add userhelper
This commit is contained in:
Chris PeBenito
parent
6d14093b26
commit
7c2f5a82ae
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@ -1,5 +1,6 @@
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- Added modules:
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portage
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userhelper
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usernetctl
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* Tue Jan 17 2006 Chris PeBenito <selinux@tresys.com> - 20060117
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@ -0,0 +1,9 @@
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#
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# /etc
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#
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/etc/security/console.apps(/.*)? gen_context(system_u:object_r:userhelper_conf_t,s0)
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#
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# /usr
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#
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/usr/sbin/userhelper -- gen_context(system_u:object_r:userhelper_exec_t,s0)
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@ -0,0 +1,217 @@
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## <summary>SELinux utility to run a shell with a new role</summary>
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#######################################
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## <summary>
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## The per user domain template for the userhelper module.
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## </summary>
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## <desc>
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## <p>
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## This template creates a derived domains which are used
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## for userhelper.
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## </p>
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## <p>
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## This template is invoked automatically for each user, and
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## generally does not need to be invoked directly
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## by policy writers.
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## </p>
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## </desc>
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## <param name="userdomain_prefix">
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## The prefix of the user domain (e.g., user
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## is the prefix for user_t).
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## </param>
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## <param name="user_domain">
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## The type of the user domain.
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## </param>
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## <param name="user_role">
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## The role associated with the user domain.
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## </param>
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#
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template(`userhelper_per_userdomain_template',`
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gen_require(`
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type userhelper_exec_t, userhelper_conf_t;
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')
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########################################
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#
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# Declarations
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#
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type $1_userhelper_t;
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domain_type($1_userhelper_t)
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domain_entry_file($1_userhelper_t,userhelper_exec_t)
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domain_role_change_exempt($1_userhelper_t)
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domain_obj_id_change_exempt($1_userhelper_t)
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domain_wide_inherit_fd($1_userhelper_t)
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domain_subj_id_change_exempt($1_userhelper_t)
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role system_r types $1_userhelper_t;
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########################################
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#
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# Local policy
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#
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allow $1_userhelper_t self:capability { setuid setgid net_bind_service dac_override chown sys_tty_config };
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allow $1_userhelper_t self:process ~{ ptrace setcurrent setexec setfscreate setrlimit execmem execstack execheap };
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allow $1_userhelper_t self:fd use;
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allow $1_userhelper_t self:fifo_file rw_file_perms;
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allow $1_userhelper_t self:shm create_shm_perms;
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allow $1_userhelper_t self:sem create_sem_perms;
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allow $1_userhelper_t self:msgq create_msgq_perms;
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allow $1_userhelper_t self:msg { send receive };
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allow $1_userhelper_t self:unix_dgram_socket create_socket_perms;
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allow $1_userhelper_t self:unix_stream_socket create_stream_socket_perms;
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allow $1_userhelper_t self:unix_dgram_socket sendto;
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allow $1_userhelper_t self:unix_stream_socket connectto;
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allow $1_userhelper_t self:sock_file r_file_perms;
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#Transition to the derived domain.
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domain_auto_trans($2,userhelper_exec_t,$1_userhelper_t)
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allow $2 $1_userhelper_t:fd use;
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allow $1_userhelper_t $2:fd use;
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allow $1_userhelper_t $2:fifo_file rw_file_perms;
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allow $1_userhelper_t $2:process sigchld;
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allow $1_userhelper_t self:process setexec;
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allow $1_userhelper_t userhelper_conf_t:file rw_file_perms;
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allow $1_userhelper_t userhelper_conf_t:dir rw_dir_perms;
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can_exec($1_userhelper_t, userhelper_exec_t)
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dontaudit $2 $1_userhelper_t:process signal;
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kernel_read_all_sysctl($1_userhelper_t)
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kernel_getattr_debugfs($1_userhelper_t)
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kernel_read_system_state($1_userhelper_t)
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# Execute shells
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corecmd_exec_shell($1_userhelper_t)
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# By default, revert to the calling domain when a program is executed
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corecmd_bin_domtrans($1_userhelper_t,$2)
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corecmd_sbin_domtrans($1_userhelper_t,$2)
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# Inherit descriptors from the current session.
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domain_use_wide_inherit_fd($1_userhelper_t)
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# for when the user types "exec userhelper" at the command line
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domain_sigchld_wide_inherit_fd($1_userhelper_t)
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dev_read_urand($1_userhelper_t)
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# Read /dev directories and any symbolic links.
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dev_list_all_dev_nodes($1_userhelper_t)
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files_list_var_lib($1_userhelper_t)
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# Write to utmp.
