Cross Reference: /net/bridge/netfilter/ebtables.c

History log of /net/bridge/netfilter/ebtables.c
Revision	Date	Author	Comments
c55fbbb4a730e3d6e1727b7de08b39e6cd847fad	08-Sep-2014	Nicolas Dichtel <nicolas.dichtel@6wind.com>	netfilter: ebtables: create audit records for replaces This is already done for x_tables (family AF_INET and AF_INET6), let's do it for AF_BRIDGE also. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
7926dbfa4bc14e27f4e18a6184a031a1c1e077dc	31-Jul-2014	Pablo Neira Ayuso <pablo@netfilter.org>	netfilter: don't use mutex_lock_interruptible() Eric Dumazet reports that getsockopt() or setsockopt() sometimes returns -EINTR instead of -ENOPROTOOPT, causing headaches to application developers. This patch replaces all the mutex_lock_interruptible() by mutex_lock() in the netfilter tree, as there is no reason we should sleep for a long time there. Reported-by: Eric Dumazet <edumazet@google.com> Suggested-by: Patrick McHardy <kaber@trash.net> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Acked-by: Julian Anastasov <ja@ssi.bg>
c58dd2dd443c26d856a168db108a0cd11c285bf3	04-Apr-2014	Thomas Graf <tgraf@suug.ch>	netfilter: Can't fail and free after table replacement All xtables variants suffer from the defect that the copy_to_user() to copy the counters to user memory may fail after the table has already been exchanged and thus exposed. Return an error at this point will result in freeing the already exposed table. Any subsequent packet processing will result in a kernel panic. We can't copy the counters before exposing the new tables as we want provide the counter state after the old table has been unhooked. Therefore convert this into a silent error. Cc: Florian Westphal <fw@strlen.de> Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
97ad8b53e6495a25cbc4d10c0a407c7db1ceeea6	19-Dec-2013	tanxiaojun <tanxiaojun@huawei.com>	bridge: change the position of '{' to the pre line That open brace { should be on the previous line. Signed-off-by: Tan Xiaojun <tanxiaojun@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
31a5b837c2e0d282f36d06a2b96f16d97464fd68	19-Dec-2013	tanxiaojun <tanxiaojun@huawei.com>	bridge: add space before '(/{', after ',', etc. Spaces required before the open parenthesis '(', before the open brace '{', after that ',' and around that '?/:'. Signed-off-by: Tan Xiaojun <tanxiaojun@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
a97bfc1d1f2b4496d01fda34fc546451f1c02bf5	19-Dec-2013	tanxiaojun <tanxiaojun@huawei.com>	bridge: remove unnecessary parentheses Return is not a function, parentheses are not required. Signed-off-by: Tan Xiaojun <tanxiaojun@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
8bc14d25ffb9dfc242d3a877bb4fe683adb27692	17-May-2013	Chen Gang <gang.chen@asianux.com>	bridge: netfilter: using strlcpy() instead of strncpy() 'name' has already set all zero when it is defined, so not need let strncpy() to pad it again. 'name' is a string, better always let is NUL terminated, so use strlcpy() instead of strncpy(). Signed-off-by: Chen Gang <gang.chen@asianux.com> Acked-by: Bart De Schuymer <bdschuym@pandora.be> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
e5c5d22e8dcf7c2d430336cbf8e180bd38e8daf1	28-Mar-2013	Simon Horman <horms@verge.net.au>	net: add ETH_P_802_3_MIN Add a new constant ETH_P_802_3_MIN, the minimum ethernet type for an 802.3 frame. Frames with a lower value in the ethernet type field are Ethernet II. Also update all the users of this value that David Miller and I could find to use the new constant. Also correct a bug in util.c. The comparison with ETH_P_802_3_MIN should be >= not >. As suggested by Jesse Gross. Compile tested only. Cc: David Miller <davem@davemloft.net> Cc: Jesse Gross <jesse@nicira.com> Cc: Karsten Keil <isdn@linux-pingi.de> Cc: John W. Linville <linville@tuxdriver.com> Cc: Johannes Berg <johannes@sipsolutions.net> Cc: Bart De Schuymer <bart.de.schuymer@pandora.be> Cc: Stephen Hemminger <stephen@networkplumber.org> Cc: Patrick McHardy <kaber@trash.net> Cc: Marcel Holtmann <marcel@holtmann.org> Cc: Gustavo Padovan <gustavo@padovan.org> Cc: Johan Hedberg <johan.hedberg@gmail.com> Cc: linux-bluetooth@vger.kernel.org Cc: netfilter-devel@vger.kernel.org Cc: bridge@lists.linux-foundation.org Cc: linux-wireless@vger.kernel.org Cc: linux1394-devel@lists.sourceforge.net Cc: linux-media@vger.kernel.org Cc: netdev@vger.kernel.org Cc: dev@openvswitch.org Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com> Acked-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by: Simon Horman <horms@verge.net.au> Signed-off-by: David S. Miller <davem@davemloft.net>
