4 See also this page @ref{Новости, on russian}.
11 Fixed segfault in @command{nncp-daemon} when SP handshake did not succeed.
14 Fixed possible bad return code ignoring in automatic tosser.
17 Kill all packet transmission progress bars in @command{nncp-daemon},
18 @command{nncp-call} and @command{nncp-caller} when call is finished.
23 @section Release 6.4.0
27 Fixed possible race in online protocol, that lead to panic.
32 @section Release 6.3.0
36 Fixed possible panic while showing progress during online protocol.
41 @section Release 6.2.1
45 Three places in logs contained excess @code{%s}.
50 @section Release 6.2.0
54 Returned @command{nncp-caller}'s @option{-autotoss*} options workability.
57 Yet another logging refactoring and simplification.
58 Should be no visible differences to the end user.
63 @section Release 6.1.0
67 Optimization: most commands do not keep opened file descriptors now.
68 Previously you can exceed maximal number of opened files if you have got
69 many packets in the spool directory.
72 Optimization: do not close file descriptor of the file we download
73 online. Previously each chunk lead to expensive open/close calls.
76 Online downloaded files are saved with @file{.nock} (non-checksummed)
77 suffix, waiting either for @command{nncp-check}, or online daemons to
78 perform integrity check.
81 Optimization: files, that are not resumed, are checksummed immediately
82 during the online download, skipping @file{.nock}-intermediate step.
85 Ability to store encrypted packet's header in @file{.hdr} file, close to
86 the packet itself. That can greatly increase performance of packets
87 listing on filesystems with big block's size.
92 @section Release 6.0.0
96 Log uses human readable and easy machine parseable
97 @url{https://www.gnu.org/software/recutils/, recfile} format for the
98 records, instead of structured RFC 3339 lines. Old logs are not readable
99 by @command{nncp-log} anymore.
102 @option{-autotoss*} option workability with @command{nncp-daemon}'s
103 @option{-inetd} mode.
106 Call's @option{when-tx-exists} allows to make a call only when outbound
107 packets exists. Combined with seconds-aware cron expression that can be
108 used as some kind of auto dialler.
111 @command{nncp-cronexpr} command allows you to check validity and
112 expectations of specified cron expression.
117 @section Release 5.6.0
121 @option{-autotoss*} option runs tosser not after the call, but every
122 second while it is active.
125 @option{autotoss}, @option{autotoss-doseen},
126 @option{autotoss-nofile}, @option{autotoss-nofreq},
127 @option{autotoss-noexec}, @option{autotoss-notrns} options available in
128 @option{calls} configuration section. You can configure per-call
129 automatic tosser options.
132 Use vendoring, instead of @env{GOPATH} overriding during tarball
133 installation, because current minimal Go's version is 1.12 and it
139 @section Release 5.5.1
143 Respect for @env{BINDIR}, @env{INFODIR} and @env{DOCDIR} environment
144 variables in @file{config} during installation.
149 @section Release 5.5.0
153 Bugfixes in @command{nncp-call(er)}/@command{nncp-daemon},
154 @command{nncp-bundle} and @command{nncp-stat}.
157 @command{nncp-rm} has @option{-dryrun} and @option{-older} options now.
160 @command{nncp-exec} has @option{-use-tmp} and @option{-nocompress}
161 options now. Uncompressed packets are not compatible with previous NNCP
165 @command{nncp-call}, @command{nncp-caller} and @command{nncp-daemon} commands
166 have @option{-autotoss*} options for running tosser after call is ended.
169 Updated dependencies. Minimal required Go version is 1.12.
174 @section Release 5.4.1
178 Fixed @code{SENDMAIL} variable usage during the build.
183 @section Release 5.4.0
187 Updated dependencies.
190 Build system is moved from Makefiles to @url{http://cr.yp.to/redo.html, redo}.
191 This should not influence package maintainers, because minimal @command{redo}
192 implementation is included in tarball.
