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authorParav Pandit <parav@mellanox.com>2019-02-26 14:01:46 +0200
committerJason Gunthorpe <jgg@mellanox.com>2019-03-28 14:52:02 -0300
commit41c6140189afdf67bd07d7bbe2d8f9382b6f9ef7 (patch)
tree5a82ffb0e06801b4e617cd2646f81cf14b1212c4 /drivers/infiniband/core/cma.c
parentRDMA/core: Add module param to disable device sharing among net ns (diff)
downloadlinux-dev-41c6140189afdf67bd07d7bbe2d8f9382b6f9ef7.tar.xz
linux-dev-41c6140189afdf67bd07d7bbe2d8f9382b6f9ef7.zip
RDMA: Check net namespace access for uverbs, umad, cma and nldev
Introduce an API rdma_dev_access_netns() to check whether a rdma device can be accessed from the specified net namespace or not. Use rdma_dev_access_netns() while opening character uverbs, umad network device and also check while rdma cm_id binds to rdma device. Signed-off-by: Parav Pandit <parav@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/infiniband/core/cma.c')
-rw-r--r--drivers/infiniband/core/cma.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
index a8b9c66c8525..895899230a7e 100644
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -616,6 +616,9 @@ cma_validate_port(struct ib_device *device, u8 port,
int dev_type = dev_addr->dev_type;
struct net_device *ndev = NULL;
+ if (!rdma_dev_access_netns(device, id_priv->id.route.addr.dev_addr.net))
+ return ERR_PTR(-ENODEV);
+
if ((dev_type == ARPHRD_INFINIBAND) && !rdma_protocol_ib(device, port))
return ERR_PTR(-ENODEV);