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powerd: use snl_get_genl_mcast_group() API

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This commit is contained in:
Gleb Smirnoff
2025-01-15 19:33:16 -08:00
parent 521c1fe0e2
commit c1f6b799a7
1 changed files with 8 additions and 16 deletions
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usr.sbin/powerd/powerd.c
+8 -16
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@@ -464,31 +464,23 @@ acline_read(int rfds)
bool
netlink_init(void)
{
struct _getfamily_attrs attrs;
uint32_t group;
if (modfind("nlsysevent") < 0)
kldload("nlsysevent");
if (modfind("nlsysevent") < 0)
return (false);
if (!snl_init(&ss, NETLINK_GENERIC))
if (!snl_init(&ss, NETLINK_GENERIC) || (group =
snl_get_genl_mcast_group(&ss, "nlsysevent", "ACPI", NULL)) == 0) {
warnx("Cannot find \"nlsysevent\" family \"ACPI\" group");
return (false);
}
if (!snl_get_genl_family_info(&ss, "nlsysevent", &attrs))
if (setsockopt(ss.fd, SOL_NETLINK, NETLINK_ADD_MEMBERSHIP, &group,
sizeof(group)) == -1) {
warnx("Cannot subscribe to \"ACPI\"");
return (false);
for (unsigned int i = 0; i < attrs.mcast_groups.num_groups; i++) {
if (strcmp(attrs.mcast_groups.groups[i]->mcast_grp_name,
"ACPI") == 0) {
if (setsockopt(ss.fd, SOL_NETLINK,
NETLINK_ADD_MEMBERSHIP,
&attrs.mcast_groups.groups[i]->mcast_grp_id,
sizeof(attrs.mcast_groups.groups[i]->mcast_grp_id))
== -1) {
warnx("Cannot subscribe to \"ACPI\"");
return (false);
}
}
}
return (true);
}