aboutsummaryrefslogtreecommitdiff
path: root/include/net/netfilter
AgeCommit message (Collapse)Author
2008-06-09netfilter: nf_conntrack: add nf_ct_kill()Patrick McHardy
Encapsulate the common if (del_timer(&ct->timeout)) ct->timeout.function((unsigned long)ct) sequence in a new function. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-29netfilter: nf_conntrack: padding breaks conntrack hash on ARMPhilip Craig
commit 0794935e "[NETFILTER]: nf_conntrack: optimize hash_conntrack()" results in ARM platforms hashing uninitialised padding. This padding doesn't exist on other architectures. Fix this by replacing NF_CT_TUPLE_U_BLANK() with memset() to ensure everything is initialised. There were only 4 bytes that NF_CT_TUPLE_U_BLANK() wasn't clearing anyway (or 12 bytes on ARM). Signed-off-by: Philip Craig <philipc@snapgear.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-14[NETFILTER]: nf_conntrack: replace NF_CT_DUMP_TUPLE macro indrection by ↵Jan Engelhardt
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>
2008-04-14[NETFILTER]: nf_nat: use bool type in nf_nat_protoJan Engelhardt
Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de> Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-04-14[NETFILTER]: nf_conntrack: use bool type in struct nf_conntrack_tuple.hJan Engelhardt
Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de> Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-04-14[NETFILTER]: nf_conntrack: use bool type in struct nf_conntrack_l4protoJan Engelhardt
Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de> Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-04-14[NETFILTER]: nf_conntrack: use bool type in struct nf_conntrack_l3protoJan Engelhardt
Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de> Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-04-14[NETFILTER]: Remove unused callbacks in nf_conntrack_l3protoJan Engelhardt
These functions are never called. Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de> Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-04-14[NETFILTER]: nf_conntrack: add tuplehash l3num/protonum accessorsPatrick McHardy
Add accessors for l3num and protonum and get rid of some overly long expressions. Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-04-14[NETFILTER]: nf_nat: kill helper and seq_adjust hooksPatrick McHardy
Connection tracking helpers (specifically FTP) need to be called before NAT sequence numbers adjustments are performed to be able to compare them against previously seen ones. We've introduced two new hooks around 2.6.11 to maintain this ordering when NAT modules were changed to get called from conntrack helpers directly. The cost of netfilter hooks is quite high and sequence number adjustments are only rarely needed however. Add a RCU-protected sequence number adjustment function pointer and call it from IPv4 conntrack after calling the helper. Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-04-14[NETFILTER]: nf_conntrack_extend: warn on confirmed conntracksPatrick McHardy
New extensions may only be added to unconfirmed conntracks to avoid races when reallocating the storage. Also change NF_CT_ASSERT to use WARN_ON to get backtraces. Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-04-14[NETFILTER]: nf_nat: don't add NAT extension for confirmed conntracksPatrick McHardy
Adding extensions to confirmed conntracks is not allowed to avoid races on reallocation. Don't setup NAT for confirmed conntracks in case NAT module is loaded late. The has one side-effect, the connections existing before the NAT module was loaded won't enter the bysource hash. The only case where this actually makes a difference is in case of SNAT to a multirange where the IP before NAT is also part of the range. Since old connections don't enter the bysource hash the first new connection from the IP will have a new address selected. This shouldn't matter at all. Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-04-14[NETFILTER]: nf_conntrack: add DCCP protocol supportPatrick McHardy
Add DCCP conntrack helper. Thanks to Gerrit Renker <gerrit@erg.abdn.ac.uk> for review and testing. Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-04-14[NETFILTER]: nf_nat: remove unused name from struct nf_nat_protocolPatrick McHardy
Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-04-14[NETFILTER]: nf_nat: move NAT ctnetlink helpers to nf_nat_proto_commonPatrick McHardy
Move to nf_nat_proto_common and rename to nf_nat_proto_... since they're also used by protocols that don't have port numbers. Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-04-14[NETFILTER]: nf_nat: add helpers for common NAT protocol operationsPatrick McHardy
Add generic ->in_range and ->unique_tuple ops to avoid duplicating them again and again for future NAT modules and save a few bytes of text: net/ipv4/netfilter/nf_nat_proto_tcp.c: tcp_in_range | -62 (removed) tcp_unique_tuple | -259 # 271 -> 12, # inlines: 1 -> 0, size inlines: 7 -> 0 2 functions changed, 321 bytes removed net/ipv4/netfilter/nf_nat_proto_udp.c: udp_in_range | -62 (removed) udp_unique_tuple | -259 # 271 -> 12, # inlines: 1 -> 0, size inlines: 7 -> 0 2 functions changed, 321 bytes removed net/ipv4/netfilter/nf_nat_proto_gre.c: gre_in_range | -62 (removed) 1 function changed, 62 bytes removed vmlinux: 5 functions changed, 704 bytes removed Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-03-25[NETFILTER]: nf_conntrack_sip: support multiple media channelsPatrick McHardy
