1551 lines
45 KiB
C
1551 lines
45 KiB
C
/*
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* This file is part of the Owl Positioning System (OwlPS) project.
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* It is subject to the copyright notice and license terms in the
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* COPYRIGHT.t2t file found in the top-level directory of this
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* distribution and at
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* http://code.lm7.fr/p/owlps/source/tree/master/COPYRIGHT.t2t
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* No part of the OwlPS Project, including this file, may be copied,
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* modified, propagated, or distributed except according to the terms
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* contained in the COPYRIGHT.t2t file; the COPYRIGHT.t2t file must be
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* distributed along with this file, either separately or by replacing
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* this notice by the COPYRIGHT.t2t file's contents.
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*
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***********************************************************************
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*
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* This is the main source file of OwlPS Aggregator, the program that
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* aggregates the requests captured by the Listeners in order to present
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* them to the Positioner.
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*/
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#include "owlps-aggregator.h"
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#include <stdlib.h>
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#include <unistd.h>
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#include <inttypes.h>
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#include <string.h>
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#include <errno.h>
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#include <signal.h>
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#include <pthread.h>
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#include <semaphore.h>
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#include <arpa/inet.h>
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#include <confuse.h>
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#include <assert.h>
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char *program_name = NULL ;
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cfg_t *cfg = NULL ; // Configuration structure
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/* Will we dump the configuration?
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* Note that we declare this option as a global variable because
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* it must not appear in Confuse's options (to avoid dumping the
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* dump_configuration option itself).
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*/
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bool dump_configuration = false ;
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request_list *requests = NULL ; // Computed data list
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sem_t lock_requests ; // Semaphore to get access to the requests
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ap_list *token_aps = NULL ; // Token ring of the APs
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uint_fast16_t nb_aps = 0 ; // Number of APs in the APs' ring
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sem_t lock_aps ; // Semaphore to get access to the APs' ring
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int main(int argc, char **argv)
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{
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int ret = 0 ; // Program return value
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struct sigaction action ; // Signal handler structure
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pthread_t
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monitor_thread, // Aggregated data monitoring thread
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monitor_aps_thread, // APs monitoring thread
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autocalibration_hello_thread ; // Hello messages reception thread
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uint_fast16_t listening_port ;
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int sockfd = -1 ; // UDP listening socket
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owl_run = true ;
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program_name = argv[0] ;
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ret = initialise_configuration(argc, argv) ;
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if (! owl_run)
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goto exit ;
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if (cfg_getbool(cfg, "daemon"))
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{
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if (VERBOSE_WARNING)
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fprintf(stderr, "Detaching to background...\n") ;
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if (daemon(0, 0))
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perror("Cannot daemonize") ;
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}
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/* Set up signal handlers */
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action.sa_flags = 0 ;
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sigemptyset(&action.sa_mask) ;
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action.sa_handler = owl_sigint_handler ;
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sigaction(SIGINT, &action, NULL) ;
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action.sa_handler = owl_sigterm_handler ;
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sigaction(SIGTERM, &action, NULL) ;
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/* Set up semaphores */
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sem_init(&lock_requests, 0, 1) ;
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sem_init(&lock_aps, 0, 1) ;
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/* Create UDP socket */
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listening_port = cfg_getint(cfg, "listening_port") ;
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if ((sockfd = owl_create_udp_listening_socket(listening_port)) < 0)
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{
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fprintf(stderr,
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"Error! Cannot listen on port %"PRIuFAST16".\n",
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listening_port) ;
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ret = OWL_ERR_SOCKET_CREATE ;
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goto exit ;
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}
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/* Set up threads */
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ret = pthread_create(&monitor_thread, NULL, &monitor_requests, NULL) ;
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if (ret != 0)
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{
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perror("Cannot create monitor thread") ;
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ret = OWL_ERR_THREAD_CREATE ;
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goto exit ;
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}
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if (cfg_getbool(cfg, "autocalibration"))
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{
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ret = pthread_create(&autocalibration_hello_thread, NULL,
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&listen_for_aps, NULL) ;
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if (ret != 0)
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{
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perror("Cannot create autocalibration hello thread") ;
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ret = OWL_ERR_THREAD_CREATE ;
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goto exit ;
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}
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ret = pthread_create(&monitor_aps_thread, NULL,
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&monitor_aps, NULL) ;
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if (ret != 0)
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{
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perror("Cannot create monitor APs thread") ;
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ret = OWL_ERR_THREAD_CREATE ;
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goto exit ;
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}
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}
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ret = read_loop(sockfd) ;
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/* Wait for the threads to terminate */
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if (VERBOSE_WARNING)
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fprintf(stderr, "Waiting for the monitor thread... ") ;
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if (pthread_join(monitor_thread, NULL) != 0)
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perror("Cannot join monitor thread") ;
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else if (VERBOSE_WARNING)
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fprintf(stderr, "OK.\n") ;
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if (cfg_getbool(cfg, "autocalibration"))
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{
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// We must cancel this thread because it can be blocked on the
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// recvfrom() call:
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if (VERBOSE_WARNING)
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fprintf(stderr,
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"Cancelling the autocalibration hello thread... ") ;
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if (pthread_cancel(autocalibration_hello_thread) != 0)
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perror("Cannot cancel autocalibration hello thread") ;
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else if (VERBOSE_WARNING)
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fprintf(stderr, "OK.\n") ;
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if (VERBOSE_WARNING)
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fprintf(stderr,
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"Waiting for the autocalibration hello thread... ") ;
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if (pthread_join(autocalibration_hello_thread, NULL) != 0)
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perror("Cannot join autocalibration hello thread") ;
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else if (VERBOSE_WARNING)
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fprintf(stderr, "OK.\n") ;
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if (VERBOSE_WARNING)
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fprintf(stderr, "Waiting for the monitor APs thread... ") ;
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if (pthread_join(monitor_aps_thread, NULL) != 0)
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perror("Cannot join monitor APs thread") ;
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else if (VERBOSE_WARNING)
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fprintf(stderr, "OK.\n") ;
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}
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/* Last cleaning tasks */
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exit:
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/* If called with -h, cfg won't be initialised, so we must check if
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* cfg is NULL */
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if (cfg && VERBOSE_CHATTERBOX)
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fprintf(stderr, "%s: exiting.\n", program_name) ;
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if (sockfd >= 0)
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close(sockfd) ; // Close socket
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free_request_list() ;
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free_ap_list() ;
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cfg_free(cfg) ; // Clean configuration
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// Destroy semaphores:
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sem_destroy(&lock_requests) ;
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sem_destroy(&lock_aps) ;
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return ret ;
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}
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/*
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* Read the configuration from both the command line and the
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* configuration file.
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* Returns an error code, or 0 in case of success. If the program should
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* stop (because of a special option or a configuration error), owl_run
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* is set to false.
