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Comparing gvpe/NEWS (file contents):
Revision 1.112 by root, Sat Jul 13 04:10:29 2013 UTC vs.
Revision 1.124 by root, Thu Jan 29 00:21:38 2015 UTC

… …
2 2
3TODO: bridge mode, finally? 3TODO: bridge mode, finally?
4TODO: gcm mode? 4TODO: gcm mode?
5TODO: replace ripemd160 as the only authentication hash. 5TODO: replace ripemd160 as the only authentication hash.
6TODO: increase rsa size. 6TODO: increase rsa size.
7TODO: replace transport bits by transport endpoint structs?
8TODO: http://incog-izick.blogspot.de/2011/08/using-openssl-aes-gcm.html
9TODO: http://stackoverflow.com/questions/12153009/openssl-c-example-of-aes-gcm-using-evp-interfaces
7 10
11TODO: verify
12TODO: make sense of overhead calculation
13TODO: if-up &c should not be scripts?
14TODO: ipv6
15TODO: gvpectrl should not use default privatekey,. or maybe document it better
16 - INCOMPATIBLE CHANGE: core protocol version 1.0.
17 - INCOMPATIBLE CHANGE: node sections are now introduced
18 with "node nodename", not "node = nodename".
19 - while individual packets couldn't be replayed, a whole session
20 could be replayed - this has been fixed by an extra key exchange.
21 - in addition to rsa key exchange and authentication, the handshake now
22 adds a diffie-hellman key exchange (using curve25119) for perfect
23 forward secrecy. mac and cipher keys are derived using HKDF.
24 - rsa key sizes are now configurable and larger (default is 3072).
25 correspondingly, the minimum mtu is no longer 296 but 576.
26 - fixed a potential (unverified) buffer overrun on rsa decryption.
27 - new per-node low-power setting that tries to reduce cpu/network usage.
28 - router reconnects could cause excessive rekeying on other connections.
29 - gvpectrl no longer generates all missing public keys, but
30 only missing private keys. private keys are also put
31 into the configured location.
32 - the pid-file now accepts %s as nodename as elsewhere.
33 - switch to counter mode (only aes supported at the moment in
34 openssl). this gets rid of the need to generate a random iv,
35 is likely more secure (and, as a side effect, gets rid of
36 slow randomness generation. counter mode is often faster
37 then cbc mode as well).
38 - no longer use RAND_bytes to generate session keys - you NEED
39 a real source of entropy now (e.g. egd or /dev/random - see the
40 openssl documentation).
41 - multiple node statements for the same node are now supported
42 and will be merged.
43 - a new directive "global" switches back to the global section
44 of the config file.
45 - if-up scripts can now be specified with absolute paths.
46 - new global option: serial, to detect configuration mismatches.
47 - use HKDF as authentication proof, not HMAC or a plain hash
48 (hint by Ilmari Karonen).
49 - during rekeying or conenction establishments, hmac authentication
50 errors could occur and reset the connection. Transient hmac
51 authentication errors are now being ignored for 3 seconds.
52 - log the reason for a conneciton loss.
53 - use a (hopefully) constant time memcmp to compare internal secrets.
54
552.25 Sat Jul 13 06:42:33 CEST 2013
8 - INCOMPATIBLE CHANGE: no longer enable udp protocol if no other 56 - INCOMPATIBLE CHANGE: no longer enable udp protocol if no other
9 protocols are enabled - this is necessary when you have nodes with 57 protocols are enabled - this is necessary when you have nodes with
10 completely unknown protocols, to force mediated connection requests. 58 completely unknown protocols, to force mediated connection requests.
11 - INCOMPATIBLE CHANGE: dns transport protocol bumped to version 2. 59 - INCOMPATIBLE CHANGE: dns transport protocol bumped to version 2.
12 - core protocol version 0.1, compatible with older releases. 60 - core protocol version 0.1, compatible with older releases.
… …
20 the protocol not being configured locally. 68 the protocol not being configured locally.
21 - new global configuration options: chroot, chuser, chuid, chgid, 69 - new global configuration options: chroot, chuser, chuid, chgid,
22 to chroot to a specified or anonymous new root, and change user id. 70 to chroot to a specified or anonymous new root, and change user id.
