[net] cleanups:

 - remove cdp support
 - replace CONFIG_BOOTP_MASK with #ifdef CONFIG_...

3 files changed, 28 insertions, 443 deletions

diff --git a/net/bootp.c b/net/bootp.c
index 7340ed9875..a2415fb88b 100644
--- a/net/bootp.c
+++ b/net/bootp.c
@@ -58,7 +58,7 @@ static void DhcpHandler(uchar * pkt, unsigned dest, unsigned src, unsigned len);
 
 /* For Debug */
 
-#if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_VENDOREX)
+#ifdef 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
@@ -163,7 +163,7 @@ static void BootpVendorFieldProcess (u8 * ext)
 		if (NetOurDNSIP == 0) {
 			NetCopyIP (&NetOurDNSIP, (IPaddr_t *) (ext + 2));
 		}
-#if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_DNS2)
+#ifdef CONFIG_BOOTP_DNS2
 		if ((NetOurDNS2IP == 0) && (size > 4)) {
 			NetCopyIP (&NetOurDNS2IP, (IPaddr_t *) (ext + 2 + 4));
 		}
@@ -347,10 +347,10 @@ static int DhcpExtended (u8 * e, int message_type, IPaddr_t ServerID, IPaddr_t R
 	u8 *start = e;
 	u8 *cnt;
 
-#if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_VENDOREX)
+#ifdef CONFIG_BOOTP_VENDOREX
 	u8 *x;
 #endif
-#if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_SEND_HOSTNAME)
+#ifdef CONFIG_BOOTP_SEND_HOSTNAME
 	char *hostname;
 #endif
 
@@ -389,7 +389,7 @@ static int DhcpExtended (u8 * e, int message_type, IPaddr_t ServerID, IPaddr_t R
 		*e++ = tmp >> 8;
 		*e++ = tmp & 0xff;
 	}
-#if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_SEND_HOSTNAME)
+#ifdef CONFIG_BOOTP_SEND_HOSTNAME
 	if ((hostname = getenv ("hostname"))) {
 		int hostnamelen = strlen (hostname);
 
@@ -400,7 +400,7 @@ static int DhcpExtended (u8 * e, int message_type, IPaddr_t ServerID, IPaddr_t R
 	}
 #endif
 
-#if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_VENDOREX)
+#ifdef CONFIG_BOOTP_VENDOREX
 	if ((x = dhcp_vendorex_prep (e)))
 		return x - start;
 #endif
@@ -408,39 +408,39 @@ static int DhcpExtended (u8 * e, int message_type, IPaddr_t ServerID, IPaddr_t R
 	*e++ = 55;		/* Parameter Request List */
 	 cnt = e++;		/* Pointer to count of requested items */
 	*cnt = 0;
-#if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_SUBNETMASK)
+#ifdef CONFIG_BOOTP_SUBNETMASK
 	*e++  = 1;		/* Subnet Mask */
 	*cnt += 1;
 #endif
-#if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_TIMEOFFSET)
+#ifdef CONFIG_BOOTP_TIMEOFFSET
 	*e++  = 2;
 	*cnt += 1;
 #endif
-#if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_GATEWAY)
+#ifdef CONFIG_BOOTP_GATEWAY
 	*e++  = 3;		/* Router Option */
 	*cnt += 1;
 #endif
-#if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_DNS)
+#ifdef CONFIG_BOOTP_DNS
 	*e++  = 6;		/* DNS Server(s) */
 	*cnt += 1;
 #endif
-#if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_HOSTNAME)
+#ifdef CONFIG_BOOTP_HOSTNAME
 	*e++  = 12;		/* Hostname */
 	*cnt += 1;
 #endif
-#if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_BOOTFILESIZE)
+#ifdef CONFIG_BOOTP_BOOTFILESIZE
 	*e++  = 13;		/* Boot File Size */
 	*cnt += 1;
 #endif
-#if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_BOOTPATH)
+#ifdef CONFIG_BOOTP_BOOTPATH
 	*e++  = 17;		/* Boot path */
 	*cnt += 1;
 #endif
-#if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_NISDOMAIN)
+#ifdef CONFIG_BOOTP_NISDOMAIN
 	*e++  = 40;		/* NIS Domain name request */
 	*cnt += 1;
 #endif
-#if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_NTPSERVER)
+#ifdef CONFIG_BOOTP_NTPSERVER
 	*e++  = 42;
 	*cnt += 1;
 #endif
@@ -479,43 +479,43 @@ static int BootpExtended (u8 * e)
 	*e++ = (576 - 312 + OPT_SIZE) & 0xff;
 #endif /* CFG_CMD_DHCP */
 
