1006 lines
22 KiB
Plaintext
1006 lines
22 KiB
Plaintext
## <summary>Core policy for domains.</summary>
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## <required val="true">
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## Contains the concept of a domain.
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## </required>
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########################################
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## <summary>
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## Make the specified type usable as a basic domain.
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## </summary>
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## <desc>
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## <p>
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## Make the specified type usable as a basic domain.
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## </p>
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## <p>
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## This is primarily used for kernel threads;
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## generally the domain_type() interface is
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## more appropriate for userland processes.
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## </p>
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## </desc>
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## <param name="type">
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## Type to be used as a basic domain type.
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## </param>
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#
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interface(`domain_base_type',`
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gen_require(`
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attribute domain;
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class dir r_dir_perms;
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class lnk_file r_file_perms;
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class file rw_file_perms;
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class process { fork sigchld };
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')
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# mark as a domain
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typeattribute $1 domain;
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# allow the domain to read its /proc/pid entries
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allow $1 self:dir r_dir_perms;
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allow $1 self:lnk_file r_file_perms;
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allow $1 self:file rw_file_perms;
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# allow $1 to create child processes in this domain
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allow $1 self:process { fork sigchld };
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ifdef(`targeted_policy',`
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tunable_policy(`allow_execmem',`
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allow $1 self:process execmem;
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')
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')
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')
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########################################
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## <summary>
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## Make the specified type usable as a domain.
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## </summary>
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## <param name="type">
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## Type to be used as a domain type.
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## </param>
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#
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interface(`domain_type',`
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# start with basic domain
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domain_base_type($1)
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# Use trusted objects in /dev
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dev_rw_null_dev($1)
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dev_rw_zero_dev($1)
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term_use_controlling_term($1)
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# read the root directory
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files_list_root($1)
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# send init a sigchld and signull
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init_sigchld($1)
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init_signull($1)
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ifdef(`targeted_policy',`
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unconfined_use_fd($1)
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unconfined_sigchld($1)
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')
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tunable_policy(`allow_ptrace',`
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userdom_sigchld_sysadm($1)
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')
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# allow any domain to connect to the LDAP server
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optional_policy(`ldap.te',`
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ldap_use($1)
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')
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# these 3 seem highly questionable:
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optional_policy(`rpm.te',`
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rpm_use_fd($1)
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rpm_read_pipe($1)
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')
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optional_policy(`selinux.te',`
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selinux_dontaudit_search_fs($1)
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')
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optional_policy(`selinuxutil.te',`
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seutil_dontaudit_read_config($1)
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')
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')
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########################################
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## <summary>
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## Make the specified type usable as
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## an entry point for the domain.
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## </summary>
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## <param name="domain">
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## Domain to be entered.
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## </param>
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## <param name="type">
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## Type of program used for entering
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## the domain.
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## </param>
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#
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interface(`domain_entry_file',`
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gen_require(`
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attribute entry_type;
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class file entrypoint;
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')
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files_type($2)
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allow $1 $2:file entrypoint;
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allow $1 $2:file rx_file_perms;
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typeattribute $2 entry_type;
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')
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########################################
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#
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# domain_wide_inherit_fd(domain)
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#
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interface(`domain_wide_inherit_fd',`
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gen_require(`
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attribute privfd;
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')
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typeattribute $1 privfd;
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')
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########################################
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#
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# domain_dyntrans_type(domain)
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#
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interface(`domain_dyntrans_type',`
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gen_require(`
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attribute set_curr_context;
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')
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typeattribute $1 set_curr_context;
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')
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########################################
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## <summary>
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## Makes caller and execption to the constraint
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## preventing changing to the system user
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## identity and system role.
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## </summary>
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## <param name="domain">
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## Domain allowed access.
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## </param>
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#
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interface(`domain_system_change_exempt',`
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gen_require(`
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attribute can_system_change;
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')
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typeattribute $1 can_system_change;
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')
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########################################
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## <summary>
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## Makes caller an exception to the constraint preventing
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## changing of user identity.
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## </summary>
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## <param name="domain">
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## The process type to make an exception to the constraint.
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## </param>
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#
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interface(`domain_subj_id_change_exempt',`
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gen_require(`
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attribute can_change_process_identity;
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')
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typeattribute $1 can_change_process_identity;
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')
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########################################
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## <summary>
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## Makes caller an exception to the constraint preventing
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## changing of role.
