/* XXX TODO */
}
+typedef struct {
+ int type; /* 1 = msg, 2 = channel */
+ SILC_SERVER_REC *server;
+} *KeyInternal;
+
+static SilcSKEKeyMaterial *curr_key = NULL;
+
+/* Key agreement callback that is called after the key agreement protocol
+ has been performed. This is called also if error occured during the
+ key agreement protocol. The `key' is the allocated key material and
+ the caller is responsible of freeing it. The `key' is NULL if error
+ has occured. The application can freely use the `key' to whatever
+ purpose it needs. See lib/silcske/silcske.h for the definition of
+ the SilcSKEKeyMaterial structure. */
+
+static void keyagr_completion(SilcClient client,
+ SilcClientConnection conn,
+ SilcClientEntry client_entry,
+ SilcKeyAgreementStatus status,
+ SilcSKEKeyMaterial *key,
+ void *context)
+{
+ KeyInternal i = (KeyInternal)context;
+
+ curr_key = NULL;
+
+ switch(status) {
+ case SILC_KEY_AGREEMENT_OK:
+ printformat_module("fe-common/silc", i->server, NULL, MSGLEVEL_NOTICES,
+ SILCTXT_KEY_AGREEMENT_OK, client_entry->nickname);
+
+ if (i->type == 1) {
+ /* Set the private key for this client */
+ silc_client_del_private_message_key(client, conn, client_entry);
+ silc_client_add_private_message_key_ske(client, conn, client_entry,
+ NULL, key);
+ printformat_module("fe-common/silc", i->server, NULL, MSGLEVEL_NOTICES,
+ SILCTXT_KEY_AGREEMENT_PRIVMSG,
+ client_entry->nickname);
+ silc_ske_free_key_material(key);
+ }
+
+ break;
+
+ case SILC_KEY_AGREEMENT_ERROR:
+ printformat_module("fe-common/silc", i->server, NULL, MSGLEVEL_NOTICES,
+ SILCTXT_KEY_AGREEMENT_ERROR, client_entry->nickname);
+ break;
+
+ case SILC_KEY_AGREEMENT_FAILURE:
+ printformat_module("fe-common/silc", i->server, NULL, MSGLEVEL_NOTICES,
+ SILCTXT_KEY_AGREEMENT_FAILURE, client_entry->nickname);
+ break;
+
+ case SILC_KEY_AGREEMENT_TIMEOUT:
+ printformat_module("fe-common/silc", i->server, NULL, MSGLEVEL_NOTICES,
+ SILCTXT_KEY_AGREEMENT_TIMEOUT, client_entry->nickname);
+ break;
+
+ default:
+ break;
+ }
+
+ if (i)
+ silc_free(i);
+}
+
+/* Local command KEY. This command is used to set and unset private
+ keys for channels, set and unset private keys for private messages
+ with remote clients and to send key agreement requests and
+ negotiate the key agreement protocol with remote client. The
+ key agreement is supported only to negotiate private message keys,
+ it currently cannot be used to negotiate private keys for channels,
+ as it is not convenient for that purpose. */
+
+typedef struct {
+ SILC_SERVER_REC *server;
+ char *data;
+ WI_ITEM_REC *item;
+} *KeyGetClients;
+
+/* Callback to be called after client information is resolved from the
+ server. */
+
+SILC_CLIENT_CMD_FUNC(key_get_clients)
+{
+ KeyGetClients internal = (KeyGetClients)context;
+ signal_emit("command key", 3, internal->data, internal->server,
+ internal->item);
+ silc_free(internal->data);
+ silc_free(internal);
+}
+
+static void command_key(const char *data, SILC_SERVER_REC *server,
+ WI_ITEM_REC *item)
+{
+ SilcClientConnection conn = server->conn;
+ SilcClientEntry client_entry = NULL;
+ SilcChannelEntry channel_entry = NULL;
+ uint32 num = 0;
+ char *nickname = NULL, *serv = NULL, *tmp;
+ int command = 0, port = 0, type = 0;
+ char *hostname = NULL;
+ KeyInternal internal = NULL;
+ uint32 argc = 0;
+ unsigned char **argv;
+ uint32 *argv_lens, *argv_types;
+
+ if (!IS_SILC_SERVER(server) || !server->connected)
+ cmd_return_error(CMDERR_NOT_CONNECTED);
+
+ /* Now parse all arguments */
+ tmp = g_strconcat("KEY", " ", data, NULL);
+ silc_parse_command_line(tmp, &argv, &argv_lens, &argv_types, &argc, 7);
+ g_free(tmp);
+
+ if (argc < 4) {
+ silc_say(silc_client, conn, "Usage: /KEY msg|channel <nickname|channel> "
+ "set|unset|agreement|negotiate [<arguments>]");
+ return;
+ }
+
+ /* Get type */
+ if (!strcasecmp(argv[1], "msg"))
+ type = 1;
+ if (!strcasecmp(argv[1], "channel"))
+ type = 2;
+
+ if (type == 0) {
+ silc_say(silc_client, conn, "Usage: /KEY msg|channel <nickname|channel> "
+ "set|unset|agreement|negotiate [<arguments>]");
+ return;
+ }
+
+ if (type == 1) {
+ if (argv[2][0] == '*') {
+ nickname = "*";
+ } else {
+ /* Parse the typed nickname. */
+ if (!silc_parse_nickname(argv[2], &nickname, &serv, &num)) {
+ silc_say(silc_client, conn, "Bad nickname");
+ return;
+ }
+
+ /* Find client entry */
+ client_entry = silc_idlist_get_client(silc_client, conn, nickname,
+ serv, num, TRUE);
+ if (!client_entry) {
+ KeyGetClients inter = silc_calloc(1, sizeof(*inter));
+ inter->server = server;
+ inter->data = strdup(data);
+ inter->item = item;
+
+ /* Client entry not found, it was requested thus mark this to be
+ pending command. */
+ silc_client_command_pending(conn, SILC_COMMAND_IDENTIFY,
+ conn->cmd_ident,
+ NULL, silc_client_command_key_get_clients,
+ inter);
+ goto out;
+ }
+ }
+ }
+
+ if (type == 2) {
+ /* Get channel entry */
+ char *name;
+
+ if (argv[2][0] == '*') {
+ if (!conn->current_channel) {
+ if (nickname)
+ silc_free(nickname);
+ if (serv)
+ silc_free(serv);
+ cmd_return_error(CMDERR_NOT_JOINED);
+ }
+ name = conn->current_channel->channel_name;
+ } else {
+ name = argv[2];
+ }
+
+ channel_entry = silc_client_get_channel(silc_client, conn, name);
+ if (!channel_entry) {
+ if (nickname)
+ silc_free(nickname);
+ if (serv)
+ silc_free(serv);
+ cmd_return_error(CMDERR_NOT_JOINED);
+ }
+ }
+
+ /* Set command */
+ if (!strcasecmp(argv[3], "set")) {
+ command = 1;
+
+ if (argc == 4) {
+ if (curr_key && type == 1 && client_entry) {
+ silc_client_del_private_message_key(silc_client, conn, client_entry);
+ silc_client_add_private_message_key_ske(silc_client, conn,
+ client_entry, NULL, curr_key);
+ goto out;
+ }
+ }
+
+ if (argc >= 5) {
+ if (type == 1 && client_entry) {
+ /* Set private message key */
+
+ silc_client_del_private_message_key(silc_client, conn, client_entry);
+
+ if (argc >= 6)
+ silc_client_add_private_message_key(silc_client, conn, client_entry,
+ argv[5], argv[4],
+ argv_lens[4],
+ (argv[4][0] == '*' ?
