unsigned int arg_type,
unsigned char *arg,
unsigned int arg_len);
-void silc_server_command_send_users(SilcServer server,
- SilcSocketConnection sock,
- SilcChannelEntry channel,
- int pending);
+SILC_TASK_CALLBACK(silc_server_command_process_timeout);
/* Server command list. */
SilcServerCommand silc_command_list[] =
SILC_SERVER_CMD(whois, WHOIS, SILC_CF_LAG | SILC_CF_REG),
SILC_SERVER_CMD(whowas, WHOWAS, SILC_CF_LAG | SILC_CF_REG),
SILC_SERVER_CMD(identify, IDENTIFY, SILC_CF_LAG | SILC_CF_REG),
- SILC_SERVER_CMD(nick, NICK, SILC_CF_LAG | SILC_CF_REG),
- SILC_SERVER_CMD(list, LIST, SILC_CF_LAG | SILC_CF_REG),
+ SILC_SERVER_CMD(nick, NICK, SILC_CF_LAG_STRICT | SILC_CF_REG),
+ SILC_SERVER_CMD(list, LIST, SILC_CF_LAG_STRICT | SILC_CF_REG),
SILC_SERVER_CMD(topic, TOPIC, SILC_CF_LAG | SILC_CF_REG),
SILC_SERVER_CMD(invite, INVITE, SILC_CF_LAG | SILC_CF_REG),
SILC_SERVER_CMD(quit, QUIT, SILC_CF_LAG | SILC_CF_REG),
- SILC_SERVER_CMD(kill, KILL, SILC_CF_LAG | SILC_CF_REG | SILC_CF_OPER),
+ SILC_SERVER_CMD(kill, KILL, SILC_CF_LAG_STRICT | SILC_CF_REG | SILC_CF_OPER),
SILC_SERVER_CMD(info, INFO, SILC_CF_LAG | SILC_CF_REG),
SILC_SERVER_CMD(connect, CONNECT,
SILC_CF_LAG | SILC_CF_REG | SILC_CF_OPER),
SILC_SERVER_CMD(ping, PING, SILC_CF_LAG | SILC_CF_REG),
SILC_SERVER_CMD(oper, OPER, SILC_CF_LAG | SILC_CF_REG | SILC_CF_OPER),
- SILC_SERVER_CMD(join, JOIN, SILC_CF_LAG | SILC_CF_REG),
+ SILC_SERVER_CMD(join, JOIN, SILC_CF_LAG_STRICT | SILC_CF_REG),
SILC_SERVER_CMD(motd, MOTD, SILC_CF_LAG | SILC_CF_REG),
SILC_SERVER_CMD(umode, UMODE, SILC_CF_LAG | SILC_CF_REG),
- SILC_SERVER_CMD(cmode, CMODE, SILC_CF_LAG | SILC_CF_REG),
+ SILC_SERVER_CMD(cmode, CMODE, SILC_CF_LAG_STRICT | SILC_CF_REG),
SILC_SERVER_CMD(cumode, CUMODE, SILC_CF_LAG | SILC_CF_REG),
- SILC_SERVER_CMD(kick, KICK, SILC_CF_LAG | SILC_CF_REG),
+ SILC_SERVER_CMD(kick, KICK, SILC_CF_LAG_STRICT | SILC_CF_REG),
SILC_SERVER_CMD(restart, RESTART,
SILC_CF_LAG | SILC_CF_REG | SILC_CF_OPER),
SILC_SERVER_CMD(close, CLOSE,
SILC_CF_LAG | SILC_CF_REG | SILC_CF_OPER),
- SILC_SERVER_CMD(die, DIE, SILC_CF_LAG | SILC_CF_REG | SILC_CF_OPER),
+ SILC_SERVER_CMD(shutdown, SHUTDOWN, SILC_CF_LAG | SILC_CF_REG |
+ SILC_CF_OPER),
SILC_SERVER_CMD(silcoper, SILCOPER,
SILC_CF_LAG | SILC_CF_REG | SILC_CF_SILC_OPER),
- SILC_SERVER_CMD(leave, LEAVE, SILC_CF_LAG | SILC_CF_REG),
+ SILC_SERVER_CMD(leave, LEAVE, SILC_CF_LAG_STRICT | SILC_CF_REG),
SILC_SERVER_CMD(users, USERS, SILC_CF_LAG | SILC_CF_REG),
{ NULL, 0 },
return FALSE;
}
+/* Internal context to hold data when executed command with timeout. */
+typedef struct {
+ SilcServerCommandContext ctx;
+ SilcServerCommand *cmd;
+} *SilcServerCommandTimeout;
+
+/* Timeout callback to process commands with timeout for client. Client's
+ commands are always executed with timeout. */
+
+SILC_TASK_CALLBACK(silc_server_command_process_timeout)
+{
+ SilcServerCommandTimeout timeout = (SilcServerCommandTimeout)context;
+ SilcClientEntry client = (SilcClientEntry)timeout->ctx->sock->user_data;
+
+ /* Update access time */
+ client->last_command = time(NULL);
+
+ if (!(timeout->cmd->flags & SILC_CF_REG))
+ timeout->cmd->cb(timeout->ctx);
+ else if (silc_server_is_registered(timeout->ctx->server,
+ timeout->ctx->sock,
+ timeout->ctx,
+ timeout->cmd->cmd))
+ timeout->cmd->cb(timeout->ctx);
+
+ silc_free(timeout);
+}
+
/* Processes received command packet. */
void silc_server_command_process(SilcServer server,
SilcServerCommandContext ctx;
SilcServerCommand *cmd;
-#if 0
- /* XXX allow commands in but do not execute them more than once per
- two seconds. */
-
- /* Check whether it is allowed for this connection to execute any
- command. */
- if (sock->type == SILC_SOCKET_TYPE_CLIENT) {
- time_t curtime;
- SilcClientEntry client = (SilcClientEntry)sock->user_data;
-
- if (!client)
- return;
-
- /* Allow only one command executed in 2 seconds. */
- curtime = time(NULL);
- if (client->last_command && (curtime - client->last_command) < 2)
- return;
-
- /* Update access time */
- client->last_command = curtime;
- }
-#endif
-
/* Allocate command context. This must be free'd by the
command routine receiving it. */
ctx = silc_server_command_alloc();
}
ctx->args = silc_command_get_args(ctx->payload);
- /* Execute command. If this fails the packet is dropped. */
+ /* Get the command */
for (cmd = silc_command_list; cmd->cb; cmd++)
- if (cmd->cmd == silc_command_get(ctx->payload)) {
-
- if (!(cmd->flags & SILC_CF_REG)) {
- cmd->cb(ctx);
- break;
- }
-
- if (silc_server_is_registered(server, sock, ctx, cmd->cmd)) {
- cmd->cb(ctx);
- break;
- }
- }
+ if (cmd->cmd == silc_command_get(ctx->payload))
+ break;
if (cmd == NULL) {
SILC_LOG_ERROR(("Unknown command, packet dropped"));
silc_server_command_free(ctx);
return;
}
+
+ /* Execute client's commands always with timeout. Normally they are
+ executed with zero (0) timeout but if client is sending command more
+ frequently than once in 2 seconds, then the timeout may be 0 to 2
+ seconds. */
+ if (sock->type == SILC_SOCKET_TYPE_CLIENT) {
+ SilcClientEntry client = (SilcClientEntry)sock->user_data;
+ SilcServerCommandTimeout timeout = silc_calloc(1, sizeof(*timeout));
+ int fast;
+
+ timeout->ctx = ctx;
+ timeout->cmd = cmd;
+
+ if (client->last_command && (time(NULL) - client->last_command) < 2) {
+ client->fast_command++;
+ fast = FALSE;
+ } else {
+ client->fast_command = ((client->fast_command - 1) <= 0 ? 0 :
+ client->fast_command--);
+ fast = TRUE;
+ }
+
+ if (!fast && ((cmd->flags & SILC_CF_LAG_STRICT) ||
+ (client->fast_command > 5 && cmd->flags & SILC_CF_LAG)))
+ silc_task_register(server->timeout_queue, sock->sock,
+ silc_server_command_process_timeout,
+ (void *)timeout,
+ 2 - (time(NULL) - client->last_command), 0,
+ SILC_TASK_TIMEOUT,
+ SILC_TASK_PRI_NORMAL);
+ else
+ silc_task_register(server->timeout_queue, sock->sock,
+ silc_server_command_process_timeout,
+ (void *)timeout,
+ 0, 1,
+ SILC_TASK_TIMEOUT,
+ SILC_TASK_PRI_NORMAL);
+ return;
+ }
+
+ /* Execute for server */
+
+ if (!(cmd->flags & SILC_CF_REG))
+ cmd->cb(ctx);
+ else if (silc_server_is_registered(server, sock, ctx, cmd->cmd))
+ cmd->cb(ctx);
}
/* Allocate Command Context */
*client_id_count = 1;
/* Take all ID's from the command packet */
- if (argc > 3) {
- for (k = 1, i = 4; i < argc + 1; i++) {
- tmp = silc_argument_get_arg_type(cmd->args, i, &len);
+ if (argc > 1) {
+ for (k = 1, i = 1; i < argc; i++) {
+ tmp = silc_argument_get_arg_type(cmd->args, i + 3, &len);
if (tmp) {
*client_id = silc_realloc(*client_id, sizeof(**client_id) *
(*client_id_count + 1));
for (i = 0; i < clients_count; i++) {
entry = clients[i];
+ if (entry->connection && entry->data.registered == FALSE) {
+ if (clients_count == 1)
+ silc_server_command_send_status_data(cmd, SILC_COMMAND_WHOIS,
+ SILC_STATUS_ERR_NO_SUCH_NICK,
+ 3, entry->nickname,
+ strlen(entry->nickname));
+ continue;
+ }
+
if (count && i - 1 == count)
break;
idp = silc_id_payload_encode(entry->id, SILC_ID_CLIENT);
tmp = silc_argument_get_first_arg(cmd->args, NULL);
- /* XXX */
{
char nh[256], uh[256];
unsigned char idle[4];
SILC_PUT32_MSB((time(NULL) - entry->data.last_receive), idle);
- /* XXX */
- if (entry->userinfo)
- packet =
- silc_command_reply_payload_encode_va(SILC_COMMAND_WHOIS,
- status, ident, 5,
- 2, idp->data, idp->len,
- 3, nh, strlen(nh),
- 4, uh, strlen(uh),
- 5, entry->userinfo,
- strlen(entry->userinfo),
- 7, idle, 4);
- else
- packet =
- silc_command_reply_payload_encode_va(SILC_COMMAND_WHOIS,
- status, ident, 4,
- 2, idp->data, idp->len,
- 3, nh, strlen(nh),
- 4, uh, strlen(uh),
- 7, idle, 4);
+ packet =
+ silc_command_reply_payload_encode_va(SILC_COMMAND_WHOIS,
+ status, ident, 5,
+ 2, idp->data, idp->len,
+ 3, nh, strlen(nh),
+ 4, uh, strlen(uh),
+ 5, entry->userinfo,
+ strlen(entry->userinfo),
+ 7, idle, 4);
}
silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY,
clients = silc_idlist_get_clients_by_nickname(server->local_list,
nick, server_name,
&clients_count);
+ if (!clients)
+ clients = silc_idlist_get_clients_by_hash(server->local_list,
+ nick, server->md5hash,
+ &clients_count);
}
/* Check global list as well */
clients = silc_idlist_get_clients_by_nickname(server->global_list,
nick, server_name,
&clients_count);
+ if (!clients)
+ clients = silc_idlist_get_clients_by_hash(server->global_list,
+ nick, server->md5hash,
+ &clients_count);
}
}
silc_server_command_free(cmd);
}
-SILC_SERVER_CMD_FUNC(whowas)
-{
-}
-
/******************************************************************************
- IDENTIFY Functions
+ WHOWAS Functions
******************************************************************************/
-/* Checks that all mandatory fields are present. If not then send WHOIS
- request to the server who owns the client. We use WHOIS because we want
- to get as much information as possible at once. */
-
-static char
-silc_server_command_identify_check(SilcServerCommandContext cmd,
- SilcClientEntry *clients,
- unsigned int clients_count)
+static int
+silc_server_command_whowas_parse(SilcServerCommandContext cmd,
+ char **nickname,
+ char **server_name,
+ int *count)
{
- SilcServer server = cmd->server;
- int i;
- SilcClientEntry entry;
-
- for (i = 0; i < clients_count; i++) {
- entry = clients[i];
-
- if (!entry->nickname) {
- SilcBuffer tmpbuf;
- unsigned short old_ident;
-
- if (!entry->router)
- continue;
-
- old_ident = silc_command_get_ident(cmd->payload);
- silc_command_set_ident(cmd->payload, silc_rng_get_rn16(server->rng));
- silc_command_set_command(cmd->payload, SILC_COMMAND_WHOIS);
