path: root/NEWS

=============================================================================
OpenNHRP ChangeLog                   http://sourceforge.net/projects/opennhrp
=============================================================================

Detailed changelog is available via Git history via web:
http://opennhrp.git.sf.net/git/gitweb.cgi?p=opennhrp;a=blob;f=NEWS;hb=HEAD

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 opennhrp 0.14.1 - released 30/Jan/2013
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 - fix: recover from dns lookup failure of dynamic-map entries
 - fix: correct the multicast capture rules (to not send traffic indication
   about multicast packets)

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 opennhrp 0.14 - released 12/Dec/2012
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 - licensing terms changed to MIT License
 - fix: do not lock up if there's routing loop for protocol address
 - fix: handle low holding time for resolved entries properly
 - fix: dynamically allocate packet filter code to accomodate large
   routing tables

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 opennhrp 0.13.1 - released 22/Jun/2012
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 - fix: make "local-nbma" selector work properly if there are multiple gre
   interfaces (reported by Alex Levit)
 - fix: do not call opennhrp-script "interface-up" hook if the interface
   being created and in down state (reported by Alex Levit)

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 opennhrp 0.13 - released 25/Dec/2011
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 - feature: add admin "interfaces show" command to display information about
   the interface cache
 - feature: support GRE interface binding changes (update gre nbma address
   properly, and purge peer cache) to support dual ISP setups with failover
 - fix: send registration reply even when all bindings are rejected
 - fix: fix really the holding-time to apply to shortcut-target
 - fix: fix hop count handling
 - fix: various memory leaks fixed
 - fix: fix memory corruption in the hlist structure (would be visible when
   opennhrp is acting as NHS with heavy traffic)

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 opennhrp 0.12.3 - released 19/Aug/2011
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 - feature: export reason why peer-down trigger was executed; and implement
   'lowerdown' opennhrpctl command for racoon hook to indicate that the
   IPsec SA has died (opennhrp-script can then avoid the unneccessary and
   possibly harmful call to racoonctl)
 - fix: route NHRP queries always via NHS (because ipsec initial-contact
   mechanism for purging dead IPsec SAs triggers after NHRP rediscovery,
   and if remote peer was rebooted, the direct link might be dead)
 - fix: don't negative cache entries on timeout (timeout is indication of
   temporary error: none of NHS' is reachable)
 - fix: don't reply to kernel's ARP queries using local route entries.
   this also prevents bad shortcut-routes if the local GRE prefix is
   a sub-prefix of routed subnet over the GRE

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 opennhrp 0.12.2 - released 07/Jul/2011
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 - fix: regression introduced in 0.12's policy routing changes that
   shortcuts for in-NBMA network would not work unless using dynamic-map
   NHS configuration (from David Ward)

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 opennhrp 0.12.1 - released 24/Mar/2011
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 - feature: export tunnel GRE key to opennhrp-script
 - fix: build error against certain kernel versions and architectures
 - fix: update registrations when 1/3 of the holding-time has passed as
   per rfc recommendation
 - fix: fix holding-time to apply properly to shortcut-target blocks

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 opennhrp 0.12 - released 01/Nov/2010
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 - feature: preliminary support for policy routing. cache kernel routes for
   each gre device and use them for routing lookups. nhrp shortcut routes
   should be in separate routing table. this allows nhrp message routing to
   always happen using bgp/ospf routes (for shortcut refreshes) and fixes
   shortcuts to converge with the main routing information.
 - feature: shortcut-target config option for subnet specific holding-time
   overrides and aggregation of local subnet to "summary shortcut"
 - fix: delete shortcut-routes if their gateway is removed to force renewal
   of the route (shortcut gateway can change due to bgp/ospf routing change)
 - fix: actually remove dynamic-nhs from peers if it's A entry is removed
 - fix: disallow duplicate cached entries with dynamic-nhs entries
 - randomize retry timer and increase script timeouts
 - improve logging a bit

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 opennhrp 0.11.5 - released 16/Mar/2010
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 - clear negative cached entries for peers which sends resolution request
 - use several netlink sockets to receive notifications so we don't lose
   sync on all of them
 - fix shortcut renewals
 - libev updated to version 3.9
 - signal handling fixed

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 opennhrp 0.11.4 - released 04/Mar/2010
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 - multicast packet relay fix
 - netlink buffer sizes increased

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 opennhrp 0.11.3 - released 30/Oct/2009
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 - handle dns lookup failures properly
 - fix failover for shortcut routes
 - detect forwarding loops for indications
 - some code cleanups

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 opennhrp 0.11.2 - released 25/Sep/2009
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 - fixed libev usage bug that could cause crash on script timeout
 - make lock file closed on exec so opennhrp-script instances won't keep
   opennhrp daemon lock
 - fixes traffic indications to work again (captured packet length was
   not right)

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 opennhrp 0.11.1 - released 31/Aug/2009
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 - update libev version to 3.8
 - more permssive build for warnings (libev generates some warnings)
 - fix packet filter installation timer
 - fix a false assert for peer deletion
 - disable icmp redirect properly
 - minor fixes to documentation and example script

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 opennhrp 0.11 - released 18/Jun/2009
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 - introduce 'dynamic-map' directive to autodetect all next hop servers
   from a domain name with multiple A entries
 - 'multicast' directive to better control softswitching of multicast
   packets
 - use libev instead of the self written event handling code
 - enable Forward NHS extension for Traffic Indications to drop the message
   after it has visited all NHS:es (otherwise it would loop between them
   until ttl expires)
 - performance optimizations to packet capturing, multicast packet process
   switching, handling of registration requests and logging
 - fix 64-bit compatibility issues
 - some code documentation and clean ups

