| Line |
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Source |
| 1 |
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/** |
| 2 |
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* This file is part of the CernVM File System. |
| 3 |
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* |
| 4 |
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* Steers the booting of CernVM-FS repositories. |
| 5 |
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*/ |
| 6 |
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| 7 |
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#ifndef CVMFS_MOUNTPOINT_H_ |
| 8 |
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#define CVMFS_MOUNTPOINT_H_ |
| 9 |
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| 10 |
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#include <pthread.h> |
| 11 |
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#include <sys/statvfs.h> |
| 12 |
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#include <unistd.h> |
| 13 |
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| 14 |
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#include <ctime> |
| 15 |
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#include <set> |
| 16 |
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#include <string> |
| 17 |
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#include <vector> |
| 18 |
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| 19 |
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#include "cache.h" |
| 20 |
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#include "crypto/hash.h" |
| 21 |
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#include "path_filters/inclusion_spec.h" |
| 22 |
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#include "duplex_testing.h" |
| 23 |
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#include "file_watcher.h" |
| 24 |
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#include "loader.h" |
| 25 |
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#include "magic_xattr.h" |
| 26 |
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#include "util/algorithm.h" |
| 27 |
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| 28 |
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class AuthzAttachment; |
| 29 |
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class AuthzFetcher; |
| 30 |
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class AuthzSessionManager; |
| 31 |
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class BackoffThrottle; |
| 32 |
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class BundleMgr; |
| 33 |
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class CacheManager; |
| 34 |
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namespace catalog { |
| 35 |
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class ClientCatalogManager; |
| 36 |
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class InodeAnnotation; |
| 37 |
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} // namespace catalog |
| 38 |
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struct ChunkTables; |
| 39 |
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namespace cvmfs { |
| 40 |
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class Fetcher; |
| 41 |
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class Uuid; |
| 42 |
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} // namespace cvmfs |
| 43 |
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namespace download { |
| 44 |
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class DownloadManager; |
| 45 |
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} |
| 46 |
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namespace glue { |
| 47 |
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class InodeTracker; |
| 48 |
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class DentryTracker; |
| 49 |
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class PageCacheTracker; |
| 50 |
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} // namespace glue |
| 51 |
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namespace lru { |
| 52 |
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class InodeCache; |
| 53 |
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class Md5PathCache; |
| 54 |
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class PathCache; |
| 55 |
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} // namespace lru |
| 56 |
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class NfsMaps; |
| 57 |
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class OptionsManager; |
| 58 |
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namespace perf { |
| 59 |
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class Counter; |
| 60 |
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class Statistics; |
| 61 |
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class TelemetryAggregator; |
| 62 |
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} // namespace perf |
| 63 |
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namespace signature { |
| 64 |
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class SignatureManager; |
| 65 |
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} |
| 66 |
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class SimpleChunkTables; |
| 67 |
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class Tracer; |
| 68 |
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| 69 |
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| 70 |
