1 Thu Feb 22 15:08:20 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
3 * Added List flag (SILC_PACKET_FLAG_LIST) to indicate list of
4 payloads in one packet.
6 * Deprecated following packet types: NEW_ID_LIST, NEW_CHANNEL_LIST,
7 NEW_CHANNEL_USER_LIST, SET_MODE and SET_MODE_LIST. List packets
8 use now the new List flag.
10 * Also deprecated the following packet types: REPLACE_ID,
11 NEW_CHANNEL_USER and REMOVE_CHANNEL_USER packet types.
13 * Added list support for Notify packet in server.
15 * Added silc_server_send_notify_channel_change to send the
16 CHANNEL_CHANGE notify type to replace channel ID's. Deprecates
17 the silc_server_send_replace_id.
19 * Added silc_server_send_notify_nick_change to send the
20 NICK_CHANGE notify type. Deprecates the function
21 silc_server_send_replace_id.
23 * Added silc_server_send_notify_join to send the JOIN notify type.
24 Deprecates the function silc_server_send_new_channel_user.
26 * Added silc_server_send_notify_leave to send LEAVE notify type.
27 Deprecates the function silc_server_send_remove_channel_user.
29 * Added silc_server_send_notify_cmode and
30 silc_server_send_notify_cumode to send CMODE and CUMODE notify
31 types. Deprecates the silc_server_send_set_mode function.
33 * Added SERVER_SIGNOFF notify type to indicate that server has
34 quit. This means that all clients on the channel from that
35 server will drop. This can be also used when netsplit happens.
37 Deprecated REMOVE_ID packet type since it is not needed anymore
40 Added silc_server_send_notify_server_signoff to send the
41 SERVER_SIGNOFF notify type. Deprecates the function
42 silc_server_send_remove_id.
44 Added also silc_server_send_notify_signoff to send the
47 * Employed the PKCS #1. It is the mandatory way to do RSA in the
48 SILC protocol from this day on. Changed the protocol
49 specification as well.
51 * Added silc_server_send_notify_topic_set to send TOPIC_SET
52 notify type. It is used between routers to notify about
53 topic changes on a channel.
55 * Added silc_id_dup into lib/silccore/id.[ch] to duplicate
58 * Partly updated the protocol specification to comply with the
59 changes now made. It is still though a bit outdated.
61 * The JOIN notify type now takes one extra argument <Channel ID>.
62 The packet used to be destined to the channel but now the
63 JOIN type may be sent as list thus it is impossible to
64 destine it to any specific channel. By adding this argument
67 Wed Feb 21 22:39:30 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
69 * Added CREDITS file. The CHANGES and CREDITS file will appear
70 in the distribution as well.
72 Wed Feb 21 14:17:04 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
74 * Implemented CMODE_CHANGE, CUMODE_CHANGE and TOPIC_SET notify
75 types in the server's silcd/packet_receive.c.
77 * Implemented CMODE and CUMODE to work in router environment.
79 * Fixed minor encoding and decoding buglet from the
80 lib/silccore/silcmode.c.
82 * Fixed buffer overflow from lib/silcclient/command.c in USERS
85 Wed Feb 21 12:44:00 EET 2001 Mika Boström <bostik@lut.fi>
87 * Changed all SilcConfigServer* and silc_config_server* to
88 SilcServerConfig* and silc_server_config*, respectively.
91 Wed Feb 21 00:10:00 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
93 * Associated the ID (client or server ID) to the Authentication
94 Payload to avoid any possibility of forging. Updated the
95 protocol specification and the code accordingly.
97 Tue Feb 20 14:14:14 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
99 * The RSA key length is now save to the RsaKey context in the
100 key generation process in lib/silccrypt/rsa.c. The key length
101 is now used to figure out the maximum size of the block allowed
102 to be encrypted/signed.
104 * Added silc_mp_mp2bin_noalloc into lib/silcmath/mpbin.[ch]. It
105 is equivalent to the silc_mp_mp2bin but does not allocate any
108 * Changed silc_mp_mp2bin API to take length argument. If it is
109 non-zero then the buffer is allocated that large. If zero, then
110 the size is approximated using silc_mp_sizeinbase, which however
113 * Created Global RNG API which is global RNG that application can
114 initialize. After initializing, any routine anywhere in the
115 code (including library) can use RNG without allocating a new
116 RNG object. This was done to allow this sort of use of the
117 RNG in code that has no chance to allocate RNG object. All
118 applications currently allocate this and many routines in the
119 library use this. Affected file lib/silccrypt/silcrng.[ch].
121 * Removed the RNG kludge from lib/silcmath/primegen.c and changed
122 it to use the Global RNG API.
124 * Defined Authentication Payload into protocol specification that
125 is used during SILC session to authenticate entities. It is
126 used for example by client to authenticate itself to the server
127 to obtain server operator privileges.
129 Implemented this payload into the lib/silccore/silcauth.[ch].
130 Implemented also routines for public key based authentication
131 as the new protocol specification dictates.
133 Moved definitions of different authentication methods from
134 lib/silccore/silcprotocol.h into lib/silccore/silcauth.h.
136 * Added silc_pkcs_encrypt, silc_pkcs_decrypt, silc_pkcs_sign,
137 silc_pkcs_verify and silc_pkcs_sign_with_hash and
138 silc_pkcs_verify_with_hash functions into the file
139 lib/silccrypt/silcpkcs.[ch].
141 Mon Feb 19 19:59:28 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
143 * The client entry's userinfo pointer must be always valid.
144 Otherwise the [<unknown>] bug will surface beacuse the WHOIS
145 will fail since it requires the userinfo. Now, the userinfo
146 is allocated as "" if actual userinfo does not exist. Actually,
147 it must exist and it is totally Ok to drop client connections
148 that does not announce the userinfo. However, we will make
149 this workaround for now.
151 * Added silc_net_get_remote_port into lib/silcutil/silcnet.[ch]
152 to return the remote port by socket.
154 Mon Feb 19 14:26:49 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
156 * Changed SILC_SERVER_COMMAND_EXEC_PENDING macro to the name
157 SILC_SERVER_PENDING_EXEC and added an new macro
158 SILC_SERVER_PENDING_DESTRUCTOR which is called to free the
159 data or when error occurs while processing the pending command.
161 Added new argument `destructor' into silc_server_command_pending
162 and to the SilcServerCommandPending object. This destructor is
163 now called after calling the pending callback or if error occurs
164 immediately. If error occurs the actual pending callback won't
165 be called at all - only the destructor. The destructor may be
166 NULL if destructor is not needed.
168 All this applies for client library code as well. Similar
169 changes were made there as well for the pending commands.
171 In the client, the application must now allocate the
172 SilcClientCommandContext with the silc_client_command_alloc
175 * Added reference counter to the SilcServerCommandContext. Added
176 function silc_server_command_alloc and silc_server_command_dup
179 Same type of functions added to the client library for the same
182 * Removed the cmd_ident from IDListData away since it is now
183 global for all connections. It is the command identifier used
184 in command sending and with pending commands. The affected file
187 * Added reference counter to the SilcSocketConnection objecet to
188 indicate the usage count of the object. The object won't be
189 freed untill the reference counter hits zero. Currently only
190 server uses this, and client ignores it. The client must be
191 set to use this too later. The affected files are
192 lib/silccore/silcsockconn.[ch]. Added also the function
193 silc_socket_dup to increase the reference counter.
195 This was mainly added because it is possible that the socket
196 is removed underneath of pending command or other async
197 operation. Now it won't be free'd and proper DISCONNECTING
198 flags, etc. can be set to avoid sending data to connection that
199 is not valid anymore.
201 * Added SILC_SET_DISCONNECTING to server.c when EOF is read from
202 the connection. After that it sets SILC_SET_DISCONNECTED.
203 It is, however, possible that the socket data is not still freed.
204 The silc_server_packet_process now checks that data is not
205 read or written to connection that is DISCONNECTED. The socket
206 get's freed when the reference counter hits zero.
208 Mon Feb 19 00:50:57 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
210 * Changed the client operation API: channel_message operation's
211 `sender' is now the client entry of the sender, not the nickname
212 and the `channel' is the channel entry, not the channel name.
214 In the private_message operation the `sender' is now also the
215 client entry of the sender not the nickname.
