Author: Pekka Riikonen <priikone@silcnet.org>
- Copyright (C) 2002 Pekka Riikonen
+ Copyright (C) 2002 - 2005, 2007 Pekka Riikonen
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
-
+
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
#include "server_internal.h"
typedef struct {
- void *id;
- SilcIdType id_type;
+ SilcPacketStream sock; /* Connection of this query */
+ unsigned char **arg; /* Query argument */
+ SilcUInt32 *arg_lens; /* Query argument lengths */
+ SilcUInt32 *arg_types; /* Query argument types */
+ SilcUInt32 argc; /* Number of query arguments */
+ SilcUInt32 timeout; /* Max timeout for query to complete */
+ SilcUInt16 ident; /* Query command identifier */
+} *SilcServerQueryList;
+
+/* Represents an SILC ID */
+typedef struct {
+ void *id; /* ID */
+ SilcIdType id_type; /* ID type */
+ SilcUInt16 ident; /* Command identifier */
} *SilcServerQueryID;
+/* Represents one error occurred during query */
typedef struct {
- SilcUInt32 index; /* Index to IDs */
- bool from_cmd; /* TRUE if `index' is from command args,
- otherwise from query->ids */
- SilcStatus error; /* The actual error */
+ void *id; /* ID */
+ SilcIdType id_type; /* ID type */
+ unsigned int index : 15; /* Index to IDs */
+ unsigned int type : 2; /* 0 = take from query->ids, 1 = take
+ from args, 2 = no args in error. */
+ unsigned int error : 7; /* The actual error (SilcStatus) */
} *SilcServerQueryError;
+/* Query session context */
typedef struct {
- SilcCommand querycmd; /* Query command */
- SilcServerCommandContext cmd; /* Command context for query */
-
- char *nickname; /* Queried nickname */
- char *nick_server; /* Queried nickname's server */
- char *server_name; /* Queried server name */
- char *channel_name; /* Queried channel name */
+ /* Queried data */
+ char nickname[128 + 1]; /* Queried nickname, normalized */
+ char nick_server[128 + 1]; /* Queried nickname's server */
+ char *server_name; /* Queried server name, normalized */
+ char *channel_name; /* Queried channel name, normalized */
SilcServerQueryID ids; /* Queried IDs */
SilcUInt32 ids_count; /* number of queried IDs */
SilcUInt32 reply_count; /* Requested reply count */
SilcDList attrs; /* Requested Attributes in WHOIS */
+ /* Query session data */
+ SilcPacketStream router; /* Router to send our query */
+ SilcServerCommandContext cmd; /* Command context for query */
+ SilcServerQueryList querylist; /* Temporary query list context */
+ SilcServerQueryID queries; /* Ongoing queries */
SilcServerQueryError errors; /* Query errors */
- SilcUInt32 errors_count; /* number of errors */
+ SilcUInt16 querylist_count; /* Number of query lists */
+ SilcUInt16 queries_count; /* Number of ongoing queries */
+ SilcUInt16 queries_left; /* Number of ongoing queries left */
+ SilcUInt16 errors_count; /* number of errors */
+ unsigned int querycmd : 7; /* Query command (SilcCommand) */
+ unsigned int resolved : 1; /* TRUE if normal server has resolved
+ information from router */
+ unsigned int dynamic_prim : 1; /* Dynamic connection attempt to primary */
+ unsigned int dynamic_retry : 1; /* Primary returned error, send to
+ nick@serv server. */
+ unsigned int parsed : 1; /* Set when query is parsed */
} *SilcServerQuery;
+
void silc_server_query_free(SilcServerQuery query);
-bool silc_server_query_check_error(SilcServer server,
- SilcServerQuery query,
- SilcServerCommandReplyContext cmdr);
void silc_server_query_send_error(SilcServer server,
SilcServerQuery query,
SilcStatus error, ...);
void silc_server_query_add_error(SilcServer server,
SilcServerQuery query,
- bool from_cmd,
+ SilcUInt32 type,
SilcUInt32 index,
SilcStatus error);
+void silc_server_query_add_error_id(SilcServer server,
+ SilcServerQuery query,
+ SilcStatus error,
+ void *id, SilcIdType id_type);
void silc_server_query_send_router(SilcServer server, SilcServerQuery query);
void silc_server_query_send_router_reply(void *context, void *reply);
-void silc_server_query_parse(SilcServer server, SilcServerQuery query);
-void silc_server_query_process(SilcServer server, SilcServerQuery query);
-
+SilcBool silc_server_query_parse(SilcServer server, SilcServerQuery query,
+ SilcBool parse_only);
+void silc_server_query_process(SilcServer server, SilcServerQuery query,
+ SilcBool resolve);
+void silc_server_query_resolve(SilcServer server, SilcServerQuery query,
+ SilcPacketStream sock,
+ SilcClientEntry client_entry);
+void silc_server_query_resolve_reply(void *context, void *reply);
+void silc_server_query_send_reply(SilcServer server,
+ SilcServerQuery query,
+ SilcClientEntry *clients,
+ SilcUInt32 clients_count,
+ SilcServerEntry *servers,
+ SilcUInt32 servers_count,
+ SilcChannelEntry *channels,
+ SilcUInt32 channels_count);
+SilcBuffer silc_server_query_reply_attrs(SilcServer server,
+ SilcServerQuery query,
+ SilcClientEntry client_entry);
/* Free the query context structure and all allocated resources. */
silc_server_command_free(query->cmd);
- silc_free(query->nickname);
- silc_free(query->nick_server);
+ for (i = 0; i < query->queries_count; i++)
+ silc_free(query->queries[i].id);
+ silc_free(query->queries);
+
silc_free(query->server_name);
silc_free(query->channel_name);
if (query->attrs)
silc_attribute_payload_list_free(query->attrs);
+ for (i = 0; i < query->errors_count; i++)
+ silc_free(query->errors[i].id);
silc_free(query->errors);
memset(query, 'F', sizeof(*query));
silc_free(query);
}
-/* Check whether command reply contained error, and reply the error to
- the original sender if it occurred. */
-
-bool silc_server_query_check_error(SilcServer server,
- SilcServerQuery query,
- SilcServerCommandReplyContext cmdr)
-{
- if (!cmdr)
- return FALSE;
-
- if (!silc_command_get_status(cmdr->payload, NULL, NULL)) {
- SilcBuffer buffer;
-
- /* Send the same command reply payload which contains the error */
- silc_command_set_command(cmdr->payload, query->querycmd);
- silc_command_set_ident(cmdr->payload,
- silc_command_get_ident(query->cmd->payload));
- buffer = silc_command_payload_encode_payload(cmdr->payload);
- silc_server_packet_send(server, query->cmd->sock,
- SILC_PACKET_COMMAND_REPLY, 0,
- buffer->data, buffer->len, FALSE);
- silc_buffer_free(buffer);
- return TRUE;
- }
-
- return FALSE;
-}
-
/* Send error reply indicated by the `error' to the original sender of
the query. */
SilcStatus error, ...)
{
va_list va;
- SilcBuffer packet;
unsigned char *data = NULL;
SilcUInt32 data_len = 0, data_type = 0, argc = 0;
data_len = va_arg(va, SilcUInt32);
}
+ SILC_LOG_DEBUG(("ERROR: %s (%d)", silc_get_status_message(error), error));
+
/* Send the command reply with error */
- packet = silc_command_reply_payload_encode_va(
- query->querycmd, error, 0,
- silc_command_get_ident(query->cmd->payload),
- argc, data_type, data, data_len);
- silc_server_packet_send(server, query->cmd->sock,
- SILC_PACKET_COMMAND_REPLY, 0,
- packet->data, packet->len, FALSE);
-
- silc_buffer_free(packet);
+ silc_server_send_command_reply(server, query->cmd->sock,
+ query->querycmd, error, 0,
+ silc_command_get_ident(query->cmd->payload),
+ argc, data_type, data, data_len);
va_end(va);
}
/* Add error to error list. Multiple errors may occur during the query
processing and this function can be used to add one error. The
- `type_index' is the index to the command context which includes the
- argument which caused the error. */
+ `index' is the index to the command context which includes the argument
+ which caused the error, or it is the index to query->ids, depending
+ on value of `type'. If `type' is 0 the index is to query->ids, if
+ it is 1 it is index to the command context arguments, and if it is
+ 2 the index is ignored and no argument is included in the error. */
void silc_server_query_add_error(SilcServer server,
SilcServerQuery query,
- bool from_cmd,
+ SilcUInt32 type,
SilcUInt32 index,
SilcStatus error)
{
if (!query->errors)
return;
query->errors[query->errors_count].index = index;
- query->errors[query->errors_count].from_cmd = from_cmd;
+ query->errors[query->errors_count].type = type;
query->errors[query->errors_count].error = error;
+ query->errors[query->errors_count].id = NULL;
+ query->errors[query->errors_count].id_type = 0;
+ query->errors_count++;
+}
+
+/* Same as silc_server_query_add_error but adds the ID data to be used
+ with error sending with this error type. */
+
+void silc_server_query_add_error_id(SilcServer server,
+ SilcServerQuery query,
+ SilcStatus error,
+ void *id, SilcIdType id_type)
+{
+ query->errors = silc_realloc(query->errors, sizeof(*query->errors) *
+ (query->errors_count + 1));
+ if (!query->errors)
+ return;
+ query->errors[query->errors_count].index = 0;
+ query->errors[query->errors_count].type = 0;
+ query->errors[query->errors_count].error = error;
+ query->errors[query->errors_count].id = silc_id_dup(id, id_type);
+ query->errors[query->errors_count].id_type = id_type;
query->errors_count++;
}
to the entity who sent this query to us automatically. Returns
TRUE if the query is being processed or FALSE on error. */
-bool silc_server_query_command(SilcServer server, SilcCommand querycmd,
- SilcServerCommandContext cmd)
+SilcBool silc_server_query_command(SilcServer server,
+ SilcCommand querycmd,
+ SilcServerCommandContext cmd,
+ void *old_query)
{
SilcServerQuery query;
+ SILC_LOG_DEBUG(("Query %s command", silc_get_command_name(querycmd)));
+
+ if (!old_query) {
+ query = silc_calloc(1, sizeof(*query));
+ query->querycmd = querycmd;
+ query->cmd = silc_server_command_dup(cmd);
+ query->router = SILC_PRIMARY_ROUTE(server);
+ } else
+ query = old_query;
+
switch (querycmd) {
case SILC_COMMAND_WHOIS:
- {
- query = silc_calloc(1, sizeof(*query));
- query->querycmd = querycmd;
- query->cmd = silc_server_command_dup(cmd);
-
- /* If we are normal server and query contains nickname, send it
- directly to router. */
- if (server->server_type == SILC_SERVER && !server->standalone &&
- silc_argument_get_arg_type(cmd->args, 1, NULL)) {
- silc_server_query_send_router(server, query);
- break;
- }
-
- /* Now parse the WHOIS query */
- silc_server_query_parse(server, query);
+ /* If we are normal server and query contains nickname OR query
+ doesn't contain nickname or ids BUT attributes, send it to the
+ router */
+ if (server->server_type != SILC_ROUTER && !server->standalone &&
+ cmd->sock != SILC_PRIMARY_ROUTE(server) &&
+ (silc_argument_get_arg_type(cmd->args, 1, NULL) ||
+ (!silc_argument_get_arg_type(cmd->args, 1, NULL) &&
+ !silc_argument_get_arg_type(cmd->args, 4, NULL) &&
+ silc_argument_get_arg_type(cmd->args, 3, NULL)))) {
+ if (!silc_server_query_parse(server, query, TRUE))
+ return FALSE;
+ silc_server_query_send_router(server, query);
+ return TRUE;
}
break;
case SILC_COMMAND_WHOWAS:
- {
- query = silc_calloc(1, sizeof(*query));
- query->querycmd = querycmd;
- query->cmd = silc_server_command_dup(cmd);
-
- /* WHOWAS query is always sent to router if we are normal server */
- if (server->server_type == SILC_SERVER && !server->standalone) {
- silc_server_query_send_router(server, query);
- break;
- }
-
- /* Now parse the WHOWAS query */
- silc_server_query_parse(server, query);
+ /* WHOWAS query is always sent to router if we are normal server */
+ if (server->server_type == SILC_SERVER && !server->standalone &&
+ cmd->sock != SILC_PRIMARY_ROUTE(server)) {
+ silc_server_query_send_router(server, query);
+ return TRUE;
}
break;
case SILC_COMMAND_IDENTIFY:
- {
- query = silc_calloc(1, sizeof(*query));
- query->querycmd = querycmd;
- query->cmd = silc_server_command_dup(cmd);
-
- /* If we are normal server and query does not contain IDs, send it
- directly to router (it contains nickname, server name or channel
- name). */
- if (server->server_type == SILC_SERVER && !server->standalone &&
- !silc_argument_get_arg_type(cmd->args, 5, NULL)) {
- silc_server_query_send_router(server, query);
- break;
- }
-
- /* Now parse the IDENTIFY query */
- silc_server_query_parse(server, query);
+ /* If we are normal server and query does not contain IDs, send it
+ directly to router (it contains nickname, server name or channel
+ name). */
+ if (server->server_type == SILC_SERVER && !server->standalone &&
+ cmd->sock != SILC_PRIMARY_ROUTE(server) &&
+ !silc_argument_get_arg_type(cmd->args, 5, NULL)) {
+ if (!silc_server_query_parse(server, query, TRUE))
+ return FALSE;
+ silc_server_query_send_router(server, query);
+ return TRUE;
}
break;
default:
SILC_LOG_ERROR(("Bad query using %d command", querycmd));
+ silc_server_query_free(query);
return FALSE;
}
+ /* Now parse the request */
+ silc_server_query_parse(server, query, FALSE);
+
return TRUE;
}
+/* Remote server connected callback. */
+
+void silc_server_query_connected(SilcServer server,
+ SilcServerEntry server_entry,
+ void *context)
+{
+ SilcServerQuery query = context;
+
+ if (!server_entry) {
+ /* Connecting failed */
+ SilcConnectionType type = (server->server_type == SILC_ROUTER ?
