frr-8.5.1-4

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

frr.if

@@ -160,3 +160,56 @@ interface(`frr_admin',`
 		systemd_read_fifo_file_passwd_run($1)
 	')
 ')
+
+########################################
+#
+# Interface compatibility blocks
+#
+# The following definitions ensure compatibility with distribution policy
+# versions that do not contain given interfaces (epel, or older Fedora
+# releases).
+# Each block tests for existence of given interface and defines it if needed.
+#
+
+######################################
+## <summary>
+##	Watch ifconfig_var_run_t directories
+## </summary>
+## <param name="domain">
+##	<summary>
+##	Domain allowed access.
+##	</summary>
+## </param>
+#
+ifndef(`sysnet_watch_ifconfig_run',`
+	interface(`sysnet_watch_ifconfig_run',`
+		gen_require(`
+			type ifconfig_var_run_t;
+		')
+
+		watch_dirs_pattern($1, ifconfig_var_run_t, ifconfig_var_run_t)
+	')
+')
+
+########################################
+## <summary>
+##	Read ifconfig_var_run_t files and link files
+## </summary>
+## <param name="domain">
+##	<summary>
+##      Domain allowed access.
+##	</summary>
+## </param>
+#
+ifndef(`sysnet_read_ifconfig_run',`
+	interface(`sysnet_read_ifconfig_run',`
+		gen_require(`
+			type ifconfig_var_run_t;
+		')
+
+		list_dirs_pattern($1, ifconfig_var_run_t, ifconfig_var_run_t)
+		read_files_pattern($1, ifconfig_var_run_t, ifconfig_var_run_t)
+		read_lnk_files_pattern($1, ifconfig_var_run_t, ifconfig_var_run_t)
+	')
+')
+