[PATCH] cls_u32 u32_classify() +

[Dzianis Kahanovich]

Currently fine u32 "hashkey ... at ..." not work with relative offsets.
There are simpliest fix to use "eat".
(sorry, v2)

--
WBR,
Denis Kaganovich,  [EMAIL PROTECTED]  http://mahatma.bspu.unibel.by



diff -pruN linux-2.6.orig/net/sched/cls_u32.c linux-2.6/net/sched/cls_u32.c
--- linux-2.6.orig/net/sched/cls_u32.c  2008-01-29 23:02:50.000000000 +0200
+++ linux-2.6/net/sched/cls_u32.c       2008-01-30 11:28:00.000000000 +0200
@@ -181,11 +181,13 @@ check_terminal:
 
                ht = n->ht_down;
                sel = 0;
-               if (ht->divisor)
-                       sel = 
ht->divisor&u32_hash_fold(*(u32*)(ptr+n->sel.hoff), &n->sel,n->fshift);
 
-               if (!(n->sel.flags&(TC_U32_VAROFFSET|TC_U32_OFFSET|TC_U32_EAT)))
+               if 
(!(n->sel.flags&(TC_U32_VAROFFSET|TC_U32_OFFSET|TC_U32_EAT))) {
+                       if (!ht->divisor)
+                               goto next_ht;
+                       sel = 
ht->divisor&u32_hash_fold(*(u32*)(ptr+n->sel.hoff), &n->sel,n->fshift);
                        goto next_ht;
+               }
 
                if (n->sel.flags&(TC_U32_OFFSET|TC_U32_VAROFFSET)) {
                        off2 = n->sel.off + 3;
@@ -198,6 +200,9 @@ check_terminal:
                        off2 = 0;
                }
 
+               if (ht->divisor && ptr+n->sel.hoff < skb_tail_pointer(skb))
+                       sel = 
ht->divisor&u32_hash_fold(*(u32*)(ptr+n->sel.hoff), &n->sel,n->fshift);
+
                if (ptr < skb_tail_pointer(skb))
                        goto next_ht;
        }