Your message dated Sun, 18 Jul 2021 21:03:43 +0000
with message-id <[email protected]>
and subject line Bug#991258: fixed in netdiscover 0.7-4
has caused the Debian Bug report #991258,
regarding netdiscover: No results when scanning with CIDR /24 if built with
libpcap >= 1.10
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
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--
991258: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=991258
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: netdiscover
Version: 0.7-3
Severity: important
Tags: upstream patch
X-Debbugs-Cc: [email protected]
Control: fixed -1 upstream/0.8
This bug was originally sent to Netdscover Project[1] by a user. It is already
fixed in upstream[2].
[1] https://github.com/netdiscover-scanner/netdiscover/issues/9
[2]
https://github.com/netdiscover-scanner/netdiscover/commit/2de0187c8b6aad3ca5393d96fbc5b00c453c3d23
Basically, if built with libpcap >= 1.10, netdiscover works fine with CIDRs /8
and /16, but shows no results with /24. To reproduce:
# netdiscover -P -r 192.168.0.0/24
The following patch, sent by Enrico Schmitz, applied by upstream and tested in
several conditions, solves the bug.
diff --git a/src/ifaces.h b/src/ifaces.h
index 68ce8a5..3fbdaf4 100644
--- a/src/ifaces.h
+++ b/src/ifaces.h
@@ -45,7 +45,7 @@ extern "C"
typedef uint16_t u_int16_t;
typedef uint8_t u_int8_t;
#else
- #define PCAP_TOUT 0
+ #define PCAP_TOUT 512
#endif
An explanation about this patch is here[3]. Summary: "Older versions of libpcap
ignored to_ms on Linux. The current version captures packets until a buffer a
filled or the specified timeout elapses. The value 0 disables that timeout, so
libpcap will only start delivering packets once the buffer is filled".
[3]
https://github.com/netdiscover-scanner/netdiscover/issues/9#issuecomment-862340024
Regards,
Eriberto
--- End Message ---
--- Begin Message ---
Source: netdiscover
Source-Version: 0.7-4
Done: Joao Eriberto Mota Filho <[email protected]>
We believe that the bug you reported is fixed in the latest version of
netdiscover, which is due to be installed in the Debian FTP archive.
A summary of the changes between this version and the previous one is
attached.
Thank you for reporting the bug, which will now be closed. If you
have further comments please address them to [email protected],
and the maintainer will reopen the bug report if appropriate.
Debian distribution maintenance software
pp.
Joao Eriberto Mota Filho <[email protected]> (supplier of updated netdiscover
package)
(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing [email protected])
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512
Format: 1.8
Date: Sun, 18 Jul 2021 17:23:16 -0300
Source: netdiscover
Architecture: source
Version: 0.7-4
Distribution: unstable
Urgency: medium
Maintainer: Joao Eriberto Mota Filho <[email protected]>
Changed-By: Joao Eriberto Mota Filho <[email protected]>
Closes: 991258
Changes:
netdiscover (0.7-4) unstable; urgency=medium
.
* debian/patches/030_fix_cidr24.patch: created to fix no results with CIDR
/24
and libpcap >= 1.10. Thanks to Enrico Schmitz. (Closes: #991258)
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