+ SILC_CONN_SERVER : SILC_CONN_ROUTER);
+
+ if (query->dynamic_prim /* && @serv != prim.host.name */ &&
+ !silc_server_num_sockets_by_remote(server, query->nick_server,
+ query->nick_server, 706, type)) {
+ /* Connection attempt to primary router failed, now try to the one
+ specified in nick@server. */
+ silc_server_create_connection(server, FALSE, TRUE, query->nick_server,
+ 706, silc_server_query_connected,
+ query);
+ query->dynamic_prim = FALSE;
+ return;
+ }
+
+ /* Process the query after failed connect. This will send error back
+ because such nick was not found. */
+ SILC_LOG_DEBUG(("Process query, connecting failed"));
+ silc_server_query_process(server, query, TRUE);
+ return;
+ }
+
+ /* Reprocess the query */
+ SILC_LOG_DEBUG(("Reprocess query after creating connection to %s",
+ server_entry->server_name));
+ query->router = server_entry->data.sconn->sock;
+ silc_server_query_command(server, query->querycmd, query->cmd, query);
+}
+
/* Send the received query to our primary router since we could not
handle the query directly. We will reprocess the query after our
router replies back. */
SilcBuffer tmpbuf;
SilcUInt16 old_ident;
+ SILC_LOG_DEBUG(("Forwarding the query to router %p for processing",
+ query->router));
+
+ /* Statistics */
+ server->stat.commands_sent++;
+
/* Send WHOIS command to our router */
old_ident = silc_command_get_ident(query->cmd->payload);
silc_command_set_ident(query->cmd->payload, ++server->cmd_ident);
tmpbuf = silc_command_payload_encode_payload(query->cmd->payload);
- silc_server_packet_send(server,
- SILC_PRIMARY_ROUTE(server),
+ silc_server_packet_send(server, query->router,
SILC_PACKET_COMMAND, 0,
- tmpbuf->data, tmpbuf->len, TRUE);
+ tmpbuf->data, silc_buffer_len(tmpbuf));
silc_command_set_ident(query->cmd->payload, old_ident);
silc_buffer_free(tmpbuf);
+ query->resolved = TRUE;
+
/* Continue parsing the query after received reply from router */
silc_server_command_pending(server, query->querycmd, server->cmd_ident,
silc_server_query_send_router_reply, query);
{
SilcServerQuery query = context;
SilcServer server = query->cmd->server;
+ SilcServerCommandReplyContext cmdr = reply;
+
+ SILC_LOG_DEBUG(("Received reply from router to query"));
+
+ /* If the original command caller has gone away, just stop. */
+ if (!silc_packet_stream_is_valid(query->cmd->sock)) {
+ SILC_LOG_DEBUG(("Original command caller vanished"));
+ silc_server_query_free(query);
+ return;
+ }
/* Check if router sent error reply */
- if (!silc_server_query_check_error(server, query, reply)) {
+ if (cmdr && !silc_command_get_status(cmdr->payload, NULL, NULL)) {
+ SilcBuffer buffer;
+ SilcConnectionType type = (server->server_type == SILC_ROUTER ?
+ SILC_CONN_SERVER : SILC_CONN_ROUTER);
+
+ /* If this was nick@server query, retry to @serv if the primary router
+ returned error. */
+ if (query->nick_server[0] && !query->dynamic_retry &&
+ !silc_server_num_sockets_by_remote(server, query->nick_server,
+ query->nick_server, 706, type)) {
+ SILC_LOG_DEBUG(("Retry query by connecting to %s:%d",
+ query->nick_server, 706));
+ silc_server_create_connection(server, FALSE, TRUE, query->nick_server,
+ 706, silc_server_query_connected,
+ query);
+ query->dynamic_retry = TRUE;
+ query->resolved = FALSE;
+ return;
+ }
+
+ SILC_LOG_DEBUG(("Sending error to original query"));
+
+ /* Statistics */
+ server->stat.commands_sent++;
+
+ /* Send the same command reply payload which contains the error */
+ silc_command_set_command(cmdr->payload, query->querycmd);
+ silc_command_set_ident(cmdr->payload,
+ silc_command_get_ident(query->cmd->payload));
+ buffer = silc_command_payload_encode_payload(cmdr->payload);
+ silc_server_packet_send(server, query->cmd->sock,
+ SILC_PACKET_COMMAND_REPLY, 0,
+ buffer->data, silc_buffer_len(buffer));
+ silc_buffer_free(buffer);
silc_server_query_free(query);
return;
}
/* Continue with parsing */
- silc_server_query_parse(server, query);
+ silc_server_query_parse(server, query, FALSE);
}
/* Parse the command query and start processing the queries in detail. */
-void silc_server_query_parse(SilcServer server, SilcServerQuery query)
+SilcBool silc_server_query_parse(SilcServer server, SilcServerQuery query,
+ SilcBool parse_only)
{
SilcServerCommandContext cmd = query->cmd;
+ SilcIDListData idata = silc_packet_get_context(cmd->sock);
unsigned char *tmp;
SilcUInt32 tmp_len, argc = silc_argument_get_arg_num(cmd->args);
- void *id;
- SilcIdType id_type;
+ SilcID id;
int i;
+ SILC_LOG_DEBUG(("Parsing %s query",
+ silc_get_command_name(query->querycmd)));
+
+ if (query->parsed)
+ goto parsed;
+
switch (query->querycmd) {
case SILC_COMMAND_WHOIS:
- {
- /* Get Client IDs if present. Take IDs always instead of nickname. */
- tmp = silc_argument_get_arg_type(cmd->args, 4, &tmp_len);
- if (!tmp) {
+ /* Get requested attributes if set */
+ tmp = silc_argument_get_arg_type(cmd->args, 3, &tmp_len);
+ if (tmp && !query->attrs && tmp_len <= SILC_ATTRIBUTE_MAX_REQUEST_LEN) {
+ query->attrs = silc_attribute_payload_parse(tmp, tmp_len);
+
+ /* When Requested Attributes is present we will assure that this
+ client cannot execute the WHOIS command too fast. This would be
+ same as having SILC_CF_LAG_STRICT. */
+ if (idata && idata->conn_type == SILC_CONN_CLIENT)
+ ((SilcClientEntry)idata)->fast_command = 6;
+ }
- /* Get nickname */
- tmp = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
- if (!tmp) {
- silc_server_query_send_error(server, query,
- SILC_STATUS_ERR_NOT_ENOUGH_PARAMS, 0);
- silc_server_query_free(query);
- return;
- }
+ /* Get Client IDs if present. Take IDs always instead of nickname. */
+ tmp = silc_argument_get_arg_type(cmd->args, 4, &tmp_len);
+ if (!tmp) {
- /* Get the nickname@server string and parse it */
- if (!silc_parse_userfqdn(tmp, &query->nickname, &query->nick_server)) {
+ /* Get nickname */
+ tmp = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
+ if (!tmp && !query->attrs) {
+ /* No nickname, no ids and no attributes - send error */
+ silc_server_query_send_error(server, query,
+ SILC_STATUS_ERR_NOT_ENOUGH_PARAMS, 0);
+ silc_server_query_free(query);
+ return FALSE;
+ }
+
+ /* Get the nickname@server string and parse it */
+ if (tmp && ((tmp_len > 128) ||
+ !silc_parse_userfqdn(tmp, query->nickname,
+ sizeof(query->nickname),
+ query->nick_server,
+ sizeof(query->nick_server)))) {
+ silc_server_query_send_error(server, query,
+ SILC_STATUS_ERR_BAD_NICKNAME, 0);
+ silc_server_query_free(query);
+ return FALSE;
+ }
+
+ /* Check nickname */
+ if (tmp) {
+ tmp = silc_identifier_check(query->nickname, strlen(query->nickname),
+ SILC_STRING_UTF8, 128, &tmp_len);
+ if (!tmp) {
silc_server_query_send_error(server, query,
SILC_STATUS_ERR_BAD_NICKNAME, 0);
silc_server_query_free(query);
- return;
+ return FALSE;
}
+ memset(query->nickname, 0, sizeof(query->nickname));
+ silc_snprintf(query->nickname, sizeof(query->nickname), "%s", tmp);
+ silc_free(tmp);
+ }
- } else {
- /* Parse the IDs included in the query */
- query->ids = silc_calloc(argc, sizeof(*query->ids));
+ } else {
+ /* Parse the IDs included in the query */
+ query->ids = silc_calloc(argc, sizeof(*query->ids));
- for (i = 0; i < argc; i++) {
- tmp = silc_argument_get_arg_type(cmd->args, i + 4, &tmp_len);
- if (!tmp)
- continue;
+ for (i = 0; i < argc; i++) {
+ tmp = silc_argument_get_arg_type(cmd->args, i + 4, &tmp_len);
+ if (!tmp)
+ continue;
- id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
- if (!id) {
- silc_server_query_add_error(server, query, TRUE, i + 4,
- SILC_STATUS_ERR_BAD_CLIENT_ID);
- continue;
- }
+ if (!silc_id_payload_parse_id(tmp, tmp_len, &id) ||
+ id.type != SILC_ID_CLIENT) {
+ silc_server_query_add_error(server, query, 1, i + 4,
+ SILC_STATUS_ERR_BAD_CLIENT_ID);
+ continue;
+ }
- query->ids[query->ids_count].id = id;
- query->ids[query->ids_count].id_type = SILC_ID_CLIENT;
- query->ids_count++;
+ /* Normal server must check whether this ID exist, and if not then
+ send the query to router, unless done so already */
+ if (server->server_type == SILC_SERVER && !query->resolved) {
