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authorEric Paris <eparis@redhat.com>2012-03-20 14:35:12 -0400
committerEric Paris <eparis@redhat.com>2012-04-09 12:22:47 -0400
commitaa893269de6277b44be88e25dcd5331c934c29c4 (patch)
treef994e023f787c1665b65725f2c009a9f5a021be7 /security/selinux/ss/policydb.h
parent6ce74ec75ca690c4fb3a3c5f8b7767d094d93215 (diff)
SELinux: allow default source/target selectors for user/role/range
When new objects are created we have great and flexible rules to determine the type of the new object. We aren't quite as flexible or mature when it comes to determining the user, role, and range. This patch adds a new ability to specify the place a new objects user, role, and range should come from. For users and roles it can come from either the source or the target of the operation. aka for files the user can either come from the source (the running process and todays default) or it can come from the target (aka the parent directory of the new file) examples always are done with directory context: system_u:object_r:mnt_t:s0-s0:c0.c512 process context: unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 [no rule] unconfined_u:object_r:mnt_t:s0 test_none [default user source] unconfined_u:object_r:mnt_t:s0 test_user_source [default user target] system_u:object_r:mnt_t:s0 test_user_target [default role source] unconfined_u:unconfined_r:mnt_t:s0 test_role_source [default role target] unconfined_u:object_r:mnt_t:s0 test_role_target [default range source low] unconfined_u:object_r:mnt_t:s0 test_range_source_low [default range source high] unconfined_u:object_r:mnt_t:s0:c0.c1023 test_range_source_high [default range source low-high] unconfined_u:object_r:mnt_t:s0-s0:c0.c1023 test_range_source_low-high [default range target low] unconfined_u:object_r:mnt_t:s0 test_range_target_low [default range target high] unconfined_u:object_r:mnt_t:s0:c0.c512 test_range_target_high [default range target low-high] unconfined_u:object_r:mnt_t:s0-s0:c0.c512 test_range_target_low-high Signed-off-by: Eric Paris <eparis@redhat.com>
Diffstat (limited to 'security/selinux/ss/policydb.h')
-rw-r--r--security/selinux/ss/policydb.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/security/selinux/ss/policydb.h b/security/selinux/ss/policydb.h
index b846c038718..a949f1ad43b 100644
--- a/security/selinux/ss/policydb.h
+++ b/security/selinux/ss/policydb.h
@@ -60,6 +60,19 @@ struct class_datum {
struct symtab permissions; /* class-specific permission symbol table */
struct constraint_node *constraints; /* constraints on class permissions */
struct constraint_node *validatetrans; /* special transition rules */
+ /* Options how a new object user and role should be decided */
+#define DEFAULT_SOURCE 1
+#define DEFAULT_TARGET 2
+ char default_user;
+ char default_role;
+/* Options how a new object range should be decided */
+#define DEFAULT_SOURCE_LOW 1
+#define DEFAULT_SOURCE_HIGH 2
+#define DEFAULT_SOURCE_LOW_HIGH 3
+#define DEFAULT_TARGET_LOW 4
+#define DEFAULT_TARGET_HIGH 5
+#define DEFAULT_TARGET_LOW_HIGH 6
+ char default_range;
};
/* Role attributes */