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.
23 Sat Feb 24 00:00:55 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
25 * Removed the rng context from SilcPacketContext structure and
26 changed that the packet routine uses the Global RNG API.
28 Fri Feb 23 11:22:57 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
30 * Added support for quit message that client can "leave" on the
31 channel when it quits the SILC. It is ditributed inside the
32 SILC_NOTIFY_TYPE_SIGNOFF notify type.
34 Added silc_server_free_client_data that will take the
35 signoff message as argument.
37 * Changed SKE routines to use the silc_pkcs_sign/verify routines.
39 Thu Feb 22 23:05:36 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
41 * Updated parts of the protocol specification to keep it up
44 Thu Feb 22 15:08:20 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
46 * Added List flag (SILC_PACKET_FLAG_LIST) to indicate list of
47 payloads in one packet.
49 * Deprecated following packet types: NEW_ID_LIST, NEW_CHANNEL_LIST,
50 NEW_CHANNEL_USER_LIST, SET_MODE and SET_MODE_LIST. List packets
51 use now the new List flag.
53 * Also deprecated the following packet types: REPLACE_ID,
54 NEW_CHANNEL_USER and REMOVE_CHANNEL_USER packet types.
56 * Added list support for Notify packet in server.
58 * Added silc_server_send_notify_channel_change to send the
59 CHANNEL_CHANGE notify type to replace channel ID's. Deprecates
60 the silc_server_send_replace_id.
62 * Added silc_server_send_notify_nick_change to send the
63 NICK_CHANGE notify type. Deprecates the function
64 silc_server_send_replace_id.
66 * Added silc_server_send_notify_join to send the JOIN notify type.
67 Deprecates the function silc_server_send_new_channel_user.
69 * Added silc_server_send_notify_leave to send LEAVE notify type.
70 Deprecates the function silc_server_send_remove_channel_user.
72 * Added silc_server_send_notify_cmode and
73 silc_server_send_notify_cumode to send CMODE and CUMODE notify
74 types. Deprecates the silc_server_send_set_mode function.
76 * Added SERVER_SIGNOFF notify type to indicate that server has
77 quit. This means that all clients on the channel from that
78 server will drop. This can be also used when netsplit happens.
80 Deprecated REMOVE_ID packet type since it is not needed anymore
83 Added silc_server_send_notify_server_signoff to send the
84 SERVER_SIGNOFF notify type. Deprecates the function
85 silc_server_send_remove_id.
87 Added also silc_server_send_notify_signoff to send the
90 * Employed the PKCS #1. It is the mandatory way to do RSA in the
91 SILC protocol from this day on. Changed the protocol
92 specification as well.
94 * Added silc_server_send_notify_topic_set to send TOPIC_SET
95 notify type. It is used between routers to notify about
96 topic changes on a channel.
98 * Added silc_id_dup into lib/silccore/id.[ch] to duplicate
101 * Partly updated the protocol specification to comply with the
102 changes now made. It is still though a bit outdated.
104 * The JOIN notify type now takes one extra argument <Channel ID>.
105 The packet used to be destined to the channel but now the
106 JOIN type may be sent as list thus it is impossible to
107 destine it to any specific channel. By adding this argument
108 it is again possible.
110 Wed Feb 21 22:39:30 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
112 * Added CREDITS file. The CHANGES and CREDITS file will appear
113 in the distribution as well.
115 Wed Feb 21 14:17:04 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
117 * Implemented CMODE_CHANGE, CUMODE_CHANGE and TOPIC_SET notify
118 types in the server's silcd/packet_receive.c.
120 * Implemented CMODE and CUMODE to work in router environment.
122 * Fixed minor encoding and decoding buglet from the
123 lib/silccore/silcmode.c.
125 * Fixed buffer overflow from lib/silcclient/command.c in USERS
128 Wed Feb 21 12:44:00 EET 2001 Mika Boström <bostik@lut.fi>
130 * Changed all SilcConfigServer* and silc_config_server* to
131 SilcServerConfig* and silc_server_config*, respectively.
134 Wed Feb 21 00:10:00 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
136 * Associated the ID (client or server ID) to the Authentication
137 Payload to avoid any possibility of forging. Updated the
138 protocol specification and the code accordingly.
140 Tue Feb 20 14:14:14 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
142 * The RSA key length is now save to the RsaKey context in the
143 key generation process in lib/silccrypt/rsa.c. The key length
144 is now used to figure out the maximum size of the block allowed
145 to be encrypted/signed.
147 * Added silc_mp_mp2bin_noalloc into lib/silcmath/mpbin.[ch]. It
148 is equivalent to the silc_mp_mp2bin but does not allocate any
151 * Changed silc_mp_mp2bin API to take length argument. If it is
152 non-zero then the buffer is allocated that large. If zero, then
153 the size is approximated using silc_mp_sizeinbase, which however
156 * Created Global RNG API which is global RNG that application can
157 initialize. After initializing, any routine anywhere in the
158 code (including library) can use RNG without allocating a new
159 RNG object. This was done to allow this sort of use of the
160 RNG in code that has no chance to allocate RNG object. All
161 applications currently allocate this and many routines in the
162 library use this. Affected file lib/silccrypt/silcrng.[ch].
164 * Removed the RNG kludge from lib/silcmath/primegen.c and changed
165 it to use the Global RNG API.
167 * Defined Authentication Payload into protocol specification that
168 is used during SILC session to authenticate entities. It is
169 used for example by client to authenticate itself to the server
170 to obtain server operator privileges.
172 Implemented this payload into the lib/silccore/silcauth.[ch].
173 Implemented also routines for public key based authentication
174 as the new protocol specification dictates.
176 Moved definitions of different authentication methods from
177 lib/silccore/silcprotocol.h into lib/silccore/silcauth.h.
179 * Added silc_pkcs_encrypt, silc_pkcs_decrypt, silc_pkcs_sign,
180 silc_pkcs_verify and silc_pkcs_sign_with_hash and
181 silc_pkcs_verify_with_hash functions into the file
182 lib/silccrypt/silcpkcs.[ch].
184 Mon Feb 19 19:59:28 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
186 * The client entry's userinfo pointer must be always valid.
187 Otherwise the [<unknown>] bug will surface beacuse the WHOIS
188 will fail since it requires the userinfo. Now, the userinfo
189 is allocated as "" if actual userinfo does not exist. Actually,
190 it must exist and it is totally Ok to drop client connections
191 that does not announce the userinfo. However, we will make
192 this workaround for now.
194 * Added silc_net_get_remote_port into lib/silcutil/silcnet.[ch]
195 to return the remote port by socket.
197 Mon Feb 19 14:26:49 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
199 * Changed SILC_SERVER_COMMAND_EXEC_PENDING macro to the name
200 SILC_SERVER_PENDING_EXEC and added an new macro
201 SILC_SERVER_PENDING_DESTRUCTOR which is called to free the
202 data or when error occurs while processing the pending command.
204 Added new argument `destructor' into silc_server_command_pending
205 and to the SilcServerCommandPending object. This destructor is
206 now called after calling the pending callback or if error occurs
207 immediately. If error occurs the actual pending callback won't
208 be called at all - only the destructor. The destructor may be
209 NULL if destructor is not needed.
211 All this applies for client library code as well. Similar
212 changes were made there as well for the pending commands.
214 In the client, the application must now allocate the
215 SilcClientCommandContext with the silc_client_command_alloc
218 * Added reference counter to the SilcServerCommandContext. Added
219 function silc_server_command_alloc and silc_server_command_dup
222 Same type of functions added to the client library for the same
225 * Removed the cmd_ident from IDListData away since it is now
226 global for all connections. It is the command identifier used
227 in command sending and with pending commands. The affected file
230 * Added reference counter to the SilcSocketConnection objecet to
231 indicate the usage count of the object. The object won't be
232 freed untill the reference counter hits zero. Currently only
233 server uses this, and client ignores it. The client must be
234 set to use this too later. The affected files are
235 lib/silccore/silcsockconn.[ch]. Added also the function
236 silc_socket_dup to increase the reference counter.
238 This was mainly added because it is possible that the socket
239 is removed underneath of pending command or other async
240 operation. Now it won't be free'd and proper DISCONNECTING
241 flags, etc. can be set to avoid sending data to connection that
242 is not valid anymore.
244 * Added SILC_SET_DISCONNECTING to server.c when EOF is read from
245 the connection. After that it sets SILC_SET_DISCONNECTED.
