selinux-refpolicy/refpolicy/policy/modules/system/init.if

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## <summary>System initialization programs (init and init scripts).</summary>
########################################
## <summary>
## Create a domain which can be started by init.
## </summary>
## <param name="domain">
## Type to be used as a domain.
## </param>
## <param name="entry_point">
## Type of the program to be used as an entry point to this domain.
## </param>
#
interface(`init_domain',`
gen_require(`
type init_t;
role system_r;
class fd use;
class fifo_file rw_file_perms;
class process sigchld;
')
domain_type($1)
domain_entry_file($1,$2)
role system_r types $1;
domain_auto_trans(init_t,$2,$1)
allow $1 init_t:fd use;
allow init_t $1:fd use;
allow $1 init_t:fifo_file rw_file_perms;
allow $1 init_t:process sigchld;
# Red Hat systems seem to have a stray
# fd open from the initrd
optional_policy(`distro_redhat',`
kernel_dontaudit_use_fd($1)
files_dontaudit_read_root_file($1)
')
')
########################################
## <summary>
## Create a domain for long running processes
## (daemons) which can be started by init scripts.
## </summary>
## <param name="domain">
## Type to be used as a domain.
## </param>
## <param name="entry_point">
## Type of the program to be used as an entry point to this domain.
## </param>
#
interface(`init_daemon_domain',`
gen_require(`
attribute direct_run_init, direct_init, direct_init_entry;
type initrc_t;
role system_r;
')
domain_type($1)
domain_entry_file($1,$2)
role system_r types $1;
ifdef(`direct_sysadm_daemon',`
domain_auto_trans(direct_run_init,$2,$1)
allow direct_run_init $1:fd use;
allow direct_run_init $1:process { noatsecure siginh rlimitinh };
allow $1 direct_run_init:fd use;
allow $1 direct_run_init:fifo_file rw_file_perms;
allow $1 direct_run_init:process sigchld;
typeattribute $1 direct_init;
typeattribute $2 direct_init_entry;
')
# Red Hat systems seem to have a stray
# fd open from the initrd
ifdef(`distro_redhat',`
kernel_dontaudit_use_fd($1)
files_dontaudit_read_root_file($1)
')
ifdef(`targeted_policy',`
# this regex is a hack, since it assumes there is a
# _t at the end of the domain type. If there is no _t
# at the end of the type, it returns empty!
bool regexp($1, `\(\w+\)_t', `\1_disable_trans') false;
if(! regexp($1, `\(\w+\)_t', `\1_disable_trans') ) {
domain_auto_trans(initrc_t,$2,$1)
allow initrc_t $1:fd use;
allow initrc_t $1:process { noatsecure siginh rlimitinh };
allow $1 initrc_t:fd use;
allow $1 initrc_t:fifo_file rw_file_perms;
allow $1 initrc_t:process sigchld;
} else {
can_exec(initrc_t,$2)
can_exec(direct_run_init,$2)
}
',`
domain_auto_trans(initrc_t,$2,$1)
allow initrc_t $1:fd use;
allow initrc_t $1:process { noatsecure siginh rlimitinh };
allow $1 initrc_t:fd use;
allow $1 initrc_t:fifo_file rw_file_perms;
allow $1 initrc_t:process sigchld;
')
optional_policy(`nscd.te',`
nscd_use_socket($1)
')
')
