From: Patrick McHardy <kaber@trash.net>
To: lartc@vger.kernel.org
Subject: Re: [LARTC] esfq hash type
Date: Tue, 17 Aug 2004 01:24:29 +0000 [thread overview]
Message-ID: <41215E4D.2050803@trash.net> (raw)
In-Reply-To: <1445027109.20040817024227@op.pl>
[-- Attachment #1: Type: text/plain, Size: 377 bytes --]
Marcin Sura wrote:
>Hi
>
> I have a small lan (10.0.0.0/8) behind my linux box. I use MASQUERADE to allow
> users connects to internet.
>
> I set up an esfq qdisc for outgoing traffic. And there is a little
> question. Does source hash type in esfq recognize NATed local ip's?
>
>
No, but with this little hack (against esfq-patched kernel) it does.
Regards
Patrick
[-- Attachment #2: linux-2.4.24-esfq-origsource.diff --]
[-- Type: text/x-patch, Size: 1093 bytes --]
diff -urN a/net/sched/sch_esfq.c b/net/sched/sch_esfq.c
--- a/net/sched/sch_esfq.c 2004-06-05 15:45:19.000000000 +0200
+++ b/net/sched/sch_esfq.c 2004-06-05 15:47:21.000000000 +0200
@@ -34,6 +34,7 @@
#include <linux/etherdevice.h>
#include <linux/notifier.h>
#include <linux/init.h>
+#include <linux/netfilter_ipv4/ip_conntrack.h>
#include <net/ip.h>
#include <linux/ipv6.h>
#include <net/route.h>
@@ -109,6 +110,18 @@
return h & (q->hash_divisor-1);
}
+static inline u32 esfq_get_source(struct sk_buff *skb)
+{
+ struct ip_conntrack *ct;
+ int dir;
+
+ if (skb->nfct == NULL)
+ return skb->nh.iph->saddr;
+ ct = (struct ip_conntrack *)skb->nfct->master;
+ dir = CTINFO2DIR(skb->nfct - ct->infos);
+ return ct->tuplehash[dir].tuple.src.ip;
+}
+
static unsigned esfq_hash(struct esfq_sched_data *q, struct sk_buff *skb)
{
u32 h, h2;
@@ -119,7 +132,7 @@
{
struct iphdr *iph = skb->nh.iph;
h = iph->daddr;
- hs = iph->saddr;
+ hs = esfq_get_source(skb);
h2 = hs^iph->protocol;
if (!(iph->frag_off&htons(IP_MF|IP_OFFSET)) &&
(iph->protocol == IPPROTO_TCP ||
next prev parent reply other threads:[~2004-08-17 1:24 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-08-17 0:42 [LARTC] esfq hash type Marcin Sura
2004-08-17 1:24 ` Patrick McHardy [this message]
2004-08-18 3:22 ` gypsy
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