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## </summary>
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## <param name="domain">
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## The process type to make an exception to the constraint.
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## </param>
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#
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interface(`domain_role_change_exempt',`
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gen_require(`
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attribute can_change_process_role;
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')
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typeattribute $1 can_change_process_role;
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')
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########################################
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## <summary>
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## Makes caller an exception to the constraint preventing
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## changing the user identity in object contexts.
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## </summary>
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## <param name="domain">
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## The process type to make an exception to the constraint.
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## </param>
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#
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interface(`domain_obj_id_change_exempt',`
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gen_require(`
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attribute can_change_object_identity;
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')
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typeattribute $1 can_change_object_identity;
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')
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########################################
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## <summary>
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## Make the specified domain the target of
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## the user domain exception of the
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## SELinux role and identity change
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## constraints.
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## </summary>
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## <desc>
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## <p>
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## Make the specified domain the target of
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## the user domain exception of the
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## SELinux role and identity change
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## constraints.
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## </p>
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## <p>
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## This interface is needed to decouple
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## the user domains from the base module.
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## It should not be used other than on
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## user domains.
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## </p>
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## </desc>
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## <param name="domain">
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## Domain target for user exemption.
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## </param>
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#
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interface(`domain_user_exemption_target',`
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gen_require(`
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attribute process_user_target;
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')
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typeattribute $1 process_user_target;
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')
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########################################
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## <summary>
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## Make the specified domain the source of
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## the cron domain exception of the
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## SELinux role and identity change
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## constraints.
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## </summary>
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## <desc>
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## <p>
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## Make the specified domain the source of
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## the cron domain exception of the
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## SELinux role and identity change
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## constraints.
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## </p>
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## <p>
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## This interface is needed to decouple
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## the cron domains from the base module.
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## It should not be used other than on
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## cron domains.
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## </p>
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## </desc>
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## <param name="domain">
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## Domain target for user exemption.
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## </param>
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#
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interface(`domain_cron_exemption_source',`
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gen_require(`
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attribute cron_source_domain;
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')
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typeattribute $1 cron_source_domain;
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')
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########################################
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## <summary>
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## Make the specified domain the target of
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## the cron domain exception of the
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## SELinux role and identity change
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## constraints.
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## </summary>
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## <desc>
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## <p>
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## Make the specified domain the target of
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## the cron domain exception of the
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## SELinux role and identity change
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## constraints.
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## </p>
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## <p>
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## This interface is needed to decouple
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## the cron domains from the base module.
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## It should not be used other than on
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## user cron jobs.
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## </p>
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## </desc>
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## <param name="domain">
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## Domain target for user exemption.
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## </param>
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#
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interface(`domain_cron_exemption_target',`
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gen_require(`
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attribute cron_job_domain;
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')
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typeattribute $1 cron_job_domain;
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')
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########################################
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#
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# domain_use_wide_inherit_fd(domain)
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#
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interface(`domain_use_wide_inherit_fd',`
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gen_require(`
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attribute privfd;
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class fd use;
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')
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allow $1 privfd:fd use;
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')
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########################################
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#
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# domain_dontaudit_use_wide_inherit_fd(domain)
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#
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interface(`domain_dontaudit_use_wide_inherit_fd',`
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gen_require(`
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attribute privfd;
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class fd use;
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')
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dontaudit $1 privfd:fd use;
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')
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########################################
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## <summary>
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## Send a SIGCHLD signal to domains whose file
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## discriptors are widely inheritable.
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## </summary>
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## <param name="domain">
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## Domain allowed access.
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## </param>
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#
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# cjp: this was added because of newrole
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interface(`domain_sigchld_wide_inherit_fd',`
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gen_require(`
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attribute privfd;
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class process signal;
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')
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dontaudit $1 privfd:fd use;
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')
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########################################
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#
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# domain_setpriority_all_domains(domain)
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#
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interface(`domain_setpriority_all_domains',`
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gen_require(`
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attribute domain;
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class process setsched;
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')
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allow $1 domain:process setsched;
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')
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########################################
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## <summary>
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## Send general signals to all domains.
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## </summary>
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## <param name="domain">
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## The type of the process performing this action.
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## </param>
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#
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interface(`domain_signal_all_domains',`
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gen_require(`
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attribute domain;
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class process signal;
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')
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allow $1 domain:process signal;
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')
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########################################
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## <summary>
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## Send a null signal to all domains.
