tests/01_configuration/01_ruleset

   1 Testing the ruleset rendered from the default firewall configuration.
   2
   3 -- Testcase --
   4 {%
   5         include("./root/usr/share/firewall4/main.uc", {
   6                 TRACE_CALLS: "stderr",
   7
   8                 getenv: function(varname) {
   9                         switch (varname) {
  10                         case 'ACTION':
  11                                 return 'print';
  12                         }
  13                 }
  14         })
  15 %}
  16 -- End --
  17
  18 -- Expect stdout --
  19 table inet fw4
  20 flush table inet fw4
  21
  22 table inet fw4 {
  23         #
  24         # Flowtable
  25         #
  26
  27         flowtable ft {
  28                 hook ingress priority 0;
  29                 devices = { "eth0", "eth1" };
  30                 flags offload;
  31         }
  32
  33
  34         #
  35         # CT helper definitions
  36         #
  37
  38         ct helper amanda {
  39                 type "amanda" protocol udp;
  40         }
  41
  42         ct helper ftp {
  43                 type "ftp" protocol tcp;
  44         }
  45
  46         ct helper RAS {
  47                 type "RAS" protocol udp;
  48         }
  49
  50         ct helper Q.931 {
  51                 type "Q.931" protocol tcp;
  52         }
  53
  54         ct helper irc {
  55                 type "irc" protocol tcp;
  56         }
  57
  58         ct helper netbios-ns {
  59                 type "netbios-ns" protocol udp;
  60         }
  61
  62         ct helper pptp {
  63                 type "pptp" protocol tcp;
  64         }
  65
  66         ct helper sane {
  67                 type "sane" protocol tcp;
  68         }
  69
  70         ct helper sip {
  71                 type "sip" protocol udp;
  72         }
  73
  74         ct helper snmp {
  75                 type "snmp" protocol udp;
  76         }
  77
  78         ct helper tftp {
  79                 type "tftp" protocol udp;
  80         }
  81
  82         ct helper rtsp {
  83                 type "rtsp" protocol tcp;
  84         }
  85
  86
  87         #
  88         # Defines
  89         #
  90
  91         define lan_devices = { "br-lan" }
  92         define lan_subnets = { 10.0.0.0/24, 192.168.26.0/24, 2001:db8:1000::/60, fd63:e2f:f706::/60 }
  93
  94         define wan_devices = { "pppoe-wan" }
  95         define wan_subnets = { 10.11.12.0/24, 2001:db8:54:321::/64 }
  96
  97
  98         #
  99         # User includes
 100         #
 101
 102         include "/etc/nftables.d/*.nft"
 103
 104
 105         #
 106         # Filter rules
 107         #
 108
 109         chain input {
 110                 type filter hook input priority filter; policy accept;
 111
 112                 iifname "lo" accept comment "!fw4: Accept traffic from loopback"
 113
 114                 ct state established,related accept comment "!fw4: Allow inbound established and related flows"
 115                 tcp flags & (fin | syn | rst | ack) == syn jump syn_flood comment "!fw4: Rate limit TCP syn packets"
 116                 iifname "br-lan" jump input_lan comment "!fw4: Handle lan IPv4/IPv6 input traffic"
 117                 iifname "pppoe-wan" jump input_wan comment "!fw4: Handle wan IPv4/IPv6 input traffic"
 118         }
 119
 120         chain forward {
 121                 type filter hook forward priority filter; policy drop;
 122
 123                 meta l4proto { tcp, udp } flow offload @ft;
 124                 ct state established,related accept comment "!fw4: Allow forwarded established and related flows"
 125                 iifname "br-lan" jump forward_lan comment "!fw4: Handle lan IPv4/IPv6 forward traffic"
 126                 iifname "pppoe-wan" jump forward_wan comment "!fw4: Handle wan IPv4/IPv6 forward traffic"
 127                 jump handle_reject
 128         }
 129
 130         chain output {
 131                 type filter hook output priority filter; policy accept;
 132
 133                 oifname "lo" accept comment "!fw4: Accept traffic towards loopback"
 134
 135                 ct state established,related accept comment "!fw4: Allow outbound established and related flows"
 136                 meta l4proto tcp counter comment "!fw4: Test-Deprecated-Rule-Option"
 137                 oifname "br-lan" jump output_lan comment "!fw4: Handle lan IPv4/IPv6 output traffic"
 138                 oifname "pppoe-wan" jump output_wan comment "!fw4: Handle wan IPv4/IPv6 output traffic"
 139         }
 140
 141         chain prerouting {
 142                 type filter hook prerouting priority filter; policy accept;