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*/
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int initialise_configuration(int argc, char **argv)
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{
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int ret ;
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ret = parse_config_file(argc, argv) ;
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if (! owl_run)
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return ret ;
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ret = parse_command_line(argc, argv) ;
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if (! owl_run)
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return ret ;
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ret = check_configuration() ;
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if (! owl_run)
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return ret ;
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/* Configuration dumping */
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if (dump_configuration)
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{
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cfg_print(cfg, stdout) ;
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owl_run = false ;
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return 0 ;
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}
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/* Configuration printing */
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if (VERBOSE_INFO)
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{
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fprintf(stderr, "Configuration:\n") ;
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cfg_print(cfg, stderr) ;
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}
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return 0 ;
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}
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int parse_config_file(int argc, char **argv)
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{
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// Config file options for confuse
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cfg_opt_t opts[] =
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{
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// Daemon mode
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CFG_BOOL("daemon", cfg_false, CFGF_NONE),
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// Verbose level
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CFG_INT("verbose", 0, CFGF_NONE),
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// Aggregation listening port
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CFG_INT("listening_port", OWL_DEFAULT_LISTENER_PORT, CFGF_NONE),
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// Port and IP address of the localisation server:
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CFG_INT("positioner_port", OWL_DEFAULT_AGGREGATION_PORT, CFGF_NONE),
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CFG_STR("positioner_ip", POSITIONER_DEFAULT_IP, CFGF_NONE),
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// Output file (default is the standard output)
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CFG_STR("output_file", "-", CFGF_NONE),
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// Flush the output file or not
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CFG_BOOL("flush_output", cfg_true, CFGF_NONE),
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// Timeouts (in milliseconds):
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CFG_INT("aggregate_timeout", DEFAULT_AGGREGATE_TIMEOUT, CFGF_NONE),
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CFG_INT("keep_timeout", DEFAULT_KEEP_TIMEOUT, CFGF_NONE),
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// Time between two list checks (in milliseconds):
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CFG_INT("check_interval", DEFAULT_CHECK_INTERVAL, CFGF_NONE),
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// Autocalibration activated?
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CFG_BOOL("autocalibration", cfg_false, CFGF_NONE),
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// Port on which autocalibration orders are sent to the listeners:
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CFG_INT("autocalibration_order_port",
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OWL_DEFAULT_AUTOCALIBRATION_ORDER_PORT, CFGF_NONE),
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// Port on which autocalibration hello are received from the
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// listeners:
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CFG_INT("autocalibration_hello_port",
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OWL_DEFAULT_AUTOCALIBRATION_HELLO_PORT, CFGF_NONE),
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// Time we keep APs in the list (in seconds):
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CFG_INT("ap_keep_timeout", DEFAULT_AP_KEEP_TIMEOUT, CFGF_NONE),
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// Time between two checks of the AP list (in milliseconds):
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CFG_INT("ap_check_interval", DEFAULT_AP_CHECK_INTERVAL, CFGF_NONE),
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CFG_END()
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} ;
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char *config_file = NULL ; // Configuration file name
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// Option -f specifies a config file, options -h and -V exit the
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// program, so we search for them first
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int opt ;
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while ((opt = getopt(argc, argv, OPTIONS)) != -1)
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{
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switch (opt)
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{
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case 'f' :
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config_file = malloc((strlen(optarg) + 1) * sizeof(char)) ;
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if (! config_file)
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{
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perror("Cannot allocate memory") ;
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owl_run = false ;
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return errno ;
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}
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strcpy(config_file, optarg) ;
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break ;
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case 'h' :
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print_usage() ;
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owl_run = false ;
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return EXIT_SUCCESS ;
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case 'V' :
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print_version() ;
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owl_run = false ;
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return EXIT_SUCCESS ;
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}
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}
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// If -f isn't found, we use the default config file
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if (config_file == NULL)
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{
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config_file =
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malloc((strlen(DEFAULT_CONFIG_FILE) + 1) * sizeof(char)) ;
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if (! config_file)
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{
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perror("Cannot allocate memory") ;
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owl_run = false ;
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return errno ;
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}
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strcpy(config_file, DEFAULT_CONFIG_FILE) ;
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}
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/* Parse config file */
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cfg = cfg_init(opts, CFGF_NONE) ; // Initialise options
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switch (cfg_parse(cfg, config_file))
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{
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case CFG_FILE_ERROR :
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fprintf(stderr,
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"Error! Cannot open configuration file \"%s\": %s.\n",
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config_file, strerror(errno)) ;
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break ;
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case CFG_PARSE_ERROR :
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fprintf(stderr,
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"Error! Parsing of configuration file \"%s\" failed!\n",
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config_file) ;
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free(config_file) ;
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owl_run = false ;
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return OWL_ERR_CONFIG_FILE ;
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}
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free(config_file) ;
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return 0 ;
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}
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int parse_command_line(int argc, char **argv)
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{
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int opt ;
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optind = 1 ; // Rewind argument parsing
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while ((opt = getopt(argc, argv, OPTIONS)) != -1)
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{
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switch (opt)
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{
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case 'A' :
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cfg_setbool(cfg, "autocalibration", cfg_true) ;
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break ;
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case 'c' :
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cfg_setint(cfg, "check_interval", strtol(optarg, NULL, 0)) ;
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break ;
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case 'C' :
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cfg_setint(cfg, "ap_check_interval", strtol(optarg, NULL, 0)) ;
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break ;
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case 'D' :
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cfg_setbool(cfg, "daemon", cfg_true) ;
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break ;
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case 'f' : // Config file
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break ; // (already parsed)
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case 'F' :
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cfg_setbool(cfg, "flush_output", cfg_false) ;
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break ;
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case 'G' :
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dump_configuration = true ;
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/* We must not turn owl_run false here, to avoid the default
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* check on its value in initialise_configuration(). */
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break ;
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case 'H' :
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cfg_setint(cfg, "autocalibration_hello_port",
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strtol(optarg, NULL, 0)) ;
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break ;
