On Monday 2008-07-14 22:36, Kevin Sookocheff wrote:
>OK. That makes sense for what I'm seeing.
>
>What I have is the following struct:
>
>struct ipt_CSUM_info {
> u_int32_t address;
> u_int8_t addressCount;
> u_int16_t port;
> u_int8_t portCount;
> u_int8_t interval;
> u_int8_t maxFailures;
>};
There's padding involved between the 8/16.
>and I register the following target in lib*.c:
>
>static struct iptables_target CSUM = {
> .next = NULL,
This line not needed.
> .name = "CSUM",
> .version = NETFILTER_VERSION,
NETFILTER_VERSION?
> .size = IPT_ALIGN(sizeof(struct ipt_CSUM_info)),
> .userspacesize = IPT_ALIGN(sizeof(struct ipt_CSUM_info)),
> .help = &help,
> .parse = &parse,
> .final_check = &final_check,
> .print = &print,
> .save = &save,
> .extra_opts = opts
>};
Seems like a really old module.
>void _init(void)
>{
> register_target(&CSUM);
>}
>
>Then I try and register the target in the kernel C file which is where
>it seems to fail:
>
>static struct ipt_target ipt_CSUM = {
> .name = "CSUM",
> .target = ipt_csum_target,
> .checkentry = ipt_csum_checkentry,
>};
Well well, where is .targetsize? No wonder it prints 0 != 12 ;-)
>static int __init init(void)
>{
> ipt_char_major = register_chrdev(0,"ipt_CSUM_char",&char_fops);
> init_timer(&csum_timer);
> csum_timer.function = timer_callback;
> init_waitqueue_head(&inqMSG);
> printk("register target\n");
> return ipt_register_target(&ipt_CSUM);
>}
>
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