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debug.c
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1 /*
2  * linux/fs/befs/debug.c
3  *
4  * Copyright (C) 2001 Will Dyson (will_dyson at pobox.com)
5  *
6  * With help from the ntfs-tng driver by Anton Altparmakov
7  *
8  * Copyright (C) 1999 Makoto Kato ([email protected])
9  *
10  * debug functions
11  */
12 
13 #ifdef __KERNEL__
14 
15 #include <stdarg.h>
16 #include <linux/string.h>
17 #include <linux/spinlock.h>
18 #include <linux/kernel.h>
19 #include <linux/fs.h>
20 #include <linux/slab.h>
21 
22 #endif /* __KERNEL__ */
23 
24 #include "befs.h"
25 
26 #define ERRBUFSIZE 1024
27 
28 void
29 befs_error(const struct super_block *sb, const char *fmt, ...)
30 {
31  va_list args;
32  char *err_buf = kmalloc(ERRBUFSIZE, GFP_KERNEL);
33  if (err_buf == NULL) {
34  printk(KERN_ERR "could not allocate %d bytes\n", ERRBUFSIZE);
35  return;
36  }
37 
38  va_start(args, fmt);
39  vsnprintf(err_buf, ERRBUFSIZE, fmt, args);
40  va_end(args);
41 
42  printk(KERN_ERR "BeFS(%s): %s\n", sb->s_id, err_buf);
43  kfree(err_buf);
44 }
45 
46 void
47 befs_warning(const struct super_block *sb, const char *fmt, ...)
48 {
49  va_list args;
50  char *err_buf = kmalloc(ERRBUFSIZE, GFP_KERNEL);
51  if (err_buf == NULL) {
52  printk(KERN_ERR "could not allocate %d bytes\n", ERRBUFSIZE);
53  return;
54  }
55 
56  va_start(args, fmt);
57  vsnprintf(err_buf, ERRBUFSIZE, fmt, args);
58  va_end(args);
59 
60  printk(KERN_WARNING "BeFS(%s): %s\n", sb->s_id, err_buf);
61 
62  kfree(err_buf);
63 }
64 
65 void
66 befs_debug(const struct super_block *sb, const char *fmt, ...)
67 {
68 #ifdef CONFIG_BEFS_DEBUG
69 
70  va_list args;
71  char *err_buf = NULL;
72 
73  if (BEFS_SB(sb)->mount_opts.debug) {
74  err_buf = kmalloc(ERRBUFSIZE, GFP_KERNEL);
75  if (err_buf == NULL) {
76  printk(KERN_ERR "could not allocate %d bytes\n",
77  ERRBUFSIZE);
78  return;
79  }
80 
81  va_start(args, fmt);
82  vsnprintf(err_buf, ERRBUFSIZE, fmt, args);
83  va_end(args);
84 
85  printk(KERN_DEBUG "BeFS(%s): %s\n", sb->s_id, err_buf);
86 
87  kfree(err_buf);
88  }
89 
90 #endif //CONFIG_BEFS_DEBUG
91 }
92 
93 void
94 befs_dump_inode(const struct super_block *sb, befs_inode * inode)
95 {
96 #ifdef CONFIG_BEFS_DEBUG
97 
98  befs_block_run tmp_run;
99 
100  befs_debug(sb, "befs_inode information");
101 
102  befs_debug(sb, " magic1 %08x", fs32_to_cpu(sb, inode->magic1));
103 
104  tmp_run = fsrun_to_cpu(sb, inode->inode_num);
105  befs_debug(sb, " inode_num %u, %hu, %hu",
106  tmp_run.allocation_group, tmp_run.start, tmp_run.len);
107 
108  befs_debug(sb, " uid %u", fs32_to_cpu(sb, inode->uid));
109  befs_debug(sb, " gid %u", fs32_to_cpu(sb, inode->gid));
110  befs_debug(sb, " mode %08x", fs32_to_cpu(sb, inode->mode));
111  befs_debug(sb, " flags %08x", fs32_to_cpu(sb, inode->flags));
112  befs_debug(sb, " create_time %Lu",
