net: lwip: dhcp: support arguments for TFTP file download
The dhcp command is supposed to have the following syntax as per
"help dhcp":
dhcp [loadAddress] [[hostIPaddr:]bootfilename]
In other words, any arguments should be passed to an implicit
tftpboot command after the DHCP exchange has occurred.
Add the missing code to the lwIP version of do_dhcp().
Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
diff --git a/net/lwip/dhcp.c b/net/lwip/dhcp.c
index bfc72ca..9b882cf 100644
--- a/net/lwip/dhcp.c
+++ b/net/lwip/dhcp.c
@@ -111,9 +111,21 @@
int do_dhcp(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
{
+ int ret;
+
eth_set_current();
- return dhcp_loop(eth_get_dev());
+ ret = dhcp_loop(eth_get_dev());
+ if (ret)
+ return ret;
+
+ if (argc > 1) {
+ struct cmd_tbl cmdtp = {};
+
+ return do_tftpb(&cmdtp, 0, argc, argv);
+ }
+
+ return CMD_RET_SUCCESS;
}
int dhcp_run(ulong addr, const char *fname, bool autoload)