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files_filetrans_pid($1_userhelper_t,initrc_var_run_t)
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# Read the /etc/security/default_type file
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files_read_etc_files($1_userhelper_t)
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# Read /var.
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files_read_var_files($1_userhelper_t)
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files_read_var_symlink($1_userhelper_t)
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# for some PAM modules and for cwd
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files_search_home($1_userhelper_t)
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fs_search_auto_mountpoints($1_userhelper_t)
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fs_read_nfs_files($1_userhelper_t)
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fs_read_nfs_symlinks($1_userhelper_t)
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# Allow $1_userhelper to obtain contexts to relabel TTYs
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selinux_get_fs_mount($1_userhelper_t)
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selinux_validate_context($1_userhelper_t)
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selinux_compute_access_vector($1_userhelper_t)
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selinux_compute_create_context($1_userhelper_t)
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selinux_compute_relabel_context($1_userhelper_t)
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selinux_compute_user_contexts($1_userhelper_t)
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# Read the devpts root directory.
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term_list_ptys($1_userhelper_t)
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# Relabel terminals.
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term_relabel_all_user_ttys($1_userhelper_t)
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term_relabel_all_user_ptys($1_userhelper_t)
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# Access terminals.
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term_use_all_user_ttys($1_userhelper_t)
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term_use_all_user_ptys($1_userhelper_t)
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auth_domtrans_chk_passwd($1_userhelper_t)
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auth_manage_pam_pid($1_userhelper_t)
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auth_manage_var_auth($1_userhelper_t)
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auth_search_pam_console_data($1_userhelper_t)
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# Inherit descriptors from the current session.
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init_use_fd($1_userhelper_t)
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# Write to utmp.
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init_manage_utmp($1_userhelper_t)
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libs_use_ld_so($1_userhelper_t)
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libs_use_shared_libs($1_userhelper_t)
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miscfiles_read_localization($1_userhelper_t)
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seutil_read_config($1_userhelper_t)
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seutil_read_default_contexts($1_userhelper_t)
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userdom_use_unpriv_users_fd($1_userhelper_t)
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# Allow $1_userhelper_t to transition to user domains.
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userdom_bin_spec_domtrans_unpriv_users($1_userhelper_t)
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userdom_sbin_spec_domtrans_unpriv_users($1_userhelper_t)
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userdom_entry_spec_domtrans_unpriv_users($1_userhelper_t)
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ifdef(`distro_redhat',`
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optional_policy(`rpm',`
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# Allow transitioning to rpm_t, for up2date
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rpm_domtrans($1_userhelper_t)
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')
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')
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tunable_policy(`! secure_mode',`
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#if we are not in secure mode then we can transition to sysadm_t
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userdom_bin_spec_domtrans_sysadm($1_userhelper_t)
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userdom_sbin_spec_domtrans_sysadm($1_userhelper_t)
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userdom_entry_spec_domtrans_sysadm($1_userhelper_t)
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')
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optional_policy(`logging',`
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logging_send_syslog_msg($1_userhelper_t)
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')
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optional_policy(`nis',`
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nis_use_ypbind($1_userhelper_t)
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')
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optional_policy(`nscd',`
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nscd_use_socket($1_userhelper_t)
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')
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ifdef(`TODO',`
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allow $1_userhelper_t xdm_t:fd use;
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allow $1_userhelper_t xdm_var_run_t:dir search;
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allow $1_userhelper_t xdm_t:fifo_file { getattr read write ioctl };
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optional_policy(`gnome-pty-helper.te',`
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allow $1_userhelper_t gphdomain:fd use;
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')
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optional_policy(`xauth', `
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domain_auto_trans($1_userhelper_t, xauth_exec_t, $1_xauth_t)
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allow $1_userhelper_t $1_xauth_home_t:file { getattr read };
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')
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optional_policy(`mozilla', `
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domain_auto_trans($1_mozilla_t, userhelper_exec_t, $1_userhelper_t)
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')
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# for when the network connection is killed
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dontaudit unpriv_userdomain $1_userhelper_t:process signal;
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')
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')
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########################################
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## <summary>
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## Do not audit attempts to search userhelp configuration
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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(`userhelper_dontaudit_search_config',`
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gen_require(`
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type userhelper_conf_t;
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')
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dontaudit $1 userhelper_conf_t:dir search;
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')
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@ -0,0 +1,13 @@
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policy_module(userhelper,1.0.0)
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########################################
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#
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# Declarations
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#
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type userhelper_conf_t;
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files_type(userhelper_conf_t)
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type userhelper_exec_t;
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files_type(userhelper_conf_t)
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@ -242,7 +242,9 @@ interface(`corecmd_mmap_bin_files',`
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########################################
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## <summary>
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## Execute a file in a bin directory
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## in the specified domain.