+ if (!silc_idlist_find_client_by_id(server->local_list,
+ &id.u.client_id, TRUE, NULL)) {
+ if (idata->conn_type != SILC_CONN_CLIENT ||
+ !silc_idlist_find_client_by_id(server->global_list,
+ &id.u.client_id, TRUE, NULL)) {
+ silc_server_query_send_router(server, query);
+ for (i = 0; i < query->ids_count; i++)
+ silc_free(query->ids[i].id);
+ silc_free(query->ids);
+ query->ids = NULL;
+ query->ids_count = 0;
+ return FALSE;
+ }
+ }
}
+
+ query->ids[query->ids_count].id = silc_id_dup(&id.u.client_id,
+ SILC_ID_CLIENT);
+ query->ids[query->ids_count].id_type = SILC_ID_CLIENT;
+ query->ids_count++;
}
+ }
- /* Get the max count of reply messages allowed */
- tmp = silc_argument_get_arg_type(cmd->args, 2, &tmp_len);
- if (tmp && tmp_len == sizeof(SilcUInt32))
- SILC_GET32_MSB(query->reply_count, tmp);
+ /* Get the max count of reply messages allowed */
+ tmp = silc_argument_get_arg_type(cmd->args, 2, &tmp_len);
+ if (tmp && tmp_len == sizeof(SilcUInt32))
+ SILC_GET32_MSB(query->reply_count, tmp);
+ break;
- /* Get requested attributes if set */
- tmp = silc_argument_get_arg_type(cmd->args, 3, &tmp_len);
- if (tmp)
- query->attrs = silc_attribute_payload_parse_list(tmp, tmp_len);
+ case SILC_COMMAND_WHOWAS:
+ /* Get nickname */
+ tmp = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
+ if (!tmp) {
+ silc_server_query_send_error(server, query,
+ SILC_STATUS_ERR_NOT_ENOUGH_PARAMS, 0);
+ silc_server_query_free(query);
+ return FALSE;
+ }
+
+ /* Get the nickname@server string and parse it */
+ if (tmp_len > 128 ||
+ !silc_parse_userfqdn(tmp, query->nickname, sizeof(query->nickname),
+ query->nick_server, sizeof(query->nick_server))) {
+ silc_server_query_send_error(server, query,
+ SILC_STATUS_ERR_BAD_NICKNAME, 0);
+ silc_server_query_free(query);
+ return FALSE;
+ }
+
+ /* Check nickname */
+ tmp = silc_identifier_check(query->nickname, strlen(query->nickname),
+ SILC_STRING_UTF8, 128, &tmp_len);
+ if (!tmp) {
+ silc_server_query_send_error(server, query,
+ SILC_STATUS_ERR_BAD_NICKNAME, 0);
+ silc_server_query_free(query);
+ return FALSE;
}
+ memset(query->nickname, 0, sizeof(query->nickname));
+ silc_snprintf(query->nickname, sizeof(query->nickname), "%s", tmp);
+ silc_free(tmp);
+
+ /* Get the max count of reply messages allowed */
+ tmp = silc_argument_get_arg_type(cmd->args, 2, &tmp_len);
+ if (tmp && tmp_len == sizeof(SilcUInt32))
+ SILC_GET32_MSB(query->reply_count, tmp);
break;
- case SILC_COMMAND_WHOWAS:
- {
- /* Get nickname */
+ case SILC_COMMAND_IDENTIFY:
+ /* Get IDs if present. Take IDs always instead of names. */
+ tmp = silc_argument_get_arg_type(cmd->args, 5, &tmp_len);
+ if (!tmp) {
+
+ /* Try get nickname */
tmp = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
- if (!tmp) {
- silc_server_query_send_error(server, query,
- SILC_STATUS_ERR_NOT_ENOUGH_PARAMS, 0);
- silc_server_query_free(query);
- return;
+ if (tmp) {
+ /* Get the nickname@server string and parse it */
+ if (tmp_len > 128 ||
+ !silc_parse_userfqdn(tmp, query->nickname,
+ sizeof(query->nickname),
+ query->nick_server,
+ sizeof(query->nick_server)))
+ silc_server_query_add_error(server, query, 1, 1,
+ SILC_STATUS_ERR_BAD_NICKNAME);
+
+ /* Check nickname */
+ tmp = silc_identifier_check(query->nickname, strlen(query->nickname),
+ SILC_STRING_UTF8, 128, &tmp_len);
+ if (!tmp) {
+ silc_server_query_send_error(server, query,
+ SILC_STATUS_ERR_BAD_NICKNAME, 0);
+ silc_server_query_free(query);
+ return FALSE;
+ }
+ memset(query->nickname, 0, sizeof(query->nickname));
+ silc_snprintf(query->nickname, sizeof(query->nickname), "%s", tmp);
+ silc_free(tmp);
}
- /* Get the nickname@server string and parse it */
- if (!silc_parse_userfqdn(tmp, &query->nickname, &query->nick_server)) {
+ /* Try get server name */
+ tmp = silc_argument_get_arg_type(cmd->args, 2, &tmp_len);
+ if (tmp) {
+ /* Check server name */
+ tmp = silc_identifier_check(tmp, tmp_len, SILC_STRING_UTF8,
+ 256, &tmp_len);
+ if (!tmp) {
+ silc_server_query_send_error(server, query,
+ SILC_STATUS_ERR_BAD_SERVER, 0);
+ silc_server_query_free(query);
+ return FALSE;
+ }
+ query->server_name = tmp;
+ }
+
+ /* Get channel name */
+ tmp = silc_argument_get_arg_type(cmd->args, 3, &tmp_len);
+ if (tmp && tmp_len <= 256) {
+ /* Check channel name */
+ tmp = silc_identifier_check(tmp, tmp_len, SILC_STRING_UTF8,
+ 256, &tmp_len);
+ if (!tmp) {
+ silc_server_query_send_error(server, query,
+ SILC_STATUS_ERR_BAD_CHANNEL, 0);
+ silc_server_query_free(query);
+ return FALSE;
+ }
+ query->channel_name = tmp;
+ }
+
+ if (!query->nickname[0] && !query->server_name && !query->channel_name) {
silc_server_query_send_error(server, query,
- SILC_STATUS_ERR_BAD_NICKNAME, 0);
+ SILC_STATUS_ERR_NOT_ENOUGH_PARAMS, 0);
silc_server_query_free(query);
- return;
+ return FALSE;
}
- /* Get the max count of reply messages allowed */
- tmp = silc_argument_get_arg_type(cmd->args, 2, &tmp_len);
- if (tmp && tmp_len == sizeof(SilcUInt32))
- SILC_GET32_MSB(query->reply_count, tmp);
+ } else {
+ /* Parse the IDs included in the query */
+ query->ids = silc_calloc(argc, sizeof(*query->ids));
+
+ for (i = 0; i < argc; i++) {
+ tmp = silc_argument_get_arg_type(cmd->args, i + 5, &tmp_len);
+ if (!tmp)
+ continue;
+
+ if (!silc_id_payload_parse_id(tmp, tmp_len, &id)) {
+ silc_server_query_add_error(server, query, 1, i + 5,
+ SILC_STATUS_ERR_BAD_CLIENT_ID);
+ continue;
+ }
+
+ /* Normal server must check whether this ID exist, and if not then
+ send the query to router, unless done so already */
+ if (server->server_type == SILC_SERVER && !query->resolved) {
+ if (id.type == SILC_ID_CLIENT) {
+ if (!silc_idlist_find_client_by_id(server->local_list,
+ &id.u.client_id, TRUE, NULL)) {
+ if (idata->conn_type != SILC_CONN_CLIENT ||
+ !silc_idlist_find_client_by_id(server->global_list,
+ &id.u.client_id, TRUE,
+ NULL)) {
+ silc_server_query_send_router(server, query);
+ for (i = 0; i < query->ids_count; i++)
+ silc_free(query->ids[i].id);
+ silc_free(query->ids);
+ query->ids = NULL;
+ query->ids_count = 0;
+ return FALSE;
+ }
+ }
+ } else {
+ /* For now all other ID's except Client ID's are explicitly
+ sent to router for resolving. */
+ silc_server_query_send_router(server, query);
+ for (i = 0; i < query->ids_count; i++)
+ silc_free(query->ids[i].id);
+ silc_free(query->ids);
+ query->ids = NULL;
+ query->ids_count = 0;
+ return FALSE;
+ }
+ }
+
+ if (id.type == SILC_ID_CLIENT)
+ query->ids[query->ids_count].id = silc_id_dup(&id.u.client_id,
+ SILC_ID_CLIENT);
+ if (id.type == SILC_ID_SERVER)
+ query->ids[query->ids_count].id = silc_id_dup(&id.u.server_id,
+ SILC_ID_SERVER);
+ if (id.type == SILC_ID_CHANNEL)
+ query->ids[query->ids_count].id = silc_id_dup(&id.u.channel_id,
+ SILC_ID_CHANNEL);
+ query->ids[query->ids_count].id_type = id.type;
+ query->ids_count++;
+ }
}
+
+ /* Get the max count of reply messages allowed */
+ tmp = silc_argument_get_arg_type(cmd->args, 4, &tmp_len);
+ if (tmp && tmp_len == sizeof(SilcUInt32))
+ SILC_GET32_MSB(query->reply_count, tmp);
break;
+ }
- case SILC_COMMAND_IDENTIFY:
- {
- /* Get IDs if present. Take IDs always instead of names. */
- tmp = silc_argument_get_arg_type(cmd->args, 5, &tmp_len);
- if (!tmp) {
-
- /* Try get nickname */
- tmp = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
- if (tmp) {
- /* Get the nickname@server string and parse it */
- if (!silc_parse_userfqdn(tmp, &query->nickname, &query->nick_server))
- silc_server_query_add_error(server, query, TRUE, 1,
- SILC_STATUS_ERR_BAD_NICKNAME);
+ query->parsed = TRUE;
+
+ parsed:
+ if (!parse_only && query->nickname) {
+ switch (query->querycmd) {
+ case SILC_COMMAND_WHOIS:
+ case SILC_COMMAND_IDENTIFY:
+ /* Check server name. If we are open server and don't yet have
+ connection to remote router, create it now. */
+ if (query->nick_server[0] && server->config->dynamic_server &&
+ !query->resolved) {
+ /* If primary router is specified, use that. Otherwise connect
+ to the server in nick@server string. */
+ SilcServerConfigRouter *router;
+ SilcConnectionType type = (server->server_type == SILC_ROUTER ?