- tmpbuf = silc_command_payload_encode_payload(cmd->payload);
-
- /* Send WHOIS request. We send WHOIS since we're doing the requesting
- now anyway so make it a good one. */
- silc_server_packet_send(server, entry->router->connection,
- SILC_PACKET_COMMAND, cmd->packet->flags,
- tmpbuf->data, tmpbuf->len, TRUE);
-
- /* Reprocess this packet after received reply */
- silc_server_command_pending(server, SILC_COMMAND_WHOIS,
- silc_command_get_ident(cmd->payload),
- silc_server_command_destructor,
- silc_server_command_identify,
- silc_server_command_dup(cmd));
+ unsigned char *tmp;
+ unsigned int len;
- cmd->pending = TRUE;
-
- /* Put old data back to the Command Payload we just changed */
- silc_command_set_ident(cmd->payload, old_ident);
- silc_command_set_command(cmd->payload, SILC_COMMAND_IDENTIFY);
+ tmp = silc_argument_get_arg_type(cmd->args, 1, &len);
+ if (!tmp) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_WHOWAS,
+ SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
+ return FALSE;
+ }
- silc_buffer_free(tmpbuf);
- return FALSE;
- }
+ /* Get the nickname@server string and parse it. */
+ if (strchr(tmp, '@')) {
+ len = strcspn(tmp, "@");
+ *nickname = silc_calloc(len + 1, sizeof(char));
+ memcpy(*nickname, tmp, len);
+ *server_name = silc_calloc(strlen(tmp) - len, sizeof(char));
+ memcpy(*server_name, tmp + len + 1, strlen(tmp) - len - 1);
+ } else {
+ *nickname = strdup(tmp);
}
+ /* Get the max count of reply messages allowed */
+ tmp = silc_argument_get_arg_type(cmd->args, 2, NULL);
+ if (tmp)
+ *count = atoi(tmp);
+ else
+ *count = 0;
return TRUE;
}
static void
-silc_server_command_identify_send_reply(SilcServerCommandContext cmd,
- SilcClientEntry *clients,
- unsigned int clients_count)
+silc_server_command_whowas_send_reply(SilcServerCommandContext cmd,
+ SilcClientEntry *clients,
+ unsigned int clients_count)
{
SilcServer server = cmd->server;
char *tmp;
int i, count = 0, len;
SilcBuffer packet, idp;
- SilcClientEntry entry;
+ SilcClientEntry entry = NULL;
SilcCommandStatus status;
unsigned short ident = silc_command_get_ident(cmd->payload);
+ char found = FALSE;
status = SILC_STATUS_OK;
if (clients_count > 1)
for (i = 0; i < clients_count; i++) {
entry = clients[i];
+ /* We will take only clients that are not valid anymore. They are the
+ ones that are not registered anymore but still have a ID. They
+ have disconnected us, and thus valid for WHOWAS. */
+ if (entry->data.registered == TRUE)
+ continue;
+ if (entry->id == NULL)
+ continue;
+
if (count && i - 1 == count)
break;
+ found = TRUE;
+
if (clients_count > 2)
status = SILC_STATUS_LIST_ITEM;
if (clients_count > 1 && i == clients_count - 1)
status = SILC_STATUS_LIST_END;
- /* Send IDENTIFY reply */
+ /* Sanity check, however these should never fail. However, as
+ this sanity check has been added here they have failed. */
+ if (!entry->nickname || !entry->username)
+ continue;
+
+ /* Send WHOWAS reply */
idp = silc_id_payload_encode(entry->id, SILC_ID_CLIENT);
tmp = silc_argument_get_first_arg(cmd->args, NULL);
- /* XXX */
{
char nh[256], uh[256];
- SilcSocketConnection hsock;
memset(uh, 0, sizeof(uh));
memset(nh, 0, sizeof(nh));
-
+
strncat(nh, entry->nickname, strlen(entry->nickname));
if (!strchr(entry->nickname, '@')) {
strncat(nh, "@", 1);
server->server_name, len);
}
- if (!entry->username) {
- packet = silc_command_reply_payload_encode_va(SILC_COMMAND_IDENTIFY,
- SILC_STATUS_OK, ident, 2,
- 2, idp->data, idp->len,
- 3, nh, strlen(nh));
- } else {
- strncat(uh, entry->username, strlen(entry->username));
- if (!strchr(entry->username, '@')) {
- strncat(uh, "@", 1);
- hsock = (SilcSocketConnection)entry->connection;
- len = strlen(hsock->hostname);
- strncat(uh, hsock->hostname, len);
- }
-
- packet = silc_command_reply_payload_encode_va(SILC_COMMAND_IDENTIFY,
- SILC_STATUS_OK, ident, 3,
- 2, idp->data, idp->len,
- 3, nh, strlen(nh),
- 4, uh, strlen(uh));
+ strncat(uh, entry->username, strlen(entry->username));
+ if (!strchr(entry->username, '@')) {
+ strncat(uh, "@", 1);
+ strcat(uh, "*private*");
}
- silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY,
- 0, packet->data, packet->len, FALSE);
-
- silc_buffer_free(packet);
- silc_buffer_free(idp);
+ packet =
+ silc_command_reply_payload_encode_va(SILC_COMMAND_WHOWAS,
+ status, ident, 4,
+ 2, idp->data, idp->len,
+ 3, nh, strlen(nh),
+ 4, uh, strlen(uh),
+ 5, entry->userinfo,
+ strlen(entry->userinfo));
}
+
+ silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY,
+ 0, packet->data, packet->len, FALSE);
+
+ silc_buffer_free(packet);
+ silc_buffer_free(idp);
}
+
+ if (found == FALSE && entry)
+ silc_server_command_send_status_data(cmd, SILC_COMMAND_WHOWAS,
+ SILC_STATUS_ERR_NO_SUCH_NICK,
+ 3, entry->nickname,
+ strlen(entry->nickname));
}
static int
-silc_server_command_identify_from_client(SilcServerCommandContext cmd)
+silc_server_command_whowas_from_client(SilcServerCommandContext cmd)
{
SilcServer server = cmd->server;
char *nick = NULL, *server_name = NULL;
- int count = 0, clients_count = 0;
- SilcClientEntry *clients = NULL, entry;
- SilcClientID **client_id = NULL;
- unsigned int client_id_count = 0;
- int i, ret = 0;
+ int count = 0, clients_count = 0;
+ SilcClientEntry *clients = NULL;
+ int ret = 0;
- /* Protocol dictates that we must always send the received IDENTIFY request
+ /* Protocol dictates that we must always send the received WHOWAS request
to our router if we are normal server, so let's do it now unless we
are standalone. We will not send any replies to the client until we
have received reply from the router. */
silc_command_set_ident(cmd->payload, silc_rng_get_rn16(server->rng));
tmpbuf = silc_command_payload_encode_payload(cmd->payload);
- /* Send IDENTIFY command to our router */
+ /* Send WHOWAS command to our router */
silc_server_packet_send(server, (SilcSocketConnection)
server->router->connection,
SILC_PACKET_COMMAND, cmd->packet->flags,
tmpbuf->data, tmpbuf->len, TRUE);
/* Reprocess this packet after received reply from router */
- silc_server_command_pending(server, SILC_COMMAND_IDENTIFY,
+ silc_server_command_pending(server, SILC_COMMAND_WHOWAS,
silc_command_get_ident(cmd->payload),
silc_server_command_destructor,
- silc_server_command_identify,
+ silc_server_command_whois,
silc_server_command_dup(cmd));
cmd->pending = TRUE;
/* We are ready to process the command request. Let's search for the
requested client and send reply to the requesting client. */
- /* Parse the IDENTIFY request */
- if (!silc_server_command_whois_parse(cmd, &client_id, &client_id_count,
- &nick, &server_name, &count,
- SILC_COMMAND_IDENTIFY))
+ /* Parse the whowas request */
+ if (!silc_server_command_whowas_parse(cmd, &nick, &server_name, &count))
return 0;
- /* Get all clients matching that ID or nickname from local list */
- if (client_id_count) {
- /* Check all Client ID's received in the command packet */
- for (i = 0; i < client_id_count; i++) {
- entry = silc_idlist_find_client_by_id(server->local_list,
- client_id[i], NULL);
- if (entry) {
- clients = silc_realloc(clients, sizeof(*clients) *
- (clients_count + 1));
- clients[clients_count++] = entry;
- }
- }
- } else {
- clients = silc_idlist_get_clients_by_nickname(server->local_list,
- nick, server_name,
- &clients_count);
- }
+ /* Get all clients matching that nickname from local list */
+ clients = silc_idlist_get_clients_by_nickname(server->local_list,
+ nick, server_name,
+ &clients_count);
+ if (!clients)
+ clients = silc_idlist_get_clients_by_hash(server->local_list,
+ nick, server->md5hash,
+ &clients_count);
/* Check global list as well */
if (!clients) {
- if (client_id_count) {
- /* Check all Client ID's received in the command packet */
- for (i = 0; i < client_id_count; i++) {
- entry = silc_idlist_find_client_by_id(server->global_list,
- client_id[i], NULL);
- if (entry) {
- clients = silc_realloc(clients, sizeof(*clients) *
- (clients_count + 1));
- clients[clients_count++] = entry;
- }
- }
- } else {
- clients = silc_idlist_get_clients_by_nickname(server->global_list,
- nick, server_name,
- &clients_count);
- }
+ clients = silc_idlist_get_clients_by_nickname(server->global_list,
+ nick, server_name,
+ &clients_count);
+ if (!clients)
+ clients = silc_idlist_get_clients_by_hash(server->global_list,
+ nick, server->md5hash,
+ &clients_count);
}
if (!clients) {
- /* Such a client really does not exist in the SILC network. */
- if (!client_id_count) {
- silc_server_command_send_status_data(cmd, SILC_COMMAND_IDENTIFY,
- SILC_STATUS_ERR_NO_SUCH_NICK,
- 3, nick, strlen(nick));
- } else {
- SilcBuffer idp = silc_id_payload_encode(client_id[0], SILC_ID_CLIENT);
- silc_server_command_send_status_data(cmd, SILC_COMMAND_IDENTIFY,
- SILC_STATUS_ERR_NO_SUCH_CLIENT_ID,
- 2, idp->data, idp->len);
- silc_buffer_free(idp);
- }
- goto out;
- }
-
- /* Check that all mandatory fields are present and request those data
- from the server who owns the client if necessary. */
- if (!silc_server_command_identify_check(cmd, clients, clients_count)) {
- ret = -1;
+ /* Such client(s) really does not exist in the SILC network. */
+ silc_server_command_send_status_data(cmd, SILC_COMMAND_WHOWAS,
+ SILC_STATUS_ERR_NO_SUCH_NICK,
+ 3, nick, strlen(nick));
goto out;
}
/* Send the command reply to the client */
- silc_server_command_identify_send_reply(cmd, clients, clients_count);
+ silc_server_command_whowas_send_reply(cmd, clients, clients_count);
out:
- if (client_id_count) {
