[PATCH conntrack-tools] conntrackd: set default hashtable buckets and max entries if not specified

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Fall back to 65536 buckets and 262144 entries.

It would be probably good to add code to autoadjust by reading
/proc/sys/net/netfilter/nf_conntrack_buckets and
/proc/sys/net/nf_conntrack_max.

Closes: https://bugzilla.netfilter.org/show_bug.cgi?id=1491
Signed-off-by: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>
---
 src/read_config_yy.y | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/read_config_yy.y b/src/read_config_yy.y
index 31109c4de042..b215a729b716 100644
--- a/src/read_config_yy.y
+++ b/src/read_config_yy.y
@@ -1780,5 +1780,11 @@ init_config(char *filename)
 					 NF_NETLINK_CONNTRACK_DESTROY;
 	}
 
+	/* default hashtable buckets and maximum number of entries */
+	if (!CONFIG(hashsize))
+		CONFIG(hashsize) = 65536;
+	if (!CONFIG(limit))
+		CONFIG(limit) = 262144;
+
 	return 0;
 }
-- 
2.20.1




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