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-rw-r--r--networking/udhcp/dhcpd.c14
1 files changed, 13 insertions, 1 deletions
diff --git a/networking/udhcp/dhcpd.c b/networking/udhcp/dhcpd.c
index 2d1d5deba..e48473389 100644
--- a/networking/udhcp/dhcpd.c
+++ b/networking/udhcp/dhcpd.c
@@ -247,11 +247,23 @@ static void send_inform(struct dhcp_packet *oldpacket)
{
struct dhcp_packet packet;
- /* "The server responds to a DHCPINFORM message by sending a DHCPACK
+ /* "If a client has obtained a network address through some other means
+ * (e.g., manual configuration), it may use a DHCPINFORM request message
+ * to obtain other local configuration parameters. Servers receiving a
+ * DHCPINFORM message construct a DHCPACK message with any local
+ * configuration parameters appropriate for the client without:
+ * allocating a new address, checking for an existing binding, filling
+ * in 'yiaddr' or including lease time parameters. The servers SHOULD
+ * unicast the DHCPACK reply to the address given in the 'ciaddr' field
+ * of the DHCPINFORM message.
+ * ...
+ * The server responds to a DHCPINFORM message by sending a DHCPACK
* message directly to the address given in the 'ciaddr' field
* of the DHCPINFORM message. The server MUST NOT send a lease
* expiration time to the client and SHOULD NOT fill in 'yiaddr'."
*/
+//TODO: do a few sanity checks: is ciaddr set?
+//Better yet: is ciaddr == IP source addr?
init_packet(&packet, oldpacket, DHCPACK);
add_server_options(&packet);