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Commit | Line | Data |
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63e8c70e DM |
1 | package PVE::FirewallSimulator; |
2 | ||
3 | use strict; | |
4 | use warnings; | |
5 | use Data::Dumper; | |
6 | use PVE::Firewall; | |
7 | use File::Basename; | |
8 | use Net::IP; | |
09e11ad4 WB |
9 | |
10 | # dynamically include PVE::QemuServer and PVE::LXC | |
11 | # to avoid dependency problems | |
12 | my $have_qemu_server; | |
13 | eval { | |
14 | require PVE::QemuServer; | |
15 | $have_qemu_server = 1; | |
16 | }; | |
17 | ||
18 | my $have_lxc; | |
19 | eval { | |
20 | require PVE::LXC; | |
21 | $have_lxc = 1; | |
22 | }; | |
63e8c70e | 23 | |
45c8eeb8 | 24 | my $mark = 0; |
63e8c70e DM |
25 | my $trace; |
26 | my $debug = 0; | |
27 | ||
fe3d79b4 WB |
28 | my $NUMBER_RE = qr/0x[0-9a-fA-F]+|\d+/; |
29 | ||
63e8c70e DM |
30 | sub debug { |
31 | my $new_value = shift; | |
63e8c70e | 32 | $debug = $new_value if defined($new_value); |
63e8c70e DM |
33 | return $debug; |
34 | } | |
75a12a9d | 35 | |
63e8c70e DM |
36 | sub reset_trace { |
37 | $trace = ''; | |
38 | } | |
39 | ||
40 | sub get_trace { | |
41 | return $trace; | |
42 | } | |
43 | ||
44 | sub add_trace { | |
45 | my ($text) = @_; | |
46 | ||
47 | if ($debug) { | |
48 | print $text; | |
49 | } else { | |
50 | $trace .= $text; | |
51 | } | |
52 | } | |
53 | ||
49124851 DM |
54 | $SIG{'__WARN__'} = sub { |
55 | my $err = $@; | |
56 | my $t = $_[0]; | |
57 | chomp $t; | |
58 | add_trace("$t\n"); | |
59 | $@ = $err; | |
60 | }; | |
61 | ||
63e8c70e DM |
62 | sub nf_dev_match { |
63 | my ($devre, $dev) = @_; | |
64 | ||
65 | $devre =~ s/\+$/\.\*/; | |
66 | return ($dev =~ m/^${devre}$/) ? 1 : 0; | |
67 | } | |
68 | ||
69 | sub ipset_match { | |
ca1a5a39 DM |
70 | my ($ipset_ruleset, $ipsetname, $ipaddr) = @_; |
71 | ||
72 | my $ipset = $ipset_ruleset->{$ipsetname}; | |
73 | die "no such ipset '$ipsetname'" if !$ipset; | |
63e8c70e DM |
74 | |
75 | my $ip = Net::IP->new($ipaddr); | |
76 | ||
ca1a5a39 DM |
77 | my $first = $ipset->[0]; |
78 | if ($first =~ m/^create\s+\S+\s+list:/) { | |
79 | foreach my $entry (@$ipset) { | |
80 | next if $entry =~ m/^create/; # simply ignore | |
81 | if ($entry =~ m/add \S+ (\S+)$/) { | |
82 | return 1 if ipset_match($ipset_ruleset, $1, $ipaddr); | |
83 | } else { | |
84 | die "implement me"; | |
85 | } | |
86 | } | |
87 | return 0; | |
88 | } elsif ($first =~ m/^create\s+\S+\s+hash:net/) { | |
89 | foreach my $entry (@$ipset) { | |
90 | next if $entry =~ m/^create/; # simply ignore | |
91 | if ($entry =~ m/add \S+ (\S+)$/) { | |
92 | my $test = Net::IP->new($1); | |
93 | if ($test->overlaps($ip)) { | |
94 | add_trace("IPSET $ipsetname match $ipaddr\n"); | |
95 | return 1; | |
96 | } | |
