From: Jouni Malinen <jouni@qca.qualcomm.com>
Date: Tue, 25 Nov 2014 23:06:56 +0000 (+0200)
Subject: proxyarp: Print learned IPv6 address in debug log
X-Git-Tag: hostap_2_4~1025
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=a6b4ee217aa45f668793c4540b3bcdf2caa8f427;p=thirdparty%2Fhostap.git

proxyarp: Print learned IPv6 address in debug log

This makes it easier to debug issues related to IPv6 address snooping.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
---

diff --git a/src/ap/ndisc_snoop.c b/src/ap/ndisc_snoop.c
index 755621c56..39d15c7fb 100644
--- a/src/ap/ndisc_snoop.c
+++ b/src/ap/ndisc_snoop.c
@@ -89,6 +89,7 @@ static void handle_ndisc(void *ctx, const u8 *src_addr, const u8 *buf,
 	struct in6_addr *saddr;
 	struct sta_info *sta;
 	int res;
+	char addrtxt[INET6_ADDRSTRLEN + 1];
 
 	if (len < ETH_HLEN + sizeof(*msg))
 		return;
@@ -110,6 +111,11 @@ static void handle_ndisc(void *ctx, const u8 *src_addr, const u8 *buf,
 			if (sta_has_ip6addr(sta, saddr))
 				return;
 
+			if (inet_ntop(AF_INET6, saddr, addrtxt, sizeof(addrtxt))
+			    == NULL)
+				addrtxt[0] = '\0';
+			wpa_printf(MSG_DEBUG, "ndisc_snoop: Learned new IPv6 address %s for "
+				   MACSTR, addrtxt, MAC2STR(sta->addr));
 			hostapd_drv_br_delete_ip_neigh(hapd, 6, (u8 *) saddr);
 			res = hostapd_drv_br_add_ip_neigh(hapd, 6, (u8 *) saddr,
 							  128, sta->addr);