Bug 510222

Summary:	net-analyzer/netsniff-ng-0.5.8_rc3: crashes at startup because libpcap links against libnl-1
Product:	Gentoo Linux	Reporter:	Benjamin Block <mageta>
Component:	Current packages	Assignee:	Michael Weber (RETIRED) <xmw>
Status:	RESOLVED FIXED
Severity:	normal	CC:	netmon
Priority:	Normal
Version:	unspecified
Hardware:	AMD64
OS:	Linux
Whiteboard:
Package list:		Runtime testing required:	---
Bug Depends on:	469176
Bug Blocks:
Attachments:	emerge --info

Description Benjamin Block 2014-05-13 11:26:04 UTC

Netsniff-ng links among others against libnl-3, libnl-genl-3 and libpcap. But the current stable libpcap links against libnl-1 (the ebuild is slotted). So, upon starting netsniff-ng, it loads both version of libnl which in turn will cause a segfault because of the several abi-breaks between these versions.

As soon as you unmerge libnl-1 and force libpcap to link only against libnl-3 (tested with 1.5.3 of libpcap with useflag netlink enabled) this will go away.

You may want to depend on dev-libs/libnl:3 alone with slot 1.1 blocked.

Foolishly I don't have the core and strace-file left on my machine. But I can reproduce these if you want.

Reproducible: Always

Steps to Reproduce:
1. Merge current stable libpcap with netlink-useflag enabled (it should depend on dev-libs/libnl:1.1)
2. Merge net-analyzer/netsniff-ng-0.5.8_rc3
3. Run netsniff-ng
Actual Results:  
Segfault

Expected Results:  
No Segfault :)

Comment 1 Benjamin Block 2014-05-13 11:28:02 UTC

Created attachment 376814 [details]
emerge --info

Comment 2 Michael Weber (RETIRED) gentoo-dev

2014-09-01 15:55:34 UTC

Does this still persist on net-libs/libpcap-1.6* ?