217 Affected file is lib/silcclient/ops.h and all applications
218 using the client operations.
220 Sat Feb 17 22:11:50 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
222 * Moved the calling of ops->connect() from connect_to_server_final
223 into receive_new_id functin since that is the point when the
224 client is actually allowed to send traffic to network. The
225 affected file is lib/silcclient/client.c.
227 Sat Feb 17 13:15:35 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
229 * When receiving NEW_CHANNEL_LIST, NEW_CHANNEL_USER_LIST,
230 NEW_ID_LIST and SET_MODE_LIST packets, broadcast the list packet
231 (if needs broadcasting) instead of broadcasting the packets one
232 by one which would make a burst in the network traffic.
234 * Added `broadcast' argument to the functions in silcd/server.[ch]
235 silc_server_create_new_channel[_with_id] to indicate whether
236 to send New Channel packet to primary router.
238 Sat Feb 17 01:06:44 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
240 * Added new function into the silcd/server.[ch] files:
241 silc_server_create_new_channel_with_id to create new channel with
242 already existing Channel ID.
244 * Added new packet type SILC_PACKET_SET_MODE_LIST into the file
245 lib/silccore/silcpacket.h. This packet is used t send list of
246 Set Mode payloads inside one packet. Server uses this to set
247 the modes for the channels and clients on those channels, that it
248 announced to the router when it connected to it. The protocol
249 specification has been updated accordingly.
251 * The silc_server_new_channel did not handle the packet coming
252 from normal server as it normally does not send that. However,
253 when it announces its channels it does send it. Implemented
254 the support for that.
256 * Added SILC_ID_CHANNEL_COMPARE macro to compare to Channel ID's
257 into the file lib/silccore/id.h.
259 Fri Feb 16 23:57:29 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
261 * Fixed memory leaks in the functions silc_idlist_del_client,
262 silc_idlist_del_channel and silc_idlist_del_server in the file
263 silcd/idlist.c. All of those leaked like a sieve.
265 * Fixed some small memory leaks in the client's function
266 silc_client_notify_by_server.
268 * Added functions into silcd/server.c: silc_server_announce_clients,
269 silc_server_announce_channels and silc_server_announce_server.
270 These functions are used by normal and router server to announce
271 to its primary router about clients, channels and servers (when
272 router) that we own. This is done after we've connected to the
275 These functions effectively implements the following packet types:
276 SILC_PACKET_NEW_CHANNEL_LIST, SILC_PACKET_NEW_CHANNEL_USER_LIST
277 and SILC_PACKET_NEW_ID_LIST.
279 * Added new functions into the silcd/packet_receive.[ch]:
280 silc_server_new_id_list, silc_server_new_channel_list and
281 silc_server_new_channel_user_list to handle the incoming
282 NEW_ID_LIST, NEW_CHANNEL_LIST and NEW_CHANNEL_USER_LIST packets.
284 * Added support of changing Channel ID in the function
285 silc_server_replace_id. If the server that announces a channel
286 to the router already exists in the router (with same name but
287 with different Channel ID), router is responsible to send
288 Replace ID packet to the server and force the server to change
289 the Channel ID to the one router has.
291 * Added new notify type SILC_NOTIFY_TYPE_CHANNEL_CHANGE to notify
292 client that the Channel ID has been changed by the router. The
293 normal server sends this to the client. Client must start using
294 the new Channel ID as the channel's ID.
296 Implemented handling of this new type into lib/silcclient/client.c
297 into the function silc_client_notify_by_server.
299 * Added new function silc_idlist_replace_channel_id into the files
300 silcd/idlist.[ch] to replace the Channel ID.
302 Fri Feb 16 14:14:00 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
304 * Call silc_server_command_identify_check always when processing
305 the IDENTIFY command in silcd/command.c
307 Thu Feb 15 20:07:37 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
309 * Added new packet type SILC_PACKET_HEARTBEAT that is used to
310 send keepalive packets. The packet can be sent by clients,
313 Added function silc_socket_set_heartbeat into the file
314 lib/silccore/silcsockconn.[ch] to set the heartbeat timeout.
315 If not set, the heartbeat is not performed. The actual
316 heartbeat is implemented in the low level socket connection
317 library. However, application is responsible of actually
320 Added silc_server_send_heartbeat to send the actual heartbeat
321 packet into silcd/packet_send.[ch]. Server now performs
322 keepalive with all connections.
324 * Added silc_task_get_first function into lib/silcutil/silctask.c
325 to return the timeout task with shortest timeout. There was a bug
326 in task unregistration that caused problems. TODO has been
327 updated to include that task system must be rewritten.
329 * The client library will now resolve the client information when
330 receiving JOIN notify from server for client that we know but
331 have incomplete information.
333 * Rewrote parts of silc_server_remove_from_channels and
334 silc_server_remove_from_one_channel as they did not remove the
335 channel in some circumstances even though they should've.
337 * Encryption problem encountered in server:
339 The LEAVE command used to send the Channel Key packet to the
340 router immediately after generating it. However, the code
341 had earlier sent Remove Channel user packet but not immediately,
342 ie. it was put to queue. The order of packets in the router
343 was that Channel Key packet was first and Remove Channel User
344 packet was second, even though they were encrypted in the
345 reverse order. For this reason, MAC check failed. Now, this
346 is fixed by not sending the Channel Key packet immediately but
347 putting it to queue. However, this is more fundamental problem:
348 packets that are in queue should actually not be encrypted
349 because packets that are sent immediately gets encrypted
350 actually with wrong IV (and thus MAC check fails). So, packets
351 that are in queue should be encrypted when they are sent to
352 the wire and not when they put to the queue.
354 However, the problem is that the current system has not been
355 designed to work that way. Instead, the packet is encrypted
356 as soon as possible and left to the queue. The queue is then
357 just purged into wire. There won't be any fixes for this
358 any time soon. So, the current semantic for packet sending
361 o If you send packet to remote host and do not force the send
362 (the packet will be in queue) then all subsequent packets to the
363 same remote host must also be put to the queue. Only after the
364 queue has been purged is it safe again to force the packet
367 o If you send all packets immediately then it safe to send
368 any of subsequent packets through the queue, however, after
369 the first packet is put to queue then any subsequent packets
370 must also be put to the queue.
372 Follow these rules and everything works fine.
374 Thu Feb 15 14:24:32 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
376 * Added new function silc_server_remove_clients_by_server to
377 remove all client entries from ID list when the server connection
378 is lost. In this case it is also important to invalidate all
379 client entires as they hold the invalid server entry. This
380 fixes fatal bug when server has lost connection and will reconnect
383 Wed Feb 14 16:03:25 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
385 * Made some sanity checks to silc_server_daemonise like to check
386 whether the requested user and group actually exists.
388 * Added sanity check to SKE's silc_ske_responder_finish to check
389 that the public and private key actually is valid.
391 * Invalidate the client's nickname when receiving Replace ID
392 packet and the Client ID is being replaced. This means that the
393 server will query the nickname if someone needs it (client)
396 * Sort the ID Cache in client library when the ID Cache data
397 has changed (needs sorting).
399 * Do not allow for SILC client to create several connections to
400 several servers. The client does not support windows right now
401 and generating multiple connections causes weird behaviour.
403 Irssi-silc client does support windows and can handle several
404 connections without problems, see: www.irssi.org and SILC plugin.
406 * Fixed some places where client was added to the IDList. The
407 rule of thumb is following (in order to get everything right):
408 If the client is directly connected local client then the
409 `connection' argument must be set and `router' argument must be
410 NULL to silc_idlist_add_client function. If the client is not
411 directly connected client then the `router' argument must
412 bet set and the `connection' argument must be NULL to the
413 silc_idlist_add_client function.
415 * The funtion silc_server_packet_send_local_channel actually did
416 not check whether the client was locally connected or not. It
417 does that now. Fixed a bug related to LEAVE command.
419 * Fixed Remove Channel User payload parsing bug in server's
420 silcd/packet_receive.c. Fixed a bug related to LEAVE command.
422 * The server's silc_server_save_channel_key now checks also the
423 global ID list for the channel as it might not be in the local
424 list. Fixed a bug related to LEAVE command.
