1/*
2 * Copyright 2007, Ingo Weinhold, ingo_weinhold@gmx.de.
3 * Copyright 2008-2012, Axel Dörfler, axeld@pinc-software.de.
4 *
5 * Distributed under the terms of the MIT License.
6 */
7
8
9#include "BFSAddOn.h"
10#include "InitializeParameterEditor.h"
11
12#include <new>
13
14#include <Directory.h>
15#include <List.h>
16#include <Path.h>
17#include <Volume.h>
18
19#include <DiskDeviceTypes.h>
20#include <MutablePartition.h>
21
22#include <AutoDeleter.h>
23#include <StringForSize.h>
24
25#ifdef ASSERT
26#	undef ASSERT
27#endif
28
29#include "bfs.h"
30#include "bfs_control.h"
31#include "bfs_disk_system.h"
32
33
34using std::nothrow;
35
36
37static const uint32 kDiskSystemFlags =
38	0
39//	| B_DISK_SYSTEM_SUPPORTS_CHECKING
40//	| B_DISK_SYSTEM_SUPPORTS_REPAIRING
41//	| B_DISK_SYSTEM_SUPPORTS_RESIZING
42//	| B_DISK_SYSTEM_SUPPORTS_MOVING
43//	| B_DISK_SYSTEM_SUPPORTS_SETTING_CONTENT_NAME
44//	| B_DISK_SYSTEM_SUPPORTS_SETTING_CONTENT_PARAMETERS
45	| B_DISK_SYSTEM_SUPPORTS_INITIALIZING
46	| B_DISK_SYSTEM_SUPPORTS_CONTENT_NAME
47//	| B_DISK_SYSTEM_SUPPORTS_DEFRAGMENTING
48//	| B_DISK_SYSTEM_SUPPORTS_DEFRAGMENTING_WHILE_MOUNTED
49	| B_DISK_SYSTEM_SUPPORTS_CHECKING_WHILE_MOUNTED
50	| B_DISK_SYSTEM_SUPPORTS_REPAIRING_WHILE_MOUNTED
51//	| B_DISK_SYSTEM_SUPPORTS_RESIZING_WHILE_MOUNTED
52//	| B_DISK_SYSTEM_SUPPORTS_MOVING_WHILE_MOUNTED
53//	| B_DISK_SYSTEM_SUPPORTS_SETTING_CONTENT_NAME_WHILE_MOUNTED
54//	| B_DISK_SYSTEM_SUPPORTS_SETTING_CONTENT_PARAMETERS_WHILE_MOUNTED
55;
56
57
58static BString
59size_string(double size)
60{
61	BString string;
62	char* buffer = string.LockBuffer(256);
63	string_for_size(size, buffer, 256);
64
65	string.UnlockBuffer();
66	return string;
67}
68
69
70// #pragma mark - BFSAddOn
71
72
73BFSAddOn::BFSAddOn()
74	: BDiskSystemAddOn(kPartitionTypeBFS, kDiskSystemFlags)
75{
76}
77
78
79BFSAddOn::~BFSAddOn()
80{
81}
82
83
84status_t
85BFSAddOn::CreatePartitionHandle(BMutablePartition* partition,
86	BPartitionHandle** _handle)
87{
88	BFSPartitionHandle* handle = new(nothrow) BFSPartitionHandle(partition);
89	if (!handle)
90		return B_NO_MEMORY;
91
92	status_t error = handle->Init();
93	if (error != B_OK) {
94		delete handle;
95		return error;
96	}
97
98	*_handle = handle;
99	return B_OK;
100}
101
102
103bool
104BFSAddOn::CanInitialize(const BMutablePartition* partition)
105{
106	// TODO: Check partition size.
