#include "darkstat.h"
#include "acct.h"
#include "cap.h"
+#include "config.h"
#include "conv.h"
#include "daylog.h"
#include "db.h"
#include "dns.h"
+#include "err.h"
#include "http.h"
#include "hosts_db.h"
#include "localip.h"
#include "ncache.h"
#include "pidfile.h"
-#include "err.h"
-#include <arpa/inet.h>
#include <assert.h>
#include <errno.h>
#include <signal.h>
static volatile int running = 1;
static void sig_shutdown(int signum _unused_) { running = 0; }
-static volatile int reset_pending = 0;
-static void sig_reset(int signum _unused_) { reset_pending = 1; }
+static volatile int reset_pending = 0, export_pending = 0;
+static void sig_reset(int signum _unused_)
+{
+ reset_pending = 1;
+ export_pending = 1;
+}
+
+static void sig_export(int signum _unused_) { export_pending = 1; }
/* --- Commandline parsing --- */
static unsigned long
return n;
}
-const char *interface = NULL;
-static void cb_interface(const char *arg) { interface = arg; }
+const char *opt_interface = NULL;
+static void cb_interface(const char *arg) { opt_interface = arg; }
-const char *capfile = NULL;
-static void cb_capfile(const char *arg) { capfile = arg; }
+const char *opt_capfile = NULL;
+static void cb_capfile(const char *arg) { opt_capfile = arg; }
-int want_snaplen = -1;
-static void cb_snaplen(const char *arg) { want_snaplen = parsenum(arg, 0); }
+int opt_want_snaplen = -1;
+static void cb_snaplen(const char *arg)
+{ opt_want_snaplen = (int)parsenum(arg, 0); }
-int want_pppoe = 0;
-static void cb_pppoe(const char *arg _unused_) { want_pppoe = 1; }
+int opt_want_pppoe = 0;
+static void cb_pppoe(const char *arg _unused_) { opt_want_pppoe = 1; }
-static void cb_syslog(const char *arg _unused_) { want_syslog = 1; }
+int opt_want_syslog = 0;
+static void cb_syslog(const char *arg _unused_) { opt_want_syslog = 1; }
-static void cb_verbose(const char *arg _unused_) { want_verbose = 1; }
+int opt_want_verbose = 0;
+static void cb_verbose(const char *arg _unused_) { opt_want_verbose = 1; }
-int want_daemonize = 1;
-static void cb_no_daemon(const char *arg _unused_) { want_daemonize = 0; }
+int opt_want_daemonize = 1;
+static void cb_no_daemon(const char *arg _unused_) { opt_want_daemonize = 0; }
-int want_promisc = 1;
-static void cb_no_promisc(const char *arg _unused_) { want_promisc = 0; }
+int opt_want_promisc = 1;
+static void cb_no_promisc(const char *arg _unused_) { opt_want_promisc = 0; }
-int want_dns = 1;
-static void cb_no_dns(const char *arg _unused_) { want_dns = 0; }
+int opt_want_dns = 1;
+static void cb_no_dns(const char *arg _unused_) { opt_want_dns = 0; }
-int want_macs = 1;
-static void cb_no_macs(const char *arg _unused_) { want_macs = 0; }
+int opt_want_macs = 1;
+static void cb_no_macs(const char *arg _unused_) { opt_want_macs = 0; }
-int want_lastseen = 1;
-static void cb_no_lastseen(const char *arg _unused_) { want_lastseen = 0; }
+int opt_want_lastseen = 1;
+static void cb_no_lastseen(const char *arg _unused_) { opt_want_lastseen = 0; }
-unsigned short bindport = 667;
-static void cb_port(const char *arg) { bindport = parsenum(arg, 65536); }
+unsigned short opt_bindport = 667;
+static void cb_port(const char *arg)
+{ opt_bindport = (unsigned short)parsenum(arg, 65536); }
-in_addr_t bindaddr = INADDR_ANY;
-static void cb_bindaddr(const char *arg)
-{
- bindaddr = inet_addr(arg);
- if (bindaddr == (in_addr_t)INADDR_NONE)
- errx(1, "malformed address \"%s\"", arg);
-}
+static void cb_bindaddr(const char *arg) { http_add_bindaddr(arg); }
-const char *filter = NULL;
-static void cb_filter(const char *arg) { filter = arg; }
+const char *opt_filter = NULL;
+static void cb_filter(const char *arg) { opt_filter = arg; }
static void cb_local(const char *arg) { acct_init_localnet(arg); }
-const char *chroot_dir = NULL;
-static void cb_chroot(const char *arg) { chroot_dir = arg; }
+const char *opt_chroot_dir = NULL;
