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Old 09-05-2007, 02:11 PM   #1
skubik
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Problems compiling netfilter modules from 2.6.21.5 kernel

I'm attempting to compile the netfilter modules for the 2.6.21.5 kernel so that I can utilize iptables on my system. It currently runs 2.6.21.5 just fine.

I went into 'make menuconfig' and selected just about everything under the netfilter menus to be compiled as modules (probably overkill), but when I go to compile the modules, using 'make modules', I get this output:

Code:
  CHK     include/linux/version.h
  CHK     include/linux/utsrelease.h
  Building modules, stage 2.
  MODPOST 252 modules
WARNING: "textsearch_destroy" [net/netfilter/xt_string.ko] undefined!
WARNING: "textsearch_prepare" [net/netfilter/xt_string.ko] undefined!
WARNING: "nf_proto_csum_replace4" [net/netfilter/xt_TCPMSS.ko] undefined!
WARNING: "skb_make_writable" [net/netfilter/xt_TCPMSS.ko] undefined!
WARNING: "nf_log_packet" [net/netfilter/xt_NFLOG.ko] undefined!
WARNING: "ip_ct_attach" [net/netfilter/nf_conntrack.ko] undefined!
WARNING: "nf_log_packet" [net/netfilter/nf_conntrack.ko] undefined!
WARNING: "nf_register_sysctl_table" [net/netfilter/nf_conntrack.ko] undefined!
WARNING: "nf_unregister_sysctl_table" [net/netfilter/nf_conntrack.ko] undefined!
WARNING: "nf_net_netfilter_sysctl_path" [net/netfilter/nf_conntrack.ko] undefined!
WARNING: "nf_net_ipv4_netfilter_sysctl_path" [net/netfilter/nf_conntrack.ko] undefined!
WARNING: "nf_afinfo" [net/netfilter/nf_conntrack.ko] undefined!
WARNING: "nf_hook_slow" [net/ipv6/sit.ko] undefined!
WARNING: "nf_hooks" [net/ipv6/sit.ko] undefined!
WARNING: "nf_getsockopt" [net/ipv6/ipv6.ko] undefined!
WARNING: "nf_ct_attach" [net/ipv6/ipv6.ko] undefined!
WARNING: "nf_hooks" [net/ipv6/ipv6.ko] undefined!
WARNING: "nf_hook_slow" [net/ipv6/ipv6.ko] undefined!
WARNING: "nf_register_afinfo" [net/ipv6/ipv6.ko] undefined!
WARNING: "nf_setsockopt" [net/ipv6/ipv6.ko] undefined!
WARNING: "nf_unregister_afinfo" [net/ipv6/ipv6.ko] undefined!
WARNING: "nf_hook_slow" [net/ipv6/ip6_tunnel.ko] undefined!
WARNING: "nf_hooks" [net/ipv6/ip6_tunnel.ko] undefined!
WARNING: "nf_ip_checksum" [net/ipv4/netfilter/nf_nat.ko] undefined!
WARNING: "nf_proto_csum_replace4" [net/ipv4/netfilter/nf_nat.ko] undefined!
WARNING: "skb_make_writable" [net/ipv4/netfilter/nf_nat.ko] undefined!
WARNING: "nf_ip_checksum" [net/ipv4/netfilter/nf_conntrack_ipv4.ko] undefined!
WARNING: "nf_log_packet" [net/ipv4/netfilter/nf_conntrack_ipv4.ko] undefined!
WARNING: "nf_unregister_hooks" [net/ipv4/netfilter/nf_conntrack_ipv4.ko] undefined!
WARNING: "nf_unregister_sockopt" [net/ipv4/netfilter/nf_conntrack_ipv4.ko] undefined!
WARNING: "nf_net_ipv4_netfilter_sysctl_path" [net/ipv4/netfilter/nf_conntrack_ipv4.ko] undefined!
WARNING: "nf_register_hooks" [net/ipv4/netfilter/nf_conntrack_ipv4.ko] undefined!
WARNING: "nf_register_sockopt" [net/ipv4/netfilter/nf_conntrack_ipv4.ko] undefined!
WARNING: "ip_xfrm_me_harder" [net/ipv4/netfilter/iptable_nat.ko] undefined!
WARNING: "ip_nat_decode_session" [net/ipv4/netfilter/iptable_nat.ko] undefined!
WARNING: "ip_route_me_harder" [net/ipv4/netfilter/iptable_nat.ko] undefined!
WARNING: "nf_unregister_hooks" [net/ipv4/netfilter/iptable_nat.ko] undefined!
WARNING: "nf_register_hooks" [net/ipv4/netfilter/iptable_nat.ko] undefined!
WARNING: "nf_unregister_hooks" [net/ipv4/netfilter/iptable_filter.ko] undefined!
WARNING: "nf_register_hooks" [net/ipv4/netfilter/iptable_filter.ko] undefined!
WARNING: "nf_log_unregister" [net/ipv4/netfilter/ipt_ULOG.ko] undefined!
WARNING: "nf_log_register" [net/ipv4/netfilter/ipt_ULOG.ko] undefined!
WARNING: "nf_hook_slow" [net/ipv4/netfilter/ipt_REJECT.ko] undefined!
WARNING: "nf_hooks" [net/ipv4/netfilter/ipt_REJECT.ko] undefined!
WARNING: "nf_ct_attach" [net/ipv4/netfilter/ipt_REJECT.ko] undefined!
WARNING: "ip_route_me_harder" [net/ipv4/netfilter/ipt_REJECT.ko] undefined!
WARNING: "nf_ip_checksum" [net/ipv4/netfilter/ipt_REJECT.ko] undefined!
WARNING: "nf_log_unregister" [net/ipv4/netfilter/ipt_LOG.ko] undefined!
WARNING: "nf_log_register" [net/ipv4/netfilter/ipt_LOG.ko] undefined!
WARNING: "nf_unregister_sockopt" [net/ipv4/netfilter/ip_tables.ko] undefined!
WARNING: "nf_register_sockopt" [net/ipv4/netfilter/ip_tables.ko] undefined!
WARNING: "nf_unregister_hooks" [net/ipv4/netfilter/arptable_filter.ko] undefined!
WARNING: "nf_register_hooks" [net/ipv4/netfilter/arptable_filter.ko] undefined!
WARNING: "nf_unregister_sockopt" [net/ipv4/netfilter/arp_tables.ko] undefined!
WARNING: "nf_register_sockopt" [net/ipv4/netfilter/arp_tables.ko] undefined!
WARNING: "nf_hook_slow" [net/ipv4/ipip.ko] undefined!
WARNING: "nf_hooks" [net/ipv4/ipip.ko] undefined!
WARNING: "textsearch_unregister" [lib/ts_kmp.ko] undefined!
WARNING: "textsearch_register" [lib/ts_kmp.ko] undefined!
WARNING: "textsearch_unregister" [lib/ts_fsm.ko] undefined!
WARNING: "textsearch_register" [lib/ts_fsm.ko] undefined!
WARNING: "textsearch_unregister" [lib/ts_bm.ko] undefined!
WARNING: "textsearch_register" [lib/ts_bm.ko] undefined!
make[1]: *** [__modpost] Error 1
make: *** [modules] Error 2
Any ideas what is causing this or where I should begin to look?

