[refpolicy] [PATCH 1/1-v2] policy for systemd-networkd

Chris PeBenito pebenito at ieee.org
Wed Oct 11 22:34:01 UTC 2017


On 10/11/2017 10:59 AM, David Sugar via refpolicy wrote:
> Policy needed for systemd-networkd to function.  This is based on a patch from krzysztof.a.nowicki at gmail.com that was submitted back in May (I talked to him via email a while ago about me picking up the patch).  He was too busy to update and I needed to get it working.
> 
> I am pretty sure I updated everything mentioned in previous feedback, please comment if something is still off and I will revise.
> 
> Signed-off-by: Dave Sugar <dsugar at tresys.com>
> ---
>   policy/modules/system/init.te       |   1 +
>   policy/modules/system/sysnetwork.fc |   2 +
>   policy/modules/system/systemd.fc    |   3 +
>   policy/modules/system/systemd.if    | 115 ++++++++++++++++++++++++++++++++++++
>   policy/modules/system/systemd.te    |  70 ++++++++++++++++++++++
>   5 files changed, 191 insertions(+)
> 
> diff --git a/policy/modules/system/init.te b/policy/modules/system/init.te
> index dbc31d1d..aa875cee 100644
> --- a/policy/modules/system/init.te
> +++ b/policy/modules/system/init.te
> @@ -329,6 +329,7 @@ ifdef(`init_systemd',`
>   	systemd_relabelto_tmpfiles_conf_files(init_t)
>   	systemd_relabelto_journal_dirs(init_t)
>   	systemd_relabelto_journal_files(init_t)
> +	systemd_rw_networkd_netlink_route_sockets(init_t)
>   
>   	term_create_devpts_dirs(init_t)
>   
> diff --git a/policy/modules/system/sysnetwork.fc b/policy/modules/system/sysnetwork.fc
> index ae4fbea2..91fb5160 100644
> --- a/policy/modules/system/sysnetwork.fc
> +++ b/policy/modules/system/sysnetwork.fc
> @@ -24,6 +24,8 @@ ifdef(`distro_debian',`
>   /etc/dhcp3(/.*)?		gen_context(system_u:object_r:dhcp_etc_t,s0)
>   /etc/dhcp3?/dhclient.*		gen_context(system_u:object_r:dhcp_etc_t,s0)
>   
> +/etc/systemd/network(/.*)?	gen_context(system_u:object_r:net_conf_t,s0)
> +
>   ifdef(`distro_redhat',`
>   /etc/sysconfig/network-scripts/.*resolv\.conf -- gen_context(system_u:object_r:net_conf_t,s0)
>   /etc/sysconfig/networking(/.*)? gen_context(system_u:object_r:net_conf_t,s0)
> diff --git a/policy/modules/system/systemd.fc b/policy/modules/system/systemd.fc
> index 57944e1d..56e9bc13 100644
> --- a/policy/modules/system/systemd.fc
> +++ b/policy/modules/system/systemd.fc
> @@ -23,6 +23,7 @@
>   /usr/lib/systemd/systemd-localed	--	gen_context(system_u:object_r:systemd_locale_exec_t,s0)
>   /usr/lib/systemd/systemd-logind		--	gen_context(system_u:object_r:systemd_logind_exec_t,s0)
>   /usr/lib/systemd/systemd-machined	--	gen_context(system_u:object_r:systemd_machined_exec_t,s0)
> +/usr/lib/systemd/systemd-networkd	--	gen_context(system_u:object_r:systemd_networkd_exec_t,s0)
>   /usr/lib/systemd/systemd-resolved	--	gen_context(system_u:object_r:systemd_resolved_exec_t,s0)
>   /usr/lib/systemd/systemd-user-sessions	--	gen_context(system_u:object_r:systemd_sessions_exec_t,s0)
>   
> @@ -36,6 +37,7 @@
>   /usr/lib/systemd/system/[^/]*suspend.*	--	gen_context(system_u:object_r:power_unit_t,s0)
>   /usr/lib/systemd/system/systemd-backlight.*	--	gen_context(system_u:object_r:systemd_backlight_unit_t,s0)
>   /usr/lib/systemd/system/systemd-binfmt.*	--	gen_context(system_u:object_r:systemd_binfmt_unit_t,s0)
> +/usr/lib/systemd/system/systemd-networkd.*		gen_context(system_u:object_r:systemd_networkd_unit_t,s0)
>   
>   /var/lib/systemd/backlight(/.*)?	gen_context(system_u:object_r:systemd_backlight_var_lib_t,s0)
>   /var/lib/systemd/coredump(/.*)?	gen_context(system_u:object_r:systemd_coredump_var_lib_t,s0)
> @@ -52,6 +54,7 @@
>   /run/systemd/inhibit(/.*)?	gen_context(system_u:object_r:systemd_logind_var_run_t,s0)
>   /run/systemd/nspawn(/.*)?	gen_context(system_u:object_r:systemd_nspawn_var_run_t,s0)
>   /run/systemd/machines(/.*)?	gen_context(system_u:object_r:systemd_machined_var_run_t,s0)
> +/run/systemd/netif(/.*)?	gen_context(system_u:object_r:systemd_networkd_var_run_t,s0)
>   
>   /run/tmpfiles\.d	-d	gen_context(system_u:object_r:systemd_tmpfiles_conf_t,s0)
>   /run/tmpfiles\.d/.*		<<none>>
> diff --git a/policy/modules/system/systemd.if b/policy/modules/system/systemd.if
> index 69669a1a..8f914837 100644
> --- a/policy/modules/system/systemd.if
> +++ b/policy/modules/system/systemd.if
> @@ -390,6 +390,121 @@ interface(`systemd_relabelto_journal_files',`
>   
>   ########################################
>   ## <summary>
> +##	Allow domain to read systemd_networkd_t unit files
> +## </summary>
> +## <param name="domain">
> +##	<summary>
> +##	Domain allowed access.
> +##	 </summary>
> +## </param>
> +#
> +interface(`systemd_read_networkd_units',`
> +	gen_require(`
> +		type systemd_networkd_t;
> +	')
> +
> +	init_search_units($1)
> +	list_dirs_pattern($1, systemd_networkd_unit_t, systemd_networkd_unit_t)

I missed this the first time, but there are no systemd_networkd_unit_t 
dirs (nor should there be) so the list_dirs_pattern here, and the 
manage_dirs_pattern in the below interface are excessive.


> +	read_files_pattern($1, systemd_networkd_unit_t, systemd_networkd_unit_t)
> +')
> +
> +########################################
> +## <summary>
> +##	Allow domain to create/manage systemd_networkd_t unit files
> +## </summary>
> +## <param name="domain">
> +##	<summary>
> +##	Domain allowed access.
> +##	 </summary>
> +## </param>
> +#
> +interface(`systemd_manage_networkd_units',`
> +	gen_require(`
> +		type systemd_networkd_unit_t;
> +	')
> +
> +	init_search_units($1)
> +	manage_dirs_pattern($1, systemd_networkd_unit_t, systemd_networkd_unit_t)
> +	manage_files_pattern($1, systemd_networkd_unit_t, systemd_networkd_unit_t)
> +')


-- 
Chris PeBenito


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