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/** |
| 71 |
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* Construction of FileSystem and MountPoint can go wrong. In this case, we'd |
| 72 |
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* like to know why. This is a base class for both FileSystem and MountPoint. |
| 73 |
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*/ |
| 74 |
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class BootFactory { |
| 75 |
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public: |
| 76 |
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4268 |
BootFactory() : boot_status_(loader::kFailUnknown) { } |
| 77 |
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488 |
bool IsValid() { return boot_status_ == loader::kFailOk; } |
| 78 |
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3307 |
loader::Failures boot_status() { return boot_status_; } |
| 79 |
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115 |
std::string boot_error() { return boot_error_; } |
| 80 |
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| 81 |
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/** |
| 82 |
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* Used in the fuse module to artificially set boot errors that are specific |
| 83 |
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* to the fuse boot procedure. |
| 84 |
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*/ |
| 85 |
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✗ |
void set_boot_status(loader::Failures code) { boot_status_ = code; } |
| 86 |
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| 87 |
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protected: |
| 88 |
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loader::Failures boot_status_; |
| 89 |
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std::string boot_error_; |
| 90 |
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}; |
| 91 |
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| 92 |
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| 93 |
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/** |
| 94 |
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* The FileSystem object initializes cvmfs' global state. It sets up sqlite and |
| 95 |
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* the cache directory and it can contain multiple mount points. It currently |
| 96 |
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* does so only for libcvmfs; the cvmfs fuse module has exactly one FileSystem |
| 97 |
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* object and one MountPoint object. |
| 98 |
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*/ |
| 99 |
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class FileSystem : SingleCopy, public BootFactory { |
| 100 |
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FRIEND_TEST(T_MountPoint, MkCacheParm); |
| 101 |
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FRIEND_TEST(T_MountPoint, CacheSettings); |
| 102 |
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FRIEND_TEST(T_MountPoint, CheckInstanceName); |
| 103 |
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FRIEND_TEST(T_MountPoint, CheckPosixCacheSettings); |
| 104 |
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FRIEND_TEST(T_Cvmfs, Basics); |
| 105 |
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| 106 |
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public: |
| 107 |
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enum Type { |
| 108 |
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kFsFuse = 0, |
| 109 |
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kFsLibrary |
| 110 |
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}; |
| 111 |
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| 112 |
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struct FileSystemInfo { |
| 113 |
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1847 |
FileSystemInfo() |
| 114 |
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3694 |
: type(kFsFuse) |
| 115 |
|
1847 |
, options_mgr(NULL) |
| 116 |
|
1847 |
, wait_workspace(false) |
| 117 |
|
1847 |
, foreground(false) { } |
| 118 |
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/** |
| 119 |
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* Name can is used to identify this particular instance of cvmfs in the |
| 120 |
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* cache (directory). Normally it is the fully qualified repository name. |
| 121 |
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* For libcvmfs and in other special mount conditions, it can be something |
| 122 |
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* else. Only file systems with different names can share a cache because |
| 123 |
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* the name is part of a lock file. |
| 124 |
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*/ |
| 125 |
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std::string name; |
| 126 |
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| 127 |
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/** |
| 128 |
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* Used to fork & execve into different flavors of the binary, e.g. the |
| 129 |
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* quota manager. |
| 130 |
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*/ |
| 131 |
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std::string exe_path; |
