aboutsummaryrefslogtreecommitdiffstats
path: root/net/netfilter (follow)
AgeCommit message (Collapse)AuthorFilesLines
2007-07-26netfilter endian regressionsAl Viro5-14/+16
no real bugs, just misannotations cropping up Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-24[NETFILTER]: Clean up duplicate includes in net/netfilter/Jesper Juhl4-4/+0
This patch cleans up duplicate includes in net/netfilter/ Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-20ANSIfy a couple of functions in netfilterAl Viro1-2/+2
It's C, not C++... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-20mm: Remove slab destructors from kmem_cache_create().Paul Mundt3-3/+3
Slab destructors were no longer supported after Christoph's c59def9f222d44bb7e2f0a559f2906191a0862d7 change. They've been BUGs for both slab and slub, and slob never supported them either. This rips out support for the dtor pointer from kmem_cache_create() completely and fixes up every single callsite in the kernel (there were about 224, not including the slab allocator definitions themselves, or the documentation references). Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-07-19Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds2-2/+2
* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: (25 commits) [TG3]: Fix msi issue with kexec/kdump. [NET] XFRM: Fix whitespace errors. [NET] TIPC: Fix whitespace errors. [NET] SUNRPC: Fix whitespace errors. [NET] SCTP: Fix whitespace errors. [NET] RXRPC: Fix whitespace errors. [NET] ROSE: Fix whitespace errors. [NET] RFKILL: Fix whitespace errors. [NET] PACKET: Fix whitespace errors. [NET] NETROM: Fix whitespace errors. [NET] NETFILTER: Fix whitespace errors. [NET] IPV4: Fix whitespace errors. [NET] DCCP: Fix whitespace errors. [NET] CORE: Fix whitespace errors. [NET] BLUETOOTH: Fix whitespace errors. [NET] AX25: Fix whitespace errors. [PATCH] mac80211: remove rtnl locking in ieee80211_sta.c [PATCH] mac80211: fix GCC warning on 64bit platforms [GENETLINK]: Dynamic multicast groups. [NETLIKN]: Allow removing multicast groups. ...
2007-07-19some kmalloc/memset ->kzalloc (tree wide)Yoann Padioleau1-2/+1
Transform some calls to kmalloc/memset to a single kzalloc (or kcalloc). Here is a short excerpt of the semantic patch performing this transformation: @@ type T2; expression x; identifier f,fld; expression E; expression E1,E2; expression e1,e2,e3,y; statement S; @@ x = - kmalloc + kzalloc (E1,E2) ... when != \(x->fld=E;\|y=f(...,x,...);\|f(...,x,...);\|x=E;\|while(...) S\|for(e1;e2;e3) S\) - memset((T2)x,0,E1); @@ expression E1,E2,E3; @@ - kzalloc(E1 * E2,E3) + kcalloc(E1,E2,E3) [akpm@linux-foundation.org: get kcalloc args the right way around] Signed-off-by: Yoann Padioleau <padator@wanadoo.fr> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Acked-by: Russell King <rmk@arm.linux.org.uk> Cc: Bryan Wu <bryan.wu@analog.com> Acked-by: Jiri Slaby <jirislaby@gmail.com> Cc: Dave Airlie <airlied@linux.ie> Acked-by: Roland Dreier <rolandd@cisco.com> Cc: Jiri Kosina <jkosina@suse.cz> Acked-by: Dmitry Torokhov <dtor@mail.ru> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Mauro Carvalho Chehab <mchehab@infradead.org> Acked-by: Pierre Ossman <drzeus-list@drzeus.cx> Cc: Jeff Garzik <jeff@garzik.org> Cc: "David S. Miller" <davem@davemloft.net> Acked-by: Greg KH <greg@kroah.com> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-19[NET] NETFILTER: Fix whitespace errors.YOSHIFUJI Hideaki2-2/+2
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2007-07-18[NETFILTER]: xt_connlimit needs to depend on nf_conntrackCornelia Huck1-0/+1
With NF_CONNTRACK=n, NETFILTER_XT_MATCH_CONNLIMIT=m I get the following errors on current git: CC [M] net/netfilter/xt_connlimit.o In file included from net/netfilter/xt_connlimit.c:27: include/net/netfilter/nf_conntrack.h:100: error: field 'ct_general' has incomplete type include/net/netfilter/nf_conntrack.h: In function 'nf_ct_get': include/net/netfilter/nf_conntrack.h:164: error: 'const struct sk_buff' has no member named 'nfct' include/net/netfilter/nf_conntrack.h: In function 'nf_ct_put': include/net/netfilter/nf_conntrack.h:171: warning: implicit declaration of function 'nf_conntrack_put' include/net/netfilter/nf_conntrack.h: In function 'nf_ct_is_untracked': include/net/netfilter/nf_conntrack.h:253: error: 'const struct sk_buff' has no member named 'nfct' In file included from net/netfilter/xt_connlimit.c:28: include/net/netfilter/nf_conntrack_core.h: In function 'nf_conntrack_confirm': include/net/netfilter/nf_conntrack_core.h:68: error: 'struct sk_buff' has no member named 'nfct' Adding a dependency in Kconfig fixes this. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-14[NETFILTER]: nf_conntrack: UDPLITE supportPatrick McHardy3-0/+277
