1 Mon Mar 19 16:13:07 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
3 * Added silc_server_get_client_route to resolve the route to
4 the client indicated by the client ID. Affected file is
7 * Added silc_server_relay_packet as general function to relay
8 packet to arbitrary destination. This deprecates functions
9 like _send_private_message_key, _relay_notify etc. Affected
10 file is silcd/packet_send.[ch].
12 Removed silc_server_send_key_agreement,
13 silc_server_send_private_message_key and
14 silc_server_packet_relay_notify functions from the file
15 silcd/packet_send.[ch].
19 * Implemented the SILC_NOTIFY_TYPE_KILLED notify handling in the
20 server. Affected file silcd/packet_receive.[ch].
22 * Implemented the KILL command to the client. Implemented the
23 SILC_NOTIFY_TYPE_KILLED notify handling in the client library.
24 Affected files lib/silcclient/command[_reply].c and
25 lib/silcclient/client_notify.c. Implemented the KILL notify
26 printing in the user inteface.
28 * Fixed a lot silc_parse_nick memory leaks from the client
29 library in the file lib/silcclient/command.c.
31 * Changed the silc_server_send_notify_on_channels's `sender'
32 argument from SilcSocketConnection to SilcClientEntry to
33 check the sender as entry and not as connection object and not
34 to send to the client provided as argument. The affected file
35 is silcd/packet_send.[ch].
37 * The notify packets that are destined directly to the client used
38 to not to be processed by the server. Now changed that and the
39 server processes all notify packets. After relaying the packet
40 to the client the notify packet is processed in the server.
42 * The silc_server_free_client_data now checks whether there is
43 pending outgoing traffic for the client and purges the data to
44 the network before removing the client entry.
46 Sun Mar 18 21:02:47 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
48 * Added SILC_NOTIFY_TYPE_KILLED notify type. It is sent when
49 an client is killed from the SILC Network. Updated the protocol
52 Added new function silc_server_send_notify_killed to the
53 silcd/packet_send.[ch].
55 * Added function silc_server_packet_relay_notify to relay notify
56 packets that are destined directly to a client. In this case
57 the server does not process the notify packets but merely relays
58 it to the client. Affected file silcd/packet_send.[ch].
60 Added also silc_server_packet_process_relay_notify to check
61 whereto relay the notify. Affected file is
62 silcd/packet_receive.[ch].
64 * Implemented the KILL command to the server.
68 * Added the backup schema desgined last fall to the protocol
69 specs for everyone to see. The specification is in the
70 *-spec-xx.txt draft and the packet type definitions for the
71 backup routers is in *-pp-xx.txt draft. Thusly, added also
72 new packet type SILC_PACKET_CELL_ROUTERS.
74 * A big security problem in the implementation discovered. The
75 signoff of an client did not cause new channel key generation
76 which it of course should've done. The channel keys must be
77 always re-generated when client leaves (or signoffs) the channel.
78 The silc_server_remove_from_channels funtion now handles
79 the channel key re-generation.
81 * Added `sender' argument to the silc_server_send_notify_on_channels
82 to not to send the client provided as argument. Affected file
83 silcd/packet_send.[ch].
85 Fri Mar 16 15:52:49 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
87 * Implemented OPER and SILCOPER commands into the server and
90 * Added silc_auth_verify and silc_auth_verify_data to verify
91 the authentication directly from the authentication payload.
92 It supports verifying both passphrase and public key based
93 authentication. Affected file lib/silccore/silcauth.[ch].
95 * Added `hash' field to the SilcIDListData structure. It is the
96 hash negotiated in the SKE protocol. Affected file is
99 * Slight redesigning of the SilcAuthPayload handling routines.
100 Do not send SilcPKCS but SilcPublicKey as argument.
102 * Implemented the public key authentication support to the
103 serverconfig. The public key is loaded fromthe provided path
104 and saved as authentication data to void * pointer. Thus,
105 changed the unsigned char *auth_data to void *auth_data;
107 * Fixed SHUTDOWN command to send the reply before the server
108 is shutdown. :) Affected file silcd/command.c.
110 * Fixed fatal bug in CONNECT command. The hostname was invalid
111 memory and server crashed. Affected file silcd/command.c.
113 * Fixed fatal bug in CLOSE command. The server_entry became
114 invalid but was referenced later in the command. Affected file
117 Thu Mar 15 12:46:58 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
119 * Fixed fatal bug in failure packet handling. Server ignored
120 the failure and thus crashed when it came.
124 Wed Mar 14 20:37:35 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
126 * Added new SILC_CF_LAG_STRICT command flag that strictly forces
127 that the command may be executed only once in (about) 2 seconds.
128 The old SILC_CF_LAG flag is same but allows command bursts up
129 to five before limiting.
131 Added the support for CF_LAG and CF_LAG_STRICT flags to the
132 server code. Various commands now includes the CF_LAG_STRICT
133 flag to disallow any kind of miss-use of the command.
135 * Fixed the silc_buffer_unformat to not to allocate any data
136 if the length of the data is zero. It used to allocate the
137 length + 1. Affected file lib/silcutil/silcbuffmt.c.
139 Wed Mar 14 16:10:30 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
141 * Changed the format of AdminConnection configuration section
142 in the server. Added username of the admin to the format.
143 Affected files silcd/serverconfig.[ch].
145 Added silc_server_config_find_admin into silcd/serverconfig.[ch]
146 to return admin configuration data by host, username and/or
149 Wed Mar 14 13:18:16 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
151 * Implemented WHOWAS command to the server. Added the functions:
153 silc_server_command_whowas_parse,
154 silc_server_command_whowas_send_reply,
155 silc_server_command_whowas_from_client and
156 silc_server_command_whowas_from_server
158 * Added <Client ID> argument to the WHOWAS command reply. Updated
159 the protocol specs accordingly.
161 * Implemented WHOWAS command and command_reply to the client
164 Implemented the WHOWAS printing on the user interface.
166 Tue Mar 13 22:17:34 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
168 * Added new argument to the WHOWAS command reply, the real name.
169 It is an optional argument. Updated the protocol specs.
171 * Added SilcIDCacheDestructor callback that is registered when
172 the SilcIDCache is allocated. The callback is called when
173 an cache entry in the ID Cache expires, or is purged from the
174 cache. Added into lib/silccore/idcache.[ch].
176 Added silc_idlist_client_destructor to the silcd/idlist.[ch]
177 to destruct the client entries when the cache entry expires.
178 Other ID Cache's in server and in the client library ignores
181 * If the ID Cache entry's `expire' field is zero then the entry
182 never expires. Added boolean `expire' argument to the
183 silc_idcache_add function in the lib/silccore/idcache.[ch].
184 If it is TRUE the default expiry value is used.
186 * Added silc_server_free_client_data_timeout that is registered
187 when client disconnects. By default for 5 minutes we preserve
188 the client entry for history - for WHOWAS command.
190 Tue Mar 13 13:26:18 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
192 * Added support to the server to enforce that commands are not
193 executed more than once in 2 seconds. If server receives
194 commands from client more frequently, timeout is registered
195 to process the commands. Affected file silcd/command.c.
196 Added new function silc_server_command_process_timeout.
198 * Changed NICK_NOTIFY handling in client library to check that
199 if the client's nickname was changed, so there is no need to
200 resolve anything from the server.
202 * Removed error printing from the WHOIS and IDENTIFY commands.
203 If error occurs then it is ignored silently in the client library.
204 The application, however, may map the received error to
205 human readable error string. The application currently maps
206 the NO_SUCH_NICKNAME error to string.
208 * Made the command status message public to the application. Moved
209 them from lib/silcclient/command_reply.c to
210 lib/silcclient/command_reply.h. The application can map the
211 received command status to the string with the
212 silc_client_command_status_message function.
214 * Added check to the server to check that client's ID is same
215 as the Source ID in the packet the client sent. They must
218 Tue Mar 13 12:49:21 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
220 * Added dist-bzip hook to the Makefile.am to make bzip2
221 compressed distributions.
223 Mon Mar 12 18:43:38 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
225 * Server now enforces the maximum length for the nickname and
226 the channel as protocol specification dictates. 128 bytes for
227 nickname and 256 bytes for channel name.
229 * Moved the WHOIS printing to the application. The client libary
230 does not print out the WHOIS information anymore, the application
231 must do it. Renamed silc_client_command_reply_whois_print to
232 the silc_client_command_reply_whois_save.
234 The client's idle time is also sent to the application now, and
235 the idle is shown on screen.
237 * Added silc_client_command_reply_identify_save to save the
238 received IDENTIFY entries.
240 * Do not check for channel private keys in message sending and
241 reception if the channel does not have the PRIVKEY mode set.
242 Affected file lib/silclient/client_channel.c.
244 Sun Mar 11 20:25:06 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
246 * Fixed a minor bug if WHOIS and IDENTIFY command parsing that
247 just surfaced after chaning the JOIN procedure.
249 Sun Mar 11 14:59:05 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
251 * Added silc_client_get_clients_by_list to get client entries
252 from Client ID list, that is returned for example by JOIN
253 and USERS command replies. The application should use this
254 function for example when JOIN command reply is received to
255 resolve the clients already on the channel (library does not
256 do that anymore as USERS command reply is not used in the JOIN
257 procedure anymore). Affected files lib/silcclient/silcapi.h and
258 lib/silcclient/idlist.c.
260 * JOIN command reply and USERS command reply returns now SilcBuffer
261 pointers instead of unsigned char pointers when returning
262 the client list and mode list.
264 * Added <Client ID> argument to the JOIN command reply, mainly
265 for the server to identify for which client the command was
266 originally sent. Updated protocol specs accordingly.
268 * Added SilcDlist private_key pointer to the SilcChannelEntry
269 in the client to support the channel private keys. Affected
270 file is lib/silcclient/idlist.h.
272 * Added SilcChannelPrivateKey argument to the function
273 silc_client_send_channel_message so that application can choose
274 to use specific private ke if it wants to. If it is not provided,
275 the normal channel key is used, unless private keys are set.
276 In this case the first (key that was added first) is used
277 as the encryption key.
279 * Implemented the support for channel private key handling.
280 Implemented the following functions:
282 silc_client_add_channel_private_key,
283 silc_client_del_channel_private_keys,
284 silc_client_del_channel_private_key,
285 silc_client_list_channel_private_keys and
286 silc_client_free_channel_private_keys
288 Affected file lib/silcclient/client_channel.c.
290 * Added the support for the private keys in the channel message
291 sending and encryption and in the message reception and
292 decryption. Affected funtions are
293 silc_client_send_channel_message and silc_client_channel_message.
295 Sat Mar 10 21:36:22 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
297 * Added SKE's key verify callback to the client library's
298 KE protocol context. Affected files lib/silcclient/protocol.[ch].
300 * Removed the statement that server (or router) must send USERS
301 command reply when joining to the channel so that the client
302 knows who are on the channel. Instead, the client list and
303 client's mode list is now sent in the JOIN command reply to the
304 client who joined channel. This is better solution.
306 * Added function silc_server_get_users_on_channel and function
307 silc_server_save_users_on_channel to the silcd/server.[ch].
309 * Removed function silc_server_command_send_users from the
312 * Do not show topic on the client library anymore. The topic is
313 sent in the command reply notify to the application and the
314 application must show the topic now.
316 Sat Mar 10 00:07:37 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
318 * Added client searching by nickname hash into the IDENTIFY and
319 WHOIS commands in the server as they were clearly missing from
320 them. Affected file is silcd/command.c.
