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package Net::Autoconfig::Template; |
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25281
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use 5.008008; |
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300
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36
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use strict; |
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208
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use warnings; |
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43
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use base "Net::Autoconfig"; |
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1461
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38
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use Log::Log4perl qw(:levels); |
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43
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23363
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use Data::Dumper; |
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56288
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598
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10
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4430
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use version; our $VERSION = version->new('v1.1.3'); |
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9571
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################################################################################# |
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## Constants and Global Variables |
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################################################################################# |
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6
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6
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779
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use constant TRUE => 1; |
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391
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use constant FALSE => 0; |
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6
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362
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18
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35
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use constant DEFAULT_TIMEOUT => 10; |
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2632
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20
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6186
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use constant DEFAULT_CMD => { |
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cmd => "", |
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regex => "", |
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timeout => DEFAULT_TIMEOUT, |
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required => TRUE, |
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25
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6
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43
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}; |
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26
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27
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# directives = keywords that the parser looks for. The corresponding hash value |
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28
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# is the regex to use to look for corresponding data. |
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29
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my $file_directives = { |
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cmd => '.+', |
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'wait' => '\d+', |
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32
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regex => '.*', |
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default => '', |
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required => '', |
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35
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optional => '', |
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36
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device => '\w+', |
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37
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host => '\w+', |
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38
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hostname => '\w+', |
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39
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end => '', |
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40
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}; |
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43
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44
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################################################################################# |
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45
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# Methods |
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46
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################################################################################# |
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47
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48
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############################################################ |
