When -1 is written in /proc/sys/net/ipv4/neigh/<iface>/locktime,
kernel disables ARP trashing protection. A value of 0 does not completely
disable this protection, a second ARP update being discarded if it
is processed during the same jiffie as the first update.
Signed-off-by: Alin Nastac <alin.nas...@gmail.com>
---
device.h | 2 +-
system-linux.c | 4 ++--
2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/device.h b/device.h
index 74d20d6..7ad733e 100644
--- a/device.h
+++ b/device.h
@@ -162,7 +162,7 @@ struct device_settings {
unsigned int neigh6reachabletime;
unsigned int neigh4gcstaletime;
unsigned int neigh6gcstaletime;
- unsigned int neigh4locktime;
+ int neigh4locktime;
bool rps;
bool xps;
unsigned int dadtransmits;
diff --git a/system-linux.c b/system-linux.c
index 483a98d..0480b56 100644
--- a/system-linux.c
+++ b/system-linux.c
@@ -1362,7 +1362,7 @@ system_if_get_settings(struct device *dev, struct
device_settings *s)
}
if (!system_get_neigh4locktime(dev, buf, sizeof(buf))) {
- s->neigh4locktime = strtoul(buf, NULL, 0);
+ s->neigh4locktime = strtol(buf, NULL, 0);
s->flags |= DEV_OPT_NEIGHLOCKTIME;
}
@@ -1476,7 +1476,7 @@ system_if_apply_settings(struct device *dev, struct
device_settings *s, unsigned
system_set_neigh6reachabletime(dev, buf);
}
if (s->flags & DEV_OPT_NEIGHLOCKTIME & apply_mask) {
- snprintf(buf, sizeof(buf), "%u", s->neigh4locktime);
+ snprintf(buf, sizeof(buf), "%d", s->neigh4locktime);
system_set_neigh4locktime(dev, buf);
}
if (s->flags & DEV_OPT_NEIGHGCSTALETIME & apply_mask) {
--
2.7.4
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