4 See also this page @ref{Новости, on russian}.
7 * Release 7.3.0: Release 7_3_0.
8 * Release 7.2.1: Release 7_2_1.
9 * Release 7.2.0: Release 7_2_0.
10 * Release 7.1.1: Release 7_1_1.
11 * Release 7.1.0: Release 7_1_0.
12 * Release 7.0.0: Release 7_0_0.
13 * Release 6.6.0: Release 6_6_0.
14 * Release 6.5.0: Release 6_5_0.
15 * Release 6.4.0: Release 6_4_0.
16 * Release 6.3.0: Release 6_3_0.
17 * Release 6.2.1: Release 6_2_1.
18 * Release 6.2.0: Release 6_2_0.
19 * Release 6.1.0: Release 6_1_0.
20 * Release 6.0.0: Release 6_0_0.
21 * Release 5.6.0: Release 5_6_0.
22 * Release 5.5.1: Release 5_5_1.
23 * Release 5.5.0: Release 5_5_0.
24 * Release 5.4.1: Release 5_4_1.
25 * Release 5.4.0: Release 5_4_0.
26 * Release 5.3.3: Release 5_3_3.
27 * Release 5.3.2: Release 5_3_2.
28 * Release 5.3.1: Release 5_3_1.
29 * Release 5.3.0: Release 5_3_0.
30 * Release 5.2.1: Release 5_2_1.
31 * Release 5.2.0: Release 5_2_0.
32 * Release 5.1.2: Release 5_1_2.
33 * Release 5.1.1: Release 5_1_1.
34 * Release 5.1.0: Release 5_1_0.
35 * Release 5.0.0: Release 5_0_0.
36 * Release 4.1: Release 4_1.
37 * Release 4.0: Release 4_0.
38 * Release 3.4: Release 3_4.
39 * Release 3.3: Release 3_3.
40 * Release 3.2: Release 3_2.
41 * Release 3.1: Release 3_1.
42 * Release 3.0: Release 3_0.
43 * Release 2.0: Release 2_0.
44 * Release 1.0: Release 1_0.
45 * Release 0.12: Release 0_12.
46 * Release 0.11: Release 0_11.
47 * Release 0.10: Release 0_10.
48 * Release 0.9: Release 0_9.
49 * Release 0.8: Release 0_8.
50 * Release 0.7: Release 0_7.
51 * Release 0.6: Release 0_6.
52 * Release 0.5: Release 0_5.
53 * Release 0.4: Release 0_4.
54 * Release 0.3: Release 0_3.
55 * Release 0.2: Release 0_2.
59 @section Release 7.3.0
63 Fixed some workability problems on 32-bit systems with big files.
66 Ability to use directory with a bunch of files as a configuration.
67 @command{nncp-cfgdir} command appeared.
72 @section Release 7.2.1
76 Small optimizations in online commands.
81 @section Release 7.2.0
85 @command{nncp-trns} command appeared for manual transition packets creation.
88 If destination node of transitional packet has non empty @option{via}
89 route, then do not ignore, but use it.
92 Do not relay multicast packet to area message's originator, that
93 obviously has seen its own packet.
96 Much less memory usage during MTH hashing when offset is zero: when
97 packet is not resumed, but for example checked with @command{nncp-check}
103 @section Release 7.1.1
107 Fixed failing directories fsync after @file{.seen} file creation.
112 @section Release 7.1.0
116 Multicasting areas feature appeared. Implemented merely by an additional
117 plain packet type with @command{nncp-toss}, @command{nncp-file} and
118 @command{nncp-exec} commands modification.
121 Fixed workability of @command{nncp-file} and @command{nncp-exec}
122 commands, that use temporary file (stdin and @option{-use-tmp}).
125 Fixed disappearing bad return code in @command{nncp-exec} command.
128 Fixed invalid @file{.hdr} generation when transitional packets are used.
131 @option{-all} option appeared in @command{nncp-rm} command, applying to
132 all the nodes at once.
135 @option{-cycle} option appeared in @command{nncp-check} command, looping
136 the check in infinite cycle.
139 @command{nncp-rm} command can take node alias name.
142 @command{nncp-pkt} can parse @file{.hdr} files.
