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2008-10-08netfilter: ebtables: make BRIDGE_NF_EBTABLES a menuconfig optionJan Engelhardt
Signed-off-by: Jan Engelhardt <jengelh@medozas.de> Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08netfilter: ip6tables: fix Kconfig entry dependency for ip6t_LOGJan Engelhardt
ip6t_LOG does certainly not depend on the filter table. (Also, move it so that menuconfig still displays it correctly.) Signed-off-by: Jan Engelhardt <jengelh@medozas.de> Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08netfilter: ip6tables: fix name of hopbyhop in KconfigJan Engelhardt
The module is called hbh, not hopbyhop. Signed-off-by: Jan Engelhardt <jengelh@medozas.de> Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08netfilter: xtables: do centralized checkentry call (1/2)Jan Engelhardt
It used to be that {ip,ip6,etc}_tables called extension->checkentry themselves, but this can be moved into the xtables core. Signed-off-by: Jan Engelhardt <jengelh@medozas.de> Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08netfilter: ebtables: fix one wrong return valueJan Engelhardt
Usually -EINVAL is used when checkentry fails (see *_tables). Signed-off-by: Jan Engelhardt <jengelh@medozas.de> Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08netfilter: remove redundant casts from EbtablesJan Engelhardt
Signed-off-by: Jan Engelhardt <jengelh@medozas.de> Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08netfilter: remove unused Ebtables functionsJan Engelhardt
Signed-off-by: Jan Engelhardt <jengelh@medozas.de> Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08netfilter: implement hotdrop for EbtablesJan Engelhardt
Signed-off-by: Jan Engelhardt <jengelh@medozas.de> Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08netfilter: ebtables: use generic table checkingJan Engelhardt
Ebtables ORs (1 << NF_BR_NUMHOOKS) into the hook mask to indicate that the extension was called from a base chain. So this also needs to be present in the extensions' ->hooks. Signed-off-by: Jan Engelhardt <jengelh@medozas.de> Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08netfilter: x_tables: output bad hook mask in hexadecimalJan Engelhardt
It is a mask, and masks are most useful in hex. Signed-off-by: Jan Engelhardt <jengelh@medozas.de> Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08netfilter: move Ebtables to use XtablesJan Engelhardt
Signed-off-by: Jan Engelhardt <jengelh@medozas.de> Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08netfilter: change Ebtables function signatures to match Xtables'sJan Engelhardt
Signed-off-by: Jan Engelhardt <jengelh@medozas.de> Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08netfilter: ebt_among: obtain match size through different meansJan Engelhardt
The function signatures will be changed to match those of Xtables, and the datalen argument will be gone. ebt_among unfortunately relies on it, so we need to obtain it somehow. Signed-off-by: Jan Engelhardt <jengelh@medozas.de> Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08netfilter: add dummy members to Ebtables code to ease transition to XtablesJan Engelhardt
Signed-off-by: Jan Engelhardt <jengelh@medozas.de> Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08netfilter: Change return types of targets/watchers for Ebtables extensionsJan Engelhardt
Signed-off-by: Jan Engelhardt <jengelh@medozas.de> Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08netfilter: change return types of match functions for ebtables extensionsJan Engelhardt
Signed-off-by: Jan Engelhardt <jengelh@medozas.de> Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08netfilter: change return types of check functions for Ebtables extensionsJan Engelhardt
Signed-off-by: Jan Engelhardt <jengelh@medozas.de> Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08netfilter: ebtables: do centralized size checkingJan Engelhardt
Signed-off-by: Jan Engelhardt <jengelh@medozas.de> Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08netfilter: Add documentation for tproxyKOVACS Krisztian
Add basic usage instructions to Documentation/networking. Signed-off-by: KOVACS Krisztian <hidden@sch.bme.hu> Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08netfilter: iptables TPROXY targetKOVACS Krisztian
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: KOVACS Krisztian <hidden@sch.bme.hu> Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08netfilter: iptables socket matchKOVACS Krisztian
Add iptables 'socket' match, which matches packets for which a TCP/UDP socket lookup succeeds. Signed-off-by: KOVACS Krisztian <hidden@sch.bme.hu> Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08netfilter: iptables tproxy coreKOVACS Krisztian
