TCPSpeedTest - I have a problem getting this to work. Server onl…

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Jesper Taxbøl / Mbed 2 deprecated TCPSpeedTest

I have a problem getting this to work. Server only recieves half of the data being sent. Whats wrong

lwip/core/raw.c@0:66300c77c6e9, 2011-03-29 (annotated)

Committer:: tax
Date:: Tue Mar 29 13:20:15 2011 +0000
Revision:: 0:66300c77c6e9

Who changed what in which revision?

User	Revision	Line number	New contents of line
tax	0:66300c77c6e9	1	/**
tax	0:66300c77c6e9	2	* @file
tax	0:66300c77c6e9	3	* Implementation of raw protocol PCBs for low-level handling of
tax	0:66300c77c6e9	4	* different types of protocols besides (or overriding) those
tax	0:66300c77c6e9	5	* already available in lwIP.
tax	0:66300c77c6e9	6	*
tax	0:66300c77c6e9	7	*/
tax	0:66300c77c6e9	8
tax	0:66300c77c6e9	9	/*
tax	0:66300c77c6e9	10	* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
tax	0:66300c77c6e9	11	* All rights reserved.
tax	0:66300c77c6e9	12	*
tax	0:66300c77c6e9	13	* Redistribution and use in source and binary forms, with or without modification,
tax	0:66300c77c6e9	14	* are permitted provided that the following conditions are met:
tax	0:66300c77c6e9	15	*
tax	0:66300c77c6e9	16	* 1. Redistributions of source code must retain the above copyright notice,
tax	0:66300c77c6e9	17	* this list of conditions and the following disclaimer.
tax	0:66300c77c6e9	18	* 2. Redistributions in binary form must reproduce the above copyright notice,
tax	0:66300c77c6e9	19	* this list of conditions and the following disclaimer in the documentation
tax	0:66300c77c6e9	20	* and/or other materials provided with the distribution.
tax	0:66300c77c6e9	21	* 3. The name of the author may not be used to endorse or promote products
tax	0:66300c77c6e9	22	* derived from this software without specific prior written permission.
tax	0:66300c77c6e9	23	*
tax	0:66300c77c6e9	24	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
tax	0:66300c77c6e9	25	* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
tax	0:66300c77c6e9	26	* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
tax	0:66300c77c6e9	27	* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
tax	0:66300c77c6e9	28	* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
tax	0:66300c77c6e9	29	* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
tax	0:66300c77c6e9	30	* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
tax	0:66300c77c6e9	31	* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
tax	0:66300c77c6e9	32	* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
tax	0:66300c77c6e9	33	* OF SUCH DAMAGE.
tax	0:66300c77c6e9	34	*
tax	0:66300c77c6e9	35	* This file is part of the lwIP TCP/IP stack.
tax	0:66300c77c6e9	36	*
tax	0:66300c77c6e9	37	* Author: Adam Dunkels <adam@sics.se>
tax	0:66300c77c6e9	38	*
tax	0:66300c77c6e9	39	*/
tax	0:66300c77c6e9	40
tax	0:66300c77c6e9	41	#include "lwip/opt.h"
tax	0:66300c77c6e9	42
tax	0:66300c77c6e9	43	#if LWIP_RAW /* don't build if not configured for use in lwipopts.h */
tax	0:66300c77c6e9	44
tax	0:66300c77c6e9	45	#include "lwip/def.h"
tax	0:66300c77c6e9	46	#include "lwip/memp.h"
tax	0:66300c77c6e9	47	#include "lwip/ip_addr.h"
tax	0:66300c77c6e9	48	#include "lwip/netif.h"
tax	0:66300c77c6e9	49	#include "lwip/raw.h"
tax	0:66300c77c6e9	50	#include "lwip/stats.h"
tax	0:66300c77c6e9	51	#include "arch/perf.h"
tax	0:66300c77c6e9	52
tax	0:66300c77c6e9	53	#include <string.h>
tax	0:66300c77c6e9	54
tax	0:66300c77c6e9	55	/** The list of RAW PCBs */
tax	0:66300c77c6e9	56	static struct raw_pcb *raw_pcbs;
tax	0:66300c77c6e9	57
tax	0:66300c77c6e9	58	/**
tax	0:66300c77c6e9	59	* Determine if in incoming IP packet is covered by a RAW PCB
tax	0:66300c77c6e9	60	* and if so, pass it to a user-provided receive callback function.
