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| author | Parav Pandit <parav@mellanox.com> | 2018-07-16 11:50:13 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-09-19 22:43:45 +0200 |
| commit | bdbf6e0b93261127196a6dbfc180aabf44e1a296 (patch) | |
| tree | 3382d402800e0deb7029ce77b823479ec27850e7 /drivers/infiniband | |
| parent | 0d1d365d1d4423b55e3a18e1d1ad2036aa1708ea (diff) | |
| download | linux-rt-bdbf6e0b93261127196a6dbfc180aabf44e1a296.tar.gz | |
RDMA/cma: Do not ignore net namespace for unbound cm_id
[ Upstream commit 643d213a9a034fa04f5575a40dfc8548e33ce04f ]
Currently if the cm_id is not bound to any netdevice, than for such cm_id,
net namespace is ignored; which is incorrect.
Regardless of cm_id bound to a netdevice or not, net namespace must
match. When a cm_id is bound to a netdevice, in such case net namespace
and netdevice both must match.
Fixes: 4c21b5bcef73 ("IB/cma: Add net_dev and private data checks to RDMA CM")
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Daniel Jurgens <danielj@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/infiniband')
| -rw-r--r-- | drivers/infiniband/core/cma.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c index 79843a3ca9dc..752dbc388c27 100644 --- a/drivers/infiniband/core/cma.c +++ b/drivers/infiniband/core/cma.c @@ -1459,9 +1459,16 @@ static bool cma_match_net_dev(const struct rdma_cm_id *id, (addr->src_addr.ss_family == AF_IB || cma_protocol_roce_dev_port(id->device, port_num)); - return !addr->dev_addr.bound_dev_if || - (net_eq(dev_net(net_dev), addr->dev_addr.net) && - addr->dev_addr.bound_dev_if == net_dev->ifindex); + /* + * Net namespaces must match, and if the listner is listening + * on a specific netdevice than netdevice must match as well. + */ + if (net_eq(dev_net(net_dev), addr->dev_addr.net) && + (!!addr->dev_addr.bound_dev_if == + (addr->dev_addr.bound_dev_if == net_dev->ifindex))) + return true; + else + return false; } static struct rdma_id_private *cma_find_listener( |