diff options
Diffstat (limited to 'contrib/selinux')
-rw-r--r-- | contrib/selinux/passt-repair.te | 16 | ||||
-rw-r--r-- | contrib/selinux/passt.te | 4 | ||||
-rw-r--r-- | contrib/selinux/pasta.fc | 10 | ||||
-rw-r--r-- | contrib/selinux/pasta.te | 44 |
4 files changed, 59 insertions, 15 deletions
diff --git a/contrib/selinux/passt-repair.te b/contrib/selinux/passt-repair.te index f171be6..7157dfb 100644 --- a/contrib/selinux/passt-repair.te +++ b/contrib/selinux/passt-repair.te @@ -61,11 +61,11 @@ allow passt_repair_t unconfined_t:unix_stream_socket { connectto read write }; allow passt_repair_t passt_t:unix_stream_socket { connectto read write }; allow passt_repair_t user_tmp_t:unix_stream_socket { connectto read write }; -allow passt_repair_t user_tmp_t:dir search; +allow passt_repair_t user_tmp_t:dir { getattr read search watch }; -allow passt_repair_t unconfined_t:sock_file { read write }; -allow passt_repair_t passt_t:sock_file { read write }; -allow passt_repair_t user_tmp_t:sock_file { read write }; +allow passt_repair_t unconfined_t:sock_file { getattr read write }; +allow passt_repair_t passt_t:sock_file { getattr read write }; +allow passt_repair_t user_tmp_t:sock_file { getattr read write }; allow passt_repair_t unconfined_t:tcp_socket { read setopt write }; allow passt_repair_t passt_t:tcp_socket { read setopt write }; @@ -80,8 +80,8 @@ allow passt_repair_t passt_t:tcp_socket { read setopt write }; allow passt_repair_t qemu_var_run_t:unix_stream_socket { connectto read write }; allow passt_repair_t virt_var_run_t:unix_stream_socket { connectto read write }; -allow passt_repair_t qemu_var_run_t:dir search; -allow passt_repair_t virt_var_run_t:dir search; +allow passt_repair_t qemu_var_run_t:dir { getattr read search watch }; +allow passt_repair_t virt_var_run_t:dir { getattr read search watch }; -allow passt_repair_t qemu_var_run_t:sock_file { read write }; -allow passt_repair_t virt_var_run_t:sock_file { read write }; +allow passt_repair_t qemu_var_run_t:sock_file { getattr read write }; +allow passt_repair_t virt_var_run_t:sock_file { getattr read write }; diff --git a/contrib/selinux/passt.te b/contrib/selinux/passt.te index f8ea672..eb9ce72 100644 --- a/contrib/selinux/passt.te +++ b/contrib/selinux/passt.te @@ -49,7 +49,7 @@ require { type proc_net_t; type node_t; class tcp_socket { create accept listen name_bind name_connect getattr ioctl }; - class udp_socket { create accept listen }; + class udp_socket { create accept listen getattr }; class icmp_socket { bind create name_bind node_bind setopt read write }; class sock_file { create unlink write }; @@ -133,7 +133,7 @@ allow passt_t node_t:icmp_socket { name_bind node_bind }; allow passt_t port_t:icmp_socket name_bind; allow passt_t self:tcp_socket { create getopt setopt connect bind listen accept shutdown read write getattr ioctl }; -allow passt_t self:udp_socket { create getopt setopt connect bind read write }; +allow passt_t self:udp_socket { create getopt setopt connect bind read write getattr }; allow passt_t self:icmp_socket { bind create setopt read write }; allow passt_t user_tmp_t:dir { add_name write }; diff --git a/contrib/selinux/pasta.fc b/contrib/selinux/pasta.fc index 41ee46d..e4aefc4 100644 --- a/contrib/selinux/pasta.fc +++ b/contrib/selinux/pasta.fc @@ -8,7 +8,9 @@ # Copyright (c) 2022 Red Hat GmbH # Author: Stefano Brivio <sbrivio@redhat.com> -/usr/bin/pasta system_u:object_r:pasta_exec_t:s0 -/usr/bin/pasta.avx2 system_u:object_r:pasta_exec_t:s0 -/tmp/pasta\.pcap system_u:object_r:pasta_log_t:s0 -/var/run/pasta\.pid system_u:object_r:pasta_pid_t:s0 +/usr/bin/pasta system_u:object_r:pasta_exec_t:s0 +/usr/bin/pasta.avx2 system_u:object_r:pasta_exec_t:s0 +/tmp/pasta\.pcap system_u:object_r:pasta_log_t:s0 +/var/run/pasta\.pid system_u:object_r:pasta_pid_t:s0 +/run/user/%{USERID}/netns