lib/silcclient, The Client Library
==================================
+ o UDP SILC connection support to SILC server
+
o Giving WHOIS for nick that doesn't exist should remove any same
named entries from the client cache.
never joined the channel if this happens. What to do if message is
received from user that hasn't been resolved/joined?
+ o Add the SilcStream (socket stream) from the SilcPacketStream and
+ SilcSocket from the socket stream to SilcClientConnection for easier
+ access to them for programmers. Currently these have to be digged up
+ from the packet stream.
+
+ o Connection option that attemps to connect to remot host with various
+ different mechanisms: UDP 706, TCP 706, TCP 80, TCP 443, UDP 7706 and
+ TCP 7706. This is the so called hole punching mechanism.
+
o Message ACKing support.
o in /cmode and /cumode with +r, maybe the public key and private key
should provide events so that application developer has a choice of
developing the SILC app with callbacks or with events.
+ o Ability to recover from rekey errors, at least try to.
+
Runtime library, lib/silcutil/
==============================
o Add directory opening/traversing functions
- o silc_getopt routines
+ o silc_getopt routines (***DONE)
+
+ o regex from /lib/contrib to lib/silcutil.
o The SILC Event signals. Asynchronous events that can be created,
connected to and signalled. Either own event routines or glued into
- SilcSchedule:
-
- SilcTask silc_schedule_task_add_event(SilcSchedule schedule,
- const char *event, ...);
- SilcBool silc_schedule_event_connect(SilcSchedule schedule,
- const char *event,
- SilcTaskCallback event_callback,
- void *context);
- SilcBool silc_schedule_event_signal(SilcSchedule schedule,
- const char *event, ...);
-
- Example:
- silc_schedule_task_add_event(schedule, "connected",
- SILC_PARAM_UI32_INT,
- SILC_PARAM_BUFFER,
- SILC_PARAM_END);
- silc_schedule_event_connect(schedule, "connected", connected_cb, ctx);
- silc_schedule_event_signal(schedule, "connected", integer, buf,
- SILC_PARAM_END);
- SILC_TASK_CALLBACK(connected_cb)
- {
- FooCtx ctx = context;
- va_list args;
- SilcUInt32 integer;
- SilcBuffer buf;
-
- va_start(args, context);
- integer = va_arg(args, SilcUInt32);
- buf = va_arg(args, SilcBuffer);
- va_end(args);
- ...
- }
-
- Problems: Events would be SilcSchedule specific, and would not work on
- multi-thread/multi-scheduler system. The events should be copyable
- between schedulers. Another problem is the signal delivery. Do we
- deliver them synchronously possibly from any thread to any other thread
- or do we deliver them through the target schedulers. If we use the
- schedulers then signalling would be asynchronous (data must be
- duplicated and later freed) which is not very nice.
+ SilcSchedule. (***DONE)
o If the event signals are added, the SILC_PARAM_* stuff needs to be
- moved from silcbuffmt.h to silctypes.h or something similar.
+ moved from silcbuffmt.h to silctypes.h or something similar. (***DONE)
o In case the SILC Events are done we shall create a new concept of
parent and child SilcSchedule's. When new SilcSchedule is created a
This relationship would be associative only. The schedulers are still
independent and run independently from each other. All schedulers
would be linked and could be accessed from any of the schedulers.
- It should be possible to retrieve the parent and enumate all children
+ It should be possible to retrieve the parent and enumerate all children
from any of the schedulers.
-
- SilcSchedule silc_schedule_init(int max_tasks, void *app_context,
- SilcSchedule parent);
- SilcSchedule silc_schedule_get_parent(SilcSchedule schedule);
+ (***DONE)
o Additional scheduler changes: optimize silc_schedule_wakeup. Wakeup
only if the scheduler is actually waiting something. If it is
o Structured log messages to Log API. Allows machine readable log
messages. Would allow sending of any kind of data in a log message.
- o Base64 to an own API
+ o Base64 to an own API (***DONE)
- o Timer API
+ o Timer API (***DONE)
o Add builtin SOCKS and HTTP Proxy support, well the SOCKS at least.
SILC currently supports SOCKS4 and SOCKS5 but it needs to be compiled
o Thread pool API. Add this to lib/silcutil/silcthread.[ch]. (***DONE)
- o Fast mutex implementation. Fast rwlock implementation. Mutex and
- rwlock implementation using atomic operations.
