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Commit | Line | Data |
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b9436cda DM |
1 | package PVE::Network; |
2 | ||
3 | use strict; | |
c36f332e | 4 | use warnings; |
f27d5e6b | 5 | |
b9436cda | 6 | use PVE::INotify; |
f27d5e6b TL |
7 | use PVE::ProcFSTools; |
8 | use PVE::Tools qw(run_command lock_file); | |
9 | ||
b9436cda | 10 | use File::Basename; |
b6bff92e | 11 | use IO::Socket::IP; |
bf52d27b | 12 | use Net::IP; |
f27d5e6b TL |
13 | use POSIX qw(ECONNREFUSED); |
14 | use Socket qw(NI_NUMERICHOST NI_NUMERICSERV); | |
bf52d27b | 15 | |
35f2791f TL |
16 | my $have_sdn; |
17 | eval { | |
18 | require PVE::Network::SDN::Zones; | |
19 | $have_sdn = 1; | |
20 | }; | |
21 | ||
b9436cda DM |
22 | # host network related utility functions |
23 | ||
3dabe28a FG |
24 | our $PHYSICAL_NIC_RE = qr/(?:eth\d+|en[^:.]+|ib\d+)/; |
25 | ||
61aa94e4 WB |
26 | our $ipv4_reverse_mask = [ |
27 | '0.0.0.0', | |
28 | '128.0.0.0', | |
29 | '192.0.0.0', | |
30 | '224.0.0.0', | |
31 | '240.0.0.0', | |
32 | '248.0.0.0', | |
33 | '252.0.0.0', | |
34 | '254.0.0.0', | |
35 | '255.0.0.0', | |
36 | '255.128.0.0', | |
37 | '255.192.0.0', | |
38 | '255.224.0.0', | |
39 | '255.240.0.0', | |
40 | '255.248.0.0', | |
41 | '255.252.0.0', | |
42 | '255.254.0.0', | |
43 | '255.255.0.0', | |
44 | '255.255.128.0', | |
45 | '255.255.192.0', | |
46 | '255.255.224.0', | |
47 | '255.255.240.0', | |
48 | '255.255.248.0', | |
49 | '255.255.252.0', | |
50 | '255.255.254.0', | |
51 | '255.255.255.0', | |
52 | '255.255.255.128', | |
53 | '255.255.255.192', | |
54 | '255.255.255.224', | |
55 | '255.255.255.240', | |
56 | '255.255.255.248', | |
57 | '255.255.255.252', | |
58 | '255.255.255.254', | |
59 | '255.255.255.255', | |
60 | ]; | |
61 | ||
62 | our $ipv4_mask_hash_localnet = { | |
19e609fd WB |
63 | '255.0.0.0' => 8, |
64 | '255.128.0.0' => 9, | |
65 | '255.192.0.0' => 10, | |
66 | '255.224.0.0' => 11, | |
67 | '255.240.0.0' => 12, | |
68 | '255.248.0.0' => 13, | |
69 | '255.252.0.0' => 14, | |
70 | '255.254.0.0' => 15, | |
61aa94e4 WB |
71 | '255.255.0.0' => 16, |
72 | '255.255.128.0' => 17, | |
73 | '255.255.192.0' => 18, | |
74 | '255.255.224.0' => 19, | |
75 | '255.255.240.0' => 20, | |
76 | '255.255.248.0' => 21, | |
77 | '255.255.252.0' => 22, | |
78 | '255.255.254.0' => 23, | |
79 | '255.255.255.0' => 24, | |
80 | '255.255.255.128' => 25, | |
81 | '255.255.255.192' => 26, | |
82 | '255.255.255.224' => 27, | |
83 | '255.255.255.240' => 28, | |
84 | '255.255.255.248' => 29, | |
85 | '255.255.255.252' => 30, | |
e43faad9 WB |
86 | '255.255.255.254' => 31, |
87 | '255.255.255.255' => 32, | |
61aa94e4 WB |
88 | }; |
89 | ||
74d1b045 DM |
90 | sub setup_tc_rate_limit { |
91 | my ($iface, $rate, $burst, $debug) = @_; | |
92 | ||
2d6b3a90 FG |
93 | # these are allowed / expected to fail, e.g. when there is no previous rate limit to remove |
94 | eval { run_command("/sbin/tc class del dev $iface parent 1: classid 1:1 >/dev/null 2>&1"); }; | |
95 | eval { run_command("/sbin/tc filter del dev $iface parent ffff: protocol all pref 50 u32 >/dev/null 2>&1"); }; | |
