diff options
| author |   Jack Morgenstein <jackm@mellanox.co.il> | 2005-09-26 11:47:53 -0700 |
|---|---|---|
| committer |   Roland Dreier <rolandd@cisco.com> | 2005-10-17 15:20:24 -0700 |
| commit | 0c33aeedb2cf99d877ad9adc7c3df07870f60293 (patch) | |
| tree | 7f6b23172b327ebd8b5d4f5d40aa216ba48600a2 /drivers/infiniband/core/verbs.c | |
| parent | Increase default RCU batching sharply (diff) | |
| download | linux-dev-0c33aeedb2cf99d877ad9adc7c3df07870f60293.tar.xz linux-dev-0c33aeedb2cf99d877ad9adc7c3df07870f60293.zip | |
[IB] Add checks to multicast attach and detach
Add checks so that we only allow multicast attach/detach with
a valid multicast GID and the correct QP type.
Signed-off-by: Jack Morgenstein <jackm@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/core/verbs.c')
| -rw-r--r-- | drivers/infiniband/core/verbs.c | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c index 5081d903e561..72d3ef786db5 100644 --- a/drivers/infiniband/core/verbs.c +++ b/drivers/infiniband/core/verbs.c @@ -523,16 +523,22 @@ EXPORT_SYMBOL(ib_dealloc_fmr); int ib_attach_mcast(struct ib_qp *qp, union ib_gid *gid, u16 lid) { - return qp->device->attach_mcast ? - qp->device->attach_mcast(qp, gid, lid) : - -ENOSYS; + if (!qp->device->attach_mcast) + return -ENOSYS; + if (gid->raw[0] != 0xff || qp->qp_type != IB_QPT_UD) + return -EINVAL; + + return qp->device->attach_mcast(qp, gid, lid); } EXPORT_SYMBOL(ib_attach_mcast); int ib_detach_mcast(struct ib_qp *qp, union ib_gid *gid, u16 lid) { - return qp->device->detach_mcast ? - qp->device->detach_mcast(qp, gid, lid) : - -ENOSYS; + if (!qp->device->detach_mcast) + return -ENOSYS; + if (gid->raw[0] != 0xff || qp->qp_type != IB_QPT_UD) + return -EINVAL; + + return qp->device->detach_mcast(qp, gid, lid); } EXPORT_SYMBOL(ib_detach_mcast); |