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Commit | Line | Data |
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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; | |
9 | ||
10 | my $mark; | |
11 | my $trace; | |
12 | my $debug = 0; | |
13 | ||
14 | sub debug { | |
15 | my $new_value = shift; | |
16 | ||
17 | $debug = $new_value if defined($new_value); | |
18 | ||
19 | return $debug; | |
20 | } | |
21 | ||
22 | sub reset_trace { | |
23 | $trace = ''; | |
24 | } | |
25 | ||
26 | sub get_trace { | |
27 | return $trace; | |
28 | } | |
29 | ||
30 | sub add_trace { | |
31 | my ($text) = @_; | |
32 | ||
33 | if ($debug) { | |
34 | print $text; | |
35 | } else { | |
36 | $trace .= $text; | |
37 | } | |
38 | } | |
39 | ||
40 | sub nf_dev_match { | |
41 | my ($devre, $dev) = @_; | |
42 | ||
43 | $devre =~ s/\+$/\.\*/; | |
44 | return ($dev =~ m/^${devre}$/) ? 1 : 0; | |
45 | } | |
46 | ||
47 | sub ipset_match { | |
48 | my ($ipsetname, $ipset, $ipaddr) = @_; | |
49 | ||
50 | my $ip = Net::IP->new($ipaddr); | |
51 | ||
52 | foreach my $entry (@$ipset) { | |
53 | next if $entry =~ m/^create/; # simply ignore | |
54 | if ($entry =~ m/add \S+ (\S+)$/) { | |
55 | my $test = Net::IP->new($1); | |
56 | if ($test->overlaps($ip)) { | |
57 | add_trace("IPSET $ipsetname match $ipaddr\n"); | |
58 | return 1; | |
59 | } | |
60 | } else { | |
61 | die "implement me"; | |
62 | } | |
63 | } | |
64 | ||
65 | return 0; | |
66 | } | |
67 | ||
68 | sub rule_match { | |
69 | my ($ipset_ruleset, $chain, $rule, $pkg) = @_; | |
70 | ||
71 | $rule =~ s/^-A $chain // || die "got strange rule: $rule"; | |
72 | ||
73 | while (length($rule)) { | |
74 | ||
75 | if ($rule =~ s/^-m conntrack --ctstate (\S+)\s*//) { | |
76 | my $cstate = $1; | |
77 | ||
78 | return undef if $cstate eq 'INVALID'; # no match | |
79 | return undef if $cstate eq 'RELATED,ESTABLISHED'; # no match | |
80 | ||
81 | next if $cstate =~ m/NEW/; | |
82 | ||
83 | die "cstate test '$cstate' not implemented\n"; | |
84 | } | |
85 | ||
86 | if ($rule =~ s/^-m addrtype --src-type (\S+)\s*//) { | |
87 | my $atype = $1; | |
88 | die "missing source address type (srctype)\n" | |
89 | if !$pkg->{srctype}; | |
90 | return undef if $atype ne $pkg->{srctype}; | |
91 | } | |
92 | ||
93 | if ($rule =~ s/^-m addrtype --dst-type (\S+)\s*//) { | |
94 | my $atype = $1; | |
95 | die "missing destination address type (dsttype)\n" | |
96 | if !$pkg->{dsttype}; | |
97 | return undef if $atype ne $pkg->{dsttype}; | |
98 | } | |
99 | ||
100 | if ($rule =~ s/^-i (\S+)\s*//) { | |
101 | my $devre = $1; | |
102 | die "missing interface (iface_in)\n" if !$pkg->{iface_in}; | |
103 | return undef if !nf_dev_match($devre, $pkg->{iface_in}); | |
104 | next; | |
105 | } | |
106 | ||
107 | if ($rule =~ s/^-o (\S+)\s*//) { | |
108 | my $devre = $1; | |
109 | die "missing interface (iface_out)\n" if !$pkg->{iface_out}; | |
