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Re: Who is testing the new Nmap IPv6 support
From: Vlatko Kosturjak <kost () linux hr>
Date: Wed, 15 Jun 2011 13:23:07 +0200

On Mon, Jun 13, 2011 at 09:53:33AM -0700, David Fifield wrote:
On Mon, Jun 13, 2011 at 12:09:31PM +0200, Luis MartinGarcia. wrote:
This is my fault. I recently removed some piece of code from osscan2.cc
that appeared to be dead. Although I tested it three times, obviously I
was wrong and the code is actually run in certain situations. Revision
23917 should fix the problem. Vlatko, could you please test if it does?
Vlatko, can you get a stack trace from the assertion failure? I asked
Luis to remove the relevant code and I too am surprised that it is being


Initiating Service scan at 12:55
Scanning 296 services on 16 hosts
Service scan Timing: About 23.99% done; ETC: 12:57 (0:01:45 remaining)
Service scan Timing: About 58.78% done; ETC: 12:59 (0:01:26 remaining)
Service scan Timing: About 81.08% done; ETC: 12:58 (0:00:35 remaining)
Completed Service scan at 12:59, 260.09s elapsed (296 services on 16 hosts)
Initiating OS detection (try #1) against 16 hosts

Breakpoint 1, HostOsScan::sendT1_7Probe (this=0x88c3020, hss=0xd442010, 
    probeNo=0) at osscan2.cc:1396
1396        fatal("Wrong probe number (%d) passed to %s()", probeNo, __func__);
(gdb) bt
#0  HostOsScan::sendT1_7Probe (this=0x88c3020, hss=0xd442010, probeNo=0)
    at osscan2.cc:1396
#1  0x0807df7b in HostOsScan::sendNextProbe (this=0x88c3020, 
    hss=0xd442010) at osscan2.cc:1266
#2  0x0808250a in doTUITests (Targets=<value optimized out>)
    at osscan2.cc:3471
#3  os_scan_2 (Targets=<value optimized out>) at osscan2.cc:3770
#4  0x080831b9 in os_scan2 (Targets=...) at osscan2.cc:3811
#5  0x08068a83 in nmap_main (argc=15, argv=0x882d560) at nmap.cc:1896
#6  0x08062d34 in main (argc=15, argv=0xbffffb94) at main.cc:204

Interesting variables (some of them you have already in trace):
(gdb) p probeNo
$1 = 0
(gdb) p port_base
$2 = 61769
(gdb) p tcpPortBase
$3 = 61756
(gdb) p hss
$4 = (HostOsScanStats *) 0xd442010

Hope it helps,
Vlatko Kosturjak - KoSt
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