X-Git-Url: http://git.sameswireless.fr/l2tpns.git/blobdiff_plain/071f1d77ebc8cd92cc4896ad10959234910c2b7e..59411b879992b8b6b9a5f8d42ae102719f6b245c:/Changes diff --git a/Changes b/Changes index 3d6cc27..aad8483 100644 --- a/Changes +++ b/Changes @@ -1,39 +1,164 @@ -* Sun May 8 2005 Brendan O'Dea 2.1.0 +* Thu Jan 20 2011 Brendan O'Dea 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. + +* Mon Dec 18 2006 Brendan O'Dea 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 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 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 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 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 2.1.14 +- Run PLUGIN_RADIUS_ACCOUNT for Start records. + +* Wed Dec 7 2005 Brendan O'Dea 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 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 2.1.11 +- Fix fragment handling in ip_filter. +- Exclude counter when comparing filter rules. + +* Sat Nov 5 2005 Brendan O'Dea 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 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 2.1.8 +- Move code from signal handlers into mainloop, avoiding a race + condition when forking CLI. + +* Fri Sep 16 2005 Brendan O'Dea 2.1.7 +- This time, for sure: really fix Protocol-Reject. + +* Fri Sep 16 2005 Brendan O'Dea 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 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 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 2.1.3 +- Fail IPCP negotiation only on ConfigRej of IP-Address. + +* Wed Aug 10 2005 Brendan O'Dea 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 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 2.1.0 - Add IPv6 support from Jonathan McDowell. - 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. -- 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. -- 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. -- 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. @@ -41,23 +166,91 @@ - 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). -- 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). - Use cli_error() for error messages and help. -- Add a Cisco-Avpair with intercept details to RADIUS Start/Stop - records. - 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. -- Fix leak in session freelist when initial RADIUS session allocation - fails. -- Don't process C_LASTSEEN unless we're a master (otherwise a crashed - master kills all slaves once restarted). +- 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 2.0.13 - Better cluster master collision resolution: keep a counter of state