net: ip: ipv6_nbr: take TLLAO length from src lladdres

Alexander Wachter · Alexander Wachter · commit debc8d6364fa · 2019-08-06T16:24:31.000+02:00
Take the targer link layer address option link laxer addres lenght
from net packets source addres instead if the interface.
This is usefull for 6LoCAN border translator (6LoCAN to Ethernet).

Signed-off-by: Alexander Wachter &lt;alexander.wachter@student.tugraz.at&gt;
diff --git a/subsys/net/ip/ipv6_nbr.c b/subsys/net/ip/ipv6_nbr.c
@@ -1532,7 +1532,7 @@ static inline bool handle_na_neighbor(struct net_pkt *pkt,
 	}
 
 	if (tllao_offset) {
-		lladdr.len = net_if_get_link_addr(net_pkt_iface(pkt))->len;
+		lladdr.len = net_pkt_lladdr_src(pkt)->len;
 
 		net_pkt_cursor_init(pkt);
 

Original file line number	Diff line number	Diff line change
`@@ -1532,7 +1532,7 @@ static inline bool handle_na_neighbor(struct net_pkt *pkt,`
`1532`	`1532`	`}`
`1533`	`1533`
`1534`	`1534`	`if (tllao_offset) {`
`1535`		`- lladdr.len = net_if_get_link_addr(net_pkt_iface(pkt))->len;`
	`1535`	`+ lladdr.len = net_pkt_lladdr_src(pkt)->len;`
`1536`	`1536`
`1537`	`1537`	`net_pkt_cursor_init(pkt);`
`1538`	`1538`