changelog.txt

1.2.0.19
  * libtorrent release 1.2.0
  * using android NDK r18b
  * updated to boost 1.69.0
  * updated to OpenSSL 1.1.1a
  * fixed activeDhtLimit SettingsPack setter
  * development: new local build scripts for macosx, android, linux, windows
  * lt:only allow cwnd to be reduced so often (utp)
  * lt:avoid announcing local ip to private tracker
  * lt:don't treat loss of MTU probe packet as a congestion signal (utp)
  * lt:make sure we reset the duplicate ack counter every time we don't receive
    a duplicate ack (utp)
  * lt:remove old (incompatible) sequence number build option (utp)
  * lt:don't leave slow-start just because we hit the advertized receive window
  * lt:simplify and improve the uTP deferred ACK logic to respond earlier
  * lt:improve logic for fast-retransmitting packets on incoming SACK
  * lt:improve utp verbose logging a bit and make the parser pull out more
    metrics
  * lt:restore permissions on directories to 1.1. i.e. rely on umask
  * lt:minor fix to invalid_request_alert logging
  * lt:add assignment operator to span
  * lt:fix %u -> %d format codes
  * lt:fix deprecation markup in torrent_status
  * lt:tweak heuristic of how to interpret url seeds in multi-file torrents
  * lt:added more TORRENT_DEPRECATED_ENUM and deprecated unused aio_max in
    settings_pack
  * lt:take a string_view in setting_by_name
  * lt:fix typo in peer log
  * lt:deprecate start_default_features flag, it's only used in deprecated API
  * lt:remove verbose peer logging
  * lt:make stack_allocator::format_string() grow the buffer for large strings
  * lt:move where socket buffers are set up, to happen after the socket is
    opened. log errors in the peer's log instead of session and torrent
  * lt:add stats counter for the number of outstanding async_accept calls
  * lt:fix potential issue where the dht port message is sent before the peer
    handshake
  * lt:correct %u format code for pieces in printf() calls
  * lt:attempt to fix an assert for a newly connected peer that disconnects just
    as we receive the metadata
  * lt:don't use page aligned disk buffers
  * lt:include &ipv4= for private trackers
  * lt:add support for &ipv4= tracker argument
  * lt:use new bdecoder in ut_metadata class
  * lt:fix redundant bytes overflow
  * lt:check for self-assignment in bitfield operator=
  * lt:initialize bencoded ints with zero when constructed
  * lt:exit natpmp::on_reply earlier if we're shutting down
  * lt:fix setting ipv6 interface
  * lt:a better fix to the ssl port announce bug
  * lt:perfect forward async handlers for udp_socket to underlying asio socket
  * lt:move the whole add_torrent_params object into save_resume_data_alert
  * lt:actually fix the issue with the second tracker announce with port 0
  * lt:remove redundant MTU boundary checks
  * lt:fix of asio-debugging build in natpmp. resend_request could be called
    directly, not only as a handler for an async operation
  * lt:fix move_storage with save_path with a trailing slash
  * lt:only make snubbed peers invert the piece picking strategy when we're
    doing rarest first
  * lt:ssl listen port fix and improved tracker announce logging
  * lt:properly tear down the disk_io_thread object in set_piece_hashes() when
    exiting via an exception
  * lt:make throwing versions of read_resume_data
  * lt:fix overflow in sliding_average in the case of very high download rates
  * lt:renamed debug_notification to connect_notification
  * lt:fix issue in udp_socket with unusual socket failure
  * lt:utp close-reason use after free fix
  * lt:source code cleanup, performance and stability