110 | return undef if !nf_dev_match($devre, $pkg->{iface_out}); | |
111 | next; | |
112 | } | |
113 | ||
114 | if ($rule =~ s/^-p (tcp|udp|igmp|icmp)\s*//) { | |
115 | die "missing proto" if !$pkg->{proto}; | |
116 | return undef if $pkg->{proto} ne $1; # no match | |
117 | next; | |
118 | } | |
119 | ||
120 | if ($rule =~ s/^--dport (\d+):(\d+)\s*//) { | |
121 | die "missing dport" if !$pkg->{dport}; | |
122 | return undef if ($pkg->{dport} < $1) || ($pkg->{dport} > $2); # no match | |
123 | next; | |
124 | } | |
125 | ||
126 | if ($rule =~ s/^--dport (\d+)\s*//) { | |
127 | die "missing dport" if !$pkg->{dport}; | |
128 | return undef if $pkg->{dport} != $1; # no match | |
129 | next; | |
130 | } | |
131 | ||
132 | if ($rule =~ s/^-s (\S+)\s*//) { | |
133 | die "missing source" if !$pkg->{source}; | |
134 | my $ip = Net::IP->new($1); | |
135 | return undef if !$ip->overlaps(Net::IP->new($pkg->{source})); # no match | |
136 | next; | |
137 | } | |
138 | ||
139 | if ($rule =~ s/^-d (\S+)\s*//) { | |
140 | die "missing destination" if !$pkg->{dest}; | |
141 | my $ip = Net::IP->new($1); | |
142 | return undef if !$ip->overlaps(Net::IP->new($pkg->{dest})); # no match | |
143 | next; | |
144 | } | |
145 | ||
146 | if ($rule =~ s/^-m set --match-set (\S+) src\s*//) { | |
147 | die "missing source" if !$pkg->{source}; | |
148 | my $ipset = $ipset_ruleset->{$1}; | |
149 | die "no such ip set '$1'" if !$ipset; | |
150 | return undef if !ipset_match($1, $ipset, $pkg->{source}); | |
151 | next; | |
152 | } | |
153 | ||
154 | if ($rule =~ s/^-m set --match-set (\S+) dst\s*//) { | |
155 | die "missing destination" if !$pkg->{dest}; | |
156 | my $ipset = $ipset_ruleset->{$1}; | |
157 | die "no such ip set '$1'" if !$ipset; | |
158 | return undef if !ipset_match($1, $ipset, $pkg->{dest}); | |
159 | next; | |
160 | } | |
161 | ||
162 | if ($rule =~ s/^-m mac ! --mac-source (\S+)\s*//) { | |
163 | die "missing source mac" if !$pkg->{mac_source}; | |
164 | return undef if $pkg->{mac_source} eq $1; # no match | |
165 | next; | |
166 | } | |
167 | ||
168 | if ($rule =~ s/^-m physdev --physdev-is-bridged --physdev-in (\S+)\s*//) { | |
169 | my $devre = $1; | |
170 | return undef if !$pkg->{physdev_in}; | |
171 | return undef if !nf_dev_match($devre, $pkg->{physdev_in}); | |
172 | next; | |
173 | } | |
174 | ||
175 | if ($rule =~ s/^-m physdev --physdev-is-bridged --physdev-out (\S+)\s*//) { | |
176 | my $devre = $1; | |
177 | return undef if !$pkg->{physdev_out}; | |
178 | return undef if !nf_dev_match($devre, $pkg->{physdev_out}); | |
179 | next; | |
180 | } | |
181 | ||
182 | if ($rule =~ s/^-m mark --mark (\d+)\s*//) { | |
183 | return undef if !defined($mark) || $mark != $1; | |
184 | next; | |
185 | } | |
186 | ||
187 | # final actions | |
188 | ||
189 | if ($rule =~ s/^-j MARK --set-mark (\d+)\s*$//) { | |
