GCC Code Coverage Report

Directory: cvmfs/
File: cvmfs/mountpoint.cc
Date: 2026-10-11 02:40:02
Exec Total Coverage
Lines: 978 1429 68.4%
Branches: 1248 3235 38.6%
Line Branch Exec Source
1 /**
2 * This file is part of the CernVM File System.
3 */
4
5 #include "mountpoint.h"
6
7 #include <errno.h>
8 #include <fcntl.h>
9 #include <inttypes.h>
10 #include <stdint.h>
11 #include <sys/stat.h>
12 #include <unistd.h>
13
14 #include <algorithm>
15 #include <cassert>
16 #include <climits>
17 #include <cstring>
18 #include <vector>
19
20 #include "duplex_fuse.h" // IWYU pragma: keep
21
22 #ifndef CVMFS_LIBCVMFS
23 #ifdef FUSE_CAP_EXPORT_SUPPORT
24 #define CVMFS_NFS_SUPPORT
25 #else
26 #warning "No NFS support, Fuse too old"
27 #endif
28 #endif
29
30 #include "authz/authz_curl.h"
31 #include "authz/authz_fetch.h"
32 #include "authz/authz_session.h"
33 #include "backoff.h"
34 #include "bundle_mgr.h"
35 #include "cache.h"
36 #include "cache_extern.h"
37 #include "cache_posix.h"
38 #include "cache_ram.h"
39 #include "cache_stream.h"
40 #include "cache_tiered.h"
41 #include "catalog.h"
42 #include "catalog_mgr_client.h"
43 #include "clientctx.h"
44 #include "crypto/signature.h"
45 #include "duplex_sqlite3.h"
46 #include "fetch.h"
47 #include "file_chunk.h"
48 #include "globals.h"
49 #include "glue_buffer.h"
50 #include "google/protobuf/stubs/common.h"
51 #include "history.h"
52 #include "history_sqlite.h"
53 #include "lru_md.h"
54 #include "manifest.h"
55 #include "manifest_fetch.h"
56 #include "network/download.h"
57 #include "network/sink_mem.h"
58 #include "nfs_maps.h"
59 #ifdef CVMFS_NFS_SUPPORT
60 #include "nfs_maps_leveldb.h"
61 #include "nfs_maps_sqlite.h"
62 #endif
63 #include <memory>
64
65 #include "options.h"
66 #include "quota_posix.h"
67 #include "resolv_conf_event_handler.h"
68 #include "sqlitemem.h"
69 #include "sqlitevfs.h"
70 #include "statistics.h"
71 #include "telemetry_aggregator.h"
72 #include "tracer.h"
73 #include "util/logging.h"
74 #include "util/posix.h"
75 #include "util/string.h"
76 #include "util/uuid.h"
77 #include "wpad.h"
78
79 using namespace std; // NOLINT
80
81
82 bool FileSystem::g_alive = false;
83 const char *FileSystem::kDefaultCacheBase = "/var/lib/cvmfs";
84 const char *FileSystem::kDefaultCacheMgrInstance = "default";
85
86
87 2263 FileSystem::IoErrorInfo::IoErrorInfo() : counter_(NULL), timestamp_last_(0) { }
88
89 ✗ void FileSystem::IoErrorInfo::Reset() {
90 ✗ counter_->Set(0);
91 ✗ timestamp_last_ = 0;
92 }
93
94 ✗ void FileSystem::IoErrorInfo::AddIoError() {
95 ✗ perf::Inc(counter_);
96 ✗ timestamp_last_ = time(NULL);
97 }
98
99 2263 void FileSystem::IoErrorInfo::SetCounter(perf::Counter *c) { counter_ = c; }
100
101 ✗ int64_t FileSystem::IoErrorInfo::count() { return counter_->Get(); }
102
103 ✗ time_t FileSystem::IoErrorInfo::timestamp_last() { return timestamp_last_; }
104
105
106 /**
107 * A cache instance name is part of a bash parameter and can only contain
108 * certain characters.
109 */
110 592 bool FileSystem::CheckInstanceName(const std::string &instance) {
111
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 592 if (instance.length() > 24)
112 37 return false;
113
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 555 const sanitizer::CacheInstanceSanitizer instance_sanitizer;
114
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 555 if (!instance_sanitizer.IsValid(instance)) {
115
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 148 boot_error_ = "invalid instance name (" + instance + "), "
116
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 74 + "only characters a-z, A-Z, 0-9, _ are allowed";
117 74 boot_status_ = loader::kFailCacheDir;
118 74 return false;
119 }
120 481 return true;
121 555 }
122
123
124 /**
125 * Not all possible combinations of cache flags / modes are valid.
126 */
127 2222 bool FileSystem::CheckPosixCacheSettings(
128 const FileSystem::PosixCacheSettings &settings) {
129
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 2222 if (settings.is_alien && settings.is_shared) {
130 boot_error_ = "Failure: shared local disk cache and alien cache mutually "
131 111 "exclusive. Please turn off shared local disk cache.";
132 111 boot_status_ = loader::kFailOptions;
133 111 return false;
134 }
135
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 2111 if (settings.is_alien && settings.is_managed) {
136 boot_error_ = "Failure: quota management and alien cache mutually "
137 74 "exclusive. Please turn off quota limit.";
138 74 boot_status_ = loader::kFailOptions;
139 74 return false;
140 }
141
142
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 2037 if (type_ == kFsLibrary) {
143
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 132 if (settings.is_shared || settings.is_managed) {
144 boot_error_ = "Failure: libcvmfs supports only unmanaged exclusive cache "
145 37 "or alien cache.";
146 37 boot_status_ = loader::kFailOptions;
147 37 return false;
148 }
149 }
150
151
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 2000 if (settings.cache_base_defined && settings.cache_dir_defined) {
152 boot_error_ = "'CVMFS_CACHE_BASE' and 'CVMFS_CACHE_DIR' are mutually "
153 37 "exclusive";
154 37 boot_status_ = loader::kFailOptions;
155 37 return false;
156 }
157
158 1963 return true;
159 }
160
161
162 /**
163 * Creation of state and manager classes. The destructor should mirror this
164 * method.
165 */
166 2263 FileSystem *FileSystem::Create(const FileSystem::FileSystemInfo &fs_info) {
167
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 2263 std::unique_ptr<FileSystem> file_system(new FileSystem(fs_info));
168
169
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 2263 file_system->SetupLogging();
170
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 2263 LogCvmfs(kLogCvmfs, kLogDebug, "Options:\n%s",
171
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 4526 file_system->options_mgr()->Dump().c_str());
172
173
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 2263 file_system->CreateStatistics();
174
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 2263 file_system->SetupSqlite();
175
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 2263 if (!file_system->DetermineNfsMode())
176 ✗ return file_system.release();
177
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 2263 if (!file_system->SetupWorkspace())
178 41 return file_system.release();
179
180 // Redirect SQlite temp directory to workspace (global variable)
181 2222 const unsigned length_tempdir = file_system->workspace_.length() + 1;
182
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 2222 sqlite3_temp_directory = static_cast<char *>(sqlite3_malloc(length_tempdir));
183 2222 snprintf(sqlite3_temp_directory,
184 length_tempdir,
185 "%s",
186 2222 file_system->workspace_.c_str());
187
188
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 2222 if (!file_system->TriageCacheMgr())
189 333 return file_system.release();
190
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 1889 file_system->SetupUuid();
191
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 1889 if (!file_system->SetupNfsMaps())
192 ✗ return file_system.release();
193
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 1889 const bool retval = sqlite::RegisterVfsRdOnly(file_system->cache_mgr_,
194 1889 file_system->statistics_,
195 sqlite::kVfsOptDefault);
196
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 1889 assert(retval);
197 1889 file_system->has_custom_sqlitevfs_ = true;
198
199
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 1889 ClientCtx::GetInstance();
200
201 1889 file_system->boot_status_ = loader::kFailOk;
202 1889 return file_system.release();
203 2263 }
204
205
206 2263 void FileSystem::CreateStatistics() {
207
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 2263 statistics_ = new perf::Statistics();
208
209 // Register the ShortString's static counters
210
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 2263 statistics_->Register("pathstring.n_instances", "Number of instances");
211
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 2263 statistics_->Register("pathstring.n_overflows", "Number of overflows");
212
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 2263 statistics_->Register("namestring.n_instances", "Number of instances");
213
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 2263 statistics_->Register("namestring.n_overflows", "Number of overflows");
214
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 2263 statistics_->Register("linkstring.n_instances", "Number of instances");
215
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 2263 statistics_->Register("linkstring.n_overflows", "Number of overflows");
216
217 // Callback counters
218
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 2263 n_fs_open_ = statistics_->Register("cvmfs.n_fs_open",
219 "Overall number of file open operations");
220
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 2263 n_fs_dir_open_ = statistics_->Register(
221 "cvmfs.n_fs_dir_open", "Overall number of directory open operations");
222
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 2263 n_fs_lookup_ = statistics_->Register("cvmfs.n_fs_lookup",
223 "Number of lookups");
224
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 2263 n_fs_lookup_negative_ = statistics_->Register("cvmfs.n_fs_lookup_negative",
225 "Number of negative lookups");
226
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 2263 n_fs_stat_ = statistics_->Register("cvmfs.n_fs_stat", "Number of stats");
227
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 2263 n_fs_stat_stale_ = statistics_->Register(
228 "cvmfs.n_fs_stat_stale",
229 "Number of stats for stale (open, meanwhile changed) regular files");
230
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 2263 n_fs_statfs_ = statistics_->Register("cvmfs.n_fs_statfs",
231 "Overall number of statsfs calls");
232
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 2263 n_fs_statfs_cached_ = statistics_->Register(
233 "cvmfs.n_fs_statfs_cached",
234 "Number of statsfs calls that accessed the cached statfs info");
235
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 2263 n_fs_read_ = statistics_->Register("cvmfs.n_fs_read", "Number of files read");
236
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 2263 n_fs_readlink_ = statistics_->Register("cvmfs.n_fs_readlink",
237 "Number of links read");
238
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 2263 n_fs_forget_ = statistics_->Register("cvmfs.n_fs_forget",
239 "Number of inode forgets");
240
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 2263 n_fs_inode_replace_ = statistics_->Register(
241 "cvmfs.n_fs_inode_replace",
242 "Number of stale inodes that got replaced by an up-to-date version");
243
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 2263 no_open_files_ = statistics_->Register("cvmfs.no_open_files",
244 "Number of currently opened files");
245
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 2263 no_open_dirs_ = statistics_->Register(
246 "cvmfs.no_open_dirs", "Number of currently opened directories");
247
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 2263 io_error_info_.SetCounter(
248 2263 statistics_->Register("cvmfs.n_io_error", "Number of I/O errors"));
249
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 2263 n_eio_total_ = statistics_->Register(
250 "eio.total",
251 "EIO returned to calling process. Sum of individual eio counters");
252
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 2263 n_eio_01_ = statistics_->Register(
253 "eio.01", "EIO returned by cvmfs.cc:cvmfs_lookup() - lookup failed");
254
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 2263 n_eio_02_ = statistics_->Register("eio.02",
255 "EIO returned by cvmfs.cc:ReplyNegative() "
256 "- CVMFS-specific metadata not found");
257
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 2263 n_eio_03_ = statistics_->Register(
258 "eio.03",
259 "EIO returned by cvmfs.cc:cvmfs_opendir() - failed to open directory ");
260
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 2263 n_eio_04_ = statistics_->Register("eio.04",
261 "EIO returned by cvmfs.cc:cvmfs_open() "
262 "- chunked file does not have any chunks");
263
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 2263 n_eio_05_ = statistics_->Register(
264 "eio.05",
265 "EIO returned by cvmfs.cc:cvmfs_read() - failed to fetch chunk");
266
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 2263 n_eio_06_ = statistics_->Register(
267 "eio.06", "EIO returned by cvmfs.cc:cvmfs_open() - failed to open file");
268
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 2263 n_eio_07_ = statistics_->Register(
269 "eio.07", "EIO returned by cvmfs.cc:cvmfs_read() - failed to read chunk");
270
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 2263 n_eio_08_ = statistics_->Register(
271 "eio.08", "EIO returned by cvmfs.cc:cvmfs_read() - failed to read file");
272
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 2263 n_emfile_ = statistics_->Register(
273 "eio.emfile",
274 "EMFILE returned by cvmfs.cc:cvmfs_read(): too many open files");
275
276 2263 string optarg;
277
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 4526 if (options_mgr_->GetValue("CVMFS_INSTRUMENT_FUSE", &optarg)
278
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 4526 && options_mgr_->IsOn(optarg)) {
279 ✗ HighPrecisionTimer::g_is_enabled = true;
280 }
281
282
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 2263 hist_fs_lookup_ = new Log2Histogram(30);
283
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 2263 hist_fs_forget_ = new Log2Histogram(30);
284
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 2263 hist_fs_forget_multi_ = new Log2Histogram(30);
285
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 2263 hist_fs_getattr_ = new Log2Histogram(30);
286
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 2263 hist_fs_readlink_ = new Log2Histogram(30);
287
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 2263 hist_fs_opendir_ = new Log2Histogram(30);
288
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 2263 hist_fs_releasedir_ = new Log2Histogram(30);
289
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 2263 hist_fs_readdir_ = new Log2Histogram(30);
290
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 2263 hist_fs_open_ = new Log2Histogram(30);
291
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 2263 hist_fs_read_ = new Log2Histogram(30);
292
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 2263 hist_fs_release_ = new Log2Histogram(30);
293 2263 }
294
295
296 /**
297 * Figure out mode of operation and cache directory. Checking options for
298 * sanity is in a separate method.
299 */
300 1926 FileSystem::PosixCacheSettings FileSystem::DeterminePosixCacheSettings(
301 const string &instance) {
302 1926 string optarg;
303 1926 PosixCacheSettings settings;
304
305
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 3852 if (options_mgr_->GetValue(MkCacheParm("CVMFS_CACHE_REFCOUNT", instance),
306 &optarg)
307
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 3852 && options_mgr_->IsOff(optarg)) {
308 ✗ settings.do_refcount = false;
309 }
310
311 7704 if (options_mgr_->GetValue(
312
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 3852 MkCacheParm("CVMFS_CACHE_CLEANUP_NONOPENLRU", instance), &optarg)
313
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 3852 && options_mgr_->IsOn(optarg)) {
314 // Enable this policy only in a refcounted cache.
315 // Because it's the reference counter who will say if a file is open.
