de8d85febb
Selinux policy changes:
- Allow watch,read on /var/run/netns directory and its content
- Add sys_admin capability
It seems like sys_admin is needed because frr is using setns function to change the actual namespace. Full log here:
type=PROCTITLE msg=audit(06/29/2023 03:42:07.692:559) : proctitle=/usr/libexec/frr/zebra -d -F traditional -A 127.0.0.1 -s 90000000 -n
type=SYSCALL msg=audit(06/29/2023 03:42:07.692:559) : arch=x86_64 syscall=setns success=no exit=EPERM(Operation not permitted) a0=0x11 a1=CLONE_NEWNET a2=0x0 a3=0x0 items=0 ppid=3692 pid=3701 auid=unset uid=frr gid=frr euid=frr suid=frr fsuid=frr egid=frr sgid=frr fsgid=frr tty=(none) ses=unset comm=zebra exe=/usr/libexec/frr/zebra subj=system_u:system_r:frr_t:s0 key=(null)
type=AVC msg=audit(06/29/2023 03:42:07.692:559) : avc: denied { sys_admin } for pid=3701 comm=zebra capability=sys_admin scontext=system_u:system_r:frr_t:s0 tcontext=system_u:system_r:frr_t:s0 tclass=capability permissive=0
Resolves: #2216073 - SELinux is preventing FRR-Zebra to access to network namespaces
123 lines
3.4 KiB
Plaintext
123 lines
3.4 KiB
Plaintext
policy_module(frr, 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 frr_t;
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type frr_exec_t;
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init_daemon_domain(frr_t, frr_exec_t)
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type frr_log_t;
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logging_log_file(frr_log_t)
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type frr_tmp_t;
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files_tmp_file(frr_tmp_t)
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type frr_lock_t;
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files_lock_file(frr_lock_t)
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type frr_conf_t;
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files_config_file(frr_conf_t)
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type frr_unit_file_t;
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systemd_unit_file(frr_unit_file_t)
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type frr_var_run_t;
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files_pid_file(frr_var_run_t)
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########################################
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#
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# frr local policy
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#
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allow frr_t self:capability { chown dac_override dac_read_search kill net_bind_service net_raw setgid setuid net_admin sys_admin };
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allow frr_t self:netlink_route_socket rw_netlink_socket_perms;
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allow frr_t self:packet_socket { create setopt };
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allow frr_t self:process { setcap setpgid };
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allow frr_t self:rawip_socket create_socket_perms;
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allow frr_t self:tcp_socket { connect connected_stream_socket_perms };
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allow frr_t self:udp_socket create_socket_perms;
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allow frr_t self:unix_stream_socket connectto;
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allow frr_t frr_conf_t:dir list_dir_perms;
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manage_files_pattern(frr_t, frr_conf_t, frr_conf_t)
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read_lnk_files_pattern(frr_t, frr_conf_t, frr_conf_t)
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manage_dirs_pattern(frr_t, frr_log_t, frr_log_t)
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manage_files_pattern(frr_t, frr_log_t, frr_log_t)
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manage_lnk_files_pattern(frr_t, frr_log_t, frr_log_t)
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logging_log_filetrans(frr_t, frr_log_t, { dir file lnk_file })
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allow frr_t frr_tmp_t:file map;
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manage_dirs_pattern(frr_t, frr_tmp_t, frr_tmp_t)
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manage_files_pattern(frr_t, frr_tmp_t, frr_tmp_t)
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files_tmp_filetrans(frr_t, frr_tmp_t, { file dir })
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manage_files_pattern(frr_t, frr_lock_t, frr_lock_t)
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manage_lnk_files_pattern(frr_t, frr_lock_t, frr_lock_t)
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files_lock_filetrans(frr_t, frr_lock_t, { file lnk_file })
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manage_dirs_pattern(frr_t, frr_var_run_t, frr_var_run_t)
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manage_files_pattern(frr_t, frr_var_run_t, frr_var_run_t)
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manage_lnk_files_pattern(frr_t, frr_var_run_t, frr_var_run_t)
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manage_sock_files_pattern(frr_t, frr_var_run_t, frr_var_run_t)
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files_pid_filetrans(frr_t, frr_var_run_t, { dir file lnk_file })
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allow frr_t frr_exec_t:dir search_dir_perms;
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can_exec(frr_t, frr_exec_t)
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kernel_read_network_state(frr_t)
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kernel_rw_net_sysctls(frr_t)
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kernel_read_system_state(frr_t)
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auth_use_nsswitch(frr_t)
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corecmd_exec_bin(frr_t)
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corenet_tcp_bind_appswitch_emp_port(frr_t)
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corenet_udp_bind_bfd_control_port(frr_t)
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corenet_udp_bind_bfd_echo_port(frr_t)
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corenet_udp_bind_bfd_multi_port(frr_t)
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corenet_tcp_bind_bgp_port(frr_t)
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corenet_tcp_connect_bgp_port(frr_t)
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corenet_tcp_bind_cmadmin_port(frr_t)
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corenet_udp_bind_cmadmin_port(frr_t)
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corenet_tcp_bind_firepower_port(frr_t)
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corenet_tcp_bind_generic_port(frr_t)
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corenet_tcp_bind_priority_e_com_port(frr_t)
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corenet_udp_bind_router_port(frr_t)
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corenet_tcp_bind_qpasa_agent_port(frr_t)
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corenet_tcp_bind_smntubootstrap_port(frr_t)
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corenet_tcp_bind_versa_tek_port(frr_t)
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corenet_tcp_bind_zebra_port(frr_t)
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domain_use_interactive_fds(frr_t)
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fs_read_nsfs_files(frr_t)
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sysnet_exec_ifconfig(frr_t)
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sysnet_read_ifconfig_run(frr_t)
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sysnet_watch_ifconfig_run(frr_t)
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userdom_read_admin_home_files(frr_t)
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optional_policy(`
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logging_send_syslog_msg(frr_t)
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')
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optional_policy(`
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modutils_exec_kmod(frr_t)
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modutils_getattr_module_deps(frr_t)
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modutils_read_module_config(frr_t)
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modutils_read_module_deps_files(frr_t)
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')
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optional_policy(`
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networkmanager_read_state(frr_t)
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')
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optional_policy(`
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userdom_admin_home_dir_filetrans(frr_t, frr_conf_t, file, ".history_frr")
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')
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