147 @section Release 7.0.0
151 Minimal required Go version 1.13.
154 Merkle Tree-based Hashing with BLAKE3 (MTH) is used instead of BLAKE2b.
155 Because of that, there are backward @strong{incompatible} changes of
156 encrypted files (everything laying in the spool directory) and
157 @file{.meta} files of chunked transfer.
159 Current implementation is far from being optimal: it lacks
160 parallelizable calculations and has higher memory consumption: nearly
161 512 KiB for each 1 GiB of file's data. Future performance and memory
162 size optimizations should not lead to packet's format change. But it is
163 still several times faster than BLAKE2b.
166 Resumed online downloads, because of MTH, require reading only of the
167 preceding part of file, not the whole one as was before.
170 @command{nncp-hash} utility appeared for calculating file's MTH hash.
173 BLAKE2 KDF and XOF functions are replaced with BLAKE3 in encrypted
174 packets. Lowering number of used primitives. Also, its encrypted
175 packet's header is used as an associated data during encryption.
178 MultiCast Discovery uses
179 @verb{|ff02::4e4e:4350|} address instead of @verb{|ff02::1|}.
182 @command{nncp-cfgenc} mistakenly asked passphrase three times during encryption.
185 @command{nncp-stat} reports about partly downloaded packets.
188 Updated dependencies.
193 @section Release 6.6.0
197 @command{nncp-daemon}, @command{nncp-call} and @command{nncp-caller}
198 commands wait for all background checksummers completion after
199 connection is finished.
202 Added possibility of address determining through multicast announcement
203 in local area network, so called MCD (MultiCast Discovery).
208 @section Release 6.5.0
212 Fixed segfault in @command{nncp-daemon} when SP handshake did not succeed.
215 Fixed possible bad return code ignoring in automatic tosser.
218 Fixed race during file descriptors closing when online protocol call is
219 finished, that could lead to write error of received packet fragment.
222 Kill all packet transmission progress bars in @command{nncp-daemon},
223 @command{nncp-call} and @command{nncp-caller} when call is finished.
228 @section Release 6.4.0
232 Fixed possible race in online protocol, that lead to panic.
237 @section Release 6.3.0
241 Fixed possible panic while showing progress during online protocol.
246 @section Release 6.2.1
250 Three places in logs contained excess @code{%s}.
255 @section Release 6.2.0
259 Returned @command{nncp-caller}'s @option{-autotoss*} options workability.
262 Yet another logging refactoring and simplification.
263 Should be no visible differences to the end user.
268 @section Release 6.1.0
272 Optimization: most commands do not keep opened file descriptors now.
273 Previously you can exceed maximal number of opened files if you have got
274 many packets in the spool directory.
277 Optimization: do not close file descriptor of the file we download
278 online. Previously each chunk lead to expensive open/close calls.
281 Online downloaded files are saved with @file{.nock} (non-checksummed)
282 suffix, waiting either for @command{nncp-check}, or online daemons to
283 perform integrity check.
286 Optimization: files, that are not resumed, are checksummed immediately
287 during the online download, skipping @file{.nock}-intermediate step.
290 Ability to store encrypted packet's header in @file{.hdr} file, close to
291 the packet itself. That can greatly increase performance of packets
292 listing on filesystems with big block's size.
297 @section Release 6.0.0
301 Log uses human readable and easy machine parseable
302 @url{https://www.gnu.org/software/recutils/, recfile} format for the
303 records, instead of structured RFC 3339 lines. Old logs are not readable
304 by @command{nncp-log} anymore.
307 @option{-autotoss*} option workability with @command{nncp-daemon}'s
308 @option{-inetd} mode.
311 Call's @option{when-tx-exists} allows to make a call only when outbound
312 packets exists. Combined with seconds-aware cron expression that can be
313 used as some kind of auto dialler.
316 @command{nncp-cronexpr} command allows you to check validity and
317 expectations of specified cron expression.
322 @section Release 5.6.0
326 @option{-autotoss*} option runs tosser not after the call, but every
327 second while it is active.
330 @option{autotoss}, @option{autotoss-doseen},
331 @option{autotoss-nofile}, @option{autotoss-nofreq},
332 @option{autotoss-noexec}, @option{autotoss-notrns} options available in
333 @option{calls} configuration section. You can configure per-call
334 automatic tosser options.