tax	0:66300c77c6e9	61	*
tax	0:66300c77c6e9	62	* Given an incoming IP datagram (as a chain of pbufs) this function
tax	0:66300c77c6e9	63	* finds a corresponding RAW PCB and calls the corresponding receive
tax	0:66300c77c6e9	64	* callback function.
tax	0:66300c77c6e9	65	*
tax	0:66300c77c6e9	66	* @param p pbuf to be demultiplexed to a RAW PCB.
tax	0:66300c77c6e9	67	* @param inp network interface on which the datagram was received.
tax	0:66300c77c6e9	68	* @return - 1 if the packet has been eaten by a RAW PCB receive
tax	0:66300c77c6e9	69	* callback function. The caller MAY NOT not reference the
tax	0:66300c77c6e9	70	* packet any longer, and MAY NOT call pbuf_free().
tax	0:66300c77c6e9	71	* @return - 0 if packet is not eaten (pbuf is still referenced by the
tax	0:66300c77c6e9	72	* caller).
tax	0:66300c77c6e9	73	*
tax	0:66300c77c6e9	74	*/
tax	0:66300c77c6e9	75	u8_t
tax	0:66300c77c6e9	76	raw_input(struct pbuf p, struct netif inp)
tax	0:66300c77c6e9	77	{
tax	0:66300c77c6e9	78	struct raw_pcb pcb, prev;
tax	0:66300c77c6e9	79	struct ip_hdr *iphdr;
tax	0:66300c77c6e9	80	s16_t proto;
tax	0:66300c77c6e9	81	u8_t eaten = 0;
tax	0:66300c77c6e9	82
tax	0:66300c77c6e9	83	LWIP_UNUSED_ARG(inp);
tax	0:66300c77c6e9	84
tax	0:66300c77c6e9	85	iphdr = (struct ip_hdr *)p->payload;
tax	0:66300c77c6e9	86	proto = IPH_PROTO(iphdr);
tax	0:66300c77c6e9	87
tax	0:66300c77c6e9	88	prev = NULL;
tax	0:66300c77c6e9	89	pcb = raw_pcbs;
tax	0:66300c77c6e9	90	/* loop through all raw pcbs until the packet is eaten by one */
tax	0:66300c77c6e9	91	/* this allows multiple pcbs to match against the packet by design */
tax	0:66300c77c6e9	92	while ((eaten == 0) && (pcb != NULL)) {
tax	0:66300c77c6e9	93	if ((pcb->protocol == proto) &&
tax	0:66300c77c6e9	94	(ip_addr_isany(&pcb->local_ip) \|\|
tax	0:66300c77c6e9	95	ip_addr_cmp(&(pcb->local_ip), &current_iphdr_dest))) {
tax	0:66300c77c6e9	96	#if IP_SOF_BROADCAST_RECV
tax	0:66300c77c6e9	97	/* broadcast filter? */
tax	0:66300c77c6e9	98	if ((pcb->so_options & SOF_BROADCAST) \|\| !ip_addr_isbroadcast(&current_iphdr_dest, inp))
tax	0:66300c77c6e9	99	#endif /* IP_SOF_BROADCAST_RECV */
tax	0:66300c77c6e9	100	{
tax	0:66300c77c6e9	101	/* receive callback function available? */
tax	0:66300c77c6e9	102	if (pcb->recv != NULL) {
tax	0:66300c77c6e9	103	/* the receive callback function did not eat the packet? */
tax	0:66300c77c6e9	104	if (pcb->recv(pcb->recv_arg, pcb, p, ip_current_src_addr()) != 0) {
tax	0:66300c77c6e9	105	/* receive function ate the packet */
tax	0:66300c77c6e9	106	p = NULL;
tax	0:66300c77c6e9	107	eaten = 1;
tax	0:66300c77c6e9	108	if (prev != NULL) {
tax	0:66300c77c6e9	109	/* move the pcb to the front of raw_pcbs so that is
tax	0:66300c77c6e9	110	found faster next time */
tax	0:66300c77c6e9	111	prev->next = pcb->next;
tax	0:66300c77c6e9	112	pcb->next = raw_pcbs;
tax	0:66300c77c6e9	113	raw_pcbs = pcb;
tax	0:66300c77c6e9	114	}
tax	0:66300c77c6e9	115	}
tax	0:66300c77c6e9	116	}
tax	0:66300c77c6e9	117	/* no receive callback function was set for this raw PCB */
tax	0:66300c77c6e9	118	}
tax	0:66300c77c6e9	119	/* drop the packet */
tax	0:66300c77c6e9	120	}
tax	0:66300c77c6e9	121	prev = pcb;
tax	0:66300c77c6e9	122	pcb = pcb->next;
tax	0:66300c77c6e9	123	}
tax	0:66300c77c6e9	124	return eaten;
tax	0:66300c77c6e9	125	}
tax	0:66300c77c6e9	126
tax	0:66300c77c6e9	127	/**
tax	0:66300c77c6e9	128	* Bind a RAW PCB.