+ TRUE : FALSE));
+ else
+ silc_client_add_private_message_key(silc_client, conn, client_entry,
+ NULL, argv[4],
+ argv_lens[4],
+ (argv[4][0] == '*' ?
+ TRUE : FALSE));
+
+ /* Send the key to the remote client so that it starts using it
+ too. */
+ silc_client_send_private_message_key(silc_client, conn,
+ client_entry, TRUE);
+ } else if (type == 2) {
+ /* Set private channel key */
+ char *cipher = NULL, *hmac = NULL;
+
+ if (!(channel_entry->mode & SILC_CHANNEL_MODE_PRIVKEY)) {
+ printformat_module("fe-common/silc", server, NULL, MSGLEVEL_CRAP,
+ SILCTXT_CH_PRIVATE_KEY_NOMODE,
+ channel_entry->channel_name);
+ goto out;
+ }
+
+ if (argc >= 6)
+ cipher = argv[5];
+ if (argc >= 7)
+ hmac = argv[6];
+
+ if (!silc_client_add_channel_private_key(silc_client, conn,
+ channel_entry,
+ cipher, hmac,
+ argv[4],
+ argv_lens[4])) {
+ printformat_module("fe-common/silc", server, NULL, MSGLEVEL_CRAP,
+ SILCTXT_CH_PRIVATE_KEY_ERROR,
+ channel_entry->channel_name);
+ goto out;
+ }
+
+ printformat_module("fe-common/silc", server, NULL, MSGLEVEL_CRAP,
+ SILCTXT_CH_PRIVATE_KEY_ADD,
+ channel_entry->channel_name);
+ }
+ }
+
+ goto out;
+ }
+
+ /* Unset command */
+ if (!strcasecmp(argv[3], "unset")) {
+ command = 2;
+
+ if (type == 1 && client_entry) {
+ /* Unset private message key */
+ silc_client_del_private_message_key(silc_client, conn, client_entry);
+ } else if (type == 2) {
+ /* Unset channel key(s) */
+ SilcChannelPrivateKey *keys;
+ uint32 keys_count;
+ int number;
+
+ if (argc == 4)
+ silc_client_del_channel_private_keys(silc_client, conn,
+ channel_entry);
+
+ if (argc > 4) {
+ number = atoi(argv[4]);
+ keys = silc_client_list_channel_private_keys(silc_client, conn,
+ channel_entry,
+ &keys_count);
+ if (!keys)
+ goto out;
+
+ if (!number || number > keys_count) {
+ silc_client_free_channel_private_keys(keys, keys_count);
+ goto out;
+ }
+
+ silc_client_del_channel_private_key(silc_client, conn, channel_entry,
+ keys[number - 1]);
+ silc_client_free_channel_private_keys(keys, keys_count);
+ }
+
+ goto out;
+ }
+ }
+
+ /* List command */
+ if (!strcasecmp(argv[3], "list")) {
+ command = 3;
+
+ if (type == 1) {
+ SilcPrivateMessageKeys keys;
+ uint32 keys_count;
+ int k, i, len;
+ char buf[1024];
+
+ keys = silc_client_list_private_message_keys(silc_client, conn,
+ &keys_count);
+ if (!keys)
+ goto out;
+
+ /* list the private message key(s) */
+ if (nickname[0] == '*') {
+ printformat_module("fe-common/silc", server, NULL, MSGLEVEL_CRAP,
+ SILCTXT_PRIVATE_KEY_LIST);
+ for (k = 0; k < keys_count; k++) {
+ memset(buf, 0, sizeof(buf));
+ strncat(buf, " ", 2);
+ len = strlen(keys[k].client_entry->nickname);
+ strncat(buf, keys[k].client_entry->nickname, len > 30 ? 30 : len);
+ if (len < 30)
+ for (i = 0; i < 30 - len; i++)
+ strcat(buf, " ");
+ strcat(buf, " ");
+
+ len = strlen(keys[k].cipher);
+ strncat(buf, keys[k].cipher, len > 14 ? 14 : len);
+ if (len < 14)
+ for (i = 0; i < 14 - len; i++)
+ strcat(buf, " ");
+ strcat(buf, " ");
+
+ if (keys[k].key)
+ strcat(buf, "<hidden>");
+ else
+ strcat(buf, "*generated*");
+
+ silc_say(silc_client, conn, "%s", buf);
+ }
+ } else {
+ printformat_module("fe-common/silc", server, NULL, MSGLEVEL_CRAP,
+ SILCTXT_PRIVATE_KEY_LIST_NICK,
+ client_entry->nickname);
+ for (k = 0; k < keys_count; k++) {
+ if (keys[k].client_entry != client_entry)
+ continue;
+
+ memset(buf, 0, sizeof(buf));
+ strncat(buf, " ", 2);
+ len = strlen(keys[k].client_entry->nickname);
+ strncat(buf, keys[k].client_entry->nickname, len > 30 ? 30 : len);
+ if (len < 30)
+ for (i = 0; i < 30 - len; i++)
+ strcat(buf, " ");
+ strcat(buf, " ");
+
+ len = strlen(keys[k].cipher);
+ strncat(buf, keys[k].cipher, len > 14 ? 14 : len);
+ if (len < 14)
+ for (i = 0; i < 14 - len; i++)
+ strcat(buf, " ");
+ strcat(buf, " ");
+
+ if (keys[k].key)
+ strcat(buf, "<hidden>");
+ else
+ strcat(buf, "*generated*");
+
+ silc_say(silc_client, conn, "%s", buf);
+ }
+ }
+
+ silc_client_free_private_message_keys(keys, keys_count);
+ } else if (type == 2) {
+ SilcChannelPrivateKey *keys;
+ uint32 keys_count;
+ int k, i, len;
+ char buf[1024];
+
+ keys = silc_client_list_channel_private_keys(silc_client, conn,
+ channel_entry,
+ &keys_count);
+ if (!keys)
+ goto out;
+
+ printformat_module("fe-common/silc", server, NULL, MSGLEVEL_CRAP,
+ SILCTXT_CH_PRIVATE_KEY_LIST,
+ channel_entry->channel_name);
+ for (k = 0; k < keys_count; k++) {
+ memset(buf, 0, sizeof(buf));
+ strncat(buf, " ", 2);
+
+ len = strlen(keys[k]->cipher->cipher->name);
+ strncat(buf, keys[k]->cipher->cipher->name, len > 16 ? 16 : len);
+ if (len < 16)
+ for (i = 0; i < 16 - len; i++)
+ strcat(buf, " ");
+ strcat(buf, " ");
+
+ len = strlen(keys[k]->hmac->hmac->name);
+ strncat(buf, keys[k]->hmac->hmac->name, len > 16 ? 16 : len);
+ if (len < 16)
+ for (i = 0; i < 16 - len; i++)
