1 * Mon May 2 2005 Brendan O'Dea <bod@optusnet.com.au> 2.1.0
2 - Add IPv6 support from Jonathan McDowell.
3 - Add CHAP support from Jordan Hrycaj (work in progress).
4 - Sanity check that cluster_send_session is not called from a child
6 - Throttle outgoing LASTSEEN packets to at most one per second for a
8 - More DoS prevention: add packet_limit option to apply a hard limit
9 to downstream packets per session.
10 - Use bounds-checking lookup functions for string constants.
11 - Add enum for RADIUS codes.
12 - Make "call_" prefix implict in CSTAT() macro.
13 - Fix some format string problems.
14 - Fix "clear counters".
15 - Log "Accepted connection to CLI" at 4 when connection is from localhost
16 to reduce noise in logs.
17 - Show time since last counter reset in "show counters".
18 - Remove "save_state" option. Not maintained anymore; use clustering
19 to retain state across restarts.
20 - Ensure that sessionkill is not called on an unopened session (borks
22 - Bump MAXSESSION to 60K.
23 - Fix off-by-one errors in session/tunnel initialisation and
24 sessiont <-> sessionidt functions.
25 - Use session[s].opened consistently when checking for in-use sessions
26 (rather than session[s].tunnel).
27 - Use <= cluster_highest_sessionid rather than < MAXSESSION in a
29 - Don't kill a whole tunnel if we're out of sessions.
30 - Change session[s].ip to 0 if set from RADIUS to 255.255.255.254;
31 avoids the possibility that it will be interpreted as a valid IP
33 - Avoid a possible buffer overflow in processpap.
34 - Kill session if authentication was rejected.
35 - Simplify AVP unhiding code.
36 - Add optional "username" parameter to ungarden control, allowing the
37 username to be reset before going online.
38 - Add result/error codes and message to StopCCN when shutting down tunnels.
39 - Add result/error codes to CDN when shutting down sessions. Sends 2/7
40 (general error, try another LNS) when out of IP addresses, and 3
41 (adminstrative) for everything else (suggestion from Chris Gates).
42 - Only send RADIUS stop record in sessionshutdown when there's an ip address.
43 - Reset .die on master takeover (so that dying sessions don't have to
44 hang around until the new master has the same uptime as the old one).
45 - Update .last_packet in cluster_handle_bytes only when there have
46 been bytes received from the modem (dead sessions were having the
47 idle timeout reset by stray packets).
48 - Use cli_error() for error messages and help.
50 * Fri Dec 17 2004 Brendan O'Dea <bod@optusnet.com.au> 2.0.13
51 - Better cluster master collision resolution: keep a counter of state
52 changes, propagated in the heartbeats; the master with the highest #
53 of changes (that has kept in contact with the LAC through the
55 - Skip newlines in ringbuffer messages to CLI.
56 - Drop "Session N is closing" message level to 4; don't process PPPIP
57 packets in this state.
58 - Use gzip --best for man pages, include pid_file in sample
59 startup-config (from Jonathan's Debian package patches).
60 - Read multiple packets off cluster_sockfd as well as udpfd, tunfd in an
61 attempt to avoid losing the cluster in high load (DoS) conditions.
62 - Add counters for select_called, multi_read_used and multi_read_exceeded.
64 - Retain counters of shutdown sessions to dump once per minute.
65 - Use standard uintN_t types for portability.
67 * Wed Dec 1 2004 Brendan O'Dea <bod@optusnet.com.au> 2.0.12
68 - The "This time, for sure!" release.
69 - Fix throttlectl plugin argument parsing.
71 * Wed Dec 1 2004 Brendan O'Dea <bod@optusnet.com.au> 2.0.11
72 - Don't send a RADIUS start record when ungardening on shutdown.
74 * Wed Dec 1 2004 Brendan O'Dea <bod@optusnet.com.au> 2.0.10
75 - Fix byte ordering of LCP header length (thanks Yuri).
76 - Increase ip_conntrack_max due to dropped packets.
78 * Tue Nov 30 2004 Brendan O'Dea <bod@optusnet.com.au> 2.0.9
79 - Revise CCP, send ConfigReq once only.
80 - Don't copy the old buffer into Config{Nak,Rej} LCP responses (oops);
81 add length checks when appending.
82 - Do copy the identifier from the request and update length.
83 - Have makeppp print a backtrace on overflow.
84 - Check control serial before clearing window, prevents looping tunnel
85 setup in some instances.
86 - Implement named access-lists which may be applied to a session
87 either via Filter-Id RADIUS responses, or using the CLI.
88 - Drop ip address from LOG.
89 - autothrottle: revise parsing; ignore lcp:interface-config avpairs
90 which don't start with serv[ice-policy].
93 * Sat Nov 20 2004 Brendan O'Dea <bod@optusnet.com.au> 2.0.8
94 - Ignore gateway address in Framed-Route (from Jonathan McDowell).
95 - Don't route Framed-IP-Address if contained in a Framed-Route.