-#if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_SUBNETMASK)
+#ifdef CONFIG_BOOTP_SUBNETMASK
 	*e++ = 1;		/* Subnet mask request */
 	*e++ = 4;
 	e   += 4;
 #endif
 
-#if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_GATEWAY)
+#ifdef CONFIG_BOOTP_GATEWAY
 	*e++ = 3;		/* Default gateway request */
 	*e++ = 4;
 	e   += 4;
 #endif
 
-#if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_DNS)
+#ifdef CONFIG_BOOTP_DNS
 	*e++ = 6;		/* Domain Name Server */
 	*e++ = 4;
 	e   += 4;
 #endif
 
-#if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_HOSTNAME)
+#ifdef CONFIG_BOOTP_HOSTNAME
 	*e++ = 12;		/* Host name request */
 	*e++ = 32;
 	e   += 32;
 #endif
 
-#if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_BOOTFILESIZE)
+#ifdef CONFIG_BOOTP_BOOTFILESIZE
 	*e++ = 13;		/* Boot file size */
 	*e++ = 2;
 	e   += 2;
 #endif
 
-#if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_BOOTPATH)
+#ifdef CONFIG_BOOTP_BOOTPATH
 	*e++ = 17;		/* Boot path */
 	*e++ = 32;
 	e   += 32;
 #endif
 
-#if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_NISDOMAIN)
+#ifdef CONFIG_BOOTP_NISDOMAIN
 	*e++ = 40;		/* NIS Domain name request */
 	*e++ = 32;
 	e   += 32;
@@ -616,7 +616,7 @@ static void DhcpOptionsProcess (uchar * popt, Bootp_t *bp)
 		case 1:
 			NetCopyIP (&NetOurSubnetMask, (popt + 2));
 			break;
-#if (CONFIG_COMMANDS & CFG_CMD_SNTP) && (CONFIG_BOOTP_MASK & CONFIG_BOOTP_TIMEOFFSET)
+#if defined CONFIG_NET_SNTP && defined CONFIG_BOOTP_TIMEOFFSET
 		case 2:		/* Time offset	*/
 			NetCopyLong (&NetTimeOffset, (ulong *) (popt + 2));
 			NetTimeOffset = ntohl (NetTimeOffset);
@@ -627,7 +627,7 @@ static void DhcpOptionsProcess (uchar * popt, Bootp_t *bp)
 			break;
 		case 6:
 			NetCopyIP (&NetOurDNSIP, (popt + 2));
-#if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_DNS2)
+#ifdef CONFIG_BOOTP_DNS2
 			if (*(popt + 1) > 4) {
 				NetCopyIP (&NetOurDNS2IP, (popt + 2 + 4));
 			}
@@ -645,7 +645,7 @@ static void DhcpOptionsProcess (uchar * popt, Bootp_t *bp)
 			memcpy (&NetOurRootPath, popt + 2, size);
 			NetOurRootPath[size] = 0;
 			break;
-#if (CONFIG_COMMANDS & CFG_CMD_SNTP) && (CONFIG_BOOTP_MASK & CONFIG_BOOTP_NTPSERVER)
+#if defined CONFIG_NET_SNTP && defined CONFIG_BOOTP_NTPSERVER
 		case 42:	/* NTP server IP */
 			NetCopyIP (&NetNtpServerIP, (popt + 2));
 			break;
@@ -691,7 +691,7 @@ static void DhcpOptionsProcess (uchar * popt, Bootp_t *bp)
 			}
 			break;
 		default:
-#if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_VENDOREX)
+#ifdef CONFIG_BOOTP_VENDOREX
 			if (dhcp_vendorex_proc (popt))
 				break;
 #endif
diff --git a/net/bootp.h b/net/bootp.h
index 0b3163901e..f5529f7ecc 100644
--- a/net/bootp.h
+++ b/net/bootp.h
@@ -18,7 +18,7 @@
 /*
  *	BOOTP header.
  */
-#if (CONFIG_COMMANDS & CFG_CMD_DHCP)
+#ifdef CONFIG_NET_DHCP
 #define OPT_SIZE 312	/* Minimum DHCP Options size per RFC2131 - results in 576 byte pkt */
 #else
 #define OPT_SIZE 64
diff --git a/net/net.c b/net/net.c
index e970238603..3c90503347 100644
--- a/net/net.c
+++ b/net/net.c
@@ -107,7 +107,7 @@
 IPaddr_t	NetOurSubnetMask=0;		/* Our subnet mask (0=unknown)	*/
 IPaddr_t	NetOurGatewayIP=0;		/* Our gateways IP address	*/
 IPaddr_t	NetOurDNSIP=0;			/* Our DNS IP address		*/
-#if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_DNS2)
+#ifdef CONFIG_BOOTP_DNS2
 IPaddr_t	NetOurDNS2IP=0;			/* Our 2nd DNS IP address	*/
 #endif
 char		NetOurNISDomain[32]={0,};	/* Our NIS domain		*/
@@ -130,10 +130,6 @@ uchar		NetBcastAddr[6] =	/* Ethernet bcast address		*/
 			{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
 uchar		NetEtherNullAddr[6] =
 			{ 0, 0, 0, 0, 0, 0 };
-#if (CONFIG_COMMANDS & CFG_CMD_CDP)
-uchar		NetCDPAddr[6] =		/* Ethernet bcast address		*/
-			{ 0x01, 0x00, 0x0c, 0xcc, 0xcc, 0xcc };
-#endif
 int		NetState;		/* Network loop state			*/
 