tax	0:66300c77c6e9	129	*
tax	0:66300c77c6e9	130	* @param pcb RAW PCB to be bound with a local address ipaddr.
tax	0:66300c77c6e9	131	* @param ipaddr local IP address to bind with. Use IP_ADDR_ANY to
tax	0:66300c77c6e9	132	* bind to all local interfaces.
tax	0:66300c77c6e9	133	*
tax	0:66300c77c6e9	134	* @return lwIP error code.
tax	0:66300c77c6e9	135	* - ERR_OK. Successful. No error occured.
tax	0:66300c77c6e9	136	* - ERR_USE. The specified IP address is already bound to by
tax	0:66300c77c6e9	137	* another RAW PCB.
tax	0:66300c77c6e9	138	*
tax	0:66300c77c6e9	139	* @see raw_disconnect()
tax	0:66300c77c6e9	140	*/
tax	0:66300c77c6e9	141	err_t
tax	0:66300c77c6e9	142	raw_bind(struct raw_pcb pcb, ip_addr_t ipaddr)
tax	0:66300c77c6e9	143	{
tax	0:66300c77c6e9	144	ip_addr_set(&pcb->local_ip, ipaddr);
tax	0:66300c77c6e9	145	return ERR_OK;
tax	0:66300c77c6e9	146	}
tax	0:66300c77c6e9	147
tax	0:66300c77c6e9	148	/**
tax	0:66300c77c6e9	149	* Connect an RAW PCB. This function is required by upper layers
tax	0:66300c77c6e9	150	* of lwip. Using the raw api you could use raw_sendto() instead
tax	0:66300c77c6e9	151	*
tax	0:66300c77c6e9	152	* This will associate the RAW PCB with the remote address.
tax	0:66300c77c6e9	153	*
tax	0:66300c77c6e9	154	* @param pcb RAW PCB to be connected with remote address ipaddr and port.
tax	0:66300c77c6e9	155	* @param ipaddr remote IP address to connect with.
tax	0:66300c77c6e9	156	*
tax	0:66300c77c6e9	157	* @return lwIP error code
tax	0:66300c77c6e9	158	*
tax	0:66300c77c6e9	159	* @see raw_disconnect() and raw_sendto()
tax	0:66300c77c6e9	160	*/
tax	0:66300c77c6e9	161	err_t
tax	0:66300c77c6e9	162	raw_connect(struct raw_pcb pcb, ip_addr_t ipaddr)
tax	0:66300c77c6e9	163	{
tax	0:66300c77c6e9	164	ip_addr_set(&pcb->remote_ip, ipaddr);
tax	0:66300c77c6e9	165	return ERR_OK;
tax	0:66300c77c6e9	166	}
tax	0:66300c77c6e9	167
tax	0:66300c77c6e9	168
tax	0:66300c77c6e9	169	/**
tax	0:66300c77c6e9	170	* Set the callback function for received packets that match the
tax	0:66300c77c6e9	171	* raw PCB's protocol and binding.
tax	0:66300c77c6e9	172	*
tax	0:66300c77c6e9	173	* The callback function MUST either
tax	0:66300c77c6e9	174	* - eat the packet by calling pbuf_free() and returning non-zero. The
tax	0:66300c77c6e9	175	* packet will not be passed to other raw PCBs or other protocol layers.
tax	0:66300c77c6e9	176	* - not free the packet, and return zero. The packet will be matched
tax	0:66300c77c6e9	177	* against further PCBs and/or forwarded to another protocol layers.
tax	0:66300c77c6e9	178	*
tax	0:66300c77c6e9	179	* @return non-zero if the packet was free()d, zero if the packet remains
tax	0:66300c77c6e9	180	* available for others.
