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upgrade to lwip 2.0.0, beginning support for IPV6

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This commit is contained in:
Joseph Henry
2016-09-11 17:27:44 -07:00
parent 83361f35fe
commit fb1564562b
389 changed files with 122993 additions and 14346 deletions
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73
ext/lwip/src/api/netbuf.c
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@@ -2,13 +2,19 @@
* @file
* Network buffer management
*
* @defgroup netbuf Network buffers
* @ingroup netconn
* Network buffer descriptor for @ref netconn. Based on @ref pbuf internally
* to avoid copying data around.\n
* Buffers must not be shared accross multiple threads, all functions except
* netbuf_new() and netbuf_delete() are not thread-safe.
*/
/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* 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,
@@ -17,21 +23,21 @@
* 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.
* 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
* 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: Adam Dunkels <adam@sics.se>
*
*/
@@ -46,6 +52,7 @@
#include <string.h>
/**
* @ingroup netbuf
* Create (allocate) and initialize a new netbuf.
* The netbuf doesn't yet contain a packet buffer!
*
@@ -59,26 +66,13 @@ netbuf *netbuf_new(void)
buf = (struct netbuf *)memp_malloc(MEMP_NETBUF);
if (buf != NULL) {
buf->p = NULL;
buf->ptr = NULL;
ip_addr_set_any(&buf->addr);
buf->port = 0;
#if LWIP_NETBUF_RECVINFO || LWIP_CHECKSUM_ON_COPY
#if LWIP_CHECKSUM_ON_COPY
buf->flags = 0;
#endif /* LWIP_CHECKSUM_ON_COPY */
buf->toport_chksum = 0;
#if LWIP_NETBUF_RECVINFO
ip_addr_set_any(&buf->toaddr);
#endif /* LWIP_NETBUF_RECVINFO */
#endif /* LWIP_NETBUF_RECVINFO || LWIP_CHECKSUM_ON_COPY */
return buf;
} else {
return NULL;
memset(buf, 0, sizeof(struct netbuf));
}
return buf;
}
/**
* @ingroup netbuf
* Deallocate a netbuf allocated by netbuf_new().
*
* @param buf pointer to a netbuf allocated by netbuf_new()
@@ -96,6 +90,7 @@ netbuf_delete(struct netbuf *buf)
}
/**
* @ingroup netbuf
* Allocate memory for a packet buffer for a given netbuf.
*
* @param buf the netbuf for which to allocate a packet buffer
@@ -123,6 +118,7 @@ netbuf_alloc(struct netbuf *buf, u16_t size)
}
/**
* @ingroup netbuf
* Free the packet buffer included in a netbuf
*
* @param buf pointer to the netbuf which contains the packet buffer to free
@@ -138,6 +134,7 @@ netbuf_free(struct netbuf *buf)
}
/**
* @ingroup netbuf
* Let a netbuf reference existing (non-volatile) data.
*
* @param buf netbuf which should reference the data
@@ -158,13 +155,14 @@ netbuf_ref(struct netbuf *buf, const void *dataptr, u16_t size)
buf->ptr = NULL;
return ERR_MEM;
}
buf->p->payload = (void*)dataptr;
((struct pbuf_rom*)buf->p)->payload = dataptr;
buf->p->len = buf->p->tot_len = size;
buf->ptr = buf->p;
return ERR_OK;
}
/**
* @ingroup netbuf
* Chain one netbuf to another (@see pbuf_chain)
*
* @param head the first netbuf
@@ -173,7 +171,7 @@ netbuf_ref(struct netbuf *buf, const void *dataptr, u16_t size)
void
netbuf_chain(struct netbuf *head, struct netbuf *tail)
{
LWIP_ERROR("netbuf_ref: invalid head", (head != NULL), return;);
LWIP_ERROR("netbuf_chain: invalid head", (head != NULL), return;);
LWIP_ERROR("netbuf_chain: invalid tail", (tail != NULL), return;);
pbuf_cat(head->p, tail->p);
head->ptr = head->p;
@@ -181,12 +179,13 @@ netbuf_chain(struct netbuf *head, struct netbuf *tail)
}
/**
* @ingroup netbuf
* Get the data pointer and length of the data inside a netbuf.
*
* @param buf netbuf to get the data from
* @param dataptr pointer to a void pointer where to store the data pointer
* @param len pointer to an u16_t where the length of the data is stored
* @return ERR_OK if the information was retreived,
* @return ERR_OK if the information was retrieved,
* ERR_BUF on error.
*/
err_t
@@ -205,6 +204,7 @@ netbuf_data(struct netbuf *buf, void **dataptr, u16_t *len)
}
/**
* @ingroup netbuf
* Move the current data pointer of a packet buffer contained in a netbuf
* to the next part.
* The packet buffer itself is not modified.
@@ -217,7 +217,7 @@ netbuf_data(struct netbuf *buf, void **dataptr, u16_t *len)
s8_t
netbuf_next(struct netbuf *buf)
{
LWIP_ERROR("netbuf_free: invalid buf", (buf != NULL), return -1;);
LWIP_ERROR("netbuf_next: invalid buf", (buf != NULL), return -1;);
if (buf->ptr->next == NULL) {
return -1;
}
@@ -229,6 +229,7 @@ netbuf_next(struct netbuf *buf)
}
/**
* @ingroup netbuf
* Move the current data pointer of a packet buffer contained in a netbuf
* to the beginning of the packet.
* The packet buffer itself is not modified.
@@ -238,7 +239,7 @@ netbuf_next(struct netbuf *buf)
void
netbuf_first(struct netbuf *buf)
{
LWIP_ERROR("netbuf_free: invalid buf", (buf != NULL), return;);
LWIP_ERROR("netbuf_first: invalid buf", (buf != NULL), return;);
buf->ptr = buf->p;
}