107	return true;
108}
109
110
111status_t
112BFSAddOn::ValidateInitialize(const BMutablePartition* partition, BString* name,
113	const char* parameterString)
114{
115	if (!CanInitialize(partition) || !name)
116		return B_BAD_VALUE;
117
118	// validate name
119
120	// truncate, if it is too long
121	if (name->Length() >= BFS_DISK_NAME_LENGTH)
122		name->Truncate(BFS_DISK_NAME_LENGTH - 1);
123
124	// replace '/' by '-'
125	name->ReplaceAll('/', '-');
126
127	// check parameters
128	initialize_parameters parameters;
129	status_t error = parse_initialize_parameters(parameterString, parameters);
130	if (error != B_OK)
131		return error;
132
133	return B_OK;
134}
135
136
137status_t
138BFSAddOn::Initialize(BMutablePartition* partition, const char* name,
139	const char* parameterString, BPartitionHandle** _handle)
140{
141	if (!CanInitialize(partition) || check_volume_name(name) != B_OK)
142		return B_BAD_VALUE;
143
144	initialize_parameters parameters;
145	status_t error = parse_initialize_parameters(parameterString, parameters);
146	if (error != B_OK)
147		return error;
148
149	// create the handle
150	BFSPartitionHandle* handle = new(nothrow) BFSPartitionHandle(partition);
151	if (!handle)
152		return B_NO_MEMORY;
153	ObjectDeleter<BFSPartitionHandle> handleDeleter(handle);
154
155	// init the partition
156	error = partition->SetContentType(Name());
157	if (error != B_OK)
158		return error;
159// TODO: The content type could as well be set by the caller.
160
161	partition->SetContentName(name);
162	partition->SetContentParameters(parameterString);
163	uint32 blockSize = parameters.blockSize;
164	partition->SetBlockSize(blockSize);
165	partition->SetContentSize(partition->Size() / blockSize * blockSize);
166	partition->Changed(B_PARTITION_CHANGED_INITIALIZATION);
167
168	*_handle = handleDeleter.Detach();
169
170	return B_OK;
171}
172
173
174status_t
175BFSAddOn::GetParameterEditor(B_PARAMETER_EDITOR_TYPE type,
176	BPartitionParameterEditor** editor)
177{
178	*editor = NULL;
179	if (type == B_INITIALIZE_PARAMETER_EDITOR) {
180		try {
181			*editor = new InitializeBFSEditor();
182		} catch (std::bad_alloc) {
183			return B_NO_MEMORY;
184		}
185		return B_OK;
186	}
187	return B_NOT_SUPPORTED;
188}
189
190
191// #pragma mark - BFSPartitionHandle
192
193
194BFSPartitionHandle::BFSPartitionHandle(BMutablePartition* partition)
195	: BPartitionHandle(partition)
196{
197}
198
199
200BFSPartitionHandle::~BFSPartitionHandle()
201{
202}
203
204
205status_t
206BFSPartitionHandle::Init()
207{
208// TODO: Check parameters.
209	return B_OK;
210}
211
212
213uint32
214BFSPartitionHandle::SupportedOperations(uint32 mask)
215{
216	return kDiskSystemFlags & mask;
217}
218
219
220status_t
221BFSPartitionHandle::Repair(bool checkOnly)
222{
223	BVolume volume(Partition()->VolumeID());
224	BDirectory directory;
225	volume.GetRootDirectory(&directory);
226	BPath path;
227	path.SetTo(&directory, ".");
228
229	int fd = open(path.Path(), O_RDONLY);
230	if (fd < 0)
231	    return errno;
232
233	FileDescriptorCloser closer(fd);
234
235	struct check_control result;
236	memset(&result, 0, sizeof(result));
237	result.magic = BFS_IOCTL_CHECK_MAGIC;
238	result.flags = 0;
239	if (!checkOnly) {
240		//printf("will fix any severe errors!\n");
241		result.flags |= BFS_FIX_BITMAP_ERRORS | BFS_REMOVE_WRONG_TYPES
242			| BFS_REMOVE_INVALID | BFS_FIX_NAME_MISMATCHES | BFS_FIX_BPLUSTREES;
243	}
244
245	// start checking
246	if (ioctl(fd, BFS_IOCTL_START_CHECKING, &result, sizeof(result)) < 0)
247	    return errno;
248
249	uint64 attributeDirectories = 0, attributes = 0;
250	uint64 files = 0, directories = 0, indices = 0;
