[164] | 1 | /*
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| 2 | * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
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| 3 | * All rights reserved.
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| 4 | *
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| 5 | * Redistribution and use in source and binary forms, with or without modification,
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| 6 | * are permitted provided that the following conditions are met:
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| 7 | *
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| 8 | * 1. Redistributions of source code must retain the above copyright notice,
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| 9 | * this list of conditions and the following disclaimer.
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| 10 | * 2. Redistributions in binary form must reproduce the above copyright notice,
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| 11 | * this list of conditions and the following disclaimer in the documentation
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| 12 | * and/or other materials provided with the distribution.
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| 13 | * 3. The name of the author may not be used to endorse or promote products
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| 14 | * derived from this software without specific prior written permission.
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| 15 | *
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| 16 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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| 17 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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| 18 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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| 19 | * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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| 20 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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| 21 | * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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| 22 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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| 23 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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| 24 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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| 25 | * OF SUCH DAMAGE.
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| 26 | *
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| 27 | * This file is part of the lwIP TCP/IP stack.
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| 28 | *
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| 29 | * Author: Adam Dunkels <adam@sics.se>
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| 30 | *
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| 31 | */
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| 32 | #ifndef __LWIP_RAW_H__
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| 33 | #define __LWIP_RAW_H__
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| 34 |
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| 35 | #include "lwip/opt.h"
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| 36 |
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| 37 | #if LWIP_RAW /* don't build if not configured for use in lwipopts.h */
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| 38 |
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| 39 | #include "lwip/pbuf.h"
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| 40 | #include "lwip/def.h"
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| 41 | #include "lwip/ip.h"
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| 42 | #include "lwip/ip_addr.h"
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| 43 |
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| 44 | #ifdef __cplusplus
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| 45 | extern "C" {
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| 46 | #endif
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| 47 |
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| 48 | struct raw_pcb;
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| 49 |
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| 50 | /** Function prototype for raw pcb receive callback functions.
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| 51 | * @param arg user supplied argument (raw_pcb.recv_arg)
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| 52 | * @param pcb the raw_pcb which received data
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| 53 | * @param p the packet buffer that was received
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| 54 | * @param addr the remote IP address from which the packet was received
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| 55 | * @return 1 if the packet was 'eaten' (aka. deleted),
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| 56 | * 0 if the packet lives on
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| 57 | * If returning 1, the callback is responsible for freeing the pbuf
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| 58 | * if it's not used any more.
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| 59 | */
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| 60 | typedef u8_t (*raw_recv_fn)(void *arg, struct raw_pcb *pcb, struct pbuf *p,
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| 61 | ip_addr_t *addr);
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| 62 |
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| 63 | struct raw_pcb {
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| 64 | /* Common members of all PCB types */
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| 65 | IP_PCB;
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| 66 |
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| 67 | struct raw_pcb *next;
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| 68 |
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| 69 | u8_t protocol;
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| 70 |
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| 71 | /** receive callback function */
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| 72 | raw_recv_fn recv;
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| 73 | /* user-supplied argument for the recv callback */
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| 74 | void *recv_arg;
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| 75 | };
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| 76 |
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| 77 | /* The following functions is the application layer interface to the
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| 78 | RAW code. */
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| 79 | struct raw_pcb * raw_new (u8_t proto);
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| 80 | void raw_remove (struct raw_pcb *pcb);
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| 81 | err_t raw_bind (struct raw_pcb *pcb, ip_addr_t *ipaddr);
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| 82 | err_t raw_connect (struct raw_pcb *pcb, ip_addr_t *ipaddr);
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| 83 |
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| 84 | void raw_recv (struct raw_pcb *pcb, raw_recv_fn recv, void *recv_arg);
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| 85 | err_t raw_sendto (struct raw_pcb *pcb, struct pbuf *p, ip_addr_t *ipaddr);
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| 86 | err_t raw_send (struct raw_pcb *pcb, struct pbuf *p);
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| 87 |
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| 88 | /* The following functions are the lower layer interface to RAW. */
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| 89 | u8_t raw_input (struct pbuf *p, struct netif *inp);
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| 90 | #define raw_init() /* Compatibility define, not init needed. */
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| 91 |
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| 92 | #ifdef __cplusplus
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| 93 | }
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| 94 | #endif
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| 95 |
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| 96 | #endif /* LWIP_RAW */
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| 97 |
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| 98 | #endif /* __LWIP_RAW_H__ */
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