-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
/***
This file is part of systemd.
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include <netinet/ether.h>
-#include <linux/if.h>
#include <getopt.h>
-#include "sd-event.h"
-#include "event-util.h"
-#include "sd-rtnl.h"
-#include "rtnl-util.h"
#include "sd-daemon.h"
-#include "sd-network.h"
-#include "network-util.h"
-#include "network-internal.h"
+
#include "networkd-wait-online.h"
-#include "conf-parser.h"
#include "strv.h"
-#include "util.h"
#include "build.h"
static bool arg_quiet = false;
static char **arg_interfaces = NULL;
-static int help(void) {
-
+static void help(void) {
printf("%s [OPTIONS...]\n\n"
"Block until network is configured.\n\n"
" -h --help Show this help\n"
" --version Print version string\n"
" -q --quiet Do not show status information\n"
- " -i --interface=INTERFACE Block until at least these interfaces have appeared\n",
- program_invocation_short_name);
-
- return 0;
+ " -i --interface=INTERFACE Block until at least these interfaces have appeared\n"
+ , program_invocation_short_name);
}
static int parse_argv(int argc, char *argv[]) {
assert(argc >= 0);
assert(argv);
- while ((c = getopt_long(argc, argv, "+hq", options, NULL)) >= 0) {
+ while ((c = getopt_long(argc, argv, "+hq", options, NULL)) >= 0)
switch (c) {
case 'h':
- return help();
+ help();
+ return 0;
case 'q':
arg_quiet = true;
default:
assert_not_reached("Unhandled option");
}
- }
-
- return 1;
-}
-
-static bool all_configured(Manager *m) {
- _cleanup_free_ unsigned *indices = NULL;
- char **ifname;
- bool one_ready = false;
- int r, n, i;
-
- n = sd_network_get_ifindices(&indices);
- if (n <= 0)
- return false;
-
- /* wait for networkd to be aware of all the links given on the commandline */
- STRV_FOREACH(ifname, arg_interfaces) {
- _cleanup_rtnl_message_unref_ sd_rtnl_message *message = NULL, *reply = NULL;
- bool found = false;
- int index;
-
- r = sd_rtnl_message_new_link(m->rtnl, &message, RTM_GETLINK, 0);
- if (r < 0) {
- log_warning("could not create GETLINK message: %s", strerror(-r));
- return false;
- }
-
- r = sd_rtnl_message_append_string(message, IFLA_IFNAME, *ifname);
- if (r < 0) {
- log_warning("could not attach ifname to GETLINK message: %s", strerror(-r));
- return false;
- }
-
- r = sd_rtnl_call(m->rtnl, message, 0, &reply);
- if (r < 0) {
- if (r != -ENODEV)
- log_warning("could not get link info for %s: %s", *ifname,
- strerror(-r));
-
- /* link does not yet exist */
- return false;
- }
-
- r = sd_rtnl_message_link_get_ifindex(reply, &index);
- if (r < 0) {
- log_warning("could not get ifindex: %s", strerror(-r));
- return false;
- }
-
- if (index <= 0) {
- log_warning("invalid ifindex %d for %s", index, *ifname);
- return false;
- }
-
- for (i = 0; i < n; i++) {
- if (indices[i] == (unsigned) index) {
- found = true;
- break;
- }
- }
-
- if (!found) {
- /* link exists, but networkd is not yet aware of it */
- return false;
- }
- }
-
- /* wait for all links networkd manages to be in admin state 'configured'
- and at least one link to gain a carrier */
- for (i = 0; i < n; i++) {
- _cleanup_free_ char *state = NULL, *oper_state = NULL;
-
- if (sd_network_link_is_loopback(indices[i]))
- /* ignore loopback devices */
- continue;
-
- r = sd_network_get_link_state(indices[i], &state);
- if (r == -EBUSY || (r >= 0 && !streq(state, "configured")))
- /* not yet processed by udev, or managed by networkd, but not yet configured */
- return false;
-
- r = sd_network_get_link_operational_state(indices[i], &oper_state);
- if (r >= 0 &&
- (streq(oper_state, "degraded") ||
- streq(oper_state, "routable")))
- /* we wait for at least one link to be ready,
- regardless of who manages it */
- one_ready = true;
- }
-
- return one_ready;
-}
-
-static int monitor_event_handler(sd_event_source *s, int fd, uint32_t revents,
- void *userdata) {
- Manager *m = userdata;
-
- assert(m);
- assert(m->event);
-
- if (all_configured(m))
- sd_event_exit(m->event, 0);
-
- sd_network_monitor_flush(m->monitor);
return 1;
}
-void manager_free(Manager *m) {
- if (!m)
- return;
-
- sd_event_unref(m->event);
- sd_rtnl_unref(m->rtnl);
-
- free(m);
-}
-
int main(int argc, char *argv[]) {
- _cleanup_manager_free_ Manager *m = NULL;
- _cleanup_event_source_unref_ sd_event_source *event_source = NULL;
- int r, fd, events;
-
- umask(0022);
+ _cleanup_(manager_freep) Manager *m = NULL;
+ int r;
+ log_set_target(LOG_TARGET_AUTO);
log_parse_environment();
log_open();
+ umask(0022);
+
r = parse_argv(argc, argv);
if (r <= 0)
return r;
if (arg_quiet)
log_set_max_level(LOG_WARNING);
- m = new0(Manager, 1);
- if (!m)
- return log_oom();
+ assert_se(sigprocmask_many(SIG_BLOCK, SIGTERM, SIGINT, -1) == 0);
- r = sd_event_new(&m->event);
+ r = manager_new(&m, arg_interfaces);
if (r < 0) {
- log_error("Could not create event: %s", strerror(-r));
- goto out;
+ log_error("Could not create manager: %s", strerror(-r));
+ goto finish;
}
- r = sd_rtnl_open(&m->rtnl, 0);
- if (r < 0) {
- log_error("Could not create rtnl: %s", strerror(-r));
- goto out;
- }
-
- r = sd_network_monitor_new(&m->monitor, NULL);
- if (r < 0) {
- log_error("Could not create monitor: %s", strerror(-r));
- goto out;
- }
-
- fd = sd_network_monitor_get_fd(m->monitor);
- if (fd < 0) {
- log_error("Could not get monitor fd: %s", strerror(-r));
- goto out;
- }
-
- events = sd_network_monitor_get_events(m->monitor);
- if (events < 0) {
- log_error("Could not get monitor events: %s", strerror(-r));
- goto out;
- }
-
- r = sd_event_add_io(m->event, &event_source, fd, events, &monitor_event_handler,
- m);
- if (r < 0) {
- log_error("Could not add io event source: %s", strerror(-r));
- goto out;
- }
-
- if (all_configured(m)) {
+ if (manager_all_configured(m)) {
r = 0;
- goto out;
+ goto finish;
}
sd_notify(false,
r = sd_event_loop(m->event);
if (r < 0) {
log_error("Event loop failed: %s", strerror(-r));
- goto out;
+ goto finish;
}
-out:
- sd_notify(false,
- "STATUS=All interfaces configured...");
+finish:
+ sd_notify(false, "STATUS=All interfaces configured...");
return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
}
~ianmdlvl / elogind.git / blobdiff