 /* XXX in both little & big endian machines 0xFFFF == ntohs(-1) */
@@ -148,10 +144,6 @@ IPaddr_t	NetPingIP;		/* the ip address to ping 		*/
 extern void PingStart(void);
 #endif
 
-#if (CONFIG_COMMANDS & CFG_CMD_CDP)
-static void CDPStart(void);
-#endif
-
 #ifdef CONFIG_NET_SNTP
 IPaddr_t	NetNtpServerIP;		/* NTP server IP address		*/
 int		NetTimeOffset=0;	/* offset time from UTC			*/
@@ -358,10 +350,6 @@ restart:
 		NetServerIP = dev_get_param_ip(eth_current->dev, "serverip");
 		NetOurVLAN = getenv_VLAN("vlan");	/* VLANs must be read */
 		NetOurNativeVLAN = getenv_VLAN("nvlan");
-	case CDP:
-		NetOurVLAN = getenv_VLAN("vlan");	/* VLANs must be read */
-		NetOurNativeVLAN = getenv_VLAN("nvlan");
-		break;
 	default:
 		break;
 	}
@@ -410,11 +398,6 @@ restart:
 			NfsStart();
 			break;
 #endif
-#if (CONFIG_COMMANDS & CFG_CMD_CDP)
-		case CDP:
-			CDPStart();
-			break;
-#endif
 #ifdef CONFIG_NETCONSOLE
 		case NETCONS:
 			NcStart();
@@ -433,19 +416,6 @@ restart:
 		break;
 	}
 