- for (i = 0; i < client_id_count; i++)
- silc_free(client_id[i]);
- silc_free(client_id);
- }
if (clients)
silc_free(clients);
if (nick)
}
static int
-silc_server_command_identify_from_server(SilcServerCommandContext cmd)
+silc_server_command_whowas_from_server(SilcServerCommandContext cmd)
{
SilcServer server = cmd->server;
char *nick = NULL, *server_name = NULL;
int count = 0, clients_count = 0;
- SilcClientEntry *clients = NULL, entry;
- SilcClientID **client_id = NULL;
+ SilcClientEntry *clients = NULL;
+ int ret = 0;
+
+ /* Parse the whowas request */
+ if (!silc_server_command_whowas_parse(cmd, &nick, &server_name, &count))
+ return 0;
+
+ /* Process the command request. Let's search for the requested client and
+ send reply to the requesting server. */
+
+ clients = silc_idlist_get_clients_by_nickname(server->local_list,
+ nick, server_name,
+ &clients_count);
+ if (!clients)
+ clients = silc_idlist_get_clients_by_hash(server->local_list,
+ nick, server->md5hash,
+ &clients_count);
+
+ /* If we are router we will check our global list as well. */
+ if (!clients && server->server_type == SILC_ROUTER) {
+ clients = silc_idlist_get_clients_by_nickname(server->global_list,
+ nick, server_name,
+ &clients_count);
+ if (!clients)
+ clients = silc_idlist_get_clients_by_hash(server->global_list,
+ nick, server->md5hash,
+ &clients_count);
+ }
+
+ if (!clients) {
+ /* Such a client really does not exist in the SILC network. */
+ silc_server_command_send_status_data(cmd, SILC_COMMAND_WHOWAS,
+ SILC_STATUS_ERR_NO_SUCH_NICK,
+ 3, nick, strlen(nick));
+ goto out;
+ }
+
+ /* Send the command reply to the client */
+ silc_server_command_whowas_send_reply(cmd, clients, clients_count);
+
+ out:
+ if (clients)
+ silc_free(clients);
+ if (nick)
+ silc_free(nick);
+ if (server_name)
+ silc_free(server_name);
+
+ return ret;
+}
+
+/* Server side of command WHOWAS. */
+
+SILC_SERVER_CMD_FUNC(whowas)
+{
+ SilcServerCommandContext cmd = (SilcServerCommandContext)context;
+ int ret = 0;
+
+ SILC_SERVER_COMMAND_CHECK_ARGC(SILC_COMMAND_WHOWAS, cmd, 1, 2);
+
+ if (cmd->sock->type == SILC_SOCKET_TYPE_CLIENT)
+ ret = silc_server_command_whowas_from_client(cmd);
+ else if ((cmd->sock->type == SILC_SOCKET_TYPE_SERVER) ||
+ (cmd->sock->type == SILC_SOCKET_TYPE_ROUTER))
+ ret = silc_server_command_whowas_from_server(cmd);
+
+ if (!ret)
+ silc_server_command_free(cmd);
+}
+
+/******************************************************************************
+
+ IDENTIFY Functions
+
+******************************************************************************/
+
+/* Checks that all mandatory fields are present. If not then send WHOIS
+ request to the server who owns the client. We use WHOIS because we want
+ to get as much information as possible at once. */
+
+static char
+silc_server_command_identify_check(SilcServerCommandContext cmd,
+ SilcClientEntry *clients,
+ unsigned int clients_count)
+{
+ SilcServer server = cmd->server;
+ int i;
+ SilcClientEntry entry;
+
+ for (i = 0; i < clients_count; i++) {
+ entry = clients[i];
+
+ if (!entry->nickname) {
+ SilcBuffer tmpbuf;
+ unsigned short old_ident;
+
+ if (!entry->router)
+ continue;
+
+ old_ident = silc_command_get_ident(cmd->payload);
+ silc_command_set_ident(cmd->payload, silc_rng_get_rn16(server->rng));
+ silc_command_set_command(cmd->payload, SILC_COMMAND_WHOIS);
+ tmpbuf = silc_command_payload_encode_payload(cmd->payload);
+
+ /* Send WHOIS request. We send WHOIS since we're doing the requesting
+ now anyway so make it a good one. */
+ silc_server_packet_send(server, entry->router->connection,
+ SILC_PACKET_COMMAND, cmd->packet->flags,
+ tmpbuf->data, tmpbuf->len, TRUE);
+
+ /* Reprocess this packet after received reply */
+ silc_server_command_pending(server, SILC_COMMAND_WHOIS,
+ silc_command_get_ident(cmd->payload),
+ silc_server_command_destructor,
+ silc_server_command_identify,
+ silc_server_command_dup(cmd));
+
+ cmd->pending = TRUE;
+
+ /* Put old data back to the Command Payload we just changed */
+ silc_command_set_ident(cmd->payload, old_ident);
+ silc_command_set_command(cmd->payload, SILC_COMMAND_IDENTIFY);
+
+ silc_buffer_free(tmpbuf);
+ return FALSE;
+ }
+ }
+
+ return TRUE;
+}
+
+static void
+silc_server_command_identify_send_reply(SilcServerCommandContext cmd,
+ SilcClientEntry *clients,
+ unsigned int clients_count)
+{
+ SilcServer server = cmd->server;
+ char *tmp;
+ int i, count = 0, len;
+ SilcBuffer packet, idp;
+ SilcClientEntry entry;
+ SilcCommandStatus status;
+ unsigned short ident = silc_command_get_ident(cmd->payload);
+
+ status = SILC_STATUS_OK;
+ if (clients_count > 1)
+ status = SILC_STATUS_LIST_START;
+
+ for (i = 0; i < clients_count; i++) {
+ entry = clients[i];
+
+ if (entry->connection && entry->data.registered == FALSE) {
+ if (clients_count == 1)
+ silc_server_command_send_status_data(cmd, SILC_COMMAND_IDENTIFY,
+ SILC_STATUS_ERR_NO_SUCH_NICK,
+ 3, entry->nickname,
+ strlen(entry->nickname));
+ continue;
+ }
+
+ if (count && i - 1 == count)
+ break;
+
+ if (clients_count > 2)
+ status = SILC_STATUS_LIST_ITEM;
+
+ if (clients_count > 1 && i == clients_count - 1)
+ status = SILC_STATUS_LIST_END;
+
+ /* Send IDENTIFY reply */
+ idp = silc_id_payload_encode(entry->id, SILC_ID_CLIENT);
+ tmp = silc_argument_get_first_arg(cmd->args, NULL);
+
+ /* XXX */
+ {
+ char nh[256], uh[256];
+ SilcSocketConnection hsock;
+
+ memset(uh, 0, sizeof(uh));
+ memset(nh, 0, sizeof(nh));
+
+ strncat(nh, entry->nickname, strlen(entry->nickname));
+ if (!strchr(entry->nickname, '@')) {
+ strncat(nh, "@", 1);
+ len = entry->router ? strlen(entry->router->server_name) :
+ strlen(server->server_name);
+ strncat(nh, entry->router ? entry->router->server_name :
+ server->server_name, len);
+ }
+
+ if (!entry->username) {
+ packet = silc_command_reply_payload_encode_va(SILC_COMMAND_IDENTIFY,
+ status, ident, 2,
+ 2, idp->data, idp->len,
+ 3, nh, strlen(nh));
+ } else {
+ strncat(uh, entry->username, strlen(entry->username));
+ if (!strchr(entry->username, '@')) {
+ strncat(uh, "@", 1);
+ hsock = (SilcSocketConnection)entry->connection;
+ len = strlen(hsock->hostname);
+ strncat(uh, hsock->hostname, len);
+ }
+
+ packet = silc_command_reply_payload_encode_va(SILC_COMMAND_IDENTIFY,
+ status, ident, 3,
+ 2, idp->data, idp->len,
+ 3, nh, strlen(nh),
+ 4, uh, strlen(uh));
+ }
+
+ silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY,
+ 0, packet->data, packet->len, FALSE);
+
+ silc_buffer_free(packet);
+ silc_buffer_free(idp);
+ }
+ }
+}
+
+static int
+silc_server_command_identify_from_client(SilcServerCommandContext cmd)
+{
+ SilcServer server = cmd->server;
+ char *nick = NULL, *server_name = NULL;
+ int count = 0, clients_count = 0;
+ SilcClientEntry *clients = NULL, entry;
+ SilcClientID **client_id = NULL;
unsigned int client_id_count = 0;
int i, ret = 0;
+ /* Protocol dictates that we must always send the received IDENTIFY request
+ to our router if we are normal server, so let's do it now unless we
+ are standalone. We will not send any replies to the client until we
+ have received reply from the router. */
+ if (server->server_type == SILC_SERVER &&
+ !cmd->pending && !server->standalone) {
+ SilcBuffer tmpbuf;
+ unsigned short old_ident;
+
+ old_ident = silc_command_get_ident(cmd->payload);
+ silc_command_set_ident(cmd->payload, silc_rng_get_rn16(server->rng));
+ tmpbuf = silc_command_payload_encode_payload(cmd->payload);
+
+ /* Send IDENTIFY command to our router */
+ silc_server_packet_send(server, (SilcSocketConnection)
+ server->router->connection,
+ SILC_PACKET_COMMAND, cmd->packet->flags,
+ tmpbuf->data, tmpbuf->len, TRUE);
+
+ /* Reprocess this packet after received reply from router */
+ silc_server_command_pending(server, SILC_COMMAND_IDENTIFY,
+ silc_command_get_ident(cmd->payload),
+ silc_server_command_destructor,
+ silc_server_command_identify,
+ silc_server_command_dup(cmd));
+ cmd->pending = TRUE;
+
+ silc_command_set_ident(cmd->payload, old_ident);
+
+ silc_buffer_free(tmpbuf);
+ ret = -1;
+ goto out;
+ }
+
+ /* We are ready to process the command request. Let's search for the
+ requested client and send reply to the requesting client. */
+
/* Parse the IDENTIFY request */
if (!silc_server_command_whois_parse(cmd, &client_id, &client_id_count,
&nick, &server_name, &count,
SILC_COMMAND_IDENTIFY))
return 0;
- /* Process the command request. Let's search for the requested client and
- send reply to the requesting server. */
-
- if (client_id_count) {
+ /* Get all clients matching that ID or nickname from local list */
+ if (client_id_count) {
/* Check all Client ID's received in the command packet */
for (i = 0; i < client_id_count; i++) {
entry = silc_idlist_find_client_by_id(server->local_list,
&clients_count);
}
- /* If we are router we will check our global list as well. */
- if (!clients && server->server_type == SILC_ROUTER) {
+ /* Check global list as well */
+ if (!clients) {
if (client_id_count) {
/* Check all Client ID's received in the command packet */
for (i = 0; i < client_id_count; i++) {
&clients_count);
}
}
-
+
if (!clients) {
/* Such a client really does not exist in the SILC network. */
if (!client_id_count) {
goto out;
}
- /* Send the command reply */
+ /* Send the command reply to the client */
silc_server_command_identify_send_reply(cmd, clients, clients_count);
out:
return ret;
}
-SILC_SERVER_CMD_FUNC(identify)
+static int
+silc_server_command_identify_from_server(SilcServerCommandContext cmd)
{
- SilcServerCommandContext cmd = (SilcServerCommandContext)context;
