1 Sat Feb 24 16:03:45 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
3 * Added SILC_NOTIFY_TYPE_KICKED to indicate that the client
4 or some other client was kicked from the channel.
6 Implemented the handling of the notify type to both client
9 Implemented silc_server_send_notify_kicked to send the KICKED
10 notify. It is used to send it to the server's primary router.
12 * Implemented the KICK command into server and client.
14 * Added `query' argument to the silc_idlist_get_client function
15 to indicate whether to query the client from server or not if
18 * Added new command status type SILC_STATUS_ERR_NO_CHANNEL_FOPRIV
19 to indicate that the client is not channel founder.
21 Sat Feb 24 00:00:55 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
23 * Removed the rng context from SilcPacketContext structure and
24 changed that the packet routine uses the Global RNG API.
26 Fri Feb 23 11:22:57 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
28 * Added support for quit message that client can "leave" on the
29 channel when it quits the SILC. It is ditributed inside the
30 SILC_NOTIFY_TYPE_SIGNOFF notify type.
32 Added silc_server_free_client_data that will take the
33 signoff message as argument.
35 * Changed SKE routines to use the silc_pkcs_sign/verify routines.
37 Thu Feb 22 23:05:36 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
39 * Updated parts of the protocol specification to keep it up
42 Thu Feb 22 15:08:20 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
44 * Added List flag (SILC_PACKET_FLAG_LIST) to indicate list of
45 payloads in one packet.
47 * Deprecated following packet types: NEW_ID_LIST, NEW_CHANNEL_LIST,
48 NEW_CHANNEL_USER_LIST, SET_MODE and SET_MODE_LIST. List packets
49 use now the new List flag.
51 * Also deprecated the following packet types: REPLACE_ID,
52 NEW_CHANNEL_USER and REMOVE_CHANNEL_USER packet types.
54 * Added list support for Notify packet in server.
56 * Added silc_server_send_notify_channel_change to send the
57 CHANNEL_CHANGE notify type to replace channel ID's. Deprecates
58 the silc_server_send_replace_id.
60 * Added silc_server_send_notify_nick_change to send the
61 NICK_CHANGE notify type. Deprecates the function
62 silc_server_send_replace_id.
64 * Added silc_server_send_notify_join to send the JOIN notify type.
65 Deprecates the function silc_server_send_new_channel_user.
67 * Added silc_server_send_notify_leave to send LEAVE notify type.
68 Deprecates the function silc_server_send_remove_channel_user.
70 * Added silc_server_send_notify_cmode and
71 silc_server_send_notify_cumode to send CMODE and CUMODE notify
72 types. Deprecates the silc_server_send_set_mode function.
74 * Added SERVER_SIGNOFF notify type to indicate that server has
75 quit. This means that all clients on the channel from that
76 server will drop. This can be also used when netsplit happens.
78 Deprecated REMOVE_ID packet type since it is not needed anymore
81 Added silc_server_send_notify_server_signoff to send the
82 SERVER_SIGNOFF notify type. Deprecates the function
83 silc_server_send_remove_id.
85 Added also silc_server_send_notify_signoff to send the
88 * Employed the PKCS #1. It is the mandatory way to do RSA in the
89 SILC protocol from this day on. Changed the protocol
90 specification as well.
92 * Added silc_server_send_notify_topic_set to send TOPIC_SET
93 notify type. It is used between routers to notify about
94 topic changes on a channel.
96 * Added silc_id_dup into lib/silccore/id.[ch] to duplicate
99 * Partly updated the protocol specification to comply with the
100 changes now made. It is still though a bit outdated.
102 * The JOIN notify type now takes one extra argument <Channel ID>.
103 The packet used to be destined to the channel but now the
104 JOIN type may be sent as list thus it is impossible to
105 destine it to any specific channel. By adding this argument
106 it is again possible.
108 Wed Feb 21 22:39:30 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
110 * Added CREDITS file. The CHANGES and CREDITS file will appear
111 in the distribution as well.
113 Wed Feb 21 14:17:04 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
115 * Implemented CMODE_CHANGE, CUMODE_CHANGE and TOPIC_SET notify
116 types in the server's silcd/packet_receive.c.
118 * Implemented CMODE and CUMODE to work in router environment.
120 * Fixed minor encoding and decoding buglet from the
121 lib/silccore/silcmode.c.
123 * Fixed buffer overflow from lib/silcclient/command.c in USERS
126 Wed Feb 21 12:44:00 EET 2001 Mika Boström <bostik@lut.fi>
128 * Changed all SilcConfigServer* and silc_config_server* to
129 SilcServerConfig* and silc_server_config*, respectively.
132 Wed Feb 21 00:10:00 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
134 * Associated the ID (client or server ID) to the Authentication
135 Payload to avoid any possibility of forging. Updated the
136 protocol specification and the code accordingly.
138 Tue Feb 20 14:14:14 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
140 * The RSA key length is now save to the RsaKey context in the
141 key generation process in lib/silccrypt/rsa.c. The key length
142 is now used to figure out the maximum size of the block allowed
143 to be encrypted/signed.
145 * Added silc_mp_mp2bin_noalloc into lib/silcmath/mpbin.[ch]. It
146 is equivalent to the silc_mp_mp2bin but does not allocate any
149 * Changed silc_mp_mp2bin API to take length argument. If it is
150 non-zero then the buffer is allocated that large. If zero, then
151 the size is approximated using silc_mp_sizeinbase, which however
154 * Created Global RNG API which is global RNG that application can
155 initialize. After initializing, any routine anywhere in the
156 code (including library) can use RNG without allocating a new
157 RNG object. This was done to allow this sort of use of the
158 RNG in code that has no chance to allocate RNG object. All
159 applications currently allocate this and many routines in the
160 library use this. Affected file lib/silccrypt/silcrng.[ch].
162 * Removed the RNG kludge from lib/silcmath/primegen.c and changed
163 it to use the Global RNG API.
165 * Defined Authentication Payload into protocol specification that
166 is used during SILC session to authenticate entities. It is
167 used for example by client to authenticate itself to the server
168 to obtain server operator privileges.
170 Implemented this payload into the lib/silccore/silcauth.[ch].
171 Implemented also routines for public key based authentication
172 as the new protocol specification dictates.
174 Moved definitions of different authentication methods from
175 lib/silccore/silcprotocol.h into lib/silccore/silcauth.h.
177 * Added silc_pkcs_encrypt, silc_pkcs_decrypt, silc_pkcs_sign,
178 silc_pkcs_verify and silc_pkcs_sign_with_hash and
179 silc_pkcs_verify_with_hash functions into the file
180 lib/silccrypt/silcpkcs.[ch].
182 Mon Feb 19 19:59:28 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
184 * The client entry's userinfo pointer must be always valid.
185 Otherwise the [<unknown>] bug will surface beacuse the WHOIS
186 will fail since it requires the userinfo. Now, the userinfo
187 is allocated as "" if actual userinfo does not exist. Actually,
188 it must exist and it is totally Ok to drop client connections
189 that does not announce the userinfo. However, we will make
190 this workaround for now.
192 * Added silc_net_get_remote_port into lib/silcutil/silcnet.[ch]
193 to return the remote port by socket.
195 Mon Feb 19 14:26:49 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
197 * Changed SILC_SERVER_COMMAND_EXEC_PENDING macro to the name
198 SILC_SERVER_PENDING_EXEC and added an new macro
199 SILC_SERVER_PENDING_DESTRUCTOR which is called to free the
200 data or when error occurs while processing the pending command.
202 Added new argument `destructor' into silc_server_command_pending
203 and to the SilcServerCommandPending object. This destructor is
204 now called after calling the pending callback or if error occurs
205 immediately. If error occurs the actual pending callback won't
206 be called at all - only the destructor. The destructor may be
207 NULL if destructor is not needed.
209 All this applies for client library code as well. Similar
210 changes were made there as well for the pending commands.
212 In the client, the application must now allocate the
213 SilcClientCommandContext with the silc_client_command_alloc
216 * Added reference counter to the SilcServerCommandContext. Added
217 function silc_server_command_alloc and silc_server_command_dup
220 Same type of functions added to the client library for the same
223 * Removed the cmd_ident from IDListData away since it is now
224 global for all connections. It is the command identifier used
225 in command sending and with pending commands. The affected file
228 * Added reference counter to the SilcSocketConnection objecet to
229 indicate the usage count of the object. The object won't be
230 freed untill the reference counter hits zero. Currently only
231 server uses this, and client ignores it. The client must be
232 set to use this too later. The affected files are
233 lib/silccore/silcsockconn.[ch]. Added also the function
234 silc_socket_dup to increase the reference counter.
