1 |
#!/usr/bin/perl -w |
2 |
# |
3 |
# try to connect to a particular port on a bunch of hosts using |
4 |
# socks proxy to connect through. For use with "mon". |
5 |
# |
6 |
# Options are |
7 |
# -p <port-num> |
8 |
# -t <connect-timeout-in-seconds> (default 15) |
9 |
# -s <string to send upon connecting to provoke some output> |
10 |
# -e <Perl regexp to expect in response> |
11 |
# -q <string to send before closing after parsing response> |
12 |
# -d <string to use as line delimiter for regexp matching> |
13 |
# -S <socks server to connect to> |
14 |
# -P <socks server port> (1080 by default) |
15 |
# -v verbose (dump lot of debugging inforations) |
16 |
|
17 |
# without /-s/-e/-q/, just checks that the socket can be opened |
18 |
# and closed. |
19 |
|
20 |
# cheap transformations done on send/quit/delim strings - \r and \n are |
21 |
# converted to CR and LF. \\ is not supported - no escape possible. |
22 |
|
23 |
# sample usage: |
24 |
# |
25 |
# smtp: socksch.monitor -p 25 -e '^220\b' -q 'QUIT\r\n' |
26 |
# web: socksch.monitor -p 80 -s 'GET / HTTP/1.0\r\n\r\n' -e '^HTTP.*200 OK' |
27 |
|
28 |
|
29 |
# |
30 |
# Jim Trocki, trockij@transmeta.com |
31 |
# updated August 2000 by Ed Ravin <eravin@panix.com> for send/expect/quit |
32 |
# updated July 2002 by Dobrica Pavlinusic <dpavlin@rot13.org> to use |
33 |
# socks 4|5 servers |
34 |
# |
35 |
# Copyright (C) 1998, Jim Trocki |
36 |
# |
37 |
# This program is free software; you can redistribute it and/or modify |
38 |
# it under the terms of the GNU General Public License as published by |
39 |
# the Free Software Foundation; either version 2 of the License, or |
40 |
# (at your option) any later version. |
41 |
# |
42 |
# This program is distributed in the hope that it will be useful, |
43 |
# but WITHOUT ANY WARRANTY; without even the implied warranty of |
44 |
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
45 |
# GNU General Public License for more details. |
46 |
# |
47 |
# You should have received a copy of the GNU General Public License |
48 |
# along with this program; if not, write to the Free Software |
49 |
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
50 |
# |
51 |
use Getopt::Std; |
52 |
use Socket; |
53 |
|
54 |
use strict; |
55 |
use Net::SOCKS; |
56 |
|
57 |
my %opt; |
58 |
getopts ("d:p:t:s:e:q:S:P:v", \%opt); |
59 |
my $USAGE= "Usage: socksch.monitor -p port [-t timeout] [-s sendstr] [-e regexp] [-q quitstr] [-d line-delim] [-S socks server] [-P socks port] [-v]\n"; |
60 |
|
61 |
my $PORT = $opt{"p"} || undef; |
62 |
my $TIMEOUT = $opt{"t"} || 15; |
63 |
|
64 |
my $SEND= $opt{"s"} || undef; |
65 |
my $EXPECT= $opt{"e"} || undef; |
66 |
my $QUITSTR=$opt{"q"} || undef; |
67 |
my $DELIM= $opt{"d"} || "\n"; |
68 |
my $SOCKS_SERVER = $opt{"S"} || "socks.pliva.hr"; |
69 |
my $SOCKS_PORT = $opt{"P"} || 1080; |
70 |
my $verbose = $opt{"v"} || 0; |
71 |
|
72 |
if ($DELIM) |
73 |
{ |
74 |
$DELIM=~ s/\\n/\n/g; |
75 |
$DELIM=~ s/\\r/\r/g; |
76 |
} |
77 |
|
78 |
my @failures = (); |
79 |
my @detail = (); |
80 |
|
81 |
my $ALARM = 0; |
82 |
|
83 |
sub checkbuf # buffer, regexp |
84 |
{ |
85 |
my ($buffer, $regexp)= @_; |
86 |
|
87 |
return $buffer =~ /$regexp/ if ($DELIM eq ''); |
88 |
|
89 |
my @lines= split($DELIM, $buffer); |
90 |
|
91 |
foreach my $line (@lines) |
92 |
{ |
93 |
if ($line =~ /$regexp/) |
94 |
{ |
95 |
return 1; |
96 |
} |
97 |
} |
98 |
return 0; |
99 |
} |
100 |
|
101 |
die $USAGE unless (@ARGV > 0); |
102 |
die "$0: missing port number\n" unless defined $PORT; |
103 |
|
104 |
foreach my $host (@ARGV) { |
105 |
|
106 |
push @detail, "(debug) testing $host"; |
107 |
|
108 |
my $sock = new Net::SOCKS(socks_addr => $SOCKS_SERVER, |
109 |
socks_port => $SOCKS_PORT, |
110 |
#user_id => 'the_user', |
111 |
