全部博文(230)
标题 | 阅读 | 评论 | 转发 | 发布日期 | |
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人耳为何怕指甲刮黑板、勺子饭盒、泡沫蹭玻璃等声音 | 1990 | 0 | 0 | 2007-03-03 | |
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做一个自信快乐的人 | 4453 | 0 | 0 | 2006-12-09 | |
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油漆匠 | 1978 | 0 | 0 | 2006-11-23 | |
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Clock in a Linux Guest Runs More Slowly or Quickly | 3219 | 0 | 0 | 2006-11-22 | |
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右脚崴了就算了,左脚又来凑热闹 | 2152 | 0 | 0 | 2006-10-24 |
phoenixcsl2015-05-26 09:57
hi,platinum,请问netfilter能够过滤arp的东西吗?我写了一些代码,在NF_ARP_IN和OUT捕获一些信息,但是为什么什么都抓不到?
代码:
static unsigned int hook_func_in(unsigned int hooknum,
struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
int (*okfn)(struct sk_buff*))
{
sb = skb;
ethh = eth_hdr(skb);
printk(" in skb ethh dest %s\n",ethh->h_dest);
printk("in skb ethh source %s\n",ethh->h_source);
return NF_ACCEPT;
}
static struct nf_hook_ops nfho_ops[]=
{
.hook = hook_func_in,
.owner = THIS_MODULE,
.pf =NF_ARP,
.hooknum = NF_ARP_IN,
.priority = NF_IP_PRI_FIRST,
}
static struct nf_hook_ops nfho_ops[]=
{
.hook = hook_func_in,
.owner = THIS_MODULE,
.pf =NF_ARP,
.hooknum = NF_ARP_IN,
.priority = NF_IP_PRI_FIRST,
}