190 | $mark = $1; | |
191 | return undef; | |
192 | } | |
193 | ||
194 | if ($rule =~ s/^-j (\S+)\s*$//) { | |
195 | return (0, $1); | |
196 | } | |
197 | ||
198 | if ($rule =~ s/^-g (\S+)\s*$//) { | |
199 | return (1, $1); | |
200 | } | |
201 | ||
202 | if ($rule =~ s/^-j NFLOG --nflog-prefix \"[^\"]+\"$//) { | |
203 | return undef; | |
204 | } | |
205 | ||
206 | last; | |
207 | } | |
208 | ||
209 | die "unable to parse rule: $rule"; | |
210 | } | |
211 | ||
212 | sub ruleset_simulate_chain { | |
213 | my ($ruleset, $ipset_ruleset, $chain, $pkg) = @_; | |
214 | ||
215 | add_trace("ENTER chain $chain\n"); | |
216 | ||
217 | my $counter = 0; | |
218 | ||
219 | if ($chain eq 'PVEFW-Drop') { | |
220 | add_trace("LEAVE chain $chain\n"); | |
221 | return ('DROP', $counter); | |
222 | } | |
223 | if ($chain eq 'PVEFW-reject') { | |
224 | add_trace("LEAVE chain $chain\n"); | |
225 | return ('REJECT', $counter); | |
226 | } | |
227 | ||
228 | if ($chain eq 'PVEFW-tcpflags') { | |
229 | add_trace("LEAVE chain $chain\n"); | |
230 | return (undef, $counter); | |
231 | } | |
232 | ||
233 | my $rules = $ruleset->{$chain} || | |
234 | die "no such chain '$chain'"; | |
235 | ||
236 | foreach my $rule (@$rules) { | |
237 | $counter++; | |
238 | my ($goto, $action) = rule_match($ipset_ruleset, $chain, $rule, $pkg); | |
239 | if (!defined($action)) { | |
240 | add_trace("SKIP: $rule\n"); | |
241 | next; | |
242 | } | |
243 | add_trace("MATCH: $rule\n"); | |
244 | ||
245 | if ($action eq 'ACCEPT' || $action eq 'DROP' || $action eq 'REJECT') { | |
246 | add_trace("TERMINATE chain $chain: $action\n"); | |
247 | return ($action, $counter); | |
248 | } elsif ($action eq 'RETURN') { | |
249 | add_trace("RETURN FROM chain $chain\n"); | |
250 | last; | |
251 | } else { | |
252 | if ($goto) { | |
253 | add_trace("LEAVE chain $chain - goto $action\n"); | |
254 | return ruleset_simulate_chain($ruleset, $ipset_ruleset, $action, $pkg) | |
255 | #$chain = $action; | |
256 | #$rules = $ruleset->{$chain} || die "no such chain '$chain'"; | |
257 | } else { | |
258 | my ($act, $ctr) = ruleset_simulate_chain($ruleset, $ipset_ruleset, $action, $pkg); | |
259 | $counter += $ctr; | |
260 | return ($act, $counter) if $act; | |
261 | add_trace("CONTINUE chain $chain\n"); | |
262 | } | |
263 | } | |
264 | } | |
265 | ||
266 | add_trace("LEAVE chain $chain\n"); | |
267 | if ($chain =~ m/^PVEFW-(INPUT|OUTPUT|FORWARD)$/) { | |
268 | return ('ACCEPT', $counter); # default policy | |
269 | } | |
270 | ||
271 | return (undef, $counter); | |
272 | } | |
273 | ||
274 | sub copy_packet { | |
275 | my ($pkg) = @_; | |
276 | ||
277 | my $res = {}; | |
278 | ||
279 | while (my ($k,$v) = each %$pkg) { | |
280 | $res->{$k} = $v; | |
281 | } | |
282 | ||
283 | return $res; | |
284 | } | |
285 | ||
286 | # Try to simulate packet traversal inside kernel. This invokes iptable | |