426 * Is this the end of the [<unknown>] buglet that has been lurking
427 around for a long time? A little for loop fix in server's
428 silc_server_command_whois_parse that is used by both IDENTIFY
429 and WHOIS command. At least, this was a clear bug and a cause
430 of one type of [<unknown>] buglet.
432 * WHOIS and IDENTIFY commands call the function
433 silc_server_command_[whois/identify]_check function even if
434 we are not router server.
436 Tue Feb 13 19:55:59 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
438 * Added --with-gmp configuration option. If set the GMP
439 is always compiled in the SILC source tree. If not set then
440 it is checked whether the system has the GMP3 installed. If
441 it has then the GMP won't be compiled (the system's headers
442 and library is used), if it doesn't have it then the GMP is
443 compiled in the SILC source tree.
445 Mon Feb 12 11:20:32 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
447 * Changed RSA private exponent generation to what PKCS #1
448 suggests. We try to find the smallest possible d by doing
449 modinv(e, lcm(phi)) instead of modinv(e, phi). Note: this is
450 not security fix but optimization.
452 Sun Feb 11 18:19:51 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
454 * Added new config entry [Identity] to fork the server and run
455 it as specific user and group. A patch from Bostik.
457 * Imported Dotconf configuration library into lib/dotconf.
458 This will be used to create the SILC configuration files later.
459 It will appear in the distsribution after this commit.
461 Sat Feb 10 21:13:45 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
463 * A big code auditing weekend happening. Auditing code for
464 obvious mistakes, bugs and errors. Also, removing any code
467 Removed files for being obsolete:
469 o lib/silcutil/silcbuffer.c (the buffer interface is entirely in
470 inline in the file lib/silcutil/silcbuffer.h)
472 o lib/silcutil/silcbufutil.c (the header has inline versions)
474 Changed code to fix possible error conditions:
476 o The buffer formatting routines now check that the destination
477 buffer really has enough space to add the data. This applies for
478 both buffer formatting and unformatting
479 (lib/silcutil/silcbuffmt.[ch]). Also, the entire buffer
480 unformatting was changed to accomodate following rules:
481 XXX_*STRING_ALLOC will allocate space for the data into the pointer
482 sent to the function while XXX_*STRING will not allocate or copy
483 the data into the buffer. Instead it sets the pointer from the
484 buffer into the pointer sent as argument (XXX_*STRING used to
485 require that the pointer must be allocated already). This change
486 makes this whole thing a bit more consistent and more optimized
487 (note that the data returned in the unformatting with XXX_*STRING
488 must not be freed now). The routines return now -1 on error.
490 o Tried to find all code that use buffer_format and buffer_unformat
491 and added return value checking to prevent formatting and
492 especially unformatting errors and possible subsequent fatal
495 o Changed ske->x and ske->KEY to mallocated pointers in
496 lib/silcske/silcske.h. Fixed possible data and memory leak.
498 o Added return value checking to all *_parse* functions. Fixed
499 many memory leaks as well.
501 o Added length argument to silc_id_str2id in lib/silccore/id.[ch]
502 so that buffer overflows would not happen. All code now also
503 checks the return value as it can fail.
505 Mon Feb 5 20:08:30 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
507 * Added reconnection support to server if the normal server looses
508 its connection to the router (for example if router is rebooted).
509 The server performs normal reconnection strategy implemented
510 to the server. Affected file silcd/server.c.
512 Sun Feb 4 13:18:32 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
514 * Added new packet type SILC_PACKET_SET_MODE that is used to
515 distribute the information about changed modes (for clients,
516 channels and clients channel modes) to all routers in the
517 network. Updated the protocol specification accordingly.
519 Added functions into silcd/packet_send.c and
520 silcd/packet_receive.c: silc_server_send_set_mode,
521 silc_server_set_mode.
523 Added new files silcmode.[ch] into lib/silccore that implements
524 the encoding and decoding of Set Mode Payload. Added new type
525 SilcSetModePayload. Moved the definitions of different modes
526 from lib/silccore/silcchannel.h into lib/silccore/silcmode.h.
528 Sat Feb 3 15:44:54 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
530 * Oops, a little mistake in server's connection authentication
531 protocol. The protocol is not ended with FAILURE but with
532 SUCCESS if the authentication is Ok. :) Affected file is
535 * Implemented NICK_CHANGE notify handling in server in the file
536 silcd/packet_receive.c The NICK_CHANGE notify is distributed to
537 the local clients on the channel. After the changing nickname
538 in router environment snhould work and the [<unknown>] nickname
539 should appear no more.
541 The silc_server_replace_id function that receives the Replace ID
542 payload now sends the NICK_CHANGE notify type also in the file
543 silcd/packet_receive.c
545 * Changed WHOIS and IDENTIFY command to support the maximum amount
546 of arguments defined in protocol specs (3328 arguments). This
547 fixed a bug that caused problems when there were more than three
550 Fri Feb 2 11:42:56 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
552 * Added extra parameter, command identifier, to the
553 silc_client_send_command so that explicit command identifier
556 Changed that ID list routines uses specific command identifier
557 when sending WHOIS/IDENTIFY requests to the server so that they
558 can be identified when the reply comes back.
560 Affected files lib/silcclient/command.[ch],
561 lib/silcclient/client.c and lib/silcclient/idlist.[ch].
563 * Added `sender' argument to silc_server_packet_send_to_channel
564 to indicaet the sender who originally sent the packet to us
565 that we are now re-sending. Ignored if NULL. Affected file
566 silcd/packet_send.[ch].
568 * Added some server statistics support in silcd/server_internal.h
569 SilcServerStatistics structure and around the server code. Also
570 send some nice statistics information when client is connecting
573 Thu Feb 1 23:31:21 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
575 * Fixed channel ID decoding in server's JOIN command reply in
576 silcd/command_reply.c
578 * Fixed braodcasting of replace ID payload to not to send it if
579 we are standalone server in silcd/packet_receive.c.
581 * Fixed all channel message sending routines to not to send
582 packets to clients that has router set, since they are routed
583 separately in the same function earlier. Affects file
584 silcd/packet_send.c and all channel packet sending functions.
586 * In USERS reply, res_argv[i] are not allocated, the table
587 is allocated. Thus changed that free the table, not its
590 * In server's whois_check and identify_check if the client is
591 locally connected do not send any WHOIS commands - they are not
594 Thu Feb 1 21:32:27 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
596 * Fixed some minor bugs in client when sending WHOIS command. The
597 arguments was in wrong order.
599 * Removed statis function add_to_channel from server in
600 silcd/command.c that was previously used with the joining but
603 * Tested USERS command in router environment successfully with two
604 routers, two servers and two clients.
606 Thu Feb 1 00:54:26 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
608 * Reorganized the USERS command and command reply in client library
609 in lib/silcclient/command.c and lib/silcclient/command_reply.c.
610 When the command is given by user we register a pending command
611 callback that will reprocess the command after the reply has been
612 received from the server. When reprocessing the packet we then
613 display the information. Thus, the USERS information is displayed
614 now in the command callback instead of in the command reply
615 callback. The processing of the command is same as previously
616 when server has sent the command reply in the JOINing process.
618 * Added to USERS command in silcd/command_reply.c to join the client,
619 we didn't use to know about, to the channel after we've created
620 a client entry for it. Also, for clienet we did know already still
621 check whether it is on the channel or not and add it if not.
623 * Removed silc_server_command_join_notify as the function and its
626 Tue Jan 30 22:39:15 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
628 * Changed the client's pending command handling to the same as the
629 server's pending command handling. It is also now possible to
630 execute command reply functions from other command reply
631 function as the function callbacks for commands and command
632 replies are one and same. The pending commands are not static
633 list anymore, it is mallocated SilcDList in lib/silcclient/client.h
634 in client connection context. Thus, pending commands are server
635 connection specific as it is convenient.
637 Changed the function silc_client_command_pending and
638 silc_client_command_pending_del and added new function
639 silc_client_command_pending_check. Removed the
640 SILC_CLIENT_CMD_REPLY_EXEC, and SILC_CLIENT_PENDING_COMMAND_CHECK
643 * Added cmd_ident, current command identifier, to the client
644 connection context in lib/silcclient/client.h to keep track on
645 command identifiers used in command sending. Client's command reply
646 function handling now supports the mandatory command identifiers.
