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lowpan6_common.h
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1 /**
2  * @file
3  *
4  * Common 6LowPAN routines for IPv6. Uses ND tables for link-layer addressing. Fragments packets to 6LowPAN units.
5  */
6 
7 /*
8  * Copyright (c) 2015 Inico Technologies Ltd.
9  * All rights reserved.
10  *
11  * Redistribution and use in source and binary forms, with or without modification,
12  * are permitted provided that the following conditions are met:
13  *
14  * 1. Redistributions of source code must retain the above copyright notice,
15  * this list of conditions and the following disclaimer.
16  * 2. Redistributions in binary form must reproduce the above copyright notice,
17  * this list of conditions and the following disclaimer in the documentation
18  * and/or other materials provided with the distribution.
19  * 3. The name of the author may not be used to endorse or promote products
20  * derived from this software without specific prior written permission.
21  *
22  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
23  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
24  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
25  * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
26  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
27  * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
30  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
31  * OF SUCH DAMAGE.
32  *
33  * This file is part of the lwIP TCP/IP stack.
34  *
35  * Author: Ivan Delamer <delamer@inicotech.com>
36  *
37  *
38  * Please coordinate changes and requests with Ivan Delamer
39  * <delamer@inicotech.com>
40  */
41 
42 #ifndef LWIP_HDR_LOWPAN6_COMMON_H
43 #define LWIP_HDR_LOWPAN6_COMMON_H
44 
45 #include "netif/lowpan6_opts.h"
46 
47 #if LWIP_IPV6 /* don't build if IPv6 is disabled in lwipopts.h */
48 
49 #include "lwip/pbuf.h"
50 #include "lwip/ip.h"
51 #include "lwip/ip6_addr.h"
52 #include "lwip/netif.h"
53 
54 #ifdef __cplusplus
55 extern "C" {
56 #endif
57 
58 /** Helper define for a link layer address, which can be encoded as 0, 2 or 8 bytes */
59 struct lowpan6_link_addr {
60  /* encoded length of the address */
61  u8_t addr_len;
62  /* address bytes */
63  u8_t addr[8];
64 };
65 
66 s8_t lowpan6_get_address_mode(const ip6_addr_t *ip6addr, const struct lowpan6_link_addr *mac_addr);
67 
68 #if LWIP_6LOWPAN_IPHC
69 err_t lowpan6_compress_headers(struct netif *netif, u8_t *inbuf, size_t inbuf_size, u8_t *outbuf, size_t outbuf_size,
70  u8_t *lowpan6_header_len_out, u8_t *hidden_header_len_out, ip6_addr_t *lowpan6_contexts,
71  const struct lowpan6_link_addr *src, const struct lowpan6_link_addr *dst);
72 struct pbuf *lowpan6_decompress(struct pbuf *p, u16_t datagram_size, ip6_addr_t *lowpan6_contexts,
73  struct lowpan6_link_addr *src, struct lowpan6_link_addr *dest);
74 #endif /* LWIP_6LOWPAN_IPHC */
75 
76 #ifdef __cplusplus
77 }
78 #endif
79 
80 #endif /* LWIP_IPV6 */
81 
82 #endif /* LWIP_HDR_LOWPAN6_COMMON_H */
IP API.
IPv6 addresses.
netif API (to be used from TCPIP thread)
Main packet buffer struct.
Generic data structure used for all lwIP network interfaces.
6LowPAN options list
pbuf API
IP address structure for passing IP addresses by value.
Definition: nsapi_types.h:190
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