Revert "Add a version check for SELinux policy on device."

This reverts commit 921be8b6568df0057c4eacbac2e1022b71e09620.

1 files changed, 0 insertions, 59 deletions

diff --git a/init/init.c b/init/init.c
index 853762b..fc8ff20 100755
--- a/init/init.c
+++ b/init/init.c
@@ -61,9 +61,6 @@
 struct selabel_handle *sehandle;
 struct selabel_handle *sehandle_prop;
 
-#define SELINUX_DATA_POLICY_VERSION_PATH "/data/security/bundle/metadata/version"
-#define SELINUX_BOOT_POLICY_VERSION_PATH "/sepolicy.version"
-
 static int property_triggers_enabled = 0;
 
 #if BOOTCHART
@@ -777,58 +774,6 @@ void selinux_init_all_handles(void)
     sehandle_prop = selinux_android_prop_context_handle();
 }
 
-static int selinux_read_version_file(char *version_file_path)
-{
-    unsigned version_string_length = 0;
-    unsigned characters_consumed = 0;
-    int policy_version = 0;
-    char *version_string;
-
-    version_string = read_file(version_file_path, &version_string_length);
-    if (version_string == NULL)
-        return -1;
-
-    sscanf(version_string, "%d%n", &policy_version, &characters_consumed);
-    free(version_string);
-
-    if (characters_consumed != (version_string_length - 1))
-        return -1;
-
-    return policy_version;
-}
-
-static int selinux_check_policy_version(void)
-{
-    int data_policy_version = 0;
-    int boot_policy_version = 0;
-
-    // get the policy version for the sepolicy on the data partition
-    // fail open to allow the existing policy to relabel
-    data_policy_version = selinux_read_version_file(SELINUX_DATA_POLICY_VERSION_PATH);
-    if (data_policy_version < 0) {
-        INFO("Couldn't read data policy version file");
-        return 0;
-    }
-
-    // get the policy version for the sepolicy on the boot partition
-    // fail open to allow devices without an sepolicy.version to update
-    boot_policy_version = selinux_read_version_file(SELINUX_BOOT_POLICY_VERSION_PATH);
-    if (boot_policy_version < 0) {
-        INFO("Couldn't read boot policy version file");
-        return 0;
-    }
-
-    // return an error if the "updated" policy is too old
-    if (data_policy_version <= boot_policy_version) {
-        ERROR("SELinux: data policy version (%d) <= factory policy version (%d)",
-            data_policy_version,
-            boot_policy_version);
-        return -1;
-    }
-
-    return 0;
-}
-
 int selinux_reload_policy(void)
 {
     if (!selinux_enabled) {
@@ -837,10 +782,6 @@ int selinux_reload_policy(void)
 
     INFO("SELinux: Attempting to reload policy files\n");
 
-    if (selinux_check_policy_version() == -1) {
-        return -1;
-    }
-
     if (selinux_android_reload_policy() == -1) {
         return -1;
     }