diff options
author | David S. Miller <davem@davemloft.net> | 2011-03-05 05:47:09 (GMT) |
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committer | David S. Miller <davem@davemloft.net> | 2011-03-05 05:55:31 (GMT) |
commit | 5e2b61f78411be25f0b84f97d5b5d312f184dfd1 (patch) | |
tree | 6a5faa5fb7a2242bebacba4cdb5722b988d3e909 /net/ipv4/ipmr.c | |
parent | 1018b5c01636c7c6bda31a719bda34fc631db29a (diff) | |
download | linux-5e2b61f78411be25f0b84f97d5b5d312f184dfd1.tar.xz |
ipv4: Remove flowi from struct rtable.
The only necessary parts are the src/dst addresses, the
interface indexes, the TOS, and the mark.
The rest is unnecessary bloat, which amounts to nearly
50 bytes on 64-bit.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/ipmr.c')
-rw-r--r-- | net/ipv4/ipmr.c | 52 |
1 files changed, 41 insertions, 11 deletions
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c index 26ca2f2..9d5f634 100644 --- a/net/ipv4/ipmr.c +++ b/net/ipv4/ipmr.c @@ -1813,12 +1813,22 @@ int ip_mr_input(struct sk_buff *skb) if (IPCB(skb)->flags & IPSKB_FORWARDED) goto dont_forward; - err = ipmr_fib_lookup(net, &skb_rtable(skb)->fl, &mrt); - if (err < 0) { - kfree_skb(skb); - return err; + { + struct rtable *rt = skb_rtable(skb); + struct flowi fl = { + .fl4_dst = rt->rt_key_dst, + .fl4_src = rt->rt_key_src, + .fl4_tos = rt->rt_tos, + .oif = rt->rt_oif, + .iif = rt->rt_iif, + .mark = rt->rt_mark, + }; + err = ipmr_fib_lookup(net, &fl, &mrt); + if (err < 0) { + kfree_skb(skb); + return err; + } } - if (!local) { if (IPCB(skb)->opt.router_alert) { if (ip_call_ra_chain(skb)) @@ -1946,9 +1956,19 @@ int pim_rcv_v1(struct sk_buff *skb) pim = igmp_hdr(skb); - if (ipmr_fib_lookup(net, &skb_rtable(skb)->fl, &mrt) < 0) - goto drop; - + { + struct rtable *rt = skb_rtable(skb); + struct flowi fl = { + .fl4_dst = rt->rt_key_dst, + .fl4_src = rt->rt_key_src, + .fl4_tos = rt->rt_tos, + .oif = rt->rt_oif, + .iif = rt->rt_iif, + .mark = rt->rt_mark, + }; + if (ipmr_fib_lookup(net, &fl, &mrt) < 0) + goto drop; + } if (!mrt->mroute_do_pim || pim->group != PIM_V1_VERSION || pim->code != PIM_V1_REGISTER) goto drop; @@ -1978,9 +1998,19 @@ static int pim_rcv(struct sk_buff *skb) csum_fold(skb_checksum(skb, 0, skb->len, 0)))) goto drop; - if (ipmr_fib_lookup(net, &skb_rtable(skb)->fl, &mrt) < 0) - goto drop; - + { + struct rtable *rt = skb_rtable(skb); + struct flowi fl = { + .fl4_dst = rt->rt_key_dst, + .fl4_src = rt->rt_key_src, + .fl4_tos = rt->rt_tos, + .oif = rt->rt_oif, + .iif = rt->rt_iif, + .mark = rt->rt_mark, + }; + if (ipmr_fib_lookup(net, &fl, &mrt) < 0) + goto drop; + } if (__pim_rcv(mrt, skb, sizeof(*pim))) { drop: kfree_skb(skb); |