From 7087bdcb5054dcc4cb69f9e1bc4cb24411eaef2f Mon Sep 17 00:00:00 2001
From: Johann Fischer <j.fischer@phytec.de>
Date: Thu, 7 May 2015 17:12:36 +0200
Subject: [PATCH] sys/.../ip.c: fix ipv6_net_if_get_best_src_addr
This patch fixes ipv6_net_if_get_best_src_addr,
the function seems not to be finished.
The patch also adds a filter for the prefixes,
it is necessary because the prefixes are stored
in the same list as the addresses.
---
sys/net/network_layer/sixlowpan/ip.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/sys/net/network_layer/sixlowpan/ip.c b/sys/net/network_layer/sixlowpan/ip.c
index 637c13ccfd..40ad9a1f61 100644
--- a/sys/net/network_layer/sixlowpan/ip.c
+++ b/sys/net/network_layer/sixlowpan/ip.c
@@ -729,6 +729,7 @@ void ipv6_net_if_get_best_src_addr(ipv6_addr_t *src, const ipv6_addr_t *dest)
int if_id = 0; // TODO: get this somehow
ipv6_net_if_addr_t *addr = NULL;
ipv6_net_if_addr_t *tmp_addr = NULL;
+ uint8_t bmatch = 0;
if (!(ipv6_addr_is_link_local(dest)) && !(ipv6_addr_is_multicast(dest))) {
while ((addr = (ipv6_net_if_addr_t *) net_if_iter_addresses(if_id,
@@ -739,11 +740,15 @@ void ipv6_net_if_get_best_src_addr(ipv6_addr_t *src, const ipv6_addr_t *dest)
&& !ipv6_addr_is_unique_local_unicast(
addr->addr_data)) {
- uint8_t bmatch = 0;
+ if (addr->addr_protocol == NET_IF_L3P_IPV6_PREFIX) {
+ continue;
+ }
+
uint8_t tmp = ipv6_get_addr_match(dest, addr->addr_data);
if (tmp >= bmatch) {
tmp_addr = addr;
+ bmatch = tmp;
}
}
}
--
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