########################################
## <summary>
## Create a domain for short running processes
## which can be started by init scripts.
## </summary>
## <param name="domain">
## Type to be used as a domain.
## </param>
## <param name="entry_point">
## Type of the program to be used as an entry point to this domain.
## </param>
#
interface(`init_system_domain',`
gen_require(`
type initrc_t;
role system_r;
class fd use;
class fifo_file rw_file_perms;
class process sigchld;
')
domain_type($1)
domain_entry_file($1,$2)
role system_r types $1;
domain_auto_trans(initrc_t,$2,$1)
allow initrc_t $1:fd use;
allow $1 initrc_t:fd use;
allow $1 initrc_t:fifo_file rw_file_perms;
allow $1 initrc_t:process sigchld;
# Red Hat systems seem to have a stray
# fd open from the initrd
optional_policy(`distro_redhat',`
kernel_dontaudit_use_fd($1)
files_dontaudit_read_root_file($1)
')
')
########################################
#
# init_domtrans(domain)
#
interface(`init_domtrans',`
gen_require(`
type init_t, init_exec_t;
class process sigchld;
class fd use;
class fifo_file rw_file_perms;
')
domain_auto_trans($1,init_exec_t,init_t)
allow $1 init_t:fd use;
allow init_t $1:fd use;
allow init_t $1:fifo_file rw_file_perms;
allow init_t $1:process sigchld;
')
########################################
## <summary>
## Execute the init program in the caller domain.
## </summary>
## <param name="domain">
## Domain allowed access.
## </param>
#
interface(`init_exec',`
gen_require(`
type init_exec_t;
')
corecmd_search_sbin($1)
can_exec($1,init_exec_t)
')
########################################
#
# init_get_process_group(domain)
#
interface(`init_get_process_group',`
gen_require(`
type init_t;
class process getpgid;
')
allow $1 init_t:process getpgid;
')
########################################
#
# init_getattr_initctl(domain)
#
interface(`init_getattr_initctl',`
gen_require(`
type initctl_t;
class fifo_file getattr;
')
allow $1 initctl_t:fifo_file getattr;
')
########################################
#
# init_dontaudit_getattr_initctl(domain)
#
interface(`init_dontaudit_getattr_initctl',`
gen_require(`
type initctl_t;
class fifo_file getattr;
')
dontaudit $1 initctl_t:fifo_file getattr;
')
########################################
#
# init_write_initctl(domain)
#
interface(`init_write_initctl',`
gen_require(`
type initctl_t;
class fifo_file write;
')
dev_list_all_dev_nodes($1)
allow $1 initctl_t:fifo_file write;
')
########################################
#
# init_use_initctl(domain)
#
interface(`init_use_initctl',`
gen_require(`
type initctl_t;
class fifo_file rw_file_perms;
')
dev_list_all_dev_nodes($1)
allow $1 initctl_t:fifo_file rw_file_perms;
')
########################################
#
# init_dontaudit_use_initctl(domain)
#
interface(`init_dontaudit_use_initctl',`
gen_require(`
type initctl_t;
class fifo_file { read write };
')
dontaudit $1 initctl_t:fifo_file { read write };
')
########################################
## <summary>
## Send init a null signal.
## </summary>
## <param name="domain">
## Domain allowed access.
## </param>
#
interface(`init_signull',`
gen_require(`
type init_t;
class process signull;
')
allow $1 init_t:process signull;
')
########################################
## <summary>
## Send init a SIGCHLD signal.
## </summary>
## <param name="domain">
## Domain allowed access.
## </param>
#
interface(`init_sigchld',`
gen_require(`
type init_t;
class process sigchld;
')
allow $1 init_t:process sigchld;
')
########################################
#
# init_use_fd(domain)
#
interface(`init_use_fd',`
gen_require(`
type init_t;
class fd use;
')
allow $1 init_t:fd use;
')
########################################
#
# init_dontaudit_use_fd(domain)
#
interface(`init_dontaudit_use_fd',`
gen_require(`
type init_t;
class fd use;
')
dontaudit $1 init_t:fd use;
')
