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 (m_kato@ga2.so-net.ne.jp)
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
befs_error(const struct super_block * sb,const char * fmt,...)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
befs_warning(const struct super_block * sb,const char * fmt,...)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
befs_debug(const struct super_block * sb,const char * fmt,...)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
befs_dump_inode(const struct super_block * sb,befs_inode * inode)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
befs_dump_super_block(const struct super_block * sb,befs_super_block * sup)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
befs_dump_index_entry(const struct super_block * sb,befs_disk_btree_super * super)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
befs_dump_index_node(const struct super_block * sb,befs_btree_nodehead * node)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 }
283