+ SilcServer server = cmd->server;
+ char *nick = NULL, *server_name = NULL;
+ int count = 0, clients_count = 0;
+ SilcClientEntry *clients = NULL, entry;
+ SilcClientID **client_id = NULL;
+ unsigned int client_id_count = 0;
+ int i, ret = 0;
+
+ /* Parse the IDENTIFY request */
+ if (!silc_server_command_whois_parse(cmd, &client_id, &client_id_count,
+ &nick, &server_name, &count,
+ SILC_COMMAND_IDENTIFY))
+ return 0;
+
+ /* Process the command request. Let's search for the requested client and
+ send reply to the requesting server. */
+
+ if (client_id_count) {
+ /* Check all Client ID's received in the command packet */
+ for (i = 0; i < client_id_count; i++) {
+ entry = silc_idlist_find_client_by_id(server->local_list,
+ client_id[i], NULL);
+ if (entry) {
+ clients = silc_realloc(clients, sizeof(*clients) *
+ (clients_count + 1));
+ clients[clients_count++] = entry;
+ }
+ }
+ } else {
+ clients = silc_idlist_get_clients_by_nickname(server->local_list,
+ nick, server_name,
+ &clients_count);
+ if (!clients)
+ clients = silc_idlist_get_clients_by_hash(server->local_list,
+ nick, server->md5hash,
+ &clients_count);
+ }
+
+ /* If we are router we will check our global list as well. */
+ if (!clients && server->server_type == SILC_ROUTER) {
+ if (client_id_count) {
+ /* Check all Client ID's received in the command packet */
+ for (i = 0; i < client_id_count; i++) {
+ entry = silc_idlist_find_client_by_id(server->global_list,
+ client_id[i], NULL);
+ if (entry) {
+ clients = silc_realloc(clients, sizeof(*clients) *
+ (clients_count + 1));
+ clients[clients_count++] = entry;
+ }
+ }
+ } else {
+ clients = silc_idlist_get_clients_by_nickname(server->global_list,
+ nick, server_name,
+ &clients_count);
+ if (!clients)
+ clients = silc_idlist_get_clients_by_hash(server->global_list,
+ nick, server->md5hash,
+ &clients_count);
+ }
+ }
+
+ if (!clients) {
+ /* Such a client really does not exist in the SILC network. */
+ if (!client_id_count) {
+ silc_server_command_send_status_data(cmd, SILC_COMMAND_IDENTIFY,
+ SILC_STATUS_ERR_NO_SUCH_NICK,
+ 3, nick, strlen(nick));
+ } else {
+ SilcBuffer idp = silc_id_payload_encode(client_id[0], SILC_ID_CLIENT);
+ silc_server_command_send_status_data(cmd, SILC_COMMAND_IDENTIFY,
+ SILC_STATUS_ERR_NO_SUCH_CLIENT_ID,
+ 2, idp->data, idp->len);
+ silc_buffer_free(idp);
+ }
+ goto out;
+ }
+
+ /* Check that all mandatory fields are present and request those data
+ from the server who owns the client if necessary. */
+ if (!silc_server_command_identify_check(cmd, clients, clients_count)) {
+ ret = -1;
+ goto out;
+ }
+
+ /* Send the command reply */
+ silc_server_command_identify_send_reply(cmd, clients, clients_count);
+
+ out:
+ if (client_id_count) {
+ for (i = 0; i < client_id_count; i++)
+ silc_free(client_id[i]);
+ silc_free(client_id);
+ }
+ if (clients)
+ silc_free(clients);
+ if (nick)
+ silc_free(nick);
+ if (server_name)
+ silc_free(server_name);
+
+ return ret;
+}
+
+SILC_SERVER_CMD_FUNC(identify)
+{
+ SilcServerCommandContext cmd = (SilcServerCommandContext)context;
int ret = 0;
SILC_SERVER_COMMAND_CHECK_ARGC(SILC_COMMAND_IDENTIFY, cmd, 1, 3328);
SilcClientID *new_id;
char *nick;
+ if (cmd->sock->type != SILC_SOCKET_TYPE_CLIENT)
+ goto out;
+
SILC_SERVER_COMMAND_CHECK_ARGC(SILC_COMMAND_NICK, cmd, 1, 1);
/* Check nickname */
goto out;
}
+ if (strlen(nick) > 128)
+ nick[127] = '\0';
+
/* Create new Client ID */
silc_id_create_client_id(cmd->server->id, cmd->server->rng,
cmd->server->md5hash, nick,
/* Update client cache */
silc_idcache_add(server->local_list->clients, client->nickname,
- SILC_ID_CLIENT, client->id, (void *)client, TRUE);
+ SILC_ID_CLIENT, client->id, (void *)client, TRUE, FALSE);
nidp = silc_id_payload_encode(client->id, SILC_ID_CLIENT);
/* Send NICK_CHANGE notify to the client's channels */
- silc_server_send_notify_on_channels(server, client,
+ silc_server_send_notify_on_channels(server, NULL, client,
SILC_NOTIFY_TYPE_NICK_CHANGE, 2,
oidp->data, oidp->len,
nidp->data, nidp->len);
channel = silc_idlist_find_channel_by_id(server->local_list,
channel_id, NULL);
if (!channel) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_TOPIC,
- SILC_STATUS_ERR_NO_SUCH_CHANNEL);
- goto out;
+ channel = silc_idlist_find_channel_by_id(server->global_list,
+ channel_id, NULL);
+ if (!channel) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_TOPIC,
+ SILC_STATUS_ERR_NO_SUCH_CHANNEL);
+ goto out;
+ }
}
if (argc > 1) {
channel = silc_idlist_find_channel_by_id(server->local_list,
channel_id, NULL);
if (!channel) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_INVITE,
- SILC_STATUS_ERR_NO_SUCH_CHANNEL);
- goto out;
+ channel = silc_idlist_find_channel_by_id(server->global_list,
+ channel_id, NULL);
+ if (!channel) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_INVITE,
+ SILC_STATUS_ERR_NO_SUCH_CHANNEL);
+ goto out;
+ }
}
/* Check whether the sender of this command is on the channel. */
silc_server_command_free(cmd);
}
+typedef struct {
+ SilcServer server;
+ SilcSocketConnection sock;
+ char *signoff;
+} *QuitInternal;
+
/* Quits connection to client. This gets called if client won't
close the connection even when it has issued QUIT command. */
SILC_TASK_CALLBACK(silc_server_command_quit_cb)
{
- SilcServer server = (SilcServer)context;
- SilcSocketConnection sock = server->sockets[fd];
+ QuitInternal q = (QuitInternal)context;
/* Free all client specific data, such as client entry and entires
on channels this client may be on. */
- silc_server_free_sock_user_data(server, sock);
+ silc_server_free_client_data(q->server, q->sock, q->sock->user_data,
+ q->signoff);
+ q->sock->user_data = NULL;
/* Close the connection on our side */
- silc_server_close_connection(server, sock);
+ silc_server_close_connection(q->server, q->sock);
+
+ silc_free(q->signoff);
+ silc_free(q);
}
/* Quits SILC session. This is the normal way to disconnect client. */
SilcServerCommandContext cmd = (SilcServerCommandContext)context;
SilcServer server = cmd->server;
SilcSocketConnection sock = cmd->sock;
+ QuitInternal q;
+ unsigned char *tmp = NULL;
+ unsigned int len = 0;
- SILC_LOG_DEBUG(("Start"));
+ SILC_SERVER_COMMAND_CHECK_ARGC(SILC_COMMAND_QUIT, cmd, 0, 1);
+
+ if (cmd->sock->type != SILC_SOCKET_TYPE_CLIENT)
+ goto out;
+
+ /* Get destination ID */
+ tmp = silc_argument_get_arg_type(cmd->args, 1, &len);
+ if (len > 128)
+ tmp = NULL;
+
+ q = silc_calloc(1, sizeof(*q));
+ q->server = server;
+ q->sock = sock;
+ q->signoff = tmp ? strdup(tmp) : NULL;
/* We quit the connection with little timeout */
silc_task_register(server->timeout_queue, sock->sock,
- silc_server_command_quit_cb, server,
- 0, 300000, SILC_TASK_TIMEOUT, SILC_TASK_PRI_LOW);
+ silc_server_command_quit_cb, (void *)q,
+ 0, 200000, SILC_TASK_TIMEOUT, SILC_TASK_PRI_LOW);
+ out:
silc_server_command_free(cmd);
}
+/* Server side of command KILL. This command is used by router operator
+ to remove an client from the SILC Network temporarily. */
+
SILC_SERVER_CMD_FUNC(kill)
{
+ SilcServerCommandContext cmd = (SilcServerCommandContext)context;
+ SilcServer server = cmd->server;
+ SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
+ SilcClientEntry remote_client;
+ SilcClientID *client_id;
+ unsigned char *tmp, *comment;
+ unsigned int tmp_len;
+ SilcBuffer idp;
+
+ SILC_SERVER_COMMAND_CHECK_ARGC(SILC_COMMAND_KILL, cmd, 1, 2);
+
+ if (!client || cmd->sock->type != SILC_SOCKET_TYPE_CLIENT)
+ goto out;
+
+ if (server->server_type != SILC_ROUTER)
+ goto out;
+
+ /* Check whether client has the permissions. */
+ if (!(client->mode & SILC_UMODE_ROUTER_OPERATOR)) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_KILL,
+ SILC_STATUS_ERR_NO_ROUTER_PRIV);
+ goto out;
+ }
+
+ /* Get the client ID */
+ tmp = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
+ if (!tmp) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_KILL,
+ SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
+ goto out;
+ }
+ client_id = silc_id_payload_parse_id(tmp, tmp_len);
+ if (!client_id) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_KILL,
+ SILC_STATUS_ERR_NO_SUCH_CLIENT_ID);
+ goto out;
+ }
+
+ /* Get the client entry */
+ remote_client = silc_idlist_find_client_by_id(server->local_list,
+ client_id, NULL);
+ if (!remote_client) {
+ remote_client = silc_idlist_find_client_by_id(server->global_list,
+ client_id, NULL);
+ if (!remote_client) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_KILL,
+ SILC_STATUS_ERR_NO_SUCH_CLIENT_ID);
+ goto out;
+ }
+ }
+
+ /* Get comment */
+ comment = silc_argument_get_arg_type(cmd->args, 2, &tmp_len);
+
+ /* Send reply to the sender */
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_KILL,
+ SILC_STATUS_OK);
+
+ /* Send KILLED notify to the channels. It is not sent to the client
+ as it will be sent differently destined directly to the client and not
+ to the channel. */
+ idp = silc_id_payload_encode(remote_client->id, SILC_ID_CLIENT);
+ silc_server_send_notify_on_channels(server, remote_client->connection,
+ remote_client, SILC_NOTIFY_TYPE_KILLED,
+ comment ? 2 : 1,
+ idp->data, idp->len,
+ comment, comment ? strlen(comment) : 0);
+ silc_buffer_free(idp);
+
+ /* Remove the client from all channels. This generates new keys to the
+ channels as well. */
+ silc_server_remove_from_channels(server, NULL, remote_client, FALSE,
+ NULL, TRUE);
+
+ /* Send KILLED notify to the client directly */
+ silc_server_send_notify_killed(server, remote_client->connection ?
