]>
Commit | Line | Data |
---|---|---|
2231d226 WB |
1 | package Proxmox::Install::RunEnv; |
2 | ||
3 | use strict; | |
4 | use warnings; | |
5 | ||
6 | use Carp; | |
7 | use JSON qw(from_json to_json); | |
8 | use Proxmox::Log; | |
9 | ||
10 | use base qw(Exporter); | |
11 | our @EXPORT = qw(is_test_mode); | |
12 | ||
13 | my sub fromjs : prototype($) { | |
14 | return from_json($_[0], { utf8 => 1 }); | |
15 | } | |
16 | ||
17 | # Returns a hash. | |
18 | # { | |
19 | # name => { | |
20 | # size => <bytes>, | |
21 | # } | |
22 | # } | |
23 | my sub query_blockdevs : prototype() { | |
24 | my $disks = {}; | |
25 | ||
26 | my $lsblk = fromjs(qx/lsblk --bytes --json/); | |
27 | for my $disk ($lsblk->{blockdevices}->@*) { | |
28 | my ($name, $ro, $size, $type, $mountpoints) = $disk->@{qw(name ro size type mountpoints)}; | |
29 | ||
30 | next if $type ne 'disk' || $ro; | |
31 | next if grep { defined($_) } @$mountpoints; | |
32 | ||
33 | $disks->{$name} = { size => $size }; | |
34 | } | |
35 | ||
36 | return $disks; | |
37 | } | |
38 | ||
39 | # Returns a hash. | |
40 | # | |
41 | # { | |
42 | # <ifname> => { | |
43 | # mac => <mac address>, | |
44 | # index => <index>, | |
45 | # name => <ifname>, | |
46 | # addresses => [ | |
47 | # family => <inet|inet6>, | |
48 | # address => <mac address>, | |
49 | # prefix => <length>, | |
50 | # ], | |
51 | # }, | |
52 | # } | |
53 | my sub query_netdevs : prototype() { | |
54 | my $ifs = {}; | |
55 | my $default; | |
56 | ||
57 | my $interfaces = fromjs(qx/ip --json address show/); | |
58 | ||
59 | for my $if (@$interfaces) { | |
60 | my ($index, $name, $state, $mac, $addresses) = | |
61 | $if->@{qw(ifindex ifname operstate address addr_info)}; | |
62 | ||
63 | next if $state ne 'UP'; | |
64 | ||
65 | my @valid_addrs; | |
66 | for my $addr (@$addresses) { | |
67 | next if $addr->{scope} eq 'link'; | |
68 | ||
69 | my ($family, $addr, $prefix) = $addr->@{qw(family local prefixlen)}; | |
70 | ||
71 | push @valid_addrs, { | |
72 | family => $family, | |
73 | address => $addr, | |
74 | prefix => $prefix, | |
75 | }; | |
76 | } | |
77 | ||
78 | if (@valid_addrs) { | |
79 | $ifs->{$name} = { | |
80 | index => $index, | |
81 | name => $name, | |
82 | mac => $mac, | |
83 | addresses => \@valid_addrs, | |
84 | }; | |
85 | } | |
86 | } | |
87 | ||
88 | return $ifs; | |
89 | } | |
90 | ||
91 | # Returns a hash. | |
92 | # | |
93 | # { | |
94 | # gateway4 => { | |
95 | # dst => "default", | |
96 | # gateway => <ipv4>, | |
97 | # dev => <ifname>, | |
98 | # }, | |
99 | # gateway6 => { | |
100 | # dst => "default", | |
101 | # gateway => <ipv6>, | |
102 | # dev => <ifname>, | |
103 | # }, | |
104 | # } | |
105 | my sub query_routes : prototype() { | |
106 | my ($gateway4, $gateway6); | |
107 | ||
108 | my $route4 = fromjs(qx/ip -4 --json route show/); | |
109 | for my $route (@$route4) { | |
110 | if ($route->{dst} eq 'default') { | |
111 | $gateway4 = { | |
112 | dev => $route->{dev}, | |
113 | gateway => $route->{gateway}, | |
114 | }; | |
115 | last; | |
116 | } | |
117 | } | |
118 | ||
119 | my $route6 = fromjs(qx/ip -6 --json route show/); | |
120 | for my $route (@$route6) { | |
121 | if ($route->{dst} eq 'default') { | |
122 | $gateway6 = { | |
123 | dev => $route->{dev}, | |
124 | gateway => $route->{gateway}, | |
125 | }; | |
126 | last; | |
127 | } | |
128 | } | |
129 | ||
130 | my $routes; | |
131 | $routes->{gateway4} = $gateway4 if $gateway4; | |
132 | $routes->{gateway6} = $gateway6 if $gateway6; | |
133 | ||
134 | return $routes; | |
135 | } | |
136 | ||
