diff options
author | John Estabrook <jestabro@vyos.io> | 2021-09-30 12:56:57 -0500 |
---|---|---|
committer | GitHub <noreply@github.com> | 2021-09-30 12:56:57 -0500 |
commit | 4e0adbe9fcfccb6b1afd70e745aefa5244deaa62 (patch) | |
tree | 4f6deae8ab5638011fb331b5dcb95e4cb835d95c | |
parent | eb8c1520766b9b44c72c9359eeda3faff00db7b2 (diff) | |
parent | 7500ce0fc8ed65da2dd763a193122c5769b95520 (diff) | |
download | vyatta-cfg-system-4e0adbe9fcfccb6b1afd70e745aefa5244deaa62.tar.gz vyatta-cfg-system-4e0adbe9fcfccb6b1afd70e745aefa5244deaa62.zip |
Merge pull request #171 from jestabro/interface-names
interface-names: T3869: use vyos-interface-rescan instead of legacy
-rw-r--r-- | Makefile.am | 8 | ||||
-rw-r--r-- | scripts/XorpConfigParser.pm | 618 | ||||
-rwxr-xr-x | scripts/system/vyatta_interface_rescan | 168 | ||||
-rwxr-xr-x | scripts/vyatta_net_name | 278 |
4 files changed, 0 insertions, 1072 deletions
diff --git a/Makefile.am b/Makefile.am index 1794a4e7..940bccce 100644 --- a/Makefile.am +++ b/Makefile.am @@ -2,7 +2,6 @@ bin_sudo_usersdir = $(bindir)/sudo-users curverdir = $(sysconfdir)/config-migrate/current checkparamsonrebootdir = $(bindir)/sudo-users/check-params-on-reboot.d initddir = /etc/init.d -share_perl5dir = $(datadir)/perl5 bin_SCRIPTS = sbin_SCRIPTS = @@ -21,7 +20,6 @@ sbin_SCRIPTS += scripts/vyatta-dhcp-helper.pl sbin_SCRIPTS += scripts/check_file_in_config_dir sbin_SCRIPTS += scripts/vyatta-grub-setup sbin_SCRIPTS += scripts/standalone_root_pw_reset -sbin_SCRIPTS += scripts/system/vyatta_interface_rescan sbin_SCRIPTS += scripts/system/vyatta_update_sysctl.pl sbin_SCRIPTS += scripts/snmp/if-mib-alias sbin_SCRIPTS += scripts/vyatta-interfaces.pl @@ -38,16 +36,10 @@ sbin_SCRIPTS += scripts/install/install-image sbin_SCRIPTS += scripts/vyatta-dhcpv6-client.pl sbin_SCRIPTS += scripts/vyos-persistpath -share_perl5_DATA = -share_perl5_DATA += scripts/XorpConfigParser.pm - sysconf_DATA += sysconf/LICENSE sysconf_DATA += sysconf/filecaps sysconf_DATA += sysconf/netdevice -libudevdir = /lib/udev -libudev_SCRIPTS = scripts/vyatta_net_name - rsyslogdir = /etc/rsyslog.d curver_DATA = cfg-version/vrrp@3 diff --git a/scripts/XorpConfigParser.pm b/scripts/XorpConfigParser.pm deleted file mode 100644 index 3a4035f8..00000000 --- a/scripts/XorpConfigParser.pm +++ /dev/null @@ -1,618 +0,0 @@ -# Perl module for parsing config files. - -use lib "/opt/vyatta/share/perl5/"; - -package XorpConfigParser; - -use strict; -my %data; - -my %fields = ( _data => \%data ); - -sub new { - my $that = shift; - my $class = ref($that) || $that; - my $self = { %fields, }; - - bless $self, $class; - return $self; -} - -# -# This method is used to copy nodes whose names begin with a particular string -# from one array to another. -# -# Parameters: -# -# $from Reference to the source array -# $to Reference to the destination array -# $name The string with which the beginning of the node names will be matched -# -sub copy_node { - my ( $self, $from, $to, $name ) = @_; - if ( !defined($from) || !defined($to) || !defined($name) ) { - return; - } - - foreach my $node (@$from) { - my $stringNodeNameHere = $node->{'name'}; - if ( $stringNodeNameHere =~ /^$name.