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# $Id$ |
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# |
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# network::write Brik |
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# |
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package Metabrik::Network::Write; |
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use strict; |
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use warnings; |
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use base qw(Metabrik); |
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1260
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sub brik_properties { |
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return { |
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revision => '$Revision$', |
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tags => [ qw(unstable ethernet ip raw socket) ], |
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author => 'GomoR ', |
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license => 'http://opensource.org/licenses/BSD-3-Clause', |
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attributes => { |
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device => [ qw(device) ], |
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target => [ qw(ipv4_address|ipv6_address) ], |
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family => [ qw(ipv4|ipv6) ], |
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protocol => [ qw(tcp|udp) ], |
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layer => [ qw(2|3|4) ], |
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_fd => [ qw(INTERNAL) ], |
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}, |
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commands => { |
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open => [ qw(layer|OPTIONAL arg2|OPTIONAL arg3|OPTIONAL) ], |
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send => [ qw($data) ], |
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lsend => [ qw($data) ], |
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nsend => [ qw($data) ], |
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tsend => [ qw($data) ], |
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fnsend_reply => [ qw($frame target_address|OPTIONAL) ], |
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close => [ ], |
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}, |
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require_modules => { |
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'Net::Write::Layer' => [ ], |
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'Net::Write::Layer2' => [ ], |
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'Net::Write::Layer3' => [ ], |
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'Net::Write::Layer4' => [ ], |
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'Metabrik::Network::Read' => [ ], |
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}, |
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}; |
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} |
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sub brik_use_properties { |
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my $self = shift; |
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return { |
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attributes_default => { |
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0
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50
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layer => 2, |
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device => defined($self->global) && $self->global->device || 'eth0', |
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family => defined($self->global) && $self->global->family || 'ipv4', |
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protocol => defined($self->global) && $self->global->protocol || 'tcp', |
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}, |
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}; |
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} |
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58
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sub open { |
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my $self = shift; |
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my ($layer, $arg2, $arg3) = @_; |
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62
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0
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0
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$self->brik_help_run_must_be_root('open') or return; |
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64
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$layer ||= $self->layer; |
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66
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0
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my $family = $self->family eq 'ipv6' |
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? Net::Write::Layer::NW_AF_INET6() |
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: Net::Write::Layer::NW_AF_INET(); |
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70
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my $protocol = $self->protocol eq 'udp' |
71
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? Net::Write::Layer::NW_IPPROTO_UDP() |
72
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: Net::Write::Layer::NW_IPPROTO_TCP(); |
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74
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my $fd; |
75
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0
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0
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if ($self->layer == 2) { |
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0
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76
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$arg2 ||= $self->device; |
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78
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0
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0
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$fd = Net::Write::Layer2->new( |
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dev => $arg2 |
80
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) or return $self->log->error("open: layer2: error"); |
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82
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0
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$self->log->verbose("open: layer2: success. Will use device [$arg2]"); |
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} |
84
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elsif ($self->layer == 3) { |
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$arg2 ||= $self->target; |
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0
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0
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if (! defined($arg2)) { |
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0
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return $self->log->error($self->brik_help_set('target')); |
88
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} |
89
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90
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0
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0
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$fd = Net::Write::Layer3->new( |
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dst => $arg2, |
92
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protocol => Net::Write::Layer::NW_IPPROTO_RAW(), |
93
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family => $family, |
94
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) or return $self->log->error("open: layer3: error"); |
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96
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0
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$self->log->verbose("open: layer3: success"); |
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} |
98
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elsif ($self->layer == 4) { |
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$arg2 ||= $self->target; |
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0
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if (! defined($self->target)) { |
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0
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return $self->log->error($self->brik_help_set('target')); |
102
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} |
103
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104
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0
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0
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$fd = Net::Write::Layer4->new( |
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dst => $arg2, |
106
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protocol => $protocol, |
107
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family => $family, |
108
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) or return $self->log->error("open: layer4: error"); |
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110
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0
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$self->log->verbose("open: layer4: success"); |
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} |
112
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113
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0
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0
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$fd->open or return $self->log->error("open: error"); |
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115
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0
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$self->_fd($fd); |
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117
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0
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return $fd; |
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} |
119
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120
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sub send { |
121
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0
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0
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0
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my $self = shift; |
122
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0
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my ($data) = @_; |
123
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124
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0
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my $fd = $self->_fd; |
125
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0
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0
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$self->brik_help_run_undef_arg('open', $fd) or return; |
126
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0
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0
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$self->brik_help_run_undef_arg('send', $data) or return; |
127
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128
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0
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$fd->send($data); |
129
