vserver 2.0 rc7

[linux-2.6.git] / net / ipv6 / exthdrs_core.c

diff --git a/net/ipv6/exthdrs_core.c b/net/ipv6/exthdrs_core.c
index 6dda815..315bc1f 100644 (file)
--- a/net/ipv6/exthdrs_core.c
+++ b/net/ipv6/exthdrs_core.c
@@ -41,8 +41,8 @@ int ipv6_ext_hdr(u8 nexthdr)
  * when Linux implements ESP (and maybe AUTH) headers.
  * --AK
  *
- * This function parses (probably truncated) exthdr set "hdr"
- * of length "len". "nexthdrp" initially points to some place,
+ * This function parses (probably truncated) exthdr set "hdr".
+ * "nexthdrp" initially points to some place,
  * where type of the first header can be found.
  *
  * It skips all well-known exthdrs, and returns pointer to the start
@@ -63,7 +63,7 @@ int ipv6_ext_hdr(u8 nexthdr)
  * --ANK (980726)
  */
 
-int ipv6_skip_exthdr(const struct sk_buff *skb, int start, u8 *nexthdrp, int len)
+int ipv6_skip_exthdr(const struct sk_buff *skb, int start, u8 *nexthdrp)
 {
        u8 nexthdr = *nexthdrp;
 
@@ -71,13 +71,11 @@ int ipv6_skip_exthdr(const struct sk_buff *skb, int start, u8 *nexthdrp, int len
                struct ipv6_opt_hdr _hdr, *hp;
                int hdrlen;
 
-               if (len < (int)sizeof(struct ipv6_opt_hdr))
-                       return -1;
                if (nexthdr == NEXTHDR_NONE)
                        return -1;
                hp = skb_header_pointer(skb, start, sizeof(_hdr), &_hdr);
                if (hp == NULL)
-                       BUG();
+                       return -1;
                if (nexthdr == NEXTHDR_FRAGMENT) {
                        unsigned short _frag_off, *fp;
                        fp = skb_header_pointer(skb,
@@ -97,7 +95,6 @@ int ipv6_skip_exthdr(const struct sk_buff *skb, int start, u8 *nexthdrp, int len
                        hdrlen = ipv6_optlen(hp); 
 
                nexthdr = hp->nexthdr;
-               len -= hdrlen;
                start += hdrlen;
        }