236 This was mainly added because it is possible that the socket
237 is removed underneath of pending command or other async
238 operation. Now it won't be free'd and proper DISCONNECTING
239 flags, etc. can be set to avoid sending data to connection that
240 is not valid anymore.
242 * Added SILC_SET_DISCONNECTING to server.c when EOF is read from
243 the connection. After that it sets SILC_SET_DISCONNECTED.
244 It is, however, possible that the socket data is not still freed.
245 The silc_server_packet_process now checks that data is not
246 read or written to connection that is DISCONNECTED. The socket
247 get's freed when the reference counter hits zero.
249 Mon Feb 19 00:50:57 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
251 * Changed the client operation API: channel_message operation's
252 `sender' is now the client entry of the sender, not the nickname
253 and the `channel' is the channel entry, not the channel name.
255 In the private_message operation the `sender' is now also the
256 client entry of the sender not the nickname.
258 Affected file is lib/silcclient/ops.h and all applications
259 using the client operations.
261 Sat Feb 17 22:11:50 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
263 * Moved the calling of ops->connect() from connect_to_server_final
264 into receive_new_id functin since that is the point when the
265 client is actually allowed to send traffic to network. The
266 affected file is lib/silcclient/client.c.
268 Sat Feb 17 13:15:35 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
270 * When receiving NEW_CHANNEL_LIST, NEW_CHANNEL_USER_LIST,
271 NEW_ID_LIST and SET_MODE_LIST packets, broadcast the list packet
272 (if needs broadcasting) instead of broadcasting the packets one
273 by one which would make a burst in the network traffic.
275 * Added `broadcast' argument to the functions in silcd/server.[ch]
276 silc_server_create_new_channel[_with_id] to indicate whether
277 to send New Channel packet to primary router.
279 Sat Feb 17 01:06:44 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
281 * Added new function into the silcd/server.[ch] files:
282 silc_server_create_new_channel_with_id to create new channel with
283 already existing Channel ID.
285 * Added new packet type SILC_PACKET_SET_MODE_LIST into the file
286 lib/silccore/silcpacket.h. This packet is used t send list of
287 Set Mode payloads inside one packet. Server uses this to set
288 the modes for the channels and clients on those channels, that it
289 announced to the router when it connected to it. The protocol
290 specification has been updated accordingly.
292 * The silc_server_new_channel did not handle the packet coming
293 from normal server as it normally does not send that. However,
294 when it announces its channels it does send it. Implemented
295 the support for that.
297 * Added SILC_ID_CHANNEL_COMPARE macro to compare to Channel ID's
298 into the file lib/silccore/id.h.
300 Fri Feb 16 23:57:29 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
302 * Fixed memory leaks in the functions silc_idlist_del_client,
303 silc_idlist_del_channel and silc_idlist_del_server in the file
304 silcd/idlist.c. All of those leaked like a sieve.
306 * Fixed some small memory leaks in the client's function
307 silc_client_notify_by_server.
309 * Added functions into silcd/server.c: silc_server_announce_clients,
310 silc_server_announce_channels and silc_server_announce_server.
311 These functions are used by normal and router server to announce
312 to its primary router about clients, channels and servers (when
313 router) that we own. This is done after we've connected to the
316 These functions effectively implements the following packet types:
317 SILC_PACKET_NEW_CHANNEL_LIST, SILC_PACKET_NEW_CHANNEL_USER_LIST
318 and SILC_PACKET_NEW_ID_LIST.
320 * Added new functions into the silcd/packet_receive.[ch]:
321 silc_server_new_id_list, silc_server_new_channel_list and
322 silc_server_new_channel_user_list to handle the incoming
323 NEW_ID_LIST, NEW_CHANNEL_LIST and NEW_CHANNEL_USER_LIST packets.
325 * Added support of changing Channel ID in the function
326 silc_server_replace_id. If the server that announces a channel
327 to the router already exists in the router (with same name but
328 with different Channel ID), router is responsible to send
329 Replace ID packet to the server and force the server to change
330 the Channel ID to the one router has.
332 * Added new notify type SILC_NOTIFY_TYPE_CHANNEL_CHANGE to notify
333 client that the Channel ID has been changed by the router. The
334 normal server sends this to the client. Client must start using
335 the new Channel ID as the channel's ID.
337 Implemented handling of this new type into lib/silcclient/client.c
338 into the function silc_client_notify_by_server.
340 * Added new function silc_idlist_replace_channel_id into the files
341 silcd/idlist.[ch] to replace the Channel ID.
343 Fri Feb 16 14:14:00 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
345 * Call silc_server_command_identify_check always when processing
346 the IDENTIFY command in silcd/command.c
348 Thu Feb 15 20:07:37 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
350 * Added new packet type SILC_PACKET_HEARTBEAT that is used to
351 send keepalive packets. The packet can be sent by clients,
354 Added function silc_socket_set_heartbeat into the file
355 lib/silccore/silcsockconn.[ch] to set the heartbeat timeout.
356 If not set, the heartbeat is not performed. The actual
357 heartbeat is implemented in the low level socket connection
358 library. However, application is responsible of actually
361 Added silc_server_send_heartbeat to send the actual heartbeat
362 packet into silcd/packet_send.[ch]. Server now performs
363 keepalive with all connections.
365 * Added silc_task_get_first function into lib/silcutil/silctask.c
366 to return the timeout task with shortest timeout. There was a bug
367 in task unregistration that caused problems. TODO has been
368 updated to include that task system must be rewritten.
370 * The client library will now resolve the client information when
371 receiving JOIN notify from server for client that we know but
372 have incomplete information.
374 * Rewrote parts of silc_server_remove_from_channels and
375 silc_server_remove_from_one_channel as they did not remove the
376 channel in some circumstances even though they should've.
378 * Encryption problem encountered in server:
380 The LEAVE command used to send the Channel Key packet to the
381 router immediately after generating it. However, the code
382 had earlier sent Remove Channel user packet but not immediately,
383 ie. it was put to queue. The order of packets in the router
384 was that Channel Key packet was first and Remove Channel User
385 packet was second, even though they were encrypted in the
386 reverse order. For this reason, MAC check failed. Now, this
387 is fixed by not sending the Channel Key packet immediately but
388 putting it to queue. However, this is more fundamental problem:
389 packets that are in queue should actually not be encrypted
390 because packets that are sent immediately gets encrypted
391 actually with wrong IV (and thus MAC check fails). So, packets
392 that are in queue should be encrypted when they are sent to
393 the wire and not when they put to the queue.
395 However, the problem is that the current system has not been
396 designed to work that way. Instead, the packet is encrypted
397 as soon as possible and left to the queue. The queue is then
398 just purged into wire. There won't be any fixes for this
399 any time soon. So, the current semantic for packet sending
402 o If you send packet to remote host and do not force the send
403 (the packet will be in queue) then all subsequent packets to the
404 same remote host must also be put to the queue. Only after the
405 queue has been purged is it safe again to force the packet
408 o If you send all packets immediately then it safe to send
409 any of subsequent packets through the queue, however, after
410 the first packet is put to queue then any subsequent packets
411 must also be put to the queue.
413 Follow these rules and everything works fine.
415 Thu Feb 15 14:24:32 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
417 * Added new function silc_server_remove_clients_by_server to
418 remove all client entries from ID list when the server connection
419 is lost. In this case it is also important to invalidate all
420 client entires as they hold the invalid server entry. This
421 fixes fatal bug when server has lost connection and will reconnect
424 Wed Feb 14 16:03:25 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
426 * Made some sanity checks to silc_server_daemonise like to check
427 whether the requested user and group actually exists.
429 * Added sanity check to SKE's silc_ske_responder_finish to check
430 that the public and private key actually is valid.
432 * Invalidate the client's nickname when receiving Replace ID
433 packet and the Client ID is being replaced. This means that the
434 server will query the nickname if someone needs it (client)
437 * Sort the ID Cache in client library when the ID Cache data
438 has changed (needs sorting).
440 * Do not allow for SILC client to create several connections to
441 several servers. The client does not support windows right now
442 and generating multiple connections causes weird behaviour.
444 Irssi-silc client does support windows and can handle several
445 connections without problems, see: www.irssi.org and SILC plugin.