-#if defined(CONFIG_MII) || (CONFIG_COMMANDS & CFG_CMD_MII)
-#if defined(CFG_FAULT_ECHO_LINK_DOWN) && defined(CONFIG_STATUS_LED) && defined(STATUS_LED_RED)
-	/*
-	 * Echo the inverted link state to the fault LED.
-	 */
-	if(miiphy_link(eth_get_dev()->name, CFG_FAULT_MII_ADDR)) {
-		status_led_set (STATUS_LED_RED, STATUS_LED_OFF);
-	} else {
-		status_led_set (STATUS_LED_RED, STATUS_LED_ON);
-	}
-#endif /* CFG_FAULT_ECHO_LINK_DOWN, ... */
-#endif /* CONFIG_MII, ... */
-
 	/*
 	 *	Main packet reception loop.  Loop receiving packets until
 	 *	someone sets `NetState' to a state that terminates.
@@ -481,21 +451,6 @@ restart:
 		 */
 		if (timeHandler && is_timeout(timeStart, timeDelta)) {
 			thand_f *x;
-
-#if defined(CONFIG_MII) || (CONFIG_COMMANDS & CFG_CMD_MII)
-#  if defined(CFG_FAULT_ECHO_LINK_DOWN) && \
-      defined(CONFIG_STATUS_LED) &&	   \
-      defined(STATUS_LED_RED)
-			/*
-			 * Echo the inverted link state to the fault LED.
-			 */
-			if(miiphy_link(eth_get_dev()->name, CFG_FAULT_MII_ADDR)) {
-				status_led_set (STATUS_LED_RED, STATUS_LED_OFF);
-			} else {
-				status_led_set (STATUS_LED_RED, STATUS_LED_ON);
-			}
-#  endif /* CFG_FAULT_ECHO_LINK_DOWN, ... */
-#endif /* CONFIG_MII, ... */
 			x = timeHandler;
 			timeHandler = (thand_f *)0;
 			(*x)();
@@ -639,357 +594,6 @@ NetSendUDPPacket(uchar *ether, IPaddr_t dest, int dport, int sport, int len)
 	return 0;	/* transmitted */
 }
 