+ SILC_CONN_SERVER : SILC_CONN_ROUTER);
+
+ router = silc_server_config_get_primary_router(server);
+ if (router && server->standalone) {
+ /* Create connection to primary router */
+ SILC_LOG_DEBUG(("Create dynamic connection to primary router %s:%d",
+ router->host, router->port));
+ query->dynamic_prim = TRUE;
+ silc_server_create_connection(server, FALSE, TRUE,
+ router->host, router->port,
+ silc_server_query_connected, query);
+ return FALSE;
+ } else if (!silc_server_num_sockets_by_remote(server,
+ query->nick_server,
+ query->nick_server,
+ 706, type)) {
+ /* Create connection and handle the query after connection */
+ SILC_LOG_DEBUG(("Create dynamic connection to %s:%d",
+ query->nick_server, 706));
+ silc_server_create_connection(server, FALSE, TRUE,
+ query->nick_server, 706,
+ silc_server_query_connected, query);
+ return FALSE;
}
+ }
+ }
+ }
- /* Try get server name */
- tmp = silc_argument_get_arg_type(cmd->args, 2, &tmp_len);
- if (tmp)
- query->server_name = silc_memdup(tmp, tmp_len);
+ /* Start processing the query information */
+ if (!parse_only)
+ silc_server_query_process(server, query, TRUE);
- /* Get channel name */
- tmp = silc_argument_get_arg_type(cmd->args, 3, &tmp_len);
- if (tmp)
- query->channel_name = silc_memdup(tmp, tmp_len);
+ return TRUE;
+}
- } else {
- /* Parse the IDs included in the query */
- query->ids = silc_calloc(argc, sizeof(*query->ids));
+/* Context for holding clients searched by public key. */
+typedef struct {
+ SilcClientEntry **clients;
+ SilcUInt32 *clients_count;
+ SilcBool found;
+} *SilcServerPublicKeyUser, SilcServerPublicKeyUserStruct;
+
+/* SKR find callbcak */
+
+static void silc_server_query_skr_callback(SilcSKR skr,
+ SilcSKRFind find,
+ SilcSKRStatus status,
+ SilcDList keys,
+ void *context)
+{
+ SilcServerPublicKeyUser uc = context;
+ SilcSKRKey key;
- for (i = 0; i < argc; i++) {
- tmp = silc_argument_get_arg_type(cmd->args, i + 5, &tmp_len);
- if (!tmp)
- continue;
+ if (keys) {
+ (*uc->clients) = silc_realloc((*uc->clients),
+ sizeof((**uc->clients)) *
+ ((*uc->clients_count) +
+ silc_dlist_count(keys)));
- id = silc_id_payload_parse_id(tmp, tmp_len, &id_type);
- if (!id) {
- silc_server_query_add_error(server, query, TRUE, i + 5,
- SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
- continue;
- }
+ silc_dlist_start(keys);
+ while ((key = silc_dlist_get(keys)))
+ (*uc->clients)[(*uc->clients_count)++] = key->key_context;
+
+ uc->found = TRUE;
+ silc_dlist_uninit(keys);
+ }
+
+ silc_skr_find_free(find);
+}
+
+/* If clients are set, limit the found clients using the attributes in
+ the query. If clients are not set, try to find some clients using
+ the attributes */
+
+void silc_server_query_check_attributes(SilcServer server,
+ SilcServerQuery query,
+ SilcClientEntry **clients,
+ SilcUInt32 *clients_count) {
+ SilcClientEntry entry;
+ SilcAttributePayload attr;
+ SilcAttribute attribute;
+ SilcAttributeObjPk pk;
+ SilcPublicKey publickey, cmp_pubkey;
+ SilcPKCSType type;
+ SilcBool found = FALSE, no_clients = FALSE, search_pubkey = FALSE;
+ int i;
+
+ /* If no clients were found, we only check the attributes
+ if the user wasn't searching for nickname/ids */
+ if (!(*clients)) {
+ no_clients = TRUE;
+ if (query->nickname[0] || query->ids_count)
+ return;
+ }
+
+ silc_dlist_start(query->attrs);
+ while ((attr = silc_dlist_get(query->attrs)) != SILC_LIST_END) {
+ attribute = silc_attribute_get_attribute(attr);
+ switch (attribute) {
+
+ case SILC_ATTRIBUTE_USER_PUBLIC_KEY:
+ SILC_LOG_DEBUG(("Finding clients by public key attribute"));
- query->ids[query->ids_count].id = id;
- query->ids[query->ids_count].id_type = id_type;
- query->ids_count++;
+ if (!silc_attribute_get_object(attr, &pk, sizeof(pk)))
+ continue;
+
+ if (!strcmp(pk.type, "silc-rsa"))
+ type = SILC_PKCS_SILC;
+ else if (!strcmp(pk.type, "ssh-rsa"))
+ type = SILC_PKCS_SSH2;
+ else if (!strcmp(pk.type, "x509v3-sign-rsa"))
+ type = SILC_PKCS_X509V3;
+ else if (!strcmp(pk.type, "pgp-sign-rsa"))
+ type = SILC_PKCS_OPENPGP;
+ else
+ continue;
+
+ if (!silc_pkcs_public_key_alloc(type, pk.data, pk.data_len,
+ &publickey)) {
+ silc_free(pk.type);
+ silc_free(pk.data);
+ continue;
}
- }
+ search_pubkey = TRUE;
- /* Get the max count of reply messages allowed */
- tmp = silc_argument_get_arg_type(cmd->args, 4, &tmp_len);
- if (tmp && tmp_len == sizeof(SilcUInt32))
- SILC_GET32_MSB(query->reply_count, tmp);
+ /* If no clients were set on calling this function, we just search
+ for clients, otherwise we try to limit the clients. */
+ if (no_clients) {
+ SilcServerPublicKeyUserStruct usercontext;
+ SilcSKRFind find;
+
+ usercontext.clients = clients;
+ usercontext.clients_count = clients_count;
+ usercontext.found = FALSE;
+
+ find = silc_skr_find_alloc();
+ if (!find)
+ continue;
+
+ silc_skr_find_set_public_key(find, publickey);
+ silc_skr_find_set_usage(find, SILC_SKR_USAGE_IDENTIFICATION);
+ silc_skr_find(server->repository, server->schedule,
+ find, silc_server_query_skr_callback, &usercontext);
+
+ if (usercontext.found == TRUE)
+ found = TRUE;
+ } else {
+ for (i = 0; i < *clients_count; i++) {
+ entry = (*clients)[i];
+
+ if (!entry->data.public_key)
+ continue;
+
+ if (silc_server_get_public_key_by_client(server, entry,
+ &cmp_pubkey)) {
+ if (silc_pkcs_public_key_compare(cmp_pubkey, publickey)) {
+ found = TRUE;
+ continue;
+ }
+ }
+
+ (*clients)[i] = NULL;
+ }
+ }
+ silc_free(pk.type);
+ silc_free(pk.data);
+ silc_pkcs_public_key_free(publickey);
+ break;
}
- break;
}
- /* Start processing the query information */
- silc_server_query_process(server, query);
+ if (!found && !query->nickname[0] && !query->ids)
+ silc_server_query_add_error(server, query, 2, 0,
+ search_pubkey ?
+ SILC_STATUS_ERR_NO_SUCH_PUBLIC_KEY :
+ SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
}
/* Processes the parsed query. This does the actual finding of the
queried information and prepares for sending reply to the original
- sender of the query command. It is guaranteed that this function
- (which may be slow) is called only once for entire query. */
+ sender of the query command. */
-void silc_server_query_process(SilcServer server, SilcServerQuery query)
+void silc_server_query_process(SilcServer server, SilcServerQuery query,
+ SilcBool resolve)
{
SilcServerCommandContext cmd = query->cmd;
- bool check_global = FALSE;
+ SilcIDListData idata = silc_packet_get_context(cmd->sock);
+ SilcBool check_global = FALSE;
void *entry;
- SilcClientEntry *clients = NULL;
+ SilcClientEntry *clients = NULL, client_entry;
SilcChannelEntry *channels = NULL;
SilcServerEntry *servers = NULL;
SilcUInt32 clients_count = 0, channels_count = 0, servers_count = 0;
int i;
+ SILC_LOG_DEBUG(("Processing %s query",
+ silc_get_command_name(query->querycmd)));
+
/* Check global lists if query is coming from client or we are not
normal server (we know global information). */
- if (cmd->sock->type == SILC_SOCKET_TYPE_CLIENT)
+ if (idata->conn_type == SILC_CONN_CLIENT)
check_global = TRUE;
else if (server->server_type != SILC_SERVER)
check_global = TRUE;
- if (query->nickname) {
+ if (query->nickname[0]) {
/* Get all clients matching nickname from local list */
- if (!silc_idlist_get_clients_by_hash(server->local_list,
- query->nickname, server->md5hash,
+ if (!silc_idlist_get_clients_by_hash(server->local_list,
+ query->nickname,
+ query->nick_server[0] ?
+ query->nick_server : NULL,
+ server->md5hash,
&clients, &clients_count))
- silc_idlist_get_clients_by_nickname(server->local_list,
+ silc_idlist_get_clients_by_nickname(server->local_list,
query->nickname,
- query->nick_server,
+ query->nick_server[0] ?
+ query->nick_server : NULL,
&clients, &clients_count);
/* Check global list as well */
if (check_global) {
- if (!silc_idlist_get_clients_by_hash(server->global_list,
- query->nickname, server->md5hash,
+ if (!silc_idlist_get_clients_by_hash(server->global_list,
+ query->nickname,
+ query->nick_server[0] ?
+ query->nick_server : NULL,
+ server->md5hash,
&clients, &clients_count))
- silc_idlist_get_clients_by_nickname(server->global_list,
+ silc_idlist_get_clients_by_nickname(server->global_list,
query->nickname,
- query->nick_server,
+ query->nick_server[0] ?
