CCSecurity Disabler for L-02E V20a

ccs_disabler.patch

diff --git a/security/Kconfig b/security/Kconfig
index 61e0643..0bfdc80 100755
--- a/security/Kconfig
+++ b/security/Kconfig
@@ -235,5 +235,7 @@ config DEFAULT_SECURITY
 
 source security/ccsecurity/Kconfig
 
+source security/ccs_disabler/Kconfig
+
 endmenu
 
diff --git a/security/Makefile b/security/Makefile
index 12748f9..42067b0 100755
--- a/security/Makefile
+++ b/security/Makefile
@@ -31,3 +31,5 @@ obj-$(CONFIG_INTEGRITY)        		+= integrity/built-in.o
 
 subdir-$(CONFIG_CCSECURITY)		+= ccsecurity
 obj-$(CONFIG_CCSECURITY)		+= ccsecurity/built-in.o
+
+subdir-y				+= ccs_disabler
diff --git a/security/ccs_disabler/Kconfig b/security/ccs_disabler/Kconfig
new file mode 100644
index 0000000..6c964a0
--- /dev/null
+++ b/security/ccs_disabler/Kconfig
@@ -0,0 +1,3 @@
+config CONFIG_CCSECURITY_DISABLER
+	tristate "CCSecurity disabler support"
+	default m
diff --git a/security/ccs_disabler/Makefile b/security/ccs_disabler/Makefile
new file mode 100644
index 0000000..81856ec
--- /dev/null
+++ b/security/ccs_disabler/Makefile
@@ -0,0 +1 @@
+obj-m += ccs_disabler.o
diff --git a/security/ccs_disabler/ccs_disabler.c b/security/ccs_disabler/ccs_disabler.c
new file mode 100644
index 0000000..fe66620
--- /dev/null
+++ b/security/ccs_disabler/ccs_disabler.c
@@ -0,0 +1,57 @@
+#include <linux/version.h>
+#include <linux/module.h>
+#include <linux/init.h>
+
+#include <linux/ccsecurity.h>
+
+static struct ccsecurity_operations save;
+
+static void do_patch(void)
+{
+  void **ops;
+  int i;
+
+  save = ccsecurity_ops;
+
+  ops = (void **)&ccsecurity_ops;
+  for (i = 0; i < sizeof (ccsecurity_ops) / sizeof (void *); i++) {
+    if (ops[i] == ccsecurity_ops.search_binary_handler) {
+      printk(KERN_INFO "ccs_disabler: #%d: search_binary_handler = %p\n", i, ops[i]);
+      ops[i] = search_binary_handler;
+    }
+    else {
+      ops[i] = NULL;
+    }
+  }
+}
+
+static void do_unpatch(void)
+{
+  ccsecurity_ops = save;
+}
+
+static int __init ccs_disabler_init_module(void)
+{
+  printk(KERN_INFO "ccs_disabler: loaded\n");
+
+  do_patch();
+
+  printk(KERN_INFO "ccs_disabler: patch done\n");
+
+  return 0;
+}
+
+static void ccs_disabler_cleanup_module(void)
+{
+  printk(KERN_INFO "ccs_disabler: removing patch\n");
+
+  do_unpatch();
+
+  printk(KERN_INFO "ccs_disabler: unloaded.\n");
+}
+
+MODULE_DESCRIPTION("CCSecurity Disabler for L-02E V20a");
+MODULE_AUTHOR("@fi01");
+MODULE_LICENSE("GPL");
+module_init(ccs_disabler_init_module);
+module_exit(ccs_disabler_cleanup_module);