246 It is, however, possible that the socket data is not still freed.
247 The silc_server_packet_process now checks that data is not
248 read or written to connection that is DISCONNECTED. The socket
249 get's freed when the reference counter hits zero.
251 Mon Feb 19 00:50:57 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
253 * Changed the client operation API: channel_message operation's
254 `sender' is now the client entry of the sender, not the nickname
255 and the `channel' is the channel entry, not the channel name.
257 In the private_message operation the `sender' is now also the
258 client entry of the sender not the nickname.
260 Affected file is lib/silcclient/ops.h and all applications
261 using the client operations.
263 Sat Feb 17 22:11:50 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
265 * Moved the calling of ops->connect() from connect_to_server_final
266 into receive_new_id functin since that is the point when the
267 client is actually allowed to send traffic to network. The
268 affected file is lib/silcclient/client.c.
270 Sat Feb 17 13:15:35 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
272 * When receiving NEW_CHANNEL_LIST, NEW_CHANNEL_USER_LIST,
273 NEW_ID_LIST and SET_MODE_LIST packets, broadcast the list packet
274 (if needs broadcasting) instead of broadcasting the packets one
275 by one which would make a burst in the network traffic.
277 * Added `broadcast' argument to the functions in silcd/server.[ch]
278 silc_server_create_new_channel[_with_id] to indicate whether
279 to send New Channel packet to primary router.
281 Sat Feb 17 01:06:44 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
283 * Added new function into the silcd/server.[ch] files:
284 silc_server_create_new_channel_with_id to create new channel with
285 already existing Channel ID.
287 * Added new packet type SILC_PACKET_SET_MODE_LIST into the file
288 lib/silccore/silcpacket.h. This packet is used t send list of
289 Set Mode payloads inside one packet. Server uses this to set
290 the modes for the channels and clients on those channels, that it
291 announced to the router when it connected to it. The protocol
292 specification has been updated accordingly.
294 * The silc_server_new_channel did not handle the packet coming
295 from normal server as it normally does not send that. However,
296 when it announces its channels it does send it. Implemented
297 the support for that.
299 * Added SILC_ID_CHANNEL_COMPARE macro to compare to Channel ID's
300 into the file lib/silccore/id.h.
302 Fri Feb 16 23:57:29 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
304 * Fixed memory leaks in the functions silc_idlist_del_client,
305 silc_idlist_del_channel and silc_idlist_del_server in the file
306 silcd/idlist.c. All of those leaked like a sieve.
308 * Fixed some small memory leaks in the client's function
309 silc_client_notify_by_server.
311 * Added functions into silcd/server.c: silc_server_announce_clients,
312 silc_server_announce_channels and silc_server_announce_server.
313 These functions are used by normal and router server to announce
314 to its primary router about clients, channels and servers (when
315 router) that we own. This is done after we've connected to the
318 These functions effectively implements the following packet types:
319 SILC_PACKET_NEW_CHANNEL_LIST, SILC_PACKET_NEW_CHANNEL_USER_LIST
320 and SILC_PACKET_NEW_ID_LIST.
322 * Added new functions into the silcd/packet_receive.[ch]:
323 silc_server_new_id_list, silc_server_new_channel_list and
324 silc_server_new_channel_user_list to handle the incoming
325 NEW_ID_LIST, NEW_CHANNEL_LIST and NEW_CHANNEL_USER_LIST packets.
327 * Added support of changing Channel ID in the function
328 silc_server_replace_id. If the server that announces a channel
329 to the router already exists in the router (with same name but
330 with different Channel ID), router is responsible to send
331 Replace ID packet to the server and force the server to change
332 the Channel ID to the one router has.
334 * Added new notify type SILC_NOTIFY_TYPE_CHANNEL_CHANGE to notify
335 client that the Channel ID has been changed by the router. The
336 normal server sends this to the client. Client must start using
337 the new Channel ID as the channel's ID.
339 Implemented handling of this new type into lib/silcclient/client.c
340 into the function silc_client_notify_by_server.
342 * Added new function silc_idlist_replace_channel_id into the files
343 silcd/idlist.[ch] to replace the Channel ID.
345 Fri Feb 16 14:14:00 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
347 * Call silc_server_command_identify_check always when processing
348 the IDENTIFY command in silcd/command.c
350 Thu Feb 15 20:07:37 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
352 * Added new packet type SILC_PACKET_HEARTBEAT that is used to
353 send keepalive packets. The packet can be sent by clients,
356 Added function silc_socket_set_heartbeat into the file
357 lib/silccore/silcsockconn.[ch] to set the heartbeat timeout.
358 If not set, the heartbeat is not performed. The actual
359 heartbeat is implemented in the low level socket connection
360 library. However, application is responsible of actually
363 Added silc_server_send_heartbeat to send the actual heartbeat
364 packet into silcd/packet_send.[ch]. Server now performs
365 keepalive with all connections.
367 * Added silc_task_get_first function into lib/silcutil/silctask.c
368 to return the timeout task with shortest timeout. There was a bug
369 in task unregistration that caused problems. TODO has been
370 updated to include that task system must be rewritten.
372 * The client library will now resolve the client information when
373 receiving JOIN notify from server for client that we know but
374 have incomplete information.
376 * Rewrote parts of silc_server_remove_from_channels and
377 silc_server_remove_from_one_channel as they did not remove the
378 channel in some circumstances even though they should've.
380 * Encryption problem encountered in server:
382 The LEAVE command used to send the Channel Key packet to the
383 router immediately after generating it. However, the code
384 had earlier sent Remove Channel user packet but not immediately,
385 ie. it was put to queue. The order of packets in the router
386 was that Channel Key packet was first and Remove Channel User
387 packet was second, even though they were encrypted in the
388 reverse order. For this reason, MAC check failed. Now, this
389 is fixed by not sending the Channel Key packet immediately but
390 putting it to queue. However, this is more fundamental problem:
391 packets that are in queue should actually not be encrypted
392 because packets that are sent immediately gets encrypted
393 actually with wrong IV (and thus MAC check fails). So, packets
394 that are in queue should be encrypted when they are sent to
395 the wire and not when they put to the queue.
397 However, the problem is that the current system has not been
398 designed to work that way. Instead, the packet is encrypted
399 as soon as possible and left to the queue. The queue is then
400 just purged into wire. There won't be any fixes for this
401 any time soon. So, the current semantic for packet sending
404 o If you send packet to remote host and do not force the send
405 (the packet will be in queue) then all subsequent packets to the
406 same remote host must also be put to the queue. Only after the
407 queue has been purged is it safe again to force the packet
410 o If you send all packets immediately then it safe to send
411 any of subsequent packets through the queue, however, after
412 the first packet is put to queue then any subsequent packets
413 must also be put to the queue.
415 Follow these rules and everything works fine.
417 Thu Feb 15 14:24:32 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
419 * Added new function silc_server_remove_clients_by_server to
420 remove all client entries from ID list when the server connection
421 is lost. In this case it is also important to invalidate all
422 client entires as they hold the invalid server entry. This
423 fixes fatal bug when server has lost connection and will reconnect
426 Wed Feb 14 16:03:25 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
428 * Made some sanity checks to silc_server_daemonise like to check
429 whether the requested user and group actually exists.
431 * Added sanity check to SKE's silc_ske_responder_finish to check
432 that the public and private key actually is valid.
434 * Invalidate the client's nickname when receiving Replace ID
435 packet and the Client ID is being replaced. This means that the
436 server will query the nickname if someone needs it (client)
439 * Sort the ID Cache in client library when the ID Cache data
440 has changed (needs sorting).
442 * Do not allow for SILC client to create several connections to
443 several servers. The client does not support windows right now
444 and generating multiple connections causes weird behaviour.
446 Irssi-silc client does support windows and can handle several
447 connections without problems, see: www.irssi.org and SILC plugin.
449 * Fixed some places where client was added to the IDList. The
450 rule of thumb is following (in order to get everything right):
451 If the client is directly connected local client then the
452 `connection' argument must be set and `router' argument must be
453 NULL to silc_idlist_add_client function. If the client is not
454 directly connected client then the `router' argument must
455 bet set and the `connection' argument must be NULL to the
456 silc_idlist_add_client function.
458 * The funtion silc_server_packet_send_local_channel actually did
459 not check whether the client was locally connected or not. It
460 does that now. Fixed a bug related to LEAVE command.
