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-rw-r--r--Projects/Webserver/Lib/DHCPApp.h53
1 files changed, 47 insertions, 6 deletions
diff --git a/Projects/Webserver/Lib/DHCPApp.h b/Projects/Webserver/Lib/DHCPApp.h
index 9e9faaa36..5d11d8236 100644
--- a/Projects/Webserver/Lib/DHCPApp.h
+++ b/Projects/Webserver/Lib/DHCPApp.h
@@ -44,36 +44,76 @@
#include "../Webserver.h"
/* Macros: */
+ /** UDP listen port for a BOOTP server */
#define DHCPC_SERVER_PORT 67
+
+ /** UDP listen port for a BOOTP client */
#define DHCPC_CLIENT_PORT 68
+ /** BOOTP message type for a BOOTP REQUEST message */
#define DHCP_OP_BOOTREQUEST 0x01
+
+ /** BOOTP message type for a BOOTP REPLY message */
#define DHCP_OP_BOOTREPLY 0x02
+ /** BOOTP flag for a BOOTP broadcast message */
#define BOOTP_BROADCAST 0x8000
+ /** Magic DHCP cookie for a BOOTP message to identify it as a DHCP message */
#define DHCP_MAGIC_COOKIE 0x63538263
+ /** Unique transaction ID used to identify DHCP responses to the client */
#define DHCP_TRANSACTION_ID 0x13245466
+ /** DHCP message type for a DISCOVER message */
#define DHCP_DISCOVER 1
+
+ /** DHCP message type for an OFFER message */
#define DHCP_OFFER 2
+
+ /** DHCP message type for a REQUEST message */
#define DHCP_REQUEST 3
+
+ /** DHCP message type for a DECLINE message */
#define DHCP_DECLINE 4
+
+ /** DHCP message type for an ACK message */
#define DHCP_ACK 5
+
+ /** DHCP message type for a NAK message */
#define DHCP_NAK 6
+
+ /** DHCP message type for a RELEASE message */
#define DHCP_RELEASE 7
+ /** DHCP medium type for standard Ethernet */
#define DHCP_HTYPE_ETHERNET 1
+ /** DHCP message option for the network subnet mask */
#define DHCP_OPTION_SUBNET_MASK 1
+
+ /** DHCP message option for the network gateway IP */
#define DHCP_OPTION_ROUTER 3
+
+ /** DHCP message option for the network DNS server */
#define DHCP_OPTION_DNS_SERVER 6
+
+ /** DHCP message option for the requested client IP address */
#define DHCP_OPTION_REQ_IPADDR 50
+
+ /** DHCP message option for the IP address lease time */
#define DHCP_OPTION_LEASE_TIME 51
+
+ /** DHCP message option for the DHCP message type */
#define DHCP_OPTION_MSG_TYPE 53
+
+ /** DHCP message option for the DHCP server IP */
#define DHCP_OPTION_SERVER_ID 54
+
+ /** DHCP message option for the list of required options from the server */
#define DHCP_OPTION_REQ_LIST 55
+
+ /** DHCP message option for the options list terminator */
#define DHCP_OPTION_END 255
/* Type Defines: */
@@ -105,13 +145,14 @@
} DHCP_Header_t;
/* Enums: */
+ /** States for each DHCP connection to a DHCP client. */
enum DHCP_States_t
{
- DHCP_STATE_SendDiscover,
- DHCP_STATE_WaitForResponse,
- DHCP_STATE_SendRequest,
- DHCP_STATE_WaitForACK,
- DHCP_STATE_AddressLeased,
+ DHCP_STATE_SendDiscover, /**< Send DISCOVER packet to retrieve DHCP lease offers */
+ DHCP_STATE_WaitForOffer, /**< Waiting for OFFER packet giving available DHCP leases */
+ DHCP_STATE_SendRequest, /**< Send REQUEST packet to request a DHCP lease */
+ DHCP_STATE_WaitForACK, /**< Wait for ACK packet to complete the DHCP lease */
+ DHCP_STATE_AddressLeased, /**< DHCP address has been leased from a DHCP server */
};
/* Function Prototypes: */
@@ -119,7 +160,7 @@
void DHCPApp_Callback(void);
uint16_t DHCPApp_FillDHCPHeader(DHCP_Header_t* DHCPHeader, uint8_t DHCPMessageType, uip_udp_appstate_t* AppState);
- uint8_t DHCPApp_SetOption(uint8_t* DHCPOptionList, uint8_t Option, uint8_t DataLen, void* Source);
+ uint8_t DHCPApp_SetOption(uint8_t* DHCPOptionList, uint8_t Option, uint8_t DataLen, void* OptionData);
bool DHCPApp_GetOption(uint8_t* DHCPOptionList, uint8_t Option, void* Destination);
#endif