[PATCH rdma-next v2 5/7] RDMA/core: Configure selinux QP during creation

Leon Romanovsky
2021-08-03T18:21:27Z

All QP creation flows called ib_create_qp_security(), but differently.
This caused to the need to provide exclusion conditions for the XRC_TGT,
because such QP already had selinux configuration call.

In order to fix it, move ib_create_qp_security() to the general QP
creation routine.

Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
---
drivers/infiniband/core/uverbs_cmd.c | 7 -------
drivers/infiniband/core/uverbs_std_types_qp.c | 6 ------
drivers/infiniband/core/verbs.c | 11 +++++++----
3 files changed, 7 insertions(+), 17 deletions(-)

diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c
index 8c8ca7bce3ca..b5153200b8a8 100644
--- a/drivers/infiniband/core/uverbs_cmd.c
+++ b/drivers/infiniband/core/uverbs_cmd.c
@@ -1447,10 +1447,6 @@ static int create_qp(struct uverbs_attr_bundle *attrs,
}

if (cmd->qp_type != IB_QPT_XRC_TGT) {
- ret = ib_create_qp_security(qp, device);
- if (ret)
- goto err_cb;
-
atomic_inc(&pd->usecnt);
if (attr.send_cq)
atomic_inc(&attr.send_cq->usecnt);
@@ -1502,9 +1498,6 @@ static int create_qp(struct uverbs_attr_bundle *attrs,
resp.response_length = uverbs_response_length(attrs, sizeof(resp));
return uverbs_response(attrs, &resp, sizeof(resp));

-err_cb:
- ib_destroy_qp_user(qp, uverbs_get_cleared_udata(attrs));
-
err_put:
if (!IS_ERR(xrcd_uobj))
uobj_put_read(xrcd_uobj);
diff --git a/drivers/infiniband/core/uverbs_std_types_qp.c b/drivers/infiniband/core/uverbs_std_types_qp.c
index c00cfb5ed387..92812f6a21b0 100644
--- a/drivers/infiniband/core/uverbs_std_types_qp.c
+++ b/drivers/infiniband/core/uverbs_std_types_qp.c
@@ -280,12 +280,6 @@ static int UVERBS_HANDLER(UVERBS_METHOD_QP_CREATE)(
obj->uevent.uobject.object = qp;
uverbs_finalize_uobj_create(attrs, UVERBS_ATTR_CREATE_QP_HANDLE);

- if (attr.qp_type != IB_QPT_XRC_TGT) {
- ret = ib_create_qp_security(qp, device);
- if (ret)
- return ret;
- }
-
set_caps(&attr, &cap, false);
ret = uverbs_copy_to_struct_or_zero(attrs,
UVERBS_ATTR_CREATE_QP_RESP_CAP, &cap,
diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c
index a7717df83273..1f0f0beebe22 100644
--- a/drivers/infiniband/core/verbs.c
+++ b/drivers/infiniband/core/verbs.c
@@ -1216,6 +1216,7 @@ struct ib_qp *_ib_create_qp(struct ib_device *dev, struct ib_pd *pd,
struct ib_udata *udata, struct ib_uqp_object *uobj,
const char *caller)
{
+ struct ib_udata dummy = {};
struct ib_qp *qp;
int ret;

@@ -1256,9 +1257,15 @@ struct ib_qp *_ib_create_qp(struct ib_device *dev, struct ib_pd *pd,
qp->send_cq = attr->send_cq;
qp->recv_cq = attr->recv_cq;

+ ret = ib_create_qp_security(qp, dev);
+ if (ret)
+ goto err_security;
+
rdma_restrack_add(&qp->res);
return qp;

+err_security:
+ qp->device->ops.destroy_qp(qp, udata ? &dummy : NULL);
err_create:
rdma_restrack_put(&qp->res);
kfree(qp);
@@ -1288,10 +1295,6 @@ struct ib_qp *ib_create_qp_kernel(struct ib_pd *pd,
if (IS_ERR(qp))
return qp;

- ret = ib_create_qp_security(qp, device);
- if (ret)
- goto err;
-
if (qp_init_attr->qp_type == IB_QPT_XRC_TGT) {
struct ib_qp *xrc_qp =
create_xrc_qp_user(qp, qp_init_attr);
--
2.31.1