Re: nping/libpcap build error

[David Fifield <david () bamsoftware com>]

On Tue, Feb 14, 2012 at 10:14:02AM -0500, Patrick Donnelly wrote:
> On Mon, Feb 13, 2012 at 10:00 PM, David Fifield <david () bamsoftware com> wrote:
> > On Mon, Feb 13, 2012 at 09:43:13PM -0500, Patrick Donnelly wrote:
> > > Hi list,
> > >
> > > I'm experiencing a strange error building nmap in the trunk:
> > >
> > > gcc -o ncat -g -O2 -Wall -L../libpcap  ncat_main.o ncat_connect.o
> > > ncat_core.o ncat_posix.o ncat_listen.o ncat_proxy.o ncat_ssl.o
> > > base64.o http.o util.o sys_wrap.o http_digest.o
> > > ../nsock/src/libnsock.a ../nbase/libnbase.a -lssl -lcrypto -lpcap
> > > -lssl -lcrypto -ldl
> > > ../libpcap/libpcap.a(pcap-linux.o): In function `nl80211_init':
> > > nmap/svn/nmap/libpcap/./pcap-linux.c:515: undefined reference to
> > > `nl_handle_alloc'
> > > nmap/svn/nmap/libpcap/./pcap-linux.c:522: undefined reference to `genl_connect'
> > > nmap/svn/nmap/libpcap/./pcap-linux.c:528: undefined reference to
> > > `genl_ctrl_alloc_cache'
> > > nmap/svn/nmap/libpcap/./pcap-linux.c:535: undefined reference to
> > > `genl_ctrl_search_by_name'
> > > nmap/svn/nmap/libpcap/./pcap-linux.c:547: undefined reference to
> > > `nl_handle_destroy'
> > > nmap/svn/nmap/libpcap/./pcap-linux.c:545: undefined reference to `nl_cache_free'
> > > ../libpcap/libpcap.a(pcap-linux.o): In function `nl80211_cleanup':
> > > nmap/svn/nmap/libpcap/./pcap-linux.c:554: undefined reference to
> > > `genl_family_put'
> > > nmap/svn/nmap/libpcap/./pcap-linux.c:555: undefined reference to `nl_cache_free'
> > > ../libpcap/libpcap.a(pcap-linux.o): In function `del_mon_if':
> > > nmap/svn/nmap/libpcap/./pcap-linux.c:653: undefined reference to `nlmsg_alloc'
> > > nmap/svn/nmap/libpcap/./pcap-linux.c:660: undefined reference to
> > > `genl_family_get_id'
> > > nmap/svn/nmap/libpcap/./pcap-linux.c:660: undefined reference to `genlmsg_put'
> > > nmap/svn/nmap/libpcap/./pcap-linux.c:662: undefined reference to `nla_put'
> > > nmap/svn/nmap/libpcap/./pcap-linux.c:664: undefined reference to
> > > `nl_send_auto_complete'
> > > nmap/svn/nmap/libpcap/./pcap-linux.c:685: undefined reference to
> > > `nl_wait_for_ack'
> > > nmap/svn/nmap/libpcap/./pcap-linux.c:692: undefined reference to `nlmsg_free'
> > > nmap/svn/nmap/libpcap/./pcap-linux.c:702: undefined reference to `nlmsg_free'
> > > nmap/svn/nmap/libpcap/./pcap-linux.c:710: undefined reference to `nlmsg_free'
> > > nmap/svn/nmap/libpcap/./pcap-linux.c:717: undefined reference to `nlmsg_free'
> > > ../libpcap/libpcap.a(pcap-linux.o): In function `add_mon_if':
> > > nmap/svn/nmap/libpcap/./pcap-linux.c:571: undefined reference to `nlmsg_alloc'
> > > nmap/svn/nmap/libpcap/./pcap-linux.c:578: undefined reference to
> > > `genl_family_get_id'
> > > nmap/svn/nmap/libpcap/./pcap-linux.c:578: undefined reference to `genlmsg_put'
> > > nmap/svn/nmap/libpcap/./pcap-linux.c:580: undefined reference to `nla_put'
> > > nmap/svn/nmap/libpcap/./pcap-linux.c:581: undefined reference to `nla_put'
> > > nmap/svn/nmap/libpcap/./pcap-linux.c:582: undefined reference to `nla_put'
> > > nmap/svn/nmap/libpcap/./pcap-linux.c:584: undefined reference to
> > > `nl_send_auto_complete'
> > > nmap/svn/nmap/libpcap/./pcap-linux.c:605: undefined reference to
> > > `nl_wait_for_ack'
> > > nmap/svn/nmap/libpcap/./pcap-linux.c:612: undefined reference to `nlmsg_free'
> > > nmap/svn/nmap/libpcap/./pcap-linux.c:622: undefined reference to `nlmsg_free'
> > > nmap/svn/nmap/libpcap/./pcap-linux.c:630: undefined reference to `nlmsg_free'
> > > nmap/svn/nmap/libpcap/./pcap-linux.c:637: undefined reference to `nlmsg_free'
> > > ../libpcap/libpcap.a(pcap-linux.o): In function `nl80211_cleanup':
> > > nmap/svn/nmap/libpcap/./pcap-linux.c:556: undefined reference to
> > > `nl_handle_destroy'
> > > collect2: ld returned 1 exit status
> > > make[1]: *** [ncat] Error 1
> > > make[1]: Leaving directory `nmap/svn/nmap/ncat'
> > > make: *** [ncat_build] Error 2
> > >
> > > Anyone know how to fix this? I'm building on Archlinux x86_64 using
> > > kernel 3.2.1.
> >
> > It's a longstanding bug. You have to make it link with -lnl. Here's a
> > workaround:
> >        http://seclists.org/nmap-dev/2011/q3/448
> > (svn merge -c -23163)
>
> After running this command (on the latest version of the trunk):

Please update and give this another try after r28203. Do a "make
distclean" and then reconfigure.

David Fifield
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