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authorMat Martineau <mathew.j.martineau@linux.intel.com>2017-11-10 14:03:51 -0800
committerDavid S. Miller <davem@davemloft.net>2017-11-11 22:09:40 +0900
commit39b175211053c7a6a4d794c42e225994f1c069c2 (patch)
tree26153bc41702abdae3a4e74333aab588d4b5f886 /net/ipv6/output_core.c
parent973573c49905a2dc2ef07d4395aa0e4b44fb099d (diff)
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net: Remove unused skb_shared_info member
ip6_frag_id was only used by UFO, which has been removed. ipv6_proxy_select_ident() only existed to set ip6_frag_id and has no in-tree callers. Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/output_core.c')
-rw-r--r--net/ipv6/output_core.c31
1 files changed, 0 insertions, 31 deletions
diff --git a/net/ipv6/output_core.c b/net/ipv6/output_core.c
index a338bbc33cf3..4a7e5ffa5108 100644
--- a/net/ipv6/output_core.c
+++ b/net/ipv6/output_core.c
@@ -31,37 +31,6 @@ static u32 __ipv6_select_ident(struct net *net, u32 hashrnd,
return id;
}
-/* This function exists only for tap drivers that must support broken
- * clients requesting UFO without specifying an IPv6 fragment ID.
- *
- * This is similar to ipv6_select_ident() but we use an independent hash
- * seed to limit information leakage.
- *
- * The network header must be set before calling this.
- */
-void ipv6_proxy_select_ident(struct net *net, struct sk_buff *skb)
-{
- static u32 ip6_proxy_idents_hashrnd __read_mostly;
- struct in6_addr buf[2];
- struct in6_addr *addrs;
- u32 id;
-
- addrs = skb_header_pointer(skb,
- skb_network_offset(skb) +
- offsetof(struct ipv6hdr, saddr),
- sizeof(buf), buf);
- if (!addrs)
- return;
-
- net_get_random_once(&ip6_proxy_idents_hashrnd,
- sizeof(ip6_proxy_idents_hashrnd));
-
- id = __ipv6_select_ident(net, ip6_proxy_idents_hashrnd,
- &addrs[1], &addrs[0]);
- skb_shinfo(skb)->ip6_frag_id = htonl(id);
-}
-EXPORT_SYMBOL_GPL(ipv6_proxy_select_ident);
-
__be32 ipv6_select_ident(struct net *net,
const struct in6_addr *daddr,
const struct in6_addr *saddr)