package modalias; # TODO: # - be faster (Elapsed time: lspcidrake.pl ~ 0.28s instead of 0.12s for old lspcidrake use strict; use MDK::Common; use c; my @config_groups = ( [ "/lib/module-init-tools/modprobe.default", "/etc/modprobe.conf", "/etc/modprobe.d", ], [ "/lib/module-init-tools/ldetect-lst-modules.alias", ], [ "/lib/modules/" . c::kernel_version() . "/modules.alias", ], ); my @classes = qw(ide ieee1394 input pci pcmcia pnp serio usb); my @alias_groups; my $alias_re = qr/^\s*alias\s+(([^:]+):\S+)\s+(\S+)$/; sub alias_to_ids { my ($alias) = @_; my ($vendor, $device); # returns (vendor, device) if (($vendor, $device) = $alias =~ /:v([0-9A-F]{4})[dp]([0-9A-F]{4})/) { return ($vendor, $device); } elsif (($vendor, $device) = $alias =~ /:v0{4}([0-9A-F]{4})[dp]0{4}([0-9A-F]{4})/) { return ($vendor, $device); } } sub parse_path { my ($group, $path) = @_; if (-d $path) { parse_path($group, "$path/$_") foreach all($path); } elsif (-f $path) { foreach (cat_($path)) { if (my ($alias, $class, $module) = $_ =~ $alias_re) { my ($vendor, $device) = alias_to_ids($alias); if (member($class, @classes)) { if ($vendor) { $group->{$class} ||= {}; $group->{$class}{$vendor} ||= {}; $group->{$class}{$vendor}{$device} ||= []; push @{$group->{$class}{$vendor}{$device}}, $alias, $module; } else { push @{$group->{$class}{other}}, $alias, $module; } } } } } } sub get_alias_groups() { @alias_groups = map { my $group = {}; parse_path($group, $_) foreach @$_; $group; } @config_groups unless @alias_groups; @alias_groups; } sub get_modules { my ($modalias) = @_; my ($class) = $modalias =~ /^([^:]+):\S+$/; my ($vendor, $device) = alias_to_ids($modalias); $class && member($class, @classes) or return; require File::FnMatch; foreach my $group (get_alias_groups()) { my @aliases; foreach my $subgroup ($group->{$class}{$vendor}{$device}, $group->{$class}{other}) { foreach (group_by2(@$subgroup)) { File::FnMatch::fnmatch($_->[0], $modalias) and push @aliases, $_->[1]; } } return uniq(@aliases) if @aliases; } } 1;