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-14[NETFILTER]: nf_conntrack: mark protocols __read_mostlyPatrick McHardy6-9/+9
Also remove two unnecessary EXPORT_SYMBOLs and move the nf_conntrack_l3proto_ipv4 declaration to the correct file. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-14[NETFILTER]: x_tables: add connlimit matchJan Engelhardt3-0/+321
ipt_connlimit has been sitting in POM-NG for a long time. Here is a new shiny xt_connlimit with: * xtables'ified * will request the layer3 module (previously it hotdropped every packet when it was not loaded) * fixed: there was a deadlock in case of an OOM condition * support for any layer4 protocol (e.g. UDP/SCTP) * using jhash, as suggested by Eric Dumazet * ipv6 support Signed-off-by: Jan Engelhardt <jengelh@gmx.de> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-14[NETFILTER]: nf_conntrack: Introduces nf_ct_get_tuplepr and uses itYasuyuki Kozakai1-0/+30
nf_ct_get_tuple() requires the offset to transport header and that bothers callers such as icmp[v6] l4proto modules. This introduces new function to simplify them. 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>
2007-07-14[NETFILTER]: nf_conntrack: make l3proto->prepare() generic and renames itYasuyuki Kozakai2-6/+6
The icmp[v6] l4proto modules parse headers in ICMP[v6] error to get tuple. But they have to find the offset to transport protocol header before that. Their processings are almost same as prepare() of l3proto modules. This makes prepare() more generic to simplify icmp[v6] l4proto module later. 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>
2007-07-14[NETFILTER]: nf_conntrack: Increment error count on parsing IPv4 headerYasuyuki Kozakai1-0/+2
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>
2007-07-10[NETFILTER]: {ip, nf}_conntrack_sctp: fix remotely triggerable NULL ptr dereference (CVE-2007-2876)Patrick McHardy1-1/+2
When creating a new connection by sending an unknown chunk type, we don't transition to a valid state, causing a NULL pointer dereference in sctp_packet when accessing sctp_timeouts[SCTP_CONNTRACK_NONE]. Fix by don't creating new conntrack entry if initial state is invalid. Noticed by Vilmos Nebehaj <vilmos.nebehaj@ramsys.hu> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Chris Wright <chrisw@sous-sol.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-10[NET]: Make all initialized struct seq_operations const.Philippe De Muyter8-9/+9
Make all initialized struct seq_operations in net/ const Signed-off-by: Philippe De Muyter <phdm@macqel.be> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-10[NETFILTER]: x_tables: add more detail to error message about match/target mask mismatchBalazs Scheidler1-4/+5
Signed-off-by: Balazs Scheidler <bazsi@balabit.hu> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-10[NETFILTER]: nf_queue: Use RCU and mutex for queue handlersYasuyuki Kozakai1-23/+29
Queue handlers are registered/unregistered in only process context. 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>
2007-07-10[NETFILTER]: nfnetlink_queue: don't unregister handler of other subsystemYasuyuki Kozakai2-4/+7
The queue handlers registered by ip[6]_queue.ko at initialization should not be unregistered according to requests from userland program using nfnetlink_queue. If we allow that, there is no way to register the handlers of built-in ip[6]_queue again. 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>
2007-07-10[NETFILTER]: Convert DEBUGP to pr_debugPatrick McHardy13-412/+306
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>
2007-07-10[NETFILTER]: xt_helper: use RCUPatrick McHardy1-23/+8
The ->helper pointer is protected by RCU, no need to take nf_conntrack_lock. Also remove excessive debugging. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-10[NETFILTER]: nf_conntrack_h323: turn some printks into DEBUGPsPatrick McHardy1-15/+10
Don't spam the ringbuffer with decoding errors. The only printks remaining are for dropped packets when we're certain they are H.323. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-10[NETFILTER]: nf_conntrack: early_drop improvementPatrick McHardy1-7/+15
