ip: make IP identifiers less predictable

[cascardo/linux.git] / net / ipv6 / ip6_output.c

diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index cb9df0e..45702b8 100644 (file)
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -545,6 +545,8 @@ static void ipv6_select_ident(struct frag_hdr *fhdr, struct rt6_info *rt)
        net_get_random_once(&ip6_idents_hashrnd, sizeof(ip6_idents_hashrnd));
 
        hash = __ipv6_addr_jhash(&rt->rt6i_dst.addr, ip6_idents_hashrnd);
+       hash = __ipv6_addr_jhash(&rt->rt6i_src.addr, hash);
+
        id = ip_idents_reserve(hash, 1);
        fhdr->identification = htonl(id);
 }