Re: Patch?: linux-2.5.45/net/ipv4/netfilter dst.pmtu compilation fixes

From: Loic Jaquemet (ljaquemet@gatwick.westerngeco.slb.com)
Date: Fri Nov 01 2002 - 09:34:40 EST


also see
http://marc.theaimsgroup.com/?l=linux-kernel&m=103614599321384&w=1

linux-2.5.45 appears to have replaced dst_entry.pmtu with
dst_entry.metrics[RTAX_PMTU] and created a helper function
dst_pmtu(struct dst_entry*), presumably to simplify future changes
like this one. Now the
files compile. That is as much as I have tested.

 I am not currently familiar with this code, so I could easily
have misunderstood something in this patch.

--- linux-2.5.45.orig/net/ipv4/netfilter/ipt_TCPMSS.c 2002-10-31
01:42:56.000000000 +0100
+++ linux-2.5.45/net/ipv4/netfilter/ipt_TCPMSS.c 2002-11-01
15:18:12.000000000 +0100
@@ -85,14 +85,14 @@
                        return NF_DROP; /* or IPT_CONTINUE ?? */
                }

- if((*pskb)->dst->pmtu <= (sizeof(struct iphdr) +
sizeof(struct tcphdr))) {
+ if( dst_pmtu( (*pskb)->dst ) <= (sizeof(struct iphdr) +
sizeof(struct tcphdr))) {
                        if (net_ratelimit())
                                printk(KERN_ERR
- "ipt_tcpmss_target: unknown or
invalid path-MTU (%d)\n", (*pskb)->dst->pmtu);
+ "ipt_tcpmss_target: unknown or
invalid path-MTU (%d)\n", dst_pmtu( (*pskb)->dst ) );
                        return NF_DROP; /* or IPT_CONTINUE ?? */
                }

- newmss = (*pskb)->dst->pmtu - sizeof(struct iphdr) -
sizeof(struct tcphdr);
+ newmss = dst_pmtu( (*pskb)->dst ) - sizeof(struct iphdr)
- sizeof(struct tcphdr);
        } else
                newmss = tcpmssinfo->mss;

--
+----------------------------------------------+
|Jaquemet Loic                                 |
|Intern in WesternGeco, Schlumberger in Gatwick|
|Phone: 44-(0)1293-55-6876                     |
|Eleve ingenieur en informatique FIIFO, ORSAY  |
+----------------------------------------------+
http://sourceforge.net/projects/ffss/
#wirelessfr @ irc.freenode.net

- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/



This archive was generated by hypermail 2b29 : Thu Nov 07 2002 - 22:00:20 EST