316 ✗ settings.cleanup_unused_first = settings.do_refcount;
317 }
318
319
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 3852 if (options_mgr_->GetValue(MkCacheParm("CVMFS_CACHE_SHARED", instance),
320 &optarg)
321
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 3852 && options_mgr_->IsOn(optarg)) {
322 74 settings.is_shared = true;
323 }
324
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 3852 if (options_mgr_->GetValue(MkCacheParm("CVMFS_CACHE_SERVER_MODE", instance),
325 &optarg)
326
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 3852 && options_mgr_->IsOn(optarg)) {
327 ✗ settings.avoid_rename = true;
328 }
329
330
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 1926 if (type_ == kFsFuse)
331 1794 settings.quota_limit = kDefaultQuotaLimit;
332
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 1926 if (options_mgr_->GetValue(MkCacheParm("CVMFS_CACHE_QUOTA_LIMIT", instance),
333 &optarg)) {
334
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 407 settings.quota_limit = String2Int64(optarg) * 1024 * 1024;
335 }
336
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 1926 if (settings.quota_limit > 0)
337 1498 settings.is_managed = true;
338
339
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 1926 settings.cache_path = kDefaultCacheBase;
340
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 1926 if (options_mgr_->GetValue(MkCacheParm("CVMFS_CACHE_BASE", instance),
341 &optarg)) {
342
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 1831 settings.cache_path = MakeCanonicalPath(optarg);
343 1831 settings.cache_base_defined = true;
344 }
345
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 1926 if (settings.is_shared) {
346
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 74 settings.cache_path += "/shared";
347 } else {
348
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 1852 settings.cache_path += "/" + name_;
349 }
350
351 // CheckCacheMode makes sure that CVMFS_CACHE_DIR and CVMFS_CACHE_BASE are
352 // not set at the same time.
353
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 1926 if (options_mgr_->GetValue(MkCacheParm("CVMFS_CACHE_DIR", instance),
354 &optarg)) {
355 95 settings.cache_dir_defined = true;
356
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 95 settings.cache_path = optarg;
357 }
358
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 1926 if (options_mgr_->GetValue(MkCacheParm("CVMFS_CACHE_ALIEN", instance),
359 &optarg)) {
360 230 settings.is_alien = true;
361
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 230 settings.cache_path = optarg;
362 }
363 // We already changed the cwd to the workspace
364 // Which is only done if using FUSE
365
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 1926 if ((type_ == kFsFuse) && (settings.cache_path == workspace_fullpath_)) {
366
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 1572 settings.cache_path = ".";
367 }
368
369 // The cache workspace usually is the cache directory, unless explicitly
370 // set otherwise
371
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 1926 settings.workspace = settings.cache_path;
372
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 3852 if (options_mgr_->GetValue(MkCacheParm("CVMFS_CACHE_WORKSPACE", instance),
373 &optarg)
374
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 3852 || options_mgr_->GetValue("CVMFS_WORKSPACE", &optarg)) {
375 // Used for the shared quota manager
376
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 78 settings.workspace = optarg;
377 }
378
379 3852 return settings;
380 1926 }
381
382
383 2263 bool FileSystem::DetermineNfsMode() {
384 2263 string optarg;
385
386
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 4526 if (options_mgr_->GetValue("CVMFS_NFS_SOURCE", &optarg)
387
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 4526 && options_mgr_->IsOn(optarg)) {
388 148 nfs_mode_ |= kNfsMaps;
389
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 148 if (options_mgr_->GetValue("CVMFS_NFS_SHARED", &optarg)) {
390 111 nfs_mode_ |= kNfsMapsHa;
391
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 111 nfs_maps_dir_ = optarg;
392 }
393 }
394
395
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 2263 if ((type_ == kFsLibrary) && (nfs_mode_ != kNfsNone)) {
396 ✗ boot_error_ = "Failure: libcvmfs does not support NFS export.";
397 ✗ boot_status_ = loader::kFailOptions;
398 ✗ return false;
399 }
400 2263 return true;
401 2263 }
402
403
404 2263 FileSystem::FileSystem(const FileSystem::FileSystemInfo &fs_info)
405
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 2263 : name_(fs_info.name)
406
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 2263 , exe_path_(fs_info.exe_path)
407 2263 , type_(fs_info.type)
408 2263 , options_mgr_(fs_info.options_mgr)
409 2263 , wait_workspace_(fs_info.wait_workspace)
410 2263 , foreground_(fs_info.foreground)
411 2263 , n_fs_open_(NULL)
412 2263 , n_fs_dir_open_(NULL)
413 2263 , n_fs_lookup_(NULL)
414 2263 , n_fs_lookup_negative_(NULL)
415 2263 , n_fs_stat_(NULL)
416 2263 , n_fs_stat_stale_(NULL)
417 2263 , n_fs_statfs_(NULL)
418 2263 , n_fs_statfs_cached_(NULL)
419 2263 , n_fs_read_(NULL)
420 2263 , n_fs_readlink_(NULL)
421 2263 , n_fs_forget_(NULL)
422 2263 , n_fs_inode_replace_(NULL)
423 2263 , no_open_files_(NULL)
424 2263 , no_open_dirs_(NULL)
425 2263 , n_eio_total_(NULL)
426 2263 , n_eio_01_(NULL)
427 2263 , n_eio_02_(NULL)
428 2263 , n_eio_03_(NULL)
429 2263 , n_eio_04_(NULL)
430 2263 , n_eio_05_(NULL)
431 2263 , n_eio_06_(NULL)
432 2263 , n_eio_07_(NULL)
433 2263 , n_eio_08_(NULL)
434 2263 , n_emfile_(NULL)
435 2263 , statistics_(NULL)
436 2263 , fd_workspace_lock_(-1)
437 2263 , found_previous_crash_(false)
438 2263 , nfs_mode_(kNfsNone)
439 2263 , cache_mgr_(NULL)
440 2263 , uuid_cache_(NULL)
441 2263 , nfs_maps_(NULL)
442 4526 , has_custom_sqlitevfs_(false) {
443
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 2263 assert(!g_alive);
444 2263 g_alive = true;
445 2263 g_uid = geteuid();
446 2263 g_gid = getegid();
447
448 2263 string optarg;
449 9052 if (options_mgr_->GetValue(
450
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 4526 MkCacheParm("CVMFS_CACHE_SERVER_MODE", kDefaultCacheMgrInstance),
451 &optarg)
452
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 4526 && options_mgr_->IsOn(optarg)) {
453 ✗ g_raw_symlinks = true;
454 }
455 2263 }
456
457
458 2259 FileSystem::~FileSystem() {
459 2259 ClientCtx::CleanupInstance();
460
461
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 2259 if (has_custom_sqlitevfs_)
462 1886 sqlite::UnregisterVfsRdOnly();
463
464
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 2259 delete uuid_cache_;
465
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 2259 delete nfs_maps_;
466
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 2259 delete cache_mgr_;
467
468
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 2259 if (sqlite3_temp_directory) {
469 2219 sqlite3_free(sqlite3_temp_directory);
470 2219 sqlite3_temp_directory = NULL;
471 }
472
473
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 2259 if (!path_crash_guard_.empty())
474 2219 unlink(path_crash_guard_.c_str());
475
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 2259 if (!path_workspace_lock_.empty())
476 2219 unlink(path_workspace_lock_.c_str());
477
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 2259 if (fd_workspace_lock_ >= 0)
478 2219 UnlockFile(fd_workspace_lock_);
479
480 2259 sqlite3_shutdown();
481 2259 SqliteMemoryManager::CleanupInstance();
482
483
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 2259 delete hist_fs_lookup_;
484
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 2259 delete hist_fs_forget_multi_;
485
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 2259 delete hist_fs_forget_;
486
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 2259 delete hist_fs_getattr_;
487
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 2259 delete hist_fs_readlink_;
488
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 2259 delete hist_fs_opendir_;
489
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 2259 delete hist_fs_releasedir_;
490
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 2259 delete hist_fs_readdir_;
491
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 2259 delete hist_fs_open_;
492
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 2259 delete hist_fs_read_;
493
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 2259 delete hist_fs_release_;
494
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 2259 delete statistics_;
495
496 2259 SetLogSyslogPrefix("");
497 2259 SetLogMicroSyslog("");
498 2259 SetLogDebugFile("");
499 2259 google::protobuf::ShutdownProtobufLibrary();
500 2259 g_alive = false;
501 2259 }
502
503
504 2223 bool FileSystem::LockWorkspace() {
505
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 2223 path_workspace_lock_ = workspace_ + "/lock." + name_;
506 2223 fd_workspace_lock_ = TryLockFile(path_workspace_lock_);
507
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 2223 if (fd_workspace_lock_ >= 0)
508 2222 return true;
509
510
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 1 if (fd_workspace_lock_ == -1) {
511 ✗ boot_error_ = "could not acquire workspace lock " + path_workspace_lock_
512 ✗ + " (" + strerror(errno) + ")";
513 ✗ boot_status_ = loader::kFailCacheDir;
514 ✗ return false;
515 }
516
517
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 1 assert(fd_workspace_lock_ == -2);
518
519
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 1 if (!wait_workspace_) {
520 1 boot_status_ = loader::kFailLockWorkspace;
521 1 return false;
522 }
523
524 ✗ fd_workspace_lock_ = LockFile(path_workspace_lock_);
525 ✗ if (fd_workspace_lock_ < 0) {
526 ✗ boot_error_ = "could not acquire workspace lock " + path_workspace_lock_
527 ✗ + " (" + strerror(errno) + ")";
528 ✗ boot_status_ = loader::kFailCacheDir;
529 ✗ return false;
530 }
531 ✗ return true;
532 }
533
534
535 3449 void FileSystem::LogSqliteError(void *user_data __attribute__((unused)),
536 int sqlite_extended_error,
537 const char *message) {
538 3449 int log_dest = kLogDebug;
539 3449 const int sqlite_error = sqlite_extended_error & 0xFF;
540
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 3449 switch (sqlite_error) {
541 150 case SQLITE_INTERNAL:
542 case SQLITE_PERM:
543 case SQLITE_NOMEM:
544 case SQLITE_IOERR:
545 case SQLITE_CORRUPT:
546 case SQLITE_FULL:
547 case SQLITE_CANTOPEN:
548 case SQLITE_MISUSE:
549 case SQLITE_FORMAT:
550 case SQLITE_NOTADB:
551 150 log_dest |= kLogSyslogErr;
552 150 break;
553 3299 case SQLITE_WARNING:
554 case SQLITE_NOTICE:
555 default:
556 3299 break;
557 }
558
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 3449 LogCvmfs(kLogCvmfs, log_dest, "SQlite3: %s (%d)", message,
559 sqlite_extended_error);
560 3449 }
561
562
563 /**
564 * Creates the cache parameter for a specific instance of the cache. Injects
565 * the instance name such that CVMFS_CACHE_FOO_BAR becomes
566 * CVMFS_CACHE_<INSTANCE>_FOO_BAR
567 */
568 22076 string FileSystem::MkCacheParm(const string &generic_parameter,
569 const string &instance) {
570
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 22076 assert(HasPrefix(generic_parameter, "CVMFS_CACHE_", false));
571
572
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 22076 if (instance == kDefaultCacheMgrInstance) {
573 // Compatibility parameter names
574 18635 if ((generic_parameter == "CVMFS_CACHE_SHARED")
575
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 18635 && !options_mgr_->IsDefined(generic_parameter)) {
576
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 1815 return "CVMFS_SHARED_CACHE";
577 }
578 16820 if ((generic_parameter == "CVMFS_CACHE_ALIEN")
579
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 16820 && !options_mgr_->IsDefined(generic_parameter)) {
580
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 1815 return "CVMFS_ALIEN_CACHE";
581 }
582 15005 if ((generic_parameter == "CVMFS_CACHE_SERVER_MODE")
583
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 15005 && !options_mgr_->IsDefined(generic_parameter)) {
584
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 4078 return "CVMFS_SERVER_CACHE_MODE";
585 }
586 10927 if ((generic_parameter == "CVMFS_CACHE_QUOTA_LIMIT")
587
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 10927 && !options_mgr_->IsDefined(generic_parameter)) {
588
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 1815 return "CVMFS_QUOTA_LIMIT";
589 }
590 9112 return generic_parameter;
591 }
592
593
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 6882 return "CVMFS_CACHE_" + instance + "_" + generic_parameter.substr(12);
594 }
595
596
597 ✗ void FileSystem::ResetErrorCounters() {
598 ✗ io_error_info_.Reset();
599 ✗ n_eio_total_->Set(0);
600 ✗ n_eio_01_->Set(0);
601 ✗ n_eio_02_->Set(0);
602 ✗ n_eio_03_->Set(0);
603 ✗ n_eio_04_->Set(0);
604 ✗ n_eio_05_->Set(0);
605 ✗ n_eio_06_->Set(0);
606 ✗ n_eio_07_->Set(0);
607 ✗ n_eio_08_->Set(0);
608 ✗ n_emfile_->Set(0);
609 }
610
611
612 /**
613 * Can be recursive for the tiered cache manager.