97 | } else { | |
98 | die "implement me"; | |
63e8c70e | 99 | } |
63e8c70e | 100 | } |
ca1a5a39 DM |
101 | return 0; |
102 | } else { | |
103 | die "unknown ipset type '$first' - not implemented\n"; | |
63e8c70e DM |
104 | } |
105 | ||
106 | return 0; | |
107 | } | |
108 | ||
109 | sub rule_match { | |
110 | my ($ipset_ruleset, $chain, $rule, $pkg) = @_; | |
111 | ||
1e9c5070 | 112 | $rule =~ s/^-A $chain +// || die "got strange rule: $rule"; |
63e8c70e DM |
113 | |
114 | while (length($rule)) { | |
115 | ||
116 | if ($rule =~ s/^-m conntrack --ctstate (\S+)\s*//) { | |
117 | my $cstate = $1; | |
118 | ||
119 | return undef if $cstate eq 'INVALID'; # no match | |
120 | return undef if $cstate eq 'RELATED,ESTABLISHED'; # no match | |
75a12a9d | 121 | |
63e8c70e | 122 | next if $cstate =~ m/NEW/; |
75a12a9d | 123 | |
e76a9f53 | 124 | die "cstate test '$cstate' not implemented\n"; |
63e8c70e DM |
125 | } |
126 | ||
127 | if ($rule =~ s/^-m addrtype --src-type (\S+)\s*//) { | |
128 | my $atype = $1; | |
75a12a9d | 129 | die "missing source address type (srctype)\n" |
e76a9f53 | 130 | if !$pkg->{srctype}; |
63e8c70e DM |
131 | return undef if $atype ne $pkg->{srctype}; |
132 | } | |
133 | ||
134 | if ($rule =~ s/^-m addrtype --dst-type (\S+)\s*//) { | |
135 | my $atype = $1; | |
75a12a9d | 136 | die "missing destination address type (dsttype)\n" |
e76a9f53 | 137 | if !$pkg->{dsttype}; |
63e8c70e DM |
138 | return undef if $atype ne $pkg->{dsttype}; |
139 | } | |
140 | ||
29e5ce15 TL |
141 | if ($rule =~ s/^-m icmp(v6)? --icmp-type (\S+)\s*//) { |
142 | my $icmpv6 = !!$1; | |
143 | my $icmptype = $2; | |
144 | die "missing destination address type (dsttype)\n" if !defined($pkg->{dport}); | |
145 | return undef if $icmptype ne $pkg->{dport}; | |
146 | } | |
147 | ||
63e8c70e DM |
148 | if ($rule =~ s/^-i (\S+)\s*//) { |
149 | my $devre = $1; | |
e76a9f53 | 150 | die "missing interface (iface_in)\n" if !$pkg->{iface_in}; |
63e8c70e DM |
151 | return undef if !nf_dev_match($devre, $pkg->{iface_in}); |
152 | next; | |
153 | } | |
154 | ||
155 | if ($rule =~ s/^-o (\S+)\s*//) { | |
156 | my $devre = $1; | |
e76a9f53 | 157 | die "missing interface (iface_out)\n" if !$pkg->{iface_out}; |
63e8c70e DM |
158 | return undef if !nf_dev_match($devre, $pkg->{iface_out}); |
159 | next; | |
160 | } | |
161 | ||
cc8dc02f | 162 | if ($rule =~ s/^-p (tcp|udp|igmp|icmp)\s*//) { |
63e8c70e DM |
163 | die "missing proto" if !$pkg->{proto}; |
164 | return undef if $pkg->{proto} ne $1; # no match | |
165 | next; | |
166 | } | |
167 | ||
168 | if ($rule =~ s/^--dport (\d+):(\d+)\s*//) { | |
169 | die "missing dport" if !$pkg->{dport}; | |
170 | return undef if ($pkg->{dport} < $1) || ($pkg->{dport} > $2); # no match | |
171 | next; | |
172 | } | |
173 | ||