287 | # checks several times. | |
288 | sub route_packet { | |
289 | my ($ruleset, $ipset_ruleset, $pkg, $from_info, $target, $start_state) = @_; | |
290 | ||
291 | my $route_state = $start_state; | |
292 | ||
293 | my $physdev_in; | |
294 | ||
295 | my $ipt_invocation_counter = 0; | |
296 | my $rule_check_counter = 0; | |
297 | ||
298 | while ($route_state ne $target->{iface}) { | |
299 | ||
300 | my $chain; | |
301 | my $next_route_state; | |
302 | my $next_physdev_in; | |
303 | ||
304 | $pkg->{iface_in} = $pkg->{iface_out} = undef; | |
305 | $pkg->{physdev_in} = $pkg->{physdev_out} = undef; | |
306 | ||
307 | if ($route_state eq 'from-bport') { | |
308 | $next_route_state = $from_info->{bridge} || die 'internal error'; | |
309 | $next_physdev_in = $from_info->{iface} || die 'internal error'; | |
310 | } elsif ($route_state eq 'host') { | |
311 | ||
312 | if ($target->{type} eq 'bport') { | |
313 | $pkg->{iface_in} = 'lo'; | |
314 | $pkg->{iface_out} = $target->{bridge} || die 'internal error'; | |
315 | $chain = 'PVEFW-OUTPUT'; | |
316 | $next_route_state = $target->{iface} || die 'internal error'; | |
317 | } elsif ($target->{type} eq 'ct') { | |
318 | $pkg->{iface_in} = 'lo'; | |
319 | $pkg->{iface_out} = 'venet0'; | |
320 | $chain = 'PVEFW-OUTPUT'; | |
321 | $next_route_state = 'venet-in'; | |
322 | } elsif ($target->{type} eq 'vm') { | |
323 | $pkg->{iface_in} = 'lo'; | |
324 | $pkg->{iface_out} = $target->{bridge} || die 'internal error'; | |
325 | $chain = 'PVEFW-OUTPUT'; | |
326 | $next_route_state = 'fwbr-in'; | |
327 | } else { | |
328 | die "implement me"; | |
329 | } | |
330 | ||
331 | } elsif ($route_state eq 'venet-out') { | |
332 | ||
333 | if ($target->{type} eq 'host') { | |
334 | ||
335 | $chain = 'PVEFW-INPUT'; | |
336 | $pkg->{iface_in} = 'venet0'; | |
337 | $pkg->{iface_out} = 'lo'; | |
338 | $next_route_state = 'host'; | |
339 | ||
340 | } elsif ($target->{type} eq 'bport') { | |
341 | ||
342 | $chain = 'PVEFW-FORWARD'; | |
343 | $pkg->{iface_in} = 'venet0'; | |
344 | $pkg->{iface_out} = $target->{bridge} || die 'internal error'; | |
345 | $next_route_state = $target->{iface} || die 'internal error'; | |
346 | ||
347 | } elsif ($target->{type} eq 'vm') { | |
348 | ||
349 | $chain = 'PVEFW-FORWARD'; | |
350 | $pkg->{iface_in} = 'venet0'; | |
351 | $pkg->{iface_out} = $target->{bridge} || die 'internal error'; | |
352 | $next_route_state = 'fwbr-in'; | |
353 | ||
354 | } elsif ($target->{type} eq 'ct') { | |
355 | ||
356 | $chain = 'PVEFW-FORWARD'; | |
357 | $pkg->{iface_in} = 'venet0'; | |
358 | $pkg->{iface_out} = 'venet0'; | |
359 | $next_route_state = 'venet-in'; | |
360 | ||
361 | } else { | |
362 | die "implement me"; | |
363 | } | |
364 | ||
365 | } elsif ($route_state eq 'fwbr-out') { | |
366 | ||
367 | $chain = 'PVEFW-FORWARD'; | |
