3 files changed, 16 insertions, 1 deletions
diff --git a/lib/netfilter/ct.c b/lib/netfilter/ct.c
index 903c584e..d589790e 100644
--- a/lib/netfilter/ct.c
+++ b/lib/netfilter/ct.c
@@ -413,6 +413,13 @@ static int ct_msg_parser(struct nl_cache_ops *ops, struct sockaddr_nl *who,
 	return err;
 }
 
+/**
+ * Send nfnl ct dump request
+ * @arg sk    Netlink socket.
+ *
+ * @return 0 on success or a negative error code. Due to a bug, this function
+ * returns the number of bytes sent. Treat any non-negative number as success.
+ */
 int nfnl_ct_dump_request(struct nl_sock *sk)
 {
 	return nfnl_send_simple(sk, NFNL_SUBSYS_CTNETLINK, IPCTNL_MSG_CT_GET,
diff --git a/lib/netfilter/exp.c b/lib/netfilter/exp.c
index 9cfdd2bf..650127c8 100644
--- a/lib/netfilter/exp.c
+++ b/lib/netfilter/exp.c
@@ -305,6 +305,13 @@ static int exp_msg_parser(struct nl_cache_ops *ops, struct sockaddr_nl *who,
 	return err;
 }
 
+/**
+ * Send nfnl exp dump request
+ * @arg sk    Netlink socket.
+ *
+ * @return 0 on success or a negative error code. Due to a bug, this function
+ * returns the number of bytes sent. Treat any non-negative number as success.
+ */
 int nfnl_exp_dump_request(struct nl_sock *sk)
 {
 	return nfnl_send_simple(sk, NFNL_SUBSYS_CTNETLINK_EXP, IPCTNL_MSG_EXP_GET,
diff --git a/lib/netfilter/nfnl.c b/lib/netfilter/nfnl.c
index f028a859..9b524470 100644
--- a/lib/netfilter/nfnl.c
+++ b/lib/netfilter/nfnl.c
@@ -102,7 +102,8 @@ int nfnl_connect(struct nl_sock *sk)
  * @arg family		nfnetlink address family
  * @arg res_id		nfnetlink resource id
  *
- * @return Newly allocated netlink message or NULL.
+ * @return 0 on success or a negative error code. Due to a bug, this function
+ * returns the number of bytes sent. Treat any non-negative number as success.
  */
 int nfnl_send_simple(struct nl_sock *sk, uint8_t subsys_id, uint8_t type,
 		     int flags, uint8_t family, uint16_t res_id)