648 * Added SILC_CLIENT_COMMAND_EXEC_PENDING macros to all command reply
649 funtions in client to fully support pending command callbacks.
651 * NOTE: the name_list in USERS (old NAMES) command is NOT sent anymore
652 as one of the arguments to the application in the command reply
655 * NOTE: The FORWARDED flag is depracated. It used to be depracated
656 before first releasing SILC but came back. Now it is removed again
657 and should come back nomore. The FORWARDED flag was used only
658 by the JOINing procedure by forwarding the command packet to router.
659 Now, the JOINing procedure has been changed to more generic (due
660 to various router environment issues) and FORWARDED is not needed
661 anymore for anything. The protocol specification is yet to be
664 Now, removed silc_server_packet_forward from server and the flag
665 SILC_PACKET_FORWARDED from lib/silccore/silcpacket.h.
667 Tue Jan 30 00:05:05 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
669 * Renamed NAMES command to USERS command. The NAMES was named that
670 due to historical reasons. Now it is renamed. Also, rewrote
671 parts of the USERS command. The nickname list is not sent anymore
672 by the server. Only Client ID and mode lists are sent in the USERS
673 command. Changed this also to the protocol specification.
675 The client now resolves the names and stuff after it receives
676 the USERS list from the server when joining to the channel.
678 * WHOIS and IDENTIFY commands has been changed to support multiple
679 Client ID's per command. One can now search for multiple users
680 in the network by sending only one WHOIS or IDENTIFY command.
681 Changed the code and the protocol specifications.
683 * Removed silc_server_command_identify_parse and changed that IDENTIFY
684 uses silc_server_command_whois_parse to parse the request. */
686 * If normal server, do not parse the WHOIS and IDENTIFY requests
687 before sending it to the router. Saves some time.
689 Sun Jan 28 16:19:49 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
691 * Fixed JOIN command on client library. Wrong number of arguments
692 used to crash the client.
694 * Added silc_server_channel_has_global function to check whether
695 channel has global users or not.
697 * Added silc_server_channel_has_local function to check whether channel
698 has locally connected clients on the channel.
700 * The silc_server_remove_from_one_channel now checks whether the
701 channel has global users or not after given client was removed from
702 the channel. It also checks whether the channel has local clients
703 on the channel anymore. If it does not have then the channel entry
704 is removed as it is not needed anymore.
706 * The silc_server_notify now checks on JOIN notify whether the joining
707 client is one of locally connected or global. If it is global then
708 the channel has now global users on the channel and that is marked
709 to the channel entry. Also, it now saves the global client to
710 global list who is joining and JOINs it to the channel. This is
711 for normal server, that is.
713 Changed silc_server_send_notify_on_channel,
714 silc_server_packet_relay_to_channel and
715 silc_server_packet_send_to_channel check if we are normal server
716 and client has router set (ie. global client) do not send the
717 message to that client, as it is already routed to our router.
719 * Implemented LEAVE notify type handling in silc_server_notify
722 * Tested LEAVE command in router environment successfully. Tested
723 with two routers, two servers and two clients.
727 * idlist_find_xxx_by_id routines now dumps the ID on the debug mode.
729 * Implemented SIGNOFF notify type handling in silc_server_notify
732 * silc_server_remove_id now removes the client entry from all channels
733 it has joined and thusly sends SIGNOFF notify type.
735 * Rewrote the NAMES list generation in server by removing two excess
736 loops. The lists are created now inside one loop.
738 Sat Jan 27 22:34:56 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
740 * silc_server_remove_channel_user checks now also global list
741 for channel and client.
743 * silc_server_new_channel_user checks now both local and global
744 list for channel and client. Fixed a bug in client id decoding.
745 Used to decode wrong buffer.
747 * silc_server_channel_message checks now both local and global
748 list for channel entry.
750 * Tested channel joining (hence JOIN) in router environment
751 successfully. Tested with two routers, two servers and two
754 * Tested channel message sending in router environment successfully.
756 Thu Jan 11 03:22:57 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
758 * Added silc_server_save_channel_key into server.[ch] to save the
759 received channel key in Channel Key payload processing. It is
760 also used in JOIN command reply handling.
762 Equivalent function silc_client_save_channel_key added into
763 client.[ch] into client library.
765 * Changed JOIN command reply to send information whether the channel
766 was created or not (is existing already) and the channel key
767 payload. Changed protocol specs accordingly.
769 * Fixed bugs in WHOIS and IDENTIFY command reply sending when
770 the request was sent by ID and not by nickname. Crashed on
773 Sat Dec 23 21:55:07 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
775 * Fixed a bug in Client library. IDENTIFY and WHOIS reply functions
776 now correctly save the received data.
778 * silc_server_free_sock_user_data now notifies routers in the
779 network about entities leaving the network.
781 At the same time implemented functions silc_server_remove_id
782 and silc_server_send_remove_id to receive and send REMOVE_ID
783 packets. The packet is used to notify routers in the network
784 about leaving entities. The ID removed will become invalid in
787 * Added function silc_idlist_del_server into server. Removes and
788 free's server entry from ID list.
790 * silc_server_private_message function now checks, if we are router,
791 that the destination ID really is valid ID, naturally.
793 * In router when NEW_ID packet is received (for new client) the
794 hash of the Client ID is saved in the ID Cache but the
795 client->nickname is set to NULL, instead of putting the hash
798 IDENTIFY command now also checks that client->nickname must be
799 valid. If it is not if will request the data from the server who
800 owns the client. Added new function
801 silc_server_command_identify_check.
803 * Added silc_command_set_command into lib/silccore/silcommand.[ch]
804 to set the command to already allocated Command Payload.
806 * Tested private message sending in router environment with two
807 routers, two servers and two clients. Fixed minor bugs and now
810 * Fixed segfault from client's NAMES command. Used to crash if
813 * Forwarded packets must not be routed even if it is not destined
814 to the receiver. Changed server code comply with this.
816 Sun Dec 17 14:40:08 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
818 * Added `require_reverse_mapping' boolean value to ServerParams
819 structure. If TRUE (not default) the server will require that
820 the connecting host has fully qualified domain name.
822 If the reverse mapping is not required and hostname could not be
823 found the IP address is used as hostname.
825 Sat Dec 16 17:39:54 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
827 * Implemented version string checking to both client and server.
828 The check is incomplete currently due to the abnormal version
829 strings used in development version of SILC.
831 * Changed all command functions in server to use the new
834 Fri Dec 15 15:55:12 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
836 * Changed char *data to unsigned char *data in ID Cache system to
837 support binary data as ID Cache data. Changed code to support
838 binary data in lib/silccore/idcache.c.
840 * Renamed silc_server_packet_relay_command_reply to
841 silc_server_command_reply as it is normal packet receiving
842 function. Rewrote the function to accept command replys for
843 servers and not only for clients.
845 * Mark remote router always as registered server if we are connecting
846 to it. Otherwise, commands sent by the router to us are ignored.
848 * All ID List find routines now returns the ID Cache Entry pointer
849 as well if requested.
851 * WHOIS command works now in router environment, tested with two
852 routers, two servers and two clients.
854 * Cleaned up and rewrote IDENTIFY command. IDENTIFY should work now
855 in router environment (as it is almost equivalent to WHOIS) but
856 hasn't been tested thoroughly. Added new functions:
858 silc_server_command_identify_parse
859 silc_server_command_identify_send_reply
860 silc_server_command_identify_from_client
861 silc_server_command_identify_from_server
863 * Disabled route cache adding because adding two different ID's with
864 same IP replaces the old cache entry thus giving wrong route.
865 The entry->router->connection is always the fastest route anyway
866 so route cache may not be needed. Of course, new routes maybe
867 established after receiving the ID when the entry->router->connection
868 might not be anymore the most optimal.
870 Thu Dec 14 15:55:35 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
872 * Add route cache for received ID for fast routing.
874 * Added silc_server_packet_route to route received packet on router
875 that is not destined to us.
877 * Renamed silc_server_get_route to silc_server_route_get.
879 * Added id_string and id_string_len fields into SilcServer to
880 include encoded ServerID for fast comparing without excess
881 encoding of the ID's.
