1 Tue Mar 13 22:17:34 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
3 * Added new argument to the WHOWAS command reply, the real name.
4 It is an optional argument. Updated the protocol specs.
6 * Added SilcIDCacheDestructor callback that is registered when
7 the SilcIDCache is allocated. The callback is called when
8 an cache entry in the ID Cache expires, or is purged from the
9 cache. Added into lib/silccore/idcache.[ch].
11 Added silc_idlist_client_destructor to the silcd/idlist.[ch]
12 to destruct the client entries when the cache entry expires.
13 Other ID Cache's in server and in the client library ignores
16 * If the ID Cache entry's `expire' field is zero then the entry
17 never expires. Added boolean `expire' argument to the
18 silc_idcache_add function in the lib/silccore/idcache.[ch].
19 If it is TRUE the default expiry value is used.
21 * Added silc_server_free_client_data_timeout that is registered
22 when client disconnects. By default for 5 minutes we preserve
23 the client entry for history - for WHOWAS command.
25 Tue Mar 13 13:26:18 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
27 * Added support to the server to enforce that commands are not
28 executed more than once in 2 seconds. If server receives
29 commands from client more frequently, timeout is registered
30 to process the commands. Affected file silcd/command.c.
31 Added new function silc_server_command_process_timeout.
33 * Changed NICK_NOTIFY handling in client library to check that
34 if the client's nickname was changed, so there is no need to
35 resolve anything from the server.
37 * Removed error printing from the WHOIS and IDENTIFY commands.
38 If error occurs then it is ignored silently in the client library.
39 The application, however, may map the received error to
40 human readable error string. The application currently maps
41 the NO_SUCH_NICKNAME error to string.
43 * Made the command status message public to the application. Moved
44 them from lib/silcclient/command_reply.c to
45 lib/silcclient/command_reply.h. The application can map the
46 received command status to the string with the
47 silc_client_command_status_message function.
49 * Added check to the server to check that client's ID is same
50 as the Source ID in the packet the client sent. They must
53 Tue Mar 13 12:49:21 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
55 * Added dist-bzip hook to the Makefile.am to make bzip2
56 compressed distributions.
58 Mon Mar 12 18:43:38 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
60 * Server now enforces the maximum length for the nickname and
61 the channel as protocol specification dictates. 128 bytes for
62 nickname and 256 bytes for channel name.
64 * Moved the WHOIS printing to the application. The client libary
65 does not print out the WHOIS information anymore, the application
66 must do it. Renamed silc_client_command_reply_whois_print to
67 the silc_client_command_reply_whois_save.
69 The client's idle time is also sent to the application now, and
70 the idle is shown on screen.
72 * Added silc_client_command_reply_identify_save to save the
73 received IDENTIFY entries.
75 * Do not check for channel private keys in message sending and
76 reception if the channel does not have the PRIVKEY mode set.
77 Affected file lib/silclient/client_channel.c.
79 Sun Mar 11 20:25:06 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
81 * Fixed a minor bug if WHOIS and IDENTIFY command parsing that
82 just surfaced after chaning the JOIN procedure.
84 Sun Mar 11 14:59:05 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
86 * Added silc_client_get_clients_by_list to get client entries
87 from Client ID list, that is returned for example by JOIN
88 and USERS command replies. The application should use this
89 function for example when JOIN command reply is received to
90 resolve the clients already on the channel (library does not
91 do that anymore as USERS command reply is not used in the JOIN
92 procedure anymore). Affected files lib/silcclient/silcapi.h and
93 lib/silcclient/idlist.c.
95 * JOIN command reply and USERS command reply returns now SilcBuffer
96 pointers instead of unsigned char pointers when returning
97 the client list and mode list.
99 * Added <Client ID> argument to the JOIN command reply, mainly
100 for the server to identify for which client the command was
101 originally sent. Updated protocol specs accordingly.
103 * Added SilcDlist private_key pointer to the SilcChannelEntry
104 in the client to support the channel private keys. Affected
105 file is lib/silcclient/idlist.h.
107 * Added SilcChannelPrivateKey argument to the function
108 silc_client_send_channel_message so that application can choose
109 to use specific private ke if it wants to. If it is not provided,
110 the normal channel key is used, unless private keys are set.
111 In this case the first (key that was added first) is used
112 as the encryption key.
114 * Implemented the support for channel private key handling.
115 Implemented the following functions:
117 silc_client_add_channel_private_key,
118 silc_client_del_channel_private_keys,
119 silc_client_del_channel_private_key,
120 silc_client_list_channel_private_keys and
121 silc_client_free_channel_private_keys
123 Affected file lib/silcclient/client_channel.c.
125 * Added the support for the private keys in the channel message
126 sending and encryption and in the message reception and
127 decryption. Affected funtions are
128 silc_client_send_channel_message and silc_client_channel_message.
130 Sat Mar 10 21:36:22 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
132 * Added SKE's key verify callback to the client library's
133 KE protocol context. Affected files lib/silcclient/protocol.[ch].
135 * Removed the statement that server (or router) must send USERS
136 command reply when joining to the channel so that the client
137 knows who are on the channel. Instead, the client list and
138 client's mode list is now sent in the JOIN command reply to the
139 client who joined channel. This is better solution.
141 * Added function silc_server_get_users_on_channel and function
142 silc_server_save_users_on_channel to the silcd/server.[ch].
144 * Removed function silc_server_command_send_users from the
147 * Do not show topic on the client library anymore. The topic is
148 sent in the command reply notify to the application and the
149 application must show the topic now.
151 Sat Mar 10 00:07:37 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
153 * Added client searching by nickname hash into the IDENTIFY and
154 WHOIS commands in the server as they were clearly missing from
155 them. Affected file is silcd/command.c.
157 * Fixed a bug in private message receiving in the client library.
158 The remote ID was freed and it wasn't supposed, now it is
161 Fri Mar 9 12:40:42 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
163 * Minor fix to the channel payload; allocate the data area, as it
164 needs to be of specific length.
166 * If the key agreement port is zero then the operating
167 system will define the bound port. Affected files are
168 lib/silcclient/silcapi.h and lib/silcclient/client_keyagr.c.
170 * Added new function silc_channel_payload_decrypt into the file
171 lib/silccore/silcchannel.[ch].
173 * Moved the channel message etc, check from silc_packet_decrypt
174 to applications. The library calls now a generic
175 SilcPacketCheckDecrypt callback which is to return TRUE or FALSE
176 when the packet is either normal or special. This was done to
177 allow more wide range of checking that was not allowed when
178 the code was in library. Now applications can do virtually any
179 checks to the packet and return to the library the decision how
180 the packet should be processed. Affected files are
181 lib/silccore/silcpacket.[ch].
183 Added silc_server_packet_decrypt_check to the server and
184 silc_client_packet_decrypt_check to the client library.
186 * Added silc_server_packet_send_srcdest into silcd/packet_send.[ch]
187 to send with specified source and destination information.
189 * Channel message delivery between routers was broken after the
190 channel key distribution was fixed earlier. The channel key
191 was used be to distributed to other routers as well which is not
192 allowed by the protocol. Now this is fixed and channel keys
193 really are cell specific and the channel message delivery between
194 routers comply with the protocol specification.
196 * Fixed various commands in server to check also the global list
197 for the channel entry and not just the local list. The affected
198 file silcd/command.c.
200 Thu Mar 8 21:39:03 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
202 * Added assert()s to buffer formatting and unformatting routines
203 to assert (if --enable-debug) when error occurs. Affected
204 file: lib/silcutil/silcbuffmt.c.
206 * Changed to auto-reconnect to check whether the remote host is
207 router and register the re-connect timeout if it is. It used
208 to check that whether we are normal server, but router must do
209 auto-reconnect with another router as well. Affected file
212 * Removed the [<key len>] option from CMODE command as the cipher
213 name decides the key length, nowadays. See the defined ciphers
214 from the protocol specification.
216 * Added [<hmac>] option to the CMODE command to define the HMAC
217 for the channel. Added SILC_CMODE_HMAC channel mode.
219 * Added [<hmac>] option for the JOIN command so that user can
220 select which HMAC is used to compute the MACs of the channel
223 * Added Hmac field to the Channel Message Payload. The integrity
224 of plaintext channel messages are now protected by computing
225 MAC of the message and attaching the MAC to the payload. The
226 MAC is encrypted. Now, it is clear that this causes some
227 overhead to the size of the packet but rationale for this is that
228 now the receiver can verify whether the channel message decrypted
229 correctly and also when private keys are set for the channel the
230 receiver can decrypt the packet with several keys and check from
231 the MAC which key decrypted the message correctly.
233 * Added silc_cipher_encrypt and silc_cipher_decrypt into the
234 lib/silccrypt/silccipher.[ch].
236 * Added silc_hash_len to return the digest length into the
237 lib/silcrypt/silchash.[ch].
239 * Rewrote parts of Silc Channel Payload interface in the
240 lib/silccore/silcchannel.[ch]. The encode function now also
241 encrypts the packet and parse function decrypts it.
243 Wed Mar 7 20:58:50 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
245 * Fixed a minor formatting bug in the SKE's key material processing.
246 It actually might have processed the keys wrong way resulting
249 * Redefined the mandatory HMAC algorithms and added new algorithms.
250 Added hmac-sha1-96 and hmac-md5-96 which are normal hmac-sha1
251 and hmac-md5 truncated to 96 bits. The mandatory is now
252 hmac-sha1-96. Rest are optional (including the one that used
253 to be mandatory). Rationale for this is that the truncated HMAC
254 length is sufficient from security point of view and can actually
255 make the attack against the HMAC harder. Also, the truncated
256 HMAC causes less overhead to the packets. See the RFC2104 for
259 * Added new [hmac] configuration section. The SKE used to use
260 the hash names (md5 and sha1) in the SKE proposal as HMCAS which
261 is of course wrong. The official names that must be proposed in
262 the SKE are the ones defined in the protocol specification
263 (hmac-sha1-96 for example). The user can configure any hmac
264 using any hash function configured in the [hash] section. At
265 least, the mandatory must be configured.
267 Rewrote the HMAC interface in lib/silccrypt/silchmac.[ch].
269 * Added HMAC list to the SKE proposal list. It has now both
270 hash algorithm list and HMAC list. This makes the protocol
271 incompatible with previous versions. The SKE now seems to work
272 the way it is supposed to work, for the first time actually.
274 * Defined plain Hash algorithms to the protocol specification.
277 Tue Mar 6 15:36:11 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
279 * Implemented support for key agreement packets into the server.
280 Added functions silc_server_key_agreement and
281 silc_server_send_key_agreement. Other than these functions,
282 server has nothing to do with this packet.
284 * Added support for private message key packets into the server.
