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Comparing gvpe/NEWS (file contents):
Revision 1.112 by root, Sat Jul 13 04:10:29 2013 UTC vs.
Revision 1.127 by root, Thu Jul 30 19:03:44 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 - fix a delete vs. delete [] mismatch in the central logging function.
22 - in addition to rsa key exchange and authentication, the handshake now
23 adds a diffie-hellman key exchange (using curve25119) for perfect
24 forward secrecy. mac and cipher keys are derived using HKDF.
25 - rsa key sizes are now configurable and larger (default is 3072).
26 correspondingly, the minimum mtu is no longer 296 but 576.
27 - fixed a potential (unverified) buffer overrun on rsa decryption.
28 - new per-node low-power setting that tries to reduce cpu/network usage.
29 - router reconnects could cause excessive rekeying on other connections.
30 - gvpectrl no longer generates all missing public keys, but
31 only missing private keys. private keys are also put
32 into the configured location.
33 - the pid-file now accepts %s as nodename as elsewhere.
34 - switch to counter mode (only aes supported at the moment in
35 openssl). this gets rid of the need to generate a random iv,
36 is likely more secure (and, as a side effect, gets rid of
37 slow randomness generation. counter mode is often faster
38 then cbc mode as well, and packets are smaller).
39 - no longer use RAND_bytes to generate session keys - you NEED
40 a real source of entropy now (e.g. egd or /dev/random - see the
41 openssl documentation).
42 - multiple node statements for the same node are now supported
43 and will be merged.
44 - a new directive "global" switches back to the global section
45 of the config file.
46 - if-up scripts can now be specified with absolute paths.
47 - new global option: serial, to detect configuration mismatches.
48 - use HKDF as authentication proof, not HMAC or a plain hash
49 (hint by Ilmari Karonen).
50 - during rekeying or conenction establishments, hmac authentication
51 errors could occur and reset the connection. Transient hmac
52 authentication errors are now being ignored for 3 seconds.
53 - log the reason for a conneciton loss.
54 - use a (hopefully) constant time memcmp to compare internal secrets.
55 - fix a (harmless) errornous out of bounds stack read that would trigger
56 gcc's -fsanitize=address.
57
582.25 Sat Jul 13 06:42:33 CEST 2013
8 - INCOMPATIBLE CHANGE: no longer enable udp protocol if no other 59 - INCOMPATIBLE CHANGE: no longer enable udp protocol if no other
9 protocols are enabled - this is necessary when you have nodes with 60 protocols are enabled - this is necessary when you have nodes with
10 completely unknown protocols, to force mediated connection requests. 61 completely unknown protocols, to force mediated connection requests.
11 - INCOMPATIBLE CHANGE: dns transport protocol bumped to version 2. 62 - INCOMPATIBLE CHANGE: dns transport protocol bumped to version 2.
12 - core protocol version 0.1, compatible with older releases. 63 - core protocol version 0.1, compatible with older releases.
20 the protocol not being configured locally. 71 the protocol not being configured locally.
21 - new global configuration options: chroot, chuser, chuid, chgid, 72 - new global configuration options: chroot, chuser, chuid, chgid,
22 to chroot to a specified or anonymous new root, and change user id. 73 to chroot to a specified or anonymous new root, and change user id.
23 - new global configuration options seed_device and seed_interval, 74 - new global configuration options seed_device and seed_interval,
24 to configure another device than /dev/urandom for random seeds, 75 to configure another device than /dev/urandom for random seeds,
25 and to configure a regular imterval to reseed the rng. 76 and to configure a regular interval to reseed the rng.
26 - prefer inet_aton over gethostbyname, as the latter is not guaranteed 77 - prefer inet_aton over gethostbyname, as the latter is not guaranteed
27 to "resolve" literal ip addresses. 78 to "resolve" literal ip addresses.
28 - configure didn't detect openssl 1.0 because SHA1_version became private 79 - configure didn't detect openssl 1.0 because SHA1_version became private
29 (patch by TANIGUCHI Takaki). 80 (patch by TANIGUCHI Takaki).
30 - fix a bug where nodes would tell the other side that it supports 81 - fix a bug where nodes would tell the other side that it supports
35 - gvpectrl no longer evaluates any "on" directives. 86 - gvpectrl no longer evaluates any "on" directives.
36 - icmp and rawip protocols weren't upgradable to each other. 87 - icmp and rawip protocols weren't upgradable to each other.
37 - major, but incremental, dns transport improvements: 88 - major, but incremental, dns transport improvements:
38 - do not simply abort in some error cases in the dns transport, 89 - do not simply abort in some error cases in the dns transport,
39 but try to recover. 90 but try to recover.
40 - allow lowercase/uppercase alises for base-n encodings that do 91 - allow lowercase/uppercase aliases for base-n encodings that do
41 not rely on case. 92 not rely on case.
42 - use base26 instead of base22 encoding for dns syn's, and 93 - use base26 instead of base22 encoding for dns syn's, and
43 base36 instead of base22 for headers (saves one byte/packet). 94 base36 instead of base22 for headers (saves one byte/packet).
44 - back off far quicker in dns tunnel when idling - increases 95 - back off far quicker in dns tunnel when idling - increases
45 latency on an idle link somewhat, but avoids hundreds of 96 latency on an idle link somewhat, but avoids hundreds of
48 second as opposed to once per 5 seconds). 99 second as opposed to once per 5 seconds).
49 - reduce dns send payload size to allow greater rate of ack 100 - reduce dns send payload size to allow greater rate of ack
50 messages (should help sack and ipv6). 101 messages (should help sack and ipv6).
51 - allow for ip options in rawip/icmp transports, even though gvpe 102 - allow for ip options in rawip/icmp transports, even though gvpe
52 doesn't generate them. 103 doesn't generate them.
104 - upgrade to autoconf 2.69, automake 1.11.
53 - upgrade to libev 4 API. 105 - upgrade to libev 4 API.
106 - replace COPYING file by actual GPLv3 - files were relicensed to GPLv3
107 earlier but COPYING was forgotten.
54 108
552.24 Sat Feb 12 05:15:48 CET 2011 1092.24 Sat Feb 12 05:15:48 CET 2011
56 - protocol version 0.1, compatible with older releases. 110 - protocol version 0.1, compatible with older releases.
57 - due to a bug, when packets were lost, a connection could go into a 111 - 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 112 state where a ping/connection request from another node would be
103 - work around the horribly inconsistent, ad-hoc, ever-changing 157 - work around the horribly inconsistent, ad-hoc, ever-changing
104 and broken texinfo syntax. YMMV. avoid texinfo. 158 and broken texinfo syntax. YMMV. avoid texinfo.
105 - keepalive is more aggressive now, sensding ping's every 3 seconds 159 - keepalive is more aggressive now, sensding ping's every 3 seconds
106 and killing the conenction after 15 seconds. 160 and killing the conenction after 15 seconds.
107 - bugfixes. 161 - bugfixes.
108 - autoconf 2.69, automake 1.11.
109 162
1102.01 Thu Mar 29 19:26:04 CEST 2007 1632.01 Thu Mar 29 19:26:04 CEST 2007
111 - protocol version 0.1, compatible with older releases. 164 - protocol version 0.1, compatible with older releases.
112 - bugfix of callback.h, might have cause callback return values to 165 - bugfix of callback.h, might have cause callback return values to
113 be corrupted on architectures like sparc before. 166 be corrupted on architectures like sparc before.

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