tax	0:66300c77c6e9	181	*/
tax	0:66300c77c6e9	182	void
tax	0:66300c77c6e9	183	raw_recv(struct raw_pcb pcb, raw_recv_fn recv, void recv_arg)
tax	0:66300c77c6e9	184	{
tax	0:66300c77c6e9	185	/* remember recv() callback and user data */
tax	0:66300c77c6e9	186	pcb->recv = recv;
tax	0:66300c77c6e9	187	pcb->recv_arg = recv_arg;
tax	0:66300c77c6e9	188	}
tax	0:66300c77c6e9	189
tax	0:66300c77c6e9	190	/**
tax	0:66300c77c6e9	191	* Send the raw IP packet to the given address. Note that actually you cannot
tax	0:66300c77c6e9	192	* modify the IP headers (this is inconsistent with the receive callback where
tax	0:66300c77c6e9	193	* you actually get the IP headers), you can only specify the IP payload here.
tax	0:66300c77c6e9	194	* It requires some more changes in lwIP. (there will be a raw_send() function
tax	0:66300c77c6e9	195	* then.)
tax	0:66300c77c6e9	196	*
tax	0:66300c77c6e9	197	* @param pcb the raw pcb which to send
tax	0:66300c77c6e9	198	* @param p the IP payload to send
tax	0:66300c77c6e9	199	* @param ipaddr the destination address of the IP packet
tax	0:66300c77c6e9	200	*
tax	0:66300c77c6e9	201	*/
tax	0:66300c77c6e9	202	err_t
tax	0:66300c77c6e9	203	raw_sendto(struct raw_pcb pcb, struct pbuf p, ip_addr_t *ipaddr)
tax	0:66300c77c6e9	204	{
tax	0:66300c77c6e9	205	err_t err;
tax	0:66300c77c6e9	206	struct netif *netif;
tax	0:66300c77c6e9	207	ip_addr_t *src_ip;
tax	0:66300c77c6e9	208	struct pbuf q; / q will be sent down the stack */
tax	0:66300c77c6e9	209
tax	0:66300c77c6e9	210	LWIP_DEBUGF(RAW_DEBUG \| LWIP_DBG_TRACE, ("raw_sendto\n"));
tax	0:66300c77c6e9	211
tax	0:66300c77c6e9	212	/* not enough space to add an IP header to first pbuf in given p chain? */
tax	0:66300c77c6e9	213	if (pbuf_header(p, IP_HLEN)) {
tax	0:66300c77c6e9	214	/* allocate header in new pbuf */
tax	0:66300c77c6e9	215	q = pbuf_alloc(PBUF_IP, 0, PBUF_RAM);
tax	0:66300c77c6e9	216	/* new header pbuf could not be allocated? */
tax	0:66300c77c6e9	217	if (q == NULL) {
tax	0:66300c77c6e9	218	LWIP_DEBUGF(RAW_DEBUG \| LWIP_DBG_TRACE \| LWIP_DBG_LEVEL_SERIOUS, ("raw_sendto: could not allocate header\n"));
tax	0:66300c77c6e9	219	return ERR_MEM;
tax	0:66300c77c6e9	220	}
tax	0:66300c77c6e9	221	/* chain header q in front of given pbuf p */
tax	0:66300c77c6e9	222	pbuf_chain(q, p);
tax	0:66300c77c6e9	223	/* { first pbuf q points to header pbuf } */
tax	0:66300c77c6e9	224	LWIP_DEBUGF(RAW_DEBUG, ("raw_sendto: added header pbuf %p before given pbuf %p\n", (void )q, (void )p));
tax	0:66300c77c6e9	225	} else {
tax	0:66300c77c6e9	226	/* first pbuf q equals given pbuf */
tax	0:66300c77c6e9	227	q = p;
tax	0:66300c77c6e9	228	if(pbuf_header(q, -IP_HLEN)) {
tax	0:66300c77c6e9	229	LWIP_ASSERT("Can't restore header we just removed!", 0);
tax	0:66300c77c6e9	230	return ERR_MEM;
tax	0:66300c77c6e9	231	}
tax	0:66300c77c6e9	232	}
tax	0:66300c77c6e9	233
tax	0:66300c77c6e9	234	if ((netif = ip_route(ipaddr)) == NULL) {