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## in the specified domain but do not
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## do it automatically. This is an explicit
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## transition, requiring the caller to use setexeccon().
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## </summary>
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## <desc>
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## <p>
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@ -259,7 +261,7 @@ interface(`corecmd_mmap_bin_files',`
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## </p>
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## <p>
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## This interface was added to handle
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## the ssh-agent policy.
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## the userhelper policy.
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## </p>
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## </desc>
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## <param name="domain">
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@ -269,17 +271,54 @@ interface(`corecmd_mmap_bin_files',`
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## The type of the new process.
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## </param>
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#
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interface(`corecmd_bin_domtrans',`
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interface(`corecmd_bin_spec_domtrans',`
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gen_require(`
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type bin_t;
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class dir search;
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class lnk_file { getattr read };
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')
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allow $1 bin_t:dir search;
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allow $1 bin_t:lnk_file { getattr read };
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domain_auto_trans($1,bin_t,$2)
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domain_trans($1,bin_t,$2)
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')
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########################################
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## <summary>
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## Execute a file in a bin directory
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## in the specified domain.
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## </summary>
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## <desc>
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## <p>
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## Execute a file in a bin directory
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## in the specified domain. This allows
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## the specified domain to execute any file
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## on these filesystems in the specified
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## domain. This is not suggested.
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## </p>
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## <p>
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## No interprocess communication (signals, pipes,
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## etc.) is provided by this interface since
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## the domains are not owned by this module.
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## </p>
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## <p>
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## This interface was added to handle
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## the ssh-agent policy.
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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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## <param name="target_domain">
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## The type of the new process.
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## </param>
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#
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interface(`corecmd_bin_domtrans',`
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gen_require(`
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type bin_t;
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')
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corecmd_bin_spec_domtrans($1,$2)
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type_transition $1 bin_t:process $2;
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')
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########################################
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@ -539,6 +578,49 @@ interface(`corecmd_sbin_domtrans',`
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domain_auto_trans($1,sbin_t,$2)
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')
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########################################
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## <summary>
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## Execute a file in a sbin directory
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## in the specified domain but do not
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## do it automatically. This is an explicit
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## transition, requiring the caller to use setexeccon().
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## </summary>
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## <desc>
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## <p>
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## Execute a file in a sbin directory
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## in the specified domain. This allows
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## the specified domain to execute any file
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## on these filesystems in the specified
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## domain. This is not suggested.
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## </p>
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## <p>
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## No interprocess communication (signals, pipes,
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## etc.) is provided by this interface since
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## the domains are not owned by this module.
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## </p>
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## <p>
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## This interface was added to handle
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## the userhelper policy.
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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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## <param name="target_domain">
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## The type of the new process.
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## </param>
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#
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interface(`corecmd_sbin_spec_domtrans',`
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gen_require(`
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type sbin_t;
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')
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allow $1 sbin_t:dir search;
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allow $1 sbin_t:lnk_file { getattr read };
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domain_trans($1,sbin_t,$2)
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')
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########################################
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## <summary>
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## Check if a shell is executable (DAC-wise).
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@ -564,8 +646,6 @@ interface(`corecmd_check_exec_shell',`
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interface(`corecmd_exec_shell',`
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gen_require(`
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type bin_t, shell_exec_t;
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class dir r_dir_perms;
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class lnk_file r_file_perms;
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')
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allow $1 bin_t:dir r_dir_perms;
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@ -580,8 +660,6 @@ interface(`corecmd_exec_shell',`
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interface(`corecmd_exec_ls',`
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gen_require(`
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type bin_t, ls_exec_t;
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class dir r_dir_perms;
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class lnk_file r_file_perms;
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')
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allow $1 bin_t:dir r_dir_perms;
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@ -617,8 +695,6 @@ interface(`corecmd_exec_ls',`
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interface(`corecmd_shell_spec_domtrans',`
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gen_require(`
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type bin_t, shell_exec_t;
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class dir r_dir_perms;
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class lnk_file r_file_perms;
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')
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allow $1 bin_t:dir r_dir_perms;
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@ -1072,6 +1072,23 @@ interface(`domain_mmap_all_entry_files',`
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allow $1 entry_type:file { getattr read execute };
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')
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########################################
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## <summary>
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## Execute an entry_type in the specified domain.
