Final development LAC functionality.

[l2tpns.git] / Changes

diff --git a/Changes b/Changes
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-* Thu Mar 10 2005 Brendan O'Dea <bod@optusnet.com.au> 2.1.0
+* 2012 Fernando Alves <fernando.alves@sameswireless.fr> 2.2.1-2fdn x
+- Fix MLPPP functionality.
+- Fix the inverted "delete/add" of the routes, in cluster mode.
+- Add a echo_timeout configuration option.
+- Add a idle_echo_timeout configuration option.
+- Add LAC functionality, possibility to forward ppp to Remote LNS.
+
+* Sun Sep 11 2011 Brendan O'Dea <bod@optus.net> 2.2.x
+- Apply MLPPP patch from Muhammad Tayseer Alquoatli.
+- Apply patch from Michael O to avoid sending multiple CDNs.
+- Apply patch from Cyril Elkaim to fix an issue with MacOS.
+- Apply patch from Geoffrey D. Bennett to fix retry of control packets.
+- Apply patch from Geoffrey D. Bennett to handle RADIUS Class attribute.
+- Bump heartbeat version to handle Class entry in session (v6).
+- Re-arrange session struct to remove padding.
+- Update cluster code to handle v6 packets.  Drop compatability for pre-v5.
+- Clean up some compiler errors.
+
+* Mon Dec 18 2006 Brendan O'Dea <bod@optus.net> 2.2.0
+- Only poll clifd if successfully bound.
+- Add "Practical VPNs" document from Liran Tal as Docs/vpn .
+- Add Multilink support from Khaled Al Hamwi.
+- Remove non-working setuid option.
+- Convert manual.html to Docbook.
+- Kludge around problem with Netgear DM602 authentication.
+- Add session/idle timeouts (Graham Maltby).
+- Use result code AVP to set Acct-Terminate-Cause is disconnect cause
+  AVP is not present.
+- Add radius_bind_{min,max} to simplify firewalling of RADIUS ports.
+- Fix sign problem with reporting of unknown RADIUS VSAs.
+- Allow DNS servers to be specified either using the old or new
+  vendor-specific Ascend formats.
+- Security [CVE-2006-5873]: Rhys Kidd identified a vulnerability in the
+  handling of heartbeat packets.  Drop oversize heartbeat packets.
+- Don't send interim records before session start (Daryl Tester).
+- Add "shutdown" and "reload" CLI commands (Daryl Tester).
+
+* Tue Apr 18 2006 Brendan O'Dea <bod@optus.net> 2.1.18
+- Don't shutdown on TerminateReq, wait for CDN.
+- Interpret "local" direction correctly (as LAC) in disconnect AVPs.
+
+* Thu Apr 13 2006 Brendan O'Dea <bod@optus.net> 2.1.17
+- Fix IPCP length test to allow Terminate-Request (4 bytes).
+- Send nsctl responses back using the correct source address (thanks ltd).
+- Similarly set the source for DAE responses; use bind_address when
+  handling forwarded packets on the master.
+- Add Acct-Terminate-Cause to RADIUS stop records.
+
+* Thu Feb 23 2006 Brendan O'Dea <bod@optus.net> 2.1.16
+- Send configured magic-no in LCP EchoReq when LCP is opened.
+- Correct addition of single IP to pool (Jonathan Yarden).
+- Ensure session changes from LCP ConfigReq/ConfigNak are sent to cluster.
+- Verify that RADIUS packets come from a configured server (Jonathan Yarden).
+- Avoid endless loop in processipcp, processipv6cp.
+- Additional length checks in processlcp.
+- Allow peer to request a new magic-number, or to disable magic-numbers.
+- Decrease ip_conntrack_tcp_timeout_established to 5hrs (table filling).
+
+* Mon Dec 19 2005 Brendan O'Dea <bod@optus.net> 2.1.15
+- Drop backtrace.
+- Reduce logging of LCP EchoReply packets.
+- Break LCP configure loop with shutdown.
+- Limit value of MRU of 1492 (rfc2516).
+- Tun MTU should be MRU (not MRU+4).
+- Add Service-Type/Framed-Protocol to RADIUS records (Paul Martin).
+
+* Fri Dec 9 2005 Brendan O'Dea <bod@optus.net> 2.1.14
+- Run PLUGIN_RADIUS_ACCOUNT for Start records.
+
+* Wed Dec 7 2005 Brendan O'Dea <bod@optus.net> 2.1.13
+- Add test/ping-sweep.
+- Apply spec changes from Charlie Brady: use License header, change
+  BuildRoot to include username.