-
- o Compression routines are missing. The protocol supports packet
- compression thus it must be implemented. SILC Zip API must be
- defined.
-
o Add new functions to SilcStack API in lib/silcutil/silcstack.[ch]. Add
silc_stack_[set|get]_alignment. It defines the default alignment used
when allocating memory from stack. It can be used to specify special
_ua unaligned memory allocation routines. Remove unaligned memory
allocation possibility. (***DONE)
- o Add '%@' format to silc_snprintf functions. It marks for external
- rendering function of following type:
+ o silc_stack_alloc shouldn't require multiple by 8 size argument, it
+ should figure it out itself. (***DONE)
+
+ o silc_malloc et. al. to respect --with-alignment.
+
+ o Add '%@' format to silc_snprintf functions.
+ (***DONE)
+
+ o SILC Tls (Thread-local storage) API to lib/silcutil/silcthread.[ch].
+ (***DONE)
+
+ o Change silc_gettimeofday on Unix to use clock_gettime with REALTIME
+ clock if it is available, otherwise use gettimeofday(). (***DONE)
- /* Snprintf rendering function. The `data' is rendered into a string
- and allocated string is returned. If NULL is returned the
- rendering is skipped and ignored. If the returned string does
- not fit to the destination buffer it may be truncated. */
- typedef char *(*SilcSnprintfRender)(void *data);
+ o Generic SilcResult that includes all possible status and
+ error conditions and generic errno API. (***DONE)
- It can work like following:
+ (o Change some stream routines (like socket stream API) to accept ANY
+ stream and use silc_stream_get_root to get the socket stream from the
+ given stream. This will make various stream APIs more easier to use
+ when user doesn't have to dig up the correct stream.
- char *id_renderer(void *data)
- {
- char tmp[32];
- id_to_str(tmp, sizeof(tmp), (SilcID *)data);
- return strdup(tmp);
- }
+ Add silc_stream_get_root and add get_root stream operation. It
+ returns the root of the stream or NULL if stream doesn't have root.) maybe
- silc_snprintf(buf, sizeof(buf), "Client ID %@", id_renderer, client_id);
+ (o Compression routines are missing. The protocol supports packet
+ compression thus it must be implemented. SILC Zip API must be
+ defined.) maybe
- (o Generic SilcStatus or SilcResult that includes all possible status and
- error conditions, including those of SILC protocol. Though, the SILC
- protocol related status (currently in silcstatus.h) cannot be in
- runtime library) maybe
+ (o SilcIpAddr abstraction. Ipv4 and Ipv6 support to the abstaction.)
+ maybe
(o SILC specific socket creation/closing routines to silcnet.h, wrappers
to all send(), recv(), sendto() etc. Bad thing is that we'd have to
define all socket options, sockaddrs, etc.) maybe
+ (o Fast mutex implementation. Fast rwlock implementation. Mutex and
+ rwlock implementation using atomic operations.) not for now.
+
(o mmap) maybe
All PKCS routines should now take callbacks as argument and they should
be delivered to SilcPKCSObject and SilcPKCSAlgorithm too. (***DONE)
+ o The asynchronous functions to perhaps to _async to preserve backwards
+ compatibility with synchronous versions, and make easier to migrate
+ from 1.1 to 1.2.
+
o Change PKCS Algorithm API to take SilcPKCSAlgorithm as argument to
encrypt, decrypt, sign and verify functions. We may need to for exmaple
check the alg->hash, supported hash functions. Maybe deliver it also
to all other functions in SilcPKCSAlgorithm to be consistent. (***DONE)
- o Add DSS support. Take implementation from Tom or make it yourself.
+ o Add DSA support to SILC public key.
+
+ o Add DSS support. (***DONE)
o Implement the defined SilcDH API. The definition is in
lib/silccrypt/silcdh.h. Make sure it is asynchronous so that it can
be accelerated. Also take into account that it could use elliptic
curves.
- o ECDSA and ECDH
+ o Add ECDSA support.
+
+ o Add ECDH support.
+
+ o AES CBC is missing proper alignment code (see silc_1_1_branch).
o All cipher, hash, hmac etc. allocation routines should take their name
- in as const char * not const unsigned char *.
+ in as const char * not const unsigned char *. (***DONE)
SILC Accelerator Library
(***DONE)
o Implement software accelerator. It is a thread pool system where the
- public key and private key operations are executed in threads.
+ public key and private key operations are executed in threads.