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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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# cjp: added for userhelper
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interface(`domain_entry_spec_domtrans',`
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gen_require(`
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attribute entry_type;
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')
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domain_trans($1,entry_type,$2)
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')
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########################################
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## <summary>
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## Unconfined access to domains.
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|
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@ -1,5 +1,5 @@
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policy_module(xdm,1.1.0)
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policy_module(xdm,1.1.1)
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########################################
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#
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@ -102,6 +102,10 @@ optional_policy(`locallogin',`
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locallogin_signull(xdm_t)
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')
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optional_policy(`userhelper',`
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userhelper_dontaudit_search_config(xdm_t)
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')
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ifdef(`TODO',`
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# cjp: TODO: integrate strict policy:
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daemon_domain(xdm, `, privuser, privrole, auth_chkpwd, privowner, privmem, nscd_client_domain')
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|
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@ -586,6 +586,26 @@ interface(`auth_exec_pam',`
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can_exec($1,pam_exec_t)
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')
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########################################
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## <summary>
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## Manage var auth files. Used by various other applications
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## and pam applets etc.
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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(`auth_manage_var_auth',`
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gen_require(`
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type var_auth_t;
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||||
')
|
||||
|
||||
files_search_var($1)
|
||||
allow $1 var_auth_t:dir create_dir_perms;
|
||||
allow $1 var_auth_t:file rw_file_perms;
|
||||
allow $1 var_auth_t:lnk_file rw_file_perms;
|
||||
')
|
||||
|
||||
#######################################
|
||||
#
|
||||
# auth_read_pam_pid(domain)
|
||||
|
|
@ -638,6 +658,24 @@ interface(`auth_delete_pam_pid',`
|
|||
allow $1 pam_var_run_t:file { getattr unlink };
|
||||
')
|
||||
|
||||
########################################
|
||||
## <summary>
|
||||
## Manage pam PID files.
|
||||
## </summary>
|
||||
## <param name="domain">
|
||||
## The type of the process performing this action.
|
||||
## </param>
|
||||
#
|
||||
interface(`auth_manage_pam_pid',`
|
||||
gen_require(`
|
||||
type pam_var_run_t;
|
||||
')
|
||||
|
||||
files_search_pids($1)
|
||||
allow $1 pam_var_run_t:dir create_dir_perms;
|
||||
allow $1 pam_var_run_t:file create_file_perms;
|
||||
')
|
||||
|
||||
#######################################
|
||||
#
|
||||
# auth_domtrans_pam_console(domain)
|
||||
|
|
|
|||
|
|
@ -873,3 +873,19 @@ interface(`init_dontaudit_rw_script_pid',`
|
|||
dontaudit $1 initrc_var_run_t:file { getattr read write append };
|
||||
')
|
||||
|
||||
########################################
|
||||
## <summary>
|
||||
## Manage init files like utmp.
|
||||
## </summary>
|
||||
## <param name="domain">
|
||||
## Domain access allowed.
|
||||
## </param>
|
||||
#
|
||||
interface(`init_manage_utmp',`
|
||||
gen_require(`
|
||||
type initrc_var_run_t;
|
||||
')
|
||||
|
||||
files_search_pids($1)
|
||||
allow $1 initrc_var_run_t:file create_file_perms;
|
||||
')
|
||||
|
|
|
|||
|
|
@ -2388,6 +2388,75 @@ interface(`userdom_manage_unpriv_user_shared_mem',`
|
|||
allow $1 unpriv_userdomain:shm create_shm_perms;
|
||||
')
|
||||
|
||||
########################################
|
||||
## <summary>
|
||||
## Execute bin_t in the unprivileged user domains. This
|
||||
## is an explicit transition, requiring the
|
||||
## caller to use setexeccon().
|
||||
## </summary>
|
||||
## <param name="domain">
|
||||
## Domain allowed access.
|
||||
## </param>
|
||||
#
|
||||
interface(`userdom_bin_spec_domtrans_unpriv_users',`
|
||||
gen_require(`
|
||||
attribute unpriv_userdomain;
|
||||
')
|
||||
|
||||
corecmd_bin_spec_domtrans($1,unpriv_userdomain)
|
||||
|
||||
allow $1 unpriv_userdomain:fd use;
|
||||
allow unpriv_userdomain $1:fd use;
|
||||
allow unpriv_userdomain $1:fifo_file rw_file_perms;
|
||||
allow unpriv_userdomain $1:process sigchld;
|
||||
')