########################################
## <summary>
## Send UDP network traffic to init.
## </summary>
## <param name="domain">
## The type of the process performing this action.
## </param>
#
interface(`init_udp_sendto',`
gen_require(`
type init_t;
class udp_socket { sendto recvfrom };
')
allow $1 init_t:udp_socket sendto;
allow init_t $1:udp_socket recvfrom;
')
########################################
#
# init_domtrans_script(domain)
#
interface(`init_domtrans_script',`
gen_require(`
type initrc_t, initrc_exec_t;
class process sigchld;
class fd use;
class fifo_file rw_file_perms;
')
files_list_etc($1)
domain_auto_trans($1,initrc_exec_t,initrc_t)
allow $1 initrc_t:fd use;
allow initrc_t $1:fd use;
allow initrc_t $1:fifo_file rw_file_perms;
allow initrc_t $1:process sigchld;
')
########################################
## <summary>
## Start and stop daemon programs directly.
## </summary>
## <desc>
## <p>
## Start and stop daemon programs directly
## in the traditional "/etc/init.d/daemon start"
## style, and do not require run_init.
## </p>
## </desc>
## <param name="domain">
## The type of the process performing this action.
## </param>
## <param name="role">
## The role to be performing this action.
## </param>
## <param name="terminal">
## The type of the terminal of the user.
## </param>
#
interface(`init_run_daemon',`
gen_require(`
attribute direct_run_init, direct_init, direct_init_entry;
role system_r;
class chr_file rw_file_perms;
')
typeattribute $1 direct_run_init;
role_transition $2 direct_init_entry system_r;
dontaudit direct_init $3:chr_file rw_file_perms;
')
########################################
## <summary>
## Allow the specified domain to connect to
## init scripts with a unix domain stream socket.
## </summary>
## <param name="domain">
## Domain allowed access.
## </param>
#
interface(`init_unix_connect_script',`
gen_require(`
type initrc_t;
')
allow $1 initrc_t:unix_stream_socket connectto;
')
########################################
## <summary>
## Dont audit the specified domain connecting to
## init scripts with a unix domain stream socket.
## </summary>
## <param name="domain">
## Domain allowed access.
## </param>
#
interface(`init_dontaudit_unix_connect_script',`
gen_require(`
type initrc_t;
class unix_stream_socket connectto;
')
dontaudit $1 initrc_t:unix_stream_socket connectto;
')
########################################
## <summary>
## Read init scripts.
## </summary>
## <param name="domain">
## Domain allowed access.
## </param>
#
interface(`init_read_script',`
gen_require(`
type initrc_exec_t;
class file { getattr read };
')
files_list_etc($1)
allow $1 initrc_exec_t:file { getattr read };
')
########################################
#
# init_exec_script(domain)
#
interface(`init_exec_script',`
gen_require(`
type initrc_exec_t;
')
files_list_etc($1)
can_exec($1,initrc_exec_t)
')
########################################
## <summary>
## Read the process state (/proc/pid) of the init scripts.
## </summary>
## <param name="domain">
## The type of the process performing this action.
## </param>
#
interface(`init_read_script_process_state',`
gen_require(`
type initrc_t;
class dir r_dir_perms;
class file r_file_perms;
class lnk_file r_file_perms;
class process { getattr ptrace };
')
#FIXME: search proc dir
allow $1 initrc_t:dir r_dir_perms;
allow $1 initrc_t:{ file lnk_file } r_file_perms;
allow $1 initrc_t:process getattr;
# We need to suppress this denial because procps tries to access
# /proc/pid/environ and this now triggers a ptrace check in recent kernels
# (2.4 and 2.6). Might want to change procps to not do this, or only if
# running in a privileged domain.
dontaudit $1 initrc_t:process ptrace;
')
########################################
#
# init_use_script_fd(domain)
#
interface(`init_use_script_fd',`
gen_require(`
type initrc_t;
class fd use;
')
allow $1 initrc_t:fd use;
')
########################################
#
# init_dontaudit_use_script_fd(domain)
#
interface(`init_dontaudit_use_script_fd',`
gen_require(`
type initrc_t;
class fd use;
')
dontaudit $1 initrc_t:fd use;
')
########################################
#
# init_get_script_process_group(domain)
#
interface(`init_get_script_process_group',`
gen_require(`
type initrc_t;
class process getpgid;
')
allow $1 initrc_t:process getpgid;
')