96 | eval { run_command("/sbin/tc qdisc del dev $iface ingress >/dev/null 2>&1"); }; | |
97 | eval { run_command("/sbin/tc qdisc del dev $iface root >/dev/null 2>&1"); }; | |
74d1b045 | 98 | |
d6f2623b | 99 | return if !$rate; |
957753df | 100 | |
74d1b045 DM |
101 | # tbf does not work for unknown reason |
102 | #$TC qdisc add dev $DEV root tbf rate $RATE latency 100ms burst $BURST | |
103 | # so we use htb instead | |
104 | run_command("/sbin/tc qdisc add dev $iface root handle 1: htb default 1"); | |
105 | run_command("/sbin/tc class add dev $iface parent 1: classid 1:1 " . | |
106 | "htb rate ${rate}bps burst ${burst}b"); | |
107 | ||
5d35df41 W |
108 | run_command("/sbin/tc qdisc add dev $iface handle ffff: ingress"); |
109 | run_command("/sbin/tc filter add dev $iface parent ffff: " . | |
1b915170 | 110 | "prio 50 basic " . |
5d35df41 | 111 | "police rate ${rate}bps burst ${burst}b mtu 64kb " . |
edbdf0b2 | 112 | "drop"); |
5d35df41 | 113 | |
74d1b045 DM |
114 | if ($debug) { |
115 | print "DEBUG tc settings\n"; | |
116 | system("/sbin/tc qdisc ls dev $iface"); | |
117 | system("/sbin/tc class ls dev $iface"); | |
118 | system("/sbin/tc filter ls dev $iface parent ffff:"); | |
119 | } | |
120 | } | |
121 | ||
ec9ada18 AD |
122 | sub tap_rate_limit { |
123 | my ($iface, $rate) = @_; | |
124 | ||
125 | my $debug = 0; | |
ad066ae2 | 126 | $rate = int($rate*1024*1024) if $rate; |
ec9ada18 AD |
127 | my $burst = 1024*1024; |
128 | ||
129 | setup_tc_rate_limit($iface, $rate, $burst, $debug); | |
130 | } | |
74d1b045 | 131 | |
605bb891 DM |
132 | my $read_bridge_mtu = sub { |
133 | my ($bridge) = @_; | |
134 | ||
135 | my $mtu = PVE::Tools::file_read_firstline("/sys/class/net/$bridge/mtu"); | |
136 | die "bridge '$bridge' does not exist\n" if !$mtu; | |
137 | # avoid insecure dependency; | |
138 | die "unable to parse mtu value" if $mtu !~ /^(\d+)$/; | |
139 | $mtu = int($1); | |
140 | ||
141 | return $mtu; | |
142 | }; | |
143 | ||
32cb7d27 | 144 | my $parse_tap_device_name = sub { |
6c80e6d6 | 145 | my ($iface, $noerr) = @_; |
605bb891 DM |
146 | |
147 | my ($vmid, $devid); | |
148 | ||
149 | if ($iface =~ m/^tap(\d+)i(\d+)$/) { | |
150 | $vmid = $1; | |
151 | $devid = $2; | |
32cb7d27 | 152 | } elsif ($iface =~ m/^veth(\d+)i(\d+)$/) { |
605bb891 DM |
153 | $vmid = $1; |
154 | $devid = $2; | |
155 | } else { | |
6c80e6d6 DM |
156 | return undef if $noerr; |
157 | die "can't create firewall bridge for random interface name '$iface'\n"; | |
605bb891 DM |
158 | } |
159 | ||
160 | return ($vmid, $devid); | |
161 | }; | |
162 | ||
70ab4434 | 163 | my $compute_fwbr_names = sub { |
605bb891 DM |
164 | my ($vmid, $devid) = @_; |
165 | ||
166 | my $fwbr = "fwbr${vmid}i${devid}"; | |
f193aa74 | 167 | # Note: the firewall use 'fwln+' to filter traffic to VMs |
7d78a966 AD |
168 | my $vethfw = "fwln${vmid}i${devid}"; |
169 | my $vethfwpeer = "fwpr${vmid}p${devid}"; | |
170 | my $ovsintport = "fwln${vmid}o${devid}"; | |
605bb891 | 171 | |
70ab4434 | 172 | return ($fwbr, $vethfw, $vethfwpeer, $ovsintport); |
605bb891 DM |
173 | }; |
174 | ||
e9b54cc6 WB |
175 | sub iface_delete($) { |
176 | my ($iface) = @_; | |
177 | run_command(['/sbin/ip', 'link', 'delete', 'dev', $iface], noerr => 1) | |