system_u:object_r:ifconfig_var_run_t:s0 +/run/user/%{USERID}/containers/networks/rootless-netns system_u:object_r:ifconfig_var_run_t:s0 diff --git a/contrib/selinux/pasta.te b/contrib/selinux/pasta.te index 89c8043..9440d05 100644 --- a/contrib/selinux/pasta.te +++ b/contrib/selinux/pasta.te @@ -89,6 +89,15 @@ require { class capability { sys_tty_config setuid setgid }; class cap_userns { setpcap sys_admin sys_ptrace net_bind_service net_admin }; class user_namespace create; + + # Container requires + attribute_role usernetctl_roles; + role container_user_r; + role staff_r; + role user_r; + type container_runtime_t; + type container_t; + type systemd_user_runtimedir_t; } type pasta_t; @@ -113,6 +122,9 @@ init_daemon_domain(pasta_t, pasta_exec_t) allow pasta_t self:capability { setpcap net_bind_service sys_tty_config dac_read_search net_admin sys_resource setuid setgid }; allow pasta_t self:cap_userns { setpcap sys_admin sys_ptrace net_admin net_bind_service }; +# pasta only calls setuid and setgid with the current UID and GID, so this +# denial is harmless. See https://bugzilla.redhat.com/show_bug.cgi?id=2330512#c10 +dontaudit pasta_t self:cap_userns { setgid setuid }; allow pasta_t self:user_namespace create; auth_read_passwd(pasta_t) @@ -130,7 +142,7 @@ allow pasta_t user_home_t:file { open read getattr setattr execute execute_no_tr allow pasta_t user_home_dir_t:dir { search getattr open add_name read write }; allow pasta_t user_home_dir_t:file { create open read write }; allow pasta_t tmp_t:dir { add_name mounton remove_name write }; -allow pasta_t tmpfs_t:filesystem mount; +allow pasta_t tmpfs_t:filesystem { getattr mount }; allow pasta_t fs_t:filesystem unmount; allow pasta_t root_t:dir mounton; manage_files_pattern(pasta_t, pasta_pid_t, pasta_pid_t) @@ -156,6 +168,11 @@ allow pasta_t tmp_t:sock_file { create unlink write }; allow pasta_t self:tcp_socket create_stream_socket_perms; corenet_tcp_sendrecv_generic_node(pasta_t) corenet_tcp_bind_generic_node(pasta_t) +allow pasta_t container_runtime_t:dir { open read search }; +allow pasta_t container_runtime_t:fifo_file { getattr write }; +allow pasta_t container_runtime_t:file read; +allow pasta_t container_runtime_t:lnk_file read; +allow pasta_t container_t:lnk_file read; allow pasta_t pasta_port_t:tcp_socket { name_bind name_connect }; allow pasta_t pasta_port_t:udp_socket { name_bind }; allow pasta_t http_port_t:tcp_socket { name_bind name_connect }; @@ -213,3 +230,28 @@ allow pasta_t netutils_t:process { noatsecure rlimitinh siginh }; allow pasta_t ping_t:process { noatsecure rlimitinh siginh }; allow pasta_t user_tty_device_t:chr_file { append read write }; allow pasta_t user_devpts_t:chr_file { append read write }; + +# Allow network administration commands for non-privileged users +roleattribute container_user_r usernetctl_roles; +roleattribute staff_r usernetctl_roles; +roleattribute user_r usernetctl_roles; +role usernetctl_roles types pasta_t; + +# Make pasta in a container run under the pasta_t context +type_transition container_runtime_t pasta_exec_t : process pasta_t; +allow container_runtime_t pasta_t:process transition; + +# Label the user network namespace files +type_transition container_runtime_t user_tmp_t : dir ifconfig_var_run_t "netns"; +type_transition container_runtime_t user_tmp_t : dir ifconfig_var_run_t "rootless-netns"; +allow pasta_t ifconfig_var_run_t:dir { add_name open rmdir write }; +allow pasta_t ifconfig_var_run_t:file { create open write }; +allow systemd_user_runtimedir_t ifconfig_var_run_t:dir rmdir; + +# Allow pasta to bind to any port +bool pasta_bind_all_ports true; +if (pasta_bind_all_ports) { + allow pasta_t port_type:icmp_socket { accept getopt name_bind }; + allow pasta_t port_type:tcp_socket { accept getopt name_bind name_connect }; + allow pasta_t port_type:udp_socket { accept getopt name_bind }; +} |