[*v5 PATCH 3/7] IPVS: skb defrag in L7 helpers

[Hans Schillstrom <hans.schillstrom@xxxxxxxxxxxx>]

L7 helpers like sip needs skb defrag
since L7 data can be fragmented.

This patch requires "IPVS Break ports-2 into src_port and dst_port" patch

*v3
  Removed unneeded if (skb_shinfo(skb)->nr_frags)
  from Julian.

Signed-off-by: Hans Schillstrom <hans.schillstrom@xxxxxxxxxxxx>
---
 net/netfilter/ipvs/ip_vs_pe_sip.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/net/netfilter/ipvs/ip_vs_pe_sip.c 
b/net/netfilter/ipvs/ip_vs_pe_sip.c
index b8b4e96..0d83bc0 100644
--- a/net/netfilter/ipvs/ip_vs_pe_sip.c
+++ b/net/netfilter/ipvs/ip_vs_pe_sip.c
@@ -71,6 +71,7 @@ ip_vs_sip_fill_param(struct ip_vs_conn_param *p, struct 
sk_buff *skb)
        struct ip_vs_iphdr iph;
        unsigned int dataoff, datalen, matchoff, matchlen;
        const char *dptr;
+       int retc;
 
        ip_vs_fill_iphdr(p->af, skb_network_header(skb), &iph);
 
@@ -83,6 +84,8 @@ ip_vs_sip_fill_param(struct ip_vs_conn_param *p, struct 
sk_buff *skb)
        if (dataoff >= skb->len)
                return -EINVAL;
 
+       if ((retc=skb_linearize(skb)) < 0)
+               return retc;
        dptr = skb->data + dataoff;
        datalen = skb->len - dataoff;
 
-- 
1.7.2.3

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