614 */
615 2666 CacheManager *FileSystem::SetupCacheMgr(const string &instance) {
616
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 2666 if (constructed_instances_.find(instance) != constructed_instances_.end()) {
617
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 37 boot_error_ = "circular cache definition: " + instance;
618 37 boot_status_ = loader::kFailCacheDir;
619 37 return NULL;
620 }
621
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 2629 constructed_instances_.insert(instance);
622
623
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 2629 LogCvmfs(kLogCvmfs, kLogDebug, "setting up cache manager instance %s",
624 instance.c_str());
625 2629 string instance_type;
626
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 2629 if (instance == kDefaultCacheMgrInstance) {
627
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 1815 instance_type = "posix";
628 } else {
629
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 814 options_mgr_->GetValue(MkCacheParm("CVMFS_CACHE_TYPE", instance),
630 &instance_type);
631 }
632
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 2629 if (instance_type == "posix") {
633
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 1926 return SetupPosixCacheMgr(instance);
634
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 703 } else if (instance_type == "ram") {
635
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 370 return SetupRamCacheMgr(instance);
636
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 333 } else if (instance_type == "tiered") {
637
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 296 return SetupTieredCacheMgr(instance);
638
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 37 } else if (instance_type == "external") {
639 ✗ return SetupExternalCacheMgr(instance);
640 } else {
641
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 37 boot_error_ = "invalid cache manager type for '" + instance
642
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 37 + "':" + instance_type;
643 37 boot_status_ = loader::kFailCacheDir;
644 37 return NULL;
645 }
646 2629 }
647
648
649 ✗ CacheManager *FileSystem::SetupExternalCacheMgr(const string &instance) {
650 ✗ string optarg;
651 ✗ unsigned nfiles = kDefaultNfiles;
652 ✗ if (options_mgr_->GetValue("CVMFS_NFILES", &optarg))
653 ✗ nfiles = String2Uint64(optarg);
654 ✗ vector<string> cmd_line;
655 ✗ if (options_mgr_->GetValue(MkCacheParm("CVMFS_CACHE_CMDLINE", instance),
656 &optarg)) {
657 ✗ cmd_line = SplitString(optarg, ',');
658 }
659
660 ✗ if (!options_mgr_->GetValue(MkCacheParm("CVMFS_CACHE_LOCATOR", instance),
661 &optarg)) {
662 ✗ boot_error_ = MkCacheParm("CVMFS_CACHE_LOCATOR", instance) + " missing";
663 ✗ boot_status_ = loader::kFailCacheDir;
664 ✗ return NULL;
665 }
666
667 const std::unique_ptr<ExternalCacheManager::PluginHandle> plugin_handle(
668 ✗ ExternalCacheManager::CreatePlugin(optarg, cmd_line));
669 ✗ if (!plugin_handle->IsValid()) {
670 ✗ boot_error_ = plugin_handle->error_msg();
671 ✗ boot_status_ = loader::kFailCacheDir;
672 ✗ return NULL;
673 }
674 ✗ ExternalCacheManager *cache_mgr = ExternalCacheManager::Create(
675 ✗ plugin_handle->fd_connection(), nfiles, name_ + ":" + instance);
676 ✗ if (cache_mgr == NULL) {
677 ✗ boot_error_ = "failed to create external cache manager for " + instance;
678 ✗ boot_status_ = loader::kFailCacheDir;
679 ✗ return NULL;
680 }
681 ✗ cache_mgr->AcquireQuotaManager(ExternalQuotaManager::Create(cache_mgr));
682 ✗ return cache_mgr;
683 }
684
685
686 1926 CacheManager *FileSystem::SetupPosixCacheMgr(const string &instance) {
687
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 1926 const PosixCacheSettings settings = DeterminePosixCacheSettings(instance);
688
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 1926 if (!CheckPosixCacheSettings(settings))
689 111 return NULL;
690 std::unique_ptr<PosixCacheManager> cache_mgr(PosixCacheManager::Create(
691 1815 settings.cache_path, settings.is_alien,
692 1815 settings.avoid_rename ? PosixCacheManager::kRenameLink
693 : PosixCacheManager::kRenameNormal,
694
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 1815 settings.do_refcount, settings.cleanup_unused_first));
695
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 1815 if (cache_mgr.get() == nullptr) {
696 ✗ boot_error_ = "Failed to setup posix cache '" + instance + "' in "
697 ✗ + settings.cache_path + ": " + strerror(errno);
698 ✗ boot_status_ = loader::kFailCacheDir;
699 ✗ return NULL;
700 }
701
702 // Sentinel file for future use
703 // Might be a read-only cache
704 1815 const bool ignore_failure = settings.is_alien;
705
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 1815 CreateFile(settings.cache_path + "/.cvmfscache", 0600, ignore_failure);
706
707
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 1815 if (settings.is_managed) {
708
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 1461 if (!SetupPosixQuotaMgr(settings, cache_mgr.get()))
709 ✗ return NULL;
710 }
711 1815 return cache_mgr.release();
712 1926 }
713
714
715 370 CacheManager *FileSystem::SetupRamCacheMgr(const string &instance) {
716 370 string optarg;
717 370 unsigned nfiles = kDefaultNfiles;
718
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 370 if (options_mgr_->GetValue("CVMFS_NFILES", &optarg)) {
719 ✗ nfiles = String2Uint64(optarg);
720 }
721 uint64_t sz_cache_bytes;
722
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 370 if (options_mgr_->GetValue(MkCacheParm("CVMFS_CACHE_SIZE", instance),
723 &optarg)) {
724
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 370 if (HasSuffix(optarg, "%", false)) {
725 ✗ sz_cache_bytes = platform_memsize() * String2Uint64(optarg) / 100;
726 } else {
727
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 370 sz_cache_bytes = String2Uint64(optarg) * 1024 * 1024;
728 }
729 } else {
730 ✗ sz_cache_bytes = platform_memsize() >> 5; // ~3%
731 }
732 370 MemoryKvStore::MemoryAllocator alloc = MemoryKvStore::kMallocHeap;
733
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 370 if (options_mgr_->GetValue(MkCacheParm("CVMFS_CACHE_MALLOC", instance),
734 &optarg)) {
735
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 74 if (optarg == "libc") {
736 37 alloc = MemoryKvStore::kMallocLibc;
737
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 37 } else if (optarg == "heap") {
738 ✗ alloc = MemoryKvStore::kMallocHeap;
739 } else {
740 boot_error_ = "Failure: unknown malloc "
741
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 74 + MkCacheParm("CVMFS_CACHE_MALLOC", instance) + "="
742
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 37 + optarg;
743 37 boot_status_ = loader::kFailOptions;
744 37 return NULL;
745 }
746 }
747 333 sz_cache_bytes = RoundUp8(
748 333 std::max(static_cast<uint64_t>(40 * 1024 * 1024), sz_cache_bytes));
749 RamCacheManager *cache_mgr = new RamCacheManager(
750 sz_cache_bytes,
751 nfiles,
752 alloc,
753
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 333 perf::StatisticsTemplate("cache." + instance, statistics_));
754
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 333 if (cache_mgr == NULL) {
755 ✗ boot_error_ = "failed to create ram cache manager for " + instance;
756 ✗ boot_status_ = loader::kFailCacheDir;
757 ✗ return NULL;
758 }
759
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 333 cache_mgr->AcquireQuotaManager(new NoopQuotaManager());
760 333 return cache_mgr;
761 370 }
762
763
764 296 CacheManager *FileSystem::SetupTieredCacheMgr(const string &instance) {
765 296 string optarg;
766
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 296 if (!options_mgr_->GetValue(MkCacheParm("CVMFS_CACHE_UPPER", instance),
767 &optarg)) {
768
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 37 boot_error_ = MkCacheParm("CVMFS_CACHE_UPPER", instance) + " missing";
769 37 boot_status_ = loader::kFailOptions;
770 37 return NULL;
771 }
772
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 259 std::unique_ptr<CacheManager> upper(SetupCacheMgr(optarg));
773
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 259 if (upper.get() == nullptr)
774 ✗ return NULL;
775
776
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 259 if (!options_mgr_->GetValue(MkCacheParm("CVMFS_CACHE_LOWER", instance),
777 &optarg)) {
778
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 37 boot_error_ = MkCacheParm("CVMFS_CACHE_LOWER", instance) + " missing";
779 37 boot_status_ = loader::kFailOptions;
780 37 return NULL;
781 }
782
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 222 std::unique_ptr<CacheManager> lower(SetupCacheMgr(optarg));
783
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 222 if (lower.get() == nullptr)
784 37 return NULL;
785
786
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 185 CacheManager *tiered = TieredCacheManager::Create(upper.release(),
787 lower.release());
788
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 185 if (tiered == NULL) {
789 ✗ boot_error_ = "Failed to setup tiered cache manager " + instance;
790 ✗ boot_status_ = loader::kFailCacheDir;
791 ✗ return NULL;
792 }
793 740 if (options_mgr_->GetValue(
794
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 370 MkCacheParm("CVMFS_CACHE_LOWER_READONLY", instance), &optarg)
795
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 370 && options_mgr_->IsOn(optarg)) {
796 ✗ static_cast<TieredCacheManager *>(tiered)->SetLowerReadOnly();
797 }
798 185 return tiered;
799 296 }
800
801
802 2222 bool FileSystem::SetupCrashGuard() {
803
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 2222 path_crash_guard_ = workspace_ + "/running." + name_;
804 platform_stat64 info;
805 2222 int retval = platform_stat(path_crash_guard_.c_str(), &info);
806
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 2222 if (retval == 0) {
807 37 found_previous_crash_ = true;
808
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 37 LogCvmfs(kLogCvmfs, kLogDebug | kLogSyslogWarn,
809 "looks like cvmfs has been crashed previously");
810 }
811
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 2222 retval = open(path_crash_guard_.c_str(), O_RDONLY | O_CREAT, 0600);
812
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 2222 if (retval < 0) {
813 ✗ boot_error_ = "could not open running sentinel (" + StringifyInt(errno)
814 ✗ + ")";
815 ✗ boot_status_ = loader::kFailCacheDir;
816 ✗ return false;
817 }
818
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 2222 close(retval);
819 2222 return true;
820 }
821
822
823 2222 bool FileSystem::SetupCwd() {
824
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 2222 if (type_ == kFsFuse) {
825 // Try to jump to workspace / cache directory. This tests, if it is
826 // accessible and it brings speed later on.
827 2090 const int retval = chdir(workspace_.c_str());
828
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 2090 if (retval != 0) {
829 ✗ boot_error_ = "workspace " + workspace_ + " is unavailable";
830 ✗ boot_status_ = loader::kFailCacheDir;
831 ✗ return false;
832 }
833 2090 workspace_ = ".";
834 2090 return true;
835 }
836
837 // Note: as of version 2.4 support for CVMFS_CWD_CACHE is dropped due to
838 // disproportionate large complexity to configure correctly. This affects
839 // only libcvmfs, mostly the legacy part.
840 // string optarg;
841 // if (options_mgr_->GetValue("CVMFS_CWD_CACHE", &optarg) &&
842 // options_mgr_->IsOn(optarg))
843 // {
844 // ...
845 // }
846 132 return true;
847 }
848
849
850 2263 void FileSystem::SetupLoggingStandalone(const OptionsManager &options_mgr,
851 const std::string &prefix) {
852 2263 string optarg;
853
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 2263 if (options_mgr.GetValue("CVMFS_SYSLOG_LEVEL", &optarg))
854
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 30 SetLogSyslogLevel(String2Uint64(optarg));
855
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 2263 if (options_mgr.GetValue("CVMFS_SYSLOG_FACILITY", &optarg))
856 ✗ SetLogSyslogFacility(String2Int64(optarg));
857
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 2263 if (options_mgr.GetValue("CVMFS_USYSLOG", &optarg))
858 ✗ SetLogMicroSyslog(optarg);
859
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 2263 if (options_mgr.GetValue("CVMFS_DEBUGLOG", &optarg))
860 ✗ SetLogDebugFile(optarg);
861
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 2263 if (options_mgr.GetValue("CVMFS_SYSLOG_PREFIX", &optarg)) {
862
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 8 SetLogSyslogPrefix(optarg);
863 } else {
864
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 2255 SetLogSyslogPrefix(prefix);
865 }
866 2263 }
867
868
869 2263 void FileSystem::SetupLogging() {
870 2263 SetupLoggingStandalone(*options_mgr_, name_);
871 2263 }
872
873
874 1889 bool FileSystem::SetupNfsMaps() {
875 #ifdef CVMFS_NFS_SUPPORT
876 ✗ if (!IsHaNfsSource())
877 ✗ nfs_maps_dir_ = workspace_;
878
879 ✗ string no_nfs_sentinel;
880 ✗ if (cache_mgr_->id() == kPosixCacheManager) {
881 ✗ PosixCacheManager *posix_cache_mgr = reinterpret_cast<PosixCacheManager *>(
882 cache_mgr_);
883 ✗ no_nfs_sentinel = posix_cache_mgr->cache_path() + "/no_nfs_maps." + name_;
884 ✗ if (!IsNfsSource()) {
885 // Might be a read-only cache
886 ✗ const bool ignore_failure = posix_cache_mgr->alien_cache();
887 ✗ CreateFile(no_nfs_sentinel, 0600, ignore_failure);
888 ✗ return true;
889 }
890 } else {
891 ✗ if (IsNfsSource()) {
892 ✗ boot_error_ = "NFS source only works with POSIX cache manager.";
893 ✗ boot_status_ = loader::kFailNfsMaps;
894 ✗ return false;
895 }
896 ✗ return true;
897 }
898
899 ✗ assert(cache_mgr_->id() == kPosixCacheManager);
900 ✗ assert(IsNfsSource());
901 ✗ if (!no_nfs_sentinel.empty() && FileExists(no_nfs_sentinel)) {
902 boot_error_ = "Cache was used without NFS maps before. "
903 ✗ "It has to be wiped out.";
904 ✗ boot_status_ = loader::kFailNfsMaps;
905 ✗ return false;
906 }
907
908 // nfs maps need to be protected by workspace lock
909 ✗ PosixCacheManager *posix_cache_mgr = reinterpret_cast<PosixCacheManager *>(
910 cache_mgr_);
911 ✗ if (posix_cache_mgr->cache_path() != workspace_) {
912 boot_error_ = "Cache directory and workspace must be identical for "
913 ✗ "NFS export";
914 ✗ boot_status_ = loader::kFailNfsMaps;
915 ✗ return false;
916 }
917
918 ✗ const string inode_cache_dir = nfs_maps_dir_ + "/nfs_maps." + name_;
919 ✗ if (!MkdirDeep(inode_cache_dir, 0700)) {
920 ✗ boot_error_ = "Failed to initialize NFS maps";
921 ✗ boot_status_ = loader::kFailNfsMaps;
922 ✗ return false;
923 }
924
925 // TODO(jblomer): make this a manager class
926 ✗ if (IsHaNfsSource()) {
927 ✗ nfs_maps_ = NfsMapsSqlite::Create(
928 inode_cache_dir,
929 catalog::ClientCatalogManager::kInodeOffset + 1,
930 ✗ found_previous_crash_,
931 statistics_);
932 } else {
933 ✗ nfs_maps_ = NfsMapsLeveldb::Create(
934 inode_cache_dir,
935 catalog::ClientCatalogManager::kInodeOffset + 1,
936 ✗ found_previous_crash_,
937 statistics_);
938 }
939
940 ✗ if (nfs_maps_ == NULL) {
941 ✗ boot_error_ = "Failed to initialize NFS maps";
942 ✗ boot_status_ = loader::kFailNfsMaps;
943 ✗ return false;
944 }
945
946 ✗ string optarg;
947 ✗ if (options_mgr_->GetValue("CVMFS_NFS_INTERLEAVED_INODES", &optarg)) {
948 ✗ vector<string> tokens = SplitString(optarg, '%');
949 ✗ if (tokens.size() != 2) {
950 boot_error_ = "invalid format for CVMFS_NFS_INTERLEAVED_INODES: "
951 ✗ + optarg;
952 ✗ boot_status_ = loader::kFailNfsMaps;
953 ✗ return false;
954 }
955 ✗ nfs_maps_->SetInodeResidue(String2Uint64(tokens[1]),
956 ✗ String2Uint64(tokens[0]));
957 }
958
959 ✗ return true;
960
961 #else
962 1889 return true;
963 #endif
964 }
965
966
967 1461 bool FileSystem::SetupPosixQuotaMgr(
968 const FileSystem::PosixCacheSettings &settings, CacheManager *cache_mgr) {
969
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 1461 assert(settings.quota_limit >= 0);
970 1461 const int64_t quota_threshold = settings.quota_limit / 2;
971
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 1461 string cache_workspace = settings.cache_path;
972
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 1461 if (settings.cache_path != settings.workspace) {
973 ✗ LogCvmfs(kLogQuota, kLogDebug | kLogSyslog,
974 "using workspace %s to protect cache database in %s",
975 settings.workspace.c_str(), settings.cache_path.c_str());
976 ✗ cache_workspace += ":" + settings.workspace;
977 }
978 PosixQuotaManager *quota_mgr;
979
980
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 1461 if (settings.is_shared) {
981 ✗ quota_mgr = PosixQuotaManager::CreateShared(exe_path_,
982 cache_workspace,
983 ✗ settings.quota_limit,
984 quota_threshold,
985 ✗ foreground_);
986 ✗ if (quota_mgr == NULL) {
987 ✗ boot_error_ = "Failed to initialize shared lru cache";
988 ✗ boot_status_ = loader::kFailQuota;
989 ✗ return false;
990 }
991 } else {
992 2922 quota_mgr = PosixQuotaManager::Create(cache_workspace,
993 1461 settings.quota_limit,
994 quota_threshold,
995
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 1461 found_previous_crash_);
996
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 1461 if (quota_mgr == NULL) {
997 ✗ boot_error_ = "Failed to initialize lru cache";
998 ✗ boot_status_ = loader::kFailQuota;
999 ✗ return false;
1000 }
1001 }
1002
1003
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 1461 if (quota_mgr->GetSize() > quota_mgr->GetCapacity()) {
1004 ✗ LogCvmfs(kLogCvmfs, kLogDebug | kLogSyslog,
1005 "cache is already beyond quota size "
1006 "(size: %" PRId64 ", capacity: %" PRId64 "), cleaning up",
1007 ✗ quota_mgr->GetSize(), quota_mgr->GetCapacity());
1008 ✗ if (!quota_mgr->Cleanup(quota_threshold)) {
1009 ✗ delete quota_mgr;
1010 ✗ boot_error_ = "Failed to clean up cache";
1011 ✗ boot_status_ = loader::kFailQuota;
1012 ✗ return false;
1013 }
1014 }
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 1461 quota_mgr->SetCleanupPolicy(settings.cleanup_unused_first);
1016
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 1461 const int retval = cache_mgr->AcquireQuotaManager(quota_mgr);
1018
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 1461 assert(retval);
1019 1461 LogCvmfs(kLogCvmfs, kLogDebug,
1020 "CernVM-FS: quota initialized, current size %luMB",
1021
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 1461 quota_mgr->GetSize() / (1024 * 1024));
1022 1461 return true;
1023 1461 }
1024
1025
1026 2263 void FileSystem::SetupSqlite() {
1027 // Make sure SQlite starts clean after initialization
1028 2263 sqlite3_shutdown();
1029
1030 int retval;
1031 2263 retval = sqlite3_config(SQLITE_CONFIG_LOG, FileSystem::LogSqliteError, NULL);
1032
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 2263 assert(retval == SQLITE_OK);
1033 2263 retval = sqlite3_config(SQLITE_CONFIG_MULTITHREAD);
1034
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 2263 assert(retval == SQLITE_OK);
1035 2263 SqliteMemoryManager::GetInstance()->AssignGlobalArenas();
1036
1037 // Disable SQlite3 file locking
1038 2263 retval = sqlite3_vfs_register(sqlite3_vfs_find("unix-none"), 1);
1039
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 2263 assert(retval == SQLITE_OK);
1040 2263 }
1041
1042
1043 /**
1044 * Describes why MkdirDeep() failed for path. Must be called immediately after
1045 * the failure, before errno is clobbered. MkdirDeep() reports EEXIST both for
1046 * a path that is already a directory (not a failure) and for a path that is
1047 * taken by a non-directory, so spell out the latter instead of printing the
1048 * confusing "File exists".