bb12b8b26e197b21e3f28d5401bfee6f86a8d633	31-Jan-2013	Gao feng <gaofeng@cn.fujitsu.com>	netns: ebtable: allow unprivileged users to operate ebtables ebt_table is a private resource of netns, operating ebtables in one netns will not affect other netns, we can allow the creator user of userns and netns to change the ebtables. Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
a157b9d5b5b626e46eba2ac4e342da8db25cabc4	06-Mar-2012	Pablo Neira Ayuso <pablo@netfilter.org>	netfilter: bridge: fix wrong pointer dereference In adf7ff8, a invalid dereference was added in ebt_make_names. CC [M] net/bridge/netfilter/ebtables.o net/bridge/netfilter/ebtables.c: In function `ebt_make_names': net/bridge/netfilter/ebtables.c:1371:20: warning: `t' may be used uninitialized in this function [-Wuninitialized] Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: David S. Miller <davem@davemloft.net>
848edc69192a38bf9d261032f248b14f47e6af8b	06-Mar-2012	Santosh Nayak <santoshprasadnayak@gmail.com>	netfilter: ebtables: fix wrong name length while copying to user-space user-space ebtables expects 32 bytes-long names, but xt_match names use 29 bytes. We have to copy less 29 bytes and then, make sure we fill the remaining bytes with zeroes. Signed-off-by: Santosh Nayak <santoshprasadnayak@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: David S. Miller <davem@davemloft.net>
e899b1119f1428f2b04dd7e9dba94864c33dd30b	22-Feb-2012	Florian Westphal <fw@strlen.de>	netfilter: bridge: fix module autoload in compat case We expected 0 if module doesn't exist, which is no longer the case (42046e2e45c109ba703993c510401a11f716c8df, netfilter: x_tables: return -ENOENT for non-existant matches/targets). Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
5189054dd7ff18576446edc270b6b69fa8285336	11-Aug-2011	Julia Lawall <julia@diku.dk>	net/bridge/netfilter/ebtables.c: use available error handling code Free the locally allocated table and newinfo as done in adjacent error handling code. Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: David S. Miller <davem@davemloft.net>
97242c85a2c8160eac5a6e945209b5b6ae8ab5a3	20-May-2011	David Miller <davem@davemloft.net>	netfilter: Fix several warnings in compat_mtw_from_user(). Kill set but not used 'entry_offset'. Add a default case to the switch statement so the compiler can see that we always initialize off and size_kern before using them. Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
103a9778e07bcc0cd34b5c35a87281454eec719e	21-Apr-2011	Florian Westphal <fw@strlen.de>	netfilter: ebtables: only call xt_compat_add_offset once per rule The optimizations in commit 255d0dc34068a976 (netfilter: x_table: speedup compat operations) assume that xt_compat_add_offset is called once per rule. ebtables however called it for each match/target found in a rule. The match/watcher/target parser already returns the needed delta, so it is sufficient to move the xt_compat_add_offset call to a more reasonable location. While at it, also get rid of the unused COMPAT iterator macros. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Patrick McHardy <kaber@trash.net>
5a6351eecf8c87afed9c883bb6341d09406d74ba	21-Apr-2011	Eric Dumazet <eric.dumazet@gmail.com>	netfilter: fix ebtables compat support commit 255d0dc34068a976 (netfilter: x_table: speedup compat operations) made ebtables not working anymore. 1) xt_compat_calc_jump() is not an exact match lookup 2) compat_table_info() has a typo in xt_compat_init_offsets() call 3) compat_do_replace() misses a xt_compat_init_offsets() call Reported-by: dann frazier <dannf@dannf.org> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