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case 'i' :
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cfg_setstr(cfg, "positioner_ip", optarg) ;
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break ;
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case 'k' :
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cfg_setint(cfg, "keep_timeout", strtol(optarg, NULL, 0)) ;
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break ;
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case 'K' :
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cfg_setint(cfg, "ap_keep_timeout", strtol(optarg, NULL, 0)) ;
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break ;
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case 'l' :
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cfg_setint(cfg, "listening_port", strtol(optarg, NULL, 0)) ;
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break ;
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case 'o' :
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cfg_setstr(cfg, "output_file", optarg) ;
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break ;
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case 'O' :
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cfg_setint(cfg, "autocalibration_order_port",
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strtol(optarg, NULL, 0)) ;
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break ;
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case 'p' :
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cfg_setint(cfg, "positioner_port", strtol(optarg, NULL, 0)) ;
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break ;
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case 'q' :
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// Quiet mode: reset the verbose level
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cfg_setint(cfg, "verbose", 0) ;
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break ;
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case 't' :
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cfg_setint(cfg, "aggregate_timeout", strtol(optarg, NULL, 0)) ;
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break ;
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case 'v' :
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// Increment the verbose level
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cfg_setint(cfg, "verbose",
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cfg_getint(cfg, "verbose") + 1) ;
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break ;
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default :
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print_usage() ;
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owl_run = false ;
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return OWL_ERR_BAD_USAGE ;
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}
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}
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return 0 ;
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}
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int check_configuration()
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{
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// output_file //
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if (cfg_getstr(cfg, "output_file")[0] == '\0')
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{
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fprintf(stderr,
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"Error! The empty string is not a valid output file.\n") ;
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print_usage() ;
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owl_run = false ;
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return OWL_ERR_BAD_USAGE ;
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}
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// listening_port //
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if (cfg_getint(cfg, "listening_port") < 1 ||
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cfg_getint(cfg, "listening_port") > 65535)
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{
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if (VERBOSE_WARNING)
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fprintf(stderr, "Warning! Bad listening_port:"
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" failing back to the default value.\n") ;
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cfg_setint(cfg, "listening_port", OWL_DEFAULT_LISTENER_PORT) ;
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}
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// positioner_port //
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if (cfg_getint(cfg, "positioner_port") < 1 ||
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cfg_getint(cfg, "positioner_port") > 65535)
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{
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if (VERBOSE_WARNING)
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fprintf(stderr, "Warning! Bad positioner_port:"
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" failing back to the default value.\n") ;
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cfg_setint(cfg, "positioner_port", OWL_DEFAULT_AGGREGATION_PORT) ;
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}
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// positioner_ip //
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if (cfg_getstr(cfg, "positioner_ip")[0] == '\0')
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{
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fprintf(stderr, "Error! You must specify the IP address of the"
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" localisation server.\n") ;
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print_usage() ;
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owl_run = false ;
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return OWL_ERR_BAD_USAGE ;
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}
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// aggregate_timeout //
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if (cfg_getint(cfg, "aggregate_timeout") < 0)
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{
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if (VERBOSE_WARNING)
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fprintf(stderr, "Warning! aggregate_timeout cannot be negative:"
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" failing back to the default value.\n") ;
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cfg_setint(cfg, "aggregate_timeout", DEFAULT_AGGREGATE_TIMEOUT) ;
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}
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// keep_timeout //
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if (cfg_getint(cfg, "keep_timeout") < 0)
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{
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if (VERBOSE_WARNING)
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fprintf(stderr, "Warning! keep_timeout cannot be negative:"
|
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" failing back to the default value.\n") ;
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cfg_setint(cfg, "keep_timeout", DEFAULT_KEEP_TIMEOUT) ;
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}
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|
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// check_interval //
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if (cfg_getint(cfg, "check_interval") < 0)
|
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{
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if (VERBOSE_WARNING)
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fprintf(stderr, "Warning! check_interval cannot be negative:"
|
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" failing back to the default value.\n") ;
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cfg_setint(cfg, "check_interval", DEFAULT_CHECK_INTERVAL) ;
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}
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// ap_keep_timeout //
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if (cfg_getint(cfg, "ap_keep_timeout") < 0)
|
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{
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if (VERBOSE_WARNING)
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fprintf(stderr, "Warning! ap_keep_timeout cannot be negative:"
|
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" failing back to the default value.\n") ;
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cfg_setint(cfg, "ap_keep_timeout", DEFAULT_AP_KEEP_TIMEOUT) ;
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}
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|
|
// ap_check_interval //
|
|
if (cfg_getint(cfg, "ap_check_interval") < 0)
|
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{
|
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if (VERBOSE_WARNING)
|
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fprintf(stderr, "Warning! ap_check_interval cannot be negative:"
|
|
" failing back to the default value.\n") ;
|
|
cfg_setint(cfg, "ap_check_interval", DEFAULT_AP_CHECK_INTERVAL) ;
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}
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|
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return 0 ;
|
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}
|
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|
|
|
|
|
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/*
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|
* Reads packets while the program is not stopped.
|
|
*/
|
|
int read_loop(int sockfd)
|
|
{
|
|
int ret = 0 ; // Return value
|
|
ssize_t nread ; // recvfrom return value
|
|
struct sockaddr_in client; // UDP client structure
|
|
socklen_t client_len = sizeof(client) ; // Size of clients
|
|
owl_captured_request request ; // Message read on the socket
|
|
|
|
while (owl_run)
|
|
{
|
|
nread = recvfrom(sockfd, &request, sizeof(request), 0,
|
|
(struct sockaddr *) &client, &client_len) ;
|
|
|
|
if (nread <= 0)
|
|
{
|
|
if (owl_run)
|
|
{
|
|
perror("No request received from listener") ;
|
|
ret = OWL_ERR_SOCKET_RECV ;
|
|
}
|
|
break ;
|
|
}
|
|
|
|
// Endianess conversions:
|
|
owl_ntoh_timestamp(&request.request_time) ;
|
|
owl_ntoh_timestamp(&request.capture_time) ;
|
|
request.x_position = owl_ntohf(request.x_position) ;
|
|
request.y_position = owl_ntohf(request.y_position) ;
|
|
request.z_position = owl_ntohf(request.z_position) ;
|
|
request.packet_id = ntohs(request.packet_id) ;
|
|
request.nb_packets = ntohs(request.nb_packets) ;
|
|
|
|
if (VERBOSE_REQUESTS)
|
|
{
|
|
char
|
|
request_time_str[OWL_TIMESTAMP_STRLEN],
|
|
capture_time_str[OWL_TIMESTAMP_STRLEN],
|
|
ap_mac_addr_str[OWL_ETHER_ADDR_STRLEN],
|
|
mobile_mac_addr_str[OWL_ETHER_ADDR_STRLEN],
|
|
mobile_ip_str[INET_ADDRSTRLEN] ;
|
|
|
|
owl_timestamp_to_string(&request.request_time,
|
|
request_time_str) ;
|
|
owl_timestamp_to_string(&request.capture_time,
|
|
capture_time_str) ;
|
|
owl_mac_bytes_to_string_r(request.ap_mac_addr_bytes,
|
|
ap_mac_addr_str) ;
|
|
owl_mac_bytes_to_string_r(request.mobile_mac_addr_bytes,
|
|
mobile_mac_addr_str) ;
|
|
inet_ntop(AF_INET, &request.mobile_ip_addr_bytes,
|
|
mobile_ip_str, INET_ADDRSTRLEN) ;
|
|
|
|
fprintf(stderr,
|
|
"\n"
|
|
"*** Request received from AP ***\n"
|
|
"\tType: %"PRIu8"\n"
|
|
"\tAP MAC: %s\n"
|
|
"\tMobile MAC: %s\n"
|
|
"\tMobile IP: %s\n"
|
|
"\tRequest timestamp: %s\n"
|
|
"\tRequest arrival time on the AP: %s\n"
|
|
"\tSignal: %"PRId8" dBm\n"
|
|
"\tPosition X: %f\n"
|
|
"\tPosition Y: %f\n"
|
|
"\tPosition Z: %f\n"
|
|
"\tDirection: %"PRIu8"\n"
|
|
"\tPacket number: %"PRIu16"/%"PRIu16"\n"
|
|
,
|
|
request.type,
|
|
ap_mac_addr_str,
|
|
mobile_mac_addr_str,
|
|
mobile_ip_str,
|
|
request_time_str,
|
|
capture_time_str,
|
|
request.ss_dbm,
|
|
request.x_position,
|
|
request.y_position,
|
|
request.z_position,
|
|
request.direction,
|
|
request.packet_id,
|
|
request.nb_packets
|
|
) ;
|
|
}
|
|
else if (VERBOSE_CHATTERBOX)
|
|
fprintf(stderr, "Request received from AP \"%s\".\n",
|
|
owl_mac_bytes_to_string(request.ap_mac_addr_bytes)) ;
|
|
|
|
got_request(request) ;
|
|
}
|
|
|
|
return ret ;
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
* Thread function. Monitors the list and sends information to the
|
|
* localisation server when the timeout is reached.
