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Diffstat (limited to 'thirdparty/nRF5_SDK_15.0.0_a53641a/external/lwip/src/include/lwip/ip6_frag.h')
| -rw-r--r-- | thirdparty/nRF5_SDK_15.0.0_a53641a/external/lwip/src/include/lwip/ip6_frag.h | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/external/lwip/src/include/lwip/ip6_frag.h b/thirdparty/nRF5_SDK_15.0.0_a53641a/external/lwip/src/include/lwip/ip6_frag.h new file mode 100644 index 0000000..6be2747 --- /dev/null +++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/external/lwip/src/include/lwip/ip6_frag.h @@ -0,0 +1,120 @@ +/** + * @file + * + * IPv6 fragmentation and reassembly. + */ + +/* + * Copyright (c) 2010 Inico 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. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 THE AUTHOR 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 part of the lwIP TCP/IP stack. + * + * Author: Ivan Delamer <delamer@inicotech.com> + * + * + * Please coordinate changes and requests with Ivan Delamer + * <delamer@inicotech.com> + */ +#ifndef LWIP_HDR_IP6_FRAG_H +#define LWIP_HDR_IP6_FRAG_H + +#include "lwip/opt.h" +#include "lwip/pbuf.h" +#include "lwip/ip6_addr.h" +#include "lwip/ip6.h" +#include "lwip/netif.h" + +#ifdef __cplusplus +extern "C" { +#endif + + +#if LWIP_IPV6 && LWIP_IPV6_REASS /* don't build if not configured for use in lwipopts.h */ + +/** IP6_FRAG_COPYHEADER==1: for platforms where sizeof(void*) > 4, this needs to + * be enabled (to not overwrite part of the data). When enabled, the IPv6 header + * is copied instead of referencing it, which gives more room for struct ip6_reass_helper */ +#ifndef IPV6_FRAG_COPYHEADER +#define IPV6_FRAG_COPYHEADER 0 +#endif + +/** The IPv6 reassembly timer interval in milliseconds. */ +#define IP6_REASS_TMR_INTERVAL 1000 + +/* Copy the complete header of the first fragment to struct ip6_reassdata + or just point to its original location in the first pbuf? */ +#if IPV6_FRAG_COPYHEADER +#define IPV6_FRAG_HDRPTR +#define IPV6_FRAG_HDRREF(hdr) (&(hdr)) +#else /* IPV6_FRAG_COPYHEADER */ +#define IPV6_FRAG_HDRPTR * +#define IPV6_FRAG_HDRREF(hdr) (hdr) +#endif /* IPV6_FRAG_COPYHEADER */ + +/** IPv6 reassembly helper struct. + * This is exported because memp needs to know the size. + */ +struct ip6_reassdata { + struct ip6_reassdata *next; + struct pbuf *p; + struct ip6_hdr IPV6_FRAG_HDRPTR iphdr; + u32_t identification; + u16_t datagram_len; + u8_t nexth; + u8_t timer; +}; + +#define ip6_reass_init() /* Compatibility define */ +void ip6_reass_tmr(void); +struct pbuf *ip6_reass(struct pbuf *p); + +#endif /* LWIP_IPV6 && LWIP_IPV6_REASS */ + +#if LWIP_IPV6 && LWIP_IPV6_FRAG /* don't build if not configured for use in lwipopts.h */ + +#ifndef LWIP_PBUF_CUSTOM_REF_DEFINED +#define LWIP_PBUF_CUSTOM_REF_DEFINED +/** A custom pbuf that holds a reference to another pbuf, which is freed + * when this custom pbuf is freed. This is used to create a custom PBUF_REF + * that points into the original pbuf. */ +struct pbuf_custom_ref { + /** 'base class' */ + struct pbuf_custom pc; + /** pointer to the original pbuf that is referenced */ + struct pbuf *original; +}; +#endif /* LWIP_PBUF_CUSTOM_REF_DEFINED */ + +err_t ip6_frag(struct pbuf *p, struct netif *netif, const ip6_addr_t *dest); + +#endif /* LWIP_IPV6 && LWIP_IPV6_FRAG */ + + +#ifdef __cplusplus +} +#endif + +#endif /* LWIP_HDR_IP6_FRAG_H */ |