322 * Fixed a bug in private message receiving in the client library.
323 The remote ID was freed and it wasn't supposed, now it is
326 Fri Mar 9 12:40:42 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
328 * Minor fix to the channel payload; allocate the data area, as it
329 needs to be of specific length.
331 * If the key agreement port is zero then the operating
332 system will define the bound port. Affected files are
333 lib/silcclient/silcapi.h and lib/silcclient/client_keyagr.c.
335 * Added new function silc_channel_payload_decrypt into the file
336 lib/silccore/silcchannel.[ch].
338 * Moved the channel message etc, check from silc_packet_decrypt
339 to applications. The library calls now a generic
340 SilcPacketCheckDecrypt callback which is to return TRUE or FALSE
341 when the packet is either normal or special. This was done to
342 allow more wide range of checking that was not allowed when
343 the code was in library. Now applications can do virtually any
344 checks to the packet and return to the library the decision how
345 the packet should be processed. Affected files are
346 lib/silccore/silcpacket.[ch].
348 Added silc_server_packet_decrypt_check to the server and
349 silc_client_packet_decrypt_check to the client library.
351 * Added silc_server_packet_send_srcdest into silcd/packet_send.[ch]
352 to send with specified source and destination information.
354 * Channel message delivery between routers was broken after the
355 channel key distribution was fixed earlier. The channel key
356 was used be to distributed to other routers as well which is not
357 allowed by the protocol. Now this is fixed and channel keys
358 really are cell specific and the channel message delivery between
359 routers comply with the protocol specification.
361 * Fixed various commands in server to check also the global list
362 for the channel entry and not just the local list. The affected
363 file silcd/command.c.
365 Thu Mar 8 21:39:03 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
367 * Added assert()s to buffer formatting and unformatting routines
368 to assert (if --enable-debug) when error occurs. Affected
369 file: lib/silcutil/silcbuffmt.c.
371 * Changed to auto-reconnect to check whether the remote host is
372 router and register the re-connect timeout if it is. It used
373 to check that whether we are normal server, but router must do
374 auto-reconnect with another router as well. Affected file
377 * Removed the [<key len>] option from CMODE command as the cipher
378 name decides the key length, nowadays. See the defined ciphers
379 from the protocol specification.
381 * Added [<hmac>] option to the CMODE command to define the HMAC
382 for the channel. Added SILC_CMODE_HMAC channel mode.
384 * Added [<hmac>] option for the JOIN command so that user can
385 select which HMAC is used to compute the MACs of the channel
388 * Added Hmac field to the Channel Message Payload. The integrity
389 of plaintext channel messages are now protected by computing
390 MAC of the message and attaching the MAC to the payload. The
391 MAC is encrypted. Now, it is clear that this causes some
392 overhead to the size of the packet but rationale for this is that
393 now the receiver can verify whether the channel message decrypted
394 correctly and also when private keys are set for the channel the
395 receiver can decrypt the packet with several keys and check from
396 the MAC which key decrypted the message correctly.
398 * Added silc_cipher_encrypt and silc_cipher_decrypt into the
399 lib/silccrypt/silccipher.[ch].
401 * Added silc_hash_len to return the digest length into the
402 lib/silcrypt/silchash.[ch].
404 * Rewrote parts of Silc Channel Payload interface in the
405 lib/silccore/silcchannel.[ch]. The encode function now also
406 encrypts the packet and parse function decrypts it.
408 Wed Mar 7 20:58:50 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
410 * Fixed a minor formatting bug in the SKE's key material processing.
411 It actually might have processed the keys wrong way resulting
414 * Redefined the mandatory HMAC algorithms and added new algorithms.
415 Added hmac-sha1-96 and hmac-md5-96 which are normal hmac-sha1
416 and hmac-md5 truncated to 96 bits. The mandatory is now
417 hmac-sha1-96. Rest are optional (including the one that used
418 to be mandatory). Rationale for this is that the truncated HMAC
419 length is sufficient from security point of view and can actually
420 make the attack against the HMAC harder. Also, the truncated
421 HMAC causes less overhead to the packets. See the RFC2104 for
424 * Added new [hmac] configuration section. The SKE used to use
425 the hash names (md5 and sha1) in the SKE proposal as HMCAS which
426 is of course wrong. The official names that must be proposed in
427 the SKE are the ones defined in the protocol specification
428 (hmac-sha1-96 for example). The user can configure any hmac
429 using any hash function configured in the [hash] section. At
430 least, the mandatory must be configured.
432 Rewrote the HMAC interface in lib/silccrypt/silchmac.[ch].
434 * Added HMAC list to the SKE proposal list. It has now both
435 hash algorithm list and HMAC list. This makes the protocol
436 incompatible with previous versions. The SKE now seems to work
437 the way it is supposed to work, for the first time actually.
439 * Defined plain Hash algorithms to the protocol specification.
442 Tue Mar 6 15:36:11 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
444 * Implemented support for key agreement packets into the server.
445 Added functions silc_server_key_agreement and
446 silc_server_send_key_agreement. Other than these functions,
447 server has nothing to do with this packet.
449 * Added support for private message key packets into the server.
450 Added functions silc_server_private_message_key and
451 silc_server_send_private_message_key.
455 * Changed the silc_[client|server]_protocol_ke_set_keys to be
456 called in the protocol's final callback instead in the END
457 protocol state. This makes a little more sense and in the same
458 time in client we can use the same protocol routines for normal
459 key exchange and to key agreement packet handling as well.
461 * Added to both client's and server's KE protocol context the
462 SilcSKEKeyMaterial pointer to save the key material. We will
463 bring the key material to the protocol's final callback by doing
464 this. The final callback must free the key material.
466 * Added SKE's packet_send callback into client's KE protocol
467 context so that the caller can choose what packet sending function
468 is used. This way we can use different packet sending when
469 doing normal SKE when doing key agreement packet handling (in
470 the key agreement packet handling we do not want to encrypt
473 * Implemented the responder side of the key agreement routines
474 in the client. The client can now bind to specified port and
475 accept incoming key negotiation. The key material is passed
476 to the application after the protocol is over.
478 * Implemented the processing of incoming Key Agreement packet
479 in the client. Added function silc_client_key_agreement to
482 * Implemented the intiator side of the key agreement routines
483 in the client. The client can now initiate key agreement with
484 another remote client. The key material is passed to the
485 application after the protocol is over.
487 * Created client_keyagr.c to include all the key agreement
490 * Added macro SILC_TASK_CALLBACK_GLOBAL which is equal to the
491 SILC_TASK_CALLBACK except that it is not static.
493 * Created client_notify.c and moved the Notify packet handling
494 from the client.[ch] into that file.
496 * Created client_prvmsg.c and moved all private message and
497 private message key routines from the client.[ch] into that file.
499 * Create client_channel.c and moved all channel message and
500 channel private key routines from the client.[ch] into that file.
502 * Changed silc_client_get_client_by_id_resolve to resolve with
503 WHOIS command instead of IDENTIFY command, in the file
504 lib/silclient/idlist.c.
506 Mon Mar 5 18:39:49 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
508 * Implemented the SKE's responder side to the Client library.
510 * When FAILURE is received to the protocol do not trust it
511 blindly. Register a timeout to wait whether the remote closes
512 the connection as it should do it, only after that process the
513 actual failure. This was changed to both client and server.
515 * Added client_internal.h to include some of the structures
516 there instead of client.h in lib/silcclient/.
518 * Added function silc_task_unregister_by_callback to unregister
519 timeouts by the callback function.
521 Sat Mar 3 19:15:43 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
523 * Some "Incomplete WHOIS info" errors has been appearing on the
524 log files. Took away the entry->userinfo check from WHOIS
525 reply sending. The entry->userinfo is now " " if client did not
526 provide one. I thought this was fixed earlier but something
527 is wrong still. Let's see if the error still appears.
529 Wed Feb 28 20:56:29 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
531 * Fixed a minor bug in the login when the channel key is
532 re-generated in the server. It used to generate the key in
533 wrong order and thus caused problems in the channel traffic.
535 * Fixed a minor bug in channel key distsribution after
536 KICK command. The key was not sent to the router even though
539 Tue Feb 27 20:24:25 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
541 * Added silc_ske_process_key_material_data as generic routine
542 to process any key material as the SILC protocol dictates. The
543 function is used by the actual SKE library but can be used by
544 applications as well. This relates to the private message keys
545 and the channel private keys since they must be processed the
546 same way the normal SILC session keys. The protocol dictates
547 this. Affected files: lib/silcske/silcske.[ch].
549 Added also silc_ske_free_key_material to free the
550 SilcSKEKeyMaterial structure.
552 * Defined silc_cipher_set_key function to set the key for
553 cipher without using the object's method function. The affected
554 files: lib/silccrypt/silccipher.[ch].
556 * Implemented silc silc_client_add_private_message_key,
557 silc_client_add_private_message_key_ske,
558 silc_client_del_private_message_key,
559 silc_client_list_private_message_keys and
560 silc_client_free_private_message_keys functions in the
563 Added functions silc_client_send_private_message_key to send
564 the Private Message Key payload and silc_client_private_message_key
565 to handle incoming Private Message Key payload.
567 * Added Cipher field to the Private Message Key payload to set
568 the cipher to be used. If ignored, the default cipher defined
569 in the SILC protocol (aes-256-cbc) is used.
571 Tue Feb 27 13:30:52 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
573 * Removed lib/silcclient/ops.h file.
575 Redefined parts of the SILC Client Library API. Created new
576 file silcapi.h that deprecates the ops.h file and defines the
577 published Client Library API. Defined also private message key
578 API and channel private key API into the file.
580 This is the file that the application must include from the
581 SILC Client Library. Other files need not be included by
582 the application anymore.
584 * Added new key_agreement client operation callback and also
585 defined the Key Agreement library API for the application.
587 Tue Feb 27 11:28:31 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
589 * Added new packet type: SILC_PACKET_KEY_AGREEMENT. This packet
590 is used by clients to request key negotiation between another
591 client in the SILC network. If the negotiation is started it
592 is performed using the SKE protocol. The result of the
593 negotiation, the secret key material, can be used for example
594 as private message key.
596 Implemented the Key Agreement payload into the files
597 lib/silccore/silauth.[ch].
599 Mon Feb 26 12:13:58 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
601 * Redefined ciphers for the SILC protocol. Added some new ciphers
602 and defined the key lengths for the algorithms. Changed the
603 code accordingly. The default key length is now 256 bits.
605 * Fixed SKE key distribution function silc_ske_process_key_material
606 when the key length is more than 128 bits. The default key
607 length in SILC is now 256 bits.
609 * Added new command status type: SILC_STATUS_ERR_UNKOWN_ALGORITHM
610 to indicate unsupported algorithm.
612 * Renamed rijndael.c to aes.c and all functions as well.
614 * Fixed a long standing channel key setting bug in client library.
615 Weird that it has never surfaced before.
617 * Fixed bug in channel deletion. If the entire channel is removed
618 then it must also delete the references of the channel entry
619 from the client's channel list as the client's channel entry and
620 the channel's client entry share same memory.
622 Sun Feb 25 20:47:29 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
624 * Implemented CONNECT and SHUTDOWN commands in the client.
626 * Implemented CLOSE command to the client.
628 * Added the function silc_idlist_find_server_by_name into the
629 files silcd/idlist.[ch].
631 Added the function silc_idlist_find_server_by_conn into the
632 files silcd/idlist.[ch].