285 Added functions silc_server_private_message_key and
286 silc_server_send_private_message_key.
290 * Changed the silc_[client|server]_protocol_ke_set_keys to be
291 called in the protocol's final callback instead in the END
292 protocol state. This makes a little more sense and in the same
293 time in client we can use the same protocol routines for normal
294 key exchange and to key agreement packet handling as well.
296 * Added to both client's and server's KE protocol context the
297 SilcSKEKeyMaterial pointer to save the key material. We will
298 bring the key material to the protocol's final callback by doing
299 this. The final callback must free the key material.
301 * Added SKE's packet_send callback into client's KE protocol
302 context so that the caller can choose what packet sending function
303 is used. This way we can use different packet sending when
304 doing normal SKE when doing key agreement packet handling (in
305 the key agreement packet handling we do not want to encrypt
308 * Implemented the responder side of the key agreement routines
309 in the client. The client can now bind to specified port and
310 accept incoming key negotiation. The key material is passed
311 to the application after the protocol is over.
313 * Implemented the processing of incoming Key Agreement packet
314 in the client. Added function silc_client_key_agreement to
317 * Implemented the intiator side of the key agreement routines
318 in the client. The client can now initiate key agreement with
319 another remote client. The key material is passed to the
320 application after the protocol is over.
322 * Created client_keyagr.c to include all the key agreement
325 * Added macro SILC_TASK_CALLBACK_GLOBAL which is equal to the
326 SILC_TASK_CALLBACK except that it is not static.
328 * Created client_notify.c and moved the Notify packet handling
329 from the client.[ch] into that file.
331 * Created client_prvmsg.c and moved all private message and
332 private message key routines from the client.[ch] into that file.
334 * Create client_channel.c and moved all channel message and
335 channel private key routines from the client.[ch] into that file.
337 * Changed silc_client_get_client_by_id_resolve to resolve with
338 WHOIS command instead of IDENTIFY command, in the file
339 lib/silclient/idlist.c.
341 Mon Mar 5 18:39:49 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
343 * Implemented the SKE's responder side to the Client library.
345 * When FAILURE is received to the protocol do not trust it
346 blindly. Register a timeout to wait whether the remote closes
347 the connection as it should do it, only after that process the
348 actual failure. This was changed to both client and server.
350 * Added client_internal.h to include some of the structures
351 there instead of client.h in lib/silcclient/.
353 * Added function silc_task_unregister_by_callback to unregister
354 timeouts by the callback function.
356 Sat Mar 3 19:15:43 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
358 * Some "Incomplete WHOIS info" errors has been appearing on the
359 log files. Took away the entry->userinfo check from WHOIS
360 reply sending. The entry->userinfo is now " " if client did not
361 provide one. I thought this was fixed earlier but something
362 is wrong still. Let's see if the error still appears.
364 Wed Feb 28 20:56:29 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
366 * Fixed a minor bug in the login when the channel key is
367 re-generated in the server. It used to generate the key in
368 wrong order and thus caused problems in the channel traffic.
370 * Fixed a minor bug in channel key distsribution after
371 KICK command. The key was not sent to the router even though
374 Tue Feb 27 20:24:25 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
376 * Added silc_ske_process_key_material_data as generic routine
377 to process any key material as the SILC protocol dictates. The
378 function is used by the actual SKE library but can be used by
379 applications as well. This relates to the private message keys
380 and the channel private keys since they must be processed the
381 same way the normal SILC session keys. The protocol dictates
382 this. Affected files: lib/silcske/silcske.[ch].
384 Added also silc_ske_free_key_material to free the
385 SilcSKEKeyMaterial structure.
387 * Defined silc_cipher_set_key function to set the key for
388 cipher without using the object's method function. The affected
389 files: lib/silccrypt/silccipher.[ch].
391 * Implemented silc silc_client_add_private_message_key,
392 silc_client_add_private_message_key_ske,
393 silc_client_del_private_message_key,
394 silc_client_list_private_message_keys and
395 silc_client_free_private_message_keys functions in the
398 Added functions silc_client_send_private_message_key to send
399 the Private Message Key payload and silc_client_private_message_key
400 to handle incoming Private Message Key payload.
402 * Added Cipher field to the Private Message Key payload to set
403 the cipher to be used. If ignored, the default cipher defined
404 in the SILC protocol (aes-256-cbc) is used.
406 Tue Feb 27 13:30:52 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
408 * Removed lib/silcclient/ops.h file.
410 Redefined parts of the SILC Client Library API. Created new
411 file silcapi.h that deprecates the ops.h file and defines the
412 published Client Library API. Defined also private message key
413 API and channel private key API into the file.
415 This is the file that the application must include from the
416 SILC Client Library. Other files need not be included by
417 the application anymore.
419 * Added new key_agreement client operation callback and also
420 defined the Key Agreement library API for the application.
422 Tue Feb 27 11:28:31 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
424 * Added new packet type: SILC_PACKET_KEY_AGREEMENT. This packet
425 is used by clients to request key negotiation between another
426 client in the SILC network. If the negotiation is started it
427 is performed using the SKE protocol. The result of the
428 negotiation, the secret key material, can be used for example
429 as private message key.
431 Implemented the Key Agreement payload into the files
432 lib/silccore/silauth.[ch].
434 Mon Feb 26 12:13:58 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
436 * Redefined ciphers for the SILC protocol. Added some new ciphers
437 and defined the key lengths for the algorithms. Changed the
438 code accordingly. The default key length is now 256 bits.
440 * Fixed SKE key distribution function silc_ske_process_key_material
441 when the key length is more than 128 bits. The default key
442 length in SILC is now 256 bits.
444 * Added new command status type: SILC_STATUS_ERR_UNKOWN_ALGORITHM
445 to indicate unsupported algorithm.
447 * Renamed rijndael.c to aes.c and all functions as well.
449 * Fixed a long standing channel key setting bug in client library.
450 Weird that it has never surfaced before.
452 * Fixed bug in channel deletion. If the entire channel is removed
453 then it must also delete the references of the channel entry
454 from the client's channel list as the client's channel entry and
455 the channel's client entry share same memory.
457 Sun Feb 25 20:47:29 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
459 * Implemented CONNECT and SHUTDOWN commands in the client.
461 * Implemented CLOSE command to the client.
463 * Added the function silc_idlist_find_server_by_name into the
464 files silcd/idlist.[ch].
466 Added the function silc_idlist_find_server_by_conn into the
467 files silcd/idlist.[ch].
469 Sat Feb 24 23:45:49 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
471 * DIE command was renamed to SHUTDOWN. Updated the both code
474 * Defined SILC_UMODE_NONE, SILC_UMODE_SERVER_OPERATOR and
475 SILC_UMODE_ROUTER_OPERATOR modes into lib/silccore/silcmode.h.
477 * Implemented CONNECT, CLOSE and SHUTDOWN commands to the server
480 * Added function silc_server_create_connection function to create
481 connection to remote router. My server implementation actually
482 does not allow router to connect to normal server (it expects
483 that normal server always initiates the connection to the router)
484 so the CONNECT command is only good for connecting to another
487 Sat Feb 24 16:03:45 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
489 * Added SILC_NOTIFY_TYPE_KICKED to indicate that the client
490 or some other client was kicked from the channel.
492 Implemented the handling of the notify type to both client
495 Implemented silc_server_send_notify_kicked to send the KICKED
496 notify. It is used to send it to the server's primary router.
498 * Implemented the KICK command into server and client.
500 * Added `query' argument to the silc_idlist_get_client function
501 to indicate whether to query the client from server or not if
504 * Added new command status type SILC_STATUS_ERR_NO_CHANNEL_FOPRIV
505 to indicate that the client is not channel founder.
509 Sat Feb 24 00:00:55 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
511 * Removed the rng context from SilcPacketContext structure and
512 changed that the packet routine uses the Global RNG API.
514 Fri Feb 23 11:22:57 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
516 * Added support for quit message that client can "leave" on the
517 channel when it quits the SILC. It is ditributed inside the
518 SILC_NOTIFY_TYPE_SIGNOFF notify type.
520 Added silc_server_free_client_data that will take the
521 signoff message as argument.
523 * Changed SKE routines to use the silc_pkcs_sign/verify routines.
525 Thu Feb 22 23:05:36 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
527 * Updated parts of the protocol specification to keep it up
530 Thu Feb 22 15:08:20 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
532 * Added List flag (SILC_PACKET_FLAG_LIST) to indicate list of
533 payloads in one packet.
535 * Deprecated following packet types: NEW_ID_LIST, NEW_CHANNEL_LIST,
536 NEW_CHANNEL_USER_LIST, SET_MODE and SET_MODE_LIST. List packets
537 use now the new List flag.
539 * Also deprecated the following packet types: REPLACE_ID,
540 NEW_CHANNEL_USER and REMOVE_CHANNEL_USER packet types.
542 * Added list support for Notify packet in server.
544 * Added silc_server_send_notify_channel_change to send the
545 CHANNEL_CHANGE notify type to replace channel ID's. Deprecates
546 the silc_server_send_replace_id.
548 * Added silc_server_send_notify_nick_change to send the
549 NICK_CHANGE notify type. Deprecates the function
550 silc_server_send_replace_id.
552 * Added silc_server_send_notify_join to send the JOIN notify type.
553 Deprecates the function silc_server_send_new_channel_user.
555 * Added silc_server_send_notify_leave to send LEAVE notify type.
556 Deprecates the function silc_server_send_remove_channel_user.
558 * Added silc_server_send_notify_cmode and
559 silc_server_send_notify_cumode to send CMODE and CUMODE notify
560 types. Deprecates the silc_server_send_set_mode function.
562 * Added SERVER_SIGNOFF notify type to indicate that server has
563 quit. This means that all clients on the channel from that
564 server will drop. This can be also used when netsplit happens.
566 Deprecated REMOVE_ID packet type since it is not needed anymore
569 Added silc_server_send_notify_server_signoff to send the
570 SERVER_SIGNOFF notify type. Deprecates the function
571 silc_server_send_remove_id.
573 Added also silc_server_send_notify_signoff to send the
576 * Employed the PKCS #1. It is the mandatory way to do RSA in the
577 SILC protocol from this day on. Changed the protocol
578 specification as well.
580 * Added silc_server_send_notify_topic_set to send TOPIC_SET
581 notify type. It is used between routers to notify about
582 topic changes on a channel.
584 * Added silc_id_dup into lib/silccore/id.[ch] to duplicate
587 * Partly updated the protocol specification to comply with the
588 changes now made. It is still though a bit outdated.
590 * The JOIN notify type now takes one extra argument <Channel ID>.
591 The packet used to be destined to the channel but now the
592 JOIN type may be sent as list thus it is impossible to
593 destine it to any specific channel. By adding this argument
594 it is again possible.
