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diff --git a/sys/netlink/route/iface.c b/sys/netlink/route/iface.c
--- a/sys/netlink/route/iface.c
+++ b/sys/netlink/route/iface.c
@@ -360,8 +360,10 @@
NL_DECLARE_STRICT_PARSER(ifmsg_parser, struct ifinfomsg, check_ifmsg, nlf_p_if, nla_p_if);
static bool
-match_iface(struct nl_parsed_link *attrs, struct ifnet *ifp)
+match_iface(struct ifnet *ifp, void *_arg)
{
+ struct nl_parsed_link *attrs = (struct nl_parsed_link *)_arg;
+
if (attrs->ifi_index != 0 && attrs->ifi_index != ifp->if_index)
return (false);
if (attrs->ifi_type != 0 && attrs->ifi_index != ifp->if_type)
@@ -373,6 +375,15 @@
return (true);
}
+static int
+dump_cb(struct ifnet *ifp, void *_arg)
+{
+ struct netlink_walkargs *wa = (struct netlink_walkargs *)_arg;
+ if (!dump_iface(wa->nw, ifp, &wa->hdr, 0))
+ return (ENOMEM);
+ return (0);
+}
+
/*
* {nlmsg_len=52, nlmsg_type=RTM_GETLINK, nlmsg_flags=NLM_F_REQUEST, nlmsg_seq=1662842818, nlmsg_pid=0},
* {ifi_family=AF_PACKET, ifi_type=ARPHRD_NETROM, ifi_index=0, ifi_flags=0, ifi_change=0},
@@ -417,7 +428,7 @@
}
if (ifp != NULL) {
- if (match_iface(&attrs, ifp)) {
+ if (match_iface(ifp, &attrs)) {
if (!dump_iface(wa.nw, ifp, &wa.hdr, 0))
error = ENOMEM;
} else
@@ -438,46 +449,7 @@
*/
NL_LOG(LOG_DEBUG2, "Start dump");
-
- struct ifnet **match_array = NULL;
- int offset = 0, base_count = 0;
-
- NLP_LOG(LOG_DEBUG3, nlp, "MATCHING: index=%u type=%d name=%s",
- attrs.ifi_index, attrs.ifi_type, attrs.ifla_ifname);
- NET_EPOCH_ENTER(et);
- CK_STAILQ_FOREACH(ifp, &V_ifnet, if_link) {
- wa.count++;
- if (match_iface(&attrs, ifp)) {
- if (offset >= base_count) {
- /* Too many matches, need to reallocate */
- struct ifnet **new_array;
- /* Start with 128 bytes, do 2x increase on each realloc */
- base_count = (base_count != 0) ? base_count * 2 : 16;
- new_array = malloc(base_count * sizeof(void *), M_TEMP, M_NOWAIT);
- if (new_array == NULL) {
- error = ENOMEM;
- break;
- }
- memcpy(new_array, match_array, offset * sizeof(void *));
- free(match_array, M_TEMP);
- match_array = new_array;
- }
-
- if (if_try_ref(ifp))
- match_array[offset++] = ifp;
- }
- }
- NET_EPOCH_EXIT(et);
-
- NL_LOG(LOG_DEBUG2, "Matched %d interface(s), dumping", offset);
- for (int i = 0; error == 0 && i < offset; i++) {
- if (!dump_iface(wa.nw, match_array[i], &wa.hdr, 0))
- error = ENOMEM;
- }
- for (int i = 0; i < offset; i++)
- if_rele(match_array[i]);
- free(match_array, M_TEMP);
-
+ if_foreach_sleep(match_iface, &attrs, dump_cb, &wa);
NL_LOG(LOG_DEBUG2, "End dump, iterated %d dumped %d", wa.count, wa.dumped);
if (!nlmsg_end_dump(wa.nw, error, &wa.hdr)) {

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