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path: root/net/netfilter/nf_conntrack_netlink.c
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* [NETFILTER]: ctnetlink: fix compile failure with NF_CONNTRACK_MARK=nPatrick McHardy2007-02-021-0/+2
| | | | | | | | | | CC net/netfilter/nf_conntrack_netlink.o net/netfilter/nf_conntrack_netlink.c: In function 'ctnetlink_conntrack_event': net/netfilter/nf_conntrack_netlink.c:392: error: 'struct nf_conn' has no member named 'mark' make[3]: *** [net/netfilter/nf_conntrack_netlink.o] Error 1 Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: ctnetlink: fix leak in ctnetlink_create_conntrack error pathPatrick McHardy2007-01-231-1/+1
| | | | | Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: Add NAT support for nf_conntrackJozsef Kadlecsik2006-12-021-21/+25
| | | | | | | | | Add NAT support for nf_conntrack. Joint work of Jozsef Kadlecsik, Yasuyuki Kozakai, Martin Josefsson and myself. Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: nf_conntrack: add module aliases to IPv4 conntrack namesPatrick McHardy2006-12-021-0/+1
| | | | | Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: nf_conntrack: automatic helper assignment for expectationsPatrick McHardy2006-12-021-0/+1
| | | | | | | | | | | | | | | | | Some helpers (namely H.323) manually assign further helpers to expected connections. This is not possible with nf_conntrack anymore since we need to know whether a helper is used at allocation time. Handle the helper assignment centrally, which allows to perform the correct allocation and as a nice side effect eliminates the need for the H.323 helper to fiddle with nf_conntrack_lock. Mid term the allocation scheme really needs to be redesigned since we do both the helper and expectation lookup _twice_ for every new connection. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: nf_conntrack: endian annotationsPatrick McHardy2006-12-021-19/+18
| | | | | | | | Resync with Al Viro's ip_conntrack annotations and fix a missed spot in ip_nat_proto_icmp.c. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: ctnetlink: rework conntrack fields dumping logic on eventsPablo Neira Ayuso2006-12-021-22/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | NEW | UPDATE | DESTROY | ----------------------------------------| tuples | Y | Y | Y | status | Y | Y | N | timeout | Y | Y | N | protoinfo | S | S | N | helper | S | S | N | mark | S | S | N | counters | F | F | Y | Leyend: Y: yes N: no S: iif the field is set F: iif overflow This patch also replace IPCT_HELPINFO by IPCT_HELPER since we want to track the helper assignation process, not the changes in the private information held by the helper. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Patrick McHardy <kaber@trash.net>
* [NETFILTER]: ctnetlink: check for status attribute existence on conntrack ↵Pablo Neira Ayuso2006-12-021-3/+5
| | | | | | | | | | creation Check that status flags are available in the netlink message received to create a new conntrack. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Patrick McHardy <kaber@trash.net>
* [NETFILTER]: conntrack: add '_get' to {ip, nf}_conntrack_expect_findYasuyuki Kozakai2006-12-021-2/+2
| | | | | | | | We usually uses 'xxx_find_get' for function which increments reference count. Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp> Signed-off-by: Patrick McHardy <kaber@trash.net>
* [NETFILTER]: nf_conntrack: rename struct nf_conntrack_protocolMartin Josefsson2006-12-021-28/+28
| | | | | | | | | Rename 'struct nf_conntrack_protocol' to 'struct nf_conntrack_l4proto' in order to help distinguish it from 'struct nf_conntrack_l3proto'. It gets rather confusing with 'nf_conntrack_protocol'. Signed-off-by: Martin Josefsson <gandalf@wlug.westbo.se> Signed-off-by: Patrick McHardy <kaber@trash.net>
* [NETFILTER]: nf_conntrack: split out expectation handlingMartin Josefsson2006-12-021-0/+1
| | | | | | | | This patch splits out expectation handling into its own file nf_conntrack_expect.c Signed-off-by: Martin Josefsson <gandalf@wlug.westbo.se> Signed-off-by: Patrick McHardy <kaber@trash.net>
* [NETLINK]: Remove unused dst_pid field in netlink_skb_parmsThomas Graf2006-12-021-3/+1
| | | | | | | | The destination PID is passed directly to netlink_unicast() respectively netlink_multicast(). Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: ctnetlink: fix reference count leakPatrick McHardy2006-11-281-0/+1
| | | | | | | When NFA_NEST exceeds the skb size the protocol reference is leaked. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: nfctnetlink: assign helper to newly created conntrackYasuyuki Kozakai2006-11-281-0/+8
| | | | | | | | | This fixes the bug which doesn't assign helper to newly created conntrack via nf_conntrack_netlink. Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: ctnetlink: Remove debugging messagesPablo Neira Ayuso2006-10-151-69/+3
| | | | | | | | | Remove (compilation-breaking) debugging messages introduced at early development stage. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: ctnetlink: simplify the code to dump the conntrack tablePablo Neira Ayuso2006-09-221-57/+10
| | | | | | | | | | Merge the bits to dump the conntrack table and the ones to dump and zero counters in a single piece of code. This patch does not change the default behaviour if accounting is not enabled. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: ctnetlink: remove impossible events tests for updatesPablo Neira Ayuso2006-09-221-5/+1
| | | | | | | | IPCT_HELPER and IPCT_NATINFO bits are never set on updates. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: ctnetlink: check for listeners before sending expectation eventsPablo Neira Ayuso2006-09-221-0/+3