447 * Fixed some places where client was added to the IDList. The
448 rule of thumb is following (in order to get everything right):
449 If the client is directly connected local client then the
450 `connection' argument must be set and `router' argument must be
451 NULL to silc_idlist_add_client function. If the client is not
452 directly connected client then the `router' argument must
453 bet set and the `connection' argument must be NULL to the
454 silc_idlist_add_client function.
456 * The funtion silc_server_packet_send_local_channel actually did
457 not check whether the client was locally connected or not. It
458 does that now. Fixed a bug related to LEAVE command.
460 * Fixed Remove Channel User payload parsing bug in server's
461 silcd/packet_receive.c. Fixed a bug related to LEAVE command.
463 * The server's silc_server_save_channel_key now checks also the
464 global ID list for the channel as it might not be in the local
465 list. Fixed a bug related to LEAVE command.
467 * Is this the end of the [<unknown>] buglet that has been lurking
468 around for a long time? A little for loop fix in server's
469 silc_server_command_whois_parse that is used by both IDENTIFY
470 and WHOIS command. At least, this was a clear bug and a cause
471 of one type of [<unknown>] buglet.
473 * WHOIS and IDENTIFY commands call the function
474 silc_server_command_[whois/identify]_check function even if
475 we are not router server.
477 Tue Feb 13 19:55:59 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
479 * Added --with-gmp configuration option. If set the GMP
480 is always compiled in the SILC source tree. If not set then
481 it is checked whether the system has the GMP3 installed. If
482 it has then the GMP won't be compiled (the system's headers
483 and library is used), if it doesn't have it then the GMP is
484 compiled in the SILC source tree.
486 Mon Feb 12 11:20:32 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
488 * Changed RSA private exponent generation to what PKCS #1
489 suggests. We try to find the smallest possible d by doing
490 modinv(e, lcm(phi)) instead of modinv(e, phi). Note: this is
491 not security fix but optimization.
493 Sun Feb 11 18:19:51 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
495 * Added new config entry [Identity] to fork the server and run
496 it as specific user and group. A patch from Bostik.
498 * Imported Dotconf configuration library into lib/dotconf.
499 This will be used to create the SILC configuration files later.
500 It will appear in the distsribution after this commit.
502 Sat Feb 10 21:13:45 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
504 * A big code auditing weekend happening. Auditing code for
505 obvious mistakes, bugs and errors. Also, removing any code
508 Removed files for being obsolete:
510 o lib/silcutil/silcbuffer.c (the buffer interface is entirely in
511 inline in the file lib/silcutil/silcbuffer.h)
513 o lib/silcutil/silcbufutil.c (the header has inline versions)
515 Changed code to fix possible error conditions:
517 o The buffer formatting routines now check that the destination
518 buffer really has enough space to add the data. This applies for
519 both buffer formatting and unformatting
520 (lib/silcutil/silcbuffmt.[ch]). Also, the entire buffer
521 unformatting was changed to accomodate following rules:
522 XXX_*STRING_ALLOC will allocate space for the data into the pointer
523 sent to the function while XXX_*STRING will not allocate or copy
524 the data into the buffer. Instead it sets the pointer from the
525 buffer into the pointer sent as argument (XXX_*STRING used to
526 require that the pointer must be allocated already). This change
527 makes this whole thing a bit more consistent and more optimized
528 (note that the data returned in the unformatting with XXX_*STRING
529 must not be freed now). The routines return now -1 on error.
531 o Tried to find all code that use buffer_format and buffer_unformat
532 and added return value checking to prevent formatting and
533 especially unformatting errors and possible subsequent fatal
536 o Changed ske->x and ske->KEY to mallocated pointers in
537 lib/silcske/silcske.h. Fixed possible data and memory leak.
539 o Added return value checking to all *_parse* functions. Fixed
540 many memory leaks as well.
542 o Added length argument to silc_id_str2id in lib/silccore/id.[ch]
543 so that buffer overflows would not happen. All code now also
544 checks the return value as it can fail.
546 Mon Feb 5 20:08:30 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
548 * Added reconnection support to server if the normal server looses
549 its connection to the router (for example if router is rebooted).
550 The server performs normal reconnection strategy implemented
551 to the server. Affected file silcd/server.c.
553 Sun Feb 4 13:18:32 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
555 * Added new packet type SILC_PACKET_SET_MODE that is used to
556 distribute the information about changed modes (for clients,
557 channels and clients channel modes) to all routers in the
558 network. Updated the protocol specification accordingly.
560 Added functions into silcd/packet_send.c and
561 silcd/packet_receive.c: silc_server_send_set_mode,
562 silc_server_set_mode.
564 Added new files silcmode.[ch] into lib/silccore that implements
565 the encoding and decoding of Set Mode Payload. Added new type
566 SilcSetModePayload. Moved the definitions of different modes
567 from lib/silccore/silcchannel.h into lib/silccore/silcmode.h.
569 Sat Feb 3 15:44:54 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
571 * Oops, a little mistake in server's connection authentication
572 protocol. The protocol is not ended with FAILURE but with
573 SUCCESS if the authentication is Ok. :) Affected file is
576 * Implemented NICK_CHANGE notify handling in server in the file
577 silcd/packet_receive.c The NICK_CHANGE notify is distributed to
578 the local clients on the channel. After the changing nickname
579 in router environment snhould work and the [<unknown>] nickname
580 should appear no more.
582 The silc_server_replace_id function that receives the Replace ID
583 payload now sends the NICK_CHANGE notify type also in the file
584 silcd/packet_receive.c
586 * Changed WHOIS and IDENTIFY command to support the maximum amount
587 of arguments defined in protocol specs (3328 arguments). This
588 fixed a bug that caused problems when there were more than three
591 Fri Feb 2 11:42:56 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
593 * Added extra parameter, command identifier, to the
594 silc_client_send_command so that explicit command identifier
597 Changed that ID list routines uses specific command identifier
598 when sending WHOIS/IDENTIFY requests to the server so that they
599 can be identified when the reply comes back.
601 Affected files lib/silcclient/command.[ch],
602 lib/silcclient/client.c and lib/silcclient/idlist.[ch].
604 * Added `sender' argument to silc_server_packet_send_to_channel
605 to indicaet the sender who originally sent the packet to us
606 that we are now re-sending. Ignored if NULL. Affected file
607 silcd/packet_send.[ch].
609 * Added some server statistics support in silcd/server_internal.h
610 SilcServerStatistics structure and around the server code. Also
611 send some nice statistics information when client is connecting
614 Thu Feb 1 23:31:21 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
616 * Fixed channel ID decoding in server's JOIN command reply in
617 silcd/command_reply.c
619 * Fixed braodcasting of replace ID payload to not to send it if
620 we are standalone server in silcd/packet_receive.c.
622 * Fixed all channel message sending routines to not to send
623 packets to clients that has router set, since they are routed
624 separately in the same function earlier. Affects file
625 silcd/packet_send.c and all channel packet sending functions.
627 * In USERS reply, res_argv[i] are not allocated, the table
628 is allocated. Thus changed that free the table, not its
631 * In server's whois_check and identify_check if the client is
632 locally connected do not send any WHOIS commands - they are not
635 Thu Feb 1 21:32:27 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
637 * Fixed some minor bugs in client when sending WHOIS command. The
638 arguments was in wrong order.
640 * Removed statis function add_to_channel from server in
641 silcd/command.c that was previously used with the joining but
644 * Tested USERS command in router environment successfully with two
645 routers, two servers and two clients.
647 Thu Feb 1 00:54:26 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
649 * Reorganized the USERS command and command reply in client library
650 in lib/silcclient/command.c and lib/silcclient/command_reply.c.
651 When the command is given by user we register a pending command
652 callback that will reprocess the command after the reply has been
653 received from the server. When reprocessing the packet we then
654 display the information. Thus, the USERS information is displayed
655 now in the command callback instead of in the command reply
656 callback. The processing of the command is same as previously
657 when server has sent the command reply in the JOINing process.
659 * Added to USERS command in silcd/command_reply.c to join the client,
660 we didn't use to know about, to the channel after we've created
661 a client entry for it. Also, for clienet we did know already still
662 check whether it is on the channel or not and add it if not.
664 * Removed silc_server_command_join_notify as the function and its
667 Tue Jan 30 22:39:15 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
669 * Changed the client's pending command handling to the same as the
670 server's pending command handling. It is also now possible to
671 execute command reply functions from other command reply
672 function as the function callbacks for commands and command
673 replies are one and same. The pending commands are not static
674 list anymore, it is mallocated SilcDList in lib/silcclient/client.h
675 in client connection context. Thus, pending commands are server
676 connection specific as it is convenient.