e31b2b228439eee23b8ccc186d3c0e77bd69123b	21-Apr-2011	Florian Westphal <fw@strlen.de>	netfilter: ebtables: only call xt_compat_add_offset once per rule The optimizations in commit 255d0dc34068a976 (netfilter: x_table: speedup compat operations) assume that xt_compat_add_offset is called once per rule. ebtables however called it for each match/target found in a rule. The match/watcher/target parser already returns the needed delta, so it is sufficient to move the xt_compat_add_offset call to a more reasonable location. While at it, also get rid of the unused COMPAT iterator macros. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Patrick McHardy <kaber@trash.net>
954d70388307eb1ccb328d9f960657022a316243	21-Apr-2011	Eric Dumazet <eric.dumazet@gmail.com>	netfilter: fix ebtables compat support commit 255d0dc34068a976 (netfilter: x_table: speedup compat operations) made ebtables not working anymore. 1) xt_compat_calc_jump() is not an exact match lookup 2) compat_table_info() has a typo in xt_compat_init_offsets() call 3) compat_do_replace() misses a xt_compat_init_offsets() call Reported-by: dann frazier <dannf@dannf.org> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
d846f71195d57b0bbb143382647c2c6638b04c5a	14-Feb-2011	Vasiliy Kulikov <segoon@openwall.com>	bridge: netfilter: fix information leak Struct tmp is copied from userspace. It is not checked whether the "name" field is NULL terminated. This may lead to buffer overflow and passing contents of kernel stack as a module name to try_then_request_module() and, consequently, to modprobe commandline. It would be seen by all userspace processes. Signed-off-by: Vasiliy Kulikov <segoon@openwall.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
255d0dc34068a976550ce555e153c0bfcfec7cc6	18-Dec-2010	Eric Dumazet <eric.dumazet@gmail.com>	netfilter: x_table: speedup compat operations One iptables invocation with 135000 rules takes 35 seconds of cpu time on a recent server, using a 32bit distro and a 64bit kernel. We eventually trigger NMI/RCU watchdog. INFO: rcu_sched_state detected stall on CPU 3 (t=6000 jiffies) COMPAT mode has quadratic behavior and consume 16 bytes of memory per rule. Switch the xt_compat algos to use an array instead of list, and use a binary search to locate an offset in the sorted array. This halves memory need (8 bytes per rule), and removes quadratic behavior [ O(NN) -> O(Nlog2(N)) ] Time of iptables goes from 35 s to 150 ms. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
1a9180a20f3a314fda3e96b77570cad3864b2896	03-Jan-2011	Tomas Winkler <tomas.winkler@intel.com>	net/bridge: fix trivial sparse errors net/bridge//br_stp_if.c:148:66: warning: conversion of net/bridge//br_stp_if.c:148:66: int to net/bridge//br_stp_if.c:148:66: int enum umh_wait net/bridge//netfilter/ebtables.c:1150:30: warning: Using plain integer as NULL pointer Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
b5ed54e94d324f17c97852296d61a143f01b227a	15-Nov-2010	stephen hemminger <shemminger@vyatta.com>	bridge: fix RCU races with bridge port The macro br_port_exists() is not enough protection when only RCU is being used. There is a tiny race where other CPU has cleared port handler hook, but is bridge port flag might still be set. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
13937911f93ef52ae652f4652761aea6a58d3193	20-Oct-2010	Jesse Gross <jesse@nicira.com>	ebtables: Allow filtering of hardware accelerated vlan frames. An upcoming commit will allow packets with hardware vlan acceleration information to be passed though more parts of the network stack, including packets trunked through the bridge. This adds support for matching and filtering those packets through ebtables. Signed-off-by: Jesse Gross <jesse@nicira.com> Signed-off-by: David S. Miller <davem@davemloft.net>
a53f4b61a76a7e95139b8e8abba02e9bfe87a58a	01-Jul-2010	Paul E. McKenney <paulmck@linux.vnet.ibm.com>	Revert "net: Make accesses to ->br_port safe for sparse RCU" This reverts commit 81bdf5bd7349bd4523538cbd7878f334bc2bfe14, which is obsoleted by commit f350a0a87374 from the net tree.