*/ ) { - foreach my $nodeCheck (@$to) { - my $stringCheck = $nodeCheck->{'name'}; - if ( $name eq $stringCheck ) { - $nodeCheck->{'value'} = $node->{'value'}; - $nodeCheck->{'children'} = $node->{'children'}; - $nodeCheck->{'comment'} = $node->{'comment'}; - $nodeCheck->{'disable'} = $node->{'disable'}; - return; - } - } - push( @$to, $node ); - } - } -} - -# -# This method is used to create duplicate copies of multinodes with the name -# specified, and to return the new copies in a new array. -# -# $nodes A reference to an array of multinodes -# $name The name of the multinodes to copy into the new array -# -sub copy_multis { - my ( $self, $nodes, $name ) = @_; - - return if ( !defined($nodes) || !defined($name) ); - - my @multis; - - foreach my $node (@$nodes) { - my $stringNodeNameHere = $node->{'name'}; - if ( $stringNodeNameHere =~ /$name\s(\S+)/ ) { - my $stringNameHere = $1; - my %multi = ( - 'name' => $stringNameHere, - 'comment' => $node->{'comment'}, - 'value' => $node->{'value'}, - 'disable' => $node->{'disable'}, - 'children' => $node->{'children'} - ); - push( @multis, \%multi ); - } - } - - return @multis; -} - -# -# This method is used to comment out a particular child. -# -# $children A reference to an array of children -# $name The name of the child to comment out -# $comment The comment string that will be included inside the comment -# -sub comment_out_child { - my ( $self, $children, $name, $comment ) = @_; - if ( !defined($children) || !defined($name) ) { - return; - } - - for ( my $i = 0 ; $i < @$children ; $i++ ) { - my $stringNodeNameHere = @$children[$i]->{'name'}; - if ( $name eq $stringNodeNameHere ) { - $self->comment_out_node( @$children[$i] ); - if ( defined($comment) ) { - @$children[$i]->{'comment_out'} = $comment; - } - } - } -} - -# -# This method is used to comment out a particular node. -# -# $node A reference to the node to comment out -# -sub comment_out_node { - my ( $self, $node ) = @_; - if ( !defined($node) ) { - return; - } - - $node->{'comment_out'} = "1"; -} - -# -# This method is used to create a node with the path specified. The method -# will create parent nodes as necessary. -# -# $path A reference to the array containing the path segments -# -sub create_node { - my ( $self, $path ) = @_; - - my $hash = \%data; - SEGMENT: - foreach my $segment (@$path) { - my $children = $hash->{'children'}; - - unless ($children) { - my @new_children; - $hash->{'children'} = \@new_children; - $children = \@new_children; - } - - foreach my $child (@$children) { - my $name = $child->{'name'}; - next unless $name; - - if ( $name eq $segment ) { - $hash = $child; # record insertion point - next SEGMENT; - } - } - - my %new_hash = ( 'name' => $segment ); - - if ($hash != \%data) { - # insertion in subtree - push @$children, \%new_hash; - } else { - # special case for insertion at top put new before version comment - my @comments; - while (my $child = pop @$children) { - if ($child->{'comment'}) { - unshift @comments, $child; - } else { - push @$children, $child; - last; - } - } - - push @$children, \%new_hash; - push @$children, @comments; - } - $hash = \%new_hash; - } - return $hash; -} - -# -# This method is used to delete a child node with the name specified from an array of child nodes. -# -# $children A reference to the array of child nodes -# $name The name of the child node to delete -# -sub delete_child { - my ( $self, $children, $name ) = @_; - return if ( !defined($children) || !defined($name) ); - - for ( my $i = 0 ; $i < @$children ; $i++ ) { - my $stringNodeNameHere = @$children[$i]->{'name'}; - if ( $name eq $stringNodeNameHere ) { - @$children[$i] = undef; - } - } -} - -# -# This method is used to return a reference to the child node -# with the name specified. -# -# $children