678 Changed the function silc_client_command_pending and
679 silc_client_command_pending_del and added new function
680 silc_client_command_pending_check. Removed the
681 SILC_CLIENT_CMD_REPLY_EXEC, and SILC_CLIENT_PENDING_COMMAND_CHECK
684 * Added cmd_ident, current command identifier, to the client
685 connection context in lib/silcclient/client.h to keep track on
686 command identifiers used in command sending. Client's command reply
687 function handling now supports the mandatory command identifiers.
689 * Added SILC_CLIENT_COMMAND_EXEC_PENDING macros to all command reply
690 funtions in client to fully support pending command callbacks.
692 * NOTE: the name_list in USERS (old NAMES) command is NOT sent anymore
693 as one of the arguments to the application in the command reply
696 * NOTE: The FORWARDED flag is depracated. It used to be depracated
697 before first releasing SILC but came back. Now it is removed again
698 and should come back nomore. The FORWARDED flag was used only
699 by the JOINing procedure by forwarding the command packet to router.
700 Now, the JOINing procedure has been changed to more generic (due
701 to various router environment issues) and FORWARDED is not needed
702 anymore for anything. The protocol specification is yet to be
705 Now, removed silc_server_packet_forward from server and the flag
706 SILC_PACKET_FORWARDED from lib/silccore/silcpacket.h.
708 Tue Jan 30 00:05:05 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
710 * Renamed NAMES command to USERS command. The NAMES was named that
711 due to historical reasons. Now it is renamed. Also, rewrote
712 parts of the USERS command. The nickname list is not sent anymore
713 by the server. Only Client ID and mode lists are sent in the USERS
714 command. Changed this also to the protocol specification.
716 The client now resolves the names and stuff after it receives
717 the USERS list from the server when joining to the channel.
719 * WHOIS and IDENTIFY commands has been changed to support multiple
720 Client ID's per command. One can now search for multiple users
721 in the network by sending only one WHOIS or IDENTIFY command.
722 Changed the code and the protocol specifications.
724 * Removed silc_server_command_identify_parse and changed that IDENTIFY
725 uses silc_server_command_whois_parse to parse the request. */
727 * If normal server, do not parse the WHOIS and IDENTIFY requests
728 before sending it to the router. Saves some time.
730 Sun Jan 28 16:19:49 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
732 * Fixed JOIN command on client library. Wrong number of arguments
733 used to crash the client.
735 * Added silc_server_channel_has_global function to check whether
736 channel has global users or not.
738 * Added silc_server_channel_has_local function to check whether channel
739 has locally connected clients on the channel.
741 * The silc_server_remove_from_one_channel now checks whether the
742 channel has global users or not after given client was removed from
743 the channel. It also checks whether the channel has local clients
744 on the channel anymore. If it does not have then the channel entry
745 is removed as it is not needed anymore.
747 * The silc_server_notify now checks on JOIN notify whether the joining
748 client is one of locally connected or global. If it is global then
749 the channel has now global users on the channel and that is marked
750 to the channel entry. Also, it now saves the global client to
751 global list who is joining and JOINs it to the channel. This is
752 for normal server, that is.
754 Changed silc_server_send_notify_on_channel,
755 silc_server_packet_relay_to_channel and
756 silc_server_packet_send_to_channel check if we are normal server
757 and client has router set (ie. global client) do not send the
758 message to that client, as it is already routed to our router.
760 * Implemented LEAVE notify type handling in silc_server_notify
763 * Tested LEAVE command in router environment successfully. Tested
764 with two routers, two servers and two clients.
768 * idlist_find_xxx_by_id routines now dumps the ID on the debug mode.
770 * Implemented SIGNOFF notify type handling in silc_server_notify
773 * silc_server_remove_id now removes the client entry from all channels
774 it has joined and thusly sends SIGNOFF notify type.
776 * Rewrote the NAMES list generation in server by removing two excess
777 loops. The lists are created now inside one loop.
779 Sat Jan 27 22:34:56 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
781 * silc_server_remove_channel_user checks now also global list
782 for channel and client.
784 * silc_server_new_channel_user checks now both local and global
785 list for channel and client. Fixed a bug in client id decoding.
786 Used to decode wrong buffer.
788 * silc_server_channel_message checks now both local and global
789 list for channel entry.
791 * Tested channel joining (hence JOIN) in router environment
792 successfully. Tested with two routers, two servers and two
795 * Tested channel message sending in router environment successfully.
797 Thu Jan 11 03:22:57 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
799 * Added silc_server_save_channel_key into server.[ch] to save the
800 received channel key in Channel Key payload processing. It is
801 also used in JOIN command reply handling.
803 Equivalent function silc_client_save_channel_key added into
804 client.[ch] into client library.
806 * Changed JOIN command reply to send information whether the channel
807 was created or not (is existing already) and the channel key
808 payload. Changed protocol specs accordingly.
810 * Fixed bugs in WHOIS and IDENTIFY command reply sending when
811 the request was sent by ID and not by nickname. Crashed on
814 Sat Dec 23 21:55:07 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
816 * Fixed a bug in Client library. IDENTIFY and WHOIS reply functions
817 now correctly save the received data.
819 * silc_server_free_sock_user_data now notifies routers in the
820 network about entities leaving the network.
822 At the same time implemented functions silc_server_remove_id
823 and silc_server_send_remove_id to receive and send REMOVE_ID
824 packets. The packet is used to notify routers in the network
825 about leaving entities. The ID removed will become invalid in
828 * Added function silc_idlist_del_server into server. Removes and
829 free's server entry from ID list.
831 * silc_server_private_message function now checks, if we are router,
832 that the destination ID really is valid ID, naturally.
834 * In router when NEW_ID packet is received (for new client) the
835 hash of the Client ID is saved in the ID Cache but the
836 client->nickname is set to NULL, instead of putting the hash
839 IDENTIFY command now also checks that client->nickname must be
840 valid. If it is not if will request the data from the server who
841 owns the client. Added new function
842 silc_server_command_identify_check.
844 * Added silc_command_set_command into lib/silccore/silcommand.[ch]
845 to set the command to already allocated Command Payload.
847 * Tested private message sending in router environment with two
848 routers, two servers and two clients. Fixed minor bugs and now
851 * Fixed segfault from client's NAMES command. Used to crash if
854 * Forwarded packets must not be routed even if it is not destined
855 to the receiver. Changed server code comply with this.
857 Sun Dec 17 14:40:08 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
859 * Added `require_reverse_mapping' boolean value to ServerParams
860 structure. If TRUE (not default) the server will require that
861 the connecting host has fully qualified domain name.
863 If the reverse mapping is not required and hostname could not be
864 found the IP address is used as hostname.
866 Sat Dec 16 17:39:54 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
868 * Implemented version string checking to both client and server.
869 The check is incomplete currently due to the abnormal version
870 strings used in development version of SILC.
872 * Changed all command functions in server to use the new
875 Fri Dec 15 15:55:12 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
877 * Changed char *data to unsigned char *data in ID Cache system to
878 support binary data as ID Cache data. Changed code to support
879 binary data in lib/silccore/idcache.c.
881 * Renamed silc_server_packet_relay_command_reply to
882 silc_server_command_reply as it is normal packet receiving
883 function. Rewrote the function to accept command replys for
884 servers and not only for clients.
886 * Mark remote router always as registered server if we are connecting
887 to it. Otherwise, commands sent by the router to us are ignored.
889 * All ID List find routines now returns the ID Cache Entry pointer
890 as well if requested.
892 * WHOIS command works now in router environment, tested with two
893 routers, two servers and two clients.
895 * Cleaned up and rewrote IDENTIFY command. IDENTIFY should work now
896 in router environment (as it is almost equivalent to WHOIS) but
897 hasn't been tested thoroughly. Added new functions:
899 silc_server_command_identify_parse
900 silc_server_command_identify_send_reply
901 silc_server_command_identify_from_client
902 silc_server_command_identify_from_server
904 * Disabled route cache adding because adding two different ID's with
905 same IP replaces the old cache entry thus giving wrong route.
906 The entry->router->connection is always the fastest route anyway
907 so route cache may not be needed. Of course, new routes maybe
908 established after receiving the ID when the entry->router->connection
909 might not be anymore the most optimal.