| 132 |
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| 133 |
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/** |
| 134 |
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* Fuse mount point or libcvmfs. |
| 135 |
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*/ |
| 136 |
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Type type; |
| 137 |
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| 138 |
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/** |
| 139 |
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* All further configuration has to be present in the options manager. |
| 140 |
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*/ |
| 141 |
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OptionsManager *options_mgr; |
| 142 |
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| 143 |
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/** |
| 144 |
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* Decides if FileSystem construction should block if the workspace is |
| 145 |
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* currently taken. This is used to coordinate fuse mounts where the next |
| 146 |
|
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* mount happens while the previous fuse module is not yet fully cleaned |
| 147 |
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* up. |
| 148 |
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*/ |
| 149 |
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bool wait_workspace; |
| 150 |
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/** |
| 151 |
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* The fuse module should not daemonize. That means the quota manager |
| 152 |
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* should not daemonize, too, but print debug messages to stdout. |
| 153 |
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*/ |
| 154 |
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bool foreground; |
| 155 |
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}; |
| 156 |
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| 157 |
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/** |
| 158 |
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* Keeps information about I/O errors, e.g. writing local files, permanent |
| 159 |
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* network errors, etc. It counts the number of errors and the timestamp |
| 160 |
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* of the latest errors for consumption by monitoring tools such as Nagios |
| 161 |
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*/ |
| 162 |
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class IoErrorInfo { |
| 163 |
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public: |
| 164 |
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IoErrorInfo(); |
| 165 |
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| 166 |
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void Reset(); |
| 167 |
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void AddIoError(); |
| 168 |
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void SetCounter(perf::Counter *c); |
| 169 |
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int64_t count(); |
| 170 |
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time_t timestamp_last(); |
| 171 |
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| 172 |
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private: |
| 173 |
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perf::Counter *counter_; |
| 174 |
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time_t timestamp_last_; |
| 175 |
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}; |
| 176 |
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| 177 |
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/** |
| 178 |
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* No NFS maps. |
| 179 |
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*/ |
| 180 |
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static const unsigned kNfsNone = 0x00; |
| 181 |
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/** |
| 182 |
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* Normal NFS maps by leveldb |
| 183 |
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*/ |
| 184 |
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static const unsigned kNfsMaps = 0x01; |
| 185 |
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/** |
| 186 |
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* NFS maps maintained by sqlite so that they can reside on an NFS mount |
| 187 |
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*/ |
| 188 |
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static const unsigned kNfsMapsHa = 0x02; |
| 189 |
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| 190 |
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static FileSystem *Create(const FileSystemInfo &fs_info); |
| 191 |
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~FileSystem(); |
| 192 |
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| 193 |
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// Used to setup logging before the file system object is created |
| 194 |
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static void SetupLoggingStandalone(const OptionsManager &options_mgr, |
| 195 |
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const std::string &prefix); |
| 196 |
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| 197 |
|