|
|
*/
|
|
void* monitor_requests(void *NULL_value)
|
|
{
|
|
request_list *request_ptr, *request_prev ;
|
|
request_info_list *request_info_ptr ;
|
|
owl_timestamp current_time ;
|
|
FILE *fd = NULL ;
|
|
char mac_str[OWL_ETHER_ADDR_STRLEN] ;
|
|
uint_fast32_t sub ; // owl_time_elapsed_ms() result
|
|
char request_time_str[OWL_TIMESTAMP_STRLEN] ;
|
|
|
|
uint_fast32_t aggregate_timeout =
|
|
cfg_getint(cfg, "aggregate_timeout") ;
|
|
uint_fast32_t keep_timeout = cfg_getint(cfg, "keep_timeout") ;
|
|
|
|
struct sockaddr_in serv;
|
|
struct sockaddr_in client ;
|
|
socklen_t serv_len = sizeof(serv);
|
|
owl_request request ;
|
|
owl_request_info info;
|
|
int sockfd;
|
|
|
|
if (VERBOSE_WARNING)
|
|
fprintf(stderr, "Monitor requests thread launched.\n") ;
|
|
|
|
sockfd =
|
|
owl_create_udp_trx_socket(cfg_getstr(cfg, "positioner_ip"),
|
|
cfg_getint(cfg, "positioner_port"),
|
|
&serv, &client) ;
|
|
pthread_cleanup_push(&owl_close_fd, &sockfd) ;
|
|
|
|
/* Open output file */
|
|
if (strcmp("-", cfg_getstr(cfg, "output_file")) == 0)
|
|
fd = stdout ;
|
|
else
|
|
{
|
|
fd = fopen(cfg_getstr(cfg, "output_file"), "a") ; // add mode
|
|
if (fd == NULL) // If we failed to open the file,
|
|
{
|
|
perror("Cannot open output file") ;
|
|
fprintf(stderr, "Redirecting output to standard output.\n") ;
|
|
fd = stdout ; // we fail back to stdout.
|
|
}
|
|
}
|
|
pthread_cleanup_push(&owl_close_file, &fd) ;
|
|
|
|
while (owl_run)
|
|
{
|
|
request_prev = NULL ;
|
|
request_info_ptr = NULL ;
|
|
|
|
sem_wait(&lock_requests) ;
|
|
|
|
owl_timestamp_now(¤t_time) ;
|
|
request_ptr = requests ;
|
|
|
|
while (request_ptr != NULL) // Parsing list
|
|
{
|
|
sub = owl_time_elapsed_ms(&request_ptr->start_time,
|
|
¤t_time) ;
|
|
|
|
// If the request was not treated already
|
|
if (request_ptr->info != NULL)
|
|
{
|
|
// If the timeout is reached
|
|
if (sub > aggregate_timeout)
|
|
{
|
|
if (VERBOSE_CHATTERBOX)
|
|
fprintf(stderr, "* Aggregate timeout reached:"
|
|
" %"PRIuFAST32" > %"PRIuFAST32"\n",
|
|
sub, aggregate_timeout) ;
|
|
|
|
// Print mobile MAC address to the output file
|
|
owl_mac_bytes_to_string_r(request_ptr->
|
|
mobile_mac_addr_bytes,
|
|
mac_str) ;
|
|
fprintf(fd, "%s;", mac_str) ;
|
|
|
|
// Print request type & number of packets to the
|
|
// output file
|
|
fprintf(fd, "%"PRIu8";%"PRIu16";",
|
|
request_ptr->type, request_ptr->nb_packets) ;
|
|
|
|
// Print request mobile timestamp to the output file
|
|
owl_timestamp_to_string(&request_ptr->request_time,
|
|
request_time_str) ;
|
|
fprintf(fd, "%s;", request_time_str) ;
|
|
|
|
// Print request info to the output file
|
|
fprintf(fd, "%0.2f;%0.2f;%0.2f;%hhd",
|
|
request_ptr->x_position,
|
|
request_ptr->y_position,
|
|
request_ptr->z_position,
|
|
request_ptr->direction) ;
|
|
|
|
// Initialise owl_request fields:
|
|
request.type = request_ptr->type ;
|
|
request.nb_packets = htons(request_ptr->nb_packets) ;
|
|
memcpy(request.mobile_mac_addr_bytes,
|
|
request_ptr->mobile_mac_addr_bytes,
|
|
ETHER_ADDR_LEN) ;
|
|
memcpy(request.mobile_ip_addr_bytes,
|
|
request_ptr->mobile_ip_addr_bytes, 4) ;
|
|
request.request_time = request_ptr->request_time ;
|
|
owl_hton_timestamp(&request.request_time) ;
|
|
request.x_position =
|
|
owl_htonf(request_ptr->x_position) ;
|
|
request.y_position =
|
|
owl_htonf(request_ptr->y_position) ;
|
|
request.z_position =
|
|
owl_htonf(request_ptr->z_position) ;
|
|
request.direction = request_ptr->direction ;
|
|
// Count the requests:
|
|
request.nb_info = 0 ;
|
|
request_info_ptr = request_ptr->info ;
|
|
while (request_info_ptr != NULL)
|
|
{
|
|
++request.nb_info ;
|
|
request_info_ptr = request_info_ptr->next ;
|
|
}
|
|
request.nb_info = htons(request.nb_info) ;
|
|
// Send the request:
|
|
sendto(sockfd, &request, sizeof(request), 0,
|
|
(struct sockaddr *)&serv, serv_len) ;
|
|
|
|
// Send requests to the server and empty the list
|
|
request_info_ptr = request_ptr->info ;
|
|
while (request_info_ptr != NULL)
|
|
{
|
|
// Send AP info to the localisation server
|
|
info.packet_id =
|
|
htons(request_info_ptr->packet_id) ;
|
|
memcpy(info.ap_mac_addr_bytes,
|
|
request_info_ptr->ap_mac_addr_bytes,
|
|
ETHER_ADDR_LEN) ;
|
|
info.capture_time = request_info_ptr->capture_time ;
|
|
owl_hton_timestamp(&info.capture_time) ;
|
|
info.ss_dbm = request_info_ptr->ss_dbm ;
|
|
sendto(sockfd, &info, sizeof(info),
|
|
0, (struct sockaddr *)&serv, serv_len) ;
|
|
|
|
// Print AP info to the output file
|
|
owl_mac_bytes_to_string_r(request_info_ptr->
|
|
ap_mac_addr_bytes,
|
|
mac_str) ;
|
|
fprintf(fd, ";%s;%"PRIu16";%"PRId8,
|
|
mac_str,
|
|
request_info_ptr->packet_id,
|
|
request_info_ptr->ss_dbm) ;
|
|
|
|
// Delete request
|
|
request_info_ptr = request_info_ptr->next ;
|
|
free(request_ptr->info) ;
|
|
request_ptr->info = request_info_ptr ;
|
|
}
|
|
|
|
fprintf(fd, "\n") ;
|
|
}
|
|
}
|
|
|
|
// If the request was treated and keep timeout is reached
|
|
else if (sub > keep_timeout)
|
|
{
|
|
request_list *request_tmp = request_ptr ;
|
|
|
|
if (VERBOSE_CHATTERBOX)
|
|
fprintf(stderr, "* Keep timeout reached:"
|
|
" %"PRIuFAST32" > %"PRIuFAST32"\n",
|
|
sub, keep_timeout) ;
|
|
|
|
request_ptr = request_ptr->next ;
|
|
|
|
// If it is the first request of the list
|
|
if (request_prev == NULL)
|
|
requests = request_ptr ; // we shift the head
|
|
else // else we put the next of the previous on the next
|
|
request_prev->next = request_ptr ;
|
|
|
|
free(request_tmp) ;
|
|
|
|
continue ;
|
|
}
|
|
|
|
// Next request
|
|
request_prev = request_ptr ;
|
|
request_ptr = request_ptr->next ;
|
|
}
|
|
|
|
sem_post(&lock_requests) ;
|
|
|
|
if (cfg_getbool(cfg, "flush_output"))
|
|
if (fflush(fd))
|
|
perror("Failed to flush the output file") ;
|
|
|
|
// Wait to check again:
|
|
owl_msleep(cfg_getint(cfg, "check_interval")) ;
|
|
}
|
|
|
|
/* Close output file & socket */
|
|
pthread_cleanup_pop(1) ;
|
|
pthread_cleanup_pop(1) ;
|
|
|
|
pthread_exit(NULL_value) ;
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
* Treats a received packet.
