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Diffstat (limited to 'net/ipv4/xfrm4_policy.c')
-rw-r--r--net/ipv4/xfrm4_policy.c74
1 files changed, 42 insertions, 32 deletions
diff --git a/net/ipv4/xfrm4_policy.c b/net/ipv4/xfrm4_policy.c
index b057d40adde..13e0e7f659f 100644
--- a/net/ipv4/xfrm4_policy.c
+++ b/net/ipv4/xfrm4_policy.c
@@ -19,25 +19,23 @@
static struct xfrm_policy_afinfo xfrm4_policy_afinfo;
static struct dst_entry *xfrm4_dst_lookup(struct net *net, int tos,
- xfrm_address_t *saddr,
- xfrm_address_t *daddr)
+ const xfrm_address_t *saddr,
+ const xfrm_address_t *daddr)
{
- struct flowi fl = {
- .fl4_dst = daddr->a4,
- .fl4_tos = tos,
+ struct flowi4 fl4 = {
+ .daddr = daddr->a4,
+ .flowi4_tos = tos,
};
- struct dst_entry *dst;
struct rtable *rt;
- int err;
if (saddr)
- fl.fl4_src = saddr->a4;
+ fl4.saddr = saddr->a4;
+
+ rt = __ip_route_output_key(net, &fl4);
+ if (!IS_ERR(rt))
+ return &rt->dst;
- err = __ip_route_output_key(net, &rt, &fl);
- dst = &rt->dst;
- if (err)
- dst = ERR_PTR(err);
- return dst;
+ return ERR_CAST(rt);
}
static int xfrm4_get_saddr(struct net *net,
@@ -56,9 +54,9 @@ static int xfrm4_get_saddr(struct net *net,
return 0;
}
-static int xfrm4_get_tos(struct flowi *fl)
+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,
@@ -68,11 +66,17 @@ static int xfrm4_init_path(struct xfrm_dst *path, struct dst_entry *dst,
}
static int xfrm4_fill_dst(struct xfrm_dst *xdst, struct net_device *dev,
- struct flowi *fl)
+ const struct flowi *fl)
{
struct rtable *rt = (struct rtable *)xdst->route;
+ const struct flowi4 *fl4 = &fl->u.ip4;
- xdst->u.rt.fl = *fl;
+ 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);
@@ -99,9 +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->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) {
@@ -114,8 +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->fl_ip_sport = ports[!!reverse];
- fl->fl_ip_dport = ports[!reverse];
+ fl4->fl4_sport = ports[!!reverse];
+ fl4->fl4_dport = ports[!reverse];
}
break;
@@ -123,8 +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->fl_icmp_type = icmp[0];
- fl->fl_icmp_code = icmp[1];
+ fl4->fl4_icmp_type = icmp[0];
+ fl4->fl4_icmp_code = icmp[1];
}
break;
@@ -132,7 +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->fl_ipsec_spi = ehdr[0];
+ fl4->fl4_ipsec_spi = ehdr[0];
}
break;
@@ -140,7 +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->fl_ipsec_spi = ah_hdr[1];
+ fl4->fl4_ipsec_spi = ah_hdr[1];
}
break;
@@ -148,7 +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->fl_ipsec_spi = htonl(ntohs(ipcomp_hdr[1]));
+ fl4->fl4_ipsec_spi = htonl(ntohs(ipcomp_hdr[1]));
}
break;
@@ -160,20 +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->fl_gre_key = gre_hdr[1];
+ fl4->fl4_gre_key = gre_hdr[1];
}
}
break;
default:
- fl->fl_ipsec_spi = 0;
+ fl4->fl4_ipsec_spi = 0;
break;
}
}
- fl->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)
@@ -196,8 +201,11 @@ static void xfrm4_dst_destroy(struct dst_entry *dst)
{
struct xfrm_dst *xdst = (struct xfrm_dst *)dst;
+ dst_destroy_metrics_generic(dst);
+
if (likely(xdst->u.rt.peer))
inet_putpeer(xdst->u.rt.peer);
+
xfrm_dst_destroy(xdst);
}
@@ -215,6 +223,7 @@ static struct dst_ops xfrm4_dst_ops = {
.protocol = cpu_to_be16(ETH_P_IP),
.gc = xfrm4_garbage_collect,
.update_pmtu = xfrm4_update_pmtu,
+ .cow_metrics = dst_cow_metrics_generic,
.destroy = xfrm4_dst_destroy,
.ifdown = xfrm4_dst_ifdown,
.local_out = __ip_local_out,
@@ -230,6 +239,7 @@ static struct xfrm_policy_afinfo xfrm4_policy_afinfo = {
.get_tos = xfrm4_get_tos,
.init_path = xfrm4_init_path,
.fill_dst = xfrm4_fill_dst,
+ .blackhole_route = ipv4_blackhole_route,
};
#ifdef CONFIG_SYSCTL
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-05 11:38:20 +0000