174 | if ($rule =~ s/^--dport (\d+)\s*//) { | |
175 | die "missing dport" if !$pkg->{dport}; | |
176 | return undef if $pkg->{dport} != $1; # no match | |
177 | next; | |
178 | } | |
179 | ||
180 | if ($rule =~ s/^-s (\S+)\s*//) { | |
181 | die "missing source" if !$pkg->{source}; | |
182 | my $ip = Net::IP->new($1); | |
183 | return undef if !$ip->overlaps(Net::IP->new($pkg->{source})); # no match | |
184 | next; | |
185 | } | |
75a12a9d | 186 | |
63e8c70e DM |
187 | if ($rule =~ s/^-d (\S+)\s*//) { |
188 | die "missing destination" if !$pkg->{dest}; | |
189 | my $ip = Net::IP->new($1); | |
190 | return undef if !$ip->overlaps(Net::IP->new($pkg->{dest})); # no match | |
191 | next; | |
192 | } | |
193 | ||
b625713b | 194 | if ($rule =~ s/^-m set (!\s+)?--match-set (\S+) src\s*//) { |
63e8c70e | 195 | die "missing source" if !$pkg->{source}; |
b625713b | 196 | my $neg = $1; |
ca1a5a39 | 197 | my $ipset_name = $2; |
b625713b | 198 | if ($neg) { |
ca1a5a39 | 199 | return undef if ipset_match($ipset_ruleset, $ipset_name, $pkg->{source}); |
b625713b | 200 | } else { |
ca1a5a39 | 201 | return undef if !ipset_match($ipset_ruleset, $ipset_name, $pkg->{source}); |
b625713b | 202 | } |
63e8c70e DM |
203 | next; |
204 | } | |
205 | ||
206 | if ($rule =~ s/^-m set --match-set (\S+) dst\s*//) { | |
207 | die "missing destination" if !$pkg->{dest}; | |
ca1a5a39 DM |
208 | my $ipset_name = $1; |
209 | return undef if !ipset_match($ipset_ruleset, $ipset_name, $pkg->{dest}); | |
63e8c70e DM |
210 | next; |
211 | } | |
212 | ||
213 | if ($rule =~ s/^-m mac ! --mac-source (\S+)\s*//) { | |
214 | die "missing source mac" if !$pkg->{mac_source}; | |
215 | return undef if $pkg->{mac_source} eq $1; # no match | |
216 | next; | |
217 | } | |
218 | ||
219 | if ($rule =~ s/^-m physdev --physdev-is-bridged --physdev-in (\S+)\s*//) { | |
220 | my $devre = $1; | |
221 | return undef if !$pkg->{physdev_in}; | |
222 | return undef if !nf_dev_match($devre, $pkg->{physdev_in}); | |
223 | next; | |
224 | } | |
225 | ||
226 | if ($rule =~ s/^-m physdev --physdev-is-bridged --physdev-out (\S+)\s*//) { | |
227 | my $devre = $1; | |
228 | return undef if !$pkg->{physdev_out}; | |
229 | return undef if !nf_dev_match($devre, $pkg->{physdev_out}); | |
230 | next; | |
231 | } | |
232 | ||
fe3d79b4 WB |
233 | if ($rule =~ s@^-m mark --mark ($NUMBER_RE)(?:/($NUMBER_RE))?\s*@@) { |
234 | my ($value, $mask) = PVE::Firewall::get_mark_values($1, $2); | |
45c8eeb8 | 235 | return undef if ($mark & $mask) != $value; |
63e8c70e DM |
236 | next; |
237 | } | |
238 | ||
239 | # final actions | |
240 | ||
fe3d79b4 WB |
241 | if ($rule =~ s@^-j MARK --set-mark ($NUMBER_RE)(?:/($NUMBER_RE))?\s*$@@) { |
242 | my ($value, $mask) = PVE::Firewall::get_mark_values($1, $2); | |
243 | $mark = ($mark & ~$mask) | $value; | |
