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Network: All logic will now handle varialbe length link layer protocol headers within incoming packets. This permits use of multiple network interfaces with differing data links. For example, ETHERNET + SLIP

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This commit is contained in:
Gregory Nutt
2014-11-15 13:13:23 -06:00
parent 5d05b00fda
commit 2e55db369d
28 changed files with 144 additions and 90 deletions
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6
net/tcp/tcp_send.c
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@@ -62,7 +62,7 @@
* Pre-processor Definitions
****************************************************************************/
#define BUF ((struct tcp_iphdr_s *)&dev->d_buf[NET_LL_HDRLEN])
#define BUF ((struct tcp_iphdr_s *)&dev->d_buf[NET_LL_HDRLEN(dev)])
/****************************************************************************
* Public Variables
@@ -360,8 +360,8 @@ void tcp_ack(FAR struct net_driver_s *dev, FAR struct tcp_conn_s *conn,
pbuf->optdata[0] = TCP_OPT_MSS;
pbuf->optdata[1] = TCP_OPT_MSS_LEN;
pbuf->optdata[2] = (TCP_MSS) / 256;
pbuf->optdata[3] = (TCP_MSS) & 255;
pbuf->optdata[2] = TCP_MSS(dev) / 256;
pbuf->optdata[3] = TCP_MSS(dev) & 255;
dev->d_len = IPTCP_HDRLEN + TCP_OPT_MSS_LEN;
pbuf->tcpoffset = ((TCP_HDRLEN + TCP_OPT_MSS_LEN) / 4) << 4;