1611 |
bool IsNfsSource() { return nfs_mode_ & kNfsMaps; } |
| 198 |
|
37 |
bool IsHaNfsSource() { return nfs_mode_ & kNfsMapsHa; } |
| 199 |
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void ResetErrorCounters(); |
| 200 |
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void TearDown2ReadOnly(); |
| 201 |
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void RemapCatalogFd(int from, int to); |
| 202 |
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| 203 |
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// Used in cvmfs' RestoreState to prevent change of cache manager type |
| 204 |
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// during reload |
| 205 |
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void ReplaceCacheManager(CacheManager *new_cache_mgr); |
| 206 |
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| 207 |
|
3725 |
CacheManager *cache_mgr() { return cache_mgr_; } |
| 208 |
|
222 |
std::string cache_mgr_instance() { return cache_mgr_instance_; } |
| 209 |
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std::string exe_path() { return exe_path_; } |
| 210 |
|
74 |
bool found_previous_crash() { return found_previous_crash_; } |
| 211 |
|
✗ |
Log2Histogram *hist_fs_lookup() { return hist_fs_lookup_; } |
| 212 |
|
✗ |
Log2Histogram *hist_fs_forget() { return hist_fs_forget_; } |
| 213 |
|
✗ |
Log2Histogram *hist_fs_forget_multi() { return hist_fs_forget_multi_; } |
| 214 |
|
✗ |
Log2Histogram *hist_fs_getattr() { return hist_fs_getattr_; } |
| 215 |
|
✗ |
Log2Histogram *hist_fs_readlink() { return hist_fs_readlink_; } |
| 216 |
|
✗ |
Log2Histogram *hist_fs_opendir() { return hist_fs_opendir_; } |
| 217 |
|
✗ |
Log2Histogram *hist_fs_releasedir() { return hist_fs_releasedir_; } |
| 218 |
|
✗ |
Log2Histogram *hist_fs_readdir() { return hist_fs_readdir_; } |
| 219 |
|
✗ |
Log2Histogram *hist_fs_open() { return hist_fs_open_; } |
| 220 |
|
✗ |
Log2Histogram *hist_fs_read() { return hist_fs_read_; } |
| 221 |
|
✗ |
Log2Histogram *hist_fs_release() { return hist_fs_release_; } |
| 222 |
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|
| 223 |
|
✗ |
perf::Counter *n_fs_dir_open() { return n_fs_dir_open_; } |
| 224 |
|
✗ |
perf::Counter *n_fs_forget() { return n_fs_forget_; } |
| 225 |
|
✗ |
perf::Counter *n_fs_inode_replace() { return n_fs_inode_replace_; } |
| 226 |
|
✗ |
perf::Counter *n_fs_lookup() { return n_fs_lookup_; } |
| 227 |
|
✗ |
perf::Counter *n_fs_lookup_negative() { return n_fs_lookup_negative_; } |
| 228 |
|
✗ |
perf::Counter *n_fs_open() { return n_fs_open_; } |
| 229 |
|
✗ |
perf::Counter *n_fs_read() { return n_fs_read_; } |
| 230 |
|
✗ |
perf::Counter *n_fs_readlink() { return n_fs_readlink_; } |
| 231 |
|
912 |
perf::Counter *n_fs_stat() { return n_fs_stat_; } |
| 232 |
|
✗ |
perf::Counter *n_fs_stat_stale() { return n_fs_stat_stale_; } |
| 233 |
|
✗ |
perf::Counter *n_fs_statfs() { return n_fs_statfs_; } |
| 234 |
|
✗ |
perf::Counter *n_fs_statfs_cached() { return n_fs_statfs_cached_; } |
| 235 |
|
✗ |
IoErrorInfo *io_error_info() { return &io_error_info_; } |
| 236 |
|
1494 |
std::string name() { return name_; } |
| 237 |
|
✗ |
NfsMaps *nfs_maps() { return nfs_maps_; } |
| 238 |
|
✗ |
perf::Counter *no_open_dirs() { return no_open_dirs_; } |
| 239 |
|
✗ |
perf::Counter *no_open_files() { return no_open_files_; } |
| 240 |
|
✗ |
perf::Counter *n_eio_total() { return n_eio_total_; } |
| 241 |
|
✗ |
perf::Counter *n_eio_01() { return n_eio_01_; } |
| 242 |
|
✗ |
perf::Counter *n_eio_02() { return n_eio_02_; } |
| 243 |
|
✗ |
perf::Counter *n_eio_03() { return n_eio_03_; } |
| 244 |
|
✗ |
perf::Counter *n_eio_04() { return n_eio_04_; } |
| 245 |
|
✗ |
perf::Counter *n_eio_05() { return n_eio_05_; } |
| 246 |
|
✗ |
perf::Counter *n_eio_06() { return n_eio_06_; } |
| 247 |
|
✗ |
perf::Counter *n_eio_07() { return n_eio_07_; } |
| 248 |
|
✗ |
perf::Counter *n_eio_08() { return n_eio_08_; } |
| 249 |
|
✗ |
perf::Counter *n_emfile() { return n_emfile_; } |
| 250 |
|
4785 |
OptionsManager *options_mgr() { return options_mgr_; } |
| 251 |
|
1531 |
perf::Statistics *statistics() { return statistics_; } |
| 252 |
|
3334 |
Type type() { return type_; } |
| 253 |
|
1568 |
cvmfs::Uuid *uuid_cache() { return uuid_cache_; } |
| 254 |
|
3050 |
std::string workspace() { return workspace_; } |
| 255 |
|
|
|
| 256 |
|
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protected: |
| 257 |
|
✗ |
void SetHasCustomVfs(bool setting) { has_custom_sqlitevfs_ = setting; } |
| 258 |
|
|
|
| 259 |
|
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private: |
| 260 |
|
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/** |
| 261 |
|
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* Only one instance may be alive at any given time |
| 262 |
|
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*/ |
| 263 |
|
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static bool g_alive; |
| 264 |
|
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static const char *kDefaultCacheBase; // /var/lib/cvmfs |
| 265 |
|
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static const unsigned kDefaultQuotaLimit = 1024 * 1024 * 1024; // 1GB |
| 266 |
|
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static const unsigned kDefaultNfiles = 8192; // if CVMFS_NFILES is unset |
| 267 |
|
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static const char *kDefaultCacheMgrInstance; // "default" |
| 268 |
|
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|
| 269 |
|
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struct PosixCacheSettings { |