|
|
*/
|
|
void got_request(owl_captured_request request)
|
|
{
|
|
request_list *tmp_request = NULL ;
|
|
request_info_list *tmp_info = NULL ;
|
|
owl_timestamp start_time ; // Reception time on the aggregator
|
|
|
|
owl_timestamp_now(&start_time) ;
|
|
|
|
/* Create a new request */
|
|
tmp_info = malloc(sizeof(request_info_list)) ;
|
|
if (! tmp_info)
|
|
{
|
|
perror("Cannot allocate memory") ;
|
|
owl_run = false ;
|
|
return ;
|
|
}
|
|
|
|
tmp_info->packet_id = request.packet_id ;
|
|
memcpy(tmp_info->ap_mac_addr_bytes, request.ap_mac_addr_bytes,
|
|
ETHER_ADDR_LEN) ;
|
|
tmp_info->capture_time = request.capture_time ;
|
|
tmp_info->ss_dbm = request.ss_dbm ;
|
|
tmp_info->next = NULL ;
|
|
|
|
/* Add it in the list */
|
|
sem_wait(&lock_requests) ;
|
|
|
|
tmp_request = requests ;
|
|
if (requests == NULL) // If the request list does not exist,
|
|
{
|
|
if (VERBOSE_INFO)
|
|
fprintf(stderr, "Creating request list with AP \"%s\".\n",
|
|
owl_mac_bytes_to_string(request.ap_mac_addr_bytes)) ;
|
|
tmp_request = malloc(sizeof(request_list)) ; // create it.
|
|
if (! tmp_request)
|
|
{
|
|
perror("Cannot allocate memory") ;
|
|
owl_run = false ;
|
|
goto end ;
|
|
}
|
|
tmp_request->type = request.type ;
|
|
tmp_request->nb_packets = request.nb_packets ;
|
|
memcpy(tmp_request->mobile_mac_addr_bytes,
|
|
request.mobile_mac_addr_bytes, ETHER_ADDR_LEN) ;
|
|
memcpy(tmp_request->mobile_ip_addr_bytes,
|
|
request.mobile_ip_addr_bytes, 4) ;
|
|
// Explicit packet:
|
|
if (request.type != OWL_REQUEST_IMPLICIT)
|
|
// Transmission time on the mobile:
|
|
tmp_request->request_time = request.request_time ;
|
|
// Implicit packet:
|
|
else
|
|
// Reception time on the AP:
|
|
tmp_request->request_time = request.capture_time ;
|
|
// Save locale time on the aggregator (not the reception time
|
|
// on the AP):
|
|
tmp_request->start_time = start_time ;
|
|
tmp_request->x_position = request.x_position ;
|
|
tmp_request->y_position = request.y_position ;
|
|
tmp_request->z_position = request.z_position ;
|
|
tmp_request->direction = request.direction ;
|
|
tmp_request->next = NULL ;
|
|
tmp_request->info = tmp_info ;
|
|
requests = tmp_request ;
|
|
}
|
|
|
|
else // If the request list exists already
|
|
{ // we search the list for the request
|
|
// Explicit packet:
|
|
if (request.type != OWL_REQUEST_IMPLICIT)
|
|
{
|
|
while (tmp_request != NULL)
|
|
{ // Research criterion: MAC and transmission time
|
|
if (owl_mac_equals(request.mobile_mac_addr_bytes,
|
|
tmp_request->mobile_mac_addr_bytes)
|
|
&& owl_timestamp_equals(&request.request_time,
|
|
&tmp_request->request_time))
|
|
break ; // If the request exists, we stop on it
|
|
tmp_request = tmp_request->next ;
|
|
}
|
|
}
|
|
// Implicit packet:
|
|
else
|
|
{
|
|
while (tmp_request != NULL)
|
|
{ // Research criterion: MAC addresses equals and reception
|
|
// times on the APs less than 10 ms
|
|
// TODO : define an option for the maximal difference time.
|
|
if (owl_mac_equals(request.mobile_mac_addr_bytes,
|
|
tmp_request->mobile_mac_addr_bytes) &&
|
|
owl_time_elapsed_ms(&request.capture_time,
|
|
&tmp_request->request_time) <= 10)
|
|
break ; // If the request exists, we stop on it
|
|
tmp_request = tmp_request->next ;
|
|
}
|
|
}
|
|
|
|
if (tmp_request == NULL) // The request does not exist in the list
|
|
{
|
|
if (VERBOSE_INFO)
|
|
fprintf(stderr, "Create new request from AP \"%s\".\n",
|
|
owl_mac_bytes_to_string(request.ap_mac_addr_bytes)) ;
|
|
tmp_request = malloc(sizeof(request_list)) ; // create it
|
|
if (! tmp_request)
|
|
{
|
|
perror("Cannot allocate memory") ;
|
|
owl_run = false ;
|
|
goto end ;
|
|
}
|
|
tmp_request->type = request.type ;
|
|
tmp_request->nb_packets = request.nb_packets ;
|
|
memcpy(tmp_request->mobile_mac_addr_bytes,
|
|
request.mobile_mac_addr_bytes, ETHER_ADDR_LEN) ;
|
|
memcpy(tmp_request->mobile_ip_addr_bytes,
|
|
request.mobile_ip_addr_bytes, 4) ;
|
|
// Explicit packet:
|
|
if (request.type != OWL_REQUEST_IMPLICIT)
|
|
// Transmission time on the mobile:
|
|
tmp_request->request_time = request.request_time ;
|
|
// Implicit packet:
|
|
else
|
|
// Reception time on the AP:
|
|
tmp_request->request_time = request.capture_time ;
|
|
// Save the local time on the aggregator (not the reception
|
|
// time on the AP):
|
|
tmp_request->start_time = start_time ;
|
|
tmp_request->x_position = request.x_position ;
|
|
tmp_request->y_position = request.y_position ;
|
|
tmp_request->z_position = request.z_position ;
|
|
tmp_request->direction = request.direction ;
|
|
tmp_request->next = requests ;
|
|
tmp_request->info = tmp_info ;
|
|
requests = tmp_request ;
|
|
}
|
|
else // If the request was found in the list
|
|
{
|
|
if (tmp_request->info == NULL)
|
|
{ // We already sent to the server data for this request
|
|
if (VERBOSE_CHATTERBOX)
|
|
fprintf(stderr, "Request already treated.\n") ;
|
|
free(tmp_info) ;
|
|
}
|
|
else
|
|
{
|
|
if (VERBOSE_CHATTERBOX)
|
|
fprintf(stderr, "Add information to the request.\n") ;
|
|
tmp_info->next = tmp_request->info ; // Add data
|
|
tmp_request->info = tmp_info ;
|
|
}
|
|
}
|
|
}
|
|
|
|
end:
|
|
sem_post(&lock_requests) ;
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
* Empties the request list.
