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From: "Sugar, David" <dsugar@tresys.com>
To: "selinux-refpolicy@vger.kernel.org"  <selinux-refpolicy@vger.kernel.org>
Subject: [PATCH 2/2 v2] Modify type for /etc/hostname
Date: Tue, 15 Jan 2019 03:20:29 +0000	[thread overview]
Message-ID: <20190115032018.28662-4-dsugar@tresys.com> (raw)
In-Reply-To: <20190115032018.28662-1-dsugar@tresys.com>

hostnamectl updates /etc/hostname
This change is setting the type for the file /etc/hostname to 
net_conf_t and granting hostnamectl permission to edit this file.
Note that hostnamectl is initially creating a new file .#hostname*
which is why the create permissions are requied.

type=AVC msg=audit(1547039052.041:563): avc:  denied  { write } for  pid=7564 comm="systemd-hostnam" name="etc" dev="dm-1" ino=101 scontext=system_u:system_r:systemd_hostnamed_t:s0 tcontext=system_u:object_r:etc_t:s0 tclass=dir permissive=1
type=AVC msg=audit(1547039052.041:563): avc:  denied  { add_name } for  pid=7564 comm="systemd-hostnam" name=".#hostnamezyqZ9t" scontext=system_u:system_r:systemd_hostnamed_t:s0 tcontext=system_u:object_r:etc_t:s0 tclass=dir permissive=1
type=AVC msg=audit(1547039052.041:563): avc:  denied  { create } for  pid=7564 comm="systemd-hostnam" name=".#hostnamezyqZ9t" scontext=system_u:system_r:systemd_hostnamed_t:s0 tcontext=system_u:object_r:etc_t:s0 tclass=file permissive=1
type=AVC msg=audit(1547039052.041:563): avc:  denied  { write } for  pid=7564 comm="systemd-hostnam" path="/etc/.#hostnamezyqZ9t" dev="dm-1" ino=1094726 scontext=system_u:system_r:systemd_hostnamed_t:s0 tcontext=system_u:object_r:etc_t:s0 tclass=file permissive=1
type=SYSCALL msg=audit(1547039052.041:563): arch=c000003e syscall=2 success=yes exit=8 a0=560d0bba34b0 a1=800c2 a2=180 a3=5c35f14c items=2 ppid=1 pid=7564 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="systemd-hostnam" exe="/usr/lib/systemd/systemd-hostnamed" subj=system_u:system_r:systemd_hostnamed_t:s0 key=(null)
type=AVC msg=audit(1547039052.041:564): avc:  denied  { setattr } for  pid=7564 comm="systemd-hostnam" name=".#hostnamezyqZ9t" dev="dm-1" ino=1094726 scontext=system_u:system_r:systemd_hostnamed_t:s0 tcontext=system_u:object_r:etc_t:s0 tclass=file permissive=1
type=SYSCALL msg=audit(1547039052.041:564): arch=c000003e syscall=91 success=yes exit=0 a0=8 a1=1a4 a2=fbad2484 a3=24 items=1 ppid=1 pid=7564 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="systemd-hostnam" exe="/usr/lib/systemd/systemd-hostnamed" subj=system_u:system_r:systemd_hostnamed_t:s0 key=(null)
type=AVC msg=audit(1547039052.041:565): avc:  denied  { remove_name } for  pid=7564 comm="systemd-hostnam" name=".#hostnamezyqZ9t" dev="dm-1" ino=1094726 scontext=system_u:system_r:systemd_hostnamed_t:s0 tcontext=system_u:object_r:etc_t:s0 tclass=dir permissive=1
type=AVC msg=audit(1547039052.041:565): avc:  denied  { rename } for  pid=7564 comm="systemd-hostnam" name=".#hostnamezyqZ9t" dev="dm-1" ino=1094726 scontext=system_u:system_r:systemd_hostnamed_t:s0 tcontext=system_u:object_r:etc_t:s0 tclass=file permissive=1
type=AVC msg=audit(1547039052.041:565): avc:  denied  { unlink } for  pid=7564 comm="systemd-hostnam" name="hostname" dev="dm-1" ino=1094712 scontext=system_u:system_r:systemd_hostnamed_t:s0 tcontext=system_u:object_r:etc_t:s0 tclass=file permissive=1

Signed-off-by: Dave Sugar <dsugar@tresys.com>
---
 policy/modules/system/sysnetwork.fc | 1 +
 policy/modules/system/systemd.te    | 3 +++
 2 files changed, 4 insertions(+)

diff --git a/policy/modules/system/sysnetwork.fc b/policy/modules/system/sysnetwork.fc
index cd528938..1e5432a4 100644
--- a/policy/modules/system/sysnetwork.fc
+++ b/policy/modules/system/sysnetwork.fc
@@ -18,6 +18,7 @@ ifdef(`distro_debian',`
 /etc/hosts		--	gen_context(system_u:object_r:net_conf_t,s0)
 /etc/hosts\.allow.*	--	gen_context(system_u:object_r:net_conf_t,s0)
 /etc/hosts\.deny.*	--	gen_context(system_u:object_r:net_conf_t,s0)
+/etc/hostname		--	gen_context(system_u:object_r:net_conf_t,s0)
 /etc/denyhosts.*	--	gen_context(system_u:object_r:net_conf_t,s0)
 /etc/resolv\.conf.*	--	gen_context(system_u:object_r:net_conf_t,s0)
 /etc/yp\.conf.*		--	gen_context(system_u:object_r:net_conf_t,s0)
diff --git a/policy/modules/system/systemd.te b/policy/modules/system/systemd.te
index abcc52f5..75ee4310 100644
--- a/policy/modules/system/systemd.te
+++ b/policy/modules/system/systemd.te
@@ -325,6 +325,9 @@ files_read_etc_files(systemd_hostnamed_t)
 
 seutil_read_file_contexts(systemd_hostnamed_t)
 
+sysnet_etc_filetrans_config(systemd_hostnamed_t)
+sysnet_manage_config(systemd_hostnamed_t)
+
 systemd_log_parse_environment(systemd_hostnamed_t)
 
 optional_policy(`
-- 
2.20.1


  parent reply	other threads:[~2019-01-15  3:20 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-01-15  3:20 [PATCH] Interface to read and write the mount_runtime_t directory Sugar, David
2019-01-15  3:20 ` [PATCH 1/2] Interface with systemd_hostnamed over dbus to set hostname Sugar, David
2019-01-16 23:12   ` Chris PeBenito
2019-01-15  3:20 ` Sugar, David [this message]
2019-01-16 23:13   ` [PATCH 2/2 v2] Modify type for /etc/hostname Chris PeBenito
2019-01-15  3:20 ` [PATCH] label journald configuraiton files syslog_conf_t Sugar, David
2019-01-16 23:12   ` Chris PeBenito
2019-01-16 23:06 ` [PATCH] Interface to read and write the mount_runtime_t directory Chris PeBenito
2019-01-22 14:47   ` Sugar, David

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