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#ifndef __ESPCONN_H__
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#define __ESPCONN_H__
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#include "lwip/dns.h"
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#include "os_type.h"
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#if 0
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#define espconn_printf(fmt, args...) os_printf(fmt,## args)
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#else
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#define espconn_printf(fmt, args...)
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#endif
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typedef void *espconn_handle;
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typedef void (* espconn_connect_callback)(void *arg);
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typedef void (* espconn_reconnect_callback)(void *arg, sint8 err);
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/* Definitions for error constants. */
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#define ESPCONN_OK 0 /* No error, everything OK. */
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#define ESPCONN_MEM -1 /* Out of memory error. */
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#define ESPCONN_TIMEOUT -3 /* Timeout. */
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#define ESPCONN_RTE -4 /* Routing problem. */
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#define ESPCONN_INPROGRESS -5 /* Operation in progress */
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#define ESPCONN_ABRT -8 /* Connection aborted. */
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#define ESPCONN_RST -9 /* Connection reset. */
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#define ESPCONN_CLSD -10 /* Connection closed. */
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#define ESPCONN_CONN -11 /* Not connected. */
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#define ESPCONN_ARG -12 /* Illegal argument. */
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#define ESPCONN_ISCONN -15 /* Already connected. */
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#define ESPCONN_SSL 0x01
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#define ESPCONN_NORM 0x00
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#define ESPCONN_STA 0x01
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#define ESPCONN_AP 0x02
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#define ESPCONN_AP_STA 0x03
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#define STA_NETIF 0x00
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#define AP_NETIF 0x01
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/** Protocol family and type of the espconn */
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enum espconn_type {
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ESPCONN_INVALID = 0,
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/* ESPCONN_TCP Group */
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ESPCONN_TCP = 0x10,
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/* ESPCONN_UDP Group */
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ESPCONN_UDP = 0x20,
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};
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/** Current state of the espconn. Non-TCP espconn are always in state ESPCONN_NONE! */
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enum espconn_state {
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ESPCONN_NONE,
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ESPCONN_WAIT,
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ESPCONN_LISTEN,
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ESPCONN_CONNECT,
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ESPCONN_WRITE,
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ESPCONN_READ,
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ESPCONN_CLOSE
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};
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typedef struct _esp_tcp {
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int remote_port;
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int local_port;
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uint8 local_ip[4];
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uint8 remote_ip[4];
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espconn_connect_callback connect_callback;
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espconn_reconnect_callback reconnect_callback;
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espconn_connect_callback disconnect_callback;
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} esp_tcp;
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typedef struct _esp_udp {
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int remote_port;
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int local_port;
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uint8 local_ip[4];
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uint8 remote_ip[4];
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} esp_udp;
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typedef struct _remot_info{
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enum espconn_state state;
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int remote_port;
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uint8 remote_ip[4];
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}remot_info;
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/** A callback prototype to inform about events for a espconn */
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typedef void (* espconn_recv_callback)(void *arg, char *pdata, unsigned short len);
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typedef void (* espconn_sent_callback)(void *arg);
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/** A espconn descriptor */
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struct espconn {
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/** type of the espconn (TCP, UDP) */
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enum espconn_type type;
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/** current state of the espconn */
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enum espconn_state state;
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union {
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esp_tcp *tcp;
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esp_udp *udp;
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} proto;
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/** A callback function that is informed about events for this espconn */
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espconn_recv_callback recv_callback;
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espconn_sent_callback sent_callback;
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uint8 link_cnt;
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void *reverse;
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};
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typedef struct _comon_pkt{
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void *pcb;
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int remote_port;
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uint8 remote_ip[4];
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uint8 *ptrbuf;
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uint16 cntr;
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sint8 err;
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uint32 timeout;
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uint32 recv_check;
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os_timer_t ptimer;
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}comon_pkt;
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typedef struct _espconn_msg{
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struct espconn *pespconn;
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comon_pkt pcommon;
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uint8 count_opt;
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void *preverse;
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void *pssl;
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struct _espconn_msg *pnext;
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}espconn_msg;
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/******************************************************************************
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* FunctionName : espconn_copy_partial
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* Description : reconnect with host
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* Parameters : arg -- Additional argument to pass to the callback function
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* Returns : none
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*******************************************************************************/
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void espconn_copy_partial(struct espconn *pesp_dest, struct espconn *pesp_source);
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/******************************************************************************
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* FunctionName : espconn_copy_partial
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* Description : insert the node to the active connection list
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* Parameters : arg -- Additional argument to pass to the callback function
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* Returns : none
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*******************************************************************************/
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void espconn_list_creat(espconn_msg **phead, espconn_msg* pinsert);
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/******************************************************************************
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* FunctionName : espconn_list_delete
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* Description : remove the node from the active connection list