634 Sat Feb 24 23:45:49 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
636 * DIE command was renamed to SHUTDOWN. Updated the both code
639 * Defined SILC_UMODE_NONE, SILC_UMODE_SERVER_OPERATOR and
640 SILC_UMODE_ROUTER_OPERATOR modes into lib/silccore/silcmode.h.
642 * Implemented CONNECT, CLOSE and SHUTDOWN commands to the server
645 * Added function silc_server_create_connection function to create
646 connection to remote router. My server implementation actually
647 does not allow router to connect to normal server (it expects
648 that normal server always initiates the connection to the router)
649 so the CONNECT command is only good for connecting to another
652 Sat Feb 24 16:03:45 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
654 * Added SILC_NOTIFY_TYPE_KICKED to indicate that the client
655 or some other client was kicked from the channel.
657 Implemented the handling of the notify type to both client
660 Implemented silc_server_send_notify_kicked to send the KICKED
661 notify. It is used to send it to the server's primary router.
663 * Implemented the KICK command into server and client.
665 * Added `query' argument to the silc_idlist_get_client function
666 to indicate whether to query the client from server or not if
669 * Added new command status type SILC_STATUS_ERR_NO_CHANNEL_FOPRIV
670 to indicate that the client is not channel founder.
674 Sat Feb 24 00:00:55 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
676 * Removed the rng context from SilcPacketContext structure and
677 changed that the packet routine uses the Global RNG API.
679 Fri Feb 23 11:22:57 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
681 * Added support for quit message that client can "leave" on the
682 channel when it quits the SILC. It is ditributed inside the
683 SILC_NOTIFY_TYPE_SIGNOFF notify type.
685 Added silc_server_free_client_data that will take the
686 signoff message as argument.
688 * Changed SKE routines to use the silc_pkcs_sign/verify routines.
690 Thu Feb 22 23:05:36 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
692 * Updated parts of the protocol specification to keep it up
695 Thu Feb 22 15:08:20 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
697 * Added List flag (SILC_PACKET_FLAG_LIST) to indicate list of
698 payloads in one packet.
700 * Deprecated following packet types: NEW_ID_LIST, NEW_CHANNEL_LIST,
701 NEW_CHANNEL_USER_LIST, SET_MODE and SET_MODE_LIST. List packets
702 use now the new List flag.
704 * Also deprecated the following packet types: REPLACE_ID,
705 NEW_CHANNEL_USER and REMOVE_CHANNEL_USER packet types.
707 * Added list support for Notify packet in server.
709 * Added silc_server_send_notify_channel_change to send the
710 CHANNEL_CHANGE notify type to replace channel ID's. Deprecates
711 the silc_server_send_replace_id.
713 * Added silc_server_send_notify_nick_change to send the
714 NICK_CHANGE notify type. Deprecates the function
715 silc_server_send_replace_id.
717 * Added silc_server_send_notify_join to send the JOIN notify type.
718 Deprecates the function silc_server_send_new_channel_user.
720 * Added silc_server_send_notify_leave to send LEAVE notify type.
721 Deprecates the function silc_server_send_remove_channel_user.
723 * Added silc_server_send_notify_cmode and
724 silc_server_send_notify_cumode to send CMODE and CUMODE notify
725 types. Deprecates the silc_server_send_set_mode function.
727 * Added SERVER_SIGNOFF notify type to indicate that server has
728 quit. This means that all clients on the channel from that
729 server will drop. This can be also used when netsplit happens.
731 Deprecated REMOVE_ID packet type since it is not needed anymore
734 Added silc_server_send_notify_server_signoff to send the
735 SERVER_SIGNOFF notify type. Deprecates the function
736 silc_server_send_remove_id.
738 Added also silc_server_send_notify_signoff to send the
741 * Employed the PKCS #1. It is the mandatory way to do RSA in the
742 SILC protocol from this day on. Changed the protocol
743 specification as well.
745 * Added silc_server_send_notify_topic_set to send TOPIC_SET
746 notify type. It is used between routers to notify about
747 topic changes on a channel.
749 * Added silc_id_dup into lib/silccore/id.[ch] to duplicate
752 * Partly updated the protocol specification to comply with the
753 changes now made. It is still though a bit outdated.
755 * The JOIN notify type now takes one extra argument <Channel ID>.
756 The packet used to be destined to the channel but now the
757 JOIN type may be sent as list thus it is impossible to
758 destine it to any specific channel. By adding this argument
759 it is again possible.
761 Wed Feb 21 22:39:30 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
763 * Added CREDITS file. The CHANGES and CREDITS file will appear
764 in the distribution as well.
766 Wed Feb 21 14:17:04 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
768 * Implemented CMODE_CHANGE, CUMODE_CHANGE and TOPIC_SET notify
769 types in the server's silcd/packet_receive.c.
771 * Implemented CMODE and CUMODE to work in router environment.
773 * Fixed minor encoding and decoding buglet from the
774 lib/silccore/silcmode.c.
776 * Fixed buffer overflow from lib/silcclient/command.c in USERS
779 Wed Feb 21 12:44:00 EET 2001 Mika Boström <bostik@lut.fi>
781 * Changed all SilcConfigServer* and silc_config_server* to
782 SilcServerConfig* and silc_server_config*, respectively.
785 Wed Feb 21 00:10:00 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
787 * Associated the ID (client or server ID) to the Authentication
788 Payload to avoid any possibility of forging. Updated the
789 protocol specification and the code accordingly.
791 Tue Feb 20 14:14:14 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
793 * The RSA key length is now save to the RsaKey context in the
794 key generation process in lib/silccrypt/rsa.c. The key length
795 is now used to figure out the maximum size of the block allowed
796 to be encrypted/signed.
798 * Added silc_mp_mp2bin_noalloc into lib/silcmath/mpbin.[ch]. It
799 is equivalent to the silc_mp_mp2bin but does not allocate any
802 * Changed silc_mp_mp2bin API to take length argument. If it is
803 non-zero then the buffer is allocated that large. If zero, then
804 the size is approximated using silc_mp_sizeinbase, which however
807 * Created Global RNG API which is global RNG that application can
808 initialize. After initializing, any routine anywhere in the
809 code (including library) can use RNG without allocating a new
810 RNG object. This was done to allow this sort of use of the
811 RNG in code that has no chance to allocate RNG object. All
812 applications currently allocate this and many routines in the
813 library use this. Affected file lib/silccrypt/silcrng.[ch].
815 * Removed the RNG kludge from lib/silcmath/primegen.c and changed
816 it to use the Global RNG API.
818 * Defined Authentication Payload into protocol specification that
819 is used during SILC session to authenticate entities. It is
820 used for example by client to authenticate itself to the server
821 to obtain server operator privileges.
823 Implemented this payload into the lib/silccore/silcauth.[ch].
824 Implemented also routines for public key based authentication
825 as the new protocol specification dictates.
827 Moved definitions of different authentication methods from
828 lib/silccore/silcprotocol.h into lib/silccore/silcauth.h.
830 * Added silc_pkcs_encrypt, silc_pkcs_decrypt, silc_pkcs_sign,
831 silc_pkcs_verify and silc_pkcs_sign_with_hash and
832 silc_pkcs_verify_with_hash functions into the file
833 lib/silccrypt/silcpkcs.[ch].
835 Mon Feb 19 19:59:28 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
837 * The client entry's userinfo pointer must be always valid.
838 Otherwise the [<unknown>] bug will surface beacuse the WHOIS
839 will fail since it requires the userinfo. Now, the userinfo
840 is allocated as "" if actual userinfo does not exist. Actually,
841 it must exist and it is totally Ok to drop client connections
842 that does not announce the userinfo. However, we will make
843 this workaround for now.
845 * Added silc_net_get_remote_port into lib/silcutil/silcnet.[ch]
846 to return the remote port by socket.
848 Mon Feb 19 14:26:49 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
850 * Changed SILC_SERVER_COMMAND_EXEC_PENDING macro to the name
851 SILC_SERVER_PENDING_EXEC and added an new macro
852 SILC_SERVER_PENDING_DESTRUCTOR which is called to free the
853 data or when error occurs while processing the pending command.
855 Added new argument `destructor' into silc_server_command_pending
856 and to the SilcServerCommandPending object. This destructor is
857 now called after calling the pending callback or if error occurs
858 immediately. If error occurs the actual pending callback won't
859 be called at all - only the destructor. The destructor may be
860 NULL if destructor is not needed.
862 All this applies for client library code as well. Similar
863 changes were made there as well for the pending commands.
865 In the client, the application must now allocate the
866 SilcClientCommandContext with the silc_client_command_alloc
869 * Added reference counter to the SilcServerCommandContext. Added
870 function silc_server_command_alloc and silc_server_command_dup
873 Same type of functions added to the client library for the same
876 * Removed the cmd_ident from IDListData away since it is now
877 global for all connections. It is the command identifier used
878 in command sending and with pending commands. The affected file
881 * Added reference counter to the SilcSocketConnection objecet to
882 indicate the usage count of the object. The object won't be
883 freed untill the reference counter hits zero. Currently only
884 server uses this, and client ignores it. The client must be
885 set to use this too later. The affected files are
886 lib/silccore/silcsockconn.[ch]. Added also the function
887 silc_socket_dup to increase the reference counter.
889 This was mainly added because it is possible that the socket
890 is removed underneath of pending command or other async
891 operation. Now it won't be free'd and proper DISCONNECTING
892 flags, etc. can be set to avoid sending data to connection that
893 is not valid anymore.
895 * Added SILC_SET_DISCONNECTING to server.c when EOF is read from
896 the connection. After that it sets SILC_SET_DISCONNECTED.
897 It is, however, possible that the socket data is not still freed.
898 The silc_server_packet_process now checks that data is not
899 read or written to connection that is DISCONNECTED. The socket
900 get's freed when the reference counter hits zero.
902 Mon Feb 19 00:50:57 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
904 * Changed the client operation API: channel_message operation's
905 `sender' is now the client entry of the sender, not the nickname
906 and the `channel' is the channel entry, not the channel name.
908 In the private_message operation the `sender' is now also the
909 client entry of the sender not the nickname.
911 Affected file is lib/silcclient/ops.h and all applications
912 using the client operations.
914 Sat Feb 17 22:11:50 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
916 * Moved the calling of ops->connect() from connect_to_server_final
917 into receive_new_id functin since that is the point when the
918 client is actually allowed to send traffic to network. The
919 affected file is lib/silcclient/client.c.
921 Sat Feb 17 13:15:35 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
923 * When receiving NEW_CHANNEL_LIST, NEW_CHANNEL_USER_LIST,
924 NEW_ID_LIST and SET_MODE_LIST packets, broadcast the list packet
925 (if needs broadcasting) instead of broadcasting the packets one
926 by one which would make a burst in the network traffic.
928 * Added `broadcast' argument to the functions in silcd/server.[ch]
929 silc_server_create_new_channel[_with_id] to indicate whether
930 to send New Channel packet to primary router.
932 Sat Feb 17 01:06:44 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
934 * Added new function into the silcd/server.[ch] files:
935 silc_server_create_new_channel_with_id to create new channel with
936 already existing Channel ID.
938 * Added new packet type SILC_PACKET_SET_MODE_LIST into the file
939 lib/silccore/silcpacket.h. This packet is used t send list of
940 Set Mode payloads inside one packet. Server uses this to set
941 the modes for the channels and clients on those channels, that it
942 announced to the router when it connected to it. The protocol
943 specification has been updated accordingly.
