selinux-policy/policy/modules/kernel/corecommands.if

## <summary>
## Core policy for shells, and generic programs
## in /bin, /sbin, /usr/bin, and /usr/sbin.
## </summary>
## <required val="true">
##	Contains the base bin and sbin directory types
##	which need to be searched for the kernel to
##	run init.
## </required>

########################################
## <summary>
##	Make the specified type usable for files
##	that are exectuables, such as binary programs.
##	This does not include shared libraries.
## </summary>
## <param name="type">
##	<summary>
##	Type to be used for files.
##	</summary>
## </param>
#
interface(`corecmd_executable_file',`
	gen_require(`
		attribute exec_type;
	')

	typeattribute $1 exec_type;

	files_type($1)
')

########################################
## <summary>
##	Create a aliased type to generic bin files.
## </summary>
## <desc>
##	<p>
##	Create a aliased type to generic bin files.
##	</p>
##	<p>
##	This is added to support targeted policy.  Its
##	use should be limited.  It has no effect
##	on the strict policy.
##	</p>
## </desc>
## <param name="domain">
##	<summary>
##	Alias type for bin_t.
##	</summary>
## </param>
#
interface(`corecmd_bin_alias',`
	ifdef(`targeted_policy',`
		gen_require(`
			type bin_t;
		')

		typealias bin_t alias $1;
	',`
		refpolicywarn(`$0($*) has no effect in strict policy.')
	')
')

########################################
## <summary>
##	Make general progams in bin an entrypoint for
##	the specified domain.
## </summary>
## <param name="domain">
##	<summary>
##	The domain for which bin_t is an entrypoint.
##	</summary>
## </param>
#
interface(`corecmd_bin_entry_type',`
	gen_require(`
		type bin_t;
	')

	domain_entry_file($1,bin_t)
')

########################################
## <summary>
##	Make general progams in sbin an entrypoint for
##	the specified domain.
## </summary>
## <param name="domain">
##	<summary>
##	The domain for which sbin programs are an entrypoint.
##	</summary>
## </param>
#
interface(`corecmd_sbin_entry_type',`
	gen_require(`
		type sbin_t;
	')

	domain_entry_file($1,sbin_t)
')

########################################
## <summary>
##	Make the shell an entrypoint for the specified domain.
## </summary>
## <param name="domain">
##	<summary>
##	The domain for which the shell is an entrypoint.
##	</summary>
## </param>
#
interface(`corecmd_shell_entry_type',`
	gen_require(`
		type shell_exec_t;
	')

	domain_entry_file($1,shell_exec_t)
')

########################################
## <summary>
##	Search the contents of bin directories.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`corecmd_search_bin',`
	gen_require(`
		type bin_t;
	')

	allow $1 bin_t:dir search;
')

########################################
## <summary>
##	List the contents of bin directories.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`corecmd_list_bin',`
	gen_require(`
		type bin_t;
	')

	allow $1 bin_t:dir r_dir_perms;
')

########################################
## <summary>
##	Get the attributes of files in bin directories.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`corecmd_getattr_bin_files',`
	gen_require(`
		type bin_t;
	')

	allow $1 bin_t:file getattr;
')

########################################
## <summary>
##	Read files in bin directories.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`corecmd_read_bin_files',`
	gen_require(`
		type bin_t;
	')

	allow $1 bin_t:dir search;
	allow $1 bin_t:file r_file_perms;
')

########################################
## <summary>
##	Read symbolic links in bin directories.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`corecmd_read_bin_symlinks',`
	gen_require(`
		type bin_t;
	')

	allow $1 bin_t:dir search;
	allow $1 bin_t:lnk_file r_file_perms;
')

########################################
## <summary>
##	Read pipes in bin directories.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`corecmd_read_bin_pipes',`
	gen_require(`
		type bin_t;
	')

	allow $1 bin_t:dir search;
	allow $1 bin_t:fifo_file r_file_perms;
')

########################################
## <summary>
##	Read named sockets in bin directories.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`corecmd_read_bin_sockets',`
	gen_require(`
		type bin_t;
	')

	allow $1 bin_t:dir search;
	allow $1 bin_t:sock_file r_file_perms;
')