+ remote_client->connection :
+ remote_client->router->connection, FALSE,
+ remote_client->id, SILC_ID_CLIENT_LEN,
+ comment);
+
+ /* Send KILLED notify to primary route */
+ if (!server->standalone)
+ silc_server_send_notify_killed(server, server->router->connection,
+ server->server_type == SILC_ROUTER ?
+ TRUE : FALSE,
+ remote_client->id, SILC_ID_CLIENT_LEN,
+ comment);
+
+ out:
+ silc_server_command_free(cmd);
}
/* Server side of command INFO. This sends information about us to
silc_server_command_free(cmd);
}
-SILC_SERVER_CMD_FUNC(connect)
-{
-}
-
/* Server side of command PING. This just replies to the ping. */
SILC_SERVER_CMD_FUNC(ping)
silc_server_command_free(cmd);
}
-SILC_SERVER_CMD_FUNC(oper)
-{
-}
-
-/* Assembles USERS command and executes it. This is called when client
- joins to a channel and we wan't to send USERS command reply to the
- client. */
-
-void silc_server_command_send_users(SilcServer server,
- SilcSocketConnection sock,
- SilcChannelEntry channel,
- int pending)
-{
- SilcServerCommandContext cmd;
- SilcBuffer buffer, idp;
- SilcPacketContext *packet = silc_packet_context_alloc();
-
- SILC_LOG_DEBUG(("Start"));
-
- /* Create USERS command packet and process it. */
- idp = silc_id_payload_encode(channel->id, SILC_ID_CHANNEL);
- buffer = silc_command_payload_encode_va(SILC_COMMAND_USERS, 0, 1,
- 1, idp->data, idp->len);
-
- packet->buffer = silc_buffer_copy(buffer);
- packet->sock = sock;
- packet->type = SILC_PACKET_COMMAND;
-
- cmd = silc_server_command_alloc();
- cmd->payload = silc_command_payload_parse(buffer);
- if (!cmd->payload) {
- silc_free(cmd);
- silc_buffer_free(buffer);
- silc_buffer_free(idp);
- silc_packet_context_free(packet);
- return;
- }
- cmd->args = silc_command_get_args(cmd->payload);
- cmd->server = server;
- cmd->sock = silc_socket_dup(sock);
- cmd->packet = silc_packet_context_dup(packet);
- cmd->pending = FALSE;
-
- if (pending) {
- /* If this function was called from pending command then instead of
- processing the command now, register a pending command callback which
- will process it after we've received the automatic USERS command
- reply which server will send in JOIN. */
- silc_server_command_pending(server, SILC_COMMAND_USERS, 0, NULL,
- silc_server_command_users, cmd);
- cmd->pending = TRUE;
- silc_buffer_free(buffer);
- silc_buffer_free(idp);
- return;
- }
-
- /* Process USERS command. */
- silc_server_command_users((void *)cmd);
-
- silc_buffer_free(buffer);
- silc_buffer_free(idp);
- silc_packet_context_free(packet);
-}
-
/* Internal routine to join channel. The channel sent to this function
has been either created or resolved from ID lists. This joins the sent
client to the channel. */
{
SilcSocketConnection sock = cmd->sock;
unsigned char *tmp;
- unsigned int tmp_len;
- unsigned char *passphrase = NULL, mode[4], tmp2[4];
+ unsigned int tmp_len, user_count;
+ unsigned char *passphrase = NULL, mode[4], tmp2[4], tmp3[4];
SilcClientEntry client;
SilcChannelClientEntry chl;
- SilcBuffer reply, chidp, clidp, keyp;
+ SilcBuffer reply, chidp, clidp, keyp, user_list, mode_list;
unsigned short ident = silc_command_get_ident(cmd->payload);
SILC_LOG_DEBUG(("Start"));
}
/* Generate new channel key as protocol dictates */
- if (!created || !channel->channel_key)
+ if ((!created && silc_list_count(channel->user_list) > 0) ||
+ !channel->channel_key)
silc_server_create_channel_key(server, channel, 0);
/* Send the channel key. This is broadcasted to the channel but is not
sent to the client who is joining to the channel. */
silc_server_send_channel_key(server, NULL, channel,
server->server_type == SILC_ROUTER ?
- FALSE : server->standalone);
+ FALSE : !server->standalone);
/* Join the client to the channel by adding it to channel's user list.
Add also the channel to client entry's channels list for fast cross-
silc_list_add(channel->user_list, chl);
silc_list_add(client->channels, chl);
+ /* Get users on the channel */
+ silc_server_get_users_on_channel(server, channel, &user_list, &mode_list,
+ &user_count);
+
/* Encode Client ID Payload of the original client who wants to join */
clidp = silc_id_payload_encode(client->id, SILC_ID_CLIENT);
chidp = silc_id_payload_encode(channel->id, SILC_ID_CHANNEL);
SILC_PUT32_MSB(channel->mode, mode);
SILC_PUT32_MSB(created, tmp2);
+ SILC_PUT32_MSB(user_count, tmp3);
tmp = silc_id_id2str(channel->id, SILC_ID_CHANNEL);
keyp = silc_channel_key_payload_encode(SILC_ID_CHANNEL_LEN, tmp,
- SILC_ID_CHANNEL_LEN,
+ strlen(channel->channel_key->
+ cipher->name),
channel->channel_key->cipher->name,
channel->key_len / 8, channel->key);
silc_free(tmp);
if (!channel->topic) {
reply =
silc_command_reply_payload_encode_va(SILC_COMMAND_JOIN,
- SILC_STATUS_OK, ident, 5,
+ SILC_STATUS_OK, ident, 9,
2, channel->channel_name,
strlen(channel->channel_name),
3, chidp->data, chidp->len,
- 4, mode, 4,
- 5, tmp2, 4,
- 6, keyp->data, keyp->len);
+ 4, clidp->data, clidp->len,
+ 5, mode, 4,
+ 6, tmp2, 4,
+ 7, keyp->data, keyp->len,
+ 12, tmp3, 4,
+ 13, user_list->data, user_list->len,
+ 14, mode_list->data,
+ mode_list->len);
} else {
reply =
silc_command_reply_payload_encode_va(SILC_COMMAND_JOIN,
- SILC_STATUS_OK, ident, 6,
+ SILC_STATUS_OK, ident, 10,
2, channel->channel_name,
strlen(channel->channel_name),
3, chidp->data, chidp->len,
- 4, mode, 4,
- 5, tmp2, 4,
- 6, keyp->data, keyp->len,
- 8, channel->topic,
- strlen(channel->topic));
+ 4, clidp->data, clidp->len,
+ 5, mode, 4,
+ 6, tmp2, 4,
+ 7, keyp->data, keyp->len,
+ 10, channel->topic,
+ strlen(channel->topic),
+ 12, tmp3, 4,
+ 13, user_list->data, user_list->len,
+ 14, mode_list->data,
+ mode_list->len);
}
/* Send command reply */
SILC_ID_CLIENT_LEN);
}
- /* Send USERS command reply to the joined channel so the user sees who
- is currently on the channel. */
- silc_server_command_send_users(server, sock, channel, cmd->pending);
-
silc_buffer_free(reply);
silc_buffer_free(clidp);
silc_buffer_free(chidp);
silc_buffer_free(keyp);
+ silc_buffer_free(user_list);
+ silc_buffer_free(mode_list);
out:
if (passphrase)
SilcServerCommandContext cmd = (SilcServerCommandContext)context;
SilcServer server = cmd->server;
int tmp_len;
- char *tmp, *channel_name = NULL, *cipher = NULL;
+ char *tmp, *channel_name = NULL, *cipher, *hmac;
SilcChannelEntry channel;
unsigned int umode = 0;
int created = FALSE;
}
channel_name = tmp;
+ if (strlen(channel_name) > 256)
+ channel_name[255] = '\0';
+
if (silc_server_command_bad_chars(channel_name) == TRUE) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
SILC_STATUS_ERR_BAD_CHANNEL);
goto out;
}
- /* Get cipher name */
+ /* Get cipher and hmac name */
cipher = silc_argument_get_arg_type(cmd->args, 4, NULL);
+ hmac = silc_argument_get_arg_type(cmd->args, 5, NULL);
/* See if the channel exists */
channel = silc_idlist_find_channel_by_name(server->local_list,
the channel by ourselves. */
if (server->standalone) {
channel = silc_server_create_new_channel(server, server->id, cipher,
- channel_name, TRUE);
+ hmac, channel_name, TRUE);
umode = (SILC_CHANNEL_UMODE_CHANOP | SILC_CHANNEL_UMODE_CHANFO);
created = TRUE;
if (!channel) {
/* Channel really does not exist, create it */
channel = silc_server_create_new_channel(server, server->id, cipher,
- channel_name, TRUE);
+ hmac, channel_name, TRUE);
umode = (SILC_CHANNEL_UMODE_CHANOP | SILC_CHANNEL_UMODE_CHANFO);
created = TRUE;
}
if (!channel) {
/* Channel really does not exist, create it */
channel = silc_server_create_new_channel(server, server->id, cipher,
- channel_name, TRUE);
+ hmac, channel_name, TRUE);
umode = (SILC_CHANNEL_UMODE_CHANOP | SILC_CHANNEL_UMODE_CHANFO);
created = TRUE;
}
channel = silc_idlist_find_channel_by_id(server->local_list,
channel_id, NULL);
if (!channel) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
- SILC_STATUS_ERR_NO_SUCH_CHANNEL);
- goto out;
+ channel = silc_idlist_find_channel_by_id(server->global_list,
+ channel_id, NULL);