f350a0a87374418635689471606454abc7beaa3a	15-Jun-2010	Jiri Pirko <jpirko@redhat.com>	bridge: use rx_handler_data pointer to store net_bridge_port pointer Register net_bridge_port pointer as rx_handler data pointer. As br_port is removed from struct net_device, another netdev priv_flag is added to indicate the device serves as a bridge port. Also rcuized pointers are now correctly dereferenced in br_fdb.c and in netfilter parts. Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
81bdf5bd7349bd4523538cbd7878f334bc2bfe14	03-May-2010	Paul E. McKenney <paulmck@linux.vnet.ibm.com>	net: Make accesses to ->br_port safe for sparse RCU The new versions of the rcu_dereference() APIs requires that any pointers passed to one of these APIs be fully defined. The ->br_port field in struct net_device points to a struct net_bridge_port, which is an incomplete type. This commit therefore changes ->br_port to be a void*, and introduces a br_port() helper function to convert the type to struct net_bridge_port, and applies this new helper function where required. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: David Miller <davem@davemloft.net> Cc: Stephen Hemminger <shemminger@linux-foundation.org> Cc: Eric Dumazet <eric.dumazet@gmail.com>
b4ba26119b06052888696491f614201817491a0d	07-Jul-2009	Jan Engelhardt <jengelh@medozas.de>	netfilter: xtables: change hotdrop pointer to direct modification Since xt_action_param is writable, let's use it. The pointer to 'bool hotdrop' always worried (8 bytes (64-bit) to write 1 byte!). Surprisingly results in a reduction in size: text data bss filename 5457066 692730 357892 vmlinux.o-prev 5456554 692730 357892 vmlinux.o Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
de74c16996287250f0d947663127f80c6beebd3c	05-Jul-2009	Jan Engelhardt <jengelh@medozas.de>	netfilter: xtables: combine struct xt_match_param and xt_target_param The structures carried - besides match/target - almost the same data. It is possible to combine them, as extensions are evaluated serially, and so, the callers end up a little smaller. text data bss filename -15318 740 104 net/ipv4/netfilter/ip_tables.o +15286 740 104 net/ipv4/netfilter/ip_tables.o -15333 540 152 net/ipv6/netfilter/ip6_tables.o +15269 540 152 net/ipv6/netfilter/ip6_tables.o Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
5a0e3ad6af8660be21ca98a971cd00f331318c05	24-Mar-2010	Tejun Heo <tj@kernel.org>	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
fd0ec0e6216baea854465bbdb177f2d1b2ccaf22	10-Jul-2009	Jan Engelhardt <jengelh@medozas.de>	netfilter: xtables: consolidate code into xt_request_find_match Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
d2a7b6bad2c38e41eddb0b24d03627d9e7aa3f7b	10-Jul-2009	Jan Engelhardt <jengelh@medozas.de>	netfilter: xtables: make use of xt_request_find_target Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
ff67e4e42bd178b1179c4d8e5c1fde18758ce84f	19-Mar-2010	Jan Engelhardt <jengelh@medozas.de>	netfilter: xt extensions: use pr_<level> (2) Supplement to 1159683ef48469de71dc26f0ee1a9c30d131cf89. Downgrade the log level to INFO for most checkentry messages as they are, IMO, just an extra information to the -EINVAL code that is returned as part of a parameter "constraint violation". Leave errors to real errors, such as being unable to create a LED trigger. Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
