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From:   Laurent Bigonville <bigon@debian.org>
To:     selinux-refpolicy@vger.kernel.org
Subject: [RFC 2/3] Add policy for apt-cacher-ng
Date:   Fri, 13 Dec 2019 14:20:15 +0100
Message-Id: <20191213132016.308556-3-bigon@debian.org>
In-Reply-To: <20191213132016.308556-1-bigon@debian.org>
References: <20191213132016.308556-1-bigon@debian.org>
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Sender: selinux-refpolicy-owner@vger.kernel.org
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From: Laurent Bigonville <bigon@bigon.be>

Signed-off-by: Laurent Bigonville <bigon@bigon.be>
---
 policy/modules/kernel/corenetwork.te.in |  1 +
 policy/modules/services/aptcacher.fc    | 11 ++++
 policy/modules/services/aptcacher.if    | 21 +++++++
 policy/modules/services/aptcacher.te    | 81 +++++++++++++++++++++++++
 4 files changed, 114 insertions(+)
 create mode 100644 policy/modules/services/aptcacher.fc
 create mode 100644 policy/modules/services/aptcacher.if
 create mode 100644 policy/modules/services/aptcacher.te

diff --git a/policy/modules/kernel/corenetwork.te.in b/policy/modules/kernel/corenetwork.te.in
index 97870f84..abf0e8d7 100644
--- a/policy/modules/kernel/corenetwork.te.in
+++ b/policy/modules/kernel/corenetwork.te.in
@@ -89,6 +89,7 @@ network_port(amqp, udp,5671-5672,s0, tcp,5671-5672,s0)
 network_port(aol, udp,5190-5193,s0, tcp,5190-5193,s0)
 network_port(apcupsd, tcp,3551,s0, udp,3551,s0)
 network_port(apertus_ldp, tcp,539,s0, udp,539,s0)
+network_port(aptcacher, tcp,3142,s0)
 network_port(armtechdaemon, tcp,9292,s0, udp,9292,s0)
 network_port(asterisk, tcp,1720,s0, udp,2427,s0, udp,2727,s0, udp,4569,s0)
 network_port(audit, tcp,60,s0)
diff --git a/policy/modules/services/aptcacher.fc b/policy/modules/services/aptcacher.fc
new file mode 100644
index 00000000..6835bab0
--- /dev/null
+++ b/policy/modules/services/aptcacher.fc
@@ -0,0 +1,11 @@
+/etc/apt-cacher-ng(/.*)?  gen_context(system_u:object_r:aptcacher_etc_t,s0)
+
+/usr/sbin/apt-cacher-ng -- gen_context(system_u:object_r:aptcacher_exec_t,s0)
+
+/run/apt-cacher-ng(/.*)?  gen_context(system_u:object_r:aptcacher_runtime_t,s0)
+
+/var/cache/apt-cacher-ng(/.*)?	gen_context(system_u:object_r:aptcacher_var_cache_t,s0)
+
+/var/lib/apt-cacher-ng(/.*)? gen_context(system_u:object_r:aptcacher_var_lib_t,s0)
+
+/var/log/apt-cacher-ng(/.*)? gen_context(system_u:object_r:aptcacher_var_log_t,s0)
diff --git a/policy/modules/services/aptcacher.if b/policy/modules/services/aptcacher.if
new file mode 100644
index 00000000..82538dd5
--- /dev/null
+++ b/policy/modules/services/aptcacher.if
@@ -0,0 +1,21 @@
+## <summary>apt-cacher, cache for Debian APT repositories.</summary>
+
+######################################
+## <summary>
+##	read aptcacher config
+## </summary>
+## <param name="domain">
+##	<summary>
+##	Domain allowed to read it.