| 270 |
|
2402 |
PosixCacheSettings() |
| 271 |
|
2402 |
: is_shared(false) |
| 272 |
|
2402 |
, is_alien(false) |
| 273 |
|
2402 |
, is_managed(false) |
| 274 |
|
2402 |
, avoid_rename(false) |
| 275 |
|
2402 |
, cache_base_defined(false) |
| 276 |
|
2402 |
, cache_dir_defined(false) |
| 277 |
|
2402 |
, quota_limit(0) |
| 278 |
|
2402 |
, do_refcount(true) |
| 279 |
|
2402 |
, cleanup_unused_first(false) { } |
| 280 |
|
|
bool is_shared; |
| 281 |
|
|
bool is_alien; |
| 282 |
|
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bool is_managed; |
| 283 |
|
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bool avoid_rename; |
| 284 |
|
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bool cache_base_defined; |
| 285 |
|
|
bool cache_dir_defined; |
| 286 |
|
|
/** |
| 287 |
|
|
* Soft limit in bytes for the cache. The quota manager removes half the |
| 288 |
|
|
* cache when the limit is exceeded. |
| 289 |
|
|
*/ |
| 290 |
|
|
int64_t quota_limit; |
| 291 |
|
|
bool do_refcount; |
| 292 |
|
|
bool cleanup_unused_first; |
| 293 |
|
|
std::string cache_path; |
| 294 |
|
|
/** |
| 295 |
|
|
* Different from cache_path only if CVMFS_WORKSPACE or |
| 296 |
|
|
* CVMFS_CACHE_WORKSPACE is set. |
| 297 |
|
|
*/ |
| 298 |
|
|
std::string workspace; |
| 299 |
|
|
}; |
| 300 |
|
|
|
| 301 |
|
|
static void LogSqliteError(void *user_data __attribute__((unused)), |
| 302 |
|
|
int sqlite_extended_error, |
| 303 |
|
|
const char *message); |
| 304 |
|
|
|
| 305 |
|
|
explicit FileSystem(const FileSystemInfo &fs_info); |
| 306 |
|
|
|
| 307 |
|
|
void SetupLogging(); |
| 308 |
|
|
void CreateStatistics(); |
| 309 |
|
|
void SetupSqlite(); |
| 310 |
|
|
bool DetermineNfsMode(); |
| 311 |
|
|
bool SetupWorkspace(); |
| 312 |
|
|
bool SetupCwd(); |
| 313 |
|
|
bool LockWorkspace(); |
| 314 |
|
|
bool SetupCrashGuard(); |
| 315 |
|
|
bool SetupNfsMaps(); |
| 316 |
|
|
void SetupUuid(); |
| 317 |
|
|
|
| 318 |
|
|
std::string MkCacheParm(const std::string &generic_parameter, |
| 319 |
|
|
const std::string &instance); |
| 320 |
|
|
bool CheckInstanceName(const std::string &instance); |
| 321 |
|
|
bool TriageCacheMgr(); |
| 322 |
|
|
CacheManager *SetupCacheMgr(const std::string &instance); |
| 323 |
|
|
CacheManager *SetupPosixCacheMgr(const std::string &instance); |
| 324 |
|
|
CacheManager *SetupRamCacheMgr(const std::string &instance); |
| 325 |
|
|
CacheManager *SetupTieredCacheMgr(const std::string &instance); |
| 326 |
|
|
CacheManager *SetupExternalCacheMgr(const std::string &instance); |
| 327 |
|
|
PosixCacheSettings DeterminePosixCacheSettings(const std::string &instance); |
| 328 |
|
|
bool CheckPosixCacheSettings(const PosixCacheSettings &settings); |
| 329 |
|
|
bool SetupPosixQuotaMgr(const PosixCacheSettings &settings, |
| 330 |
|
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CacheManager *cache_mgr); |
| 331 |
|
|
|
| 332 |
|
|
// See FileSystemInfo for the following fields |
| 333 |
|
|
std::string name_; |
| 334 |
|
|
std::string exe_path_; |
| 335 |
|
|
Type type_; |
| 336 |
|
|
/** |
| 337 |
|
|
* Not owned by the FileSystem object |
| 338 |
|
|
*/ |
| 339 |
|
|
OptionsManager *options_mgr_; |
| 340 |
|
|
bool wait_workspace_; |
| 341 |
|
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bool foreground_; |
| 342 |
|
|
|
| 343 |
|
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perf::Counter *n_fs_open_; |
| 344 |
|
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perf::Counter *n_fs_dir_open_; |
| 345 |
|
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perf::Counter *n_fs_lookup_; |
| 346 |
|
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perf::Counter *n_fs_lookup_negative_; |
| 347 |
|
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perf::Counter *n_fs_stat_; |
| 348 |
|
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perf::Counter *n_fs_stat_stale_; |
| 349 |
|
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perf::Counter *n_fs_statfs_; |
| 350 |
|
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perf::Counter *n_fs_statfs_cached_; |
| 351 |
|
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perf::Counter *n_fs_read_; |
| 352 |
|
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perf::Counter *n_fs_readlink_; |
| 353 |
|
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perf::Counter *n_fs_forget_; |
| 354 |
|
|
perf::Counter *n_fs_inode_replace_; |
| 355 |
|
|
perf::Counter *no_open_files_; |
| 356 |
|
|
perf::Counter *no_open_dirs_; |
| 357 |
|
|
perf::Counter *n_eio_total_; |
| 358 |
|
|
perf::Counter *n_eio_01_; |
| 359 |
|
|
perf::Counter *n_eio_02_; |
| 360 |
|
|
perf::Counter *n_eio_03_; |
| 361 |
|
|
perf::Counter *n_eio_04_; |
| 362 |
|
|
perf::Counter *n_eio_05_; |
| 363 |
|
|
perf::Counter *n_eio_06_; |
| 364 |
|
|
perf::Counter *n_eio_07_; |
| 365 |
|
|
perf::Counter *n_eio_08_; |
| 366 |
|
|
perf::Counter *n_emfile_; |
| 367 |
|
|
IoErrorInfo io_error_info_; |
| 368 |
|
|
perf::Statistics *statistics_; |
| 369 |
|
|
|
| 370 |
|
|
Log2Histogram *hist_fs_lookup_; |
| 371 |
|
|
Log2Histogram *hist_fs_forget_; |
| 372 |
|
|
Log2Histogram *hist_fs_forget_multi_; |
| 373 |
|
|
Log2Histogram *hist_fs_getattr_; |
| 374 |
|
|
Log2Histogram *hist_fs_readlink_; |
| 375 |
|
|
Log2Histogram *hist_fs_opendir_; |
| 376 |
|
|
Log2Histogram *hist_fs_releasedir_; |
| 377 |
|
|
Log2Histogram *hist_fs_readdir_; |
| 378 |
|
|
Log2Histogram *hist_fs_open_; |
| 379 |
|
|
Log2Histogram *hist_fs_read_; |
| 380 |
|
|
Log2Histogram *hist_fs_release_; |
| 381 |
|
|
|
| 382 |
|
|
/** |
| 383 |
|
|