A reference to an array containing the child nodes. -# $name The name of the child node reference to which will be returned. -# -# If the child node with the name specified is not found, -# then 'undef' is returned. -# -sub find_child { - my ( $self, $children, $name ) = @_; - return if ( !defined($children) || !defined($name) ); - - foreach my $child (@$children) { - return $child if ( $name eq $child->{'name'} ); - } - return; -} - -# $ref: reference to the node to be used as the starting point. -# the same as node_exists() except that the starting point is the specified -# node (instead of root). -sub node_exists_with_ref { - my ( $self, $ref, $path ) = @_; - my @parr = split / /, $path; - if ( defined( $self->get_node_with_ref( $ref, \@parr ) ) ) { - return 1; - } - return 0; -} - -# $path: a space-delimited string representing the path to a node. -# e.g., 'interfaces ethernet eth0'. note that the path -# is relative from the root level. -# returns 1 if the specified node exists. otherwise returns 0. -sub node_exists { - my ( $self, $path ) = @_; - my @parr = split / /, $path; - - return $self->get_node( \@parr ); -} - -# $ref: reference to the node to be used as the starting point. -# the same as get_node() except that the starting point is the specified -# node (instead of root). -sub get_node_with_ref { - my ( $self, $ref, $path ) = @_; - my $hash = $ref; - - SEGMENT: - foreach my $segment (@$path) { - my $children = $hash->{'children'}; - return unless $children; - - foreach my $child (@$children) { - next unless ( $child->{'name'} eq $segment ); - - $hash = $child; - next SEGMENT; - } - - # No children matched segment - return; - } - - return $hash; -} - -# -# This method is used to return a reference to the hash -# of the node with the path specified. -# -# $path - reference to an array containing the path segments of the node. -# -# If the path is invalid, then undef is returned. -sub get_node { - my ( $self, $path ) = @_; - - return $self->get_node_with_ref( $self->{_data}, $path ); -} - -# -# Move a subtree from one place to another in hierarchy -# Assumes both $from and $to exist -# Returns undef if no match -sub move_child { - my ( $self, $from, $to, $name ) = @_; - my $source = $from->{'children'}; - return unless $source; - - for ( my $i = 0 ; $i < @$source ; $i++ ) { - my $match = @$source[$i]; - next unless $match->{'name'} eq $name; - splice @$source, $i, 1; # remove old list - - my $children = $to->{'children'}; - unless ($children) { - my @new_children; - $to->{'children'} = \@new_children; - $children = \@new_children; - } - - push @$children, $match; - return $match; - } - - return; -} - -# -# This method is used to insert a comment at a particular path. -# -# $path A reference to an array containing the path segments to the -# node for which the comment is to be inserted. The comment -# will appear above the node. -# -# If the node with the path specified does not exist, a node with empty name -# will be created for the comment. -# -sub push_comment { - my ( $self, $path, $comment ) = @_; - - my $hash = \%data; - foreach my $segment (@$path) { - my $children = $hash->{'children'}; - if ( !defined($children) ) { - my @children; - $hash->{'children'} = \@children; - $children = \@children; - } - - my $child_found = 0; - foreach my $child (@$children) { - if ( $child->{'name'} eq $segment ) { - $child_found = 1; - $hash = $child; - last; - } - } - - if ( $child_found == 0 ) { - my %new_hash = ( 'name' => $segment ); - push( @$children, \%new_hash ); - $hash = \%new_hash; - } - } - - my %new_comment = ( 'comment' => $comment ); - my $childrenPush = $hash->{'children'}; - if ( !defined($childrenPush) ) { - my @new_children; - $hash->{'children'} = \@new_children; - $childrenPush = \@new_children; - } - push( @$childrenPush, \%new_comment ); -} - -# -# This method is used to set the value of a particular node -# -# $path A reference to an array containing the path segments to the node -# $value String of the value to set -# -sub set_value { - my ( $self, $path, $value ) = @_; - - my $hash = $self->create_node($path); - if ( defined($hash) ) { - $hash->{'value'} = $value; - } -} - -# -# This method is used to set the value of a particular node -# -# $path A reference to an array containing the path segments to the node -# $value String of the value to set -# -sub set_disable { - my ( $self, $path ) = @_; - my $hash = $self->create_node($path); - if ( defined($hash) ) { - $hash->{'disable'} = 'true'; - } -} - -# -# This method is used to generate the output of the node tree in the XORP config -# file format. The output is printed out to currently selected standard out. -# -# $depth Number of indents, used when this method calls itself -# recursively, should be 0 when used. -# $hash A reference to the parent node, should be the roor node when -# used. -# -sub output { - my ( $self, $depth, $hash ) = @_; - - $hash = $self->{_data} unless $hash; - - my $comment = $hash->{'comment'}; - print '/*' . $comment . "*/\n" - if $comment; - - my $children = $hash->{'children'}; - foreach my $child (@$children) { - next unless $child; - my $name = $child->{'name'}; - - my $comment_out = $child->{'comment_out'}; - if ($comment_out) { - print "\n"; - print "/* --- $comment_out --- */\n" - if ( $comment_out ne "1" ); - print -"/* --- CONFIGURATION COMMENTED OUT DURING MIGRATION BELOW ---\n"; - } - - print " " x $depth; - my $value = $child->{'value'}; - if ($value) { - print "$name $value"; - print "\n"; - } - else { - my $print_brackets = 0; - my $children = $child->{'children'}; - if ( defined($children) && @$children > 0 ) { - $print_brackets = 1; - } - elsif ( defined($name) && !( $name =~ /\s/ ) ) { - $print_brackets = 1; - } - - if ($name) { - print "$name"; - if ($print_brackets) { - print " {"; - } - print "\n"; - } - - $self->output( $depth + 1, $child ); - if ($print_brackets) { - print " " x $depth; - print "}\n"; - } - } - - print -" --- CONFIGURATION COMMENTED OUT DURING MIGRATION ABOVE --- */\n\n" - if ($comment_out); - } -} - -# -# This method is used to parse the XORP config file specified into the internal tree -# structure that the methods above process and manipulate. -# -# $file String of the filename to parse -# -sub parse { - my ( $self, $file ) = @_; - - %data = (); - - open my $in, '<', $file - or die "Error! Unable to open file \"$file\". $!"; - - my $contents = ""; - while (<$in>) { - $contents .= $_; - } - close $in; - - my @array_contents = split( '', $contents ); - - # print scalar(@array_contents) . "\n"; - - my $length_contents = @array_contents; - my $colon = 0; - my $colon_quote = 0; - my $in_quote = 0; - my $name = ''; - my $value = undef; - my $disable = undef; - my @path; - my %tree; - - for ( my $i = 0 ; $i < $length_contents ; ) { - my $c = $array_contents[$i]; - my $cNext = $array_contents[ $i + 1 ]; - - if ( $colon == 1 ) { - my $value_end = 0; - if ( $c eq '"' ) { - $value .