+- Fix IPCP negotiation of secondary DNS server, reported by Jon Morby.
+- Clean up sessiont, removing some unused fields.
+- Remove unused "MAC" config type.
+- Reject unknown/unconfigured protocols on the master.
+- Sanity check MRU before using in ppp_code_rej, protoreject.
+
+* Thu Nov 17 2005 Brendan O'Dea <bod@optus.net> 2.1.12
+- Set MTU on tunnel interface so the kernel will re-fragment large
+  packets to within MRU.
+- Fix TCP checksum recalc.
+- NAK silly MRU values from peer.
+
+* Mon Nov 14 2005 Brendan O'Dea <bod@optus.net> 2.1.11
+- Fix fragment handling in ip_filter.
+- Exclude counter when comparing filter rules.
+
+* Sat Nov 5 2005 Brendan O'Dea <bod@optus.net> 2.1.10
+- Add scripts/l2tpns-capture.
+- Fix LCP Echo frequency.
+- Add Framed-Route entries to RADIUS records.
+- Reset restart counters correctly.
+- Reset timers on sending ConfigReq.
+- Only send one RADIUS Start record, even if IPCP is restarted.
+
+* Tue Oct 11 2005 Brendan O'Dea <bod@optus.net> 2.1.9
+- Fix Calling-Station-Id in RADIUS accounting records (Slobodan Tomic).
+- Fix RADIUS authentication on DAE responses.
+- Don't send tunnel HELLO when there are pending control messages.
+- Move plugin_radius_reset from *ctl to auto* plugins.
+- Add Cisco-AVPairs to RADIUS accounting records via plugin_radius_account.
+
+* Mon Sep 19 2005 Brendan O'Dea <bod@optus.net> 2.1.8
+- Move code from signal handlers into mainloop, avoiding a race
+  condition when forking CLI.
+
+* Fri Sep 16 2005 Brendan O'Dea <bod@optus.net> 2.1.7
+- This time, for sure: really fix Protocol-Reject.
+
+* Fri Sep 16 2005 Brendan O'Dea <bod@optus.net> 2.1.6
+- Any traffic on a tunnel resets lastrec, not just control messages.
+- Use a unique identifier for LCP.
+- Fix Code-Reject/Protocol-Reject.
+- Add l2tp_mtu configuration option, used to define MRU, MSS.
+- Adjust TCP MSS options in SYN and SYN,ACK packets to avoid
+  fragmentation of tcp packets.
+
+* Sat Sep 3 2005 Brendan O'Dea <bod@optus.net> 2.1.5
+- Avoid Code-Reject loop.
+- Increase size of PPP buffers to MAXETHER.
+- Bug fixes for CLI ringbuffer and tunnel HELLO from Yuri.
+- Restart rather than halt BGP on receipt of CEASE (Dominique Rousseau).
+- Add cluster_mcast_ttl option to allow a cluster to span multiple
+  subnets (suggested by Tim Devries).
+
+* Mon Aug 29 2005 Brendan O'Dea <bod@optus.net> 2.1.4
+- Drop level of "Unexpected CHAP message" log.
+- Fix parsing of ProtocolRej (allow 1 or two byte protocols).
+- Handle rejection of MRU negotiation by peer.
+- Use local hostname for tunnel in SCCRP (Alex Kiernan).
+
+* Wed Aug 17 2005 Brendan O'Dea <bod@optus.net> 2.1.3
+- Fail IPCP negotiation only on ConfigRej of IP-Address.
+
+* Wed Aug 10 2005 Brendan O'Dea <bod@optus.net> 2.1.2
+- Clear cluster_master on election so that slaves will accept a new master.
+- Provide more comments/defaults in etc/startup-config.default.
+- Add DAE support (PoD/CoA) from Vladislav Bjelic.
+- Clean up new warnings from gcc 4.0.
+- Replace flags used for LCP/IPCP with state machine.
+- Include Acct-Session-Time in interim records.
+- Fix DAE vector, generateload (Alex Kiernan).
+- Replace RSA MD5 with public domain version.
+
+* Tue Jun 14 2005 Brendan O'Dea <bod@optusnet.com.au> 2.1.1
+- Add missing newline to backtrace macro.
+- Don't send CDN for each session when shutting down tunnels (this is
+  implicit).
+- Move tunnel shutdown from SIGQUIT signal handler to be run once from
+  still_busy().  Reject new tunnels/sessions while in the process of
+  shutting down.
+- Clarify usage of shutdown signals in documentation.
+- Always initialise PRNG.
+- Sanity check length of random_vector.
+- Fix segv in unhide_value.
+- Ping new master when we get C_MASTER and delay next election to allow
+  the unicast limp-along code to kick in if required.
+
+* Sun Jun 5 2005 Brendan O'Dea <bod@optusnet.com.au> 2.1.0

