4 See also this page @ref{Новости, on russian}.
11 Fixed segfault in @command{nncp-daemon} when SP handshake did not succeed.
16 @section Release 6.4.0
20 Fixed possible race in online protocol, that lead to panic.
25 @section Release 6.3.0
29 Fixed possible panic while showing progress during online protocol.
34 @section Release 6.2.1
38 Three places in logs contained excess @code{%s}.
43 @section Release 6.2.0
47 Returned @command{nncp-caller}'s @option{-autotoss*} options workability.
50 Yet another logging refactoring and simplification.
51 Should be no visible differences to the end user.
56 @section Release 6.1.0
60 Optimization: most commands do not keep opened file descriptors now.
61 Previously you can exceed maximal number of opened files if you have got
62 many packets in the spool directory.
65 Optimization: do not close file descriptor of the file we download
66 online. Previously each chunk lead to expensive open/close calls.
69 Online downloaded files are saved with @file{.nock} (non-checksummed)
70 suffix, waiting either for @command{nncp-check}, or online daemons to
71 perform integrity check.
74 Optimization: files, that are not resumed, are checksummed immediately
75 during the online download, skipping @file{.nock}-intermediate step.
78 Ability to store encrypted packet's header in @file{.hdr} file, close to
79 the packet itself. That can greatly increase performance of packets
80 listing on filesystems with big block's size.
85 @section Release 6.0.0
89 Log uses human readable and easy machine parseable
90 @url{https://www.gnu.org/software/recutils/, recfile} format for the
91 records, instead of structured RFC 3339 lines. Old logs are not readable
92 by @command{nncp-log} anymore.
95 @option{-autotoss*} option workability with @command{nncp-daemon}'s
99 Call's @option{when-tx-exists} allows to make a call only when outbound
100 packets exists. Combined with seconds-aware cron expression that can be
101 used as some kind of auto dialler.
104 @command{nncp-cronexpr} command allows you to check validity and
105 expectations of specified cron expression.
110 @section Release 5.6.0
114 @option{-autotoss*} option runs tosser not after the call, but every
115 second while it is active.
118 @option{autotoss}, @option{autotoss-doseen},
119 @option{autotoss-nofile}, @option{autotoss-nofreq},
120 @option{autotoss-noexec}, @option{autotoss-notrns} options available in
121 @option{calls} configuration section. You can configure per-call
122 automatic tosser options.
125 Use vendoring, instead of @env{GOPATH} overriding during tarball
126 installation, because current minimal Go's version is 1.12 and it
132 @section Release 5.5.1
136 Respect for @env{BINDIR}, @env{INFODIR} and @env{DOCDIR} environment
137 variables in @file{config} during installation.
142 @section Release 5.5.0
146 Bugfixes in @command{nncp-call(er)}/@command{nncp-daemon},
147 @command{nncp-bundle} and @command{nncp-stat}.
150 @command{nncp-rm} has @option{-dryrun} and @option{-older} options now.
153 @command{nncp-exec} has @option{-use-tmp} and @option{-nocompress}
154 options now. Uncompressed packets are not compatible with previous NNCP
158 @command{nncp-call}, @command{nncp-caller} and @command{nncp-daemon} commands
159 have @option{-autotoss*} options for running tosser after call is ended.
162 Updated dependencies. Minimal required Go version is 1.12.
167 @section Release 5.4.1
171 Fixed @code{SENDMAIL} variable usage during the build.
176 @section Release 5.4.0
180 Updated dependencies.
183 Build system is moved from Makefiles to @url{http://cr.yp.to/redo.html, redo}.
184 This should not influence package maintainers, because minimal @command{redo}
185 implementation is included in tarball.
190 @section Release 5.3.3
194 More various error checks.
197 Updated dependencies.
202 @section Release 5.3.2
206 Fixed incorrect logic of @option{onlinedeadline} timeout, where
207 connection won't take into account incoming packets events and will
208 forcefully disconnect.
213 @section Release 5.3.1
217 Fixed @option{onlinedeadline} workability with call addresses that use
218 external commands (@verb{#"|somecmd"#}).
221 @command{nncp-stat} has @option{-pkt} option displaying information
222 about each packet in the spool.
227 @section Release 5.3.0
231 Progress messages contain prefix, describing the running action.
234 Fixed not occurring handshake messages padding.
237 Finish all SP protocol related goroutines, less memory leak.
240 SP protocol generates less socket write calls, thus generating less TCP
244 Check @option{onlinedeadline} and @option{maxonlinetime} options every
245 second, independently from socket reads (up to 10 seconds).
248 Once per minute, if no other traffic exists, PING packets are sent in
249 SP-connection. That allows faster determining of connection unworkability.
252 @command{nncp-toss} uses lock-file to prevent simultaneous tossing.
257 @section Release 5.2.1
261 Fixed SP protocol error handling, sometimes causing program panic.
266 @section Release 5.2.0
270 Most commands by default show oneline operations progress.
271 @option{-progress}, @option{-noprogress} command line options,
272 @option{noprogress} configuration file option appeared.
275 Fixed incorrect @command{nncp-check} command return code, that returned
276 bad code when everything is good.