+ strcat(buf, " ");
+ strcat(buf, " ");
+
+ strcat(buf, "<hidden>");
+
+ silc_say(silc_client, conn, "%s", buf);
+ }
+
+ silc_client_free_channel_private_keys(keys, keys_count);
+ }
+
+ goto out;
+ }
+
+ /* Send command is used to send key agreement */
+ if (!strcasecmp(argv[3], "agreement")) {
+ command = 4;
+
+ if (argc >= 5)
+ hostname = argv[4];
+ if (argc >= 6)
+ port = atoi(argv[5]);
+
+ internal = silc_calloc(1, sizeof(*internal));
+ internal->type = type;
+ internal->server = server;
+ }
+
+ /* Start command is used to start key agreement (after receiving the
+ key_agreement client operation). */
+ if (!strcasecmp(argv[3], "negotiate")) {
+ command = 5;
+
+ if (argc >= 5)
+ hostname = argv[4];
+ if (argc >= 6)
+ port = atoi(argv[5]);
+
+ internal = silc_calloc(1, sizeof(*internal));
+ internal->type = type;
+ internal->server = server;
+ }
+
+ if (command == 0) {
+ silc_say(silc_client, conn, "Usage: /KEY msg|channel <nickname|channel> "
+ "set|unset|agreement|negotiate [<arguments>]");
+ goto out;
+ }
+
+ if (command == 4 && client_entry) {
+ printformat_module("fe-common/silc", server, NULL, MSGLEVEL_NOTICES,
+ SILCTXT_KEY_AGREEMENT, argv[2]);
+ silc_client_send_key_agreement(silc_client, conn, client_entry, hostname,
+ port, 120, keyagr_completion, internal);
+ goto out;
+ }
+
+ if (command == 5 && client_entry && hostname) {
+ printformat_module("fe-common/silc", server, NULL, MSGLEVEL_NOTICES,
+ SILCTXT_KEY_AGREEMENT_NEGOTIATE, argv[2]);
+ silc_client_perform_key_agreement(silc_client, conn, client_entry,
+ hostname, port, keyagr_completion,
+ internal);
+ goto out;
+ }
+
+ out:
+ if (nickname)
+ silc_free(nickname);
+ if (serv)
+ silc_free(serv);
+}
+
void silc_channels_init(void)
{
signal_add("channel destroyed", (SIGNAL_FUNC) sig_channel_destroyed);
command_bind("me", MODULE_NAME, (SIGNAL_FUNC) command_me);
command_bind("notice", MODULE_NAME, (SIGNAL_FUNC) command_notice);
command_bind("away", MODULE_NAME, (SIGNAL_FUNC) command_away);
+ command_bind("key", MODULE_NAME, (SIGNAL_FUNC) command_key);
silc_nicklist_init();
}
command_unbind("me", (SIGNAL_FUNC) command_me);
command_unbind("notice", (SIGNAL_FUNC) command_notice);
command_unbind("away", (SIGNAL_FUNC) command_away);
+ command_unbind("key", (SIGNAL_FUNC) command_key);
silc_nicklist_deinit();
}
uint32 sims_count = 0;
#endif
-static void silc_say(SilcClient client, SilcClientConnection conn,
- char *msg, ...);
-static void
-silc_channel_message(SilcClient client, SilcClientConnection conn,
- SilcClientEntry sender, SilcChannelEntry channel,
- SilcMessageFlags flags, char *msg);
-static void
-silc_private_message(SilcClient client, SilcClientConnection conn,
- SilcClientEntry sender, SilcMessageFlags flags,
- char *msg);
-static void silc_notify(SilcClient client, SilcClientConnection conn,
- SilcNotifyType type, ...);
-static void
-silc_connect(SilcClient client, SilcClientConnection conn, int success);
-static void
-silc_disconnect(SilcClient client, SilcClientConnection conn);
-static void
-silc_command(SilcClient client, SilcClientConnection conn,
- SilcClientCommandContext cmd_context, int success,
- SilcCommand command);
-static void
-silc_command_reply(SilcClient client, SilcClientConnection conn,
- SilcCommandPayload cmd_payload, int success,
- SilcCommand command, SilcCommandStatus status, ...);
-static void
-silc_verify_public_key_internal(SilcClient client, SilcClientConnection conn,
- SilcSocketType conn_type, unsigned char *pk,
- uint32 pk_len, SilcSKEPKType pk_type,
- SilcVerifyPublicKey completion, void *context);
-static void
-silc_verify_public_key(SilcClient client, SilcClientConnection conn,
- SilcSocketType conn_type, unsigned char *pk,
- uint32 pk_len, SilcSKEPKType pk_type,
- SilcVerifyPublicKey completion, void *context);
-static void silc_ask_passphrase(SilcClient client, SilcClientConnection conn,
- SilcAskPassphrase completion, void *context);
-static int
-silc_get_auth_method(SilcClient client, SilcClientConnection conn,
- char *hostname, uint16 port,
- SilcProtocolAuthMeth *auth_meth,
- unsigned char **auth_data,
- uint32 *auth_data_len);
-static void
-silc_failure(SilcClient client, SilcClientConnection conn,
- SilcProtocol protocol, void *failure);
-static int
-silc_key_agreement(SilcClient client, SilcClientConnection conn,
- SilcClientEntry client_entry, char *hostname,
- int port,
- SilcKeyAgreementCallback *completion,
- void **context);
-
-static void silc_say(SilcClient client, SilcClientConnection conn,
- char *msg, ...)
-{
- SILC_SERVER_REC *server;
- va_list va;
- char *str;
-
- server = conn == NULL ? NULL : conn->context;
-
- va_start(va, msg);
- str = g_strdup_vprintf(msg, va);
- printtext(server, NULL, MSGLEVEL_CRAP, "%s", str);
- g_free(str);
- va_end(va);
-}
-
-static void silc_say_error(char *msg, ...)
