Once the DHCP exchange is complete, if we have an IP address for an NTP server, set the ntpserverip environment variable accordingly. Although not necessary to make the sntp command use that server (since it is known internally to the lwIP stack), this makes the behavior in line with the legacy NET stack. This is also consistent with exporting the DNS servers etc.
Signed-off-by: Jerome Forissier <[email protected]> Suggested-by: Michal Simek <[email protected]> --- net/lwip/dhcp.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/net/lwip/dhcp.c b/net/lwip/dhcp.c index cbdfea3ba82a..531bf2c67057 100644 --- a/net/lwip/dhcp.c +++ b/net/lwip/dhcp.c @@ -33,6 +33,7 @@ static int dhcp_loop(struct udevice *udev) char ipstr[] = "ipaddr\0\0"; char maskstr[] = "netmask\0\0"; char gwstr[] = "gatewayip\0\0"; + const ip_addr_t *ntpserverip; unsigned long start; struct netif *netif; struct dhcp *dhcp; @@ -110,6 +111,11 @@ static int dhcp_loop(struct udevice *udev) strncpy(boot_file_name, dhcp->boot_file_name, sizeof(boot_file_name)); #endif + if (CONFIG_IS_ENABLED(CMD_SNTP)) { + ntpserverip = sntp_getserver(1); + if (ntpserverip != IP_ADDR_ANY) + env_set("ntpserverip", ip4addr_ntoa(ntpserverip)); + } printf("DHCP client bound to address %pI4 (%lu ms)\n", &dhcp->offered_ip_addr, get_timer(start)); -- 2.48.1
