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;
r = sd_rtnl_message_new_link(m->rtnl, &message, RTM_GETLINK, 0);
if (r < 0) {
- log_warning("colud not create GETLINK message: %s", strerror(-r));
+ log_warning("could not create GETLINK message: %s", strerror(-r));
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;
- _cleanup_rtnl_message_unref_ sd_rtnl_message *message = NULL, *reply = NULL;
- unsigned flags;
- uint8_t operstate;
-
- r = sd_network_get_link_state(indices[i], &state);
- if (r != -EUNATCH && (r < 0 || !streq(state, "configured"))) {
- /* managed by networkd, but not yet configured */
- return false;
- }
-
- r = sd_rtnl_message_new_link(m->rtnl, &message, RTM_GETLINK, indices[i]);
- if (r < 0) {
- log_warning("could not create GETLINK message: %s", strerror(-r));
- return false;
- }
+ _cleanup_free_ char *state = NULL, *oper_state = NULL;
- r = sd_rtnl_call(m->rtnl, message, 0, &reply);
- if (r < 0) {
- log_debug("could not get link %u: %s", indices[i], strerror(-r));
+ if (sd_network_link_is_loopback(indices[i]))
+ /* ignore loopback devices */
continue;
- }
- r = sd_rtnl_message_link_get_flags(reply, &flags);
- if (r < 0) {
- log_warning("could not get link flags: %s", strerror(-r));
+ 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_rtnl_message_read_u8(reply, IFLA_OPERSTATE, &operstate);
- if (r < 0) {
- log_debug("could not get link operational state: %s", strerror(-r));
- operstate = IF_OPER_UNKNOWN;
- }
-
- if (!(flags & IFF_LOOPBACK) &&
- link_has_carrier(flags, operstate)) {
+ 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;
if (all_configured(m))
sd_event_exit(m->event, 0);
- return 1;
-}
-
-static int newlink_event_handler(sd_rtnl *rtnl, sd_rtnl_message *message, 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;
}
int main(int argc, char *argv[]) {
_cleanup_manager_free_ Manager *m = NULL;
_cleanup_event_source_unref_ sd_event_source *event_source = NULL;
- _cleanup_network_monitor_unref_ sd_network_monitor *monitor = NULL;
int r, fd, events;
umask(0022);
if (!m)
return log_oom();
- r = sd_network_monitor_new(NULL, &monitor);
+ r = sd_event_new(&m->event);
if (r < 0) {
- log_error("Could not create monitor: %s", strerror(-r));
+ log_error("Could not create event: %s", strerror(-r));
goto out;
}
- r = sd_event_new(&m->event);
+ r = sd_rtnl_open(&m->rtnl, 0);
if (r < 0) {
- log_error("Could not create event: %s", strerror(-r));
+ log_error("Could not create rtnl: %s", strerror(-r));
+ goto out;
+ }
+
+ r = sd_network_monitor_new(NULL, &m->monitor);
+ if (r < 0) {
+ log_error("Could not create monitor: %s", strerror(-r));
goto out;
}
- fd = sd_network_monitor_get_fd(monitor);
+ 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(monitor);
+ events = sd_network_monitor_get_events(m->monitor);
if (events < 0) {
log_error("Could not get monitor events: %s", strerror(-r));
goto out;
goto out;
}
- r = sd_rtnl_open(&m->rtnl, RTMGRP_LINK);
- if (r < 0) {
- log_error("Could not create rtnl: %s", strerror(-r));
- goto out;
- }
-
- r = sd_rtnl_attach_event(m->rtnl, m->event, 0);
- if (r < 0) {
- log_error("Could not attach event to rtnl: %s", strerror(-r));
- return r;
- }
-
- r = sd_rtnl_add_match(m->rtnl, RTM_NEWLINK, newlink_event_handler, m);
- if (r < 0)
- return r;
-
if (all_configured(m)) {
r = 0;
goto out;