178 | == 0 or die "failed to delete interface '$iface'\n"; | |
179 | } | |
180 | ||
181 | sub iface_create($$@) { | |
182 | my ($iface, $type, @args) = @_; | |
183 | run_command(['/sbin/ip', 'link', 'add', $iface, 'type', $type, @args], noerr => 1) | |
184 | == 0 or die "failed to create interface '$iface'\n"; | |
185 | } | |
186 | ||
187 | sub iface_set($@) { | |
188 | my ($iface, @opts) = @_; | |
189 | run_command(['/sbin/ip', 'link', 'set', $iface, @opts], noerr => 1) | |
190 | == 0 or die "failed to set interface options for '$iface' (".join(' ', @opts).")\n"; | |
191 | } | |
192 | ||
193 | # helper for nicer error messages: | |
194 | sub iface_set_master($$) { | |
195 | my ($iface, $master) = @_; | |
196 | if (defined($master)) { | |
197 | eval { iface_set($iface, 'master', $master) }; | |
198 | die "can't enslave '$iface' to '$master'\n" if $@; | |
199 | } else { | |
200 | eval { iface_set($iface, 'nomaster') }; | |
201 | die "can't unenslave '$iface'\n" if $@; | |
202 | } | |
203 | } | |
204 | ||
605bb891 DM |
205 | my $cond_create_bridge = sub { |
206 | my ($bridge) = @_; | |
207 | ||
208 | if (! -d "/sys/class/net/$bridge") { | |
e9b54cc6 | 209 | iface_create($bridge, 'bridge'); |
86b84237 | 210 | disable_ipv6($bridge); |
605bb891 DM |
211 | } |
212 | }; | |
213 | ||
f3ccd9b4 WB |
214 | sub disable_ipv6 { |
215 | my ($iface) = @_; | |
216 | return if !-d '/proc/sys/net/ipv6'; # ipv6 might be completely disabled | |
217 | my $file = "/proc/sys/net/ipv6/conf/$iface/disable_ipv6"; | |
218 | open(my $fh, '>', $file) or die "failed to open $file for writing: $!\n"; | |
219 | print {$fh} "1\n" or die "failed to disable link-local ipv6 for $iface\n"; | |
220 | close($fh); | |
221 | } | |
222 | ||
605bb891 | 223 | my $bridge_add_interface = sub { |
b0b34ffd | 224 | my ($bridge, $iface, $tag, $trunks) = @_; |
605bb891 | 225 | |
f3ccd9b4 WB |
226 | # drop link local address (it can't be used when on a bridge anyway) |
227 | disable_ipv6($iface); | |
e9b54cc6 | 228 | iface_set_master($iface, $bridge); |
4d25f4aa AD |
229 | |
230 | my $vlan_aware = PVE::Tools::file_read_firstline("/sys/class/net/$bridge/bridge/vlan_filtering"); | |
231 | ||
232 | if ($vlan_aware) { | |
233 | if ($tag) { | |
78e912a3 WB |
234 | system({'/sbin/bridge'} 'bridge', 'vlan', 'del', 'dev', $iface, 'vid', '1-4094') == 0 |
235 | or die "failed to remove default vlan tags of $iface\n"; | |
236 | system({'/sbin/bridge'} 'bridge', 'vlan', 'add', 'dev', $iface, 'vid', $tag, 'pvid', 'untagged') == 0 | |
237 | or die "unable to add vlan $tag to interface $iface\n"; | |
5d662b31 DC |
238 | |
239 | warn "Caution: Setting VLAN ID 1 on a VLAN aware bridge may be dangerous\n" if $tag == 1; | |
4d25f4aa AD |
240 | } else { |
241 | system("/sbin/bridge vlan add dev $iface vid 2-4094") == 0 || | |
b0b34ffd | 242 | die "unable to add default vlan tags to interface $iface\n" if !$trunks; |
9bbc4e17 | 243 | } |
b0b34ffd | 244 | |
846337ad WB |
245 | if ($trunks) { |
246 | my @trunks_array = split /;/, $trunks; | |
9bbc4e17 | 247 | foreach my $trunk (@trunks_array) { |
846337ad WB |
248 | system("/sbin/bridge vlan add dev $iface vid $trunk") == 0 || |