911 Thu Dec 14 15:55:35 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
913 * Add route cache for received ID for fast routing.
915 * Added silc_server_packet_route to route received packet on router
916 that is not destined to us.
918 * Renamed silc_server_get_route to silc_server_route_get.
920 * Added id_string and id_string_len fields into SilcServer to
921 include encoded ServerID for fast comparing without excess
922 encoding of the ID's.
924 * Cleaned up WHOIS command on server side. Added following static
927 silc_server_command_whois_parse
928 silc_server_command_whois_check
929 silc_server_command_whois_send_reply
930 silc_server_command_whois_from_client
931 silc_server_command_whois_from_server
933 * Added macro SILC_SERVER_COMMAND_CHECK_ARGC to check mandatory
934 arguments in command replies. All command functions should be
935 updated to use this macro.
937 Sun Dec 10 23:52:00 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
939 * Minor typo fixes on command reply handling on server.
941 Tue Nov 28 11:05:39 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
943 * Added silc_server_command_add_to_channel internal routine to add
944 the client to the channel after router has created the channel and
945 sent command reply to the server.
947 * Added generic silc_server_send_command to send any command from
950 * Use static buffer with ID rendering instead of duplicating data.
952 Mon Nov 27 21:39:40 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
954 * Fixed a channel user mode bug when joining to a channel server gave
955 everybody channel founder rights, oops.
957 * We mark ourselves as the router of the incoming server connection
958 if we are router ourselves. This way we can check in some packet
959 sending functions whether it is locally connected server. For
960 incoming router connections we put NULL.
962 * For router sending packets locally means now always sending the
963 packet cell wide; to local clients and local servers. For normal
964 server sending packet locally means sending it to only local
967 * Fixed the JOIN command to really work in router environment. If the
968 channel is created it is always created by the router. Router is
969 also responsible of making the initial joining to the channel,
970 sending JOIN notify to the sending server and distributing
971 NEW_CHANNEL and NEW_CHANNEL_USER packets. Hence, if the channel
972 does not exist server doesn't do anything else but forward the
973 command to the router which performs everything.
975 * Added silc_server_send_channel_key function to send the Channel Key
978 * Added silc_server_create_channel_key to create new channel key. The
979 channel key is now re-generated everytime someone joins or leaves
980 a channel, as protocol dictates. Note: channel->key_len is the
983 Wed Nov 22 22:14:19 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
985 * Splitted server.[ch] finally. Created now packet_send.[ch] and
986 packet_receive.[ch] to separate packet sending and receiving
987 routines. The server.[ch] now includes everything else including
988 actual packet processing (writing and reading data) and other
991 Renamed silc_server_private_message_send_internal to
992 silc_server_send_private_message. The routine is still though
993 used only to relay private messages as server does not send
994 private messages itself.
996 Renamed silc_server_new_channel to silc_server_create_new_channel
997 and added new function sicl_server_new_channel that handles the
998 incoming New Channel packet. Added also new sending function
999 silc_server_send_new_channel to send New Channel Payload.
1001 * Added new function silc_server_notify to process incoming notify
1002 packet to the server/router. Server may then relay the notify
1003 to clients if needed.
1005 * Added new function silc_server_new_channel_user to process incoming
1006 New Channel User packet. Router will redistribute the packet and
1007 send JOIN notify to its local clients and locally connected servers
1008 if needed. Normal server will send JOIN notify to its local client
1009 on same channel when received this packet. Added also corresponding
1010 sending function silc_server_send_new_channel_user to sent the
1013 * Added boolean route argument to send_notif_to_channel and
1014 packet_send_to_channel functions to attempt to route the packet
1015 if it is TRUE and send only locally if it is FALSE.
1017 Tue Nov 21 19:49:31 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1019 * silc_server_replace_id now broadcasts the received replace ID
1020 packet if it is not broadcast packet already. The router must
1021 broadcast to inform other routers about changed ID.
1023 * Added backpointer to server's router into SilcServer context in
1024 silcd/server_internal.h.
1026 * Fixed silc_server_packet_broadcast to send correct broadcast
1029 * The channel key is now distributed to the local client as soon
1030 as it is received from the router (in router environment) so that
1031 no other packet may be sent for the channel until client has
1034 * silc_server_remove_channel_user now broadcasts the received
1035 Remove Channel User packet if it is not broadcast packet already.
1036 The router must broadcast to inform other routers about removed
1039 * Added users field into SilcPacketContext that is a reference count
1040 of the context. One can increase the reference count by calling
1041 silc_packet_context_dup which is now changed to just increase the
1042 reference count instead of duplicating the data. The reference
1043 count is decresed by calling silc_packet_context_free that will
1044 free the data after the reference count hits zero.
1046 For now on the packet context and everything allocated into it
1047 (including the raw packet from network) must be freed by calling
1048 the new silc_packet_context_free function. Added also new function
1049 silc_packet_context_alloc that must be used now to allocate the
1050 context. This also means that if a routine is asynchronous from
1051 silc_[client/server]_packet_parse_type the packet context must
1052 be duplicated by calling silc_packet_context_dup. Otherwise it
1053 gets free'd after silc_[client/server]_packet_parse_type returns.
1054 Also, one must remember that if packet is duplicated then its
1055 reference count must be decresed by calling the free function as
1056 many times as it was duplicated.
1058 * Changed SilcBuffer field from protocol contexts to SilcPacketContext
1059 from both client and server.
1061 Mon Nov 20 23:47:03 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1063 * Made joining to a channel working in router environment.
1065 * Cleaned up JOIN command on server side and create function
1066 silc_server_command_join_channel internal routine to make the
1069 Thu Nov 9 21:12:39 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1071 * Changed silc_command_pending list to SilcDList. Also, added
1072 `ident' field to SilcServerCommandPending structure to identify
1073 the reply and to call correct callback.
1075 Added silc_server_command_pending_check function to replace the
1076 corresnponding macro. The silc_command_pending list is not
1079 * Added silc_command_set_ident into lib/silccore/silccommand.[ch]
1080 to set identifier to previously allocated Command Payload. It
1081 is used to set identifier for command when resending Command
1084 * Added silc_command_payload_encode_payload to encode Command
1085 Payload buffer from SilcCommandPayload structure.
1087 * Added silc_argument_payload_encode_payload to encode Argument
1088 payload buffer from SilcArgumentPayload structure.
1090 Wed Nov 8 21:03:28 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1092 * Changed WHOIS command to support router connection on server side.
1093 The whois request is always sent to router unless the server is
1094 standalone server. After server has received the reply from the
1095 router will it send the reply to the client.
1097 * Added silc_server_packet_broadcast into silcd/server.[ch] to
1098 broadcast received broadcast packet. The function is used only
1099 by router. The broadcast packet is always sent to the router's
1102 * Added silc_id_render function in lib/silcutil/silcutil.[ch] to
1103 render given ID to printable string, for log files for example.
1105 Tue Nov 7 22:14:19 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1107 * Made basic router to router connections working. At least they
1108 can now connect to each other but nothing really works the way
1109 they are supposed - yet.
1111 * Added new initiator token to RouterConnection configuration
1112 file in silcd/serverconfig.[ch]. It is used to tell whether we
1113 are the initiator to the remote router or whether we'll expect
1114 the other end to connect.
1116 * Moved registering of listener task to silc_server_init, hence
1117 the server starts listenning as soon as it is run, even if it
1118 does not have connections to other routers. Let's see how well
1121 * Changed default connection retry timeouts for more suitable in
1124 * Removed cipher and such arguments from silc_idlist_add_client
1125 and silc_idlist_add_server prototypes from silcd/idlist.[ch].
1126 Added new function silc_idlist_add_data to add the keys and stuff
1129 * Added SilcIDListData structure and added it to SilcClientEntry
1130 and SilcServerEntry as their first field in the structure. This
1131 way we can explicitly cast the ID entries to the SilcIDListData
1132 structure and get common data for the entries. In past, we had
1133 to first check what type of connection it is and then cast it to
1134 correct ID entry type. Now, we can directly cast the opaque
1135 pointer to the SilcIDListData (no matter what ID entry it actually
1136 is) and get the data needed.
1138 Mon Nov 6 21:56:12 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1140 * Wow, found a bug in scheduler. The scheduler uninitialized itself
1141 in some circumstances even if threre were timeout tasks, though not
1142 IO tasks, but tasks anyway. Now fixed.
1144 * Defined SilcServerConnection structure to hold connection specific
1145 stuff about directly connected servers and routers. The definition
1146 is currently in silcd/server_internal.h. I thought about having
1147 a bit more important role fro this struct but for now it is used
1148 only when connecting to other server (or router actually).
