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From: "Sugar, David" <dsugar@tresys.com>
To: "selinux-refpolicy@vger.kernel.org"  <selinux-refpolicy@vger.kernel.org>
Subject: [PATCH v2] Allow systemd to getattr configfile
Date: Mon, 13 Jan 2020 18:27:11 +0000
Message-ID: <20200113182658.3502291-1-dsugar@tresys.com> (raw)

v2 update - rework, creating interface 'init_systemd_conditional'
as suggested.  This grants getattr access to the type provided.

Signed-off-by: Dave Sugar <dsugar@tresys.com>
---
 policy/modules/services/chronyd.te |  2 ++
 policy/modules/system/init.if      | 26 ++++++++++++++++++++++++++
 2 files changed, 28 insertions(+)

diff --git a/policy/modules/services/chronyd.te b/policy/modules/services/chronyd.te
index 5e680d39..7ae8bb5a 100644
--- a/policy/modules/services/chronyd.te
+++ b/policy/modules/services/chronyd.te
@@ -102,6 +102,8 @@ miscfiles_read_localization(chronyd_t)
 chronyd_dgram_send_cli(chronyd_t)
 chronyd_read_config(chronyd_t)
 
+init_systemd_conditional(chronyd_conf_t)
+
 optional_policy(`
 	gpsd_rw_shm(chronyd_t)
 ')
diff --git a/policy/modules/system/init.if b/policy/modules/system/init.if
index 62ab4da8..5a0a78bf 100644
--- a/policy/modules/system/init.if
+++ b/policy/modules/system/init.if
@@ -3232,6 +3232,32 @@ interface(`init_reload_all_units',`
 	allow $1 { init_script_file_type systemdunit }:service reload;
 ')
 
+
+########################################
+## <summary>
+##      Allow init_t getattr permissions.  Generally
+##      needed for types that are used in a Condition
+##      predicate.
+## </summary>
+## <param name="domain">
+##      <summary>
+##      type accessible by init_t
+##      </summary>
+## </param>
+#
+interface(`init_systemd_conditional',`
+	gen_require(`
+		type init_t;
+	')
+	allow init_t $1:dir search_dir_perms;
+	allow init_t $1:lnk_file read_lnk_file_perms;
+	allow init_t $1:fifo_file getattr_fifo_file_perms;
+	allow init_t $1:sock_file getattr_sock_file_perms;
+	allow init_t $1:file getattr_file_perms;
+	allow init_t $1:blk_file getattr_blk_file_perms;
+	allow init_t $1:chr_file getattr_chr_file_perms;
+')
+
 ########################################
 ## <summary>
 ##      Allow unconfined access to send instructions to init
-- 
2.24.1


             reply index

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-13 18:27 Sugar, David [this message]
2020-01-21 13:42 ` Chris PeBenito
2020-01-21 14:22   ` Sugar, David
2020-01-22 10:41     ` Chris PeBenito

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