X-Git-Url: http://git.sameswireless.fr/l2tpns.git/blobdiff_plain/de053c4c4410b785afe2d07be9b099b418dfe131..7b9fe631a04e8a92b0c8f949709dc1a88a1063bc:/Changes?ds=sidebyside diff --git a/Changes b/Changes index 500cffc..56cf0e9 100644 --- a/Changes +++ b/Changes @@ -1,3 +1,277 @@ +* Sun May 22 2005 Brendan O'Dea 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 peers (TODO: pre-emptively + drop routes if the master is late and we are the best candidate). + + 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 a ping, indicating that it's not the master. + +* Mon May 16 2005 Brendan O'Dea 2.0.20 +- Add handling of "throttle=N" RADIUS attributes. +- Fix RADIUS indexing (should have 16K entries with 64 sockets). + +* Sat May 7 2005 Brendan O'Dea 2.0.19 +- Fix leak in session freelist when initial RADIUS session allocation + fails. + +* Tue May 3 2005 Brendan O'Dea 2.0.18 +- Add a Cisco-Avpair with intercept details to RADIUS Start/Stop + records. + +* Mon May 2 2005 Brendan O'Dea 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). + +* Mon Feb 14 2005 Brendan O'Dea 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. + +* Thu Jan 13 2005 Brendan O'Dea 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". + +* Mon Dec 20 2004 Brendan O'Dea 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 + changes, propagated in the heartbeats; the master with the highest # + of changes (that has kept in contact with the LAC through the + outage) prevails. +- Skip newlines in ringbuffer messages to CLI. +- Drop "Session N is closing" message level to 4; don't process PPPIP + packets in this state. +- Use gzip --best for man pages, include pid_file in sample + startup-config (from Jonathan's Debian package patches). +- Read multiple packets off cluster_sockfd as well as udpfd, tunfd in an + attempt to avoid losing the cluster in high load (DoS) conditions. +- Add counters for select_called, multi_read_used and multi_read_exceeded. +- Compress logs. +- Retain counters of shutdown sessions to dump once per minute. +- Use standard uintN_t types for portability. + +* Wed Dec 1 2004 Brendan O'Dea 2.0.12 +- The "This time, for sure!" release. +- Fix throttlectl plugin argument parsing. + +* Wed Dec 1 2004 Brendan O'Dea 2.0.11 +- Don't send a RADIUS start record when ungardening on shutdown. + +* Wed Dec 1 2004 Brendan O'Dea 2.0.10 +- Fix byte ordering of LCP header length (thanks Yuri). +- Increase ip_conntrack_max due to dropped packets. + +* Tue Nov 30 2004 Brendan O'Dea 2.0.9 +- Revise CCP, send ConfigReq once only. +- Don't copy the old buffer into Config{Nak,Rej} LCP responses (oops); + add length checks when appending. +- Do copy the identifier from the request and update length. +- Have makeppp print a backtrace on overflow. +- Check control serial before clearing window, prevents looping tunnel + setup in some instances. +- Implement named access-lists which may be applied to a session + either via Filter-Id RADIUS responses, or using the CLI. +- Drop ip address from LOG. +- autothrottle: revise parsing; ignore lcp:interface-config avpairs + which don't start with serv[ice-policy]. +- Add THANKS file. + +* Sat Nov 20 2004 Brendan O'Dea 2.0.8 +- Ignore gateway address in Framed-Route (from Jonathan McDowell). +- Don't route Framed-IP-Address if contained in a Framed-Route. +- Call sessionshutdown() when a tunnel is dropped rather than + sessionkill() to ensure that RADIUS stop records are sent. +- Cleanup: make a bunch of global functions/variables static. +- Remove reference to old -a command line argument. +- Add l2tpns(8) and nsctl(8) manpages from Jonathan McDowell. +- Add startup-config(5) manpage. +- Revise nsctl to allow arbitrary strings/args to be passed to plugins. +- Add snoopctl, throttlectl plugins. +- Fix deletion from linked list. +- Allow LCP re-negotiation after connection completes (thanks Yuri). + +* Mon Nov 15 2004 Brendan O'Dea 2.0.7 +- Fix socket creation in host_unreachable() (thanks to Bjørn Augestad) +- Don't assume BGP peer sends back negotiated hold time, pick smallest + +* Thu Nov 11 2004 Brendan O'Dea 2.0.6 +- Make BGP keepalive/hold time configurable +- Revise BGP config to use "router bgp AS" syntax (requires libcli >= 1.8.2) + +* Tue Nov 9 2004 Brendan O'Dea 2.0.5 +- Handle routing properly in lone-master case +- Fix intercepts: don't double-snoop throttled customers, ensure + byte/packet counts are only updated once +- Add a callback to allow plugins to fetch values from the running config + +* Mon Nov 8 2004 Brendan O'Dea 2.0.4 +- Added setrxspeed plugin +- Added peer_address config option +- Rename wrapper macros to LOG()/LOG_HEX(), use p->log() in plugins +- Replace some PPP{PAP,CHAP} magic numebrs with constants +- Nak asyncmap (unless == 0) +- Bundle ConfigRej options +- Clean up initlcp handling + +* Wed Nov 3 2004 Brendan O'Dea 2.0.3 +- Added support for hidden AVPs by Robert Clark +- l2tpns-chap-response.patch from Robert Clark +- Merge l2tpns-config-hostname.patch from Robert Clark +- l2tpns-dont-timeshift-unidirectional-traffic.patch from Robert Clark - Dump accounting data if cin OR cout is non-zero +- Don't write accounting files if no accounting dir is set - Yuri +- Fix checking for mmap success +- Renegotiate MRU - Yuri +- Take LCP ConfigReq length from the packet length field - Yuri +- Hostname set via command line not config +- Make number of throttle buckets configurable +- Shared_malloc returns NULL on failure +- Sync changes +- Unfsck 4->8 indenting change +- Use 2 seperate u16 values for throttle rate in/out +- Defer adding radius fds to the select loop until become_master + +* Thu Sep 02 2004 David Parrish 2.0.2 +- Combined LCP