1049 */
1050 3 static string DescribeMkdirFailure(const string &path) {
1051 3 const int saved_errno = errno;
1052 platform_stat64 info;
1053
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 3 if ((platform_stat(path.c_str(), &info) == 0) && !S_ISDIR(info.st_mode))
1054 ✗ return path + " exists but is not a directory";
1055
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 6 return path + " (" + strerror(saved_errno) + ")";
1056 }
1057
1058
1059 2263 bool FileSystem::SetupWorkspace() {
1060 2263 string optarg;
1061 // This is very similar to "determine cache dir". It's for backward
1062 // compatibility with classic cache configuration where there was no
1063 // distinction between workspace and cache.
1064 // Complicated cache configurations should explicitly set CVMFS_WORKSPACE.
1065
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 2263 workspace_ = kDefaultCacheBase;
1066
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 2263 if (options_mgr_->GetValue("CVMFS_CACHE_BASE", &optarg))
1067
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 2165 workspace_ = MakeCanonicalPath(optarg);
1068
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 4526 if (options_mgr_->GetValue("CVMFS_SHARED_CACHE", &optarg)
1069
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 4526 && options_mgr_->IsOn(optarg)) {
1070
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 74 workspace_ += "/shared";
1071 } else {
1072
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 2189 workspace_ += "/" + name_;
1073 }
1074
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 2263 if (options_mgr_->GetValue("CVMFS_CACHE_DIR", &optarg)) {
1075
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 135 if (options_mgr_->IsDefined("CVMFS_CACHE_BASE")) {
1076 boot_error_ = "'CVMFS_CACHE_BASE' and 'CVMFS_CACHE_DIR' are mutually "
1077
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 37 "exclusive";
1078 37 boot_status_ = loader::kFailOptions;
1079 37 return false;
1080 }
1081
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 98 workspace_ = optarg;
1082 }
1083
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 2226 if (options_mgr_->GetValue("CVMFS_WORKSPACE", &optarg))
1084
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 41 workspace_ = optarg;
1085
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 2226 workspace_fullpath_ = workspace_;
1086
1087 // If workspace and alien cache are the same directory, we need to open
1088 // permission now to 0770 to avoid a race when fixing it later
1089 2226 const int mode = 0770;
1090
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 2226 if (!MkdirDeep(workspace_, mode, false)) {
1091 boot_error_ = "cannot create workspace directory "
1092
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 3 + DescribeMkdirFailure(workspace_);
1093 3 boot_status_ = loader::kFailCacheDir;
1094 3 return false;
1095 }
1096
1097
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 2223 if (!LockWorkspace())
1098 1 return false;
1099
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 2222 if (!SetupCwd())
1100 ✗ return false;
1101
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 2222 if (!SetupCrashGuard())
1102 ✗ return false;
1103
1104 2222 return true;
1105 2263 }
1106
1107
1108 1889 void FileSystem::SetupUuid() {
1109
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 1889 uuid_cache_ = cvmfs::Uuid::Create(workspace_ + "/uuid");
1110
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 1889 if (uuid_cache_ == NULL) {
1111 ✗ LogCvmfs(kLogCvmfs, kLogDebug | kLogSyslogWarn,
1112 "failed to load/store %s/uuid", workspace_.c_str());
1113 ✗ uuid_cache_ = cvmfs::Uuid::Create("");
1114 ✗ assert(uuid_cache_ != NULL);
1115 }
1116 1889 }
1117
1118
1119 /**
1120 * Required by CernVM: the fuse module needs to free r/w file descriptor to the
1121 * cache in order to properly unravel the file system stack on shutdown.
1122 */
1123 ✗ void FileSystem::TearDown2ReadOnly() {
1124 ✗ if ((cache_mgr_ != NULL) && (cache_mgr_->id() == kPosixCacheManager)) {
1125 ✗ PosixCacheManager *posix_cache_mgr = reinterpret_cast<PosixCacheManager *>(
1126 cache_mgr_);
1127 ✗ posix_cache_mgr->TearDown2ReadOnly();
1128 }
1129
1130 ✗ unlink(path_crash_guard_.c_str());
1131 ✗ LogCvmfs(kLogCache, kLogSyslog, "switch to read-only cache mode");
1132 ✗ SetLogMicroSyslog("");
1133 }
1134
1135
1136 ✗ void FileSystem::RemapCatalogFd(int from, int to) {
1137 ✗ sqlite::RegisterFdMapping(from, to);
1138 }
1139
1140 ✗ void FileSystem::ReplaceCacheManager(CacheManager *new_cache_mgr) {
1141 ✗ cache_mgr_ = new_cache_mgr;
1142 ✗ sqlite::ReplaceCacheManager(new_cache_mgr);
1143 }
1144
1145
1146 2222 bool FileSystem::TriageCacheMgr() {
1147
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 2222 cache_mgr_instance_ = kDefaultCacheMgrInstance;
1148 2222 string instance;
1149
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 4444 if (options_mgr_->GetValue("CVMFS_CACHE_PRIMARY", &instance)
1150
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 4444 && !instance.empty()) {
1151
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 444 if (!CheckInstanceName(instance))
1152 37 return false;
1153
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 407 cache_mgr_instance_ = instance;
1154 }
1155
1156
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 2185 cache_mgr_ = SetupCacheMgr(cache_mgr_instance_);
1157
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 2185 if (cache_mgr_ == NULL)
1158 296 return false;
1159
1160 1889 std::string optarg;
1161
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 3778 if (options_mgr_->GetValue("CVMFS_STREAMING_CACHE", &optarg)
1162
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 3778 && options_mgr_->IsOn(optarg)) {
1163 ✗ unsigned nfiles = kDefaultNfiles;
1164 ✗ if (options_mgr_->GetValue("CVMFS_NFILES", &optarg))
1165 ✗ nfiles = String2Uint64(optarg);
1166 ✗ size_t buffer_size = StreamingCacheManager::kDefaultBufferSize;
1167 ✗ if (options_mgr_->GetValue("CVMFS_STREAMING_CACHE_BUFFER_SIZE", &optarg))
1168 ✗ buffer_size = String2Uint64(optarg);
1169 ✗ cache_mgr_ = new StreamingCacheManager(nfiles, cache_mgr_, NULL, NULL,
1170 ✗ buffer_size, statistics_);
1171 }
1172
1173 1889 return true;
1174 2222 }
1175
1176
1177 //------------------------------------------------------------------------------
1178
1179
1180 const char *MountPoint::kDefaultAuthzSearchPath = "/usr/libexec/cvmfs/authz";
1181 const char *MountPoint::kDefaultBlacklist = "/etc/cvmfs/blacklist";
1182
1183 1411 bool MountPoint::CheckBlacklists() {
1184 1411 blacklist_paths_.clear();
1185 1411 string blacklist;
1186
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 1411 if (!options_mgr_->GetValue("CVMFS_BLACKLIST", &blacklist))
1187
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 1337 blacklist = kDefaultBlacklist;
1188
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 1411 blacklist_paths_.push_back(blacklist);
1189
1190 1411 bool append = false;
1191
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 1411 if (FileExists(blacklist)) {
1192
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 37 if (!signature_mgr_->LoadBlacklist(blacklist, append)) {
1193 ✗ boot_error_ = "failed to load blacklist " + blacklist;
1194 ✗ boot_status_ = loader::kFailSignature;
1195 ✗ return false;
1196 }
1197 37 append = true;
1198 }
1199
1200 1411 string config_repository_path;
1201
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 1411 if (options_mgr_->HasConfigRepository(fqrn_, &config_repository_path)) {
1202
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 111 blacklist = config_repository_path + "blacklist";
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 111 blacklist_paths_.push_back(blacklist);
1204
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 111 if (FileExists(blacklist)) {
1205
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 74 if (!signature_mgr_->LoadBlacklist(blacklist, append)) {
1206 ✗ boot_error_ = "failed to load blacklist from config repository";
1207 ✗ boot_status_ = loader::kFailSignature;
1208 ✗ return false;
1209 }
1210 }
1211 }
1212
1213 1411 return true;
1214 1411 }
1215
1216
1217 /**
1218 * Like CheckBlacklists but supposed to be used after bootstrap, possibly in
1219 * multi-threaded context.
1220 */
1221 74 bool MountPoint::ReloadBlacklists() {
1222 74 const bool result = true;
1223 74 bool append = false;
1224
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 185 for (unsigned i = 0; i < blacklist_paths_.size(); ++i) {
1225
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 111 const string blacklist = blacklist_paths_[i];
1226
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 111 if (FileExists(blacklist)) {
1227 ✗ const bool retval = signature_mgr_->LoadBlacklist(blacklist, append);
1228 // TODO(jblomer): this can leave us with a half-loaded blacklist
1229 ✗ if (!retval)
1230 ✗ return false;
1231 ✗ append = true;
1232 }
1233
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 111 }
1234 74 return result;
1235 }
1236
1237 /**
1238 * Disables kernel caching of symlinks.
1239 * Symlink caching requires fuse >= 3.10 (FUSE_CAP_CACHE_SYMLINKS) and
1240 * linux kernel >= 4.2. Some OS might backport it.
1241 *
1242 * NOTE: This function should only be called before or within cvmfs_init().
1243 *
1244 */
1245 ✗ void MountPoint::DisableCacheSymlinks() { cache_symlinks_ = false; }
1246
1247 /**
1248 * Instead of invalidate dentries, they should be expired.
1249 * Fixes issues with mount-on-top mounts and symlink caching.
1250 */
1251 ✗ void MountPoint::EnableFuseExpireEntry() { fuse_expire_entry_ = true; }
1252
1253
1254 /**
1255 * The option_mgr parameter can be NULL, in which case the global option manager
1256 * from the file system is used.
1257 */
1258 1448 MountPoint *MountPoint::Create(const string &fqrn,
1259 FileSystem *file_system,
1260 OptionsManager *options_mgr) {
1261
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 1448 if (options_mgr == NULL)
1262 1366 options_mgr = file_system->options_mgr();
1263 std::unique_ptr<MountPoint> mountpoint(
1264
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 1448 new MountPoint(fqrn, file_system, options_mgr));
1265
1266 // At this point, we have a repository name, the type (fuse or library) and
1267 // an options manager (which can be the same than the FileSystem's one).