96 - Call sessionshutdown() when a tunnel is dropped rather than
97 sessionkill() to ensure that RADIUS stop records are sent.
98 - Cleanup: make a bunch of global functions/variables static.
99 - Remove reference to old -a command line argument.
100 - Add l2tpns(8) and nsctl(8) manpages from Jonathan McDowell.
101 - Add startup-config(5) manpage.
102 - Revise nsctl to allow arbitrary strings/args to be passed to plugins.
103 - Add snoopctl, throttlectl plugins.
104 - Fix deletion from linked list.
105 - Allow LCP re-negotiation after connection completes (thanks Yuri).
107 * Mon Nov 15 2004 Brendan O'Dea <bod@optusnet.com.au> 2.0.7
108 - Fix socket creation in host_unreachable() (thanks to Bjørn Augestad)
109 - Don't assume BGP peer sends back negotiated hold time, pick smallest
111 * Thu Nov 11 2004 Brendan O'Dea <bod@optusnet.com.au> 2.0.6
112 - Make BGP keepalive/hold time configurable
113 - Revise BGP config to use "router bgp AS" syntax (requires libcli >= 1.8.2)
115 * Tue Nov 9 2004 Brendan O'Dea <bod@optusnet.com.au> 2.0.5
116 - Handle routing properly in lone-master case
117 - Fix intercepts: don't double-snoop throttled customers, ensure
118 byte/packet counts are only updated once
119 - Add a callback to allow plugins to fetch values from the running config
121 * Mon Nov 8 2004 Brendan O'Dea <bod@optusnet.com.au> 2.0.4
122 - Added setrxspeed plugin
123 - Added peer_address config option
124 - Rename wrapper macros to LOG()/LOG_HEX(), use p->log() in plugins
125 - Replace some PPP{PAP,CHAP} magic numebrs with constants
126 - Nak asyncmap (unless == 0)
127 - Bundle ConfigRej options
128 - Clean up initlcp handling
130 * Wed Nov 3 2004 Brendan O'Dea <bod@optusnet.com.au> 2.0.3
131 - Added support for hidden AVPs by Robert Clark
132 - l2tpns-chap-response.patch from Robert Clark
133 - Merge l2tpns-config-hostname.patch from Robert Clark
134 - l2tpns-dont-timeshift-unidirectional-traffic.patch from Robert Clark - Dump accounting data if cin OR cout is non-zero
135 - Don't write accounting files if no accounting dir is set - Yuri
136 - Fix checking for mmap success
137 - Renegotiate MRU - Yuri
138 - Take LCP ConfigReq length from the packet length field - Yuri
139 - Hostname set via command line not config
140 - Make number of throttle buckets configurable
141 - Shared_malloc returns NULL on failure
143 - Unfsck 4->8 indenting change
144 - Use 2 seperate u16 values for throttle rate in/out
145 - Defer adding radius fds to the select loop until become_master
147 * Thu Sep 02 2004 David Parrish <david@dparrish.com> 2.0.2
148 - Combined LCP patches from Iain and Yuri. This should allow Windows 2k/XP
149 clients to connect, as well Linksys DSL modems.
150 - Apply patch to fix -v option from Juergen Kammer.
151 - Makefile fix from Juergen Kammer to not overwrite existing config files on
153 - Configurable radius port patch from Juergen Kammer.
154 - Send my_address if no bind_address when doing IPCP
155 - Write pid file if filename is set
156 - Add startup script and monitor script from Yuri
157 - Some logging correctness fixes from Iain Wade
158 - Add support for LCP Ident and CallBack (rejection only) from Yuri
159 - Initiate LCP if not attempted by the client, or in renegotiation - Yuri
160 - Indentation and style cleanups
161 - Per-user upload and download throttle rates - Yuri
162 - Make autothrottle.so understand cisco lcp:interface-config - Yuri
163 - Show filter stats in show session - Yuri
164 - Cleanup from Michael to change sid to unique_id
165 - Add plugin to remove domain name from auth requests
166 - Add .spec file for RPM generation
168 * Tue Jul 13 2004 Brendan O'Dea <bod@optusnet.com.au> 2.0.1
169 - Update INSTALL, Docs/manual.html documentation.
170 - Add INTERNALS documentation.
171 - Add lock_pages option.
172 - TerminateAck fix from Yuri
173 - Adject cli_loop args for libcli 1.8.0
174 - Allow for backward compatabity in C_PING packets
175 - Don't send RADIUS stop messages from sessionshutdown when called from
178 - Fix for LASTSEEN breakage: don't do anything in the CLI other than
179 flag changes to be made by the parent.
180 - Split out master parts from cluster_check_master() into cluster_check_slaves().
181 - Set hostname in CLI prompt.
182 - Make cluster_hb_interval work; include interval/timeout in heartbeats
183 so that a change on the master is propagated immediately to the slaves.
184 - Use fast heartbeats when there are slaves not up to date.
185 - Ensure basetime of shut down master is set to zero (prevent delayed election).
186 - Fix radius session leak on IPCP timeout.
