This patch against the git refpolicy adds a domain for the certbot client for
letsencrypt. This allows automatic renewal of certbot certificates.
--
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Index: refpolicy-2.20200209/policy/modules/services/certbot.fc
===================================================================
--- /dev/null
+++ refpolicy-2.20200209/policy/modules/services/certbot.fc
@@ -0,0 +1,4 @@
+/usr/bin/certbot -- gen_context(system_u:object_r:certbot_exec_t,s0)
+/usr/bin/letsencrypt -- gen_context(system_u:object_r:certbot_exec_t,s0)
+/var/log/letsencrypt(/.*)? gen_context(system_u:object_r:certbot_log_t,s0)
+/var/lib/letsencrypt(/.*)? gen_context(system_u:object_r:certbot_var_lib_t,s0)
Index: refpolicy-2.20200209/policy/modules/services/certbot.if
===================================================================
--- /dev/null
+++ refpolicy-2.20200209/policy/modules/services/certbot.if
@@ -0,0 +1,46 @@
+## <summary>SSL certificate requesting tool certbot AKA letsencrypt.</summary>
+
+########################################
+## <summary>
+## Execute certbot/letsencrypt in the certbot
+## domain.
+## </summary>
+## <param name="domain">
+## <summary>
+## Domain allowed to transition.
+## </summary>
+## </param>
+#
+interface(`certbot_domtrans',`
+ gen_require(`
+ type certbot_t, certbot_exec_t;
+ ')
+
+ domtrans_pattern($1, certbot_exec_t, certbot_t)
+')
+
+########################################
+## <summary>
+## Execute certbot/letsencrypt in the certbot
+## domain, and allow the specified role
+## the firstboot domain.
+## </summary>
+## <param name="role">
+## <summary>
+## Role allowed access.
+## </summary>
+## </param>
+## <param name="domain">
+## <summary>
+## Domain allowed to transition.
+## </summary>
+## </param>
+#
+interface(`certbot_run',`
+ gen_require(`
+ type certbot_t;
+ ')
+
+ certbot_domtrans($2)
+ role $1 types certbot_t;
+')
Index: refpolicy-2.20200209/policy/modules/services/certbot.te
===================================================================
--- /dev/null
+++ refpolicy-2.20200209/policy/modules/services/certbot.te
@@ -0,0 +1,99 @@
+policy_module(certbot, 1.0.0)
+
+########################################
+#
+# Declarations
+#
+
+type certbot_t;
+type certbot_exec_t;
+init_daemon_domain(certbot_t, certbot_exec_t)
+
+type certbot_log_t;
+logging_log_file(certbot_log_t)
+
+type certbot_var_run_t;
+files_pid_file(certbot_var_run_t)
+
+type certbot_tmp_t;
+files_tmp_file(certbot_tmp_t)
+
+type certbot_tmpfs_t;
+files_tmpfs_file(certbot_tmpfs_t)
+
+type certbot_var_lib_t;
+files_type(certbot_var_lib_t)
+
+########################################
+#
+# Local policy
+#
+
+allow certbot_t self:fifo_file { getattr ioctl read write };
+
+allow certbot_t self:capability { chown dac_override sys_resource };
+
+# this is for certbot to have write-exec memory, I know it is bad
+allow certbot_t self:process execmem;
+allow certbot_t certbot_tmp_t:file { map execute };
+allow certbot_t certbot_tmpfs_t:file { map execute };
+allow certbot_t certbot_var_run_t:file { map execute };
+
+kernel_search_fs_sysctls(certbot_t)
+
+allow certbot_t self:tcp_socket all_tcp_socket_perms;
+allow certbot_t self:netlink_route_socket create_netlink_socket_perms;
+corenet_tcp_bind_generic_node(certbot_t)
+corenet_tcp_connect_http_port(certbot_t)
+
+# bind to http port for standalone mode
+corenet_tcp_bind_http_port(certbot_t)
+
+allow certbot_t self:udp_socket all_udp_socket_perms;
+sysnet_read_config(certbot_t)
+files_read_etc_files(certbot_t)
+
+# for /usr/bin/x86_64-linux-gnu-gcc-8 why?
+corecmd_exec_bin(certbot_t)
+# for /usr/lib/gcc/x86_64-linux-gnu/8/collect2
+libs_exec_lib_files(certbot_t)
+
+libs_exec_ldconfig(certbot_t)
+
+apache_search_config(certbot_t)
+
+# for bin_t map
+corecmd_bin_entry_type(certbot_t)
+corecmd_list_bin(certbot_t)
+miscfiles_read_localization(certbot_t)
+
+miscfiles_read_generic_certs(certbot_t)
+miscfiles_manage_generic_tls_privkey_dirs(certbot_t)
+miscfiles_manage_generic_tls_privkey_files(certbot_t)
+miscfiles_manage_generic_tls_privkey_lnk_files(certbot_t)
+
+manage_files_pattern(certbot_t, certbot_var_run_t, certbot_var_run_t)
+files_pid_filetrans(certbot_t, certbot_var_run_t, file)
+
+logging_search_logs(certbot_t)
+allow certbot_t certbot_log_t:dir manage_dir_perms;
+allow certbot_t certbot_log_t:file manage_file_perms;
+
+files_search_var_lib(certbot_t)
+manage_dirs_pattern(certbot_t, certbot_var_lib_t, certbot_var_lib_t)
+manage_files_pattern(certbot_t, certbot_var_lib_t, certbot_var_lib_t)
+
+manage_files_pattern(certbot_t, certbot_tmp_t, certbot_tmp_t)
+files_tmp_filetrans(certbot_t, certbot_tmp_t, { file })
+
+manage_files_pattern(certbot_t, certbot_tmpfs_t, certbot_tmpfs_t)
+fs_tmpfs_filetrans(certbot_t, certbot_tmpfs_t, { file })
+
+domain_use_interactive_fds(certbot_t)
+userdom_use_user_ptys(certbot_t)
+userdom_dontaudit_search_user_home_dirs(certbot_t)
+
+optional_policy(`
+ # for writing to webroot
+ apache_manage_sys_content(certbot_t)
+')
Index: refpolicy-2.20200209/policy/modules/system/miscfiles.if
===================================================================
--- refpolicy-2.20200209.orig/policy/modules/system/miscfiles.if
+++ refpolicy-2.20200209/policy/modules/system/miscfiles.if
@@ -254,6 +254,26 @@ interface(`miscfiles_manage_generic_tls_
########################################
## <summary>
+## Manage generic SSL/TLS private
+## keys.
+## </summary>
+## <param name="domain">
+## <summary>
+## Domain allowed access.
+## </summary>
+## </param>
+## <rolecap/>
+#
+interface(`miscfiles_manage_generic_tls_privkey_lnk_files',`
+ gen_require(`
+ type tls_privkey_t;
+ ')
+
+ manage_lnk_files_pattern($1, tls_privkey_t, tls_privkey_t)
+')
+
+########################################
+## <summary>
## Read fonts.
## </summary>
## <param name="domain">
