/**
* Handler for DELETE message from client, creates
* new identity.
*
* @param cls unused
* @param client who sent the message
* @param message the message received
*/
static void
handle_delete_message (void *cls,
const struct DeleteMessage *dm)
{
struct Ego *ego;
const char *name;
char *fn;
struct GNUNET_SERVICE_Client *client = cls;
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Received DELETE message from client\n");
name = (const char *) &dm[1];
for (ego = ego_head; NULL != ego; ego = ego->next)
{
if (0 == strcmp (ego->identifier,
name))
{
GNUNET_CONTAINER_DLL_remove (ego_head,
ego_tail,
ego);
GNUNET_CONFIGURATION_iterate_sections (subsystem_cfg,
&handle_ego_delete,
ego->identifier);
if (GNUNET_OK !=
GNUNET_CONFIGURATION_write (subsystem_cfg,
subsystem_cfg_file))
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
_("Failed to write subsystem default identifier map to `%s'.\n"),
subsystem_cfg_file);
fn = get_ego_filename (ego);
if (0 != UNLINK (fn))
GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING, "unlink", fn);
GNUNET_free (fn);
GNUNET_free (ego->identifier);
ego->identifier = NULL;
notify_listeners (ego);
GNUNET_free (ego->pk);
GNUNET_free (ego);
send_result_code (client, 0, NULL);
GNUNET_SERVICE_client_continue (client);
return;
}
}
send_result_code (client, 1, gettext_noop ("no matching ego found"));
GNUNET_SERVICE_client_continue (client);
}
/**
* Handler for DELETE message from client, creates
* new identity.
*
* @param cls unused
* @param client who sent the message
* @param message the message received
*/
static void
handle_delete_message (void *cls, struct GNUNET_SERVER_Client *client,
const struct GNUNET_MessageHeader *message)
{
const struct GNUNET_IDENTITY_DeleteMessage *dm;
uint16_t size;
uint16_t name_len;
struct Ego *ego;
const char *name;
char *fn;
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Received DELETE message from client\n");
size = ntohs (message->size);
if (size <= sizeof (struct GNUNET_IDENTITY_DeleteMessage))
{
GNUNET_break (0);
GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
return;
}
dm = (const struct GNUNET_IDENTITY_DeleteMessage *) message;
name = (const char *) &dm[1];
name_len = ntohs (dm->name_len);
if ( (name_len + sizeof (struct GNUNET_IDENTITY_DeleteMessage) != size) ||
(0 != ntohs (dm->reserved)) ||
('\0' != name[name_len - 1]) )
{
GNUNET_break (0);
GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
return;
}
for (ego = ego_head; NULL != ego; ego = ego->next)
{
if (0 == strcmp (ego->identifier,
name))
{
GNUNET_CONTAINER_DLL_remove (ego_head,
ego_tail,
ego);
GNUNET_CONFIGURATION_iterate_sections (subsystem_cfg,
&handle_ego_delete,
ego->identifier);
if (GNUNET_OK !=
GNUNET_CONFIGURATION_write (subsystem_cfg,
subsystem_cfg_file))
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
_("Failed to write subsystem default identifier map to `%s'.\n"),
subsystem_cfg_file);
fn = get_ego_filename (ego);
if (0 != UNLINK (fn))
GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING, "unlink", fn);
GNUNET_free (fn);
GNUNET_free (ego->identifier);
ego->identifier = NULL;
notify_listeners (ego);
GNUNET_free (ego->pk);
GNUNET_free (ego);
send_result_code (client, 0, NULL);
GNUNET_SERVER_receive_done (client, GNUNET_OK);
return;
}
}
send_result_code (client, 1, gettext_noop ("no matching ego found"));
GNUNET_SERVER_receive_done (client, GNUNET_OK);
}
/**
* Handler for RENAME message from client, creates
* new identity.
*
* @param cls unused
* @param client who sent the message
* @param message the message received
*/
static void
handle_rename_message (void *cls, struct GNUNET_SERVER_Client *client,
const struct GNUNET_MessageHeader *message)
{
const struct GNUNET_IDENTITY_RenameMessage *rm;
uint16_t size;
uint16_t old_name_len;
uint16_t new_name_len;
struct Ego *ego;
const char *old_name;
const char *new_name;
struct RenameContext rename_ctx;
char *fn_old;
char *fn_new;
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Received RENAME message from client\n");
size = ntohs (message->size);
if (size <= sizeof (struct GNUNET_IDENTITY_RenameMessage))
{
GNUNET_break (0);
GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
return;
}
rm = (const struct GNUNET_IDENTITY_RenameMessage *) message;
old_name_len = ntohs (rm->old_name_len);
new_name_len = ntohs (rm->new_name_len);
old_name = (const char *) &rm[1];
new_name = &old_name[old_name_len];
if ( (old_name_len + new_name_len + sizeof (struct GNUNET_IDENTITY_RenameMessage) != size) ||
('\0' != old_name[old_name_len - 1]) ||
('\0' != new_name[new_name_len - 1]) )
{
GNUNET_break (0);
GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
return;
}
/* check if new name is already in use */
for (ego = ego_head; NULL != ego; ego = ego->next)
{
if (0 == strcmp (ego->identifier,
new_name))
{
send_result_code (client, 1, gettext_noop ("target name already exists"));
GNUNET_SERVER_receive_done (client, GNUNET_OK);
return;
}
}
/* locate old name and, if found, perform rename */
for (ego = ego_head; NULL != ego; ego = ego->next)
{
if (0 == strcmp (ego->identifier,
old_name))
{
fn_old = get_ego_filename (ego);
GNUNET_free (ego->identifier);
rename_ctx.old_name = old_name;
rename_ctx.new_name = new_name;
GNUNET_CONFIGURATION_iterate_sections (subsystem_cfg,
&handle_ego_rename,
&rename_ctx);
if (GNUNET_OK !=
GNUNET_CONFIGURATION_write (subsystem_cfg,
subsystem_cfg_file))
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
_("Failed to write subsystem default identifier map to `%s'.\n"),
subsystem_cfg_file);
ego->identifier = GNUNET_strdup (new_name);
fn_new = get_ego_filename (ego);
if (0 != RENAME (fn_old, fn_new))
GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING, "rename", fn_old);
GNUNET_free (fn_old);
GNUNET_free (fn_new);
notify_listeners (ego);
send_result_code (client, 0, NULL);
GNUNET_SERVER_receive_done (client, GNUNET_OK);
return;
}
}
/* failed to locate old name */
send_result_code (client, 1, gettext_noop ("no matching ego found"));
GNUNET_SERVER_receive_done (client, GNUNET_OK);
}
/**
* Process arm requests.