945 * The silc_server_new_channel did not handle the packet coming
946 from normal server as it normally does not send that. However,
947 when it announces its channels it does send it. Implemented
948 the support for that.
950 * Added SILC_ID_CHANNEL_COMPARE macro to compare to Channel ID's
951 into the file lib/silccore/id.h.
953 Fri Feb 16 23:57:29 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
955 * Fixed memory leaks in the functions silc_idlist_del_client,
956 silc_idlist_del_channel and silc_idlist_del_server in the file
957 silcd/idlist.c. All of those leaked like a sieve.
959 * Fixed some small memory leaks in the client's function
960 silc_client_notify_by_server.
962 * Added functions into silcd/server.c: silc_server_announce_clients,
963 silc_server_announce_channels and silc_server_announce_server.
964 These functions are used by normal and router server to announce
965 to its primary router about clients, channels and servers (when
966 router) that we own. This is done after we've connected to the
969 These functions effectively implements the following packet types:
970 SILC_PACKET_NEW_CHANNEL_LIST, SILC_PACKET_NEW_CHANNEL_USER_LIST
971 and SILC_PACKET_NEW_ID_LIST.
973 * Added new functions into the silcd/packet_receive.[ch]:
974 silc_server_new_id_list, silc_server_new_channel_list and
975 silc_server_new_channel_user_list to handle the incoming
976 NEW_ID_LIST, NEW_CHANNEL_LIST and NEW_CHANNEL_USER_LIST packets.
978 * Added support of changing Channel ID in the function
979 silc_server_replace_id. If the server that announces a channel
980 to the router already exists in the router (with same name but
981 with different Channel ID), router is responsible to send
982 Replace ID packet to the server and force the server to change
983 the Channel ID to the one router has.
985 * Added new notify type SILC_NOTIFY_TYPE_CHANNEL_CHANGE to notify
986 client that the Channel ID has been changed by the router. The
987 normal server sends this to the client. Client must start using
988 the new Channel ID as the channel's ID.
990 Implemented handling of this new type into lib/silcclient/client.c
991 into the function silc_client_notify_by_server.
993 * Added new function silc_idlist_replace_channel_id into the files
994 silcd/idlist.[ch] to replace the Channel ID.
996 Fri Feb 16 14:14:00 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
998 * Call silc_server_command_identify_check always when processing
999 the IDENTIFY command in silcd/command.c
1001 Thu Feb 15 20:07:37 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1003 * Added new packet type SILC_PACKET_HEARTBEAT that is used to
1004 send keepalive packets. The packet can be sent by clients,
1005 servers and routers.
1007 Added function silc_socket_set_heartbeat into the file
1008 lib/silccore/silcsockconn.[ch] to set the heartbeat timeout.
1009 If not set, the heartbeat is not performed. The actual
1010 heartbeat is implemented in the low level socket connection
1011 library. However, application is responsible of actually
1014 Added silc_server_send_heartbeat to send the actual heartbeat
1015 packet into silcd/packet_send.[ch]. Server now performs
1016 keepalive with all connections.
1018 * Added silc_task_get_first function into lib/silcutil/silctask.c
1019 to return the timeout task with shortest timeout. There was a bug
1020 in task unregistration that caused problems. TODO has been
1021 updated to include that task system must be rewritten.
1023 * The client library will now resolve the client information when
1024 receiving JOIN notify from server for client that we know but
1025 have incomplete information.
1027 * Rewrote parts of silc_server_remove_from_channels and
1028 silc_server_remove_from_one_channel as they did not remove the
1029 channel in some circumstances even though they should've.
1031 * Encryption problem encountered in server:
1033 The LEAVE command used to send the Channel Key packet to the
1034 router immediately after generating it. However, the code
1035 had earlier sent Remove Channel user packet but not immediately,
1036 ie. it was put to queue. The order of packets in the router
1037 was that Channel Key packet was first and Remove Channel User
1038 packet was second, even though they were encrypted in the
1039 reverse order. For this reason, MAC check failed. Now, this
1040 is fixed by not sending the Channel Key packet immediately but
1041 putting it to queue. However, this is more fundamental problem:
1042 packets that are in queue should actually not be encrypted
1043 because packets that are sent immediately gets encrypted
1044 actually with wrong IV (and thus MAC check fails). So, packets
1045 that are in queue should be encrypted when they are sent to
1046 the wire and not when they put to the queue.
1048 However, the problem is that the current system has not been
1049 designed to work that way. Instead, the packet is encrypted
1050 as soon as possible and left to the queue. The queue is then
1051 just purged into wire. There won't be any fixes for this
1052 any time soon. So, the current semantic for packet sending
1055 o If you send packet to remote host and do not force the send
1056 (the packet will be in queue) then all subsequent packets to the
1057 same remote host must also be put to the queue. Only after the
1058 queue has been purged is it safe again to force the packet
1061 o If you send all packets immediately then it safe to send
1062 any of subsequent packets through the queue, however, after
1063 the first packet is put to queue then any subsequent packets
1064 must also be put to the queue.
1066 Follow these rules and everything works fine.
1068 Thu Feb 15 14:24:32 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1070 * Added new function silc_server_remove_clients_by_server to
1071 remove all client entries from ID list when the server connection
1072 is lost. In this case it is also important to invalidate all
1073 client entires as they hold the invalid server entry. This
1074 fixes fatal bug when server has lost connection and will reconnect
1077 Wed Feb 14 16:03:25 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1079 * Made some sanity checks to silc_server_daemonise like to check
1080 whether the requested user and group actually exists.
1082 * Added sanity check to SKE's silc_ske_responder_finish to check
1083 that the public and private key actually is valid.
1085 * Invalidate the client's nickname when receiving Replace ID
1086 packet and the Client ID is being replaced. This means that the
1087 server will query the nickname if someone needs it (client)
1090 * Sort the ID Cache in client library when the ID Cache data
1091 has changed (needs sorting).
1093 * Do not allow for SILC client to create several connections to
1094 several servers. The client does not support windows right now
1095 and generating multiple connections causes weird behaviour.
1097 Irssi-silc client does support windows and can handle several
1098 connections without problems, see: www.irssi.org and SILC plugin.
1100 * Fixed some places where client was added to the IDList. The
1101 rule of thumb is following (in order to get everything right):
1102 If the client is directly connected local client then the
1103 `connection' argument must be set and `router' argument must be
1104 NULL to silc_idlist_add_client function. If the client is not
1105 directly connected client then the `router' argument must
1106 bet set and the `connection' argument must be NULL to the
1107 silc_idlist_add_client function.
1109 * The funtion silc_server_packet_send_local_channel actually did
1110 not check whether the client was locally connected or not. It
1111 does that now. Fixed a bug related to LEAVE command.
1113 * Fixed Remove Channel User payload parsing bug in server's
1114 silcd/packet_receive.c. Fixed a bug related to LEAVE command.
1116 * The server's silc_server_save_channel_key now checks also the
1117 global ID list for the channel as it might not be in the local
1118 list. Fixed a bug related to LEAVE command.
1120 * Is this the end of the [<unknown>] buglet that has been lurking
1121 around for a long time? A little for loop fix in server's
1122 silc_server_command_whois_parse that is used by both IDENTIFY
1123 and WHOIS command. At least, this was a clear bug and a cause
1124 of one type of [<unknown>] buglet.
1126 * WHOIS and IDENTIFY commands call the function
1127 silc_server_command_[whois/identify]_check function even if
1128 we are not router server.
1130 Tue Feb 13 19:55:59 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1132 * Added --with-gmp configuration option. If set the GMP
1133 is always compiled in the SILC source tree. If not set then
1134 it is checked whether the system has the GMP3 installed. If
1135 it has then the GMP won't be compiled (the system's headers
1136 and library is used), if it doesn't have it then the GMP is
1137 compiled in the SILC source tree.
1139 Mon Feb 12 11:20:32 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1141 * Changed RSA private exponent generation to what PKCS #1
1142 suggests. We try to find the smallest possible d by doing
1143 modinv(e, lcm(phi)) instead of modinv(e, phi). Note: this is
1144 not security fix but optimization.
1146 Sun Feb 11 18:19:51 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1148 * Added new config entry [Identity] to fork the server and run
1149 it as specific user and group. A patch from Bostik.
1151 * Imported Dotconf configuration library into lib/dotconf.
1152 This will be used to create the SILC configuration files later.
1153 It will appear in the distsribution after this commit.
1155 Sat Feb 10 21:13:45 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1157 * A big code auditing weekend happening. Auditing code for
1158 obvious mistakes, bugs and errors. Also, removing any code
1161 Removed files for being obsolete:
1163 o lib/silcutil/silcbuffer.c (the buffer interface is entirely in
1164 inline in the file lib/silcutil/silcbuffer.h)
1166 o lib/silcutil/silcbufutil.c (the header has inline versions)
1168 Changed code to fix possible error conditions:
1170 o The buffer formatting routines now check that the destination
1171 buffer really has enough space to add the data. This applies for
1172 both buffer formatting and unformatting
1173 (lib/silcutil/silcbuffmt.[ch]). Also, the entire buffer
1174 unformatting was changed to accomodate following rules:
1175 XXX_*STRING_ALLOC will allocate space for the data into the pointer
1176 sent to the function while XXX_*STRING will not allocate or copy
1177 the data into the buffer. Instead it sets the pointer from the
1178 buffer into the pointer sent as argument (XXX_*STRING used to
1179 require that the pointer must be allocated already). This change
1180 makes this whole thing a bit more consistent and more optimized
1181 (note that the data returned in the unformatting with XXX_*STRING
1182 must not be freed now). The routines return now -1 on error.
1184 o Tried to find all code that use buffer_format and buffer_unformat
1185 and added return value checking to prevent formatting and
1186 especially unformatting errors and possible subsequent fatal
1189 o Changed ske->x and ske->KEY to mallocated pointers in
1190 lib/silcske/silcske.h. Fixed possible data and memory leak.
1192 o Added return value checking to all *_parse* functions. Fixed
1193 many memory leaks as well.
1195 o Added length argument to silc_id_str2id in lib/silccore/id.[ch]
1196 so that buffer overflows would not happen. All code now also
1197 checks the return value as it can fail.
1199 Mon Feb 5 20:08:30 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1201 * Added reconnection support to server if the normal server looses
1202 its connection to the router (for example if router is rebooted).
1203 The server performs normal reconnection strategy implemented
1204 to the server. Affected file silcd/server.c.
1206 Sun Feb 4 13:18:32 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1208 * Added new packet type SILC_PACKET_SET_MODE that is used to
1209 distribute the information about changed modes (for clients,
1210 channels and clients channel modes) to all routers in the
1211 network. Updated the protocol specification accordingly.
1213 Added functions into silcd/packet_send.c and
1214 silcd/packet_receive.c: silc_server_send_set_mode,
1215 silc_server_set_mode.
1217 Added new files silcmode.[ch] into lib/silccore that implements
1218 the encoding and decoding of Set Mode Payload. Added new type
1219 SilcSetModePayload. Moved the definitions of different modes
1220 from lib/silccore/silcchannel.h into lib/silccore/silcmode.h.
1222 Sat Feb 3 15:44:54 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1224 * Oops, a little mistake in server's connection authentication
1225 protocol. The protocol is not ended with FAILURE but with
1226 SUCCESS if the authentication is Ok. :) Affected file is
1229 * Implemented NICK_CHANGE notify handling in server in the file
1230 silcd/packet_receive.c The NICK_CHANGE notify is distributed to
1231 the local clients on the channel. After the changing nickname
1232 in router environment snhould work and the [<unknown>] nickname
1233 should appear no more.
