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networkd-wait-online: refactor a bit

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Clarify that we are waiting for any link to reach 'carrier' state, regardless
of who manages it. This will be useful when we add support for waiting for more
operational states.
This commit is contained in:
Tom Gundersen 2014-04-24 21:32:25 +02:00
parent cef8b07358
commit 27134b2f05
1 changed files with 36 additions and 41 deletions
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77
src/network/networkd-wait-online.c
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@ -164,56 +164,51 @@ static bool all_configured(Manager *m) {
if (!found) {
/* link exists, but networkd is not yet aware of it */
return false;
}
}
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) {
_cleanup_rtnl_message_unref_ sd_rtnl_message *message = NULL, *reply = NULL;
unsigned flags;
uint8_t operstate;
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;
}
r = sd_rtnl_call(m->rtnl, message, 0, &reply);
if (r < 0) {
log_debug("could not get link %u: %s", indices[i], strerror(-r));
continue;
}
r = sd_rtnl_message_link_get_flags(reply, &flags);
if (r < 0) {
log_warning("could not get link flags: %s", strerror(-r));
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)) {
/* this link is not managed by us,
but something else may have
made it ready, so don't block */
one_ready = true;
}
continue;
} else if (r < 0 || !streq(state, "configured"))
if (r != -EUNATCH && (r < 0 || !streq(state, "configured"))) {
/* managed by networkd, but not yet configured */
return false;
}
/* we wait for at least one link to appear */
one_ready = true;
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;
}
r = sd_rtnl_call(m->rtnl, message, 0, &reply);
if (r < 0) {
log_debug("could not get link %u: %s", indices[i], strerror(-r));
continue;
}
r = sd_rtnl_message_link_get_flags(reply, &flags);
if (r < 0) {
log_warning("could not get link flags: %s", strerror(-r));
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)) {
/* we wait for at least one link to be ready,
regardless of who manages it */
one_ready = true;
}
}
return one_ready;