+ query->nick_server : NULL,
&clients, &clients_count);
}
if (!clients)
- silc_server_query_add_error(server, query, TRUE, 1,
+ silc_server_query_add_error(server, query, 1, 1,
SILC_STATUS_ERR_NO_SUCH_NICK);
}
}
if (!servers)
- silc_server_query_add_error(server, query, TRUE, 2,
+ silc_server_query_add_error(server, query, 1, 2,
SILC_STATUS_ERR_NO_SUCH_SERVER);
}
entry = silc_idlist_find_channel_by_name(server->global_list,
query->channel_name, NULL);
if (entry) {
- channels = silc_realloc(channels, sizeof(*channels) *
+ channels = silc_realloc(channels, sizeof(*channels) *
(channels_count + 1));
channels[channels_count++] = (SilcChannelEntry)entry;
}
if (!channels)
- silc_server_query_add_error(server, query, TRUE, 3,
+ silc_server_query_add_error(server, query, 1, 3,
SILC_STATUS_ERR_NO_SUCH_CHANNEL);
}
case SILC_ID_CLIENT:
/* Get client entry */
- entry = silc_idlist_find_client_by_id(server->local_list,
+ entry = silc_idlist_find_client_by_id(server->local_list,
id, TRUE, NULL);
if (!entry && check_global)
- entry = silc_idlist_find_client_by_id(server->global_list,
+ entry = silc_idlist_find_client_by_id(server->global_list,
id, TRUE, NULL);
if (!entry) {
- silc_server_query_add_error(server, query, FALSE, i,
+ silc_server_query_add_error(server, query, 0, i,
SILC_STATUS_ERR_NO_SUCH_CLIENT_ID);
continue;
}
- clients = silc_realloc(clients, sizeof(*clients) *
+ clients = silc_realloc(clients, sizeof(*clients) *
(clients_count + 1));
clients[clients_count++] = (SilcClientEntry)entry;
break;
case SILC_ID_SERVER:
/* Get server entry */
- entry = silc_idlist_find_server_by_id(server->local_list,
+ entry = silc_idlist_find_server_by_id(server->local_list,
id, TRUE, NULL);
if (!entry && check_global)
- entry = silc_idlist_find_server_by_id(server->global_list,
+ entry = silc_idlist_find_server_by_id(server->global_list,
id, TRUE, NULL);
if (!entry) {
- silc_server_query_add_error(server, query, FALSE, i,
+ silc_server_query_add_error(server, query, 0, i,
SILC_STATUS_ERR_NO_SUCH_SERVER_ID);
continue;
}
- servers = silc_realloc(servers, sizeof(*servers) *
+ servers = silc_realloc(servers, sizeof(*servers) *
(servers_count + 1));
servers[servers_count++] = (SilcServerEntry)entry;
break;
entry = silc_idlist_find_channel_by_id(server->global_list, id,
NULL);
if (!entry) {
- silc_server_query_add_error(server, query, FALSE, i,
+ silc_server_query_add_error(server, query, 0, i,
SILC_STATUS_ERR_NO_SUCH_CHANNEL_ID);
continue;
}
- channels = silc_realloc(channels, sizeof(*channels) *
+ channels = silc_realloc(channels, sizeof(*channels) *
(channels_count + 1));
channels[channels_count++] = (SilcChannelEntry)entry;
break;
}
}
+ /* Check the attributes to narrow down the search by using them. */
+ if (query->attrs)
+ silc_server_query_check_attributes(server, query, &clients,
+ &clients_count);
+
+ SILC_LOG_DEBUG(("Querying %d clients", clients_count));
+ SILC_LOG_DEBUG(("Querying %d servers", servers_count));
+ SILC_LOG_DEBUG(("Querying %d channels", channels_count));
+
/* If nothing was found, then just send the errors */
if (!clients && !channels && !servers) {
+ silc_server_query_send_reply(server, query, NULL, 0, NULL, 0, NULL, 0);
+ return;
+ }
- silc_server_query_free(query);
+ /* If caller does not want us to resolve anything (has resolved already)
+ then just continue with sending the reply */
+ if (!resolve) {
+ silc_server_query_send_reply(server, query, clients, clients_count,
+ servers, servers_count, channels,
+ channels_count);
+ silc_free(clients);
+ silc_free(servers);
+ silc_free(channels);
return;
}
/* Now process all found information and if necessary do some more
- querying. */
+ resolving. */
+ switch (query->querycmd) {
+
+ case SILC_COMMAND_WHOIS:
+ for (i = 0; i < clients_count; i++) {
+ client_entry = clients[i];
+ /* Check if cannot query this anyway, so take next one */
+ if (!client_entry ||
+ !(client_entry->data.status & SILC_IDLIST_STATUS_REGISTERED))
+ continue;
+
+ /* If Requested Attributes is set then we always resolve the client
+ information, if not then check whether the entry is complete or not
+ and decide whether we need to resolve or not. */
+ if (!query->attrs) {
+
+ /* Even if nickname and stuff are present, we may need to resolve
+ the entry */
+ if (client_entry->nickname && client_entry->username &&
+ client_entry->userinfo) {
+ /* Check if cannot query this anyway, so take next one */
+ if (!client_entry->router)
+ continue;
+
+ /* If we are router, client is local to us, or client is on channel
+ we do not need to resolve the client information. */
+ if (server->server_type != SILC_SERVER || SILC_IS_LOCAL(client_entry)
+ || silc_hash_table_count(client_entry->channels) ||
+ query->resolved)
+ continue;
+ }
+ }
+
+ /* Remove the NOATTR status periodically */
+ if (client_entry->data.status & SILC_IDLIST_STATUS_NOATTR &&
+ client_entry->updated + 600 < time(NULL))
+ client_entry->data.status &= ~SILC_IDLIST_STATUS_NOATTR;
+
+ /* When requested attributes is present and local client is detached
+ we cannot send the command to the client, we'll reply on behalf of
+ the client instead. */
+ if (query->attrs && SILC_IS_LOCAL(client_entry) &&
+ (client_entry->mode & SILC_UMODE_DETACHED ||
+ client_entry->data.status & SILC_IDLIST_STATUS_NOATTR))
+ continue;
+
+ /* If attributes are present in query, and in the entry and we have
+ done resolvings already we don't need to resolve anymore */
+ if (query->resolved && query->attrs && client_entry->attrs)
+ continue;
+
+ /* Resolve the detailed client information. If client is local we
+ know that attributes were present and we will resolve directly
+ from the client. Otherwise resolve from client's owner. */
+ silc_server_query_resolve(server, query,
+ (SILC_IS_LOCAL(client_entry) ?
+ client_entry->connection :
+ client_entry->router->connection),
+ client_entry);
+ }
+ break;
+
+ case SILC_COMMAND_WHOWAS:
+ for (i = 0; i < clients_count; i++) {
+ client_entry = clients[i];
+
+ /* Check if cannot query this anyway, so take next one */
+ if (!client_entry || !client_entry->router ||
+ client_entry->data.status & SILC_IDLIST_STATUS_REGISTERED)
+ continue;
+
+ /* If both nickname and username are present no resolving is needed */
+ if (client_entry->nickname && client_entry->username)
+ continue;
+
+ /* Resolve the detailed client information */
+ silc_server_query_resolve(server, query,
+ client_entry->router->connection,
+ client_entry);
+ }
+ break;
+
+ case SILC_COMMAND_IDENTIFY:
+ for (i = 0; i < clients_count; i++) {
+ client_entry = clients[i];
+
+ /* Check if cannot query this anyway, so take next one */
+ if (!client_entry || !client_entry->router ||
+ !(client_entry->data.status & SILC_IDLIST_STATUS_REGISTERED))
+ continue;
+
+ /* Even if nickname is present, we may need to resolve the entry */
+ if (client_entry->nickname) {
+
+ /* If we are router, client is local to us, or client is on channel
+ we do not need to resolve the client information. */
+ if (server->server_type != SILC_SERVER || SILC_IS_LOCAL(client_entry)
+ || silc_hash_table_count(client_entry->channels) ||
+ query->resolved)
+ continue;
+ }
+
+ /* Resolve the detailed client information */
+ silc_server_query_resolve(server, query,
+ client_entry->router->connection,
+ client_entry);
+ }
+ break;
+ }
+
+ if (!query->queries_count)
+ /* If we didn't have to do any resolving, continue with sending the
+ command reply to the original sender. */
+ silc_server_query_send_reply(server, query, clients, clients_count,
+ servers, servers_count, channels,
+ channels_count);
+ else
+ /* Now actually send the resolvings we gathered earlier */
+ silc_server_query_resolve(server, query, NULL, NULL);
+
+ silc_free(clients);
+ silc_free(servers);
+ silc_free(channels);
+}
+
+/* Resolve the detailed information for the `client_entry'. Only client
+ information needs to be resolved for being incomplete. Each incomplete
+ client entry calls this function to do the resolving. */
+
+void silc_server_query_resolve(SilcServer server, SilcServerQuery query,
+ SilcPacketStream sock,
+ SilcClientEntry client_entry)
+{
+ SilcServerCommandContext cmd = query->cmd;
+ SilcServerQueryList r = NULL;
+ SilcBuffer idp;
+ unsigned char *tmp;
+ SilcUInt32 len;
+ SilcUInt16 ident;
+ int i;
+
+ if (!sock && client_entry)
+ return;
+
+ /* If arguments are NULL we will now actually send the resolvings
+ that earlier has been gathered by calling this function. */
+ if (!sock && !client_entry) {
+ SilcBuffer res_cmd;
+
+ SILC_LOG_DEBUG(("Sending the resolvings"));
+
+ /* WHOWAS resolving has been done at the same time this function
+ was called to add the resolving for WHOWAS, so just return. */
+ if (query->querycmd == SILC_COMMAND_WHOWAS)
+ return;
+
+ for (i = 0; i < query->querylist_count; i++) {
+ r = &query->querylist[i];
+
+ /* If Requested Attributes were present put them to this resolving */
+ if (query->attrs && query->querycmd == SILC_COMMAND_WHOIS) {
+ len = r->argc + 1;
+ r->arg = silc_realloc(r->arg, sizeof(*r->arg) * len);
+ r->arg_lens = silc_realloc(r->arg_lens, sizeof(*r->arg_lens) * len);
+ r->arg_types = silc_realloc(r->arg_types, sizeof(*r->arg_types) * len);
+
+ tmp = silc_argument_get_arg_type(cmd->args, 3, &len);
+ if (tmp)
+ r->arg[r->argc] = silc_memdup(tmp, len);
+ r->arg_lens[r->argc] = len;
+ r->arg_types[r->argc] = 3;
+ r->argc++;
+ }
+
+ /* Statistics */
+ server->stat.commands_sent++;
+
+ /* Send WHOIS command */
+ res_cmd = silc_command_payload_encode(SILC_COMMAND_WHOIS,
+ r->argc, r->arg, r->arg_lens,
+ r->arg_types, r->ident);
+ silc_server_packet_send(server, r->sock, SILC_PACKET_COMMAND, 0,
+ res_cmd->data, silc_buffer_len(res_cmd));
+ silc_buffer_free(res_cmd);
+
+ /* Reprocess this packet after received reply */
+ if (silc_server_command_pending_timed(server, SILC_COMMAND_WHOIS,
+ r->ident,
+ silc_server_query_resolve_reply,
+ query, r->timeout))
+ query->queries_left++;
+ }
+
+ /* Cleanup this temporary context */
+ for (i = 0; i < query->querylist_count; i++) {
+ int k;
+ for (k = 0; k < query->querylist[i].argc; k++)
+ silc_free(query->querylist[i].arg[k]);
+ silc_free(query->querylist[i].arg);
+ silc_free(query->querylist[i].arg_lens);
+ silc_free(query->querylist[i].arg_types);
+ }
+ silc_free(query->querylist);
+ query->querylist = NULL;
+ query->querylist_count = 0;
+ return;
+ }
+
+ SILC_LOG_DEBUG(("Resolving client information"));
+
+ if (client_entry->data.status & SILC_IDLIST_STATUS_RESOLVING) {
+ /* The entry is being resolved by some other external query already.