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49
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# Public Methods |
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50
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############################################################ |
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51
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52
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######################################## |
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53
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# new |
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54
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# public method |
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55
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# |
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56
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# create a new Net::Autoconfig::Template |
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57
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# |
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58
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# Takes a filename |
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59
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# |
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60
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# Returns: |
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61
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# a Net::Autoconfig::Template object |
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62
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######################################## |
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63
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sub new { |
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64
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1
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1
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28
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my $invocant = shift; # calling class |
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65
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1
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3
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my $filename = shift; |
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66
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1
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33
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10
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my $class = ref($invocant) || $invocant; |
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67
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1
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4
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my $self = {}; |
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68
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1
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14
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my $log = Log::Log4perl->get_logger('Net::Autoconfig'); |
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69
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1
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48
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my $template_data; # a hash ref to the template data from the file |
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70
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71
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1
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6
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$log->debug("Creating new template object"); |
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72
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1
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361
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$template_data = _get_template_data($filename); |
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73
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0
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0
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$self = $template_data || {}; |
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74
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75
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0
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0
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if ($log->is_trace()) |
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76
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{ |
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77
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0
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$log->info(Dumper($template_data)); |
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78
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} |
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79
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80
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0
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return bless $self, $class; |
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81
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} |
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82
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83
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############################################################ |
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84