+static void cb_chroot(const char *arg) { opt_chroot_dir = arg; }
-const char *privdrop_user = NULL;
-static void cb_user(const char *arg) { privdrop_user = arg; }
+const char *opt_privdrop_user = NULL;
+static void cb_user(const char *arg) { opt_privdrop_user = arg; }
const char *daylog_fn = NULL;
static void cb_daylog(const char *arg)
{
- if (chroot_dir == NULL)
+ if (opt_chroot_dir == NULL)
errx(1, "the daylog file is relative to the chroot.\n"
"You must specify a --chroot dir before you can use --daylog.");
else
const char *import_fn = NULL;
static void cb_import(const char *arg)
{
- if (chroot_dir == NULL)
+ if (opt_chroot_dir == NULL)
errx(1, "the import file is relative to the chroot.\n"
"You must specify a --chroot dir before you can use --import.");
else
const char *export_fn = NULL;
static void cb_export(const char *arg)
{
- if ((chroot_dir == NULL) && (capfile == NULL))
+ if ((opt_chroot_dir == NULL) && (opt_capfile == NULL))
errx(1, "the export file is relative to the chroot.\n"
"You must specify a --chroot dir before you can use --export.");
else
static const char *pid_fn = NULL;
static void cb_pidfile(const char *arg)
{
- if (chroot_dir == NULL)
+ if (opt_chroot_dir == NULL)
errx(1, "the pidfile is relative to the chroot.\n"
"You must specify a --chroot dir before you can use --pidfile.");
else
pid_fn = arg;
}
-unsigned int hosts_max = 1000;
+unsigned int opt_hosts_max = 1000;
static void cb_hosts_max(const char *arg)
-{ hosts_max = parsenum(arg, 0); }
+{ opt_hosts_max = parsenum(arg, 0); }
-unsigned int hosts_keep = 500;
+unsigned int opt_hosts_keep = 500;
static void cb_hosts_keep(const char *arg)
-{ hosts_keep = parsenum(arg, 0); }
+{ opt_hosts_keep = parsenum(arg, 0); }
-unsigned int ports_max = 200;
+unsigned int opt_ports_max = 200;
static void cb_ports_max(const char *arg)
-{ ports_max = parsenum(arg, 65536); }
+{ opt_ports_max = parsenum(arg, 65536); }
-unsigned int ports_keep = 30;
+unsigned int opt_ports_keep = 30;
static void cb_ports_keep(const char *arg)
-{ ports_keep = parsenum(arg, 65536); }
+{ opt_ports_keep = parsenum(arg, 65536); }
-unsigned int highest_port = 65535;
+unsigned int opt_highest_port = 65535;
static void cb_highest_port(const char *arg)
-{ highest_port = parsenum(arg, 65535); }
+{ opt_highest_port = parsenum(arg, 65535); }
-int wait_secs = -1;
+int opt_wait_secs = -1;
static void cb_wait_secs(const char *arg)
-{ wait_secs = parsenum(arg, 0); }
+{ opt_wait_secs = (int)parsenum(arg, 0); }
-int want_hexdump = 0;
-static void cb_hexdump(const char *arg _unused_) { want_hexdump = 1; }
+int opt_want_hexdump = 0;
+static void cb_hexdump(const char *arg _unused_) { opt_want_hexdump = 1; }
/* --- */
{"--no-macs", NULL, cb_no_macs, 0},
{"--no-lastseen", NULL, cb_no_lastseen, 0},
{"-p", "port", cb_port, 0},
- {"-b", "bindaddr", cb_bindaddr, 0},
+ {"-b", "bindaddr", cb_bindaddr, -1},
{"-f", "filter", cb_filter, 0},
{"-l", "network/netmask", cb_local, 0},
{"--chroot", "dir", cb_chroot, 0},
exit(EXIT_FAILURE);
}
- arg->num_seen++;
+ if (arg->num_seen != -1) /* accept more than one */
+ arg->num_seen++;
+
if (arg->arg_name == NULL) {
arg->callback(NULL);
parse_sub_cmdline(argc-1, argv+1);
parse_sub_cmdline(argc, argv);
/* start syslogging as early as possible */
- if (want_syslog) openlog("darkstat", LOG_NDELAY | LOG_PID, LOG_DAEMON);
+ if (opt_want_syslog) openlog("darkstat", LOG_NDELAY | LOG_PID, LOG_DAEMON);
/* some default values */
- if (chroot_dir == NULL) chroot_dir = CHROOT_DIR;
- if (privdrop_user == NULL) privdrop_user = PRIVDROP_USER;
+ if (opt_chroot_dir == NULL) opt_chroot_dir = CHROOT_DIR;
+ if (opt_privdrop_user == NULL) opt_privdrop_user = PRIVDROP_USER;
/* sanity check args */
- if ((interface == NULL) && (capfile == NULL))
+ if ((opt_interface == NULL) && (opt_capfile == NULL))
errx(1, "must specify either interface (-i) or capture file (-r)");
- if ((interface != NULL) && (capfile != NULL))