63e8c70e DM |
244 | return undef; |
245 | } | |
246 | ||
247 | if ($rule =~ s/^-j (\S+)\s*$//) { | |
248 | return (0, $1); | |
249 | } | |
250 | ||
251 | if ($rule =~ s/^-g (\S+)\s*$//) { | |
252 | return (1, $1); | |
253 | } | |
254 | ||
255 | if ($rule =~ s/^-j NFLOG --nflog-prefix \"[^\"]+\"$//) { | |
75a12a9d | 256 | return undef; |
63e8c70e DM |
257 | } |
258 | ||
259 | last; | |
260 | } | |
261 | ||
262 | die "unable to parse rule: $rule"; | |
263 | } | |
264 | ||
265 | sub ruleset_simulate_chain { | |
266 | my ($ruleset, $ipset_ruleset, $chain, $pkg) = @_; | |
267 | ||
268 | add_trace("ENTER chain $chain\n"); | |
75a12a9d | 269 | |
63e8c70e DM |
270 | my $counter = 0; |
271 | ||
272 | if ($chain eq 'PVEFW-Drop') { | |
273 | add_trace("LEAVE chain $chain\n"); | |
274 | return ('DROP', $counter); | |
275 | } | |
276 | if ($chain eq 'PVEFW-reject') { | |
277 | add_trace("LEAVE chain $chain\n"); | |
278 | return ('REJECT', $counter); | |
279 | } | |
280 | ||
281 | if ($chain eq 'PVEFW-tcpflags') { | |
282 | add_trace("LEAVE chain $chain\n"); | |
283 | return (undef, $counter); | |
284 | } | |
285 | ||
286 | my $rules = $ruleset->{$chain} || | |
287 | die "no such chain '$chain'"; | |
288 | ||
289 | foreach my $rule (@$rules) { | |
290 | $counter++; | |
291 | my ($goto, $action) = rule_match($ipset_ruleset, $chain, $rule, $pkg); | |
292 | if (!defined($action)) { | |
293 | add_trace("SKIP: $rule\n"); | |
294 | next; | |
295 | } | |
296 | add_trace("MATCH: $rule\n"); | |
75a12a9d | 297 | |
63e8c70e DM |
298 | if ($action eq 'ACCEPT' || $action eq 'DROP' || $action eq 'REJECT') { |
299 | add_trace("TERMINATE chain $chain: $action\n"); | |
300 | return ($action, $counter); | |
301 | } elsif ($action eq 'RETURN') { | |
302 | add_trace("RETURN FROM chain $chain\n"); | |
303 | last; | |
304 | } else { | |
305 | if ($goto) { | |
306 | add_trace("LEAVE chain $chain - goto $action\n"); | |
307 | return ruleset_simulate_chain($ruleset, $ipset_ruleset, $action, $pkg) | |
308 | #$chain = $action; | |
309 | #$rules = $ruleset->{$chain} || die "no such chain '$chain'"; | |
310 | } else { | |
311 | my ($act, $ctr) = ruleset_simulate_chain($ruleset, $ipset_ruleset, $action, $pkg); | |
312 | $counter += $ctr; | |
313 | return ($act, $counter) if $act; | |
314 | add_trace("CONTINUE chain $chain\n"); | |
315 | } | |
316 | } | |
317 | } | |
318 | ||
319 | add_trace("LEAVE chain $chain\n"); | |
320 | if ($chain =~ m/^PVEFW-(INPUT|OUTPUT|FORWARD)$/) { | |
321 | return ('ACCEPT', $counter); # default policy | |
322 | } | |
323 | ||
324 | return (undef, $counter); | |
325 | } | |
326 | ||
327 | sub copy_packet { | |
328 | my ($pkg) = @_; | |
329 | ||
330 | my $res = {}; | |
331 | ||
332 | while (my ($k,$v) = each %$pkg) { | |