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# Private Methods |
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85
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############################################################ |
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86
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87
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######################################## |
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88
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# _get_template_data |
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89
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# private method |
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90
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# |
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91
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# Load the file and extract data from it. |
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92
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# Returns: |
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93
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# array context => a hash of the template data |
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94
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# scalar context => a hash ref of the template data |
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95
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# failure => undef |
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96
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######################################## |
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97
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sub _get_template_data { |
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98
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my $filename = shift; |
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99
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my $template_data = {}; |
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100
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my $log = Log::Log4perl->get_logger("Net::Autoconfig"); |
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101
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my $current_device; # the name of the current device |
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102
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my $set_defaults_flag; # set if we've seen a "default" directive |
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103
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my $skip_push_cmd; # flag indicates if we shouldn't push this to the list of commands |
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104
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105
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$filename or return; |
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106
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107
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eval |
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108
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{ |
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109
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open(TEMPLATE, "<$filename") || die "Could not open '$filename' for reading: $!"; |
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110
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}; |
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111
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if ($@) |
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112
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{ |
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113
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$log->warn("Loading Template - $@"); |
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114
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return; |
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115
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} |
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116
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117
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$template_data->{default} = DEFAULT_CMD; |
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118
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119
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while (my $line = ) |
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120
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{ |
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121
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my $cmds; # the command or the directives + commands |
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122
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$log->trace("Template line: $line"); |
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123
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124
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# Only skip the line if the first character is a "#". |
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125
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# Someone may want to send a " #..." cmd. |
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126
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# Probably not, but you never know. |
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127
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next if $line =~ /^#/; |
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128