596 Wed Feb 21 22:39:30 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
598 * Added CREDITS file. The CHANGES and CREDITS file will appear
599 in the distribution as well.
601 Wed Feb 21 14:17:04 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
603 * Implemented CMODE_CHANGE, CUMODE_CHANGE and TOPIC_SET notify
604 types in the server's silcd/packet_receive.c.
606 * Implemented CMODE and CUMODE to work in router environment.
608 * Fixed minor encoding and decoding buglet from the
609 lib/silccore/silcmode.c.
611 * Fixed buffer overflow from lib/silcclient/command.c in USERS
614 Wed Feb 21 12:44:00 EET 2001 Mika Boström <bostik@lut.fi>
616 * Changed all SilcConfigServer* and silc_config_server* to
617 SilcServerConfig* and silc_server_config*, respectively.
620 Wed Feb 21 00:10:00 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
622 * Associated the ID (client or server ID) to the Authentication
623 Payload to avoid any possibility of forging. Updated the
624 protocol specification and the code accordingly.
626 Tue Feb 20 14:14:14 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
628 * The RSA key length is now save to the RsaKey context in the
629 key generation process in lib/silccrypt/rsa.c. The key length
630 is now used to figure out the maximum size of the block allowed
631 to be encrypted/signed.
633 * Added silc_mp_mp2bin_noalloc into lib/silcmath/mpbin.[ch]. It
634 is equivalent to the silc_mp_mp2bin but does not allocate any
637 * Changed silc_mp_mp2bin API to take length argument. If it is
638 non-zero then the buffer is allocated that large. If zero, then
639 the size is approximated using silc_mp_sizeinbase, which however
642 * Created Global RNG API which is global RNG that application can
643 initialize. After initializing, any routine anywhere in the
644 code (including library) can use RNG without allocating a new
645 RNG object. This was done to allow this sort of use of the
646 RNG in code that has no chance to allocate RNG object. All
647 applications currently allocate this and many routines in the
648 library use this. Affected file lib/silccrypt/silcrng.[ch].
650 * Removed the RNG kludge from lib/silcmath/primegen.c and changed
651 it to use the Global RNG API.
653 * Defined Authentication Payload into protocol specification that
654 is used during SILC session to authenticate entities. It is
655 used for example by client to authenticate itself to the server
656 to obtain server operator privileges.
658 Implemented this payload into the lib/silccore/silcauth.[ch].
659 Implemented also routines for public key based authentication
660 as the new protocol specification dictates.
662 Moved definitions of different authentication methods from
663 lib/silccore/silcprotocol.h into lib/silccore/silcauth.h.
665 * Added silc_pkcs_encrypt, silc_pkcs_decrypt, silc_pkcs_sign,
666 silc_pkcs_verify and silc_pkcs_sign_with_hash and
667 silc_pkcs_verify_with_hash functions into the file
668 lib/silccrypt/silcpkcs.[ch].
670 Mon Feb 19 19:59:28 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
672 * The client entry's userinfo pointer must be always valid.
673 Otherwise the [<unknown>] bug will surface beacuse the WHOIS
674 will fail since it requires the userinfo. Now, the userinfo
675 is allocated as "" if actual userinfo does not exist. Actually,
676 it must exist and it is totally Ok to drop client connections
677 that does not announce the userinfo. However, we will make
678 this workaround for now.
680 * Added silc_net_get_remote_port into lib/silcutil/silcnet.[ch]
681 to return the remote port by socket.
683 Mon Feb 19 14:26:49 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
685 * Changed SILC_SERVER_COMMAND_EXEC_PENDING macro to the name
686 SILC_SERVER_PENDING_EXEC and added an new macro
687 SILC_SERVER_PENDING_DESTRUCTOR which is called to free the
688 data or when error occurs while processing the pending command.
690 Added new argument `destructor' into silc_server_command_pending
691 and to the SilcServerCommandPending object. This destructor is
692 now called after calling the pending callback or if error occurs
693 immediately. If error occurs the actual pending callback won't
694 be called at all - only the destructor. The destructor may be
695 NULL if destructor is not needed.
697 All this applies for client library code as well. Similar
698 changes were made there as well for the pending commands.
700 In the client, the application must now allocate the
701 SilcClientCommandContext with the silc_client_command_alloc
704 * Added reference counter to the SilcServerCommandContext. Added
705 function silc_server_command_alloc and silc_server_command_dup
708 Same type of functions added to the client library for the same
711 * Removed the cmd_ident from IDListData away since it is now
712 global for all connections. It is the command identifier used
713 in command sending and with pending commands. The affected file
716 * Added reference counter to the SilcSocketConnection objecet to
717 indicate the usage count of the object. The object won't be
718 freed untill the reference counter hits zero. Currently only
719 server uses this, and client ignores it. The client must be
720 set to use this too later. The affected files are
721 lib/silccore/silcsockconn.[ch]. Added also the function
722 silc_socket_dup to increase the reference counter.
724 This was mainly added because it is possible that the socket
725 is removed underneath of pending command or other async
726 operation. Now it won't be free'd and proper DISCONNECTING
727 flags, etc. can be set to avoid sending data to connection that
728 is not valid anymore.
730 * Added SILC_SET_DISCONNECTING to server.c when EOF is read from
731 the connection. After that it sets SILC_SET_DISCONNECTED.
732 It is, however, possible that the socket data is not still freed.
733 The silc_server_packet_process now checks that data is not
734 read or written to connection that is DISCONNECTED. The socket
735 get's freed when the reference counter hits zero.
737 Mon Feb 19 00:50:57 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
739 * Changed the client operation API: channel_message operation's
740 `sender' is now the client entry of the sender, not the nickname
741 and the `channel' is the channel entry, not the channel name.
743 In the private_message operation the `sender' is now also the
744 client entry of the sender not the nickname.
746 Affected file is lib/silcclient/ops.h and all applications
747 using the client operations.
749 Sat Feb 17 22:11:50 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
751 * Moved the calling of ops->connect() from connect_to_server_final
752 into receive_new_id functin since that is the point when the
753 client is actually allowed to send traffic to network. The
754 affected file is lib/silcclient/client.c.
756 Sat Feb 17 13:15:35 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
758 * When receiving NEW_CHANNEL_LIST, NEW_CHANNEL_USER_LIST,
759 NEW_ID_LIST and SET_MODE_LIST packets, broadcast the list packet
760 (if needs broadcasting) instead of broadcasting the packets one
761 by one which would make a burst in the network traffic.
763 * Added `broadcast' argument to the functions in silcd/server.[ch]
764 silc_server_create_new_channel[_with_id] to indicate whether
765 to send New Channel packet to primary router.
767 Sat Feb 17 01:06:44 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
769 * Added new function into the silcd/server.[ch] files:
770 silc_server_create_new_channel_with_id to create new channel with
771 already existing Channel ID.
773 * Added new packet type SILC_PACKET_SET_MODE_LIST into the file
774 lib/silccore/silcpacket.h. This packet is used t send list of
775 Set Mode payloads inside one packet. Server uses this to set
776 the modes for the channels and clients on those channels, that it
777 announced to the router when it connected to it. The protocol
778 specification has been updated accordingly.
780 * The silc_server_new_channel did not handle the packet coming
781 from normal server as it normally does not send that. However,
782 when it announces its channels it does send it. Implemented
783 the support for that.
785 * Added SILC_ID_CHANNEL_COMPARE macro to compare to Channel ID's
786 into the file lib/silccore/id.h.
788 Fri Feb 16 23:57:29 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
790 * Fixed memory leaks in the functions silc_idlist_del_client,
791 silc_idlist_del_channel and silc_idlist_del_server in the file
792 silcd/idlist.c. All of those leaked like a sieve.
794 * Fixed some small memory leaks in the client's function
795 silc_client_notify_by_server.
797 * Added functions into silcd/server.c: silc_server_announce_clients,
798 silc_server_announce_channels and silc_server_announce_server.
799 These functions are used by normal and router server to announce
800 to its primary router about clients, channels and servers (when
801 router) that we own. This is done after we've connected to the
804 These functions effectively implements the following packet types:
805 SILC_PACKET_NEW_CHANNEL_LIST, SILC_PACKET_NEW_CHANNEL_USER_LIST
806 and SILC_PACKET_NEW_ID_LIST.
808 * Added new functions into the silcd/packet_receive.[ch]:
809 silc_server_new_id_list, silc_server_new_channel_list and
810 silc_server_new_channel_user_list to handle the incoming
811 NEW_ID_LIST, NEW_CHANNEL_LIST and NEW_CHANNEL_USER_LIST packets.
813 * Added support of changing Channel ID in the function
814 silc_server_replace_id. If the server that announces a channel
815 to the router already exists in the router (with same name but
816 with different Channel ID), router is responsible to send
817 Replace ID packet to the server and force the server to change
818 the Channel ID to the one router has.
820 * Added new notify type SILC_NOTIFY_TYPE_CHANNEL_CHANGE to notify
821 client that the Channel ID has been changed by the router. The
822 normal server sends this to the client. Client must start using
823 the new Channel ID as the channel's ID.
825 Implemented handling of this new type into lib/silcclient/client.c
826 into the function silc_client_notify_by_server.
828 * Added new function silc_idlist_replace_channel_id into the files
829 silcd/idlist.[ch] to replace the Channel ID.
831 Fri Feb 16 14:14:00 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
833 * Call silc_server_command_identify_check always when processing
834 the IDENTIFY command in silcd/command.c
836 Thu Feb 15 20:07:37 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
838 * Added new packet type SILC_PACKET_HEARTBEAT that is used to
839 send keepalive packets. The packet can be sent by clients,
842 Added function silc_socket_set_heartbeat into the file
843 lib/silccore/silcsockconn.[ch] to set the heartbeat timeout.
844 If not set, the heartbeat is not performed. The actual
845 heartbeat is implemented in the low level socket connection
846 library. However, application is responsible of actually
849 Added silc_server_send_heartbeat to send the actual heartbeat
850 packet into silcd/packet_send.[ch]. Server now performs
851 keepalive with all connections.
853 * Added silc_task_get_first function into lib/silcutil/silctask.c
854 to return the timeout task with shortest timeout. There was a bug
855 in task unregistration that caused problems. TODO has been
856 updated to include that task system must be rewritten.
858 * The client library will now resolve the client information when
859 receiving JOIN notify from server for client that we know but
860 have incomplete information.
862 * Rewrote parts of silc_server_remove_from_channels and
863 silc_server_remove_from_one_channel as they did not remove the
864 channel in some circumstances even though they should've.
