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-rw-r--r--include/net/neighbour.h1
-rw-r--r--include/uapi/linux/neighbour.h1
-rw-r--r--net/core/neighbour.c15
3 files changed, 13 insertions, 4 deletions
diff --git a/include/net/neighbour.h b/include/net/neighbour.h
index e7bdf51..bd33e66 100644
--- a/include/net/neighbour.h
+++ b/include/net/neighbour.h
@@ -42,6 +42,7 @@ enum {
NEIGH_VAR_MCAST_PROBES,
NEIGH_VAR_UCAST_PROBES,
NEIGH_VAR_APP_PROBES,
+ NEIGH_VAR_MCAST_REPROBES,
NEIGH_VAR_RETRANS_TIME,
NEIGH_VAR_BASE_REACHABLE_TIME,
NEIGH_VAR_DELAY_PROBE_TIME,
diff --git a/include/uapi/linux/neighbour.h b/include/uapi/linux/neighbour.h
index 3873a35..2e35c61 100644
--- a/include/uapi/linux/neighbour.h
+++ b/include/uapi/linux/neighbour.h
@@ -126,6 +126,7 @@ enum {
NDTPA_PROXY_QLEN, /* u32 */
NDTPA_LOCKTIME, /* u64, msecs */
NDTPA_QUEUE_LENBYTES, /* u32 */
+ NDTPA_MCAST_REPROBES, /* u32 */
__NDTPA_MAX
};
#define NDTPA_MAX (__NDTPA_MAX - 1)
diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index 0e8b32e..3de6542 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -817,10 +817,9 @@ out:
static __inline__ int neigh_max_probes(struct neighbour *n)
{
struct neigh_parms *p = n->parms;
- int max_probes = NEIGH_VAR(p, UCAST_PROBES) + NEIGH_VAR(p, APP_PROBES);
- if (!(n->nud_state & NUD_PROBE))
- max_probes += NEIGH_VAR(p, MCAST_PROBES);
- return max_probes;
+ return NEIGH_VAR(p, UCAST_PROBES) + NEIGH_VAR(p, APP_PROBES) +
+ (n->nud_state & NUD_PROBE ? NEIGH_VAR(p, MCAST_REPROBES) :
+ NEIGH_VAR(p, MCAST_PROBES));
}
static void neigh_invalidate(struct neighbour *neigh)
@@ -1742,6 +1741,8 @@ static int neightbl_fill_parms(struct sk_buff *skb, struct neigh_parms *parms)
NEIGH_VAR(parms, UCAST_PROBES)) ||
nla_put_u32(skb, NDTPA_MCAST_PROBES,
NEIGH_VAR(parms, MCAST_PROBES)) ||
+ nla_put_u32(skb, NDTPA_MCAST_REPROBES,
+ NEIGH_VAR(parms, MCAST_REPROBES)) ||
nla_put_msecs(skb, NDTPA_REACHABLE_TIME, parms->reachable_time) ||
nla_put_msecs(skb, NDTPA_BASE_REACHABLE_TIME,
NEIGH_VAR(parms, BASE_REACHABLE_TIME)) ||
@@ -1901,6 +1902,7 @@ static const struct nla_policy nl_ntbl_parm_policy[NDTPA_MAX+1] = {
[NDTPA_APP_PROBES] = { .type = NLA_U32 },
[NDTPA_UCAST_PROBES] = { .type = NLA_U32 },
[NDTPA_MCAST_PROBES] = { .type = NLA_U32 },
+ [NDTPA_MCAST_REPROBES] = { .type = NLA_U32 },
[NDTPA_BASE_REACHABLE_TIME] = { .type = NLA_U64 },
[NDTPA_GC_STALETIME] = { .type = NLA_U64 },
[NDTPA_DELAY_PROBE_TIME] = { .type = NLA_U64 },
@@ -2001,6 +2003,10 @@ static int neightbl_set(struct sk_buff *skb, struct nlmsghdr *nlh)
NEIGH_VAR_SET(p, MCAST_PROBES,
nla_get_u32(tbp[i]));
break;
+ case NDTPA_MCAST_REPROBES:
+ NEIGH_VAR_SET(p, MCAST_REPROBES,
+ nla_get_u32(tbp[i]));
+ break;
case NDTPA_BASE_REACHABLE_TIME:
NEIGH_VAR_SET(p, BASE_REACHABLE_TIME,
nla_get_msecs(tbp[i]));
@@ -2987,6 +2993,7 @@ static struct neigh_sysctl_table {
NEIGH_SYSCTL_ZERO_INTMAX_ENTRY(MCAST_PROBES, "mcast_solicit"),
NEIGH_SYSCTL_ZERO_INTMAX_ENTRY(UCAST_PROBES, "ucast_solicit"),
NEIGH_SYSCTL_ZERO_INTMAX_ENTRY(APP_PROBES, "app_solicit"),
+ NEIGH_SYSCTL_ZERO_INTMAX_ENTRY(MCAST_REPROBES, "mcast_resolicit"),
NEIGH_SYSCTL_USERHZ_JIFFIES_ENTRY(RETRANS_TIME, "retrans_time"),
NEIGH_SYSCTL_JIFFIES_ENTRY(BASE_REACHABLE_TIME, "base_reachable_time"),
NEIGH_SYSCTL_JIFFIES_ENTRY(DELAY_PROBE_TIME, "delay_first_probe_time"),
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