+ Attach to that query instead of resolving again. */
+ ident = client_entry->resolve_cmd_ident;
+ if (silc_server_command_pending(server, SILC_COMMAND_NONE, ident,
+ silc_server_query_resolve_reply, query))
+ query->queries_left++;
+ } else {
+ /* This entry will be resolved */
+ ident = ++server->cmd_ident;
+
+ switch (query->querycmd) {
+
+ case SILC_COMMAND_WHOIS:
+ case SILC_COMMAND_IDENTIFY:
+ /* Take existing query context if exist for this connection */
+ for (i = 0; i < query->querylist_count; i++)
+ if (query->querylist[i].sock == sock) {
+ r = &query->querylist[i];
+ break;
+ }
+
+ if (!r) {
+ /* Allocate new temp query list context */
+ query->querylist = silc_realloc(query->querylist,
+ sizeof(*query->querylist) *
+ (query->querylist_count + 1));
+ r = &query->querylist[query->querylist_count];
+ query->querylist_count++;
+ memset(r, 0, sizeof(*r));
+ r->sock = sock;
+ r->ident = ident;
+ if (SILC_IS_LOCAL(client_entry))
+ r->timeout = 3;
+ }
+
+ len = r->argc + 1;
+ r->arg = silc_realloc(r->arg, sizeof(*r->arg) * len);
+ r->arg_lens = silc_realloc(r->arg_lens, sizeof(*r->arg_lens) * len);
+ r->arg_types = silc_realloc(r->arg_types, sizeof(*r->arg_types) * len);
+
+ /* Add the client entry to be resolved */
+ idp = silc_id_payload_encode(client_entry->id, SILC_ID_CLIENT);
+ r->arg[r->argc] = silc_memdup(idp->data, silc_buffer_len(idp));
+ r->arg_lens[r->argc] = silc_buffer_len(idp);
+ r->arg_types[r->argc] = r->argc + 4;
+ r->argc++;
+ silc_buffer_free(idp);
+
+ break;
+
+ case SILC_COMMAND_WHOWAS:
+ /* We must send WHOWAS command since it's the only the way of
+ resolving clients that are not present in the network anymore. */
+ silc_server_send_command(server, sock, query->querycmd, ident, 1,
+ 1, query->nickname, strlen(query->nickname));
+ if (silc_server_command_pending(server, query->querycmd, ident,
+ silc_server_query_resolve_reply, query))
+ query->queries_left++;
+ break;
+ }
+ }
+
+ /* Mark the entry as being resolved */
+ client_entry->data.status |= SILC_IDLIST_STATUS_RESOLVING;
+ client_entry->data.status &= ~SILC_IDLIST_STATUS_RESOLVED;
+ client_entry->resolve_cmd_ident = ident;
+ client_entry->updated = time(NULL);
+
+ /* Save the queried ID, which we will reprocess after we get this and
+ all other queries back. */
+ query->queries = silc_realloc(query->queries, sizeof(*query->queries) *
+ (query->queries_count + 1));
+ if (query->queries) {
+ i = query->queries_count;
+ query->queries[i].id = silc_id_dup(client_entry->id, SILC_ID_CLIENT);
+ query->queries[i].id_type = SILC_ID_CLIENT;
+ query->queries[i].ident = ident;
+ query->queries_count++;
+ }
+}
+
+/* Reply callback called after one resolving has been completed. If
+ all resolvings has been received then we will continue with sending
+ the command reply to the original sender of the query. */
+
+void silc_server_query_resolve_reply(void *context, void *reply)
+{
+ SilcServerQuery query = context;
+ SilcServer server = query->cmd->server;
+ SilcServerCommandReplyContext cmdr = reply;
+ SilcUInt16 ident = cmdr->ident;
+ SilcStatus error = SILC_STATUS_OK;
+ SilcServerQueryID id = NULL;
+ SilcClientEntry client_entry;
+ int i;
+
+ /* One less query left */
+ query->queries_left--;
+
+ silc_command_get_status(cmdr->payload, NULL, &error);
+ SILC_LOG_DEBUG(("Received reply to resolving (%d left) (status=%d)",
+ query->queries_left, error));
+
+ /* If no error then skip to other stuff */
+ if (error == SILC_STATUS_OK)
+ goto out;
+
+ /* Error occurred during resolving */
+
+ /* Find the resolved client ID */
+ for (i = 0; i < query->queries_count; i++) {
+ if (query->queries[i].ident != ident)
+ continue;
+
+ id = &query->queries[i];
+
+ if (error == SILC_STATUS_ERR_TIMEDOUT) {
+
+ /* If timeout occurred for local entry when resolving attributes
+ mark that this client doesn't support attributes in WHOIS. This
+ assures we won't send the request again to the client. */
+ if (query->querycmd == SILC_COMMAND_WHOIS && query->attrs) {
+ client_entry = silc_idlist_find_client_by_id(server->local_list,
+ id->id, TRUE, NULL);
+ SILC_LOG_DEBUG(("Client %s does not support Requested Attributes",
+ silc_id_render(id->id, SILC_ID_CLIENT)));
+ if (client_entry && SILC_IS_LOCAL(client_entry)) {
+ client_entry->data.status |= SILC_IDLIST_STATUS_NOATTR;
+ client_entry->data.status &= ~SILC_IDLIST_STATUS_RESOLVING;
+ continue;
+ }
+ }
+
+ /* Remove the RESOLVING status from the client entry */
+ if (query->querycmd != SILC_COMMAND_WHOWAS) {
+ client_entry = silc_idlist_find_client_by_id(server->local_list,
+ id->id, TRUE, NULL);
+ if (!client_entry)
+ client_entry = silc_idlist_find_client_by_id(server->global_list,
+ id->id, TRUE, NULL);
+ if (client_entry)
+ client_entry->data.status &= ~SILC_IDLIST_STATUS_RESOLVING;
+ }
+ }
+ }
+
+ out:
+
+ /* If there are queries left then wait for them */
+ if (query->queries_left)
+ return;
+
+ SILC_LOG_DEBUG(("Reprocess the query"));
+
+ /* If the original command caller has gone away, just stop. */
+ if (!silc_packet_stream_is_valid(query->cmd->sock)) {
+ SILC_LOG_DEBUG(("Original command caller vanished"));
+ silc_server_query_free(query);
+ return;
+ }
+
+ /* We have received all queries. Now re-search all information required
+ to complete this query. Reason we cannot save the values found in
+ the first search is that SilcClientEntry, SilcServerEntry and
+ SilcChannelEntry pointers may become invalid while we were waiting
+ for these resolvings. */
+ silc_server_query_process(server, query, FALSE);
+}
+
+/* Send the reply to the original query. If arguments are NULL then this
+ sends only the errors that has occurred during the processing of the
+ query. This sends the errors always after sending all the found
+ information. The query is over after this function returns and the
+ `query' will become invalid. This is called only after all informations
+ has been resolved. This means that if something is not found or is
+ incomplete in this function we were unable to resolve the information
+ or it does not exist at all. */
+
+void silc_server_query_send_reply(SilcServer server,
+ SilcServerQuery query,
+ SilcClientEntry *clients,
+ SilcUInt32 clients_count,
+ SilcServerEntry *servers,
+ SilcUInt32 servers_count,
+ SilcChannelEntry *channels,
+ SilcUInt32 channels_count)
+{
+ SilcServerCommandContext cmd = query->cmd;
+ SilcIDListData idata = silc_packet_get_context(cmd->sock);
+ SilcUInt16 ident = silc_command_get_ident(cmd->payload);
+ SilcStatus status;
+ unsigned char *tmp;
+ char *tmp2;
+ SilcUInt32 len;
+ SilcBuffer idp;
+ int i, k, valid_count;
+ char nh[384], uh[384];
+ SilcBool sent_reply = FALSE;
+
+ SILC_LOG_DEBUG(("Sending reply to query"));
+ SILC_LOG_DEBUG(("Sending %d clients", clients_count));
+ SILC_LOG_DEBUG(("Sending %d servers", servers_count));
+ SILC_LOG_DEBUG(("Sending %d channels", channels_count));
+ SILC_LOG_DEBUG(("Sending %d errors", query->errors_count));
+
+ status = SILC_STATUS_OK;
+
+ /* Send clients */
+ if (clients_count) {
+ SilcClientEntry entry;
+ SilcPacketStream hsock;
+
+ /* Mark all invalid entries */
+ for (i = 0, valid_count = 0; i < clients_count; i++) {
+ entry = clients[i];
+ if (!entry)
+ continue;
+
+ switch (query->querycmd) {
+ case SILC_COMMAND_WHOIS:
+ if (!entry->nickname || !entry->username || !entry->userinfo ||
+ !(entry->data.status & SILC_IDLIST_STATUS_REGISTERED)) {
+ /* When querying by ID, every "unfound" entry must cause error */
+ if (query->ids)
+ silc_server_query_add_error_id(server, query,
+ SILC_STATUS_ERR_TIMEDOUT,
+ entry->id, SILC_ID_CLIENT);
+ clients[i] = NULL;
+ continue;
+ }
+ break;
+
+ case SILC_COMMAND_IDENTIFY:
+ if (!entry->nickname ||
+ !(entry->data.status & SILC_IDLIST_STATUS_REGISTERED)) {
+ /* When querying by ID, every "unfound" entry must cause error */
+ if (query->ids)
+ silc_server_query_add_error_id(server, query,
+ SILC_STATUS_ERR_TIMEDOUT,
+ entry->id, SILC_ID_CLIENT);
+ clients[i] = NULL;
+ continue;
+ }
+ break;
+
+ case SILC_COMMAND_WHOWAS:
+ if (!entry->nickname || !entry->username ||
+ entry->data.status & SILC_IDLIST_STATUS_REGISTERED) {
+ clients[i] = NULL;
+ continue;
+ }
+ break;
+ }
+ valid_count++;
+ }
+
+ /* Start processing found clients */
+ status = SILC_STATUS_OK;
+ if (valid_count > 1)
+ status = SILC_STATUS_LIST_START;
+
+ /* Now do the sending of valid entries */
+ k = 0;
+ for (i = 0; i < clients_count && valid_count; i++) {
+ entry = clients[i];
+ if (!entry)
+ continue;
+
+ if (k >= 1)
+ status = SILC_STATUS_LIST_ITEM;
+ if (valid_count > 1 && k == valid_count - 1
+ && !servers_count && !channels_count && !query->errors_count)
+ status = SILC_STATUS_LIST_END;
+ if (query->reply_count && k - 1 == query->reply_count)
+ status = SILC_STATUS_LIST_END;
+
+ SILC_LOG_DEBUG(("%s: client %s",
+ (status == SILC_STATUS_OK ? " OK" :
+ status == SILC_STATUS_LIST_START ? "START" :
+ status == SILC_STATUS_LIST_ITEM ? " ITEM" :
+ status == SILC_STATUS_LIST_END ? " END" :
+ " : "), entry->nickname));
+
+ idp = silc_id_payload_encode(entry->id, SILC_ID_CLIENT);
+ memset(nh, 0, sizeof(nh));
+
+ silc_strncat(nh, sizeof(nh), entry->nickname, strlen(entry->nickname));
+ if (!strchr(entry->nickname, '@')) {
+ silc_strncat(nh, sizeof(nh), "@", 1);
+ if (entry->servername) {
+ silc_strncat(nh, sizeof(nh), entry->servername,
+ strlen(entry->servername));
+ } else {
+ len = entry->router ? strlen(entry->router->server_name) :
+ strlen(server->server_name);
+ silc_strncat(nh, sizeof(nh), entry->router ?