337 Use vendoring, instead of @env{GOPATH} overriding during tarball
338 installation, because current minimal Go's version is 1.12 and it
344 @section Release 5.5.1
348 Respect for @env{BINDIR}, @env{INFODIR} and @env{DOCDIR} environment
349 variables in @file{config} during installation.
354 @section Release 5.5.0
358 Bugfixes in @command{nncp-call(er)}/@command{nncp-daemon},
359 @command{nncp-bundle} and @command{nncp-stat}.
362 @command{nncp-rm} has @option{-dryrun} and @option{-older} options now.
365 @command{nncp-exec} has @option{-use-tmp} and @option{-nocompress}
366 options now. Uncompressed packets are not compatible with previous NNCP
370 @command{nncp-call}, @command{nncp-caller} and @command{nncp-daemon} commands
371 have @option{-autotoss*} options for running tosser after call is ended.
374 Updated dependencies. Minimal required Go version is 1.12.
379 @section Release 5.4.1
383 Fixed @code{SENDMAIL} variable usage during the build.
388 @section Release 5.4.0
392 Updated dependencies.
395 Build system is moved from Makefiles to @url{http://cr.yp.to/redo.html, redo}.
396 This should not influence package maintainers, because minimal @command{redo}
397 implementation is included in tarball.
402 @section Release 5.3.3
406 More various error checks.
409 Updated dependencies.
414 @section Release 5.3.2
418 Fixed incorrect logic of @option{onlinedeadline} timeout, where
419 connection won't take into account incoming packets events and will
420 forcefully disconnect.
425 @section Release 5.3.1
429 Fixed @option{onlinedeadline} workability with call addresses that use
430 external commands (@verb{#"|somecmd"#}).
433 @command{nncp-stat} has @option{-pkt} option displaying information
434 about each packet in the spool.
439 @section Release 5.3.0
443 Progress messages contain prefix, describing the running action.
446 Fixed not occurring handshake messages padding.
449 Finish all SP protocol related goroutines, less memory leak.
452 SP protocol generates less socket write calls, thus generating less TCP
456 Check @option{onlinedeadline} and @option{maxonlinetime} options every
457 second, independently from socket reads (up to 10 seconds).
460 Once per minute, if no other traffic exists, PING packets are sent in
461 SP-connection. That allows faster determining of connection unworkability.
464 @command{nncp-toss} uses lock-file to prevent simultaneous tossing.
469 @section Release 5.2.1
473 Fixed SP protocol error handling, sometimes causing program panic.
478 @section Release 5.2.0
482 Most commands by default show oneline operations progress.
483 @option{-progress}, @option{-noprogress} command line options,
484 @option{noprogress} configuration file option appeared.
487 Fixed incorrect @command{nncp-check} command return code, that returned
488 bad code when everything is good.
491 Free disk space check during @command{nncp-bundle -rx} call.
496 @section Release 5.1.2
500 @strong{Critical} vulnerability: remote peers authentication could lead
501 to incorrect identification of remote side, allowing foreign encrypted
505 Bugfix: private and public Noise keys were swapped in newly created
506 configuration files, that lead to inability to authenticate online peers.
509 Explicit directories fsync-ing for guaranteed files renaming.
514 @section Release 5.1.1
518 Fixed workability of @command{nncp-file} with @option{-chunked 0} option.
523 @section Release 5.1.0
527 @command{nncp-file} can send directories, automatically creating pax
531 Free disk space is checked during outbound packets creation.
534 @option{freq}, @option{freqminsize}, @option{freqchunked} configuration
535 file options replaced with the structure:
536 @option{freq: @{path: ..., minsize: ..., chunked: ...@}}.
539 Added @option{freq.maxsize} configuration file option, forbidding of
540 freq sending larger than specified size.
543 Ability to notify about successfully executed commands (exec) with
544 @option{notify.exec} configuration file option.
549 @section Release 5.0.0
553 @strong{Incompatible} configuration file format change: YAML is
554 replaced with Hjson, due to its simplicity, without noticeable lack
555 of either functionality or convenience.
558 @strong{Incompatible} plain packet format changes. Older versions are
559 not supported. @code{zlib} compression is replaced with
560 @code{Zstandard}, due to its speed and efficiency, despite library
561 version is not mature enough.
564 Ability to call remote nodes via pipe call of external command, not only
568 @command{nncp-cfgnew} generates configuration file with many
569 comments. @option{-nocomments} option can be used for an old
573 Duplicate filenames have @file{.CTR} suffix, instead of @file{CTR}, to
574 avoid possible collisions with @file{.nncp.chunkCTR}.
