1#include <linux/fs.h>
2#include <linux/adfs_fs.h>
3
4
5
6#define ADFS_FREE_FRAG 0
7#define ADFS_BAD_FRAG 1
8#define ADFS_ROOT_FRAG 2
9
10#define ADFS_NDA_OWNER_READ (1 << 0)
11#define ADFS_NDA_OWNER_WRITE (1 << 1)
12#define ADFS_NDA_LOCKED (1 << 2)
13#define ADFS_NDA_DIRECTORY (1 << 3)
14#define ADFS_NDA_EXECUTE (1 << 4)
15#define ADFS_NDA_PUBLIC_READ (1 << 5)
16#define ADFS_NDA_PUBLIC_WRITE (1 << 6)
17
18#include "dir_f.h"
19
20struct buffer_head;
21
22
23
24
25struct adfs_inode_info {
26 loff_t mmu_private;
27 unsigned long parent_id;
28 __u32 loadaddr;
29 __u32 execaddr;
30 unsigned int filetype;
31 unsigned int attr;
32 unsigned int stamped:1;
33 struct inode vfs_inode;
34};
35
36
37
38
39struct adfs_discmap;
40struct adfs_dir_ops;
41
42
43
44
45struct adfs_sb_info {
46 struct adfs_discmap *s_map;
47 struct adfs_dir_ops *s_dir;
48
49 kuid_t s_uid;
50 kgid_t s_gid;
51 umode_t s_owner_mask;
52 umode_t s_other_mask;
53 int s_ftsuffix;
54
55 __u32 s_ids_per_zone;
56 __u32 s_idlen;
57 __u32 s_map_size;
58 unsigned long s_size;
59 signed int s_map2blk;
60 unsigned int s_log2sharesize;
61 __le32 s_version;
62 unsigned int s_namelen;
63};
64
65static inline struct adfs_sb_info *ADFS_SB(struct super_block *sb)
66{
67 return sb->s_fs_info;
68}
69
70static inline struct adfs_inode_info *ADFS_I(struct inode *inode)
71{
72 return container_of(inode, struct adfs_inode_info, vfs_inode);
73}
74
75
76
77
78struct adfs_dir {
79 struct super_block *sb;
80
81 int nr_buffers;
82 struct buffer_head *bh[4];
83
84
85 struct buffer_head **bh_fplus;
86
87 unsigned int pos;
88 unsigned int parent_id;
89
90 struct adfs_dirheader dirhead;
91 union adfs_dirtail dirtail;
92};
93
94
95
96
97#define ADFS_MAX_NAME_LEN (256 + 4)
98struct object_info {
99 __u32 parent_id;
100 __u32 file_id;
101 __u32 loadaddr;
102 __u32 execaddr;
103 __u32 size;
104 __u8 attr;
105 unsigned int name_len;
106 char name[ADFS_MAX_NAME_LEN];
107
108
109 __u16 filetype;
110};
111
112
113static inline int append_filetype_suffix(char *buf, __u16 filetype)
114{
115 if (filetype == 0xffff)
116 return 0;
117
118 *buf++ = ',';
119 *buf++ = hex_asc_lo(filetype >> 8);
120 *buf++ = hex_asc_lo(filetype >> 4);
121 *buf++ = hex_asc_lo(filetype >> 0);
122 return 4;
123}
124
125struct adfs_dir_ops {
126 int (*read)(struct super_block *sb, unsigned int id, unsigned int sz, struct adfs_dir *dir);
127 int (*setpos)(struct adfs_dir *dir, unsigned int fpos);
128 int (*getnext)(struct adfs_dir *dir, struct object_info *obj);
129 int (*update)(struct adfs_dir *dir, struct object_info *obj);
130 int (*create)(struct adfs_dir *dir, struct object_info *obj);
131 int (*remove)(struct adfs_dir *dir, struct object_info *obj);
132 int (*sync)(struct adfs_dir *dir);
133 void (*free)(struct adfs_dir *dir);
134};
135
136struct adfs_discmap {
137 struct buffer_head *dm_bh;
138 __u32 dm_startblk;
139 unsigned int dm_startbit;
140 unsigned int dm_endbit;
141};
142
143
144struct inode *adfs_iget(struct super_block *sb, struct object_info *obj);
145int adfs_write_inode(struct inode *inode, struct writeback_control *wbc);
146int adfs_notify_change(struct dentry *dentry, struct iattr *attr);
147
148
149extern int adfs_map_lookup(struct super_block *sb, unsigned int frag_id, unsigned int offset);
150extern unsigned int adfs_map_free(struct super_block *sb);
151
152
153void __adfs_error(struct super_block *sb, const char *function,
154 const char *fmt, ...);
155#define adfs_error(sb, fmt...) __adfs_error(sb, __func__, fmt)
156
157
158
159
160
161
162
163
164extern const struct inode_operations adfs_dir_inode_operations;
165extern const struct file_operations adfs_dir_operations;
166extern const struct dentry_operations adfs_dentry_operations;
167extern struct adfs_dir_ops adfs_f_dir_ops;
168extern struct adfs_dir_ops adfs_fplus_dir_ops;
169
170extern int adfs_dir_update(struct super_block *sb, struct object_info *obj,
171 int wait);
172
173
174extern const struct inode_operations adfs_file_inode_operations;
175extern const struct file_operations adfs_file_operations;
176
177static inline __u32 signed_asl(__u32 val, signed int shift)
178{
179 if (shift >= 0)
180 val <<= shift;
181 else
182 val >>= -shift;
183 return val;
184}
185
186
187
188
189
190
191
192static inline int
193__adfs_block_map(struct super_block *sb, unsigned int object_id,
194 unsigned int block)
195{
196 if (object_id & 255) {
197 unsigned int off;
198
199 off = (object_id & 255) - 1;
200 block += off << ADFS_SB(sb)->s_log2sharesize;
201 }
202
203 return adfs_map_lookup(sb, object_id >> 8, block);
204}
205