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## </summary>
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## <param name="domain">
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## The type of the process performing this action.
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## </param>
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#
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interface(`domain_signull_all_domains',`
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gen_require(`
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attribute domain;
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class process signull;
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')
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allow $1 domain:process signull;
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')
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########################################
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## <summary>
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## Send a stop signal to all domains.
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## </summary>
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## <param name="domain">
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## The type of the process performing this action.
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## </param>
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#
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interface(`domain_sigstop_all_domains',`
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gen_require(`
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attribute domain;
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class process sigstop;
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')
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allow $1 domain:process sigstop;
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')
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########################################
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## <summary>
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## Send a child terminated signal to all domains.
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## </summary>
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## <param name="domain">
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## The type of the process performing this action.
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## </param>
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#
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interface(`domain_sigchld_all_domains',`
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gen_require(`
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attribute domain;
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class process sigchld;
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')
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allow $1 domain:process sigchld;
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')
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########################################
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## <summary>
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## Send a kill signal to all domains.
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## </summary>
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## <param name="domain">
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## The type of the process performing this action.
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## </param>
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#
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interface(`domain_kill_all_domains',`
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gen_require(`
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attribute domain;
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class process sigkill;
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class capability kill;
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')
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allow $1 domain:process sigkill;
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allow $1 self:capability kill;
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')
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########################################
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## <summary>
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## Search the process state directory (/proc/pid) of all domains.
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## </summary>
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## <param name="domain">
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## Domain allowed access.
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## </param>
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#
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interface(`domain_search_all_domains_state',`
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gen_require(`
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attribute domain;
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class dir search;
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')
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kernel_search_proc($1)
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allow $1 domain:dir search;
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')
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########################################
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## <summary>
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## Read the process state (/proc/pid) of all domains.
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## </summary>
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## <param name="domain">
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## Domain allowed access.
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## </param>
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#
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interface(`domain_read_all_domains_state',`
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gen_require(`
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attribute domain;
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class dir r_dir_perms;
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class lnk_file r_file_perms;
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class file r_file_perms;
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')
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kernel_search_proc($1)
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allow $1 domain:dir r_dir_perms;
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allow $1 domain:lnk_file r_file_perms;
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allow $1 domain:file r_file_perms;
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')
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########################################
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## <summary>
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## Get the attributes of all domains of all domains.
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## </summary>
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## <param name="domain">
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## Domain allowed access.
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## </param>
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#
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interface(`domain_getattr_all_domains',`
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gen_require(`
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attribute domain;
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class process getattr;
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')
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allow $1 domain:process getattr;
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')
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########################################
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## <summary>
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## Read the process state (/proc/pid) of all confined domains.
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## </summary>
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## <param name="domain">
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## Domain allowed access.
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## </param>
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#
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interface(`domain_read_confined_domains_state',`
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gen_require(`
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attribute domain, unconfined_domain;
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')
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kernel_search_proc($1)
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allow $1 { domain -unconfined_domain }:dir r_dir_perms;
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allow $1 { domain -unconfined_domain }:lnk_file r_file_perms;
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allow $1 { domain -unconfined_domain }:file r_file_perms;
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allow $1 { domain -unconfined_domain }:process getattr;
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dontaudit $1 unconfined_domain:dir search;
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dontaudit $1 unconfined_domain:file { getattr read };
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')
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########################################
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## <summary>
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## Get the attributes of all confined domains.
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## </summary>
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## <param name="domain">
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## Domain allowed access.
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## </param>
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#
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interface(`domain_getattr_confined_domains',`
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gen_require(`
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attribute domain, unconfined_domain;
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class process getattr;
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')
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allow $1 { domain -unconfined_domain }:process getattr;
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')
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########################################
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## <summary>
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## Ptrace all domains.
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## </summary>
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## <param name="domain">
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## Domain allowed access.
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## </param>
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#
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interface(`domain_ptrace_all_domains',`
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gen_require(`
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attribute domain;
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')
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allow $1 domain:process ptrace;
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')
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########################################
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## <summary>
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## Do not audit attempts to ptrace all domains.
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## </summary>
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## <desc>
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## <p>
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## Do not audit attempts to ptrace all domains.
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## </p>
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## <p>
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## Generally this needs to be suppressed because procps tries to access
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## /proc/pid/environ and this now triggers a ptrace check in recent kernels
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## (2.4 and 2.6).
