178 lines
4.5 KiB
Plaintext
178 lines
4.5 KiB
Plaintext
## <summary>Execute a command with a substitute user</summary>
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#######################################
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## <summary>
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## The role template for the sudo 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 domain which is allowed
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## to change the linux user id, to run commands as a different
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## user.
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## </p>
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## </desc>
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## <param name="role_prefix">
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## <summary>
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## The prefix of the user role (e.g., user
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## is the prefix for user_r).
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## </summary>
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## </param>
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## <param name="user_role">
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## <summary>
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## The user role.
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## </summary>
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## </param>
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## <param name="user_domain">
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## <summary>
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## The user domain associated with the role.
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## </summary>
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## </param>
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#
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template(`sudo_role_template',`
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gen_require(`
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type sudo_exec_t;
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attribute sudodomain;
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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_sudo_t, sudodomain;
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application_domain($1_sudo_t, sudo_exec_t)
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domain_interactive_fd($1_sudo_t)
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domain_role_change_exemption($1_sudo_t)
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ubac_constrained($1_sudo_t)
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role $2 types $1_sudo_t;
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##############################
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#
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# Local Policy
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#
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# Use capabilities.
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allow $1_sudo_t self:capability { fowner setuid setgid dac_override sys_nice sys_resource };
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allow $1_sudo_t self:process ~{ ptrace setcurrent setexec setfscreate setrlimit execmem execstack execheap };
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allow $1_sudo_t self:process { setexec setrlimit };
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allow $1_sudo_t self:fd use;
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allow $1_sudo_t self:fifo_file rw_fifo_file_perms;
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allow $1_sudo_t self:shm create_shm_perms;
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allow $1_sudo_t self:sem create_sem_perms;
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allow $1_sudo_t self:msgq create_msgq_perms;
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allow $1_sudo_t self:msg { send receive };
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allow $1_sudo_t self:unix_dgram_socket create_socket_perms;
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allow $1_sudo_t self:unix_stream_socket create_stream_socket_perms;
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allow $1_sudo_t self:unix_dgram_socket sendto;
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allow $1_sudo_t self:unix_stream_socket connectto;
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allow $1_sudo_t self:key manage_key_perms;
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allow $1_sudo_t $3:key search;
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# Enter this derived domain from the user domain
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domtrans_pattern($3, sudo_exec_t, $1_sudo_t)
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# By default, revert to the calling domain when a shell is executed.
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corecmd_shell_domtrans($1_sudo_t, $3)
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corecmd_bin_domtrans($1_sudo_t, $3)
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allow $3 $1_sudo_t:fd use;
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allow $3 $1_sudo_t:fifo_file rw_file_perms;
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allow $3 $1_sudo_t:process signal_perms;
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kernel_read_kernel_sysctls($1_sudo_t)
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kernel_read_system_state($1_sudo_t)
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kernel_link_key($1_sudo_t)
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corecmd_read_bin_symlinks($1_sudo_t)
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corecmd_exec_all_executables($1_sudo_t)
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dev_read_urand($1_sudo_t)
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dev_rw_generic_usb_dev($1_sudo_t)
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dev_read_sysfs($1_sudo_t)
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domain_use_interactive_fds($1_sudo_t)
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domain_sigchld_interactive_fds($1_sudo_t)
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domain_getattr_all_entry_files($1_sudo_t)
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files_read_etc_files($1_sudo_t)
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files_read_var_files($1_sudo_t)
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files_read_usr_symlinks($1_sudo_t)
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files_getattr_usr_files($1_sudo_t)
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# for some PAM modules and for cwd
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files_dontaudit_search_home($1_sudo_t)
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files_list_tmp($1_sudo_t)
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fs_search_auto_mountpoints($1_sudo_t)
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fs_getattr_xattr_fs($1_sudo_t)
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selinux_validate_context($1_sudo_t)
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selinux_compute_relabel_context($1_sudo_t)
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term_relabel_all_ttys($1_sudo_t)
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term_relabel_all_ptys($1_sudo_t)
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auth_run_chk_passwd($1_sudo_t, $2)
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# sudo stores a token in the pam_pid directory
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auth_manage_pam_pid($1_sudo_t)
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auth_use_nsswitch($1_sudo_t)
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init_rw_utmp($1_sudo_t)
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logging_send_audit_msgs($1_sudo_t)
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logging_send_syslog_msg($1_sudo_t)
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miscfiles_read_localization($1_sudo_t)
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seutil_search_default_contexts($1_sudo_t)
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seutil_libselinux_linked($1_sudo_t)
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userdom_spec_domtrans_all_users($1_sudo_t)
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userdom_manage_user_home_content_files($1_sudo_t)
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userdom_manage_user_home_content_symlinks($1_sudo_t)
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userdom_manage_user_tmp_files($1_sudo_t)
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userdom_manage_user_tmp_symlinks($1_sudo_t)
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userdom_use_user_terminals($1_sudo_t)
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# for some PAM modules and for cwd
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userdom_dontaudit_search_user_home_content($1_sudo_t)
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ifdef(`hide_broken_symptoms', `
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dontaudit $1_sudo_t $3:socket_class_set { read write };
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')
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tunable_policy(`use_nfs_home_dirs',`
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fs_manage_nfs_files($1_sudo_t)
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')
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tunable_policy(`use_samba_home_dirs',`
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fs_manage_cifs_files($1_sudo_t)
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')
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optional_policy(`
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dbus_system_bus_client($1_sudo_t)
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')
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optional_policy(`
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fprintd_dbus_chat($1_sudo_t)
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')
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')
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########################################
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## <summary>
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## Send a SIGCHLD signal to the sudo domain.
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## </summary>
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## <param name="domain">
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## <summary>
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## Domain allowed access.
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## </summary>
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## </param>
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#
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interface(`sudo_sigchld',`
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gen_require(`
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attribute sudodomain;
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')
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allow $1 sudodomain:process sigchld;
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')
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