xref: /openbmc/linux/security/tomoyo/Kconfig (revision 8e9356c6)
1config SECURITY_TOMOYO
2	bool "TOMOYO Linux Support"
3	depends on SECURITY
4	depends on NET
5	select SECURITYFS
6	select SECURITY_PATH
7	select SECURITY_NETWORK
8	default n
9	help
10	  This selects TOMOYO Linux, pathname-based access control.
11	  Required userspace tools and further information may be
12	  found at <http://tomoyo.sourceforge.jp/>.
13	  If you are unsure how to answer this question, answer N.
14
15config SECURITY_TOMOYO_MAX_ACCEPT_ENTRY
16	int "Default maximal count for learning mode"
17	default 2048
18	range 0 2147483647
19	depends on SECURITY_TOMOYO
20	help
21	  This is the default value for maximal ACL entries
22	  that are automatically appended into policy at "learning mode".
23	  Some programs access thousands of objects, so running
24	  such programs in "learning mode" dulls the system response
25	  and consumes much memory.
26	  This is the safeguard for such programs.
27
28config SECURITY_TOMOYO_MAX_AUDIT_LOG
29	int "Default maximal count for audit log"
30	default 1024
31	range 0 2147483647
32	depends on SECURITY_TOMOYO
33	help
34	  This is the default value for maximal entries for
35	  audit logs that the kernel can hold on memory.
36	  You can read the log via /sys/kernel/security/tomoyo/audit.
37	  If you don't need audit logs, you may set this value to 0.
38
39config SECURITY_TOMOYO_OMIT_USERSPACE_LOADER
40	bool "Activate without calling userspace policy loader."
41	default n
42	depends on SECURITY_TOMOYO
43	---help---
44	  Say Y here if you want to activate access control as soon as built-in
45	  policy was loaded. This option will be useful for systems where
46	  operations which can lead to the hijacking of the boot sequence are
47	  needed before loading the policy. For example, you can activate
48	  immediately after loading the fixed part of policy which will allow
49	  only operations needed for mounting a partition which contains the
50	  variant part of policy and verifying (e.g. running GPG check) and
51	  loading the variant part of policy. Since you can start using
52	  enforcing mode from the beginning, you can reduce the possibility of
53	  hijacking the boot sequence.
54
55config SECURITY_TOMOYO_POLICY_LOADER
56	string "Location of userspace policy loader"
57	default "/sbin/tomoyo-init"
58	depends on SECURITY_TOMOYO
59	depends on !SECURITY_TOMOYO_OMIT_USERSPACE_LOADER
60	---help---
61	  This is the default pathname of policy loader which is called before
62	  activation. You can override this setting via TOMOYO_loader= kernel
63	  command line option.
64
65config SECURITY_TOMOYO_ACTIVATION_TRIGGER
66	string "Trigger for calling userspace policy loader"
67	default "/sbin/init"
68	depends on SECURITY_TOMOYO
69	depends on !SECURITY_TOMOYO_OMIT_USERSPACE_LOADER
70	---help---
71	  This is the default pathname of activation trigger.
72	  You can override this setting via TOMOYO_trigger= kernel command line
73	  option. For example, if you pass init=/bin/systemd option, you may
74	  want to also pass TOMOYO_trigger=/bin/systemd option.
75