1.2.0.18

  * using android NDK r17c
  * updated to boost 1.68.0
  * updated to OpenSSL 1.1.1
  * expose to java SWIG api the aux::arm_neon_support flag for android
      runtime verification
  * removed hack of custom getauxval definition
  * removed hack of fgetpos fsetpos
  * removed hack of mulodi4
  * null check protection in EnumNet
  * added new constructor to TorrentInfo from byte array
  * improved API for AnnounceEntry
  * added AnnounceEndpoint java API, it is a lightweight class
  * convert ErrorCode to a lightweight class
  * convert PeerInfo to a lightweight class, client is UTF-8 decoded
  * Vectors.byte_vector2string supports only ASCII and UTF-8
  * lt:fix redundant flushes of partfile metadata
  * lt:fix overflow in calc_bytes(), fix bug in piece picker accounting of
      filtered pad blocks
  * lt:improve type-safety of the severity parameter to
      peer_connection::disconnect()
  * lt:fix seed count when attaching a peer is aborted
  * lt:add option to ignore min-interval from tracker, when
      force-reannouncing a tracker
  * lt:raise default value for active_limit to 500, since it's supposed to be
      an upper sanity check limit
  * lt:make the print function for entry actually be json-like
  * lt:fall back to copy+remove if rename_file fails
  * lt:improve handling of filesystems not supporting fallocate()
  * lt:improve piece picker performance in tracking pad-blocks
  * lt:force proxy no longer disables the DHT
  * lt:simplify total_have/have_want/total_want. Make piece_picker track pad
      blocks and compute byte-progress at block granularity
  * lt:fix issue in self-connection detection introduced with the change to
      generate unique peer-ids for each connection.
  * lt:fix exporting files to avoid overwriting existing files, before
      exporting anything from a parts file, check whether it contains valid data
  * lt:improve connect-boost feature, to make new torrents quickly connect
      peers
  * lt:add a few more stats counters measuring outgoing connection attempts.
      simplify session_stats_header_alert by posting it on first call to
      post_session_stats() instead of making it gated by the alert_mask
  * lt:remove dead code from piece picker
  * lt:tweak the auto-cache-size logic to have slightly smaller cache
  * lt:fix deprecation of mmap_cache
  * lt:add missing increment of on_disk_counter and num_blocks_hashed counters
  * lt:apply piece priorities immediately, even though file priority updates
      are async. save both file- and piece priorities in fast resume
  * lt:simplify natpmp gateway and local address discovery
  * lt:fix typo in #if tests for TORRENT_DISABLE_ENCRYPTION
  * lt:in torrent_handle::id(), only shift down the pointer by 10 bits
  * lt:add piece index range checks on have_piece() and read_piece()
  * lt:make metric_type_t an enum class, deprecate the in-class enum values
  * lt:only post alerts for newly opened listen sockets, and only attempt to
      map ports for newly opened sockets
  * lt:remove special handling of uTP peers, uTP connections are no longer
      exempt from rate limits by default
  * lt:make natpmp deal with address_v6 instead of the bytes_type, and use
      write_address instead of memcpy
  * lt:fix exporting files from partfile while seeding
  * lt:set port in handshake based on source address
  * lt:fix Windows "file::preadv" emulation EOF handling
  * lt:fix windows async read EOF handling
  * lt:fix bug in read/write resume data functions
  * lt:dht don't set implied_port for SSL torrents
  * lt:dht announce with per-interface listen port
  * lt:deprecate (and disable) the force-proxy setting. Instead, always use
      the proxy when set, never fall back on circumventing it
  * lt:move the file priority vector throught the disk_io_job, to avoid copies
  * lt:raise priority of cache_flushed_alert and post it unconditionally when
      triggered explicitly by the client
  * lt:fix some validation issues in read_resume_data()
  * lt:bump the minimum number of hash jobs per thread from 2 to 4
  * lt:fix deadlock when loading libtorrent Dll
  * lt:fix torrent files prioritization
  * lt:fix some unintentional copies (with explicit moves)
  * lt:qualify some assignment operators to disallow assignment to temporaries
