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authorLinus Torvalds <torvalds@linux-foundation.org>2010-05-20 21:04:44 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-05-20 21:04:44 -0700
commitf8965467f366fd18f01feafb5db10512d7b4422c (patch)
tree3706a9cd779859271ca61b85c63a1bc3f82d626e /net/netfilter/xt_connlimit.c
parentMerge branch 'docs-next' of git://git.lwn.net/linux-2.6 (diff)
parentMerge branch 'master' of /home/davem/src/GIT/linux-2.6/ (diff)
downloadwireguard-linux-f8965467f366fd18f01feafb5db10512d7b4422c.tar.xz
wireguard-linux-f8965467f366fd18f01feafb5db10512d7b4422c.zip
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1674 commits) qlcnic: adding co maintainer ixgbe: add support for active DA cables ixgbe: dcb, do not tag tc_prio_control frames ixgbe: fix ixgbe_tx_is_paused logic ixgbe: always enable vlan strip/insert when DCB is enabled ixgbe: remove some redundant code in setting FCoE FIP filter ixgbe: fix wrong offset to fc_frame_header in ixgbe_fcoe_ddp ixgbe: fix header len when unsplit packet overflows to data buffer ipv6: Never schedule DAD timer on dead address ipv6: Use POSTDAD state ipv6: Use state_lock to protect ifa state ipv6: Replace inet6_ifaddr->dead with state cxgb4: notify upper drivers if the device is already up when they load cxgb4: keep interrupts available when the ports are brought down cxgb4: fix initial addition of MAC address cnic: Return SPQ credit to bnx2x after ring setup and shutdown. cnic: Convert cnic_local_flags to atomic ops. can: Fix SJA1000 command register writes on SMP systems bridge: fix build for CONFIG_SYSFS disabled ARCNET: Limit com20020 PCI ID matches for SOHARD cards ... Fix up various conflicts with pcmcia tree drivers/net/ {pcmcia/3c589_cs.c, wireless/orinoco/orinoco_cs.c and wireless/orinoco/spectrum_cs.c} and feature removal (Documentation/feature-removal-schedule.txt). Also fix a non-content conflict due to pm_qos_requirement getting renamed in the PM tree (now pm_qos_request) in net/mac80211/scan.c
Diffstat (limited to 'net/netfilter/xt_connlimit.c')
-rw-r--r--net/netfilter/xt_connlimit.c24
1 files changed, 13 insertions, 11 deletions
diff --git a/net/netfilter/xt_connlimit.c b/net/netfilter/xt_connlimit.c
index 388ca4596098..5c5b6b921b84 100644
--- a/net/netfilter/xt_connlimit.c
+++ b/net/netfilter/xt_connlimit.c
@@ -5,13 +5,13 @@
* Nov 2002: Martin Bene <martin.bene@icomedias.com>:
* only ignore TIME_WAIT or gone connections
* (C) CC Computer Consultants GmbH, 2007
- * Contact: <jengelh@computergmbh.de>
*
* based on ...
*
* Kernel module to match connection tracking information.
* GPL (C) 1999 Rusty Russell (rusty@rustcorp.com.au).
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/in.h>
#include <linux/in6.h>
#include <linux/ip.h>
@@ -173,7 +173,7 @@ static int count_them(struct net *net,
}
static bool
-connlimit_mt(const struct sk_buff *skb, const struct xt_match_param *par)
+connlimit_mt(const struct sk_buff *skb, struct xt_action_param *par)
{
struct net *net = dev_net(par->in ? par->in : par->out);
const struct xt_connlimit_info *info = par->matchinfo;
@@ -206,44 +206,46 @@ connlimit_mt(const struct sk_buff *skb, const struct xt_match_param *par)
if (connections < 0) {
/* kmalloc failed, drop it entirely */
- *par->hotdrop = true;
+ par->hotdrop = true;
return false;
}
return (connections > info->limit) ^ info->inverse;
hotdrop:
- *par->hotdrop = true;
+ par->hotdrop = true;
return false;
}
-static bool connlimit_mt_check(const struct xt_mtchk_param *par)
+static int connlimit_mt_check(const struct xt_mtchk_param *par)
{
struct xt_connlimit_info *info = par->matchinfo;
unsigned int i;
+ int ret;
if (unlikely(!connlimit_rnd_inited)) {
get_random_bytes(&connlimit_rnd, sizeof(connlimit_rnd));
connlimit_rnd_inited = true;
}
- if (nf_ct_l3proto_try_module_get(par->family) < 0) {
- printk(KERN_WARNING "cannot load conntrack support for "
- "address family %u\n", par->family);
- return false;
+ ret = nf_ct_l3proto_try_module_get(par->family);
+ if (ret < 0) {
+ pr_info("cannot load conntrack support for "
+ "address family %u\n", par->family);
+ return ret;
}
/* init private data */
info->data = kmalloc(sizeof(struct xt_connlimit_data), GFP_KERNEL);
if (info->data == NULL) {
nf_ct_l3proto_module_put(par->family);
- return false;
+ return -ENOMEM;
}
spin_lock_init(&info->data->lock);
for (i = 0; i < ARRAY_SIZE(info->data->iphash); ++i)
INIT_LIST_HEAD(&info->data->iphash[i]);
- return true;
+ return 0;
}
static void connlimit_mt_destroy(const struct xt_mtdtor_param *par)