text: /* bootp/dhcp defines */
  
  #define BOOTP_SERVER	67
  #define BOOTP_CLIENT	68
  
  #define BOOTP_REQUEST	1
  #define BOOTP_REPLY	2
  
  #define RFC1533_COOKIE		99, 130, 83, 99
  #define RFC1533_PAD		0
  #define RFC1533_NETMASK		1
  #define RFC1533_TIMEOFFSET	2
  #define RFC1533_GATEWAY		3
  #define RFC1533_TIMESERVER	4
  #define RFC1533_IEN116NS	5
  #define RFC1533_DNS		6
  #define RFC1533_LOGSERVER	7
  #define RFC1533_COOKIESERVER	8
  #define RFC1533_LPRSERVER	9
  #define RFC1533_IMPRESSSERVER	10
  #define RFC1533_RESOURCESERVER	11
  #define RFC1533_HOSTNAME	12
  #define RFC1533_BOOTFILESIZE	13
  #define RFC1533_MERITDUMPFILE	14
  #define RFC1533_DOMAINNAME	15
  #define RFC1533_SWAPSERVER	16
  #define RFC1533_ROOTPATH	17
  #define RFC1533_EXTENSIONPATH	18
  #define RFC1533_IPFORWARDING	19
  #define RFC1533_IPSOURCEROUTING	20
  #define RFC1533_IPPOLICYFILTER	21
  #define RFC1533_IPMAXREASSEMBLY	22
  #define RFC1533_IPTTL		23
  #define RFC1533_IPMTU		24
  #define RFC1533_IPMTUPLATEAU	25
  #define RFC1533_INTMTU		26
  #define RFC1533_INTLOCALSUBNETS	27
  #define RFC1533_INTBROADCAST	28
  #define RFC1533_INTICMPDISCOVER	29
  #define RFC1533_INTICMPRESPOND	30
  #define RFC1533_INTROUTEDISCOVER 31
  #define RFC1533_INTROUTESOLICIT	32
  #define RFC1533_INTSTATICROUTES	33
  #define RFC1533_LLTRAILERENCAP	34
  #define RFC1533_LLARPCACHETMO	35
  #define RFC1533_LLETHERNETENCAP	36
  #define RFC1533_TCPTTL		37
  #define RFC1533_TCPKEEPALIVETMO	38
  #define RFC1533_TCPKEEPALIVEGB	39
  #define RFC1533_NISDOMAIN	40
  #define RFC1533_NISSERVER	41
  #define RFC1533_NTPSERVER	42
  #define RFC1533_VENDOR		43
  #define RFC1533_NBNS		44
  #define RFC1533_NBDD		45
  #define RFC1533_NBNT		46
  #define RFC1533_NBSCOPE		47
  #define RFC1533_XFS		48
  #define RFC1533_XDM		49
  
  #define RFC2132_REQ_ADDR	50
  #define RFC2132_LEASE_TIME      51
  #define RFC2132_MSG_TYPE	53
  #define RFC2132_SRV_ID		54
  #define RFC2132_PARAM_LIST	55
  #define RFC2132_MAX_SIZE	57
  #define RFC2132_RENEWAL_TIME    58
  #define RFC2132_REBIND_TIME     59
  
  #define DHCPDISCOVER		1
  #define DHCPOFFER		2
  #define DHCPREQUEST		3
  #define DHCPACK			5
  
  #define RFC1533_VENDOR_MAJOR	0
  #define RFC1533_VENDOR_MINOR	0
  
  #define RFC1533_VENDOR_MAGIC	128
  #define RFC1533_VENDOR_ADDPARM	129
  #define	RFC1533_VENDOR_ETHDEV	130
  #define RFC1533_VENDOR_HOWTO    132
  #define RFC1533_VENDOR_MNUOPTS	160
  #define RFC1533_VENDOR_SELECTION 176
  #define RFC1533_VENDOR_MOTD	184
  #define RFC1533_VENDOR_NUMOFMOTD 8
  #define RFC1533_VENDOR_IMG	192
  #define RFC1533_VENDOR_NUMOFIMG	16
  
  #define RFC1533_END		255
  #define BOOTP_VENDOR_LEN	64
  #define DHCP_OPT_LEN		312
  
  #ifdef PRAGMA_PACK_SUPPORTED
  #pragma pack(1)
  #endif
  
  struct bootp_t {
      struct ip ip;
      struct udphdr udp;
      uint8_t bp_op;
      uint8_t bp_htype;
      uint8_t bp_hlen;
      uint8_t bp_hops;
      uint32_t bp_xid;
      uint16_t bp_secs;
      uint16_t unused;
      struct in_addr bp_ciaddr;
      struct in_addr bp_yiaddr;
      struct in_addr bp_siaddr;
      struct in_addr bp_giaddr;
      uint8_t bp_hwaddr[16];
      uint8_t bp_sname[64];
      uint8_t bp_file[128];
      uint8_t bp_vend[DHCP_OPT_LEN];
  } PACKED__;
  
  #ifdef PRAGMA_PACK_SUPPORTED
  #pragma pack(PACK_END)
  #endif
  
  void bootp_input(struct SLIRPmbuf *m);
  