|
||||
|
||||
########################################
|
||||
## <summary>
|
||||
## Execute generic sbin programs in all unprivileged user
|
||||
## domains. This is an explicit transition, requiring the
|
||||
## caller to use setexeccon().
|
||||
## </summary>
|
||||
## <param name="domain">
|
||||
## Domain allowed access.
|
||||
## </param>
|
||||
#
|
||||
interface(`userdom_sbin_spec_domtrans_unpriv_users',`
|
||||
gen_require(`
|
||||
attribute unpriv_userdomain;
|
||||
')
|
||||
|
||||
corecmd_sbin_spec_domtrans($1,unpriv_userdomain)
|
||||
|
||||
allow $1 unpriv_userdomain:fd use;
|
||||
allow unpriv_userdomain $1:fd use;
|
||||
allow unpriv_userdomain $1:fifo_file rw_file_perms;
|
||||
allow unpriv_userdomain $1:process sigchld;
|
||||
')
|
||||
|
||||
########################################
|
||||
## <summary>
|
||||
## Execute all entrypoint files in unprivileged user
|
||||
## domains. This is an explicit transition, requiring the
|
||||
## caller to use setexeccon().
|
||||
## </summary>
|
||||
## <param name="domain">
|
||||
## Domain allowed access.
|
||||
## </param>
|
||||
#
|
||||
interface(`userdom_entry_spec_domtrans_unpriv_users',`
|
||||
gen_require(`
|
||||
attribute unpriv_userdomain;
|
||||
')
|
||||
|
||||
domain_entry_spec_domtrans($1,unpriv_userdomain)
|
||||
|
||||
allow $1 unpriv_userdomain:fd use;
|
||||
allow unpriv_userdomain $1:fd use;
|
||||
allow unpriv_userdomain $1:fifo_file rw_file_perms;
|
||||
allow unpriv_userdomain $1:process sigchld;
|
||||
')
|
||||
|
||||
########################################
|
||||
## <summary>
|
||||
## Execute a shell in the sysadm domain.
|
||||
|
|
@ -2414,6 +2483,71 @@ interface(`userdom_shell_domtrans_sysadm',`
|
|||
')
|
||||
')
|
||||
|
||||
########################################
|
||||
## <summary>
|
||||
## Execute a generic bin program in the sysadm domain.
|
||||
## </summary>
|
||||
## <param name="domain">
|
||||
## Domain allowed access.
|
||||
## </param>
|
||||
#
|
||||
interface(`userdom_bin_spec_domtrans_sysadm',`
|
||||
gen_require(`
|
||||
type sysadm_t;
|
||||
')
|
||||
|
||||
corecmd_bin_spec_domtrans($1,sysadm_t)
|
||||
|
||||
allow $1 sysadm_t:fd use;
|
||||
allow sysadm_t $1:fd use;
|
||||
allow sysadm_t $1:fifo_file rw_file_perms;
|
||||
allow sysadm_t $1:process sigchld;
|
||||
')
|
||||
|
||||
########################################
|
||||
## <summary>
|
||||
## Execute a generic sbin program in the sysadm domain.
|
||||
## </summary>
|
||||
## <param name="domain">
|
||||
## Domain allowed access.
|
||||
## </param>
|
||||
#
|
||||
interface(`userdom_sbin_spec_domtrans_sysadm',`
|
||||
gen_require(`
|
||||
type sysadm_t;
|
||||
')
|
||||
|
||||
corecmd_sbin_spec_domtrans($1,sysadm_t)
|
||||
|
||||
allow $1 sysadm_t:fd use;
|
||||
allow sysadm_t $1:fd use;
|
||||
allow sysadm_t $1:fifo_file rw_file_perms;
|
||||
allow sysadm_t $1:process sigchld;
|
||||
')
|
||||
|
||||
########################################
|
||||
## <summary>
|
||||
## Execute all entrypoint files in the sysadm domain. This
|
||||
## is an explicit transition, requiring the
|
||||
## caller to use setexeccon().
|
||||
## </summary>
|
||||
## <param name="domain">
|
||||
## Domain allowed access.
|
||||
## </param>
|
||||
#
|
||||
interface(`userdom_entry_spec_domtrans_sysadm',`
|
||||
gen_require(`
|
||||
type sysadm_t;
|
||||
')
|
||||
|
||||
domain_entry_spec_domtrans($1,sysadm_t)
|
||||
|
||||
allow $1 sysadm_t:fd use;
|
||||
allow sysadm_t $1:fd use;
|
||||
allow sysadm_t $1:fifo_file rw_file_perms;
|
||||
allow sysadm_t $1:process sigchld;
|
||||
')
|
||||
|
||||
########################################
|
||||
## <summary>
|
||||
## Search the staff users home directory.
|
||||
|
|
|
|||
Loading…
Reference in New Issue