  * lt:fix missing move of file object in part_file
  * lt:use more threads when creating torrents
  * lt:bump checking_mem_usage default setting
  * lt:enable coalesce_reads and coalesce_writes by default on windows
  * lt:set the minimum number of checking jobs based on the number of hasher
      threads
  * lt:fix coalesce read bug
  * lt:introduce a fast-path for the hash disk job
  * lt:fix race condition in part_file
  * lt:fix parts file i/o errors
  * lt:fixed sign implicit conversion warnings and loop logic in new enum_net
      code
  * lt:improve the API for iterating over all files and pieces, with the new
      strong index types
  * lt:deprecate network-threads setting
  * lt:scrape_reply_alert should be high priority, since it's triggered by the
      client
  * lt:add support for multi-home NAT-PMP and Port Control Protocol (PCP)
  * lt:report transport version in NAT-PMP send/receive logs
  * lt:return a vector of mapping ids from add_port_mapping
  * lt:don't re-map all listen sockets when changing listen_interfaces
  * lt:create a natpmp instance for each listen socket
  * lt:enum_routes fixes on Linux
  * lt:fix scope_id in enum_routes on Windows
  * lt:remove UNC prefixes from device names on Windows
  * lt:fix netmask of routes on Windows
  * lt:deliver notification of alerts being dropped via alerts_dropped_alert
  * lt:raise priority of fastresume_rejected_alert
  * lt:don't use the partfile for existing files when their priority is 0
  * lt:set the hidden attribute when creating the part file
  * lt:only start a new accept request on new listen sockets, fix mapping new
      listen sockets when re-mapping is not requested
  * lt:don't change state to downloading if the torrent is finished
  * lt:bump `file_error_alert` priority
  * lt:fix address of point-to-point interfaces
  * lt:don't enable reuse-address for UDP sockets, as it will always succeed
      and not get any incoming packets
  * lt:account for partially downloaded pieces when announcing as a seed
  * lt:fix bandwidth allocation
  * lt:don't attempt to make uTP connections if we don't have any outgoing UDP
      sockets
  * lt:fix empty outgoing interfaces for UDP sockets
  * lt:only allow pinged nodes into the DHT routing table
  * lt:introduce a recursive mutex to protect the alert_manager, and hold the
      mutex while calling user callbacks and plugin hooks
  * lt:revise alert priorities / torrent::on_resume_data_checked issue
  * lt:save the number of idle threads locally in
      disk_io_thread_pool::thread_active
  * lt:fix use after free in flush_range and flush_iovec
  * lt:honor torrent abort even on file check error
  * lt:use settings_pack::urlseed_wait_retry for default retry with http seeds
  * lt:fix storage initialization
  * lt:strtoll() returns LLONG_MAX if the input overflows, handle this case
      properly in the http parser
  * lt:remove the global cache of the current time, just use clock::now()
  * lt:deprecated alert::progress_notification alert category, split into
      finer grained categories
  * lt:disk_io_thread abort_hash_jobs duplicate code refactor
  * lt:fix part-file header allocation
  * lt:fix potential fd leak in enum_net_interfaces
  * lt:don't perform DNS lookups for the DHT bootstrap unless DHT is enabled
  * lt:avoid calls to .address() when looking for endpoint protocol
  * lt:removed unnecessary loop in request_a_block
  * lt:fix changing file priorities while checking interrupts checking
  * lt:fix issue where the current tracker would be skipped for the next
      tracker in the same tier
  * lt:remove redundant check in tracker announce
  * lt:minor fixes in utp_socket_impl
  * lt:stat files in the disk thread, in default_storage::initialize()
      instead of the constructor
  * lt:dynamically load getauxval so as to support older android devices
  * lt:track whether a file is eligible for using the partfile on a per-file
      basis
  * lt:define NETLINK_NO_ENOBUFS and IFA_D_DADFAILED if they don't exist
  * lt:fix reporting &redundant= in tracker announces
  * lt:fix windows build with UNC paths disabled
  * lt:fix issue querying block size from torrent before metadata has been
      received
  * lt:source code cleanup, performance and stability