368 | $next_route_state = $from_info->{bridge} || die 'internal error'; | |
369 | $next_physdev_in = $from_info->{fwpr} || die 'internal error'; | |
370 | $pkg->{iface_in} = $from_info->{fwbr} || die 'internal error'; | |
371 | $pkg->{iface_out} = $from_info->{fwbr} || die 'internal error'; | |
372 | $pkg->{physdev_in} = $from_info->{tapdev} || die 'internal error'; | |
373 | $pkg->{physdev_out} = $from_info->{fwln} || die 'internal error'; | |
374 | ||
375 | } elsif ($route_state eq 'fwbr-in') { | |
376 | ||
377 | $chain = 'PVEFW-FORWARD'; | |
378 | $next_route_state = $target->{tapdev}; | |
379 | $pkg->{iface_in} = $target->{fwbr} || die 'internal error'; | |
380 | $pkg->{iface_out} = $target->{fwbr} || die 'internal error'; | |
381 | $pkg->{physdev_in} = $target->{fwln} || die 'internal error'; | |
382 | $pkg->{physdev_out} = $target->{tapdev} || die 'internal error'; | |
383 | ||
384 | } elsif ($route_state =~ m/^vmbr\d+$/) { | |
385 | ||
386 | die "missing physdev_in - internal error?" if !$physdev_in; | |
387 | $pkg->{physdev_in} = $physdev_in; | |
388 | ||
389 | if ($target->{type} eq 'host') { | |
390 | ||
391 | $chain = 'PVEFW-INPUT'; | |
392 | $pkg->{iface_in} = $route_state; | |
393 | $pkg->{iface_out} = 'lo'; | |
394 | $next_route_state = 'host'; | |
395 | ||
396 | } elsif ($target->{type} eq 'bport') { | |
397 | ||
398 | $chain = 'PVEFW-FORWARD'; | |
399 | $pkg->{iface_in} = $route_state; | |
400 | $pkg->{iface_out} = $target->{bridge} || die 'internal error'; | |
401 | # conditionally set physdev_out (same behavior as kernel) | |
402 | if ($route_state eq $target->{bridge}) { | |
403 | $pkg->{physdev_out} = $target->{iface} || die 'internal error'; | |
404 | } | |
405 | $next_route_state = $target->{iface}; | |
406 | ||
407 | } elsif ($target->{type} eq 'ct') { | |
408 | ||
409 | $chain = 'PVEFW-FORWARD'; | |
410 | $pkg->{iface_in} = $route_state; | |
411 | $pkg->{iface_out} = 'venet0'; | |
412 | $next_route_state = 'venet-in'; | |
413 | ||
414 | } elsif ($target->{type} eq 'vm') { | |
415 | ||
416 | $chain = 'PVEFW-FORWARD'; | |
417 | $pkg->{iface_in} = $route_state; | |
418 | $pkg->{iface_out} = $target->{bridge}; | |
419 | # conditionally set physdev_out (same behavior as kernel) | |
420 | if ($route_state eq $target->{bridge}) { | |
421 | $pkg->{physdev_out} = $target->{fwpr} || die 'internal error'; | |
422 | } | |
423 | $next_route_state = 'fwbr-in'; | |
424 | ||
425 | } else { | |
426 | die "implement me"; | |
427 | } | |
428 | ||
429 | } else { | |
430 | die "implement me $route_state"; | |
431 | } | |
432 | ||
433 | die "internal error" if !defined($next_route_state); | |
434 | ||
435 | if ($chain) { | |
436 | add_trace("IPT check at $route_state (chain $chain)\n"); | |
437 | add_trace(Dumper($pkg)); | |
438 | $ipt_invocation_counter++; | |
439 | my ($res, $ctr) = ruleset_simulate_chain($ruleset, $ipset_ruleset, $chain, $pkg); | |