#user_password => 'the_password', |
112 |
#force_nonanonymous => 1, |
113 |
protocol_version => 5); |
114 |
|
115 |
if (!defined $sock) { |
116 |
die "(local err) could not create socks socket: $!\n"; |
117 |
} elsif ($verbose) { |
118 |
push @detail, "(debug) connected to socks server $SOCKS_SERVER:$SOCKS_PORT"; |
119 |
} |
120 |
|
121 |
my $r; |
122 |
|
123 |
eval { |
124 |
local $SIG{"ALRM"} = sub { die "alarm\n" }; |
125 |
|
126 |
alarm $TIMEOUT; |
127 |
|
128 |
$r = $sock->connect(peer_addr => $host, peer_port => $PORT); |
129 |
|
130 |
push @detail, "(debug) connect status: ".Net::SOCKS::status_message($sock->param('status_num')) if ($verbose); |
131 |
|
132 |
if ($sock->param('status_num') != SOCKS_OKAY) { |
133 |
die "(local err) could not connect to peer $host port $PORT: $!\n"; |
134 |
} |
135 |
|
136 |
alarm 0; |
137 |
}; |
138 |
|
139 |
if ($@) { |
140 |
push @failures, $host; |
141 |
|
142 |
if ($@ eq "alarm\n") { |
143 |
push @detail, "$host timeout on connect"; |
144 |
} else { |
145 |
push @detail, "$host interrupted syscall on connect: $!"; |
146 |
} |
147 |
|
148 |
$sock->close(); |
149 |
next; |
150 |
} |
151 |
|
152 |
if (!defined $r) { |
153 |
push @failures, $host; |
154 |
push @detail, "$host: could not connect: $!"; |
155 |
$sock->close(); |
156 |
next; |
157 |
} |
158 |
|
159 |
if (defined($SEND)) { |
160 |
my $rc= undef; |
161 |
|
162 |
$SEND=~ s/\\n/\n/g; |
163 |
$SEND=~ s/\\r/\r/g; |
164 |
eval { |
165 |
local $SIG{"ALRM"} = sub { die "alarm\n" }; |
166 |
|
167 |
alarm $TIMEOUT; |
168 |
push @detail, "(debug) sending '$SEND'" if ($verbose); |
169 |
print $r $SEND; |
170 |
alarm 0; |
171 |
}; |
172 |
if ($@) { |
173 |
push @failures, $host; |
174 |
|
175 |
if ($@ eq "alarm\n") { |
176 |
push @detail, "$host timeout on write"; |
177 |
} else { |
178 |
push @detail, "$host interrupted syscall on write: $!"; |
179 |
} |
180 |
} |
181 |
} |
182 |
|
183 |
if (defined($EXPECT)) { |
184 |
# read and match |
185 |
|
186 |
my $alldata= ""; |
187 |
|
188 |
eval { |
189 |
local $SIG{"ALRM"} = sub { die "alarm\n" }; |
190 |
|
191 |
alarm $TIMEOUT; |
192 |
|
193 |
push @detail, "(debug) expecting '$EXPECT'" if ($verbose); |
194 |
while (<$r>) { |
195 |
$alldata .= $_; |
196 |
last if (checkbuf($alldata, $EXPECT)); |
197 |
} |
198 |
alarm 0; |
199 |
}; |
200 |
|
201 |
if ($@) { |
202 |
push @failures, $host; |
203 |
|
204 |
if ($@ eq "alarm\n") { |
205 |
push @detail, "$host timeout on read"; |
206 |
} else { |
207 |
push @detail, "$host interrupted syscall on read: $!"; |
208 |
} |
209 |
} |
210 |
|
211 |
if (! checkbuf($alldata, $EXPECT)) { |
212 |
push @failures, $host; |
213 |
push @detail, "$host: did not recv expected response"; |
214 |
$sock->close(); |
215 |
next; |
216 |
} |
217 |
} |
218 |
|
219 |
if (defined($QUITSTR)) { |
220 |
my $rc= undef; |
221 |
|
222 |
$QUITSTR=~ s/\\n/\n/g; |
223 |
$QUITSTR=~ s/\\r/\r/g; |
224 |
|
225 |
eval { |
226 |
local $SIG{"ALRM"} = sub { die "alarm\n" }; |
227 |
|
228 |
alarm $TIMEOUT; |
229 |
|
230 |
push @detail, "(debug) sending '$QUITSTR'" if ($verbose); |
231 |
print $r $QUITSTR; |
232 |
alarm 0; |
233 |
}; |
234 |
if ($@) { |
235 |
push @failures, $host; |
236 |
|
237 |
if ($@ eq "alarm\n") { |
238 |
push @detail, "$host timeout writing quitstr"; |
239 |
} else { |
240 |
push @detail, "$host interrupted syscall writing quitstr: $!"; |
241 |
} |
242 |
} |
243 |
} |
244 |
|
245 |
if (! $sock->close()) { |
246 |
push @failures, $host; |
247 |
push @detail, "$host: could not close socket: $!"; |
248 |
next; |
249 |
} |
250 |
} |
251 |
|
252 |
if (@failures > 0 || $verbose) { |
253 |
print "@failures\n"; |
254 |
print "\n", join ("\n", @detail), "\n"; |
255 |
} |
256 |
|
257 |
if (@failures == 0) { |
258 |
exit 0; |
259 |
} |
260 |
|
261 |
exit 1; |