patches from Iain and Yuri. This should allow Windows 2k/XP + clients to connect, as well Linksys DSL modems. +- Apply patch to fix -v option from Juergen Kammer. +- Makefile fix from Juergen Kammer to not overwrite existing config files on + make install +- Configurable radius port patch from Juergen Kammer. +- Send my_address if no bind_address when doing IPCP +- Write pid file if filename is set +- Add startup script and monitor script from Yuri +- Some logging correctness fixes from Iain Wade +- Add support for LCP Ident and CallBack (rejection only) from Yuri +- Initiate LCP if not attempted by the client, or in renegotiation - Yuri +- Indentation and style cleanups +- Per-user upload and download throttle rates - Yuri +- Make autothrottle.so understand cisco lcp:interface-config - Yuri +- Show filter stats in show session - Yuri +- Cleanup from Michael to change sid to unique_id +- Add plugin to remove domain name from auth requests +- Add .spec file for RPM generation + +* Tue Jul 13 2004 Brendan O'Dea 2.0.1 +- Update INSTALL, Docs/manual.html documentation. +- Add INTERNALS documentation. +- Add lock_pages option. +- TerminateAck fix from Yuri +- Adject cli_loop args for libcli 1.8.0 +- Allow for backward compatabity in C_PING packets +- Don't send RADIUS stop messages from sessionshutdown when called from + sessionkill. +- s/tap/tun/ . +- Fix for LASTSEEN breakage: don't do anything in the CLI other than + flag changes to be made by the parent. +- Split out master parts from cluster_check_master() into cluster_check_slaves(). +- Set hostname in CLI prompt. +- Make cluster_hb_interval work; include interval/timeout in heartbeats + so that a change on the master is propagated immediately to the slaves. +- Use fast heartbeats when there are slaves not up to date. +- Ensure basetime of shut down master is set to zero (prevent delayed election). +- Fix radius session leak on IPCP timeout. +- Fix some off-by-one errors in tunnel/session loops. +- Add "limp along" fix for when a slave drops temporarily from the mcast group. +- Rename l2tpns.cfg as startup-config to match CONFIGFILE. +- Update cli callbacks to work with libcli 1.6. + This supports privileged and unprivileged commands, as well as a configuration + mode. +- Add help for all cli commands. +- Add "show version" command. +- Fix uptime counter display. +- Fix nasty bug where cluster basetime can be set to 0 when sending initial + heartbeat. +- Don't rmmod ip_conntrack, as this can take a lot of time. +- Re-order logging in routeset such that the action is given before any error. +- Use the correct gateway address when deleting routes. +- Remove any routes when address changes. +- Require authentication if telnet from remote ip. +- Require enable password always. +- Return error if show pool done on slave. +- We MUST immediately exit if we're the wrong master! + +* Wed Jun 23 2004 David Parrish 2.0.0 +- Major release +- Completely replace active/standby clustering with a new peer-to-peer + clustering method which allows much greater throughput and is a lot more fault + tolerant +- Add internal tbf implementation for throttling without relying on tc and + kernel HTB +- Add support for iBGP and eBGP to advertise routes +- Add cli commands "show cluster", "show bgp", "show ipcache", "show throttle", + "show tbf", "suspend bgp", "restart bgp", "show user" +- Interception destination must be set per-user +- If SMP machine, allow use of SCHED_FIFO, which should improve performance +- Added config option to send GARP at startup +- Added plugin_become_master and plugin_new_session_master plugin hooks +- Remove useless sessionsendarp(). This isn't needed now that we are using TUN + instead of TAP. +- ICMP rate limiting so not every unreachable packet is replied with an ICMP + unreachable message +- mangle table is not required on anything but the cluster master, so slaves + will drop the mangle table and attempt to unload the ip_conntrack module +- Statically assigned IP addresses (by Radius) work now +- Add -d command-line flag to detach and become a daemon +- Configuration file is now "/etc/l2tpns/startup-config" +- Reduced MIN_IP_SIZE to 0x19 to stop a pile of Short IP warnings +- Resend initial IPCP request until it's acknowleged by the client +- Better radius session cleanup logic +- Many miscellaenous bugfixes and performance enhancements +- Thanks to Michael O'Reilly and Brendan O'Dea for most of these new features + +* Mon May 24 2004 David Parrish 1.2.0 +- Fix SEGFAULT in garden module +- Use multiple radius sockets to allow more concurrent authentication requests +- Add username parameter to "show users" command +- Fix counting tunnel rx errors as tunnel tx errors +- Add "show throttle" command +- Add gcc __attribute__ to logging functions +- Fix warnings shown by __attribute__ +- Make sure regular cleanup happens regularly under high load +- Add variable cleanup_interval for changing cleanup interval +- Add support for reading more than one packet per fd in each processing loop +- This is configurable with the multi_read_count variable +- Remove segv handler so core dumps can happen +- Use nonblocking sockets +- Increase tun queue length +- Fix minimum length of IP packets +- Remove per-packet plugin hooks (they are slow) +- Don't drop session if no free RADIUS +- Don't expire more than 1000 sessions per cleanup interval +- Remove -a and -c command-line options. They don't work anyway +- Don't require file: in log_filename +- Bump version to 1.2.0 +- Check return code when throttling users + * Mon Apr 5 2004 David Parrish 1.1.1 - Don't mention configure anymore, it's not used - Added the autosnoop and autothrottle modules