-#if (CONFIG_COMMANDS & CFG_CMD_CDP)
-
-#define CDP_DEVICE_ID_TLV		0x0001
-#define CDP_ADDRESS_TLV			0x0002
-#define CDP_PORT_ID_TLV			0x0003
-#define CDP_CAPABILITIES_TLV		0x0004
-#define CDP_VERSION_TLV			0x0005
-#define CDP_PLATFORM_TLV		0x0006
-#define CDP_NATIVE_VLAN_TLV		0x000a
-#define CDP_APPLIANCE_VLAN_TLV		0x000e
-#define CDP_TRIGGER_TLV			0x000f
-#define CDP_POWER_CONSUMPTION_TLV	0x0010
-#define CDP_SYSNAME_TLV			0x0014
-#define CDP_SYSOBJECT_TLV		0x0015
-#define CDP_MANAGEMENT_ADDRESS_TLV	0x0016
-
-#define CDP_TIMEOUT			(250 * MSECOND)	/* one packet every 250ms */
-
-static int CDPSeq;
-static int CDPOK;
-
-ushort CDPNativeVLAN;
-ushort CDPApplianceVLAN;
-
-static const uchar CDP_SNAP_hdr[8] = { 0xAA, 0xAA, 0x03, 0x00, 0x00, 0x0C, 0x20, 0x00 };
-
-static ushort CDP_compute_csum(const uchar *buff, ushort len)
-{
-	ushort csum;
-	int     odd;
-	ulong   result = 0;
-	ushort  leftover;
-	ushort *p;
-
-	if (len > 0) {
-		odd = 1 & (ulong)buff;
-		if (odd) {
-			result = *buff << 8;
-			len--;
-			buff++;
-		}
-		while (len > 1) {
-			p = (ushort *)buff;
-			result += *p++;
-			buff = (uchar *)p;
-			if (result & 0x80000000)
-				result = (result & 0xFFFF) + (result >> 16);
-			len -= 2;
-		}
-		if (len) {
-			leftover = (signed short)(*(const signed char *)buff);
-			/* CISCO SUCKS big time! (and blows too):
-			 * CDP uses the IP checksum algorithm with a twist;
-			 * for the last byte it *sign* extends and sums.
-			 */
-			result = (result & 0xffff0000) | ((result + leftover) & 0x0000ffff);
-		}
-		while (result >> 16)
-			result = (result & 0xFFFF) + (result >> 16);
-
-		if (odd)
-			result = ((result >> 8) & 0xff) | ((result & 0xff) << 8);
-	}
-
-	/* add up 16-bit and 17-bit words for 17+c bits */
-	result = (result & 0xffff) + (result >> 16);
-	/* add up 16-bit and 2-bit for 16+c bit */
-	result = (result & 0xffff) + (result >> 16);
-	/* add up carry.. */
-	result = (result & 0xffff) + (result >> 16);
-
-	/* negate */
-	csum = ~(ushort)result;
-
-	/* run time endian detection */
-	if (csum != htons(csum))	/* little endian */
-		csum = htons(csum);
-
-	return csum;
-}
-
-int CDPSendTrigger(void)
-{
-	uchar *pkt;
-	ushort *s;
-	ushort *cp;
-	Ethernet_t *et;
-	int len;
-	ushort chksum;
-#if defined(CONFIG_CDP_DEVICE_ID) || defined(CONFIG_CDP_PORT_ID)   || \
-    defined(CONFIG_CDP_VERSION)   || defined(CONFIG_CDP_PLATFORM)
-	char buf[32];
-#endif
-
-	pkt = NetTxPacket;
-	et = (Ethernet_t *)pkt;
-
-	/* NOTE: trigger sent not on any VLAN */
-
-	/* form ethernet header */
-	memcpy(et->et_dest, NetCDPAddr, 6);
-	memcpy(et->et_src, NetOurEther, 6);
-
-	pkt += ETHER_HDR_SIZE;
-
-	/* SNAP header */
-	memcpy((uchar *)pkt, CDP_SNAP_hdr, sizeof(CDP_SNAP_hdr));
-	pkt += sizeof(CDP_SNAP_hdr);
-
-	/* CDP header */
-	*pkt++ = 0x02;				/* CDP version 2 */
-	*pkt++ = 180;				/* TTL */
-	s = (ushort *)pkt;
-	cp = s;
-	*s++ = htons(0);			/* checksum (0 for later calculation) */
-
-	/* CDP fields */
-#ifdef CONFIG_CDP_DEVICE_ID
-	*s++ = htons(CDP_DEVICE_ID_TLV);
-	*s++ = htons(CONFIG_CDP_DEVICE_ID);
-	memset(buf, 0, sizeof(buf));
-	sprintf(buf, CONFIG_CDP_DEVICE_ID_PREFIX "%02X%02X%02X%02X%02X%02X",
-		NetOurEther[0] & 0xff, NetOurEther[1] & 0xff,
-		NetOurEther[2] & 0xff, NetOurEther[3] & 0xff,
-		NetOurEther[4] & 0xff, NetOurEther[5] & 0xff);
-	memcpy((uchar *)s, buf, 16);
-	s += 16 / 2;
-#endif
-
-#ifdef CONFIG_CDP_PORT_ID
-	*s++ = htons(CDP_PORT_ID_TLV);
-	memset(buf, 0, sizeof(buf));
-	sprintf(buf, CONFIG_CDP_PORT_ID, eth_get_dev_index());
-	len = strlen(buf);
-	if (len & 1)	/* make it even */
-		len++;
-	*s++ = htons(len + 4);
-	memcpy((uchar *)s, buf, len);
-	s += len / 2;
-#endif
-
-#ifdef CONFIG_CDP_CAPABILITIES
-	*s++ = htons(CDP_CAPABILITIES_TLV);
-	*s++ = htons(8);
-	*(ulong *)s = htonl(CONFIG_CDP_CAPABILITIES);
-	s += 2;
-#endif
-
-#ifdef CONFIG_CDP_VERSION
-	*s++ = htons(CDP_VERSION_TLV);
-	memset(buf, 0, sizeof(buf));
-	strcpy(buf, CONFIG_CDP_VERSION);
-	len = strlen(buf);
-	if (len & 1)	/* make it even */
-		len++;
-	*s++ = htons(len + 4);
-	memcpy((uchar *)s, buf, len);
-	s += len / 2;
-#endif
-