462 * Fixed Remove Channel User payload parsing bug in server's
463 silcd/packet_receive.c. Fixed a bug related to LEAVE command.
465 * The server's silc_server_save_channel_key now checks also the
466 global ID list for the channel as it might not be in the local
467 list. Fixed a bug related to LEAVE command.
469 * Is this the end of the [<unknown>] buglet that has been lurking
470 around for a long time? A little for loop fix in server's
471 silc_server_command_whois_parse that is used by both IDENTIFY
472 and WHOIS command. At least, this was a clear bug and a cause
473 of one type of [<unknown>] buglet.
475 * WHOIS and IDENTIFY commands call the function
476 silc_server_command_[whois/identify]_check function even if
477 we are not router server.
479 Tue Feb 13 19:55:59 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
481 * Added --with-gmp configuration option. If set the GMP
482 is always compiled in the SILC source tree. If not set then
483 it is checked whether the system has the GMP3 installed. If
484 it has then the GMP won't be compiled (the system's headers
485 and library is used), if it doesn't have it then the GMP is
486 compiled in the SILC source tree.
488 Mon Feb 12 11:20:32 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
490 * Changed RSA private exponent generation to what PKCS #1
491 suggests. We try to find the smallest possible d by doing
492 modinv(e, lcm(phi)) instead of modinv(e, phi). Note: this is
493 not security fix but optimization.
495 Sun Feb 11 18:19:51 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
497 * Added new config entry [Identity] to fork the server and run
498 it as specific user and group. A patch from Bostik.
500 * Imported Dotconf configuration library into lib/dotconf.
501 This will be used to create the SILC configuration files later.
502 It will appear in the distsribution after this commit.
504 Sat Feb 10 21:13:45 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
506 * A big code auditing weekend happening. Auditing code for
507 obvious mistakes, bugs and errors. Also, removing any code
510 Removed files for being obsolete:
512 o lib/silcutil/silcbuffer.c (the buffer interface is entirely in
513 inline in the file lib/silcutil/silcbuffer.h)
515 o lib/silcutil/silcbufutil.c (the header has inline versions)
517 Changed code to fix possible error conditions:
519 o The buffer formatting routines now check that the destination
520 buffer really has enough space to add the data. This applies for
521 both buffer formatting and unformatting
522 (lib/silcutil/silcbuffmt.[ch]). Also, the entire buffer
523 unformatting was changed to accomodate following rules:
524 XXX_*STRING_ALLOC will allocate space for the data into the pointer
525 sent to the function while XXX_*STRING will not allocate or copy
526 the data into the buffer. Instead it sets the pointer from the
527 buffer into the pointer sent as argument (XXX_*STRING used to
528 require that the pointer must be allocated already). This change
529 makes this whole thing a bit more consistent and more optimized
530 (note that the data returned in the unformatting with XXX_*STRING
531 must not be freed now). The routines return now -1 on error.
533 o Tried to find all code that use buffer_format and buffer_unformat
534 and added return value checking to prevent formatting and
535 especially unformatting errors and possible subsequent fatal
538 o Changed ske->x and ske->KEY to mallocated pointers in
539 lib/silcske/silcske.h. Fixed possible data and memory leak.
541 o Added return value checking to all *_parse* functions. Fixed
542 many memory leaks as well.
544 o Added length argument to silc_id_str2id in lib/silccore/id.[ch]
545 so that buffer overflows would not happen. All code now also
546 checks the return value as it can fail.
548 Mon Feb 5 20:08:30 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
550 * Added reconnection support to server if the normal server looses
551 its connection to the router (for example if router is rebooted).
552 The server performs normal reconnection strategy implemented
553 to the server. Affected file silcd/server.c.
555 Sun Feb 4 13:18:32 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
557 * Added new packet type SILC_PACKET_SET_MODE that is used to
558 distribute the information about changed modes (for clients,
559 channels and clients channel modes) to all routers in the
560 network. Updated the protocol specification accordingly.
562 Added functions into silcd/packet_send.c and
563 silcd/packet_receive.c: silc_server_send_set_mode,
564 silc_server_set_mode.
566 Added new files silcmode.[ch] into lib/silccore that implements
567 the encoding and decoding of Set Mode Payload. Added new type
568 SilcSetModePayload. Moved the definitions of different modes
569 from lib/silccore/silcchannel.h into lib/silccore/silcmode.h.
571 Sat Feb 3 15:44:54 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
573 * Oops, a little mistake in server's connection authentication
574 protocol. The protocol is not ended with FAILURE but with
575 SUCCESS if the authentication is Ok. :) Affected file is
578 * Implemented NICK_CHANGE notify handling in server in the file
579 silcd/packet_receive.c The NICK_CHANGE notify is distributed to
580 the local clients on the channel. After the changing nickname
581 in router environment snhould work and the [<unknown>] nickname
582 should appear no more.
584 The silc_server_replace_id function that receives the Replace ID
585 payload now sends the NICK_CHANGE notify type also in the file
586 silcd/packet_receive.c
588 * Changed WHOIS and IDENTIFY command to support the maximum amount
589 of arguments defined in protocol specs (3328 arguments). This
590 fixed a bug that caused problems when there were more than three
593 Fri Feb 2 11:42:56 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
595 * Added extra parameter, command identifier, to the
596 silc_client_send_command so that explicit command identifier
599 Changed that ID list routines uses specific command identifier
600 when sending WHOIS/IDENTIFY requests to the server so that they
601 can be identified when the reply comes back.
603 Affected files lib/silcclient/command.[ch],
604 lib/silcclient/client.c and lib/silcclient/idlist.[ch].
606 * Added `sender' argument to silc_server_packet_send_to_channel
607 to indicaet the sender who originally sent the packet to us
608 that we are now re-sending. Ignored if NULL. Affected file
609 silcd/packet_send.[ch].
611 * Added some server statistics support in silcd/server_internal.h
612 SilcServerStatistics structure and around the server code. Also
613 send some nice statistics information when client is connecting
616 Thu Feb 1 23:31:21 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
618 * Fixed channel ID decoding in server's JOIN command reply in
619 silcd/command_reply.c
621 * Fixed braodcasting of replace ID payload to not to send it if
622 we are standalone server in silcd/packet_receive.c.
624 * Fixed all channel message sending routines to not to send
625 packets to clients that has router set, since they are routed
626 separately in the same function earlier. Affects file
627 silcd/packet_send.c and all channel packet sending functions.
629 * In USERS reply, res_argv[i] are not allocated, the table
630 is allocated. Thus changed that free the table, not its
633 * In server's whois_check and identify_check if the client is
634 locally connected do not send any WHOIS commands - they are not
637 Thu Feb 1 21:32:27 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
639 * Fixed some minor bugs in client when sending WHOIS command. The
640 arguments was in wrong order.
642 * Removed statis function add_to_channel from server in
643 silcd/command.c that was previously used with the joining but
646 * Tested USERS command in router environment successfully with two
647 routers, two servers and two clients.
649 Thu Feb 1 00:54:26 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
651 * Reorganized the USERS command and command reply in client library
652 in lib/silcclient/command.c and lib/silcclient/command_reply.c.
653 When the command is given by user we register a pending command
654 callback that will reprocess the command after the reply has been
655 received from the server. When reprocessing the packet we then
656 display the information. Thus, the USERS information is displayed
657 now in the command callback instead of in the command reply
658 callback. The processing of the command is same as previously
659 when server has sent the command reply in the JOINing process.
661 * Added to USERS command in silcd/command_reply.c to join the client,
662 we didn't use to know about, to the channel after we've created
663 a client entry for it. Also, for clienet we did know already still
664 check whether it is on the channel or not and add it if not.
666 * Removed silc_server_command_join_notify as the function and its
669 Tue Jan 30 22:39:15 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
671 * Changed the client's pending command handling to the same as the
672 server's pending command handling. It is also now possible to
673 execute command reply functions from other command reply
674 function as the function callbacks for commands and command
675 replies are one and same. The pending commands are not static
676 list anymore, it is mallocated SilcDList in lib/silcclient/client.h
677 in client connection context. Thus, pending commands are server
678 connection specific as it is convenient.