113  fs64_to_cpu(sb, inode->create_time));
114  befs_debug(sb, " last_modified_time %Lu",
115  fs64_to_cpu(sb, inode->last_modified_time));
116 
117  tmp_run = fsrun_to_cpu(sb, inode->parent);
118  befs_debug(sb, " parent [%u, %hu, %hu]",
119  tmp_run.allocation_group, tmp_run.start, tmp_run.len);
120 
121  tmp_run = fsrun_to_cpu(sb, inode->attributes);
122  befs_debug(sb, " attributes [%u, %hu, %hu]",
123  tmp_run.allocation_group, tmp_run.start, tmp_run.len);
124 
125  befs_debug(sb, " type %08x", fs32_to_cpu(sb, inode->type));
126  befs_debug(sb, " inode_size %u", fs32_to_cpu(sb, inode->inode_size));
127 
128  if (S_ISLNK(fs32_to_cpu(sb, inode->mode))) {
129  befs_debug(sb, " Symbolic link [%s]", inode->data.symlink);
130  } else {
131  int i;
132 
133  for (i = 0; i < BEFS_NUM_DIRECT_BLOCKS; i++) {
134  tmp_run =
135  fsrun_to_cpu(sb, inode->data.datastream.direct[i]);
136  befs_debug(sb, " direct %d [%u, %hu, %hu]", i,
137  tmp_run.allocation_group, tmp_run.start,
138  tmp_run.len);
139  }
140  befs_debug(sb, " max_direct_range %Lu",
141  fs64_to_cpu(sb,
142  inode->data.datastream.
143  max_direct_range));
144 
145  tmp_run = fsrun_to_cpu(sb, inode->data.datastream.indirect);
146  befs_debug(sb, " indirect [%u, %hu, %hu]",
147  tmp_run.allocation_group,
148  tmp_run.start, tmp_run.len);
149 
150  befs_debug(sb, " max_indirect_range %Lu",
151  fs64_to_cpu(sb,
152  inode->data.datastream.
153  max_indirect_range));
154 
155  tmp_run =
156  fsrun_to_cpu(sb, inode->data.datastream.double_indirect);
157  befs_debug(sb, " double indirect [%u, %hu, %hu]",
158  tmp_run.allocation_group, tmp_run.start,
159  tmp_run.len);
160 
161  befs_debug(sb, " max_double_indirect_range %Lu",
162  fs64_to_cpu(sb,
163  inode->data.datastream.
164  max_double_indirect_range));
165 
166  befs_debug(sb, " size %Lu",
167  fs64_to_cpu(sb, inode->data.datastream.size));
168  }
169 
170 #endif //CONFIG_BEFS_DEBUG
171 }
172 
173 /*
174  * Display super block structure for debug.
175  */
176 
177 void
178 befs_dump_super_block(const struct super_block *sb, befs_super_block * sup)
179 {
180 #ifdef CONFIG_BEFS_DEBUG
181 
182  befs_block_run tmp_run;
183 
184  befs_debug(sb, "befs_super_block information");
185 
186  befs_debug(sb, " name %s", sup->name);
187  befs_debug(sb, " magic1 %08x", fs32_to_cpu(sb, sup->magic1));
188  befs_debug(sb, " fs_byte_order %08x",
189  fs32_to_cpu(sb, sup->fs_byte_order));
190 
191  befs_debug(sb, " block_size %u", fs32_to_cpu(sb, sup->block_size));
192  befs_debug(sb, " block_shift %u", fs32_to_cpu(sb, sup->block_shift));
193 
194  befs_debug(sb, " num_blocks %Lu", fs64_to_cpu(sb, sup->num_blocks));
195  befs_debug(sb, " used_blocks %Lu", fs64_to_cpu(sb, sup->used_blocks));
196 
197  befs_debug(sb, " magic2 %08x", fs32_to_cpu(sb, sup->magic2));
198  befs_debug(sb, " blocks_per_ag %u",
199  fs32_to_cpu(sb, sup->blocks_per_ag));