1.2.0.17

  * added EnumNet java API to help query the device network state/status/info
  * compiling with -mstackrealign for android x86, some devices have stack
      alignment issues
  * lt:fix tie-break in duplicate peer connection disconnect logic
  * lt:fix issue with SSL tracker connections left in CLOSE_WAIT state
  * lt:defer truncating existing files until the first time we write to them
  * lt:fix issue when receiving a torrent with 0-sized padfiles as magnet link
  * lt:fix issue resuming 1.0.x downloads with a file priority 0
  * lt:fix torrent_status::next_announce
  * lt:turn piece picker option flags into a proper type
  * lt:fix pad-file scalability issue
  * lt:made coalesce_reads/coalesce_writes settings take effect on linux
      and windows
  * lt:source code cleanup, performance and stability

1.2.0.16

  * using version in native library names
  * updated to boost 1.66.0
  * lt:use unique peer_ids per connection
  * lt:fix tracker connection bind issue for IPv6 trackers
  * lt:fix error handling of merkle torrents
  * lt:fix error handling of unsupported hard-links
  * lt:raise auto piece size selection limit to 16 MB in create_torrent()
  * lt:mark up performance counter operations as noexcept
  * lt:fix noexcept marking on entry, and make move assignment
  * lt:using make_address instead of deprecated from_string when boost>=1.66
  * lt:block_size is a constant, no need in passing it around as a variable
  * lt:remove_peer() and attach_peer() error handling
  * lt:support forced shutdown/destruction of torrent objects
  * lt:improve error handling during session shutdown
  * lt:handle serious errors in on_accept_connection handler
  * lt:deprecate save_encryption_settings
  * lt:handle errors in peer_connection
  * lt:support asio handler allocators in deferred_handler
  * lt:don't heap-allocate handlers for incoming UDP packets
  * lt:make the chunk header parser properly fail at end of buffer, and not
      require zero terminated strings
  * lt:add getters for peer_class_filter and peer_class_type_filter
  * lt:attempt to fix disconnections when torrents enter upload mode due to
      failures
  * lt:fix local network address mappings
  * lt:deprecate status_code from tracker_error_alert
  * lt:make torrent_handler::set_priority() to use peer_classes
  * lt:improve type safety of plugin interface
  * lt:introduce a proper type for pex flags to improve type-safety
  * lt:fix reopening of listen sockets when disabling force-proxy
  * lt:fix build against boost-1.66, specifically the boost.asio changes
  * lt:fix asio debugging
  * lt:fix rate limit utp feature
  * lt:fix i2p support
  * lt:source code cleanup, performance and stability

1.2.0.15

  * added java API to download magnet uri
  * fixed issue with prioritize_files swig wrapper
  * API change in TorrentHandle#saveResumeData, now it pass empty flags
      by default
  * using android NDK r16b
  * updated to OpenSSL 1.1.0g
  * lt:fix loading resume data when in seed mode
  * lt:fix incorrect use of make_tick_handler
  * lt:fix issue with initializing settings on session construction
  * lt:implemented support for magnet URI extension, select specific file
      indices for download, BEP53
  * lt:fix issue with receiving interested before metadata
  * lt:generate random keys for use in tracker announces, unique per torrent
      and the listen interface
  * lt:fix IPv6 tracker announce issue
  * lt:don't early move shared_ptr plugin in torrent::add_extension_fun
  * lt:fix force-proxy regression (udp sockets would not be opened)
  * lt:restore path sanitization behavior of ':'
  * lt:make tracker announces happen even if there are no open listen sockets
  * lt:fix issue where new listen sockets would not be opened when leaving
      force_proxy mode
  * lt:make sure the cork destructor doesn't leak exceptions
  * lt:stop posting alerts when the session is shutting down, solves some
      issues around destruction order
  * lt:add API to query whether alerts have been dropped or not
  * lt:keep updating aux::time_now() while there are announces, fixes an
      infinite loop during shutdown
  * lt:source code cleanup, performance and stability