577 Ability to override process umask through configuration file option.
580 Files and directories are created with 666/777 permissions by default,
581 allowing control with @command{umask}.
584 Updated dependencies.
587 Full usage of go modules for dependencies management
588 (@code{go.cypherpunks.ru/nncp/v5} namespace is used).
591 Forbid any later GNU GPL version autousage
592 (project's licence now is GNU GPLv3-only).
599 @item Workability on GNU/Linux systems and Go 1.10 is fixed.
607 @strong{Incompatible} encrypted and eblob packet format change: AEAD
608 encryption mode with 128 KiB blocks is used now, because previously
609 @command{nncp-toss} did not verify encrypted packet's MAC before feeding
610 decrypted data to external command. Older versions are not supported.
613 Available free space checking before copying in @command{nncp-xfer},
614 @command{nncp-daemon}, @command{nncp-call(er)}.
617 @command{nncp-call} has ability only to list packets on remote node,
618 without their transmission.
621 @command{nncp-call} has ability to transfer only specified packets.
624 Workability of @option{xxrate} preference in @option{calls}
625 configuration file section.
628 Dependant libraries are updated.
634 Begin using of @code{go.mod} subsystem.
641 @item @command{nncp-daemon} can be run as @command{inetd}-service.
649 @command{nncp-daemon}, @command{nncp-call}, @command{nncp-caller} check
650 if @file{.seen} exists and treat it like file was already downloaded.
651 Possibly it was transferred out-of-bound and remote side needs to be
655 If higher priority packet is spooled, then @command{nncp-daemon} will
656 queue its sending first, interrupting lower priority transmissions.
659 Simple packet rate limiter added to online-related tools
660 (@command{nncp-daemon}, @command{nncp-call}, @command{nncp-caller}).
663 Ability to specify niceness with symbolic notation:
664 @verb{|NORMAL|}, @verb{|BULK+10|}, @verb{|PRIORITY-5|}, etc.
667 Changed default niceness levels:
668 for @command{nncp-exec} from 64 to 96,
669 for @command{nncp-freq} from 64 to 160,
670 for @command{nncp-file} from 196 to 224.
678 @strong{Incompatible} @emph{bundle} archive format changes and
679 @command{nncp-bundle} workability with Go 1.10+. Bundles must be
680 valid tar archives, but Go 1.9 made them invalid because of long paths
681 inside. NNCP accidentally was dependant on that bug. Explicit adding of
682 @file{NNCP/} directory in archive restores workability with valid tar
690 Ability to disable relaying at all using @verb{|-via -|} command line option.
698 @strong{Incompatible} plain packet format changes. Older versions are
702 Ability to queue remote command execution, by configuring @option{exec}
703 option in configuration file and using @command{nncp-exec} command:
706 @command{nncp-mail} command is replaced with more flexible
707 @command{nncp-exec}. Instead of @verb{|nncp-mail NODE RECIPIENT|}
708 you must use @verb{|nncp-exec NODE sendmail RECIPIENT|}.
710 @option{sendmail} configuration file option is replaced with
711 @option{exec}. @verb{|sendmail: [...]|} must be replaced with
712 @verb{|exec: sendmail: [...]|}.
716 Ability to override @option{via} configuration option for destination
717 node via @option{-via} command line option for following commands:
718 @command{nncp-file}, @command{nncp-freq}, @command{nncp-exec}.
721 Chunked files, having size less than specified chunk size, will be sent
722 as an ordinary single file.
725 Exec commands are invoked with additional @env{NNCP_NICE} and
726 @env{NNCP_SELF} environment variables.
729 Files, that are sent as a reply to freq, have niceness level taken from
730 the freq packet. You can set desired niceness during @command{nncp-freq}
731 invocation using @option{-replynice} option.
734 @command{nncp-toss} command can ignore specified packet types during
735 processing: @option{-nofile}, @option{-nofreq}, @option{-noexec},
739 @command{nncp-file} command uses
740 @option{FreqMinSize}/@option{FreqChunked} configuration file options
741 for @option{-minsize}/@option{-chunked} by default. You can turn this
742 off by specifying zero value.