Add support for multiple media channels and use it to create expectations for video streams when present. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-25[NETFILTER]: nf_conntrack_sip: create signalling expectationsPatrick McHardy
Create expectations for incoming signalling connections when seeing a REGISTER request. This is needed when the registrar uses a different source port number for signalling messages and for receiving incoming calls from other endpoints than the registrar. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-25[NETFILTER]: Add nf_inet_addr_cmp()Patrick McHardy
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-25[NETFILTER]: nf_conntrack: introduce expectation classes and policiesPatrick McHardy
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>
2008-03-25[NETFILTER]: nf_conntrack_expect: support inactive expectationsPatrick McHardy
This is useful for the SIP helper and signalling expectations. We don't want to create a full-blown expectation with a wildcard as source based on a single UDP packet, but need to know the final port anyways. With inactive expectations we can register the expectation and reserve the tuple, but wait for confirmation from the registrar before activating it. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-25[NETFILTER]: nf_conntrack_expect: constify nf_ct_expect_init argumentsPatrick McHardy
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-25[NETFILTER]: nf_conntrack: fix NF_CT_TUPLE_DUMP for IPv4Patrick McHardy
NF_CT_TUPLE_DUMP prints IPv4 addresses as IPv6, fix this and use printk (guarded by #ifdef DEBUG) directly instead of pr_debug since the tuple is usually printed at the end of line and we don't want to include a log-level. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-10[NETFILTER]: nf_conntrack: replace horrible hack with ksize()Pekka Enberg
There's a horrible slab abuse in net/netfilter/nf_conntrack_extend.c that can be replaced with a call to ksize(). Cc: Christoph Lameter <clameter@sgi.com> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-07[NETFILTER]: nf_conntrack: fix ct_extend ->move operationPatrick McHardy
The ->move operation has two bugs: - It is called with the same extension as source and destination, so it doesn't update the new extension. - The address of the old extension is calculated incorrectly, instead of (void *)ct->ext + ct->ext->offset[i] it uses ct->ext + ct->ext->offset[i]. Fixes a crash on x86_64 reported by Chuck Ebbert <cebbert@redhat.com> and Thomas Woerner <twoerner@redhat.com>. Tested-by: Thomas Woerner <twoerner@redhat.com> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-31[NETFILTER]: nf_conntrack: annotate l3protos with constJan Engelhardt
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>
2008-01-31[NETFILTER]: nf_{conntrack,nat}_proto_tcp: constify and annotate TCP modulesJan Engelhardt
Constify a few data tables use const qualifiers on variables where possible in the nf_*_proto_tcp sources. 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>
2008-01-31[NETFILTER]: nf_conntrack: naming unificationPatrick McHardy
Rename all "conntrack" variables to "ct" for more consistency and avoiding some overly long lines. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-31[NETFILTER]: nf_conntrack: reorder struct nf_conntrack_l4protoPatrick McHardy
Reorder struct nf_conntrack_l4proto so all members used during packet processing are in the same cacheline. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-31[NETFILTER]: nf_conntrack: avoid duplicate protocol comparison in ↵Patrick McHardy
nf_ct_tuple_equal() nf_ct_tuple_src_equal() and nf_ct_tuple_dst_equal() both compare the protocol numbers. Unfortunately gcc doesn't optimize out the second comparison, so remove it and prefix both functions with __ to indicate that they should not be used directly. Saves another 16 byte of text in __nf_conntrack_find() on x86_64: nf_conntrack_tuple_taken | -20 # 320 -> 300, size inlines: 181 -> 161 __nf_conntrack_find | -16 # 267 -> 251, size inlines: 127 -> 115 __nf_conntrack_confirm | -40 # 875 -> 835, size inlines: 570 -> 537 3 functions changed, 76 bytes removed Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-31[NETFILTER]: nf_conntrack: optimize __nf_conntrack_find()Patrick McHardy
Ignoring specific entries in __nf_conntrack_find() is only needed by NAT for nf_conntrack_tuple_taken(). Remove it from __nf_conntrack_find() and make nf_conntrack_tuple_taken() search the hash itself. Saves 54 bytes of text in the hotpath on x86_64: __nf_conntrack_find | -54 # 321 -> 267, # inlines: 3 -> 2, size inlines: 181 -> 127 nf_conntrack_tuple_taken | +305 # 15 -> 320, lexblocks: 0 -> 3, # inlines: 0 -> 3, size inlines: 0 -> 181 nf_conntrack_find_get | -2 # 90 -> 88 3 functions changed, 305 bytes added, 56 bytes removed, diff: +249 Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-31[NETFILTER]: nf_conntrack: switch rwlock to spinlockPatrick McHardy
