ipv6: Introduce ip6_flowinfo() to extract flowinfo (tclass + flowlabel).
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -555,6 +555,11 @@ static inline void ip6_flow_hdr(struct ipv6hdr *hdr, unsigned int tclass,
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*(__be32 *)hdr = ntohl(0x60000000 | (tclass << 20)) | flowlabel;
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}
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static inline __be32 ip6_flowinfo(const struct ipv6hdr *hdr)
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{
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return *(__be32 *)hdr & IPV6_FLOWINFO_MASK;
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}
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/*
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* Prototypes exported by ipv6
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*/
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@ -360,7 +360,7 @@ int ipv6_recv_error(struct sock *sk, struct msghdr *msg, int len)
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struct ipv6hdr, daddr);
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sin->sin6_addr = ip6h->daddr;
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if (np->sndflow)
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sin->sin6_flowinfo = *(__be32 *)ip6h & IPV6_FLOWINFO_MASK;
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sin->sin6_flowinfo = ip6_flowinfo(ip6h);
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if (ipv6_addr_type(&sin->sin6_addr) & IPV6_ADDR_LINKLOCAL)
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sin->sin6_scope_id = IP6CB(skb)->iif;
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} else {
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@ -491,8 +491,9 @@ int datagram_recv_ctl(struct sock *sk, struct msghdr *msg, struct sk_buff *skb)
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put_cmsg(msg, SOL_IPV6, IPV6_TCLASS, sizeof(tclass), &tclass);
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}
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if (np->rxopt.bits.rxflow && (*(__be32 *)nh & IPV6_FLOWINFO_MASK)) {
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__be32 flowinfo = *(__be32 *)nh & IPV6_FLOWINFO_MASK;
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if (np->rxopt.bits.rxflow) {
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__be32 flowinfo = ip6_flowinfo((struct ipv6hdr *)nh);
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if (flowinfo)
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put_cmsg(msg, SOL_IPV6, IPV6_FLOWINFO, sizeof(flowinfo), &flowinfo);
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}
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@ -994,7 +994,7 @@ void ip6_route_input(struct sk_buff *skb)
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.flowi6_iif = skb->dev->ifindex,
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.daddr = iph->daddr,
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.saddr = iph->saddr,
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.flowlabel = (* (__be32 *) iph) & IPV6_FLOWINFO_MASK,
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.flowlabel = ip6_flowinfo(iph),
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.flowi6_mark = skb->mark,
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.flowi6_proto = iph->nexthdr,
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};
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@ -1159,7 +1159,7 @@ void ip6_update_pmtu(struct sk_buff *skb, struct net *net, __be32 mtu,
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fl6.flowi6_flags = 0;
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fl6.daddr = iph->daddr;
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fl6.saddr = iph->saddr;
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fl6.flowlabel = (*(__be32 *) iph) & IPV6_FLOWINFO_MASK;
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fl6.flowlabel = ip6_flowinfo(iph);
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dst = ip6_route_output(net, NULL, &fl6);
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if (!dst->error)
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@ -1187,7 +1187,7 @@ void ip6_redirect(struct sk_buff *skb, struct net *net, int oif, u32 mark)
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fl6.flowi6_flags = 0;
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fl6.daddr = iph->daddr;
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fl6.saddr = iph->saddr;
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fl6.flowlabel = (*(__be32 *) iph) & IPV6_FLOWINFO_MASK;
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fl6.flowlabel = ip6_flowinfo(iph);
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dst = ip6_route_output(net, NULL, &fl6);
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if (!dst->error)
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