+ entry->router->server_name :
+ server->server_name, len);
+ }
+ }
+
+ switch (query->querycmd) {
+
+ case SILC_COMMAND_WHOIS:
+ {
+ unsigned char idle[4], mode[4];
+ unsigned char *fingerprint, fempty[20], *attrs = NULL;
+ SilcBuffer channels, umode_list = NULL, tmpattrs = NULL;
+
+ memset(fempty, 0, sizeof(fempty));
+ memset(idle, 0, sizeof(idle));
+ memset(uh, 0, sizeof(uh));
+
+ silc_strncat(uh, sizeof(uh), entry->username,
+ strlen(entry->username));
+ if (!strchr(entry->username, '@') && entry->connection) {
+ hsock = entry->connection;
+ silc_strncat(uh, sizeof(uh), "@", 1);
+ silc_socket_stream_get_info(silc_packet_stream_get_stream(hsock),
+ NULL, (const char **)&tmp2, NULL, NULL);
+ silc_strncat(uh, sizeof(uh), tmp2, strlen(tmp2));
+ }
+
+ if (idata->conn_type == SILC_CONN_CLIENT)
+ channels =
+ silc_server_get_client_channel_list(server, entry, FALSE,
+ FALSE, &umode_list);
+ else
+ channels =
+ silc_server_get_client_channel_list(server, entry, TRUE,
+ TRUE, &umode_list);
+
+ if (memcmp(entry->data.fingerprint, fempty, sizeof(fempty)))
+ fingerprint = entry->data.fingerprint;
+ else
+ fingerprint = NULL;
+
+ SILC_PUT32_MSB(entry->mode, mode);
+ if (entry->connection)
+ SILC_PUT32_MSB((time(NULL) - entry->data.last_receive), idle);
+
+ /* If Requested Attribute were present, and we do not have the
+ attributes we will reply to them on behalf of the client. */
+ len = 0;
+ if (query->attrs) {
+ if (!entry->attrs && SILC_IS_LOCAL(entry)) {
+ tmpattrs = silc_server_query_reply_attrs(server, query, entry);
+ entry->attrs = silc_buffer_steal(tmpattrs, &len);
+ entry->attrs_len = len;
+ silc_buffer_free(tmpattrs);
+ }
+ attrs = entry->attrs;
+ len = entry->attrs_len;
+ }
+
+ /* Send command reply */
+ silc_server_send_command_reply(server, cmd->sock, query->querycmd,
+ status, 0, ident, 10,
+ 2, idp->data, silc_buffer_len(idp),
+ 3, nh, strlen(nh),
+ 4, uh, strlen(uh),
+ 5, entry->userinfo,
+ strlen(entry->userinfo),
+ 6, channels ? channels->data : NULL,
+ channels ? silc_buffer_len(channels)
+ : 0,
+ 7, mode, 4,
+ 8, idle, 4,
+ 9, fingerprint,
+ fingerprint ? 20 : 0,
+ 10, umode_list ? umode_list->data :
+ NULL, umode_list ?
+ silc_buffer_len(umode_list) :
+ 0, 11, attrs, len);
+
+ sent_reply = TRUE;
+
+ /* For now we always delete Requested Attributes, unless the client
+ is detached, in which case we don't want to reconstruct the
+ same data everytime */
+ if (!(entry->mode & SILC_UMODE_DETACHED) &&
+ !(entry->data.status & SILC_IDLIST_STATUS_NOATTR)) {
+ silc_free(entry->attrs);
+ entry->attrs = NULL;
+ }
+
+ if (channels)
+ silc_buffer_free(channels);
+ if (umode_list) {
+ silc_buffer_free(umode_list);
+ umode_list = NULL;
+ }
+ }
+ break;
+
+ case SILC_COMMAND_IDENTIFY:
+ if (!entry->username) {
+ silc_server_send_command_reply(server, cmd->sock, query->querycmd,
+ status, 0, ident, 2,
+ 2, idp->data, silc_buffer_len(idp),
+ 3, nh, strlen(nh));
+ sent_reply = TRUE;
+ } else {
+ memset(uh, 0, sizeof(uh));
+ silc_strncat(uh, sizeof(uh), entry->username,
+ strlen(entry->username));
+ if (!strchr(entry->username, '@') && entry->connection) {
+ hsock = entry->connection;
+ silc_strncat(uh, sizeof(uh), "@", 1);
+ silc_socket_stream_get_info(silc_packet_stream_get_stream(hsock),
+ NULL, (const char **)&tmp2,
+ NULL, NULL);
+ silc_strncat(uh, sizeof(uh), tmp2, strlen(tmp2));
+ }
+
+ silc_server_send_command_reply(server, cmd->sock, query->querycmd,
+ status, 0, ident, 3,
+ 2, idp->data, silc_buffer_len(idp),
+ 3, nh, strlen(nh),
+ 4, uh, strlen(uh));
+ sent_reply = TRUE;
+ }
+ break;
+
+ case SILC_COMMAND_WHOWAS:
+ memset(uh, 0, sizeof(uh));
+ silc_strncat(uh, sizeof(uh), entry->username, strlen(entry->username));
+ if (!strchr(entry->username, '@'))
+ silc_strncat(uh, sizeof(uh), "@-private-", 10);
+
+ /* Send command reply */
+ silc_server_send_command_reply(server, cmd->sock, query->querycmd,
+ status, 0, ident, 4,
+ 2, idp->data, silc_buffer_len(idp),
+ 3, nh, strlen(nh),
+ 4, uh, strlen(uh),
+ 5, entry->userinfo,
+ entry->userinfo ?
+ strlen(entry->userinfo) : 0);
+ sent_reply = TRUE;
+ break;
+ }
+
+ silc_buffer_free(idp);
+
+ if (status == SILC_STATUS_LIST_END)
+ break;
+ k++;
+ }
+
+ if (k == 0) {
+ /* Not one valid entry was found, send error. If nickname was used
+ in query send error based on that, otherwise the query->errors
+ already includes proper errors. */
+ if (query->nickname[0] || (!query->ids && query->attrs))
+ silc_server_query_add_error(server, query, 1, 1,
+ SILC_STATUS_ERR_NO_SUCH_NICK);
+
+ /* Make sure some error is sent */
+ if (!query->errors_count && !servers_count && !channels_count)
+ silc_server_query_add_error(server, query, 2, 0,
+ SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
+ }
+ }
+
+ /* Send servers */
+ if (query->querycmd == SILC_COMMAND_IDENTIFY && servers_count) {
+ SilcServerEntry entry;
+
+ if (status == SILC_STATUS_OK && servers_count > 1)
+ status = SILC_STATUS_LIST_START;
+
+ k = 0;
+ for (i = 0; i < servers_count; i++) {
+ entry = servers[i];
+
+ if (k >= 1)
+ status = SILC_STATUS_LIST_ITEM;
+ if (servers_count == 1 && status != SILC_STATUS_OK && !channels_count &&
+ !query->errors_count)
+ status = SILC_STATUS_LIST_END;
+ if (servers_count > 1 && k == servers_count - 1 && !channels_count &&
+ !query->errors_count)
+ status = SILC_STATUS_LIST_END;
+ if (query->reply_count && k - 1 == query->reply_count)
+ status = SILC_STATUS_LIST_END;
+
+ SILC_LOG_DEBUG(("%s: server %s",
+ (status == SILC_STATUS_OK ? " OK" :
+ status == SILC_STATUS_LIST_START ? "START" :
+ status == SILC_STATUS_LIST_ITEM ? " ITEM" :
+ status == SILC_STATUS_LIST_END ? " END" :
+ " : "),
+ entry->server_name ? entry->server_name : ""));
+
+ /* Send command reply */
+ idp = silc_id_payload_encode(entry->id, SILC_ID_SERVER);
+ silc_server_send_command_reply(server, cmd->sock, SILC_COMMAND_IDENTIFY,
+ status, 0, ident, 2,
+ 2, idp->data, silc_buffer_len(idp),
+ 3, entry->server_name,
+ entry->server_name ?
+ strlen(entry->server_name) : 0);
+ silc_buffer_free(idp);
+ sent_reply = TRUE;
+
+ if (status == SILC_STATUS_LIST_END)
+ break;
+ k++;
+ }
+ }
+
+ /* Send channels */
+ if (query->querycmd == SILC_COMMAND_IDENTIFY && channels_count) {
+ SilcChannelEntry entry;
+
+ if (status == SILC_STATUS_OK && channels_count > 1)
+ status = SILC_STATUS_LIST_START;
+
+ k = 0;
+ for (i = 0; i < channels_count; i++) {
+ entry = channels[i];
+
+ if (k >= 1)
+ status = SILC_STATUS_LIST_ITEM;
+ if (channels_count == 1 && status != SILC_STATUS_OK &&
+ !query->errors_count)
+ status = SILC_STATUS_LIST_END;
+ if (channels_count > 1 && k == channels_count - 1 &&
+ !query->errors_count)
+ status = SILC_STATUS_LIST_END;
+ if (query->reply_count && k - 1 == query->reply_count)
+ status = SILC_STATUS_LIST_END;
+
+ SILC_LOG_DEBUG(("%s: channel %s",
+ (status == SILC_STATUS_OK ? " OK" :
+ status == SILC_STATUS_LIST_START ? "START" :
+ status == SILC_STATUS_LIST_ITEM ? " ITEM" :
+ status == SILC_STATUS_LIST_END ? " END" :
+ " : "),
+ entry->channel_name ? entry->channel_name : ""));
+
+ /* Send command reply */
+ idp = silc_id_payload_encode(entry->id, SILC_ID_CHANNEL);
+ silc_server_send_command_reply(server, cmd->sock, SILC_COMMAND_IDENTIFY,
+ status, 0, ident, 2,
+ 2, idp->data, silc_buffer_len(idp),
+ 3, entry->channel_name,
+ entry->channel_name ?
