[ViewVC] Annotation of: cvs/gvpe/NEWS

GVPE NEWS

New option OPENSSL_NO_SSL_INTERN. If an application can be compiled
     with this defined it will not be affected by any changes to ssl internal
     structures. Add several utility functions to allow openssl application
     to work with OPENSSL_NO_SSL_INTERN defined.
     [Steve Henson]
TODO: bridge mode, finally?

        - INCOMPATIBLE CHANGE: no longer enable udp protocol if no other
          protocols are enabled - this is necessary when you have nodes with
          completely unknown protocols, to force mediated connection requests.
        - INCOMPATIBLE CHANGE: dns transport protocol bumped to version 2.
        - nodes would sometimes declare transport endpoints valid despite
          the protocol not being configured locally.
        - new global configuration options: chroot, chuser, chuid, chgid,
          to chroot to a specified or anonymous new root, and change user id.
        - configure didn't detect openssl 1.0 because SHA1_version became private
          (patch by TANIGUCHI Takaki).
        - core protocol version 0.1, compatible with older releases.
        - fix a bug where nodes would tell the other side that it supports
          the same protocols as that other side, instead of its own.
        - add zlib when found, as openssl depends on it in newer versions.
        - work around append-bugs in uclibc by using an extra seek.
        - new "include" directive for the config file.
        - gvpectrl no longer evaluates any "on" directives.
        - icmp and rawip protocols weren't upgradable to each other.
        - major, but incremental, dns transport improvements:
           - do not simply abort in some error cases in the dns transport,
             but try to recover.
           - allow lowercase/uppercase alises for base-n encodings that do
             not rely on case.
           - use base26 instead of base22 encoding for dns syn's, and
             base36 instead of base22 for headers (saves one byte/packet).
           - back off far quicker in dns tunnel when idling - increases
             latency on an idle link somewhat, but avoids hundreds of
             needless packets.
           - poll more aggressively when idling in dns (poll once per
             second as opposed to once per 5 seconds).
           - reduce dns send payload size to allow greater rate of ack
             messages (should help sack and ipv6).
        - allow for ip options in rawip/icmp transports, even though gvpe
          doesn't generate them.
        - upgrade to libev 4 API.

2.24 Sat Feb 12 05:15:48 CET 2011
        - protocol version 0.1, compatible with older releases.
        - due to a bug, when packets were lost, a connection could go into a
          state where a ping/connection request from another node would be
          ignored, leading to connections not being re-established.
        - due to a bug, compression was almost always enabled.
        - enable-max-mtu was actually enable-mtu, contrary to documentation.
        - add nfmark support.
        - add node-change script support.
        - new DESTSI variable for node-xxx scripts.
        - updated codingstyle a bit, declared truly static stuff as static.
        - clarify compression docs.

2.22 Sun Feb  1 17:25:28 CET 2009
        - protocol version 0.1, compatible with older releases.
        - enabled icmp/tcp/http-proxy protocols by default.
        - updated copyright in program greetings.
        - fix some configure messages.
        - updated to libev 3.52.

2.21 Wed Sep  3 06:56:27 CEST 2008
        - protocol version 0.1, compatible with older releases.
        - add missing ev++.h include header to tarball, which everybody
          who tested it apparently had in their include path :(. Caught
          by Karl Kleinpaste and Marcus Kong.

2.2  Mon Sep  1 06:28:09 CEST 2008
        - protocol version 0.1, compatible with older releases.
          but upgrade is recommended to due changed ondemand behaviour.
        - new per-node options max-ttl and max-queue.
        - convert from iom.C to libev, a high-performance event loop
          (http://software.schmorp.de/pkg/libev).
        - tcp connections were leaking in some cases.
        - retry more aggressively (once/s) to establish a connection if
          new packets arrive for it.
        - save a lot of setsockopt calls when the tos doesn't change.
        - honor disabled even on initial connect attempt.
        - changed callback mechanism to be slightly less portable
          but more efficient mechanism (standards-compliant c++ compilers
          should work).
        - increased receive window positive size, to allow for massive
          packet loss due to occasional longer drop-outs.
        - send RST when a positive window size violation is detected, but
          not in other cases, to reconnect more quickly.
        - upgraded liblzf to version 3.4.
        - dropped -fno-exceptions due to ev++.h using it.
        - node-up/down scripts are now run in sequence.
        - new -q switch for gvpectrl, for when you run it often.
        - work around the horribly inconsistent, ad-hoc, ever-changing
          and broken texinfo syntax. YMMV. avoid texinfo.
        - keepalive is more aggressive now, sensding ping's every 3 seconds
          and killing the conenction after 15 seconds.
        - bugfixes.