1235 The silc_server_replace_id function that receives the Replace ID
1236 payload now sends the NICK_CHANGE notify type also in the file
1237 silcd/packet_receive.c
1239 * Changed WHOIS and IDENTIFY command to support the maximum amount
1240 of arguments defined in protocol specs (3328 arguments). This
1241 fixed a bug that caused problems when there were more than three
1244 Fri Feb 2 11:42:56 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1246 * Added extra parameter, command identifier, to the
1247 silc_client_send_command so that explicit command identifier
1250 Changed that ID list routines uses specific command identifier
1251 when sending WHOIS/IDENTIFY requests to the server so that they
1252 can be identified when the reply comes back.
1254 Affected files lib/silcclient/command.[ch],
1255 lib/silcclient/client.c and lib/silcclient/idlist.[ch].
1257 * Added `sender' argument to silc_server_packet_send_to_channel
1258 to indicaet the sender who originally sent the packet to us
1259 that we are now re-sending. Ignored if NULL. Affected file
1260 silcd/packet_send.[ch].
1262 * Added some server statistics support in silcd/server_internal.h
1263 SilcServerStatistics structure and around the server code. Also
1264 send some nice statistics information when client is connecting
1267 Thu Feb 1 23:31:21 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1269 * Fixed channel ID decoding in server's JOIN command reply in
1270 silcd/command_reply.c
1272 * Fixed braodcasting of replace ID payload to not to send it if
1273 we are standalone server in silcd/packet_receive.c.
1275 * Fixed all channel message sending routines to not to send
1276 packets to clients that has router set, since they are routed
1277 separately in the same function earlier. Affects file
1278 silcd/packet_send.c and all channel packet sending functions.
1280 * In USERS reply, res_argv[i] are not allocated, the table
1281 is allocated. Thus changed that free the table, not its
1284 * In server's whois_check and identify_check if the client is
1285 locally connected do not send any WHOIS commands - they are not
1288 Thu Feb 1 21:32:27 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1290 * Fixed some minor bugs in client when sending WHOIS command. The
1291 arguments was in wrong order.
1293 * Removed statis function add_to_channel from server in
1294 silcd/command.c that was previously used with the joining but
1297 * Tested USERS command in router environment successfully with two
1298 routers, two servers and two clients.
1300 Thu Feb 1 00:54:26 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1302 * Reorganized the USERS command and command reply in client library
1303 in lib/silcclient/command.c and lib/silcclient/command_reply.c.
1304 When the command is given by user we register a pending command
1305 callback that will reprocess the command after the reply has been
1306 received from the server. When reprocessing the packet we then
1307 display the information. Thus, the USERS information is displayed
1308 now in the command callback instead of in the command reply
1309 callback. The processing of the command is same as previously
1310 when server has sent the command reply in the JOINing process.
1312 * Added to USERS command in silcd/command_reply.c to join the client,
1313 we didn't use to know about, to the channel after we've created
1314 a client entry for it. Also, for clienet we did know already still
1315 check whether it is on the channel or not and add it if not.
1317 * Removed silc_server_command_join_notify as the function and its
1320 Tue Jan 30 22:39:15 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1322 * Changed the client's pending command handling to the same as the
1323 server's pending command handling. It is also now possible to
1324 execute command reply functions from other command reply
1325 function as the function callbacks for commands and command
1326 replies are one and same. The pending commands are not static
1327 list anymore, it is mallocated SilcDList in lib/silcclient/client.h
1328 in client connection context. Thus, pending commands are server
1329 connection specific as it is convenient.
1331 Changed the function silc_client_command_pending and
1332 silc_client_command_pending_del and added new function
1333 silc_client_command_pending_check. Removed the
1334 SILC_CLIENT_CMD_REPLY_EXEC, and SILC_CLIENT_PENDING_COMMAND_CHECK
1337 * Added cmd_ident, current command identifier, to the client
1338 connection context in lib/silcclient/client.h to keep track on
1339 command identifiers used in command sending. Client's command reply
1340 function handling now supports the mandatory command identifiers.
1342 * Added SILC_CLIENT_COMMAND_EXEC_PENDING macros to all command reply
1343 funtions in client to fully support pending command callbacks.
1345 * NOTE: the name_list in USERS (old NAMES) command is NOT sent anymore
1346 as one of the arguments to the application in the command reply
1349 * NOTE: The FORWARDED flag is depracated. It used to be depracated
1350 before first releasing SILC but came back. Now it is removed again
1351 and should come back nomore. The FORWARDED flag was used only
1352 by the JOINing procedure by forwarding the command packet to router.
1353 Now, the JOINing procedure has been changed to more generic (due
1354 to various router environment issues) and FORWARDED is not needed
1355 anymore for anything. The protocol specification is yet to be
1358 Now, removed silc_server_packet_forward from server and the flag
1359 SILC_PACKET_FORWARDED from lib/silccore/silcpacket.h.
1361 Tue Jan 30 00:05:05 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1363 * Renamed NAMES command to USERS command. The NAMES was named that
1364 due to historical reasons. Now it is renamed. Also, rewrote
1365 parts of the USERS command. The nickname list is not sent anymore
1366 by the server. Only Client ID and mode lists are sent in the USERS
1367 command. Changed this also to the protocol specification.
1369 The client now resolves the names and stuff after it receives
1370 the USERS list from the server when joining to the channel.
1372 * WHOIS and IDENTIFY commands has been changed to support multiple
1373 Client ID's per command. One can now search for multiple users
1374 in the network by sending only one WHOIS or IDENTIFY command.
1375 Changed the code and the protocol specifications.
1377 * Removed silc_server_command_identify_parse and changed that IDENTIFY
1378 uses silc_server_command_whois_parse to parse the request. */
1380 * If normal server, do not parse the WHOIS and IDENTIFY requests
1381 before sending it to the router. Saves some time.
1383 Sun Jan 28 16:19:49 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1385 * Fixed JOIN command on client library. Wrong number of arguments
1386 used to crash the client.
1388 * Added silc_server_channel_has_global function to check whether
1389 channel has global users or not.
1391 * Added silc_server_channel_has_local function to check whether channel
1392 has locally connected clients on the channel.
1394 * The silc_server_remove_from_one_channel now checks whether the
1395 channel has global users or not after given client was removed from
1396 the channel. It also checks whether the channel has local clients
1397 on the channel anymore. If it does not have then the channel entry
1398 is removed as it is not needed anymore.
1400 * The silc_server_notify now checks on JOIN notify whether the joining
1401 client is one of locally connected or global. If it is global then
1402 the channel has now global users on the channel and that is marked
1403 to the channel entry. Also, it now saves the global client to
1404 global list who is joining and JOINs it to the channel. This is
1405 for normal server, that is.
1407 Changed silc_server_send_notify_on_channel,
1408 silc_server_packet_relay_to_channel and
1409 silc_server_packet_send_to_channel check if we are normal server
1410 and client has router set (ie. global client) do not send the
1411 message to that client, as it is already routed to our router.
1413 * Implemented LEAVE notify type handling in silc_server_notify
1416 * Tested LEAVE command in router environment successfully. Tested
1417 with two routers, two servers and two clients.
1421 * idlist_find_xxx_by_id routines now dumps the ID on the debug mode.
1423 * Implemented SIGNOFF notify type handling in silc_server_notify
1426 * silc_server_remove_id now removes the client entry from all channels
1427 it has joined and thusly sends SIGNOFF notify type.
1429 * Rewrote the NAMES list generation in server by removing two excess
1430 loops. The lists are created now inside one loop.
1432 Sat Jan 27 22:34:56 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1434 * silc_server_remove_channel_user checks now also global list
1435 for channel and client.
1437 * silc_server_new_channel_user checks now both local and global
1438 list for channel and client. Fixed a bug in client id decoding.
1439 Used to decode wrong buffer.
1441 * silc_server_channel_message checks now both local and global
1442 list for channel entry.
1444 * Tested channel joining (hence JOIN) in router environment
1445 successfully. Tested with two routers, two servers and two
1448 * Tested channel message sending in router environment successfully.
1450 Thu Jan 11 03:22:57 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1452 * Added silc_server_save_channel_key into server.[ch] to save the
1453 received channel key in Channel Key payload processing. It is
1454 also used in JOIN command reply handling.
1456 Equivalent function silc_client_save_channel_key added into
1457 client.[ch] into client library.
1459 * Changed JOIN command reply to send information whether the channel
1460 was created or not (is existing already) and the channel key
1461 payload. Changed protocol specs accordingly.
1463 * Fixed bugs in WHOIS and IDENTIFY command reply sending when
1464 the request was sent by ID and not by nickname. Crashed on
1467 Sat Dec 23 21:55:07 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1469 * Fixed a bug in Client library. IDENTIFY and WHOIS reply functions
1470 now correctly save the received data.
1472 * silc_server_free_sock_user_data now notifies routers in the
1473 network about entities leaving the network.
1475 At the same time implemented functions silc_server_remove_id
1476 and silc_server_send_remove_id to receive and send REMOVE_ID
1477 packets. The packet is used to notify routers in the network
1478 about leaving entities. The ID removed will become invalid in
1481 * Added function silc_idlist_del_server into server. Removes and
1482 free's server entry from ID list.
1484 * silc_server_private_message function now checks, if we are router,
1485 that the destination ID really is valid ID, naturally.
1487 * In router when NEW_ID packet is received (for new client) the
1488 hash of the Client ID is saved in the ID Cache but the
1489 client->nickname is set to NULL, instead of putting the hash
1492 IDENTIFY command now also checks that client->nickname must be
1493 valid. If it is not if will request the data from the server who
1494 owns the client. Added new function
1495 silc_server_command_identify_check.
1497 * Added silc_command_set_command into lib/silccore/silcommand.[ch]
1498 to set the command to already allocated Command Payload.
1500 * Tested private message sending in router environment with two
1501 routers, two servers and two clients. Fixed minor bugs and now
1504 * Fixed segfault from client's NAMES command. Used to crash if
1507 * Forwarded packets must not be routed even if it is not destined
1508 to the receiver. Changed server code comply with this.
1510 Sun Dec 17 14:40:08 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1512 * Added `require_reverse_mapping' boolean value to ServerParams
1513 structure. If TRUE (not default) the server will require that
1514 the connecting host has fully qualified domain name.
1516 If the reverse mapping is not required and hostname could not be
1517 found the IP address is used as hostname.
1519 Sat Dec 16 17:39:54 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1521 * Implemented version string checking to both client and server.
1522 The check is incomplete currently due to the abnormal version
1523 strings used in development version of SILC.
1525 * Changed all command functions in server to use the new
1528 Fri Dec 15 15:55:12 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1530 * Changed char *data to unsigned char *data in ID Cache system to
1531 support binary data as ID Cache data. Changed code to support
1532 binary data in lib/silccore/idcache.c.
1534 * Renamed silc_server_packet_relay_command_reply to
1535 silc_server_command_reply as it is normal packet receiving
1536 function. Rewrote the function to accept command replys for
1537 servers and not only for clients.
1539 * Mark remote router always as registered server if we are connecting
1540 to it. Otherwise, commands sent by the router to us are ignored.
1542 * All ID List find routines now returns the ID Cache Entry pointer
1543 as well if requested.