 143                 iifname "br-lan" jump helper_lan comment "!fw4: Handle lan IPv4/IPv6 helper assignment"
 144         }
 145
 146         chain handle_reject {
 147                 meta l4proto tcp reject with tcp reset comment "!fw4: Reject TCP traffic"
 148                 reject with icmpx type port-unreachable comment "!fw4: Reject any other traffic"
 149         }
 150
 151         chain syn_flood {
 152                 limit rate 25/second burst 50 packets return comment "!fw4: Accept SYN packets below rate-limit"
 153                 drop comment "!fw4: Drop excess packets"
 154         }
 155
 156         chain input_lan {
 157                 jump accept_from_lan
 158         }
 159
 160         chain output_lan {
 161                 jump accept_to_lan
 162         }
 163
 164         chain forward_lan {
 165                 jump accept_to_wan comment "!fw4: Accept lan to wan forwarding"
 166                 jump accept_to_lan
 167         }
 168
 169         chain helper_lan {
 170                 meta l4proto udp udp dport 10080 ct helper set "amanda" comment "!fw4: Amanda backup and archiving proto"
 171                 meta l4proto tcp tcp dport 21 ct helper set "ftp" comment "!fw4: FTP passive connection tracking"
 172                 meta l4proto udp udp dport 1719 ct helper set "RAS" comment "!fw4: RAS proto tracking"
 173                 meta l4proto tcp tcp dport 1720 ct helper set "Q.931" comment "!fw4: Q.931 proto tracking"
 174                 meta nfproto ipv4 meta l4proto tcp tcp dport 6667 ct helper set "irc" comment "!fw4: IRC DCC connection tracking"
 175                 meta nfproto ipv4 meta l4proto udp udp dport 137 ct helper set "netbios-ns" comment "!fw4: NetBIOS name service broadcast tracking"
 176                 meta nfproto ipv4 meta l4proto tcp tcp dport 1723 ct helper set "pptp" comment "!fw4: PPTP VPN connection tracking"
 177                 meta l4proto tcp tcp dport 6566 ct helper set "sane" comment "!fw4: SANE scanner connection tracking"
 178                 meta l4proto udp udp dport 5060 ct helper set "sip" comment "!fw4: SIP VoIP connection tracking"
 179                 meta nfproto ipv4 meta l4proto udp udp dport 161 ct helper set "snmp" comment "!fw4: SNMP monitoring connection tracking"
 180                 meta l4proto udp udp dport 69 ct helper set "tftp" comment "!fw4: TFTP connection tracking"
 181                 meta nfproto ipv4 meta l4proto tcp tcp dport 554 ct helper set "rtsp" comment "!fw4: RTSP connection tracking"
 182         }
 183
 184         chain accept_from_lan {
 185                 iifname "br-lan" counter accept comment "!fw4: accept lan IPv4/IPv6 traffic"
 186         }
 187
 188         chain accept_to_lan {
 189                 oifname "br-lan" counter accept comment "!fw4: accept lan IPv4/IPv6 traffic"
 190         }
 191
 192         chain input_wan {
 193                 meta nfproto ipv4 udp dport 68 counter accept comment "!fw4: Allow-DHCP-Renew"
 194                 meta nfproto ipv4 icmp type 8 counter accept comment "!fw4: Allow-Ping"
 195                 meta nfproto ipv4 meta l4proto igmp counter accept comment "!fw4: Allow-IGMP"
 196                 ip6 saddr fc00::/6 ip6 daddr fc00::/6 udp dport 546 counter accept comment "!fw4: Allow-DHCPv6"
 197                 ip6 saddr fe80::/10 icmpv6 type . icmpv6 code { 130 . 0, 131 . 0, 132 . 0, 143 . 0 } counter accept comment "!fw4: Allow-MLD"
 198                 meta nfproto ipv6 icmpv6 type { 128, 129, 1, 3, 133, 134 } limit rate 1000/second counter accept comment "!fw4: Allow-ICMPv6-Input"
 199                 meta nfproto ipv6 icmpv6 type . icmpv6 code { 2 . 0, 4 . 0, 4 . 1, 135 . 0, 136 . 0 } limit rate 1000/second counter accept comment "!fw4: Allow-ICMPv6-Input"
 200                 jump reject_from_wan
 201         }
 202
 203         chain output_wan {
 204                 jump accept_to_wan
 205         }
 206
 207         chain forward_wan {
 208                 meta nfproto ipv6 icmpv6 type { 128, 129, 1, 3 } limit rate 1000/second counter accept comment "!fw4: Allow-ICMPv6-Forward"
 209                 meta nfproto ipv6 icmpv6 type . icmpv6 code { 2 . 0, 4 . 0, 4 . 1 } limit rate 1000/second counter accept comment "!fw4: Allow-ICMPv6-Forward"
 210                 meta l4proto esp counter jump accept_to_lan comment "!fw4: Allow-IPSec-ESP"
 211                 udp dport 500 counter jump accept_to_lan comment "!fw4: Allow-ISAKMP"
 212                 jump reject_to_wan
 213         }
 214
 215         chain accept_to_wan {
 216                 oifname "pppoe-wan" counter accept comment "!fw4: accept wan IPv4/IPv6 traffic"
 217         }
 218
 219         chain reject_from_wan {