2.01 Thu Mar 29 19:26:04 CEST 2007
        - protocol version 0.1, compatible with older releases.
        - bugfix of callback.h, might have cause callback return values to
          be corrupted on architectures like sparc before.
        - dns transport retries more aggressively.
        - updated documentation, improved dns transport reliability
          and throughput.
        - added experimental support for sha256 and sha512 digests.

2.0 Mon Dec  5 13:59:26 CET 2005
        - protocol version 0.1, compatible with older releases.
        - implement allow-direct, deny-direct node config statements.
        - implemented != for sockinfo. This fixes a bug where
          gvpe sent packets to the old ip address of another host
          even though it had received packets from it's new address.
          This only causes problems if you forget to -HUP your gvpe after
          your ip address changed, which is *required*.
        - sets close-on-exec flag on tcp connections. This fixes a bug
          where child processes kept tcp connections open and caused
          connections to fail when only one side can connect.
        - fixed a bug in receive sequence checking that made gvpe
          accept out-of-window packets in most cases.
        - tighter limit for the maximum sequence # to avoid overflow
          conditions + allow more headroom for packet reordering.
        - replace some asserts that trapped config mismatches by
          more useful log messages.
        - fix spurious extra newline in some log messages.

1.9 Tue Apr 19 06:21:50 CEST 2005
        - protocol version 0.1, compatible with older releases.
        - WARNING: this version checks the return value of if-up etc.
          scripts and exits on failure.
        - IMPORTANT: run if-up/node-up etc. scripts via /bin/sh.
        - IMPORTANT: interface initialization (MAC, MTU) is now done
          automatically in most configurations.
        - options can now be specified on the gvpe command line, too.
        - make some DNS transport values configurable and document them.
        - improved OS specific information in gvpe.osdep(5).
        - new tap device type "native/darwin", that supports the tap
          driver available for darwin (thanks to matthew mead who tested
          it out with me in a long session). tincd/darwin is still available.
        - new device type "tincd/bsd", which is a newer version of the
          *bsd-drivers taken from tinc.
        - fixed a bug in relying on the order of global construction
          when tcp transport was enabled. The fix makes it use no
          cpu time unless it is in use, too.
        - information about other nodes is now available to if-up etc. scripts.
        - the value of the config variable if-up-data is passed to the if-up
          etc. scripts.
        - skip unparsable config lines with a warning instead of stopping
          parsing and continuing with a certainly unusable config.

1.8 Fri Mar 18 00:58:55 CET 2005
        - protocol version 0.1, compatible with older releases.
        - enable-udp = yes is now default only when no other protocols
          are enabled. otherwise it is disabled unless explicitly enabled.
        - implemented dns tunneling (experimental now and in the future).
        - remove support for pre-release version protocol.
        - updated tincd drivers (rev 1433), added uml_socket driver, documented
          tincd drivers a bit better.
        - document icmp configuration values.
        - document transport protocols in gvpe.protocol(7).
        - remove unused ChangeLog file.
        - created a mailinglist at gvpe@lists.schmorp.de.
        - added an exemption to allow distribution of binaries linked against
          OpenSSL, as suggested by Guus Sliepen (author of tinc). No
          GNUTLS conversion in sight.
        - some portability fixes with respect to --disable-nls.

1.7 Tue Feb 22 23:58:59 CET 2005
        - protocol version 0.1, compatible with older releases.
        - first gnu release.
        - documented the special value 1 for router-priority.
        - renamed vped => gvpe and vpectrl => gvpectrl, as well as
          vped.conf => gvpe.conf.
        - new per-node option "max-retry".
        - asymmetric rekeying behaviour, so hosts don't rekey simultaneously.
        - new configure option --enable-static-daemon.
        - fix configure --help output.
        - many documentation layout fixes.
        - synced iom.[Ch] from rxvt-unicode.
        - try to cope with some non-monotonic time changes.
        - revert to locale.h - a usual, clocale is nonfunctioning on macosx.
        - considerably improved pod2texi and the resulting texi doc.

