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patch #6888: Patch for UDP Netbufs to support dest-addr and dest-port

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This commit is contained in:
goldsimon 2009-10-07 17:58:30 +00:00
parent 9e5cf1cf8e
commit a9cbdc141b
5 changed files with 34 additions and 0 deletions
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4
CHANGELOG
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@ -19,6 +19,10 @@ HISTORY
++ New features:
2009-10-07 Simon Goldschmidt/Fabian Koch
* api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
2009-08-26 Simon Goldschmidt/Simon Kallweit
* slipif.c/.h: bug #26397: SLIP polling support

9
src/api/api_msg.c
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@ -168,6 +168,15 @@ recv_udp(void *arg, struct udp_pcb *pcb, struct pbuf *p,
buf->ptr = p;
buf->addr = addr;
buf->port = port;
#if LWIP_NETBUF_RECVINFO
{
const struct ip_hdr* iphdr = ip_current_header();
/* get the UDP header - always in the first pbuf, ensured by udp_input */
const struct udp_hdr* udphdr = (void*)(((char*)iphdr) + IPH_LEN(iphdr));
buf->toaddr = (struct ip_addr*)&iphdr->dest;
buf->toport = udphdr->dest;
}
#endif /* LWIP_NETBUF_RECVINFO */
}
if (sys_mbox_trypost(conn->recvmbox, buf) != ERR_OK) {

5
src/api/netbuf.c
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@ -62,6 +62,11 @@ netbuf *netbuf_new(void)
buf->p = NULL;
buf->ptr = NULL;
buf->addr = NULL;
buf->port = 0;
#if LWIP_NETBUF_RECVINFO
buf->toaddr = NULL;
buf->toport = 0;
#endif /* LWIP_NETBUF_RECVINFO */
return buf;
} else {
return NULL;

9
src/include/lwip/netbuf.h
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@ -34,6 +34,7 @@
#include "lwip/opt.h"
#include "lwip/pbuf.h"
#include "lwip/ip_addr.h"
#ifdef __cplusplus
extern "C" {
@ -43,6 +44,10 @@ struct netbuf {
struct pbuf *p, *ptr;
struct ip_addr *addr;
u16_t port;
#if LWIP_NETBUF_RECVINFO
struct ip_addr *toaddr;
u16_t toport;
#endif /* LWIP_NETBUF_RECVINFO */
};
/* Network buffer functions: */
@ -69,6 +74,10 @@ void netbuf_first (struct netbuf *buf);
#define netbuf_len(buf) ((buf)->p->tot_len)
#define netbuf_fromaddr(buf) ((buf)->addr)
#define netbuf_fromport(buf) ((buf)->port)
#if LWIP_NETBUF_RECVINFO
#define netbuf_destaddr(buf) ((buf)->toaddr)
#define netbuf_destport(buf) ((buf)->toport)
#endif /* LWIP_NETBUF_RECVINFO */
#ifdef __cplusplus
}

7
src/include/lwip/opt.h
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@ -728,6 +728,13 @@
#define UDP_TTL (IP_DEFAULT_TTL)
#endif
/**
* LWIP_NETBUF_RECVINFO==1: append destination addr and port to every netbuf.
*/
#ifndef LWIP_NETBUF_RECVINFO
#define LWIP_NETBUF_RECVINFO 0
#endif
/*
---------------------------------
---------- TCP options ----------