| | | | | | | | | This patch uses nfnetlink_has_listeners to check for listeners in userspace. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: ctnetlink: dump connection markPablo Neira Ayuso2006-09-221-0/+4
| | | | | | | | ctnetlink dumps the mark iif the event mark happened Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: ctnetlink: fix deadlock in table dumpingPatrick McHardy2006-08-171-10/+7
| | | | | | | | ip_conntrack_put must not be called while holding ip_conntrack_lock since destroy_conntrack takes it again. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: nf_conntrack: Fix undefined references to local_bh_*Yasuyuki Kozakai2006-06-291-0/+1
| | | | | | | | | | | | | | | | | CC net/netfilter/nf_conntrack_proto_sctp.o net/netfilter/nf_conntrack_proto_sctp.c: In function `sctp_print_conntrack': net/netfilter/nf_conntrack_proto_sctp.c:206: warning: implicit declaration of function `local_bh_disable' net/netfilter/nf_conntrack_proto_sctp.c:208: warning: implicit declaration of function `local_bh_enable' CC net/netfilter/nf_conntrack_netlink.o net/netfilter/nf_conntrack_netlink.c: In function `ctnetlink_dump_table': net/netfilter/nf_conntrack_netlink.c:429: warning: implicit declaration of function `local_bh_disable' net/netfilter/nf_conntrack_netlink.c:452: warning: implicit declaration of function `local_bh_enable' Spotted by Toralf Förster Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: ctnetlink: change table dumping not to require an unique IDPatrick McHardy2006-06-171-8/+24
| | | | | | | | Instead of using the ID to find out where to continue dumping, take a reference to the last entry dumped and try to continue there. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: ctnetlink: fix NAT configurationPatrick McHardy2006-06-171-31/+22
| | | | | | | | The current configuration only allows to configure one manip and overloads conntrack status flags with netlink semantic. Signed-off-by: Patrick Mchardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: {ip,nf}_conntrack_netlink: fix expectation notifier unregistrationMartin Josefsson2006-04-011-1/+1
| | | | | | | | | | | | | This patch fixes expectation notifier unregistration on module unload to use ip_conntrack_expect_unregister_notifier(). This bug causes a soft lockup at the first expectation created after a rmmod ; insmod of this module. Should go into -stable as well. Signed-off-by: Martin Josefsson <gandalf@wlug.westbo.se> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: fix ifdef for connmark support in nf_conntrack_netlinkMartin Josefsson2006-04-011-2/+2
| | | | | | | | | | | | When ctnetlink was ported from ip_conntrack to nf_conntrack two #ifdef's for connmark support were left unchanged and this code was never compiled. Problem noticed by Daniel De Graaf. Signed-off-by: Martin Josefsson <gandalf@wlug.westbo.se> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: ctnetlink: Fix expectaction mask dumpingPablo Neira Ayuso2006-03-221-22/+62
| | | | | | | | | | | | | | | | | | | | The expectation mask has some particularities that requires a different handling. The protocol number fields can be set to non-valid protocols, ie. l3num is set to 0xFFFF. Since that protocol does not exist, the mask tuple will not be dumped. Moreover, this results in a kernel panic when nf_conntrack accesses the array of protocol handlers, that is PF_MAX (0x1F) long. This patch introduces the function ctnetlink_exp_dump_mask, that correctly dumps the expectation mask. Such function uses the l3num value from the expectation tuple that is a valid layer 3 protocol number. The value of the l3num mask isn't dumped since it is meaningless from the userspace side. Thanks to Yasuyuki Kozakai and Patrick McHardy for the feedback. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: ctnetlink: avoid unneccessary event message generationPatrick McHardy2006-03-201-3/+4
| | | | | | | | Avoid unneccessary event message generation by checking for netlink listeners before building a message. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER] nf_conntrack: clean up to reduce size of 'struct nf_conn'Harald Welte2006-03-201-17/+22
| | | | | | | | | | | | | | | | | | | | This patch moves all helper related data fields of 'struct nf_conn' into a separate structure 'struct nf_conn_help'. This new structure is only present in conntrack entries for which we actually have a helper loaded. Also, this patch cleans up the nf_conntrack 'features' mechanism to resemble what the original idea was: Just glue the feature-specific data structures at the end of 'struct nf_conn', and explicitly re-calculate the pointer to it when needed rather than keeping pointers around. Saves 20 bytes per conntrack on my x86_64 box. A non-helped conntrack is 276 bytes. We still need to save another 20 bytes in order to fit into to target of 256bytes. Signed-off-by: Harald Welte <laforge@netfilter.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: ctnetlink: add MODULE_ALIAS for expectation subsystemPablo Neira Ayuso2006-02-041-0/+1
| | | | | | | | Add load-on-demand support for expectation request. eg. conntrack -L expect Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: ctnetlink: Fix subsystem used for expectation eventsMarcus Sundberg2006-02-041-1/+1
| | | | | | | | | The ctnetlink expectation events should use the NFNL_SUBSYS_CTNETLINK_EXP subsystem, not NFNL_SUBSYS_CTNETLINK. Signed-off-by: Marcus Sundberg <marcus@ingate.com> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: Filter dumped entries based on the layer 3 protocol numberPablo Neira Ayuso2006-01-051-6/+17
| | | | | | | | Dump entries of a given Layer 3 protocol number. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: Add ctnetlink port for nf_conntrackPablo Neira Ayuso2006-01-051-0/+1642
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
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