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* Parameters : arg -- Additional argument to pass to the callback function
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* Returns : none
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*******************************************************************************/
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void espconn_list_delete(espconn_msg **phead, espconn_msg* pdelete);
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/******************************************************************************
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* FunctionName : espconn_find_connection
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* Description : Initialize the server: set up a listening PCB and bind it to
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* the defined port
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* Parameters : espconn -- the espconn used to build server
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* Returns : none
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*******************************************************************************/
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bool espconn_find_connection(struct espconn *pespconn, espconn_msg **pnode);
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/******************************************************************************
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* FunctionName : espconn_get_connection_info
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* Description : used to specify the function that should be called when disconnect
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* Parameters : espconn -- espconn to set the err callback
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* discon_cb -- err callback function to call when err
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* Returns : none
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*******************************************************************************/
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sint8 espconn_get_connection_info(struct espconn *pespconn, remot_info **pcon_info, uint8 typeflags);
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/******************************************************************************
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* FunctionName : espconn_connect
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* Description : The function given as the connect
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* Parameters : espconn -- the espconn used to listen the connection
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* Returns : none
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*******************************************************************************/
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extern sint8 espconn_connect(struct espconn *espconn);
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/******************************************************************************
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* FunctionName : espconn_disconnect
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* Description : disconnect with host
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* Parameters : espconn -- the espconn used to disconnect the connection
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* Returns : none
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*******************************************************************************/
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extern sint8 espconn_disconnect(struct espconn *espconn);
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/******************************************************************************
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* FunctionName : espconn_delete
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* Description : disconnect with host
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* Parameters : espconn -- the espconn used to disconnect the connection
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* Returns : none
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*******************************************************************************/
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extern sint8 espconn_delete(struct espconn *espconn);
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/******************************************************************************
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* FunctionName : espconn_accept
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* Description : The function given as the listen
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* Parameters : espconn -- the espconn used to listen the connection
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* Returns : none
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*******************************************************************************/
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extern sint8 espconn_accept(struct espconn *espconn);
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/******************************************************************************
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* FunctionName : espconn_create
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* Description : sent data for client or server
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* Parameters : espconn -- espconn to the data transmission
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* Returns : result
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*******************************************************************************/
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extern sint8 espconn_create(struct espconn *espconn);
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/******************************************************************************
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* FunctionName : espconn_tcp_get_max_con
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* Description : get the number of simulatenously active TCP connections
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* Parameters : none
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* Returns : none
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*******************************************************************************/
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extern uint8 espconn_tcp_get_max_con(void);
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/******************************************************************************
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* FunctionName : espconn_tcp_set_max_con
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* Description : set the number of simulatenously active TCP connections
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* Parameters : num -- total number
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* Returns : none
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*******************************************************************************/
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extern sint8 espconn_tcp_set_max_con(uint8 num);
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/******************************************************************************
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* FunctionName : espconn_tcp_get_max_con_allow
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* Description : get the count of simulatenously active connections on the server
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* Parameters : espconn -- espconn to get the count
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* Returns : result
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*******************************************************************************/
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extern sint8 espconn_tcp_get_max_con_allow(struct espconn *espconn);
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/******************************************************************************
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* FunctionName : espconn_tcp_set_max_con_allow
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* Description : set the count of simulatenously active connections on the server
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* Parameters : espconn -- espconn to set the count
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* Returns : result
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*******************************************************************************/
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extern sint8 espconn_tcp_set_max_con_allow(struct espconn *espconn, uint8 num);
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/******************************************************************************
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* FunctionName : espconn_regist_time
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* Description : used to specify the time that should be called when don't recv data
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* Parameters : espconn -- the espconn used to the connection
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* interval -- the timer when don't recv data
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* Returns : none
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*******************************************************************************/
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extern sint8 espconn_regist_time(struct espconn *espconn, uint32 interval, uint8 type_flag);
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/******************************************************************************
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* FunctionName : espconn_regist_sentcb
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* Description : Used to specify the function that should be called when data
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* has been successfully delivered to the remote host.