 220                 iifname "pppoe-wan" counter jump handle_reject comment "!fw4: reject wan IPv4/IPv6 traffic"
 221         }
 222
 223         chain reject_to_wan {
 224                 oifname "pppoe-wan" counter jump handle_reject comment "!fw4: reject wan IPv4/IPv6 traffic"
 225         }
 226
 227
 228         #
 229         # NAT rules
 230         #
 231
 232         chain dstnat {
 233                 type nat hook prerouting priority dstnat; policy accept;
 234         }
 235
 236         chain srcnat {
 237                 type nat hook postrouting priority srcnat; policy accept;
 238                 oifname "pppoe-wan" jump srcnat_wan comment "!fw4: Handle wan IPv4/IPv6 srcnat traffic"
 239         }
 240
 241         chain srcnat_wan {
 242                 meta nfproto ipv4 masquerade comment "!fw4: Masquerade IPv4 wan traffic"
 243         }
 244
 245
 246         #
 247         # Raw rules (notrack)
 248         #
 249
 250         chain raw_prerouting {
 251                 type filter hook prerouting priority raw; policy accept;
 252         }
 253
 254         chain raw_output {
 255                 type filter hook output priority raw; policy accept;
 256         }
 257
 258
 259         #
 260         # Mangle rules
 261         #
 262
 263         chain mangle_prerouting {
 264                 type filter hook prerouting priority mangle; policy accept;
 265         }
 266
 267         chain mangle_postrouting {
 268                 type filter hook postrouting priority mangle; policy accept;
 269         }
 270
 271         chain mangle_input {
 272                 type filter hook input priority mangle; policy accept;
 273         }
 274
 275         chain mangle_output {
 276                 type route hook output priority mangle; policy accept;
 277         }
 278
 279         chain mangle_forward {
 280                 type filter hook forward priority mangle; policy accept;
 281                 iifname "pppoe-wan" tcp flags syn tcp option maxseg size set rt mtu comment "!fw4: Zone wan IPv4/IPv6 ingress MTU fixing"
 282                 oifname "pppoe-wan" tcp flags syn tcp option maxseg size set rt mtu comment "!fw4: Zone wan IPv4/IPv6 egress MTU fixing"
 283         }
 284 }
 285 -- End --
 286
 287 -- Expect stderr --
 288 [call] ctx.call object <network.interface> method <dump> args <null>
 289 [call] ctx.call object <service> method <get_data> args <{ "type": "firewall" }>
 290 [call] fs.open path </proc/version> mode <r>
 291 [call] fs.stat path </sys/module/nf_conntrack_amanda>
 292 [call] fs.stat path </sys/module/nf_conntrack_ftp>
 293 [call] fs.stat path </sys/module/nf_conntrack_h323>
 294 [call] fs.stat path </sys/module/nf_conntrack_h323>
 295 [call] fs.stat path </sys/module/nf_conntrack_irc>
 296 [call] fs.stat path </sys/module/nf_conntrack_netbios_ns>
 297 [call] fs.stat path </sys/module/nf_conntrack_pptp>
 298 [call] fs.stat path </sys/module/nf_conntrack_sane>
 299 [call] fs.stat path </sys/module/nf_conntrack_sip>
 300 [call] fs.stat path </sys/module/nf_conntrack_snmp>
 301 [call] fs.stat path </sys/module/nf_conntrack_tftp>
 302 [call] fs.stat path </sys/module/nf_conntrack_rtsp>
 303 [!] Section @defaults[0] specifies unknown option 'unknown_defaults_option'
 304 [!] Section @rule[9] (Test-Deprecated-Rule-Option) option '_name' is deprecated by fw4
 305 [!] Section @rule[9] (Test-Deprecated-Rule-Option) specifies unknown option 'unknown_rule_option'
 306 [call] fs.glob pattern </usr/share/nftables.d/ruleset-pre//*.nft>
 307 [call] fs.glob pattern </usr/share/nftables.d/ruleset-post//*.nft>
 308 [call] fs.glob pattern </usr/share/nftables.d/table-pre//*.nft>
 309 [call] fs.glob pattern </usr/share/nftables.d/table-post//*.nft>
 310 [call] fs.lsdir path </usr/share/nftables.d/chain-pre>
 311 [call] fs.lsdir path </usr/share/nftables.d/chain-post>
 312 [call] ctx.call object <network.device> method <status> args <null>
 313 [call] fs.opendir path </sys/class/net/br-lan>
 314 [call] fs.opendir path </sys/class/net/eth0>
 315 [call] fs.opendir path </sys/class/net/eth1>
 316 [call] system command </usr/sbin/nft -c '
 317                 add table inet fw4-hw-offload-test;
 318                 add flowtable inet fw4-hw-offload-test ft {
 319                         hook ingress priority 0;
 320                         devices = { "eth0", "eth1" };
 321                         flags offload;
 322                 }
 323         ' 2>/dev/null> timeout <null>
 324 [call] fs.popen cmdline </usr/sbin/nft --terse --json list flowtables inet> mode <r>
 325 [call] fs.readfile path </sys/class/net/br-lan/flags> limit <null>
 326 [call] fs.readfile path </sys/class/net/br-lan/flags> limit <null>
 327 -- End --