187 - Fix some off-by-one errors in tunnel/session loops.
188 - Add "limp along" fix for when a slave drops temporarily from the mcast group.
189 - Rename l2tpns.cfg as startup-config to match CONFIGFILE.
190 - Update cli callbacks to work with libcli 1.6.
191 This supports privileged and unprivileged commands, as well as a configuration
193 - Add help for all cli commands.
194 - Add "show version" command.
195 - Fix uptime counter display.
196 - Fix nasty bug where cluster basetime can be set to 0 when sending initial
198 - Don't rmmod ip_conntrack, as this can take a lot of time.
199 - Re-order logging in routeset such that the action is given before any error.
200 - Use the correct gateway address when deleting routes.
201 - Remove any routes when address changes.
202 - Require authentication if telnet from remote ip.
203 - Require enable password always.
204 - Return error if show pool done on slave.
205 - We MUST immediately exit if we're the wrong master!
207 * Wed Jun 23 2004 David Parrish <david@dparrish.com> 2.0.0
209 - Completely replace active/standby clustering with a new peer-to-peer
210 clustering method which allows much greater throughput and is a lot more fault
212 - Add internal tbf implementation for throttling without relying on tc and
214 - Add support for iBGP and eBGP to advertise routes
215 - Add cli commands "show cluster", "show bgp", "show ipcache", "show throttle",
216 "show tbf", "suspend bgp", "restart bgp", "show user"
217 - Interception destination must be set per-user
218 - If SMP machine, allow use of SCHED_FIFO, which should improve performance
219 - Added config option to send GARP at startup
220 - Added plugin_become_master and plugin_new_session_master plugin hooks
221 - Remove useless sessionsendarp(). This isn't needed now that we are using TUN
223 - ICMP rate limiting so not every unreachable packet is replied with an ICMP
225 - mangle table is not required on anything but the cluster master, so slaves
226 will drop the mangle table and attempt to unload the ip_conntrack module
227 - Statically assigned IP addresses (by Radius) work now
228 - Add -d command-line flag to detach and become a daemon
229 - Configuration file is now "/etc/l2tpns/startup-config"
230 - Reduced MIN_IP_SIZE to 0x19 to stop a pile of Short IP warnings
231 - Resend initial IPCP request until it's acknowleged by the client
232 - Better radius session cleanup logic
233 - Many miscellaenous bugfixes and performance enhancements
234 - Thanks to Michael O'Reilly and Brendan O'Dea for most of these new features
236 * Mon May 24 2004 David Parrish <david@dparrish.com> 1.2.0
237 - Fix SEGFAULT in garden module
238 - Use multiple radius sockets to allow more concurrent authentication requests
239 - Add username parameter to "show users" command
240 - Fix counting tunnel rx errors as tunnel tx errors
241 - Add "show throttle" command
242 - Add gcc __attribute__ to logging functions
243 - Fix warnings shown by __attribute__
244 - Make sure regular cleanup happens regularly under high load
245 - Add variable cleanup_interval for changing cleanup interval
246 - Add support for reading more than one packet per fd in each processing loop
247 - This is configurable with the multi_read_count variable
248 - Remove segv handler so core dumps can happen
249 - Use nonblocking sockets
250 - Increase tun queue length
251 - Fix minimum length of IP packets
252 - Remove per-packet plugin hooks (they are slow)
253 - Don't drop session if no free RADIUS
254 - Don't expire more than 1000 sessions per cleanup interval
255 - Remove -a and -c command-line options. They don't work anyway
256 - Don't require file: in log_filename
257 - Bump version to 1.2.0
258 - Check return code when throttling users
260 * Mon Apr 5 2004 David Parrish <david@dparrish.com> 1.1.1
261 - Don't mention configure anymore, it's not used
262 - Added the autosnoop and autothrottle modules
263 - Don't default to using a htb for the class root
265 * Fri Mar 5 2004 David Parrish <david@dparrish.com> 1.1.0
266 - Change all strcpy() calls to strncpy() to avoid buffer overflow potential
267 - Add ICMP host unreachable support
268 - Logging to syslog if log_file = "syslog:facility"
269 - Now requires libcli 1.5
270 - All configuration moves to a config structure
271 - Ability to modify and write config on the fly through command-line interface
272 - Config file support is removed, and now handled by the cli
273 - Show hostname in cli prompt
274 - Keep current state type for tunnels
275 - Add uptime command do CLI, which also shows real-time bandwidth utilisation
276 - Add goodbye command to cluster master, which forces droppping a slave
277 - Cache IP address allocation, so that reconnecting users get the same address
278 - Fix tunnel resend timeouts, so that dead tunnels will be cleaned up
279 - Allocate tunnels and radius without using a linked list which had issues
280 - Fix some off-by-one errors in tunnel and session and radius arrays
281 - Save and reload ip address pool when dieing
282 - Check version and size of reloaded data when restarting
283 - Remove plugin_config support
284 - Remove old support for TBF which didn't work anyway. HTB is required to do throttling now.
285 - Add COPYING and Changes files