883 * Cleaned up WHOIS command on server side. Added following static
886 silc_server_command_whois_parse
887 silc_server_command_whois_check
888 silc_server_command_whois_send_reply
889 silc_server_command_whois_from_client
890 silc_server_command_whois_from_server
892 * Added macro SILC_SERVER_COMMAND_CHECK_ARGC to check mandatory
893 arguments in command replies. All command functions should be
894 updated to use this macro.
896 Sun Dec 10 23:52:00 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
898 * Minor typo fixes on command reply handling on server.
900 Tue Nov 28 11:05:39 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
902 * Added silc_server_command_add_to_channel internal routine to add
903 the client to the channel after router has created the channel and
904 sent command reply to the server.
906 * Added generic silc_server_send_command to send any command from
909 * Use static buffer with ID rendering instead of duplicating data.
911 Mon Nov 27 21:39:40 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
913 * Fixed a channel user mode bug when joining to a channel server gave
914 everybody channel founder rights, oops.
916 * We mark ourselves as the router of the incoming server connection
917 if we are router ourselves. This way we can check in some packet
918 sending functions whether it is locally connected server. For
919 incoming router connections we put NULL.
921 * For router sending packets locally means now always sending the
922 packet cell wide; to local clients and local servers. For normal
923 server sending packet locally means sending it to only local
926 * Fixed the JOIN command to really work in router environment. If the
927 channel is created it is always created by the router. Router is
928 also responsible of making the initial joining to the channel,
929 sending JOIN notify to the sending server and distributing
930 NEW_CHANNEL and NEW_CHANNEL_USER packets. Hence, if the channel
931 does not exist server doesn't do anything else but forward the
932 command to the router which performs everything.
934 * Added silc_server_send_channel_key function to send the Channel Key
937 * Added silc_server_create_channel_key to create new channel key. The
938 channel key is now re-generated everytime someone joins or leaves
939 a channel, as protocol dictates. Note: channel->key_len is the
942 Wed Nov 22 22:14:19 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
944 * Splitted server.[ch] finally. Created now packet_send.[ch] and
945 packet_receive.[ch] to separate packet sending and receiving
946 routines. The server.[ch] now includes everything else including
947 actual packet processing (writing and reading data) and other
950 Renamed silc_server_private_message_send_internal to
951 silc_server_send_private_message. The routine is still though
952 used only to relay private messages as server does not send
953 private messages itself.
955 Renamed silc_server_new_channel to silc_server_create_new_channel
956 and added new function sicl_server_new_channel that handles the
957 incoming New Channel packet. Added also new sending function
958 silc_server_send_new_channel to send New Channel Payload.
960 * Added new function silc_server_notify to process incoming notify
961 packet to the server/router. Server may then relay the notify
962 to clients if needed.
964 * Added new function silc_server_new_channel_user to process incoming
965 New Channel User packet. Router will redistribute the packet and
966 send JOIN notify to its local clients and locally connected servers
967 if needed. Normal server will send JOIN notify to its local client
968 on same channel when received this packet. Added also corresponding
969 sending function silc_server_send_new_channel_user to sent the
972 * Added boolean route argument to send_notif_to_channel and
973 packet_send_to_channel functions to attempt to route the packet
974 if it is TRUE and send only locally if it is FALSE.
976 Tue Nov 21 19:49:31 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
978 * silc_server_replace_id now broadcasts the received replace ID
979 packet if it is not broadcast packet already. The router must
980 broadcast to inform other routers about changed ID.
982 * Added backpointer to server's router into SilcServer context in
983 silcd/server_internal.h.
985 * Fixed silc_server_packet_broadcast to send correct broadcast
988 * The channel key is now distributed to the local client as soon
989 as it is received from the router (in router environment) so that
990 no other packet may be sent for the channel until client has
993 * silc_server_remove_channel_user now broadcasts the received
994 Remove Channel User packet if it is not broadcast packet already.
995 The router must broadcast to inform other routers about removed
998 * Added users field into SilcPacketContext that is a reference count
999 of the context. One can increase the reference count by calling
1000 silc_packet_context_dup which is now changed to just increase the
1001 reference count instead of duplicating the data. The reference
1002 count is decresed by calling silc_packet_context_free that will
1003 free the data after the reference count hits zero.
1005 For now on the packet context and everything allocated into it
1006 (including the raw packet from network) must be freed by calling
1007 the new silc_packet_context_free function. Added also new function
1008 silc_packet_context_alloc that must be used now to allocate the
1009 context. This also means that if a routine is asynchronous from
1010 silc_[client/server]_packet_parse_type the packet context must
1011 be duplicated by calling silc_packet_context_dup. Otherwise it
1012 gets free'd after silc_[client/server]_packet_parse_type returns.
1013 Also, one must remember that if packet is duplicated then its
1014 reference count must be decresed by calling the free function as
1015 many times as it was duplicated.
1017 * Changed SilcBuffer field from protocol contexts to SilcPacketContext
1018 from both client and server.
1020 Mon Nov 20 23:47:03 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1022 * Made joining to a channel working in router environment.
1024 * Cleaned up JOIN command on server side and create function
1025 silc_server_command_join_channel internal routine to make the
1028 Thu Nov 9 21:12:39 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1030 * Changed silc_command_pending list to SilcDList. Also, added
1031 `ident' field to SilcServerCommandPending structure to identify
1032 the reply and to call correct callback.
1034 Added silc_server_command_pending_check function to replace the
1035 corresnponding macro. The silc_command_pending list is not
1038 * Added silc_command_set_ident into lib/silccore/silccommand.[ch]
1039 to set identifier to previously allocated Command Payload. It
1040 is used to set identifier for command when resending Command
1043 * Added silc_command_payload_encode_payload to encode Command
1044 Payload buffer from SilcCommandPayload structure.
1046 * Added silc_argument_payload_encode_payload to encode Argument
1047 payload buffer from SilcArgumentPayload structure.
1049 Wed Nov 8 21:03:28 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1051 * Changed WHOIS command to support router connection on server side.
1052 The whois request is always sent to router unless the server is
1053 standalone server. After server has received the reply from the
1054 router will it send the reply to the client.
1056 * Added silc_server_packet_broadcast into silcd/server.[ch] to
1057 broadcast received broadcast packet. The function is used only
1058 by router. The broadcast packet is always sent to the router's
1061 * Added silc_id_render function in lib/silcutil/silcutil.[ch] to
1062 render given ID to printable string, for log files for example.
1064 Tue Nov 7 22:14:19 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1066 * Made basic router to router connections working. At least they
1067 can now connect to each other but nothing really works the way
1068 they are supposed - yet.
1070 * Added new initiator token to RouterConnection configuration
1071 file in silcd/serverconfig.[ch]. It is used to tell whether we
1072 are the initiator to the remote router or whether we'll expect
1073 the other end to connect.
1075 * Moved registering of listener task to silc_server_init, hence
1076 the server starts listenning as soon as it is run, even if it
1077 does not have connections to other routers. Let's see how well
1080 * Changed default connection retry timeouts for more suitable in
1083 * Removed cipher and such arguments from silc_idlist_add_client
1084 and silc_idlist_add_server prototypes from silcd/idlist.[ch].
1085 Added new function silc_idlist_add_data to add the keys and stuff
1088 * Added SilcIDListData structure and added it to SilcClientEntry
1089 and SilcServerEntry as their first field in the structure. This
1090 way we can explicitly cast the ID entries to the SilcIDListData
1091 structure and get common data for the entries. In past, we had
1092 to first check what type of connection it is and then cast it to
1093 correct ID entry type. Now, we can directly cast the opaque
1094 pointer to the SilcIDListData (no matter what ID entry it actually
1095 is) and get the data needed.
1097 Mon Nov 6 21:56:12 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1099 * Wow, found a bug in scheduler. The scheduler uninitialized itself
1100 in some circumstances even if threre were timeout tasks, though not
1101 IO tasks, but tasks anyway. Now fixed.
1103 * Defined SilcServerConnection structure to hold connection specific
1104 stuff about directly connected servers and routers. The definition
1105 is currently in silcd/server_internal.h. I thought about having
1106 a bit more important role fro this struct but for now it is used
1107 only when connecting to other server (or router actually).
1109 * Added connecting retry support in server when connecting to
1110 router(s). The retry feature implement exponential backoff
1111 algorithm. Also, added SilcServerParams structure to hold default
1112 parameters for server. For now, it include these retry settings
1113 and are hard coded. After server is moded to be as Silc Server
1114 Library this structure will be more important.
1116 Sun Nov 5 22:28:44 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1118 * Changed client librarys channel->clients table to SilcList and
1119 changed code accordingly.