1150 * Added connecting retry support in server when connecting to
1151 router(s). The retry feature implement exponential backoff
1152 algorithm. Also, added SilcServerParams structure to hold default
1153 parameters for server. For now, it include these retry settings
1154 and are hard coded. After server is moded to be as Silc Server
1155 Library this structure will be more important.
1157 Sun Nov 5 22:28:44 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1159 * Changed client librarys channel->clients table to SilcList and
1160 changed code accordingly.
1162 Thu Nov 2 16:28:01 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1164 * Changed client's channel table to SilcList and changed code
1165 accordingly. Also changed SilcChannelClientEntry to include back-
1166 pointer to the channel so that client entry can use that structure
1167 as list as well and we have fast cross-reference to the channel.
1168 This change dramatically decreased the complexity of channel
1169 handling with client entry and vice versa (removed one extra
1170 loop when searching for channel entry from many functions).
1172 * Changed server->sim from table to SilcDList and changed code
1175 * NAMES command can now be used from user interface. It will show
1176 the user list on the channel, neatly.
1178 * Added realname pointer to SilcClientEntry in lib/silcclient/idlist.h.
1179 Code now saves realname of the user if it becomes available.
1181 * Renamed configure.in to configure.in.pre and made ./prepare
1182 script to automatically add correct version string to
1183 configure.in which it creates from configure.in.pre.
1185 Wed Nov 1 17:21:26 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1187 * NAMES command reply now shows users mode with the nickname when
1190 * Moved silc_client_ch[u]mode[_char] functions from
1191 silc/clientutil.[ch] to lib/silcclient/client.[ch]. Though, that
1192 place sucks, they are utility functions and should be in some
1195 * Fixed some unsigned int's to unsigned short's. Patch by cras.
1197 * Fixed contrib/getopt*.[ch] to not require config.h. Patch by
1200 Tue Oct 31 20:10:37 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1204 * Added TRQ (efficient deque and list library) into lib/trq. This is
1205 a very good list library that is currently used in the SILC. Defined
1206 SilcList API over the library because I didn't like the API very
1207 much. See lib/trq/silclist.h for the API and examples of how to
1208 use the API. Fixed various places in the code to use the new
1209 SilcList API. The SilcList is meant for lists that has a structure
1210 already defined as a list. It is not suitable to add just some
1211 context to the list (in TRQ, the context is the list actually).
1213 So, I defined SilcDList that can be used for the purpose where
1214 predefined list structure does not exit. This can be used as
1215 such list. Now some context just can be added to the SilcDList.
1216 Currently this list is not used in the SILC just yet, though there
1217 are a lot places where this can replace dynamically allocated
1218 tables and I will fix these places, later, to use SilcDList.
1219 See lib/trq/silcdlist.h for SilcDList (they are all inline functions,
1220 and use TRQ internally).
1222 Also fixed some annoying warning messages that the original TRQ
1223 code generated. Also minor changes to TRQ's Makefile.in.
1225 * Added support for querying by Client ID to both WHOIS and
1226 IDENTIFY commands into server, as required by the protocol.
1228 * Removed method function pointers from SilcBuffer structure. They
1229 weren't used to anything and just increased the context size for
1230 no good reason. This change also made silc_buffer_alloc and
1231 silc_buffer_free functions inline functions.
1233 * Disabled command flooding detection support until it's fixed so
1234 that it accepts commands in but does not execute them more than once
1237 * Added silc_net_localhost(), to return local hostname, into
1238 lib/silcutil/silcnet.[ch]. Also added client->hostname pointer
1239 that must be initialized before calling silc_client_init.
1241 * Added new function: silc_server_send_notify_on_channels to send
1242 notify messages to all channels client has joined. It is assured
1243 that the message is sent only once per client.
1245 * Moved silc_log_format (from lib/silcutil/silclog.[ch] into
1246 lib/silcutil/silcutil.[ch] as silc_format function. The new
1247 function is generic and is used by server as well, not only by
1248 the logging routines.
1250 * Added new SKE status type: SILC_SKE_STATUS_BAD_VERSION to indicate
1251 the provided version string was not acceptable. Added new function:
1252 silc_ske_check_version into lib/silcske/silcske.h. The function
1253 must be implemented by the application (client or server) and it
1254 does not reside in the SKE library. The function checks the version
1255 string remote end sent.
1257 * Added back pointers (to opaque context and to SilcSocketConnection)
1258 into SilcPacketContext structure into lib/silccore/silcpacket.h.
1260 * Added silc_packet_context_dup into lib/silccore/silcpacket.[ch] to
1261 duplicate packet context structure.
1263 * Changed `notify' client operation to send same arguments as client
1264 receives from server except for ID's. ID's are mapped to correct
1265 ID entry and that is returned. Also, if channel entry is not sent
1266 by server but the notify is for channel the channel entry is sent
1267 to application (otherwise application doesn't know that it is for
1268 channel (library gets it from packet's Destination ID)).
1270 * Added silc_client_remove_from_channels into client library to
1271 remove a client from all channels it has joined to. Used when
1272 received SIGNOFF notify from server. Added also new function
1273 silc_client_replace_from_channels to replace old ID entry with
1274 new ID entry on all channels. Used when received NICK_CHANGE
1277 * Fixed ID Cache list handling in silc_idlist_get_client in
1278 lib/silcclient/idlist.c. Also, added silc_idlist_get_client_by_id
1279 to get (or query) client by ID.
1281 * Updated TODO list.
1283 * Added connection authentication status message defined by the
1284 protocol: SILC_CONN_AUTH_OK and SILC_CONN_AUTH_FAILED and added the
1285 support for these into the code in client and server side.
1287 * Added generic function silc_client_send_command to send any command
1288 with variable argument list. Application should use this function
1289 to send commands if the command functions provided by the library
1290 does not suite for the application's user interface needs.
1292 * Added new `failure' client operation. Application is notified about
1293 received failure packet if client is executing a protocol. In this
1294 case the protocol's execution has failed.
1296 * Added SKE's end notify to send the SKE_SUCCESS notify message that
1297 is required by the protocol.
1299 * Added SILC_PROTOCOL_STATE_FAILURE to indicate received failure
1300 packet from remote. SILC_PROTOCOL_STATE_ERROR indicates local
1303 * Added status flag to SilcSKE object to indicate realtime status
1304 of the SKE protocol.
1306 * Application receives now exactly same command reply arguments as
1307 the library receives from server. However, if ID is received the
1308 corresponding ID entry is returned to the application (eg. Client
1309 ID is mapped to correct SilcClientEntry entry and that is returned).
1310 Changed command_reply client operation due to this change.
1312 * Changed all ID's in commands and in command replys as ID Payloads.
1313 Change affected both client and server side codes.
1315 All ID's sent in SILC network (with execption of ID's in SILC
1316 Packet header) are sent in ID Payload to support variable length
1319 * Server now notifies nick changes and notifies all clients on
1320 the channels about the new nickname (about the new Client ID,
1323 * Implemented CMODE command to change channel modes. Supports all
1324 channel modes defined by the protocol specs except ban and invite
1325 lists. (Also, private channel key mode is supported but support for
1326 setting private channel key in client is missing, thus, this mode
1327 has no effect on client side (except that server requires that the
1328 client uses private channel key and normal channel traffic does not
1331 Also, invite mode works per se, but INVITE command does not work
1332 yet correctly, so you can set channel as invite only channel but
1333 inviting clients to the channel does not work (it is yet to be
1334 thought what's the best way to do it).
1336 * Added new command SILC_COMMAND_CUMODE to change user mode on the
1337 channel. Defined user modes: CHANNEL_FOUNDER and CHANNEL_OPERATOR.
1338 Implemented CUMODE command to change user's mode on the channel.
1339 Supports all modes defined by the protocol specs.
1341 * Added NAMES command reply to return users modes on the channel.
1343 * Removed unnecessary and slow ciphers from lib/silccrypt.
1345 * Set SO_KEEPALIVE option to connection sockets by default.
1347 * Added new command reply status: SILC_STATUS_USER_NOT_ON_CHANNEL.
1349 * Added notify types: MOTD, CMODE_CHANGE and CUMODE_CHANGE. Also,
1350 redefined the Notify Payload into protocol specs.
