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net/: Rename CONFIG_TCP_REASSEMBLY to CONFIG_IPv4_REASSEMBLY. Add some fixes to get a clen compile with CONFIG_IPv4_REASSEMBLY enabled. There are several problems with the current implementation: It is untested (and depends on CONFIG_EXPERMIMENTAL). It uses some Ethernet specific definitions (and depends on CONFIG_NET_ETHERNET). There is only a single reassembly buffer. The last two issues prevent use of this feature in any context where IPv4 packets may be reassembled for multiple network devices concurrently).

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This commit is contained in:
Gregory Nutt
2018-06-24 12:06:12 -06:00
parent fe592d502c
commit 433f29eea2
7 changed files with 80 additions and 59 deletions
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8
net/tcp/tcp_input.c
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@@ -111,7 +111,13 @@ static void tcp_input(FAR struct net_driver_s *dev, uint8_t domain,
tcp = (FAR struct tcp_hdr_s *)&dev->d_buf[iplen + NET_LL_HDRLEN(dev)];
/* Get the size of the IP header and the TCP header */
/* Get the size of the IP header and the TCP header.
*
* REVISIT: TCP header is *not* a constant! It can be larger if the
* TCP header includes options. The constand TCP_HDRLEN should be
* replaced with the macro TCP_OPT_HDRLEN(n) which will calculate the
* correct header length in all cases.
*/
tcpiplen = iplen + TCP_HDRLEN;