########################################
## <summary>
## Read and write init script unnamed pipes.
## </summary>
## <param name="domain">
## The type of the process performing this action.
## </param>
#
interface(`init_rw_script_pipe',`
gen_require(`
type initrc_t;
class chr_file { read write };
')
allow $1 initrc_t:fifo_file { read write };
')
########################################
## <summary>
## Send UDP network traffic to init scripts.
## </summary>
## <param name="domain">
## The type of the process performing this action.
## </param>
#
interface(`init_udp_sendto_script',`
gen_require(`
type initrc_t;
class udp_socket { sendto recvfrom };
')
allow $1 initrc_t:udp_socket sendto;
allow initrc_t $1:udp_socket recvfrom;
')
########################################
## <summary>
## Allow the specified domain to connect to
## init scripts with a unix socket.
## </summary>
## <param name="domain">
## Domain allowed access.
## </param>
#
interface(`init_unix_connect_script',`
gen_require(`
type initrc_t;
')
allow $1 initrc_t:unix_stream_socket connectto;
')
########################################
## <summary>
## Read and write the init script pty.
## </summary>
## <desc>
## <p>
## Read and write the init script pty. This
## pty is generally opened by the open_init_pty
## portion of the run_init program so that the
## daemon does not require direct access to
## the administrator terminal.
## </p>
## </desc>
## <param name="domain">
## The type of the process performing this action.
## </param>
#
interface(`init_use_script_pty',`
gen_require(`
type initrc_devpts_t;
class chr_file rw_term_perms;
')
term_list_ptys($1)
allow $1 initrc_devpts_t:chr_file rw_term_perms;
')
########################################
## <summary>
## Read init scripts.
## </summary>
## <param name="domain">
## The type of the process performing this action.
## </param>
#
interface(`init_read_script_file',`
gen_require(`
type initrc_exec_t;
class file r_file_perms;
')
files_search_etc($1)
allow $1 initrc_exec_t:file r_file_perms;
')
########################################
#
# init_dontaudit_use_script_pty(domain)
#
interface(`init_dontaudit_use_script_pty',`
gen_require(`
type initrc_devpts_t;
class chr_file { read write ioctl };
')
dontaudit $1 initrc_devpts_t:chr_file { read write ioctl };
')
########################################
## <summary>
## Read and write init script temporary data.
## </summary>
## <param name="domain">
## The type of the process performing this action.
## </param>
#
interface(`init_rw_script_tmp_files',`
gen_require(`
type initrc_tmp_t;
')
files_search_tmp($1)
allow $1 initrc_tmp_t:file rw_file_perms;
')
########################################
## <summary>
## List the contents of an init script
## process id directory.
## </summary>
## <param name="domain">
## Domain allowed access.
## </param>
#
interface(`init_list_script_pids',`
gen_require(`
type initrc_var_run_t;
class dir r_dir_perms;
')
files_search_pids($1)
allow $1 initrc_var_run_t:dir r_dir_perms;
')
########################################
#
# init_read_script_pid(domain)
#
interface(`init_read_script_pid',`
gen_require(`
type initrc_var_run_t;
class file r_file_perms;
')
files_list_pids($1)
allow $1 initrc_var_run_t:file r_file_perms;
')
########################################
#
# init_dontaudit_write_script_pid(domain)
#
interface(`init_dontaudit_write_script_pid',`
gen_require(`
type initrc_var_run_t;
class file { write lock };
')
dontaudit $1 initrc_var_run_t:file { write lock };
')
########################################
#
# init_rw_script_pid(domain)
#
interface(`init_rw_script_pid',`
gen_require(`
type initrc_var_run_t;
class file rw_file_perms;
')
files_list_pids($1)
allow $1 initrc_var_run_t:file rw_file_perms;
')
########################################
#
# init_dontaudit_rw_script_pid(domain)
#
interface(`init_dontaudit_rw_script_pid',`
gen_require(`
type initrc_var_run_t;
class file rw_file_perms;
')
dontaudit $1 initrc_var_run_t:file { getattr read write append };
')