1352 * Added silc_id_payload_parse_id to get ID directly from raw
1355 Mon Oct 9 20:57:02 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1357 * Changed SILC_COMMAND_IDENTIFY in protocol specification to
1358 accept searching by Client ID as well.
1360 * Added support for LEAVE and SIGNOFF notify types in client library.
1362 * Added silc_id_payload_parse_data into lib/silccore/silcpayload.[ch]
1363 to parse ID Payload from raw data.
1365 Sun Oct 8 19:33:08 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1367 * Added flags parameter into silc_ske_assemble_security_properties
1368 function in lib/silcske/silcske.[ch].
1370 * Changed notify client operation to fit better for notify messages
1371 sent by server. The notify payload received from server is now
1372 passed to the application (after parsing it to SilcNotifyPayload).
1373 It is application's responsibility to retrieve the arguments
1374 from the payload and show the message the way it wants. The message
1375 sent by server is implementation specific.
1377 * Changed public keys to comply with the protocol specification.
1378 Old public keys are not supported anymore and are not compatible.
1380 * Removed nickname from Channel Payload as the latest draft removed
1381 it. The client must resolve the nickname from the NAMES command
1382 reply received when it joined the channel.
1384 Also, changed all channel_xxxx_payload to channel_payload_xxxx.
1386 Sat Oct 7 21:55:01 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1388 * Fixed some errors in protocol specification drafts.
1390 * Created lib/silccore/silcnotify.c to implement Notify Payload
1391 encoding and decoding, lib/silccore/silcpayload.[ch] to implement
1392 generic payloads described by protocol specifications. The file
1393 includes implementations for ID Payload and Argument Payload.
1395 * Changed Command Payload implementation to use the new Argument
1396 Payload. Changed command_xxxx_payload to command_payload_xxxx
1397 to comply with SILC coding conventions.
1399 * Added suppport for Argument Payload handling in Notify Payload
1400 implementation as protocol requires it. Added the new support
1401 into server and client lib as well.
1403 Thu Oct 5 21:16:28 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1405 * Added support for multiple nicknames on same channel. [n] is
1406 added locally to the nickname if there are more than one same
1407 nicknames on the channel.
1409 * Server now sends all nicknames that matched WHOIS request.
1410 Client also shows the list received from server.
1412 * Added TOPIC command to client side. User can now set and show
1413 current topic on channel.
1415 * Added MOTD command to client and server. Also, server sends the
1416 motd when client connects to the server.
1418 * Changed version strings to comply ISO 8601.
1420 Wed Oct 4 23:29:06 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1422 * Fixed protocol error handling in client library. It should now
1423 cope even if the SKE fails for some reason.
1425 * Made new protocol specification drafts for submitting to IETF.
1427 * Implemented TOPIC command to server in silcd/command.c.
1429 * Added two new notify types into lib/silccore/silcnotify.h:
1430 SILC_NOTIFY_TYPE_NICK_CHANGE and SILC_NOTIFY_TYPE_TOPIC_SET to
1431 notify nickname change and topic setting/change on a channel.
1433 * API change of command_reply operation in client library. The
1434 application gets now the status type received from server as well.
1436 Sat Sep 30 16:57:42 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1438 * Removed the function just added to lib/silcutil/silcschedule.[ch].
1440 * Cras fixed and optimized the packet handling even further and
1441 it should work now. Minor change to the prototype of function
1442 silc_packet_receive_process in lib/silccore/silcpacket.[ch].
1444 Sat Sep 30 08:48:47 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1446 * Added new function into lib/silcutil/silcschedule.[ch]:
1447 silc_schedule_with_fd to select() a specified fd. The function
1448 returns after timeout expires or data arrives or goes. The
1449 function is used by packet routines to wait that all data is
1450 received from network.
1452 * Fixed data reading from network in lib/silccore/silcpacket.c.
1453 The code now assures that all data is read from the fd and then
1454 continues packet processing. This was a bug fix since the code
1455 used to drop some data in some circumstances.
1457 * Added new function into lib/silcclient/client.[ch]:
1458 silc_client_start_key_exchange to start key exchange after
1459 connection has been established to server. The code internally
1460 now uses this funtion but its main purpose was to provide it
1461 for applications that perform their own connecting. After
1462 application has created a connection it merely calls this
1463 function to start the key exchange between client and server.
1464 The library takes care of everything else after that.
1466 Updated also lib/silcclient/README to explain the usage of
1469 * Do not send to application information that connection has
1470 been established. Application gets notified it by connect
1473 Thu Sep 28 23:40:19 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1475 * Applied cras's patch to add silc_schedule_one function. The
1476 function runs scheduler once and returns.
1478 * Fixed the scheduler after cras messed it up. The timeout
1479 handling works now as it's supposed to work.
1481 * Added into lib/silccore/ silcnotify.h to include notify
1482 message types support. Changed silc_server_send_notify*
1483 functions, in server.[ch], to support those new notify types.
1484 Added the support for the notify types into client library,
1485 as well. Added new notify client operation into ops.h in
1488 * Changed silc_server_packet_send_to_channel to send normal
1489 packets instead of just channel message packets. The function
1490 is now used to send the notify packets to channels. It is not
1491 used to send channel message packets anymore, as server never
1494 * Added explicit casting into lib/silcutil/silcbuffmt.c to few
1495 va_arg()s as it seems to require it nowadays. I guess, if SILC
1496 is compiled with older va_arg() the new code should work anyway.
1498 Wed Sep 13 18:10:14 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1500 * Splitted core library. Core library (lib/silccore) includes
1501 now only SILC protocol specific core (and common) components.
1502 Created new utility library (lib/silcutil) that includes more
1503 generic purpose stuff. The stuff for util library was taken
1504 from the old core library. This was minor and easy split.
1506 * Created SILC Client Library (lib/silcclient) that includes
1507 implementation of the SILC client without user interface. This
1508 was major move from silc/ directory. The code has been changed
1509 so that it is transparent towards the user interface. The
1510 silc/ directory includes now the same user interface as before
1511 and it uses the new client library. Read lib/silcclient/README.
1512 Basicly, the client library performs everything else related
1513 to SILC except user interface handling. Also, configuration
1514 files are considered to be part of user interface and library
1515 does not handle them.
1517 This change also changed a lot of structures, function naming etc.
1518 Most important change was that SilcClientWindow object was
1519 renamed to SilcClientConnection in the client library. Created
1520 also new file lib/silcclient/ops.h. Also added new files
1521 silc/local_command.[ch] and silc/client_ops.[ch].
1523 All these changes were made to make it easier for user interface
1524 designers to create what ever user interface for the SILC client
1527 It is also expected that the server will be moved to lib
1528 directory as well and SILC Server Library will be created;
1529 sometimes in the future.
1531 * Removed Local commands from lib/silccore/silccommand.h as
1532 they are application specific and new client library does not
1533 handle any of those anymore.
1535 * Several functions moved to lib/silcutil/silcutilc.[ch] from
1536 old client implementation in silc/.
1538 * Added support for callback functions in SILC_LOG_* macros.
1539 Application can now set its own callbacks that will be called
1540 instead of using the default functions that will always print
1541 the debug messages to stderr (or stdout). Also, debugging can
1542 now be disabled by setting silc_debug to FALSE and re-enabled by
1543 setting it to TRUE. Note, that logging will still work even
1544 if debugging is disabled.
1546 New functions in lib/silcutil/silclog.[ch]: silc_log_set_callbacks,
1547 silc_log_reset_callbacks, silc_log_set_debug_callbacks and
1548 silc_log_reset_debug_callbacks.
1550 * To enable debugging in silc client one must give now -d
1551 option on command line.
1553 * Changed silc_schedule_init to automatically allocate task queues
1554 if they are not allocated before calling it.
1556 Thu Sep 7 10:49:33 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1558 * Added GMP 3.1 into math library.
1560 Sun Aug 20 21:27:26 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1562 * Added SILC_PACKET_REMOVE_CHANNEL_USER to remove a client from
1563 a channel in SILC network. The packet is used by servers and
1564 routers to notify other routers that user has left a channel.
1565 This little feature was missing until now. Added the feature
1566 to protocol specification as well.
1568 Added functions: silc_server_send_remove_channel_user and
1569 silc_server_remove_channel_user into server.[ch].
