[refpolicy] services_nut.patch

[stefan@seekline.net (Stefan Schulze Frielinghaus)]

On Mon, 2009-12-21 at 11:14 +0100, Stefan Schulze Frielinghaus wrote:
> On Fri, 2009-12-18 at 08:53 -0500, Christopher J. PeBenito wrote:
> [...]
> > Was there any resolution on this?
> 
> Yes, but I had no physical access to my UPS for the last two weeks. At
> the end of this week I will have physical access again and then I will
> check that the policy is really working fine. So I expect a
> tested/working policy in one to two weeks.

I take the discussion back on list. Miroslav, from the latest policy I
did not change anything except I removed the duplicate policies for the
cgi scripts and uncommented the *_ups_port() stuff.

I'm fine with the attached policy (tested several times including a
shutdown and cgi services). Is the policy OK for you too?
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/etc/ups(/.*)?          gen_context(system_u:object_r:nut_conf_t,s0)

/sbin/upsdrvctl     --  gen_context(system_u:object_r:nut_upsdrvctl_exec_t,s0)

/usr/sbin/upsd      --  gen_context(system_u:object_r:nut_upsd_exec_t,s0)
/usr/sbin/upsmon    --  gen_context(system_u:object_r:nut_upsmon_exec_t,s0)

/var/run/nut(/.*)?                  gen_context(system_u:object_r:nut_var_run_t,s0)

/var/www/nut-cgi-bin/upsimage\.cgi  --  gen_context(system_u:object_r:httpd_nutups_cgi_script_exec_t,s0)
/var/www/nut-cgi-bin/upsset\.cgi    --  gen_context(system_u:object_r:httpd_nutups_cgi_script_exec_t,s0)
/var/www/nut-cgi-bin/upsstats\.cgi  --  gen_context(system_u:object_r:httpd_nutups_cgi_script_exec_t,s0)
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## <summary>SELinux policy for nut - Network UPS Tools </summary>
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policy_module(nut, 1.0.0)

########################################
#
# Declarations
#

type nut_upsd_t;
type nut_upsd_exec_t;
init_daemon_domain(nut_upsd_t, nut_upsd_exec_t)

type nut_upsmon_t;
type nut_upsmon_exec_t;
init_daemon_domain(nut_upsmon_t, nut_upsmon_exec_t)

type nut_upsdrvctl_t;
type nut_upsdrvctl_exec_t;
init_daemon_domain(nut_upsdrvctl_t, nut_upsdrvctl_exec_t)

# conf files
type nut_conf_t;
files_config_file(nut_conf_t)

# pid files
type nut_var_run_t;
files_pid_file(nut_var_run_t)

########################################
#
# Local policy for upsd
#

allow nut_upsd_t self:capability { setgid setuid };

allow nut_upsd_t self:unix_dgram_socket { create_socket_perms sendto };
allow nut_upsd_t self:tcp_socket connected_stream_socket_perms;

allow nut_upsd_t nut_upsdrvctl_t:unix_stream_socket connectto;

read_files_pattern(nut_upsd_t, nut_conf_t, nut_conf_t)

# pid file
manage_files_pattern(nut_upsd_t, nut_var_run_t, nut_var_run_t)
manage_dirs_pattern(nut_upsd_t, nut_var_run_t, nut_var_run_t)
manage_sock_files_pattern(nut_upsd_t, nut_var_run_t, nut_var_run_t)
files_pid_filetrans(nut_upsd_t, nut_var_run_t, { file sock_file })

corenet_tcp_bind_ups_port(nut_upsd_t)
corenet_tcp_bind_generic_port(nut_upsd_t)
corenet_tcp_bind_all_nodes(nut_upsd_t)

kernel_read_kernel_sysctls(nut_upsd_t)

# /etc/nsswitch.conf
auth_use_nsswitch(nut_upsd_t)

files_read_usr_files(nut_upsd_t)

logging_send_syslog_msg(nut_upsd_t)

miscfiles_read_localization(nut_upsd_t)