680 Changed the function silc_client_command_pending and
681 silc_client_command_pending_del and added new function
682 silc_client_command_pending_check. Removed the
683 SILC_CLIENT_CMD_REPLY_EXEC, and SILC_CLIENT_PENDING_COMMAND_CHECK
686 * Added cmd_ident, current command identifier, to the client
687 connection context in lib/silcclient/client.h to keep track on
688 command identifiers used in command sending. Client's command reply
689 function handling now supports the mandatory command identifiers.
691 * Added SILC_CLIENT_COMMAND_EXEC_PENDING macros to all command reply
692 funtions in client to fully support pending command callbacks.
694 * NOTE: the name_list in USERS (old NAMES) command is NOT sent anymore
695 as one of the arguments to the application in the command reply
698 * NOTE: The FORWARDED flag is depracated. It used to be depracated
699 before first releasing SILC but came back. Now it is removed again
700 and should come back nomore. The FORWARDED flag was used only
701 by the JOINing procedure by forwarding the command packet to router.
702 Now, the JOINing procedure has been changed to more generic (due
703 to various router environment issues) and FORWARDED is not needed
704 anymore for anything. The protocol specification is yet to be
707 Now, removed silc_server_packet_forward from server and the flag
708 SILC_PACKET_FORWARDED from lib/silccore/silcpacket.h.
710 Tue Jan 30 00:05:05 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
712 * Renamed NAMES command to USERS command. The NAMES was named that
713 due to historical reasons. Now it is renamed. Also, rewrote
714 parts of the USERS command. The nickname list is not sent anymore
715 by the server. Only Client ID and mode lists are sent in the USERS
716 command. Changed this also to the protocol specification.
718 The client now resolves the names and stuff after it receives
719 the USERS list from the server when joining to the channel.
721 * WHOIS and IDENTIFY commands has been changed to support multiple
722 Client ID's per command. One can now search for multiple users
723 in the network by sending only one WHOIS or IDENTIFY command.
724 Changed the code and the protocol specifications.
726 * Removed silc_server_command_identify_parse and changed that IDENTIFY
727 uses silc_server_command_whois_parse to parse the request. */
729 * If normal server, do not parse the WHOIS and IDENTIFY requests
730 before sending it to the router. Saves some time.
732 Sun Jan 28 16:19:49 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
734 * Fixed JOIN command on client library. Wrong number of arguments
735 used to crash the client.
737 * Added silc_server_channel_has_global function to check whether
738 channel has global users or not.
740 * Added silc_server_channel_has_local function to check whether channel
741 has locally connected clients on the channel.
743 * The silc_server_remove_from_one_channel now checks whether the
744 channel has global users or not after given client was removed from
745 the channel. It also checks whether the channel has local clients
746 on the channel anymore. If it does not have then the channel entry
747 is removed as it is not needed anymore.
749 * The silc_server_notify now checks on JOIN notify whether the joining
750 client is one of locally connected or global. If it is global then
751 the channel has now global users on the channel and that is marked
752 to the channel entry. Also, it now saves the global client to
753 global list who is joining and JOINs it to the channel. This is
754 for normal server, that is.
756 Changed silc_server_send_notify_on_channel,
757 silc_server_packet_relay_to_channel and
758 silc_server_packet_send_to_channel check if we are normal server
759 and client has router set (ie. global client) do not send the
760 message to that client, as it is already routed to our router.
762 * Implemented LEAVE notify type handling in silc_server_notify
765 * Tested LEAVE command in router environment successfully. Tested
766 with two routers, two servers and two clients.
770 * idlist_find_xxx_by_id routines now dumps the ID on the debug mode.
772 * Implemented SIGNOFF notify type handling in silc_server_notify
775 * silc_server_remove_id now removes the client entry from all channels
776 it has joined and thusly sends SIGNOFF notify type.
778 * Rewrote the NAMES list generation in server by removing two excess
779 loops. The lists are created now inside one loop.
781 Sat Jan 27 22:34:56 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
783 * silc_server_remove_channel_user checks now also global list
784 for channel and client.
786 * silc_server_new_channel_user checks now both local and global
787 list for channel and client. Fixed a bug in client id decoding.
788 Used to decode wrong buffer.
790 * silc_server_channel_message checks now both local and global
791 list for channel entry.
793 * Tested channel joining (hence JOIN) in router environment
794 successfully. Tested with two routers, two servers and two
797 * Tested channel message sending in router environment successfully.
799 Thu Jan 11 03:22:57 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
801 * Added silc_server_save_channel_key into server.[ch] to save the
802 received channel key in Channel Key payload processing. It is
803 also used in JOIN command reply handling.
805 Equivalent function silc_client_save_channel_key added into
806 client.[ch] into client library.
808 * Changed JOIN command reply to send information whether the channel
809 was created or not (is existing already) and the channel key
810 payload. Changed protocol specs accordingly.
812 * Fixed bugs in WHOIS and IDENTIFY command reply sending when
813 the request was sent by ID and not by nickname. Crashed on
816 Sat Dec 23 21:55:07 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
818 * Fixed a bug in Client library. IDENTIFY and WHOIS reply functions
819 now correctly save the received data.
821 * silc_server_free_sock_user_data now notifies routers in the
822 network about entities leaving the network.
824 At the same time implemented functions silc_server_remove_id
825 and silc_server_send_remove_id to receive and send REMOVE_ID
826 packets. The packet is used to notify routers in the network
827 about leaving entities. The ID removed will become invalid in
830 * Added function silc_idlist_del_server into server. Removes and
831 free's server entry from ID list.
833 * silc_server_private_message function now checks, if we are router,
834 that the destination ID really is valid ID, naturally.
836 * In router when NEW_ID packet is received (for new client) the
837 hash of the Client ID is saved in the ID Cache but the
838 client->nickname is set to NULL, instead of putting the hash
841 IDENTIFY command now also checks that client->nickname must be
842 valid. If it is not if will request the data from the server who
843 owns the client. Added new function
844 silc_server_command_identify_check.
846 * Added silc_command_set_command into lib/silccore/silcommand.[ch]
847 to set the command to already allocated Command Payload.
849 * Tested private message sending in router environment with two
850 routers, two servers and two clients. Fixed minor bugs and now
853 * Fixed segfault from client's NAMES command. Used to crash if
856 * Forwarded packets must not be routed even if it is not destined
857 to the receiver. Changed server code comply with this.
859 Sun Dec 17 14:40:08 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
861 * Added `require_reverse_mapping' boolean value to ServerParams
862 structure. If TRUE (not default) the server will require that
863 the connecting host has fully qualified domain name.
865 If the reverse mapping is not required and hostname could not be
866 found the IP address is used as hostname.
868 Sat Dec 16 17:39:54 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
870 * Implemented version string checking to both client and server.
871 The check is incomplete currently due to the abnormal version
872 strings used in development version of SILC.
874 * Changed all command functions in server to use the new
877 Fri Dec 15 15:55:12 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
879 * Changed char *data to unsigned char *data in ID Cache system to
880 support binary data as ID Cache data. Changed code to support
881 binary data in lib/silccore/idcache.c.
883 * Renamed silc_server_packet_relay_command_reply to
884 silc_server_command_reply as it is normal packet receiving
885 function. Rewrote the function to accept command replys for
886 servers and not only for clients.
888 * Mark remote router always as registered server if we are connecting
889 to it. Otherwise, commands sent by the router to us are ignored.
891 * All ID List find routines now returns the ID Cache Entry pointer
892 as well if requested.
894 * WHOIS command works now in router environment, tested with two
895 routers, two servers and two clients.
897 * Cleaned up and rewrote IDENTIFY command. IDENTIFY should work now
898 in router environment (as it is almost equivalent to WHOIS) but
899 hasn't been tested thoroughly. Added new functions:
901 silc_server_command_identify_parse
902 silc_server_command_identify_send_reply
903 silc_server_command_identify_from_client
904 silc_server_command_identify_from_server
906 * Disabled route cache adding because adding two different ID's with
907 same IP replaces the old cache entry thus giving wrong route.
908 The entry->router->connection is always the fastest route anyway
909 so route cache may not be needed. Of course, new routes maybe
910 established after receiving the ID when the entry->router->connection
911 might not be anymore the most optimal.
913 Thu Dec 14 15:55:35 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
915 * Add route cache for received ID for fast routing.
917 * Added silc_server_packet_route to route received packet on router
918 that is not destined to us.
920 * Renamed silc_server_get_route to silc_server_route_get.