(***DONE)
+ o Add init options to SilcAcceleratorObject as a SilcAcceleratorOption
+ structure. Each accelerator defines the options that they support and
+ can be retrieved from the SilcAccelerator with silc_acc_get_options.
+ The format must also be machine parseable. The structure can be of the
+ following format:
+
+ typedef struct SilcAcceleratorOptionStruct {
+ const char *option; /* Option name */
+ const char *display_name; /* Option displayable name */
+ SilcParamType type; /* Option data format */
+ void *default_value; /* Option's default value */
+ SilcUInt32 default_value_len; /* Default value length */
+ } *SilcAcceleratorOption;
+
+ For software accelerator it could be for example:
+
+ { "min_threads", "Minimum threads", SILC_PARAM_UINT32, (void *)2, 4 },
+ { "max_threads", "Maximum threads", SILC_PARAM_UINT32, (void *)4, 4 },
+
o Diffie-Hellman acceleration
(o Symmetric key cryptosystem acceleration? They are always sycnhronouos
lib/silcmath
============
- o Import TFM. Talk to Tom to add the missing functions. Use TFM in
- client and client library, but TMA in server, due to the significantly
- increased memory consumption with TFM, and the rare need for public
- key operations in server.
+ o Import TFM. We want TFM's speed but its memory requirements are
+ just too much. By default it uses large pre-allocated tables which
+ will eat memory when there are thousands of public keys in system.
+ We probably want to change TFM's fp_int dynamic so that a specific
+ size can be allocated for the int. We could have two new functions:
- We want TFM's speed but not TFM's memory requirements. Talk to Tom
- about making the TFM mp dynamic just as it is in LTM.
+ SilcBool silc_mp_init_size(SilcMPInt *mp, SilcUInt32 bit_size);
+ SilcBool silc_mp_sinit_size(SilcStack stack, SilcMPInt *mp,
+ SilcUInt32 bit_size);
+
+ Which by default allocates `bit_size' bits instead of some default
+ value. silc_mp_init would allocate the default FP_SIZE with TFM
+ and do normal init with TMA and GMP. _init_size with TMA and GMP
+ would be same as _init.
+
+ o Add AND, OR and XOR support to TFM or ask Tom to do it.
o The SILC MP API function must start returning indication of success
and failure of the operation.
any other MP function (including utility ones) that may allocate
memory.
+ o Prime generation progress using callback instead of printing to
+ stdout.
+
o All utility functions should be made non-allocating ones.
lib/silcpgp
===========
- o OpenPGP certificate support, allowing the use of PGP public keys
- in SILC.
+ o OpenPGP certificate support, allowing the use of PGP public keys.
lib/silcssh
===========
- o SSH2 public key/private key support, allowing the use of SSH2 keys
- in SILC. RFC 4716.
+ o SSH2 public key/private key support, allowing the use of SSH2 keys.
+ RFC 4716. (***DONE)
lib/silcpkix
o Library must have support for SERVICE command.
+ o Both UDP and TCP support for incoming connecetions. Maintaining long
+ term UDP sessions.
+
o The server must be able to run behind NAT device. This means that
- Server ID must be based on public IP instead of private IP.
+ Server ID must be based on public IP instead of private IP (See
+ also NAT detection protocol in SILC protocol specification).
o The following data must be in per-connection context: client id cache,
server id cache, channel id cache, all statistics must be
o Do inccoming packet processing in an own FSM thread in the
server-threads FSM. Same as in client library.
+ o Binding to other ports than 706 too. To allow easier traversing
+ through NATs and firewalls server should also bind to 80, 443 and 7706
+ by default (at least try to bind). Connections must work normally
+ even if they were established to some other port other than 706.
+
+ Connection option that attemps to connect to remot server with various
+ different mechanisms: UDP 706, TCP 706, TCP 80, TCP 443, UDP 7706 and
+ TCP 7706. This is the so called hole punching mechanism.
+
+ o Ability to recover from rekey errors, at least try to.
+
o Reference count all Silc*Entry structures.
Some issues that must be kept in mind from 1.0 and 1.1 silcd's:
+ o The server and router software MUST work out of the box. After
+ installation the server must not require any configuration to run the
+ most basic working configuration. No defining IP addresses, etc.
+ The server must work just by running it.
+
o The SERVER_SIGNOFF notify handing is not optimal, because it'll
cause sending of multiple SIGNOFF notify's instead of the one
SERVER_SIGNOFF notify that the server received. This should be
projects / crypto.git / blobdiff