1 64f7506b 2006-02-24 devnull #define getpass tapefs_getpass
 2 64f7506b 2006-02-24 devnull 
 3 64f7506b 2006-02-24 devnull #define	g2byte(x)	(((x)[1]<<8) + (x)[0])		/* little-endian */
 4 64f7506b 2006-02-24 devnull #define	g3byte(x)	(((x)[2]<<16) + ((x)[1]<<8) + (x)[0])
 5 64f7506b 2006-02-24 devnull #define	g4byte(x)	(((x)[3]<<24) + ((x)[2]<<16) + ((x)[1]<<8) + (x)[0])
 6 58ecf387 2006-02-25 devnull #define	g8byte(x)	(((vlong)g4byte(x)<<32) | (u32int)g4byte(x+4))
 7 64f7506b 2006-02-24 devnull 
 8 64f7506b 2006-02-24 devnull enum
 9 64f7506b 2006-02-24 devnull {
10 64f7506b 2006-02-24 devnull 	OPERM	= 0x3,		/* mask of all permission types in open mode */
11 64f7506b 2006-02-24 devnull 	Nram	= 512,
12 64f7506b 2006-02-24 devnull 	Maxbuf	= 8192,		/* max buffer size */
13 64f7506b 2006-02-24 devnull };
14 64f7506b 2006-02-24 devnull 
15 64f7506b 2006-02-24 devnull typedef struct Fid Fid;
16 64f7506b 2006-02-24 devnull typedef struct Ram Ram;
17 64f7506b 2006-02-24 devnull 
18 64f7506b 2006-02-24 devnull struct Fid
19 64f7506b 2006-02-24 devnull {
20 64f7506b 2006-02-24 devnull 	short	busy;
21 64f7506b 2006-02-24 devnull 	short	open;
22 64f7506b 2006-02-24 devnull 	short	rclose;
23 64f7506b 2006-02-24 devnull 	int	fid;
24 64f7506b 2006-02-24 devnull 	Fid	*next;
25 64f7506b 2006-02-24 devnull 	char	*user;
26 64f7506b 2006-02-24 devnull 	Ram	*ram;
27 64f7506b 2006-02-24 devnull };
28 64f7506b 2006-02-24 devnull 
29 64f7506b 2006-02-24 devnull struct Ram
30 64f7506b 2006-02-24 devnull {
31 64f7506b 2006-02-24 devnull 	char	busy;
32 64f7506b 2006-02-24 devnull 	char	open;
33 64f7506b 2006-02-24 devnull 	char	replete;
34 64f7506b 2006-02-24 devnull 	Ram	*parent;	/* parent directory */
35 64f7506b 2006-02-24 devnull 	Ram	*child;		/* first member of directory */
36 64f7506b 2006-02-24 devnull 	Ram	*next;		/* next member of file's directory */
37 64f7506b 2006-02-24 devnull 	Qid	qid;
38 64f7506b 2006-02-24 devnull 	long	perm;
39 64f7506b 2006-02-24 devnull 	char	*name;
40 64f7506b 2006-02-24 devnull 	ulong	atime;
41 64f7506b 2006-02-24 devnull 	ulong	mtime;
42 64f7506b 2006-02-24 devnull 	char	*user;
43 64f7506b 2006-02-24 devnull 	char	*group;
44 64f7506b 2006-02-24 devnull 	vlong addr;
45 64f7506b 2006-02-24 devnull 	void *data;
46 58ecf387 2006-02-25 devnull 	vlong	ndata;
47 64f7506b 2006-02-24 devnull };
48 64f7506b 2006-02-24 devnull 
49 64f7506b 2006-02-24 devnull enum
50 64f7506b 2006-02-24 devnull {
51 64f7506b 2006-02-24 devnull 	Pexec =		1,
52 64f7506b 2006-02-24 devnull 	Pwrite = 	2,
53 64f7506b 2006-02-24 devnull 	Pread = 	4,
54 64f7506b 2006-02-24 devnull 	Pother = 	1,
55 64f7506b 2006-02-24 devnull 	Pgroup = 	8,
56 64f7506b 2006-02-24 devnull 	Powner =	64,
57 64f7506b 2006-02-24 devnull };
58 64f7506b 2006-02-24 devnull 
59 64f7506b 2006-02-24 devnull typedef struct idmap {
60 64f7506b 2006-02-24 devnull 	char	*name;
61 64f7506b 2006-02-24 devnull 	int	id;
62 64f7506b 2006-02-24 devnull } Idmap;
63 64f7506b 2006-02-24 devnull 
64 64f7506b 2006-02-24 devnull typedef struct fileinf {
65 64f7506b 2006-02-24 devnull 	char	*name;
66 64f7506b 2006-02-24 devnull 	vlong	addr;
67 64f7506b 2006-02-24 devnull 	void	*data;
68 64f7506b 2006-02-24 devnull 	vlong	size;
69 64f7506b 2006-02-24 devnull 	int	mode;
70 64f7506b 2006-02-24 devnull 	int	uid;
71 64f7506b 2006-02-24 devnull 	int	gid;
72 64f7506b 2006-02-24 devnull 	long	mdate;
73 64f7506b 2006-02-24 devnull } Fileinf;
74 64f7506b 2006-02-24 devnull 
75 64f7506b 2006-02-24 devnull extern	ulong	path;		/* incremented for each new file */
76 64f7506b 2006-02-24 devnull extern	Ram	*ram;
77 64f7506b 2006-02-24 devnull extern	char	*user;
78 64f7506b 2006-02-24 devnull extern	Idmap	*uidmap;
79 64f7506b 2006-02-24 devnull extern	Idmap	*gidmap;
80 64f7506b 2006-02-24 devnull extern	int	replete;
81 64f7506b 2006-02-24 devnull void	error(char*);
82 64f7506b 2006-02-24 devnull void	*erealloc(void*, ulong);
83 64f7506b 2006-02-24 devnull void	*emalloc(ulong);
84 64f7506b 2006-02-24 devnull char	*estrdup(char*);
85 64f7506b 2006-02-24 devnull void	populate(char *);
86 64f7506b 2006-02-24 devnull void	dotrunc(Ram*);
87 64f7506b 2006-02-24 devnull void	docreate(Ram*);
88 64f7506b 2006-02-24 devnull char	*doread(Ram*, vlong, long);
89 64f7506b 2006-02-24 devnull void	dowrite(Ram*, char*, long, long);
90 64f7506b 2006-02-24 devnull int	dopermw(Ram*);
91 64f7506b 2006-02-24 devnull Idmap	*getpass(char*);
92 64f7506b 2006-02-24 devnull char	*mapid(Idmap*,int);
93 64f7506b 2006-02-24 devnull Ram	*poppath(Fileinf fi, int new);
94 64f7506b 2006-02-24 devnull Ram	*popfile(Ram *dir, Fileinf fi);
95 64f7506b 2006-02-24 devnull void	popdir(Ram*);
96 64f7506b 2006-02-24 devnull Ram	*lookup(Ram*, char*);