= $c; - if ( $colon_quote == 1 ) { - $value_end = 1; - } - else { - $colon_quote = 1; - } - } - elsif ( $c eq '\\' && $cNext eq '"' ) { - $value .= '\\"'; - $i++; - } - elsif ( defined($value) ) { - if ( ( length($value) > 0 ) || ( !( $c =~ /\s/ ) ) ) { - $value .= $c; - } - } - - if ( $colon_quote == 0 - && ( $cNext eq '}' || $cNext eq ';' || $cNext =~ /\s/ ) ) - { - $value_end = 1; - } - $i++; - - if ( $value_end == 1 ) { - if ( length($value) > 0 ) { - - # print "Path is: \"@path\" Value is: $value\n"; - $self->set_value( \@path, $value ); - $value = undef; - } - pop(@path); - $colon_quote = 0; - $colon = 0; - } - next; - } - - # ! $colon - # check for quotes - if ( $c eq '"' ) { - if ($in_quote) { - $in_quote = 0; - } - else { - $in_quote = 1; - } - $name .= '"'; - $i++; - next; - } - elsif ( $c eq '\\' && $cNext eq '"' ) { - $name .= '\\"'; - $i += 2; - next; - } - - if ( !$in_quote && $c eq '!' && $cNext eq ' ') { - $disable = 'true'; - $i += 2; - } - elsif ( !$in_quote && $c eq '/' && $cNext eq '*' ) { - my $comment_text = ''; - my $comment_end = index( $contents, '*/', $i + 2 ); - if ( $comment_end == -1 ) { - $comment_text = substr( $contents, $i + 2 ); - } - else { - $comment_text = - substr( $contents, $i + 2, $comment_end - $i - 2 ); - $i = $comment_end + 2; - } - - # print 'Comment is: "' . $comment_text . "\"\n"; - $self->push_comment( \@path, $comment_text ); - } - elsif (( !$in_quote && $c eq '{' ) - || ( $c eq ':' && !( $name =~ /\s/ ) ) - || $c eq "\n" ) - { - $name =~ s/^\s+|\s$//g; - - if ( length($name) > 0 ) { - push( @path, $name ); - - if (defined $disable && $disable eq 'true') { - $self->set_disable(\@path); - $disable = undef; - } - - # print "Path is: \"@path\" Name is: \"$name\"\n"; - $self->set_value( \@path, $value ); - $name = ''; - - if ( $c eq "\n" ) { - pop(@path); - } - if ( $c eq ':' ) { - $colon = 1; - } - } - - $i++; - } - elsif ( !$in_quote && $c eq '}' ) { - pop(@path); - $name = ''; - $disable = undef; - $i++; - } - elsif ( !$in_quote && $c eq ';' ) { - $i++; - } - else { - if ( ( length($name) > 0 ) || ( !( $c =~ /\s/ ) ) ) { - $name .= $c; - } - $i++; - } - } -} - -1; diff --git a/scripts/system/vyatta_interface_rescan b/scripts/system/vyatta_interface_rescan deleted file mode 100755 index 2e8ad8ca..00000000 --- a/scripts/system/vyatta_interface_rescan +++ /dev/null @@ -1,168 +0,0 @@ -#! /usr/bin/perl - -# This program is free software; you can redistribute it and/or modify -# it under the terms of the GNU General Public License version 2 as -# published by the Free Software Foundation. -# -# This program is distributed in the hope that it will be useful, but -# WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -# General Public License for more details. -# -# This code was originally developed by Vyatta, Inc. -# Portions created by Vyatta are Copyright (C) 2010 Vyatta, Inc. -# All Rights Reserved. - -# Thus updates the configuration to add new interfaces. -# It is run on boot after udev and before vyatta configuration. - -use strict; -use lib "/opt/vyatta/share/perl5/"; -use Sys::Syslog qw(:standard :macros); -use XorpConfigParser; -use File::Copy; - -my $TMPFILE = "/tmp/config.boot.