440 | $rule_check_counter += $ctr; | |
441 | return ($res, $ipt_invocation_counter, $rule_check_counter) if $res ne 'ACCEPT'; | |
442 | } | |
443 | ||
444 | $route_state = $next_route_state; | |
445 | ||
446 | $physdev_in = $next_physdev_in; | |
447 | } | |
448 | ||
449 | return ('ACCEPT', $ipt_invocation_counter, $rule_check_counter); | |
450 | } | |
451 | ||
452 | sub extract_ct_info { | |
453 | my ($vmdata, $vmid) = @_; | |
454 | ||
455 | my $info = { type => 'ct', vmid => $vmid }; | |
456 | ||
457 | my $conf = $vmdata->{openvz}->{$vmid} || die "no such CT '$vmid'"; | |
458 | if ($conf->{ip_address}) { | |
459 | $info->{ip_address} = $conf->{ip_address}->{value}; | |
460 | } else { | |
461 | die "implement me"; | |
462 | } | |
463 | return $info; | |
464 | } | |
465 | ||
466 | sub extract_vm_info { | |
467 | my ($vmdata, $vmid) = @_; | |
468 | ||
469 | my $info = { type => 'vm', vmid => $vmid }; | |
470 | ||
471 | my $conf = $vmdata->{qemu}->{$vmid} || die "no such VM '$vmid'"; | |
472 | my $net = PVE::QemuServer::parse_net($conf->{net0}); | |
473 | $info->{macaddr} = $net->{macaddr} || die "unable to get mac address"; | |
474 | $info->{bridge} = $net->{bridge} || die "unable to get bridge"; | |
475 | $info->{fwbr} = "fwbr${vmid}i0"; | |
476 | $info->{tapdev} = "tap${vmid}i0"; | |
477 | $info->{fwln} = "fwln${vmid}i0"; | |
478 | $info->{fwpr} = "fwpr${vmid}p0"; | |
479 | ||
480 | return $info; | |
481 | } | |
482 | ||
483 | sub simulate_firewall { | |
484 | my ($ruleset, $ipset_ruleset, $host_ip, $vmdata, $test) = @_; | |
485 | ||
486 | my $from = $test->{from} || die "missing 'from' field"; | |
487 | my $to = $test->{to} || die "missing 'to' field"; | |
488 | my $action = $test->{action} || die "missing 'action'"; | |
489 | ||
490 | my $testid = $test->{id}; | |
491 | ||
492 | die "from/to needs to be different" if $from eq $to; | |
493 | ||
494 | my $pkg = { | |
495 | proto => 'tcp', | |
496 | sport => undef, | |
497 | dport => undef, | |
498 | source => undef, | |
499 | dest => undef, | |
500 | srctype => 'UNICAST', | |
501 | dsttype => 'UNICAST', | |
502 | }; | |
503 | ||
504 | while (my ($k,$v) = each %$test) { | |
505 | next if $k eq 'from'; | |
506 | next if $k eq 'to'; | |
507 | next if $k eq 'action'; | |
508 | next if $k eq 'id'; | |
509 | die "unknown attribute '$k'\n" if !exists($pkg->{$k}); | |
510 | $pkg->{$k} = $v; | |
511 | } | |
512 | ||
513 | my $from_info = {}; | |
514 | ||
515 | my $start_state; | |
516 | ||
517 | if ($from eq 'host') { | |
518 | $from_info->{type} = 'host'; | |
519 | $start_state = 'host'; | |
520 | $pkg->{source} = $host_ip if !defined($pkg->{source}); | |
521 | } elsif ($from =~ m|^(vmbr\d+)/(\S+)$|) { | |
522 | $from_info->{type} = 'bport'; | |
523 | $from_info->{bridge} = $1; | |
524 | $from_info->{iface} = $2; | |
525 | $start_state = 'from-bport'; | |