333 | $res->{$k} = $v; | |
334 | } | |
335 | ||
336 | return $res; | |
337 | } | |
338 | ||
339 | # Try to simulate packet traversal inside kernel. This invokes iptable | |
340 | # checks several times. | |
341 | sub route_packet { | |
342 | my ($ruleset, $ipset_ruleset, $pkg, $from_info, $target, $start_state) = @_; | |
343 | ||
ca1a5a39 DM |
344 | $pkg->{ipversion} = 4; # fixme: allow ipv6 |
345 | ||
63e8c70e DM |
346 | my $route_state = $start_state; |
347 | ||
348 | my $physdev_in; | |
349 | ||
350 | my $ipt_invocation_counter = 0; | |
351 | my $rule_check_counter = 0; | |
352 | ||
353 | while ($route_state ne $target->{iface}) { | |
354 | ||
355 | my $chain; | |
356 | my $next_route_state; | |
357 | my $next_physdev_in; | |
358 | ||
359 | $pkg->{iface_in} = $pkg->{iface_out} = undef; | |
360 | $pkg->{physdev_in} = $pkg->{physdev_out} = undef; | |
361 | ||
362 | if ($route_state eq 'from-bport') { | |
363 | $next_route_state = $from_info->{bridge} || die 'internal error'; | |
364 | $next_physdev_in = $from_info->{iface} || die 'internal error'; | |
365 | } elsif ($route_state eq 'host') { | |
366 | ||
367 | if ($target->{type} eq 'bport') { | |
368 | $pkg->{iface_in} = 'lo'; | |
369 | $pkg->{iface_out} = $target->{bridge} || die 'internal error'; | |
370 | $chain = 'PVEFW-OUTPUT'; | |
371 | $next_route_state = $target->{iface} || die 'internal error'; | |
e038c485 | 372 | } elsif ($target->{type} eq 'vm' || $target->{type} eq 'ct') { |
63e8c70e DM |
373 | $pkg->{iface_in} = 'lo'; |
374 | $pkg->{iface_out} = $target->{bridge} || die 'internal error'; | |
375 | $chain = 'PVEFW-OUTPUT'; | |
376 | $next_route_state = 'fwbr-in'; | |
377 | } else { | |
378 | die "implement me"; | |
379 | } | |
380 | ||
63e8c70e DM |
381 | } elsif ($route_state eq 'fwbr-out') { |
382 | ||
383 | $chain = 'PVEFW-FORWARD'; | |
384 | $next_route_state = $from_info->{bridge} || die 'internal error'; | |
385 | $next_physdev_in = $from_info->{fwpr} || die 'internal error'; | |
386 | $pkg->{iface_in} = $from_info->{fwbr} || die 'internal error'; | |
387 | $pkg->{iface_out} = $from_info->{fwbr} || die 'internal error'; | |
388 | $pkg->{physdev_in} = $from_info->{tapdev} || die 'internal error'; | |
389 | $pkg->{physdev_out} = $from_info->{fwln} || die 'internal error'; | |
75a12a9d | 390 | |
63e8c70e DM |
391 | } elsif ($route_state eq 'fwbr-in') { |
392 | ||
393 | $chain = 'PVEFW-FORWARD'; | |
394 | $next_route_state = $target->{tapdev}; | |
395 | $pkg->{iface_in} = $target->{fwbr} || die 'internal error'; | |
396 | $pkg->{iface_out} = $target->{fwbr} || die 'internal error'; | |
397 | $pkg->{physdev_in} = $target->{fwln} || die 'internal error'; | |
398 | $pkg->{physdev_out} = $target->{tapdev} || die 'internal error'; | |
399 | ||
400 | } elsif ($route_state =~ m/^vmbr\d+$/) { | |