1121 Thu Nov 2 16:28:01 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1123 * Changed client's channel table to SilcList and changed code
1124 accordingly. Also changed SilcChannelClientEntry to include back-
1125 pointer to the channel so that client entry can use that structure
1126 as list as well and we have fast cross-reference to the channel.
1127 This change dramatically decreased the complexity of channel
1128 handling with client entry and vice versa (removed one extra
1129 loop when searching for channel entry from many functions).
1131 * Changed server->sim from table to SilcDList and changed code
1134 * NAMES command can now be used from user interface. It will show
1135 the user list on the channel, neatly.
1137 * Added realname pointer to SilcClientEntry in lib/silcclient/idlist.h.
1138 Code now saves realname of the user if it becomes available.
1140 * Renamed configure.in to configure.in.pre and made ./prepare
1141 script to automatically add correct version string to
1142 configure.in which it creates from configure.in.pre.
1144 Wed Nov 1 17:21:26 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1146 * NAMES command reply now shows users mode with the nickname when
1149 * Moved silc_client_ch[u]mode[_char] functions from
1150 silc/clientutil.[ch] to lib/silcclient/client.[ch]. Though, that
1151 place sucks, they are utility functions and should be in some
1154 * Fixed some unsigned int's to unsigned short's. Patch by cras.
1156 * Fixed contrib/getopt*.[ch] to not require config.h. Patch by
1159 Tue Oct 31 20:10:37 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1163 * Added TRQ (efficient deque and list library) into lib/trq. This is
1164 a very good list library that is currently used in the SILC. Defined
1165 SilcList API over the library because I didn't like the API very
1166 much. See lib/trq/silclist.h for the API and examples of how to
1167 use the API. Fixed various places in the code to use the new
1168 SilcList API. The SilcList is meant for lists that has a structure
1169 already defined as a list. It is not suitable to add just some
1170 context to the list (in TRQ, the context is the list actually).
1172 So, I defined SilcDList that can be used for the purpose where
1173 predefined list structure does not exit. This can be used as
1174 such list. Now some context just can be added to the SilcDList.
1175 Currently this list is not used in the SILC just yet, though there
1176 are a lot places where this can replace dynamically allocated
1177 tables and I will fix these places, later, to use SilcDList.
1178 See lib/trq/silcdlist.h for SilcDList (they are all inline functions,
1179 and use TRQ internally).
1181 Also fixed some annoying warning messages that the original TRQ
1182 code generated. Also minor changes to TRQ's Makefile.in.
1184 * Added support for querying by Client ID to both WHOIS and
1185 IDENTIFY commands into server, as required by the protocol.
1187 * Removed method function pointers from SilcBuffer structure. They
1188 weren't used to anything and just increased the context size for
1189 no good reason. This change also made silc_buffer_alloc and
1190 silc_buffer_free functions inline functions.
1192 * Disabled command flooding detection support until it's fixed so
1193 that it accepts commands in but does not execute them more than once
1196 * Added silc_net_localhost(), to return local hostname, into
1197 lib/silcutil/silcnet.[ch]. Also added client->hostname pointer
1198 that must be initialized before calling silc_client_init.
1200 * Added new function: silc_server_send_notify_on_channels to send
1201 notify messages to all channels client has joined. It is assured
1202 that the message is sent only once per client.
1204 * Moved silc_log_format (from lib/silcutil/silclog.[ch] into
1205 lib/silcutil/silcutil.[ch] as silc_format function. The new
1206 function is generic and is used by server as well, not only by
1207 the logging routines.
1209 * Added new SKE status type: SILC_SKE_STATUS_BAD_VERSION to indicate
1210 the provided version string was not acceptable. Added new function:
1211 silc_ske_check_version into lib/silcske/silcske.h. The function
1212 must be implemented by the application (client or server) and it
1213 does not reside in the SKE library. The function checks the version
1214 string remote end sent.
1216 * Added back pointers (to opaque context and to SilcSocketConnection)
1217 into SilcPacketContext structure into lib/silccore/silcpacket.h.
1219 * Added silc_packet_context_dup into lib/silccore/silcpacket.[ch] to
1220 duplicate packet context structure.
1222 * Changed `notify' client operation to send same arguments as client
1223 receives from server except for ID's. ID's are mapped to correct
1224 ID entry and that is returned. Also, if channel entry is not sent
1225 by server but the notify is for channel the channel entry is sent
1226 to application (otherwise application doesn't know that it is for
1227 channel (library gets it from packet's Destination ID)).
1229 * Added silc_client_remove_from_channels into client library to
1230 remove a client from all channels it has joined to. Used when
1231 received SIGNOFF notify from server. Added also new function
1232 silc_client_replace_from_channels to replace old ID entry with
1233 new ID entry on all channels. Used when received NICK_CHANGE
1236 * Fixed ID Cache list handling in silc_idlist_get_client in
1237 lib/silcclient/idlist.c. Also, added silc_idlist_get_client_by_id
1238 to get (or query) client by ID.
1240 * Updated TODO list.
1242 * Added connection authentication status message defined by the
1243 protocol: SILC_CONN_AUTH_OK and SILC_CONN_AUTH_FAILED and added the
1244 support for these into the code in client and server side.
1246 * Added generic function silc_client_send_command to send any command
1247 with variable argument list. Application should use this function
1248 to send commands if the command functions provided by the library
1249 does not suite for the application's user interface needs.
1251 * Added new `failure' client operation. Application is notified about
1252 received failure packet if client is executing a protocol. In this
1253 case the protocol's execution has failed.
1255 * Added SKE's end notify to send the SKE_SUCCESS notify message that
1256 is required by the protocol.
1258 * Added SILC_PROTOCOL_STATE_FAILURE to indicate received failure
1259 packet from remote. SILC_PROTOCOL_STATE_ERROR indicates local
1262 * Added status flag to SilcSKE object to indicate realtime status
1263 of the SKE protocol.
1265 * Application receives now exactly same command reply arguments as
1266 the library receives from server. However, if ID is received the
1267 corresponding ID entry is returned to the application (eg. Client
1268 ID is mapped to correct SilcClientEntry entry and that is returned).
1269 Changed command_reply client operation due to this change.
1271 * Changed all ID's in commands and in command replys as ID Payloads.
1272 Change affected both client and server side codes.
1274 All ID's sent in SILC network (with execption of ID's in SILC
1275 Packet header) are sent in ID Payload to support variable length
1278 * Server now notifies nick changes and notifies all clients on
1279 the channels about the new nickname (about the new Client ID,
1282 * Implemented CMODE command to change channel modes. Supports all
1283 channel modes defined by the protocol specs except ban and invite
1284 lists. (Also, private channel key mode is supported but support for
1285 setting private channel key in client is missing, thus, this mode
1286 has no effect on client side (except that server requires that the
1287 client uses private channel key and normal channel traffic does not
1290 Also, invite mode works per se, but INVITE command does not work
1291 yet correctly, so you can set channel as invite only channel but
1292 inviting clients to the channel does not work (it is yet to be
1293 thought what's the best way to do it).
1295 * Added new command SILC_COMMAND_CUMODE to change user mode on the
1296 channel. Defined user modes: CHANNEL_FOUNDER and CHANNEL_OPERATOR.
1297 Implemented CUMODE command to change user's mode on the channel.
1298 Supports all modes defined by the protocol specs.
1300 * Added NAMES command reply to return users modes on the channel.
1302 * Removed unnecessary and slow ciphers from lib/silccrypt.
1304 * Set SO_KEEPALIVE option to connection sockets by default.
1306 * Added new command reply status: SILC_STATUS_USER_NOT_ON_CHANNEL.
1308 * Added notify types: MOTD, CMODE_CHANGE and CUMODE_CHANGE. Also,
1309 redefined the Notify Payload into protocol specs.
1311 * Added silc_id_payload_parse_id to get ID directly from raw
1314 Mon Oct 9 20:57:02 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1316 * Changed SILC_COMMAND_IDENTIFY in protocol specification to
1317 accept searching by Client ID as well.
1319 * Added support for LEAVE and SIGNOFF notify types in client library.