* A writeable local directory. Only small amounts of data (few bytes) will |
| 384 |
|
|
* be stored here. Needed because the cache can be read-only. The workspace |
| 385 |
|
|
* and the cache directory can be identical. A workspace can be shared among |
| 386 |
|
|
* FileSystem instances if their name is different. |
| 387 |
|
|
*/ |
| 388 |
|
|
std::string workspace_; |
| 389 |
|
|
/** |
| 390 |
|
|
* During setup, the fuse module changes its working directory to workspace. |
| 391 |
|
|
* Afterwards, workspace_ is ".". Store the original one in |
| 392 |
|
|
* workspace_fullpath_ |
| 393 |
|
|
*/ |
| 394 |
|
|
std::string workspace_fullpath_; |
| 395 |
|
|
int fd_workspace_lock_; |
| 396 |
|
|
std::string path_workspace_lock_; |
| 397 |
|
|
|
| 398 |
|
|
/** |
| 399 |
|
|
* An empty file that is removed on proper shutdown. |
| 400 |
|
|
*/ |
| 401 |
|
|
std::string path_crash_guard_; |
| 402 |
|
|
|
| 403 |
|
|
/** |
| 404 |
|
|
* A crash guard was found, thus we assume the file system was not shutdown |
| 405 |
|
|
* properly last time. |
| 406 |
|
|
*/ |
| 407 |
|
|
bool found_previous_crash_; |
| 408 |
|
|
|
| 409 |
|
|
/** |
| 410 |
|
|
* Only needed for fuse to detect and prevent double mounting at the same |
| 411 |
|
|
* location. |
| 412 |
|
|
*/ |
| 413 |
|
|
std::string mountpoint_; |
| 414 |
|
|
/** |
| 415 |
|
|
* The user-provided name of the parimay cache manager or 'default' if none |
| 416 |
|
|
* is specified. |
| 417 |
|
|
*/ |
| 418 |
|
|
std::string cache_mgr_instance_; |
| 419 |
|
|
/** |
| 420 |
|
|
* Keep track of all the cache instances to detect circular definitions with |
| 421 |
|
|
* the tiered cache. |
| 422 |
|
|
*/ |
| 423 |
|
|
std::set<std::string> constructed_instances_; |
| 424 |
|
|
std::string nfs_maps_dir_; |
| 425 |
|
|
/** |
| 426 |
|
|
* Combination of kNfs... flags |
| 427 |
|
|
*/ |
| 428 |
|
|
unsigned nfs_mode_; |
| 429 |
|
|
CacheManager *cache_mgr_; |
| 430 |
|
|
/** |
| 431 |
|
|
* Persistent for the cache directory + name combination. It is used in the |
| 432 |
|
|
* Geo-API to allow for per-client responses when no proxy is used. |
| 433 |
|
|
*/ |
| 434 |
|
|
cvmfs::Uuid *uuid_cache_; |
| 435 |
|
|
|
| 436 |
|
|
/** |
| 437 |
|
|
* TODO(jblomer): Move to MountPoint. Tricky because of the sqlite maps |
| 438 |
|
|
* and the sqlite configuration done for the file catalogs. |
| 439 |
|
|
*/ |
| 440 |
|
|
NfsMaps *nfs_maps_; |
| 441 |
|
|
/** |
| 442 |
|
|
* Used internally to remember if the Sqlite memory manager need to be shut |
| 443 |
|
|
* down. |
| 444 |
|
|
*/ |
| 445 |
|
|
bool has_custom_sqlitevfs_; |
| 446 |
|
|
}; |
| 447 |
|
|
|
| 448 |
|
|
/** |
| 449 |
|
|
* The StatfsCache class is a class purely designed as "struct" (= holding |
| 450 |
|
|
* object for all its parameters). |
| 451 |
|
|
* All its logic, including the locking mechanism, is implemented in the |
| 452 |
|
|
* function cvmfs_statfs in cvmfs.cc |
| 453 |
|
|
*/ |
| 454 |
|
|
class StatfsCache : SingleCopy { |
| 455 |
|
|
public: |
| 456 |
|
734 |
explicit StatfsCache(uint64_t cacheValid) |
| 457 |
|
734 |
: expiry_deadline_(0), cache_timeout_(cacheValid) { |
| 458 |
|
734 |
memset(&info_, 0, sizeof(info_)); |
| 459 |
|
734 |
lock_ = reinterpret_cast<pthread_mutex_t *>( |
| 460 |
|
734 |
smalloc(sizeof(pthread_mutex_t))); |
| 461 |
|
734 |
const int retval = pthread_mutex_init(lock_, NULL); |
| 462 |
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|
734 |
assert(retval == 0); |
| 463 |
|
734 |
} |
| 464 |
|
734 |
~StatfsCache() { |
| 465 |
|
734 |
pthread_mutex_destroy(lock_); |
| 466 |
|
734 |
free(lock_); |
| 467 |
|
734 |
} |
| 468 |
|
✗ |
uint64_t *expiry_deadline() { return &expiry_deadline_; } |
| 469 |
|
✗ |
const uint64_t cache_timeout() { return cache_timeout_; } |
| 470 |
|
✗ |
struct statvfs *info() { return &info_; } |
| 471 |
|
✗ |
pthread_mutex_t *lock() { return lock_; } |
| 472 |
|
|
|
| 473 |
|
|
private: |
| 474 |
|
|
pthread_mutex_t *lock_; |
| 475 |
|
|
// Timestamp/deadline when the currently cached statvfs info_ becomes invalid |
| 476 |
|
|
uint64_t expiry_deadline_; |
| 477 |
|
|
// Time in seconds how long statvfs info_ should be cached |
| 478 |
|
|
uint64_t cache_timeout_; |
| 479 |
|
|
struct statvfs info_; |
| 480 |
|
|
}; |
| 481 |
|
|
|
| 482 |
|
|
/** |
| 483 |
|
|
* A MountPoint provides a clip around all the different *Manager objects that |
| 484 |
|
|
* in combination represent a mounted cvmfs repository. Its main purpose is |
| 485 |
|
|
* the controlled construction and deconstruction of the involved ensemble of |
| 486 |
|
|
* classes based on the information passed from an options manager. |
| 487 |
|
|
* |
| 488 |
|
|
* A MountPoint is constructed on top of a successfully constructed FileSystem. |
| 489 |
|
|
* |
| 490 |
|
|
* We use pointers to manager classes to make the order of construction and |
| 491 |
|
|
* destruction explicit and also to keep the include list for this header small. |
| 492 |
|
|
*/ |
| 493 |
|
|
class MountPoint : SingleCopy, public BootFactory { |
| 494 |
|
|
friend class T_BundleMgr; |
| 495 |
|
|
|
| 496 |
|
|
public: |
| 497 |
|
|
/** |
| 498 |
|
|
* If catalog reload fails, try again in 3 minutes |
| 499 |
|
|
*/ |
| 500 |
|
|
static const unsigned kShortTermTTL = 180; |
| 501 |
|
|
static const time_t kIndefiniteDeadline = time_t(-1); |
| 502 |
|
|
|
| 503 |
|
|
static MountPoint *Create(const std::string &fqrn, |
| 504 |
|
|
FileSystem *file_system, |
| 505 |
|
|
OptionsManager *options_mgr = NULL); |
| 506 |
|
|
~MountPoint(); |
| 507 |
|
|
|
| 508 |
|
|
// Check whether permission is needed to read from user process environment |
