netfilter 01/09: remove "happy cracking" message
Don't spam logs for locally generated short packets. these can only be generated by root. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
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985ebdb5ed
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88843104a1
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@ -93,13 +93,8 @@ ipt_local_out_hook(unsigned int hook,
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{
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{
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/* root is playing with raw sockets. */
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/* root is playing with raw sockets. */
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if (skb->len < sizeof(struct iphdr) ||
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if (skb->len < sizeof(struct iphdr) ||
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ip_hdrlen(skb) < sizeof(struct iphdr)) {
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ip_hdrlen(skb) < sizeof(struct iphdr))
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if (net_ratelimit())
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printk("iptable_filter: ignoring short SOCK_RAW "
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"packet.\n");
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return NF_ACCEPT;
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return NF_ACCEPT;
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}
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return ipt_do_table(skb, hook, in, out,
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return ipt_do_table(skb, hook, in, out,
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dev_net(out)->ipv4.iptable_filter);
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dev_net(out)->ipv4.iptable_filter);
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}
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}
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@ -132,12 +132,8 @@ ipt_local_hook(unsigned int hook,
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/* root is playing with raw sockets. */
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/* root is playing with raw sockets. */
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if (skb->len < sizeof(struct iphdr)
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if (skb->len < sizeof(struct iphdr)
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|| ip_hdrlen(skb) < sizeof(struct iphdr)) {
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|| ip_hdrlen(skb) < sizeof(struct iphdr))
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if (net_ratelimit())
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printk("iptable_mangle: ignoring short SOCK_RAW "
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"packet.\n");
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return NF_ACCEPT;
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return NF_ACCEPT;
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}
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/* Save things which could affect route */
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/* Save things which could affect route */
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mark = skb->mark;
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mark = skb->mark;
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@ -65,12 +65,8 @@ ipt_local_hook(unsigned int hook,
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{
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{
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/* root is playing with raw sockets. */
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/* root is playing with raw sockets. */
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if (skb->len < sizeof(struct iphdr) ||
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if (skb->len < sizeof(struct iphdr) ||
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ip_hdrlen(skb) < sizeof(struct iphdr)) {
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ip_hdrlen(skb) < sizeof(struct iphdr))
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if (net_ratelimit())
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printk("iptable_raw: ignoring short SOCK_RAW "
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"packet.\n");
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return NF_ACCEPT;
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return NF_ACCEPT;
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}
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return ipt_do_table(skb, hook, in, out,
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return ipt_do_table(skb, hook, in, out,
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dev_net(out)->ipv4.iptable_raw);
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dev_net(out)->ipv4.iptable_raw);
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}
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}
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@ -96,12 +96,8 @@ ipt_local_out_hook(unsigned int hook,
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{
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{
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/* Somebody is playing with raw sockets. */
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/* Somebody is playing with raw sockets. */
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if (skb->len < sizeof(struct iphdr)
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if (skb->len < sizeof(struct iphdr)
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|| ip_hdrlen(skb) < sizeof(struct iphdr)) {
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|| ip_hdrlen(skb) < sizeof(struct iphdr))
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if (net_ratelimit())
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printk(KERN_INFO "iptable_security: ignoring short "
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"SOCK_RAW packet.\n");
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return NF_ACCEPT;
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return NF_ACCEPT;
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}
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return ipt_do_table(skb, hook, in, out,
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return ipt_do_table(skb, hook, in, out,
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dev_net(out)->ipv4.iptable_security);
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dev_net(out)->ipv4.iptable_security);
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}
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}
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@ -145,11 +145,8 @@ static unsigned int ipv4_conntrack_local(unsigned int hooknum,
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{
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{
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/* root is playing with raw sockets. */
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/* root is playing with raw sockets. */
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if (skb->len < sizeof(struct iphdr) ||
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if (skb->len < sizeof(struct iphdr) ||
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ip_hdrlen(skb) < sizeof(struct iphdr)) {
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ip_hdrlen(skb) < sizeof(struct iphdr))
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if (net_ratelimit())
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printk("ipt_hook: happy cracking.\n");
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return NF_ACCEPT;
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return NF_ACCEPT;
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}
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return nf_conntrack_in(dev_net(out), PF_INET, hooknum, skb);
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return nf_conntrack_in(dev_net(out), PF_INET, hooknum, skb);
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}
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}
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