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* Parameters : struct espconn *espconn -- espconn to set the sent callback
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* espconn_sent_callback sent_cb -- sent callback function to
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* call for this espconn when data is successfully sent
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* Returns : none
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*******************************************************************************/
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extern sint8 espconn_regist_sentcb(struct espconn *espconn, espconn_sent_callback sent_cb);
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/******************************************************************************
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* FunctionName : espconn_sent
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* Description : sent data for client or server
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* Parameters : espconn -- espconn to set for client or server
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* psent -- data to send
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* length -- length of data to send
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* Returns : none
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*******************************************************************************/
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extern sint8 espconn_sent(struct espconn *espconn, uint8 *psent, uint16 length);
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/******************************************************************************
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* FunctionName : espconn_regist_connectcb
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* Description : used to specify the function that should be called when
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* connects to host.
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* Parameters : espconn -- espconn to set the connect callback
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* connect_cb -- connected callback function to call when connected
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* Returns : none
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*******************************************************************************/
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extern sint8 espconn_regist_connectcb(struct espconn *espconn, espconn_connect_callback connect_cb);
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/******************************************************************************
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* FunctionName : espconn_regist_recvcb
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* Description : used to specify the function that should be called when recv
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* data from host.
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* Parameters : espconn -- espconn to set the recv callback
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* recv_cb -- recv callback function to call when recv data
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* Returns : none
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*******************************************************************************/
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extern sint8 espconn_regist_recvcb(struct espconn *espconn, espconn_recv_callback recv_cb);
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/******************************************************************************
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* FunctionName : espconn_regist_reconcb
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* Description : used to specify the function that should be called when connection
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* because of err disconnect.
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* Parameters : espconn -- espconn to set the err callback
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* recon_cb -- err callback function to call when err
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* Returns : none
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*******************************************************************************/
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extern sint8 espconn_regist_reconcb(struct espconn *espconn, espconn_reconnect_callback recon_cb);
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/******************************************************************************
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* FunctionName : espconn_regist_disconcb
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* Description : used to specify the function that should be called when disconnect
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* Parameters : espconn -- espconn to set the err callback
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* discon_cb -- err callback function to call when err
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* Returns : none
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*******************************************************************************/
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extern sint8 espconn_regist_disconcb(struct espconn *espconn, espconn_connect_callback discon_cb);
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/******************************************************************************
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* FunctionName : espconn_port
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* Description : access port value for client so that we don't end up bouncing
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* all connections at the same time .
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* Parameters : none
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* Returns : access port value
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*******************************************************************************/
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extern uint32 espconn_port(void);
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/******************************************************************************
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* FunctionName : espconn_gethostbyname
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* Description : Resolve a hostname (string) into an IP address.
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* Parameters : pespconn -- espconn to resolve a hostname
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* hostname -- the hostname that is to be queried
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* addr -- pointer to a ip_addr_t where to store the address if
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* it is already cached in the dns_table (only valid if
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* ESPCONN_OK is returned!)
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* found -- a callback function to be called on success, failure
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* or timeout (only if ERR_INPROGRESS is returned!)
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* Returns : err_t return code
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* - ESPCONN_OK if hostname is a valid IP address string or the host
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* name is already in the local names table.
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* - ESPCONN_INPROGRESS enqueue a request to be sent to the DNS server
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* for resolution if no errors are present.
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* - ESPCONN_ARG: dns client not initialized or invalid hostname
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*******************************************************************************/
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extern sint8 espconn_gethostbyname(struct espconn *pespconn, const char *name, ip_addr_t *addr, dns_found_callback found);
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/******************************************************************************
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* FunctionName : espconn_igmp_join
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* Description : join a multicast group
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* Parameters : host_ip -- the ip address of udp server
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* multicast_ip -- multicast ip given by user
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* Returns : none
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*******************************************************************************/
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extern sint8 espconn_igmp_join(ip_addr_t *host_ip, ip_addr_t *multicast_ip);
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/******************************************************************************
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* FunctionName : espconn_igmp_leave
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* Description : leave a multicast group
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* Parameters : host_ip -- the ip address of udp server
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* multicast_ip -- multicast ip given by user
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* Returns : none
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*******************************************************************************/
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extern sint8 espconn_igmp_leave(ip_addr_t *host_ip, ip_addr_t *multicast_ip);
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#endif
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Jeroen Domburg