From: Daniel Jurgens <danielj@xxxxxxxxxxxx>
For now the only LSM security enforcement mechanism available is
specific to InfiniBand. Bypass enforcement for non-IB link types.
This fixes a regression where modify_qp fails for iWARP because
querying the PKEY returns -EINVAL.
Cc: Paul Moore <paul@xxxxxxxxxxxxxx>
Cc: Don Dutile <ddutile@xxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Reported-by: Potnuri Bharat Teja <bharat@xxxxxxxxxxx>
Fixes: d291f1a65232("IB/core: Enforce PKey security on QPs")
Fixes: 47a2b338fe63("IB/core: Enforce security on management datagrams")
Signed-off-by: Daniel Jurgens <danielj@xxxxxxxxxxxx>
Reviewed-by: Parav Pandit <parav@xxxxxxxxxxxx>
Tested-by: Potnuri Bharat Teja <bharat@xxxxxxxxxxx>
Signed-off-by: Leon Romanovsky <leon@xxxxxxxxxx>
---
drivers/infiniband/core/security.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/drivers/infiniband/core/security.c b/drivers/infiniband/core/security.c
index 23278ed5be45..314bf1137c7b 100644
--- a/drivers/infiniband/core/security.c
+++ b/drivers/infiniband/core/security.c
@@ -417,8 +417,17 @@ void ib_close_shared_qp_security(struct ib_qp_security *sec)
int ib_create_qp_security(struct ib_qp *qp, struct ib_device *dev)
{
+ u8 i = rdma_start_port(dev);
+ bool is_ib = false;
int ret;
+ while (i <= rdma_end_port(dev) && !is_ib)
+ is_ib = rdma_protocol_ib(dev, i++);
+
+ /* If this isn't an IB device don't create the security context */
+ if (!is_ib)
+ return 0;
+
qp->qp_sec = kzalloc(sizeof(*qp->qp_sec), GFP_KERNEL);
if (!qp->qp_sec)
return -ENOMEM;
--
2.15.0
--
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