Add DHCP Lease Time to RNDIS Demo

[pub/USBasp.git] / Demos / Device / LowLevel / RNDISEthernet / Lib / DHCP.c

diff --git a/Demos/Device/LowLevel/RNDISEthernet/Lib/DHCP.c b/Demos/Device/LowLevel/RNDISEthernet/Lib/DHCP.c
index fc501c3..0e98977 100644 (file)
--- a/Demos/Device/LowLevel/RNDISEthernet/Lib/DHCP.c
+++ b/Demos/Device/LowLevel/RNDISEthernet/Lib/DHCP.c
@@ -95,12 +95,20 @@ int16_t DHCP_ProcessDHCPPacket(void* IPHeaderInStart,
                                                                                                                                                                                                : DHCP_MESSAGETYPE_ACK;
 
                                *(DHCPOptionsOUTStart++) = DHCP_OPTION_SUBNETMASK;
-                               *(DHCPOptionsOUTStart++) = 4;
+                               *(DHCPOptionsOUTStart++) = sizeof(IP_Address_t);
                                *(DHCPOptionsOUTStart++) = 0xFF;
                                *(DHCPOptionsOUTStart++) = 0xFF;
                                *(DHCPOptionsOUTStart++) = 0xFF;
                                *(DHCPOptionsOUTStart++) = 0x00;
 
+                               *(DHCPOptionsOUTStart++) = DHCP_OPTION_LEASETIME;
+                               *(DHCPOptionsOUTStart++) = sizeof(uint32_t);
+                               /* Lease Time 86400s (ONE_DAY) */
+                               *(DHCPOptionsOUTStart++) = 0x00;
+                               *(DHCPOptionsOUTStart++) = 0x01;
+                               *(DHCPOptionsOUTStart++) = 0x51;
+                               *(DHCPOptionsOUTStart++) = 0x80;
+
                                *(DHCPOptionsOUTStart++) = DHCP_OPTION_DHCPSERVER;
                                *(DHCPOptionsOUTStart++) = sizeof(IP_Address_t);
                                memcpy(DHCPOptionsOUTStart, &ServerIPAddress, sizeof(IP_Address_t));
@@ -108,7 +116,7 @@ int16_t DHCP_ProcessDHCPPacket(void* IPHeaderInStart,
 
                                *(DHCPOptionsOUTStart++) = DHCP_OPTION_END;
 
-                               return (sizeof(DHCP_Header_t) + 12 + sizeof(IP_Address_t));
+                               return (sizeof(DHCP_Header_t) + 18 + sizeof(IP_Address_t));
                        }
                }