75a12a9d | 401 | |
63e8c70e DM |
402 | die "missing physdev_in - internal error?" if !$physdev_in; |
403 | $pkg->{physdev_in} = $physdev_in; | |
404 | ||
405 | if ($target->{type} eq 'host') { | |
406 | ||
407 | $chain = 'PVEFW-INPUT'; | |
408 | $pkg->{iface_in} = $route_state; | |
409 | $pkg->{iface_out} = 'lo'; | |
410 | $next_route_state = 'host'; | |
411 | ||
412 | } elsif ($target->{type} eq 'bport') { | |
413 | ||
414 | $chain = 'PVEFW-FORWARD'; | |
415 | $pkg->{iface_in} = $route_state; | |
416 | $pkg->{iface_out} = $target->{bridge} || die 'internal error'; | |
417 | # conditionally set physdev_out (same behavior as kernel) | |
418 | if ($route_state eq $target->{bridge}) { | |
419 | $pkg->{physdev_out} = $target->{iface} || die 'internal error'; | |
420 | } | |
421 | $next_route_state = $target->{iface}; | |
422 | ||
e038c485 | 423 | } elsif ($target->{type} eq 'vm' || $target->{type} eq 'ct') { |
63e8c70e DM |
424 | |
425 | $chain = 'PVEFW-FORWARD'; | |
426 | $pkg->{iface_in} = $route_state; | |
427 | $pkg->{iface_out} = $target->{bridge}; | |
428 | # conditionally set physdev_out (same behavior as kernel) | |
429 | if ($route_state eq $target->{bridge}) { | |
430 | $pkg->{physdev_out} = $target->{fwpr} || die 'internal error'; | |
431 | } | |
432 | $next_route_state = 'fwbr-in'; | |
433 | ||
434 | } else { | |
435 | die "implement me"; | |
436 | } | |
437 | ||
438 | } else { | |
439 | die "implement me $route_state"; | |
440 | } | |
441 | ||
442 | die "internal error" if !defined($next_route_state); | |
443 | ||
444 | if ($chain) { | |
445 | add_trace("IPT check at $route_state (chain $chain)\n"); | |
446 | add_trace(Dumper($pkg)); | |
447 | $ipt_invocation_counter++; | |
448 | my ($res, $ctr) = ruleset_simulate_chain($ruleset, $ipset_ruleset, $chain, $pkg); | |
449 | $rule_check_counter += $ctr; | |
450 | return ($res, $ipt_invocation_counter, $rule_check_counter) if $res ne 'ACCEPT'; | |
75a12a9d | 451 | } |
63e8c70e DM |
452 | |
453 | $route_state = $next_route_state; | |
454 | ||
455 | $physdev_in = $next_physdev_in; | |
456 | } | |
457 | ||
458 | return ('ACCEPT', $ipt_invocation_counter, $rule_check_counter); | |
459 | } | |
460 | ||
461 | sub extract_ct_info { | |
e038c485 | 462 | my ($vmdata, $vmid, $netnum) = @_; |
63e8c70e DM |
463 | |
464 | my $info = { type => 'ct', vmid => $vmid }; | |
465 | ||
e038c485 | 466 | my $conf = $vmdata->{lxc}->{$vmid} || die "no such CT '$vmid'"; |
a7c85d56 | 467 | my $net = PVE::LXC::Config->parse_lxc_network($conf->{"net$netnum"}); |
e038c485 DM |
468 | $info->{macaddr} = $net->{hwaddr} || die "unable to get mac address"; |
469 | $info->{bridge} = $net->{bridge} || die "unable to get bridge"; | |
470 | $info->{fwbr} = "fwbr${vmid}i$netnum"; | |
