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Comparing gvpe/NEWS (file contents):
Revision 1.94 by root, Thu Dec 2 07:15:14 2010 UTC vs.
Revision 1.139 by root, Mon Apr 1 03:10:26 2019 UTC

1GVPE NEWS 1GVPE NEWS
2 2
3TODO: compress docs? 3 - update embedded liblzf.
4 - use liblzf with static hash table: lowers stack usage.
5 - do not initialise liblzf hash table for faster operation.
6 - use C++ variadic templates for callback.h, get rid of callback.pl.
7
83.1 Sat Oct 27 07:50:43 CEST 2018
9 - port to openssl 1.1 BUT SEE WARNING IN configure.ac. Do not use!
10 - tinc cruft removal: remove getopt.[ch], it's less portable to
11 have it then to not have it.
12 - tinc cruft removal: use pkg-config to detect libressl/openssl.
13 - minor cleanups.
14
153.0 Thu Nov 10 15:39:58 CET 2016
16 - INCOMPATIBLE CHANGE: core protocol version 1.0.
17 - INCOMPATIBLE CHANGE: node sections are now introduced
18 with "node nodename", not "node = nodename".
19 - INCOMPATIBLE CHANGE: gvpectrl -g will now generate a single
20 keypair, while -G will try to generate all keypairs as before.
21 - openssl 1.0.2 is the latest supported openssl release,
22 openssl 1.1.0 is not supported at the moment as the work to
23 make it compatible to both versions is just too much. a switch
24 to openssl 1.1 or another library will be done in a future release.
25 - update examples to not generate keys centrally, but locally on each
26 node.
27 - add workaround for temporary/rare ENOBUFS condition.
28 - while individual packets couldn't be replayed, a whole session
29 could be replayed - this has been fixed by an extra key exchange.
30 - fix a delete vs. delete [] mismatch in the central logging function.
31 - in addition to rsa key exchange and authentication, the handshake now
32 adds a diffie-hellman key exchange (using curve25119) for perfect
33 forward secrecy. mac and cipher keys are derived using HKDF.
34 - rsa key sizes are now configurable and larger (default is 3072).
35 correspondingly, the minimum mtu is no longer 296 but 576.
36 - fixed a potential (unverified) buffer overrun on rsa decryption.
37 - new per-node low-power setting that tries to reduce cpu/network usage.
38 - router reconnects could cause excessive rekeying on other connections.
39 - gvpectrl no longer generates all missing public keys, but
40 only missing private keys. private keys are also put
41 into the configured location.
42 - the pid-file now accepts %s as nodename as elsewhere.
43 - switch to counter mode (only aes supported at the moment in
44 openssl). this gets rid of the need to generate a random iv,
45 is likely more secure (and, as a side effect, gets rid of
46 slow randomness generation. counter mode is often faster
47 then cbc mode as well, and packets are smaller).
48 - no longer use RAND_bytes to generate session keys - you NEED
49 a real source of entropy now (e.g. egd or /dev/random - see the
50 openssl documentation).
51 - multiple node statements for the same node are now supported
52 and will be merged.
53 - a new directive "global" switches back to the global section
54 of the config file.
55 - if-up scripts can now be specified with absolute paths.
56 - new global option: serial, to detect configuration mismatches.
57 - use HKDF as authentication proof, not HMAC or a plain hash
58 (hint by Ilmari Karonen).
59 - during rekeying or connection establishments, hmac authentication
60 errors could occur and reset the connection. Transient hmac
61 authentication errors are now being ignored for 3 seconds.
62 - log the reason for a conneciton loss.
63 - use a (hopefully) constant time memcmp to compare internal secrets.
64 - fix a (harmless) errornous out of bounds stack read that would trigger
65 gcc's -fsanitize=address.
66 - bump old packet window size from 512 to 65536.
67 - update for big changes in openssl 1.1 API, wrap primitives
68 to make further changes easier.
69 - correctly check return values for openssl 1.0.0 and later.
70 - check for both public and private key file when deciding whether
71 to skip generating a key to avoid accidental overwrites.
72
732.25 Sat Jul 13 06:42:33 CEST 2013
74 - INCOMPATIBLE CHANGE: no longer enable udp protocol if no other
75 protocols are enabled - this is necessary when you have nodes with
76 completely unknown protocols, to force mediated connection requests.
77 - INCOMPATIBLE CHANGE: dns transport protocol bumped to version 2.
78 - core protocol version 0.1, compatible with older releases.
79 - switch to using RSA_generate_key_ex, which is the badly documented
80 and needlessly more complicated replacement for the RSA_generate_key
81 function which is now deprecated.
82 - support additional hmac hashes: sha256 and sha512, usually truncated.
83 - change public exponent for rsa keys from 65535 to 65537, for
84 efficiency reasons - only affects new keys.
85 - nodes would sometimes declare transport endpoints valid despite
86 the protocol not being configured locally.