23 - new global configuration options seed_device and seed_interval, 71 - new global configuration options seed_device and seed_interval,
24 to configure another device than /dev/urandom for random seeds, 72 to configure another device than /dev/urandom for random seeds,
25 and to configure a regular imterval to reseed the rng. 73 and to configure a regular interval to reseed the rng.
26 - prefer inet_aton over gethostbyname, as the latter is not guaranteed 74 - prefer inet_aton over gethostbyname, as the latter is not guaranteed
27 to "resolve" literal ip addresses. 75 to "resolve" literal ip addresses.
28 - configure didn't detect openssl 1.0 because SHA1_version became private 76 - configure didn't detect openssl 1.0 because SHA1_version became private
29 (patch by TANIGUCHI Takaki). 77 (patch by TANIGUCHI Takaki).
30 - fix a bug where nodes would tell the other side that it supports 78 - fix a bug where nodes would tell the other side that it supports
… …
35 - gvpectrl no longer evaluates any "on" directives. 83 - gvpectrl no longer evaluates any "on" directives.
36 - icmp and rawip protocols weren't upgradable to each other. 84 - icmp and rawip protocols weren't upgradable to each other.
37 - major, but incremental, dns transport improvements: 85 - major, but incremental, dns transport improvements:
38 - do not simply abort in some error cases in the dns transport, 86 - do not simply abort in some error cases in the dns transport,
39 but try to recover. 87 but try to recover.
40 - allow lowercase/uppercase alises for base-n encodings that do 88 - allow lowercase/uppercase aliases for base-n encodings that do
41 not rely on case. 89 not rely on case.
42 - use base26 instead of base22 encoding for dns syn's, and 90 - use base26 instead of base22 encoding for dns syn's, and
43 base36 instead of base22 for headers (saves one byte/packet). 91 base36 instead of base22 for headers (saves one byte/packet).
44 - back off far quicker in dns tunnel when idling - increases 92 - back off far quicker in dns tunnel when idling - increases
45 latency on an idle link somewhat, but avoids hundreds of 93 latency on an idle link somewhat, but avoids hundreds of
… …
48 second as opposed to once per 5 seconds). 96 second as opposed to once per 5 seconds).
49 - reduce dns send payload size to allow greater rate of ack 97 - reduce dns send payload size to allow greater rate of ack
50 messages (should help sack and ipv6). 98 messages (should help sack and ipv6).
51 - allow for ip options in rawip/icmp transports, even though gvpe 99 - allow for ip options in rawip/icmp transports, even though gvpe
52 doesn't generate them. 100 doesn't generate them.
101 - upgrade to autoconf 2.69, automake 1.11.
53 - upgrade to libev 4 API. 102 - upgrade to libev 4 API.
103 - replace COPYING file by actual GPLv3 - files were relicensed to GPLv3
104 earlier but COPYING was forgotten.
54 105
552.24 Sat Feb 12 05:15:48 CET 2011 1062.24 Sat Feb 12 05:15:48 CET 2011
56 - protocol version 0.1, compatible with older releases. 107 - protocol version 0.1, compatible with older releases.
57 - due to a bug, when packets were lost, a connection could go into a 108 - due to a bug, when packets were lost, a connection could go into a
58 state where a ping/connection request from another node would be 109 state where a ping/connection request from another node would be
… …
103 - work around the horribly inconsistent, ad-hoc, ever-changing 154 - work around the horribly inconsistent, ad-hoc, ever-changing
104 and broken texinfo syntax. YMMV. avoid texinfo. 155 and broken texinfo syntax. YMMV. avoid texinfo.
105 - keepalive is more aggressive now, sensding ping's every 3 seconds 156 - keepalive is more aggressive now, sensding ping's every 3 seconds
106 and killing the conenction after 15 seconds. 157 and killing the conenction after 15 seconds.
107 - bugfixes. 158 - bugfixes.
108 - autoconf 2.69, automake 1.11.
109 159
1102.01 Thu Mar 29 19:26:04 CEST 2007 1602.01 Thu Mar 29 19:26:04 CEST 2007
111 - protocol version 0.1, compatible with older releases. 161 - protocol version 0.1, compatible with older releases.
112 - bugfix of callback.h, might have cause callback return values to 162 - bugfix of callback.h, might have cause callback return values to
113 be corrupted on architectures like sparc before. 163 be corrupted on architectures like sparc before.

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