1.6.1 Wed May 12 14:48:20 CEST 2004
        - protocol version 0.1, compatible with older releases.
        - fix -c switch that has been broken due to a last-minute fix
          to option and config file parsing.

1.6 Mon May 10 20:55:10 CEST 2004
        - protocol version 0.1, compatible with older releases.
        - do not RESET on out-of-sequence packets (good for wireless).
        - various non-security-related bugfixes.
        - c++ify (at least make it compile with g++-3.4, which should make
          it a little bit more standard c++).

1.5 Fri Jan 30 00:50:04 CET 2004
        - protocol version 0.1, compatible with older releases.
        - vped will refuse to start when hostkey and public key do not match.
        - updated lzf code to version 1.2.
        - better error reporting for "unusual" conditions, like failing
          to allocate memory, that should not normally happen and
          will otherwise result in spurious other error messages. Also
          adds paranoid checks in case openssl's API changes in a bad way.
        - fix a bug where queued vpn packets were cleared to zero. while
          this doesn't affect security, it did cause warning messages and
          unnecessary connectivity delays.

1.4 Sat Jan 17 15:49:21 CET 2004
        - protocol version 0.1, compatible with older releases.
        - better retry behaviour on key mismatch.
        - use select-based io_manager instead of poll-based one.
        - share io manager between rxvt-unicode and vpe.
        - sooo many *BSD workarounds because no BSD I could find is even
          remotely POSIX-compatible.

1.2 Fri Oct 17 03:44:44 CEST 2003
        - protocol version 0.1.
        - tincd kernel interface code imported, more supported platforms
          (native/linux (2.4), tincd/linux (2.2 and 2.4), tincd/freebsd,
          native/cygwin).
        - added primitive ethernet emulation (ipv4 only), which allows
          the following platforms that only have tun drivers to work:
          /* none yet tested */
        - portability workarounds, especially for unfriendly freebsd
        - very minor bugfixes
        - warnings when choosing insecure ciphers/hashes
        - reduced default hmac length to 8.
        - cvs now contains configure, Makefile.in and other generated files.
        - added doc/complex-example to the distribution.

1.0 distant past
        - protocol version 0.1.
        - tweaked various timeouts to help very slow (486) class
          machines or nets with many hosts.
        - tweaked rate-limiting to be more forgiving for hosts
          connecting through routers (not a fix).