922 * Added id_string and id_string_len fields into SilcServer to
923 include encoded ServerID for fast comparing without excess
924 encoding of the ID's.
926 * Cleaned up WHOIS command on server side. Added following static
929 silc_server_command_whois_parse
930 silc_server_command_whois_check
931 silc_server_command_whois_send_reply
932 silc_server_command_whois_from_client
933 silc_server_command_whois_from_server
935 * Added macro SILC_SERVER_COMMAND_CHECK_ARGC to check mandatory
936 arguments in command replies. All command functions should be
937 updated to use this macro.
939 Sun Dec 10 23:52:00 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
941 * Minor typo fixes on command reply handling on server.
943 Tue Nov 28 11:05:39 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
945 * Added silc_server_command_add_to_channel internal routine to add
946 the client to the channel after router has created the channel and
947 sent command reply to the server.
949 * Added generic silc_server_send_command to send any command from
952 * Use static buffer with ID rendering instead of duplicating data.
954 Mon Nov 27 21:39:40 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
956 * Fixed a channel user mode bug when joining to a channel server gave
957 everybody channel founder rights, oops.
959 * We mark ourselves as the router of the incoming server connection
960 if we are router ourselves. This way we can check in some packet
961 sending functions whether it is locally connected server. For
962 incoming router connections we put NULL.
964 * For router sending packets locally means now always sending the
965 packet cell wide; to local clients and local servers. For normal
966 server sending packet locally means sending it to only local
969 * Fixed the JOIN command to really work in router environment. If the
970 channel is created it is always created by the router. Router is
971 also responsible of making the initial joining to the channel,
972 sending JOIN notify to the sending server and distributing
973 NEW_CHANNEL and NEW_CHANNEL_USER packets. Hence, if the channel
974 does not exist server doesn't do anything else but forward the
975 command to the router which performs everything.
977 * Added silc_server_send_channel_key function to send the Channel Key
980 * Added silc_server_create_channel_key to create new channel key. The
981 channel key is now re-generated everytime someone joins or leaves
982 a channel, as protocol dictates. Note: channel->key_len is the
985 Wed Nov 22 22:14:19 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
987 * Splitted server.[ch] finally. Created now packet_send.[ch] and
988 packet_receive.[ch] to separate packet sending and receiving
989 routines. The server.[ch] now includes everything else including
990 actual packet processing (writing and reading data) and other
993 Renamed silc_server_private_message_send_internal to
994 silc_server_send_private_message. The routine is still though
995 used only to relay private messages as server does not send
996 private messages itself.
998 Renamed silc_server_new_channel to silc_server_create_new_channel
999 and added new function sicl_server_new_channel that handles the
1000 incoming New Channel packet. Added also new sending function
1001 silc_server_send_new_channel to send New Channel Payload.
1003 * Added new function silc_server_notify to process incoming notify
1004 packet to the server/router. Server may then relay the notify
1005 to clients if needed.
1007 * Added new function silc_server_new_channel_user to process incoming
1008 New Channel User packet. Router will redistribute the packet and
1009 send JOIN notify to its local clients and locally connected servers
1010 if needed. Normal server will send JOIN notify to its local client
1011 on same channel when received this packet. Added also corresponding
1012 sending function silc_server_send_new_channel_user to sent the
1015 * Added boolean route argument to send_notif_to_channel and
1016 packet_send_to_channel functions to attempt to route the packet
1017 if it is TRUE and send only locally if it is FALSE.
1019 Tue Nov 21 19:49:31 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1021 * silc_server_replace_id now broadcasts the received replace ID
1022 packet if it is not broadcast packet already. The router must
1023 broadcast to inform other routers about changed ID.
1025 * Added backpointer to server's router into SilcServer context in
1026 silcd/server_internal.h.
1028 * Fixed silc_server_packet_broadcast to send correct broadcast
1031 * The channel key is now distributed to the local client as soon
1032 as it is received from the router (in router environment) so that
1033 no other packet may be sent for the channel until client has
1036 * silc_server_remove_channel_user now broadcasts the received
1037 Remove Channel User packet if it is not broadcast packet already.
1038 The router must broadcast to inform other routers about removed
1041 * Added users field into SilcPacketContext that is a reference count
1042 of the context. One can increase the reference count by calling
1043 silc_packet_context_dup which is now changed to just increase the
1044 reference count instead of duplicating the data. The reference
1045 count is decresed by calling silc_packet_context_free that will
1046 free the data after the reference count hits zero.
1048 For now on the packet context and everything allocated into it
1049 (including the raw packet from network) must be freed by calling
1050 the new silc_packet_context_free function. Added also new function
1051 silc_packet_context_alloc that must be used now to allocate the
1052 context. This also means that if a routine is asynchronous from
1053 silc_[client/server]_packet_parse_type the packet context must
1054 be duplicated by calling silc_packet_context_dup. Otherwise it
1055 gets free'd after silc_[client/server]_packet_parse_type returns.
1056 Also, one must remember that if packet is duplicated then its
1057 reference count must be decresed by calling the free function as
1058 many times as it was duplicated.
1060 * Changed SilcBuffer field from protocol contexts to SilcPacketContext
1061 from both client and server.
1063 Mon Nov 20 23:47:03 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1065 * Made joining to a channel working in router environment.
1067 * Cleaned up JOIN command on server side and create function
1068 silc_server_command_join_channel internal routine to make the
1071 Thu Nov 9 21:12:39 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1073 * Changed silc_command_pending list to SilcDList. Also, added
1074 `ident' field to SilcServerCommandPending structure to identify
1075 the reply and to call correct callback.
1077 Added silc_server_command_pending_check function to replace the
1078 corresnponding macro. The silc_command_pending list is not
1081 * Added silc_command_set_ident into lib/silccore/silccommand.[ch]
1082 to set identifier to previously allocated Command Payload. It
1083 is used to set identifier for command when resending Command
1086 * Added silc_command_payload_encode_payload to encode Command
1087 Payload buffer from SilcCommandPayload structure.
1089 * Added silc_argument_payload_encode_payload to encode Argument
1090 payload buffer from SilcArgumentPayload structure.
1092 Wed Nov 8 21:03:28 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1094 * Changed WHOIS command to support router connection on server side.
1095 The whois request is always sent to router unless the server is
1096 standalone server. After server has received the reply from the
1097 router will it send the reply to the client.
1099 * Added silc_server_packet_broadcast into silcd/server.[ch] to
1100 broadcast received broadcast packet. The function is used only
1101 by router. The broadcast packet is always sent to the router's
1104 * Added silc_id_render function in lib/silcutil/silcutil.[ch] to
1105 render given ID to printable string, for log files for example.
1107 Tue Nov 7 22:14:19 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1109 * Made basic router to router connections working. At least they
1110 can now connect to each other but nothing really works the way
1111 they are supposed - yet.
1113 * Added new initiator token to RouterConnection configuration
1114 file in silcd/serverconfig.[ch]. It is used to tell whether we
1115 are the initiator to the remote router or whether we'll expect
1116 the other end to connect.
1118 * Moved registering of listener task to silc_server_init, hence
1119 the server starts listenning as soon as it is run, even if it
1120 does not have connections to other routers. Let's see how well
1123 * Changed default connection retry timeouts for more suitable in
1126 * Removed cipher and such arguments from silc_idlist_add_client
1127 and silc_idlist_add_server prototypes from silcd/idlist.[ch].
1128 Added new function silc_idlist_add_data to add the keys and stuff
1131 * Added SilcIDListData structure and added it to SilcClientEntry
1132 and SilcServerEntry as their first field in the structure. This
1133 way we can explicitly cast the ID entries to the SilcIDListData
1134 structure and get common data for the entries. In past, we had
1135 to first check what type of connection it is and then cast it to
1136 correct ID entry type. Now, we can directly cast the opaque
1137 pointer to the SilcIDListData (no matter what ID entry it actually
1138 is) and get the data needed.
1140 Mon Nov 6 21:56:12 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1142 * Wow, found a bug in scheduler. The scheduler uninitialized itself
1143 in some circumstances even if threre were timeout tasks, though not
1144 IO tasks, but tasks anyway. Now fixed.
1146 * Defined SilcServerConnection structure to hold connection specific
1147 stuff about directly connected servers and routers. The definition
1148 is currently in silcd/server_internal.h. I thought about having
1149 a bit more important role fro this struct but for now it is used
1150 only when connecting to other server (or router actually).