866 * Encryption problem encountered in server:
868 The LEAVE command used to send the Channel Key packet to the
869 router immediately after generating it. However, the code
870 had earlier sent Remove Channel user packet but not immediately,
871 ie. it was put to queue. The order of packets in the router
872 was that Channel Key packet was first and Remove Channel User
873 packet was second, even though they were encrypted in the
874 reverse order. For this reason, MAC check failed. Now, this
875 is fixed by not sending the Channel Key packet immediately but
876 putting it to queue. However, this is more fundamental problem:
877 packets that are in queue should actually not be encrypted
878 because packets that are sent immediately gets encrypted
879 actually with wrong IV (and thus MAC check fails). So, packets
880 that are in queue should be encrypted when they are sent to
881 the wire and not when they put to the queue.
883 However, the problem is that the current system has not been
884 designed to work that way. Instead, the packet is encrypted
885 as soon as possible and left to the queue. The queue is then
886 just purged into wire. There won't be any fixes for this
887 any time soon. So, the current semantic for packet sending
890 o If you send packet to remote host and do not force the send
891 (the packet will be in queue) then all subsequent packets to the
892 same remote host must also be put to the queue. Only after the
893 queue has been purged is it safe again to force the packet
896 o If you send all packets immediately then it safe to send
897 any of subsequent packets through the queue, however, after
898 the first packet is put to queue then any subsequent packets
899 must also be put to the queue.
901 Follow these rules and everything works fine.
903 Thu Feb 15 14:24:32 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
905 * Added new function silc_server_remove_clients_by_server to
906 remove all client entries from ID list when the server connection
907 is lost. In this case it is also important to invalidate all
908 client entires as they hold the invalid server entry. This
909 fixes fatal bug when server has lost connection and will reconnect
912 Wed Feb 14 16:03:25 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
914 * Made some sanity checks to silc_server_daemonise like to check
915 whether the requested user and group actually exists.
917 * Added sanity check to SKE's silc_ske_responder_finish to check
918 that the public and private key actually is valid.
920 * Invalidate the client's nickname when receiving Replace ID
921 packet and the Client ID is being replaced. This means that the
922 server will query the nickname if someone needs it (client)
925 * Sort the ID Cache in client library when the ID Cache data
926 has changed (needs sorting).
928 * Do not allow for SILC client to create several connections to
929 several servers. The client does not support windows right now
930 and generating multiple connections causes weird behaviour.
932 Irssi-silc client does support windows and can handle several
933 connections without problems, see: www.irssi.org and SILC plugin.
935 * Fixed some places where client was added to the IDList. The
936 rule of thumb is following (in order to get everything right):
937 If the client is directly connected local client then the
938 `connection' argument must be set and `router' argument must be
939 NULL to silc_idlist_add_client function. If the client is not
940 directly connected client then the `router' argument must
941 bet set and the `connection' argument must be NULL to the
942 silc_idlist_add_client function.
944 * The funtion silc_server_packet_send_local_channel actually did
945 not check whether the client was locally connected or not. It
946 does that now. Fixed a bug related to LEAVE command.
948 * Fixed Remove Channel User payload parsing bug in server's
949 silcd/packet_receive.c. Fixed a bug related to LEAVE command.
951 * The server's silc_server_save_channel_key now checks also the
952 global ID list for the channel as it might not be in the local
953 list. Fixed a bug related to LEAVE command.
955 * Is this the end of the [<unknown>] buglet that has been lurking
956 around for a long time? A little for loop fix in server's
957 silc_server_command_whois_parse that is used by both IDENTIFY
958 and WHOIS command. At least, this was a clear bug and a cause
959 of one type of [<unknown>] buglet.
961 * WHOIS and IDENTIFY commands call the function
962 silc_server_command_[whois/identify]_check function even if
963 we are not router server.
965 Tue Feb 13 19:55:59 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
967 * Added --with-gmp configuration option. If set the GMP
968 is always compiled in the SILC source tree. If not set then
969 it is checked whether the system has the GMP3 installed. If
970 it has then the GMP won't be compiled (the system's headers
971 and library is used), if it doesn't have it then the GMP is
972 compiled in the SILC source tree.
974 Mon Feb 12 11:20:32 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
976 * Changed RSA private exponent generation to what PKCS #1
977 suggests. We try to find the smallest possible d by doing
978 modinv(e, lcm(phi)) instead of modinv(e, phi). Note: this is
979 not security fix but optimization.
981 Sun Feb 11 18:19:51 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
983 * Added new config entry [Identity] to fork the server and run
984 it as specific user and group. A patch from Bostik.
986 * Imported Dotconf configuration library into lib/dotconf.
987 This will be used to create the SILC configuration files later.
988 It will appear in the distsribution after this commit.
990 Sat Feb 10 21:13:45 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
992 * A big code auditing weekend happening. Auditing code for
993 obvious mistakes, bugs and errors. Also, removing any code
996 Removed files for being obsolete:
998 o lib/silcutil/silcbuffer.c (the buffer interface is entirely in
999 inline in the file lib/silcutil/silcbuffer.h)
1001 o lib/silcutil/silcbufutil.c (the header has inline versions)
1003 Changed code to fix possible error conditions:
1005 o The buffer formatting routines now check that the destination
1006 buffer really has enough space to add the data. This applies for
1007 both buffer formatting and unformatting
1008 (lib/silcutil/silcbuffmt.[ch]). Also, the entire buffer
1009 unformatting was changed to accomodate following rules:
1010 XXX_*STRING_ALLOC will allocate space for the data into the pointer
1011 sent to the function while XXX_*STRING will not allocate or copy
1012 the data into the buffer. Instead it sets the pointer from the
1013 buffer into the pointer sent as argument (XXX_*STRING used to
1014 require that the pointer must be allocated already). This change
1015 makes this whole thing a bit more consistent and more optimized
1016 (note that the data returned in the unformatting with XXX_*STRING
1017 must not be freed now). The routines return now -1 on error.
1019 o Tried to find all code that use buffer_format and buffer_unformat
1020 and added return value checking to prevent formatting and
1021 especially unformatting errors and possible subsequent fatal
1024 o Changed ske->x and ske->KEY to mallocated pointers in
1025 lib/silcske/silcske.h. Fixed possible data and memory leak.
1027 o Added return value checking to all *_parse* functions. Fixed
1028 many memory leaks as well.
1030 o Added length argument to silc_id_str2id in lib/silccore/id.[ch]
1031 so that buffer overflows would not happen. All code now also
1032 checks the return value as it can fail.
1034 Mon Feb 5 20:08:30 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1036 * Added reconnection support to server if the normal server looses
1037 its connection to the router (for example if router is rebooted).
1038 The server performs normal reconnection strategy implemented
1039 to the server. Affected file silcd/server.c.
1041 Sun Feb 4 13:18:32 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1043 * Added new packet type SILC_PACKET_SET_MODE that is used to
1044 distribute the information about changed modes (for clients,
1045 channels and clients channel modes) to all routers in the
1046 network. Updated the protocol specification accordingly.
1048 Added functions into silcd/packet_send.c and
1049 silcd/packet_receive.c: silc_server_send_set_mode,
1050 silc_server_set_mode.
1052 Added new files silcmode.[ch] into lib/silccore that implements
1053 the encoding and decoding of Set Mode Payload. Added new type
1054 SilcSetModePayload. Moved the definitions of different modes
1055 from lib/silccore/silcchannel.h into lib/silccore/silcmode.h.
1057 Sat Feb 3 15:44:54 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1059 * Oops, a little mistake in server's connection authentication
1060 protocol. The protocol is not ended with FAILURE but with
1061 SUCCESS if the authentication is Ok. :) Affected file is
1064 * Implemented NICK_CHANGE notify handling in server in the file
1065 silcd/packet_receive.c The NICK_CHANGE notify is distributed to
1066 the local clients on the channel. After the changing nickname
1067 in router environment snhould work and the [<unknown>] nickname
1068 should appear no more.
1070 The silc_server_replace_id function that receives the Replace ID
1071 payload now sends the NICK_CHANGE notify type also in the file
1072 silcd/packet_receive.c
1074 * Changed WHOIS and IDENTIFY command to support the maximum amount
1075 of arguments defined in protocol specs (3328 arguments). This
1076 fixed a bug that caused problems when there were more than three
1079 Fri Feb 2 11:42:56 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1081 * Added extra parameter, command identifier, to the
1082 silc_client_send_command so that explicit command identifier
1085 Changed that ID list routines uses specific command identifier
1086 when sending WHOIS/IDENTIFY requests to the server so that they
1087 can be identified when the reply comes back.
1089 Affected files lib/silcclient/command.[ch],
1090 lib/silcclient/client.c and lib/silcclient/idlist.[ch].
1092 * Added `sender' argument to silc_server_packet_send_to_channel
1093 to indicaet the sender who originally sent the packet to us
1094 that we are now re-sending. Ignored if NULL. Affected file
1095 silcd/packet_send.[ch].
1097 * Added some server statistics support in silcd/server_internal.h
1098 SilcServerStatistics structure and around the server code. Also
1099 send some nice statistics information when client is connecting
1102 Thu Feb 1 23:31:21 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1104 * Fixed channel ID decoding in server's JOIN command reply in
1105 silcd/command_reply.c
1107 * Fixed braodcasting of replace ID payload to not to send it if
1108 we are standalone server in silcd/packet_receive.c.
1110 * Fixed all channel message sending routines to not to send
1111 packets to clients that has router set, since they are routed
1112 separately in the same function earlier. Affects file
1113 silcd/packet_send.c and all channel packet sending functions.
1115 * In USERS reply, res_argv[i] are not allocated, the table
1116 is allocated. Thus changed that free the table, not its
1119 * In server's whois_check and identify_check if the client is
1120 locally connected do not send any WHOIS commands - they are not
1123 Thu Feb 1 21:32:27 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1125 * Fixed some minor bugs in client when sending WHOIS command. The
1126 arguments was in wrong order.
1128 * Removed statis function add_to_channel from server in
1129 silcd/command.c that was previously used with the joining but
1132 * Tested USERS command in router environment successfully with two
1133 routers, two servers and two clients.
1135 Thu Feb 1 00:54:26 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1137 * Reorganized the USERS command and command reply in client library
1138 in lib/silcclient/command.c and lib/silcclient/command_reply.c.
1139 When the command is given by user we register a pending command
1140 callback that will reprocess the command after the reply has been
1141 received from the server. When reprocessing the packet we then
1142 display the information. Thus, the USERS information is displayed
1143 now in the command callback instead of in the command reply
1144 callback. The processing of the command is same as previously
1145 when server has sent the command reply in the JOINing process.
1147 * Added to USERS command in silcd/command_reply.c to join the client,
1148 we didn't use to know about, to the channel after we've created
1149 a client entry for it. Also, for clienet we did know already still
1150 check whether it is on the channel or not and add it if not.