1321 * Added silc_id_payload_parse_data into lib/silccore/silcpayload.[ch]
1322 to parse ID Payload from raw data.
1324 Sun Oct 8 19:33:08 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1326 * Added flags parameter into silc_ske_assemble_security_properties
1327 function in lib/silcske/silcske.[ch].
1329 * Changed notify client operation to fit better for notify messages
1330 sent by server. The notify payload received from server is now
1331 passed to the application (after parsing it to SilcNotifyPayload).
1332 It is application's responsibility to retrieve the arguments
1333 from the payload and show the message the way it wants. The message
1334 sent by server is implementation specific.
1336 * Changed public keys to comply with the protocol specification.
1337 Old public keys are not supported anymore and are not compatible.
1339 * Removed nickname from Channel Payload as the latest draft removed
1340 it. The client must resolve the nickname from the NAMES command
1341 reply received when it joined the channel.
1343 Also, changed all channel_xxxx_payload to channel_payload_xxxx.
1345 Sat Oct 7 21:55:01 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1347 * Fixed some errors in protocol specification drafts.
1349 * Created lib/silccore/silcnotify.c to implement Notify Payload
1350 encoding and decoding, lib/silccore/silcpayload.[ch] to implement
1351 generic payloads described by protocol specifications. The file
1352 includes implementations for ID Payload and Argument Payload.
1354 * Changed Command Payload implementation to use the new Argument
1355 Payload. Changed command_xxxx_payload to command_payload_xxxx
1356 to comply with SILC coding conventions.
1358 * Added suppport for Argument Payload handling in Notify Payload
1359 implementation as protocol requires it. Added the new support
1360 into server and client lib as well.
1362 Thu Oct 5 21:16:28 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1364 * Added support for multiple nicknames on same channel. [n] is
1365 added locally to the nickname if there are more than one same
1366 nicknames on the channel.
1368 * Server now sends all nicknames that matched WHOIS request.
1369 Client also shows the list received from server.
1371 * Added TOPIC command to client side. User can now set and show
1372 current topic on channel.
1374 * Added MOTD command to client and server. Also, server sends the
1375 motd when client connects to the server.
1377 * Changed version strings to comply ISO 8601.
1379 Wed Oct 4 23:29:06 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1381 * Fixed protocol error handling in client library. It should now
1382 cope even if the SKE fails for some reason.
1384 * Made new protocol specification drafts for submitting to IETF.
1386 * Implemented TOPIC command to server in silcd/command.c.
1388 * Added two new notify types into lib/silccore/silcnotify.h:
1389 SILC_NOTIFY_TYPE_NICK_CHANGE and SILC_NOTIFY_TYPE_TOPIC_SET to
1390 notify nickname change and topic setting/change on a channel.
1392 * API change of command_reply operation in client library. The
1393 application gets now the status type received from server as well.
1395 Sat Sep 30 16:57:42 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1397 * Removed the function just added to lib/silcutil/silcschedule.[ch].
1399 * Cras fixed and optimized the packet handling even further and
1400 it should work now. Minor change to the prototype of function
1401 silc_packet_receive_process in lib/silccore/silcpacket.[ch].
1403 Sat Sep 30 08:48:47 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1405 * Added new function into lib/silcutil/silcschedule.[ch]:
1406 silc_schedule_with_fd to select() a specified fd. The function
1407 returns after timeout expires or data arrives or goes. The
1408 function is used by packet routines to wait that all data is
1409 received from network.
1411 * Fixed data reading from network in lib/silccore/silcpacket.c.
1412 The code now assures that all data is read from the fd and then
1413 continues packet processing. This was a bug fix since the code
1414 used to drop some data in some circumstances.
1416 * Added new function into lib/silcclient/client.[ch]:
1417 silc_client_start_key_exchange to start key exchange after
1418 connection has been established to server. The code internally
1419 now uses this funtion but its main purpose was to provide it
1420 for applications that perform their own connecting. After
1421 application has created a connection it merely calls this
1422 function to start the key exchange between client and server.
1423 The library takes care of everything else after that.
1425 Updated also lib/silcclient/README to explain the usage of
1428 * Do not send to application information that connection has
1429 been established. Application gets notified it by connect
1432 Thu Sep 28 23:40:19 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1434 * Applied cras's patch to add silc_schedule_one function. The
1435 function runs scheduler once and returns.
1437 * Fixed the scheduler after cras messed it up. The timeout
1438 handling works now as it's supposed to work.
1440 * Added into lib/silccore/ silcnotify.h to include notify
1441 message types support. Changed silc_server_send_notify*
1442 functions, in server.[ch], to support those new notify types.
1443 Added the support for the notify types into client library,
1444 as well. Added new notify client operation into ops.h in
1447 * Changed silc_server_packet_send_to_channel to send normal
1448 packets instead of just channel message packets. The function
1449 is now used to send the notify packets to channels. It is not
1450 used to send channel message packets anymore, as server never
1453 * Added explicit casting into lib/silcutil/silcbuffmt.c to few
1454 va_arg()s as it seems to require it nowadays. I guess, if SILC
1455 is compiled with older va_arg() the new code should work anyway.
1457 Wed Sep 13 18:10:14 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1459 * Splitted core library. Core library (lib/silccore) includes
1460 now only SILC protocol specific core (and common) components.
1461 Created new utility library (lib/silcutil) that includes more
1462 generic purpose stuff. The stuff for util library was taken
1463 from the old core library. This was minor and easy split.
1465 * Created SILC Client Library (lib/silcclient) that includes
1466 implementation of the SILC client without user interface. This
1467 was major move from silc/ directory. The code has been changed
1468 so that it is transparent towards the user interface. The
1469 silc/ directory includes now the same user interface as before
1470 and it uses the new client library. Read lib/silcclient/README.
1471 Basicly, the client library performs everything else related
1472 to SILC except user interface handling. Also, configuration
1473 files are considered to be part of user interface and library
1474 does not handle them.
1476 This change also changed a lot of structures, function naming etc.
1477 Most important change was that SilcClientWindow object was
1478 renamed to SilcClientConnection in the client library. Created
1479 also new file lib/silcclient/ops.h. Also added new files
1480 silc/local_command.[ch] and silc/client_ops.[ch].
1482 All these changes were made to make it easier for user interface
1483 designers to create what ever user interface for the SILC client
1486 It is also expected that the server will be moved to lib
1487 directory as well and SILC Server Library will be created;
1488 sometimes in the future.
1490 * Removed Local commands from lib/silccore/silccommand.h as
1491 they are application specific and new client library does not
1492 handle any of those anymore.
1494 * Several functions moved to lib/silcutil/silcutilc.[ch] from
1495 old client implementation in silc/.
1497 * Added support for callback functions in SILC_LOG_* macros.
1498 Application can now set its own callbacks that will be called
1499 instead of using the default functions that will always print
1500 the debug messages to stderr (or stdout). Also, debugging can
1501 now be disabled by setting silc_debug to FALSE and re-enabled by
1502 setting it to TRUE. Note, that logging will still work even
1503 if debugging is disabled.
1505 New functions in lib/silcutil/silclog.[ch]: silc_log_set_callbacks,
1506 silc_log_reset_callbacks, silc_log_set_debug_callbacks and
1507 silc_log_reset_debug_callbacks.
1509 * To enable debugging in silc client one must give now -d
1510 option on command line.
1512 * Changed silc_schedule_init to automatically allocate task queues
1513 if they are not allocated before calling it.
1515 Thu Sep 7 10:49:33 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1517 * Added GMP 3.1 into math library.
1519 Sun Aug 20 21:27:26 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1521 * Added SILC_PACKET_REMOVE_CHANNEL_USER to remove a client from
1522 a channel in SILC network. The packet is used by servers and
1523 routers to notify other routers that user has left a channel.
1524 This little feature was missing until now. Added the feature
1525 to protocol specification as well.
1527 Added functions: silc_server_send_remove_channel_user and
1528 silc_server_remove_channel_user into server.[ch].
1530 * Added SILC_PACKET_REKEY and SILC_PACKET_REKEY_DONE into
1531 lib/silccore/silcpacket.h. However, they are not implemented
1534 Sat Aug 19 23:04:16 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1536 * Fixed joining to a channel and sending channel messages
1537 between server and router. The channel message sending should
1538 now work inside a cell.