1545 * WHOIS command works now in router environment, tested with two
1546 routers, two servers and two clients.
1548 * Cleaned up and rewrote IDENTIFY command. IDENTIFY should work now
1549 in router environment (as it is almost equivalent to WHOIS) but
1550 hasn't been tested thoroughly. Added new functions:
1552 silc_server_command_identify_parse
1553 silc_server_command_identify_send_reply
1554 silc_server_command_identify_from_client
1555 silc_server_command_identify_from_server
1557 * Disabled route cache adding because adding two different ID's with
1558 same IP replaces the old cache entry thus giving wrong route.
1559 The entry->router->connection is always the fastest route anyway
1560 so route cache may not be needed. Of course, new routes maybe
1561 established after receiving the ID when the entry->router->connection
1562 might not be anymore the most optimal.
1564 Thu Dec 14 15:55:35 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1566 * Add route cache for received ID for fast routing.
1568 * Added silc_server_packet_route to route received packet on router
1569 that is not destined to us.
1571 * Renamed silc_server_get_route to silc_server_route_get.
1573 * Added id_string and id_string_len fields into SilcServer to
1574 include encoded ServerID for fast comparing without excess
1575 encoding of the ID's.
1577 * Cleaned up WHOIS command on server side. Added following static
1580 silc_server_command_whois_parse
1581 silc_server_command_whois_check
1582 silc_server_command_whois_send_reply
1583 silc_server_command_whois_from_client
1584 silc_server_command_whois_from_server
1586 * Added macro SILC_SERVER_COMMAND_CHECK_ARGC to check mandatory
1587 arguments in command replies. All command functions should be
1588 updated to use this macro.
1590 Sun Dec 10 23:52:00 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1592 * Minor typo fixes on command reply handling on server.
1594 Tue Nov 28 11:05:39 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1596 * Added silc_server_command_add_to_channel internal routine to add
1597 the client to the channel after router has created the channel and
1598 sent command reply to the server.
1600 * Added generic silc_server_send_command to send any command from
1603 * Use static buffer with ID rendering instead of duplicating data.
1605 Mon Nov 27 21:39:40 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1607 * Fixed a channel user mode bug when joining to a channel server gave
1608 everybody channel founder rights, oops.
1610 * We mark ourselves as the router of the incoming server connection
1611 if we are router ourselves. This way we can check in some packet
1612 sending functions whether it is locally connected server. For
1613 incoming router connections we put NULL.
1615 * For router sending packets locally means now always sending the
1616 packet cell wide; to local clients and local servers. For normal
1617 server sending packet locally means sending it to only local
1620 * Fixed the JOIN command to really work in router environment. If the
1621 channel is created it is always created by the router. Router is
1622 also responsible of making the initial joining to the channel,
1623 sending JOIN notify to the sending server and distributing
1624 NEW_CHANNEL and NEW_CHANNEL_USER packets. Hence, if the channel
1625 does not exist server doesn't do anything else but forward the
1626 command to the router which performs everything.
1628 * Added silc_server_send_channel_key function to send the Channel Key
1631 * Added silc_server_create_channel_key to create new channel key. The
1632 channel key is now re-generated everytime someone joins or leaves
1633 a channel, as protocol dictates. Note: channel->key_len is the
1636 Wed Nov 22 22:14:19 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1638 * Splitted server.[ch] finally. Created now packet_send.[ch] and
1639 packet_receive.[ch] to separate packet sending and receiving
1640 routines. The server.[ch] now includes everything else including
1641 actual packet processing (writing and reading data) and other
1644 Renamed silc_server_private_message_send_internal to
1645 silc_server_send_private_message. The routine is still though
1646 used only to relay private messages as server does not send
1647 private messages itself.
1649 Renamed silc_server_new_channel to silc_server_create_new_channel
1650 and added new function sicl_server_new_channel that handles the
1651 incoming New Channel packet. Added also new sending function
1652 silc_server_send_new_channel to send New Channel Payload.
1654 * Added new function silc_server_notify to process incoming notify
1655 packet to the server/router. Server may then relay the notify
1656 to clients if needed.
1658 * Added new function silc_server_new_channel_user to process incoming
1659 New Channel User packet. Router will redistribute the packet and
1660 send JOIN notify to its local clients and locally connected servers
1661 if needed. Normal server will send JOIN notify to its local client
1662 on same channel when received this packet. Added also corresponding
1663 sending function silc_server_send_new_channel_user to sent the
1666 * Added boolean route argument to send_notif_to_channel and
1667 packet_send_to_channel functions to attempt to route the packet
1668 if it is TRUE and send only locally if it is FALSE.
1670 Tue Nov 21 19:49:31 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1672 * silc_server_replace_id now broadcasts the received replace ID
1673 packet if it is not broadcast packet already. The router must
1674 broadcast to inform other routers about changed ID.
1676 * Added backpointer to server's router into SilcServer context in
1677 silcd/server_internal.h.
1679 * Fixed silc_server_packet_broadcast to send correct broadcast
1682 * The channel key is now distributed to the local client as soon
1683 as it is received from the router (in router environment) so that
1684 no other packet may be sent for the channel until client has
1687 * silc_server_remove_channel_user now broadcasts the received
1688 Remove Channel User packet if it is not broadcast packet already.
1689 The router must broadcast to inform other routers about removed
1692 * Added users field into SilcPacketContext that is a reference count
1693 of the context. One can increase the reference count by calling
1694 silc_packet_context_dup which is now changed to just increase the
1695 reference count instead of duplicating the data. The reference
1696 count is decresed by calling silc_packet_context_free that will
1697 free the data after the reference count hits zero.
1699 For now on the packet context and everything allocated into it
1700 (including the raw packet from network) must be freed by calling
1701 the new silc_packet_context_free function. Added also new function
1702 silc_packet_context_alloc that must be used now to allocate the
1703 context. This also means that if a routine is asynchronous from
1704 silc_[client/server]_packet_parse_type the packet context must
1705 be duplicated by calling silc_packet_context_dup. Otherwise it
1706 gets free'd after silc_[client/server]_packet_parse_type returns.
1707 Also, one must remember that if packet is duplicated then its
1708 reference count must be decresed by calling the free function as
1709 many times as it was duplicated.
1711 * Changed SilcBuffer field from protocol contexts to SilcPacketContext
1712 from both client and server.
1714 Mon Nov 20 23:47:03 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1716 * Made joining to a channel working in router environment.
1718 * Cleaned up JOIN command on server side and create function
1719 silc_server_command_join_channel internal routine to make the
1722 Thu Nov 9 21:12:39 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1724 * Changed silc_command_pending list to SilcDList. Also, added
1725 `ident' field to SilcServerCommandPending structure to identify
1726 the reply and to call correct callback.
1728 Added silc_server_command_pending_check function to replace the
1729 corresnponding macro. The silc_command_pending list is not
1732 * Added silc_command_set_ident into lib/silccore/silccommand.[ch]
1733 to set identifier to previously allocated Command Payload. It
1734 is used to set identifier for command when resending Command
1737 * Added silc_command_payload_encode_payload to encode Command
1738 Payload buffer from SilcCommandPayload structure.
1740 * Added silc_argument_payload_encode_payload to encode Argument
1741 payload buffer from SilcArgumentPayload structure.
1743 Wed Nov 8 21:03:28 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1745 * Changed WHOIS command to support router connection on server side.
1746 The whois request is always sent to router unless the server is
1747 standalone server. After server has received the reply from the
1748 router will it send the reply to the client.
1750 * Added silc_server_packet_broadcast into silcd/server.[ch] to
1751 broadcast received broadcast packet. The function is used only
1752 by router. The broadcast packet is always sent to the router's
1755 * Added silc_id_render function in lib/silcutil/silcutil.[ch] to
1756 render given ID to printable string, for log files for example.
1758 Tue Nov 7 22:14:19 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1760 * Made basic router to router connections working. At least they
1761 can now connect to each other but nothing really works the way
1762 they are supposed - yet.
1764 * Added new initiator token to RouterConnection configuration
1765 file in silcd/serverconfig.[ch]. It is used to tell whether we
1766 are the initiator to the remote router or whether we'll expect
1767 the other end to connect.
1769 * Moved registering of listener task to silc_server_init, hence
1770 the server starts listenning as soon as it is run, even if it
1771 does not have connections to other routers. Let's see how well
1774 * Changed default connection retry timeouts for more suitable in
1777 * Removed cipher and such arguments from silc_idlist_add_client
1778 and silc_idlist_add_server prototypes from silcd/idlist.[ch].
1779 Added new function silc_idlist_add_data to add the keys and stuff
1782 * Added SilcIDListData structure and added it to SilcClientEntry
1783 and SilcServerEntry as their first field in the structure. This
1784 way we can explicitly cast the ID entries to the SilcIDListData
1785 structure and get common data for the entries. In past, we had
1786 to first check what type of connection it is and then cast it to
1787 correct ID entry type. Now, we can directly cast the opaque
1788 pointer to the SilcIDListData (no matter what ID entry it actually
1789 is) and get the data needed.
1791 Mon Nov 6 21:56:12 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1793 * Wow, found a bug in scheduler. The scheduler uninitialized itself
1794 in some circumstances even if threre were timeout tasks, though not
1795 IO tasks, but tasks anyway. Now fixed.
1797 * Defined SilcServerConnection structure to hold connection specific
1798 stuff about directly connected servers and routers. The definition
1799 is currently in silcd/server_internal.h. I thought about having
1800 a bit more important role fro this struct but for now it is used
1801 only when connecting to other server (or router actually).
1803 * Added connecting retry support in server when connecting to
1804 router(s). The retry feature implement exponential backoff
1805 algorithm. Also, added SilcServerParams structure to hold default
1806 parameters for server. For now, it include these retry settings
1807 and are hard coded. After server is moded to be as Silc Server
1808 Library this structure will be more important.
1810 Sun Nov 5 22:28:44 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1812 * Changed client librarys channel->clients table to SilcList and
1813 changed code accordingly.
1815 Thu Nov 2 16:28:01 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1817 * Changed client's channel table to SilcList and changed code
1818 accordingly. Also changed SilcChannelClientEntry to include back-
1819 pointer to the channel so that client entry can use that structure
1820 as list as well and we have fast cross-reference to the channel.
1821 This change dramatically decreased the complexity of channel
1822 handling with client entry and vice versa (removed one extra
1823 loop when searching for channel entry from many functions).
1825 * Changed server->sim from table to SilcDList and changed code
1828 * NAMES command can now be used from user interface. It will show
1829 the user list on the channel, neatly.
1831 * Added realname pointer to SilcClientEntry in lib/silcclient/idlist.h.
1832 Code now saves realname of the user if it becomes available.
1834 * Renamed configure.in to configure.in.pre and made ./prepare
1835 script to automatically add correct version string to
1836 configure.in which it creates from configure.in.pre.
1838 Wed Nov 1 17:21:26 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1840 * NAMES command reply now shows users mode with the nickname when
1843 * Moved silc_client_ch[u]mode[_char] functions from
1844 silc/clientutil.[ch] to lib/silcclient/client.[ch]. Though, that
1845 place sucks, they are utility functions and should be in some
1848 * Fixed some unsigned int's to unsigned short's. Patch by cras.
