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net: cosmetic: Rename OPT_SIZE to OPT_FIELD_SIZE 

Clearer constant name.
Also remove related BOOTP_SIZE which was unused and doesn't take
into account VLAN packets.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
This commit is contained in:
Joe Hershberger 2012-05-23 07:58:14 +00:00
parent 0b4c5ff4ab
commit f8315731db
2 changed files with 8 additions and 9 deletions
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10
net/bootp.c
View File

@ -71,7 +71,7 @@ static int BootpCheckPkt(uchar *pkt, unsigned dest, unsigned src, unsigned len)
if (dest != PORT_BOOTPC || src != PORT_BOOTPS)
retval = -1;
else if (len < sizeof(struct Bootp_t) - OPT_SIZE)
else if (len < sizeof(struct Bootp_t) - OPT_FIELD_SIZE)
retval = -2;
else if (bp->bp_op != OP_BOOTREQUEST &&
bp->bp_op != OP_BOOTREPLY &&
@ -368,8 +368,8 @@ static int DhcpExtended(u8 *e, int message_type, IPaddr_t ServerID,
*e++ = 57; /* Maximum DHCP Message Size */
*e++ = 2;
*e++ = (576 - 312 + OPT_SIZE) >> 8;
*e++ = (576 - 312 + OPT_SIZE) & 0xff;
*e++ = (576 - 312 + OPT_FIELD_SIZE) >> 8;
*e++ = (576 - 312 + OPT_FIELD_SIZE) & 0xff;
if (ServerID) {
int tmp = ntohl(ServerID);
@ -519,8 +519,8 @@ static int BootpExtended(u8 *e)
*e++ = 57; /* Maximum DHCP Message Size */
*e++ = 2;
*e++ = (576 - 312 + OPT_SIZE) >> 16;
*e++ = (576 - 312 + OPT_SIZE) & 0xff;
*e++ = (576 - 312 + OPT_FIELD_SIZE) >> 16;
*e++ = (576 - 312 + OPT_FIELD_SIZE) & 0xff;
#endif
#if defined(CONFIG_BOOTP_SUBNETMASK)

7
net/bootp.h
View File

@ -20,13 +20,13 @@
*/
#if defined(CONFIG_CMD_DHCP)
/* Minimum DHCP Options size per RFC2131 - results in 576 byte pkt */
#define OPT_SIZE 312
#define OPT_FIELD_SIZE 312
#if defined(CONFIG_BOOTP_VENDOREX)
extern u8 *dhcp_vendorex_prep(u8 *e); /*rtn new e after add own opts. */
extern u8 *dhcp_vendorex_proc(u8 *e); /*rtn next e if mine,else NULL */
#endif
#else
#define OPT_SIZE 64
#define OPT_FIELD_SIZE 64
#endif
struct Bootp_t {
@ -48,11 +48,10 @@ struct Bootp_t {
uchar bp_chaddr[16]; /* Client hardware address */
char bp_sname[64]; /* Server host name */
char bp_file[128]; /* Boot file name */
char bp_vend[OPT_SIZE]; /* Vendor information */
char bp_vend[OPT_FIELD_SIZE]; /* Vendor information */
};
#define BOOTP_HDR_SIZE sizeof(struct Bootp_t)
#define BOOTP_SIZE (ETHER_HDR_SIZE + IP_UDP_HDR_SIZE + BOOTP_HDR_SIZE)
/**********************************************************************/
/*