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[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>
hifive-unleashed-5.1
Jack Morgenstein 2005-09-26 11:47:53 -07:00 committed by Roland Dreier
parent 2cc78eb52b
commit 0c33aeedb2
1 changed files with 12 additions and 6 deletions
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18
drivers/infiniband/core/verbs.c
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@ -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);