- 08 Oct, 2008 40 commits
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Jan Engelhardt authored
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Jan Engelhardt <jengelh@medozas.de> Signed-off-by:
Patrick McHardy <kaber@trash.net>
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Jan Engelhardt authored
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Jan Engelhardt authored
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Jan Engelhardt authored
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KOVACS Krisztian authored
Add basic usage instructions to Documentation/networking. Signed-off-by:
KOVACS Krisztian <hidden@sch.bme.hu> Signed-off-by:
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KOVACS Krisztian authored
The TPROXY target implements redirection of non-local TCP/UDP traffic to local sockets. Additionally, it's possible to manipulate the packet mark if and only if a socket has been found. (We need this because we cannot use multiple targets in the same iptables rule.) Signed-off-by:
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KOVACS Krisztian authored
Add iptables 'socket' match, which matches packets for which a TCP/UDP socket lookup succeeds. Signed-off-by:
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KOVACS Krisztian authored
The iptables tproxy core is a module that contains the common routines used by various tproxy related modules (TPROXY target and socket match) Signed-off-by:
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KOVACS Krisztian authored
Netfilter connection tracking requires all IPv4 packets to be defragmented. Both the socket match and the TPROXY target depend on this functionality, so this patch separates the Netfilter IPv4 defrag hooks into a separate module. Signed-off-by:
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Alexey Dobriyan authored
From kernel perspective, allow entrance in nf_hook_slow(). Stuff which uses nf_register_hook/nf_register_hooks, but otherwise not netns-ready: DECnet netfilter ipt_CLUSTERIP nf_nat_standalone.c together with XFRM (?) IPVS several individual match modules (like hashlimit) ctnetlink NOTRACK all sorts of queueing and reporting to userspace L3 and L4 protocol sysctls, bridge sysctls probably something else Anyway critical mass has been achieved, there is no reason to hide netfilter any longer. From userspace perspective, allow to manipulate all sorts of iptables/ip6tables/arptables rules. Signed-off-by:
Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by:
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Alexey Dobriyan authored
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Alexey Dobriyan authored
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Alexey Dobriyan authored
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Alexey Dobriyan authored
Same story as with iptable_filter, iptables_raw tables. Signed-off-by:
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Alexey Dobriyan authored
First, allow entry in notifier hook. Second, start conntrack cleanup in netns to which netdevice belongs. Signed-off-by:
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Alexey Dobriyan authored
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Alexey Dobriyan authored
* make keymap list per-netns * per-netns keymal lock (not strictly necessary) * flush keymap at netns stop and module unload. Signed-off-by:
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Alexey Dobriyan authored
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Alexey Dobriyan authored
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Alexey Dobriyan authored
Add init_net checks to not remove kmem_caches twice and so on. Refactor functions to split code which should be executed only for init_net into one place. ip_ct_attach and ip_ct_destroy assignments remain separate, because they're separate stages in setup and teardown. NOTE: NOTRACK code is in for-every-net part. It will be made per-netns after we decidce how to do it correctly. Signed-off-by:
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Alexey Dobriyan authored
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Alexey Dobriyan authored
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Alexey Dobriyan authored
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Alexey Dobriyan authored
Note, sysctl table is always duplicated, this is simpler and less special-cased. Signed-off-by:
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Alexey Dobriyan authored
Show correct conntrack count, while I'm at it. Signed-off-by:
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Alexey Dobriyan authored
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Alexey Dobriyan authored
Heh, last minute proof-reading of this patch made me think, that this is actually unneeded, simply because "ct" pointers will be different for different conntracks in different netns, just like they are different in one netns. Not so sure anymore. [Patrick: pointers will be different, flushing can only be done while inactive though and thus it needs to be per netns] Signed-off-by:
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Alexey Dobriyan authored
This is cleaner, we already know conntrack to which event is relevant. Signed-off-by:
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Alexey Dobriyan authored
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Alexey Dobriyan authored
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Alexey Dobriyan authored
Conntrack code will use it for a) removing expectations and helpers when corresponding module is removed, and b) removing conntracks when L3 protocol conntrack module is removed. Signed-off-by:
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Alexey Dobriyan authored
netfilter: netns nf_conntrack: per-netns /proc/net/ip_conntrack, /proc/net/stat/ip_conntrack, /proc/net/ip_conntrack_expect Signed-off-by:
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Alexey Dobriyan authored
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Alexey Dobriyan authored
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Alexey Dobriyan authored
Again, it's deducible from skb, but we're going to use it for nf_conntrack_checksum and statistics, so just pass it from upper layer. Signed-off-by:
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Alexey Dobriyan authored
It's deducible from skb->dev or skb->dst->dev, but we know netns at the moment of call, so pass it down and use for finding and creating conntracks. Signed-off-by:
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Alexey Dobriyan authored
What is confirmed connection in one netns can very well be unconfirmed in another one. Signed-off-by:
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Alexey Dobriyan authored
Make per-netns a) expectation hash and b) expectations count. Expectations always belongs to netns to which it's master conntrack belong. This is natural and doesn't bloat expectation. Proc files and leaf users are stubbed to init_net, this is temporary. Signed-off-by:
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Alexey Dobriyan authored
Take netns from skb->dst->dev. It should be safe because, they are called from LOCAL_OUT hook where dst is valid (though, I'm not exactly sure about IPVS and queueing packets to userspace). [Patrick: its safe everywhere since they already expect skb->dst to be set] Signed-off-by:
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Alexey Dobriyan authored
* make per-netns conntrack hash Other solution is to add ->ct_net pointer to tuplehashes and still has one hash, I tried that it's ugly and requires more code deep down in protocol modules et al. * propagate netns pointer to where needed, e. g. to conntrack iterators. Signed-off-by:
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