unmount = true;
if (strncmp(mount.target, "/system/bin", strlen("/system/bin")) == 0) should_unmount = true;
} else {
if (strncmp(mount.target, "/system/", strlen("/system/")) == 0) continue;
if (strcmp(mount.source, "magisk") == 0) should_unmount = true;
if (strncmp(mount.target, "/debug_ramdisk", strlen("/debug_ramdisk")) == 0) should_unmount = true;
if (strncmp(mount.target, "/data/adb/modules", strlen("/data/adb/modules")) == 0) should_unmount = true;
if (strncmp(mount.root, "/adb/modules", strlen("/adb/modules")) == 0) should_unmount = true;
if (strncmp(mount.target, "/system/bin", strlen("/system/bin")) == 0) should_unmount = true;
}
if (!should_unmount) continue;