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authorJack Morgenstein <jackm@mellanox.co.il>2005-09-26 11:47:53 -0700
committerRoland Dreier <rolandd@cisco.com>2005-10-17 15:20:24 -0700
commit0c33aeedb2cf99d877ad9adc7c3df07870f60293 (patch)
tree7f6b23172b327ebd8b5d4f5d40aa216ba48600a2 /drivers/infiniband
parent2cc78eb52bc1ae89f0a4fa5a00eb998dffde4a9f (diff)
[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')
-rw-r--r--drivers/infiniband/core/verbs.c18
1 files changed, 12 insertions, 6 deletions
diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c
index 5081d903e56..72d3ef786db 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);