84 lines
2.1 KiB
Plaintext
84 lines
2.1 KiB
Plaintext
|
#
|
||
|
|
# Define m4 macros for the constraints
|
||
|
|
#
|
||
|
|
|
||
|
|
#
|
||
|
|
# Define the constraints
|
||
|
|
#
|
||
|
|
# constrain class_set perm_set expression ;
|
||
|
|
#
|
||
|
|
# validatetrans class_set expression ;
|
||
|
|
#
|
||
|
|
# expression : ( expression )
|
||
|
|
# | not expression
|
||
|
|
# | expression and expression
|
||
|
|
# | expression or expression
|
||
|
|
# | u1 op u2
|
||
|
|
# | r1 role_mls_op r2
|
||
|
|
# | t1 op t2
|
||
|
|
# | l1 role_mls_op l2
|
||
|
|
# | l1 role_mls_op h2
|
||
|
|
# | h1 role_mls_op l2
|
||
|
|
# | h1 role_mls_op h2
|
||
|
|
# | l1 role_mls_op h1
|
||
|
|
# | l2 role_mls_op h2
|
||
|
|
# | u1 op names
|
||
|
|
# | u2 op names
|
||
|
|
# | r1 op names
|
||
|
|
# | r2 op names
|
||
|
|
# | t1 op names
|
||
|
|
# | t2 op names
|
||
|
|
# | u3 op names (NOTE: this is only available for validatetrans)
|
||
|
|
# | r3 op names (NOTE: this is only available for validatetrans)
|
||
|
|
# | t3 op names (NOTE: this is only available for validatetrans)
|
||
|
|
#
|
||
|
|
# op : == | !=
|
||
|
|
# role_mls_op : == | != | eq | dom | domby | incomp
|
||
|
|
#
|
||
|
|
# names : name | { name_list }
|
||
|
|
# name_list : name | name_list name#
|
||
|
|
#
|
||
|
|
|
||
|
|
#
|
||
|
|
# Restrict the ability to transition to other users
|
||
|
|
# or roles to a few privileged types.
|
||
|
|
#
|
||
|
|
|
||
|
|
constrain process transition
|
||
|
|
( u1 == u2 or ( t1 == privuser and t2 == userdomain )
|
||
|
|
ifdef(`crond.te', `
|
||
|
|
or (t1 == crond_t and (t2 == user_crond_domain or u2 == system_u))
|
||
|
|
')
|
||
|
|
ifdef(`userhelper.te',
|
||
|
|
`or (t1 == userhelperdomain)')
|
||
|
|
or (t1 == priv_system_role and u2 == system_u )
|
||
|
|
);
|
||
|
|
|
||
|
|
constrain process transition
|
||
|
|
( r1 == r2 or ( t1 == privrole and t2 == userdomain )
|
||
|
|
ifdef(`crond.te', `
|
||
|
|
or (t1 == crond_t and t2 == user_crond_domain)
|
||
|
|
')
|
||
|
|
ifdef(`userhelper.te',
|
||
|
|
`or (t1 == userhelperdomain)')
|
||
|
|
ifdef(`postfix.te', `
|
||
|
|
ifdef(`direct_sysadm_daemon',
|
||
|
|
`or (t1 == sysadm_mail_t and t2 == system_mail_t and r2 == system_r )')
|
||
|
|
')
|
||
|
|
or (t1 == priv_system_role and r2 == system_r )
|
||
|
|
);
|
||
|
|
|
||
|
|
constrain process dyntransition
|
||
|
|
( u1 == u2 and r1 == r2);
|
||
|
|
|
||
|
|
#
|
||
|
|
# Restrict the ability to label objects with other
|
||
|
|
# user identities to a few privileged types.
|
||
|
|
#
|
||
|
|
|
||
|
|
constrain dir_file_class_set { create relabelto relabelfrom }
|
||
|
|
( u1 == u2 or t1 == privowner );
|
||
|
|
|
||
|
|
constrain socket_class_set { create relabelto relabelfrom }
|
||
|
|
( u1 == u2 or t1 == privowner );
|