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-rw-r--r--net/mctp/route.c14
1 files changed, 13 insertions, 1 deletions
diff --git a/net/mctp/route.c b/net/mctp/route.c
index acc5bb39e16d..e20f3096d067 100644
--- a/net/mctp/route.c
+++ b/net/mctp/route.c
@@ -1026,10 +1026,15 @@ static int mctp_route_nlparse(struct sk_buff *skb, struct nlmsghdr *nlh,
return 0;
}
+static const struct nla_policy rta_metrics_policy[RTAX_MAX + 1] = {
+ [RTAX_MTU] = { .type = NLA_U32 },
+};
+
static int mctp_newroute(struct sk_buff *skb, struct nlmsghdr *nlh,
struct netlink_ext_ack *extack)
{
struct nlattr *tb[RTA_MAX + 1];
+ struct nlattr *tbx[RTAX_MAX + 1];
mctp_eid_t daddr_start;
struct mctp_dev *mdev;
struct rtmsg *rtm;
@@ -1046,8 +1051,15 @@ static int mctp_newroute(struct sk_buff *skb, struct nlmsghdr *nlh,
return -EINVAL;
}
- /* TODO: parse mtu from nlparse */
mtu = 0;
+ if (tb[RTA_METRICS]) {
+ rc = nla_parse_nested(tbx, RTAX_MAX, tb[RTA_METRICS],
+ rta_metrics_policy, NULL);
+ if (rc < 0)
+ return rc;
+ if (tbx[RTAX_MTU])
+ mtu = nla_get_u32(tbx[RTAX_MTU]);
+ }
if (rtm->rtm_type != RTN_UNICAST)
return -EINVAL;