net: Add link-local addressing support
Code based on networking/zcip.c in busybox
commit 8531d76a15890c2c535908ce888b2e2aed35b172
Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
diff --git a/common/cmd_net.c b/common/cmd_net.c
index 2f66056..a9ade8b 100644
--- a/common/cmd_net.c
+++ b/common/cmd_net.c
@@ -428,3 +428,34 @@
);
#endif /* CONFIG_CMD_DNS */
+
+#if defined(CONFIG_CMD_LINK_LOCAL)
+static int do_link_local(cmd_tbl_t *cmdtp, int flag, int argc,
+ char * const argv[])
+{
+ char tmp[22];
+
+ if (NetLoop(LINKLOCAL) < 0)
+ return 1;
+
+ NetOurGatewayIP = 0;
+ ip_to_string(NetOurGatewayIP, tmp);
+ setenv("gatewayip", tmp);
+
+ ip_to_string(NetOurSubnetMask, tmp);
+ setenv("netmask", tmp);
+
+ ip_to_string(NetOurIP, tmp);
+ setenv("ipaddr", tmp);
+ setenv("llipaddr", tmp); /* store this for next time */
+
+ return 0;
+}
+
+U_BOOT_CMD(
+ linklocal, 1, 1, do_link_local,
+ "acquire a network IP address using the link-local protocol",
+ ""
+);
+
+#endif /* CONFIG_CMD_LINK_LOCAL */