1.2.0.14

  * fixed invalid handling of download_priority_t and swig wrapper

1.2.0.13

  * enable full SSL support in libtorrent
  * compiling with -fvisibility=hidden and -Os
  * using android NDK r16 beta2
  * updated to boost 1.65.1
  * internal session in SessionManager blocks privileged ports and
      only allows 80 and 443 for possible web seeds connections
  * lt:enable/disable the internal ip notifier with new setting
  * lt:fix issue of null m_part_file in default_storage readv/writev
  * lt:added reopen_network_sockets method to allow manual reopen of
      listen/outgoing sockets
  * lt:using NETLINK_NO_ENOBUFS to ignore ENOBUFS in netlink based ip notifier
  * lt:add limit of max 50 upnp mappings and recover free global mappings
  * lt:creating part file if needed only in set_file_priorities
  * lt:fix full allocation failure on APFS
  * lt:make parse_magnet_uri return the add_torrent_params instead of
      taking an in-out parameter
  * lt:pick standard std::aligned_union if using clang
  * lt:make disk_buffer_holder know the size of the buffer it holds, to fix
      buffer overrun in chained_buffer
  * lt:fix infinite loop when parsing certain invalid magnet links
  * lt:don't delete pieces from cache with refcount > 0
  * lt:don't try to connect to a global address with a local source address
  * lt:fix parsing of torrents with certain invalid filenames
  * lt:fix leak of peer_class objects (when setting per-torrent rate limits)
  * lt:more strict filename sanitation
  * lt:improve handling of case where a torrent file has no files in it
  * lt:clean up and fix edge cases in update_path_index
  * lt:fix issue with the name in single file torrents being sanitized away
  * lt:make the chunk header parser a bit more strict and accurate
  * lt:fix integer overflow in torrent_info
  * lt:fix windows file preallocation issue
  * lt:fix integer overflow in whole_pieces_threshold logic
  * lt:DHT nodes should only handle requests on their socket
  * lt:bump priority of storage_moved_alert and storage_moved_failed_alert
  * lt:deprecate lock_files settings
  * lt:fix uTP path MTU discovery issue on windows, DF bit was not set
      correctly
  * lt:select which DHT port to report based on the connection's local
      endpoint
  * lt:avoid port mapping of local IPv6 addresses
  * lt:include endpoint in tracker alerts
  * lt:hold an owning reference to storage objects in try_flush_write_blocks
  * lt:read_piece: handle failure to allocate piece buffer
  * lt:treat unique local IPv6 addresses as local
  * lt:source code cleanup, performance and stability

1.2.0.12

  * updated to boost 1.65
  * storing external address and listen endpoints as strings for better
      performance
  * improved creation of peers part of magnet links
  * lt:fixed netlink based network interface enumeration
  * lt:remove support for using a pool allocator for disk buffers
  * lt:fix IPv6 tracker support by performing the second announce in
      more cases
  * lt:fix issue in UTF-8 encoding validation
  * lt:fix infinite loop when parsing torrents whose filenames have zeroes
  * lt:fix invalid read in parse_int() in bdecode_node()
  * lt:don't create web seed connections if the torrent is upload only
  * lt:fix issue with very long tracker and web seed URLs
  * lt:fix issue where paths were not correctly coalesced when adding files
      to file_storage (used more memory than necessary)
  * lt:fix issue of force-recheck or seeding from read-only media, torrents
      with empty files in them
  * lt:fix force-recheck issue (new files would not be picked up)
  * lt:source code cleanup, performance and stability