*
* @param cls closure
* @param serv the initialized server
* @param c configuration to use
*/
static void
run (void *cls, struct GNUNET_SERVER_Handle *serv,
const struct GNUNET_CONFIGURATION_Handle *c)
{
static const struct GNUNET_SERVER_MessageHandler handlers[] = {
{&handle_start, NULL, GNUNET_MESSAGE_TYPE_ARM_START, 0},
{&handle_stop, NULL, GNUNET_MESSAGE_TYPE_ARM_STOP, 0},
{&handle_shutdown, NULL, GNUNET_MESSAGE_TYPE_ARM_SHUTDOWN,
sizeof (struct GNUNET_MessageHeader)},
{&handle_list, NULL, GNUNET_MESSAGE_TYPE_ARM_LIST,
sizeof (struct GNUNET_MessageHeader)},
{NULL, NULL, 0, 0}
};
char *defaultservices;
const char *pos;
struct ServiceList *sl;
cfg = c;
server = serv;
GNUNET_assert (serv != NULL);
GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL, &shutdown_task,
NULL);
child_death_task =
GNUNET_SCHEDULER_add_read_file (GNUNET_TIME_UNIT_FOREVER_REL,
GNUNET_DISK_pipe_handle (sigpipe,
GNUNET_DISK_PIPE_END_READ),
&maint_child_death, NULL);
if (GNUNET_OK !=
GNUNET_CONFIGURATION_get_value_string (cfg, "ARM", "GLOBAL_PREFIX",
&prefix_command))
prefix_command = GNUNET_strdup ("");
if (GNUNET_OK !=
GNUNET_CONFIGURATION_get_value_string (cfg, "ARM", "GLOBAL_POSTFIX",
&final_option))
final_option = GNUNET_strdup ("");
GNUNET_CONFIGURATION_iterate_sections (cfg, &setup_service, NULL);
/* start default services... */
if (GNUNET_OK ==
GNUNET_CONFIGURATION_get_value_string (cfg, "ARM", "DEFAULTSERVICES",
&defaultservices))
{
GNUNET_log (GNUNET_ERROR_TYPE_INFO,
_("Starting default services `%s'\n"), defaultservices);
if (0 < strlen (defaultservices))
{
for (pos = strtok (defaultservices, " "); NULL != pos;
pos = strtok (NULL, " "))
{
sl = find_service (pos);
if (NULL == sl)
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
_
("Default service `%s' not configured correctly!\n"),
pos);
continue;
}
sl->is_default = GNUNET_YES;
start_process (sl);
}
}
GNUNET_free (defaultservices);
}
else
{
GNUNET_log (GNUNET_ERROR_TYPE_INFO,
_
("No default services configured, GNUnet will not really start right now.\n"));
}
/* process client requests */
GNUNET_SERVER_add_handlers (server, handlers);
}
/**
* Main function that will be run by the scheduler.
*
* @param cls closure
* @param args remaining command-line arguments
* @param cfgfile name of the configuration file used (for saving, can be NULL!)
* @param cfg configuration
*/
static void
run (void *cls, char *const *args, const char *cfgfile,
const struct GNUNET_CONFIGURATION_Handle *mycfg)
{
struct GNUNET_CONFIGURATION_Handle *properties;
char *file;
end_task = GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_UNIT_FOREVER_REL, &shutdown_task, NULL);
cfg = mycfg;
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "sysdaemon starting ... \n");
if (GNUNET_SYSERR ==GNUNET_CONFIGURATION_get_value_filename (mycfg, "sysmon", "CFGFILE", &file))
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Sysmon configuration file not set, exit! \n");
shutdown_now();
ret = 1;
return;
}
properties = GNUNET_CONFIGURATION_create();
if (NULL == properties)
{
GNUNET_break (0);
shutdown_now();
ret = 1;
return;
}
if (GNUNET_SYSERR == GNUNET_CONFIGURATION_load (properties, file))
{
GNUNET_break (0);
GNUNET_CONFIGURATION_destroy (properties);
GNUNET_free (file);
ret = 1;
shutdown_now();
return;
}
GNUNET_free (file);
GNUNET_CONFIGURATION_iterate_sections (properties, &load_property, properties);
GNUNET_CONFIGURATION_destroy (properties);
/* Creating statistics */
stats = GNUNET_STATISTICS_create ("sysmon", mycfg);
if (NULL == stats)
{
GNUNET_break (0);
shutdown_now();
ret = 1;
return;
}
/* load properties */
if (GNUNET_SYSERR == load_default_properties ())
{
GNUNET_break (0);
shutdown_now();
ret = 1;
return;
}
/* run properties */
if (GNUNET_SYSERR == run_properties ())
{
GNUNET_break (0);
shutdown_now();
ret = 1;
return;
}
}