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$cmds = _get_template_directives($line); |
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129
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130
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if ($cmds->{default}) |
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131
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{ |
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132
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$set_defaults_flag = TRUE; |
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133
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delete $cmds->{default}; |
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134
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$cmds->{'cmd'} = ''; |
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135
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} |
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136
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137
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138
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foreach my $hostname qw(device host hostname) |
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139
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{ |
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140
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if ($cmds->{$hostname}) |
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141
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{ |
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142
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$current_device = $cmds->{$hostname}; |
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143
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$template_data->{$current_device}->{hostname} = $current_device; |
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144
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delete $cmds->{$hostname}; |
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145
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$skip_push_cmd = TRUE; # If this exists, then don't push this onto the cmd list/stack |
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146
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$log->debug("Now using template named '$current_device'"); |
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147
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} |
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148
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} |
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149
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if ( $cmds->{end} ) |
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150
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{ |
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151
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undef $current_device; |
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152
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undef $set_defaults_flag; |
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153
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} |
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154
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155
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# Add the data to the right place |
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156
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if ( $set_defaults_flag and $current_device ) |
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157
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{ |
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158
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# Add the existing data to the default data. |
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159
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# New data overwrites old data. |
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160
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# Vivify the default data if it does not exist |
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161
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my $default_data; |
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162
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if (not $template_data->{$current_device}->{default}) |
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163
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{ |
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164
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if ($template_data->{default}) |
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165
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{ |
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166
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$template_data->{$current_device}->{default} = $template_data->{default}; |
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167
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} |
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168
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else |
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169
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{ |
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170
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$template_data->{$current_device}->{default} = DEFAULT_CMD; |
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171
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} |
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172
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} |
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173
