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commit: fc0dd40ee53f5a1d45ee160db2d3d1e6727bff90 |
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Author: Kenton Groombridge <me <AT> concord <DOT> sh> |
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AuthorDate: Wed Nov 10 17:58:42 2021 +0000 |
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Commit: Jason Zaman <perfinion <AT> gentoo <DOT> org> |
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CommitDate: Thu Mar 31 02:40:53 2022 +0000 |
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URL: https://gitweb.gentoo.org/proj/hardened-refpolicy.git/commit/?id=fc0dd40e |
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|
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files, init: allow init to remount filesystems mounted on /boot |
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|
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The context= mount option can be used to label, for example, a DOS |
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filesystem mounted on boot to be boot_t instead of dosfs_t. Explicitly |
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allow init (systemd) to remount boot_t filesystems so that options like |
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ProtectSystem=full work properly. |
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|
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Signed-off-by: Kenton Groombridge <me <AT> concord.sh> |
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Signed-off-by: Jason Zaman <perfinion <AT> gentoo.org> |
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|
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policy/modules/kernel/files.if | 18 ++++++++++++++++++ |
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policy/modules/system/init.te | 1 + |
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2 files changed, 19 insertions(+) |
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|
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diff --git a/policy/modules/kernel/files.if b/policy/modules/kernel/files.if |
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index ea29fef3..baedb52e 100644 |
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--- a/policy/modules/kernel/files.if |
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+++ b/policy/modules/kernel/files.if |
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@@ -2238,6 +2238,24 @@ interface(`files_mounton_root',` |
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allow $1 root_t:dir mounton; |
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') |
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|
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+######################################## |
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+## <summary> |
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+## Remount a filesystem mounted on /boot. |
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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(`files_remount_boot',` |
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+ gen_require(` |
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+ type boot_t; |
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+ ') |
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+ |
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+ allow $1 boot_t:filesystem remount; |
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+') |
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+ |
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######################################## |
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## <summary> |
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## Get attributes of the /boot directory. |
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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 3f1c7d20..6e1baef9 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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@@ -417,6 +417,7 @@ ifdef(`init_systemd',` |
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files_mounton_tmp(init_t) |
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files_manage_urandom_seed(init_t) |
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files_read_boot_files(initrc_t) |
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+ files_remount_boot(init_t) |
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files_relabel_all_lock_dirs(init_t) |
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files_search_all(init_t) |
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files_unmount_all_file_type_fs(init_t) |
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