197 @section Release 5.3.3
201 More various error checks.
204 Updated dependencies.
209 @section Release 5.3.2
213 Fixed incorrect logic of @option{onlinedeadline} timeout, where
214 connection won't take into account incoming packets events and will
215 forcefully disconnect.
220 @section Release 5.3.1
224 Fixed @option{onlinedeadline} workability with call addresses that use
225 external commands (@verb{#"|somecmd"#}).
228 @command{nncp-stat} has @option{-pkt} option displaying information
229 about each packet in the spool.
234 @section Release 5.3.0
238 Progress messages contain prefix, describing the running action.
241 Fixed not occurring handshake messages padding.
244 Finish all SP protocol related goroutines, less memory leak.
247 SP protocol generates less socket write calls, thus generating less TCP
251 Check @option{onlinedeadline} and @option{maxonlinetime} options every
252 second, independently from socket reads (up to 10 seconds).
255 Once per minute, if no other traffic exists, PING packets are sent in
256 SP-connection. That allows faster determining of connection unworkability.
259 @command{nncp-toss} uses lock-file to prevent simultaneous tossing.
264 @section Release 5.2.1
268 Fixed SP protocol error handling, sometimes causing program panic.
273 @section Release 5.2.0
277 Most commands by default show oneline operations progress.
278 @option{-progress}, @option{-noprogress} command line options,
279 @option{noprogress} configuration file option appeared.
282 Fixed incorrect @command{nncp-check} command return code, that returned
283 bad code when everything is good.
286 Free disk space check during @command{nncp-bundle -rx} call.
291 @section Release 5.1.2
295 @strong{Critical} vulnerability: remote peers authentication could lead
296 to incorrect identification of remote side, allowing foreign encrypted
300 Bugfix: private and public Noise keys were swapped in newly created
301 configuration files, that lead to inability to authenticate online peers.
304 Explicit directories fsync-ing for guaranteed files renaming.
309 @section Release 5.1.1
313 Fixed workability of @command{nncp-file} with @option{-chunked 0} option.
318 @section Release 5.1.0
322 @command{nncp-file} can send directories, automatically creating pax
326 Free disk space is checked during outbound packets creation.
329 @option{freq}, @option{freqminsize}, @option{freqchunked} configuration
330 file options replaced with the structure:
331 @option{freq: @{path: ..., minsize: ..., chunked: ...@}}.
334 Added @option{freq.maxsize} configuration file option, forbidding of
335 freq sending larger than specified size.
338 Ability to notify about successfully executed commands (exec) with
339 @option{notify.exec} configuration file option.
344 @section Release 5.0.0
348 @strong{Incompatible} configuration file format change: YAML is
349 replaced with Hjson, due to its simplicity, without noticeable lack
350 of either functionality or convenience.
353 @strong{Incompatible} plain packet format changes. Older versions are
354 not supported. @code{zlib} compression is replaced with
355 @code{Zstandard}, due to its speed and efficiency, despite library
356 version is not mature enough.
359 Ability to call remote nodes via pipe call of external command, not only
363 @command{nncp-cfgnew} generates configuration file with many
364 comments. @option{-nocomments} option can be used for an old
368 Duplicate filenames have @file{.CTR} suffix, instead of @file{CTR}, to
369 avoid possible collisions with @file{.nncp.chunkCTR}.
372 Ability to override process umask through configuration file option.
375 Files and directories are created with 666/777 permissions by default,
376 allowing control with @command{umask}.
379 Updated dependencies.
382 Full usage of go modules for dependencies management
383 (@code{go.cypherpunks.ru/nncp/v5} namespace is used).
386 Forbid any later GNU GPL version autousage
387 (project's licence now is GNU GPLv3-only).
394 @item Workability on GNU/Linux systems and Go 1.10 is fixed.
402 @strong{Incompatible} encrypted and eblob packet format change: AEAD
403 encryption mode with 128 KiB blocks is used now, because previously
404 @command{nncp-toss} did not verify encrypted packet's MAC before feeding
405 decrypted data to external command. Older versions are not supported.