Revision:	1.106
Committed:	Tue Dec 4 10:29:43 2012 UTC (11 years, 5 months ago) by root
Branch:	MAIN
Changes since 1.105:	+9 -0 lines
Log Message:	* empty log message *
#	User	Rev	Content
1	pcg	1.83	GVPE NEWS
2	pcg	1.57
3	root	1.106	New option OPENSSL_NO_SSL_INTERN. If an application can be compiled
4			with this defined it will not be affected by any changes to ssl internal
5			structures. Add several utility functions to allow openssl application
6			to work with OPENSSL_NO_SSL_INTERN defined.
7			[Steve Henson]
8			TODO: bridge mode, finally?
9
10	root	1.97	- INCOMPATIBLE CHANGE: no longer enable udp protocol if no other
11			protocols are enabled - this is necessary when you have nodes with
12			completely unknown protocols, to force mediated connection requests.
13	root	1.99	- INCOMPATIBLE CHANGE: dns transport protocol bumped to version 2.
14	root	1.105	- nodes would sometimes declare transport endpoints valid despite
15			the protocol not being configured locally.
16	root	1.106	- new global configuration options: chroot, chuser, chuid, chgid,
17			to chroot to a specified or anonymous new root, and change user id.
18	root	1.102	- configure didn't detect openssl 1.0 because SHA1_version became private
19			(patch by TANIGUCHI Takaki).
20	root	1.99	- core protocol version 0.1, compatible with older releases.
21	root	1.97	- fix a bug where nodes would tell the other side that it supports
22			the same protocols as that other side, instead of its own.
23	root	1.98	- add zlib when found, as openssl depends on it in newer versions.
24			- work around append-bugs in uclibc by using an extra seek.
25	root	1.99	- new "include" directive for the config file.
26	root	1.100	- gvpectrl no longer evaluates any "on" directives.
27	root	1.102	- icmp and rawip protocols weren't upgradable to each other.
28	root	1.99	- major, but incremental, dns transport improvements:
29			- do not simply abort in some error cases in the dns transport,
30			but try to recover.
31			- allow lowercase/uppercase alises for base-n encodings that do
32			not rely on case.
33			- use base26 instead of base22 encoding for dns syn's, and
34			base36 instead of base22 for headers (saves one byte/packet).
35			- back off far quicker in dns tunnel when idling - increases
36			latency on an idle link somewhat, but avoids hundreds of
37			needless packets.
38			- poll more aggressively when idling in dns (poll once per
39			second as opposed to once per 5 seconds).
40	root	1.104	- reduce dns send payload size to allow greater rate of ack
41			messages (should help sack and ipv6).
42	root	1.103	- allow for ip options in rawip/icmp transports, even though gvpe
43			doesn't generate them.
44	root	1.101	- upgrade to libev 4 API.
45	root	1.97
46			2.24 Sat Feb 12 05:15:48 CET 2011
47			- protocol version 0.1, compatible with older releases.
48	root	1.95	- due to a bug, when packets were lost, a connection could go into a
49	root	1.94	state where a ping/connection request from another node would be
50	root	1.96	ignored, leading to connections not being re-established.
51	pcg	1.93	- due to a bug, compression was almost always enabled.
52	pcg	1.92	- enable-max-mtu was actually enable-mtu, contrary to documentation.
53	pcg	1.90	- add nfmark support.
54	pcg	1.91	- add node-change script support.
55			- new DESTSI variable for node-xxx scripts.
56	root	1.95	- updated codingstyle a bit, declared truly static stuff as static.
57	root	1.96	- clarify compression docs.
58	pcg	1.90
59	pcg	1.89	2.22 Sun Feb 1 17:25:28 CET 2009
60	root	1.97	- protocol version 0.1, compatible with older releases.
61	pcg	1.86	- enabled icmp/tcp/http-proxy protocols by default.
62	pcg	1.85	- updated copyright in program greetings.
63	pcg	1.86	- fix some configure messages.
64	pcg	1.87	- updated to libev 3.52.
65	pcg	1.85
66	pcg	1.84	2.21 Wed Sep 3 06:56:27 CEST 2008
67	root	1.97	- protocol version 0.1, compatible with older releases.
68	pcg	1.84	- add missing ev++.h include header to tarball, which everybody
69			who tested it apparently had in their include path :(. Caught
70	pcg	1.85	by Karl Kleinpaste and Marcus Kong.
71	pcg	1.84
72	pcg	1.83	2.2 Mon Sep 1 06:28:09 CEST 2008
73	root	1.97	- protocol version 0.1, compatible with older releases.
74	pcg	1.78	but upgrade is recommended to due changed ondemand behaviour.
75			- new per-node options max-ttl and max-queue.
76	pcg	1.72	- convert from iom.C to libev, a high-performance event loop
77	pcg	1.71	(http://software.schmorp.de/pkg/libev).