526 | } elsif ($from eq 'outside') { | |
527 | $from_info->{type} = 'bport'; | |
528 | $from_info->{bridge} = 'vmbr0'; | |
529 | $from_info->{iface} = 'eth0'; | |
530 | $start_state = 'from-bport'; | |
531 | } elsif ($from eq 'nfvm') { | |
532 | $from_info->{type} = 'bport'; | |
533 | $from_info->{bridge} = 'vmbr0'; | |
534 | $from_info->{iface} = 'tapXYZ'; | |
535 | $start_state = 'from-bport'; | |
536 | } elsif ($from =~ m/^ct(\d+)$/) { | |
537 | my $vmid = $1; | |
538 | $from_info = extract_ct_info($vmdata, $vmid); | |
539 | if ($from_info->{ip_address}) { | |
540 | $pkg->{source} = $from_info->{ip_address} if !defined($pkg->{source}); | |
541 | $start_state = 'venet-out'; | |
542 | } else { | |
543 | die "implement me"; | |
544 | } | |
545 | } elsif ($from =~ m/^vm(\d+)$/) { | |
546 | my $vmid = $1; | |
547 | $from_info = extract_vm_info($vmdata, $vmid); | |
548 | $start_state = 'fwbr-out'; | |
549 | $pkg->{mac_source} = $from_info->{macaddr}; | |
550 | } else { | |
551 | die "unable to parse \"from => '$from'\"\n"; | |
552 | } | |
553 | ||
554 | my $target; | |
555 | ||
556 | if ($to eq 'host') { | |
557 | $target->{type} = 'host'; | |
558 | $target->{iface} = 'host'; | |
559 | $pkg->{dest} = $host_ip if !defined($pkg->{dest}); | |
560 | } elsif ($to =~ m|^(vmbr\d+)/(\S+)$|) { | |
561 | $target->{type} = 'bport'; | |
562 | $target->{bridge} = $1; | |
563 | $target->{iface} = $2; | |
564 | } elsif ($to eq 'outside') { | |
565 | $target->{type} = 'bport'; | |
566 | $target->{bridge} = 'vmbr0'; | |
567 | $target->{iface} = 'eth0'; | |
568 | } elsif ($to eq 'nfvm') { | |
569 | $target->{type} = 'bport'; | |
570 | $target->{bridge} = 'vmbr0'; | |
571 | $target->{iface} = 'tapXYZ'; | |
572 | } elsif ($to =~ m/^ct(\d+)$/) { | |
573 | my $vmid = $1; | |
574 | $target = extract_ct_info($vmdata, $vmid); | |
575 | $target->{iface} = 'venet-in'; | |
576 | ||
577 | if ($target->{ip_address}) { | |
578 | $pkg->{dest} = $target->{ip_address}; | |
579 | } else { | |
580 | die "implement me"; | |
581 | } | |
582 | } elsif ($to =~ m/^vm(\d+)$/) { | |
583 | my $vmid = $1; | |
584 | $target = extract_vm_info($vmdata, $vmid); | |
585 | $target->{iface} = $target->{tapdev}; | |
586 | } else { | |
587 | die "unable to parse \"to => '$to'\"\n"; | |
588 | } | |
589 | ||
590 | $pkg->{source} = '100.100.1.2' if !defined($pkg->{source}); | |
591 | $pkg->{dest} = '100.200.3.4' if !defined($pkg->{dest}); | |
592 | ||
593 | my ($res, $ic, $rc) = route_packet($ruleset, $ipset_ruleset, $pkg, | |
594 | $from_info, $target, $start_state); | |
595 | ||
596 | add_trace("IPT statistics: invocation = $ic, checks = $rc\n"); | |
597 | ||
598 | return $res if $action eq 'QUERY'; | |
599 | ||
600 | die "test failed ($res != $action)\n" if $action ne $res; | |
601 | ||
602 | return undef; | |
603 | } | |
604 | ||
605 | 1; | |
606 |