 - Add IPv6 support from Jonathan McDowell.
 - Add IPv6 support from Jonathan McDowell.

-- Add CHAP support from Jordan Hrycaj (work in progress).
+- Add CHAP support from Jordan Hrycaj.
+- Add interim accounting support from Vladislav Bjelic.
+- Negotiate MRU, default 1458 to avoid fragmentation.

 - Sanity check that cluster_send_session is not called from a child
   process.
 - Sanity check that cluster_send_session is not called from a child
   process.

-- Throttle outgoing LASTSEEN packets to at most one per second for a
-  given seq#.
-- More DoS prevention: add packet_limit option to apply a hard limit
-  to downstream packets per session.

 - Use bounds-checking lookup functions for string constants.
 - Add enum for RADIUS codes.
 - Make "call_" prefix implict in CSTAT() macro.
 - Fix some format string problems.
 - Use bounds-checking lookup functions for string constants.
 - Add enum for RADIUS codes.
 - Make "call_" prefix implict in CSTAT() macro.
 - Fix some format string problems.

-- Fix "clear counters".
-- Log "Accepted connection to CLI" at 4 when connection is from localhost
-  to reduce noise in logs.
-- Show time since last counter reset in "show counters".

 - Remove "save_state" option.  Not maintained anymore; use clustering
   to retain state across restarts.
 - Remove "save_state" option.  Not maintained anymore; use clustering
   to retain state across restarts.

-- Ensure that sessionkill is not called on an unopened session (borks
-  the freelist).
-- Bump MAXSESSION to 60K.
-- Fix off-by-one errors in session/tunnel initialisation and
-  sessiont <-> sessionidt functions.
-- Use session[s].opened consistently when checking for in-use sessions
-  (rather than session[s].tunnel).
-- Use <= cluster_highest_sessionid rather than < MAXSESSION in a
-  couple of loops.
-- Don't kill a whole tunnel if we're out of sessions.
-- Change session[s].ip to 0 if set from RADIUS to 255.255.255.254;
-  avoids the possibility that it will be interpreted as a valid IP
-  address.
-- Avoid a possible buffer overflow in processpap.
-- Kill session if authentication was rejected.

 - Simplify AVP unhiding code.
 - Add optional "username" parameter to ungarden control, allowing the
   username to be reset before going online.
 - Simplify AVP unhiding code.
 - Add optional "username" parameter to ungarden control, allowing the
   username to be reset before going online.