1850 * Fixed contrib/getopt*.[ch] to not require config.h. Patch by
1853 Tue Oct 31 20:10:37 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1857 * Added TRQ (efficient deque and list library) into lib/trq. This is
1858 a very good list library that is currently used in the SILC. Defined
1859 SilcList API over the library because I didn't like the API very
1860 much. See lib/trq/silclist.h for the API and examples of how to
1861 use the API. Fixed various places in the code to use the new
1862 SilcList API. The SilcList is meant for lists that has a structure
1863 already defined as a list. It is not suitable to add just some
1864 context to the list (in TRQ, the context is the list actually).
1866 So, I defined SilcDList that can be used for the purpose where
1867 predefined list structure does not exit. This can be used as
1868 such list. Now some context just can be added to the SilcDList.
1869 Currently this list is not used in the SILC just yet, though there
1870 are a lot places where this can replace dynamically allocated
1871 tables and I will fix these places, later, to use SilcDList.
1872 See lib/trq/silcdlist.h for SilcDList (they are all inline functions,
1873 and use TRQ internally).
1875 Also fixed some annoying warning messages that the original TRQ
1876 code generated. Also minor changes to TRQ's Makefile.in.
1878 * Added support for querying by Client ID to both WHOIS and
1879 IDENTIFY commands into server, as required by the protocol.
1881 * Removed method function pointers from SilcBuffer structure. They
1882 weren't used to anything and just increased the context size for
1883 no good reason. This change also made silc_buffer_alloc and
1884 silc_buffer_free functions inline functions.
1886 * Disabled command flooding detection support until it's fixed so
1887 that it accepts commands in but does not execute them more than once
1890 * Added silc_net_localhost(), to return local hostname, into
1891 lib/silcutil/silcnet.[ch]. Also added client->hostname pointer
1892 that must be initialized before calling silc_client_init.
1894 * Added new function: silc_server_send_notify_on_channels to send
1895 notify messages to all channels client has joined. It is assured
1896 that the message is sent only once per client.
1898 * Moved silc_log_format (from lib/silcutil/silclog.[ch] into
1899 lib/silcutil/silcutil.[ch] as silc_format function. The new
1900 function is generic and is used by server as well, not only by
1901 the logging routines.
1903 * Added new SKE status type: SILC_SKE_STATUS_BAD_VERSION to indicate
1904 the provided version string was not acceptable. Added new function:
1905 silc_ske_check_version into lib/silcske/silcske.h. The function
1906 must be implemented by the application (client or server) and it
1907 does not reside in the SKE library. The function checks the version
1908 string remote end sent.
1910 * Added back pointers (to opaque context and to SilcSocketConnection)
1911 into SilcPacketContext structure into lib/silccore/silcpacket.h.
1913 * Added silc_packet_context_dup into lib/silccore/silcpacket.[ch] to
1914 duplicate packet context structure.
1916 * Changed `notify' client operation to send same arguments as client
1917 receives from server except for ID's. ID's are mapped to correct
1918 ID entry and that is returned. Also, if channel entry is not sent
1919 by server but the notify is for channel the channel entry is sent
1920 to application (otherwise application doesn't know that it is for
1921 channel (library gets it from packet's Destination ID)).
1923 * Added silc_client_remove_from_channels into client library to
1924 remove a client from all channels it has joined to. Used when
1925 received SIGNOFF notify from server. Added also new function
1926 silc_client_replace_from_channels to replace old ID entry with
1927 new ID entry on all channels. Used when received NICK_CHANGE
1930 * Fixed ID Cache list handling in silc_idlist_get_client in
1931 lib/silcclient/idlist.c. Also, added silc_idlist_get_client_by_id
1932 to get (or query) client by ID.
1934 * Updated TODO list.
1936 * Added connection authentication status message defined by the
1937 protocol: SILC_CONN_AUTH_OK and SILC_CONN_AUTH_FAILED and added the
1938 support for these into the code in client and server side.
1940 * Added generic function silc_client_send_command to send any command
1941 with variable argument list. Application should use this function
1942 to send commands if the command functions provided by the library
1943 does not suite for the application's user interface needs.
1945 * Added new `failure' client operation. Application is notified about
1946 received failure packet if client is executing a protocol. In this
1947 case the protocol's execution has failed.
1949 * Added SKE's end notify to send the SKE_SUCCESS notify message that
1950 is required by the protocol.
1952 * Added SILC_PROTOCOL_STATE_FAILURE to indicate received failure
1953 packet from remote. SILC_PROTOCOL_STATE_ERROR indicates local
1956 * Added status flag to SilcSKE object to indicate realtime status
1957 of the SKE protocol.
1959 * Application receives now exactly same command reply arguments as
1960 the library receives from server. However, if ID is received the
1961 corresponding ID entry is returned to the application (eg. Client
1962 ID is mapped to correct SilcClientEntry entry and that is returned).
1963 Changed command_reply client operation due to this change.
1965 * Changed all ID's in commands and in command replys as ID Payloads.
1966 Change affected both client and server side codes.
1968 All ID's sent in SILC network (with execption of ID's in SILC
1969 Packet header) are sent in ID Payload to support variable length
1972 * Server now notifies nick changes and notifies all clients on
1973 the channels about the new nickname (about the new Client ID,
1976 * Implemented CMODE command to change channel modes. Supports all
1977 channel modes defined by the protocol specs except ban and invite
1978 lists. (Also, private channel key mode is supported but support for
1979 setting private channel key in client is missing, thus, this mode
1980 has no effect on client side (except that server requires that the
1981 client uses private channel key and normal channel traffic does not
1984 Also, invite mode works per se, but INVITE command does not work
1985 yet correctly, so you can set channel as invite only channel but
1986 inviting clients to the channel does not work (it is yet to be
1987 thought what's the best way to do it).
1989 * Added new command SILC_COMMAND_CUMODE to change user mode on the
1990 channel. Defined user modes: CHANNEL_FOUNDER and CHANNEL_OPERATOR.
1991 Implemented CUMODE command to change user's mode on the channel.
1992 Supports all modes defined by the protocol specs.
1994 * Added NAMES command reply to return users modes on the channel.
1996 * Removed unnecessary and slow ciphers from lib/silccrypt.
1998 * Set SO_KEEPALIVE option to connection sockets by default.
2000 * Added new command reply status: SILC_STATUS_USER_NOT_ON_CHANNEL.
2002 * Added notify types: MOTD, CMODE_CHANGE and CUMODE_CHANGE. Also,
2003 redefined the Notify Payload into protocol specs.
2005 * Added silc_id_payload_parse_id to get ID directly from raw
2008 Mon Oct 9 20:57:02 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2010 * Changed SILC_COMMAND_IDENTIFY in protocol specification to
2011 accept searching by Client ID as well.
2013 * Added support for LEAVE and SIGNOFF notify types in client library.
2015 * Added silc_id_payload_parse_data into lib/silccore/silcpayload.[ch]
2016 to parse ID Payload from raw data.
2018 Sun Oct 8 19:33:08 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2020 * Added flags parameter into silc_ske_assemble_security_properties
2021 function in lib/silcske/silcske.[ch].
2023 * Changed notify client operation to fit better for notify messages
2024 sent by server. The notify payload received from server is now
2025 passed to the application (after parsing it to SilcNotifyPayload).
2026 It is application's responsibility to retrieve the arguments
2027 from the payload and show the message the way it wants. The message
2028 sent by server is implementation specific.
2030 * Changed public keys to comply with the protocol specification.
2031 Old public keys are not supported anymore and are not compatible.
2033 * Removed nickname from Channel Payload as the latest draft removed
2034 it. The client must resolve the nickname from the NAMES command
2035 reply received when it joined the channel.
2037 Also, changed all channel_xxxx_payload to channel_payload_xxxx.
2039 Sat Oct 7 21:55:01 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2041 * Fixed some errors in protocol specification drafts.
2043 * Created lib/silccore/silcnotify.c to implement Notify Payload
2044 encoding and decoding, lib/silccore/silcpayload.[ch] to implement
2045 generic payloads described by protocol specifications. The file
2046 includes implementations for ID Payload and Argument Payload.
2048 * Changed Command Payload implementation to use the new Argument
2049 Payload. Changed command_xxxx_payload to command_payload_xxxx
2050 to comply with SILC coding conventions.
2052 * Added suppport for Argument Payload handling in Notify Payload
2053 implementation as protocol requires it. Added the new support
2054 into server and client lib as well.
2056 Thu Oct 5 21:16:28 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2058 * Added support for multiple nicknames on same channel. [n] is
2059 added locally to the nickname if there are more than one same
2060 nicknames on the channel.
2062 * Server now sends all nicknames that matched WHOIS request.
2063 Client also shows the list received from server.
2065 * Added TOPIC command to client side. User can now set and show
2066 current topic on channel.
2068 * Added MOTD command to client and server. Also, server sends the
2069 motd when client connects to the server.
2071 * Changed version strings to comply ISO 8601.
2073 Wed Oct 4 23:29:06 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2075 * Fixed protocol error handling in client library. It should now
2076 cope even if the SKE fails for some reason.
2078 * Made new protocol specification drafts for submitting to IETF.
2080 * Implemented TOPIC command to server in silcd/command.c.
2082 * Added two new notify types into lib/silccore/silcnotify.h:
2083 SILC_NOTIFY_TYPE_NICK_CHANGE and SILC_NOTIFY_TYPE_TOPIC_SET to
2084 notify nickname change and topic setting/change on a channel.
2086 * API change of command_reply operation in client library. The
2087 application gets now the status type received from server as well.
2089 Sat Sep 30 16:57:42 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2091 * Removed the function just added to lib/silcutil/silcschedule.[ch].
2093 * Cras fixed and optimized the packet handling even further and
2094 it should work now. Minor change to the prototype of function
2095 silc_packet_receive_process in lib/silccore/silcpacket.[ch].
2097 Sat Sep 30 08:48:47 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2099 * Added new function into lib/silcutil/silcschedule.[ch]:
2100 silc_schedule_with_fd to select() a specified fd. The function
2101 returns after timeout expires or data arrives or goes. The
2102 function is used by packet routines to wait that all data is
2103 received from network.
2105 * Fixed data reading from network in lib/silccore/silcpacket.c.
2106 The code now assures that all data is read from the fd and then
2107 continues packet processing. This was a bug fix since the code
2108 used to drop some data in some circumstances.
2110 * Added new function into lib/silcclient/client.[ch]:
2111 silc_client_start_key_exchange to start key exchange after
2112 connection has been established to server. The code internally
2113 now uses this funtion but its main purpose was to provide it
2114 for applications that perform their own connecting. After
2115 application has created a connection it merely calls this
2116 function to start the key exchange between client and server.
2117 The library takes care of everything else after that.
2119 Updated also lib/silcclient/README to explain the usage of
2122 * Do not send to application information that connection has
2123 been established. Application gets notified it by connect
2126 Thu Sep 28 23:40:19 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2128 * Applied cras's patch to add silc_schedule_one function. The
2129 function runs scheduler once and returns.
2131 * Fixed the scheduler after cras messed it up. The timeout
2132 handling works now as it's supposed to work.
2134 * Added into lib/silccore/ silcnotify.h to include notify
2135 message types support. Changed silc_server_send_notify*
2136 functions, in server.[ch], to support those new notify types.
2137 Added the support for the notify types into client library,
2138 as well. Added new notify client operation into ops.h in
2141 * Changed silc_server_packet_send_to_channel to send normal
2142 packets instead of just channel message packets. The function
2143 is now used to send the notify packets to channels. It is not
2144 used to send channel message packets anymore, as server never
2147 * Added explicit casting into lib/silcutil/silcbuffmt.c to few
2148 va_arg()s as it seems to require it nowadays. I guess, if SILC
2149 is compiled with older va_arg() the new code should work anyway.