1268
1269
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 1448 mountpoint->CreateStatistics();
1270
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 1448 mountpoint->CreateAuthz();
1271
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 1448 mountpoint->backoff_throttle_ = new BackoffThrottle();
1272
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 1448 if (!mountpoint->CreateSignatureManager() || !mountpoint->CheckBlacklists())
1274 37 return mountpoint.release();
1275
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 1411 if (!mountpoint->CreateDownloadManagers())
1276 589 return mountpoint.release();
1277
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 822 if (file_system->cache_mgr()->id() == kStreamingCacheManager) {
1278 StreamingCacheManager
1279 ✗ *streaming_cachemgr = dynamic_cast<StreamingCacheManager *>(
1280 ✗ file_system->cache_mgr());
1281 ✗ streaming_cachemgr->SetRegularDownloadManager(mountpoint->download_mgr());
1282 ✗ streaming_cachemgr->SetExternalDownloadManager(
1283 mountpoint->external_download_mgr());
1284 }
1285
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 822 if (!mountpoint->CreateResolvConfWatcher()) {
1286 ✗ return mountpoint.release();
1287 }
1288
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 822 mountpoint->CreateFetchers();
1289
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 822 mountpoint->SetupPartialReplica();
1290
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 822 if (!mountpoint->CreateCatalogManager())
1291 265 return mountpoint.release();
1292
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 557 if (!mountpoint->CreateTracer())
1293 ✗ return mountpoint.release();
1294
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 557 mountpoint->ReEvaluateAuthz();
1296
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 557 mountpoint->CreateTables();
1297
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 557 if (!mountpoint->SetupBehavior())
1298 ✗ return mountpoint.release();
1299
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 557 mountpoint->CreateBundleMgr();
1300
1301 557 mountpoint->boot_status_ = loader::kFailOk;
1302 557 return mountpoint.release();
1303 1448 }
1304
1305
1306 1448 void MountPoint::CreateAuthz() {
1307 1448 string optarg;
1308 1448 string authz_helper;
1309
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 1448 if (options_mgr_->GetValue("CVMFS_AUTHZ_HELPER", &optarg))
1310 ✗ authz_helper = optarg;
1311
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 1448 string authz_search_path(kDefaultAuthzSearchPath);
1312
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 1448 if (options_mgr_->GetValue("CVMFS_AUTHZ_SEARCH_PATH", &optarg))
1313 ✗ authz_search_path = optarg;
1314
1315 2896 authz_fetcher_ = new AuthzExternalFetcher(fqrn_, authz_helper,
1316
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 1448 authz_search_path, options_mgr_);
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 1448 assert(authz_fetcher_ != NULL);
1318
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 1448 authz_session_mgr_ = AuthzSessionManager::Create(authz_fetcher_, statistics_);
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 1448 assert(authz_session_mgr_ != NULL);
1321
1322
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 1448 authz_attachment_ = new AuthzAttachment(authz_session_mgr_);
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 1448 assert(authz_attachment_ != NULL);
1324 1448 }
1325
1326
1327 557 void MountPoint::CreateBundleMgr() {
1328 557 std::string optarg;
1329
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 1114 if (options_mgr_->GetValue("CVMFS_PREFETCH_FILEBUNDLES", &optarg)
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 1114 && options_mgr_->IsOn(optarg)) {
1331 ✗ bundle_mgr_ = new BundleMgr(this);
1332 }
1333 557 }
1334
1335
1336 822 bool MountPoint::CreateCatalogManager() {
1337 822 string optarg;
1338
1339
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 822 catalog_mgr_ = new catalog::ClientCatalogManager(this);
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 822 SetupInodeAnnotation();
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 822 if (!SetupOwnerMaps())
1343 37 return false;
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 785 shash::Any root_hash;
1345
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 785 if (!DetermineRootHash(&root_hash))
1346 74 return false;
1347
1348 bool retval;
1349
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 711 if (root_hash.IsNull()) {
1350
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 360 retval = catalog_mgr_->Init();
1351 } else {
1352 351 fixed_catalog_ = true;
1353
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 702 const bool alt_root_path = options_mgr_->GetValue("CVMFS_ALT_ROOT_PATH",
1354 &optarg)
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 702 && options_mgr_->IsOn(optarg);
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 351 retval = catalog_mgr_->InitFixed(root_hash, alt_root_path);
1357 }
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 711 if (!retval) {
1359
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 117 boot_error_ = "Failed to initialize root file catalog";
1360 117 boot_status_ = loader::kFailCatalog;
1361 117 return false;
1362 }
1363
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 594 if (catalog_mgr_->IsRevisionBlacklisted()) {
1365
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 37 boot_error_ = "repository revision blacklisted";
1366 37 boot_status_ = loader::kFailRevisionBlacklisted;
1367 37 return false;
1368 }
1369
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 1114 if (options_mgr_->GetValue("CVMFS_AUTO_UPDATE", &optarg)
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 1114 && !options_mgr_->IsOn(optarg)) {
1372 ✗ fixed_catalog_ = true;
1373 }
1374
1375
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 557 if (options_mgr_->GetValue("CVMFS_CATALOG_WATERMARK", &optarg)) {
1376 ✗ catalog_mgr_->SetCatalogWatermark(String2Uint64(optarg));
1377 } else {
1378 unsigned soft_limit;
1379 unsigned hard_limit;
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 557 GetLimitNoFile(&soft_limit, &hard_limit);
1381 557 catalog_mgr_->SetCatalogWatermark(soft_limit / 4);
1382 }
1383
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 557 if (catalog_mgr_->volatile_flag()) {
1385 ✗ LogCvmfs(kLogCvmfs, kLogDebug, "content of repository flagged as VOLATILE");
1386 }
1387
1388 557 return true;
1389 822 }
1390
1391
1392 1411 bool MountPoint::CreateDownloadManagers() {
1393 1411 string optarg;
1394
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 2822 download_mgr_ = new download::DownloadManager(
1395 kDefaultNumConnections,
1396
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 4233 perf::StatisticsTemplate("download", statistics_));
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 1411 download_mgr_->SetCredentialsAttachment(authz_attachment_);
1398
1399 // must be set before proxy and host chains are being initialized
1400 // error output is handled in SetShardingPolicy
1401
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 1411 if (options_mgr_->GetValue("CVMFS_PROXY_SHARDING_POLICY", &optarg)) {
1402 ✗ if (optarg.compare("EXTERNAL") == 0) {
1403 ✗ download_mgr_->SetShardingPolicy(download::kShardingPolicyExternal);
1404 ✗ download_mgr_->SetFqrn(fqrn());
1405 }
1406 }
1407
1408
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 2822 if (options_mgr_->GetValue("CVMFS_FAILOVER_INDEFINITELY", &optarg)
1409
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 2822 && options_mgr_->IsOn(optarg)) {
1410 ✗ download_mgr_->SetFailoverIndefinitely();
1411 }
1412
1413
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 1411 if (options_mgr_->GetValue("CVMFS_METALINK_URL", &optarg) && (optarg != "")) {
1414 ✗ download_mgr_->SetMetalinkChain(optarg);
1415 // host chain will be set later when the metalink server is contacted
1416 ✗ download_mgr_->SetHostChain("");
1417 // metalink requires redirects
1418 ✗ download_mgr_->EnableRedirects();
1419
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 1411 } else if (options_mgr_->GetValue("CVMFS_SERVER_URL", &optarg)) {
1420
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 859 download_mgr_->SetHostChain(optarg);
1421 }
1422
1423
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 2822 if (options_mgr_->GetValue("_CVMFS_DEVEL_IGNORE_SIGNATURE_FAILURES", &optarg)
1424
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 2822 && options_mgr_->IsOn(optarg)) {
1425 ✗ download_mgr_->EnableIgnoreSignatureFailures();
1426 ✗ LogCvmfs(kLogCvmfs, kLogDebug | kLogSyslogWarn,
1427 "Development option: Activate ignore signature failures during "
1428 "download. "
1429 "DO NOT USE IN PRODUCTION");
1430 }
1431
1432
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 1411 SetupDnsTuning(download_mgr_);
1433
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 1411 SetupHttpTuning();
1434
1435 1411 string forced_proxy_template;
1436
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 1411 if (options_mgr_->GetValue("CVMFS_PROXY_TEMPLATE", &optarg))
1437 ✗ forced_proxy_template = optarg;
1438
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 1411 download_mgr_->SetProxyTemplates(file_system_->uuid_cache()->uuid(),
1439 forced_proxy_template);
1440
1441 1411 string proxies;
1442
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 1411 if (options_mgr_->GetValue("CVMFS_HTTP_PROXY", &optarg))
1443
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 822 proxies = optarg;
1444
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 2822 proxies = download::ResolveProxyDescription(
1445 proxies,
1446
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 2822 file_system_->workspace() + "/proxies" + GetUniqFileSuffix(),
1447 1411 download_mgr_);
1448
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 1411 if (proxies == "") {
1449
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 589 boot_error_ = "failed to discover HTTP proxy servers";
1450 589 boot_status_ = loader::kFailWpad;
1451 589 return false;
1452 }
1453 822 string fallback_proxies;
1454
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 822 if (options_mgr_->GetValue("CVMFS_FALLBACK_PROXY", &optarg))
1455 ✗ fallback_proxies = optarg;
1456
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 822 download_mgr_->SetProxyChain(proxies, fallback_proxies,
1457 download::DownloadManager::kSetProxyBoth);
1458
1459
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 1644 const bool do_geosort = options_mgr_->GetValue("CVMFS_USE_GEOAPI", &optarg)
1460
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 1644 && options_mgr_->IsOn(optarg);
1461
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 822 if (do_geosort) {
1462 ✗ download_mgr_->ProbeGeo();
1463 }
1464
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 822 if (options_mgr_->GetValue("CVMFS_MAX_SERVERS", &optarg)) {
1465
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 148 const unsigned max_servers = String2Uint64(optarg);
1466 148 std::vector<std::string> host_chain;
1467
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 148 download_mgr_->GetHostInfo(&host_chain, NULL, NULL);
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 148 if (max_servers > 0 && max_servers < host_chain.size()) {
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 37 host_chain.resize(max_servers);
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 37 download_mgr_->SetHostChain(host_chain);
1471 }
1472 148 }
1473
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 1644 if (options_mgr_->GetValue("CVMFS_USE_SSL_SYSTEM_CA", &optarg)
1475
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 1644 && options_mgr_->IsOn(optarg)) {
1476 ✗ download_mgr_->UseSystemCertificatePath();
1477 }
1478
1479
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 1644 if (options_mgr_->GetValue("CVMFS_PROXY_SHARD", &optarg)
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 1644 && options_mgr_->IsOn(optarg)) {
1481 ✗ download_mgr_->ShardProxies();
1482 }
1483
1484 // configure http tracing header
1485
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 1644 if (options_mgr_->GetValue("CVMFS_HTTP_TRACING", &optarg)
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 1644 && options_mgr_->IsOn(optarg)) {
1487 ✗ download_mgr_->EnableHTTPTracing();
1488 ✗ if (options_mgr_->GetValue("CVMFS_HTTP_TRACING_HEADERS", &optarg)) {
1489 ✗ if (optarg.size() > 1000) {
1490 ✗ LogCvmfs(kLogCvmfs, kLogSyslogErr | kLogDebug,
1491 "CVMFS_HTTP_TRACING_HEADERS too large ( max 1000 chars, given "
1492 "%ld )",
1493 optarg.size());
1494 } else {
1495 ✗ std::vector<std::string> tokens = SplitString(optarg, '|');
1496 ✗ const sanitizer::AlphaNumSanitizer sanitizer;
1497
1498 ✗ for (unsigned int i = 0; i < tokens.size(); i++) {
1499 ✗ const std::string token = Trim(tokens[i]);
1500
1501 ✗ std::vector<std::string> key_val = SplitString(token, ':');
1502
1503 ✗ if (key_val.size() != 2) {
1504 ✗ LogCvmfs(kLogCvmfs, kLogSyslogErr | kLogDebug,
1505 "Http tracing header: Skipping current token part of "
1506 "CVMFS_HTTP_TRACING_HEADERS! Invalid "
1507 "<key:value> pair. Token: %s",
1508 token.c_str());
1509 ✗ continue;
1510 }
1511
1512 ✗ const std::string prefix = "X-CVMFS-";
1513 ✗ const std::string key = Trim(key_val[0]);
1514
1515 ✗ if (!sanitizer.IsValid(key)) {
1516 ✗ LogCvmfs(kLogCvmfs, kLogSyslogErr | kLogDebug,
1517 "Http tracing header: Skipping current token part of "
1518 "CVMFS_HTTP_TRACING_HEADERS! Invalid key. Only "
1519 "alphanumeric keys "
1520 "are allowed (a-z, A-Z, 0-9). Token: %s",
1521 token.c_str());
1522 ✗ continue;
1523 }
1524
1525 ✗ const std::string final_token = prefix + key + ": "
1526 ✗ + Trim(key_val[1]);
1527
1528 ✗ download_mgr_->AddHTTPTracingHeader(final_token);
1529 }
1530 }
1531 }
1532 }
1533
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 822 return SetupExternalDownloadMgr(do_geosort);
1535 1411 }
1536
1537 822 bool MountPoint::CreateResolvConfWatcher() {
1538 822 std::string roaming_value;
1539
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 822 options_mgr_->GetValue("CVMFS_DNS_ROAMING", &roaming_value);
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 1644 if (options_mgr_->IsDefined("CVMFS_DNS_ROAMING")
1541
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 1644 && options_mgr_->IsOn(roaming_value)) {
1542 ✗ LogCvmfs(kLogCvmfs, kLogDebug,
1543 "DNS roaming is enabled for this repository.");
1544 // Create a file watcher to update the DNS settings of the download
1545 // managers when there are changes to /etc/resolv.conf
1546 ✗ resolv_conf_watcher_ = file_watcher::FileWatcher::Create();
1547
1548 ✗ if (resolv_conf_watcher_) {
1549 ResolvConfEventHandler *handler = new ResolvConfEventHandler(
1550 ✗ download_mgr_, external_download_mgr_);
1551 ✗ resolv_conf_watcher_->RegisterHandler("/etc/resolv.conf", handler);
1552 }
1553 } else {
1554
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 822 LogCvmfs(kLogCvmfs, kLogDebug,
1555 "DNS roaming is disabled for this repository.");
1556 }
1557 822 return true;
1558 822 }
1559
1560 822 void MountPoint::CreateFetchers() {
1561 822 fetcher_ = new cvmfs::Fetcher(file_system_->cache_mgr(),
1562 download_mgr_,
1563 backoff_throttle_,
1564
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 822 perf::StatisticsTemplate("fetch", statistics_));
1565
1566 1644 external_fetcher_ = new cvmfs::Fetcher(
1567 822 file_system_->cache_mgr(),
1568 external_download_mgr_,
1569 backoff_throttle_,
1570
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 822 perf::StatisticsTemplate("fetch-external", statistics_));
1571 822 }
1572
1573
1574 /**
1575 * Sets up partial replica handling for the primary Stratum-1. This is opt-in:
1576 * unless CVMFS_PARTIAL_REPLICA_MODE is set, the function returns immediately so
1577 * that regular (full-replica) mounts incur no extra requests. When opted in:
1578 * - Probes for the .cvmfs_partial_replication file on the primary server.
1579 * - Parses the inclusion spec and stores it in partial_inclusion_spec_.
1580 * - Honours CVMFS_PARTIAL_REPLICA_MODE ("failover" [default] or "fail").
1581 * - In failover mode, creates a full_replica_download_mgr_ from
1582 * CVMFS_FULL_STRATUM1_URL and wires it as the fetcher's fallback.
1583 */
1584 822 void MountPoint::SetupPartialReplica() {
1585 // Partial replica handling is opt-in on the client: only probe for and act
1586 // on a partial Stratum-1 when CVMFS_PARTIAL_REPLICA_MODE is explicitly set.
1587 // Auto-detection would buy nothing (failover still needs
1588 // CVMFS_FULL_STRATUM1_URL, fail mode is a client choice) while taxing every
1589 // regular mount with an extra request.