tax	0:66300c77c6e9	235	LWIP_DEBUGF(RAW_DEBUG \| LWIP_DBG_LEVEL_WARNING, ("raw_sendto: No route to %"U16_F".%"U16_F".%"U16_F".%"U16_F"\n",
tax	0:66300c77c6e9	236	ip4_addr1_16(ipaddr), ip4_addr2_16(ipaddr), ip4_addr3_16(ipaddr), ip4_addr4_16(ipaddr)));
tax	0:66300c77c6e9	237	/* free any temporary header pbuf allocated by pbuf_header() */
tax	0:66300c77c6e9	238	if (q != p) {
tax	0:66300c77c6e9	239	pbuf_free(q);
tax	0:66300c77c6e9	240	}
tax	0:66300c77c6e9	241	return ERR_RTE;
tax	0:66300c77c6e9	242	}
tax	0:66300c77c6e9	243
tax	0:66300c77c6e9	244	#if IP_SOF_BROADCAST
tax	0:66300c77c6e9	245	/* broadcast filter? */
tax	0:66300c77c6e9	246	if (((pcb->so_options & SOF_BROADCAST) == 0) && ip_addr_isbroadcast(ipaddr, netif)) {
tax	0:66300c77c6e9	247	LWIP_DEBUGF(RAW_DEBUG \| LWIP_DBG_LEVEL_WARNING, ("raw_sendto: SOF_BROADCAST not enabled on pcb %p\n", (void *)pcb));
tax	0:66300c77c6e9	248	/* free any temporary header pbuf allocated by pbuf_header() */
tax	0:66300c77c6e9	249	if (q != p) {
tax	0:66300c77c6e9	250	pbuf_free(q);
tax	0:66300c77c6e9	251	}
tax	0:66300c77c6e9	252	return ERR_VAL;
tax	0:66300c77c6e9	253	}
tax	0:66300c77c6e9	254	#endif /* IP_SOF_BROADCAST */
tax	0:66300c77c6e9	255
tax	0:66300c77c6e9	256	if (ip_addr_isany(&pcb->local_ip)) {
tax	0:66300c77c6e9	257	/* use outgoing network interface IP address as source address */
tax	0:66300c77c6e9	258	src_ip = &(netif->ip_addr);
tax	0:66300c77c6e9	259	} else {
tax	0:66300c77c6e9	260	/* use RAW PCB local IP address as source address */
tax	0:66300c77c6e9	261	src_ip = &(pcb->local_ip);
tax	0:66300c77c6e9	262	}
tax	0:66300c77c6e9	263
tax	0:66300c77c6e9	264	#if LWIP_NETIF_HWADDRHINT
tax	0:66300c77c6e9	265	netif->addr_hint = &(pcb->addr_hint);
tax	0:66300c77c6e9	266	#endif /* LWIP_NETIF_HWADDRHINT*/
tax	0:66300c77c6e9	267	err = ip_output_if (q, src_ip, ipaddr, pcb->ttl, pcb->tos, pcb->protocol, netif);
tax	0:66300c77c6e9	268	#if LWIP_NETIF_HWADDRHINT
tax	0:66300c77c6e9	269	netif->addr_hint = NULL;
tax	0:66300c77c6e9	270	#endif /* LWIP_NETIF_HWADDRHINT*/
tax	0:66300c77c6e9	271
tax	0:66300c77c6e9	272	/* did we chain a header earlier? */
tax	0:66300c77c6e9	273	if (q != p) {
tax	0:66300c77c6e9	274	/* free the header */
tax	0:66300c77c6e9	275	pbuf_free(q);
tax	0:66300c77c6e9	276	}
tax	0:66300c77c6e9	277	return err;
tax	0:66300c77c6e9	278	}
tax	0:66300c77c6e9	279
tax	0:66300c77c6e9	280	/**
tax	0:66300c77c6e9	281	* Send the raw IP packet to the address given by raw_connect()
tax	0:66300c77c6e9	282	*
tax	0:66300c77c6e9	283	* @param pcb the raw pcb which to send
tax	0:66300c77c6e9	284	* @param p the IP payload to send
tax	0:66300c77c6e9	285	*
tax	0:66300c77c6e9	286	*/
tax	0:66300c77c6e9	287	err_t
tax	0:66300c77c6e9	288	raw_send(struct raw_pcb pcb, struct pbuf p)
tax	0:66300c77c6e9	289	{
tax	0:66300c77c6e9	290	return raw_sendto(pcb, p, &pcb->remote_ip);
tax	0:66300c77c6e9	291	}
tax	0:66300c77c6e9	292
tax	0:66300c77c6e9	293	/**
tax	0:66300c77c6e9	294	* Remove an RAW PCB.