########################################
#
# Local policy for upsmon
#

allow nut_upsmon_t self:capability { dac_override dac_read_search setgid setuid };

allow nut_upsmon_t self:fifo_file rw_fifo_file_perms;
allow nut_upsmon_t self:unix_dgram_socket { create_socket_perms sendto };
allow nut_upsmon_t self:tcp_socket create_socket_perms;

read_files_pattern(nut_upsmon_t, nut_conf_t, nut_conf_t)

# pid file
manage_files_pattern(nut_upsmon_t, nut_var_run_t, nut_var_run_t)
manage_dirs_pattern(nut_upsmon_t, nut_var_run_t, nut_var_run_t)
files_pid_filetrans(nut_upsmon_t, nut_var_run_t, { file })

corenet_tcp_connect_ups_port(upsmon_t)
corenet_tcp_connect_generic_port(nut_upsmon_t)

corecmd_exec_bin(nut_upsmon_t)
corecmd_exec_shell(nut_upsmon_t)

kernel_read_kernel_sysctls(nut_upsmon_t)
kernel_read_system_state(nut_upsmon_t)

# Creates /etc/killpower
files_manage_etc_runtime_files(nut_upsmon_t)
files_etc_filetrans_etc_runtime(nut_upsmon_t, file)

auth_use_nsswitch(nut_upsmon_t)

files_search_usr(nut_upsmon_t)

logging_send_syslog_msg(nut_upsmon_t)

miscfiles_read_localization(nut_upsmon_t)

# /usr/bin/wall
term_write_all_terms(nut_upsmon_t)

# upsmon runs shutdown, probably need a shutdown domain
init_rw_utmp(nut_upsmon_t)
init_telinit(nut_upsmon_t)

########################################
#
# Local policy for upsdrvctl
#

allow nut_upsdrvctl_t self:capability { dac_override kill setgid setuid };
allow nut_upsdrvctl_t self:process { sigchld signal signull };
allow nut_upsdrvctl_t self:fd use;

allow nut_upsdrvctl_t self:fifo_file rw_fifo_file_perms;
allow nut_upsdrvctl_t self:unix_dgram_socket { create_socket_perms sendto };
allow nut_upsdrvctl_t self:udp_socket create_socket_perms;

read_files_pattern(nut_upsdrvctl_t, nut_conf_t, nut_conf_t)

# pid file
manage_files_pattern(nut_upsdrvctl_t, nut_var_run_t, nut_var_run_t)
manage_dirs_pattern(nut_upsdrvctl_t, nut_var_run_t, nut_var_run_t)
manage_sock_files_pattern(nut_upsdrvctl_t, nut_var_run_t, nut_var_run_t)
files_pid_filetrans(nut_upsdrvctl_t, nut_var_run_t, { file sock_file })

# /sbin/upsdrvctl executes other drivers
corecmd_exec_bin(nut_upsdrvctl_t)
corecmd_exec_sbin(nut_upsdrvctl_t)

kernel_read_kernel_sysctls(nut_upsdrvctl_t)

# /etc/nsswitch.conf
auth_use_nsswitch(nut_upsdrvctl_t)

dev_read_urand(nut_upsdrvctl_t)
dev_rw_generic_usb_dev(nut_upsdrvctl_t)

term_use_unallocated_ttys(nut_upsdrvctl_t)

logging_send_syslog_msg(nut_upsdrvctl_t)

miscfiles_read_localization(nut_upsdrvctl_t)

init_sigchld(nut_upsdrvctl_t)

#######################################
#
# Local policy for upscgi scripts
# requires httpd_enable_cgi and httpd_can_network_connect
#

optional_policy(`
    apache_content_template(nutups_cgi)

    read_files_pattern(httpd_nutups_cgi_script_t, nut_conf_t, nut_conf_t)

    corenet_tcp_connect_ups_port(httpd_nutups_cgi_script_t)
')