1152 * Removed silc_server_command_join_notify as the function and its
1155 Tue Jan 30 22:39:15 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1157 * Changed the client's pending command handling to the same as the
1158 server's pending command handling. It is also now possible to
1159 execute command reply functions from other command reply
1160 function as the function callbacks for commands and command
1161 replies are one and same. The pending commands are not static
1162 list anymore, it is mallocated SilcDList in lib/silcclient/client.h
1163 in client connection context. Thus, pending commands are server
1164 connection specific as it is convenient.
1166 Changed the function silc_client_command_pending and
1167 silc_client_command_pending_del and added new function
1168 silc_client_command_pending_check. Removed the
1169 SILC_CLIENT_CMD_REPLY_EXEC, and SILC_CLIENT_PENDING_COMMAND_CHECK
1172 * Added cmd_ident, current command identifier, to the client
1173 connection context in lib/silcclient/client.h to keep track on
1174 command identifiers used in command sending. Client's command reply
1175 function handling now supports the mandatory command identifiers.
1177 * Added SILC_CLIENT_COMMAND_EXEC_PENDING macros to all command reply
1178 funtions in client to fully support pending command callbacks.
1180 * NOTE: the name_list in USERS (old NAMES) command is NOT sent anymore
1181 as one of the arguments to the application in the command reply
1184 * NOTE: The FORWARDED flag is depracated. It used to be depracated
1185 before first releasing SILC but came back. Now it is removed again
1186 and should come back nomore. The FORWARDED flag was used only
1187 by the JOINing procedure by forwarding the command packet to router.
1188 Now, the JOINing procedure has been changed to more generic (due
1189 to various router environment issues) and FORWARDED is not needed
1190 anymore for anything. The protocol specification is yet to be
1193 Now, removed silc_server_packet_forward from server and the flag
1194 SILC_PACKET_FORWARDED from lib/silccore/silcpacket.h.
1196 Tue Jan 30 00:05:05 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1198 * Renamed NAMES command to USERS command. The NAMES was named that
1199 due to historical reasons. Now it is renamed. Also, rewrote
1200 parts of the USERS command. The nickname list is not sent anymore
1201 by the server. Only Client ID and mode lists are sent in the USERS
1202 command. Changed this also to the protocol specification.
1204 The client now resolves the names and stuff after it receives
1205 the USERS list from the server when joining to the channel.
1207 * WHOIS and IDENTIFY commands has been changed to support multiple
1208 Client ID's per command. One can now search for multiple users
1209 in the network by sending only one WHOIS or IDENTIFY command.
1210 Changed the code and the protocol specifications.
1212 * Removed silc_server_command_identify_parse and changed that IDENTIFY
1213 uses silc_server_command_whois_parse to parse the request. */
1215 * If normal server, do not parse the WHOIS and IDENTIFY requests
1216 before sending it to the router. Saves some time.
1218 Sun Jan 28 16:19:49 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1220 * Fixed JOIN command on client library. Wrong number of arguments
1221 used to crash the client.
1223 * Added silc_server_channel_has_global function to check whether
1224 channel has global users or not.
1226 * Added silc_server_channel_has_local function to check whether channel
1227 has locally connected clients on the channel.
1229 * The silc_server_remove_from_one_channel now checks whether the
1230 channel has global users or not after given client was removed from
1231 the channel. It also checks whether the channel has local clients
1232 on the channel anymore. If it does not have then the channel entry
1233 is removed as it is not needed anymore.
1235 * The silc_server_notify now checks on JOIN notify whether the joining
1236 client is one of locally connected or global. If it is global then
1237 the channel has now global users on the channel and that is marked
1238 to the channel entry. Also, it now saves the global client to
1239 global list who is joining and JOINs it to the channel. This is
1240 for normal server, that is.
1242 Changed silc_server_send_notify_on_channel,
1243 silc_server_packet_relay_to_channel and
1244 silc_server_packet_send_to_channel check if we are normal server
1245 and client has router set (ie. global client) do not send the
1246 message to that client, as it is already routed to our router.
1248 * Implemented LEAVE notify type handling in silc_server_notify
1251 * Tested LEAVE command in router environment successfully. Tested
1252 with two routers, two servers and two clients.
1256 * idlist_find_xxx_by_id routines now dumps the ID on the debug mode.
1258 * Implemented SIGNOFF notify type handling in silc_server_notify
1261 * silc_server_remove_id now removes the client entry from all channels
1262 it has joined and thusly sends SIGNOFF notify type.
1264 * Rewrote the NAMES list generation in server by removing two excess
1265 loops. The lists are created now inside one loop.
1267 Sat Jan 27 22:34:56 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1269 * silc_server_remove_channel_user checks now also global list
1270 for channel and client.
1272 * silc_server_new_channel_user checks now both local and global
1273 list for channel and client. Fixed a bug in client id decoding.
1274 Used to decode wrong buffer.
1276 * silc_server_channel_message checks now both local and global
1277 list for channel entry.
1279 * Tested channel joining (hence JOIN) in router environment
1280 successfully. Tested with two routers, two servers and two
1283 * Tested channel message sending in router environment successfully.
1285 Thu Jan 11 03:22:57 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
1287 * Added silc_server_save_channel_key into server.[ch] to save the
1288 received channel key in Channel Key payload processing. It is
1289 also used in JOIN command reply handling.
1291 Equivalent function silc_client_save_channel_key added into
1292 client.[ch] into client library.
1294 * Changed JOIN command reply to send information whether the channel
1295 was created or not (is existing already) and the channel key
1296 payload. Changed protocol specs accordingly.
1298 * Fixed bugs in WHOIS and IDENTIFY command reply sending when
1299 the request was sent by ID and not by nickname. Crashed on
1302 Sat Dec 23 21:55:07 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1304 * Fixed a bug in Client library. IDENTIFY and WHOIS reply functions
1305 now correctly save the received data.
1307 * silc_server_free_sock_user_data now notifies routers in the
1308 network about entities leaving the network.
1310 At the same time implemented functions silc_server_remove_id
1311 and silc_server_send_remove_id to receive and send REMOVE_ID
1312 packets. The packet is used to notify routers in the network
1313 about leaving entities. The ID removed will become invalid in
1316 * Added function silc_idlist_del_server into server. Removes and
1317 free's server entry from ID list.
1319 * silc_server_private_message function now checks, if we are router,
1320 that the destination ID really is valid ID, naturally.
1322 * In router when NEW_ID packet is received (for new client) the
1323 hash of the Client ID is saved in the ID Cache but the
1324 client->nickname is set to NULL, instead of putting the hash
1327 IDENTIFY command now also checks that client->nickname must be
1328 valid. If it is not if will request the data from the server who
1329 owns the client. Added new function
1330 silc_server_command_identify_check.
1332 * Added silc_command_set_command into lib/silccore/silcommand.[ch]
1333 to set the command to already allocated Command Payload.
1335 * Tested private message sending in router environment with two
1336 routers, two servers and two clients. Fixed minor bugs and now
1339 * Fixed segfault from client's NAMES command. Used to crash if
1342 * Forwarded packets must not be routed even if it is not destined
1343 to the receiver. Changed server code comply with this.
1345 Sun Dec 17 14:40:08 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1347 * Added `require_reverse_mapping' boolean value to ServerParams
1348 structure. If TRUE (not default) the server will require that
1349 the connecting host has fully qualified domain name.
1351 If the reverse mapping is not required and hostname could not be
1352 found the IP address is used as hostname.
1354 Sat Dec 16 17:39:54 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1356 * Implemented version string checking to both client and server.
1357 The check is incomplete currently due to the abnormal version
1358 strings used in development version of SILC.
1360 * Changed all command functions in server to use the new
1363 Fri Dec 15 15:55:12 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1365 * Changed char *data to unsigned char *data in ID Cache system to
1366 support binary data as ID Cache data. Changed code to support
1367 binary data in lib/silccore/idcache.c.
1369 * Renamed silc_server_packet_relay_command_reply to
1370 silc_server_command_reply as it is normal packet receiving
1371 function. Rewrote the function to accept command replys for
1372 servers and not only for clients.
1374 * Mark remote router always as registered server if we are connecting
1375 to it. Otherwise, commands sent by the router to us are ignored.
1377 * All ID List find routines now returns the ID Cache Entry pointer
1378 as well if requested.
1380 * WHOIS command works now in router environment, tested with two
1381 routers, two servers and two clients.
1383 * Cleaned up and rewrote IDENTIFY command. IDENTIFY should work now
1384 in router environment (as it is almost equivalent to WHOIS) but
1385 hasn't been tested thoroughly. Added new functions:
1387 silc_server_command_identify_parse
1388 silc_server_command_identify_send_reply
1389 silc_server_command_identify_from_client
1390 silc_server_command_identify_from_server
1392 * Disabled route cache adding because adding two different ID's with
1393 same IP replaces the old cache entry thus giving wrong route.
1394 The entry->router->connection is always the fastest route anyway
1395 so route cache may not be needed. Of course, new routes maybe
1396 established after receiving the ID when the entry->router->connection
1397 might not be anymore the most optimal.
1399 Thu Dec 14 15:55:35 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1401 * Add route cache for received ID for fast routing.
1403 * Added silc_server_packet_route to route received packet on router
1404 that is not destined to us.
1406 * Renamed silc_server_get_route to silc_server_route_get.
1408 * Added id_string and id_string_len fields into SilcServer to
1409 include encoded ServerID for fast comparing without excess
1410 encoding of the ID's.
1412 * Cleaned up WHOIS command on server side. Added following static
1415 silc_server_command_whois_parse
1416 silc_server_command_whois_check
1417 silc_server_command_whois_send_reply
1418 silc_server_command_whois_from_client
1419 silc_server_command_whois_from_server
1421 * Added macro SILC_SERVER_COMMAND_CHECK_ARGC to check mandatory
1422 arguments in command replies. All command functions should be
1423 updated to use this macro.
1425 Sun Dec 10 23:52:00 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1427 * Minor typo fixes on command reply handling on server.
1429 Tue Nov 28 11:05:39 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1431 * Added silc_server_command_add_to_channel internal routine to add
1432 the client to the channel after router has created the channel and
1433 sent command reply to the server.
1435 * Added generic silc_server_send_command to send any command from
1438 * Use static buffer with ID rendering instead of duplicating data.
1440 Mon Nov 27 21:39:40 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1442 * Fixed a channel user mode bug when joining to a channel server gave
1443 everybody channel founder rights, oops.
1445 * We mark ourselves as the router of the incoming server connection
1446 if we are router ourselves. This way we can check in some packet
1447 sending functions whether it is locally connected server. For
1448 incoming router connections we put NULL.