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$default_data = $template_data->{$current_device}->{default}; |
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174
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$template_data->{$current_device}->{default} = { %$default_data, %$cmds }; |
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175
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$template_data->{$current_device}->{default}->{cmd} = ''; |
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176
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$log->trace("Device Default Data: " . Dumper($template_data->{$current_device}->{default})); |
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177
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} |
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178
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elsif ($set_defaults_flag and not $current_device) |
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179
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{ |
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180
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# Add the existing data to the global template default data. |
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181
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# New data overwrites old data. |
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182
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# Vivify the default data if it does not exist |
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183
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if (not exists $template_data->{default}) |
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184
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{ |
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185
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$template_data->{default} = DEFAULT_CMD; |
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186
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} |
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187
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$template_data->{default} = { %{$template_data->{default}}, %$cmds }; |
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188
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$template_data->{default}->{cmd} = ''; |
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189
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$log->trace("Template Default Data: " . Dumper($template_data->{default})); |
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190
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} |
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191
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elsif ($current_device) |
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192
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{ |
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193
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# Add the commands to the current device. |
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194
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# If there aren't any commands yet, make them |
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195
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if ($skip_push_cmd) |
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196
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{ |
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197
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undef $skip_push_cmd; |
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198
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next; |
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199
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} |
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200
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201
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my $cmds_array; # an array ref to the device commands |
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202
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if ( not defined $template_data->{$current_device}->{cmds}) |
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203
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{ |
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204
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$template_data->{$current_device}->{cmds} = []; |
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205
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} |
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206
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207
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# Create a ref to the cmds array to make it easier to read and write |
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208
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$cmds_array = $template_data->{$current_device}->{cmds}; |
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209
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210
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if (exists $template_data->{$current_device}->{default}) |
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211
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{ |
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212
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$cmds = { %{$template_data->{$current_device}->{default}}, %$cmds }; |
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213
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} |
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214