########################################
## <summary>
##	Execute generic programs in bin directories,
##	in the caller domain.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`corecmd_exec_bin',`
	gen_require(`
		type bin_t;
	')

	allow $1 bin_t:dir r_dir_perms;
	allow $1 bin_t:lnk_file r_file_perms;
	can_exec($1,bin_t)

')

########################################
## <summary>
##	Create, read, write, and delete bin files.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`corecmd_manage_bin_files',`
	gen_require(`
		type bin_t;
	')

	allow $1 bin_t:dir rw_dir_perms;
	allow $1 bin_t:file manage_file_perms;
')

########################################
## <summary>
##	Relabel to and from the bin type.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`corecmd_relabel_bin_files',`
	gen_require(`
		type bin_t;
	')

	allow $1 bin_t:dir search_dir_perms;
	allow $1 bin_t:file { relabelfrom relabelto };
')

########################################
## <summary>
##	Mmap a bin file as executable.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`corecmd_mmap_bin_files',`
	gen_require(`
		type bin_t;
	')

	allow $1 bin_t:dir search_dir_perms;
	allow $1 bin_t:file { getattr read execute };
')

########################################
## <summary>
##	Execute a file in a bin directory
##	in the specified domain but do not
##	do it automatically. This is an explicit
##	transition, requiring the caller to use setexeccon().
## </summary>
## <desc>
##	<p>
##	Execute a file in a bin directory
##	in the specified domain.  This allows
##	the specified domain to execute any file
##	on these filesystems in the specified
##	domain.  This is not suggested.
##	</p>
##	<p>
##	No interprocess communication (signals, pipes,
##	etc.) is provided by this interface since
##	the domains are not owned by this module.
##	</p>
##	<p>
##	This interface was added to handle
##	the userhelper policy.
##	</p>
## </desc>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
## <param name="target_domain">
##	<summary>
##	The type of the new process.
##	</summary>
## </param>
#
interface(`corecmd_bin_spec_domtrans',`
	gen_require(`
		type bin_t;
	')

	allow $1 bin_t:dir search;
	allow $1 bin_t:lnk_file { getattr read };

	domain_trans($1,bin_t,$2)
')

########################################
## <summary>
##      Execute a file in a bin directory
##      in the specified domain.
## </summary>
## <desc>
##      <p>
##      Execute a file in a bin directory
##      in the specified domain.  This allows
##      the specified domain to execute any file
##      on these filesystems in the specified
##      domain.  This is not suggested.
##      </p>
##      <p>
##      No interprocess communication (signals, pipes,
##      etc.) is provided by this interface since
##      the domains are not owned by this module.
##      </p>
##      <p>
##      This interface was added to handle
##      the ssh-agent policy.
##      </p>
## </desc>
## <param name="domain">
##	<summary>
##      Domain allowed access.
##	</summary>
## </param>
## <param name="target_domain">
##	<summary>
##      The type of the new process.
##	</summary>
## </param>
#
interface(`corecmd_bin_domtrans',`
	gen_require(`
		type bin_t;
	')

	corecmd_bin_spec_domtrans($1,$2)
	type_transition $1 bin_t:process $2;
')

########################################
## <summary>
##	Search the contents of sbin directories.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`corecmd_search_sbin',`
	gen_require(`
		type sbin_t;
	')

	allow $1 sbin_t:dir search_dir_perms;
')

########################################
## <summary>
##	Do not audit attempts to search
##	sbin directories.
## </summary>
## <param name="domain">
##	<summary>
##	Domain to not audit.
##	</summary>
## </param>
#
interface(`corecmd_dontaudit_search_sbin',`
	gen_require(`
		type sbin_t;
	')

	dontaudit $1 sbin_t:dir search_dir_perms;
')

########################################
## <summary>
##	List the contents of sbin directories.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`corecmd_list_sbin',`
	gen_require(`
		type sbin_t;
	')

	allow $1 sbin_t:dir r_dir_perms;
')

########################################
## <summary>
##	Get the attributes of sbin files.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`corecmd_getattr_sbin_files',`
	gen_require(`
		type sbin_t;
	')

	allow $1 sbin_t:file getattr;
')

########################################
## <summary>
##	Do not audit attempts to get the attibutes
##	of sbin files.
## </summary>
## <param name="domain">
##	<summary>
##	Domain to not audit.
##	</summary>
## </param>
#
interface(`corecmd_dontaudit_getattr_sbin_files',`
	gen_require(`
		type sbin_t;
	')

	dontaudit $1 sbin_t:file getattr;
')