2151 Wed Sep 13 18:10:14 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2153 * Splitted core library. Core library (lib/silccore) includes
2154 now only SILC protocol specific core (and common) components.
2155 Created new utility library (lib/silcutil) that includes more
2156 generic purpose stuff. The stuff for util library was taken
2157 from the old core library. This was minor and easy split.
2159 * Created SILC Client Library (lib/silcclient) that includes
2160 implementation of the SILC client without user interface. This
2161 was major move from silc/ directory. The code has been changed
2162 so that it is transparent towards the user interface. The
2163 silc/ directory includes now the same user interface as before
2164 and it uses the new client library. Read lib/silcclient/README.
2165 Basicly, the client library performs everything else related
2166 to SILC except user interface handling. Also, configuration
2167 files are considered to be part of user interface and library
2168 does not handle them.
2170 This change also changed a lot of structures, function naming etc.
2171 Most important change was that SilcClientWindow object was
2172 renamed to SilcClientConnection in the client library. Created
2173 also new file lib/silcclient/ops.h. Also added new files
2174 silc/local_command.[ch] and silc/client_ops.[ch].
2176 All these changes were made to make it easier for user interface
2177 designers to create what ever user interface for the SILC client
2180 It is also expected that the server will be moved to lib
2181 directory as well and SILC Server Library will be created;
2182 sometimes in the future.
2184 * Removed Local commands from lib/silccore/silccommand.h as
2185 they are application specific and new client library does not
2186 handle any of those anymore.
2188 * Several functions moved to lib/silcutil/silcutilc.[ch] from
2189 old client implementation in silc/.
2191 * Added support for callback functions in SILC_LOG_* macros.
2192 Application can now set its own callbacks that will be called
2193 instead of using the default functions that will always print
2194 the debug messages to stderr (or stdout). Also, debugging can
2195 now be disabled by setting silc_debug to FALSE and re-enabled by
2196 setting it to TRUE. Note, that logging will still work even
2197 if debugging is disabled.
2199 New functions in lib/silcutil/silclog.[ch]: silc_log_set_callbacks,
2200 silc_log_reset_callbacks, silc_log_set_debug_callbacks and
2201 silc_log_reset_debug_callbacks.
2203 * To enable debugging in silc client one must give now -d
2204 option on command line.
2206 * Changed silc_schedule_init to automatically allocate task queues
2207 if they are not allocated before calling it.
2209 Thu Sep 7 10:49:33 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2211 * Added GMP 3.1 into math library.
2213 Sun Aug 20 21:27:26 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2215 * Added SILC_PACKET_REMOVE_CHANNEL_USER to remove a client from
2216 a channel in SILC network. The packet is used by servers and
2217 routers to notify other routers that user has left a channel.
2218 This little feature was missing until now. Added the feature
2219 to protocol specification as well.
2221 Added functions: silc_server_send_remove_channel_user and
2222 silc_server_remove_channel_user into server.[ch].
2224 * Added SILC_PACKET_REKEY and SILC_PACKET_REKEY_DONE into
2225 lib/silccore/silcpacket.h. However, they are not implemented
2228 Sat Aug 19 23:04:16 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2230 * Fixed joining to a channel and sending channel messages
2231 between server and router. The channel message sending should
2232 now work inside a cell.
2234 Tue Jul 25 20:46:13 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2236 * Fixed the private message sending between server and router.
2237 The private message sending should now work inside a cell.
2239 * Added silc_server_replace_id into server.[ch] to replace
2240 existing ID in the SILC network.
2242 * Added silc_idlist_find_server_by, silc_idlist_replace_client_id
2243 and silc_idlist_replace_server_id into idlist.[ch] in server.
2245 Mon Jul 24 18:33:31 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2247 * Fixed the server to server connections. Server can again now
2248 connect to router. Router to router connections probably does
2251 Thu Jul 20 13:15:01 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2253 * Added dynamic protocol registering support. Now protocols can
2254 registered and unregistered on the fly. Patch by cras.
2256 Wed Jul 19 19:08:46 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2258 * Added lib/contrib directory to hold routines that some platforms
2259 don't have but are needed by SILC.
2261 * Added getopt.c, getopt1.c and getopt.h from GNU C library
2262 into lin/contrib to provide getopt() and getopt_long() for
2263 those who don't have it.
2265 Tue Jul 18 20:41:20 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2267 * Added AWAY command to client. When away message is set and
2268 client receives a private message packet the client automatically
2269 replies to the sender with the away message.
2271 * Fixed a bug in lib/silcmath/mpbin.c: silc_mp_mp2bin. This
2272 bug seemed to be the cause of recent problems when compiling
2275 * Added version detection support to SKE protocol specification
2276 and added the new changes to the SKE implementation as well.
2277 There were other minor changes in the SKE protocol as well.
2279 Many changes in lib/silcske/silcske.[ch] and in
2280 lib/silcske/payload.[ch].
2282 * Added ^U functionality, clear input line. Patch from cras.
2284 Mon Jul 17 23:33:26 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2286 * Mainly small bugfixes on core library. Fixed some debugging
2287 logging and buffer overflow in silclog.c.
2289 * Updated config.sub and config.guess on the distribution tree.
2291 Sat Jul 15 15:33:48 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2293 * Added command lagging support in server. Client may execute
2294 commands now only once in two seconds.
2296 Thu Jul 13 22:10:21 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2298 * Optimized packet reception. MAC computation and checking is now
2299 also more optimized. A lot previously duplicated code is now
2300 used as generic by both client and server.
2302 * Fixed key pair generation in clientutil.c
2304 Wed Jul 12 18:28:07 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2306 * Added into lib/silccore/silcbufutil.[ch] new function;
2307 silc_buffer_realloc.
2309 * Moved generic packet sending/encryption functions to
2310 lib/silccore/silcpacket.[ch] from client and server. Some
2311 rewriting of the functions.
2313 * Moved all generic packet reception/decryption functions to
2314 lib/silccore/silcpacket.[ch] from client and server. The
2315 packet processing is now much cleaner in both client and server.
2316 These were major changes in both client and server.
2318 * Created many common functions in server to do packet sending.
2319 Previously code were duplicated a lot, this has been removed
2322 Tue Jul 11 20:27:26 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2324 * Rewrote major parts of the ID cache system. Don't know
2325 whether it is better now or not but at least the API is more
2328 * Major rewrite on ID cache stuff on client because of the ID
2329 cache API changes. Added idlist.c to client.
2331 * Also major rewrite on ID cache stuff on server as well.
2332 Major rewrite of idlist.[ch]. SilcXXXList's are now named
2333 SilcXXXEntry's. We won't keep anymore idlist specific pointers
2334 in hand, instead they are all put into the ID cache system now.
2335 All server_idlist_* routines uses ID cache now instead of
2336 traversing its own lists (those lists does not exist anymore).
2337 SilcIDList though still exists. Also, SilcXXXEntry's are
2340 Sun Jul 9 15:19:24 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2342 * Finally made the SKE implementation compliant to the protocol
2343 specification. All mp integers are now binary encoded as
2344 opposed being HEX encoded.
2346 * Added lib/silcmath/mpbin.[ch]. Encoding mp intergers to and
2349 * Added into lib/silccore/silcutil.[ch] PEM encoding/decoding
2350 functions: silc_[encode/decode]_pem. Also added function
2351 silc_encode_pem_file to PEM encode with newlines ('\n') for
2354 * SILC public keys are now encoded either PEM or binary. Same
2355 option is for private keys as well. By default private keys
2356 are binary encoded and public keys PEM encoded. Silly HEX
2357 encoding were removed.
2359 * Added into lib/silccrypt/silchash.[ch] silc_hash_fingerprint
2360 function to create fingerprints.
2362 * Fixed a bug in SHA1; does not change the original data anymore.
2364 * Partly implemented INFO command on client and server side.
2365 Fixed CLEAR command. Changes to SERVER command; show current
2366 server(s) when giving command without arguments. Added
2367 VERSION command to client.
2369 * Added check to server that unregistered connections cannot
2370 execute commands (unless it is specificly allowed).
2372 Thu Jul 6 18:12:24 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2374 * Fixed screen refresh.
2376 * Fixed channel joining bug from client. On some circumstances
2377 client tried to join to a channel it had already joined.
2379 * Added public key verification process into client's protocol.c.
2380 The client now verifies the public key from user and saves
2381 it into ~./silc/serverkeys/ directory.
2383 Added into: clientutil.[ch]: silc_client_verify_server_key.
2385 * Changed SKE protocol's silc_ske_initiator_finish function
2386 to accept callback function that verifies the received public
2387 key. Removed old silc_ske_verify_public_key function.
2389 Wed Jul 5 19:19:02 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2391 * Added into silcpkcs[ch]: silc_pkcs_public_key[_data]_set and
2392 silc_pkcs_private_key[_data]_set.
2394 * Made the password and public authentication more cleaner in
2395 server's protocol.c.
2397 * Removed historic and obsolete protocol `channel_auth' from
2398 both client and server.
2400 * Removed wrong way of sending command status messages from
2401 server to client in server's command.c. The old way violated
2402 protocol specification.
2404 Changes to silccore/silccommand.[ch]: removed
2405 silc_command_encode_status_payload -> not needed anymore,
2406 changed silc_command_encode_payload_va to accept extra
2407 argument on variable argument list. The argument type must
2408 now be provided to the function. Also, added new function:
2409 silc_command_encode_reply_payload_va which is same as
2410 normal command_encode_payload_va except command status type
2411 is provided as extra argument.
2413 Tue Jul 4 18:26:39 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2415 * Added ~./silc directory handling. The directory includes the
2416 public and private keys for the client.
2418 Added silc_client_check_silc_dir, silc_client_create_identifier
2419 and silc_client_load_keys.
2421 * Implemented SILC protocol compliant public key. Added public
2422 and private key saving to and loading from files.
2424 Added into silcpkcs.[ch]: silc_pkcs_encode_identifier,
2425 silc_pkcs_public_key_encode[_data], silc_pkcs_public_key_decode,
2426 silc_pkcs_private_key_encode[_data], silc_pkcs_private_key_decode,
2427 silc_pkcs_public_key_alloc, silc_pkcs_public_key_free,
2428 silc_pkcs_private_key_alloc and silc_pkcs_private_key_free.
2430 Implemented: silc_pkcs_save_[public/private]_key[_data] and
2431 silc_pkcs_load_[public/private]_key.
2433 Mon Jul 3 18:51:27 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2435 * Added silc_server_get_route (route.[ch]) to get connection
2436 data for the fastest route for given ID.
2438 * Implemented INVITE command on client and server. The command
2439 were re-defined in the SILC Protocol Specification and the
2440 implementation now complies with the specification.
2442 * Implemented PING command on client and server.
2444 * Implemented NAMES command on client and server. The server side
2445 supports currently only normal server not router server yet.
2446 Some changes to NAMES definition in SILC protocol specification.
2448 Sun Jul 2 18:23:01 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2450 * Implemented LEAVE command on client and server.
2452 * Previously deprecated SILC_PACKET_FORWARDED flag is now in use
2453 again. This change was made to the protocol as well. Server
2454 should not violate the protocol specification anymore.
2456 Fri Jun 30 14:03:26 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2458 * Added SOCKS4 and SOCKS5 support to SILC client. SOCKS5
2459 was tested. SOCKS4 was not but should work anyway.
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