Stripped down version of Segundos NetService library (http://mbed.org/users/segundo/libraries/NetServices ). I have removed all NetServices, and all functions which had been disabled. Use this version when you need only pure TCP or UDP functions - this library compiles faster.
Dependents: christmasLights device_server pop3demo device_server_udp ... more
Diff: lwip/include/lwip/dhcp.h
- Revision:
- 1:9d93f4dc2f46
- Parent:
- 0:8b387bed54c2
--- a/lwip/include/lwip/dhcp.h Mon Jan 10 21:03:11 2011 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,239 +0,0 @@ -/** @file - */ - -#ifndef __LWIP_DHCP_H__ -#define __LWIP_DHCP_H__ - -#include "lwip/opt.h" - -#if LWIP_DHCP /* don't build if not configured for use in lwipopts.h */ - -#include "lwip/netif.h" -#include "lwip/udp.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/** period (in seconds) of the application calling dhcp_coarse_tmr() */ -#define DHCP_COARSE_TIMER_SECS 60 -/** period (in milliseconds) of the application calling dhcp_coarse_tmr() */ -#define DHCP_COARSE_TIMER_MSECS (DHCP_COARSE_TIMER_SECS * 1000UL) -/** period (in milliseconds) of the application calling dhcp_fine_tmr() */ -#define DHCP_FINE_TIMER_MSECS 500 - -#define DHCP_CHADDR_LEN 16U -#define DHCP_SNAME_LEN 64U -#define DHCP_FILE_LEN 128U - -struct dhcp -{ - /** transaction identifier of last sent request */ - u32_t xid; - /** our connection to the DHCP server */ - struct udp_pcb *pcb; - /** incoming msg */ - struct dhcp_msg *msg_in; - /** current DHCP state machine state */ - u8_t state; - /** retries of current request */ - u8_t tries; -#if LWIP_DHCP_AUTOIP_COOP - u8_t autoip_coop_state; -#endif - u8_t subnet_mask_given; - - struct pbuf *p_out; /* pbuf of outcoming msg */ - struct dhcp_msg *msg_out; /* outgoing msg */ - u16_t options_out_len; /* outgoing msg options length */ - u16_t request_timeout; /* #ticks with period DHCP_FINE_TIMER_SECS for request timeout */ - u16_t t1_timeout; /* #ticks with period DHCP_COARSE_TIMER_SECS for renewal time */ - u16_t t2_timeout; /* #ticks with period DHCP_COARSE_TIMER_SECS for rebind time */ - ip_addr_t server_ip_addr; /* dhcp server address that offered this lease */ - ip_addr_t offered_ip_addr; - ip_addr_t offered_sn_mask; - ip_addr_t offered_gw_addr; - - u32_t offered_t0_lease; /* lease period (in seconds) */ - u32_t offered_t1_renew; /* recommended renew time (usually 50% of lease period) */ - u32_t offered_t2_rebind; /* recommended rebind time (usually 66% of lease period) */ - /* @todo: LWIP_DHCP_BOOTP_FILE configuration option? - integrate with possible TFTP-client for booting? */ -#if LWIP_DHCP_BOOTP_FILE - ip_addr_t offered_si_addr; - char boot_file_name[DHCP_FILE_LEN]; -#endif /* LWIP_DHCP_BOOTPFILE */ -}; - -/* MUST be compiled with "pack structs" or equivalent! */ -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/bpstruct.h" -#endif -PACK_STRUCT_BEGIN -/** minimum set of fields of any DHCP message */ -struct dhcp_msg -{ - PACK_STRUCT_FIELD(u8_t op); - PACK_STRUCT_FIELD(u8_t htype); - PACK_STRUCT_FIELD(u8_t hlen); - PACK_STRUCT_FIELD(u8_t hops); - PACK_STRUCT_FIELD(u32_t xid); - PACK_STRUCT_FIELD(u16_t secs); - PACK_STRUCT_FIELD(u16_t flags); - PACK_STRUCT_FIELD(ip_addr_p_t ciaddr); - PACK_STRUCT_FIELD(ip_addr_p_t yiaddr); - PACK_STRUCT_FIELD(ip_addr_p_t siaddr); - PACK_STRUCT_FIELD(ip_addr_p_t giaddr); - PACK_STRUCT_FIELD(u8_t chaddr[DHCP_CHADDR_LEN]); - PACK_STRUCT_FIELD(u8_t sname[DHCP_SNAME_LEN]); - PACK_STRUCT_FIELD(u8_t file[DHCP_FILE_LEN]); - PACK_STRUCT_FIELD(u32_t cookie); -#define DHCP_MIN_OPTIONS_LEN 68U -/** make sure user does not configure this too small */ -#if ((defined(DHCP_OPTIONS_LEN)) && (DHCP_OPTIONS_LEN < DHCP_MIN_OPTIONS_LEN)) -# undef DHCP_OPTIONS_LEN -#endif -/** allow this to be configured in lwipopts.h, but not too small */ -#if (!defined(DHCP_OPTIONS_LEN)) -/** set this to be sufficient for your options in outgoing DHCP msgs */ -# define DHCP_OPTIONS_LEN DHCP_MIN_OPTIONS_LEN -#endif - PACK_STRUCT_FIELD(u8_t options[DHCP_OPTIONS_LEN]); -} PACK_STRUCT_STRUCT; -PACK_STRUCT_END -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/epstruct.h" -#endif - -void dhcp_set_struct(struct netif *netif, struct dhcp *dhcp); -/** start DHCP configuration */ -err_t dhcp_start(struct netif *netif); -/** enforce early lease renewal (not needed normally)*/ -err_t dhcp_renew(struct netif *netif); -/** release the DHCP lease, usually called before dhcp_stop()*/ -err_t dhcp_release(struct netif *netif); -/** stop DHCP configuration */ -void dhcp_stop(struct netif *netif); -/** inform server of our manual IP address */ -void dhcp_inform(struct netif *netif); -/** Handle a possible change in the network configuration */ -void dhcp_network_changed(struct netif *netif); - -/** if enabled, check whether the offered IP address is not in use, using ARP */ -#if DHCP_DOES_ARP_CHECK -void dhcp_arp_reply(struct netif *netif, ip_addr_t *addr); -#endif - -/** to be called every minute */ -void dhcp_coarse_tmr(void); -/** to be called every half second */ -void dhcp_fine_tmr(void); - -/** DHCP message item offsets and length */ -#define DHCP_OP_OFS 0 -#define DHCP_HTYPE_OFS 1 -#define DHCP_HLEN_OFS 2 -#define DHCP_HOPS_OFS 3 -#define DHCP_XID_OFS 4 -#define DHCP_SECS_OFS 8 -#define DHCP_FLAGS_OFS 10 -#define DHCP_CIADDR_OFS 12 -#define DHCP_YIADDR_OFS 16 -#define DHCP_SIADDR_OFS 20 -#define DHCP_GIADDR_OFS 24 -#define DHCP_CHADDR_OFS 28 -#define DHCP_SNAME_OFS 44 -#define DHCP_FILE_OFS 108 -#define DHCP_MSG_LEN 236 - -#define DHCP_COOKIE_OFS DHCP_MSG_LEN -#define DHCP_OPTIONS_OFS (DHCP_MSG_LEN + 4) - -#define DHCP_CLIENT_PORT 68 -#define DHCP_SERVER_PORT 67 - -/** DHCP client states */ -#define DHCP_OFF 0 -#define DHCP_REQUESTING 1 -#define DHCP_INIT 2 -#define DHCP_REBOOTING 3 -#define DHCP_REBINDING 4 -#define DHCP_RENEWING 5 -#define DHCP_SELECTING 6 -#define DHCP_INFORMING 7 -#define DHCP_CHECKING 8 -#define DHCP_PERMANENT 9 -#define DHCP_BOUND 10 -/** not yet implemented #define DHCP_RELEASING 11 */ -#define DHCP_BACKING_OFF 12 - -/** AUTOIP cooperatation flags */ -#define DHCP_AUTOIP_COOP_STATE_OFF 0 -#define DHCP_AUTOIP_COOP_STATE_ON 1 - -#define DHCP_BOOTREQUEST 1 -#define DHCP_BOOTREPLY 2 - -/** DHCP message types */ -#define DHCP_DISCOVER 1 -#define DHCP_OFFER 2 -#define DHCP_REQUEST 3 -#define DHCP_DECLINE 4 -#define DHCP_ACK 5 -#define DHCP_NAK 6 -#define DHCP_RELEASE 7 -#define DHCP_INFORM 8 - -/** DHCP hardware type, currently only ethernet is supported */ -#define DHCP_HTYPE_ETH 1 - -#define DHCP_MAGIC_COOKIE 0x63825363UL - -/* This is a list of options for BOOTP and DHCP, see RFC 2132 for descriptions */ - -/** BootP options */ -#define DHCP_OPTION_PAD 0 -#define DHCP_OPTION_SUBNET_MASK 1 /* RFC 2132 3.3 */ -#define DHCP_OPTION_ROUTER 3 -#define DHCP_OPTION_DNS_SERVER 6 -#define DHCP_OPTION_HOSTNAME 12 -#define DHCP_OPTION_IP_TTL 23 -#define DHCP_OPTION_MTU 26 -#define DHCP_OPTION_BROADCAST 28 -#define DHCP_OPTION_TCP_TTL 37 -#define DHCP_OPTION_END 255 - -/** DHCP options */ -#define DHCP_OPTION_REQUESTED_IP 50 /* RFC 2132 9.1, requested IP address */ -#define DHCP_OPTION_LEASE_TIME 51 /* RFC 2132 9.2, time in seconds, in 4 bytes */ -#define DHCP_OPTION_OVERLOAD 52 /* RFC2132 9.3, use file and/or sname field for options */ - -#define DHCP_OPTION_MESSAGE_TYPE 53 /* RFC 2132 9.6, important for DHCP */ -#define DHCP_OPTION_MESSAGE_TYPE_LEN 1 - -#define DHCP_OPTION_SERVER_ID 54 /* RFC 2132 9.7, server IP address */ -#define DHCP_OPTION_PARAMETER_REQUEST_LIST 55 /* RFC 2132 9.8, requested option types */ - -#define DHCP_OPTION_MAX_MSG_SIZE 57 /* RFC 2132 9.10, message size accepted >= 576 */ -#define DHCP_OPTION_MAX_MSG_SIZE_LEN 2 - -#define DHCP_OPTION_T1 58 /* T1 renewal time */ -#define DHCP_OPTION_T2 59 /* T2 rebinding time */ -#define DHCP_OPTION_US 60 -#define DHCP_OPTION_CLIENT_ID 61 -#define DHCP_OPTION_TFTP_SERVERNAME 66 -#define DHCP_OPTION_BOOTFILE 67 - -/** possible combinations of overloading the file and sname fields with options */ -#define DHCP_OVERLOAD_NONE 0 -#define DHCP_OVERLOAD_FILE 1 -#define DHCP_OVERLOAD_SNAME 2 -#define DHCP_OVERLOAD_SNAME_FILE 3 - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_DHCP */ - -#endif /*__LWIP_DHCP_H__*/