1450 * For router sending packets locally means now always sending the
1451 packet cell wide; to local clients and local servers. For normal
1452 server sending packet locally means sending it to only local
1455 * Fixed the JOIN command to really work in router environment. If the
1456 channel is created it is always created by the router. Router is
1457 also responsible of making the initial joining to the channel,
1458 sending JOIN notify to the sending server and distributing
1459 NEW_CHANNEL and NEW_CHANNEL_USER packets. Hence, if the channel
1460 does not exist server doesn't do anything else but forward the
1461 command to the router which performs everything.
1463 * Added silc_server_send_channel_key function to send the Channel Key
1466 * Added silc_server_create_channel_key to create new channel key. The
1467 channel key is now re-generated everytime someone joins or leaves
1468 a channel, as protocol dictates. Note: channel->key_len is the
1471 Wed Nov 22 22:14:19 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1473 * Splitted server.[ch] finally. Created now packet_send.[ch] and
1474 packet_receive.[ch] to separate packet sending and receiving
1475 routines. The server.[ch] now includes everything else including
1476 actual packet processing (writing and reading data) and other
1479 Renamed silc_server_private_message_send_internal to
1480 silc_server_send_private_message. The routine is still though
1481 used only to relay private messages as server does not send
1482 private messages itself.
1484 Renamed silc_server_new_channel to silc_server_create_new_channel
1485 and added new function sicl_server_new_channel that handles the
1486 incoming New Channel packet. Added also new sending function
1487 silc_server_send_new_channel to send New Channel Payload.
1489 * Added new function silc_server_notify to process incoming notify
1490 packet to the server/router. Server may then relay the notify
1491 to clients if needed.
1493 * Added new function silc_server_new_channel_user to process incoming
1494 New Channel User packet. Router will redistribute the packet and
1495 send JOIN notify to its local clients and locally connected servers
1496 if needed. Normal server will send JOIN notify to its local client
1497 on same channel when received this packet. Added also corresponding
1498 sending function silc_server_send_new_channel_user to sent the
1501 * Added boolean route argument to send_notif_to_channel and
1502 packet_send_to_channel functions to attempt to route the packet
1503 if it is TRUE and send only locally if it is FALSE.
1505 Tue Nov 21 19:49:31 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1507 * silc_server_replace_id now broadcasts the received replace ID
1508 packet if it is not broadcast packet already. The router must
1509 broadcast to inform other routers about changed ID.
1511 * Added backpointer to server's router into SilcServer context in
1512 silcd/server_internal.h.
1514 * Fixed silc_server_packet_broadcast to send correct broadcast
1517 * The channel key is now distributed to the local client as soon
1518 as it is received from the router (in router environment) so that
1519 no other packet may be sent for the channel until client has
1522 * silc_server_remove_channel_user now broadcasts the received
1523 Remove Channel User packet if it is not broadcast packet already.
1524 The router must broadcast to inform other routers about removed
1527 * Added users field into SilcPacketContext that is a reference count
1528 of the context. One can increase the reference count by calling
1529 silc_packet_context_dup which is now changed to just increase the
1530 reference count instead of duplicating the data. The reference
1531 count is decresed by calling silc_packet_context_free that will
1532 free the data after the reference count hits zero.
1534 For now on the packet context and everything allocated into it
1535 (including the raw packet from network) must be freed by calling
1536 the new silc_packet_context_free function. Added also new function
1537 silc_packet_context_alloc that must be used now to allocate the
1538 context. This also means that if a routine is asynchronous from
1539 silc_[client/server]_packet_parse_type the packet context must
1540 be duplicated by calling silc_packet_context_dup. Otherwise it
1541 gets free'd after silc_[client/server]_packet_parse_type returns.
1542 Also, one must remember that if packet is duplicated then its
1543 reference count must be decresed by calling the free function as
1544 many times as it was duplicated.
1546 * Changed SilcBuffer field from protocol contexts to SilcPacketContext
1547 from both client and server.
1549 Mon Nov 20 23:47:03 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1551 * Made joining to a channel working in router environment.
1553 * Cleaned up JOIN command on server side and create function
1554 silc_server_command_join_channel internal routine to make the
1557 Thu Nov 9 21:12:39 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1559 * Changed silc_command_pending list to SilcDList. Also, added
1560 `ident' field to SilcServerCommandPending structure to identify
1561 the reply and to call correct callback.
1563 Added silc_server_command_pending_check function to replace the
1564 corresnponding macro. The silc_command_pending list is not
1567 * Added silc_command_set_ident into lib/silccore/silccommand.[ch]
1568 to set identifier to previously allocated Command Payload. It
1569 is used to set identifier for command when resending Command
1572 * Added silc_command_payload_encode_payload to encode Command
1573 Payload buffer from SilcCommandPayload structure.
1575 * Added silc_argument_payload_encode_payload to encode Argument
1576 payload buffer from SilcArgumentPayload structure.
1578 Wed Nov 8 21:03:28 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1580 * Changed WHOIS command to support router connection on server side.
1581 The whois request is always sent to router unless the server is
1582 standalone server. After server has received the reply from the
1583 router will it send the reply to the client.
1585 * Added silc_server_packet_broadcast into silcd/server.[ch] to
1586 broadcast received broadcast packet. The function is used only
1587 by router. The broadcast packet is always sent to the router's
1590 * Added silc_id_render function in lib/silcutil/silcutil.[ch] to
1591 render given ID to printable string, for log files for example.
1593 Tue Nov 7 22:14:19 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1595 * Made basic router to router connections working. At least they
1596 can now connect to each other but nothing really works the way
1597 they are supposed - yet.
1599 * Added new initiator token to RouterConnection configuration
1600 file in silcd/serverconfig.[ch]. It is used to tell whether we
1601 are the initiator to the remote router or whether we'll expect
1602 the other end to connect.
1604 * Moved registering of listener task to silc_server_init, hence
1605 the server starts listenning as soon as it is run, even if it
1606 does not have connections to other routers. Let's see how well
1609 * Changed default connection retry timeouts for more suitable in
1612 * Removed cipher and such arguments from silc_idlist_add_client
1613 and silc_idlist_add_server prototypes from silcd/idlist.[ch].
1614 Added new function silc_idlist_add_data to add the keys and stuff
1617 * Added SilcIDListData structure and added it to SilcClientEntry
1618 and SilcServerEntry as their first field in the structure. This
1619 way we can explicitly cast the ID entries to the SilcIDListData
1620 structure and get common data for the entries. In past, we had
1621 to first check what type of connection it is and then cast it to
1622 correct ID entry type. Now, we can directly cast the opaque
1623 pointer to the SilcIDListData (no matter what ID entry it actually
1624 is) and get the data needed.
1626 Mon Nov 6 21:56:12 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1628 * Wow, found a bug in scheduler. The scheduler uninitialized itself
1629 in some circumstances even if threre were timeout tasks, though not
1630 IO tasks, but tasks anyway. Now fixed.
1632 * Defined SilcServerConnection structure to hold connection specific
1633 stuff about directly connected servers and routers. The definition
1634 is currently in silcd/server_internal.h. I thought about having
1635 a bit more important role fro this struct but for now it is used
1636 only when connecting to other server (or router actually).
1638 * Added connecting retry support in server when connecting to
1639 router(s). The retry feature implement exponential backoff
1640 algorithm. Also, added SilcServerParams structure to hold default
1641 parameters for server. For now, it include these retry settings
1642 and are hard coded. After server is moded to be as Silc Server
1643 Library this structure will be more important.
1645 Sun Nov 5 22:28:44 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1647 * Changed client librarys channel->clients table to SilcList and
1648 changed code accordingly.
1650 Thu Nov 2 16:28:01 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1652 * Changed client's channel table to SilcList and changed code
1653 accordingly. Also changed SilcChannelClientEntry to include back-
1654 pointer to the channel so that client entry can use that structure
1655 as list as well and we have fast cross-reference to the channel.
1656 This change dramatically decreased the complexity of channel
1657 handling with client entry and vice versa (removed one extra
1658 loop when searching for channel entry from many functions).
1660 * Changed server->sim from table to SilcDList and changed code
1663 * NAMES command can now be used from user interface. It will show
1664 the user list on the channel, neatly.
1666 * Added realname pointer to SilcClientEntry in lib/silcclient/idlist.h.
1667 Code now saves realname of the user if it becomes available.
1669 * Renamed configure.in to configure.in.pre and made ./prepare
1670 script to automatically add correct version string to
1671 configure.in which it creates from configure.in.pre.
1673 Wed Nov 1 17:21:26 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1675 * NAMES command reply now shows users mode with the nickname when
1678 * Moved silc_client_ch[u]mode[_char] functions from
1679 silc/clientutil.[ch] to lib/silcclient/client.[ch]. Though, that
1680 place sucks, they are utility functions and should be in some
1683 * Fixed some unsigned int's to unsigned short's. Patch by cras.
1685 * Fixed contrib/getopt*.[ch] to not require config.h. Patch by
1688 Tue Oct 31 20:10:37 EET 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1692 * Added TRQ (efficient deque and list library) into lib/trq. This is
1693 a very good list library that is currently used in the SILC. Defined
1694 SilcList API over the library because I didn't like the API very
1695 much. See lib/trq/silclist.h for the API and examples of how to
1696 use the API. Fixed various places in the code to use the new
1697 SilcList API. The SilcList is meant for lists that has a structure
1698 already defined as a list. It is not suitable to add just some
1699 context to the list (in TRQ, the context is the list actually).
1701 So, I defined SilcDList that can be used for the purpose where
1702 predefined list structure does not exit. This can be used as
1703 such list. Now some context just can be added to the SilcDList.
1704 Currently this list is not used in the SILC just yet, though there
1705 are a lot places where this can replace dynamically allocated
1706 tables and I will fix these places, later, to use SilcDList.
1707 See lib/trq/silcdlist.h for SilcDList (they are all inline functions,
1708 and use TRQ internally).
1710 Also fixed some annoying warning messages that the original TRQ
1711 code generated. Also minor changes to TRQ's Makefile.in.
1713 * Added support for querying by Client ID to both WHOIS and
1714 IDENTIFY commands into server, as required by the protocol.
1716 * Removed method function pointers from SilcBuffer structure. They
1717 weren't used to anything and just increased the context size for
1718 no good reason. This change also made silc_buffer_alloc and
1719 silc_buffer_free functions inline functions.
1721 * Disabled command flooding detection support until it's fixed so
1722 that it accepts commands in but does not execute them more than once
1725 * Added silc_net_localhost(), to return local hostname, into
1726 lib/silcutil/silcnet.[ch]. Also added client->hostname pointer
1727 that must be initialized before calling silc_client_init.