########################################
## <summary>
##	Read files in sbin directories.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`corecmd_read_sbin_files',`
	gen_require(`
		type sbin_t;
	')

	allow $1 sbin_t:dir search;
	allow $1 sbin_t:file r_file_perms;
')

########################################
## <summary>
##	Read symbolic links in sbin directories.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`corecmd_read_sbin_symlinks',`
	gen_require(`
		type sbin_t;
	')

	allow $1 sbin_t:dir search;
	allow $1 sbin_t:lnk_file r_file_perms;
')

########################################
## <summary>
##	Read named pipes in sbin directories.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`corecmd_read_sbin_pipes',`
	gen_require(`
		type sbin_t;
	')

	allow $1 sbin_t:dir search;
	allow $1 sbin_t:fifo_file r_file_perms;
')

########################################
## <summary>
##	Read named sockets in sbin directories.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`corecmd_read_sbin_sockets',`
	gen_require(`
		type sbin_t;
	')

	allow $1 sbin_t:dir search;
	allow $1 sbin_t:sock_file r_file_perms;
')

########################################
## <summary>
##	Execute generic programs in sbin directories,
##	in the caller domain.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`corecmd_exec_sbin',`
	gen_require(`
		type sbin_t;
	')

	allow $1 sbin_t:dir r_dir_perms;
	allow $1 sbin_t:lnk_file r_file_perms;
	can_exec($1,sbin_t)
')

########################################
## <summary>
##	Create, read, write, and delete sbin files.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
# cjp: added for prelink
interface(`corecmd_manage_sbin_files',`
	gen_require(`
		type sbin_t;
	')

	allow $1 sbin_t:dir rw_dir_perms;
	allow $1 sbin_t:file manage_file_perms;
')

########################################
## <summary>
##	Relabel to and from the sbin type.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
# cjp: added for prelink
interface(`corecmd_relabel_sbin_files',`
	gen_require(`
		type sbin_t;
	')

	allow $1 sbin_t:dir search_dir_perms;
	allow $1 sbin_t:file { relabelfrom relabelto };
')

########################################
## <summary>
##	Mmap a sbin file as executable.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
# cjp: added for prelink
interface(`corecmd_mmap_sbin_files',`
	gen_require(`
		type sbin_t;
	')

	allow $1 sbin_t:dir search_dir_perms;
	allow $1 sbin_t:file { getattr read execute };
')

########################################
## <summary>
##	Execute a file in a sbin directory
##	in the specified domain.
## </summary>
## <desc>
##	<p>
##	Execute a file in a sbin directory
##	in the specified domain.  This allows
##	the specified domain to execute any file
##	on these filesystems in the specified
##	domain.  This is not suggested.
##	</p>
##	<p>
##	No interprocess communication (signals, pipes,
##	etc.) is provided by this interface since
##	the domains are not owned by this module.
##	</p>
##	<p>
##	This interface was added to handle
##	the ssh-agent policy.
##	</p>
## </desc>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
## <param name="target_domain">
##	<summary>
##	The type of the new process.
##	</summary>
## </param>
#
interface(`corecmd_sbin_domtrans',`
	gen_require(`
		type sbin_t;
	')

	allow $1 sbin_t:dir search;
	allow $1 sbin_t:lnk_file { getattr read };

	domain_auto_trans($1,sbin_t,$2)
')

########################################
## <summary>
##	Execute a file in a sbin directory
##	in the specified domain but do not
##	do it automatically. This is an explicit
##	transition, requiring the caller to use setexeccon().
## </summary>
## <desc>
##	<p>
##	Execute a file in a sbin directory
##	in the specified domain.  This allows
##	the specified domain to execute any file
##	on these filesystems in the specified
##	domain.  This is not suggested.
##	</p>
##	<p>
##	No interprocess communication (signals, pipes,
##	etc.) is provided by this interface since
##	the domains are not owned by this module.
##	</p>
##	<p>
##	This interface was added to handle
##	the userhelper policy.
##	</p>
## </desc>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
## <param name="target_domain">
##	<summary>
##	The type of the new process.
##	</summary>
## </param>
#
interface(`corecmd_sbin_spec_domtrans',`
	gen_require(`
		type sbin_t;
	')

	allow $1 sbin_t:dir search;
	allow $1 sbin_t:lnk_file { getattr read };

	domain_trans($1,sbin_t,$2)
')