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else |
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215
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{ |
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216
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$cmds = { %{$template_data->{default}}, %$cmds }; |
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217
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} |
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218
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219
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# Check to see if someone wanted to copy another template |
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220
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# into this one. I.e. this is useful for entering the same |
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221
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# commands on different devices. E.g. c2960 and c2960g can |
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222
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# use the same commands. |
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223
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# |
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224
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# Procedure: 1) Copy the data into a new hash |
|
225
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# 2) Point the current device template to the new data |
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226
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# Notes: |
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227
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# a) This prevents a change in 1 affecting both of them. |
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228
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# b) This allows for extra commands to be added to the current device |
|
229
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# without affecting the other device. |
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230
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if ($cmds->{cmd} =~ /^/i) |
|
231
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{ |
|
232
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|
my $other_device = lc $1; # The other template to copy into this one |
|
233
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|
my %other_template = %{ $template_data->{$other_device} }; |
|
234
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|
235
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|
$template_data->{$current_device} = \%other_template; |
|
236
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|
237
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|
$log->trace("Duplicating template '$other_device' to '$current_device'"); |
|
238
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} |
|
239
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else |
|
240
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|
{ |
|
241
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|
|
$log->trace("Adding commands to $current_device: " . Dumper($cmds)); |
|
242
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|
|
push(@$cmds_array, $cmds); |
|
243
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} |
|
244
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} |
|
245
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else |
|
246
|
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|
{ |
|
247
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|
|
# Ignore blank space. But if it looks like someone tried to put a command |
|
248
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|
|
# outside of a device or default directive, then let them know about it. |
|
249
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|
|
if ($cmds->{cmd} or ((scalar keys %$cmds) > 1)) |
|
250
|
|
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|
|
{ |
|
251
|
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|
|
$log->warn("Unknown device or default object to add commands to."); |
|
252
|
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|
|
$log->warn(Dumper($cmds)); |
|
253
|
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|
} |
|
254
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|
} |
|
255
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|
256
|
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|
} |
|
257
|
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|
258
|
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|
|
if ($log->is_trace()) |
|
259
|
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|
|
{ |
|
260
|
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|
|
$log->info(Dumper($template_data)); |
|
261
|
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|
|
} |
|
262
|
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|
263
|
|
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|
|
|
close(TEMPLATE); |
|
264
|
|
|
|
|
|
|
|
|
265
|
|
|
|
|
|
|
# Clean-up the template (i.e. remove the default config entries) |
|
266
|
|
|
|
|
|
|
delete $template_data->{default}; |
|
267
|
|
|
|
|
|
|
foreach my $device (keys %$template_data) |
|
268
|
|
|
|
|
|
|
{ |
|
269
|
|
|
|
|
|
|
delete $template_data->{$device}->{default}; |
|
270
|
|
|
|
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|
|
} |
|
271
|
|
|
|
|
|
|
|
|
272
|
|
|
|
|
|
|
return wantarray ? %$template_data : $template_data; |
|
273
|
|
|
|
|
|
|
} |
|
274
|
|
|
|
|
|
|
|
|
275
|
|
|
|
|
|
|
######################################## |
|
276
|
|
|
|
|
|
|
# _get_template_directives |
|
277
|
|
|
|
|
|
|