1.2.0.11

  * using android NDK r15c
  * using -O2 for all architectures
  * lt:fix to clearing of piece picker in suggest_read_cache mode
  * lt:fix memory issues with listen sockets references
  * lt:fix bug where the resume data would fail to load the piece bitmask for
      seeds when suggest_cache was enabled
  * lt:submit disk jobs in read_piece()
  * lt:add reserve entry::to_string() (optimization)
  * lt:refactor several flags to torrent_handle::get_flags/set_flags
  * lt:added block_uploaded_alert to allow client to track upload activity
  * lt:fix inconsistency in file_priorities and override_resume_data behavior
  * lt:remove call _strchr (optimization)
  * lt:fix bandwidth rate limit calculation
  * lt:fix handling of SSL listen sockets
  * lt:don't move listen_socket_t when deleting sockets
  * lt:avoid executing timed async task if the dht node is already removed
  * lt:reject DHT put messages with incorrect bencoding
  * lt:fix backwards compatibility issue when loading the torrent info dict
      from resume data
  * lt:fix regression where paused torrents could not have their queue
      position changed
  * lt:use netlink to enumerate network interfaces on linux
  * lt:fix out-of-bounds read in bdecode
  * lt:fix re-check issue after move_storage
  * lt:avoid runtime fail with wrong arguments in upnp::update_map
  * lt:handle invalid arguments to set_piece_deadline()
  * lt:fix that move_storage did not work for torrents without metadata
  * lt:fix check for fully allocated file on windows
  * lt:defer reconnecting peers to after the second_tick loop
  * lt:implemented support for BEP 51
  * lt:source code cleanup and stability

1.2.0.10

  * added swig interface to announce_endpoint

1.2.0.9

  * updated to OpenSSL 1.1.0f
  * updated to boost 1.64
  * using android NDK r15
  * avoid automatic UTF-8 conversion in JNI side when using string_view
  * lt:fix bandwidth rate limit calculation
  * lt:fix for what appears to be an clang/llvm miscompilation
  * lt:only listen on preferred IPv6 addresses on Windows
  * lt:when stopping a torrent, never perform a name lookup on the tracker,
      only announce to trackers whose IP we already know. This is expected to
      make shutdowns not hang
  * lt:fix previously faulty fix to enum_routes
  * lt:delay 5 seconds before reconnecting socks5 proxy for UDP ASSOCIATE
  * lt:fix NAT-PMP crash when removing a mapping at the wrong time
  * lt:fix race condition in storage tick handling in disk_io_thread
  * lt:keep iterating over endpoints if one is found to be done in
      tracker announce loop
  * lt:don't abort the existing torrent when attempting to add it again
  * lt:fix IPv6 UTP assertion failure, close listen sockets after closing
      all connections
  * lt:fix branch factor overflow in DHT traversal algorithm
  * lt:bind upnp requests to correct local address
  * lt:don't combine reuseaddr and exclusive addruse on windows
  * lt:save resume data when removing web seeds
  * lt:fix proxying of https connections
  * lt:fix race condition in disk I/O storage class
  * lt:avoid extra sha1_hash memory copy in create_torrent
  * lt:fix http connection timeout on multi-homed hosts
  * lt:implemented multi-home support
  * lt:make DHT bootstrapping more robust by not throwing away nodes
  * lt:need_save_resume_data() will no longer return true every 15 minutes
  * lt:create a separate DHT node for each listen socket
  * lt:avoid connections to trackers when the event is stopped and
      stop_tracker_timeout <= 0
  * lt:fix storage destruction order issue
  * lt:fix memory leak in the disk cache
  * lt:magnet links: unescape hash parameter
  * lt:fix double free in disk cache
  * lt:fix typo in natpmp::start
  * lt:remove mutex-release hack in file_pool
  * lt:source code cleanup and stability

1.2.0.8

  * fixed synchronization issues in SessionManager#stop

1.2.0.7

  * added support for ip_notifier in macOS
  * added resolver_cache_timeout setting for internal host name resolver
  * improved public API
  * internal fixes in libtorrent

1.2.0.7-RC3

  * start of changelog