471 | $info->{tapdev} = "veth${vmid}i$netnum"; | |
472 | $info->{fwln} = "fwln${vmid}i$netnum"; | |
473 | $info->{fwpr} = "fwpr${vmid}p$netnum"; | |
474 | $info->{ip_address} = $net->{ip} || die "unable to get ip address"; | |
475 | ||
63e8c70e DM |
476 | return $info; |
477 | } | |
478 | ||
479 | sub extract_vm_info { | |
b625713b | 480 | my ($vmdata, $vmid, $netnum) = @_; |
63e8c70e DM |
481 | |
482 | my $info = { type => 'vm', vmid => $vmid }; | |
483 | ||
484 | my $conf = $vmdata->{qemu}->{$vmid} || die "no such VM '$vmid'"; | |
b625713b | 485 | my $net = PVE::QemuServer::parse_net($conf->{"net$netnum"}); |
63e8c70e DM |
486 | $info->{macaddr} = $net->{macaddr} || die "unable to get mac address"; |
487 | $info->{bridge} = $net->{bridge} || die "unable to get bridge"; | |
b625713b DM |
488 | $info->{fwbr} = "fwbr${vmid}i$netnum"; |
489 | $info->{tapdev} = "tap${vmid}i$netnum"; | |
490 | $info->{fwln} = "fwln${vmid}i$netnum"; | |
491 | $info->{fwpr} = "fwpr${vmid}p$netnum"; | |
63e8c70e DM |
492 | |
493 | return $info; | |
494 | } | |
495 | ||
496 | sub simulate_firewall { | |
497 | my ($ruleset, $ipset_ruleset, $host_ip, $vmdata, $test) = @_; | |
498 | ||
499 | my $from = $test->{from} || die "missing 'from' field"; | |
500 | my $to = $test->{to} || die "missing 'to' field"; | |
501 | my $action = $test->{action} || die "missing 'action'"; | |
75a12a9d | 502 | |
63e8c70e | 503 | my $testid = $test->{id}; |
75a12a9d | 504 | |
63e8c70e DM |
505 | die "from/to needs to be different" if $from eq $to; |
506 | ||
507 | my $pkg = { | |
508 | proto => 'tcp', | |
509 | sport => undef, | |
510 | dport => undef, | |
511 | source => undef, | |
512 | dest => undef, | |
513 | srctype => 'UNICAST', | |
514 | dsttype => 'UNICAST', | |
515 | }; | |
516 | ||
517 | while (my ($k,$v) = each %$test) { | |
518 | next if $k eq 'from'; | |
519 | next if $k eq 'to'; | |
520 | next if $k eq 'action'; | |
521 | next if $k eq 'id'; | |
522 | die "unknown attribute '$k'\n" if !exists($pkg->{$k}); | |
523 | $pkg->{$k} = $v; | |
524 | } | |
525 | ||
526 | my $from_info = {}; | |
527 | ||
528 | my $start_state; | |
529 | ||
530 | if ($from eq 'host') { | |
531 | $from_info->{type} = 'host'; | |
532 | $start_state = 'host'; | |
533 | $pkg->{source} = $host_ip if !defined($pkg->{source}); | |
534 | } elsif ($from =~ m|^(vmbr\d+)/(\S+)$|) { | |
535 | $from_info->{type} = 'bport'; | |
536 | $from_info->{bridge} = $1; | |
537 | $from_info->{iface} = $2; | |
538 | $start_state = 'from-bport'; | |
539 | } elsif ($from eq 'outside') { | |
540 | $from_info->{type} = 'bport'; | |
541 | $from_info->{bridge} = 'vmbr0'; | |
542 | $from_info->{iface} = 'eth0'; | |
543 | $start_state = 'from-bport'; | |
544 | } elsif ($from eq 'nfvm') { | |
545 | $from_info->{type} = 'bport'; | |