With the RCU conversion only write_lock usages of nf_conntrack_lock are left (except one read_lock that should actually use write_lock in the H.323 helper). Switch to a spinlock. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-31[NETFILTER]: nf_conntrack: use RCU for conntrack hashPatrick McHardy
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-31[NETFILTER]: nf_conntrack_expect: use RCU for expectation hashPatrick McHardy
Use RCU for expectation hash. This doesn't buy much for conntrack runtime performance, but allows to reduce the use of nf_conntrack_lock for /proc and nf_netlink_conntrack. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-31[NETFILTER]: nf_conntrack: use RCU for conntrack helpersPatrick McHardy
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-31[NETFILTER]: nf_conntrack: sparse warningsStephen Hemminger
The hashtable size is really unsigned so sparse complains when you pass a signed integer. Change all uses to make it consistent. 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>
2008-01-31[NETFILTER]: nf_log: add netfilter gcc printf format checkingHelge Deller
Signed-off-by: Helge Deller <deller@gmx.de> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETNS][FRAGS]: Move ctl tables around.Pavel Emelyanov
This is a preparation for sysctl netns-ization. Move the ctl tables to the files, where the tuning variables reside. Plus make the helpers to register the tables. This will simplify the later patches and will keep similar things closer to each other. ipv4, ipv6 and conntrack_reasm are patched differently, but the result is all the tables are in appropriate files. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: nf_conntrack: remove print_conntrack function from l3protosPatrick McHardy
Its unused and unlikely to ever be used. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: nf_conntrack: clean up a few header filesPatrick McHardy
- Remove declarations of non-existing variables and functions - Move helper init/cleanup function declarations to nf_conntrack_helper.h - Remove unneeded __nf_conntrack_attach declaration and make it static Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: Use the ctl paths instead of hand-made analoguePavel Emelyanov
The conntracks subsystem has a similar infrastructure to maintain ctl_paths, but since we already have it on the generic level, I think it's OK to switch to using it. So, basically, this patch just replaces the ctl_table-s with ctl_path-s, nf_register_sysctl_table with register_sysctl_paths() and removes no longer needed code. After this the net/netfilter/nf_sysctl.c file contains the paths only. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Acked-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: Introduce nf_inet_addressJan Engelhardt
A few netfilter modules provide their own union of IPv4 and IPv6 address storage. Will unify that in this patch series. (1/4): Rename union nf_conntrack_address to union nf_inet_addr and move it to x_tables.h. 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>
2008-01-28[NETFILTER]: nf_log: constify struct nf_logger and nf_log_packet loginfo argPatrick McHardy
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: nf_log: move logging stuff to seperate headerPatrick McHardy
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: nf_nat: pass manip type instead of hook to nf_nat_setup_infoPatrick McHardy
nf_nat_setup_info gets the hook number and translates that to the manip type to perform. This is a relict from the time when one manip per hook could exist, the exact hook number doesn't matter anymore, its converted to the manip type. Most callers already know what kind of NAT they want to perform, so pass the maniptype in directly. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: nf_nat: mark NAT protocols constPatrick McHardy
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: nf_queue: move list_head/skb/id to struct nf_infoPatrick McHardy
Move common fields for queue management to struct nf_info and rename it to struct nf_queue_entry. The avoids one allocation/free per packet and simplifies the code a bit. Alternatively we could add some private room at the tail, but since all current users use identical structs this seems easier. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: nf_queue: move queueing related functions/struct to seperate headerPatrick McHardy
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: x_tables: add RATEEST targetPatrick McHardy
Add new rate estimator target (using gen_estimator). In combination with the rateest match (next patch) this can be used for load-based multipath routing. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: Introduce NF_INET_ hook valuesPatrick McHardy
The IPv4 and IPv6 hook values are identical, yet some code tries to figure out the "correct" value by looking at the address family. Introduce NF_INET_* values for both IPv4 and IPv6. The old values are kept in a #ifndef __KERNEL__ section for userspace compatibility. Signed-off-by: Patrick McHardy <kaber@trash.net> Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-23 04:41:30 +0000