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commit: bac1f46765f49a73cdfb5a482f45f3a83487ee06 |
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Author: Chris PeBenito <cpebenito <AT> tresys <DOT> com> |
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AuthorDate: Tue Oct 20 17:23:35 2015 +0000 |
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Commit: Sven Vermeulen <swift <AT> gentoo <DOT> org> |
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CommitDate: Mon Oct 26 03:55:45 2015 +0000 |
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URL: https://gitweb.gentoo.org/proj/hardened-refpolicy.git/commit/?id=bac1f467 |
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|
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Add sysfs_types attribute. |
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|
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Collect all types used to label sysfs entries. |
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|
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policy/modules/kernel/devices.if | 20 ++++++++++++++++++++ |
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policy/modules/kernel/devices.te | 5 +++-- |
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policy/modules/system/init.te | 1 + |
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3 files changed, 24 insertions(+), 2 deletions(-) |
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|
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diff --git a/policy/modules/kernel/devices.if b/policy/modules/kernel/devices.if |
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index a052db5..591b932 100644 |
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--- a/policy/modules/kernel/devices.if |
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+++ b/policy/modules/kernel/devices.if |
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@@ -4130,6 +4130,26 @@ interface(`dev_rw_sysfs',` |
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|
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######################################## |
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## <summary> |
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+## Relabel from/to all sysfs types. |
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+## </summary> |
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+## <param name="domain"> |
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+## <summary> |
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+## Domain allowed access. |
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+## </summary> |
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+## </param> |
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+# |
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+interface(`dev_relabel_all_sysfs',` |
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+ gen_require(` |
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+ attribute sysfs_types; |
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+ ') |
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+ |
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+ allow $1 sysfs_types:dir { list_dir_perms relabel_dir_perms }; |
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+ allow $1 sysfs_types:file relabel_file_perms; |
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+ allow $1 sysfs_types:lnk_file relabel_lnk_file_perms; |
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+') |
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+ |
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+######################################## |
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+## <summary> |
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## Read and write the TPM device. |
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## </summary> |
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## <param name="domain"> |
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|
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diff --git a/policy/modules/kernel/devices.te b/policy/modules/kernel/devices.te |
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index e5bcfcd..9274a82 100644 |
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--- a/policy/modules/kernel/devices.te |
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+++ b/policy/modules/kernel/devices.te |
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@@ -9,6 +9,7 @@ attribute device_node; |
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attribute memory_raw_read; |
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attribute memory_raw_write; |
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attribute devices_unconfined_type; |
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+attribute sysfs_types; |
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|
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# |
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# device_t is the type of /dev. |
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@@ -62,7 +63,7 @@ dev_node(cpu_device_t) |
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# |
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# /sys/devices/system/cpu/online device |
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# |
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-type cpu_online_t; |
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+type cpu_online_t, sysfs_types; |
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files_type(cpu_online_t) |
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dev_associate_sysfs(cpu_online_t) |
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|
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@@ -229,7 +230,7 @@ dev_node(sound_device_t) |
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# |
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# sysfs_t is the type for the /sys pseudofs |
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# |
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-type sysfs_t; |
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+type sysfs_t, sysfs_types; |
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files_mountpoint(sysfs_t) |
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fs_xattr_type(sysfs_t) |
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genfscon sysfs / gen_context(system_u:object_r:sysfs_t,s0) |
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|
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diff --git a/policy/modules/system/init.te b/policy/modules/system/init.te |
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index 79400f2..8c9cffa 100644 |
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--- a/policy/modules/system/init.te |
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+++ b/policy/modules/system/init.te |
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@@ -224,6 +224,7 @@ ifdef(`init_systemd',` |
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dev_create_generic_dirs(init_t) |
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dev_manage_input_dev(init_t) |
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dev_relabel_all_dev_nodes(init_t) |
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+ dev_relabel_all_sysfs(init_t) |
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dev_read_urand(init_t) |
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dev_write_kmsg(init_t) |
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