+ if (!channel) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
+ SILC_STATUS_ERR_NO_SUCH_CHANNEL);
+ goto out;
+ }
}
/* Check whether this client is on the channel */
if (!tmp) {
if (!(channel->mode & SILC_CHANNEL_MODE_ULIMIT)) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
- SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
+ SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
goto out;
}
} else {
tmp = silc_argument_get_arg_type(cmd->args, 4, NULL);
if (!tmp) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
- SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
+ SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
goto out;
}
tmp = silc_argument_get_arg_type(cmd->args, 5, NULL);
if (!tmp) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
- SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
+ SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
goto out;
}
tmp = silc_argument_get_arg_type(cmd->args, 6, NULL);
if (!tmp) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
- SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
+ SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
goto out;
}
if (mode_mask & SILC_CHANNEL_MODE_CIPHER) {
if (!(channel->mode & SILC_CHANNEL_MODE_CIPHER)) {
/* Cipher to use protect the traffic */
- unsigned int key_len = 128;
- char *cp;
+ unsigned int key_len;
/* Get cipher */
tmp = silc_argument_get_arg_type(cmd->args, 8, NULL);
if (!tmp) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
- SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
+ SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
goto out;
}
- cp = strchr(tmp, ':');
- if (cp) {
- key_len = atoi(cp);
- *cp = '\0';
- }
-
/* XXX Duplicated code, make own function for this!! */
/* Delete old cipher and allocate the new one */
silc_cipher_free(channel->channel_key);
- silc_cipher_alloc(tmp, &channel->channel_key);
-
- key_len /= 8;
- if (key_len > 32)
- key_len = 32;
+ if (!silc_cipher_alloc(tmp, &channel->channel_key)) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
+ SILC_STATUS_ERR_UNKNOWN_ALGORITHM);
+ goto out;
+ }
+ key_len = silc_cipher_get_key_len(channel->channel_key) / 8;
/* Re-generate channel key */
silc_server_create_channel_key(server, channel, key_len);
/* Delete old cipher and allocate default one */
silc_cipher_free(channel->channel_key);
if (!channel->cipher)
- silc_cipher_alloc("twofish", &channel->channel_key);
- else
- silc_cipher_alloc(channel->cipher, &channel->channel_key);
+ silc_cipher_alloc("aes-256-cbc", &channel->channel_key);
+ else {
+ if (!silc_cipher_alloc(channel->cipher, &channel->channel_key)) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
+ SILC_STATUS_ERR_UNKNOWN_ALGORITHM);
+ goto out;
+ }
+ }
/* Re-generate channel key */
silc_server_create_channel_key(server, channel, 0);
silc_server_command_free(cmd);
}
-/* Server side of CUMODE command. Changes client's mode on a channel. */
+/* Server side of CUMODE command. Changes client's mode on a channel. */
+
+SILC_SERVER_CMD_FUNC(cumode)
+{
+ SilcServerCommandContext cmd = (SilcServerCommandContext)context;
+ SilcServer server = cmd->server;
+ SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
+ SilcChannelID *channel_id;
+ SilcClientID *client_id;
+ SilcChannelEntry channel;
+ SilcClientEntry target_client;
+ SilcChannelClientEntry chl;
+ SilcBuffer packet, idp;
+ unsigned char *tmp_id, *tmp_ch_id, *tmp_mask;
+ unsigned int target_mask, sender_mask, tmp_len, tmp_ch_len;
+ int notify = FALSE;
+
+ SILC_SERVER_COMMAND_CHECK_ARGC(SILC_COMMAND_CUMODE, cmd, 3, 3);
+
+ /* Get Channel ID */
+ tmp_ch_id = silc_argument_get_arg_type(cmd->args, 1, &tmp_ch_len);
+ if (!tmp_ch_id) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
+ SILC_STATUS_ERR_NO_CHANNEL_ID);
+ goto out;
+ }
+ channel_id = silc_id_payload_parse_id(tmp_ch_id, tmp_ch_len);
+ if (!channel_id) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
+ SILC_STATUS_ERR_NO_CHANNEL_ID);
+ goto out;
+ }
+
+ /* Get channel entry */
+ channel = silc_idlist_find_channel_by_id(server->local_list,
+ channel_id, NULL);
+ if (!channel) {
+ channel = silc_idlist_find_channel_by_id(server->global_list,
+ channel_id, NULL);
+ if (!channel) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
+ SILC_STATUS_ERR_NO_SUCH_CHANNEL);
+ goto out;
+ }
+ }
+
+ /* Check whether sender is on the channel */
+ if (!silc_server_client_on_channel(client, channel)) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
+ SILC_STATUS_ERR_NOT_ON_CHANNEL);
+ goto out;
+ }
+
+ /* Check that client has rights to change other's rights */
+ silc_list_start(channel->user_list);
+ while ((chl = silc_list_get(channel->user_list)) != SILC_LIST_END) {
+ if (chl->client == client) {
+ if (!(chl->mode & SILC_CHANNEL_UMODE_CHANFO) &&
+ !(chl->mode & SILC_CHANNEL_UMODE_CHANOP)) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
+ SILC_STATUS_ERR_NO_CHANNEL_PRIV);
+ goto out;
+ }
+
+ sender_mask = chl->mode;
+ break;
+ }
+ }
+
+ /* Get the target client's channel mode mask */
+ tmp_mask = silc_argument_get_arg_type(cmd->args, 2, NULL);
+ if (!tmp_mask) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
+ SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
+ goto out;
+ }
+ SILC_GET32_MSB(target_mask, tmp_mask);
+
+ /* Get target Client ID */
+ tmp_id = silc_argument_get_arg_type(cmd->args, 3, &tmp_len);
+ if (!tmp_id) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
+ SILC_STATUS_ERR_NO_CLIENT_ID);
+ goto out;
+ }
+ client_id = silc_id_payload_parse_id(tmp_id, tmp_len);
+ if (!client_id) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
+ SILC_STATUS_ERR_NO_CLIENT_ID);
+ goto out;
+ }
+
+ /* Get target client's entry */
+ target_client = silc_idlist_find_client_by_id(server->local_list,
+ client_id, NULL);
+ if (!target_client) {
+ target_client = silc_idlist_find_client_by_id(server->global_list,
+ client_id, NULL);
+ }
+
+ /* Check whether target client is on the channel */
+ if (!silc_server_client_on_channel(target_client, channel)) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
+ SILC_STATUS_ERR_USER_NOT_ON_CHANNEL);
+ goto out;
+ }
+
+ /* Get entry to the channel user list */
+ silc_list_start(channel->user_list);
+ while ((chl = silc_list_get(channel->user_list)) != SILC_LIST_END)
+ if (chl->client == target_client)
+ break;
+
+ /*
+ * Change the mode
+ */
+
+ /* If the target client is founder, no one else can change their mode
+ but themselves. */
+ if (chl->mode & SILC_CHANNEL_UMODE_CHANFO && chl->client != target_client) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
+ SILC_STATUS_ERR_NOT_YOU);
+ goto out;
+ }
+
+ if (target_mask & SILC_CHANNEL_UMODE_CHANFO) {
+ /* Cannot promote anyone to channel founder */
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
+ SILC_STATUS_ERR_NOT_YOU);
+ goto out;
+ } else {
+ if (chl->mode & SILC_CHANNEL_UMODE_CHANFO) {
+ if (target_client == client) {
+ /* Remove channel founder rights from itself */
+ chl->mode &= ~SILC_CHANNEL_UMODE_CHANFO;
+ notify = TRUE;
+ } else {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
+ SILC_STATUS_ERR_NOT_YOU);
+ goto out;
+ }
+ }
+ }
+
+ if (target_mask & SILC_CHANNEL_UMODE_CHANOP) {
+ /* Promote to operator */
+ if (!(chl->mode & SILC_CHANNEL_UMODE_CHANOP)) {
+ chl->mode |= SILC_CHANNEL_UMODE_CHANOP;
+ notify = TRUE;
+ }
+ } else {
+ if (chl->mode & SILC_CHANNEL_UMODE_CHANOP) {
+ /* Demote to normal user */
+ chl->mode &= ~SILC_CHANNEL_UMODE_CHANOP;
+ notify = TRUE;
+ }
+ }
+
+ idp = silc_id_payload_encode(client->id, SILC_ID_CLIENT);
+
+ /* Send notify to channel, notify only if mode was actually changed. */
+ if (notify) {
+ silc_server_send_notify_to_channel(server, NULL, channel, FALSE,
+ SILC_NOTIFY_TYPE_CUMODE_CHANGE, 3,
+ idp->data, idp->len,
+ tmp_mask, 4,
+ tmp_id, tmp_len);
+
+ /* Set CUMODE notify type to network */
+ if (!server->standalone)
+ silc_server_send_notify_cumode(server, server->router->connection,
+ server->server_type == SILC_ROUTER ?
