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-rw-r--r--include/libnetfilter_conntrack/libnetfilter_conntrack.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/libnetfilter_conntrack/libnetfilter_conntrack.h b/include/libnetfilter_conntrack/libnetfilter_conntrack.h
index 09e7920..f5add1a 100644
--- a/include/libnetfilter_conntrack/libnetfilter_conntrack.h
+++ b/include/libnetfilter_conntrack/libnetfilter_conntrack.h
@@ -716,6 +716,11 @@ enum ip_conntrack_status {
#define NFCT_DIR_REPLY 1
#define NFCT_DIR_MAX NFCT_DIR_REPLY+1
+/* xt_helper uses a length size of 30 bytes, however, no helper name in
+ * the tree has exceeded 16 bytes length. Since 2.6.29, the maximum
+ * length accepted is 16 bytes, this limit is enforced during module load. */
+#define NFCT_HELPER_NAME_MAX 16
+
#ifdef __cplusplus
}
#endif