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 Cc: Joe Hershberger joe.hershberger@gmail.com --- Changes for v2: - Split from "Improve variable names and code readability" Changes for v3:
net/bootp.c | 10 +++++----- net/bootp.h | 7 +++---- 2 files changed, 8 insertions(+), 9 deletions(-)
diff --git a/net/bootp.c b/net/bootp.c index 3285250..009369b 100644 --- a/net/bootp.c +++ b/net/bootp.c @@ -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) diff --git a/net/bootp.h b/net/bootp.h index 1cf9a02..ecbcc4d 100644 --- a/net/bootp.h +++ b/net/bootp.h @@ -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)
/**********************************************************************/ /*