|
|
* Note that this function does not use lock_requests, so it should not
|
|
* be called in a concurrent context.
|
|
*/
|
|
void free_request_list()
|
|
{
|
|
request_list *next_request ;
|
|
request_info_list *next_request_info ;
|
|
|
|
while (requests != NULL)
|
|
{
|
|
while (requests->info != NULL)
|
|
{
|
|
next_request_info = requests->info->next ;
|
|
free(requests->info) ;
|
|
requests->info = next_request_info ;
|
|
}
|
|
next_request = requests->next ;
|
|
free(requests) ;
|
|
requests = next_request ;
|
|
}
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
* Thread function. Listens for hello messages from APs.
|
|
*/
|
|
void* listen_for_aps(void *NULL_value)
|
|
{
|
|
int listen_sockfd ;
|
|
int nread ; // recvfrom return value
|
|
struct sockaddr_in client; // UDP client structure
|
|
socklen_t client_len = sizeof(client) ; // Size of clients
|
|
owl_autocalibration_hello message ;
|
|
char ap_ip_addr[INET_ADDRSTRLEN] ;
|
|
|
|
if (VERBOSE_WARNING)
|
|
fprintf(stderr, "Autocalibration Hello thread launched.\n") ;
|
|
|
|
listen_sockfd =
|
|
owl_create_udp_listening_socket(cfg_getint(cfg,
|
|
"autocalibration_hello_port")) ;
|
|
if (listen_sockfd < 0)
|
|
{
|
|
perror("Error! Cannot create UDP listening socket from the"
|
|
" listeners") ;
|
|
exit(OWL_ERR_SOCKET_CREATE) ;
|
|
}
|
|
pthread_cleanup_push(&owl_close_fd, &listen_sockfd) ;
|
|
|
|
while (owl_run)
|
|
{
|
|
nread = recvfrom(listen_sockfd, &message, sizeof(message), 0,
|
|
(struct sockaddr *) &client, &client_len) ;
|
|
|
|
if (nread <= 0)
|
|
{
|
|
if (owl_run)
|
|
perror("No message received from listener") ;
|
|
continue ;
|
|
}
|
|
|
|
inet_ntop(AF_INET, &client.sin_addr, ap_ip_addr, INET_ADDRSTRLEN) ;
|
|
|
|
if (VERBOSE_INFO)
|
|
fprintf(stderr,
|
|
"Got a Hello message from \"%s\"\n", ap_ip_addr) ;
|
|
|
|
sem_wait(&lock_aps) ;
|
|
update_ap(message.ap_mac_addr_bytes, ap_ip_addr) ;
|
|
sem_post(&lock_aps) ;
|
|
}
|
|
|
|
/* Close the socket */
|
|
pthread_cleanup_pop(1) ;
|
|
|
|
pthread_exit(NULL_value) ;
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
* Updates the timestamp of the AP with the given MAC address if it is in
|
|
* the AP list, or add a new AP with this MAC address to the AP list.
|
|
*/
|
|
void update_ap(uint8_t mac_addr_bytes[ETHER_ADDR_LEN],
|
|
char ip_addr[INET_ADDRSTRLEN])
|
|
{
|
|
ap_list *found ;
|
|
|
|
if ((found = find_ap(mac_addr_bytes)) == NULL)
|
|
{
|
|
ap_list *new_ap = add_ap_front(mac_addr_bytes) ;
|
|
if (new_ap)
|
|
update_ap_ip_addr(new_ap, ip_addr) ;
|
|
}
|
|
|
|
else
|
|
update_ap_seen(found) ;
|
|
}
|
|
|
|
|
|
/*
|
|
* Searches the AP list for an AP with the given MAC address and returns
|
|
* it.
|
|
*/
|
|
ap_list* find_ap(uint8_t mac_addr_bytes[ETHER_ADDR_LEN])
|
|
{
|
|
ap_list *found ;
|
|
|
|
if (token_aps == NULL)
|
|
return NULL ;
|
|
|
|
found = token_aps ;
|
|
do
|
|
{
|
|
if (owl_mac_equals(found->mac_addr_bytes, mac_addr_bytes))
|
|
return found ;
|
|
found = found->next ;
|
|
}
|
|
while (found != token_aps) ;
|
|
|
|
return NULL ;
|
|
}
|
|
|
|
|
|
/*
|
|
* Adds a new AP in front of the AP list.
|
|
* Returns the new list head, or NULL in case of error.
|
|
*/
|
|
ap_list* add_ap_front(uint8_t mac_addr_bytes[ETHER_ADDR_LEN])
|
|
{
|
|
if (VERBOSE_INFO)
|
|
{
|
|
char mac_str[OWL_ETHER_ADDR_STRLEN] ;
|
|
owl_mac_bytes_to_string_r(mac_addr_bytes, mac_str) ;
|
|
fprintf(stderr,
|
|
"Creating AP with MAC address \"%s\"...\n", mac_str) ;
|
|
}
|
|
|
|
ap_list *ap = malloc(sizeof(ap_list)) ;
|
|
if (! ap)
|
|
{
|
|
perror("Cannot allocate memory") ;
|
|
owl_run = false ;
|
|
return NULL ;
|
|
}
|
|
memcpy(ap->mac_addr_bytes, mac_addr_bytes, ETHER_ADDR_LEN) ;
|
|
update_ap_seen(ap) ;
|
|
push_ap(ap) ;
|
|
return ap ;
|
|
}
|
|
|
|
|
|
/*
|
|
* Change the IP address of the AP 'ap' with 'ip_addr'.
|
|
*/
|
|
void update_ap_ip_addr(ap_list *ap, char ip_addr[INET_ADDRSTRLEN])
|
|
{
|
|
strncpy(ap->ip_addr, ip_addr, INET_ADDRSTRLEN) ;
|
|
}
|
|
|
|
|
|
/*
|
|
* Updates the timestamp of the given AP.
|
|
*/
|
|
void update_ap_seen(ap_list *ap)
|
|
{
|
|
assert(ap) ;
|
|
owl_timestamp_now(&ap->last_seen) ;
|
|
}
|
|
|
|
|
|
/*
|
|
* Puts an existing AP in front of the AP list. The AP must not be in
|
|
* the list yet.
