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net: Use flowi4 and flowi6 in xfrm layer.

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Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller
2011-03-12 02:42:11 -05:00
parent 2032656e76
commit 7e1dc7b6f7
6 changed files with 89 additions and 76 deletions
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46
net/ipv4/xfrm4_policy.c
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@@ -56,7 +56,7 @@ static int xfrm4_get_saddr(struct net *net,
static int xfrm4_get_tos(const struct flowi *fl)
{
return IPTOS_RT_MASK & fl->fl4_tos; /* Strip ECN bits */
return IPTOS_RT_MASK & fl->u.ip4.flowi4_tos; /* Strip ECN bits */
}
static int xfrm4_init_path(struct xfrm_dst *path, struct dst_entry *dst,
@@ -69,13 +69,14 @@ static int xfrm4_fill_dst(struct xfrm_dst *xdst, struct net_device *dev,
const struct flowi *fl)
{
struct rtable *rt = (struct rtable *)xdst->route;
const struct flowi4 *fl4 = &fl->u.ip4;
rt->rt_key_dst = fl->fl4_dst;
rt->rt_key_src = fl->fl4_src;
rt->rt_tos = fl->fl4_tos;
rt->rt_iif = fl->flowi_iif;
rt->rt_oif = fl->flowi_oif;
rt->rt_mark = fl->flowi_mark;
rt->rt_key_dst = fl4->daddr;
rt->rt_key_src = fl4->saddr;
rt->rt_tos = fl4->flowi4_tos;
rt->rt_iif = fl4->flowi4_iif;
rt->rt_oif = fl4->flowi4_oif;
rt->rt_mark = fl4->flowi4_mark;
xdst->u.dst.dev = dev;
dev_hold(dev);
@@ -102,9 +103,10 @@ _decode_session4(struct sk_buff *skb, struct flowi *fl, int reverse)
{
struct iphdr *iph = ip_hdr(skb);
u8 *xprth = skb_network_header(skb) + iph->ihl * 4;
struct flowi4 *fl4 = &fl->u.ip4;
memset(fl, 0, sizeof(struct flowi));
fl->flowi_mark = skb->mark;
memset(fl4, 0, sizeof(struct flowi4));
fl4->flowi4_mark = skb->mark;
if (!(iph->frag_off & htons(IP_MF | IP_OFFSET))) {
switch (iph->protocol) {
@@ -117,8 +119,8 @@ _decode_session4(struct sk_buff *skb, struct flowi *fl, int reverse)
pskb_may_pull(skb, xprth + 4 - skb->data)) {
__be16 *ports = (__be16 *)xprth;
fl->fl4_sport = ports[!!reverse];
fl->fl4_dport = ports[!reverse];
fl4->uli.ports.sport = ports[!!reverse];
fl4->uli.ports.dport = ports[!reverse];
}
break;
@@ -126,8 +128,8 @@ _decode_session4(struct sk_buff *skb, struct flowi *fl, int reverse)
if (pskb_may_pull(skb, xprth + 2 - skb->data)) {
u8 *icmp = xprth;
fl->fl4_icmp_type = icmp[0];
fl->fl4_icmp_code = icmp[1];
fl4->uli.icmpt.type = icmp[0];
fl4->uli.icmpt.code = icmp[1];
}
break;
@@ -135,7 +137,7 @@ _decode_session4(struct sk_buff *skb, struct flowi *fl, int reverse)
if (pskb_may_pull(skb, xprth + 4 - skb->data)) {
__be32 *ehdr = (__be32 *)xprth;
fl->fl4_ipsec_spi = ehdr[0];
fl4->uli.spi = ehdr[0];
}
break;
@@ -143,7 +145,7 @@ _decode_session4(struct sk_buff *skb, struct flowi *fl, int reverse)
if (pskb_may_pull(skb, xprth + 8 - skb->data)) {
__be32 *ah_hdr = (__be32*)xprth;
fl->fl4_ipsec_spi = ah_hdr[1];
fl4->uli.spi = ah_hdr[1];
}
break;
@@ -151,7 +153,7 @@ _decode_session4(struct sk_buff *skb, struct flowi *fl, int reverse)
if (pskb_may_pull(skb, xprth + 4 - skb->data)) {
__be16 *ipcomp_hdr = (__be16 *)xprth;
fl->fl4_ipsec_spi = htonl(ntohs(ipcomp_hdr[1]));
fl4->uli.spi = htonl(ntohs(ipcomp_hdr[1]));
}
break;
@@ -163,20 +165,20 @@ _decode_session4(struct sk_buff *skb, struct flowi *fl, int reverse)
if (greflags[0] & GRE_KEY) {
if (greflags[0] & GRE_CSUM)
gre_hdr++;
fl->fl4_gre_key = gre_hdr[1];
fl4->uli.gre_key = gre_hdr[1];
}
}
break;
default:
fl->fl4_ipsec_spi = 0;
fl4->uli.spi = 0;
break;
}
}
fl->flowi_proto = iph->protocol;
fl->fl4_dst = reverse ? iph->saddr : iph->daddr;
fl->fl4_src = reverse ? iph->daddr : iph->saddr;
fl->fl4_tos = iph->tos;
fl4->flowi4_proto = iph->protocol;
fl4->daddr = reverse ? iph->saddr : iph->daddr;
fl4->saddr = reverse ? iph->daddr : iph->saddr;
fl4->flowi4_tos = iph->tos;
}
static inline int xfrm4_garbage_collect(struct dst_ops *ops)