200  befs_debug(sb, " ag_shift %u", fs32_to_cpu(sb, sup->ag_shift));
201  befs_debug(sb, " num_ags %u", fs32_to_cpu(sb, sup->num_ags));
202 
203  befs_debug(sb, " flags %08x", fs32_to_cpu(sb, sup->flags));
204 
205  tmp_run = fsrun_to_cpu(sb, sup->log_blocks);
206  befs_debug(sb, " log_blocks %u, %hu, %hu",
207  tmp_run.allocation_group, tmp_run.start, tmp_run.len);
208 
209  befs_debug(sb, " log_start %Ld", fs64_to_cpu(sb, sup->log_start));
210  befs_debug(sb, " log_end %Ld", fs64_to_cpu(sb, sup->log_end));
211 
212  befs_debug(sb, " magic3 %08x", fs32_to_cpu(sb, sup->magic3));
213 
214  tmp_run = fsrun_to_cpu(sb, sup->root_dir);
215  befs_debug(sb, " root_dir %u, %hu, %hu",
216  tmp_run.allocation_group, tmp_run.start, tmp_run.len);
217 
218  tmp_run = fsrun_to_cpu(sb, sup->indices);
219  befs_debug(sb, " indices %u, %hu, %hu",
220  tmp_run.allocation_group, tmp_run.start, tmp_run.len);
221 
222 #endif //CONFIG_BEFS_DEBUG
223 }
224 
225 #if 0
226 /* unused */
227 void
228 befs_dump_small_data(const struct super_block *sb, befs_small_data * sd)
229 {
230 }
231 
232 /* unused */
233 void
234 befs_dump_run(const struct super_block *sb, befs_disk_block_run run)
235 {
236 #ifdef CONFIG_BEFS_DEBUG
237 
238  befs_block_run n = fsrun_to_cpu(sb, run);
239 
240  befs_debug(sb, "[%u, %hu, %hu]", n.allocation_group, n.start, n.len);
241 
242 #endif //CONFIG_BEFS_DEBUG
243 }
244 #endif /* 0 */
245 
246 void
247 befs_dump_index_entry(const struct super_block *sb, befs_disk_btree_super * super)
248 {
249 #ifdef CONFIG_BEFS_DEBUG
250 
251  befs_debug(sb, "Btree super structure");
252  befs_debug(sb, " magic %08x", fs32_to_cpu(sb, super->magic));
253  befs_debug(sb, " node_size %u", fs32_to_cpu(sb, super->node_size));
254  befs_debug(sb, " max_depth %08x", fs32_to_cpu(sb, super->max_depth));
255 
256  befs_debug(sb, " data_type %08x", fs32_to_cpu(sb, super->data_type));
257  befs_debug(sb, " root_node_pointer %016LX",
258  fs64_to_cpu(sb, super->root_node_ptr));
259  befs_debug(sb, " free_node_pointer %016LX",
260  fs64_to_cpu(sb, super->free_node_ptr));
261  befs_debug(sb, " maximum size %016LX",
262  fs64_to_cpu(sb, super->max_size));
263 
264 #endif //CONFIG_BEFS_DEBUG
265 }
266 
267 void
268 befs_dump_index_node(const struct super_block *sb, befs_btree_nodehead * node)
269 {
270 #ifdef CONFIG_BEFS_DEBUG
271 
272  befs_debug(sb, "Btree node structure");
273  befs_debug(sb, " left %016LX", fs64_to_cpu(sb, node->left));
274  befs_debug(sb, " right %016LX", fs64_to_cpu(sb, node->right));
275  befs_debug(sb, " overflow %016LX", fs64_to_cpu(sb, node->overflow));
276  befs_debug(sb, " all_key_count %hu",
277  fs16_to_cpu(sb, node->all_key_count));
278  befs_debug(sb, " all_key_length %hu",
279  fs16_to_cpu(sb, node->all_key_length));
280 
281 #endif //CONFIG_BEFS_DEBUG
282 }
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