1729 * Added new function: silc_server_send_notify_on_channels to send
1730 notify messages to all channels client has joined. It is assured
1731 that the message is sent only once per client.
1733 * Moved silc_log_format (from lib/silcutil/silclog.[ch] into
1734 lib/silcutil/silcutil.[ch] as silc_format function. The new
1735 function is generic and is used by server as well, not only by
1736 the logging routines.
1738 * Added new SKE status type: SILC_SKE_STATUS_BAD_VERSION to indicate
1739 the provided version string was not acceptable. Added new function:
1740 silc_ske_check_version into lib/silcske/silcske.h. The function
1741 must be implemented by the application (client or server) and it
1742 does not reside in the SKE library. The function checks the version
1743 string remote end sent.
1745 * Added back pointers (to opaque context and to SilcSocketConnection)
1746 into SilcPacketContext structure into lib/silccore/silcpacket.h.
1748 * Added silc_packet_context_dup into lib/silccore/silcpacket.[ch] to
1749 duplicate packet context structure.
1751 * Changed `notify' client operation to send same arguments as client
1752 receives from server except for ID's. ID's are mapped to correct
1753 ID entry and that is returned. Also, if channel entry is not sent
1754 by server but the notify is for channel the channel entry is sent
1755 to application (otherwise application doesn't know that it is for
1756 channel (library gets it from packet's Destination ID)).
1758 * Added silc_client_remove_from_channels into client library to
1759 remove a client from all channels it has joined to. Used when
1760 received SIGNOFF notify from server. Added also new function
1761 silc_client_replace_from_channels to replace old ID entry with
1762 new ID entry on all channels. Used when received NICK_CHANGE
1765 * Fixed ID Cache list handling in silc_idlist_get_client in
1766 lib/silcclient/idlist.c. Also, added silc_idlist_get_client_by_id
1767 to get (or query) client by ID.
1769 * Updated TODO list.
1771 * Added connection authentication status message defined by the
1772 protocol: SILC_CONN_AUTH_OK and SILC_CONN_AUTH_FAILED and added the
1773 support for these into the code in client and server side.
1775 * Added generic function silc_client_send_command to send any command
1776 with variable argument list. Application should use this function
1777 to send commands if the command functions provided by the library
1778 does not suite for the application's user interface needs.
1780 * Added new `failure' client operation. Application is notified about
1781 received failure packet if client is executing a protocol. In this
1782 case the protocol's execution has failed.
1784 * Added SKE's end notify to send the SKE_SUCCESS notify message that
1785 is required by the protocol.
1787 * Added SILC_PROTOCOL_STATE_FAILURE to indicate received failure
1788 packet from remote. SILC_PROTOCOL_STATE_ERROR indicates local
1791 * Added status flag to SilcSKE object to indicate realtime status
1792 of the SKE protocol.
1794 * Application receives now exactly same command reply arguments as
1795 the library receives from server. However, if ID is received the
1796 corresponding ID entry is returned to the application (eg. Client
1797 ID is mapped to correct SilcClientEntry entry and that is returned).
1798 Changed command_reply client operation due to this change.
1800 * Changed all ID's in commands and in command replys as ID Payloads.
1801 Change affected both client and server side codes.
1803 All ID's sent in SILC network (with execption of ID's in SILC
1804 Packet header) are sent in ID Payload to support variable length
1807 * Server now notifies nick changes and notifies all clients on
1808 the channels about the new nickname (about the new Client ID,
1811 * Implemented CMODE command to change channel modes. Supports all
1812 channel modes defined by the protocol specs except ban and invite
1813 lists. (Also, private channel key mode is supported but support for
1814 setting private channel key in client is missing, thus, this mode
1815 has no effect on client side (except that server requires that the
1816 client uses private channel key and normal channel traffic does not
1819 Also, invite mode works per se, but INVITE command does not work
1820 yet correctly, so you can set channel as invite only channel but
1821 inviting clients to the channel does not work (it is yet to be
1822 thought what's the best way to do it).
1824 * Added new command SILC_COMMAND_CUMODE to change user mode on the
1825 channel. Defined user modes: CHANNEL_FOUNDER and CHANNEL_OPERATOR.
1826 Implemented CUMODE command to change user's mode on the channel.
1827 Supports all modes defined by the protocol specs.
1829 * Added NAMES command reply to return users modes on the channel.
1831 * Removed unnecessary and slow ciphers from lib/silccrypt.
1833 * Set SO_KEEPALIVE option to connection sockets by default.
1835 * Added new command reply status: SILC_STATUS_USER_NOT_ON_CHANNEL.
1837 * Added notify types: MOTD, CMODE_CHANGE and CUMODE_CHANGE. Also,
1838 redefined the Notify Payload into protocol specs.
1840 * Added silc_id_payload_parse_id to get ID directly from raw
1843 Mon Oct 9 20:57:02 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1845 * Changed SILC_COMMAND_IDENTIFY in protocol specification to
1846 accept searching by Client ID as well.
1848 * Added support for LEAVE and SIGNOFF notify types in client library.
1850 * Added silc_id_payload_parse_data into lib/silccore/silcpayload.[ch]
1851 to parse ID Payload from raw data.
1853 Sun Oct 8 19:33:08 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1855 * Added flags parameter into silc_ske_assemble_security_properties
1856 function in lib/silcske/silcske.[ch].
1858 * Changed notify client operation to fit better for notify messages
1859 sent by server. The notify payload received from server is now
1860 passed to the application (after parsing it to SilcNotifyPayload).
1861 It is application's responsibility to retrieve the arguments
1862 from the payload and show the message the way it wants. The message
1863 sent by server is implementation specific.
1865 * Changed public keys to comply with the protocol specification.
1866 Old public keys are not supported anymore and are not compatible.
1868 * Removed nickname from Channel Payload as the latest draft removed
1869 it. The client must resolve the nickname from the NAMES command
1870 reply received when it joined the channel.
1872 Also, changed all channel_xxxx_payload to channel_payload_xxxx.
1874 Sat Oct 7 21:55:01 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1876 * Fixed some errors in protocol specification drafts.
1878 * Created lib/silccore/silcnotify.c to implement Notify Payload
1879 encoding and decoding, lib/silccore/silcpayload.[ch] to implement
1880 generic payloads described by protocol specifications. The file
1881 includes implementations for ID Payload and Argument Payload.
1883 * Changed Command Payload implementation to use the new Argument
1884 Payload. Changed command_xxxx_payload to command_payload_xxxx
1885 to comply with SILC coding conventions.
1887 * Added suppport for Argument Payload handling in Notify Payload
1888 implementation as protocol requires it. Added the new support
1889 into server and client lib as well.
1891 Thu Oct 5 21:16:28 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1893 * Added support for multiple nicknames on same channel. [n] is
1894 added locally to the nickname if there are more than one same
1895 nicknames on the channel.
1897 * Server now sends all nicknames that matched WHOIS request.
1898 Client also shows the list received from server.
1900 * Added TOPIC command to client side. User can now set and show
1901 current topic on channel.
1903 * Added MOTD command to client and server. Also, server sends the
1904 motd when client connects to the server.
1906 * Changed version strings to comply ISO 8601.
1908 Wed Oct 4 23:29:06 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1910 * Fixed protocol error handling in client library. It should now
1911 cope even if the SKE fails for some reason.
1913 * Made new protocol specification drafts for submitting to IETF.
1915 * Implemented TOPIC command to server in silcd/command.c.
1917 * Added two new notify types into lib/silccore/silcnotify.h:
1918 SILC_NOTIFY_TYPE_NICK_CHANGE and SILC_NOTIFY_TYPE_TOPIC_SET to
1919 notify nickname change and topic setting/change on a channel.
1921 * API change of command_reply operation in client library. The
1922 application gets now the status type received from server as well.
1924 Sat Sep 30 16:57:42 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1926 * Removed the function just added to lib/silcutil/silcschedule.[ch].
1928 * Cras fixed and optimized the packet handling even further and
1929 it should work now. Minor change to the prototype of function
1930 silc_packet_receive_process in lib/silccore/silcpacket.[ch].
1932 Sat Sep 30 08:48:47 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1934 * Added new function into lib/silcutil/silcschedule.[ch]:
1935 silc_schedule_with_fd to select() a specified fd. The function
1936 returns after timeout expires or data arrives or goes. The
1937 function is used by packet routines to wait that all data is
1938 received from network.
1940 * Fixed data reading from network in lib/silccore/silcpacket.c.
1941 The code now assures that all data is read from the fd and then
1942 continues packet processing. This was a bug fix since the code
1943 used to drop some data in some circumstances.
1945 * Added new function into lib/silcclient/client.[ch]:
1946 silc_client_start_key_exchange to start key exchange after
1947 connection has been established to server. The code internally
1948 now uses this funtion but its main purpose was to provide it
1949 for applications that perform their own connecting. After
1950 application has created a connection it merely calls this
1951 function to start the key exchange between client and server.
1952 The library takes care of everything else after that.
1954 Updated also lib/silcclient/README to explain the usage of
1957 * Do not send to application information that connection has
1958 been established. Application gets notified it by connect
1961 Thu Sep 28 23:40:19 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1963 * Applied cras's patch to add silc_schedule_one function. The
1964 function runs scheduler once and returns.
1966 * Fixed the scheduler after cras messed it up. The timeout
1967 handling works now as it's supposed to work.
1969 * Added into lib/silccore/ silcnotify.h to include notify
1970 message types support. Changed silc_server_send_notify*
1971 functions, in server.[ch], to support those new notify types.
1972 Added the support for the notify types into client library,
1973 as well. Added new notify client operation into ops.h in
1976 * Changed silc_server_packet_send_to_channel to send normal
1977 packets instead of just channel message packets. The function
1978 is now used to send the notify packets to channels. It is not
1979 used to send channel message packets anymore, as server never
1982 * Added explicit casting into lib/silcutil/silcbuffmt.c to few
1983 va_arg()s as it seems to require it nowadays. I guess, if SILC
1984 is compiled with older va_arg() the new code should work anyway.
1986 Wed Sep 13 18:10:14 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
1988 * Splitted core library. Core library (lib/silccore) includes
1989 now only SILC protocol specific core (and common) components.
1990 Created new utility library (lib/silcutil) that includes more
1991 generic purpose stuff. The stuff for util library was taken
1992 from the old core library. This was minor and easy split.
1994 * Created SILC Client Library (lib/silcclient) that includes
1995 implementation of the SILC client without user interface. This
1996 was major move from silc/ directory. The code has been changed
1997 so that it is transparent towards the user interface. The
1998 silc/ directory includes now the same user interface as before
1999 and it uses the new client library. Read lib/silcclient/README.
2000 Basicly, the client library performs everything else related
2001 to SILC except user interface handling. Also, configuration
2002 files are considered to be part of user interface and library
2003 does not handle them.
