On Sat, 6 Nov 2010, Mr Dash Four wrote:
> I am trying to install ipset on the above kernel version after successfully
> recompiling and installing my iptables v1.3.7.
>
> When I unzip ipset-4.4.tar.bz2, then copy both
> kernel/include/linux/netfilter_ipv4/ip_set.h AND
> kernel/include/linux/netfilter_ipv4/ipt_set.h to include/linux/netfilter_ipv4
> (the latter was also needed for building iptables as well, though the
> installation page did not mention that as a requirement) and then ran make
> I've got the following error:
>
> =================
> CC [M] /root/ipset-4.4/kernel/ipt_set.o
> /root/ipset-4.4/kernel/ipt_set.c: In function `checkentry':
> /root/ipset-4.4/kernel/ipt_set.c:167: warning: implicit declaration of
> function `IPT_ALIGN'
> /root/ipset-4.4/kernel/ipt_set.c: In function `ipt_ipset_init':
> /root/ipset-4.4/kernel/ipt_set.c:244: warning: passing arg 1 of
> `xt_register_match' makes integer from pointer without a cast
> /root/ipset-4.4/kernel/ipt_set.c:244: error: too few arguments to function
> `xt_register_match'
> /root/ipset-4.4/kernel/ipt_set.c: In function `ipt_ipset_fini':
> /root/ipset-4.4/kernel/ipt_set.c:249: warning: passing arg 1 of
> `xt_unregister_match' makes integer from pointer without a cast
> /root/ipset-4.4/kernel/ipt_set.c:249: error: too few arguments to function
> `xt_unregister_match'
> make[2]: *** [/root/ipset-4.4/kernel/ipt_set.o] Error 1
> make[1]: *** [_module_/root/ipset-4.4/kernel] Error 2
> =================
>
> Looking at the source of ipt_set.c I think this is what causes the error:
>
> =================
> #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,16)
> #include <linux/netfilter_ipv4/ip_tables.h>
> #define xt_register_match ipt_register_match
> #define xt_unregister_match ipt_unregister_match
> #define xt_match ipt_match
> #else
> #include <linux/netfilter/x_tables.h>
> #endif
> #include <linux/netfilter_ipv4/ip_set.h>
> #include <linux/netfilter_ipv4/ipt_set.h>
> .....
> static int __init ipt_ipset_init(void)
> {
> return xt_register_match(&set_match);
> }
>
> static void __exit ipt_ipset_fini(void)
> {
> xt_unregister_match(&set_match);
> }
> =================
>
> I looked at both x_tables.h and ip_tables.h files and they do contain the
> following:
>
> x_tables.h
> ~~~~~~~~~~
> extern int xt_register_match(int af, struct xt_match *target);
> extern void xt_unregister_match(int af, struct xt_match *target);
>
> ip_tables.h
> ~~~~~~~~~~~
> #define ipt_register_match(mtch) xt_register_match(AF_INET, mtch)
> #define ipt_unregister_match(mtch) xt_unregister_match(AF_INET, mtch)
>
> According to the above as my kernel version appears to be > 2,6,16 x_tables.h
> include triggers and it defines the 2 functions, but requiring two parameters
> instead of the one defined in ipt_set.c! I tried to change the version to
> KERNEL_VERSION(2,6,17) to force include of netfilter_ipv4/ip_tables.h - that
> passes, though for this file I get the following warning:
The problem is that the API changed somewhere along the 2.6.16.x tree and
it cannot be expressed by
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,16)
...
So it is not possible to provide an ipset-4.x source tree which could
support 2.6.16, 2.6.16.x and 2.6.17 as well.
> =================
> CC [M] /root/ipset-4.4/kernel/ipt_set.o
> /root/ipset-4.4/kernel/ipt_set.c: In function `ipt_ipset_init':
> /root/ipset-4.4/kernel/ipt_set.c:244: warning: implicit declaration of
> function `ipt_register_match'
> /root/ipset-4.4/kernel/ipt_set.c: In function `ipt_ipset_fini':
> /root/ipset-4.4/kernel/ipt_set.c:249: warning: implicit declaration of
> function `ipt_unregister_match'
> ================
No, you cannot solve the compatibility that way. Please write back the
kernel version check to KERNEL_VERSION(2,6,16) and manually modify all
xt_register_match|target, xt_unregister_match|target calls in ipt_set.c
and ipt_SET.c speficying two arguments, the first one filled out as
AF_INET, eg:
static int __init ipt_ipset_init(void)
{
return xt_register_match(AF_INET, &set_match);
}
> and then get a similar error for ipt_SET.c:
>
> =================
> CC [M] /root/ipset-4.4/kernel/ipt_SET.o
> /root/ipset-4.4/kernel/ipt_SET.c: In function `checkentry':
> /root/ipset-4.4/kernel/ipt_SET.c:157: warning: implicit declaration of
> function `IPT_ALIGN'
> /root/ipset-4.4/kernel/ipt_SET.c: In function `ipt_SET_init':
> /root/ipset-4.4/kernel/ipt_SET.c:247: warning: passing arg 1 of
> `xt_register_target' makes integer from pointer without a cast
> /root/ipset-4.4/kernel/ipt_SET.c:247: error: too few arguments to function
> `xt_register_target'
> /root/ipset-4.4/kernel/ipt_SET.c: In function `ipt_SET_fini':
> /root/ipset-4.4/kernel/ipt_SET.c:252: warning: passing arg 1 of
> `xt_unregister_target' makes integer from pointer without a cast
> /root/ipset-4.4/kernel/ipt_SET.c:252: error: too few arguments to function
> `xt_unregister_target'
> make[2]: *** [/root/ipset-4.4/kernel/ipt_SET.o] Error 1
> make[1]: *** [_module_/root/ipset-4.4/kernel] Error 2
> =================
>
> Trying the same 'trick' for ipt_SET.c won't work though, I am getting this:
>
> =================
> CC [M] /root/ipset-4.4/kernel/ipt_SET.o
> /root/ipset-4.4/kernel/ipt_SET.c:24:1: warning: "XT_CONTINUE" redefined
> In file included from include/linux/netfilter_ipv4/ip_tables.h:28,
> from /root/ipset-4.4/kernel/ipt_SET.c:20:
> include/linux/netfilter/x_tables.h:17:1: warning: this is the location of the
> previous definition
> /root/ipset-4.4/kernel/ipt_SET.c: In function `target':
> /root/ipset-4.4/kernel/ipt_SET.c:94: error: `XT_CONTINUE' undeclared (first
> use in this function)
> /root/ipset-4.4/kernel/ipt_SET.c:94: error: (Each undeclared identifier is
> reported only once
> /root/ipset-4.4/kernel/ipt_SET.c:94: error: for each function it appears in.)