249 | die "unable to add vlan $trunk to interface $iface\n"; | |
250 | } | |
b0b34ffd | 251 | } |
4d25f4aa | 252 | } |
605bb891 DM |
253 | }; |
254 | ||
70ab4434 | 255 | my $ovs_bridge_add_port = sub { |
b0b34ffd AD |
256 | my ($bridge, $iface, $tag, $internal, $trunks) = @_; |
257 | ||
258 | $trunks =~ s/;/,/g if $trunks; | |
70ab4434 DM |
259 | |
260 | my $cmd = "/usr/bin/ovs-vsctl add-port $bridge $iface"; | |
261 | $cmd .= " tag=$tag" if $tag; | |
b0b34ffd AD |
262 | $cmd .= " trunks=". join(',', $trunks) if $trunks; |
263 | $cmd .= " vlan_mode=native-untagged" if $tag && $trunks; | |
264 | ||
70ab4434 DM |
265 | $cmd .= " -- set Interface $iface type=internal" if $internal; |
266 | system($cmd) == 0 || | |
267 | die "can't add ovs port '$iface'\n"; | |
f3ccd9b4 | 268 | disable_ipv6($iface); |
70ab4434 DM |
269 | }; |
270 | ||
605bb891 DM |
271 | my $activate_interface = sub { |
272 | my ($iface) = @_; | |
273 | ||
274 | system("/sbin/ip link set $iface up") == 0 || | |
275 | die "can't activate interface '$iface'\n"; | |
276 | }; | |
277 | ||
3aa99c70 AD |
278 | sub tap_create { |
279 | my ($iface, $bridge) = @_; | |
280 | ||
c02d6d1c AD |
281 | if ($have_sdn) { |
282 | my ($bridgesdn, undef) = PVE::Network::SDN::Zones::get_bridge_vlan($bridge); | |
283 | $bridge = $bridgesdn if $bridgesdn; | |
284 | } | |
285 | ||
3aa99c70 AD |
286 | die "unable to get bridge setting\n" if !$bridge; |
287 | ||
605bb891 | 288 | my $bridgemtu = &$read_bridge_mtu($bridge); |
3aa99c70 | 289 | |
9bbc4e17 | 290 | eval { |
f3ccd9b4 | 291 | disable_ipv6($iface); |
86330049 | 292 | PVE::Tools::run_command(['/sbin/ip', 'link', 'set', $iface, 'up', 'promisc', 'on', 'mtu', $bridgemtu]); |
098795e0 DM |
293 | }; |
294 | die "interface activation failed\n" if $@; | |
3aa99c70 AD |
295 | } |
296 | ||
35efc4eb AD |
297 | sub veth_create { |
298 | my ($veth, $vethpeer, $bridge, $mac) = @_; | |
299 | ||
c02d6d1c AD |
300 | if ($have_sdn) { |
301 | my ($bridgesdn, undef) = PVE::Network::SDN::Zones::get_bridge_vlan($bridge); | |
302 | $bridge = $bridgesdn if $bridgesdn; | |
303 | } | |
304 | ||
35efc4eb AD |
305 | die "unable to get bridge setting\n" if !$bridge; |
306 | ||
307 | my $bridgemtu = &$read_bridge_mtu($bridge); | |
308 | ||
309 | # create veth pair | |
310 | if (! -d "/sys/class/net/$veth") { | |
d6a2cdcb | 311 | my $cmd = "/sbin/ip link add name $veth mtu $bridgemtu type veth peer name $vethpeer mtu $bridgemtu"; |
35efc4eb AD |
312 | $cmd .= " addr $mac" if $mac; |
313 | system($cmd) == 0 || die "can't create interface $veth\n"; | |
314 | } | |
315 | ||
316 | # up vethpair | |
f3ccd9b4 WB |
317 | disable_ipv6($veth); |
318 | disable_ipv6($vethpeer); | |
35efc4eb AD |
319 | &$activate_interface($veth); |
320 | &$activate_interface($vethpeer); | |
321 | } | |
322 | ||
f3f0bc3a AD |
323 | sub veth_delete { |
324 | my ($veth) = @_; | |
325 | ||
326 | if (-d "/sys/class/net/$veth") { | |
e9b54cc6 | 327 | iface_delete($veth); |
f3f0bc3a | 328 | } |
e0a862e2 | 329 | eval { tap_unplug($veth) }; |
f3f0bc3a | 330 | } |
35efc4eb | 331 | |
605bb891 | 332 | my $create_firewall_bridge_linux = sub { |
b0b34ffd | 333 | my ($iface, $bridge, $tag, $trunks) = @_; |