|
|
*/
|
|
void push_ap(ap_list *ap)
|
|
{
|
|
assert(ap) ;
|
|
|
|
++nb_aps ;
|
|
|
|
if (token_aps == NULL) // List does not exist yet
|
|
{
|
|
token_aps = ap ;
|
|
ap->next = ap ;
|
|
ap->previous = ap ;
|
|
return ;
|
|
}
|
|
|
|
ap->previous = token_aps->previous ;
|
|
ap->previous->next = ap ;
|
|
ap->next = token_aps ;
|
|
token_aps->previous = ap ;
|
|
token_aps = ap ;
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
* Monitors the AP list: sends orders to APs following their order in
|
|
* the list, and deletes old APs.
|
|
*/
|
|
void* monitor_aps(void *NULL_value)
|
|
{
|
|
if (VERBOSE_WARNING)
|
|
fprintf(stderr, "Monitor AP thread launched.\n") ;
|
|
|
|
while (owl_run)
|
|
{
|
|
sem_wait(&lock_aps) ;
|
|
delete_old_aps() ;
|
|
sem_post(&lock_aps) ;
|
|
|
|
// Here we're not in a hurry, so we released the semaphore to
|
|
// allow listen_for_aps() to process a received hello packet,
|
|
// if needed.
|
|
|
|
sem_wait(&lock_aps) ;
|
|
if (nb_aps > 1)
|
|
{
|
|
order_send(token_aps) ;
|
|
token_aps = token_aps->next ;
|
|
}
|
|
sem_post(&lock_aps) ;
|
|
|
|
owl_msleep(cfg_getint(cfg, "ap_check_interval")) ;
|
|
}
|
|
|
|
pthread_exit(NULL_value) ;
|
|
}
|
|
|
|
|
|
/*
|
|
* Deletes APs that did not send any Hello packet for a while, following
|
|
* the list order. Stops on the first not-to-be-deleted AP.
|
|
*/
|
|
void delete_old_aps()
|
|
{
|
|
owl_timestamp now ;
|
|
|
|
owl_timestamp_now(&now) ;
|
|
|
|
while (token_aps != NULL)
|
|
if (owl_time_elapsed_ms(&token_aps->last_seen, &now) >
|
|
(uint_fast32_t) cfg_getint(cfg, "ap_keep_timeout") * 1000)
|
|
delete_ap(token_aps) ;
|
|
else
|
|
return ;
|
|
}
|
|
|
|
|
|
/*
|
|
* Deletes the given AP from the AP list.
|
|
*/
|
|
void delete_ap(ap_list *ap)
|
|
{
|
|
if (VERBOSE_INFO)
|
|
{
|
|
char mac_str[OWL_ETHER_ADDR_STRLEN] ;
|
|
assert(ap) ;
|
|
owl_mac_bytes_to_string_r(ap->mac_addr_bytes, mac_str) ;
|
|
fprintf(stderr, "Deleting AP \"%s\"...\n", mac_str) ;
|
|
}
|
|
|
|
unlink_ap(ap) ;
|
|
free(ap) ;
|
|
}
|
|
|
|
|
|
/*
|
|
* Extracts the given AP from the AP list (it will not be linked to any
|
|
* other element of the list).
|
|
*/
|
|
void unlink_ap(ap_list *ap)
|
|
{
|
|
ap_list
|
|
*ap_previous,
|
|
*ap_next ;
|
|
|
|
assert(ap) ;
|
|
ap_previous = ap->previous ;
|
|
ap_next = ap->next ;
|
|
assert(ap_previous) ;
|
|
assert(ap_next) ;
|
|
|
|
ap_previous->next = ap_next ;
|
|
ap_next->previous = ap_previous ;
|
|
|
|
if (ap == token_aps)
|
|
{
|
|
if (ap->next == ap) // It was the last AP in the ring
|
|
token_aps = NULL ;
|
|
else
|
|
token_aps = ap_next ;
|
|
}
|
|
|
|
--nb_aps ;
|
|
}
|
|
|
|
|
|
/*
|
|
* Sends a 'send' order to the given AP.
|
|
*/
|
|
void order_send(ap_list *ap)
|
|
{
|
|
owl_autocalibration_order message ;
|
|
struct sockaddr_in serv;
|
|
struct sockaddr_in client ;
|
|
socklen_t serv_len = sizeof(serv);
|
|
int sockfd ;
|
|
ssize_t nsent ;
|
|
|
|
if (VERBOSE_INFO)
|
|
fprintf(stderr, "Sending an order to %s...\n", ap->ip_addr) ;
|
|
|
|
sockfd =
|
|
owl_create_udp_trx_socket(ap->ip_addr,
|
|
cfg_getint(cfg,
|
|
"autocalibration_order_port"),
|
|
&serv, &client) ;
|
|
|
|
message.order = AUTOCALIBRATION_ORDER_SEND ;
|
|
nsent = sendto(sockfd, &message, sizeof(message), 0,
|
|
(struct sockaddr *)&serv, serv_len) ;
|
|
if (nsent != (ssize_t) sizeof(message))
|
|
{
|
|
perror("Error sending order to the listener") ;
|
|
exit(OWL_ERR_SOCKET_SEND) ;
|
|
}
|
|
|
|
close(sockfd) ;
|
|
}
|
|
|
|
|
|
/*
|
|
* Empties the AP list.
|
|
* Note that this function does not use lock_aps, so it should not
|
|
* be called in a concurrent context.
|
|
*/
|
|
void free_ap_list()
|
|
{
|
|
ap_list *ap_ptr ;
|
|
|
|
if (token_aps == NULL)
|
|
return ;
|
|
|
|
ap_ptr = token_aps->next ;
|
|
assert(ap_ptr) ;
|
|
|
|
while (ap_ptr != token_aps)
|
|
{
|
|
ap_list *ap_tmp = ap_ptr ;
|
|
ap_ptr = ap_ptr->next ;
|
|
free(ap_tmp) ;
|
|
}
|
|
|
|
free(token_aps) ;
|
|
token_aps = NULL ;
|
|
}
|
|
|
|
|
|
|
|
#ifndef NDEBUG
|
|
/*
|
|
* Prints the request list.
|
|
*/
|
|
void print_request_list()
|
|
{
|
|
request_list *request_ptr = NULL ;
|
|
request_info_list *info_ptr = NULL ;
|
|
char mobile_mac_str[OWL_ETHER_ADDR_STRLEN] ;
|
|
char
|
|
request_time_str[OWL_TIMESTAMP_STRLEN],
|
|
start_time_str[OWL_TIMESTAMP_STRLEN] ;
|
|
|
|
sem_wait(&lock_requests) ;
|
|
|
|
if (requests == NULL) // Empty list
|
|
{
|
|
fprintf(stderr, "No request.\n") ;
|
|
return ;
|
|
}
|
|
|
|
request_ptr = requests ;
|
|
while (request_ptr != NULL)
|
|
{
|
|
info_ptr = request_ptr->info ; // Get the sub-list pointer
|
|
|
|
owl_mac_bytes_to_string_r(request_ptr->mobile_mac_addr_bytes,
|
|
mobile_mac_str) ;
|
|
owl_timestamp_to_string(&request_ptr->request_time,
|
|
request_time_str) ;
|
|
owl_timestamp_to_string(&request_ptr->start_time,
|
|
start_time_str) ;
|
|
fprintf(stderr,
|
|
"Type: %"PRIu8"\n"
|
|
"Mobile MAC: %s\n"
|
|
"Sequence number: %s\n"
|
|
"Reception timestamp: %s\n"
|
|
"\n",
|
|
request_ptr->type,
|
|
mobile_mac_str,
|
|
request_time_str,
|
|
start_time_str
|
|
) ;
|
|
|
|
// Parse information relative to the current request
|
|
while (info_ptr != NULL)
|
|
{
|
|
print_request_info(info_ptr) ;
|
|
putc('\n', stderr) ;
|
|
info_ptr = info_ptr->next ;
|
|
}
|
|
|
|
fprintf(stderr, "\n\n") ;
|
|
|
|
request_ptr = request_ptr->next ;
|
|
}
|
|
|
|
sem_post(&lock_requests) ;
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
* Prints an element of a request_info_list.
