Verify that the returned ifindex by netdev_get_ifindex() is valid.
This might not be the case in the ERSPAN port scenario, which can
not be offloaded.
Signed-off-by: Eelco Chaudron <echau...@redhat.com>
---
v3:
- Fixed netdev reference issue on failure
- Added netdev_flow_api_equals() check
lib/netdev-offload-tc.c | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/lib/netdev-offload-tc.c b/lib/netdev-offload-tc.c
index 9845e8d3f..0105d883f 100644
--- a/lib/netdev-offload-tc.c
+++ b/lib/netdev-offload-tc.c
@@ -1841,7 +1841,25 @@ netdev_tc_flow_put(struct netdev *netdev, struct match
*match,
VLOG_DBG_RL(&rl, "Can't find netdev for output port %d", port);
return ENODEV;
}
+
+ if (!netdev_flow_api_equals(netdev, outdev)) {
+ VLOG_DBG_RL(&rl,
+ "Flow API provider mismatch between ingress (%s) "
+ "and egress (%s) ports",
+ netdev_get_name(netdev), netdev_get_name(outdev));
+ netdev_close(outdev);
+ return EOPNOTSUPP;
+ }
+
action->out.ifindex_out = netdev_get_ifindex(outdev);
+ if (action->out.ifindex_out < 0) {
+ VLOG_DBG_RL(&rl,
+ "Can't find ifindex for output port %s, error %d",
+ netdev_get_name(outdev), action->out.ifindex_out);
+ netdev_close(outdev);
+ return -action->out.ifindex_out;
+ }
+
action->out.ingress = is_internal_port(netdev_get_type(outdev));
action->type = TC_ACT_OUTPUT;
flower.action_count++;
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