[NET]: Core net changes to generate netevents
Generate netevents for:
- neighbour changes
- routing redirects
- pmtu changes
Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index 7ad681f..5130d2e 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -29,6 +29,7 @@
#include <net/neighbour.h>
#include <net/dst.h>
#include <net/sock.h>
+#include <net/netevent.h>
#include <linux/rtnetlink.h>
#include <linux/random.h>
#include <linux/string.h>
@@ -754,6 +755,7 @@
neigh->nud_state = NUD_STALE;
neigh->updated = jiffies;
neigh_suspect(neigh);
+ notify = 1;
}
} else if (state & NUD_DELAY) {
if (time_before_eq(now,
@@ -762,6 +764,7 @@
neigh->nud_state = NUD_REACHABLE;
neigh->updated = jiffies;
neigh_connect(neigh);
+ notify = 1;
next = neigh->confirmed + neigh->parms->reachable_time;
} else {
NEIGH_PRINTK2("neigh %p is probed.\n", neigh);
@@ -819,6 +822,8 @@
out:
write_unlock(&neigh->lock);
}
+ if (notify)
+ call_netevent_notifiers(NETEVENT_NEIGH_UPDATE, neigh);
#ifdef CONFIG_ARPD
if (notify && neigh->parms->app_probes)
@@ -926,9 +931,7 @@
{
u8 old;
int err;
-#ifdef CONFIG_ARPD
int notify = 0;
-#endif
struct net_device *dev;
int update_isrouter = 0;
@@ -948,9 +951,7 @@
neigh_suspect(neigh);
neigh->nud_state = new;
err = 0;
-#ifdef CONFIG_ARPD
notify = old & NUD_VALID;
-#endif
goto out;
}
@@ -1022,9 +1023,7 @@
if (!(new & NUD_CONNECTED))
neigh->confirmed = jiffies -
(neigh->parms->base_reachable_time << 1);
-#ifdef CONFIG_ARPD
notify = 1;
-#endif
}
if (new == old)
goto out;
@@ -1056,6 +1055,9 @@
(neigh->flags & ~NTF_ROUTER);
}
write_unlock_bh(&neigh->lock);
+
+ if (notify)
+ call_netevent_notifiers(NETEVENT_NEIGH_UPDATE, neigh);
#ifdef CONFIG_ARPD
if (notify && neigh->parms->app_probes)
neigh_app_notify(neigh);