279 Free disk space check during @command{nncp-bundle -rx} call.
284 @section Release 5.1.2
288 @strong{Critical} vulnerability: remote peers authentication could lead
289 to incorrect identification of remote side, allowing foreign encrypted
293 Bugfix: private and public Noise keys were swapped in newly created
294 configuration files, that lead to inability to authenticate online peers.
297 Explicit directories fsync-ing for guaranteed files renaming.
302 @section Release 5.1.1
306 Fixed workability of @command{nncp-file} with @option{-chunked 0} option.
311 @section Release 5.1.0
315 @command{nncp-file} can send directories, automatically creating pax
319 Free disk space is checked during outbound packets creation.
322 @option{freq}, @option{freqminsize}, @option{freqchunked} configuration
323 file options replaced with the structure:
324 @option{freq: @{path: ..., minsize: ..., chunked: ...@}}.
327 Added @option{freq.maxsize} configuration file option, forbidding of
328 freq sending larger than specified size.
331 Ability to notify about successfully executed commands (exec) with
332 @option{notify.exec} configuration file option.
337 @section Release 5.0.0
341 @strong{Incompatible} configuration file format change: YAML is
342 replaced with Hjson, due to its simplicity, without noticeable lack
343 of either functionality or convenience.
346 @strong{Incompatible} plain packet format changes. Older versions are
347 not supported. @code{zlib} compression is replaced with
348 @code{Zstandard}, due to its speed and efficiency, despite library
349 version is not mature enough.
352 Ability to call remote nodes via pipe call of external command, not only
356 @command{nncp-cfgnew} generates configuration file with many
357 comments. @option{-nocomments} option can be used for an old
361 Duplicate filenames have @file{.CTR} suffix, instead of @file{CTR}, to
362 avoid possible collisions with @file{.nncp.chunkCTR}.
365 Ability to override process umask through configuration file option.
368 Files and directories are created with 666/777 permissions by default,
369 allowing control with @command{umask}.
372 Updated dependencies.
375 Full usage of go modules for dependencies management
376 (@code{go.cypherpunks.ru/nncp/v5} namespace is used).
379 Forbid any later GNU GPL version autousage
380 (project's licence now is GNU GPLv3-only).
387 @item Workability on GNU/Linux systems and Go 1.10 is fixed.
395 @strong{Incompatible} encrypted and eblob packet format change: AEAD
396 encryption mode with 128 KiB blocks is used now, because previously
397 @command{nncp-toss} did not verify encrypted packet's MAC before feeding
398 decrypted data to external command. Older versions are not supported.
401 Available free space checking before copying in @command{nncp-xfer},
402 @command{nncp-daemon}, @command{nncp-call(er)}.
405 @command{nncp-call} has ability only to list packets on remote node,
406 without their transmission.
409 @command{nncp-call} has ability to transfer only specified packets.
412 Workability of @option{xxrate} preference in @option{calls}
413 configuration file section.
416 Dependant libraries are updated.
422 Begin using of @code{go.mod} subsystem.
429 @item @command{nncp-daemon} can be run as @command{inetd}-service.
437 @command{nncp-daemon}, @command{nncp-call}, @command{nncp-caller} check
438 if @file{.seen} exists and treat it like file was already downloaded.
439 Possibly it was transferred out-of-bound and remote side needs to be
443 If higher priority packet is spooled, then @command{nncp-daemon} will
444 queue its sending first, interrupting lower priority transmissions.
447 Simple packet rate limiter added to online-related tools
448 (@command{nncp-daemon}, @command{nncp-call}, @command{nncp-caller}).
451 Ability to specify niceness with symbolic notation:
452 @verb{|NORMAL|}, @verb{|BULK+10|}, @verb{|PRIORITY-5|}, etc.
455 Changed default niceness levels:
456 for @command{nncp-exec} from 64 to 96,
457 for @command{nncp-freq} from 64 to 160,
458 for @command{nncp-file} from 196 to 224.
466 @strong{Incompatible} @emph{bundle} archive format changes and
467 @command{nncp-bundle} workability with Go 1.10+. Bundles must be
468 valid tar archives, but Go 1.9 made them invalid because of long paths
469 inside. NNCP accidentally was dependant on that bug. Explicit adding of
470 @file{NNCP/} directory in archive restores workability with valid tar
478 Ability to disable relaying at all using @verb{|-via -|} command line option.
486 @strong{Incompatible} plain packet format changes. Older versions are
490 Ability to queue remote command execution, by configuring @option{exec}
491 option in configuration file and using @command{nncp-exec} command:
494 @command{nncp-mail} command is replaced with more flexible
495 @command{nncp-exec}. Instead of @verb{|nncp-mail NODE RECIPIENT|}
496 you must use @verb{|nncp-exec NODE sendmail RECIPIENT|}.
498 @option{sendmail} configuration file option is replaced with
499 @option{exec}. @verb{|sendmail: [...]|} must be replaced with
500 @verb{|exec: sendmail: [...]|}.
504 Ability to override @option{via} configuration option for destination
505 node via @option{-via} command line option for following commands:
506 @command{nncp-file}, @command{nncp-freq}, @command{nncp-exec}.