408 Available free space checking before copying in @command{nncp-xfer},
409 @command{nncp-daemon}, @command{nncp-call(er)}.
412 @command{nncp-call} has ability only to list packets on remote node,
413 without their transmission.
416 @command{nncp-call} has ability to transfer only specified packets.
419 Workability of @option{xxrate} preference in @option{calls}
420 configuration file section.
423 Dependant libraries are updated.
429 Begin using of @code{go.mod} subsystem.
436 @item @command{nncp-daemon} can be run as @command{inetd}-service.
444 @command{nncp-daemon}, @command{nncp-call}, @command{nncp-caller} check
445 if @file{.seen} exists and treat it like file was already downloaded.
446 Possibly it was transferred out-of-bound and remote side needs to be
450 If higher priority packet is spooled, then @command{nncp-daemon} will
451 queue its sending first, interrupting lower priority transmissions.
454 Simple packet rate limiter added to online-related tools
455 (@command{nncp-daemon}, @command{nncp-call}, @command{nncp-caller}).
458 Ability to specify niceness with symbolic notation:
459 @verb{|NORMAL|}, @verb{|BULK+10|}, @verb{|PRIORITY-5|}, etc.
462 Changed default niceness levels:
463 for @command{nncp-exec} from 64 to 96,
464 for @command{nncp-freq} from 64 to 160,
465 for @command{nncp-file} from 196 to 224.
473 @strong{Incompatible} @emph{bundle} archive format changes and
474 @command{nncp-bundle} workability with Go 1.10+. Bundles must be
475 valid tar archives, but Go 1.9 made them invalid because of long paths
476 inside. NNCP accidentally was dependant on that bug. Explicit adding of
477 @file{NNCP/} directory in archive restores workability with valid tar
485 Ability to disable relaying at all using @verb{|-via -|} command line option.
493 @strong{Incompatible} plain packet format changes. Older versions are
497 Ability to queue remote command execution, by configuring @option{exec}
498 option in configuration file and using @command{nncp-exec} command:
501 @command{nncp-mail} command is replaced with more flexible
502 @command{nncp-exec}. Instead of @verb{|nncp-mail NODE RECIPIENT|}
503 you must use @verb{|nncp-exec NODE sendmail RECIPIENT|}.
505 @option{sendmail} configuration file option is replaced with
506 @option{exec}. @verb{|sendmail: [...]|} must be replaced with
507 @verb{|exec: sendmail: [...]|}.
511 Ability to override @option{via} configuration option for destination
512 node via @option{-via} command line option for following commands:
513 @command{nncp-file}, @command{nncp-freq}, @command{nncp-exec}.
516 Chunked files, having size less than specified chunk size, will be sent
517 as an ordinary single file.
520 Exec commands are invoked with additional @env{NNCP_NICE} and
521 @env{NNCP_SELF} environment variables.
524 Files, that are sent as a reply to freq, have niceness level taken from
525 the freq packet. You can set desired niceness during @command{nncp-freq}
526 invocation using @option{-replynice} option.
529 @command{nncp-toss} command can ignore specified packet types during
530 processing: @option{-nofile}, @option{-nofreq}, @option{-noexec},
534 @command{nncp-file} command uses
535 @option{FreqMinSize}/@option{FreqChunked} configuration file options
536 for @option{-minsize}/@option{-chunked} by default. You can turn this
537 off by specifying zero value.
546 @strong{Incompatible} encrypted/eblob packet format changes. Older
547 versions are not supported.
550 Twofish encryption algorithm is replaced with ChaCha20. It is much more
551 faster. One cryptographic primitive less.
554 HKDF-BLAKE2b-256 KDF algorithm is replaced with BLAKE2Xb XOF. Yet
555 another cryptographic primitive less (assuming that BLAKE2X is nearly
556 identical to BLAKE2).
