Relabel /data/system/packages.list to new type.
Conservatively grant access to packages_list_file to everything that had
access to system_data_file:file even if the comment in the SELinux
policy suggests it was for another use.
Ran a diff on the resulting SEPolicy, the only difference of domains
being granted is those that had system_data_file:dir permissiosn which
is clearly not applicable for packages.list
diff -u0 <(sesearch --allow -t system_data_file ~/sepolicy | sed 's/system_data_file/packages_list_file/') <(sesearch --allow -t packages_list_file ~/sepolicy_new)
--- /proc/self/fd/16 2019-03-19 20:01:44.378409146 +0000
+++ /proc/self/fd/18 2019-03-19 20:01:44.378409146 +0000
@@ -3 +2,0 @@
-allow appdomain packages_list_file:dir getattr;
@@ -6 +4,0 @@
-allow coredomain packages_list_file:dir getattr;
@@ -8 +5,0 @@
-allow domain packages_list_file:dir search;
@@ -35 +31,0 @@
-allow system_server packages_list_file:dir { rename search setattr read lock create reparent getattr write relabelfrom ioctl rmdir remove_name open add_name };
@@ -40 +35,0 @@
-allow tee packages_list_file:dir { search read lock getattr ioctl open };
@@ -43,3 +37,0 @@
-allow traced_probes packages_list_file:dir { read getattr open search };
-allow vendor_init packages_list_file:dir { search setattr read create getattr write relabelfrom ioctl rmdir remove_name open add_name };
-allow vold packages_list_file:dir { search setattr read lock create getattr mounton write ioctl rmdir remove_name open add_name };
@@ -48 +39,0 @@
-allow vold_prepare_subdirs packages_list_file:dir { read write relabelfrom rmdir remove_name open add_name };
@@ -50 +40,0 @@
-allow zygote packages_list_file:dir { search read lock getattr ioctl open };
Bug: 123186697
Change-Id: Ieabf313653deb5314872b63cd47dadd535af7b07
diff --git a/private/file_contexts b/private/file_contexts
index b913e94..cd1df0a 100644
--- a/private/file_contexts
+++ b/private/file_contexts
@@ -421,6 +421,7 @@
# propagate to the "Expanded data files" section.
#
/data(/.*)? u:object_r:system_data_file:s0
+/data/system/packages\.list u:object_r:packages_list_file:s0
/data/.layout_version u:object_r:install_data_file:s0
/data/unencrypted(/.*)? u:object_r:unencrypted_data_file:s0
/data/backup(/.*)? u:object_r:backup_data_file:s0