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* netfilter: nf_ct_helper: define pr_fmt()Pablo Neira Ayuso2016-01-041-3/+4
| | | | Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* netfilter: add my copyright statementsPatrick McHardy2013-04-181-1/+1
| | | | | | | | | | | | | | | | | | | | | | Add copyright statements to all netfilter files which have had significant changes done by myself in the past. Some notes: - nf_conntrack_ecache.c was incorrectly attributed to Rusty and Netfilter Core Team when it got split out of nf_conntrack_core.c. The copyrights even state a date which lies six years before it was written. It was written in 2005 by Harald and myself. - net/ipv{4,6}/netfilter.c, net/netfitler/nf_queue.c were missing copyright statements. I've added the copyright statement from net/netfilter/core.c, where this code originated - for nf_conntrack_proto_tcp.c I've also added Jozsef, since I didn't want it to give the wrong impression Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* netfilter: nf_ct_helper: better logging for dropped packetsPablo Neira Ayuso2013-02-191-2/+6
| | | | | | | | | | | | | | | | | | | | | Connection tracking helpers have to drop packets under exceptional situations. Currently, the user gets the following logging message in case that happens: nf_ct_%s: dropping packet ... However, depending on the helper, there are different reasons why a packet can be dropped. This patch modifies the existing code to provide more specific error message in the scope of each helper to help users to debug the reason why the packet has been dropped, ie: nf_ct_%s: dropping packet: reason ... Thanks to Joe Perches for many formatting suggestions. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* netfilter: nf_ct_helper: allocate 16 bytes for the helper and policy namesPablo Neira Ayuso2012-06-161-6/+2Star
| | | | | | | | | | | | | | This patch modifies the struct nf_conntrack_helper to allocate the room for the helper name. The maximum length is 16 bytes (this was already introduced in 2.6.24). For the maximum length for expectation policy names, I have also selected 16 bytes. This patch is required by the follow-up patch to support user-space connection tracking helpers. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* netfilter: cleanup printk messagesStephen Hemminger2010-05-131-2/+2
| | | | | | | Make sure all printk messages have a severity level. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
* netfilter: nf_conntrack: connection tracking helper name persistent aliasesPablo Neira Ayuso2008-11-171-0/+1
| | | | | | | | | | | This patch adds the macro MODULE_ALIAS_NFCT_HELPER that defines a way to provide generic and persistent aliases for the connection tracking helpers. This next patch requires this patch. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Patrick McHardy <kaber@trash.net>
* [NETFILTER]: nf_conntrack: replace NF_CT_DUMP_TUPLE macro indrection by ↵Jan Engelhardt2008-04-141-3/+3
| | | | | | | | | | function call Directly call IPv4 and IPv6 variants where the address family is easily known. Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de> Signed-off-by: Patrick McHardy <kaber@trash.net>
* [NETFILTER]: nf_conntrack: add tuplehash l3num/protonum accessorsPatrick McHardy2008-04-141-2/+2
| | | | | | | Add accessors for l3num and protonum and get rid of some overly long expressions. Signed-off-by: Patrick McHardy <kaber@trash.net>
* [NETFILTER]: nf_conntrack: introduce expectation classes and policiesPatrick McHardy2008-03-261-3/+8
| | | | | | | | | | | | | | | Introduce expectation classes and policies. An expectation class is used to distinguish different types of expectations by the same helper (for example audio/video/t.120). The expectation policy is used to hold the maximum number of expectations and the initial timeout for each class. The individual classes are isolated from each other, which means that for example an audio expectation will only evict other audio expectations. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: nf_{conntrack,nat}_tftp: annotate TFTP helper with constJan Engelhardt2008-02-011-1/+2
| | | | | | Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: conntrack: get rid of sparse warningsStephen Hemminger2008-02-011-1/+1
| | | | | | | | Teach sparse about locking here, and fix signed/unsigned warnings. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: Replace sk_buff ** with sk_buff *Herbert Xu2007-10-151-4/+4
| | | | | | | | | With all the users of the double pointers removed, this patch mops up by finally replacing all occurances of sk_buff ** in the netfilter API by sk_buff *. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: Convert DEBUGP to pr_debugPatrick McHardy2007-07-111-13/+4Star
| | | | | | | Convert DEBUGP to pr_debug and fix lots of non-compiling debug statements. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: nf_conntrack: reduce masks to a subset of tuplesPatrick McHardy2007-07-111-3/+0Star
| | | | | | | | | | | | | | Since conntrack currently allows to use masks for every bit of both helper and expectation tuples, we can't hash them and have to keep them on two global lists that are searched for every new connection. This patch removes the never used ability to use masks for the destination part of the expectation tuple and completely removes masks from helpers since the only reasonable choice is a full match on l3num, protonum and src.u.all. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: nf_conntrack_expect: function naming unificationPatrick McHardy2007-07-111-7/+5Star
| | | | | | | | | | Currently there is a wild mix of nf_conntrack_expect_, nf_ct_exp_, expect_, exp_, ... Consistently use nf_ct_ as prefix for exported functions. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: Fix whitespace errorsYOSHIFUJI Hideaki2007-02-121-1/+1
| | | | | | Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: nf_conntrack: fix header inclusions for helpersYasuyuki Kozakai2006-12-031-0/+1
| | | | | Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: nf_conntrack/nf_nat: add TFTP helper portPatrick McHardy2006-12-031-0/+159
Add IPv4 and IPv6 capable nf_conntrack port of the TFTP conntrack/NAT helper. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
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