751 @strong{Incompatible} encrypted/eblob packet format changes. Older
752 versions are not supported.
755 Twofish encryption algorithm is replaced with ChaCha20. It is much more
756 faster. One cryptographic primitive less.
759 HKDF-BLAKE2b-256 KDF algorithm is replaced with BLAKE2Xb XOF. Yet
760 another cryptographic primitive less (assuming that BLAKE2X is nearly
761 identical to BLAKE2).
770 @strong{Incompatible} encrypted packet format changes. Older versions
774 @command{nncp-bundle} command can either create stream of encrypted
775 packets, or digest it. It is useful when dealing with
776 @code{stdin}/@code{stdout} based transmission methods (like writing to
777 CD-ROM without intermediate prepared ISO image and working with tape
781 @command{nncp-toss} is able to create @file{.seen} files preventing
782 duplicate packets receiving.
785 Single background checksum verifier worker is allowed in
786 @command{nncp-call}. This is helpful when thousands of small inbound
787 packets could create many goroutines.
790 Ability to override path to spool directory and logfile through either
791 command line argument, or environment variable.
794 @command{nncp-rm} is able to delete outbound/inbound, @file{.seen},
795 @file{.part}, @file{.lock} and temporary files.
800 @section Release 0.12
802 @item Sendmail command is called with @env{NNCP_SENDER} environment variable.
806 @section Release 0.11
808 @item @command{nncp-stat}'s command output is sorted by node name.
812 @section Release 0.10
815 @command{nncp-freq}'s @file{DST} argument is optional now. Last
816 @file{SRC} path's element will be used by default.
823 Fix @option{-rx}/@option{-tx} arguments processing in
824 @command{nncp-call} command. They were ignored.
831 Little bugfix in @command{nncp-file} command, where @option{-minsize}
832 option for unchunked transfer was not in KiBs, but in bytes.
840 Ability to feed @command{nncp-file} from @code{stdin}, that uses an
841 encrypted temporary file for that.
844 Chunked files transmission appeared with corresponding
845 @command{nncp-reass} command and @option{freqchunked} configuration file
846 entry. Useful for transferring big files over small storage devices.
849 @option{freqminsize} configuration file option, analogue to
850 @option{-minsize} one.
853 @command{nncp-xfer}'s @option{-force} option is renamed to
854 @option{-mkdir} for clarity.
857 @option{-minsize} option is specified in KiBs, not bytes, for
861 @command{nncp-newcfg} command is renamed to @command{nncp-cfgnew},
862 and @command{nncp-mincfg} to @command{nncp-cfgmin} -- now they have
863 common prefix and are grouped together for convenience.
866 @command{nncp-cfgenc} command appeared, allowing configuration file
867 encryption/decryption, for keeping it safe without any either OpenPGP or
871 Cryptographic libraries (dependencies) are updated.
878 @item Small @command{nncp-rm} command appeared.
879 @item Cryptographic libraries (dependencies) are updated.
886 Trivial small fix in default niceness level of @command{nncp-file}
887 and @command{nncp-freq} commands.
895 Small fix in @command{nncp-call}, @command{nncp-caller},
896 @command{nncp-daemon}: they can segmentation fail sometimes (no data is
900 @command{nncp-newnode} renamed to @command{nncp-newcfg} -- it is shorter
901 and more convenient to use.
904 @command{nncp-mincfg} command appeared: helper allowing to create
905 minimalistic stripped down configuration file without private keys, that
906 is useful during @command{nncp-xfer} usage.
913 @item Fixed compatibility with Go 1.6.
921 @strong{Incompatible} packet's format change (magic number is changed
922 too): size field is encrypted and is not send in plaintext anymore.
925 @option{-minsize} option gives ability to automatically pad outgoing
926 packets to specified minimal size.
929 @command{nncp-daemon} and @command{nncp-call}/@command{nncp-caller}
930 always check new @emph{tx} packets appearance in the background while
931 connected. Remote side is immediately notified.
934 @option{-onlinedeadline} option gives ability to configure timeout of
935 inactivity of online connection, when it could be disconnected. It could
936 be used to keep connection alive for a long time.
939 @option{-maxonlinetime} option gives ability to set maximal allowable
940 online connection aliveness time.
943 @command{nncp-caller} command appeared: cron-ed TCP daemon caller.
946 @command{nncp-pkt} command can decompress the data.