File: TCP.pm

package info (click to toggle)
inetsim 1.2.7%2Bdfsg.1-1
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 1,592 kB
  • sloc: perl: 13,006; sh: 265; ansic: 12; makefile: 10
file content (143 lines) | stat: -rw-r--r-- 4,569 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
# -*- perl -*-
#
# INetSim::Daytime::TCP - A fake TCP daytime server
#
# RFC 867 - Daytime Protocol
#
# (c)2007-2009 Matthias Eckert, Thomas Hungenberg
#
# Version 0.47   (2009-10-28)
#
# For history/changelog see bottom of this file.
#
#############################################################

package INetSim::Daytime::TCP;

use strict;
use warnings;
use base qw(INetSim::Daytime);



sub configure_hook {
    my $self = shift;

    $self->{server}->{host}   = &INetSim::Config::getConfigParameter("Default_BindAddress"); # bind to address
    $self->{server}->{port}   = &INetSim::Config::getConfigParameter("Daytime_TCP_BindPort");  # bind to port
    $self->{server}->{proto}  = 'tcp';                                      # TCP protocol
    $self->{server}->{user}   = &INetSim::Config::getConfigParameter("Default_RunAsUser");       # user to run as
    $self->{server}->{group}  = &INetSim::Config::getConfigParameter("Default_RunAsGroup");    # group to run as
    $self->{server}->{setsid} = 0;                                          # do not daemonize
    $self->{server}->{no_client_stdout} = 1;                                # do not attach client to STDOUT
    $self->{server}->{log_level} = 0;                                       # do not log anything

    $self->{servicename} = &INetSim::Config::getConfigParameter("Daytime_TCP_ServiceName");
    $self->{max_childs} = &INetSim::Config::getConfigParameter("Default_MaxChilds");
    $self->{faketime_max} = &INetSim::Config::getConfigParameter("Faketime_Max");
}



sub pre_loop_hook {
    my $self = shift;

    $0 = "inetsim_$self->{servicename}";
    &INetSim::Log::MainLog("started (PID $$)", $self->{servicename});
}



sub pre_server_close_hook {
    my $self = shift;

    &INetSim::Log::MainLog("stopped (PID $$)", $self->{servicename});
}



sub fatal_hook {
    my $self = shift;

    &INetSim::Log::MainLog("failed!", $self->{servicename});
    exit 0;
}



sub process_request {
    my $self = shift;
    my $client = $self->{server}->{client};
    my $rhost = $self->{server}->{peeraddr};
    my $rport = $self->{server}->{peerport};
    my $stat_success = 0;

    &INetSim::Log::SubLog("[$rhost:$rport] connect", $self->{servicename}, $$);
    if ($self->{server}->{numchilds} >= $self->{max_childs}) {
        print $client "Maximum number of connections ($self->{max_childs}) exceeded.\n";
        &INetSim::Log::SubLog("[$rhost:$rport] Connection refused - maximum number of connections ($self->{max_childs}) exceeded.", $self->{servicename}, $$);
    }
    else {
        my $seconds = &INetSim::FakeTime::get_faketime();
        if ($seconds < 0) {
            $seconds = 0;
            &INetSim::Log::SubLog("info: Faketime less than epoche, set to epoche", $self->{servicename}, $$);
        }
        elsif ($seconds > $self->{faketime_max}) {
            $seconds = $self->{faketime_max};
            &INetSim::Log::SubLog("info: Faketime overflow, set to maximum time", $self->{servicename}, $$);
        }
        my $cur_time = localtime($seconds);
        print $client "$cur_time\r\n";
        &INetSim::Log::SubLog("[$rhost:$rport] send: " . $cur_time, $self->{servicename}, $$);
        $stat_success = 1;
    }
    &INetSim::Log::SubLog("[$rhost:$rport] disconnect", $self->{servicename}, $$);
    &INetSim::Log::SubLog("[$rhost:$rport] stat: $stat_success", $self->{servicename}, $$);
}



1;
#############################################################
#
# History:
#
# Version 0.47  (2009-10-28) me
# - improved some code parts
#
# Version 0.46  (2008-08-27) me
# - added logging of process id
#
# Version 0.45  (2007-12-31) th
# - change process name
#
# Version 0.44  (2007-04-25) th
# - use getConfigParameter
#
# Version 0.43  (2007-04-21) me
# - added logging of status for use with &INetSim::Report::GenReport()
#
# Version 0.42  (2007-04-10) th
# - get fake time via &INetSim::FakeTime::get_faketime()
#   instead of accessing $INetSim::Config::FakeTimeDelta
#
# Version 0.41  (2007-04-05) th
# - changed check for MaxChilds, BindAddress, RunAsUser and
#   RunAsGroup
#
# Version 0.4   (2007-03-26) th
# - split TCP and UDP servers to separate modules
# - rewrote module to use INetSim::GenericServer
# - added logging of refused connections
#
# Version 0.32  (2007-03-18) th
# - added check if faketime is less than epoche or bigger than
#   maximum time
#
# Version 0.31  (2007-03-16) th
# - added configuration option $INetSim::Config::FakeTimeDelta
#
# Version 0.3   (2007-03-09) me
#
#############################################################