+ strlen(entry->channel_name) : 0);
+ silc_buffer_free(idp);
+ sent_reply = TRUE;
+
+ if (status == SILC_STATUS_LIST_END)
+ break;
+ k++;
+ }
+ }
+
+ /* Send errors */
+ if (query->errors_count) {
+ int type;
+
+ if (status == SILC_STATUS_OK && query->errors_count > 1)
+ status = SILC_STATUS_LIST_START;
+
+ k = 0;
+ for (i = 0; i < query->errors_count; i++) {
+ idp = NULL;
+
+ /* Take error argument */
+ if (query->errors[i].type == 1) {
+ /* Take from sent arguments */
+ len = 0;
+ tmp = silc_argument_get_arg_type(cmd->args,
+ query->errors[i].index, &len);
+ type = 2;
+ } else if (query->errors[i].type == 2) {
+ /* No argument */
+ len = 0;
+ tmp = NULL;
+ type = 0;
+ } else if (!query->errors[i].id) {
+ /* Take from query->ids */
+ idp =
+ silc_id_payload_encode(query->ids[query->errors[i].index].id,
+ query->ids[query->errors[k].index].id_type);
+ tmp = idp->data;
+ len = silc_buffer_len(idp);
+ type = 2;
+ } else {
+ /* Take added ID. */
+ idp = silc_id_payload_encode(query->errors[i].id,
+ query->errors[k].id_type);
+ tmp = idp->data;
+ len = silc_buffer_len(idp);
+ type = 2;
+ }
+
+ if (k >= 1)
+ status = SILC_STATUS_LIST_ITEM;
+ if (query->errors_count == 1 && status != SILC_STATUS_OK)
+ status = SILC_STATUS_LIST_END;
+ if (query->errors_count > 1 && k == query->errors_count - 1)
+ status = SILC_STATUS_LIST_END;
+ if (query->reply_count && k - 1 == query->reply_count)
+ status = SILC_STATUS_LIST_END;
+
+ SILC_LOG_DEBUG(("%s: ERROR: %s (%d)",
+ (status == SILC_STATUS_OK ? " OK" :
+ status == SILC_STATUS_LIST_START ? "START" :
+ status == SILC_STATUS_LIST_ITEM ? " ITEM" :
+ status == SILC_STATUS_LIST_END ? " END" :
+ " : "),
+ silc_get_status_message(query->errors[i].error),
+ query->errors[i].error));
+
+#if 1 /* XXX Backwards compatibility. Remove in 1.0. */
+ if (query->errors[i].error == SILC_STATUS_ERR_NO_SUCH_NICK)
+ /* Send error */
+ silc_server_send_command_reply(server, cmd->sock, query->querycmd,
+ (status == SILC_STATUS_OK ?
+ query->errors[i].error : status),
+ (status == SILC_STATUS_OK ?
+ 0 : query->errors[i].error), ident, 2,
+ type, tmp, len,
+ 3, tmp, len);
+ else
+#endif
+ /* Send error */
+ silc_server_send_command_reply(server, cmd->sock, query->querycmd,
+ (status == SILC_STATUS_OK ?
+ query->errors[i].error : status),
+ (status == SILC_STATUS_OK ?
+ 0 : query->errors[i].error), ident, 1,
+ type, tmp, len);
+
+ silc_buffer_free(idp);
+ sent_reply = TRUE;
+
+ if (status == SILC_STATUS_LIST_END)
+ break;
+ k++;
+ }
+ }
+
+ if (!sent_reply)
+ SILC_LOG_ERROR(("BUG: Query did not send anything"));
+
+ /* Cleanup */
+ silc_server_query_free(query);
+}
+
+/* This routine is used to reply to Requested Attributes in WHOIS on behalf
+ of the client since we were unable to resolve them from the client.
+ Either client does not support Requested Attributes or isn't replying
+ to them like it should. */
+
+SilcBuffer silc_server_query_reply_attrs(SilcServer server,
+ SilcServerQuery query,
+ SilcClientEntry client_entry)
+{
+ SilcBuffer buffer = NULL;
+ SilcAttribute attribute;
+ SilcAttributePayload attr;
+ SilcAttributeObjPk pk;
+ SilcAttributeObjService service;
+ unsigned char *tmp;
+ unsigned char sign[2048 + 1];
+ SilcUInt32 sign_len;
+
+ SILC_LOG_DEBUG(("Constructing Requested Attributes"));
+
+ /* Go through all requested attributes */
+ silc_dlist_start(query->attrs);
+ while ((attr = silc_dlist_get(query->attrs)) != SILC_LIST_END) {
+ attribute = silc_attribute_get_attribute(attr);
+ switch (attribute) {
+
+ case SILC_ATTRIBUTE_SERVICE:
+ /* Put SERVICE. Put only SILC service. */
+ memset(&service, 0, sizeof(service));
+ service.port = (server->config->server_info->primary ?
+ server->config->server_info->primary->port : SILC_PORT);
+ silc_strncat(service.address, sizeof(service.address),
+ server->server_name, strlen(server->server_name));
+ service.status = !(client_entry->mode & SILC_UMODE_DETACHED);
+ if (client_entry->connection)
+ service.idle = time(NULL) - client_entry->data.last_receive;
+ buffer = silc_attribute_payload_encode(buffer, attribute,
+ SILC_ATTRIBUTE_FLAG_VALID,
+ &service, sizeof(service));
+ if (!buffer)
+ return NULL;
+ break;
+
+ case SILC_ATTRIBUTE_STATUS_MOOD:
+ /* Put STATUS_MOOD */
+ buffer = silc_attribute_payload_encode(buffer, attribute,
+ SILC_ATTRIBUTE_FLAG_VALID,
+ (void *)
+ SILC_ATTRIBUTE_MOOD_NORMAL,
+ sizeof(SilcUInt32));
+ if (!buffer)
+ return NULL;
+ break;
+
+ case SILC_ATTRIBUTE_STATUS_FREETEXT:
+ /* Put STATUS_FREETEXT. We just tell in the message that we are
+ replying on behalf of the client. */
+ tmp =
+ "This information was provided by the server on behalf of the user";
+ buffer = silc_attribute_payload_encode(buffer, attribute,
+ SILC_ATTRIBUTE_FLAG_VALID,
+ tmp, strlen(tmp));
+ if (!buffer)
+ return NULL;
+ break;
+
+ case SILC_ATTRIBUTE_PREFERRED_CONTACT:
+ /* Put PREFERRED_CONTACT */
+ buffer = silc_attribute_payload_encode(buffer, attribute,
+ SILC_ATTRIBUTE_FLAG_VALID,
+ (void *)
+ SILC_ATTRIBUTE_CONTACT_CHAT,
+ sizeof(SilcUInt32));
+ if (!buffer)
+ return NULL;
+ break;
+
+ case SILC_ATTRIBUTE_USER_PUBLIC_KEY:
+ /* Put USER_PUBLIC_KEY */
+ if (client_entry->data.public_key) {
+ pk.type = "silc-rsa";
+ pk.data = silc_pkcs_public_key_encode(client_entry->data.public_key,
+ &pk.data_len);
+ buffer = silc_attribute_payload_encode(buffer, attribute, pk.data ?
+ SILC_ATTRIBUTE_FLAG_VALID :
+ SILC_ATTRIBUTE_FLAG_INVALID,
+ &pk, sizeof(pk));
+ silc_free(pk.data);
+ if (!buffer)
+ return NULL;
+ break;
+ }
+
+ /* No public key available */
+ buffer = silc_attribute_payload_encode(buffer, attribute,
+ SILC_ATTRIBUTE_FLAG_INVALID,
+ NULL, 0);
+ if (!buffer)
+ return NULL;
+ break;
+
+ default:
+ /* Ignore SERVER_PUBLIC_KEY since we are going to put it anyway later */
+ if (attribute == SILC_ATTRIBUTE_SERVER_PUBLIC_KEY ||
+ attribute == SILC_ATTRIBUTE_SERVER_DIGITAL_SIGNATURE)
+ break;
+
+ /* For other attributes we cannot reply so mark it invalid */
+ buffer = silc_attribute_payload_encode(buffer, attribute,
+ SILC_ATTRIBUTE_FLAG_INVALID,
+ NULL, 0);
+ if (!buffer)
+ return NULL;
+ break;
+ }
+ }
+
+ /* Always put our public key. This assures that we send at least
+ something valid back always. */
+ pk.type = "silc-rsa";
+ pk.data = silc_pkcs_public_key_encode(server->public_key, &pk.data_len);
+ buffer = silc_attribute_payload_encode(buffer,
+ SILC_ATTRIBUTE_SERVER_PUBLIC_KEY,
+ pk.data ? SILC_ATTRIBUTE_FLAG_VALID :
+ SILC_ATTRIBUTE_FLAG_INVALID,
+ &pk, sizeof(pk));
+ silc_free(pk.data);
+ if (!buffer)
+ return NULL;
+
+ /* Finally compute the digital signature of all the data we provided
+ as an indication that we provided rightfull information, and this
+ also authenticates our public key. */
+ if (silc_pkcs_private_key_get_len(server->private_key) / 8 <=
+ sizeof(sign) -1 &&
+ silc_pkcs_sign(server->private_key, buffer->data,
+ silc_buffer_len(buffer), sign, sizeof(sign), &sign_len,
+ TRUE, server->sha1hash)) {
+ pk.type = NULL;
+ pk.data = sign;
+ pk.data_len = sign_len;
+ buffer =
+ silc_attribute_payload_encode(buffer,
+ SILC_ATTRIBUTE_SERVER_DIGITAL_SIGNATURE,
+ SILC_ATTRIBUTE_FLAG_VALID,
+ &pk, sizeof(pk));
+ }
+ if (!buffer)
+ return NULL;
+
+ return buffer;
}
/* Find client by the Client ID indicated by the `client_id', and if not
SilcClientEntry silc_server_query_client(SilcServer server,
const SilcClientID *client_id,
- bool always_resolve,
- bool *resolved)
+ SilcBool always_resolve,
+ SilcBool *resolved)
{
SilcClientEntry client;
+ SILC_LOG_DEBUG(("Resolving client by client ID"));
+
if (resolved)
*resolved = FALSE;
always_resolve) {
SilcBuffer buffer, idp;
+ /* Statistics */
+ server->stat.commands_sent++;
+
if (client) {
client->data.status |= SILC_IDLIST_STATUS_RESOLVING;
client->data.status &= ~SILC_IDLIST_STATUS_RESOLVED;
idp = silc_id_payload_encode(client_id, SILC_ID_CLIENT);
buffer = silc_command_payload_encode_va(SILC_COMMAND_WHOIS,
server->cmd_ident, 1,
- 4, idp->data, idp->len);
+ 4, idp->data,
+ silc_buffer_len(idp));
silc_server_packet_send(server, client ? client->router->connection :
SILC_PRIMARY_ROUTE(server),
SILC_PACKET_COMMAND, 0,
- buffer->data, buffer->len, FALSE);
+ buffer->data, silc_buffer_len(buffer));
silc_buffer_free(idp);
silc_buffer_free(buffer);
projects / silc.git / blobdiff