-{
- va_list va;
- char *str;
-
- va_start(va, msg);
- str = g_strdup_vprintf(msg, va);
- printtext(NULL, NULL, MSGLEVEL_CLIENTERROR, "%s", str);
-
- g_free(str);
- va_end(va);
-}
-
-/* Message for a channel. The `sender' is the nickname of the sender
- received in the packet. The `channel_name' is the name of the channel. */
-
-static void
-silc_channel_message(SilcClient client, SilcClientConnection conn,
- SilcClientEntry sender, SilcChannelEntry channel,
- SilcMessageFlags flags, char *msg)
-{
- SILC_SERVER_REC *server;
- SILC_NICK_REC *nick;
- SILC_CHANNEL_REC *chanrec;
-
- server = conn == NULL ? NULL : conn->context;
- chanrec = silc_channel_find_entry(server, channel);
-
- nick = silc_nicklist_find(chanrec, sender);
-
- if (flags & SILC_MESSAGE_FLAG_ACTION)
- printformat_module("fe-common/silc", server, channel->channel_name,
- MSGLEVEL_ACTIONS, SILCTXT_CHANNEL_ACTION, msg);
- else if (flags & SILC_MESSAGE_FLAG_NOTICE)
- printformat_module("fe-common/silc", server, channel->channel_name,
- MSGLEVEL_NOTICES, SILCTXT_CHANNEL_NOTICE, msg);
- else
- signal_emit("message public", 6, server, msg,
- nick == NULL ? "[<unknown>]" : nick->nick,
- nick == NULL ? NULL : nick->host,
- chanrec->name, nick);
-}
-
-/* Private message to the client. The `sender' is the nickname of the
- sender received in the packet. */
-
-static void
-silc_private_message(SilcClient client, SilcClientConnection conn,
- SilcClientEntry sender, SilcMessageFlags flags,
- char *msg)
-{
- SILC_SERVER_REC *server;
-
- server = conn == NULL ? NULL : conn->context;
- signal_emit("message private", 4, server, msg,
- sender->nickname ? sender->nickname : "[<unknown>]",
- sender->username ? sender->username : NULL);
-}
-
-/* Notify message to the client. The notify arguments are sent in the
- same order as servers sends them. The arguments are same as received
- from the server except for ID's. If ID is received application receives
- the corresponding entry to the ID. For example, if Client ID is received
- application receives SilcClientEntry. Also, if the notify type is
- for channel the channel entry is sent to application (even if server
- does not send it). */
-
-typedef struct {
- int type;
- const char *name;
-} NOTIFY_REC;
-
-#define MAX_NOTIFY (sizeof(notifies)/sizeof(notifies[0]))
-static NOTIFY_REC notifies[] = {
- { SILC_NOTIFY_TYPE_NONE, NULL },
- { SILC_NOTIFY_TYPE_INVITE, "invite" },
- { SILC_NOTIFY_TYPE_JOIN, "join" },
- { SILC_NOTIFY_TYPE_LEAVE, "leave" },
- { SILC_NOTIFY_TYPE_SIGNOFF, "signoff" },
- { SILC_NOTIFY_TYPE_TOPIC_SET, "topic" },
- { SILC_NOTIFY_TYPE_NICK_CHANGE, "nick" },
- { SILC_NOTIFY_TYPE_CMODE_CHANGE, "cmode" },
- { SILC_NOTIFY_TYPE_CUMODE_CHANGE, "cumode" },
- { SILC_NOTIFY_TYPE_MOTD, "motd" },
- { SILC_NOTIFY_TYPE_CHANNEL_CHANGE, "channel_change" },
- { SILC_NOTIFY_TYPE_SERVER_SIGNOFF, "server_signoff" },
- { SILC_NOTIFY_TYPE_KICKED, "kick" },
- { SILC_NOTIFY_TYPE_KILLED, "kill" },
- { SILC_NOTIFY_TYPE_UMODE_CHANGE, "umode" },
- { SILC_NOTIFY_TYPE_BAN, "ban" },
-};
-
-static void silc_notify(SilcClient client, SilcClientConnection conn,
- SilcNotifyType type, ...)
-{
- SILC_SERVER_REC *server;
- va_list va;
-
- server = conn == NULL ? NULL : conn->context;
- va_start(va, type);
-
- if (type == SILC_NOTIFY_TYPE_NONE) {
- /* Some generic notice from server */
- printtext(server, NULL, MSGLEVEL_CRAP, "%s", (char *)va_arg(va, char *));
- } else if (type < MAX_NOTIFY) {
- /* Send signal about the notify event */
- char signal[50];
- g_snprintf(signal, sizeof(signal), "silc event %s", notifies[type].name);
- signal_emit(signal, 2, server, va);
- } else {
- /* Unknown notify */
- printtext(server, NULL, MSGLEVEL_CRAP, "Unknown notify type %d", type);
- }
-
- va_end(va);
-}
-
-/* Called to indicate that connection was either successfully established
- or connecting failed. This is also the first time application receives
- the SilcClientConnection objecet which it should save somewhere. */
-
-static void
-silc_connect(SilcClient client, SilcClientConnection conn, int success)
-{
- SILC_SERVER_REC *server = conn->context;
-
- if (success) {
- server->connected = TRUE;
- signal_emit("event connected", 1, server);
- } else {
- server->connection_lost = TRUE;
- server->conn->context = NULL;
- server_disconnect(SERVER(server));
- }
-}
-
-/* Called to indicate that connection was disconnected to the server. */
-
-static void
-silc_disconnect(SilcClient client, SilcClientConnection conn)
-{
- SILC_SERVER_REC *server = conn->context;
-
- server->conn->context = NULL;
- server->conn = NULL;
- server->connection_lost = TRUE;
- server_disconnect(SERVER(server));
-}
-
-/* Command handler. This function is called always in the command function.
- If error occurs it will be called as well. `conn' is the associated
- client connection. `cmd_context' is the command context that was
- originally sent to the command. `success' is FALSE if error occured
- during command. `command' is the command being processed. It must be
- noted that this is not reply from server. This is merely called just
- after application has called the command. Just to tell application
- that the command really was processed. */
-
-static void
-silc_command(SilcClient client, SilcClientConnection conn,
- SilcClientCommandContext cmd_context, int success,
- SilcCommand command)
-{
-}
-
-/* Client info resolving callback when JOIN command reply is received.