605bb891 | 334 | |
32cb7d27 | 335 | my ($vmid, $devid) = &$parse_tap_device_name($iface); |
70ab4434 | 336 | my ($fwbr, $vethfw, $vethfwpeer) = &$compute_fwbr_names($vmid, $devid); |
605bb891 | 337 | |
605bb891 DM |
338 | &$cond_create_bridge($fwbr); |
339 | &$activate_interface($fwbr); | |
340 | ||
341 | copy_bridge_config($bridge, $fwbr); | |
35efc4eb | 342 | veth_create($vethfw, $vethfwpeer, $bridge); |
605bb891 | 343 | |
7d78a966 | 344 | &$bridge_add_interface($fwbr, $vethfw); |
b0b34ffd | 345 | &$bridge_add_interface($bridge, $vethfwpeer, $tag, $trunks); |
605bb891 | 346 | |
4d25f4aa | 347 | &$bridge_add_interface($fwbr, $iface); |
605bb891 DM |
348 | }; |
349 | ||
70ab4434 | 350 | my $create_firewall_bridge_ovs = sub { |
b0b34ffd | 351 | my ($iface, $bridge, $tag, $trunks) = @_; |
70ab4434 | 352 | |
32cb7d27 | 353 | my ($vmid, $devid) = &$parse_tap_device_name($iface); |
70ab4434 DM |
354 | my ($fwbr, undef, undef, $ovsintport) = &$compute_fwbr_names($vmid, $devid); |
355 | ||
356 | my $bridgemtu = &$read_bridge_mtu($bridge); | |
357 | ||
358 | &$cond_create_bridge($fwbr); | |
359 | &$activate_interface($fwbr); | |
360 | ||
361 | &$bridge_add_interface($fwbr, $iface); | |
362 | ||
b0b34ffd | 363 | &$ovs_bridge_add_port($bridge, $ovsintport, $tag, 1, $trunks); |
ac3a04b8 | 364 | &$activate_interface($ovsintport); |
70ab4434 DM |
365 | |
366 | # set the same mtu for ovs int port | |
86330049 | 367 | PVE::Tools::run_command(['/sbin/ip', 'link', 'set', $ovsintport, 'mtu', $bridgemtu]); |
9bbc4e17 | 368 | |
70ab4434 DM |
369 | &$bridge_add_interface($fwbr, $ovsintport); |
370 | }; | |
371 | ||
372 | my $cleanup_firewall_bridge = sub { | |
605bb891 DM |
373 | my ($iface) = @_; |
374 | ||
32cb7d27 | 375 | my ($vmid, $devid) = &$parse_tap_device_name($iface, 1); |
9bbc4e17 | 376 | return if !defined($vmid); |
70ab4434 DM |
377 | my ($fwbr, $vethfw, $vethfwpeer, $ovsintport) = &$compute_fwbr_names($vmid, $devid); |
378 | ||
379 | # cleanup old port config from any openvswitch bridge | |
380 | if (-d "/sys/class/net/$ovsintport") { | |
381 | run_command("/usr/bin/ovs-vsctl del-port $ovsintport", outfunc => sub {}, errfunc => sub {}); | |
382 | } | |
605bb891 DM |
383 | |
384 | # delete old vethfw interface | |
f3f0bc3a | 385 | veth_delete($vethfw); |
605bb891 DM |
386 | |
387 | # cleanup fwbr bridge | |
388 | if (-d "/sys/class/net/$fwbr") { | |
e9b54cc6 | 389 | iface_delete($fwbr); |
605bb891 DM |
390 | } |
391 | }; | |
392 | ||
f0c190ee | 393 | sub tap_plug { |
bce2a5b3 | 394 | my ($iface, $bridge, $tag, $firewall, $trunks, $rate) = @_; |
f0c190ee | 395 | |
c02d6d1c AD |
396 | if ($have_sdn) { |
397 | my ($bridgesdn, $tag) = PVE::Network::SDN::Zones::get_bridge_vlan($bridge); | |
398 | $bridge = $bridgesdn if $bridgesdn; | |
399 | $trunks = undef; | |
400 | } | |
401 | ||
4cbabd40 AD |
402 | #cleanup old port config from any openvswitch bridge |
403 | eval {run_command("/usr/bin/ovs-vsctl del-port $iface", outfunc => sub {}, errfunc => sub {}) }; | |
404 | ||
098795e0 | 405 | if (-d "/sys/class/net/$bridge/bridge") { |
70ab4434 | 406 | &$cleanup_firewall_bridge($iface); # remove stale devices |