90b89af7e15143c8ea22f5c8818f5a2eec9e75c1	07-Feb-2010	Florian Westphal <fw@strlen.de>	netfilter: ebtables: try native set/getsockopt handlers, too ebtables can be compiled to perform userspace-side padding of structures. In that case, all the structures are already in the 'native' format expected by the kernel. This tries to determine what format the userspace program is using. For most set/getsockopts, this can be done by checking the len argument for sizeof(compat_ebt_replace) and re-trying the native handler on error. In case of EBT_SO_GET_ENTRIES, the native handler is tried first, it will error out early when checking the *len argument (the compat version has to defer this check until after iterating over the kernel data set once, to adjust for all the structure size differences). As this would cause error printks, remove those as well, as recommended by Bart de Schuymer. Signed-off-by: Florian Westphal <fw@strlen.de>
81e675c227ec60a0bdcbb547dc530ebee23ff931	05-Jan-2010	Florian Westphal <fwestphal@astaro.com>	netfilter: ebtables: add CONFIG_COMPAT support Main code for 32 bit userland ebtables binary with 64 bit kernels support. Tested on x86_64 kernel only, using 64bit ebtables binary for output comparision. At least ebt_mark, m_mark and ebt_limit need CONFIG_COMPAT hooks, too. remaining problem: The ebtables userland makefile has: ifeq ($(shell uname -m),sparc64) CFLAGS+=-DEBT_MIN_ALIGN=8 -DKERNEL_64_USERSPACE_32 endif struct ebt_replace, ebt_entry_match etc. then contain userland-side padding, i.e. even if we are called from a 32 bit userland, the structures may already be in the right format. This problem is addressed in a follow-up patch. Signed-off-by: Florian Westphal <fwestphal@astaro.com>
49facff9f92508413f3da598f86aaf6c1121ff27	07-Feb-2010	Florian Westphal <fw@strlen.de>	netfilter: ebtables: split update_counters into two functions allows to call do_update_counters() from upcoming CONFIG_COMPAT code instead of copy&pasting the same code. Signed-off-by: Florian Westphal <fw@strlen.de>
837395aa863142be7c38be0ca780aef21b12b49f	07-Feb-2010	Florian Westphal <fw@strlen.de>	netfilter: ebtables: split copy_everything_to_user into two functions once CONFIG_COMPAT support is added to ebtables, the new copy_counters_to_user function can be called instead of duplicating code. Also remove last use of MEMPRINT, as requested by Bart De Schuymer. Signed-off-by: Florian Westphal <fw@strlen.de>
e788759f44b29e5b1bc27a265dece7dcfa4234af	04-Feb-2010	Florian Westphal <fw@strlen.de>	netfilter: ebtables: split do_replace into two functions once CONFIG_COMPAT support is merged this allows to call do_replace_finish() after doing the CONFIG_COMPAT conversion instead of copy & pasting this. Signed-off-by: Florian Westphal <fw@strlen.de>
1756de262e41112a8a8927808eb2f03d21fd4786	15-Feb-2010	Florian Westphal <fwestphal@astaro.com>	netfilter: ebtables: abort if next_offset is too small next_offset must be > 0, otherwise this loops forever. The offset also contains the size of the ebt_entry structure itself, so anything smaller is invalid. Signed-off-by: Florian Westphal <fwestphal@astaro.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
d5d1baa15f5b05e9110403724d5dc72d6d541e04	26-Jun-2009	Jan Engelhardt <jengelh@medozas.de>	netfilter: xtables: add const qualifiers This should make it easier to remove redundant arguments later. Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
add67461240c1dadc7c8d97e66f8f92b556ca523	03-Feb-2010	Patrick McHardy <kaber@trash.net>	netfilter: add struct net * to target parameters Signed-off-by: Patrick McHardy <kaber@trash.net>