$$"; - -# These vendors are known to violate the local MAC address assignment convention -my %whitelist = ( - '02:07:01' => 'Interlan', - '02:60:60' => '3Com', - '02:60:8c' => '3Com', - '02:a0:c9' => 'Intel', - '02:aa:3c' => 'Olivetti', - '02:cf:1f' => 'CMC', - '02:e0:3b' => 'Prominet', - '02:e6:d3' => 'BTI', - '52:54:00' => 'Realtek', - '52:54:4c' => 'Novell 2000', - '52:54:ab' => 'Realtec', - 'e2:0c:0f' => 'Kingston Technologies', -); - -# Ignore devices with local assigned or invalid mac address, -# these devices don't have a persistent address -sub persistent_address { - my $mac = shift; - - return if ($mac eq '00:00:00:00:00:00'); # zero address is reserved - - # get first octet - return unless ($mac =~ /^([0-9a-f][0-9a-f]):/); - my $oct0 = hex($1); - - return if ($oct0 & 0x1); # skip it is a multicast address - - return 1 unless ($oct0 & 0x2); # this is good, not locally assigned - - return 1 if ( -d '/proc/xen' ); # workaround Xen breakage - - # unless it is in whitelist, it is non persistent - $mac =~ /^([0-9a-f][0-9a-f]:[0-9a-f][0-9a-f]:[0-9a-f][0-9a-f])/; - return $whitelist{$1}; -} - -# Map from eth0 to ethernet -# TODO make smarter if more types -sub interface_type { - my $ifname = shift; - - return "ethernet" if ($ifname =~ /^eth/); - return "wireless" if ($ifname =~ /^wlan/); - - die "unknown interface name %s\n", $ifname; -} - -sub get_hwid { - my $name = shift; - - open (my $f, '<', $name) - or die "Can't open $name : $!"; - - my $hwaddr = <$f>; - chomp $hwaddr; - close $f; - - return $hwaddr; -} - -# Determine phy for wlan device -# (This is ugly) -sub get_phy { - my $wlan = shift; - my $phypath = "/sys/class/net/$wlan/phy80211"; - - # link should be: ../../ieee80211/phy0 - return unless (readlink($phypath) =~ m!../../ieee80211/(phy[0-9]+)$!); - - return $1; -} - -# vyatta_net_name leaves files in /run/udev/vyatta -# the filename is the interface and the contents are the hardware id -sub interface_rescan { - my ($VYATTAUDEV, $BOOTFILE) = @_; - - # parse existing config - my $xcp = new XorpConfigParser(); - $xcp->parse($BOOTFILE); - - # get list of changed interfaces - opendir( my $dir, $VYATTAUDEV ) - or die "Can't open $VYATTAUDEV : $!"; - my @interfaces = grep { ! /^\./ } readdir($dir); - close $dir; - - foreach my $ifname (sort @interfaces) { - my $hwaddr = get_hwid("$VYATTAUDEV/$ifname"); - - # Ignore devices that disappear (or get renamed) - unless (-d "/sys/class/net/$ifname") { - syslog(LOG_INFO, "%s: does not exist", $ifname); - next; - } - - unless (persistent_address($hwaddr)) { - syslog(LOG_NOTICE, "%s: skipping address %s is not persistent", - $ifname, $hwaddr); - next; - } - - # Add new entry to config - my $ifpath = interface_type($ifname) . " $ifname"; - - syslog(LOG_INFO, "add config for %s hw-id %s", $ifname, $hwaddr); - $xcp->create_node(['interfaces',$ifpath,"hw-id $hwaddr"]); - - # Add existing phy entry for wireless - if ($ifname =~ /^wlan/) { - my $phy = get_phy($ifname); - $xcp->create_node(['interfaces',$ifpath,"physical-device $phy"]) if $phy; - } - - } - - # Rewrite new config file - open (my $tmp, '>', $TMPFILE) - or die "Can't open $TMPFILE : $!"; - - select $tmp; - $xcp->output(0); - select STDOUT; - close $tmp; - - copy($TMPFILE, $BOOTFILE) - or die "Can't copy $TMPFILE to $BOOTFILE : $!"; - - unlink($TMPFILE); -} - -# main -die "vyatta_interface_rescan called with wrong args" - unless ($#ARGV == 1); - -openlog("vyatta-interface-rescan", "", LOG_DAEMON); - -interface_rescan(@ARGV); -exit 0; - diff --git a/scripts/vyatta_net_name b/scripts/vyatta_net_name deleted file mode 100755 index d61ac6a3..00000000 --- a/scripts/vyatta_net_name +++ /dev/null @@ -1,278 +0,0 @@ -#! /usr/bin/perl - -# This program is free software; you can redistribute it and/or modify -# it under the terms of