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- /* Copyright (c) 2010, The Tor Project, Inc. */
- /* See LICENSE for licensing information */
- /**
- * \file status.c
- * \brief Keep status information and log the heartbeat messages.
- **/
- #include "or.h"
- #include "config.h"
- #include "status.h"
- #include "nodelist.h"
- #include "router.h"
- #include "circuitlist.h"
- #include "main.h"
- /** Returns the number of open circuits. */
- static int
- count_circuits(void)
- {
- circuit_t *circ;
- int nr=0;
- for (circ = _circuit_get_global_list(); circ; circ = circ->next)
- nr++;
- return nr;
- }
- /* Takes seconds <b>secs</b> and returns a human-readable uptime string */
- static char *
- secs_to_uptime(long secs)
- {
- long int days = secs / 86400;
- int hours = (secs - (days * 86400)) / 3600;
- int minutes = (secs - (days * 86400) - (hours * 3600)) / 60;
- char *uptime_string = NULL;
- switch (days) {
- case 0:
- tor_asprintf(&uptime_string, "%d:%02d", hours, minutes);
- break;
- case 1:
- tor_asprintf(&uptime_string, "%ld day %d:%02d", days, hours, minutes);
- break;
- default:
- tor_asprintf(&uptime_string, "%ld days %d:%02d", days, hours, minutes);
- break;
- }
- return uptime_string;
- }
- /* Takes <b>bytes</b> and returns a human-readable bandwidth string. */
- static char *
- bytes_to_bandwidth(uint64_t bytes)
- {
- char *bw_string = NULL;
- if (bytes < (1<<20)) /* Less than a megabyte. */
- tor_asprintf(&bw_string, U64_FORMAT" kB", U64_PRINTF_ARG(bytes>>10));
- else if (bytes < (1<<30)) { /* Megabytes. Let's add some precision. */
- double bw = U64_TO_DBL(bytes);
- tor_asprintf(&bw_string, "%.2f MB", bw/(1<<20));
- } else { /* Gigabytes. */
- double bw = U64_TO_DBL(bytes);
- tor_asprintf(&bw_string, "%.2f GB", bw/(1<<30));
- }
- return bw_string;
- }
- /* This function provides the heartbeat log message */
- int
- log_heartbeat(time_t now)
- {
- uint64_t in,out;
- char *bw_sent = NULL;
- char *bw_rcvd = NULL;
- char *uptime = NULL;
- const routerinfo_t *me;
- const node_t *myself;
- or_options_t *options = get_options();
- int is_server = server_mode(options);
- if (is_server) {
- /* Let's check if we are in the current cached consensus. */
- if (!(me = router_get_my_routerinfo()))
- return -1; /* Something stinks, we won't even attempt this. */
- else
- if (!(myself = node_get_by_id(me->cache_info.identity_digest)))
- log_fn(LOG_NOTICE, LD_HEARTBEAT, "Heartbeat: It seems like we are not "
- "in the cached consensus.");
- }
- get_traffic_stats(&in, &out);
- uptime = secs_to_uptime(get_uptime());
- bw_sent = bytes_to_bandwidth(out);
- bw_rcvd = bytes_to_bandwidth(in);
- log_fn(LOG_NOTICE, LD_HEARTBEAT, "Heartbeat: Tor's uptime is %s, with %d "
- "circuits open, I've pushed %s and received %s.",
- uptime, count_circuits(),bw_sent,bw_rcvd);
- tor_free(uptime);
- tor_free(bw_sent);
- tor_free(bw_rcvd);
- return 0;
- }
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