-#ifdef CONFIG_CDP_PLATFORM
-	*s++ = htons(CDP_PLATFORM_TLV);
-	memset(buf, 0, sizeof(buf));
-	strcpy(buf, CONFIG_CDP_PLATFORM);
-	len = strlen(buf);
-	if (len & 1)	/* make it even */
-		len++;
-	*s++ = htons(len + 4);
-	memcpy((uchar *)s, buf, len);
-	s += len / 2;
-#endif
-
-#ifdef CONFIG_CDP_TRIGGER
-	*s++ = htons(CDP_TRIGGER_TLV);
-	*s++ = htons(8);
-	*(ulong *)s = htonl(CONFIG_CDP_TRIGGER);
-	s += 2;
-#endif
-
-#ifdef CONFIG_CDP_POWER_CONSUMPTION
-	*s++ = htons(CDP_POWER_CONSUMPTION_TLV);
-	*s++ = htons(6);
-	*s++ = htons(CONFIG_CDP_POWER_CONSUMPTION);
-#endif
-
-	/* length of ethernet packet */
-	len = (uchar *)s - ((uchar *)NetTxPacket + ETHER_HDR_SIZE);
-	et->et_protlen = htons(len);
-
-	len = ETHER_HDR_SIZE + sizeof(CDP_SNAP_hdr);
-	chksum = CDP_compute_csum((uchar *)NetTxPacket + len, (uchar *)s - (NetTxPacket + len));
-	if (chksum == 0)
-		chksum = 0xFFFF;
-	*cp = htons(chksum);
-
-	(void) eth_send(NetTxPacket, (uchar *)s - NetTxPacket);
-	return 0;
-}
-
-static void
-CDPTimeout (void)
-{
-	CDPSeq++;
-
-	if (CDPSeq < 3) {
-		NetSetTimeout (CDP_TIMEOUT, CDPTimeout);
-		CDPSendTrigger();
-		return;
-	}
-
-	/* if not OK try again */
-	if (!CDPOK)
-		NetStartAgain();
-	else
-		NetState = NETLOOP_SUCCESS;
-}
-
-static void
-CDPDummyHandler (uchar * pkt, unsigned dest, unsigned src, unsigned len)
-{
-	/* nothing */
-}
-
-static void
-CDPHandler(const uchar * pkt, unsigned len)
-{
-	const uchar *t;
-	const ushort *ss;
-	ushort type, tlen;
-	uchar applid;
-	ushort vlan, nvlan;
-
-	/* minimum size? */
-	if (len < sizeof(CDP_SNAP_hdr) + 4)
-		goto pkt_short;
-
-	/* check for valid CDP SNAP header */
-	if (memcmp(pkt, CDP_SNAP_hdr, sizeof(CDP_SNAP_hdr)) != 0)
-		return;
-
-	pkt += sizeof(CDP_SNAP_hdr);
-	len -= sizeof(CDP_SNAP_hdr);
-
-	/* Version of CDP protocol must be >= 2 and TTL != 0 */
-	if (pkt[0] < 0x02 || pkt[1] == 0)
-		return;
-
-	/* if version is greater than 0x02 maybe we'll have a problem; output a warning */
-	if (pkt[0] != 0x02)
-		printf("** WARNING: CDP packet received with a protocol version %d > 2\n",
-				pkt[0] & 0xff);
-
-	if (CDP_compute_csum(pkt, len) != 0)
-		return;
-
-	pkt += 4;
-	len -= 4;
-
-	vlan = htons(-1);
-	nvlan = htons(-1);
-	while (len > 0) {
-		if (len < 4)
-			goto pkt_short;
-
-		ss = (const ushort *)pkt;
-		type = ntohs(ss[0]);
-		tlen = ntohs(ss[1]);
-		if (tlen > len) {
-			goto pkt_short;
-		}
-
-		pkt += tlen;
-		len -= tlen;
-
-		ss += 2;	/* point ss to the data of the TLV */
-		tlen -= 4;
-
-		switch (type) {
-			case CDP_DEVICE_ID_TLV:
-				break;
-			case CDP_ADDRESS_TLV:
-				break;
-			case CDP_PORT_ID_TLV:
-				break;
-			case CDP_CAPABILITIES_TLV:
-				break;
-			case CDP_VERSION_TLV:
-				break;
-			case CDP_PLATFORM_TLV:
-				break;
-			case CDP_NATIVE_VLAN_TLV:
-				nvlan = *ss;
-				break;
-			case CDP_APPLIANCE_VLAN_TLV:
-				t = (const uchar *)ss;
-				while (tlen > 0) {
-					if (tlen < 3)
-						goto pkt_short;
-
-					applid = t[0];
-					ss = (const ushort *)(t + 1);
-
-#ifdef CONFIG_CDP_APPLIANCE_VLAN_TYPE
-					if (applid == CONFIG_CDP_APPLIANCE_VLAN_TYPE)
-						vlan = *ss;
-#else
-					vlan = ntohs(*ss);	/* XXX will this work; dunno */
-#endif
-					t += 3; tlen -= 3;
-				}
-				break;
-			case CDP_TRIGGER_TLV:
-				break;
-			case CDP_POWER_CONSUMPTION_TLV:
-				break;
-			case CDP_SYSNAME_TLV:
-				break;
-			case CDP_SYSOBJECT_TLV:
-				break;
-			case CDP_MANAGEMENT_ADDRESS_TLV:
-				break;
-		}
-	}
-
-	CDPApplianceVLAN = vlan;
-	CDPNativeVLAN = nvlan;
-
-	CDPOK = 1;
-	return;
-
- pkt_short:
-	printf("** CDP packet is too short\n");
-	return;
-}
-
-static void CDPStart(void)
-{
-	CDPSeq = 0;
-	CDPOK = 0;
-
-	CDPNativeVLAN = htons(-1);
-	CDPApplianceVLAN = htons(-1);
-
-	NetSetTimeout (CDP_TIMEOUT, CDPTimeout);
-	NetSetHandler (CDPDummyHandler);
-
-	CDPSendTrigger();
-}
-#endif	/* CFG_CMD_CDP */
-
-
 void
 NetReceive(uchar * inpkt, int len)
 {
@@ -999,9 +603,6 @@ NetReceive(uchar * inpkt, int len)
 	IPaddr_t tmp;
 	int	x;
 	uchar *pkt;
-#if (CONFIG_COMMANDS & CFG_CMD_CDP)
-	int iscdp;
-#endif
 	ushort cti = 0, vlanid = VLAN_NONE, myvlanid, mynvlanid;
 