565 @strong{Incompatible} encrypted packet format changes. Older versions
569 @command{nncp-bundle} command can either create stream of encrypted
570 packets, or digest it. It is useful when dealing with
571 @code{stdin}/@code{stdout} based transmission methods (like writing to
572 CD-ROM without intermediate prepared ISO image and working with tape
576 @command{nncp-toss} is able to create @file{.seen} files preventing
577 duplicate packets receiving.
580 Single background checksum verifier worker is allowed in
581 @command{nncp-call}. This is helpful when thousands of small inbound
582 packets could create many goroutines.
585 Ability to override path to spool directory and logfile through either
586 command line argument, or environment variable.
589 @command{nncp-rm} is able to delete outbound/inbound, @file{.seen},
590 @file{.part}, @file{.lock} and temporary files.
595 @section Release 0.12
597 @item Sendmail command is called with @env{NNCP_SENDER} environment variable.
601 @section Release 0.11
603 @item @command{nncp-stat}'s command output is sorted by node name.
607 @section Release 0.10
610 @command{nncp-freq}'s @file{DST} argument is optional now. Last
611 @file{SRC} path's element will be used by default.
618 Fix @option{-rx}/@option{-tx} arguments processing in
619 @command{nncp-call} command. They were ignored.
626 Little bugfix in @command{nncp-file} command, where @option{-minsize}
627 option for unchunked transfer was not in KiBs, but in bytes.
635 Ability to feed @command{nncp-file} from @code{stdin}, that uses an
636 encrypted temporary file for that.
639 Chunked files transmission appeared with corresponding
640 @command{nncp-reass} command and @option{freqchunked} configuration file
641 entry. Useful for transferring big files over small storage devices.
644 @option{freqminsize} configuration file option, analogue to
645 @option{-minsize} one.
648 @command{nncp-xfer}'s @option{-force} option is renamed to
649 @option{-mkdir} for clarity.
652 @option{-minsize} option is specified in KiBs, not bytes, for
656 @command{nncp-newcfg} command is renamed to @command{nncp-cfgnew},
657 and @command{nncp-mincfg} to @command{nncp-cfgmin} -- now they have
658 common prefix and are grouped together for convenience.
661 @command{nncp-cfgenc} command appeared, allowing configuration file
662 encryption/decryption, for keeping it safe without any either OpenPGP or
666 Cryptographic libraries (dependencies) are updated.
673 @item Small @command{nncp-rm} command appeared.
674 @item Cryptographic libraries (dependencies) are updated.
681 Trivial small fix in default niceness level of @command{nncp-file}
682 and @command{nncp-freq} commands.
690 Small fix in @command{nncp-call}, @command{nncp-caller},
691 @command{nncp-daemon}: they can segmentation fail sometimes (no data is
695 @command{nncp-newnode} renamed to @command{nncp-newcfg} -- it is shorter
696 and more convenient to use.
699 @command{nncp-mincfg} command appeared: helper allowing to create
700 minimalistic stripped down configuration file without private keys, that
701 is useful during @command{nncp-xfer} usage.
708 @item Fixed compatibility with Go 1.6.
716 @strong{Incompatible} packet's format change (magic number is changed
717 too): size field is encrypted and is not send in plaintext anymore.
720 @option{-minsize} option gives ability to automatically pad outgoing
721 packets to specified minimal size.
724 @command{nncp-daemon} and @command{nncp-call}/@command{nncp-caller}
725 always check new @emph{tx} packets appearance in the background while
726 connected. Remote side is immediately notified.
729 @option{-onlinedeadline} option gives ability to configure timeout of
730 inactivity of online connection, when it could be disconnected. It could
731 be used to keep connection alive for a long time.
734 @option{-maxonlinetime} option gives ability to set maximal allowable
735 online connection aliveness time.
738 @command{nncp-caller} command appeared: cron-ed TCP daemon caller.
741 @command{nncp-pkt} command can decompress the data.