+++ /dev/null
-/*
- * Copyright (c) 2002 CITEL Technologies Ltd.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. Neither the name of CITEL Technologies Ltd nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY CITEL TECHNOLOGIES AND CONTRIBUTORS ``AS IS''
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL CITEL TECHNOLOGIES OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * This file is a contribution to the lwIP TCP/IP stack.
- * The Swedish Institute of Computer Science and Adam Dunkels
- * are specifically granted permission to redistribute this
- * source code.
-*/
-
-#ifndef __LWIP_IGMP_H__
-#define __LWIP_IGMP_H__
-
-#include "lwip/opt.h"
-#include "lwip/ip_addr.h"
-#include "lwip/netif.h"
-#include "lwip/pbuf.h"
-
-#if LWIP_IGMP /* don't build if not configured for use in lwipopts.h */
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/*
- * IGMP constants
- */
-#define IP_PROTO_IGMP 2
-#define IGMP_TTL 1
-#define IGMP_MINLEN 8
-#define ROUTER_ALERT 0x9404
-#define ROUTER_ALERTLEN 4
-
-/*
- * IGMP message types, including version number.
- */
-#define IGMP_MEMB_QUERY 0x11 /* Membership query */
-#define IGMP_V1_MEMB_REPORT 0x12 /* Ver. 1 membership report */
-#define IGMP_V2_MEMB_REPORT 0x16 /* Ver. 2 membership report */
-#define IGMP_LEAVE_GROUP 0x17 /* Leave-group message */
-
-/* IGMP timer */
-#define IGMP_TMR_INTERVAL 100 /* Milliseconds */
-#define IGMP_V1_DELAYING_MEMBER_TMR (1000/IGMP_TMR_INTERVAL)
-#define IGMP_JOIN_DELAYING_MEMBER_TMR (500 /IGMP_TMR_INTERVAL)
-
-/* MAC Filter Actions */
-#define IGMP_DEL_MAC_FILTER 0
-#define IGMP_ADD_MAC_FILTER 1
-
-/* Group membership states */
-#define IGMP_GROUP_NON_MEMBER 0
-#define IGMP_GROUP_DELAYING_MEMBER 1
-#define IGMP_GROUP_IDLE_MEMBER 2
-
-/*
- * IGMP packet format.
- */
-#ifdef PACK_STRUCT_USE_INCLUDES
-# include "arch/bpstruct.h"
-#endif
-PACK_STRUCT_BEGIN
-struct igmp_msg {
- PACK_STRUCT_FIELD(u8_t igmp_msgtype);
- PACK_STRUCT_FIELD(u8_t igmp_maxresp);
- PACK_STRUCT_FIELD(u16_t igmp_checksum);
- PACK_STRUCT_FIELD(struct ip_addr igmp_group_address);
-} PACK_STRUCT_STRUCT;
-PACK_STRUCT_END
-#ifdef PACK_STRUCT_USE_INCLUDES
-# include "arch/epstruct.h"
-#endif
-
-/*
- * now a group structure - there is
- * a list of groups for each interface
- * these should really be linked from the interface, but
- * if we keep them separate we will not affect the lwip original code
- * too much
- *
- * There will be a group for the all systems group address but this
- * will not run the state machine as it is used to kick off reports
- * from all the other groups
- */
-
-struct igmp_group {
- struct igmp_group *next;
- struct netif *interface;
- struct ip_addr group_address;
- u8_t last_reporter_flag; /* signifies we were the last person to report */
- u8_t group_state;
- u16_t timer;
- u8_t use; /* counter of simultaneous uses */
-};
-
-
-/* Prototypes */
-void igmp_init(void);
-
-err_t igmp_start( struct netif *netif);
-
-err_t igmp_stop( struct netif *netif);
-
-void igmp_report_groups( struct netif *netif);
-
-struct igmp_group *igmp_lookfor_group( struct netif *ifp, struct ip_addr *addr);
-
-struct igmp_group *igmp_lookup_group( struct netif *ifp, struct ip_addr *addr);
-
-err_t igmp_remove_group( struct igmp_group *group);
-
-void igmp_input( struct pbuf *p, struct netif *inp, struct ip_addr *dest);
-
-err_t igmp_joingroup( struct ip_addr *ifaddr, struct ip_addr *groupaddr);
-
-err_t igmp_leavegroup( struct ip_addr *ifaddr, struct ip_addr *groupaddr);
-
-void igmp_tmr(void);
-
-void igmp_timeout( struct igmp_group *group);
-
-void igmp_start_timer( struct igmp_group *group, u8_t max_time);
-
-void igmp_stop_timer( struct igmp_group *group);
-
-void igmp_delaying_member( struct igmp_group *group, u8_t maxresp);
-
-err_t igmp_ip_output_if( struct pbuf *p, struct ip_addr *src, struct ip_addr *dest, u8_t ttl, u8_t proto, struct netif *netif);
-
-void igmp_send( struct igmp_group *group, u8_t type);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* LWIP_IGMP */
-
-#endif /* __LWIP_IGMP_H__ */