- This will cache all users on the channel. */
-
-void silc_client_join_get_users(SilcClient client,
- SilcClientConnection conn,
- SilcClientEntry *clients,
- uint32 clients_count,
- void *context)
-{
- SilcChannelEntry channel = (SilcChannelEntry)context;
- SilcChannelUser chu;
- SILC_SERVER_REC *server = conn->context;
- SILC_CHANNEL_REC *chanrec;
- SilcClientEntry founder = NULL;
- NICK_REC *ownnick;
-
- if (!clients)
- return;
-
- chanrec = silc_channel_find(server, channel->channel_name);
- if (chanrec == NULL)
- return;
-
- silc_list_start(channel->clients);
- while ((chu = silc_list_get(channel->clients)) != SILC_LIST_END) {
- if (chu->mode & SILC_CHANNEL_UMODE_CHANFO)
- founder = chu->client;
- silc_nicklist_insert(chanrec, chu, FALSE);
- }
-
- ownnick = NICK(silc_nicklist_find(chanrec, conn->local_entry));
- nicklist_set_own(CHANNEL(chanrec), ownnick);
- signal_emit("channel joined", 1, chanrec);
-
- if (chanrec->topic)
- printformat_module("fe-common/silc", server, channel->channel_name,
- MSGLEVEL_CRAP, SILCTXT_CHANNEL_TOPIC,
- channel->channel_name, chanrec->topic);
-
- fe_channels_nicklist(CHANNEL(chanrec), CHANNEL_NICKLIST_FLAG_ALL);
-
- if (founder) {
- if (founder == conn->local_entry)
- printformat_module("fe-common/silc",
- server, channel->channel_name, MSGLEVEL_CRAP,
- SILCTXT_CHANNEL_FOUNDER_YOU,
- channel->channel_name);
- else
- printformat_module("fe-common/silc",
- server, channel->channel_name, MSGLEVEL_CRAP,
- SILCTXT_CHANNEL_FOUNDER,
- channel->channel_name, founder->nickname);
- }
-}
-
-/* Command reply handler. This function is called always in the command reply
- function. If error occurs it will be called as well. Normal scenario
- is that it will be called after the received command data has been parsed
- and processed. The function is used to pass the received command data to
- the application.
-
- `conn' is the associated client connection. `cmd_payload' is the command
- payload data received from server and it can be ignored. It is provided
- if the application would like to re-parse the received command data,
- however, it must be noted that the data is parsed already by the library
- thus the payload can be ignored. `success' is FALSE if error occured.
- In this case arguments are not sent to the application. `command' is the
- command reply being processed. The function has variable argument list
- and each command defines the number and type of arguments it passes to the
- application (on error they are not sent). */
-
-static void
-silc_command_reply(SilcClient client, SilcClientConnection conn,
- SilcCommandPayload cmd_payload, int success,
- SilcCommand command, SilcCommandStatus status, ...)
-
-{
- SILC_SERVER_REC *server = conn->context;
- SILC_CHANNEL_REC *chanrec;
- va_list vp;
-
- va_start(vp, status);
-
- switch(command) {
- case SILC_COMMAND_WHOIS:
- {
- char buf[1024], *nickname, *username, *realname;
- uint32 idle, mode;
- SilcBuffer channels;
-
- if (status == SILC_STATUS_ERR_NO_SUCH_NICK ||
- status == SILC_STATUS_ERR_NO_SUCH_CLIENT_ID) {
- char *tmp;
- tmp = silc_argument_get_arg_type(silc_command_get_args(cmd_payload),
- 3, NULL);
- if (tmp)
- silc_say_error("%s: %s", tmp,
- silc_client_command_status_message(status));
- else
- silc_say_error("%s", silc_client_command_status_message(status));
- break;
- }
-
- if (!success)
- return;
-
- (void)va_arg(vp, SilcClientEntry);
- nickname = va_arg(vp, char *);
- username = va_arg(vp, char *);
- realname = va_arg(vp, char *);
- channels = va_arg(vp, SilcBuffer);
- mode = va_arg(vp, uint32);
- idle = va_arg(vp, uint32);
-
- printformat_module("fe-common/silc", server, NULL, MSGLEVEL_CRAP,
- SILCTXT_WHOIS_USERINFO, nickname, username,
- realname);
-
- if (channels) {
- SilcDList list = silc_channel_payload_parse_list(channels);
- if (list) {
- SilcChannelPayload entry;
- memset(buf, 0, sizeof(buf));
- silc_dlist_start(list);
- while ((entry = silc_dlist_get(list)) != SILC_LIST_END) {
- char *m = silc_client_chumode_char(silc_channel_get_mode(entry));
- uint32 name_len;
- char *name = silc_channel_get_name(entry, &name_len);
-
- if (m)
- strncat(buf, m, strlen(m));
- strncat(buf, name, name_len);
- strncat(buf, " ", 1);
- silc_free(m);
- }
-
- printformat_module("fe-common/silc", server, NULL, MSGLEVEL_CRAP,
- SILCTXT_WHOIS_CHANNELS, buf);
- silc_channel_payload_list_free(list);
- }
- }
-
- if (mode) {
- memset(buf, 0, sizeof(buf));
-
- if ((mode & SILC_UMODE_SERVER_OPERATOR) ||
- (mode & SILC_UMODE_ROUTER_OPERATOR)) {
- strcat(buf, (mode & SILC_UMODE_SERVER_OPERATOR) ?
- "Server Operator " :
- (mode & SILC_UMODE_ROUTER_OPERATOR) ?
- "SILC Operator " : "[Unknown mode] ");
- }
- if (mode & SILC_UMODE_GONE)
- strcat(buf, "away");
-
- printformat_module("fe-common/silc", server, NULL, MSGLEVEL_CRAP,
- SILCTXT_WHOIS_MODES, buf);
- }
-
- if (idle && nickname) {
- memset(buf, 0, sizeof(buf));
- snprintf(buf, sizeof(buf) - 1, "%lu %s",
- idle > 60 ? (idle / 60) : idle,
- idle > 60 ? "minutes" : "seconds");
-
- printformat_module("fe-common/silc", server, NULL, MSGLEVEL_CRAP,
- SILCTXT_WHOIS_IDLE, buf);
- }
- }
- break;
-
- case SILC_COMMAND_WHOWAS:
- {
- char *nickname, *username, *realname;
-
- if (status == SILC_STATUS_ERR_NO_SUCH_NICK ||
- status == SILC_STATUS_ERR_NO_SUCH_CLIENT_ID) {
- char *tmp;
- tmp = silc_argument_get_arg_type(silc_command_get_args(cmd_payload),
- 3, NULL);
- if (tmp)
- silc_say_error("%s: %s", tmp,
- silc_client_command_status_message(status));
- else
- silc_say_error("%s", silc_client_command_status_message(status));
- break;
- }
-
- if (!success)
- return;
-
- (void)va_arg(vp, SilcClientEntry);
- nickname = va_arg(vp, char *);
- username = va_arg(vp, char *);
- realname = va_arg(vp, char *);
-
- printformat_module("fe-common/silc", server, NULL, MSGLEVEL_CRAP,
- SILCTXT_WHOWAS_USERINFO, nickname, username,
- realname ? realname : "");
- }
- break;
-
- case SILC_COMMAND_INVITE:
- {
- SilcChannelEntry channel;
- char *invite_list;
-
- if (!success)