78	pcg	1.73	- tcp connections were leaking in some cases.
79	pcg	1.78	- retry more aggressively (once/s) to establish a connection if
80			new packets arrive for it.
81	pcg	1.75	- save a lot of setsockopt calls when the tos doesn't change.
82	pcg	1.78	- honor disabled even on initial connect attempt.
83	pcg	1.76	- changed callback mechanism to be slightly less portable
84			but more efficient mechanism (standards-compliant c++ compilers
85			should work).
86	pcg	1.80	- increased receive window positive size, to allow for massive
87			packet loss due to occasional longer drop-outs.
88			- send RST when a positive window size violation is detected, but
89			not in other cases, to reconnect more quickly.
90	pcg	1.83	- upgraded liblzf to version 3.4.
91	pcg	1.77	- dropped -fno-exceptions due to ev++.h using it.
92	pcg	1.81	- node-up/down scripts are now run in sequence.
93			- new -q switch for gvpectrl, for when you run it often.
94	pcg	1.82	- work around the horribly inconsistent, ad-hoc, ever-changing
95			and broken texinfo syntax. YMMV. avoid texinfo.
96	pcg	1.83	- keepalive is more aggressive now, sensding ping's every 3 seconds
97			and killing the conenction after 15 seconds.
98	pcg	1.71	- bugfixes.
99
100	pcg	1.70	2.01 Thu Mar 29 19:26:04 CEST 2007
101	pcg	1.69	- protocol version 0.1, compatible with older releases.
102	pcg	1.68	- bugfix of callback.h, might have cause callback return values to
103			be corrupted on architectures like sparc before.
104	pcg	1.69	- dns transport retries more aggressively.
105	pcg	1.70	- updated documentation, improved dns transport reliability
106			and throughput.
107			- added experimental support for sha256 and sha512 digests.
108	pcg	1.67
109	pcg	1.66	2.0 Mon Dec 5 13:59:26 CET 2005
110	pcg	1.56	- protocol version 0.1, compatible with older releases.
111	pcg	1.65	- implement allow-direct, deny-direct node config statements.
112	pcg	1.59	- implemented != for sockinfo. This fixes a bug where
113			gvpe sent packets to the old ip address of another host
114			even though it had received packets from it's new address.
115	pcg	1.61	This only causes problems if you forget to -HUP your gvpe after
116	pcg	1.59	your ip address changed, which is required.
117	pcg	1.64	- sets close-on-exec flag on tcp connections. This fixes a bug
118			where child processes kept tcp connections open and caused
119			connections to fail when only one side can connect.
120			- fixed a bug in receive sequence checking that made gvpe
121			accept out-of-window packets in most cases.
122	pcg	1.61	- tighter limit for the maximum sequence # to avoid overflow
123			conditions + allow more headroom for packet reordering.
124	pcg	1.66	- replace some asserts that trapped config mismatches by
125	pcg	1.62	more useful log messages.
126	pcg	1.63	- fix spurious extra newline in some log messages.
127	pcg	1.56
128	pcg	1.55	1.9 Tue Apr 19 06:21:50 CEST 2005
129	pcg	1.56	- protocol version 0.1, compatible with older releases.
130	pcg	1.49	- WARNING: this version checks the return value of if-up etc.
131			scripts and exits on failure.
132	pcg	1.50	- IMPORTANT: run if-up/node-up etc. scripts via /bin/sh.
133			- IMPORTANT: interface initialization (MAC, MTU) is now done
134			automatically in most configurations.
135	pcg	1.54	- options can now be specified on the gvpe command line, too.
136	pcg	1.49	- make some DNS transport values configurable and document them.
137			- improved OS specific information in gvpe.osdep(5).
138	pcg	1.51	- new tap device type "native/darwin", that supports the tap
139	pcg	1.45	driver available for darwin (thanks to matthew mead who tested
140	pcg	1.47	it out with me in a long session). tincd/darwin is still available.
141	pcg	1.51	- new device type "tincd/bsd", which is a newer version of the
142			*bsd-drivers taken from tinc.
143	pcg	1.46	- fixed a bug in relying on the order of global construction
144			when tcp transport was enabled. The fix makes it use no
145			cpu time unless it is in use, too.
146	pcg	1.52	- information about other nodes is now available to if-up etc. scripts.
147			- the value of the config variable if-up-data is passed to the if-up
148			etc. scripts.
149	pcg	1.49	- skip unparsable config lines with a warning instead of stopping
150			parsing and continuing with a certainly unusable config.
151	pcg	1.43
152	pcg	1.41	1.8 Fri Mar 18 00:58:55 CET 2005
153	pcg	1.56	- protocol version 0.1, compatible with older releases.