| 509 |
|
|
static bool NeedsReadEnviron(OptionsManager *omgr); |
| 510 |
|
|
|
| 511 |
|
|
unsigned GetMaxTtlMn(); |
| 512 |
|
|
unsigned GetEffectiveTtlSec(); |
| 513 |
|
|
void SetMaxTtlMn(unsigned value_minutes); |
| 514 |
|
|
void SetMaxTtlSec(unsigned value_secs); |
| 515 |
|
|
void ReEvaluateAuthz(); |
| 516 |
|
|
|
| 517 |
|
✗ |
AuthzSessionManager *authz_session_mgr() { return authz_session_mgr_; } |
| 518 |
|
✗ |
BackoffThrottle *backoff_throttle() { return backoff_throttle_; } |
| 519 |
|
|
/** |
| 520 |
|
|
* The file bundle prefetcher; NULL unless CVMFS_PREFETCH_FILEBUNDLES is on. |
| 521 |
|
|
*/ |
| 522 |
|
305 |
BundleMgr *bundle_mgr() { return bundle_mgr_; } |
| 523 |
|
2364 |
catalog::ClientCatalogManager *catalog_mgr() { return catalog_mgr_; } |
| 524 |
|
✗ |
ChunkTables *chunk_tables() { return chunk_tables_; } |
| 525 |
|
127 |
download::DownloadManager *download_mgr() { return download_mgr_; } |
| 526 |
|
148 |
download::DownloadManager *external_download_mgr() { |
| 527 |
|
148 |
return external_download_mgr_; |
| 528 |
|
|
} |
| 529 |
|
✗ |
download::DownloadManager *full_replica_download_mgr() { |
| 530 |
|
✗ |
return full_replica_download_mgr_; |
| 531 |
|
|
} |
| 532 |
|
✗ |
file_watcher::FileWatcher *resolv_conf_watcher() { |
| 533 |
|
✗ |
return resolv_conf_watcher_; |
| 534 |
|
|
} |
| 535 |
|
1821 |
cvmfs::Fetcher *fetcher() { return fetcher_; } |
| 536 |
|
✗ |
bool fixed_catalog() { return fixed_catalog_; } |
| 537 |
|
1449 |
std::string fqrn() const { return fqrn_; } |
| 538 |
|
|
// TODO(jblomer): use only a singler fetcher object |
| 539 |
|
✗ |
cvmfs::Fetcher *external_fetcher() { return external_fetcher_; } |
| 540 |
|
✗ |
AuthzFetcher *authz_fetcher() { return authz_fetcher_; }; |
| 541 |
|
2714 |
FileSystem *file_system() { return file_system_; } |
| 542 |
|
✗ |
MagicXattrManager *magic_xattr_mgr() { return magic_xattr_mgr_; } |
| 543 |
|
2 |
bool has_membership_req() { return has_membership_req_; } |
| 544 |
|
✗ |
bool enforce_acls() { return enforce_acls_; } |
| 545 |
|
✗ |
bool cache_symlinks() { return cache_symlinks_; } |
| 546 |
|
✗ |
bool fuse_expire_entry() { return fuse_expire_entry_; } |
| 547 |
|
✗ |
catalog::InodeAnnotation *inode_annotation() { return inode_annotation_; } |
| 548 |
|
✗ |
glue::InodeTracker *inode_tracker() { return inode_tracker_; } |
| 549 |
|
✗ |
lru::InodeCache *inode_cache() { return inode_cache_; } |
| 550 |
|
✗ |
double kcache_timeout_sec() { return kcache_timeout_sec_; } |
| 551 |
|
1748 |
lru::Md5PathCache *md5path_cache() { return md5path_cache_; } |
| 552 |
|
✗ |
std::string membership_req() { return membership_req_; } |
| 553 |
|
✗ |
glue::DentryTracker *dentry_tracker() { return dentry_tracker_; } |
| 554 |
|
✗ |
glue::PageCacheTracker *page_cache_tracker() { return page_cache_tracker_; } |
| 555 |
|
✗ |
lru::PathCache *path_cache() { return path_cache_; } |
| 556 |
|
✗ |
std::string repository_tag() { return repository_tag_; } |
| 557 |
|
✗ |
SimpleChunkTables *simple_chunk_tables() { return simple_chunk_tables_; } |
| 558 |
|
4335 |
perf::Statistics *statistics() { return statistics_; } |
| 559 |
|
✗ |
perf::TelemetryAggregator *telemetry_aggr() { return telemetry_aggr_; } |
| 560 |
|
1445 |
signature::SignatureManager *signature_mgr() { return signature_mgr_; } |
| 561 |
|
✗ |
uid_t talk_socket_uid() { return talk_socket_uid_; } |
| 562 |
|
✗ |
gid_t talk_socket_gid() { return talk_socket_gid_; } |
| 563 |
|
✗ |
std::string talk_socket_path() { return talk_socket_path_; } |
| 564 |
|
✗ |
Tracer *tracer() { return tracer_; } |
| 565 |
|
✗ |
cvmfs::Uuid *uuid() { return uuid_; } |
| 566 |
|
✗ |
StatfsCache *statfs_cache() { return statfs_cache_; } |
| 567 |
|
|
|
| 568 |
|
|
/** |
| 569 |
|
|
* Returns the partial replication inclusion spec if this mount point is |
| 570 |
|
|
* connected to a partial Stratum-1, or NULL otherwise. Not owned by caller. |
| 571 |
|
|
*/ |
| 572 |
|
✗ |
catalog::InclusionSpec *partial_inclusion_spec() const { |
| 573 |
|
✗ |
return partial_inclusion_spec_; |
| 574 |
|
|
} |
| 575 |
|
|
|
| 576 |
|
|
/** |
| 577 |
|
|
* Returns true if the partial replica mode is "fail" (return EIO for missing |
| 578 |
|
|
* objects instead of failing over to a full replica). |
| 579 |
|
|
*/ |
| 580 |
|
✗ |
bool partial_replica_fail_mode() const { return partial_replica_fail_mode_; } |
| 581 |
|
|
|
| 582 |
|
|
bool ReloadBlacklists(); |
| 583 |
|
|
void DisableCacheSymlinks(); |
| 584 |
|
|
void EnableFuseExpireEntry(); |
| 585 |
|
|
|
| 586 |
|
|
MountPoint(const std::string &fqrn, |
| 587 |
|
|
FileSystem *file_system, |
| 588 |
|
|
OptionsManager *options_mgr); |
| 589 |
|
|
|
| 590 |
|
|
private: |
| 591 |
|
|
/** |
| 592 |
|
|
* The maximum TTL can be used to cap a root catalogs registered ttl. By |
| 593 |
|
|
* default this is disabled (= 0). |
| 594 |
|
|
*/ |
| 595 |
|
|
static const unsigned kDefaultMaxTtlSec = 0; |
| 596 |
|
|
/** |
| 597 |
|
|
* Let fuse cache dentries for 1 minute. |
| 598 |
|
|
*/ |
| 599 |
|
|
static const unsigned kDefaultKCacheTtlSec = 60; |
| 600 |
|
|
/** |
| 601 |
|
|
* Number of Md5Path entries in the libcvmfs cache. |
| 602 |
|
|
*/ |
| 603 |
|
|
static const unsigned kLibPathCacheSize = 32000; |
| 604 |
|
|
/** |
| 605 |
|
|
* Cache seven times more md5 paths than inodes in the fuse module. |
| 606 |
|
|
*/ |
| 607 |
|
|
static const unsigned kInodeCacheFactor = 7; |
| 608 |
|
|
/** |
| 609 |
|
|
* Default to 16M RAM for meta-data caches; does not include the inode tracker |
| 610 |
|
|
*/ |
| 611 |
|
|
static const unsigned kDefaultMemcacheSize = 16 * 1024 * 1024; |
