Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 0c33aeed authored by Jack Morgenstein's avatar Jack Morgenstein Committed by Roland Dreier
Browse files

[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: default avatarJack Morgenstein <jackm@mellanox.co.il>
Signed-off-by: default avatarRoland Dreier <rolandd@cisco.com>
parent 2cc78eb5

drivers/infiniband/core/verbs.c

+12 −6
Original line number Diff line number Diff line
@@ -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);