1540 Tue Jul 25 20:46:13 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1542 * Fixed the private message sending between server and router.
1543 The private message sending should now work inside a cell.
1545 * Added silc_server_replace_id into server.[ch] to replace
1546 existing ID in the SILC network.
1548 * Added silc_idlist_find_server_by, silc_idlist_replace_client_id
1549 and silc_idlist_replace_server_id into idlist.[ch] in server.
1551 Mon Jul 24 18:33:31 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1553 * Fixed the server to server connections. Server can again now
1554 connect to router. Router to router connections probably does
1557 Thu Jul 20 13:15:01 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1559 * Added dynamic protocol registering support. Now protocols can
1560 registered and unregistered on the fly. Patch by cras.
1562 Wed Jul 19 19:08:46 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1564 * Added lib/contrib directory to hold routines that some platforms
1565 don't have but are needed by SILC.
1567 * Added getopt.c, getopt1.c and getopt.h from GNU C library
1568 into lin/contrib to provide getopt() and getopt_long() for
1569 those who don't have it.
1571 Tue Jul 18 20:41:20 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1573 * Added AWAY command to client. When away message is set and
1574 client receives a private message packet the client automatically
1575 replies to the sender with the away message.
1577 * Fixed a bug in lib/silcmath/mpbin.c: silc_mp_mp2bin. This
1578 bug seemed to be the cause of recent problems when compiling
1581 * Added version detection support to SKE protocol specification
1582 and added the new changes to the SKE implementation as well.
1583 There were other minor changes in the SKE protocol as well.
1585 Many changes in lib/silcske/silcske.[ch] and in
1586 lib/silcske/payload.[ch].
1588 * Added ^U functionality, clear input line. Patch from cras.
1590 Mon Jul 17 23:33:26 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1592 * Mainly small bugfixes on core library. Fixed some debugging
1593 logging and buffer overflow in silclog.c.
1595 * Updated config.sub and config.guess on the distribution tree.
1597 Sat Jul 15 15:33:48 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1599 * Added command lagging support in server. Client may execute
1600 commands now only once in two seconds.
1602 Thu Jul 13 22:10:21 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1604 * Optimized packet reception. MAC computation and checking is now
1605 also more optimized. A lot previously duplicated code is now
1606 used as generic by both client and server.
1608 * Fixed key pair generation in clientutil.c
1610 Wed Jul 12 18:28:07 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1612 * Added into lib/silccore/silcbufutil.[ch] new function;
1613 silc_buffer_realloc.
1615 * Moved generic packet sending/encryption functions to
1616 lib/silccore/silcpacket.[ch] from client and server. Some
1617 rewriting of the functions.
1619 * Moved all generic packet reception/decryption functions to
1620 lib/silccore/silcpacket.[ch] from client and server. The
1621 packet processing is now much cleaner in both client and server.
1622 These were major changes in both client and server.
1624 * Created many common functions in server to do packet sending.
1625 Previously code were duplicated a lot, this has been removed
1628 Tue Jul 11 20:27:26 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1630 * Rewrote major parts of the ID cache system. Don't know
1631 whether it is better now or not but at least the API is more
1634 * Major rewrite on ID cache stuff on client because of the ID
1635 cache API changes. Added idlist.c to client.
1637 * Also major rewrite on ID cache stuff on server as well.
1638 Major rewrite of idlist.[ch]. SilcXXXList's are now named
1639 SilcXXXEntry's. We won't keep anymore idlist specific pointers
1640 in hand, instead they are all put into the ID cache system now.
1641 All server_idlist_* routines uses ID cache now instead of
1642 traversing its own lists (those lists does not exist anymore).
1643 SilcIDList though still exists. Also, SilcXXXEntry's are
1646 Sun Jul 9 15:19:24 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1648 * Finally made the SKE implementation compliant to the protocol
1649 specification. All mp integers are now binary encoded as
1650 opposed being HEX encoded.
1652 * Added lib/silcmath/mpbin.[ch]. Encoding mp intergers to and
1655 * Added into lib/silccore/silcutil.[ch] PEM encoding/decoding
1656 functions: silc_[encode/decode]_pem. Also added function
1657 silc_encode_pem_file to PEM encode with newlines ('\n') for
1660 * SILC public keys are now encoded either PEM or binary. Same
1661 option is for private keys as well. By default private keys
1662 are binary encoded and public keys PEM encoded. Silly HEX
1663 encoding were removed.
1665 * Added into lib/silccrypt/silchash.[ch] silc_hash_fingerprint
1666 function to create fingerprints.
1668 * Fixed a bug in SHA1; does not change the original data anymore.
1670 * Partly implemented INFO command on client and server side.
1671 Fixed CLEAR command. Changes to SERVER command; show current
1672 server(s) when giving command without arguments. Added
1673 VERSION command to client.
1675 * Added check to server that unregistered connections cannot
1676 execute commands (unless it is specificly allowed).
1678 Thu Jul 6 18:12:24 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1680 * Fixed screen refresh.
1682 * Fixed channel joining bug from client. On some circumstances
1683 client tried to join to a channel it had already joined.
1685 * Added public key verification process into client's protocol.c.
1686 The client now verifies the public key from user and saves
1687 it into ~./silc/serverkeys/ directory.
1689 Added into: clientutil.[ch]: silc_client_verify_server_key.
1691 * Changed SKE protocol's silc_ske_initiator_finish function
1692 to accept callback function that verifies the received public
1693 key. Removed old silc_ske_verify_public_key function.
1695 Wed Jul 5 19:19:02 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1697 * Added into silcpkcs[ch]: silc_pkcs_public_key[_data]_set and
1698 silc_pkcs_private_key[_data]_set.
1700 * Made the password and public authentication more cleaner in
1701 server's protocol.c.
1703 * Removed historic and obsolete protocol `channel_auth' from
1704 both client and server.
1706 * Removed wrong way of sending command status messages from
1707 server to client in server's command.c. The old way violated
1708 protocol specification.
1710 Changes to silccore/silccommand.[ch]: removed
1711 silc_command_encode_status_payload -> not needed anymore,
1712 changed silc_command_encode_payload_va to accept extra
1713 argument on variable argument list. The argument type must
1714 now be provided to the function. Also, added new function:
1715 silc_command_encode_reply_payload_va which is same as
1716 normal command_encode_payload_va except command status type
1717 is provided as extra argument.
1719 Tue Jul 4 18:26:39 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1721 * Added ~./silc directory handling. The directory includes the
1722 public and private keys for the client.
1724 Added silc_client_check_silc_dir, silc_client_create_identifier
1725 and silc_client_load_keys.
1727 * Implemented SILC protocol compliant public key. Added public
1728 and private key saving to and loading from files.
1730 Added into silcpkcs.[ch]: silc_pkcs_encode_identifier,
1731 silc_pkcs_public_key_encode[_data], silc_pkcs_public_key_decode,
1732 silc_pkcs_private_key_encode[_data], silc_pkcs_private_key_decode,
1733 silc_pkcs_public_key_alloc, silc_pkcs_public_key_free,
1734 silc_pkcs_private_key_alloc and silc_pkcs_private_key_free.
1736 Implemented: silc_pkcs_save_[public/private]_key[_data] and
1737 silc_pkcs_load_[public/private]_key.
1739 Mon Jul 3 18:51:27 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1741 * Added silc_server_get_route (route.[ch]) to get connection
1742 data for the fastest route for given ID.
1744 * Implemented INVITE command on client and server. The command
1745 were re-defined in the SILC Protocol Specification and the
1746 implementation now complies with the specification.
1748 * Implemented PING command on client and server.
1750 * Implemented NAMES command on client and server. The server side
1751 supports currently only normal server not router server yet.
1752 Some changes to NAMES definition in SILC protocol specification.
1754 Sun Jul 2 18:23:01 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1756 * Implemented LEAVE command on client and server.
1758 * Previously deprecated SILC_PACKET_FORWARDED flag is now in use
1759 again. This change was made to the protocol as well. Server
1760 should not violate the protocol specification anymore.
1762 Fri Jun 30 14:03:26 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1764 * Added SOCKS4 and SOCKS5 support to SILC client. SOCKS5
1765 was tested. SOCKS4 was not but should work anyway.