the GNU General Public License version 2 as -# published by the Free Software Foundation. -# -# This program is distributed in the hope that it will be useful, but -# WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -# General Public License for more details. -# -# This code was originally developed by Vyatta, Inc. -# Portions created by Vyatta are Copyright (C) 2010 Vyatta, Inc. -# All Rights Reserved. - -use strict; -use lib "/opt/vyatta/share/perl5/"; -use XorpConfigParser; -use Vyatta::Config; -use Sys::Syslog qw(:standard :macros); -use Fcntl qw(:flock); - -my $BOOTFILE = "/opt/vyatta/etc/config/config.boot"; -my $VYATTACFG = "/opt/vyatta/config/active/interfaces"; - -my $UDEVDIR = "/run/udev/"; -my $VYATTAUDEV = $UDEVDIR . "vyatta"; -my $LOCKFILE = $UDEVDIR . ".vyatta-lock"; -my $UDEVLOG = $UDEVDIR . "log/"; -my $LOGFILE = $UDEVLOG . "vyatta-net-name.coldplug"; - -# Check if interface name is free to use -sub is_available { - my ($interfaces, $ifname) = @_; - - my $count = grep { $_ eq $ifname } values %$interfaces; - return ($count == 0); -} - -# Find next available interface name -sub find_available { - my ($interfaces, $ifprefix) = @_; - $ifprefix =~ s/\d+$//; - - for (my $id = 0; ; $id++) { - my $ifname = sprintf("%s%d", $ifprefix, $id); - - # is it in Vyatta config? - return $ifname if (is_available($interfaces, $ifname)); - } -} - -# Find the hardware id in the parsed config node for interface -sub get_hwid_from_children { - my $children = shift; - - foreach my $attr (@$children) { - next unless (($attr->{'name'} =~ /^hw-id ([0-9a-f:]+)/) || ($attr->{'name'} =~ /^hw-id "([0-9a-f:]+)"/)); - return $1; - } - - return; # not found -} - - -# Leave file for vyatta_interface_rescan -sub leave_rescan_hint { - my ($ifname, $hwaddr) = @_; - my $name = "$VYATTAUDEV/$ifname"; - - mkdir($VYATTAUDEV); - open (my $f, '>', $name) - or die "Can't create $name : $!"; - - print {$f} "$hwaddr\n"; - close $f; - return 1; -} - -# Use biosdevname program (ethernet only) -# to try and find name based on PCI slot and DMI info -sub biosdevname { - my $ifname = shift; - - # biosdevname works only on ethernet devices - return $ifname unless ($ifname =~ /^eth/); - - # Don't use biosdevname in Xen - return $ifname if ( -d "/proc/xen" ); - - # Let the interface name changes ordered by previous invocations of this - # script complete before we call biosdevname. If we don't, biosdevame - # may generate incorrect name. - sleep 1; - - my $biosname = `/sbin/biosdevname --policy all_ethN -i $ifname 2>/dev/null`; - chomp $biosname; - - # if biosdevname has no answer it outputs a nothing - return ($biosname eq '') ? $ifname : $biosname; -} - -# parse vyatta config.boot -# if file does not then running before off livecd then return empty hash -sub parse_config_boot { - my $interfaces = {}; - - if ( -f $BOOTFILE ) { - my $xcp = new XorpConfigParser(); - $xcp->parse($BOOTFILE); - - my $inode = $xcp->get_node(['interfaces']); - if ($inode) { - foreach my $child (@{$inode->{'children'}}) { - # is hwid defined in config? - my $hwid = get_hwid_from_children($child->{'children'}); - next unless $hwid; - - # split into type 'ethernet' and 'eth0' - my ($type, $intf) = ($child->{'name'} =~ /^(\w+) (\w+)/); - next unless defined($type); - next unless ($type eq 'ethernet') || ($type eq 'wireless'); - - $interfaces->{$hwid} = $intf; - } - } - } - - return $interfaces; -} - -sub logit { - my ($log, $msg) = @_; - my $now = localtime; - print $log "$now: $msg"; -} - -# Determine network name to use based on Vyatta config during boot -sub coldplug { - my ($ifname, $hwaddr, $predef_ifname) = @_; - - # at this time root directory is read-only so use log file instead - mkdir ($UDEVLOG); - open (my $log, '>>', $LOGFILE) - or die "Can't open $LOGFILE : $!"; - logit($log, "lookup $ifname $hwaddr\n"); - - # parse config file to produce map of existing hw-id values - my $interfaces = parse_config_boot(); - - # is name already in config file - my $newname = $interfaces->{$hwaddr}; - if ($newname) { - logit($log, "use hw-id $hwaddr in config mapped to '$newname'\n"); - return $newname; - } - - # add already assigned names - if (opendir(my $dir, $VYATTAUDEV)) { - foreach my $intf (grep { ! /^\./ } readdir($dir)) { - if (open (my $f, '<', "$VYATTAUDEV/$intf")) { - my $hwid = <$f>; - close $f; - chomp $hwid; - - $interfaces->{$hwid} = $intf; - } - } - } - - if ($predef_ifname) { - $newname = $predef_ifname; - logit($log, "predefined interface name for $ifname returned '$newname'\n"); - } - else { - $newname = biosdevname($ifname); - logit($log, "biosdevname for $ifname returned '$newname'\n"); - } - - unless (is_available($interfaces, $newname)) { - $newname = find_available($interfaces, $newname); - } - - logit($log, "new name for '$ifname' is '$newname'\n"); - close $log; - - leave_rescan_hint($newname, $hwaddr); - - return $newname; -} - -# Determine name from active config -sub hotplug { - my ($ifname, $hwaddr, $predef_ifname) = @_; - - # real filesystem available use real logging - openlog("vyatta-net-name", "", LOG_DAEMON); - - # Parse active config - my $cfg = new Vyatta::Config; - $cfg->setLevel('interfaces'); - - my $interfaces = {}; - foreach my $type ($cfg->listOrigNodes()) { - next unless ($type eq 'ethernet') || ($type eq 'wireless'); - foreach my $intf ($cfg->listOrigNodes($type)) { - my $hwid = $cfg->returnOrigValue("$type $intf hw-id"); - next unless $hwid; - # TBD this could be a hash with name and path? - $interfaces->{$hwid} = $intf; - } - } - - my $newname = $interfaces->{$hwaddr}; - if ($newname) { - syslog(LOG_DEBUG, "use hw-id %s in config mapped to '%s'", $hwaddr, $newname); - return $newname; - } - - if ($predef_ifname) { - $newname = $predef_ifname; - syslog(LOG_DEBUG, "predefined interface name for %s returned '%s'", $ifname, $newname); - } - else{ - $newname = biosdevname($ifname); - syslog(LOG_DEBUG, "biosdevname for %s returned '%s'", $ifname, $newname); - } - - unless (is_available($interfaces, $newname)) { - $newname = find_available($interfaces, $newname); - } - - syslog(LOG_INFO, "new name for '%s' is '%s'", $ifname, $newname); - - return $newname; -} - -my $LOCKF; -sub lock_file { - open ($LOCKF, '>', $LOCKFILE) - or die "Can't open $LOCKFILE : $!"; - - flock ($LOCKF, LOCK_EX) - or die "Can't lock $LOCKFILE : $!"; - -} - -sub unlock_file { - close $LOCKF; - $LOCKF = undef; -} - -# This script is called from udev with two or three arguments -# it outputs the new name (if any) to stdout -if ($#ARGV > 2 or $#ARGV < 1) { - die "vyatta_net_name called with wrong args:" . join(' ', @ARGV) . "\n"; -} - -my $ifname = $ARGV[0]; -my $hwaddr = $ARGV[1]; - -my $predef_ifname = ""; -if ($ARGV[2]){ - $predef_ifname = $ARGV[2]; -} - -lock_file; -my $newname; -if ( -d $VYATTACFG ) { - $newname = hotplug($ifname, $hwaddr, $predef_ifname); -} else { - $newname = coldplug($ifname, $hwaddr, $predef_ifname); -} -unlock_file; - -print "$newname\n" if ($newname); - -exit 0; |