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: KOVACS Krisztian <hidden@sch.bme.hu> Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08netfilter: split netfilter IPv4 defragmentation into a separate moduleKOVACS Krisztian
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: KOVACS Krisztian <hidden@sch.bme.hu> Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08netfilter: enable netfilter in netnsAlexey Dobriyan
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: Patrick McHardy <kaber@trash.net>
2008-10-08netfilter: netns nat: PPTP NAT in netnsAlexey Dobriyan
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08netfilter: netns nf_conntrack: fixup DNAT in netnsAlexey Dobriyan
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08netfilter: netns nat: per-netns bysource hashAlexey Dobriyan
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08netfilter: netns nat: per-netns NAT tableAlexey Dobriyan
Same story as with iptable_filter, iptables_raw tables. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08netfilter: netns nat: fix ipt_MASQUERADE in netnsAlexey Dobriyan
First, allow entry in notifier hook. Second, start conntrack cleanup in netns to which netdevice belongs. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08netfilter: netns nf_conntrack: PPTP conntracking in netnsAlexey Dobriyan
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08netfilter: netns nf_conntrack: GRE conntracking in netnsAlexey Dobriyan
* make keymap list per-netns * per-netns keymal lock (not strictly necessary) * flush keymap at netns stop and module unload. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08netfilter: netns nf_conntrack: H323 conntracking in netnsAlexey Dobriyan
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08netfilter: netns nf_conntrack: SIP conntracking in netnsAlexey Dobriyan
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08netfilter: netns nf_conntrack: final netns tweaksAlexey Dobriyan
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: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08netfilter: netns nf_conntrack: per-netns conntrack accountingAlexey Dobriyan
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08netfilter: netns nf_conntrack: per-netns ↵Alexey Dobriyan
net.netfilter.nf_conntrack_log_invalid sysctl Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08netfilter: netns nf_conntrack: per-netns net.netfilter.nf_conntrack_checksum ↵Alexey Dobriyan
sysctl Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08netfilter: netns nf_conntrack: per-netns net.netfilter.nf_conntrack_count sysctlAlexey Dobriyan
Note, sysctl table is always duplicated, this is simpler and less special-cased. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08netfilter: netns nf_conntrack: per-netns /proc/net/stat/nf_conntrack, ↵Alexey Dobriyan
/proc/net/stat/ip_conntrack Show correct conntrack count, while I'm at it. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08netfilter: netns nf_conntrack: per-netns statisticsAlexey Dobriyan
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08netfilter: netns nf_conntrack: per-netns event cacheAlexey Dobriyan
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: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08netfilter: netns nf_conntrack: pass conntrack to nf_conntrack_event_cache() ↵Alexey Dobriyan
not skb This is cleaner, we already know conntrack to which event is relevant. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08netfilter: netns nf_conntrack: cleanup after L3 and L4 proto unregister in ↵Alexey Dobriyan
every netns Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08netfilter: netns nf_conntrack: unregister helper in every netnsAlexey Dobriyan
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08netns: export netns listAlexey Dobriyan
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: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08netfilter: netns nf_conntrack: per-netns /proc/net/ip_conntrack, ↵Alexey Dobriyan
/proc/net/stat/ip_conntrack, /proc/net/ip_conntrack_expect Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08netfilter: netns nf_conntrack: per-netns /proc/net/nf_conntrack_expectAlexey Dobriyan
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08netfilter: netns nf_conntrack: per-netns /proc/net/nf_conntrack, ↵Alexey Dobriyan
/proc/net/stat/nf_conntrack Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08netfilter: netns nf_conntrack: pass netns pointer to L4 protocol's ->error hookAlexey Dobriyan
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: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08netfilter: netns nf_conntrack: pass netns pointer to nf_conntrack_in()Alexey Dobriyan
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: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
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