# private method |
|
278
|
|
|
|
|
|
|
# |
|
279
|
|
|
|
|
|
|
# For a given string, extract the different |
|
280
|
|
|
|
|
|
|
# colon separated fields and return a hash |
|
281
|
|
|
|
|
|
|
# of the applicable directives |
|
282
|
|
|
|
|
|
|
# |
|
283
|
|
|
|
|
|
|
# Force all directives to lowercase to prevent |
|
284
|
|
|
|
|
|
|
# typos or having to remember capitilization. |
|
285
|
|
|
|
|
|
|
# |
|
286
|
|
|
|
|
|
|
# Preserve case on commands. |
|
287
|
|
|
|
|
|
|
# |
|
288
|
|
|
|
|
|
|
# Returns: |
|
289
|
|
|
|
|
|
|
# array context => hash of the commands |
|
290
|
|
|
|
|
|
|
# scalar context => hash ref of the commands |
|
291
|
|
|
|
|
|
|
# failure => undef |
|
292
|
|
|
|
|
|
|
######################################## |
|
293
|
|
|
|
|
|
|
sub _get_template_directives { |
|
294
|
|
|
|
|
|
|
my $line = shift; |
|
295
|
|
|
|
|
|
|
my $cmds = {}; # a hash ref of the current commands |
|
296
|
|
|
|
|
|
|
my $log = Log::Log4perl->get_logger("Net::Autoconfig"); |
|
297
|
|
|
|
|
|
|
|
|
298
|
|
|
|
|
|
|
chomp($line); |
|
299
|
|
|
|
|
|
|
|
|
300
|
|
|
|
|
|
|
if ($line =~ /^:.*:$/) |
|
301
|
|
|
|
|
|
|
{ |
|
302
|
|
|
|
|
|
|
# directives only |
|
303
|
|
|
|
|
|
|
my @line_directives; |
|
304
|
|
|
|
|
|
|
$line =~ s/^://; |
|
305
|
|
|
|
|
|
|
$line =~ s/:$//; |
|
306
|
|
|
|
|
|
|
$line =~ s/\\:/~!~/g; |
|
307
|
|
|
|
|
|
|
$line = lc $line; |
|
308
|
|
|
|
|
|
|
|
|
309
|
|
|
|
|
|
|
@line_directives = split(":", $line); |
|
310
|
|
|
|
|
|
|
|
|
311
|
|
|
|
|
|
|
foreach my $directive (@line_directives) |
|
312
|
|
|
|
|
|
|
{ |
|
313
|
|
|
|
|
|
|
&_add_directive($directive, $cmds); |
|
314
|
|
|
|
|
|
|
} |
|
315
|
|
|
|
|
|
|
} |
|
316
|
|
|
|
|
|
|
elsif ($line =~ /^:/) |
|
317
|
|
|
|
|
|
|
{ |
|
318
|
|
|
|
|
|
|
# directives followed by a command |
|
319
|
|
|
|
|
|
|
my @line_directives; |
|
320
|
|
|
|
|
|
|
my $param; |
|
321
|
|
|
|
|
|
|
$line =~ s/^://; |
|
322
|
|
|
|
|
|
|
$line =~ s/\\:/~!~/g; |
|
323
|
|
|
|
|
|
|
|
|
324
|
|
|
|
|
|
|
@line_directives = split(":", $line); |
|
325
|
|
|
|
|
|
|
|
|
326
|
|
|
|
|
|
|
for (my $elem_count = 0; $elem_count < scalar(@line_directives); $elem_count++) |
|
327
|
|
|
|
|
|
|
{ |
|
328
|
|
|
|
|
|
|
$log->trace("Directive $elem_count of " . scalar(@line_directives) |
|
329
|
|
|
|
|
|
|
. " = " . $line_directives[$elem_count]); |
|
330
|
|
|
|
|
|
|
|
|
331
|
|
|
|
|
|
|
# The last value of the array is a command. |
|
332
|
|
|
|
|
|
|
if ($elem_count == (scalar(@line_directives) - 1)) |
|
333
|
|
|
|
|
|
|
{ |
|
334
|
|
|
|
|
|
|
my $cmd; |
|
335
|
|
|
|
|
|
|
my $param; |
|
336
|
|
|
|
|
|
|
$cmd = "cmd"; |
|
337
|
|
|
|
|
|
|
$param = $line_directives[$elem_count]; |
|
338
|
|
|
|
|
|
|
$param =~ s/~!~/:/g; |
|
339
|
|
|
|
|
|
|
$param =~ s/^\s*//; |
|
340
|
|
|
|
|
|
|
$param =~ s/\s*$//; |
|
341
|
|
|
|
|
|
|
$cmds->{cmd} = $param; |
|
342
|
|
|
|
|
|
|
$log->trace("Added command: $param"); |
|
343
|
|
|
|
|
|
|
last; |
|
344
|
|
|
|
|
|
|
} |
|
345
|
|
|
|
|
|
|
else |
|
346
|
|
|
|
|
|
|
{ |
|
347
|
|
|
|
|
|
|
&_add_directive(lc $line_directives[$elem_count], $cmds); |
|
348
|
|
|
|
|
|
|
} |
|
349
|
|
|
|
|
|
|
} |
|
350
|
|
|
|
|
|
|
} |
|
351
|
|
|
|
|
|
|
else |
|
352
|
|
|
|
|
|
|
{ |
|
353
|
|
|
|
|
|
|
$line =~ s/^\s*//; |
|
354
|
|
|
|
|
|
|
$line =~ s/\s*$//; |
|
355
|
|
|
|
|
|
|
$cmds->{cmd} = $line; |
|
356
|
|
|
|
|
|
|
} |
|
357
|
|
|
|
|
|
|
|
|
358
|
|
|
|
|
|
|
return wantarray ? %$cmds : $cmds; |
|
359
|
|
|
|
|
|
|
} |
|
360
|
|
|
|
|
|
|
|
|
361
|
|
|
|
|
|
|
######################################## |
|
362
|
|
|
|
|
|
|
# _add_directive |
|
363
|
|
|
|
|
|
|
# private method |
|
364
|
|
|
|
|
|
|
# |
|
365
|
|
|
|
|
|
|
# For a given directive, add it to the speified |
|
366
|
|
|
|
|
|
|
# hash ref. If the directive is invalid, undef |
|
367
|
|
|
|
|
|
|
# If the directive is valid, return TRUE. |
|
368
|
|
|
|
|
|
|
# |
|
369
|
|
|
|
|
|
|
# The return value is only for error checking. The has |
|
370
|
|
|
|
|
|
|
# ref is modified directly. |
|
371
|
|
|
|
|
|
|
# |
|
372
|
|
|
|
|
|
|
# Returns: |
|
373
|
|
|
|
|
|
|
# valid directive => TRUE |
|
374
|
|
|
|
|
|
|
# invalid directive => undef |
|
375
|
|
|
|
|
|
|
######################################## |
|
376
|
|
|
|
|
|
|
sub _add_directive { |
|
377
|
|
|
|
|
|
|
my $directive = shift; |
|
378
|
|
|
|
|
|
|
my $hash = shift; |
|
379
|
|
|
|
|
|
|
my $log = Log::Log4perl->get_logger("Net::Autoconfig"); |
|
380
|
|
|
|
|
|
|
my $cmd; |
|
381
|
|
|
|
|
|
|
my $param; |
|
382
|
|
|
|
|
|
|
$directive =~ s/~!~/:/g; |
|
383
|
|
|
|
|
|
|
|
|
384
|
|
|
|
|
|
|
$log->trace("Directive = '$directive'"); |
|
385
|
|
|
|
|
|
|
$directive =~ /(\w+)\s*(.*)/; |
|
386
|
|
|
|
|
|
|
$cmd = $1; |
|
387
|
|
|
|
|
|
|
$2 and $param = $2; |
|
388
|
|
|
|
|
|
|
if ($param) |
|
389
|
|
|
|
|
|
|
{ |
|
390
|
|
|
|
|
|
|
$param =~ s/^\s*//; |
|
391
|
|
|
|
|
|
|
$param =~ s/\s*$//; |
|
392
|
|
|
|
|
|
|
} |
|
393
|
|
|
|
|
|
|
|
|
394
|
|
|
|
|
|
|
if (exists $file_directives->{$cmd}) |
|
395
|
|
|
|
|
|
|
{ |
|
396
|
|
|
|
|
|
|
my $regex = $file_directives->{$cmd}; |
|
397
|
|
|
|
|
|
|
if (not $regex) |
|
398
|
|
|
|
|
|
|
{ |
|
399
|
|
|
|
|
|
|
# no parameter expected |
|
400
|
|
|
|
|
|
|
# Special case for required/optional since it toggles a value |
|
401
|
|
|
|
|
|
|
if ($cmd =~ /required/i) |
|
402
|
|
|
|
|
|
|
{ |
|
403
|
|
|
|
|
|
|
$hash->{'required'} = TRUE; |
|
404
|
|
|
|
|
|
|
$log->trace("Setting command to required: ". TRUE); |
|
405
|
|
|
|
|
|
|
} |
|
406
|
|
|
|
|
|
|
elsif ($cmd =~ /optional/i) |
|
407
|
|
|
|
|
|
|
{ |
|
408
|
|
|
|
|
|
|
$hash->{'required'} = FALSE; |
|
409
|
|
|
|
|
|
|
$log->trace("Setting command to optional: ". FALSE); |
|
410
|
|
|
|
|
|
|
} |
|
411
|
|
|
|
|
|
|
else |
|
412
|
|
|
|
|
|
|
{ |
|