1152 * Added connecting retry support in server when connecting to
1153 router(s). The retry feature implement exponential backoff
1154 algorithm. Also, added SilcServerParams structure to hold default
1155 parameters for server. For now, it include these retry settings
1156 and are hard coded. After server is moded to be as Silc Server
1157 Library this structure will be more important.
1159 Sun Nov 5 22:28:44 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1161 * Changed client librarys channel->clients table to SilcList and
1162 changed code accordingly.
1164 Thu Nov 2 16:28:01 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1166 * Changed client's channel table to SilcList and changed code
1167 accordingly. Also changed SilcChannelClientEntry to include back-
1168 pointer to the channel so that client entry can use that structure
1169 as list as well and we have fast cross-reference to the channel.
1170 This change dramatically decreased the complexity of channel
1171 handling with client entry and vice versa (removed one extra
1172 loop when searching for channel entry from many functions).
1174 * Changed server->sim from table to SilcDList and changed code
1177 * NAMES command can now be used from user interface. It will show
1178 the user list on the channel, neatly.
1180 * Added realname pointer to SilcClientEntry in lib/silcclient/idlist.h.
1181 Code now saves realname of the user if it becomes available.
1183 * Renamed configure.in to configure.in.pre and made ./prepare
1184 script to automatically add correct version string to
1185 configure.in which it creates from configure.in.pre.
1187 Wed Nov 1 17:21:26 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1189 * NAMES command reply now shows users mode with the nickname when
1192 * Moved silc_client_ch[u]mode[_char] functions from
1193 silc/clientutil.[ch] to lib/silcclient/client.[ch]. Though, that
1194 place sucks, they are utility functions and should be in some
1197 * Fixed some unsigned int's to unsigned short's. Patch by cras.
1199 * Fixed contrib/getopt*.[ch] to not require config.h. Patch by
1202 Tue Oct 31 20:10:37 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1206 * Added TRQ (efficient deque and list library) into lib/trq. This is
1207 a very good list library that is currently used in the SILC. Defined
1208 SilcList API over the library because I didn't like the API very
1209 much. See lib/trq/silclist.h for the API and examples of how to
1210 use the API. Fixed various places in the code to use the new
1211 SilcList API. The SilcList is meant for lists that has a structure
1212 already defined as a list. It is not suitable to add just some
1213 context to the list (in TRQ, the context is the list actually).
1215 So, I defined SilcDList that can be used for the purpose where
1216 predefined list structure does not exit. This can be used as
1217 such list. Now some context just can be added to the SilcDList.
1218 Currently this list is not used in the SILC just yet, though there
1219 are a lot places where this can replace dynamically allocated
1220 tables and I will fix these places, later, to use SilcDList.
1221 See lib/trq/silcdlist.h for SilcDList (they are all inline functions,
1222 and use TRQ internally).
1224 Also fixed some annoying warning messages that the original TRQ
1225 code generated. Also minor changes to TRQ's Makefile.in.
1227 * Added support for querying by Client ID to both WHOIS and
1228 IDENTIFY commands into server, as required by the protocol.
1230 * Removed method function pointers from SilcBuffer structure. They
1231 weren't used to anything and just increased the context size for
1232 no good reason. This change also made silc_buffer_alloc and
1233 silc_buffer_free functions inline functions.
1235 * Disabled command flooding detection support until it's fixed so
1236 that it accepts commands in but does not execute them more than once
1239 * Added silc_net_localhost(), to return local hostname, into
1240 lib/silcutil/silcnet.[ch]. Also added client->hostname pointer
1241 that must be initialized before calling silc_client_init.
1243 * Added new function: silc_server_send_notify_on_channels to send
1244 notify messages to all channels client has joined. It is assured
1245 that the message is sent only once per client.
1247 * Moved silc_log_format (from lib/silcutil/silclog.[ch] into
1248 lib/silcutil/silcutil.[ch] as silc_format function. The new
1249 function is generic and is used by server as well, not only by
1250 the logging routines.
1252 * Added new SKE status type: SILC_SKE_STATUS_BAD_VERSION to indicate
1253 the provided version string was not acceptable. Added new function:
1254 silc_ske_check_version into lib/silcske/silcske.h. The function
1255 must be implemented by the application (client or server) and it
1256 does not reside in the SKE library. The function checks the version
1257 string remote end sent.
1259 * Added back pointers (to opaque context and to SilcSocketConnection)
1260 into SilcPacketContext structure into lib/silccore/silcpacket.h.
1262 * Added silc_packet_context_dup into lib/silccore/silcpacket.[ch] to
1263 duplicate packet context structure.
1265 * Changed `notify' client operation to send same arguments as client
1266 receives from server except for ID's. ID's are mapped to correct
1267 ID entry and that is returned. Also, if channel entry is not sent
1268 by server but the notify is for channel the channel entry is sent
1269 to application (otherwise application doesn't know that it is for
1270 channel (library gets it from packet's Destination ID)).
1272 * Added silc_client_remove_from_channels into client library to
1273 remove a client from all channels it has joined to. Used when
1274 received SIGNOFF notify from server. Added also new function
1275 silc_client_replace_from_channels to replace old ID entry with
1276 new ID entry on all channels. Used when received NICK_CHANGE
1279 * Fixed ID Cache list handling in silc_idlist_get_client in
1280 lib/silcclient/idlist.c. Also, added silc_idlist_get_client_by_id
1281 to get (or query) client by ID.
1283 * Updated TODO list.
1285 * Added connection authentication status message defined by the
1286 protocol: SILC_CONN_AUTH_OK and SILC_CONN_AUTH_FAILED and added the
1287 support for these into the code in client and server side.
1289 * Added generic function silc_client_send_command to send any command
1290 with variable argument list. Application should use this function
1291 to send commands if the command functions provided by the library
1292 does not suite for the application's user interface needs.
1294 * Added new `failure' client operation. Application is notified about
1295 received failure packet if client is executing a protocol. In this
1296 case the protocol's execution has failed.
1298 * Added SKE's end notify to send the SKE_SUCCESS notify message that
1299 is required by the protocol.
1301 * Added SILC_PROTOCOL_STATE_FAILURE to indicate received failure
1302 packet from remote. SILC_PROTOCOL_STATE_ERROR indicates local
1305 * Added status flag to SilcSKE object to indicate realtime status
1306 of the SKE protocol.
1308 * Application receives now exactly same command reply arguments as
1309 the library receives from server. However, if ID is received the
1310 corresponding ID entry is returned to the application (eg. Client
1311 ID is mapped to correct SilcClientEntry entry and that is returned).
1312 Changed command_reply client operation due to this change.
1314 * Changed all ID's in commands and in command replys as ID Payloads.
1315 Change affected both client and server side codes.
1317 All ID's sent in SILC network (with execption of ID's in SILC
1318 Packet header) are sent in ID Payload to support variable length
1321 * Server now notifies nick changes and notifies all clients on
1322 the channels about the new nickname (about the new Client ID,
1325 * Implemented CMODE command to change channel modes. Supports all
1326 channel modes defined by the protocol specs except ban and invite
1327 lists. (Also, private channel key mode is supported but support for
1328 setting private channel key in client is missing, thus, this mode
1329 has no effect on client side (except that server requires that the
1330 client uses private channel key and normal channel traffic does not
1333 Also, invite mode works per se, but INVITE command does not work
1334 yet correctly, so you can set channel as invite only channel but
1335 inviting clients to the channel does not work (it is yet to be
1336 thought what's the best way to do it).
1338 * Added new command SILC_COMMAND_CUMODE to change user mode on the
1339 channel. Defined user modes: CHANNEL_FOUNDER and CHANNEL_OPERATOR.
1340 Implemented CUMODE command to change user's mode on the channel.
1341 Supports all modes defined by the protocol specs.
1343 * Added NAMES command reply to return users modes on the channel.
1345 * Removed unnecessary and slow ciphers from lib/silccrypt.
1347 * Set SO_KEEPALIVE option to connection sockets by default.
1349 * Added new command reply status: SILC_STATUS_USER_NOT_ON_CHANNEL.
1351 * Added notify types: MOTD, CMODE_CHANGE and CUMODE_CHANGE. Also,
1352 redefined the Notify Payload into protocol specs.