154	pcg	1.36	- enable-udp = yes is now default only when no other protocols
155			are enabled. otherwise it is disabled unless explicitly enabled.
156	pcg	1.40	- implemented dns tunneling (experimental now and in the future).
157	pcg	1.39	- remove support for pre-release version protocol.
158	pcg	1.41	- updated tincd drivers (rev 1433), added uml_socket driver, documented
159			tincd drivers a bit better.
160	pcg	1.40	- document icmp configuration values.
161			- document transport protocols in gvpe.protocol(7).
162			- remove unused ChangeLog file.
163	pcg	1.41	- created a mailinglist at gvpe@lists.schmorp.de.
164			- added an exemption to allow distribution of binaries linked against
165			OpenSSL, as suggested by Guus Sliepen (author of tinc). No
166			GNUTLS conversion in sight.
167	pcg	1.42	- some portability fixes with respect to --disable-nls.
168	pcg	1.36
169	pcg	1.35	1.7 Tue Feb 22 23:58:59 CET 2005
170	pcg	1.32	- protocol version 0.1, compatible with older releases.
171	pcg	1.26	- first gnu release.
172	pcg	1.27	- documented the special value 1 for router-priority.
173	pcg	1.26	- renamed vped => gvpe and vpectrl => gvpectrl, as well as
174			vped.conf => gvpe.conf.
175	pcg	1.29	- new per-node option "max-retry".
176	pcg	1.22	- asymmetric rekeying behaviour, so hosts don't rekey simultaneously.
177	pcg	1.24	- new configure option --enable-static-daemon.
178	pcg	1.23	- fix configure --help output.
179	pcg	1.26	- many documentation layout fixes.
180	pcg	1.28	- synced iom.[Ch] from rxvt-unicode.
181	pcg	1.34	- try to cope with some non-monotonic time changes.
182	pcg	1.30	- revert to locale.h - a usual, clocale is nonfunctioning on macosx.
183	pcg	1.32	- considerably improved pod2texi and the resulting texi doc.
184	pcg	1.22
185	pcg	1.21	1.6.1 Wed May 12 14:48:20 CEST 2004
186	pcg	1.32	- protocol version 0.1, compatible with older releases.
187	pcg	1.22	- fix -c switch that has been broken due to a last-minute fix
188			to option and config file parsing.
189	pcg	1.21
190	pcg	1.20	1.6 Mon May 10 20:55:10 CEST 2004
191	pcg	1.22	- protocol version 0.1, compatible with older releases.
192			- do not RESET on out-of-sequence packets (good for wireless).
193			- various non-security-related bugfixes.
194			- c++ify (at least make it compile with g++-3.4, which should make
195			it a little bit more standard c++).
196	pcg	1.19
197	pcg	1.18	1.5 Fri Jan 30 00:50:04 CET 2004
198	pcg	1.22	- protocol version 0.1, compatible with older releases.
199			- vped will refuse to start when hostkey and public key do not match.
200			- updated lzf code to version 1.2.
201			- better error reporting for "unusual" conditions, like failing
202			to allocate memory, that should not normally happen and
203			will otherwise result in spurious other error messages. Also
204			adds paranoid checks in case openssl's API changes in a bad way.
205			- fix a bug where queued vpn packets were cleared to zero. while
206			this doesn't affect security, it did cause warning messages and
207			unnecessary connectivity delays.
208	pcg	1.15
209	pcg	1.13	1.4 Sat Jan 17 15:49:21 CET 2004
210	pcg	1.22	- protocol version 0.1, compatible with older releases.
211			- better retry behaviour on key mismatch.
212			- use select-based io_manager instead of poll-based one.
213			- share io manager between rxvt-unicode and vpe.
214			- sooo many *BSD workarounds because no BSD I could find is even
215			remotely POSIX-compatible.
216	pcg	1.11
217	pcg	1.10	1.2 Fri Oct 17 03:44:44 CEST 2003
218	pcg	1.22	- protocol version 0.1.
219			- tincd kernel interface code imported, more supported platforms
220			(native/linux (2.4), tincd/linux (2.2 and 2.4), tincd/freebsd,
221			native/cygwin).
222			- added primitive ethernet emulation (ipv4 only), which allows
223			the following platforms that only have tun drivers to work:
224			/* none yet tested */
225			- portability workarounds, especially for unfriendly freebsd
226			- very minor bugfixes
227			- warnings when choosing insecure ciphers/hashes
228			- reduced default hmac length to 8.
229			- cvs now contains configure, Makefile.in and other generated files.
230			- added doc/complex-example to the distribution.
231
232			1.0 distant past
233			- protocol version 0.1.
234			- tweaked various timeouts to help very slow (486) class
235			machines or nets with many hosts.
236			- tweaked rate-limiting to be more forgiving for hosts
237			connecting through routers (not a fix).
238	pcg	1.2