IB/mad: Require CM send method for everything except ClassPortInfo

[firefly-linux-kernel-4.4.55.git] / drivers / infiniband / core / mad.c

diff --git a/drivers/infiniband/core/mad.c b/drivers/infiniband/core/mad.c
index 8d8af7a41a30fae4ceb520ce0d11b6f541905c96..2281de122038e45a5c375f7d7669111ab2aee2de 100644 (file)
--- a/drivers/infiniband/core/mad.c
+++ b/drivers/infiniband/core/mad.c
@@ -1811,6 +1811,11 @@ static int validate_mad(const struct ib_mad_hdr *mad_hdr,
                if (qp_num == 0)
                        valid = 1;
        } else {
+               /* CM attributes other than ClassPortInfo only use Send method */
+               if ((mad_hdr->mgmt_class == IB_MGMT_CLASS_CM) &&
+                   (mad_hdr->attr_id != IB_MGMT_CLASSPORTINFO_ATTR_ID) &&
+                   (mad_hdr->method != IB_MGMT_METHOD_SEND))
+                       goto out;
                /* Filter GSI packets sent to QP0 */
                if (qp_num != 0)
                        valid = 1;