1590 822 string mode;
1591
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 822 if (!options_mgr_->GetValue("CVMFS_PARTIAL_REPLICA_MODE", &mode)) {
1592 822 return;
1593 }
1594
1595 // Validate the mode before doing any network I/O, so that an off/false/empty
1596 // (or otherwise invalid) value never adds a request to a normal mount. Only
1597 // "fail" and "failover" enable partial replica handling.
1598 ✗ const string mode_norm = ToUpper(Trim(mode));
1599 bool fail_mode;
1600 ✗ if (mode_norm == "FAIL") {
1601 ✗ fail_mode = true;
1602 ✗ } else if (mode_norm == "FAILOVER") {
1603 ✗ fail_mode = false;
1604 } else {
1605 // Disabled (empty/off/false) is silent; anything else is a config error.
1606 ✗ if (!mode_norm.empty() && !options_mgr_->IsOff(mode_norm)) {
1607 ✗ LogCvmfs(kLogCvmfs, kLogSyslogWarn | kLogDebug,
1608 "ignoring invalid CVMFS_PARTIAL_REPLICA_MODE='%s' "
1609 "(expected 'fail' or 'failover')",
1610 mode.c_str());
1611 }
1612 ✗ return;
1613 }
1614
1615 // Get primary server URL from the host chain
1616 ✗ vector<string> host_chain;
1617 ✗ download_mgr_->GetHostInfo(&host_chain, NULL, NULL);
1618 ✗ if (host_chain.empty()) {
1619 ✗ return;
1620 }
1621 ✗ const string primary_url = host_chain[0];
1622
1623 // Probe for the partial replication spec file
1624 ✗ const string spec_url = primary_url + "/.cvmfs_partial_replication";
1625 ✗ cvmfs::MemSink spec_memsink;
1626 ✗ download::JobInfo probe_job(&spec_url, false, false, NULL, &spec_memsink);
1627 ✗ const download::Failures probe_result = download_mgr_->Fetch(&probe_job);
1628
1629 ✗ if (probe_result != download::kFailOk) {
1630 // Not a partial replica (or not reachable — ignore silently)
1631 ✗ LogCvmfs(kLogCvmfs, kLogDebug,
1632 "no .cvmfs_partial_replication found at %s (result %d)",
1633 primary_url.c_str(), probe_result);
1634 ✗ return;
1635 }
1636
1637 // Parse the spec
1638 ✗ const string spec_content(reinterpret_cast<char *>(spec_memsink.data()),
1639 ✗ spec_memsink.pos());
1640 ✗ partial_inclusion_spec_ = new catalog::InclusionSpec();
1641 ✗ if (!partial_inclusion_spec_->Parse(spec_content)) {
1642 ✗ LogCvmfs(kLogCvmfs, kLogSyslogErr | kLogDebug,
1643 "failed to parse .cvmfs_partial_replication from %s",
1644 primary_url.c_str());
1645 ✗ delete partial_inclusion_spec_;
1646 ✗ partial_inclusion_spec_ = NULL;
1647 ✗ return;
1648 }
1649
1650 ✗ LogCvmfs(kLogCvmfs, kLogSyslog | kLogDebug,
1651 "connected to partial Stratum-1 at %s (spec version %d)",
1652 ✗ primary_url.c_str(), partial_inclusion_spec_->version());
1653
1654 // Apply the mode validated above
1655 ✗ string optarg;
1656 ✗ partial_replica_fail_mode_ = fail_mode;
1657 ✗ if (fail_mode) {
1658 ✗ LogCvmfs(kLogCvmfs, kLogDebug,
1659 "partial replica mode: fail (EIO for missing objects)");
1660 ✗ return; // No full replica manager needed in fail mode
1661 }
1662
1663 // Create the full replica download manager for failover
1664 ✗ if (!options_mgr_->GetValue("CVMFS_FULL_STRATUM1_URL", &optarg)
1665 ✗ || optarg.empty()) {
1666 ✗ LogCvmfs(kLogCvmfs, kLogSyslogWarn | kLogDebug,
1667 "partial replica mode is failover but CVMFS_FULL_STRATUM1_URL "
1668 "is not set; failover disabled");
1669 ✗ return;
1670 }
1671
1672 ✗ LogCvmfs(kLogCvmfs, kLogDebug, "partial replica mode: failover to %s",
1673 optarg.c_str());
1674
1675 // Clone the primary download manager so proxy, DNS, timeout, certificate and
1676 // sharding settings carry over unchanged; only the host chain is repointed at
1677 // the full Stratum-1. This avoids the configuration drift of re-reading a
1678 // hand-picked subset of options.
1679 ✗ full_replica_download_mgr_ = download_mgr_->Clone(
1680 ✗ perf::StatisticsTemplate("download-full-replica", statistics_),
1681 "download-full-replica");
1682 ✗ full_replica_download_mgr_->SetHostChain(optarg);
1683 // Not spawned here: like download_mgr_ and external_download_mgr_, the worker
1684 // thread is started later by the application's Init (cvmfs.cc, after the FUSE
1685 // fork; threads do not survive fork()). libcvmfs leaves it synchronous.
1686
1687 // Wire the full replica into the primary fetcher
1688 ✗ fetcher_->SetFullReplicaDownloadManager(full_replica_download_mgr_);
1689
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 822 }
1690
1691
1692 1448 bool MountPoint::CreateSignatureManager() {
1693 1448 string optarg;
1694
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 1448 signature_mgr_ = new signature::SignatureManager();
1695
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 1448 signature_mgr_->Init();
1696
1697 1448 string public_keys;
1698
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 1448 if (options_mgr_->GetValue("CVMFS_PUBLIC_KEY", &optarg)) {
1699
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 890 public_keys = optarg;
1700
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 558 } else if (options_mgr_->GetValue("CVMFS_KEYS_DIR", &optarg)) {
1701 // Collect .pub files from CVMFS_KEYS_DIR
1702 ✗ public_keys = JoinStrings(FindFilesBySuffix(optarg, ".pub"), ":");
1703 } else {
1704
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 1116 public_keys = JoinStrings(FindFilesBySuffix("/etc/cvmfs/keys", ".pub"),
1705 558 ":");
1706 }
1707
1708
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 1448 if (!signature_mgr_->LoadPublicRsaKeys(public_keys)) {
1709
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 37 boot_error_ = "failed to load public key(s)";
1710 37 boot_status_ = loader::kFailSignature;
1711 37 return false;
1712 }
1713
1714
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 1411 if (public_keys.size() > 0) {
1715
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 853 LogCvmfs(kLogCvmfs, kLogDebug, "CernVM-FS: using public key(s) %s",
1716 public_keys.c_str());
1717 } else {
1718
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 558 LogCvmfs(kLogCvmfs, kLogDebug | kLogSyslogWarn, "no public key loaded");
1719 }
1720
1721 1411 return true;
1722 1448 }
1723
1724
1725 1448 void MountPoint::CreateStatistics() {
1726 1448 statistics_ = file_system_->statistics()->Fork();
1727
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 1448 if (file_system_->type() != FileSystem::kFsFuse)
1728 25 return;
1729
1730 // TODO(jblomer): this should be registered by the tracker
1731
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 1423 statistics_->Register("inode_tracker.n_insert",
1732 "overall number of accessed inodes");
1733
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 1423 statistics_->Register("inode_tracker.n_remove",
1734 "overall number of evicted inodes");
1735
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 1423 statistics_->Register("inode_tracker.no_reference",
1736 "currently active inodes");
1737
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 1423 statistics_->Register("inode_tracker.n_hit_inode",
1738 "overall number of inode lookups");
1739
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 1423 statistics_->Register("inode_tracker.n_hit_path",
1740 "overall number of successful path lookups");
1741
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 1423 statistics_->Register("inode_tracker.n_miss_path",
1742 "overall number of unsuccessful path lookups");
1743
1744
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 1423 statistics_->Register("dentry_tracker.n_insert",
1745 "overall number of added negative cache entries");
1746
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 1423 statistics_->Register("dentry_tracker.n_remove",
1747 "overall number of evicted negative cache entries");
1748
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 1423 statistics_->Register("dentry_tracker.n_prune",
1749 "overall number of prune calls");
1750
1751
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 1423 statistics_->Register("page_cache_tracker.n_insert",
1752 "overall number of added page cache entries");
1753
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 1423 statistics_->Register("page_cache_tracker.n_remove",
1754 "overall number of evicted page cache entries");
1755
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 1423 statistics_->Register("page_cache_tracker.n_open_direct",
1756 "overall number of direct I/O open calls");
1757
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 1423 statistics_->Register(
1758 "page_cache_tracker.n_open_flush",
1759 "overall number of open calls where the file's page cache gets flushed");
1760
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 1423 statistics_->Register(
1761 "page_cache_tracker.n_open_cached",
1762 "overall number of open calls where the file's page cache is reused");
1763 }
1764
1765
1766 557 void MountPoint::CreateTables() {
1767
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 557 if (file_system_->type() != FileSystem::kFsFuse) {
1768 // Libcvmfs simplified tables
1769
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 19 md5path_cache_ = new lru::Md5PathCache(kLibPathCacheSize, statistics_);
1770
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 19 simple_chunk_tables_ = new SimpleChunkTables();
1771 19 return;
1772 }
1773
1774
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 538 chunk_tables_ = new ChunkTables();
1775
1776 538 string optarg;
1777 538 uint64_t mem_cache_size = kDefaultMemcacheSize;
1778
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 538 if (options_mgr_->GetValue("CVMFS_MEMCACHE_SIZE", &optarg))
1779 ✗ mem_cache_size = String2Uint64(optarg) * 1024 * 1024;
1780
1781 const double memcache_unit_size = (static_cast<double>(kInodeCacheFactor)
1782
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 538 * lru::Md5PathCache::GetEntrySize())
1783
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 538 + lru::InodeCache::GetEntrySize()
1784
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 538 + lru::PathCache::GetEntrySize();
1785 538 const unsigned memcache_num_units = mem_cache_size
1786 538 / static_cast<unsigned>(
1787 memcache_unit_size);
1788 // Number of cache entries must be a multiple of 64
1789 538 const unsigned mask_64 = ~((1 << 6) - 1);
1790
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 538 inode_cache_ = new lru::InodeCache(memcache_num_units & mask_64, statistics_);
1791
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 538 path_cache_ = new lru::PathCache(memcache_num_units & mask_64, statistics_);
1792 1076 md5path_cache_ = new lru::Md5PathCache((memcache_num_units * 7) & mask_64,
1793
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 538 statistics_);
1794
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 538 inode_tracker_ = new glue::InodeTracker();
1796
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 538 dentry_tracker_ = new glue::DentryTracker();
1797
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 538 page_cache_tracker_ = new glue::PageCacheTracker();
1798
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 538 if (file_system_->IsNfsSource())
1799 ✗ page_cache_tracker_->Disable();
1800 538 }
1801
1802 /**
1803 * Will create a tracer for the current mount point
1804 * Tracefile path, Trace buffer size and trace buffer flush threshold
1805 * can be configured by the options: CVMFS_TRACEFILE,
1806 * CVMFS_TRACEBUFFER, CVMFS_TRACEBUFFER_THRESHOLD(respectively)
1807 * VMFS_TRACEBUFFER and CVMFS_TRACEBUFFER_THRESHOLD will silently fallback
1808 * to default values if configuration values don't exist or are invalid
1809 */
1810 557 bool MountPoint::CreateTracer() {
1811 557 string optarg;
1812
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 557 tracer_ = new Tracer();
1813
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 557 if (options_mgr_->GetValue("CVMFS_TRACEFILE", &optarg)) {
1814 ✗ if (file_system_->type() != FileSystem::kFsFuse) {
1815 ✗ boot_error_ = "tracer is only supported in the fuse module";
1816 ✗ boot_status_ = loader::kFailOptions;
1817 ✗ return false;
1818 }
1819 ✗ const string tracebuffer_file = optarg;
1820 ✗ uint64_t tracebuffer_size = kTracerBufferSize;
1821 ✗ uint64_t tracebuffer_threshold = kTracerFlushThreshold;
1822
1823 ✗ if (options_mgr_->GetValue("CVMFS_TRACEBUFFER", &optarg)) {
1824 ✗ tracebuffer_size = String2Uint64(optarg);
1825 }
1826 ✗ if (options_mgr_->GetValue("CVMFS_TRACEBUFFER_THRESHOLD", &optarg)) {
1827 ✗ tracebuffer_threshold = String2Uint64(optarg);
1828 }
1829 ✗ assert(tracebuffer_size <= INT_MAX && tracebuffer_threshold <= INT_MAX);
1830 ✗ LogCvmfs(kLogCvmfs, kLogDebug,
1831 "Initialising tracer with buffer size %" PRIu64
1832 " and threshold %" PRIu64,
1833 tracebuffer_size, tracebuffer_threshold);
1834 ✗ tracer_->Activate(tracebuffer_size, tracebuffer_threshold,
1835 tracebuffer_file);
1836 }
1837 557 return true;
1838 557 }
1839
1840
1841 785 bool MountPoint::DetermineRootHash(shash::Any *root_hash) {
1842 785 string optarg;
1843
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 785 if (options_mgr_->GetValue("CVMFS_ROOT_HASH", &optarg)) {
1844
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 277 *root_hash = MkFromHexPtr(shash::HexPtr(optarg), shash::kSuffixCatalog);
1845 277 return true;
1846 }
1847
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 1016 if (!options_mgr_->IsDefined("CVMFS_REPOSITORY_TAG")
1849
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 1016 && !options_mgr_->IsDefined("CVMFS_REPOSITORY_DATE")) {
1850 360 root_hash->SetNull();
1851 360 return true;
1852 }
1853
1854 148 string history_path;
1855
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 148 if (!FetchHistory(&history_path))
1856 ✗ return false;
1857
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 148 const UnlinkGuard history_file(history_path);
1858 const std::unique_ptr<history::History> tag_db(
1859
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 148 history::SqliteHistory::Open(history_path));
1860
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 148 if (tag_db.get() == nullptr) {
1861 ✗ LogCvmfs(kLogCvmfs, kLogDebug | kLogSyslog,
1862 "failed to open history database (%s)", history_path.c_str());
1863 ✗ boot_error_ = "failed to open history database";
1864 ✗ boot_status_ = loader::kFailHistory;
1865 ✗ return false;
1866 }
1867
1868
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 148 history::History::Tag tag;
1869 bool retval;
1870
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 148 if (!options_mgr_->GetValue("CVMFS_REPOSITORY_TAG", &repository_tag_)) {
1871 74 string repository_date;
1872 // options_mgr_->IsDefined("CVMFS_REPOSITORY_DATE") must be true
1873
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 74 options_mgr_->GetValue("CVMFS_REPOSITORY_DATE", &repository_date);
1874
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 74 const time_t repository_utctime = IsoTimestamp2UtcTime(repository_date);
1875
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 74 if (repository_utctime == 0) {
1876 boot_error_ = "invalid timestamp in CVMFS_REPOSITORY_DATE: "
1877 ✗ + repository_date + ". Use YYYY-MM-DDTHH:MM:SSZ";
1878 ✗ boot_status_ = loader::kFailHistory;
1879 ✗ return false;
1880 }
1881
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 74 retval = tag_db->GetByDate(repository_utctime, &tag);
1882
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 74 if (!retval) {
1883 boot_error_ = "no repository state as early as utc timestamp "
1884
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 37 + StringifyTime(repository_utctime, true);
1885 37 boot_status_ = loader::kFailHistory;
1886 37 return false;
1887 }
1888
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 74 LogCvmfs(kLogCvmfs, kLogDebug | kLogSyslog,
1889 "time stamp %s UTC resolved to tag '%s'",
1890
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 74 StringifyTime(repository_utctime, true).c_str(), tag.name.c_str());
1891
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 37 repository_tag_ = tag.name;
1892
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 74 } else {
1893
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 74 retval = tag_db->GetByName(repository_tag_, &tag);
1894
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 74 if (!retval) {
1895
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 37 boot_error_ = "no such tag: " + repository_tag_;
1896 37 boot_status_ = loader::kFailHistory;
1897 37 return false;
1898 }
1899 }
1900
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 74 LogCvmfs(kLogCvmfs, kLogDebug, "mounting tag %s", tag.name.c_str());
1901
1902 74 *root_hash = tag.root_hash;
1903 74 return true;
1904 785 }
1905
1906
1907 148 bool MountPoint::FetchHistory(std::string *history_path) {
1908 manifest::Failures retval_mf;
1909 148 manifest::ManifestEnsemble ensemble;
1910
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 148 retval_mf = manifest::Fetch("", fqrn_, 0, NULL, signature_mgr_, download_mgr_,
1911 &ensemble);
1912
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 148 if (retval_mf != manifest::kFailOk) {
1913 ✗ boot_error_ = "Failed to fetch manifest";
1914 ✗ boot_status_ = loader::kFailHistory;
1915 ✗ return false;
1916 }
1917 148 const shash::Any history_hash = ensemble.manifest->history();
1918
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 148 if (history_hash.IsNull()) {
1919 ✗ boot_error_ = "No history";
1920 ✗ boot_status_ = loader::kFailHistory;
1921 ✗ return false;
1922 }
1923
1924 148 CacheManager::Label label;
1925 148 label.flags = CacheManager::kLabelHistory;
1926
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 148 label.path = fqrn_;
1927
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 444 const int fd = fetcher_->Fetch(
1928
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 296 CacheManager::LabeledObject(history_hash, label));
1929
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 148 if (fd < 0) {
1930 ✗ boot_error_ = "failed to download history: " + StringifyInt(-fd);
1931 ✗ boot_status_ = loader::kFailHistory;
1932 ✗ return false;
1933 }
1934 // We have the custom sqlite vfs driver installed
1935
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 148 *history_path = "@" + StringifyInt(fd);
1936 148 return true;
1937 148 }
1938
1939
1940 ✗ unsigned MountPoint::GetEffectiveTtlSec() {
1941 unsigned max_ttl;
1942 {
1943 ✗ const MutexLockGuard lock_guard(lock_max_ttl_);
1944 ✗ max_ttl = max_ttl_sec_;
1945 }
1946 ✗ const unsigned catalog_ttl_sec = catalog_mgr_->GetTTL();
1947
1948 ✗ return max_ttl ? std::min(max_ttl, catalog_ttl_sec) : catalog_ttl_sec;
1949 }
1950
1951
1952 ✗ unsigned MountPoint::GetMaxTtlMn() {
1953 ✗ const MutexLockGuard lock_guard(lock_max_ttl_);
1954 ✗ return max_ttl_sec_ / 60;
1955 }
1956
1957
1958 /**
1959 * Files in the workspace from different file systems / mountpoints need to
1960 * have different names. Used, for example, for caching proxy settings.