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## </p>
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## </desc>
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## <param name="domain">
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## Domain allowed access.
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## </param>
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#
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interface(`domain_dontaudit_ptrace_all_domains',`
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gen_require(`
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attribute domain;
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')
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dontaudit $1 domain:process ptrace;
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')
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########################################
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## <summary>
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## Do not audit attempts to ptrace confined domains.
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## </summary>
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## <desc>
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## <p>
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## Do not audit attempts to ptrace confined domains.
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## </p>
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## <p>
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## Generally this needs to be suppressed because procps tries to access
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## /proc/pid/environ and this now triggers a ptrace check in recent kernels
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## (2.4 and 2.6).
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## </p>
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## </desc>
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## <param name="domain">
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## Domain allowed access.
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## </param>
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#
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interface(`domain_dontaudit_ptrace_confined_domains',`
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gen_require(`
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attribute domain, unconfined_domain;
|
|
class process ptrace;
|
|
')
|
|
|
|
dontaudit $1 { domain -unconfined_domain }:process ptrace;
|
|
')
|
|
|
|
########################################
|
|
## <summary>
|
|
## Do not audit attempts to read the process
|
|
## state (/proc/pid) of all domains.
|
|
## </summary>
|
|
## <param name="domain">
|
|
## The type of the process performing this action.
|
|
## </param>
|
|
#
|
|
interface(`domain_dontaudit_read_all_domains_state',`
|
|
gen_require(`
|
|
attribute domain;
|
|
class dir r_dir_perms;
|
|
class lnk_file r_file_perms;
|
|
class file r_file_perms;
|
|
')
|
|
|
|
dontaudit $1 domain:dir r_dir_perms;
|
|
dontaudit $1 domain:lnk_file r_file_perms;
|
|
dontaudit $1 domain:file r_file_perms;
|
|
dontaudit $1 domain:process getattr;
|
|
')
|
|
|
|
########################################
|
|
## <summary>
|
|
## Do not audit attempts to read the process state
|
|
## directories of all domains.
|
|
## </summary>
|
|
## <param name="domain">
|
|
## The type of the process performing this action.
|
|
## </param>
|
|
#
|
|
interface(`domain_dontaudit_list_all_domains_proc',`
|
|
gen_require(`
|
|
attribute domain;
|
|
class dir r_dir_perms;
|
|
')
|
|
|
|
dontaudit $1 domain:dir r_dir_perms;
|
|
')
|
|
|
|
########################################
|
|
## <summary>
|
|
## Get the session ID of all domains.
|
|
## </summary>
|
|
## <param name="domain">
|
|
## The type of the process performing this action.
|
|
## </param>
|
|
#
|
|
interface(`domain_getsession_all_domains',`
|
|
gen_require(`
|
|
attribute domain;
|
|
class process getsession;
|
|
')
|
|
|
|
allow $1 domain:process getsession;
|
|
')
|
|
|
|
########################################
|
|
## <summary>
|
|
## Do not audit attempts to get the
|
|
## session ID of all domains.
|
|
## </summary>
|
|
## <param name="domain">
|
|
## The type of the process performing this action.
|
|
## </param>
|
|
#
|
|
interface(`domain_dontaudit_getsession_all_domains',`
|
|
gen_require(`
|
|
attribute domain;
|
|
class process getsession;
|
|
')
|
|
|
|
dontaudit $1 domain:process getsession;
|
|
')
|
|
|
|
########################################
|
|
## <summary>
|
|
## Get the attributes of all domains
|
|
## sockets, for all socket types.
|
|
## </summary>
|
|
## <desc>
|
|
## <p>
|
|
## Get the attributes of all domains
|
|
## sockets, for all socket types.
|
|
## </p>
|
|
## <p>
|
|
## This is commonly used for domains
|
|
## that can use lsof on all domains.
|
|
## </p>
|
|
## </desc>
|
|
## <param name="domain">
|
|
## Domain allowed access.
|
|
## </param>
|
|
#
|
|
interface(`domain_getattr_all_sockets',`
|
|
gen_require(`
|
|
gen_require_set(getattr,socket_class_set)
|
|
')
|
|
|
|
allow $1 domain:socket_class_set getattr;
|
|
')