When the maximum number of conntrack entries is reached and a new one needs to be allocated, conntrack tries to drop an unassured connection from the same hash bucket the new conntrack would hash to. Since with a properly sized hash the average number of entries per bucket is 1, the chances of actually finding one are not very good. This patch makes it walk the hash until a minimum number of 8 entries are checked. Based on patch by Vasily Averin <vvs@sw.ru>. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-10[NETFILTER]: nf_conntrack: mark helpers __read_mostlyPatrick McHardy2-4/+4
Most are __read_mostly already, this changes the remaining ones. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-10[NETFILTER]: nf_conntrack_helper: use hashtable for conntrack helpersPatrick McHardy1-13/+57
Eliminate the last global list searched for every new connection. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-10[NETFILTER]: nf_conntrack_expect: introduce nf_conntrack_expect_max sysctPatrick McHardy2-1/+18
As a last step of preventing DoS by creating lots of expectations, this patch introduces a global maximum and a sysctl to control it. The default is initialized to 4 * the expectation hash table size, which results in 1/64 of the default maxmimum of conntracks. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-10[NETFILTER]: nf_conntrack_expect: maintain per conntrack expectation listPatrick McHardy4-36/+39
This patch brings back the per-conntrack expectation list that was removed around 2.6.10 to avoid walking all expectations on expectation eviction and conntrack destruction. As these were the last users of the global expectation list, this patch also kills that. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-10[NETFILTER]: nf_conntrack_helper/nf_conntrack_netlink: convert to expectation hashPatrick McHardy2-42/+58
Convert from the global expectation list to the hash table. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-10[NETFILTER]: nf_conntrack_expect: convert proc functions to hashPatrick McHardy1-24/+61
Convert from the global expectation list to the hash table. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-10[NETFILTER]: nf_conntrack: use hashtable for expectationsPatrick McHardy1-6/+66
Currently all expectations are kept on a global list that - needs to be searched for every new conncetion - needs to be walked for evicting expectations when a master connection has reached its limit - needs to be walked on connection destruction for connections that have open expectations This is obviously not good, especially when considering helpers like H.323 that register *lots* of expectations and can set up permanent expectations, but it also allows for an easy DoS against firewalls using connection tracking helpers. Use a hashtable for expectations to avoid incurring the search overhead for every new connection. The default hash size is 1/256 of the conntrack hash table size, this can be overriden using a module parameter. This patch only introduces the hash table for expectation lookups and keeps other users to reduce the noise, the following patches will get rid of it completely. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-10[NETFILTER]: nf_conntrack: move expectaton related init code to nf_conntrack_expect.cPatrick McHardy3-22/+57
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-10[NETFILTER]: nf_conntrack_netlink: sync expectation dumping with conntrack table dumpingPatrick McHardy1-7/+25
Resync expectation table dumping code with conntrack dumping: don't rely on the unique ID anymore since that requires to walk the list backwards, which doesn't work with the upcoming conversion to hlists. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-10[NETFILTER]: nf_conntrack_expect: avoid useless list walkingPatrick McHardy1-10/+3
Don't walk the list when unexpecting an expectation, we already have a reference and the timer check is enough to guarantee that it still is on the list. This comment suggests that it was copied there by mistake from expectation eviction: /* choose the oldest expectation to evict */ Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-10[NETFILTER]: nf_conntrack: reduce masks to a subset of tuplesPatrick McHardy12-84/+24
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>
