static void
control_connection_reset_stats(ControlConnection *cc, GString *command, gpointer user_data)
{
GString *result = g_string_new("OK The statistics of syslog-ng have been reset to 0.");
stats_reset_counters();
control_connection_send_reply(cc, result);
}
static void
control_connection_send_stats(ControlConnection *cc, GString *command, gpointer user_data)
{
gchar *stats = stats_generate_csv();
GString *result = g_string_new(stats);
g_free(stats);
control_connection_send_reply(cc, result);
}
static void
control_connection_message_log(ControlConnection *self, GString *command)
{
gchar **cmds = g_strsplit(command->str, " ", 3);
gboolean on;
int *type = NULL;
if (!cmds[1])
{
control_connection_send_reply(self, "Invalid arguments received, expected at least one argument", FALSE);
goto exit;
}
if (g_str_equal(cmds[1], "DEBUG"))
type = &debug_flag;
else if (g_str_equal(cmds[1], "VERBOSE"))
type = &verbose_flag;
else if (g_str_equal(cmds[1], "TRACE"))
type = &trace_flag;
if (type)
{
if (cmds[2])
{
on = g_str_equal(cmds[2], "ON");
if (*type != on)
{
msg_info("Verbosity changed", evt_tag_str("type", cmds[1]), evt_tag_int("on", on), NULL);
*type = on;
}
control_connection_send_reply(self, "OK", FALSE);
}
else
{
control_connection_send_reply(self, g_strdup_printf("%s=%d", cmds[1], *type), TRUE);
}
}
else
control_connection_send_reply(self, "Invalid arguments received", FALSE);
exit:
g_strfreev(cmds);
}
static void
control_connection_send_stats(ControlConnection *self, GString *command)
{
control_connection_send_reply(self, stats_generate_csv(), TRUE);
}
static void
control_connection_reload(ControlConnection *self, GString *command)
{
main_loop_reload_config_initiate();
control_connection_send_reply(self, "OK Config reload initiated", FALSE);
}
static void
control_connection_io_input(void *s)
{
ControlConnection *self = (ControlConnection *) s;
GString *command = NULL;
GString *reply = NULL;
gchar *nl;
gint rc;
gint orig_len;
GList *iter;
if (self->input_buffer->len > MAX_CONTROL_LINE_LENGTH)
{
/* too much data in input, drop the connection */
msg_error("Too much data in the control socket input buffer",
NULL);
control_connection_stop_watches(self);
control_connection_free(self);
return;
}
orig_len = self->input_buffer->len;
/* NOTE: plus one for the terminating NUL */
g_string_set_size(self->input_buffer, self->input_buffer->len + 128 + 1);
rc = self->read(self, self->input_buffer->str + orig_len, 128);
if (rc < 0)
{
if (errno != EAGAIN)
{
msg_error("Error reading command on control channel, closing control channel",
evt_tag_errno("error", errno),
NULL);
goto destroy_connection;
}
/* EAGAIN, should try again when data comes */
control_connection_update_watches(self);
return;
}
else if (rc == 0)
{
msg_debug("EOF on control channel, closing connection",
NULL);
goto destroy_connection;
}
else
{
self->input_buffer->len = orig_len + rc;
self->input_buffer->str[self->input_buffer->len] = 0;
}
/* here we have finished reading the input, check if there's a newline somewhere */
nl = strchr(self->input_buffer->str, '\n');
if (nl)
{
command = g_string_sized_new(128);
/* command doesn't contain NL */
g_string_assign_len(command, self->input_buffer->str, nl - self->input_buffer->str);
/* strip NL */
/*g_string_erase(self->input_buffer, 0, command->len + 1);*/
g_string_truncate(self->input_buffer, 0);
}
else
{
/* no EOL in the input buffer, wait for more data */
control_connection_update_watches(self);
return;
}
for (iter = self->server->control_commands; iter != NULL; iter = iter->next)
{
if (strncmp(((ControlCommand*)iter->data)->command_name, command->str, strlen(((ControlCommand*)iter->data)->command_name)) == 0)
{
reply = ((ControlCommand*)iter->data)->func(command);
control_connection_send_reply(self, reply);
break;
}
}
if (iter == NULL)
{
msg_error("Unknown command read on control channel, closing control channel",
evt_tag_str("command", command->str), NULL);
g_string_free(command, TRUE);
goto destroy_connection;
}
control_connection_update_watches(self);
g_string_free(command, TRUE);
return;
destroy_connection:
control_connection_stop_watches(self);
control_connection_free(self);
}