########################################
## <summary>
##	Check if a shell is executable (DAC-wise).
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`corecmd_check_exec_shell',`
	gen_require(`
		type bin_t, shell_exec_t;
	')

	allow $1 bin_t:dir r_dir_perms;
	allow $1 bin_t:lnk_file r_file_perms;
	allow $1 shell_exec_t:file execute;
')

########################################
## <summary>
##	Execute a shell in the caller domain.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`corecmd_exec_shell',`
	gen_require(`
		type bin_t, shell_exec_t;
	')

	allow $1 bin_t:dir r_dir_perms;
	allow $1 bin_t:lnk_file r_file_perms;
	can_exec($1,shell_exec_t)
')

########################################
## <summary>
##	Execute ls in the caller domain.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`corecmd_exec_ls',`
	gen_require(`
		type bin_t, ls_exec_t;
	')

	allow $1 bin_t:dir r_dir_perms;
	allow $1 bin_t:lnk_file r_file_perms;
	can_exec($1,ls_exec_t)
')

########################################
## <summary>
##	Execute a shell in the target domain.  This
##	is an explicit transition, requiring the
##	caller to use setexeccon().
## </summary>
## <desc>
##	<p>
##	Execute a shell in the target domain.  This
##	is an explicit transition, requiring the
##	caller to use setexeccon().
##	</p>
##	<p>
##	No interprocess communication (signals, pipes,
##	etc.) is provided by this interface since
##	the domains are not owned by this module.
##	</p>
## </desc>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
## <param name="target_domain">
##	<summary>
##	The type of the shell process.
##	</summary>
## </param>
#
interface(`corecmd_shell_spec_domtrans',`
	gen_require(`
		type bin_t, shell_exec_t;
	')

	allow $1 bin_t:dir r_dir_perms;
	allow $1 bin_t:lnk_file r_file_perms;

	domain_trans($1,shell_exec_t,$2)
')

########################################
## <summary>
##	Execute a shell in the specified domain.
## </summary>
## <desc>
##	<p>
##	Execute a shell in the specified domain.
##	</p>
##	<p>
##	No interprocess communication (signals, pipes,
##	etc.) is provided by this interface since
##	the domains are not owned by this module.
##	</p>
## </desc>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
## <param name="target_domain">
##	<summary>
##	The type of the shell process.
##	</summary>
## </param>
#
interface(`corecmd_shell_domtrans',`
	gen_require(`
		type shell_exec_t;
	')

	corecmd_shell_spec_domtrans($1,$2)
	type_transition $1 shell_exec_t:process $2;
')

########################################
## <summary>
##	Execute chroot in the caller domain.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`corecmd_exec_chroot',`
	gen_require(`
		type chroot_exec_t;
	')

	can_exec($1,chroot_exec_t)
	allow $1 self:capability sys_chroot;
')

########################################
## <summary>
##	Execute all executable files.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`corecmd_exec_all_executables',`
	gen_require(`
		attribute exec_type;
		type bin_t, sbin_t;
	')

	can_exec($1,exec_type)
	allow $1 { bin_t sbin_t }:dir list_dir_perms;
	allow $1 { bin_t sbin_t }:lnk_file read_file_perms;
')

########################################
## <summary>
##	Create, read, write, and all executable files.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`corecmd_manage_all_executables',`
	gen_require(`
		attribute exec_type;
		type bin_t, sbin_t;
	')

	allow $1 exec_type:file manage_file_perms;
	allow $1 { bin_t sbin_t }:dir rw_dir_perms;
	allow $1 { bin_t sbin_t }:lnk_file create_lnk_perms;
')

########################################
## <summary>
##	Relabel to and from the bin type.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`corecmd_relabel_all_executables',`
	gen_require(`
		attribute exec_type;
	')

	allow $1 exec_type:file { relabelfrom relabelto };
')

########################################
## <summary>
##	Mmap all executables as executable.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`corecmd_mmap_all_executables',`
	gen_require(`
		attribute exec_type;
	')

	allow $1 exec_type:file { getattr read execute };
')