1354 * Added silc_id_payload_parse_id to get ID directly from raw
1357 Mon Oct 9 20:57:02 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1359 * Changed SILC_COMMAND_IDENTIFY in protocol specification to
1360 accept searching by Client ID as well.
1362 * Added support for LEAVE and SIGNOFF notify types in client library.
1364 * Added silc_id_payload_parse_data into lib/silccore/silcpayload.[ch]
1365 to parse ID Payload from raw data.
1367 Sun Oct 8 19:33:08 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1369 * Added flags parameter into silc_ske_assemble_security_properties
1370 function in lib/silcske/silcske.[ch].
1372 * Changed notify client operation to fit better for notify messages
1373 sent by server. The notify payload received from server is now
1374 passed to the application (after parsing it to SilcNotifyPayload).
1375 It is application's responsibility to retrieve the arguments
1376 from the payload and show the message the way it wants. The message
1377 sent by server is implementation specific.
1379 * Changed public keys to comply with the protocol specification.
1380 Old public keys are not supported anymore and are not compatible.
1382 * Removed nickname from Channel Payload as the latest draft removed
1383 it. The client must resolve the nickname from the NAMES command
1384 reply received when it joined the channel.
1386 Also, changed all channel_xxxx_payload to channel_payload_xxxx.
1388 Sat Oct 7 21:55:01 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1390 * Fixed some errors in protocol specification drafts.
1392 * Created lib/silccore/silcnotify.c to implement Notify Payload
1393 encoding and decoding, lib/silccore/silcpayload.[ch] to implement
1394 generic payloads described by protocol specifications. The file
1395 includes implementations for ID Payload and Argument Payload.
1397 * Changed Command Payload implementation to use the new Argument
1398 Payload. Changed command_xxxx_payload to command_payload_xxxx
1399 to comply with SILC coding conventions.
1401 * Added suppport for Argument Payload handling in Notify Payload
1402 implementation as protocol requires it. Added the new support
1403 into server and client lib as well.
1405 Thu Oct 5 21:16:28 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1407 * Added support for multiple nicknames on same channel. [n] is
1408 added locally to the nickname if there are more than one same
1409 nicknames on the channel.
1411 * Server now sends all nicknames that matched WHOIS request.
1412 Client also shows the list received from server.
1414 * Added TOPIC command to client side. User can now set and show
1415 current topic on channel.
1417 * Added MOTD command to client and server. Also, server sends the
1418 motd when client connects to the server.
1420 * Changed version strings to comply ISO 8601.
1422 Wed Oct 4 23:29:06 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1424 * Fixed protocol error handling in client library. It should now
1425 cope even if the SKE fails for some reason.
1427 * Made new protocol specification drafts for submitting to IETF.
1429 * Implemented TOPIC command to server in silcd/command.c.
1431 * Added two new notify types into lib/silccore/silcnotify.h:
1432 SILC_NOTIFY_TYPE_NICK_CHANGE and SILC_NOTIFY_TYPE_TOPIC_SET to
1433 notify nickname change and topic setting/change on a channel.
1435 * API change of command_reply operation in client library. The
1436 application gets now the status type received from server as well.
1438 Sat Sep 30 16:57:42 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1440 * Removed the function just added to lib/silcutil/silcschedule.[ch].
1442 * Cras fixed and optimized the packet handling even further and
1443 it should work now. Minor change to the prototype of function
1444 silc_packet_receive_process in lib/silccore/silcpacket.[ch].
1446 Sat Sep 30 08:48:47 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1448 * Added new function into lib/silcutil/silcschedule.[ch]:
1449 silc_schedule_with_fd to select() a specified fd. The function
1450 returns after timeout expires or data arrives or goes. The
1451 function is used by packet routines to wait that all data is
1452 received from network.
1454 * Fixed data reading from network in lib/silccore/silcpacket.c.
1455 The code now assures that all data is read from the fd and then
1456 continues packet processing. This was a bug fix since the code
1457 used to drop some data in some circumstances.
1459 * Added new function into lib/silcclient/client.[ch]:
1460 silc_client_start_key_exchange to start key exchange after
1461 connection has been established to server. The code internally
1462 now uses this funtion but its main purpose was to provide it
1463 for applications that perform their own connecting. After
1464 application has created a connection it merely calls this
1465 function to start the key exchange between client and server.
1466 The library takes care of everything else after that.
1468 Updated also lib/silcclient/README to explain the usage of
1471 * Do not send to application information that connection has
1472 been established. Application gets notified it by connect
1475 Thu Sep 28 23:40:19 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1477 * Applied cras's patch to add silc_schedule_one function. The
1478 function runs scheduler once and returns.
1480 * Fixed the scheduler after cras messed it up. The timeout
1481 handling works now as it's supposed to work.
1483 * Added into lib/silccore/ silcnotify.h to include notify
1484 message types support. Changed silc_server_send_notify*
1485 functions, in server.[ch], to support those new notify types.
1486 Added the support for the notify types into client library,
1487 as well. Added new notify client operation into ops.h in
1490 * Changed silc_server_packet_send_to_channel to send normal
1491 packets instead of just channel message packets. The function
1492 is now used to send the notify packets to channels. It is not
1493 used to send channel message packets anymore, as server never
1496 * Added explicit casting into lib/silcutil/silcbuffmt.c to few
1497 va_arg()s as it seems to require it nowadays. I guess, if SILC
1498 is compiled with older va_arg() the new code should work anyway.
1500 Wed Sep 13 18:10:14 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1502 * Splitted core library. Core library (lib/silccore) includes
1503 now only SILC protocol specific core (and common) components.
1504 Created new utility library (lib/silcutil) that includes more
1505 generic purpose stuff. The stuff for util library was taken
1506 from the old core library. This was minor and easy split.
1508 * Created SILC Client Library (lib/silcclient) that includes
1509 implementation of the SILC client without user interface. This
1510 was major move from silc/ directory. The code has been changed
1511 so that it is transparent towards the user interface. The
1512 silc/ directory includes now the same user interface as before
1513 and it uses the new client library. Read lib/silcclient/README.
1514 Basicly, the client library performs everything else related
1515 to SILC except user interface handling. Also, configuration
1516 files are considered to be part of user interface and library
1517 does not handle them.
1519 This change also changed a lot of structures, function naming etc.
1520 Most important change was that SilcClientWindow object was
1521 renamed to SilcClientConnection in the client library. Created
1522 also new file lib/silcclient/ops.h. Also added new files
1523 silc/local_command.[ch] and silc/client_ops.[ch].
1525 All these changes were made to make it easier for user interface
1526 designers to create what ever user interface for the SILC client
1529 It is also expected that the server will be moved to lib
1530 directory as well and SILC Server Library will be created;
1531 sometimes in the future.
1533 * Removed Local commands from lib/silccore/silccommand.h as
1534 they are application specific and new client library does not
1535 handle any of those anymore.
1537 * Several functions moved to lib/silcutil/silcutilc.[ch] from
1538 old client implementation in silc/.
1540 * Added support for callback functions in SILC_LOG_* macros.
1541 Application can now set its own callbacks that will be called
1542 instead of using the default functions that will always print
1543 the debug messages to stderr (or stdout). Also, debugging can
1544 now be disabled by setting silc_debug to FALSE and re-enabled by
1545 setting it to TRUE. Note, that logging will still work even
1546 if debugging is disabled.
1548 New functions in lib/silcutil/silclog.[ch]: silc_log_set_callbacks,
1549 silc_log_reset_callbacks, silc_log_set_debug_callbacks and
1550 silc_log_reset_debug_callbacks.
1552 * To enable debugging in silc client one must give now -d
1553 option on command line.
1555 * Changed silc_schedule_init to automatically allocate task queues
1556 if they are not allocated before calling it.
1558 Thu Sep 7 10:49:33 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1560 * Added GMP 3.1 into math library.
1562 Sun Aug 20 21:27:26 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1564 * Added SILC_PACKET_REMOVE_CHANNEL_USER to remove a client from
1565 a channel in SILC network. The packet is used by servers and
1566 routers to notify other routers that user has left a channel.
1567 This little feature was missing until now. Added the feature
1568 to protocol specification as well.
1570 Added functions: silc_server_send_remove_channel_user and
1571 silc_server_remove_channel_user into server.[ch].
1573 * Added SILC_PACKET_REKEY and SILC_PACKET_REKEY_DONE into
1574 lib/silccore/silcpacket.h. However, they are not implemented
1577 Sat Aug 19 23:04:16 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1579 * Fixed joining to a channel and sending channel messages
1580 between server and router. The channel message sending should
1581 now work inside a cell.