+ TRUE : FALSE, channel,
+ target_mask, client->id,
+ SILC_ID_CLIENT_LEN,
+ target_client->id,
+ SILC_ID_CLIENT_LEN);
+ }
+
+ /* Send command reply to sender */
+ packet = silc_command_reply_payload_encode_va(SILC_COMMAND_CUMODE,
+ SILC_STATUS_OK, 0, 2,
+ 2, tmp_mask, 4,
+ 3, tmp_id, tmp_len);
+ silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0,
+ packet->data, packet->len, FALSE);
+
+ silc_buffer_free(packet);
+ silc_free(channel_id);
+ silc_free(client_id);
+ silc_buffer_free(idp);
+
+ out:
+ silc_server_command_free(cmd);
+}
+
+/* Server side of KICK command. Kicks client out of channel. */
+
+SILC_SERVER_CMD_FUNC(kick)
+{
+ SilcServerCommandContext cmd = (SilcServerCommandContext)context;
+ SilcServer server = cmd->server;
+ SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
+ SilcClientEntry target_client;
+ SilcChannelID *channel_id;
+ SilcClientID *client_id;
+ SilcChannelEntry channel;
+ SilcChannelClientEntry chl;
+ SilcBuffer idp;
+ unsigned int tmp_len;
+ unsigned char *tmp, *comment;
+
+ SILC_SERVER_COMMAND_CHECK_ARGC(SILC_COMMAND_LEAVE, cmd, 1, 3);
+
+ /* Get Channel ID */
+ tmp = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
+ if (!tmp) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
+ SILC_STATUS_ERR_NO_CHANNEL_ID);
+ goto out;
+ }
+ channel_id = silc_id_payload_parse_id(tmp, tmp_len);
+ if (!channel_id) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
+ SILC_STATUS_ERR_NO_CHANNEL_ID);
+ goto out;
+ }
+
+ /* Get channel entry */
+ channel = silc_idlist_find_channel_by_id(server->local_list,
+ channel_id, NULL);
+ if (!channel) {
+ channel = silc_idlist_find_channel_by_id(server->local_list,
+ channel_id, NULL);
+ if (!channel) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
+ SILC_STATUS_ERR_NO_SUCH_CHANNEL);
+ goto out;
+ }
+ }
+
+ /* Check whether sender is on the channel */
+ if (!silc_server_client_on_channel(client, channel)) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
+ SILC_STATUS_ERR_NOT_ON_CHANNEL);
+ goto out;
+ }
+
+ /* Check that the kicker is channel operator or channel founder */
+ silc_list_start(channel->user_list);
+ while ((chl = silc_list_get(channel->user_list)) != SILC_LIST_END) {
+ if (chl->client == client) {
+ if (chl->mode == SILC_CHANNEL_UMODE_NONE) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
+ SILC_STATUS_ERR_NO_CHANNEL_PRIV);
+ goto out;
+ }
+ break;
+ }
+ }
+
+ /* Get target Client ID */
+ tmp = silc_argument_get_arg_type(cmd->args, 2, &tmp_len);
+ if (!tmp) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
+ SILC_STATUS_ERR_NO_CLIENT_ID);
+ goto out;
+ }
+ client_id = silc_id_payload_parse_id(tmp, tmp_len);
+ if (!client_id) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
+ SILC_STATUS_ERR_NO_CLIENT_ID);
+ goto out;
+ }
+
+ /* Get target client's entry */
+ target_client = silc_idlist_find_client_by_id(server->local_list,
+ client_id, NULL);
+ if (!target_client) {
+ target_client = silc_idlist_find_client_by_id(server->global_list,
+ client_id, NULL);
+ }
+
+ /* Check that the target client is not channel founder. Channel founder
+ cannot be kicked from the channel. */
+ silc_list_start(channel->user_list);
+ while ((chl = silc_list_get(channel->user_list)) != SILC_LIST_END) {
+ if (chl->client == target_client) {
+ if (chl->mode & SILC_CHANNEL_UMODE_CHANFO) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
+ SILC_STATUS_ERR_NO_CHANNEL_FOPRIV);
+ goto out;
+ }
+ break;
+ }
+ }
+
+ /* Check whether target client is on the channel */
+ if (!silc_server_client_on_channel(target_client, channel)) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
+ SILC_STATUS_ERR_USER_NOT_ON_CHANNEL);
+ goto out;
+ }
+
+ /* Get comment */
+ tmp_len = 0;
+ comment = silc_argument_get_arg_type(cmd->args, 3, &tmp_len);
+ if (tmp_len > 128)
+ comment = NULL;
+
+ /* Send command reply to sender */
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
+ SILC_STATUS_OK);
+
+ /* Send KICKED notify to local clients on the channel */
+ idp = silc_id_payload_encode(target_client->id, SILC_ID_CLIENT);
+ silc_server_send_notify_to_channel(server, NULL, channel, FALSE,
+ SILC_NOTIFY_TYPE_KICKED,
+ comment ? 2 : 1,
+ idp->data, idp->len,
+ comment, comment ? strlen(comment) : 0);
+ silc_buffer_free(idp);
+
+ /* Remove the client from the channel. If the channel does not exist
+ after removing the client then the client kicked itself off the channel
+ and we don't have to send anything after that. */
+ if (!silc_server_remove_from_one_channel(server, NULL, channel,
+ target_client, FALSE))
+ goto out;
+
+ /* Send KICKED notify to primary route */
+ if (!server->standalone)
+ silc_server_send_notify_kicked(server, server->router->connection,
+ server->server_type == SILC_ROUTER ?
+ TRUE : FALSE, channel,
+ target_client->id, SILC_ID_CLIENT_LEN,
+ comment);
+
+ /* Re-generate channel key */
+ silc_server_create_channel_key(server, channel, 0);
+
+ /* Send the channel key to the channel. The key of course is not sent
+ to the client who was kicked off the channel. */
+ silc_server_send_channel_key(server, target_client->connection, channel,
+ server->server_type == SILC_ROUTER ?
+ FALSE : !server->standalone);
+
+ out:
+ silc_server_command_free(cmd);
+}
+
+/* Server side of OPER command. Client uses this comand to obtain server
+ operator privileges to this server/router. */
+
+SILC_SERVER_CMD_FUNC(oper)
+{
+ SilcServerCommandContext cmd = (SilcServerCommandContext)context;
+ SilcServer server = cmd->server;
+ SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
+ unsigned char *username, *auth;
+ unsigned int tmp_len;
+ SilcServerConfigSectionAdminConnection *admin;
+ SilcIDListData idata = (SilcIDListData)client;
+
+ SILC_SERVER_COMMAND_CHECK_ARGC(SILC_COMMAND_OPER, cmd, 1, 2);
+
+ if (!client || cmd->sock->type != SILC_SOCKET_TYPE_CLIENT)
+ goto out;
+
+ /* Get the username */
+ username = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
+ if (!username) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_OPER,
+ SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
+ goto out;
+ }
+
+ /* Get the admin configuration */
+ admin = silc_server_config_find_admin(server->config, cmd->sock->ip,
+ username, client->nickname);
+ if (!admin) {
+ admin = silc_server_config_find_admin(server->config, cmd->sock->hostname,
+ username, client->nickname);
+ if (!admin) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_OPER,
+ SILC_STATUS_ERR_AUTH_FAILED);
+ goto out;
+ }
+ }
+
+ /* Get the authentication payload */
+ auth = silc_argument_get_arg_type(cmd->args, 2, &tmp_len);
+ if (!auth) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_OPER,
+ SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
+ goto out;
+ }
+
+ /* Verify the authentication data */
+ if (!silc_auth_verify_data(auth, tmp_len, admin->auth_meth,
+ admin->auth_data, admin->auth_data_len,
+ idata->hash, client->id, SILC_ID_CLIENT)) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_OPER,
+ SILC_STATUS_ERR_AUTH_FAILED);
+ goto out;
+ }
+
+ /* Client is now server operator */
+ client->mode |= SILC_UMODE_SERVER_OPERATOR;
+
+ /* Send reply to the sender */
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_OPER,
+ SILC_STATUS_OK);
+
+ out:
+ silc_server_command_free(cmd);
+}
+
+/* Server side of SILCOPER command. Client uses this comand to obtain router
+ operator privileges to this router. */
-SILC_SERVER_CMD_FUNC(cumode)
+SILC_SERVER_CMD_FUNC(silcoper)
{
SilcServerCommandContext cmd = (SilcServerCommandContext)context;
SilcServer server = cmd->server;
SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
- SilcChannelID *channel_id;
- SilcClientID *client_id;
- SilcChannelEntry channel;
- SilcClientEntry target_client;
- SilcChannelClientEntry chl;
- SilcBuffer packet, idp;
- unsigned char *tmp_id, *tmp_ch_id, *tmp_mask;
- unsigned int target_mask, sender_mask, tmp_len, tmp_ch_len;
- int notify = FALSE;
-
- SILC_SERVER_COMMAND_CHECK_ARGC(SILC_COMMAND_CUMODE, cmd, 3, 3);
+ unsigned char *username, *auth;
+ unsigned int tmp_len;
+ SilcServerConfigSectionAdminConnection *admin;
+ SilcIDListData idata = (SilcIDListData)client;
- /* Get Channel ID */
- tmp_ch_id = silc_argument_get_arg_type(cmd->args, 1, &tmp_ch_len);
- if (!tmp_ch_id) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
- SILC_STATUS_ERR_NO_CHANNEL_ID);
- goto out;
- }
- channel_id = silc_id_payload_parse_id(tmp_ch_id, tmp_ch_len);
- if (!channel_id) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
- SILC_STATUS_ERR_NO_CHANNEL_ID);
- goto out;
- }
+ SILC_SERVER_COMMAND_CHECK_ARGC(SILC_COMMAND_SILCOPER, cmd, 1, 2);
- /* Get channel entry */
- channel = silc_idlist_find_channel_by_id(server->local_list,
- channel_id, NULL);
- if (!channel) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
- SILC_STATUS_ERR_NO_SUCH_CHANNEL);
+ if (!client || cmd->sock->type != SILC_SOCKET_TYPE_CLIENT)
goto out;
- }
- /* Check whether sender is on the channel */
- if (!silc_server_client_on_channel(client, channel)) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
- SILC_STATUS_ERR_NOT_ON_CHANNEL);
+ /* Get the username */
+ username = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
+ if (!username) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_SILCOPER,
+ SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
goto out;
}
- /* Check that client has rights to change other's rights */
- silc_list_start(channel->user_list);
- while ((chl = silc_list_get(channel->user_list)) != SILC_LIST_END) {
- if (chl->client == client) {
- if (!(chl->mode & SILC_CHANNEL_UMODE_CHANFO) &&
- !(chl->mode & SILC_CHANNEL_UMODE_CHANOP)) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
- SILC_STATUS_ERR_NO_CHANNEL_PRIV);
- goto out;
- }
-
- sender_mask = chl->mode;
- break;
+ /* Get the admin configuration */
+ admin = silc_server_config_find_admin(server->config, cmd->sock->ip,
+ username, client->nickname);
+ if (!admin) {
+ admin = silc_server_config_find_admin(server->config, cmd->sock->hostname,
+ username, client->nickname);
+ if (!admin) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_SILCOPER,
+ SILC_STATUS_ERR_AUTH_FAILED);
+ goto out;
}
}
-
- /* Get the target client's channel mode mask */
- tmp_mask = silc_argument_get_arg_type(cmd->args, 2, NULL);
- if (!tmp_mask) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
+
+ /* Get the authentication payload */
+ auth = silc_argument_get_arg_type(cmd->args, 2, &tmp_len);
