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-rw-r--r--perl-install/network/wireless.pm198
1 files changed, 198 insertions, 0 deletions
diff --git a/perl-install/network/wireless.pm b/perl-install/network/wireless.pm
new file mode 100644
index 000000000..96a607ce6
--- /dev/null
+++ b/perl-install/network/wireless.pm
@@ -0,0 +1,198 @@
+package network::wireless;
+
+use strict;
+use common;
+use modules;
+use detect_devices;
+use c;
+
+sub convert_wep_key_for_iwconfig {
+ #- 5 or 13 characters, consider the key as ASCII and prepend "s:"
+ #- else consider the key as hexadecimal, do not strip dashes
+ #- always quote the key as string
+ my ($key) = @_;
+ member(length($key), (5, 13)) ? "s:$key" : $key;
+}
+
+sub get_wep_key_from_iwconfig {
+ #- strip "s:" if the key is 5 or 13 characters (ASCII)
+ #- else the key as hexadecimal, do not modify
+ my ($key) = @_;
+ $key =~ s/^s:// if member(length($key), (7,15));
+ $key;
+}
+
+sub convert_key_for_wpa_supplicant {
+ my ($key) = @_;
+ if ($key =~ /^([[:xdigit:]]{4}[\:-])+[[:xdigit:]]{2,}$/) {
+ $key =~ s/[\:-]//g;
+ return lc($key);
+ } else {
+ return qq("$key");
+ }
+}
+
+#- FIXME: to be improved (quotes, comments) and moved in common files
+sub wlan_ng_update_vars {
+ my ($file, $vars) = @_;
+ substInFile {
+ while (my ($key, $value) = each(%$vars)) {
+ s/^#?\Q$key\E=(?:"[^#]*"|[^#\s]*)(\s*#.*)?/$key=$value$1/ and delete $vars->{$key};
+ }
+ $_ .= join('', map { "$_=$vars->{$_}\n" } keys %$vars) if eof;
+ } $file;
+}
+
+sub wlan_ng_configure {
+ my ($in, $ethntf, $module) = @_;
+ $in->do_pkgs->install('prism2-utils');
+ if ($ethntf->{WIRELESS_ESSID}) {
+ my $wlan_conf_file = "$::prefix/etc/wlan/wlan.conf";
+ my @wlan_devices = split(/ /, (cat_($wlan_conf_file) =~ /^WLAN_DEVICES="(.*)"/m)[0]);
+ push @wlan_devices, $ethntf->{DEVICE} unless member($ethntf->{DEVICE}, @wlan_devices);
+ #- enable device and make it use the choosen ESSID
+ wlan_ng_update_vars($wlan_conf_file,
+ {
+ WLAN_DEVICES => qq("@wlan_devices"),
+ "SSID_$ethntf->{DEVICE}" => qq("$ethntf->{WIRELESS_ESSID}"),
+ "ENABLE_$ethntf->{DEVICE}" => "y"
+ });
+ my $wlan_ssid_file = "$::prefix/etc/wlan/wlancfg-$ethntf->{WIRELESS_ESSID}";
+ #- copy default settings for this ESSID if config file does not exist
+ -f $wlan_ssid_file or cp_f("$::prefix/etc/wlan/wlancfg-DEFAULT", $wlan_ssid_file);
+ #- enable/disable encryption
+ wlan_ng_update_vars($wlan_ssid_file,
+ {
+ (map { $_ => $ethntf->{WIRELESS_ENC_KEY} ? "true" : "false" } qw(lnxreq_hostWEPEncrypt lnxreq_hostWEPDecrypt dot11PrivacyInvoked dot11ExcludeUnencrypted)),
+ AuthType => $ethntf->{WIRELESS_ENC_KEY} ? qq("sharedkey") : qq("opensystem"),
+ if_($ethntf->{WIRELESS_ENC_KEY},
+ dot11WEPDefaultKeyID => 0,
+ dot11WEPDefaultKey0 => qq("$ethntf->{WIRELESS_ENC_KEY}")
+ )
+ });
+ #- hide settings for non-root users
+ chmod 0600, $wlan_conf_file;
+ chmod 0600, $wlan_ssid_file;
+ }
+ #- apply settings on wlan interface
+ require services;
+ services::restart($module eq 'prism2_cs' ? 'pcmcia' : 'wlan');
+}
+
+sub wpa_supplicant_get_driver {
+ my ($module) = @_;
+ $module =~ /^hostap_/ ? "hostap" :
+ $module eq "prism54" ? "prism54" :
