aboutsummaryrefslogtreecommitdiffstats
path: root/net/decnet/dn_route.c
diff options
context:
space:
mode:
Diffstat (limited to 'net/decnet/dn_route.c')
-rw-r--r--net/decnet/dn_route.c133
1 files changed, 75 insertions, 58 deletions
diff --git a/net/decnet/dn_route.c b/net/decnet/dn_route.c
index 82d6250..94f4ec0 100644
--- a/net/decnet/dn_route.c
+++ b/net/decnet/dn_route.c
@@ -77,6 +77,7 @@
#include <linux/netfilter_decnet.h>
#include <linux/rcupdate.h>
#include <linux/times.h>
+#include <linux/export.h>
#include <asm/errno.h>
#include <net/net_namespace.h>
#include <net/netlink.h>
@@ -111,11 +112,12 @@ static unsigned long dn_rt_deadline;
static int dn_dst_gc(struct dst_ops *ops);
static struct dst_entry *dn_dst_check(struct dst_entry *, __u32);
static unsigned int dn_dst_default_advmss(const struct dst_entry *dst);
-static unsigned int dn_dst_default_mtu(const struct dst_entry *dst);
+static unsigned int dn_dst_mtu(const struct dst_entry *dst);
static void dn_dst_destroy(struct dst_entry *);
static struct dst_entry *dn_dst_negative_advice(struct dst_entry *);
static void dn_dst_link_failure(struct sk_buff *);
static void dn_dst_update_pmtu(struct dst_entry *dst, u32 mtu);
+static struct neighbour *dn_dst_neigh_lookup(const struct dst_entry *dst, const void *daddr);
static int dn_route_input(struct sk_buff *);
static void dn_run_flush(unsigned long dummy);
@@ -133,12 +135,13 @@ static struct dst_ops dn_dst_ops = {
.gc = dn_dst_gc,
.check = dn_dst_check,
.default_advmss = dn_dst_default_advmss,
- .default_mtu = dn_dst_default_mtu,
+ .mtu = dn_dst_mtu,
.cow_metrics = dst_cow_metrics_generic,
.destroy = dn_dst_destroy,
.negative_advice = dn_dst_negative_advice,
.link_failure = dn_dst_link_failure,
.update_pmtu = dn_dst_update_pmtu,
+ .neigh_lookup = dn_dst_neigh_lookup,
};
static void dn_dst_destroy(struct dst_entry *dst)
@@ -497,11 +500,11 @@ static int dn_route_rx_packet(struct sk_buff *skb)
}
if ((skb->pkt_type == PACKET_HOST) && (cb->rt_flags & DN_RT_F_RQR)) {
- switch(cb->rt_flags & DN_RT_PKT_MSK) {
- case DN_RT_PKT_SHORT:
- return dn_return_short(skb);
- case DN_RT_PKT_LONG:
- return dn_return_long(skb);
+ switch (cb->rt_flags & DN_RT_PKT_MSK) {
+ case DN_RT_PKT_SHORT:
+ return dn_return_short(skb);
+ case DN_RT_PKT_LONG:
+ return dn_return_long(skb);
}
}
@@ -654,38 +657,38 @@ int dn_route_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type
if (unlikely(skb_linearize(skb)))
goto dump_it;
- switch(flags & DN_RT_CNTL_MSK) {
- case DN_RT_PKT_INIT:
- dn_dev_init_pkt(skb);
- break;
- case DN_RT_PKT_VERI:
- dn_dev_veri_pkt(skb);
- break;
+ switch (flags & DN_RT_CNTL_MSK) {
+ case DN_RT_PKT_INIT:
+ dn_dev_init_pkt(skb);
+ break;
+ case DN_RT_PKT_VERI:
+ dn_dev_veri_pkt(skb);
+ break;
}
if (dn->parms.state != DN_DEV_S_RU)
goto dump_it;
- switch(flags & DN_RT_CNTL_MSK) {
- case DN_RT_PKT_HELO:
- return NF_HOOK(NFPROTO_DECNET, NF_DN_HELLO,
- skb, skb->dev, NULL,
- dn_route_ptp_hello);
-
- case DN_RT_PKT_L1RT:
- case DN_RT_PKT_L2RT:
- return NF_HOOK(NFPROTO_DECNET, NF_DN_ROUTE,
- skb, skb->dev, NULL,
- dn_route_discard);
- case DN_RT_PKT_ERTH:
- return NF_HOOK(NFPROTO_DECNET, NF_DN_HELLO,
- skb, skb->dev, NULL,
- dn_neigh_router_hello);
-
- case DN_RT_PKT_EEDH:
- return NF_HOOK(NFPROTO_DECNET, NF_DN_HELLO,
- skb, skb->dev, NULL,
- dn_neigh_endnode_hello);
+ switch (flags & DN_RT_CNTL_MSK) {
+ case DN_RT_PKT_HELO:
+ return NF_HOOK(NFPROTO_DECNET, NF_DN_HELLO,
+ skb, skb->dev, NULL,
+ dn_route_ptp_hello);
+
+ case DN_RT_PKT_L1RT:
+ case DN_RT_PKT_L2RT:
+ return NF_HOOK(NFPROTO_DECNET, NF_DN_ROUTE,
+ skb, skb->dev, NULL,
+ dn_route_discard);
+ case DN_RT_PKT_ERTH:
+ return NF_HOOK(NFPROTO_DECNET, NF_DN_HELLO,
+ skb, skb->dev, NULL,
+ dn_neigh_router_hello);
+
+ case DN_RT_PKT_EEDH:
+ return NF_HOOK(NFPROTO_DECNET, NF_DN_HELLO,
+ skb, skb->dev, NULL,
+ dn_neigh_endnode_hello);
}
} else {
if (dn->parms.state != DN_DEV_S_RU)
@@ -693,11 +696,11 @@ int dn_route_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type
skb_pull(skb, 1); /* Pull flags */
- switch(flags & DN_RT_PKT_MSK) {
- case DN_RT_PKT_LONG:
- return dn_route_rx_long(skb);
- case DN_RT_PKT_SHORT:
- return dn_route_rx_short(skb);
+ switch (flags & DN_RT_PKT_MSK) {
+ case DN_RT_PKT_LONG:
+ return dn_route_rx_long(skb);
+ case DN_RT_PKT_SHORT:
+ return dn_route_rx_short(skb);
}
}
@@ -707,6 +710,14 @@ out:
return NET_RX_DROP;
}
+static int dn_to_neigh_output(struct sk_buff *skb)
+{
+ struct dst_entry *dst = skb_dst(skb);
+ struct neighbour *n = dst_get_neighbour(dst);
+
+ return n->output(n, skb);
+}
+
static int dn_output(struct sk_buff *skb)
{
struct dst_entry *dst = skb_dst(skb);
@@ -735,7 +746,7 @@ static int dn_output(struct sk_buff *skb)
cb->hops = 0;
return NF_HOOK(NFPROTO_DECNET, NF_DN_LOCAL_OUT, skb, NULL, dev,
- neigh->output);
+ dn_to_neigh_output);
error:
if (net_ratelimit())
@@ -752,7 +763,6 @@ static int dn_forward(struct sk_buff *skb)
struct dst_entry *dst = skb_dst(skb);
struct dn_dev *dn_db = rcu_dereference(dst->dev->dn_ptr);
struct dn_route *rt;
- struct neighbour *neigh = dst_get_neighbour(dst);
int header_len;
#ifdef CONFIG_NETFILTER
struct net_device *dev = skb->dev;
@@ -785,7 +795,7 @@ static int dn_forward(struct sk_buff *skb)
cb->rt_flags |= DN_RT_F_IE;
return NF_HOOK(NFPROTO_DECNET, NF_DN_FORWARD, skb, dev, skb->dev,
- neigh->output);
+ dn_to_neigh_output);
drop:
kfree_skb(skb);
@@ -815,9 +825,16 @@ static unsigned int dn_dst_default_advmss(const struct dst_entry *dst)
return dn_mss_from_pmtu(dst->dev, dst_mtu(dst));
}
-static unsigned int dn_dst_default_mtu(const struct dst_entry *dst)
+static unsigned int dn_dst_mtu(const struct dst_entry *dst)
+{
+ unsigned int mtu = dst_metric_raw(dst, RTAX_MTU);
+
+ return mtu ? : dst->dev->mtu;
+}
+
+static struct neighbour *dn_dst_neigh_lookup(const struct dst_entry *dst, const void *daddr)
{
- return dst->dev->mtu;
+ return __neigh_lookup_errno(&dn_neigh_table, daddr, dst->dev);
}
static int dn_rt_set_next_hop(struct dn_route *rt, struct dn_fib_res *res)
@@ -1421,20 +1438,20 @@ make_route:
dst_set_neighbour(&rt->dst, neigh);
rt->dst.lastuse = jiffies;
rt->dst.output = dn_rt_bug;
- switch(res.type) {
- case RTN_UNICAST:
- rt->dst.input = dn_forward;
- break;
- case RTN_LOCAL:
- rt->dst.output = dn_output;
- rt->dst.input = dn_nsp_rx;
- rt->dst.dev = in_dev;
- flags |= RTCF_LOCAL;
- break;
- default:
- case RTN_UNREACHABLE:
- case RTN_BLACKHOLE:
- rt->dst.input = dst_discard;
+ switch (res.type) {
+ case RTN_UNICAST:
+ rt->dst.input = dn_forward;
+ break;
+ case RTN_LOCAL:
+ rt->dst.output = dn_output;
+ rt->dst.input = dn_nsp_rx;
+ rt->dst.dev = in_dev;
+ flags |= RTCF_LOCAL;
+ break;
+ default:
+ case RTN_UNREACHABLE:
+ case RTN_BLACKHOLE:
+ rt->dst.input = dst_discard;
}
rt->rt_flags = flags;
generated by cgit v1.1 at 2024-04-26 09:46:49 +0000