251	uint64 counter = 0;
252	uint32 previousPass = result.pass;
253
254	// check all files and report errors
255	while (ioctl(fd, BFS_IOCTL_CHECK_NEXT_NODE, &result,
256			sizeof(result)) == 0) {
257		if (++counter % 50 == 0)
258			printf("%9" B_PRId64 " nodes processed\x1b[1A\n", counter);
259
260		if (result.pass == BFS_CHECK_PASS_BITMAP) {
261			if (result.errors) {
262				printf("%s (inode = %" B_PRIdINO ")", result.name, result.inode);
263				if ((result.errors & BFS_MISSING_BLOCKS) != 0)
264					printf(", some blocks weren't allocated");
265				if ((result.errors & BFS_BLOCKS_ALREADY_SET) != 0)
266					printf(", has blocks already set");
267				if ((result.errors & BFS_INVALID_BLOCK_RUN) != 0)
268					printf(", has invalid block run(s)");
269				if ((result.errors & BFS_COULD_NOT_OPEN) != 0)
270					printf(", could not be opened");
271				if ((result.errors & BFS_WRONG_TYPE) != 0)
272					printf(", has wrong type");
273				if ((result.errors & BFS_NAMES_DONT_MATCH) != 0)
274					printf(", names don't match");
275				if ((result.errors & BFS_INVALID_BPLUSTREE) != 0)
276					printf(", invalid b+tree");
277				putchar('\n');
278			}
279
280			if ((result.mode & (S_INDEX_DIR | 0777)) == S_INDEX_DIR)
281				indices++;
282			else if (result.mode & S_ATTR_DIR)
283				attributeDirectories++;
284			else if (result.mode & S_ATTR)
285				attributes++;
286			else if (S_ISDIR(result.mode))
287				directories++;
288			else
289				files++;
290		} else if (result.pass == BFS_CHECK_PASS_INDEX) {
291			if (previousPass != result.pass) {
292				printf("Recreating broken index b+trees...\n");
293				previousPass = result.pass;
294				counter = 0;
295			}
296		}
297	}
298
299	// stop checking
300	if (ioctl(fd, BFS_IOCTL_STOP_CHECKING, &result, sizeof(result)) != 0)
301		return errno;
302
303	printf("        %" B_PRIu64 " nodes checked,\n\t%" B_PRIu64 " blocks not "
304		"allocated,\n\t%" B_PRIu64 " blocks already set,\n\t%" B_PRIu64
305		" blocks could be freed\n\n", counter, result.stats.missing,
306		result.stats.already_set, result.stats.freed);
307	printf("\tfiles\t\t%" B_PRIu64 "\n\tdirectories\t%" B_PRIu64 "\n"
308		"\tattributes\t%" B_PRIu64 "\n\tattr. dirs\t%" B_PRIu64 "\n"
309		"\tindices\t\t%" B_PRIu64 "\n", files, directories, attributes,
310		attributeDirectories, indices);
311
312	printf("\n\tdirect block runs\t\t%" B_PRIu64 " (%s)\n",
313		result.stats.direct_block_runs, size_string(1.0
314			* result.stats.blocks_in_direct
315			* result.stats.block_size).String());
316	printf("\tindirect block runs\t\t%" B_PRIu64 " (in %" B_PRIu64
317		" array blocks, %s)\n", result.stats.indirect_block_runs,
318		result.stats.indirect_array_blocks,
319		size_string(1.0 * result.stats.blocks_in_indirect
320			* result.stats.block_size).String());
321	printf("\tdouble indirect block runs\t%" B_PRIu64 " (in %" B_PRIu64
322		" array blocks, %s)\n", result.stats.double_indirect_block_runs,
323		result.stats.double_indirect_array_blocks,
324		size_string(1.0 * result.stats.blocks_in_double_indirect
325			* result.stats.block_size).String());
326	// TODO: this is currently not maintained correctly
327	//printf("\tpartial block runs\t%" B_PRIu64 "\n",
328	//	result.stats.partial_block_runs);
329
330	if (result.status == B_ENTRY_NOT_FOUND)
331		result.status = B_OK;
332
333	return result.status;
334}
335
336
337// #pragma mark -
338
339
340status_t
341get_disk_system_add_ons(BList* addOns)
342{
343	BFSAddOn* addOn = new(nothrow) BFSAddOn;
344	if (!addOn)
345		return B_NO_MEMORY;
346
347	if (!addOns->AddItem(addOn)) {
348		delete addOn;
349		return B_NO_MEMORY;
350	}
351
352	return B_OK;
353}
354