2005 This change also changed a lot of structures, function naming etc.
2006 Most important change was that SilcClientWindow object was
2007 renamed to SilcClientConnection in the client library. Created
2008 also new file lib/silcclient/ops.h. Also added new files
2009 silc/local_command.[ch] and silc/client_ops.[ch].
2011 All these changes were made to make it easier for user interface
2012 designers to create what ever user interface for the SILC client
2015 It is also expected that the server will be moved to lib
2016 directory as well and SILC Server Library will be created;
2017 sometimes in the future.
2019 * Removed Local commands from lib/silccore/silccommand.h as
2020 they are application specific and new client library does not
2021 handle any of those anymore.
2023 * Several functions moved to lib/silcutil/silcutilc.[ch] from
2024 old client implementation in silc/.
2026 * Added support for callback functions in SILC_LOG_* macros.
2027 Application can now set its own callbacks that will be called
2028 instead of using the default functions that will always print
2029 the debug messages to stderr (or stdout). Also, debugging can
2030 now be disabled by setting silc_debug to FALSE and re-enabled by
2031 setting it to TRUE. Note, that logging will still work even
2032 if debugging is disabled.
2034 New functions in lib/silcutil/silclog.[ch]: silc_log_set_callbacks,
2035 silc_log_reset_callbacks, silc_log_set_debug_callbacks and
2036 silc_log_reset_debug_callbacks.
2038 * To enable debugging in silc client one must give now -d
2039 option on command line.
2041 * Changed silc_schedule_init to automatically allocate task queues
2042 if they are not allocated before calling it.
2044 Thu Sep 7 10:49:33 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2046 * Added GMP 3.1 into math library.
2048 Sun Aug 20 21:27:26 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2050 * Added SILC_PACKET_REMOVE_CHANNEL_USER to remove a client from
2051 a channel in SILC network. The packet is used by servers and
2052 routers to notify other routers that user has left a channel.
2053 This little feature was missing until now. Added the feature
2054 to protocol specification as well.
2056 Added functions: silc_server_send_remove_channel_user and
2057 silc_server_remove_channel_user into server.[ch].
2059 * Added SILC_PACKET_REKEY and SILC_PACKET_REKEY_DONE into
2060 lib/silccore/silcpacket.h. However, they are not implemented
2063 Sat Aug 19 23:04:16 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2065 * Fixed joining to a channel and sending channel messages
2066 between server and router. The channel message sending should
2067 now work inside a cell.
2069 Tue Jul 25 20:46:13 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2071 * Fixed the private message sending between server and router.
2072 The private message sending should now work inside a cell.
2074 * Added silc_server_replace_id into server.[ch] to replace
2075 existing ID in the SILC network.
2077 * Added silc_idlist_find_server_by, silc_idlist_replace_client_id
2078 and silc_idlist_replace_server_id into idlist.[ch] in server.
2080 Mon Jul 24 18:33:31 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2082 * Fixed the server to server connections. Server can again now
2083 connect to router. Router to router connections probably does
2086 Thu Jul 20 13:15:01 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2088 * Added dynamic protocol registering support. Now protocols can
2089 registered and unregistered on the fly. Patch by cras.
2091 Wed Jul 19 19:08:46 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2093 * Added lib/contrib directory to hold routines that some platforms
2094 don't have but are needed by SILC.
2096 * Added getopt.c, getopt1.c and getopt.h from GNU C library
2097 into lin/contrib to provide getopt() and getopt_long() for
2098 those who don't have it.
2100 Tue Jul 18 20:41:20 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2102 * Added AWAY command to client. When away message is set and
2103 client receives a private message packet the client automatically
2104 replies to the sender with the away message.
2106 * Fixed a bug in lib/silcmath/mpbin.c: silc_mp_mp2bin. This
2107 bug seemed to be the cause of recent problems when compiling
2110 * Added version detection support to SKE protocol specification
2111 and added the new changes to the SKE implementation as well.
2112 There were other minor changes in the SKE protocol as well.
2114 Many changes in lib/silcske/silcske.[ch] and in
2115 lib/silcske/payload.[ch].
2117 * Added ^U functionality, clear input line. Patch from cras.
2119 Mon Jul 17 23:33:26 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2121 * Mainly small bugfixes on core library. Fixed some debugging
2122 logging and buffer overflow in silclog.c.
2124 * Updated config.sub and config.guess on the distribution tree.
2126 Sat Jul 15 15:33:48 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2128 * Added command lagging support in server. Client may execute
2129 commands now only once in two seconds.
2131 Thu Jul 13 22:10:21 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2133 * Optimized packet reception. MAC computation and checking is now
2134 also more optimized. A lot previously duplicated code is now
2135 used as generic by both client and server.
2137 * Fixed key pair generation in clientutil.c
2139 Wed Jul 12 18:28:07 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2141 * Added into lib/silccore/silcbufutil.[ch] new function;
2142 silc_buffer_realloc.
2144 * Moved generic packet sending/encryption functions to
2145 lib/silccore/silcpacket.[ch] from client and server. Some
2146 rewriting of the functions.
2148 * Moved all generic packet reception/decryption functions to
2149 lib/silccore/silcpacket.[ch] from client and server. The
2150 packet processing is now much cleaner in both client and server.
2151 These were major changes in both client and server.
2153 * Created many common functions in server to do packet sending.
2154 Previously code were duplicated a lot, this has been removed
2157 Tue Jul 11 20:27:26 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2159 * Rewrote major parts of the ID cache system. Don't know
2160 whether it is better now or not but at least the API is more
2163 * Major rewrite on ID cache stuff on client because of the ID
2164 cache API changes. Added idlist.c to client.
2166 * Also major rewrite on ID cache stuff on server as well.
2167 Major rewrite of idlist.[ch]. SilcXXXList's are now named
2168 SilcXXXEntry's. We won't keep anymore idlist specific pointers
2169 in hand, instead they are all put into the ID cache system now.
2170 All server_idlist_* routines uses ID cache now instead of
2171 traversing its own lists (those lists does not exist anymore).
2172 SilcIDList though still exists. Also, SilcXXXEntry's are
2175 Sun Jul 9 15:19:24 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2177 * Finally made the SKE implementation compliant to the protocol
2178 specification. All mp integers are now binary encoded as
2179 opposed being HEX encoded.
2181 * Added lib/silcmath/mpbin.[ch]. Encoding mp intergers to and
2184 * Added into lib/silccore/silcutil.[ch] PEM encoding/decoding
2185 functions: silc_[encode/decode]_pem. Also added function
2186 silc_encode_pem_file to PEM encode with newlines ('\n') for
2189 * SILC public keys are now encoded either PEM or binary. Same
2190 option is for private keys as well. By default private keys
2191 are binary encoded and public keys PEM encoded. Silly HEX
2192 encoding were removed.
2194 * Added into lib/silccrypt/silchash.[ch] silc_hash_fingerprint
2195 function to create fingerprints.
2197 * Fixed a bug in SHA1; does not change the original data anymore.
2199 * Partly implemented INFO command on client and server side.
2200 Fixed CLEAR command. Changes to SERVER command; show current
2201 server(s) when giving command without arguments. Added
2202 VERSION command to client.
2204 * Added check to server that unregistered connections cannot
2205 execute commands (unless it is specificly allowed).
2207 Thu Jul 6 18:12:24 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2209 * Fixed screen refresh.
2211 * Fixed channel joining bug from client. On some circumstances
2212 client tried to join to a channel it had already joined.
2214 * Added public key verification process into client's protocol.c.
2215 The client now verifies the public key from user and saves
2216 it into ~./silc/serverkeys/ directory.
2218 Added into: clientutil.[ch]: silc_client_verify_server_key.
2220 * Changed SKE protocol's silc_ske_initiator_finish function
2221 to accept callback function that verifies the received public
2222 key. Removed old silc_ske_verify_public_key function.
2224 Wed Jul 5 19:19:02 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2226 * Added into silcpkcs[ch]: silc_pkcs_public_key[_data]_set and
2227 silc_pkcs_private_key[_data]_set.
2229 * Made the password and public authentication more cleaner in
2230 server's protocol.c.
2232 * Removed historic and obsolete protocol `channel_auth' from
2233 both client and server.
2235 * Removed wrong way of sending command status messages from
2236 server to client in server's command.c. The old way violated
2237 protocol specification.
2239 Changes to silccore/silccommand.[ch]: removed
2240 silc_command_encode_status_payload -> not needed anymore,
2241 changed silc_command_encode_payload_va to accept extra
2242 argument on variable argument list. The argument type must
2243 now be provided to the function. Also, added new function:
2244 silc_command_encode_reply_payload_va which is same as
2245 normal command_encode_payload_va except command status type
2246 is provided as extra argument.
2248 Tue Jul 4 18:26:39 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2250 * Added ~./silc directory handling. The directory includes the
2251 public and private keys for the client.
2253 Added silc_client_check_silc_dir, silc_client_create_identifier
2254 and silc_client_load_keys.
2256 * Implemented SILC protocol compliant public key. Added public
2257 and private key saving to and loading from files.
2259 Added into silcpkcs.[ch]: silc_pkcs_encode_identifier,
2260 silc_pkcs_public_key_encode[_data], silc_pkcs_public_key_decode,
2261 silc_pkcs_private_key_encode[_data], silc_pkcs_private_key_decode,
2262 silc_pkcs_public_key_alloc, silc_pkcs_public_key_free,
2263 silc_pkcs_private_key_alloc and silc_pkcs_private_key_free.
2265 Implemented: silc_pkcs_save_[public/private]_key[_data] and
2266 silc_pkcs_load_[public/private]_key.
2268 Mon Jul 3 18:51:27 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2270 * Added silc_server_get_route (route.[ch]) to get connection
2271 data for the fastest route for given ID.
2273 * Implemented INVITE command on client and server. The command
2274 were re-defined in the SILC Protocol Specification and the
2275 implementation now complies with the specification.
2277 * Implemented PING command on client and server.
2279 * Implemented NAMES command on client and server. The server side
2280 supports currently only normal server not router server yet.
2281 Some changes to NAMES definition in SILC protocol specification.
2283 Sun Jul 2 18:23:01 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2285 * Implemented LEAVE command on client and server.
2287 * Previously deprecated SILC_PACKET_FORWARDED flag is now in use
2288 again. This change was made to the protocol as well. Server
2289 should not violate the protocol specification anymore.
2291 Fri Jun 30 14:03:26 EEST 2000 Pekka Riikonen <priikone@poseidon.pspt.fi>
2293 * Added SOCKS4 and SOCKS5 support to SILC client. SOCKS5
2294 was tested. SOCKS4 was not but should work anyway.
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