> /root/ipset-4.4/kernel/ipt_SET.c: In function `ipt_SET_init':
> /root/ipset-4.4/kernel/ipt_SET.c:247: warning: implicit declaration of
> function `ipt_register_target'
> /root/ipset-4.4/kernel/ipt_SET.c: In function `ipt_SET_fini':
> /root/ipset-4.4/kernel/ipt_SET.c:252: warning: implicit declaration of
> function `ipt_unregister_target'
> make[2]: *** [/root/ipset-4.4/kernel/ipt_SET.o] Error 1
> make[1]: *** [_module_/root/ipset-4.4/kernel] Error 2
> make[1]: Leaving directory
> `/usr/src/expresscore/distrib/build/sources/kernel-runtime/linux-2.6.16.60'
> make: *** [modules] Error 2
> =================
>
> XT_CONTINUE is defined as IPT_CONTINUE, which, in ip_tables.h is defined as
> ... XT_CONTINUE in ip_tables.h! After a bit more digging I found that
> netfilter/x_tables.h defines XT_CONTINUE as 0xFFFFFFFF, so I tried to replace
> this in ipt_SET.c, but when tried make again I've got this:
>
> =================
> CC [M] /root/ipset-4.4/kernel/ipt_set.o
> /root/ipset-4.4/kernel/ipt_set.c: In function `ipt_ipset_init':
> /root/ipset-4.4/kernel/ipt_set.c:244: warning: implicit declaration of
> function `ipt_register_match'
> /root/ipset-4.4/kernel/ipt_set.c: In function `ipt_ipset_fini':
> /root/ipset-4.4/kernel/ipt_set.c:249: warning: implicit declaration of
> function `ipt_unregister_match'
> CC [M] /root/ipset-4.4/kernel/ipt_SET.o
> /root/ipset-4.4/kernel/ipt_SET.c: In function `ipt_SET_init':
> /root/ipset-4.4/kernel/ipt_SET.c:247: warning: implicit declaration of
> function `ipt_register_target'
> /root/ipset-4.4/kernel/ipt_SET.c: In function `ipt_SET_fini':
> /root/ipset-4.4/kernel/ipt_SET.c:252: warning: implicit declaration of
> function `ipt_unregister_target'
>
> Building modules, stage 2.
> MODPOST
> *** Warning: "ipt_unregister_match" [/root/ipset-4.4/kernel/ipt_set.ko]
> undefined!
> *** Warning: "ipt_register_match" [/root/ipset-4.4/kernel/ipt_set.ko]
> undefined!
> *** Warning: "ipt_unregister_target" [/root/ipset-4.4/kernel/ipt_SET.ko]
> undefined!
> *** Warning: "ipt_register_target" [/root/ipset-4.4/kernel/ipt_SET.ko]
> undefined!
> =================
>
> Where I am now stuck and would appreciate a bit of help.
>
> My iptables 1.3.7 compiled and installed successfully (from what I can gather
> it added two additional files in /usr/lib/iptables - libipt_set.so and
> libipt_SET.so), so I don't think this is iptables problem.
>
>
> > ipset-4.4 has just been released with one important fix and some small
> > corrections:
> >
> > Kernel part changes:
> > - The ipporthash, ipportiphash and ipportnethash set types did not
> > work with mixed "src" and "dst" direction parameters of the "set" and
> > "SET" iptables match and target (reported by Dash Four)
> > - Errorneous semaphore handling in error path fixed (reported by Jan
> > Engelhardt, bugzilla id 668)
Best regards,
Jozsef
-
E-mail : kadlec@xxxxxxxxxxxxxxxxx, kadlec@xxxxxxxxxxxx
PGP key : http://www.kfki.hu/~kadlec/pgp_public_key.txt
Address : KFKI Research Institute for Particle and Nuclear Physics
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