605bb891 | 407 | |
4d25f4aa | 408 | my $vlan_aware = PVE::Tools::file_read_firstline("/sys/class/net/$bridge/bridge/vlan_filtering"); |
098795e0 | 409 | |
4d25f4aa | 410 | if (!$vlan_aware) { |
b0b34ffd | 411 | die "vlan aware feature need to be enabled to use trunks" if $trunks; |
4d25f4aa AD |
412 | my $newbridge = activate_bridge_vlan($bridge, $tag); |
413 | copy_bridge_config($bridge, $newbridge) if $bridge ne $newbridge; | |
ff042056 | 414 | $bridge = $newbridge; |
4d25f4aa AD |
415 | $tag = undef; |
416 | } | |
417 | ||
418 | if ($firewall) { | |
b0b34ffd | 419 | &$create_firewall_bridge_linux($iface, $bridge, $tag, $trunks); |
4d25f4aa | 420 | } else { |
b0b34ffd | 421 | &$bridge_add_interface($bridge, $iface, $tag, $trunks); |
4d25f4aa | 422 | } |
605bb891 | 423 | |
098795e0 | 424 | } else { |
70ab4434 DM |
425 | &$cleanup_firewall_bridge($iface); # remove stale devices |
426 | ||
427 | if ($firewall) { | |
b0b34ffd | 428 | &$create_firewall_bridge_ovs($iface, $bridge, $tag, $trunks); |
70ab4434 | 429 | } else { |
b0b34ffd | 430 | &$ovs_bridge_add_port($bridge, $iface, $tag, undef, $trunks); |
70ab4434 | 431 | } |
4cbabd40 | 432 | } |
bce2a5b3 WB |
433 | |
434 | tap_rate_limit($iface, $rate); | |
f0c190ee AD |
435 | } |
436 | ||
a84b65c0 | 437 | sub tap_unplug { |
2db1cc0d | 438 | my ($iface) = @_; |
a84b65c0 | 439 | |
2db1cc0d DM |
440 | my $path= "/sys/class/net/$iface/brport/bridge"; |
441 | if (-l $path) { | |
442 | my $bridge = basename(readlink($path)); | |
443 | #avoid insecure dependency; | |
444 | ($bridge) = $bridge =~ /(\S+)/; | |
4cbabd40 | 445 | |
e9b54cc6 | 446 | iface_set_master($iface, undef); |
4cbabd40 | 447 | } |
9bbc4e17 | 448 | |
70ab4434 | 449 | &$cleanup_firewall_bridge($iface); |
dd44486e WB |
450 | #cleanup old port config from any openvswitch bridge |
451 | eval {run_command("/usr/bin/ovs-vsctl del-port $iface", outfunc => sub {}, errfunc => sub {}) }; | |
a84b65c0 AD |
452 | } |
453 | ||
b9436cda DM |
454 | sub copy_bridge_config { |
455 | my ($br0, $br1) = @_; | |
456 | ||
457 | return if $br0 eq $br1; | |
458 | ||
9bbc4e17 | 459 | my $br_configs = [ 'ageing_time', 'stp_state', 'priority', 'forward_delay', |
ba4af65b | 460 | 'hello_time', 'max_age', 'multicast_snooping', 'multicast_querier']; |
b9436cda DM |
461 | |
462 | foreach my $sysname (@$br_configs) { | |
463 | eval { | |
464 | my $v0 = PVE::Tools::file_read_firstline("/sys/class/net/$br0/bridge/$sysname"); | |
465 | my $v1 = PVE::Tools::file_read_firstline("/sys/class/net/$br1/bridge/$sysname"); | |
466 | if ($v0 ne $v1) { | |
aec04803 | 467 | PVE::ProcFSTools::write_proc_entry("/sys/class/net/$br1/bridge/$sysname", $v0); |
b9436cda DM |
468 | } |
469 | }; | |
470 | warn $@ if $@; | |
471 | } | |
472 | } | |
473 | ||
70d89745 PRG |
474 | sub activate_bridge_vlan_slave { |
475 | my ($bridgevlan, $iface, $tag) = @_; | |
b9436cda | 476 | my $ifacevlan = "${iface}.$tag"; |
9bbc4e17 | 477 | |
b9436cda DM |
478 | # create vlan on $iface is not already exist |
479 | if (! -d "/sys/class/net/$ifacevlan") { | |
f3ccd9b4 | 480 | system("/sbin/ip link add link $iface name $ifacevlan type vlan id $tag") == 0 || |
