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net: cosmetic: Split struct ip_udp_hdr into ip_hdr

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Add a structure that only contains IP header fields to be used by
functions that don't need UDP
Rename IP_HDR_SIZE_NO_UDP to IP_HDR_SIZE

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
This commit is contained in:
Joe Hershberger
2012-05-23 07:58:05 +00:00
parent 594c26f8a7
commit c5c59df04d
3 changed files with 38 additions and 22 deletions
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10
net/ping.c
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@@ -44,7 +44,7 @@ static int ping_send(void)
/* IP_HDR_SIZE / 4 (not including UDP) */
ip->ip_hl_v = 0x45;
ip->ip_tos = 0;
ip->ip_len = htons(IP_HDR_SIZE_NO_UDP + 8);
ip->ip_len = htons(IP_HDR_SIZE + 8);
ip->ip_id = htons(NetIPID++);
ip->ip_off = htons(IP_FLAGS_DFRAG); /* Don't fragment */
ip->ip_ttl = 255;
@@ -54,7 +54,7 @@ static int ping_send(void)
NetCopyIP((void *)&ip->ip_src, &NetOurIP);
/* - "" - */
NetCopyIP((void *)&ip->ip_dst, &NetPingIP);
ip->ip_sum = ~NetCksum((uchar *)ip, IP_HDR_SIZE_NO_UDP / 2);
ip->ip_sum = ~NetCksum((uchar *)ip, IP_HDR_SIZE / 2);
s = &ip->udp_src; /* XXX ICMP starts here */
s[0] = htons(0x0800); /* echo-request, code */
@@ -65,7 +65,7 @@ static int ping_send(void)
/* size of the waiting packet */
NetArpWaitTxPacketSize =
(pkt - NetArpWaitTxPacket) + IP_HDR_SIZE_NO_UDP + 8;
(pkt - NetArpWaitTxPacket) + IP_HDR_SIZE + 8;
/* and do the ARP request */
NetArpWaitTry = 1;
@@ -125,12 +125,12 @@ void ping_receive(Ethernet_t *et, struct ip_udp_hdr *ip, int len)
NetCopyIP((void *)&ip->ip_dst, &ip->ip_src);
NetCopyIP((void *)&ip->ip_src, &NetOurIP);
ip->ip_sum = ~NetCksum((uchar *)ip,
IP_HDR_SIZE_NO_UDP >> 1);
IP_HDR_SIZE >> 1);
icmph->type = ICMP_ECHO_REPLY;
icmph->checksum = 0;
icmph->checksum = ~NetCksum((uchar *)icmph,
(len - IP_HDR_SIZE_NO_UDP) >> 1);
(len - IP_HDR_SIZE) >> 1);
(void) eth_send((uchar *)et,
ETHER_HDR_SIZE + len);
return;