2007-07-10[NETFILTER]: nf_conntrack_ftp: use nf_ct_expect_initPatrick McHardy1-30/+6
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-10[NETFILTER]: nf_conntrack_expect: function naming unificationPatrick McHardy14-207/+200
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>
2007-07-10[NETFILTER]: nf_conntrack: export hash allocation/destruction functionsPatrick McHardy1-11/+12
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-10[NETFILTER]: nf_conntrack: remove 'ignore_conntrack' argument from nf_conntrack_find_getPatrick McHardy3-8/+7
All callers pass NULL, this also doesn't seem very useful for modules. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-10[NETFILTER]: nf_conntrack: use hlists for conntrack hashPatrick McHardy4-57/+71
Convert conntrack hash to hlists to reduce its size and cache footprint. Since the default hashsize to max. entries ratio sucks (1:16), this patch doesn't reduce the amount of memory used for the hash by default, but instead uses a better ratio of 1:8, which results in the same max. entries value. One thing worth noting is early_drop. It really should use LRU, so it now has to iterate over the entire chain to find the last unconfirmed entry. Since chains shouldn't be very long and the entire operation is very rare this shouldn't be a problem. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-10[NETFILTER]: nf_conntrack: round up hashsize to next multiple of PAGE_SIZEPatrick McHardy1-10/+12
Don't let the rest of the page go to waste. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-10[NETFILTER]: nf_conntrack_extend: use __read_mostly for struct nf_ct_ext_typePatrick McHardy1-1/+1
Also make them static. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-10[NETFILTER]: nf_nat: kill global 'destroy' operationYasuyuki Kozakai1-8/+0
This kills the global 'destroy' operation which was used by NAT. Instead it uses the extension infrastructure so that multiple extensions can register own operations. 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>
2007-07-10[NETFILTER]: nf_conntrack: remove old memory allocator of conntrackYasuyuki Kozakai2-214/+15
Now memory space for help and NAT are allocated by extension infrastructure. 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>
2007-07-10[NETFILTER]: nf_conntrack: use extension infrastructure for helperYasuyuki Kozakai3-56/+88
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>
2007-07-10[NETFILTER]: nf_conntrack: introduce extension infrastructureYasuyuki Kozakai3-1/+200
Old space allocator of conntrack had problems about extensibility. - It required slab cache per combination of extensions. - It expected what extensions would be assigned, but it was impossible to expect that completely, then we allocated bigger memory object than really required. - It needed to search helper twice due to lock issue. Now basic informations of a connection are stored in 'struct nf_conn'. And a storage for extension (helper, NAT) is allocated by kmalloc. 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>
2007-07-10[NETFILTER]: x_tables: mark matches and targets __read_mostlyPatrick McHardy37-37/+37
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-10[NETFILTER]: x_tables: add TRACE targetJozsef Kadlecsik3-0/+66
The TRACE target can be used to follow IP and IPv6 packets through the ruleset. Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu> Signed-off-by: Patrick NcHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-10[NETFILTER]: Add u32 matchJan Engelhardt3-0/+149
Along comes... xt_u32, a revamped ipt_u32 from POM-NG, Plus: * 2007-06-02: added ipv6 support * 2007-06-05: uses kmalloc for the big buffer * 2007-06-05: added inversion * 2007-06-20: use skb_copy_bits() and get rid of the big buffer and lock (suggested by Pablo Neira Ayuso) Signed-off-by: Jan Engelhardt <jengelh@gmx.de> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-10[NETFILTER]: Remove redundant parentheses/bracesJan Engelhardt11-36/+31
Removes redundant parentheses and braces (And add one pair in a xt_tcpudp.c macro). Signed-off-by: Jan Engelhardt <jengelh@gmx.de> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-10[NETFILTER]: add some consts, remove some castsJan Engelhardt18-51/+59
Make a number of variables const and/or remove unneeded casts. Signed-off-by: Jan Engelhardt <jengelh@gmx.de> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.