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https://git.proxmox.com/git/pve-http-server
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9494318e18
Net::IP objects are bound to a version - 0/0 is treated as ipv4 only. If 'all' is present in the allow_from/deny_from list we should also add ::/0 for matching all ipv6 addresses. Signed-off-by: Stoiko Ivanov <s.ivanov@proxmox.com>
76 lines
2.2 KiB
Perl
76 lines
2.2 KiB
Perl
package PVE::APIServer::Utils;
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use strict;
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use warnings;
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use Net::IP;
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# all settings are used for pveproxy and pmgproxy
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# the ALLOW/DENY/POLICY is also used by spiceproxy
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sub read_proxy_config {
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my ($proxy_name) = @_;
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my $conffile = "/etc/default/$proxy_name";
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# Note: evaluate with bash
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my $shcmd = ". $conffile;\n";
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$shcmd .= 'echo \"LISTEN_IP:\$LISTEN_IP\";';
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$shcmd .= 'echo \"ALLOW_FROM:\$ALLOW_FROM\";';
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$shcmd .= 'echo \"DENY_FROM:\$DENY_FROM\";';
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$shcmd .= 'echo \"POLICY:\$POLICY\";';
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$shcmd .= 'echo \"CIPHERS:\$CIPHERS\";';
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$shcmd .= 'echo \"DHPARAMS:\$DHPARAMS\";';
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$shcmd .= 'echo \"HONOR_CIPHER_ORDER:\$HONOR_CIPHER_ORDER\";';
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$shcmd .= 'echo \"COMPRESSION:\$COMPRESSION\";';
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my $data = -f $conffile ? `bash -c "$shcmd"` : '';
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my $res = {};
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while ($data =~ s/^(.*)\n//) {
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my ($key, $value) = split(/:/, $1, 2);
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next if !defined($value) || $value eq '';
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if ($key eq 'ALLOW_FROM' || $key eq 'DENY_FROM') {
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my $ips = [];
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foreach my $ip (split(/,/, $value)) {
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if ($ip eq 'all') {
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push @$ips, Net::IP->new('0/0') || die Net::IP::Error() . "\n";
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push @$ips, Net::IP->new('::/0') || die Net::IP::Error() . "\n";
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next;
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}
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push @$ips, Net::IP->new(normalize_v4_in_v6($ip)) || die Net::IP::Error() . "\n";
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}
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$res->{$key} = $ips;
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} elsif ($key eq 'LISTEN_IP') {
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$res->{$key} = $value;
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} elsif ($key eq 'POLICY') {
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die "unknown policy '$value'\n" if $value !~ m/^(allow|deny)$/;
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$res->{$key} = $value;
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} elsif ($key eq 'CIPHERS') {
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$res->{$key} = $value;
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} elsif ($key eq 'DHPARAMS') {
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$res->{$key} = $value;
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} elsif ($key eq 'HONOR_CIPHER_ORDER' || $key eq 'COMPRESSION') {
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die "unknown value '$value' - use 0 or 1\n" if $value !~ m/^(0|1)$/;
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$res->{$key} = $value;
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} else {
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# silently skip everythin else?
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}
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}
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return $res;
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}
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sub normalize_v4_in_v6 {
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my ($ip_text) = @_;
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my $ip = Net::IP->new($ip_text) || die Net::IP::Error() . "\n";
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my $v4_mapped_v6_prefix = Net::IP->new('::ffff:0:0/96');
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if ($v4_mapped_v6_prefix->overlaps($ip)) {
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return Net::IP::ip_get_embedded_ipv4($ip_text);
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}
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return $ip_text;
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}
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1;
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