1 # SPDX-License-Identifier: GPL-2.0-only 1 # SPDX-License-Identifier: GPL-2.0-only
2 config SECURITY_TOMOYO 2 config SECURITY_TOMOYO
3 bool "TOMOYO Linux Support" 3 bool "TOMOYO Linux Support"
4 depends on SECURITY 4 depends on SECURITY
5 depends on NET 5 depends on NET
6 select SECURITYFS 6 select SECURITYFS
7 select SECURITY_PATH 7 select SECURITY_PATH
8 select SECURITY_NETWORK 8 select SECURITY_NETWORK
9 default n 9 default n
10 help 10 help
11 This selects TOMOYO Linux, pathname- 11 This selects TOMOYO Linux, pathname-based access control.
12 Required userspace tools and further 12 Required userspace tools and further information may be
13 found at <https://tomoyo.sourceforge 13 found at <https://tomoyo.sourceforge.net/>.
14 If you are unsure how to answer this 14 If you are unsure how to answer this question, answer N.
15 15
16 config SECURITY_TOMOYO_MAX_ACCEPT_ENTRY 16 config SECURITY_TOMOYO_MAX_ACCEPT_ENTRY
17 int "Default maximal count for learnin 17 int "Default maximal count for learning mode"
18 default 2048 18 default 2048
19 range 0 2147483647 19 range 0 2147483647
20 depends on SECURITY_TOMOYO 20 depends on SECURITY_TOMOYO
21 help 21 help
22 This is the default value for maxima 22 This is the default value for maximal ACL entries
23 that are automatically appended into 23 that are automatically appended into policy at "learning mode".
24 Some programs access thousands of ob 24 Some programs access thousands of objects, so running
25 such programs in "learning mode" dul 25 such programs in "learning mode" dulls the system response
26 and consumes much memory. 26 and consumes much memory.
27 This is the safeguard for such progr 27 This is the safeguard for such programs.
28 28
29 config SECURITY_TOMOYO_MAX_AUDIT_LOG 29 config SECURITY_TOMOYO_MAX_AUDIT_LOG
30 int "Default maximal count for audit l 30 int "Default maximal count for audit log"
31 default 1024 31 default 1024
32 range 0 2147483647 32 range 0 2147483647
33 depends on SECURITY_TOMOYO 33 depends on SECURITY_TOMOYO
34 help 34 help
35 This is the default value for maxima 35 This is the default value for maximal entries for
36 audit logs that the kernel can hold 36 audit logs that the kernel can hold on memory.
37 You can read the log via /sys/kernel 37 You can read the log via /sys/kernel/security/tomoyo/audit.
38 If you don't need audit logs, you ma 38 If you don't need audit logs, you may set this value to 0.
39 39
40 config SECURITY_TOMOYO_OMIT_USERSPACE_LOADER 40 config SECURITY_TOMOYO_OMIT_USERSPACE_LOADER
41 bool "Activate without calling userspa 41 bool "Activate without calling userspace policy loader."
42 default n 42 default n
43 depends on SECURITY_TOMOYO 43 depends on SECURITY_TOMOYO
44 help 44 help
45 Say Y here if you want to activate a 45 Say Y here if you want to activate access control as soon as built-in
46 policy was loaded. This option will 46 policy was loaded. This option will be useful for systems where
47 operations which can lead to the hij 47 operations which can lead to the hijacking of the boot sequence are
48 needed before loading the policy. Fo 48 needed before loading the policy. For example, you can activate
49 immediately after loading the fixed 49 immediately after loading the fixed part of policy which will allow
50 only operations needed for mounting 50 only operations needed for mounting a partition which contains the
51 variant part of policy and verifying 51 variant part of policy and verifying (e.g. running GPG check) and
52 loading the variant part of policy. 52 loading the variant part of policy. Since you can start using
53 enforcing mode from the beginning, y 53 enforcing mode from the beginning, you can reduce the possibility of
54 hijacking the boot sequence. 54 hijacking the boot sequence.
55 55
56 config SECURITY_TOMOYO_POLICY_LOADER 56 config SECURITY_TOMOYO_POLICY_LOADER
57 string "Location of userspace policy l 57 string "Location of userspace policy loader"
58 default "/sbin/tomoyo-init" 58 default "/sbin/tomoyo-init"
59 depends on SECURITY_TOMOYO 59 depends on SECURITY_TOMOYO
60 depends on !SECURITY_TOMOYO_OMIT_USERS 60 depends on !SECURITY_TOMOYO_OMIT_USERSPACE_LOADER
61 help 61 help
62 This is the default pathname of poli 62 This is the default pathname of policy loader which is called before
63 activation. You can override this se 63 activation. You can override this setting via TOMOYO_loader= kernel
64 command line option. 64 command line option.
65 65
66 config SECURITY_TOMOYO_ACTIVATION_TRIGGER 66 config SECURITY_TOMOYO_ACTIVATION_TRIGGER
67 string "Trigger for calling userspace 67 string "Trigger for calling userspace policy loader"
68 default "/sbin/init" 68 default "/sbin/init"
69 depends on SECURITY_TOMOYO 69 depends on SECURITY_TOMOYO
70 depends on !SECURITY_TOMOYO_OMIT_USERS 70 depends on !SECURITY_TOMOYO_OMIT_USERSPACE_LOADER
71 help 71 help
72 This is the default pathname of acti 72 This is the default pathname of activation trigger.
73 You can override this setting via TO 73 You can override this setting via TOMOYO_trigger= kernel command line
74 option. For example, if you pass ini 74 option. For example, if you pass init=/bin/systemd option, you may
75 want to also pass TOMOYO_trigger=/bi 75 want to also pass TOMOYO_trigger=/bin/systemd option.
76 76
77 config SECURITY_TOMOYO_INSECURE_BUILTIN_SETTIN 77 config SECURITY_TOMOYO_INSECURE_BUILTIN_SETTING
78 bool "Use insecure built-in settings f 78 bool "Use insecure built-in settings for fuzzing tests."
79 default n 79 default n
80 depends on SECURITY_TOMOYO 80 depends on SECURITY_TOMOYO
81 select SECURITY_TOMOYO_OMIT_USERSPACE_ 81 select SECURITY_TOMOYO_OMIT_USERSPACE_LOADER
82 help 82 help
83 Enabling this option forces minimal 83 Enabling this option forces minimal built-in policy and disables
84 domain/program checks for run-time p 84 domain/program checks for run-time policy modifications. Please enable
85 this option only if this kernel is b 85 this option only if this kernel is built for doing fuzzing tests.
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.