1961 */
1962 1411 string MountPoint::GetUniqFileSuffix() {
1963
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 2822 return "." + file_system_->name() + "-" + fqrn_;
1964 }
1965
1966
1967 1448 MountPoint::MountPoint(const string &fqrn,
1968 FileSystem *file_system,
1969 1448 OptionsManager *options_mgr)
1970
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 1448 : fqrn_(fqrn)
1971
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 1448 , uuid_(cvmfs::Uuid::Create(""))
1972 1448 , file_system_(file_system)
1973 1448 , options_mgr_(options_mgr)
1974 1448 , statistics_(NULL)
1975 1448 , telemetry_aggr_(NULL)
1976 1448 , authz_fetcher_(NULL)
1977 1448 , authz_session_mgr_(NULL)
1978 1448 , authz_attachment_(NULL)
1979 1448 , backoff_throttle_(NULL)
1980 1448 , signature_mgr_(NULL)
1981 1448 , download_mgr_(NULL)
1982 1448 , external_download_mgr_(NULL)
1983 1448 , full_replica_download_mgr_(NULL)
1984 1448 , fetcher_(NULL)
1985 1448 , external_fetcher_(NULL)
1986 1448 , partial_inclusion_spec_(NULL)
1987 1448 , partial_replica_fail_mode_(false)
1988 1448 , inode_annotation_(NULL)
1989 1448 , catalog_mgr_(NULL)
1990 1448 , bundle_mgr_(NULL)
1991 1448 , chunk_tables_(NULL)
1992 1448 , simple_chunk_tables_(NULL)
1993 1448 , inode_cache_(NULL)
1994 1448 , path_cache_(NULL)
1995 1448 , md5path_cache_(NULL)
1996 1448 , tracer_(NULL)
1997 1448 , inode_tracker_(NULL)
1998 1448 , dentry_tracker_(NULL)
1999 1448 , page_cache_tracker_(NULL)
2000 1448 , statfs_cache_(NULL)
2001 1448 , resolv_conf_watcher_(NULL)
2002 1448 , max_ttl_sec_(kDefaultMaxTtlSec)
2003 1448 , kcache_timeout_sec_(static_cast<double>(kDefaultKCacheTtlSec))
2004 1448 , fixed_catalog_(false)
2005 1448 , enforce_acls_(false)
2006 1448 , cache_symlinks_(false)
2007 1448 , fuse_expire_entry_(false)
2008 1448 , has_membership_req_(false)
2009
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 1448 , talk_socket_path_(std::string("./cvmfs_io.") + fqrn)
2010 1448 , talk_socket_uid_(0)
2011 2896 , talk_socket_gid_(0) {
2012 1448 const int retval = pthread_mutex_init(&lock_max_ttl_, NULL);
2013
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 1448 assert(retval == 0);
2014 1448 }
2015
2016
2017 1448 MountPoint::~MountPoint() {
2018 1448 pthread_mutex_destroy(&lock_max_ttl_);
2019
2020 // The bundle prefetcher owns background threads that use the catalog
2021 // manager, the fetchers and the cache manager; join them before any of
2022 // those are destroyed.
2023
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 1448 delete bundle_mgr_;
2024
2025
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 1448 delete page_cache_tracker_;
2026
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 1448 delete dentry_tracker_;
2027
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 1448 delete inode_tracker_;
2028
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 1448 delete tracer_;
2029
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 1448 delete md5path_cache_;
2030
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 1448 delete path_cache_;
2031
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 1448 delete inode_cache_;
2032
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 1448 delete simple_chunk_tables_;
2033
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 1448 delete chunk_tables_;
2034
2035
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 1448 delete catalog_mgr_;
2036
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 1448 delete inode_annotation_;
2037
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 1448 delete external_fetcher_;
2038
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 1448 delete fetcher_;
2039
2040
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 1448 delete external_download_mgr_;
2041
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 1448 delete full_replica_download_mgr_;
2042
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 1448 delete download_mgr_;
2043
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 1448 delete partial_inclusion_spec_;
2044
2045
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 1448 if (signature_mgr_ != NULL) {
2046 1448 signature_mgr_->Fini();
2047
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 1448 delete signature_mgr_;
2048 }
2049
2050
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 1448 if (resolv_conf_watcher_ != NULL) {
2051 ✗ resolv_conf_watcher_->Stop();
2052 ✗ delete resolv_conf_watcher_;
2053 }
2054
2055
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 1448 delete backoff_throttle_;
2056
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 1448 delete authz_attachment_;
2057
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 1448 delete authz_session_mgr_;
2058
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 1448 delete authz_fetcher_;
2059
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 1448 delete telemetry_aggr_;
2060
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 1448 delete statistics_;
2061
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 1448 delete uuid_;
2062
2063
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 1448 delete statfs_cache_;
2064 1448 }
2065
2066
2067 559 void MountPoint::ReEvaluateAuthz() {
2068
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 559 const string old_membership_req = membership_req_;
2069
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 559 has_membership_req_ = catalog_mgr_->GetVOMSAuthz(&membership_req_);
2070
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 559 if (old_membership_req != membership_req_) {
2071 ✗ authz_session_mgr_->ClearSessionCache();
2072 ✗ authz_attachment_->set_membership(membership_req_);
2073 }
2074 559 }
2075
2076
2077 ✗ void MountPoint::SetMaxTtlMn(unsigned value_minutes) {
2078 ✗ const MutexLockGuard lock_guard(lock_max_ttl_);
2079 ✗ max_ttl_sec_ = value_minutes * 60;
2080 }
2081
2082 ✗ void MountPoint::SetMaxTtlSec(unsigned value_secs) {
2083 ✗ const MutexLockGuard lock_guard(lock_max_ttl_);
2084 ✗ max_ttl_sec_ = value_secs;
2085 }
2086
2087 557 bool MountPoint::SetupBehavior() {
2088 557 string optarg;
2089
2090
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 557 if (options_mgr_->GetValue("CVMFS_MAX_TTL", &optarg))
2091 ✗ SetMaxTtlMn(String2Uint64(optarg));
2092
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 557 if (options_mgr_->GetValue("CVMFS_MAX_TTL_SECS", &optarg))
2093 ✗ SetMaxTtlSec(String2Uint64(optarg));
2094
2095
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 557 if (options_mgr_->GetValue("CVMFS_KCACHE_TIMEOUT", &optarg)) {
2096 // Can be negative and should then be interpreted as 0.0
2097 ✗ kcache_timeout_sec_ = std::max(0.0,
2098 ✗ static_cast<double>(String2Int64(optarg)));
2099 }
2100 557 LogCvmfs(kLogCvmfs, kLogDebug, "kernel caches expire after %d seconds",
2101
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 557 static_cast<int>(kcache_timeout_sec_));
2102
2103 557 uint64_t statfs_time_cache_valid = 0;
2104
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 557 if (options_mgr_->GetValue("CVMFS_STATFS_CACHE_TIMEOUT", &optarg)) {
2105 ✗ statfs_time_cache_valid = static_cast<uint64_t>(String2Uint64(optarg));
2106 }
2107
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 557 LogCvmfs(kLogCvmfs, kLogDebug, "statfs cache expires after %d seconds",
2108 static_cast<int>(statfs_time_cache_valid));
2109
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 557 statfs_cache_ = new StatfsCache(statfs_time_cache_valid);
2110
2111 MagicXattrManager::EVisibility
2112 557 xattr_visibility = MagicXattrManager::kVisibilityRootOnly;
2113
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 557 if (options_mgr_->GetValue("CVMFS_HIDE_MAGIC_XATTRS", &optarg)) {
2114 ✗ if (options_mgr_->IsOn(optarg))
2115 ✗ xattr_visibility = MagicXattrManager::kVisibilityNever;
2116 ✗ else if (options_mgr_->IsOff(optarg))
2117 ✗ xattr_visibility = MagicXattrManager::kVisibilityAlways;
2118 }
2119
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 557 if (options_mgr_->GetValue("CVMFS_MAGIC_XATTRS_VISIBILITY", &optarg)) {
2120 ✗ if (ToUpper(optarg) == "ROOTONLY") {
2121 ✗ xattr_visibility = MagicXattrManager::kVisibilityRootOnly;
2122 ✗ } else if (ToUpper(optarg) == "NEVER") {
2123 ✗ xattr_visibility = MagicXattrManager::kVisibilityNever;
2124 ✗ } else if (ToUpper(optarg) == "ALWAYS") {
2125 ✗ xattr_visibility = MagicXattrManager::kVisibilityAlways;
2126 } else {
2127 ✗ LogCvmfs(kLogCvmfs, kLogSyslogWarn | kLogDebug,
2128 "unsupported setting: CVMFS_MAGIC_XATTRS_VISIBILITY=%s",
2129 optarg.c_str());
2130 }
2131 }
2132
2133 557 std::set<gid_t> protected_xattr_gids;
2134
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 557 if (options_mgr_->GetValue("CVMFS_XATTR_PRIVILEGED_GIDS", &optarg)) {
2135 ✗ std::vector<string> tmp = SplitString(optarg, ',');
2136
2137 ✗ for (size_t i = 0; i < tmp.size(); i++) {
2138 ✗ const std::string trimmed = Trim(tmp[i]);
2139 ✗ LogCvmfs(kLogCvmfs, kLogDebug, "Privileged gid for xattr added: %s",
2140 trimmed.c_str());
2141 ✗ protected_xattr_gids.insert(static_cast<gid_t>(String2Uint64(trimmed)));
2142 }
2143 }
2144 557 std::set<std::string> protected_xattrs;
2145
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 557 if (options_mgr_->GetValue("CVMFS_XATTR_PROTECTED_XATTRS", &optarg)) {
2146 ✗ std::vector<string> tmp = SplitString(optarg, ',');
2147
2148 ✗ for (size_t i = 0; i < tmp.size(); i++) {
2149 ✗ const std::string trimmed = Trim(tmp[i]);
2150 ✗ LogCvmfs(kLogCvmfs, kLogDebug, "Protected xattr added: %s",
2151 trimmed.c_str());
2152 ✗ protected_xattrs.insert(trimmed);
2153 }
2154
2155 // root has always access to xattr
2156 ✗ if (protected_xattr_gids.count(0) < 1) {
2157 ✗ protected_xattr_gids.insert(0);
2158 ✗ LogCvmfs(kLogCvmfs, kLogDebug,
2159 "Automatically added root to have access to protected xattrs.");
2160 }
2161 }
2162 557 magic_xattr_mgr_ = new MagicXattrManager(
2163
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 557 this, xattr_visibility, protected_xattrs, protected_xattr_gids);
2164
2165
2166
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 1114 if (options_mgr_->GetValue("CVMFS_ENFORCE_ACLS", &optarg)
2167
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 1114 && options_mgr_->IsOn(optarg)) {
2168 ✗ enforce_acls_ = true;
2169 }
2170
2171
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 1114 if (options_mgr_->GetValue("CVMFS_CACHE_SYMLINKS", &optarg)
2172
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 1114 && options_mgr_->IsOn(optarg)) {
2173 ✗ cache_symlinks_ = true;
2174 }
2175
2176
2177
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 557 if (options_mgr_->GetValue("CVMFS_TALK_SOCKET", &optarg)) {
2178 ✗ talk_socket_path_ = optarg;
2179 }
2180
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 557 if (options_mgr_->GetValue("CVMFS_TALK_OWNER", &optarg)) {
2181 ✗ const bool retval = GetUidOf(optarg, &talk_socket_uid_, &talk_socket_gid_);
2182 ✗ if (!retval) {
2183 ✗ boot_error_ = "unknown owner of cvmfs_talk socket: " + optarg;
2184 ✗ boot_status_ = loader::kFailOptions;
2185 ✗ return false;
2186 }
2187 }
2188
2189 // this can be later be changed to switch through different
2190 // telemetryAggregators
2191
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 1114 if (options_mgr_->GetValue("CVMFS_TELEMETRY_SEND", &optarg)
2192
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 1114 && options_mgr_->IsOn(optarg)) {
2193 ✗ int telemetry_send_rate_sec = kDefaultTelemetrySendRateSec;
2194 ✗ if (options_mgr_->GetValue("CVMFS_TELEMETRY_RATE", &optarg)) {
2195 ✗ telemetry_send_rate_sec = static_cast<int>(String2Uint64(optarg));
2196
2197 // minimum send rate: 5sec
2198 ✗ if (telemetry_send_rate_sec < kMinimumTelemetrySendRateSec) {
2199 ✗ telemetry_send_rate_sec = kMinimumTelemetrySendRateSec;
2200 }
2201
2202 ✗ telemetry_aggr_ = perf::TelemetryAggregator::Create(
2203 statistics_,
2204 telemetry_send_rate_sec,
2205 options_mgr_,
2206 this,
2207 ✗ fqrn_,
2208 perf::kTelemetryInflux);
2209 ✗ LogCvmfs(kLogTelemetry, kLogSyslog | kLogDebug,
2210 "Enable telemetry to report every %d seconds",
2211 telemetry_send_rate_sec);
2212 }
2213 }
2214
2215 557 return true;
2216 557 }
2217
2218
2219 /**
2220 * Called twice once for the regular download manager and once for the external
2221 * download manager.