546 | $from_info->{bridge} = 'vmbr0'; | |
547 | $from_info->{iface} = 'tapXYZ'; | |
548 | $start_state = 'from-bport'; | |
549 | } elsif ($from =~ m/^ct(\d+)$/) { | |
09e11ad4 | 550 | return 'SKIPPED' if !$have_lxc; |
63e8c70e | 551 | my $vmid = $1; |
e038c485 | 552 | $from_info = extract_ct_info($vmdata, $vmid, 0); |
75a12a9d | 553 | $start_state = 'fwbr-out'; |
e038c485 | 554 | $pkg->{mac_source} = $from_info->{macaddr}; |
b625713b | 555 | } elsif ($from =~ m/^vm(\d+)(i(\d))?$/) { |
09e11ad4 | 556 | return 'SKIPPED' if !$have_qemu_server; |
63e8c70e | 557 | my $vmid = $1; |
b625713b DM |
558 | my $netnum = $3 || 0; |
559 | $from_info = extract_vm_info($vmdata, $vmid, $netnum); | |
75a12a9d | 560 | $start_state = 'fwbr-out'; |
63e8c70e DM |
561 | $pkg->{mac_source} = $from_info->{macaddr}; |
562 | } else { | |
563 | die "unable to parse \"from => '$from'\"\n"; | |
564 | } | |
565 | ||
566 | my $target; | |
567 | ||
568 | if ($to eq 'host') { | |
569 | $target->{type} = 'host'; | |
570 | $target->{iface} = 'host'; | |
571 | $pkg->{dest} = $host_ip if !defined($pkg->{dest}); | |
572 | } elsif ($to =~ m|^(vmbr\d+)/(\S+)$|) { | |
573 | $target->{type} = 'bport'; | |
574 | $target->{bridge} = $1; | |
575 | $target->{iface} = $2; | |
576 | } elsif ($to eq 'outside') { | |
577 | $target->{type} = 'bport'; | |
578 | $target->{bridge} = 'vmbr0'; | |
579 | $target->{iface} = 'eth0'; | |
580 | } elsif ($to eq 'nfvm') { | |
581 | $target->{type} = 'bport'; | |
582 | $target->{bridge} = 'vmbr0'; | |
583 | $target->{iface} = 'tapXYZ'; | |
584 | } elsif ($to =~ m/^ct(\d+)$/) { | |
09e11ad4 | 585 | return 'SKIPPED' if !$have_lxc; |
63e8c70e | 586 | my $vmid = $1; |
e038c485 DM |
587 | $target = extract_ct_info($vmdata, $vmid, 0); |
588 | $target->{iface} = $target->{tapdev}; | |
63e8c70e | 589 | } elsif ($to =~ m/^vm(\d+)$/) { |
09e11ad4 | 590 | return 'SKIPPED' if !$have_qemu_server; |
63e8c70e | 591 | my $vmid = $1; |
b625713b | 592 | $target = extract_vm_info($vmdata, $vmid, 0); |
63e8c70e DM |
593 | $target->{iface} = $target->{tapdev}; |
594 | } else { | |
595 | die "unable to parse \"to => '$to'\"\n"; | |
596 | } | |
597 | ||
598 | $pkg->{source} = '100.100.1.2' if !defined($pkg->{source}); | |
599 | $pkg->{dest} = '100.200.3.4' if !defined($pkg->{dest}); | |
600 | ||
75a12a9d | 601 | my ($res, $ic, $rc) = route_packet($ruleset, $ipset_ruleset, $pkg, |
63e8c70e DM |
602 | $from_info, $target, $start_state); |
603 | ||
604 | add_trace("IPT statistics: invocation = $ic, checks = $rc\n"); | |
75a12a9d | 605 | |
814de832 DM |
606 | return $res if $action eq 'QUERY'; |
607 | ||
63e8c70e DM |
608 | die "test failed ($res != $action)\n" if $action ne $res; |
609 | ||
75a12a9d | 610 | return undef; |
63e8c70e DM |
611 | } |
612 | ||
613 | 1; | |
614 |