02c9a6b4 | 481 | die "can't add vlan tag $tag to interface $iface\n"; |
b9436cda | 482 | |
86b84237 WB |
483 | # remove ipv6 link-local address before activation |
484 | disable_ipv6($ifacevlan); | |
485 | } | |
f3ccd9b4 | 486 | |
b9436cda | 487 | # be sure to have the $ifacevlan up |
605bb891 | 488 | &$activate_interface($ifacevlan); |
b9436cda DM |
489 | |
490 | # test if $vlaniface is already enslaved in another bridge | |
491 | my $path= "/sys/class/net/$ifacevlan/brport/bridge"; | |
492 | if (-l $path) { | |
493 | my $tbridge = basename(readlink($path)); | |
70d89745 | 494 | if ($tbridge ne $bridgevlan) { |
b9436cda | 495 | die "interface $ifacevlan already exist in bridge $tbridge\n"; |
eee4b32a PRG |
496 | } else { |
497 | # Port already attached to bridge: do nothing. | |
498 | return; | |
b9436cda DM |
499 | } |
500 | } | |
501 | ||
70d89745 | 502 | # add $ifacevlan to the bridge |
605bb891 | 503 | &$bridge_add_interface($bridgevlan, $ifacevlan); |
70d89745 PRG |
504 | } |
505 | ||
506 | sub activate_bridge_vlan { | |
507 | my ($bridge, $tag_param) = @_; | |
508 | ||
509 | die "bridge '$bridge' is not active\n" if ! -d "/sys/class/net/$bridge"; | |
510 | ||
511 | return $bridge if !defined($tag_param); # no vlan, simply return | |
512 | ||
513 | my $tag = int($tag_param); | |
514 | ||
515 | die "got strange vlan tag '$tag_param'\n" if $tag < 1 || $tag > 4094; | |
516 | ||
517 | my $bridgevlan = "${bridge}v$tag"; | |
518 | ||
c9030d97 PRG |
519 | my @ifaces = (); |
520 | my $dir = "/sys/class/net/$bridge/brif"; | |
899f8c4a | 521 | PVE::Tools::dir_glob_foreach($dir, '(((eth|bond)\d+|en[^.]+)(\.\d+)?)', sub { |
5ffa7628 | 522 | push @ifaces, $_[0]; |
c9030d97 PRG |
523 | }); |
524 | ||
5ffa7628 | 525 | die "no physical interface on bridge '$bridge'\n" if scalar(@ifaces) == 0; |
c9030d97 | 526 | |
a712bf6e WB |
527 | lock_network(sub { |
528 | # add bridgevlan if it doesn't already exist | |
529 | if (! -d "/sys/class/net/$bridgevlan") { | |
e9b54cc6 | 530 | iface_create($bridgevlan, 'bridge'); |
a712bf6e | 531 | } |
b9436cda | 532 | |
a712bf6e WB |
533 | # for each physical interface (eth or bridge) bind them to bridge vlan |
534 | foreach my $iface (@ifaces) { | |
535 | activate_bridge_vlan_slave($bridgevlan, $iface, $tag); | |
536 | } | |
70d89745 | 537 | |
a712bf6e | 538 | #fixme: set other bridge flags |
b9436cda | 539 | |
f3ccd9b4 WB |
540 | # remove ipv6 link-local address before activation |
541 | disable_ipv6($bridgevlan); | |
a712bf6e | 542 | # be sure to have the bridge up |
f3ccd9b4 | 543 | &$activate_interface($bridgevlan); |
a712bf6e | 544 | }); |
b9436cda DM |
545 | return $bridgevlan; |
546 | } | |
547 | ||
b6bff92e WB |
548 | sub tcp_ping { |
549 | my ($host, $port, $timeout) = @_; | |
550 | ||
551 | my $refused = 1; | |
552 | ||
553 | $timeout = 3 if !$timeout; # sane default | |
554 | if (!$port) { | |
555 | # Net::Ping defaults to the echo port | |
556 | $port = 7; | |
557 | } else { | |
558 | # Net::Ping's port_number() implies service_check(1) | |
559 | $refused = 0; | |
560 | } | |
561 | ||
562 | my ($sock, $result); | |
563 | eval { | |
564 | $result = PVE::Tools::run_with_timeout($timeout, sub { | |