2222 */
2223 1411 void MountPoint::SetupDnsTuning(download::DownloadManager *manager) {
2224 1411 string optarg;
2225 1411 unsigned dns_timeout_ms = download::DownloadManager::kDnsDefaultTimeoutMs;
2226 1411 unsigned dns_retries = download::DownloadManager::kDnsDefaultRetries;
2227
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 1411 if (options_mgr_->GetValue("CVMFS_DNS_TIMEOUT", &optarg))
2228 ✗ dns_timeout_ms = String2Uint64(optarg) * 1000;
2229
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 1411 if (options_mgr_->GetValue("CVMFS_DNS_RETRIES", &optarg))
2230 ✗ dns_retries = String2Uint64(optarg);
2231
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 1411 manager->SetDnsParameters(dns_retries, dns_timeout_ms);
2232
2233 // Rest has to be after SetDnsParameters because SetDnsParameters might
2234 // construct a new resolver object
2235
2236 1411 unsigned dns_min_ttl = dns::Resolver::kDefaultMinTtl;
2237 1411 unsigned dns_max_ttl = dns::Resolver::kDefaultMaxTtl;
2238
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 1411 if (options_mgr_->GetValue("CVMFS_DNS_MIN_TTL", &optarg))
2239 ✗ dns_min_ttl = String2Uint64(optarg);
2240
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 1411 if (options_mgr_->GetValue("CVMFS_DNS_MAX_TTL", &optarg))
2241 ✗ dns_max_ttl = String2Uint64(optarg);
2242
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 1411 manager->SetDnsTtlLimits(dns_min_ttl, dns_max_ttl);
2243
2244
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 1411 if (options_mgr_->GetValue("CVMFS_DNS_SERVER", &optarg)) {
2245 ✗ download_mgr_->SetDnsServer(optarg);
2246 }
2247
2248
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 1411 if (options_mgr_->GetValue("CVMFS_IPFAMILY_PREFER", &optarg)) {
2249 ✗ switch (String2Int64(optarg)) {
2250 ✗ case 4:
2251 ✗ manager->SetIpPreference(dns::kIpPreferV4);
2252 ✗ break;
2253 ✗ case 6:
2254 ✗ manager->SetIpPreference(dns::kIpPreferV6);
2255 ✗ break;
2256 }
2257 }
2258
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 1411 if (options_mgr_->GetValue("CVMFS_MAX_IPADDR_PER_PROXY", &optarg))
2259 ✗ manager->SetMaxIpaddrPerProxy(String2Uint64(optarg));
2260 1411 }
2261
2262
2263 822 bool MountPoint::SetupExternalDownloadMgr(bool dogeosort) {
2264 822 string optarg;
2265
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 2466 external_download_mgr_ = download_mgr_->Clone(
2266
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 1644 perf::StatisticsTemplate("download-external", statistics_), "external");
2267
2268 unsigned timeout;
2269 unsigned timeout_direct;
2270
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 822 download_mgr_->GetTimeout(&timeout, &timeout_direct);
2271
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 822 if (options_mgr_->GetValue("CVMFS_EXTERNAL_TIMEOUT", &optarg)) {
2272 ✗ timeout = String2Uint64(optarg);
2273 }
2274
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 822 if (options_mgr_->GetValue("CVMFS_EXTERNAL_TIMEOUT_DIRECT", &optarg)) {
2275 ✗ timeout_direct = String2Uint64(optarg);
2276 }
2277
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 822 external_download_mgr_->SetTimeout(timeout, timeout_direct);
2278
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 822 if (options_mgr_->GetValue("CVMFS_EXTERNAL_METALINK", &optarg) &&
2280 ✗ (optarg != "")) {
2281 ✗ external_download_mgr_->SetMetalinkChain(optarg);
2282 // host chain will be set later when the metalink server is contacted
2283 ✗ external_download_mgr_->SetHostChain("");
2284 // metalink requires redirects
2285 ✗ external_download_mgr_->EnableRedirects();
2286
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 822 } else if (options_mgr_->GetValue("CVMFS_EXTERNAL_URL", &optarg)) {
2287
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 74 external_download_mgr_->SetHostChain(optarg);
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 74 if (dogeosort) {
2289 ✗ std::vector<std::string> host_chain;
2290 ✗ external_download_mgr_->GetHostInfo(&host_chain, NULL, NULL);
2291 ✗ download_mgr_->GeoSortServers(&host_chain);
2292 ✗ external_download_mgr_->SetHostChain(host_chain);
2293 }
2294 } else {
2295
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 748 external_download_mgr_->SetHostChain("");
2296 }
2297
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 822 if (options_mgr_->GetValue("CVMFS_EXTERNAL_MAX_SERVERS", &optarg)) {
2299
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 111 const unsigned max_servers = String2Uint64(optarg);
2300 111 std::vector<std::string> host_chain;
2301
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 111 external_download_mgr_->GetHostInfo(&host_chain, NULL, NULL);
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 111 if (max_servers > 0 && max_servers < host_chain.size()) {
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 37 host_chain.resize(max_servers);
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 37 external_download_mgr_->SetHostChain(host_chain);
2305 }
2306 111 }
2307
2308
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 822 string proxies = "DIRECT";
2309
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 822 if (options_mgr_->GetValue("CVMFS_EXTERNAL_HTTP_PROXY", &optarg)) {
2310 ✗ proxies = download::ResolveProxyDescription(
2311 optarg,
2312 ✗ file_system_->workspace() + "/proxies-external" + GetUniqFileSuffix(),
2313 ✗ external_download_mgr_);
2314 ✗ if (proxies == "") {
2315 ✗ boot_error_ = "failed to discover external HTTP proxy servers";
2316 ✗ boot_status_ = loader::kFailWpad;
2317 ✗ return false;
2318 }
2319 }
2320 822 string fallback_proxies;
2321
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 822 if (options_mgr_->GetValue("CVMFS_EXTERNAL_FALLBACK_PROXY", &optarg))
2322 ✗ fallback_proxies = optarg;
2323
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 822 external_download_mgr_->SetProxyChain(
2324 proxies, fallback_proxies, download::DownloadManager::kSetProxyBoth);
2325
2326 822 return true;
2327 822 }
2328
2329
2330 1411 void MountPoint::SetupHttpTuning() {
2331 1411 string optarg;
2332
2333 // TODO(jblomer): avoid double default settings
2334
2335 1411 unsigned timeout = kDefaultTimeoutSec;
2336 1411 unsigned timeout_direct = kDefaultTimeoutSec;
2337
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 1411 if (options_mgr_->GetValue("CVMFS_TIMEOUT", &optarg))
2338 ✗ timeout = String2Uint64(optarg);
2339
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 1411 if (options_mgr_->GetValue("CVMFS_TIMEOUT_DIRECT", &optarg))
2340 ✗ timeout_direct = String2Uint64(optarg);
2341
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 1411 download_mgr_->SetTimeout(timeout, timeout_direct);
2342
2343 1411 unsigned max_retries = kDefaultRetries;
2344 1411 unsigned backoff_init = kDefaultBackoffInitMs;
2345 1411 unsigned backoff_max = kDefaultBackoffMaxMs;
2346
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 1411 if (options_mgr_->GetValue("CVMFS_MAX_RETRIES", &optarg))
2347
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 1392 max_retries = String2Uint64(optarg);
2348
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 1411 if (options_mgr_->GetValue("CVMFS_BACKOFF_INIT", &optarg))
2349 ✗ backoff_init = String2Uint64(optarg) * 1000;
2350
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 1411 if (options_mgr_->GetValue("CVMFS_BACKOFF_MAX", &optarg))
2351 ✗ backoff_max = String2Uint64(optarg) * 1000;
2352
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 1411 download_mgr_->SetRetryParameters(max_retries, backoff_init, backoff_max);
2353
2354
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 1411 if (options_mgr_->GetValue("CVMFS_LOW_SPEED_LIMIT", &optarg))
2355 ✗ download_mgr_->SetLowSpeedLimit(String2Uint64(optarg));
2356
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 1411 if (options_mgr_->GetValue("CVMFS_PROXY_RESET_AFTER", &optarg)) {
2357 ✗ download_mgr_->SetProxyGroupResetDelay(String2Uint64(optarg));
2358 // Use the proxy reset delay as the default for the metalink reset delay
2359 ✗ download_mgr_->SetMetalinkResetDelay(String2Uint64(optarg));
2360 }
2361
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 1411 if (options_mgr_->GetValue("CVMFS_METALINK_RESET_AFTER", &optarg))
2362 ✗ download_mgr_->SetMetalinkResetDelay(String2Uint64(optarg));
2363
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 1411 if (options_mgr_->GetValue("CVMFS_HOST_RESET_AFTER", &optarg))
2364 ✗ download_mgr_->SetHostResetDelay(String2Uint64(optarg));
2365
2366
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 2822 if (options_mgr_->GetValue("CVMFS_FOLLOW_REDIRECTS", &optarg)
2367
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 2822 && options_mgr_->IsOn(optarg)) {
2368 ✗ download_mgr_->EnableRedirects();
2369 }
2370
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 1411 if (options_mgr_->GetValue("CVMFS_INFO_HEADER", &optarg) && (optarg != "")) {
2371 ✗ download_mgr_->EnableInfoHeader();
2372 ✗ download_mgr_->SetInfoHeaderTemplate(optarg);
2373
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 2822 } else if (options_mgr_->GetValue("CVMFS_SEND_INFO_HEADER", &optarg)
2374
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 2822 && options_mgr_->IsOn(optarg)) {
2375 ✗ download_mgr_->EnableInfoHeader();
2376 ✗ download_mgr_->SetInfoHeaderTemplate("%{path}");
2377 }
2378 1411 }
2379
2380 /*
2381 * Check whether permission is needed to read from user process environment.
2382 */
2383 ✗ bool MountPoint::NeedsReadEnviron(OptionsManager *omgr) {
2384 // This is a class (static) method because it is used early, before
2385 // all the above initialization is done, so can't rely on mountpoint
2386 // object data.
2387 ✗ string info_header;
2388 ✗ omgr->GetValue("CVMFS_INFO_HEADER", &info_header);
2389 ✗ return (info_header.find("%{env:") != std::string::npos);
2390 }
2391
2392 822 void MountPoint::SetupInodeAnnotation() {
2393 822 string optarg;
2394
2395
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 822 if (file_system_->IsNfsSource()) {
2396 ✗ inode_annotation_ = new catalog::InodeNfsGenerationAnnotation();
2397 } else {
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 822 inode_annotation_ = new catalog::InodeGenerationAnnotation();
2399 }
2400
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 822 if (options_mgr_->GetValue("CVMFS_INITIAL_GENERATION", &optarg)) {
2401 ✗ inode_annotation_->IncGeneration(String2Uint64(optarg));
2402 }
2403
2404
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 822 if (file_system_->type() == FileSystem::kFsFuse) {
2405 797 catalog_mgr_->SetInodeAnnotation(inode_annotation_);
2406 }
2407 822 }
2408
2409
2410 822 bool MountPoint::SetupOwnerMaps() {
2411 822 string optarg;
2412 822 catalog::OwnerMap uid_map;
2413 822 catalog::OwnerMap gid_map;
2414
2415
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 822 if (options_mgr_->GetValue("CVMFS_UID_MAP", &optarg)) {
2416
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 37 if (!uid_map.Read(optarg)) {
2417
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 37 boot_error_ = "failed to parse uid map " + optarg;
2418 37 boot_status_ = loader::kFailOptions;
2419 37 return false;
2420 }
2421 }
2422
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 785 if (options_mgr_->GetValue("CVMFS_GID_MAP", &optarg)) {
2423 ✗ if (!gid_map.Read(optarg)) {
2424 ✗ boot_error_ = "failed to parse gid map " + optarg;
2425 ✗ boot_status_ = loader::kFailOptions;
2426 ✗ return false;
2427 }
2428 }
2429
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 785 catalog_mgr_->SetOwnerMaps(uid_map, gid_map);
2430
2431 // TODO(jblomer): make local to catalog manager
2432
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 1570 if (options_mgr_->GetValue("CVMFS_CLAIM_OWNERSHIP", &optarg)
2433
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 1570 && options_mgr_->IsOn(optarg)) {
2434 ✗ g_claim_ownership = true;
2435 }
2436
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 1570 if (options_mgr_->GetValue("CVMFS_WORLD_READABLE", &optarg)
2437
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 1570 && options_mgr_->IsOn(optarg)) {
2438 ✗ g_world_readable = true;
2439 }
2440
2441
2442 785 return true;
2443 822 }
2444