+- Add result/error codes and message to StopCCN when shutting down tunnels.
+- Add result/error codes to CDN when shutting down sessions.  Sends 2/7
+  (general error, try another LNS) when out of IP addresses, and 3
+  (adminstrative) for everything else (suggestion from Chris Gates).
+- Use cli_error() for error messages and help.
+- Don't use LOG() macro in initdata() until the config struct has been
+  allocated (uses config->debug).
+- Initialise log_stream to stderr to catch errors before the config file
+  is read.
+- Make "show running-config" a privileged command (contains clear text
+  shared secrets).
+- Add sessionctl plugin to provide drop/kill via nsctl.
+- New config option: allow_duplicate_users which determines whether
+  or not to kill older sessions with the same username.
+- Fix byte counters in accounting records.
+- Add Acct-Output-Gigawords, Acct-Input-Gigawords attributes to RADIUS
+  accounting packets.
+- Fix icmp host unreachable to use router address.
+- Include endpoint address in accounting dump files.
+- Convert mainloop to use epoll rather than select.
+- Add note about fragmentation in Docs/manual.html, and a sample
+  iptables rule for MSS clamping.
+- Merge 2.0.22:
+  + Show session open time in "show session"/"show user" detailed output.
+  + Have slaves with BGP configured drop BGP on receipt of a shutdown
+    signal, but hang about for an additional 5s to process any remaining
+    traffic.
+  + Run regular_cleanups after processing the results of the select,
+    looking at a sufficient slice of each table to ensure that all
+    entries are examined at least once per second.
+- Merge 2.0.21:
+  + Cluster changes from Michael, intended to prevent a stray master
+    from trashing a cluster:
+    = Ignore heartbeats from peers claiming to be the master before the
+      timeout on the old master has expired.
+    = A master receiving a stray heartbeat sends a unicast HB back, which
+      should cause the rogue to die due to the tie-breaker code.
+    = Keep probing the master for late heartbeats.
+    = Drop BGP as soon as we become master with the minumum required peers.
+    = Any PING seen from a master forces an election (rather than just
+      where basetime is zero).
+    = A slave which receives a LASTSEEN message (presumably a restarted
+      master) sends back new message type, C_MASTER which indicates the
+      address of the current master.
+  + New config option: cluster_master_min_adv which determines the minimum
+    number of up to date slaves required before the master will drop
+    routes.
+- Merge 2.0.20:
+  + Add handling of "throttle=N" RADIUS attributes.
+  + Fix RADIUS indexing (should have 16K entries with 64 sockets).
+- Merge 2.0.19:
+  + Fix leak in session freelist when initial RADIUS session allocation
+    fails.
+- Merge 2.0.18:
+  + Add a Cisco-Avpair with intercept details to RADIUS Start/Stop
+    records.
+- Merge 2.0.17:
+  + Only send RADIUS stop record in sessionshutdown when there's an ip address.
+  + Reset .die on master takeover (so that dying sessions don't have to
+    hang around until the new master has the same uptime as the old one).
+  + Update .last_packet in cluster_handle_bytes only when there have
+    been bytes received from the modem (dead sessions were having the
+    idle timeout reset by stray packets).
+- Merge 2.0.16:
+  + Ensure that sessionkill is not called on an unopened session (borks
+    the freelist).
+  + Bump MAXSESSION to 60K.
+  + Fix off-by-one errors in session/tunnel initialisation and
+    sessiont <-> sessionidt functions.
+  + Use session[s].opened consistently when checking for in-use sessions
+    (rather than session[s].tunnel).
+  + Use <= cluster_highest_sessionid rather than < MAXSESSION in a
+    couple of loops.
+  + Don't kill a whole tunnel if we're out of sessions.
+  + Change session[s].ip to 0 if set from RADIUS to 255.255.255.254;
+    avoids the possibility that it will be interpreted as a valid IP
+    address.
+  + Avoid a possible buffer overflow in processpap.
+  + Kill session if authentication was rejected.
+- Merge 2.0.15:
+  + More DoS prevention:  add packet_limit option to apply a hard limit
+    to downstream packets per session.
+  + Fix "clear counters".
+  + Log "Accepted connection to CLI" at 4 when connection is from localhost
+    to reduce noise in logs.
+  + Show time since last counter reset in "show counters".
+- Merge 2.0.14:
+  + Throttle outgoing LASTSEEN packets to at most one per second for a
+    given seq#.

 
 * Fri Dec 17 2004 Brendan O'Dea <bod@optusnet.com.au> 2.0.13
 - Better cluster master collision resolution: keep a counter of state
 
 * Fri Dec 17 2004 Brendan O'Dea <bod@optusnet.com.au> 2.0.13
 - Better cluster master collision resolution: keep a counter of state