RDMA/ocrdma: Don't allow zero/invalid sgid usage
Signed-off-by: Naresh Gottumukkala <bgottumukkala@emulex.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
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@ -2124,9 +2124,10 @@ static int ocrdma_set_av_params(struct ocrdma_qp *qp,
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{
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int status;
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struct ib_ah_attr *ah_attr = &attrs->ah_attr;
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union ib_gid sgid;
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union ib_gid sgid, zgid;
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u32 vlan_id;
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u8 mac_addr[6];
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if ((ah_attr->ah_flags & IB_AH_GRH) == 0)
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return -EINVAL;
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cmd->params.tclass_sq_psn |=
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@ -2142,6 +2143,11 @@ static int ocrdma_set_av_params(struct ocrdma_qp *qp,
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ah_attr->grh.sgid_index, &sgid);
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if (status)
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return status;
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memset(&zgid, 0, sizeof(zgid));
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if (!memcmp(&sgid, &zgid, sizeof(zgid)))
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return -EINVAL;
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qp->sgid_idx = ah_attr->grh.sgid_index;
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memcpy(&cmd->params.sgid[0], &sgid.raw[0], sizeof(cmd->params.sgid));
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ocrdma_resolve_dgid(qp->dev, &ah_attr->grh.dgid, &mac_addr[0]);
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