|
|
|
|
########################################
|
|
## <summary>
|
|
## Do not audit attempts to get the attributes
|
|
## of all domains sockets, for all socket types.
|
|
## </summary>
|
|
## <desc>
|
|
## <p>
|
|
## Do not audit attempts to get the attributes
|
|
## of all domains sockets, for all socket types.
|
|
## </p>
|
|
## <p>
|
|
## This interface was added for PCMCIA cardmgr
|
|
## and is probably excessive.
|
|
## </p>
|
|
## </desc>
|
|
## <param name="domain">
|
|
## Domain to not audit.
|
|
## </param>
|
|
#
|
|
interface(`domain_dontaudit_getattr_all_sockets',`
|
|
gen_require(`
|
|
gen_require_set(getattr,socket_class_set)
|
|
')
|
|
|
|
dontaudit $1 domain:socket_class_set getattr;
|
|
')
|
|
|
|
########################################
|
|
## <summary>
|
|
## Do not audit attempts to get the attributes
|
|
## of all domains TCP sockets.
|
|
## </summary>
|
|
## <param name="domain">
|
|
## The type of the process performing this action.
|
|
## </param>
|
|
#
|
|
interface(`domain_dontaudit_getattr_all_tcp_sockets',`
|
|
gen_require(`
|
|
attribute domain;
|
|
class tcp_socket getattr;
|
|
')
|
|
|
|
dontaudit $1 domain:tcp_socket getattr;
|
|
')
|
|
|
|
########################################
|
|
## <summary>
|
|
## Do not audit attempts to get the attributes
|
|
## of all domains UDP sockets.
|
|
## </summary>
|
|
## <param name="domain">
|
|
## The type of the process performing this action.
|
|
## </param>
|
|
#
|
|
interface(`domain_dontaudit_getattr_all_udp_sockets',`
|
|
gen_require(`
|
|
attribute domain;
|
|
class udp_socket getattr;
|
|
')
|
|
|
|
dontaudit $1 domain:udp_socket getattr;
|
|
')
|
|
|
|
########################################
|
|
## <summary>
|
|
## Do not audit attempts to read or write
|
|
## all domains UDP sockets.
|
|
## </summary>
|
|
## <param name="domain">
|
|
## The type of the process performing this action.
|
|
## </param>
|
|
#
|
|
interface(`domain_dontaudit_rw_all_udp_sockets',`
|
|
gen_require(`
|
|
attribute domain;
|
|
class udp_socket { read write };
|
|
')
|
|
|
|
dontaudit $1 domain:udp_socket { read write };
|
|
')
|
|
|
|
########################################
|
|
## <summary>
|
|
## Do not audit attempts to get attribues of
|
|
## all domains IPSEC key management sockets.
|
|
## </summary>
|
|
## <param name="domain">
|
|
## The type of the process performing this action.
|
|
## </param>
|
|
#
|
|
interface(`domain_dontaudit_getattr_all_key_sockets',`
|
|
gen_require(`
|
|
attribute domain;
|
|
class key_socket { read write };
|
|
')
|
|
|
|
dontaudit $1 domain:key_socket getattr;
|
|
')
|
|
########################################
|
|
## <summary>
|
|
## Do not audit attempts to read or write
|
|
## all domains key sockets.
|
|
## </summary>
|
|
## <param name="domain">
|
|
## The type of the process performing this action.
|
|
## </param>
|
|
#
|
|
interface(`domain_dontaudit_rw_all_key_sockets',`
|
|
gen_require(`
|
|
attribute domain;
|
|
class key_socket { read write };
|
|
')
|
|
|
|
dontaudit $1 domain:key_socket { read write };
|
|
')
|
|
|
|
########################################
|
|
## <summary>
|
|
## Do not audit attempts to get the attributes
|
|
## of all domains unix datagram sockets.
|
|
## </summary>
|
|
## <param name="domain">
|
|
## The type of the process performing this action.
|
|
## </param>
|
|
#
|
|
interface(`domain_dontaudit_getattr_all_unix_dgram_sockets',`
|
|
gen_require(`
|
|
attribute domain;
|
|
class unix_dgram_socket getattr;
|
|
')
|
|
|
|
dontaudit $1 domain:unix_dgram_socket getattr;
|
|
')