509 Chunked files, having size less than specified chunk size, will be sent
510 as an ordinary single file.
513 Exec commands are invoked with additional @env{NNCP_NICE} and
514 @env{NNCP_SELF} environment variables.
517 Files, that are sent as a reply to freq, have niceness level taken from
518 the freq packet. You can set desired niceness during @command{nncp-freq}
519 invocation using @option{-replynice} option.
522 @command{nncp-toss} command can ignore specified packet types during
523 processing: @option{-nofile}, @option{-nofreq}, @option{-noexec},
527 @command{nncp-file} command uses
528 @option{FreqMinSize}/@option{FreqChunked} configuration file options
529 for @option{-minsize}/@option{-chunked} by default. You can turn this
530 off by specifying zero value.
539 @strong{Incompatible} encrypted/eblob packet format changes. Older
540 versions are not supported.
543 Twofish encryption algorithm is replaced with ChaCha20. It is much more
544 faster. One cryptographic primitive less.
547 HKDF-BLAKE2b-256 KDF algorithm is replaced with BLAKE2Xb XOF. Yet
548 another cryptographic primitive less (assuming that BLAKE2X is nearly
549 identical to BLAKE2).
558 @strong{Incompatible} encrypted packet format changes. Older versions
562 @command{nncp-bundle} command can either create stream of encrypted
563 packets, or digest it. It is useful when dealing with
564 @code{stdin}/@code{stdout} based transmission methods (like writing to
565 CD-ROM without intermediate prepared ISO image and working with tape
569 @command{nncp-toss} is able to create @file{.seen} files preventing
570 duplicate packets receiving.
573 Single background checksum verifier worker is allowed in
574 @command{nncp-call}. This is helpful when thousands of small inbound
575 packets could create many goroutines.
578 Ability to override path to spool directory and logfile through either
579 command line argument, or environment variable.
582 @command{nncp-rm} is able to delete outbound/inbound, @file{.seen},
583 @file{.part}, @file{.lock} and temporary files.
588 @section Release 0.12
590 @item Sendmail command is called with @env{NNCP_SENDER} environment variable.
594 @section Release 0.11
596 @item @command{nncp-stat}'s command output is sorted by node name.
600 @section Release 0.10
603 @command{nncp-freq}'s @file{DST} argument is optional now. Last
604 @file{SRC} path's element will be used by default.
611 Fix @option{-rx}/@option{-tx} arguments processing in
612 @command{nncp-call} command. They were ignored.
619 Little bugfix in @command{nncp-file} command, where @option{-minsize}
620 option for unchunked transfer was not in KiBs, but in bytes.
628 Ability to feed @command{nncp-file} from @code{stdin}, that uses an
629 encrypted temporary file for that.
632 Chunked files transmission appeared with corresponding
633 @command{nncp-reass} command and @option{freqchunked} configuration file
634 entry. Useful for transferring big files over small storage devices.
637 @option{freqminsize} configuration file option, analogue to
638 @option{-minsize} one.
641 @command{nncp-xfer}'s @option{-force} option is renamed to
642 @option{-mkdir} for clarity.
645 @option{-minsize} option is specified in KiBs, not bytes, for
649 @command{nncp-newcfg} command is renamed to @command{nncp-cfgnew},
650 and @command{nncp-mincfg} to @command{nncp-cfgmin} -- now they have
651 common prefix and are grouped together for convenience.
654 @command{nncp-cfgenc} command appeared, allowing configuration file
655 encryption/decryption, for keeping it safe without any either OpenPGP or
659 Cryptographic libraries (dependencies) are updated.
666 @item Small @command{nncp-rm} command appeared.
667 @item Cryptographic libraries (dependencies) are updated.
674 Trivial small fix in default niceness level of @command{nncp-file}
675 and @command{nncp-freq} commands.
683 Small fix in @command{nncp-call}, @command{nncp-caller},
684 @command{nncp-daemon}: they can segmentation fail sometimes (no data is
688 @command{nncp-newnode} renamed to @command{nncp-newcfg} -- it is shorter
689 and more convenient to use.
692 @command{nncp-mincfg} command appeared: helper allowing to create
693 minimalistic stripped down configuration file without private keys, that
694 is useful during @command{nncp-xfer} usage.
701 @item Fixed compatibility with Go 1.6.
709 @strong{Incompatible} packet's format change (magic number is changed
710 too): size field is encrypted and is not send in plaintext anymore.
713 @option{-minsize} option gives ability to automatically pad outgoing
714 packets to specified minimal size.
717 @command{nncp-daemon} and @command{nncp-call}/@command{nncp-caller}
718 always check new @emph{tx} packets appearance in the background while
719 connected. Remote side is immediately notified.
722 @option{-onlinedeadline} option gives ability to configure timeout of
723 inactivity of online connection, when it could be disconnected. It could
724 be used to keep connection alive for a long time.
727 @option{-maxonlinetime} option gives ability to set maximal allowable
728 online connection aliveness time.
731 @command{nncp-caller} command appeared: cron-ed TCP daemon caller.
734 @command{nncp-pkt} command can decompress the data.