+ if (!auth) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_SILCOPER,
SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
goto out;
}
- SILC_GET32_MSB(target_mask, tmp_mask);
- /* Get target Client ID */
- tmp_id = silc_argument_get_arg_type(cmd->args, 3, &tmp_len);
- if (!tmp_id) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
- SILC_STATUS_ERR_NO_CHANNEL_ID);
- goto out;
- }
- client_id = silc_id_payload_parse_id(tmp_id, tmp_len);
- if (!client_id) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
- SILC_STATUS_ERR_NO_CHANNEL_ID);
+ /* Verify the authentication data */
+ if (!silc_auth_verify_data(auth, tmp_len, admin->auth_meth,
+ admin->auth_data, admin->auth_data_len,
+ idata->hash, client->id, SILC_ID_CLIENT)) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_SILCOPER,
+ SILC_STATUS_ERR_AUTH_FAILED);
goto out;
}
- /* Get target client's entry */
- target_client = silc_idlist_find_client_by_id(server->local_list,
- client_id, NULL);
- if (!target_client) {
- target_client = silc_idlist_find_client_by_id(server->global_list,
- client_id, NULL);
- }
+ /* Client is now router operator */
+ client->mode |= SILC_UMODE_ROUTER_OPERATOR;
- /* Check whether target client is on the channel */
- if (!silc_server_client_on_channel(target_client, channel)) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
- SILC_STATUS_ERR_USER_NOT_ON_CHANNEL);
- goto out;
- }
+ /* Send reply to the sender */
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_SILCOPER,
+ SILC_STATUS_OK);
- /* Get entry to the channel user list */
- silc_list_start(channel->user_list);
- while ((chl = silc_list_get(channel->user_list)) != SILC_LIST_END)
- if (chl->client == target_client)
- break;
+ out:
+ silc_server_command_free(cmd);
+}
- /*
- * Change the mode
- */
+/* Server side command of CONNECT. Connects us to the specified remote
+ server or router. */
- /* If the target client is founder, no one else can change their mode
- but themselves. */
- if (chl->mode & SILC_CHANNEL_UMODE_CHANFO && chl->client != target_client) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
- SILC_STATUS_ERR_NOT_YOU);
+SILC_SERVER_CMD_FUNC(connect)
+{
+ SilcServerCommandContext cmd = (SilcServerCommandContext)context;
+ SilcServer server = cmd->server;
+ SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
+ unsigned char *tmp, *host;
+ unsigned int tmp_len;
+ unsigned int port = SILC_PORT;
+
+ SILC_SERVER_COMMAND_CHECK_ARGC(SILC_COMMAND_CONNECT, cmd, 1, 2);
+
+ if (!client || cmd->sock->type != SILC_SOCKET_TYPE_CLIENT)
goto out;
- }
- if (target_mask & SILC_CHANNEL_UMODE_CHANFO) {
- /* Cannot promote anyone to channel founder */
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
- SILC_STATUS_ERR_NOT_YOU);
+ /* Check whether client has the permissions. */
+ if (client->mode == SILC_UMODE_NONE) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CONNECT,
+ SILC_STATUS_ERR_NO_SERVER_PRIV);
goto out;
- } else {
- if (chl->mode & SILC_CHANNEL_UMODE_CHANFO) {
- if (target_client == client) {
- /* Remove channel founder rights from itself */
- chl->mode &= ~SILC_CHANNEL_UMODE_CHANFO;
- notify = TRUE;
- } else {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
- SILC_STATUS_ERR_NOT_YOU);
- goto out;
- }
- }
}
- if (target_mask & SILC_CHANNEL_UMODE_CHANOP) {
- /* Promote to operator */
- if (!(chl->mode & SILC_CHANNEL_UMODE_CHANOP)) {
- chl->mode |= SILC_CHANNEL_UMODE_CHANOP;
- notify = TRUE;
- }
- } else {
- if (chl->mode & SILC_CHANNEL_UMODE_CHANOP) {
- /* Demote to normal user */
- chl->mode &= ~SILC_CHANNEL_UMODE_CHANOP;
- notify = TRUE;
- }
+ if (server->server_type == SILC_ROUTER &&
+ client->mode & SILC_UMODE_SERVER_OPERATOR) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CONNECT,
+ SILC_STATUS_ERR_NO_ROUTER_PRIV);
+ goto out;
}
- idp = silc_id_payload_encode(client->id, SILC_ID_CLIENT);
+ /* Get the remote server */
+ host = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
+ if (!host) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CONNECT,
+ SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
+ goto out;
+ }
- /* Send notify to channel, notify only if mode was actually changed. */
- if (notify) {
- silc_server_send_notify_to_channel(server, NULL, channel, FALSE,
- SILC_NOTIFY_TYPE_CUMODE_CHANGE, 3,
- idp->data, idp->len,
- tmp_mask, 4,
- tmp_id, tmp_len);
+ /* Get port */
+ tmp = silc_argument_get_arg_type(cmd->args, 2, &tmp_len);
+ if (tmp)
+ SILC_GET32_MSB(port, tmp);
- /* Set CUMODE notify type to network */
- if (!server->standalone)
- silc_server_send_notify_cumode(server, server->router->connection,
- server->server_type == SILC_ROUTER ?
- TRUE : FALSE, channel,
- target_mask, client->id,
- SILC_ID_CLIENT_LEN,
- target_client->id,
- SILC_ID_CLIENT_LEN);
- }
+ /* Create the connection. It is done with timeout and is async. */
+ silc_server_create_connection(server, host, port);
- /* Send command reply to sender */
- packet = silc_command_reply_payload_encode_va(SILC_COMMAND_CUMODE,
- SILC_STATUS_OK, 0, 2,
- 2, tmp_mask, 4,
- 3, tmp_id, tmp_len);
- silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0,
- packet->data, packet->len, FALSE);
-
- silc_buffer_free(packet);
- silc_free(channel_id);
- silc_free(client_id);
- silc_buffer_free(idp);
+ /* Send reply to the sender */
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CONNECT,
+ SILC_STATUS_OK);
out:
silc_server_command_free(cmd);
}
-/* Server side of KICK command. Kicks client out of channel. */
-
-SILC_SERVER_CMD_FUNC(kick)
-{
-}
-
SILC_SERVER_CMD_FUNC(restart)
{
}
+
+/* Server side command of CLOSE. Closes connection to a specified server. */
SILC_SERVER_CMD_FUNC(close)
{
+ SilcServerCommandContext cmd = (SilcServerCommandContext)context;
+ SilcServer server = cmd->server;
+ SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
+ SilcServerEntry server_entry;
+ SilcSocketConnection sock;
+ unsigned char *tmp;
+ unsigned int tmp_len;
+ unsigned char *name;
+ unsigned int port = SILC_PORT;
+
+ SILC_SERVER_COMMAND_CHECK_ARGC(SILC_COMMAND_CLOSE, cmd, 1, 2);
+
+ if (!client || cmd->sock->type != SILC_SOCKET_TYPE_CLIENT)
+ goto out;
+
+ /* Check whether client has the permissions. */
+ if (client->mode == SILC_UMODE_NONE) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CLOSE,
+ SILC_STATUS_ERR_NO_SERVER_PRIV);
+ goto out;
+ }
+
+ /* Get the remote server */
+ name = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
+ if (!name) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CLOSE,
+ SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
+ goto out;
+ }
+
+ /* Get port */
+ tmp = silc_argument_get_arg_type(cmd->args, 2, &tmp_len);
+ if (tmp)
+ SILC_GET32_MSB(port, tmp);
+
+ server_entry = silc_idlist_find_server_by_conn(server->local_list,
+ name, port, NULL);
+ if (!server_entry) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CLOSE,
+ SILC_STATUS_ERR_NO_SERVER_ID);
+ goto out;
+ }
+
+ /* Send reply to the sender */
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CLOSE,
+ SILC_STATUS_OK);
+
+ /* Close the connection to the server */
+ sock = (SilcSocketConnection)server_entry->connection;
+ silc_server_free_sock_user_data(server, sock);
+ silc_server_close_connection(server, sock);
+
+ out:
+ silc_server_command_free(cmd);
}
+
+/* Server side command of SHUTDOWN. Shutdowns the server and closes all
+ active connections. */
-SILC_SERVER_CMD_FUNC(die)
+SILC_SERVER_CMD_FUNC(shutdown)
{
+ SilcServerCommandContext cmd = (SilcServerCommandContext)context;
+ SilcServer server = cmd->server;
+ SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
+
+ SILC_SERVER_COMMAND_CHECK_ARGC(SILC_COMMAND_SHUTDOWN, cmd, 0, 0);
+
+ if (!client || cmd->sock->type != SILC_SOCKET_TYPE_CLIENT)
+ goto out;
+
+ /* Check whether client has the permission. */
+ if (client->mode == SILC_UMODE_NONE) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_SHUTDOWN,
+ SILC_STATUS_ERR_NO_SERVER_PRIV);
+ goto out;
+ }
+
+ /* Send reply to the sender */
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_SHUTDOWN,
+ SILC_STATUS_OK);
+
+ /* Then, gracefully, or not, bring the server down. */
+ silc_server_stop(server);
+ exit(0);
+
+ out:
+ silc_server_command_free(cmd);
}
-SILC_SERVER_CMD_FUNC(silcoper)
-{
-}
-
/* Server side command of LEAVE. Removes client from a channel. */
SILC_SERVER_CMD_FUNC(leave)
/* Get channel entry */
channel = silc_idlist_find_channel_by_id(server->local_list, id, NULL);
if (!channel) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_LEAVE,
- SILC_STATUS_ERR_NO_SUCH_CHANNEL);
- goto out;
+ channel = silc_idlist_find_channel_by_id(server->global_list, id, NULL);
+ if (!channel) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_LEAVE,
+ SILC_STATUS_ERR_NO_SUCH_CHANNEL);
+ goto out;
+ }
}
/* Check whether this client is on the channel */
SilcServerCommandContext cmd = (SilcServerCommandContext)context;
SilcServer server = cmd->server;
SilcChannelEntry channel;
- SilcChannelClientEntry chl;
SilcChannelID *id;
SilcBuffer packet;
unsigned char *channel_id;
unsigned int channel_id_len;
SilcBuffer client_id_list;
SilcBuffer client_mode_list;
- SilcBuffer idp;
unsigned char lc[4];
unsigned int list_count = 0;
unsigned short ident = silc_command_get_ident(cmd->payload);
}
}
- /* Assemble the lists now */
-
- client_id_list = silc_buffer_alloc((SILC_ID_CLIENT_LEN + 4) *
- silc_list_count(channel->user_list));
- silc_buffer_pull_tail(client_id_list, SILC_BUFFER_END(client_id_list));
- client_mode_list =
- silc_buffer_alloc(4 * silc_list_count(channel->user_list));
- silc_buffer_pull_tail(client_mode_list, SILC_BUFFER_END(client_mode_list));
-
- silc_list_start(channel->user_list);
- while ((chl = silc_list_get(channel->user_list)) != SILC_LIST_END) {
- /* Client ID */
- idp = silc_id_payload_encode(chl->client->id, SILC_ID_CLIENT);
- silc_buffer_put(client_id_list, idp->data, idp->len);
- silc_buffer_pull(client_id_list, idp->len);
- silc_buffer_free(idp);
-
- /* Client's mode on channel */
- SILC_PUT32_MSB(chl->mode, client_mode_list->data);
- silc_buffer_pull(client_mode_list, 4);
-
- list_count++;
- }
- silc_buffer_push(client_id_list,
- client_id_list->data - client_id_list->head);
- silc_buffer_push(client_mode_list,
- client_mode_list->data - client_mode_list->head);
+ /* Get the users list */
+ silc_server_get_users_on_channel(server, channel, &client_id_list,
+ &client_mode_list, &list_count);
/* List count */
SILC_PUT32_MSB(list_count, lc);
projects / silc.git / blobdiff