137 | # If `/etc/resolv.conf` fails to open this returns nothing. | |
138 | # Otherwise it returns a hash: | |
139 | # { | |
140 | # dns => <first dns entry>, | |
141 | # | |
142 | my sub query_dns : prototype() { | |
143 | open my $fh , '<', '/etc/resolv.conf' or return; | |
144 | ||
145 | my @dns; | |
146 | my $domain; | |
147 | while (defined(my $line = <$fh>)) { | |
148 | if ($line =~ /^nameserver\s+(\S+)/) { | |
149 | push @dns, $1; | |
150 | } elsif (!defined($domain) && $line =~ /^domain\s+(\S+)/) { | |
151 | $domain = $1; | |
152 | } | |
153 | } | |
154 | ||
155 | my $output = { | |
156 | domain => $domain, | |
157 | @dns ? (dns => \@dns) : (), | |
158 | }; | |
159 | }; | |
160 | ||
161 | # Uses `traceroute` and `geoiplookup`/`geoiplookup6` to figure out the current country. | |
162 | # Has a 10s timeout and uses the stops at the first entry found in the geoip database. | |
163 | my sub detect_country_tracing_to : prototype($$) { | |
164 | my ($ipver, $destination) = @_; | |
165 | ||
166 | print "trying to detect country...\n"; | |
167 | open(my $TRACEROUTE_FH, '-|', | |
168 | 'traceroute', "-$ipver", '-N', '1', '-q', '1', '-n', $destination) | |
169 | or return undef; | |
170 | ||
171 | my $geoip_bin = ($ipver == 6) ? 'geoiplookup6' : 'geoiplookup'; | |
172 | ||
173 | my $country; | |
174 | ||
175 | my $previous_alarm = alarm (10); | |
176 | eval { | |
177 | local $SIG{ALRM} = sub { die "timed out!\n" }; | |
178 | my $line; | |
179 | while (defined ($line = <$TRACEROUTE_FH>)) { | |
180 | log_debug("DC TRACEROUTE: $line"); | |
181 | if ($line =~ m/^\s*\d+\s+(\S+)\s/) { | |
182 | my $geoip = qx/$geoip_bin $1/; | |
183 | log_debug("DC GEOIP: $geoip"); | |
184 | if ($geoip =~ m/GeoIP Country Edition:\s*([A-Z]+),/) { | |
185 | $country = lc ($1); | |
186 | log_info("DC FOUND: $country\n"); | |
187 | last; | |
188 | } | |
189 | } | |
190 | } | |
191 | }; | |
192 | my $err = $@; | |
193 | alarm ($previous_alarm); | |
194 | ||
195 | close($TRACEROUTE_FH); | |
196 | ||
197 | if ($err) { | |
198 | die "unable to detect country - $err\n"; | |
199 | } elsif ($country) { | |
200 | print "detected country: " . uc($country) . "\n"; | |
201 | } | |
202 | ||
203 | return $country; | |
204 | } | |
205 | ||
206 | # Returns the entire environment as a hash. | |
207 | # { | |
208 | # country => <short country>, | |
209 | # disks => <see query_blockdevs()>, | |
210 | # network => { | |
211 | # interfaces => <see query_netdevs()>, | |
212 | # routes => <see query_routes()>, | |
213 | # }, | |
214 | # dns => <see query_dns()>, | |
215 | # } | |
216 | sub query_installation_environment : prototype() { | |
217 | my $output = {}; | |
218 | ||
219 | my $routes = query_routes(); | |
220 | ||
221 | $output->{disks} = query_blockdevs(); | |
222 | $output->{network} = { | |
223 | interfaces => query_netdevs(), | |
224 | routes => $routes, | |
225 | }; | |
226 | $output->{dns} = query_dns(); | |
227 | ||
228 | my $err; | |
229 | my $country; | |
230 | if ($routes->{gateway4}) { | |
231 | $country = eval { detect_country_tracing_to(4 => '8.8.8.8') }; | |
232 | $err = $@ if !$country; | |
233 | } | |
234 | ||
235 | if (!$country && $routes->{gateway6}) { | |
236 | $country = eval { detect_country_tracing_to(6 => '2001:4860:4860::8888') }; | |
237 | $err = $@ if !$country; | |
238 | } | |
239 | ||
240 | if (defined($country)) { | |
241 | $output->{country} = $country; | |
242 | } else { | |
243 | warn ($err // "unable to detect country\n"); | |
244 | } | |
245 | ||
246 | return $output; | |
247 | } | |
248 | ||
249 | 1; |