|
|
|
|
########################################
|
|
## <summary>
|
|
## Do not audit attempts to get the attributes
|
|
## of all domains unnamed pipes.
|
|
## </summary>
|
|
## <param name="domain">
|
|
## The type of the process performing this action.
|
|
## </param>
|
|
#
|
|
interface(`domain_dontaudit_getattr_all_unnamed_pipes',`
|
|
gen_require(`
|
|
attribute domain;
|
|
class fifo_file getattr;
|
|
')
|
|
|
|
dontaudit $1 domain:fifo_file getattr;
|
|
')
|
|
|
|
########################################
|
|
## <summary>
|
|
## Get the attributes of entry point
|
|
## files for all domains.
|
|
## </summary>
|
|
## <param name="domain">
|
|
## Domain allowed access.
|
|
## </param>
|
|
#
|
|
interface(`domain_getattr_all_entry_files',`
|
|
gen_require(`
|
|
attribute entry_type;
|
|
class file getattr;
|
|
class lnk_file r_file_perms;
|
|
')
|
|
|
|
allow $1 entry_type:lnk_file getattr;
|
|
allow $1 entry_type:file r_file_perms;
|
|
')
|
|
|
|
########################################
|
|
#
|
|
# domain_read_all_entry_files(domain)
|
|
#
|
|
interface(`domain_read_all_entry_files',`
|
|
gen_require(`
|
|
attribute entry_type;
|
|
class file r_file_perms;
|
|
class lnk_file r_file_perms;
|
|
')
|
|
|
|
allow $1 entry_type:lnk_file r_file_perms;
|
|
allow $1 entry_type:file r_file_perms;
|
|
')
|
|
|
|
########################################
|
|
#
|
|
# domain_exec_all_entry_files(domain)
|
|
#
|
|
interface(`domain_exec_all_entry_files',`
|
|
gen_require(`
|
|
attribute entry_type;
|
|
')
|
|
|
|
can_exec($1,entry_type)
|
|
')
|
|
|
|
########################################
|
|
## <summary>
|
|
## Unconfined access to domains.
|
|
## </summary>
|
|
## <param name="domain">
|
|
## The type of the process performing this action.
|
|
## </param>
|
|
#
|
|
interface(`domain_unconfined',`
|
|
gen_require(`
|
|
attribute domain, set_curr_context;
|
|
attribute can_change_process_identity;
|
|
attribute can_change_process_role;
|
|
attribute can_change_object_identity;
|
|
attribute unconfined_domain;
|
|
')
|
|
|
|
typeattribute $1 unconfined_domain;
|
|
|
|
# pass all constraints
|
|
typeattribute $1 can_change_process_identity;
|
|
typeattribute $1 can_change_process_role;
|
|
typeattribute $1 can_change_object_identity;
|
|
typeattribute $1 set_curr_context;
|
|
|
|
# Use/sendto/connectto sockets created by any domain.
|
|
allow $1 domain:{ socket_class_set socket key_socket } *;
|
|
|
|
# Use descriptors and pipes created by any domain.
|
|
allow $1 domain:fd use;
|
|
allow $1 domain:fifo_file rw_file_perms;
|
|
|
|
# Act upon any other process.
|
|
allow $1 domain:process ~{ transition dyntransition execmem };
|
|
|
|
# Create/access any System V IPC objects.
|
|
allow $1 domain:{ sem msgq shm } *;
|
|
allow $1 domain:msg { send receive };
|
|
|
|
# For /proc/pid
|
|
allow $1 domain:dir r_dir_perms;
|
|
allow $1 domain:file r_file_perms;
|
|
allow $1 domain:lnk_file r_file_perms;
|
|
')
|
|
|
|
#
|
|
# These next macros are not templates, but actually are
|
|
# support macros. Due to the domain_ prefix, they
|
|
# are placed in this module, to try to prevent confusion.
|
|
# They are called templates since regular m4 defines
|
|
# wont work here.
|
|
#
|
|
|
|
########################################
|
|
#
|
|
# domain_trans(source_domain,entrypoint_file,target_domain)
|
|
#
|
|
template(`domain_trans',`
|
|
allow $1 $2:file rx_file_perms;
|
|
allow $1 $3:process transition;
|
|
dontaudit $1 $3:process { noatsecure siginh rlimitinh };
|
|
')
|
|
|
|
########################################
|
|
#
|
|
# domain_auto_trans(source_domain,entrypoint_file,target_domain)
|
|
#
|
|
template(`domain_auto_trans',`
|
|
domain_trans($1,$2,$3)
|
|
type_transition $1 $2:process $3;
|
|
')
|