 #ifdef ET_DEBUG
@@ -1016,11 +617,6 @@ NetReceive(uchar * inpkt, int len)
 	if (len < ETHER_HDR_SIZE)
 		return;
 
-#if (CONFIG_COMMANDS & CFG_CMD_CDP)
-	/* keep track if packet is CDP */
-	iscdp = memcmp(et->et_dest, NetCDPAddr, 6) == 0;
-#endif
-
 	myvlanid = ntohs(NetOurVLAN);
 	if (myvlanid == (ushort)-1)
 		myvlanid = VLAN_NONE;
@@ -1059,9 +655,6 @@ NetReceive(uchar * inpkt, int len)
 
 		/* if no VLAN active */
 		if ((ntohs(NetOurVLAN) & VLAN_IDMASK) == VLAN_NONE
-#if (CONFIG_COMMANDS & CFG_CMD_CDP)
-				&& iscdp == 0
-#endif
 				)
 			return;
 
@@ -1077,13 +670,6 @@ NetReceive(uchar * inpkt, int len)
 	printf("Receive from protocol 0x%x\n", x);
 #endif
 
-#if (CONFIG_COMMANDS & CFG_CMD_CDP)
-	if (iscdp) {
-		CDPHandler((uchar *)ip, len);
-		return;
-	}
-#endif
-
 	if ((myvlanid & VLAN_IDMASK) != VLAN_NONE) {
 		if (vlanid == VLAN_NONE)
 			vlanid = (mynvlanid & VLAN_IDMASK);
@@ -1393,7 +979,6 @@ static int net_check_prereq (proto_t protocol)
 	case DHCP:
 	case RARP:
 	case BOOTP:
-	case CDP:
 		if (memcmp (NetOurEther, "\0\0\0\0\0\0", 6) == 0) {
 			printf("*** ERROR: `%s.ethaddr' not set\n", ethid);
 			return (1);