- return;
-
- /* XXX should use irssi routines */
-
- channel = va_arg(vp, SilcChannelEntry);
- invite_list = va_arg(vp, char *);
-
- if (invite_list)
- silc_say(client, conn, "%s invite list: %s", channel->channel_name,
- invite_list);
- else
- silc_say(client, conn, "%s invite list not set",
- channel->channel_name);
- }
- break;
-
- case SILC_COMMAND_JOIN:
- {
- char *channel, *mode, *topic;
- uint32 modei;
- SilcChannelEntry channel_entry;
- SilcBuffer client_id_list;
- uint32 list_count;
-
- channel = va_arg(vp, char *);
- channel_entry = va_arg(vp, SilcChannelEntry);
- modei = va_arg(vp, uint32);
- (void)va_arg(vp, uint32);
- (void)va_arg(vp, unsigned char *);
- (void)va_arg(vp, unsigned char *);
- (void)va_arg(vp, unsigned char *);
- topic = va_arg(vp, char *);
- (void)va_arg(vp, unsigned char *);
- list_count = va_arg(vp, uint32);
- client_id_list = va_arg(vp, SilcBuffer);
-
- if (!success)
- return;
-
- chanrec = silc_channel_find(server, channel);
- if (chanrec != NULL && !success)
- channel_destroy(CHANNEL(chanrec));
- else if (chanrec == NULL && success)
- chanrec = silc_channel_create(server, channel, TRUE);
-
- if (topic) {
- g_free_not_null(chanrec->topic);
- chanrec->topic = *topic == '\0' ? NULL : g_strdup(topic);
- signal_emit("channel topic changed", 1, chanrec);
- }
-
- mode = silc_client_chmode(modei, channel_entry);
- g_free_not_null(chanrec->mode);
- chanrec->mode = g_strdup(mode == NULL ? "" : mode);
- signal_emit("channel mode changed", 1, chanrec);
-
- /* Resolve the client information */
- silc_client_get_clients_by_list(client, conn, list_count, client_id_list,
- silc_client_join_get_users,
- channel_entry);
- break;
- }
-
- case SILC_COMMAND_NICK:
- {
- SilcClientEntry client = va_arg(vp, SilcClientEntry);
- char *old;
-
- if (!success)
- return;
-
- old = g_strdup(server->nick);
- server_change_nick(SERVER(server), client->nickname);
- nicklist_rename_unique(SERVER(server),
- server->conn->local_entry, server->nick,
- client, client->nickname);
-
- signal_emit("message own_nick", 4, server, server->nick, old, "");
- g_free(old);
- break;
- }
-
- case SILC_COMMAND_LIST:
- {
- char *topic, *name;
- int usercount;
- unsigned char buf[256], tmp[16];
- int i, len;
-
- if (!success)
- return;
-
- /* XXX should use irssi routines */
-
- (void)va_arg(vp, SilcChannelEntry);
- name = va_arg(vp, char *);
- topic = va_arg(vp, char *);
- usercount = va_arg(vp, int);
-
- if (status == SILC_STATUS_LIST_START ||
- status == SILC_STATUS_OK)
- silc_say(client, conn,
- " Channel Users Topic");
-
- memset(buf, 0, sizeof(buf));
- strncat(buf, " ", 2);
- len = strlen(name);
- strncat(buf, name, len > 40 ? 40 : len);
- if (len < 40)
- for (i = 0; i < 40 - len; i++)
- strcat(buf, " ");
- strcat(buf, " ");
-
- memset(tmp, 0, sizeof(tmp));
- if (usercount) {
- snprintf(tmp, sizeof(tmp), "%d", usercount);
- strcat(buf, tmp);
- }
- len = strlen(tmp);
- if (len < 10)
- for (i = 0; i < 10 - len; i++)
- strcat(buf, " ");
- strcat(buf, " ");
-
- if (topic) {
- len = strlen(topic);
- strncat(buf, topic, len);
- }
-
- silc_say(client, conn, "%s", buf);
- }
- break;
-
- case SILC_COMMAND_UMODE:
- {
- uint32 mode;
-
- if (!success)
- return;
-
- mode = va_arg(vp, uint32);
-
- /* XXX todo */
- }
- break;
-
- case SILC_COMMAND_OPER:
- silc_say(client, conn, "You are now server operator");
- break;
-
- case SILC_COMMAND_SILCOPER:
- silc_say(client, conn, "You are now SILC operator");
- break;
-
- case SILC_COMMAND_USERS:
- {
- SilcChannelEntry channel;
- SilcChannelUser chu;
- int line_len;
- char *line;
-
- if (!success)
- return;
-
- channel = va_arg(vp, SilcChannelEntry);
-
- /* There are two ways to do this, either parse the list (that
- the command_reply sends (just take it with va_arg()) or just
- traverse the channel's client list. I'll do the latter. See
- JOIN command reply for example for the list. */
-
- silc_say(client, conn, "Users on %s", channel->channel_name);
-
- line = silc_calloc(1024, sizeof(*line));
- line_len = 1024;
- silc_list_start(channel->clients);
- while ((chu = silc_list_get(channel->clients)) != SILC_LIST_END) {
- SilcClientEntry e = chu->client;
- int i, len1;
- char *m, tmp[80];
-
- memset(line, 0, line_len);
-
- if (strlen(e->nickname) + strlen(e->server) + 100 > line_len) {
- silc_free(line);
- line_len += strlen(e->nickname) + strlen(e->server) + 100;
- line = silc_calloc(line_len, sizeof(*line));
- }
-
- memset(tmp, 0, sizeof(tmp));
- m = silc_client_chumode_char(chu->mode);
-
- strncat(line, " ", 1);
- strncat(line, e->nickname, strlen(e->nickname));
- strncat(line, e->server ? "@" : "", 1);
-
- len1 = 0;
- if (e->server)
- len1 = strlen(e->server);
- strncat(line, e->server ? e->server : "", len1 > 30 ? 30 : len1);
-
- len1 = strlen(line);
- if (len1 >= 30) {
- memset(&line[29], 0, len1 - 29);
- } else {
- for (i = 0; i < 30 - len1 - 1; i++)
- strcat(line, " ");
- }
-
- if (e->mode & SILC_UMODE_GONE)
- strcat(line, " G");
- else
- strcat(line, " H");
- strcat(tmp, m ? m : "");
- strncat(line, tmp, strlen(tmp));
-
- if (strlen(tmp) < 5)
- for (i = 0; i < 5 - strlen(tmp); i++)
- strcat(line, " ");
-
- strcat(line, e->username ? e->username : "");
-
- silc_say(client, conn, "%s", line);
-
- if (m)
- silc_free(m);
- }
-
- silc_free(line);
- }
- break;
-
- case SILC_COMMAND_BAN:
- {
- SilcChannelEntry channel;
- char *ban_list;
-
- if (!success)
- return;
-
- /* XXX should use irssi routines */
-
- channel = va_arg(vp, SilcChannelEntry);
- ban_list = va_arg(vp, char *);
-
- if (ban_list)
- silc_say(client, conn, "%s ban list: %s", channel->channel_name,
- ban_list);
- else
- silc_say(client, conn, "%s ban list not set", channel->channel_name);
- }
- break;
-
- case SILC_COMMAND_GETKEY:
- {
- SilcIdType id_type;
- void *entry;
- SilcPublicKey public_key;
- unsigned char *pk;
- uint32 pk_len;
-
- id_type = va_arg(vp, uint32);
- entry = va_arg(vp, void *);
- public_key = va_arg(vp, SilcPublicKey);
-
- pk = silc_pkcs_public_key_encode(public_key, &pk_len);