|
|
*/
|
|
void print_request_info(request_info_list *info)
|
|
{
|
|
char ap_mac_str[OWL_ETHER_ADDR_STRLEN] ;
|
|
if (info == NULL)
|
|
return ;
|
|
|
|
owl_mac_bytes_to_string_r(info->ap_mac_addr_bytes, ap_mac_str) ;
|
|
fprintf(stderr,
|
|
"\tAP MAC: %s\n"
|
|
"\tSignal strength: %"PRId8" dBm\n",
|
|
ap_mac_str,
|
|
info->ss_dbm
|
|
) ;
|
|
}
|
|
#endif // NDEBUG
|
|
|
|
|
|
|
|
void print_usage()
|
|
{
|
|
printf("Usage:\n"
|
|
"\t%s"
|
|
" [-f config_file]"
|
|
" [-G]"
|
|
" [-D]"
|
|
" [-v[v[v[v]]] | -q]"
|
|
"\n\t"
|
|
" [-o out_file]"
|
|
" [-F]"
|
|
" [-i positionner_ip]"
|
|
" [-p positioner_port]"
|
|
"\n\t"
|
|
" [-l listening_port]"
|
|
" [-t aggregate_timeout]"
|
|
" [-k keep_timeout]"
|
|
"\n\t"
|
|
" [-c check_interval]"
|
|
" [-A]"
|
|
" [-a autocalibration_port]"
|
|
"\n\t"
|
|
" [-K ap_keep_timeout]"
|
|
" [-C ap_check_interval]"
|
|
"\n"
|
|
"\t%s -h\n"
|
|
"\t%s -V\n"
|
|
|
|
"Main options:\n"
|
|
"\t-h\t\tPrint this help message and exit.\n"
|
|
"\t-V\t\tShow version information and exit.\n"
|
|
"\t-f config_file\tUse 'config_file' instead of the default"
|
|
" configuration\n\t\t\tfile (%s).\n"
|
|
"\t-G\t\tDump the configuration on the standard output and exit"
|
|
"\n\t\t\t(useful to generate a configuration file from the"
|
|
"\n\t\t\tcurrent set of options).\n"
|
|
"\t-D\t\tDaemon mode.\n"
|
|
"\t-v\t\tBe verbose. You can use this option up to 4 times to"
|
|
"\n\t\t\tincrease the level of verbosity (1 = warnings,\n\t\t\t"
|
|
"2 = useful information, 3 = too much information,\n\t\t\t4 = "
|
|
"displays the detail of each and every received\n\t\t\t"
|
|
"request).\n"
|
|
"\t-q\t\tQuiet mode (default): sets the verbose level to 0.\n"
|
|
|
|
"Output options:\n"
|
|
"\t-o out_file\t\tAggregated requests will be appended to"
|
|
" this CSV\n\t\t\t\tfile (default is \"-\", i.e. the standard"
|
|
" output).\n"
|
|
"\t-F\t\t\tDo not flush the output file after each analyse"
|
|
"\n\t\t\t\tof the requests' list.\n"
|
|
"\t-i positionner_ip\tIP address of the localisation server"
|
|
" (default:\n\t\t\t\t%s).\n"
|
|
"\t-p positioner_port\tAggregated requests are transmitted to"
|
|
" the\n\t\t\t\tlocalisation server on this port (default:"
|
|
"\n\t\t\t\t%d).\n"
|
|
|
|
"Aggregation options:\n"
|
|
"\t-l listening_port\tOnly requests sent on this port will be"
|
|
" treated\n\t\t\t\t(default: %d).\n"
|
|
"\t-t aggregate_timeout\tRequests are stored during"
|
|
" 'aggregate_timeout'\n\t\t\t\tmilliseconds before to be"
|
|
" grouped (default:\n\t\t\t\t%d ms).\n"
|
|
"\t-k keep_timeout\t\tAggregated requests are kept during"
|
|
"\n\t\t\t\t'keep_timeout' milliseconds (default: %d ms).\n"
|
|
"\t-c check_interval\tTime between two checks of the stored"
|
|
" requests,\n\t\t\t\tin milliseconds (default: %d ms).\n"
|
|
|
|
"Autocalibration options:\n"
|
|
"\t-A\t\t\tEnable autocalibration (default: disabled).\n"
|
|
"\t-O port\t\t\tPort on which autocalibration orders are"
|
|
" sent to\n\t\t\t\tthe listeners (default: %d).\n"
|
|
"\t-H port\t\t\tPort on which autocalibration hello are"
|
|
" received\n\t\t\t\tfrom the listeners (default: %d).\n"
|
|
"\t-K ap_keep_timeout\tInactive APs are kept during"
|
|
" 'ap_keep_timeout'\n\t\t\t\tseconds (default: %d s).\n"
|
|
"\t-C ap_check_interval\tTime (in milliseconds) between two"
|
|
" checks of the\n\t\t\t\tstored APs (default: %d ms).\n"
|
|
,
|
|
program_name,
|
|
program_name,
|
|
program_name,
|
|
DEFAULT_CONFIG_FILE,
|
|
POSITIONER_DEFAULT_IP,
|
|
OWL_DEFAULT_AGGREGATION_PORT,
|
|
OWL_DEFAULT_LISTENER_PORT,
|
|
DEFAULT_AGGREGATE_TIMEOUT,
|
|
DEFAULT_KEEP_TIMEOUT,
|
|
DEFAULT_CHECK_INTERVAL,
|
|
OWL_DEFAULT_AUTOCALIBRATION_ORDER_PORT,
|
|
OWL_DEFAULT_AUTOCALIBRATION_HELLO_PORT,
|
|
DEFAULT_AP_KEEP_TIMEOUT,
|
|
DEFAULT_AP_CHECK_INTERVAL
|
|
) ;
|
|
}
|
|
|
|
|
|
void print_version()
|
|
{
|
|
printf("This is OwlPS Aggregator, part of the Owl"
|
|
" Positioning System project.\n"
|
|
"Version: %s.\n",
|
|
#ifdef OWLPS_VERSION
|
|
OWLPS_VERSION
|
|
#else // OWLPS_VERSION
|
|
"unknown version"
|
|
#endif // OWLPS_VERSION
|
|
) ;
|
|
}
|