1 files changed, 151 insertions, 0 deletions
diff --git a/src/cmd/ip/dhcp.h b/src/cmd/ip/dhcp.h
new file mode 100755
index 00000000..8b517958
--- /dev/null
+++ b/src/cmd/ip/dhcp.h
@@ -0,0 +1,151 @@
+
+enum
+{
+	OfferTimeout=	60,		/* when an offer times out */
+	MaxLease=	60*60,		/* longest lease for dynamic binding */
+	MinLease=	15*60,		/* shortest lease for dynamic binding */
+	StaticLease=	30*60,		/* lease for static binding */
+
+	IPUDPHDRSIZE=	28,		/* size of an IP plus UDP header */
+	MINSUPPORTED=	576,		/* biggest IP message the client must support */
+
+	/* lengths of some bootp fields */
+	Maxhwlen=	16,
+	Maxfilelen=	128,
+	Maxoptlen=	312-4,
+
+	/* bootp types */
+	Bootrequest=	1,
+	Bootreply= 	2,
+
+	/* bootp flags */
+	Fbroadcast=	1<<15,
+
+	/* dhcp types */
+	Discover=	1,
+	Offer=		2,
+	Request=	3,
+	Decline=	4,
+	Ack=		5,
+	Nak=		6,
+	Release=	7,
+	Inform=		8,
+
+	/* bootp option types */
+	OBend=			255,
+	OBpad=			0,
+	OBmask=			1,
+	OBtimeoff=		2,
+	OBrouter=		3,
+	OBtimeserver=		4,
+	OBnameserver=		5,
+	OBdnserver=		6,
+	OBlogserver=		7,
+	OBcookieserver=		8,
+	OBlprserver=		9,
+	OBimpressserver=	10,
+	OBrlserver=		11,
+	OBhostname=		12,	/* 0xc0 */
+	OBbflen=		13,
+	OBdumpfile=		14,
+	OBdomainname=		15,
+	OBswapserver=		16,	/* 0x10 */
+	OBrootpath=		17,
+	OBextpath=		18,
+	OBipforward=		19,
+	OBnonlocal=		20,
+	OBpolicyfilter=		21,
+	OBmaxdatagram=		22,
+	OBttl=			23,
+	OBpathtimeout=		24,
+	OBpathplateau=		25,
+	OBmtu=			26,
+	OBsubnetslocal=		27,
+	OBbaddr=		28,
+	OBdiscovermask=		29,
+	OBsupplymask=		30,
+	OBdiscoverrouter=	31,
+	OBrsserver=		32,	/* 0x20 */
+	OBstaticroutes=		33,
+	OBtrailerencap=		34,
+	OBarptimeout=		35,
+	OBetherencap=		36,
+	OBtcpttl=		37,
+	OBtcpka=		38,
+	OBtcpkag=		39,
+	OBnisdomain=		40,
+	OBniserver=		41,	
+	OBntpserver=		42,
+	OBvendorinfo=		43,	/* 0x2b */
+	OBnetbiosns=		44,
+	OBnetbiosdds=		45,
+	OBnetbiostype=		46,
+	OBnetbiosscope=		47,
+	OBxfontserver=		48,	/* 0x30 */
+	OBxdispmanager=		49,
+	OBnisplusdomain=	64,	/* 0x40 */
+	OBnisplusserver=	65,
+	OBhomeagent=		68,
+	OBsmtpserver=		69,
+	OBpop3server=		70,
+	OBnntpserver=		71,
+	OBwwwserver=		72,
+	OBfingerserver=		73,
+	OBircserver=		74,
+	OBstserver=		75,
+	OBstdaserver=		76,
+
+	/* dhcp options */
+	ODipaddr=		50,	/* 0x32 */
+	ODlease=		51,
+	ODoverload=		52,
+	ODtype=			53,	/* 0x35 */
+	ODserverid=		54,	/* 0x36 */
+	ODparams=		55,	/* 0x37 */
+	ODmessage=		56,
+	ODmaxmsg=		57,
+	ODrenewaltime=		58,
+	ODrebindingtime=	59,
+	ODvendorclass=		60,
+	ODclientid=		61,	/* 0x3d */
+	ODtftpserver=		66,
+	ODbootfile=		67,
+
+	/* plan9 vendor info options */
+	OP9fs=			128,	// plan9 file servers
+	OP9auth=		129,	// plan9 auth servers
+};
+
+/* a lease that never expires */
+#define Lforever	0xffffffffU
+
+/* dhcp states */
+enum {
+	Sinit,
+	Sselecting,
+	Srequesting,
+	Sbound,
+	Srenewing,
+	Srebinding,
+};	
+
+typedef struct Bootp	Bootp;
+struct Bootp
+{
+	uchar	op;			/* opcode */
+	uchar	htype;			/* hardware type */
+	uchar	hlen;			/* hardware address len */
+	uchar	hops;			/* hops */
+	uchar	xid[4];			/* a random number */
+	uchar	secs[2];		/* elapsed since client started booting */
+	uchar	flags[2];
+	uchar	ciaddr[IPv4addrlen];	/* client IP address (client tells server) */
+	uchar	yiaddr[IPv4addrlen];	/* client IP address (server tells client) */
+	uchar	siaddr[IPv4addrlen];	/* server IP address */
+	uchar	giaddr[IPv4addrlen];	/* gateway IP address */
+	uchar	chaddr[Maxhwlen];	/* client hardware address */
+	char	sname[64];		/* server host name (optional) */
+	char	file[Maxfilelen];	/* boot file name */
+	uchar	optmagic[4];
+	uchar	optdata[Maxoptlen];
+};