-
- if (id_type == SILC_ID_CLIENT) {
- silc_verify_public_key_internal(client, conn, SILC_SOCKET_TYPE_CLIENT,
- pk, pk_len, SILC_SKE_PK_TYPE_SILC,
- NULL, NULL);
- }
-
- silc_free(pk);
- }
-
- case SILC_COMMAND_TOPIC:
- {
- SilcChannelEntry channel;
- char *topic;
-
- if (!success)
- return;
-
- channel = va_arg(vp, SilcChannelEntry);
- topic = va_arg(vp, char *);
-
- if (topic) {
- chanrec = silc_channel_find_entry(server, channel);
- if (chanrec) {
- g_free_not_null(chanrec->topic);
- chanrec->topic = *topic == '\0' ? NULL : g_strdup(topic);
- signal_emit("channel topic changed", 1, chanrec);
- }
- printformat_module("fe-common/silc", server, channel->channel_name,
- MSGLEVEL_CRAP, SILCTXT_CHANNEL_TOPIC,
- channel->channel_name, topic);
- }
- }
- break;
- }
-
- va_end(vp);
-}
-
-/* Internal routine to verify public key. If the `completion' is provided
- it will be called to indicate whether public was verified or not. */
-
-typedef struct {
- SilcClient client;
- SilcClientConnection conn;
- char *filename;
- char *entity;
- unsigned char *pk;
- uint32 pk_len;
- SilcSKEPKType pk_type;
- SilcVerifyPublicKey completion;
- void *context;
-} *PublicKeyVerify;
-
-static void verify_public_key_completion(const char *line, void *context)
-{
- PublicKeyVerify verify = (PublicKeyVerify)context;
-
- if (line[0] == 'Y' || line[0] == 'y') {
- /* Call the completion */
- if (verify->completion)
- verify->completion(TRUE, verify->context);
-
- /* Save the key for future checking */
- silc_pkcs_save_public_key_data(verify->filename, verify->pk,
- verify->pk_len, SILC_PKCS_FILE_PEM);
- } else {
- /* Call the completion */
- if (verify->completion)
- verify->completion(FALSE, verify->context);
-
- silc_say(verify->client,
- verify->conn, "Will not accept the %s key", verify->entity);
- }
-
- silc_free(verify->filename);
- silc_free(verify->entity);
- silc_free(verify);
-}
-
-static void
-silc_verify_public_key_internal(SilcClient client, SilcClientConnection conn,
- SilcSocketType conn_type, unsigned char *pk,
- uint32 pk_len, SilcSKEPKType pk_type,
- SilcVerifyPublicKey completion, void *context)
-{
- int i;
- char file[256], filename[256], *fingerprint;
- struct passwd *pw;
- struct stat st;
- char *entity = ((conn_type == SILC_SOCKET_TYPE_SERVER ||
- conn_type == SILC_SOCKET_TYPE_ROUTER) ?
- "server" : "client");
- PublicKeyVerify verify;
-
- if (pk_type != SILC_SKE_PK_TYPE_SILC) {
- silc_say(client, conn, "We don't support %s public key type %d",
- entity, pk_type);
- if (completion)
- completion(FALSE, context);
- return;
- }
-
- pw = getpwuid(getuid());
- if (!pw) {
- if (completion)
- completion(FALSE, context);
- return;
- }
-
- memset(filename, 0, sizeof(filename));
- memset(file, 0, sizeof(file));
-
- if (conn_type == SILC_SOCKET_TYPE_SERVER ||
- conn_type == SILC_SOCKET_TYPE_ROUTER) {
- snprintf(file, sizeof(file) - 1, "%skey_%s_%d.pub", entity,
- conn->sock->hostname, conn->sock->port);
- snprintf(filename, sizeof(filename) - 1, "%s/.silc/%skeys/%s",
- pw->pw_dir, entity, file);
- } else {
- /* Replace all whitespaces with `_'. */
- fingerprint = silc_hash_fingerprint(NULL, pk, pk_len);
- for (i = 0; i < strlen(fingerprint); i++)
- if (fingerprint[i] == ' ')
- fingerprint[i] = '_';
-
- snprintf(file, sizeof(file) - 1, "%skey_%s.pub", entity, fingerprint);
- snprintf(filename, sizeof(filename) - 1, "%s/.silc/%skeys/%s",
- pw->pw_dir, entity, file);
- silc_free(fingerprint);
- }
-
- /* Take fingerprint of the public key */
- fingerprint = silc_hash_fingerprint(NULL, pk, pk_len);
-
- verify = silc_calloc(1, sizeof(*verify));
- verify->client = client;
- verify->conn = conn;
- verify->filename = strdup(filename);
- verify->entity = strdup(entity);
- verify->pk = pk;
- verify->pk_len = pk_len;
- verify->pk_type = pk_type;
- verify->completion = completion;
- verify->context = context;
-
- /* Check whether this key already exists */
- if (stat(filename, &st) < 0) {
- /* Key does not exist, ask user to verify the key and save it */
-
- silc_say(client, conn, "Received %s public key", entity);
- silc_say(client, conn, "Fingerprint for the %s key is", entity);
- silc_say(client, conn, "%s", fingerprint);
-
- keyboard_entry_redirect((SIGNAL_FUNC)verify_public_key_completion,
- "Would you like to accept the key (y/n)? ", 0,
- verify);
- silc_free(fingerprint);
- return;
- } else {
- /* The key already exists, verify it. */
- SilcPublicKey public_key;
- unsigned char *encpk;
- uint32 encpk_len;
-
- /* Load the key file */
- if (!silc_pkcs_load_public_key(filename, &public_key,
- SILC_PKCS_FILE_PEM))
- if (!silc_pkcs_load_public_key(filename, &public_key,
- SILC_PKCS_FILE_BIN)) {
- silc_say(client, conn, "Received %s public key", entity);
- silc_say(client, conn, "Fingerprint for the %s key is", entity);
- silc_say(client, conn, "%s", fingerprint);
- silc_say(client, conn, "Could not load your local copy of the %s key",
- entity);
- keyboard_entry_redirect((SIGNAL_FUNC)verify_public_key_completion,
- "Would you like to accept the key "
- "anyway (y/n)? ", 0,
- verify);
- silc_free(fingerprint);
- return;
- }
-
- /* Encode the key data */
- encpk = silc_pkcs_public_key_encode(public_key, &encpk_len);
- if (!encpk) {
- silc_say(client, conn, "Received %s public key", entity);
- silc_say(client, conn, "Fingerprint for the %s key is", entity);
- silc_say(client, conn, "%s", fingerprint);
- silc_say(client, conn, "Your local copy of the %s key is malformed",
- entity);
- keyboard_entry_redirect((SIGNAL_FUNC)verify_public_key_completion,
- "Would you like to accept the key "
- "anyway (y/n)? ", 0,
- verify);
- silc_free(fingerprint);
- return;
- }
-
- /* Compare the keys */
- if (memcmp(encpk, pk, encpk_len)) {
- silc_say(client, conn, "Received %s public key", entity);
- silc_say(client, conn, "Fingerprint for the %s key is", entity);
- silc_say(client, conn, "%s", fingerprint);
- silc_say(client, conn, "%s key does not match with your local copy",
- entity);