413
|
|
|
|
|
|
|
$hash->{$cmd} = TRUE; |
|
414
|
|
|
|
|
|
|
} |
|
415
|
|
|
|
|
|
|
return TRUE; |
|
416
|
|
|
|
|
|
|
} |
|
417
|
|
|
|
|
|
|
elsif (not $param) |
|
418
|
|
|
|
|
|
|
{ |
|
419
|
|
|
|
|
|
|
$log->warn("No parameter specified for command '$cmd'."); |
|
420
|
|
|
|
|
|
|
return; |
|
421
|
|
|
|
|
|
|
} |
|
422
|
|
|
|
|
|
|
elsif ($param =~ /$regex/) |
|
423
|
|
|
|
|
|
|
{ |
|
424
|
|
|
|
|
|
|
if ($cmd =~ /wait/i) |
|
425
|
|
|
|
|
|
|
{ |
|
426
|
|
|
|
|
|
|
$hash->{'cmd'} = 'wait'; |
|
427
|
|
|
|
|
|
|
$hash->{'timeout'} = $param; |
|
428
|
|
|
|
|
|
|
} |
|
429
|
|
|
|
|
|
|
else |
|
430
|
|
|
|
|
|
|
{ |
|
431
|
|
|
|
|
|
|
$hash->{$cmd} = $param; |
|
432
|
|
|
|
|
|
|
} |
|
433
|
|
|
|
|
|
|
$log->trace("Comand '$cmd' with param '$param'"); |
|
434
|
|
|
|
|
|
|
return TRUE; |
|
435
|
|
|
|
|
|
|
} |
|
436
|
|
|
|
|
|
|
else |
|
437
|
|
|
|
|
|
|
{ |
|
438
|
|
|
|
|
|
|
$param or $param = ""; |
|
439
|
|
|
|
|
|
|
$log->warn("Invalid parameter '$param' for command '$cmd'"); |
|
440
|
|
|
|
|
|
|
return; |
|
441
|
|
|
|
|
|
|
} |
|
442
|
|
|
|
|
|
|
} |
|
443
|
|
|
|
|
|
|
else |
|
444
|
|
|
|
|
|
|
{ |
|
445
|
|
|
|
|
|
|
$param or $param = ""; |
|
446
|
|
|
|
|
|
|
$log->warn("Unknown command: '$cmd' with parameter '$param'"); |
|
447
|
|
|
|
|
|
|
return; |
|
448
|
|
|
|
|
|
|
} |
|
449
|
|
|
|
|
|
|
return; |
|
450
|
|
|
|
|
|
|
} |
|
451
|
|
|
|
|
|
|
|
|
452
|
|
|
|
|
|
|
######################################## |
|
453
|
|
|
|
|
|
|
# _prefix_to_netmask |
|
454
|
|
|
|
|
|
|
# |
|
455
|
|
|
|
|
|
|
# Given a prefix, return the corresponding |
|
456
|
|
|
|
|
|
|
# netmask. |
|
457
|
|
|
|
|
|
|
# |
|
458
|
|
|
|
|
|
|
# Returns: |
|
459
|
|
|
|
|
|
|
# netmask upon success |
|
460
|
|
|
|
|
|
|
# undef upon failure |
|
461
|
|
|
|
|
|
|
######################################## |
|
462
|
|
|
|
|
|
|
sub _prefix_to_netmask { |
|
463
|
|
|
|
|
|
|
my $prefix = shift; |
|
464
|
|
|
|
|
|
|
my $prefix_octets; |
|
465
|
|
|
|
|
|
|
my $prefix_remainder; |
|
466
|
|
|
|
|
|
|
my @netmask; |
|
467
|
|
|
|
|
|
|
|
|
468
|
|
|
|
|
|
|
($prefix) or return; |
|
469
|
|
|
|
|
|
|
($prefix =~ /\/\d{1,2}$/) or return; |
|
470
|
|
|
|
|
|
|
|
|
471
|
|
|
|
|
|
|
$prefix =~ s/\///; |
|
472
|
|
|
|
|
|
|
|
|
473
|
|
|
|
|
|
|
$prefix_octets = int($prefix / 8); |
|
474
|
|
|
|
|
|
|
$prefix_remainder = ($prefix % 8); |
|
475
|
|
|
|
|
|
|
|
|
476
|
|
|
|
|
|
|
my $prefix_values = { |
|
477
|
|
|
|
|
|
|
0 => "0", |
|
478
|
|
|
|
|
|
|
1 => "128", |
|
479
|
|
|
|
|
|
|
2 => "192", |
|
480
|
|
|
|
|
|
|
3 => "224", |
|
481
|
|
|
|
|
|
|
4 => "240", |
|
482
|
|
|
|
|
|
|
5 => "248", |
|
483
|
|
|
|
|
|
|
6 => "252", |
|
484
|
|
|
|
|
|
|
7 => "254", |
|
485
|
|
|
|
|
|
|
8 => "255", |
|
486
|
|
|
|
|
|
|
}; |
|
487
|
|
|
|
|
|
|
|
|
488
|
|
|
|
|
|
|
foreach my $octet (1..4) |
|
489
|
|
|
|
|
|
|
{ |
|
490
|
|
|
|
|
|
|
if ($prefix_octets > 0) |
|
491
|
|
|
|
|
|
|
{ |
|
492
|
|
|
|
|
|
|
$prefix_octets--; |
|
493
|
|
|
|
|
|
|
push(@netmask, $prefix_values->{8}); |
|
494
|
|
|
|
|
|
|
} |
|
495
|
|
|
|
|
|
|
elsif ($prefix_remainder) |
|
496
|
|
|
|
|
|
|
{ |
|
497
|
|
|
|
|
|
|
push(@netmask, $prefix_values->{$prefix_remainder}); |
|
498
|
|
|
|
|
|
|
$prefix_remainder = 0; |
|
499
|
|
|
|
|
|
|
} |
|
500
|
|
|
|
|
|
|
else |
|
501
|
|
|
|
|
|
|
{ |
|
502
|
|
|
|
|
|
|
push(@netmask, $prefix_values->{0}); |
|
503
|
|
|
|
|
|
|
} |
|
504
|
|
|
|
|
|
|
} |
|
505
|
|
|
|
|
|
|
return wantarray ? @netmask : join(".", @netmask); |
|
506
|
|
|
|
|
|
|
} |
|
507
|
|
|
|
|
|
|
|
|
508
|
|
|
|
|
|
|
|
|
509
|
|
|
|
|
|
|
######################################## |
|
510
|
|
|
|
|
|
|
# _netmask_to_prefix |
|
511
|
|
|
|
|
|
|
# |
|
512
|
|
|
|
|
|
|
# Given a netmask, return the corresponding |
|
513
|
|
|
|
|
|
|
# prefix "/\d{1,2}" |
|
514
|
|
|
|
|
|
|
# |
|
515
|
|
|
|
|
|
|
# Returns: |
|
516
|
|
|
|
|
|
|
# prefix upon success |
|
517
|
|
|
|
|
|
|
# undef upon failure |
|
518
|
|
|
|
|
|
|
######################################## |
|
519
|
|
|
|
|
|
|
sub _netmask_to_prefix { |
|
520
|
|
|
|
|
|
|
my $netmask = shift; |
|
521
|
|
|
|
|
|
|
my @netmask; # the octets of the netmask |
|
522
|
|
|
|
|
|
|
my $prefix = 0; # the prefix form of the netmask |
|
523
|
|
|
|
|
|
|
my $log = Log::Log4perl->get_logger('Net::Autoconfig'); |
|
524
|
|
|
|
|
|
|
|
|
525
|
|
|
|
|
|
|
my %netmask_values = { |
|
526
|
|
|
|
|
|
|
255 => "8", |
|
527
|
|
|
|
|
|
|
254 => "7", |
|
528
|
|
|
|
|
|
|
252 => "6", |
|
529
|
|
|
|
|
|
|
248 => "5", |
|
530
|
|
|
|
|
|
|
240 => "4", |
|
531
|
|
|
|
|
|
|
224 => "3", |
|
532
|
|
|
|
|
|
|
192 => "2", |
|
533
|
|
|
|
|
|
|
128 => "1", |
|
534
|
|
|
|
|
|
|
0 => "0", |
|
535
|
|
|
|
|
|
|
}; |
|
536
|
|
|
|
|
|
|
|
|
537
|
|
|
|
|
|
|
if (! $netmask) |
|
538
|
|
|
|
|
|
|
{ |
|
539
|
|
|
|
|
|
|
$log->info("No netmask was specified."); |
|
540
|
|
|
|
|
|
|
return; |
|
541
|
|
|
|
|
|
|
} |
|
542
|
|
|
|
|
|
|
|
|
543
|
|
|
|
|
|
|
@netmask = split(/\./, $netmask); |
|
544
|
|
|
|
|
|
|
|
|
545
|
|
|
|
|
|
|
if ( @netmask != 4) |
|
546
|
|
|
|
|
|
|
{ |
|
547
|
|
|
|
|
|
|
$log->info("Invalid netmask. '" . $netmask . "'"); |
|
548
|
|
|
|
|
|
|
return; |
|
549
|
|
|
|
|
|
|
} |
|
550
|
|
|
|
|
|
|
|
|
551
|
|
|
|
|
|
|
foreach my $octet (@netmask) |
|
552
|
|
|
|
|
|
|
{ |
|
553
|
|
|
|
|
|
|
($octet > 255) and $log->info("Netmask octect > 255"); |
|
554
|
|
|
|
|
|
|
($octet < 0) and $log->info("Netmask octect < 0"); |
|
555
|
|
|
|
|
|
|
|
|
556
|
|
|
|
|
|
|
$prefix += $netmask_values{$octet}; |
|
557
|
|
|
|
|
|
|
} |
|
558
|
|
|
|
|
|
|
return $prefix; |
|
559
|
|
|
|
|
|
|
} |
|
560
|
|
|
|
|
|
|
|
|
561
|
|
|
|
|
|
|
# Modules must return true. |
|
562
|
|
|
|
|
|
|
TRUE; |
|
563
|
|
|
|
|
|
|
|
|
564
|
|
|
|
|
|
|
|
|
565
|
|
|
|
|
|
|
__END__ |