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| author |   Leon Romanovsky <leonro@mellanox.com> | 2018-10-10 09:19:12 +0300 |
|---|---|---|
| committer |   Doug Ledford <dledford@redhat.com> | 2018-10-16 13:37:16 -0400 |
| commit | 05d940d3a3ec4e6d5d6a726aae4d73c5c64603c6 (patch) | |
| tree | a5f59798685b7383ea7222694d40f7956fa149f0 /drivers/infiniband/core/nldev.c | |
| parent | RDMA/core: Implement IB device rename function (diff) | |
| download | linux-dev-05d940d3a3ec4e6d5d6a726aae4d73c5c64603c6.tar.xz linux-dev-05d940d3a3ec4e6d5d6a726aae4d73c5c64603c6.zip | |
RDMA/nldev: Allow IB device rename through RDMA netlink
Provide an option to rename IB device name through RDMA netlink and
limit it to users with ADMIN capability only.
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/core/nldev.c')
| -rw-r--r-- | drivers/infiniband/core/nldev.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/drivers/infiniband/core/nldev.c b/drivers/infiniband/core/nldev.c index ba5403fbcd88..573399e3ccc1 100644 --- a/drivers/infiniband/core/nldev.c +++ b/drivers/infiniband/core/nldev.c @@ -646,6 +646,36 @@ err: return err; } +static int nldev_set_doit(struct sk_buff *skb, struct nlmsghdr *nlh, + struct netlink_ext_ack *extack) +{ + struct nlattr *tb[RDMA_NLDEV_ATTR_MAX]; + struct ib_device *device; + u32 index; + int err; + + err = nlmsg_parse(nlh, 0, tb, RDMA_NLDEV_ATTR_MAX - 1, nldev_policy, + extack); + if (err || !tb[RDMA_NLDEV_ATTR_DEV_INDEX]) + return -EINVAL; + + index = nla_get_u32(tb[RDMA_NLDEV_ATTR_DEV_INDEX]); + device = ib_device_get_by_index(index); + if (!device) + return -EINVAL; + + if (tb[RDMA_NLDEV_ATTR_DEV_NAME]) { + char name[IB_DEVICE_NAME_MAX] = {}; + + nla_strlcpy(name, tb[RDMA_NLDEV_ATTR_DEV_NAME], + IB_DEVICE_NAME_MAX); + err = ib_device_rename(device, name); + } + + put_device(&device->dev); + return err; +} + static int _nldev_get_dumpit(struct ib_device *device, struct sk_buff *skb, struct netlink_callback *cb, @@ -1078,6 +1108,10 @@ static const struct rdma_nl_cbs nldev_cb_table[RDMA_NLDEV_NUM_OPS] = { .doit = nldev_get_doit, .dump = nldev_get_dumpit, }, + [RDMA_NLDEV_CMD_SET] = { + .doit = nldev_set_doit, + .flags = RDMA_NL_ADMIN_PERM, + }, [RDMA_NLDEV_CMD_PORT_GET] = { .doit = nldev_port_get_doit, .dump = nldev_port_get_dumpit, |