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130
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0
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return 1; |
131
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} |
132
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133
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sub close { |
134
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0
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0
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0
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my $self = shift; |
135
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136
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0
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my $fd = $self->_fd; |
137
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0
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0
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if (! defined($fd)) { |
138
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0
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return 1; |
139
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} |
140
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141
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0
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$fd->close; |
142
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0
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$self->_fd(undef); |
143
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144
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0
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return 1; |
145
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} |
146
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147
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sub lsend { |
148
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0
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0
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0
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my $self = shift; |
149
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0
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my ($data) = @_; |
150
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151
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0
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0
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$self->brik_help_run_undef_arg('lsend', $data) or return; |
152
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153
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# Save state |
154
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0
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my $layer = $self->layer; |
155
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0
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$self->layer(2); |
156
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157
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0
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0
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$self->open or return; |
158
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0
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0
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$self->send($data) or return; |
159
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0
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$self->close; |
160
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161
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# Restore state |
162
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0
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$self->layer($layer); |
163
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164
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0
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return length($data); |
165
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} |
166
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167
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sub nsend { |
168
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0
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0
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0
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my $self = shift; |
169
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0
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my ($data) = @_; |
170
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171
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0
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0
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$self->brik_help_run_undef_arg('nsend', $data) or return; |
172
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173
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# Save state |
174
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0
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my $layer = $self->layer; |
175
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0
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$self->layer(3); |
176
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177
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0
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0
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$self->open or return; |
178
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0
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0
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$self->send($data) or return; |
179
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0
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$self->close; |
180
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181
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# Restore state |
182
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0
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$self->layer($layer); |
183
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184
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0
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return length($data); |
185
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} |
186
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187
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sub fnsend_reply { |
188
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0
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0
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0
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my $self = shift; |
189
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0
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my ($frame, $target) = @_; |
190
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191
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0
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0
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$self->brik_help_run_undef_arg('fnsend_reply', $frame) or return; |
192
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0
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0
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$self->brik_help_run_invalid_arg('fnsend_reply', $frame, 'Net::Frame::Simple') or return; |
193
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194
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# Try to find the target by myself |
195
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0
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0
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if (! defined($target)) { |
196
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0
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0
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my $ip = $frame->ref->{'IPv4'} || $frame->ref->{'IPv6'}; |
197
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0
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0
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if (! defined($ip)) { |
198
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0
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return $self->log->error($self->brik_help_run('fnsend_reply')); |
199
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} |
200
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0
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$target = $ip->dst; |
201
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} |
202
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203
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0
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0
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my $nr = Metabrik::Network::Read->new_from_brik_init($self) or return; |
204
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0
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$nr->layer(2); |
205
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0
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$nr->device($self->device); |
206
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0
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$nr->rtimeout($self->global->rtimeout); |
207
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208
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0
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$self->log->verbose("fnsend_reply: using device [".$nr->device."]"); |
209
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210
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0
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0
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my $in = $nr->open or return; |
211
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212
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# Save state |
213
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0
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my $saved_layer = $self->layer; |
214
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0
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my $saved_target = $self->target; |
215
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0
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$self->layer(3); |
216
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0
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$self->target($target); |
217
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218
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0
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0
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my $out = $self->open or return; |
219
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220
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0
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0
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|
|
|
|
$frame->send($out) or return; |
221
|
|
|
|
|
|
|
|
222
|
0
|
|
|
|
|
|
my $reply; |
223
|
0
|
|
|
|
|
|
until ($in->timeout) { |
224
|
0
|
0
|
|
|
|
|
if ($reply = $frame->recv($in)) { |
225
|
0
|
|
|
|
|
|
last; |
226
|
|
|
|
|
|
|
} |
227
|
|
|
|
|
|
|
} |
228
|
|
|
|
|
|
|
|
229
|
0
|
|
|
|
|
|
$self->close; |
230
|
0
|
|
|
|
|
|
$nr->close; |
231
|
|
|
|
|
|
|
|
232
|
|
|
|
|
|
|
# Restore state |
233
|
0
|
|
|
|
|
|
$self->layer($saved_layer); |
234
|
0
|
|
|
|
|
|
$self->target($saved_target); |
235
|
|
|
|
|
|
|
|
236
|
0
|
|
|
|
|
|
return $reply; |
237
|
|
|
|
|
|
|
} |
238
|
|
|
|
|
|
|
|
239
|
|
|
|
|
|
|
sub tsend { |
240
|
0
|
|
|
0
|
0
|
|
my $self = shift; |
241
|
|
|
|
|
|
|
} |
242
|
|
|
|
|
|
|
|
243
|
|
|
|
|
|
|
1; |
244
|
|
|
|
|
|
|
|
245
|
|
|
|
|
|
|
__END__ |