1583 Tue Jul 25 20:46:13 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1585 * Fixed the private message sending between server and router.
1586 The private message sending should now work inside a cell.
1588 * Added silc_server_replace_id into server.[ch] to replace
1589 existing ID in the SILC network.
1591 * Added silc_idlist_find_server_by, silc_idlist_replace_client_id
1592 and silc_idlist_replace_server_id into idlist.[ch] in server.
1594 Mon Jul 24 18:33:31 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1596 * Fixed the server to server connections. Server can again now
1597 connect to router. Router to router connections probably does
1600 Thu Jul 20 13:15:01 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1602 * Added dynamic protocol registering support. Now protocols can
1603 registered and unregistered on the fly. Patch by cras.
1605 Wed Jul 19 19:08:46 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1607 * Added lib/contrib directory to hold routines that some platforms
1608 don't have but are needed by SILC.
1610 * Added getopt.c, getopt1.c and getopt.h from GNU C library
1611 into lin/contrib to provide getopt() and getopt_long() for
1612 those who don't have it.
1614 Tue Jul 18 20:41:20 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1616 * Added AWAY command to client. When away message is set and
1617 client receives a private message packet the client automatically
1618 replies to the sender with the away message.
1620 * Fixed a bug in lib/silcmath/mpbin.c: silc_mp_mp2bin. This
1621 bug seemed to be the cause of recent problems when compiling
1624 * Added version detection support to SKE protocol specification
1625 and added the new changes to the SKE implementation as well.
1626 There were other minor changes in the SKE protocol as well.
1628 Many changes in lib/silcske/silcske.[ch] and in
1629 lib/silcske/payload.[ch].
1631 * Added ^U functionality, clear input line. Patch from cras.
1633 Mon Jul 17 23:33:26 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1635 * Mainly small bugfixes on core library. Fixed some debugging
1636 logging and buffer overflow in silclog.c.
1638 * Updated config.sub and config.guess on the distribution tree.
1640 Sat Jul 15 15:33:48 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1642 * Added command lagging support in server. Client may execute
1643 commands now only once in two seconds.
1645 Thu Jul 13 22:10:21 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1647 * Optimized packet reception. MAC computation and checking is now
1648 also more optimized. A lot previously duplicated code is now
1649 used as generic by both client and server.
1651 * Fixed key pair generation in clientutil.c
1653 Wed Jul 12 18:28:07 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1655 * Added into lib/silccore/silcbufutil.[ch] new function;
1656 silc_buffer_realloc.
1658 * Moved generic packet sending/encryption functions to
1659 lib/silccore/silcpacket.[ch] from client and server. Some
1660 rewriting of the functions.
1662 * Moved all generic packet reception/decryption functions to
1663 lib/silccore/silcpacket.[ch] from client and server. The
1664 packet processing is now much cleaner in both client and server.
1665 These were major changes in both client and server.
1667 * Created many common functions in server to do packet sending.
1668 Previously code were duplicated a lot, this has been removed
1671 Tue Jul 11 20:27:26 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1673 * Rewrote major parts of the ID cache system. Don't know
1674 whether it is better now or not but at least the API is more
1677 * Major rewrite on ID cache stuff on client because of the ID
1678 cache API changes. Added idlist.c to client.
1680 * Also major rewrite on ID cache stuff on server as well.
1681 Major rewrite of idlist.[ch]. SilcXXXList's are now named
1682 SilcXXXEntry's. We won't keep anymore idlist specific pointers
1683 in hand, instead they are all put into the ID cache system now.
1684 All server_idlist_* routines uses ID cache now instead of
1685 traversing its own lists (those lists does not exist anymore).
1686 SilcIDList though still exists. Also, SilcXXXEntry's are
1689 Sun Jul 9 15:19:24 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1691 * Finally made the SKE implementation compliant to the protocol
1692 specification. All mp integers are now binary encoded as
1693 opposed being HEX encoded.
1695 * Added lib/silcmath/mpbin.[ch]. Encoding mp intergers to and
1698 * Added into lib/silccore/silcutil.[ch] PEM encoding/decoding
1699 functions: silc_[encode/decode]_pem. Also added function
1700 silc_encode_pem_file to PEM encode with newlines ('\n') for
1703 * SILC public keys are now encoded either PEM or binary. Same
1704 option is for private keys as well. By default private keys
1705 are binary encoded and public keys PEM encoded. Silly HEX
1706 encoding were removed.
1708 * Added into lib/silccrypt/silchash.[ch] silc_hash_fingerprint
1709 function to create fingerprints.
1711 * Fixed a bug in SHA1; does not change the original data anymore.
1713 * Partly implemented INFO command on client and server side.
1714 Fixed CLEAR command. Changes to SERVER command; show current
1715 server(s) when giving command without arguments. Added
1716 VERSION command to client.
1718 * Added check to server that unregistered connections cannot
1719 execute commands (unless it is specificly allowed).
1721 Thu Jul 6 18:12:24 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1723 * Fixed screen refresh.
1725 * Fixed channel joining bug from client. On some circumstances
1726 client tried to join to a channel it had already joined.
1728 * Added public key verification process into client's protocol.c.
1729 The client now verifies the public key from user and saves
1730 it into ~./silc/serverkeys/ directory.
1732 Added into: clientutil.[ch]: silc_client_verify_server_key.
1734 * Changed SKE protocol's silc_ske_initiator_finish function
1735 to accept callback function that verifies the received public
1736 key. Removed old silc_ske_verify_public_key function.
1738 Wed Jul 5 19:19:02 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1740 * Added into silcpkcs[ch]: silc_pkcs_public_key[_data]_set and
1741 silc_pkcs_private_key[_data]_set.
1743 * Made the password and public authentication more cleaner in
1744 server's protocol.c.
1746 * Removed historic and obsolete protocol `channel_auth' from
1747 both client and server.
1749 * Removed wrong way of sending command status messages from
1750 server to client in server's command.c. The old way violated
1751 protocol specification.
1753 Changes to silccore/silccommand.[ch]: removed
1754 silc_command_encode_status_payload -> not needed anymore,
1755 changed silc_command_encode_payload_va to accept extra
1756 argument on variable argument list. The argument type must
1757 now be provided to the function. Also, added new function:
1758 silc_command_encode_reply_payload_va which is same as
1759 normal command_encode_payload_va except command status type
1760 is provided as extra argument.
1762 Tue Jul 4 18:26:39 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1764 * Added ~./silc directory handling. The directory includes the
1765 public and private keys for the client.
1767 Added silc_client_check_silc_dir, silc_client_create_identifier
1768 and silc_client_load_keys.
1770 * Implemented SILC protocol compliant public key. Added public
1771 and private key saving to and loading from files.
1773 Added into silcpkcs.[ch]: silc_pkcs_encode_identifier,
1774 silc_pkcs_public_key_encode[_data], silc_pkcs_public_key_decode,
1775 silc_pkcs_private_key_encode[_data], silc_pkcs_private_key_decode,
1776 silc_pkcs_public_key_alloc, silc_pkcs_public_key_free,
1777 silc_pkcs_private_key_alloc and silc_pkcs_private_key_free.
1779 Implemented: silc_pkcs_save_[public/private]_key[_data] and
1780 silc_pkcs_load_[public/private]_key.
1782 Mon Jul 3 18:51:27 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1784 * Added silc_server_get_route (route.[ch]) to get connection
1785 data for the fastest route for given ID.
1787 * Implemented INVITE command on client and server. The command
1788 were re-defined in the SILC Protocol Specification and the
1789 implementation now complies with the specification.
1791 * Implemented PING command on client and server.
1793 * Implemented NAMES command on client and server. The server side
1794 supports currently only normal server not router server yet.
1795 Some changes to NAMES definition in SILC protocol specification.
1797 Sun Jul 2 18:23:01 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1799 * Implemented LEAVE command on client and server.
1801 * Previously deprecated SILC_PACKET_FORWARDED flag is now in use
1802 again. This change was made to the protocol as well. Server
1803 should not violate the protocol specification anymore.
1805 Fri Jun 30 14:03:26 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1807 * Added SOCKS4 and SOCKS5 support to SILC client. SOCKS5
1808 was tested. SOCKS4 was not but should work anyway.
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