| 612 |
|
|
/** |
| 613 |
|
|
* Where to look for external authz helpers. |
| 614 |
|
|
*/ |
| 615 |
|
|
static const char *kDefaultAuthzSearchPath; // "/usr/libexec/cvmfs/authz" |
| 616 |
|
|
/** |
| 617 |
|
|
* Maximum number of concurrent HTTP connections. |
| 618 |
|
|
*/ |
| 619 |
|
|
static const unsigned kDefaultNumConnections = 16; |
| 620 |
|
|
/** |
| 621 |
|
|
* Default network timeout |
| 622 |
|
|
*/ |
| 623 |
|
|
static const unsigned kDefaultTimeoutSec = 5; |
| 624 |
|
|
static const unsigned kDefaultRetries = 1; |
| 625 |
|
|
static const unsigned kDefaultBackoffInitMs = 2000; |
| 626 |
|
|
static const unsigned kDefaultBackoffMaxMs = 10000; |
| 627 |
|
|
/** |
| 628 |
|
|
* Memory buffer sizes for an activated tracer |
| 629 |
|
|
*/ |
| 630 |
|
|
static const unsigned kTracerBufferSize = 8192; |
| 631 |
|
|
static const unsigned kTracerFlushThreshold = 7000; |
| 632 |
|
|
static const char *kDefaultBlacklist; // "/etc/cvmfs/blacklist" |
| 633 |
|
|
/** |
| 634 |
|
|
* Default values for telemetry aggregator |
| 635 |
|
|
*/ |
| 636 |
|
|
static const int kDefaultTelemetrySendRateSec = 5 * 60; // 5min |
| 637 |
|
|
static const int kMinimumTelemetrySendRateSec = 5; // 5sec |
| 638 |
|
|
|
| 639 |
|
|
|
| 640 |
|
|
void CreateStatistics(); |
| 641 |
|
|
void CreateAuthz(); |
| 642 |
|
|
void CreateBundleMgr(); |
| 643 |
|
|
bool CreateSignatureManager(); |
| 644 |
|
|
bool CheckBlacklists(); |
| 645 |
|
|
bool CreateDownloadManagers(); |
| 646 |
|
|
bool CreateResolvConfWatcher(); |
| 647 |
|
|
void CreateFetchers(); |
| 648 |
|
|
void SetupPartialReplica(); |
| 649 |
|
|
bool CreateCatalogManager(); |
| 650 |
|
|
void CreateTables(); |
| 651 |
|
|
bool CreateTracer(); |
| 652 |
|
|
bool SetupBehavior(); |
| 653 |
|
|
void SetupDnsTuning(download::DownloadManager *manager); |
| 654 |
|
|
void SetupHttpTuning(); |
| 655 |
|
|
bool SetupExternalDownloadMgr(bool dogeosort); |
| 656 |
|
|
void SetupInodeAnnotation(); |
| 657 |
|
|
bool SetupOwnerMaps(); |
| 658 |
|
|
bool DetermineRootHash(shash::Any *root_hash); |
| 659 |
|
|
bool FetchHistory(std::string *history_path); |
| 660 |
|
|
std::string ReplaceHosts(std::string hosts); |
| 661 |
|
|
std::string GetUniqFileSuffix(); |
| 662 |
|
|
|
| 663 |
|
|
std::string fqrn_; |
| 664 |
|
|
cvmfs::Uuid *uuid_; |
| 665 |
|
|
/** |
| 666 |
|
|
* In contrast to the manager objects, the FileSystem is not owned. |
| 667 |
|
|
*/ |
| 668 |
|
|
FileSystem *file_system_; |
| 669 |
|
|
/** |
| 670 |
|
|
* The options manager is not owned. |
| 671 |
|
|
*/ |
| 672 |
|
|
OptionsManager *options_mgr_; |
| 673 |
|
|
|
| 674 |
|
|
perf::Statistics *statistics_; |
| 675 |
|
|
perf::TelemetryAggregator *telemetry_aggr_; |
| 676 |
|
|
AuthzFetcher *authz_fetcher_; |
| 677 |
|
|
AuthzSessionManager *authz_session_mgr_; |
| 678 |
|
|
AuthzAttachment *authz_attachment_; |
| 679 |
|
|
BackoffThrottle *backoff_throttle_; |
| 680 |
|
|
signature::SignatureManager *signature_mgr_; |
| 681 |
|
|
download::DownloadManager *download_mgr_; |
| 682 |
|
|
download::DownloadManager *external_download_mgr_; |
| 683 |
|
|
/** |
| 684 |
|
|
* Optional download manager targeting a full Stratum-1, used as a fallback |
| 685 |
|
|
* when this mount point's primary server is a partial replica. Owned. |
| 686 |
|
|
*/ |
| 687 |
|
|
download::DownloadManager *full_replica_download_mgr_; |
| 688 |
|
|
cvmfs::Fetcher *fetcher_; |
| 689 |
|
|
cvmfs::Fetcher *external_fetcher_; |
| 690 |
|
|
/** |
| 691 |
|
|
* Parsed inclusion spec downloaded from the partial Stratum-1, or NULL. |
| 692 |
|
|
*/ |
| 693 |
|
|
catalog::InclusionSpec *partial_inclusion_spec_; |
| 694 |
|
|
/** True when partial replica mode is "fail" (vs. "failover"). */ |
| 695 |
|
|
bool partial_replica_fail_mode_; |
| 696 |
|
|
catalog::InodeAnnotation *inode_annotation_; |
| 697 |
|
|
catalog::ClientCatalogManager *catalog_mgr_; |
| 698 |
|
|
/** |
| 699 |
|
|
* File bundle prefetcher, NULL unless CVMFS_PREFETCH_FILEBUNDLES is on. |
| 700 |
|
|
* Owns background threads that use catalog_mgr_ and the fetchers, so it |
| 701 |
|
|
* must be destroyed before them. |
| 702 |
|
|
*/ |
| 703 |
|
|
BundleMgr *bundle_mgr_; |
| 704 |
|
|
ChunkTables *chunk_tables_; |
| 705 |
|
|
SimpleChunkTables *simple_chunk_tables_; |
| 706 |
|
|
lru::InodeCache *inode_cache_; |
| 707 |
|
|
lru::PathCache *path_cache_; |
| 708 |
|
|
lru::Md5PathCache *md5path_cache_; |
| 709 |
|
|
Tracer *tracer_; |
| 710 |
|
|
glue::InodeTracker *inode_tracker_; |
| 711 |
|
|
glue::DentryTracker *dentry_tracker_; |
| 712 |
|
|
glue::PageCacheTracker *page_cache_tracker_; |
| 713 |
|
|
MagicXattrManager *magic_xattr_mgr_; |
| 714 |
|
|
StatfsCache *statfs_cache_; |
| 715 |
|
|
|
| 716 |
|
|
file_watcher::FileWatcher *resolv_conf_watcher_; |
| 717 |
|
|
|
| 718 |
|
|
unsigned max_ttl_sec_; |
| 719 |
|
|
pthread_mutex_t lock_max_ttl_; |
| 720 |
|
|
double kcache_timeout_sec_; |
| 721 |
|
|
bool fixed_catalog_; |
| 722 |
|
|
bool enforce_acls_; |
| 723 |
|
|
bool cache_symlinks_; |
| 724 |
|
|
bool fuse_expire_entry_; |
| 725 |
|
|
std::string repository_tag_; |
| 726 |
|
|
std::vector<std::string> blacklist_paths_; |
| 727 |
|
|
|
| 728 |
|
|
// TODO(jblomer): this should go in the catalog manager |
| 729 |
|
|
std::string membership_req_; |
| 730 |
|
|
bool has_membership_req_; |
| 731 |
|
|
|
| 732 |
|
|
std::string talk_socket_path_; |
| 733 |
|
|
uid_t talk_socket_uid_; |
| 734 |
|
|
gid_t talk_socket_gid_; |
| 735 |
|
|
}; // class MointPoint |
| 736 |
|
|
|
| 737 |
|
|
#endif // CVMFS_MOUNTPOINT_H_ |
| 738 |
|
|
|
| 739 |
|
|
|