Thanks,

- skubik.
 
Old 09-05-2007, 02:24 PM   #2
Okie
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Location: Oklahoma
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when building a 2.6.xx kernel such as the one you want to build you don't use make modules...

make menuconf (set your preferences)

make

make modules_install


no make modules are needed anymore as they are part of make which takes care of all of the following commands - make dep, make clean, make bzIamge and make modules
 
Old 09-05-2007, 04:11 PM   #3
skubik
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Registered: May 2003
Location: A dark corner in Canada
Distribution: Slackware64 15.0/current
Posts: 152

Original Poster
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I tried your suggestion- and for the most-part it seemed to work. That is, there were no compile-time errors and the modules actually seem to be in the kernel module repository under /lib/modules/2.6.21.5/...

However, when I go to insert the module, I get this:

> modprobe ip_tables
FATAL: Error inserting ip_tables (/lib/modules/2.6.21.5/kernel/net/ipv4/netfilter/ip_tables.ko): Unknown symbol in module, or unknown parameter (see dmesg)

So I look at dmesg, and find:
ip_tables: Unknown symbol nf_register_sockopt
ip_tables: Unknown symbol nf_unregister_sockopt

Something still isn't right here. Any ideas?

Thanks,

- skubik.
 
Old 09-05-2007, 04:18 PM   #4
Okie
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Location: Oklahoma
Posts: 1,154

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you probably need to copy over System.map & .config and /usr/src/linux/arch/i386/boot/bzImage to /boot then update /etc/lilo.conf & run /sbin/lilo to reflect the new kernel...

in other words i suggest if you are going to rebuild kernel modules it will only work if you install the whole kernel...
 
Old 09-05-2007, 04:33 PM   #5
skubik
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Makes sense I suppose. I will give it a shot. Thanks for your help- hopefully this will work and I won't continue to pester.
 
Old 09-06-2007, 01:32 PM   #6
skubik
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Just a followup post for the thread- I did rebuild the entire kernel and install it, and now iptables works just fine.

I did also download and build the newest iptables toolkit (v.1.3.8) against this kernel, and everything seems to be working just fine.
 
Old 09-06-2007, 03:01 PM   #7
Okie
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good to hear you resolved your problem...
 
  


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