1 #include "../dhcp.h"
2 
3 enum
4 {
5 	Maxstr=	256
6 };
7 
8 typedef struct Binding Binding;
9 struct Binding
10 {
11 	Binding *next;
12 	uchar	ip[IPaddrlen];
13 
14 	char	*boundto;	/* id last bound to */
15 	char	*offeredto;	/* id we've offered this to */
16 
17 	long	lease;		/* absolute time at which binding expires */
18 	long	expoffer;	/* absolute time at which offer times out */
19 	long	offer;		/* lease offered */
20 	long	lasttouched;	/* time this entry last assigned/unassigned */
21 	long	lastcomplained;	/* last time we complained about a used but not leased */
22 	long	tried;		/* last time we tried this entry */
23 
24 	Qid	q;		/* qid at the last syncbinding */
25 };
26 
27 typedef struct Info	Info;
28 struct Info
29 {
30 	int	indb;			/* true if found in database */
31 	char	domain[Maxstr];	/* system domain name */
32 	char	bootf[Maxstr];		/* boot file */
33 	char	bootf2[Maxstr];	/* alternative boot file */
34 	uchar	tftp[NDB_IPlen];	/* ip addr of tftp server */
35 	uchar	tftp2[NDB_IPlen];	/* ip addr of alternate server */
36 	uchar	ipaddr[NDB_IPlen];	/* ip address of system */
37 	uchar	ipmask[NDB_IPlen];	/* ip network mask */
38 	uchar	ipnet[NDB_IPlen];	/* ip network address (ipaddr & ipmask) */
39 	uchar	etheraddr[6];		/* ethernet address */
40 	uchar	gwip[NDB_IPlen];	/* gateway ip address */
41 	uchar	fsip[NDB_IPlen];	/* file system ip address */
42 	uchar	auip[NDB_IPlen];	/* authentication server ip address */
43 	char	rootpath[Maxstr];	/* rootfs for diskless nfs clients */
44 	char	dhcpgroup[Maxstr];
45 	char	vendor[Maxstr];	/* vendor info */
46 };
47 
48 
49 /* from dhcp.c */
50 extern int	validip(uchar*);
51 extern void	warning(int, char*, ...);
52 extern int	minlease;
53 
54 /* from db.c */
55 extern char*	tohex(char*, uchar*, int);
56 extern char*	toid(uchar*, int);
57 extern void	initbinding(uchar*, int);
58 extern Binding*	iptobinding(uchar*, int);
59 extern Binding*	idtobinding(char*, Info*, int);
60 extern Binding*	idtooffer(char*, Info*);
61 extern int	commitbinding(Binding*);
62 extern int	releasebinding(Binding*, char*);
63 extern int	samenet(uchar *ip, Info *iip);
64 extern void	mkoffer(Binding*, char*, long);
65 extern int	syncbinding(Binding*, int);
66 
67 /* from ndb.c */
68 extern int	lookup(Bootp*, Info*, Info*);
69 extern int	lookupip(uchar*, Info*, int);
70 extern void	lookupname(char*, Ndbtuple*);
71 extern Iplifc*	findlifc(uchar*);
72 extern int	forme(uchar*);
73 extern int	lookupserver(char*, uchar**, Ndbtuple *t);
74 extern Ndbtuple* lookupinfo(uchar *ipaddr, char **attr, int n);
75 
76 /* from icmp.c */
77 extern int	icmpecho(uchar*);
78 
79 extern char	*binddir;
80 extern int	debug;
81 extern char	*blog;
82 extern Ipifc	*ipifcs;
83 extern long	now;
84 extern char	*ndbfile;