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1 files changed, 28 insertions, 2 deletions

package network::ethernet; # $Id$ use c; use network::network; use modules; use modules::interactive; use detect_devices; use common; use run_program; use network::tools; our @dhcp_clients = qw(dhclient dhcpcd pump dhcpxd); sub install_dhcp_client { my ($in, $client) = @_; my %packages = ( "dhclient" => "dhcp-client", ); #- use default dhcp client if none is provided $client ||= $dhcp_clients[0]; $client = $packages{$client} if exists $packages{$client}; $in->do_pkgs->install($client); } sub mapIntfToDevice { my ($interface) = @_; my $hw_addr = c::getHwIDs($interface); return {} if $hw_addr =~ /^usb/; my ($bus, $slot, $func) = map { hex($_) } ($hw_addr =~ /([0-9a-f]+):([0-9a-f]+)\.([0-9a-f]+)/); $hw_addr && (every { defined $_ } $bus, $slot, $func) ? grep { $_->{pci_bus} == $bus && $_->{pci_device} == $slot && $_->{pci_function} == $func } detect_devices::probeall() : {}; } # return list of [ intf_name, module, device_description ] tuples such as: # [ "eth0", "3c59x", "3Com Corporation|3c905C-TX [Fast Etherlink]" ] # # this function try several method in order to get interface's driver and description in order to support both: # - hotplug managed devices (USB, firewire) # - special interfaces (IP aliasing, VLAN) sub get_eth_cards { my ($modules_conf) = @_; my @all_cards = detect_devices::getNet(); my @devs = detect_devices::pcmcia_probe(); my $saved_driver; # compute device description and return (interface, driver, description) tuples: return map { my $interface = $_; my $description; # 1) get interface's driver through ETHTOOL ioctl: my ($a, $detected_through_ethtool); $a = c::getNetDriver($interface); if ($a) { $detected_through_ethtool = 1; } else { # 2) get interface's driver through module aliases: $a = $modules_conf->get_alias($interface); } # workaround buggy drivers that returns a bogus driver name for the GDRVINFO command of the ETHTOOL ioctl: my %fixes = ( "p80211_prism2_cs" => 'prism2_cs', "p80211_prism2_pci" => 'prism2_pci', "p80211_prism2_usb" => 'prism2_usb', "ip1394" => "eth1394", "DL2K" => "dl2k", "hostap" => undef, #- should be either "hostap_plx", "hostap_pci" or "hostap_cs" ); $a = $fixes{$a} if exists $fixes{$a}; # 3) try to match a PCMCIA device for device description: if (my $b = find { $_->{device} eq $interface } @devs) { # PCMCIA case $a = $b->{driver}; $description = $b->{description}; } else { # 4) try to lookup a device by hardware address for device description: # maybe should have we try sysfs first for robustness? ($description) = (mapIntfToDevice($interface))[0]->{description}; } # 5) try to match a device through sysfs for driver & device description: # (eg: ipw2100 driver for intel centrino do not support ETHTOOL) if (!$description) { my $drv = readlink("/sys/class/net/$interface/driver"); if ($drv && $drv =~ s!.*/!!) { $a = $drv unless $detected_through_ethtool; my %l; my $dev_path = "/sys/class/net/$interface/device"; my $sysfs_fields = detect_devices::get_sysfs_device_id_map($dev_path); $l{$_} = hex(chomp_(cat_("$dev_path/" . $sysfs_fields->{$_}))) foreach keys %$sysfs_fields; my @cards = grep { my $dev = $_; every { $dev->{$_} eq $l{$_} } keys %l } detect_devices::probeall(); $description = $cards[0]{description} if @cards == 1; } } # 6) try to match a device by driver for device description: # (eg: madwifi, ndiswrapper, ...) if (!$description) { my @cards = grep { $_->{driver} eq ($a || $saved_driver) } detect_devices::probeall(); $description = $cards[0]{description} if @cards == 1; } $a and $saved_driver = $a; # handle multiple cards managed by the same driver [ $interface, $saved_driver, if_($description, $description) ]; } @all_cards; } sub get_eth_cards_names { my (@all_cards) = @_; map { $_->[0] => join(': ', $_->[0], $_->[2]) } @all_cards; } #- returns (link_type, mac_address) sub get_eth_card_mac_address { my ($intf) = @_; `LC_ALL= LANG= $::prefix/sbin/ip -o link show $intf 2>/dev/null` =~ m|.*link/(\S+)\s([0-9a-z:]+)\s|; } #- write interfaces MAC address in iftab sub update_iftab() { foreach my $intf (detect_devices::getNet()) { my ($link_type, $mac_address) = get_eth_card_mac_address($intf) or next; #- do not write zeroed MAC addresses in iftab, it confuses ifrename $mac_address =~ /^[0:]+$/ and next; my $descriptor = ${{ ether => 'mac', ieee1394 => 'mac_ieee1394' }}{$link_type} or next; substInFile { s/^$intf\s+.*\n//; s/^.*\s+$mac_address\n//; $_ .= qq($intf\t$descriptor $mac_address\n) if eof; } "$::prefix/etc/iftab"; } } # automatic net aliases configuration sub configure_eth_aliases { my ($modules_conf) = @_; my @pcmcia_interfaces = map { $_->{device} } detect_devices::pcmcia_probe(); foreach my $card (get_eth_cards($modules_conf)) { if (member($card->[0], @pcmcia_interfaces)) { #- do not write aliases for pcmcia cards, or cardmgr will not be loaded $modules_conf->remove_alias($card->[0]); } else { $modules_conf->set_alias($card->[0], $card->[1]); } } } 1;


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