565 | $sock = IO::Socket::IP->new(PeerHost => $host, PeerPort => $port, Type => SOCK_STREAM); | |
566 | $result = $refused if $! == ECONNREFUSED; | |
567 | }); | |
568 | }; | |
569 | if ($sock) { | |
570 | $sock->close(); | |
571 | $result = 1; | |
572 | } | |
573 | return $result; | |
574 | } | |
575 | ||
bf52d27b WB |
576 | sub IP_from_cidr { |
577 | my ($cidr, $version) = @_; | |
578 | ||
579 | return if $cidr !~ m!^(\S+?)/(\S+)$!; | |
580 | my ($ip, $prefix) = ($1, $2); | |
581 | ||
582 | my $ipobj = Net::IP->new($ip, $version); | |
583 | return if !$ipobj; | |
584 | ||
585 | $version = $ipobj->version(); | |
586 | ||
587 | my $binmask = Net::IP::ip_get_mask($prefix, $version); | |
588 | return if !$binmask; | |
589 | ||
590 | my $masked_binip = $ipobj->binip() & $binmask; | |
591 | my $masked_ip = Net::IP::ip_bintoip($masked_binip, $version); | |
592 | return Net::IP->new("$masked_ip/$prefix"); | |
593 | } | |
594 | ||
595 | sub is_ip_in_cidr { | |
596 | my ($ip, $cidr, $version) = @_; | |
597 | ||
598 | my $cidr_obj = IP_from_cidr($cidr, $version); | |
599 | return undef if !$cidr_obj; | |
600 | ||
601 | my $ip_obj = Net::IP->new($ip, $version); | |
602 | return undef if !$ip_obj; | |
603 | ||
604 | return $cidr_obj->overlaps($ip_obj) == $Net::IP::IP_B_IN_A_OVERLAP; | |
605 | } | |
606 | ||
beb9820f TL |
607 | |
608 | sub get_local_ip_from_cidr { | |
609 | my ($cidr) = @_; | |
610 | ||
beb9820f | 611 | my $IPs = []; |
b15e50dd TL |
612 | run_command(['/sbin/ip', 'address', 'show', 'to', $cidr, 'up'], outfunc => sub { |
613 | if ($_[0] =~ m!^\s*inet(?:6)?\s+($PVE::Tools::IPRE)(?:/\d+|\s+peer\s+)!) { | |
beb9820f TL |
614 | push @$IPs, $1; |
615 | } | |
b15e50dd | 616 | }); |
beb9820f TL |
617 | |
618 | return $IPs; | |
619 | } | |
620 | ||
87aa00de TL |
621 | sub addr_to_ip { |
622 | my ($addr) = @_; | |
623 | my ($err, $host, $port) = Socket::getnameinfo($addr, NI_NUMERICHOST | NI_NUMERICSERV); | |
624 | die "failed to get numerical host address: $err\n" if $err; | |
625 | return ($host, $port) if wantarray; | |
626 | return $host; | |
627 | } | |
628 | ||
629 | sub get_ip_from_hostname { | |
630 | my ($hostname, $noerr) = @_; | |
631 | ||
5bd1e56b | 632 | my @res = eval { PVE::Tools::getaddrinfo_all($hostname) }; |
87aa00de | 633 | if ($@) { |
4ed6974a | 634 | die "hostname lookup '$hostname' failed - $@" if !$noerr; |
87aa00de TL |
635 | return undef; |
636 | } | |
637 | ||
5bd1e56b TL |
638 | my ($ip, $family); |
639 | for my $ai (@res) { | |
640 | $family = $ai->{family}; | |
641 | my $tmpip = addr_to_ip($ai->{addr}); | |
642 | if ($tmpip !~ m/^127\.|^::1$/) { | |
643 | $ip = $tmpip; | |
644 | last; | |
645 | } | |
646 | } | |
647 | if (!defined($ip) ) { | |
4ed6974a | 648 | die "hostname lookup '$hostname' failed - got local IP address '$ip'\n" if !$noerr; |
87aa00de TL |
649 | return undef; |
650 | } | |
651 | ||
652 | return wantarray ? ($ip, $family) : $ip; | |
653 | } | |
654 | ||
a712bf6e WB |
655 | sub lock_network { |
656 | my ($code, @param) = @_; | |
657 | my $res = lock_file('/var/lock/pve-network.lck', 10, $code, @param); | |
658 | die $@ if $@; | |
659 | return $res; | |
660 | } | |
661 | ||
b9436cda | 662 | 1; |