+##	</summary>
+## </param>
+#
+interface(`aptcacher_read_config',`
+	gen_require(`
+		type aptcacher_etc_t;
+	')
+
+	files_search_etc($1)
+	allow $1 aptcacher_etc_t:dir list_dir_perms;
+	allow $1 aptcacher_etc_t:file mmap_read_file_perms;
+')
diff --git a/policy/modules/services/aptcacher.te b/policy/modules/services/aptcacher.te
new file mode 100644
index 00000000..502ce6e6
--- /dev/null
+++ b/policy/modules/services/aptcacher.te
@@ -0,0 +1,81 @@
+policy_module(aptcacher, 1.0.0)
+
+########################################
+#
+# Declarations
+#
+
+type aptcacher_t;
+type aptcacher_exec_t;
+init_daemon_domain(aptcacher_t, aptcacher_exec_t)
+
+type aptcacher_etc_t;
+files_config_file(aptcacher_etc_t)
+
+type aptcacher_var_cache_t;
+files_type(aptcacher_var_cache_t)
+
+type aptcacher_var_lib_t;
+files_type(aptcacher_var_lib_t)
+
+type aptcacher_var_log_t;
+logging_log_file(aptcacher_var_log_t)
+
+type aptcacher_runtime_t;
+files_pid_file(aptcacher_runtime_t)
+
+########################################
+#
+# Local policy
+#
+
+allow aptcacher_t self:process signal;
+
+allow aptcacher_t self:fifo_file { read write };
+allow aptcacher_t self:netlink_route_socket r_netlink_socket_perms;
+allow aptcacher_t self:tcp_socket create_stream_socket_perms;
+allow aptcacher_t self:unix_dgram_socket create_socket_perms;
+allow aptcacher_t self:unix_stream_socket create_stream_socket_perms;
+
+allow aptcacher_t aptcacher_etc_t:file map;
+list_dirs_pattern(aptcacher_t, aptcacher_etc_t, aptcacher_etc_t)
+read_files_pattern(aptcacher_t, aptcacher_etc_t, aptcacher_etc_t)
+# /etc/apt-cacher-ng/ contains symlinks that point to /var/lib/apt-cacher-ng/
+read_lnk_files_pattern(aptcacher_t, aptcacher_etc_t, aptcacher_etc_t)
+
+allow aptcacher_t aptcacher_var_cache_t:file map;
+manage_dirs_pattern(aptcacher_t, aptcacher_var_cache_t, aptcacher_var_cache_t)
+manage_files_pattern(aptcacher_t, aptcacher_var_cache_t, aptcacher_var_cache_t)
+manage_lnk_files_pattern(aptcacher_t, aptcacher_var_cache_t, aptcacher_var_cache_t)
+
+allow aptcacher_t aptcacher_var_lib_t:file map;
+files_search_var_lib(aptcacher_t)
+read_files_pattern(aptcacher_t, aptcacher_var_lib_t, aptcacher_var_lib_t)
+
+allow aptcacher_t aptcacher_var_log_t:file map;
+logging_search_logs(aptcacher_t)
+manage_files_pattern(aptcacher_t, aptcacher_var_log_t, aptcacher_var_log_t)
+
+manage_sock_files_pattern(aptcacher_t, aptcacher_runtime_t, aptcacher_runtime_t)
+
+kernel_read_vm_overcommit_sysctl(aptcacher_t)
+
+##corecmd_exec_shell(aptcacher_t)
+
+corenet_tcp_bind_aptcacher_port(aptcacher_t)
+corenet_tcp_bind_generic_node(aptcacher_t)
+corenet_tcp_connect_http_port(aptcacher_t)
+
+auth_use_nsswitch(aptcacher_t)
+
+# Uses sd_notify() to inform systemd it has properly started
+init_search_pids(aptcacher_t)
+init_write_runtime_socket(aptcacher_t)
+
+miscfiles_read_generic_certs(aptcacher_t)
+
+# Reads /usr/share/zoneinfo/
+miscfiles_read_localization(aptcacher_t)
+
+# For some reasons it's trying to mmap /etc/hosts.deny
+sysnet_map_config(aptcacher_t)
-- 
2.24.0