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 opennhrp 0.10.3 - released 04/May/2009
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 - fix handling of c-ares timeouts
 - fix cancellation of asynchronous operations in peer cache
 - fix control socket default location (broke on makefile rewrite)
 - code clean up (rename reference counting functions)

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 opennhrp 0.10.2 - released 28/Apr/2009
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 - various safety measures in case of off-nbma routing loops
 - fix a bug which caused static entries without 'register' to get deleted
 - try to combine shortcut routes to get less nhrp cache entries

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 opennhrp 0.10.1 - released 22/Apr/2009
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 - fix the breakage in build system after the rewrite
 - fix registration to servers when using domain names

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 opennhrp 0.10 - released 21/Apr/2009
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 - use c-ares library to make dns queries asynchronous
 - fix mtu handling from registration requests
 - avoid opennhrp-script zombie floods by reaping children between
   processing registration request packets
 - rewrite build system to something similar to kbuild
 - migrate to git

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 opennhrp 0.9.3 - released 20/Feb/2009
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 - when public IP changes purge all related peer entries (opennhrp should
   now survive and automatically re-register when dhcp enforces IP change)
 - remove an assertation that was invalid (could cause opennhrp to abort
   when acting as NHS in some situation)
 - make monotonic clock work with old uclibc

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 opennhrp 0.9.2 - released 31/Dec/2008
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 - pid file locking change in 0.9.1 broke daemonization, make it work again

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 opennhrp 0.9.1 - released 31/Dec/2008
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 - fix a crash in peer cache enumeration
 - update opennhrp-script to show how to add host route with mtu
 - lock pid file as first thing (to prevent accidental startup when opennhrp
   is already running)

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 opennhrp 0.9 - released 26/Dec/2008
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 - use monotonic system clock if available
 - allow startup even if dns names are unresolveable
 - make nhrp holding time configurable
 - Cisco NHS specific feature: send cisco compatible purge if unique NBMA
   mapping already exists (to re-register when NBMA address changes)
 - additional opennhrp-script example with ipsec certificate checking
 - some effort to make opennhrp compile on old system (in limited mode)
 - detect NBMA MTU from interface and transmit it over NHRP and pass it to
   opennhrp-script (to insert manual NBMA routes if path MTU discovery
   does not work)

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 opennhrp 0.8 - released 03/Oct/2008
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 - licensing terms changed to GPL version 2 or later
 - send purge request to shortcut subnets after registration
 - clear redirection rate limiting cache for purge request addresses
 - new admin commands: "redirect purge" and "schedule"
 - rename admin commands: "flush", "purge" and "show" to have "cache" prefix
   (accepts still old style commands for a while)
 - make logging a bit less verbose
 - minor fixes to renewals of peers and shortcut routes
 - fix a memory leak

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 opennhrp 0.7.1 - released 18/Jun/2008
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 - use only primary interface addresses as nbma source address
 - fix a access to freed memory in certain special cases of peer cache
   enumeration
 - fix a memory leak

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 opennhrp 0.7 - released 30/Apr/2008
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 - catch multicast packets and send them as multiple unicast packets
   to all known peers
 - new script events: interface-up (to clear neighbor and route caches
   on startup) and peer-register (to e.g. validate peer protocol ip address
   from the ipsec certificate)
 - parse nat-oa for cached entries
 - routing regression fixes (don't try to resolve unreachable statically
   mapped peers)
 - fix deletion of multiple cache entries from enumeration code
   (crashed in some rare circumstances) 
 - check for IFA_LOCAL attribute presence before using it (fixes a crash)
 - fix bug which caused negative cache entries to prevent registration
   of the protocol address
 - code cleanups and some optimizations

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 opennhrp 0.6.2 - released 04/Apr/2008
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 - accept shortcuts when a route to shortcut-destination interface exists
   (in addition to local addresses in that interface)
 - handle netlink link, address and route deleted notifications properly
 - print error if opennhrp-script fails for some reason
 - change peer flags: 'lower-up' means opennhrps-script was ran succesfully,
   'up' means registration has been also done (if it was required)
 - fix matching of local-nbma selector when gre interface has no remote
   address and is not explicitely bound to other interface
 - fix admin interface to give 'Affected-Entries' result correctly
 - fix config file reading bug; handle last keyword even if there is no
   final new line
 - code cleanups and optimizations

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 opennhrp 0.6.1 - released 20/Mar/2008
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 - fix a crash in error path of packet forwarding
 - fix routing of locally generated traffic indications

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 opennhrp 0.6 - released 19/Mar/2008
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 - accept hostname (domain name) as an NBMA address in config file
 - sanitize admin interface: accept cache entry selectors on
   flush, purge and show commands; slight changes to unix socket protocol
 - multiple gre interfaces do not share nhrp cache anymore
 - opennhrp-script: NHRP_SRCADDR and NHRP_SRCNBMA added
 - do not let opennhrp-script inherit sockets file descriptors
 - run peer-down script when peer was purged via admin interface
 - add option -V to show version
 - add option -v to show debug log messages (to see nl-arp messages)
 - performance improvements

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 opennhrp 0.5 - released 05/Mar/2008
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 - opennhrpctl command line tool
   - list nhrp cache
   - purge entries by protocol or nbma address
   - flush entries
 - daemon mode
 - allow comments in configuration file
 - various bug fixes
   - flush neighbor cache when interface is found
   - do not create proxy arp entries when static mapping exists

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 opennhrp 0.4 - released 04/Jan/2008
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 - first announced release