+ $module =~ /^ath_/ ? "madwifi" :
+ $module =~ /^at76c50|atmel_/ ? "atmel" :
+ $module eq "ndiswrapper" ? "ndiswrapper" :
+ $module =~ /^ipw2[12]00$/ ? "ipw" :
+ "wext";
+}
+
+sub wpa_supplicant_configure {
+ my ($in, $ethntf) = @_;
+ require services;
+ $in->do_pkgs->install('wpa_supplicant');
+
+ wpa_supplicant_add_network({
+ ssid => qq("$ethntf->{WIRELESS_ESSID}"),
+ psk => network::tools::convert_key_for_wpa_supplicant($ethntf->{WIRELESS_ENC_KEY}),
+ scan_ssid => 1,
+ });
+}
+
+sub wpa_supplicant_add_network {
+ my ($new_network) = @_;
+ my $wpa_supplicant_conf = "$::prefix/etc/wpa_supplicant.conf";
+ my $s;
+ my %network;
+ foreach (cat_($wpa_supplicant_conf)) {
+ if (%network) {
+ #- in a "network = {}" block
+ if (/^\s*(\w+)=(.*?)(\s*#.*)?$/) {
+ push @{$network{entries}}, { key => $1, value => $2, comment => $3 };
+ $1 eq 'ssid' and $network{ssid} = $2;
+ } elsif (/^\}/) {
+ #- end of network block, write it
+ $s .= "network={$network{comment}\n";
+ my $update = $network{ssid} eq $new_network->{ssid};
+ foreach (@{$network{entries}}) {
+ my $key = $_->{key};
+ if ($update) {
+ #- do not write entry if not provided in the new network
+ exists $new_network->{$key} or next;
+ #- update value from the new network
+ $_->{value} = delete $new_network->{$key};
+ }
+ if ($key) {
+ $s .= " $key=$_->{value}$_->{comment}\n";
+ } else {
+ $s .= " $_->{comment}\n";
+ }
+ }
+ if ($update) {
+ while (my ($key, $value) = each(%$new_network)) {
+ $s .= " $key=$value\n";
+ }
+ }
+ $s .= "}\n";
+ undef %network;
+ $update and undef $new_network;
+ } else {
+ #- unrecognized, keep it anyway
+ push @{$network{entries}}, { comment => $_ };
+ }
+ } else {
+ if (/^\s*network={(.*)/) {
+ #- beginning of a new network block
+ $network{comment} = $1;
+ } else {
+ #- keep other options, comments
+ $s .= $_;
+ }
+ }
+ }
+ if ($new_network) {
+ #- network wasn't found, write it
+ $s .= "\nnetwork={\n";
+ #- write ssid first
+ if (my $ssid = delete $new_network->{ssid}) {
+ $s .= " ssid=$ssid\n";
+ }
+ while (my ($key, $value) = each(%$new_network)) {
+ $s .= " $key=$value\n";
+ }
+ $s .= "}\n";
+ }
+ output($wpa_supplicant_conf, $s);
+ #- hide keys for non-root users
+ chmod 0600, $wpa_supplicant_conf;
+}
+
+sub ndiswrapper_installed_drivers() {
+ `ndiswrapper -l` =~ /(\w+)\s+driver present/mg;
+}
+
+sub ndiswrapper_available_drivers() {
+ `ndiswrapper -l` =~ /(\w+)\s+driver present, hardware present/mg;
+}
+
+sub ndiswrapper_setup() {
+ eval { modules::unload("ndiswrapper") };
+ #- unload ndiswrapper first so that the newly installed .inf files will be read
+ eval { modules::load("ndiswrapper") };
+
+ #- FIXME: move this somewhere in get_eth_cards, so that configure_eth_aliases correctly writes ndiswrapper
+ #- find the first interface matching an ndiswrapper driver, try ethtool then sysfs
+ my @available_drivers = ndiswrapper_available_drivers();
+ my $ntf_name = find {
+ my $drv = c::getNetDriver($_) || readlink("/sys/class/net/$_/driver");
+ $drv =~ s!.*/!!;
+ member($drv, @available_drivers);
+ } detect_devices::getNet();
+ #- fallback on wlan0
+ return $ntf_name || "wlan0";
+}
+
+1;