- silc_say(client, conn,
- "It is possible that the key has expired or changed");
- silc_say(client, conn, "It is also possible that some one is performing "
- "man-in-the-middle attack");
-
- /* Ask user to verify the key and save it */
- keyboard_entry_redirect((SIGNAL_FUNC)verify_public_key_completion,
- "Would you like to accept the key "
- "anyway (y/n)? ", 0,
- verify);
- silc_free(fingerprint);
- return;
- }
-
- /* Local copy matched */
- if (completion)
- completion(TRUE, context);
- silc_free(fingerprint);
- }
-}
-
-/* Verifies received public key. The `conn_type' indicates which entity
- (server, client etc.) has sent the public key. If user decides to trust
- the key may be saved as trusted public key for later use. The
- `completion' must be called after the public key has been verified. */
-
-static void
-silc_verify_public_key(SilcClient client, SilcClientConnection conn,
- SilcSocketType conn_type, unsigned char *pk,
- uint32 pk_len, SilcSKEPKType pk_type,
- SilcVerifyPublicKey completion, void *context)
-{
- silc_verify_public_key_internal(client, conn, conn_type, pk,
- pk_len, pk_type,
- completion, context);
-}
-
-/* Asks passphrase from user on the input line. */
-
-typedef struct {
- SilcAskPassphrase completion;
- void *context;
-} *AskPassphrase;
-
-static void ask_passphrase_completion(const char *passphrase, void *context)
-{
- AskPassphrase p = (AskPassphrase)context;
- p->completion((unsigned char *)passphrase,
- passphrase ? strlen(passphrase) : 0, p->context);
- silc_free(p);
-}
-
-static void silc_ask_passphrase(SilcClient client, SilcClientConnection conn,
- SilcAskPassphrase completion, void *context)
-{
- AskPassphrase p = silc_calloc(1, sizeof(*p));
- p->completion = completion;
- p->context = context;
-
- keyboard_entry_redirect((SIGNAL_FUNC)ask_passphrase_completion,
- "Passphrase: ", ENTRY_REDIRECT_FLAG_HIDDEN, p);
-}
-
-/* Find authentication method and authentication data by hostname and
- port. The hostname may be IP address as well. The found authentication
- method and authentication data is returned to `auth_meth', `auth_data'
- and `auth_data_len'. The function returns TRUE if authentication method
- is found and FALSE if not. `conn' may be NULL. */
-
-static int
-silc_get_auth_method(SilcClient client, SilcClientConnection conn,
- char *hostname, uint16 port,
- SilcProtocolAuthMeth *auth_meth,
- unsigned char **auth_data,
- uint32 *auth_data_len)
-{
-
- /* XXX must resolve from configuration whether this connection has
- any specific authentication data */
-
- *auth_meth = SILC_AUTH_NONE;
- *auth_data = NULL;
- *auth_data_len = 0;
-
- return TRUE;
-}
-
-/* Notifies application that failure packet was received. This is called
- if there is some protocol active in the client. The `protocol' is the
- protocol context. The `failure' is opaque pointer to the failure
- indication. Note, that the `failure' is protocol dependant and application
- must explicitly cast it to correct type. Usually `failure' is 32 bit
- failure type (see protocol specs for all protocol failure types). */
-
-static void
-silc_failure(SilcClient client, SilcClientConnection conn,
- SilcProtocol protocol, void *failure)
-{
- if (protocol->protocol->type == SILC_PROTOCOL_CLIENT_KEY_EXCHANGE) {
- SilcSKEStatus status = (SilcSKEStatus)failure;
-
- if (status == SILC_SKE_STATUS_BAD_VERSION)
- silc_say_error("You are running incompatible client version (it may be "
- "too old or too new)");
- if (status == SILC_SKE_STATUS_UNSUPPORTED_PUBLIC_KEY)
- silc_say_error("Server does not support your public key type");
- if (status == SILC_SKE_STATUS_UNKNOWN_GROUP)
- silc_say_error("Server does not support one of your proposed KE group");
- if (status == SILC_SKE_STATUS_UNKNOWN_CIPHER)
- silc_say_error("Server does not support one of your proposed cipher");
- if (status == SILC_SKE_STATUS_UNKNOWN_PKCS)
- silc_say_error("Server does not support one of your proposed PKCS");
- if (status == SILC_SKE_STATUS_UNKNOWN_HASH_FUNCTION)
- silc_say_error("Server does not support one of your proposed "
- "hash function");
- if (status == SILC_SKE_STATUS_UNKNOWN_HMAC)
- silc_say_error("Server does not support one of your proposed HMAC");
- if (status == SILC_SKE_STATUS_INCORRECT_SIGNATURE)
- silc_say_error("Incorrect signature");
- }
-
- if (protocol->protocol->type == SILC_PROTOCOL_CLIENT_CONNECTION_AUTH) {
- uint32 err = (uint32)failure;
-
- if (err == SILC_AUTH_FAILED)
- silc_say(client, conn, "Authentication failed");
- }
-}
-
-/* Asks whether the user would like to perform the key agreement protocol.
- This is called after we have received an key agreement packet or an
- reply to our key agreement packet. This returns TRUE if the user wants
- the library to perform the key agreement protocol and FALSE if it is not
- desired (application may start it later by calling the function
- silc_client_perform_key_agreement). */
-
-static int
-silc_key_agreement(SilcClient client, SilcClientConnection conn,
- SilcClientEntry client_entry, char *hostname,
- int port,
- SilcKeyAgreementCallback *completion,
- void **context)
-{
- char host[256];
-
- /* We will just display the info on the screen and return FALSE and user
- will have to start the key agreement with a command. */
-
- if (hostname) {
- memset(host, 0, sizeof(host));
- snprintf(host, sizeof(host) - 1, "(%s on port %d)", hostname, port);
- }
-
- silc_say(client, conn, "%s wants to perform key agreement %s",
- client_entry->nickname, hostname ? host : "");
-
- *completion = NULL;
- *context = NULL;
-
- return FALSE;
-}
-
-/* SILC client operations */
-SilcClientOperations ops = {
- silc_say,
- silc_channel_message,
- silc_private_message,
- silc_notify,
- silc_command,
- silc_command_reply,
- silc_connect,
- silc_disconnect,
- silc_get_auth_method,
- silc_verify_public_key,
- silc_ask_passphrase,
- silc_failure,
- silc_key_agreement,
-};
-
static int my_silc_scheduler(void)
{
silc_schedule_one(0);
projects / silc.git / commitdiff