1571 * Added SILC_PACKET_REKEY and SILC_PACKET_REKEY_DONE into
1572 lib/silccore/silcpacket.h. However, they are not implemented
1575 Sat Aug 19 23:04:16 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1577 * Fixed joining to a channel and sending channel messages
1578 between server and router. The channel message sending should
1579 now work inside a cell.
1581 Tue Jul 25 20:46:13 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1583 * Fixed the private message sending between server and router.
1584 The private message sending should now work inside a cell.
1586 * Added silc_server_replace_id into server.[ch] to replace
1587 existing ID in the SILC network.
1589 * Added silc_idlist_find_server_by, silc_idlist_replace_client_id
1590 and silc_idlist_replace_server_id into idlist.[ch] in server.
1592 Mon Jul 24 18:33:31 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1594 * Fixed the server to server connections. Server can again now
1595 connect to router. Router to router connections probably does
1598 Thu Jul 20 13:15:01 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1600 * Added dynamic protocol registering support. Now protocols can
1601 registered and unregistered on the fly. Patch by cras.
1603 Wed Jul 19 19:08:46 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1605 * Added lib/contrib directory to hold routines that some platforms
1606 don't have but are needed by SILC.
1608 * Added getopt.c, getopt1.c and getopt.h from GNU C library
1609 into lin/contrib to provide getopt() and getopt_long() for
1610 those who don't have it.
1612 Tue Jul 18 20:41:20 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1614 * Added AWAY command to client. When away message is set and
1615 client receives a private message packet the client automatically
1616 replies to the sender with the away message.
1618 * Fixed a bug in lib/silcmath/mpbin.c: silc_mp_mp2bin. This
1619 bug seemed to be the cause of recent problems when compiling
1622 * Added version detection support to SKE protocol specification
1623 and added the new changes to the SKE implementation as well.
1624 There were other minor changes in the SKE protocol as well.
1626 Many changes in lib/silcske/silcske.[ch] and in
1627 lib/silcske/payload.[ch].
1629 * Added ^U functionality, clear input line. Patch from cras.
1631 Mon Jul 17 23:33:26 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1633 * Mainly small bugfixes on core library. Fixed some debugging
1634 logging and buffer overflow in silclog.c.
1636 * Updated config.sub and config.guess on the distribution tree.
1638 Sat Jul 15 15:33:48 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1640 * Added command lagging support in server. Client may execute
1641 commands now only once in two seconds.
1643 Thu Jul 13 22:10:21 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1645 * Optimized packet reception. MAC computation and checking is now
1646 also more optimized. A lot previously duplicated code is now
1647 used as generic by both client and server.
1649 * Fixed key pair generation in clientutil.c
1651 Wed Jul 12 18:28:07 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1653 * Added into lib/silccore/silcbufutil.[ch] new function;
1654 silc_buffer_realloc.
1656 * Moved generic packet sending/encryption functions to
1657 lib/silccore/silcpacket.[ch] from client and server. Some
1658 rewriting of the functions.
1660 * Moved all generic packet reception/decryption functions to
1661 lib/silccore/silcpacket.[ch] from client and server. The
1662 packet processing is now much cleaner in both client and server.
1663 These were major changes in both client and server.
1665 * Created many common functions in server to do packet sending.
1666 Previously code were duplicated a lot, this has been removed
1669 Tue Jul 11 20:27:26 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1671 * Rewrote major parts of the ID cache system. Don't know
1672 whether it is better now or not but at least the API is more
1675 * Major rewrite on ID cache stuff on client because of the ID
1676 cache API changes. Added idlist.c to client.
1678 * Also major rewrite on ID cache stuff on server as well.
1679 Major rewrite of idlist.[ch]. SilcXXXList's are now named
1680 SilcXXXEntry's. We won't keep anymore idlist specific pointers
1681 in hand, instead they are all put into the ID cache system now.
1682 All server_idlist_* routines uses ID cache now instead of
1683 traversing its own lists (those lists does not exist anymore).
1684 SilcIDList though still exists. Also, SilcXXXEntry's are
1687 Sun Jul 9 15:19:24 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1689 * Finally made the SKE implementation compliant to the protocol
1690 specification. All mp integers are now binary encoded as
1691 opposed being HEX encoded.
1693 * Added lib/silcmath/mpbin.[ch]. Encoding mp intergers to and
1696 * Added into lib/silccore/silcutil.[ch] PEM encoding/decoding
1697 functions: silc_[encode/decode]_pem. Also added function
1698 silc_encode_pem_file to PEM encode with newlines ('\n') for
1701 * SILC public keys are now encoded either PEM or binary. Same
1702 option is for private keys as well. By default private keys
1703 are binary encoded and public keys PEM encoded. Silly HEX
1704 encoding were removed.
1706 * Added into lib/silccrypt/silchash.[ch] silc_hash_fingerprint
1707 function to create fingerprints.
1709 * Fixed a bug in SHA1; does not change the original data anymore.
1711 * Partly implemented INFO command on client and server side.
1712 Fixed CLEAR command. Changes to SERVER command; show current
1713 server(s) when giving command without arguments. Added
1714 VERSION command to client.
1716 * Added check to server that unregistered connections cannot
1717 execute commands (unless it is specificly allowed).
1719 Thu Jul 6 18:12:24 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1721 * Fixed screen refresh.
1723 * Fixed channel joining bug from client. On some circumstances
1724 client tried to join to a channel it had already joined.
1726 * Added public key verification process into client's protocol.c.
1727 The client now verifies the public key from user and saves
1728 it into ~./silc/serverkeys/ directory.
1730 Added into: clientutil.[ch]: silc_client_verify_server_key.
1732 * Changed SKE protocol's silc_ske_initiator_finish function
1733 to accept callback function that verifies the received public
1734 key. Removed old silc_ske_verify_public_key function.
1736 Wed Jul 5 19:19:02 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1738 * Added into silcpkcs[ch]: silc_pkcs_public_key[_data]_set and
1739 silc_pkcs_private_key[_data]_set.
1741 * Made the password and public authentication more cleaner in
1742 server's protocol.c.
1744 * Removed historic and obsolete protocol `channel_auth' from
1745 both client and server.
1747 * Removed wrong way of sending command status messages from
1748 server to client in server's command.c. The old way violated
1749 protocol specification.
1751 Changes to silccore/silccommand.[ch]: removed
1752 silc_command_encode_status_payload -> not needed anymore,
1753 changed silc_command_encode_payload_va to accept extra
1754 argument on variable argument list. The argument type must
1755 now be provided to the function. Also, added new function:
1756 silc_command_encode_reply_payload_va which is same as
1757 normal command_encode_payload_va except command status type
1758 is provided as extra argument.
1760 Tue Jul 4 18:26:39 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1762 * Added ~./silc directory handling. The directory includes the
1763 public and private keys for the client.
1765 Added silc_client_check_silc_dir, silc_client_create_identifier
1766 and silc_client_load_keys.
1768 * Implemented SILC protocol compliant public key. Added public
1769 and private key saving to and loading from files.
1771 Added into silcpkcs.[ch]: silc_pkcs_encode_identifier,
1772 silc_pkcs_public_key_encode[_data], silc_pkcs_public_key_decode,
1773 silc_pkcs_private_key_encode[_data], silc_pkcs_private_key_decode,
1774 silc_pkcs_public_key_alloc, silc_pkcs_public_key_free,
1775 silc_pkcs_private_key_alloc and silc_pkcs_private_key_free.
1777 Implemented: silc_pkcs_save_[public/private]_key[_data] and
1778 silc_pkcs_load_[public/private]_key.
1780 Mon Jul 3 18:51:27 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1782 * Added silc_server_get_route (route.[ch]) to get connection
1783 data for the fastest route for given ID.
1785 * Implemented INVITE command on client and server. The command
1786 were re-defined in the SILC Protocol Specification and the
1787 implementation now complies with the specification.
1789 * Implemented PING command on client and server.
1791 * Implemented NAMES command on client and server. The server side
1792 supports currently only normal server not router server yet.
1793 Some changes to NAMES definition in SILC protocol specification.
1795 Sun Jul 2 18:23:01 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1797 * Implemented LEAVE command on client and server.
1799 * Previously deprecated SILC_PACKET_FORWARDED flag is now in use
1800 again. This change was made to the protocol as well. Server
1801 should not violate the protocol specification anymore.
1803 Fri Jun 30 14:03:26 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1805 * Added SOCKS4 and SOCKS5 support to SILC client. SOCKS5
1806 was tested. SOCKS4 was not but should work anyway.
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