+ if ((opt_interface != NULL) && (opt_capfile != NULL))
errx(1, "can't specify both interface (-i) and capture file (-r)");
- if ((hosts_max != 0) && (hosts_keep >= hosts_max)) {
- hosts_keep = hosts_max / 2;
+ if ((opt_hosts_max != 0) && (opt_hosts_keep >= opt_hosts_max)) {
+ opt_hosts_keep = opt_hosts_max / 2;
warnx("reducing --hosts-keep to %u, to be under --hosts-max (%u)",
- hosts_keep, hosts_max);
+ opt_hosts_keep, opt_hosts_max);
}
verbosef("max %u hosts, cutting down to %u when exceeded",
- hosts_max, hosts_keep);
+ opt_hosts_max, opt_hosts_keep);
- if ((ports_max != 0) && (ports_keep >= ports_max)) {
- ports_keep = ports_max / 2;
+ if ((opt_ports_max != 0) && (opt_ports_keep >= opt_ports_max)) {
+ opt_ports_keep = opt_ports_max / 2;
warnx("reducing --ports-keep to %u, to be under --ports-max (%u)",
- ports_keep, ports_max);
+ opt_ports_keep, opt_ports_max);
}
verbosef("max %u ports per host, cutting down to %u when exceeded",
- ports_max, ports_keep);
+ opt_ports_max, opt_ports_keep);
- if (want_hexdump && !want_verbose) {
- want_verbose = 1;
+ if (opt_want_hexdump && !opt_want_verbose) {
+ opt_want_verbose = 1;
verbosef("--hexdump implies --verbose");
}
- if (want_hexdump && want_daemonize) {
- want_daemonize = 0;
+ if (opt_want_hexdump && opt_want_daemonize) {
+ opt_want_daemonize = 0;
verbosef("--hexdump implies --no-daemon");
}
}
{
graph_init();
hosts_db_init();
- cap_from_file(capfile, filter);
+ cap_from_file(opt_capfile, opt_filter);
cap_stop();
if (export_fn != NULL) db_export(export_fn);
hosts_db_free();
graph_free();
- verbosef("Total packets: %qu, bytes: %qu", total_packets, total_bytes);
+ verbosef("Total packets: %qu, bytes: %qu",
+ acct_total_packets, acct_total_bytes);
}
/* --- Program body --- */
test_64order();
parse_cmdline(argc-1, argv+1);
- if (capfile) {
+ if (opt_capfile) {
/*
* This is very different from a regular run against a network
* interface.
/* must verbosef() before first fork to init lock */
verbosef("starting up");
- if (pid_fn) pidfile_create(chroot_dir, pid_fn, privdrop_user);
+ if (pid_fn) pidfile_create(opt_chroot_dir, pid_fn, opt_privdrop_user);
- if (want_daemonize) {
+ if (opt_want_daemonize) {
verbosef("daemonizing to run in the background!");
daemonize_start();
verbosef("I am the main process");
if (pid_fn) pidfile_write_close();
/* do this first as it forks - minimize memory use */
- if (want_dns) dns_init(privdrop_user);
- cap_init(interface, filter, want_promisc); /* needs root */
- http_init(bindaddr, bindport, /*maxconn=*/ -1); /* low ports need root */
+ if (opt_want_dns) dns_init(opt_privdrop_user);
+ cap_init(opt_interface, opt_filter, opt_want_promisc); /* needs root */
+ http_listen(opt_bindport);
ncache_init(); /* must do before chroot() */
- privdrop(chroot_dir, privdrop_user);
+ privdrop(opt_chroot_dir, opt_privdrop_user);
/* Don't need root privs for these: */
now = time(NULL);
graph_init();
hosts_db_init();
if (import_fn != NULL) db_import(import_fn);
- localip_init(interface);
+ localip_init(opt_interface);
if (signal(SIGTERM, sig_shutdown) == SIG_ERR)
errx(1, "signal(SIGTERM) failed");
errx(1, "signal(SIGINT) failed");
if (signal(SIGUSR1, sig_reset) == SIG_ERR)
errx(1, "signal(SIGUSR1) failed");
+ if (signal(SIGUSR2, sig_export) == SIG_ERR)
+ errx(1, "signal(SIGUSR2) failed");
verbosef("entering main loop");
daemonize_finish();
now = time(NULL);
+ if (export_pending) {
+ if (export_fn != NULL)
+ db_export(export_fn);
+ export_pending = 0;
+ }
+
if (reset_pending) {
- if (export_fn != NULL) db_export(export_fn); /* FIXME: USR2? */
hosts_db_reset();
graph_reset();
reset_pending = 0;
verbosef("shutting down");
verbosef("pcap stats: %u packets received, %u packets dropped",
- pkts_recv, pkts_drop);
+ cap_pkts_recv, cap_pkts_drop);
+ http_stop();
cap_stop();
dns_stop();
if (export_fn != NULL) db_export(export_fn);
projects / darkstat / blobdiff