87 - new global configuration options: chroot, chuser, chuid, chgid,
88 to chroot to a specified or anonymous new root, and change user id.
89 - new global configuration options seed_device and seed_interval,
90 to configure another device than /dev/urandom for random seeds,
91 and to configure a regular interval to reseed the rng.
92 - prefer inet_aton over gethostbyname, as the latter is not guaranteed
93 to "resolve" literal ip addresses.
94 - configure didn't detect openssl 1.0 because SHA1_version became private
95 (patch by TANIGUCHI Takaki).
96 - fix a bug where nodes would tell the other side that it supports
97 the same protocols as that other side, instead of its own.
98 - add zlib when found, as openssl depends on it in newer versions.
99 - work around append-bugs in uclibc by using an extra seek.
100 - new "include" directive for the config file.
101 - gvpectrl no longer evaluates any "on" directives.
102 - icmp and rawip protocols weren't upgradable to each other.
103 - major, but incremental, dns transport improvements:
104 - do not simply abort in some error cases in the dns transport,
105 but try to recover.
106 - allow lowercase/uppercase aliases for base-n encodings that do
107 not rely on case.
108 - use base26 instead of base22 encoding for dns syn's, and
109 base36 instead of base22 for headers (saves one byte/packet).
110 - back off far quicker in dns tunnel when idling - increases
111 latency on an idle link somewhat, but avoids hundreds of
112 needless packets.
113 - poll more aggressively when idling in dns (poll once per
114 second as opposed to once per 5 seconds).
115 - reduce dns send payload size to allow greater rate of ack
116 messages (should help sack and ipv6).
117 - allow for ip options in rawip/icmp transports, even though gvpe
118 doesn't generate them.
119 - upgrade to autoconf 2.69, automake 1.11.
120 - upgrade to libev 4 API.
121 - replace COPYING file by actual GPLv3 - files were relicensed to GPLv3
122 earlier but COPYING was forgotten.
123
1242.24 Sat Feb 12 05:15:48 CET 2011
125 - protocol version 0.1, compatible with older releases.
4 - due to a bug, when packets were lost, a conenction could go into a 126 - due to a bug, when packets were lost, a connection could go into a
5 state where a ping/connection request from another node would be 127 state where a ping/connection request from another node would be
6 ignored. 128 ignored, leading to connections not being re-established.
7 - due to a bug, compression was almost always enabled. 129 - due to a bug, compression was almost always enabled.
8 - enable-max-mtu was actually enable-mtu, contrary to documentation. 130 - enable-max-mtu was actually enable-mtu, contrary to documentation.
9 - add nfmark support. 131 - add nfmark support.
10 - add node-change script support. 132 - add node-change script support.
11 - new DESTSI variable for node-xxx scripts. 133 - new DESTSI variable for node-xxx scripts.
134 - updated codingstyle a bit, declared truly static stuff as static.
135 - clarify compression docs.
12 136
132.22 Sun Feb 1 17:25:28 CET 2009 1372.22 Sun Feb 1 17:25:28 CET 2009
14 - protocol version 0.1, compatible with older releases, 138 - protocol version 0.1, compatible with older releases.
15 - enabled icmp/tcp/http-proxy protocols by default. 139 - enabled icmp/tcp/http-proxy protocols by default.
16 - updated copyright in program greetings. 140 - updated copyright in program greetings.
17 - fix some configure messages. 141 - fix some configure messages.
18 - updated to libev 3.52. 142 - updated to libev 3.52.
19 143
202.21 Wed Sep 3 06:56:27 CEST 2008 1442.21 Wed Sep 3 06:56:27 CEST 2008
21 - protocol version 0.1, compatible with older releases, 145 - protocol version 0.1, compatible with older releases.
22 - add missing ev++.h include header to tarball, which everybody 146 - add missing ev++.h include header to tarball, which everybody
23 who tested it apparently had in their include path :(. Caught 147 who tested it apparently had in their include path :(. Caught
24 by Karl Kleinpaste and Marcus Kong. 148 by Karl Kleinpaste and Marcus Kong.
25 149
262.2 Mon Sep 1 06:28:09 CEST 2008 1502.2 Mon Sep 1 06:28:09 CEST 2008
27 - protocol version 0.1, compatible with older releases, 151 - protocol version 0.1, compatible with older releases.
28 but upgrade is recommended to due changed ondemand behaviour. 152 but upgrade is recommended to due changed ondemand behaviour.
29 - new per-node options max-ttl and max-queue. 153 - new per-node options max-ttl and max-queue.
30 - convert from iom.C to libev, a high-performance event loop 154 - convert from iom.C to libev, a high-performance event loop
31 (http://software.schmorp.de/pkg/libev). 155 (http://software.schmorp.de/pkg/libev).
32 - tcp connections were leaking in some cases. 156 - tcp connections were leaking in some cases.

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