tax	0:66300c77c6e9	295	*
tax	0:66300c77c6e9	296	* @param pcb RAW PCB to be removed. The PCB is removed from the list of
tax	0:66300c77c6e9	297	* RAW PCB's and the data structure is freed from memory.
tax	0:66300c77c6e9	298	*
tax	0:66300c77c6e9	299	* @see raw_new()
tax	0:66300c77c6e9	300	*/
tax	0:66300c77c6e9	301	void
tax	0:66300c77c6e9	302	raw_remove(struct raw_pcb *pcb)
tax	0:66300c77c6e9	303	{
tax	0:66300c77c6e9	304	struct raw_pcb *pcb2;
tax	0:66300c77c6e9	305	/* pcb to be removed is first in list? */
tax	0:66300c77c6e9	306	if (raw_pcbs == pcb) {
tax	0:66300c77c6e9	307	/* make list start at 2nd pcb */
tax	0:66300c77c6e9	308	raw_pcbs = raw_pcbs->next;
tax	0:66300c77c6e9	309	/* pcb not 1st in list */
tax	0:66300c77c6e9	310	} else {
tax	0:66300c77c6e9	311	for(pcb2 = raw_pcbs; pcb2 != NULL; pcb2 = pcb2->next) {
tax	0:66300c77c6e9	312	/* find pcb in raw_pcbs list */
tax	0:66300c77c6e9	313	if (pcb2->next != NULL && pcb2->next == pcb) {
tax	0:66300c77c6e9	314	/* remove pcb from list */
tax	0:66300c77c6e9	315	pcb2->next = pcb->next;
tax	0:66300c77c6e9	316	}
tax	0:66300c77c6e9	317	}
tax	0:66300c77c6e9	318	}
tax	0:66300c77c6e9	319	memp_free(MEMP_RAW_PCB, pcb);
tax	0:66300c77c6e9	320	}
tax	0:66300c77c6e9	321
tax	0:66300c77c6e9	322	/**
tax	0:66300c77c6e9	323	* Create a RAW PCB.
tax	0:66300c77c6e9	324	*
tax	0:66300c77c6e9	325	* @return The RAW PCB which was created. NULL if the PCB data structure
tax	0:66300c77c6e9	326	* could not be allocated.
tax	0:66300c77c6e9	327	*
tax	0:66300c77c6e9	328	* @param proto the protocol number of the IPs payload (e.g. IP_PROTO_ICMP)
tax	0:66300c77c6e9	329	*
tax	0:66300c77c6e9	330	* @see raw_remove()
tax	0:66300c77c6e9	331	*/
tax	0:66300c77c6e9	332	struct raw_pcb *
tax	0:66300c77c6e9	333	raw_new(u8_t proto)
tax	0:66300c77c6e9	334	{
tax	0:66300c77c6e9	335	struct raw_pcb *pcb;
tax	0:66300c77c6e9	336
tax	0:66300c77c6e9	337	LWIP_DEBUGF(RAW_DEBUG \| LWIP_DBG_TRACE, ("raw_new\n"));
tax	0:66300c77c6e9	338
tax	0:66300c77c6e9	339	pcb = (struct raw_pcb *)memp_malloc(MEMP_RAW_PCB);
tax	0:66300c77c6e9	340	/* could allocate RAW PCB? */
tax	0:66300c77c6e9	341	if (pcb != NULL) {
tax	0:66300c77c6e9	342	/* initialize PCB to all zeroes */
tax	0:66300c77c6e9	343	memset(pcb, 0, sizeof(struct raw_pcb));
tax	0:66300c77c6e9	344	pcb->protocol = proto;
tax	0:66300c77c6e9	345	pcb->ttl = RAW_TTL;
tax	0:66300c77c6e9	346	pcb->next = raw_pcbs;
tax	0:66300c77c6e9	347	raw_pcbs = pcb;
tax	0:66300c77c6e9	348	}
tax	0:66300c77c6e9	349	return pcb;
tax	0:66300c77c6e9	350	}
tax	0:66300c77c6e9	351
tax	0:66300c77c6e9	352	#endif /* LWIP_RAW */

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Type:	Program
Mbed OS support:	Mbed 2 deprecated
Created:	29 Mar 2011
Imports:	16
Forks:	0
Commits:	1
Dependents:	0
Dependencies:	1
Followers:	2

lwip/core/raw.c@0:66300c77c6e9, 2011-03-29 (annotated)

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